Thermal cutting device for EPS (Expandable Polystyrene) foam board

Abstract

The utility model relates to the technical field of cutting, and particularly discloses an EPS foam board thermal cutting device which comprises a base, a second U-shaped frame is installed at the upper end of the base in a sliding mode, and a movable sliding table is installed at the upper end of the interior of the second U-shaped frame in a sliding mode. A first connecting frame is rotatably mounted at the right end of the interior of the movable sliding table, a double-end rotating column is rotatably mounted at the right end of the interior of the first connecting frame, and the two ends of the double-end rotating column are located on the outer side of the first connecting frame; a U-shaped connecting base is rotatably mounted in the middle of the outer side of the double-end rotating column, the right end of a first connecting frame is located in the middle of the outer side of the U-shaped connecting base, and the first connecting frame and a second connecting frame can enable a laser cutter to conduct curve rotation, so that the laser cutter can conduct curve cutting on an EPS foam board; and then the laser cutter can perform circular motion under the action of structures such as a first belt and a second belt.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a thermal cutting device for an EPS foam board. Background Art

[0002] Thermal cutting refers to the method of using concentrated heat energy to melt or burn and separate materials. Thermal cutting is widely used in the industrial sector for cutting metal materials, processing parts, dismantling waste and scrap, as well as installation and removal.

[0003] EPS foam board is made of expandable polystyrene beads containing volatile liquid foaming agent, which are pre-expanded by heating and then heated in a mold to form a white object with fine closed cells. Traditional EPS foam board is cut by a cutting knife, and the cutting speed is slow. Moreover, during the cutting process, most cutting devices on the market can only perform linear reciprocating motion when operating, so the equipment can only perform linear cutting on EPS foam board.

[0004] For example, a Chinese patent (publication number: CN215824574U) discloses a thermal cutting device for an EPS foam board, including a base, the top of which is fixedly connected to a first mounting plate and a second mounting plate, etc. The above patent can only move left and right and forward and backward during operation, so that the laser cutting device can only perform cross cutting. This results in the need to replace the equipment structure to complete the operation when facing requirements for some special shapes, such as curves, circles, etc. The above patent cannot complete the operation and has limitations.

[0005] Therefore, a kind of EPS foam board thermal cutting device is specially proposed. Summary of the invention

[0006] The purpose of the utility model is to provide an EPS foam board thermal cutting device, in which a first connecting frame and a second connecting frame can allow a laser cutter to rotate in a curve, so that the laser cutter can perform curved cutting on the EPS foam board, and then the laser cutter can perform circular motion under the action of a first belt, a second belt and other structures, so as to perform circular cutting, and then the distance between the two laser cutters can be adjusted with the cooperation of a slot and a limit rod, so as to change the diameter of the cut circle, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: an EPS foam board thermal cutting device, comprising a base, a second U-shaped frame is slidably mounted on the upper end of the base, and a movable slide is slidably mounted on the inner upper end of the second U-shaped frame;

[0008] A first connecting frame is rotatably mounted on the right inner end of the movable slide, a double-headed rotating column is rotatably mounted on the right inner end of the first connecting frame, and both ends of the double-headed rotating column are located outside the first connecting frame;

[0009] A U-shaped connection seat is rotatably mounted on the middle part of the outer side of the double-headed rotating column, and the right end of the first connecting frame is located at the middle part of the outer side of the U-shaped connection seat;

[0010] A second connecting frame is fixedly mounted on the outer front end of the U-shaped connecting seat;

[0011] A conveying column is rotatably mounted inside the second connecting frame, and two ends of the conveying column are located outside the conveying column;

[0012] A plurality of laser cutters are rotatably mounted on the lower end of the conveying column.

[0013] Preferably, a first transverse slide groove is provided at the upper end of the base near the edge, a slide table is slidably installed inside the first slide groove, and the upper ends of the two slide tables are fixedly connected to the lower end opening of the second U-shaped frame.

