Pipe picking machine for chain manufacturing and technology of pipe picking machine

Abstract

The invention relates to the technical field of pipeline selection, in particular to a pipe picking machine for chain manufacturing and a process thereof.The pipe picking machine comprises a pipe picking machine body, a transverse mounting frame is transversely mounted in a cavity formed in the pipe picking machine body, and a protective shell is fixedly mounted on the upper surface of the transverse mounting frame; a first guide plate fixedly mounted on the upper surface of the transverse mounting frame is arranged in the protective shell, and the first guide plate is used for guiding the cut pipe section; a fixed mounting frame is arranged at the top of the first guide plate, a rotatable guide plate is rotationally connected into a structure formed by the fixed mounting frame and the first guide plate, and the part, located outside the first guide plate, of the rotatable guide plate is used for pressing and guiding the pipe section. The rotatable guide plate rotates to form different guide structures to guide and sort the pipe ends in a non-contact manner, so that direct contact with the pipe ends is avoided, damage to the surfaces of the pipe ends is reduced, and the pipe end sorting device is particularly suitable for pipe end products with high surface quality requirements.

Description

Technical Field

[0001] The invention relates to the technical field of pipe selection, in particular to a pipe picking machine for chain manufacturing and a process thereof. Background Art

[0002] The pipe picking machine for chain manufacturing is a device used to process hollow pipes during the chain production process. It is mainly used in the production workshops of chain manufacturing companies. Before the assembly and welding of the chain, the hollow pipes are pre-processed, and the hollow pipes are preliminarily cut, sorted and arranged to provide high-quality pipes for the subsequent chain manufacturing process.

[0003] The pipe lifting machine used in chain manufacturing generally adopts a toggle mechanism to apply pressure to the side of the pipe section and screen out unsuitable pipe sections. During the toggle process, the lever or other toggle components of the pipe lifting machine are in direct contact with the pipe and apply external force, which can easily leave scratches, pits and other damages on the surface of the pipe, affecting the appearance quality of the pipe. For some chain pipes with high requirements on surface quality, such damage may cause the pipe to be scrapped or reduce the overall quality of the product. Summary of the invention

[0004] The object of the present invention is to provide a pipe lifting machine for chain manufacturing and a process thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a pipe lifting machine for chain manufacturing and a process thereof, comprising a pipe lifting machine body, wherein a transverse mounting frame is transversely mounted in a chamber provided on the pipe lifting machine body; A protective shell is fixedly mounted on the upper surface of the transverse mounting frame, and a first guide plate fixedly mounted on the upper surface of the transverse mounting frame is arranged inside the protective shell, and the first guide plate is used to guide the cut pipe sections; A fixed mounting frame is provided on the top of the first guide plate, and a rotatable guide plate is rotatably connected in the structure composed of the fixed mounting frame and the first guide plate, and the part of the rotatable guide plate located outside the first guide plate is used for pressure guidance of the pipe section; A stepper motor is arranged above the fixed mounting frame, and an output shaft of the stepper motor passes through the fixed mounting frame and is fixedly connected to the rotatable guide plate.

[0006] Preferably, a protective sleeve is provided on the portion of the rotatable guide plate outside the structure composed of the first guide plate and the fixed mounting frame, and the protective sleeve is used to reduce the pressure applied to the pipe section.

[0007] Preferably, a second guide plate is fixedly mounted on the first guide plate, and the first guide plate and the second guide plate form a semi-enclosed structure of the guide pipe section; A groove is formed at a position on the horizontal mounting frame corresponding to the semi-enclosing structure, and a discharge pipe is fixedly installed in the groove. The discharge pipe is used for conveying pipe segments.

[0008] Preferably, the first guide plate is composed of two V-shaped plates arranged symmetrically left and right, and there is a gap for installing a rotatable guide plate between the two V-shaped plates.

[0009] Preferably, a conveyor belt is drivingly connected to the horizontal mounting frame. A driving motor drivingly connected to the conveyor belt is arranged on one side of the horizontal mounting frame. A horizontal assembly plate is fixedly installed on the upper surface of the horizontal mounting frame. An adjustment screw rod is threadedly connected to the horizontal assembly plate. One end of the adjustment screw rod without an end cover is rotatably connected to a rotatable collar, and an inner limit plate is fixedly installed outside the rotatable collar.

