Automatic edge rolling, shaping and flanging forming machine

By designing an automatic round flange forming machine, integrating multiple processes into one device, and synchronous control through CNC mechanism, the problem of material materials in the prior art need to be transferred to another device for flange processing is solved, and an efficient production process is achieved.

CN119657751APending Publication Date: 2025-03-21COB PRECISION PARTS
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411932783.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

In the prior art, after the rolling round shape, the material needs to be transferred to another device for flanking treatment, resulting in increased production complexity and reduced efficiency.

Method used

An automatic round rolling and integral flange forming machine is designed, integrating feeding, feeding, round rolling and rounding processes in a single device, and these processes are controlled simultaneously through a CNC mechanism to reduce the material transfer time.

Benefits of technology

It realizes that all processes of material materials are completed on the same equipment, reduces material transfer time, improves production efficiency, and greatly improves overall production efficiency through parallel processing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119657751A_ABST
    Figure CN119657751A_ABST
Patent Text Reader

Abstract

The invention discloses an automatic edge rolling, shaping and flanging forming machine, belongs to the field of metal or composite strip punch forming, solves the problem that the production is time-consuming and labor-consuming, and adopts the technical scheme that the automatic edge rolling, shaping and flanging forming machine comprises a machine body, and the machine body is provided with a feeding mechanism, a feeding mechanism, an edge rolling and forming mechanism, a punching and shearing mechanism, a flanging and material changing mechanism, a flanging mechanism and a numerical control mechanism; the feeding mechanism, the feeding mechanism, the edge rolling forming mechanism, the punching and shearing mechanism, the edge turning and material changing mechanism and the edge turning mechanism are all controlled by the numerical control mechanism, materials enter from the feeding mechanism and are conveyed into the edge rolling forming mechanism through the feeding mechanism, and the edge turning and material changing mechanism comprises a reversing driving part, an edge turning disc and edge turning dies arranged at different stations on the edge turning disc. A material which is sheared by the edge rolling forming mechanism and the punching shearing mechanism and is subjected to edge rolling forming is conveyed to the edge turning die, the edge turning mechanism is used for edge turning of the material on the edge turning die, and the reversing driving part drives the edge turning disc to rotate to change the position of the material. The production efficiency is mainly improved, and production is more convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of metal or composite strip stamping and forming, in particular to an automatic rounding and flanging forming machine. Background Art

[0002] Rolling and shaping refers to applying external force to materials such as plates and strips by presses and dies to cause plastic deformation or separation, thereby obtaining materials of the desired shape and size. The stamped blanks are mainly steel strips or strip composite materials. In the prior art, such as the utility model patent CN221773199U and the invention patent CN117983746A, there is a lack of flanging structure. After the rolling and shaping is completed, the material needs to be transferred to another designated location or machine for flanging. This process separation increases the complexity of production, prolongs the time of the entire production process, and reduces efficiency. Summary of the invention

[0003] The purpose to be achieved by the present invention is to provide an automatic rolling and flanging forming machine, which solves the problem of laborious and time-consuming production in the prior art, improves production efficiency, and makes production more convenient.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automatic rolling and flanging forming machine, including a machine body, on which a feeding mechanism, a feeding mechanism, a rolling forming mechanism, a punching and shearing mechanism, a flanging material changing mechanism, a flanging mechanism and a numerical control mechanism are provided. The feeding mechanism, the feeding mechanism, the rolling forming mechanism, the punching and shearing mechanism, the flanging material changing mechanism and the flanging mechanism are all controlled by the numerical control mechanism. The material enters from the feeding mechanism and is transported into the rolling forming mechanism by the feeding mechanism. The flanging material changing mechanism includes a reversing drive, a flanging disk and a plurality of flanging dies arranged at different positions on the flanging disk. The material that has been sheared and rolled by the rolling forming mechanism and the punching and shearing mechanism is transported to the flanging die. The flanging mechanism is used to flanging the material on the flanging die, and the reversing drive drives the flanging disk to rotate to change the position of the material.

[0005] After adopting the above technical scheme, the present invention has the following advantages: the processes of feeding, conveying, rolling forming, punching and shearing, flanging and material changing, and flanging are integrated into one device, and all the processes are completed on the same machine, which makes production more convenient, reduces the transfer time of materials to other devices, and improves production efficiency. In addition, the reversing drive drives the flanging disk to rotate to change the position of the material, and the feeding mechanism, feeding mechanism, rolling forming mechanism, punching and shearing mechanism, flanging and material changing mechanism, and flanging mechanism are controlled by the numerical control mechanism to synchronously perform automatic feeding, feeding, shearing, rolling forming and flanging of the material, which is not easy to cause accumulation of materials, and further improves production efficiency.

[0006] Furthermore, the plurality of flanging dies are distributed on the flanging dies along the circumferential direction, and the rolling forming mechanism and the flanging mechanism are applied to different flanging dies. While the rolling forming mechanism transports the rolled material to the flanging die, the flanging mechanism flangings the material in other flanging dies on the flanging disk.

[0007] By adopting the above-mentioned technical solution, the material after rolling can be directly transported to the flanging mold required for the next process. The whole process does not require pause or waiting. The rolling forming mechanism and the flanging mechanism can work at the same time, one is processing new material for rolling forming, and the other is flanging the material that has been rolled. The parallel processing method greatly improves production efficiency.

[0008] Furthermore, the reversing drive component includes a driving motor, an active transmission wheel, a transmission belt, a passive transmission wheel and a transmission shaft, the transmission shaft is fixedly connected to the flange disk, the output shaft of the driving motor is fixedly connected to the active transmission wheel, the passive transmission wheel is fixedly connected to the transmission shaft, and the active transmission wheel and the passive transmission wheel are connected via a transmission belt.

[0009] By adopting the above-mentioned technical solution, the active transmission wheel and the passive transmission wheel are connected by a transmission belt. This flexible connection method can absorb vibration, making the entire transmission system run more smoothly, thereby minimizing the possibility of materials falling off the flanging die.

