A stainless steel pipe equidistant cutting device

Abstract

The present application relates to pipe cutting technical field, specifically disclose a kind of stainless steel pipe equidistance cutting device, including lower bottom plate, the upper end outer surface of lower bottom plate is rotationally connected with transmission roller group by pivot, each group of transmission roller group includes two groups of conveying rollers, the upper end outer surface of conveying roller is placed with pipe material to be cut, the upper end outer surface of lower bottom plate is fixedly connected with hydraulic cylinder, the output end of hydraulic cylinder is connected with saw blade that pipe material is cut, by being provided with lower bottom plate and upper bottom plate, cooperate four groups of transmission roller group, four pipes can be simultaneously carried, then by hydraulic cylinder drive jack drives saw blade up and down movement, four pipes are cut, while cutting by drive motor control transmission belt one and transmission belt two, force the conveying roller inside four groups of transmission roller group to rotate, again with extrusion wheel one and extrusion wheel two cooperation, when pipe material is cut, pipe material is in the state of rotation, can greatly improve the cutting efficiency of pipe material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe cutting, in particular to a stainless steel pipe equidistant cutting device. BACKGROUND

[0002] Stainless steel pipes are widely used in building decoration, petroleum and chemical industry, food and medicine, mechanical equipment, automobile manufacturing, furniture manufacturing and many other fields due to their excellent corrosion resistance, high strength and aesthetic appearance. In these applications, the pipes usually need to be accurately cut to a specific length according to design drawings or installation requirements. Therefore, efficient, accurate and high-quality cutting is a crucial and ubiquitous process in the processing of stainless steel pipes.

[0003] When cutting stainless steel pipes, the sawing method is usually used. However, sawing cuts a single pipe by using a high-speed saw blade, which can only cut a section of the pipe at a time, resulting in low cutting efficiency. When facing a large number of pipes, more processing time is required.

[0004] Therefore, we propose a stainless steel pipe equidistant cutting device. SUMMARY

[0005] The purpose of the present application is to provide a stainless steel pipe equidistant cutting device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical solution: a stainless steel pipe equidistant cutting device, comprising a lower base plate, the upper end outer surface of the lower base plate is rotatably connected with a transmission roller group through a rotating shaft, each transmission roller group comprises two sets of conveying rollers, and the upper end outer surface of the conveying rollers is placed with a pipe to be cut.

[0007] The lower base plate is fixedly connected with a hydraulic cylinder on the upper end outer surface, the output end of the hydraulic cylinder is connected with a saw blade for cutting the pipe, the number of transmission roller groups is two, and they are symmetrically distributed with the hydraulic cylinder, the axis of the saw blade and the axis of the hydraulic cylinder are in the same vertical plane.

[0008] The end of the transmission roller group away from the saw blade is provided with a driving motor that can drive the conveying rollers to rotate, the upper end of the lower base plate is connected with an upper base plate through a support leg, the saw blade is located between the upper base plate and the lower base plate, the structure of the upper base plate is consistent with that of the lower base plate, and the surface of the upper base plate is also provided with a transmission roller group, and the middle region of the upper base plate is connected with a positive pressure assembly for limiting the pipe placed on the surface of the upper base plate.

[0009] A guide rod is fixedly connected between the upper base plate and the lower base plate. A push plate is sleeved on the outer surface of the guide rod. A guide groove is opened on the surface of the push plate. The guide rod passes through the guide groove. A cutting motor is fixedly connected to the upper outer surface of the push plate. The output end of the cutting motor is fixedly connected to the saw blade. A protective frame is sleeved on the outer surface of the saw blade. A push rod is rotatably connected to the output end of the hydraulic cylinder through a rotating shaft. The end of the push rod away from the hydraulic cylinder is rotatably connected to the push plate.

[0010] The push plate has a spring rod fixedly connected to its lower outer surface, and a pressure plate fixedly connected to its lower end. The pressure plate has a cavity on its surface, and a compression roller and a compression roller are rotatably connected inside the cavity via a rotating shaft. The compression rollers are staggered, and the intersection of the compression rollers is aligned with the axis of the tube placed on the conveyor roller assembly.