[0010] Preferably, there are two groups of the horizontal assembly plates, and the two groups of horizontal assembly plates are respectively arranged on both sides of a sunken cutting groove formed on the horizontal mounting frame.

[0011] Preferably, an oil cylinder is arranged above the horizontal mounting frame. A U-shaped frame is arranged at the end of the piston rod of the oil cylinder, and a laser cutting machine is arranged on the U-shaped frame.

[0012] Preferably, a vertical mounting rod is arranged on the inner limit plate close to the blanking side. A liftable sleeve is movably sleeved outside the vertical mounting rod. A locking bolt is threadedly connected to the liftable sleeve, and the locking bolt supports at a corresponding position on the outer wall of the vertical mounting rod; On the inner side of the liftable sleeve, an assembly back plate is arranged, and a pressure detector is fixedly installed on the assembly back plate.

[0013] Preferably, a lower fixed plate is fixedly installed on the outer wall of the pipe picking machine body. An upper movable plate is arranged above the lower fixed plate. An electric push rod is fixedly installed on the side wall of the pipe picking machine body through an auxiliary mounting plate, and the piston rod of the electric push rod is fixedly installed with the upper movable plate.

[0014] Preferably, a vertical positioning insertion rod is fixedly installed on the outer wall of the lower fixed plate, and a positioning sleeve is fixedly installed on the outer wall of the upper movable plate. The vertical positioning insertion rod is movably inserted into the positioning sleeve; Guide rollers fixedly installed through shaft seats are arranged on the adjacent sides of the upper movable plate and the lower fixed plate.

[0015] Preferably, a driving roller is rotatably connected to the lower fixed plate. The driving roller is driven by a motor. The driving roller is arranged on the lower fixed plate, and the top of the driving roller and the top of the lower guide roller below are on the same horizontal plane.

[0016] A process for manufacturing a chain includes the following steps: Step 1: According to the size of the cut pipe, adjust the structure of each part of the pipe lifting machine to adapt to hollow pipes of different sizes.

[0017] Step 2: The rotation of the transmission roller applies friction to the outer wall of the hollow tube to drive the hollow tube to be transported. The conveyor belt transmission applies friction to the bottom of the hollow tube again to realize the transportation of the hollow tube.

[0018] Step 3: The laser generated by the laser cutting machine is driven down by the oil cylinder, and the laser generated by the laser cutting machine descends to cut the hollow tube.

[0019] Step 4: After the hollow tube is cut, the outer wall of the hollow tube will contact the pressure detector, and the rotatable guide plate can screen the cut hollow tube, which will fall into the discharge pipe under the guidance of the structure composed of the first guide plate and the second guide plate to realize the transportation of the hollow tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The output shaft of the stepper motor drives the rotatable guide plate to rotate. After the rotatable guide plate rotates, the rotatable guide plate and the first guide plate on one side form a guide slope to apply a guiding force to the cut hollow tubes. The rotatable guide plate rotates in the opposite direction, and the rotatable guide plate and the first guide plate on the other side form another guide slope to realize the sorting and transportation of the hollow tubes. The rotatable guide plate forms different guide structures through rotation to guide and sort the tube ends in a non-contact manner. This method avoids direct contact with the tube ends and reduces damage to the tube end surface, and is particularly suitable for tube end products with high surface quality requirements.

[0021] 2. According to the size of the cut pipe, the structure of each part of the pipe lifting machine is adjusted to adapt to hollow pipes of different sizes. It can adapt to the cutting of hollow pipes of various sizes, avoiding the need to purchase or customize equipment separately for pipes of different sizes, reducing the company's equipment procurement cost and warehousing cost, so that one pipe lifting machine can meet a variety of production needs, and improve the equipment's utilization efficiency and return on investment.

[0022] 3. According to the outer diameter of the hollow tube, adjust the distance between the two inner limit plates to ensure the stability of the hollow tube during transportation and prevent the hollow tube from tilting and deviating. By adjusting the distance of the inner limit plates to match the outer diameter of the hollow tube, the shaking and deviation of the hollow tube during transportation can be effectively limited, ensuring that the hollow tube is always transported smoothly along the predetermined path, thereby improving the transportation quality, avoiding collisions, scratches and other problems caused by the tilting and deviation of the hollow tube, and reducing the risk of damage and deformation of the pipe surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the present invention.

