Multi-directional spraying equipment for surfaces of plastic products

Abstract

The invention relates to the technical field of plastic pipe spraying equipment, and particularly discloses multi-directional spraying equipment for the surface of a plastic product, which is used for solving the problem of large limitation of a spraying object in the prior art. Comprising a spraying shell, the spraying shell is of a box body structure with the two ends open, a machining center cylinder is arranged in the center of the spraying shell, a fixing outer ring is rotationally arranged on the outer side of the machining center cylinder, and the outer side of the fixing outer ring is connected with the inner wall of the spraying shell through a positioning rod; in this way, the machining center cylinder can freely rotate on the inner side of the fixed outer ring, the machining center cylinder is connected with a rotation driving piece used for driving the machining center cylinder to rotate, and a polishing assembly used for pretreating the surface of the pipe fitting is arranged on the machining center cylinder. The device is designed according to existing needs, pipe fittings do not need to be cut, pre-polishing and dust removal and subsequent continuous spraying and curing can be conducted on the plastic pipe fittings, and the machining efficiency is greatly improved through assembly line type operation.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe spraying equipment, in particular to a multi-directional spraying equipment for the surface of plastic products. Background Art

[0002] Plastic pipe fittings are commonly used parts in life. When they are put into use, they need to be sprayed according to the requirements of different scenarios of customers. Before spraying, the outer ring surface of the tubular plastic parts is easily adhered to impurities and scratched because the tubular plastic parts are exposed to the outside for a long time during transportation. The scratches are easily visible after spraying the paint, which affects the spraying quality of the tubular plastic parts. The existing patent number CN117463548B discloses a spraying device based on plastic product processing. The device fixes both ends of the pipe fitting by expansion positioning. However, this device needs to cut the pipe fitting into an appropriate length before spraying, resulting in low processing efficiency. In addition, the material needs to be replaced after the pipe fitting is sprayed. This repetitive tooling positioning is not conducive to improving processing efficiency.

[0003] Based on this, a multi-directional spraying device for the surface of plastic products is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-directional spraying device for the surface of plastic products, which solves the problem of large limitations on spraying objects in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A multi-directional spraying device for the surface of plastic products, including a spraying shell, which is a box structure with openings at both ends, a machining center cylinder is provided at the center of the spraying shell, a fixed outer ring is rotatably provided on the outside of the machining center cylinder, and the outside of the fixed outer ring is connected to the inner wall of the spraying shell through a positioning rod, so that the machining center cylinder can rotate freely on the inside of the fixed outer ring, the machining center cylinder is connected to a rotating drive member for driving it to rotate, a polishing assembly for pre-treating the surface of the pipe is provided on the machining center cylinder, support roller groups for supporting the pipe are provided at the port positions on both sides of the spraying shell, and the front and rear ends of the product can be supported and guided by the support roller group, which is helpful for polishing, a dust suction assembly for sucking away polishing dust is provided downstream of the polishing assembly, a spray assembly for spraying the pipe is provided downstream of the dust suction assembly, and a curing assembly for quickly curing the spray layer is provided downstream of the spray assembly.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the dust suction assembly includes a negative pressure ring box rotatably arranged on the outside of the machining center cylinder, and a plurality of negative pressure dust suction holes are provided on the surface of the machining center cylinder where the negative pressure ring box is located. The negative pressure ring box is connected to the inner wall of the spray shell through a dust suction positioning rod, and the air suction port of the negative pressure ring box is connected to the air suction pump through a conduit, and the exhaust end of the air suction pump is connected to the purification box through an exhaust conduit, and an activated carbon filter group is arranged inside the purification box.

