A spraying device for automobile injection molding processing and a method of using the same

Abstract

The present invention discloses a spraying device for automobile injection molding and a method for using the same, wherein the spraying device for automobile injection molding comprises: an upper spraying chamber, an air curtain mechanism, a supporting purification mechanism and a fixing mechanism; a spraying assembly is installed on the upper spraying chamber; the air curtain mechanism comprises an air guide ring frame, the air guide ring frame is connected with a plurality of connecting pipes, the other ends of the plurality of connecting pipes are fixedly connected with an air curtain ring spray frame, and a ventilation net is installed in the air curtain ring spray frame; the supporting purification mechanism comprises a lower spraying chamber, a rotating storage plate is arranged in the lower spraying chamber, and a rotating support rod is fixedly connected below the rotating storage plate. The present invention can clean up the solvent vapor generated by automobile injection molding during the spraying process in a timely manner through the setting of the corresponding mechanism, and there will be no leakage or inhalation by the staff, thereby protecting the surrounding environment and the body of the staff, and will not cause the leakage of the paint, thereby reducing unnecessary trouble for the user.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile spraying, and in particular relates to a spraying device for processing automobile injection molded parts and a use method thereof. Background Art

[0002] Automotive injection molded parts refer to products that are formed by heating, plasticizing, melting and cooling plastics using an injection molding machine. Automotive injection molded parts are mainly used for interior and exterior accessories of automobiles. When using injection molded parts, they need to be painted using a spray device to keep them consistent with the appearance of the car.

[0003] When using existing spraying devices, in order to prevent paint splashing, they are often operated in a closed space. However, the paint is prone to generate solvent vapor during the spraying process, and common solvent vapor components include toluene, xylene, etc., which can have serious effects on the health of workers and even cause toxic encephalopathy. If ventilation holes are simply set, it will not only cause pollution to the surrounding environment, but also cause paint splashing and leakage, bringing unnecessary trouble to users.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a spraying device for automobile injection molding processing and a method for using the same, which can solve the problem in the prior art that solvent vapor generated during the spraying process of the injection molding is inconvenient to handle.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A spraying device for automobile injection molding processing, comprising: an upper spraying chamber, an air curtain mechanism, a supporting purification mechanism and a fixing mechanism;

[0008] A spraying assembly is installed on the upper spraying chamber;

[0009] The air curtain mechanism is installed on the upper spray chamber, and the air curtain mechanism includes an air guide ring frame, and the air guide ring frame is connected with a plurality of connecting pipes, and the other ends of the plurality of connecting pipes are fixedly connected with an air curtain ring spray frame, and a ventilation net is installed in the air curtain ring spray frame;

[0010] The support purification mechanism is arranged below the upper spray chamber, and the support purification mechanism includes a lower spray chamber, a rotating storage plate is arranged in the lower spray chamber, a rotating support rod is fixedly connected below the rotating storage plate, a guide bent plate is installed on the lower spray chamber, an upper fixed partition is fixed on the guide bent plate, and a plurality of evenly distributed air holes are drilled on the upper fixed partition;

[0011] The fixing mechanism is installed on the rotating storage plate, and the fixing mechanism is used to fix the injection molded part, so as to facilitate the injection molded part to rotate stably.

[0012] In one or more embodiments of the present invention, the spraying assembly includes a spraying control box for controlling the uniform spraying of the paint, a delivery pipe is fixedly connected to the spraying control box for delivering the paint, and a narrow and long nozzle is installed at the other end of the delivery pipe for uniformly spraying the paint to achieve spraying of the injection molded part;

[0013] The spray control box is also fixedly connected with a delivery hose for delivering the paint, and the lifting and lowering movement of the upper spray chamber will not affect the connection and fixation of the delivery hose and the delivery of the paint.

[0014] In one or more embodiments of the present invention, a plurality of fixing columns are fixedly connected between the air curtain ring spray frame and the upper spray chamber for fixing the air curtain ring spray frame so that the air curtain ring spray frame will not shake or tilt, thereby enabling the air curtain ring spray frame to stably spray gas and facilitate the formation of an air curtain.

[0015] In one or more embodiments of the present invention, an air pump is installed on the outer wall of the upper spray chamber, and an air delivery pipe is fixedly connected between the air pump and the air guide ring frame for drawing in external gas and then delivering it to the air guide ring frame through the air delivery pipe, thereby facilitating the stable formation of the air curtain and providing an air source for the formation of the air curtain.

