An automated production line for belt pulleys

Abstract

The present invention provides an automatic production line for belt pulleys, which relates to the technical field of belt pulley production and processing. An automatic production line for belt pulleys includes a conveying frame, a fixed cover, a support table, a belt pulley and a processing box. A lead screw slide table is fixedly connected to the inner top wall of the fixed cover. A hydraulic rod is fixedly connected to the slider of the lead screw slide table. A connecting column is fixedly connected to the telescopic end of the hydraulic rod. A chassis is placed on the support table. A sleeve column is fixedly connected to the top of the chassis. The belt pulley is sleeved on the sleeve column. An electromagnet for adsorbing the top of the sleeve column is embedded at one end of the connecting column. By means of a driving mechanism to drive the rotating tube to rotate, the drying mechanism is used to comprehensively dry the belt pulley. After drying, the belt pulley is sent to the conveyor line inside the conveying frame for conveying, completing the automatic production of the processes of feeding, immersion, drying and discharging of the belt pulley, and greatly improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to a production line, specifically an automatic production line for pulleys, belonging to the technical field of pulley production and processing. Background Art

[0002] Pulleys belong to disc hub parts, generally with relatively large dimensions. In manufacturing processes, casting and forging are mainly used. Generally, for larger-sized designs, the casting method is used, and the material is generally cast iron (with good casting performance), and rarely cast steel (poor casting performance of steel); for smaller-sized ones, they can be designed for forging, and the material is steel. Pulleys are mainly used in occasions where power needs to be transmitted over a long distance, such as the power output of small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging presses, and the power transmission of some small-horsepower motorcycles. Pulleys are easily rusted when exposed to air, so it is necessary to perform rust prevention treatment on pulleys during production to extend their storage or service life.

[0003] Chinese Patent Publication No. CN219745236U discloses an anti-rust spraying device for the production of automotive pulleys, including a paint spraying chamber and a fixing plate. The top of the fixing plate is rotationally connected with a bearing plate through a transfer mechanism. Two groups of fixing mechanisms for positioning pulleys of different sizes are fixedly installed on the surface of the bearing plate. A rotating mechanism is fixedly installed on the surface of the paint spraying chamber. Two groups of spraying pipes are arranged through the surface of the rotating mechanism, and the bottom of the spraying pipe is fixedly communicated with a spray head.

[0004] However, the inventor believes that the above device has certain defects. After the anti-rust process of the pulley is completed, the above device generally uses the natural drying method, which takes a lot of time, and a large amount of manpower is required for feeding, anti-rust treatment, and taking materials, with low efficiency. Therefore, the present invention provides an automatic production line for pulleys. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] The purpose of the present invention is to provide an automatic production line for pulleys to solve the problems in the prior art that natural drying takes a lot of time and a large amount of manpower is required for feeding, anti-rust treatment, and taking materials, with low efficiency.

[0007] (II) Technical Solutions

[0008] The present invention is realized through the following technical solutions: An automatic production line for pulleys, including a conveying frame, a fixed cover, a support table, a pulley, and a processing box. A lead screw slide is fixedly connected to the inner top wall of the fixed cover. A hydraulic rod is fixedly connected to the slider of the lead screw slide. A connecting column is fixedly connected to the telescopic end of the hydraulic rod. A chassis is placed on the support table. A sleeve column is fixedly connected to the top of the chassis. The pulley is sleeved on the sleeve column. An electromagnet for adsorbing the top of the sleeve column is inlaid at one end of the connecting column. An immersion cavity and a drying cavity are provided inside the processing box. A fixing plate is fixedly connected to the inside of the drying cavity. A drying mechanism for drying the pulley is provided inside the drying cavity. The drying mechanism includes a rotating tube rotating on the fixing plate. A connecting cylinder is fixedly communicated with the top of the rotating tube. An L-shaped hot air pipe is fixedly communicated with the connecting cylinder. A horizontal hot air pipe is installed at one end of the L-shaped hot air pipe. Air blowing holes are opened on both the L-shaped hot air pipe and the horizontal hot air pipe. The L-shaped hot air pipe and the horizontal hot air pipe are connected and communicated through a connecting hose. The outer surfaces of the L-shaped hot air pipe and the horizontal hot air pipe are connected by an elastic steel sheet. A driving mechanism for driving the rotating tube to rotate is provided inside the drying cavity. Two first conveyor belts and one second conveyor belt are installed inside the conveying frame. The two first conveyor belts are arranged directly above the second conveyor belt. The pulleys placed on the two first conveyor belts are conveyed by the two first conveyor belts. A protection structure is also included.

