Injection mold for popping injection molding substrate

Abstract

The utility model discloses an injection mold for ejecting an injection molding substrate, and particularly relates to the technical field of injection molds, the injection mold comprises a fixed mold base, a movable mold base is arranged on one side of the fixed mold base, a mold opening and closing control mechanism is arranged between the top of the movable mold base and the top of the fixed mold base, and a cavity is formed in the inner side wall of the middle of the fixed mold base; a molding block is arranged on the inner side wall of the middle of the movable mold base and located on the inner side of the cavity, an ejector rod is inserted in the middle of the molding block, one end of the ejector rod is located in the movable mold base and fixedly connected with a movable plate, a hydraulic cylinder is installed on the rear wall of the movable plate, and a groove is formed in the inner side wall of the top of the fixed mold base and located above the cavity. And a fixed plate is fixedly connected to the inner side wall of the movable mold base and located on the inner side of the groove. According to the utility model, after the injection molding substrate pops up, the discharge sliding table is conveniently adopted for carrying and guiding discharge, and the discharged injection molding substrate is buffered, so that the injection molding substrate is prevented from being damaged due to high collision strength between the injection molding substrate and a bottom structure due to direct sliding, and an operator can conveniently take out the injection molding substrate.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, more specifically, the utility model relates to injection mold of injection substrate ejection. BACKGROUND

[0002] Injection mold is the important component part of plastic injection molding machine (referred to as injection molding machine), is used to process thermoplastic or thermosetting plastic into various plastic parts, and injection molding process includes material delivery, melting, injection, cooling, opening mold and unloading and other links, after the cooling and setting of plastic parts, the mold needs to be opened, and then the plastic parts are taken out from the mold, and this process is unloading.

[0003] The ejection mode of the injection substrate after the injection molding of the injection mold generally adopts pneumatic or hydraulic mode to eject, and the injection substrate after ejection directly falls down, and for some brittle injection substrates, especially after the mold is opened, the injection substrate is still in an unstable state due to high heat, and directly falling down can easily cause deformation and damage of the injection substrate, therefore, the discharge structure after the ejection of the injection substrate needs to be improved. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an injection mold for ejection of injection substrate.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold for ejection of injection substrate, comprising a fixed mold base, a movable mold base is arranged on one side of the fixed mold base, an opening and closing mold control mechanism is arranged between the top of the movable mold base and the fixed mold base, a cavity is arranged on the inner side wall of the middle part of the fixed mold base, a modeling block is arranged on the inner side wall of the middle part of the movable mold base and located on the inner side of the cavity, a top rod is inserted into the middle part of the modeling block, an activity plate is fixedly connected to the inner part of one end of the top rod and located in the movable mold base, a hydraulic cylinder is mounted on the rear wall of the activity plate, a recess is arranged on the top inner side wall of the fixed mold base and located above the cavity, a fixed plate is fixedly connected to the inner side wall of the movable mold base and located on the inner side of the recess, a heat dissipation fan is mounted on the bottom of the fixed plate, a wiring hole is arranged on the outer side of the inner part of the movable mold base and close to the heat dissipation fan, and a discharge mechanism is arranged between the bottom of the movable mold base and the fixed mold base.

[0006] As a further improvement of the utility model technical scheme, the opening and closing mold control mechanism comprises a fixed seat fixedly connected to the top end of the fixed mold base and a screw nut seat fixedly connected to the top end of the movable mold base, a mounting top plate is fixedly connected to the top end of the fixed seat, a screw rod is connected to the inner side of the screw nut seat along the horizontal direction, a motor for driving the screw rod to rotate is fixedly mounted on the outer wall of the fixed seat, a plate body is connected to the other end of the screw rod and located on the bottom of the mounting top plate, and a bearing seat is mounted on the inner side wall of the plate body and corresponds to the end position of the screw rod.

[0007] As a further improvement of the utility model technical scheme, the inner side wall of the movable die holder is provided with a guide column in the horizontal direction near the four corners, the inner side wall of the fixed die holder is provided with a guide groove outside each guide column, the depth of the guide groove is greater than the length of the guide column, and the vertical section inner diameter of the guide groove is greater than the vertical section outer diameter of the guide column.

