Spraying device based on plastic product processing

Abstract

The invention relates to the technical field of plastic product processing, and discloses a spraying device based on plastic product processing, which comprises a fixed base plate, a conveyor belt is arranged on the side surface of the fixed base plate, the top end of the conveyor belt is fixedly connected with a protective limiting mechanism, and the top end of the protective limiting mechanism is movably connected with a plastic bottle piece. The side face of the fixed base plate is fixedly connected with a cleaning mechanism, and one side of the fixed base plate is fixedly connected with a cleaning and drying mechanism. A plastic bottle piece is reversely placed on the protection limiting mechanism, at the moment, an electromagnet in the protection limiting mechanism is powered on and enables a magnetic plate to move upwards, when the magnetic plate moves upwards, two limiting plates rotate around a fixing shaft, the top ends of the limiting plates rotate downwards so as to make contact with the interior of the plastic bottle piece, and the plastic bottle piece is fixed; and when the limiting plate rotates downwards, the whole plastic bottle piece is driven to move downwards, so that the bottom end of the plastic bottle piece makes contact with the protection plate, and the interior of the plastic bottle piece is sealed.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic product processing, and more specifically to a spraying device based on plastic product processing. Background Art

[0002] Plastic products are a general term for daily and industrial products made of plastic as the main raw material, including products made of injection molding, vacuum forming and other processes using plastic as the raw material. Plastic is a type of synthetic polymer material with plasticity. Plastic, synthetic rubber and synthetic fiber form the three major synthetic materials that are indispensable in daily life. Plastic is a material that uses natural or synthetic resin as the main component and adds various additives. It can be molded into a certain shape under certain conditions of temperature and pressure and keeps the shape unchanged at room temperature. Plastic products are widely used. Plastic products are generally prepared by molten plastic injection molding. However, after injection molding, the surface color of some products is not uniform and needs to be sprayed. Or when the plastic products have appearance requirements, spraying is also required. After spraying, a protective film can be formed on the plastic surface to block the erosion of oxygen, moisture, atmospheric pollutants and other factors, thereby extending the service life of the product. When spraying bottle-shaped plastic products, the outer surface of the bottle-shaped plastic products must be turned upside down on the rotating shaft. At this time, the rotating shaft drives the bottle-shaped product to rotate, and the rotating shaft moves with the conveyor belt to complete the continuous spraying process. Since there is no stable connection structure between the rotating shaft and the bottle-shaped product, the rotating shaft cannot drive the bottle-shaped product to rotate. At this time, it is impossible to ensure that the bottle-shaped product is sprayed evenly, and when spraying, there is a situation where the spray is sprayed into the bottle-shaped product; Before spraying, it is necessary to clean the bottle-shaped parts to avoid dust on the surface that affects the spraying effect. Nowadays, it is generally cleaned by various wiping methods. This method has low working efficiency and cannot ensure that the surface of the bottle-shaped plastic parts to be sprayed is clean enough. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a spraying device based on plastic product processing to solve the technical problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spraying device based on plastic product processing, comprising a fixed base plate, a conveyor belt is provided on the side of the fixed base plate, a protective limiting mechanism is fixedly connected to the top of the conveyor belt, a plastic bottle is movably connected to the top of the protective limiting mechanism, a cleaning mechanism is fixedly connected to the side of the fixed base plate, a cleaning and drying mechanism is fixedly connected to one side of the fixed base plate, an upper spray head is fixedly connected to the other side of the fixed base plate, and a side spray head is provided at the bottom of the upper spray head; The protective limit mechanism includes a connecting shaft fixedly connected to the top of the conveyor belt, a mounting hole is opened inside the connecting shaft, an electromagnet is fixedly connected in the mounting hole of the connecting shaft, a magnetic plate is provided on the top of the electromagnet, both sides of the top of the magnetic plate are movably connected to the limit plates, the inside of the limit plate is movably connected with a fixed shaft, both sides of the fixed shaft are fixedly connected to the inside of the connecting shaft, the limit plate forms an angle of ten degrees with the vertical direction, and the bottom ends of the two limit plates are provided with avoidance grooves that can cross each other.

