A PVC pipe laser cutting machine

Abstract

The present invention belongs to the field of laser cutting technology, specifically, a PVC pipe laser cutting machine, including a base frame, the interior of the base frame is used to place the PVC pipe, and one end of the base frame is provided with an adjustment structure. By setting an abutment plate and an auxiliary roller, when the PVC pipe is laser cut, it can be transported by the auxiliary roller, and during the transportation process, the limit ring on one side of the auxiliary roller will also limit the PVC pipe. When the PVC pipe moves to contact with the abutment plate, the sliding block will drive the abutment plate to move toward the inner wall of the PVC pipe. Finally, when the PVC pipe is completely abutted against one side of the adjustment plate, the abutment plate will be completely in contact with the inner wall of the PVC pipe, so that the PVC pipe can be limited and fixed, and the fixed position will not affect the cutting of the laser cutting head. After the cutting is completed, since the cut PVC pipe has no pressure on the abutment plate, the cut PVC pipe will automatically fall off at this time to facilitate the subsequent cutting of the PVC pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting, in particular to a PVC pipe laser cutting machine. Background Art

[0002] PVC pipe, or polyvinyl chloride pipe, is a pipe material made of polyvinyl chloride resin as the main raw material, after adding stabilizers, lubricants, etc., and then pressed at high temperature. During the production process, the length of PVC pipe is usually continuous, but in actual applications, pipes of different lengths are often required. Therefore, continuous PVC pipes can be processed into pipe sections of required lengths through laser cutting to meet different usage requirements.

[0003] A patent application with publication number CN220296176U discloses a limiting device for a PVC pipe laser cutting machine, including a base, a slide rail is installed on the upper surface of the base, and a movable groove is provided inside the slide rail, the sliding groove is arranged on the side of the slide rail, the inner wall of the sliding groove is provided with a rotating groove, and the adjusting block is arranged inside the sliding groove. The device is provided with a spring, and the material hits a fixed plate, and the fixed plate drives the slide plate to push the spring. The spring stores the momentum of the material applied to the fixed plate by contraction, thereby reducing the probability of material rebound, thereby saving material. At the same time, since the spring stores momentum and the protrusion squeezes the circular plate, the circular plate exerts force on the push rod to drive the movable plate to rotate the L-shaped plate, and the L-shaped plate rotates to fix the material, resulting in the material hitting the fixed plate, which greatly prevents the probability of material damage.

[0004] There are still some problems in the actual application of the above scheme. When the above device is cutting PVC pipes, since some PVC pipes are too long, they will be clamped and fixed along the arc surface of the PVC pipe before cutting, and then the clamped PVC pipe will be transported, and finally cut during the transportation process, thereby completing the cutting of the PVC pipe with too long length. However, when the weights at both ends of the clamping part of the PVC pipe are inconsistent, the cut end of the PVC pipe will tilt, and the cut surface of the PVC pipe will also tilt at this time, resulting in the PVC pipe being unable to fit tightly at the interface during subsequent connection, thereby reducing the sealing and causing economic losses. If traditional abutment strips are used to abut and fix the side walls of the PVC pipe, the abutment strips will affect the laser cutting of the PVC pipe. If the volume of the abutment strips is set to be smaller, the fixing effect on the PVC pipe is not good.

[0005] To this end, the present invention provides a PVC pipe laser cutting machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a PVC pipe laser cutting machine described in the present invention includes a base frame, the interior of the base frame is used to place the PVC pipe, one end of the base frame is provided with an adjustment structure, and the adjustment structure is used in conjunction with the PVC pipe, and the upper end of the base frame is provided with a cutting structure; the base frame includes: a placement frame, the interior of the placement frame is used to place the PVC pipe; a limit ring, the limit ring is arranged at one end of the placement frame, and the inner wall of the limit ring is in contact with the PVC pipe; the cutting structure includes: a laser module, the laser module is arranged at the upper end of the PVC pipe; a laser cutting head, the laser cutting head is arranged at the lower end of the laser module; the adjustment structure includes: an operating panel, the operating panel is arranged at one end of the base frame; an adjustment plate, the adjustment plate is fixedly connected to the surface of the operating panel; and an abutment plate, the abutment plate slides on the surface of the adjustment plate, and the abutment plate abuts against the inner wall of the PVC pipe.

