A continuous metal plate punching and forming integrated device and a forming method thereof

Abstract

The application discloses a continuous metal plate punching and forming integrated equipment, and belongs to the technical field of metal plate processing. The equipment comprises a base frame, a plate lifting and bending mechanism is arranged at the left end of the base frame, a double-mode limiting mechanism is arranged at the right side of the plate lifting and bending mechanism, the double-mode limiting mechanism comprises a rotating switching assembly, a bending limiting assembly, a material moving limiting assembly and an outer limiting assembly, a follow-up material supporting mechanism is arranged on the upper side of the base frame, and the position of the bending limiting assembly and the material moving limiting assembly is changed through the rotating switching assembly. When the plate material moves on the base frame towards the plate lifting and bending mechanism, the material moving limiting assembly limits the plate material from the inner side of the plate material, and the outer limiting assembly limits the plate material from the outer side of the plate material, so that the forming precision of the plate lifting and bending mechanism is effectively improved. When bending, the bending limiting assembly simultaneously abuts against the to-be-bent part of the plate material and the inner wall of the flange on the two sides of the to-be-bent part, so that the plate material is tightly limited during the bending process.

Description

Technical Field

[0001] This invention relates to the field of metal sheet processing technology, and more specifically to a continuous metal sheet punching and forming integrated equipment. Background Technology

[0002] Intelligent control cabinets typically integrate various intelligent control systems and equipment, enabling monitoring, control, and data acquisition of the production process. Control cabinets are often made of high-quality steel plates or stainless steel, which undergo a series of steps including uncoiling, leveling, punching, flanging, and bending to form the main structure of the cabinet.

[0003] Chinese patent CN212762136U discloses a cold bending forming machine, including a frame, an uncoiler, a guiding feeding mechanism, a leveling mechanism, a forming mechanism, a hydraulic punching mechanism, and a shearing mechanism. This cold bending forming machine achieves one-time forming of the main structure of the control cabinet through the cooperation of these mechanisms. However, this cold bending forming machine still has the following problems: 1. During the process of bending the sheet metal upwards to form a right angle by lifting the plate, the position of the sheet metal is prone to shift, and the support force of the sheet metal flipping plate is insufficient, causing deformation at the bending point of the sheet metal and affecting product quality. 2. The main structure of the cabinet requires two or three bends to form. After bending, the upper part of the cabinet is suspended and lacks support. During the sheet metal transfer process, the bent cabinet will fall onto the machine equipment. This not only makes it difficult to remove the formed cabinet from the forming equipment, but also makes it easy for the cabinet to fall back onto the forming equipment, affecting the smooth progress of the forming operation.

[0004] Based on this, the present invention designs a continuous metal sheet punching and forming integrated equipment to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a continuous metal sheet punching and forming integrated equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A continuous metal sheet punching and forming integrated equipment, including a base frame; The left end of the base frame is provided with a plate lifting and bending mechanism for bending the sheet metal into shape; the right side of the plate lifting and bending mechanism is provided with a dual-mode limiting mechanism. The dual-mode limiting mechanism includes a rotary switching component, a bending limiting component, a material transfer limiting component, and an outer limiting component. The rotary switching component is mounted on the upper side of the base frame. A bending limiting component is installed on the left side of the rotary switching component to limit the flange and bending part of the sheet metal when the lifting plate bending mechanism performs bending operations. A material transfer limiting component is installed on the right side of the rotary switching component to limit the inner side and inner flange of the sheet metal when the sheet metal moves. Furthermore, outer limiting components that limit the sheet metal from the outside are symmetrically provided on the front and rear sides of the base frame. The upper side of the base frame is provided with a follow-up material support mechanism, which is used to support the sheet material after it has been bent twice and follow up with the material. The upper side of the base frame is also equipped with a cutting mechanism for separating the main structure of the bent cabinet from the sheet material.

[0007] Furthermore, the lifting and bending mechanism includes a flipping shaft, a tilting plate, a bending pressure block, a bending cylinder, and a material guiding assembly. The flipping shaft is fixedly installed at the left end of the top of the base frame, and the right end of the tilting plate is hinged to the flipping shaft via a connector. A bending pressure block for abutting against the plate is fixedly installed on the upper side of the right end of the flipping shaft. The lower end of the housing of the bending cylinder is hinged to the lower side of the left end of the base frame via a hinge, and the output end of the bending cylinder is hinged to the lower end of the tilting plate via a hinge seat. Multiple material guiding assemblies are evenly arranged on the upper part of the tilting plate along the width direction of the plate.