[0005] In a preferred embodiment, the upper spray head is located at the top of the plastic bottle, the side spray head is located in the middle of the side of the plastic bottle, one side of the cleaning and drying mechanism is located on the side of the plastic bottle to be sprayed, and the other side of the cleaning and drying mechanism is located at the top of the plastic bottle after spraying.

[0006] In a preferred embodiment, the two limit plates are movably connected internally with a conical block, the top end of the conical block is fixedly connected to a connecting rod, the top end of the conical block is movably connected to a fixed block, the fixed block is provided with a avoidance groove for the connecting rod to move, and the side of the fixed block is fixedly connected to the top end of the connecting shaft, and the side of the connecting rod is movably connected to a spring.

[0007] In a preferred embodiment, the magnetic plate is fixedly connected to limit blocks on both sides, a sliding groove is provided inside the connecting shaft for the limit blocks to move, a protective plate is fixedly connected to the bottom end of the side of the connecting shaft, and the sides of the two limit plates facing away from each other are provided with rounded corners.

[0008] In a preferred embodiment, the cleaning mechanism includes a fixed plate fixed to a fixed base plate, the bottom end of the fixed plate is movably connected to a moving block, the top end of the moving block is threadedly connected to a rotating screw, the top end of the moving block is movably connected to a limiting rod, and the top end of the limiting rod is fixedly connected to the bottom end of the fixed plate.

[0009] In a preferred embodiment, the bottom end of the moving block is fixedly connected to a protection box, the top end of the protection box is fixedly connected to a servo motor, the bottom end of the servo motor is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a first electrostatic brush, the side of the first electrostatic brush is fixedly connected to a first bevel gear, the side of the first bevel gear is meshed with a second bevel gear, and the side of the second bevel gear away from the moving block is fixedly connected to a second electrostatic brush.

[0010] In a preferred embodiment, the cleaning and drying mechanism includes a connecting box fixedly connected to the side of the fixed base plate, the connecting box is fixedly connected to an output motor on the side away from the fixed base plate, the output motor is fixedly connected to an output shaft on the side close to the connecting box, the output shaft is fixedly connected to a rotating blade on the side away from the output motor, a conical cylinder is provided on the side of the rotating blade away from the output motor, the side of the conical cylinder is fixedly connected to the side of the connecting box, the side of the conical cylinder away from the rotating blade is fixedly connected to a connecting pipe, and the side of the connecting pipe away from the conical cylinder is fixedly connected to an exhaust pipe.

[0011] In a preferred embodiment, a filter is fixedly connected to the side of the connection box close to the output shaft, a first heating wire is fixedly connected to the middle of the inner side of the connection box, a second heating wire is fixedly connected to the side of the connection box away from the filter, and an exhaust pipe is fixedly connected to the bottom end of the connection box. There are two exhaust pipes, one of which is located between the first heating wire and the second heating wire, and the other exhaust pipe is located on the side of the second heating wire away from the first heating wire.

