A plastic mold with self-cleaning function
By setting up cleaning and auxiliary mechanisms on the plastic mold, and using asynchronous motors and vacuum cleaners to achieve automated cleaning, the problem of low efficiency in traditional manual cleaning is solved, and the cleaning effect and mold life are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN GUANGLIAN PLASTIC MOLD PROD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-31
AI Technical Summary
Plastic molds are prone to leaving impurities such as molten plastic and release agents during use. Traditional manual cleaning is inefficient and may damage the mold, affecting molding quality and lifespan.
Design a self-cleaning plastic mold. By setting up a cleaning mechanism and an auxiliary mechanism, and using an asynchronous motor, hydraulic cylinder and electric motor to drive the brush rod to rotate, combined with a vacuum cleaner to remove impurities, automated cleaning is achieved.
It achieves efficient and automatic cleaning of mold surfaces, avoids impurity residue, improves cleaning efficiency and quality, protects mold surfaces, and reduces labor costs and downtime.
Smart Images

Figure CN224575992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning technology, specifically a plastic mold with self-cleaning function. Background Technology
[0002] In modern industrial production, plastic molds are used as key tools for molding plastic products and are widely used in many fields such as electronics and automobiles. With the continuous growth of demand for plastic products and the increasing requirements for product quality, however, during the use of plastic molds, substances such as plastic melt, release agent, and additives will remain on the mold surface. If these residues are not cleaned in time, they will affect the molding quality of plastic products, reduce the service life of the mold, and increase production costs and downtime maintenance time.
[0003] During the production process, plastic mold surfaces are prone to leaving behind plastic debris, mold release agent residue, oil stains, and other impurities. Traditional manual cleaning methods are not only inefficient and costly in terms of manpower and time, but also difficult to guarantee the cleaning effect. In addition, improper operation during manual cleaning may cause scratches and other damage to the mold surface, affecting the service life of the mold.
[0004] In view of this, we propose a plastic mold with self-cleaning function. Utility Model Content
[0005] The purpose of this invention is to provide a plastic mold with a self-cleaning function to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A self-cleaning plastic mold includes a base on which an injection molding machine is fixedly mounted. The injection molding machine includes a first mold and a second mold. A cleaning mechanism is provided on the injection molding machine, the cleaning mechanism comprising: The slide rail is fixedly installed at the top of the injection molding machine. A slider is slidably installed inside the slide rail. An asynchronous motor is fixedly installed on the outer wall of the slide rail. A first threaded rod is fixedly installed at the output end of the asynchronous motor. The two ends of the first threaded rod are rotatably installed inside the slide rail through bearing components. The outer wall of the first threaded rod is threaded into the inside of the slider. A U-shaped frame is fixedly installed at the top of the slider. An asynchronous motor is fixedly installed on the outer wall of the U-shaped frame. A second threaded rod is fixedly installed at the output end of the asynchronous motor. The two ends of the second threaded rod are rotatably installed inside the two sides of the U-shaped frame through bearing components. The outer wall of the second threaded rod is threadedly engaged with the top of the T-block. The outer wall of the T-block slides against the inside of the bottom end of the U-shaped frame. A hydraulic cylinder fixing end is fixedly installed at the bottom end of the T-block. A rectangular block is fixedly installed at the piston end of the hydraulic cylinder. An electric motor is fixedly installed on the outer wall of the bottom end of the rectangular block. The output end of the electric motor is fixedly installed on one end of a rotating shaft. The outer wall of the rotating shaft is rotatably installed inside the rectangular block through a bearing. A brush rod is fixedly installed on the other end of the rotating shaft. Brush bristles are fixedly installed on the outer wall of the brush rod and are attached to the outer wall of the second mold.
[0007] In a further embodiment, the brush rod is provided in multiple sets.
[0008] In a further embodiment, the bristles on a single brush handle are arranged in multiple sets, resulting in a better cleaning effect.
[0009] In a further embodiment, the bristles are made of a flexible material.
[0010] In a further embodiment, an auxiliary mechanism is provided on the rectangular block. The auxiliary mechanism includes a support plate. The support plate is fixedly installed on the outer wall of the top of the rectangular block. A vacuum cleaner is fixedly installed on the top of the support plate. A curved pipe is fixedly installed on the suction end of the vacuum cleaner. A flat nozzle is fixedly installed on the other end of the curved pipe.
[0011] In a further embodiment, the rectangular block has a groove on its sidewall, and the bent pipe is located inside the groove.
[0012] In a further embodiment, the flat opening faces directly toward the brush handle, and the two do not interfere with each other, resulting in better absorption of impurities.
