Hot saw cutting and punching automatic line

Abstract

The utility model provides a kind of hot saw cutting punching automatic line equipment, belong to pipe processing technical field, including feeding row frame, drum conveying line, hot saw cutting mechanism, fixed-length mechanism, processing unit and discharging mechanism, feeding row frame is used to orderly convey pipe to drum conveying line, drum conveying line is used to convey pipe to processing unit, hot saw cutting mechanism is equipped on drum conveying line for cutting pipe, fixed-length mechanism is equipped between hot saw cutting mechanism and processing unit, fixed-length mechanism is used to preset the length of pipe cutting, the processing unit includes step transplanting mechanism, weld identification mechanism and punching mechanism.The utility model realizes full-process automation operation by integration above-mentioned mechanism, greatly reduces manual intervention, effectively reduces labor cost, simultaneously avoids high temperature, high noise and metal dust to the occupational health hazards of operator, significantly improves working environment, improves production safety.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to an automatic hot saw cutting and punching line equipment. Background Technology

[0002] Posts are the components that provide fixed support for corrugated guardrail panels. They are mostly made of tubing and absorb the energy generated during a vehicle collision, thus resisting the enormous kinetic energy produced by the vehicle instantaneously. Posts are an indispensable component of guardrail products and are widely used in guardrails, decorative designs, and safety protection accessories in industrial production, agriculture, municipal engineering, and transportation, with a large market demand.

[0003] The existing column production line for a certain project mainly uses a combination of manual hot sawing and hydraulic punching. This process requires a large number of workers, resulting in high labor costs. The high-intensity noise, high temperature, and metal dust generated during sawing seriously endanger the occupational health of employees, creating a harsh working environment and leading to difficulties in recruiting and retaining workers. In addition, the production line has a low level of automation, requiring frequent manual material handling, resulting in a chaotic work environment and making it difficult to fully utilize the high-efficiency cutting performance of hot saws, which is not conducive to achieving lean management and safe production. Utility Model Content

[0004] The purpose of this invention is to provide an automatic hot saw cutting and punching line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automated hot saw cutting and punching line includes: a loading rack, a roller conveyor line, a hot saw cutting mechanism, a length-setting mechanism, a processing unit, and a unloading mechanism. The loading rack is used to orderly transport pipes to the roller conveyor line, which in turn transports the pipes to the processing unit. The roller conveyor line is equipped with a hot saw cutting mechanism for cutting the pipes. A length-setting mechanism is provided between the hot saw cutting mechanism and the processing unit to preset the cutting length of the pipes. The processing unit includes a stepping transfer mechanism, a weld seam recognition mechanism, and a punching mechanism. The stepping transfer mechanism is used for step-by-step moving of the pipes for processing. The weld seam recognition mechanism is used to detect and adjust the weld seam position of the pipes fed into the processing unit. The punching mechanism is used to punch holes in the pipes after the weld seam position has been adjusted. The output end of the processing unit is equipped with an unloading mechanism for unloading the processed pipes.

[0007] Preferably, the feeding rack includes a stepped feeding rack body, on which a stepped feeder and a chain conveying mechanism are installed. A feeder is provided at one end of the chain conveying mechanism near the roller conveyor line. The stepped feeder is used to lift the pipes from the feeding area to the chain conveying mechanism, and the feeder is used to orderly feed the pipes on the chain conveying mechanism to the roller conveyor line.

[0008] Preferably, the roller conveyor line includes several conveying rollers, which are driven by a conveying motor. A pressure limiting mechanism is provided above the roller conveyor line to limit the pressure when conveying pipes.

[0009] Preferably, the length-fixing mechanism is located on one side of the roller conveyor line, including a length-fixing frame, a length-fixing platform slidably mounted on the length-fixing frame, a translation motor fixedly mounted on the length-fixing platform, the translation motor being used to drive the length-fixing platform to translate on the length-fixing frame, and a length-fixing baffle plate rotatably mounted on the length-fixing platform, the length-fixing baffle plate being driven to rotate by the length-fixing motor, so that the length-fixing baffle plate stops the pipe according to the preset length.