[0012] Technical effects and advantages of the present invention: 1. The plastic bottle of the present invention is placed upside down on the protective limiting mechanism. At this time, the electromagnet in the protective limiting mechanism is energized and causes the magnetic plate to move upward. When the magnetic plate moves upward, the two limiting plates rotate around the fixed axis. The top of the limiting plate rotates downward to contact the inside of the plastic bottle to fix the plastic bottle. When the limiting plate rotates downward, it drives the entire plastic bottle to move downward, so that the bottom end of the plastic bottle contacts the protective plate to seal the inside of the plastic bottle. 2. The present invention is provided with a rotating screw, a moving block, a first electrostatic brush, and a second electrostatic brush. When the servo motor is started, the first electrostatic brush and the second electrostatic brush are driven to rotate, so that the surface of the plastic bottle is electrostatically dusted. When the rotating screw rotates, the moving block is driven to move. When the moving block moves, the protective box is driven to move, thereby making the first electrostatic brush and the second electrostatic brush move, and adjusting the distance between them and the plastic bottle, so that plastic bottles of different sizes can be processed; 3. The present invention is provided with rotating blades, an exhaust pipe, a first heating wire, and an exhaust pipe. When the rotating blades rotate, suction is generated, so suction is generated in the exhaust pipe, and the surface of the plastic bottle is adsorbed again to ensure that the surface of the plastic bottle is clean enough. The gas drawn into the exhaust pipe is filtered through a filter net, and after filtration, it is heated by the first heating wire and the second heating wire, and then blown to the surface of the sprayed plastic bottle through the exhaust pipe to dry it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the overall back structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the internal structure of the plastic bottle of the present invention.

[0016] Figure 4 It is a schematic diagram of the overall structure of the protective limiting mechanism of the present invention.

[0017] Figure 5 It is a schematic diagram of the explosion structure of the protection limiting mechanism of the present invention.

[0018] Figure 6 It is a schematic diagram of the overall structure of the cleaning mechanism of the present invention.

[0019] Figure 7 It is a schematic diagram of the internal structure of the protection box of the present invention.

[0020] Figure 8 It is a schematic diagram of the connection structure between the rotating screw and the moving block of the present invention.

[0021] Fig. 9 It is a schematic diagram of the overall structure of the cleaning and drying mechanism of the present invention.

[0022] The accompanying drawings are marked as follows: 1, fixed base plate; 2, conveyor belt; 3, protective limit mechanism; 301, connecting shaft; 302, protective plate; 303, electromagnet; 304, magnetic plate; 305, limit block; 306, fixed shaft; 307, limit plate; 308, fixed block; 309, connecting rod; 310, spring; 311, conical block; 4, plastic bottle; 5, cleaning mechanism; 501, fixed plate; 502, rotating screw; 503, moving block; 504, limit rod; 505, protective box; 50 6. Servo motor; 507. Rotating shaft; 508. First electrostatic brush; 509. First bevel gear; 510. Second bevel gear; 511. Second electrostatic brush; 6. Cleaning and drying mechanism; 601. Connecting box; 602. Output motor; 603. Output shaft; 604. Rotating blades; 605. Conical cylinder; 606. Connecting pipe; 607. Exhaust pipe; 608. Filter; 609. First heating wire; 610. Second heating wire; 611. Exhaust pipe; 7. Side spray head; 8. Upper spray head. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The spray device based on plastic product processing involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0024] Reference Figure 1 and Figure 2 The present invention provides a spraying device based on plastic product processing, including a fixed base plate 1, a conveyor belt 2 is provided on the side of the fixed base plate 1, a protective limiting mechanism 3 is fixedly connected to the top of the conveyor belt 2, a plastic bottle 4 is movably connected to the top of the protective limiting mechanism 3, a cleaning mechanism 5 is fixedly connected to the side of the fixed base plate 1, a cleaning and drying mechanism 6 is fixedly connected to one side of the fixed base plate 1, an upper spraying head 8 is fixedly connected to the other side of the fixed base plate 1, a side spraying head 7 is provided at the bottom end of the upper spraying head 8, the upper spraying head 8 is located at the top of the plastic bottle 4, the side spraying head 7 is located in the middle of the side of the plastic bottle 4, one side of the cleaning and drying mechanism 6 is located at the side of the plastic bottle 4 to be sprayed, and the other side of the cleaning and drying mechanism 6 is located at the top of the plastic bottle 4 after spraying.

[0025] In the embodiment of the present application, the upper spray head 8 is located at the top of the plastic bottle 4, and the side spray head 7 is located at the side of the plastic bottle 4, so as to ensure the spraying effect on the surface of the plastic bottle 4. The cleaning and drying mechanism 6 can perform vacuum cleaning on the one hand, and dry the cleaned plastic bottle 4 on the other hand, so as to ensure the spraying effect of the plastic bottle 4.

