Laser cutting device based on steel wire

Abstract

The invention provides a laser cutting device based on a steel wire, and belongs to the field of laser cutting, the laser cutting device comprises a base and a support, the support is arranged on the rear side of the top of the base, a laser cutting assembly is arranged on the front side of the support, and a positioning assembly is arranged in the middle of the top of the base. According to the invention, by arranging the positioning block and the adjusting block, in the process of measuring the length of the steel wire, the outer side wall of the positioning block is used as a positioning reference surface, and the magnetism of the adjusting block is utilized to generate attraction to the steel wire, so that the steel wire actively fits the positioning block, and the contact surface keeps certain pressure; therefore, errors caused by pressure changes of the feeding wheels or oil stains on the surfaces of the steel wires can be avoided, small displacement can be compensated by adsorption force, it is ensured that the attaching state is always stable, positioning drifting caused by incompact contact is avoided, the accuracy of the product length is improved, and good stability is kept.

Description

Technical Field

[0001] This application relates to the field of laser cutting technology, and in particular to a laser cutting device based on steel wire. Background Technology

[0002] Ferromagnetic steel wire is a thin and long metal wire made from steel through processes such as cold drawing or heat treatment. It is usually shipped in coils or strips and is widely used in machinery manufacturing, construction engineering, and daily necessities. In practical applications, it needs to be cut to a specific length according to specific needs. Traditional mechanical cutting methods have limitations when processing thin steel wires, while laser cutting has become a better choice due to its advantages of non-contact, high precision, and low thermal damage. In the existing laser cutting machine's method of selecting wire length, the wire passively comes into contact with the side wall of the baffle only through the squeezing action of the feeding wheel. There is no active connection between the wire and the baffle. This contact depends on accidental factors such as the squeezing force of the feeding wheel and the surface condition of the wire. It is prone to small gaps or momentary separation between the wire and the baffle due to factors such as fluctuations in squeezing force and changes in the friction coefficient of the wire surface. This leads to an increase in the length error of fixed-length cutting and affects the stability of product production. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a laser cutting device based on steel wire, so as to change the "passive extrusion bonding" of the contact surface between the steel wire and the baffle to "active adsorption bonding", thereby solving the problem of inaccurate positioning reference in the prior art.

[0004] To solve the above-mentioned technical problems, this application provides the following technical solution: A laser cutting device based on steel wire includes a base and a support. The support is provided on the top rear side of the base, a laser cutting component is provided on the front side of the support, and a positioning component is provided at the top middle position of the base. The laser cutting assembly includes a protective shell and a laser cutting head. The protective shell, which has an air inlet at the top, is slidably mounted on a bracket, and the laser cutting head is located at the bottom of the protective shell. The positioning component includes: a housing, an electric push rod, a positioning block, an adjusting block, and a limiting block. The housing, with its open top, is positioned directly below the protective shell. The electric push rod is located inside the lower part of the housing. The positioning block is connected to the top of the electric push rod. The magnetic adjusting block is slidably positioned inside the positioning block. The positioning block has a horizontally penetrating strip hole inside. The limiting block is located on the side wall of the housing opening away from the positioning block. The side of the box is also provided with a feeding assembly, which includes: a pallet, a mounting base, a conveying roller and a servo motor. The pallet is located above the side wall of the box, the mounting base is symmetrically arranged on the top of the pallet, the conveying roller is rotatably connected to the bottom of the mounting base through a bearing, and the servo motor establishes a transmission relationship with the conveying roller.

[0005] Preferably, the side wall of the positioning block facing the limiting block is tangent to the focal point of the laser cutting head, and both side walls of the positioning block are fitted to the inner side wall of the housing. The adjusting block is slidably disposed in the strip hole inside the positioning block. The side wall of the positioning block is also provided with a sliding groove. The side wall of the adjusting block is provided with a guide block, which is embedded in the sliding groove of the side wall of the positioning block.

[0006] Preferably, the inner sidewall of the box is also provided with a scraper, the upper surface of the scraper is inclined from the center to the side, and the outer sidewall of the scraper and the other sidewall of the adjusting block are arranged on the same vertical plane.

