Automatic sectional cutting device for steel pipes

Abstract

The present application relates to the technical field of steel pipe cutting, and particularly relates to an automatic segmented cutting device for steel pipes, a cutting support roller group comprising two mutually parallel support rollers; a rear support module comprising a main shaft, a rotating mechanism for driving the main shaft to rotate, and a plurality of front support assemblies circumferentially distributed on the main shaft; the front support assemblies are connected to the main shaft; the rear support module is provided with an arc-shaped fixed baffle fixed to a rack on the outer side; the arc-shaped fixed baffle is coaxially arranged with the main shaft; the arc-shaped fixed baffle extends from one side of the main shaft to the other side of the main shaft. When the present application is used, the raw material is positioned between the front support assemblies and the arc-shaped fixed baffle, so that the cut raw material is separated from the to-be-cut raw material and is misaligned, facilitating subsequent feeding of the cut raw material; the cut raw material can be unloaded from the cutting station without manual operation, automatic unloading is realized, cutting and unloading efficiency is improved, use is safer, and processing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of steel pipe cutting technology, and in particular to an automatic segmented cutting device for steel pipes. Background Technology

[0002] In the field of steel pipe production and processing, automatic steel pipe segmentation and cutting device is a key piece of equipment to realize the fine processing of long steel pipes and meet the needs of different scenarios. Its core function is to accurately cut the whole long pipe into several finished pipes according to preset specifications. It is widely used in many industries such as construction, machinery manufacturing, and pipeline transportation.

[0003] The general workflow of the existing automatic steel pipe segmentation and cutting device is as follows: After the pipe feeder clamps and fixes the long pipe to be cut, it accurately feeds the steel pipe towards the cutting module according to the preset finished pipe length. When the steel pipe is fed to the specified length, the pipe feeder stops feeding and maintains the clamped and fixed state. Then the cutting module starts and begins to descend. At the same time, the drive wheel on the cutting module comes into contact with the surface of the steel pipe and drives the steel pipe to rotate smoothly on the cutting support roller group. The saw disc on the cutting module moves downward synchronously. During the process of the steel pipe being driven by the drive wheel to rotate one revolution, the saw disc completes the circular cut of the steel pipe, and finally cuts the long pipe to obtain a finished pipe that meets the specifications.

[0004] However, current automatic steel pipe segmentation and cutting devices still have significant technical shortcomings in practical applications, with the core issue concentrated in the unloading and removal of finished pipes. Since finished pipes are mostly long and narrow, and robotic arms are limited by their gripping range, load-bearing capacity, and operating space, they cannot stably handle long finished pipes. Therefore, in existing technologies, finished pipes are typically removed manually or by overhead crane. Both methods have numerous drawbacks, severely impacting the overall efficiency, operational safety, and economy of steel pipe segmentation and cutting.

[0005] For finished pipes longer than two meters, due to their considerable weight and length, manual handling typically requires two or more operators working together to remove them from the support roller assembly of the segmented cutting device. This manual pipe-removal method not only consumes a significant amount of labor and has low efficiency, severely slowing down the entire steel pipe processing production line, but more importantly, it poses a high safety hazard. Immediately after cutting, the cut edge of the steel pipe is extremely hot, and operators near the saw blade are highly susceptible to burns from the high temperature during handling. Furthermore, improper coordination during manual handling can cause the finished pipe to slip or tip over, resulting in equipment damage or personal injury to operators.

[0006] To address the safety hazards of manual handling, some equipment uses overhead cranes to remove finished pipes. While this method reduces operator safety to some extent, it still has significant limitations: During crane lifting, operators need to clamp and secure the finished pipes at both ends, a cumbersome process that consumes considerable time; precise control of the crane's trajectory is required to prevent collisions between the pipes and the equipment or ground, further limiting output efficiency; additionally, the purchase, installation, and maintenance costs of overhead cranes are high, increasing production costs and hindering widespread adoption.

[0007] In summary, the existing automatic steel pipe segmentation and cutting devices suffer from problems such as low efficiency, significant safety hazards, and high costs, failing to meet the needs of enterprises for large-scale, efficient, and safe production. Therefore, it is urgent to improve the discharge structure of the existing automatic steel pipe segmentation and cutting devices to address the aforementioned technical deficiencies. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing an automatic segmentation and cutting device for steel pipes.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] The present invention discloses an automatic segmented cutting device for steel pipes, comprising a frame, a cutting module, a rear support module, and a cutting support roller assembly fixed on the frame; the cutting support roller assembly comprises two parallel support rollers.

[0011] The rear support module comprises a main shaft, a rotating mechanism for driving the main shaft to rotate, and a plurality of front support components distributed circumferentially on the main shaft; the front support components are connected to the main shaft; an arc-shaped fixing baffle fixed on the frame is provided on the outer side of the rear support module; the arc-shaped fixing baffle is coaxially arranged with the main shaft; the arc-shaped fixing baffle extends from one side of the main shaft to the other side of the main shaft.

[0012] Furthermore, it also includes a storage rack; one end of the storage rack extends directly below the bottom end of the arc-shaped fixed baffle.

