Pipe cutting production line

Abstract

A pipe cutting production line, comprising: a conveying line for conveying the pipe; a feeding mechanism connected with one end of the conveying line for feeding the pipe to the conveying line; a positioning assembly arranged on the conveying line for positioning the pipe on the conveying line; a cutting mechanism arranged on the conveying line for cutting the pipe when the pipe is conveyed to the positioning assembly; and a discharging mechanism connected with the other end of the conveying line for discharging the cut finished pipe from the conveying line. The feeding mechanism and the discharging mechanism realize automatic feeding and discharging of the pipe, so that the feeding and discharging of the pipe basically do not need manual intervention, the labor intensity of workers is reduced, and the demand for mass and continuous production is met. Before the pipe is cut, the positioning assembly precisely positions the pipe, so that the cutting precision of the pipe is ensured.

Description

Technical Field

[0001] This invention relates to the field of automated equipment for pipe processing, and in particular to a pipe cutting production line. Background Technology

[0002] Pipe cutting is a crucial step in the deep processing of pipes, widely used in building decoration, furniture manufacturing, automotive piping, petrochemicals, and other fields. Pipe cutting equipment is used to cut pipes, and the process generally involves loading, cutting, and unloading. The loading and unloading stages heavily rely on manual intervention, resulting in extremely high labor intensity for operators and making it difficult to meet the demands of large-scale, continuous production. Furthermore, the inability to accurately position the pipe before cutting leads to poor cutting precision and a deviation between the cut pipe length and the target length.

[0003] Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe cutting production line with a simple and reasonable structure, high production efficiency, precise positioning, good product quality, and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A pipe cutting production line designed for this purpose is characterized by comprising: A conveyor line for conveying pipes; A feeding mechanism is connected to one end of the conveyor line and is used to feed pipes onto the conveyor line; A positioning component, which is disposed on the conveyor line, is used to position the pipe on the conveyor line; A cutting mechanism is installed on the conveyor line. When the pipe is conveyed to the positioning component, the cutting mechanism performs a cutting operation on the pipe. The unloading mechanism is connected to the other end of the conveyor line, and the cut finished pipe leaves the conveyor line through the unloading mechanism.

[0006] The feeding mechanism includes a storage rack and a feeding device. The conveyor line includes a feeding conveyor frame. The feeding device is located between the storage rack and the feeding conveyor frame. It includes a first driver and a feeding arm. The feeding arm is rotatably mounted on the feeding conveyor frame. The storage rack is provided with a first support arm for placing pipes. The first support arm is connected to the feeding arm. When the pipes are fed, the first driver drives the feeding arm to swing upward to form a feeding ramp. The pipes on the storage rack slide into the feeding conveyor frame through the feeding ramp.

[0007] The first support arm is inclined vertically, and a stop block for blocking the pipe is provided at the lower end of the first support arm. A protrusion is provided at one end of the feeding arm, and a feeding position is formed between the stop block and the protrusion. The pipe slides down the inclined first support arm to the feeding position. When the feeding arm swings upward, it lifts the pipe at the feeding position so that the pipe moves above the stop block, and then the pipe slides into the feeding conveyor frame through the feeding ramp. A first baffle is provided at one end of the feeding arm; when the feeding arm swings upward, the first baffle blocks the pipe on the first support arm; when the first driver drives the feeding arm to swing downward to reset, the pipe on the first support arm slides downward to the feeding position.

[0008] A buffer arm is rotatably mounted on the feeding conveyor frame, and a linkage rod is fixedly mounted on the feeding arm. The linkage rod abuts against the buffer arm. When the feeding arm swings upward, it pushes the buffer arm to swing upward through the linkage rod. When the pipe slides into the feeding conveyor frame, it is limited and buffered on the buffer arm. The feeding conveyor is equipped with a feeding conveyor station; after the pipe slides into the feeding conveyor, the first driver drives the feeding lever arm to swing downwards to reset, so that the buffer lever arm swings downwards to reset synchronously, thereby causing the pipe to fall into the conveyor station; The feeding conveyor frame is equipped with limit guide wheels on both sides, and the conveying station is set between the two limit guide wheels. After the pipe falls into the conveying station, it is conveyed forward along the limit guide wheels. The limiting guide wheel includes a first limiting guide wheel and a second limiting guide wheel. The first limiting guide wheel is close to the first support arm, and the second limiting guide wheel is far away from the first support arm. The height of the second limiting guide wheel is higher than the height of the first limiting guide wheel. The feeding conveyor is equipped with a heightening block, and a material-stopping column is installed on the heightening block. The material-stopping column is located above the second limit guide wheel.

[0009] The cutting mechanism includes a first cutting device and a second cutting device. When the pipe is transported to the positioning component, the first cutting device and the second cutting device perform cutting operations on the pipe. The position of the second cutting device is fixed and cannot be adjusted. The positions of the first cutting device and the positioning component are respectively movable and adjustable relative to the second cutting device, thereby adjusting the cutting length of the pipe. The conveyor line includes a first intermediate conveyor assembly, which is connected to the feeding conveyor frame. The first intermediate conveyor assembly, the first cutting device, and the positioning assembly are located on both sides of the second cutting device. The first intermediate conveyor assembly can move and adjust synchronously with the first cutting device, and the position of the first intermediate conveyor assembly relative to the first cutting device can be moved and adjusted. It also includes a fixed base, a first cutting device and a first intermediate conveying component are slidably disposed on the fixed base, a second cutting device is fixedly disposed on the fixed base, a first adjusting component is disposed on the fixed base, the first cutting device is mounted on the first adjusting component, and when the first adjusting component is adjusted, it drives the first cutting device to slide on the fixed base, thereby adjusting the position of the first cutting device relative to the second cutting device. The first adjustment assembly includes a first handwheel, a first screw, and a first nut. The first screw is rotatably mounted on a fixed base, the first handwheel is fixed to the end of the first screw, the first nut is slidably mounted on the first screw, and the first cutting device is fixedly connected to the first nut. The first cutting device is provided with a sliding bracket at the bottom, and a first roller is provided at the bottom of the sliding bracket. A first guide rail is provided on the fixed base. The first cutting device is slidably mounted on the first guide rail via the first roller. The first intermediate conveying component is provided with a second roller at the bottom, and a second guide rail is provided on the fixed base. The first intermediate conveying component is slidably mounted on the second guide rail via the second roller. The sliding bracket is provided with an insert bar, and the first intermediate conveying component is provided with a sleeve. The insert bar is inserted into the sleeve. A locking part is provided between the insert bar and the sleeve. The insert bar and the sleeve are locked or unlocked by the locking part. When the insert bar and the sleeve are locked, the first intermediate conveying component can move and adjust synchronously with the first cutting device. When the insert bar and the sleeve are unlocked, the insert bar can slide on the sleeve, and the position of the first intermediate conveying component relative to the first cutting device can be moved and adjusted.

