Coating circulating type conveying equipment and using method thereof

Abstract

The invention relates to the technical field of circulating paint conveying, and discloses circulating paint conveying equipment and a using method thereof.The circulating paint conveying equipment comprises a bottom plate, a box used for bearing paint is placed on the top of the bottom plate, and the circulating paint conveying equipment further comprises a sliding way, an arc-shaped rack is fixedly installed at the bottom of the sliding way; the multiple sliding plates are arranged at the top of the sliding way in a sliding mode, and the top of each sliding plate is vertically provided with a barrel body; the moving assembly is arranged above the bottom plate, and the moving assembly is used for enabling the multiple sliding plates to move; and the discharging assembly is used for discharging the coating in the barrel body. According to the automatic paint discharging device, paint in the barrel bodies can be automatically discharged, the discharging time can be different according to the difference of the paint in the barrel bodies, the discharging pipe can be automatically blocked after discharging is completed, the situation that during proportioning, manual discharging is tedious is avoided, and then the rapidness of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of paint circulation feeding, and in particular to a paint circulation feeding device and a use method thereof. Background Art

[0002] Powder coating is completely different from general coatings. It exists in the form of fine powder. Powder coating is mainly divided into two categories: thermoplastic powder coating and thermosetting powder coating. Thermoplastic powder coating is composed of thermoplastic resin, pigment, filler, plasticizer and stabilizer. The powder coating needs to be mixed with various raw materials to form the finished product, which requires the various raw materials to be stored and transported separately.

[0003] For example, a circulating feeder for powder coating disclosed in the patent with announcement number CN209467683U can feed coating, but it does not have the function of automatically opening the valve to discharge the coating during feeding, which results in the The staff opens it manually, and the manual discharge is not accurate enough, which reduces the accuracy of the ingredients after transportation and reduces the effect of use. Therefore, it is urgent to design a paint circulating feeding equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a paint circulating feeding device and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A paint circulation feeding device comprises a bottom plate, a box for receiving paint is placed on the top of the bottom plate, and further comprises:

[0007] The slideway is fixedly installed horizontally on the top of the bottom plate, and an arc-shaped rack is fixedly installed at the bottom of the slideway;

[0008] Slide plates, there are multiple slide plates, multiple slide plates are slidably arranged on the top of the slideway, a slide column is vertically rotatably installed at the bottom of each slide plate, multiple slide columns are slidably installed inside the slideway, a barrel body is vertically installed on the top of the slide plate, and a discharge pipe connected to the barrel body is installed at the bottom of each slide plate;

[0009] A moving component is arranged above the bottom plate and is used to move the plurality of slide plates;

[0010] There are multiple material unloading components, and the multiple material unloading components are arranged on multiple slides. The material unloading components are used to unload the paint inside the barrel body.

[0011] As a further technical solution of the present invention, the unloading assembly includes: a baffle, which is horizontally arranged at the bottom of the discharge pipe, a mounting frame is fixedly installed on the surface of the discharge pipe, a first spring rod is horizontally installed on the side of the mounting frame, the fixed end and the telescopic end of the first spring rod are connected by a spline sliding connection, the telescopic end of the first spring rod is fixedly installed on the side of the baffle, and a strip plate is fixedly installed on the side of the baffle.

[0012] As a further technical solution of the present invention, a second spring rod is vertically fixedly installed at the bottom of the mounting frame, the fixed end and the telescopic end of the second spring rod are slidingly connected by a spline, a spur rack is horizontally fixedly installed at the bottom of the telescopic end of the second spring rod, an extension plate is fixedly installed at the end of the spur rack, and a slope is provided at the end of the extension plate away from the spur rack.

[0013] As a further technical solution of the present invention, a rotating column and a rotating rod are vertically rotatably installed at the bottom of the skateboard, a one-way bearing is sleeved on the end of the rotating column surface, a second pulley is fixedly sleeved on the outer ring surface of the one-way bearing, a first pulley is fixedly installed on the end of the rotating rod, a second belt is sleeved on the surfaces of the first pulley and the second pulley, a gear is fixedly sleeved on the surface of the rotating column, and when the gear and the arc rack are in contact, the gear and the arc rack are meshed, and the gear diameter in each unloading component is different.

