Electrostatic plastic spraying device for surface of steel plate

Abstract

The utility model discloses a steel plate surface static electricity plastic spraying device which comprises a lifting machine, the surface of the lifting machine is in transmission connection with a transmission plate, the two sides of the transmission plate are fixedly connected with extending plates, the sides, away from the transmission plate, of the extending plates are fixedly connected with connecting rods, and the surfaces of the connecting rods are sleeved with connecting blocks. A spray gun is inserted into the front face of the connecting block, an extrusion plate is arranged at the bottom of the connecting block, the top of the extrusion plate makes contact with the bottom of the connecting block, a transmission structure is arranged on the front face of the transmission plate, the transmission structure can control the extrusion plate to ascend and descend, and the transmission structure comprises a connecting frame fixedly connected to the front face of the transmission plate. A plurality of spray guns are fixed through the extension plates on the two sides of the transmission plate and the connecting rods, synchronous spraying of the multiple spray guns is achieved, the machining efficiency is greatly improved, meanwhile, the connecting blocks can carry the spray guns to slide on the surfaces of the connecting rods, and the distance between the spray guns can be adjusted conveniently.

Description

Technical Field

[0001] This utility model relates to the field of steel plate processing technology, specifically to an electrostatic powder coating device for steel plate surfaces. Background Technology

[0002] Electrostatic powder coating of steel plates is a common surface treatment process. It uses the principle of electrostatic adsorption to evenly spray powder coating onto the surface of steel plates, and then cures it at high temperature to form a dense and durable coating.

[0003] For example, patent application number 202222274297.3 published on the China Patent Network, entitled "An Electrostatic Powder Coating Device for Steel Plate Surfaces," addresses the problem that existing electrostatic powder coating devices for steel plates have poor positioning effects, resulting in poor stability of the steel plates during the powder coating process and causing inconvenience. The proposed solution includes a processing table and an electrostatic powder coating machine body. The electrostatic powder coating machine body is fixedly installed on the top of the processing table. A rectangular groove is formed on the top of the processing table, and the same bidirectional threaded rod is rotatably installed on the inner walls of the left and right sides of the rectangular groove. Two movable plates are threaded onto the outer side of the bidirectional threaded rod. This utility model has a reasonable structural design. Through the threaded transmission between the bidirectional threaded rod and the movable plates, the rotation of the turntable causes the two clamping plates to move closer together, achieving positioning and clamping of the steel plate. Furthermore, the engagement of the insert plate with the slot of the turntable restricts the rotation of the turntable, improves clamping stability, facilitates powder coating work, and has high reliability.

[0004] However, existing spraying equipment mainly uses a single nozzle for spraying, which has a slow processing efficiency. In addition, during the spraying process, overlapping spraying may occur due to movement errors.

[0005] Therefore, it is necessary to redesign and modify the electrostatic powder coating device for steel plate surfaces. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an electrostatic powder coating device for steel plate surfaces, which has the advantage of improving spraying efficiency and solves the problems of existing spraying devices mainly using a single nozzle for spraying, which results in slow processing efficiency of a single nozzle and the possibility of overlapping spraying due to movement errors during the spraying process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrostatic powder coating device for steel plate surface, including a lifting platform;

[0008] The elevator has a transmission plate connected to its surface. Extension plates are fixedly connected to both sides of the transmission plate. A connecting rod is fixedly connected to the side of the extension plate away from the transmission plate. A connecting block is sleeved on the surface of the connecting rod. A spray gun is inserted into the front of the connecting block. An extrusion plate is provided at the bottom of the connecting block. The top of the extrusion plate contacts the bottom of the connecting block. A transmission structure is provided on the front of the transmission plate. The transmission structure can control the lifting and lowering of the extrusion plate.

[0009] As a preferred embodiment of this utility model, the transmission structure includes a connecting frame fixedly connected to the front side of the transmission plate. A bidirectional screw is movably connected inside the connecting frame via a bearing. The front end of the bidirectional screw extends through the front side of the connecting frame and is fixedly connected to a rotating wheel. Both sides of the surface of the bidirectional screw are threadedly connected to a threaded sleeve. Both sides of the threaded sleeve are movably connected to a crank via a pin. The side of the crank away from the threaded sleeve extends to the bottom of the extrusion plate and is movably connected to the extrusion plate via a pin.

