Injection mold base fixing structure

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection mold base fixing structure which comprises a base, and two spacing plates are welded at the top of the base. According to the utility model, the motor is started to rotate reversely, and the motor drives the transmission through the second belt pulley, the first belt pulley and the belt, so that the lead screw drives the connecting block to slide on the guide rod, the connecting block drives the clamping plates to move, the clamping plates are separated from the mold core, then the mold core is taken out, and another mold core is placed between the two clamping plates in the lower mold cavity; then a motor is started to rotate in the forward direction, the motor drives a belt through a second belt wheel, a first belt wheel and a belt, so that a lead screw drives a corresponding connecting block to slide on a guide rod, the connecting block drives a corresponding clamping plate to move, the two clamping plates move in the direction close to each other, and the other mold core is fixed through the two clamping plates; and quick replacement and fixation of the mold core are realized, so that the production efficiency and the flexibility are greatly improved.

Description

Technical Field

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

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of objects by changing the physical state of the material being molded. It is often referred to as the "mother of industry."

[0003] Currently, most injection mold bases use a one-piece design for their fixing structure, with the mold core and mold base tightly integrated, making them difficult to disassemble and replace. Because the mold core is not replaceable, when producing plastic products of different sizes, shapes, or materials, it is often necessary to replace the entire mold. This not only increases production costs but also extends the production cycle. Furthermore, when the mold core becomes unusable due to wear or damage, the entire mold also needs to be replaced, which undoubtedly further increases the operational burden on enterprises. Therefore, we propose an injection mold base fixing structure to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an injection mold blank fixing structure, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A mold blank fixing structure includes a base, two partition plates welded to the top of the base, a support plate fixedly connected to the top of the partition plates, a lower mold fixedly connected to the top of the support plate, an upper mold movably contacting the top of the lower mold, a lower mold cavity provided on the lower mold cavity, a mold core provided inside the lower mold cavity, a rectangular hole opened on the support plate, lead screws rotatably connected to the inner walls of both sides of the rectangular hole, a first pulley fixedly connected to one of the lead screws, a motor fixedly connected to the front side of the support plate, a second pulley fixedly connected to the output shaft of the motor, the first pulley and the second pulley being driven by the same belt, a connecting block threadedly connected to the lead screw, a clamping plate fixedly connected to the top of the connecting block, two limiting holes opened on the bottom inner wall of the lower mold cavity, guide rods welded between the inner walls of the two sides of the limiting holes, and the guide rods slidably connected to the corresponding connecting blocks.

[0009] Furthermore, a through hole is provided on the inner wall of the front side of the rectangular hole, and the inner wall of the through hole does not contact the outer side of the belt.

[0010] Furthermore, the ends of the two lead screws that are close to each other are fixedly connected, and the threads of the two lead screws are turned in opposite directions.

[0011] Furthermore, the top of the upper mold is provided with a stripping plate, the top of the stripping plate is fixedly connected to a top seat, and the top of the top seat is connected to and fixed with an injection port.

[0012] Furthermore, four fixing plates are welded to the bottom of the top seat, and the fixing plates are threadedly connected to the lower mold by bolts.

[0013] Furthermore, the connecting block is provided with a threaded hole, and the connecting block is threadedly connected to the corresponding lead screw through the threaded hole.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a fixing structure for injection mold blanks, which has the following beneficial effects:

[0016] This invention utilizes a motor that rotates in the reverse direction. Through a second pulley, a first pulley, and a belt, the motor drives a lead screw to rotate. The lead screw moves a corresponding connecting block, which slides on a guide rod. The connecting block then moves a corresponding clamping plate, causing the two clamping plates to move away from each other, separating them from the mold core. The mold core is then removed, and another mold core is placed between the two clamping plates in the lower mold cavity. The motor is then started rotating in the forward direction. Through a second pulley, a first pulley, and a belt, the motor drives a lead screw to slide a corresponding connecting block on the guide rod. The connecting block moves a corresponding clamping plate, causing the two clamping plates to move closer together, thus securing the other mold core. This allows for rapid mold core replacement and fixation, significantly improving production efficiency and flexibility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the base of this utility model after it is hidden and tilted.