[0009] Preferably, the protection structure is arranged on the second conveyor belt. The protection structure includes a fixed sleeve, an L-shaped rod, and a second spring. A plurality of the L-shaped rods are hingedly connected inside the fixed sleeve on the same horizontal plane. The L-shaped rod includes an upper rod and a lower rod. The lower rod is fixedly connected with the second spring. The other end of the second spring is fixed on the inner wall of the fixed sleeve.

[0010] Preferably, the protection structure further includes a collar, an elastic rope, and a central collar. The free end of the lower rod is fixed with the collar. The central collar is located near the center of the fixed sleeve. The collar and the central collar are connected by an elastic rope. Adjacent collars are connected by an elastic rope.

[0011] Preferably, the distance value between the two first conveyor belts is less than the maximum diameter value of the pulley, and the distance value between the two first conveyor belts is greater than the maximum diameter value of the chassis. The chassis falls onto the second conveyor belt through the gap between the two first conveyor belts for conveying.

[0012] Preferably, an outer connecting pipe is communicated with the bottom of the rotating tube. The bottom of the rotating tube is rotatably connected to one end of the outer connecting pipe. The outer connecting pipe is provided to be connected and communicated with an external hot air device.

[0013] Preferably, the driving mechanism includes a driving motor fixed to the bottom wall of the drying chamber. Sprockets are fixedly connected to the output rotating shaft of the driving motor and the rotating tube respectively, and the two sprockets are connected by a transmission chain. By starting the driving motor, the rotating tube is driven to rotate under the action of the two sprockets and the chain.

[0014] Preferably, a through groove communicating with the immersion chamber is formed in the inner wall of the drying chamber, and an electric heating plate is fixedly connected to the inner wall of the drying chamber. The excess rust inhibitor on the fixing plate flows into the interior of the immersion chamber through the through groove.

[0015] Preferably, the number of the L-shaped hot air pipes is multiple, and the multiple L-shaped hot air pipes are distributed in a circumferential array on the connecting cylinder. The multiple L-shaped hot air pipes blow dry the pulley in multiple directions.

[0016] Preferably, a dust removal device is further included. The dust removal device includes an elastic air bag arranged at the top end of the upper end rod. A gas passage is arranged inside the L-shaped rod, and gas through holes connecting the gas passage are arranged on the surface of the L-shaped rod. The gas passage communicates with the elastic air bag.

[0017] The present invention provides an automatic production line for pulleys, and its beneficial effects are as follows:

[0018] The device drives the sleeve column at one end of the connecting column to move horizontally through the set screw slide, and drives the sleeve column at one end of the connecting column to move up and down through the set hydraulic rod, so as to drive the pulley on the chassis to move horizontally and vertically. By immersing the pulley in the rust inhibitor inside the immersion chamber, after the immersion is completed, the pulley is driven to fall into the interior of the drying chamber. The pulley squeezes the horizontal hot air pipe to make the pulley extend into the interior of the L-shaped hot air pipe. Then, the elastic steel sheet is used to quickly reset the horizontal hot air pipe when it is not stressed. By blowing hot air into the interior of the rotating tube, and then spraying it out through the air holes on the L-shaped hot air pipe and the horizontal hot air pipe to dry the surface of the pulley, and the driving mechanism is used to drive the rotating tube to rotate, so that the drying mechanism dries the pulley comprehensively. After drying, the pulley is sent to the conveyor line inside the conveyor rack for conveying, completing the automatic production of the processes of feeding, immersing, drying, and discharging the pulley, greatly improving the production efficiency.

