CN115352003A - Support and buckle injection mold - Google Patents

Abstract

The invention discloses a support buckle injection mold, which comprises a top plate, an injection molding mechanism for parts, an integral ejection mechanism, and a cooling and heating mechanism; a template is provided at the bottom of the top plate, and a pressing plate is fixedly connected to the bottom of the top plate; On the top, the component injection molding mechanism is used for injection molding of the supporting buckle parts; the integral ejection mechanism is installed on the top of the template; when the present invention is used, the top plate is driven downward by external equipment, and the injection molding raw materials are circulated to the The cavity and the square groove, and the raw material will form a relatively narrow connection point in the depression at the junction of the cavity and the square groove. After waiting for cooling and forming, the top plate is lifted upward. When the L-shaped plate loses the pressing force, it is pressed by the first spring. Under the action of the machine, it is lifted upwards and drives the pressure bar to move upwards to perform ejection operations on the molded parts in the cavity and the square groove, and can not directly contact the body of the part during ejection.

Description

A support buckle injection mold

technical field

The invention relates to the technical field of injection molds for parts, in particular to an injection mold for supporting buckles.

Background technique

Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, the molded product is obtained. The injection mold is divided into thermosetting plastic mold and thermoplastic plastic mold according to the molding characteristics; according to the molding process, it is divided into transfer mold. , blow mold, casting mold, thermoforming mold, hot compression mold (compression mold), injection mold, etc.

However, there are still certain problems in the existing injection mold technology for supporting buckle parts. In the actual use of existing injection molds, in order to facilitate the removal of parts after injection molding, ejector rods are often installed on the inner wall of the cavity to form After cooling, use the thrust to eject the parts. Although it is more convenient and quick to eject the parts in the cavity during this process, the ejection of the parts before the cooling temperature will cause wear on the surface of the parts, resulting in low quality of the finished product. At the same time, in After injection molding, there will be excess scrap at the edge of the surface of the part, which needs subsequent grinding or manual removal.

Contents of the invention

The purpose of the present invention is to provide a supporting buckle injection mold to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a support buckle injection mold, including a top plate, a parts injection mechanism, an integral ejection mechanism, and a cooling and heating mechanism;

The bottom of the top plate is provided with a template, and the bottom of the top plate is fixedly connected with a pressure plate;

The parts injection molding mechanism is installed on the template, and the parts injection molding mechanism is used for injection molding the supporting buckle parts;

The integral ejection mechanism is installed on the top of the template, and the integral ejection mechanism is used to support the integral demoulding and rough edge bending operations of the buckle parts after forming;

The cooling and heating mechanism is installed inside the template, and the cooling and heating mechanism is used for temperature control in the injection molding process.

Preferably, the component injection molding mechanism includes a pressure plate, the pressure plate is fixedly connected to the bottom of the top plate, the bottom of the pressure plate and the top of the template are both provided with a cavity, and the inside of the top plate is provided with an injection channel , one end of the injection molding channel is located outside the top plate, the other end of the injection channel is located on the inner wall of the cavity, the top of the template is provided with a plurality of positioning holes, and the bottom of the top plate is fixedly connected with multiple a positioning guide post, and the positioning guide post is slidably installed inside the positioning hole.

Preferably, the integral ejection mechanism includes a plurality of square grooves symmetrically opened on the top of the template, one side of the opening of the square groove is connected with the opening side of the cavity, and the connection is concave Shape, the inside of the template is symmetrically provided with a plurality of U-shaped cavities, the inner wall of the U-shaped cavity is fixedly connected with a guide plate, the outside of the guide plate is provided with a chute, and the inside of the chute of the guide plate An L-shaped plate is slidably installed, the top of the L-shaped plate runs through the inside of the formwork, one side of the L-shaped plate is fixedly connected with a pressure bar, and the top of the pressure bar runs through the inside of the formwork, the The bottom of the pressure rod is fixedly connected with a first spring, and one end of the bottom of the first spring is fixedly connected to the inner bottom of the U-shaped cavity and is located inside the square groove. The bottom of the pressure plate is symmetrically provided with multiple a wire groove, a square pipe is slidably installed in the wire groove, a second spring is fixedly connected to the top of the square pipe, and one end of the top of the second spring is fixedly connected to the inner top of the wire groove, and the square pipe is fixedly connected to the inner top of the wire groove. A pressing barrel is fixedly connected to one end of the bottom of the tube, and a groove is provided at the bottom of the pressing barrel, and a tapered protrusion is fixedly connected to the groove.

