Automatic packaging production line for pipe fittings

Abstract

The invention discloses an automatic pipe fitting packaging production line, and relates to the technical field of packaging equipment, the automatic pipe fitting packaging production line comprises an automatic cover buckling station, the automatic cover buckling station comprises a rack electric cabinet, a mechanical arm is fixedly mounted on the rack electric cabinet, a positioning seat and a sliding table are arranged on the rack electric cabinet, a cover buckling box is mounted on the sliding table, and a sliding block is slidably connected to the interior of the cover buckling box; one side of the sliding block is rotationally connected with an embedded plate, a clamping unit is arranged on the embedded plate, the automatic cover buckling station further comprises a rotating assembly, the rotating assembly comprises a spring arranged between the sliding block and the cover buckling box, an inner cylinder and a sleeve are fixed to the inner side of the embedded plate and the inner wall of the cover buckling box respectively, and a protruding block embedded into a sliding groove of the inner cylinder is fixed to the inner wall of the sleeve. When the end cover is clamped by burrs, the contact surface of the end cover and the pipe body slides in the circumferential direction, the burrs are removed or avoided through shearing force, and clamping stagnation of the buckling cover caused by the burrs when the buckling cover is packaged by the pipe fitting can be removed through the design, so that the damage rate of the end cover is reduced, the packaging efficiency is improved, and meanwhile, the production cost is saved.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to an automated packaging production line for pipe fittings. Background Technology

[0002] In the mass production of tees and bends, automated packaging is a key link to improve production efficiency and ensure consistent product quality. In order to protect the opening face of the pipe fittings, prevent foreign objects from damaging the pipe cavity, and avoid the edge of the pipe end from damaging the packaging, the opening of the pipe fittings is capped during automated packaging.

[0003] Traditional pipe fitting packaging production lines use a capping mechanism consisting of a slide table, a receiving table, and a feeding structure. When a pipe fitting passes through the capping station, the feeding mechanism supplies the end cap to the receiving table. The slide table then moves the receiving table, causing the end cap to be fastened to the end of the pipe fitting. However, to maintain production efficiency, burrs generated during pipe fitting machining cannot be completely removed. During capping, these burrs can come into contact with the mating surface of the end cap, causing jamming during the capping process. In this case, the rigid pushing method significantly increases the pressure on the end cap, easily leading to cracking and damage. Furthermore, plastic end caps are prone to edge deformation due to external forces, making it difficult for the end cap to fit snugly against the pipe fitting opening, resulting in capping failure. Summary of the Invention

[0004] The purpose of this invention is to solve the problems that when pipe fittings have burrs, the end caps are prone to cracking due to excessive force, and the edges of plastic end caps are prone to deformation and cannot be fastened. Therefore, an automated packaging production line for pipe fittings is proposed.

[0005] To achieve the above objectives, the present invention employs the following technology: an automated packaging production line for pipe fittings includes an automatic capping station, wherein the automatic capping station includes a frame electrical cabinet, a robotic arm is fixedly installed on the frame electrical cabinet, a positioning seat and a slide table are provided on the frame electrical cabinet, a capping box is installed on the slide table, a slider is slidably connected inside the capping box, an inner plate is rotatably connected to one side of the slider, and a clamping unit is provided on the inner plate; The automatic cap-closing station also includes a rotating assembly, which includes a spring disposed between the slider and the cap-closing box. An inner cylinder and a sleeve are respectively fixed to the inner side of the inner plate and the inner wall of the cap-closing box. The sleeve is sleeved on the outside of the inner cylinder, and a protrusion embedded in the inner cylinder groove is fixed to the inner wall of the sleeve. When the cap jams, the inner cylinder penetrates into the sleeve and deflects under the guidance of the protrusion, causing the end cap to rotate and lock in place via the inner plate.

[0006] As a further description of the above-mentioned automated packaging production line for pipe fittings: the groove on the inner cylinder is composed of straight segments and spiral segments connected end to end.

[0007] As a further description of the above-mentioned automated packaging production line for pipe fittings: the slide table includes a limiting frame and a motor fixed on the machine frame cabinet. A bearing block is slidably connected inside the limiting frame, and a lead screw that is threadedly connected to the bearing block is fixed on the output shaft of the motor.

