Roller coater capable of realizing relatively uniform painting

Abstract

The utility model relates to the field of surface coating equipment, in particular to a roller coater uniform in painting, which comprises a roller coater main body, the roller coater main body is provided with a conveyor belt, a coating groove, a strip roller and a strip motor, and the roller coater main body is slidably connected with a first sliding block and a second sliding block along the vertical direction. A transfer printing motor and a horizontal transfer printing roller are arranged on the first sliding block, a coating motor and a coating roller are arranged on the second sliding block, and the strip roller, the transfer roller and the coating roller are all arranged perpendicular to the workpiece conveying direction. A plurality of driving cylinders for driving the first sliding block and the second sliding block to move up and down are arranged on the roller coater main body. The roller coater has the effect of enabling the roller coater to dye workpieces uniformly.

Description

Technical Field

[0001] The present application relates to the field of surface coating equipment, and in particular to a roller coating machine with relatively uniform coloring. Background Art

[0002] A roller coater is a device that uses one or more rotating rollers to apply a certain amount of glue to a flat material, so that the glue can be leveled and arranged, so that the material can be subsequently passivated, anti-fingerprint coated or color-coated as needed; the common structure of existing roller coaters is a set of conveying devices for conveying flat materials and at least one set of glue coating rollers installed above the conveying device.

[0003] The invention patent with publication number CN110899048A discloses a roller coating machine, including a frame, a feeding unit, a coating plate unit and a dust removal roller. The coating plate unit and the dust removal roller are located above the feeding unit. The coating plate unit is slidably fitted on the frame through a lifting unit 1, and the dust removal roller is slidably fitted on the frame through a lifting unit 2.

[0004] When the roller coater detects that the surface of the workpiece is uneven, the driving part only drives the transfer roller to move upward so that the transfer roller does not open the protrusions on the workpiece surface. However, when the transfer roller moves upward, the distance between it and the coating roller becomes larger, so that the coating transferred from the coating roller to the transfer roller becomes less, which reduces the printing and dyeing effect of the transfer roller on the workpiece and makes the dyeing level uneven. Utility Model Content

[0005] In order to make the roller coater dye the workpiece more uniformly, the present application provides a roller coater that can dye the workpiece more uniformly.

[0006] The present application provides a roller coating machine with relatively uniform coloring, which adopts the following technical solution:

[0007] A roller coater with relatively uniform coloring comprises a roller coater main body, on which a conveyor belt, a paint trough, a material roller and a material motor are provided, a first sliding block and a second sliding block are vertically connected to the roller coater main body, a transfer motor and a horizontal transfer roller are provided on the first sliding block, a coating motor and a coating roller are provided on the second sliding block, the material roller, the transfer roller and the coating roller are all arranged perpendicularly to the workpiece conveying direction, and a plurality of driving cylinders for driving the first sliding block and the second sliding block to move up and down are provided on the roller coater main body.

[0008] By adopting the above technical solution, when encountering an uneven area on the surface of the workpiece, multiple driving cylinders drive the coating roller and the transfer roller to rise at the same time, so that the distance between the transfer roller and the coating roller changes less, and the amount of paint transferred from the coating roller to the transfer roller changes less, so that the amount of paint printed by the transfer roller on the workpiece on the belt roller is maintained within a stable range, and the roller coating machine's dyeing effect on the workpiece is more uniform.

[0009] Optionally, a connecting rod is provided at the upper end of the piston rod of the driving cylinder, and two ends of the connecting rod are respectively connected to the first sliding block and the second sliding block.

[0010] By adopting the above technical solution, the driving cylinder drives the connecting rod to move, and the connecting rod simultaneously drives the first sliding block and the second sliding block to move, and the first sliding block and the second sliding block respectively drive the transfer roller and the coating roller to move, so that one cylinder can drive the transfer roller and the coating roller to move at the same time, reducing the amount of equipment.

[0011] Optionally, the roller coater body is provided with an infrared transmitter facing the conveyor belt and an infrared receiver for receiving infrared signals sent by the infrared transmitter. The infrared transmitter and the infrared receiver are respectively located at both ends of the conveyor belt in the width direction. The infrared receiver is electrically connected to a controller and sends an electrical signal to the controller when no infrared signal is received. The controller is electrically connected to the driving cylinder and controls the driving cylinder to move the piston rod upward when the electrical signal is received.

