A pickling device for self-tapping drywall nails

Abstract

The utility model discloses a kind of pickling devices for self-tapping dry wall nail phosphating treatment, belong to self-tapping dry wall nail processing field, including base, box and pickling bin, the box is fixedly connected on the upper surface of base, the pickling bin is opened in box interior, the box interior is provided with rotating assembly, the rotating assembly is used to drive self-tapping dry wall nail rotation, the pickling bin interior is fixedly connected with shower head, the shape of the shower head is L type, the position of the shower head corresponds with the position of rotating assembly, the shower head is used to spray pickling to self-tapping dry wall nail, the box interior is opened with liquid collecting groove;By setting rotating assembly, utilize positive and negative motor to drive the self-tapping dry wall nail rotation in storage frame, and cooperate with the L type shower head corresponding therewith, can make acid liquor fully cover on the surface of self-tapping dry wall nail from side and top, to improve the pickling effect on the surface of self-tapping dry wall nail.

Description

Technical Field

[0001] This utility model belongs to the field of self-tapping dry wall screw processing technology, specifically relating to an acid pickling device for phosphating treatment of self-tapping dry wall screws. Background Technology

[0002] In the fields of architectural hardware and furniture manufacturing, self-tapping drywall screws are the core fasteners for connecting building materials such as gypsum board and lightweight partition boards. Their surface corrosion resistance and structural stability directly determine the reliability and service life of the building material connection. In order to improve the corrosion resistance of self-tapping drywall screws, the industry generally adopts the surface treatment process of "pickling-phosphating". Among them, the pickling process is a key preliminary step, which needs to thoroughly remove the rolling oxide scale, stamping oil stains and rust impurities generated during storage from the surface of the screw body, laying the foundation for the uniform film formation and tight adhesion of the subsequent phosphating film.

[0003] According to the patent announcement number CN219808011U, a screw pickling device for production is known prior art. Although the patent has the advantage of uniform cooling of castings, the technical solution of the patent has the following defects in actual use: During the spraying process, since the positions of the spray head and the screw are fixed, it is difficult to ensure that the screw is completely sprayed with acid, resulting in poor pickling effect of the screw. At the same time, when the acid is recycled, it is difficult to clean the debris in time by simply filtering the acid through the filter screen, which can easily cause the filter screen to become clogged, thus affecting the recycling of acid. Utility Model Content

[0004] The purpose of this invention is to provide an acid pickling device for phosphating self-tapping dry wall nails, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pickling device for phosphating self-tapping drywall screws, comprising a base, a housing, and a pickling chamber. The housing is fixedly connected to the upper surface of the base, and the pickling chamber is located inside the housing. A rotating assembly is installed inside the housing to drive the self-tapping drywall screws to rotate. A spray head is fixedly connected inside the pickling chamber. The spray head is L-shaped and its position corresponds to the position of the rotating assembly. The spray head is used to spray and pickle the self-tapping drywall screws. A liquid collection tank is provided inside the housing, and a first filter plate is embedded on the surface of the liquid collection tank. The first filter plate is semi-circular in shape, and a through hole is provided on the surface of the liquid collection tank.

[0006] In a preferred embodiment, the rotating assembly includes a motorized compartment located inside a housing. A forward and reverse motor is fixedly connected inside the motorized compartment. The output shaft of the forward and reverse motor is connected to the surface of the motorized compartment via a bearing drive. A turntable is fixedly connected to the upper end of the output shaft of the forward and reverse motor. A limit frame is fixedly connected to the upper surface of the turntable. A storage frame is provided inside the limit frame. The surface of the storage frame has honeycomb-shaped through holes. The storage frame is used to store self-tapping drywall screws. A handle is fixedly connected to the side of the storage frame. There are two sets of handles, symmetrically arranged on both sides of the storage frame. The position of the storage frame corresponds to the position of the spray head.

[0007] In a preferred embodiment, the housing is provided with slide rails. There are two sets of slide rails, with the other set located on the lower surface of the turntable. The slide rails are provided with ball bearings, and there are multiple ball bearings symmetrically arranged inside the slide rails.

