A pretreatment device for manufacturing automobile plastic parts

Abstract

The invention relates to the technical field of automobile plastic part pretreatment devices, and discloses an automobile plastic part manufacturing pretreatment device, comprising a treatment box, a top cover, and a cleaning net slot, wherein the top cover is clamped on the top surface of the treatment box, the cleaning net slot is fixedly connected to the middle part of the inner wall of the treatment box, a cavity is opened inside the top cover, a circulation filter component is arranged in the cavity of the top cover, a replacement component is arranged on the side wall of the top cover, and a cleaning component in contact with the cleaning net slot is arranged below the top cover. By setting the cavity opened inside the top cover, the cleaning liquid can be circulated and sprinkled downward from the cavity into the treatment box, and the activated carbon cotton arranged in the cavity can filter the odor and adsorb impurities of the circulating cleaning liquid each time it falls through the cavity, so as to avoid the odor of the cleaning liquid inside the treatment box from spreading when the top cover on the top of the treatment box is opened, and at the same time improve the utilization rate of the cleaning liquid, so as to optimize the processing environment.

Description

Technical Field

[0001] The invention relates to the technical field of automobile plastic part pretreatment devices, in particular to an automobile plastic part manufacturing pretreatment device. Background Art

[0002] Automotive plastic parts are a kind of polymer automotive material. This material has the characteristics of light weight and high strength. It is a variety of plastic parts used in automobile manufacturing. In the production process of automotive plastic parts, in order to prevent plastic parts from being damaged by factors such as corrosion, wear and ultraviolet rays, increase the service life of plastic parts, and ensure that plastic parts are tightly connected with other parts to make the entire automobile structure more stable and meet the personalized needs of consumers, spraying, bonding and other processes are required. However, before spraying and bonding, the surface of automotive plastic parts needs to be degreased and pre-treated to remove oil, grease and other contaminants on the surface of plastic parts to ensure that subsequent processing steps can proceed smoothly and ensure the long-term stability and reliability of the parts after spraying or bonding.

[0003] There are two commonly used degreasing methods: organic solvent cleaning and chemical cleaning. Organic solvents can be isopropyl alcohol or alcohol that are less harmful to the environment and human body, and benzene and ketone solvents can also be used for cleaning. The construction method generally adopts manual scrubbing, immersion washing, etc., because of its low investment and simple construction, it is commonly used in some small-scale plastic parts coating lines. Chemical solution cleaning uses chemical degreasing liquid for treatment. The advantages are no volatile organic compound emissions, less manual participation, and high safety. It is commonly used in automatic assembly lines with large production capacity. The current pretreatment device cannot circulate and filter the cleaning liquid when processing workpieces, which will cause the cleaning liquid after long-term use to have certain impurities floating on the page, which reduces the cleaning effect. At the same time, it will also have a certain irritating odor that affects the processing environment.

[0004] Therefore, a pretreatment device for manufacturing automobile plastic parts is proposed. Summary of the invention

[0005] The object of the present invention is to provide a pretreatment device for manufacturing automobile plastic parts to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pretreatment device for automobile plastic parts manufacturing, comprising a treatment box, a top cover, and a cleaning net slot, wherein the top cover is snapped onto the top surface of the treatment box, the cleaning net slot is fixedly connected to the middle part of the inner wall of the treatment box, a cavity is opened inside the top cover, a circulating filter assembly is arranged in the cavity of the top cover, a replacement assembly is arranged on the side wall of the top cover, and a cleaning assembly in contact with the cleaning net slot is arranged below the top cover.

[0007] Furthermore, the circulating filtration component includes activated carbon filter cotton, the outer surface of the activated carbon filter cotton is located in the middle of the cavity of the top cover, the bottom surface of the top cover is provided with a plurality of water outlets, and the water outlets are located above the cleaning net slot, the top surface of the top cover is fixedly connected with two groups of drain pipes, the bottom surface of the drain pipe is connected with the cavity of the top cover, the top surface of the drain pipe is connected with a water inlet pipe, the side wall of the treatment box is connected with a water pump through a straight pipe, and a hose is connected between the treatment box, the water pump and the water inlet pipe.