[0010] The conveyor line includes a feeding conveyor frame, on which a second adjustment component is provided. A positioning component is installed on the second adjustment component. When the second adjustment component is adjusted, it drives the positioning component to slide on the feeding conveyor frame, thereby adjusting the position of the positioning component relative to the second cutting device. The second adjustment assembly includes a second handwheel, a second screw, a second nut, and a mounting plate. The second screw is rotatably mounted on the unloading conveyor frame, the second handwheel is fixed to the end of the second screw, the second nut is slidably mounted on the second screw, and the mounting plate is fixedly connected to the second nut. The positioning assembly includes a movable positioning seat, a second driver, and a baffle plate. The movable positioning seat is fixed on the mounting plate, the second driver is fixed on the movable positioning seat, and the second driver drives the baffle plate to move up and down. When the pipe is conveyed to the positioning assembly, the baffle plate moves downward to block the pipe from being conveyed forward. The mobile positioning base is equipped with a first detection component, which includes a first mounting frame and a first detection probe mounted on the first mounting frame. When the pipe is conveyed to the positioning component, it acts on the first detection probe to stop the conveyor line from conveying the pipe. The conveyor line includes a second intermediate conveyor assembly, which is located between the first intermediate conveyor assembly and the unloading conveyor frame, and is close to the second cutting device. The second intermediate conveyor assembly is slidably mounted on a fixed base, thereby adjusting the position of the second intermediate conveyor assembly relative to the second cutting device.

[0011] The unloading mechanism includes an unloading frame and an unloading device. The unloading device is located between the unloading conveyor and the unloading frame. It includes a third driver and an unloading lever arm. The third driver drives the unloading lever arm, which is rotatably mounted on the unloading conveyor. When the pipe is unloaded, the third driver drives the unloading lever arm to swing forward to form an unloading ramp on the unloading lever arm. The unloading lever arm is connected to the unloading frame, and the finished pipe on the unloading conveyor slides into the unloading frame through the unloading ramp.

[0012] The unloading lever arm is equipped with a first arm body. When the third driver drives the unloading lever arm to swing forward, the first arm body tilts downward, thereby forming a unloading slope on the first arm body. The unloading rack is equipped with several second support arms for supporting the finished pipes. The second support arms are inclined downwards. When the first arm is inclined downwards, it connects with the second support arm. The finished pipes on the unloading conveyor rack slide down the unloading slope onto the second support arm. The unloading lever also includes a second arm and a third arm. The third driver drives the connection of the third arm. The first arm, the second arm, and the third arm together form a U-shape. The rotation fulcrum of the unloading lever is located between the first arm and the second arm. The unloading arm includes a driving arm and several driven arms. The driving arm and driven arms are arranged along the length of the pipe. A third driver drives and connects to the driving arm. The driving arm is connected to the driven arm through a first transmission shaft.

[0013] The feeding conveyor is equipped with third limit guide wheels on both sides, and the finished pipe on the feeding conveyor is limited between the two third limit guide wheels; when the third driver drives the feeding arm to swing forward, the feeding arm lifts the finished pipe on the feeding conveyor upward so that the finished pipe moves above the third limit guide wheel. The second support arm is provided with a second baffle at one end near the feeding conveyor frame. The second baffle blocks the finished pipe on the feeding conveyor frame. When the third driver drives the feeding arm to swing forward, the feeding arm lifts the finished pipe on the feeding conveyor frame upward so that the finished pipe moves above the baffle. The unloading rack is equipped with a limiting part, which is located at the end of the second support arm away from the unloading conveyor. When the finished pipe on the unloading conveyor slides down onto the second support arm, the limiting part is located on the limiting part.

[0014] The pipe cutting production line of the present invention is equipped with a conveyor line, a feeding mechanism, a positioning component, a cutting mechanism, and a unloading mechanism. The feeding and unloading mechanisms realize the automatic loading and unloading of pipes, so that the loading and unloading of pipes basically does not require manual intervention, reducing the labor intensity of workers and meeting the needs of large-scale and continuous production. In addition, before the pipe is cut, the positioning component accurately positions the pipe, which can ensure the cutting accuracy of the pipe, so that the length of the cut pipe is basically consistent with the target length. Attached Figure Description

[0015] Figure 1 This is a top view of a cutting production line according to an embodiment of the present invention.

[0016] Figure 2 This is a top view of the feeding mechanism and the feeding conveyor frame in one embodiment of the present invention.

[0017] Figure 3 This is a front view of the feeding mechanism and the feeding conveyor frame in one embodiment of the present invention.

[0018] Figure 4 This is a front view of the cutting mechanism, conveyor line, and unloading mechanism in one embodiment of the present invention.

[0019] Figure 5 This is a top view of the cutting mechanism, conveyor line, and unloading mechanism in one embodiment of the present invention.

[0020] Figure 6 This is a cross-sectional view of the feeding mechanism and the feeding conveyor frame in one embodiment of the present invention.

[0021] Figure 7 This is a cross-sectional view of the feeding device and the feeding conveyor frame in one embodiment of the present invention.

[0022] Figure 8 This is a cross-sectional view of the feeding conveyor frame in one embodiment of the present invention.

[0023] Figure 9 This is a top view of the feeding device in one embodiment of the present invention.

[0024] Figure 10 This is a cross-sectional view of the feeding device in one embodiment of the present invention.

[0025] Figure 11 This is a front view of the feeding device after the feeding arm rotates downward in one embodiment of the present invention.

[0026] Figure 12 This is a front view of the feeding device after the feeding arm rotates upward in one embodiment of the present invention.

[0027] Figure 13 This is a partial structural cross-sectional view of the feeding device and feeding conveyor frame in one embodiment of the present invention.

[0028] Figure 14 This is a front view of the heightened stop block in one embodiment of the present invention.

[0029] Figure 15 This is a schematic diagram of the feeding arm and the buffer arm swinging upwards in one embodiment of the present invention.

[0030] Figure 16 This is a front view of a storage rack in one embodiment of the present invention.

[0031] Figure 17 This is a top view of the fixed base in one embodiment of the present invention.

[0032] Figure 18 This is a cross-sectional view of the first intermediate conveying component in one embodiment of the present invention.

[0033] Figure 19 This is a front view of the first intermediate conveying component in one embodiment of the present invention.

[0034] Figure 20 This is a top view of the sliding bracket in one embodiment of the present invention.

[0035] Figure 21 This is a cross-sectional view of the second intermediate conveying component in one embodiment of the present invention.

[0036] Figure 22 This is a cross-sectional view of the assembly structure of the feeding conveyor and positioning assembly in one embodiment of the present invention.

[0037] Figure 23 This is a top view of the second adjustment component in one embodiment of the present invention.

[0038] Figure 24 This is a cross-sectional view of the assembly structure of the unloading conveyor and positioning component from another position in one embodiment of the present invention.

[0039] Figure 25 This is a cross-sectional view of the first mounting bracket in one embodiment of the present invention.

[0040] Figure 26 for Figure 4 A magnified structural diagram of point A in the middle.

[0041] Figure 27 for Figure 5 A magnified structural diagram at point B in the middle.

[0042] Figure 28 This is a top view of the first mounting bracket in one embodiment of the present invention.

[0043] Figure 29 This is a cross-sectional view of the feeding mechanism and the feeding conveyor frame in one embodiment of the present invention.

[0044] Figure 30 This is a cross-sectional view of the feeding device and the feeding conveyor frame in one embodiment of the present invention.

[0045] Figure 31 This is a front view of the feeding device in one embodiment of the present invention.

[0046] Figure 32 This is a schematic diagram of the structure after the feeding lever arm swings forward in one embodiment of the present invention.

[0047] Figure 33 This is a top view of the feeding device in one embodiment of the present invention.

[0048] Figure 34 This is a partial structural cross-sectional view of the feeding device and feeding conveyor frame in one embodiment of the present invention.