[0019] The device makes one end of the connecting column generate magnetism by energizing the electromagnet to adsorb the sleeve column, and stops energizing the electromagnet to make one end of the connecting column lose magnetism. The sleeve column falls under its own weight, and the pulley falls on the two first conveyor belts for conveying, and the chassis and the sleeve column fall on the second conveyor belt for conveying, thus completing the automatic separation of the chassis and the pulley without manual disassembly.

[0020] The present invention also sets a protection structure and a dust removal structure, so as to better protect the second conveyor belt and also realize the centering of the chassis.

[0021] The present invention also provides a buffer support plate structure, which can achieve buffering and anti-slip functions.

[0022] The present invention also provides a scraper, which can better scrape the rust inhibitor so that the excess rust inhibitor enters the immersion chamber. Description of the Drawings

[0023] Figure 1 is the overall three-dimensional view of the present invention;

[0024] Figure 2 is the cross-sectional view of the fixed cover of the present invention;

[0025] Figure 3 is the three-dimensional view of the support table of the present invention;

[0026] Figure 4 is the cross-sectional three-dimensional view of the processing box of the present invention;

[0027] Figure 5 is of the present invention Figure 4 magnified schematic view at A in;

[0028] Figure 6 is the schematic view of the protection structure of the present invention;

[0029] Figure 7 is the schematic view of a further embodiment of the protection structure of the present invention;

[0030] Figure 8 is the schematic view of the dust removal device of the present invention;

[0031] Figure 9 is the schematic view of the buffer support plate of the present invention;

[0032] Figure 10 is the schematic view of the 90-degree limit hinge of the buffer support plate of the present invention;

[0033] Figure 11 is the schematic view of the scraper of the present invention.

[0034]

Description of the Main Component Symbols

[0035] 1. Conveyor frame; 11. First conveyor belt; 12. Second conveyor belt; 2. Fixed cover; 21. Lead screw slide; 22. Hydraulic rod; 23. Connecting column; 24. Electromagnet; 3. Support table; 31. Chassis; 32. Sleeve column; 4. Pulley; 5. Processing box; 51. Immersion chamber; 52. Drying chamber; 53. Electric heating plate; 54. Through groove; 6. Fixed plate; 7. Rotating tube; 71. Connecting cylinder; 72. L-shaped hot air duct; 73. Horizontal hot air duct; 74. Connecting hose; 75. Outer connecting pipe; 8. Elastic steel sheet; 9. Driving motor; 10. Protection structure; 101. Fixed sleeve; 102. Upper end rod; 103. Hinge; 104. Lower end rod 104; 105. Second spring; 106. Collar 106; 107. Elastic rope; 108. Central collar; 109. Elastic airbag; 110. Buffer support plate; 111. Connecting spring; 112. Sector-shaped limiting part; 113. 90-degree limiting hinge; 120. Scraper structure 120; 121. Outer scraper; 122. Flexible scraper section; 123. Inner scraper; 124. Air jet hole. Detailed implementation manners

[0036] An embodiment of the present invention provides an automatic production line for pulleys.

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , an automatic production line for pulleys, including a conveyor frame 1, a fixed cover 2, a support table 3, a pulley 4 and a processing box 5. A lead screw slide 21 is fixedly connected to the inner top wall of the fixed cover 2. A hydraulic rod 22 is fixedly connected to the slider of the lead screw slide 21. The telescopic end of the hydraulic rod 22 is fixedly connected to a connecting column 23. The lead screw slide 21 drives the hydraulic rod 22 to move horizontally, and the provided hydraulic rod 22 drives the connecting column 23 to lift and lower. A chassis 31 is placed on the support table 3. A sleeve column 32 is fixedly connected to the top of the chassis 31. The pulley 4 is sleeved on the sleeve column 32. One end of the connecting column 23 is inlaid with an electromagnet 24 that adsorbs the top of the sleeve column 32. The sleeve column 32 is made of iron material. The pulley 4 is sleeved on the sleeve column 32 on the chassis 31 to support the bottom of the pulley 4. By energizing the electromagnet 24, one end of the connecting column 23 generates magnetism to adsorb the sleeve column 32, driving the pulley 4 to move horizontally and lift and lower. Stop energizing the electromagnet 24 so that one end of the connecting column 23 loses magnetism.