[0010] As a preferred embodiment of this utility model, the top of the connecting block is provided with a clamping opening, the back of the connecting block is provided with a compression frame, both sides of the compression frame are set to be inclined outward, and both ends of the compression frame extend to both sides of the connecting block and are slidably connected to the connecting block.

[0011] As a preferred embodiment of this utility model, a vertical plate is fixedly connected to the surface of the extension plate, and a push plate is movably connected to the inner side of the vertical plate via a pin. The side of the push plate away from the vertical plate extends to the back of the extrusion frame.

[0012] As a preferred embodiment of this utility model, a force-bearing rod is fixedly connected to the bottom of the push plate, and push rods are fixedly connected to both ends of the front threaded sleeve. The side of the push rod away from the threaded sleeve extends to the front of the force-bearing rod and contacts the surface of the force-bearing rod.

[0013] As a preferred embodiment of this invention, a spring plate is fixedly connected to the back of the force-bearing rod, and the side of the spring plate away from the force-bearing rod contacts the front of the transmission plate, and the spring plate is elastic.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model fixes multiple spray guns by extending plates on both sides of the transmission plate and connecting rods, realizing synchronous spraying of multiple spray guns, which greatly improves processing efficiency. At the same time, the connecting block can carry the spray guns to slide on the surface of the connecting rod, which makes it easy to adjust the spacing of the spray guns.

[0016] 2. This utility model achieves stable lifting and lowering of the extrusion plate through the cooperation of a bidirectional screw and a screw sleeve, avoiding unilateral errors and ensuring the consistency of extrusion strength. The rotary drive screw is easy to operate and has high adjustment accuracy, making it suitable for the spraying needs of steel plates of different thicknesses.

[0017] 3. This utility model uses a clamping opening to cooperate with a sliding extrusion frame. The spray gun is tightened or loosened by the radial sliding of the extrusion frame, which facilitates quick replacement or fixation of the spray gun. The inclined design on both sides of the extrusion frame generates a radial component force when sliding, which can finely adjust the spray gun angle and adapt to complex curved surface spraying.

[0018] 4. This utility model forms a lever structure by using a vertical plate and a push plate to link the sliding of the extrusion frame with the action of the transmission structure, thereby realizing automatic adjustment of the spray gun clamping state. The push plate extends to the back of the extrusion frame, reducing additional driving components and lowering the size and cost of the equipment.

[0019] 5. This utility model achieves simultaneous adjustment of spray gun clamping and height by pushing the force rod with the push rod when the screw sleeve moves, triggering the push plate action, thus reducing manual intervention. The contact design between the push rod and the force rod ensures the instantaneous response of the mechanical action and avoids spraying errors caused by action delay.

[0020] 6. This utility model utilizes the elasticity of the spring plate to drive the force rod to reset when the push rod retracts, ensuring that the extrusion frame returns to its original position, maintaining stable clamping of the spray gun, and the spring plate absorbs the impact force during the transmission process, reducing component wear and extending equipment life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a bottom view of a partial structure of the present invention;

[0023] Figure 3 This is a left-side view of a partial structure of the present invention;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Elevator; 2. Transmission plate; 3. Extension plate; 4. Connecting rod; 5. Connecting block; 6. Spray gun; 7. Extrusion plate; 8. Transmission structure; 9. Connecting frame; 10. Double-acting screw; 11. Rotary wheel; 12. Screw sleeve; 13. Crank; 14. Extrusion frame; 15. Vertical plate; 16. Push plate; 17. Force rod; 18. Push rod; 19. Spring 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] like Figures 1 to 4 As shown, the present invention provides an electrostatic powder coating device for steel plate surface, including a lifting platform 1;

[0028] The surface of the elevator 1 is connected to a transmission plate 2. Extension plates 3 are fixedly connected to both sides of the transmission plate 2. A connecting rod 4 is fixedly connected to the side of the extension plate 3 away from the transmission plate 2. A connecting block 5 is sleeved on the surface of the connecting rod 4. A spray gun 6 is inserted into the front of the connecting block 5. An extrusion plate 7 is provided at the bottom of the connecting block 5. The top of the extrusion plate 7 contacts the bottom of the connecting block 5. A transmission structure 8 is provided on the front of the transmission plate 2. The transmission structure 8 can control the lifting and lowering of the extrusion plate 7.