[0008] Furthermore, the rotary switching assembly includes a bracket, a rotating shaft, a linkage plate, and a switching cylinder. The bracket is symmetrically fixedly installed on the front and rear sides of the upper end of the base frame. The rotating shaft is rotatably connected to the bracket through a bearing. The end of the rotating shaft is fixedly connected to one end of the linkage plate, and the other end of the linkage plate is hinged to the output end of the switching cylinder. The lower end of the housing of the switching cylinder is hinged to the base frame through a hinge.

[0009] Furthermore, the bending limiting assembly includes a first fixed frame, a bending stop block, a side stop block, a fixed block, a limiting groove, and a sliding rod. The first fixed frame is located on the left side of the rotating shaft, with one end of the first fixed frame fixedly connected to the rotating shaft and the other end of the first fixed frame fixedly installed with a bending stop block. The end of the bending stop block is provided with a protrusion, which is used to press down the bending part of the sheet metal, thereby cooperating with the bending pressure block and the upper end face of the base frame to bend the sheet metal. Side stop blocks are movably provided at both ends of the bending stop block. The side stop blocks are configured as triangular blocks for fitting against the inner side of the flange of the sheet metal. Fixed blocks are symmetrically fixedly installed at both ends of the bending stop block, and limiting grooves are provided on the fixed blocks. The sliding rod is fixedly connected to the side stop blocks and limited to sliding connection with the limiting grooves. In the natural state, the side stop blocks remain inclined and located inside the flange of the sheet metal.

[0010] Furthermore, the material transfer limiting assembly includes a second fixed frame, a first limiting wheel, a second limiting wheel, a floating pressure roller, a connecting frame, a floating rod, a floating block, and a floating spring. The second fixed frame is located on the right side of the rotating shaft. One end of the second fixed frame is fixedly connected to the rotating shaft. A floating pressure roller for pressing down the plate material so that the plate material slides against the upper surface of the base frame is provided in the middle of the other end of the second fixed frame. Flanging limiting assemblies are symmetrically provided on both sides of the other end.

[0011] Furthermore, the flange limiting assembly includes a first limiting wheel, a second limiting wheel, and a connecting frame. The connecting frame is fixedly connected to the second fixed frame. The end of the connecting frame away from the second fixed frame is provided with a first limiting wheel that is rolledly connected to the upper side of the flange, and the lower end of the connecting frame is provided with a second limiting wheel that is rolledly connected to the side wall of the flange.

[0012] Furthermore, the outer limiting component includes a limiting cylinder and a third limiting wheel. The limiting cylinder is fixedly installed on the top of the base frame, and the output end of the limiting cylinder is fixedly installed with a third limiting wheel that rolls in contact with the outer side of the sheet metal.

[0013] Furthermore, the follow-up material support mechanism includes a gantry frame, a linear guide rail, a first slider, a material support roller, a second slider, a horizontal plate, and an electromagnet. The gantry frame is fixedly installed on the top of the base frame, and the linear guide rail is fixedly installed on the top of the gantry frame. The first slider is configured as a locking type slider and is fixedly installed on the left end of the linear guide rail. The material support roller is rotatably installed on the upper end of the first slider to support the sheet material after secondary bending. The second slider is limited and slidably connected to the linear guide rail, and a horizontal plate is fixedly installed on the upper end of the second slider. An electromagnet is fixedly installed on the horizontal plate.

[0014] Furthermore, the cutting mechanism includes a through slot, a lower cutter, a lower cutter holder, an upper cutter, an upper cutter holder, a crossbar, a shearing cylinder, and guide rods. The through slot is provided on the base frame. The lower cutter holder is fixedly connected to the base frame and located on the lower side of the through slot. The lower cutter is fixedly installed inside the lower cutter holder. The crossbar is fixedly connected to the base frame and located on the upper side of the through slot. The shearing cylinder is fixedly installed at the upper end of the crossbar. The output end of the shearing cylinder passes through the crossbar and is fixedly connected to the upper cutter holder. The upper cutter, which cooperates with the lower cutter, is fixedly installed inside the upper cutter holder. Guide rods are symmetrically fixedly installed on both sides of the upper end of the upper cutter holder. The guide rods are slidably connected to the crossbar for limiting.

