Fastener production spraying device convenient to maintain

Abstract

The utility model relates to the technical field of fasteners, and discloses a convenient-to-maintain spraying device for fastener production, which comprises supporting legs, and a spraying box body is fixedly mounted at the tops of the supporting legs. A self-adaptive fastener fixing part is formed by arranging a rotary containing plate, a sliding groove, a sliding block, a spring and an arc-shaped limiting block, adjustment is carried out according to fasteners of different sizes and shapes, further, a lead screw is driven by a second motor to rotate, a movable block and a spraying box at the bottom of the movable block can horizontally move along the interior of a spraying box body, and the spraying effect is improved. And meanwhile, first spraying heads evenly arranged at the bottom of the spraying box at equal intervals ensure that paint is evenly distributed on the surface of the fastener, second spraying heads slide in an adjusting groove of a supporting plate through a connecting sliding block driven by an air cylinder, the spraying flexibility and the covering capacity on detail parts are enhanced, and the spraying effect is improved. And the effect of improving the efficiency and quality of fastener spraying operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a spraying device for fastener production which is easy to maintain. Background Art

[0002] Fasteners are characterized by a wide variety of varieties and specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. Therefore, some people call a type of fasteners with national standards standard fasteners, or simply standard parts. They are a type of mechanical parts used for fastening connections and are widely used. They are widely used in various industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. They are the most widely used mechanical basic parts.

[0003] Currently, many fasteners require a spray coating to enhance their aesthetics and, more importantly, provide them with necessary protection. However, achieving comprehensive and uniform coating of fasteners of varying shapes is often difficult, potentially leading to uneven product quality. Furthermore, the process of spraying the fastener surface produces a large amount of paint and other toxic gases, which are released into the air, polluting the environment and potentially threatening the health of nearby personnel. Therefore, a spray coating device for fastener production that is easy to maintain is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a spraying device for fastener production that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a spraying device for fastener production that is easy to maintain, comprising support legs, a spray box body fixedly mounted on the top of the support legs, a control panel fixedly mounted on the outer wall of the spray box body, which is convenient for the operator to input various instructions for the device, a protective door is hingedly provided on the front of the spray box body, and a pull handle is fixedly mounted on the front of the protective door, making the opening and closing operation more convenient, a paint box is provided on one outer wall of the spray box body, fixed plates are fixedly mounted on both sides of the paint box, and fixed columns are movably passed through the outer wall of the fixed plate for fixing the spray box body and the paint box; an adjustable spray purification component, the adjustable spray purification component is arranged inside and at the rear of the spray box body; the adjustable spray purification component comprises: an adjustable spraying position, the adjustable spraying position is arranged inside the spray box body; a purification position, the purification position is arranged inside and at the rear of the spray box body, and the purification position is located behind the adjustable spraying position.

[0006] Preferably, the adjustment spraying part includes: a support platform, which is fixedly mounted on the bottom of the inner wall of the spray box; a second motor, which is arranged on the outer wall of the other side of the spray box; a delivery pump, which is arranged inside the paint box; a workbench is fixedly mounted on the top of the support platform, a mounting groove is provided on the top of the workbench, and a motor 1 is fixedly mounted inside the mounting groove, and a rotating placement plate is provided at the output end of the motor 1, and a slide groove is provided on the top of the rotating placement plate, and there are four groups in total.

[0007] The support platform provides solid support for the entire spraying process.

[0008] A motor is provided to drive the rotating placement plate to rotate slowly, thereby ensuring that the fasteners can be evenly painted during the spraying process.

[0009] Preferably, a slider is slidably connected to the interior of the slide, a spring is fixedly mounted on one outer wall of the slider, and the other end of the spring is fixedly mounted on the inner wall of the slide, and an arc-shaped limit block is fixedly mounted on the top of the slider.

[0010] A slide groove is provided, in which a slider supported by a spring is slidably connected, and an arc-shaped limit block is fixedly installed on the top of the slider to fix fasteners of different sizes.

