A connecting structure of an injection molding die

Abstract

This utility model relates to the technical field of injection mold connection structure, specifically a connection structure for an injection molding mold, comprising: a screw hole and a screw. The screw hole is formed on the molding mold, and the screw is rotatably connected to the mold base. The mold base has an insertion groove, and an insertion seat is movably inserted into the insertion groove. An anti-loosening cap is fixed at one end of the insertion seat extending out of the insertion groove. The screw nut is movably inserted into the anti-loosening cap. The beneficial effect is that when it is necessary to replace the molding mold for the mold base, one only needs to insert a finger into the groove to pull out the insertion seat from the insertion groove, and remove the anti-loosening cap from the screw nut to release the anti-loosening between the screw hole and the screw. The screw can be easily unscrewed from the screw hole. After replacing the new molding mold, the screw is screwed back into the screw hole and aligned with the inner ring of the insertion groove in the above method. Then, the insertion seat is reinserted into the insertion groove and the anti-loosening cap is put on the screw nut to restore the anti-loosening of the connection structure.

Description

Technical Field

[0001] This utility model relates to the field of injection mold connection structure, specifically a connection structure for injection molding mold. Background Technology

[0002] Injection molded parts refer to workpieces produced and processed through injection molding. Injection molding is an efficient and precise plastic molding process that is widely used in the manufacturing industry. Injection molding machines are the most commonly used equipment for implementing injection molding. An injection molding machine (also known as an injection molding machine or injection molding machine) is a core piece of equipment that injects molten plastic into a mold under high pressure to form a product.

[0003] In the prior art, the forming mold is installed on the mold base. By opening a screw hole in the mold base, a connecting screw is rotated on the forming mold. By tightening the screw in the screw hole, the connection between the mold base and the forming mold is achieved. At the same time, an elastic washer is usually placed on the screw. By increasing the preload of the screw, the elastic washer is compressed to an extreme degree. Under its own elasticity, the elastic washer generates a reaction force on the screw, which compresses the threads between the screw and the screw hole, generating a large frictional force, thereby preventing the connection structure from loosening.

[0004] However, when injection molding different shaped parts, it is necessary to change the mold base to different molding dies. The existing anti-loosening method of the connection structure makes it very time-consuming and laborious to disassemble and assemble the screws and screw holes when changing the molding die. Moreover, the excessive friction between the screw threads will cause the wear on the screw threads to be accelerated, resulting in stripping and failure of the connection structure between the mold base and the molding die. Utility Model Content

[0005] The purpose of this utility model is to provide a connection structure for injection molding dies to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure for an injection molding die, comprising: a screw hole and a screw, the screw hole being formed on the molding die, the screw being rotatably connected to the die base, the screw being movably connected in the screw hole via a threaded connection, an elastic washer being fitted on the screw, the die base being provided with an insertion groove, an insertion seat being movably inserted into the insertion groove, an anti-loosening cap being fixed at one end of the insertion seat extending out of the insertion groove, and the screw cap being movably inserted into the anti-loosening cap.

[0007] Preferably, the insertion groove is an annular hexagonal prism-shaped groove, the insertion seat mates with the insertion groove, and the anti-loosening cap has a cylindrical structure, with both the inner and outer walls of the anti-loosening cap having a hexagonal prism structure.

[0008] Preferably, the connector has a limiting hole, and the inner wall of the connector groove has a limiting rod mounting groove. One end of the limiting rod is movably inserted into the limiting rod mounting groove, and the other end of the limiting rod is movably inserted into the limiting hole.

[0009] Preferably, a lever is fixed on the limiting rod, and a lever groove is provided on the mold base. The lever groove is connected to the limiting rod mounting groove, and the lever is slidably connected in the lever groove, with one end of the lever extending out of the lever groove.

[0010] Preferably, a sealing block is movably inserted into the lever groove, with one end of the sealing block abutting against the inner wall of the lever groove and the other end of the sealing block abutting against the surface of the lever and the limiting rod.

[0011] Preferably, an anti-slip pad is fixed on the sealing block. The anti-slip pad has a ring structure, and the outer ring of the anti-slip pad abuts against the inner wall of the lever groove.