[0007] In an optional scheme: the spray assembly includes a buffer liquid ring box rotatably arranged on the outside of the machining center cylinder, the buffer liquid ring box is connected and fixed to the inner wall of the spray shell through a paint positioning rod, a sealing ring is provided between the buffer liquid ring box and the machining center cylinder, and a nozzle fixing ring is provided inside the machining center cylinder where the buffer liquid ring box is located, and a plurality of atomizing nozzles are provided on the nozzle fixing ring, and the feed of the atomizing nozzle passes through the machining center cylinder and extends to the inside of the buffer liquid ring box, the feed end of the buffer liquid ring box is connected to the discharge end of the feed pump, and the suction end of the feed pump extends to the inside of the paint box, and the paint box and the feed pump are both fixedly arranged on the outside of the spray shell.

[0008] In an optional solution: the curing component includes a curing lamp rack arranged at the tail of the machining center cylinder, the curing lamp rack is coaxially arranged with the machining center cylinder, the outer side of the curing lamp rack is connected to the inner wall of the spray shell through a fixed positioning rod, and the inner wall of the curing lamp rack is distributed with a drying lamp group for heating.

[0009] In an optional scheme: the polishing assembly includes a plurality of rotating sleeves distributed in an array on the machining center cylinder, the rotating sleeve is rotatably connected to the machining center cylinder, a grinding column is slidably provided on the rotating sleeve, a rotation limiter is provided between the grinding column and the rotating sleeve, a friction wheel is fixedly provided on the outer side of the rotating sleeve, and a transmission tooth surface in friction contact with the friction wheel is provided on the side of the fixed outer ring; the lower end of the grinding column passes through the rotating sleeve and extends to the interior of the machining center cylinder; a grinding head is provided at the inner end of the grinding column, a rotating end cover is provided at the upper end of the grinding column, the rotating end cover and the end of the rotating sleeve are connected by a fine-tuning spring, a connecting column is rotatably provided at the upper end of the rotating end cover, a pressing ball is provided at the upper end of the connecting column, and a plurality of grinding heads are distributed in an array to form a grinding ring group, and an adjustment part for adjusting the diameter of the grinding ring group is provided in the spray shell.

[0010] In an optional scheme: the adjusting part includes an adjusting ring frame sleeved on the outside of the machining center cylinder, at least two pairs of horizontal guide sleeves are provided at the end of the adjusting ring frame, a horizontal guide rod is slidably provided in the horizontal guide sleeve, the end of the horizontal guide rod is connected to the inner wall of the spray shell through a connecting rod, the side of the adjusting ring frame close to the pressing ball is a conical pressing surface, and the adjusting ring frame is connected to a pushing unit for driving it to move along the axis of the machining center cylinder.

[0011] In an optional solution: the pushing unit includes an adjustment slot opened on the top of the spray shell, an adjustment slide seat is slidably provided in the adjustment slot, an adjustment connecting rod connected to an adjustment ring frame is provided at the lower end of the adjustment slide seat, an adjustment screw is threaded on the adjustment ring frame, one end of the adjustment screw is rotatably connected to a bearing block on the spray shell, and the other end of the adjustment screw is connected to an output end of an adjustment motor on the spray shell.

[0012] In an optional scheme: the support roller group includes a floating hanger slidably set on the spray shell, the lower end of the floating hanger is connected to the support side plate, and a plurality of support rollers are rotatably provided on the outer side of the support side plate. The support roller is a structure with large ends and small center, which is helpful for centering the pipe fittings. The upper ends of the two floating hangers are connected by a floating connecting frame, and a plurality of floating guide rods are slidably provided on the floating connecting frame. The outer side of the floating guide rod is provided with a floating spring connecting the floating connecting frame and the top of the spray shell. A transmission seat is provided at the center of the floating connecting frame, and a transmission bevel groove is opened on the transmission seat. A transmission pin matching the transmission bevel groove is provided on the side of the adjusting slide, and the transmission pin and the adjusting slide are rotatably connected.

[0013] In an optional solution: a sliding side plate is also slidably provided on the floating hanger, a sliding hole matching the floating hanger is provided on the sliding side plate, the sliding side plate and the supporting side plate are connected by a plurality of downward pressure springs, and a plurality of downward pressure rollers are rotatably provided on the outer side of the sliding side plate.

[0014] In an optional solution, elastic layers are provided on the outer sides of the lower pressure roller and the support roller.

