A coating machine negative pressure cleaning device

Abstract

The application discloses a kind of based on coating machine negative pressure cleaning device, it is related to cleaning device technical field, including coating component, including coating machine pedestal, the top of coating machine pedestal is fixed with coating machine cover frame, and coating part is arranged in the cavity of coating machine cover frame.The application is cooperated by the design of the existing negative pressure adsorption limiting device and multifunctional cleaning module of integrated coating machine, effectively solve the obvious defects such as high cost, maintenance is complicated and cleaning effect is limited, idle negative pressure resources and the like by relying on independent negative pressure device, not only abandon the separation type design of vacuum pump or fan, simultaneously optimize airflow guide structure, enhance the cleaning ability of dust adhered to material surface, avoid residual impurities to influence coating uniformity, idle negative pressure resources are converted into cleaning power by gas pressure pipeline reuse simultaneously, eliminate energy waste and achieve the cooperative operation of cleaning and positioning, provide key technical support for the efficient and energy-saving upgrading of coating machine process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, in particular to a negative pressure cleaning device based on a coating machine. BACKGROUND

[0002] In the daily operation and maintenance process of the coating machine, the negative pressure cleaning device based on the coating machine is often used to efficiently adsorb and clean the dust, residual coating particles and other impurities in the coating nozzle, workbench and equipment gap, so as to avoid the coating nozzle from being blocked, the coating layer from having bubbles or spots, or the equipment components from being accelerated to wear, thereby affecting the working efficiency of the coating machine, the quality of the coating product and the service life of the equipment.

[0003] The existing negative pressure cleaning device based on the coating machine has obvious defects in function integration and resource utilization. It needs to rely on an independent negative pressure generating device to realize the cleaning operation. The additional vacuum pump or fan not only increases the equipment purchase cost, but also causes the installation and maintenance steps to be complicated due to the need to separately arrange the pipeline and control system. This separated design makes the cleaning function single, and can only complete the basic dust suction operation. The cleaning effect on the dust that may be adhered to the surface of the material before coating is limited, and the residual impurities easily affect the uniformity of the coating layer. At the same time, the device does not form linkage with the existing negative pressure adsorption limiting device of the coating machine, such as the vacuum adsorption system used for fixing the substrate during coating, causing the negative pressure resource to be idle and the energy to be wasted. The device cannot realize the collaborative operation of cleaning and positioning through the reuse of the air pressure pipeline. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title. Such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above and / or existing problems in the negative pressure cleaning device based on the coating machine, the present application is proposed.

[0006] Therefore, the problem to be solved by the present application is how to solve the poor cleaning effect and the complicated self-cleaning.

[0007] In order to solve the above technical problems, the present application provides the following technical scheme: a coating machine negative pressure cleaning device based on the present application, which comprises a coating assembly, a coating machine base, a coating machine cover frame fixed on the top of the coating machine base, a coating part arranged in the inner cavity of the coating machine cover frame, and the coating part is fixed on the top of the coating machine base; and a limiting cleaning assembly arranged in the inner cavity of the coating machine cover frame, comprising a limiting part fixed on one side of the coating part, a dustproof part placed on the top of the limiting part, a gas driving part arranged on one side of the limiting part, a dust collecting part arranged on the top of the limiting part, a self-locking part fixed on the surface of the dust collecting part, a gas driving transmission part fixed on the bottom of the self-locking part, a self-cleaning part fixed on one side of the gas driving part, and a filter part arranged on the bottom of the limiting part.

[0008] As a preferred scheme of the coating machine negative pressure cleaning device based on the present application, the limiting part comprises a limiting base fixed on the surface of the coating part, a negative pressure adsorption plate placed on the top of the limiting base, a fixing seat fixed on one side of the limiting base, and a plug-in spline fixed on the top of the fixing seat.

[0009] As a preferred scheme of the coating machine negative pressure cleaning device based on the present application, the self-cleaning part comprises a fixed frame fixed on the bottom of the limiting base, an elastic air bag movably connected on one side of the fixed frame, a second communication pipe fixed on one side of the elastic air bag, a sealing air bag fixed on one side of the second communication pipe, an extrusion plate movably connected on one side of the elastic air bag, a first piston rod fixed on one side of the extrusion plate, a first gas chamber sleeved on the surface of the first piston rod, a one-way pressure valve fixed on the top of the first gas chamber, and a first communication pipe fixed on the top of the one-way pressure valve.