[0008] Furthermore, the replacement component includes a support block, which is rectangularly distributed on the side wall of the top cover, and a winding shaft is rotatably connected between two adjacent support blocks, wherein the outer surface of one of the support blocks is fixedly connected to a winding motor, and the output end of the winding motor is fixedly connected to the winding shaft, and the side wall of the top cover is provided with a conveying port, and the outer surfaces of both ends of the activated carbon filter cotton are tightly fitted with the inner wall of the conveying port, and the two ends of the activated carbon filter cotton are rolled up on the outer surface of the winding shaft, and the inner wall of the cavity of the top cover is provided with equidistantly distributed shrinkage grooves, and scrapers are provided on both sides of the opening of the conveying port, one side of the scraper is tightly fitted with the surface of the activated carbon filter cotton, and the other side of the scraper is opposite to the shrinkage groove, and a support rod fixed to the scraper surface is inserted into the inner wall of the opening of the shrinkage groove, and an extrusion spring is sleeved on the outer surface of the support rod, one end of the extrusion spring is fixedly connected to the end face of the scraper, and the other end of the extrusion spring is fixedly connected to the inner wall of the cavity of the top cover.

[0009] Furthermore, the cleaning component includes a slide rail fixedly connected to the inside of the processing box, and the cleaning component also includes an electric motor fixedly connected to the outside of the processing box, the output end of the electric motor is fixedly connected to a reciprocating threaded rod rotating on the inner wall of the slide rail, the outer surface of the reciprocating threaded rod is threadedly connected to a guide sleeve slidably connected to the inner wall of the slide rail, the outer surface of the guide sleeve is fixedly connected to a stabilizing frame, the end of the stabilizing frame is fixedly connected to a hydraulic rod, the telescopic end of the hydraulic rod is provided with a stabilizing disk, the outer surface of the stabilizing disk is in contact with the inner wall of the slot of the cleaning net slot, and the bottom surface of the stabilizing disk is fixedly connected to a plurality of cleaning brushes.

[0010] Furthermore, the cleaning assembly also includes a bearing ring, the top inner wall of the bearing ring is fixedly connected to the outer surface of the bottom end of the telescopic end of the hydraulic rod, and a support bolt is fixedly connected to the center of the top surface of the stabilizing disk, and the top end of the support bolt is fixedly connected to the bottom inner wall of the bearing ring.

[0011] Furthermore, the guide sleeve is in a mountain shape.

[0012] Furthermore, ultraviolet lamp tubes are arranged on both sides of the inner wall of the processing box, and a light-transmitting box is arranged outside the ultraviolet lamp tubes.

[0013] Furthermore, the hose is connected to the water inlet pipe by threads.

[0014] Furthermore, the circulation filter assembly also includes a guide frame fixed at both ends of the top cover cavity, and the outer surfaces on both sides of the activated carbon filter cotton are tightly fitted with the grooves of the guide frame.

[0015] Furthermore, an installation opening is opened on the outer surface of the processing box corresponding to the light-transmitting box, and clamping plates are fixedly connected to both sides of the inner wall of the processing box. The end of the light-transmitting box is inserted into the inner wall of the installation opening, and the side wall of the light-transmitting box is slidably connected to the clamping plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting the cavity inside the top cover, the cleaning liquid can be circulated and sprinkled downward from the cavity into the processing box. In addition, the activated carbon cotton set in the cavity can filter the odor and absorb impurities of the circulating cleaning liquid every time it falls through the cavity, so as to avoid the odor of the cleaning liquid inside the processing box from spreading when the top cover on the top of the processing box is opened, and at the same time improve the utilization rate of the cleaning liquid, and optimize the processing environment;

