A phosphating treatment device and process method for the surface of chain plates

Abstract

The present invention belongs to the technical field of phosphating treatment on the surface of chain plates, and relates to a phosphating treatment device and a process method for the surface of chain plates. The device includes a base, a movable plate, a spraying mechanism, a rotating plate, a ratchet wheel, an L-shaped bracket, a liquid collecting tank, and a limit support mechanism. During the process of the elevation of the movable plate, due to the action of the L-shaped bracket and the second spring telescopic rod, the movable plate tilts, increasing the area of the chain plate in contact with the phosphating solution, and the tilting direction changes in a circular pattern. As a result, the phosphating solution on the movable plate flows in a spiral manner, further increasing the contact area between the chain plate and the phosphating solution. The parts of the chain plate that cannot be sprayed come into contact with the phosphating solution for phosphating treatment. During the tilting process of the movable plate, the chain plate moves in the chain plate placement frame, so that the parts of the chain plate in contact with the chain plate placement frame and the fixed frame constantly change, ensuring that every part of the chain plate can be subjected to phosphating treatment.

Description

Technical Field

[0001] The present invention belongs to the technical field of phosphating treatment on the surface of chain plates, and relates to a device and a process method for phosphating treatment on the surface of chain plates. Background Art

[0002] Phosphating is a process of forming a phosphate chemical conversion film through chemical and electrochemical reactions. The formed phosphate conversion film is called a phosphating film. The main purposes of phosphating are to provide protection for the base metal, prevent the metal from being corroded to a certain extent, be used as a primer before painting to improve the adhesion and anti-corrosion ability of the paint film layer, and play a role in reducing friction and lubrication in the metal cold working process.

[0003] In the current phosphating treatment device, the workpiece is directly sprayed with phosphating solution for phosphating treatment. There are the following problems: the parts of the workpiece that cannot be sprayed cannot fully contact the phosphating solution, and the parts of the workpiece in contact with the support frame cannot fully contact the phosphating solution, resulting in incomplete phosphating treatment in some parts of the workpiece, uneven overall phosphating, low quality of phosphating treatment, and affecting subsequent process treatment.

[0004] To solve the above problems, the present invention proposes a device and a process method for phosphating treatment on the surface of chain plates. Summary of the Invention

[0005] To solve the problems in the background art, the present invention proposes a device and a process method for phosphating treatment on the surface of chain plates.

[0006] To achieve the above object, the technical solution adopted by a device for phosphating treatment on the surface of chain plates in the present invention is as follows: a base, on which a rotating plate is rotatably provided; a motor for driving the rotation of the rotating plate is provided on the base;

[0007] A movable plate, on the upper end surface of which a chain plate placing frame is provided; a lifting mechanism is provided between the movable plate and the rotating plate; the top end of the lifting mechanism is ball-jointed with the movable plate through a first movable member;

[0008] A ratchet wheel, which is drivingly connected to the rotating plate;

[0009] An L-shaped bracket; one end of the L-shaped bracket is fixed on the ratchet wheel, and the other end of the L-shaped bracket is hinged with a second spring telescopic rod; an annular sliding groove is formed at the bottom of the movable plate, and the push rod of the second spring telescopic rod is slidably arranged in the annular sliding groove through a sliding member;

[0010] A spraying mechanism, which is arranged above the movable plate;

[0011] A limiting and supporting mechanism is provided between the base and the movable plate.

[0012] Further, the lifting mechanism includes a rotating shaft, a sleeve, and a first spring telescopic rod;

[0013] The rotating shaft is fixedly arranged on the rotating plate; a thread is provided on the rotating shaft;

[0014] The sleeve is sleeved on the rotating shaft and is in threaded connection with the rotating shaft; the upper end of the sleeve is movably connected to the movable plate through a first movable member;

[0015] The push rod of the first spring telescopic rod is movably connected to the movable plate through a second movable member; the base of the first spring telescopic rod is fixedly arranged on the circumferential surface of the sleeve; there are a plurality of first spring telescopic rods, which are evenly distributed on the circumferential surface of the sleeve.