Preferably, the cooling and heating mechanism includes two oil delivery pipes, and the two oil delivery pipes are symmetrically embedded on one side of the template, and a curved heating channel is provided inside the template, and the two ends of the heating channel It communicates with the two oil delivery pipes, a water pump is installed on one side of the formwork, and two water delivery shells are symmetrically installed on the top of the formwork, the inside of the water delivery shell is hollow, and the inside of the formwork is set There is a bent cooling channel, the bottom of the water delivery shell is provided with a water outlet hole, and the water outlet hole is connected to the cooling channel, the water outlet of the water pump is connected to a water delivery pipe, and one end of the water delivery pipe is connected to the One side of the water transfer shell.

Preferably, the top of the top plate is fixedly connected with a joint, and the joint is provided with a card slot.

Preferably, the bottom of the template is fixedly connected with a plurality of connecting guide posts, the bottom of the template is provided with a base, and the connecting guide posts pass through the top of the base.

Preferably, fixing rings are fixedly connected to the exterior of the top board, the template and the base.

Preferably, the top of the top plate is provided with a plurality of threaded holes, and locking bolts are connected in the threaded holes.

Preferably, a water outlet pipe communicates with the outside of the water transfer shell, and one end of the water outlet pipe is located outside the template.

Compared with prior art, the beneficial effect of the present invention is:

1. When the present invention is used, the top plate is driven to move downward by external equipment. During the filler injection molding process, the injection molding raw materials flow into the cavity and the square groove, and the raw material will form a relatively narrow cavity in the depression at the junction of the cavity and the square groove. After waiting for cooling and forming, lift the top plate upwards. When the L-shaped plate loses the pressing force, it will be lifted upwards under the action of the first spring, and drive the pressure bar to move upwards. The formed parts in the cavity and square groove Carry out the ejection operation, and can not directly contact the part body during ejection, reducing the wear on the surface of the part when the part is ejected;

2. When the top plate moves upward, the square tube will continue to abut against the concave top of the connection between the cavity and the square groove under the action of the second spring until the pressing rod pushes out the part upwards, and the connection point after the part is cooled and formed moves to Press the conical protrusion in the groove of the cylinder to break under force, so that the invention can automatically eject the part after the part is integrally formed by injection molding, and at the same time, the excess edge material can be automatically broken when the part is taken out, so that the integrity of the part can be guaranteed during production .

Description of drawings

Fig. 1 is the structural representation of support buckle injection mold of the present invention;

Fig. 2 is the structural representation of formwork in support buckle injection mold of the present invention;

Fig. 3 is the sectional structure schematic diagram of formwork and top plate in support buckle injection mold of the present invention;

Fig. 4 is the structural representation of L-shaped plate and guide plate in the supporting buckle injection mold of the present invention;

Fig. 5 is the schematic structural view of the square pipe and the pressing cylinder in the support buckle injection mold of the present invention;

FIG. 6 is a schematic diagram of the enlarged structure of part A in FIG. 2 of the present invention.

In the figure: 1. joint; 2. card slot; 3. locking bolt; 4. water pump; 5. outlet pipe; 6. fixed ring; 8. oil delivery pipe; 9. base; 10. formwork; Injection channel; 13. Connecting guide post; 14. Positioning hole; 15. Water delivery pipe; 16. Water delivery shell; 17. Cooling channel; 18. L-shaped plate; 19. First spring; 20. Heating channel; 21. Guide Plate; 22, threaded hole; 23, pressing rod; 24, cavity; 25, square groove; 26, U-shaped cavity; 27, positioning guide post; 28, second spring; 29, pressing plate; 30, wire groove; 31. Square tube; 32. Press cylinder; 33. Groove; 34. Tapered protrusion.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-Fig. 6, the embodiment of the present invention provides a supporting buckle injection mold, including: a top plate 11, a component injection mechanism, an integral ejection mechanism, and a cooling and heating mechanism.

