A PU coating spraying device

Abstract

This utility model discloses a PU coating spraying device, belonging to the technical field of spraying devices. This PU coating spraying device includes a workbench assembly, a spraying assembly, and a clamping assembly. The spraying assembly is positioned above the workbench assembly, and the clamping assembly is positioned outside the workbench assembly. The spraying assembly is used for double-sided spraying of the object to be sprayed, and the clamping assembly is used to fix the object to be sprayed. The spraying assembly includes a connecting frame, with grooves formed inside the top and bottom ends of the connecting frame. Reciprocating screws are rotatably connected inside each of the two grooves, and sliding blocks are threaded onto the outside of each of the two reciprocating screws. The outer walls of the two sliding blocks slide against the inner walls of the two grooves. Spray nozzles are connected to opposite sides of the two sliding blocks. Micro pumps are mounted on one side of the outer walls of each of the two sliding blocks, and hoses are connected to the outlets of the two micro pumps. The ends of the two hoses furthest from the spray nozzles are connected to the two spray nozzles respectively.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically a PU coating spraying device. Background Technology

[0002] PU coating is a general term for all polyurethane coatings, composed of a base agent, curing agent, and thinner. It possesses excellent adhesion, protection, and decorative properties. PU coatings are commonly used for surface treatment of furniture and flooring, providing both protection and aesthetic appeal. Their durability and abrasion resistance make them an ideal choice for furniture and flooring. In furniture manufacturing, spraying equipment is typically used to apply the coating to the surface of wood panels.

[0003] Based on the above, the inventors have discovered the following problems: the current PU coating spraying device is not convenient to spray both sides of the wood board at the same time. It can only spray one side of the wood board. After the spraying is completed, the operator has to flip the wood board over and spray the other side again, which is inconvenient and reduces the spraying efficiency.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a PU coating spraying device in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a PU coating spraying device to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A PU coating spraying device includes a workbench assembly, a spraying assembly, and a clamping assembly. The spraying assembly is disposed above the workbench assembly, and the clamping assembly is disposed outside the workbench assembly. The spraying assembly is used to spray the object to be sprayed on both sides, and the clamping assembly is used to fix the object to be sprayed. The spraying assembly includes a connecting frame, and the top and bottom ends of the connecting frame are provided with sliding grooves. The interior of each of the two sliding grooves is rotatably connected to a reciprocating screw, and the exterior of each of the two reciprocating screws is threadedly connected to a slide block. The outer walls of the two slide blocks are respectively slidably engaged with the inner walls of the two sliding grooves, and a spray head is connected to the opposite side of each of the two slide blocks.

[0008] Furthermore, a miniature pump is connected to one side of the outer wall of each of the two slides, and a hose is connected to the outlet of each of the two miniature pumps. The two hoses are respectively connected to the two nozzles at the end away from the nozzle.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by setting up a micro pump, the storage tank containing PU coating is connected to the inlet of the micro pump through an external pipeline. When the micro pump is started, it pumps the PU coating stored in the storage tank into the nozzle through a hose, and then sprays it out from the nozzle to spray the wood board on both sides.

[0010] Furthermore, a cavity is provided on one side of the connecting frame, and one end of each of the two reciprocating lead screws extends through the cavity into the interior and is connected to the inner wall of the cavity by a bearing. A synchronous pulley is sleeved on the outside of one end of each of the two reciprocating lead screws, and a synchronous belt is wound between the pair of synchronous pulleys.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the synchronous pulley and the synchronous belt, when one reciprocating screw rotates, the other reciprocating screw will also rotate through the transmission of the synchronous pulley and the synchronous belt, so as to achieve synchronous rotation of the two reciprocating screws, enabling the two spray heads to simultaneously spray the object to be sprayed on both sides, thereby improving the spraying quality.

[0012] Furthermore, a first servo motor is mounted on the front of the connecting frame, and the output end of the first servo motor is connected to one of the reciprocating lead screws.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting a first servo motor, when the first servo motor is working, it drives one of the reciprocating screws to rotate.

