A laser cutting automatic typesetting device

Abstract

The invention discloses an automatic typesetting device for laser cutting, comprising a cutting platform, a lateral limit rod, an elastic adjustment member, a support frame, and a transmission roller. A transmission device is arranged on the surface of the cutting platform, and a plurality of lateral limit rods are hinged on both sides of the transmission device; the two ends of the elastic adjustment member are respectively connected to the cutting platform and the lateral limit rod, and each support frame is horizontally mounted on the top of the transmission device, and a transmission roller is rotatably connected between two opposing support frames, and each transmission roller is driven by the same conveyor belt, and the transmission device and the transmission roller are driven by the transmission belt. The device can clamp and limit the plate in the thickness and width directions, thereby ensuring that the plate entering the cutting platform will not be offset, thereby ensuring the accuracy of cutting, and at the same time, the lateral limit rod with adjustable angle and the transmission roller with adjustable height cooperate with each other to adapt to the typesetting and cutting of plates of different specifications, thereby improving the application range of the entire device.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to an automatic typesetting device for laser cutting. Background Art

[0002] In the field of sheet metal processing, sheet metal cutting is a common workpiece processing procedure. Traditional cutting uses mechanical cutting, which is labor-intensive, has low cutting accuracy, rough incisions, and requires subsequent grinding. In addition, the sheet metal is greatly deformed and has many burrs. With the emergence of high-power lasers, laser cutting applications are becoming more and more widespread. Laser cutting uses invisible light to replace traditional mechanical knives, with small deformation and good repeatability.

[0003] Usually when cutting the same batch of plates, in order to ensure that the specifications and quality of the cut plates are the same, the plates usually need to be positioned. In actual use, manual correction of the plates is labor-intensive and the accuracy of plate correction is not good enough to achieve the purpose of automatic typesetting calibration.

[0004] There are also devices for automatically adjusting layout, but this device can only cut plates of the same specification. In actual cutting, the specifications of plates vary, especially for plates with different widths or thicknesses. Devices for layout of plates of a single specification will not be applicable. Summary of the invention

[0005] The purpose of the present invention is to provide a laser cutting automatic typesetting device to solve the technical problems in the existing device.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: a laser cutting automatic typesetting device, comprising:

[0007] A cutting platform, the surface of which is provided with a conveying device capable of conveying a plate;

[0008] There are several lateral limit rods, and the lateral limit rods are hinged on both sides of the conveying device in equal number;

[0009] An elastic adjustment member, one end of which is connected to the cutting platform, and the other end of which is connected to the corresponding lateral limit rod, and the elastic adjustment member can automatically drive the lateral limit rods on both sides to open a certain angle under the extrusion force of the plate;

[0010] A plurality of support frames are provided, each of which is horizontally mounted on the top of the conveying device, and the support frames are slidably plugged onto the cutting platform;

[0011] There are several transmission rollers, and one transmission roller is rotatably connected between two opposing support frames. The transmission rollers are all driven by the same conveyor belt. The transmission belt is used to drive the conveyor device and the transmission rollers, so as to cooperate with the lateral limiting rods on both sides to limit the plate in multiple dimensions.

[0012] A tightening adjustment mechanism is provided at one end of the support frame inserted into the inner cavity of the cutting platform, and rotating rollers connected to the tightening adjustment mechanism are provided on the cutting platforms located on both sides of the support frame, and a tensioning wheel is rotatably sleeved on one end of the rotating roller away from the tightening adjustment mechanism, and the two tensioning wheels are respectively and correspondingly in rolling contact with the inner side of the transmission belt;

[0013] Under the upward extrusion pressure of the plate, the support frame can move upward along the cutting platform through the tightening adjustment mechanism to adjust the height. At the same time, the tightening adjustment mechanism automatically drives the two rotating rollers to move closer to or away from each other under the height adjustment of the support frame, so as to correspondingly push the two sides of the transmission belt inward or away from each other.