Wherein, the bottom of the top plate 11 is provided with a template 10, and the bottom of the top plate 11 is fixedly connected with a pressing plate 29;

Wherein, the parts injection molding mechanism is installed on the template 10, and the parts injection molding mechanism includes a pressing plate 29, which is fixedly connected to the bottom of the top plate 11, and the bottom of the pressing plate 29 and the top of the template 10 are all provided with a cavity 24, and the inside of the top plate 11 An injection channel 12 is provided, one end of the injection channel 12 is located outside the top plate 11, the other end of the injection channel 12 is located on the inner wall of the cavity 24, the top of the template 10 is provided with a plurality of positioning holes 14, and the bottom of the top plate 11 is fixedly connected with multiple A positioning guide post 27, the positioning guide post 27 is slidably installed in the inside of the positioning hole 14. During use, the top plate 11 is driven to move downward by an external device, so that the bottom of the pressing plate 29 and the cavity 24 on the top of the template 10 overlap, and pass through the injection channel 12. Fill the cavity 24 and form the supporting buckle parts by injection molding. During this process, the top plate 11 descends and presses the L-shaped plate 18, so that the L-shaped plate 18 moves downward in the guide plate 21 in the U-shaped cavity 26, driving one side The pressing rod 23 descends from the square groove 25 into the U-shaped cavity 26, and at the same time, the square tube 31 and the pressing cylinder 32 move downwards to abut against the concave top of the connection between the cavity 24 and the square groove 25. , the injection molding raw material flows into the cavity 24 and the square groove 25, and the raw material will form a relatively narrow connection point in the depression at the junction of the cavity 24 and the square groove 25. After waiting for cooling and molding, the top plate 11 is lifted upwards, and the L-shaped plate 18 is lifted upwards under the action of the first spring 19 when the pressing force is lost, and drives the pressing bar 23 to move upwards, and the parts formed in the cavity 24 and the square groove 25 are ejected.

Wherein, the integral ejection mechanism is installed on the top of the formwork 10, and the integral ejection mechanism includes a plurality of square grooves 25 symmetrically opened on the top of the formwork 10, and one side of the opening of the square groove 25 communicates with one side of the opening of the cavity 24. , and the connection is in a concave shape, the inside of the template 10 is symmetrically provided with a plurality of U-shaped cavities 26, the inner wall of the U-shaped cavity 26 is fixedly connected with a guide plate 21, the outside of the guide plate 21 is provided with a chute, the guide plate 21 An L-shaped plate 18 is slidably installed in the chute, and the top of the L-shaped plate 18 runs through the inside of the formwork 10. One side of the L-shaped plate 18 is fixedly connected with a pressure rod 23, and the top of the pressure rod 23 runs through the inside of the formwork 10. The bottom of the rod 23 is fixedly connected with the first spring 19, and one end of the bottom of the first spring 19 is fixedly connected to the inner bottom of the U-shaped cavity 26, and is located inside the square groove 25, and the bottom of the pressing plate 29 is symmetrically provided with a plurality of wire grooves 30, a square tube 31 is slidably installed in the trunking 30, the top of the square tube 31 is fixedly connected with a second spring 28, the top end of the second spring 28 is fixedly connected to the inner top of the trunking 30, and the bottom end of the square tube 31 is fixed Connected with a pressing cylinder 32, the bottom of the pressing cylinder 32 is provided with a groove 33, and a tapered protrusion 34 is fixedly connected in the groove 33, when the top plate 11 moves upwards, the square tube 31 will continue under the action of the second spring 28. It abuts against the concave top of the connection between the cavity 24 and the square groove 25 until the pressing rod 23 pushes out the part upwards. force fracture, so that the invention can automatically eject the parts after the parts are integrally formed by injection molding, and the invention can not directly contact the body of the parts when ejecting, reducing the wear on the surface of the parts when the parts are ejected, and at the same time, it is unnecessary to take out the parts The edge material can be broken automatically, so that the integrity of the part can be guaranteed when it is produced.

Wherein, the cooling and heating mechanism is installed inside the formwork 10, the cooling and heating mechanism includes two oil delivery pipes 8, and the two oil delivery pipes 8 are symmetrically embedded on one side of the formwork 10, and the inside of the formwork 10 is provided with a curved heating channel 20 for heating The two ends of passage 20 are connected with two oil delivery pipes 8, and water pump 4 is installed on one side of formwork 10, and two water delivery shells 16 are symmetrically installed on the top of formwork 10, and the inside of water delivery shell 16 is hollow shape, and the inside of formwork 10 A curved cooling passage 17 is provided inside, and a water outlet hole is provided at the bottom of the water delivery shell 16, and the water outlet hole communicates with the cooling passage 17. The water outlet of the water pump 4 is connected with a water delivery pipe 15, and one end of the water delivery pipe 15 is connected to On one side of the water transfer shell 16, during the injection molding operation, the oil transfer pipe 8 can be connected to the external heat transfer oil delivery equipment, and the heat transfer oil can be used to circulate in the heating channel 20 to increase the temperature. When the temperature is too high, the water pump 4 can be used to Extract the external cooling liquid, input the cooling liquid into the water transfer shell 16 through the water delivery pipe 15, use the water outlet hole at the bottom of the water transfer case 16 to evenly circulate into the cooling channel 17, and use the cooling channel 17 to realize the function of lowering the temperature, wherein, A water outlet pipe 5 is communicated with the outside of the water delivery shell 16 , and one end of the water outlet pipe 5 is located outside the formwork 10 , and the circulated coolant can be discharged through the water outlet pipe 5 .

