A self-cleaning phosphating tank

Abstract

This utility model discloses a self-cleaning phosphating tank, relating to the field of metal material phosphating protection technology. The tank bottom is designed with an inclined wall, making it easier to remove phosphating slag adhering to the inclined wall. When cleaning is required, a drive device can simultaneously drive the rotation of a bidirectional lead screw and a spiral feeding mechanism. The bidirectional lead screw allows for reciprocating scraping of the inclined wall by a scraper without changing the direction of rotation. Combined with the operation of the spiral feeding mechanism, this achieves the scraping and discharge of the phosphating slag. The scraper is shaped like an inverted isosceles trapezoid from top to bottom, allowing it to guide the phosphating slag downwards on both the outward and return strokes through the inclined scraping surfaces on both sides. This makes it easier for the scraped phosphating slag to concentrate at the spiral feeding mechanism at the bottom of the tank, improving cleaning efficiency and preventing the phosphating slag from diffusing into shallow layers and affecting the phosphating quality.

Description

Technical Field

[0001] This utility model relates to the field of phosphating protection technology for metal materials, and in particular to a self-cleaning phosphating tank. Background Technology

[0002] Phosphating is a process involving chemical and electrochemical reactions to form a phosphate conversion film, known as a phosphate coating, which provides protection for metallic materials. Commonly used phosphating equipment includes phosphating tanks where metal materials or workpieces are immersed in a phosphating solution. During operation, phosphate slag accumulates in the tank and adheres to the bottom, requiring periodic drainage and replacement of the phosphating solution for cleaning and maintenance. Existing technologies also include scraping the phosphate slag from the bottom of the tank during operation. However, efficient slag removal is still necessary after scraping; furthermore, a large amount of scraped phosphate slag can drift into the phosphating solution, affecting the phosphating effect.

[0003] Therefore, those skilled in the art are dedicated to developing a self-cleaning phosphating tank that can be cleaned efficiently without affecting the phosphating effect. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to provide a self-cleaning phosphating tank that can be cleaned efficiently without affecting the phosphating effect.

[0005] To achieve the above objectives, this utility model provides a self-cleaning phosphating tank, comprising a tank body 1, a scraper mechanism 2, a spiral pusher mechanism 3, and a drive mechanism. The tank body 1 includes, from top to bottom, a side wall 11, an inclined wall 12, and a pusher pipe 13 connected sequentially. Both ends of the tank body 1 are end walls 14. A slag discharge port 15 is provided at the lower part of one end of the pusher pipe 13. The scraper mechanism 2 consists of two components corresponding to the inclined wall 12, each including a scraper 21 and a bidirectional lead screw 23 rotatably connected between the two end walls 14. The scraper 21 is driven by the bidirectional lead screw 23 to reciprocate along the length of the tank body 1 to scrape the surface of the inclined wall 12. The scraper 21 is shaped as an inverted isosceles trapezoid from top to bottom. The spiral pusher mechanism 3 is disposed within the pusher pipe 13 to push the phosphating slag towards the slag discharge port 15. The drive mechanism drives the rotational movement of the bidirectional lead screw 23 and the spiral pusher mechanism 3.

[0006] Furthermore, a connecting seat 22 is provided on the scraper 21, and the bidirectional lead screw 23 is threadedly connected to the connecting seat 22. One end of the bidirectional lead screw 23 extends out of the end wall 14 to be connected to the drive mechanism for transmission.

[0007] Furthermore, a connecting seat 22 is also provided on the scraper 21, and a guide rod 24 is fixedly connected between the end walls 14. The additional connecting seat 22 is slidably sleeved on the guide rod 24. The aforementioned guide rod 24 enables the scraper to move more stably.

[0008] Furthermore, the spiral feeding mechanism 3 includes a rotating shaft 31 and a spiral blade 32, with one end of the rotating shaft 31 extending out of the end wall 14 for transmission connection with the driving mechanism.

[0009] Furthermore, the drive mechanism includes a motor disposed outside the end wall 14, and the output shaft of the motor is connected to the bidirectional lead screw 23 and the rotating shaft 31.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention features an inclined wall at the bottom of the tank, making it easier to remove the phosphating slag adhering to the inclined wall. When cleaning is required, a drive device can simultaneously drive the rotation of a bidirectional lead screw and a spiral feeding mechanism. The bidirectional lead screw allows for reciprocating scraping of the inclined wall by the scraper without changing the direction of rotation. Combined with the operation of the spiral feeding mechanism, this achieves the scraping and discharge of the phosphating slag. The scraper is shaped like an inverted isosceles trapezoid from top to bottom, allowing it to guide the phosphating slag downwards on both the outward and return strokes through the inclined scraping surfaces on both sides. This makes it easier for the scraped phosphating slag to concentrate at the spiral feeding mechanism at the bottom of the tank, improving cleaning efficiency and preventing the phosphating slag from spreading to shallower layers and affecting the phosphating quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the phosphating tank of this utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the phosphating tank;

[0014] Figure 3 yes Figure 2 A schematic diagram of the structure along direction A.

