Filter protection net welding equipment

Abstract

The invention relates to the technical field of filter production equipment, in particular to filter protection net welding equipment which comprises a frame body, a pile casing forming assembly and a space circulation welding assembly shaped like a Chinese character'hui '. The concentric-square-shaped space circulation welding assembly comprises a concentric-square-shaped space circulation welding mechanism and a laser welding head. Therefore, the forming device and the welding device of the filter protection net are ingeniously integrated on the same frame body, full-automatic continuous operation from plate edge rolling to welding is achieved, the design eliminates multiple times of material transferring and welding after forming, the period is greatly shortened, efficiency is improved, high automation is achieved, manual intervention is reduced, and production efficiency is improved. And especially for welding seam alignment and welding operation, the labor intensity is reduced, personal errors are avoided, the labor cost is saved, and the production safety is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of filter production equipment, and particularly to a filter guard net welding device. Background Art

[0002] In the existing filter, a filter paper dedicated to oil filtration is configured inside. To ensure the service life of the filter paper, a filter guard net is usually provided inside the filter. The guard net is designed as a cylindrical shape with sieve holes.

[0003] However, there are efficiency bottlenecks in the current production process of the guard net: First, a prefabricated plate with sieve holes needs to be processed into a cylindrical shape by a rolling machine. However, openings to be welded will be left at both ends of the cylinder during this process. Subsequently, these semi-finished products need to be moved to the vicinity of a spot welder, and workers manually align the weld positions, and then cooperate with the spot welder to complete the welding, and finally close the openings to form a complete cylindrical structure.

[0004] This traditional production method not only involves multiple material transfers, increasing the logistics cost and time consumption, but also highly depends on manual alignment and welding operations, resulting in low work efficiency and a significant increase in labor intensity, thus restricting the improvement of the overall production efficiency. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0006] To this end, the object of the present invention is to provide a filter guard net welding device. The present invention ingeniously integrates the forming device and the welding device of the filter guard net on the same frame, realizing a fully automatic continuous operation from plate rolling to welding. This design eliminates multiple material transfers, welds immediately after forming, greatly shortens the cycle, improves the efficiency, highly automates and reduces manual intervention, especially weld alignment and welding operations, reduces the labor intensity, avoids human errors, saves labor costs, and enhances production safety.

[0007] To achieve the above object, the present invention provides a welding device for a filter screen guard, which includes a frame body, a guard cylinder forming assembly, and a rectangular space circulating welding assembly. Specifically: The guard cylinder forming assembly includes a lifting slider, an upper mold, and a lower mold. Among them, the lifting slider is vertically slidably connected to the surface of the frame body, the upper mold is fixedly connected to the surface of the lifting slider, the lower mold is fixedly connected to the surface of the frame body and is precisely aligned with the upper mold. The rectangular space circulating welding assembly includes a rectangular space circulating welding mechanism and a laser welding head. Among them, the rectangular space circulating welding mechanism is fixedly connected to the surface of the frame body and is located on one side of the lifting slider, and the laser welding head is fixedly connected to the surface of the rectangular space circulating welding mechanism. The lifting slider and the rectangular space circulating welding mechanism are both driven by an electric drive mechanism arranged inside the frame body. The operation of the lifting slider drives the upper mold to vertically lift and lower. By closely cooperating with the lower mold, the plate-shaped filter screen guard placed on the lower mold is efficiently extruded into a cylindrical guard cylinder. The operation of the rectangular space circulating welding mechanism synchronously drives the laser welding head to flexibly move along a preset rectangular trajectory and weld the weld. The entire device is centrally controlled by a controller. The controller is fixedly connected to the surface of the frame body and is seamlessly connected to the electric drive mechanism and the laser welding head through an efficient bus system to ensure high-speed data transmission and instant response to control instructions.

[0008] In addition, a welding device for a filter screen guard proposed according to the above application may also have the following additional technical features: Specifically, the upper mold includes a vertical slider, a first spring, a pressure roller, and a toothed plate frame. Among them, an opening groove is formed at the bottom of the lifting slider, the vertical slider is vertically slidably connected to the inner wall of the opening groove, and the first spring is fixedly connected between the vertical slider and the inner wall of the opening groove. The pressure roller is fixedly connected to the surface of the vertical slider, and the toothed plate frames are symmetrically integrally formed on the surface of the lifting slider and are located outside the opening groove.

[0009] Specifically, a forming and discharging mechanism is further provided on the vertical slider. The forming and discharging mechanism includes a cylinder body, a rectangular through groove, a translation cylinder, a second spring, a conical through groove, a push rod, a conical frame and a material receiving frame. Among them, the cylinder body is fixedly connected to the inner wall of the vertical slider, the pressing roller is fixedly connected to one end surface of the cylinder body, the rectangular through groove is symmetrically opened on the surface of the cylinder body, the translation cylinder is horizontally slidably connected to the inner wall of the cylinder body, and the second spring is fixedly connected between the translation cylinder and the inner wall of the cylinder body. The conical through groove is opened at the bottom of the translation cylinder and corresponds to the position of the rectangular through groove. The push rods are uniformly fixedly connected to one end surface of the translation cylinder and are located outside the second spring. One end of the push rod penetrates outside the cylinder body and is slidably connected to the outer surface of the pressing roller. The conical frame is fixedly connected to the surface of the frame body and corresponds to the position of the rectangular through groove. The conical frame is respectively slidably connected to the inner walls of the conical through groove and the rectangular through groove. The material receiving frame is fixedly connected to the surface of the frame body and is located on one side of the pressing roller.