[0024] Figure 2 This is a schematic side view structure diagram of the present invention.

[0025] Figure 3 This is a schematic structure diagram at the corresponding position of the upper movable plate of the present invention.

[0026] Figure 4 This is a schematic structure diagram at the corresponding position of the guide roller of the present invention.

[0027] Figure 5 This is a schematic structure diagram at the corresponding position of the positioning sleeve of the present invention.

[0028] Figure 6 This is a schematic structure diagram at the corresponding position of the inner limit plate of the present invention.

[0029] Figure 7 This is a schematic structure diagram at the corresponding position of the U-shaped frame of the present invention.

[0030] Figure 8 This is a schematic structure diagram at the corresponding position of the horizontal assembly plate of the present invention.

[0031] Figure 9 This is a schematic structure diagram at the corresponding position of the vertical installation rod of the present invention.

[0032] Figure 10 This is a schematic structure diagram at the corresponding position of the assembly back plate of the present invention.

[0033] Figure 11 This is a schematic structure diagram at the corresponding position of the protective sleeve of the present invention.

[0034] Figure 12 This is a schematic structure diagram at the corresponding position of the fixed mounting bracket of the present invention.

[0035] In the figure: 1. Pick-up pipe machine body; 2. Horizontal mounting frame; 3. Protective shell; 4. First guide plate; 5. Fixed mounting bracket; 6. Rotatable guide plate; 7. Stepper motor; 8. Protective sleeve; 9. Second guide plate; 10. Discharge pipe; 11. Conveyor belt; 12. Drive motor; 13. Horizontal assembly plate; 14. Positioning screw rod; 15. Rotatable collar; 16. Inner limit plate; 17. Sinking cutting groove; 18. Oil cylinder; 19. U-shaped frame; 20. Laser cutting machine; 21. Vertical installation rod; 22. Liftable sleeve; 23. Locking bolt; 24. Assembly back plate; 25. Pressure detector; 26. Lower fixing plate; 27. Upper movable plate; 28. Auxiliary mounting plate; 29. Electric push rod; 30. Vertical positioning plug rod; 31. Positioning sleeve; 32. Axle seat; 33. Guide roller; 34. Driving roller. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 12 , the present invention provides a technical solution: a pipe picking machine and its process for chain manufacturing, including a pipe picking machine body 1, and a horizontal mounting frame 2 is horizontally installed in a chamber opened on the pipe picking machine body 1; A protective shell 3 is fixedly installed on the upper surface of the horizontal mounting frame 2. The protective shell 3 can not only prevent external sundries from entering and affecting the normal operation of the first guide plate 4 and the rotatable guide plate 6, but also play a certain role in dust and moisture protection for the internal structure, extending the service life of the equipment. At the same time, a transparent viewing window for facilitating the observation of the internal situation is also provided on the protective shell 3, which is convenient for the operator to check the running state of the equipment at any time; a first guide plate 4 fixedly installed on the upper surface of the horizontal mounting frame 2 is arranged inside the protective shell 3, and the first guide plate 4 is used for guiding the cut pipe sections; The shape of the guide plate 4 is designed to fit the common contour of the pipe section, and its surface is finely polished, which can effectively reduce the friction force of the pipe section during the guiding process and ensure that the pipe section moves smoothly along the established route.

[0038] A fixed mounting frame 5 is arranged at the top of the first guide plate 4. A rotatable guide plate 6 is rotatably connected inside the structure composed of the fixed mounting frame 5 and the first guide plate 4. The part of the rotatable guide plate 6 located outside the first guide plate 4 is used for pressure guiding of the pipe section; A stepping motor 7 is arranged above the fixed mounting frame 5. The output shaft of the stepping motor 7 passes through the fixed mounting frame 5 and is fixedly connected to the rotatable guide plate 6. Driven by the stepping motor 7, the rotatable guide plate 6 can flexibly change its angle. When the rotatable guide plate 6 rotates to different positions, the orientation of the guiding mechanism formed by it and the first guide plate 4 also changes accordingly. After the rotatable guide plate 6 rotates clockwise by a certain angle, the guiding space formed by it and the first guide plate 4 will shift in a specific direction. For pipe sections of specific dimensions, they will be smoothly conveyed to the designated position along the new path under the guidance of this guiding mechanism to complete sorting. For pipe sections that do not meet the standards, the composition structure of the two can be adjusted, and they will be guided to another direction, thereby realizing the sorting operation of the pipe sections. This way of driving the rotatable guide plate 6 and the first guide plate 4 to work together by the stepping motor 7 has extremely high flexibility and accuracy, and can efficiently and accurately sort various objects to meet diverse production requirements.

