Cleaning device for air inlet hole of mold
The automatic cleaning of mold air vents is achieved through the electric push rod control and dustproof frame design of the mold air vent cleaning device, preventing secondary contamination by impurities and improving mold performance and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIYINCHENG PRECISE MOLD CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
When using traditional high-pressure airflow to remove dust from mold pores, impurities can easily fall into the lower mold area, causing secondary pollution and affecting mold performance and production efficiency.
A mold air inlet cleaning device was designed. The upper mold is raised and lowered by an electric push rod. The positioning pin and positioning hole ensure the mold closing accuracy. The fan and filter box are used to achieve automatic cleaning. The dustproof frame forms a closed space to prevent secondary pollution from impurities.
It effectively prevents impurities from falling, keeps pores clear, improves mold working efficiency and product quality, and solves the problem of secondary pollution caused by traditional cleaning methods.
Smart Images

Figure CN224145212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to a mold air inlet cleaning device. Background Technology
[0002] During use, the pores of a mold are easily clogged by impurities such as oil, iron filings, and dust, affecting the mold's venting performance and product quality. The purpose of a mold pore cleaning device is to effectively clean the mold pores through various methods, ensuring that the pores are unobstructed, thereby guaranteeing the normal operation of the mold and improving production efficiency and product quality.
[0003] In the mold pore cleaning process, traditional pneumatic cleaning devices usually use high-pressure airflow to remove dust and impurities inside the pores. However, since the mold pores are generally located on the top of the upper mold, this cleaning method can easily cause impurities to be driven downward by the airflow and fall to the lower mold area, causing secondary pollution. This not only increases the difficulty of cleaning and maintaining the lower mold, but may also cause problems such as wear on the mating surfaces of the lower mold and product molding defects, affecting the mold performance and production efficiency. Therefore, a mold pore cleaning device is needed. Utility Model Content
[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a mold air inlet cleaning device that can solve the problem that when using high-pressure airflow to remove dust and impurities inside the air inlet, the impurities are easily driven by the airflow to fall downwards to the lower mold area, causing secondary pollution of the impurities and affecting the mold's performance and production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold air inlet cleaning device, comprising a device support and an upper mold and air inlet cleaning mechanism. The upper mold and air inlet cleaning mechanism includes a top plate, a filter box, a fan, an air inlet pipe, an electric push rod, an upper mold, an air inlet, and a sealing ring. The top plate is fixedly connected to the surface of the device support, the filter box is fixedly connected to the top of the top plate, the fan is fixedly connected to the top of the top plate and is fixedly connected to the filter box, the air inlet pipe is fixedly connected to the surface of the filter box and extends to the bottom of the top plate, there are two electric push rods, both of which are fixedly connected to the bottom of the top plate, the upper mold is fixedly connected to the bottom of the electric push rods and is slidably connected to the device support, the air inlet is fixedly connected to the top of the upper mold, and the sealing ring is fixedly sleeved on the outer surface of the air inlet. The outer wall of the air inlet is adapted to the inner wall size of the air inlet pipe.
[0006] Preferably, a device base is fixedly connected to the bottom of the device support, and a lower mold is fixedly connected to the top of the device base.
[0007] Preferably, a lower limit frame is fixedly connected to the surface of the lower mold, and a dustproof frame is slidably connected to the surface of the lower mold.
[0008] Preferably, a motor is fixedly connected to the top of the device bracket, and a threaded rod is fixedly connected to the output end of the motor.
[0009] Preferably, the outer surface of the threaded rod is threaded with a movable block, and the movable block is fixedly connected to the surface of the dustproof frame.
[0010] Preferably, an upper limit frame is fixedly connected to the surface of the upper mold, and the upper limit frame is located directly above the dustproof frame.
[0011] Preferably, the bottom of the upper mold is fixedly connected with multiple positioning posts, and the top of the lower mold is provided with multiple positioning holes that are adapted to the positioning posts.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This mold air inlet cleaning device uses an electric push rod to control the upper mold lifting and lowering to open and close the mold. The positioning pins and positioning holes cooperate to ensure the mold closing accuracy. The air inlets ensure the cavity filling quality. During cleaning, the fan extracts impurities from the air inlets through the air inlet pipe and collects them through the filter box. The dustproof frame is driven by the motor to form a closed space to prevent secondary pollution. The overall structure realizes automatic cleaning of air inlets and impurities, keeps the air inlets unobstructed, improves mold working efficiency and product quality, and solves the problem that when using high-pressure airflow to blow away dust and impurities inside the air inlets, the impurities are easily driven downward by the airflow and fall to the lower mold area, causing secondary pollution and affecting the mold performance and production efficiency. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a schematic diagram of the main body of this utility model;
[0016] Figure 2 For the present utility model Figure 1 Schematic diagram at point A in the middle;
[0017] Figure 3 This is a schematic diagram of the dustproof frame of this utility model;
[0018] Figure 4 This is a schematic diagram of the motor of this utility model.