[0038] Please refer to again Figure 1 and Figure 2, two first conveyor belts 11 and one second conveyor belt 12 are installed inside the conveying rack 1. The two first conveyor belts 11 are arranged directly above the second conveyor belt 12. The distance value between the two first conveyor belts 11 is less than the maximum diameter value of the pulley 4, and the distance value between the two first conveyor belts 11 is greater than the maximum diameter value of the chassis 31. After the pulley 4 is processed, the connecting column 23 is moved between the two first conveyor belts 11. By cutting off the power supply of the electromagnet 24, the pulley 4, the chassis 31, and the sleeve column 32 freely fall. The pulley 4 falls between the two first conveyor belts 11 for conveying, and the chassis 31 and the sleeve column 32 fall on the second conveyor belt 12 for conveying, saving the workload of manually disassembling the pulley 4 and the chassis 31.

[0039] Please refer to again Figure 1 , Figure 2 , Figure 4 and Figure 5 , an immersion cavity 51 and a drying cavity 52 are provided inside the processing box 5. A fixing plate 6 is fixedly connected inside the drying cavity 52. A drying mechanism for drying the pulley 4 is provided inside the drying cavity 52. The drying mechanism includes a rotating tube 7 rotating on the fixing plate 6. A connecting cylinder 71 is fixedly connected to the top of the rotating tube 7. An L-shaped hot air pipe 72 is fixedly connected to the connecting cylinder 71. The number of the L-shaped hot air pipes 72 is multiple, and the multiple L-shaped hot air pipes 72 are distributed in a circumferential array on the connecting cylinder 71. The bottom of the rotating tube 7 is communicated with an external connecting pipe 75. The bottom of the rotating tube 7 is rotatably connected to one end of the external connecting pipe 75. By connecting the external connecting pipe 75 to an external hot air device, hot air is conveyed to the rotating tube 7 through the external connecting pipe 75. The hot air is conveyed to the inside of the L-shaped hot air pipe 72 through the rotating tube 7 and the connecting cylinder 71. A horizontal hot air pipe 73 is installed at one end of the L-shaped hot air pipe 72. Air blowing holes are formed in both the horizontal hot air pipe 73 and the L-shaped hot air pipe 72. The hot air is sprayed out through the air blowing holes in the horizontal hot air pipe 73 and the L-shaped hot air pipe 72 to blow-dry the top surface, bottom surface, and outer surface of the pulley 4 comprehensively.

[0040] Please refer to again Figure 1 , Figure 2 , Figure 4 and Figure 5 , the L-shaped hot air pipe 72 and the horizontal hot air pipe 73 are connected through a connecting hose 74. By providing the connecting hose 74, the L-shaped hot air pipe 72 and the horizontal hot air pipe 73 are connected. The outer surface of the L-shaped hot air pipe 72 and the outer surface of the horizontal hot air pipe 73 are connected through an elastic steel sheet 8. When the horizontal hot air pipe 73 is squeezed, it will bend downward or upward. When the horizontal hot air pipe 73 is not stressed, it quickly returns to its original position through the rebound of the elastic steel sheet 8, facilitating the pulley 4 to extend into or out of the drying mechanism.

[0041] Please refer to again Figure 4, a driving mechanism for driving the rotating tube 7 to rotate is provided inside the drying chamber 52. The driving mechanism includes a driving motor 9 fixed on the inner bottom wall of the drying chamber 52. Sprockets are fixedly connected to both the output rotating shaft of the driving motor 9 and the rotating tube 7. The two sprockets are connected by a transmission chain. By starting the driving motor 9, the rotating tube 7 is driven to rotate under the action of the transmission chain and the two sprockets, so as to dry the pulley 4 comprehensively.