[0015] In an optional solution: a cache air cavity is provided inside the grinding head, a plurality of air inlet notches are provided on the outside of the cache air cavity, a guide blade is provided at each air inlet notch, the guide blade is used to guide the airflow into the cache air cavity, an avoidance ring groove is provided on the outside of the lower end of the grinding head, a plurality of blowing holes connected to the cache air cavity are distributed at the position of the avoidance ring groove, and the axis of the blowing hole is facing the axis position of the grinding head.

[0016] In an optional solution: the rotation limiting member includes a rotation limiting protrusion arranged on the outer side of the grinding column, and the inner wall of the rotating sleeve is provided with a limiting groove that slidably matches the rotation limiting protrusion.

[0017] In an optional solution: the rotating drive member includes a driving gear arranged on the outside of the machining center cylinder, the driving gear is meshed with the driving gear, the driving gear is arranged at the output end of the driving motor, a motor frame is arranged inside the spray housing, and the driving gear is installed on the motor frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is designed according to existing needs. It does not need to cut the pipe fittings. The plastic pipe fittings can be pre-grinded and dusted, and then continuously sprayed and cured. The flow-type operation greatly improves the processing efficiency. The grinding diameter can be adjusted as needed. With the adjustment of the grinding diameter, the support height can also be adjusted synchronously accordingly, which reduces the adjustment steps and further improves the convenience of operation.

[0019] 2. The present invention improves the grinding position, and can generate a blowing airflow during grinding, thereby assisting in removing dust from the surface of the pipe fitting, and can also cool the grinding position to reduce damage to the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0021] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of one side of the present invention.

[0023] Figure 4 It is a schematic diagram of the other side structure of the interior of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the machining center cylinder of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the nozzle fixing ring of the present invention.

[0026] Figure 7 This is a schematic diagram of the upper structure of the grinding head after optimization of the present invention.

[0027] Figure 8 This is a schematic diagram of the lower structure of the grinding head after optimization of the present invention.

[0028] Fig. 9 This is a schematic diagram of the optimized structure of the support roller group of the present invention.