[0008] In a preferred embodiment, a scraper is fixedly connected to the side of the turntable, the cross-section of which matches the cross-section of the liquid collection tank. A limiting block is fixedly connected to the side of the storage frame, and a limiting groove is formed on the upper surface of the limiting frame. The limiting block is engaged in the limiting groove. There are two sets of limiting blocks and two limiting grooves, which are symmetrically arranged on both sides of the storage frame. A liquid storage chamber is provided inside the box, and the liquid storage chamber is connected to the liquid collection tank through a first filter plate. A slag collection chamber is provided inside the box, and the slag collection chamber is connected to the liquid collection tank through a through hole. A second filter plate is embedded on the surface of the slag collection chamber, and the slag collection chamber is connected to the liquid storage chamber through the second filter plate.

[0009] In a preferred embodiment, a liquid supply pump is fixedly connected to the side of the housing, a first liquid guide pipe is fixedly connected to the lower surface of the liquid supply pump, the other end of the first liquid guide pipe passes through the inside of the liquid storage chamber, a second liquid guide pipe is fixedly connected to the upper surface of the liquid supply pump, and the other end of the second liquid guide pipe is fixedly connected to the side of the spray head.

[0010] In a preferred embodiment, a first compartment door is movably connected to the side of the box via a hinge, the position of which corresponds to the position of the pickling compartment, and an observation window is embedded in the surface of the first compartment door. A second compartment door is also connected to the side of the box via a hinged movable plate, the position of which corresponds to the position of the slag collection compartment.

[0011] In a preferred embodiment, an inlet pipe and a drain pipe are installed on the side of the box body. The positions of the inlet pipe and the drain pipe correspond to the positions of the liquid storage tank. Valves are provided on the surface of the inlet pipe and the drain pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This pickling device for phosphating self-tapping dry wall nails uses a rotating assembly to drive the self-tapping dry wall nails in the storage frame to rotate using forward and reverse motors. With the corresponding L-shaped spray head, the acid solution can fully cover the surface of the self-tapping dry wall nails from the side and top, thereby improving the pickling effect of the self-tapping dry wall nail surface. This acid washing device for phosphating self-tapping dry wall nails, by setting up a scraper, a first filter plate, a second filter plate, and through holes, allows the acid solution containing mixed debris to first be filtered through the semi-circular arc-shaped first filter plate on the surface of the collection tank, and scrape off the residual acid solution and debris on the inner wall of the collection tank to prevent impurities from adhering and accumulating and clogging the first filter plate. Then, the debris is guided into the debris collection bin through the through holes, which facilitates the collection and treatment of the debris. At the same time, the acid solution entering the debris collection bin is filtered through the second filter plate, and the filtered acid solution flows back into the storage bin through the second filter plate, thereby ensuring the long-term stable operation of the acid solution circulation system. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a partial sectional view of the side of the structure of this utility model; Figure 4 This is a top view of the rotating component in the structure of this utility model; Figure 5 This is a partial cross-sectional view of the rotating component in the structure of this utility model; Figure 6 This is a front view of the spray head in the structure of this utility model.

