Injection molding hole cleaning assembly and injection mold

By designing an injection hole cleaning component, a rotating rod and cylinder are used to drive a scraper to efficiently clean the material inside the injection hole, solving the problem of slow heating in existing devices and improving cleaning efficiency and mold life.

CN223821005UActive Publication Date: 2026-01-23KUNSHAN FEIYA PRECISION MOULDING CO LTD
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Patent Information

Application Number
CN202520132995.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-23
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The existing injection hole cleaning device has a slow heating process, which affects the cleaning efficiency.

Method used

Design an injection hole cleaning component that uses a mounting groove and mounting block inside a fixed housing, along with the coordinated movement of a rotating rod, cylinder, and scraper, to efficiently remove raw materials from the inside of the injection hole.

Benefits of technology

It improves the efficiency of cleaning injection holes, extends the service life of molds, and enhances production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding hole cleaning assembly and an injection mold, the injection molding hole cleaning assembly comprises a fixed shell, and further comprises a mounting groove, a mounting block, a rotating rod, a square rod, a limiting hole II and a fixed plate, the fixed shell is provided, the mounting groove is formed in the fixed shell, the mounting block is mounted in the mounting groove, and the limiting rod is pulled out to drive the square rod to rotate. A fixing bolt is loosened, the fixing bolt is separated from a second limiting hole, limiting on a square rod is relieved, the square rod is rotated, the angle of a first air cylinder is adjusted through the rotating rod and the first air cylinder, and the height of a second air cylinder is adjusted through the first air cylinder; the second air cylinder drives the scraping plate to move, after the upper mold base ascends, the scraping plate enters the lower mold base by adjusting components such as the first air cylinder, then the upper mold base and the lower mold base are combined together, the second air cylinder drives the scraping plate to move, and the scraping plate scrapes raw materials in an injection molding hole.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection hole cleaning component and an injection mold. Background Technology

[0002] Injection hole cleaning components and injection molds are crucial parts of the injection molding process. Injection hole cleaning components are devices used to clean the injection holes in molds, ensuring proper mold operation and smooth product production. These components typically consist of specialized tools and accessories that effectively remove residues and blockages from the mold, guaranteeing unobstructed injection holes. Regular cleaning extends mold life, improves production efficiency, and enhances product quality. Injection molds are essential tools for plastic molding. Molten plastic is injected into the mold, and after cooling and solidification, the desired product shape is obtained. Injection molds have a complex structure, comprising multiple parts and components, among which the injection hole is one of the key components.

[0003] The prior art provides an injection mold for automatic cleaning of injection holes (publication number: CN220593883U). The device includes an injection mold, a cleaning component and an auxiliary component. The cleaning component includes a servo motor fixedly installed on the side wall of the moving mold, and a connecting rod fixedly connected to the top of the upper shaft of the servo motor. A cylinder is also fixedly installed on the other end of the connecting rod.

[0004] However, the existing devices still have the following drawbacks:

[0005] In the existing device, the cleaning components inside the device heat the raw material inside the injection hole. The heating process is relatively slow, which affects the efficiency of the cleaning work. Therefore, we need to propose a high-voltage pinhole and withstand voltage detection device for winding wires. Utility Model Content

[0006] The purpose of this utility model is to provide an injection hole cleaning component and an injection mold. An installation groove is provided inside the fixed shell, and an installation block is installed inside the installation groove. By pulling out the limiting rod, the limiting rod disengages from the first limiting hole, facilitating the removal of the installation block. The installation block is used to install a rotating rod. Loosening the fixing bolt disengages the fixing bolt from the second limiting hole, releasing the limitation on the square rod. Rotating the square rod allows the angle of the second cylinder to be adjusted via the rotating rod and the first cylinder. The first cylinder adjusts the height of the second cylinder, which in turn moves the scraper. After the upper mold base rises, by adjusting the first cylinder and other components, the scraper enters the lower mold base. After the upper and lower mold bases are joined together, the second cylinder moves the scraper, which scrapes away the material inside the injection hole, thus solving the problems mentioned in the background art.

