CN216827303U - Weighing separator - Google Patents

Abstract

The utility model discloses a weighing and sorting machine. A material box mechanism is arranged on a conveying mechanism. A rejecting mechanism, a counter and a counter reset device are all arranged on the side of the material box mechanism. The righting mechanism is used for righting the material box of the material box mechanism. , the weighing mechanism is located on the outside of the conveying mechanism, and the weighing and feeding mechanism is located above the weighing mechanism. The weighing mechanism includes a weighing sensor, a weighing tray and an air blowing component. , the weighing tray is set on the weighing sensor and above the material box of the material box mechanism, and the blowing component is set on the outside of the weighing tray and is used to blow the material on the weighing tray into the material box. The control mechanism is set On one side of the rack body, it is respectively electrically connected with the conveying mechanism, the rejecting mechanism, the counter, the counter resetter, the weighing mechanism and the weighing and feeding mechanism. Beneficial effects: static weighing, small weighing error, direct weighing of materials, and high weighing accuracy.

Description

A weighing sorter

technical field

The utility model relates to the technical field of weighing and sorting, in particular to a weighing sorting machine.

Background technique

Sorting products of different weight levels according to different weight ranges is an important grading method in product production. At present, most of the weighing and sorting machines adopt the method of dynamic weighing. For example, the utility model patent CN208879111U discloses a material box type weighing and sorting machine. The material box is moved above the load cell, and the load cell dynamically weighs each The total weight of the material box and the material on the material box realizes the weighing of the material by the weighing classifier. This dynamic weighing method realizes the continuous weighing of materials, but due to the continuous movement of the material box during the weighing process, the weighing fluctuation is large, resulting in a large weighing error, and the dynamic weighing of the material box and the material box is large. When converting the total weight of the material, the weight of the material box needs to be subtracted. The wear of the material box or the contamination of impurities will affect the weighing accuracy, resulting in inaccurate weighing.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a weighing sorter with static weighing, small weighing error, direct weighing of materials, and high weighing accuracy.

The purpose of the utility model is achieved through the following technical measures: a weighing and sorting machine, including a frame body, a control mechanism, and a conveying mechanism, a weighing mechanism, a weighing and feeding mechanism, and a righting mechanism that are all arranged on the frame body. , Rejecting mechanism, counter and counting reset device, the conveying mechanism is provided with a material box mechanism, the rejecting mechanism, counter and counting reset device are all arranged on the side of the material box mechanism, and the centralizing mechanism is used for centralizing the material box mechanism. The weighing mechanism is set on the outside of the conveying mechanism, the weighing feeding mechanism is set above the weighing mechanism, and the weighing mechanism includes a weighing sensor, a weighing tray and an air blowing assembly, The weighing sensor is arranged on the outer side of the conveying mechanism, the weighing material tray is arranged on the weighing sensor and is located above the material box of the material box mechanism, and the air blowing component is arranged on the outer side of the weighing material tray and is used to The material on the weighing tray is blown into the feeding box, and the control mechanism is arranged on one side of the frame body and is respectively electrically connected with the conveying mechanism, the rejecting mechanism, the counter, the counter resetter, the weighing mechanism and the weighing and feeding mechanism.

Further, there are a plurality of the material box mechanisms, a plurality of the load cells, and the number of the material box mechanisms is an integer multiple of the number of the load cells.

Further, there are a plurality of the rejecting mechanisms, and the plurality of the rejecting mechanisms are arranged on the frame body at intervals.

Further, the weighing feeding mechanism includes a manipulator and a manipulator drive assembly, the discharge port of the manipulator is located directly above the weighing tray, and the manipulator drive assembly is used to drive the manipulator to open or close.

Further, the rejection mechanism includes an electromagnet, a moving rod, a spring and a rejection block, one end of the moving rod is connected with the rejection block, and the other end of the moving rod is connected with the electromagnet through a spring.

Further, the counter includes a photoelectric sensor.

Further, the count reset device includes a metal block and a metal block sensor, the metal block is provided on the material box mechanism, the metal block sensor is provided on the frame body, and there is one metal block.

Further, the material box mechanism includes a material box, a bracket and a base, a bracket is connected below the material box, the bracket and the base are rotatably connected, and the bottom of the base is connected with a chain.

Further, the conveying mechanism includes a conveying chain, a gear and a drive assembly, a gear is respectively provided at both ends of the frame body, the chain is sleeved on the outside of the two gears, and a material box mechanism is arranged above the chain, and the drive assembly is used to drive the gear to rotate. .

Further, the conveying mechanism further includes two chain tracks, the two chain tracks are arranged in parallel and spaced apart between the two gears, and the chain tracks are used to limit the chain.