[0014] As a preferred solution of the present invention, one end of one of the conveying rollers in the conveying device extending out of the cutting platform is provided with a rotating seat, and a rotating wheel is sleeved on the rotating seat;

[0015] The transmission roller located above the rotating seat extends out of the support frame at one end and is provided with a transmission seat, and two transmission wheels are sleeved on the transmission seat, one of the transmission wheels and the rotating wheel is driven by the transmission belt, and the other transmission wheel is driven by the conveyor belt.

[0016] As a preferred solution of the present invention, the elastic adjustment member includes a connecting rod, a guide rod and a guide spring. A guide groove is opened on the surface of the cutting platform. The guide rod is installed in the corresponding guide groove. A guide block is slidably connected to the guide rod. One end of the connecting rod is hinged to the lateral limit rod, and the other end is hinged to the guide block. The guide spring is sleeved on the guide rod, one end of the guide spring is connected to the guide block, and the other end is connected to the side wall of the guide groove.

[0017] As a preferred solution of the present invention, a sliding groove is provided on the surface of each of the lateral limiting rods, a sliding rod is fixedly connected to the inner cavity of the sliding groove, a sliding block is slidably connected to the sliding rod, and one end of the sliding block extending from the surface of the lateral limiting rod is hinged to the connecting rod;

[0018] A telescopic spring sleeved on the sliding rod is connected between the sliding block and the side wall of the sliding slot.

[0019] As a preferred solution of the present invention, each of the lateral limit rods is provided with a guide wheel at one end away from the hinge point, and each of the lateral limit rods is provided with an outwardly protruding arc shape at one end facing the plate, and the outwardly protruding arc shape extends all the way to the end of the lateral limit rod.

[0020] As a preferred solution of the present invention, the tightening adjustment mechanism includes two positioning rods and two positioning blocks, a positioning groove is provided on the surface of the cutting platform, the support frame slides in the middle of the positioning groove, and the top of the positioning block is connected to the rotating roller;

[0021] The two positioning rods are respectively and correspondingly fixedly connected to the two side walls of the positioning groove, and the ends of the two positioning rods close to each other are connected to the positioning block;

[0022] A compression spring sleeved on the positioning rod is connected between the two positioning blocks and the side wall of the positioning groove, and one end of the support frame extending into the positioning groove abuts against the two positioning blocks respectively.

[0023] As a preferred solution of the present invention, the end of the support frame extending into the positioning groove is arranged in a trapezoidal shape, and the ends of the two positioning blocks close to the support frame each include an inclined section and a straight section, and the inclined section and the straight section are connected to form a whole surface;

[0024] The two straight sections are parallel to each other, and a V-shaped structure that can fit the bottom of the support frame is formed between the two oblique sections.

[0025] As a preferred solution of the present invention, a slot for the positioning rod to be slidably inserted into is formed at one end of the two positioning blocks that are away from each other.

[0026] As a preferred solution of the present invention, a fixing block is provided on the side wall of one end of the support frame inserted into the positioning groove, and a mounting groove for sliding of the fixing block is provided on the side wall of the positioning groove.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The device clamps and limits the plate in the width direction by means of a component consisting of a lateral limit rod and an elastic adjustment member, and clamps the plate in the thickness direction by means of a component consisting of a tightening adjustment mechanism and a transmission roller, and the position of the plate can be automatically adjusted in the width direction by means of the elastic adjustment member to ensure that the plate moves along the middle position of the cutting platform, thereby ensuring that the plate entering the cutting platform will not deviate, thereby ensuring the accuracy of the cutting.