[0008] As a further description of the above-mentioned automated packaging production line for pipe fittings: the automatic capping station also includes a flipping structure, the flipping structure including a shaft rotatably connected to the top of the support block and fixed to the capping box, the end of the shaft having two push plates at a 90-degree angle, the top of the limiting frame having a blocking block, and magnetic stickers fixed on both the capping box and the support block.

[0009] As a further description of the above-mentioned automated packaging production line for pipe fittings: the clamping unit includes two symmetrical grippers slidably connected to one side of the inner panel, a tension spring is fixed between the grippers and the inner panel, and rollers are rotatably connected to the opposite sides of the two grippers.

[0010] As a further description of the above-mentioned automated packaging production line for pipe fittings: an auxiliary mechanism is installed on the gripper, the auxiliary mechanism includes two side grippers fixed on the slider, a motor three is fixedly installed on the side grippers, a connecting rod is fixed on the output shaft of the motor three, and a lever is rotatably connected to one end of the connecting rod.

[0011] As a further description of the above-mentioned automated packaging production line for pipe fittings: the auxiliary mechanism also includes a limiting unit, the inner wall of the connecting rod is provided with a limiting groove, the limiting unit includes a limiting block fixed to one side of the lever and embedded in the limiting groove, and a torsion spring is provided between the connecting rod and the lever.

[0012] As a further description of the above-mentioned automated packaging production line for pipe fittings, it also includes a feeding assembly, which includes a material box and a cylinder fixed on the frame cabinet.

[0013] As a further description of the above-mentioned automated packaging production line for pipe fittings: a second motor for driving the positioning seat to rotate is fixedly installed on the frame electrical cabinet.

[0014] As a further description of the above-mentioned automated packaging production line for pipe fittings: it includes a material inspection station, a laser marking station, an automatic bagging station, and a labeling station in sequence. The automatic capping station is located between the laser marking station and the automatic bagging station. A double-speed chain for conveying pipe fittings is provided between the material inspection station and the automatic capping station.

[0015] In summary, due to the adoption of the above-mentioned technology in an automated packaging production line for pipe fittings, the beneficial effects of this invention are: 1. When burrs on the pipe fitting opening increase the resistance to capping, spring buffering can reduce the pressure on the end cap, preventing cracking and damage. The spring's buffering effect also speeds up capping, improving overall pipe fitting packaging efficiency. Furthermore, when burrs cause the end cap to jam, the capping box moves the slider and inner plate, compressing the spring and gradually inserting the inner cylinder into the sleeve. After the protrusion slides from the straight section groove to the spiral section groove, the inner cylinder, in conjunction with the groove, causes the inner plate, grippers, and end cap to deflect, resulting in circumferential sliding between the end cap and the pipe body. This shearing force removes or avoids the burrs. This design eliminates cap jamming caused by burrs during pipe fitting packaging, reducing end cap damage and increasing packaging efficiency while saving production costs.

[0016] 2. The motor drives the connecting rod and the lever to rotate, which allows the lever to position the end cap, preventing the end cap from shifting during the capping process. Furthermore, when the end cap edge is deformed and cannot fit properly with the pipe opening, the lever ensures the pipe opening contacts the end cap. If the end cap edge is blocked by the pipe and cannot be capped, the rotating component causes the end cap to deflect, resulting in relative rotation between the end cap and the lever. The lever then opens the recessed area of ​​the end cap edge, allowing the end cap to regain its deformation and fit onto the pipe opening. This design solves the problem of end caps with deformed edges failing to be capped, effectively improving the capping pass rate and ensuring continuous operation of the production line.

[0017] 3. During the capping process, the paddle can deflect and abut against the pipe under the elastic force of the torsion spring, positioning the pipe opening. By positioning the pipe and end cap separately, the alignment accuracy between the pipe and the end cap can be effectively improved, increasing the success rate of capping. Moreover, if the end cap cracks or is damaged after capping, the motor drives the connecting rod and the paddle to deflect towards the end cap. After contacting the pipe body, the paddle deflects relative to the connecting rod, and the end of the paddle slides on the surface of the pipe body, inserting between the pipe body and the end cap. This design can pry up the end cap, making it easy to remove and replace the damaged end cap. Attached Figure Description

[0018] Figure 1 An overall three-dimensional schematic diagram according to the present invention is shown; Figure 2 An overall top view according to the present invention is shown; Figure 3 The present invention is shown Figure 2 Enlarged view of point A in the middle; Figure 4 A schematic diagram of the feeding assembly according to the present invention is shown; Figure 5 A schematic diagram of the slide table according to the present invention is shown; Figure 6 A schematic diagram of the flipping structure according to the present invention is shown; Figure 7 A schematic diagram of the torsion assembly according to the present invention is shown; Figure 8 An exploded view of the torsion assembly according to the present invention is shown; Figure 9 A schematic diagram of the motor according to the present invention is shown; Figure 10 A schematic diagram of the clamping unit according to the present invention is shown; Figure 11 An exploded view of the auxiliary mechanism according to the present invention is shown; Figure 12 A diagram showing the buckle state according to the present invention is provided; Figure 13 The present invention is shown Figure 12 Enlarged view of section B in the middle.

