A strip welding equipment, its operation method and a continuous processing assembly line

Abstract

The present invention provides a strip welding device, a working method and a continuous processing assembly line, including a frame with a positioning table. A welding station is arranged on the positioning table. One side of the welding station is a tail material station, and the other side is a new material station. Cutting openings are arranged on both sides of the welding station. A material pressing module is arranged above the positioning table. The material pressing module is provided with a welding through slot corresponding to the welding station, and a welder is erected above the welding through slot; a cutting module is arranged below the welding station. A cutting knife corresponding to the cutting opening is arranged in the cutting module, and the cutting knife is lifted by a driving component to cut the material. A material positioning and shifting module is arranged below the tail material station / new material station, and the material positioning and shifting module drives positioning pin assemblies with different pitches to extend out of the positioning table. The present invention realizes the automatic connection of the tail end of the strip in the mold and the head end of the new strip, achieves the purpose of no need to stop the machine for material change, thereby reducing processes, improving work efficiency and output. By adjusting the positioning level, positioning structures of different specifications are formed to adapt to the welding of materials of multiple specifications.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical technology, and relates to a welding device, in particular to a strip splicing equipment, its operation method and a continuous processing line. Background Art

[0002] In the production process of electronic products, materials such as strips are often used. In the actual production process, strips usually need to be spliced into a whole section according to the size of electronic products. And this process usually needs to use a machine to weld multiple strips into a whole section. The existing equipment needs to stop the machine to take out the tail material from the mold and then load the new material into the mold when changing the material, so a continuous operation mode cannot be realized, resulting in waste of time and reduced work efficiency.

[0003] For example, a Chinese patent document has disclosed a high-precision strip laser welding device [Chinese Patent No.: CN201921459159.4]. The present utility model discloses a high-precision strip laser welding device, which is characterized in that it includes a frame and a strip positioning mechanism, a cutting mechanism, a splicing mechanism, a pressure strip mechanism, and a welding mechanism arranged thereon. The strip positioning mechanism includes a strip positioning seat provided with a first pin hole, and the cutting mechanism is arranged above the strip positioning seat; the splicing mechanism includes a strip splicing seat provided with a second pin hole, and the pressure strip mechanism is provided with a pressure strip that tightly presses on the strip; the welding mechanism includes a servo module and a laser welding component arranged on the servo module, and the laser welding component is arranged above the strip splicing seat to perform laser welding on the strip. The structure of the present utility model is simple, greatly improving the welding qualification rate and production efficiency of products.

[0004] In the above technical solution, the cutting station and the welding station are arranged in parallel, that is, there is a long distance between the two. Therefore, after cutting, it is necessary to transfer a long distance before splicing and welding, resulting in poor alignment during splicing and prone to problems such as dislocation or unevenness. In addition, the above technical solution adopts a positioning structure with a fixed specification, so it can only process strips of one width, limiting the use range of the equipment, and at the same time increasing the limitations and processing costs. Summary of the Invention

[0005] The object of the present invention is to address the above problems existing in the prior art, and propose a strip splicing equipment, its operation method and a continuous processing line that adopt a compact structure of cutting from below and welding from above to improve the accuracy of strip splicing, and at the same time expand the use range by switching different positioning specifications corresponding to different strip widths.

[0006] The objective of the present invention can be achieved through the following technical solutions: a material strip welding device, comprising a frame with a positioning table, a welding station is arranged on the positioning table, one side of the welding station is a tail material station, and the other side is a new material station, cutting openings are arranged on both sides of the welding station, a pressing module is arranged above the positioning table, the pressing module opens a welding seam corresponding to the welding station, and a welder is set up above the welding seam; a cutting module is arranged below the welding station, a cutting knife corresponding to the cutting opening is arranged in the cutting module, the cutting knife is lifted by a driving assembly to cut the material, a material setting and shifting module is arranged below the tail material station / the new material station, and the material setting and shifting module drives positioning pin assemblies with different spacings to extend out of the positioning table.

[0007] In the above-mentioned strip welding equipment, the cutting module includes a plurality of stacked plates, and two pairs of vertical flat grooves pass through the plurality of plates. The top notches of the vertical flat grooves are aligned and connected with the cutting openings one by one. The cutting knife is inserted into the vertical flat grooves to slide up and down, and the top edge of the cutting knife is the blade.

