Industrial closed suspension coating equipment

Abstract

The invention discloses industrial closed suspension coating equipment which comprises a sealing box, a rectangular groove is formed in the surface of the sealing box, a pair of movable doors are movably mounted in the rectangular groove, a plurality of ventilation grooves are formed in the side wall of the sealing box, a pair of hollow plates are clamped to the inner wall of the sealing box, and a sieve plate is mounted at the top of each hollow plate. The hollow plates correspond to the ventilation grooves in position and communicate with the ventilation grooves, a fixing cover is installed at the top of the sealing box, and a spraying mechanism is installed at the bottom of the fixing cover. Compared with the prior art, when the reset plate deforms, the U-shaped shaft can move in the rectangular pipe, the expansion shaft can be stressed to appear on the reset plate, the expansion shaft can abut against the surface of a workpiece, rigid extrusion in the clamping process is reduced, indentation on the surface of the workpiece is avoided, and in the reset process of the U-shaped shaft, the U-shaped shaft is not prone to deformation. The rubber balls and the inner wall of the rectangular pipe can be mutually extruded, the reset plate can shake, the dry and hard coating on the surface can be quickly shaken off, and the residual coating on the surface is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, in particular to an industrial closed hanging painting equipment. Background Art

[0002] Painting is an important part of modern product manufacturing process. It achieves the effects of rust prevention, corrosion prevention and decoration by manufacturing a layer of coating on the product. The current painting process has requirements on the thickness and uniformity of the surface coating. Therefore, in the painting process, there will be a lot of paint wasted. However, the existing equipment does not have the function of screening and collecting the paint, and the paint is prone to internal blockage during the spraying process, which affects the processing quality of the equipment and leads to an increase in the defective rate. For this reason, we propose an industrial closed hanging painting equipment to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide an industrial closed hanging painting equipment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an industrial closed hanging painting equipment, comprising a sealed box, a rectangular groove is provided on the surface of the sealed box, and a pair of movable doors are movably installed inside the rectangular groove, a plurality of ventilation grooves are provided on the side wall of the sealed box, a pair of hollow plates are clamped on the inner wall of the sealed box, a sieve plate is installed on the top of the hollow plate, the position of the hollow plate corresponds to the ventilation groove, the hollow plate and the ventilation groove are connected, and a fixed cover is installed on the top of the sealed box;

[0005] A spraying mechanism is installed at the bottom of the fixed cover, and the spraying mechanism includes a fixed plate, and the fixed plate is installed at the bottom of the fixed cover. A plurality of auxiliary limiting mechanisms are provided on the side wall of the fixed plate. A recovery mechanism is installed between the hollow plates, and the recovery mechanism is located directly below the spraying mechanism. When the workpiece needs to be painted, the workpiece can be quickly limited with the aid of the auxiliary limiting mechanism. With the action of the spraying mechanism and the recovery mechanism, the workpiece surface can be quickly painted, and excess paint can be quickly separated and recovered, thereby reducing waste in the painting process.

[0006] Preferably, the recycling mechanism includes a collecting box, which is clamped at the bottom of the sealed box and located between the hollow plates. A limiting plate is installed inside the collecting box, a plurality of circular grooves are formed on the limiting plate, and a grid plate is installed inside the circular grooves. A limiting basin is provided at the bottom of the grid plate, and the limiting basin is installed at the bottom of the circular grooves. Excess paint can be recovered and stored through the collecting box.

[0007] Preferably, a plurality of special-shaped grooves are provided on the side wall of the limiting basin, and a separation plate is fixedly connected inside the special-shaped groove, and the separation plate is elliptical. An elastic screen plate is installed at the bottom of the limiting basin, and a plurality of elastic plates are fixedly connected to the inner wall of the limiting basin, and connecting balls are fixedly connected between the elastic plates.