[0012] By adopting the above technical solution, when the surface of the workpiece is raised, the infrared signal emitted by the infrared transmitter is blocked and cannot be received by the infrared receiver. When the infrared receiver does not receive the infrared signal, it sends an electrical signal to the controller. After receiving the electrical signal, the controller controls the drive cylinder to move the connecting rod upward, thereby reducing the occurrence of the transfer roller and the workpiece being stuck.

[0013] Optionally, the transmission shaft of the transfer motor is detachably connected to the transfer roller, and the transfer motor and the transfer roller are connected via a connecting piece.

[0014] When facing different workpieces, different transfer rollers are needed to achieve different dyeing effects. By adopting the above technical solution, the transfer roller is detachably connected to the transfer motor through a connecting piece, and the appropriate transfer roller can be disassembled and assembled according to different working conditions.

[0015] Optionally, the connecting member includes a connecting bolt, a connecting groove is opened on the central axis of the transfer roller, the transmission shaft of the transfer motor is inserted into the connecting groove, and the connecting bolt penetrates the central axis of the transfer roller radially along the transfer roller and is threadedly connected to the transmission shaft of the transfer motor.

[0016] By adopting the above technical solution, when installing the transfer roller, the transmission shaft of the transfer motor is inserted into the connecting groove of the transfer roller, and a connecting bolt is used to penetrate the central axis of the transfer roller along the axial direction of the transfer roller and is threadedly connected to the transmission shaft of the transfer motor, so that the transfer roller is connected and fixed to the transfer motor. This installation method is relatively simple to assemble and disassemble.

[0017] Optionally, a scraper is provided on the side wall of the coating tank, and the scraper is arranged toward the roller surface of the transfer roller.

[0018] When the transfer roller moves upward due to the unevenness of the workpiece, part of the paint on the transfer roller will not be printed on the workpiece, causing the transfer roller to carry more paint, resulting in a decrease in the printing and dyeing effect on the workpiece. By adopting the above technical solution, the scraper is used to scrape off the excess paint on the transfer roller, and the paint on the transfer roller is distributed more evenly, thereby improving the uniformity of dyeing the workpiece.

[0019] Optionally, a water receiving groove is provided on the outer side wall of the paint groove, and the water receiving groove is located directly below the scraper.

[0020] By adopting the above technical solution, the paint scraped off by the scraper is collected through the water receiving trough, thereby reducing pollution.

[0021] Optionally, a water baffle is provided at the upper end of the paint tank.

[0022] When the coating roller moves up and down, the paint in the paint tank is easily splashed out. By adopting the above technical solution, the water baffle plays a role in blocking the paint, thereby reducing the splashing of the paint in the paint tank.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the surface of the workpiece is uneven, the driving cylinder drives the coating roller and the transfer roller to rise at the same time, so that the distance between the transfer roller and the coating roller changes less, so that the amount of paint transferred from the coating roller to the transfer roller changes less, so that the amount of paint printed by the transfer roller on the workpiece on the belt roller is maintained within a stable range, so that the roller coating machine has a more uniform dyeing effect on the workpiece. ;

[0025] 2. The driving cylinder drives the connecting rod to move, and the connecting rod drives the first sliding block and the second sliding block to move at the same time. The first sliding block and the second sliding block drive the transfer roller and the coating roller to move respectively, so that one cylinder can drive the transfer roller and the coating roller to move at the same time, reducing the amount of equipment;

[0026] 3. The water baffle serves to block the paint and reduce the splashing of paint in the paint tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural schematic diagram of a roller coater with relatively uniform coloring according to an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of a roller coater with relatively uniform coloring according to an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of a driving cylinder, a connecting rod, a first sliding block and a second sliding block of a roller coating machine with relatively uniform coloring according to an embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of the connection method between the transfer roller and the transfer motor of a roller coater with relatively uniform coloring according to an embodiment of the present application.

[0031] Figure 5 It is a schematic structural diagram of a transfer roller of a roller coater with relatively uniform coloring according to an embodiment of the present application.