[0007] Preferably, the bottom of the box is also provided with a pressing block, the side wall of the pressing block is provided with an inclined surface, the side wall of the positioning block is provided with a slot, one side wall of the adjusting block is attached to the slot of the side wall of the positioning block, and the inclined surface of the pressing block is located directly below the slot of the side wall of the adjusting block. A spring is provided on the side of the adjusting block facing the central axis of the positioning block.

[0008] Preferably, the top of the positioning block is provided with a step, the vertical surface of the step is provided with a horizontally arranged wire hole, the top of the positioning block is provided with an air inlet, the bottom of the protective shell is provided with an air outlet, and the air outlet is positioned directly opposite the top air inlet of the positioning block.

[0009] Preferably, the protective shell further includes: a base plate and a sleeve, the base plate being disposed at the bottom of the protective shell, an air vent being provided on one side of the bottom of the base plate, the sleeve being disposed at the middle position of the base plate, and the laser cutting head being disposed at the middle position of the sleeve.

[0010] Preferably, a length-fixing component is also provided on the rear side of the housing. The length-fixing component includes: a slide rail, a lead screw, and a slider. The slide rail is connected to the upper rear side of the housing. The lead screw passes through the slide rail. The slider slides in cooperation with the slide rail. The bottom of the slider is attached to the upper surface of the pallet, and the bottom of the slider has a groove facing the conveyor roller.

[0011] Preferably, a discharge assembly is provided at the bottom of the pallet located at the rear end of the conveying direction. The discharge assembly includes: a mounting frame, a drive cylinder, a connecting block, a push plate, and a second spring. The mounting frame is fixedly installed at the bottom of the pallet. The drive cylinder is fixedly connected to the side wall of the mounting frame. The connecting block is fixed to the telescopic part of the drive cylinder. The push plate is engaged with one side of the connecting block through the through hole in the middle of the pallet. The second spring is located on the side of the connecting block facing away from the drive cylinder. The lower surface of the push plate is fitted to the upper surface of the support plate, and the surface of the push plate is provided with equally spaced threaded holes. The side wall of the connecting block is provided with threaded holes that match the push plate.

[0012] Preferably, the side wall of the pallet is provided with an air storage cylinder, and a piston is embedded in the end of the air storage cylinder. The piston is located on the moving path of the slider one, and the air storage cylinder is connected to the driving cylinder through a pipe.

[0013] Preferably, a second lead screw is provided on the back of the bracket, and a second slider is connected to the outside of the second lead screw. The second slider includes a protruding part that penetrates the strip-shaped hole in the middle of the bracket, and the protective shell is connected to the protruding part of the second slider penetrating the bracket.

[0014] In this invention, by setting a positioning block and an adjusting block, the outer wall of the positioning block is used as the positioning reference surface during the measurement of the steel wire length. The magnetic attraction of the adjusting block is used to make the steel wire actively adhere to the positioning block, and the contact surface maintains a certain pressure. This avoids errors caused by changes in the pressure of the feeding wheel or oil on the surface of the steel wire. The adsorption force can compensate for small displacements, ensuring that the adhesion state is always stable, avoiding positioning drift caused by poor contact, improving the accuracy of the product length, and maintaining good stability.

[0015] In this invention, by setting a positioning block, an electric push rod, and a scraper, the electric push rod can drive the positioning block to move in the vertical direction, thereby adjusting the position of the positioning reference surface relative to the steel wire. After accurately positioning the end face of the steel wire, the positioning reference surface of the positioning block moves away from the steel wire. The scraper cleans the positioning block to keep the positioning reference surface of the positioning block clean, thereby reducing the impact of impurities on accuracy when selecting the length of the steel wire.