[0016] Further, the spraying mechanism includes a liquid supply tray and a cylinder; a plurality of liquid supply nozzles are installed at the lower end of the liquid supply tray; the input port of the liquid supply tray is communicated with a liquid supply tank;

[0017] A U-shaped bracket is fixedly arranged on the base, and the cylinder is fixedly arranged on the U-shaped bracket; the push rod of the cylinder is fixedly connected to the liquid supply tray.

[0018] Further, a top rod is hinged to the rotating plate through a hinge shaft; a torsion spring is arranged on the hinge shaft, one end of the torsion spring is fixedly connected to the rotating plate, and the other end of the torsion spring is fixedly connected to the top rod; the top rod cooperates with the ratchet wheel.

[0019] Further, a liquid collecting tank cooperating with the movable plate is fixedly arranged on the base.

[0020] Further, the limiting and supporting mechanism includes a connecting rod, a spring, and a third movable member;

[0021] A chute is formed on the base, one end of the connecting rod is slidably arranged in the chute; the other end of the connecting rod is fixedly provided with a third movable member, and the third movable member is spherically hinged to the movable plate; the spring abuts between the connecting rod and the inner wall of the chute.

[0022] Further, a T-shaped chute is formed on the base, and a T-shaped slider is fixedly arranged at the bottom of the ratchet wheel, and the T-shaped slider cooperates with the T-shaped chute.

[0023] Further, a fixing frame for placing the chain pieces is fixedly arranged in the chain piece placement frame; a liquid discharge hole is formed at the bottom of the chain piece placement frame.

[0024] Further, a notch communicating with the annular chute is provided on the movable plate.

[0025] In a method for phosphating the surface of chain pieces in the present invention, it includes: first, placing the chain pieces into the chain piece placement frame;

[0026] Start the spray mechanism, and then start the motor; the motor drives the rotating plate to rotate, the rotating plate drives the lifting mechanism to rise, and then drives the movable plate to rise; at the same time, the rotating plate drives the ratchet wheel to rotate, and then drives the L-shaped bracket to rotate along the annular chute; during the rising process of the movable plate, under the pulling of the L-shaped bracket and the second spring telescopic rod, the movable plate swings.

[0027] After phosphating is completed, turn off the spray mechanism. Then reverse the motor, and lower the movable plate through the lifting mechanism until it returns to its original state.

[0028] Compared with the prior art, the present invention has the following beneficial effects: during the process of the movable plate gradually rising driven by the sleeve, due to the action of the L-shaped bracket and the second spring telescopic rod, the movable plate tilts, making the contact area between the chain plate and the dripping phosphating solution larger, and the tilting direction changes circularly, making the phosphating solution on the chain plate flow in a spiral shape, further increasing the contact area between the chain plate and the dripping phosphating solution, enabling the parts that cannot be directly sprayed by the chain plate to come into contact with the phosphating solution, so that all parts are subjected to phosphating treatment, making the phosphating more uniform, and at the same time, the flow of the phosphating solution on the chain plate makes the phosphating treatment more uniform in thickness. And due to the tilt of the movable plate, the chain plate tilts, and then more parts on the chain plate are sprayed.

[0029] During the tilting process of the movable plate, the chain plate will move in the chain plate placement frame, making the parts where the chain plate contacts the chain plate placement frame and the fixing frame constantly change, so that each part of the chain plate can be subjected to phosphating treatment. Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of the present invention;

[0031] Figure 2 is the sectional view of the present invention;

[0032] Figure 3 is the structural schematic diagram of the ratchet wheel in the present invention;

[0033] Figure 4 is the structural schematic diagram of the chain plate placement frame in the present invention;

[0034] Figure 5 is the schematic diagram of the annular chute in the present invention.

