A double-sided sand blasting device for plate spraying

Abstract

The utility model belongs to sand blasting equipment technical field, concretely relates to a kind of double-sided sand blasting equipment for plate spraying, including rack, the top of the rack is horizontally provided with conveying mechanism, the middle part of the rack is fixedly connected with sand blasting bin, inside the sand blasting bin upper and lower sides are symmetrically provided with a pair of sand blasting mechanism along conveying mechanism, the side wall of the sand blasting bin is provided with cleaning mechanism, the sand blasting mechanism includes first motor, the rotating shaft of the first motor is fixedly connected with rotating wheel, the outer edge of the rotating wheel is hinged with rotating rod, the other end of the rotating rod is hinged with lever, the parallel rotating connection between the inner side wall of the sand blasting bin is connected with several swing rods, the other end of the lever is fixedly connected with adjacent swing rod. The utility model has the beneficial effects that by being provided with sand blasting mechanism, the nozzle can be deflected on the upper and lower sides of the plate during sand blasting, to avoid the damage to the surface of the plate caused by long-time fixed sand blasting of the nozzle.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting equipment technology, specifically a double-sided sandblasting equipment for sheet metal coating. Background Technology

[0002] Panel spraying, a key process for enhancing the performance and aesthetics of panels, is widely used in construction, furniture, electronics, and other fields. Its core objective is to form a uniform, dense coating with specific functions to enhance the weather resistance, corrosion resistance, and decorative properties of the panels. From a process type perspective, panel spraying mainly includes air spraying, high-pressure airless spraying, and automated reciprocating spraying. Air spraying atomizes the coating using compressed air, suitable for panels with complex textures, but with lower coating utilization. High-pressure airless spraying uses a high-pressure pump to directly deliver the coating, achieving efficient and uniform spraying, especially suitable for metal panels such as aluminum panels. Automated reciprocating spraying systems integrate robotic arms and intelligent monitoring technologies, enabling unmanned operation and significantly improving production efficiency and product quality. To ensure coating quality, the surface of the panel needs to be cleaned by sandblasting before spraying.

[0003] Existing sandblasting equipment typically uses multiple fixedly arranged nozzles to sandblast the surface of large-sized plates. When the nozzles sandblast the plate, they can easily damage the surface of the plate, and the rust that falls off can easily remain on the surface of the plate, affecting the subsequent coating process. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing plate sandblasting equipment easily damages the plate and leaves rust residue on the plate surface during sandblasting.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A double-sided sandblasting device for sheet metal coating includes a frame. A conveying mechanism is horizontally arranged at the top of the frame. A sandblasting chamber is fixedly connected to the middle of the frame. A pair of sandblasting mechanisms are symmetrically arranged on the upper and lower sides of the sandblasting chamber along the conveying mechanism. A cleaning mechanism is provided on the side wall of the sandblasting chamber. Each sandblasting mechanism includes a first motor. A rotating wheel is fixedly connected to the shaft of the first motor. A rotating rod is hinged to the outer edge of the rotating wheel. A lever is hinged to the other end of the rotating rod. A plurality of swing rods are rotatably connected in parallel between the inner side walls of the sandblasting chamber. The other end of the lever is fixedly connected to an adjacent swing rod. A plurality of movable rods are fixedly connected to the middle of each swing rod. A nozzle is fixedly connected to the bottom of each movable rod.

[0007] Furthermore, each of the swing rods is fixedly connected to a fixed rod at the end away from the lever, and several fixed rods are arranged in parallel, with connecting rods hinged between the ends of the fixed rods away from the swing rod.

[0008] Furthermore, the conveying mechanism includes several parallel conveying rollers, the swing rod is perpendicular to the conveying rollers, and the nozzle is staggered with the conveying rollers.