[0010] As a preferred scheme of the coating machine negative pressure cleaning device based on the present application, the gas driving part comprises a high-pressure vortex air pump fixed on the bottom of the limiting base, a first connecting pipe fixed on one side of the high-pressure vortex air pump, a second connecting pipe fixed on the other side of the high-pressure vortex air pump, a single-hole rotating pipe movably connected on one side of the second connecting pipe, a fixed vertical plate fixed on the bottom of the limiting base, the single-hole rotating pipe movably connected on one side of the fixed vertical plate, a fixed sleeve sleeved on the surface of the single-hole rotating pipe, the fixed sleeve fixed on the bottom of the high-pressure vortex air pump, a third exhaust pipe, a second exhaust pipe and a first exhaust pipe fixed on the surface of the fixed sleeve respectively, and a rotating handle sleeved on the surface of the single-hole rotating pipe.

[0011] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the dust collecting part comprises a dust collecting top shell arranged on the top of the limiting base, a first dust collecting pipe is fixed on the top of the dust collecting top shell, a limiting sleeve pipe is arranged on the surface of the first dust collecting pipe, a sealing air ring is fixed on the inner wall of the limiting sleeve pipe, and a second dust collecting pipe is arranged on the bottom of the first dust collecting pipe.

[0012] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the self-locking part comprises a fixed block fixed on one side of the limiting base, a second extrusion block matched with the limiting base is slidably connected to the inner wall of the fixed block, a return spring is arranged on the surface of the second extrusion block, a first transmission plate is arranged on the bottom of the fixed block, a sliding vertical rod is fixed on the top of the first transmission plate, a second transmission plate is arranged on the surface of the sliding vertical rod, a connecting spring is arranged on the sliding vertical rod, a movable plate is fixed on the top of the sliding vertical rod, a plug-in block is fixed on the bottom of the movable plate, a connecting plug-in plate matched with the plug-in block is arranged on the surface of the limiting sleeve pipe, and a first extrusion rod matched with the second extrusion block is fixed on the top of the first transmission plate.

[0013] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the dustproof part comprises a dustproof baffle movably connected to the top of the limiting base, and a damping spline seat matched with the fixed seat is fixed on one side of the dustproof baffle.

[0014] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the air driving transmission part comprises a second air chamber fixed on the bottom of the coating machine base, a third piston rod is movably connected to one side of the inner wall of the second air chamber, the third piston rod is fixed on the bottom of the first transmission plate, a second piston rod is movably connected to the other side of the inner wall of the second air chamber, a rubber spring column is arranged on the surface of the second piston rod, a three-way pipe is fixed on the bottom of the second air chamber, a connecting hose is fixed on the bottom of the three-way pipe, and the connecting hose is fixed on the surface of the third exhaust pipe.

[0015] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the filtering part comprises a filtering shell fixed on the bottom of the limiting base, a positioning block is fixed on the inner wall of the filtering shell, filtering cotton is movably connected to one side of the positioning block, and a dust collecting bottom shell is embedded on the bottom of the filtering shell.

[0016] As a preferred scheme of the coating machine negative pressure cleaning device based on the application, wherein: the one-way backflushing nozzle is movably connected to the inner wall of the filtering shell, a communication cross pipe is fixed on one side of the filtering shell, a communication shell is fixed on one side of the communication cross pipe, a one-way multi-way pipe is fixed on the surface of the communication shell, a first connecting pipe is fixed on one side of the communication shell, and a second dust collecting pipe is fixed on the surface of the filtering shell.

[0017] The present application has the beneficial effects that: through the collaborative design of integrating the existing negative pressure adsorption limiting device and the multifunctional cleaning module of the coating machine, the obvious defects such as high cost, complicated maintenance, limited cleaning effect, and idle negative pressure resources are effectively solved, not only the separate design of additional configuration of vacuum pump or fan is abandoned, but also the air flow guide structure is optimized, the cleaning ability of adhering dust on the surface of the material is enhanced, the influence of residual impurities on the uniformity of the coating is avoided, the idle negative pressure resources are converted into cleaning power through the reuse of the air pressure pipeline, the energy waste is eliminated, and the collaborative operation of cleaning and positioning is achieved, which provides key technical support for the efficiency and energy saving upgrade of the coating machine process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structural view of the negative pressure cleaning device based on the coating machine.

