CN111977034A - Bag opening and filling mechanism and using method thereof - Google Patents

Abstract

The invention relates to the technical field of packaging, in particular to a bag opening and filling mechanism and a method of use. The bag discharging unit; the second suction cup units are divided into two groups and are located on both sides of the bag mouth of the packaging bag, and each group of second suction cup units includes a second suction cup group and drives the suction cups at the second suction cup group to generate travel and phase. The second suction cup that moves away from the bag is driven; the bag opening and discharging unit includes a first shell-shaped body and a second shell-shaped body. The advantage of the invention is that after the packaging bag is sucked open by the second suction cup unit, the material is put into the packaging bag by the bag opening and discharging unit, which provides mechanical support for automatic bag opening and discharging.

Description

A kind of open bag filling mechanism and using method thereof

technical field

The invention relates to the technical field of packaging, in particular to a bag opening and filling mechanism and a method of use.

Background technique

The current nut packaging is all manual or semi-manual work by intensive personnel, and there is no guarantee in terms of safety, hygiene and accuracy, and the rework rate is high and the secondary waste is large. Specifically: on the one hand, pure manual or semi-manual operations cause employees to be labor-intensive, easily fatigued, have negative emotions, and are prone to errors; Packing, rework, and even handling back and forth between stations are all in the same space, which is easy to cause congestion, low overall work efficiency, and low packaging accuracy.

SUMMARY OF THE INVENTION

In order to provide a mechanical structure for realizing the automatic opening of the packaging bag, the present invention provides an opening and filling mechanism. The present invention adopts the following technical solutions:

An open bag filling mechanism, comprising a second suction cup unit that spreads both sides of a packaging bag, and an open bag discharging unit that spreads the packaging bag and places materials, the second suction cup unit includes two suction cups, which are respectively The second suction cup group for sucking the outer sides of the two sides of the packaging bag, and the second suction cup driving for driving the two suction cups to move oppositely at the same time; The shell-shaped body and the second shell-shaped body, the bag-stretching support plate, and the rotary drive fixed on the bag-stretching and discharging support plate, the rotary drive drives the first shell-shaped body and the second shell-shaped body to rotate.

A method of using the above-mentioned bag opening and filling mechanism, comprising the following steps:

S51. When the second suction cup unit moves toward the middle, the packaging bag moves upward, and the bag holding unit at the bottom of the packaging bag drives the bottom of the packaging bag to move upward at the same time; until the two opposite suction cups in the second suction cup unit fully fit the corresponding surfaces of the packaging bag Afterwards, the two suction cups in the second suction cup unit move in opposite directions to suck open the packaging bag. When the two suction cups reach the set distance, the control mechanism controls the shell-shaped body in the bag opening and discharging unit from closing. The station moves to the start position;

S52, the two suction cups continue to move in opposite directions until the first elastic member and the corresponding shell-shaped body press the packaging bag, and after the shell-shaped body is in the starting position, the detection hole and the suction surface of the corresponding suction cup are just separated by the surface of the packaging bag;

S53. The control mechanism obtains the negative pressure value of the suction cup through the negative pressure detection components on both sides. As long as the negative pressure value on one side of the packaging bag cannot reach the set value, it means that one side of the packaging bag is not opened, and the control mechanism controls and controls the corresponding mechanism. work, otherwise go to step S54;

S54, the control mechanism controls the material to enter the opened packaging bag through the blanking gap formed between the first shell-shaped body and the second shell-shaped body at the starting position.

The advantages of the present invention are:

(1) In the present invention, after the packaging bag is sucked open by the second suction cup unit, the material is then put into the packaging bag through the bag opening and discharging unit to provide mechanical support for automatic bag opening and discharging.

(2) The hinge hole and the force hole cooperate with the rotary drive to drive the first shell-shaped body and the second shell-shaped body to rotate around the hinge hole, so that the two are replaced at the opening position and the closing position.

(3) The function of the first elastic part is to prevent the packaging bag from slipping off when the material is filled and to protect the packaging bag after the shell body presses the packaging bag.

(4) The suction cup is fixed by means of the front end link and the rear end link, and the movement of the suction cup is realized by moving the front end link and the rear end link.

(5) Both the front end link and the rear end link are provided with a suction cup and a first elastic member for simultaneously acting on a plurality of packaging bags in the longitudinal direction, and can process a plurality of packaging bags at the same time.

(6) The second suction bag drive ensures that the synchronous movement of the front end link and the rear end link can be achieved by using one power component.

(7) As long as one side of the negative pressure detection components corresponding to the suction cup units on the left and right sides of the packaging bag fails to reach the set value, it means that the packaging bag is not opened.

(8) A shell power component is used to ensure that the first shell and the second shell work at the same time to prevent failures.

(9) This method can well realize the effect of bag opening and discharging.

(10) The annular section formed by the two shell-shaped bodies in the open state can effectively solve the material filling jam.

It should be noted that the main protection of the present invention is to enable the packaging bag to be transferred between various processes, but not to protect the software part therein.

Description of drawings

Figure 1 is an overall diagram of the system.

FIG. 2 is a perspective view of the material supply mechanism.

FIG. 3 is a perspective view of the material diverting and conveying unit.

FIG. 4 is a perspective view of the first transfer unit.

FIG. 5 is a perspective view of the second transfer unit.

6 and 7 are cross-sectional views at the second conveying unit and the first material shaping unit.

Fig. 8 is a perspective view of the bag supply mechanism.

Figure 9 is a bottom view of the bag compartment.

Figure 10 is a perspective view of the bag transport mechanism and the finished product output mechanism on the bag transport mechanism.

11A , 11B and 11C are cross-sectional views of the feeding and pushing mechanism.

FIG. 12 is a structural diagram of the first guide groove.

FIG. 13 is a structural diagram of the second pushing unit.

Figure 14 is a structural diagram of the bag opening and filling mechanism, the bag transporting mechanism, and the first beating unit.

Figure 15, Figure 16 and Figure 17 are structural diagrams of the bag opening and discharging unit.

Fig. 18 is a perspective view of a scallop.

FIG. 19 is a schematic three-dimensional structure diagram of a bag support plate.

Figure 20 is a schematic diagram of the arrangement position of the shaping mechanism.

Fig. 21 is a structural diagram of the first beating unit.

22 and 23 are structural diagrams of the shaping mechanism.

24 , 25 and 26 are structural diagrams of the lateral shaping portion.

27 and 28 are structural diagrams of the longitudinal shaping portion.

FIG. 29 is a schematic three-dimensional structure diagram of the crease assembly.

30 and 31 are structural diagrams of the sealing mechanism.

Fig. 32 is a perspective view showing the installation state of the bag press unit and the heat insulating block.

Fig. 33 is a structural diagram of a part of the sealing unit.

The meanings of the symbols in the figure are as follows:

1-Material supply mechanism 10-Total support frame

100-Material steering transmission unit 101-Main conveyor belt 102-Dial plate assembly 1021-First revolving pin

1022-Separation plate 1023-Steering dial 1024-Second rotation pin 1025-Arc groove

103-First steering drive 1031-Steering support 1032-Steering power part 104-Arc plate

110-first conveying unit 111-first conveying belt 112-first photoelectric detection assembly

113-Discharge assembly 114-Baffle 1151-First baffle 1152-Second baffle 1153-Third baffle

120-Second transfer unit 121-First material storage bin 122-Second material storage bin

123-Scraper assembly 1231-Scraper plate 1232-Scraper drive 124-Second photoelectric detection assembly

125-Feeding plate 126-Material temporary storage platform 127-Auxiliary blanking parts

130-The first material shaping unit 131-The first shaping drive 132-The first shaping moving plate

140-The first pushing unit

2-Packaging bag supply agency

210-bag compartment 2101-box panel 2102-curved frame 2103-bag block

220-First suction bag unit 2201-First suction cup 2202-First suction bag drive

2203-Suction cup connector

230-The third photoelectric detection component

3-Bag transport mechanism 300-Second conveyor belt 301-Second conveyor drive 302-Side support plate

303-partition board 304-bag bottom baffle 305-bag support board

3110-bag head 3111-bag bottom

4-Transfer pusher mechanism 410-Material receiving steering unit 4101-First guide groove 4102-Second steering drive