[0015] Figure label:

[0016] 1. Tank body; 11. Side wall; 12. Inclined wall; 13. Pusher pipe; 14. End wall; 15. Slag discharge port;

[0017] 2. Scraper mechanism; 21. Scraper; 22. Connecting seat; 23. Double-acting lead screw; 24. Guide rod;

[0018] 3. Spiral feeding mechanism; 31. Rotating shaft; 32. Spiral blade. Detailed Implementation

[0019] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0020] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0021] like Figure 1-3 As shown, the self-cleaning phosphating tank of this utility model includes a tank body 1, a scraper mechanism 2, a spiral pushing mechanism 3, and a driving mechanism. The tank body 1 includes a side wall 11, an inclined wall 12, and a pushing pipe 13 connected sequentially from top to bottom along its length. The two ends of the tank body 1 are end walls 14. A slag discharge port 15 is provided at the lower part of one end of the pushing pipe 13. The scraper mechanism 2 consists of two scrapers corresponding to the inclined wall 12, including a scraper 21 and a bidirectional screw 23 rotatably connected between the two end walls 14. The scraper 21 is driven by the bidirectional screw 23 to reciprocate along the length of the tank body 1 to scrape the surface of the inclined wall 12. The shape of the scraper 21 is an inverted isosceles trapezoid from top to bottom. The spiral pushing mechanism 3 is disposed inside the pushing pipe 13 to push the phosphating slag toward the slag discharge port 15. The driving mechanism is used to drive the rotational movement of the bidirectional screw 23 and the spiral pushing mechanism 3.

[0022] During operation, phosphating slag is generated and deposited at the bottom of the tank when the phosphating solution is used for the phosphating process of the workpiece. This invention sets the bottom of the tank as an inclined wall, making it easier to remove the phosphating slag adhering to the inclined wall. When cleaning is required, the drive device can simultaneously drive the rotation of the bidirectional lead screw and the spiral pusher mechanism. The bidirectional lead screw can achieve the reciprocating scraping of the inclined wall by the scraper without changing the direction of rotation. Combined with the operation of the spiral pusher mechanism, the phosphating slag is scraped and discharged. The shape of the scraper is an inverted isosceles trapezoid from top to bottom, which allows it to guide the phosphating slag downward through the inclined scraping surfaces on both sides during the outward and return strokes. This makes it easier for the scraped phosphating slag to be concentrated by the spiral pusher mechanism at the bottom of the tank, improving cleaning efficiency and preventing the phosphating slag from spreading to the shallow layer and affecting the phosphating quality.

[0023] Furthermore, a connecting seat 22 is provided on the scraper 21, and the bidirectional lead screw 23 is threadedly connected to the connecting seat 22. One end of the bidirectional lead screw 23 extends out of the end wall 14 to be connected to the drive mechanism for transmission.

[0024] Furthermore, a connecting seat 22 is also provided on the scraper 21, and a guide rod 24 is fixedly connected between the end walls 14. The additional connecting seat 22 is slidably sleeved on the guide rod 24. The aforementioned guide rod 24 enables the scraper to move more stably.

[0025] Furthermore, the spiral feeding mechanism 3 includes a rotating shaft 31 and a spiral blade 32, with one end of the rotating shaft 31 extending out of the end wall 14 for transmission connection with the driving mechanism.

[0026] Furthermore, the drive mechanism includes a motor disposed outside the end wall 14, and the output shaft of the motor is connected to the bidirectional lead screw 23 and the rotating shaft 31.

[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A self-cleaning phosphating tank, characterized in that, The system includes a tank (1), a scraper mechanism (2), a spiral feeding mechanism (3), and a drive mechanism. The tank (1) includes a side wall (11), an inclined wall (12), and a feeding pipe (13) connected sequentially from top to bottom along its length. The two ends of the tank (1) are end walls (14), and a slag discharge port (15) is provided at the lower part of one end of the feeding pipe (13). The scraper mechanism (2) consists of two components corresponding to the inclined wall (12), including a scraper (21) and a screw rotatably connected to the two end walls (14). The bidirectional lead screw (23) between the two sides, the scraper (21) is driven by the bidirectional lead screw (23) to reciprocate along the length direction of the tank (1) to scrape the surface of the inclined wall (12), the shape of the scraper (21) is an inverted isosceles trapezoid from top to bottom; the spiral pusher mechanism (3) is set in the pusher tube (13) to push the phosphate slag towards the slag discharge port (15); the drive mechanism is used to drive the rotational movement of the bidirectional lead screw (23) and the spiral pusher mechanism (3).

2. The self-cleaning phosphating tank as described in claim 1, characterized in that, A connecting seat (22) is provided on the scraper (21), and the bidirectional lead screw (23) is threaded into the connecting seat (22). One end of the bidirectional lead screw (23) extends out of the end wall (14) to be connected to the drive mechanism for transmission.

3. The self-cleaning phosphating tank as described in claim 2, characterized in that, A connecting seat (22) is also provided on the scraper (21), and a guide rod (24) is fixedly connected between the end walls (14). The additional connecting seat (22) is slidably sleeved on the guide rod (24).

4. The self-cleaning phosphating tank as described in claim 1, characterized in that, The spiral feeding mechanism (3) includes a rotating shaft (31) and spiral blades (32), with one end of the rotating shaft (31) extending out of the end wall (14) to be connected to the driving mechanism for transmission.

5. The self-cleaning phosphating tank as described in claim 4, characterized in that, The drive mechanism includes a motor disposed outside the end wall (14), and the output shaft of the motor is connected to the bidirectional lead screw (23) and the rotating shaft (31) for transmission.

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