As shown in Figures 1-6, the top of the top plate 11 is fixedly connected with a joint 1, and the joint 1 is provided with a card slot 2, and the external lifting drive device is connected and fixed through the joint 1 and the card slot 2, so as to realize the lifting drive of the top plate 11 The bottom of the template 10 is fixedly connected with a plurality of connecting guide pillars 13, the bottom of the template 10 is provided with a base 9, the connecting guide pillars 13 run through the top of the base 9, and the connecting guide pillars 13 can run through different numbers and heights of the base 9 when in use , realize the height control of the bottom of the mold; the top plate 11, the template 10 and the base 9 are all fixedly connected with the fixing ring 6, and the fixing ring 6 can facilitate the lifting of the top plate 11, the template 10 and the base 9; in order to improve the distance between the top plate 11 and the external drive equipment The top of the top plate 11 is provided with a plurality of threaded holes 22, the threaded holes 22 are connected with locking bolts 3, and the locking bolts 3 can pass through the connecting plate of the external drive equipment and connect with the threaded holes 22 on the top plate 11 .

According to the above-mentioned technical solution, the working steps of this solution are summarized and combed: when the present invention is used, the top plate 11 is driven downward by external equipment, so that the bottom of the pressing plate 29 and the cavity 24 at the top of the template 10 overlap, and the cavity 24 is filled through the injection channel 12, Utilize injection molding to form the supporting buckle parts. In this process, the top plate 11 descends and presses the L-shaped plate 18, so that the L-shaped plate 18 moves downward in the guide plate 21 in the U-shaped cavity 26, and drives the pressing rod 23 on one side to move from the square The groove 25 descends into the U-shaped cavity 26, and at the same time, the square tube 31 and the pressing cylinder 32 move downward to abut against the concave top of the connection between the cavity 24 and the square groove 25. During the filler injection molding process, the injection molding raw materials flow to The cavity 24 and the square groove 25, and the raw material will form a relatively narrow connection point in the depression at the junction of the cavity 24 and the square groove 25. After waiting for cooling and forming, the top plate 11 is lifted upward, and the L-shaped plate 18 loses the pressing force At the same time, it is lifted upwards under the action of the first spring 19, and drives the pressing rod 23 to move upwards, and the parts formed in the cavity 24 and the square groove 25 are ejected. At the same time, when the top plate 11 moves upwards, the square tube 31 Under the action of the second spring 28, it will continue to abut against the concave top of the connection between the cavity 24 and the square groove 25 until the pressure rod 23 pushes out the component upwards, and the connection point after the component is cooled and formed moves to the groove of the pressing cylinder 32 The conical protrusion 34 in 33 is fractured by force, so that the present invention can automatically eject the part after the integral molding of the part injection molding, and the present invention can not directly contact the part body when ejecting, reducing the impact on the part surface when ejecting the part. At the same time, the excess edge material can be automatically broken when the part is taken out, so that the integrity of the part can be guaranteed during production;

