Full-automatic processing equipment for metal strip

Abstract

The application discloses a kind of metal strip full-automatic processing equipment, including workbench;Welding device is connected in the workbench, including welding frame, upper welding platform, and the lower welding platform matched with the upper welding platform, the upper welding platform and the lower welding platform are connected in the welding frame, welding head is equipped above the upper welding platform, and the welding head is fixedly connected with the welding frame;By setting cutting conveying device, cutting is carried out to metal strip A by cutting knife, and the metal strip after cutting is conveyed to welding device by moving plate, simultaneously, one side of welding device is equipped with feeding device, and feeding device conveys strip B to welding device, and the rising of lower welding platform in welding device carries strip A on moving plate, so that it is separated from moving plate, and the pressing of upper welding platform clamps metal strip A and strip B relative to lower welding platform, realizes the fixation of position between strip, welding head works, realizes the welding between metal strip A and strip B.

Description

Technical Field

[0001] This invention belongs to the field of strip processing technology, specifically relating to a fully automatic metal strip processing equipment. Background Technology

[0002] Metal strips have a rectangular cross-section, uniform thickness, and are flat rolled non-ferrous metal products. They are usually longitudinally trimmed and supplied in coils. Laser welding is a common way to join different strips. Welding metal strips can connect different types of metal materials together to form a whole. It can achieve a tight connection between metal materials, while ensuring the strength and stability of the connection, meeting the needs of industrial production.

[0003] Existing processing equipment can only perform fixed welding on metal strips. However, when welding two metal strips, one of them needs to be cut at equal intervals and the cut strip needs to be conveyed. Existing equipment cannot achieve simultaneous cutting and conveying of the strip, and it is also difficult to feed two metal strips at the same time, resulting in low processing efficiency. In addition, the welded metal strip lacks the protection of a protective gas and is easily oxidized. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the existing technology, the purpose of this invention is to provide a fully automatic metal strip processing equipment.

[0005] The technical solution adopted in this invention is as follows: It includes a workbench; a welding device connected to the workbench, comprising a welding frame, an upper welding station, and a lower welding station cooperating with the upper welding station, both the upper and lower welding stations being connected to the welding frame; a welding head positioned above the upper welding station; the welding head being fixedly connected to the welding frame; a cutting and conveying device connected to one side of the welding device, comprising a support platform, a cutting blade, and a moving plate; the cutting blade being slidably connected to the support platform; the moving plate being located on one side of the cutting blade and slidably connected to the support platform; the cutting and conveying device being used to cut strip A and convey the cut strip A to the welding device; a feeding device fixedly connected to the workbench and located on one side of the welding device; the feeding device being used to convey strip B to the welding device; and a protective device located on the side of the welding device away from the feeding device, the protective device being able to blow protective gas onto the welding point of the metal strip.

[0006] As a preferred embodiment of the present invention, the upper welding station includes a support frame, the support frame being U-shaped, the support frame being slidably connected to the welding frame via a sliding member, the support frame having a through hole, and an alignment pin adapted to the through hole being provided in the through hole, one end of the alignment pin having a pressing block and the other end having a limiting ring, both the pressing block and the limiting ring being fixedly connected to the alignment pin, and a spring being provided between the pressing block and the support frame, the two ends of the spring being fixedly connected to the support frame and the pressing block respectively.

[0007] As a preferred embodiment of the present invention, two pressure blocks are provided, the two pressure blocks are connected to both sides of the support frame, a fixing block is provided between the two pressure blocks, the fixing block is fixedly connected to the pressure blocks, the fixing block is provided with a through groove, a welding area is formed in the through groove, and the welding area corresponds to the welding head.

[0008] As a preferred embodiment of the present invention, the lower welding station includes a support plate, a slide rail is fixedly provided on the support plate, a lower top plate is slidably provided on the slide rail, a cylinder is provided on one side of the lower top plate to drive the lower top plate to slide, the cylinder end of the cylinder is fixedly connected to the support plate, and its output end is fixedly connected to the lower top plate.