[0016] In one or more embodiments of the present invention, a guide ring plate is fixedly connected below the rotating storage plate to shield the gas. The guide ring plate cooperates with the guide curved plate so that the gas forming the air curtain can enter below the rotating storage plate through the guide curved plate. The gas is blocked by the guide ring plate so that the gas does not diffuse out, thereby not affecting the spraying of the paint.

[0017] A groove is bored on the rotating support rod to provide space for installing an auger and enable the purified liquid to flow upward; an auger is installed on the portion of the rotating support rod located in the groove to drive the purified liquid upward after rotation, so that the purified liquid can flow to the air vents; an auxiliary cylinder is installed on the upper fixed partition to cooperate with the use of the auger to facilitate the flow of the purified liquid to be raised.

[0018] In one or more embodiments of the present invention, a lower fixed partition is also installed in the lower spray chamber for storing the purification liquid, so that the gas with the solvent vapor contacts the purification liquid first, and the upper part of the lower fixed partition is filled with the purification liquid;

[0019] The rotating support rod is sleeved with a fixing ring for fixing the rotating support rod so that the rotating support rod will not shake or tilt, thereby improving the rotation stability of the rotating support rod. A fixing bearing is fixedly connected between the lower fixed baffle and the fixing ring so that the rotation of the rotating support rod and the fixing ring will not be affected, and there will be no leakage of the purified liquid.

[0020] A fixing sleeve is fixed below the lower fixed partition to protect the drive motor, prevent the drive motor from malfunctioning, and increase the service life of the drive motor. A drive motor fixedly connected to one end of a rotating support rod is installed in the fixing sleeve to drive the rotation of the rotating support rod, thereby providing power for driving the automobile injection molded parts to rotate and facilitating spraying of the surfaces of the automobile injection molded parts.

[0021] In one or more embodiments of the present invention, a purification component is installed on the outside of the fixed sleeve for dehumidifying, filtering and purifying the gas. The purification component includes a dehumidification layer, a filter layer and an adsorption purification layer. The dehumidification layer is used to absorb the liquid contained in the gas, the filter layer is used to filter out impurities in the gas, and the adsorption purification layer is made of activated carbon, so that the gas can be adsorbed and purified;

[0022] The inner wall of the lower spray chamber is provided with a plurality of connecting air grooves for gas flow, so that the gas can flow from above the lower fixed partition to below the lower fixed partition. The bottom of the lower spray chamber is provided with a plurality of evenly distributed exhaust holes for spraying out the purified gas to avoid gas accumulation in the lower spray chamber.

[0023] In one or more embodiments of the present invention, a pair of support frames are fixed outside the lower spray chamber to fix the electric push rod so that the electric push rod will not shake or tilt, thereby improving the stability of the electric push rod;

[0024] An electric push rod is installed in a pair of the support frames, which is used to control the telescopic movement of the piston push rod, so that the upper spray chamber can be driven to move up and down through the fixed push plate. A piston push rod is installed on the electric push rod, which is used to support the fixed push plate, thereby providing supporting force for the upper spray chamber. The other end of the piston push rod is fixedly connected to the fixed push plate. A pair of fixed push plates are fixed on the upper spray chamber, so that the piston push rod can drive the upper spray chamber to move up and down through the fixed push plate.

[0025] In one or more embodiments of the present invention, the fixing mechanism includes a plurality of sleeves for cooperating with the control screw to be tightened and screwed out, so that the control screw will not rotate when not subjected to external force, thereby not reducing the fixation of the automotive injection molded part, and the plurality of sleeves are fixed to the rotating storage plate, so that the control screw will not fall off;

[0026] The inner thread of the sleeve is connected with a control screw for supporting and fixing the rubber sleeve so that the rubber sleeve will not fall off. One end of the control screw is fixed with a rubber sleeve for fixing the automobile injection molded parts so that the automobile injection molded parts will not move during the spraying process, thereby ensuring the stability of the spraying.

[0027] A method for using a spraying device for processing automobile injection molded parts comprises the following steps:

[0028] S1. A pair of electric push rods are used to control the extension of the piston push rod, and the extension of the piston push rod will push the upper spray chamber up through a pair of fixed push plates. Then the staff will place the automotive injection molded parts on the rotating storage plate, and then rotate the rubber sleeves so that multiple rubber sleeves can be pressed against the sides of the injection molded parts, thereby achieving the effect of fixing the injection molded parts. Then the electric push rod is used to control the piston push rod to retract, so that the upper spray chamber is in contact with the lower spray chamber, achieving a closed effect.