[0008] As a further improvement of the utility model technical scheme, the middle part of the fixed die holder is provided with an injection molding channel on one side near the cavity, and the inside of the fixed die holder is provided with a circulating cooling liquid channel outside the cavity.

[0009] As a further improvement of the utility model technical scheme, the inside of the movable die holder is provided with a movable cavity in the horizontal direction outside the movable plate, both ends of the movable plate are provided with a T-shaped clamping block, and both inner walls of the movable cavity are provided with a T-shaped sliding groove outside the T-shaped clamping block in the horizontal direction.

[0010] As a further improvement of the utility model technical scheme, the discharging mechanism comprises a discharging sliding table fixedly connected to the inner side wall of the movable die holder below the modeling block, the bottom inner side wall of the fixed die holder is provided with a recess cavity for the placement of the discharging sliding table, the bottom inner wall of the discharging sliding table is connected with a plurality of buffer plates, and the end of the buffer plate is connected with a spring in the inside of the discharging sliding table.

[0011] As a further improvement of the utility model technical scheme, the connection mode between the two ends of the buffer plate and the bottom inner wall of the mounting top plate and the outer wall of the spring is welding.

[0012] The utility model discloses the beneficial effects of:

[0013] 1. By setting the mold opening and closing control mechanism and the cooling fan, when using, the motor is controlled to run through the external control switch, drives the screw rod to rotate, thereby drives the screw nut seat to move in the horizontal direction, and then drives the movable die holder and the fixed die holder to open and close the mold, when controlling the mold closing, the inside of the cavity is injected through the injection molding channel, after injection molding, the cooling liquid is used to carry out preliminary cooling treatment in the circulating cooling liquid channel around the cavity, so that the injection molded part preliminarily forms a fixed shape, then the mold is opened, after opening the mold, the cooling treatment of the formed injection molded substrate is further carried out by controlling the cooling fan, the risk of scalding when taking out subsequently is reduced.

[0014] 2. By setting up a material discharge mechanism, the injection molded substrate is ejected and falls onto the material discharge slide, and gradually slides down to the bottom of the material discharge slide. The discharged injection molded substrate will not affect the subsequent mold closing and injection operation. Through the set buffer plate and spring, the injection molded substrate first contacts the buffer plate during the process of sliding to the bottom, and then the elasticity of the spring plays a buffering role, avoiding the large collision intensity between the direct sliding and the bottom structure, which would cause damage to the injection molded substrate. It also makes it convenient for the operator to remove the injection molded substrate. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the structure of this utility model in the mold-closed state.

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model in the mold-open state.

[0017] Figure 3 This is a schematic diagram of the installation structure of the discharge slide in this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure between the top rod and the movable plate in this utility model.

[0019] The attached diagram is labeled as follows: 1. Mounting top plate; 2. Fixed seat; 3. Fixed mold base; 4. Moving mold base; 5. Screw nut seat; 6. Screw; 7. Motor; 8. Cavity; 9. Molding block; 10. Ejector rod; 11. Movable plate; 12. Hydraulic cylinder; 13. Movable cavity; 14. Groove; 15. Fixed plate; 16. Cooling fan; 17. Wiring hole; 18. Injection channel; 19. Guide pillar; 20. Guide groove; 21. Discharge slide; 22. Cavity; 23. Buffer plate; 24. Spring; 111. T-shaped block; 131. T-shaped slide. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figures 1-4The injection mold for ejecting the injection substrate shown includes a fixed mold base 3, a movable mold base 4 on one side of the fixed mold base 3, an opening and closing control mechanism between the top of the movable mold base 4 and the fixed mold base 3, a cavity 8 on the inner side wall of the middle part of the fixed mold base 3, a molding block 9 on the inner side wall of the middle part of the movable mold base 4 inside the cavity 8, an ejector rod 10 inserted in the middle of the molding block 9, a movable plate 11 fixedly connected to one end of the ejector rod 10 inside the movable mold base 4, a hydraulic cylinder 12 installed on the rear wall of the movable plate 11, a groove 14 on the inner side wall of the top of the fixed mold base 3 above the cavity 8, a fixed plate 15 fixedly connected to the inner side wall of the movable mold base 4 inside the groove 14, a cooling fan 16 installed at the bottom of the fixed plate 15, a wiring hole 17 on the outer side of the movable mold base 4 near the cooling fan 16, and a material discharge mechanism between the bottom of the movable mold base 4 and the fixed mold base 3.