[0011] Preferably, a screw is provided at the output end of the motor 2, and the screw is located inside the spray box. A movable block is movably sleeved on the outer wall of the screw. A connecting pipe is provided on one side of the delivery pump, and the connecting pipe is movable through the paint box and the spray box in turn, and extends to the inside of the spray box. The other end of the connecting pipe is connected to a connecting hose 1.

[0012] By providing a second motor to drive the screw to rotate, the moving block and the spray box at the bottom thereof are driven to move horizontally along the inside of the spray box, thereby achieving comprehensive spraying of the fasteners.

[0013] Preferably, the other end of the connecting hose 1 is connected to a spray box, and the spray box is fixedly installed on the bottom of the moving block. The bottom of the spray box is evenly and equidistantly connected to a spray head 1. A support block is provided on the other side of the spray box, and the support block is fixedly installed on the inner wall of the spray box. The other side of the spray box is connected to a connecting hose 2, and the connecting hose 2 movably passes through the support block and extends above the workbench.

[0014] By providing a spray box, the bottom of the spray box is evenly connected to the spray head 1 at equal distances, so that uniform spraying over a large area is achieved.

[0015] Preferably, a support plate is provided below the second connecting hose, and the support plate is fixedly mounted on the top of the workbench, an adjustment groove is provided on the outer wall of the support plate, a cylinder is fixedly mounted on the top of the support plate, the connecting end of the cylinder is fixedly connected to a connecting rod, and the connecting rod movably passes through the support plate and extends to the inside of the adjustment groove, a connecting slider is fixedly mounted on the bottom of the connecting rod, and the connecting slider is slidably connected to the adjustment groove.

[0016] By providing a cylinder, the connecting slider is driven to slide in the adjustment groove of the support plate, so that precise spraying of the detailed parts of the fastener can be achieved.

[0017] Preferably, the other end of the connecting hose 2 is movable through one side of the connecting slider and extends to the outer wall of the other side of the connecting slider. The other end of the connecting hose 2 is connected to the spray head 2, and the spray head 2 is fixedly installed on the outer wall of the other side of the connecting slider.

[0018] Preferably, the purification part includes: a purification box, which is fixedly installed on the back of the spray box; a fan is fixedly installed on the top of the purification box, and an exhaust pipe is provided on the outer wall of the fan, and the exhaust pipe is movable through the spray box and extends to the interior of the spray box. A card slot is provided on the outer wall of the purification box, and an adsorption plate is provided inside the card slot through card connection, and a U-shaped handle is fixedly installed on the outer wall of the adsorption plate, and discharge holes are evenly spaced on the outer wall of the purification box.

[0019] By setting up a fan and cooperating with the exhaust pipe, the waste gas generated during the spraying process is sucked into the purification box, filtered and purified by the adsorption plate, and then discharged through the exhaust hole.

[0020] The card slot is provided to facilitate the replacement and maintenance of the adsorption plate. At the same time, a U-shaped handle is fixedly installed on the outer wall of the adsorption plate, making the replacement operation simpler and faster.

[0021] The utility model provides a spraying device for fastener production that is easy to maintain and has the following beneficial effects:

[0022] (1) The utility model is provided with a rotating placement plate, a slide groove and a slider, a spring and an arc-shaped limit block to form an adaptive fastener fixing part, which is adjusted according to fasteners of different sizes and shapes to ensure its stability and accuracy during the spraying process. Furthermore, the second motor drives the screw to rotate, so that the moving block and the spray box at the bottom can move horizontally along the inside of the spray box, thereby achieving accurate spraying of different positions of the fastener. At the same time, the spray head 1 evenly and equidistantly arranged at the bottom of the spray box ensures the uniform distribution of paint on the surface of the fastener. The spray head 2 slides in the adjustment groove of the support plate through the connecting slider driven by the cylinder, which enhances the flexibility of spraying and the coverage of detailed parts, thereby achieving the effect of improving the efficiency and quality of fastener spraying operations.