4103-Second channel 4014-Transition channel

420-Second pusher unit 4201-Pusher

4202-contact assembly 42021-pushing piece 42022-protrusion 421-stopper

5-Open bag filling mechanism 500-Second suction cup unit

501-Second suction cup group 5011-Suction cup connecting rod

502-Second suction cup drive 5021-Rotating disk 5022-Suction cup rotating power part

5023-First rotating shaft 5024-Second rotating shaft 5025-Bag opening guide

5026-Front end link 5027-Rear end link

504-First elastic part

510-Bag feeding unit 511-First shell 512-Second shell 5110-Detection hole

513-Rotary Drive 514-Power Rod

6-Shaping mechanism 600-First flapping unit 601- flapping cylinder 602- flapper

610-Second flapping unit

620-First bag mouth shaping unit 6210-Transverse shaping component 6211-Transverse shaping support plate

6212-Transverse shaping part 62121-First rotating rod 62122-Second rotating rod 62123-Fixing seat

62124 - Lateral Shaping Plate 62125 - Lateral Shaping Drive

6220-Vertical Shaping Kit 6221-Vertical Support Plate

62221-First support plate 62222-Second guide rod 62223-Third support plate

62224-4th guide rod

6223 - Mobile Board

6224-Longitudinal shaping drive 62241-Circular turntable 62242-Ring power component

62243-Third rotation shaft 62244-Fourth rotation shaft 62245-Bending connecting rod

6225-First Longitudinal Shaping Plate 6226-Second Longitudinal Shaping Plate

6230 - Shaped Distance Drive

6240 - Crease Assembly 6241 - Crease Drive 6242 - Crease Block

62421-Crease connection block 62422-Crease straight plate 62423-Crease inclined plate

630-plastic blowpipe

7-Sealing mechanism 710-Press bag sealing assembly 711-Insulation block 712-Sealing unit

7121-Sealing block 7122-Heating element 7123-High temperature resistant rubber sheet 7124-High temperature anti-stick tape

7125-Temperature element

713-bag-pressing unit 7131-bag-pressing transition plate set 7132-bag-pressing straight plate 7133-bag-pressing inclined plate

720-Sealing Drive 730-Sealing Fixing Plate

741-Slide bearing 742-Position adjustment plate 743-Handle 744-Position adjustment guide shaft

745-Adjusting screw

8- Finished product output mechanism 81- Discharge baffle 82- Discharge drive mechanism

9-Control mechanism 10-Support frame

Detailed ways

As shown in Figures 1-32, the entire system of the present invention includes a general support frame 10 and a material supply mechanism 1 fixed on the general support frame 10 to supply the materials to be packaged;

The packaging bag supply mechanism 2 is used to realize the supply function of the packaging bag;

The bag transport mechanism 3 moves the packaging bags in different stations;

The feeding and pushing mechanism 4 is used to transport the material dropped from the material supply mechanism and push the material into the packaging bag;

The bag opening and filling mechanism 5 is used to open the packaging bag and put in the material;

Plastic mechanism 6, plastic packaging bag mouth, prepare for sealing;

The sealing mechanism 7 is used to seal the packaging bag;

The finished product output mechanism 8 is used to output the finished product to the next process.

The control mechanism 9 acquires the signals of each sensor in the device and controls all driving operations;

After the material supply mechanism 1 and the packaging bag supply mechanism 2 supply the material and the packaging bag respectively, the material is put into the packaging bag through the bag opening and filling mechanism 5, and then the shape of the packaging bag is shaped by the shaping mechanism 6, and then the sealing mechanism is used. 7. Seal the packaging bag, and finally output it to the next process through the finished product output mechanism 8. The above-mentioned traveling path of the packaging bag is completely realized by the bag transport mechanism 3 having the inclined transport surface. In order to ensure the above-mentioned movement function, as shown in Figure 1, the entire bag transport mechanism 3 can be regarded as a road, extending along the processing direction of the packaging bag supply mechanism 2, the shaping mechanism 6, the sealing mechanism 7 and the finished product output mechanism 8, thereby It plays the function of orderly connecting and feeding materials at each process, thereby ensuring the continuity, efficiency and fast pace of the overall processing structure.

In order to further understand the specific structure of the present invention, each mechanism is described in detail below:

1. Material supply organization

As shown in FIG. 2 to FIG. 7 , the material supply mechanism 1 includes a material turning and conveying unit 100 , a first conveying unit 110 , a second conveying unit 120 , a first material shaping unit 130 , and a first pushing unit 140 . The material diverting and conveying unit 100 is disposed at the front end of the first conveying unit 110 . When the mechanism behind the device has no material demand, the material diverting and conveying unit 100 diverts and transmits the material and does not flow into the first conveying unit 110 .

As shown in FIG. 3 , the material steering and conveying unit 100 includes a main conveyor belt 101 , a paddle assembly 102 , and a first steering drive 103 that drives the steering paddle 1023 to turn. The width of the main conveyor belt 101 is greater than the width of the first conveyor belt 111 in the first conveyor unit 110 . The first steering drive 103 includes a steering support 1031 fixed on the steering baffles on both sides of the main conveyor belt 101, the main conveyor 101 is provided with steering baffles on both sides, and the steering support 1031 is provided with a steering power part 1032, the dial plate assembly 102 includes a first turning pin 1021, a dividing plate 1022, a turning dial 1023, and a second turning pin 1024. One end side of the turning dial 1023 and the dividing plate 1022 pass through the first turning pin 1021 connection, the driving end of the steering power part 1032 is connected with the second turning pin 1024, the second turning pin 1024 is arranged at the position near the middle of the steering dial 1023, and the steering support 1031 is provided with a The arc groove 1025 is guided by the second rotating pin 1024, the second rotating pin 1024 drives the steering dial 1023 to rotate with the first rotating pin 1021 as the rotation axis and the second rotating pin 1024 as the action point. The dividing plate 1022 for splitting the output end of the main conveyor belt 101 is arranged in the middle of the main conveyor belt 101 in the width direction, and the diverting plate 1023 includes two stations during the moving process. The first station is where the end of the steering plate 1023 away from the partition plate 1022 rests on the left steering baffle, so that the material enters the material recovery box and prevents the material from entering the second conveying unit and flowing into the next process of the device. In the second station, the end of the diverter plate 1023 away from the partition plate 1022 rests on the right diverter baffle plate, and the material enters the second conveying unit and blocks the material from entering the material recovery box.

In order to better guide the material, the side of the main conveyor belt 101 before the material passes through the plate assembly 102 is provided with an arc-shaped plate 104 or an inclined plate.

As shown in FIG. 4 , the first conveying unit 110 includes a first conveying belt 111 , and the side of the first conveying belt 111 is sequentially provided with a first photoelectric detection component 112 and an unloading component 113 along the moving direction of the material . When there are too many materials on the first conveyor belt 111, the first photoelectric detection component 112 includes two adjacent photoelectric sensors. When the triggering time interval of the two photoelectric sensors is lower than the set value, the first photoelectric detection component 112 The rear unloading assembly 113 starts to work, picks out the corresponding excess material on the first conveyor belt 111 from the current queue, and pushes or blows it into the material recovery box on the side from the preset blanking port on the first conveyor belt 111, so as to maintain the Spacing uniformity of items in a transport queue. In addition to the discharge components 113 on both sides of the first conveyor belt 111 , baffles are provided at other positions to effectively prevent materials from falling from the first conveyor belt 111 . The unloading assembly 113 can use a compressed air nozzle to blow the material down, or it can be arranged as a cylinder, a crank slider or even a screw slider and other similar pushable structures, as long as the material can be pushed out. . Above the first conveyor belt 111, there is a blocking member 114 for laying the upright object flat. In this solution, the blocking member 114 is supported by the blocking members on both sides. The reason why the stopper 114 is provided is to consider that during normal material transportation, the soft nut bag according to the present invention is usually fed in a state where the bag mouth faces the same side; The material may be forced to be in an upright state due to the influence of many factors, such as the vibration of the belt surface, or even the random inspection personnel take the bag temporarily and put it back at will; The stopper 114 at the height is turned back to the lying state again, so as to ensure that the material temporary storage platform at the next station can receive materials normally. In order to ensure the controllability of material transportation, the rotation speed of the main conveyor belt 101 and the first conveyor belt 111 can be adjusted.