[0015] To better achieve the objectives of this invention, the present invention also provides a forming method for a continuous metal sheet punching and forming integrated device, comprising the following steps: Step 1: After the previous process, the sheet material enters the base frame from the right end and continues to move to the left; the flipping plate remains horizontal, and the sheet material passes over the guide assembly; Step 2: The first limiting wheel presses down on the flange, the second limiting wheel supports the flange from the inside, and the third limiting wheel supports the flange from the outside. The floating pressure roller presses the sheet material onto the upper surface of the base frame, and the third limiting wheel limits the sheet material from the outside, thereby achieving multi-dimensional limiting of the sheet material during the transfer process. Step 3: When the part of the sheet material leaving the base frame reaches the set length, the switching cylinder drives the rotating shaft to rotate through the linkage plate, causing the second fixed frame to rise and the first fixed frame to fall, thereby releasing the limiting effect of the first limit wheel, the second limit wheel and the floating pressure roller on the sheet material; Step 4: During the descent of the bending stop, the side stop tilts and is not blocked by the flange. After the lower end of the side stop contacts the sheet metal, the side stop slides in the limiting groove through the sliding rod, so that the lower end face of the side stop gradually fits with the upper end face of the sheet metal. The end of the side stop near the flange gradually flips and extends into the flange until the lower end face of the bending stop is completely fitted with the upper end face of the sheet metal. At the same time, the end of the side stop also abuts against the corner of the flange of the sheet metal, so that the bending part of the sheet metal is completely limited. Step 5: The output end of the bending cylinder extends to push the flipping plate, causing the flipping plate to rotate 90 degrees around the flipping plate axis. The upper plane of the base frame, the bending pressure block, the bending stop block and the side stop block cooperate to bend the sheet material 90 degrees. Step Six: The forming structure of the sheet metal rests on the support roller and the electromagnet, and the end of the forming structure is attracted and connected by the electromagnet. Subsequently, the forming structure continues to move as the sheet metal is fed. The support roller supports the left end of the top of the forming structure to assist its movement, while the electromagnet moves synchronously with the forming structure by translating at the upper limit of the linear guide rail through the second slider, always maintaining the supporting effect on the forming structure. When the forming structure is about to be removed from the support roller, the operator controls the electromagnet to lose its magnetism and no longer attract the forming structure, completing the unloading of the sheet metal forming structure.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: 1. When the sheet moves on the base frame toward the lifting and bending mechanism, the material transfer limiting component limits the sheet from the inside and the outer limiting component limits the sheet from the outside, thereby ensuring that the sheet and its flange do not shift during the movement, effectively improving the forming accuracy of the lifting and bending mechanism. Once the sheet material on the lifting and bending mechanism reaches the set length, the positions of the bending limit component and the material transfer limit component are changed by a rotary switching component. The material transfer limit component rises and no longer limits the sheet material, while the bending limit component falls down. The bending limit component simultaneously abuts against the part of the sheet material to be bent and the inner wall of the flanges on both sides of the part to be bent, so that the sheet material is firmly limited during the bending process. This not only ensures the bending accuracy but also prevents the flanges of the sheet material from deforming. After the cabinet is bent and formed, it is cut off and separated from the sheet material to be bent by a cutting mechanism. 2. After the second bend, the top of the sheet metal will flip over and fall onto the follow-up support mechanism. Then the sheet metal continues to move to the left. The follow-up support mechanism moves synchronously with the top after the second bend to achieve the effect of supporting it. This not only prevents the sheet metal from deforming after the second bend, but also facilitates the removal of materials from the main structure of the formed cabinet. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a perspective view of the sheet metal after a single bending process according to the present invention; Figure 2 This is a front view of the sheet metal after a single bending according to the present invention; Figure 3 This is a perspective view of the invention with the sheet metal concealed. Figure 4 This is a partial three-dimensional representation of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the bending stop and side stop of the present invention when bending materials; Figure 6 This is a partial three-dimensional representation of the present invention. Figure 2 ; Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0019] The labels in the diagram represent: 1. Base frame; 2. Sheet metal; 3. Dual-mode limiting mechanism; 31. Rotary switching assembly; 311. Bracket; 312. Rotating shaft; 313. Linkage plate; 314. Switching cylinder; 32. Bending limiting assembly; 321. First fixed frame; 322. Bending stop block; 323. Side stop block; 324. Fixed block; 325. Limiting groove; 326. Slide rod; 33. Material transfer limiting assembly; 331. Second fixed frame; 332. First limiting wheel; 333. Second limiting wheel; 334. Floating pressure roller; 335. Connecting frame; 336. Floating rod; 337. Floating block; 338. Floating spring; 33 9. Support block; 34. Outer limiting assembly; 341. Limiting cylinder; 342. Third limiting wheel; 4. Lifting and bending mechanism; 41. Flipping shaft; 42. Flipping plate; 43. Bending pressure block; 44. Bending cylinder; 45. Guide roller; 46. Mounting frame; 5. Follow-up material support mechanism; 51. Gantry frame; 52. Linear guide rail; 53. First slider; 54. Support roller; 55. Second slider; 56. Horizontal plate; 57. Electromagnet; 6. Cutting mechanism; 61. Through slot; 62. Lower cutter; 63. Lower cutter holder; 64. Upper cutter; 65. Upper cutter holder; 66. Horizontal frame; 67. Shearing cylinder; 68. Guide rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0022] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A continuous metal sheet punching and forming integrated equipment, including a base frame 1; The left end of the base frame 1 is provided with a lifting and bending mechanism 4 for bending the sheet 2 into shape; the right side of the lifting and bending mechanism 4 is provided with a dual-mode limiting mechanism 3. The dual-mode limiting mechanism 3 includes a rotary switching component 31, a bending limiting component 32, a material transfer limiting component 33, and an outer limiting component 34. The rotary switching component 31 is mounted on the upper side of the base frame 1. The left side of the rotary switching component 31 is equipped with a bending limiting component 32 for limiting the flange and bending part of the sheet 2 when the lifting plate bending mechanism 4 performs bending operations. The right side of the rotary switching component 31 is equipped with a material transfer limiting component 33 for limiting the inner side and inner flange of the sheet 2 when the sheet 2 moves. Furthermore, the front and rear sides of the base frame 1 are symmetrically equipped with outer limiting components 34 that limit the sheet 2 from the outside. The upper side of the base frame 1 is provided with a follow-up material support mechanism 5, which is used to support the top of the plate 2 after it has been bent twice and move with it. The upper side of the base frame 1 is also provided with a cutting mechanism 6 for separating the main structure of the bent cabinet from the sheet material 2.