[0010] Furthermore, the flanging mechanism includes a first linear motor, a guide column, a flanging mold, and a connecting rod assembly. The guide column is slidably installed on the machine body. The extension direction of the output shaft of the first linear motor is different from the sliding direction of the guide column. The first linear motor is reversed through the connecting rod assembly and is connected to the guide column to drive the guide column to slide.

[0011] By adopting the aforementioned technical solution, the first linear motor is connected to the guide column through the connecting rod assembly to drive the guide column to slide, so that the first linear motor can be installed at different positions of the machine body, avoiding the requirement that the first linear motor and the guide column must be arranged along the same axis in the traditional design. The non-coaxial design allows the overall structure of the flanging mechanism to be more compact, reduces the length in a specific direction, and is more suitable for installation in limited space.

[0012] Furthermore, the connecting rod assembly includes a fifth connecting rod, a sixth connecting rod and a seventh connecting rod, one end of the fifth connecting rod is fixedly connected to the output shaft of the first linear motor, the sixth connecting rod and the seventh connecting rod are respectively located on both sides of the axis of the fifth connecting rod, one end of the sixth connecting rod and one end of the seventh connecting rod are hinged to the other end of the fifth connecting rod at the same time, the other end of the sixth connecting rod is hinged to the guide column, and the other end of the seventh connecting rod is hinged to the body, and the telescopic movement of the output shaft of the first linear motor drives the sixth connecting rod and the seventh connecting rod to rotate through the fifth connecting rod, thereby driving the guide column to slide.

[0013] By adopting the above-mentioned technical solution, the connecting rod structure can effectively change the direction of force through articulation, allowing the first linear motor to be installed in a position that is not directly along the axis of the guide column, making the entire flanging mechanism more compact, reducing the length of the flanging mechanism in a specific direction, and allowing the first linear motor to be flexibly arranged according to actual needs without being restricted by the movement path of the guide column.

[0014] Furthermore, the feeding mechanism includes a lower supporting roller, a guide roller and an upper pressure roller, the lower supporting roller and the upper pressure roller are arranged up and down and have a feeding channel between each other, the guide roller and the feeding channel are arranged left and right, and the guide roller is provided with a limiting sleeve arranged at a front and rear interval, and a limiting channel connected to the feeding channel is formed between the limiting sleeves, and the material limiting channel penetrates into the feeding channel.

[0015] Through the above technical solution, the lower roller and the upper pressure roller are arranged up and down to form a feeding channel, which ensures that the material is stably supported and guided when entering the equipment as much as possible, helps to prevent the material from being offset or twisted during the feeding process, and ensures the accuracy of subsequent processing.

[0016] Furthermore, the feeding mechanism includes a feeding rack, a pressing piece and a feeding piece. The feeding rack includes a feeding end connected to the feeding mechanism, and a discharging end connected to the rolling forming mechanism. The feeding rack is provided with a material guiding channel connecting the feeding end and the discharging end. The feeding rack is provided with an avoidance opening for the feeding piece to extend into the material guiding channel to pull the material.

[0017] Through the above technical solution, by setting the material guide channel on the feeding frame, the circumferential position of the material can be limited in the feeding direction, and the material can be effectively guided to be transported along the predetermined path, so that the material can reach the position of the next station more accurately, and the deformation and displacement problems caused by the material hanging in the air are solved as much as possible, so as to facilitate flexible material transportation, thereby ensuring the stability of the material during the transportation process as much as possible. The avoidance opening provides sufficient space for the feeding piece to extend into the material guide channel to pull the material, while avoiding collision or interference between the feeding piece and other parts, thereby improving the safety and reliability of the operation.

[0018] Furthermore, the rolling forming mechanism includes a shaping seat, an upper rolling die, a lower rolling die and a core rod, the core rod passes through the shaping seat, the upper rolling die and the lower rolling die are respectively located on the upper and lower sides of the core rod, the upper rolling die and the lower rolling die are located on both sides of the core rod and are respectively provided with cutting knives, the punching and shearing mechanism is used to drive the upper rolling die and the lower rolling die to reciprocate toward the core rod, so that the cutting knife cuts off the material located on both sides of the core rod and extrude the core rod through the upper rolling die and the lower rolling die to roll the material into a round shape.

[0019] Through the above technical solution, the cutting knife is directly installed on both sides of the upper rolling die and the lower rolling die, so that the two processes of cutting and rolling forming are integrated into one operation, reducing the material handling steps and improving production efficiency.

[0020] Furthermore, the rolling and forming mechanism also includes a second linear motor and an output mold, the output shaft of the second linear motor is transmission-connected to the mandrel, the output mold is located in front of the mandrel, and the second linear motor is used to drive the mandrel to reciprocate toward the output mold to transport the sheared and rolled material into the output mold and push it out to the flanging mold.

[0021] Through the above technical solution, the core rod directly transports the sheared and rolled material to the output mold and pushes it out to the flanging mold, avoiding the intermediate handling link and achieving a high degree of automation.

[0022] Furthermore, the punching and shearing mechanism is provided with two, and the punching and shearing mechanism includes a reduction motor, a cam, a linear track, and a slider slidably arranged in the linear track. The slider is provided with an upper follower wheel and a lower follower wheel. The cam is arranged between the upper follower wheel and the lower follower wheel and is connected to the output shaft of the reduction motor in driving connection. The upper rolling circular die and the lower rolling circular die are respectively hinged to the sliders of the two punching and shearing mechanisms.

