A plate surface hardening spraying device

Abstract

This utility model relates to the technical field of spraying devices, and discloses a surface hardening spraying device for sheet metal. It includes a frame, with a spraying component mounted on top of the frame. Conveyor belts are installed on both the front and rear sides of the frame's interior, and a tray is positioned between the two conveyor belts. The tray is fixedly connected to the bottom surface of the frame via support columns. Support rollers are rotatably connected to the upper surface of the tray. Side plates are installed on both the left and right sides of the tray. A pressure sensor is fixedly connected to the side of the side plate away from the tray, and a limit rod is fixedly connected to the side of the pressure sensor away from the side plate. In this utility model, through the cooperation of the side plates, pressure sensors, limit rods, connecting plates, moving plates, lead screws, and lifting components, the fit between the side plates and the sides of the sheet metal can be precisely adjusted, preventing paint droplets from diffusing to the sides, reducing paint adhesion to the sides, lowering subsequent trimming costs, and improving product appearance and precision.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a spraying equipment for hardening the surface of sheet metal. Background Technology

[0002] In order to improve the surface hardness of the board, maintain its optical properties, broaden its application range, improve its processing performance and extend its service life, a hardening coating is sprayed onto the surface of the board using a hardening spraying device before use, forming a uniform and continuous hardened coating to improve the surface hardness, wear resistance and corrosion resistance of the board.

[0003] Existing sheet metal surface hardening spraying equipment generally includes a support assembly, a feeding assembly, a spraying assembly, and a storage assembly. The support assembly supports the entire device, the feeding assembly is a conveyor belt, the spraying assembly generally includes a spray tank, a nozzle, and a related drive mechanism, and the storage assembly is a paint tank and its support frame, used to store the paint required for hardening spraying. After the sheet metal is placed on the conveyor belt and conveyed to the bottom of the spraying assembly, the spraying assembly can perform hardening spraying on the surface of the sheet metal. After the spraying is completed, the conveyor belt can convey the sheet metal to the subsequent processing equipment.

[0004] However, during the hardening spraying process, the edges of the board are prone to "rough edges," "sags," or "thick edges" due to paint accumulation. After hardening, the edges will appear raised and uneven, affecting subsequent assembly (such as uneven gaps when splicing with other parts) or the feel (such as the edges of furniture panels being rough to the touch). This leads to the need to wait for the paint to semi-cured before trimming in subsequent processing. The more paint adheres to the sides, the longer the trimming time is required, which in turn affects the processing efficiency of the board. Therefore, a board surface hardening spraying device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a board surface hardening spraying device, which aims to solve the problem that when hardening spraying the board surface, the sides are prone to paint accumulation, which requires a lot of time for additional edge trimming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plate surface hardening spraying device, comprising a frame, a spraying component disposed on the top of the frame, conveyor belts disposed on both the front and rear sides of the interior of the frame, a tray disposed between the two conveyor belts, the tray being fixedly connected to the bottom surface of the interior of the frame by a support column, a support roller being rotatably connected to the upper surface of the tray, side plates being disposed on both the left and right sides of the tray, a pressure sensor being fixedly connected to the side surface of the side plate away from the tray, a limit rod being fixedly connected to the side of the pressure sensor away from the side plate, through grooves being opened on both the left and right sides of the frame, a connecting plate being fixedly connected to the end of the limit rod away from the side plate through the through groove, a movable plate being disposed on the side of the connecting plate near the limit rod, a lead screw being rotatably connected to the side surface of the movable plate near the connecting plate, the end of the lead screw away from the movable plate penetrating the connecting plate, a handle being fixedly connected to the end of the lead screw away from the movable plate, and a lifting assembly being disposed below the movable plate.

[0007] As a further description of the above technical solution:

[0008] The end of the limiting rod away from the side plate passes through the movable plate, and the outer wall of the movable plate is in contact with the outer wall of the frame.

[0009] As a further description of the above technical solution:

[0010] The lower end of the side panel near the tray is chamfered.

[0011] As a further description of the above technical solution:

[0012] The lifting assembly includes a fixed plate, which is fixedly connected to the side surface of the movable plate near the connecting plate. A hydraulic cylinder is fixedly connected to the bottom surface of the fixed plate, and a support frame is fixedly connected to the bottom end of the hydraulic cylinder.

[0013] As a further description of the above technical solution:

[0014] The support frame is fixedly connected to the outer wall of the frame.

[0015] As a further description of the above technical solution:

[0016] A limiting plate is fixedly connected to the front of the side plate located on the right side of the tray. A groove is provided on the left side surface of the limiting plate, and a limiting roller is rotatably connected inside the groove. A telescopic rod is fixedly connected to the right side surface of the limiting plate.