[0013] Compared with the prior art, this utility model provides a plastic mold with self-cleaning function, which has the following beneficial effects: 1. This self-cleaning plastic mold, in order to achieve automated cleaning of the plastic mold and improve cleaning efficiency and quality, is equipped with a cleaning mechanism. The first threaded rod is driven by an asynchronous motor to rotate, which drives the slider to slide on the slide rail. At the same time, the asynchronous motor drives the second threaded rod to rotate, which moves the T-block within the U-shaped frame. Combined with the extension and retraction of the hydraulic cylinder and the rotation of the brush rod driven by the electric motor, the purpose of comprehensive and efficient cleaning of the outer wall of the second mold is achieved.
[0014] 2. This self-cleaning plastic mold, in order to improve the cleaning effect of impurities and avoid impurities remaining or flying during the cleaning process, has an auxiliary mechanism that works with a vacuum cleaner to generate suction. The curved tube and flat nozzle are used to remove the impurities cleaned by the brush rod in time. At the same time, the groove protects and positions the curved tube, thereby achieving a better impurity absorption effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of part of the structure of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is a partial structural diagram of the present utility model.
[0016] Explanation of icon numbers: 1. Base; 2. Injection molding machine; 3. First mold; 4. Second mold; Cleaning mechanism; 51. Slide rail; 52. Slider; 53. Asynchronous motor; 54. First threaded rod; 55. U-shaped frame; 56. Asynchronous motor; 57. Second threaded rod; 58. T-block; 59. Hydraulic cylinder; 510. Rectangular block; 511. Electric motor; 512. Rotating shaft; 513. Brush rod; 514. Brush bristles; 6. Auxiliary mechanism; 61. Support plate; 62. Vacuum cleaner; 63. Bend; 64. Groove; 65. Flat opening. Detailed Implementation
[0017] 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.
[0018] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0019] Please see Figures 1-5 This utility model provides a technical solution: A plastic mold with self-cleaning function includes a base 1, on which an injection molding machine 2 is fixedly installed. The injection molding machine 2 includes a first mold 3 and a second mold 4.
[0020] In one embodiment of this utility model, the injection molding machine 2 is provided with a cleaning mechanism 5, which includes a slide rail 51. The slide rail 51 is fixedly installed at the top of the injection molding machine 2. A slider 52 is slidably installed inside the slide rail 51. An asynchronous motor 53 is fixedly installed on the outer wall of the slide rail 51. A first threaded rod 54 is fixedly installed at the output end of the asynchronous motor 53. The two ends of the first threaded rod 54 are rotatably installed inside the slide rail 51 through bearing components. The outer wall of the first threaded rod 54 is threaded into the inside of the slider 52. A U-shaped frame 55 is fixedly installed at the top of the slider 52. An asynchronous motor 56 is fixedly installed on the outer wall of the U-shaped frame 55. A second threaded rod 57 is fixedly installed at the output end of the asynchronous motor 56. The two ends of the second threaded rod 57 are rotatably installed inside both sides of the U-shaped frame 55 through bearing components. The outer wall of the threaded rod 57 is threaded to the top of the T-block 58. The outer wall of the T-block 58 slides against the inside of the bottom of the U-shaped frame 55. The bottom of the T-block 58 is fixedly installed with the fixed end of the hydraulic cylinder 59. The piston end of the hydraulic cylinder 59 is fixedly installed with the rectangular block 510. The outer wall of the bottom of the rectangular block 510 is fixedly installed with the motor 511. The output end of the motor 511 is fixedly installed at one end of the rotating shaft 512. The outer wall of the rotating shaft 512 is rotatably installed inside the rectangular block 510 through the bearing. The other end of the rotating shaft 512 is fixedly installed with the brush rod 513. There are multiple sets of brush rods 513. The outer wall of the brush rod 513 is fixedly installed with bristles 514. There are multiple sets of bristles 514 on a single set of brush rods 513. The bristles 514 are made of flexible material and adhere to the outer wall of the second mold 4.
[0021] In this embodiment, the asynchronous motor 53 starts and controls its speed, driving the first threaded rod 54 to rotate clockwise. According to the principle of threaded transmission, the slider 52 generates linear motion speed within the slide rail 51, driving the U-shaped frame 55 to move along the X-axis. Simultaneously, the asynchronous motor 56 drives the second threaded rod 57 to rotate counterclockwise, and the T-shaped block 58 moves laterally inside the bottom end of the U-shaped frame 55. When the U-shaped frame 55 moves to the designated position, the hydraulic cylinder 59 extends its piston end, driving the rectangular block 510 to descend. When the bristles 514 contact the outer wall of the second mold 4... Upon contact, the hydraulic cylinder 59 stops moving. At this time, the motor 511 starts, driving the rotating shaft 512 to rotate. The high-density flexible bristles 514 on the three sets of brush rods 513 perform spiral brushing on the outer wall of the second mold 4. After cleaning one area, the asynchronous motor 53 reverses to drive the slider 52 back. At the same time, the asynchronous motor 56 adjusts the position of the T-block 58, and the hydraulic cylinder 59 slightly rises to avoid the bristles 514 scratching the mold surface. After reaching the new cleaning position, the above cleaning action is repeated. After cleaning is completed, all mechanisms reset, and the system enters standby mode.