[0009] As a preferred embodiment of the present invention, the lower top plate is provided with an alignment groove, the alignment groove penetrates the lower top plate, and there are two alignment grooves, each of which corresponds to one of the two through grooves.

[0010] As a preferred embodiment of the present invention, a mounting plate is fixedly provided on the support platform, the cutting blade is slidably connected to the mounting plate, the mounting plate is provided with a cutting groove, the cutting blade is in contact with one side of the cutting groove, a limiting block is provided on one side of the cutting blade, and the limiting block is fixedly connected to one side of the cutting blade.

[0011] As a preferred embodiment of the present invention, a slide rail is provided on the support platform, and an installation block is slidably provided in the slide rail. The movable plate is fixedly connected to the side of the installation block away from the slide rail. A support bar is provided at the end of the movable plate near the welding device. The support bar is fixedly connected to the support platform and located on the side of the movable plate away from the slide rail. The support bar supports the cut strip A.

[0012] As a preferred embodiment of the present invention, the width of the movable plate is less than the distance between the two alignment slots.

[0013] As a preferred embodiment of the present invention, the workbench is provided with a slide block, the slide block is fixedly connected to the workbench, the feeding device includes a moving platform, the moving platform is slidably connected to the slide block, the moving platform is provided with an electric cylinder, the cylinder end of the electric cylinder is fixedly connected to the moving platform, the output end of the electric cylinder is provided with a clamping block, the clamping block is fixedly connected to the output end of the electric cylinder and is located between the electric cylinder and the moving platform.

[0014] As a preferred embodiment of the present invention, the protective device includes a protective cover, which is fixedly connected to the workbench and forms a protective cavity inside the protective cover. A protective gas port is provided on one side of the protective cover, and the protective gas port communicates with the protective cavity.

[0015] The beneficial effects of this invention are as follows: This invention, as a fully automatic metal strip processing equipment, incorporates a cutting and conveying device. A cutting blade cuts metal strip A, and a moving plate transports the cut strip to a welding device. Simultaneously, a feeding device on one side of the welding device transports strip B to the welding device. The rising of the lower welding station in the welding device supports strip A on the moving plate, causing it to detach from the moving plate. The downward pressure of the upper welding station clamps metal strip A and strip B relative to the lower welding station, fixing their positions. The welding head then operates, welding strip A and strip B together. After welding, the metal strip passes through a protective device, where protective gas is introduced to prevent oxidation of the weld joint.

[0016] A through hole is provided on the support frame, and an alignment pin is installed in the through hole. The two ends of the alignment pin are connected to a limiting ring and a lower pressure block, respectively. A spring is provided between the support frame and the lower pressure block. The downward movement of the support frame is controlled by the driving component, so that the spring is compressed and stored elastic potential energy, and drives the lower pressure plate to move the fixed block downward. The downward movement of the fixed block will clamp the strip B located on one side of the fixed block with the upper top plate. The upper welding station can ensure the clamping force while improving adaptability, and can be used for clamping and welding of thicker strips. The shaft pin can prevent the position of the lower pressure block from changing when it moves up and down.

[0017] By making the width of the moving plate smaller than the installation distance between the two alignment slots, the lower top plate moves upward to avoid the moving plate, and the strip A on the moving plate is lifted, so that the movement of the moving plate and the welding device does not interfere. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention; Figure 3 This is a schematic diagram of the welding device of the present invention; Figure 4 This is a schematic diagram of the structure of the welding station of the present invention; Figure 5 This is a schematic diagram of the cutting and conveying device of the present invention; Figure 6 This is a schematic diagram of the feeding device of the present invention.