As shown in FIG. 5 , the second conveying unit includes a material temporary storage platform, a first material buffer bin and a second material buffer bin arranged on both sides of the material temporary storage platform, a scraper component, and a second photoelectric detection component. The scraping component includes a scraping plate and a scraping drive. After the material is conveyed by the first conveyor belt 111, it enters the material temporary storage platform. The scraper drive drives the scraper to move left and right, and alternately transfers the material of the material temporary storage platform to the discharge plates located on both sides of the material temporary storage platform, and the plate drive connected with the control mechanism 9 will drive the discharge plate to open. , so that the material falls into the material buffer bin. The retractable discharge plates on the upper end faces of the first material buffer bin and the second material buffer bin and the reciprocating action of the aforementioned scraper can be realized by software control. Of course, in actual operation, they can also be arranged as appropriate. Induction devices such as sensors can also achieve the above blanking effect. The scraper includes two stations, one station is flush with the first baffle 1151 near the first material buffer bin, and the other station is flush with the second baffle near the second material buffer bin. Flush, in the process of switching back and forth between the first station and the second station, the scraper can push the material originally located on the material temporary storage platform to the feeding board arranged on the buffer bin, and then pass the The opening and closing action of the material plate makes the material fall into the first material buffer bin and the second material buffer bin under its own weight or under the action of external force. It is worth noting that: when the scraper is used for left and right reciprocating scraping, the discharge plate is always in the extended cover state or closed state; only when the shaped materials in the two buffer bins are pushed by the first pushing unit. After the first pushing unit and the first shaping moving plate are reset, the discharging plate is opened, so that the materials on the discharging plate are discharged into the corresponding buffer bins. After that, the discharging plate is closed again, and the first shaping moving plate works, so as to perform shaping operation on the materials located in the corresponding buffer bin. Only after the materials in the two buffer bins have been shaped, the first pushing unit can meet the pushing conditions. Of course, in actual operation, the first pusher unit can also be designed as a single-rod double-group pusher structure, that is, the materials in the two buffer bins can be independently shaped by two groups of pusher units that work independently, which is obviously not as efficient as the present invention. The first pushing unit of , will not be repeated here.

The height of the material temporary storage platform is not lower than the discharge plates on both sides, so that the scraper can easily scrape the material onto the discharge plates. Optimized, in order for the material to fall into the material buffer bin from the discharge plate better, a bracket is arranged on the outer side of the material buffer bin, and the auxiliary blanking part located directly above the discharge plate is fixed on the bracket. In this solution, the auxiliary blanking part is the air blowing part, which is facing the material buffer silo, which can accelerate the sinking of the material in the material buffer silo.

As shown in FIG. 6 , the first material shaping unit 130 includes a first shaping drive 131 and a first shaping moving plate 132, and the first shaping moving plate 132 is the side wall of the first material buffer bin and the second material buffer bin, The side wall is located on the side of the material in the length direction, and the first shaping drive 131 drives the corresponding side wall to move back and forth, so as to squeeze the material to make the material slender. Preferably, the first shaping moving plate 132 is arc-shaped or has a certain angle with the horizontal direction, so as to better fit the material. The first shaping moving plate 132 in the first material buffer bin and the second material buffer bin squeezes the material to make the material as thin as possible within the allowable range, so that the material entering the later process can be easily stuffed into the packaging bag.

As shown in FIG. 5 and FIG. 7 , the first pusher unit 140 is disposed in the first material buffer bin and the second material buffer bin in the direction of the end of the material, and the first pusher unit 140 pushes the material into the material buffer bin. The material at the bottom is pushed into the material receiving and turning unit 410 of the material transmission and pushing mechanism 4 .

The working process of the material supply mechanism 1 is as follows:

S11. The device is turned on, the control mechanism 9 controls the first steering drive 103 to work, so that the steering dial 1023 is located at the second station, and the material moves from the material steering conveying unit 100 to the first conveying unit 110. The first photoelectric detection component 112 detects the feeding speed. When the distance between two adjacent materials is too close, that is, the distance between adjacent materials is too close, the two photoelectric sensors in the first photoelectric detection component 112 transmit signals to the control mechanism 9, The unloading assembly 113 acts to disengage the excess material from the transport queue of the first conveyor belt 111 and move it into the material recovery box. In addition, when the distance between two adjacent materials is too close, the excess materials must be removed regardless of whether there are materials in the material buffer bin, the two discharge boards and the material temporary storage platform; When there are materials on the board and the material temporary storage platform, the first conveyor belt should stop working instantly. After the material at the material temporary storage platform is "digested", that is, after entering the next process, the first conveyor belt will re-feed the material to the material temporary storage platform. store on the platform.

S12, the control mechanism 9 obtains the signal of the first photoelectric detection component 112, that is, after detecting the incoming material from the first conveying unit 110, and when the second photoelectric detection component detects that the material falls into the material temporary storage platform, the control mechanism 9 controls The scraper is driven to make the scraper move back and forth between the first station and the second station. When the material is placed on the discharge board of the corresponding material buffer bin, the control mechanism 9 judges whether the material in the corresponding material buffer bin is discharged. After discharging, the control mechanism 9 controls the discharge plate to be located at the first station, so that the material enters the corresponding material buffer bin, and then switches to the second station.

S13. After the material enters the corresponding material storage bin, the first material shaping unit 130 shapes the material, and the control mechanism 9 determines whether the material is needed in the feeding and pushing mechanism 4. When the material is needed, the control mechanism 9 controls the first material pushing unit. 140 pushes the material into the conveying and pushing mechanism 4 .

2. Packaging bag supply agency

As shown in FIG. 8 and FIG. 9 , the packaging bag supply mechanism 2 includes a bag compartment 210 and a first suction bag unit 220 . The bag compartment 210 includes a compartment panel 2101 serving as the bottom of the bag compartment 210, and an arc-shaped frame 2102 supporting a plurality of packaging bags that can be placed simultaneously. In this solution, the bag compartment 210 and the first suction bag unit 220 are arranged opposite each other up and down. The height of one side of the arc-shaped frame 2102 is different from that of the opposite side, which is caused by the difference in the inherent structure of the packaging bag: in order to ensure the volume of the packaging bag, the bottom of the bag is usually a foldable structure, so that the material can be Automatically open the bag cavity; the foldable structure of the bottom of the bag will make the thickness of the bottom of the bag significantly thicker than that of the mouth of the bag when the bag body is in an unopened state, that is, there is a thickness difference between the bottom of the bag and the mouth of the bag. When a plurality of unopened pockets are stacked with each other in the same direction, the above thickness difference will be more obvious. When the arc-shaped frame 2102 of the present invention is used, it is obviously more beneficial to achieve the purpose of reliable accommodation of the above-mentioned packaging bags with difference in thickness. More specifically, the outer shape of the curved frame 2102 is a box-like structure with the opening facing upward, and the height of the outer box wall of the curved frame 2102 for contacting the bottom of the packaging bag is higher than that for contacting the top of the packaging bag. The height of the inner box wall; on the horizontal projection perpendicular to the long direction of the packaging bag, the arc formed by the projection of the outer box wall and the arc formed by the projection of the inner box wall form concentric circles. The packaging bag is made of soft material and is placed horizontally in the bag compartment 210. The compartment panel 2101 is provided with a bag outlet hole, and the packaging bag can pass through under the adsorption force. After the bag is sucked out from the bag outlet hole, the adjacent packaging bag is closely attached to the compartment panel 2101 under the action of the gravity of the rear packaging bag. Optimized, the bag outlet hole is located at the bottom of the bag compartment, so that the bottom of the bag compartment can form a compartment panel for bag out; It is hingedly fixed on the bin panel 2101 through a hinge shaft vertical to the bin panel panel. The bag blocking piece 2103 is used to adjust the size of the bag outlet hole, and hang the packaging bag at the bag outlet hole to prevent it from falling automatically.

The first suction bag unit 220 includes a first suction cup 2201 and a first suction bag drive 2202 . The first suction cups 2201 and the bag compartment 210 are multiple and the same in number, and the multiple first suction cups 2201 are connected to the first suction bag drive 2202 through the suction cup connecting member 2203. In this solution, there are two first suction cups 2201 .

The first suction cup 2201 is provided with a negative pressure pipe, and the negative pressure pipe is connected with the corresponding negative pressure supply part. The controlled end of whether the negative pressure supply part is turned on is connected with the control mechanism.

Optimized, in order to detect whether the bag is successfully taken, the packaging bag supply mechanism 2 further includes a third photoelectric detection component 230, and the third photoelectric detection component 230 and the first suction bag drive 2202 are respectively connected to the corresponding ports of the control mechanism. .