[0010] Specifically, the lower mold includes a forming seat body, a semi-circular groove, a first positioning block, a second positioning block, an arc-shaped extrusion seat and a gear driving mechanism. Among them, the forming seat body is fixedly connected to the surface of the frame body and is located on one side of the bottom of the pressing roller. The semi-circular groove is opened at the top of the forming seat body. The first positioning blocks are symmetrically fixedly connected to the top of the forming seat body and are located outside the semi-circular groove. The second positioning blocks are symmetrically fixedly connected to the top of the forming seat body and are located outside the first positioning blocks. The arc-shaped extrusion seats are symmetrically slidably connected to the top of the forming seat body and are located outside the second positioning blocks. The gear driving mechanisms are symmetrically arranged inside the forming seat body and are respectively connected to the tooth plate frame and the arc-shaped extrusion seat. The gear driving mechanism includes a first gear, a second gear and a first threaded screw rod. Among them, the first gear and the second gear are respectively rotatably connected to the inner wall of the forming seat body and mesh with each other. One end of the first gear penetrates outside the forming seat body and is meshed and connected to the teeth on the surface of the tooth plate frame. The first threaded screw rod is rotatably connected to the inner wall of the forming seat body and is fixedly connected to one end of the central axis of the second gear. One end of the arc-shaped extrusion seat penetrates into the inside of the forming seat body and is threadedly connected to the outer surface of the first threaded screw rod.

[0011] Specifically, the forming seat body further includes a material guiding seat. The material guiding seat includes a flat plate seat body and a material guiding frame. The flat plate seat body is fixedly connected to the surface of the frame body and is in contact connection with the surface of the forming seat body. The material guiding frames are symmetrically fixedly connected to the top of the flat plate seat body. The feeding end of the material guiding frame is inclined outward. The discharging end of the material guiding frame corresponds to the position of the second positioning block.

[0012] Specifically, U-shaped grooves are respectively formed at positions on the surfaces of the two groups of arc-shaped extrusion seats corresponding to the first positioning block and the second positioning block. A set gap exists between the two groups of arc-shaped extrusion seats to form a welding groove, and the weld of the semi-finished casing is located at the center of the welding groove.

[0013] Specifically, the square-space cyclic welding mechanism includes a support plate frame, a horizontal sliding frame, a vertical guide frame, a swing frame, a fixed frame, a transmission shaft, a first bevel gear, an irregular disk, and a convex shaft. Among them, the support plate frame is fixedly connected to the surface of the frame body and is located on one side of the lifting slider. The horizontal sliding frame is horizontally slidably connected to the top of the support plate frame. The vertical guide frames are symmetrically and fixedly connected to the top of the horizontal sliding frame. The swing frame is arranged inside the vertical guide frames. One end of the swing frame is hinged and fixed to the top of the horizontal sliding frame. The other end of the swing frame is fixedly connected with the laser welding head and corresponds to the position of the weld. The laser welding head is connected to the controller through a bus to achieve data transmission and instruction reception. The fixed frame is fixedly connected to the top of the support plate frame and is located on one side of the horizontal sliding frame. The transmission shaft is rotatably connected to the inner wall of the fixed frame. One end of the transmission shaft penetrates into the interior of the frame body and is fixedly connected with the first bevel gear. The first bevel gear is connected to the electric drive mechanism. The other end of the transmission shaft penetrates into the interior of the swing frame and is fixedly connected with the irregular disk. The irregular disk is slidably connected to the inner wall of the swing frame. The convex shaft is vertically slidably connected to the inner wall of the vertical guide frame and is fixedly connected to the surface of the irregular disk.

[0014] Specifically, the electric drive mechanism includes a reciprocating lead screw, a motor, a horizontal tooth seat, a third gear, a fourth gear, a second lead screw, a vertical sliding seat, a second bevel gear, and a ratchet-type one-way transmission. Among them, the reciprocating lead screw is rotatably connected to the inner wall of the frame body. The motor is fixedly connected to the surface of the frame body and is connected to the reciprocating lead screw. The motor is connected to the controller through a bus to achieve data transmission and instruction reception. The horizontal tooth seat is threadedly connected to the outer surface of the reciprocating lead screw and is horizontally slidably connected to the inner wall of the frame body. The third gear and the fourth gear are respectively rotatably connected to the inner wall of the frame body and are located on one side of the horizontal tooth seat. The third gear and the fourth gear are respectively meshed with the teeth on the surface of the horizontal tooth seat. The second lead screw is vertically rotatably connected to the inner wall of the frame body and is fixedly connected to one end of the central axis of the third gear. The vertical sliding seat is threadedly connected to the outer surface of the second lead screw and is vertically slidably connected to the inner wall of the frame body. One end of the lifting slider penetrates into the interior of the frame body and is fixedly connected to the surface of the vertical sliding seat. The second bevel gear is rotatably connected to the inner wall of the frame body and is meshed with the first bevel gear. One end of the central axis of the second bevel gear is connected to one end of the central axis of the fourth gear through the ratchet-type one-way transmission.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High - efficiency integration and process simplification: The present invention innovatively integrates the forming device and the welding device of the filter protection net on the same frame, realizing continuous and automated operations from the coiling and forming of the sheet to the welding of the weld. This design completely abandons the multiple material transfer links in traditional production, enabling the drum to immediately enter the welding process after forming, greatly shortening the production cycle and significantly improving the overall operation efficiency. 2. Reduction of labor intensity and saving of labor costs: Through a highly automated production process, the present invention significantly reduces manual intervention, especially eliminating the cumbersome steps of manual alignment of welds, manual operation of spot welders, and manual blanking. This not only effectively reduces the labor intensity of workers but also avoids errors caused by human factors, thus saving labor costs and enhancing production safety. 3. Improvement of processing accuracy and optimization of welding quality: The integrated design makes the forming and welding processes closely linked, reducing errors that may be introduced due to transfer and re - positioning. At the same time, precise mechanical control and advanced welding technology ensure the accurate butt - joint of the welds and high - quality welding. High processing accuracy and welding quality can be achieved in a single operation, improving the overall performance and service life of the filter protection net. 4. Good use effect and enhanced market competitiveness: Compared with the coiling machine and the electric welder, this device occupies a small area, and its single - power - source design effectively saves production costs. Due to the above - mentioned many advantages, the filter protection net produced by the present invention not only has excellent quality but also high production efficiency and low cost. This not only enhances the market competitiveness of the product but also brings a better user experience to users, meeting the urgent market demand for high - quality filter accessories. Brief Description of the Drawings