[0035] In the figure: 1. Base 1; 2. U-shaped bracket; 3. Cylinder; 4. Liquid supply tray; 5. Liquid supply nozzle; 6. Chain plate placement frame; 7. Movable plate; 8. Liquid collection tank; 9. L-shaped bracket; 10. Rotating plate; 11. Ratchet wheel; 12. Rotating shaft; 13. Connecting rod; 14. Chute; 15. Spring; 16. Annular chute; 17. Sleeve; 18. First spring telescopic rod; 19. First movable part; 20. Second movable part; 21. Sliding part; 22. Second spring telescopic rod; 23. Motor; 24. T-shaped slider; 25. Third movable part; 26. Push rod; 27. Fixed frame; 28. Chain plate; 29. Drain hole. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1-5 shown, the technical solution adopted by the present invention is as follows: A phosphating treatment device for the surface of chain plates, including a base 1, a ratchet wheel 11, a movable plate 7, an L-shaped bracket 9, a lifting mechanism, a spraying mechanism, a liquid collection tank 8, and a limit support mechanism.

[0038] A rotating plate 10 is rotatably arranged on the base 1. The base 1 is provided with a motor installation groove, and a motor 23 is fixedly installed in the motor installation groove. The motor shaft of the motor 23 is drivingly connected to the rotating plate 10. The motor 23 drives the rotating plate 10 to rotate.

[0039] A chain plate placement frame 6 is arranged on the upper end surface of the movable plate 7. A fixed frame 27 for placing the chain plate 28 is fixedly arranged in the chain plate placement frame 6. Drain holes 29 are opened at the bottoms of the four side surfaces of the chain plate placement frame 6. The phosphating solution falling into the chain plate placement frame 6 performs phosphating treatment on the chain plate 28, and then is discharged through the drain holes 29.

[0040] A lifting mechanism is arranged between the movable plate 7 and the rotating plate 10.

[0041] The lifting mechanism includes a rotating shaft 12, a sleeve 17, and a first spring telescopic rod 18.

[0042] The lower end of the rotating shaft 12 is fixed at the axis center on the rotating plate 10. Threads are provided on the upper part of the rotating shaft 12, and the sleeve 17 is threadedly connected to the rotating shaft 12. A first movable member 19 is fixedly arranged at the top end of the sleeve 17. The first movable member 19 is spherically hinged to the center of the movable plate 7. There are multiple first spring telescopic rods 18, which are evenly distributed on the circumferential surface of the sleeve 17. The base of the first spring telescopic rod 18 is hinged to the sleeve 17, and the top end of the push rod of the first spring telescopic rod 18 is fixed with a second movable member 20, and the second movable member 20 is spherically hinged to the movable plate 7.

[0043] The rotating plate 10 rotates, driving the rotating shaft 12 to rotate, and then driving the sleeve 17 to rise, and further causing the movable plate 7 to rise.

[0044] The base 1 is provided with an annular T-shaped sliding groove, and a T-shaped slider 24 is fixedly arranged on the bottom surface of the ratchet wheel 11. The T-shaped slider 24 is matched with the T-shaped sliding groove. The ratchet wheel 11 is rotationally arranged on the base 1 through the cooperation of the T-shaped slider 24 and the T-shaped sliding groove. The ratchet wheel 11 is drivingly connected to the rotating plate 10. A plurality of ejector rods 26 are hinged on the rotating plate 10 through a hinge shaft, and the ejector rods 26 are matched with the teeth of the ratchet wheel 11. A torsion spring is sleeved on the hinge shaft, one end of the torsion spring is fixedly connected to the rotating plate 10, and the other end of the torsion spring is fixedly connected to the ejector rod 26. The rotating plate 10 drives the ratchet wheel 11 to rotate unidirectionally through the ejector rod 26. The setting of the torsion spring drives the ejector rod 26 to move, so that the ejector rod 26 moves to the tooth root between two teeth of the ratchet wheel 11.

[0045] One end of the L-shaped bracket 9 is fixedly arranged on the ratchet wheel 11. The other end of the L-shaped bracket 9 is hinged with a second spring telescopic rod 22 through a hinge seat. The push rod of the second spring telescopic rod 22 is fixedly connected with a sliding member 21. An annular sliding groove 16 is provided on the bottom surface of the movable plate 7, and the sliding member 21 is slidably arranged in the annular sliding groove 16.