[0016] In this invention, by setting a positioning block and a base plate, the positioning block is provided with an air inlet and a wire passage hole, and the air inlet and the wire passage hole are interconnected. The airflow blown out from the bottom of the protective shell can clean the steel wire in the wire passage hole in a non-contact manner, reduce impurities on the surface of the steel wire, and improve the cleanliness of the product. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0018] Figure 1 This is a schematic diagram of the overall structure in this application; Figure 2 This is a schematic diagram of the pallet structure in this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the box in this application; Figure 4 This is a schematic diagram of the positioning block structure in this application; Figure 5 This is a schematic diagram of the adjustment block structure in this application; Figure 6 This is a schematic diagram of the push plate structure in this application; Figure 7 This is a schematic diagram of the mounting frame structure in this application; Figure 8 This is a schematic diagram of the protective shell structure in this application; Figure 9 This is a schematic diagram of the support structure in this application; [Figure Labels] 1. Base; 101. Bracket; 102. Lead screw II; 103. Slider II; 2. Protective shell; 201. Base plate; 202. Sleeve; 203. Laser cutting head; 3. Housing; 301. Electric push rod; 302. Positioning block; 303. Adjusting block; 3031. Guide block; 3032. Spring I; 304. Limiting block; 305. Scraper; 306. Extrusion block; 4. Support plate; 401. Mounting base; 402. Conveying roller; 403. Servo motor; 5. Slide rail; 501. Lead screw I; 502. Slider I; 6. Mounting bracket; 601. Drive cylinder; 602. Connecting block; 603. Push plate; 604. Spring II; 7. Air storage tank; 701. Piston. Detailed Implementation

[0019] The following is a detailed description of a wire-based laser cutting device provided in this application, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of this application provides a laser cutting device based on steel wire, which includes a base 1 and a support 101. The support 101 is provided on the top rear side of the base 1, the laser cutting component is provided on the front side of the support 101, and the positioning component is provided at the top middle position of the base 1. The laser cutting assembly includes a protective shell 2 and a laser cutting head 203. The protective shell 2, which has an air inlet on the top, is slidably mounted on the bracket 101, and the laser cutting head 203 is mounted on the bottom of the protective shell 2. The positioning assembly includes: a housing 3, an electric push rod 301, a positioning block 302, an adjusting block 303, and a limiting block 304. The housing 3, with its open top, is located directly below the protective shell 2. The electric push rod 301 is located inside the lower part of the housing 3. The positioning block 302 is connected to the top of the electric push rod 301. The magnetic adjusting block 303 is slidably located inside the positioning block 302. The positioning block 302 has a horizontal through-hole inside. The limiting block 304 is located on the side wall of the opening of the housing 3 away from the positioning block 302. The side of the housing 3 is also provided with a feeding assembly, which includes: a pallet 4, a mounting base 401, a conveying roller 402 and a servo motor 403. The pallet 4 is located above the side wall of the housing 3. The mounting base 401 is symmetrically arranged on the top of the pallet 4. The conveying roller 402 is rotatably connected to the bottom of the mounting base 401 through a bearing. The servo motor 403 and the conveying roller 402 establish a transmission relationship. In use, this device supplies air to the protective housing 2 via an external pressurized air source. The bottom of the protective housing 2 has an air outlet, which is coaxially aligned with the cutting direction of the laser cutting head 203. One end of the steel wire to be cut is inserted into the gap between the two conveying rollers 402. For steel wires of different diameters, the appropriate diameter conveying roller 402 can be selected and replaced according to the thickness of the wire to achieve the desired effect. The servo motor 403 drives the conveying rollers 402 to rotate. The two opposing conveying rollers 402 rotate in opposite directions, conveying the steel wire to the top of the housing 3 and the limiting block 304. At this point, the electric push rod 301 drives the positioning block. 302 moves upward until the adjusting block 303 is above the opening of the box 3, so that the positioning block 302 and the adjusting block 303 are on the conveying path of the steel wire. Under the squeezing force of the conveying roller 402, the steel wire adheres to the outer wall of the positioning block 302. Under the magnetic attraction of the adjusting block 303, the steel wire actively adheres to the positioning block 302, and the contact surface maintains a certain pressure, thereby avoiding errors caused by changes in the pressure of the feeding wheel or oil on the surface of the steel wire. The adsorption force can compensate for small displacements, ensuring that the adhesion state is always stable, avoiding positioning drift caused by poor contact, improving the accuracy of product length, and maintaining good stability. After determining the end face position of the steel wire, the positioning block 302 moves downward into the housing 3 under the action of the electric push rod 301. The steel wire is stably maintained in position by the support of the limiting block 304. The distance between the limiting block 304 and the positioning block 302 is exactly equal to the spot diameter of the laser cutting head 203, thus avoiding any impact on the operation of the laser cutting head 203. The steel wire maintains a stable shape and position by the support of the limiting block 304. According to the needs and the cross-sectional shape of the steel wire, corresponding grooves can be opened on the limiting block 304 to further limit the position of the steel wire in the horizontal direction, and then the positioning block 302 is positioned in the vertical direction. The horizontal plane of the step portion of block 302 is tangent to the outer circumference of the steel wire. The wire passage hole of the positioning block 302 is located on the vertical plane of the step portion of the positioning block 302. The steel wire can pass through the positioning block 302 and continue to move under the action of the conveying roller 402. The moving distance is the length required to cut the steel wire. Then, the steel wire is cut by the laser cutting head 203 to obtain the selected length of steel wire. After the steel wire is cut, it stays on the pallet 4 on the other side of the box 3. The pallet 4 is also equipped with a conveying roller 402, which can continue to convey the cut steel wire to one side for a distance to achieve the effect of steel wire discharge.