[0029] At the same time, the lateral limiting rod with adjustable angle and the driving roller with adjustable height cooperate with each other to adapt to the layout and cutting of plates of different specifications, thereby improving the application range of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 The schematic diagram of the structure of the cutting platform after removal;

[0033] Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the cutting platform after the lateral limit rod is removed;

[0034] Figure 4 For the present invention Figure 2 A top view of the

[0035] Figure 5 For the present invention Figure 4 The enlarged structural diagram of part A in the middle;

[0036] Figure 6 For the present invention Figure 3 The enlarged structural diagram of part B in the middle;

[0037] Figure 7 For the present invention Figure 6 A schematic diagram of the cross-sectional structure of;

[0038] The numbers in the figure represent the following:

[0039] 1. Cutting platform; 2. Conveying device; 3. Lateral limit rod; 4. Positioning groove; 5. Elastic adjustment member; 6. Support frame; 7. Transmission roller; 8. Conveyor belt; 9. Tightening adjustment mechanism; 10. Transmission belt; 11. Rotating roller; 12. Transmission seat; 13. Transmission wheel; 14. Rotating seat; 15. Rotating wheel; 16. Guide groove; 17. Slide groove; 18. Sliding rod; 19. Sliding block; 20. Telescopic spring; 21. Guide wheel; 22. Tensioning wheel;

[0040] 51. Connecting rod; 52. Guide rod; 53. Guide spring; 54. Guide block;

[0041] 91. Positioning rod; 92. Positioning block; 93. Compression spring; 94. Slot; 95. Fixing block; 96. Mounting slot;

[0042] 921, oblique section; 922, straight section. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] like Figure 1-7 As shown, a laser cutting automatic typesetting device comprises:

[0045] A cutting platform 1, the surface of which is provided with a conveying device 2 capable of conveying a plate;

[0046] There are several lateral limit rods 3, and the lateral limit rods 3 are hinged on both sides of the conveying device 2 in equal number;

[0047] The elastic adjusting member 5 has one end connected to the cutting platform 1 and the other end connected to the corresponding lateral limiting rod 3. The elastic adjusting member 5 can automatically drive the lateral limiting rods 3 on both sides to rotate in the direction of the plate moving forward and open to a certain angle under the thrust of the plate moving forward;

[0048] A plurality of support frames 6 are provided, each of which is horizontally mounted on the top of the conveying device 2, and the support frames 6 are slidably plugged into the cutting platform 1;

[0049] There are several transmission rollers 7, and two opposing support frames 6 are each rotatably connected to a transmission roller 7. Each transmission roller 7 is driven by the same conveyor belt 8, and the transmission device 2 and the transmission roller 7 are driven by a transmission belt 10 to cooperate with the lateral limiting rods 3 on both sides to limit the plate in multiple directions;

[0050] A tightening adjustment mechanism 9 is provided at one end of the support frame 6 inserted into the inner cavity of the cutting platform 1, and rotating rollers 11 connected to the tightening adjustment mechanism 9 are provided on the cutting platforms 1 located on both sides of the support frame 6. A tensioning wheel 22 is rotatably sleeved on one end of the rotating roller 11 away from the tightening adjustment mechanism 9, and the two tensioning wheels 22 are respectively in rolling contact with the inner side of the transmission belt 10 correspondingly;

[0051] Under the upward extrusion pressure of the plate, the support frame 6 can move upward along the cutting platform 1 through the tightening adjustment mechanism 9 to adjust the height. At the same time, the tightening adjustment mechanism 9 automatically drives the two rotating rollers 11 to move closer to or away from each other under the height adjustment of the support frame 6, so as to correspondingly push the two sides of the transmission belt 10 inward or away from each other.

[0052] The device clamps and limits the plate in the width direction by means of a component consisting of a lateral limit rod and an elastic adjustment member, and clamps the plate in the thickness direction by means of a component consisting of a tightening adjustment mechanism and a transmission roller, and the position of the plate can be automatically adjusted in the width direction by means of the elastic adjustment member to ensure that the plate moves along the middle position of the cutting platform, thereby ensuring that the plate entering the cutting platform will not deviate, thereby ensuring the accuracy of the cutting.

[0053] The width limit is mainly focused on centering the position of the plate, that is, when the plate enters the two lateral limit rods 3, even if the plate is tilted or not entering along the center position of the workbench 1, when the plate contacts one of the lateral limit rods 3, the spring in the contacting lateral limit rod 3 undergoes elastic deformation, which will also cause the lateral limit rod 3 to apply reverse force to the plate, pushing the plate toward the lateral limit rod 3 on the other side until the lateral limit rods 3 on both sides can synchronously squeeze the side wall of the plate.

