A rainproof plastic spraying production line

Abstract

The present invention relates to the field of spraying technology, and specifically relates to a rainproof plastic spraying production line, which includes an open pipe. The open pipe is divided into four areas: a material changing area, a cleaning room, a spraying room, and a drying room. The inner side of the top wall of the open pipe is fixedly installed with an inner C-ring and an outer C-ring through a plurality of connecting frames. The inner C-ring is located inside the outer C-ring. One end of the inner C-ring near the bottom is provided with a tooth groove. A slidable cross belt is arranged between the inner C-ring and the outer C-ring. A plurality of rotatable hanging frames are arranged at the bottom of the cross belt; The present invention adopts the design of a vibration mechanism and an inclined plate. When the cross belt drives the plastic shell to rotate and move into the spraying room through the suspension rod, the plastic vibrates multiple times in the spraying area. When the plastic shell leaves the spraying area for the last vibration, the excess paint on the surface of the plastic shell can be shaken off, preventing excessive rainproof agent from concentrating and adhering to the plastic surface to form protrusions.

Description

Technical Field

[0001] The invention relates to the technical field of spraying, in particular to a rainproof plastic spraying production line. Background Art

[0002] The rainproof plastic spraying production line is an automated production line specially used for waterproof spraying treatment on plastic surfaces. Its main function is to spray the rainproof agent evenly on the surface of plastic products through a precise spraying process, thereby forming a protective film with waterproof function on its surface. This protective film can significantly improve the weather resistance, UV resistance and service life of plastic products. Especially when used outdoors or in humid environments, it can effectively prevent water penetration, prevent the product from being damaged by water, and extend its service life. Through this process, the produced plastic parts can better resist rain, moisture, pollutants and wear and tear in daily use.

[0003] A Chinese patent with announcement number CN110694840B discloses a spraying production line, including a spraying room, two groups of spraying devices and a driving mechanism. Both groups of spraying devices include a number of sliding columns. The workpiece will abut against all matching parts and push all sliding columns to slide away from the workpiece. The elastic part will cause the matching parts to press against the workpiece, and then the plug-in assembly will plug and fix all the sliding columns, so that a certain distance is always maintained between the spray gun and the workpiece, ensuring uniform spraying of the workpiece by the spray gun.

[0004] A Chinese patent with announcement number CN115445843B discloses a spray chamber, including an outer wall of the spray chamber, on which an air inlet device for diffusing airflow is provided. The airflow outside the spray chamber is pulled by the air inlet device and pressed down to the spraying station through a first filter, so that the paint mist sprayed by the spray device is evenly sprayed on the workpiece under wind pressure, thereby preventing the paint mist from rebounding when the spray device sprays on the workpiece.

[0005] The above-mentioned and similar prior arts can, to a certain extent, solve the problem of achieving the spraying effect of the rainproof agent for plastics. Existing spraying equipment usually completes the waterproof treatment by spraying on both sides of the plastic. Although this method can achieve a certain spraying effect in some cases, it is prone to unevenness during the spraying process. Especially in the complex parts and corners of plastic parts, due to the difficult spraying in these positions, the spraying agent is difficult to completely cover, and there may be missed spraying, which affects the final waterproof effect, resulting in the unevenness of the waterproof film, and further reducing the overall weather resistance and service life of plastic products. In addition, the paint that falls to the ground during spraying not only increases the production cost but also has a negative impact on the environment. The solvents and other chemical substances volatilized during the spraying process may form harmful gases. These gases not only pose a potential hazard to the health of operators but also may pollute the working environment, affecting the air quality and production safety of the workshop. Therefore, improving the spraying equipment and optimizing the spraying method to achieve a more uniform and efficient spraying effect and effectively reduce paint waste and harmful gas emissions are urgent problems to be solved in the current rainproof plastic spraying production line.

[0006] Therefore, the present invention provides a rainproof plastic spraying production line that can comprehensively spray plastics and recycle the unsprayed paint. Summary of the Invention

[0007] A rainproof plastic spraying production line designed to address the problems in the prior art, such as the inability to perform comprehensive spraying and the easy waste of unsprayed paint.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a rainproof plastic spraying production line, including an open pipe. The open pipe is divided into four areas: a material-changing area, a cleaning chamber, a spraying chamber, and a drying chamber. The inner side of the top wall of the open pipe is fixedly installed with an inner C-ring and an outer C-ring through a plurality of connecting frames. The inner C-ring is located inside the outer C-ring. The bottoms of both the inner C-ring and the outer C-ring are provided with inclined plates, and the inclined plates are located inside the spraying chamber. One end of the inner C-ring near the bottom is provided with a tooth groove. A slidable cross belt is arranged between the inner C-ring and the outer C-ring. A plurality of rotatable hanging frames are arranged at the bottom of the cross belt. A vibration mechanism is arranged inside the hanging frame. The vibration mechanism includes two abutting rods. A meshing tooth is fixedly installed on the outer side of the hanging frame, and the meshing tooth meshes with the tooth groove. A driving mechanism is arranged inside the inner C-ring and the outer C-ring. The driving mechanism includes two sets of pressing rollers; a vibration mechanism, which is assembled to switch the abutting and non-abutting states of the abutting rod and the inclined plate through the rotation and movement of the hanging frame, thereby completing the vibration operation; a driving mechanism, which is assembled to rotate the two sets of pressing rollers and drive the cross belt to move by using the friction with the cross belt.