[0021] In this embodiment, as Figures 3-9 As shown, the side wall of the positioning block 302 facing the limiting block 304 is tangent to the beam focal point of the laser cutting head 203, and both sides of the positioning block 302 are fitted to the inner side wall of the housing 3. The adjusting block 303 is slidably disposed in the strip hole inside the positioning block 302. The side wall of the positioning block 302 is also provided with a sliding groove. The side wall of the adjusting block 303 is provided with a guide block 3031, which is embedded in the sliding groove of the side wall of the positioning block 302. Since the side wall of the positioning block 302 serves as the reference surface for the end face of the positioning wire, the side wall is designed to be tangentially fitted with the beam focus of the laser cutting head 203. The beam focus of the laser cutting head 203 will not invade the top of the positioning block 302, thereby protecting the positioning block 302. The positioning block 302 is also limited by the housing 3, which reduces the shaking of the positioning block 302 and keeps the positioning block 302 in a vertical state, thus ensuring the stability of the positioning block 302 as a reference surface. The adjusting block 303 and the positioning block 302 are slidably engaged. When the positioning block 302 moves up to the position above the top opening of the housing 3, the adjusting block 303 can be slid towards the center of the positioning block 302, so that the adjusting block 303 is away from the edge of the positioning block 302. This reduces the attraction of the adjusting block 303 on the cutting debris attached to the outer wall of the positioning block 302, allowing some of the larger debris to fall off naturally. This also makes manual cleaning and maintenance more convenient and simple. The vertical and horizontal surfaces of the step portion of the positioning block 302 are provided with a groove with the groove opening facing upwards. This groove is used to receive debris blown out from the wire hole, reducing the amount of debris remaining on the horizontal surface of the step portion. When there is airflow blowing out from the wire hole, it can also ensure the cleanliness of the horizontal surface of the step portion, reducing the impact of impurities on the steel wire.

[0022] The inner wall of the housing 3 is also provided with a scraper 305. The upper surface of the scraper 305 is inclined from the center to the side. The outer wall of the scraper 305 and the other side wall of the adjusting block 303 are set on the same vertical plane. The scraper 305 installed below the housing 3 is used to clean impurities on the outer wall of the positioning block 302. Through the action of friction, the impurities are removed from the positioning reference surface of the positioning block 302, keeping the positioning reference surface of the positioning block 302 clean and reducing the impact of impurities on accuracy when the wire length is selected. The inclined surface on the scraper 305 meets the chip removal requirements. The scraped impurities are moved along the inclined surface of the scraper 305 by gravity and are less likely to stay on the scraper 305, thereby reducing the possibility of impurities being re-adsorbed onto the positioning block 302.