[0023] (2) The utility model is provided with a fan and an exhaust pipe to suck the waste gas inside the spray box into the purification box, and after being filtered and purified by the adsorption plate, it is discharged through the discharge hole, effectively reducing the pollution to the environment caused by the spraying operation. At the same time, the adsorption plate is connected to the purification box through a card slot, making the replacement and cleaning operations simple and quick, thereby improving the purification effect and reducing the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a rear view of the structure of a spraying device for fastener production that is easy to maintain in the utility model;

[0026] Figure 3 This is a bottom view of the spraying structure of a spraying device for fastener production that is easy to maintain in the utility model;

[0027] Figure 4 The utility model is a side view of the purification structure of a spray device for fastener production that is easy to maintain.

[0028] In the figure: 1 support leg, 2 spray box, 3 control panel, 4 protective door, 5 pull handle, 6 paint box, 61 fixed plate, 7 adjustment spray purification component, 71 adjustment spray position, 711 support table, 712 workbench, 713 motor 1, 714 rotating placement plate, 715 slide, 716 slider, 717 spring, 718 arc limit block, 719 motor 2, 7110 screw rod, 7111 moving block, 7112 delivery pump, 7113 connecting pipe, 7114 connecting hose 1, 7115 spray box, 7116 spray head 1, 7117 support block, 7118 connecting hose 2, 7119 support plate, 7120 adjustment slot, 7121 cylinder, 7122 connecting slider, 7123 spray head 2, 72 purification part, 721 purification box, 722 fan, 723 exhaust pipe, 724 slot, 725 adsorption plate, 726 U-shaped handle, 727 discharge hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] Example 1:

[0032] The preferred embodiment of the spraying device for fastener production provided by the present invention is easy to maintain. Figures 1-4As shown: a spraying device for fastener production that is easy to maintain, includes a support leg 1, a spray box 2 is fixedly installed on the top of the support leg 1, and a control panel 3 is fixedly installed on the outer wall of the spray box 2, which is convenient for the operator to input various instructions to the device, and a protective door 4 is hingedly provided on the front of the spray box 2, and a pull handle 5 is fixedly installed on the front of the protective door 4, which makes the opening and closing operation more convenient, and a paint box 6 is provided on one side of the outer wall of the spray box 2, and fixed plates 61 are fixedly installed on both sides of the paint box 6, and the outer wall of the fixed plate 61 is movably penetrated by a fixed column for fixing the spray box 2 and the paint box 6; an adjustment spray purification component 7, the adjustment spray purification component 7 is arranged inside and at the rear of the spray box 2; the adjustment spray purification component 7 includes: an adjustment spraying part 71, the adjustment spraying part 71 is arranged inside the spray box 2; a purification part 72, the purification part 72 is arranged inside and at the rear of the spray box 2, and the purification part 72 is located behind the adjustment spraying part 71.

[0033] The adjustment spraying part 71 includes: a support platform 711, which is fixedly installed on the bottom of the inner wall of the spray box 2; a motor 2 719, which is arranged on the outer wall of the other side of the spray box 2; a delivery pump 7112, which is arranged inside the paint box 6; a workbench 712 is fixedly installed on the top of the support platform 711, and a mounting groove is provided on the top of the workbench 712, and a motor 1 713 is fixedly installed inside the mounting groove, and a rotating placement plate 714 is provided at the output end of the motor 1 713, and a slide groove 715 is provided on the top of the rotating placement plate 714, and there are four groups in total.

[0034] The support platform 711 is provided to provide a solid support for the entire spraying operation.

[0035] By providing a motor 713, the rotating placement plate 714 is driven to rotate slowly, ensuring that the fasteners can be evenly painted during the spraying process.

[0036] The inner sliding connection of the slide groove 715 is a slider 716 , and a spring 717 is fixedly installed on the outer wall of one side of the slider 716 , and the other end of the spring 717 is fixedly installed on the inner wall of the slide groove 715 , and an arc-shaped limit block 718 is fixedly installed on the top of the slider 716 .

[0037] A slide groove 715 is provided, in which a slider 716 supported by a spring 717 is slidably connected. An arc-shaped limit block 718 is fixedly installed on the top of the slider 716 to fix fasteners of different sizes.