[0042] Please refer to again Figure 4 , a through groove 54 communicating with the immersion chamber 51 is formed on the inner wall of the drying chamber 52. The rust inhibitor falling on the fixing plate 6 flows back into the inside of the immersion chamber 51 through the through groove 54, reducing the waste of the rust inhibitor. An electric heating plate 53 is fixedly connected to the inner wall of the drying chamber 52. By starting the electric heating plate 53, the inside of the drying chamber 52 is heated, improving the drying efficiency of the pulley 4.

[0043] Working principle: Before the device is used, it is run and debugged. One end of the external connection pipe 75 is communicated with a hot air device. After debugging, the pulley 4 and the sleeve column 32 are assembled and placed on the support table 3. By energizing the electromagnet 24, one end of the connecting column 23 generates magnetism to adsorb the sleeve column 32. The adsorbed pulley 4 is driven to move horizontally by the lead screw slide table 21. When it moves to directly above the immersion chamber 51, the hydraulic rod 22 is started to drive the pulley 4 to descend and immerse it in the rust inhibitor inside the immersion chamber 51. After immersion, the hydraulic rod 22 is driven to drive the pulley 4 to rise, and the pulley 4 is driven to move horizontally by the lead screw slide table 21. When it moves to directly above the drying chamber 52, the hydraulic rod 22 is started to drive the pulley 4 to descend. The pulley 4 is used to squeeze the horizontal hot air pipe 73 to bend downward, so that the pulley 4 extends between a plurality of L-shaped hot air pipes 72. Then, the elastic steel sheet 8 rebounds to drive the horizontal hot air pipe 73 to quickly reset. Then, hot air is conveyed into the inside of the external connection pipe 75, and then blown out through the air holes on the L-shaped hot air pipes 72 and the horizontal hot air pipe 73 to perform hot air drying on the top surface, bottom surface and outer surface of the pulley 4. During the drying process, the driving motor 9 is started to drive the rotating tube 7 to rotate to dry the pulley 4 comprehensively. The electric heating plate 53 is started to heat up the inside of the drying chamber 52. After drying, the hydraulic rod 22 is driven to drive the pulley 4 to rise. Under the action of the lead screw slide table 21, the connecting column 23 moves between the two first conveyor belts 11. By de-energizing the electromagnet 24, the pulley 4, the chassis 31 and the sleeve column 32 freely fall. The pulley 4 falls between the two first conveyor belts 11 for conveying, and the chassis 31 and the sleeve column 32 fall on the second conveyor belt 12 for conveying, completing the automatic production of feeding, immersion, drying and discharging of the pulley 4.

[0044] Furthermore, refer to Figure 6, To prevent the chassis 31 and the sleeve column 32 from damaging the second conveyor belt 12 or rolling undesirably on the second conveyor belt 12 when they fall onto the second conveyor belt 12, thus injuring others, the present invention further includes a protection structure 10. The protection structure 10 is arranged on the second conveyor belt 12. The protection structure 10 includes a fixed sleeve 101. Inside the fixed sleeve 101, a plurality of L-shaped rods are hinged 103 at the same horizontal plane. The L-shaped rod includes an upper rod 102 and a lower rod 104. A second spring 105 is fixedly connected to the lower rod 104. The other end of the second spring 105 is fixed on the inner wall of the fixed sleeve 101. Working process: In the natural state, due to the supporting action of the second spring 105, the lower rod 104 of the L-shaped rod is close to the horizontal state. When the chassis 31 and the sleeve column 32 fall, due to possible falling precision errors and the possible different radius sizes of each chassis 31 and sleeve column 32, it is very difficult to fall exactly in the center of the fixed sleeve 101. After the chassis 31 contacts the lower rod 104, it presses down the lower rod 104. The rotation of the lower rod 104 will drive the upper rod 102 to rotate inward. The upper rod 102 will press against the sleeve column 32, finally realizing proper centering and buffering and fixing of the chassis 31 and the sleeve column 32. The protection structure 10 can achieve the effects of proper centering of the chassis 31 and the sleeve column 32 and buffering and fixing of different-sized structures.