[0023] Through the above technical solution, two independent but synchronous punching and shearing mechanisms are used to ensure that the movements of the upper rolling die and the lower rolling die are as consistent as possible, thereby ensuring the symmetry and consistency of material cutting and rolling forming as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a schematic structural diagram of the automatic rounding and flanging forming machine of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of the automatic rounding and flanging forming machine of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the feeding mechanism in the present invention from another perspective;

[0029] Figure 5 It is a structural schematic diagram of the feeding mechanism in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the feeding rack in the present invention;

[0031] Figure 7For the present invention Figure 6 A magnified view of the structure at center A;

[0032] Figure 8 is a cross-sectional view of the feeding rack in the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the feeding member in the present invention;

[0034] Fig.10 It is a partial structural schematic diagram of the feeding member in the present invention;

[0035] Fig.11 It is a structural schematic diagram of the rolling forming mechanism in the present invention;

[0036] Fig.12 It is a partial structural schematic diagram of the rolling forming mechanism in the present invention;

[0037] Fig.13 is a cross-sectional view of the rolling forming mechanism of the present invention;

[0038] Fig.14 It is a structural schematic diagram of the punching and shearing mechanism in the present invention;

[0039] Fig.15 It is a structural schematic diagram of the flanging and material changing mechanism in the present invention;

[0040] Fig.16 It is a partial structural schematic diagram of the flanging and material changing mechanism in the present invention;

[0041] Fig.17 It is a structural schematic diagram of the flanging mechanism in the present invention;

[0042] Fig.18 It is a schematic diagram of the flanging mechanism in the present invention in the automatic rounding and flanging forming machine;

[0043] In the figure, 10, feeding mechanism; 100, bracket; 101, lower roller; 102, guide roller; 103, upper pressure roller; 104, feeding channel; 105, limiting sleeve; 106, limiting channel;

[0044] 20. Feeding mechanism; 200. Feeding rack; 201. Pressing piece; 202. Feeding piece; 203. Feeding end; 204. Discharging end; 205. Material guide channel; 206. Avoidance opening; 207. Material guide piece; 208. Guide wheel; 209. Notch; 210. Mounting plate; 211. Material guide part; 212. Positioning hole; 213. Strip hole; 214. Groove; 215. Feeding driver ; 216, feeding track; 217, longitudinal slide rail; 218, transverse slide rail; 219, transverse driver; 220, longitudinal driver; 221, mounting seat; 222, clamping driver; 223, first clamping member; 224, second clamping member; 225, first connecting rod; 226, second connecting rod; 227, third connecting rod; 228, fourth connecting rod; 229, limit plate; 230, avoidance hole;

[0045] 30. Rolling forming mechanism; 300. Shaping seat; 301. Upper rolling die; 302. Lower rolling die; 303. Mandrel; 304. Upper left knife; 305. Upper right knife; 306. Lower left knife; 307. Lower right knife; 308. Second linear motor; 309. Output die; 310. Material guide trough; 311. Chip suction pipe;

[0046] 40. Punching and shearing mechanism; 400. Speed ​​reduction motor; 401. Cam; 402. Linear track; 403. Sliding block; 404. Upper follower wheel; 405. Lower follower wheel;

[0047] 50, flanging material changing mechanism; 500, reversing drive member; 501, flanging plate; 502, flanging die; 503, driving motor; 504, active transmission wheel; 505, transmission belt; 506, passive transmission wheel; 507, transmission shaft;

[0048] 60, flanging mechanism; 600, first linear motor; 601, guide column; 602, flanging die; 603, fifth connecting rod; 604, sixth connecting rod; 605, seventh connecting rod; 606, motor base; 607, connecting plate; 608, guide sleeve; 609, through hole; 610, limiting groove; 611, hinge seat; 612, first die body; 613, second die body;

[0049] 70. CNC mechanism; 71. Touch screen;

[0050] 80. Body. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein.

[0053] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the processes does not mean the order of execution. The execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0054] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0055] It should be understood that in the present invention, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0056] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0057] like Figures 1 to 18As shown, the present invention provides an automatic rounding and flanging forming machine, including a machine body 80, on which a feeding mechanism 10, a feeding mechanism 20, a rounding forming mechanism 30, a punching and shearing mechanism 40, a flanging material changing mechanism 50, a flanging mechanism 60 and a numerical control mechanism 70 are arranged. The feeding mechanism 10, the feeding mechanism 20, the rounding forming mechanism 30, the punching and shearing mechanism 40, the flanging material changing mechanism 50 and the flanging mechanism 60 are all controlled by the numerical control mechanism 70. The material enters from the feeding mechanism 10 and is fed by the feeding mechanism 10. The feeding mechanism 20 transports the material into the rolling forming mechanism 30. The flanging material changing mechanism 50 includes a reversing drive component 500, a flanging disk 501 and a plurality of flanging dies 502 arranged at different positions on the flanging disk 501. The material after shearing and rolling by the rolling forming mechanism 30 and the punching and shearing mechanism 40 is transported to the flanging die 502. The flanging mechanism 60 is used to flanging the material on the flanging die 502. The reversing drive component 500 drives the flanging disk 501 to rotate to change the position of the material.

[0058] The processes of feeding, conveying, rolling forming, punching and shearing, flanging and flanging are integrated into one device. All the processes are completed on the same device, which makes production more convenient. It can reduce the transfer time of materials to other devices and improve production efficiency. In addition, the reversing drive 500 drives the flanging disk 501 to rotate to change the position of the material. The feeding mechanism 10, the feeding mechanism 20, the rolling forming mechanism 30, the punching and shearing mechanism 40, the flanging and material changing mechanism 50 and the flanging mechanism 60 are controlled by the numerical control mechanism 70 to synchronously perform automatic feeding, feeding, shearing, rolling forming and flanging of the material, which is not easy to cause accumulation of materials, thereby further improving production efficiency.

[0059] Specifically, Figure 3 and Figure 4 As shown, the feeding mechanism 10 includes a bracket 100 and a lower roller 101, a guide roller 102 and an upper pressure roller 103 installed on the bracket 100. The lower roller 101 and the upper pressure roller 103 are arranged up and down and have a feeding channel 104 between them. The guide roller 102 and the feeding channel 104 are arranged left and right. The guide roller 102 is provided with a limit sleeve 105 arranged at a front and rear interval. The limit sleeves 105 form a limit channel 106 connected to the feeding channel 104, and the material limit channel 106 penetrates the feeding channel 104. Ensure that the material is stably supported and guided when entering the equipment as much as possible, and the material can also be flattened, which is conducive to subsequent feeding and processing, and also helps to reduce the deviation or distortion of the material during the feeding process, ensuring the accuracy of subsequent processing.