[0038] A screw rod 7110 is provided at the output end of motor 2 719, and the screw rod 7110 is located inside the spray box 2. A movable block 7111 is movably sleeved on the outer wall of the screw rod 7110. A connecting pipe 7113 is provided on one side of the delivery pump 7112, and the connecting pipe 7113 moves through the paint box 6 and the spray box 2 in sequence, and extends to the interior of the spray box 2. The other end of the connecting pipe 7113 is connected to a connecting hose 1 7114.

[0039] By providing a second motor 719 to drive the screw rod 7110 to rotate, the moving block 7111 and the spray box 7115 at the bottom thereof are driven to move horizontally along the inside of the spray box 2, thereby achieving comprehensive spraying of the fasteners.

[0040] The other end of the connecting hose 7114 is connected to a spray box 7115, and the spray box 7115 is fixedly installed at the bottom of the moving block 7111. The bottom of the spray box 7115 is evenly and equidistantly connected to the spray head 7116. The other side of the spray box 7115 is provided with a support block 7117, and the support block 7117 is fixedly installed on the inner wall of the spray box 2. The other side of the spray box 7115 is connected to a connecting hose 2 7118, and the connecting hose 2 7118 is movable through the support block 7117 and extends to the top of the workbench 712.

[0041] By providing a spray box 7115, the bottom of the spray box 7115 is evenly and equidistantly connected to the spray head 7116, thereby achieving uniform spraying over a large area.

[0042] A support plate 7119 is provided below the connecting hose 7118, and the support plate 7119 is fixedly installed on the top of the workbench 712. An adjustment groove 7120 is provided on the outer wall of the support plate 7119. A cylinder 7121 is fixedly installed on the top of the support plate 7119. The connecting end of the cylinder 7121 is fixedly connected to a connecting rod, and the connecting rod movably passes through the support plate 7119 and extends to the inside of the adjusting groove 7120. A connecting slider 7122 is fixedly installed on the bottom of the connecting rod, and the connecting slider 7122 is slidably connected to the adjusting groove 7120.

[0043] By providing a cylinder 7121, the connecting slider 7122 is driven to slide in the adjustment groove 7120 of the support plate 7119, thereby achieving precise spraying of the detailed parts of the fastener.

[0044] The other end of the connecting hose 2 7118 is movable through one side of the connecting slider 7122 and extends to the outer wall of the other side of the connecting slider 7122. The other end of the connecting hose 2 7118 is connected to the spray head 2 7123, and the spray head 2 7123 is fixedly installed on the outer wall of the other side of the connecting slider 7122.

[0045] Furthermore, this embodiment forms an adaptive fastener fixing part by providing a rotating placement plate 714, a slide groove 715 and a slider 716, a spring 717 and an arc-shaped limit block 718, which can be adjusted according to fasteners of different sizes and shapes to ensure its stability and accuracy during the spraying process. Furthermore, the motor 2 719 drives the screw rod 7110 to rotate, so that the moving block 7111 and the spray box 7115 at the bottom can move horizontally along the inside of the spray box 2, thereby realizing precise spraying of different positions of the fastener. At the same time, the spray head 1 7116 evenly arranged at equal distances at the bottom of the spray box 7115 ensures the uniform distribution of paint on the surface of the fastener. The spray head 2 7123 slides in the adjustment groove 7120 of the support plate 7119 through the connecting slider 7122 driven by the cylinder 7121, thereby enhancing the flexibility of spraying and the ability to cover detailed parts.

[0046] Example 2:

[0047] On the basis of the first embodiment, the present invention provides a preferred embodiment of a spraying device for fastener production that is easy to maintain. Figures 1-4 As shown: the purification part 72 includes: a purification box 721, which is fixedly installed on the back of the spray box 2; a fan 722 is fixedly installed on the top of the purification box 721, and an exhaust pipe 723 is provided on the outer wall of the fan 722, and the exhaust pipe 723 is movable through the spray box 2 and extends to the interior of the spray box 2. A card slot 724 is provided on the outer wall of the purification box 721, and an adsorption plate 725 is provided inside the card slot 724 through card connection. A U-shaped handle 726 is fixedly installed on the outer wall of the adsorption plate 725, and discharge holes 727 are evenly spaced on the outer wall of the purification box 721.