[0009] Furthermore, a plurality of bearing seats are fixedly installed at the bottom of the cross belt, one end of the hanger is rotatably connected to the bearing seat via a bearing, a column groove is opened inside the hanger, movable holes are respectively opened on both sides of the hanger, and the movable holes are communicated with the column groove.

[0010] Furthermore, a small C ring is fixedly installed at one end of the outer C ring close to the bottom, and both ends of the small C ring are in sliding contact with the bearing seat and one side of the hanger respectively, and the inclined plate is fixedly installed at the bottom of the small C ring.

[0011] Furthermore, the vibration mechanism also includes a vibration spring, one end of which is fixedly installed on the inner side of the bottom wall of the column groove, and the other end of the vibration spring is fixedly installed on a top plate, two resistance rods are respectively fixedly installed on both sides of the top plate, and the resistance rods are located on the inner side of the movable hole, one end of a connecting rod is fixedly installed on the bottom of the top plate, and the other end of the connecting rod passes through the bottom of the column groove and is fixedly installed with a clamp.

[0012] Furthermore, the driving mechanism also includes a plurality of driving shafts, which respectively pass through the top of the outer C ring through bearings, and the top of the driving shaft passes through the top of the open tube through bearings. A plurality of synchronous motors are fixedly installed on the top of the open tube, and the output end of the synchronous motor is fixedly connected to the top of the driving shaft, and a plurality of driven shafts are installed on the top of the inner C ring through bearings, and the top of the driven shaft is rotatably installed on the inner side of the top wall of the open tube through bearings. Each group of extrusion rollers has two, and a group of extrusion rollers is fixedly installed on the outside of the driving shaft and the driven shaft respectively, and the two extrusion rollers on the outside of the driving shaft are respectively located on the inside and top of the outer C ring, and the two extrusion rollers on the outside of the driven shaft are respectively located on the inside and top of the inner C ring, and the two groups of extrusion rollers are respectively in extrusion contact with the two sides of the cross belt, and large gears are fixedly installed on the outside of the driving shaft and the driven shaft respectively, and the large gears are located on the top of the extrusion rollers, and the two large gears are meshed.

[0013] Furthermore, a collecting trough is provided on the inner side of the bottom wall of the spray chamber, a filter screen is provided on the inner side of the collecting trough, two groups of bearing rings are fixedly installed on the inner wall of the spray chamber, each group has two bearing rings, a rotating ring is rotatably installed on the inner side of the bearing ring, a plurality of scrapers are fixedly installed between the two rotating rings of each group, the scrapers are in contact with the inner wall of the spray chamber, a bevel gear 1 is fixedly installed on the side where the two rotating rings near the middle are close to each other, a driving motor is fixedly installed on the top of the spray chamber, the output end of the driving motor passes through the top of the spray chamber, a bevel gear 2 is fixedly installed on the outer side of the output end of the driving motor located inside the spray chamber, and the bevel gear 2 is respectively meshed with the two bevel gears 1.

[0014] Further, a spraying machine is fixedly installed on one side of the spraying chamber. A conveying pipe is fixedly installed on one side of the spraying machine. The conveying pipe penetrates through the interior of the spraying chamber and is located at the position between two bevel gears I. A plurality of atomizing nozzles are installed through the interior of the conveying pipe. A reflux pump is fixedly installed on the side of the spraying machine close to the spraying chamber. One end of a reflux pipe is fixedly installed at the input end of the reflux pump. The other end of the reflux pipe penetrates through the interior of the opening pipe and communicates with the collecting tank.

[0015] Further, a cleaning brush is fixedly installed on the inner wall of the cleaning chamber close to the inner diameter through a plurality of support rods, and an air purifier is fixedly installed on the inner wall of the cleaning chamber close to the outer diameter.

[0016] Further, a dryer is fixedly installed on the inner wall of the drying chamber close to the inner diameter, and another air purifier is fixedly installed on the inner wall of the drying chamber close to the outer diameter.