[0060] like Figures 5 to 10As shown, the feeding mechanism 20 located downstream of the feeding mechanism 20 includes a feeding rack 200, a pressing piece 201 and a feeding piece 202. The feeding rack 200 includes a feeding end 203 connected to the feeding mechanism 10, and a discharging end 204 connected to the rolling forming mechanism 30. The feeding rack 200 is provided with a material guiding channel 205 connecting the feeding end 203 and the discharging end 204. The material guiding channel 205 can limit the circumferential position of the material in the feeding direction, and effectively guide the material to be transported along a predetermined path, so that the material can reach the position of the next workstation more accurately, and solve the deformation and displacement problems caused by the suspension of the material as much as possible, especially facilitate the flexible material transportation, thereby ensuring the stability of the material during the transportation process as much as possible. In addition, the feed rack 200 is provided with an avoidance opening 206 for the feed piece 202 to extend into the material guide channel 205 to pull the material. The avoidance opening 206 provides sufficient space for the feed piece 202 to extend into the material guide channel 205 to pull the material, while avoiding collision or interference between the feed piece 202 and other parts, thereby improving the safety and reliability of operation.

[0061] Specifically, the feed rack 200 is provided with two material guide members 207 with grooves 214, and the grooves 214 of the two material guide members 207 are arranged opposite to each other to form a material guide channel 205, wherein the length of one material guide member 207 is smaller than that of the other material guide member 207 to form an avoidance opening 206, thereby providing sufficient space for the material feeder 202 to extend into and pull the material, and preventing the material feeder 202 from colliding or interfering with other parts, thereby improving the safety and reliability of the operation, and also allowing the material to always be in at least one groove 214, so that the material is always guided and limited, thereby reducing the deformation of the material and making the feeding more accurate.

[0062] In order to further make the conveying direction of the material more accurate, two guide wheels 208 are provided on the feeding rack 200 near the feeding end 203. The guide wheels 208 and the avoidance opening 206 are located on opposite sides of the material guide channel 205. The guide wheels 208 can more accurately control the position of the material to ensure that it maintains a more accurate posture when entering the material guide channel 205, reducing the displacement or distortion of the material. The guide wheels 208 can also move along the material guide channel 205 to push the material to be exposed toward the avoidance opening 206, so as to facilitate the feeding member 202 to pull the material.

[0063] For ease of understanding, the feeding direction in this application is the left and right direction in the horizontal plane, the shorter material guide member 207 is located on the rear side of the longer material guide member 207, so that the avoidance opening 206 is located on the rear side of the material guide channel 205, and the guide wheel 208 is located on the front side of the material guide channel 205, and the guide wheel 208 moves backward to push the material to be exposed toward the avoidance opening 206.

[0064] In addition, the material guide channel 205 is provided with a notch 209 on one side of the guide wheel 208, and a mounting plate 210 is provided on the feed rack 200. One end of the mounting plate 210 is rotatably connected to the feed rack 200, and the guide wheel 208 is installed on the other end of the mounting plate 210. By rotating the mounting plate 210, the guide wheel 208 can move backward to push the material.

[0065] Due to the different thicknesses and widths of different materials, the material guide 207 can move relatively to adjust the width of the material guide channel 205. Specifically, the material guide 207 can move forward and backward. The adjustable width of the material guide channel 205 enables the feeding mechanism 20 to adapt to materials of different thicknesses and widths, and can ensure as much as possible that each material can be guided and transported under better conditions, reducing position deviation and deformation problems caused by size mismatch, greatly expanding the application scope of the feeding mechanism 20, and being suitable for a wider range of production needs. There is no need to replace the material guide 207 or reset the entire feeding mechanism 20, thereby improving the flexibility and response speed of the production line.

[0066] Since some materials are made of flexible materials, they are more likely to be deformed and stuck. The material guide 207 includes two material guide parts 211 arranged opposite to each other, specifically two material guide parts 211 arranged opposite to each other up and down. The two material guide parts 211 cooperate to form a groove 214, and the two material guide parts 211 are detachably connected. When the material guide channel 205 is blocked by material, the material guide part 211 can be quickly disassembled to quickly clear the blockage, reduce downtime, and enable the production line to resume normal operation as soon as possible. In addition, during the long-term material transportation process of the material guide channel 205, burrs are likely to appear due to friction between the inner wall of the material guide channel 205 and the material, resulting in increased resistance to the material, affecting the transportation of the material. The detachable connection of the two material guide parts 211 is also convenient for cleaning and polishing the material guide channel 205 after long-term material feeding, maintaining the smoothness of the material guide channel 205, and reducing friction resistance to the material.

[0067] In this embodiment, the lower material guide parts 211 of the two material guide members 207 are integrally arranged, the lower material guide parts 211 are flat and provided with positioning holes 212, the upper material guide parts 211 of the two material guide members 207 are separately arranged and have strip holes 213, and the two material guide parts 211 are fixed by nuts after bolts pass through the strip holes 213 and the positioning holes 212. When in use, the upper material guide part 211 can be moved forward and backward to adjust the position of the bolts in the strip holes 213 to adjust the width of the material guide channel 205.

[0068] Furthermore, at least one side of the avoidance opening 206 is provided with a limit plate 229 for holding the material, the limit plate 229 is slidably connected to the avoidance opening 206, and a avoidance hole 230 for avoiding the feeding member 202 is provided on the limit plate 229. The feeding member 202 extends into the avoidance hole 230 to hold the material, and the feeding member 202 pulls the limit plate 229 to move while pulling the material from the feeding end 203 to the discharging end 204. The limit plate 229 is slidably connected to the avoidance opening 206 and moves with the feeding member 202. The limit plate 229 can perform additional circumferential position limitation on the material during the conveying process, ensuring that it maintains a correct posture during the conveying process, reducing the risk of lateral displacement or distortion.