[0008] Preferably, the base frame also includes: a sliding groove, which is opened inside the placement frame, and the PVC pipe slides on the inner wall of the sliding groove; the cutting structure also includes: a cutting frame, which is arranged at the upper end of the placement frame, and the cutting frame is connected to the laser cutting head; the adjustment structure also includes: a sliding block, which is slidably connected to the inside of the adjustment plate; a rotating arm, which is rotatably connected to the surface of the sliding block, and the other end of the rotating arm is rotatably connected to the abutment plate; a sliding rod, which is arranged at one end of the abutment plate; a sliding groove, which is opened on the surface of the adjustment plate, and the sliding rod slides on the inner wall of the sliding groove; an abutment sheet, which is slidably connected to the inside of the adjustment plate, and the abutment sheet is connected to the sliding block, and the abutment sheet contacts the PVC pipe; a pressing spring, which is arranged at one end of the sliding block, and the other end of the pressing spring contacts the operating panel.

[0009] Preferably, a buffer pad is provided at one end of the abutment plate close to the inner wall of the PVC pipe, and the buffer pad is in contact with the inner wall of the PVC pipe.

[0010] Preferably, a fixing buckle is provided on the inner wall of the slide groove, and the fixing buckle is in contact with the sliding rod.

[0011] Preferably, an auxiliary roller is rotatably connected inside the limiting ring, and the auxiliary roller contacts the surface of the PVC pipe.

[0012] Preferably, a limiting rod is provided at one end of the adjustment plate, and a pressing spring is sleeved on the arc surface of the limiting rod.

[0013] Preferably, two abutment walls are provided on the upper end of the base frame, and the two abutment walls are in contact with the PVC pipe, and one end of the upper end of the base frame close to the abutment wall is rotatably connected to a plurality of conveying rollers.

[0014] Preferably, one end of the upper surface of the base frame close to the abutting wall is rotatably connected with a plurality of limiting half rings, and the plurality of limiting half rings are in contact with the PVC pipe.

[0015] Preferably, a placing half ring is rotatably connected to one side of the operating panel, and the placing half ring is in contact with the PVC pipe, and the placing half ring is tilted in an initial state.

[0016] Preferably, a coil spring is provided at one end of the placement half ring, and one end of the coil spring is in contact with the operating panel.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The PVC pipe laser cutting machine described in the present invention can be conveyed by the auxiliary roller when the PVC pipe is laser cut by arranging an abutment plate and an auxiliary roller, and during the conveying process, the limit ring on one side of the auxiliary roller will also limit the PVC pipe. When the PVC pipe moves to contact with the abutment plate, the sliding block will drive the abutment plate to move toward the inner wall of the PVC pipe. Finally, when the PVC pipe is completely abutted against one side of the adjustment plate, the abutment plate will be completely in contact with the inner wall of the PVC pipe, so that the PVC pipe can be limited and fixed, and the fixed position will not affect the cutting of the laser cutting head. After the cutting is completed, since the cut PVC pipe has no pressure on the abutment plate, the cut PVC pipe will automatically fall off at this time to facilitate the subsequent cutting of the PVC pipe.

[0019] 2. The PVC pipe laser cutting machine described in the present invention is provided with a placing half ring and a conveying roller. When the cut PVC pipe falls off from the surface of the abutment plate, the PVC pipe will first fall on the inner wall of the placing half ring for placement. At this time, due to the influence of the pressure of the PVC pipe, the placing half ring will rotate, so that the placing half ring will stably place the PVC pipe on the inner wall on the surface of the conveying roller for transportation and collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0022] Figure 2 is a front view of the first embodiment of the present invention;

[0023] Figure 3 is a three-dimensional diagram of the cutting structure of the present invention;

[0024] Figure 4 is a position diagram of the PVC pipe and the abutment plate of the present invention;

[0025] Figure 5 It is a position diagram of the pressing spring and the limiting rod of the present invention;

[0026] Figure 6 It is a connection diagram of the sliding rod and the sliding groove of the present invention;

[0027] Figure 7 yes Figure 6 A partial enlarged view of the middle part;

[0028] Figure 8 It is a position diagram of placing the half ring and the conveying roller of the present invention;