[0026] Reference Figure 3 , Figure 4 as well as Figure 5 The protective limiting mechanism 3 includes a connecting shaft 301 fixedly connected to the top of the conveyor belt 2, a mounting hole is provided inside the connecting shaft 301, an electromagnet 303 is fixedly connected in the mounting hole of the connecting shaft 301, a magnetic plate 304 is provided at the top of the electromagnet 303, both sides of the top of the magnetic plate 304 are movably connected to the limiting plates 307, the limiting plates 307 are movably connected inside with a fixed shaft 306, both sides of the fixed shaft 306 are fixedly connected to the inside of the connecting shaft 301, the limiting plates 307 are at an angle of ten degrees to the vertical direction, the bottom ends of the two limiting plates 307 are provided with avoidance grooves that can cross each other, and the two limiting plates 307 are movably connected inside with a cone The conical block 311 has a connecting rod 309 fixedly connected to the top of the conical block 311, and a fixed block 308 is movably connected to the top of the conical block 311. The fixed block 308 has a groove inside for the connecting rod 309 to move, and the side of the fixed block 308 is fixedly connected to the top of the connecting shaft 301, and the side of the connecting rod 309 is movably connected to a spring 310. The two sides of the magnetic plate 304 are fixedly connected to the limiting blocks 305, and the connecting shaft 301 has a sliding groove inside for the limiting blocks 305 to move. The bottom end of the side of the connecting shaft 301 is fixedly connected to the protective plate 302, and the sides of the two limiting plates 307 facing each other at the bottom are rounded.

[0027] In the embodiment of the present application, the electromagnet 303 is energized and generates a magnetic repulsion force with the magnetic plate 304, so the magnetic plate 304 will move upward, and the limit blocks 305 on both sides of the magnetic plate 304 will move in the slide groove of the connecting shaft 301 to ensure the stability of the magnetic plate 304 when moving. When the magnetic plate 304 moves upward, the limit plate 307 rotates around the fixed axis 306, so the top of the limit plate 307 rotates outward, so the top of the limit plate 307 contacts the inner wall of the plastic bottle part 4, thereby fixing the plastic bottle part 4 and ensuring that the plastic bottle part 4 can rotate as a whole with the protective limit mechanism 3, and the top of the limit plate 307 will drive the plastic bottle part 4 to rotate downward when it rotates downward. At this time, the bottom end of the plastic bottle part 4 and the top of the protective plate 302 are in contact with each other. The two limit plates 307 are in contact with each other at the bottom, and the bottom end of the plastic bottle 4 is sealed. When the limit plate 307 rotates around the fixed axis 306, the bottom end of the limit plate 307 will contact the conical block 311, which will cause the conical block 311 to move upward and compress the conical block 311. Therefore, after the electromagnet 303 is powered off, the spring 310 will reset, thereby resetting the limit plate 307 to avoid the limit plate 307 being unable to reset in time and being unfavorable for removing the plastic bottle 4. The bottom ends of the two limit plates 307 are provided with avoidance grooves that can cross each other. The two limit plates 307 can cross each other at the bottom after rotation. Therefore, the two limit plates 307 do not need to be far apart, saving space, and the sides of the bottom ends of the two limit plates 307 that are separated from each other are provided with rounded corners to facilitate the rotation of the limit plates 307 in the initial stage.

[0028] Reference Figure 6 , Figure 7 as well as Figure 8 The cleaning mechanism 5 includes a fixed plate 501 fixed to the fixed substrate 1, a moving block 503 is movably connected to the bottom end of the fixed plate 501, a rotating screw 502 is threadedly connected to the top end of the moving block 503, a limiting rod 504 is movably connected to the top end of the moving block 503, the top end of the limiting rod 504 is fixedly connected to the bottom end of the fixed plate 501, a protective box 505 is fixedly connected to the bottom end of the moving block 503, a servo motor 506 is fixedly connected to the top end of the protective box 505, a rotating shaft 507 is fixedly connected to the bottom end of the servo motor 506, a first electrostatic brush 508 is fixedly connected to the bottom end of the rotating shaft 507, a first bevel gear 509 is fixedly connected to the side of the first electrostatic brush 508, a second bevel gear 510 is meshed with the side of the first bevel gear 509, and a second electrostatic brush 511 is fixedly connected to the side of the second bevel gear 510 away from the moving block 503.

