CN108407200A - Punching injection molding one-pass molding automatic die and its application method - Google Patents

Abstract

The invention discloses an automatic mold for punching and injection molding and a method for using the same. It includes a feeding device, a mold body, a coiling device, and an automatic computer control box. The film tape is continuously fed into the mold body; the coiling device drags the die-cut film tape edge material out of the mold body, including the driving shaft and the clamping shaft. The driving shaft is controlled by a stepping motor and the clamping shaft is controlled by the clamping bolt. Control the clamping position; the automatic computer control box controls the switch of the stepper motor, and drags the film away to the rated value. The die-cutting and injection-molding one-time automatic mold and its use method use the process of combining object die-cutting and injection molding to make the diaphragm object and injection molded product one-time combined and molded, which greatly reduces the cost required for product production and improves The quality of the product is guaranteed, and the efficient automatic production of the product is realized.

Description

Die-cut injection molding automatic mold and its application method

technical field

The invention relates to an injection molding product and a diaphragm object, in particular to an automatic mold for die-cutting and injection molding at one time and a use method thereof.

Background technique

Usually, to achieve the combination of diaphragm objects and injection molding products, two methods are usually used: 1. After punching out with specially manufactured equipment, put the cut diaphragm objects into the mold for injection molding; 2. After the injection molding product is formed (there is no diaphragm object in the product at this time), the die-cut diaphragm object and the injection molding product are combined through the automatic assembly equipment (the combination principle can be heated or ironed or Ultrasonic vibration, etc.).

Compared with the present invention, the above production process has some disadvantages: a. In addition to the place where the injection molding equipment is placed, another space is needed to place the punching place of the diaphragm object (such as the above-mentioned one), or the automatic assembly equipment (such as the above-mentioned two). And additional investment in equipment funds; b. Need to manually place the diaphragm object, increasing labor and time costs; c. The production process is likely to cause secondary pollution of the product (such as disposable medical products and other products with hygienic requirements); d The bonding firmness of the two objects is poor, and it is easy to separate; e. The production efficiency is low.

Contents of the invention

In order to make up for the above deficiencies, the present invention provides a punching injection molding automatic mold and its use method.

The technical solution of the present invention is: an automatic mold for one-time punching and injection molding, including a feeding device, a mold body, a coiling device, and an automatic computer control box:

The feeding device is a tape coiling tray, and the film tape is continuously fed into the mold body under the drive of the coiling device;

The coiling device drags the die-cut film tape edge material out of the mold body, including a driving shaft and a clamping shaft. The driving shaft is controlled by a stepping motor to rotate, and the clamping shaft is clamped by a clamping bolt. Location;

The automatic computer control box controls the stepping motor switch, and drags the film away to the rated value;

The mold body includes a static mold and a movable mold that are arranged correspondingly up and down and are used in conjunction with each other. The static mold includes A layer, B layer, C layer, D layer, E layer and F layer from top to bottom. Layer and B layer are fixedly connected, C layer and D layer are fixedly connected, E layer and F layer are fixedly connected, and a compression spring is provided between the B layer and E layer, and the compression spring pushes away the B layer and the C layer, respectively. D layer and E layer, there is a flushing pipe between the D layer and the E layer, the upper end of the flushing pipe is fixed in the D layer, and a static mold thimble is installed in the movable sleeve of the flushing pipe, and the static mold thimble The upper end of the upper end of the punching plate is fixed in the B layer, and the lower part of the E layer is provided with a punching plate corresponding to the position of the punching pipe, and the middle position of the upper end of the punching plate is provided with a film-through square groove for the film belt to pass through. A mold cavity is provided, the lower end surface of the mold cavity is in contact with the upper end surface of the punching plate, and a passage for the punching pipe to pass is provided in the mold cavity and the punching plate, and the square groove through the mold is connected to the passage , the B layer is fixed with a limit block, the lower end surface of the limit block passes through the B layer, and the C layer is provided with a flushing pipe stop slider that can slide left and right, and the limit block The lower end surface of the block is in contact with the upper end surface of the flushing pipe stop slider, and a lock block is provided below the corresponding flush pipe stop slider between the E layer and the C layer, and the lower end of the lock block is fixed in the E layer. When the static mold is compressed and closed, the lock block can press the flushing pipe stop slider so that the flushing pipe stop slider can be displaced laterally;

