Full-automatic laser cutting and welding equipment for protective net

Abstract

The embodiment of the invention relates to the technical field of laser cutting and welding, and provides protective net full-automatic laser cutting and welding equipment which comprises a laser cutting and welding equipment body and further comprises a welding box table, a material conveying and positioning assembly and a two-way position adjusting assembly, and the welding box table is arranged on the laser cutting and welding equipment body; two symmetrically-arranged conveying mechanisms are arranged on the welding box table and used for conveying a protective net, a welding cutting cavity is formed between the two conveying mechanisms, the conveying positioning assemblies penetrate through the welding box table and are arranged on the welding box table in a sliding mode, and conveying positioning systems are arranged on the two sides of each conveying mechanism. The two material conveying positioning assemblies located on the same side of the two material conveying mechanisms are connected through a material conveying position adjusting plate. By means of the technical scheme, the problem that in the prior art, when full-automatic laser cutting and welding equipment for the protective nets is used for conveying the protective nets of various specifications, the conveying stability is poor is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of laser cutting and welding technology, specifically to a fully automatic laser cutting and welding equipment for protective netting. Background Technology

[0002] Protective netting, a type of metal mesh structure widely used in construction sites, road barriers, sports facilities, and safety protection, typically requires precise cutting and welding of metal wires or profiles during its manufacturing process to form the required mesh structure and size. With the development of automation technology, fully automatic laser cutting and welding equipment has become an important piece of equipment in the production of protective netting. This type of equipment usually integrates functions such as automatic feeding, positioning, laser cutting, laser welding, and finished product unloading of metal materials, enabling efficient and continuous production of protective netting.

[0003] Existing fully automated laser cutting and welding equipment for protective netting typically includes a feeding and conveying system, a laser cutting system, a laser welding system, a control system, and a vision positioning system. The feeding and conveying system usually employs a conveyor belt to transport the metal wires or profiles to be processed from the storage area to the processing station for initial material positioning. The laser cutting system typically includes a high-power laser, a cutting head, and a CNC motion system, which can perform contour cutting or segmented cutting of the metal material according to a preset program. The laser welding system, after cutting or at an independent station, uses a laser welding head to weld the grid intersections or connecting parts to form a stable mesh structure. The control system and vision positioning system integrate motion control and process parameter adjustment through a PLC or CNC system; some equipment is equipped with vision sensors to assist in positioning.

[0004] However, in actual production, due to the diverse sizes and specifications of protective nets, such as the large differences in mesh side length, wire diameter, and overall width, existing equipment often uses clamping rollers or guide grooves with fixed spacing for material handling. When conveying smaller protective nets (such as narrow widths or thin wire diameters), insufficient clamping force or too small contact area can easily cause the material to skew or vibrate during conveying. When conveying larger protective nets, structural interference or uneven pressure distribution may cause local deformation or jamming. Furthermore, after clamping the protective net, traditional synchronous belt or chain drive conveying methods often struggle to maintain speed uniformity and synchronization when dealing with protective nets of different sizes and weights. For lightweight, small-sized protective nets, insufficient friction can easily cause slippage or lag. For large, heavy protective nets, insufficient driving torque or insufficient rigidity of transmission components may cause speed fluctuations and pauses during conveying. Summary of the Invention

[0005] To overcome the above-mentioned defects, the present invention provides a fully automatic laser cutting and welding equipment for protective nets, which solves the problem mentioned in the background art that the existing fully automatic laser cutting and welding equipment for protective nets has poor conveying stability when conveying protective nets of various specifications.

[0006] According to one aspect, at least one embodiment of the present invention provides a fully automatic laser cutting and welding equipment for protective netting, including a laser cutting and welding equipment body, and further including a welding box, a material feeding and positioning component and a bidirectional adjustment component; The welding box is mounted on the body of the laser cutting and welding equipment. The welding box is provided with two symmetrically arranged material conveying mechanisms for conveying the protective net. A welding and cutting cavity is formed between the two material conveying mechanisms. The material feeding and positioning components are slidably disposed on the welding box platform. Each material feeding mechanism has a material feeding and positioning system on both sides. The two material feeding and positioning components located on the same side of the two material feeding mechanisms are connected by a material feeding adjustment plate. The bidirectional adjustment component is disposed inside the welding box and connected to the two material conveying adjustment plates, enabling the material conveying positioning components on both sides of the material conveying mechanism to move relative to each other or back to back.