[0019] Legend: 11. Material testing station; 12. Laser marking station; 13. Automatic bagging station; 14. Labeling station; 20. Automatic lid-closing station; 21. Frame electrical cabinet; 22. Robotic arm; 23. Slide table; 231. Limit frame; 232. Motor 1; 233. Lead screw; 234. Bearing block; 24. Tilting structure; 241. Shaft; 242. Push plate; 243. Blocking block; 244. Magnetic sticker; 25. Lid-closing box; 26. Slider; 27. Inner panel; 28. Rotating assembly; 281. Spring; 282. Inner cylinder; 283. Sleeve; 284. Protrusion; 29. ​​Positioning seat; 210. Motor 2; 30. Clamping unit; 31. Gripper; 32. Tension spring; 33. Roller; 40. Auxiliary mechanism; 41. Side claw; 42. Motor 3; 43. Connecting rod; 44. Paddle; 45. Limiting unit; 451. Limiting block; 452. Torsion spring; 50. Feeding assembly; 51. Material box; 52. Cylinder. Detailed Implementation

[0020] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a clear and complete description of an automated packaging production line for pipe fittings according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-13As shown, the present invention provides an automated packaging production line for pipe fittings, which includes, in sequence, a material inspection station 11, a laser marking station 12, an automatic capping station 20, an automatic bagging station 13, and a labeling station 14. A double-speed chain is provided between the material inspection station 11 and the automatic capping station 20. The double-speed chain drives the pipe fittings to pass through the material inspection station 11, the laser marking station 12, and the automatic capping station 20 in sequence for screening, laser marking, and capping operations, thereby realizing automated processing of pipe fittings and preparing them for subsequent packaging.

[0022] Reference Figures 2-6 The automatic capping station 20 includes a frame cabinet 21, on which a four-axis robotic arm 22 is fixedly installed. A positioning seat 29 is rotatably connected to the frame cabinet 21, and a motor 210 for driving the positioning seat 29 to rotate is fixedly installed. The positioning seat 29 is provided with a placement groove that matches the pipe fitting, and the depth of the groove is greater than the radius of the pipe fitting, so that the pipe fitting remains stable when the capping is subjected to force. A slide table 23 is provided on the frame cabinet 21, and a capping box 25 is installed on the slide table 23. The slide table 23 drives the capping box 25 to move linearly to cap the pipe fitting. A slider 26 is slidably connected inside the capping box 25. An inner plate 27 is rotatably connected to one side of the slider 26. A clamping unit 30 is provided on the inner plate 27.

[0023] Reference Figure 7 and Figure 8 To prevent the end cap from jamming due to uncleaned burrs at the pipe opening, which could cause excessive pressure and cracking, a rotating assembly 28 is provided inside the end cap box 25. The rotating assembly 28 includes a spring 281 located between the slider 26 and the end cap box 25. An inner cylinder 282 that passes through the slider 26 is fixed to the side of the inner plate 27 near the inside of the end cap box 25. A sleeve 283 that fits onto the outside of the inner cylinder 282 is fixed to the inner wall of the end cap box 25. The inner cylinder 282 has a groove composed of a straight section and a spiral section connected end to end. A protrusion 284 that is embedded in the groove of the inner cylinder 282 is fixed to the inner wall of the sleeve 283.

[0024] When the pipe is conveyed to the automatic capping station 20 by the double-speed chain, the robotic arm 22 removes the pipe from the double-speed chain and places it in the positioning seat 29 with the opening of the pipe facing the capping box 25. The clamping unit 30 fixes the end cap to be fastened to the inner plate 27. Then, the slide table 23 drives the capping box 25 to move closer to the pipe. The slider 26 and the inner plate 27 drive the end cap to move until the end cap contacts and fastens with the pipe, thus realizing automatic capping.