[0008] In the above-mentioned strip welding equipment, the driving assembly includes a push-pull device, the telescopic rod of the push-pull device is fixedly connected to a push-pull frame, the push-pull frame is fixedly connected to two pairs of parallel lifting rods, and a lifting slope is arranged on the top surface of the lifting rod. The lifting rods are supported one by one on the bottom edge of the cutting knife and form a sliding connection, and the vertical height of the lifting slope is the lifting height of the cutting knife.

[0009] In the above-mentioned material strip welding equipment, the material fixing and shifting module includes a shaft rod fixedly mounted on the bottom surface of the positioning platform, the shaft rod is provided with a sliding sleeve, the outer periphery of the sleeve is provided with an upper and lower fixed sleeve of a primary plate and a secondary plate, a plurality of primary positioning pins are erected on the primary plate, and a plurality of secondary positioning pins are erected on the secondary plate, the secondary positioning pins penetrate upward through the primary plate to form relatively free lifting and lowering activities, the positioning platform is provided with a primary positioning hole / a secondary positioning hole corresponding to the primary positioning pin / the secondary positioning pin, and a manual shifting assembly is arranged between the shaft rod and the sleeve.

[0010] In the above-mentioned strip welding equipment, the manual shift assembly includes a shift lever, the bottom end of the shaft rod is hinged to the shift lever through an assembly seat 1, the outer wall of the sleeve is hinged to a movable rod through an assembly seat 2, and the movable rod is hinged to the shift lever.

[0011] In the above-mentioned strip welding equipment, a number of primary springs are pressed between the primary plate and the positioning platform, and a number of secondary springs are pressed between the secondary plate and the positioning platform. The secondary springs penetrate the primary plate to form relatively free telescopic movement.

[0012] In the above-mentioned strip welding equipment, a manual pressing component is provided at the tail stock station / the new stock station. The manual pressing component includes a pressing plate. One side edge of the pressing plate is rotatably connected to the side edge of the positioning table through a hinge seat. A handle is provided on the other side edge of the pressing plate. A positioning pin is connected to the handle. A positioning groove is correspondingly recessed on the positioning table. The handle presses the pressing plate to make the positioning pin extend into the positioning groove to form a fixed press.

[0013] In the above-mentioned strip welding equipment, the material pressing module includes a lifting frame. A material pressing plate is driven by lifting on the lifting frame. The material pressing plate is suspended directly above the welding station. A welding through slot is opened on the material pressing plate.

[0014] In the above-mentioned strip welding equipment, a translation component is provided on the positioning table. The translation component drives a lifting column. The welding device is driven by lifting on the lifting column. The welding nozzle of the welding device is vertically arranged downward.

[0015] In the above-mentioned strip welding equipment, the translation component includes a bracket and a translator. The telescopic shaft of the translator is fixedly connected to the bottom of the lifting column. A guide rail is provided on the bracket. The bottom of the lifting column is slidably connected to the guide rail through a slider.

[0016] The operation method of the strip welding equipment includes the following steps:

[0017] 1), According to the width of the strip to be processed, adjust the fixed material shifting module to switch to the corresponding positioning specification;

[0018] 2), Manually place the tail stock on the tail stock station for positioning, and use the pressing plate to press and fix the tail stock; Manually place the new stock on the new stock station for positioning, and use the pressing plate to press and fix the new stock;

[0019] 3), The pusher pushes out the lifting rod, so that the cutting knife contacts the lifting slope and is gradually pushed up until the blade cuts the strip through the cutting through opening;

[0020] 4), Remove the cut waste, release the tail stock and the new stock so that the two are butted at the welding station, re-adjust the fixed material shifting module to position the strip, and use the pressing plate to press the strip;

[0021] 5), The material pressing plate descends to press the joint of the tail stock and the new stock, and makes the welding through slot coincide with the welding line;

[0022] 6), The translation component drives the lifting column to move forward so that the welding device is directly above the welding through slot. The welding device descends so that the welding nozzle moves along the welding through slot for translational welding to form a straight weld.