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

[0008] An injection molding hole cleaning assembly includes a fixed shell, a mounting groove, a mounting block, a rotating rod, a square rod, two limiting holes, a fixing plate, a first cylinder, a second cylinder, and a scraper. The fixed shell has a mounting groove inside, and the mounting block is slidably connected inside the mounting groove. The rotating rod is rotatably connected inside the mounting block. The upper end of the rotating rod is fixedly connected to the square rod, and two annularly distributed limiting holes are formed on the outer side of the square rod. The fixing plate is fixedly connected to the side wall of the mounting block. The lower end of the rotating rod is fixedly connected to the first cylinder, which is rotatably connected to the mounting block. The output end of the first cylinder is fixedly connected to the second cylinder, and the output end of the second cylinder is fixedly connected to the scraper.

[0009] Preferably, the fixed shell has two symmetrically distributed limiting rods slidably connected inside, and each of the two limiting rods has a spring on its outer side.

[0010] Preferably, a fixing ring is fixedly connected to the outer side of each of the two limiting rods, and the fixing ring is slidably connected to the fixing shell.

[0011] Preferably, the mounting block has two symmetrically distributed limiting holes, which are slidably connected to two limiting rods respectively.

[0012] Preferably, the fixing plate is provided with fixing bolts inside, and the fixing bolts are threadedly connected to the limiting hole.

[0013] An injection mold includes an injection hole cleaning assembly and a lower mold base. An upper mold base is provided at the upper end of the lower mold base. The upper mold base is fixedly connected to a fixed shell. A plurality of symmetrically distributed adjustment components for adjusting the height of the upper mold base are provided on the outer side of the lower mold base.

[0014] Preferably, each of the multiple adjustment components includes multiple mounting plates fixedly installed on the side wall of the lower mold base, and a third cylinder is provided at the upper end of each of the multiple mounting plates. A lifting plate is fixedly connected to the output end of the third cylinder, and the lifting plate is fixedly connected to the upper mold base.

[0015] Preferably, the outer side of the lower mold base is provided with a guide assembly for guiding the upper mold base. The guide assembly includes multiple fixing blocks fixedly connected to the side wall of the lower mold base. The upper end of each of the multiple fixing blocks is fixedly connected to a fixing rod. The upper end of each of the multiple fixing rods is fixedly connected to a limit plate. The outer side of each of the multiple fixing rods is slidably connected to a lifting block. The lifting block is fixedly connected to the upper mold base.

[0016] Preferably, both the lower mold base and the upper mold base are provided with heat dissipation components. Each heat dissipation component includes two heat dissipation slots opened inside the lower mold base and the upper mold base. Each heat dissipation slot is provided with a heat-conducting plate inside. Multiple evenly distributed partitions are fixedly connected to the outside of the heat-conducting plate. The multiple partitions are respectively fixedly connected to the heat dissipation slots. A water inlet pipe is provided at one end of each of the two heat dissipation slots, and a water outlet pipe is provided at the other end of each of the two heat dissipation slots.

[0017] Preferably, a controller is fixedly connected to the side wall of the lower mold base, and the controller is electrically connected to the first cylinder, the second cylinder, and the third cylinder respectively.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model features a fixed shell with an internal mounting groove. A mounting block is installed inside the mounting groove. By pulling out the limiting rod, the limiting rod disengages from the first limiting hole, facilitating the removal of the mounting block. The mounting block is then used to install a rotating rod. Loosening the fixing bolt disengages it from the second limiting hole, releasing the limitation on the square rod. Rotating the square rod allows the angle of the second cylinder to be adjusted via the rotating rod and the first cylinder. The first cylinder adjusts the height of the second cylinder, which in turn moves the scraper. After the upper mold base rises, the scraper enters the lower mold base by adjusting the first cylinder and other components. The upper and lower mold bases are then joined together. The second cylinder then moves the scraper, which scrapes away the material inside the injection hole. Attached Figure Description

[0020] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0021] Figure 2 This is the second structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the partition of this utility model;

[0024] Figure 5 This is a partial structural schematic diagram of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the fixed shell of this utility model;

[0026] Figure 7 This is a schematic diagram of the mounting block of this utility model.