[0049] Figure 35 This is a rear view of the unloading rack in one embodiment of the present invention. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0051] See Figures 1-35 This pipe cutting production line includes: Conveyor line a, conveyor line a is used to transport pipes; Feeding mechanism b is connected to one end of conveyor line a and is used to feed pipes onto conveyor line a. Positioning component c, which is set on conveyor line a, is used to position the pipe on conveyor line a; Cutting mechanism d is set on conveyor line a. When the pipe is conveyed to positioning component c, cutting mechanism d performs cutting operation on the pipe. The unloading mechanism e is connected to the other end of the conveyor line a. The cut finished pipe leaves the conveyor line a through the unloading mechanism e.

[0052] The feeding mechanism b includes a storage rack 1 and a feeding device 2. The conveyor line a includes a feeding conveyor frame 3. The feeding device 2 is located between the storage rack 1 and the feeding conveyor frame 3. It includes a first driver 4 and a feeding arm 5. The feeding arm 5 is rotatably mounted on the feeding conveyor frame 3. The storage rack 1 is provided with a first support arm 6 for placing pipes. The first support arm 6 is connected to the feeding arm 5. When the pipes are fed, the first driver 4 drives the feeding arm 5 to swing upward to form a feeding ramp 7. The pipes on the storage rack 1 slide into the feeding conveyor frame 3 through the feeding ramp 7.

[0053] The first support arm 6 is inclined vertically. A stop block 8 for blocking the pipe is located at the lower end of the first support arm 6. A protrusion 9 is located at one end of the feeding arm 5. The lower end of the first support arm 6 and one end of the feeding arm 5 overlap in the left-right direction, forming a feeding position 10 between the stop block 8 and the protrusion 9. The pipe at the lowermost end of the first support arm 6 slides downwards along the inclined first support arm 6 to the feeding position 10 (the pipe passes over the protrusion 9 and enters the feeding position 10 as it slides downwards) and is then stuck in the feeding position 10. The stop block 8 can block the pipe. As the tube continues to slide downwards, its bottom is simultaneously supported by the first support arm 6 and the feeding arm 5. When the feeding arm 5 swings upwards, it lifts the tube on the feeding position 10, allowing the tube to move above the stop block 8. At this point, the tube is removed from the block 8 and slides onto the feeding conveyor frame 3 via the feeding ramp 7. This structure uses only a swing arm and a drive source, combined with gravity, to achieve tube feeding. The structure is relatively simple, significantly reducing manufacturing costs and thus greatly reducing the cost of the entire feeding mechanism b.

[0054] The feeding arm 5 is provided with a first baffle 11 at one end. When the feeding arm 5 swings upward, the first baffle 11 blocks the pipe on the first support arm 6 to prevent the pipe on the first support arm 6 from sliding down out of the support arm 6. When the first driver 4 drives the feeding arm 5 to swing downward to reset, the pipe at the bottom of the support arm 6 slides down to the feeding position 10. Then the first driver 4 drives the feeding arm 5 to swing upward again, so that the pipe on the feeding position 10 slides down into the feeding conveyor 3. Then the first driver 4 drives the feeding arm 5 to swing downward to reset, and so on for feeding.

[0055] The feeding conveyor frame 3 is equipped with a first positioning plate 58, and the other end of the feeding arm 5 is rotatably mounted on the first positioning plate 58 via a first pin 59.

[0056] A buffer arm 12 is rotatably mounted on the feeding conveyor frame 3, and a linkage rod 13 is fixedly mounted on the feeding arm 5. The top of the linkage rod 13 abuts against the bottom of the buffer arm 12. When the feeding arm 5 swings upward, it pushes the buffer arm 12 upward through the linkage rod 13. When the pipe slides into the feeding conveyor frame 3, it is limited and buffered on the buffer arm 12 to prevent the pipe from rushing out of the feeding conveyor frame 3 due to excessive speed when sliding downward. Figure 15 As shown, after the feeding arm 5 and the buffer arm 12 swing upward in sync, the feeding arm 5 and the buffer arm 12 form a cross shape. Both the feeding arm 5 and the buffer arm 12 are inclined up and down, and an obstructing slope 60 is formed on the buffer arm 12. The obstructing slope 60 will prevent the pipe from rushing out of the feeding conveyor 3. When the feeding arm 5 swings downward, the buffer arm 12 swings downward and resets under the action of gravity.

[0057] A second positioning plate 61 is provided on the feeding conveyor frame 1, and one end of the buffer arm 12 is rotatably mounted on the second positioning plate 62 via the second pin 62.

[0058] Multiple feeding arms 5 are provided. The first driver 4 drives and connects to one of the feeding arms 5, and one of the feeding arms 5 is connected to the other feeding arms 5 through the second transmission shaft 63.

[0059] The feeding conveyor frame 3 is equipped with a feeding conveyor station 14; after the pipe slides into the feeding conveyor frame 3, the first driver 4 drives the feeding arm 5 to swing downward and reset, so that the buffer arm 12 swings downward and resets synchronously, thereby causing the pipe to fall into the conveyor station 14. The feeding conveyor frame 3 is equipped with limit guide wheels on both sides. The conveying station 14 is located between the two limit guide wheels. After the pipe falls into the conveying station 14, it is conveyed forward along the limit guide wheels. The limit guide wheels can prevent the pipe from deviating to the left or right and falling out of the feeding conveyor frame 3 when it is conveyed forward.

[0060] The limiting guide wheel includes a first limiting guide wheel 44 and a second limiting guide wheel 45. The first limiting guide wheel 44 is close to the first support arm 6, and the second limiting guide wheel 45 is far away from the first support arm 6. The height of the second limiting guide wheel 45 is higher than the height of the first limiting guide wheel 44. The feeding conveyor 3 is equipped with a heightening block 46, and a baffle post 47 is provided on the heightening block 46. The baffle post 47 is located above the second limiting guide wheel 45. The second limiting guide wheel 45 is relatively high, and together with the heightening block 46, when the pipe slides down into the feeding conveyor 3, even if it rushes out of the obstructing slope 60 due to excessive speed, it will be blocked by the second limiting guide wheel 45 and the baffle post 47, further preventing the pipe from rushing out of the feeding conveyor 3.

[0061] The feeding conveyor 3 is provided with a first positioning shaft 64 on one side and a second positioning shaft 65 on the other side. The first limiting guide wheel 44 is rotatably mounted on the first positioning shaft 64, and the second limiting guide wheel 45 is rotatably mounted on the second positioning shaft 65. In this embodiment, the conveying station 14 can accommodate two pipes. After each pair of pipes is conveyed to the conveying station 14 by the storage rack 2, the feeding conveyor 3 starts to convey the two pipes forward. When each pipe is conveyed forward, it rolls and rubs against the corresponding limiting guide wheel.

[0062] The first driver 4 is a cylinder, which includes a first cylinder body 19 and a first piston rod 67 telescopically mounted on the first cylinder body 66. A first positioning seat assembly 68 is provided on the feeding conveyor frame 1. The first cylinder body 66 is rotatably mounted on the positioning seat assembly 68, and the first piston rod 67 is rotatably connected to the feeding lever arm 5.

[0063] The first positioning seat assembly 68 includes a first positioning seat 69 and a third positioning plate 70. The first positioning seat 69 is fixed on the feeding conveyor frame 3. The third positioning plate 70 is fixed on the first positioning seat 69 by screws. The first cylinder 66 is rotatably mounted on the third positioning plate 70 by a third pin 71. A connecting seat 72 is provided at one end of the feeding lever arm 5. The end of the first piston rod 67 is rotatably connected to the connecting seat 72 by a fourth pin 73.