[0054] Thereby, the plate is limited to the center position of the workbench. Within the range that the two lateral limit rods 3 can push, the lateral limit rods with adjustable angles and the adjustable height transmission rollers cooperate with each other to adapt to the layout and cutting of plates of different specifications, thereby improving the application range of the entire device.

[0055] Furthermore, the thickness range of the plate to be laser cut can generally be known in advance, that is, the minimum and maximum thickness ranges of the plate will not exceed the adjustable range of the drive roller, and the height of the plate will not completely exceed the position of the center axis of the initial height of the drive roller, thereby avoiding the possibility of the drive roller twisting off.

[0056] In the present application, the height of the transmission roller can be automatically adjusted by the support frame 6, and the adjustment process mainly relies on the elastic force of the spring. When the plates in this thickness range pass through the transmission roller, they can be attached to the plates under the downward pressure of the transmission roller. The main purpose is to cooperate with the conveying device at the lower end to realize the movement of the plates, and it is not to clamp the plates in place in the thickness direction.

[0057] The conveying device 2 is a conventional transmission roller mechanism, that is, all conveying rollers are driven to move by a single motor, thereby realizing the movement of the plate.

[0058] Specifically, Figure 1-7As shown, one end of one of the conveying rollers in the conveying device 2 extending out of the cutting platform 1 is provided with a rotating seat 14, and a rotating wheel 15 is sleeved on the rotating seat 14;

[0059] A transmission seat 12 is provided at one end of the transmission roller 7 extending out of the support frame 6 above the rotating seat 14, and two transmission wheels 13 are sleeved on the transmission seat 12. One of the transmission wheels 13 and the rotating wheel 15 is driven by a transmission belt 10, and the other transmission wheel 13 is driven by a conveyor belt 8.

[0060] This transmission method can realize that the single motor drives the conveying device 2 and the driving roller 7 to rotate synchronously, thereby facilitating the movement of the plate.

[0061] Specifically, Figure 1-7 As shown, the elastic adjustment member 5 includes a connecting rod 51, a guide rod 52 and a guide spring 53. A guide groove 16 is provided on the surface of the cutting platform 1. The guide rod 52 is installed in the corresponding guide groove 16. A guide block 54 is slidably connected to the guide rod 52. One end of the connecting rod 51 is hinged to the lateral limit rod 3, and the other end is hinged to the guide block 54. The guide spring 53 is sleeved on the guide rod 52, and one end of the guide spring 53 is connected to the guide block 54, and the other end is connected to the side wall of the guide groove 16.

[0062] Further, such as Figure 1-7 As shown, each lateral limit rod 3 is provided with a slide groove 17 on its surface, a sliding rod 18 is fixedly connected to the inner cavity of the slide groove 17, a sliding block 19 is slidably connected to the sliding rod 18, and one end of the sliding block 19 extending out of the surface of the lateral limit rod 3 is hinged to the connecting rod 51;

[0063] A telescopic spring 20 sleeved on the sliding rod 18 is connected between the sliding block 19 and the side wall of the sliding groove 17 .

[0064] When the plate enters the cutting platform 1, it is driven by the conveying device 2 and gradually contacts the lateral limit rods 3 on both sides. As the travel distance increases, the plate automatically squeezes the lateral limit rods 3 on both sides. At this time, the lateral limit rods 3 drive the connecting rod 51 to slide along the guide groove 16. Since the connecting rod 51 is connected to the guide block 54, the moving connecting rod 51 drives the guide block 54 to squeeze the guide spring 53. At this time, the guide spring 53 undergoes elastic deformation, and the lateral limit rods 3 on both sides will also open a certain angle, that is, a channel for the plate to pass through is formed between the two lateral limit rods 3, and the width of the channel is just the same as the width of the plate to be cut. After the plate cutting is completed, the lateral limit rods 3 that are not subjected to the squeezing force return to their original state under the reset of the guide spring 53, so as to facilitate the next stage of plate cutting.