[0029] refer to Figure 3 The transmission structure 8 includes a connecting frame 9 fixedly connected to the front of the transmission plate 2. A bidirectional screw 10 is movably connected inside the connecting frame 9 via a bearing. The front end of the bidirectional screw 10 extends through the front of the connecting frame 9 and is fixedly connected to a rotating wheel 11. Both sides of the surface of the bidirectional screw 10 are threadedly connected to a screw sleeve 12. Both sides of the screw sleeve 12 are movably connected to a crank 13 via a pin. The side of the crank 13 away from the screw sleeve 12 extends to the bottom of the extrusion plate 7 and is movably connected to the extrusion plate 7 via a pin.

[0030] As a technical optimization of this utility model, the extrusion plate 7 is stably raised and lowered by the cooperation of the bidirectional screw 10 and the screw sleeve 12, avoiding unilateral error and ensuring the consistency of extrusion strength. The rotary wheel 11 drives the screw, which is easy to operate and has high adjustment accuracy, and is suitable for the spraying needs of steel plates of different thicknesses.

[0031] refer to Figure 2 The top of the connecting block 5 is provided with a clamping opening, and the back of the connecting block 5 is provided with a pressing frame 14. Both sides of the pressing frame 14 are set to be inclined outward, and the two ends of the pressing frame 14 extend to the two sides of the connecting block 5 and slide to connect with the connecting block 5.

[0032] As a technical optimization of this utility model, the spray gun 6 is tightened or loosened by the radial sliding of the squeezing frame 14 through the clamping opening and the sliding extrusion frame 14, which facilitates quick replacement or fixation of the spray gun 6. The inclined design on both sides of the squeezing frame 14 generates radial force when sliding, which can finely adjust the angle of the spray gun 6 to adapt to complex curved surface spraying.

[0033] refer to Figure 3 An upright plate 15 is fixedly connected to the surface of the extension plate 3. A push plate 16 is movably connected to the inner side of the upright plate 15 via a pin. The side of the push plate 16 away from the upright plate 15 extends to the back of the extrusion frame 14.

[0034] As a technical optimization of this utility model, the lever structure formed by the upright plate 15 and the push plate 16 links the sliding of the extrusion frame 14 with the action of the transmission structure 8, so as to realize the automatic adjustment of the clamping state of the spray gun 6. The push plate 16 extends to the back of the extrusion frame 14, reducing additional driving components and reducing the size and cost of the equipment.

[0035] refer to Figure 3 A force-bearing rod 17 is fixedly connected to the bottom of the push plate 16, and push rods 18 are fixedly connected to both ends of the front threaded sleeve 12. The side of the push rod 18 away from the threaded sleeve 12 extends to the front of the force-bearing rod 17 and contacts the surface of the force-bearing rod 17.

[0036] As a technical optimization of this utility model, when the screw sleeve 12 moves, the push rod 18 pushes the force rod 17, triggering the action of the push plate 16, so as to realize the synchronous adjustment of the spray gun 6 clamping and height adjustment, reducing manual intervention. The contact design between the push rod 18 and the force rod 17 ensures the instantaneous response of the mechanical action and avoids spraying errors caused by action delay.

[0037] refer to Figure 4 A spring plate 19 is fixedly connected to the back of the force-bearing rod 17. The side of the spring plate 19 away from the force-bearing rod 17 is in contact with the front of the transmission plate 2. The spring plate 19 is elastic.

[0038] As a technical optimization of this utility model, the elasticity of the spring plate 19 drives the force rod 17 to reset when the push rod 18 retracts, ensuring that the extrusion frame 14 returns to its original position and the spray gun 6 is stably clamped. The spring plate 19 absorbs the impact force during the transmission process, reduces component wear, and extends the equipment life.