[0008] A plurality of buffer shafts are fixedly connected to the side wall of the connecting ball, and the buffer shafts are staggered with the elastic plates. A plurality of elastic barbs are fixedly connected to the bottom of the buffer shafts, and the bottom of the buffer shafts abuts against the surface of the elastic screen plate. When the paint is discharged, the float can abut against the bottom of the inner wall of the spherical screen plate, and the elastic sheet can rub against the inner wall of the spherical screen plate as the float slowly descends, thereby reducing blockage and drying, and quickly separating and discharging the paint, which is convenient for subsequent recycling of the paint.

[0009] Preferably, a rubber shaft is fixedly connected to the bottom of the connecting ball, the rubber shaft passes through the elastic screen plate and is fixedly connected to a suspension ball at the bottom, the bottom of the limiting basin is fixedly connected to a spherical screen plate, the inner wall of the spherical screen plate abuts against the bottom of the suspension ball, a mounting ring is fixedly connected to the side wall of the rubber shaft, an elastic sheet is fixedly connected to the side wall of the mounting ring, the elastic sheet is inclined and abuts against the inner wall of the spherical screen plate, a plurality of metal balls are fixedly connected to the side wall of the elastic sheet, and the floating ball can drive the connecting ball to move under the action of buoyancy, so that the mounting ring can abut against the bottom of the elastic screen plate, which can cause the elastic screen plate to deform and reduce blockage caused by accumulation of impurities inside.

[0010] Preferably, the auxiliary limiting mechanism comprises a plurality of L-shaped plates, each of which is fixedly connected to the side wall of the fixed plate, a rotating plate is rotatably provided at the bottom of the L-shaped plate, a mounting plate is fixedly connected to the top of the rotating plate, an annular groove is fixedly provided on the mounting plate, and an annular sieve plate is fixedly connected inside the annular groove;

[0011] A plurality of support shafts are fixedly connected to the side wall of the mounting plate, a limiting ring is fixedly connected between the support shafts, a plurality of U-shaped plates are fixedly connected to the limiting ring, and a threaded rod is rotatably provided inside the U-shaped plate, and a reset plate is fixedly connected to one end of the threaded rod. When the surface of the workpiece needs to be sprayed, the paint inside the storage chamber can be quickly sprayed out through the discharge groove, and as the rotating plate rotates, the paint can be evenly sprayed on the surface of the workpiece.

[0012] Preferably, a plurality of U-shaped shafts are fixedly connected to the inner wall of one side of the reset plate, a rectangular tube is provided on one side of the U-shaped shaft, the rectangular tube is fixedly connected to the inner wall of the other side of the reset plate, the U-shaped shaft is inserted into the rectangular tube, a plurality of rubber balls are fixedly connected to the U-shaped shaft, and the rubber balls are against the inner wall of the rectangular tube, an expansion shaft is provided at one end of the rectangular tube, the expansion shaft is fixedly connected to the reset plate, a friction pad is fixedly connected to the surface of the expansion shaft, when the reset plate is deformed, the U-shaped shaft can move inside the rectangular tube, the expansion shaft can be subjected to force to form a deformed plate, and can be against the surface of the workpiece, thereby reducing rigid extrusion during clamping and avoiding indentations on the surface of the workpiece.

[0013] Preferably, a plurality of telescopic rods are fixedly connected to the bottom of the fixing plate, the positions of the telescopic rods correspond to the mounting plate, a clamping ring is fixedly connected to the outer wall of the bottom of the telescopic rod, and a transmission shaft is fixedly connected to each of the clamping rings;