[0023] The bottom of the housing 3 is also provided with an extrusion block 306. The side wall of the extrusion block 306 is provided with an inclined surface. The side wall of the positioning block 302 is provided with a slot. One side wall of the adjusting block 303 is attached to the slot of the side wall of the positioning block 302. The inclined surface of the extrusion block 306 is located directly below the slot of the side wall of the adjusting block 303. A spring 3032 is provided on the side of the adjusting block 303 facing the central axis of the positioning block 302; As the electric push rod 301 drives the positioning block 302 to move downward, the positioning block 302 continuously moves towards the pressing block 306 until the positioning block 302 is engaged with the outside of the pressing block 306. After the pressing block 306 passes through the groove on the surface of the positioning block 302, it adheres to the outer wall of the adjusting block 303. As the positioning block 302 continues to move downward, the adjusting block 303 is pressed horizontally by the inclined surface of the pressing block 306. The adjusting block 303 moves towards the center of the positioning block 302. The guide block 3031 guides and limits the adjusting block 303. By increasing the distance between the adjusting block 303 and the outer wall of the positioning block 302, based on the characteristic that the magnetic field strength decreases with increasing distance, the attraction of the adjusting block 303 to the cutting debris attached to the outer wall of the positioning block 302 is weakened. With the help of the scraper 305, the positioning block 302 is cleaned more conveniently and efficiently, keeping the outer wall of the positioning block 302 clean. When the positioning block 302 disengages from the pressing block 306, the spring 3032 can promptly reset the position of the adjusting block 303. Furthermore, under the pressing force of the spring 3032, unnecessary shaking of the adjusting block 303 can be reduced, thus maintaining its stability.

[0024] The top of the positioning block 302 is provided with a step, and the vertical surface of the step is provided with a horizontally arranged wire hole. The top of the positioning block 302 is provided with an air inlet, and the bottom of the protective shell 2 is provided with an air outlet, which is positioned directly opposite the top air inlet of the positioning block 302. The diameter of the wire-passing hole on the positioning block 302 can be equal to the diameter of the steel wire to be cut, ensuring that the steel wire can pass smoothly through the wire-passing hole. When the external pressure air source supplies air to the inside of the protective shell 2, part of the airflow passes through the air outlet at the bottom of the protective shell 2 and enters the air inlet at the top of the positioning block 302. The air inlet at the top of the positioning block 302 is connected to the wire-passing hole. The airflow can clean the steel wire in the wire-passing hole without contact, reduce impurities on the surface of the steel wire, and improve the cleanliness of the product. An air outlet is provided at the lower outer side of the box 3 to facilitate the discharge of gas inside the box 3.

[0025] The protective shell 2 also includes: a base plate 201 and a sleeve 202. The base plate 201 is located at the bottom of the protective shell 2. An air vent is provided on one side of the bottom of the base plate 201. The sleeve 202 is located in the middle of the base plate 201. The laser cutting head 203 is located in the middle of the sleeve 202. The base plate 201 on the protective shell 2 defines the direction of airflow. The air outlet on the base plate 201 is set directly opposite the air inlet on the top of the positioning block 302, so that some airflow can enter the wire passage hole inside the positioning block 302 to clean the wire passage hole and the steel wire inside it. The sleeve 202 is designed with open ends, which can protect the laser cutting head 203. At the same time, there is a gap between the sleeve 202 and the laser cutting head 203, which allows some airflow to pass through the sleeve 202, which can cool and clean the laser cutting head 203 and ensure its normal operation.

[0026] The rear side of the housing 3 is also provided with a length-fixing component, which includes: slide rail 5, lead screw 501 and slider 502. The slide rail 5 is connected to the upper rear side of the housing 3. The lead screw 501 passes through the slide rail 5. The slider 502 slides and engages with the slide rail 5. The bottom of slider 502 is attached to the upper surface of the support plate 4, and the bottom of slider 502 is provided with a groove facing the conveyor roller 402. In actual use, lead screw 501 can be driven by an external motor and intelligently controlled by an external controller. When lead screw 501 rotates, it can adjust the position of slider 502 to above positioning block 302, so that the right side wall of slider 502 and the positioning reference surface of positioning block 302 are on the same vertical plane. After the positioning block 302 determines the end face position of the steel wire, positioning block 302 moves downward. As the conveying roller 402 conveys the steel wire, slider 502 moves synchronously along the conveying direction. The conveying roller 402 keeps the steel wire in contact with the outer side wall of slider 502. The length of the steel wire conveyed is determined according to the distance the slider 502 moves, so as to control the cutting length of the steel wire. Slider 502 can also be made of magnetic material to maintain a stable connection between the steel wire and slider 502 using magnetism. A roller is installed at the top center of the pallet 4. The roller can reduce the resistance during the steel wire conveying process, convert sliding friction into rolling friction, and reduce the wear of the steel wire.