The movable mold includes G layer, H layer, I layer, J layer, K layer, ejection layer, L layer from top to bottom, and the G layer and H layer are fixedly connected, and the I layer, J layer, The K layer, the ejector layer and the L layer are fixedly connected, and a movable mold thimble is arranged on the vertical line corresponding to the static mold thimble in the movable mold, and the lower end of the movable mold thimble passes through the J layer and is limited to the K layer and the upper end Going out of the G layer, the movable mold thimble is covered with an ejector sliding sleeve, the lower end of the ejector sliding sleeve is fixed in the I layer and the upper end passes through the G layer, and the thimble sliding sleeve is provided with an thimble return spring inside, and the movable mold ejector pin Through the return spring of the thimble, a top plate is provided in the ejection layer, and a push post is provided between the I layer and the ejection layer, and the upper end surface of the push post pushes against the lower end surface of the H layer, and the top end of the push post The lower end is fixed in the top plate, and the top column is covered with a top plate return spring.

A number of static mold guide columns are uniformly arranged in the static mold, and the upper ends of the static mold guide columns are all fixed in the A layer, and the lower ends of the static mold guide columns pass through the F layer and are provided with limit caps. The position corresponding to the penetration of the static mold guide column is provided with a first hollow part, and a number of movable mold guide columns are uniformly arranged in the movable mold 7, and the upper ends of the movable mold guide columns pass through the G layer and the lower ends are fixed on the H layer. In the layer, the position where the guide column of the static mold is corresponding to the movable mold penetrates is the second hollow part.

As a preferred technical solution, a limit block is provided at the lower part of the movable mold thimble, and a limit slot is provided at a position corresponding to the limit block in the K layer, and the limit block can only move up and down in the limit slot.

As a preferred technical solution, a method for using an automatic mold for punching and injection molding, is characterized in that it includes the following steps:

a. Cooperate the feeding device, mold body, coiling device, automatic computer control box with the injection molding machine, pass the film tape on the coiling device through the film-through square groove of E layer, and clamp it to the driving shaft and clamp Between the shafts, adjust the clamping bolts;

b. Under the action of the injection molding machine, the movable mold is pressed against the static mold, the guide column of the movable mold penetrates into the second hollow part, the guide column of the static mold penetrates into the first hollow part, the F layer and the H layer begin to close together, and the thimble sleeve Both the upper part and the upper part of the movable mold thimble penetrate into the mold cavity;

c. The injection molding machine continues to push the movable mold, and the thimble of the movable mold continues to approach the thimble of the static mold. Since the lower end surface of the limit stopper is offset against the upper end surface of the flushing tube stop slider, layers D and E begin to close together under pressure. Drive the punching plate to press upwards, the film belt is in contact with the punching tube, and continue to press until the punching tube cuts out a piece of the film belt. The end of the thimble contacts and clamps the diaphragm, the D layer and the E layer contact, and the upper end surface of the lock block contacts the flushing tube stop slider;

d. E layer drives the lock block to press the punching stop slider to make it move laterally, the limit stopper penetrates the position of the original punching stop slider in layer C, layer B and C are closed, and the thimble return spring is moved Compression, the movable mold thimble and the static mold thimble push the cut diaphragm down to the designated position in the mold cavity, so that the mold body is completely closed;

e. The injection molding machine injects into the cavity of the mold. After the injection liquid is combined with the surrounding of the diaphragm and solidified, the static mold and the dynamic mold are separated again. At this time, the injection-molded product is placed outside the thimble of the dynamic mold;

f. The top plate in the ejection layer starts to press up under the action of an oil cylinder of the injection molding machine, the upper end of the ejector column lifts up the G layer and the H layer, and the upper end of the movable mold ejector pin is completely closed in the G layer, and the product is ejected;

g. The automatic computer control box starts to give instructions, the stepping motor drives the driving shaft, and drags the film away to the rated value.