[0029] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0030] In the figure: 1. base frame; 11. placement frame; 12. sliding groove; 13. limiting ring; 14. auxiliary roller; 2. cutting structure; 21. cutting frame; 22. laser cutting head; 23. laser module; 3. adjustment structure; 301. operation panel; 302. sliding block; 303. abutment plate; 304. buffer pad; 305. rotating arm; 306. abutment sheet; 307. adjustment plate; 308. sliding groove; 309. pressing spring; 310. limiting rod; 311. sliding rod; 312. fixing buckle; 313. placement semi-ring; 314. abutment wall; 315. conveying roller; 316. limiting semi-ring; 317. coil spring; 4. PVC pipe. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Embodiment 1: Figures 1 to 9As shown, a PVC pipe laser cutting machine according to an embodiment of the present invention comprises a base frame 1, the interior of the base frame 1 is used to place a PVC pipe 4, one end of the base frame 1 is provided with an adjustment structure 3, and the adjustment structure 3 is used in conjunction with the PVC pipe 4, and the upper end of the base frame 1 is provided with a cutting structure 2; the base frame 1 comprises: a placing frame 11, the interior of the placing frame 11 is used to place the PVC pipe 4; a limiting ring 13, the limiting ring 13 is arranged at one end of the placing frame 11, and the inner wall of the limiting ring 13 is in contact with the PVC pipe 4; the cutting structure 2 comprises: a laser module 23, the laser module 23 is arranged at the upper end of the PVC pipe 4; a laser cutting head 22, the laser cutting head 22 is arranged at the lower end of the laser module 23; the adjustment structure 3 comprises: an operating panel 301, the operating panel 301 is arranged at one end of the base frame 1; an adjustment plate 307, the adjustment plate 307 is fixedly connected to the surface of the operating panel 301; an abutment plate 303, the abutment plate 303 slides on the surface of the adjustment plate 307, and the abutment plate 303 abuts against the inner wall of the PVC pipe 4.

[0033] Specifically, a PVC pipe laser cutting machine of the scheme is used to cut PVC pipes, which are also called PVC pipes 4. When cutting, the PVC pipe 4 needs to be placed inside the placement frame 11, and then the PVC pipe 4 is pushed toward the direction of the operating panel 301, so that the PVC pipe 4 is finally abutted against the operating panel 301. Since one end of the PVC pipe 4 is limited by the limit ring 13, the PVC pipe 4 will be in a horizontal placement state at this time, and then the current is transmitted to the laser module 23. When the current passes through the semiconductor material inside the laser module 23, it will stimulate the electrons and holes in the semiconductor to recombine. This recombination process will release energy and generate photons, which are released from the laser cutting head 22, thereby laser cutting the PVC pipe 4 below, and during the cutting process, the limit ring 13 can be rotated, and the limit ring 13 will rotate with the PVC pipe 4, so that the PVC pipe 4 is cut. However, if the length of the PVC pipe 4 is greater than the length of the base frame 1, the PVC pipe 4 will be close to the operating panel. One end of 301 is tilted, and the cutting surface of the PVC pipe 4 is also tilted at this time, which causes the PVC pipe 4 to be unable to fit tightly at the interface during subsequent connection, thereby reducing the sealing performance. However, if a traditional abutment plate is used to abut and fix the side wall of the PVC pipe 4, the abutment plate may affect the laser beam during laser cutting, and since the surface of the PVC pipe 4 is curved, if the volume of the abutment plate is set to be smaller, the fixing effect of the PVC pipe 4 is not good. For this reason, an abutment plate 303 is designed. When the PVC pipe 4 moves to contact with the operating plate 301, the abutment plate 303 will be located inside the PVC pipe 4. At this time, the abutment plate 303 is started, and the abutment plate 303 will move toward the inner wall of the PVC pipe 4, and finally abut against the inner wall of the PVC pipe 4, so that one end of the PVC pipe 4 can be fixed. At this time, one end of the PVC pipe 4 is fixed by the limit ring 13, and the other end is fixed by the abutment plate 303. Therefore, the PVC pipe 4 is always in a horizontal state at this time, and there will be no tilting of the cutting surface during cutting.

[0034] like Figures 1 to 7As shown, the base frame 1 also includes: a sliding groove 12, which is opened inside the placement frame 11, and the PVC pipe 4 slides on the inner wall of the sliding groove 12; the cutting structure 2 also includes: a cutting frame 21, which is arranged at the upper end of the placement frame 11, and the cutting frame 21 is connected to the laser cutting head 22; the adjustment structure 3 also includes: a sliding block 302, which is slidably connected to the inside of the adjustment plate 307; a rotating arm 305, which is rotatably connected to the surface of the sliding block 302, and the other end of the rotating arm 305 is connected to the abutment plate 303 is rotatably connected; a sliding rod 311, the sliding rod 311 is arranged at one end of the abutment plate 303; a slide groove 308, the slide groove 308 is opened on the surface of the adjustment plate 307, and the sliding rod 311 slides on the inner wall of the slide groove 308; an abutment sheet 306, the abutment sheet 306 is slidably connected to the inside of the adjustment plate 307, and the abutment sheet 306 is connected to the sliding block 302, and the abutment sheet 306 is in contact with the PVC pipe 4; a pressing spring 309, the pressing spring 309 is arranged at one end of the sliding block 302, and the other end of the pressing spring 309 is in contact with the operating panel 301.