[0010] Preferably, a positioning plate is fixedly installed on the rotating shaft of the fixed length stop plate, and a fixed length cylinder is fixedly installed on the fixed length platform. A positioning hook is hinged to the front end of the fixed length cylinder. The positioning hook is rotatably installed on the fixed length platform. The positioning plate is positioned by the extension and retraction of the fixed length cylinder.

[0011] Preferably, a feeder 2 is rotatably installed at the end of the roller conveyor near the processing unit. The feeder 2 is driven to reciprocate by a feeder cylinder, so that the pipes are orderly fed to the buffer unit. The buffer unit includes a buffer frame and a stepped feeder 2, which is used to lift the pipes to the processing unit.

[0012] Preferably, a positioning mechanism is provided in front of the weld identification mechanism. The positioning mechanism is used to position both ends of the pipe to facilitate positioning processing.

[0013] Preferably, the processing unit further includes a chamfering mechanism, which is located before the weld identification mechanism. The chamfering mechanism includes a claw plate and a chamfering motor for driving the claw plate. A milling cutter is fixedly installed on the claw plate for trimming the cutting burrs at both ends of the pipe. A positioning mechanism is installed in front of the chamfering mechanism for positioning both ends of the pipe to facilitate positioning processing.

[0014] Preferably, the feeding mechanism includes a feeding conveyor line, which includes several feeding rollers. The feeding rollers are driven by a feeding motor. A third feeding device and a fourth feeding device are also provided between the feeding rollers. The third feeding device is used to feed the waste material to the waste rack, and the fourth feeding device is used to feed the finished material to the finished product area.

[0015] Preferably, a side-clamping roller conveyor is fixedly installed at the feed inlet of the hot saw cutting mechanism. The side-clamping roller conveyor includes roller bearings symmetrically installed on both sides of the feed inlet of the hot saw cutting mechanism. A guide block is provided at the front end of the roller bearing. The guide block is used to guide the pipe into the space between the roller bearings and into the hot saw cutting mechanism under the clamping of the roller bearings on both sides.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] This utility model integrates a feeding rack, roller conveyor line, hot saw cutting mechanism, length fixing mechanism, processing unit and unloading mechanism, realizing the fully automated operation of pipe from feeding, length cutting, chamfering and trimming, weld identification to punching processing. It greatly reduces manual intervention, effectively reduces labor costs, and avoids the occupational health hazards of high temperature, high noise and metal dust to operators. It significantly improves the working environment, enhances production safety and the company's ability to recruit and retain employees.

[0018] This invention precisely controls the cutting length through a fixed-length mechanism, achieves precise step-by-step transport of the pipe through a step-transfer mechanism, and automatically detects and adjusts the position of the pipe weld using a weld identification mechanism to ensure that the punching process avoids the weld area, thereby improving the product processing accuracy and structural reliability. The added chamfering mechanism can automatically remove burrs generated after hot sawing, ensuring the quality of subsequent processing. Attached Figure Description

[0019] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a top view of the structure of this utility model;

[0022] Figure 3 This is a partial schematic diagram of the feeding rack and roller conveyor line;

[0023] Figure 4 for Figure 1 A partial structural diagram of section A;

[0024] Figure 5 for Figure 2 Schematic diagram of a partial structure of B;

[0025] Figure 6 for Figure 3 Schematic diagram of a partial structure of C;

[0026] Figure 7 This is a top view of the processing unit.

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the processing unit;

[0028] Figure 9 This is a top view of the feeding mechanism.