[0029] S2, then the spray paint is transported through the delivery hose, and then the paint is sprayed out through the narrow nozzle, and the sprayed paint can be evenly sprayed on the injection molded parts on the rotating storage plate, and at this time, the start of the air pump will guide the air ring frame through the delivery air pipe, and the gas will be transported to the air curtain ring spray rack through the connecting pipe, and then dispersed through the ventilation net, so that the lower port of the air curtain ring spray rack can spray gas evenly, achieving the effect of forming an air curtain;

[0030] S3. The air curtain can not only prevent the paint from being sprayed onto the inner wall of the upper spray room or the lower spray room, but also can quickly take away the solvent vapor generated during the spraying process;

[0031] S4. After the air curtain takes away the solvent vapor, it will be sprayed on the upper fixed partition through the guide of the guide curved plate. At this time, the start of the driving motor will drive the rotating support rod to rotate, and the rotation of the rotating support rod can not only drive the injection molded part to rotate, but also drive the auger to rotate;

[0032] S5. The rotation of the auger can draw the purified liquid above the lower fixed baffle upward, then flow on the upper fixed baffle, and flow downward through the air holes, and the gas will also be sprayed downward through the air holes, so that the gas and the purified liquid are fully in contact, and the purified liquid can also be sprayed out in the form of water mist by the pressure of the gas, so as to improve the contact effect between the gas and the purified liquid, thereby improving the purification effect;

[0033] S6. After the gas has come into contact with the purification liquid, it will be transported to the bottom of the lower fixed partition through the connecting gas groove, and then be dried, filtered and adsorbed and purified by the purification component, so that the harmful components in the solvent vapor are completely removed, and finally the gas is discharged to the outside through the exhaust hole.

[0034] Compared with the prior art, the present invention, through the setting of corresponding mechanisms, enables the solvent vapor generated during the spraying process of automobile injection molding parts to be cleaned up in time, and will not leak or be inhaled by workers, thereby safeguarding the surrounding environment and protecting the health of workers, and will not cause leakage of paint, reducing unnecessary trouble for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A three-dimensional diagram of a spraying device for processing automobile injection molded parts according to an embodiment of the present invention;

[0037] Figure 2 A cross-sectional view of a spraying device for processing automobile injection molded parts according to an embodiment of the present invention;

[0038] Figure 3 for Figure 2 The schematic diagram of the structure shown at A in the middle;

[0039] Figure 4 for Figure 2 The schematic diagram of the structure shown at B in the figure;

[0040] Figure 5 for Figure 2 The schematic diagram of the structure shown at C in the middle;

[0041] Figure 6 This is a state diagram of placing or taking out a spraying device for processing automobile injection molded parts in one embodiment of the present invention;

[0042] Figure 7 for Figure 6 The schematic diagram of the structure shown at D in the figure;

[0043] Figure 8 It is a structural schematic diagram of an air curtain ring spray rack in one embodiment of the present invention;

[0044] Fig. 9 It is a schematic diagram of the partial structure of the guide bent plate in one embodiment of the present invention.

[0045] Description of main reference numerals:

[0046] 1-upper spray chamber, 101-spray assembly, 102-spray control box, 103-delivery pipe, 104-narrow nozzle, 105-delivery hose, 2-air curtain mechanism, 201-air guide ring frame, 202-connecting pipe, 203-air curtain ring spray rack, 204-ventilation net, 205-fixed column, 206-air pump, 207-delivery air pipe, 3-support purification mechanism, 301-lower spray chamber, 302-rotating storage plate, 303-rotating support rod, 304-guide curved plate, 305-upper fixed Partition, 306-air vent, 307-guide ring plate, 308-auxiliary cylinder, 309-auger, 310-lower fixed partition, 311-fixed collar, 312-fixed bearing, 313-fixed sleeve, 314-drive motor, 315-purification component, 316-exhaust hole, 317-connecting air groove, 318-support frame, 319-electric push rod, 320-piston push rod, 321-fixed push plate, 4-fixing mechanism, 401-sleeve, 402-control screw, 403-rubber sleeve. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0048] like Figure 1-Figure 9 As shown, a spraying device for automobile injection molding processing in one embodiment of the present invention includes: an upper spraying chamber 1, an air curtain mechanism 2, a supporting purification mechanism 3 and a fixing mechanism 4.

