Cooling equipment for powder coating production line

Abstract

The utility model discloses cooling equipment for a powder coating production line, relates to the technical field of powder coating cooling, and solves the technical problem that the powder coating is easy to cool unevenly in the conveying and cooling process. Comprising a cooling box and a feeding hopper installed at the top of the cooling box, heat exchange plates distributed in an up-down staggered mode are arranged in the cooling box, the heat exchange plates are of a hollow structure, the two ends of each heat exchange plate are of an arc-shaped structure, and shell covers corresponding to the heat exchange plates are symmetrically installed on the side wall of the cooling box in an embedded mode; a plurality of cross beams connected with the inner side wall of the shell cover are installed on the two sides of the heat exchange plate, belt wheels are rotationally installed at the positions, close to the two ends, of the shell cover, a belt is rotationally installed on the belt wheels, and a driving mechanism for driving the belt to operate is installed on the outer side of the cooling box. According to the powder coating conveying device, powder coating can be conveniently turned over and conveyed, uniform water cooling can be conducted on the powder coating in the conveying process, and therefore the cooling effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder coating cooling, in particular to cooling equipment for a powder coating production line. Background Art

[0002] Powder coating is a new type of solvent-free 100% solid powder coating. Its dispersion medium is not solvent and water, but air. Powder coating has the characteristics of no solvent pollution, 100% film formation, low energy consumption, and is harmless, high-efficiency, resource-saving and environmentally friendly.

[0003] A powder coating production line cooling device is disclosed in the Chinese patent authorization number CN112378150B. The water injection pipe and the return pipe penetrate the interior of the bracket, and the first shunt pipe and the second shunt pipe are connected by two sets of three-way interfaces. The two sets of shunt pipes and the damping roller are connected by the water inlet pipe and the water outlet pipe to realize the repeated circulation of cooling water between the damping roller and the cooling water tank, so as to achieve the effect of cooling from the inside of the machine. However, the technical solution still has the following defects:

[0004] 1. The powder coating needs to be extruded into sheets before it can be transported using the damping roller to achieve cooling. The powder coating that has not been extruded into sheets cannot be transported, which has certain limitations;

[0005] 2. The cooling effect of the paint in direct contact with the damping roller is greater, while the cooling effect of the part that is not in contact will be discounted, resulting in uneven cooling of the powder coating. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a cooling device for a powder coating production line, which solves the problem that uneven cooling of powder coatings is prone to occur during the process of conveying and cooling.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a cooling device for a powder coating production line is provided, comprising a cooling box and a feed hopper installed on the top of the cooling box, wherein heat exchange plates staggeredly distributed up and down are arranged in the cooling box, the heat exchange plates are hollow structures, and the two ends of the heat exchange plates are arranged in arc-shaped structures, shell covers corresponding to the heat exchange plates are symmetrically inlaid and installed on the side walls of the cooling box, a plurality of beams connected to the inner side walls of the shell covers are installed on both sides of the heat exchange plates, pulleys are rotatably installed at positions near the two ends of the shell covers, and belts are rotatably installed on the pulleys, a driving mechanism for driving the belt to run is installed on the outside of the cooling box, the belt portion extends to the outside of the shell covers and is sleeved on the heat exchange plates, pusher plates evenly distributed are fitted on the heat exchange plates, and the ends of the pusher plates are connected to the edges of the belts, and a first U-shaped tube and a second U-shaped tube that penetrate the shell covers are installed on the outer wall of the cooling box, the ends of the first U-shaped tube and the second U-shaped tube are connected to the heat exchange plates, and the first U-shaped tube and the second U-shaped tube are respectively connected to a cold water inlet pipe and a return pipe.

[0008] As a further technical solution of the utility model, the driving mechanism includes a first rotating rod and a second rotating rod respectively passing through the ends of the two heat exchange plates, and the first rotating rod and the second rotating rod are respectively coaxially connected to the pulleys in the two shell covers, a driving shell is installed on the outer wall of the cooling box, a motor for driving the second rotating rod is installed on the outer side of the driving shell, and a linkage assembly for driving the first rotating rod to rotate is installed in the driving shell.

[0009] As a further technical solution of the utility model, the linkage assembly includes a first gear mounted on the output shaft of the motor, a second gear meshing with the first gear is rotatably installed in the drive housing, sprockets are coaxially installed on the second gear and the first rotating rod, and a chain is installed between the two sprockets.

[0010] As a further technical solution of the utility model, a collecting hopper is installed between the inner walls near one end of the cooling box, and the bottom of the collecting hopper is connected to a feeding pipe. The feeding pipe runs through the cooling box, and a cylinder connected to the feeding pipe is installed at one end of the cooling box, and a fan is installed in the cylinder.

[0011] As a further technical solution of the utility model, a triangular prism-shaped material guide seat is installed on the top of the push plate.