Compared with the prior art, the beneficial effect of the utility model is that: the weighing and sorting machine adopts the static weighing method to weigh the material, reduces the weighing fluctuation, and the weighing error is small, and directly weighs the material. It is heavy and has high weighing accuracy; the weighing and feeding mechanism is used for feeding, which reduces the weighing time and improves the weighing efficiency.

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a side view of the present invention.

FIG. 3 is a schematic structural diagram of the weighing mechanism and the weighing feeding mechanism of the present invention.

FIG. 4 is a schematic structural diagram of the material box mechanism of the present invention.

Among them, 1. Frame body, 2. Control mechanism, 3. Material box mechanism, 4. Rejecting mechanism, 5. Metal block sensor, 6. Counter, 7. Gear, 8. Chain track, 9. Load cell, 10 , Weighing tray, 11, Manipulator drive assembly, 12, Manipulator, 13, Air blow assembly, 14, Material box, 15, Bracket, 16, Base.

Detailed ways

As shown in Figures 1 to 4, a weighing and sorting machine includes a frame body 1, a control mechanism 2, and a conveying mechanism, a weighing mechanism, a weighing feeding mechanism, a centering mechanism, a rejecting mechanism, and Mechanism 4, counter 6 and counter resetter, the conveying mechanism is provided with a material box mechanism 3, and the conveying mechanism is used to drive the material box mechanism 3 to operate, thereby realizing the conveying of materials. The rejecting mechanism 4 , the counter 6 and the counter reset device are all arranged on the side of the material box mechanism 3 , and the rejecting mechanism 4 is used to kick over the material box 14 of the material box mechanism 3 to realize the dumping of materials. The counter 6 is used to count the magazines 14 of the magazine mechanism 3 . The count reset device is used to detect the initial position of the count, so that the counter 6 starts counting again. The righting mechanism is used for righting the material box 14 of the material box mechanism 3, and the righting mechanism is arranged on the outside of the conveying mechanism. Specifically, the righting mechanism is a righting plate inclined upward along the conveying direction. 3. When conveying along the conveying direction, the centering plate gradually lifts the material box 14, so as to realize the centering of the material box mechanism 3. The weighing mechanism is arranged on the outside of the conveying mechanism, and the weighing and feeding mechanism is arranged above the weighing mechanism. The weighing sensor 9 is arranged on the outer side of the conveying mechanism, the weighing material tray 10 is arranged on the weighing sensor 9 and is located above the material box 14 of the material box mechanism 3, and the air blowing component 13 is arranged on the weighing material. The outer side of the pan 10 is used to blow the material on the weighing pan 10 into the feeding box 14. The control mechanism 2 is arranged on one side of the frame body 1 and is respectively connected with the conveying mechanism, the rejecting mechanism 4, the counter 6, and the counter reset device. , The weighing mechanism and the weighing and feeding mechanism are electrically connected. Specifically, the control mechanism 2 includes a PLC controller, which is electrically connected to the conveying mechanism, the rejecting mechanism 4, the counter 6, the counter resetter, the weighing mechanism and the weighing and feeding mechanism, respectively. The material is placed on the weighing tray 10 through the weighing and feeding mechanism, and the weighing sensor 9 statically weighs the material and transmits the weighing information to the PLC controller. The PLC controller counts the counter 6 and carries out the weighing information. Record, after weighing, the material is blown from the weighing tray 10 into the material box 14 by the blowing component 13 , and the material is transported with the material box 14 . The PLC controller controls the rejecting mechanism 4 to kick over the material boxes 14 within the preset range according to the rejecting weight range of the rejecting mechanism 4 preset by the user to complete the sorting of materials. The material is weighed by static weighing, which reduces the weighing fluctuation, and the weighing error is small. The material is directly weighed, and the weighing accuracy is high.

There are a plurality of the material box mechanisms 3 and a plurality of the load cells 9, each of the load cells 9 is connected to a weighing tray 10 and corresponds to a weighing feeding mechanism, the The number of the magazine mechanism 3 is an integer multiple of the number of 9 load cells. The number of the material box mechanisms 3 is set to be an integer multiple of the number of 9 load cells, so that within one count cycle of the counter 6, the load cells 9 can just complete the weighing of all the materials on the material box mechanisms 3.

There are a plurality of the rejecting mechanisms 4 , and the plurality of the rejecting mechanisms 4 are arranged on the frame body 1 at intervals. Specifically, a plurality of the rejecting mechanisms 4 are arranged on the rack body 1 at intervals along the conveying direction. The rack body 1 is further provided with a discharge area on the side opposite to the weighing mechanism. The discharge area includes a plurality of weight divisions, and each rejection mechanism 4 corresponds to a weight division.