[0018] 2. By setting the activated carbon filter cotton in a state where one end is rolled up and the other end is unrolled, the use surface of the activated carbon filter cotton in the cavity of the top cover can be replaced, and the activated carbon filter cotton in the top cover can be kept to have a high efficiency in filtering effect, and impurities can be prevented from falling into the treatment box again and mixing with the cleaning liquid, which affects the cleaning effect. In addition, a guide frame and a conveying port as well as two scrapers supported by an extrusion spring and a support bolt can be provided, so that the activated carbon filter cotton that is rolled outward after being saturated can be drained, so that the water is drained out in the treatment box and the impurities are left in the micropores of the activated carbon filter cotton. This structural setting can facilitate the replacement of the activated carbon filter cotton and maintain the high efficiency of the use of the cleaning liquid inside the treatment box;

[0019] 3. By setting a "mountain"-shaped guide sleeve, the concave surface formed by the "mountain" shape of the guide sleeve can form multi-faceted contact with the outer surface and inner wall of the slide rail, thereby improving the stability of the reciprocating movement, and then the stabilizing frame connected to the guide sleeve can carry the stabilizing plate and the cleaning brush to brush the plastic parts in the cleaning net slot steadily. At the same time, the stable cleaning state can avoid the problem of direct contact between odor and air caused by manual cleaning, thereby improving the convenience of cleaning work. In addition, since the processing box and the top cover are in a sealed space, the stabilizing plate will not cause liquid splashing when brushing as the guide sleeve moves faster.

[0020] 4. By setting up a hydraulic rod, a bearing ring and a support bolt, the cleaning brush can be pressed down to contact the surface of the plastic part being brushed. The downward pressure and the horizontal reciprocating movement trajectory of the guide sleeve and the stabilizer frame can be used to form resistance between the workpiece and the stabilizer plate and the cleaning brush. Since the support bolt is connected to the inner wall of the bearing ring, the stabilizer plate can be rotatable, and the rotation effect can be used to improve the comprehensiveness of cleaning.

[0021] 5. By setting up a light-transmitting box and a sliding connection method for the card plate, the light-transmitting box can be installed by plugging and unplugging from the installation port, which is conducive to the convenient replacement of the ultraviolet lamp installed inside the treatment box. In addition, the installation of the ultraviolet lamp can make the cleaning liquid inside the treatment box have a disinfection effect after circulating and filtering, thereby improving the efficiency of the use of the cleaning liquid. At the same time, the setting of the ultraviolet lamp can perform bottom disinfection when there is no liquid inside the treatment box, which is convenient for subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 It is a front cross-sectional structural schematic diagram of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0027] Figure 6 For the present invention Figure 4 The enlarged structural diagram at C in the middle;

[0028] Figure 7 This is a schematic diagram of the cleaning component structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 The enlarged structural diagram at D in the middle;

[0030] Fig. 9 It is a schematic diagram of the assembly structure of the light-transmitting box, the ultraviolet lamp tube and the pallet of the present invention.

[0031] In the figure:

[0032] 1. Processing box; 2. Top cover; 3. Cleaning net slot; 25. Mounting port; 26. Translucent box; 27. Ultraviolet lamp tube; 28. Card plate; 29. ​​Scraper; 30. Contraction slot; 31. Support rod; 32. Extrusion spring;

[0033] The circulating filtration components include: 4. activated carbon filter cotton; 5. guide frame; 6. water outlet; 7. water pump; 8. hose; 9. drain pipe; 10. water inlet pipe;

[0034] The replacement components include: 11, support block; 12, reel; 13, reel motor; 14, conveying port;

[0035] The cleaning assembly includes: 15, a slide rail; 16, an electric motor; 17, a reciprocating threaded rod; 18, a guide sleeve; 19, a stabilizing frame; 20, a hydraulic rod; 21, a stabilizing plate; 22, a cleaning brush; 23, a bearing ring; and 24, a support bolt. DETAILED DESCRIPTION

[0036] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figures 1 to 9 , is an embodiment provided by the present invention: a pretreatment device for automobile plastic parts manufacturing, comprising a treatment box 1, a top cover 2, and a cleaning net slot 3, the top cover 2 is clamped on the top surface of the treatment box 1, the cleaning net slot 3 is fixedly connected to the middle part of the inner wall of the treatment box 1, a cavity is opened inside the top cover 2, a circulating filter component is arranged in the cavity of the top cover 2, a replacement component is arranged on the side wall of the top cover 2, and a cleaning component in contact with the cleaning net slot 3 is arranged below the top cover 2.