[0025] When the spring 281 is not compressed, the protrusion 284 is located in the straight section of the slide groove. When there are residual burrs at the opening of the pipe fitting, the resistance of the cover snapping increases. At this time, the movement of the inner plate 27 and the slider 26 is blocked, and the slider 26 moves relative to the cover snapping box 25. The spring 281 is compressed. The elastic force of the spring 281 can buffer the cover snapping, avoid the end cover from being rigidly pushed and cracked, ensure the end cover of the snapping is intact, and under the buffering effect of the spring 281, the movement speed of the slide table 23 can be accelerated when snapping the cover, thereby improving the snapping efficiency. When sharp burrs cause the cap to jam, the end cap is restricted from moving, preventing the inner plate 27 and slider 26 from moving forward. At this time, the slide table 23 continues to drive the cap box 25 to move, the spring 281 is gradually compressed, and the inner cylinder 282 gradually penetrates into the sleeve 283. The protrusion 284 slides in the straight section of the slide groove. As the inner cylinder 282 continues to penetrate into the sleeve 283, the protrusion 284 enters the spiral section of the slide groove. With the cooperation of the protrusion 284 and the slide groove, the inner cylinder 282 deflects as it penetrates into the sleeve 283, causing the inner plate 27 to deflect. This causes the end cap to rotate through the clamping unit 30, making the end cap slide circumferentially with the tube body contact surface. The burrs are removed or avoided by shearing force, the end cap jamming is released, and the cap fastening process continues. This design avoids burrs causing the cap to jam while reducing the pressure on the end cap during cap fastening, achieving smooth cap fastening and ensuring the end cap remains intact.

[0026] Reference Figure 9 and Figure 10 The clamping unit 30 includes two symmetrical clamping jaws 31 slidably connected to one side of the inner plate 27. A tension spring 32 is fixed between the clamping jaws 31 and the inner plate 27. Rollers 33 are rotatably connected to the opposite sides of the two clamping jaws 31. When the end cap is clamped by the two clamping jaws 31, the tension spring 32 is in a stretched state. Under the elastic force of the tension spring 32, the rollers 33 are tightly fitted with the end cap. When the inner plate 27 rotates, it drives the clamping jaws 31 and rollers 33 to rotate. The friction between the rollers 33 and the end cap drives the end cap to rotate, thereby eliminating the jamming when fastening the cap.

[0027] Reference Figure 4 and Figure 5 It is also equipped with a feeding assembly 50, which includes a material box 51 and a cylinder 52 fixed on the frame cabinet 21. The material box 51 is used to store end caps and has a material port at the bottom for feeding by gravity. The cylinder 52 is located at the bottom of the material box 51. The material box 51, the cylinder 52, the slide table 23 and the cap-closing box 25 are in a straight line. When the cylinder 52 extends, it pushes the end caps that are exposed in the material box 51 onto the inner plate 27 to realize automatic feeding of the caps.

[0028] The slide table 23 includes a limiting frame 231 fixed on the machine frame cabinet 21 and a motor 232. A bearing block 234 is slidably connected inside the limiting frame 231, and a lead screw 233 is rotatably connected inside the limiting frame 231. The lead screw 233 passes through the bearing block 234 and is slidably connected to the bearing block 234. The output shaft of the motor 232 is fixed to the lead screw 233. When the motor 232 drives the lead screw 233 to rotate, it drives the bearing block 234 to slide inside the limiting frame 231, thereby moving the cover box 25, the slider 26 and the inner plate 27 between the feeding assembly 50 and the pipe.