[0064] One or more storage racks 1 are provided. In this embodiment, multiple storage racks 1 are provided. Multiple storage racks 1 are provided on one side of the feeding conveyor 3. Since the pipe is long, multiple storage racks 1 are used to support the pipe. The storage rack 1 includes a frame 74 and a first support arm 6 installed on the top of the frame 74. The pipe length (uncut) is 1.5 meters to 12 meters and the diameter is 50 mm to 250 mm. The material of the pipe is seamless steel pipe, round steel, and other round steel materials.

[0065] A first conveying device is provided on the feeding conveyor frame 3. The first conveying device includes a first motor 75, a first sprocket and chain assembly 76, and a first roller assembly 77. The first motor 75 drives and connects to the first sprocket and chain assembly 76, which in turn drives and connects to the first roller assembly 77. Multiple first roller assemblies 77 are provided and distributed front and back on the feeding conveyor frame 3. After the pipe falls into the conveying station 14, its bottom is supported on the first roller assembly 77. The first motor 75 drives the first roller assembly 77 to rotate on the feeding conveyor frame 3 through the first sprocket and chain assembly 76. When the first roller assembly 77 rotates, it drives the pipe to be conveyed forward. The conveying device is existing technology and will not be described in detail here.

[0066] The cutting mechanism d includes a first cutting device 15 and a second cutting device 16. When the pipe is conveyed to the positioning component c, the first cutting device 15 and the second cutting device 16 perform cutting operations on the pipe. The position of the second cutting device 16 is fixed and cannot be adjusted. The positions of the first cutting device 15 and the positioning component c relative to the second cutting device 16 are movable and adjustable, thereby adjusting the cutting length of the pipe. The distance between the first cutting device 15 and the second cutting device 16, and the distance between the second cutting device 16 and the positioning component c, represent the cutting length of the pipe. Adjusting the positions of the first cutting device 15 and the positioning component c relative to the second cutting device 16 adjusts these two distances. Generally, the upper... The two distances are equal, meaning the cut pipe lengths are all the same. Furthermore, conveyor line a uses a dual-station design, allowing two pipes to be conveyed in one feeding. Combined with the first cutting device 15 and the second cutting device 16, four pipe sections can be cut in one feeding, significantly improving production efficiency and meeting the needs of mass production. The finished pipe length ranges from 1.4 meters to 3 meters. Additionally, the second cutting device 16 is fixed as a reference, while the first cutting device 15 and the positioning component c are movable and adjustable. Adjusting their relative positions changes the length of the finished pipe, enabling flexible production changes without requiring a complete replacement or reassembly of the cutting device. This reduces operational difficulty and eliminates the need to recalibrate the relative positions of the cutting devices.

[0067] The conveyor line a includes a first intermediate conveyor assembly 17, which is connected to the feeding conveyor frame 3. The first intermediate conveyor assembly 17, the first cutting device 15, and the positioning assembly c are located on the front and rear sides of the second cutting device 16, respectively. The first intermediate conveyor assembly 17 can move and adjust synchronously with the first cutting device 1, and the position of the first intermediate conveyor assembly 17 relative to the first cutting device 15 can be moved and adjusted. That is, the distance between the first intermediate conveyor assembly 17 and the first cutting device 15 can be adjusted to adapt to different uncut pipe lengths.

[0068] It also includes a fixed base 18, a first cutting device 15 and a first intermediate conveying assembly 17 that are slidably disposed on the fixed base 18, a second cutting device 16 that is fixedly disposed on the fixed base 18, a first adjusting assembly that is disposed on the fixed base 18, the first cutting device 15 that is mounted on the first adjusting assembly, and the first adjusting assembly that drives the first cutting device 15 to slide back and forth on the fixed base 18 when adjusting, thereby adjusting the position of the first cutting device 15 relative to the second cutting device 16; The first adjustment assembly includes a first handwheel 19, a first screw 20, and a first nut 21. The first screw 20 is rotatably mounted on the fixed base 18. The first handwheel 19 is fixed to the end of the first screw 20. The first nut 21 is slidably disposed on the first screw 20. The first cutting device 15 is fixedly connected to the first nut 21. Rotating the first handwheel 19 causes the first screw 20 to rotate, thereby causing the first nut 21 to slide back and forth. The first nut 21 drives the first cutting device 15 to move back and forth, thereby adjusting the position of the first cutting device 15 relative to the second cutting device 16.

[0069] The fixed base 18 is provided with a fixed plate 78 distributed in the front and back. The fixed plate 78 is fixedly provided with a bearing. The front and rear ends of the first screw 20 are respectively mounted on the corresponding bearings so that the first screw 20 is rotatably mounted on the fixed plate 78.

[0070] The first cutting device 15 has a sliding bracket 22 at its bottom, and a first roller 23 at its bottom. A first guide rail 24 is provided on the fixed base 18. The first cutting device 15 is slidably mounted on the first guide rail 24 via the first roller 23. The first intermediate conveying component 17 has a second roller 25 at its bottom, and a second guide rail 26 is provided on the fixed base 18. The first intermediate conveying component 17 is slidably mounted on the second guide rail 26 via the second roller 25. The first guide rail 24 is located outside the second guide rail 26.

[0071] A first indicator plate 79 is provided on the sliding bracket 22, and a first indicator head 80 is provided on the first indicator plate 79. A first scale 81 is provided on the fixed base 18. When the first cutting device 15 is adjusted, the first indicator head 80 indicates the scale on the first scale 81, thereby realizing the precise adjustment of the position of the first cutting device 15.

[0072] A strip 27 is provided on the sliding bracket 22, and a sleeve 28 is provided on the first intermediate conveying component 17. The strip 27 is inserted into the sleeve 28. A locking part is provided between the strip 27 and the sleeve 28. The strip 27 and the sleeve 28 are locked or unlocked by the locking part. When the strip 27 and the sleeve 28 are locked, the first intermediate conveying component 17 can move and adjust synchronously with the first cutting device 15. When the strip 27 and the sleeve 28 are unlocked, the strip 27 can slide on the sleeve 28. The position of the first intermediate conveying component 17 relative to the first cutting device 15 can be moved and adjusted.

[0073] The locking part includes a first fixing hole on the sleeve 28, a second fixing hole on the insert 27, and a fastener 82. The fastener 82 passes through the first fixing hole and is fastened to the second fixing hole so that the insert 27 and the sleeve 28 are locked together. When the fastener 82 is removed, the insert 27 and the sleeve 28 are unlocked. The fastener 82 is a screw, and the first fixing hole and the second fixing hole are screw holes.

[0074] The first intermediate conveying assembly 17 includes a first upper frame 83 and a first lower frame 84. The pipe is conveyed on the first upper frame 83. A second roller 23 is disposed at the bottom of the first lower frame 84. A sleeve 28 is disposed on the first lower frame 84. A first connecting adjustment assembly is disposed between the first upper frame 83 and the first lower frame 84. The first connecting adjustment assembly includes a first adjusting screw 85, a first connecting nut 86, and a second connecting nut 87. A first mounting hole is provided on the first upper frame 83, and a second mounting hole is provided on the first lower frame 84. The first adjusting screw 85... Simultaneously passing through the first mounting hole and the second mounting hole, the first connecting nut 86 is threadedly engaged with the first adjusting screw 85, and the first connecting nut 86 is locked on the upper and lower sides of the first mounting hole. The second connecting nut 87 is threadedly engaged with the first adjusting screw 85, and the second connecting nut 87 is locked on the upper and lower sides of the second mounting hole, thereby connecting the first upper frame 83 and the first lower frame 84. By adjusting the upper and lower positions of the first connecting nut 86 and the first adjusting screw 85, the upper and lower positions of the first upper frame 83 are adjusted, thereby adjusting the height of the first intermediate conveying assembly 17.