[0039] The portion of the rotatable guide plate 6 located outside the structure composed of the first guide plate 4 and the fixed mounting frame 5 is provided with a protective sleeve 8, and the protective sleeve 8 is used to reduce the pressure applied to the pipe section.

[0040] The material of the rotatable guide plate 6 is a high-strength alloy material with a certain toughness to ensure that it is not easily deformed and damaged during the process of frequently applying pressure to the pipe section. The surface in contact with the pipe section is also covered with a wear-resistant and soft protective cover 8, which is made of rubber material, which can not only enhance the friction force on the pipe section, ensure the guiding effect, but also avoid damaging the surface of the pipe section.

[0041] A second guide plate 9 is fixedly mounted on the first guide plate 4, and the first guide plate 4 and the second guide plate 9 form a semi-enclosed structure of the guide pipe section; A trough is provided on the transverse mounting frame 2 at a position corresponding to the semi-enclosed structure, in which a discharge pipe 10 is fixedly installed. The discharge pipe 10 is used for conveying pipe sections. The size of the trough is adapted to the common specifications of the pipe sections, while ensuring that the pipe sections can pass smoothly, the pipe sections will not shake during conveying due to excessive space. The discharge pipe 10 is firmly fixedly installed in the trough. The material of the discharge pipe 10 is a durable metal material with good wear resistance. The inner wall thereof has been specially treated and is extremely smooth, which can minimize the friction of the pipe section during conveying and further improve the conveying efficiency. The diameter of the discharge pipe 10 is precisely matched with the outer diameter of the pipe section to ensure that the pipe section can fit tightly and move forward stably after entering the discharge pipe. The inclination angle has been scientifically designed, and the pipe section can slide down automatically with the assistance of gravity, reducing the consumption of additional power.

[0042] The first guide plate 4 is composed of two V-shaped plates which are symmetrically arranged, and a gap for installing the rotatable guide plate 6 is reserved between the two V-shaped plates.

[0043] A conveyor belt 11 is transmission-connected to the transverse mounting frame 2, a driving motor 12 transmission-connected to the conveyor belt 11 is arranged on one side of the transverse mounting frame 2, a transverse assembly plate 13 is fixedly mounted on the upper surface of the transverse mounting frame 2, a positioning screw 14 is threadedly connected to the transverse assembly plate 13, and a rotatable ring 15 is rotatably connected to the end of the positioning screw 14 where no end cover is arranged, and an inner limit plate 16 is fixedly mounted outside the rotatable ring 15.

[0044] The conveyor belt 11 is made of a material with high wear resistance and flexibility, capable of withstanding long-term high-intensity operation and not being prone to deformation or breakage when conveying pipe sections. Its surface is treated with special textures, increasing the friction with the pipe sections to ensure that the pipe sections do not slip during transportation and move steadily in the specified direction. Through a precisely matched transmission device, the drive motor 12 can efficiently transmit power to the conveyor belt 11, and according to actual production requirements, by adjusting the motor speed, the running speed of the conveyor belt 11 can be flexibly controlled to accurately control the conveying rhythm of the pipe sections.

[0045] The positioning screw rod 14 is threadedly connected to the transverse assembly plate 13. This connection method enables the positioning screw rod 14 to achieve precise position adjustment on the transverse assembly plate 13. When it is necessary to adjust the distance between the inner limiting plates 16 according to pipe sections of different diameters, the operator only needs to rotate the positioning screw rod 14, and using the transmission principle of the thread, the axial movement of the positioning screw rod 14 can be easily achieved.

[0046] There are two groups of transverse assembly plates 13, and the two groups of transverse assembly plates 13 are respectively arranged on both sides of the sunken cutting groove 17 opened on the transverse mounting frame 2.