[0017] The above - mentioned and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where: Figure 1 is a schematic structural diagram of a filter net welding device of the present invention; Figure 2 is a filter net welding device of the present invention Figure 1 Schematic enlarged view of the structure at A in; Figure 3 is a schematic structural diagram of the forming and unloading mechanism of a filter net welding device of the present invention; Figure 4Schematic diagram of the material guiding seat structure in a filter screen welding device of the present invention; Figure 5 Schematic diagram of the lower die structure in a filter screen welding device of the present invention; Figure 6 Schematic diagram of the loop space circular welding mechanism structure in a filter screen welding device of the present invention; Figure 7 Schematic diagram of the electric drive mechanism structure in a filter screen welding device of the present invention.

[0018] As shown in the figure: 1. Frame body; 2. Cylinder forming assembly; 3. Loop space circular welding assembly; 21. Lifting slider; 22. Upper die; 23. Lower die; 31. Loop space circular welding mechanism; 32. Laser welding head; 11. Electric drive mechanism; 12. Controller; 221. Vertical slider; 222. First spring; 223. Pressing roller; 224. Tooth plate frame; 24. Forming and discharging mechanism; 241. Cylinder body; 242. Rectangular through groove; 243. Translating cylinder; 244. Second spring; 245. Conical through groove; 246. Push rod; 247. Conical frame; 248. Material receiving frame; 231. Forming seat; 232. Semi-circular groove; 233. First positioning block; 234. Second positioning block; 235. Arc extrusion seat; 236. Gear drive mechanism; 2361. First gear; 2362. Second gear; 2363. First threaded lead screw; 25. Material guiding seat; 251. Flat seat body; 252. Material guiding frame; 2351. U-shaped groove; 311. Support plate frame; 312. Horizontal sliding frame; 313. Vertical guiding frame; 314. Swing frame; 315. Fixed frame; 316. Transmission shaft; 317. First bevel gear; 318. Irregular disk; 319. Convex shaft; 111. Reciprocating lead screw; 112. Motor; 113. Horizontal tooth seat; 114. Third gear; 115. Fourth gear; 116. Second threaded lead screw; 117. Vertical sliding seat; 118. Second bevel gear; 119. Ratchet type one-way transmission; Detailed implementation method

[0019] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0020] A filter screen welding device according to an embodiment of the present invention will be described below in conjunction with the accompanying drawings.

[0021] As Figures 1 - 7 shown, a filter screen welding device according to an embodiment of the present invention includes a frame 1, a cylinder forming assembly 2, and a square space circular welding assembly 3, wherein: The cylinder forming assembly 2 includes a lifting slider 21, an upper mold 22, and a lower mold 23. Among them, the lifting slider 21 is vertically slidably connected to the surface of the frame 1, the upper mold 22 is fixedly connected to the surface of the lifting slider 21, the lower mold 23 is fixedly connected to the surface of the frame 1 and is accurately aligned with the upper mold 22. The square space circular welding assembly 3 includes a square space circular welding mechanism 31 and a laser welding head 32. Among them, the square space circular welding mechanism 31 is fixedly connected to the surface of the frame 1 and is located on one side of the lifting slider 21, and the laser welding head 32 is fixedly connected to the surface of the square space circular welding mechanism 31; both the lifting slider 21 and the square space circular welding mechanism 31 are driven by an electric drive mechanism 11 provided inside the frame 1. The operation of the lifting slider 21 drives the upper mold 22 to vertically lift and lower. By closely cooperating with the lower mold 23, the plate-shaped filter screen placed on the lower mold 23 is efficiently extruded into a cylindrical filter cylinder. The operation of the square space circular welding mechanism 31 synchronously drives the laser welding head 32 to flexibly move along a preset square-shaped trajectory and weld the weld. The entire device is centrally controlled by a controller 12. The controller 12 is fixedly connected to the surface of the frame 1 and is seamlessly connected to the electric drive mechanism 11 and the laser welding head 32 through an efficient bus system to ensure high-speed data transmission and instant response to control instructions.

[0022] It should be noted that the laser welding head 32 and the controller 12 described in this embodiment are both prior arts, and their structures, connection relationships, and working principles will not be elaborated herein.

[0023] Specifically, the present invention innovatively integrates the forming device and the welding device of the filter protection net ingeniously on the same frame 1, realizing continuous and automated operations from the rolling and forming of the plate to the welding of the weld seam. This design completely abandons the multiple material transfer links in traditional production, enabling the rotating cylinder to immediately enter the welding process after forming, greatly shortening the production cycle and significantly improving the overall operation efficiency. Among them, the forming process adopted by this device is extrusion forming. Compared with the complex operations of traditional rolling machines, the extrusion forming process adopted by this device is more direct and efficient. Through the precise design of the die combination and the precise control of the electric drive mechanism 11, the plate-shaped protection net is quickly and evenly extruded into a cylindrical protection cylinder, which not only simplifies the production process but also greatly shortens the forming time. Moreover, the shape of the protection cylinder after extrusion is regular and the dimensions are consistent, providing an excellent positioning reference for the subsequent welding device. This characteristic not only reduces the adjustment time before welding but also ensures the accuracy of the welding position, laying a solid foundation for high-quality welding. The welding method adopted by this device is non-contact laser welding. The non-contact laser welding technology introduced by this device realizes remote and continuous welding of the weld seam. The high energy density and precise control of the laser beam ensure the rapidity and stability of the welding process, while avoiding problems such as heat stress concentration and deformation that may be caused by traditional spot welding. The welding quality is significantly improved, and the weld seam is beautiful and firm. Among them, the laser welding head 32 moves flexibly along the preset figure-eight trajectory. The design of this fixed trajectory not only ensures the accuracy of the welding position but also realizes the optimization of the welding path. By precisely controlling the welding speed and laser power, the continuity and stability of the welding process are ensured, further improving the welding efficiency and quality. In addition, the non-contact welding method fundamentally eliminates the collision risk that may occur during the welding process, ensuring the safety of the equipment and the workpiece. At the same time, the automation and intelligence characteristics of laser welding also reduce the difficulty and risk of manual operation and improve the safety of production operations.