[0017] Advantages of the present invention:

[0018] (1) For the rainproof plastic spraying production line of the present invention, the designs of the vibration mechanism and the inclined plate are adopted. When the cross belt drives the plastic shell to rotate and move into the spraying chamber through the suspension rod, the rotating hanger drives the contact rod to contact the inclined surface of the inclined plate. When the two contact rods rotate to be parallel to the gap between the two hypotenuses, the contact rod is in a non-contact state. The vibration spring drives the clamp and the plastic shell to vibrate up and down, making the spraying effect more uniform. The plastic shell vibrates multiple times within the spraying area. When the plastic shell leaves the spraying area for the last vibration, the excess paint on the surface of the plastic shell can be vibrated off for recycling, preventing excessive rainproof agent from concentrating and adhering on the surface of the plastic shell to form protrusions, which is beneficial to the uniform coating of the rainproof agent.

[0019] (2) For the rainproof plastic spraying production line of the present invention, the designs of the rotating ring and the scraper are adopted. When the rainproof agent that is not sprayed on the surface of the plastic shell falls on the inner wall of the spraying chamber, the scraper guides the rainproof agent on the inner wall of the spraying chamber into the inner side of the collecting tank and returns it to the inner side of the spraying machine under the action of the reflux pump, so that the unsprayed rainproof agent can be recycled and combined, reducing the waste of the rainproof agent.

[0020] (3) For the rainproof plastic spraying production line of the present invention, the designs of the cleaning chamber and the drying chamber are adopted, which can clean the surface of the unsprayed plastic shell and dry the sprayed plastic shell. And before the irritating gas inside the opening pipe escapes to the outside, the irritating gas is absorbed under the action of the air purifier, reducing environmental pollution. Description of the Drawings

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 Schematic three-dimensional structure diagram of the open tube of the present invention;

[0023] Figure 2 Schematic diagram of the regional distribution of the open tube of the present invention;

[0024] Figure 3 Schematic three-dimensional sectional structure diagram of the front of the open tube of the present invention;

[0025] Figure 4 Schematic three-dimensional sectional structure diagram of the side of the open tube of the present invention;

[0026] Figure 5 Schematic three-dimensional structure diagram of the drive mechanism of the present invention;

[0027] Figure 6 Schematic three-dimensional structure diagram of the inner C-ring of the present invention;

[0028] Figure 7 Schematic three-dimensional structure diagram of the outer C-ring of the present invention;

[0029] Figure 8 Schematic three-dimensional structure diagram of the cross belt of the present invention;

[0030] Figure 9 For the present invention Figure 4 Schematic diagram of the partial enlarged structure at location A;

[0031] Figure 10 Schematic three-dimensional structure diagram of the vibration mechanism of the present invention;

[0032] Figure 11 Schematic three-dimensional structure diagram of the scraper of the present invention;

[0033] Figure 12 Schematic three-dimensional structure diagram of the spraying machine of the present invention;

[0034] Figure 13 Schematic three-dimensional structure diagram of the inner side structure of the cleaning chamber and the drying chamber of the present invention;

[0035] Figure 14 Schematic diagram of another driving mode structure of the scraper of the present invention.

[0036] In the figure: 1. Open pipe; 1001. Refueling area; 1002. Cleaning room; 1003. Spraying room; 1004. Drying room; 2. Connecting frame; 3. Inner C-ring; 4. Outer C-ring; 5. Small C-ring; 6. Cross belt; 7. Bearing seat; 8. Hanging bracket; 81. Column groove; 82. Movable hole; 9. Meshing teeth; 10. Vibration mechanism; 101. Vibration spring; 102. Top plate; 103. Contact rod; 104. Connecting rod; 11. Fixture; 12. Driving mechanism; 121. Driving shaft; 122. Synchronous motor; 123. Driven shaft; 124. Extrusion roller; 125. Large gear; 13. Inclined plate; 14. Collection tank; 15. Filter screen; 16. Bearing ring; 17. Rotating ring; 18. Scraper; 19. First bevel gear; 20. Second bevel gear; 21. Driving motor; 22. Spraying machine; 23. Delivery pipe; 24. Atomizing nozzle; 25. Return pump; 26. Return pipe; 27. Cleaning brush; 28. Dryer; 29. Air purifier. Detailed implementation mode