[0029] In the embodiment of the present application, when the rotating screw 502 rotates, the moving block 503 can drive the protective box 505 to move, thereby adjusting the positions of the first electrostatic brush 508 and the second electrostatic brush 511, and plastic bottles 4 of different sizes can be cleaned. When the moving block 503 moves, it can be limited by the limit rod 504 to avoid slipping. When the rotating shaft 507 rotates, the second bevel gear 510 is driven to rotate through the first bevel gear 509. At this time, the first electrostatic brush 508 and the second electrostatic brush 511 can rotate synchronously. The first electrostatic brush 508 cleans the surface of the plastic bottle 4, and the second electrostatic brush 511 cleans the top of the plastic bottle 4.

[0030] Reference Figure 2 as well as Fig. 9 The cleaning and drying mechanism 6 includes a connection box 601 fixedly connected to the side of the fixed substrate 1, the side of the connection box 601 away from the fixed substrate 1 is fixedly connected to the output motor 602, the side of the output motor 602 close to the connection box 601 is fixedly connected to the output shaft 603, the side of the output shaft 603 away from the output motor 602 is fixedly connected to the rotating blade 604, the side of the rotating blade 604 away from the output motor 602 is provided with a conical cylinder 605, the side of the conical cylinder 605 is fixedly connected to the side of the connection box 601, the side of the conical cylinder 605 away from the rotating blade 604 is fixedly connected to the connecting pipe 606, the connecting pipe 6 06 An exhaust pipe 607 is fixedly connected to the side away from the conical cylinder 605, a filter screen 608 is fixedly connected to the side of the connecting box 601 close to the output shaft 603, a first heating wire 609 is fixedly connected to the middle of the inner side of the connecting box 601, a second heating wire 610 is fixedly connected to the side of the connecting box 601 away from the filter screen 608, an exhaust pipe 611 is fixedly connected to the bottom end of the connecting box 601, and there are two exhaust pipes 611, one exhaust pipe 611 is located between the first heating wire 609 and the second heating wire 610, and the other exhaust pipe 611 is located on the side of the second heating wire 610 away from the first heating wire 609.

[0031] In the embodiment of the present application, suction is generated when the rotating blades 604 rotate, so the exhaust pipe 607 will draw air inward, thereby exhausting and cleaning the surface of the plastic bottle 4 again, absorbing dust, and improving the cleaning effect. The plastic bottle 4 after spraying first moves to the bottom of the first exhaust pipe 611, and the gas sucked into the exhaust pipe 607 is filtered through the filter screen 608 and then discharged into the connection box 601. At this time, it is heated twice by the first heating wire 609 and the second heating wire 610 and then discharged from the exhaust pipe 611 to be dried once. The plastic bottle 4 will move to the bottom of the second exhaust pipe 611, and the gas heated once by the first heating wire 609 will dry the plastic bottle 4 to avoid direct contact with the plastic bottle 4. At this time, the surface of the plastic bottle 4 is not dried and will be damaged.