[0048] The exhaust gas generated during the spraying process is sucked into the purification box 721 by the fan 722 in conjunction with the exhaust pipe 723 , and is filtered and purified by the adsorption plate 725 before being discharged through the exhaust hole 727 .

[0049] The card slot 724 is provided to facilitate replacement and maintenance of the adsorption plate 725. At the same time, a U-shaped handle 726 is fixedly installed on the outer wall of the adsorption plate 725, making the replacement operation simpler and faster.

[0050] Furthermore, this embodiment is provided with a fan 722 and an exhaust pipe 723 to suck the exhaust gas inside the spray box 2 into the purification box 721, and after filtering and purification by the adsorption plate 725, it is discharged through the exhaust hole 727, thereby effectively reducing the pollution of the spraying operation to the environment. At the same time, the adsorption plate 725 is connected to the purification box 721 through the card slot 724, making the replacement and cleaning operations simple and quick.

[0051] When in use, first, the operator sets the spraying parameters through the control panel 3, then opens the cover of the paint box 6 and pours the required paint into it, then places the fastener to be sprayed on the rotating placement plate 714 and fixes it with the arc limit block 718, then closes the protective door 4, further starts the motor 1 713 and the motor 2 719, the motor 1 713 drives the rotating placement plate 714 to rotate so that the fastener is evenly sprayed, the motor 2 719 drives the moving block 7111 to move along the screw rod 7110, driving the moving block 7111 and the spray box 7115 at the bottom thereof to move horizontally along the inside of the spray box 2, to achieve comprehensive spraying of the fasteners, the spray head 1 7116 at the bottom of the spray box 7115 is responsible for the main spraying task, while the connecting hose 2 7118 and the spray head 2 7123 are The connecting slider 7122 driven by the cylinder 7121 slides in the adjustment groove 7120 of the support plate 7119 to supplement the spraying of the details of the fasteners. At the same time, the fan 722 is started and the exhaust gas inside the spray box 2 is sucked into the purification box 721 through the exhaust pipe 723. After the exhaust gas enters the purification box 721, it is filtered and purified by the adsorption plate 725 to remove harmful substances. The purified exhaust gas is discharged through the exhaust holes 727 evenly spaced on the outer wall of the purification box 721 to reduce pollution to the environment. Furthermore, after the entire spraying process is completed, the operator can turn off the motor and fan through the control panel 3, then open the protective door 4, take out the sprayed fasteners, and at the same time, take out the adsorption plate 725 from the slot 724 through the U-shaped handle 726 for replacement or cleaning to ensure the smooth progress of the next spraying operation.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spraying device for fastener production that is easy to maintain, comprising a support leg (1), characterized in that: A spray box (2) is fixedly mounted on the top of the support leg (1), a control panel (3) is fixedly mounted on the outer wall of the spray box (2), a protective door (4) is hingedly mounted on the front of the spray box (2), a pull handle (5) is fixedly mounted on the front of the protective door (4), a paint box (6) is mounted on one side of the outer wall of the spray box (2), fixed plates (61) are fixedly mounted on both sides of the paint box (6), and a fixed column is movably penetrated through the outer wall of the fixed plate (61) for fixing the spray box (2) and the paint box (6); An adjustable spray purification component (7), wherein the adjustable spray purification component (7) is arranged inside and behind the spray box (2); The regulating spray purification component (7) includes: An adjustment spraying portion (71), wherein the adjustment spraying portion (71) is arranged inside the spraying box (2); The purification part (72) is arranged inside and behind the spray box (2), and the purification part (72) is located behind the regulating spray part (71).