[0019] Figure 3 This is a three-dimensional structural diagram of the connection between the lower mold, mold core, clamping plate and bearing plate of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0021] In the diagram: 1. Base; 2. Partition plate; 3. Support plate; 4. Lower mold; 5. Upper mold; 6. Lower mold cavity; 7. Mold core; 8. Rectangular hole; 9. Lead screw; 10. First pulley; 11. Motor; 12. Second pulley; 13. Belt; 14. Connecting block; 15. Clamping plate; 16. Limiting hole; 17. Guide rod; 18. Through hole; 19. Stripping plate; 20. Top seat; 21. Injection port; 22. Fixing plate; 23. Bolt. Detailed Implementation

[0022] 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.

[0023] Example

[0024] like Figure 1-4As shown, an embodiment of this utility model proposes an injection mold blank fixing structure, including a base 1. Two partition plates 2 are welded to the top of the base 1. A support plate 3 is fixedly connected to the top of the partition plates 2. A lower mold 4 is fixedly connected to the top of the support plate 3. An upper mold 5 is movably contacted at the top of the lower mold 4. A lower mold cavity 6 is provided on the lower mold 4. A mold core 7 is provided inside the lower mold cavity 6. A rectangular hole 8 is opened on the support plate 3. A lead screw 9 is rotatably connected to the inner walls on both sides of the rectangular hole 8. A first pulley 10 is fixedly connected to one of the lead screws 9. A motor 11 is fixedly connected to the front side of the support plate 3. A second pulley 12 is fixedly connected to the output shaft of the motor 11. The first pulley 10 and the second pulley 12 are connected to the same belt 13. A connecting block 14 is threadedly connected to the lead screw 9. A clamping plate 15 is fixedly connected to the top of the connecting block 14. Two limiting holes 16 are opened on the bottom inner wall of the lower mold cavity 6. A guide rod 17 is welded between the inner walls on both sides of the limiting hole 16. The guide rod 17 is connected to the corresponding... The connecting block 14 is slidably connected. The motor 11 is started to rotate in the reverse direction. The motor 11 is driven by the second pulley 12, the first pulley 10 and the belt 13, which causes the lead screw 9 to rotate. The lead screw 9 drives the corresponding connecting block 14 to move. The connecting block 14 slides on the corresponding guide rod 17. The connecting block 14 drives the corresponding clamping plate 15 to move. The two clamping plates 15 move away from each other, so that the clamping plate 15 is separated from the mold core 7. Then the mold core 7 is taken out. Then another mold core 7 is placed between the two clamping plates 15 in the lower mold cavity 6. The motor 11 is started to rotate in the forward direction. The motor 11 is driven by the second pulley 12, the first pulley 10 and the belt 13, which causes the lead screw 9 to drive the corresponding connecting block 14 to slide on the guide rod 17. The connecting block 14 drives the corresponding clamping plate 15 to move. The two clamping plates 15 move towards each other, and the other mold core 7 is fixed by the two clamping plates 15. This realizes the quick replacement and fixation of the mold core 7, thereby greatly improving production efficiency and flexibility.

[0025] In some embodiments, a through hole 18 is provided on the inner wall of the front side of the rectangular hole 8, and the inner wall of the through hole 18 does not contact the outer side of the belt 13.

[0026] In some embodiments, the ends of the two lead screws 9 that are close to each other are fixedly connected, and the threads of the two lead screws 9 are turned in opposite directions.

[0027] In some embodiments, the top of the upper mold 5 is provided with a stripping plate 19, the top of the stripping plate 19 is fixedly connected to a top seat 20, and the top of the top seat 20 is connected to and fixed with an injection port 21.

