A nozzle protection device for injection molding machines
By designing disassembly and cleaning components for the injection molding machine nozzle protection device, the problem of cumbersome disassembly of the protective cover was solved, achieving efficient cleaning and simplified operation, thus improving equipment maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YUANYING NEW MATERIALS CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
Existing injection molding machine nozzle guards require regular cleaning after prolonged use. The disassembly process is cumbersome and may damage the equipment, resulting in low cleaning efficiency.
A nozzle protection device for injection molding machines was designed, which adopts disassembly and cleaning components, including structures such as fixing holes, mounting plates, connecting plates, pull plates, limiting posts, T-blocks and cleaning grooves, to simplify the disassembly and cleaning process of the protective cover.
It improves the efficiency of disassembling and cleaning the protective cover, reduces the risk of damage to the equipment, and enhances the ease of operation for staff.
Smart Images

Figure CN224275940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine auxiliary technology, specifically to an injection molding machine nozzle protection device. Background Technology
[0002] In the modern injection molding industry, injection molding machines are core equipment and are widely used in the large-scale production of various plastic products. Their working principle is to heat and melt plastic granules into a uniform liquid material through the nozzle of the injection molding machine, and then inject the molten plastic into the mold cavity at a certain pressure and speed with the help of the thrust of the screw or plunger. After cooling and solidification, the plastic product of the required shape and size is finally obtained.
[0003] During the operation of an injection molding machine, when the injection molding machine nozzle injects molten plastic into the mold cavity, the nozzle will spray the molten plastic at a high temperature into the mold cavity at a high pressure and speed, thereby forming the plastic product. During this process, some of the high-temperature molten plastic may splash onto other equipment. In order to avoid this phenomenon, the staff usually installs a protective cover on the fixed platen, which can intercept the splashed molten plastic.
[0004] After prolonged use, the protective cover will accumulate a lot of solidified plastic, which may obstruct the injection of molten plastic into the nozzle. Therefore, the protective cover needs to be cleaned regularly by the staff. Since the protective cover is mostly fixed to the template with multiple bolts, the staff needs to use special tools to remove the bolts when disassembling and cleaning the protective cover, which reduces the cleaning efficiency and may also damage other equipment due to the use of tools. Utility Model Content
[0005] The purpose of this invention is to provide a nozzle protection device for injection molding machines to solve the problem mentioned in the background art that the plastic of the protective cover can hinder the normal operation of the nozzle of the injection molding machine.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a nozzle protection device for an injection molding machine, comprising: an injection molding equipment body, a nozzle body disposed on the injection molding equipment body, a fixed template disposed on the injection molding equipment body, and a protective cover disposed on the fixed template; further comprising: a disassembly and assembly component disposed on the fixed template, the disassembly and assembly component comprising a fixing hole and a mounting plate, the mounting plate disposed on the fixed template, a connecting plate disposed on the mounting plate, a fixing post disposed on the connecting plate, and the fixing hole disposed on the protective cover; the disassembly and assembly component is used for disassembling and installing the protective cover; and a cleaning component disposed on the protective cover, the cleaning component comprising a storage groove disposed on the protective cover, a torsion spring disposed on the protective cover, and a rotating plate disposed on the torsion spring; the cleaning component is used for cleaning the protective cover.
[0007] Preferably, the assembly and disassembly assembly also includes two sets of springs symmetrically arranged on the connecting plate, one side of the springs being mounted on the mounting plate, and a pull plate being provided on the connecting plate, with the pull plate penetrating through the mounting plate.
[0008] Preferably, two sets of limiting posts are symmetrically arranged on the connecting plate, and limiting holes are provided on the mounting plate corresponding to the limiting posts, with the limiting posts and limiting holes matching each other.
[0009] Preferably, a T-shaped block is provided on the side of the protective cover near the fixed template, and a T-shaped groove is provided on the mounting plate corresponding to the T-shaped block, with the T-shaped groove matching the T-shaped block.
[0010] Preferably, two sets of fixing posts are symmetrically arranged on the side of the connecting plate near the protective cover, and the fixing holes match the fixing posts.
[0011] Preferably, the cleaning component also includes a placement slot on the protective cover, the placement slot being rotatably equipped with a rotating column, and a rotating plate being fixedly mounted on the outside of the rotating column.
[0012] Preferably, the torsion spring is disposed on the outside of the rotating column, and the torsion spring is disposed between the rotating plate and the placement groove.
[0013] Preferably, two sets of locking blocks are symmetrically arranged on both sides of the rotating plate, and the protective cover is provided with corresponding locking slots that match the locking blocks.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] When it is necessary to disassemble and clean the protective cover, the staff can pull the pull plate to release it from the fixing hole through the fixing post. Then, the staff can pull the protective cover to release the T-shaped block from the T-slot, thereby disassembling the protective cover. This makes it easier for the staff to quickly disassemble and install the protective cover, which can greatly improve the efficiency of the staff in disassembling and cleaning the protective cover.