[0038] The processing box 1 is transparent, so it is convenient to check the liquid level line.

[0039] like Figure 1-Figure 5The figure shows that the circulation filter component includes activated carbon filter cotton 4, which is specifically soft activated carbon, can provide more adsorption sites, rich microporous structure, is conducive to the adsorption of various substances, and has good compressibility. The outer surface of the activated carbon filter cotton 4 is located in the middle of the cavity of the top cover 2, and a plurality of water outlets 6 are provided on the bottom surface of the top cover 2, and the water outlets 6 are located above the cleaning net slot 3. Two groups of drain pipes 9 are fixedly connected to the top surface of the top cover 2, and the bottom surface of the drain pipe 9 is connected to the cavity of the top cover 2, and the top surface of the drain pipe 9 is connected to the water inlet pipe 10. The side wall of the treatment box 1 is provided with a water pump 7, and a hose 8 is connected between the treatment box 1, the water pump 7 and the water inlet pipe 10, and the hose 8 is threadedly connected to the water inlet pipe 10. The circulation filter component also includes a guide frame 5 fixed at both ends of the cavity of the top cover 2, and the outer surfaces on both sides of the activated carbon filter cotton 4 are tightly fitted with the notches of the guide frame 5.

[0040] The water pump 7 is electrically connected to the external power supply, and the activated carbon filter cotton 4 is arranged in the middle of the cavity of the top cover 2, so that the circulating filter component can adsorb impurities in the cleaning liquid every time the cleaning liquid is circulated into the processing box 1, thereby maintaining the high efficiency of the use of the cleaning liquid in the processing box 1 and preventing impurities from falling with the cleaning liquid and adhering to the surface of the workpiece again.

[0041] When the circulating filter assembly is in use, the staff first removes the top cover 2 from the top surface of the treatment box 1, then places the plastic parts that need to be degreased in the cleaning net groove 3, then injects alcohol cleaning liquid into the treatment box 1, and then the staff covers the top cover 2 on the top surface of the treatment box 1, and then threadedly connects the hose 8 to the ports of the water inlet pipe 10 and the water pump 7. At this time, the cleaning liquid soaks the plastic parts in the cleaning net groove 3, and then the staff connects the water pump 7 to an external power supply to drive it, so that the cleaning liquid in the treatment box 1 is extracted into the drain pipe 9 on the surface of the top cover 2. With the circulation state of the water pump 7, the cleaning liquid is distributed in the cavity of the top cover 2. When the cleaning liquid in the treatment box 1 falls to the treatment box 1 through the top cover 2, the impurities in the cleaning liquid will be adsorbed by the activated carbon filter cotton 4, while reducing the irritating odor. In addition, the top cover 2 and the treatment box 1 are in a sealed state at this time, which can directly prevent the odor from volatilizing to the outside.

[0042] During the pretreatment of automobile plastic parts, the plastic parts that need to be degreased are placed on the inner wall of the cleaning net groove 3, and then the top cover 2 is covered on the top surface of the processing box 1 to form a sealed cavity between the processing box 1 and the top cover 2 to prevent odor from spreading outward and reduce the splashing of the cleaning liquid during the cleaning process. Then, the water pump 7 is driven to allow the hose 8 to draw the cleaning liquid from the inside of the processing box 1 into the water inlet pipe 10 and discharge it into the processing box 1 through the bottom surface of the top cover 2 to form a circulating flushing. When the cleaning liquid is sent into the cavity of the top cover 2, it can be filtered for odor through the activated carbon filter cotton 4, and at the same time, the impurities of the cleaning liquid that has been used can be adsorbed, so that the odor can be reduced from spreading outward when the top of the processing box 1 is separated from the top cover 2, and the utilization rate of the cleaning liquid can be improved, thereby optimizing the processing environment, avoiding excessive odor when wastewater is formed, and avoiding the problem of odor spreading during processing affecting the processing environment.