[0012] Preferably, one end of an elastic rope is fixed to the sealing block, and the other end of the elastic rope is fixed to the mold base.

[0013] Preferably, the anti-loosening cap has a hand-grip groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The connection structure of the injection molding die proposed in this utility model allows for easy replacement of the molding die when the die base needs to be replaced. Simply insert your finger into the hand slot, pull the connector out of the slot, and remove the anti-loosening cap from the screw nut. This releases the anti-loosening mechanism between the screw hole and the screw, making it easy to unscrew the screw from the screw hole. After replacing the new molding die, screw the screw back into the screw hole using the same method and align it with the inner ring of the connector slot. Then, reinsert the connector into the connector slot and put the anti-loosening cap on the screw nut to restore the anti-loosening mechanism of the connection structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the other side of the structure of this utility model; Figure 3 This is a schematic cross-sectional view of the present invention. Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic diagram showing the positions of each component after the connector is pulled out of the connector slot. Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0016] In the diagram: 1. Mold base; 2. Molding mold; 3. Screw hole; 4. Screw; 5. Insertion slot; 6. Insertion seat; 7. Limiting hole; 8. Limiting rod mounting slot; 9. Limiting rod; 10. Toggle rod; 11. Toggle rod groove; 12. Sealing block; 13. Anti-slip pad; 14. Elastic rope; 15. Anti-loosening cap; 16. Hand groove; 17. Elastic gasket. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Please refer to Figures 1-6 This utility model provides a technical solution: a connection structure for an injection molding die, comprising: a screw hole 3 and a screw 4. The screw hole 3 is formed on the molding die 2, and the screw 4 is rotatably connected to the die base 1. The screw 4 is movably connected to the screw hole 3 by a threaded connection. An elastic washer 17 is fitted on the screw 4. The die base 1 has an insertion groove 5, and an insertion seat 6 is movably inserted into the insertion groove 5. One end of the insertion seat 6 extending out of the insertion groove 5 is fixed with an anti-loosening cap 15. The nut of the screw 4 is movably inserted into the anti-loosening cap 15. The insertion groove 5 is an annular hexagonal prism-shaped groove, and the insertion seat 6 cooperates with the insertion groove 5. The anti-loosening cap 15 has a cylindrical structure, and both the inner and outer walls of the anti-loosening cap 15 are hexagonal prism structures. A handle groove 16 is formed on the anti-loosening cap 15.

[0019] In actual use, screw 4 with elastic washer 17 is screwed into screw hole 3. After elastic washer 17 is slightly compressed, screw 4 is further adjusted in the tightening direction until the nut of screw 4 is aligned with the inner ring of the groove of insertion slot 5. Then, insertion seat 6 is inserted into insertion slot 5, and anti-loosening cap 15 is fitted onto the nut of screw 4. Insertion slot 5 provides circumferential restraint for insertion seat 6, and anti-loosening cap 15 provides circumferential restraint for screw 4. This prevents loosening of screw hole 3 and screw 4, which serve as the connection structure between mold base 1 and molding mold 2, without excessive compression of elastic washer 17. There will be little friction and wear between the threads of screw 3 and screw 4. When it is necessary to replace the molding mold 2 for mold base 1, simply insert your finger into the hand groove 16, pull the connector 6 out of the connector groove 5, and remove the anti-loosening cap 15 from the nut of screw 4. This will release the anti-loosening between screw hole 3 and screw 4. Screw 4 can be easily unscrewed from screw hole 3. After replacing the new molding mold 2, screw 4 back into screw hole 3 and align it with the inner ring of connector groove 5 in the same way. Then, reinsert connector 6 into connector groove 5 and put anti-loosening cap 15 on the nut of screw 4 to restore the anti-loosening of the connection structure.