[0046] When the rotating plate 10 rotates, it drives the movable plate 7 to rise, and at the same time drives the ratchet wheel 11 to rotate, and the ratchet wheel 11 drives the L-shaped bracket 9 to rotate. The rise of the movable plate 7 causes the second spring telescopic rod 22 to elongate, so that the second spring telescopic rod 22 has elastic potential energy. The part of the movable plate 7 in contact with the sliding member 21 is subject to greater resistance. In this way, during the rising process of the movable plate 7, the part of the movable plate 7 in contact with the sliding member 21 rises at a slower speed, so that the movable plate 7 tilts towards one end of the sliding member 21. As the sliding member 21 rotates along the annular sliding groove 16, the part of the movable plate 7 subject to resistance changes continuously, causing the movable plate 7 to perform a circumferential swing. The movement track of the sliding member 21 is a spiral ascending shape. The phosphating solution in the chain piece placement frame 6 undergoes a spiral movement. Furthermore, the circumferential surfaces of the chain pieces 28 are all subject to phosphating treatment by the phosphating solution.

[0047] The movable plate 7 is provided with a notch communicating with the annular chute 16. When the sliding member 21 slides into the notch, due to the obstruction of the notch, the sliding member 21 vibrates under the action of inertia, thereby driving the movable plate 7 to vibrate, and shaking off the droplets hanging on the link 28 and the movable plate 7, preventing the phosphating solution from solidifying into a pendant structure at the liquid dropping position.

[0048] The spraying mechanism is arranged above the movable plate 7 on the base 1.

[0049] The spraying mechanism includes a liquid supply tray 4 and a cylinder 3.

[0050] A U-shaped bracket 2 is fixedly arranged on the base 1. The cylinder 3 is installed on the U-shaped bracket 2, and the push rod of the cylinder 3 movably passes through the U-shaped bracket 2 and is fixedly connected to the liquid supply tray 4. A plurality of liquid supply nozzles 5 are arranged on the lower end surface of the liquid supply tray 4. The liquid supply tray 4 is communicated with a liquid supply tank through a hose. The phosphating solution in the liquid supply tank enters the liquid supply tray 4 through the hose and is sprayed out through the liquid supply nozzles 5. It falls into the lower link placing frame 6, and the links 28 placed in the link placing frame 6 are subjected to phosphating treatment. The cylinder 3 can move the liquid supply tray 4 up and down to keep a proper distance between the liquid supply tray 4 and the link placing frame 6.

[0051] A plurality of support columns are fixed on the base 1, and the liquid collecting tank 8 is fixedly installed on the support columns. The liquid collecting tank 8 is annular and is matched with the movable plate 7. The phosphating solution sliding off the movable plate 7 is poured into the liquid collecting tank 8. The phosphating solution is collected for convenient subsequent treatment.

[0052] A limiting and supporting mechanism is arranged between the base 1 and the movable plate 7. The limiting and supporting mechanism has a supporting effect on the movable plate 7, and at the same time, when the rotating shaft 12 rotates, the sleeve 17 can rise along the rotating shaft 12.

[0053] The limiting and supporting mechanism includes a connecting rod 13, a spring 15, and a third movable member 25.

[0054] Symmetrically arranged chutes 14 are opened on the upper end surface of the base 1. There are two connecting rods 13, which are respectively arranged corresponding to the corresponding chutes 14. The lower end of the connecting rod 13 is arranged in the chute 14, and the upper end of the connecting rod 13 is hinged to the third movable member 25 through a hinge seat. The third movable member 25 is spherically hinged to the movable plate 7. The spring 15 abuts between the connecting rod 13 and the inner wall of the chute 14.

[0055] Under the combined action of the spring 15 and the movable plate 7, the lower end of the connecting rod 13 moves along the chute 14, thereby changing the length of the projection of the connecting rod 13 in the vertical direction to adapt to the change in the distance between the movable plate 7 and the base 1.