[0013] Furthermore, the storage rack comprises multiple support frames arranged along the length direction and long rods connected between each support frame; the support frame has multiple through holes; the total number of through holes in a single support frame is the same as the number of through holes in a single frame; the number of through holes in a single frame is equal to the number of long rods; each long rod passes through the through hole; the long rod is slidably connected to the through hole; each support frame is provided with a quick-release clamping tube clamp that holds and fixes the long rod.

[0014] Furthermore, the support frame consists of two side pressure plates and a rubber strip inserted between the two side pressure plates; the top surface of the rubber strip is provided with a support pad extending out of the top surface of the side pressure plate; each side pressure plate is provided with a quick-release clamping tube clamp on the side away from the rubber strip; the side surface of the rubber strip is provided with an opening groove; the surface of the side pressure plate is provided with a pin that matches the opening groove; the pin is inserted into the opening groove from bottom to top.

[0015] Furthermore, the support frame consists of a front support rod near the rear support module, a rear baffle away from the rear support module, and an inclined support bar connecting the front support rod and the rear baffle; the horizontal height of the inclined support bar gradually decreases as it moves away from the rear support module; the top horizontal height of the inclined support bar is higher than the bottom height of the arc-shaped fixed baffle.

[0016] Furthermore, the front support assembly consists of two front support frames and two parallel front support rollers; the front support frames are all fixed on the main shaft; and the two ends of the front support rollers are respectively rotatably connected to the two front support frames.

[0017] Furthermore, a rear-end positioning mechanism is provided on the side of the main shaft away from the cutting support roller assembly; the rear-end positioning mechanism includes a baffle, a long slide shaft connected to the frame, and a slide seat slidably connected to the long slide shaft; the baffle is fixed on the slide seat; a long guide rail is fixed on the long slide shaft; a slider slidably connected to the long guide rail is fixed on the slide seat; an internally threaded sleeve is provided on the slide seat; a locking bolt is threadedly connected to the internally threaded sleeve; the locking bolt abuts against the shaft body of the long slide shaft.

[0018] Furthermore, the long sliding shaft is rotatably connected to the frame; a follower clutch is provided between the long sliding shaft and the main shaft; a reset mechanism is provided between the frame and the long sliding shaft support; an electromagnet is fixed at the end of the baffle away from the main shaft; a small turntable is rotatably connected to the baffle at the position directly opposite the electromagnet; a rolling switch assembly connected to the electromagnet is provided on the baffle; the rolling switch assembly consists of an arc-shaped tube with one end open, a small ball disposed inside the arc-shaped tube, and a push switch disposed at the other end of the arc-shaped tube; the trigger point of the push switch extends into the inner cavity of the arc-shaped tube.

[0019] Furthermore, the reset mechanism includes a torsion spring, a first blocking block fixed on the long slide shaft, and a second blocking block fixed on the frame; both ends of the torsion spring are fixed on the long slide shaft and the frame, respectively; the follower clutch includes a fixed disc fixed on the long slide shaft, a telescopic shaft slidably connected to the fixed disc, and an arc-shaped plate fixed on the frame; a cam groove is formed on the arc-shaped plate; the distance from the cam groove to the main shaft is the cam groove distance; the cam groove distance gradually increases with the rotation direction of the main shaft; a follower wheel matching the cam groove is fixed on the telescopic shaft; the follower wheel is inserted into the cam groove.

[0020] Multiple push blocks are evenly distributed on the head of the main shaft; the number of push blocks is equal to the number of front support components; the telescopic shaft is inserted between two adjacent push blocks.

[0021] Furthermore, the main shaft is provided with multiple sliding seats; each sliding seat is slidably connected to the long guide rail; the baffle is fixed on the sliding seat furthest from the main shaft; the remaining sliding seats are provided with rear support seats; each rear support seat consists of two rear support frames fixed on the sliding seats and two parallel rear support wheels; the two ends of each rear support wheel are rotatably connected to the two rear support frames respectively; the shaft of the long sliding shaft is provided with a clearance recess; the end of the long guide rail extends to the side of the clearance recess near the main shaft.

[0022] With the above structure, the beneficial effects of this invention are as follows: The second motor drives the drive wheel to rotate, causing the raw material to rotate between the drive wheel and the two support rollers. Then, the first motor drives the saw disc to rotate, and the saw disc continues to move downwards, cutting the rotating raw material. The front support assembly is driven by the main shaft to be aligned with the cutting support roller group, ready to receive the material; the section of the raw material to be cut is inserted between the top front support assembly and the arc-shaped fixed baffle; when the raw material rotates, it can rotate on the front support assembly; after the pressure roller and drive wheel both contact the raw material, the raw material rotates on the front support assembly, and the saw disc cuts the pipe wall; after cutting, the cutting module rises and leaves the raw material, and the rotating mechanism drives the main shaft to rotate, causing each front support assembly to rotate around the main shaft. Due to the limited space formed by the arc-shaped fixed baffle and the front support assembly, the raw material will not fall out of the front support assembly; until the cut raw material descends... After the material is misaligned with the arc-shaped fixed baffle, the cut material is no longer blocked by the arc-shaped fixed baffle and separates from the front support assembly and falls off. Meanwhile, another front support assembly rotates to a position directly opposite the cutting support roller assembly to cut the next pipe. In this structure, the positioning structure formed by the front support assembly and the inner wall of the arc-shaped fixed baffle positions the material between the front support assembly and the arc-shaped fixed baffle. This allows the cut material to be separated from the material to be cut, making it easier to load the material to be cut later. The cut material can be unloaded from the cutting station without manual operation, achieving automatic unloading, improving cutting and unloading efficiency, making it safer to use, and reducing processing costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a perspective view of the present invention after the cutting module has been removed;

