Electrostatic plastic spraying device for surface of steel plate

Abstract

The utility model discloses a steel plate surface electrostatic plastic spraying device, which relates to the technical field of electrostatic plastic spraying devices, and comprises a rack and a spray head moving mechanism, the rack comprises a stand column, the top end of the stand column is fixedly connected with a supporting plate, the top end of the supporting plate is fixedly connected with electrostatic plastic spraying equipment, and the top end of the supporting plate is fixedly connected with a rectangular frame; a steel plate clamping mechanism is arranged at the top end of the supporting plate, a nozzle moving mechanism is fixedly connected to the top end of the rectangular frame, a nozzle pitch changing mechanism is fixedly connected to the bottom end of the nozzle moving mechanism and comprises a sliding groove, a gear is rotationally connected into the sliding groove, and a rack is slidably connected to the inner side of the front end of the sliding groove. And one end of the rack is fixedly connected with a variable pitch table. The plastic spraying device has the beneficial effects that the number of the fixed nozzles and the sliding nozzles is increased, the plastic spraying range can be adjusted, and large workpieces can be effectively treated. And when small workpieces are processed, resources can be saved by withdrawing redundant spray heads.

Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic powder coating equipment, and in particular to an electrostatic powder coating equipment for steel plate surfaces. Background Technology

[0002] Electrostatic powder coating technology, as a highly efficient and environmentally friendly metal surface treatment process, has been widely used in fields such as steel plate corrosion protection and decoration. Its principle is to use a high-voltage electrostatic field to charge the powder coating, which then adheres to the grounded steel plate surface, forming a uniform coating after curing.

[0003] For example, patent document CN218167458U discloses an electrostatic powder coating device for steel plates. By pulling a rectangular frame, the insert plate moves downwards, compressing a spring and releasing the turntable. Rotating the turntable drives the threaded rod to rotate, bringing the moving plates closer together, and consequently, bringing the clamping plates closer together, thus achieving the clamping and positioning of the steel plate. Starting the motor causes the lead screw to rotate, and the sliding seat drives the spray head to move horizontally, uniformly powder coating the steel plate surface.

[0004] In existing patented technologies, a single spray gun with unidirectional linear movement is often used. This mode can handle small workpieces, but when encountering larger workpieces, the processing efficiency is affected by the number of nozzles and the movement mode, making it difficult to meet the requirements of adaptability. Utility Model Content

[0005] The purpose of this invention is to provide an electrostatic powder coating device for steel plate surfaces in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An electrostatic powder coating device for steel plate surface includes a frame and a nozzle moving mechanism. The frame includes a column, a support plate fixedly connected to the top of the column, an electrostatic powder coating device fixedly connected to the top of the support plate, a rectangular frame fixedly connected to the top of the support plate, a steel plate clamping mechanism at the top of the support plate, a nozzle moving mechanism at the top of the rectangular frame, and a nozzle pitch changing mechanism at the bottom of the nozzle moving mechanism. The nozzle pitch changing mechanism includes a slide groove, a gear rotatably connected inside the slide groove, a rack slidably connected to the inner side of the front end of the slide groove, a pitch changing platform fixedly connected to one end of the rack, a nozzle support plate fixedly connected to the bottom of the slide groove, a second motor fixedly connected to the top of the nozzle support plate, a gear fixedly connected to the output end of the second motor, two fixed nozzles fixedly connected to the top of the nozzle support plate, a lifting platform fixedly connected to the nozzle support plate, the fixed nozzles and the lifting platform symmetrically distributed on both sides of the second motor, a roller slidably connected to the top of the lifting platform, a sliding nozzle fixedly connected inside the roller, a compression spring fixedly connected inside the sliding nozzle, and the sliding nozzle and the pitch changing platform slidably connected.

[0008] Preferably, the bottom of the electrostatic powder coating equipment is fixedly connected to the top of the support plate, and a pipeline is fixedly connected to the top of the electrostatic powder coating equipment. The rear end of the pipeline is connected to a fixed nozzle and a sliding nozzle.