[0020] Figure 2 It is a front view of the negative pressure cleaning device based on the coating machine.

[0021] Figure 3 It is a sectional view of the negative pressure cleaning device based on the coating machine.

[0022] Figure 4 It is an axial side view of the limiting and cleaning assembly of the negative pressure cleaning device based on the coating machine.

[0023] Figure 5 It is an axial side view of the self-locking piece and the air-driven driving piece of the negative pressure cleaning device based on the coating machine.

[0024] Figure 6 It is a structural view of the air-driven piece and the self-cleaning piece of the negative pressure cleaning device based on the coating machine.

[0025] Figure 7 It is an axial side view of the limiting piece of the negative pressure cleaning device based on the coating machine.

[0026] Figure 8 It is a bottom view of the limiting piece of the negative pressure cleaning device based on the coating machine.

[0027] Figure 9 It is a structural view of the negative pressure cleaning device based on the coating machine. Figure 8 It is an enlarged view of A in the middle.

[0028] Figure 10It is a sectional view of the air driving member based on the negative pressure cleaning device of the coating machine.

[0029] Figure 11 It is a bottom structure view of the dustproof member based on the negative pressure cleaning device of the coating machine.

[0030] Figure 12 It is a sectional view of the dustproof member based on the negative pressure cleaning device of the coating machine. Figure 11 It is an enlarged view of B in the middle.

[0031] Figure 13 It is a sectional view of the dustproof member based on the negative pressure cleaning device of the coating machine.

[0032] In the figure: 1, coating assembly; 11, coating machine base; 12, coating machine cover frame; 13, coating member; 2, limiting cleaning assembly; 21, limiting member; 211, limiting base; 212, negative pressure adsorption plate; 213, fixed seat; 214, plug-in spline; 22, self-cleaning member; 221, first air chamber; 222, one-way pressure valve; 223, first communication pipe; 224, one-way backflushing nozzle; 225, sealing air bag; 226, second communication pipe; 227, fixed frame; 228, elastic air bag; 229, extrusion plate; 2210, first piston rod; 23, air driving member; 231, high-pressure vortex air pump; 232, second connecting pipe; 233, rotating handle; 234, third exhaust pipe; 235, second exhaust pipe; 236, single-hole rotating pipe; 237, first connecting pipe; 238, fixed vertical plate; 239, first exhaust pipe; 2310, fixed sleeve; 24, dust collecting member; 241, limiting sleeve; 242, first dust collecting pipe; 243, sealing air ring; 244, dust collecting top shell; 245, second dust collecting pipe; 25, self-locking member; 251, fixed block; 252, return spring; 253, first extrusion rod; 254, second extrusion block; 255, first transmission plate; 256, connecting spring; 257, sliding vertical rod; 258, second transmission plate; 259, connecting plug-in plate; 2510, plug-in block; 2511, movable plate; 26, dustproof member; 261, dustproof baffle; 262, damping spline seat; 27, air driving transmission member; 271, connecting hose; 272, three-way pipe; 273, second piston rod; 274, second air chamber; 275, third piston rod; 276, rubber spring column; 28, filtering member; 281, filter shell; 282, positioning block; 283, dust collecting bottom shell; 284, filter cotton; 285, one-way multi-way pipe; 286, communication cross pipe; 287, communication shell. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description in other implementations. Therefore, the scope of the present application understood by reference to the description and should not be limited by any of the specific embodiments disclosed.

[0035] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0036] Embodiment 1, reference Figure 1 and Figure 2 The first embodiment of the present application provides a coating machine negative pressure cleaning device based on the coating assembly 1 and the limiting cleaning assembly 2.

[0037] Through the cooperative design of the coating assembly 1 and the limiting cleaning assembly 2, the obvious defects such as high cost, complex maintenance, limited cleaning effect, and idle negative pressure resources are effectively solved. Not only does it abandon the separate design of additional vacuum pump or fan, but also optimizes the airflow guide structure, enhances the cleaning ability of the dust adhered to the surface of the material, avoids the influence of residual impurities on the uniformity of the coating, and synchronously converts the idle negative pressure resources into cleaning power through the reuse of the air pressure pipeline, thereby eliminating energy waste and achieving the cooperative operation of cleaning and positioning, and providing key technical support for the efficiency and energy saving upgrade of the coating machine process.