[0029] Reference numerals: spray housing 100, adjusting motor 101, adjusting slide 102, adjusting screw 103, adjusting slide seat 104; Floating spring 201, floating guide rod 202, floating connecting frame 203, transmission pin 204, transmission seat 205, transmission chute 206, floating suspension rod 207, supporting side plate 208, supporting roller 209, lower pressure roller 210, lower sliding side plate 211, lower sliding hole 212, lower pressure spring 213; Machining center cylinder 300, fixed outer ring 301, driving gear 302, driving motor 303, driving gear 304, motor frame 305; Adjusting connecting rod 400, adjusting ring frame 401, transmission tooth surface 402, grinding head 403, pressing ball 404, fine-tuning spring 405, friction wheel 406, rotating sleeve 407, horizontal guide sleeve 408, horizontal guide rod 409, rotating end cover 410, rotating limit protrusion 411, connecting column 412, guide blade 413, buffer air cavity 414, avoidance ring groove 415, blowing hole 416; Curing lamp rack 500, drying lamp set 501; Negative pressure ring box 601, negative pressure dust suction hole 600, air pump 602, exhaust duct 603, purification box 604; Buffer liquid ring box 700, atomizing nozzle 701, feed pump 702, paint box 703, liquid inlet pipe 704, nozzle fixing ring 705. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figure 1-Figure 9 As shown, an embodiment of the present invention provides a multi-directional spraying device for the surface of plastic products, including a spraying shell 100, the spraying shell 100 is a box structure with openings at both ends, a machining center cylinder 300 is provided at the center position of the spraying shell 100, a fixed outer ring 301 is rotatably provided on the outside of the machining center cylinder 300, and the outside of the fixed outer ring 301 is connected to the inner wall of the spraying shell 100 through a positioning rod, so that the machining center cylinder 300 can rotate freely inside the fixed outer ring 301, and the machining center cylinder 300 is connected to a rotating drive member for driving its rotation. The machining center cylinder 300 is provided with a polishing assembly for pre-treating the surface of the pipe fittings. The ports on both sides of the spray shell 100 are provided with support roller groups for supporting the pipe fittings. The front and rear ends of the product can be supported and guided by the support roller groups, which is helpful for polishing. A dust suction assembly for sucking away polishing dust is provided downstream of the polishing assembly. A spray assembly for spraying the pipe fittings is provided downstream of the dust suction assembly. A curing assembly for quickly curing the spray layer is provided downstream of the spray assembly. In this way, the uncut pipe fittings can be directly passed through the machining center cylinder 300, thereby completing continuous processing, which greatly ensures the processing efficiency. The dust suction assembly includes a negative pressure ring box 601 rotatably arranged on the outside of the machining center cylinder 300, and a plurality of negative pressure dust suction holes 600 are arranged on the surface of the machining center cylinder 300 where the negative pressure ring box 601 is located, and the negative pressure ring box 601 is connected to the inner wall of the spray shell 100 through a dust suction positioning rod, and the suction port of the negative pressure ring box 601 is connected to the suction pump 602 through a conduit, and the exhaust end of the suction pump 602 is connected to the purification box 604 through an exhaust conduit 603, and an activated carbon filter group is arranged inside the purification box 604, so that the dust generated inside the machining center cylinder 300 can be sucked away by the suction pump 602, and the dust enters the negative pressure ring box 601 along the negative pressure dust suction holes 600, and then is sent to the purification box 604 to complete purification, thereby reducing the pollution of the exhaust gas to the environment, and the inner wall of the machining center cylinder 300 where the negative pressure dust suction holes 600 are located can also be provided with a brush, which helps to optimize the cleaning effect; The spraying assembly includes a buffer liquid ring box 700 rotatably arranged on the outside of the machining center cylinder 300, the buffer liquid ring box 700 is connected and fixed to the inner wall of the spraying shell 100 through a paint positioning rod, a sealing ring is provided between the buffer liquid ring box 700 and the machining center cylinder 300, and a nozzle fixing ring 705 is provided inside the machining center cylinder 300 where the buffer liquid ring box 700 is located, and a plurality of atomizing nozzles 701 are provided on the nozzle fixing ring 705, and the feed of the atomizing nozzle 701 passes through the machining center cylinder 300 and extends to Inside the buffer liquid ring box 700, the feed end of the buffer liquid ring box 700 is connected with the discharge end of the feed pump 702, and the suction end of the feed pump 702 extends to the inside of the paint box 703. The paint box 703 and the feed pump 702 are both fixedly arranged outside the spray housing 100. Under the action of the feed pump 702, the paint inside the paint box 703 will be sent into the buffer liquid ring box 700, and then the paint will enter the atomizing nozzle 701 along the liquid inlet pipe 704, and then be evenly sprayed on the surface of the pipe to complete the spraying operation; The curing assembly includes a curing lamp rack 500 disposed at the rear of the machining center tube 300, the curing lamp rack 500 is coaxially disposed with the machining center tube 300, the outer side of the curing lamp rack 500 is connected to the inner wall of the spray shell 100 through a fixed positioning rod, and a drying lamp group 501 for heating is distributed on the inner wall of the curing lamp rack 500, so that the spray layer can be quickly cured when the pipe passes through the curing lamp rack 500; The polishing assembly includes a plurality of rotating sleeves 407 distributed in an array on the machining center cylinder 300, the rotating sleeve 407 is rotatably connected to the machining center cylinder 300, a grinding column is slidably provided on the rotating sleeve 407, a rotation limiter is provided between the grinding column and the rotating sleeve 407, a friction wheel 406 is fixedly provided on the outer side of the rotating sleeve 407, and a transmission tooth surface 402 in friction contact with the friction wheel 406 is provided on the side of the fixed outer ring 301. In this way, when the machining center cylinder 300 rotates, the friction between the fixed outer ring 301 and the friction wheel 406 will drive the rotating sleeve 407 to rotate rapidly, thereby providing dynamic grinding. force, the lower end of the grinding column passes through the rotating sleeve 407 and extends to the inside of the machining center tube 300, the inner end of the grinding column is provided with a grinding head 403, the upper end of the grinding column is provided with a rotating end cover 410, the rotating end cover 410 and the end of the rotating sleeve 407 are connected by a fine-tuning spring 405, the upper end of the rotating end cover 410 is rotatably provided with a connecting column 412, the upper