[0009] Preferably, the nozzle moving mechanism includes two limiting platforms. The bottom end of the limiting platform is fixedly connected to a rectangular frame. A one-way screw is rotatably connected inside the limiting platform. An optical axis is fixedly connected inside the limiting platform. The optical axis is symmetrically distributed on both sides of the one-way screw. A slide is threadedly connected to the one-way screw. The two ends of the slide are slidably connected to the optical axis. A motor is fixedly connected to the rear end of the limiting platform. The output end of the motor is fixedly connected to the one-way screw. The top end of the slide groove is fixedly connected to the bottom end of the slide.

[0010] Preferably, the steel plate clamping mechanism includes a base, the bottom end of which is fixedly connected to a support plate. A bidirectional lead screw is rotatably connected inside the base. Two guide rails are fixedly connected inside the base and are symmetrically distributed on both sides of the bidirectional lead screw. Two limiting moving plates are threadedly connected to the bidirectional lead screw. The two ends of the limiting moving plates are slidably connected to the guide rails. Clamping plates are fixedly connected to the limiting moving plates. A third motor is fixedly connected to the rear end of the base. The bidirectional lead screw and the output shaft of the third motor are fixedly connected.

[0011] Preferably, a compression spring is fitted between the sliding nozzle and the pitch control table, and the top of the compression spring is fixedly connected to the pitch control table.

[0012] Preferably, the bottom of the pitch-changing stage is a cylindrical sleeve.

[0013] The advantages are: by increasing the number of fixed and sliding nozzles, and with an adjustable powder coating range, effective processing of large workpieces can be ensured. When processing small workpieces, resources can be saved by retracting excess nozzles.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an isometric half-sectional view of the electrostatic powder coating device for steel plate surface described in this utility model;

[0017] Figure 2 This is an isometric view of the steel plate clamping mechanism of the electrostatic powder coating device for steel plate surface described in this utility model;

[0018] Figure 3This is an isometric view of the nozzle moving mechanism of the electrostatic powder coating device for steel plate surface described in this utility model;

[0019] Figure 4 This is an isometric view of the nozzle support plate of the electrostatic powder coating device for steel plate surface described in this utility model;

[0020] Figure 5 This is an isometric half-sectional view of the nozzle pitch-changing mechanism of the electrostatic powder coating device for steel plate surface described in this utility model;

[0021] Figure 6 This is a front sectional view of the nozzle pitch-changing mechanism of the electrostatic powder coating device for steel plate surface described in this utility model;

[0022] Figure 7 This utility model describes an electrostatic powder coating device for steel plate surfaces. Figure 6 Enlarged view of point A in the middle.

[0023] The reference numerals in the attached drawings are explained as follows: 101, column; 102, support plate; 103, rectangular frame; 201, electrostatic powder coating equipment; 202, pipeline; 301, limiting platform one; 302, optical axis; 303, unidirectional lead screw; 304, slide table; 305, motor one; 401, limiting moving plate; 402, clamping plate; 403, guide rail; 404, bidirectional lead screw; 405, base; 406, motor three; 501, slide groove; 502, gear; 503, variable pitch platform; 504, rack; 505, nozzle support plate; 506, motor two; 507, fixed nozzle; 508, sliding nozzle; 509, roller; 510, lifting platform; 511, compression spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-7As shown, an electrostatic powder coating device for steel plate surface includes a frame and a nozzle moving mechanism. The frame includes a column 101, a support plate 102 welded to the top of the column 101, an electrostatic powder coating device 201 bolted to the top of the support plate 102, a rectangular frame 103 welded to the top of the support plate 102, a steel plate clamping mechanism provided at the top of the support plate 102, and a nozzle moving mechanism provided at the top of the rectangular frame 103. A nozzle pitch changing mechanism is provided at the bottom of the nozzle moving mechanism, and the nozzle pitch changing mechanism includes a slide groove 501. The internal rotating connection is a gear 502. A rack 504 is slidably connected to the inner front end of the slide groove 501. One end of the rack 504 is bolted to a pitch-changing platform 503. The bottom end of the slide groove 501 is bolted to a nozzle support plate 505. The top end of the nozzle support plate 505 is bolted to a second motor 506. The gear 502 is keyed to the output end of the second motor 506. Two fixed nozzles 507 are bolted to the top end of the nozzle support plate 505. A lifting platform 510 is welded onto the nozzle support plate 505. The fixed nozzles 507 and the lifting platform 510 are connected together. The nozzles 507 and 508 are symmetrically distributed on both sides of the motor 506. Rollers 509 are slidably connected to the top of the lifting platform 510. A sliding nozzle 508 is threadedly connected inside the roller 509. A compression spring 511 is welded inside the sliding nozzle 508. The sliding nozzle 508 and the pitch-changing platform 503 are slidably connected. When the steel plate is clamped, the nozzle pitch-changing mechanism begins to move. First, the distance between the fixed nozzle 507 and the sliding nozzle 508 is adjusted according to the size of the steel plate. The rotation of the motor 506 drives the rotation of the gear 502, which in turn drives the rack 50... 4. Sliding, which in turn drives the variable pitch stage 503. After the variable pitch stage 503 slides, the sliding nozzle 508 will fall onto the nozzle holder plate 505 under the action of the elastic force of the compression spring 511 and gravity. At this time, it can work normally. If the workpiece is small, the variable pitch stage 503 will retract inward, and the roller 509 will first contact the lifting stage 510. The lifting stage 510 has a structure with a slope at one end, which can make the sliding nozzle 508 rise more smoothly. Under the action of the slope of the lifting stage 510, the sliding nozzle 508 is raised and retracted.