[0027] A discharge assembly is provided at the bottom of the pallet 4 at the rear end of the conveying direction. The discharge assembly includes: a mounting frame 6, a drive cylinder 601, a connecting block 602, a push plate 603, and a second spring 604. The mounting frame 6 is fixedly installed at the bottom of the pallet 4. The drive cylinder 601 is fixedly connected to the side wall of the mounting frame 6. The connecting block 602 is fixed to the telescopic part of the drive cylinder 601. The push plate 603 is engaged with one side of the connecting block 602 through the through hole in the middle of the pallet 4. The second spring 604 is located on the side of the connecting block 602 facing away from the drive cylinder 601. The lower surface of the push plate 603 is attached to the upper surface of the support plate 4. The surface of the push plate 603 is provided with threaded holes that are evenly spaced. The side wall of the connecting block 602 is provided with threaded holes that match the push plate 603. The side wall of the support plate 4 is provided with an air storage cylinder 7, and a piston 701 is embedded in the end of the air storage cylinder 7. The piston 701 is located on the moving path of the slider 502. The air storage cylinder 7 is connected to the drive cylinder 601 through a pipe. After determining the length of the steel wire, it is cut by the laser cutting head 203. The cut steel wire is then conveyed to one side by the conveying roller 402 for a distance. At this time, the slider 502 moves towards the air storage cylinder 7 and squeezes the piston 701, forcing the air in the air storage cylinder 7 into the drive cylinder 601. When the drive cylinder 601 extends, it overcomes the squeezing force of the spring 604 and drives the connecting block 602 and the push plate 603 to move horizontally, pushing the cut steel wire to the edge of the tray 4 and dropping it. The steel wire can be collected by placing a collection basket on the edge of the tray 4. The distance between the air tank 7 and the push plate 603 is greater than the width of the slider 502, thereby avoiding interference of the slider 502 with the movement of the push plate 603. The surface of the push plate 603 is provided with equally spaced threaded holes. The push plate 603 is connected to the connecting block 602 by bolts. By changing different threaded holes on the push plate 603, the position of the push plate 603 relative to the connecting block 602 can be adjusted, so that the push plate 603 is closer to the slider 502, and the slider 502 is better separated from the steel wire.

[0028] A lead screw 102 is provided on the back of the bracket 101. A slider 103 is connected to the outside of the lead screw 102. The slider 103 includes a protruding part that passes through the strip hole in the middle of the bracket 101. The protective shell 2 is connected to the protruding part of the slider 103 that passes through the bracket 101. The lead screw 102 can be rotated by an external power device. By rotating the lead screw, the position of the slider 103 relative to the bracket 101 can be adjusted, and the height of the laser cutting head 203 can be adjusted to match the cutting needs.

Claims

1. A laser cutting device based on steel wire, comprising a base (1) and a support (101), wherein the support (101) is provided on the rear side of the top of the base (1), characterized in that, A laser cutting assembly is provided on the front side of the bracket (101), and a positioning assembly is provided at the top center of the base (1). The laser cutting assembly includes a protective shell (2) and a laser cutting head (203). The protective shell (2), which has an air inlet on the top, is slidably mounted on a bracket (101), and the laser cutting head (203) is mounted on the bottom of the protective shell (2). The positioning assembly includes: a housing (3), an electric push rod (301), a positioning block (302), an adjusting block (303), and a limiting block (304). The housing (3), with its top open, is located directly below the protective shell (2). The electric push rod (301) is located inside the lower part of the housing (3). The positioning block (302) is connected to the top of the electric push rod (301). The magnetic adjusting block (303) is slidably located inside the positioning block (302). The positioning block (302) has a horizontally penetrating strip hole inside. The limiting block (304) is located on the side wall of the housing (3) away from the positioning block (302) at the opening. The side of the box (3) is also provided with a feeding assembly, which includes: a pallet (4), a mounting base (401), a conveying roller (402) and a servo motor (403). The pallet (4) is located above the side wall of the box (3). The mounting base (401) is symmetrically arranged on the top of the pallet (4). The conveying roller (402) is rotatably connected to the bottom of the mounting base (401) through a bearing. The servo motor (403) and the conveying roller (402) establish a transmission relationship.