[0011] The lower base plate has a drive motor fixedly connected to the end of its upper outer surface away from the saw blade. The output end of the drive motor is fixedly connected to a drive wheel, and a transmission belt is fitted onto the annular outer surface of the drive wheel. The center positions of the lower and upper base plates are both rotatably connected to drive wheels via shafts. Drive wheels are fitted onto the transmission belts. The end of the conveyor roller away from the push plate is fixedly connected to a transmission wheel, and a transmission belt is fitted onto the annular outer surface of the transmission wheel. The transmission belt is driven by the drive wheel.

[0012] The transmission belt one and transmission belt two are designed in an "I" shape to drive four sets of conveying rollers, all of which are driven on the inner side.

[0013] The positive pressure component includes a top plate, which is fixedly connected to the upper outer surface of the push plate. A support plate is fixedly connected to the lower outer surface of the upper base plate. A rotating groove is formed on the lower outer surface of the support plate. A rotating cylinder is rotatably connected to the rotating groove via a rotating shaft. A lever is connected to the surface of the rotating cylinder. One end of the lever is close to the top plate, and the other end is rotatably connected to a telescopic rod via a rotating shaft. A telescopic groove is formed at a corresponding position on the upper base plate and the telescopic rod. The telescopic rod passes through the telescopic groove. A positive pressure plate is fixedly connected to the upper end of the telescopic rod. The positive pressure plate and the telescopic rod are designed in a T-shape. A limit block is fixedly connected to the outer surface of the telescopic rod. A second spring rod is fixedly connected to the upper outer surface of the limit block. The upper end of the second spring rod is fixedly connected to the upper base plate.

[0014] The rotating drum has a sliding groove extending through its annular outer surface, and the lever can slide inside the sliding groove.

[0015] The outer surface of the lower end of the positive pressure plate is also fixedly connected with a spring rod one at the corresponding position of the conveying roller, the outer surface of the lower end of the spring rod one is fixedly connected with a pressing plate two, the pressing plate two is the same structure as the pressing plate one, and the inside of the pressing plate two is also rotatably connected with the extrusion wheel one and the extrusion wheel two.

[0016] The inside of the telescopic rod and the positive pressure plate is provided with a T-shaped transmission cavity, the outer surface of the upper end of the pressing plate two is fixedly connected with a back pressure plate, the outer surface of the lower end of the positive pressure plate is fixedly connected with a back pressure sleeve at the corresponding position of the back pressure plate, the back pressure plate is located in the inside of the back pressure sleeve, the back pressure sleeve is communicated with the transmission cavity, the inside surface of the transmission cavity is fixedly connected with a thrust spring at the lower end, and the upper end of the thrust spring is fixedly connected with a piston plate.

[0017] The side of the telescopic rod is provided with a through groove, the inside of the through groove is slidably connected with a limiting plate, the limiting plate is matched with the transmission cavity, the top block is fixedly connected with the limiting plate at the corresponding position, the top block is of a triangular structure, and the elastic belt is fixedly connected between the top block and the limiting plate.

[0018] The present application has at least the following advantages:

[0019] By setting the lower bottom plate and the upper bottom plate, cooperating with the four groups of conveying roller groups, four pipes can be simultaneously carried, and then the hydraulic cylinder drives the ejector rod to drive the saw blade to move up and down, so that the four pipes are cut, and at the same time, the driving motor controls the transmission belt one and the transmission belt two to rotate the conveying rollers in the four groups of conveying roller groups, and then cooperates with the extrusion wheel one and the extrusion wheel two, so that the pipes are in a rotating state during cutting, which can greatly improve the cutting efficiency of the pipes.