[0014] A storage cavity is installed at the bottom of the fixed plate, and a hollow tube is fixedly connected to the bottom of the storage cavity, the hollow tube is located between the telescopic rods, a movable tube is movably inserted into the hollow tube, a discharge groove is provided on the side wall of the movable tube, an annular groove is provided on the movable tube, and a transmission ring is movably provided inside the annular groove, and the cross-section of the transmission ring is "L"-shaped, a compression spring is fixedly connected between the bottom of the inner wall of the transmission ring and the annular groove, and a plurality of sponge blocks are fixedly connected to the bottom of the inner wall of the transmission ring. During the movement of the transmission ring, the sponge blocks are abutted against the surface of the discharge groove. During the movement of the transmission ring, the transmission shaft can push the transmission ring to move through the movement of the telescopic rod, and the compression spring inside the transmission ring can be deformed, so that the sponge blocks can be abutted against the outer wall of the discharge groove, so as to absorb the paint remaining on its surface.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the workpiece needs to be positioned, the present invention can clamp the bottom between the limiting rings, and can adjust the position of the threaded rod, so that the reset plate can be pressed against the surface of the workpiece, and the workpiece can be quickly limited. At the same time, the telescopic rod moves and can be pressed against the top of the workpiece, thereby enhancing the limiting effect and avoiding position deviation during the coating process;

[0017] 2. When the reset plate of the present invention is deformed, the U-shaped shaft can be moved inside the rectangular tube, the expansion shaft can be stressed to form a plate, and the plate can be pressed against the surface of the workpiece, thereby reducing rigid extrusion during the clamping process and avoiding indentations on the surface of the workpiece. In addition, as the U-shaped shaft is reset, the rubber ball can be squeezed against the inner wall of the rectangular tube, causing the reset plate to vibrate, and the dried paint on the surface can be quickly shaken off, thereby reducing the surface and paint residues.

[0018] 3. In the process of moving the telescopic rod, the transmission shaft can push the transmission ring to move, and the compression spring inside the transmission ring can be deformed, so that the sponge block can be pressed against the outer wall of the discharge trough, and the paint remaining on its surface can be absorbed to avoid drying and affecting the subsequent spraying efficiency;

[0019] 4. The present invention can drive the connecting ball to move under the action of buoyancy through the floating ball, so that the mounting ring can be against the bottom of the elastic screen plate, which can cause the elastic screen plate to deform and reduce the accumulation of impurities inside and cause blockage;

[0020] 5. When the paint is discharged through the present invention, the float can be against the bottom of the inner wall of the spherical screen plate, and the elastic sheet can rub against the inner wall of the spherical screen plate as the float slowly descends, which can reduce the blockage and drying, and quickly separate and discharge the paint, which is convenient for the subsequent recycling of the paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the sealing box of the present invention;

[0023] Figure 3 This is a schematic diagram of the bottom structure of the fixed cover of the present invention;

[0024] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram in the middle;

[0025] Figure 5 This is a schematic structural diagram of one end of an L-shaped plate of the present invention;

[0026] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0027] Figure 7 This is a schematic diagram of the bottom structure of the limiting basin of the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of the limiting basin of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the limiting basin of the present invention;

[0030] In the figure: 1, sealing box; 2, recovery mechanism; 3, auxiliary limiting mechanism; 4, spraying mechanism; 5, limiting basin; 11, movable door; 12, ventilation slot; 13, hollow plate; 14, fixed cover; 21, collection box; 22, limiting plate; 23, grid plate; 31, L-shaped plate; 32, rotating plate; 33, mounting plate; 331, annular sieve plate; 34, threaded rod; 35, support shaft; 36, limiting ring; 37, reset plate; 3 71. U-shaped shaft; 38. rectangular tube; 381. expansion shaft; 41. fixed plate; 42. storage chamber; 43. hollow tube; 44. telescopic rod; 45. snap ring; 46. transmission ring; 461. transmission shaft; 47. movable tube; 471. discharge trough; 51. spherical screen plate; 52. separation plate; 53. elastic plate; 54. connecting ball; 541. buffer shaft; 55. mounting ring; 551. elastic sheet; 56. rubber shaft. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-9 The present invention provides a technical solution: an industrial closed hanging painting equipment, comprising a sealed box 1, a rectangular groove is provided on the surface of the sealed box 1, and a pair of movable doors 11 are movably installed inside the rectangular groove, a plurality of ventilation grooves 12 are provided on the side wall of the sealed box 1, a pair of hollow plates 13 are clamped on the inner wall of the sealed box 1, a sieve plate is installed on the top of the hollow plate 13, the position of the hollow plate 13 corresponds to the ventilation groove 12, the hollow plate 13 and the ventilation groove 12 are connected, and a fixed cover 14 is installed on the top of the sealed box 1;