[0043] The hose 8 is arranged to be threadedly connected, so that it can be easily disassembled when the top cover 2 is removed, avoiding the influence of hard connection on the operation. In addition, the threaded connection method is simple, which is more conducive to the replacement of the hose 8 and reduces the tediousness of maintaining the equipment. A wastewater discharge pipe is arranged at the bottom of the side wall of the treatment box 1, and it is normally blocked. When the cleaning liquid in the treatment box 1 is used up and wastewater is generated, the wastewater discharge pipe can be opened to discharge the filtered wastewater. The setting of the guide frame 5 can facilitate the horizontal guidance of one end of the activated carbon filter cotton 4 from the conveying port 14 to pass through the surface of the winding shaft 12 when replacing the activated carbon filter cotton 4.

[0044] like Figure 1-Figure 5 As shown, the replacement component includes a support block 11, which is rectangularly distributed on the side wall of the top cover 2, and a winding shaft 12 is rotatably connected between two adjacent support blocks 11. A winding motor 13 is fixedly connected to the outer surface of one of the support blocks 11, and the output end of the winding motor 13 is fixedly connected to the winding shaft 12. A conveying port 14 is opened on the side wall of the top cover 2, and the outer surfaces of both ends of the activated carbon filter cotton 4 are tightly fitted with the inner wall of the conveying port 14. Both ends of the activated carbon filter cotton 4 are rolled up on the outer surface of the winding shaft 12, and the space of the top cover 2 Equidistantly distributed contraction grooves 30 are provided on both sides of the inner wall of the cavity, and scrapers 29 are provided on both sides of the opening of the delivery port 14. One side of the scraper 29 is tightly fitted with the surface of the activated carbon filter cotton 4, and the other side of the scraper 29 is opposite to the contraction groove 30. A support rod 31 fixed to the surface of the scraper 29 is inserted into the inner wall of the opening of the contraction groove 30, and an extrusion spring 32 is sleeved on the outer surface of the support rod 31. One end of the extrusion spring 32 is fixedly connected to the end face of the scraper 29, and the other end of the extrusion spring 32 is fixedly connected to the inner wall of the cavity of the top cover 2.

[0045] When the activated carbon filter cotton 4 is in contact with the cleaning liquid, the winding motor 13 is driven so that the winding shaft 12 at one end starts to rotate and wind up the activated carbon filter cotton 4 in the cavity of the top cover 2. At the same time, the other winding shaft 12 starts to release the activated carbon filter cotton 4 wound on the surface, so that the use surface of the activated carbon filter cotton 4 in the cavity of the top cover 2 is replaced. When the activated carbon filter cotton 4 is removed from the cavity of the top cover 2, it is in a state of being saturated with the cleaning liquid. When passing through the cavity of the top cover 2 to the outside, the guide frame 5 and the conveying port 1 4 contacts with the saturated activated carbon filter cotton 4, and at the same time, two scrapers 29 supported by the extrusion spring 32 and the support rod 31 will use the reset thrust of the spring to drain the moisture adsorbed on the surface of the activated carbon filter cotton 4 into the treatment box 1. This structural setting can make the activated carbon filter cotton 4 located in the top cover 2 always maintain a high-efficiency filtering effect, avoid impurities from falling into the treatment box 1 again and mixing with the cleaning liquid to affect the cleaning effect, facilitate the replacement of the activated carbon filter cotton 4, and maintain the high efficiency of the use of the cleaning liquid inside the treatment box 1.