[0047] An oil cylinder 18 is arranged above the transverse mounting frame 2. A U-shaped frame 19 is arranged at the end of the piston rod of the oil cylinder 18, and a laser cutting machine 20 is arranged on the U-shaped frame 19.

[0048] A vertical mounting rod 21 is arranged on the inner limiting plate 16 close to the blanking side. The vertical mounting rod 21 is made of high-quality stainless steel, with good corrosion resistance and high strength, and can be firmly fixed on the inner limiting plate 16. Its surface is finely polished, which is not only beautiful but also can reduce the friction when the liftable sleeve 22 moves on it, ensuring a smooth lifting process. A liftable sleeve 22 is movably sleeved outside the vertical mounting rod 21. A locking bolt 23 is threadedly connected to the liftable sleeve 22, and the locking bolt 23 supports at the corresponding position on the outer wall of the vertical mounting rod 21. The liftable sleeve 22 is closely sleeved outside the vertical mounting rod 21, and its material is selected as an alloy with a certain toughness and wear resistance. The inner diameter of the liftable sleeve 22 and the outer diameter of the vertical mounting rod 21 are precisely matched, which not only ensures that the liftable sleeve 22 can move up and down flexibly but also will not have obvious shaking, thus ensuring the stability of the components installed on it. The locking bolt 23 is threadedly connected to the liftable sleeve 22. When the operator needs to adjust the height of the liftable sleeve 22, only need to loosen the locking bolt 23, move the liftable sleeve 22 to the appropriate position, and then tighten the locking bolt 23 to make it firmly support at the corresponding position on the outer wall of the vertical mounting rod 21, then the position of the liftable sleeve 22 can be firmly locked, and the operation is simple and convenient; On the inner side of the liftable sleeve 22, there is an assembly backplate 24. A pressure detector 25 is fixedly installed on the assembly backplate 24. The assembly backplate 24 provided on the inner side of the liftable sleeve 22 provides a stable foundation for the installation of the pressure detector 25. The assembly backplate 24 is made of high-strength aluminum alloy and is anodized to enhance its surface hardness and corrosion resistance. The pressure detector 25 is firmly fixed on the assembly backplate 24. It can accurately detect the pressure value applied to this position during the pipe section blanking process and convert the pressure value into data related to the size of the pipe section.

[0049] The pressure detector 25 can be optionally selected as a PTX5072-TC-A1-CA-HO-PA pressure detector.

[0050] On the outer wall of the pipe picking machine body 1, a lower fixed plate 26 is fixedly installed. Above the lower fixed plate 26, there is an upper movable plate 27. On the side wall of the pipe picking machine body 1, an electric push rod 29 is fixedly installed through an auxiliary mounting plate 28. The piston rod of the electric push rod 29 is fixedly installed with the upper movable plate 27.

[0051] The upper movable plate 27 can be flexibly adjusted in height within a certain range to adapt to the processing requirements of different specifications of pipe sections. When it is necessary to process thicker or larger-sized pipe sections, the upper movable plate 27 can be raised by the electric push rod 29 to provide sufficient space for the pipe section; while when processing smaller-sized pipe sections, the upper movable plate 27 can be lowered to improve the working efficiency and stability of the equipment. This adjustable design enables the pipe picking machine to more flexibly adapt to different production tasks and improves the versatility and practicality of the equipment.

[0052] On the outer wall of the lower fixed plate 26, a vertical positioning insertion rod 30 is fixedly installed. On the outer wall of the upper movable plate 27, a positioning sleeve 31 is fixedly installed. The vertical positioning insertion rod 30 is movably inserted into the positioning sleeve 31; On the adjacent sides of the upper movable plate 27 and the lower fixed plate 26, guide rollers 33 are fixedly installed through shaft seats 32.

[0053] A driving roller 34 is rotatably connected to the lower fixed plate 26. The driving roller 34 is driven by a motor. The driving roller 34 is arranged on the lower fixed plate 26, and the top of the driving roller 34 and the top of the lower guide roller 33 are on the same horizontal plane.

