A rapid cleaning device for injection molding machine nozzles

By designing a rapid cleaning device for injection molding machine nozzles, and utilizing the coordinated work of the sliding component and the cleaning component, full-coverage automatic cleaning of the nozzles is achieved, solving the problems of nozzle clogging and incomplete manual cleaning, and improving cleaning efficiency and nozzle lifespan.

CN224275938UActive Publication Date: 2026-05-26CHONGQING QUNQIANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING QUNQIANG TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing injection molding machine nozzles are prone to clogging during long-term use, leading to poor molding. Furthermore, manual cleaning is often incomplete and can easily damage the nozzles, affecting production efficiency and equipment lifespan.

Method used

A rapid cleaning device for injection molding machine nozzles was designed, comprising a sliding assembly, a clamping assembly, and a cleaning assembly. The sliding assembly drives the nozzle into the roller brush area, and the inner and outer surfaces of the nozzle are automatically cleaned by the synchronously rotating roller brush and cleaning rod. The device includes the coordinated operation of components such as a clamping cylinder, a telescopic cylinder, a linear module, and a cleaning motor.

Benefits of technology

It achieves full-coverage automatic cleaning of nozzles, ensuring unobstructed internal flow, reducing manual intervention, improving cleaning thoroughness, extending nozzle life, and increasing production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A rapid cleaning device for injection molding machine nozzles includes a frame, a sliding assembly, and a cleaning assembly, which are arranged adjacent to each other on the frame. The sliding assembly has a sliding section, on which a clamping assembly is fixedly connected for holding the nozzle. The cleaning assembly includes a support frame, a drive mechanism, a linear module, a cleaning motor, a cleaning rod, and roller brushes. The cleaning motor moves vertically via the linear module, driving the cleaning rod to achieve positioning. Two roller brushes are arranged side-by-side and rotatably connected to the support frame, and the drive mechanism drives them to rotate synchronously. The sliding section moves the nozzle between the roller brushes for efficient cleaning of its outer surface. This device has a simple structure; the sliding assembly consists of a slide rail, a sliding seat, and a telescopic cylinder, while the clamping assembly uses a clamping cylinder to automatically clamp and release the nozzle, improving cleaning efficiency and reducing manual intervention.
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Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, specifically to a rapid cleaning device for injection molding machine nozzles. Background Technology

[0002] During long-term use, injection molding machines may experience nozzle blockage due to molten plastic residue, carbonization, or impurities, leading to poor molding of the injection molded products. To ensure injection molding quality and stable equipment operation, the nozzles must be cleaned regularly.

[0003] Currently, the most common cleaning method in existing technologies is for operators to manually clean the nozzles on-site using tools such as steel needles and brushes when nozzle blockage or a decline in injection molding quality is detected.

[0004] Due to the limited space available for manual on-site cleaning, cleaning tools cannot penetrate deep into the nozzle orifice, resulting in incomplete cleaning and potential damage to the nozzle opening during operation, thus affecting nozzle lifespan. This is particularly problematic in scenarios involving multiple molds or multiple injection molding machines operating continuously, severely impacting production rhythm and line efficiency.

[0005] Therefore, in order to solve the above problems, there is an urgent need for a rapid cleaning device for injection molding machine nozzles to replace traditional manual cleaning methods and reduce the frequency of downtime maintenance. Summary of the Invention

[0006] This utility model addresses the shortcomings of existing technologies by proposing a rapid cleaning device for injection molding machine nozzles. The specific technical solution is as follows:

[0007] A rapid cleaning device for injection molding machine nozzles, characterized in that:

[0008] The system includes a frame, a sliding assembly, and a cleaning assembly, wherein the sliding assembly and the cleaning assembly are disposed adjacent to each other on the frame.

[0009] The sliding assembly has a sliding part, and a clamping assembly is fixedly connected to the sliding part. The clamping assembly is used to clamp the nozzle.