[0023] In this invention, after the sheet material 2 undergoes steps such as drilling, flanging, and bending groove processing, it enters the base frame 1 from the right end. When the sheet material 2 moves on the base frame 1 toward the lifting and bending mechanism 4, the material transfer limiting component 33 limits the sheet material 2 from the inside, and the outer limiting component 34 limits the sheet material 2 from the outside, thereby ensuring that the sheet material 2 and its flanging do not deviate during the movement, effectively improving the forming accuracy of the lifting and bending mechanism 4. When the sheet metal 2 on the lifting and bending mechanism 4 reaches the set length, the position of the bending limit component 32 and the material transfer limit component 33 is changed by the rotary switching component 31. The material transfer limit component 33 rises and no longer limits the sheet metal 2, while the bending limit component 32 falls down and simultaneously abuts against the part of the sheet metal 2 to be bent and the inner wall of the flanges on both sides of the part to be bent. Then the lifting and bending mechanism 4 lifts the sheet metal 2, so that the lifting and bending mechanism 4 and the bending limit component 32 cooperate to bend the sheet metal 2 by 90 degrees. During the bending process, the bending limit component 32 is tightly limited, which not only ensures the bending accuracy, but also prevents the flanges of the sheet metal 2 from deforming. After the cabinet is bent and formed, the cutting mechanism 6 cuts it off from the sheet metal 2 to be bent. After the second bend, the top of sheet 2 flips over and falls onto the follow-up support mechanism 5. Then, sheet 2 continues to move to the left. The follow-up support mechanism 5 moves synchronously with the top after the second bend to support it. This not only prevents the sheet 2 from deforming after the second bend, but also facilitates the unloading of the main cabinet structure after it has been formed. The lifting and bending mechanism 4 includes a flipping shaft 41, a flipping plate 42, a bending pressure block 43, a bending cylinder 44, and a material guiding assembly. The flipping shaft 41 is fixedly installed on the left end of the top of the base frame 1. The right end of the flipping plate 42 is hinged to the flipping shaft 41 through a connector. A bending pressure block 43 for abutting against the plate 2 is fixedly installed on the upper side of the right end of the flipping shaft 41. The lower end of the housing of the bending cylinder 44 is hinged to the lower side of the left end of the base frame 1 through a hinge. The output end of the bending cylinder 44 is hinged to the lower end of the flipping plate 42 through a hinge seat. Multiple material guiding assemblies are evenly arranged on the upper end of the flipping plate 42 along the width direction of the plate 2. The material guiding assembly includes a material guiding roller 45 and a mounting frame 46. The mounting frame 46 is fixedly connected to the flip plate shaft 41. Multiple material guiding rollers 45 are evenly and rotatably mounted at equal intervals along the length of the sheet material 2 on the inner side of the mounting frame 46. In this invention, the sheet metal 2 is kept horizontal by the flipping plate 42 during movement. The sheet metal 2 moves from right to left and passes over the guide roller 45. The output end of the bending cylinder 44 extends to push the flipping plate 42, so that the flipping plate 42 rotates 90 degrees around the flipping plate shaft 41 to achieve the bending and forming effect of the sheet metal 2. The bending pressure block 43 is used to cooperate with the upper plane of the base frame 1 to form a 90-degree corner for bending the sheet metal 2. During the normal material transfer process of the sheet metal 2, the sheet metal 2 moves on the guide roller 45, which reduces the friction force on the sheet metal 2 during movement and facilitates the unloading of the formed structure.