[0020] In the diagram: 1. Workbench; 2. Welding device; 3. Cutting and conveying device; 4. Feeding device; 5. Protective device; 6. Strip A; 7. Strip B; 11. Slide; 21. Welding frame; 22. Upper welding station; 23. Lower welding station; 24. Welding head; 221. Support frame; 222. Through hole; 223. Alignment pin; 224. Lower pressure block; 225. Limiting ring; 226. Spring; 227. Fixing block; 228. Through groove; 229. Welding area; 231. Support plate; 232. Slide rail; 233. Lower top plate; 234. Cylinder; 235. Alignment groove; 31. Support platform; 32. Mounting plate; 33. Cutting knife; 34. Moving plate; 35. Limiting block; 321. Slide groove; 322. Mounting block; 323. Support bar; 41. Moving platform; 42. Electric cylinder; 43. Clamping block; 51. Protective cover; 53. Protective air interface; 54. Protective cavity. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] The following is combined with Figure 1-6This invention describes a fully automated metal strip processing device, comprising a worktable 1 as a supporting component, and a welding device 2 connected to the worktable 1. The welding device 2 includes a welding frame 21, an upper welding station 22, and a lower welding station 23 cooperating with the upper welding station 22. Both the upper welding station 22 and the lower welding station 23 are connected to the welding frame 21. The upper welding station 22 applies a clamping force to the strip on the side facing downwards to the lower welding station 23, fixing the strip to the lower welding station 23 and providing load support. Simultaneously, the lower welding station 23 lifts the upper welding station 22, raising the strip. Welding clamping force: A welding head 24 is provided above the upper welding station 22. The welding head 24 is fixedly connected to the welding frame 21. Through the clamping between the upper welding station 22 and the lower welding station 23, the welding head 24 welds the two metal strips between the upper and lower welding stations 23. A cutting and conveying device 3 is connected to one side of the welding device 2. It is used to cut the strip A6 at equal intervals and convey the cut strip A6 to one side of the welding device 2, realizing the conveying and feeding of the strip A6 after equal interval cutting. The cutting and conveying device 3 includes a support platform 31, a cutting... The cutting blade 33 and the moving plate 34 are used. The cutting blade 33 is slidably connected to the support platform 31. The strip A6 passes through the support platform 31, and the cutting blade 33 slides up and down on the support platform 31 to cut the strip A6. The moving plate 34 is located on one side of the cutting blade 33 and is slidably connected to the support platform 31. The sliding length direction of the support platform 31 is perpendicular to the sliding length direction of the cutting blade 33. The moving plate 34 transports the strip A6 carried on it to the welding device 2. The cutting and conveying device 3 is used for cutting the strip A6 and for processing the cut strip. The strip A6 is then conveyed to the welding device 2; the feeding device 4 is fixedly connected to the workbench 1 and located on one side of the welding device 2, and the feeding device 4 is used to convey the strip B7 to the welding device 2; the protective device 5 is located on the side of the welding device 2 away from the feeding device 4, and the protective device 5 can blow protective gas to the welding point of the metal strip. After the strip A6 and strip B7 are welded, they shuttle into the protective device 5. The protection is achieved by filling the protective device 5 with protective gas to protect the welding point from oxidation.

[0024] Advantageously, the upper welding station 22 includes a support frame 221, which is U-shaped. The support frame 221 is slidably connected to the welding frame 21 via a sliding member. The sliding of the support frame 221 is pneumatically controlled, and the upper welding station 22 is reciprocated up and down by a set program. The support frame 221 is provided with a through hole 222, and a matching pin 223 is provided in the through hole 222. One end of the matching pin 223 is provided with a pressing block 224, and the other end is provided with a limiting ring 225. Both the pressing block 224 and the limiting ring 225 are aligned with the matching pin 223. The positioning pin 223 is fixedly connected at both ends. It is slidably connected in the through hole 222 through the positioning pin 223, so that the lower pressure block 224 can be limited to move up and down relative to the support frame 221, preventing it from moving left and right and changing the position of the strip on the welding table. A spring 226 is provided between the lower pressure block 224 and the support frame 221. The two ends of the spring 226 are fixedly connected to the support frame 221 and the lower pressure block 224 respectively. The spring 226 can improve the clamping force on the strip. At the same time, no equipment adjustment is required when changing the strip thickness at zero time, which improves the applicability of the equipment.