[0014] In the diagram: 1. Base; 2. Housing; 3. Pickling chamber; 4. Rotating assembly; 401. Motorized compartment; 402. Forward and reverse motor; 403. Turntable; 404. Limiting frame; 405. Storage frame; 406. Handle; 407. Slide rail; 408. Ball bearing; 409. Scraper; 410. Limiting block; 411. Limiting groove; 5. Spray head; 6. Liquid collection tank; 7. First filter plate; 8. Liquid storage tank; 9. Through hole; 10. Slag collection tank; 11. Second filter plate; 12. Liquid supply pump; 13. First liquid guide pipe; 14. Second liquid guide pipe; 15. First chamber door; 16. Second chamber door; 17. Liquid inlet pipe; 18. Liquid outlet pipe. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0017] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides an acid pickling device for phosphating self-tapping drywall screws, including a base 1, a housing 2, and an acid pickling chamber 3. A collection tank 6 is provided inside the housing 2, which is fixedly connected to the upper surface of the base 1. The acid pickling chamber 3 is located inside the housing 2 and contains a rotating assembly 4 for rotating the self-tapping drywall screws. A spray head 5, L-shaped, is fixedly connected inside the acid pickling chamber 3, and its position corresponds to that of the rotating assembly 4. The rotating assembly 4 includes a motorized chamber 401 inside the housing 2. A forward and reverse motor 402 is fixedly connected inside the motorized chamber 401. The output shaft of the forward and reverse motor 402 is connected to the surface of the motorized chamber 401 via a bearing. A turntable 403 is fixedly connected to the upper end of the output shaft of the forward and reverse motor 402. A limit frame 404 is fixedly connected to the upper surface of the turntable 403, and a storage frame 405 is provided inside the limit frame 404. The surface has honeycomb-shaped through holes 9. The storage frame 405 is used to store self-tapping drywall screws. The storage frame 405 has handles 406 fixedly connected to its side. There are two sets of handles 406, which are symmetrically arranged on both sides of the storage frame 405. The position of the storage frame 405 corresponds to the position of the spray head 5. The box 2 has a slide rail 407 inside. There are two sets of slide rails 407. The other set of slide rails 407 is opened on the lower surface of the turntable 403. The slide rail 407 is equipped with ball bearings 408. There are multiple ball bearings 408, which are symmetrically arranged inside the slide rail 407. A scraper 409 is fixedly connected to the side of the turntable 403. The cross-section of the scraper 409 matches the cross-section of the liquid collection tank 6. A limit block 410 is fixedly connected to the side of the storage frame 405. A limit groove 411 is opened on the upper surface of the limit frame 404. The limit block 410 is snapped into the limit groove 411. There are two sets of limit blocks 410 and limit grooves 411, which are symmetrically arranged on both sides of the storage frame 405. In this embodiment, by setting a rotating component 4, the self-tapping dry wall nails in the storage frame 405 are driven to rotate at a constant speed by the forward and reverse motors 402. With the L-shaped spray head 5 corresponding to the position, the acid solution can be fully covered on the surface of the self-tapping dry wall nails from the side and the top, thereby improving the pickling effect on the surface of the self-tapping dry wall nails. When holding the handles 406 on both sides of the storage frame 405, insert the self-tapping drywall screws to be pickled into the storage frame 405, and align and engage the limiting blocks 410 fixed on the side of the storage frame 405 into the limiting grooves 411. Then, lower the storage frame 405 and place it into the limiting frame 404 on the upper surface of the turntable 403. Through the positioning of the limiting frame 404, the limiting blocks 410 and the limiting grooves 411, the center of the storage frame 405 is aligned with the center of the turntable 403. When the turntable 403 rotates, its lower surface and the slide rail 407 on the inner wall of the housing 2 cooperate with the ball bearings 408 to reduce rotational resistance and ensure the stable operation of the turntable 403.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6 The spray head 5 is used to spray and pickle the self-tapping dry wall screws. The side of the box 2 is fixedly connected to the liquid supply pump 12. The lower surface of the liquid supply pump 12 is fixedly connected to the first liquid guide pipe 13. The other end of the first liquid guide pipe 13 passes through the inside of the liquid storage tank 8. The upper surface of the liquid supply pump 12 is fixedly connected to the second liquid guide pipe 14. The other end of the second liquid guide pipe 14 is fixedly connected to the side of the spray head 5. In this embodiment, when the liquid supply pump 12 on the side of the housing 2 is started, the liquid supply pump 12 draws pickling solution from the storage tank 8 through the first liquid guide pipe 13 and delivers it to the L-shaped spray head 5 in the pickling tank 3 through the second liquid guide pipe 14, so as to facilitate the spraying of the pickling solution.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The surface of the liquid collection tank 6 is inlaid with a first filter plate 7, which is semi-circular in shape. The first filter plate 7 is used to filter the acid solution after spraying. The surface of the liquid collection tank 6 is provided with a through hole 9 for discharging slag. The inside of the box 2 is provided with a liquid storage chamber 8, which is connected to the liquid collection tank 6 through the first filter plate 7. The inside of the box 2 is provided with a slag collection chamber 10, which is connected to the liquid collection tank 6 through the through hole 9. The surface of the slag collection chamber 10 is inlaid with a second filter plate 11, which is connected to the liquid storage chamber 8 through the second filter plate 11.

[0020] In this embodiment, by setting up a scraper 409, a first filter plate 7, a second filter plate 11, and a through hole 9, the acid solution containing mixed slag first passes through the semi-circular arc-shaped first filter plate 7 on the surface of the collection tank 6 to initially filter large particles of slag. Since the scraper 409 on the side of the turntable 403 matches the cross-section of the collection tank 6, it can scrape off the acid solution and slag remaining on the inner wall of the collection tank 6 during rotation, preventing impurities from adhering and accumulating and clogging the first filter plate 7. The slag is then guided into the slag collection chamber 10 through the through hole 9. The acid solution entering the slag collection chamber 10 is then filtered by the second filter plate 11. The filtered acid solution then flows back into the storage tank 8 through the second filter plate 11, ensuring the long-term stable operation of the acid solution circulation system.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The side of the box 2 is connected to a first compartment door 15 via a hinge. The position of the first compartment door 15 corresponds to the position of the pickling compartment 3. An observation window is embedded on the surface of the first compartment door 15. The side of the box 2 is connected to a second compartment door 16 via a hinge. The position of the second compartment door 16 corresponds to the position of the slag collection compartment 10. An inlet pipe 17 and an outlet pipe 18 are installed on the side of the box 2. The positions of the inlet pipe 17 and the outlet pipe 18 correspond to the positions of the storage compartment 8. Valves are provided on the surface of the inlet pipe 17 and the outlet pipe 18.