[0027] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Fixed shell; 4. Mounting groove; 5. Mounting block; 6. Limiting rod; 7. Spring; 8. Fixing ring; 9. Limiting hole one; 10. Rotating rod; 11. Square rod; 12. Limiting hole two; 13. Fixing plate; 14. Fixing bolt; 15. First cylinder; 16. Second cylinder; 17. Scraper; 18. Mounting plate; 19. Third cylinder; 20. Lifting plate; 21. Fixing block; 22. Fixing rod; 23. Limiting plate; 24. Lifting block; 25. Heat dissipation groove; 26. Heat conducting plate; 27. Spacer; 28. Water inlet pipe; 29. ​​Water outlet pipe; 30. Controller; 31. Connecting half ring. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-7 This utility model provides a technical solution:

[0030] An injection molding hole cleaning assembly includes a fixed shell 3, an installation groove 4, an installation block 5, a rotating rod 10, a square rod 11, two limiting holes 12, a fixing plate 13, a first cylinder 15, a second cylinder 16, and a scraper 17. The fixed shell 3 has an installation groove 4 inside, and the installation block 5 is slidably connected inside the installation groove 4. The rotating rod 10 is rotatably connected inside the installation block 5. The upper end of the rotating rod 10 is fixedly connected to the square rod 11. Two limiting holes 12 are arranged in a ring on the outer side of the square rod 11. The fixing plate 13 is fixedly connected to the side wall of the installation block 5. The lower end of the rotating rod 10 is fixedly connected to the first cylinder 15. The first cylinder 15 is rotatably connected to the installation block 5. The output end of the first cylinder 15 is fixedly connected to the second cylinder 16. The output end of the second cylinder 16 is fixedly connected to the scraper 17.

[0031] The fixed shell 3 has two symmetrically distributed limiting rods 6 slidably connected inside. Springs 7 are provided on the outer side of each of the two limiting rods 6. Fixing rings 8 are fixedly connected to the outer side of each of the two limiting rods 6. The fixing rings 8 are slidably connected to the fixed shell 3. The mounting block 5 has two symmetrically distributed limiting holes 9 inside. The two limiting holes 9 are slidably connected to the two limiting rods 6 respectively.

[0032] In this embodiment, as Figure 6As shown, when the limiting rod 6 is pulled out, the limiting rod 6 disengages from the limiting hole 9, releasing the limitation on the mounting block 5. At the same time, the limiting rod 6 drives the fixing ring 8 to compress the spring 7. When the limiting rod 6 is released, the fixing ring 8 is reset under the elastic force of the spring 7.

[0033] The fixing plate 13 is provided with fixing bolts 14 inside, and fixing bolts 14 are threadedly connected to limiting holes 12.

[0034] Furthermore, such as Figure 7 As shown, the fixing plate 13 is used to install the fixing bolt 14. The fixing bolt 14 cooperates with the limiting hole 12 to limit the square rod 11.

[0035] An injection mold includes an injection hole cleaning assembly and a lower mold base 1. An upper mold base 2 is provided at the upper end of the lower mold base 1. The upper mold base 2 is fixedly connected to a fixed shell 3. A plurality of symmetrically distributed adjustment components for adjusting the height of the upper mold base 2 are provided on the outer side of the lower mold base 1. Each adjustment component includes a plurality of mounting plates 18 fixedly installed on the side wall of the lower mold base 1. A third cylinder 19 is provided at the upper end of each of the mounting plates 18. A lifting plate 20 is fixedly connected to the output end of the third cylinder 19. The lifting plate 20 is fixedly connected to the upper mold base 2.

[0036] Furthermore, such as Figure 1 , 2 As shown, the mounting plate 18 mounts the third cylinder 19, and the third cylinder 19 controls the height of the upper mold base 2 through the lifting plate 20.