[0025] Advantageously, two pressure blocks 224 are provided, which are connected to both sides of the support frame 221, corresponding to the two ends of the support frame 221. A fixing block 227 is provided between the two pressure blocks 224, and the fixing block 227 is fixedly connected to the pressure blocks 224. The fixing block 227 and the pressure blocks 224 are fixedly connected by bolts. During debugging, the position of the fixing block 227 on the pressure blocks 224 can be adjusted. It is not shown in the figure, but it is a conventional waist-shaped groove bolt adjustment method. The fixing block 227 is provided with a through groove 228, and a welding area 229 is formed in the through groove 228. The welding area 229 corresponds to the welding head 24. The welding head 24 is a laser welding gun head, and the laser welding of the welding head 24 is directed into the welding area 229 to weld the strip in the welding area 229.

[0026] Advantageously, the lower welding station 23 includes a support plate 231, a slide rail 232 is fixedly provided on the support plate 231, and a lower top plate 233 is slidably provided on the slide rail 232. The lower top plate 233 slides on the slide rail 232 on the support plate 231 by pneumatic control. A cylinder 234 is provided on one side of the lower top plate 233 to drive the lower top plate 233 to slide. By controlling the cylinder 234, the upper welding station 22 and the lower welding station 23 can move up and down to cooperate and clamp the strip. The cylinder end of the cylinder 234 is fixedly connected to the support plate 231, and its output end is fixedly connected to the lower top plate 233.

[0027] Advantageously, the lower top plate 233 is provided with an alignment groove 235, which penetrates the lower top plate 233. There are two alignment grooves 235, which correspond one-to-one with the two through grooves 228. During welding, the laser welding will weld through the lower top plate 233. By opening the alignment groove 235 in the lower top plate 233, the strip can be supported while ensuring that the lower top plate 233 is not damaged, thus realizing the welding between strips.

[0028] Advantageously, a mounting plate 32 is fixedly provided on the support platform 31, and the cutting blade 33 is slidably connected to the mounting plate 32. The cutting blade 33 slides up and down on the mounting plate 32 under pneumatic control. The mounting plate 32 is provided with a cutting groove, and the cutting blade 33 is in contact with one side of the cutting groove. The downward movement of the cutting blade 33 will cut the strip A6 extending from the cutting groove. A limiting block 35 is provided on one side of the cutting blade 33. The limiting block 35 is fixedly connected to one side of the cutting blade 33. The limiting block 35 can be installed on one side of the cutting blade 33 by means of an elastic element, or the limiting block 35 can be made of a plastic material. When the cutting blade 33 is pneumatically controlled to move down, the limiting block 35 first contacts the strip A6 and firmly fixes the strip A6 on the moving platform 41. Finally, the strip A6 is fixed on the moving plate 34 and cut. The equidistant cutting is controlled by the feeding machine on one side.

[0029] Advantageously, a slide rail 232 is provided on the support platform 31, and an mounting block 322 is slidably provided in the slide rail 232. The moving plate 34 is fixedly connected to the side of the mounting block 322 away from the slide rail 232. A support bar 323 is provided at the end of the moving plate 34 near the welding device 2. The support bar 323 is fixedly connected to the support platform 31 and is located on the side of the moving plate 34 away from the slide rail 232. The support bar 323 supports the cut strip A6. In its initial position, the support bar 323 is located directly below the cutting blade 33, and its upper end face is in contact with the uncut strip A6. When the support bar 323 slides to the leftmost end, it is located between the two alignment grooves 235.

[0030] Advantageously, the width of the movable plate 34 is less than the distance between the two alignment slots 235, and the movement of the movable plate 34 between the two alignment slots 235 is not interfered with. The side of the movable plate 34 facing the cutting blade 33 is open to avoid motion interference with the movable plate 34.