[0025] Figure 3 This is a right view showing the connection between the rear support module, the storage rack, and the arc-shaped fixed baffle structure.

[0026] Figure 4 It is a 3D view of the rear support module, storage rack, and arc-shaped fixed baffle structure;

[0027] Figure 5 This is a structural diagram showing the connection between the main spindle and the front support assembly;

[0028] Figure 6 It is a 3D view of the storage rack;

[0029] Figure 7 This is an assembly diagram of the support frame;

[0030] Figure 8 This is an exploded view of the support frame;

[0031] Figure 9 This is a structural diagram of a long sliding shaft;

[0032] Figure 10 This is a first-view partial view of the connection between the long sliding shaft and the follower clutch and reset mechanism;

[0033] Figure 11 This is a partial second-view view showing the connection between the long sliding shaft and the follower clutch and reset mechanism.

[0034] Figure 12 This is a structural diagram showing the connection between the rear support and the sliding seat;

[0035] Figure 13 It is a 3D view of the connection between the long sliding shaft and the rear support module;

[0036] Figure 14 yes Figure 13 Enlarged view of part A in the image;

[0037] Figure 15 This is a diagram showing the position of the electromagnet's stop plate at its highest point relative to the ground.

[0038] Figure 16 This is a diagram showing the position of the baffle relative to the ground after the electromagnet rotates 120°.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Long sliding shaft; 101. Long guide rail; 102. Clearance ring; 103. First blocking block;

[0041] 104. Fixed plate;

[0042] 2. Baffle plate; 201. Small ball; 202. Arc tube; 203. Push switch; 204. Electromagnet;

[0043] 205. Small turntable;

[0044] 3. Sliding seat; 301. Internal threaded sleeve; 302. Locking bolt; 303. Slider;

[0045] 4. Long pole;

[0046] 5. Support frame; 501. Rear baffle; 502. Diagonal support bar; 503. Front support rod; 504. Through rod hole;

[0047] 505, Rubber strip; 50501, Support pad; 50502, Opening groove; 506, Side pressure plate;

[0048] 50601, latch;

[0049] 6. Rear support base; 601. Rear support frame; 602. Rear support wheel;

[0050] 7. Spindle; 701. Push block;

[0051] 8. Arc-shaped fixed baffle;

[0052] 9. Front support assembly;

[0053] 901. Front support frame; 902. Front support roller;

[0054] 10. Frame; 1001. Arc plate; 100101. Cam groove; 1002. Second stop block;

[0055] 11. Cutting support roller assembly; 12. Cutting module; 13. Raw materials; 14. Telescopic shaft;

[0056] 1401, Follower wheel; 15, Rotating mechanism; 16, Torsion spring. Detailed Implementation

[0057] The invention will now be further described with reference to the accompanying drawings.

[0058] like Figures 1 to 16 As shown, the automatic steel pipe segmentation and cutting device of the present invention includes a frame 10, a cutting module 12, a rear support module, and a cutting support roller group 11 fixed on the frame 10. The cutting support roller group 11 includes two parallel support rollers. The support rollers are rotatably connected to the frame 10 through a connecting bracket. The raw material 13, with one end to be cut, enters the rear support module, which lifts the raw material 13 to a horizontal position (the axis of the raw material 13 is parallel to the axis of the saw disc to ensure a flat cut). The cutting module 12 includes a saw disc and a drive wheel. The cutting module 12 is equipped with a first motor for driving the saw disc to rotate and a second motor for driving the drive wheel to rotate. The entire cutting module 12 is connected to a lifting device. The lifting device lowers the cutting module 12 to bring the drive wheel into contact with the surface of the raw material 13. Combined with the two support rollers, a three-point positioning is formed. The second motor drives the drive wheel to rotate, causing the raw material 13 to rotate between the drive wheel and the two support rollers. Then, the first motor drives the saw disc to rotate, and the saw disc continues to move downward to cut the rotating raw material 13.