Due to the adoption of the above-mentioned technical scheme, the punching-cutting injection-molding one-time automatic mold and its use method described in the present invention utilize the process of combining object punching and injection molding to make the diaphragm object and the injection molding product one-time combined and formed, greatly The cost required for product production is reduced, the quality of the product is improved, and efficient automatic production of the product is realized.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a schematic structural view of the mold body of the embodiment of the present invention before mold closing;

Fig. 3 is a structural schematic diagram when the F layer and the G layer of the mold body of the embodiment of the present invention are closed;

Fig. 4 is a structural schematic view when the D layer and the E layer of the mold body of the embodiment of the present invention are closed;

Figure 5 is an enlarged view of A in Figure 4;

Fig. 6 is a schematic structural view of the mold body of the embodiment of the present invention when it is fully closed;

Fig. 7 is a structural schematic diagram when the top pillar of the mold body of the embodiment of the present invention lifts up the G layer and the H;

Among them: 1-feeding device; 2-mold body; 21-compression spring; 22-flushing tube; 23-static mold thimble; 24-punching plate; Thimble; 271-thimble sliding sleeve; 272-thimble return spring; 273-limit block; 28-top plate; 29-top column; 291-top plate return spring; Clamping shaft; 33-clamping bolt; 5-film belt; 51-diaphragm; 6-static mold; 61-A layer; 62-B layer; 63-C layer; 64-D layer; 65-E layer; 66-F layer; 67-limit block; 68-pipe stop slider; 69-lock block; 611-static mold guide column; 612-limit cap; 613-second hollow part; ; 71-G layer; 72-H layer; 73-I layer; 74-J layer; 75-K layer; 79-moving mold guide column.

Detailed ways

Embodiment 1: As shown in Figures 1 to 5, an automatic mold for punching and injection molding at one time, including a feeding device 1, a mold body 2, a coiling device 3, and an automatic computer control box:

The feeding device 1 is a tape coiling tray, and the film tape 5 is continuously fed into the mold body 2 under the drive of the coiling device 2;

The coiling device 3 drags the die-cut film strip 5 side material out of the mold body 2, including a driving shaft 31 and a clamping shaft 32, and the driving shaft 31 is controlled by a stepping motor to rotate, and the clamping shaft 32 The clamping position is controlled by the clamping bolt 33;

The automatic computer control box controls the stepper motor switch, and drags the film belt 5 to the rated value;

The mold body 2 includes a static mold 6 and a movable mold 7 that are arranged correspondingly up and down and are used in conjunction with each other. The static mold 6 includes an A layer 61, a B layer 62, a C layer 63, a D layer 64, and an E layer from top to bottom. Layer 65 and F layer 66, said A layer 61 and B layer 62 are fixedly connected, C layer 63 and D layer 64 are fixedly connected, E layer 65 and F layer 66 are fixedly connected, between said B layer 62 and E layer 65 A compression spring 21 is provided, and the compression spring 21 pushes away the B layer 62 and the C layer 63, the D layer 64 and the E layer 65 respectively, and a flushing tube 22 is arranged between the D layer 64 and the E layer 65, and the flushing tube 22 is fixed in the D layer 64, and a static die thimble 23 is installed in the pipe movable sleeve of the flushing pipe 22, and the upper end of the static die thimble 23 is fixed in the B layer 62, and the lower part of the E layer 65 corresponds to the punching The position of the pipe 22 is provided with a punching plate 24, the middle position of the upper end of the punching plate 24 is provided with a film-through square groove 25 for the film belt 5 to pass through, and a mold cavity 26 is provided in the F layer 66, and the mold cavity The lower end face of die cavity 26 is in contact with the upper end face of punching plate 24, and the channel for punching tube 22 is all provided in described mold cavity 26 and punching plate 24, and described die-through square groove 25 communicates with channel, and described The B layer 62 is fixed with a stop block 67, the lower end surface of the stop block 67 passes through the B layer 62, and the C layer 63 is provided with a flushing pipe stop slider 68 that can slide left and right. The lower end surface of the limit block 67 is offset against the upper end surface of the flushing pipe stop slider 68, and a lock block 69 is arranged below the corresponding flushing pipe stop slider 68 between the E layer 65 and the C layer 63, and the lock The lower end of the block 69 is fixed in the E layer 65. When the static mold 6 is compressed and closed, the lock block 69 can press the flushing pipe stop slide block 68, so that the flush pipe stop slide block 68 is laterally displaced;