[0007] Based on the aforementioned scheme, the material conveying mechanism includes a material conveying shaft and a material conveying power unit; The material conveying shafts are provided in a plurality of manner and are arranged in a line at equal intervals within the welding box. Each material conveying shaft is provided with a material conveying roller, and one end of the material conveying roller can penetrate to the upper surface of the welding box. The plurality of material conveying rollers form a material conveying platform. The material conveying power unit is mounted on the welding box platform and connected to several material conveying shafts, which can drive the material conveying shafts to rotate.

[0008] Furthermore, based on the aforementioned scheme, the material conveying power unit includes a power motor and a transmission belt assembly; The power motor is mounted on the welding box platform; The transmission belt assembly comprises several belts, which are configured to drive two adjacent conveyor shafts and one of the conveyor shafts and the output end of the power motor to drive the several conveyor shafts to rotate synchronously, in the same direction and at the same speed.

[0009] As a preferred technical solution of the present invention, the material conveying and positioning assembly includes a mesh edge traction plate, a positioning frame, and a positioning conveying unit; The mesh edge traction plate is provided in several parts. The mesh edge traction plate is slidably disposed on the welding box platform through and along the axis of the material conveying shaft. The mesh edge traction plate is located between two adjacent material conveying shafts. The material conveying adjustment plate is connected to the mesh edge traction plate. The positioning frame is connected to the mesh edge traction plate through a number of edge limiting parts that correspond one-to-one with the mesh edge traction plate; The positioning conveying unit is provided in several parts, and each positioning conveying unit corresponds to one of the conveying rollers. The positioning conveying unit is set on the positioning frame.

[0010] Furthermore, based on the aforementioned solution, the positioning and conveying unit includes a positioning cylinder, a positioning pressure sensor, a positioning frame, and a positioning roller; The positioning cylinder is mounted on the positioning frame; The positioning pressure sensor is installed at the output end of the positioning cylinder; The positioning frame is disposed on the detection end of the positioning pressure sensor; The positioning roller is rotatably mounted on the positioning frame and is located above the feeding roller.

[0011] Furthermore, based on the previous solution, the edge limiting part includes a limiting shaft and a limiting roller; The limiting shaft is disposed between the positioning frame and the mesh edge traction plate; The limiting roller is rotatably mounted on the limiting shaft.

[0012] Based on the aforementioned scheme, the bidirectional adjustment assembly includes a bidirectional adjustment lead screw and an adjustment motor; The bidirectional adjusting screw is rotatably mounted inside the welding box. Two adjusting ball nut groups with relative movement are driven on the bidirectional adjusting screw. The adjusting ball nut groups correspond one-to-one with the material conveying adjusting plate and are connected to the material conveying adjusting plate. The adjustment motor is installed on one side of the welding box, and the output end of the adjustment motor is connected to one end of the bidirectional adjustment lead screw.

[0013] Based on the aforementioned scheme, it is further explained that the feeding rollers near both sides of the welding and cutting cavity are equipped with material clamping and fixing components; The clamping and securing assembly includes a clamping and securing section and a securing and adjusting section; The clamping and fixing part is set on the welding box platform and is used to clamp and fix the protective net on both sides of the welding and cutting cavity. The material fixing adjustment part is disposed on the positioning frame and is used to adjust the position of the clamping material fixing part.

[0014] Furthermore, based on the aforementioned solution, the clamping and fixing part includes a fixing support rod and a fixing plate; Two solid material support rods are provided, and the solid material support rods are arranged on the welding box platform. The material conveying roller is located between the two solid material support rods. The solid plate is slidably mounted on the two solid support rods, and a return spring is provided between each solid support rod and the solid plate.

[0015] Furthermore, based on the aforementioned scheme, the solid material adjusting unit includes an adjusting cylinder, an adjusting pressure sensor, and an adjusting block; The adjustment cylinder is mounted on the positioning frame; The adjustment pressure sensor is installed on the output end of the adjustment cylinder; The adjusting block is disposed on the detection end of the adjusting pressure sensor. The adjusting block is located above the solid plate and can squeeze the solid plate to move towards the conveying roller.