[0020] The pipes with different diameters can be cut by cooperating the pressing plate two and the pressing plate one, which greatly improves the versatility of the equipment, reduces the cost of the redundant production line, and realizes the up-down movement of the saw blade during cutting the pipes, so that the pressing plate two can be locked in advance by cooperating the lever, the top plate, the back pressure sleeve and the back pressure plate, further increasing the limiting force of the pipes, and ensuring the stability of the pipes on the upper bottom plate during cutting. DRAWINGS

[0021] Figure 1 It is a schematic diagram of the whole structure of the present application;

[0022] Figure 2 It is a schematic diagram of the structure of the conveying roller group of the present application;

[0023] Figure 3 It is a schematic diagram of the structure of the hydraulic cylinder and the ejector rod of the present application;

[0024] Figure 4Structure diagram of the first compression plate of the application;

[0025] Figure 5 Structure diagram of the first compression plate of the application;

[0026] Figure 6 Structure diagram of the first compression plate of the application;

[0027] Figure 7 Structure diagram of the first compression plate of the application;

[0028] Figure 8 Structure diagram of the first compression plate of the application;

[0029] Figure 9 Structure diagram of the first compression plate of the application; Figure 8 Structure diagram of the first compression plate of the application;

[0030] Figure 10 Structure diagram of the first compression plate of the application;

[0031] Figure 11 Structure diagram of the first compression plate of the application;

[0032] Figure 12 Structure diagram of the first compression plate of the application;

[0033] Figure: 1, the lower bottom plate; 11, the upper bottom plate; 12, the transmission roller group; 121, the conveying roller; 20, the push plate; 21, the cutting motor; 23, the saw blade; 24, the hydraulic cylinder; 25, the guide groove; 26, the guide rod; 27, the top rod; 40, the drive motor; 41, the drive wheel one; 42, the transmission belt one; 43, the drive wheel two; 44, the transmission belt two; 45, the transmission wheel; 50, the first compression plate; 51, the first extrusion wheel; 52, the second extrusion wheel; 53, the cavity; 54, the spring rod one; 55, the second compression plate; 60, the positive pressure assembly; 61, the top plate; 62, the telescopic groove; 63, the support plate; 64, the lever; 65, the rotating drum; 651, the sliding groove; 652, the rotating groove; 66, the telescopic rod; 67, the spring rod two; 68, the limiting block; 69, the positive pressure plate; 70, the transmission cavity; 71, the piston plate; 72, the thrust spring; 73, the limiting plate; 74, the elastic belt; 75, the top block; 76, the back pressure sleeve; 77, the back pressure plate; 78, the through groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0035] Please refer to Figures 1-12 The present application provides a technical solution:

[0036] A stainless steel pipe equidistant cutting device, comprising a lower bottom plate 1, the outer surface of the upper end of the lower bottom plate 1 is rotatably connected with a transmission roller group 12, each group of the transmission roller group 12 comprises two groups of conveying rollers 121, the outer surface of the upper end of the conveying roller 121 is placed with a pipe to be cut, the pipe is limited by the two groups of conveying rollers 121, which facilitates cutting of the pipe;

[0037] The outer surface of the upper end of the lower bottom plate 1 is fixedly connected with a hydraulic cylinder 24, the output end of the hydraulic cylinder 24 is connected with a saw blade 23 for cutting the pipe, the number of the transmission roller group 12 is two, and the hydraulic cylinder 24 is symmetrically distributed, the axis of the saw blade 23 and the axis of the hydraulic cylinder 24 are in the same vertical plane, and the cutting track of the saw blade 23 can cover the pipe to be cut placed on the transmission roller group 12, the pipe is cut by driving the saw blade 23 to move up and down by the hydraulic cylinder 24, two groups of pipes can be cut on the surface of the lower bottom plate 1 at the same time by arranging two groups of conveying rollers 121 on both sides to cooperate with the saw blade 23, and the cutting efficiency is increased;

[0038] Please refer to Figure 2 、 3 The end of the transmission roller group 12 away from the saw blade 23 is provided with a driving motor 40 which can drive the conveying roller 121 to rotate, the upper end of the lower bottom plate 1 is connected with an upper bottom plate 11 through a support leg, the saw blade 23 is located between the upper bottom plate 11 and the lower bottom plate 1, the structure of the upper bottom plate 11 is consistent with that of the lower bottom plate 1, and the surface of the upper bottom plate 11 is also provided with a transmission roller group 12, the middle region of the upper bottom plate 11 is connected with a positive pressure assembly 60 for limiting the pipe placed on the surface of the upper bottom plate 11, the pipe rotates by itself when the saw blade 23 cuts, so as to reduce the displacement of the saw blade 23, and the cutting efficiency is further improved, by arranging the positive pressure assembly 60 and the upper bottom plate 11, the surface of the upper bottom plate 11 is also placed with the pipe, the pipe on the surface of the upper bottom plate 11 can be cut by the upward movement of the saw blade 23, and the pipe on the surface of the lower bottom plate 1 is cut when the saw blade 23 moves downward, by the mutual design of the above structure, the upward and downward displacement of the saw blade 23 is fully utilized, and four groups of pipes are cut in a short time, which greatly improves the cutting efficiency.