[0010] The cleaning assembly includes a support frame, a drive mechanism, a linear module, a cleaning motor, a cleaning rod, and a roller brush;

[0011] The linear module is vertically fixedly installed on the top of the support frame. A bracket is fixedly connected to the slider of the linear module. The cleaning motor is fixedly installed on the bracket. The cleaning rod is connected to the output end of the cleaning motor.

[0012] The two roller brushes are arranged side by side and rotatably connected to the support frame. The drive mechanism is used to drive the roller brushes to rotate synchronously.

[0013] The sliding part can drive the nozzle between the two roller brushes to complete the cleaning of the outer surface of the nozzle.

[0014] To better realize this utility model, it can be further made as follows:

[0015] The sliding assembly includes a slide rail, a sliding seat, and a telescopic cylinder;

[0016] The sliding seat is the sliding part of the sliding assembly;

[0017] Two slide rails are arranged side by side on the top of the frame. The sliding seat is slidably mounted on the slide rails. The telescopic end of the telescopic cylinder is connected to the sliding seat. The telescopic cylinder is used to drive the sliding seat to slide along the axial direction of the slide rails.

[0018] Furthermore: The drive mechanism includes a drive motor, a transmission shaft, and a drive shaft;

[0019] The drive mechanism includes a drive motor, a transmission shaft, and a drive shaft;

[0020] The output end of the drive motor is fixedly connected to the inner end of one of the roller brushes, and the inner end of the roller brush is fixedly fitted with a drive gear.

[0021] The drive shaft is rotatably connected inside the support frame, and a drive pulley and a driven gear meshing with the drive gear are sequentially fixed on the drive shaft along the axial direction.

[0022] Another roller brush has a driven pulley fixedly fitted at its inner end, and a transmission belt is provided between the driving pulley and the driven pulley.

[0023] Furthermore, a tensioning wheel is rotatably connected within the support frame, and the tensioning wheel is located between the driving pulley and the driven pulley, and is in contact with the transmission belt.

[0024] Furthermore, the bottom of the support frame is provided with a recycling box, which is located below the two roller brushes.

[0025] Furthermore, the clamping assembly employs a clamping cylinder.

[0026] The beneficial effects of this utility model are as follows:

[0027] First, the overall structure is simple. By setting up a sliding component and a clamping component, the injection molding machine nozzle can be stably clamped and enter the cleaning area along a set trajectory. The sliding component includes a slide rail, a sliding seat, and a telescopic cylinder. The clamping component adopts a clamping cylinder structure, which can realize automatic clamping and release of the nozzle, reducing manual intervention.

[0028] Secondly, by setting up two roller brushes arranged side by side and driven by a drive mechanism to rotate synchronously, the outer surface of the nozzle can be cleaned in a fully enclosed manner. Compared with the existing manual wiping method, this structure can achieve full coverage brushing of the nozzle surface, significantly improving the thoroughness of cleaning.

[0029] Third, the cleaning motor is mounted on the slider of the linear module, enabling precise up-and-down insertion of the cleaning rod for deep cleaning of the nozzle orifice. Compared to manual needle-punching, this structure automatically extends into the nozzle orifice for rotating brushing, ensuring unobstructed flow and effectively preventing nozzle clogging. Attached Figure Description

[0030] Figure 1 This is a structural diagram of the present invention;

[0031] Figure 2 This is the first structural diagram of the cleaning component;

[0032] Figure 3 This is the second structural diagram of the cleaning component;

[0033] Figure 4 for Figure 3 AA section view;

[0034] The attached diagram is as follows: 1. Frame; 2. Cleaning component; 3. Slide rail; 4. Sliding seat; 5. Telescopic cylinder; 6. Mounting bracket; 7. Clamping cylinder; 8. Support frame; 9. Linear module; 10. Cleaning motor; 11. Cleaning rod; 12. Roller brush; 13. Drive motor; 14. Transmission shaft; 15. Tensioning shaft; 16. Drive gear; 17. Drive pulley; 18. Drive pulley; 19. Tensioning pulley; 20. Transmission belt; 21. Recycling box; 22. Detailed Implementation

[0035] 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.