[0016] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, by setting up the synergistic effect of the bidirectional adjustment component and the material feeding and positioning component, the positions of the positioning and conveying parts on both sides and the edge limiting part can be dynamically adjusted according to the width of the protective net, so as to realize flexible adaptive clamping of protective nets of different widths. The positioning pressure sensor in the positioning and conveying part can monitor and adjust the clamping force on the net surface in real time to ensure that the lightweight protective net does not slip and the heavy protective net does not deform, thereby maintaining the stability of the material posture during the conveying process and reducing the phenomena of skew, shaking or jamming.

[0017] 2. In this invention, by setting up a conveying platform composed of several conveying rollers and realizing the synchronous, unidirectional, and same-speed rotation of all conveying shafts through a transmission belt group, a continuous and stable conveying surface can be formed. This conveying method can not only provide uniformly distributed support force for the protective net and avoid deformation caused by local stress concentration, but also ensure that protective nets of different sizes and weights have the same speed, no lag or fluctuation during the conveying process, thus improving the synchronicity and continuity of the overall conveying. 3. In this invention, by setting an edge limiting part in the material feeding and positioning component, the two sides of the protective net can be physically guided and limited during the conveying process to prevent lateral deviation during the conveying process. At the same time, clamping and fixing components are set on both sides of the welding and cutting cavity. The fixing plate is driven by the fixing and adjusting part to press the edge of the protective net, which can rigidly fix the local area of ​​the protective net processing area. Under the action of the dual protection mechanism, the position accuracy and posture stability of the protective net at the laser cutting and welding station can be ensured, which is conducive to improving the processing accuracy and weld quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a fully automatic laser cutting and welding equipment for protective netting according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the welding box, the material conveying mechanism, the material conveying positioning component, the material conveying adjustment plate and the bidirectional adjustment component in one embodiment of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a partial cross-sectional structural diagram showing the cooperation of the welding box, the material conveying mechanism, the material conveying positioning component, the material conveying adjustment plate, and the bidirectional adjustment component in one embodiment of the present invention. Figure 5 For the present invention Figure 4 A magnified structural diagram of section B in the middle; Figure 6 This is a schematic diagram of the material feeding and positioning component in one embodiment of the present invention; Figure 7 This is a schematic diagram of the positioning and conveying unit in one embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the material feeding adjustment plate, the mesh edge traction plate and the bidirectional adjustment component in one embodiment of the present invention.

[0020] In the diagram: 001, Laser cutting and welding equipment body; 002, Material conveying mechanism; 003, Material conveying and positioning assembly; 004, Bidirectional adjustment assembly; 1. Welding box platform; 2. Material conveying and adjusting plate; 3. Material conveying shaft; 4. Material conveying roller; 5. Power motor; 6. Transmission belt assembly; 7. Mesh edge traction plate; 8. Positioning frame; 9. Positioning cylinder; 10. Positioning pressure sensor; 11. Positioning frame; 12. Positioning roller; 13. Limiting shaft; 14. Limiting roller; 15. Bidirectional adjusting screw; 16. Adjusting ball nut assembly; 17. Adjusting motor; 18. Material fixing support rod; 19. Material fixing plate; 20. Return spring; 21. Adjusting cylinder; 22. Adjusting pressure sensor; 23. Adjusting block. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-8As shown, it illustrates a fully automatic laser cutting and welding equipment for protective netting according to an embodiment of the present invention, which solves the problems of poor conveying stability, easy skewing, shaking or jamming caused by the variety of protective netting specifications in existing equipment.

[0028] The equipment of the present invention mainly includes a laser cutting and welding equipment body 001, a welding box 1, a material feeding and positioning component 003, and a bidirectional adjustment component 004.

[0029] As described above, the welding platform 1 is fixedly mounted on the laser cutting and welding equipment body 001. The laser cutting and welding equipment body 001 is a device used for cutting and welding protective nets in the prior art. Two sets of feeding mechanisms 002 are symmetrically arranged on the welding platform 1 along its length direction. A through welding and cutting cavity is formed between the two sets of feeding mechanisms 002. Laser processing is carried out in this area. The feeding mechanism 002 includes a feeding shaft 3 and a feeding power unit. There are several feeding shafts 3, which are equidistantly arranged in a straight line inside the welding platform 1. Each feeding shaft 3 is equipped with a feeding roller 4, and one end of the feeding roller 4 can penetrate to the upper surface of the welding platform 1. Several feeding rollers 4 form a feeding platform. The feeding power unit is mounted on the welding platform 1 and connected to several feeding shafts 3, which can drive the feeding shafts 3 to rotate.