[0024] Its working principle is as follows: Place the plate-shaped protection net to be processed on the lower die 23 and ensure its correct position. The controller 12 issues an instruction to start the operation of the electric drive mechanism 11. The electric drive mechanism 11 first drives the lifting slider 21 to descend, and then drives the figure-eight space circular welding mechanism 31 to operate. The descent of the lifting slider 21 drives the upper die 22 to closely contact the lower die 23, and the plate-shaped protection net is formed into a cylindrical protection cylinder by extrusion. The operation of the figure-eight space circular welding mechanism 31 drives the laser welding head 32 to move along the preset figure-eight trajectory and automatically weld the weld seam during the movement. After welding, the figure-eight space circular welding mechanism 31 drives the laser welding head 32 to reset to the initial position and wait for the next operation. As the electric drive mechanism 11 continues to operate, after separating from the figure-eight space circular welding mechanism 31, it drives the lifting slider 21 to rise. After the lifting slider 21 rises to the initial position, the formed protection cylinder is released.

[0025] In an embodiment of the present invention, as Figure 2 shown, the upper die 22 includes a vertical slider 221, a first spring 222, a pressure roller 223, and a toothed plate frame 224. Among them, an opening groove is formed at the bottom of the lifting slider 21. The vertical slider 221 is vertically slidably connected to the inner wall of the opening groove, and a first spring 222 is fixedly connected between the vertical slider 221 and the inner wall of the opening groove. The pressure roller 223 is fixedly connected to the surface of the vertical slider 221. The toothed plate frame 224 is symmetrically integrally formed on the surface of the lifting slider 21 and is located outside the opening groove.

[0026] Specifically, further illustrate the structure and connection relationship of the upper die 22. Among them, the pressure roller 223 precisely acts on the center of the plate member and first presses it into a semicircle, laying a solid foundation for subsequent forming. Subsequently, through the ingenious drive of the toothed plate frame 224, the gear drive mechanism 236 in the lower die 23 is activated, leading the two arc-shaped extrusion seats 235 to synchronously and precisely push inward, evenly extruding both ends of the plate member until it is perfectly transformed into a cylindrical shape. During this process, the ingenious combination of the vertical slider 221 and the first spring 222 not only ensures the timing of the extrusion operation, that is, the order of first in the middle and then at both ends is executed, but also optimizes the extrusion dynamics by introducing a time difference, avoiding problems such as stress concentration and uneven forming that may be caused by synchronous extrusion. This innovative extrusion strategy of first in the middle and then at both ends significantly improves the quality and stability of extrusion forming, making the final product more in line with the design requirements and demonstrating excellent process control capabilities and design wisdom.

[0027] In an embodiment of the present invention, as Figures 1 - 3 shown, a forming and unloading mechanism 24 is further provided on the vertical slider 221. The forming and unloading mechanism 24 includes a cylinder body 241, a rectangular through groove 242, a translation cylinder 243, a second spring 244, a tapered through groove 245, a push rod 246, a tapered frame 247, and a receiving frame 248. Among them, the cylinder body 241 is fixedly connected to the inner wall of the vertical slider 221. The pressure roller 223 is fixedly connected to the surface of one end of the cylinder body 241. The rectangular through grooves 242 are symmetrically formed on the surface of the cylinder body 241. The translation cylinder 243 is horizontally slidably connected to the inner wall of the cylinder body 241, and a second spring 244 is fixedly connected between the translation cylinder 243 and the inner wall of the cylinder body 241. The tapered through groove 245 is formed at the bottom of the translation cylinder 243 and corresponds to the position of the rectangular through groove 242. The push rods 246 are evenly fixedly connected to the surface of one end of the translation cylinder 243 and are located outside the second spring 244. One end of the push rod 246 penetrates outside the cylinder body 241 and is slidably connected to the outer surface of the pressure roller 223. The tapered frame 247 is fixedly connected to the surface of the frame body 1 and corresponds to the position of the rectangular through groove 242. The tapered frame 247 is slidably connected to the inner walls of both the tapered through groove 245 and the rectangular through groove 242. The receiving frame 248 is fixedly connected to the surface of the frame body 1 and is located on one side of the pressure roller 223.

[0028] Specifically, the structure and connection relationship of the forming and unloading mechanism 24 will be further described. In order to further improve production efficiency and reduce labor intensity, the device is also specially provided with a forming and unloading mechanism 24. This innovative design can automatically perform the unloading operation after the welding of the casing is completely formed, completely replacing the traditional manual unloading method. Through precise mechanical control and automated operation processes, the forming and unloading mechanism 24 can ensure that the casing is immediately, smoothly and safely removed from the working area after forming, creating space for the subsequent production process, thus significantly improving the overall production efficiency. In addition, automated unloading also greatly reduces the labor intensity of the operator, avoiding the physical fatigue and injury risks that may be caused by long-term repetitive labor, and has better use effects.

[0029] Its working principle is as follows: After the welding of the casing is completely formed, the lifting slider 21 rises under the drive of the electric drive mechanism 11. The rising of the lifting slider 21 synchronously drives the cylinder body 241 to rise. During the rising process of the cylinder body 241, the cylinder body 241 and the translation column 243 move upward along the surface of the conical frame 247 synchronously. When the conical frame 247 is separated from the conical through groove 245, the translation column 243 is reset under the elastic force of the second spring 244. The reset of the translation column 243 synchronously drives the push rod 246 to extend outside the cylinder body 241 and push the casing sleeved on the surface of the pressure roller 223 to move towards the receiving rack 248. When the translation column 243 is completely reset, the casing falls into the receiving rack 248 and is guided by the receiving rack 248 into the collection box or onto the conveyor belt of the next process.