[0014] As a further technical solution of the present invention, a sleeve disc is fixedly sleeved on the surface of the rotating column, a torsion spring is vertically fixedly installed on the top of the sleeve disc, the top of the torsion spring is fixedly installed on the bottom of the slide, and the torsion spring is sleeved on the surface of the rotating column.

[0015] As a further technical solution of the present invention, a ring is fixedly sleeved on the surface of the rotating rod, a through opening is opened on the ring, a T-slot is opened at one end of the ring opening, a T-block is slidably arranged inside the T-slot, a third spring is fixed on the inner end of the T-slot, and the other end of the third spring is fixedly installed on the side of the T-block.

[0016] As a further technical solution of the present invention, the end of the extension plate away from the spur rack is located at the opening of the ring. When the ramp contacts the opening of the ring, the ramp slides between the opening of the ring. The top of the strip plate is hinged with a convex tooth through an elastic hinge. The convex tooth is used to limit the spur rack. A paddle plate is also fixedly sleeved on the rotating rod. When the paddle plate contacts the strip plate, the paddle plate slides between the strip plate.

[0017] As a further technical solution of the present invention, the moving component includes: two round rollers, the surfaces of the two round rollers are sleeved with the first belt, each end of the skateboard is fixedly installed with a protrusion, and the ends of the multiple protrusions away from the skateboard are fixedly installed on the outside of the first belt.

[0018] As a further technical solution of the present invention, columns are vertically fixed at the bottom of the two circular rollers, the ends of the two columns are rotatably installed on the top of the base plate, a first motor is installed at the bottom of the base plate, and the output shaft of the first motor is installed at the bottom of the corresponding column.

[0019] A method for using a paint circulating feeding device comprises the following steps:

[0020] S1: First, the paint is loaded into the corresponding barrel. When the paint needs to be mixed, the first motor is started to drive the column to rotate, the column rotation drives the round roller to rotate, the round roller rotation drives the belt to rotate, the belt rotation drives the convex block to rotate, due to the setting of the slideway and the slide column, the convex block rotation drives the slide plate to rotate, the slide plate rotation drives the connecting parts thereon to rotate, and the circular feeding is realized;

[0021] S2: When the slide plate moves, the corresponding gear will mesh with the arc-shaped rack and make the gear rotate. The rotation of the gear drives the rotating column to rotate. At this time, the rotation of the rotating column will not drive the second pulley to rotate through the one-way bearing, but the rotation of the rotating column will drive the turntable to rotate and cause the torsion spring to generate torque. When the discharge pipe is located above the box body, the arc-shaped rack and the gear end the meshing, and the torsion spring generated by the torsion spring will cause the rotating column to rotate in the opposite direction. At this time, the rotation of the rotating column will drive the second pulley to rotate through the one-way bearing, and the rotation of the second pulley will drive the belt to rotate. The rotation of the belt drives the first pulley to rotate, and the rotation of the first pulley drives the rotating rod to rotate. The rotation of the rotating rod drives the paddle plate and the ring to rotate. The rotation of the ring will contact the slope and make the extension plate move downward. The downward movement of the extension plate drives the spur rack to move downward and causes the second spring rod to generate tension. In addition, due to the hysteresis characteristics of the third spring, when the ring rotates, the end of the T-block will slide away from the T-slot to block the opening of the ring. It should be noted that the length of the T-block is greater than the length of the ring opening. Therefore, the T-block does not The cam is then moved back and forth to move the toothed plate, and the toothed plate is ...