[0069] Since the moving stability of the feeding member 202 will also affect the conveying of the material, in order to further improve the stability during the conveying process, a feeding driver 215 and a feeding track 216 extending along the feeding direction are provided on the body 80, the feeding member 202 is connected to the feeding track 216, and the feeding driver 215 is used to drive the feeding member 202 to reciprocate along the feeding track 216. The feeding track 216 provides a stable running path for the feeding member 202, reduces the problem of unstable material conveying caused by vibration or deviation, and further ensures the linearity and stability of the material during the conveying process.

[0070] It should be noted that the feeding driver 215 can be a movable screw pair driven by a driving motor 503. The driving motor 503 can provide a relatively stable power output, ensuring the consistency and repeatability of each feeding action as much as possible, and can meet the needs of mass production and precision processing.

[0071] Because different production lines of automatic rounding and flanging machines have different material delivery positions, Figure 5 As shown, in the present invention, a longitudinal slide rail 217 and a transverse slide rail 218 slidably connected to the longitudinal slide rail 217 are provided on the machine body 80, the feeder 200 is connected to the transverse slide rail 218, the transverse slide rail 218 is provided with a transverse driver 219 for driving the feeder 202 to slide transversely on the transverse slide rail 218, and the longitudinal slide rail 217 is provided with a longitudinal driver 220 for driving the transverse slide rail 218 to slide longitudinally on the longitudinal slide rail 217. The dual-axis slide rail system allows the feeder 200 to move freely in a horizontal plane, and can flexibly adjust the material conveying path according to production requirements, adapt to different production line layouts and process requirements, and make the material conveying more accurate.

[0072] It should be noted that the longitudinal driver 220 and the transverse driver 219 can be manually driven movable screw pairs, and the screws are provided with rotating handles. The rotating handles are intuitively designed and easy to use, and can achieve fine adjustments to ensure more precise positioning of the feed rack 200 in the longitudinal and transverse directions.

[0073] Among them, Fig. 9and Fig.10 As shown, the press member 201 and the feed member 202 have the same structure, and both the press member 201 and the feed member 202 include a mounting seat 221 and a clamping driver 222, a first clamping member 223 and a second clamping member 224 arranged on the mounting seat 221, and the clamping driver 222 is used to drive the first clamping member 223 and the second clamping member 224 to press or loosen the material. The clamping driver 222 can more accurately control the movement of the first clamping member 223 and the second clamping member 224, so as to ensure that the clamping force on the material is uniform and moderate, so as to avoid deformation or damage of the material due to excessive clamping force, and also prevent sliding caused by insufficient clamping force.

[0074] Specifically, the first clamping member 223 is slidably connected to the mounting seat 221, the second clamping member 224 is fixed to the mounting seat 221, and the mounting seat 221 is provided with a first connecting rod 225, a second connecting rod 226, a third connecting rod 227 and a fourth connecting rod 228, the head end of the first connecting rod 225 is hinged to the mounting seat 221, the tail end of the first connecting rod 225 and the head end of the second connecting rod 226 are hinged to the output end of the clamping driver 222, the head end of the third connecting rod 227 and the tail end of the fourth connecting rod 228 are both hinged to the tail end of the second connecting rod 226, the tail end of the third connecting rod 227 is hinged to the mounting seat 221, and the head section of the fourth connecting rod 228 is hinged to the first clamping member 223. The design of the four-bar linkage makes the movement of the first clamping member 223 more stable, reduces the vibration or shaking of the material caused by the direct force, and improves the reliability of the clamping process.

[0075] It should be noted that the first clamping member 223 is above the second clamping member 224, and the first clamping member 223 moves up and down to clamp the material. The first clamping member 223 and the second clamping member 224 can be clamping blocks, and the clamping driver 222 can be a cylinder. When the cylinder extends and retracts, it drives the position change of the first connecting rod 225, the second connecting rod 226, the third connecting rod 227 and the fourth connecting rod 228 to be transmitted to the first clamping member 223 to move up and down in the middle of the mounting seat 221, and realize the pressing or loosening working state with the second clamping member 224. The clamping surfaces of the first clamping member 223 and the second clamping member 224 can be corrugated surfaces to increase friction, better clamp the material, and prevent the material from slipping.

[0076] In order to further improve production efficiency, Figures 11 to 13As shown, the rolling forming mechanism 30 includes a shaping seat 300, an upper rolling die 301, a lower rolling die 302 and a mandrel 303. The mandrel 303 passes through the shaping seat 300. The upper rolling die 301 and the lower rolling die 302 are respectively located on the upper and lower sides of the mandrel 303. The upper rolling die 301 and the lower rolling die 302 are respectively provided with cutting knives on both sides of the mandrel 303. The punching and shearing mechanism 40 is used to drive the upper rolling die 301 and the lower rolling die 302 to reciprocate toward the mandrel 303, so that the cutting knives cut the materials located on both sides of the mandrel 303 and squeeze the mandrel 303 through the upper rolling die 301 and the lower rolling die 302 to roll the materials into a round shape. The two processes of cutting and rolling are integrated into one operation, which reduces the material processing steps and improves the production efficiency.

[0077] It should be noted that the upper rolling die 301 and the lower rolling die 302 are preset shape structures and can mesh with each other to roll the material into a round shape.

[0078] Among them, the cutting knife includes an upper left knife 304, an upper right knife 305, a lower left knife 306 and a lower right knife 307. The upper left knife 304 and the upper right knife 305 are arranged left and right, the upper left knife 304 and the lower left knife 306 are arranged up and down, and the upper right knife 305 and the lower right knife 307 are arranged up and down. The rolling forming mechanism 30 also includes a second linear motor 308 and an output mold 309. The output shaft of the second linear motor 308 is connected to the core rod 303 for transmission. The output mold 309 is arranged on the shaping seat 300 and is located in front of the core rod 303. The second linear motor 308 is used to drive the core rod 303 to reciprocate toward the output mold 309 to transport the sheared and rolled material to the output mold 309 and push it out to the flanging mold 502, avoiding the intermediate transportation link and having a high degree of automation.