[0049] like Figure 1-Figure 6 As shown, a spraying assembly 101 is installed on the upper spraying room 1 for controlling the spraying of the paint. The spraying assembly 101 includes a spraying control box 102 for controlling the uniform spraying of the paint, a delivery pipe 103 is fixedly connected to the spraying control box 102 for delivering the paint, and a narrow and long nozzle 104 is installed at the other end of the delivery pipe 103 for uniformly spraying the paint to achieve spraying of the injection molded parts.

[0050] In addition, a delivery hose 105 is fixedly connected to the spray control box 102 for delivering the paint, and the lifting and lowering movement of the upper spray chamber 1 will not affect the connection and fixation of the delivery hose 105 and the delivery of the paint.

[0051] like Figure 1-Figure 3As shown, the air curtain mechanism 2 is installed on the upper spray chamber 1, and the air curtain mechanism 2 includes an air guide ring frame 201, which is used to disperse and transport the gas. The air guide ring frame 201 is connected with multiple connecting pipes 202, which are used to transport the gas to the air curtain ring spray rack 203 to realize the flow of gas. The other end of the multiple connecting pipes 202 is fixedly connected to the air curtain ring spray rack 203, which is used to spray the air curtain downward, so that the sprayed paint is not easy to diffuse to the inner wall of the upper spray chamber 1 or the lower spray chamber 301 through the air curtain, which is convenient for cleaning. In addition, the air curtain can quickly take away the solvent vapor generated by spraying, and then purify it, so that harmful components will not diffuse out.

[0052] Specifically, a ventilation net 204 is installed in the air curtain ring spray frame 203 to disperse the gas so that the lower port of the air curtain ring spray frame 203 can spray the gas evenly, thereby facilitating the formation of an air curtain.

[0053] In addition, a plurality of fixing columns 205 are fixedly connected between the air curtain ring spray frame 203 and the upper spray chamber 1 for fixing the air curtain ring spray frame 203 so that the air curtain ring spray frame 203 will not shake or tilt, thereby enabling the air curtain ring spray frame 203 to stably spray gas and facilitate the formation of an air curtain.

[0054] like Figure 1-Figure 6 As shown, an air pump 206 is installed on the outer wall of the upper spray chamber 1, and an air delivery pipe 207 is fixedly connected between the air pump 206 and the air guide ring frame 201, which is used to draw in external gas and then deliver it to the air guide ring frame 201 through the air delivery pipe 207, thereby facilitating the stable formation of the air curtain and providing an air source for the formation of the air curtain.

[0055] like Figure 1-Figure 6 As shown, the support purification mechanism 3 is arranged below the upper spray chamber 1, and the support purification mechanism 3 includes a lower spray chamber 301, which is used to cooperate with the upper spray chamber 1 to form a spray chamber, so that the sprayed paint will not spread out, which is convenient for cleaning. A rotating storage plate 302 is arranged in the lower spray chamber 301, which is used to place the automobile injection molding parts, so as to fix them conveniently, so that they will not move during the spraying process, and ensure the uniformity of the spraying.

[0056] like Figure 1-Figure 4 As shown, a rotating support rod 303 is fixedly connected to the bottom of the rotating storage plate 302, which is used to support the rotating storage plate 302 and drive the rotating storage plate 302 to rotate, and plays a supporting and transmission role. A guide bent plate 304 is installed on the lower spray chamber 301, which is used to cooperate with the guide ring plate 307 to guide the gas, so that the gas forming the air curtain can enter the bottom of the rotating storage plate 302, and then flow downward through the air vents 306.

[0057] like Figure 1-Figure 4As shown, an upper fixed baffle 305 is fixed on the guide curved plate 304 for supporting the purified liquid and providing a certain barrier to the gas. A plurality of evenly distributed air holes 306 are drilled on the upper fixed baffle 305 for the purified liquid to flow downward. Due to the pressure of the gas, the gas will drive the purified liquid to be ejected together, thereby making the gas fully contact with the purified liquid, thereby improving the purification effect of the solvent vapor in the gas.

[0058] Specifically, a guide ring plate 307 is fixedly connected below the rotating storage plate 302 to block the gas. Through the cooperation between the guide ring plate 307 and the guide curved plate 304, the gas forming the air curtain can pass through the guide curved plate 304 and enter below the rotating storage plate 302. The guide ring plate 307 is used to block the gas, so that the gas will not diffuse out, thereby not affecting the spraying of the paint.