[0037] In order to make the technical means, technical features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0038] Example 1: As Figures 1 - 14 shown, a rainproof plastic spraying production line according to the present invention includes an open pipe 1, which is divided into four areas: a refueling area 1001, a cleaning room 1002, a spraying room 1003 and a drying room 1004. Inside the top wall of the open pipe 1, an inner C-ring 3 and an outer C-ring 4 are fixedly installed through a plurality of connecting frames 2. The inner C-ring 3 is located inside the outer C-ring 4. A tooth groove is opened at one end of the inner C-ring 3 close to the bottom. A slidable cross belt 6 is arranged between the inner C-ring 3 and the outer C-ring 4. A plurality of rotatable hanging brackets 8 are arranged at the bottom of the cross belt 6. Meshing teeth 9 are fixedly installed on the outer side of the hanging brackets 8, and the meshing teeth 9 are meshed with the tooth groove. A plurality of bearing seats 7 are fixedly installed at the bottom of the cross belt 6. One end of the hanging bracket 8 is rotatably connected to the bearing seat 7 through a bearing. A small C-ring 5 is fixedly installed at one end of the outer C-ring 4 close to the bottom, and both ends of the small C-ring 5 are in sliding contact with one side of the bearing seat 7 and the hanging bracket 8 respectively. An inclined plate 13 is fixedly installed at the bottom of the small C-ring 5.

[0039] Specifically, the connecting frame 2 can provide stable support for the inner C-ring 3 and the outer C-ring 4. The inner C-ring 3 and the outer C-ring 4 can provide sliding support for the cross belt 6. The tooth grooves of the inner C-ring 3 can provide meshing action for the meshing teeth 9. The cross belt 6 can provide stable support for the bearing seat 7. The bearing seat 7 can provide rotational connection for the hanging frame 8. The outer C-ring 4 can provide stable support for the small C-ring 5. The small C-ring 5 can squeeze the bearing seat 7 and the hanging frame 8 to ensure that the meshing teeth 9 can fully mesh with the tooth grooves. During the movement of the cross belt 6 between the inner C-ring 3 and the outer C-ring 4, the cross belt 6 drives the hanging frame 8 to move through the bearing seat 7. Due to the meshing action between the meshing teeth 9 on the outer side of the hanging frame 8 and the tooth grooves, the hanging frame 8 rotates during the movement.

[0040] In this embodiment, a driving mechanism 12 is provided inside the inner C-ring 3 and the outer C-ring 4. The driving mechanism 12 includes two groups of pressing rollers 124. The driving mechanism 12 is assembled to rotate through the two groups of pressing rollers 124 and drive the cross belt 6 to move by friction with the cross belt 6. The driving mechanism 12 further includes a plurality of driving shafts 121. The plurality of driving shafts 121 respectively pass through the top of the outer C-ring 4 through bearings. The top ends of the driving shafts 121 pass through the top of the opening tube 1 through bearings. A plurality of synchronous motors 122 are fixedly installed at the top of the opening tube 1, and the output ends of the synchronous motors 122 are fixedly connected to the top ends of the driving shafts 121. The top of the inner C-ring 3 is installed through bearings with a plurality of driven shafts 123. The top ends of the driven shafts 123 are rotatably installed on the inner side of the top wall of the opening tube 1 through bearings. Each group of pressing rollers 124 has two. One group of pressing rollers 124 is respectively fixedly installed on the outer sides of the driving shafts 121 and the driven shafts 123. The two pressing rollers 124 on the outer side of the driving shaft 121 are respectively located inside and at the top of the outer C-ring 4. The two pressing rollers 124 on the outer side of the driven shaft 123 are respectively located inside and at the top of the inner C-ring 3. The two groups of pressing rollers 124 are respectively in pressing contact with both sides of the cross belt 6. Large gears 125 are respectively fixedly installed on the outer sides of the driving shafts 121 and the driven shafts 123, and the large gears 125 are located at the top of the pressing rollers 124. The two large gears 125 are meshed.

[0041] Specifically, a plurality of synchronous motors 122 can drive a plurality of driving shafts 121 to rotate synchronously at the same time. The driving shafts 121 and the driven shafts 123 can provide stable support for the large gears 125. The meshing of the two large gears 125 can ensure that the driving shafts 121 and the driven shafts 123 can rotate synchronously in opposite directions, so that the pressing rollers 124 on both sides of the cross belt 6 can rotate synchronously in opposite directions. The inner C-ring 3 and the outer C-ring 4 can respectively provide rotational support for the driven shafts 123 and the driving shafts 121. The inner C-ring 3 and the outer C-ring 4 can provide a rotational space for the pressing rollers 124 near the bottom, so that the upper and lower pressing rollers 124 can respectively perform friction transmission on the top and bottom of the cross belt 6.

[0042] In this embodiment, a spraying machine 22 is fixedly installed on one side of the spraying chamber 1003. A conveying pipe 23 is fixedly installed on one side of the spraying machine 22. The conveying pipe 23 penetrates through the interior of the spraying chamber 1003 and is located at a position between two bevel gears 19. A plurality of atomizing nozzles 24 are installed through the interior of the conveying pipe 23. A reflux pump 25 is fixedly installed on the side of the spraying machine 22 close to the spraying chamber 1003. One end of a reflux pipe 26 is fixedly installed at the input end of the reflux pump 25. The other end of the reflux pipe 26 penetrates through the interior of the opening pipe 1 and communicates with the collection tank 14.