[0045] Furthermore, referring to Figure 7 , To better buffer and fix the protection structure 10 and prevent the accidental passing of the chassis 31 and the sleeve column 32 through the L-shaped rod and falling onto the second conveyor belt 12, a collar 106 is fixed to the other end of each lower rod 104. The central collar 108 is located at a position close to the center of the fixed sleeve 101. The collar 106 and the central collar 108 are connected by an elastic cord 107. The adjacent collars 106 are connected by an elastic cord 107. The elastic cords 107 finally form an elastic triangular form, providing better buffering and support. And for better elastic support, the elastic cords 107 form a multi-loop cobweb structure.

[0046] Furthermore, referring to Figure 8 , To better achieve a partial dust removal effect, the present invention further includes a dust removal device. The dust removal device includes an elastic airbag 109. An elastic airbag 109 is arranged at the top end of the upper rod 102. The L-shaped rod is provided with a gas channel. Gas through holes connecting the gas channel are arranged on the surface of the L-shaped rod. When the sleeve column 32 presses the elastic airbag 109, gas can be discharged through the gas through holes to remove dust on the surface of the sleeve column 32. At the same time, the elastic airbag 109 can play a buffering role.

[0047] Furthermore, referring to Figure 9, in order to prevent the pulley 4 from touching the first conveyor belt 11, ensure that the frictional force is insufficient to cause the pulley 4 to slip, and avoid damage to the first conveyor belt 11 due to lack of buffering when the pulley 4 drops, a plurality of buffer support plates 110 are hinged to the first conveyor belt 11. The buffer support plates 110 are evenly distributed along the traveling direction of the first conveyor belt 11 and are evenly distributed on the surface of the first conveyor belt 11 perpendicular to the traveling direction. The buffer support plates 110 are inclined, and the inclined direction is towards the traveling direction. A connecting spring 111 is arranged between the buffer support plate 110 and the first conveyor belt 11. Working principle: When the pulley 4 falls onto the first conveyor belt 11, it simultaneously presses the buffer support plates 110, and relies on the deformation of the connecting spring 111 for buffering.

[0048] Furthermore, referring to Figure 9 and Figure 10 , in order to prevent the pulley 4 from sliding and moving left and right along the first conveyor belt 11, the hinged connection between the first conveyor belt 11 and the buffer support plate 110 is a 90-degree limit hinge 113. A clamping column is fixed at the end of the buffer support plate 110, and the clamping column is clamped in the fan-shaped limiting portion 112. Buffer springs are arranged at both ends of the buffer support plate 110 and are fixedly connected to the two fan-shaped limiting ends of the fan-shaped limiting portion 112. The fan-shaped limiting portion 112 makes the maximum movement angle between the buffer support plate 110 and the first conveyor belt 11 90 degrees. When the pulley 4 moves left or right or backward due to the action of the buffer support plates 110 adjacent to it in the front, back, left, and right directions, the buffer support plate 110 can achieve limiting.

