Supporting buckle injection mold

Abstract

The application discloses a support buckle injection mold, which comprises a top plate, a part injection mechanism, a whole ejection mechanism and a cooling and heating mechanism. The bottom of the top plate is provided with a mold plate, and the bottom of the top plate is fixedly connected with a pressing plate. The part injection mechanism is installed on the mold plate and is used for injection molding of the support buckle part. The whole ejection mechanism is installed on the top of the mold plate. When the application is used, the top plate is driven to move downward by an external device. In the filling injection process, the injection raw material flows into the cavity and the square groove, and the raw material forms a relatively narrow connecting point in the recess at the connecting position of the cavity and the square groove. After waiting for cooling and molding, the top plate is lifted upward. When the L-shaped plate loses the pressing force, it is lifted upward under the action of the first spring and drives the pressing rod to move upward, so that the parts molded in the cavity and the square groove are ejected, and the parts are not directly contacted during ejection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of part injection mold, in particular to a support buckle injection mold. BACKGROUND

[0002] The injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size. Injection molding is a processing method used when mass producing some complex-shaped parts. Specifically, it refers to injecting molten plastic into a mold cavity under high pressure by an injection molding machine, and then obtaining a shaped product after cooling and solidification. Injection molds are divided into two types: thermosetting plastic molds and thermoplastic plastic molds, according to the molding characteristics; and divided into transfer molds, blow molds, casting molds, thermoforming molds, hot pressing molds (compression molding molds), injection molds, etc., according to the molding process.

[0003] However, the existing support buckle part injection mold technology still has some problems. In actual use, in order to facilitate the removal of the molded part, a ejector rod is often arranged on the inner wall of the cavity. After cooling, the part is ejected by using the pushing force. Although the part is conveniently and quickly ejected in the cavity, the part is damaged when it is ejected before it reaches the cooling temperature, resulting in low quality of the finished product. In addition, after injection, excess edge material is generated at the edge of the part surface, which needs to be polished or manually removed. SUMMARY

[0004] The present application aims to provide a support buckle injection mold to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a support buckle injection mold, comprising a top plate, a part injection mechanism, a whole ejection mechanism, and a cooling and heating mechanism.

[0006] The bottom of the top plate is provided with a mold plate, and the bottom of the top plate is fixedly connected with a pressing plate.

[0007] The part injection mechanism is installed on the mold plate, and is used for injection molding of the support buckle part.

[0008] The whole ejection mechanism is installed on the top of the mold plate, and is used for whole demolding and burr bending operation of the support buckle part after molding.

[0009] The cooling and heating mechanism is installed inside the mold plate, and is used for temperature control during injection.

[0010] Preferably, the component injection molding mechanism includes a pressure plate, which is fixedly connected to the bottom of the top plate. Both the bottom of the pressure plate and the top of the template are provided with cavities. The top plate has an injection channel inside, with one end of the injection channel located outside the top plate and the other end located inside the cavity. The top of the template is provided with multiple positioning holes, and the bottom of the top plate is fixedly connected with multiple positioning guide posts, which are slidably installed inside the positioning holes.

[0011] Preferably, the overall ejection mechanism includes multiple symmetrically formed square grooves on the top of the template. One side of the opening of each square groove is connected to one side of the opening of the cavity, and the connection is recessed. Multiple U-shaped cavities are symmetrically arranged inside the template. A guide plate is fixedly connected to the inner wall of each U-shaped cavity. A sliding groove is provided on the outside of the guide plate. An L-shaped plate is slidably installed in the sliding groove of the guide plate. The top of the L-shaped plate penetrates the interior of the template. A pressure rod is fixedly connected to one side of the L-shaped plate. The top of the pressure rod penetrates the interior of the template. A first spring is fixedly connected to the bottom of the pressure rod. One bottom end of the first spring is fixedly connected to the inner bottom of the U-shaped cavity and located inside the square groove. Multiple grooves are symmetrically arranged at the bottom of the pressure plate. A square tube is slidably installed in each groove. A second spring is fixedly connected to the top of the square tube. One top end of the second spring is fixedly connected to the inner top of the groove. A pressing cylinder is fixedly connected to the bottom of the square tube. A groove is provided at the bottom of the pressing cylinder, and a conical protrusion is fixedly connected in the groove.