The weighing and feeding mechanism includes a manipulator 12 and a manipulator drive assembly 11 . The discharge port of the manipulator 12 is located directly above the weighing tray 10 , and the manipulator drive assembly 11 is used to drive the manipulator 12 to open or close. Specifically, there are multiple manipulators 12 , and each manipulator 12 is connected to a manipulator drive assembly 11 . When there are multiple manipulators 12, the multiple manipulator drive components 11 respectively drive the manipulators 12 connected to them at the same time, so that the materials pre-placed on the manipulators 12 can fall onto the weighing tray 10 at the same time, and the weighing is completed at the same time. In order to save weighing time and improve weighing efficiency.

The rejection mechanism 4 includes an electromagnet, a moving rod, a spring and a rejection block. One end of the moving rod is connected to the rejection block, and the other end of the moving rod is connected to the electromagnet through a spring. Specifically, when the electromagnet is energized to generate magnetism, the electromagnet absorbs the moving rod and moves toward the electromagnet, the moving rod compresses the spring, and the moving rod drives the rejection block to move in the direction of the electromagnet, and the rejection block kicks the material box 14 over; When the electromagnet is powered off, the electromagnet is demagnetized, and the spring reset makes the moving rod move away from the electromagnet, and the moving rod drives the rejection block to move away from the electromagnet to reset the rejection block.

The counter 6 includes a photosensor. Specifically, the photoelectric sensor is fixed on the frame body 1 and is located on the side of the material box mechanism 3 . When the material box mechanism 3 passes the photoelectric sensor, the photoelectric sensor senses the change of light and shadow, and transmits the change signal to the PLC controller, and the PLC controller completes the counting of the material box mechanism 3 .

The count reset device includes a metal block and a metal block sensor 5, the metal block is provided on the material box mechanism 3, the metal block sensor 5 is provided on the frame body 1, and there is one metal block. Specifically, the metal block moves with the material box mechanism 3. When the metal block sensor 5 senses the metal block again, it means that the metal block moves with the material box mechanism 3 for a counting period. At this time, the counter 6 returns to zero and starts again. count.

The material box mechanism 3 includes a material box 14, a bracket 15 and a base 16. A bracket 15 is connected below the material box 14, the bracket 15 is rotatably connected to the base 16, and the bottom of the base 16 is connected to a chain. The base 16 is driven to move by the chain, thereby realizing the movement of the material box 14 . The tipping or righting of the cartridge 14 is achieved by the rotation of the bracket 15 relative to the base 16 .

The conveying mechanism includes a conveying chain, a gear 7 and a drive assembly. The two ends of the frame body 1 are respectively provided with a gear 7, the chain is sleeved on the outside of the two gears 7, and a material box mechanism 3 is arranged above the chain. The drive assembly is used to drive the gears. 7 Turn. The drive assembly drives the gear 7 to rotate, the rotation of the gear 7 further drives the chain to rotate, and the rotation of the chain drives the rotation of the material box mechanism 3 to realize the conveyance of the material box mechanism 3 by the conveying mechanism.

The conveying mechanism further includes two chain rails 8 , which are arranged in parallel and spaced apart between the two gears 7 , and the chain rails 8 are used to limit the chain.

working principle:

The user inputs the rejection weight range of each rejection mechanism 4 into the PLC controller according to actual needs, and at the same time, the number n of the load cells 9 and the material are transported to each rejection mechanism from any position of the load cell 9. The number of counts that need to be experienced at the position of 4 and the number of counts m that need to be experienced when the material is transported from the position of the counter 6 to the position of the last load cell 9 along the conveying direction are input into the PLC controller.

Weighing process:

Start the weight sorting machine, the PLC controller controls the conveying mechanism to start, the conveying mechanism starts to convey the material box 14, the PLC controller controls the manipulator 12 to discharge materials at the same time, the load cell 9 weighs the materials on the weighing tray 10, and the PLC The controller records the weighing information uploaded by each load cell 9 . When the metal block sensor 5 senses the metal block, the counter 6 starts counting and counts the material box 14 as the No. 1 material box. When the counter 6 counts m times, it means that the No. 1 material box is transported to the last load cell. Below the 9, the PLC controller records the counting information of the material box 14, and establishes the corresponding relationship between the load cell 9, the number of material boxes and the material weight (that is, the counting position of the load cell 9 along the conveying direction is n, n-1, ... 2, 1, the counting information of the material box 14 corresponding to the load cell 9 is also n, n-1, ... 2, 1). At the same time, the PLC controller controls the blowing component 13 to The material is blown into the material box 14 . When the material on the weighing tray 10 is blown into the material box 14, the PLC controller controls the manipulator 12 to discharge materials at the same time, the weighing sensor 9 weighs the material on the weighing tray 10, and the PLC controller measures each The weighing information uploaded by the load cell 9 is recorded. When the counter 6 counts up n times, the PLC controller records the count information of the material box 14 and establishes the relationship between the load cell 9, the number of material boxes and the material weight. Corresponding relationship (that is, the count bits of the load cell 9 along the conveying direction are n, n-1, ... 2, 1, and the count information of the material box 14 corresponding to the load cell 9 is 2n, 2n-1, ... n +2, n+1), at the same time, the PLC controller controls the blowing component 13 to blow the material into the material box 14. After that, when the manipulator 12 discharges the material, the material is replenished in time. At the same time, when the material on the weighing tray 10 is blown into the material box 14, the manipulator 12 discharges the material in time, and the start cycle of the blowing component 13 is n, that is, every After adding n counts, the blowing component 13 is activated once until the counter 6 reaches the counting period (ie, the counting times of the counter 6 reaches the total number of the material boxes 14 ), and a weighing cycle is completed.