[0035] Specifically, before the PVC pipe 4 contacts the operating plate 301, it will first contact the abutment sheet 306 and push the abutment sheet 306 toward the operating plate 301. In the process of moving, the abutment sheet 306 will drive the sliding block 302 to move together. When the sliding block 302 moves, the rotating arm 305 will rotate, so that the abutment sheet 303 at the other end of the rotating arm 305 moves toward the inner wall of the PVC pipe 4, and the sliding rod 311 at one end of the abutment sheet 303 will also be in the sliding groove 308. The inner wall of the PVC pipe 4 is slid, and finally when the PVC pipe 4 is completely in contact with the operating plate 301, the abutment plate 303 will be completely in contact with the inner wall of the PVC pipe 4 to fix the PVC pipe 4, and after the cutting of the PVC pipe 4 is completed, the uncut part of the PVC pipe 4 is moved a distance away from the operating plate 301, so that the cut part of the PVC pipe 4 has no abutment force on the abutment sheet 306, and the pressing spring 309 will release the elastic force at this time, thereby pushing the sliding block 302 and the abutment plate 303 to their original positions.

[0036] like Figures 1 to 4 As shown, a buffer pad 304 is provided at one end of the abutting plate 303 close to the inner wall of the PVC pipe 4 , and the buffer pad 304 is in contact with the inner wall of the PVC pipe 4 .

[0037] Specifically, by providing the buffer pad 304, when the abutment plate 303 contacts the inner wall of the PVC pipe 4, the inner wall of the PVC pipe 4 will first contact the buffer pad 304, which will not only increase the friction between the abutment plate 303 and the PVC pipe 4, making the fixing effect of the PVC pipe 4 better, but also reduce wear and increase the service life.

[0038] like Figure 7 As shown, a fixing buckle 312 is disposed on the inner wall of the slide slot 308 , and the fixing buckle 312 is in contact with the sliding rod 311 .

[0039] Specifically, by setting the fixing buckle 312, when the sliding rod 311 slides to the top on the inner wall of the sliding groove 308, the fixing buckle 312 will be engaged with the sliding rod 311, so that the sliding rod 311 and the abutment plate 303 can be fixed, and the abutment effect of the abutment plate 303 is better.

[0040] like Figure 2 As shown, an auxiliary roller 14 is rotatably connected inside the limiting ring 13 , and the auxiliary roller 14 contacts the surface of the PVC pipe 4 .

[0041] Specifically, by setting an auxiliary roller 14 inside the limiting ring 13, after the laser cutting head 22 cuts the PVC pipe 4, the cut PVC pipe 4 needs to be taken away. At this time, the auxiliary roller 14 is started, and the auxiliary roller 14 will continue to move the PVC pipe 4 toward the direction of the operating panel 301 for subsequent cutting work.

[0042] like Figure 5 As shown, a limiting rod 310 is provided at one end of the adjustment plate 307 , and a pressing spring 309 is sleeved on the arc surface of the limiting rod 310 .

[0043] Specifically, by setting the limiting rod 310, when the PVC pipe 4 presses the abutment sheet 306 to move the sliding block 302 toward the operating panel 301, the limiting rod 310 can limit the moving direction of the pressing spring 309, so that the pressing spring 309 always moves horizontally.

[0044] Embodiment 2: Figures 8 to 9 As shown, compared with Example 1, another implementation of the present invention is: two abutment walls 314 are provided at the upper end of the base frame 1, and the two abutment walls 314 are in contact with the PVC pipe 4, and one end of the upper end of the base frame 1 close to the abutment wall 314 is rotatably connected to a plurality of conveying rollers 315.