[0030] Specifically, the top of the conveying roller 4 protrudes from the upper surface of the welding box platform 1, together forming a continuous and flat conveying platform for supporting the protective net.

[0031] The material conveying power unit includes a power motor 5 and a transmission belt group 6. The power motor 5 is mounted on the welding box 1. There are several transmission belt groups 6. The several transmission belt groups 6 are connected between two adjacent material conveying shafts 3 and the output end of one of the material conveying shafts 3 and the power motor 5, so as to drive the several material conveying shafts 3 to rotate synchronously, in the same direction and at the same speed.

[0032] Specifically, by starting the power motor 5, the output end of the power motor 5 can drive several material conveying shafts 3 to rotate through the transmission belt group 6, thereby driving all material conveying rollers 4 to rotate synchronously, in the same direction, and at the same speed, providing uniform and stable conveying power for the protective net.

[0033] To accommodate protective nets of different widths, this invention provides an adjustable-width feeding and positioning assembly 003. The feeding and positioning assembly 003 includes a net edge traction plate 7, a positioning frame 8, and a positioning conveying section. Several net edge traction plates 7 are provided, and the net edge traction plates 7 are slidably mounted on the welding box platform 1 along the axis of the feeding shaft 3. The net edge traction plates 7 are located between two adjacent feeding shafts 3. The feeding adjustment plate 2 is connected to several net edge traction plates 7. The positioning frame 8 is connected to the net edge traction plates 7 through several edge limiting parts that correspond one-to-one with the net edge traction plates 7. Several positioning conveying sections are provided, and the positioning conveying sections correspond one-to-one with the feeding rollers 4. The positioning conveying sections are mounted on the positioning frame 8.

[0034] Specifically, the aforementioned mesh edge traction plate 7 is a long strip plate, the number of which corresponds to the gap between the conveying rollers 4. Each mesh edge traction plate 7 vertically penetrates the surface of the welding box 1 and can slide along the width of the equipment. The bottoms of all mesh edge traction plates 7 located on the same side are connected as one piece by a horizontal conveying adjustment plate 2. The positioning frame 8 is connected to the top of the corresponding mesh edge traction plate 7 through several edge limiting parts. The number of positioning conveying parts corresponds one-to-one with the conveying rollers 4 and is installed on the positioning frame 8.

[0035] The aforementioned positioning and conveying unit includes a positioning cylinder 9, a positioning pressure sensor 10, a positioning frame 11, and a positioning roller 12. The positioning cylinder 9 is mounted on the positioning frame 8, the positioning pressure sensor 10 is mounted on the output end of the positioning cylinder 9, the positioning frame 11 is set on the detection end of the positioning pressure sensor 10, and the positioning roller 12 is rotatably mounted on the positioning frame 11, with the positioning roller 12 located above the conveying roller 4.

[0036] During operation, the output end of the positioning cylinder 9 can drive the positioning roller 12 to press down through the positioning frame 11. The positioning pressure sensor 10 monitors the pressure on the mesh surface in real time and feeds it back to the control system. The control system can dynamically adjust the downward pressure accordingly to ensure that the lightweight mesh does not slip and the heavy mesh does not deform.

[0037] The aforementioned edge limiting part includes a limiting shaft 13 and a limiting roller 14. The limiting shaft 13 is disposed between the positioning frame 8 and the net edge traction plate 7. The limiting roller 14 is rotatably disposed on the limiting shaft 13. During the conveying process, the side of the protective net contacts the limiting roller 14 and causes it to roll, thereby achieving physical guidance and lateral limiting to prevent deviation.

[0038] The aforementioned bidirectional adjustment component 004 is installed inside the welding box 1 and is used to synchronously adjust the distance between the two sets of material feeding and positioning components 003. The bidirectional adjustment component 004 includes a bidirectional adjustment screw 15 and an adjustment motor 17. The bidirectional adjustment screw 15 is rotatably installed inside the welding box 1. Two relative moving adjustment ball nut groups 16 are driven on the bidirectional adjustment screw 15. The adjustment ball nut groups 16 correspond one-to-one with the material feeding and adjusting plate 2 and are connected to the material feeding and adjusting plate 2. The adjustment motor 17 is installed on one side of the welding box 1, and the output end of the adjustment motor 17 is connected to one end of the bidirectional adjustment screw 15.