[0036] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] like Figure 1 to Figure 4 As shown:

[0038] A rapid cleaning device for injection molding machine nozzles includes a frame 1, a sliding assembly, and a cleaning assembly 2. The sliding assembly and the cleaning assembly 2 are arranged adjacent to each other on the frame 1. The sliding assembly is used to move the nozzle to the cleaning area, and the cleaning assembly 2 is used to efficiently clean the outer surface and inner hole of the injection molding machine nozzle.

[0039] The sliding assembly includes a slide rail 3, a sliding seat 4, and a telescopic cylinder 5. Two slide rails 3 are installed side by side on the top of the frame 1. The sliding seat 4 is slidably installed on the slide rail 3. The sliding seat 4 is the sliding part of the sliding assembly. The clamping assembly is fixedly connected to the sliding seat 4.

[0040] The clamping assembly includes a mounting bracket 6 and a clamping cylinder 7. The clamping cylinder 7 is fixedly connected to the sliding seat 4 via the mounting bracket 6, with the grippers of the clamping cylinder 7 facing forward. The grippers of the clamping cylinder 7 can be equipped with arc-shaped rubber pads or soft anti-slip contact surfaces according to the nozzle shape to prevent damage to the nozzle during clamping.

[0041] The telescopic cylinder 5 is horizontally installed on the top of the frame 1. The telescopic end of the telescopic cylinder 5 is connected to the rear of the sliding seat 4. The reciprocating motion of the cylinder drives the sliding seat 4 to slide along the axial direction of the slide rail 3, thereby driving the nozzle to move back and forth.

[0042] The cleaning component 2 includes a support frame 8, a drive mechanism, a linear module 9, a cleaning motor 10, a cleaning rod 11, and a roller brush 12. The support frame 8 is fixedly installed on the left side of the top of the frame 1.

[0043] The linear module 9 is installed vertically and its bottom is fixed to the top of the support frame 8. An L-shaped bracket is fixedly connected to the slider of the linear module 9. The cleaning motor 10 is fixedly installed on the L-shaped bracket, and a cleaning rod 11 is connected to the output end of the cleaning motor 10. The lower end of the cleaning rod 11 is equipped with a soft brush head according to the nozzle orifice diameter, which is used to insert into the nozzle orifice for internal cleaning.

[0044] Two roller brushes 12 are arranged side by side on the support frame 8, with their axes parallel to each other and parallel to the direction of the slide rail 3. The roller brushes 12 are brush cylinder structures, and are rotatably connected to the side plate of the support frame 8 via bearings.

[0045] The drive mechanism includes a drive motor 13, a transmission shaft 14, a tensioning shaft 15, a drive gear 16, a driven gear 17, a drive pulley 18, a driven pulley 19, and a tensioning pulley 20.

[0046] The drive shaft 14 is horizontally rotatably connected to the middle of the support frame 8 through two bearing seats. The output end of the drive motor 13 is fixedly connected to the inner end of a roller brush 12 through a coupling. The drive motor 13 directly drives the roller brush 12 to rotate. A drive gear 16 is fixedly sleeved on the inner end of the roller brush 12. A drive pulley 18 and a driven gear 17 are fixedly sleeved on the drive shaft 14 along the axial direction. The driven gear 17 meshes with the drive gear 16, and the driven gear 17 drives the drive shaft 14 to rotate.

[0047] Another roller brush 12 has a driven pulley 19 fixedly fitted at its inner end. A transmission belt 21 is fitted between the driving pulley 18 and the driven pulley 19. The transmission belt 21 is used to achieve synchronous driving of the other roller brush 12. To ensure stable and reliable transmission, a tensioning pulley 20 is added between the driving pulley 18 and the driven pulley 19. The tensioning pulley 20 is mounted on the support frame 8 through a tensioning shaft 15 and cooperates with the transmission belt 21 to adjust the tension of the transmission belt 21.