[0059] The rear support module comprises a main shaft 7, a rotating mechanism 15 for driving the main shaft 7 to rotate, and a plurality of front support components 9 arranged circumferentially on the main shaft 7; the front support components 9 are connected to the main shaft 7; an arc-shaped fixing baffle 8 fixed on the frame 10 is provided on the outer side of the rear support module; the arc-shaped fixing baffle 8 is coaxially arranged with the main shaft 7; the arc-shaped fixing baffle 8 extends from one side of the main shaft 7 to the other side of the main shaft 7;

[0060] In practical applications, the cutting module 12 is not fundamentally different from the existing technology, so it will not be described in detail. The cutting module 12 also has a pressure roller at the position directly opposite the front support component 9. The pressure roller also rises and falls together with the front support component 9. The saw disc is set between the pressure roller and the drive wheel. The rotating mechanism 15 is a combination of a motor and a gearbox. The motor drives the gearbox, which in turn drives the main shaft 7 to rotate. The cutting support roller group 11 consists of two parallel rollers.

[0061] After the front support assembly 9 is driven by the main shaft 7 to be directly aligned with the cutting support roller assembly 11, it is ready to receive the material.

[0062] The cut section of raw material 13 is inserted between a top front support component 9 and an arc-shaped fixed baffle 8. As raw material 13 rotates, it can rotate on the front support component 9. After both the pressure roller and the drive roller contact raw material 13, they drive it to rotate on the front support component 9, and the saw disc cuts the pipe wall. After cutting, the cutting module 12 rises and moves away from raw material 13. The rotating mechanism 15 drives the main shaft 7 to rotate, causing each front support component 9 to rotate around the main shaft 7. Due to the limited space formed by the arc-shaped fixed baffle 8 and the front support component 9, raw material 13 will not fall out of the front support component 9. This continues until the cut raw material 13 descends to a position where it is offset from the arc-shaped fixed baffle 8. After positioning, the cut raw material 13, no longer obstructed by the arc-shaped fixed baffle 8, separates from and falls off the front support assembly 9; while another front support assembly 9 rotates to a position directly opposite the cutting support roller group 11 to cut the next pipe; in this structure, the front support assembly 9 and the inner wall surface of the arc-shaped fixed baffle 8 form a positioning structure, positioning the raw material 13 between the front support assembly 9 and the arc-shaped fixed baffle 8, so that the cut raw material 13 is separated and misaligned from the raw material to be cut 13, which facilitates the subsequent feeding of the cut raw material 13. The cut raw material 13 can be unloaded from the cutting station without manual operation, realizing automatic unloading, improving cutting and unloading efficiency, making use safer, and reducing processing costs.

[0063] As a preferred embodiment of the present invention, it further includes a storage rack; one end of the storage rack extends directly below the bottom end of the arc-shaped fixed baffle 8;

[0064] The storage rack is used to store raw materials 13 for multiple finished products. After a certain number of finished raw materials 13 are piled up on the storage rack, the finished raw materials 13 on the storage rack are bundled together by a strapping machine for convenient storage and transportation.

[0065] In a preferred embodiment of the present invention, the storage rack comprises a plurality of support frames 5 arranged along the length direction and long rods 4 connected between each of the support frames 5; the support frame 5 has a plurality of rod holes 504; the total number of rod holes 504 in a single support frame 5 is the same as the number of rod holes in a single frame; the number of rod holes in a single frame is equal to the number of long rods 4; each long rod 4 passes through the rod hole 504; the long rod 4 is slidably connected to the rod hole 504; each support frame 5 is provided with a quick-release clamping tube clamp that grips and fixes the long rod 4; both ends of the long rod 4 are connected and fixed to the ground through connecting seats; the quick-release clamping tube is not fundamentally different from the prior art, so it will not be described in detail here;

[0066] The quick-release clamping tube clamp is essentially no different from existing technology, so it will not be discussed in detail. After releasing the quick-release clamping tube, the support frame 5 can slide on the long rod 4. The position of each support frame 5 is adjusted according to the length of the material being cut. When encountering a long tube, each support frame 5 is evenly distributed in front of the long tube. When encountering a short tube, to prevent the short tube from leaking between adjacent support frames 5, each support frame 5 needs to be arranged closely together. This structure makes the entire storage rack structure simpler, lighter, and reduces processing costs. Furthermore, the openwork design of the support frames 5 facilitates the passage of packaging straps.

[0067] In a preferred embodiment of the present invention, the support frame 5 comprises two side pressure plates 506 and a rubber strip 505 inserted between the two side pressure plates 506; the top surface of the rubber strip 505 is provided with a support pad 50501 extending out of the top surface of the side pressure plates 506; each side pressure plate 506 is provided with a quick-release clamping tube clamp on the side away from the rubber strip 505; the side surface of the rubber strip 505 is provided with an opening groove 50502; the surface of the side pressure plate 506 is provided with a pin 50601 that matches the opening groove 50502; the pin 50601 is inserted into the opening groove 50502 from bottom to top;

[0068] The support pad 50501 serves a supporting function, directly bearing the cut raw material 13. When the cut raw material 13 falls from the rear support module, the cushioning effect of the support pad 50501 reduces the impact on the storage rack, achieving a noise reduction effect. Furthermore, the support frame 5, composed of two side pressure plates 506 and a rubber strip 505, allows for individual replacement of the rubber strip 505 by loosening the quick-release clamping tube on one side, reducing the maintenance costs of the storage rack. The quick-release clamping tube, besides tightening and loosening the entire support frame 5 on the long rod 4, also clamps and secures the rubber strip 505 with the two side pressure plates 506, simplifying the connection structure of the support frame 5.