[0039] Please refer to Figure 2 、 3A guide rod 26 is fixedly connected between the upper base plate 11 and the lower base plate 1. A push plate 20 is sleeved on the outer surface of the guide rod 26. A guide groove 25 is opened on the surface of the push plate 20, and the guide rod 26 passes through the guide groove 25. A cutting motor 21 is fixedly connected to the upper outer surface of the push plate 20. The output end of the cutting motor 21 is fixedly connected to the saw blade 23. A protective frame is sleeved on the outer surface of the saw blade 23. The output end of the hydraulic cylinder 24 is rotatably connected to a top rod 27 through a rotating shaft. The end of the top rod 27 away from the hydraulic cylinder 24 is rotatably connected to the push plate 20. The output end of the hydraulic cylinder 24 pushes the top rod 27, causing the top rod 27 to push the push plate 20 to slide along the guide rod 26 through the guide groove 25. The cutting motor 21 drives the saw blade 23 to move and cut the pipe.

[0040] Please see Figure 4 , 5 A spring rod 54 is fixedly connected to the lower outer surface of the push plate 20. A pressing plate 50 is fixedly connected to the lower end of the spring rod 54. A cavity 53 is opened on the surface of the pressing plate 50. An extrusion roller 51 and an extrusion roller 52 are rotatably connected inside the cavity 53 via a rotating shaft. The extrusion rollers 51 and 52 are staggered. The intersection of the extrusion rollers 51 and 52 is aligned with the axis of the tube placed on the conveyor roller group 12. A pressing plate 50 is set at the upper end of the conveyor roller 121. The tube placed between the two conveyor rollers 121 is pressed by the extrusion rollers 51 and 52. During cutting, the vibration of the tube can be reduced, the cutting progress can be improved, and the cutting stability can be guaranteed.

[0041] Please see Figure 3 A drive motor 40 is fixedly connected to the upper outer surface of the lower base plate 1, away from the saw blade 23. A drive wheel 41 is fixedly connected to the output end of the drive motor 40. A transmission belt 42 is fitted onto the annular outer surface of the drive wheel 41. Drive wheels 43 are rotatably connected to the center positions of both the lower base plate 1 and the upper base plate 11 via rotating shafts. Drive wheels 43 are fitted onto transmission belts 42. A transmission wheel 45 is fixedly connected to the end of the conveyor roller 121 away from the push plate 20. A transmission belt 44 is fitted onto the annular outer surface of the transmission wheel 45. The transmission belt 44 is driven by drive wheels 43. 3. Drive: The transmission belt 42 and transmission belt 44 are designed in an "I" shape to drive the four sets of conveying rollers 121. The conveying rollers 121 are all driven on the inner side, which can avoid the transmission belt 44 from contacting the pipe. Through the transmission belt 42 and the two transmission belts 44, the drive motor 40 drives the four sets of conveying rollers 121 through the drive wheel 41. Thus, when cutting the pipe, all four sets of pipes can rotate, thereby quickly completing the pipe cutting. The transmission belt 42 and transmission belt 44 can be toothed or chained.