[0014] Preferably, a frame seat is fixedly installed on the upper end surface of the base inside the first slide groove, side slide grooves are provided on the front and rear end surfaces of the frame seat, and a plurality of roller grooves are evenly provided on the upper end surface of the frame seat, and rollers are rotatably installed inside the roller grooves.

[0015] Preferably, a first U-shaped frame is slidably installed between the two side slide grooves, the upper end of the first U-shaped frame is located above the frame seat, and two movable seats are slidably installed on the upper end of the first U-shaped frame. A screw is rotatably installed on the surface of the movable seat from the upper end to the lower end, and a pressing plate is rotatably installed on the lower end of the screw.

[0016] Preferably, a second slide groove is provided on the inner upper end surface of the second U-shaped frame, the upper end of the movable slide is slidably installed in the second slide groove, an adjusting motor is fixedly installed on the front end of the second U-shaped frame, an adjusting rod is fixedly installed on the output shaft of the adjusting motor, and the movable slide is rotatably installed on the circumferential surface of the adjusting rod.

[0017] Preferably, a first motor is fixedly mounted on the upper right end of the movable slide, a groove wheel is fixedly mounted on the output shaft of the first motor, and the left end of the first connecting frame is located between the first motor and the groove wheel and is rotatably mounted on the output shaft of the first motor.

[0018] Preferably, the groove wheel is rotatably installed with a first belt between the lower ends of the double-headed rotating columns, and a first vertical plate and a second vertical plate are rotatably installed on the circumferential surface of the lower end of a second belt rotatably installed between the upper end of the double-headed rotating column and the conveying column, a clamping groove is rotatably installed on both sides of the lower end of the first vertical plate, and a limiting rod is rotatably installed on both sides of the lower end of the second vertical plate, and the rear end of the limiting rod can be rotatably installed inside the clamping groove, and the upper end of the laser cutter is fixedly connected to the lower ends of the first vertical plate and the second vertical plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model can make the laser cutter rotate in a curve on the first connecting frame and the second connecting frame, so that the laser cutter can make a curve cutting on the EPS foam board, and then the laser cutter can make a circular motion under the action of the first belt, the second belt and other structures, so as to make a circular cutting, and then the distance between the two laser cutters can be adjusted under the cooperation of the card slot and the limit rod, so as to change the diameter of the cut circle.

[0021] 2. The utility model can press the EPS foam board with the cooperation of the first U-shaped frame, the movable seat, the pressing plate and other structures, and during the operation, the distance between the pressing plates can be adjusted at any time, so that the pressing plates can adapt to EPS foam boards of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is the main structure diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the base of the utility model;

[0025] Figure 3 It is a schematic diagram of the roller groove and roller of the utility model;

[0026] Figure 4 This is a schematic diagram of a first U-shaped frame of the utility model;

[0027] Figure 5 This is a schematic diagram of a second U-shaped frame of the present utility model;

[0028] Figure 6It is a schematic diagram of a mobile slide of the utility model;

[0029] Figure 7 It is a schematic diagram of the first connecting frame and the second connecting frame of the utility model;

[0030] Figure 8 It is a schematic diagram of the first belt and double-headed rotating column of the utility model;

[0031] Fig. 9 It is a schematic diagram of the double-headed rotating column and the second belt of the utility model;

[0032] Fig.10 It is a schematic diagram of the transmission column and laser cutter of the utility model;

[0033] Fig.11 It is a schematic diagram of the card slot and the limit rod of the utility model;

[0034] Description of reference numerals:

[0035] 1. Base; 101. First slide groove; 102. Slide table; 2. Frame seat; 21. Side slide groove; 22. Roller groove; 23. Roller;

[0036] 3. First U-shaped frame; 31. Moving seat; 33. Screw rod; 34. Pressing plate;

[0037] 4. Second U-shaped frame; 41. Second slide slot; 5. Adjustment motor; 51. Adjustment rod;

[0038] 6. Moving slide; 7. First motor; 71. Grooved wheel; 8. First connecting frame; 9. Double-headed rotating column; 10. First belt; 11. U-shaped connecting seat; 12. Second connecting frame; 13. Transmission column; 14. Second belt; 15. First vertical plate; 151. Card slot; 16. Second vertical plate; 161. Limit rod; 17. Laser cutter. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] See also Figures 1 to 11 , the utility model provides a technical solution:

[0041] A device for thermal cutting of EPS foam boards, comprising a base 1, a second U-shaped frame 4 is slidably mounted on the upper end of the base 1, a movable slide 6 is slidably mounted on the inner upper end of the second U-shaped frame 4; a first connecting frame 8 is rotatably mounted on the inner right end of the movable slide 6, a double-headed rotating column 9 is rotatably mounted on the inner right end of the first connecting frame 8, and both ends of the double-headed rotating column 9 are located on the outer side of the first connecting frame 8; a U-shaped connecting seat 11 is rotatably mounted on the outer middle part of the double-headed rotating column 9, and the right end of the first connecting frame 8 is located on the outer middle part of the U-shaped connecting seat 11; a second connecting frame 12 is fixedly mounted on the outer front end of the U-shaped connecting seat 11; a conveying column 13 is rotatably mounted on the inner part of the second connecting frame 12, and both ends of the conveying column 13 are located on the outer side of the conveying column 13; a plurality of laser cutters 17 are rotatably mounted on the lower end of the conveying column 13, and the base 1 A first transverse slide groove 101 is provided at the upper end near the edge, and a slide table 102 is slidably installed inside the first slide groove 101. The upper ends of the two slide tables 102 are fixedly connected to the lower end opening of the second U-shaped frame 4. The upper end surface of the base 1 is located on the inner side of the first slide groove 101 and a frame seat 2 is fixedly installed. The front and rear end surfaces of the frame seat 2 are both provided with side slide grooves 21, and the upper end surface of the frame seat 2 is evenly provided with a plurality of roller grooves 22, and rollers 23 are rotatably installed inside the roller grooves 22. A first U-shaped frame 3 is slidably installed between the two side slide grooves 21, and the upper end of the first U-shaped frame 3 is located above the frame seat 2. Two movable seats 31 are slidably installed on the upper end of the first U-shaped frame 3, and a screw 33 is rotatably installed on the surface of the movable seat 31 from the upper end to the lower end, and a pressing plate 34 is rotatably installed on the lower end of the screw 33.

[0042] By adopting the above technical scheme, most of the EPS foam board cutting devices on the market can only move linearly during use, so that during the cutting process, only the EPS foam board can be cut linearly, and the cutting of a type of structure such as a curve or a circle cannot be completed. Moreover, different structures need to be replaced to form cutting of different shapes, which makes the device limited. The structure of the device is as follows, including a base 1, a first slide groove 101 is opened on the upper end surface of the base 1 near the front and rear sides, and a slide 102 is slidably installed inside the first slide groove 101, and then a frame seat 2 is fixedly installed at a high position between the two first slide grooves 101 on the upper end surface of the base 1, and a plurality of roller grooves 22 are evenly opened on the upper end surface of the frame seat 2, and a plurality of through openings are arranged on the upper surface of the frame seat 2 corresponding to the roller grooves 22, and a roller 23 is rotatably installed inside the roller groove 22, wherein, when the circumferential surface of the roller 23 rotates to the through opening of the upper end surface of the frame seat 2, the circumferential surface of the roller 23 passes through the through opening and is located outside the frame seat 2.

[0043] Secondly, side slide grooves 21 are opened on the front and rear side surfaces of the frame seat 2, and a first U-shaped frame 3 is slidably arranged on the upper end of the frame seat 2, and the openings at both ends of the lower part of the first U-shaped frame 3 are slidably installed in the corresponding side slide grooves 21, and then two moving seats 31 are slidably installed on the upper end of the first U-shaped frame 3, and a screw rod 33 is rotatably installed at the center position of the moving seat 31, and the upper end of the screw rod 33 is located on the outside of the moving seat 31, wherein a pressing plate 34 is rotatably installed at the lower end of the screw rod 32, and a spring is fixedly installed between the upper end of the pressing plate 34 and the lower end of the moving seat 31 to prevent the pressing plate 34 from rotating synchronously with the screw rod 33. Secondly, the pressing plate 34 is located on the inner side of the first U-shaped frame 3 and above the frame seat 2.