[0043] Specifically, the spraying chamber 1003 can provide a space for opening the collection tank 14. The collection tank 14 can provide a collection space for the paint. The inner side of the bottom wall of the collection tank 14 is in an inclined shape, so that the collected paint can converge at the middle position of the collection tank 14. The collection tank 14 can provide a placement space for the filter screen 15. The filter screen 15 can filter out solid impurities in the paint. The reflux pump 25 can work according to the amount of paint inside the collection tank 14, so that the paint in the collection tank 14 can be regularly conveyed back to the spraying machine 22 through the reflux pipe 26. The heating chamber can provide heat for the inner wall of the spraying chamber 1003 through the heating rod, so that the paint on the inner wall of the spraying chamber 1003 will not solidify due to low temperature, so that the paint on the inner wall of the spraying chamber 1003 can be recovered in a liquid state.

[0044] In this embodiment, a column groove 81 is opened inside the hanger 8. Activity holes 82 are respectively penetrated through both sides of the hanger 8, and the activity holes 82 communicate with the column groove 81. Oblique plates 13 are provided at the bottoms of both the inner C-ring 3 and the outer C-ring 4, and the oblique plates 13 are located inside the spraying chamber 1003. A vibration mechanism 10 is arranged inside the hanger 8. The vibration mechanism 10 is assembled to switch the contact rod 103 between a state of contacting and non-contacting with the inclined plate 13 through the rotational movement of the hanger 8, so as to complete the vibration operation; the vibration mechanism 10 includes two contact rods 103. The vibration mechanism 10 further includes a vibration spring 101. One end of the vibration spring 101 is fixedly installed on the inner side of the bottom wall of the column groove 81. The other end of the vibration spring 101 is fixedly installed with a top plate 102. The two contact rods 103 are respectively fixedly installed on both sides of the top plate 102, and the contact rods 103 are located inside the activity holes 82. One end of a connecting rod 104 is fixedly installed at the bottom of the top plate 102. The other end of the connecting rod 104 penetrates through the bottom of the column groove 81 and is fixedly installed with a clamp 11.

[0045] Specifically, after the atomizing nozzle 24 sprays the coating, a spraying area will be formed. The right end of the inclined plate 13 coincides with the spraying area, and the leftmost end of the inclined plate 13 extends beyond the spraying area. When the plastic shell leaves the spraying area, it will undergo the last vibration, which can shake off the excess coating on the surface of the plastic shell, preventing excessive rainproof agent from concentrating and forming protrusions on the surface of the plastic shell. When the plastic shell rotates and moves into the spraying chamber 1003 along with the cross belt 6, the rotating plastic shell can fully contact the atomized rainproof agent, thus achieving full spraying. At the same time, the rotating hanger 8 drives the contact rod 103 to contact the inclined surface of the inclined plate 13. The hanger 8 continues to rotate and move, causing the contact rod 103 to drive the top plate 102 to move downward under the contact action of the inclined plate 13. The vibration spring 101 is compressed and deformed under the extrusion of the top plate 102. When the two contact rods 103 rotate to be parallel to the gap between the two inclined sides, the contact rod 103 is in a non-contact state, causing the contact rod 103 to lose extrusion. The vibration spring 101 drives the top plate 102 to vibrate up and down, causing the top plate 102 to drive the clamp 11 and the plastic shell to vibrate up and down through the connecting rod 104, making the spraying effect more uniform.

[0046] In this embodiment, a collection groove 14 is formed on the inner side of the bottom wall of the spraying chamber 1003. A filter screen 15 is arranged inside the collection groove 14. Two groups of bearing rings 16 are fixedly installed on the inner wall of the spraying chamber 1003. Each group of bearing rings 16 has two. A rotating ring 17 is rotatably installed inside the bearing ring 16. A plurality of scraping plates 18 are fixedly installed between the two rotating rings 17 in each group. The scraping plates 18 are in contact with the inner wall of the spraying chamber 1003. A first bevel gear 19 is fixedly installed on the side of the two rotating rings 17 close to the middle, which are close to each other. A driving motor 21 is fixedly installed on the top of the spraying chamber 1003. The output end of the driving motor 21 penetrates the top of the spraying chamber 1003. A second bevel gear 20 is fixedly installed outside the output end of the driving motor 21 inside the spraying chamber 1003, and the second bevel gear 20 meshes with the two first bevel gears 19 respectively.