[0037] The outer side of the lower mold base 1 is provided with a guide assembly for guiding the upper mold base 2. The guide assembly includes multiple fixing blocks 21 fixedly connected to the side wall of the lower mold base 1. The upper end of each fixing block 21 is fixedly connected to a fixing rod 22. The upper end of each fixing rod 22 is fixedly connected to a limit plate 23. The outer side of each fixing rod 22 is slidably connected to a lifting block 24. The lifting block 24 is fixedly connected to the upper mold base 2.

[0038] Preferred, such as Figure 1 , 2 As shown, during the lifting and lowering process of the upper mold base 2, the lifting block 24 slides on the outside of the fixed rod 22, the lifting block 24 guides the upper mold base 2, and the fixed block 21 installs the fixed rod 22.

[0039] Both the lower mold base 1 and the upper mold base 2 are equipped with heat dissipation components. Each heat dissipation component includes two heat dissipation slots 25 opened inside the lower mold base 1 and the upper mold base 2. Each heat dissipation slot 25 is equipped with a heat conduction plate 26. Multiple spacers 27 are fixedly connected to the outside of the heat conduction plate 26. The multiple spacers 27 are fixedly connected to the heat dissipation slots 25 respectively. Each heat dissipation slot 25 is equipped with a water inlet pipe 28 at one end and a water outlet pipe 29 at the other end. Each lower mold base 1 and the upper mold base 2 is equipped with a connecting half ring 31 on its side wall.

[0040] In addition, such as Figure 3 As shown, the water inlet pipe 28 facilitates the injection of water into the heat dissipation tank 25. Under the guidance of the partition 27, the water flow is evenly distributed inside the heat dissipation tank 25, which facilitates the water flow to dissipate heat and heat the heat conduction plate 26, facilitates the entry of raw materials into the mold cavity, and facilitates cooling after injection molding. The two connecting half rings 31 are spliced ​​together to facilitate connection with the injection pipe.

[0041] A controller 30 is fixedly connected to the side wall of the lower mold base 1. The controller 30 is electrically connected to the first cylinder 15, the second cylinder 16, and the third cylinder 19 respectively.

[0042] It is worth noting that, such as Figure 1 As shown, controller 30 controls the operation of electrical appliances inside the device.

[0043] Working principle: When this utility model is used, the inside of the fixed shell 3 is provided with an installation groove 4, and the installation block 5 is installed inside the installation groove 4. By pulling out the limiting rod 6, the limiting rod 6 is disengaged from the limiting hole 1 9, making it easy to remove the installation block 5. The installation block 5 is used to install the rotating rod 10. Loosen the fixing bolt 14, and the fixing bolt 14 is disengaged from the limiting hole 2 12, releasing the limitation on the square rod 11. Rotate the square rod 11, and adjust the angle of the first cylinder 15 by rotating the rod 10 and the first cylinder 15. The first cylinder 15 adjusts the height of the second cylinder 16. The second cylinder 16 drives the scraper 17 to move. After the upper mold base 2 rises, by adjusting the first cylinder 15 and other components, the scraper 17 enters the interior of the lower mold base 1. Then, the upper mold base 2 and the lower mold base 1 are joined together. The second cylinder 16 drives the scraper 17 to move, and the scraper 17 scrapes the raw material inside the injection hole.

[0044] Mounting plate 18 is used to install the third cylinder 19. The third cylinder 19 controls the height of the upper mold base 2 through lifting plate 20. During the lifting process of the upper mold base 2, lifting block 24 slides on the outside of fixed rod 22. Lifting block 24 guides the upper mold base 2. Fixed block 21 is used to install fixed rod 22.

[0045] The water inlet pipe 28 facilitates the injection of water into the heat dissipation tank 25. Under the guidance of the partition 27, the water flow is evenly distributed inside the heat dissipation tank 25, which facilitates the water flow to dissipate heat and heat the heat conduction plate 26, facilitates the entry of raw materials into the mold cavity, and facilitates cooling after injection molding.