[0012] Preferably, the cooling and heating mechanism includes two oil supply pipes, which are symmetrically embedded on one side of the template. The template has a bent heating channel inside, and both ends of the heating channel are connected to the two oil supply pipes. A water pump is installed on one side of the template. Two water supply shells are symmetrically installed on the top of the template. The interior of the water supply shell is hollow. The template has a bent cooling channel inside. The bottom of the water supply shell has a water outlet hole, which is connected to the cooling channel. The outlet of the water pump is connected to a water supply pipe, and one end of the water supply pipe is connected to one side of the water supply shell.

[0013] Preferably, a connector is fixedly connected to the top of the top plate, and the connector is provided with a slot.

[0014] Preferably, the bottom of the template is fixedly connected with a plurality of connecting guide posts, and the bottom of the template is provided with a base, the connecting guide posts passing through the top of the base.

[0015] Preferably, the top plate, the template, and the base are all fixedly connected to the outside with retaining rings.

[0016] Preferably, the top of the top plate is provided with multiple threaded holes, and locking bolts are connected in the threaded holes.

[0017] Preferably, the water supply shell is connected to a water outlet pipe, and one end of the water outlet pipe is located outside the template.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When using this invention, the top plate is driven to move downward by an external device. During the filler injection molding process, the injection material flows into the cavity and square groove, and the material will form a relatively narrow connection point in the depression at the connection between the cavity and the square groove. After cooling and molding, the top plate is lifted upward. When the L-shaped plate loses the pressing pressure, it is lifted upward by the action of the first spring and drives the pressure rod to move upward to eject the molded part in the cavity and square groove. It can also avoid direct contact with the part body during ejection, reducing the wear on the part surface during ejection.

[0020] 2. When the top plate moves upward, the square tube will continuously abut against the recessed top of the connection between the cavity and the square groove under the action of the second spring until the pressure rod pushes the part upward. After the part is cooled and formed, the connection point moves to the conical protrusion in the groove of the pressing cylinder and breaks under force. This invention can automatically eject the part after the part is injection molded as a whole. 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. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the support buckle injection mold of the present invention;

[0022] Figure 2 This is a schematic diagram of the template structure in the injection mold of the support buckle of the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of the template and top plate in the support buckle injection mold of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the L-shaped plate and guide plate in the injection mold of the support buckle of the present invention;

[0025] Figure 5 This is a schematic diagram of the square tube and pressing cylinder in the injection mold of the support buckle of the present invention;

[0026] Figure 6 For the present invention Figure 2 A magnified structural diagram of part A in the middle.

[0027] In the diagram: 1. Connector; 2. Slot; 3. Locking bolt; 4. Water pump; 5. Water outlet pipe; 6. Fixing ring; 8. Oil supply pipe; 9. Base; 10. Template; 11. Top plate; 12. Injection channel; 13. Connecting guide post; 14. Positioning hole; 15. Water supply pipe; 16. Water supply shell; 17. Cooling channel; 18. L-shaped plate; 19. First spring; 20. Heating channel; 21. Guide plate; 22. Threaded hole; 23. Pressure rod; 24. Cavity; 25. Square groove; 26. U-shaped cavity; 27. Positioning guide post; 28. Second spring; 29. ​​Pressure plate; 30. Wire groove; 31. Square tube; 32. Pressing cylinder; 33. Groove; 34. Conical protrusion. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-6 The present invention provides a support buckle injection mold, including: a top plate 11, a component injection mechanism, an integral ejection mechanism, and a cooling and heating mechanism.

[0030] The bottom of the top plate 11 is provided with a template 10, and a pressure plate 29 is fixedly connected to the bottom of the top plate 11.