[0038] Specifically, the coating assembly 1 includes a coating machine base 11, a coating machine cover frame 12 is fixed on the top of the coating machine base 11, a coating part 13 is arranged in the inner cavity of the coating machine cover frame 12, and the coating part 13 is fixed on the top of the coating machine base 11.

[0039] The coating machine base 11 is the core bearing structure of the entire coating device, which provides a stable installation reference for the coating machine cover frame 12, the coating part 13 and the subsequent limiting cleaning assembly 2, so as to avoid the equipment shaking during the coating process to cause the coating precision to decrease; the coating machine cover frame 12 is in the form of a frame and is arranged on the top of the coating machine base 11, which can prevent the internal coating part 13 and the limiting cleaning assembly 2 from being disturbed by external collisions and dust, and reduce the overflow of coating waste; the coating part 13 is the core execution component of the coating operation and is fixed on the top of the coating machine base 11, which ensures the accuracy of the coating path and provides uniform coating for the workpiece.

[0040] Specifically, the limiting and cleaning assembly 2 is arranged in the inner cavity of the coating machine cover frame 12, and includes a limiting piece 21 fixed to one side of the coating piece 13, a dustproof piece 26 placed on the top of the limiting piece 21, a gas driving piece 23 arranged on one side of the limiting piece 21, a dust collecting piece 24 arranged on the top of the limiting piece 21, a self-locking piece 25 fixed to the surface of the dust collecting piece 24, a gas driving transmission piece 27 fixed to the bottom of the self-locking piece 25, a self-cleaning piece 22 fixed to one side of the gas driving piece 23, and a filter piece 28 arranged on the bottom of the limiting piece 21.

[0041] Embodiment 2, refer to Figures 2 to 7 As a second embodiment of the present application, the embodiment is based on the previous embodiment.

[0042] Specifically, the limiting piece 21 includes a limiting base 211 fixed to the surface of the coating piece 13, a negative pressure adsorption plate 212 placed on the top of the limiting base 211, and a fixed seat 213 fixed to one side of the limiting base 211, wherein the top of the fixed seat 213 is fixed with an insertion spline 214.

[0043] The limiting base 211 provides a core installation reference for the limiting and cleaning assembly 2, and ensures accurate positioning of each component; the negative pressure adsorption plate 212 adsorbs the workpiece to be coated through negative pressure adsorption, so as to avoid workpiece deviation during coating and cause uneven coating; the fixed seat 213 provides a connecting fulcrum for the dustproof piece 26, and the insertion spline 214 cooperates with a damping spline seat 262 to realize angle adjustment and stable positioning of the dustproof baffle 261, and flexibly adapts to the protection requirements of workpieces of different sizes.

[0044] Specifically, the self-cleaning piece 22 includes a fixed frame 227 fixed to the bottom of the limiting base 211, an elastic air bag 228 movably connected to one side of the fixed frame 227, a second communication pipe 226 fixed to one side of the elastic air bag 228, a sealing air bag 225 fixed to one side of the second communication pipe 226, an extrusion plate 229 movably connected to one side of the elastic air bag 228, a first piston rod 2210 fixed to one side of the extrusion plate 229, a first gas chamber 221 sleeved to the surface of the first piston rod 2210, a one-way pressure valve 222 fixed to the top of the first gas chamber 221, and a first communication pipe 223 fixed to the top of the one-way pressure valve 222.

[0045] The fixed frame 227 limits the deformation range of the elastic air bag 228 to prevent excessive extrusion damage; when the first piston rod 2210 slides in the first gas chamber 221, the extrusion plate 229 is pushed to compress the elastic air bag 228, part of the gas makes the sealing air bag 225 expand through the second communication pipe 226, the limiting base 211 and the external structure are sealed, and the other part of the gas is transported to the one-way backflushing nozzle 224 through the first communication pipe 223, directional high-pressure gas flow is sprayed out, automatic cleaning is realized, and the cost of manual maintenance is reduced.

