A coating processing filter device
By combining the servo motor-driven rotating shaft with the feeding auger, the problems of paint accumulation and adhesion to the feed shell in the paint processing filtration device are solved, achieving more efficient filtration and automated feeding, and improving the filtration effect and applicability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN GOLD-MINE ADVANCED MATERIAL TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-19
AI Technical Summary
Existing paint processing filtration devices are prone to paint aggregation during feeding, affecting the filtration effect. Furthermore, the material adhering to the surface of the feed shell requires manual cleaning, reducing the applicability of the device.
The system uses a servo motor to drive the rotating shaft and feeding auger, along with an arc-shaped scraper, to achieve uniform dispersion and conveying of materials. The materials are filtered through a screen, and the vertical reciprocating motion of the screen is supported by a support ring and rubber contact blocks to prevent material accumulation.
It improves the filtration effect of the coating, reduces material accumulation and clogging, simplifies the feeding process, and enhances the automation level of the equipment.
Smart Images

Figure CN224370877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating processing technology, specifically a coating processing filtration device. Background Technology
[0002] Paint, also known as varnish, refers to a continuous film that is applied to the surface of an object to be protected or decorated, and can form a firm and continuous film with the object. It is usually a viscous liquid made of resin, oil or emulsion as the main component, with or without pigments and fillers, and with appropriate additives, and is formulated with organic solvents or water. Paint has strong hiding power, film adhesion, viscosity, fineness, freeze-thaw resistance, scrub resistance, aging resistance and alkali resistance.
[0003] Most existing small paint processing plants use liquid vibration devices to filter paint, thereby reducing foreign matter inside the paint and making the paint purer. However, when using existing devices, all the paint that needs to be filtered is added at once, and the device itself vibrates and screens it. This causes the paint to clump together, which affects the filtration effect and reduces the filtration efficiency of the device.
[0004] Patent CN222816429U discloses a paint processing filtration device, including a support frame and a screening mechanism installed on one side of the support frame, and a filter screen installed inside the screening mechanism. A support rod is bolted to the top of the support frame, and an inlet shell is fixedly connected to the top of the support rod. A bearing is installed at the bottom of the inlet shell, and an outlet pipe is provided at the bottom of the bearing. This invention, through the cooperation of the rotating mechanism and the outlet pipe, can disperse the paint to be filtered onto the surface of the filter screen, avoiding paint aggregation and improving the filtration effect of the device. Simultaneously, the cooperation of the rotating mechanism and the extrusion mechanism allows a scraper to clean the filter screen, thereby reducing the possibility of the filter screen being clogged by foreign objects. This effectively improves the filtration effect of the device on paint and solves the problems of poor filtration effect and low applicability of existing devices.
[0005] However, the feed tank in this device does not have a feeding mechanism, which makes it easy for materials to adhere to the surface of the feed tank and prevent normal feeding. Manual cleaning of the surface of the feed tank or assisted feeding is required. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides a coating processing filtration device to solve the aforementioned technical problems.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a coating processing filtration device, comprising a main body, a cavity inside the main body, a feed hopper detachably connected to the top of the cavity, a connecting rod on the feed hopper, a mounting frame on the top of the connecting rod, a servo motor mounted on the mounting frame, a mounting rod mounted on the output shaft of the servo motor, arc-shaped scrapers extending downward from both ends of the mounting rod, the arc-shaped scrapers being in close contact with the surface of the feed hopper, a downwardly extending rotating shaft mounted on the output shaft of the servo motor, a feeding auger mounted on the rotating shaft, a hollow discharge pipe protruding downward from the bottom of the feed hopper, a screen slidably connected inside the cavity, and a discharge port communicating with the cavity at the bottom of the main body.
[0010] Preferably, a support ring is provided on the inner wall of the cavity, and multiple slide rods are slidably connected to the support ring. A rubber contact block is provided on the top of the slide rod, and the top of the rubber contact block abuts against the bottom of the screen.
[0011] Preferably, a return spring is fitted on each of the plurality of slide rods, with one end of the return spring abutting against the rubber contact block and the other end of the return spring abutting against the support ring.
[0012] Preferably, the top edge of the screen is provided with a wavy protrusion, and the bottom of the rotating shaft is provided with multiple connecting shafts. The ends of the connecting shafts are rotatably mounted with pulleys, and the multiple pulleys abut against the wavy protrusions.
[0013] Preferably, the feeding auger is disposed inside the discharge pipe.
[0014] Preferably, the feed hopper is funnel-shaped, with two lifting rings at the top, and the feed hopper is fixed to the main body of the device by bolts.
[0015] Preferably, the side of the main body of the device is provided with an observation window that allows observation into the cavity, and the observation window is made of transparent acrylic material.
[0016] Compared with the prior art, the present invention provides a coating processing filtration device with the following beneficial effects: The present invention, by setting a servo motor, a rotating shaft, a feeding auger and an arc-shaped scraper, can cause the feeding auger to rotate while the rotating shaft is driven by the servo motor during feeding, and drive the arc-shaped scraper to rotate closely against the surface of the feeding hopper. Then, the material attached to the surface of the feeding hopper can be scraped and sent to the discharge port by the arc-shaped scraper, and the material can be transported into the cavity by the feeding auger and fall onto the screen for filtration. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of the device of this utility model;
[0018] Figure 2This is a cross-sectional structural diagram of the feed hopper, screen, and rotating shaft of this utility model;
[0019] Figure 3 This is a cross-sectional structural diagram of the connecting shaft and screen of this utility model.