[0017] As a further description of the above technical solution:

[0018] The right end of the telescopic rod is fixedly connected to the inner wall of the frame.

[0019] As a further description of the above technical solution:

[0020] The left end of the limiting roller shaft is on the same horizontal plane as the left side surface of the side plate located on the right side of the tray.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by cooperating with the side plate, pressure sensor, limit rod, connecting plate, moving plate, lead screw, handle and lifting assembly, the side plate can be precisely adjusted to fit the side of the board, blocking the diffusion of paint droplets to the side, reducing paint adhesion to the side, reducing subsequent trimming costs, and improving the appearance and precision of the product. At the same time, the position and height of the side plate can be quickly adjusted according to different specifications of board, improving the versatility of the production line.

[0023] 2. In this utility model, the combination of the limiting plate, groove, limiting roller and telescopic rod allows the subsequently placed board to be automatically aligned with the roller, improving the batch processing efficiency. The roller can rotate to follow the movement of the board to reduce frictional resistance, making the board feeding and movement smoother and adaptable to different specifications of boards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the plate surface hardening spraying device proposed in this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the front part of a plate surface hardening spraying device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the frame of a plate surface hardening spraying device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the moving plate of a plate surface hardening spraying device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the limiting plate of a plate surface hardening spraying device proposed in this utility model.

[0029] Legend:

[0030] 1. Frame; 2. Painted parts; 3. Conveyor belt; 4. Pallet; 5. Support rollers; 6. Side plate; 7. Pressure sensor; 8. Limiting rod; 9. Connecting plate; 10. Moving plate; 11. Lead screw; 12. Handle; 13. Lifting assembly; 131. Fixing plate; 132. Hydraulic cylinder; 133. Support frame; 14. Limiting plate; 15. Groove; 16. Limiting roller; 17. Telescopic rod; 18. Through groove. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2 This utility model provides an embodiment of a sheet metal surface hardening spraying device, including a frame 1, with a spraying component 2 arranged above the frame 1. The spraying component 2 includes a spray pipe, a nozzle, a paint tank, a mounting housing, a connecting pipe, and a pump. The mounting housing is fixedly connected to the top of the frame 1, the paint tank is fixedly connected to the top of the mounting housing, the spray pipe is located inside the mounting housing, the nozzle is fixedly connected to the bottom surface of the spray pipe, the spray pipe and the paint tank are connected through the connecting pipe, and the pump is fixedly connected to the outside of the connecting pipe. When the pump is started, the paint inside the paint tank is drawn into the spray pipe through the connecting pipe, and then sprayed onto the surface of the sheet metal located below it through the nozzle to complete the surface hardening spraying. The above-mentioned spraying component 2 is a prior art in this field and will not be described in detail here. Conveyor belts 3 are arranged on both the front and rear sides inside the frame 1, and a tray 4 is arranged between the two conveyor belts 3. The tray 4 is fixedly connected to the bottom surface inside the frame 1 through a support column, and a support roller 5 is rotatably connected to the upper surface of the tray 4.

[0033] Both the front and rear conveyor belts 3 can move the sheet material to the rear. The tray 4 is located directly below the sprayed part 2. After the sheet material is placed on the front conveyor belt 3, it can move to the rear tray 4. The support rollers 5 can support and limit the bottom of the sheet material and can rotate along with the sheet material during movement to reduce frictional resistance. The tray 4 and support rollers 5 can be hidden at the bottom of the sheet material, so that there is no need to set the conveyor belt 3 directly below the sprayed part 2, reducing the possibility of paint adhering to the conveyor belt 3 and affecting its service life.