[0059] like Figure 1-Figure 4 As shown, a groove is cut on the rotating support rod 303 to provide space for installing the auger 309 and enable the purified liquid to flow upward. The part of the rotating support rod 303 located in the groove is installed with the auger 309, which is used to drive the purified liquid to be transported upward after rotation, so that the purified liquid can flow to the air vent 306. An auxiliary cylinder 308 is installed on the upper fixed partition 305 to cooperate with the use of the auger 309 to facilitate the flow of the purified liquid.

[0060] like Figure 1-Figure 5 As shown, a lower fixed partition 310 is also installed in the lower spray chamber 301 for storing purification liquid, so that the gas carrying the solvent vapor contacts the purification liquid first, and the upper part of the lower fixed partition 310 is filled with purification liquid.

[0061] like Figure 1-Figure 5 As shown, a fixing ring 311 is sleeved on the rotating support rod 303 to fix the rotating support rod 303 so that the rotating support rod 303 will not shake or tilt, thereby improving the rotation stability of the rotating support rod 303. A fixing bearing 312 is fixedly connected between the lower fixing partition 310 and the fixing ring 311 to prevent the rotation of the rotating support rod 303 and the fixing ring 311 from being affected and preventing the purification liquid from leaking.

[0062] like Figure 1-Figure 5 As shown, a fixing sleeve 313 is fixed below the lower fixing partition 310 to protect the driving motor 314, prevent the driving motor 314 from malfunctioning, and increase the service life of the driving motor 314. The driving motor 314 fixedly connected to one end of the rotating support rod 303 is installed in the fixing sleeve 313 to drive the rotating support rod 303 to rotate, provide power for driving the automobile injection molded parts to rotate, and facilitate spraying the surface of the automobile injection molded parts.

[0063] Specifically, a purification component 315 is installed on the outside of the fixed sleeve 313, which is used to dehumidify, filter and purify the gas. The purification component 315 includes a dehumidification layer, a filter layer and an adsorption purification layer. The dehumidification layer is used to absorb the liquid contained in the gas, and the filter layer is used to filter out impurities in the gas. The adsorption purification layer is made of activated carbon, so that the gas can be adsorbed and purified.

[0064] In addition, the inner wall of the lower spray chamber 301 is provided with a plurality of connecting air grooves 317 for gas flow, so that the gas can flow from above the lower fixed partition 310 to below the lower fixed partition 310, and the bottom of the lower spray chamber 301 is provided with a plurality of evenly distributed exhaust holes 316 for spraying out the purified gas to avoid gas accumulation in the lower spray chamber 301.

[0065] like Figure 1-Figure 6 As shown, a pair of support frames 318 are fixed outside the lower spray chamber 301, which are used to fix the electric push rod 319, so that the electric push rod 319 will not shake or tilt, and the stability of the electric push rod 319 is improved. The electric push rod 319 is installed in the pair of support frames 318, which is used to control the telescopic movement of the piston push rod 320, so that the upper spray chamber 1 can be driven to move up and down through the fixed push plate 321. The piston push rod 320 is installed on the electric push rod 319, which is used to support the fixed push plate 321, thereby providing support force for the upper spray chamber 1.

[0066] Specifically, the other end of the piston push rod 320 is fixedly connected to a fixed push plate 321 , and a pair of fixed push plates 321 are both fixed on the upper spray chamber 1 , so that the piston push rod 320 can drive the upper spray chamber 1 to move up and down through the fixed push plates 321 .

[0067] like Figure 1-Figure 7 As shown, the fixing mechanism 4 is installed on the rotating storage plate 302, and the fixing mechanism 4 is used to fix the injection molded parts, so as to facilitate the stable rotation of the injection molded parts. The fixing mechanism 4 includes a plurality of sleeves 401, which are used to cooperate with the control screw 402 to tighten and unscrew, so that the control screw 402 will not rotate when not subjected to external force, thereby not reducing the fixation of the automobile injection molded parts. The plurality of sleeves 401 are fixed on the rotating storage plate 302, so that the control screw 402 will not fall off.

[0068] like Figure 1-Figure 7 As shown, the inner thread of the sleeve 401 is connected with a control screw 402, which is used to support and fix the rubber sleeve 403 so that the rubber sleeve 403 will not fall off. One end of the control screw 402 is fixed with a rubber sleeve 403, which is used to fix the automobile injection molded part so that the automobile injection molded part will not move during the spraying process, thereby ensuring the stability of the spraying.