[0022] The beneficial effects of the present invention are:

[0023] Firstly, the present invention can automatically discharge the paint inside the barrel body through the arrangement of the discharge assembly, the slideway and the slide plate, and can set different discharge times according to the different paint inside each barrel body, and can also automatically block the discharge pipe after the discharge is completed, thus avoiding the cumbersome situation of manual discharge during the proportioning, thereby improving the convenience of the equipment;

[0024] Secondly, the present invention, through the arrangement of the unloading component and the moving component, can circulate the barrel containing the paint, avoiding the need to move the proportioning box according to the position of the barrel during proportioning, thereby improving the use efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a paint circulating feeding device proposed by the present invention;

[0026] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0027] Figure 3 A side structural schematic diagram of a paint circulating feeding device proposed by the present invention;

[0028] Figure 4 A schematic diagram of the bottom connection structure of a slide plate of a paint circulation feeding device proposed by the present invention;

[0029] Figure 5 This is a schematic structural diagram of a paint circulation feeding device proposed by the present invention with the slide plate removed;

[0030] Figure 6 for Figure 5 A magnified schematic diagram of part B;

[0031] Figure 7 This is a schematic structural diagram of a paint circulating feeding device after the sleeve ring and T-block are separated.

[0032] In the figure: 1, bottom plate; 2, slideway; 3, first belt; 4, round roller; 5, slide plate; 6, barrel; 7, box; 8, column; 9, discharge pipe; 10, mounting frame; 11, first spring rod; 12, baffle; 13, second spring rod; 14, straight rack; 15, extension plate; 16, strip plate; 17, slide column; 18, arc rack; 19, rotating column; 20, torsion spring; 21, sleeve; 22, gear; 23, second belt; 24, first pulley; 25, second pulley; 26, one-way bearing; 27, rotating rod; 28, ramp; 29, collar; 30, dial plate; 31, T-slot; 32, T-block; 33, third spring; 34, convex tooth. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Please refer to the attached Figure 1 -Attached Figure 7 , a paint circulation feeding equipment, comprising a bottom plate 1, a box body 7 for receiving paint is placed on the top of the bottom plate 1, and also comprises: a slide 2, a slide plate 5, a moving assembly and a material discharge assembly, the slide 2 is horizontally fixedly installed on the top of the bottom plate 1, an arc-shaped rack 18 is fixedly installed at the bottom of the slide 2, there are multiple slide plates 5, multiple slide plates 5 are slidably arranged on the top of the slide 2, each slide plate 5 is vertically rotatably installed with a slide column 17 at the bottom, multiple slide columns 17 are slidably installed inside the slide 2, a barrel body 6 is vertically installed on the top of the slide plate 5, and a discharge pipe 9 connected to the barrel body 6 is installed at the bottom of each slide plate 5, a moving assembly is arranged above the bottom plate 1, and the moving assembly is used to move the multiple slide plates 5, there are multiple material discharge assemblies, multiple material discharge assemblies are arranged on multiple slide plates 5, and the material discharge assembly is used to discharge the paint inside the barrel body 6;

[0036] As described above, the paint inside the barrel body 6 can be automatically discharged, and the discharge time can be different according to the different paint inside each barrel body 6, and the discharge pipe 9 can be automatically blocked after the discharge is completed.