[0047] Specifically, a heating device is arranged inside the spraying chamber 1003, which can heat the inner wall of the spraying chamber 1003 to prevent the coating from solidifying. The bearing ring 16 can provide rotational support for the rotating ring 17, the rotating ring 17 can provide rotational support for the scraping plate 18, and the two rotating rings 17 close to the middle can provide stable support for the first bevel gear 19. By driving the second bevel gear 20 to rotate through the driving motor 21, the left and right rotating rings 17 are driven to rotate by the meshing action of the second bevel gear 20 and the first bevel gear 19. The rotating ring 17 drives the scraping plate 18 to rotate simultaneously, causing the scraping plate 18 to scrape off the rainproof agent on the inner wall of the spraying chamber 1003. The rainproof agent enters the inside of the collection groove 14 under the action of the scraping plate 18.

[0048] In this embodiment, a cleaning brush 27 is fixedly installed on the inner wall of the cleaning chamber 1002 near the inner diameter through a plurality of support rods, an air purifier 29 is fixedly installed on the inner wall of the cleaning chamber 1002 near the outer diameter, a dryer 28 is fixedly installed on the inner wall of the drying chamber 1004 near the inner diameter, and another air purifier 29 is fixedly installed on the inner wall of the drying chamber 1004 near the outer diameter.

[0049] Specifically, the bristles on the surface of the cleaning brush 27 have a relatively long length, so as to fully provide a cleaning effect for the plastic shell. The cleaning chamber 1002 and the drying chamber 1004 can provide a stable support for the air purifier 29. At the same time, the cleaning chamber 1002 and the drying chamber 1004 provide a sufficiently long flow channel for the irritating gas in the opening tube 1, so that the air purifier 29 can fully absorb and purify the irritating gas. The dryer can blow out hot air, and the hot air flows on the surface of the plastic shell for drying and blows towards the air purifier 29 to improve the purification effect.

[0050] Embodiment Two:

[0051] As Figure 14 shown, another tooth groove is provided on the outer side of the cross belt 6 near the top. A long rotating rod is rotatably mounted on the top of the outer C-ring 4 through a bearing. Another meshing tooth 9 is fixedly installed on the outer side of the long rotating rod. The meshing tooth 9 meshes with the tooth groove of the cross belt 6. The bevel gear is rotatably installed on the top of the spraying chamber 1003 through a short rotating rod, and the long rotating rod and the short rotating rod are in meshing transmission through gears. When the cross belt 6 rotates, the long rotating rod is driven to rotate through the meshing action of the tooth groove, and then the short rotating rod is driven to rotate through the meshing transmission action of the gears, so as to drive the bevel gear to rotate and make the scraper 18 rotate to perform the scraping work on the inner wall of the spraying chamber 1003.

[0052] Working principle: The staff starts the synchronous motor 122, so that a plurality of synchronous motors 122 work simultaneously. The synchronous motor 122 drives the driving shaft 121 to rotate. At the same time, under the meshing action of the large gear 125, the driven shaft 123 is driven to rotate in the reverse direction, so that the driving shaft 121 and the driven shaft 123 rotate simultaneously in opposite directions. The driving shaft 121 and the driven shaft 123 drive the extrusion roller 124 to rotate, so that the extrusion roller 124 drives the cross belt 6 to move by means of friction. The cross belt 6 moves along between the inner C-ring 3 and the outer C-ring 4. The cross belt 6 drives the hanger 8 to move through the bearing seat 7. During the movement of the hanger 8, due to the meshing action between the meshing teeth 9 on the outer side of the hanger 8 and the tooth groove, the hanger 8 rotates during the movement;

[0053] The staff is located at the position of the refueling area 1001 for loading and unloading. First, the sprayed plastic shell is removed by the fixture 11 on the hanging bracket 8, and the plastic shell to be sprayed is clamped. Subsequently, the hanging bracket 8 drives the plastic shell to rotate and move. The hanging bracket 8 drives the plastic shell to enter the inner side of the cleaning chamber 1002 first, so that the plastic shell contacts the cleaning brush 27 in the cleaning chamber 1002. The rotation of the plastic shell enables the cleaning brush 27 to fully clean the surface of the plastic shell;