[0029] Reference Figure 5 and Figure 6 In order to connect the feeding and capping actions and realize automated capping, a flipping structure 24 is provided. The flipping structure 24 includes a shaft 241 rotatably connected to the top of the bearing block 234 and fixed to the capping box 25. Two push plates 242 with a 90-degree angle are fixed to the end of the shaft 241. A blocking block 243 is fixed to the top of the limiting frame 231. The blocking block 243 is located between the two push plates 242 and is located in the same plane as the two push plates 242. like Figure 5 and Figure 6 In the indicated state, the inner panel 27 has been fixed with the end cap by the clamping unit 30. The bearing block 234 continues to move towards the positioning seat 29 to fasten the cap. After a single cap fastening, the bearing block 234 drives the shaft 241, the cap fastening box 25, the slider 26, the inner panel 27, and the gripper 31 to move in the opposite direction. At this time, the roller 33 reduces the friction between the gripper 31 and the end cap to prevent the end cap from falling off. When the bearing block 234 moves to the position shown... Figure 5 and Figure 6 After reaching the indicated position, continue moving away from the positioning seat 29. At this time, the vertical push plate 242 is blocked and flipped by the blocking block 243, causing the shaft 241 and the cover box 25 to flip 90 degrees. The shaft 241 passes the blocking block 243 and the other push plate 242 becomes vertical. The cover box 25 flips so that the inner panel 27 faces upward. The material feeding position of the upper cover of the inner panel 27 is level with the material discharge position at the bottom of the material box 51. The material box 51 extends and pushes the end cap, which pushes open the two grippers 31 and enters between them. Then, the two grippers 31 reset under the elastic force of the tension spring 32 and clamp the end cap. The control motor 232 drives the lead screw 233 to rotate in the opposite direction, which drives the bearing block 234 to move towards the positioning seat 29, thereby driving the cover box 25, the slider 26 and the inner plate 27 to close the cover. During this process, the vertical push plate 242 is blocked by the blocking block 243, which drives the shaft 241 and the cover box 25 to flip, so that the inner plate 27 faces the positioning seat 29. The inner plate 27 continues to move towards the pipe, causing the end cap to close on the pipe end, thus realizing automatic closing.

[0030] The positioning seat 29 is rotated by the motor 210, which can make each opening of the tee or bend face the inner plate 27 in turn, and cover each opening in turn. After all openings of the pipe are covered, the mechanical arm 22 grabs the pipe and places it on the conveyor belt of the automatic bagging station 13 for packaging.

[0031] Both the cover box 25 and the support block 234 are fixed with magnets 244. The magnetic force between the magnets 244 can make the cover box 25 stably connected to the support block 234 after it is flipped, so as to prevent the cover box 25 from shaking under the action of inertia and other external forces during operation, which would cause the end cover to fall off.

[0032] Reference Figures 10-13 Based on the above design, considering that the end caps are mostly made of plastic and the opening edges are prone to deformation, making it impossible to close the cap, an auxiliary mechanism 40 is installed on the gripper 31. The auxiliary mechanism 40 includes two side claws 41 fixed on the slider 26. The two side claws 41 are symmetrically arranged and aligned with the two grippers 31 respectively to avoid blocking the end cap from entering between the two grippers 31. A motor 3 42 is fixedly installed on the side claw 41. A connecting rod 43 is fixed on the output shaft of the motor 3 42. At the same time, one end of the connecting rod 43 fixed to the output shaft of the motor 3 42 is rotatably connected to the side claw 41, and the other end of the connecting rod 43 is rotatably connected to the lever 44. After the end cap enters between the two grippers 31, the motor 42 drives the connecting rod 43 and the lever 44 to rotate, causing the lever 44 to contact the opening of the end cap. Figure 13 As shown, at this time, the paddle 44 fixes the end cap to prevent the end cap from falling off when the inner plate 27 is flipped with the cover box 25, and also positions the end cap to improve the accuracy of the end cap position when the cover is fastened.

[0033] Furthermore, when the end cap opening deforms, the fitting and end cap are positioned as follows when the cap is fastened: Figure 13 When the end cap is in the position shown, the deformed end cap cannot be fastened to the pipe opening. If the end cap is fastened, it will be deflected by the rotating component 28 and rotate relative to the lever 44. At this time, with the support of the pipe, the lever 44 can open the concave edge of the end cap, restore the deformation of the end cap, and make the end cap fit onto the pipe opening. This design solves the problem that the end cap with deformed edge cannot be fastened to the pipe opening, avoids frequent interruptions in fastening due to the presence of deformed end cap, and ensures the efficiency of automated packaging of pipes.

[0034] Reference Figure 11 A limiting unit 45 is provided between the connecting rod 43 and the lever 44. A limiting groove is formed in the inner wall of the connecting rod 43. The limiting unit 45 includes a limiting block 451 fixed to one side of the lever 44 and embedded in the limiting groove. A torsion spring 452 is provided between the rotating connection of the connecting rod 43 and the lever 44. Figure 13In the indicated state, the paddle 44 cannot rotate counterclockwise, thus clamping and fixing the end cap. When the paddle 44 opens the end cap so that it is initially fitted onto the pipe opening, the motor 42 drives the connecting rod 43 to rotate counterclockwise. At this time, the paddle 44 can deflect clockwise so that the connecting rod 43 can pull the paddle 44 outward from between the pipe and the end cap. At the same time, during the cap fastening process, the paddle 44 can contact both sides of the pipe opening under the elastic force of the torsion spring 452, which plays a role in positioning the pipe.