[0065] At the same time, the telescopic spring 20 provided on the lateral limit rod 3 can further adjust the opening angle of the limit rods on both sides, so as to increase the opening angle of the lateral limit rods 3 on both sides within the range of activity, and further adapt to the clamping of plates of various widths.

[0066] Since the side walls of the plate are clamped by the lateral limiting rods 3 on both sides, and the plate needs to be able to move smoothly after being clamped, the lateral limiting rods 3 on both sides need to be able to transition smoothly with the plate.

[0067] Specifically, Figure 1-7 As shown, each lateral limit rod 3 is provided with a guide wheel 21 at one end away from the hinge point, and each lateral limit rod 3 is provided with an outwardly protruding arc shape at one end facing the plate, and the outwardly protruding arc shape extends all the way to the end of the lateral limit rod 3.

[0068] Such a configuration is beneficial to the movement of the plate between the lateral limiting rods 3 on both sides, thereby avoiding interference of the lateral limiting rods 3 on both sides with the movement of the plate.

[0069] The transmission roller 7 and the conveying device 2 are arranged in a linkage form, and the rotation of the upper and lower ends can further drive the conveying of the plate, and the support frame 6 can slide up and down. Therefore, the tightness between the transmission roller 7 and the conveying device 2 needs to be automatically adjusted according to the thickness of the plate.

[0070] Specifically, Figure 1-7 As shown, the tightening adjustment mechanism 9 includes two positioning rods 91 and two positioning blocks. A positioning groove 4 is provided on the surface of the cutting platform 1. The support frame 6 slides in the middle of the positioning groove 4. The top of the positioning block 92 is connected to the rotating roller 11.

[0071] The two positioning rods 91 are respectively and correspondingly fixedly connected to the two side walls of the positioning groove 4, and the ends of the two positioning rods 91 that are close to each other are connected to the positioning blocks 92;

[0072] A compression spring 93 sleeved on the positioning rod 91 is connected between the two positioning blocks 92 and the side wall of the positioning groove 4 , and one end of the support frame 6 extending into the positioning groove 4 abuts against the two positioning blocks 92 respectively.

[0073] There is rolling friction between the tension wheel 22 and the surface of the transmission belt 10 , which facilitates the transmission of the transmission belt 10 , and the purpose of the rotating roller 11 moving to both sides is mainly to adapt to the change in the height of the support frame 6 .

[0074] Among them, when the height of the support frame 6 changes, the position of the transmission seat 12 located on the support frame 6 will also change accordingly. Since the position between the rotating seats 14 is fixed, the fixed length of the transmission belt 10 is fixed, that is, in the initial position, the distance between the rotating seat 14 and the transmission seat 12 is the fixed length of the transmission belt 10. When the height of the support frame 6 is lowered or raised to adapt to the change in the thickness of the plate, the two sides of the transmission belt 10 will become loose accordingly, that is, the two sides of the transmission belt 10 may be separated from the rotating wheel 15 and the transmission wheel 13 between the rotating seat 14 and the transmission seat 12. Therefore, the setting of the rotating roller 11 can play a supporting role in the transmission belt 10, and the setting of the tensioning wheel 22 can reduce the wear of the transmission belt 10, so that the two ends of the transmission belt 10 can always be in contact and fit with the rotating wheel 15 and the transmission wheel 13.

[0075] Further, such as Figure 1-7 As shown, the end of the support frame 6 extending into the positioning groove 4 is set in a trapezoidal shape, and the ends of the two positioning blocks 92 close to the support frame 6 each include an inclined section 921 and a straight section 922, and the inclined section 921 and the straight section 922 are connected to form a whole surface;

[0076] The two straight sections 922 are parallel to each other, and a V-shaped structure that can fit the bottom of the support frame 6 is formed between the two oblique sections 921 .