[0032] Explanation of the reference numerals: 1. roller coater body; 11. conveyor belt; 12. material roller; 13. material motor; 14. infrared transmitter; 15. infrared receiver; 16. controller; 2. transfer roller; 21. first sliding block; 22. connecting groove; 23. transfer motor; 3. coating roller; 31. second sliding block; 32. coating motor; 4. driving cylinder; 41. connecting rod; 5. coating tank; 51. scraper; 52. water baffle; 53. water tank; 6. connecting bolts. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a roller coating machine that can apply color more evenly. Figure 1 , Figure 2 as well as Figure 3 A roller coater with relatively uniform coloring includes a roller coater body 1, a conveyor belt 11 is installed on the roller coater body 1, a horizontal belt roller 12 is rotatably connected to the roller coater, one end of the belt roller 12 is connected to a belt motor 13 for driving the belt roller 12 to rotate, two first sliding blocks 21 and two second sliding blocks 31 are slidably connected to the roller coater body 1 in a vertical direction, a transfer motor 23 is installed on the first sliding block 21, the transfer motor 23 is connected to the transfer roller 2 through a connecting piece, a coating motor 32 is installed on the second sliding block 31, and a transmission shaft of the coating motor 32 is coaxially connected to a coating roller 3, and the coating roller 3 and the transfer roller 2 are both arranged parallel to the belt roller 12.

[0035] Reference Figure 1 , Figure 2 as well as Figure 3A vertically upward driving cylinder 4 is installed on the roller coating machine body 1, and a connecting rod 41 is fixedly connected to the upper end of the transmission shaft of the driving cylinder 4. The two ends of the connecting rod 41 in the length direction are respectively connected to the first sliding block 21 and the second sliding block 31, so that the driving cylinder 4 can simultaneously drive the first sliding block 21 and the second sliding block 31 to move. A paint tank 5 is installed on the roller coating machine body 1, and the lower end of the coating roller 3 extends into the paint tank 5 and contacts with the paint in the paint tank 5. The coating roller 3 transfers the paint in the paint tank 5 to the transfer roller 2, and the transfer roller 2 prints the paint on the workpiece brought by the belt roller 12.

[0036] Reference Figure 1 , Figure 2 as well as Figure 3 An infrared transmitter 14 and an infrared receiver 15 are installed on the roller coating machine body 1. The infrared transmitter 14 and the infrared receiver 15 are respectively located at the two ends of the conveyor belt 11 in the width direction and are arranged opposite to each other. The infrared receiver 15 is electrically connected to a controller 16. The controller 16 is electrically connected to the driving cylinder 4. When the surface protrusion of the workpiece blocks the infrared signal sent by the infrared transmitter 14, the infrared receiver 15 sends an electrical signal to the controller 16 when it cannot receive the infrared signal. After receiving the electrical signal, the controller 16 controls the driving cylinder 4 to move the connecting rod 41 upward. When the connecting rod 41 moves upward, it also drives the coating roller 3 and the transfer roller 2 to move upward, thereby reducing the situation where the transfer roller 2 and the workpiece are stuck.

[0037] Reference Figure 1 as well as Figure 2 A scraper 51 inclined upward is fixedly connected to the side wall of the paint tank 5. The scraper 51 is arranged toward the transfer roller 2 and is used to scrape off excess paint on the transfer roller 2. A water collecting trough 53 is installed on the outer wall of the paint tank 5. The water collecting trough 53 is located directly below the scraper 51. The paint scraped off by the scraper 51 is collected by the water collecting trough 53 to reduce pollution. An inclined water baffle 52 is fixedly connected to the upper end of the paint tank 5. The water baffle 52 serves to block splashing paint.

[0038] Reference Figure 1 , Figure 4 as well as Figure 5 The connecting part includes a connecting bolt 6, and a connecting groove 22 coaxial with the transfer roller 2 is opened at the end of the central axis of the transfer roller 2. The transmission shaft of the transfer motor 23 is coaxially inserted into the connecting groove 22, and the connecting bolt 6 passes through the central axis of the transfer roller 2 along the circumference of the transfer roller 2 and is threadedly connected with the transmission shaft of the transfer motor 23.