Described moving mold 7 comprises G layer 71, H layer 72, I layer 73, J layer 74, K layer 75, ejector layer 76, L layer 77 successively from top to bottom, and described G layer 71 and H layer 72 are fixed connection, the I layer 73, the J layer 74, the K layer 75, the ejection layer 76 and the L layer 77 are fixedly connected, and a movable mold thimble 27 is arranged on the vertical line corresponding to the static mold thimble 23 in the movable mold 7, The lower end of the movable mold thimble 27 passes through the J layer 74 and is limited in the K layer 75 and the upper end passes through the G layer 71. The movable mold thimble 27 is covered with a thimble sliding sleeve 271, and the lower end of the thimble sliding sleeve 271 is fixed on the I In the layer 73 and the upper end passes through the G layer 71, the thimble sleeve 271 is provided with a thimble return spring 272, the movable mold thimble 27 passes through the thimble return spring 272, and the ejection layer 76 is provided with a top plate 28, A top post 29 is provided between the I layer 73 and the ejection layer 76, and the upper end surface of the top post 29 is pushed against the lower end surface of the H layer 72, and the lower end of the top post 29 is fixed in the top plate 28, and the top post 29 is outside. The suit has the top plate return spring 291.

Several static mold guide columns 611 are uniformly arranged in the static mold 6, and the upper ends of the static mold guide columns 611 are all fixed in the A layer 61, and the lower ends of the static mold guide columns 611 pass through the F layer 66 and are provided with stoppers. Cap 612, the position where the movable mold 7 is corresponding to the penetration of the static mold guide column 611 is provided with a first hollow part 78, and the movable mold 7 is evenly provided with a number of movable mold guide columns 79, and the movable mold guide column 79 The upper ends of each pass through the G layer 71 and the lower ends are fixed in the H layer 72, and the position where the static mold 6 is inserted corresponding to the movable mold guide column 79 is the second hollow part 613. A plurality of movable mold guide pillars 79 and static mold guide pillars 611 are arranged to make the mold structure more stable.

The lower part of the movable mold thimble 27 is provided with a limit block 273, and the position corresponding to the limit block 273 in the K layer 75 is provided with a limit groove 751, and the limit block 273 can only move up and down in the limit groove 751. A limit slot 751 and a limit block 273 are set to prevent the movable mold thimble 27 from falling out of the movable mold.

A method for using an automatic mold for punching and injection molding, characterized in that it comprises the following steps:

a. Cooperate the feeding device 1, the mold body 2, the coiling device 3, the automatic computer control box and the injection molding machine, pass the film tape 5 on the coiling device 3 through the film-through square groove 25 of the E layer 65, and clamp Tighten between the driving shaft 31 and the clamping shaft 32, adjust the clamping bolt 33;

b. Under the action of the injection molding machine, the movable mold 7 is pressed against the static mold 6, the movable mold guide column 79 penetrates the second hollow part 613, the static mold guide column 611 penetrates the first hollow part 78, F layer 66 and H layer 72 starts to close up, and the top of the thimble sleeve 271 and the top of the movable mold thimble 27 all penetrate in the mold cavity 26;