[0079] The punching and shearing mechanism 40 is provided with two Fig.14 As shown, the punching and shearing mechanism 40 includes a reduction motor 400, a cam 401, a linear track 402, and a slider 403 slidably arranged in the linear track 402. The slider 403 is provided with an upper follower wheel 404 and a lower follower wheel 405. The cam 401 is arranged between the upper follower wheel 404 and the lower follower wheel 405 and is drivingly connected to the output shaft of the reduction motor 400. The upper rolling circular die 301 and the lower rolling circular die 302 are respectively hinged to the sliders 403 of the two punching and shearing mechanisms 40. Through two independent but synchronous punching and shearing mechanisms 40, the movements of the upper rolling circular die 301 and the lower rolling circular die 302 are ensured to be consistent as much as possible, thereby ensuring the symmetry and consistency of material cutting and rolling forming as much as possible.

[0080] In order to further improve the accuracy of the material input by the feeding mechanism 20 into the rolling forming mechanism 30, a material guide trough 310 is also included. After the material passes through the upper right knife 305, the upper rolling die 301, the core rod 303, and the upper left knife 304 along the material guide trough 310 and reaches the upper part of the lower left knife 306 at a distance of 4-5mm from the right edge, the upper rolling die 301, the upper left knife 304, and the upper right knife 305 simultaneously move downward to cut the material and bend the material downward onto the core rod 303 according to the size of the upper rolling die 301. Then the lower rolling die 302 moves upward to bend the material at the bottom of the core rod 303 onto the core rod 303 according to the size of the lower rolling die 302. At this time, the output die 309 of the completed rolling part remains stationary, and the second linear motor 308 drives the core rod 303 forward to push the completed rolled material into the output die 309 and push it out. After being pushed out, the second linear motor 308 drives the lower core rod 303 to return and reset, and the upper rolling mold 301 and the lower rolling mold 302 also return to the highest point and the lowest point to reset, completing a rolling forming process and waiting for the next signal.

[0081] Since the material is prone to produce debris during the cutting process, the rolling forming mechanism 30 further includes a debris suction pipe 311 , and the debris suction pipe 311 can be externally connected to a dust suction device to absorb the debris.

[0082] And, if Fig.15 and Fig.16 As shown, a plurality of flanging dies 502 are distributed on the flanging disc 501 along the circumferential direction, and the rolling forming mechanism 30 and the flanging mechanism 60 are applied to different flanging dies 502. While the rolling forming mechanism 30 conveys the rolled material to the flanging die 502, the flanging mechanism 60 flanging the material in other flanging dies 502 on the flanging disc 501. The rolled material can be directly conveyed to the flanging die 502 required for the next process, and the whole process does not require pause or waiting. The rolling forming mechanism 30 and the flanging mechanism 60 can work at the same time, one is processing new material for rolling, and the other is flanging the material that has been rolled. The parallel processing method greatly improves the production efficiency.

[0083] In order to drive the flanging disc 501 to rotate more smoothly, the reversing drive member 500 includes a driving motor 503, an active transmission wheel 504, a transmission belt 505, a passive transmission wheel 506 and a transmission shaft 507. The transmission shaft 507 is fixedly connected to the flanging disc 501, the output shaft of the driving motor 503 is fixedly connected to the active transmission wheel 504, the passive transmission wheel 506 is fixedly connected to the transmission shaft 507, and the active transmission wheel 504 and the passive transmission wheel 506 are connected by the transmission belt 505. The active transmission wheel 504 and the passive transmission wheel 506 are connected by the transmission belt 505. This flexible connection mode can absorb vibration, so that the entire transmission system runs more smoothly, thereby minimizing the situation where the material falls off the flanging die 502.

[0084] In order to make the structure of the machine body 80 more compact, Fig.17 and Fig.18 As shown, the flanging mechanism 60 includes a first linear motor 600, a guide post 601, a flanging die 602, and a connecting rod assembly. The guide post 601 is slidably mounted on the machine body 80. The extension direction of the output shaft of the first linear motor 600 is different from the sliding direction of the guide post 601. The first linear motor 600 is connected to the guide post 601 through the connecting rod assembly after reversing to drive the guide post 601 to slide. The first linear motor 600 can be installed at different positions of the machine body 80, avoiding the need for the first linear motor 600 and the guide post 601 to be arranged along the same axis in the traditional design. The non-coaxial design allows the overall structure of the flanging mechanism 60 to be more compact, reduces the length in a specific direction, and is more suitable for installation in a limited space.

[0085] Specifically, the connecting rod assembly includes a fifth connecting rod 603, a sixth connecting rod 604 and a seventh connecting rod 605. One end of the fifth connecting rod 603 is fixedly connected to the output shaft of the first linear motor 600. The sixth connecting rod 604 and the seventh connecting rod 605 are respectively located on both sides of the axis of the fifth connecting rod 603. One end of the sixth connecting rod 604 and one end of the seventh connecting rod 605 are hinged to the other end of the fifth connecting rod 603 at the same time. The other end of the sixth connecting rod 604 is hinged to the guide column 601, and the other end of the seventh connecting rod 605 is hinged to the body 80. The telescopic movement of the output shaft of the first linear motor 600 drives the sixth connecting rod 604 and the seventh connecting rod 605 to rotate through the fifth connecting rod 603, so as to drive the guide column 601 to slide. By means of hinged connection, the connecting rod structure can effectively change the direction of force, allowing the first linear motor 600 to be installed at a position not directly along the axis of the guide column 601, making the entire flanging mechanism 60 more compact, reducing the length of the flanging mechanism 60 in a specific direction, and allowing the first linear motor 600 to be flexibly arranged according to actual needs without being restricted by the movement path of the guide column 601.