[0046] Specifically, the air driving part 23 comprises a high-pressure vortex air pump 231 fixed at the bottom of the limiting base 211, one side of the high-pressure vortex air pump 231 is fixed with a first connecting pipe 237, the other side of the high-pressure vortex air pump 231 is fixed with a second connecting pipe 232, one side of the second connecting pipe 232 is movably connected with a single-hole rotating pipe 236, the bottom of the limiting base 211 is fixed with a fixed vertical plate 238, the single-hole rotating pipe 236 is movably connected to one side of the fixed vertical plate 238, the surface of the single-hole rotating pipe 236 is sleeved with a fixed sleeve pipe 2310, the fixed sleeve pipe 2310 is fixed at the bottom of the high-pressure vortex air pump 231, the surface of the fixed sleeve pipe 2310 is fixed with a third exhaust pipe 234, a second exhaust pipe 235 and a first exhaust pipe 239 respectively, the surface of the single-hole rotating pipe 236 is sleeved with a rotating handle 233.

[0047] The high-pressure vortex air pump 231 provides a high-pressure air source for the whole system, and the first connecting pipe 237 can directly supply air to the external coating auxiliary part; the rotating handle 233 drives the single-hole rotating pipe 236 to rotate in the fixed sleeve pipe 2310, and the air source is divided by the single hole and the butt joint of the third exhaust pipe 234, the second exhaust pipe 235 and the first exhaust pipe 239, for example, the butt joint of the first exhaust pipe 239 can supply air to the self-cleaning part 22, and the butt joint of the third exhaust pipe 234 can supply air to the air-driven driving part 27; the fixed vertical plate 238 ensures the stable rotation of the single-hole rotating pipe 236, avoiding the influence of air leakage on air pressure.

[0048] Specifically, the dust collecting part 24 comprises a dust collecting top shell 244 arranged at the top of the limiting base 211, the top of the dust collecting top shell 244 is fixed with a first dust collecting pipe 242, the surface of the first dust collecting pipe 242 is sleeved with a limiting sleeve pipe 241, the inner wall of the limiting sleeve pipe 241 is fixed with a sealing air ring 243, and the bottom of the first dust collecting pipe 242 is provided with a second dust collecting pipe 245.

[0049] The dust collecting top shell 244 covers the upper side of the negative pressure adsorption plate 212, and collects the waste blown by the self-cleaning part 22; the first dust collecting pipe 242 and the second dust collecting pipe 245 cooperate to form a waste conveying channel, the limiting sleeve pipe 241 limits the first dust collecting pipe 242 to prevent waste leakage caused by shaking; the sealing air ring 243 fills the gap between the limiting sleeve pipe 241 and the first dust collecting pipe 242, further improving the sealing performance and ensuring efficient collection of waste.

[0050] Specifically, the self-locking piece 25 comprises a fixed block 251 fixed to one side of the limiting base 211, the inner wall of the fixed block 251 is slidably connected with a second extrusion block 254 matched with the limiting base 211, the surface of the second extrusion block 254 is sleeved with a return spring 252, the bottom of the fixed block 251 is provided with a first transmission plate 255, the top of the first transmission plate 255 is fixedly connected with a sliding vertical rod 257, the surface of the sliding vertical rod 257 is sleeved with a second transmission plate 258, the sliding vertical rod 257 is sleeved with a connecting spring 256, the top of the sliding vertical rod 257 is fixedly connected with a movable plate 2511, the bottom of the movable plate 2511 is fixedly connected with a plug-in block 2510, the surface of the limiting sleeve 241 is sleeved with a connecting plug-in plate 259 matched with the plug-in block 2510, and the top of the first transmission plate 255 is fixedly connected with a first extrusion rod 253 matched with the second extrusion block 254.

[0051] When the dust collecting piece 24 is installed, the limiting sleeve 241 extrudes the second extrusion block 254, so that the second extrusion block 254 slides along the fixed block 251 and compresses the return spring 252, the second extrusion block 254 pushes the first extrusion rod 253 to drive the first transmission plate 255 to move downward, the sliding vertical rod 257 moves downward synchronously and compresses the connecting spring 256, the movable plate 2511 drives the plug-in block 2510 to be inserted into the connecting plug-in plate 259, and the self-locking of the dust collecting piece 24 is realized.

[0052] Specifically, the dustproof piece 26 comprises a dustproof baffle 261 movably connected to the top of the limiting base 211, and the dustproof baffle 261 is fixedly connected with a damping spline seat 262 matched with the fixed seat 213.