[0033] A spraying mechanism 4 is installed at the bottom of the fixed cover 14, and the spraying mechanism 4 includes a fixed plate 41, which is installed at the bottom of the fixed cover 14. A plurality of auxiliary limiting mechanisms 3 are arranged on the side wall of the fixed plate 41. A recovery mechanism 2 is installed between the hollow plates 13. The recovery mechanism 2 is located directly below the spraying mechanism 4. When the workpiece needs to be painted, the auxiliary limiting mechanism 3 can be used to quickly limit the workpiece. With the action of the spraying mechanism 4 and the recovery mechanism 2, the workpiece surface can be quickly painted, and the excess paint can be quickly separated and recovered, thereby reducing waste in the painting process.

[0034] The recovery mechanism 2 includes a collecting box 21, which is clamped at the bottom of the sealed box 1 and located between the hollow plates 13. A limiting plate 22 is installed inside the collecting box 21. A plurality of circular grooves are provided on the limiting plate 22, and a grid plate 23 is installed inside the circular groove. A limiting basin 5 is provided at the bottom of the grid plate 23, and the limiting basin 5 is installed at the bottom of the circular groove. Excess paint can be recovered and stored through the collecting box 21.

[0035] A plurality of special-shaped grooves are provided on the side wall of the limiting basin 5, and a separation plate 52 is fixedly connected inside the special-shaped groove. The separation plate 52 is elliptical. An elastic sieve plate is installed at the bottom of the limiting basin 5. A plurality of elastic plates 53 are fixedly connected to the inner wall of the limiting basin 5. A connecting ball 54 is fixedly connected between the elastic plates 53.

[0036] A plurality of buffer shafts 541 are fixedly connected to the side wall of the connecting ball 54. The buffer shafts 541 and the elastic plates 53 are staggered. A plurality of elastic barbs are fixedly connected to the bottom of the buffer shaft 541. The bottom of the buffer shaft 541 abuts against the surface of the elastic sieve plate. When the paint is discharged, the float can abut against the bottom of the inner wall of the spherical sieve plate 51. The elastic sheet 551 can rub against the inner wall of the spherical sieve plate 51 as the float slowly descends, thereby reducing blockage and drying, and quickly separating and discharging the paint, which is convenient for subsequent recycling of the paint.

[0037] A rubber shaft 56 is fixedly connected to the bottom of the connecting ball 54, and the rubber shaft 56 penetrates the elastic sieve plate and is fixedly connected to a suspension ball at the bottom. A spherical sieve plate 51 is fixedly connected to the bottom of the limiting basin 5, and the inner wall of the spherical sieve plate 51 is against the bottom of the suspension ball. A mounting ring 55 is fixedly connected to the side wall of the rubber shaft 56, and an elastic sheet 551 is fixedly connected to the side wall of the mounting ring 55. The elastic sheet 551 is inclined and is against the inner wall of the spherical sieve plate 51. A plurality of metal balls are fixedly connected to the side wall of the elastic sheet 551. The floating ball can drive the connecting ball 54 to move under the action of buoyancy, so that the mounting ring 55 can be against the bottom of the elastic sieve plate, which can cause the elastic sieve plate to deform and reduce the accumulation of impurities inside and cause blockage.

[0038] The auxiliary limiting mechanism 3 includes a plurality of L-shaped plates 31, each of which is fixedly connected to the side wall of the fixed plate 41, a rotating plate 32 is rotatably provided at the bottom of the L-shaped plate 31, a mounting plate 33 is fixedly connected to the top of the rotating plate 32, an annular groove is fixedly provided on the mounting plate 33, and an annular sieve plate 331 is fixedly connected inside the annular groove;