[0069] A method for using a spraying device for processing automobile injection molded parts comprises the following steps:

[0070] S1. The piston push rod 320 is extended by a pair of electric push rods 319, and the extension of the piston push rod 320 pushes the upper spray chamber 1 to rise through a pair of fixed push plates 321. Then the staff places the automobile injection molded parts on the rotating storage plate 302, and then rotates the rubber sleeve 403 so that the multiple rubber sleeves 403 can be pressed against the side of the injection molded parts, thereby achieving the effect of fixing the injection molded parts. Then, the piston push rod 320 is retracted by the electric push rod 319, so that the upper spray chamber 1 is in contact with the lower spray chamber 301, thereby achieving a closed effect.

[0071] S2, the spray paint is then transported through the delivery hose 105, and then the paint is sprayed out through the narrow nozzle 104, and the sprayed paint can be evenly sprayed on the injection molded parts on the rotating storage plate 302, and at this time, the start of the air pump 206 will be through the delivery air pipe 207 into the air guide ring frame 201, and the gas will be transported to the air curtain ring spray rack 203 through the connecting pipe 202, and then dispersed through the ventilation net 204, so that the lower port of the air curtain ring spray rack 203 can spray gas evenly, achieving the effect of forming an air curtain;

[0072] S3, the air curtain can not only prevent the paint from being sprayed onto the inner wall of the upper spraying room 1 or the lower spraying room 301, but also can quickly take away the solvent vapor generated during the spraying process;

[0073] S4, after the air curtain takes away the solvent vapor, it will be sprayed on the upper fixed partition 305 through the guide of the guide curved plate 304. At this time, the start of the driving motor 314 will drive the rotating support rod 303 to rotate, and the rotation of the rotating support rod 303 can not only drive the injection molded part to rotate, but also drive the auger 309 to rotate;

[0074] S5. The rotation of the auger 309 can draw the purified liquid above the lower fixed baffle 310 upward, and then flow on the upper fixed baffle 305 and flow downward through the air vent 306. The gas will also be sprayed downward through the air vent 306, so that the gas and the purified liquid are in full contact. The purified liquid can also be sprayed out in the form of water mist by the pressure of the gas, so as to improve the contact effect between the gas and the purified liquid, thereby improving the purification effect.

[0075] S6. After the gas has come into contact with the purification liquid, it will be transported to the bottom of the lower fixed partition 310 through the connecting gas groove 317, and then be dried, filtered and adsorbed and purified by the purification element 315, so that the harmful components in the solvent vapor are completely removed, and finally the gas is discharged to the outside through the exhaust hole 316.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A spraying device for automobile injection molding processing, characterized in that: include: An upper spraying room, wherein a spraying assembly is installed on the upper spraying room; An air curtain mechanism is installed on the upper spray chamber, the air curtain mechanism comprises an air guide ring frame, the air guide ring frame is connected with a plurality of connecting pipes, the other ends of the plurality of connecting pipes are fixedly connected with an air curtain ring spray frame, and a ventilation net is installed in the air curtain ring spray frame; A support purification mechanism is arranged below the upper spray chamber, the support purification mechanism comprises a lower spray chamber, a rotating storage plate is arranged in the lower spray chamber, a rotating support rod is fixedly connected below the rotating storage plate, a guide bent plate is installed on the lower spray chamber, an upper fixed baffle is fixed on the guide bent plate, a plurality of evenly distributed air holes are drilled on the upper fixed baffle, a guide ring plate is fixedly connected below the rotating storage plate, a groove is drilled on the rotating support rod, an auger is installed on the part of the rotating support rod located in the groove, an auxiliary cylinder is installed on the upper fixed baffle, a lower fixed baffle is also installed in the lower spray chamber, and a purification liquid is filled above the lower fixed baffle, and the purification liquid above the lower fixed baffle can be drawn upward by the rotation of the auger, and then flows on the upper fixed baffle and flows downward through the air holes, and the gas will also be sprayed downward through the air holes, so that the gas is fully in contact with the purification liquid, and the purification liquid can also be sprayed out in the form of water mist by the pressure of the gas, so as to improve the contact effect between the gas and the purification liquid, thereby improving the purification effect; A fixing mechanism is installed on the rotating storage plate, and the fixing mechanism is used to fix the injection molded part so as to facilitate the stable rotation of the injection molded part.