[0049] Furthermore, referring to Figure 11, in order to make the rust inhibitor on the fixing plate 6 better enter the immersion cavity 51, a scraping structure 120 is provided on the surface of the fixing plate 6. The scraping structure 120 is arranged at the left end of the drying cavity 52. Both the left and right ends of the scraping structure 120 are hinged to the driving structure. The driving structure can be a nut-screw structure or a piston rod structure. The driving structure is arranged on both sides of the drying cavity 52. The scraping structure 120 includes a flexible scraping section 122 and a telescopic scraping section. The middle of the scraping structure 12 is the flexible scraping section 122. An arc section is arranged at the center of the flexible scraping section 122. The arc section cooperates with the rotating pipe 7. Both sides of the flexible scraping section 122 are telescopic scraping sections. The telescopic scraping section includes an inner scraping plate 123 and an outer scraping plate 121. The inner scraping plate 123 is sleeved inside the outer scraping plate 121. The inner scraping plate 123 can slide inside the outer scraping plate 121. A plurality of air spray holes 124 are arranged on the telescopic scraping section, which can blow the rust inhibitor. Working process: When the scraping structure 12 moves to the right along the drying cavity 52, the scraping structure 12 scrapes in a straight line to the right as a whole. When the rotating pipe 7 contacts and cooperates with the arc section of the flexible scraping section 122, the middle part of the scraping structure 120 does not move, and both sides continue to move forward under the drive of the driving structure. Thus, the telescopic scraping section drives the rust inhibitor through groove 54 towards the middle of the drying cavity 52, avoiding the accumulation of rust inhibitor on both sides of the through groove 54 in the drying cavity 52 caused by the straight brush plate driving the rust inhibitor. The setting of the air spray holes 124 can make the rust inhibitor more easily pass through the through groove 54. In addition, further, in order to facilitate the rust inhibitor to pass through the through groove 54, the fixing plate 6 is an inclined structure with a higher left end and a lower right end.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates 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 all fall within the scope of the present invention claimed.

Claims

1. An automated production line for belt pulleys, comprising a conveying frame (1), a fixed cover (2), a support table (3), a belt pulley (4) and a processing box (5), characterized in that: The inner top wall of the fixed cover (2) is fixedly connected with a screw rod slide table (21). A hydraulic rod (22) is fixedly connected to the slider of the screw rod slide table (21). The telescopic end of the hydraulic rod (22) is fixedly connected with a connecting column (23). A chassis (31) is placed on the support table (3). A sleeve column (32) is fixedly connected to the top of the chassis (31). The pulley (4) is sleeved on the sleeve column (32). One end of the connecting column (23) is inlaid with an electromagnet (24) that adsorbs the top of the sleeve column (32). An immersion cavity (51) and a drying cavity (52) are arranged inside the processing box (5). A fixing plate (6) is fixedly connected inside the drying cavity (52). A drying mechanism for drying the pulley (4) is arranged inside the drying cavity (52). The drying mechanism includes a rotating tube (7) rotating on the fixing plate (6). A connecting cylinder (71) is fixedly communicated with the top of the rotating tube (7). An L-shaped hot air pipe (72) is fixedly communicated with the connecting cylinder (71). A horizontal hot air pipe (73) is installed at one end of the L-shaped hot air pipe (72). Air blowing holes are formed in both the horizontal hot air pipe (73) and the L-shaped hot air pipe (72). The L-shaped hot air pipe (72) and the horizontal hot air pipe (73) are communicated with each other through a connecting hose (74). The outer surfaces of the L-shaped hot air pipe (72) and the horizontal hot air pipe (73) are connected through an elastic steel sheet (8). A driving mechanism for driving the rotating tube (7) to rotate is arranged inside the drying cavity (52). Two first conveyor belts (11) and one second conveyor belt (12) are installed inside the conveying rack (1). The two first conveyor belts (11) are arranged directly above the second conveyor belt (12). The distance value between the two first conveyor belts (11) is smaller than the maximum diameter value of the pulley (4). The distance value between the two first conveyor belts (11) is larger than the maximum diameter value of the chassis (31). The driving mechanism includes a driving motor (9) fixed on the inner bottom wall of the drying cavity (52). Sprockets are fixedly connected to the output rotating shaft of the driving motor (9) and the rotating tube (7). The two sprockets are connected by a transmission chain. A through groove (54) communicating with the immersion cavity (51) is formed in the inner wall of the drying cavity (52). An electric heating plate (53) is fixedly connected to the inner wall of the drying cavity (52). The number of the L-shaped hot air pipes (72) is multiple, and the multiple L-shaped hot air pipes (72) are distributed in a circumferential array on the connecting cylinder (71).

2. The automated production line of a pulley according to claim 1, characterized in that: An outer connecting pipe (75) is communicated with the bottom of the rotating tube (7). The bottom of the rotating tube (7) is rotatably connected to one end of the outer connecting pipe (75).

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