[0037] Please refer to the attached Figure 1 -Attached Figure 7In a preferred embodiment, the unloading assembly includes: a baffle 12, the baffle 12 is horizontally arranged at the bottom of the discharge pipe 9, a mounting frame 10 is fixedly installed on the surface of the discharge pipe 9, a first spring rod 11 is horizontally installed on the side of the mounting frame 10, the fixed end and the telescopic end of the first spring rod 11 are connected by spline sliding, the telescopic end of the first spring rod 11 is fixedly installed on the side of the baffle 12, a strip plate 16 is fixedly installed on the side of the baffle 12, a second spring rod 13 is vertically fixedly installed at the bottom of the mounting frame 10, and the fixed end and the telescopic end of the second spring rod 13 are connected by spline sliding. The telescopic end of the second spring rod 13 is horizontally fixedly installed with a spur rack 14 at the bottom, and an extension plate 15 is fixedly installed at the end of the spur rack 14. The end of the extension plate 15 away from the spur rack 14 is provided with a slope 28. The bottom of the slide plate 5 is vertically rotatably installed with a rotating column 19 and a rotating rod 27. The end of the surface of the rotating column 19 is sleeved with a one-way bearing 26, and the outer ring surface of the one-way bearing 26 is fixedly sleeved with a second pulley 25. The end of the rotating rod 27 is fixedly installed with a first pulley 24. The surfaces of the first pulley 24 and the second pulley 25 are sleeved with a second belt 23. The surface of the rotating column 19 is fixedly sleeved with a one-way bearing 26. The outer ring surface of the one-way bearing 26 is fixedly sleeved with a second pulley 25. The first pulley 24 and the second pulley 25 are sleeved with a second belt 23. A gear 22 is fixedly sleeved, and when the gear 22 and the arc-shaped rack 18 are in contact, the gear 22 and the arc-shaped rack 18 are meshed. The diameter of the gear 22 in each blanking assembly is different. A sleeve 21 is fixedly sleeved on the surface of the rotating column 19, and a torsion spring 20 is vertically fixedly installed on the top of the sleeve 21. The top of the torsion spring 20 is fixedly installed on the bottom of the slide 5. The torsion spring 20 is sleeved on the surface of the rotating column 19. A sleeve ring 29 is fixedly sleeved on the surface of the rotating rod 27. A through opening is opened on the sleeve ring 29. A T-shaped slot 31 is opened at one end of the opening of the sleeve ring 29. A T-shaped block is slidably arranged inside the T-shaped slot 31 32, a third spring 33 is fixed at the inner end of the T-slot 31, and the other end of the third spring 33 is fixedly installed on the side of the T-block 32, the end of the extension plate 15 away from the spur rack 14 is located at the opening of the collar 29, and when the ramp 28 and the opening of the collar 29 are in contact, the ramp 28 and the opening of the collar 29 slide between them, and the top of the strip plate 16 is hinged with a convex tooth 34 through an elastic hinge, and the convex tooth 34 is used to limit the spur rack 14, and the rotating rod 27 is also fixedly sleeved with a dial plate 30, and when the dial plate 30 and the strip plate 16 are in contact, the dial plate 30 and the strip plate 16 slide between them;

[0038] Preferably, due to the arrangement of the arc-shaped rack 18, the gear 22 rotates an integer number of times, and the gear 22 has inconsistent diameters, so that the rotating column 19 rotates an inconsistent number of times, which facilitates quantitative feeding of different coatings.

[0039] Please refer to the attached Figure 1 -Attached Figure 4In a preferred embodiment, the moving assembly includes: a round roller 4, there are two round rollers 4, the first belt 3 is sleeved on the surface of the two round rollers 4, a protrusion is fixedly installed at the end of each slide plate 5, and the ends of the multiple protrusions away from the slide plate 5 are fixedly installed on the outside of the first belt 3, and the bottoms of the two round rollers 4 are vertically fixed with columns 8, and the ends of the two columns 8 are rotatably installed on the top of the bottom plate 1, and the bottom of the bottom plate 1 is installed with a first motor, and the output shaft of the first motor is installed at the bottom of the corresponding column 8;

[0040] Specifically, the first motor drives the column 8 to rotate, the rotation of the column 8 drives the slide plate 5 to rotate, and the rotation of the slide plate 5 drives the connecting components thereon to rotate, thereby realizing cyclic feeding.