Sorting process:

When the material is weighed and blown down to the material box 14, the material is conveyed along the conveying direction along with the material box 14. At this time, the PLC controller according to the load cell 9, the number of material boxes and the material weight Corresponding relationship Determines the rejection weight range to which the material on the material box 14 belongs (that is, determines which position the material on the material box 14 needs to be kicked out by the rejecting mechanism 4). When the position of the sensor 9 is conveyed to the position of the desired rejection mechanism 4, the number of counts experienced is the same, indicating that the material has been conveyed to the side of the desired rejection mechanism 4. At this time, the PLC controller controls the rejection mechanism 4 to remove the material. The box 14 is kicked over, and the material on the material box 14 is dumped to the corresponding weight partition to realize the sorting of the material.

It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A weighing sorting machine is characterized in that: comprising a frame body, a control mechanism and a conveying mechanism, a weighing mechanism, a weighing feeding mechanism, a centralizing mechanism, a rejecting mechanism, a counter and a counting mechanism that are all arranged on the frame body Resetting device, the conveying mechanism is provided with a material box mechanism, the rejecting mechanism, the counter and the counting reset device are all arranged on the side of the material box mechanism, and the righting mechanism is used for righting the material box of the material box mechanism. The weighing mechanism is arranged on the outer side of the conveying mechanism, and the weighing and feeding mechanism is arranged above the weighing mechanism. The weighing mechanism includes a weighing sensor, a weighing tray and an air blowing assembly. On the outer side of the conveying mechanism, the weighing material tray is set on the load cell and above the material box of the material box mechanism. For blowing the feeding box, the control mechanism is arranged on one side of the frame body and is respectively electrically connected with the conveying mechanism, the rejecting mechanism, the counter, the counter resetter, the weighing mechanism and the weighing and feeding mechanism. 2. The weighing sorting machine according to claim 1, characterized in that: the number of the material box mechanisms is a plurality of, and the number of the load cells is a plurality of, and the number of the material box mechanisms is the number of the load cells. integer multiples of numbers. 3 . The weighing and sorting machine according to claim 1 , wherein: there are a plurality of the rejecting mechanisms, and the plurality of the rejecting mechanisms are arranged on the frame body at intervals. 4 . 4. The weighing and sorting machine according to claim 1, characterized in that: the weighing and feeding mechanism comprises a manipulator and a manipulator drive assembly, and the discharge port of the manipulator is located directly above the weighing tray, so the The manipulator drive assembly is used to drive the manipulator to open or close. 5 . The weighing and sorting machine according to claim 1 , wherein the rejecting mechanism comprises an electromagnet, a moving rod, a spring and a rejecting block, one end of the moving bar is connected to the rejecting block, and the other end of the moving bar is connected to the rejecting block. 6 . One end is connected with the electromagnet through a spring. 6. The weighing sorter of claim 1, wherein the counter comprises a photoelectric sensor. 7. The weighing and sorting machine according to claim 1, characterized in that: the count reset device comprises a metal block and a metal block sensor, the metal block is arranged on the material box mechanism, and the metal block sensor It is arranged on the frame body, and the number of the metal block is one. 8. The weighing and sorting machine according to claim 1, wherein the material box mechanism comprises a material box, a bracket and a base, a bracket is connected below the material box, and the bracket and the base are rotatably connected, so that the The bottom of the base is connected with the chain. 9. The weighing and sorting machine according to claim 1, characterized in that: the conveying mechanism comprises a conveying chain, a gear and a drive assembly, two ends of the frame body are respectively provided with a gear, and the chain is sleeved on the two gears. On the outside, there is a material box mechanism above the chain, and the drive assembly is used to drive the gear to rotate. 10 . The weighing and sorting machine according to claim 9 , wherein the conveying mechanism further comprises two chain tracks, the two chain tracks are arranged at intervals in parallel and are located between two gears, the The chain track is used to limit the chain.

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