[0024] The rotary switching assembly 31 includes a bracket 311, a rotating shaft 312, a linkage plate 313, and a switching cylinder 314. The bracket 311 is symmetrically fixedly installed on the front and rear sides of the upper end of the base frame 1. The rotating shaft 312 is rotatably connected to the bracket 311 through a bearing. The end of the rotating shaft 312 is fixedly connected to one end of the linkage plate 313. The other end of the linkage plate 313 is hinged to the output end of the switching cylinder 314. The lower end of the housing of the switching cylinder 314 is hinged to the base frame 1 through a hinge. The bending limiting assembly 32 includes a first fixing frame 321, a bending stop block 322, a side stop block 323, a fixing block 324, a limiting groove 325, and a sliding rod 326. The first fixing frame 321 is located on the left side of the rotating shaft 312. One end of the first fixing frame 321 is fixedly connected to the rotating shaft 312, and the other end of the first fixing frame 321 is fixedly installed with the bending stop block 322. The end of the bending stop block 322 is provided with a protrusion, which is used to press down the bending part of the sheet 2, thereby cooperating with the bending pressure block 43 and the upper end face of the base frame 1 to bend the sheet 2. Both ends of the bending stop block 322 are movably provided with side stop blocks 323. The side stop blocks 323 are set as triangular blocks for fitting against the inner side of the flange of the sheet 2. When bending the sheet 2, the end of the triangular block presses down on the flange to prevent the flange from deforming. The bending stop 322 has fixed blocks 324 symmetrically fixed at both ends. The fixed blocks 324 have limit grooves 325. The slide rod 326 is fixedly connected to the side stop 323 and is limited and slidably connected to the limit grooves 325. In its natural state, the side stop 323 remains inclined and is located on one side of the flange of the sheet 2. The material transfer limiting assembly 33 includes a second fixed frame 331, a first limiting wheel 332, a second limiting wheel 333, a floating pressure roller 334, a connecting frame 335, a floating rod 336, a floating block 337, and a floating spring 338. The second fixed frame 331 is located on the right side of the rotating shaft 312. One end of the second fixed frame 331 is fixedly connected to the rotating shaft 312. The middle part of the other end of the second fixed frame 331 is provided with a floating pressure roller 334 for pressing down the plate 2 so that the plate 2 slides against the upper end surface of the base frame 1. Flanging limiting assemblies are symmetrically arranged on both sides of the other end. The flange limiting assembly includes a first limiting wheel 332, a second limiting wheel 333, and a connecting frame 335. The connecting frame 335 is fixedly connected to the second fixed frame 331. The end of the connecting frame 335 away from the second fixed frame 331 is provided with a first limiting wheel 332 that is rollably connected to the upper side of the flange. The lower end of the connecting frame 335 is provided with a second limiting wheel 333 that is rollably connected to the side wall of the flange. The two ends of the rotating shaft of the floating pressure roller 334 are rotatably connected to the floating block 337, and the floating rod 336 is fixedly installed on the upper end of the floating block 337; the second fixed frame 331 is fixedly installed with a support block 339 that is limited and slidably connected to the floating rod 336; a floating spring 338 is sleeved on the outside of the floating rod 336, and the two ends of the floating spring 338 are fixedly connected to the floating block 337 and the support block 339 respectively; by the floating rod 336 sliding on the support block 339, and under the extension and contraction of the floating spring 338, the floating pressure roller 334 can limit the plate 2 on the upper end face of the base frame 1, ensuring accurate transfer of the plate 2; The outer limiting component 34 includes a limiting cylinder 341 and a third limiting wheel 342. The limiting cylinder 341 is fixedly installed on the top of the base frame 1, and the output end of the limiting cylinder 341 is fixedly installed with a third limiting wheel 342 that rolls in contact with the outer side of the sheet 2. In this invention, by controlling the extension and retraction of the output end of the switching cylinder 314, the rotation of the rotating shaft 312 can be controlled under the linkage action of the linkage plate 313, thereby switching different limiting modes for the plate 2. When transferring sheet 2, the first limiting wheel 332 presses down on the flange, the second limiting wheel 333 supports the flange from the inside, the third limiting wheel 342 supports the flange from the outside, and the floating pressure roller 334 presses the sheet 2 onto the upper surface of the base frame 1, thereby achieving a multi-dimensional limiting effect on the sheet 2, ensuring the accurate transfer effect of the sheet 2, and thus guaranteeing the bending accuracy of the sheet 2; When bending sheet 2 is performed, the rotating shaft 312 rotates clockwise to lift the second fixed frame 331, releasing the limiting effect of the first limiting wheel 332, the second limiting wheel 333, and the floating pressure roller 334 on sheet 2. Meanwhile, the first fixed frame 321 falls, causing the bending stop 322 to move downwards until it presses firmly against the part of sheet 2 to be bent. During the descent of the bending stop 322, the side stop 323 tilts without being obstructed by the flange. After the lower end of the side stop 323 contacts sheet 2, the side stop 323 moves along the sliding rod 326... The limiting groove 325 slides, causing the lower end face of the side stop 323 to gradually fit into the upper end face of the sheet 2. The end of the side stop 323 near the flange gradually flips and extends into the flange until the lower end face of the bending stop 322 is completely fitted into the upper end face of the sheet 2. At the same time, the end of the side stop 323 also abuts against the corner of the flange of the sheet 2, thereby completely limiting the bending part of the sheet 2. After the flip plate 42 is lifted, the bending pressure block 43, the bending stop 322 and the side stop 323 work together to bend the sheet 2 by ninety degrees, thereby achieving precise forming of the sheet 2.