[0086] In this embodiment, the axis direction of the output shaft of the first linear motor 600 is perpendicular to the axis direction of the guide column 601, which reduces the length in a specific direction. The first linear motor 600 and the connecting rod assembly are located on the same side of the machine body 80, and the first linear motor 600 and the flanging die 602 are located on different sides of the machine body 80, and will not interfere with each other.

[0087] In order to realize the installation of the first linear motor 600, a motor base 606 is also included, the motor base 606 is fixed on the machine body 80, the first linear motor 600 is installed on the motor base 606, and the motor base 606 provides a stable support for the first linear motor 600, ensuring that the first linear motor 600 will not be displaced or shaken during operation. This enhances the stability and reliability of the entire system, reduces the motion deviation caused by the instability of the first linear motor 600, and ensures the accuracy of the operation of the flanging mold 602.

[0088] In order to further make the structure more compact, the extension direction of the output shaft of the first linear motor 600 is parallel to the plane where the two guide pillars 601 are located. The parallel arrangement makes the entire flanging device flatter and more compact.

[0089] In order to improve the stability of the flanging die 602, two guide pillars 601 are provided, and two connecting plates 607 are provided between the two guide pillars 601. The two connecting plates 607 are respectively located at both ends of the guide pillars 601 and are fixedly connected to the two guide pillars 601. The flanging die 602 is installed on one of the connecting plates 607, and the other end of the sixth connecting rod 604 is hinged to the other connecting plate 607. By providing two guide pillars 601 and two connecting plates 607, the entire flanging device obtains better mechanical support, reduces the bending or deformation that may occur in a single guide pillar 601, and contributes to the stability and accuracy of the flanging die 602 in the entire working stroke.

[0090] Furthermore, the line connecting the hinge position between the other end of the sixth link 604 and the connecting plate 607 and the hinge position between the other end of the seventh link 605 and the body 80 is parallel to the axis of the guide post 601. In the sliding process of the guide post 601, the movement of the sixth link 604 and the seventh link 605 is kept as consistent as possible, and the deviation or tilting problem caused by the asynchronous movement of the sixth link 604 and the seventh link 605 is avoided as much as possible, thereby further ensuring the stability and accuracy of the flanging die 602 in the entire working stroke.

[0091] Furthermore, it includes a guide sleeve 608, which is fixed on the machine body 80, and the guide post 601 can cooperate with the guide sleeve 608, and the guide post 601 can slide along the guide sleeve 608. The guide sleeve 608 provides a more accurate guide path for the guide post 601, so that the guide post 601 can maintain a straight line motion as much as possible during the sliding process, avoiding deviation or tilt, thereby further ensuring the stability and accuracy of the flanging die 602 in the entire working stroke, and further improving the consistency and quality of each material.

[0092] It should be noted that the guide sleeve 608 is located on one side of the first linear motor 600 and has a mounting ring. A mounting hole is provided on the body 80. The diameter of the mounting ring is larger than the mounting hole. The guide sleeve 608 passes through the mounting hole and fits the body 80 through the mounting ring. The mounting ring is detachably connected to the body 80 by screws.

[0093] If the output shaft of the first linear motor 600 is over-extended, it is easy to exceed the maximum rotation angle of the sixth connecting rod 604 and the seventh connecting rod 605 and the maximum extension amount of the guide column 601, resulting in damage to the flanging mechanism 60 and affecting the flanging quality. For this reason, in this embodiment, a through hole 609 is provided on the fifth connecting rod 603 for the guide column 601 to pass through. The through hole 609 extends along the axial direction of the output shaft of the first linear motor 600, and the guide column 601 can contact the inner wall of the through hole 609 to limit the extension amount of the output shaft of the first linear motor 600. This helps to keep the position of the flanging die 602 in the working stroke as much as possible within the predetermined range, avoiding mechanical damage or operational errors caused by excessive extension of the output shaft of the first linear motor 600.

[0094] Furthermore, a limiting groove 610 is provided on the connecting plate 607 to limit the rotation angle of the sixth connecting rod 604, and the other end of the sixth connecting rod 604 is hinged in the limiting groove 610. The design of the limiting groove 610 can accurately limit the rotation angle of the sixth connecting rod 604, and limit its movement within a predetermined range, thereby effectively limiting the excessive swing of the sixth connecting rod 604, making the movement paths of the guide column 601 and the flanging die 602 more consistent in each flanging operation, and ensuring the consistency and quality of each material as much as possible.

[0095] In order to facilitate the assembly of the seventh connecting rod 605, an articulated seat 611 is also included, which is fixed on the machine body 80, and the other end of the seventh connecting rod 605 is hinged to the articulated seat 611. The articulated seat 611 provides a fixed and reliable fulcrum for the seventh connecting rod 605, ensuring the stability and reliability of the entire reversing assembly.

[0096] In order to further improve the quality of flanging, the flanging die 602 includes a first die 612 and a second die 613, the first die 612 and the second die 613 are arranged at intervals, the first die 612 is used to position and pre-flanged the product, and the second die 613 performs subsequent flanging on the plate. The product is set on the machine body 80, and the position can be changed.

[0097] The working principle of the automatic rolling and flanging machine: the material enters the guide channel 205 of the feeding mechanism 20 through the feeding mechanism 10 and passes through, then enters the guide groove 310 of the rolling and forming mechanism 30, passes through the upper right knife 305, the upper rolling die 301, the core rod 303, and the upper left knife 304, and reaches the upper part of the lower left knife 306 4-5mm away from the right edge. After the numerical control mechanism 70 sends a rolling signal, the rolling and forming mechanism 30 performs the rolling process, and then pushes the completed rolling material into the flanging die 602 in the flanging material changing mechanism 50. At the same time, the flanging mechanism 60 receives the flanging signal, and the flanging mechanism 60 completes the flanging process. After the flanging process is completed, the flanging mechanism 60 resets, the rolling and forming mechanism 30 resets, and the rolling and forming mechanism 30 resets and sends a feeding signal. The feeding mechanism 20 automatically feeds, and the flanging disk 501 automatically completes one position change, and so on.