[0039] A plurality of support shafts 35 are fixedly connected to the side wall of the mounting plate 33, and a limiting ring 36 is fixedly connected between the support shafts 35. A plurality of U-shaped plates are fixedly connected to the limiting ring 36, and a threaded rod 34 is rotatably provided inside the U-shaped plate, and a reset plate 37 is fixedly connected to one end of the threaded rod 34. When the surface of the workpiece needs to be sprayed, the paint inside the storage chamber 42 can be quickly sprayed out through the discharge groove 471, and with the rotation of the rotating plate 32, the paint can be evenly sprayed on the surface of the workpiece, and when the workpiece needs to be positioned, the bottom can be clamped between the limiting rings 36, and the position of the threaded rod 34 can be adjusted, so that the reset plate 37 can be pressed against the surface of the workpiece, and the workpiece can be quickly limited. At the same time, the telescopic rod 44 moves and can press against the top of the workpiece to enhance the limiting effect and avoid position displacement during the painting process.

[0040] A plurality of U-shaped shafts 371 are fixedly connected to the inner wall of one side of the reset plate 37, a rectangular tube 38 is provided on one side of the U-shaped shaft 371, the rectangular tube 38 is fixedly connected to the inner wall of the other side of the reset plate 37, the U-shaped shaft 371 is inserted into the inside of the rectangular tube 38, a plurality of rubber balls are fixedly connected to the U-shaped shaft 371, and the rubber balls are against the inner wall of the rectangular tube 38, an expansion shaft 381 is provided at one end of the rectangular tube 38, the expansion shaft 381 is fixedly connected to the reset plate 37, a friction pad is fixedly connected to the surface of the expansion shaft 381, when the reset plate 37 is deformed, the U-shaped shaft 371 can be moved inside the rectangular tube 38, the expansion shaft 381 can be subjected to force to form a plate, can be against the surface of the workpiece, reduce rigid extrusion during the clamping process, avoid indentations on the surface of the workpiece, and as the U-shaped shaft 371 is reset, the rubber balls can be squeezed against the inner wall of the rectangular tube 38, the reset plate 37 can be shaken, the dried paint on the surface can be quickly shaken off, and the surface and paint residue can be reduced.

[0041] A plurality of telescopic rods 44 are fixedly connected to the bottom of the fixing plate 41. The position of the telescopic rods 44 corresponds to the mounting plate 33. A clamping ring 45 is fixedly connected to the outer wall of the bottom of the telescopic rod 44. The clamping ring 45 is fixedly connected to the transmission shaft 461.

[0042] A storage chamber 42 is installed at the bottom of the fixed plate 41, and a hollow tube 43 is fixedly connected to the bottom of the storage chamber 42. The hollow tube 43 is located between the telescopic rods 44, and a movable tube 47 is movably inserted inside the hollow tube 43. A discharge groove 471 is provided on the side wall of the movable tube 47, and an annular groove is provided on the movable tube 47, and a transmission ring 46 is movably provided inside the annular groove. The cross-section of the transmission ring 46 is "L"-shaped, and a compression spring is fixedly connected between the bottom of the inner wall of the transmission ring 46 and the annular groove, and a plurality of sponge blocks are fixedly connected to the bottom of the inner wall of the transmission ring 46. During the movement of the transmission ring 46, the sponge blocks are abutted against the surface of the discharge groove 471. In the process of moving the telescopic rod 44, the transmission shaft 461 can push the transmission ring 46 to move, and the compression spring inside the transmission ring 46 can be deformed, so that the sponge blocks can be abutted against the outer wall of the discharge groove 471, so that the paint remaining on its surface can be absorbed to avoid drying and affecting the subsequent spraying efficiency.