The bag compartment 210 is disposed on the side of the side support plate 302 of the bag transport mechanism 3 through the support portion. In this embodiment, the first suction bag units 220 are respectively disposed on the side support plates 302 on both sides of the bag transport mechanism 3, and the first suction cups 2201 pass through the corresponding side support plates 302, thereby sucking the unified packaging Both ends of the bag.

3. Bag transport mechanism

As shown in FIG. 10 , the bag transport mechanism 3 includes a second conveyor belt 300 , a second conveyor drive 301 , a side support plate 302 and a plurality of partition plates 303 , and the plurality of partition plates 303 are perpendicular to the second conveyor belt 300 in accordance with The partitions are arranged at sequential intervals and form an array with the second conveyor belt 300 . The side support plates 302 are located on both sides of the second conveyor belt 300 and are parallel to the second conveyor belt 300. The width of the partition plate 303 is smaller than the width of the second conveyor belt 300, and is disposed away from the side of the subsequent processing mechanism. The conveyor belt is close to the side of the subsequent processing mechanism. The side support plates 302 of the 10000 s press the second conveyor belt 300 , so that damaged materials will not fall under the second conveyor belt 300 . Preferably, there is a gap between the side support plate 302 at the lower side of the belt surface and the bottom baffle plate 304 for sundries to fall. The first suction cup 2201 sucks the packaging bag in the bag compartment 210 into the partition of the bag transport mechanism 3 under the action of the first suction bag drive 2202. It supports the two ends of the packaging bag, and plays the role of positioning the packaging bag in the up and down direction, so that the center of the packaging bag after filling can be consistent with the center required by the shaping mechanism 6, the sealing mechanism 7, and the bag opening mechanism 5. The second conveying drive 301 drives the second conveying belt 300 to rotate to transport the packaging bags to the next station. The bag bottom baffle 304 is vertically arranged on the side of the partition plate 303 and used to block the bottom of the packaging bag. In the figures, most of the bottom baffle 304 of the bag is hidden for the convenience of viewing other structures. As shown in FIG. 19 , a bag-holding drive for driving the bag-holding plate 305 to move up and down is disposed below the side support plate 302 , and the bag-holding plate 305 is located at the bottom 3111 of the bag. When the bag opening and filling mechanism 5 clamps the bag head 3110 of the packaging bag to a certain height, the bag holder drive drives the bag holder plate 305 to lift upward, so that the packaging bag is always parallel to the second conveyor belt 300 . In the undriven state, the pocket plate 305 is flush with the surface of the side support plate 302 .

In this way, during the bag opening process, the central axis of the packaging bag is always parallel to the second conveyor belt 300 . Since the bottom of the folded packaging bag is nearly perpendicular to the side support plate 302 during the opening process, the packaging bag is in an inclined state on the second conveyor belt 300 . With the closed-loop conveyance of the second conveyor belt 300 , the partition of the bag transport mechanism 3 is between the packaging bag supply mechanism 2 , the feeding and pushing mechanism 4 , the bag opening and filling mechanism 5 , the shaping mechanism 6 , the sealing mechanism 7 , and the finished product output mechanism 8 . Continuous cycle between, so as to achieve the effect of feeding.

Since the second conveyor belt 300 is in an inclined state, firstly, it is convenient for the flexible packaging materials to be pushed and filled, and in the inclined state, the packaging bag relies on its own gravity to make the bag bottom 3111 and the longitudinal bottom surface the same as the bag support plate 305 and the side support plate 302. contact, so that it is accurately positioned and conveyed in the partition room. Compared with other methods of conveying packaging bags, the structure is simple in structure, high in efficiency, and good in automatic alignment effect. The lateral distance between the partitions is slightly larger than the lateral width of the bags, so that the bags can be automatically aligned under the action of gravity in the inclined partitions. However, the above structure also has certain problems, that is, under the action of the bag opening and filling mechanism 5, the bag mouth of the packaging bag will passively lift up, and then the material will enter the packaging bag under the pushing action of the feeding and pushing mechanism 4. However, in actual operation, it was found that when the bag body of the packaging bag and the pushing path of the feeding and pushing mechanism 4 are not in the same plane, the bottom of the packaging bag will be bent, so that the material cannot travel directly to the end, thus affecting the feeding material status. The present invention solves the above problems by means of the bag support plate 305 by providing a reserved hole on the side support plate 302 at the bag opening and filling mechanism 5 through which the bag support plate 305 can extend. Whenever the bag opening and filling mechanism 5 opens the bag mouth of the packaging bag, the bag support plate 305 rises synchronously through the reserved hole as shown in FIG. It is ensured that the material pushing path of each transmission and pushing mechanism 4 is basically flush with the long direction of the packaging bag, which also ensures that the material can be pushed to the end, and the operation is extremely dexterous and efficient.

In addition, due to the processing technology of the bag body, the bottom edge of the bag body is usually in the shape of a hard corner after hot pressing. The above-mentioned rigid corner-shaped bottom edge of the bag will not affect the matching state of the bag body and the second conveyor belt 300 when the bag body is not opened. However, when the material is pushed into the packaging bag and shaped, the bottom of the packaging bag is pressed and stretched open, and at this time, the hard corner-shaped bottom edge of the bag body is bent down and squeezes the side support plate 302, resulting in The bag body does not exhibit the desired fit for transport. Therefore, in the present invention, by presetting a reserved gap between the bag bottom baffle 304 and the side support plate 302, once the bag bottom edge of the packaging bag filled with materials is bent down, it will naturally fall into the reserved gap inside, so as to ensure that the bottom bag side of the packaging bag filled with materials can always correctly adhere to the second conveyor belt 300, and also play the function of dropping sundries, thereby ensuring the reliability and efficiency of the overall bag transport process.

The working process of the packaging bag supply mechanism 2 and the bag transport mechanism 3 is as follows:

S21, placing the packaging bag in the bag compartment 210, the packaging bag in the arc frame 2102 due to the action of gravity, the lowermost packaging bag is made close to the compartment panel 2101;

S22, the control mechanism 9 controls the first suction bag drive 2202 to work, the first suction cup 2201 sucks the innermost packaging bag out of the hole of the warehouse panel 2101 into the corresponding partition through negative pressure; the third photoelectric detection component 230 detects whether the If the bag is successful, when the bag is successfully taken, go to step S23, if the bag is unsuccessful, the control mechanism 9 controls the partition to run to all subsequent stations, and the corresponding station does not work;

S23. When the first suction cup 2201 shrinks downward in the direction away from the bag compartment 210, when it reaches the set position, the negative pressure supply part stops supplying negative pressure, and under the action of gravity, the packaging bag falls off the first suction cup 2201 fall into the compartment;

S24, the control mechanism 9 obtains a signal for locating the photoelectric detection position, and controls the bag transport mechanism 3 to work so that the packaging bag enters the next process.

4. Transmission and push mechanism

As shown in FIGS. 11-13 , the material transmission and pushing mechanism 4 includes a material receiving and turning unit 410 and a second material pushing unit 420 .

The feeding and turning unit 410 includes a first guide groove 4101, a second turning drive 4102 that drives the first guide groove 4101 to turn, a second guide groove 4103 and a transition channel. The first guide groove 4101 plays the role of the second turning drive 4102 The lower part includes two stations. The first station is connected to the outlet of the material buffer silo, so as to catch the material pushed out by the first pusher unit 140 from the corresponding material buffer silo. The second station is the first guide slot 4101 and the The second guide groove 4103 forms an annular cavity. In this embodiment, the annular cavity is cylindrical. The rotating shaft of the first guide groove 4101 is close to the transition channel, the input end of the transition channel is close to the cavity output end, and the transition channel is used as the total output of the material transmission and push mechanism 4 to facilitate connection with the next process.

The first guide groove 4101 obtains the material at the front end, and moves from the first station to the second station, so that the material may automatically fall out under the action of gravity; on the one hand, the second guide groove 4103 can prevent the material from entering the first guide. The groove 4101 flies out during the rotation; on the other hand, the second guide groove 4103 can cooperate with the first guide groove 4101 to form an annular cavity, so that the material becomes a shape suitable for the cavity, and the annular cavity It can also provide a guide channel for pushing material.