[0022] As attached Figures 1-2 As shown, the mold opening and closing control mechanism includes a fixed base 2 fixedly connected to the top of the fixed mold base 3 and a screw nut seat 5 fixedly connected to the top of the moving mold base 4. A mounting plate 1 is fixedly connected to the top of the fixed base 2. A screw 6 is connected to the inner side of the screw nut seat 5 in the horizontal direction. A motor 7 that drives the screw 6 to rotate is fixedly installed on the outer wall of the fixed base 2. A plate is connected to the bottom of the mounting plate 1 at the other end of the screw 6. A bearing seat is installed on the inner side wall of the plate corresponding to the end position of the screw 6, so that the motor 7 can be controlled to run and drive the screw 6 to rotate during use, thereby driving the screw nut seat 5 to move in the horizontal direction, and thus driving the moving mold base 4 and the fixed mold base 3 to perform mold opening and closing operations.

[0023] As attached Figures 1-3 As shown, guide posts 19 are provided horizontally on the inner sidewall of the moving mold base 4 near the four corners. Guide grooves 20 are provided on the inner sidewall of the fixed mold base 3 corresponding to the outer side of each guide post 19. The depth of the guide groove 20 is greater than the length of the guide post 19, and the inner diameter of the vertical section of the guide groove 20 is greater than the outer diameter of the vertical section of the guide post 19. This facilitates the horizontal guidance and limitation of the movement of the moving mold base 4, maintaining stability during mold opening and closing.

[0024] As attached Figures 1-2 As shown, an injection channel 18 is provided on the side of the fixed mold base 3 near the cavity 8, and a circulating coolant channel is provided inside the fixed mold base 3 on the outside of the cavity 8 to facilitate injection molding operation and cooling treatment after injection molding.

[0025] As attached Figures 1-2 and attached Figure 4As shown, the interior of the moving mold base 4 is provided with a movable cavity 13 in the horizontal direction corresponding to the exterior of the movable plate 11. Both ends of the movable plate 11 are provided with T-shaped locking blocks 111. The two inner walls of the movable cavity 13 are provided with T-shaped sliding grooves 131 in the horizontal direction corresponding to the exterior of the T-shaped locking blocks 111. This facilitates the restriction of the movement stroke of the movable plate 11 and the maintenance of stable movement in the horizontal direction, thereby driving the push rod 10 to maintain stable movement in the horizontal direction.

[0026] As attached Figures 1-3 As shown, the material discharge mechanism includes a material discharge slide 21 fixedly connected to the inner wall of the moving mold base 4 near the bottom of the molding block 9. The bottom inner wall of the fixed mold base 3 is provided with a cavity 22 for the material discharge slide 21 to be inserted. Several buffer plates 23 are connected to the bottom inner wall of the material discharge slide 21. The ends of the buffer plates 23 are located inside the material discharge slide 21 and are connected to springs 24. The connection between the two ends of the buffer plates 23 and the bottom inner wall of the mounting top plate 1 and the outer wall of the springs 24 is welded. The material discharge mechanism is designed to receive and guide the injection molding substrate that pops out after the mold is opened during use. The discharged injection molding substrate will not affect the subsequent mold closing and injection molding operation, and it is convenient for the operator to remove it.

[0027] Working principle: This utility model designs an injection mold for ejecting the injection substrate, the specific structure of which is shown in the attached instruction manual. Figures 1-4 As shown, in use, this technical solution uses an external control switch to control the motor 7 to rotate the lead screw 6, which in turn moves the lead screw nut seat 5 horizontally. This, in turn, drives the moving mold base 4 and the fixed mold base 3 to perform mold opening and closing operations. After mold closing, injection molding is performed into the cavity 8 through the injection channel 18. After injection molding, the external coolant is used for initial cooling through the circulating coolant channel around the cavity 8, allowing the injection molded part to initially form a fixed shape. Then, the mold is opened. After mold opening, the cooling fan 16 is controlled to perform air cooling on the molded injection base sheet. Then, the hydraulic cylinder 12 is controlled to push the movable plate 11 to move, which drives the ejector rod 10 to eject the injection molding substrate. Through the set discharge mechanism, the injection molding substrate falls on the discharge slide 21 after being ejected, and gradually slides to the bottom of the discharge slide 21. The discharged injection molding substrate will not affect the subsequent mold closing and injection operation. Through the set buffer plate 23 and spring 24, the injection molding substrate first contacts the buffer plate 23 during the process of sliding to the bottom, and then the elasticity of the spring 24 plays a buffering role, avoiding the large collision intensity between the direct slide and the bottom structure, which would cause damage to the injection molding substrate. It also makes it convenient for the operator to remove the injection molding substrate.