[0044] Then, a second U-shaped frame 4 is fixedly installed on the upper ends of the two slides 102, wherein a second slide groove 41 is opened on the inner upper end surface of the second U-shaped frame 4, and then an adjustment motor 5 is fixedly installed on the outer front end of the second U-shaped frame 4, and an adjustment rod 51 is fixedly installed on the output shaft of the adjustment motor 5, and the adjustment rod 51 is located on the inner side of the second U-shaped frame 4, and a movable slide 6 is rotatably installed on the circumferential surface of the adjustment rod 51, and the upper end of the movable slide 6 is slidably installed in the second slide groove 41; secondly, a first motor 7 is fixedly installed on the upper right end of the movable slide 6, and the output shaft of the first motor 7 A groove wheel 71 is fixedly installed on the top, wherein the groove wheel 71 is located below the movable slide 6; secondly, a first connecting frame 8 is rotatably installed between the first motor 7 and the groove wheel 71, and a double-headed rotating column 9 is rotatably installed on the right end of the first connecting frame 8, and both ends of the double-headed rotating column 9 are located on the outer side of the right end of the first connecting frame 8; secondly, a U-shaped connecting seat 11 is rotatably installed on the circumferential surface of the double-headed rotating column 9, and secondly, the right end of the first connecting frame 8 is located on the inner side of the U-shaped connecting seat 11; and then a first belt 10 is rotatably installed on the circumferential surface of the groove wheel 71 and the lower end of the double-headed rotating column 9.

[0045] In addition, a second connecting frame 12 is fixedly installed on the outer side of the U-shaped connecting seat 11, and a conveying column 13 is rotatably installed inside the second connecting frame 12, and the two ends of the conveying column 13 are located on the outer side of the second connecting frame 12. Secondly, a second belt 14 is rotatably installed on the upper end of the conveying column 13 and the upper end circumferential surface of the double-headed rotating column 9, and a first vertical plate 15 and a second vertical plate 16 are rotatably installed on the lower end circumferential surface of the conveying column 13, wherein a card slot 151 is rotatably installed on both sides of the lower end of the first vertical plate 15, and a limiting rod 161 is rotatably installed on both sides of the lower end of the second vertical plate 16, and then, a laser cutter 17 is fixedly installed on the lower ends of the first vertical plate 15 and the second vertical plate 16; when in use, The second U-shaped frame 4 can slide horizontally under the drive of the slide 102, and in the process of sliding, it can slide synchronously with the adjusting motor 5, the movable slide 6 and other equipment that need to work later. The adjusting motor 5 is started, and the output shaft of the adjusting motor 5 rotates with the adjusting rod 51. During the rotation of the adjusting rod 51, the movable slide 6 can perform a linear reciprocating motion, so that the movable slide 6 can move synchronously with the first motor 7. The first motor 7 is started, and the output shaft of the first motor 7 rotates with the groove wheel 71. At this time, the first connecting frame 8 is not fixedly connected to the output shaft of the first motor 7. Therefore, during use, the first motor 7 will not drive the first connecting frame 8 synchronously. The first belt 10 is rotated step by step, and then the groove wheel 71 will rotate with the first belt 10, so that the first belt 10 will drive the double-headed rotating column 9 to rotate synchronously, and the upper end of the double-headed rotating column 9 will rotate synchronously with the second belt 14, so that the second belt 14 rotates with the conveying column 13, so that the lower end of the conveying column 13 rotates with the two laser cutters 17; secondly, during use, the construction personnel manually rotate the second connecting frame 12 to rotate. At this time, the second connecting frame 12 will rotate with the rear end as the center, so that the laser cutter 17 performs a circular motion, and the first connecting frame 8 can rotate with the left end as the center, so that The construction personnel can adjust the laser cutter 17 for curve cutting according to the actual needs of the site. Then, in order to cut a suitable circular hole, the construction personnel can gradually rotate the limit rod 161 away from the end of the second vertical plate 16 to the card slot 151, so that the two laser cutters 17 can change from a vertical state to an inclined state, and vice versa, from an inclined state to a vertical state. The construction personnel adjust the angle according to the needs of the site. With the cooperation of the above-mentioned multiple structures, the laser cutter 17 can cut at different angles such as curved angles and cylinders, which increases the diversity of the equipment's cutting and makes the equipment no longer limited to only straight line cutting when operating.