[0029] Figure 10 This is a partial schematic diagram of the three-dimensional structure of the feeding mechanism.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Material feeding rack;

[0032] 11. Stepped feeding frame; 111. Stepped feeder one; 112. Slide rail; 113. Feeding shaft; 114. Feeding motor;

[0033] 12. Chain conveyor mechanism; 121. Chain shaft; 122. Chain motor;

[0034] 13. Feeder 1; 131. Feeder block; 132. Feeder shaft; 133. Feeder motor;

[0035] 2. Roller conveyor line; 21. Feeding roller; 22. Feeding motor; 23. Feeder II; 24. Feeder cylinder;

[0036] 3. Downward limiting mechanism; 31. Connecting platform; 32. Downward cylinder; 33. Roller fixing frame; 34. Downward roller; 35. Downward limiting rod;

[0037] 4. Hot saw cutting mechanism; 41. Side clamping and rolling mechanism; 411. Rolling bearing; 412. Guide block;

[0038] 5. Length-fixing mechanism; 51. Length-fixing frame; 52. Length-fixing platform; 53. Translation motor; 54. Length-fixing stop plate; 55. Positioning plate; 56. Length-fixing cylinder; 57. Positioning hook; 58. Buffer mechanism; 581. Buffer plate; 582. Buffer component; 583. Buffer limit rod;

[0039] 6. Processing unit; 61. Buffer unit; 611. Buffer frame; 612. Stepped feeder II; 62. Transfer mechanism; 63. Chamfering mechanism; 631. Claw plate; 632. Chamfering motor; 64. Weld seam recognition mechanism; 641. Perforated turntable gear; 642. Square tube weld seam recognition; 643. Round tube weld seam recognition; 65. Punching mechanism; 66. Positioning mechanism;

[0040] 7. Feeding mechanism; 71. Feeding conveyor line; 72. Feeding roller; 73. Feeding motor drive; 74. Feeder three; 75. Feeder four; 76. Transition piece; 8. Scrap rack; 9. Finished product area. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0042] Example 1

[0043] An automated hot saw cutting and punching line, such as Figure 1-10 As shown, it includes a feeding rack 1, a roller conveyor line 2, a hot saw cutting mechanism 4, a length fixing mechanism 5, a processing unit 6, and a unloading mechanism 7. The loading rack 1 is used to orderly transport the pipes to the roller conveyor line 2; the roller conveyor line 2 is used to transport the pipes to the processing unit 6; the hot saw cutting mechanism 4 is located on the roller conveyor line 2 and is used to cut the pipes; the length setting mechanism 5 is located between the hot saw cutting mechanism 4 and the processing unit 6 and is used to preset the length of the pipes to be cut; the processing unit 6 includes a stepping transfer mechanism 62, a chamfering mechanism 63, a weld seam recognition mechanism 64 and a punching mechanism 65. The pipes are moved step by step between the chamfering mechanism 63, the weld seam recognition mechanism 64 and the punching mechanism 65 through the stepping transfer mechanism 62, ensuring that the processing cycle is controllable and the positioning is accurate. The weld seam recognition mechanism 64 is used to detect and adjust the weld seam position of the pipes after chamfering. The punching mechanism 65 is used to punch holes in the pipes after the weld seam position is adjusted. The output end of the processing unit 6 is provided with a unloading mechanism 7, which is used to unload the pipes after processing.

[0044] like Figure 3 As shown, the feeding rack 1 includes a stepped feeding rack body 11, on which a stepped feeder 111 and a chain conveyor mechanism 12 are installed. A feeder 13 is located at one end of the chain conveyor mechanism 12 near the roller conveyor line 2. The stepped feeder 111 is used to lift the pipes from the feeding area to the chain conveyor mechanism 12, and the feeder 13 is used to orderly feed the pipes on the chain conveyor mechanism 12 to the roller conveyor line 2. The feeding rack 1 uses a motor-driven chain to lay the bundled pipes flat one by one and send the pipes to be cut to the roller conveyor line 2, completing the raw material feeding.