[0042] Please refer to Figures 7-9 , the positive pressure assembly 60 comprises a top plate 61 fixedly connected to the outer surface of the upper end of the push plate 20, the outer surface of the lower end of the upper bottom plate 11 is fixedly connected with a support plate 63, a rotating groove 652 is formed in the outer surface of the lower end of the support plate 63, a rotating cylinder 65 is rotatably connected inside the rotating groove 652 through a rotating shaft, a lever 64 is connected to the surface of the rotating cylinder 65, one end of the lever 64 is close to the top plate 61, the other end is rotatably connected with an extension rod 66 through a rotating shaft, the upper bottom plate 11 is provided with an extension slot 62 at the corresponding position of the extension rod 66, the extension rod 66 penetrates through the extension slot 62, the upper end of the extension rod 66 is fixedly connected with a positive pressure plate 69, the positive pressure plate 69 and the extension rod 66 are integrally designed in T-shaped structure, the outer surface of the extension rod 66 is fixedly connected with a limiting block 68, the upper end of the limiting block 68 is fixedly connected with a spring rod two 67, the spring rod two 67 is convenient for automatic reset of the extension rod 66, the upper end of the spring rod two 67 is fixedly connected with the upper bottom plate 11, when the push plate 20 moves upward under the pushing of the top rod 27, the top plate 61 will contact with the lever 64, forcing the lever 64 to rotate around the rotating cylinder 65 as the fulcrum, the other end of the lever 64 pulls the extension rod 66 and the positive pressure plate 69 to move downward, extruding and limiting the pipe placed on the surface of the upper bottom plate 11, ensuring that the saw blade 23 can effectively and stably cut the pipe when moving upward, ensuring the stability of cutting.

[0043] Please refer to Figure 9 , 10 , the annular outer surface of the rotating cylinder 65 is provided with a sliding groove 651, the lever 64 can slide in the sliding groove to avoid locking of the lever 64 when rotating, when the push plate 20 moves to a certain height with the top plate 61, the angle of the lever 64 has been deflected to the maximum, at this time the edge surface of the top plate 61 will contact with the end of the lever 64, at this time the top plate 61 and the saw blade 23 continue to move upward, at this time the extension rod 66 and the positive pressure plate 69 are limited by the limiting plate 73, the support plate 63 and the length of the lever 64, locking the positive pressure plate 69, increasing the stability of the overall structure, through the above structure, the downward movement of the extension rod 66 and the positive pressure plate 69 is divided into two movements with the upward movement of the push plate 20, the initial upward movement of the push plate 20 will drive the extension rod 66 and the positive pressure plate 69 to move downward, after moving to a certain distance, the sliding distance of the positive pressure plate 69 is locked, the saw blade 23 continues to move upward with the push plate 20 to cut the pipe, the upper bottom plate 11 can place the pipes with different sizes from the lower bottom plate 1, and at the same time the pipes are cut by the saw blade 23, increasing the versatility of the equipment, the pipes with different sizes can be cut, reducing the cost of another production line.

[0044] Please refer to Figure 11The outer surface of the lower end of the positive pressure plate 69 is also fixedly connected with a spring rod one 54 corresponding to the position of the conveying roller 121, the outer surface of the lower end of the spring rod one 54 is fixedly connected with a pressing plate two 55, the pressing plate two 55 is the same structure as the pressing plate one 50, and the inside is also rotatably connected with the extrusion wheel one 51 and the extrusion wheel two 52. In order to further increase the versatility, the pipe placed on the surface of the conveying roller 121 of the upper bottom plate 11 can be pressed by the pressing plate two 55, the spring rod one 54 provides the downward pressure, and the extrusion wheel one 51 and the extrusion wheel two 52 are guaranteed to be attached to the annular outer surface of the pipe.