2. The easy-to-maintain spraying device for fastener production according to claim 1, characterized in that: The regulating spraying part (71) includes: A support platform (711), wherein the support platform (711) is fixedly mounted on the bottom of the inner wall of the spray box (2); Motor 2 (719), wherein the motor 2 (719) is arranged on the other outer wall of the spray box (2); a delivery pump (7112), the delivery pump (7112) being arranged inside the paint box (6); A workbench (712) is fixedly installed on the top of the support platform (711), a mounting groove is provided on the top of the workbench (712), and a motor 1 (713) is fixedly installed inside the mounting groove. A rotating placement plate (714) is provided at the output end of the motor 1 (713), and a sliding groove (715) is provided on the top of the rotating placement plate (714), and there are four groups of sliding grooves in total.

3. The easy-to-maintain spraying device for fastener production according to claim 2, characterized in that: The slide groove (715) is slidably connected to a slider (716), a spring (717) is fixedly installed on the outer wall of one side of the slider (716), and the other end of the spring (717) is fixedly installed on the inner wall of the slide groove (715), and an arc-shaped limit block (718) is fixedly installed on the top of the slider (716).

4. The easy-to-maintain spraying device for fastener production according to claim 3, characterized in that: The output end of the second motor (719) is provided with a screw rod (7110), and the screw rod (7110) is located inside the spray box (2). The outer wall of the screw rod (7110) is movably sleeved with a moving block (7111). One side of the delivery pump (7112) is connected to a connecting pipe (7113), and the connecting pipe (7113) is movably passed through the paint box (6) and the spray box (2) in sequence and extends to the inside of the spray box (2). The other end of the connecting pipe (7113) is connected to a connecting hose 1 (7114).

5. The spraying device for fastener production that is easy to maintain according to claim 4, characterized in that: The other end of the connecting hose 1 (7114) is connected to a spray box (7115), and the spray box (7115) is fixedly mounted on the bottom of the moving block (7111). The bottom of the spray box (7115) is evenly and equidistantly connected to a spray head 1 (7116). The other side of the spray box (7115) is provided with a support block (7117), and the support block (7117) is fixedly mounted on the inner wall of the spray box (2). The other side of the spray box (7115) is connected to a connecting hose 2 (7118), and the connecting hose 2 (7118) movably passes through the support block (7117) and extends to the top of the workbench (712).

6. The easy-to-maintain spraying device for fastener production according to claim 5, characterized in that: A support plate (7119) is provided below the second connecting hose (7118), and the support plate (7119) is fixedly installed on the top of the workbench (712). An adjustment groove (7120) is provided on the outer wall of the support plate (7119). A cylinder (7121) is fixedly installed on the top of the support plate (7119). The connecting end of the cylinder (7121) is fixedly connected to a connecting rod, and the connecting rod movably passes through the support plate (7119) and extends to the inside of the adjustment groove (7120). A connecting slider (7122) is fixedly installed on the bottom of the connecting rod, and the connecting slider (7122) is slidably connected to the adjustment groove (7120).

7. The easy-to-maintain spraying device for fastener production according to claim 6, characterized in that: The other end of the second connecting hose (7118) is movable through one side of the connecting slider (7122) and extends to the outer wall of the other side of the connecting slider (7122). The other end of the second connecting hose (7118) is connected to the second spray head (7123), and the second spray head (7123) is fixedly installed on the outer wall of the other side of the connecting slider (7122).

8. The easy-to-maintain spraying device for fastener production according to claim 1, characterized in that: The purification part (72) includes: A purification box (721), wherein the purification box (721) is fixedly mounted on the back of the spray box (2); A fan (722) is fixedly installed on the top of the purification box (721), and an exhaust pipe (723) is provided on the outer wall of the fan (722), and the exhaust pipe (723) is movable through the spray box (2) and extends to the interior of the spray box (2). A card slot (724) is provided on the outer wall of the purification box (721), and an adsorption plate (725) is provided inside the card slot (724) by card connection. A U-shaped handle (726) is fixedly installed on the outer wall of the adsorption plate (725), and discharge holes (727) are evenly and equidistantly provided on the outer wall of the purification box (721).

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