[0045] Specifically, the stepped feeder 111 includes several sets of slide rails 112 fixedly installed on the stepped feeder frame 11. Each slide rail 112 is slidably mounted on one side, and a rack is fixedly mounted on one side of each slide rail 112. The rack meshes with a gear, and all gears are connected through a feed shaft 113. The feed shaft 113 is connected to a feed motor 114 through gears and a chain. By driving the feed motor 114 to rotate forward and backward, the slide rails 112 reciprocate vertically, thereby lifting the pipe from the feed area to the chain conveyor mechanism 12. The chain conveying mechanism 12 includes several horizontally arranged parallel chains and chain shafts 121 that pass through and connect the chains. The chains and shafts are connected by gears fixed on the shafts. The chain shafts 121 are driven by a chain motor 122, so that the chains rotate synchronously. The feeder 13 includes several feed blocks 131 and a feed shaft 132 that passes through the feed blocks 131. The feed shaft 132 is driven by a feed motor 133, so that the feed blocks 131 rotate synchronously around the feed shaft 132, thereby orderly feeding the pipes on the chain conveying mechanism 12 to the roller conveyor line 2.

[0046] like Figure 3 and Figure 4 As shown, the roller conveyor line 2 includes several conveying rollers 21, which are connected by chain drive. One of the conveying rollers 21 is connected to a conveying motor 22 via gears and a chain, and the conveying motor 22 drives the conveying roller 21 to rotate synchronously. In this embodiment, the chain drive connection of the roller conveyor line 2 can be replaced by a motor-driven belt system. In addition, multiple roller conveyors 2 are provided to realize long-distance linear transportation of pipes. A downward pressure limiting mechanism 3 is provided above the roller conveyor line 2. The downward pressure limiting mechanism 3 includes a connecting platform 31, which is fixedly installed on the frame of the roller conveyor line 2. A downward pressure cylinder 32 is fixedly installed above the connecting platform 31. The cylinder rod of the downward pressure cylinder 32 extends downward through the connecting platform 31 and is fixedly connected to a roller fixing frame 33. A downward pressure roller 34 is rotatably installed below the roller fixing frame 33 through a bearing. A downward pressure limiting rod 35 extending upward through the side clamping platform is also fixedly installed above the roller fixing frame 33. There are two downward pressure limiting rods 35, which are located on both sides of the downward pressure cylinder 32. The direction of the connection between the downward pressure limiting rod 35 and the downward pressure cylinder 32 is the same as the axial direction of the downward pressure roller 34.

[0047] like Figure 5As shown, the hot saw cutting mechanism 4 is existing technology. Based on the existing technology of the hot saw cutting mechanism 4, a side clamping roller conveying mechanism 41 is fixedly installed at its feed port. The side clamping roller conveying mechanism 41 includes a roller conveying bearing 411 and a guide block 412. There are at least two roller conveying bearings 411, which are fixedly installed on both sides of the feed port of the hot saw cutting mechanism 4 to clamp the pipe passing through the hot saw cutting mechanism 4. The guide block 412 is located on one side of the roller conveying bearing 411 and is used to guide the pipe into the space between the roller conveying bearings 411.