[0043] Working principle: First, when the workpiece needs to be painted, the auxiliary limiting mechanism 3 can be used to quickly limit the workpiece. With the action of the spraying mechanism 4 and the recovery mechanism 2, the workpiece surface can be quickly painted, and the excess paint can be quickly separated and recovered to reduce waste in the painting process. When the workpiece needs to be positioned, the bottom can be clamped between the limiting rings 36, and the position of the threaded rod 34 can be adjusted, so that the reset plate 37 can be pressed against the surface of the workpiece, and the workpiece can be quickly limited. At the same time, the telescopic rod 44 moves. It can be pressed against the top of the workpiece to enhance the limiting effect and avoid positional displacement during the coating process. When the reset plate 37 is deformed, the U-shaped shaft 371 can be moved inside the rectangular tube 38, so that the expansion shaft 381 is subjected to force to form a plate, which can be pressed against the surface of the workpiece, reducing rigid extrusion during the clamping process and avoiding indentations on the surface of the workpiece. When the U-shaped shaft 371 is reset, the rubber ball can be pressed against the inner wall of the rectangular tube 38, causing the reset plate 37 to shake, so that the dried paint on the surface can be quickly shaken off, reducing the surface and paint residue.

[0044] Then, when the workpiece surface needs to be sprayed, the paint in the storage chamber 42 can be quickly sprayed out through the discharge groove 471, and as the rotating plate 32 rotates, the paint can be evenly sprayed on the workpiece surface, and as the telescopic rod 44 moves, the transmission shaft 461 can push the transmission ring 46 to move, and the compression spring inside the transmission ring 46 can be deformed, so that the sponge block can be pressed against the outer wall of the discharge groove 471, and the paint remaining on its surface can be absorbed, so as to avoid drying and affecting the subsequent spraying efficiency;

[0045] Finally, after spraying is completed, the excess paint can be discharged along the grid plate 23 and can be collected inside the collection box 21, which is convenient for the operator to recycle and reuse. When the paint is transferred to the limit basin 5, the float at the bottom can drive the connecting ball 54 to move under the action of buoyancy, so that the mounting ring 55 can be against the bottom of the elastic screen plate, which can cause the elastic screen plate to deform and reduce the accumulation of impurities inside. The elastic sheet 551 can rub against the bottom of the inner wall of the spherical screen plate 51 as the float slowly descends, which can reduce the blockage and dryness, and quickly separate and discharge the paint, which is convenient for the subsequent recycling of the paint.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial closed hanging painting equipment, comprising a sealed box (1), characterized in that: A rectangular groove is provided on the surface of the sealed box (1), and a pair of movable doors (11) are movably installed inside the rectangular groove. A plurality of ventilation grooves (12) are provided on the side wall of the sealed box (1). A pair of hollow plates (13) are clamped on the inner wall of the sealed box (1). A sieve plate is installed on the top of the hollow plate (13). The position of the hollow plate (13) corresponds to the ventilation groove (12). The hollow plate (13) and the ventilation groove (12) are connected. A fixed cover (14) is installed on the top of the sealed box (1); A spraying mechanism (4) is installed at the bottom of the fixed cover (14), the spraying mechanism (4) comprising a fixed plate (41), the fixed plate (41) being installed at the bottom of the fixed cover (14), a plurality of auxiliary limiting mechanisms (3) being provided on the side wall of the fixed plate (41), a recovery mechanism (2) being installed between the hollow plates (13), the recovery mechanism (2) being located directly below the spraying mechanism (4).

2. The industrial closed hanging painting equipment according to claim 1, characterized in that: The recycling mechanism (2) comprises a collection box (21), the collection box (21) being clamped at the bottom of the sealed box (1) and located between the hollow plates (13), a limiting plate (22) being installed inside the collection box (21), a plurality of circular grooves being formed on the limiting plate (22), and a grid plate (23) being installed inside the circular grooves, a limiting basin (5) being provided at the bottom of the grid plate (23), and the limiting basin (5) being installed at the bottom of the circular grooves.

3. The industrial closed hanging painting equipment according to claim 2 is characterized in that: The side wall of the limiting basin (5) is provided with a plurality of special-shaped grooves, and a separation plate (52) is fixedly connected inside the special-shaped groove, and the separation plate (52) is elliptical. An elastic screen plate is installed at the bottom of the limiting basin (5), and a plurality of elastic plates (53) are fixedly connected to the inner wall of the limiting basin (5), and connecting balls (54) are fixedly connected between the elastic plates (53); A plurality of buffer shafts (541) are fixedly connected to the side wall of the connection ball (54), the buffer shafts (541) and the elastic plate (53) are arranged in a staggered manner, a plurality of elastic barbs are fixedly connected to the bottom of the buffer shaft (541), and the bottom of the buffer shaft (541) abuts against the surface of the elastic screen plate.