[0022] In this embodiment, by setting a second compartment door 16, an inlet pipe 17, and a drain pipe 18, the second compartment door 16 corresponding to the slag collection compartment 10 can be opened periodically to clean the accumulated slag in the slag collection compartment 10 and prevent the slag from clogging the second filter plate 11. When the drain pipe 18 valve is opened, the failed acid can be discharged to the designated waste liquid treatment system, and then new acid can be added through the inlet pipe 17 to prepare for the next pickling operation.

[0023] The working principle and usage process of this utility model are as follows: First, the operator opens the valve of the inlet pipe 17 corresponding to the storage tank 8 and injects the prepared pickling solution into the storage tank 8 through the inlet pipe 17. Then, the operator opens the first door 15 corresponding to the pickling tank 3, holds the handles 406 on both sides of the storage frame 405, inserts the self-tapping drywall nails to be pickled into the storage frame 405, and aligns and engages the limiting block 410 fixed on the side of the storage frame 405 into the limiting groove 411. Next, push down the storage frame 405 containing self-tapping drywall screws and place the storage frame 405 into the limiting frame 404 on the upper surface of the turntable 403. Through the positioning of the limiting frame 404, the limiting block 410 and the limiting groove 411, the center of the storage frame 405 is aligned with the center of the turntable 403. Then close the first compartment door 15. Next, the forward and reverse motor 402 in the motor compartment 401 is started. The output shaft of the forward and reverse motor 402 drives the turntable 403 to rotate through the bearing. Simultaneously, the liquid supply pump 12 on the side of the box 2 is started. The liquid supply pump 12 draws pickling solution from the storage tank 8 through the first liquid guide pipe 13 and delivers it to the L-shaped spray head 5 in the pickling tank 3 through the second liquid guide pipe 14. This allows the acid to pass through the honeycomb-shaped through holes 9 of the storage frame 405 and come into contact with the surface of the self-tapping dry wall nail, thus facilitating the pickling of the self-tapping dry wall nail. Meanwhile, the acid solution after pickling, carrying debris, falls into the collection tank 6. It is filtered by the semi-circular first filter plate 7 on the surface of the collection tank 6, and large debris particles are trapped. The acid solution flows into the storage tank 8 through the first filter plate 7. The scraper 409 on the side of the turntable 403 rotates with the turntable 403, scraping the acid solution and impurities remaining on the inner wall of the collection tank 6 to the bottom of the collection tank 6. The trapped debris is pushed by the scraper 409 and gravity, and enters the slag collection tank 10 through the through hole 9 on the surface of the collection tank 6. The small amount of acid solution remaining in the slag collection tank 10 is filtered by the second filter plate 11 on the surface of the slag collection tank 10. Impurities are trapped in the slag collection tank 10. The filtered acid solution flows into the storage tank 8. Finally, after the self-tapping dry wall nails have been pickled, turn off the forward and reverse motors 402 and the liquid supply pump 12, open the first chamber door 15, grasp the handle 406 on the storage frame 405 and lift it upwards, then pour out the self-tapping dry wall nails in the storage frame 405 so that they can be transferred to the phosphating process later. Subsequently, the second compartment door 16 corresponding to the slag collection compartment 10 can be opened periodically to clean the accumulated slag inside the slag collection compartment 10 and prevent the slag from clogging the second filter plate 11. When the drain pipe 18 valve is opened, the expired acid solution can be discharged, and then new acid solution can be added through the inlet pipe 17 to prepare for the next acid washing operation.

[0024] In the above scheme, it should be noted that the distance between the limit frame 404 and the top of the L-shaped spray head 5 is much greater than the height of the storage box 405, which makes it convenient for staff to place or retrieve the storage box 405.