c. The injection molding machine continues to push the movable mold 7. Since the lower end surface of the stop block 67 is in contact with the upper end surface of the punching tube stop slide block 68, the D layer 64 and the E layer 65 are pressed together first, driving the punching plate 24 upward. Press tightly, the film belt 5 contacts the punching tube 22, and continue to press until the punching tube 22 cuts out a piece of the film belt 5. At this time, the punching tube 22 and the static mold thimble 23 pass the punching plate 24 with the diaphragm 21, and the movable mold The thimble 27 is in contact with the end of the static mold thimble 23 and clamps the diaphragm 51, the D layer 64 is in contact with the E layer 65, and the upper end surface of the locking block 69 is in contact with the flushing pipe stop slider 68;

d. E layer 65 drives the lock block 69 to press the flushing pipe stop slider 68 to make it move laterally, and the limit stopper 67 penetrates into the position of the original flushing pipe stop slider 68 in the C layer 63, and the B layer 62 and the C layer 63 is closed, the thimble return spring 272 is compressed, the movable mold thimble 27 and the static mold thimble 23 push the cut diaphragm 51 down to the designated position in the mold cavity 26, so far the mold body 2 is completely closed;

e. The injection molding machine injects into the mold cavity 26. After the injection molding liquid is combined with the diaphragm 51 and solidified, the static mold 6 and the movable mold 7 are separated again. At this time, the injection-molded product is placed outside the movable mold thimble 27;

f. The top plate 28 in the ejection layer 76 starts to press up under the action of an oil cylinder of the injection molding machine, the upper end of the ejector column 29 lifts up the G layer 71 and the H layer 72, and the upper end of the movable mold thimble 27 is completely received in the G layer 71 , the product is ejected;