[0032] The working principle of the present invention is as follows: the plastic bottle 4 is placed upside down on the protective limiting mechanism 3. After placement, the electromagnet 303 in the protective limiting mechanism 3 is energized and generates a magnetic repulsion force with the magnetic plate 304, so the magnetic plate 304 moves upward. When the magnetic plate 304 moves upward, the limiting plate 307 rotates around the fixed axis 306, so the top of the limiting plate 307 rotates outward, so the top of the limiting plate 307 contacts the inner wall of the plastic bottle 4, thereby fixing the plastic bottle 4, ensuring that the plastic bottle 4 can rotate with the protective limiting mechanism 3 as a whole, and the top of the limiting plate 307 will drive the plastic bottle 4 to rotate downward when it rotates downward, at this time, the bottom end of the plastic bottle 4 contacts the top end of the protective plate 302, and the bottom end of the plastic bottle 4 is sealed; When the position of the plastic bottle 4 is fixed, the plastic bottle 4 will rotate as a whole with the protective limiting mechanism 3, and the protective limiting mechanism 3 moves with the conveyor belt 2. When the plastic bottle 4 moves to the position where the cleaning mechanism 5 is located, the servo motor 506 in the cleaning mechanism 5 is started. After the servo motor 506 is started, it drives the rotating shaft 507 to rotate. When the rotating shaft 507 rotates, it drives the second bevel gear 510 to rotate through the first bevel gear 509. At this time, the first electrostatic brush 508 and the second electrostatic brush 511 can rotate synchronously. The first electrostatic brush 508 cleans the surface of the plastic bottle 4, and the second electrostatic brush 511 cleans the top of the plastic bottle 4; When cleaning plastic bottles 4 of different sizes, the rotating screw 502 can be rotated, and the rotating screw 502 rotates to move the moving block 503, and the moving block 503 moves to drive the protection box 505 to move, thereby moving the first electrostatic brush 508 and the second electrostatic brush 511 to adapt to the plastic bottles 4 of different sizes; After the plastic bottle 4 is cleaned by the cleaning mechanism 5, the output motor 602 is started and the output shaft 603 is rotated, and the output shaft 603 drives the rotating blade 604 to rotate. When the rotating blade 604 rotates, suction is generated, so the exhaust pipe 607 exhausts air inward, thereby exhausting and cleaning the surface of the plastic bottle 4 again to absorb dust. The plastic bottle 4 treated by the cleaning mechanism 5 is moved to the location of the side spray head 7 and the upper spray head 8 for spraying. After spraying, the plastic bottle 4 first moves to the bottom of the first exhaust pipe 611, and the gas sucked into the exhaust pipe 607 is filtered by the filter 608 and then discharged into the connection box 601. At this time, it is discharged from the exhaust pipe 611 after being heated twice by the first heating wire 609 and the second heating wire 610, and is dried once. The plastic bottle 4 will move to the bottom of the second exhaust pipe 611, and the gas heated once by the first heating wire 609 will dry the plastic bottle 4. After drying, the electromagnet 303 is powered off, and the limit plate 307 is reset at this time, so that the plastic bottle 4 is removed.

[0033] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spraying device for processing plastic products, comprising a fixed substrate (1), characterized in that: A conveyor belt (2) is provided on the side of the fixed base plate (1); a protective limiting mechanism (3) is fixedly connected to the top of the conveyor belt (2); a plastic bottle (4) is movably connected to the top of the protective limiting mechanism (3); a cleaning mechanism (5) is fixedly connected to the side of the fixed base plate (1); a cleaning and drying mechanism (6) is fixedly connected to one side of the fixed base plate (1); an upper spray head (8) is fixedly connected to the other side of the fixed base plate (1); and a side spray head (7) is provided at the bottom of the upper spray head (8); The protective limiting mechanism (3) comprises a connecting shaft (301) fixedly connected to the top end of the conveyor belt (2); a mounting hole is provided inside the connecting shaft (301); an electromagnet (303) is fixedly connected inside the mounting hole of the connecting shaft (301); a magnetic plate (304) is provided at the top end of the electromagnet (303); both sides of the top end of the magnetic plate (304) are movably connected to limiting plates (307); a fixed shaft (306) is movably connected inside the limiting plate (307); both sides of the fixed shaft (306) are fixedly connected to the inside of the connecting shaft (301); the limiting plates (307) form an angle of ten degrees with the vertical direction; and the bottom ends of the two limiting plates (307) are provided with avoiding grooves that can cross each other.