[0045] Please refer to Figure 8 、 11 The inside of the telescopic rod 66 and the positive pressure plate 69 is provided with a T-shaped transmission cavity 70, the upper end of the outer surface of the pressing plate two 55 is fixedly connected with a back pressure plate 77, the lower end of the outer surface of the positive pressure plate 69 is fixedly connected with a back pressure sleeve 76 corresponding to the position of the back pressure plate 77, the back pressure plate 77 is located inside the back pressure sleeve 76, the back pressure sleeve 76 is communicated with the transmission cavity 70, the lower end of the inner surface of the transmission cavity 70 is fixedly connected with a thrust spring 72, the upper end of the thrust spring 72 is fixedly connected with a piston plate 71, when the pressing plate two 55 extrudes the pipe, with the displacement of the positive pressure plate 69, the spring rod one 54 is in a compressed state, the back pressure plate 77 slides to the inside of the back pressure sleeve 76 while extruding the hydraulic oil in the transmission cavity 70, the hydraulic oil will extrude the piston plate 71 along the transmission cavity 70 to force the thrust spring 72 to be in a compressed state, one side of the telescopic rod 66 is provided with a through groove 78, the inside of the through groove 78 is slidably connected with a limiting plate 73, the limiting plate 73 and the transmission cavity 70 are matched with each other, the upper bottom plate 11 is fixedly connected with a top block 75 corresponding to the position of the limiting plate 73, the top block 75 is a triangular structure, the limiting plate 73 and the top block 75 are fixedly connected with an elastic belt 74, the elastic belt 74 is convenient for the resetting of the limiting plate 73, the telescopic rod 66 is downwardly displaced, the limiting plate 73 is extruded by the top block 75, the inside of the transmission cavity 70 is forced to be in a closed chamber for a short time, the hydraulic oil is difficult to compress, the pressing plate two 55 is limited and locked, the number of the pressing plate two 55 is two, through the above structure, the two groups of pressing plate two 55 can limit the pipes of different sizes at the same time, and then the pipes are cut by the saw blade 23, through the cooperation of the whole structure, the conveying roller 121 on the lower bottom plate 1 and the conveying roller 121 on the upper bottom plate 11 can limit the pipes of different sizes, and the pipes are cut by the saw blade 23, so that the pipe cutting efficiency can be greatly improved, and the cost of multiple production lines can be reduced, and the pipe cutting efficiency can be improved to the greatest extent when the pipes of the same size are cut.

[0046] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0047] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A stainless steel pipe equal cutting device comprising a lower base plate (1), characterized in that: The upper end outer surface of the lower bottom plate (1) is rotatably connected with a transmission roller group (12) through a rotating shaft, each group of the transmission roller group (12) comprises two groups of conveying rollers (121), and the upper end outer surface of the conveying roller (121) is placed with a pipe material to be cut; The upper end outer surface of the lower bottom plate (1) is fixedly connected with a hydraulic cylinder (24), the output end of the hydraulic cylinder (24) is connected with a saw blade (23) for cutting the pipe material, the number of the transmission roller group (12) is two, and the transmission roller group (12) is symmetrically distributed with the hydraulic cylinder (24), and the axis of the saw blade (23) and the axis of the hydraulic cylinder (24) are in the same vertical plane; The end, away from the saw blade (23), of the transmission roller group (12) is provided with a driving motor (40) capable of driving the conveying roller (121) to rotate, the upper end of the lower bottom plate (1) is connected with an upper bottom plate (11) through a supporting leg, the saw blade (23) is located between the upper bottom plate (11) and the lower bottom plate (1), the structure of the upper bottom plate (11) is consistent with that of the lower bottom plate (1), and the surface of the upper bottom plate (11) is also provided with the transmission roller group (12), and the middle region of the upper bottom plate (11) is connected with a positive pressure assembly (60) for limiting the pipe material placed on the surface of the upper bottom plate (11); The upper bottom plate (11) and the lower bottom plate (1) are fixedly connected with a guide rod (26), the outer surface of the guide rod (26) is sleeved with a push plate (20), the surface of the push plate (20) is provided with a guide groove (25), the guide rod (26) penetrates through the guide groove (25), and the upper end outer surface of the push plate (20) is fixedly connected with a cutting motor (21); The output end of the hydraulic cylinder (24) is rotatably connected with a jacking rod (27) through a rotating shaft, and the end, away from the hydraulic cylinder (24), of the jacking rod (27) is rotatably connected with the push plate (20); The positive pressure assembly (60) comprises a top plate (61), the top plate (61) is fixedly connected to the upper end outer surface of the push plate (20), the lower end outer surface of the upper bottom plate (11) is fixedly connected with a supporting plate (63), the lower end outer surface of the supporting plate (63) is provided with a rotating groove (652), the rotating groove (652) is rotatably connected with a rotating drum (65) through a rotating shaft, the surface of the rotating drum (65) is connected with a lever (64), one end of the lever (64) is close to the top plate (61), when the push plate (20) moves upward under the pushing of the jacking rod (27), the top plate (61) will be in contact with the lever (64), so that the lever (64) rotates around the rotating drum (65) as a fulcrum, the other end is rotatably connected with an extension rod (66) through a rotating shaft, the upper bottom plate (11) is provided with an extension groove (62) at a position corresponding to the extension rod (66), the extension rod (66) penetrates through the extension groove (62), the upper end of the extension rod (66) is fixedly connected with a positive pressure plate (69), the positive pressure plate (69) and the extension rod (66) are integrally designed in a T-shaped structure, the outer surface of the extension rod (66) is fixedly connected with a limiting block (68), the upper end outer surface of the limiting block (68) is fixedly connected with a second spring rod (67), and the upper end of the second spring rod (67) is fixedly connected with the upper bottom plate (11).