[0053] The dustproof baffle 261 shields the coating area on the top of the limiting base 211, prevents external dust from falling into the area to be coated, and guarantees the coating quality; the damping spline seat 262 and the plug-in spline 214 of the fixed seat 213 are matched with each other to realize accurate positioning, and the damping characteristic ensures that the dustproof baffle 261 stably stays at any angle, and meets the dustproof needs of workpieces of different sizes.

[0054] Specifically, the air-driven transmission piece 27 comprises a second air chamber 274 fixed to the bottom of the coating machine base 11, one side of the inner wall of the second air chamber 274 is movably connected with a third piston rod 275, the third piston rod 275 is fixed to the bottom of the first transmission plate 255, the other side of the inner wall of the second air chamber 274 is movably connected with a second piston rod 273, the surface of the second piston rod 273 is sleeved with a rubber spring column 276, the bottom of the second air chamber 274 is fixedly connected with a three-way pipe 272, the bottom of the three-way pipe 272 is fixedly connected with a connecting hose 271, and the connecting hose 271 is fixed to the surface of the third exhaust pipe 234.

[0055] The high-pressure gas of the air driving part 23 enters the second air chamber 274 through the third exhaust pipe 234, the connecting hose 271 and the tee pipe 272, pushes the second piston rod 273 to compress the rubber spring column 276, and at the same time pushes the third piston rod 275 to move upwards, drives the first transmission plate 255 to act, and realizes the pneumatic driving of the self-locking part 25; the rubber spring column 276 pushes the second piston rod 273 to reset after the air pressure disappears, so that the third piston rod 275 drives the first transmission plate 255 to return to the initial position, and the unlocking reset is completed without manual operation.

[0056] Specifically, the filtering part 28 comprises a filtering shell 281 fixed to the bottom of the limiting base 211, the inner wall of the filtering shell 281 is fixed with a positioning block 282, one side of the positioning block 282 is movably connected with filter cotton 284, and the bottom of the filtering shell 281 is embedded with a dust collecting bottom shell 283.

[0057] The filtering shell 281 receives the waste delivered by the dust collecting part 24, the positioning block 282 fixes the position of the filter cotton 284, the filter cotton 284 filters the waste, separates the fine dust from the larger particles, and facilitates subsequent classification and processing; the dust collecting bottom shell 283 collects the filtered waste, is embedded and designed to be separately detachable for cleaning, avoids the cumbersome overall disassembly of the filtering shell 281, and improves the maintenance efficiency.

[0058] Embodiment 3, refer to Figures 7 to 13 This is the third embodiment of the application, which is based on the previous two embodiments.

[0059] Specifically, the one-way backflushing nozzle 224 is movably connected to the inner wall of the filtering shell 281, the filtering shell 281 is fixed with a communication cross pipe 286 on one side, the communication cross pipe 286 is fixed with a communication shell 287 on one side, the surface of the communication shell 287 is fixed with a one-way multi-way pipe 285, the first connecting pipe 237 is fixed to one side of the communication shell 287, and the second dust collecting pipe 245 is fixed to the surface of the filtering shell 281.

[0060] In use, if normal negative pressure cleaning is needed, the rotating handle 233 is manually rotated first to drive the single-hole rotating pipe 236 to communicate with the second exhaust pipe 235, and then the high-pressure vortex air pump 231 is started, the negative pressure generated by the air pump is sent into the communication shell 287 through the first connecting pipe 237, and then transmitted to the negative pressure adsorption plate 212 through the one-way multi-way pipe 285 and the communication cross pipe 286, so that the material on the plate is adsorbed, at the same time, the negative pressure reaches the dust collecting top shell 244 through the second dust collecting pipe 245 and the first dust collecting pipe 242, and the surface of the material is cleaned by air suction, the dust enters the filtering shell 281 along with the airflow and is intercepted by the filter cotton 284, falls into the dust collecting bottom shell 283, and the filtered gas is discharged from the second exhaust pipe 235 through the second connecting pipe 232 and the single-hole rotating pipe 236.