[0045] Specifically, after the PVC pipe 4 is cut, the cut part of the PVC pipe 4 will have no abutment force on the abutment plate 306. At this time, the pressing spring 309 will drive the abutment plate 303 back to its original position, and the cut PVC pipe 4 will fall between the two abutment walls 314. At this time, the conveying roller 315 is started, and the conveying roller 315 will drive the PVC pipe 4 between the two abutment walls 314 to move away from the operating panel 301, so that the cut PVC pipe 4 is not at the lower end of the laser cutting head 22, affecting the subsequent falling of the PVC pipe 4.

[0046] like Figures 8 to 9 As shown, one end of the upper surface of the base frame 1 close to the abutting wall 314 is rotatably connected with a plurality of limiting half rings 316 , and the plurality of limiting half rings 316 are in contact with the PVC pipe 4 .

[0047] Specifically, by providing the limiting half ring 316 , when the conveying roller 315 conveys the PVC pipe 4 , the limiting half ring 316 will also rotate, thereby abutting and conveying the upper half of the PVC pipe 4 , making the movement of the PVC pipe 4 more stable.

[0048] like Figures 8 to 9 As shown, a placing half ring 313 is rotatably connected to one side of the operating plate 301, and the placing half ring 313 is in contact with the PVC pipe 4, and the placing half ring 313 is tilted in an initial state.

[0049] Specifically, since the falling direction of the PVC pipe 4 falling from the abutment plate 303 may be uncontrollable, a placing semi-ring 313 is provided below, and the placing semi-ring 313 is placed at an angle in the initial state. When the PVC pipe 4 falls on the surface of the placing semi-ring 313, the placing semi-ring 313 is started to rotate, and the PVC pipe 4 will rotate with the placing semi-ring 313. When the placing semi-ring 313 rotates to vertical, the cut surface of the PVC pipe 4 will contact the conveying roller 315, and then the conveying roller 315 will convey the PVC pipe 4.

[0050] like Figures 8 to 9 As shown, a coil spring 317 is provided at one end of the placement half ring 313 , and one end of the coil spring 317 is in contact with the operating plate 301 .

[0051] Specifically, when the PVC pipe 4 falls on the surface of the placement semi-ring 313, the pressure of the PVC pipe 4 will cause the placement semi-ring 313 to rotate. Then, when the conveying roller 315 conveys the PVC pipe 4 to no longer contact the placement semi-ring 313, the coil spring 317 will release the elastic force, thereby automatically driving the placement semi-ring 313 to reset.