[0030] In an embodiment of the present invention, as Figures 4 - 5As shown in the figure, the lower die 23 includes a forming base 231, a semi-circular groove 232, a first positioning block 233, a second positioning block 234, an arc-shaped extrusion seat 235 and a gear drive mechanism 236. Among them, the forming base 231 is fixedly connected to the surface of the frame body 1 and is located on one side of the bottom of the pressure roller 223. The semi-circular groove 232 is opened at the top of the forming base 231. The first positioning blocks 233 are symmetrically and fixedly connected to the top of the forming base 231 and are located outside the semi-circular groove 232. The second positioning blocks 234 are symmetrically and fixedly connected to the top of the forming base 231 and are located outside the first positioning blocks 233. The arc-shaped extrusion seats 235 are symmetrically and slidably connected to the top of the forming base 231 and are located outside the second positioning blocks 234. The gear drive mechanisms 236 are symmetrically arranged inside the forming base 231 and are respectively connected to the tooth plate frame 224 and the arc-shaped extrusion seat 235. The gear drive mechanism 236 includes a first gear 2361, a second gear 2362 and a first threaded lead screw 2363. Among them, the first gear 2361 and the second gear 2362 are respectively rotatably connected to the inner wall of the forming base 231 and are meshed with each other. One end of the first gear 2361 penetrates outside the forming base 231 and is meshed with the teeth on the surface of the tooth plate frame 224. The first threaded lead screw 2363 is rotatably connected to the inner wall of the forming base 231 and is fixedly connected to one end of the central axis of the second gear 2362. One end of the arc-shaped extrusion seat 235 penetrates into the inside of the forming base 231 and is threadedly connected to the outer surface of the first threaded lead screw 2363.

[0031] Specifically, the structure and connection relationship of the lower die 23 are further described. The semi-circular groove 232 is provided to cooperate with the pressure roller 223 to press the center position of the plate-shaped guard net into a semi-circular shape. The first positioning block 233 and the second positioning block 234 are provided to accurately position the plate-shaped guard net. The arc-shaped extrusion seat 235 is provided to squeeze both ends of the plate-shaped guard net so that the guard net is completely squeezed into a cylindrical shape. The gear drive mechanism 236 is provided to be connected to the tooth plate frame 224, thereby driving the arc-shaped extrusion seat 235 to move. During use, the plate-shaped guard net is placed inside the second positioning block 234 and abuts against the first positioning block 233 to achieve accurate placement. Then, the lifting slider 21 descends, and the synchronous descent of the lifting slider 21 drives the pressure roller 223 to descend. When the pressure roller 223 contacts the plate-shaped guard net, it will press the guard net into the semi-circular groove 232, thereby squeezing the middle of the guard net into a semi-circular shape. As the lifting slider 21 continues to descend, affected by the extrusion force of the semi-circular groove 232, the pressure roller 223 synchronously drives the vertical slider 221 to rise and squeeze the first spring 222. At the same time, the synchronous descent of the lifting slider 21 drives the tooth plate frame 224 to descend. When the tooth plate frame 224 contacts the gear drive mechanism 236, the gear drive mechanism 236 will be triggered to operate. The operation of the gear drive mechanism 236 synchronously drives the arc-shaped extrusion seat 235 to move inward and squeeze both ends of the guard net, so that it is completely squeezed into a cylindrical shape.

[0032] In one embodiment of the present invention, Figure 5 As shown, the molding seat body 231 also includes a material guide seat 25, and the material guide seat 25 includes a flat plate seat body 251 and a material guide rack 252. The flat plate seat body 251 is fixedly connected to the surface of the frame body 1 and is in contact with the surface of the molding seat body 231. The material guide rack 252 is symmetrically fixedly connected to the top of the flat plate seat body 251. The feed end of the material guide rack 252 is tilted outward, and the discharge end of the material guide rack 252 corresponds to the position of the second positioning block 234.

[0033] Specifically, the structure and connection relationship of the material guide seat 25 are further explained. In order to optimize the feeding process of the plate-shaped protective net and improve the convenience and efficiency of operation, the present device specially introduces the material guide seat 25. The material guide seat 25 is carefully designed as a combination structure of a flat plate seat body 251 and a material guide frame 252, aiming to overcome the inconvenience of feeding caused by the circular welding mechanism 31 of the circular space being arranged on the top of the forming seat body 231. Specifically, the feeding end of the material guide frame 252 adopts an ingenious design of tilting outward. This humanized layout greatly simplifies the placement of the plate-shaped protective net. The action enables the operator to easily guide the guard net to the inner side of the guide rack 252, and the discharge end of the guide rack 252 accurately corresponds to the position of the second positioning block 234. This design ensures that the guard net can be accurately pushed to the predetermined molding position, that is, the inner side of the second positioning block 234, while sliding smoothly along the inner wall of the guide rack 252. This design not only saves the tedious steps of visual docking, significantly improves the simplicity and accuracy of loading, but also greatly improves the overall operation efficiency, making the entire loading process smoother and more efficient. Therefore, the introduction of the guide seat 25 is undoubtedly an important improvement in the convenience of operation and the use effect of the device.