[0054] Working principle: Step 1: According to the size of the pipe to be cut, adjust the structures of various parts on the pipe picking machine body 1 to adapt to hollow pipes of different sizes. Drive the upper movable plate 27 to lift and lower through the piston rod of the electric push rod 29. During the lifting and lowering process of the upper movable plate 27, it will drive the positioning sleeve 31 to lift and lower on the vertical positioning insertion rod 30. Through the cooperation of the vertical positioning insertion rod 30 and the positioning sleeve 31, guide the lifting and lowering of the upper movable plate 27 to improve the lifting stability of the upper movable plate 27. When the upper movable plate 27 descends, change the distance between the two guide rollers 33. The distance between the two guide rollers 33 is slightly larger than the outer diameter of the hollow pipe. Drive the transmission roller 34 to rotate through the operation of the motor, and apply friction to the outer wall of the hollow pipe through the rotation of the transmission roller 34 to drive the hollow pipe to be conveyed.

[0055] Step 2: According to the outer diameter of the hollow pipe, adjust the distance between the two inner limiting plates 16 to ensure the stability of the hollow pipe during the conveying process, prevent the hollow pipe from tilting and shifting. Drive the inner limiting plates 16 to move on the transverse mounting frame 2 through the rotation of the position adjustment screw rod 14, change the distance between the two inner limiting plates 16, and apply pressure and guidance to fix the side of the hollow pipe. At the same time, drive the conveyor belt 11 to drive through the output shaft of the drive motor 12, and apply friction to the lower surface of the hollow pipe again to ensure the stability of the hollow pipe conveying.

[0056] Step 3: The hollow pipe is conveyed regularly to ensure the time for the hollow pipe to be left for cutting. Drive the U-shaped frame 19 to lift and lower through the oil cylinder 18, so as to drive the laser generated by the laser cutting machine 20 to descend. The laser generated by the laser cutting machine 20 descends to cut the hollow pipe. The sunken cutting groove 17 opened on the transverse mounting frame 2 leaves space for the cutting of the laser to ensure that the hollow pipe is cut off.

[0057] Step 4: After the hollow pipe is cut, it will reach the position of the assembly back plate 24 on the vertical mounting rod 21. The outer wall of the hollow pipe will contact the pressure detector 25. The liftable sleeve 22 can move on the vertical mounting rod 21 to ensure that the pressure detector 25 contacts the outermost position of the outer wall of the hollow pipe. According to the size of the hollow pipe, the pressure applied by the hollow pipe to the pressure detector 25 is different. The pressure sensor in the pressure detector 25 can detect the pressure to detect non-compliant hollow pipes.

[0058] Step 5: The output shaft of the stepping motor 7 drives the rotatable guide plate 6 to rotate. After the rotatable guide plate 6 rotates, the rotatable guide plate 6 and the first guide plate 4 on one side form a guiding inclined plane, applying a guiding force to the cut hollow pipe. The hollow pipe contacts the protective sleeve 8 and then contacts the side surface of the first guide plate 4. After being guided by the structure composed of the first guide plate 4 and the second guide plate 9, it falls into the discharge pipe 10 to realize the conveying of the hollow pipe. The rotatable guide plate 6 rotates in the reverse direction, and the rotatable guide plate 6 and the first guide plate 4 on the other side form another guiding inclined plane to realize the sorting and conveying of the hollow pipe.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A pipe picking machine for chain manufacturing, comprising a pipe picking machine body, characterized in that: A transverse mounting frame is horizontally installed in a chamber opened on the body of the pipe picking machine; A protective shell is fixedly installed on the upper surface of the transverse mounting frame. Inside the protective shell, a first guide plate fixedly installed on the upper surface of the transverse mounting frame is provided, and the first guide plate is used to guide the cut pipe segments; A fixed mounting frame is arranged at the top of the first guide plate. A rotatable guide plate is rotatably connected inside the structure formed by the fixed mounting frame and the first guide plate, and the part of the rotatable guide plate outside the first guide plate is used for pressure guiding of the pipe segments; A stepping motor is arranged above the fixed mounting frame, and the output shaft of the stepping motor passes through the fixed mounting frame and is fixedly connected to the rotatable guide plate.

2. The tube picking machine for chain manufacturing according to claim 1, wherein: A protective sleeve is arranged on the part of the rotatable guide plate outside the structure formed by the first guide plate and the fixed mounting frame, and the protective sleeve is used to reduce the magnitude of the pressure applied to the pipe segments.