2. The laser cutting device based on steel wire according to claim 1, characterized in that: The side wall of the positioning block (302) facing the limiting block (304) is tangent to the beam focus of the laser cutting head (203), and both sides of the positioning block (302) are fitted to the inner side wall of the box (3). The adjusting block (303) is slidably disposed in the strip hole inside the positioning block (302). The side wall of the positioning block (302) is also provided with a sliding groove. The side wall of the adjusting block (303) is provided with a guide block (3031). The guide block (3031) is embedded in the sliding groove of the side wall of the positioning block (302).

3. The laser cutting device based on steel wire according to claim 2, characterized in that: The inner wall of the box (3) is also provided with a scraper (305). The upper surface of the scraper (305) is inclined from the center to the side. The outer wall of the scraper (305) and the other side wall of the adjusting block (303) are set on the same vertical plane.

4. The laser cutting device based on steel wire according to claim 3, characterized in that: The bottom of the box (3) is also provided with an extrusion block (306), the side wall of the extrusion block (306) is provided with an inclined surface, the side wall of the positioning block (302) is provided with a slot, one side wall of the adjusting block (303) is attached to the slot of the side wall of the positioning block (302), and the inclined surface of the extrusion block (306) is located directly below the slot of the side wall of the adjusting block (303). A spring (3032) is provided on the side of the adjusting block (303) facing the central axis of the positioning block (302).

5. The laser cutting device based on steel wire according to claim 4, characterized in that: The top of the positioning block (302) is provided with a step, and the vertical surface of the step is provided with a horizontally arranged wire hole. The top of the positioning block (302) is provided with an air inlet, and the bottom of the protective shell (2) is provided with an air outlet. The air outlet is positioned directly opposite the top air inlet of the positioning block (302).

6. The laser cutting device based on steel wire according to claim 1, characterized in that: The protective shell (2) further includes: a base plate (201) and a sleeve (202). The base plate (201) is located at the bottom of the protective shell (2). An air vent is provided on one side of the bottom of the base plate (201). The sleeve (202) is located in the middle of the base plate (201). The laser cutting head (203) is located in the middle of the sleeve (202).

7. The laser cutting device based on steel wire according to claim 1, characterized in that: The rear side of the housing (3) is also provided with a length-fixing component, which includes: a slide rail (5), a lead screw (501) and a slider (502). The slide rail (5) is connected to the upper rear side of the housing (3). The lead screw (501) passes through the slide rail (5). The slider (502) slides and engages with the slide rail (5). The bottom of the slider (502) is attached to the upper surface of the tray (4), and the bottom of the slider (502) has a groove facing the conveyor roller (402).

8. The laser cutting device based on steel wire according to claim 7, characterized in that: A discharge assembly is provided at the bottom of the pallet (4) located at the rear end of the conveying direction. The discharge assembly includes: a mounting frame (6), a drive cylinder (601), a connecting block (602), a push plate (603), and a second spring (604). The mounting frame (6) is fixedly installed at the bottom of the pallet (4). The drive cylinder (601) is fixedly connected to the side wall of the mounting frame (6). The connecting block (602) is fixed to the telescopic part of the drive cylinder (601). The push plate (603) is engaged with one side of the connecting block (602) through the through hole in the middle of the pallet (4). The second spring (604) is located on the side of the connecting block (602) facing away from the drive cylinder (601). The lower surface of the push plate (603) is attached to the upper surface of the support plate (4). The surface of the push plate (603) is provided with threaded holes that are evenly spaced. The side wall of the connecting block (602) is provided with threaded holes that match the push plate (603).

9. The laser cutting device based on steel wire according to claim 8, characterized in that: The side wall of the pallet (4) is provided with an air storage cylinder (7), and a piston (701) is embedded in the end of the air storage cylinder (7). The piston (701) is located on the moving path of the slider (502), and the air storage cylinder (7) is connected to the drive cylinder (601) through a pipe.

10. The laser cutting device based on steel wire according to claim 1, characterized in that: The back of the bracket (101) is provided with a second lead screw (102), and the outer side of the second lead screw (102) is connected to a second slider (103). The second slider (103) includes a protruding part that penetrates the middle strip hole of the bracket (101). The protective shell (2) is connected to the second slider (103) through the protruding part of the bracket (101).

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