[0034] In one embodiment of the present invention, Figure 5 As shown, U-shaped grooves 2351 are respectively opened on the surfaces of the two groups of arc extrusion seats 235 corresponding to the positions of the first positioning block 233 and the second positioning block 234. A set gap is provided between the two groups of arc extrusion seats 235 to form a welding groove, and the weld of the semi-finished casing is located at the center of the welding groove. Specifically, the ingenious design of the U-shaped groove 2351 cleverly avoids the interference area between the first positioning block 233 and the second positioning block 234, ensuring unobstructed movement of the arc-shaped extrusion seat 235 during dynamic movement, avoiding unnecessary touches, thus guaranteeing the stable operation of the equipment and extending its service life. This design not only improves the smoothness of operation but also significantly enhances the use effect of the equipment. In addition, the set gap carefully reserved between the two groups of arc-shaped extrusion seats 235 not only forms an ideal welding groove space but also ensures that the weld seam of the semi-finished protective cylinder can be accurately positioned at the center of the welding groove. This precise positioning mechanism greatly improves the quality and consistency of the weld seam, reduces the need for subsequent processing and correction, and further improves production efficiency and product quality. Therefore, while ensuring the accuracy of the weld seam position, this design also greatly enhances the overall use effect, which is another key to improving the performance of the equipment and product quality.

[0035] In an embodiment of the present invention, as Figure 6 shown, the square space cyclic welding mechanism 31 includes a support plate frame 311, a horizontal sliding frame 312, a vertical guide frame 313, a swing frame 314, a fixed frame 315, a transmission shaft 316, a first bevel gear 317, an irregular disk 318, and a convex shaft 319. Among them, the support plate frame 311 is fixedly connected to the surface of the frame body 1 and is located on one side of the lifting slider 21. The horizontal sliding frame 312 is horizontally slidably connected to the top of the support plate frame 311. The vertical guide frames 313 are symmetrically and fixedly connected to the top of the horizontal sliding frame 312. The swing frame 314 is arranged inside the vertical guide frames 313. One end of the swing frame 314 is fixedly hinged to the top of the horizontal sliding frame 312. The other end of the swing frame 314 is fixedly connected with a laser welding head 32 and corresponds to the weld seam position. The laser welding head 32 is connected to the controller 12 through a bus to achieve data transmission and instruction reception. The fixed frame 315 is fixedly connected to the top of the support plate frame 311 and is located on one side of the horizontal sliding frame 312. The transmission shaft 316 is rotatably connected to the inner wall of the fixed frame 315. One end of the transmission shaft 316 penetrates into the frame body 1 and is fixedly connected with a first bevel gear 317. The first bevel gear 317 is connected to the electric drive mechanism 11. The other end of the transmission shaft 316 penetrates into the swing frame 314 and is fixedly connected with an irregular disk 318. The irregular disk 318 is slidably connected to the inner wall of the swing frame 314. The convex shaft 319 is vertically slidably connected to the inner wall of the vertical guide frame 313 and is fixedly connected to the surface of the irregular disk 318.

[0036] Specifically, the structure and connection relationship of the square space circular welding mechanism 31 will be further described. The square space circular welding mechanism 31 can drive the laser welding head 32 to move flexibly along a preset square-shaped trajectory. The design of this fixed trajectory not only ensures the accuracy of the welding position but also realizes the optimization of the welding path. During use, the electric drive mechanism 11 operates to drive the first bevel gear 317 to rotate synchronously. The rotation of the first bevel gear 317 drives the transmission shaft 316 and the irregular disk 318 to rotate synchronously. The rotation of the irregular disk 318 drives the swing frame 314 to swing and synchronously drives the convex shaft 319 to move along the inner wall of the vertical guide 313. The swing of the swing frame 314 drives the laser welding head 32 to move synchronously. The movement of the convex shaft 319 along the inner wall of the vertical guide 313 drives the vertical guide 313 and the horizontal slide 312 to move synchronously. Through the cooperation of the above components, the laser welding head 32 can move along a square-shaped trajectory. During the movement of the laser welding head 32, it corresponds to the position of the weld seam and performs automatic welding operations on the weld seam.

[0037] In an embodiment of the present invention, as Figure 1 and Figure 7 shown, the electric drive mechanism 11 includes a reciprocating lead screw 111, a motor 112, a horizontal tooth seat 113, a third gear 114, a fourth gear 115, a second lead screw 116, a vertical slide 117, a second bevel gear 118, and a ratchet one-way transmission 119. Among them, the reciprocating lead screw 111 is rotatably connected to the inner wall of the frame 1. The motor 112 is fixedly connected to the surface of the frame 1 and is connected to the reciprocating lead screw 111. The motor 112 is connected to the controller 12 through a bus to achieve data transmission and instruction reception. The horizontal tooth seat 113 is threadedly connected to the outer surface of the reciprocating lead screw 111 and is horizontally slidably connected to the inner wall of the frame 1. The third gear 114 and the fourth gear 115 are respectively rotatably connected to the inner wall of the frame 1 and are located on one side of the horizontal tooth seat 113. The third gear 114 and the fourth gear 115 are respectively meshed with the teeth on the surface of the horizontal tooth seat 113. The second lead screw 116 is vertically rotatably connected to the inner wall of the frame 1 and is fixedly connected to one end of the central axis of the third gear 114. The vertical slide 117 is threadedly connected to the outer surface of the second lead screw 116 and is vertically slidably connected to the inner wall of the frame 1. One end of the lifting slider 21 penetrates into the interior of the frame 1 and is fixedly connected to the surface of the vertical slide 117. The second bevel gear 118 is rotatably connected to the inner wall of the frame 1 and meshes with the first bevel gear 317. One end of the central axis of the second bevel gear 118 is connected to one end of the central axis of the fourth gear 115 through the ratchet one-way transmission 119.