[0048] like Figure 6 As shown, the length-fixing mechanism 5 includes a length-fixing frame 51, which is located on one side of the roller conveyor line 2. A length-fixing platform 52 is slidably mounted on the frame. A translation motor 53 is fixedly mounted on the length-fixing platform 52. The translation motor 53 drives the length-fixing platform 52 to translate on the length-fixing frame 51 by meshing with a rack on the side of the length-fixing frame 51 through a gear. A length-fixing baffle plate 54 is also rotatably mounted on the length-fixing platform 52. A length-fixing motor (not shown in the figure) is fixedly mounted under the length-fixing platform 52. The length-fixing motor is fixedly connected to the rotating shaft of the length-fixing baffle plate 54, driving the length-fixing baffle plate 54 to rotate in the horizontal direction, so that the length-fixing baffle plate 54 stops the pipe according to the preset length. A positioning disc 55 is fixedly mounted on the rotating shaft of the length-fixing stop plate 54, and a length-fixing cylinder 56 is fixedly mounted on the length-fixing platform 52. A positioning hook 57 is hinged to the front end of the length-fixing cylinder 56. The positioning hook 57 is rotatably mounted on the length-fixing platform 52. The extension and retraction of the length-fixing cylinder 56 causes the hook to rotate and position the positioning disc 55. Furthermore, a buffer mechanism 58 is fixedly mounted on the side of the length-fixing stop plate 54 near the hot saw cutting mechanism 4. The buffer mechanism 58 includes a buffer plate 581, which is connected to the length-fixing stop plate 54 via a buffer element 582. Buffer limiting rods 583 are fixedly mounted on both sides of the buffer element 582 on the buffer plate 581. The buffer limiting rods 583 extend and pass through the length-fixing stop plate 54, ensuring that the buffer mechanism 58 always maintains stable operation. In this embodiment, the buffer element 582 is a spring buffer.

[0049] like Figure 7 and Figure 8 As shown, a feeder 23 is rotatably installed at the end of the roller conveyor 2 near the processing unit 6. The feeder 23 includes a right-angled block. One end of the right-angled block is rotatably installed on the frame of the roller conveyor 2. A feeder cylinder 24 is fixedly installed on the frame below the right-angled block. The air rod of the feeder cylinder 24 is hinged to the right-angle point of the right-angled block. The feeder 23 is driven to reciprocate by the extension and retraction of the feeder cylinder 24, so that the pipe is orderly fed to the buffer unit 61.

[0050] The buffer unit 61 is located between the end and the processing unit 6 and is used to buffer the quantity of pipes before the processing unit 6. The buffer unit 61 includes a buffer frame 611 and a stepped feeder 612. The stepped feeder 612 and the stepped feeder 111 have the same structure and are used to lift the pipes to the processing unit 6.

[0051] The processing unit 6 includes a stepping transfer mechanism 62, a chamfering mechanism 63, a weld seam recognition mechanism 64, and a punching mechanism 65. The chamfering mechanism 63 is located before the weld seam recognition mechanism 64, and the punching mechanism 65 is located after the weld seam recognition mechanism 64. Positioning mechanisms 66 are fixedly installed before both the chamfering mechanism 63 and the weld seam recognition mechanism 64. The two positioning mechanisms 66 have the same structure. The stepping transfer mechanism 62 is located below the chamfering mechanism 63, the weld identification mechanism 64, and the punching mechanism 65. It achieves step-by-step conveying of the pipe through horizontal and vertical movements. The positioning mechanism 66 achieves positioning by clamping both ends of the pipe, and its two ends are cylinder-driven clamping plate structures. The chamfering mechanism 63 includes a claw disk 631 and a chamfering motor 632 that drives the claw disk 631. A milling cutter is fixedly installed on the claw disk 631 for trimming the cutting burrs at both ends of the pipe. The weld identification mechanism 64 identifies the weld by measuring the pipe wall thickness with a grating ruler. Specifically, it includes a square pipe weld identification mechanism 642 and a round pipe weld identification mechanism 643. The square pipe weld identification mechanism 642 includes a perforated turntable gear 64. 1. The perforated turntable gear 641 can be driven by cylinders and racks to move along the axial and circumferential directions of the tube. The perforated turntable gear 641 has a square hole. Two cylinders are fixedly installed on the surface of the perforated turntable gear 641. The cylinders are respectively set on the adjacent sides of the square hole to limit the tube and measure the thickness between the two opposite walls of the horizontal square tube to determine whether there is a weld. If there is a weld, the perforated turntable gear 641 rotates 90° to make the weld vertical. The round tube recognition includes a grating ruler structure located at both ends of the tube and rollers for supporting the tube. After the weld is detected, the rollers guide the tube to rotate to avoid the influence of the weld during punching. The punching mechanism 65 is used to punch holes in the horizontal direction at both ends of the tube.