2. A spraying device based on plastic product processing according to claim 1, characterized in that: The upper spray head (8) is located at the top of the plastic bottle (4), the side spray head (7) is located at the middle of the side of the plastic bottle (4), one side of the cleaning and drying mechanism (6) is located at the side of the plastic bottle (4) to be sprayed, and the other side of the cleaning and drying mechanism (6) is located at the top of the plastic bottle (4) after spraying.

3. A spraying device based on plastic product processing according to claim 1, characterized in that: The two limit plates (307) are internally movably connected with a conical block (311), the top of the conical block (311) is fixedly connected with a connecting rod (309), the top of the conical block (311) is movably connected with a fixed block (308), the inside of the fixed block (308) is provided with a avoiding groove for the connecting rod (309) to move, the side of the fixed block (308) is fixedly connected to the top of the connecting shaft (301), and the side of the connecting rod (309) is movably connected with a spring (310).

4. A spraying device based on plastic product processing according to claim 3, characterized in that: Both sides of the magnetic plate (304) are fixedly connected to limit blocks (305), a sliding groove for allowing the limit blocks (305) to move is provided inside the connecting shaft (301), a protective plate (302) is fixedly connected to the bottom end of the side of the connecting shaft (301), and rounded corners are provided on the sides of the bottom ends of the two limit plates (307) that are away from each other.

5. A spraying device based on plastic product processing according to claim 1, characterized in that: The cleaning mechanism (5) comprises a fixed plate (501) fixed to a fixed base plate (1); the bottom end of the fixed plate (501) is movably connected to a moving block (503); the top end of the moving block (503) is threadedly connected to a rotating screw (502); the top end of the moving block (503) is movably connected to a limiting rod (504); the top end of the limiting rod (504) is fixedly connected to the bottom end of the fixed plate (501).

6. A spraying device based on plastic product processing according to claim 5, characterized in that: The bottom end of the moving block (503) is fixedly connected to a protection box (505), the top end of the protection box (505) is fixedly connected to a servo motor (506), the bottom end of the servo motor (506) is fixedly connected to a rotating shaft (507), the bottom end of the rotating shaft (507) is fixedly connected to a first electrostatic brush (508), the side of the first electrostatic brush (508) is fixedly connected to a first bevel gear (509), the side of the first bevel gear (509) is meshed with a second bevel gear (510), and the side of the second bevel gear (510) away from the moving block (503) is fixedly connected to a second electrostatic brush (511).

7. A spraying device based on plastic product processing according to claim 1, characterized in that: The cleaning and drying mechanism (6) comprises a connection box (601) fixedly connected to a side of the fixed base plate (1); an output motor (602) is fixedly connected to the side of the connection box (601) away from the fixed base plate (1); an output shaft (603) is fixedly connected to the side of the output motor (602) close to the connection box (601); a rotating blade (604) is fixedly connected to the side of the output shaft (603) away from the output motor (602); a conical cylinder (605) is provided on the side of the rotating blade (604) away from the output motor (602); a side of the conical cylinder (605) is fixedly connected to the side of the connection box (601); a connecting pipe (606) is fixedly connected to the side of the conical cylinder (605) away from the rotating blade (604); and an exhaust pipe (607) is fixedly connected to the side of the connecting pipe (606) away from the conical cylinder (605).

8. A spraying device based on plastic product processing according to claim 7, characterized in that: A filter screen (608) is fixedly connected to the side of the connection box (601) close to the output shaft (603), a first heating wire (609) is fixedly connected to the middle of the inner side of the connection box (601), a second heating wire (610) is fixedly connected to the side of the connection box (601) away from the filter screen (608), and an exhaust pipe (611) is fixedly connected to the bottom end of the connection box (601), and there are two exhaust pipes (611), one of which is located between the first heating wire (609) and the second heating wire (610), and the other of which is located on the side of the second heating wire (610) away from the first heating wire (609).

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