[0069] In a preferred embodiment of the present invention, the support frame 5 comprises a front support rod 503 near the rear support module, a rear baffle 501 away from the rear support module, and an inclined support bar 502 connecting the front support rod 503 and the rear baffle 501; the horizontal height of the inclined support bar 502 gradually decreases as it moves away from the rear support module; the top horizontal height of the inclined support bar 502 is higher than the bottom height of the arc-shaped fixed baffle 8;

[0070] like Figure 3 As shown, the gap formed between the bottom end of the arc-shaped fixed baffle 8 and the end of the inclined support bar 502 near the front support rod 503 is the discharge gap of the raw material 13; therefore, when the raw material 13 is detached from the rear support module, the center of gravity of the raw material 13 is lower than the lowest end of the arc-shaped fixed baffle 8; while the height of the rear baffle 501 is higher than the bottom end of the arc-shaped fixed baffle 8; therefore, the raw material 13 detached from the support module will not fly out of the support frame 5; the inclined support bar 502 can slowly lower the raw material 13 to the bottom, reducing the gravitational potential energy of the raw material 13, making temporary storage safer.

[0071] In practical applications, if there is enough space, a horizontal extension section can be set at the bottom of the inclined support bar 502 to allow multiple raw materials 13 to be arranged horizontally.

[0072] In a preferred embodiment of the present invention, the front support assembly 9 consists of two front support frames 901 and two parallel front support rollers 902; the front support frames 901 are all fixed on the main shaft 7; the two ends of the front support rollers 902 are respectively rotatably connected to the two front support frames 901.

[0073] The diameter of the front support roller 902 is equal to the diameter of the roller on the cutting support roller group 11; when the front support assembly 9 rotates to the top, the two front support rollers 902 are coaxial with the two rollers on the cutting support roller group 11 respectively; the pressure roller on the cutting module 12 presses the end of the raw material 13 to be cut onto the two front support rollers 902 for positioning.

[0074] In a preferred embodiment of the present invention, a rear-end positioning mechanism is provided on the side of the main shaft 7 away from the cutting support roller group 11; the rear-end positioning mechanism includes a baffle 2, a long slide shaft 1 connected to the frame 10, and a sliding seat 3 slidably connected to the long slide shaft 1; the baffle 2 is fixed on the sliding seat 3; a long guide rail 101 is fixed on the long slide shaft 1; a slider 303 slidably connected to the long guide rail 101 is fixed on the sliding seat 3; an internally threaded sleeve 301 is provided on the sliding seat 3; a locking bolt 302 is threadedly connected to the internally threaded sleeve 301; the locking bolt 302 abuts against the shaft body of the long slide shaft 1;

[0075] The baffle 2 is used to limit the end of the raw material 13, making the cutting length more precise; the internal thread sleeve 301 is a cylindrical structure with internal threads on its inner surface.

[0076] The end of the locking bolt 302 is provided with an anti-slip pad; an anti-slip groove can also be added to the shaft of the long slide shaft 1; the anti-slip pad is used to increase the resistance between the locking bolt 302 and the long slide shaft 1, and plays an anti-slip role; according to the required length of the raw material 13 to be cut, the position of the baffle 2 on the long slide shaft 1 can be adjusted by loosening the locking bolt 302.

[0077] In a preferred embodiment of the present invention, the long sliding shaft 1 is rotatably connected to the frame 10; a follower clutch is provided between the long sliding shaft 1 and the main shaft 7; a reset mechanism is provided between the frame 10 and the support of the long sliding shaft 1; an electromagnet 204 is fixed at the end of the baffle 2 away from the main shaft 7; a small turntable 205 is rotatably connected to the baffle 2 at a position directly opposite the electromagnet 204; a rolling switch assembly connected to the electromagnet 204 is provided on the baffle 2; the rolling switch assembly consists of an arc-shaped tube 202 with one end open, a small ball 201 disposed inside the arc-shaped tube 202, and a push switch 203 disposed at the other end of the arc-shaped tube 202; the trigger point of the push switch 203 extends into the inner cavity of the arc-shaped tube 202;

[0078] After the main shaft 7 rotates, it drives the long sliding shaft 1 to rotate via the follower clutch, and the baffle 2 rotates together with the long sliding shaft 1. When the long sliding shaft 1 rotates 120°, the follower clutch disengages from the long sliding shaft 1, and the reset mechanism drives the long sliding shaft 1 and the baffle 2 to rotate, so that the electromagnet 204 is placed back at the highest point. The small ball 201 can roll inside the arc tube 202. The baffle 2 is provided with a through hole, and a small turntable 205 is provided inside the through hole. The outer ring of the bearing is fixed to the wall of the through hole, and the connecting shaft on the small turntable 205 is fixed in the inner hole of the bearing. The small turntable 205 is connected to the baffle 2 through the bearing to achieve a rotatable connection. The electromagnet 204 is fixed to the baffle 2 by a bracket.