[0054] The plastic shell rotates and moves into the spraying chamber 1003 along with the cross belt 6. The spraying machine 22 is started to spray the rainproof agent through the atomizing nozzle 24. The rotating plastic shell can fully contact the atomized rainproof agent, thus achieving full spraying. At the same time, the rotating hanging bracket 8 drives the contact rod 103 to contact the inclined surface of the inclined plate 13. The hanging bracket 8 continues to rotate and move, so that the contact rod 103 drives the top plate 102 to move downward under the contact action of the inclined plate 13. The vibration spring 101 is compressed and deformed under the extrusion of the top plate 102. When the two contact rods 103 rotate to be parallel to the gap between the two inclined sides, the contact rod 103 is in a non-contact state, so that the contact rod 103 loses extrusion, and the vibration spring 101 drives the top plate 102 to vibrate up and down, so that the top plate 102 drives the fixture 11 and the plastic shell to vibrate up and down through the connecting rod 104, making the spraying effect more uniform. The plastic shell vibrates multiple times when passing through the spraying area. When the plastic shell leaves the spraying area, it will vibrate for the last time, so as to shake off the excess paint on the surface and prevent too much rainproof agent from concentrating and adhering to form protrusions on the surface of the plastic shell;

[0055] The rainproof agent not sprayed on the surface of the plastic shell falls on the inner wall of the spraying chamber 1003. The driving motor 21 is started to drive the bevel gear II 20 to rotate. The meshing action of the bevel gear II 20 and the bevel gear I 19 drives the rotating rings 17 on both sides to rotate. The rotating rings 17 drive the scraping plates 18 to rotate at the same time, so that the scraping plates 18 scrape off the rainproof agent on the inner wall of the spraying chamber 1003. The rainproof agent enters the inner side of the collecting tank 14 under the action of the scraping plate 18 and converges at the middle position under the action of the inclined surface of the collecting tank 14. The reflux pump 25 is started to return the rainproof agent to the inner side of the spraying machine 22 through the reflux pipe 26 by the reflux pump 25, so that the unsprayed rainproof agent can be recycled and reused;

[0056] The plastic shell continues to rotate and move into the inner side of the drying chamber 1004 along with the cross belt 6. At this time, the dryer 28 works to blow out hot air, so that the hot air flows on the surface of the plastic shell for drying. The rotating plastic shell can be dried in all directions. At the same time, the two air purifiers 29 work at the same time to purify the air in the cleaning chamber 1002 and the drying chamber 1004, making it difficult for the irritating gas inside the opening pipe 1 to escape to the outside through the cleaning chamber 1002 and the drying chamber 1004.

[0057] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above-described embodiments and descriptions in the specification are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A rainproof plastic spraying production line, comprising an open pipe (1), characterized in that: The open tube (1) is divided into four areas, namely, a material changing area (1001), a cleaning room (1002), a spraying room (1003) and a drying room (1004). An inner C ring (3) and an outer C ring (4) are fixedly mounted on the inner side of the top wall of the open tube (1) via a plurality of connecting frames (2). The inner C ring (3) is located on the inner side of the outer C ring (4). Inclined plates (13) are provided at the bottom of the inner C ring (3) and the outer C ring (4), and the inclined plates (13) are located on the inner side of the spraying room (1003). A tooth groove is provided at one end of the inner C ring (3) close to the bottom. A slidable cross belt (6) is arranged between the inner C ring (3) and the outer C ring (4); a plurality of rotatable hangers (8) are arranged at the bottom of the cross belt (6); a vibration mechanism (10) is arranged inside the hanger (8); the vibration mechanism (10) includes two abutment rods (103); meshing teeth (9) are fixedly mounted on the outer side of the hanger (8), and the meshing teeth (9) mesh with the tooth grooves; a driving mechanism (12) is arranged inside the inner C ring (3) and the outer C ring (4); the driving mechanism (12) includes two groups of squeezing rollers (124); The vibration mechanism (10) is configured to switch the interference rod (103) and the inclined plate (13) between the interference state and the non-interference state through the rotation movement of the hanger (8), thereby completing the vibration operation; A driving mechanism (12) is configured to rotate through two sets of squeezing rollers (124) and drive the cross belt (6) to move by friction with the cross belt (6); The vibration mechanism (10) further comprises a vibration spring (101), one end of the vibration spring (101) being fixedly mounted on the inner side of the bottom wall of the column slot (81), the other end of the vibration spring (101) being fixedly mounted on a top plate (102), two abutment rods (103) being fixedly mounted on both sides of the top plate (102), respectively, and the abutment rods (103) being located on the inner side of the movable hole (82), one end of a connecting rod (104) being fixedly mounted on the bottom of the top plate (102), and the other end of the connecting rod (104) passing through the bottom of the column slot (81) and being fixedly mounted on a clamp (11).

2. The rainproof plastic spraying production line according to claim 1 is characterized in that: A plurality of bearing seats (7) are fixedly mounted on the bottom of the cross belt (6); one end of the hanger (8) is rotatably connected to the bearing seat (7) via a bearing; a column groove (81) is provided inside the hanger (8); movable holes (82) are respectively provided on both sides of the hanger (8); and the movable holes (82) are communicated with the column groove (81).