[0046] When the activated carbon filter cotton 4 is removed from the cavity of the top cover 2, it is in a state of being saturated with the cleaning liquid. Therefore, when passing through the cavity of the top cover 2 to the outside, it will have a certain squeezing effect on the activated carbon filter cotton 4 due to the contact with the guide frame 5 and the delivery port 14. At the same time, there will be a relative pushing force between the two scrapers 29 supported by the squeezing spring 32 and the support rod 31, so that the surface of the activated carbon filter cotton 4 is squeezed, and then the water adsorbed on the surface of the activated carbon filter cotton 4 can be drained into the treatment box 1, while impurities will remain in the micropores of the activated carbon filter cotton 4. In addition, since the activated carbon filter cotton 4 specifically uses soft activated carbon, it has multiple adsorption sites, and the outer surface of the activated carbon filter cotton 4 is located at the top cover 2 The cavity can cover the entire cavity of the top cover 2, and the usable area is large. The larger setting area means that more activated carbon can be used to adsorb odor molecules, thereby improving the adsorption efficiency. At the same time, the large area makes the amount of odor adsorbed per unit time relatively reduced, thereby extending the effective use time of the activated carbon. Combined with the effect of being retractable and replaceable, the odor at the pretreatment work site can be ignored. At the same time, after each pretreatment, the staff can replace the used activated carbon filter cotton 4.

[0047] Example 2: Figure 2-Figure 7As shown, the cleaning component includes a slide rail 15 fixedly connected to the inside of the processing box 1, and the cleaning component also includes an electric motor 16 fixedly connected to the outside of the processing box 1. The output end of the electric motor 16 is fixedly connected to a reciprocating threaded rod 17 rotating on the inner wall of the slide rail 15. The outer surface of the reciprocating threaded rod 17 is threadedly connected to a guide sleeve 18 slidably connected to the inner wall of the slide rail 15. The guide sleeve 18 is in a mountain shape. The outer surface of the guide sleeve 18 is fixedly connected to a stabilizing frame 19. The end of the stabilizing frame 19 is fixedly connected to a hydraulic rod 20. The telescopic end of the hydraulic rod 20 is provided with a stabilizing disk 21. The outer surface of the stabilizing disk 21 is in contact with the inner wall of the notch of the cleaning net slot 3. The bottom surface of the stabilizing disk 21 is fixedly connected to a plurality of cleaning brushes 22. The cleaning component also includes a bearing ring 23. The inner wall of the top end of the bearing ring 23 is fixedly connected to the outer surface of the bottom end of the telescopic end of the hydraulic rod 20. A support bolt 24 is fixedly connected to the center of the top surface of the stabilizing disk 21. The top end of the support bolt 24 is fixedly connected to the inner wall of the bottom end of the bearing ring 23.

[0048] When the cleaning assembly is in use, the plastic part is located inside the cleaning net slot 3, and the processing box 1 and the top cover 2 are in a sealed circulating water inlet state. At this time, the staff drives the electric motor 16. When the electric motor 16 is driven, the reciprocating threaded rod 17 rotates so that the guide sleeve 18 slidably connected to the slide rail 15 has a horizontal reciprocating movement effect, so that the stabilizing frame 19 connected to the side wall of the guide sleeve 18 moves back and forth with the hydraulic rod 20, the stabilizing disk 21, and the cleaning brush 22. During the movement, the plastic part contacted by the cleaning brush 22 can be brushed on the surface. At the same time, when the electric motor 16 is driven, the hydraulic rod 20 is in a continuous telescopic state, and the plastic part is further brushed and cleaned in the telescopic downward state. When the cleaning brush 22 generates a resistance force with the workpiece, the stabilizing disk 21 will dynamically change due to the resistance. Since the support bolt 24 is connected to the inner wall of the bearing ring 23, the stabilizing disk 21 can be made rotatable, and the rotation effect is used to improve the comprehensiveness of cleaning.

[0049] When the plastic parts in the cleaning net slot 3 come into contact with the cleaning liquid, the electric motor 16 is driven to make the guide sleeve 18 and the stabilizing frame 19 move back and forth horizontally, thereby driving the stabilizing plate 21 and the cleaning brush 22 to brush the plastic parts in the cleaning net slot 3. The integrated structure can avoid excessive manual input and the problem of low labor efficiency. At the same time, compared with the existing technology, it can directly avoid manual cleaning and avoid the odor of the cleaning liquid and the harm to the human body caused by contact. Since the processing box 1 and the top cover 2 are in a sealed space, the stabilizing plate 21 will not cause liquid splashing when brushing as the moving speed of the guide sleeve 18 increases.