[0046] Specifically, Figures 1 to 11As shown, the second U-shaped frame 4 has a second slide groove 41 on its inner upper end surface, the upper end of the movable slide 6 is slidably mounted inside the second slide groove 41, an adjusting motor 5 is fixedly mounted on the front end of the second U-shaped frame 4, an adjusting rod 51 is fixedly mounted on the output shaft of the adjusting motor 5, the movable slide 6 is rotatably mounted on the circumferential surface of the adjusting rod 51, a first motor 7 is fixedly mounted on the right upper end of the movable slide 6, a groove wheel 71 is fixedly mounted on the output shaft of the first motor 7, the left end of the first connecting frame 8 is located between the first motor 7 and the groove wheel 71 and is rotatably mounted on the output shaft of the first motor 7 The first belt 10 is rotatably mounted on the groove wheel 71 between the lower ends of the double-headed rotating column 9, and the second belt 14 is rotatably mounted between the upper ends of the double-headed rotating column 9 and the conveying column 13. The first vertical plate 15 and the second vertical plate 16 are rotatably mounted on the circumferential surface of the lower end of the conveying column 13. The first vertical plate 15 is rotatably mounted with a card slot 151 on both sides of the lower end, and the second vertical plate 16 is rotatably mounted with a limit rod 161 on both sides of the lower end. The rear end of the limit rod 161 can be rotatably mounted inside the card slot 151. The upper end of the laser cutter 17 is fixedly connected to the lower ends of the first vertical plate 15 and the second vertical plate 16.

[0047] By adopting the above technical solution, the cutting device on the market needs to fix the EPS foam board during operation, so that the EPS foam board will not move during the cutting process. Compared with the EPS foam board of fixed size that can only be fixed on the market, the present device can be adjusted according to different sizes during use. During use, the first U-shaped frame 3 slides, and then the first U-shaped frame 3 slides synchronously with the moving seat 31, and then the screw 33 is rotated. The screw 33 pushes the pressing plate 34 to move upward or downward during the rotation process. During the downward movement, the EPS foam board can be restricted, so that the EPS foam board will not move during the cutting process. Then, during use, the position of the moving seat 31 can be moved according to different EPS foam boards, and the distance between the two moving seats 31 can be increased or decreased during the movement, so as to meet the different sizes of EPS foam boards, so that the pressing plate 34 can restrict the EPS foam board; compared with the structure on the market that can only be fixed on both sides, during use, the present device can restrict different EPS foam boards under the action of the movement of the moving seat 31, thereby increasing the practicality of the structure.

[0048] Working principle: First, move the first U-shaped frame 3, and then rotate the screw 33. The screw 33 pushes the pressing plate 34 to restrict the EPS foam board so that the EPS foam board will not be displaced.

[0049] Then the second U-shaped frame 4 is moved, and then the adjusting motor 5 is started, and the output shaft of the adjusting motor 5 rotates with the adjusting rod 51, so that the movable slide 6 slides forward and backward.

[0050] Then start the laser cutter 17 to cut the EPS foam board. During the operation, start the first motor 7. The output shaft of the first motor 7 rotates the groove wheel 71, so that the groove wheel 71 drives the first belt 10 to rotate, so that the double-headed rotating column 9 rotates synchronously, so that the second belt 14 rotates the conveying column 13, so that the conveying column 13 can rotate with the laser cutter 17.