end of the connecting column 412 is provided with a pressing ball 404, and multiple grinding heads 403 are distributed in an array to form a grinding ring group, and an adjusting member for adjusting the diameter of the grinding ring group is provided in the spray housing 100, which can be adjusted according to the diameter of the plastic pipe through the adjusting member, thereby improving the adaptability of the product; The adjusting member comprises an adjusting ring frame 401 sleeved on the outside of the machining center tube 300, at least two pairs of horizontal guide sleeves 408 are arranged at the end of the adjusting ring frame 401, a horizontal guide rod 409 is slidably arranged in the horizontal guide sleeve 408, and the end of the horizontal guide rod 409 is connected to the inner wall of the spray shell 100 through a connecting rod, and the side of the adjusting ring frame 401 close to the pressing ball 404 is a conical pressing surface, and the adjusting ring frame 401 is connected to a pushing unit for driving it to move along the axis of the machining center tube 300, and the adjusting ring frame 401 is driven by the pushing unit to move toward the pressing ball 404, and the conical surface squeezes the pressing ball 404, so that the grinding column overcomes the elastic force of the fine-tuning spring 405 and slides down, and at this time, the diameter of the grinding ring group formed by the multiple grinding heads 403 will be reduced, and vice versa, it will be increased, so that the grinding diameter of the product can be fine-tuned; The pushing unit includes an adjusting slot 102 provided on the top of the spraying housing 100, an adjusting slide 104 is provided in a sliding position of the adjusting slot 102, an adjusting connecting rod 400 connected to an adjusting ring frame 401 is provided at the lower end of the adjusting slide 104, an adjusting screw 103 is provided on the adjusting ring frame 401, one end of the adjusting screw 103 is rotatably connected to a bearing block on the spraying housing 100, and the other end of the adjusting screw 103 is connected to an output end of an adjusting motor 101 on the spraying housing 100, and under the drive of the adjusting motor 101, the adjusting screw 103 and the adjusting slide 104 rotate relative to each other, and under the action of the thread, the adjusting slide 104 can slide along the adjusting slot 102, and the adjusting slide 104 will drive the adjusting ring frame 401 to move through the adjusting connecting rod 400, thereby providing power for adjusting the grinding diameter; The support roller group includes a floating hanger 207 slidably arranged on the spray shell 100, the lower end of the floating hanger 207 is connected to the support side plate 208, and a plurality of support rollers 209 are rotatably arranged on the outer side of the support side plate 208. The support roller 209 is a structure with large ends and a small center, which is helpful for centering the pipe fittings. The upper ends of the two floating hangers 207 are connected by a floating connecting frame 203, and a plurality of floating guide rods 202 are slidably arranged on the floating connecting frame 203. The outer side of the floating guide rod 202 is provided with a floating spring 201 that connects the floating connecting frame 203 and the top of the spray shell 100. A transmission seat 205 is provided at the center of the floating connecting frame 203. A transmission bevel 206 is provided on 205, and a transmission pin 204 matching the transmission bevel 206 is provided on the side of the adjusting slide 104. The transmission pin 204 and the adjusting slide 104 are rotatably connected, so that when the adjusting slide 104 drives the adjusting ring frame 401 to move and adjust the grinding diameter, the transmission pin 204 will also slide along the transmission bevel 206. Since the transmission bevel 206 is inclined, the transmission bevel 206 matches the inclined surface of the adjusting ring frame 401, which is the basis of linkage. The transmission pin 204 will lift the transmission seat 205 upward through the transmission bevel 206, so that the height of the support roller 209 can be increased to match the pipe with a smaller diameter; The support height adjustment and grinding diameter adjustment are linked. The support height adjustment can be completed simultaneously with the grinding diameter adjustment, killing two birds with one stone to ensure processing efficiency. In order to further limit the position of the pipe fitting, a sliding side plate 211 is also slidably provided on the floating hanger 207, and a lower sliding hole 212 matching the floating hanger 207 is provided on the lower sliding side plate 211. The lower sliding side plate 211 and the supporting side plate 208 are connected by a plurality of downward pressing springs 213. A plurality of downward pressing rollers 210 are rotatably provided on the outer side of the lower sliding side plate 211. The downward pressing rollers 210 are used to press the pipe fitting downward, so that the position of the pipe fitting can be further restrained. The lower pressure roller 210 and the support roller 209 are both provided with elastic layers on the outside, so that the contact area can be increased; In order to ensure the grinding effect, a buffer air cavity 414 is provided inside the grinding head 403, and a plurality of air inlet notches are provided on the outside of the buffer air cavity 414. A guide blade 413 is provided at the position of each air inlet notch, and the guide blade 413 is used to guide the airflow into the buffer air cavity 414. An avoidance ring groove 415 is provided on the outside of the lower end of the grinding head 403, and a plurality of blowing holes 416 connected with the buffer air cavity 414 are distributed at the position of the avoidance ring groove 415. The axis of the blowing hole 416 faces the axis position of the grinding head 403. In this way, when the grinding head 403 rotates at a high speed, the guide blade 413 will guide the airflow into the buffer air cavity 414, and the airflow will blow toward the product in the grinding process along the blowing hole 416, so as to blow away the grinding powder, which is helpful for the later spraying operation. In addition, the blowing structure here can also cool down the grinding position, so as to further protect the product. The rotation limiting member includes a rotation limiting protrusion 411 arranged on the outside of the grinding column, and the inner wall of the rotating sleeve 407 is provided with a limiting groove that slidably matches with the rotation limiting protrusion 411. The limiting groove and the rotation limiting protrusion 411 cooperate to realize relative sliding between the grinding column and the rotating sleeve 407, but cannot rotate relative to each other; The rotating drive component includes a driving gear 302 arranged on the outside of the machining center cylinder 300, and the driving gear 302 is meshed with a driving gear 304. The driving gear 304 is arranged at the output end of the driving motor 303. A motor frame 305 is arranged inside the spray housing 100, and the driving gear 304 is installed on the motor frame 305. Under the drive of the driving motor 303, the driving gear 304 matches the driving gear 302 to drive the machining center cylinder 300 to rotate, providing basic power for grinding.