[0035] After the cover is closed, the motor 42 drives the connecting rod 43 and the paddle 44 to deflect significantly, so that the paddle 44 is intersected with the end cover. When the inner plate 27 returns, the paddle 44 will not contact the end cover.

[0036] When a crack occurs after the end cap is fastened, motor 42 drives connecting rod 43 and paddle 44 to deflect towards the end cap. After contacting the tube body, paddle 44 deflects relative to connecting rod 43. The end of paddle 44 slides on the surface of the tube body and inserts between the tube body and the end cap. This design can pry up the end cap to facilitate the removal and replacement of the damaged end cap. Then, slide block 26 and inner plate 27 are driven by slide table 23 to move away from the tube, which drives side claw 41, connecting rod 43 and paddle 44 to move. The end cap is removed by paddle 44, which facilitates the replacement of the end cap.

[0037] Working principle: In the initial state, the inner panel 27 faces upward, and the material feeding position of the upper end cover of the inner panel 27 is level with the material discharge position at the bottom of the material box 51. The pipe fittings are conveyed by a double-speed chain, screened by the material testing station 11 and laser-marked by the laser marking station 12, and then picked up by the robotic arm 22 and placed in the positioning seat 29. The cylinder 52 extends and pushes the end cap protruding from the bottom of the material box 51, so that the end cap squeezes open the two grippers 31 and enters between the two grippers 31. The two grippers 31 clamp the end cap under the elastic force of the tension spring 32. The roller 33 is used to reduce the friction between the grippers 31 and the end cap when the end cap is closed, so as to prevent the end cap from falling off. The control motor 232 drives the lead screw 233 to rotate, which in turn drives the bearing block 234 to move in the direction of the pipe fitting. The bearing block 234 drives the shaft 241, push plate 242, cover box 25, slider 26 and inner plate 27 on it to move together. During the movement, the blocking block 243 blocks the vertical push plate 242, causing the push plate 242 to drive the shaft 241, cover box 25, slider 26 and inner plate 27 to flip in the direction of the pipe fitting. At this time, the end cap is aligned with the opening of the pipe fitting. The lead screw 233 continues to rotate, and the inner plate 27 drives the end cap to fasten onto the opening of the pipe fitting. When the vertical push plate 242 is blocked and flipped to the horizontal, the other push plate 242 flips to the vertical position. When the motor 232 drives the lead screw 233 to rotate in the opposite direction, causing the bearing block 234 to return, the blocking block 243 blocks the vertical push plate 242, causing the cover box 25 to flip and reset. Thus, the above operation process can be repeated to achieve automatic cover closing. When sharp burrs cause the cap to jam, the end cap is restricted from moving. When the cap is fastened, the inner plate 27 and the slider 26 cannot move forward to the expected position. At this time, the slide table 23 continues to drive the cap box 25 to move, the spring 281 is gradually compressed, the inner cylinder 282 gradually penetrates into the sleeve 283, and the protrusion 284 slides in the straight section of the slide groove. As the inner cylinder 282 continues to penetrate into the sleeve 283, the protrusion 284 enters the spiral section of the slide groove. With the cooperation of the protrusion 284 and the slide groove, the inner cylinder 282 deflects as it penetrates into the sleeve 283, which drives the inner plate 27 to deflect. This causes the end cap to rotate through the gripper 31 and the roller 33, so that the end cap and the tube body contact surface slide circumferentially. The shearing force is used to remove or avoid the burrs, release the end cap jamming, and continue to complete the cap fastening. When the end cap opening deforms, the fitting and end cap are positioned as follows when the cap is fastened: Figure 13 At the position shown, the deformed end cap cannot be fastened to the pipe opening. The pipe prevents the end cap from moving forward. The fastening box 25 and the slider 26 continue to move. The inner plate 27 will drive the end cap to deflect under the action of the rotating component 28, and rotate relative to the paddle 44. The paddle 44 will open the concave edge of the end cap, restore the deformation of the end cap, and make the end cap fit onto the pipe opening. Then, the motor 3 42 drives the connecting rod 43 to deflect in a direction away from the end cap. The paddle 44 is pulled out from between the pipe and the end cap. The fastening box 25 drives the slider 26 and the inner plate 27 to continue to move forward to achieve the fastening of the end cap. The positioning seat 29 is rotated by motor 210, so that each opening of the tee or bend faces the inner plate 27 in turn and the opening is covered. After all the openings of the pipe are covered, the pipe is picked up by robotic arm 22 and placed on the conveyor belt of automatic bagging station 13 for packaging. Finally, the packaging production is completed by labeling station 14.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. An automated packaging production line for pipe fittings, comprising an automatic capping station (20), characterized in that, The automatic cover-closing station (20) includes a rack cabinet (21), on which a robotic arm (22) is fixedly installed. The rack cabinet (21) is provided with a positioning seat (29) and a slide table (23). A cover-closing box (25) is installed on the slide table (23). A slider (26) is slidably connected inside the cover-closing box (25). An inner plate (27) is rotatably connected to one side of the slider (26). A clamping unit (30) is provided on the inner plate (27). The automatic lid-closing station (20) also includes a rotating assembly (28), which includes a spring (281) disposed between the slider (26) and the lid-closing box (25). The inner side of the inner plate (27) and the inner wall of the lid-closing box (25) are respectively fixed with an inner cylinder (282) and a sleeve (283). The sleeve (283) is sleeved on the outside of the inner cylinder (282), and the inner wall of the sleeve (283) is fixed with a protrusion (284) embedded in the groove of the inner cylinder (282). When the cap is stuck, the inner cylinder (282) goes deep into the sleeve (283) and deflects under the guidance of the protrusion (284), causing the end cap to rotate and lock through the inner plate (27).