[0046] 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. An injection molding hole cleaning assembly, comprising a fixing shell (3), characterized in that, It also includes an installation groove (4), an installation block (5), a rotating rod (10), a square rod (11), a limiting hole (12), a fixing plate (13), a first cylinder (15), a second cylinder (16), and a scraper (17). The fixing shell (3) has an installation groove (4) inside. The installation block (5) is slidably connected inside the installation groove (4). The rotating rod (10) is rotatably connected inside the installation block (5). The upper end of the rotating rod (10) is fixedly connected to a square rod (11). 11) Two limiting holes (12) are provided on the outer side of the square rod (11) in a ring. A fixing plate (13) is fixedly connected to the side wall of the mounting block (5). A first cylinder (15) is fixedly connected to the lower end of the rotating rod (10). The first cylinder (15) is rotatably connected to the mounting block (5). A second cylinder (16) is fixedly connected to the output end of the first cylinder (15). A scraper (17) is fixedly connected to the output end of the second cylinder (16).

2. The injection hole cleaning assembly according to claim 1, characterized in that: The fixed shell (3) has two symmetrically distributed limiting rods (6) slidingly connected inside, and springs (7) are provided on the outer sides of the two limiting rods (6).

3. The injection hole cleaning assembly according to claim 2, characterized in that: Both of the limiting rods (6) are fixedly connected to a fixing ring (8) on their outer sides, and the fixing ring (8) is slidably connected to the fixing shell (3).

4. The injection hole cleaning assembly according to claim 1, characterized in that: The mounting block (5) has two symmetrically distributed limiting holes (9) inside, and the two limiting holes (9) are slidably connected to the two limiting rods (6) respectively.

5. The injection hole cleaning assembly according to claim 1, characterized in that: The fixing plate (13) is provided with fixing bolts (14) inside, and the fixing bolts (14) are threadedly connected to the limiting hole (12).

6. An injection mold, characterized in that: The injection hole cleaning assembly according to any one of claims 1-5 further includes a lower mold base (1), an upper mold base (2) is provided at the upper end of the lower mold base (1), the upper mold base (2) is fixedly connected to the fixed shell (3), and a plurality of symmetrically distributed adjustment components for adjusting the height of the upper mold base (2) are provided on the outer side of the lower mold base (1).

7. The injection mold according to claim 6, characterized in that: Each of the aforementioned adjustment components includes multiple mounting plates (18) fixedly installed on the side wall of the lower mold base (1). Each of the multiple mounting plates (18) is provided with a third cylinder (19) at its upper end. A lifting plate (20) is fixedly connected to the output end of the third cylinder (19). The lifting plate (20) is fixedly connected to the upper mold base (2).

8. The injection mold according to claim 7, characterized in that: The lower mold base (1) is provided with a guide assembly for guiding the upper mold base (2) on its outer side. The guide assembly includes a plurality of fixing blocks (21) fixedly connected to the side wall of the lower mold base (1). The upper ends of the plurality of fixing blocks (21) are fixedly connected to fixing rods (22). The upper ends of the plurality of fixing rods (22) are fixedly connected to limit plates (23). The outer sides of the plurality of fixing rods (22) are slidably connected to lifting blocks (24). The lifting blocks (24) are fixedly connected to the upper mold base (2).

9. The injection mold according to claim 8, characterized in that: The lower mold base (1) and the upper mold base (2) are both equipped with heat dissipation components. Each heat dissipation component includes two heat dissipation slots (25) opened inside the lower mold base (1) and the upper mold base (2). Each of the two heat dissipation slots (25) is equipped with a heat-conducting plate (26). Multiple evenly distributed partitions (27) are fixedly connected to the outside of the heat-conducting plate (26). The multiple partitions (27) are fixedly connected to the heat dissipation slots (25) respectively. Each of the two heat dissipation slots (25) is equipped with a water inlet pipe (28) at one end and a water outlet pipe (29) at the other end.

10. The injection mold according to claim 9, characterized in that: A controller (30) is fixedly connected to the side wall of the lower mold base (1), and the controller (30) is electrically connected to the first cylinder (15), the second cylinder (16), and the third cylinder (19).

Citation Information

Patent Citations

  • Injection mold capable of automatically cleaning injection molding hole

    CN220593883U