[0032] Working principle: In actual use, the pipe fittings are pulled at the end of the machining center cylinder 300 by a traction device (the traction device is not drawn here), and the pipe fittings are sent into the machining center cylinder 300 along the support roller group, and the machining center cylinder 300 is driven to rotate rapidly by a rotating drive member. When the machining center cylinder 300 rotates, the friction between the fixed outer ring 301 and the friction wheel 406 will drive the rotating sleeve 407 to rotate rapidly, and the rotating sleeve 407 drives the grinding head 403 to rotate, thereby grinding the surface of the pipe fittings. The polished pipe fittings will be dust-removed by the dust suction component, and then under the action of the feed pump 702, the paint inside the paint box 703 will be sent into the buffer liquid ring box 700, and then the paint will enter the atomizing nozzle 701 along the liquid inlet pipe 704, and then evenly sprayed on the surface of the pipe fittings to complete the spraying operation, and finally the sprayed surface is cured by the curing component; The grinding diameter can be adjusted between grinding. The pushing unit drives the adjusting ring frame 401 to move toward the pressing ball 404, and the conical surface is pressed against the pressing ball 404, so that the grinding column overcomes the elastic force of the fine-tuning spring 405 and slides down. At this time, the diameter of the grinding ring group composed of multiple grinding heads 403 will be reduced. When the adjusting slide 104 drives the adjusting ring frame 401 to move to adjust the grinding diameter, the transmission pin 204 will also slide along the transmission bevel 206. Since the transmission bevel 206 is inclined, the transmission pin 204 will lift the transmission seat 205 upward through the transmission bevel 206, so that the height of the support roller 209 can be increased to match the pipe with a smaller diameter.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-directional spraying device for the surface of a plastic product, comprising a spraying shell (100), wherein the spraying shell (100) is a box structure with openings at both ends, and a machining center cylinder (300) is provided at the center of the spraying shell (100), characterized in that: A fixed outer ring (301) is rotatably provided on the outer side of the machining center cylinder (300), and the outer side of the fixed outer ring (301) is connected to the inner wall of the spray shell (100) through a positioning rod. The machining center cylinder (300) is connected to a rotating drive member for driving it to rotate. A polishing assembly for pre-treating the surface of the pipe is provided on the machining center cylinder (300). Support roller groups for supporting the pipe are provided at the ports on both sides of the spray shell (100). A dust suction assembly for sucking away polishing dust is provided downstream of the polishing assembly. A spray assembly for spraying the pipe is provided downstream of the dust suction assembly. A curing assembly for quickly curing the spray layer is provided downstream of the spray assembly.