During the injection molding operation, the oil delivery pipe 8 can be connected to the external heat-conducting oil delivery equipment, and the heat-conducting oil can be used to circulate in the heating channel 20 to increase the temperature. It is input into the water delivery shell 16 through the water delivery pipe 15, and evenly circulated into the cooling channel 17 by using the water outlet hole at the bottom of the water delivery box 16, so that the present invention can control the temperature without directly contacting the cold and heat sources during the injection molding process of the parts , using temperature control to improve the quality of parts after molding.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art. Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. A support buckle injection mold, comprising top plate (11), component injection mechanism, integral ejection mechanism, cooling and heating mechanism, is characterized in that: The bottom of the top plate (11) is provided with a template (10), and the bottom of the top plate (11) is fixedly connected with a pressing plate (29); The parts injection molding mechanism is installed on the template (10), and the parts injection molding mechanism is used for injection molding the supporting buckle parts; The integral ejection mechanism is installed on the top of the template (10), and the integral ejection mechanism is used to support the integral demoulding and rough edge bending operations of the buckle parts after forming; The cooling and heating mechanism is installed inside the template (10), and the cooling and heating mechanism is used for temperature control in the injection molding process. 2. A support buckle injection mold according to claim 1, characterized in that: the component injection mechanism includes a pressing plate (29), and the pressing plate (29) is fixedly connected to the bottom of the top plate (11), The bottom of the pressing plate (29) and the top of the template (10) are all provided with a cavity (24), and the inside of the top plate (11) is provided with an injection channel (12), and the injection channel (12) One end is located outside the top plate (11), the other end of the injection channel (12) is located on the inner wall of the cavity (24), and the top of the template (10) is provided with a plurality of positioning holes (14), A plurality of positioning guide posts (27) are fixedly connected to the bottom of the top plate (11), and the positioning guide posts (27) are slidably installed inside the positioning hole (14). 3. A supporting buckle injection mold according to claim 2, characterized in that: the integral ejection mechanism includes a plurality of square grooves (25) symmetrically opened on the top of the template (10), and the square grooves One side of the opening of (25) communicates with one side of the opening of the cavity (24), and the connection is in a concave shape, and the inside of the template (10) is symmetrically provided with a plurality of U-shaped cavities (26 ), the inner wall of the U-shaped cavity (26) is fixedly connected with a guide plate (21), the outside of the guide plate (21) is provided with a chute, and the chute of the guide plate (21) is slidably installed with L-shaped plate (18), the top of the L-shaped plate (18) runs through the inside of the template (10), and one side of the L-shaped plate (18) is fixedly connected with a pressure rod (23), the pressure The top of the rod (23) runs through the inside of the template (10), the bottom of the pressure rod (23) is fixedly connected with a first spring (19), and one end of the bottom of the first spring (19) is fixedly connected to the The inner bottom of the U-shaped cavity (26), and is located in the inside of the square groove (25), the bottom of the pressing plate (29) is symmetrically provided with a plurality of wire grooves (30), and the wire grooves (30) A square pipe (31) is installed slidingly inside, and a second spring (28) is fixedly connected to the top of the square pipe (31), and one end of the top of the second spring (28) is fixedly connected to the wire groove (30) The inner top of the square tube (31) is fixedly connected with a pressing cylinder (32) at one end of the bottom, and the bottom of the pressing cylinder (32) is provided with a groove (33), and the groove (33) is fixed inside Connected with conical projections (34). 4. A supporting buckle injection mold according to claim 1, characterized in that: the cooling and heating mechanism includes two oil delivery pipes (8), and the two oil delivery pipes (8) are symmetrically embedded in the template (10 ), the inside of the template (10) is provided with a curved heating channel (20), and the two ends of the heating channel (20) communicate with the two oil delivery pipes (8), and the template One side of (10) is equipped with a water pump (4), and the top of the template (10) is symmetrically equipped with two water transfer shells (16), the inside of the water transfer shell (16) is hollow, and the template The inside of (10) is provided with a curved cooling passage (17), and the bottom of the water transfer shell (16) is provided with a water outlet hole, and the water outlet hole communicates with the cooling passage (17), and the water pump ( 4) The water outlet is connected to a water delivery pipe (15), and one end of the water delivery pipe (15) is connected to one side of the water delivery shell (16). 5. A support buckle injection mold according to claim 1, characterized in that: the top of the top plate (11) is fixedly connected with a joint (1), and the joint (1) is provided with a card slot (2) . 6. A support buckle injection mold according to claim 1, characterized in that: the bottom of the template (10) is fixedly connected with a plurality of connection guide posts (13), and the bottom of the template (10) is provided with The base (9), the connecting guide post (13) runs through the top of the base (9). 7. A support buckle injection mold according to claim 6, characterized in that: the outside of the top plate (11), the template (10) and the base (9) are fixedly connected with a fixed ring (6 ). 8. A supporting buckle injection mold according to claim 1, characterized in that: the top of the top plate (11) is provided with a plurality of threaded holes (22), and the threaded holes (22) are connected with locking bolts (3). 9. A supporting buckle injection mold according to claim 4, characterized in that: the outside of the water delivery shell (16) is communicated with a water outlet pipe (5), and one end of the water outlet pipe (5) is located at the The exterior of the formwork (10).

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