[0028] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection mold for ejecting an injection substrate, characterized in that: The system includes a fixed mold base (3), a movable mold base (4) on one side of the fixed mold base (3), an opening and closing control mechanism between the top of the movable mold base (4) and the fixed mold base (3), a cavity (8) on the inner wall of the middle part of the fixed mold base (3), a molding block (9) on the inner wall of the middle part of the movable mold base (4) inside the cavity (8), a push rod (10) inserted in the middle of the molding block (9), and a movable plate (11) fixedly connected to one end of the push rod (10) inside the movable mold base (4). A hydraulic cylinder (12) is installed on the rear wall of the movable plate (11). A groove (14) is provided on the top inner wall of the fixed mold base (3) above the cavity (8). A fixing plate (15) is fixedly connected to the inner wall of the movable mold base (4) inside the groove (14). A cooling fan (16) is installed at the bottom of the fixing plate (15). A wiring hole (17) is provided inside the movable mold base (4) near the outer side of the cooling fan (16). A material discharge mechanism is provided between the bottom of the movable mold base (4) and the fixed mold base (3).

2. The injection mold for ejecting the injection substrate according to claim 1, characterized in that: The mold opening and closing control mechanism includes a fixed seat (2) fixedly connected to the top of the fixed mold base (3) and a screw nut seat (5) fixedly connected to the top of the moving mold base (4). The top of the fixed seat (2) is fixedly connected to a mounting plate (1). The screw nut seat (5) is connected to a screw (6) in the horizontal direction on the inner side. The outer wall of the fixed seat (2) is fixedly installed with a motor (7) that drives the screw (6) to rotate. The bottom of the mounting plate (1) is connected to a plate at the other end of the screw (6). The inner side wall of the plate is equipped with a bearing seat at the end position of the screw (6).

3. The injection mold for ejecting the injection substrate according to claim 1, characterized in that: The inner wall of the moving mold base (4) is provided with guide posts (19) in the horizontal direction near the four corners. The inner wall of the fixed mold base (3) is provided with guide grooves (20) corresponding to the outside of each guide post (19). The depth of the guide groove (20) is greater than the length of the guide post (19), and the inner diameter of the vertical section of the guide groove (20) is greater than the outer diameter of the vertical section of the guide post (19).

4. The injection mold for ejecting the injection substrate according to claim 1, characterized in that: The fixed mold base (3) has an injection channel (18) on the side of the cavity (8) in the middle, and a circulating coolant channel is provided inside the fixed mold base (3) on the outside of the cavity (8).

5. The injection mold for ejecting the injection substrate according to claim 1, characterized in that: The interior of the moving mold base (4) is provided with a movable cavity (13) in the horizontal direction corresponding to the exterior of the movable plate (11). Both ends of the movable plate (11) are provided with T-shaped blocks (111). The two inner walls of the movable cavity (13) are provided with T-shaped grooves (131) in the horizontal direction corresponding to the exterior of the T-shaped blocks (111).

6. The injection mold for ejecting the injection substrate according to claim 1, characterized in that: The material discharge mechanism includes a material discharge slide (21) fixedly connected to the inner wall of the moving mold base (4) near the bottom of the molding block (9). The bottom inner wall of the fixed mold base (3) is provided with a cavity (22) for the material discharge slide (21) to be inserted. The bottom inner wall of the material discharge slide (21) is connected with a number of buffer plates (23). The ends of the buffer plates (23) are located inside the material discharge slide (21) and are connected with springs (24).

7. The injection mold for ejecting the injection substrate according to claim 6, characterized in that: The connection between the two ends of the buffer plate (23) and the bottom inner wall of the mounting top plate (1) and the outer wall of the spring (24) is welded.

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