A multi-hole stripper device for injection molding

Abstract

The utility model discloses a kind of injection mold multi-hole tooth twisting devices, belong to mould manufacturing technical field, it includes mould base, the upper portion of the mould base is fixedly connected with stand, the stand outer slide connection has injection and sealing device, the mould base is equipped with sealing plate, the upper portion of the mould base is fixedly connected with fixed column, the outer surface of the fixed column is slidably connected with cooler, the sealing plate is provided with several tooth cores, the two sides of the sealing plate are fixedly connected with cross block. The utility model is through being provided with sealing plate, clamping structure, cross block and mould base, by the cooperation between cross block, inclined plate and spring one, so that sealing plate and mould base can realize the function of quick assembly, subsequent independently maintain and handle tooth core in sealing plate, avoid to dismantle entire mould due to tooth core wear or damage, not only reduce subsequent operation procedure, and guarantee the precision and service life of mould.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to a multi-hole threaded device for injection molds. Background Technology

[0002] Thread forming in injection molds is widely used in a range of fields, including plastic bottle caps, medical devices, and electronic components. Thread forming typically employs rotary demolding or a sliding core-pulling mechanism. In plastic products, threads primarily serve functions such as connection, fixation, and sealing. Due to the characteristics of plastic materials, the thread forming method differs significantly from metal thread processing. In the injection molding process, directly forming threads on the mold is a common practice. Current injection molds often utilize threaded rod devices, which drive multiple cores to rotate synchronously, thus achieving multi-hole thread forming. This design ensures the synchronicity and consistency of multiple threaded holes and is suitable for precision injection molding. However, most threaded rod devices are integrated with the injection mold. Once the threaded rod device wears or is damaged, repair or replacement becomes extremely difficult, often requiring the disassembly of the entire mold. This is not only time-consuming and labor-intensive but may also affect the mold's precision and lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a multi-hole threaded device for injection molds to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-hole threaded device for injection molds, comprising a mold base, a column fixedly connected to the top of the mold base, an injection mold and a sealing device slidably connected to the outside of the column, a sealing plate provided inside the mold base, a fixing column fixedly connected to the top of the mold base, a cooler slidably connected to the outer surface of the fixing column, a plurality of threaded cores provided inside the sealing plate, cross blocks fixedly connected to both sides of the sealing plate, a snap-fit ​​structure fixedly connected to the front of the mold base, the snap-fit ​​structure overlapping with the cross blocks, a limit structure fixedly connected to the front of the cooler, an auxiliary plate fixedly connected to the front of the sealing plate, the auxiliary plate snapping with the limit structure, the snap-fit ​​structure comprising a sleeve plate, a moving rod and a spring, an inclined plate slidably connected inside the sleeve plate, and a fixing device fixedly connected to one end of the moving rod.

[0005] As a further preferred embodiment of this technical solution, the injection molding tool overlaps above the mold base, the sealing device overlaps above the injection molding tool, the cooler is connected to the sealing plate, and the cross block is engaged inside the mold base.

[0006] As a further preferred embodiment of this technical solution, the sleeve plate is fixedly connected to the outside of the mold base, one end of the moving rod is connected to the inclined plate, and the spring is sleeved on the outside of the moving rod.

[0007] As a further preferred embodiment of this technical solution, the moving rod is slidably connected to the outside of the sleeve plate, the fixed plate is connected to the sleeve plate by a spring, and the inclined plate overlaps with the cross block.

[0008] As a further preferred embodiment of this technical solution, the limiting structure includes a mounting plate and a rotating plate. The mounting plate is fixedly connected to the front of the cooler, the auxiliary plate overlaps inside the mounting plate, a turntable is rotatably connected inside the mounting plate, and a gear is connected to the outside of the turntable.

[0009] As a further preferred embodiment of this technical solution, a toothed plate is slidably connected inside the mounting plate, the toothed plate meshes with a gear, the rotating plate is rotatably connected outside the mounting plate, one side of the toothed plate is connected to the rotating plate, and a limit rod is fixedly connected inside the rotating plate.

[0010] As a further preferred embodiment of this technical solution, the limiting rod is engaged with the auxiliary plate, and a second spring is sleeved on the limiting rod. The rotating plate is connected to the mounting plate through the second spring.