[0041] Working principle of the present invention:

[0042] First, the paint is loaded into the corresponding barrel 6. When the paint needs to be mixed, the first motor is started to drive the column 8 to rotate, the column 8 rotates to drive the roller 4 to rotate, the roller 4 rotates to drive the belt to rotate, the belt rotates to drive the convex block to rotate, due to the arrangement of the slideway 2 and the slide column 17, the convex block rotates to drive the slide plate 5 to rotate, the slide plate 5 rotates to drive the connecting parts thereon to rotate, and the circular feeding is realized;

[0043] When the slide plate 5 moves, the corresponding gear 22 will mesh with the arc-shaped rack 18 and rotate the gear 22. The rotation of the gear 22 drives the rotating column 19 to rotate. At this time, the rotation of the rotating column 19 will not drive the second pulley 25 to rotate through the one-way bearing 26, but the rotation of the rotating column 19 will drive the turntable to rotate and cause the torsion spring 20 to generate a torsion force. When the discharge pipe 9 is located above the box body 7, the arc-shaped rack 18 and the gear 22 end the meshing, and the torsion force generated by the torsion spring 20 will cause the rotating column 19 to rotate in the opposite direction. At this time, the rotation of the rotating column 19 will drive the second pulley 25 to rotate through the one-way bearing 26, and the rotation of the second pulley 25 drives the belt to rotate, and the belt rotation drives the first pulley 24 The first pulley 24 rotates, driving the rotating rod 27 to rotate, and the rotating rod 27 drives the shifting plate 30 and the collar 29 to rotate. The collar 29 rotates and contacts the slope 28 and causes the extension plate 15 to move downward. The downward movement of the extension plate 15 drives the spur rack 14 to move downward and causes the second spring rod 13 to generate tension. In addition, due to the hysteresis characteristics of the third spring 33, when the collar 29 rotates, the end of the T-block 32 will slide away from the T-slot 31 to block the opening of the collar 29. It should be noted that the length of the T-block 32 is greater than the length of the opening of the collar 29. Therefore, the T-block 32 will not separate from the T-slot 31. In addition, due to the arc-shaped rack 18 The setting makes the gear 22 rotate an integer number of times, and the gear 22 diameters are inconsistent, so that the rotating column 19 rotates an inconsistent number of times, which is convenient for quantitative feeding of different coatings, so that the torsion spring 20 can release the torque while the spur rack 14 is below the collar 29. In addition, the rotation of the paddle plate 30 will drive the strip plate 16 to move, and the movement of the strip plate 16 will drive the baffle 12 to move and make the first spring rod 11 generate elastic force to release the baffle 12 from blocking the feeding pipe. In addition, the movement of the strip plate 16 will also drive the convex tooth 34 to move. Since one end of the convex tooth 34 is hinged to the strip plate 16 and the setting of the spur rack 14, the convex tooth 34 can be smoothly The cam 34 is blocked by the spur rack 14 and cannot move towards the direction close to the cam 30, so as to limit the baffle 12 and ensure the stability of the material discharge from the discharge pipe. When the torsion force of the torsion spring 20 is released, the tension generated by the second spring rod 13 will reset the extension plate 15 to the opening of the collar 29 again, so that the spur rack 14 and the cam 34 are not in contact with each other. The elastic force generated by the first spring rod 11 can reset the baffle 12 to block the discharge pipe. In summary, the paint in different barrels 6 can be discharged by reciprocating in sequence without manual operation, thereby improving the convenience of use of the equipment.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A paint circulation feeding device, comprising a bottom plate (1), a box (7) for receiving paint is placed on the top of the bottom plate (1), characterized in that: Also includes: A slideway (2), wherein the slideway (2) is horizontally fixedly mounted on the top of the base plate (1), and an arc-shaped rack (18) is fixedly mounted on the bottom of the slideway (2); A slide plate (5), wherein there are a plurality of slide plates (5), each of which is slidably arranged on the top of the slideway (2), a slide column (17) is vertically rotatably installed at the bottom of each slide plate (5), and a plurality of slide columns (17) are slidably installed inside the slideway (2), a barrel body (6) is vertically installed at the top of each slide plate (5), and a discharge pipe (9) connected to the barrel body (6) is installed at the bottom of each slide plate (5); A moving assembly, the moving assembly being arranged above the bottom plate (1), and being used to move the plurality of slide plates (5); A material unloading assembly, wherein there are a plurality of the material unloading assemblies, the plurality of the material unloading assemblies are arranged on a plurality of slide plates (5), and the material unloading assemblies are used to unload the paint inside the barrel body (6).

