A paint spraying device for bathroom cabinet processing

Abstract

The utility model provides a kind of bathroom cabinet processing's paint spraying device, including rack;Rack is provided with conveying belt along its length direction, conveying belt is used to convey bathroom cabinet board;On the conveying path of conveying belt, setting overturns clamping assembly and paint spraying assembly, overturns clamping assembly has for clamping and overturning to bathroom cabinet board, paint spraying assembly is used to carry out paint spraying processing to bathroom cabinet board;Overturns clamping assembly includes support beam fixed on rack;Two corresponding sides of support beam are respectively hinged and connected with clamping arm, clamping arm is provided with first connecting hole and second connecting hole, the first connecting hole of two clamping arms is non coaxial arrangement;Clamping arm can swing to make its end close to or away from bathroom cabinet board located on conveying path.The utility model in the overturns clamping assembly realizes the automatic clamping and overturning of workpiece, without manual intervention, realizes the continuous operation of double-sided spraying, greatly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bathroom cabinet processing, specifically a painting device for bathroom cabinet processing. Background Technology

[0002] In the traditional manufacturing process of panel products (especially bathroom cabinets, kitchen cabinets, and other furniture), painting is a crucial surface treatment step. Currently, the main methods for this step are as follows:

[0003] The first method is traditional manual spraying and manual flipping. In this method, workers use a spray gun to spray one side of the board. After the paint on that side is surface dry or cured, the board is manually flipped over to spray the other side. The drawbacks of this method are obvious. First, the production efficiency is low. The spraying and flipping processes rely entirely on manual labor, making continuous and streamlined operations impossible and severely restricting the overall production pace. Second, the quality consistency is poor. The thickness and uniformity of the paint film sprayed manually are difficult to guarantee. Furthermore, during manual handling and flipping, the wet paint surface is easily bumped, scratched, or contaminated by dust, resulting in a high product defect rate. Moreover, workers are exposed to an environment full of paint mist and volatile organic compounds for a long time, posing a serious threat to their health.

[0004] The second method is semi-automated spraying. To address some of the aforementioned issues, some semi-automated equipment has emerged in the industry. For example, reciprocating sprayers or robots are used to automatically spray one side of the coating, and then the panels are transported to the drying area via a conveyor line. However, the flipping of the panels and secondary loading usually still require manual assistance. While this method improves the quality and efficiency of single-sided spraying, it does not fundamentally solve the continuity problem of double-sided operations. The production process is divided into two independent single-sided spraying processes, which still suffer from problems such as cumbersome processes, large footprint, and susceptibility to damage during intermediate transfers. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a painting device that can realize automated continuous painting and non-destructive flipping of panel workpieces such as bathroom cabinet panels, so as to solve the problems of low production efficiency, unstable painting quality and easy damage to the paint surface during the flipping process in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A painting device for processing bathroom cabinets includes a frame; a conveyor belt along its length is provided on the frame for conveying bathroom cabinet panels; a flipping clamping assembly and a painting assembly are provided on the conveying path of the conveyor belt, the flipping clamping assembly is used to clamp and flip the bathroom cabinet panels, and the painting assembly is used to perform painting processing on the bathroom cabinet panels.

[0008] The flipping clamping assembly includes a support beam fixed on the frame; clamping arms are respectively hinged to two corresponding sides of the support beam, and the clamping arms are provided with a first connecting hole and a second connecting hole. The first connecting holes of the two clamping arms are not coaxially arranged; the clamping arms can swing so that their ends approach or move away from the bathroom cabinet panel located on the conveying path.

[0009] The support beam is also provided with a rotatable drive shaft, a crank is fixed on the drive shaft, a drive connecting rod is hinged to the crank, and the other end of the drive connecting rod is hinged to the second connecting hole; the clamping arm is provided with abutting claws that can move closer or further apart from each other.

[0010] Furthermore, as a preferred technical solution:

[0011] The painting assembly includes a painting robot arm and a slide table, wherein the painting robot arm can slide along the X-axis on the slide table.