[0028] The bottom of the electrostatic powder coating equipment 201 is bolted to the top of the support plate 102. The top of the electrostatic powder coating equipment 201 is threaded with a pipe 202. The rear end of the pipe 202 is connected to the fixed nozzle 507 and the sliding nozzle 508.

[0029] The nozzle moving mechanism includes two limiting platforms 301. The bottom of the limiting platform 301 is bolted to the rectangular frame 103. A one-way lead screw 303 is rotatably connected inside the limiting platform 301. An optical axis 302 is welded inside the limiting platform 301. The optical axis 302 is symmetrically distributed on both sides of the one-way lead screw 303. A slide table 304 is bolted to the one-way lead screw 303. The two ends of the slide table 304 are slidably connected to the optical axis 302. A motor 305 is bolted to the rear end of the limiting platform 301. The output end of the motor 305 is keyed to the one-way lead screw 303. The top end of the slide groove 501 is bolted to the bottom end of the slide table 304. When the nozzle moving mechanism starts to move, the motor 305 rotates, driving the one-way lead screw 303 to rotate. The rotation of the one-way lead screw 303 drives the slide table 304 to move to complete the spraying work.

[0030] The steel plate clamping mechanism includes a base 405, the bottom end of which is bolted to a support plate 102. A bidirectional lead screw 404 is rotatably connected inside the base 405. Two guide rails 403 are welded inside the base 405, symmetrically distributed on both sides of the bidirectional lead screw 404. Two limiting moving plates 401 are bolted to the bidirectional lead screw 404. The two ends of the limiting moving plates 401 are slidably connected to the guide rails 403. Clamping plates 402 are welded to the limiting moving plates 401. A motor 406 is bolted to the rear end of the base 405. The output shafts of the bidirectional lead screw 404 and the motor 406 are connected by a coupling. When the steel plate is placed on the nozzle moving mechanism, the motor 406 starts, driving the bidirectional lead screw 404 to rotate. The bidirectional lead screw 404 drives the limiting moving plates 401 to retract inward, clamping the steel plate.

[0031] A compression spring 511 is fitted between the sliding nozzle 508 and the pitch control platform 503. The top of the compression spring 511 is welded to the pitch control platform 503. When the pitch control platform 503 slides, the sliding nozzle 508 will fall onto the nozzle support plate 505 under the action of the elastic force of the compression spring 511 and gravity.

[0032] The bottom of the pitch stage 503 is a cylindrical sleeve. The sleeve at the bottom of the pitch stage 503 can slide relative to the sliding nozzle 508 to ensure that the sliding nozzle 508 moves in a predetermined direction.