[0075] The conveyor line a includes a feeding conveyor frame 29, on which a second adjustment component is provided. A positioning component c is installed on the second adjustment component. When the second adjustment component is adjusted, it drives the positioning component c to slide back and forth on the feeding conveyor frame 29, thereby adjusting the position of the positioning component c relative to the second cutting device 16. The second adjustment assembly includes a second handwheel 30, a second screw 31, a second nut 32, and a mounting plate 33. The second screw 31 is rotatably mounted on the unloading conveyor frame 29. The second handwheel 30 is fixed to the end of the second screw 31. The second nut 32 is slidably mounted on the second screw 31. The mounting plate 33 is fixedly connected to the second nut 32. Rotating the second handwheel 30 causes the second screw 31 to rotate, which in turn causes the second nut 32 to slide back and forth. The second nut 32 drives the positioning assembly c to move back and forth through the mounting plate 33, thereby adjusting the position of the positioning assembly c relative to the second cutting device 16.

[0076] A fixed frame 88 is fixedly installed on the unloading conveyor frame 16. The second screw 31 includes a driving screw 89 and a driven screw 90. The second nut 32 includes a driving nut 91 and a driven nut 92. The driving screw 89 is rotatably mounted on one side of the fixed frame 88, and the driven screw 90 is rotatably mounted on the other side of the fixed frame 88. The driving nut 91 is slidably mounted on the driving screw 89, and the driven nut 92 is slidably mounted on the driven screw 90. The two ends of the mounting plate 33 are respectively connected to the driving nut 91 and the driven nut 92. A transmission assembly is provided between the driving screw 89 and the driven screw 90. The transmission assembly includes a driving sprocket 93, a chain 94, and a driven sprocket 95. A second handwheel is also included. The drive sprocket 90 is fixed at one end of the drive screw 89, and the drive sprocket 93 is fixed at the other end of the drive screw 89. The drive sprocket 93 and the driven sprocket 95 are connected by a chain 94. One end of the driven screw 90 is connected to the driven sprocket 95. The second handwheel 30 is rotated so that the second handwheel 30 drives the drive screw 89 to rotate, thereby causing the drive nut 91 to slide back and forth. The drive screw 89 drives the driven screw 90 to rotate through the transmission assembly, thereby causing the driven nut 92 to slide back and forth. The drive nut 91 and the driven nut 92 drive the mounting plate 33 to move back and forth, thereby causing the mounting plate 33 to move the positioning component c back and forth. The movement of the positioning component c is more stable through the transmission of the double screw.

[0077] Bearings are provided at the front and rear ends of one side of the fixed frame 88, and the front and rear ends of the driving screw 89 are respectively mounted on the corresponding bearings so that the driving screw 89 can be rotatably mounted on the fixed frame 88; bearings are provided at the front and rear ends of the other side of the fixed frame 88, and the front and rear ends of the driven screw 90 are respectively mounted on the corresponding bearings so that the driven screw 90 can be rotatably mounted on the fixed frame 88.

[0078] The positioning component c includes a movable positioning seat 34, a second driver 35, and a baffle plate 36. The movable positioning seat 34 is fixed on the mounting plate 33, and the second driver 35 is fixed on the movable positioning seat 34. The second driver 35 drives the baffle plate 36 to move up and down. The second driver 35 is a cylinder. When the pipe is conveyed to the positioning component 3, the baffle plate 36 moves downward to block the pipe from being conveyed forward and to position the pipe. After the pipe is positioned, the first cutting device 15 and the second cutting device 16 can be started to cut the pipe.

[0079] The bottom of the movable positioning seat 34 is provided with a slider 96, and the fixed frame 88 is provided with a third guide rail 97. The movable positioning seat 34 is slidably mounted on the third guide rail 97 by the slider 96.

[0080] The movable positioning seat 21 is provided with a second indicator plate 98, the second indicator plate 98 is provided with a second indicator head 99, and the unloading conveyor frame 29 is provided with a second scale 100. When the positioning component c is adjusted, the second indicator head 99 indicates the scale on the second scale 100, thereby realizing the precise adjustment of the position of the positioning component c.

[0081] A first detection component is provided on the movable positioning base 34. The first detection component includes a first mounting frame 37 and a first detection probe (not shown in the figure) mounted on the first mounting frame 37. When the pipe is conveyed to the positioning component c, it acts on the first detection probe to stop the conveyor line a from conveying the pipe. A control device is provided on the conveyor line a. The control device includes a control circuit board. The control circuit board is electrically connected to the first detection probe. When the pipe is conveyed to the positioning component c, the first detection probe detects that the pipe is in place and sends a position signal to the control circuit board. Then, the control circuit board controls the motors (first motor 75, second motor 110, third motor 113, and fourth motor 116) on the conveyor line a to stop working, thereby stopping the conveyor line a from conveying the pipe.

[0082] The first mounting bracket 24 includes a mounting vertical plate 101, a mounting horizontal plate 102, and a probe mounting plate 103. The mounting vertical plate 101 is fixed to the rear side of the movable positioning seat 34 by screws. The mounting horizontal plate 102 is welded to the bottom of the mounting vertical plate 101. The probe mounting plate 103 is fixed to the front and rear ends of the mounting horizontal plate 102 by screws. The first detection probe is mounted on the probe mounting plate 103.

[0083] Conveyor line a includes a second intermediate conveyor assembly 38, which is located between the first intermediate conveyor assembly 17 and the unloading conveyor frame 29, and is close to the second cutting device 16. The second intermediate conveyor assembly 38 is slidably mounted on the fixed base 18, thereby adjusting the position of the second intermediate conveyor assembly 38 relative to the second cutting device 16, that is, the distance between the second intermediate conveyor assembly 38 and the second cutting device 16 can be adjusted; the unloading conveyor frame 29, the second cutting device 16, the second intermediate conveyor assembly 38, the first cutting device 15 and the first intermediate conveyor assembly 17 are arranged sequentially front to back.

[0084] The second intermediate conveying component 38 is provided with a third roller 104 at its bottom, and the second intermediate conveying component 38 is slidably mounted on the second guide rail 26 via the third roller 104.

[0085] The second intermediate conveying assembly 38 includes a second upper frame 105 and a second lower frame 106. The pipe is conveyed on the second upper frame 105, and the third roller 106 is located at the bottom of the second lower frame 106. The second intermediate conveying assembly 38 has the same structure as the first intermediate conveying assembly 17, except that the length is different, which will not be described in detail here.

[0086] The first cutting device 15 and the second cutting device 16 are existing saws. When the pipe is conveyed to the positioning component c, the baffle plate 36 moves downward to block the pipe from being conveyed forward. The two saws automatically clamp the pipe, and then the saws cut the pipe with the saw blade. After the pipe is cut, the saws automatically release the pipe, and the baffle plate 36 moves upward to release the obstruction of the pipe. Then the conveyor line a continues to convey the pipe forward to the unloading mechanism.