[0022] In one embodiment of this utility model, an auxiliary mechanism 6 is provided on the rectangular block 510. The auxiliary mechanism 6 includes a support plate 61. The support plate 61 is fixedly installed on the outer wall of the top of the rectangular block 510. A vacuum cleaner 62 is fixedly installed on the top of the support plate 61. A curved pipe 63 is fixedly installed on the suction end of the vacuum cleaner 62. A groove 64 is opened on the side wall of the rectangular block 510, and the curved pipe 63 is located inside the groove 64. A flat opening 65 is fixedly installed on the other end of the curved pipe 63. The flat opening 65 faces the brush rod 513 and the two do not interfere with each other.
[0023] In this embodiment, during the brushing process, the vacuum cleaner 62 is started simultaneously. The cleaned impurities are sucked in through the flat opening 65 under the action of airflow, and enter the dust collection box of the vacuum cleaner 62 through the bent tube 63. Since the flat opening 65 and the brush rod 513 are kept at a distance and their movement trajectories are orthogonal, the impurity absorption efficiency is improved. The groove 64 protects the bent tube 63 to prevent it from colliding with the mold during high-speed movement. At the same time, the built-in clamp structure ensures that the position of the bent tube 63 will not shift during operation.
[0024] All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the asynchronous motor 53, asynchronous motor 56, electric motor 511, hydraulic cylinder 59, and vacuum cleaner 62. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A plastic mold with a self-cleaning function, comprising a base (1), wherein an injection molding machine (2) is fixedly mounted on the base (1), and the injection molding machine (2) comprises a first mold (3) and a second mold (4), characterized in that: The injection molding machine (2) is equipped with a cleaning mechanism (5), which includes: The slide rail (51) is fixedly installed at the top of the injection molding machine (2). A slider (52) is slidably installed inside the slide rail (51). An asynchronous motor (53) is fixedly installed on the outer wall of the slide rail (51). A first threaded rod (54) is fixedly installed at the output end of the asynchronous motor (53). The two ends of the first threaded rod (54) are rotatably installed inside the slide rail (51) through bearing components. The outer wall of the first threaded rod (54) is threaded into the inside of the slider (52). A U-shaped frame (55) is fixedly installed at the top of the slider (52). An asynchronous motor (56) is fixedly installed on the outer wall of the U-shaped frame (55). A second threaded rod (57) is fixedly installed at the output end of the asynchronous motor (56). The two ends of the second threaded rod (57) are rotatably installed inside the two sides of the U-shaped frame (55) through bearing components. The outer wall of the second threaded rod (57) is threadedly engaged with the top of the T-block (58). The outer wall of the T-block (58) slides against the inside of the bottom end of the U-shaped frame (55). The bottom end of the T-block (58) is fixedly installed with the fixed end of the hydraulic cylinder (59). The piston end of the hydraulic cylinder (59) is fixedly installed with a rectangular block (510). The electric motor (511) is fixedly installed on the outer wall of the bottom end of the rectangular block (510). The output end of the electric motor (511) is fixedly installed on one end of the rotating shaft (512). The outer wall of the rotating shaft (512) is rotatably installed inside the rectangular block (510) through a bearing. The other end of the rotating shaft (512) is fixedly installed with a brush rod (513). The outer wall of the brush rod (513) is fixedly installed with bristles (514). The bristles (514) are attached to the outer wall of the second mold (4).
2. The plastic mold with self-cleaning function according to claim 1, characterized in that: The brush rod (513) is provided in multiple sets.
3. The plastic mold with self-cleaning function according to claim 1, characterized in that: The brush bristles (514) on the single brush rod (513) are provided in multiple sets.
4. The plastic mold with self-cleaning function according to claim 1, characterized in that: The bristles (514) are made of a flexible material.
5. The plastic mold with self-cleaning function according to claim 1, characterized in that: An auxiliary mechanism (6) is provided on the rectangular block (510). The auxiliary mechanism (6) includes a support plate (61). The support plate (61) is fixedly installed on the outer wall of the top of the rectangular block (510). A vacuum cleaner (62) is fixedly installed on the top of the support plate (61). A bent pipe (63) is fixedly installed on the suction end of the vacuum cleaner (62). A flat opening (65) is fixedly installed on the other end of the bent pipe (63).
6. The plastic mold with self-cleaning function according to claim 5, characterized in that: The rectangular block (510) has a groove (64) on its side wall, and the bent pipe (63) is located inside the groove (64).
7. The plastic mold with self-cleaning function according to claim 5, characterized in that: The flat opening (65) faces the brush handle (513) directly, and the two do not interact.