2. The multi-directional spraying equipment for plastic product surface according to claim 1 is characterized in that: The dust suction component comprises a negative pressure ring box (601) rotatably arranged on the outside of the machining center cylinder (300); a plurality of negative pressure dust suction holes (600) are arranged on the surface of the machining center cylinder (300) where the negative pressure ring box (601) is located; the negative pressure ring box (601) is connected to the inner wall of the spray shell (100) via a dust suction positioning rod; the air suction port of the negative pressure ring box (601) is connected to the air suction pump (602) via a conduit; the exhaust end of the air suction pump (602) is connected to the purification box (604) via an exhaust conduit (603); an activated carbon filter group is arranged inside the purification box (604).

3. The multi-directional spraying equipment for plastic product surface according to claim 1 is characterized in that: The spraying assembly comprises a buffer liquid ring box (700) rotatably arranged on the outside of the machining center cylinder (300); the buffer liquid ring box (700) is connected and fixed to the inner wall of the spraying shell (100) via a paint positioning rod; a sealing ring is provided between the buffer liquid ring box (700) and the machining center cylinder (300); a nozzle fixing ring (705) is provided inside the machining center cylinder (300) where the buffer liquid ring box (700) is located; the nozzle fixing ring (705) A plurality of atomizing nozzles (701) are provided on the spraying machine, and the feed of the atomizing nozzles (701) passes through the machining center tube (300) and extends to the inside of the buffer liquid ring box (700). The feed end of the buffer liquid ring box (700) is connected to the discharge end of the feed pump (702), and the suction end of the feed pump (702) extends to the inside of the paint box (703). The paint box (703) and the feed pump (702) are both fixedly arranged on the outside of the spraying shell (100).

4. The multi-directional spraying equipment for the surface of plastic products according to claim 1 is characterized in that: The polishing assembly comprises a plurality of rotating sleeves (407) distributed in an array on the machining center cylinder (300), the rotating sleeve (407) and the machining center cylinder (300) being rotatably connected, a grinding column being slidably disposed on the rotating sleeve (407), a rotation limiter being disposed between the grinding column and the rotating sleeve (407), a friction wheel (406) being fixedly disposed on the outer side of the rotating sleeve (407), a transmission tooth surface (402) being in frictional contact with the friction wheel (406) being disposed on the side surface of the fixed outer ring (301), and the lower end of the grinding column passing through the rotating sleeve (407) ) extends to the interior of the machining center cylinder (300), the inner end of the grinding column is provided with a grinding head (403), the upper end of the grinding column is provided with a rotating end cover (410), the rotating end cover (410) and the end of the rotating sleeve (407) are connected by a fine-tuning spring (405), the upper end of the rotating end cover (410) is rotatably provided with a connecting column (412), the upper end of the connecting column (412) is provided with a pressing ball (404), a plurality of grinding heads (403) are distributed in an array to form a grinding ring group, and an adjusting member for adjusting the diameter of the grinding ring group is provided in the spray housing (100).