g. The automatic computer control box starts to give instructions, and the stepping motor drives the driving shaft 31, and drags the film belt 5 to the rated value.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. An automatic mold for punching and injection molding, including a feeding device, a mold body, a coiling device, and an automatic computer control box: The feeding device is a tape coiling tray, and the film tape is continuously fed into the mold body under the drive of the coiling device; The coiling device drags the die-cut film tape edge material out of the mold body, including a driving shaft and a clamping shaft. The driving shaft is controlled by a stepping motor to rotate, and the clamping shaft is clamped by a clamping bolt. Location; The automatic computer control box controls the stepping motor switch, and drags the film away to the rated value; The mold body includes a static mold and a movable mold that are arranged correspondingly up and down and are used in conjunction with each other. The static mold includes A layer, B layer, C layer, D layer, E layer and F layer from top to bottom. Layer and B layer are fixedly connected, C layer and D layer are fixedly connected, E layer and F layer are fixedly connected, and a compression spring is provided between the B layer and E layer, and the compression spring pushes away the B layer and the C layer, respectively. D layer and E layer, there is a flushing pipe between the D layer and the E layer, the upper end of the flushing pipe is fixed in the D layer, and a static mold thimble is installed in the movable sleeve of the flushing pipe, and the static mold thimble The upper end of the upper end of the punching plate is fixed in the B layer, and the lower part of the E layer is provided with a punching plate corresponding to the position of the punching pipe, and the middle position of the upper end of the punching plate is provided with a film-through square groove for the film belt to pass through. A mold cavity is provided, the lower end surface of the mold cavity is in contact with the upper end surface of the punching plate, and a passage for the punching pipe to pass is provided in the mold cavity and the punching plate, and the square groove through the mold is connected to the passage , the B layer is fixed with a limit block, the lower end surface of the limit block passes through the B layer, and the C layer is provided with a flushing pipe stop slider that can slide left and right, and the limit block The lower end surface of the block is in contact with the upper end surface of the flushing pipe stop slider, and a lock block is provided below the corresponding flush pipe stop slider between the E layer and the C layer, and the lower end of the lock block is fixed in the E layer. When the static mold is compressed and closed, the lock block can press the flushing pipe stop slider so that the flushing pipe stop slider can be displaced laterally; The movable mold includes G layer, H layer, I layer, J layer, K layer, ejection layer, L layer from top to bottom, and the G layer and H layer are fixedly connected, and the I layer, J layer, The K layer, the ejector layer and the L layer are fixedly connected, and a movable mold thimble is arranged on the vertical line corresponding to the static mold thimble in the movable mold, and the lower end of the movable mold thimble passes through the J layer and is limited to the K layer and the upper end Going out of the G layer, the movable mold thimble is covered with an ejector sliding sleeve, the lower end of the ejector sliding sleeve is fixed in the I layer and the upper end passes through the G layer, and the thimble sliding sleeve is provided with an thimble return spring inside, and the movable mold ejector pin Through the return spring of the thimble, a top plate is provided in the ejection layer, and a push post is provided between the I layer and the ejection layer, and the upper end surface of the push post pushes against the lower end surface of the H layer, and the top end of the push post The lower end is fixed in the top plate, and the top column is covered with a top plate return spring. 2. A kind of punching injection molding automatic mold as claimed in claim 1, characterized in that, several static mold guide columns are uniformly arranged in the static mold, and the upper ends of the static mold guide columns are all fixed on the A layer Inside, the lower ends of the guide columns of the static mold pass through the F layer and are provided with limit caps, and the position of the movable mold corresponding to the guide column of the static mold is provided with a first hollow part, and the movable mold 7 is evenly provided with several The guide column of the movable mold, the upper end of the guide column of the movable mold passes through the G layer and the lower end is fixed in the H layer, and the position of the static mold corresponding to the guide column of the movable mold is the second hollow part. 3. A method for using an automatic mold for punching and injection molding as claimed in claim 2, characterized in that, the lower part of the movable mold thimble is provided with a limit block, and the position of the corresponding limit block in the K layer is opened There is a limit slot, and the limit block can only move up and down in the limit slot. 4. A method for using a die-cutting injection molding automatic mold as claimed in claim 3, comprising the steps of: a. Cooperate the feeding device, mold body, coiling device, automatic computer control box with the injection molding machine, pass the film tape on the coiling device through the film-through square groove of E layer, and clamp it to the driving shaft and clamp Between the shafts, adjust the clamping bolts; b. Under the action of the injection molding machine, the movable mold is pressed against the static mold, the guide column of the movable mold penetrates into the second hollow part, the guide column of the static mold penetrates into the first hollow part, the F layer and the H layer begin to close together, and the thimble sleeve Both the upper part and the upper part of the movable mold thimble penetrate into the mold cavity; c. The injection molding machine continues to push the movable mold, and the thimble of the movable mold continues to approach the thimble of the static mold. Since the lower end surface of the limit stopper is offset against the upper end surface of the flushing tube stop slider, layers D and E begin to close together under pressure. Drive the punching plate to press upwards, the film belt is in contact with the punching tube, and continue to press until the punching tube cuts out a piece of the film belt. The end of the thimble contacts and clamps the diaphragm, the D layer and the E layer contact, and the upper end surface of the lock block contacts the flushing tube stop slider; d. E layer drives the lock block to press the punching stop slider to make it move laterally, the limit stopper penetrates the position of the original punching stop slider in layer C, layer B and C are closed, and the thimble return spring is moved Compression, the movable mold thimble and the static mold thimble push the cut diaphragm down to the designated position in the mold cavity, so that the mold body is completely closed; e. The injection molding machine injects into the mold cavity. After the injection molding is completed, the static mold and the dynamic mold are separated again. At this time, the injection-molded product is placed outside the movable mold thimble; f. The top plate in the ejection layer starts to press up under the action of an oil cylinder of the injection molding machine, the upper end of the ejector column lifts up the G layer and the H layer, and the upper end of the movable mold ejector pin is completely closed in the G layer, and the product is ejected; g. The automatic computer control box starts to give instructions, the stepping motor drives the driving shaft, and drags the film away to the rated value.