[0079] Furthermore, when the electromagnet 204 is at its highest point, the sealed end of the arc-shaped tube 202 is facing downwards, and the push switch 203 is located above the arc-shaped tube 202. The push switch 203 is not pressed by the ball 201, and the electromagnet 204 is energized. The electromagnet 204 attracts and fixes the end of the raw material 13 onto the surface of the small turntable 205. On one hand, this allows the material attracted by the magnetic field to fully adhere to the surface of the small turntable 205, improving the cutting accuracy of the raw material 13. On the other hand, it allows the end of the raw material 13 to move together with the baffle 2 when it rotates downwards. Since the baffle 2 swings at the same speed as the main shaft 7 when it feeds, the raw material 13 is attracted to the small turntable 205 by the electromagnet 204, ensuring that the raw material 13 is conveyed at the same speed back and forth, parallel to the ground, making the conveying of the raw material 13 more stable. When the baffle 2 rotates 120°, the electromagnet 204 is at its lowest point, that is, the end of the arc tube 202 facing the press switch 203 is downward; the ball 201 rolls from the sealed end of the arc tube 202 to one end of the press switch 203 and triggers the press switch 203; the rolling switch assembly de-energizes the electromagnet 204; the electromagnet 204 releases its attraction to the raw material 13, causing the raw material 13 to separate from the baffle 2.

[0080] In this structure, the circuit structure on the baffle 2 does not need to rotate continuously, which prevents the wires from getting tangled. It also does not require an additional power structure to drive the baffle 2 to rotate, reducing the cost of power equipment. After the baffle 2 rotates, the ball 201 slides in the arc tube 202 due to its own gravity, which controls the on and off of the electromagnet 204, simplifying the circuit structure.

[0081] In a preferred embodiment of the present invention, the reset mechanism includes a torsion spring 16, a first blocking block 103 fixed on the long slide shaft 1, and a second blocking block 1002 fixed on the frame 10; the two ends of the torsion spring 16 are respectively fixed on the long slide shaft 1 and the frame 10; the follower clutch includes a fixed plate 104 fixed on the long slide shaft 1, a telescopic shaft 14 slidably connected to the fixed plate 104, and an arc-shaped plate 1001 fixed on the frame 10; a cam groove 100101 is provided on the arc-shaped plate 1001; the distance from the cam groove 100101 to the main shaft 7 is the cam groove distance; the cam groove distance gradually increases with the rotation direction of the main shaft 7; a follower wheel 1401 matching the cam groove 100101 is fixed on the telescopic shaft 14; the follower wheel 1401 is inserted into the interior of the cam groove 100101;

[0082] The main shaft 7 has multiple push blocks 701 evenly distributed on its shaft head; the number of push blocks 701 is equal to the number of front support components 9; the telescopic shaft 14 is inserted between two adjacent push blocks 701; to prevent interference between the telescopic shaft 14 and the push blocks 701, the end face of the push block 701 near the long sliding shaft 1 is set as an inclined surface, that is, the thickness of the push block 701 is the largest on the side of the rotation direction and the smallest on the side away from the rotation direction. The number of push blocks 701 and the number of front support components 9 are generally three.

[0083] The spring force generated by the torsion spring 16 on the long sliding shaft 1 causes the first blocking block 103 to move closer to the second blocking block 1002 until the first blocking block 103 is in contact with the second blocking block 1002, at which point the electromagnet 204 is at its highest point. With the electromagnet 204 at its highest point, the telescopic shaft 14 is inserted between adjacent push blocks 701, and the surface of the push block 701 abuts against the telescopic shaft 14. As the main shaft 7 drives the push block 701 to rotate, the push block 701 pushes the telescopic shaft 14, causing the long sliding shaft 1 to rotate around the frame 10, and the follower wheel 1401 also slides on the cam groove 100101. During the downward rotation of the baffle 2, the follower wheel 1401 is pulled away from the main shaft 7 by the wall of the cam groove 100101.

[0084] When the long sliding shaft 1 drives the baffle 2 to rotate to 120°; the telescopic shaft 14 is completely pulled out from between the two push blocks 701, forming a misalignment with the push blocks 701;

[0085] The torsion spring 16 causes the long slide shaft 1 to rotate in the opposite direction to the main shaft 7. When the long slide shaft 1 rotates in the opposite direction, the follower wheel 1401 is pushed back to the main shaft 7 by the cam groove 100101. The end of the telescopic shaft 14 passes around the top inclined surface of the push block 701 and returns to the surface that presses against the next push block 701, completing one cutting and feeding cycle and waiting for the next feeding cycle.

[0086] By leveraging the synergistic cooperation of the torsion spring structure and the cam structure, and relying on their inherent oscillation logic, the motion incoordination problem that may occur when the main shaft 7 and the long sliding shaft 1 adopt independent power structures can be avoided, thereby improving the stability of the mechanism operation.