[0038] Specifically, the structure and connection relationship of the electric drive mechanism 11 will be further described. The electric drive mechanism 11 is used to drive the lifting slider 21 and the square space circular welding mechanism 31 to operate successively, so as to realize the forming operation of extrusion first and then welding. At the same time, the design of its one power source is convenient for control and effectively reduces the production cost. When in use, the motor 112 receives an instruction to operate. The operation of the motor 112 synchronously drives the reciprocating lead screw 111 to rotate. The rotation of the reciprocating lead screw 111 synchronously drives the horizontal tooth seat 113 to move horizontally back and forth. During the movement of the horizontal tooth seat 113, it first contacts and meshes with the third gear 114, and synchronously drives the third gear 114 to rotate. The rotation of the third gear 114 synchronously drives the vertical slide seat 117 to descend vertically. The descent of the vertical slide seat 117 synchronously drives the lifting slider 21 to descend. When the horizontal tooth seat 113 is separated from the third gear 114, the position of the vertical slide seat 117 remains unchanged. When the horizontal tooth seat 113 contacts and meshes with the fourth gear 115, the ratchet type one-way transmission 119 synchronously drives the second bevel gear 118 to rotate. The rotation of the second bevel gear 118 synchronously drives the first bevel gear 317 to rotate. When the horizontal tooth seat 113 returns from the end to the start, due to the ratchet type one-way transmission 119 between the fourth gear 115 and the second bevel gear 118, the first bevel gear 317 will not rotate. When the horizontal tooth seat 113 contacts the third gear 114, it will drive the vertical slide seat 117 to rise synchronously. The rise of the vertical slide seat 117 synchronously drives the lifting slider 21 to rise.

[0039] In summary, for a filter screen welding device according to an embodiment of the present invention, the present invention ingeniously integrates the forming device and the welding device of the filter screen on the same frame 1, realizing the full-automatic continuous operation from the coiling of the plate to the welding. This design eliminates the multiple transfers of materials, welds immediately after forming, greatly shortens the cycle, improves the efficiency, and the high degree of automation reduces the manual intervention, especially the weld alignment and welding operations, reduces the labor intensity, avoids human errors, saves labor costs, and enhances the production safety.

[0040] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A filter screen welding device, characterized in that: It comprises a frame (1), a casing forming assembly (2) and a circular space welding assembly (3), wherein: The casing forming assembly (2) comprises a lifting slider (21), an upper mold (22) and a lower mold (23), wherein the lifting slider (21) is vertically slidably connected to the surface of the frame (1), the upper mold (22) is fixedly connected to the surface of the lifting slider (21), the lower mold (23) is fixedly connected to the surface of the frame (1) and is precisely aligned with the upper mold (22), and the U-shaped space circulation welding assembly (3) comprises a U-shaped space circulation welding mechanism (31) and a laser welding head (32), wherein the U-shaped space circulation welding mechanism (31) is fixedly connected to the surface of the frame (1) and is located on one side of the lifting slider (21), and the laser welding head (32) is fixedly connected to the surface of the U-shaped space circulation welding mechanism (31); The lifting slider (21) and the U-shaped space circulation welding mechanism (31) are both driven by an electric drive mechanism (11) disposed inside the frame (1). The operation of the lifting slider (21) drives the upper mold (22) to vertically lift and lower. By closely cooperating with the lower mold (23), the plate-shaped protective net placed on the lower mold (23) is efficiently extruded and formed into a cylindrical protective tube. The operation of the U-shaped space circulation welding mechanism (31) synchronously drives the laser welding head (32) to flexibly move along a preset U-shaped trajectory and weld the weld. The entire device is centrally controlled by a controller (12). The controller (12) is fixedly connected to the surface of the frame (1) and is seamlessly connected to the electric drive mechanism (11) and the laser welding head (32) through an efficient bus system, thereby ensuring high-speed data transmission and instant response to control instructions.

2. The filter screen welding equipment according to claim 1, characterized in that: The upper mold (22) comprises a vertical slider (221), a first spring (222), a pressure roller (223) and a tooth plate frame (224), wherein an open groove is provided at the bottom of the lifting slider (21), the vertical slider (221) is vertically slidably connected to the inner wall of the open groove, and the first spring (222) is fixedly connected to the inner wall of the open groove, the pressure roller (223) is fixedly connected to the surface of the vertical slider (221), and the tooth plate frame (224) is symmetrically integrally formed and arranged on the surface of the lifting slider (21) and is located outside the open groove.

3. The filter screen welding equipment according to claim 2, characterized in that: The vertical slider (221) is also provided with a forming material return mechanism (24), the forming material return mechanism (24) comprising a cylinder (241), a rectangular through slot (242), a translation column (243), a second spring (244), a conical through slot (245), a push rod (246), a conical frame (247) and a material receiving frame (248), wherein the cylinder (241) is fixedly connected to the inner wall of the vertical slider (221), the pressure roller (223) is fixedly connected to the surface of one end of the cylinder (241), the rectangular through slot (242) is symmetrically arranged on the surface of the cylinder (241), the translation column (243) is horizontally slidably connected to the inner wall of the cylinder (241), and the second spring (244) is fixedly connected to the inner wall of the cylinder (241), the conical through slot (245) is fixedly connected to the push rod (246), the conical frame (247) and the material receiving frame (248), wherein the cylinder (241) is fixedly connected to the inner wall of the cylinder (241), and the pressure roller (223) is fixedly connected to the inner wall of the cylinder (241). The rectangular through groove (245) is opened at the bottom of the translation cylinder (243) and corresponds to the position of the rectangular through groove (242); the push rod (246) is evenly fixedly connected to the surface of one end of the translation cylinder (243) and is located outside the second spring (244); one end of the push rod (246) passes through the outside of the cylinder (241) and is slidably connected to the outer surface of the pressure roller (223); the conical frame (247) is fixedly connected to the surface of the frame (1) and corresponds to the position of the rectangular through groove (242); the conical frame (247) is slidably connected to the inner wall of the conical through groove (245) and the inner wall of the rectangular through groove (242) respectively; the material receiving frame (248) is fixedly connected to the surface of the frame (1) and is located on one side of the pressure roller (223).