[0009] Furthermore, the cleaning mechanism includes a pair of lifting cylinders, which are fixedly connected to the outer wall of the sandblasting chamber. The piston rod of the lifting cylinder is fixedly connected to a lifting frame, which is slidably connected to the outer wall of the sandblasting chamber. A cleaning roller is rotatably connected to the bottom of the lifting frame, and a second motor is fixedly connected to the outer wall of the lifting frame. The rotating shaft of the second motor is fixedly connected to the roller shaft of the cleaning roller.

[0010] Furthermore, the rotation direction of the cleaning roller is opposite to the conveying direction of the conveying mechanism.

[0011] Furthermore, the bottom of the conveying mechanism is provided with several hoppers, and the bottoms of the hoppers are connected by a discharge pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The present invention relates to a double-sided sandblasting equipment for coating sheet metal. By setting up a sandblasting mechanism, the nozzle can be tilted on the upper and lower sides of the sheet metal during sandblasting, avoiding damage to the surface of the sheet metal caused by the nozzle being fixed for a long time.

[0014] 2. The present invention provides a double-sided sandblasting equipment for sheet metal spraying, which, by being equipped with a cleaning mechanism, can clean the rust that has come off the surface of the sheet metal after sandblasting, thus preventing it from remaining on the surface of the sheet metal and affecting the spraying quality of the sheet metal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a double-sided sandblasting equipment for sheet metal spraying according to the present invention.

[0016] Figure 2 This is a schematic diagram of the first motor installation structure of a double-sided sandblasting device for sheet metal spraying according to the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the sandblasting chamber of a double-sided sandblasting equipment for sheet metal spraying according to the present invention.

[0018] Figure 4 This is a side view of a double-sided sandblasting device for sheet metal spraying according to the present invention.

[0019] In the diagram: 1. Frame; 2. Conveying mechanism; 3. Sandblasting chamber; 4. Hopper; 5. Discharge pipe; 6. Cleaning mechanism; 601. Lifting cylinder; 602. Lifting frame; 603. Cleaning roller; 604. Second motor; 7. Sandblasting mechanism; 701. First motor; 702. Rotating wheel; 703. Rotating rod; 704. Pulley; 705. Swinging rod; 706. Fixed rod; 707. Connecting rod; 708. Movable rod; 709. Nozzle. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3The double-sided sandblasting equipment for sheet metal spraying in this embodiment includes a frame 1. A conveying mechanism 2 is horizontally arranged on the top of the frame 1 for conveying the sheet metal. A sandblasting chamber 3 is fixedly connected to the middle of the frame 1. A pair of sandblasting mechanisms 7 are symmetrically arranged on the upper and lower sides of the sandblasting chamber 3 along the conveying mechanism 2 for synchronously sandblasting both sides of the sheet metal. A cleaning mechanism 6 is provided on the side wall of the sandblasting chamber 3 for cleaning the top of the sheet metal after sandblasting. The sandblasting mechanism 7 includes a first motor 701. A rotating wheel 702 is fixedly connected to the shaft of the first motor 701. The outer edge of the rotating wheel 702... A rotating rod 703 is hinged to the other end of the rotating rod 703, and a lever 704 is hinged to the other end of the rotating rod 703. Several swing rods 705 are rotatably connected in parallel between the inner side walls of the sandblasting chamber 3. The other end of the lever 704 is fixedly connected to the adjacent swing rod 705. Several movable rods 708 are fixedly connected to the middle of the swing rod 705. A nozzle 709 is fixedly connected to the bottom of the movable rod 708. A fixed rod 706 is fixedly connected to the end of each swing rod 705 away from the lever 704. Several fixed rods 706 are arranged in parallel. A connecting rod 707 is hinged between the ends of the fixed rods 706 away from the swing rods 705. During sandblasting, the conveying mechanism 2 transports the sheet metal into the sandblasting chamber 3, positioning it between several symmetrically arranged nozzles 709 on both the upper and lower sides. Abrasive is then ejected from the nozzles 709, simultaneously sandblasting both sides of the sheet metal as it moves. During sandblasting, the first motor 701 drives the rotating wheel 702 to rotate, causing the rotating rod 703 connected to the edge of the rotating wheel 702 to drive the lever 704 to reciprocate. The lever 704's movement drives the connected swing rod 705 to reciprocate periodically. The rotation of the swing rod 705, connected to the lever 704, drives the fixed end of the lever 705 to reciprocate periodically. The rod 706 moves accordingly. When the fixed rod 706 moves, it drives the other fixed rods 706 to reciprocate through the connecting rod 707, thereby causing the parallel swing rods 705 to swing synchronously. When the swing rods 705 move, they drive the bottom movable rod 708 and the nozzle 709 to swing periodically, thereby avoiding damage to the surface of the board caused by the nozzle 709 being fixed for sandblasting for a long time. After sandblasting is completed, the board flows out of the sandblasting chamber 3 with the conveying mechanism 2. At this time, the cleaning mechanism 6 can clean the rust that has been removed from the surface of the board after sandblasting, so as to avoid it remaining on the surface of the board and affecting the coating quality of the board.