[0087] In a preferred embodiment of the present invention, the main shaft 7 is provided with a plurality of sliding seats 3; each sliding seat 3 is slidably connected to the long guide rail 101; the baffle 2 is fixed on the sliding seat 3 furthest from the main shaft 7; the remaining sliding seats 3 are provided with rear support seats 6; each rear support seat 6 consists of two rear support frames 601 fixed on the sliding seats 3 and two parallel rear support wheels 602; the two ends of the rear support wheels 602 are respectively rotatably connected to the two rear support frames 601; the shaft of the long sliding shaft 1 is provided with a clearance concave ring 102; the end of the long guide rail 101 extends to the side of the clearance concave ring 102 near the main shaft 7;

[0088] The rear support seats 6 on the multiple sliding seats 3 can provide multi-point support for the raw material 13; after the locking bolt 302 is loosened, the position of the baffle 2 can be adjusted, and the position of each rear support seat 6 on the long sliding shaft 1 can be adjusted according to the actual situation; and after the locking bolt 302 is loosened, each sliding seat 3 can be removed from the position of the relief ring 102, which allows for flexible arrangement of the number of rear support seats 6 and also facilitates the removal and replacement of the baffle 2.

[0089] The beneficial effects of this invention are:

[0090] 1. The main shaft drives the circumferentially distributed front support components to rotate, which, together with the arc-shaped fixed baffle, form a limiting space. The cut finished tube automatically detaches when the components rotate to the misaligned position, eliminating the need for manual handling or overhead crane hoisting. This completely solves the safety hazards of traditional tube removal methods, such as low efficiency, high-temperature burns, and finished product slippage.

[0091] 2. In the rear positioning mechanism, the electromagnet of the baffle attracts and fixes the end of the raw material to prevent the raw material from moving during cutting; at the same time, the position of the baffle can be adjusted by the sliding seat to accurately match different cutting length requirements and improve dimensional accuracy; at the same time, the rolling switch assembly uses the gravity of the ball to trigger the push switch to control the electromagnet to turn on and off, eliminating the need for complex circuits and rotating wiring, preventing wire tangling, and simplifying the control logic.

[0092] 3. The support frames of the storage rack can be adjusted in spacing via a sliding rod: the support frames are evenly arranged when cutting long pipes, and tightly arranged to prevent material leakage when cutting short pipes, adapting to the storage of finished pipes of various lengths. Finished pipes automatically fall into the storage rack below, and can be directly bundled and transported afterward, simplifying the operation process and adapting to the needs of large-scale production.

[0093] 4. The inclined support bars of the storage rack are designed to allow the finished tubes to slide down slowly, reducing impact damage from gravity. The rear baffle is higher than the bottom of the curved fixed baffle to prevent the finished tubes from falling out and improving storage safety. The rubber support pads provide both cushioning and anti-slip properties, preventing scratches or deformation caused by hard contact between the finished tubes and the storage rack, thus ensuring the appearance quality of the finished products.

[0094] 5. The support frame adopts a combination structure of "side pressure plate + rubber strip". The support pad of the rubber strip can buffer the impact of the finished tube falling and reduce noise. The rubber strip can be disassembled and replaced individually to reduce maintenance costs. The hollow design of the storage rack makes it easy for packaging straps to pass through, improving the convenience of bundling.

[0095] 6. The front support rollers of the front support assembly are coaxial with the cutting support roller group and have the same diameter, ensuring a smooth transition when receiving raw materials; the number and position of multiple rear support seats can be flexibly increased or decreased, forming multi-point support for raw materials of different lengths, and avoiding sagging and deformation of long tubes.

[0096] 7. By relying on the coordinated operation of the torsion spring structure and the cam structure, and utilizing the inherent oscillating logic, the long slide shaft and the main shaft can move synchronously without the need for independent power sources, thus avoiding the risk of uncoordinated movement and reducing equipment investment costs.

[0097] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. An automatic steel pipe segmentation and cutting device, comprising a frame (10), a cutting module (12), a rear support module and a cutting support roller group (11) fixed on the frame (10); the cutting support roller group (11) comprises two parallel support rollers; Its features are: The rear support module comprises a main shaft (7), a rotating mechanism (15) for driving the main shaft (7) to rotate, and a plurality of front support components (9) arranged in a circle on the main shaft (7); the front support components (9) are connected to the main shaft (7); an arc-shaped fixing baffle (8) fixed on the frame (10) is provided on the outer side of the rear support module; the arc-shaped fixing baffle (8) is coaxially arranged with the main shaft (7); the arc-shaped fixing baffle (8) extends from one side of the main shaft (7) to the other side of the main shaft (7); The front support assembly (9) consists of two front support frames (901) and two parallel front support rollers (902); the front support frames (901) are all fixed on the main shaft (7); the two ends of the front support rollers (902) are respectively rotatably connected to the two front support frames (901); The main shaft (7) is provided with a rear-end positioning mechanism on the side away from the cutting support roller group (11); the rear-end positioning mechanism includes a baffle (2) and a long slide shaft (1) connected to the frame (10). The long slide shaft (1) is rotatably connected to the frame (10); a follow-up clutch is provided between the long slide shaft (1) and the main shaft (7); a reset mechanism is provided between the frame (10) and the support of the long slide shaft (1); an electromagnet (204) is fixed at one end of the baffle (2) away from the main shaft (7); a small turntable (205) is rotatably connected to the baffle (2) at the position directly opposite the electromagnet (204); a rolling switch assembly connected to the electromagnet (204) is provided on the baffle (2); the rolling switch assembly consists of an arc-shaped tube (202) with one end open, a small ball (201) provided inside the arc-shaped tube (202), and a push switch (203) provided at the other end of the arc-shaped tube (202); the trigger point of the push switch (203) extends into the inner cavity of the arc-shaped tube (202).