[0077] When the plate is not in contact with the lateral limit rod 3, the positioning blocks 92 on both sides are squeezed by the gravity of the support frame 6 and the transmission roller 7 themselves, and the positioning blocks 92 on both sides move away from each other under the action of the squeezing force. At this time, the compression springs 93 on both sides are elastically deformed due to the squeezing force, and the support frame 6 is also at the lowest point. At this time, the distance between the transmission roller 7 and the transmission device is the smallest, indicating that the thickness of the plate that can be limited is also the smallest. As the thickness of the plate increases, the height of the transmission roller 7 is raised, and the transmission roller 7 is connected to the conveying device 2 through the transmission belt 10. Because the position of the conveying device 2 is fixed, the transmission belt 10 will be stretched at this time, and the stretched transmission belt 10 will interfere with the transmission between the transmission roller 7 and the conveying device 2.

[0078] Therefore, when the support frame 6 moves upward, the compression springs 93 that are elastically deformed on both sides squeeze the positioning blocks 92 on both sides to move toward the support frame 6. At this time, the two positioning blocks 92 are close to each other, and the positioning blocks 92 that are close to each other will also drive the two rotating rollers 11 to approach each other. Since the tensioning wheel 22 on the rotating roller 11 is inserted into the inner side of the transmission belt 10, the transmission belt 10 moves inward to meet the longitudinal deformation of the transmission belt 10, thereby achieving the effect of adjusting the tightness of the transmission belt 10.

[0079] Further, such as Figure 6-7 As shown, the ends of the two positioning blocks 92 that are away from each other are each provided with a slot 94 for the positioning rod 91 to slide into.

[0080] Furthermore, Figure 6-7 As shown, a fixing block 95 is provided on the side wall of one end of the support frame 6 inserted into the positioning groove 4, and a mounting groove 96 for the fixing block 95 to slide is opened on the side wall of the positioning groove 4.

[0081] The arrangement of the mounting groove 96 and the fixing block 95 is conducive to ensuring that the support frame 6 moves in a straight line. The support frame 6 moving in a straight line can ensure that the positioning blocks 92 on both sides are evenly stressed, thereby ensuring the consistency of the sliding distance of the two rotating rollers 11, thereby ensuring the support on both sides of the transmission belt 10, so as to facilitate the normal transmission of the transmission belt 10.