[0025] The follow-up material support mechanism 5 includes a gantry frame 51, a linear guide rail 52, a first slider 53, a material support roller 54, a second slider 55, a horizontal plate 56, and an electromagnet 57. The gantry frame 51 is fixedly installed on the top of the base frame 1, and the linear guide rail 52 is fixedly installed on the top of the gantry frame 51. The first slider 53 is a lockable slider and is fixedly installed on the left end of the linear guide rail 52. The material support roller 54 is rotatably installed on the upper end of the first slider 53 to support the sheet material 2 after secondary bending. The second slider 55 is limited and slidably connected to the linear guide rail 52. The horizontal plate 56 is fixedly installed on the upper end of the second slider 55, and the electromagnet 57 is fixedly installed on the horizontal plate 56. The electromagnet 57 is an energized electromagnet. In this invention, after the sheet metal 2 is bent twice or three times, the bent forming structure of the sheet metal 2 rests on the support roller 54 and the electromagnet 57, and the end of the forming structure is attracted and connected by the electromagnet 57. Subsequently, the forming structure continues to move as the sheet metal 2 is fed. The support roller 54 supports the left end of the top of the forming structure to assist its movement, while the electromagnet 57 moves synchronously with the forming structure by means of the second slider 55 moving at the upper limit of the linear guide rail 52, thereby always maintaining the lifting and support effect on the forming structure. When the forming structure is about to be removed from the support roller 54, the operator controls the electromagnet 57 to lose its magnetism and no longer attract the forming structure, so that the forming structure can be smoothly unloaded.