[0034] Reference Figures 2-4Side plates 6 are provided on both the left and right sides of the pallet 4. The lower end of the surface of the side plate 6 closest to the pallet 4 is chamfered to reduce the contact area when the side plate 6 is attached to the material. A pressure sensor 7 is fixedly connected to the surface of the side plate 6 away from the pallet 4. The pressure sensor 7 is a small thin-film pressure sensor (such as FSR402). Its detection surface is attached to the outer surface of the side plate 6 with strong adhesive, and its back is fixed to the end of the limit rod 8 with bolts. The signal line of the pressure sensor 7 passes through the wire groove on the surface of the limit rod 8 and connects to the digital display instrument (such as X) on the outside of the frame 1. MT-102 (not shown directly in the diagram) displays the pressure value in real time. A limit rod 8 is fixedly connected to the side of the pressure sensor 7 away from the side plate 6. When the side plate 6 is pressed and moves towards the limit rod 8, the pressure sensor 7 can detect the compressive force on the side plate 6. Through slots 18 are provided on both the left and right surfaces of the frame 1. A connecting plate 9 is fixedly connected to the end of the limit rod 8 away from the side plate 6 through the through slot 18. The through slot 18 avoids obstructing the up-and-down movement of the limit rod 8. When the connecting plate 9 moves, it can drive the side plate 6 to move synchronously through the limit rod 8. There are two limiting rods 8, both of which are fixedly connected to the connecting plate 9. A movable plate 10 is provided on the side of the connecting plate 9 near the limiting rods 8. The end of the limiting rod 8 away from the side plate 6 passes through the movable plate 10. The outer wall of the movable plate 10 fits against the outer wall of the frame 1. The height of the movable plate 10 is greater than the height of the through groove 18. The movable plate 10 can shield and protect the through groove 18 to prevent paint from leaking from the through groove 18 during the spraying process. The movable plate 10 can guide and limit the movement of the limiting rods 8, so that the limiting rods 8 can only move in a straight line in the left and right directions. The movable plate 10 is rotatably connected to a lead screw 11 on the side surface near the connecting plate 9. The lead screw 11 has a trapezoidal thread and a length of 15-20cm. One end of the lead screw 11 is rotatably connected to the movable plate 10 through a thrust ball bearing (model 51105). The end of the lead screw 11 away from the movable plate 10 passes through the connecting plate 9. The lead screw 11 and the connecting plate 9 are threaded together. When the lead screw 11 rotates, it can drive the connecting plate 9 to move synchronously. The end of the lead screw 11 away from the movable plate 10 is fixedly connected to a handle 12. The operator can drive the lead screw 11 to rotate quickly through the handle 12.

[0035] A lifting assembly 13 is provided below the movable plate 10. The lifting assembly 13 includes a fixed plate 131, which is fixedly connected to the side surface of the movable plate 10 near the connecting plate 9. A hydraulic cylinder 132 (a single piston rod hydraulic cylinder, such as MOB32×100) is fixedly connected to the bottom surface of the fixed plate 131. A support frame 133 is fixedly connected to the bottom end of the hydraulic cylinder 132. The support frame 133 is fixedly connected to the outer wall of the frame 1. When the hydraulic cylinder 132 is started, it can drive the movable plate 10 to move linearly up and down through the fixed plate 131, thereby adjusting the height of the side plate 6 so that the upper surface of the side plate 6 can be kept at the same level as the upper surface of the plates of different thicknesses.

[0036] When the operator rotates the screw 11 by the handle 12, the connecting plate 9 can move back and forth under the limit of the limiting rod 8. In turn, the side plate 6 can move synchronously through the limiting rod 8. After the plate moves directly below the sprayed part 2, the handle 12 can be turned to move the side plate 6 to the side of the plate, so that the side plate 6 can be attached to the surface of the plate. The pressure sensor 7 can detect the pressure when the side plate 6 is attached to the plate. When the pressure generated after attachment does not affect the movement of the plate (this value can be determined by pre-experiment based on the weight of the plate and friction test), the operator can stop turning the handle 12. At this time, the upper surface of the side plate 6 can be kept at the same level as the upper surface of the plate, so that the side plate 6 can be attached to and shielded from the side of the plate, blocking the diffusion of paint droplets to the side of the plate, reducing side adhesion from the source, and reducing the amount of subsequent trimming work.

[0037] Reference Figure 2 and Figure 5A limiting plate 14 is fixedly connected to the front of the side plate 6 located on the right side of the pallet 4. When the right side plate 6 moves, the limiting plate 14 moves synchronously. A groove 15 is provided on the left side surface of the limiting plate 14. A limiting roller 16 is rotatably connected inside the groove 15. The limiting roller 16 is made of stainless steel (304), with a diameter of 20-30mm and a length consistent with the height of the side plate 6 (e.g., 80mm). Its rotating shaft is fixed in the groove 15 by a bearing seat, and both ends of the shaft are clearance-fitted with the side wall of the groove (clearance 0.1-0.2mm). The flatness error between the left end of the limiting roller 16 and the left side surface of the side plate 6 is ≤0.5mm (ensuring through tooling during processing). The left end of the limiting roller 16 and the left side surface of the side plate 6 located on the right side of the pallet 4 are on the same level. A telescopic rod 17 is fixedly connected to the right side surface of the limiting plate 14. The telescopic rod 17 is a two-stage sleeve structure. The right end of the telescopic rod 17 is fixedly connected to the inner wall of the frame 1. The telescopic rod 17 can guide and limit the movement of the front end of the limiting plate 14, thereby keeping it stable and preventing deviation. When performing surface hardening spraying on the same batch of boards of the same specifications, after adjusting the spacing between the boards on the left and right sides, when placing the subsequent boards, the right side surface of the board can be placed against the limiting roller shaft 16, so that the board can be aligned with the space between the side plates 6 on both sides, thereby facilitating the side plates 6 to cover the sides of the board. At the same time, the limiting roller shaft 16 can rotate with the movement of the board, which can reduce the friction of the board during the movement.