[0050] There is an electrical connection between the electric motor 16 and the hydraulic rod 20 , and the hydraulic rod 20 can be directly extended and retracted at the same time by the drive of the electric motor 16 .

[0051] like Figure 4 and Figure 8 As shown, ultraviolet lamp tubes 27 are arranged on both sides of the inner wall of the processing box 1, and a light-transmitting box 26 is arranged outside the ultraviolet lamp tube 27. A mounting opening 25 is opened on the outer surface of the processing box 1 corresponding to the light-transmitting box 26, and a clamping plate 28 is fixedly connected to both sides of the inner wall of the processing box 1. The end of the light-transmitting box 26 is inserted into the inner wall of the mounting opening 25, and the side wall of the light-transmitting box 26 is slidably connected to the clamping plate 28.

[0052] By installing the ultraviolet lamp tube 27, the cleaning liquid inside the treatment box 1 can be circulated and filtered to have a disinfection effect, thereby improving the efficiency of the use of the cleaning liquid. At the same time, the setting of the ultraviolet lamp tube 27 can perform bottom disinfection when there is no liquid inside the treatment box 1, which is convenient for subsequent cleaning work. In addition, the light-transmitting box 26 and the card plate 28 are connected in a sliding manner, so that the light-transmitting box 26 can be plugged in and installed from the installation port 25, which is conducive to the replacement of the ultraviolet lamp tube 27.

[0053] The above implementation works as follows:

[0054] The initialization steps are as follows:

[0055] The treatment box 1 and the top cover 2 are not closed initially, the hose 8 is not connected between the water outlet 6 and the water inlet pipe 10, no cleaning liquid is added to the treatment box 1, a wastewater discharge pipe is provided at the bottom of the side wall of the treatment box 1, and it is normally blocked. The staff passes the two ends of the activated carbon filter cotton 4 through the cavity of the top cover 2 and wraps them around the outer surface of the winding shaft 12.

[0056] In summary, the working steps are as follows:

[0057] When the automobile plastic parts are pretreated, the staff will remove the top cover 2 from the top surface of the processing box 1, and then place the plastic parts that need to be degreased in the cleaning net slot 3, and then inject alcohol cleaning liquid into the processing box 1. The staff will then cover the top cover 2 on the top surface of the processing box 1, and then connect the hose 8. During this process, the plastic parts are in a state of being pre-soaked in the cleaning liquid. Then the staff will drive the water outlet 6, the winding motor 13 and the electric motor 16, so that the circulating filtering component, the replacement component and the cleaning component work synchronously, thereby completing the work of pretreatment of the plastic parts. During the process, no odor is emitted to the outside, and the efficiency of the pretreatment can be improved. Finally, the generated wastewater can be discharged.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pretreatment device for manufacturing automobile plastic parts, comprising a treatment box (1), a top cover (2), and a cleaning net slot (3), wherein the top cover (2) is snap-fitted to the top surface of the treatment box (1), and the cleaning net slot (3) is fixedly connected to the middle part of the inner wall of the treatment box (1), characterized in that: A cavity is provided inside the top cover (2), a circulating filter assembly is arranged in the cavity of the top cover (2), a replacement assembly is arranged on the side wall of the top cover (2), and a cleaning assembly in contact with the cleaning net slot (3) is arranged below the top cover (2); The circulation filter assembly comprises activated carbon filter cotton (4), the outer surface of the activated carbon filter cotton (4) is located in the middle of the cavity of the top cover (2), the bottom surface of the top cover (2) is provided with a plurality of water outlets (6), and the water outlets (6) are located above the cleaning net slot (3), the top surface of the top cover (2) is fixedly connected with two groups of drainage pipes (9), the bottom surface of the drainage pipe (9) is connected to the cavity of the top cover (2), the top surface of the drainage pipe (9) is connected to a water inlet pipe (10), the side wall of the treatment box (1) is connected to a water pump (7) through a straight pipe, and a hose (8) is connected between the treatment box (1), the water pump (7) and the water inlet pipe (10); The replacement component comprises support blocks (11), the support blocks (11) are rectangularly distributed on the side walls of the top cover (2), a winding shaft (12) is rotatably connected between two adjacent support blocks (11), a winding motor (13) is fixedly connected to the outer surface of one of the support blocks (11), the output end of the winding motor (13) is fixedly connected to the winding shaft (12), a conveying port (14) is opened on the side wall of the top cover (2), the outer surfaces of both ends of the activated carbon filter cotton (4) are tightly fitted with the inner wall of the conveying port (14), the two ends of the activated carbon filter cotton (4) are rolled up on the outer surface of the winding shaft (12), and the airtightness of the top cover (2) is Both sides of the inner wall of the cavity are provided with equidistantly distributed contraction grooves (30), both sides of the opening of the delivery port (14) are provided with scrapers (29), one side of the scraper (29) is in close contact with the surface of the activated carbon filter cotton (4), and the other side of the scraper (29) is opposite to the contraction groove (30), and the inner wall of the opening of the contraction groove (30) is provided with a support rod (31) fixed to the surface of the scraper (29), and the outer surface of the support rod (31) is sleeved with an extrusion spring (32), one end of the extrusion spring (32) is fixedly connected to the end surface of the scraper (29), and the other end of the extrusion spring (32) is fixedly connected to the inner wall of the cavity of the top cover (2); The cleaning assembly comprises a slide rail (15) fixedly connected to the inside of the processing box (1), and the cleaning assembly also comprises an electric motor (16) fixedly connected to the outside of the processing box (1), the output end of the electric motor (16) being fixedly connected to a reciprocating threaded rod (17) rotating on the inner wall of the slide rail (15), the outer surface of the reciprocating threaded rod (17) being threadedly connected to a guide sleeve (18) slidably connected to the inner wall of the slide rail (15), the outer surface of the guide sleeve (18) being fixedly connected to a stabilizing frame (19), the end of the stabilizing frame (19) being fixedly connected to a hydraulic rod (20), the telescopic end of the hydraulic rod (20) being provided with a stabilizing plate (21), the outer surface of the stabilizing plate (21) being in contact with the inner wall of the notch of the cleaning net slot (3), and the bottom surface of the stabilizing plate (21) being fixedly connected to a plurality of cleaning brushes (22); The cleaning assembly further comprises a bearing ring (23), the inner wall of the top end of the bearing ring (23) being fixedly connected to the outer surface of the bottom end of the telescopic end of the hydraulic rod (20), a support bolt (24) being fixedly connected to the center of the top surface of the stabilizing plate (21), the top end of the support bolt (24) being fixedly connected to the inner wall of the bottom end of the bearing ring (23); The guide sleeve (18) is in the shape of a mountain.

2. The automobile plastic parts manufacturing pretreatment device according to claim 1, characterized in that: Ultraviolet lamp tubes (27) are arranged on both sides of the inner wall of the processing box (1), and a light-transmitting box (26) is arranged outside the ultraviolet lamp tubes (27).

3. The automobile plastic parts manufacturing pretreatment device according to claim 1, characterized in that: The hose (8) is threadedly connected to the water inlet pipe (10).

4. The automobile plastic parts manufacturing pretreatment device according to claim 1, characterized in that: The circulation filter assembly further comprises guide frames (5) fixed to both ends of the cavity of the top cover (2), and both side outer surfaces of the activated carbon filter cotton (4) are tightly fitted with the notches of the guide frames (5).

5. The automobile plastic parts manufacturing pretreatment device according to claim 1, characterized in that: An installation opening (25) is provided on the outer surface of the processing box (1) at a position corresponding to the light-transmitting box (26); a clamping plate (28) is fixedly connected to both sides of the inner wall of the processing box (1); an end of the light-transmitting box (26) is inserted into the inner wall of the installation opening (25); and a side wall of the light-transmitting box (26) is slidably connected to the clamping plate (28).

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