[0023] A continuous processing pipeline includes a chassis and also includes the above-mentioned tape splicing equipment, and the tape splicing equipment is installed on the top surface of the chassis.

[0024] Compared with the prior art, the present tape splicing equipment and continuous processing pipeline have the following beneficial effects:

[0025] 1. It realizes the automatic connection of the end of the in-mold tape and the head of the new tape, achieving the purpose of no need to stop the machine for material change, thereby saving processes, improving work efficiency and output.

[0026] 2. By adjusting the positioning level, different specifications of positioning structures are formed, so as to adapt to the automatic welding of multi-specification materials, with flexible application, wide application range, and cost reduction of equipment; in addition, the switching is simple and easy, shortening the switching time, and realizing convenience.

[0027] 3. After the front-end and end tapes are butted, the center distance accuracy of the positioning holes is high, and at the same time, it is ensured that the surface is flat after the welding at the tape connection is completed. Description of the Drawings

[0028] Figure 1 It is the front three-dimensional structure diagram of the present tape splicing equipment.

[0029] Figure 2 It is the back three-dimensional structure diagram of the present tape splicing equipment.

[0030] Figure 3 It is the overall structure diagram of the frame of the present tape splicing equipment.

[0031] Figure 4 It is the internal structure diagram of the cutting module of the present tape splicing equipment.

[0032] Figure 5 It is the structure diagram of the material positioning and shifting module of the present tape splicing equipment.

[0033] Figure 6 It is the three-dimensional structure diagram of the present continuous processing pipeline.

[0034] In the figure, 1. Frame; 1a. Positioning table; 2. Cutting module; 2a. Cutter; 3. Pusher; 4. Pushing frame; 5. Lifting rod; 6. Shaft rod; 7. Bush; 8. First-level plate; 9. First-level positioning pin; 10. First-level spring; 11. Second-level plate; 12. Second-level positioning pin; 13. Second-level spring; 14. First assembly seat; 15. Second assembly seat; 16. Movable rod; 17. Shifting rod; 18. Pressing plate; 19. Handle; 20. Lifting frame; 21. Pressure plate; 22. Translation component; 23. Lifting column; 24. Welder; 25. Chassis. Detailed Embodiments

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figures 1 to 5 As shown, the material strip welding equipment includes a frame 1 with a positioning table 1a, a welding station is arranged on the positioning table 1a, one side of the welding station is a tailing station, and the other side is a new material station, cutting openings are arranged on both sides of the welding station, a pressing module is arranged above the positioning table 1a, a welding seam is opened in the pressing module corresponding to the welding station, and a welder 24 is set up above the welding seam; a cutting module 2 is arranged below the welding station, a cutting knife 2a corresponding to the cutting opening is arranged in the cutting module 2, and the cutting knife 2a is lifted and cut by a driving assembly, and a material fixing and shifting module is arranged below the tailing and new material stations, and the material fixing and shifting module drives positioning needle assemblies with different spacings to extend out of the positioning table 1a.

[0037] Two parallel welds are arranged in the welding station, and through the pressing effect, the product is prevented from being raised or uneven during welding to cause welding defects. The welding seam is two parallel seams, and a conical guide groove is arranged on the periphery of the welding seam, which is conducive to the gathering of solder into the welding seam and the avoidance of solder splashing to form circumferential shielding. The welder 24 is specifically a laser. The cutting opening is formed into a group of two parallel openings, and the cutting knife 2a is formed into a group of two parallel blades.

[0038] The cutting module 2 includes a plurality of stacked plates, wherein two pairs of vertical flat grooves run through the plurality of plates, and the top notches of the vertical flat grooves are aligned and connected with the cutting openings one by one, and a cutting knife 2a is inserted into the vertical flat groove to slide up and down, and the top edge of the cutting knife 2a is a blade.