[0087] The first upper frame 83 is provided with two first intermediate conveying stations 107, the second upper frame 105 is provided with two second intermediate conveying stations 108, and the unloading conveying frame 29 is provided with two unloading conveying stations 109. The loading conveying station 14, the first intermediate conveying station 107, the second intermediate conveying station 108 and the unloading conveying station 109 are set up accordingly. After the pipe is loaded to the conveying line a by the loading mechanism b, it is conveyed from the loading conveying station 14, then passes through the first intermediate conveying station 107 and the second intermediate conveying station 108 in sequence, and then reaches the unloading conveying station 109. Finally, it is unloaded by the unloading mechanism e.

[0088] A second conveying device is provided on the first upper frame 83. The second conveying device includes a second motor 110, a second sprocket and chain assembly 111, and a second roller assembly 112. The second motor 110 drives the second sprocket and chain assembly 111, which in turn drives the second roller assembly 112. Multiple second roller assemblies 112 are provided and distributed front and back on the first upper frame 83. The bottom of the pipe is supported on the second roller assembly 112. The second motor 110 drives the second roller assembly 112 to rotate on the first upper frame 83 through the second sprocket and chain assembly 111. When the second roller assembly 112 rotates, it drives the pipe to be conveyed forward. The conveying device is prior art and will not be described in detail here.

[0089] A third conveying device is provided on the second upper frame 105. The third conveying device includes a third motor 113, a third sprocket and chain assembly 114, and a third roller assembly 115. The third motor 113 drives and connects to the third sprocket and chain assembly 114, which in turn drives and connects to the third roller assembly 115. Multiple third roller assemblies 115 are provided and distributed front and back on the second upper frame 105. The bottom of the pipe is supported on the third roller assembly 115. The third motor 113 drives the third roller assembly 115 to rotate on the second upper frame 105 through the third sprocket and chain assembly 114. When the third roller assembly 115 rotates, it drives the pipe to be conveyed forward. The conveying device is prior art and will not be described in detail here.

[0090] A fourth conveying device is provided on the unloading conveyor frame 29. The fourth conveying device includes a fourth motor 116, a fourth sprocket and chain assembly 117, and a fourth roller assembly 118. The fourth motor 116 drives the fourth sprocket and chain assembly 117, which in turn drives the fourth roller assembly 118. Multiple fourth roller assemblies 118 are provided and distributed front and back on the unloading conveyor frame 29. The bottom of the pipe is supported on the fourth roller assembly 118. The fourth motor 116 drives the fourth roller assembly 118 to rotate on the unloading conveyor frame 29 through the fourth sprocket and chain assembly 117. When the fourth roller assembly 118 rotates, it drives the pipe to be conveyed forward. The conveying device is prior art and will not be described in detail here.

[0091] The control circuit board is electrically connected to the first motor 75, the second motor 110, the third motor 113, the fourth motor 116, the first driver 4, the second driver 35, and the third driver 41, respectively.

[0092] The unloading mechanism e includes an unloading frame 39 and an unloading device 40. The unloading device 40 is located between the unloading conveyor frame 29 and the unloading frame 39. It includes a third driver 41 and an unloading arm 42. The third driver 41 drives the unloading arm 42, which is rotatably mounted on the unloading conveyor frame 29. When the pipe is unloaded, the third driver 41 drives the unloading arm 42 to swing forward, so as to form an unloading ramp 43 on the unloading arm 42. The unloading arm 42 is connected to the unloading frame 39. The finished pipe on the unloading conveyor frame 29 slides into the unloading frame 29 through the unloading ramp 43. The cut finished pipe is conveyed forward through the unloading conveyor frame 29 to the unloading device 40. This structure uses only a swing arm and a power source, combined with gravity, to realize the unloading of pipes, which greatly reduces the manufacturing cost of the pipe unloading mechanism e and thus reduces the overall cost of the production line.

[0093] The unloading arm 42 is provided with a first arm body 48. When the third driver 41 drives the unloading arm 42 to swing forward, the first arm body 48 tilts downward, thereby forming a unloading inclined surface 43 on the first arm body 48. The unloading rack 39 is equipped with several second support arms 49 for supporting finished pipes. The second support arms 49 are inclined downwards. When the first arm 48 is inclined downwards, it connects with the second support arm 49. The first arm 48 is located above the second support arm 49. The finished pipes on the unloading conveyor 29 slide down the unloading ramp 43 onto the second support arm 49. By setting the second support arm 49 on the unloading rack 39 to be inclined downwards and connecting the first arm 48 with the second support arm 49 end to end after swinging into place, the two together form a continuous inclined slide extending from the unloading conveyor 29 into the interior of the unloading rack 39. From the time the pipe leaves the unloading conveyor 29 until it finally stops on the second support arm 49, it is guided by the ramp support throughout the entire process, completely eliminating height difference and hard contact, and fundamentally avoiding quality problems such as surface scratches and end deformation caused by falling or impact during the transfer of the pipe.

[0094] The unloading arm 42 also includes a second arm 50 and a third arm 51. The third driver 41 drives the third arm 51. The first arm 48, the second arm 50 and the third arm 51 together form a U-shape. The rotation fulcrum of the unloading arm 42 is located between the first arm 48 and the second arm 50. The first arm 48 and the third arm 51 serve as the two side walls of the U-shape, and the second arm 50 serves as the bottom connecting section of the U-shape. The three together form a rigid frame structure. When the pipe is unloaded, the first arm 48 bears the sliding of the pipe, and the third arm 51 serves as the opposite side support. The two are connected as a whole through the second arm 50, which transforms the single-sided cantilever load-bearing into a frame-type overall load-bearing, greatly improving the bending stiffness and torsional resistance.

[0095] The unloading lever arm 42 includes a driving lever arm 52 and several driven lever arms 53. The driving lever arm 52 and the driven lever arms 53 are arranged along the length of the pipe. The third driver 41 drives and connects to the driving lever arm 52. The driving lever arm 52 is connected to the driven lever arms 53 through the first transmission shaft 54. When the driving lever arm 52 swings, it drives the driven lever arms 53 to swing synchronously through the first transmission shaft 54. In this embodiment, four driven lever arms 53 are provided. The multiple lever arms are adapted to longer pipes, so that the pipe can be lifted stably.

[0096] The unloading conveyor frame 29 is provided with a fourth positioning plate 119. The unloading lever arm 42 is rotatably connected to the fourth positioning plate 119 through a shaft, thereby allowing the unloading lever arm 42 to be rotatably mounted on the unloading conveyor frame 29. The shaft is the fourth pin 120, and the shaft is the pivot point.

[0097] The unloading conveyor 29 is rotatably equipped with third limiting guide wheels 55 on both sides. The finished pipe on the unloading conveyor 29 is limited between the two third limiting guide wheels 55. The pipe is conveyed forward on the unloading conveyor 29 along the third limiting guide wheels 55. The third limiting guide wheels 55 can prevent the pipe from deviating to the left or right and falling out of the unloading conveyor 29 when it is being conveyed forward. At the same time, when unloading is not being carried out, it can prevent the finished pipe from falling into the unloading rack 39 due to accident. When the third driver 41 drives the unloading arm 42 to swing forward, the unloading arm 42 lifts the finished pipe on the unloading conveyor 29 upward so that the finished pipe moves above the third limiting guide wheel 55. In this way, when unloading, the third limiting guide wheel 55 will not block the finished pipe from sliding into the unloading rack 39.

[0098] The feeding conveyor 1 has a third positioning shaft 121 on each side, and the third limiting guide wheel 55 is rotatably mounted on the corresponding third positioning shaft 121. In this embodiment, the feeding conveyor 29 can simultaneously convey two pipes, and each pipe rolls and rubs against the corresponding third limiting guide wheel 55 when it is conveyed forward.