[0082] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A laser cutting automatic typesetting device, characterized in that: include: A cutting platform (1), wherein a conveying device (2) capable of conveying a plate is provided on the surface of the cutting platform (1); A plurality of lateral limiting rods (3) are provided, and an equal number of the lateral limiting rods (3) are hinged on both sides of the conveying device (2); An elastic adjustment member (5), one end of which is connected to the cutting platform (1), and the other end of which is connected to the corresponding lateral limit rod (3); the elastic adjustment member (5) can automatically drive the lateral limit rods (3) on both sides to open and squeeze and clamp the side of the plate under the thrust of the plate moving forward; A plurality of support frames (6) are provided, each of the support frames (6) is horizontally mounted on the top of the conveying device (2), and the support frames (6) are slidably plugged onto the cutting platform (1); A plurality of transmission rollers (7) are provided, and each of the two opposing support frames (6) is rotatably connected to a transmission roller (7), and each of the transmission rollers (7) is driven by the same conveyor belt (8), and the transmission device (2) and the transmission rollers (7) are driven by a transmission belt (10) to cooperate with the lateral limiting rods (3) on both sides to limit the thickness and width directions of the plate; Wherein, a tightening adjustment mechanism (9) is arranged at one end of the support frame (6) inserted into the inner cavity of the cutting platform (1), and rotating rollers (11) connected to the tightening adjustment mechanism (9) are arranged on the cutting platforms (1) located on both sides of the support frame (6), and a tensioning wheel (22) is rotatably sleeved on one end of the rotating roller (11) away from the tightening adjustment mechanism (9), and the two tensioning wheels (22) are respectively and correspondingly in rolling contact with the inner side of the transmission belt (10); The support frame (6) can move upward along the cutting platform (1) through the tightening adjustment mechanism (9) to adjust the height under the upward extrusion force of the plate, and at the same time, the tightening adjustment mechanism (9) automatically drives the two rotating rollers (11) to move closer to or farther from each other under the height adjustment of the support frame (6), so as to correspondingly push the two sides of the transmission belt (10) to move closer to or farther from each other; One end of one of the conveying rollers in the conveying device (2) extending out of the cutting platform (1) is provided with a rotating seat (14), and a rotating wheel (15) is sleeved on the rotating seat (14); A transmission seat (12) is provided at one end of the transmission roller (7) located above the rotating seat (14) and extending out of the support frame (6), and two transmission wheels (13) are sleeved on the transmission seat (12), wherein one of the transmission wheels (13) and the rotating wheel (15) are driven by the transmission belt (10), and the other transmission wheel (13) is driven by the conveyor belt (8); The tightening adjustment mechanism (9) comprises two positioning rods (91) and two positioning blocks (92); a positioning groove (4) is provided on the surface of the cutting platform (1); the support frame (6) slides in the middle position of the positioning groove (4); and the top of the positioning block (92) is connected to the rotating roller (11); The two positioning rods (91) are respectively and correspondingly fixedly connected to the two side walls of the positioning groove (4), and the adjacent ends of the two positioning rods (91) are connected to the positioning block (92); A compression spring (93) sleeved on the positioning rod (91) is connected between the two positioning blocks (92) and the side wall of the positioning groove (4), and one end of the support frame (6) extending into the positioning groove (4) abuts against the two positioning blocks (92) respectively; The end of the support frame (6) extending into the positioning groove (4) is arranged in a trapezoidal shape, and the ends of the two positioning blocks (92) close to the support frame (6) each include an inclined section (921) and a straight section (922), and the inclined section (921) and the straight section (922) are connected to form a whole surface; The two straight sections (922) are parallel to each other, and a V-shaped structure capable of fitting against the bottom of the support frame (6) is formed between the two inclined sections (921).

2. The laser cutting automatic typesetting device according to claim 1, characterized in that: The elastic adjustment member (5) comprises a connecting rod (51), a guide rod (52) and a guide spring (53); a guide groove (16) is provided on the surface of the cutting platform (1); the guide rod (52) is installed in the corresponding guide groove (16); a guide block (54) is slidably connected to the guide rod (52); one end of the connecting rod (51) is hinged to the lateral limit rod (3), and the other end is hinged to the guide block (54); the guide spring (53) is sleeved on the guide rod (52); one end of the guide spring (53) is connected to the guide block (54), and the other end is connected to the side wall of the guide groove (16).

3. The laser cutting automatic typesetting device according to claim 2, characterized in that: A sliding groove (17) is provided on the surface of each of the lateral limiting rods (3); a sliding rod (18) is fixedly connected to the inner cavity of the sliding groove (17); a sliding block (19) is slidably connected to the sliding rod (18); one end of the sliding block (19) protruding from the surface of the lateral limiting rod (3) is hinged to the connecting rod (51); A telescopic spring (20) sleeved on the sliding rod (18) is connected between the sliding block (19) and the side wall of the sliding groove (17).

4. The laser cutting automatic typesetting device according to claim 2, characterized in that: A guide wheel (21) is provided at one end of each lateral limit rod (3) away from the hinge point, and an end of each lateral limit rod (3) facing the plate is provided in an outwardly protruding arc shape, and the outwardly protruding arc shape extends all the way to the end of the lateral limit rod (3).

5. The laser cutting automatic typesetting device according to claim 1, characterized in that: A slot (94) for the positioning rod (91) to be slidably inserted into is formed at one end of the two positioning blocks (92) that is away from each other.

6. The laser cutting automatic typesetting device according to claim 1, characterized in that: A fixing block (95) is provided on the side wall of one end of the support frame (6) inserted into the positioning groove (4), and a mounting groove (96) for the fixing block (95) to slide is provided on the side wall of the positioning groove (4).

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