[0039] The driving assembly includes a push-pull device 3, which is a telescopic cylinder. The push-pull device 3 is fixedly connected to a push-pull frame 4 on the telescopic rod of the push-pull device 3, and the push-pull frame 4 is fixedly connected to two pairs of parallel lifting rods 5. A lifting slope is set on the top surface of the lifting rod 5. The lifting rods 5 are supported on the bottom edge of the cutter 2a in a one-to-one manner and form a sliding connection. The vertical height of the lifting slope is the lifting height of the cutter 2a. When the push-pull device 3 extends the telescopic rod and pushes out the push-pull frame 4 synchronously, the lifting rod 5 and the cutter 2a slide relative to each other, so that the cutter 2a contacts the lifting slope and is gradually pushed up until the blade passes through the cutting port to pressure cut the material strip.

[0040] The material positioning and shifting module includes a shaft rod 6 fixedly arranged on the bottom surface of the positioning table 1a. A shaft sleeve 7 is slidably sleeved on the shaft rod 6. On the outer periphery of the shaft sleeve 7, a first-level plate 8 and a second-level plate 11 are fixedly sleeved up and down. Several first-level positioning pins 9 are erected on the first-level plate 8, and several second-level positioning pins 12 are erected on the second-level plate 11. The second-level positioning pins 12 penetrate upward through the first-level plate 8 to form a relatively free lifting movement. The positioning table 1a is provided with first-level positioning holes / second-level positioning holes corresponding to the first-level positioning pins 9 / second-level positioning pins 12. A manual shifting component is arranged between the shaft rod 6 and the shaft sleeve 7.

[0041] Several first-level positioning pins 9 form a positioning pin assembly with one kind of spacing; several second-level positioning pins 12 form a positioning pin assembly with another kind of spacing. The positioning pins can also play an anti-fooling role. A structure of inserting and connecting a guide post and a guide sleeve is also arranged between the positioning table 1a, the first-level plate 8 and the second-level plate 11, which acts on the guiding and sliding of the first-level plate 8 and the second-level plate 11 during the lifting process, so as to ensure the accurate alignment of the positioning pins and the positioning holes.

[0042] The manual shifting component includes a shifting lever 17. The bottom end of the shaft rod 6 is hinged to the shifting lever 17 through a first assembly seat 14. The outer wall of the shaft sleeve 7 is hinged to a movable rod 16 through a second assembly seat 15, and the movable rod 16 is hinged to the shifting lever 17.

[0043] Lift the shifting lever 17 upward around the turning point, so as to drive the shaft sleeve 7 to drive the first-level plate 8 and the second-level plate 11 to move upward, and realize the first-level positioning pins 9 / second-level positioning pins 12 to extend out of the positioning table 1a to fix the material tape with a corresponding width.

[0044] Several first-level springs 10 are pressed between the first-level plate 8 and the positioning table 1a, and several second-level springs 13 are pressed between the second-level plate 11 and the positioning table 1a. The second-level springs 13 penetrate through the first-level plate 8 to form a relatively free telescopic movement. The springs play an elastic supporting role.

[0045] A manual pressing component is arranged at the tail material station / new material station. The manual pressing component includes a pressing plate 18. One side edge of the pressing plate 18 is rotatably connected to the side edge of the positioning table 1a through a hinge seat. A handle 19 is arranged on the other side edge of the pressing plate 18. A positioning pin is connected to the handle 19. A positioning groove is correspondingly recessed on the positioning table 1a. Press the pressing plate 18 with the handle 19 to make the positioning pin extend into the positioning groove to form a fixed pressing. Manually operate the pressing plate 18 to press the tail material or the new material, so that the tail material or the new material is cut or welded in the pressed state to ensure the accuracy of the processing operation position and improve the processing accuracy.

[0046] The blank holding module includes a lifting frame 20. A blank holding plate 21 is driven by the lifting on the lifting frame 20. The blank holding plate 21 is suspended directly above the welding and splicing station. Welding through slots are formed on the blank holding plate 21. The number of the welding through slots is two, and the two welding through slots are arranged in one-to-one correspondence with the two weld seams. A manual lifting device or an electric / pneumatic lifting device can be arranged on the lifting frame 20. The manual lifting device is, for example, a handwheel lifting structure, which belongs to the prior art. The electric / pneumatic lifting device is, for example, an electric cylinder, a cylinder, etc.