[0019] Reference numerals in the attached drawings: 1. Device support; 2. Top plate; 3. Filter box; 4. Fan; 5. Air inlet pipe; 6. Electric push rod; 7. Upper mold; 8. Air hole; 9. Sealing ring; 10. Device base; 11. Lower mold; 12. Positioning column; 13. Positioning hole; 14. Lower limit frame; 15. Dustproof frame; 16. Upper limit frame; 17. Motor; 18. Threaded rod; 19. Moving block. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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.
[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a mold air inlet cleaning device, including a device support 1 and an upper mold and air inlet cleaning mechanism. The upper mold and air inlet cleaning mechanism includes a top plate 2, a filter box 3, a fan 4, an air inlet pipe 5, an electric push rod 6, an upper mold 7, an air inlet 8, and a sealing ring 9. The top plate 2 is fixedly connected to the surface of the device support 1, the filter box 3 is fixedly connected to the top of the top plate 2, the fan 4 is fixedly connected to the top of the top plate 2 and is fixedly connected to the filter box 3, the air inlet pipe 5 is fixedly connected to the surface of the filter box 3 and extends to the bottom of the top plate 2, there are two electric push rods 6 and both are fixedly connected to the bottom of the top plate 2, the upper mold 7 is fixedly connected to the bottom of the electric push rod 6 and is slidably connected to the device support 1, the air inlet 8 is fixedly connected to the top of the upper mold 7, and the sealing ring 9 is fixedly sleeved on the outer surface of the air inlet 8. The outer wall of the air inlet 8 is adapted to the inner wall size of the air inlet pipe 5.
[0025] Furthermore, a device base 10 is fixedly connected to the bottom of the device bracket 1, a lower mold 11 is fixedly connected to the top of the device base 10, a lower limit frame 14 is fixedly connected to the surface of the lower mold 11, a dustproof frame 15 is slidably connected to the surface of the lower mold 11, a motor 17 is fixedly connected to the top of the device bracket 1, a threaded rod 18 is fixedly connected to the output end of the motor 17, a moving block 19 is threadedly sleeved on the outer surface of the threaded rod 18, the moving block 19 is fixedly connected to the surface of the dustproof frame 15, an upper limit frame 16 is fixedly connected to the surface of the upper mold 7, the upper limit frame 16 is located directly above the dustproof frame 15, a plurality of positioning posts 12 are fixedly connected to the bottom of the upper mold 7, and a plurality of positioning holes 13 adapted to the positioning posts 12 are opened on the top of the lower mold 11.
[0026] Furthermore, during mold operation, the electric push rod 6 is activated to move the upper mold 7 downwards, causing the upper mold 7 and lower mold 11 to fit together. The positioning pins 12 and positioning holes 13 ensure a more stable fit. The air holes 8 ensure smooth filling of the mold cavity, avoiding problems such as air bubbles and depressions. After the operation is completed, the upper mold 7 is moved upwards. When it reaches the top, the air holes 8 enter the interior of the air inlet pipe 5 and the sealing ring 9 enhances the sealing. When cleaning the interior of the air holes 8, the motor 17 is activated to rotate the threaded rod 18, causing the moving block 19 to move upwards and drive the dustproof frame 15 upwards until the dustproof frame 15 contacts the upper limit frame 16. The fan 4 and the air inlet pipe 5 suck away the dust and impurities inside the air holes 8, which are then filtered and collected by the filter box 3. The dustproof frame 15 can block external dust and impurities during cleaning, preventing dust from remaining inside the air holes 8 and the upper mold 7.
[0027] Furthermore, the upper mold is raised and lowered by an electric push rod to open and close the mold. The positioning pins and positioning holes cooperate to ensure the mold closing accuracy. The air holes ensure the filling quality of the cavity. During cleaning, the fan draws impurities from the air holes through the air inlet pipe and collects them by the filter box. The dustproof frame is driven by the motor to form a closed space to prevent secondary pollution. The overall structure realizes automatic cleaning of impurities in the air holes, keeps the air holes unobstructed, improves the working efficiency of the mold and the quality of the product. It solves the problem that when using high-pressure airflow to blow away dust and impurities inside the air holes, the impurities are easily driven by the airflow and fall downwards to the lower mold area, causing secondary pollution and affecting the performance of the mold and production efficiency.
[0028] Structural Description: Device Support 1: Serves as the basic support frame for the entire cleaning device, providing a stable installation platform and motion guidance structure for other functional components, and ensuring the overall rigidity of the coordinated operation of each mechanism;
[0029] Top plate 2: It plays a key role in connecting the filtration system and the lifting mechanism. It separates the power components of the cleaning device from the main body of the mold through a planar installation method, realizing the integrated layout of functional modules.
[0030] Filter box 3: As the core purification unit of the air circuit system, it adopts the multi-stage filtration principle to separate and process the inhaled pollutants, keeping the air circuit unobstructed while realizing the centralized collection of impurities.
[0031] Fan 4: It generates a stable negative pressure airflow through impeller rotation, providing continuous gas delivery power for the entire cleaning system and ensuring that impurities inside the air pores can be effectively sucked and transferred.