[0033] Working principle: The steel plate is placed on the steel plate clamping mechanism. The motor 406 starts, driving the double-acting lead screw 404 to rotate. The double-acting lead screw 404 drives the limit moving plate 401 to retract inward, clamping the steel plate. After the steel plate is clamped, the nozzle pitch changing mechanism starts to move. First, the distance between the fixed nozzle 507 and the sliding nozzle 508 is adjusted according to the size of the steel plate. The rotation of the motor 506 drives the gear 502 to rotate. The rotation of the gear 502 drives the rack 504 to slide, which in turn drives the pitch changing platform 503. The pitch changing platform 503 slides and then slides... The movable nozzle 508 will fall onto the nozzle holder plate 505 under the action of the spring force of the compression spring 511 and gravity, and can work normally at this time. If the workpiece is small, the variable pitch table 503 will retract inward, and the roller 509 will first contact the lifting table 510. Under the action of the slope of the lifting table 510, the sliding nozzle 508 will be lifted and the sliding nozzle 508 will be retracted. Then the nozzle moving mechanism will start to move. The motor 305 will rotate and drive the one-way screw 303 to rotate. The rotation of the one-way screw 303 will drive the slide table 304 to move to complete the spraying work.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A steel plate surface electrostatic powder coating device, comprising a frame and a spray head moving mechanism, characterized in that: The frame includes a column (101), a support plate (102) is fixedly connected to the top of the column (101), an electrostatic powder coating device (201) is fixedly connected to the top of the support plate (102), a rectangular frame (103) is fixedly connected to the top of the support plate (102), a steel plate clamping mechanism is provided at the top of the support plate (102), a nozzle moving mechanism is provided at the top of the rectangular frame (103), a nozzle pitch changing mechanism is provided at the bottom of the nozzle moving mechanism, the nozzle pitch changing mechanism includes a slide groove (501), a gear (502) is rotatably connected inside the slide groove (501), a rack (504) is slidably connected to the inner side of the front end of the slide groove (501), a pitch changing platform (503) is fixedly connected to one end of the rack (504), and the bottom end of the slide groove (501) is fixedly connected to... A nozzle holder plate (505) is attached, and a second motor (506) is fixedly connected to the top of the nozzle holder plate (505). A gear (502) is fixedly connected to the output end of the second motor (506). Two fixed nozzles (507) are fixedly connected to the top of the nozzle holder plate (505). A lifting platform (510) is fixedly connected to the nozzle holder plate (505). The fixed nozzles (507) and the lifting platform (510) are symmetrically distributed on both sides of the second motor (506). A roller (509) is slidably connected to the top of the lifting platform (510). A sliding nozzle (508) is fixedly connected inside the roller (509). A compression spring (511) is fixedly connected inside the sliding nozzle (508). The sliding nozzle (508) is slidably connected to the pitch control platform (503).

2. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The bottom end of the electrostatic powder coating equipment (201) is fixedly connected to the top end of the support plate (102), and the top end of the electrostatic powder coating equipment (201) is fixedly connected to a pipe (202). The rear end of the pipe (202) is connected to the fixed nozzle (507) and the sliding nozzle (508).

3. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The nozzle moving mechanism includes two limiting platforms (301). The bottom end of the limiting platform (301) is fixedly connected to the rectangular frame (103). A one-way screw (303) is rotatably connected inside the limiting platform (301). An optical axis (302) is fixedly connected inside the limiting platform (301). The optical axis (302) is symmetrically distributed on both sides of the one-way screw (303). A slide (304) is threaded onto the one-way screw (303). Both ends of the slide (304) are slidably connected to the optical axis (302). A motor (305) is fixedly connected to the rear end of the limiting platform (301). The output end of the motor (305) is fixedly connected to the one-way screw (303). The top end of the slide groove (501) is fixedly connected to the bottom end of the slide (304).

4. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The steel plate clamping mechanism includes a base (405), the bottom end of which is fixedly connected to a support plate (102). A bidirectional lead screw (404) is rotatably connected inside the base (405). Two guide rails (403) are fixedly connected inside the base (405). The guide rails (403) are symmetrically distributed on both sides of the bidirectional lead screw (404). Two limiting moving plates (401) are threadedly connected to the bidirectional lead screw (404). The two ends of the limiting moving plates (401) are slidably connected to the guide rails (403). A clamping plate (402) is fixedly connected to the limiting moving plates (401). A motor (406) is fixedly connected to the rear end of the base (405). The output shafts of the bidirectional lead screw (404) and the motor (406) are fixedly connected.

5. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The compression spring (511) is sleeved between the sliding nozzle (508) and the pitch stage (503), and the top end of the compression spring (511) is fixedly connected to the pitch stage (503).

6. The electrostatic powder coating device for steel plate surface according to claim 1, characterized in that: The bottom of the variable pitch stage (503) is a cylindrical sleeve.

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