[0039] Specifically, when the adjusting motor 17 rotates, it drives the bidirectional adjusting screw 15 to rotate, causing the two adjusting ball nut assemblies 16 to move their respective material feeding and positioning components 003 in opposite directions or back to back, thereby quickly adapting to protective nets of different widths.

[0040] To further ensure the positioning accuracy during processing, a clamping and fixing assembly is provided at the position of the feeding rollers 4 near both sides of the welding and cutting cavity. The clamping and fixing assembly includes a clamping and fixing part and a fixing adjustment part. The clamping and fixing part is set on the welding box 1 and is used to clamp and fix the protective nets on both sides of the welding and cutting cavity. The fixing adjustment part is set on the positioning frame 8 and is used to adjust the position of the clamping and fixing part.

[0041] The clamping and fixing part includes a fixing support rod 18 and a fixing plate 19. There are two fixing support rods 18, which are set on the welding box 1. The feeding roller 4 is located between the two fixing support rods 18. The fixing plate 19 passes through and is slidably set on the two fixing support rods 18. Each fixing support rod 18 is provided with a return spring 20 between itself and the fixing plate 19.

[0042] The solid material adjustment unit includes an adjustment cylinder 21, an adjustment pressure sensor 22, and an adjustment block 23. The adjustment cylinder 21 is mounted on the positioning frame 8. The adjustment pressure sensor 22 is located on the output end of the adjustment cylinder 21. The adjustment block 23 is located on the detection end of the adjustment pressure sensor 22. The adjustment block 23 is located above the solid material plate 19 and can squeeze the solid material plate 19 to move towards the conveying roller 4.

[0043] Specifically, the solid plate 19 is horizontally set and passes through two solid support rods 18, and can slide up and down along them. Each solid support rod 18 is fitted with a return spring 20, which provides an upward elastic return force for the solid plate 19. Under normal conditions, the solid plate 19 is raised and does not interfere with the conveying. When the protective net reaches the processing position, the adjusting cylinder 21 is activated, driving the adjusting block 23 to press down the solid plate 19, so that the solid plate 19 presses the edge of the protective net onto the conveying roller 4. The adjusting pressure sensor 22 controls the pressing force to achieve local rigid fixation of the processing area. After processing is completed, the adjusting cylinder 21 retracts, and the solid plate 19 is reset and released under the action of the return spring 20.

[0044] The specific workflow is as follows: First, based on the width of the protective net to be processed, start the adjustment motor 17, and drive the material feeding and positioning components 003 on both sides to move to the appropriate distance through the bidirectional adjustment screw 15.

[0045] Next, start the power motor 5, and all the conveying rollers 4 rotate synchronously to convey the protective net.

[0046] While the protective net is being conveyed, the positioning rollers 12 of the positioning conveyor on both sides adaptively press the net surface under pressure feedback control, and the limiting rollers 14 of the edge limiting part guide the side of the protective net. When the area of ​​the protective net to be processed reaches below the welding and cutting cavity, the conveying stops, and the clamping and fixing components on both sides of the area move to locally press and fix the protective net.

[0047] Subsequently, the laser cutting and welding system performs precise operations.

[0048] Once completed, the clamping and securing components release, the conveying continues, and the cycle repeats for the next workstation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A full-automatic laser cutting and welding equipment for protective net, comprising a laser cutting and welding equipment body (001), characterized in that, Also include: The welding box table (1) is arranged on the laser cutting and welding equipment body (001), and the welding box table (1) is provided with two symmetrical material conveying mechanisms (002) for conveying the protective net, and a welding and cutting cavity is formed between the two material conveying mechanisms (002); The material positioning assembly (003) is arranged on the welding box table (1) and is arranged on the welding box table (1) and is arranged on the welding box table (1). Each of the two sides of the material conveying mechanism (002) is provided with a material conveying positioning system, and the two material conveying positioning assemblies (003) on the same side of the two material conveying mechanisms (002) are connected through a material conveying positioning plate (2); The bidirectional positioning assembly (004) is arranged in the welding box table (1) and is connected with the two material conveying positioning plates (2), and the material conveying positioning assemblies (003) on the two sides of the material conveying mechanism (002) can be opposite or opposite.