[0014] Furthermore, the workbench assembly includes a base, an electric slide rail connected to the front of the base, an electric slider slidably connected to the outside of the electric slide rail, a connecting strip installed at the top of the electric slider, and one side of the connecting strip being fixedly connected to the front of the connecting frame.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of electric slide rail and electric slider, when the electric slide rail and electric slider are working, the connecting frame can be moved horizontally, thereby driving the spraying assembly to move in the horizontal direction, expanding the working range of the spraying assembly, and spraying different parts of the object to be sprayed.

[0016] Furthermore, the clamping assembly includes two vertical plates, which are respectively installed on the outer sides of the base. Hydraulic rods are installed on the opposite sides of the two vertical plates. The movable ends of the two hydraulic rods pass through the vertical plates and are connected to pressure seats. The bottom end of the pressure seat is in contact with the top end of the base.

[0017] Furthermore, each of the two pressure seats has a circular hole on its opposite side, and an extrusion plate is connected inside each of the two circular holes.

[0018] The beneficial effect of adopting the above-mentioned further solution is that by setting two hydraulic rods, when the two hydraulic rods are activated, their movable ends push the two pressure seats to move towards the center and are clamped, squeezed and fixed by the cooperation of the pressure seats and the extrusion plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This PU coating spraying device, by setting a connecting frame, has nozzles at both the top and bottom of the connecting frame. A micro pump is installed, and a storage tank containing PU coating is connected to the inlet of the micro pump via an external pipe. When the micro pump is started, it pumps the PU coating stored in the storage tank into the nozzle through a hose, and then sprays it out from the nozzle. When the first servo motor is working, it drives one of the reciprocating screws to rotate. Through the cooperation of a synchronous pulley and a synchronous belt, when one reciprocating screw rotates, the other reciprocating screw also rotates through the transmission of the synchronous pulley and synchronous belt, achieving synchronous rotation of the two reciprocating screws. This allows the two nozzles to simultaneously spray both sides of the object to be coated, improving the coating quality. Through the cooperation of an electric slide rail and an electric slider, when the electric slide rail and electric slider are working, the connecting frame moves horizontally, thereby driving the spraying assembly to move horizontally, expanding the working range of the spraying assembly and spraying different parts of the object to be coated. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of a PU coating spraying device provided by this utility model;

[0021] Figure 2 A three-dimensional structural schematic diagram of the spraying component of a PU coating spraying device provided by this utility model;

[0022] Figure 3 A partial side cross-sectional view of the connecting frame of a PU coating spraying device provided by this utility model;

[0023] Figure 4 An exploded three-dimensional structural diagram of the clamping component of a PU coating spraying device provided by this utility model;

[0024] Figure 5 A front cross-sectional view of the vertical plate of a PU coating spraying device provided by this utility model.