3. The pipe picking machine for chain manufacturing according to claim 2, characterized in that: A second guide plate is fixedly installed on the first guide plate, and the first guide plate and the second guide plate form a semi-surrounding structure for guiding the pipe segments; A groove body is opened at a position corresponding to the semi-surrounding structure on the transverse mounting frame, and a discharge pipe is fixedly installed in the groove body, and the discharge pipe is used for conveying the pipe segments.

4. A pipe picking machine for chain manufacturing according to claim 3, characterized in that: The first guide plate is composed of two V-shaped plates symmetrically arranged left and right, and there is a gap for installing the rotatable guide plate between the two V-shaped plates.

5. The pipe picking machine for chain manufacturing according to claim 4, characterized in that: A conveyor belt is drivingly connected to the transverse mounting frame. A driving motor drivingly connected to the conveyor belt is arranged on one side of the transverse mounting frame. A transverse assembly plate is fixedly installed on the upper surface of the transverse mounting frame. A positioning screw rod is threadedly connected to the transverse assembly plate. One end of the positioning screw rod without an end cap is rotatably connected to a rotatable collar, and an inner limiting plate is fixedly installed outside the rotatable collar.

6. The pipe picking machine for chain manufacturing according to claim 5, wherein: There are two groups of the transverse assembly plates, and the two groups of transverse assembly plates are respectively arranged on both sides of a sinking cutting groove opened on the transverse mounting frame.

7. A pipe picking machine for chain manufacturing according to claim 6, characterized in that: An oil cylinder is arranged above the transverse mounting frame. A U-shaped frame is arranged at the end of the piston rod of the oil cylinder, and a laser cutting machine is arranged on the U-shaped frame.

8. A pipe picking machine for chain manufacturing according to claim 7, characterized in that: A vertical mounting rod is arranged on the inner limiting plate close to the blanking side. A liftable sleeve is movably sleeved outside the vertical mounting rod. A locking bolt is threadedly connected to the liftable sleeve, and the locking bolt supports at a corresponding position on the outer wall of the vertical mounting rod; An assembly back plate is arranged on the inner side of the liftable sleeve, and a pressure detector is fixedly installed on the assembly back plate.

9. The pipe picking machine for chain manufacturing according to claim 8, wherein: A lower fixed plate is fixedly installed on the outer wall of the body of the pipe picking machine. An upper movable plate is arranged above the lower fixed plate. An electric push rod is fixedly installed on the side wall of the body of the pipe picking machine through an auxiliary mounting plate, and the piston rod of the electric push rod is fixedly installed with the upper movable plate.

10. A pipe picking machine for chain manufacturing according to claim 9, characterized in that: A vertical positioning insertion rod is fixedly installed on the outer wall of the lower fixed plate, and a positioning sleeve is fixedly installed on the outer wall of the upper movable plate. The vertical positioning insertion rod is movably inserted into the positioning sleeve; Guide rollers fixedly installed through shaft seats are arranged on both the upper movable plate and the lower fixed plate close to the side; 11. A pipe picking machine for chain manufacturing according to claim 10, characterized in that: A driving roller is rotatably connected to the lower fixed plate, and the driving roller is driven by a motor. The driving roller is arranged on the lower fixed plate, and the top of the driving roller and the top of the guide roller below are on the same horizontal plane.

12. A manufacturing process for a chain, used for a pipe picking machine for manufacturing a chain according to any one of claims 1-11, characterized in that, Including the following steps: S1: According to the size of the pipe to be slit as required, adjust the structures of various parts on the pipe picking machine body to adapt to hollow pipes of different sizes. S2: The rotation of the driving roller exerts frictional force on the outer wall of the hollow pipe to drive the conveyance of the hollow pipe, and the conveyor belt drive exerts frictional force on the lower part of the hollow pipe again to realize the conveyance of the hollow pipe. S3: Drive the laser generated by the laser cutting machine to descend through the oil cylinder, and the laser generated by the laser cutting machine descends to cut the hollow pipe. S4: After the hollow pipe is cut, the outer wall of the hollow pipe will contact the pressure detector, and the rotation of the rotatable guide plate screens the cut hollow pipes. Guided by the structure composed of the first guide plate and the second guide plate, they fall into the discharge pipe to realize the conveyance of the hollow pipes.

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