[0031] The component injection molding mechanism is mounted on the template 10. The mechanism includes a pressure plate 29, which is fixedly connected to the bottom of the top plate 11. Both the bottom of the pressure plate 29 and the top of the template 10 have cavities 24. The top plate 11 has an injection channel 12 inside, with one end located outside the top plate 11 and the other end located on the inner wall of the cavity 24. The top of the template 10 has multiple positioning holes 14, and the bottom of the top plate 11 is fixedly connected to multiple positioning guide posts 27. The positioning guide posts 27 are slidably installed inside the positioning holes 14. In use, the top plate 11 is driven downwards by an external device, causing the bottom of the pressure plate 29 and the cavity 24 at the top of the template 10 to overlap. The cavity 24 is filled through the injection channel 12, forming the support buckle component through injection molding. During this process, the top plate 11 descends and presses down on the L-shaped plate 18, causing the L-shaped plate 18 to move downward in the guide plate 21 within the U-shaped cavity 26. This causes the pressure rod 23 on one side to descend from the square groove 25 into the U-shaped cavity 26. Simultaneously, the square tube 31 and the pressing cylinder 32 move downward and abut against the top of the recess at the connection between the cavity 24 and the square groove 25. During the filler injection molding process, the injection molding material flows into the cavity 24 and the square groove 25, and the material forms a relatively narrow connection point in the recess at the connection between the cavity 24 and the square groove 25. After cooling and molding, the top plate 11 is lifted upward. When the pressing pressure is lost, the L-shaped plate 18 is lifted upward by the action of the first spring 19, and the pressure rod 23 moves upward, ejecting the molded part from the cavity 24 and the square groove 25.

[0032] The overall ejection mechanism is installed on the top of the template 10. The overall ejection mechanism includes multiple symmetrically arranged square grooves 25 on the top of the template 10. One side of the opening of the square groove 25 is connected to one side of the opening of the cavity 24, and the connection point is recessed. Multiple U-shaped cavities 26 are symmetrically arranged inside the template 10. A guide plate 21 is fixedly connected to the inner wall of the U-shaped cavity 26. A sliding groove is provided on the outside of the guide plate 21. An L-shaped plate 18 is slidably installed in the sliding groove of the guide plate 21. The top of the L-shaped plate 18 penetrates the interior of the template 10. A pressure rod 23 is fixedly connected to one side of the L-shaped plate 18. The top of the pressure rod 23 penetrates the interior of the template 10. A first spring 19 is fixedly connected to the bottom of the pressure rod 23. One end of the bottom of the first spring 19 is fixedly connected to the inner bottom of the U-shaped cavity 26 and located inside the square groove 25. Multiple wire grooves 30 are symmetrically arranged at the bottom of the pressure plate 29. Square grooves 25 are slidably installed in the wire grooves 30. The top of the square tube 31 is fixedly connected to a second spring 28. One end of the top of the second spring 28 is fixedly connected to the inner top of the groove 30. One end of the bottom of the square tube 31 is fixedly connected to a pressing cylinder 32. The bottom of the pressing cylinder 32 is provided with a groove 33, and a conical protrusion 34 is fixedly connected in the groove 33. When the top plate 11 moves upward, the square tube 31 will continuously abut against the recessed top of the connection between the cavity 24 and the square groove 25 under the action of the second spring 28 until the pressure rod 23 pushes the part upward. After the part is cooled and formed, the connection point moves to the conical protrusion 34 in the groove 33 of the pressing cylinder 32 and breaks under force. This invention can automatically eject the part after the part is injection molded as a whole. Moreover, this invention can avoid direct contact with the part body when ejecting, reducing the wear 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 the production of the part.