[0025] In the diagram: 1. Workbench assembly; 11. Base; 12. Electric slide rail; 13. Electric slider; 14. Connecting strip; 2. Spraying assembly; 21. Connecting frame; 22. Slide groove; 23. Reciprocating screw; 24. Slide seat; 25. Micro pump; 26. Spray nozzle; 27. Hose; 28. Synchronous pulley; 29. ​​Synchronous belt; 210. First servo motor; 3. Clamping assembly; 31. Vertical plate; 32. Hydraulic rod; 33. Pressure seat; 34. Round hole; 35. Extrusion plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution: a PU coating spraying device, including a workbench assembly 1, a spraying assembly 2, and a clamping assembly 3. The spraying assembly 2 is disposed above the workbench assembly 1, and the clamping assembly 3 is disposed outside the workbench assembly 1. The spraying assembly 2 is used to spray the object to be sprayed on both sides, and the clamping assembly 3 is used to fix the object to be sprayed. The spraying assembly 2 includes a connecting frame 21. The top and bottom ends of the connecting frame 21 are provided with sliding grooves 22. The interior of each sliding groove 22 is rotatably connected to a reciprocating screw 23. The exterior of each reciprocating screw 23 is threadedly connected to a slide seat 24. The outer walls of the two slide seats 24 slide in cooperation with the inner walls of the two sliding grooves 22 respectively. The opposite sides of each slide seat 24 are connected to a nozzle 26. By setting the connecting frame 21 and providing nozzles 26 at both the top and bottom ends of the connecting frame 21, it is possible to simultaneously spray PU coating on the top and bottom surfaces of the wood board, thereby improving the spraying efficiency.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5This utility model provides a technical solution: A micro pump 25 is connected to one side of the outer wall of each of the two slide blocks 24. The outlets of the two micro pumps 25 are connected to hoses 27. The ends of the two hoses 27 furthest from the nozzles 26 are respectively connected to the two nozzles 26. A cavity is formed on one side of the connecting frame 21. One end of each of the two reciprocating screws 23 extends through the cavity and is connected to the inner wall of the cavity via bearings. A synchronous pulley 28 is fitted onto the outside of one end of each of the two reciprocating screws 23. A synchronous belt 29 is wound between the pair of synchronous pulleys 28. A first servo motor 210 is mounted on the front of the connecting frame 21. The output end of the first servo motor 210 is connected to one of the reciprocating screws 23 via a transmission connection. A micro pump 25 is installed, and a storage tank containing PU coating is connected to the inlet of the micro pump 25 through an external pipe. When the micro pump 25 is started, it pumps the PU coating stored in the storage tank into the nozzle 26 through the hose 27, and then sprays it out from the nozzle 26. When the first servo motor 210 is working, it drives one of the reciprocating screws 23 to rotate. Through the cooperation of the synchronous pulley 28 and the synchronous belt 29, when one reciprocating screw 23 rotates, the other reciprocating screw 23 will also rotate through the transmission of the synchronous pulley 28 and the synchronous belt 29, so that the two reciprocating screws 23 rotate synchronously, allowing the two nozzles 26 to spray the object to be sprayed on both sides at the same time, thereby improving the spraying quality.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5This utility model provides a technical solution: the workbench assembly 1 includes a base 11, an electric slide rail 12 connected to the front of the base 11, an electric slider 13 slidably connected to the outside of the electric slide rail 12, a connecting strip 14 installed at the top of the electric slider 13, one side of the connecting strip 14 being fixedly connected to the front of the connecting frame 21, and a clamping assembly 3 including two vertical plates 31, the two vertical plates 31 being respectively installed on the outer sides of the base 11, and hydraulic rods 32 being installed on the opposite sides of the two vertical plates 31, the movable ends of the two hydraulic rods 32 passing through the vertical plates 31 and being connected to pressure seats 33, the bottom end of the pressure seats 33 being in contact with the top end of the base 11, and the two... Each pressure seat 33 has a circular hole 34 on its opposite side. Each circular hole 34 is connected to an extrusion plate 35. Two hydraulic rods 32 are provided. When the two hydraulic rods 32 are activated, their movable ends push the two pressure seats 33 to move towards the center. Under the cooperation of the pressure seats 33 and the extrusion plates 35, the wooden board is clamped, extruded and fixed. Through the cooperation of the electric slide rail 12 and the electric slider 13, when the electric slide rail 12 and the electric slider 13 are working, the connecting frame 21 is moved horizontally, thereby driving the spraying assembly 2 to move in the horizontal direction, expanding the working range of the spraying assembly 2, and spraying different parts of the object to be sprayed.