[0031] Advantageously, the feeding device 4 is installed on the side of the welding device 2 away from the protection device 5. The workbench 1 is provided with a slide 11, which is fixedly connected to the workbench 1. The feeding device 4 includes a moving table 41, which is slidably connected to the slide 11. The upper end of the moving table 41 is used to carry the strip B7, and the lower end is slidably connected to the slide 11. The sliding is pneumatically controlled. The moving table 41 is provided with an electric cylinder 42, the cylinder end of which is fixedly connected to the moving table 41. The output end of the electric cylinder 42 is provided with a clamping block 43, which is fixedly connected to the output end of the electric cylinder 42 and located between the electric cylinder 42 and the moving table 41. The electric cylinder 42 controls the clamping block 43 to move up and down, clamping the strip B7 located between the clamping block 43 and the upper end of the moving table 41. By sliding the workbench 1, the strip B7 is conveyed to one side of the welding device 2.

[0032] Advantageously, the protective device 5 includes a protective cover 51, which is fixedly connected to the workbench 1. A protective cavity 54 is formed inside the protective cover 51. A protective gas inlet 53 is provided on one side of the protective cover 51, which is connected to the protective cavity 54. After the metal strip is welded, it is pulled by the unloading equipment and shuttled into the protective cover 51. Protective gas is injected into the protective cavity 54 through the protective gas inlet 53, so that the welding point stays in the protective cover 51 for three to five seconds, thereby achieving anti-oxidation protection for the welding point. At the same time, it can also reduce the welding temperature, make the weld bead uniform and beautiful, and reduce the occurrence of defects such as porosity and cracks.

[0033] Working principle of this invention: The strip A6 is conveyed to the cutting slot by the feeder at a fixed length and extends to the side of the moving plate 34. The length of the extension is the cutting length. The cutting blade 33 is controlled to move downward along the track provided on the mounting plate 32. The limiting block 35 contacts the strip A6 and limits it on the upper surface of the support bar 323. The connection of the limiting block 35 is elastic, or it can be made of plastic material, so that the position of the strip A6 is limited and does not change when it is being cut. After the cutting is completed, the cutting blade 33 moves up and resets to wait for the next cutting. The control moving plate 34 slides along the slide groove 321 towards the side of the welding device 2. When it slides to the farthest end, the support bar 323 is located between the upper welding station 22 and the lower welding station 23, and between the two alignment grooves 235, waiting for the lower top plate 233 to lift and unload the strip A6. The end of the lower top plate 233 near the moving plate 34 is open, and the distance between the two alignment grooves 235 is greater than the width of the moving plate 34. The moving plate 34 does not cause movement interference with the lower top plate 233. While the strip A6 is being cut and conveyed, the control clamp 43 in the feeding mechanism moves down to clamp the segmented strip B7 onto the moving table 41. The moving table 41 carries the strip B7 and slides it toward the side of the welding device 2, conveying its front end to the welding area 229, which is located directly below the strip A6, thus realizing the automatic feeding of the strip B7. The lower top plate 233 in the lower welding station 23 rises, and the two alignment grooves 235 are respectively connected to the two ends of the strip A6. The lower top plate 233 moves up to support the strip A6 on the support bar 323, so that it is separated from the support bar 323. After being separated, the moving plate 34 moves to the right to reset, waiting for the next strip A6 to be cut and carried and conveyed. As the lower top plate 233 rises, the support frame 221 moves downward, driving the lower pressure block 224 and the fixing block 227 to move towards the lower top plate, clamping strip B7 and strip A6 relative to the upper top plate, so that the strips are in close contact. After clamping, the feeding device 4 resets, waiting for the next feeding of strip B7. At this time, the welding head 24 is started to weld in the welding area 229 to achieve welding between strip A6 and strip B7. After welding, the upper welding station 22 and the lower welding station 23 contact the clamping force, reset, and wait for the next clamping of the strip. When the lower pressure block 224 and the fixing block 227 move down to contact the lower top plate 233, the spring 226 continues to move down and is compressed, increasing the clamping force of the lower pressure block 224 and the fixing block 227 on the strip. At the same time, it is suitable for metal strips of different thicknesses. The through hole 222 and the positioning pin 223 limit the downward movement position of the lower pressure block 224 and the fixing block 227. After welding is completed, the welded metal strip is moved by the unloading equipment. The metal strip shuttles into the protective cover 51. Shielding gas is introduced into the protective cavity 54 through the shielding gas interface 53. This protects the weld point, which stays in the protective cavity 54 for a few seconds, from oxidation. At the same time, it can also reduce the temperature of the weld point and improve the strength and uniformity of the weld point.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection 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.