[0020] Example 2: Based on Example 1, in order to limit the connector 6 in the connector groove 5, a limiting hole 7 is provided on the connector 6, and a limiting rod mounting groove 8 is provided on the inner wall of the connector groove 5. One end of the limiting rod 9 is movably inserted into the limiting rod mounting groove 8, and the other end of the limiting rod 9 is movably inserted into the limiting hole 7. A lever 10 is fixed on the limiting rod 9, and a lever groove 11 is provided on the mold base 1. The lever groove 11 and the limiting rod mounting groove are connected. 8. The lever 10 is slidably connected in the lever groove 11. One end of the lever 10 extends out of the lever groove 11. A sealing block 12 is movably inserted into the lever groove 11. One end of the sealing block 12 abuts against the inner wall of the lever groove 11, and the other end of the sealing block 12 abuts against the surface of the lever 10 and the limiting rod 9. An anti-slip pad 13 is fixed on the sealing block 12. The anti-slip pad 13 has a ring structure, and the outer ring of the anti-slip pad 13 abuts against the inner wall of the lever groove 11.

[0021] Before inserting the connector 6 into the connector slot 5, pull the sealing block 12 out of the lever slot 11, then move the lever 10. The lever 10 slides in the lever slot 11, causing one end of the limiting rod 9 to insert into the lever slot 11, and the other end of the limiting rod 9 to retract into the limiting rod mounting slot 8. When inserting the connector 6 into the connector slot 5, align the side of the connector 6 with the limiting hole 7 with the side of the inner wall of the connector slot 5 with the limiting rod mounting slot 8. After the connector 6 is inserted into the connector slot 5, reverse the lever 10 to insert one end of the limiting rod 9 into the slot. In the limiting hole 7, the other end of the limiting rod 9 stays in the limiting rod mounting groove 8, thereby limiting the plug seat 6 in the plug groove 5; at the same time, the sealing block 12 is inserted into the lever groove 11, and the lever groove 11 abuts against the end of the limiting rod 9, preventing the limiting rod 9 from retracting into the limiting rod mounting groove 8 and the lever groove 11 under factors such as vibration. The anti-slip pad 13 fixed on the sealing block 12 has a high roughness, and a relatively large frictional force is generated between the inner wall of the lever groove 11 and the anti-slip pad 13, thereby preventing the sealing block 12 from falling out of the lever groove 11.

[0022] Example 3: Based on Example 2, in order to prevent the sealing block 12 from being lost, one end of an elastic rope 14 is fixed to the sealing block 12, and the other end of the elastic rope 14 is fixed to the mold base 1.

[0023] An elastic rope 14 is fixed on the mold base 1, and the other end of the elastic rope 14 is fixed on the sealing block 12. When the sealing block 12 is pulled out from the lever groove 11, the elastic rope 14 can hang the sealing block 12 on the mold base 1 to prevent the sealing block 12 from being lost.