[0032] Inlet pipe 5: As an airflow channel connecting the mold and the purification system, it adopts a flexible connection design to balance sealing and freedom of movement, so as to achieve stable airflow transmission under dynamic working conditions;
[0033] Electric push rod 6: There are two electric push rods 6. As precision linear drive components, they precisely adjust the lifting stroke and pressing force of the upper mold through electrical control signals to ensure the smoothness and repeatability of the mold opening and closing process.
[0034] Upper mold 7: As the core component of the molding process, it achieves precise replication of the product shape through cavity structure design, and integrates multiple functional interfaces to meet the needs of composite processes;
[0035] Vent 8: As a key channel for gas exchange inside the mold, it adopts a special cross-sectional shape design to balance venting efficiency and structural strength, and maintains cavity pressure balance during the molding process;
[0036] Sealing ring 9: Made of elastic material, it forms a reliable airtight barrier on the dynamic mating surface to prevent external media from seeping in and affecting the cleaning effect;
[0037] Device base 10: The design of a large contact surface enhances the overall stability of the equipment, providing a precise installation benchmark and vibration buffer support for the lower mold assembly;
[0038] Lower mold 11: Together with the upper mold, it forms a complete molding space. By optimizing the heat conduction path, it ensures a uniform temperature distribution, thereby improving the product molding quality and dimensional stability.
[0039] Positioning pins 12: There are multiple positioning pins 12, which are guide elements made of high-hardness material. They achieve automatic centering during mold closing through tapered surface mating, eliminating cavity misalignment caused by positional deviation.
[0040] Positioning Hole 13: There are multiple positioning holes 13, which serve as the reference holes for the positioning system. They are precision machined to ensure a gapless fit with the guide post and provide a geometric reference for repeated positioning.
[0041] Lower limit frame 14: Serves as the installation reference surface of the dustproof system. The initial position of the dustproof component is defined by the annular boss structure to ensure the centering of the moving parts.
[0042] Dustproof frame 15: It adopts a liftable cover structure to form a closed space during the cleaning process, effectively isolating external environmental pollutants from secondary pollution of key components;
[0043] Upper limit frame 16: As the upper limit stop structure of the dustproof system, it precisely controls the end point of the protective cover's stroke through end face contact, ensuring the complete closure of the sealing interface;
[0044] Motor 17: As a rotational power source, it outputs controllable torque through a reduction mechanism to achieve smooth adjustment of the lifting speed and position holding function of the dustproof system;
[0045] Threaded rod 18: A transmission component that converts the rotational motion of the motor into linear displacement, and achieves stepless adjustment and self-locking of the dust cover position through a precision threaded pair;
[0046] Moving block 19: As the power conversion node of the linear motion mechanism, it converts the axial thrust of the threaded pair into the lifting power of the dust cover, and also undertakes the guiding function.
[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A mold air inlet hole cleaning device characterized by, include: Device support (1); The upper mold and air hole cleaning mechanism includes a top plate (2), a filter box (3), a fan (4), an air inlet pipe (5), an electric push rod (6), an upper mold (7), air holes (8), and a sealing ring (9). The top plate (2) is fixedly connected to the surface of the device support (1), the filter box (3) is fixedly connected to the top of the top plate (2), the fan (4) is fixedly connected to the top of the top plate (2), the fan (4) is fixedly connected to the filter box (3), and the air inlet pipe (5) is fixedly connected to the top of the filter box (3). On the surface of the filter box (3), the air inlet pipe (5) extends to the bottom of the top plate (2). There are two electric push rods (6), both of which are fixedly connected to the bottom of the top plate (2). The upper mold (7) is fixedly connected to the bottom of the electric push rod (6). The upper mold (7) is slidably connected to the device bracket (1). The air hole (8) is fixedly connected to the top of the upper mold (7). The sealing ring (9) is fixedly sleeved on the outer surface of the air hole (8). The outer wall of the air hole (8) is adapted to the inner wall size of the air inlet pipe (5).
2. A mold gas inlet hole cleaning device according to claim 1, characterized in that: The bottom of the device support (1) is fixedly connected to the device base (10), and the top of the device base (10) is fixedly connected to the lower mold (11).
3. A mold gas inlet hole cleaning device according to claim 2, characterized in that: The lower mold (11) is fixedly connected to a lower limit frame (14), and the lower mold (11) is slidably connected to a dustproof frame (15).
4. A mold gas inlet hole cleaning device according to claim 1, characterized in that: A motor (17) is fixedly connected to the top of the device bracket (1), and a threaded rod (18) is fixedly connected to the output end of the motor (17).
5. A mold gas port cleaning device as defined in claim 4, wherein: The outer surface of the threaded rod (18) is threaded with a movable block (19), which is fixedly connected to the surface of the dustproof frame (15).
6. The mold air inlet cleaning device according to claim 1, characterized in that: The upper mold (7) is fixedly connected to an upper limit frame (16), which is located directly above the dustproof frame (15).
7. A mold gas inlet hole cleaning device according to claim 1, wherein: The bottom of the upper mold (7) is fixedly connected with multiple positioning posts (12), and the top of the lower mold (11) is provided with multiple positioning holes (13) that are adapted to the positioning posts (12).