The second pushing unit 420 includes a push rod 4201, a contact assembly 4202 fixed at the end of the push rod 4201, and a push rod drive. The push rod 4201 moves back and forth in the length direction of the second guide groove 4103. Optimized, in order to reduce the damage caused by the large impact of the material and effectively improve the working efficiency of the material transfer and push, under the action of the push rod, the speed of the push rod 4201 from the start of the extension to the return process is divided into the average speed of the beginning and the end. , the average speed in the middle section, the average speed at the end, and the average speed in return, and the average speed in the return ≥ the average speed at the beginning end ≥ the average speed in the middle section > the average speed at the end still, so that the material will not be affected by the speed when it just contacts the second pushing unit 420. Excessive size will cause deformation or damage to the material. Especially for flexible packaging materials, the average speed at the beginning is the high-speed operation before the material touches the second pushing unit 420, the average speed in the middle is the anti-shattering working mode after the material contacts the second pushing unit 420, and the end is stationary to maintain the average speed It can ensure that the material is fully compacted in the packaging bag, and the average returning speed is that the second pushing unit 420 returns at a high speed after the pushing is completed to improve work efficiency.

In order to determine where to turn on different speeds, three induction switches are sequentially arranged along the length direction of the push rod 4201 on the general support frame 10 on the side of the push rod 4201 . When the push rod 4201 performs a designated linear motion, the inductive switches will be triggered in turn, so that the push rod 4201 is controlled to jump from the previous average speed to the next average speed. During the return process of the push rod 4201, until it touches the first induction switch in the return process, the return speed is maintained until it reaches the initial state. Optimized, the driving device of the second pushing unit 420 is provided with a pushing resistance threshold. When the pushing resistance of the driving device is greater than the threshold, it means that the material is stuck in the cavity, and the control mechanism 9 obtains that the resistance of the driving device is greater than After the signal corresponding to the threshold value (for example, the power is greater than the threshold value), the control mechanism 9 activates the alarm device and stops the work of all mechanisms to protect the stuck material, avoid excessive extrusion of the material and damage to the mechanical structure.

The contact component 4202 in the second pushing unit 420 includes a pushing piece 42021 and a protrusion 42022. The bottom of the pushing piece 42021 is fixed on the push rod 4201 through a connecting plate. In the above solution, the pushing piece 42021 as a whole presents a wide slot shape with the size gradually increasing from the bottom of the groove to the notch, which facilitates the fixing of the pushing piece 42021 and the protrusion 42022; It is fixed on the bottom of the inner concave arc surface of the pusher 42021 by means of bonding or even welding. In a preferred solution, the protrusion 42022 should be fixed with the push rod 4201 through threaded engagement, so that the protrusion 42022 can be replaced in time when it wears out. When the material is a soft bag, the wide slot-shaped pusher 42021 can rely on its arc-shaped contact surface to stick to the surface of the material. Thus, the reshaped material can be prevented from being deformed again. At the same time, on the one hand, the protrusions 42022 can prevent the contact surface of the material and the pushing piece 42021 from forming a vacuum area when the push rod 4201 is retracted, causing the material to be adsorbed on the pushing piece 42021; on the other hand, When the material is a flexible packaging bag, the protrusion 42022 pushes the top of the air-containing flexible packaging, so that the top of the material can be folded into the packaging bag. The volume of the whole material in the packaging bag is smaller, which is more conducive to the subsequent sealing operation of the packaging bag. The entire contact assembly 4202 is connected to the push rod 4201 through a connecting plate, so that the contact assembly 4202 can be replaced according to different materials, so as to ensure its flexibility in use and wider application.

When the detection part in the bag opening and filling mechanism detects that the packaging bag is not opened, the material can continue to enter the following process, and the material can also be prevented from continuing to fall by the blocking part 421 arranged on the side of the second guide groove.

In this embodiment, the conveying and pushing mechanism 4 includes two groups, which are respectively used for conveying and pushing the materials in the first material buffer bin 121 and the second material buffer bin 122 .

The process of the feeding and pushing mechanism 4 is as follows:

S41, the control mechanism 9 controls the first guide groove 4101 to be located at the first station, the material is discharged from the material storage bin, and then controls the second steering drive 4102 to rotate to the second station;

S42. The push rod 4201 of the second pushing unit 420 moves toward the material, pushes the material out of the cavity formed by the first guide groove 4101 and the second guide groove 4103, and falls into the packaging bag opened by the bag opening and filling mechanism 5 Inside.

5. Open bag filling mechanism

As shown in FIGS. 14-18 , the bag opening mechanism includes a second suction cup unit 500 and a bag opening and discharging unit.

The second suction cup unit 500 includes a second suction cup group 501 and a second suction cup drive 502. The second suction cup group 501 includes two suction cups, which are respectively located at the openings on both sides of the packaging bag. The second suction cup drive 502 drives the first suction cup. The two suction cups of the second suction cup group 501 suck both sides of the packaging bag at the same time, and then move in opposite directions, thereby opening the packaging bag.

The bag opening and discharging unit 510 includes a coverable first shell-shaped body 511 and a second shell-shaped body 512 , a bag-opening and discharging support plate, and a rotary drive 513 . When the first shell-shaped body 511 and the second shell-shaped body 512 are in the initial state, it is the combined station, and the first shell-shaped body 511 and the second shell-shaped body 512 are placed on both sides of the bag mouth of the packaging bag; When the first scallop 511 and the second scallop 512 are in the working state, that is, the start position, the first scallop 511 and the second scallop 512 are hinged toward each other until the first scallop 512 511 and the tip of the second shell 512 are inserted into the opening of the packaging bag that has been initially pulled open. At this time, the gap formed between the first shell 511 and the second shell 512 constitutes a blanking material available for blanking. gap.

As shown in FIG. 18 , the first shell-shaped body 511 and the second shell-shaped body 512 each include an arc-shaped tongue. When the first shell-shaped body 511 and the second shell-shaped body 512 are in the working state, the two The arc surfaces of the tongues of the shell-shaped body are opposite to each other to form the blanking gap; the arc back of the tongue is arranged with a mounting plate parallel to the axis of the tongue, and the mounting plate is provided with hinge holes and axes parallel to each other. The force hole is arranged at the position between the hinge hole and the tongue, and is hinged on the open bag unloading support plate through the hinge hole, and the rotary drive 513 is connected with the force hole through the pull rod, thereby driving the first shell The body 511 and the second shell-shaped body 512 are rotated around the hinge hole, so that the two are replaced at the opening position and the closing position.

The rotary drive 513 includes a shell power component and a power rod 514. The power rod 514 is hinged to the force hole, and each shell power component is connected to the first shell 511 and the second shell. Two power rods 514 to which the body 512 is hinged.

The second suction cup unit 500 includes a front end link and a rear end link located on both sides of the packaging bag and used for fixing the suction cup. The bag opening support plate is provided with a bag opening guide rail 5025, and the guiding direction of the bag opening guide rail 5025 is perpendicular to the bag surface of the bag. The bag opening guide 5025 moves back and forth. The second suction cup drive 502 includes a rotating disk 5021, a suction cup rotating power component 5022 for driving the rotating disk 5021 to rotate, a first rotating shaft 5023 and a second rotating shaft 5024 fixed on the rotating periphery, the first rotating shaft 5023 and the second rotating shaft 5024. The connecting line of the rotating shaft 5024 passes through the center of the rotating disk 5021, and the first rotating shaft 5023 and the second rotating shaft 5024 are respectively connected by a rotating shaft connecting rod, and the rotating shaft connecting rod is connected with the corresponding front end link 5026 and rear end link 5027.

When the first shell-shaped body 511 and the second shell-shaped body 512 are in the starting position, the bottom outer sides of the first shell-shaped body 511 and the second shell-shaped body 512 are located in the packaging bag. In order to prevent the second suction cup unit 500 from being damaged when the second suction cup unit 500 is pressed against the packaging bag with the corresponding shell, a first elastic member 504 is fixed on the connecting rod at the bag opening support plate, and the first elastic member 504 The suction cups of the second suction cup unit 500 are closer to the corresponding shell bodies. The function of the first elastic member 504 is that after the shell-shaped body presses the packaging bag, it can cooperate with the shell-shaped body to hold the front side or rear side pocket of the packaging bag in coordination, so as to prevent the packaging bag from slipping off and protect the packaging bag when the material is filled. function. When the shell-shaped body is in the open position, the outer wall of the shell-shaped body presses the packaging bag on the first elastic member 504 . The second suction cup unit 500 is located above the first elastic member 504 on the same side. Preferably, in order to detect whether the packaging bag is opened, the first shell-shaped body 511 and the second shell-shaped body 512 are provided with a detection hole 5110 on the contact surface with the packaging bag, and the ventilation pipeline in the second suction cup unit 500 is provided. There are negative pressure detection parts. As long as one side of the negative pressure detection parts corresponding to the suction cup units on the left and right sides of the packaging bag fails to reach the set value, it means that the packaging bag is not opened. The signal that the packaging bag corresponding to the partition is not opened is sent to the subsequent control mechanism 9, then the transmission and pushing mechanism 4, the shaping mechanism 6, and the sealing mechanism 7 all do not operate at the corresponding partition, and the packaging of the partition will be Bags and materials are recycled to the material recovery area.