[0028] In some embodiments, four fixing plates 22 are welded to the bottom of the top seat 20. The fixing plates 22 are threadedly connected to the lower mold 4 by bolts 23. The fixing plates 22 serve to fix the mold.

[0029] In some embodiments, the connecting block 14 is provided with a threaded hole, and the connecting block 14 is threadedly connected to the corresponding lead screw 9 through the threaded hole. The connection block 14 serves as a connection.

[0030] Working principle or structural principle: When it is necessary to replace the mold core 7, rotate bolt 23 to separate the fixing plate 22 from the lower mold 4, thereby separating the upper mold 5 from the lower mold 4. Then, start motor 11 to rotate in the reverse direction. Motor 11 drives the screw 9 to rotate through the second pulley 12, the first pulley 10, and the belt 13. The screw 9 drives the corresponding connecting block 14 to move. The connecting block 14 slides on the corresponding guide rod 17. The connecting block 14 drives the corresponding clamping plate 15 to move. The two clamping plates 15 move away from each other, so that the clamping plate 15 and the mold core... After the 7 phases are separated, the mold core 7 is removed, and another mold core 7 is placed between the two clamping plates 15 in the lower mold cavity 6. Then, the motor 11 is started to rotate in the forward direction. The motor 11 is driven by the second pulley 12, the first pulley 10 and the belt 13, so that the lead screw 9 drives the corresponding connecting block 14 to slide on the guide rod 17. The connecting block 14 drives the corresponding clamping plate 15 to move. The two clamping plates 15 move towards each other and fix the other mold core 7 through the two clamping plates 15. This realizes the quick replacement and fixation of the mold core 7, thereby greatly improving production efficiency and flexibility.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing structure for injection mold blanks, comprising a base (1), characterized in that: Two partition plates (2) are welded to the top of the base (1). A support plate (3) is fixedly connected to the top of the partition plate (2). A lower mold (4) is fixedly connected to the top of the support plate (3). An upper mold (5) is movably contacted at the top of the lower mold (4). A lower mold cavity (6) is provided on the lower mold (4). A mold core (7) is provided inside the lower mold cavity (6). A rectangular hole (8) is opened on the support plate (3). A lead screw (9) is rotatably connected to the inner walls on both sides of the rectangular hole (8). A first pulley (10) is fixedly connected to one of the two lead screws (9). (3) is fixedly connected to a motor (11) on the front side. The output shaft of the motor (11) is fixedly connected to a second pulley (12). The first pulley (10) and the second pulley (12) are connected to the same belt (13). The lead screw (9) is threadedly connected to a connecting block (14). The top of the connecting block (14) is fixedly connected to a clamping plate (15). Two limiting holes (16) are opened on the bottom inner wall of the lower mold cavity (6). A guide rod (17) is welded between the inner walls on both sides of the limiting hole (16). The guide rod (17) is slidably connected to the corresponding connecting block (14).

2. The injection mold blank fixing structure according to claim 1, characterized in that: A through hole (18) is provided on the inner wall of the front side of the rectangular hole (8), and the inner wall of the through hole (18) does not contact the outer side of the belt (13).

3. The injection mold blank fixing structure according to claim 1, characterized in that: The ends of the two lead screws (9) are fixedly connected close to each other, and the threads of the two lead screws (9) are in opposite directions.

4. The injection mold blank fixing structure according to claim 1, characterized in that: The top of the upper mold (5) is provided with a stripping plate (19), and a top seat (20) is fixedly connected to the top of the stripping plate (19). The top of the top seat (20) is connected to and fixed with an injection port (21).

5. The injection mold blank fixing structure according to claim 4, characterized in that: The bottom of the top seat (20) is welded with four fixing plates (22), which are threadedly connected to the lower mold (4) by bolts (23).

6. The injection mold blank fixing structure according to claim 1, characterized in that: The connecting block (14) has a threaded hole, and the connecting block (14) is threadedly connected to the corresponding lead screw (9) through the threaded hole.

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