[0020] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0021] The components include: 1. Main body of the device; 2. Support base; 3. Support crossbar; 4. Feed hopper; 5. Lifting ring; 6. Connecting rod; 7. Mounting frame; 8. Servo motor; 9. Mounting rod; 10. Feeding auger; 11. Arc-shaped scraper; 12. Discharge port; 13. Observation window; 14. Discharge pipe; 15. Pulley; 16. Connecting shaft; 17. Rotating shaft; 18. Discharge port; 19. Screen; 20. Support ring; 21. Rubber contact block; 22. Sliding rod; 23. Return spring. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Please see Figure 1-4A coating processing filtration device includes a main body with a cavity inside. A feed hopper is detachably connected to the top of the cavity. A connecting rod is mounted on the feed hopper, and a mounting frame is mounted on the top of the connecting rod. A servo motor is mounted on the mounting frame, and a mounting rod is mounted on the output shaft of the servo motor. Arc-shaped scrapers extend downward from both ends of the mounting rod and are in close contact with the surface of the feed hopper. A downward-extending rotating shaft is mounted on the output shaft of the servo motor, and a feeding auger is mounted on the rotating shaft. A hollow discharge pipe protrudes downward from the bottom of the feed hopper. A screen is slidably connected inside the cavity, and a discharge port communicating with the cavity is located at the bottom of the main body.
[0026] With the addition of a servo motor, rotating shaft, feeding auger, and arc-shaped scraper, the servo motor drives the rotating shaft to rotate during feeding, which in turn drives the feeding auger to rotate, causing the arc-shaped scraper to rotate close to the surface of the feeding hopper. The arc-shaped scraper then scrapes the material adhering to the surface of the feeding hopper to the discharge port, and the feeding auger transports the material into the cavity and drops it onto the screen for filtration.
[0027] Specifically, in this embodiment, a support ring is provided on the inner wall of the cavity, and multiple slide rods are slidably connected to the support ring. A rubber contact block is provided on the top of the slide rod, and the top of the rubber contact block abuts against the bottom of the screen. A return spring is sleeved on each of the slide rods. One end of the return spring abuts against the rubber contact block, and the other end of the return spring abuts against the support ring. A wavy protrusion is provided at the top edge of the screen. Multiple connecting shafts are provided at the bottom of the rotating shaft, and pulleys are rotatably installed at the ends of the connecting shafts. The multiple pulleys abut against the wavy protrusions.
[0028] The support ring, sliding rod, and rubber contact block provide support for the screen under normal conditions. When feeding material and the servo motor drives the rotating shaft, the rotating shaft drives the connecting shaft at the bottom to rotate, causing the pulley at the end of the connecting shaft to move along the wave-shaped protrusions. When the pulley moves to the protrusion, it presses the screen downward. When the pulley moves to the concave area between the two protrusions, the screen automatically resets due to the elastic potential energy of the return spring, thereby driving the screen to move vertically back and forth. This shakes the material on top of the screen, preventing material accumulation.
[0029] Specifically, in this embodiment, the feeding auger is installed inside the discharge pipe.
[0030] Specifically, in this embodiment, the feed hopper is funnel-shaped, and two lifting rings are provided on the top of the feed hopper. The feed hopper is fixed to the main body of the device by bolts. The lifting rings facilitate the lifting and transportation of the feed hopper.
[0031] Specifically, in this embodiment, the side of the main body of the device is provided with an observation window that allows observation of the cavity. The observation window is made of transparent acrylic material, which facilitates observation of the working status inside the main body of the device.
[0032] It should be noted that the servo motor and the electrical components mentioned in this article are all connected to the external main controller and mains power. Furthermore, the more detailed working process of the screen for material screening is described in the prior application for a coating processing filtration device with application number 202421646104.5, and will not be repeated here.
[0033] 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. A coating processing filtration device, comprising a main body, characterized in that: The main body of the device has a cavity. A feed hopper is detachably connected to the top of the cavity. A connecting rod is installed on the feed hopper, and a mounting bracket is installed on the top of the connecting rod. A servo motor is installed on the mounting bracket, and a mounting rod is installed on the output shaft of the servo motor. Arc-shaped scrapers extend downward from both ends of the mounting rod and are in close contact with the surface of the feed hopper. A downward-extending rotating shaft is installed on the output shaft of the servo motor, and a feeding auger is installed on the rotating shaft. A hollow discharge pipe protrudes downward from the bottom of the feed hopper. A screen is slidably connected inside the cavity. An outlet communicating with the cavity is provided at the bottom of the main body of the device.
2. The coating processing filtration device according to claim 1, characterized in that: A support ring is provided on the inner wall of the cavity, and multiple slide rods are slidably connected to the support ring. A rubber contact block is provided on the top of the slide rod, and the top of the rubber contact block abuts against the bottom of the screen.
3. The coating processing filtration device according to claim 2, characterized in that: Each of the slide rods is fitted with a return spring, one end of which abuts against the rubber contact block, and the other end of which abuts against the support ring.
4. The coating processing filtration device according to claim 1, characterized in that: The top edge of the screen is provided with a wavy protrusion, and the bottom of the rotating shaft is provided with multiple connecting shafts. The ends of the connecting shafts are rotatably mounted with pulleys, and the multiple pulleys abut against the wavy protrusions.
5. A coating processing filtration device according to claim 1, characterized in that: The feeding auger is installed inside the discharge pipe.
6. The coating processing filtration device according to claim 1, characterized in that: The feed hopper is funnel-shaped, with two lifting rings at the top. The feed hopper is fixed to the main body of the device by bolts.
7. The coating processing filtration device according to claim 1, characterized in that: The main body of the device is provided with an observation window on the side, which is made of transparent acrylic material and allows observation into the cavity.