3. The rainproof plastic spraying production line according to claim 2 is characterized in that: A small C ring (5) is fixedly mounted on one end of the outer C ring (4) close to the bottom, and two ends of the small C ring (5) are in sliding contact with the bearing seat (7) and one side of the hanger (8), respectively, and the inclined plate (13) is fixedly mounted on the bottom of the small C ring (5).

4. The rainproof plastic spraying production line according to claim 3 is characterized in that: The driving mechanism (12) further comprises a plurality of driving shafts (121), the plurality of driving shafts (121) respectively passing through the top of the outer C ring (4) via bearings, the top of the driving shaft (121) passing through the top of the open tube (1) via bearings, a plurality of synchronous motors (122) are fixedly mounted on the top of the open tube (1), and the output end of the synchronous motor (122) is fixedly connected to the top of the driving shaft (121), a plurality of driven shafts (123) are installed on the top of the inner C ring (3) via bearings, the top of the driven shaft (123) is rotatably mounted on the inner side of the top wall of the open tube (1) via bearings, each group of squeezing rollers (124) comprises two driving shafts (121), and the driving shafts (121) are respectively passing through the top of the outer C ring (4) via bearings, and the top of the driving shafts (123) are rotatably mounted on the inner side of the top wall of the open tube (1) via bearings, and each group of squeezing rollers (124) comprises two driving shafts (121), and the driving shafts (121) are respectively passing through the top of the outer C ring (4) and the top of the driving shafts (123) are respectively passing through the top of the outer C ring (3) and the top of the driven ... A group of squeezing rollers (124) are fixedly mounted on the outer sides of the driving shaft (121) and the driven shaft (123), respectively. The two squeezing rollers (124) on the outer side of the driving shaft (121) are respectively located on the inner side and the top of the outer C ring (4), and the two squeezing rollers (124) on the outer side of the driven shaft (123) are respectively located on the inner side and the top of the inner C ring (3). The two groups of squeezing rollers (124) are respectively in squeezing contact with the two sides of the cross belt (6). Large gears (125) are fixedly mounted on the outer sides of the driving shaft (121) and the driven shaft (123), respectively. The large gears (125) are located on the tops of the squeezing rollers (124), and the two large gears (125) are meshed.

5. The rainproof plastic spraying production line according to claim 4 is characterized in that: A collecting groove (14) is provided on the inner side of the bottom wall of the spray chamber (1003), and a filter screen (15) is provided on the inner side of the collecting groove (14). Two groups of bearing rings (16) are fixedly installed on the inner wall of the spray chamber (1003), and each group of bearing rings (16) has two bearing rings. A rotating ring (17) is rotatably installed on the inner side of the bearing ring (16), and a plurality of scrapers (18) are fixedly installed between the two rotating rings (17) of each group, and the scrapers (18) are rotatably installed with the spray chamber (1003). The inner wall of the spray chamber (1003) is in contact with the inner wall, and a bevel gear 1 (19) is fixedly installed on the side where the two rotating rings (17) near the middle are close to each other. A driving motor (21) is fixedly installed on the top of the spray chamber (1003), and the output end of the driving motor (21) passes through the top of the spray chamber (1003). A bevel gear 2 (20) is fixedly installed on the outer side of the output end of the driving motor (21) located on the inner side of the spray chamber (1003), and the bevel gear 2 (20) is respectively meshed with the two bevel gears 1 (19).

6. The rainproof plastic spraying production line according to claim 5 is characterized by: A sprayer (22) is fixedly installed on one side of the spraying chamber (1003), a delivery pipe (23) is fixedly installed on one side of the sprayer (22), the delivery pipe (23) passes through the interior of the spraying chamber (1003), and the delivery pipe (23) is located between two bevel gears (19), a plurality of atomizing nozzles (24) are installed inside the delivery pipe (23), a reflux pump (25) is fixedly installed on one side of the sprayer (22) close to the spraying chamber (1003), one end of a reflux pipe (26) is fixedly installed on the input end of the reflux pump (25), and the other end of the reflux pipe (26) passes through the interior of the open pipe (1) and is communicated with the collecting tank (14).

7. The rainproof plastic spraying production line according to claim 1 is characterized by: A cleaning brush (27) is fixedly mounted on the inner wall of the cleaning chamber (1002) on one side close to the inner diameter via a plurality of support rods, and an air purifier (29) is fixedly mounted on the inner wall of the cleaning chamber on one side close to the outer diameter.

8. The rainproof plastic spraying production line according to claim 1 is characterized by: A dryer (28) is fixedly mounted on the inner wall of the drying chamber (1004) on one side close to the inner diameter, and another air purifier (29) is fixedly mounted on the inner wall of the drying chamber on one side close to the outer diameter.

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