[0039] The implementation principle of a roller coating machine with relatively uniform coloring in the embodiment of the present application is as follows: the conveyor belt 11 conveys the workpiece to the belt roller 12, the belt roller 12 conveys the workpiece to the gap between the transfer roller 2 and the belt roller 12, the coating roller 3 moves the paint in the paint tank 5 to the transfer roller 2, and the transfer roller 2 prints the paint on the workpiece. When the surface of the workpiece is uneven and blocks the infrared signal sent by the infrared transmitter 14, the infrared receiver 15 sends an electrical signal to the controller 16 when it cannot receive the infrared signal, and the controller 16 sends an electrical signal to the controller 16 after receiving the electrical signal. The rear control drives the cylinder 4 to move the connecting rod 41 upward. When the connecting rod 41 moves upward, it also drives the coating roller 3 and the transfer roller 2 to move upward, thereby reducing the jamming between the transfer roller 2 and the workpiece. The transfer roller 2 and the coating roller 3 move upward at the same time, so that the distance between the transfer roller 2 and the coating roller 3 changes less, and the amount of paint transferred from the coating roller 3 to the transfer roller 2 changes less, so that the amount of paint printed by the transfer roller 2 on the workpiece on the belt roller 12 is maintained within a stable range, so that the roller coating machine has a more uniform dyeing effect on the workpiece.

[0040] When the transfer roller moves upward due to the unevenness of the workpiece, part of the paint on the transfer roller 2 will not be printed on the workpiece, so that the transfer roller 2 carries more paint, resulting in a decrease in the printing and dyeing effect on the workpiece. The scraper 51 is used to scrape off the excess paint on the transfer roller 2, so that the paint on the transfer roller 2 is more evenly distributed, thereby improving the uniformity of dyeing the workpiece.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roller coating machine with relatively uniform coloring, characterized in that: The invention comprises a roller coating machine body (1), wherein the roller coating machine body (1) is provided with a conveyor belt (11), a coating tank (5), a material roller (12) and a material motor (13), wherein the roller coating machine body (1) is provided with a first sliding block (21) and a second sliding block (31) which are slidably connected in a vertical direction, wherein the first sliding block (21) is provided with a transfer motor (23) and a horizontal transfer roller (2), and the second sliding block (31) is provided with a coating motor and a coating roller (3), wherein the material roller (12), the transfer roller and the coating roller (3) are all arranged perpendicular to the conveying direction of the workpiece, and wherein the roller coating machine body (1) is provided with a plurality of driving cylinders (4) for driving the first sliding block (21) and the second sliding block (31) to move up and down.

2. A roller coating machine with relatively uniform coloring according to claim 1, characterized in that: A connecting rod (41) is provided at the upper end of the piston rod of the driving cylinder (4), and two ends of the connecting rod (41) are respectively connected to the first sliding block (21) and the second sliding block (31).

3. A roller coating machine with relatively uniform coloring according to claim 2, characterized in that: The roller coating machine body (1) is provided with an infrared transmitter (14) facing the conveyor belt (11) and an infrared receiver (15) for receiving an infrared signal transmitted by the infrared transmitter (14). The infrared transmitter (14) and the infrared receiver (15) are respectively located at two ends of the width direction of the conveyor belt (11). The infrared receiver (15) is electrically connected to a controller (16) and transmits an electrical signal to the controller (16) when no infrared signal is received. The controller (16) is electrically connected to a driving cylinder (4) and controls the driving cylinder (4) to move a piston rod upward when the electrical signal is received.

4. A roller coating machine with relatively uniform coloring according to claim 1, characterized in that: The transmission shaft of the transfer motor (23) is detachably connected to the transfer roller (2), and the transfer motor (23) and the transfer roller (2) are connected via a connecting piece.

5. A roller coating machine with relatively uniform coloring according to claim 4, characterized in that: The connecting member comprises a connecting bolt (6), a connecting groove (22) is provided on the central axis of the transfer roller (2), a drive shaft of the transfer motor (23) is inserted into the connecting groove (22), and the connecting bolt (6) penetrates the central axis of the transfer roller (2) in the radial direction of the transfer roller and is threadedly connected to the drive shaft of the transfer motor (23).

6. A roller coating machine with relatively uniform coloring according to claim 1, characterized in that: A scraper (51) is provided on the side wall of the coating tank (5), and the scraper (51) is arranged toward the roller surface of the transfer roller (2).

7. A roller coating machine with relatively uniform coloring according to claim 6, characterized in that: A water receiving groove (53) is provided on the outer side wall of the paint groove (5), and the water receiving groove (53) is located directly below the scraper (51).

8. A roller coating machine with relatively uniform coloring according to claim 1, characterized in that: A water retaining plate (52) is provided at the upper end of the paint tank (5).

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