[0033] The cooling and heating mechanism is installed inside the template 10. The mechanism includes two oil pipes 8 symmetrically embedded on one side of the template 10. The template 10 has a bent heating channel 20 inside, with both ends connected to the two oil pipes 8. A water pump 4 is installed on one side of the template 10. Two water supply shells 16 are symmetrically installed on the top of the template 10. The interior of each water supply shell 16 is hollow. The template 10 has a bent cooling channel 17 inside. A water outlet is located at the bottom of each water supply shell 16 and is connected to the cooling channel 17. The outlet of the water pump 4 is connected to a water supply pipe 15. One end of the oil pipe 8 is connected to one side of the water supply shell 16. During the injection molding operation, the oil supply pipe 8 can be connected to the external heat transfer oil delivery equipment. The heat transfer oil is used to circulate in the heating channel 20 to increase the temperature. When the temperature is too high, the water pump 4 is used to draw external coolant and input the coolant into the water supply shell 16 through the water supply pipe 15. The coolant is evenly circulated into the cooling channel 17 through the water outlet hole at the bottom of the water supply shell 16. The cooling channel 17 is used to reduce the temperature. The water supply shell 16 is connected to the outside of the water outlet pipe 5. One end of the water outlet pipe 5 is located outside the template 10. The coolant after circulation can be discharged outward through the water outlet pipe 5.

[0034] like Figures 1-6 As shown, a connector 1 is fixedly connected to the top of the top plate 11, and a slot 2 is provided on the connector 1. The external lifting drive device is connected and fixed through the connector 1 and the slot 2, thereby realizing the lifting drive of the top plate 11. Multiple connecting guide pillars 13 are fixedly connected to the bottom of the template 10, and a base 9 is provided at the bottom of the template 10. The connecting guide pillars 13 penetrate through the top of the base 9. When in use, the connecting guide pillars 13 can penetrate through different numbers and heights of the base 9 to 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 to the outside of the fixing rings 6. The fixing rings 6 can facilitate the lifting of the top plate 11, the template 10 and the base 9. In order to improve the connection strength between the top plate 11 and the external drive device, multiple threaded holes 22 are provided on the top of the top plate 11. Locking bolts 3 are connected in the threaded holes 22. The locking bolts 3 can penetrate through the connecting plate of the external drive device and connect to the threaded holes 22 on the top plate 11.

[0035] Based on the above technical solution, the working steps of this solution are summarized as follows: When using this invention, the top plate 11 is driven downward by an external device, so that the bottom of the pressure plate 29 and the top of the template 10 cavity 24 coincide. The cavity 24 is filled through the injection channel 12, and the support buckle component is formed 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 the pressure rod 23 on one side to descend from the square groove 25 into the U-shaped cavity 26. At the same time, the square tube 31 and the pressing cylinder 32 move downward and abut against the top of the recess at the connection between the cavity 24 and the square groove 25. During the filling injection molding process, the injection molding material flows into the cavity 24 and the square groove 25, and the material will form a relatively narrow connection point in the recess at the connection between the cavity 24 and the square groove 25, waiting for cooling and molding. Then, the top plate 11 is raised upward. When the pressing pressure is lost, the L-shaped plate 18 is raised upward by the action of the first spring 19, and drives the pressure rod 23 to move upward, performing an ejection operation on the molded part in the cavity 24 and the square groove 25. At the same time, when the top plate 11 moves upward, the square tube 31 will continuously abut against the top of the recess at the connection between the cavity 24 and the square groove 25 under the action of the second spring 28 until the pressure rod 23 ejects the part upward. The connection point of the part after cooling and molding moves to the conical protrusion 34 in the groove 33 of the pressing cylinder 32 and breaks under force. This invention can automatically eject the part after the part is injection molded as a whole. In addition, this invention can avoid direct contact with the part body during ejection, reducing the wear on the part surface during ejection. 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.

[0036] During injection molding, the oil supply pipe 8 can be connected to an external heat transfer oil supply device, and the heat transfer oil circulates in the heating channel 20 to raise the temperature. When the temperature is too high, the water pump 4 draws external coolant and inputs the coolant into the water supply shell 16 through the water supply pipe 15. The coolant then flows evenly into the cooling channel 17 through the water outlet at the bottom of the water supply shell 16. This invention enables temperature control during the injection molding process of the part without direct contact with the heat source, thereby improving the quality of the part after molding.