[0012] The frame is also equipped with a filter assembly, which includes a filter cloth and an exhaust fan disposed within the frame.

[0013] The abutting claw is connected to a slidable rack, the clamping arm is provided with a rotatable drive gear, the rack meshes with the drive gear, and a buffer cylinder is provided between the abutting claws.

[0014] A non-adhesive contact pad is fixed on the contact surface of the abutment claw.

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

[0016] 1. High degree of automation and high production efficiency: This device integrates processes such as conveying, A-side painting, flipping, and B-side painting into one unit. It achieves automatic clamping and flipping of workpieces through the flipping clamping component, without the need for manual intervention, realizing continuous double-sided spraying operation and greatly improving production efficiency.

[0017] 2. Ingenious Structure, Smooth and Reliable Tilting: Utilizing a drive shaft, crank, and connecting rod to drive two non-coaxially hinged clamping arms, forming a highly efficient crank-connecting rod tilting mechanism. This mechanism operates smoothly and with precise trajectory, ensuring the bathroom cabinet panel's posture remains controllable during tilting, effectively preventing impact and slippage, and protecting the wet paint surface from damage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the movement of the flipping clamping assembly in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the abutment claw in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the paint spraying assembly in one embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Bathroom vanity panel;

[0025] 10. Rack;

[0026] 20. Conveyor belt;

[0027] 30. Flip-over clamping assembly; 31. Support beam; 32. Clamping arm; 321. First connecting hole; 322. Second connecting hole; 33. Abutting claw; 331. Rack; 332. Drive gear; 333. Buffer cylinder; 334. Contact pad; 34. Drive shaft; 341. Crank; 342. Drive connecting rod;

[0028] 40. Spray painting assembly; 41. Spray painting robotic arm; 42. Slide table;

[0029] 5. Exhaust fan. Detailed Implementation

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0031] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0032] Please see Figures 1 to 4 This utility model provides a painting device for bathroom cabinet processing, which realizes double-sided spraying of bathroom cabinet board 100 and other boards.

[0033] like Figure 1 As shown, the device includes a frame 10 as its base. A conveyor belt 20 is mounted on the frame 10 along its length for carrying and conveying the bathroom cabinet panel 100. Along the conveying path of the conveyor belt 20, a core flipping and clamping assembly 30 and a painting assembly 40 are arranged sequentially or side-by-side. To ensure a safe working environment, a filter assembly is also provided inside the cavity of the frame 10.

[0034] The painting assembly 40 is responsible for painting the bathroom cabinet panel 100. In this embodiment, it includes a multi-axis painting robot arm 41 mounted on a slide table 42. When flipping the bathroom cabinet panel, the painting robot arm 41 can avoid interference with the bathroom cabinet panel by moving its own position.

[0035] Figure 2 The process of achieving automatic workpiece flipping is demonstrated. It includes a support beam 31 located below the conveyor belt 20 and fixed to the frame 10. Two clamping arms 32 are hinged to two opposite sides of the support beam 31 via first connecting holes 321. Crucially, the first connecting holes 321 of these two clamping arms 32 are not coaxial, which provides the structural basis for the subsequent specific flipping trajectory.

[0036] To drive the movement of the clamping arms 32, a drive shaft 34 driven by a motor (not shown) is rotatably mounted on the support beam 31. A crank 341 is fixed on the drive shaft 34, and the crank 341 is hinged to a second connecting hole 322 on one of the clamping arms 32 via a drive connecting rod 342. When the drive shaft 34 rotates, the rotational motion is converted into a specific swinging motion of the clamping arms 32 through the transmission of the crank 341 and the drive connecting rod 342, thereby driving the bathroom cabinet panel 100 to complete a smooth flipping action.