[0099] The second support arm 49 is provided with a second baffle 56 at one end (i.e., the upper end) near the unloading conveyor 29. The second baffle 56 blocks the finished pipe on the unloading conveyor 29, which has the same function as the third limit guide wheel 55. That is, when unloading is not being carried out, it can prevent the finished pipe from falling into the unloading frame 39 due to accident. When the third driver 41 drives the unloading arm 42 to swing forward, the unloading arm 42 lifts the finished pipe on the unloading conveyor 29 upward so that the finished pipe moves above the baffle 56. In this way, when unloading, the second baffle 56 will not prevent the finished pipe from sliding into the unloading frame 39.

[0100] The unloading rack 39 is provided with a limiting part 57, which is located at the end of the second support arm 49 away from the unloading conveyor 29 (i.e., the lower end). When the finished pipe on the unloading conveyor 29 slides down onto the second support arm 49, it is limited to the limiting part 57 to prevent the finished pipe from falling out of the unloading rack 39.

[0101] The unloading rack 39 is provided with a first column 122 and a second column 123 on both sides respectively. One end of the second support arm 49 is fixed on the first column 122 and the other end is fixed on the second column 123. The limiting part 57 is provided on the top of the second column 123.

[0102] The third driver 41 is a cylinder, which includes a second cylinder body 124 and a second piston rod 125 telescopically mounted on the second cylinder body 124. A second positioning seat assembly 126 is provided on the unloading conveyor frame 3. The second cylinder body 124 is rotatably mounted on the second positioning seat assembly 126, and the second piston rod 125 is rotatably connected to the unloading lever arm 42.

[0103] When the second piston rod 125 retracts, it causes the feeding arm 42 to swing in the forward (clockwise) direction. When the second piston rod 125 extends, it causes the feeding arm 42 to swing in the reverse (counterclockwise) direction to reset.

[0104] The end of the second piston rod 125 is provided with a connector 127, which is rotatably connected to the third arm 51 via a second pin 128.

[0105] The second positioning seat assembly 126 includes a second positioning seat 129 and a fifth positioning plate 130. The second positioning seat 129 is fixed on the unloading conveyor frame 29, and the fifth positioning plate 130 is fixed on the second positioning seat 129 by screws. The second cylinder 124 is rotatably mounted on the fifth positioning plate 130 by the fifth pin 131.

[0106] A second detection component is provided at the end of the unloading conveyor 29. The second detection component includes a second mounting bracket 132 and a second detection probe (not shown in the figure). The second mounting bracket 132 is fixed on the unloading conveyor 29, and the second detection probe is fixed on the second mounting bracket 132. When the finished pipe is conveyed to the unloading mechanism e, the second detection probe senses the finished pipe, and the control circuit board controls the third cylinder 41 to move, thereby transferring the finished pipe on the conveyor line a to the unloading frame 39.

[0107] Equipment operating modes: manual and automatic. Manual mode is achieved by manually controlling each action individually through the control buttons on the panel. Automatic mode is achieved by automatically controlling the feeding, positioning, cutting, and unloading actions through the PLC.

[0108] Equipment cutting process: Power on the equipment → Adjust the cutting length → Adjust the sawing speed → Place the pipe into the storage rack 1 → Start the feeding mechanism b to put the pipe into the conveyor line a → Start the cutting program → Conveyor line a transports the pipe to the positioning component c → The first detection probe senses that the pipe is in place and automatically stops the conveying → The saw automatically clamps and starts sawing → After sawing is completed, the pipe is automatically released and the saw blade returns to its original position → Conveyor line a transports the pipe to the unloading mechanism e → The second detection probe senses that the pipe is in place and automatically starts the unloading mechanism e to unload the finished pipe.

[0109] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe cutting production line, characterized in that: include: Conveyor line (a), said conveyor line (a) is used for conveying pipes; The feeding mechanism (b) is connected to one end of the conveyor line (a) and is used to feed the pipes to the conveyor line (a). A positioning component (c) is disposed on the conveyor line (a) for positioning the pipe on the conveyor line (a); A cutting mechanism (d) is installed on the conveyor line (a). When the pipe is conveyed to the positioning component (c), the cutting mechanism (d) performs a cutting operation on the pipe. The unloading mechanism (e) is connected to the other end of the conveyor line (a), and the cut finished pipe leaves the conveyor line (a) through the unloading mechanism (e).

2. The pipe cutting production line according to claim 1, characterized in that: The feeding mechanism (b) includes a storage rack (1) and a feeding device (2). The conveyor line (a) includes a feeding conveyor frame (3). The feeding device (2) is located between the storage rack (1) and the feeding conveyor frame (3). It includes a first driver (4) and a feeding arm (5). The feeding arm (5) is rotatably mounted on the feeding conveyor frame (3). The storage rack (1) is provided with a first support arm (6) for placing pipes. The first support arm (6) is connected to the feeding arm (5). When the pipes are fed, the first driver (4) drives the feeding arm (5) to swing upward to form a feeding ramp (7). The pipes on the storage rack (1) slide into the feeding conveyor frame (3) through the feeding ramp (7).

3. The pipe cutting production line according to claim 2, characterized in that: The first support arm (6) is inclined up and down. The lower end of the first support arm (6) is provided with a stop block (8) for blocking the pipe. One end of the feeding arm (5) is provided with a protrusion (9). The feeding position (10) is formed between the stop block (8) and the protrusion (9). The pipe slides down along the inclined first support arm (6) to the feeding position (10). When the feeding arm (5) swings up, it lifts the pipe on the feeding position (10) so that the pipe moves above the stop block (8) and then the pipe slides into the feeding conveyor frame (1) through the feeding ramp (7). The feeding arm (5) is provided with a first baffle (11) at one end; when the feeding arm (5) swings upward, the first baffle (11) blocks the pipe on the first support arm (6); when the first driver (4) drives the feeding arm (5) to swing downward to reset, the pipe on the first support arm (6) slides downward to the feeding position (10).

4. The pipe cutting production line according to claim 2, characterized in that: A buffer arm (12) is rotatably mounted on the feeding conveyor frame (3), and a linkage rod (13) is fixedly mounted on the feeding arm (5). The linkage rod (13) abuts against the buffer arm (12). When the feeding arm (5) swings upward, it pushes the buffer arm (12) to swing upward through the linkage rod (13). When the pipe slides into the feeding conveyor frame (3), it is limited and buffered on the buffer arm (12). The feeding conveyor frame (3) is equipped with a feeding conveyor station (14); after the pipe slides into the feeding conveyor frame (3), the first driver (4) drives the feeding arm (5) to swing downward and reset, so that the buffer arm (12) swings downward and resets synchronously, thereby causing the pipe to fall into the conveyor station (14). The feeding conveyor frame (3) is equipped with limit guide wheels on both sides. The conveying station (14) is set between the two limit guide wheels. After the pipe falls into the conveying station (14), it is conveyed forward along the limit guide wheels. The limiting guide wheel includes a first limiting guide wheel (44) and a second limiting guide wheel (45). The first limiting guide wheel (44) is close to the first support arm (6), and the second limiting guide wheel (45) is far away from the first support arm (6). The height of the second limiting guide wheel (45) is higher than the height of the first limiting guide wheel (44). The feeding conveyor (3) is equipped with a heightening block (46), and a material blocking column (47) is provided on the heightening block (46). The material blocking column (47) is located above the second limit guide wheel (45).