[0025] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pickling device for phosphating self-tapping drywall screws, comprising a base (1), a housing (2), and a pickling chamber (3), characterized in that: The box (2) is fixedly connected to the upper surface of the base (1). The pickling chamber (3) is opened inside the box (2). A rotating component (4) is provided inside the box (2). The rotating component (4) is used to drive the self-tapping dry wall screws to rotate. A spray head (5) is fixedly connected inside the pickling chamber (3). The spray head (5) is L-shaped. The spray head (5) is used to spray and pickle the self-tapping dry wall screws. A liquid collection tank (6) is opened inside the box (2). A first filter plate (7) is embedded on the surface of the liquid collection tank (6). The first filter plate (7) is semi-circular in shape. A through hole (9) is opened on the surface of the liquid collection tank (6).

2. The pickling apparatus for phosphating self-tapping drywall screws according to claim 1, characterized in that: The rotating assembly (4) includes a motor compartment (401), which is located inside the housing (2). A forward and reverse motor (402) is fixedly connected inside the motor compartment (401). The output shaft of the forward and reverse motor (402) is connected to the surface of the motor compartment (401) via a bearing drive. A turntable (403) is fixedly connected to the upper end of the output shaft of the forward and reverse motor (402). A limit frame (404) is fixedly connected to the upper surface of the turntable (403). A storage frame (405) is provided inside the limit frame (404). A honeycomb-shaped through hole (9) is provided on the surface of the storage frame (405). The storage frame (405) is used to store self-tapping drywall screws. A handle (406) is fixedly connected to the side of the storage frame (405). There are two sets of handles (406), which are symmetrically arranged on both sides of the storage frame (405). The position of the storage frame (405) corresponds to the position of the spray head (5).

3. The pickling apparatus for phosphating self-tapping drywall screws according to claim 2, characterized in that: The box (2) has a slide rail (407) inside. There are two sets of slide rails (407). The other set of slide rails (407) is located on the lower surface of the turntable (403). There are multiple balls (408) inside the slide rails (407) and they are symmetrically arranged inside the slide rails (407).

4. The pickling apparatus for phosphating self-tapping drywall screws according to claim 2, characterized in that: A scraper (409) is fixedly connected to the side of the turntable (403). The cross-section of the scraper (409) matches the cross-section of the liquid collection tank (6). A limiting block (410) is fixedly connected to the side of the storage frame (405). A limiting groove (411) is opened on the upper surface of the limiting frame (404). The limiting block (410) is snapped into the limiting groove (411). There are two sets of limiting blocks (410) and limiting grooves (411), which are symmetrically arranged in the storage area. On both sides of the frame (405), the box body (2) is provided with a liquid storage chamber (8), the liquid storage chamber (8) is connected to the liquid collection tank (6) through the first filter plate (7), the box body (2) is provided with a slag collection chamber (10), the slag collection chamber (10) is connected to the liquid collection tank (6) through the through hole (9), the surface of the slag collection chamber (10) is inlaid with a second filter plate (11), the slag collection chamber (10) is connected to the liquid storage chamber (8) through the second filter plate (11).

5. The pickling apparatus for phosphating self-tapping drywall screws according to claim 1, characterized in that: A liquid supply pump (12) is fixedly connected to the side of the box (2). A first liquid guide pipe (13) is fixedly connected to the lower surface of the liquid supply pump (12). The other end of the first liquid guide pipe (13) passes through the inside of the liquid storage tank (8). A second liquid guide pipe (14) is fixedly connected to the upper surface of the liquid supply pump (12). The other end of the second liquid guide pipe (14) is fixedly connected to the side of the spray head (5).

6. The pickling apparatus for phosphating self-tapping drywall screws according to claim 1, characterized in that: The side of the box (2) is connected to a first compartment door (15) via a hinge. The position of the first compartment door (15) corresponds to the position of the pickling compartment (3). An observation window is embedded on the surface of the first compartment door (15). The side of the box (2) is connected to a second compartment door (16) via a hinge. The position of the second compartment door (16) corresponds to the position of the slag collection compartment (10).

7. The pickling apparatus for phosphating self-tapping drywall screws according to claim 4, characterized in that: The side of the box (2) is equipped with an inlet pipe (17) and a drain pipe (18). The positions of the inlet pipe (17) and the drain pipe (18) correspond to the positions of the storage tank (8). Valves are provided on the surfaces of the inlet pipe (17) and the drain pipe (18).

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