[0037] Please see Figure 3 At the end of each clamping arm 32, there is a pair of movable abutment claws 33. These two abutment claws 33 are used to clamp the side of the bathroom cabinet panel 100. To achieve synchronous opening and closing, one abutment claw 33 is connected to a rack 331, and a rotatable drive gear 332 is correspondingly provided on the clamping arm 32. The rack 331 meshes with the drive gear 332. When the rack 331 is pushed, the rotation of the gear 332 drives the rack on the other abutment claw 33 to move in the opposite direction, achieving synchronous opening and closing. To prevent excessive clamping force from damaging the workpiece, a buffer cylinder 333 is also provided between the two abutment claws 33 to provide flexible cushioning and pressure. To protect the paint surface, the surface of the abutment claw 33 that contacts the workpiece is covered with a non-stick contact pad 334 made of materials such as polytetrafluoroethylene.

[0038] Inside the cavity below the frame 10, there is a filter assembly for collecting and filtering paint mist, which includes a replaceable filter cloth and an exhaust fan 5 for ventilation.

[0039] Workflow:

[0040] A-side painting: The bathroom cabinet panel 100 to be processed is placed at the entrance end of the conveyor belt 20 and enters the painting area with the conveyor belt 20. The painting assembly 40 is activated, and the painting robot arm 41 sprays the upper surface (A-side) of the panel.

[0041] Clamping and Flipping: After the bathroom cabinet panel 100 on side A has been sprayed, it continues to move forward until it reaches directly below the flipping clamping assembly 30 and is positioned by a sensor. The drive shaft 34 starts, causing one clamping arm 32 (e.g., the outer side) to swing clockwise by a certain angle (e.g., 110 degrees), lifting the bathroom cabinet panel. Meanwhile, the other clamping arm 32 (the inner side) swings counterclockwise by a certain angle (e.g., 70 degrees). When the clamping arms 32 on both sides are in their closest position, the abutment claws on both sides clamp the bathroom cabinet panel. Then, the outer clamping arm 32 releases its grip on the bathroom cabinet panel. Finally, the drive shaft 34 continues to rotate, driving the clamping arms 32 on both sides to move back to their initial swing angle, thus achieving a 180-degree flip of the bathroom cabinet panel, which is then smoothly placed back onto the conveyor belt 20.

[0042] B-side painting: After the bathroom cabinet panel 100 is flipped over, with its B-side facing upwards, the painting component 40 sprays paint its B-side.

[0043] Completed: The bathroom cabinet panel 100, which has completed double-sided spraying, is output from the end of the device and enters the next drying or unloading process.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A painting apparatus for processing bathroom cabinets, comprising a frame; a conveyor belt along its length is provided on the frame for conveying bathroom cabinet panels; characterized in that, A flipping clamping assembly and a painting assembly are provided on the conveyor belt's conveying path. The flipping clamping assembly is used to clamp and flip the bathroom cabinet panel, and the painting assembly is used to paint the bathroom cabinet panel. The flipping clamping assembly includes a support beam fixed on the frame; clamping arms are respectively hinged to two corresponding sides of the support beam, and the clamping arms are provided with a first connecting hole and a second connecting hole, and the first connecting holes of the two clamping arms are not coaxial. The clamping arm can swing to bring its end closer to or away from the bathroom cabinet panel located on the conveying path; The support beam is also provided with a drive shaft that is rotatably mounted. A crank is fixed on the drive shaft, and a drive connecting rod is hinged to the crank. The other end of the drive connecting rod is hinged to the second connecting hole. The clamping arms are equipped with abutting claws that can move closer to or further away from each other.

2. The painting device for bathroom cabinet processing according to claim 1, characterized in that, The painting assembly includes a painting robot arm and a slide table, wherein the painting robot arm can slide along the X-axis on the slide table.

3. The painting device for bathroom cabinet processing according to claim 1, characterized in that, The frame is also equipped with a filter assembly, which includes a filter cloth and an exhaust fan disposed within the frame.

4. The painting device for bathroom cabinet processing according to claim 1, characterized in that, The abutting claw is connected to a slidable rack, the clamping arm is provided with a rotatable drive gear, the rack meshes with the drive gear, and a buffer cylinder is provided between the abutting claws.

5. The painting device for processing bathroom cabinets according to claim 1, characterized in that, A non-adhesive contact pad is fixed on the contact surface of the abutment claw.

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