[0039] The working principle and usage process of this utility model: The lifting platform 1 drives the transmission plate 2 to a preset height. The extension plates 3 on both sides of the transmission plate 2 are fixed with multiple connecting blocks 5 through connecting rods 4. Each connecting block 5 is equipped with a spray gun 6. The connecting block 5 can slide on the surface of the connecting rod 4 and adjust the spacing of the spray guns 6. When the spray guns 6 are adjusted, the operator rotates the rotating wheel 11, which drives the bidirectional screw 10 to rotate. The screw sleeves 12 on both sides move synchronously along the screw towards the middle or the outside. The movement of the screw sleeves 12 drives the crank 13 to swing around the pin shaft, pushing the extrusion plate 7 to rise. The extrusion plate 7 passes through the top. Contact with the connecting block 5 achieves the effect of squeezing and fixing the spray gun 6. When the front threaded sleeve 12 moves, the push rods 18 at both ends of it are displaced accordingly, pushing the force rod 17 to move backward. The force rod 17 drives the push plate 16 to rotate around the pin of the vertical plate 15. The front end of the push plate 16 acts on the back of the squeezing frame 14, forcing the squeezing frame 14 to slide along both sides of the connecting block 5. The inclined design on both sides of the squeezing frame 14 causes it to generate radial squeezing on the connecting block 5 when sliding. The fixed state of the spray gun 6 is tightened through the clamping opening, thereby achieving the effect of finely adjusting the angle of the spray gun 6 or quickly replacing the spray gun 6.

[0040] In summary, this electrostatic powder coating device for steel plates uses the extension plates 3 on both sides of the transmission plate 2 and the connecting rod 4 to fix multiple spray guns 6, enabling simultaneous spraying by multiple spray guns 6, which greatly improves processing efficiency. At the same time, the connecting block 5 can carry the spray guns 6 to slide on the surface of the connecting rod 4, making it easy to adjust the spacing of the spray guns 6.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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. An electrostatic powder coating device for steel plate surface, comprising a lift (1); Its features are: The surface of the elevator (1) is connected to a transmission plate (2). Extension plates (3) are fixedly connected to both sides of the transmission plate (2). A connecting rod (4) is fixedly connected to the side of the extension plate (3) away from the transmission plate (2). A connecting block (5) is sleeved on the surface of the connecting rod (4). A spray gun (6) is inserted into the front of the connecting block (5). An extrusion plate (7) is provided at the bottom of the connecting block (5). The top of the extrusion plate (7) contacts the bottom of the connecting block (5). A transmission structure (8) is provided on the front of the transmission plate (2). The transmission structure (8) can control the lifting and lowering of the extrusion plate (7).

2. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The transmission structure (8) includes a connecting frame (9) fixedly connected to the front of the transmission plate (2). A bidirectional screw (10) is movably connected inside the connecting frame (9) via a bearing. The front end of the bidirectional screw (10) extends through the front of the connecting frame (9) and is fixedly connected to a rotating wheel (11). Both sides of the surface of the bidirectional screw (10) are threaded with a screw sleeve (12). Both sides of the screw sleeve (12) are movably connected with a crank (13) via a pin. The side of the crank (13) away from the screw sleeve (12) extends to the bottom of the extrusion plate (7) and is movably connected to the extrusion plate (7) via a pin.

3. The electrostatic powder coating device for steel plate surface according to claim 2, characterized in that: The top of the connecting block (5) is provided with a clamping opening, and the back of the connecting block (5) is provided with a compression frame (14). Both sides of the compression frame (14) are set to be inclined outward. The two ends of the compression frame (14) extend to the two sides of the connecting block (5) and slide to connect with the connecting block (5).

4. The electrostatic powder coating device for steel plate surface according to claim 3, characterized in that: The extension plate (3) is fixedly connected to the surface of the vertical plate (15), and the inner side of the vertical plate (15) is movably connected to the push plate (16) by a pin. The side of the push plate (16) away from the vertical plate (15) extends to the back of the extrusion frame (14).

5. The electrostatic powder coating device for steel plate surface according to claim 4, characterized in that: The bottom of the push plate (16) is fixedly connected to a force rod (17), and both ends of the front threaded sleeve (12) are fixedly connected to push rods (18). The push rod (18) extends from the side away from the threaded sleeve (12) to the front of the force rod (17) and contacts the surface of the force rod (17).

6. The electrostatic powder coating device for steel plate surface according to claim 5, characterized in that: A spring plate (19) is fixedly connected to the back of the force-bearing rod (17). The side of the spring plate (19) away from the force-bearing rod (17) is in contact with the front of the transmission plate (2). The spring plate (19) is elastic.

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