[0016] When the protective cover is removed, the impurities and solidified plastic accumulate in the storage slot inside the cover. By pulling the rotating plate, the staff can quickly clean the impurities and plastic inside the storage slot. After cleaning, the rotation plate can be driven back to its original position by the elasticity of the torsion spring, thus closing the storage slot. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial structural schematic diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the quick-release component separation structure of this utility model;
[0020] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 5 For the present utility model Figure 3 Another perspective structural diagram.
[0022] In the diagram: 1. Injection molding equipment body; 2. Fixed template; 3. Nozzle body; 4. Protective cover; 5. Mounting plate; 6. Rotating plate; 7. T-slot; 8. Storage slot; 9. Limiting hole; 10. Pull plate; 11. Connecting plate; 12. Spring; 13. Limiting post; 14. Fixing post; 15. Fixing hole; 16. T-block; 17. Rotating post; 18. Torsion spring; 19. Placement slot; 20. Card slot; 21. Card block. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0025] like Figure 1 - Figure 5 As shown, this application provides a nozzle protection device for an injection molding machine, including: an injection molding equipment body 1, a nozzle body 3 disposed on the injection molding equipment body 1, a fixed template 2 disposed on the injection molding equipment body 1, a protective cover 4 disposed on the fixed template 2, and further including: a disassembly assembly disposed on the fixed template 2, the disassembly assembly including a fixing hole 15 and a mounting plate 5, the mounting plate 5 being disposed on the fixed template 2, the mounting plate 5 being disposed on a connecting plate 11, the connecting plate 11 being disposed on a fixing post 14, the fixing hole 15 being disposed on the protective cover 4, and the disassembly assembly being used for disassembling and installing the protective cover 4.
[0026] Specifically, such as Figure 4 As shown, the disassembly and assembly assembly also includes two sets of springs 12 symmetrically arranged on the connecting plate 11. One side of the spring 12 is arranged on the mounting plate 5. A pull plate 10 is arranged on the connecting plate 11 and the pull plate 10 penetrates the mounting plate 5. Through the arrangement of the pull plate 10, the two sets of fixing posts 14 can be driven to disengage from the fixing holes 15 at the same time.
[0027] Specifically, such as Figure 4 As shown, two sets of limiting posts 13 are symmetrically arranged on the connecting plate 11, and limiting holes 9 are provided on the mounting plate 5 corresponding to the limiting posts 13. The limiting posts 13 and the limiting holes 9 are matched. Through the cooperation of the limiting posts 13 and the limiting holes 9, it is easy for the staff to observe whether they are all inserted into the fixing holes 15.
[0028] Specifically, such as Figure 4 As shown, a T-shaped block 16 is provided on the side of the protective cover 4 near the fixed template 2, and a T-shaped groove 7 is provided on the mounting plate 5 corresponding to the T-shaped block 16. The T-shaped groove 7 matches the T-shaped block 16. Through the cooperation of the T-shaped block 16 and the T-shaped groove 7, the protective cover 4 can be positioned.
[0029] Specifically, such as Figure 4 As shown, two sets of fixing posts 14 are symmetrically arranged on the side of the connecting plate 11 near the protective cover 4. The fixing holes 15 match the fixing posts 14. The fixing holes 15 and the fixing posts 14 can be used to fix the protective cover 4.
[0030] The protective cover 4 is equipped with a cleaning component, which includes a storage slot 8 on the protective cover 4, a torsion spring 18 on the protective cover 4, and a rotating plate 6 on the torsion spring 18. The cleaning component is used for cleaning the protective cover 4.
[0031] Specifically, such as Figure 4 As shown, the cleaning assembly also includes a placement slot 19 on the protective cover 4. The placement slot 19 is rotatably equipped with a rotating column 17, and the rotating plate 6 is fixedly installed on the outside of the rotating column 17. The rotating column 17 can drive the rotating plate 6 to rotate.
[0032] Specifically, such as Figure 4 As shown, the torsion spring 18 is located on the outside of the rotating column 17 and between the rotating plate 6 and the placement groove 19. The torsion spring 18 can drive the rotating plate 6 back to its original position, thereby enabling the closure of the storage groove 8.
[0033] Specifically, such as Figure 4 As shown, two sets of locking blocks 21 are symmetrically arranged on both sides of the rotating plate 6. The protective cover 4 is provided with a locking groove 20 corresponding to the locking block 21. The locking groove 20 matches the locking block 21. Through the cooperation of the locking groove 20 and the locking block 21, the position of the rotating plate 6 can be fixed.