2. A paint circulating feeding device according to claim 1, characterized in that: The unloading assembly comprises: a baffle (12), the baffle (12) being horizontally arranged at the bottom of a discharge pipe (9), a mounting frame (10) being fixedly mounted on the surface of the discharge pipe (9), a first spring rod (11) being horizontally mounted on the side of the mounting frame (10), a fixed end and a telescopic end of the first spring rod (11) being slidably connected via a spline, the telescopic end of the first spring rod (11) being fixedly mounted on the side of the baffle (12), and a strip plate (16) being fixedly mounted on the side of the baffle (12).

3. A paint circulating feeding device according to claim 2, characterized in that: A second spring rod (13) is vertically fixedly installed at the bottom of the mounting frame (10); the fixed end and the telescopic end of the second spring rod (13) are slidably connected via a spline; a spur rack (14) is horizontally fixedly installed at the bottom of the telescopic end of the second spring rod (13); an extension plate (15) is fixedly installed at the end of the spur rack (14); and a slope (28) is provided at the end of the extension plate (15) away from the spur rack (14).

4. The paint circulating feeding equipment according to claim 3, characterized in that: A rotating column (19) and a rotating rod (27) are installed at the bottom of the slide plate (5) for vertical rotation. A one-way bearing (26) is sleeved on the end of the surface of the rotating column (19). A second pulley (25) is fixedly sleeved on the outer ring surface of the one-way bearing (26). A first pulley (24) is fixedly installed at the end of the rotating rod (27). A second belt (23) is sleeved on the surfaces of the first pulley (24) and the second pulley (25). A gear (22) is fixedly sleeved on the surface of the rotating column (19). When the gear (22) and the arc-shaped rack (18) are in contact, the gear (22) and the arc-shaped rack (18) are meshed. The diameter of the gear (22) in each of the blanking components is different.

5. The paint circulating feeding equipment according to claim 4, characterized in that: A sleeve disc (21) is fixedly sleeved on the surface of the rotating column (19), a torsion spring (20) is vertically fixedly installed on the top of the sleeve disc (21), the top end of the torsion spring (20) is fixedly installed on the bottom of the slide plate (5), and the torsion spring (20) is sleeved on the surface of the rotating column (19).

6. The paint circulating feeding equipment according to claim 5, characterized in that: A collar (29) is fixedly sleeved on the surface of the rotating rod (27), and a through opening is provided on the collar (29). A T-shaped slot (31) is provided at one end of the opening of the collar (29), and a T-shaped block (32) is slidably arranged inside the T-shaped slot (31). A third spring (33) is fixed at the inner end of the T-shaped slot (31), and the other end of the third spring (33) is fixedly mounted on the side of the T-shaped block (32).

7. The paint circulating feeding equipment according to claim 6, characterized in that: The end of the extension plate (15) away from the spur rack (14) is located at the opening of the collar (29). When the ramp (28) and the opening of the collar (29) are in contact, the ramp (28) and the opening of the collar (29) slide between each other. The top of the strip plate (16) is hinged with a convex tooth (34) through an elastic hinge. The convex tooth (34) is used to limit the spur rack (14). The rotating rod (27) is also fixedly sleeved with a dial plate (30). When the dial plate (30) and the strip plate (16) are in contact, the dial plate (30) and the strip plate (16) slide between each other.

8. The paint circulating feeding equipment according to claim 7, characterized in that: The moving assembly comprises: a round roller (4), wherein there are two round rollers (4), the surfaces of the two round rollers (4) are sleeved with a first belt (3), and each end of the slide plate (5) is fixedly mounted with a protrusion, and the ends of the plurality of protrusions away from the slide plate (5) are fixedly mounted on the outside of the first belt (3).