[0061] If switching to coating processing, rotating the rotating handle 233 to make the single-hole rotating pipe 236 communicate with the third exhaust pipe 234, the gas generated by the high-pressure vortex air pump 231 is sent into the three-way pipe 272 through the second connecting pipe 232, the third exhaust pipe 234, the connecting hose 271, and then into the second air chamber 274 to push the third piston rod 275 to move upwards, drive the first transmission plate 255 to lift, and the first extrusion rod 253 to disengage from the second extrusion block 254, and the second extrusion block 254 to reset and no longer plug with the dustproof baffle 261, and at the same time, the sliding vertical rod 257 drives the movable plate 2511 to move upwards, and the plug-in block 2510 disengages from the connecting plug-in plate 259. At this time, the dust collection top shell 244 and the dustproof baffle 261 can be removed, and the coating part 13 is started to perform coating processing.

[0062] When it is needed to clean the filter cotton 284 and fasten the dust collection bottom shell 283, rotating the rotating handle 233 to make the single-hole rotating pipe 236 communicate with the first exhaust pipe 239, the air pump gas enters the first air chamber 221 through the first exhaust pipe 239, pushes the first piston rod 2210 to drive the extrusion plate 229 to extrude the elastic air bag 228, and the gas in the air bag is sent into the sealed air bag 225 through the second communication pipe 226, the sealed air bag 225 is inflated to tightly adhere to the dust collection bottom shell 283 to achieve fastening, and when the cavity pressure in the first air chamber 221 reaches a threshold value, the excess gas is sent into the one-way backflushing jet pipe 224 through the first communication pipe 223 to spray high-pressure gas flow to the filter cotton 284 for short-term backflushing cleaning to ensure the filtering effect.

[0063] If it is needed to reinstall the dust collection part 24, first, the connecting plug-in plate 259 is pulled to be lifted to a high position, then the first dust collection pipe 242 at the bottom of the dust collection top shell 244 is inserted into the second dust collection pipe 245, and then the limiting sleeve pipe 241 is slid downwards, the sealing air ring 243 on the inner wall of the limiting sleeve pipe 241 adheres to the surface of the first dust collection pipe 242, the connecting plug-in plate 259 is lowered to below the plug-in block 2510, and then the pulling of the connecting plug-in plate 259 is released, the plug-in block 2510 is reset and inserted into the connecting plug-in plate 259 under the action of the connecting spring 256, and the installation of the dust collection part 24 is completed.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A coating machine negative pressure cleaning device based on the features of: Including, The coating assembly (1) comprises a coating machine base (11), the top of the coating machine base (11) is fixed with a coating machine cover frame (12), the inner cavity of the coating machine cover frame (12) is provided with a coating part (13), the coating part (13) is fixed to the top of the coating machine base (11), and the coating machine cover frame (12) is provided with a coating part (13); and The limiting and cleaning assembly (2) is arranged in the inner cavity of the coating machine cover frame (12) and comprises a limiting part (21) fixed to one side of the coating part (13), a dustproof part (26) placed on the top of the limiting part (21), an air driving part (23) arranged on one side of the limiting part (21), a dust collecting part (24) arranged on the top of the limiting part (21), a self-locking part (25) fixed to the surface of the dust collecting part (24), an air driving driving part (27) fixed to the bottom of the self-locking part (25), a self-cleaning part (22) fixed to one side of the air driving part (23), and a filtering part (28) arranged on the bottom of the limiting part (21); The limiting part (21) comprises a limiting base (211) fixed to the surface of the coating part (13), a negative pressure adsorption plate (212) placed on the top of the limiting base (211), and a fixing seat (213) fixed to one side of the limiting base (211); the top of the fixing seat (213) is fixed with a plug-in spline (214); The self-cleaning part (22) comprises a fixed frame (227) fixed to the bottom of the limiting base (211), an elastic air bag (228) movably connected to one side of the fixed frame (227), a second communication pipe (226) fixed to one side of the elastic air bag (228), a sealing air bag (225) fixed to one side of the second communication pipe (226), an extrusion plate (229) movably connected to one side of the elastic air bag (228), a first piston rod (2210) fixed to one side of the extrusion plate (229), a first air chamber (221) sleeved on the surface of the first piston rod (2210), a one-way pressure valve (222) fixed to the top of the first air chamber (221), a first communication pipe (223) fixed to one side of the one-way pressure valve (222), and a one-way backflushing nozzle (224) fixed to one side of the first communication pipe (223). The pneumatic drive component (23) includes a high-pressure vortex air pump (231) fixed to the bottom of the limiting base (211). A first connecting pipe (237) is fixed to one side of the high-pressure vortex air pump (231), and a second connecting pipe (232) is fixed to the other side of the high-pressure vortex air pump (231). A single-hole rotating pipe (236) is movably connected to one side of the second connecting pipe (232). A fixed vertical plate (238) is fixed to the bottom of the limiting base (211). The rotating tube (236) is movably connected to one side of the fixed vertical plate (238). The surface of the single-hole rotating tube (236) is fitted with a fixed sleeve (2310). The fixed sleeve (2310) is fixed to the bottom of the high-pressure vortex air pump (231). The surface of the fixed sleeve (2310) is respectively fixed with a third exhaust pipe (234), a second exhaust pipe (235) and a first exhaust pipe (239). The surface of the single-hole rotating tube (236) is fitted with a rotating handle (233). The dust collection component (24) includes a dust collection top shell (244) disposed on the top of the limiting base (211). A first dust collection pipe (242) is fixed on the top of the dust collection top shell (244). A limiting sleeve (241) is sleeved on the surface of the first dust collection pipe (242). A sealing gas ring (243) is fixed on the inner wall of the limiting sleeve (241). A second dust collection pipe (245) is disposed at the bottom of the first dust collection pipe (242).