[0056] Working principle: In the initial state, the sleeve 17 is at the lowest position, and the movable plate 7 maintains a horizontal orientation under the action of the first spring telescopic rod 18. The connecting rod 13 is in an inclined state, and the spring 15 is in a compressed state. The second spring telescopic rod 22 is in a natural state.

[0057] During use, place the link 28 on the fixing frame 27 in the link placement frame 6. After the link 28 is placed in the link placement frame 6, the link 28 has a certain degree of freedom in the width and length directions, facilitating the phosphating solution dripping onto the link 28 to flow on the side of the link 28.

[0058] Then start the cylinder 3 and adjust the height of the liquid supply tray 4. When the liquid supply tray 4 reaches the appropriate height, stop the cylinder 3. Then open the liquid supply tray 4 and spray the link 28 on the movable plate 7, so that the phosphating solution phosphates the link 28. Then start the motor 23, the motor 23 drives the rotating plate 10 to rotate, the rotating shaft 12 rotates accordingly, driving the sleeve 17 to rise, and then raising the movable plate 7.

[0059] During the rising process of the movable plate 7, the second spring telescopic rod 22 is stretched and has elastic potential energy. During the rising process of the movable plate 7, in addition to overcoming the gravity of the movable plate 7, it also needs to overcome the elastic force of the second spring telescopic rod 22. The part of the movable plate 7 in contact with the sliding part 21 is subject to the resistance of the second spring telescopic rod 22, making the rising speed of the part of the movable plate 7 in contact with the sliding part 21 slower. Therefore, the movable plate 7 tilts towards the side of the sliding part 21 during the rising process. The movable plate 7 tilts, causing the link 28 to tilt, making the liquid droplets of the phosphating solution fall obliquely relative to the link 28, increasing the contact area between the liquid droplets and the link 28, and enabling a larger area of the link 28 to come into contact with the phosphating solution, thereby making the phosphating treatment of the link 28 more uniform. And as the tilt angle of the movable plate 7 increases, the contact area between the link 28 and the liquid droplets gradually increases, making the phosphating treatment of the link 28 more uniform.

[0060] During the tilting process of the movable plate 7, the first spring telescopic rod 18 located at the downward tilt of the movable plate 7 is squeezed and has upward elastic potential energy, and the first spring telescopic rod 18 located at the upward tilt of the movable plate 7 is stretched and has downward elastic potential energy. The movable plate 7 has a tendency to change to a horizontal state.

[0061] As the movable plate 7 continues to rise, the second spring telescopic rod 22 is stretched longer and longer, and the elastic potential energy of the second spring telescopic rod 22 gradually increases. The rising speed of the sliding part 21 gradually slows down, while the rising speed at the center of the movable plate 7 remains unchanged, causing the tilt angle of the movable plate 7 to gradually increase. When the second spring telescopic rod 22 is stretched to the maximum stroke, the sleeve 17 continues to drive the center of the movable plate 7 to rise. Since the sliding part 21 no longer rises, the tilt angle of the movable plate 7 towards the sliding part 21 continuously increases.

[0062] The rotating plate 10 rotates to drive the ratchet wheel 11 to rotate through the ejector rod 26. The ratchet wheel 11 drives the L-shaped bracket 9 to rotate around the axis of the rotating plate 10, thereby causing the sliding member 21 to rotate along the annular chute 16. Therefore, when the sliding member 21 is at a certain position in the annular chute 16, the movable plate 7 tilts in this direction. Therefore, as the sliding member 21 moves, the movable plate 7 tilts in different directions. As the sliding member 21 continuously moves around the annular chute 16, the tilting direction of the movable plate 7 changes circularly. Due to the certain surface tension of the liquid, the phosphating solution on the link 28 flows in a spiral manner under the action of gravity and surface tension. Due to the flow of the phosphating solution, a larger area of the link 28 comes into contact with the phosphating solution, thereby making the phosphating treatment more uniform. At the same time, due to the flow of the phosphating solution, the phosphating solution droplets do not stay in the same position for a long time, making the thickness of the phosphating treatment more uniform.