[0038] Working principle: The PC sheet is placed on the front conveyor belt 3 of the frame 1. The conveyor belt 3 starts and moves the sheet backward. The sheet enters the area of ​​the tray 4 directly below the sprayed part 2 via the front conveyor belt 3. The support rollers 5 on the tray 4 rotate with the sheet, assisting the sheet to move smoothly and providing support and limit. Then, the hydraulic cylinder 132 is activated, and the lifting component 13 drives the moving plate 10 to rise and fall, so that the upper surface of the side plate 6 is flush with the current sheet thickness. Then, the screw 11 is turned by the handle 12, which drives the connecting plate 9 and the limit rod 8 to move, thereby adjusting the distance between the side plate 6 and the side of the sheet. During the adjustment process, the pressure sensor 7 monitors the extrusion pressure in real time. When the pressure reaches the threshold that does not affect the movement of the sheet, the adjustment stops.

[0039] Subsequently, the spraying component 2 can be activated to perform hardening spraying on the surface of the sheet material below it. During the spraying process, the side plate 6 can fit against the side of the sheet material to block the lateral diffusion of paint droplets and prevent side adhesion. When placing sheet materials of the same specifications, its right side is pressed against the limiting roller 16 to achieve automatic centering and ensure that the distance between it and the two side plates 6 is consistent. At the same time, the limiting roller 16 can rotate along with the sheet material as it moves, which can reduce the frictional resistance during the movement. After the spraying is completed, the paint adhering to the upper surface of the side plate 6 can be manually scraped off by a scraper or by a scraper driven by a drive component above the side plate 6 to avoid affecting subsequent processing. Existing processing methods in this field will not be described in detail here.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface hardening spraying device for sheet metal, comprising a frame (1), characterized in that: A spraying component (2) is provided above the frame (1). Conveyor belts (3) are provided on both the front and rear sides of the interior of the frame (1). A tray (4) is provided between the two conveyor belts (3). The tray (4) is fixedly connected to the bottom surface of the interior of the frame (1) by a support column. A support roller (5) is rotatably connected to the upper surface of the tray (4). Side plates (6) are provided on both the left and right sides of the tray (4). A pressure sensor (7) is fixedly connected to the side surface of the side plate (6) away from the tray (4). A limit rod (8) is fixedly connected to the side of the pressure sensor (7) away from the side plate (6). The left and right sides of the body (1) are provided with through grooves (18). The end of the limiting rod (8) away from the side plate (6) is fixedly connected to the connecting plate (9) through the through groove (18). The side of the connecting plate (9) near the limiting rod (8) is provided with a moving plate (10). The side surface of the moving plate (10) near the connecting plate (9) is rotatably connected with a lead screw (11). The end of the lead screw (11) away from the moving plate (10) passes through the connecting plate (9). The end of the lead screw (11) away from the moving plate (10) is fixedly connected with a handle (12). The lower part of the moving plate (10) is provided with a lifting assembly (13).

2. The sheet metal surface hardening spraying device according to claim 1, characterized in that: The end of the limiting rod (8) away from the side plate (6) passes through the moving plate (10), and the outer wall of the moving plate (10) is in contact with the outer wall of the frame (1).

3. The sheet metal surface hardening spraying device according to claim 1, characterized in that: The lower end of the side surface of the side plate (6) near the tray (4) is chamfered.

4. The sheet metal surface hardening spraying device according to claim 1, characterized in that: The lifting assembly (13) includes a fixed plate (131), which is fixedly connected to the side surface of the moving plate (10) near the connecting plate (9). A hydraulic cylinder (132) is fixedly connected to the bottom surface of the fixed plate (131), and a support frame (133) is fixedly connected to the bottom end of the hydraulic cylinder (132).

5. The sheet metal surface hardening spraying device according to claim 4, characterized in that: The support frame (133) is fixedly connected to the outer wall of the frame (1).

6. The sheet metal surface hardening spraying device according to claim 1, characterized in that: A limiting plate (14) is fixedly connected to the front of the side plate (6) located on the right side of the tray (4). A groove (15) is provided on the left side surface of the limiting plate (14). A limiting roller (16) is rotatably connected inside the groove (15). A telescopic rod (17) is fixedly connected to the right side surface of the limiting plate (14).

7. The sheet metal surface hardening spraying device according to claim 6, characterized in that: The right end of the telescopic rod (17) is fixedly connected to the inner wall of the frame (1).

8. The sheet metal surface hardening spraying device according to claim 6, characterized in that: The left end of the limiting roller (16) is on the same horizontal plane as the left side surface of the side plate (6) located on the right side of the tray (4).

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