[0034] In this embodiment: by pulling the pull plate 10, the spring 12 can be compressed, and at the same time, the two sets of fixing columns 14 can be disengaged from the fixing hole 15. Then, by pulling the protective cover 4, the T-shaped block 16 can be disengaged from the T-shaped groove 7, thereby disassembling the protective cover 4. This makes it easier for the staff to move the protective cover 4 to other places for cleaning. Since the protective cover 4 is provided with a storage groove 8, the accumulated impurities and solidified plastic are piled up in the storage groove 8. By pulling the rotating plate 6, the locking block 21 is disengaged from the locking groove 20, which makes it easier for the staff to quickly clean the impurities and plastic in the storage groove 8.
[0035] The specific solution is as follows: When cleaning the protective cover 4 is required, since the fixing column 14 is initially stuck in the fixing hole 15, the worker can pull the pull plate 10, which will cause both sets of fixing columns 14 to simultaneously disengage from the fixing hole 15 via the connecting plate 11. Then, by pulling the protective cover 4, the worker can slide the T-shaped block 16 out of the T-shaped groove 7, thereby disassembling the protective cover 4. After the protective cover 4 is moved to another location, by pulling the rotating plate 6, the locking block 21 is disengaged from the locking groove 20, making it easier for the worker to centrally clean the solidified plastic and impurities in the storage tank 8. After cleaning is completed... When the operator releases the rotating plate 6, the elastic force of the torsion spring 18 can drive the rotating plate 6 back to its original position, so that the locking block 21 is locked into the locking groove 20, thus fixing the rotating plate 6. When it is necessary to reinstall the protective cover 4 back to its original position, the T-shaped block 16 is locked into the T-shaped groove 7 to achieve the pre-positioning of the protective cover 4. At this time, the fixing hole 15 is aligned with the fixing post 14. When the operator releases the pull plate 10, the elastic force of the two sets of springs 12 can drive the fixing post 14 to be firmly locked into the fixing hole 15, thus installing the protective cover 4. Through the cooperation of the limiting post 13 and the limiting hole 9, it is easy to observe the state of the fixing post 14 being locked into the fixing hole 15.
[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 nozzle protection device for an injection molding machine, comprising: An injection molding equipment body (1), wherein a nozzle body (3) is provided on the injection molding equipment body (1), a fixed template (2) is provided on the injection molding equipment body (1), and a protective cover (4) is provided on the fixed template (2), characterized in that it further includes: The disassembly and assembly assembly is set on the fixed template (2). The disassembly and assembly assembly includes a fixing hole (15) and an mounting plate (5). The mounting plate (5) is set on the fixed template (2). A connecting plate (11) is provided on the mounting plate (5). A fixing post (14) is provided on the connecting plate (11). The fixing hole (15) is set on the protective cover (4). The disassembly and assembly assembly is used for disassembling and installing the protective cover (4). A cleaning component is provided on a protective cover (4). The cleaning component includes a storage slot (8) provided on the protective cover (4). A torsion spring (18) is provided on the protective cover (4). A rotating plate (6) is provided on the torsion spring (18). The cleaning component is used for cleaning the protective cover (4).
2. The injection molding machine nozzle protection device according to claim 1, characterized in that, The assembly and disassembly assembly also includes two sets of springs (12) symmetrically arranged on the connecting plate (11). One side of the springs (12) is arranged on the mounting plate (5). The connecting plate (11) is provided with a pull plate (10), and the pull plate (10) penetrates the mounting plate (5).
3. The injection molding machine nozzle protection device according to claim 1, characterized in that, Two sets of limiting posts (13) are symmetrically arranged on the connecting plate (11), and limiting holes (9) are provided on the mounting plate (5) corresponding to the limiting posts (13). The limiting posts (13) and the limiting holes (9) are matched.
4. The injection molding machine nozzle protection device according to claim 1, characterized in that, A T-shaped block (16) is provided on the side of the protective cover (4) near the fixed template (2), and a T-shaped groove (7) is provided on the mounting plate (5) corresponding to the T-shaped block (16), and the T-shaped groove (7) matches the T-shaped block (16).
5. The injection molding machine nozzle protection device according to claim 1, characterized in that, Two sets of fixing posts (14) are symmetrically arranged on the side of the connecting plate (11) near the protective cover (4), and the fixing holes (15) are matched with the fixing posts (14).
6. The injection molding machine nozzle protection device according to claim 1, characterized in that, The cleaning assembly also includes a placement slot (19) on the protective cover (4), the placement slot (19) is rotatably provided with a rotating column (17), and the rotating plate (6) is fixedly provided on the outside of the rotating column (17).
7. The injection molding machine nozzle protection device according to claim 1, characterized in that, The torsion spring (18) is disposed on the outside of the rotating column (17) and is disposed between the rotating plate (6) and the placement groove (19).
8. The injection molding machine nozzle protection device according to claim 1, characterized in that, Two sets of locking blocks (21) are symmetrically arranged on both sides of the rotating plate (6). The protective cover (4) is provided with a slot (20) corresponding to the locking block (21), and the slot (20) matches the locking block (21).