2. A spraying device for automobile injection molding according to claim 1, characterized in that: The spraying assembly comprises a spraying control box, a delivery pipe is fixedly connected to the spraying control box, a narrow and long spray head is installed at the other end of the delivery pipe, and a delivery hose is also fixedly connected to the spraying control box.

3. A spraying device for automobile injection molding according to claim 1, characterized in that: A plurality of fixing columns are fixedly connected between the air curtain ring spray frame and the upper spray chamber.

4. A spraying device for automobile injection molding according to claim 1, characterized in that: An air pump is installed on the outer wall of the upper spray chamber, and an air delivery pipe is fixedly connected between the air pump and the air guide ring frame.

5. A spraying device for automobile injection molding according to claim 1, characterized in that: A fixed collar is sleeved on the rotating support rod, a fixed bearing is fixedly connected between the lower fixed baffle and the fixed collar, a fixed sleeve is fixed below the lower fixed baffle, and a driving motor fixedly connected to one end of the rotating support rod is installed in the fixed sleeve.

6. A spraying device for automobile injection molding processing according to claim 5, characterized in that: A purification component is installed on the outside of the fixed sleeve, and the purification component includes a dehumidification layer, a filter layer and an adsorption purification layer. The inner wall of the lower spraying chamber is provided with a plurality of connecting air grooves, and the bottom of the lower spraying chamber is provided with a plurality of evenly distributed exhaust holes.

7. A spraying device for automobile injection molding according to claim 1, characterized in that: A pair of support frames are fixed outside the lower spray chamber, and electric push rods are installed in the pair of support frames. A piston push rod is installed on the electric push rod. The other end of the piston push rod is fixedly connected to a fixed push plate, and the pair of fixed push plates are fixed on the upper spray chamber.

8. A spraying device for automobile injection molding according to claim 1, characterized in that: The fixing mechanism comprises a plurality of sleeves, and the plurality of sleeves are all fixed on the rotating storage plate. A control screw is connected to the inner thread of the sleeve, and a rubber sleeve is fixed to one end of the control screw.

9. A method for using a spray coating device for automobile injection molding according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. A pair of electric push rods are used to control the extension of the piston push rod, and the extension of the piston push rod will push the upper spray chamber up through a pair of fixed push plates. Then the staff will place the automotive injection molded parts on the rotating storage plate, and then rotate the rubber sleeves so that multiple rubber sleeves can be pressed against the sides of the injection molded parts, thereby achieving the effect of fixing the injection molded parts. Then the electric push rod is used to control the piston push rod to retract, so that the upper spray chamber is in contact with the lower spray chamber, achieving a closed effect. S2, then the spray paint is transported through the delivery hose, and then the paint is sprayed out through the narrow nozzle, and the sprayed paint can be evenly sprayed on the injection molded parts on the rotating storage plate, and at this time, the start of the air pump will guide the air ring frame through the delivery air pipe, and the gas will be transported to the air curtain ring spray rack through the connecting pipe, and then dispersed through the ventilation net, so that the lower port of the air curtain ring spray rack can spray gas evenly, achieving the effect of forming an air curtain; S3. The air curtain can not only prevent the paint from being sprayed onto the inner wall of the upper spray room or the lower spray room, but also can quickly take away the solvent vapor generated during the spraying process; S4. After the air curtain takes away the solvent vapor, it will be sprayed on the upper fixed partition through the guide of the guide curved plate. At this time, the start of the driving motor will drive the rotating support rod to rotate, and the rotation of the rotating support rod can not only drive the injection molded part to rotate, but also drive the auger to rotate; S5. The rotation of the auger can draw the purified liquid above the lower fixed baffle upward, then flow on the upper fixed baffle, and flow downward through the air holes, and the gas will also be sprayed downward through the air holes, so that the gas and the purified liquid are fully in contact, and the purified liquid can also be sprayed out in the form of water mist by the pressure of the gas, so as to improve the contact effect between the gas and the purified liquid, thereby improving the purification effect; S6. After the gas has come into contact with the purification liquid, it will be transported to the bottom of the lower fixed partition through the connecting gas groove, and then be dried, filtered and adsorbed and purified by the purification component, so that the harmful components in the solvent vapor are completely removed, and finally the gas is discharged to the outside through the exhaust hole.

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