[0011] This utility model provides a multi-hole threaded device for injection molds, which has the following beneficial effects:

[0012] (1) This utility model sets up a sealing plate, a snap-fit ​​structure, a cross block and a mold base. The sealing plate slides in the mold base through the cross block, and the inclined edge of the surface of the cross block will contact the inclined plate. When the inclined plate receives the push force, it will slide in the sleeve plate. When the fixed plate and the moving rod move, they will drive the spring to deform. When the sealing plate and the mold base are completely in contact, the inclined plate will lose resistance. After the inclined plate is reset by the spring, it will overlap with the cross block. Through the cooperation between the cross block, the inclined plate and the spring, the sealing plate and the mold base can achieve the function of quick assembly. It is convenient to carry out separate maintenance of the tooth core in the sealing plate. It avoids disassembling the entire mold due to wear or damage to the tooth core. It not only reduces the subsequent operation process, but also ensures the accuracy and service life of the mold.

[0013] (2) By setting a limiting structure, the turntable drives the gear to rotate, the turntable pulls the limiting rod, and the cooler moves and will be locked under the sealing plate. Then the auxiliary plate will overlap with the mounting plate. When the rotation force of the turntable is released, the reset limiting rod will be locked with the auxiliary plate, so that the cooler can be connected to the bottom of the sealing plate, and the cooler can cool the inside of the sealing plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a three-dimensional structural diagram of the mold base of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the snap-fit ​​structure of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the limiting structure of this utility model.

[0018] In the diagram: 1. Mold base; 2. Column; 3. Injection mold; 4. Seal; 5. Sealing plate; 6. Fixed column; 7. Cooler; 8. Snap-fit ​​structure; 801. Sleeve plate; 802. Inclined plate; 803. Moving rod; 804. Fixed plate; 805. Spring 1; 9. Limiting structure; 901. Mounting plate; 902. Turntable; 903. Gear; 904. Tooth plate; 905. Turning plate; 906. Limiting rod; 907. Spring 2; 10. Tooth core; 11. Auxiliary plate; 12. Cross block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown, in this embodiment, a multi-hole threaded device for injection molds includes a mold base 1, a column 2 fixedly connected to the top of the mold base 1, an injection mold 3 and a sealing mold 4 slidably connected to the outside of the column 2, a sealing plate 5 inside the mold base 1, a fixing column 6 fixedly connected to the top of the mold base 1, a cooler 7 slidably connected to the outer surface of the fixing column 6, a plurality of threaded cores 10 inside the sealing plate 5, cross blocks 12 fixedly connected to both sides of the sealing plate 5, a snap-fit ​​structure 8 fixedly connected to the front of the mold base 1, the snap-fit ​​structure 8 overlapping with the cross blocks 12, a limit structure 9 fixedly connected to the front of the cooler 7, an auxiliary plate 11 fixedly connected to the front of the sealing plate 5, the auxiliary plate 11 snapping with the limit structure 9, the snap-fit ​​structure 8 including a sleeve plate 801, a moving rod 803 and a spring 805, an inclined plate 802 slidably connected inside the sleeve plate 801, and a fixing device fixedly connected to one end of the moving rod 803.

[0021] like Figure 1 and Figure 3As shown, the injection mold 3 overlaps above the mold base 1, the sealing device 4 overlaps above the injection mold 3, the cooler 7 is connected to the sealing plate 5, the cross block 12 is snapped into the mold base 1, the sleeve plate 801 is fixedly connected to the outside of the mold base 1, one end of the moving rod 803 is connected to the inclined plate 802, the spring 805 is sleeved on the outside of the moving rod 803, the moving rod 803 is slidably connected to the outside of the sleeve plate 801, the fixed plate 804 is connected to the sleeve plate 801 through the spring 805, and the inclined plate 802 overlaps with the cross block 12.

[0022] By setting the cross block 12, when connecting the tooth core 10 inside the sealing plate 5 to the mold base 1, the sealing plate 5 can slide inside the mold base 1 through the cross block 12, so that the cross block 12 plays a certain limiting role in fixing the sealing plate 5, and avoids the sealing plate 5 from being misaligned with the mold base 1 when it is fixed.

[0023] like Figure 4 As shown, the limiting structure 9 includes a mounting plate 901 and a rotating plate 905. The mounting plate 901 is fixedly connected to the front of the cooler 7. An auxiliary plate 11 overlaps inside the mounting plate 901. A turntable 902 is rotatably connected inside the mounting plate 901. A gear 903 is connected to the outside of the turntable 902. A toothed plate 904 is slidably connected inside the mounting plate 901. The toothed plate 904 meshes with the gear 903. The rotating plate 905 is rotatably connected to the outside of the mounting plate 901. One side of the toothed plate 904 is connected to the rotating plate 905. A limiting rod 906 is fixedly connected inside the rotating plate 905. The limiting rod 906 is engaged with the auxiliary plate 11. A second spring 907 is sleeved on the limiting rod 906. The rotating plate 905 is connected to the mounting plate 901 through the second spring 907.