The working steps of the bag opening and filling mechanism 5:

S51. When the second suction cup unit 500 moves toward the middle, the bag mouth of the packaging bag moves upward, and at the same time, the bag holding unit supports the bag tail and moves upward synchronously, and ensures that the packaging bag is always flush with the second conveyor belt 300; waiting for the second suction cup unit After the two opposite suction cups in 500 completely fit the corresponding surfaces of the packaging bag, the two suction cups in the second suction cup unit 500 move in opposite directions to suck open the packaging bag; when the two suction cups reach the set distance, The control mechanism 9 controls the shell body in the bag opening and discharging unit to move from the closing position to the opening position;

S52, the two suction cups continue to move in the opposite direction until in place, and then each shell-shaped body starts to move to the starting position; when the shell-shaped body is in the starting position, on the one hand, the shell-shaped body presses the mouth of the packaging bag on the first elastic member 504 , thereby fixing the mouth of the packaging bag; on the other hand, the detection hole 5110 of the shell body is just located on the opposite side of the corresponding suction cup, that is, the detection hole 5110 and the suction surface of the suction cup are just separated by the surface of the packaging bag;

S53. The control mechanism 9 obtains the negative pressure value of the suction cup through the negative pressure detection components on both sides. As long as the negative pressure value on one side does not reach the set value, it means that the opening of one side of the packaging bag has not been opened, and the control mechanism 9 controls at this value. When the partition moves to the shaping mechanism 6 and the sealing mechanism 7, the shaping mechanism 6 and the sealing mechanism do not work, and the push rod 4201 can also be controlled to not work; if the negative pressure values on both sides reach the setting, then enter step S54;

S54, the control mechanism 9 controls the push rod 4201 in the material transmission and push mechanism 4 to work, so that the material enters the packaging bag through the blanking gap formed by the two groups of shell bodies; then the push rod 4201 returns to leave the material in the packaging bag bag cavity to complete the bagging process.

When the push rod 4201 returns, the actual two groups of shell-shaped bodies have begun to gradually reset, that is, from the starting position to the closing position; at this time, the clamping state between the corresponding shell-shaped body and the first elastic member 504 disappears, and the packaging bag Return to the unconstrained state, therefore, under the action of the friction force of the push rod 4201, the packaging bag containing the material will actually be driven to move upward. At this time, it is necessary to rely on the subsequent first beating unit 600 to perform the functions of exhausting, preliminarily shaping, and pressing out the bag to prevent the finished bag from being lifted up by the push rod 4201 .

6. Plastic body

As shown in FIGS. 14 and 20-29 , the shaping mechanism 6 includes a first flapping unit 600 , a second flapping unit 610 , and a first pocket shaping unit 620 .

As shown in FIG. 14 , FIG. 20 and FIG. 21 , the first beating unit 600 is disposed at the bag opening and discharging unit in the bag opening mechanism. The first beating unit 600 is provided with a beating cylinder 601 and a beating plate 602 fixed on the driving end of the cylinder. The clapper 602 slaps the bulged packaging bag filled with materials, on the one hand, it has a shaping function, so as to ensure the aesthetics of the finished packaging bag with materials; Press back the belt surface of the conveyor belt to ensure the positioning effect of the packaging bag relative to the partition.

The second flapping unit 610 has the same structure as the first flapping unit 600 , and is disposed at the front end of the first pocket opening shaping unit 620 .

The first flapping unit 600 and the second flapping unit 610 may both be provided, or one may be selected.

The first pocket shaping unit 620 includes a lateral shaping component 6210, a longitudinal shaping component 6220, a shaping mounting plate for fixing the lateral shaping component 6210 and the longitudinal shaping component 6220, and a shaping distance drive 6230 for driving the shaping mounting plate to adjust the distance from the pocket opening. , Crease assembly 6240.

As shown in FIGS. 24-26 , the lateral shaping assembly 6210 includes a lateral shaping support plate 6211, a lateral shaping portion 6212 on the lateral shaping support plate 6211 that are mirror-symmetrical on the left and right, and a lateral shaping drive 62125. The lateral shaping portion 6212 is on the right The side includes a first rotating rod 62121, a second rotating rod 62122, a fixing seat 62123 for a lateral shaping plate 62124, and a lateral shaping plate 62124. The first rotating rod 62121 includes three rotating shafts along the length direction, the rotating shaft at the upper end is connected with the lateral shaping drive 62125 , and the rotating shaft at the middle and upper part is rotatably connected with the lateral shaping support plate 6211 . In the above solution, the fixed seat 62123 is a "7"-shaped connecting piece, and the first rotating rod 62121 is hinged at the corner of the "7"-shaped connecting piece. The second rotating rod 62122 includes two rotating shafts, the rotating shaft at the upper end is rotatably connected with the lateral shaping support plate 6211, and the rotating shaft at the lower end is hinged with the lateral end of the "7"-shaped connecting piece. The transverse shaping plate 62124 is fixed on the vertical end of the "7"-shaped connecting piece. Specifically, the mirror-symmetrical lateral shaping portion 6212 is under the action of the lateral shaping drive 62125, so that a plane is formed by the horizontal lateral portions of the first rotating rod 62121, the second rotating rod 62122, the lateral shaping support plate 6211, and the fixing seat 62123 The four-bar linkage mechanism enables the symmetrical two groups of transverse shaping plates 62124 to move back and forth in parallel in the direction of approaching and moving away under the condition that they are always vertically downward. Because the lateral shaping drive 62125 is a floating structure, that is, it is hinged with the two sets of first rotating rods 62121 only at both ends, and has no other fixed structure; Feedback to the resistance of the lateral shaping plate 62124, the lateral shaping drive 62125 will produce an adaptive left and right offset, so as to have an automatic correction function for the size error of the packaging bag, the shape error of the packaging bag after filling, and the position error between the partitions, etc. , to ensure optimal shaping results. The vertical part of the fixing seat 62123 is provided with a plurality of mounting holes along the length direction, and the lateral shaping plate 62124 is correspondingly provided with waist-shaped holes, which can be adjusted or replaced according to the requirements of the shaping size. The height on the font connector is adjustable to suit different bags. Since two sets of lateral shaping components are arranged on the lateral shaping support plate 6211, the function of shaping two packaging bags at the same time can be realized, which significantly improves the actual shaping efficiency.