[0032] Specifically, the working principle of this PU coating spraying device is as follows: During use, two hydraulic rods 32 are activated, causing their movable ends to push two pressure seats 33 towards the center. Under the combined action of the pressure seats 33 and the extrusion plate 35, the wood board is clamped, extruded, and fixed. An external pipe connects a storage tank containing PU coating to the inlet of a micro pump 25. When the micro pump 25 is activated, it pumps the PU coating stored in the storage tank through a hose 27 into the nozzle 26, which then sprays it out. Since the two nozzles 26 are respectively located at the top and bottom of the connecting frame 21, this allows for simultaneous PU coating of the top and bottom surfaces of the wood board, improving spray efficiency. To improve coating efficiency, when the first servo motor 210 is working, it drives one of the reciprocating screws 23 to rotate. Through the cooperation of the synchronous pulley 28 and the synchronous belt 29, when one reciprocating screw 23 rotates, the other reciprocating screw 23 will also rotate through the transmission of the synchronous pulley 28 and the synchronous belt 29, realizing the synchronous rotation of the two reciprocating screws 23. This allows the two spray heads 26 to simultaneously perform double-sided spraying on the object to be sprayed, improving the spraying quality. When the electric slide rail 12 and the electric slider 13 are working, the connecting frame 21 moves horizontally, thereby driving the spraying assembly 2 to move in the horizontal direction, expanding the working range of the spraying assembly 2, and spraying different parts of the object to be sprayed.

Claims

1. A PU coating spraying device, characterized in that, The assembly includes a workbench assembly (1), a spraying assembly (2), and a clamping assembly (3). The spraying assembly (2) is located above the workbench assembly (1), and the clamping assembly (3) is located outside the workbench assembly (1). The spraying assembly (2) is used to spray the object on both sides, and the clamping assembly (3) is used to fix the object to be sprayed. The spraying assembly (2) includes a connecting frame (21). The top and bottom ends of the connecting frame (21) are provided with sliding grooves (22). The interior of the two sliding grooves (22) is rotatably connected to a reciprocating screw (23). The exterior of the two reciprocating screws (23) is threadedly connected to a slide block (24). The outer walls of the two slide blocks (24) are respectively slidably engaged with the inner walls of the two sliding grooves (22). The opposite sides of the two slide blocks (24) are connected to a nozzle (26).

2. The PU coating spraying device according to claim 1, characterized in that, Each of the two slides (24) has a micro pump (25) connected to one side of its outer wall. The outlets of the two micro pumps (25) are connected to hoses (27). The ends of the two hoses (27) that are away from the nozzles (26) are respectively connected to the two nozzles (26).

3. The PU coating spraying device according to claim 1, characterized in that, The connecting frame (21) has a cavity on one side inside. One end of each of the two reciprocating screws (23) extends through the cavity and is connected to the inner wall of the cavity by a bearing. One end of each of the two reciprocating screws (23) is fitted with a synchronous pulley (28), and a synchronous belt (29) is wound between the pair of synchronous pulleys (28).

4. The PU coating spraying device according to claim 3, characterized in that, The front of the connecting frame (21) is equipped with a first servo motor (210), and the output end of the first servo motor (210) is connected to one of the reciprocating lead screws (23) for transmission.

5. A PU coating spraying device according to claim 1, characterized in that, The workbench assembly (1) includes a base (11), an electric slide rail (12) is connected to the front of the base (11), an electric slider (13) is slidably connected to the outside of the electric slide rail (12), a connecting strip (14) is installed on the top of the electric slider (13), and one side of the connecting strip (14) is fixedly connected to the front of the connecting frame (21).

6. The PU coating spraying device according to claim 1, characterized in that, The clamping assembly (3) includes two vertical plates (31), which are respectively installed on the outer sides of the base (11). Hydraulic rods (32) are installed on the opposite sides of the two vertical plates (31). The movable ends of the two hydraulic rods (32) pass through the vertical plates (31) and are connected to pressure seats (33). The bottom end of the pressure seats (33) is in contact with the top end of the base (11).

7. A PU coating spraying device according to claim 6, characterized in that, Both of the two pressure seats (33) have a circular hole (34) on their opposite sides, and both of the circular holes (34) are connected to an extrusion plate (35).

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