4. The filter screen welding equipment according to claim 3, characterized in that: The lower mold (23) comprises a molding seat body (231), a semicircular groove (232), a first positioning block (233), a second positioning block (234), an arc-shaped extrusion seat (235) and a gear drive mechanism (236), wherein the molding seat body (231) is fixedly connected to the surface of the frame body (1) and is located on one side of the bottom of the pressing roller (223), the semicircular groove (232) is opened on the top of the molding seat body (231), and the first positioning block (233) is symmetrically fixedly connected to the top of the molding seat body (231). and is located outside the semicircular groove (232); the second positioning block (234) is symmetrically fixedly connected to the top of the forming seat body (231) and is located outside the first positioning block (233); the arc-shaped extrusion seat (235) is symmetrically slidably connected to the top of the forming seat body (231) and is located outside the second positioning block (234); the gear driving mechanism (236) is symmetrically arranged inside the forming seat body (231) and is respectively connected to the tooth plate frame (224) and the arc-shaped extrusion seat (235); The gear drive mechanism (236) comprises a first gear (2361), a second gear (2362) and a first threaded screw (2363), wherein the first gear (2361) and the second gear (2362) are respectively rotatably connected to the inner wall of the molding seat body (231) and mesh with each other, one end of the first gear (2361) passes through the outside of the molding seat body (231) and meshes with the teeth on the surface of the tooth plate frame (224), the first threaded screw (2363) is rotatably connected to the inner wall of the molding seat body (231) and is fixedly connected to one end of the central axis of the second gear (2362), and one end of the arc-shaped extrusion seat (235) passes through the inside of the molding seat body (231) and is threadedly connected to the outer surface of the first threaded screw (2363).

5. The filter screen welding equipment according to claim 4, characterized in that: The molding seat (231) further comprises a material guide seat (25), the material guide seat (25) comprising a flat plate seat (251) and a material guide frame (252), the flat plate seat (251) being fixedly connected to the surface of the frame (1) and being in contact with the surface of the molding seat (231), the material guide frame (252) being symmetrically fixedly connected to the top of the flat plate seat (251), the material feed end of the material guide frame (252) being inclined outward, and the material discharge end of the material guide frame (252) corresponding to the position of the second positioning block (234).

6. The filter screen welding equipment according to claim 4, characterized in that: U-shaped grooves (2351) are respectively provided at positions on the surfaces of the two groups of arc-shaped extrusion seats (235) corresponding to the positions of the first positioning block (233) and the second positioning block (234), and a set gap is provided between the two groups of arc-shaped extrusion seats (235) to form a welding groove, and the weld of the semi-finished casing is located at the center of the welding groove.

7. The filter screen welding equipment according to claim 2, characterized in that: The circular welding mechanism (31) comprises a support plate frame (311), a horizontal slide (312), a vertical guide frame (313), a swing frame (314), a fixed frame (315), a transmission shaft (316), a first bevel gear (317), an irregular disk (318) and a convex shaft (319), wherein the support plate frame (311) is fixedly connected to the surface of the frame body (1) and is located on one side of the lifting slider (21), the horizontal slide (312) is horizontally slidably connected to the top of the support plate frame (311), the vertical guide frame (313) is symmetrically fixedly connected to the top of the horizontal slide (312), the swing frame (314) is arranged on the inner side of the vertical guide frame (313), one end of the swing frame (314) is hingedly fixed to the top of the horizontal slide (312), and the other end of the swing frame (314) is fixedly connected to the laser welding head (32) and corresponds to the position of the weld. The laser welding head (32) is connected to the controller (12) via a bus to achieve data transmission and command reception. The fixed frame (315) is fixedly connected to the top of the support plate frame (311) and is located on one side of the horizontal slide (312). The transmission shaft (316) is rotatably connected to the inner wall of the fixed frame (315). One end of the transmission shaft (316) penetrates into the frame body (1) and is fixedly connected to the first bevel gear (317). The first bevel gear (317) is connected to the electric drive mechanism (11). The other end of the transmission shaft (316) penetrates into the swing frame (314) and is fixedly connected to the irregular disk (318). The irregular disk (318) is slidably connected to the inner wall of the swing frame (314). The convex shaft (319) is vertically slidably connected to the inner wall of the vertical guide frame (313) and is fixedly connected to the surface of the irregular disk (318).

8. The filter screen welding equipment according to claim 7, characterized in that: The electric drive mechanism (11) comprises a reciprocating screw (111), a motor (112), a horizontal gear seat (113), a third gear (114), a fourth gear (115), a second threaded screw (116), a vertical slide seat (117), a second bevel gear (118) and a ratchet-type one-way transmission (119), wherein the reciprocating screw (111) is rotatably connected to the inner wall of the frame (1), the motor (112) is fixedly connected to the surface of the frame (1) and connected to the reciprocating screw (111), the motor (112) is connected to the controller (12) via a bus to achieve data transmission and command reception, the horizontal gear seat (113) is threadedly connected to the outer surface of the reciprocating screw (111) and horizontally slidably connected to the inner wall of the frame (1), the third gear (114) and the fourth gear (115) are respectively rotatably connected to the inner wall of the frame (1) and are located at the inner wall of the frame (1). On one side of the horizontal gear seat (113), the third gear (114) and the fourth gear (115) are respectively meshed with the teeth on the surface of the horizontal gear seat (113); the second threaded screw (116) is vertically rotatably connected to the inner wall of the frame (1) and is fixedly connected to one end of the central axis of the third gear (114); the vertical slide (117) is threadedly connected to the outer surface of the second threaded screw (116) and is vertically slidably connected to the inner wall of the frame (1); one end of the lifting slide block (21) penetrates into the interior of the frame (1) and is fixedly connected to the surface of the vertical slide (117); the second bevel gear (118) is rotatably connected to the inner wall of the frame (1) and meshes with the first bevel gear (317); one end of the central axis of the second bevel gear (118) is connected to one end of the central axis of the fourth gear (115) through the ratchet one-way transmission (119).

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