As shown in Figures 26-27, the longitudinal shaping assembly 6220 includes a vertical support plate 6221, a rectangular moving part, a plate body moving part, and a longitudinal shaping drive 6224. The rectangular moving part includes a rectangular frame, and the rectangular frame includes a mutual Vertical first support plate 62221 and second guide rod 62222, third support plate 62223 parallel to the first support plate 62221 and perpendicular to the second guide rod 62222, parallel to the second guide rod 62222 and third support plate 62223 A vertical fourth guide rod 62224, a first longitudinal shaping plate 6225 is fixed on the first support plate 62221. The moving part of the plate body includes a moving plate 6223 which is sleeved on the second guide rod 62222 and moves back and forth. 6226. The longitudinal shaping drive 6224 is arranged on the vertical support plate 6221 and is respectively connected with the third support plate 62223 and the moving plate 6223, and the longitudinal shaping drive 6224 drives the third support plate 62223 and the moving plate 6223 to move toward and away from each other, thereby The opening and closing functions of the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 in the packaging bag are realized. In this solution, the longitudinal shaping drive 6224 is an annular steering drive, and the annular steering drive rotates back and forth to realize the synchronous movement toward and away from the third support plate 62223 and the moving plate 6223 . The principle of the annular steering drive is the same as that of the second suction cup drive 502 . Specifically: the annular steering drive includes a circular turntable, a ring-shaped power component that drives the circular turntable to rotate, a third rotation shaft and a fourth rotation shaft fixed on the periphery of the circular turntable, and the third rotation shaft and the fourth rotation shaft The axis connecting line passes through the center of the circular turntable, and the third rotating shaft and the fourth rotating shaft are respectively connected by connecting rods, and the connecting rods are connected with the corresponding third supporting plate 62223 and moving plate 6223 . In order to shape the two packaging bags at the same time, corresponding first longitudinal shaping plates 6225 and second longitudinal shaping plates 6226 are respectively provided on both sides of the first support plate 62221 and the moving plate 6223, and the two ends of the moving plate 6223 are respectively sleeved on the first longitudinal shaping plate 6225. Two guide rods 62222 and a fourth guide rod 62224 parallel to the second guide rod 62222. In other words: take Fig. 28 as an example, in actual work, the longitudinal shaping drive 6224 performs a rotating motion, and the third support plate 62223 and the moving plate 6223 can be pushed through each transmission shaft; 28, then the first support plate 62221 is moved upward through the second guide rod 62222 and the fourth guide rod 62224; The guide rod 62224 produces a downward guide sliding action. In this way, the moving plate 6223 fixed with the second longitudinal shaping plate 6226 moves downward, and the first supporting plate 62221 fixed with the first longitudinal shaping plate 6225 moves upward, so that the corresponding second longitudinal shaping plate 6226 and the first supporting plate 6222 can move upward. A longitudinal shaping plate 6225 produces synchronized opposing and disengaging motions. When the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 are used to protrude into the inside of the bag opening on the front and rear sides of the packaging bag, the separation action of the two can open the bag opening, which is convenient for the lateral shaping plate 62124 to be removed from the packaging bag. The left and right sides, that is, the narrow side, move toward each other to tuck the bag side of the packaging bag; and the similar action of the two is to release the bag mouth and reset it to ensure that the current packaging bag can move normally to the subsequent process.

When the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 are used as a set of shaping plate sets, in this solution, two sets of shaping plate sets are arranged on the rectangular frame, so that one set of devices can simultaneously carry out two packaging bags. Shape up. The longitudinal shaping board is equipped with a shaping blowing pipe 630. Before the longitudinal shaping board is inserted into the packaging bag, blow air into the packaging bag to fully open the packaging bag. Replace if different.

The movement directions of the shaping distance drive 6230 , the lateral shaping drive 62125 , and the longitudinal shaping drive 6224 are perpendicular to each other, forming a three-dimensional movement.

As shown in FIGS. 22 and 29 , the crease assembly 6240 includes a crease driver 6241 , and crease blocks 6242 respectively located on the front side and the back side of the packaging bag, that is, on the two long sides. The adjacent surfaces of the two sets of crease blocks 6242 are provided with second elastic components, so as to improve the crease effect. When the aforementioned lateral shaping assembly 6210 and longitudinal shaping assembly 6220 are in place, the two sets of creasing blocks 6242 move towards each other under the action of the crease driving 6241 to obliquely clamp the front and rear sides of the middle of the packaging bag, and then laterally The shaping component 6210 and the longitudinal shaping component 6220 are pulled away, the mouth of the packaging bag is shaped, and the curved and smooth shoulder of the bag is exposed at the same time. The crease block 6242 includes a crease connecting block, a crease straight plate fixed on the crease connecting block, and a crease inclined plate fixed at the lower end of the crease straight plate. When the crease straight plate acts on the packaging bag to create a crease, The crease inclined plate is obliquely attached to the bag surface of the packaging bag to increase the contact surface with the packaging bag, thereby optimizing the crease effect. Of course, the position of the crease component can be adjusted adaptively according to the requirements of the packaging bag, that is, the height of the crease can be adjusted to meet the processing requirements of different packaging bags.

The working process of the shaping mechanism 6 is as follows:

S61, the control mechanism 9 controls the first beating unit 600 to work, and performs the first shaping on the packaging bag just put into the material;

S62, the control mechanism 9 controls the second beating unit 610 to work, and performs the second shaping on the packaging bag just put into the material;

S63, the control mechanism 9 controls the shaping distance drive 6230, so that the shaping plates in the lateral shaping components 6210 and the longitudinal shaping components 6220 are located at the corresponding positions of the packaging bags to be shaped; Both the longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 extend into the packaging bag to be shaped, and while the shaping distance drive 6230 is working, the shaping air blowing pipe 630 on the longitudinal shaping plate blows air into the packaging bag, so that the packaging bag is fully Open, at this time the transverse shaping plate 62124 is in the maximum opening state, and the opening distance of the longitudinal shaping plate is smaller than the opening size of the packaging bag;

S64. The control mechanism 9 controls the lateral shaping drive 62125 in the lateral shaping assembly 6210 to work, so that the two sets of lateral shaping plates 62124 move towards each other and synchronously squeeze the left and right sides of the packaging bag inward; during this process, the control mechanism 9 delays The longitudinal shaping drive 6224 in the longitudinal shaping assembly 6220 is controlled to work, so that the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 move toward each other; that is, when the two sets of transverse shaping plates 62124 move toward each other, the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 then move toward each other. In the top view of the bag mouth, the above-mentioned components work together to change the bag mouth from the original wide-mouthed square cross-section to the flat double "M"-shaped cross-section. ;

S65. The control mechanism 9 controls the crease assembly 6240 to work, the crease assembly 6240 presses the packaging bag, and while the crease assembly 6240 presses the opening of the packaging bag, the shaping distance drive 6230 removes the longitudinal shaping plate and the lateral shaping plate 62124 from the packaging bag unplug.

7. Sealing mechanism

As shown in FIGS. 30-32 , the sealing mechanism 7 includes a bag pressing and sealing assembly 710 located on both sides of the packaging bag, a sealing drive 720 and a sealing fixing plate 730 supporting the sealing drive 720 . The bag pressing and sealing assembly 710 includes a heat insulating block 711 fixed on the driving end of the sealing drive 720 , a sealing unit 712 and a bag pressing unit 713 fixed on the heat insulating block 711 up and down. The sealing unit 712 includes a sealing block 7121 , a heating element 7122 arranged in the sealing block 7121 , and a high temperature resistant rubber plate 7123 fixed on the sealing surface of the sealing block 7121 . In addition, as shown in FIG. 33 , the sealing mechanism also includes a high-temperature anti-adhesive tape 7124. The high-temperature anti-adhesive tape 7124 covers the outside of the high-temperature resistant rubber sheet 7123. On the other hand, it can also avoid the bonding and scalding of the packaging bag caused by direct contact with the sealing block during the heat sealing process of the packaging bag. It is worth noting that in the entire length direction of the sealing block 7121, the high temperature resistant rubber sheet 7123 is higher than the sealing plane of the sealing block 7121. Because the high temperature resistant rubber sheet 7123 itself is compressible, under the action of sealing pressure, it It can be automatically fitted according to the thickness of different areas of the bag. Meanwhile, in order to control the temperature of the sealing block 7121, the sealing block 7121 is also provided with a temperature measuring element 7125, so as to adjust the working power of the heating element 7122.

The bag pressing unit 713 includes a bag pressing transition plate group 7131, a bag pressing straight plate 7132, and a bag pressing inclined plate 7133. One end of the bag pressing transition plate group 7131 is fixed on the heat insulation block 711, and the other end is connected to the pressing plate straight plate, so The pressing plate inclined plate is arranged below the bag pressing straight plate 7132, and is close to the outer side wall of the packaging bag after pressing the bag. The length of the bag pressing transition plate group 7131 is adjustable, that is, the distance between the bag pressing straight plate 7132 and the inclined plate and the heat insulation block 711 is adjustable, so that the bag pressing straight plate 7132 and the bag pressing inclined plate 7133 are suitable for different In the packaging bag where the material is placed, the bag pressing unit 713 is used to realize the exhaust air before sealing and to ensure that the sealing is flat and that the front and rear of the bag are not properly positioned. The bag pressing unit is replaceable, so as to be suitable for use in packaging bags containing different material quantities.