[0037] All parts not described in this invention are the same as or can be implemented using existing technology. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support buckle injection mold, comprising a top plate (11), a component injection mechanism, an integral ejection mechanism, and a cooling and heating mechanism, characterized in that: The bottom of the top plate (11) is provided with a template (10), and a pressure plate (29) is fixedly connected to the bottom of the top plate (11); The component injection molding mechanism is installed on the template (10) and is used to injection mold the support buckle component; The overall ejection mechanism is installed on the top of the template (10). The overall ejection mechanism is used to support the overall demolding of the buckle component after it is formed and the burr bending operation. The cooling and heating mechanism is installed inside the template (10) and is used for temperature control during the injection molding process; The component injection molding mechanism includes a pressure plate (29), which is fixedly connected to the bottom of the top plate (11). The bottom of the pressure plate (29) and the top of the template (10) are both provided with cavities (24). The top plate (11) is provided with an injection channel (12). One end of the injection channel (12) is located outside the top plate (11), and the other end of the injection channel (12) is located inside the cavity (24). The top of the template (10) is provided with multiple positioning holes (14). The bottom of the top plate (11) is fixedly connected with multiple positioning guide posts (27), which are slidably installed inside the positioning holes (14). The overall ejection mechanism includes multiple square grooves (25) symmetrically formed on the top of the template (10). One side of the opening of each square groove (25) is connected to one side of the opening of the cavity (24), and the connection is recessed. Multiple U-shaped cavities (26) are symmetrically arranged inside the template (10). A guide plate (21) is fixedly connected to the inner wall of each U-shaped cavity (26). A sliding groove is provided on the outside of the guide plate (21). An L-shaped plate (18) is slidably installed in the sliding groove of the guide plate (21). The top of the L-shaped plate (18) penetrates the interior of the template (10). A pressure rod (23) is fixedly connected to one side of the L-shaped plate (18), and the top of the pressure rod (23) penetrates the interior of the template (10). The bottom of the pressure rod (23) is fixedly connected to a first spring (19). One end of the bottom of the first spring (19) is fixedly connected to the bottom of the U-shaped cavity (26) and located inside the square groove (25). The bottom of the pressure plate (29) is symmetrically provided with multiple wire grooves (30). A square tube (31) is slidably installed in the wire groove (30). The top of the square tube (31) is fixedly connected to a second spring (28). One end of the top of the second spring (28) is fixedly connected to the top of the wire groove (30). One end of the bottom of the square tube (31) is fixedly connected to a pressing cylinder (32). The bottom of the pressing cylinder (32) is provided with a groove (33), and a conical protrusion (34) is fixedly connected in the groove (33).

2. The support buckle injection mold according to claim 1, characterized in that: The cooling and heating mechanism includes two oil pipes (8), which are symmetrically embedded on one side of the template (10). The template (10) has a bent heating channel (20) inside, and the two ends of the heating channel (20) are connected to the two oil pipes (8). A water pump (4) is installed on one side of the template (10). Two water supply shells (16) are symmetrically installed on the top of the template (10). The inside of the water supply shell (16) is hollow. The template (10) has a bent cooling channel (17) inside. The bottom of the water supply shell (16) has a water outlet hole, which is connected to the cooling channel (17). The outlet of the water pump (4) is connected to a water supply pipe (15), and one end of the water supply pipe (15) is connected to one side of the water supply shell (16).

3. The support buckle injection mold according to claim 1, characterized in that: The top of the top plate (11) is fixedly connected to a connector (1), and the connector (1) is provided with a slot (2).

4. The support buckle injection mold according to claim 1, characterized in that: The bottom of the template (10) is fixedly connected with a plurality of connecting guide posts (13), and the bottom of the template (10) is provided with a base (9), and the connecting guide posts (13) penetrate through the top of the base (9).

5. A support buckle injection mold according to claim 4, characterized in that: The top plate (11), the template (10) and the base (9) are all fixedly connected to the outside of a fixing ring (6).

6. The support 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 a locking bolt (3) is connected in the threaded holes (22).

7. A support buckle injection mold according to claim 2, characterized in that: The water supply shell (16) is connected to the outside of a water outlet pipe (5), one end of which is located outside the template (10).

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