2. The coating machine negative pressure cleaning device according to claim 1, wherein: The self-locking component (25) includes a fixing block (251) fixed to one side of the limiting base (211). The inner wall of the fixing block (251) is slidably connected to a second pressing block (254) that cooperates with the limiting base (211). A return spring (252) is sleeved on the surface of the second pressing block (254). A first transmission plate (255) is provided at the bottom of the fixing block (251). A sliding vertical rod (257) is fixed at the top of the first transmission plate (255). The surface of the sliding vertical rod (257) is sleeved with a return spring (252). A second transmission plate (258) is provided, a connecting spring (256) is sleeved on the sliding vertical rod (257), a movable plate (2511) is fixed at the top of the sliding vertical rod (257), a plug-in block (2510) is fixed at the bottom of the movable plate (2511), a connecting plug-in plate (259) that cooperates with the plug-in block (2510) is sleeved on the surface of the limiting sleeve (241), and a first extrusion rod (253) that cooperates with the second extrusion block (254) is fixed at the top of the first transmission plate (255).

3. The coating machine negative pressure cleaning device according to claim 2, wherein: The dustproof component (26) includes a dustproof baffle (261) movably connected to the top of the limiting base (211), and a damping spline seat (262) that cooperates with the fixed seat (213) is fixed on one side of the dustproof baffle (261).

4. The coating machine negative pressure cleaning device according to claim 3, wherein: The air drive transmission part (27) comprises a second air chamber (274) fixed at the bottom of the coating machine base (11), one side of the inner wall of the second air chamber (274) is movably connected with a third piston rod (275), the third piston rod (275) is fixed at the bottom of the first transmission plate (255), the other side of the inner wall of the second air chamber (274) is movably connected with a second piston rod (273), the surface of the second piston rod (273) is sleeved with a rubber spring column (276), the bottom of the second air chamber (274) is fixed with a three-way pipe (272), the bottom of the three-way pipe (272) is fixed with a connecting hose (271), and the connecting hose (271) is fixed on the surface of the third exhaust pipe (234).

5. The coating machine negative pressure cleaning device according to claim 4, wherein: The filter part (28) comprises a filter shell (281) fixed at the bottom of the limiting base (211), the inner wall of the filter shell (281) is fixed with a positioning block (282), one side of the positioning block (282) is movably connected with filter cotton (284), and the bottom of the filter shell (281) is embedded with a dust collecting bottom shell (283).

6. The coating machine negative pressure cleaning device according to claim 5, wherein: The one-way backflushing nozzle (224) is movably connected to the inner wall of the filter shell (281), one side of the filter shell (281) is fixed with a communicating cross pipe (286), one side of the communicating cross pipe (286) is fixed with a communicating shell (287), the surface of the communicating shell (287) is fixed with a one-way multi-way pipe (285), the first connecting pipe (237) is fixed on one side of the communicating shell (287), and the second dust collecting pipe (245) is fixed on the surface of the filter shell (281).

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