[0052] Multiple processing units 6 can be arranged in parallel to enable synchronous processing of pipes and improve production efficiency. Furthermore, the aforementioned stepping transfer mechanism 62, positioning mechanism 66, weld seam recognition mechanism 64, and punching mechanism 65 are all existing technologies, or conventional modifications made to existing technologies, and will not be described in detail here.

[0053] like Figure 9 and Figure 10As shown, the unloading mechanism 7 includes an unloading conveyor line 71, which has multiple unloading conveyor lines, and the tubing can be transported along its length. The unloading conveyor line 71 includes several unloading rollers 72, which are driven by an unloading motor 73. Its structure is the same as that of the roller conveyor line 2. A feeder 74 is provided between the unloading rollers 72 corresponding to the processing unit 6. The feeder 74 has the same structure and driving method as the feeder 13, so that defective products are fed to the scrap rack 8. Along the running direction of the unloading conveyor line 71, a transition piece 76 is fixedly installed on the unloading conveyor line 71 at its end. The transition piece 76 has a clearance hole for the feeder 4 75 to rotate. The feeder 4 75 has the same driving method as the feeder 13. Its structure is a radial three-claw structure. By driving it to rotate forward and backward, the finished product is fed to the finished product areas 9 on both sides.

[0054] All of the aforementioned mechanical equipment and structures are controlled by an external PLC, enabling the various mechanisms to work in coordination.

[0055] The workflow of this solution is as follows: The preceding process transports the pipes to the upper feeding rack. Using a motor-driven chain, a stepped feeder 111 separates the bundled pipes one by one, and then transports them via a chain conveyor 12 and a feeder 13, sending the pipes to be cut to the roller conveyor line 2, completing the raw material loading. The roller conveyor line 2, using a motor-driven chain or belt, transports the pipes forward into the side clamping roller conveyor 41, and then into the hot saw cutting mechanism 4. After being preset to a certain length by the length-setting mechanism 5, the pipes are stopped by the buffer mechanism 58, and then the hot saw cutting mechanism 4 cuts the pipes. The cut pipes continue to be transported via the roller conveyor line 2, and then fed to the buffer unit 61 by the feeder 23. They then enter the processing unit 6 in an orderly manner via the stepping transfer mechanism 62, and are processed sequentially by the chamfering mechanism 63, the weld identification mechanism 64, and the punching mechanism 65 before entering the unloading mechanism 7. Finally, good and defective products are sorted and stored.

[0056] The above-described preferred embodiments of the present invention are provided for guidance, but it will be apparent to those skilled in the art that such embodiments are provided merely by way of example. Many modifications, alterations, and alternatives will arise in the mind and spirit of the present invention without departing from its intent. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. An automatic hot saw cutting and punching line equipment, characterized in that, include: The system consists of a loading rack (1), a roller conveyor line (2), a hot saw cutting mechanism (4), a length-fixing mechanism (5), a processing unit (6), and an unloading mechanism (7). The loading rack (1) is used to orderly transport pipes to the roller conveyor line (2). The roller conveyor line (2) is used to transport pipes to the processing unit (6). The roller conveyor line (2) is equipped with a hot saw cutting mechanism (4) for cutting pipes. A length-fixing mechanism (5) is provided between the hot saw cutting mechanism (4) and the processing unit (6). The length-fixing mechanism (5) is used to pre-set the length of the pipes. The length of the material cutting, the processing unit (6) includes a stepping transfer mechanism (62), a weld seam recognition mechanism (64) and a punching mechanism (65). The stepping transfer mechanism (62) is used for stepping to move the pipe for processing. The weld seam recognition mechanism (64) is used to detect and adjust the weld seam position of the pipe fed into the processing unit (6). The punching mechanism (65) is used to punch holes in the pipe after the weld seam position is adjusted. The output end of the processing unit (6) is provided with a feeding mechanism (7). The feeding mechanism (7) is used to feed the pipe after processing.

2. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: The feeding rack (1) includes a stepped feeding rack body (11), on which a stepped feeding device (111) and a chain conveyor mechanism (12) are installed. The chain conveyor mechanism (12) is equipped with a feeder (13) at one end near the roller conveyor line (2). The stepped feeding device (111) is used to lift the pipe from the feeding area to the chain conveyor mechanism (12), and the feeder (13) is used to orderly feed the pipe on the chain conveyor mechanism (12) to the roller conveyor line (2).

3. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: The roller conveyor line (2) includes several conveying rollers (21), which are driven by a conveying motor (22). A pressure limiting mechanism (3) is provided above the roller conveyor line (2), which is used to limit the pressure when conveying pipes.

4. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: The length-fixing mechanism (5) is located on one side of the roller conveyor line (2), including a length-fixing frame (51), a length-fixing platform (52) is slidably mounted on the length-fixing frame (51), a translation motor (53) is fixedly mounted on the length-fixing platform (52), the translation motor (53) is used to drive the length-fixing platform (52) to translate on the length-fixing frame (51), a length-fixing baffle (54) is rotatably mounted on the length-fixing platform (52), the length-fixing baffle (54) is driven to rotate by the length-fixing motor, so that the length-fixing baffle (54) stops the pipe according to the preset length.

5. The automatic hot saw cutting and punching line equipment according to claim 4, characterized in that: A positioning plate (55) is fixedly installed on the rotating shaft of the fixed length stop plate (54), and a fixed length cylinder (56) is fixedly installed on the fixed length platform (52). A positioning hook (57) is hinged to the front end of the fixed length cylinder (56). The positioning hook (57) is rotatably installed on the fixed length platform (52). The positioning hook (57) rotates to position the positioning plate (55) by extending and retracting the fixed length cylinder (56).

6. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: At the end of the roller conveyor (2) near the processing unit (6), a feeder (23) is rotatably installed. The feeder (23) is driven to rotate reciprocally by the feeder cylinder (24), so that the pipe is orderly fed to the buffer unit (61). The buffer unit (61) includes a buffer frame (611) and a stepped feeder (612). The stepped feeder (612) is used to lift the pipe to the processing unit (6).

7. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: A positioning mechanism (66) is provided in front of the weld identification mechanism (64). The positioning mechanism (66) is used to position the two ends of the pipe, which facilitates positioning processing.

8. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: The processing unit (6) also includes a chamfering mechanism (63), which is located before the weld identification mechanism (64). The chamfering mechanism (63) includes a claw plate (631) and a chamfering motor (632) for driving the claw plate (631). A milling cutter is fixedly installed on the claw plate (631) for trimming the cutting burrs at both ends of the pipe. A positioning mechanism (66) is installed in front of the chamfering mechanism (63) for positioning both ends of the pipe to facilitate positioning processing.

9. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: The feeding mechanism (7) includes a feeding conveyor line (71), which includes several feeding rollers (72). The feeding rollers (72) are driven by a feeding motor (73). A feeder three (74) and a feeder four (75) are also provided between the feeding rollers (72). The feeder three (74) is used to feed the waste material to the waste rack (8), and the feeder four (75) is used to feed the finished material to the finished product area (9).

10. The automatic hot saw cutting and punching line equipment according to claim 1, characterized in that: A side clamping roller conveyor (41) is fixedly installed at the feed inlet of the hot saw cutting mechanism (4). The side clamping roller conveyor (41) includes roller bearings (411) symmetrically installed on both sides of the feed inlet of the hot saw cutting mechanism (4). A guide block (412) is provided at the front end of the roller bearing (411). The guide block (412) is used to guide the pipe into the roller bearings (411) and into the hot saw cutting mechanism (4) under the clamping of the roller bearings (411) on both sides.

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