[0035] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A fully automatic metal strip processing equipment, characterized in that, include: Workbench; A welding device, connected to the workbench, includes a welding frame, an upper welding station, and a lower welding station that cooperates with the upper welding station. Both the upper welding station and the lower welding station are connected to the welding frame. A welding head is provided above the upper welding station. The welding head is fixedly connected to the welding frame. The welding head is a laser welding gun head. A cutting and conveying device is connected to one side of the welding device. The cutting and conveying device includes a support platform, a cutting blade, and a moving plate. The moving plate is located on one side of the cutting blade and is slidably connected to the support platform. The cutting and conveying device is used to cut strip A and convey the cut strip A to the welding device. A feeding device is fixedly connected to the workbench and located on one side of the welding device. The feeding device is used to transport strip B to the welding device. A protective device is located on the side of the welding device away from the feeding device, and the protective device is capable of blowing protective gas to the welding point of the metal strip; The upper welding station includes a support frame, which is U-shaped and slidably connected to the welding frame via a sliding member. The support frame has a through hole, and an alignment pin adapted to the through hole is provided in the through hole. One end of the alignment pin has a pressing block, and the other end has a limiting ring. Both the pressing block and the limiting ring are fixedly connected to the alignment pin. A spring is provided between the pressing block and the support frame, and both ends of the spring are fixedly connected to the support frame and the pressing block, respectively. Two pressure blocks are provided, and the two pressure blocks are connected to both sides of the support frame. A fixing block is provided between the two pressure blocks and is fixedly connected to the pressure blocks. The fixing block is provided with a through groove, and a welding area is formed in the through groove. The welding area corresponds to the welding head. The lower welding station includes a support plate, a slide rail is fixedly mounted on the support plate, a lower top plate is slidably mounted on the slide rail, and a cylinder for driving the lower top plate to slide is provided on one side of the lower top plate. The cylinder barrel end of the cylinder is fixedly connected to the support plate, and its output end is fixedly connected to the lower top plate. The lower top plate is provided with an alignment groove, which penetrates the lower top plate. There are two alignment grooves, and the two alignment grooves correspond one-to-one with the two through grooves. A mounting plate is fixedly provided on the support platform. The cutting blade is slidably connected to the mounting plate. The mounting plate is provided with a cutting groove. The cutting blade is in contact with one side of the cutting groove. A limiting block is provided on one side of the cutting blade. The limiting block is installed on one side of the cutting blade by an elastic element. When the cutting blade moves down, the limiting block first contacts the strip A and fixes the strip A on the moving plate. The lower top plate is open on the side facing the movable plate, and the width of the movable plate is less than the distance between the two alignment slots.

2. The fully automatic metal strip processing equipment according to claim 1, characterized in that: The support platform is provided with a slide rail, and an installation block is slidably provided in the slide rail. The movable plate is fixedly connected to the side of the installation block away from the slide rail. The end of the movable plate near the welding device is provided with a support bar. The support bar is fixedly connected to the support platform and located on the side of the movable plate away from the slide rail. The support bar supports the cut strip A.

3. The fully automatic metal strip processing equipment according to claim 1, characterized in that: The workbench is provided with a slide block, which is fixedly connected to the workbench. The feeding device includes a moving platform, which is slidably connected to the slide block. An electric cylinder is provided on the moving platform, with the cylinder end of the electric cylinder fixedly connected to the moving platform. A clamping block is provided at the output end of the electric cylinder, which is fixedly connected to the output end of the electric cylinder and located between the electric cylinder and the moving platform.

4. The fully automatic metal strip processing equipment according to claim 1, characterized in that: The protective device includes a protective cover, which is fixedly connected to the workbench and forms a protective cavity inside the protective cover. A protective gas port is provided on one side of the protective cover and communicates with the protective cavity.

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