[0052] Working principle: When cutting, first place the PVC pipe 4 inside the placing frame 11, then start the auxiliary roller 14, the auxiliary roller 14 will carry the PVC pipe 4 to continue to move toward the operating panel 301, before the PVC pipe 4 contacts the operating panel 301, it will first contact the abutment sheet 306, and push the abutment sheet 306 toward the operating panel 301, and the abutment sheet 306 will drive the sliding block 302 to move together during the movement of the sliding block 302, and when the sliding block 302 moves, the rotating arm 305 The rotating arm 305 will rotate, so that the abutment plate 303 at the other end of the rotating arm 305 moves toward the inner wall of the PVC pipe 4, and the sliding rod 311 at one end of the abutment plate 303 will also slide on the inner wall of the slide groove 308. Finally, when the PVC pipe 4 is completely in contact with the operating panel 301, the abutment plate 303 will be completely in contact with the inner wall of the PVC pipe 4 to fix the PVC pipe 4. At this time, current is transmitted to the laser module 23. When the current passes through the semiconductor material inside the laser module 23, it will excite the electrons and holes in the semiconductor to emit The composite process releases energy and generates photons, which are released from the laser cutting head 22, thereby laser cutting the PVC pipe 4 below. In the process of cutting, the limit ring 13 can rotate, and the limit ring 13 will rotate with the PVC pipe 4, so that the PVC pipe 4 is cut. After the cutting of the PVC pipe 4 is completed, the auxiliary roller 14 is reversed, and the auxiliary roller 14 will move a distance away from the operating panel 301 with the uncut part of the PVC pipe 4, so that the cut part of the PVC pipe 4 has no abutment force on the abutment sheet 306. At this time, the pressing spring 309 will release the elastic force, thereby pushing the sliding block 302 and the abutment plate 303 to their original positions. The PVC pipe 4 falling from the abutment plate 303 will fall on the surface of the placement semi-ring 313. Due to the pressure of the PVC pipe 4, the placement semi-ring 313 will rotate, and then the conveying roller 315 will convey the PVC pipe 4, so that the cut PVC pipe 4 is not at the lower end of the laser cutting head 22, affecting the subsequent falling of the PVC pipe 4.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A PVC pipe laser cutting machine, characterized by: It comprises a base frame (1), wherein the interior of the base frame (1) is used to place a PVC pipe (4), an adjustment structure (3) is provided at one end of the base frame (1), and the adjustment structure (3) is used in conjunction with the PVC pipe (4), and a cutting structure (2) is provided at the upper end of the base frame (1); The base frame (1) comprises: A placement frame (11), wherein the interior of the placement frame (11) is used to place the PVC pipe (4); A limiting ring (13), wherein the limiting ring (13) is arranged at one end of the placement frame (11), and the inner wall of the limiting ring (13) is in contact with the PVC pipe (4); A sliding groove (12), wherein the sliding groove (12) is provided inside the placement frame (11), and the PVC pipe (4) slides on the inner wall of the sliding groove (12); The cutting structure (2) comprises: A laser module (23), wherein the laser module (23) is arranged at the upper end of the PVC pipe (4); A laser cutting head (22), wherein the laser cutting head (22) is arranged at the lower end of the laser module (23); A cutting frame (21), wherein the cutting frame (21) is disposed at the upper end of the placement frame (11), and the cutting frame (21) is connected to a laser cutting head (22); The regulating structure (3) comprises: An operating panel (301), wherein the operating panel (301) is arranged at one end of the base frame (1); An adjustment plate (307), wherein the adjustment plate (307) is fixedly connected to a surface of the operating plate (301); An abutment plate (303), wherein the abutment plate (303) slides on the surface of the adjustment plate (307), and the abutment plate (303) abuts against the inner wall of the PVC pipe (4); A sliding block (302), the sliding block (302) being slidably connected inside the adjustment plate (307); A rotating arm (305), wherein the rotating arm (305) is rotatably connected to the surface of the sliding block (302), and the other end of the rotating arm (305) is rotatably connected to the abutment plate (303); A sliding rod (311), wherein the sliding rod (311) is arranged at one end of the abutment plate (303); A slide groove (308), wherein the slide groove (308) is provided on the surface of the adjustment plate (307), and the sliding rod (311) slides on the inner wall of the slide groove (308); An abutment sheet (306), wherein the abutment sheet (306) is slidably connected inside the adjustment plate (307), the abutment sheet (306) is connected to the sliding block (302), and the abutment sheet (306) is in contact with the PVC pipe (4); A pressing spring (309) is provided at one end of the sliding block (302), and the other end of the pressing spring (309) is in contact with the operating plate (301).

2. A PVC pipe laser cutting machine according to claim 1, characterized in that: A buffer pad (304) is provided at one end of the abutment plate (303) close to the inner wall of the PVC pipe (4), and the buffer pad (304) is in contact with the inner wall of the PVC pipe (4).

3. The PVC pipe laser cutting machine according to claim 1, characterized in that: A fixing buckle (312) is provided on the inner wall of the sliding groove (308), and the fixing buckle (312) is in contact with the sliding rod (311).

4. The PVC pipe laser cutting machine according to claim 2, characterized in that: An auxiliary roller (14) is rotatably connected inside the limiting ring (13), and the auxiliary roller (14) is in contact with the surface of the PVC pipe (4).

5. The PVC pipe laser cutting machine according to claim 1, characterized in that: A limiting rod (310) is provided at one end of the adjustment plate (307), and a pressing spring (309) is sleeved on the arc surface of the limiting rod (310).

6. The PVC pipe laser cutting machine according to claim 4, characterized in that: Two abutment walls (314) are provided at the upper end of the base frame (1), and the two abutment walls (314) are in contact with the PVC pipe (4); one end of the upper end of the base frame (1) close to the abutment wall (314) is rotatably connected to a plurality of conveying rollers (315).

7. A PVC pipe laser cutting machine according to claim 6, characterized in that: One end of the upper surface of the base frame (1) close to the abutment wall (314) is rotatably connected to a plurality of limiting half rings (316), and the plurality of limiting half rings (316) are in contact with the PVC pipe (4).

8. The PVC pipe laser cutting machine according to claim 7, characterized in that: A placing half ring (313) is rotatably connected to one side of the operating panel (301), and the placing half ring (313) is in contact with the PVC pipe (4). The placing half ring (313) is tilted in an initial state.

9. The PVC pipe laser cutting machine according to claim 8, characterized in that: A coil spring (317) is provided at one end of the placement half ring (313), and one end of the coil spring (317) is in contact with the operating plate (301).

Images