5. The multi-directional spraying equipment for the surface of plastic products according to claim 4 is characterized in that: The adjusting member comprises an adjusting ring frame (401) sleeved on the outside of the machining center tube (300), at least two pairs of horizontal guide sleeves (408) are provided at the end of the adjusting ring frame (401), a horizontal guide rod (409) is slidably provided in the horizontal guide sleeve (408), the end of the horizontal guide rod (409) is connected to the inner wall of the spray shell (100) through a connecting rod, the side of the adjusting ring frame (401) close to the pressing ball (404) is a conical pressing surface, and the adjusting ring frame (401) is connected to a pushing unit for driving it to move along the axis of the machining center tube (300).

6. The multi-directional spraying equipment for the surface of plastic products according to claim 5 is characterized in that: The pushing unit comprises an adjusting slide groove (102) provided on the top of the spray housing (100); an adjusting slide seat (104) is slidably arranged in the adjusting slide groove (102); an adjusting connecting rod (400) connected to an adjusting ring frame (401) is arranged at the lower end of the adjusting slide seat (104); an adjusting screw rod (103) is threadedly arranged on the adjusting ring frame (401); one end of the adjusting screw rod (103) is rotatably connected to a bearing block on the spray housing (100); and the other end of the adjusting screw rod (103) is connected to an output end of an adjusting motor (101) on the spray housing (100).

7. The multi-directional spraying equipment for the surface of plastic products according to claim 6 is characterized in that: The support roller group comprises a floating suspension rod (207) slidably arranged on the spray shell (100), the lower end of the floating suspension rod (207) is connected to the support side plate (208), and a plurality of support rollers (209) are rotatably arranged on the outer side of the support side plate (208), and the support rollers (209) are of a structure with large ends and a small center, which is helpful for centering the pipe fittings, and the upper ends of the two floating suspension rods (207) are connected by a floating connecting frame (203), and a plurality of floating guide rods (202) are slidably arranged on the floating connecting frame (203). The outer side of the floating guide rod (202) is provided with a floating spring (201) that connects the floating connecting frame (203) and the top of the spray shell (100); a transmission seat (205) is provided at the center of the floating connecting frame (203); a transmission bevel groove (206) is provided on the transmission seat (205); a transmission pin shaft (204) that matches the transmission bevel groove (206) is provided on the side of the adjustment slide (104); and the transmission pin shaft (204) and the adjustment slide (104) are rotationally connected.

8. The multi-directional spraying equipment for the surface of plastic products according to claim 7 is characterized in that: A lowering side plate (211) is also slidably provided on the floating suspension rod (207), and a lowering sliding hole (212) matching the floating suspension rod (207) is provided on the lowering side plate (211). The lowering side plate (211) and the supporting side plate (208) are connected via a plurality of downward pressure springs (213), and a plurality of downward pressure rollers (210) are rotatably provided on the outer side of the lowering side plate (211).

9. The multi-directional spraying equipment for the surface of plastic products according to claim 4, characterized in that: A buffer air cavity (414) is provided inside the grinding head (403), a plurality of air inlet notches are provided outside the buffer air cavity (414), a guide blade (413) is provided at each air inlet notch, and the guide blade (413) is used to guide airflow into the buffer air cavity (414), an avoidance ring groove (415) is provided outside the lower end of the grinding head (403), a plurality of air blowing holes (416) connected to the buffer air cavity (414) are distributed at the position of the avoidance ring groove (415), and the axis of the air blowing hole (416) faces the axis position of the grinding head (403).

10. The multi-directional spraying equipment for plastic product surface according to claim 4, characterized in that: The rotation limiting member comprises a rotation limiting protrusion (411) arranged on the outside of the grinding column, and the inner wall of the rotating sleeve (407) is provided with a limiting groove that slidably matches the rotation limiting protrusion (411).

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