4. The industrial closed hanging painting equipment according to claim 3 is characterized by: The bottom of the connecting ball (54) is fixedly connected to a rubber shaft (56), the rubber shaft (56) penetrates the elastic screen plate and is fixedly connected to a suspension ball at the bottom, the bottom of the limiting basin (5) is fixedly connected to a spherical screen plate (51), the inner wall of the spherical screen plate (51) abuts against the bottom of the suspension ball, a mounting ring (55) is fixedly connected to the side wall of the rubber shaft (56), an elastic sheet (551) is fixedly connected to the side wall of the mounting ring (55), the elastic sheet (551) is arranged in an inclined manner and abuts against the inner wall of the spherical screen plate (51), and a plurality of metal balls are fixedly connected to the side wall of the elastic sheet (551).

5. The industrial closed hanging painting equipment according to claim 1 is characterized by: The auxiliary limiting mechanism (3) comprises a plurality of L-shaped plates (31), each of the L-shaped plates (31) being fixedly connected to a side wall of a fixed plate (41), a rotating plate (32) being rotatably provided at the bottom of the L-shaped plate (31), a mounting plate (33) being fixedly connected to the top of the rotating plate (32), an annular groove being fixedly provided on the mounting plate (33), and an annular sieve plate (331) being fixedly connected inside the annular groove; A plurality of support shafts (35) are fixedly connected to the side wall of the mounting plate (33), a limit ring (36) is fixedly connected between the support shafts (35), a plurality of U-shaped plates are fixedly connected to the limit ring (36), and a threaded rod (34) is rotatably provided inside the U-shaped plate, and a reset plate (37) is fixedly connected to one end of the threaded rod (34).

6. The industrial closed hanging painting equipment according to claim 5 is characterized by: A plurality of U-shaped shafts (371) are fixedly connected to the inner wall of one side of the reset plate (37); a rectangular tube (38) is provided on one side of the U-shaped shaft (371); the rectangular tube (38) is fixedly connected to the inner wall of the other side of the reset plate (37); the U-shaped shaft (371) is inserted into the rectangular tube (38); a plurality of rubber balls are fixedly connected to the U-shaped shaft (371), and the rubber balls abut against the inner wall of the rectangular tube (38); an expansion shaft (381) is provided at one end of the rectangular tube (38); the expansion shaft (381) is fixedly connected to the reset plate (37); and a friction pad is fixedly connected to the surface of the expansion shaft (381).

7. The industrial closed hanging painting equipment according to claim 1 is characterized by: A plurality of telescopic rods (44) are fixedly connected to the bottom of the fixed plate (41); the positions of the telescopic rods (44) correspond to the mounting plate (33); a clamping ring (45) is fixedly connected to the outer wall of the bottom of the telescopic rod (44); and a transmission shaft (461) is fixedly connected to each of the clamping rings (45); A material storage cavity (42) is installed at the bottom of the fixed plate (41), a hollow tube (43) is fixedly connected to the bottom of the material storage cavity (42), the hollow tube (43) is located between the telescopic rods (44), a movable tube (47) is movably inserted inside the hollow tube (43), a material discharge groove (471) is provided on the side wall of the movable tube (47), an annular groove is provided on the movable tube (47), and a transmission ring (46) is movably provided inside the annular groove, the transmission ring (46) has an "L"-shaped cross section, a compression spring is fixedly connected between the bottom of the inner wall of the transmission ring (46) and the annular groove, a plurality of sponge blocks are fixedly connected to the bottom of the inner wall of the transmission ring (46), and the sponge blocks abut against the surface of the material discharge groove (471) during the movement of the transmission ring (46).

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