[0051] Then, during the operation, the construction personnel can manually rotate the first connecting frame 8 and the second connecting frame 12, so that the laser cutter 17 can rotate the arc structure, thereby realizing the cutting of the curve.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An EPS foam board thermal cutting device, comprising a base (1), characterized in that: A second U-shaped frame (4) is slidably mounted on the upper end of the base (1), and a movable slide (6) is slidably mounted on the inner upper end of the second U-shaped frame (4); A first connecting frame (8) is rotatably mounted on the right inner end of the movable slide (6), and a double-headed rotating column (9) is rotatably mounted on the right inner end of the first connecting frame (8), with both ends of the double-headed rotating column (9) being located outside the first connecting frame (8); A U-shaped connecting seat (11) is rotatably mounted on the middle part of the outer side of the double-headed rotating column (9), and the right end of the first connecting frame (8) is located on the middle part of the outer side of the U-shaped connecting seat (11); A second connecting frame (12) is fixedly mounted on the outer front end of the U-shaped connecting seat (11); A conveying column (13) is rotatably mounted inside the second connecting frame (12), and two ends of the conveying column (13) are located outside the conveying column (13); A plurality of laser cutters (17) are rotatably mounted on the lower end of the conveying column (13).

2. The EPS foam board thermal cutting device according to claim 1, characterized in that: A first transverse sliding groove (101) is provided at a position near the edge of the upper end of the base (1), a sliding platform (102) is slidably installed inside the first sliding groove (101), and the upper ends of the two sliding platforms (102) are fixedly connected to the lower end opening of the second U-shaped frame (4).

3. The EPS foam board thermal cutting device according to claim 1, characterized in that: The upper end surface of the base (1) is located inside the first slide groove (101) and is fixedly mounted with a frame seat (2); the front and rear end surfaces of the frame seat (2) are both provided with side slide grooves (21); the upper end surface of the frame seat (2) is evenly provided with a plurality of roller grooves (22); rollers (23) are rotatably mounted inside the roller grooves (22).

4. The EPS foam board thermal cutting device according to claim 3, characterized in that: A first U-shaped frame (3) is slidably mounted between the two side slide grooves (21); the upper end of the first U-shaped frame (3) is located above the frame seat (2); two movable seats (31) are slidably mounted on the upper end of the first U-shaped frame (3); a screw rod (33) is rotatably mounted on the surface of the movable seat (31) from the upper end to the lower end; and a pressing plate (34) is rotatably mounted on the lower end of the screw rod (33).

5. The EPS foam board thermal cutting device according to claim 1, characterized in that: A second slide groove (41) is provided on the inner upper end surface of the second U-shaped frame (4), and the upper end of the movable slide (6) is slidably mounted inside the second slide groove (41). An adjusting motor (5) is fixedly mounted on the front end of the second U-shaped frame (4), and an adjusting rod (51) is fixedly mounted on the output shaft of the adjusting motor (5), and the movable slide (6) is rotatably mounted on the circumferential surface of the adjusting rod (51).

6. The EPS foam board thermal cutting device according to claim 5, characterized in that: A first motor (7) is fixedly mounted on the upper right end of the movable slide (6); a groove wheel (71) is fixedly mounted on the output shaft of the first motor (7); and a left end of the first connecting frame (8) is located between the first motor (7) and the groove wheel (71) and is rotatably mounted on the output shaft of the first motor (7).

7. The EPS foam board thermal cutting device according to claim 6, characterized in that: A first belt (10) is rotatably mounted between the groove wheel (71) and the lower end of the double-headed rotating column (9), and a second belt (14) is rotatably mounted between the upper end of the double-headed rotating column (9) and the conveying column (13).

8. The EPS foam board thermal cutting device according to claim 1, characterized in that: A first vertical plate (15) and a second vertical plate (16) are rotatably mounted on the circumferential surface of the lower end of the conveying column (13); a clamping groove (151) is rotatably mounted on both sides of the lower end of the first vertical plate (15); and a limiting rod (161) is rotatably mounted on both sides of the lower end of the second vertical plate (16); the rear end of the limiting rod (161) can be rotatably mounted inside the clamping groove (151); and the upper end of the laser cutter (17) is fixedly connected to the lower ends of the first vertical plate (15) and the second vertical plate (16).

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