In order to adapt to different packaging bags and different sealing heights, the sealing mechanism 7 further includes a sealing position adjustment assembly for adjusting the position of the sealing fixing plate 730 , and the sealing position adjustment assembly includes a position adjustment plate 742 , which is adjusted by the position The guide shaft 744 is slidably fitted at the sliding bearing 741 on the overall support frame 10 , and the top end of the position adjustment guide shaft 744 is then fixed on the sealing fixing plate 730 . At the same time, the adjusting screw 745 is rotatably fitted on the position adjusting plate 742, and the end of the adjusting screw 745 located outside the position adjusting plate 742 constitutes an operation end and is arranged with a handle 743 for easy operation, and the adjusting screw 745 is located on the position adjusting plate 742. One end of the inner side extends axially and forms a threaded fit with the overall support frame 10 . In this way, whenever the handle 743 is rotated, the adjusting screw 745 produces a screw-sliding motion relative to the overall support frame 10 , thereby causing the position adjustment plate 742 to move toward and away from the overall support frame. The action of the position adjusting plate 742 can drive the sealing fixing plate 730 to produce a lifting action, and then complete the online adjustment function of the entire sealing mechanism 7 .

The working process of the sealing mechanism 7 is as follows:

S71. Control the position of the bag-pressing and sealing assembly 710 by adjusting the handle 743; the control mechanism 9 controls the heating element 7122 to work, and maintains the temperature at different temperatures according to the properties of different packaging bags according to the working time and power of the heating element 7122 of the temperature measuring element 7125 At the same time, the control mechanism 9 controls the first flapping unit 600 located at the sealing mechanism 7 to work, and performs flapping and shaping on the packaging bag to ensure that the part to be sealed of the packaging bag is in the positive position, which is convenient for subsequent sealing operations;

S72. After the control mechanism 9 obtains the packaging bag to be sealed and reaches between the two sealing blocks 7121, the control mechanism 9 controls the sealing drive 720 to work. Under the action of the sealing drive 720, each heat insulating block 711 and the sealing unit 712 move in the same direction Thereby, the sealing operation is realized, and at the same time, the two groups of cooperating bag pressing units 713 perform synchronous opposite actions to play the functions of beating and shaping.

After the tap-shaping and subsequent heat-sealing operations are completed, the sealed bags enter the finished product output mechanism.

8. Finished product output mechanism

As shown in FIG. 10 , the finished product output mechanism 8 includes a discharging baffle 81 and a discharging driving mechanism 82 that drives the discharging baffle 81 to move up and down. The discharging baffle 81 is located on the lower side of the inclined second conveyor belt 300 , and is located below the side baffle in this solution. Non-finished products and finished products are detected according to the front-end signal of whether the corresponding packaging bag is opened, and the control mechanism 9 controls the discharging drive mechanism 82 to drive the discharging baffle 81 to move up and down. One slides down from the partition through the top of the discharging baffle 81 , and when the discharging baffle 81 moves upward, the other is output from the end of the second rotating conveyor belt 300 . Here, you can choose the whereabouts of finished products, or you can choose the whereabouts of non-finished products, that is, you only need to output finished products and non-finished products through different channels. In this solution, the finished product falls through the discharge baffle 81 , and the unfilled material packaging bag is output along the end of the second conveyor belt 300 .

The above mechanisms may work independently or in combination as required, and all belong to the technical solutions described in this application.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (9)

1. The utility model provides an open bag filling mechanism which characterized in that: comprises a second sucking disc unit (500) for preliminarily pulling two sides of the mouth of the packaging bag open and a bag opening and emptying unit (510) for completely opening the mouth of the packaging bag; the two groups of second sucker units (500) are respectively arranged at two sides of the mouth of the packaging bag, and each group of second sucker units (500) comprises a second sucker group (501) and a second sucker driver (502) for driving the suckers at the second sucker group (501) to move forward and away from each other; the bag opening and discharging unit (510) comprises a first shell body (511) and a second shell body (512), and the first shell body (511) and the second shell body (512) have the following two working states: when the first shell body (511) and the second shell body (512) are in the initial state, the first shell body (511) and the second shell body (512) are respectively arranged at two sides of the opening of the packaging bag; when the first shell body (511) and the second shell body (512) are in a working state, the first shell body (511) and the second shell body (512) are hinged in an opposite direction until the tips of the first shell body (511) and the second shell body (512) are inserted into the openings of the packaging bags which are initially pulled open, and at the moment, a gap formed between the first shell body (511) and the second shell body (512) forms a blanking gap for blanking.

2. The bag opening and filling mechanism according to claim 1, wherein the first shell (511) and the second shell (512) each comprise a shifting tongue with an arc-shaped appearance, and when the first shell (511) and the second shell (512) are in a working state, the arc surfaces of the shifting tongues of the two shells are opposite to each other so as to enclose the blanking gap; the arc back of the poking tongue is parallel to the axis of the poking tongue and is provided with a mounting plate, a hinge hole and an acting force hole are arranged on the mounting plate, the axes of the hinge hole and the acting force hole are parallel to each other, and the acting force hole is arranged at the position between the hinge hole and the poking tongue.

3. The bag opening and filling mechanism according to claim 2, further comprising a rotary drive (513) forming a power source of the corresponding scallop, wherein the rotary drive (513) is a cylinder, and a piston rod end of the rotary drive (513) is connected with the force hole through a power rod (514); hinge axes at two ends of the power rod (514) are parallel to the hinge hole axes.

4. A bag opening and filling mechanism according to claim 1, further comprising a first elastic member (504) for engaging the first shell (511) with the second shell (512) to clamp the mouth of the corresponding side of the packaging bag.

5. The bag opening and filling mechanism according to claim 1, wherein the second sucker unit (500) further comprises a sucker link (5011) for fixing the sucker on the same side, a front end link (5026) and a rear end link (5027) which are located on two sides of the bag and are used for connecting the corresponding sucker link (5011), the sucker link (5011) moves back and forth on a bag opening guide rail (5025) arranged on the bag opening support plate, the direction of the bag opening guide rail (5025) is perpendicular to the direction of the bag surface of the bag, and the front end link (5026) and the rear end link (5027) move back and forth on the corresponding bag opening guide rail (5025) under the action of the second sucker driver (502).

6. The bag opening and filling mechanism according to claim 5, wherein the second sucker driver (502) comprises a rotating disk (5021), a sucker rotating power component (5022) for driving the rotating disk (5021) to rotate, a first rotating shaft (5023) and a second rotating shaft (5024) connected with the periphery of the rotating disk (5021), the first rotating shaft (5023) and the second rotating shaft (5024) are connected through the circle center of the rotating disk (5021), and the first rotating shaft (5023) and the second rotating shaft (5024) are respectively connected with a front end connecting rod (5026) and a rear end connecting rod (5027) through connecting rod rotating shafts (5025).

7. The bag opening and filling mechanism according to claim 3, wherein the first shell body (511) and the second shell body (512) are provided with detection holes (5110) on the contact surfaces with the packaging bag, and the air pipe in the second suction cup unit (500) is provided with a negative pressure detection part.

8. The bag opening and filling mechanism according to claim 1, wherein two suction cups are provided on the two opposite suction cup connecting rods (5011) at opposite positions, respectively.

9. Use of a bag opening filling mechanism according to any of claims 1-8, characterized in that it comprises the following steps:

s51, when the second sucking disc unit (500) is closed towards the middle, the packaging bag moves upwards, and the bag supporting unit at the bottom of the packaging bag drives the bottom of the packaging bag to move upwards simultaneously; after the two suction discs in the second suction disc unit (500) are completely attached to the corresponding surfaces of the packaging bag, the two suction discs in the second suction disc unit (500) move in opposite directions to suck the packaging bag open, and when the two suction discs reach a set distance, the control mechanism (9) controls the shell-shaped bodies in the bag opening and discharging unit (510) to move from a closing position to an opening position;

s52, the two suckers continue to move reversely until the first elastic part (504) and the corresponding shell-shaped body press the packaging bag, and after the shell-shaped body is at the opening position, the detection hole (5110) and the suction surface of the corresponding sucker are just separated by the bag surface of the packaging bag;

s53, the control mechanism (9) obtains the negative pressure value of the sucker through the negative pressure detection parts on the two sides, if the negative pressure value on one side of the packaging bag does not reach the set value, the control mechanism (9) controls the corresponding mechanism not to work, otherwise, the step S54 is executed;

s54, the control mechanism (9) controls the material to enter the opened packaging bag through a blanking gap formed between the first shell body (511) and the second shell body (512) of the opening station.

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