2. The full-automatic laser cutting and welding equipment for the protective screen according to claim 1, characterized in that, The material conveying mechanism (002) comprises: A plurality of material conveying shafts (3) are arranged in the welding box table (1) in a linear and equidistant rotating manner, a material conveying roller (4) is arranged on each material conveying shaft (3), one end of the material conveying roller (4) can penetrate the upper surface of the welding box table (1), and a plurality of material conveying rollers (4) form a material conveying platform; The material conveying power part is arranged on the welding box table (1) and connected with the plurality of material conveying shafts (3), which can drive the material conveying shaft (3) to rotate.

3. The full-automatic laser cutting and welding equipment for the protective screen according to claim 2, characterized in that, The material conveying power part comprises: A power motor (5) is installed on the welding box table (1); A plurality of transmission belt groups (6) are arranged between adjacent two material conveying shafts (3) and one of the material conveying shafts (3) and the output end of the power motor (5), which are used to drive a plurality of material conveying shafts (3) to rotate synchronously, in the same direction and at the same speed.

4. The full-automatic laser cutting and welding equipment for the protective screen according to claim 3, characterized in that, The material conveying positioning assembly (003) comprises: A plurality of net edge traction plates (7) are arranged on the welding box table (1) penetrating and sliding along the axis of the material conveying shaft (3), the net edge traction plate (7) is located between adjacent two material conveying shafts (3), the material conveying positioning plate (2) is connected with a plurality of net edge traction plates (7); The positioning frame (8) is connected with the net edge traction plate (7) through a plurality of edge limiting parts corresponding to the net edge traction plate (7); A plurality of positioning conveying parts are arranged on the positioning frame (8).

5. The full-automatic laser cutting and welding equipment for the protective screen according to claim 4, characterized in that, The positioning conveying part comprises: A positioning cylinder (9) is installed on the positioning frame (8); A positioning pressure sensor (10) is installed on the output end of the positioning cylinder (9); A positioning frame (11) is arranged on the detection end of the positioning pressure sensor (10); A positioning roller (12) is rotatably arranged on the positioning frame (11), and the positioning roller (12) is located above the material conveying roller (4).

6. The full-automatic laser cutting and welding equipment for the protective screen according to claim 5, characterized in that, The edge limiting part comprises: A limiting shaft (13) is arranged between the positioning frame (8) and the net edge traction plate (7); A limiting roller (14) is rotatably arranged on the limiting shaft (13).

7. The full-automatic laser cutting and welding equipment for the protective screen according to claim 6, characterized in that, The bidirectional positioning assembly (004) comprises: A bidirectional positioning screw (15) is rotatably arranged in the welding box table (1), two opposite motion positioning ball nut groups (16) are drivenly arranged on the bidirectional positioning screw (15), the positioning ball nut groups (16) are in one-to-one correspondence with the material conveying positioning plates (2) and are connected with the material conveying positioning plates (2); A positioning motor (17) is installed on one side of the welding box table (1), and an output end of the positioning motor (17) is connected with one end of the bidirectional positioning screw (15).

8. The full-automatic laser cutting and welding equipment for the protective screen according to claim 7, characterized in that, The material conveying rollers (4) near both sides of the welding and cutting cavity are each provided with a material clamping and fixing assembly; The material clamping and fixing assembly comprises: A material clamping and fixing part is arranged on the welding box table (1) and is used for clamping and fixing the protective net on both sides of the welding and cutting cavity; A material fixing positioning part is arranged on the positioning frame (8) and is used for adjusting the position of the material clamping and fixing part.

9. The full-automatic laser cutting and welding equipment for the protective net according to claim 8, characterized in that, The material clamping and fixing part comprises: Two material supporting rods (18) are arranged on the welding box table (1), and the material conveying rollers (4) are located between the two material supporting rods (18); A material plate (19) is arranged on the two material supporting rods (18) in a penetrating and sliding manner, and a reset spring (20) is arranged between each material supporting rod (18) and the material plate (19).

10. The full-automatic laser cutting and welding equipment for the protective net according to claim 9, characterized in that, The material fixing positioning part comprises: A positioning cylinder (21) is installed on the positioning frame (8); A positioning pressure sensor (22) is arranged on an output end of the positioning cylinder (21); A positioning block (23) is arranged on a detection end of the positioning pressure sensor (22), the positioning block (23) is located above the material plate (19) and can extrude the material plate (19) to move towards the material conveying roller (4).

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