2. The automated packaging production line for pipe fittings according to claim 1, characterized in that, The groove on the inner cylinder (282) is composed of straight sections and spiral sections connected end to end.

3. The automated packaging production line for pipe fittings according to claim 1, characterized in that, The slide (23) includes a limiting frame (231) and a motor (232) fixed on the rack cabinet (21). The limiting frame (231) has a bearing block (234) slidably connected inside. The output shaft of the motor (232) has a lead screw (233) that is threadedly connected to the bearing block (234).

4. The automated packaging production line for pipe fittings according to claim 3, characterized in that, The automatic cover-closing station (20) also includes a flipping structure (24), which includes a shaft (241) rotatably connected to the top of the support block (234) and fixed to the cover box (25). Two push plates (242) with a 90-degree angle are fixed at the end of the shaft (241). A blocking block (243) is fixed at the top of the limiting frame (231). Magnets (244) are fixed on both the cover box (25) and the support block (234).

5. The automated packaging production line for pipe fittings according to claim 1, characterized in that, The clamping unit (30) includes two symmetrical clamps (31) slidably connected to one side of the inner panel (27). A tension spring (32) is fixed between the clamps (31) and the inner panel (27). Rollers (33) are rotatably connected to the opposite sides of the two clamps (31).

6. The automated packaging production line for pipe fittings according to claim 5, characterized in that, An auxiliary mechanism (40) is installed on the gripper (31). The auxiliary mechanism (40) includes two side grippers (41) fixed on the slider (26). A motor (42) is fixedly installed on the side gripper (41). A connecting rod (43) is fixed on the output shaft of the motor (42). A lever (44) is rotatably connected to one end of the connecting rod (43).

7. The automated packaging production line for pipe fittings according to claim 6, characterized in that, The auxiliary mechanism (40) also includes a limiting unit (45), the inner wall of the connecting rod (43) is provided with a limiting groove, the limiting unit (45) includes a limiting block (451) fixed to one side of the paddle (44) and embedded in the limiting groove, and a torsion spring (452) is provided between the connecting rod (43) and the paddle (44).

8. The automated packaging production line for pipe fittings according to claim 1, characterized in that, It also includes a feeding assembly (50), which includes a material box (51) and a cylinder (52) fixed on the rack cabinet (21).

9. The automated packaging production line for pipe fittings according to claim 1, characterized in that, The rack cabinet (21) is fixedly installed with a motor (210) for driving the positioning seat (29) to rotate.

10. An automated packaging production line for pipe fittings according to claim 1, characterized in that, The system includes a material testing station (11), a laser marking station (12), an automatic bagging station (13), and a labeling station (14). The automatic capping station (20) is located between the laser marking station (12) and the automatic bagging station (13). A double-speed chain for conveying pipe fittings is provided between the material testing station (11) and the automatic capping station (20).

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