[0047] A translation assembly 22 is arranged on the positioning table 1a. A lifting column 23 is driven on the translation assembly 22. A welder 24 is driven by the lifting on the lifting column 23. The welding nozzle of the welder 24 is arranged vertically downward. A manual lifting device or an electric / pneumatic lifting device can be arranged on the lifting column 23. The manual lifting device is, for example, a handwheel lifting structure, which belongs to the prior art. The electric / pneumatic lifting device is, for example, an electric cylinder, a cylinder, etc.

[0048] The translation assembly 22 includes a bracket and a translator. The translator is specifically a telescopic cylinder. The telescopic shaft of the translator is fixedly connected to the bottom of the lifting column 23. A guide rail is arranged on the bracket. The bottom of the lifting column 23 is slidably connected to the guide rail through a slider.

[0049] The operation steps of this strip welding and splicing equipment are as follows:

[0050] 1. According to the width of the strip to be processed, adjust the fixed material shifting module to switch to the corresponding positioning specification;

[0051] 2. Manually place the tail material at the tail material station for positioning, and press and fix the tail material with the pressing plate 18; Manually place the new material at the new material station for positioning, and press and fix the new material with the pressing plate 18;

[0052] 3. The pusher 3 pushes out the lifting rod 5, so that the cutting knife 2a contacts the lifting slope and is gradually pushed up until the blade cuts the strip through the cutting through opening;

[0053] 4. Remove the cut waste, release the tail material and the new material so that the two are butted at the welding and splicing station, re-adjust the fixed material shifting module to position the strip, and use the pressing plate 18 to press the strip;

[0054] 5. The blank holding plate 21 descends to press the splicing part of the tail material and the new material, and makes the welding through slot coincide with the splicing line;

[0055] 6. The translation assembly 22 drives the lifting column 23 to move forward so that the welder 24 is located directly above the welding through slot. The welder 24 descends so that the welding nozzle moves horizontally along the welding through slot to perform a linear weld.

[0056] Compared with the prior art, this strip welding and splicing equipment has the following beneficial effects:

[0057] 1. Automatically connect the end of the in-mold tape and the head end of the new tape to achieve the purpose of no need to stop the machine for material change, thereby saving processes, improving work efficiency and output.

[0058] 2. Form positioning structures of different specifications by adjusting the positioning level, so as to adapt to the automatic welding of multi-specification materials, with flexible application, wide application range, and cost savings for equipment; in addition, the switching is simple and easy, shortening the switching time, and achieving convenience.

[0059] 3. After the front-end and tail-end tapes are butted, the center distance accuracy of the positioning holes is high, and at the same time, the surface of the tape connection is ensured to be flat after welding.

[0060] Embodiment 2

[0061] Based on Embodiment 1, the difference in this embodiment is:

[0062] As Figure 6 shown, a continuous processing production line includes a chassis 25, and also includes the above-mentioned tape splicing and welding equipment, and the tape splicing and welding equipment is installed on the top surface of the chassis 25.

[0063] Compared with the prior art, this continuous processing production line has the following beneficial effects:

[0064] 1. Automatically connect the end of the in-mold tape and the head end of the new tape to achieve the purpose of no need to stop the machine for material change, thereby saving processes, improving work efficiency and output.

[0065] 2. Form positioning structures of different specifications by adjusting the positioning level, so as to adapt to the automatic welding of multi-specification materials, with flexible application, wide application range, and cost savings for equipment; in addition, the switching is simple and easy, shortening the switching time, and achieving convenience.

[0066] 3. After the front-end and tail-end tapes are butted, the center distance accuracy of the positioning holes is high, and at the same time, the surface of the tape connection is ensured to be flat after welding.

[0067] The specific embodiments described herein are only illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0068] Although terms such as frame 1; positioning table 1a; cutting module 2; cutting knife 2a; pusher 3; pushing frame 4; lifting rod 5; shaft rod 6; shaft sleeve 7; first-level plate 8; first-level positioning pin 9; first-level spring 10; second-level plate 11; second-level positioning pin 12; second-level spring 13; first assembly seat 14; second assembly seat 15; movable rod 16; shift lever 17; pressing plate 18; handle 19; lifting frame 20; material pressing plate 21; translation assembly 22; lifting column 23; welder 24; chassis 25 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