[0024] In actual use, screw 4, with elastic washer 17 fitted on it, is screwed into screw hole 3. After elastic washer 17 is slightly compressed, screw 4 is further adjusted in the tightening direction until the nut of screw 4 is aligned with the inner ring of the groove 5. Then, the connector 6 is inserted into the groove 5, and anti-loosening cap 15 is fitted onto the nut of screw 4. The groove 5 provides circumferential restraint for connector 6, and anti-loosening cap 15 provides circumferential restraint for screw 4. This prevents loosening of screw hole 3 and screw 4, which serve as the connection structure between mold base 1 and molding die 2, without excessive compression of elastic washer 17. This also ensures that the threads of screw hole 3 and screw 4 are properly tightened. There will be little friction and wear between them; when it is necessary to replace the molding die 2 for the mold base 1, simply insert your finger into the handle groove 16, pull the connector 6 out of the connector groove 5, and remove the anti-loosening cap 15 from the nut of the screw 4 to release the anti-loosening between the screw hole 3 and the screw 4. It is easy to unscrew the screw 4 out of the screw hole 3. After replacing the new molding die 2, screw 4 back into the screw hole 3 in the above way and align it with the inner ring of the connector groove 5. Then reinsert the connector 6 into the connector groove 5 and put the anti-loosening cap 15 on the nut of the screw 4 to restore the anti-loosening of the connection structure; before the connector 6 is inserted into the connector groove 5, Pull the sealing block 12 out of the lever groove 11, then move the lever 10. The lever 10 slides in the lever groove 11, causing one end of the limiting rod 9 to insert into the lever groove 11, and the other end of the limiting rod 9 to retract into the limiting rod mounting groove 8. When inserting the connector 6 into the connector groove 5, align the side of the connector 6 with the limiting hole 7 with the side of the connector groove 5 with the limiting rod mounting groove 8 on its inner wall. After the connector 6 is inserted into the connector groove 5, move the lever 10 in the opposite direction, causing one end of the limiting rod 9 to insert into the limiting hole 7, and the other end of the limiting rod 9 to remain in the limiting rod mounting groove 8, thereby limiting the connector 6 in the connector groove 5; at the same time, the sealing block 12 is removed from the groove. The blocking block 12 is inserted into the lever groove 11, which abuts against the end of the limiting rod 9 to prevent the limiting rod 9 from retracting into the limiting rod mounting groove 8 and the lever groove 11 under vibration or other factors. The anti-slip pad 13 fixed on the blocking block 12 has a high roughness, and a relatively large frictional force is generated between the inner wall of the lever groove 11 and the anti-slip pad 13, thereby preventing the blocking block 12 from falling out of the lever groove 11. An elastic rope 14 is fixed on the mold base 1, and the other end of the elastic rope 14 is fixed to the blocking block 12. When the blocking block 12 is pulled out from the lever groove 11, the elastic rope 14 can hang the blocking block 12 on the mold base 1 to prevent the blocking block 12 from being lost.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure for an injection molding die, comprising: The screw hole (3) and screw (4) are provided. The screw hole (3) is opened on the forming mold (2). The screw (4) is rotatably connected to the mold base (1). The screw (4) is movably connected in the screw hole (3) through a threaded connection. An elastic washer (17) is sleeved on the screw (4). The mold base (1) is provided with a plug groove (5). A plug seat (6) is movably inserted in the plug groove (5). One end of the plug seat (6) extending out of the plug groove (5) is fixed with a lock cap (15). The screw cap of the screw (4) is movably inserted in the lock cap (15).

2. The connection structure of an injection molding die according to claim 1, characterized in that: The insertion slot (5) is an annular hexagonal prism-shaped groove, the insertion seat (6) is matched with the insertion slot (5), the anti-loosening cap (15) is a cylindrical structure, and the inner and outer walls of the anti-loosening cap (15) are both hexagonal prism structures.

3. The connection structure of an injection molding die according to claim 1, characterized in that: The plug-in base (6) has a limiting hole (7), and the inner wall of the plug-in groove (5) has a limiting rod mounting groove (8). One end of the limiting rod (9) is movably inserted into the limiting rod mounting groove (8), and the other end of the limiting rod (9) is movably inserted into the limiting hole (7).

4. The connection structure of an injection molding die according to claim 3, characterized in that: A lever (10) is fixed on the limiting rod (9), and a lever groove (11) is provided on the mold base (1). The lever groove (11) is connected to the limiting rod mounting groove (8). The lever (10) is slidably connected in the lever groove (11), and one end of the lever (10) extends out of the lever groove (11).

5. The connection structure of an injection molding die according to claim 4, characterized in that: A blocking block (12) is movably inserted into the lever groove (11). One end of the blocking block (12) abuts against the inner wall of the lever groove (11), and the other end of the blocking block (12) abuts against the surface of the lever (10) and the limiting rod (9).

6. The connection structure of an injection molding die according to claim 5, characterized in that: An anti-slip pad (13) is fixed on the sealing block (12). The anti-slip pad (13) has a ring structure, and the outer ring of the anti-slip pad (13) abuts against the inner wall of the lever groove (11).

7. The connection structure of an injection molding die according to claim 5, characterized in that: One end of an elastic rope (14) is fixed on the sealing block (12), and the other end of the elastic rope (14) is fixed on the mold base (1).

8. The connection structure of an injection molding die according to claim 1, characterized in that: The anti-loosening cap (15) has a hand-holding groove (16).

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