5. The pipe cutting production line according to claim 4, characterized in that: The cutting mechanism (d) includes a first cutting device (15) and a second cutting device (16). When the pipe is transported to the positioning component (c), the first cutting device (15) and the second cutting device (16) perform cutting operations on the pipe. The position of the second cutting device (16) is fixed and cannot be adjusted. The positions of the first cutting device (15) and the positioning component (c) relative to the second cutting device (16) are movable and adjustable, thereby adjusting the cutting length of the pipe. The conveyor line (a) includes a first intermediate conveyor assembly (17), which is connected to the feeding conveyor frame (3). The first intermediate conveyor assembly (17), the first cutting device (15), and the positioning assembly (c) are located on both sides of the second cutting device (16). The first intermediate conveyor assembly (17) can move and adjust synchronously with the first cutting device (1), and the position of the first intermediate conveyor assembly (17) relative to the first cutting device (15) can be moved and adjusted.

6. The pipe cutting production line according to claim 5, characterized in that: It also includes a fixed base (18), a first cutting device (15) and a first intermediate conveying assembly (17) which are slidably disposed on the fixed base (18), a second cutting device (16) which is fixedly disposed on the fixed base (18), a first adjusting assembly is disposed on the fixed base (18), the first cutting device (15) is mounted on the first adjusting assembly, and when the first adjusting assembly is adjusted, it drives the first cutting device (15) to slide on the fixed base (18), thereby adjusting the position of the first cutting device (15) relative to the second cutting device (16); The first adjustment assembly includes a first handwheel (19), a first screw (20), and a first nut (21). The first screw (20) is rotatably mounted on the fixed base (18), the first handwheel (19) is fixed to the end of the first screw (20), the first nut (21) is slidably mounted on the first screw (20), and the first cutting device (15) is fixedly connected to the first nut (21). The first cutting device (15) is provided with a sliding bracket (22) at the bottom, and a first roller (23) is provided at the bottom of the sliding bracket (22). A first guide rail (24) is provided on the fixed base (18). The first cutting device (15) is slidably mounted on the first guide rail (24) via the first roller (23). The first intermediate conveying assembly (17) is provided with a second roller (25) at the bottom, and a second guide rail (26) is provided on the fixed base (18). The first intermediate conveying assembly (17) is slidably mounted on the second guide rail (26) via the second roller (25). A strip (27) is provided on the sliding bracket (22), and a sleeve (28) is provided on the first intermediate conveying component (17). The strip (27) is inserted into the sleeve (28). A locking part is provided between the strip (27) and the sleeve (28). The strip (27) and the sleeve (28) can be locked or unlocked by the locking part. When the strip (27) and the sleeve (28) are locked, the first intermediate conveying component (17) can move and adjust synchronously with the first cutting device (15). When the strip (27) and the sleeve (28) are unlocked, the strip (27) can slide on the sleeve (28). The position of the first intermediate conveying component (17) relative to the first cutting device (15) can be moved and adjusted.

7. The pipe cutting production line according to claim 6, characterized in that: The conveyor line (a) includes a feeding conveyor frame (29), on which a second adjustment component is provided. A positioning component (c) is installed on the second adjustment component. When the second adjustment component is adjusted, it drives the positioning component (c) to slide on the feeding conveyor frame (29), thereby adjusting the position of the positioning component (c) relative to the second cutting device (16). The second adjustment assembly includes a second handwheel (30), a second screw (31), a second nut (32), and a mounting plate (33). The second screw (31) is rotatably mounted on the unloading conveyor frame (29). The second handwheel (30) is fixed to the end of the second screw (31). The second nut (32) is slidably mounted on the second screw (31). The mounting plate (33) is fixedly connected to the second nut (32). The positioning component (c) includes a movable positioning seat (34), a second driver (35), and a baffle plate (36). The movable positioning seat (34) is fixed on the mounting plate (33), and the second driver (35) is fixed on the movable positioning seat (34). The second driver (35) drives the baffle plate (36) to move up and down. When the pipe is conveyed to the positioning component (3), the baffle plate (36) moves down to block the pipe from being conveyed forward. The mobile positioning seat (34) is provided with a first detection component, which includes a first mounting frame (37) and a first detection probe mounted on the first mounting frame (37). When the pipe is conveyed to the positioning component (c), it acts on the first detection probe to stop the conveying line (a) from conveying the pipe. The conveyor line (a) includes a second intermediate conveyor assembly (38), which is located between the first intermediate conveyor assembly (17) and the unloading conveyor frame (29), and is close to the second cutting device (16). The second intermediate conveyor assembly (38) is slidably mounted on the fixed base (18) to adjust the position of the second intermediate conveyor assembly (38) relative to the second cutting device (16).

8. The pipe cutting production line according to claim 7, characterized in that: The unloading mechanism (e) includes an unloading frame (39) and an unloading device (40). The unloading device (40) is located between the unloading conveyor (29) and the unloading frame (39). It includes a third driver (41) and an unloading arm (42). The third driver (41) drives the unloading arm (42) to rotate on the unloading conveyor (29). When the pipe is unloaded, the third driver (41) drives the unloading arm (42) to swing forward so as to form an unloading ramp (43) on the unloading arm (42). The unloading arm (42) is connected to the unloading frame (39). The finished pipe on the unloading conveyor (29) slides into the unloading frame (2) through the unloading ramp (43).

9. The pipe cutting production line according to claim 8, characterized in that: The unloading lever (42) is provided with a first arm body (48). When the third driver (41) drives the unloading lever (42) to swing forward, the first arm body (48) tilts downward, thereby forming an unloading slope (43) on the first arm body (48). The unloading rack (39) is provided with several second support arms (49) for supporting finished pipes. The second support arms (49) are inclined downwards. When the first arm (48) is inclined downwards, it connects with the second support arm (49). The finished pipes on the unloading conveyor rack (29) slide down onto the second support arm (49) via the unloading ramp (43). The unloading lever (42) also includes a second arm body (50) and a third arm body (51). The third driver (41) drives the connection of the third arm body (51). The first arm body (48), the second arm body (50) and the third arm body (51) together form a U-shape. The rotation fulcrum of the unloading lever (42) is located between the first arm body (48) and the second arm body (50). The unloading arm (42) includes an active arm (52) and several driven arms (53). The active arm (52) and the driven arms (53) are arranged along the length of the pipe. The third driver (41) drives the active arm (52). The active arm (52) is connected to the driven arms (53) through the first transmission shaft (54).

10. The pipe cutting production line according to claim 8, characterized in that: The unloading conveyor (29) is provided with third limiting guide wheels (55) on both sides. The finished pipe on the unloading conveyor (29) is limited between the two third limiting guide wheels (55). When the third driver (41) drives the unloading arm (42) to swing forward, the unloading arm (42) lifts the finished pipe on the unloading conveyor (29) upward so that the finished pipe moves above the third limiting guide wheel (55). The second support arm (49) is provided with a second baffle (56) at one end near the unloading conveyor (29). The second baffle (56) blocks the finished pipe on the unloading conveyor (29). When the third driver (41) drives the unloading arm (42) to swing forward, the unloading arm (42) lifts the finished pipe on the unloading conveyor (29) upward so that the finished pipe moves above the baffle (56). The unloading rack (39) is provided with a limiting part (57). The limiting part (57) is located at the end of the second support arm (49) away from the unloading conveyor (29). When the finished pipe on the unloading conveyor (29) slides down onto the second support arm (49), it is limited to the limiting part (57).

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