[0012] As a further technical solution of the utility model, a matching dust filter is installed at one end of the cylinder away from the feeding pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the cold water inlet pipe is used to conveniently transport external cold water to the two staggered heat exchange plates through the first U-shaped tube, and the cold water is used to conveniently cool the powder coating falling on the heat exchange plate. The second U-shaped tube is convenient to guide the water after absorbing heat in the heat exchange plate through the return pipe. The guided water can be cooled by an external refrigerator to achieve circulating cooling.

[0015] 2. In the utility model, the driving mechanism not only facilitates the operation of the belts in the two shells, but also facilitates the synchronous reverse operation of the two belts. The running belts facilitate the pushing plate to move along the surface of the heat exchange plate, thereby pushing the powder coating to move along the heat exchange plate. After the upper heat exchange plate performs initial cooling on the powder coating, the coating is easily turned over when it falls to the lower heat exchange plate, which is conducive to uniform cooling of the powder coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a cooling device for a powder coating production line of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a cooling device for a powder coating production line of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the connection part between the heat exchange plate and the shell cover in a cooling device of a powder coating production line of the utility model;

[0019] Figure 4 This is a three-dimensional diagram of a heat exchange plate in a cooling device for a powder coating production line of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of a drive housing in a cooling device for a powder coating production line according to the utility model after being cut open;

[0021] Figure 6 for Figure 2 Enlarged view of part A.

[0022] In the figure: 1. cooling box; 2. feed hopper; 3. heat exchange plate; 4. shell; 5. crossbeam; 6. belt; 7. push plate; 8. first U-shaped tube; 9. second U-shaped tube; 10. cold water inlet pipe; 11. return pipe; 12. first rotating rod; 13. second rotating rod; 14. drive shell; 15. motor; 16. first gear; 17. second gear; 18. chain; 19. collecting hopper; 20. feeding pipe; 21. cylinder; 22. fan; 23. material guide seat; 24. dust filter. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-6 As shown, a cooling device for a powder coating production line comprises a cooling box 1 and a feed hopper 2 installed on the top of the cooling box 1. Heat exchange plates 3 are arranged in an upper and lower staggered manner in the cooling box 1. The heat exchange plates 3 are hollow structures, and both ends of the heat exchange plates 3 are arranged in an arc-shaped structure. Shell covers 4 corresponding to the heat exchange plates 3 are symmetrically inlaid and installed on the side walls of the cooling box 1. A plurality of beams 5 connected to the inner side walls of the shell covers 4 are installed on both sides of the heat exchange plates 3. Pulleys are rotatably installed at positions near both ends of the shell cover 4, and a belt 6 is rotatably installed on the pulley. A driving mechanism for driving the belt 6 is installed on the outer side of the cooling box 1.

[0025] The driving mechanism includes a first rotating rod 12 and a second rotating rod 13 respectively penetrating the ends of the two heat exchange plates 3. In order to ensure the sealing of the rotating connection, in this embodiment, the first rotating rod 12 and the second rotating rod 13 are both rotatably connected to the heat exchange plates 3 through sealed bearings. The first rotating rod 12 and the second rotating rod 13 are respectively coaxially connected to the pulleys in the two shell covers 4. A driving shell 14 is installed on the outer wall of the cooling box 1. A motor 15 driving the second rotating rod 13 is installed on the outer side of the driving shell 14, and a linkage component for driving the first rotating rod 12 to rotate is installed in the driving shell 14, so as to facilitate the linkage of the first rotating rod 12 and the second rotating rod 13 to rotate synchronously in the opposite direction.

[0026] The linkage assembly includes a first gear 16 mounted on the output shaft of the motor 15, a second gear 17 meshing with the first gear 16 is rotatably mounted in the drive housing 14, sprockets are coaxially mounted on the second gear 17 and the first rotating rod 12, and a chain 18 is installed between the two sprockets.

[0027] The belt 6 partially extends to the outside of the shell cover 4 and is mounted on the heat exchange plate 3. In order to reduce the friction between the belt 6 and the heat exchange plate 3, in this embodiment, the outer surface of the heat exchange plate 3 is mirror-finished, and evenly distributed pusher plates 7 are attached to the heat exchange plate 3. The ends of the pusher plates 7 are connected to the edges of the belt 6 to facilitate pushing the powder coating along the surface of the heat exchange plate 3 to realize the transportation of the powder coating. A triangular prism-shaped material guide seat 23 is installed on the top of the pusher plate 7 to prevent the fallen powder coating from accumulating on the top of the pusher plate 7.

[0028] The outer wall of the cooling box 1 is installed with a first U-shaped tube 8 and a second U-shaped tube 9 that penetrate the shell cover 4. The ends of the first U-shaped tube 8 and the second U-shaped tube 9 are connected to the heat exchange plate 3. In this embodiment, the first U-shaped tube 8 is respectively connected to the side walls of the two heat exchange plates 3 near the bottom, and the second U-shaped tube 9 is respectively connected to the side walls of the two heat exchange plates 3 near the top. The first U-shaped tube 8 and the second U-shaped tube 9 are respectively connected with a cold water inlet pipe 10 and a return pipe 11. The cold water inlet pipe 10 is used to facilitate the transportation of external cold water to the heat exchange plate 3 through the first U-shaped tube 8. The return pipe 11 is used to facilitate the discharge of water after heat exchange in the heat exchange plate 3. The discharged water can be cooled by an external refrigerator to achieve circulating cooling.