2. The automatic segmented cutting device for steel pipes according to claim 1, characterized in that: It also includes a storage rack; one end of the storage rack extends directly below the bottom of the arc-shaped fixed baffle (8).

3. The automatic segmented cutting device for steel pipes according to claim 2, characterized in that: The storage rack comprises multiple support frames (5) arranged along the length direction and long rods (4) connected between each support frame (5); multiple rod holes (504) are provided on the support frame (5); the total number of rod holes (504) in a single support frame (5) is the number of rod holes in a single frame; the number of rod holes in a single frame is equal to the number of long rods (4); each long rod (4) passes through the rod hole (504); the long rod (4) is slidably connected to the rod hole (504); each support frame (5) is provided with a quick-release clamping tube clamp that holds and fixes the long rod (4).

4. The automatic segmented cutting device for steel pipes according to claim 3, characterized in that: The support frame (5) consists of two side pressure plates (506) and a rubber strip (505) inserted between the two side pressure plates (506); the top surface of the rubber strip (505) is provided with a support pad (50501) extending out of the top surface of the side pressure plate (506); the side pressure plate (506) is provided with a quick-release clamping pipe clamp on the side away from the rubber strip (505); the side surface of the rubber strip (505) is provided with an opening groove (50502); the surface of the side pressure plate (506) is provided with a pin (50601) that matches the opening groove (50502); the pin (50601) is inserted into the opening groove (50502) from bottom to top.

5. The automatic segmented cutting device for steel pipes according to claim 3, characterized in that: The support frame (5) consists of a front support rod (503) near the rear support module, a rear baffle (501) away from the rear support module, and an inclined support bar (502) connecting the front support rod (503) and the rear baffle (501); the horizontal height of the inclined support bar (502) gradually decreases as it moves away from the rear support module; the top horizontal height of the inclined support bar (502) is higher than the bottom height of the arc-shaped fixed baffle (8).

6. The automatic segmented cutting device for steel pipes according to claim 1, characterized in that: The rear positioning mechanism further includes a sliding seat (3) slidably connected to the long sliding shaft (1); the baffle (2) is fixed on the sliding seat (3); a long guide rail (101) is fixed on the long sliding shaft (1); a slider (303) is fixed on the sliding seat (3) and slidably connected to the long guide rail (101); an internal threaded sleeve (301) is provided on the sliding seat (3); a locking bolt (302) is threadedly connected to the internal threaded sleeve (301); and the locking bolt (302) abuts against the shaft body of the long sliding shaft (1).

7. The automatic segmented cutting device for steel pipes according to claim 1, characterized in that: The reset mechanism includes a torsion spring (16), a first stop block (103) fixed on the long slide shaft (1), and a second stop block (1002) fixed on the frame (10); the two ends of the torsion spring (16) are respectively fixed on the long slide shaft (1) and the frame (10); the follower clutch includes a fixed plate (104) fixed on the long slide shaft (1), a telescopic shaft (14) slidably connected to the fixed plate (104), and a second stop block (1002) fixed on the frame (10). An arc-shaped plate (1001) is provided with a cam groove (100101); the distance from the cam groove (100101) to the main shaft (7) is the cam groove distance; the cam groove distance gradually increases with the rotation direction of the main shaft (7); a follower wheel (1401) matching the cam groove (100101) is fixed on the telescopic shaft (14); the follower wheel (1401) is inserted into the cam groove (100101); The spindle (7) has multiple push blocks (701) evenly distributed on its shaft head; the number of push blocks (701) is equal to the number of front support components (9); the telescopic shaft (14) is inserted between two adjacent push blocks (701).

8. The automatic segmented cutting device for steel pipes according to claim 6, characterized in that: The main shaft (7) is provided with multiple sliding seats (3); each sliding seat (3) is slidably connected to the long guide rail (101); the baffle (2) is fixed on the sliding seat (3) furthest from the main shaft (7); the remaining sliding seats (3) are provided with rear support seats (6); the rear support seats (6) are composed of two rear support frames (601) fixed on the sliding seats (3) and two parallel rear support wheels (602); the two ends of the rear support wheels (602) are rotatably connected to the two rear support frames (601); the shaft of the long sliding shaft (1) is provided with a clearance concave ring (102); the end of the long guide rail (101) extends to the side of the clearance concave ring (102) near the main shaft (7).

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