9. The paint circulating feeding equipment according to claim 8, characterized in that: A column (8) is vertically fixedly installed at the bottom of the two round rollers (4), and the ends of the two columns (8) are rotatably installed on the top of the base plate (1). A first motor is installed at the bottom of the base plate (1), and the output shaft of the first motor is installed at the bottom of the corresponding column (8).

10. The method for using the paint circulating feeding equipment according to claim 9, characterized in that: The following steps are involved: S1: First, the paint is loaded into the corresponding barrel (6). When the paint needs to be mixed, the first motor is started to drive the column (8) to rotate. The rotation of the column (8) drives the roller (4) to rotate. The rotation of the roller (4) drives the belt to rotate. The rotation of the belt drives the protrusion to rotate. Due to the arrangement of the slideway (2) and the slide column (17), the rotation of the protrusion drives the slide plate (5) to rotate. The rotation of the slide plate (5) drives the connecting parts thereon to rotate, thereby realizing circular feeding. S2: When the slide plate (5) moves, the corresponding gear (22) will mesh with the arc-shaped rack (18) and cause the gear (22) to rotate. The rotation of the gear (22) drives the rotating column (19) to rotate. At this time, the rotation of the rotating column (19) will not drive the second pulley (25) to rotate through the one-way bearing (26), but the rotation of the rotating column (19) will drive the turntable to rotate and cause the torsion spring (20) to generate torsion. When the discharge pipe (9) is located above the box body (7), the arc-shaped rack (18) and the gear (22) end the meshing, and the torsion generated by the torsion spring (20) causes the rotating column (19) to rotate in the opposite direction. At this time, the rotation of the rotating column (19) will drive the second pulley (25) to rotate through the one-way bearing (26). The second pulley (25) rotates. The belt is driven to rotate, and the belt rotation drives the first pulley (24) to rotate. The rotation of the first pulley (24) drives the rotating rod (27) to rotate. The rotation of the rotating rod (27) drives the shifting plate (30) and the ring (29) to rotate. The ring (29) contacts the slope (28) and moves the extension plate (15) downward. The downward movement of the extension plate (15) drives the spur rack (14) to move downward and generates a pulling force on the second spring rod (13). In addition, due to the hysteresis characteristics of the third spring (33), when the ring (29) rotates, the end of the T-block (32) slides away from the T-slot (31) to block the opening of the ring (29). It should be noted that the length of the T-block (32) is greater than the opening of the ring (29). The length of the T-shaped block (32) is such that the T-shaped block (32) will not separate from the T-shaped groove (31). In addition, due to the arrangement of the arc-shaped rack (18), the number of revolutions of the gear (22) is an integer number, and the diameters of the gears (22) are not consistent, so that the number of revolutions of the rotating column (19) is not consistent, which is convenient for quantitative feeding of different coatings, so that the spur rack (14) is under the collar (29) during the release of the torsion spring (20). In addition, the rotation of the paddle plate (30) drives the strip plate (16) to move, and the movement of the strip plate (16) drives the baffle plate (12) to move and causes the first spring rod (11) to generate elastic force, so as to release the blocking of the baffle plate (12) on the feeding pipe. In addition, the movement of the strip plate (16) also drives the convex tooth (3 4) movement, due to the hinge connection between one end of the convex tooth (34) and the strip plate (16) and the arrangement of the spur rack (14), the convex tooth (34) can smoothly move in the direction away from the dial plate (30), while the convex tooth (34) is blocked by the spur rack (14) and cannot move in the direction close to the dial plate (30), so as to limit the baffle (12) and ensure the unloading stability of the unloading pipe. After the torsion force of the torsion spring (20) is released, the tension generated by the second spring rod (13) will make the extension plate (15) reset to the opening of the ring (29) again, so that the spur rack (14) and the convex tooth (34) are not in contact, and the elastic force generated by the first spring rod (11) can make the baffle (12) reset to block the unloading pipe.

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