[0069] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A material strip welding device, comprising a frame with a positioning platform, wherein a welding station is arranged on the positioning platform, one side of the welding station is a tail material station, and the other side is a new material station, and cutting openings are arranged on both sides of the welding station, It is characterized in that A pressing module is arranged above the positioning platform, and a welding seam is opened in the pressing module corresponding to the welding station, and a welder is set up above the welding seam; a cutting module is arranged below the welding station, and a cutting knife corresponding to the cutting opening is arranged in the cutting module, and the cutting knife is lifted by a driving component to cut the material, and a material setting and shifting module is arranged below the tail material station and the new material station, and the material setting and shifting module drives the positioning pin components with different spacings to extend out of the positioning platform; The driving assembly includes a push-pull device, a push-pull frame is fixedly connected to the telescopic rod of the push-pull device, and the push-pull frame is fixedly connected to two pairs of parallel lifting rods, and a lifting slope is arranged on the top surface of the lifting rod, and the lifting rods are supported on the bottom edge of the cutter in a one-to-one correspondence, and the lifting rods and the cutter form a sliding connection, and the vertical height of the lifting slope is the lifting height of the cutter; The fixed material shifting module comprises a shaft rod fixedly arranged on the bottom surface of the positioning platform, a sliding sleeve is formed on the shaft rod, and the outer periphery of the sleeve is formed by upper and lower fixed sleeves of a primary plate and a secondary plate, a plurality of primary positioning pins are erected on the primary plate, and a plurality of secondary positioning pins are erected on the secondary plate, the secondary positioning pins penetrate the primary plate upward and the secondary positioning pins can be freely lifted and lowered relative to the primary plate, the positioning platform is provided with a primary positioning hole corresponding to the primary positioning pin, and the positioning platform is provided with a secondary positioning hole corresponding to the secondary positioning pin, and a manual shifting assembly is arranged between the shaft rod and the sleeve; The manual shift assembly comprises a shift lever, the bottom end of the shaft rod is hinged to the shift lever through a first assembly seat, the outer wall of the sleeve is hinged to a movable rod through a second assembly seat, and the movable rod is hinged to the shift lever; A plurality of primary springs are pressed between the primary plate and the positioning platform, and a plurality of secondary springs are pressed between the secondary plate and the positioning platform. The secondary springs penetrate the primary plate and can freely expand and contract relative to the primary plate.

2. The strip welding equipment according to claim 1, It is characterized in that The cutting module comprises a plurality of overlapping plates, wherein two pairs of vertical flat grooves run through the plurality of plates, the top notches of the vertical flat grooves are aligned and connected with the cutting openings one by one, the cutting knife is inserted into the vertical flat grooves in an up-and-down sliding manner, and the top edge of the cutting knife is a blade.

3. The strip welding equipment according to claim 1, It is characterized in that A manual pressing assembly is provided on the tail material station and the new material station, and the manual pressing assembly includes a pressing plate, one side of the pressing plate is rotatably connected to the side of the positioning platform via a hinge seat, a handle is provided on the other side of the pressing plate, a positioning pin is connected to the handle, and a corresponding concave positioning groove is provided on the positioning platform, and the handle presses the pressing plate so that the positioning pin extends into the positioning groove to form a fixed pressing.

4. The strip welding equipment according to claim 1, It is characterized in that The blank holding module includes a lifting frame which drives a blank holding plate to lift. The blank holding plate is suspended directly above the butt welding station, and a welding through slot is formed in the blank holding plate.

5. The strip butt welding device according to claim 1, characterized in that, a translation assembly is arranged on the positioning table. The translation assembly drives a lifting column, and the lifting column drives the welder to lift. The welding nozzle of the welder is arranged vertically downward.

6. The strip butt welding device according to claim 5, characterized in that, the translation assembly includes a bracket and a translator. The telescopic shaft of the translator is fixedly connected to the bottom of the lifting column. A guide rail is arranged on the bracket, and the bottom of the lifting column is in sliding connection with the guide rail through a slider.

7. A continuous processing production line includes a chassis, characterized in that, it further includes the strip butt welding device according to any one of claims 1 to 6. The strip butt welding device is installed on the top surface of the chassis.

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