[0029] A collecting hopper 19 is installed between the inner walls near one end of the cooling box 1. In the present embodiment, the collecting hopper 19 corresponds to the discharge end of the lower heat exchange plate 3, so as to collect the powder coating transported through the lower heat exchange plate 3. A feeding pipe 20 is connected to the bottom of the collecting hopper 19. The feeding pipe 20 runs through the cooling box 1, and a cylinder 21 connected to the feeding pipe 20 is installed at one end of the cooling box 1. A fan 22 is installed in the cylinder 21. Starting the fan 22 facilitates blowing the powder coating to be discharged along the feeding pipe 20, which not only facilitates the discharge, but also can further cool the coating. A matching dust filter 24 is installed at the end of the cylinder 21 away from the feeding pipe 20.

[0030] The working principle of the utility model is as follows: the cold water is transported to the two heat exchange plates 3 by the cold water inlet pipe 10 and the first U-shaped pipe 8, the motor 15 is started to drive the second rotating rod 13 to rotate counterclockwise, and the first rotating rod 12 can be rotated clockwise by cooperating with the linkage component, so that the belt 6 on the upper heat exchange plate 3 runs clockwise, while the belt 6 on the lower heat exchange plate 3 runs counterclockwise, and the belt 6 drives the pushing plate 7 to move synchronously, thereby pushing the powder coating falling through the feed hopper 2, so that it moves along the upper heat exchange plate 3, and then falls to the lower heat exchange plate 3 to continue moving. When the powder coating contacts the heat exchange plate 3, it will be quickly cooled by the cold water inside it, and finally the powder coating is concentrated through the collecting hopper 19 and falls into the feeding pipe 20. Starting the fan 22 can blow the coating along the feeding pipe 20 for discharge and collection.

[0031] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A cooling device for a powder coating production line, comprising a cooling box (1) and a feed hopper (2) mounted on the top of the cooling box (1), characterized in that: The cooling box (1) is provided with heat exchange plates (3) which are staggered up and down, the heat exchange plates (3) are of a hollow structure, and the two ends of the heat exchange plates (3) are of an arc-shaped structure. Shell covers (4) corresponding to the heat exchange plates (3) are symmetrically inlaid and installed on the side walls of the cooling box (1). A plurality of crossbeams (5) connected to the inner side walls of the shell covers (4) are installed on both sides of the heat exchange plates (3). Pulleys are rotatably installed at positions near the two ends of the shell covers (4), and a belt (6) is rotatably installed on the belt pulleys. A driving mechanism for driving the belt (6) is installed on the outside of the cooling box (1). The belt (6) partly extends to the outside of the shell cover (4) and is sleeved on the heat exchange plate (3); the heat exchange plate (3) is fitted with evenly distributed push plates (7); the ends of the push plates (7) are connected to the edges of the belt (6); the outer wall of the cooling box (1) is provided with a first U-shaped tube (8) and a second U-shaped tube (9) penetrating the shell cover (4); the ends of the first U-shaped tube (8) and the second U-shaped tube (9) are connected to the heat exchange plate (3); and the first U-shaped tube (8) and the second U-shaped tube (9) are respectively connected to a cold water inlet pipe (10) and a return pipe (11).

2. A powder coating production line cooling device according to claim 1, characterized in that: The driving mechanism comprises a first rotating rod (12) and a second rotating rod (13) respectively penetrating the ends of the two heat exchange plates (3), and the first rotating rod (12) and the second rotating rod (13) are respectively coaxially connected to pulleys in the two shell covers (4), a driving shell (14) is installed on the outer wall of the cooling box (1), a motor (15) for driving the second rotating rod (13) is installed on the outer side of the driving shell (14), and a linkage component for driving the first rotating rod (12) to rotate is installed in the driving shell (14).

3. A powder coating production line cooling device according to claim 2, characterized in that: The linkage assembly comprises a first gear (16) sleeved on the output shaft of the motor (15); a second gear (17) meshing with the first gear (16) is rotatably mounted in the drive housing (14); sprockets are coaxially mounted on the second gear (17) and the first rotating rod (12); and a chain (18) is mounted between the two sprockets.

4. A powder coating production line cooling device according to claim 1, characterized in that: A collecting hopper (19) is installed between the inner walls near one end of the cooling box (1), and the bottom of the collecting hopper (19) is connected to a feeding pipe (20). The feeding pipe (20) runs through the cooling box (1), and a cylinder (21) connected to the feeding pipe (20) is installed at one end of the cooling box (1), and a fan (22) is installed in the cylinder (21).

5. The cooling equipment for a powder coating production line according to claim 1, characterized in that: A triangular prism-shaped material guide seat (23) is installed on the top of the push plate (7).

6. A powder coating production line cooling device according to claim 4, characterized in that: A matching dust filter (24) is installed at one end of the cylinder (21) away from the feeding pipe (20).

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