[0098] It should be noted that the numerical control mechanism 70 is controlled and monitored by PLC, touch screen 71, relays and other electrical components through a dedicated program.

[0099] It should be noted that the material may include workpieces such as steel strips or strip-shaped composite materials.

[0100] It is understandable that in other embodiments, the flange disk can also be directly driven by a drive motor, which has a simpler structure. Of course, the drive motor can also drive the flange disk to rotate through a sprocket structure or a gear structure.

[0101] It can be understood that in other embodiments, the upper rolling circular die and the lower rolling circular die can be directly driven by a linear motor, which has a simpler structure.

[0102] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. An automatic rounding and flanging forming machine, characterized in that: The machine body is provided with a feeding mechanism, a feeding mechanism, a rolling forming mechanism, a punching and shearing mechanism, a flanging material changing mechanism, a flanging mechanism and a numerical control mechanism. The feeding mechanism, the feeding mechanism, the rolling forming mechanism, the punching and shearing mechanism, the flanging material changing mechanism and the flanging mechanism are all controlled by the numerical control mechanism. The material enters from the feeding mechanism and is transported into the rolling forming mechanism by the feeding mechanism. The flanging material changing mechanism comprises a reversing drive component, a flanging disk and a plurality of flanging dies arranged at different positions on the flanging disk. The material after being sheared and rolled by the rolling forming mechanism and the punching and shearing mechanism is transported to the flanging die. The flanging mechanism is used for flanging the material on the flanging die. The reversing drive component drives the flanging disk to rotate to change the position of the material.

2. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The plurality of flanging dies are distributed on the flanging dies along the circumferential direction, and the rolling forming mechanism and the flanging mechanism are applied to different flanging dies. While the rolling forming mechanism transports the rolled material to the flanging dies, the flanging mechanism flangings the material in other flanging dies on the flanging disk.

3. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The reversing drive component includes a driving motor, an active transmission wheel, a transmission belt, a passive transmission wheel and a transmission shaft. The transmission shaft is fixedly connected to the flange disk, the output shaft of the driving motor is fixedly connected to the active transmission wheel, the passive transmission wheel is fixedly connected to the transmission shaft, and the active transmission wheel and the passive transmission wheel are connected by a transmission belt.

4. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The flanging mechanism includes a first linear motor, a guide column, a flanging mold, and a connecting rod assembly. The guide column is slidably installed on the machine body. The extension direction of the output shaft of the first linear motor is different from the sliding direction of the guide column. The first linear motor is connected to the guide column after reversing through the connecting rod assembly to drive the guide column to slide.

5. The automatic rounding and flanging forming machine according to claim 4, characterized in that: The connecting rod assembly includes a fifth connecting rod, a sixth connecting rod and a seventh connecting rod. One end of the fifth connecting rod is fixedly connected to the output shaft of the first linear motor. The sixth connecting rod and the seventh connecting rod are respectively located on both sides of the axis of the fifth connecting rod. One end of the sixth connecting rod and one end of the seventh connecting rod are hinged to the other end of the fifth connecting rod at the same time. The other end of the sixth connecting rod is hinged to the guide column, and the other end of the seventh connecting rod is hinged to the body. The telescopic movement of the output shaft of the first linear motor drives the sixth connecting rod and the seventh connecting rod to rotate through the fifth connecting rod, so as to drive the guide column to slide.

6. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The feeding mechanism includes a lower roller, a guide roller and an upper pressure roller. The lower roller and the upper pressure roller are arranged up and down and have a feeding channel between them. The guide roller and the feeding channel are arranged left and right. The guide roller is provided with a limit sleeve arranged at a front and rear interval. A limit channel connected to the feed channel is formed between the limit sleeves, and the material limit channel penetrates into the feed channel.

7. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The feeding mechanism includes a feeding rack, a pressing piece and a feeding piece. The feeding rack includes a feeding end connected to the feeding mechanism and a discharging end connected to the rolling forming mechanism. The feeding rack is provided with a material guiding channel connecting the feeding end and the discharging end. The feeding rack is provided with an avoidance opening for the feeding piece to extend into the material guiding channel to pull the material.

8. The automatic rounding and flanging forming machine according to claim 1, characterized in that: The rolling forming mechanism includes a shaping seat, an upper rolling die, a lower rolling die and a core rod, the core rod passes through the shaping seat, the upper rolling die and the lower rolling die are respectively located on the upper and lower sides of the core rod, the upper rolling die and the lower rolling die are located on both sides of the core rod and are respectively provided with cutting knives, the punching and shearing mechanism is used to drive the upper rolling die and the lower rolling die to reciprocate toward the core rod, so that the cutting knives cut off the materials on both sides of the core rod and extrude the core rod through the upper rolling die and the lower rolling die to roll the materials into a round shape.

9. The automatic rounding and flanging forming machine according to claim 8, characterized in that: The rolling and forming mechanism also includes a second linear motor and an output mold. The output shaft of the second linear motor is transmission-connected to the mandrel. The output mold is located in front of the mandrel. The second linear motor is used to drive the mandrel to reciprocate toward the output mold to transport the sheared and rolled material into the output mold and push it out to the flanging mold.

10. The automatic rounding and flanging forming machine according to claim 8, characterized in that: The punching and shearing mechanisms are provided with two, and the punching and shearing mechanisms include a reduction motor, a cam, a linear track, and a slider slidably arranged in the linear track. The slider is provided with an upper follower wheel and a lower follower wheel. The cam is arranged between the upper follower wheel and the lower follower wheel and is drivingly connected to the output shaft of the reduction motor. The upper rolling circular die and the lower rolling circular die are respectively hinged to the sliders of the two punching and shearing mechanisms.

Citation Information

Patent Citations

  • Automatic stamping and bending forming machine

    CN117983746A

  • Automatic stamping, bending and forming machine with screw rod feeding function

    CN221773199U