2. The apparatus according to claim 1, wherein: The output end of the cutting motor (21) is fixedly connected to the saw blade (23), and the outer surface of the saw blade (23) is covered with a protective frame.

3. The apparatus according to claim 2, wherein: A spring rod (54) is fixedly connected to the lower outer surface of the push plate (20). A pressure plate (50) is fixedly connected to the lower end of the spring rod (54). A cavity (53) is opened on the surface of the pressure plate (50). An extrusion roller (51) and an extrusion roller (52) are rotatably connected inside the cavity (53) via a rotating shaft. The extrusion rollers (51) and (52) are staggered. The intersection of the extrusion rollers (51) and (52) is aligned with the axis of the tube placed on the transmission roller group (12).

4. The apparatus for cutting stainless steel pipes of claim 2, wherein: A drive motor (40) is fixedly connected to the end of the upper outer surface of the lower base plate (1) away from the saw blade (23). A drive wheel (41) is fixedly connected to the output end of the drive motor (40). A transmission belt (42) is sleeved on the annular outer surface of the drive wheel (41). A drive wheel (43) is rotatably connected to the center of both the lower base plate (1) and the upper base plate (11) via a rotating shaft. The drive wheel (43) is sleeved with the transmission belt (42). A transmission wheel (45) is fixedly connected to the end of the conveying roller (121) away from the push plate (20). A transmission belt (44) is sleeved on the annular outer surface of the transmission wheel (45). The transmission belt (44) is driven by the drive wheel (43).

5. The apparatus for cutting stainless steel pipe to length according to claim 4, wherein: The first transmission belt (42) and the second transmission belt (44) are designed in the shape of an "I" to drive four sets of conveying rollers (121), all of which are driven on the inner side.

6. The apparatus for cutting stainless steel pipe to length according to claim 5, wherein: The annular outer surface of the rotating cylinder (65) is provided with a sliding groove (651), and the lever (64) can slide inside the sliding groove.

7. The apparatus according to claim 6, wherein: A spring rod (54) is fixedly connected to the lower outer surface of the positive pressure plate (69) at the corresponding position of the conveying roller (121). A pressure plate (55) is fixedly connected to the lower outer surface of the spring rod (54). The pressure plate (55) has the same structure as the pressure plate (50), and a compression wheel (51) and a compression wheel (52) are rotatably connected inside it.

8. The apparatus for cutting stainless steel pipe to length according to claim 7, wherein: The telescopic rod (66) and the positive pressure plate (69) have a T-shaped transmission cavity (70) inside. The upper outer surface of the second pressure plate (55) is fixedly connected to a back pressure plate (77). The lower outer surface of the positive pressure plate (69) is fixedly connected to a back pressure sleeve (76) at a position corresponding to the back pressure plate (77). The back pressure plate (77) is located inside the back pressure sleeve (76). The back pressure sleeve (76) communicates with the transmission cavity (70). The lower end of the inner surface of the transmission cavity (70) is fixedly connected to a thrust spring (72). The upper end of the thrust spring (72) is fixedly connected to a piston plate (71).

9. The apparatus for cutting stainless steel pipe to length according to claim 8, wherein: One side of the telescopic rod (66) is provided with a through slot (78), the through slot (78) is slidably connected with a limiting plate (73), the limiting plate (73) and the transmission cavity (70) are matched with each other, the upper bottom plate (11) and the limiting plate (73) are fixedly connected with a top block (75) at the corresponding position, the top block (75) is designed in triangular structure, and the top block (75) and the limiting plate (73) are fixedly connected with an elastic band (74).

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