[0063] During the circular tilting movement of the movable plate 7, the phosphating solution falling into the link placement frame 6 flows along the movable plate 7 under the drive of the movable plate 7, so that the parts of the link 28 that cannot be directly sprayed also come into contact with the phosphating solution, and a more uniform phosphating treatment is carried out on the link 28. When the movable plate 7 tilts, the link 28 moves along the side wall of the link placement frame 6 as the movable plate 7 tilts within the link placement frame 6. Thus, the position where the lower surface of the link 28 contacts the fixed frame 27 changes at any time, so that each part of the link 28 is subjected to phosphating treatment. At the same time, due to the tilting of the movable plate 7, the phosphating solution sprayed by the liquid supply nozzle 5 falls on the side surface of the link 28, making the phosphating treatment more uniform.

[0064] As the link 28 tilts and more and more phosphating solution accumulates on the link 28, the phosphating solution flows to the side surface of the link 28 and accumulates. The phosphating solution flows on the side surface of the link 28 and finally forms falling droplets on the side surface of the link 28. If the falling droplets are not processed in time, it will affect the uniformity of the thickness of the link 28 during phosphating treatment. When the sliding member 21 moves to the notch of the annular chute 16, the movable plate 7 vibrates once, so that the droplets hanging on the movable plate 7 and the link 28 are shaken off, making the thickness of the link 28 more uniform during the phosphating treatment. The sliding member 21 slides out from the notch and continues to move along the annular chute 16. The shaken-off droplets flow from the drain hole 29 to the movable plate 7.

[0065] Under the combined action of the spring 15 and the movable plate 7, the lower end of the connecting rod 13 moves along the chute 14, thereby changing the length of the projection of the connecting rod 13 in the vertical direction to adapt to the change in the distance between the movable plate 7 and the base 1.

[0066] When the sleeve 17 rises to the highest position, the spraying of the liquid supply nozzle 5 stops. At this time, the movable plate 7 is in an inclined state, and the inclination angle is the largest. The liquid on the movable plate 7 flows into the liquid collecting tank 8 under the action of gravity. Then reverse the motor 23 to make the rotating plate 10 rotate clockwise. During this process, the ratchet 11 remains stationary. The rotating plate 10 drives the rotating shaft 12 to rotate counterclockwise, so that the sleeve 17 moves downward along the rotating shaft 12, driving the movable plate 7 to move downward until the movable plate 7 returns to its initial state. The second spring telescopic rod 22 gradually contracts until it returns to its initial state.

[0067] The present invention also includes a phosphating treatment process method for the surface of chain plates. Using the above phosphating treatment device for the surface of chain plates, it includes the following steps:

[0068] First, place the chain plate 28 into the chain plate placement frame 6.

[0069] Start the spraying mechanism, and then start the motor 23. The motor 23 drives the rotating plate 10 to rotate. The rotating plate 10 drives the lifting mechanism to rise, and then drives the movable plate 7 to rise. At the same time, the rotating plate 10 drives the ratchet 11 to rotate, and then drives the L-shaped bracket 9 to rotate along the annular sliding groove 16. During the rising process of the movable plate 7, under the pulling of the L-shaped bracket 9 and the second spring telescopic rod 22, the movable plate 7 swings.

[0070] After the phosphating treatment is completed, turn off the spraying mechanism. Then reverse the motor 23, and lower the movable plate 7 through the lifting mechanism until it returns to its original state.

[0071] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A phosphating treatment device for the surface of chain plates, characterized in that, it includes: A base (1) on which a rotating plate (10) is rotatably arranged; a motor (23) for driving the rotation of the rotating plate (10) is arranged on the base (1); A movable plate (7) with a chain plate placement frame (6) arranged on the upper end surface thereof; a lifting mechanism is arranged between the movable plate (7) and the rotating plate (10); the top end of the lifting mechanism is ball-jointed with the movable plate (7) through a first movable member (19); A ratchet wheel (11) which is drivingly connected with the rotating plate (10); An L-shaped bracket (9); one end of the L-shaped bracket (9) is fixed on the ratchet wheel (11), and the other end of the L-shaped bracket (9) is hinged with a second spring telescopic rod (22); an annular chute (16) is opened at the bottom of the movable plate (7), and the push rod of the second spring telescopic rod (22) is slidably arranged in the annular chute (16) through a sliding member (21); A spraying mechanism which is arranged above the movable plate (7); A limiting and supporting mechanism is arranged between the base (1) and the movable plate (7).

2. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: The lifting mechanism includes a rotating shaft (12), a sleeve (17), and a first spring telescopic rod (18); The rotating shaft (12) is fixedly arranged on the rotating plate (10); a thread is provided on the rotating shaft (12); The sleeve (17) is sleeved on the rotating shaft (12) and is threadedly connected with the rotating shaft (12); the upper end of the sleeve (17) is movably connected with the movable plate (7) through a first movable member (19); The push rod of the first spring telescopic rod (18) is movably connected with the movable plate (7) through a second movable member (20); the base of the first spring telescopic rod (18) is fixedly arranged on the circumferential surface of the sleeve (17); there are multiple first spring telescopic rods (18) which are evenly distributed on the circumferential surface of the sleeve (17).

3. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: The spraying mechanism includes a liquid supply tray (4) and a cylinder (3); a plurality of liquid supply nozzles (5) are installed at the lower end of the liquid supply tray (4); the input port of the liquid supply tray (4) is communicated with a liquid supply tank; A U-shaped bracket (2) is fixedly arranged on the base (1), and the cylinder (3) is fixedly arranged on the U-shaped bracket (2); the push rod of the cylinder (3) is fixedly connected with the liquid supply tray (4).

4. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: A push rod (26) is hinged on the rotating plate (10) through a hinge shaft; a torsion spring is arranged on the hinge shaft, one end of the torsion spring is fixedly connected with the rotating plate (10), and the other end of the torsion spring is fixedly connected with the push rod (26); the push rod (26) cooperates with the ratchet wheel (11).

5. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: A liquid collecting tank (8) which cooperates with the movable plate (7) is fixedly arranged on the base (1).

6. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: The limit support mechanism includes a connecting rod (13), a spring (15), and a third movable member (25); A chute (14) is formed on the base (1), and one end of the connecting rod (13) is slidably arranged in the chute (14); the other end of the connecting rod (13) is fixedly provided with a third movable member (25), and the third movable member (25) is ball-jointed with the movable plate (7); the spring (15) abuts between the connecting rod (13) and the inner wall of the chute (14).

7. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: A T-shaped chute is formed on the base (1), and a T-shaped slider (24) is fixedly provided at the bottom of the ratchet wheel (11), and the T-shaped slider (24) is matched with the T-shaped chute.

8. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: A fixing frame (27) for placing the chain plates (28) is fixedly provided in the chain plate placing frame (6); a liquid discharge hole (29) is formed at the bottom of the chain plate placing frame (6).

9. A phosphating treatment device for the surface of chain plates according to claim 1, characterized in that: A notch communicating with the annular chute (16) is provided on the movable plate (7).

10. A phosphating treatment process method for the surface of chain plates, using a phosphating treatment device for the surface of chain plates described in claim 1, characterized in that: First, place the chain plates (28) into the chain plate placing frame (6); Start the spraying mechanism, and then start the motor (23); the motor (23) drives the rotating plate (10) to rotate, the rotating plate (10) drives the lifting mechanism to rise, and then drives the movable plate (7) to rise; at the same time, the rotating plate (10) drives the ratchet wheel (11) to rotate, and then drives the L-shaped bracket (9) to rotate along the annular chute (16); during the rising process of the movable plate (7), under the pulling of the L-shaped bracket (9) and the second spring telescopic rod (22), the movable plate (7) swings; After phosphating is completed, turn off the spraying mechanism; then reverse the motor (23), and lower the movable plate (7) through the lifting mechanism until it returns to its original state.

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