[0022] The conveying mechanism 2 includes several parallel conveying rollers, a swing arm 705 perpendicular to the conveying rollers, and nozzles 709 staggered with the conveying rollers. By staggering the nozzles 709 with the conveying rollers, damage to the conveying rollers by the abrasive during sandblasting can be avoided.

[0023] Please see Figure 4The cleaning mechanism 6 includes a pair of lifting cylinders 601, which are fixedly connected to the outer wall of the sandblasting chamber 3. The piston rod of each lifting cylinder 601 is fixedly connected to a lifting frame 602, which is slidably connected to the outer wall of the sandblasting chamber 3. A cleaning roller 603 is rotatably connected to the bottom of the lifting frame 602. A second motor 604 is fixedly connected to the outer wall of the lifting frame 602, and the shaft of the second motor 604 is fixedly connected to the roller shaft of the cleaning roller 603. The rotation direction of the cleaning roller 603 is opposite to the conveying direction of the conveying mechanism 2. During cleaning, the lifting cylinders 601 drive the lifting frame 602 and the cleaning roller 603 downwards to the cleaning station. At this point, the cleaning roller 603 contacts the top of the material. Then, the second motor 604 is activated, causing the cleaning roller 603 to rotate in the opposite direction to the conveying direction of the conveying mechanism 2, cleaning any remaining rust and abrasive on the top of the material. This cleans the residue, causing it to fall into the hopper at the bottom of the sandblasting chamber 3, preventing it from remaining on the surface of the material and affecting the coating quality.

[0024] The bottom of the conveying mechanism 2 is equipped with several hoppers 4, and the bottoms of the hoppers 4 are connected by a discharge pipe 5. During the conveying and sandblasting process, the rust that falls off the bottom of the plate and the abrasive sprayed by the nozzle 709 fall into the inside of the hoppers 4, and are finally collected through the discharge pipe 5 for easy recycling of the abrasive.