[0024] By setting spring 907, the turntable 902 drives gear 903 to rotate. Since gear plate 904 meshes with gear 903, turntable 905 will rotate on the outer surface of mounting plate 901. Then turntable 905 will pull limit rod 906. When turntable 905 moves, it will cause spring 907 to deform, so that spring 907 can provide a certain support for the movement of limit rod 906 and prevent limit rod 906 from falling off when moving.

[0025] This utility model provides a multi-hole threaded device for injection molds, the specific working principle of which is as follows:

[0026] When it is necessary to connect the tooth core 10 inside the sealing plate 5 to the mold base 1, the sealing plate 5 can slide inside the mold base 1 through the cross block 12. The inclined edge of the surface of the cross block 12 will contact the inclined plate 802. When the inclined plate 802 receives the pushing force, it will slide inside the sleeve plate 801. When the fixed plate 804 and the moving rod 803 move, they will drive the spring 805 to deform. When the sealing plate 5 is completely in contact with the mold base 1, the inclined plate 802 will lose resistance. After the inclined plate 802 is reset by the spring 805, it will overlap with the cross block 12.

[0027] The turntable 902 drives the gear 903 to rotate. Since the gear plate 904 meshes with the gear 903, the turntable 905 rotates on the outer surface of the mounting plate 901. Then the turntable 905 pulls the limit rod 906. When the turntable 905 moves, it causes the second spring 907 to deform, which causes the cooler 7 to move and lock under the sealing plate 5. Then the auxiliary plate 11 will overlap with the mounting plate 901. When the rotation force of the turntable 902 is released, the limit rod 906 will be reset by the action of the second spring 907. After being reset, the limit rod 906 will lock with the auxiliary plate 11.

[0028] 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 multi-hole threaded device for injection molds, comprising a mold base (1), characterized in that: A column (2) is fixedly connected to the top of the mold base (1). An injection mold (3) and a sealing device (4) are slidably connected to the outside of the column (2). A sealing plate (5) is provided inside the mold base (1). A fixing column (6) is fixedly connected to the top of the mold base (1). A cooler (7) is slidably connected to the outer surface of the fixing column (6). Several toothed cores (10) are provided inside the sealing plate (5). Cross blocks (12) are fixedly connected to both sides of the sealing plate (5). A snap-fit ​​is fixedly connected to the front of the mold base (1). Structure (8), the snap-fit ​​structure (8) overlaps with the cross block (12), the front of the cooler (7) is fixedly connected to the limiting structure (9), the front of the sealing plate (5) is fixedly connected to the auxiliary plate (11), the auxiliary plate (11) is snap-fitted with the limiting structure (9), the snap-fit ​​structure (8) includes a sleeve plate (801), a moving rod (803) and a spring (805), the sleeve plate (801) is slidably connected to the inclined plate (802), and one end of the moving rod (803) is fixedly connected to the fixed plate (804).

2. The injection mold multi-hole threaded device according to claim 1, characterized in that: The injection mold (3) overlaps above the mold base (1), the seal (4) overlaps above the injection mold (3), the cooler (7) is connected to the sealing plate (5), and the cross block (12) is snapped into the mold base (1).

3. The injection mold multi-hole threaded device according to claim 1, characterized in that: The sleeve plate (801) is fixedly connected to the outside of the mold base (1), one end of the moving rod (803) is connected to the inclined plate (802), and the spring (805) is sleeved on the outside of the moving rod (803).

4. The injection mold multi-hole threaded device according to claim 1, characterized in that: The moving rod (803) is slidably connected to the outside of the sleeve plate (801), the fixed plate (804) is connected to the sleeve plate (801) through a spring (805), and the inclined plate (802) overlaps with the cross block (12).

5. The injection mold multi-hole threaded device according to claim 1, characterized in that: The limiting structure (9) includes a mounting plate (901) and a rotating plate (905). The mounting plate (901) is fixedly connected to the front of the cooler (7). The auxiliary plate (11) overlaps inside the mounting plate (901). A turntable (902) is rotatably connected inside the mounting plate (901). A gear (903) is connected to the outside of the turntable (902).

6. The injection mold multi-hole threaded device according to claim 5, characterized in that: A toothed plate (904) is slidably connected inside the mounting plate (901). The toothed plate (904) meshes with a gear (903). The rotating plate (905) is rotatably connected outside the mounting plate (901). One side of the toothed plate (904) is connected to the rotating plate (905). A limit rod (906) is fixedly connected inside the rotating plate (905).

7. The injection mold multi-hole threaded device according to claim 6, characterized in that: The limiting rod (906) is engaged with the auxiliary plate (11), and the limiting rod (906) is fitted with a spring (907). The rotating plate (905) is connected to the mounting plate (901) through the spring (907).

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