[0048] A recycling box 22 is fixedly installed at the bottom of the support frame 8. The recycling box 22 is made of metal and is located below the two roller brushes 12 with its opening facing upward. It is used to receive the molten residue that falls off during the cleaning process for easy subsequent unified processing.

[0049] The working process of this utility model is as follows: During operation, the clamping cylinder opens its grippers to hold the upper end of the nozzle. Subsequently, the telescopic cylinder 5 pushes the sliding seat 4 to slide a set distance along the slide rail 3, thereby moving the nozzle between the two roller brushes 12.

[0050] Next, the drive motor 13 starts, driving the directly connected roller brush 12 to rotate. Simultaneously, the drive gear 16 fixed to the inner end of the roller brush 12 drives the driven gear 17 on the meshing transmission shaft 14 to rotate, thereby driving the transmission shaft 14 to rotate. The drive pulley 18 fixed to the transmission shaft 14 drives the driven pulley 19 fixed to the inner end of the other roller brush 12 to rotate via the transmission belt 21, thus achieving synchronous rotation of the two roller brushes 12 and efficiently cleaning the outer surface of the nozzle. At the same time, the linear module 9 drives the cleaning motor 10 vertically downward, and the cleaning rod 11 is inserted into the nozzle hole. The cleaning motor 10 starts, driving the cleaning rod 11 to rotate and clean the inner hole of the nozzle. During the cleaning process, the impurities brushed off fall into the collection box 22 below by gravity.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid cleaning device for injection molding machine nozzles, characterized in that: The system includes a frame, a sliding assembly, and a cleaning assembly, wherein the sliding assembly and the cleaning assembly are disposed adjacent to each other on the frame. The sliding assembly has a sliding part, and a clamping assembly is fixedly connected to the sliding part. The clamping assembly is used to clamp the nozzle. The cleaning assembly includes a support frame, a drive mechanism, a linear module, a cleaning motor, a cleaning rod, and a roller brush; The linear module is vertically fixedly installed on the top of the support frame. A bracket is fixedly connected to the slider of the linear module. The cleaning motor is fixedly installed on the bracket. The cleaning rod is connected to the output end of the cleaning motor. The two roller brushes are arranged side by side and rotatably connected to the support frame. The drive mechanism is used to drive the roller brushes to rotate synchronously. The sliding part can drive the nozzle between the two roller brushes to complete the cleaning of the outer surface of the nozzle.

2. The rapid cleaning device for injection molding machine nozzles according to claim 1, characterized in that: The sliding assembly includes a slide rail, a sliding seat, and a telescopic cylinder; The sliding seat is the sliding part of the sliding assembly; Two slide rails are arranged side by side on the top of the frame. The sliding seat is slidably mounted on the slide rails. The telescopic end of the telescopic cylinder is connected to the sliding seat. The telescopic cylinder is used to drive the sliding seat to slide along the axial direction of the slide rails.

3. The rapid cleaning device for injection molding machine nozzles according to claim 2, characterized in that: The drive mechanism includes a drive motor, a transmission shaft, and a drive shaft; The output end of the drive motor is fixedly connected to the inner end of one of the roller brushes, and the inner end of the roller brush is fixedly fitted with a drive gear. The drive shaft is rotatably connected inside the support frame, and a drive pulley and a driven gear meshing with the drive gear are sequentially fixed on the drive shaft along the axial direction. Another roller brush has a driven pulley fixedly fitted at its inner end, and a transmission belt is provided between the driving pulley and the driven pulley.

4. The rapid cleaning device for injection molding machine nozzles according to claim 3, characterized in that: A tensioning wheel is rotatably connected within the support frame, and the tensioning wheel is located between the driving pulley and the driven pulley, and is in contact with the transmission belt.

5. The rapid cleaning device for injection molding machine nozzles according to claim 4, characterized in that: The bottom of the support frame is equipped with a recycling box, which is located below the two roller brushes.

6. The rapid cleaning device for injection molding machine nozzles according to claim 5, characterized in that: The clamping assembly uses a clamping cylinder.