[0025] Working principle: During sandblasting, the conveying mechanism 2 transports the sheet metal into the sandblasting chamber 3, placing it between several nozzles 709 symmetrically arranged on the upper and lower sides. Abrasive is then ejected from the nozzles 709, simultaneously sandblasting both sides of the sheet metal as it moves. During sandblasting, the first motor 701 drives the rotating wheel 702 to rotate, causing the rotating rod 703 connected to the edge of the rotating wheel 702 to drive the lever 704 to reciprocate. The lever 704's movement drives the connected swing rod 705 to reciprocate periodically. The rotation of the swing rod 705, connected to the lever 704, causes its other end, the fixed rod 706, to move accordingly. This movement of the fixed rod 706, via the connecting rod 707, drives the remaining fixed rods 706 to reciprocate, causing the parallel swing rods 705 to swing synchronously. The movement of the swing rods 705 drives the bottom movable rod 708 and the nozzles 709. The periodic swaying of the nozzle 709 prevents damage to the surface of the board caused by prolonged fixed sandblasting. After sandblasting, the board flows out of the sandblasting chamber 3 with the conveying mechanism 2. At this time, the cleaning mechanism 6 can clean the rust that has come off the surface of the board after sandblasting. During cleaning, the lifting cylinder 601 drives the lifting frame 602 and the cleaning roller 603 to move downward to the cleaning station. At this time, the cleaning roller 603 contacts the top of the board, and then the second motor 604 is started, so that the cleaning roller 603 rotates in the opposite direction to the conveying direction of the conveying mechanism 2 to clean the remaining rust and abrasive on the top of the board, so that it falls into the hopper at the bottom of the sandblasting chamber 3, avoiding its residue on the surface of the board and affecting the coating quality. During the sandblasting process, the rust that falls off the bottom of the board and the abrasive sprayed by the nozzle 709 fall into the hopper 4, and are finally collected through the discharge pipe 5 for easy abrasive recycling.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sided sandblasting device for sheet metal spraying, characterized in that: The system includes a frame (1), a conveying mechanism (2) horizontally arranged at the top of the frame (1), a sandblasting chamber (3) fixedly connected to the middle of the frame (1), a pair of sandblasting mechanisms (7) symmetrically arranged on the upper and lower sides of the interior of the sandblasting chamber (3) along the conveying mechanism (2), a cleaning mechanism (6) arranged on the side wall of the sandblasting chamber (3), and a sandblasting mechanism (7) including a first motor (701), the shaft of the first motor (701) being fixedly connected to a rotating wheel (702). A rotating rod (703) is hinged to the outer edge of the rotating wheel (702), and a lever (704) is hinged to the other end of the rotating rod (703). Several swing rods (705) are rotatably connected in parallel between the inner sidewalls of the sandblasting chamber (3). The other end of the lever (704) is fixedly connected to the adjacent swing rod (705). Several movable rods (708) are fixedly connected to the middle of the swing rod (705), and a nozzle (709) is fixedly connected to the bottom of the movable rod (708).

2. The double-sided sandblasting equipment for sheet metal spraying according to claim 1, characterized in that: Each swing rod (705) is fixedly connected to a fixed rod (706) at the end away from the lever (704). Several fixed rods (706) are arranged in parallel, and connecting rods (707) are hinged between the ends of the fixed rods (706) away from the swing rod (705).

3. The double-sided sandblasting equipment for sheet metal spraying according to claim 1, characterized in that: The conveying mechanism (2) includes several parallel conveying rollers, the swing rod (705) is perpendicular to the conveying rollers, and the nozzle (709) is staggered with the conveying rollers.

4. The double-sided sandblasting equipment for sheet metal spraying according to claim 3, characterized in that: The cleaning mechanism (6) includes a pair of lifting cylinders (601), which are fixedly connected to the outer wall of the sandblasting chamber (3). The piston rod of the lifting cylinder (601) is fixedly connected to a lifting frame (602). The lifting frame (602) is slidably connected to the outer wall of the sandblasting chamber (3). A cleaning roller (603) is rotatably connected to the bottom of the lifting frame (602). A second motor (604) is fixedly connected to the outer wall of the lifting frame (602). The rotating shaft of the second motor (604) is fixedly connected to the roller shaft of the cleaning roller (603).

5. The double-sided sandblasting equipment for sheet metal spraying according to claim 4, characterized in that: The rotation direction of the cleaning roller (603) is opposite to the conveying direction of the conveying mechanism (2).

6. The double-sided sandblasting equipment for sheet metal spraying according to claim 1, characterized in that: The bottom of the conveying mechanism (2) is provided with several hoppers (4), and the bottoms of the hoppers (4) are connected by a discharge pipe (5).

Images