[0026] Example 2: In some embodiments, such as Figure 3 and Figure 6As shown, in a preferred embodiment of the present invention, the cutting mechanism 6 includes a through groove 61, a lower cutter 62, a lower cutter holder 63, an upper cutter 64, an upper cutter holder 65, a crossbar 66, a shearing cylinder 67, and a guide rod 68. The base frame 1 has a through groove 61. The lower cutter holder 63 is fixedly connected to the base frame 1 and located below the through groove 61. The lower cutter 62 is fixedly installed inside the lower cutter holder 63. The crossbar 66 is fixedly connected to the base frame 1 and located above the through groove 61. A shearing cylinder 67 is fixedly installed at the upper end of the crossbar 66. The output end of the shearing cylinder 67 passes through the crossbar 66 and connects to the upper cutter holder 68. The blade holder 65 is fixedly connected; an upper cutter 64 that cooperates with the lower cutter 62 is fixedly installed inside the upper blade holder 65; guide rods 68 are symmetrically fixedly installed on both sides of the upper end of the upper blade holder 65, and the guide rods 68 are slidably connected to the cross frame 66 for limiting; the length of the lower cutter 62 and the lower blade holder 63 is greater than the width of the sheet 2; after the sheet 2 is bent and formed, the shearing cylinder 67 drives the upper blade holder 65 to move vertically downward under the limiting action of the guide rods 68, and the cutting and segmenting operation of the sheet 2 is realized through the cooperation of the upper cutter 64 and the lower cutter 62, and the sheet 2 is cut in one go, with high cutting efficiency.

[0027] Example 3: In some embodiments, such as Figures 1-7 As shown, in a preferred embodiment of the present invention, a forming method of a continuous metal sheet punching and forming integrated equipment includes the following steps: Step 1: After the previous process, the sheet material 2 enters the base frame 1 from the right end and continues to move to the left; the flipping plate 42 is kept horizontal and the sheet material 2 passes over the guide roller 45; Step 2: The first limiting wheel 332 presses down on the flange, the second limiting wheel 333 supports the flange from the inside, and the third limiting wheel 342 supports the flange from the outside. The floating pressure roller 334 presses the sheet 2 onto the upper surface of the base frame 1, and the third limiting wheel 342 limits the sheet 2 from the outside, thereby achieving multi-dimensional limiting of the sheet 2 during the transfer process. Step 3: When the part of the sheet metal 2 that leaves the base frame 1 reaches the set length, the switching cylinder 314 drives the rotating shaft 312 to rotate through the linkage plate 313, so that the second fixed frame 331 rises and the first fixed frame 321 falls, thereby releasing the limiting effect of the first limiting wheel 332, the second limiting wheel 333 and the floating pressure roller 334 on the sheet metal 2. Step 4: During the descent of the bending stop 322, the side stop 323 tilts and is not blocked by the flange. After the lower end of the side stop 323 contacts the sheet 2, the side stop 323 slides in the limiting groove 325 through the slide rod 326, so that the lower end face of the side stop 323 gradually fits with the upper end face of the sheet 2, and the end of the side stop 323 near the flange gradually flips and extends into the flange until the lower end face of the bending stop 322 is completely fitted with the upper end face of the sheet 2. At the same time, the end of the side stop 323 also abuts against the corner of the flange of the sheet 2, so that the bending part of the sheet 2 is completely limited. Step 5: The output end of the bending cylinder 44 extends to push the flipping plate 42, so that the flipping plate 42 rotates upward 90 degrees around the flipping plate shaft 41. The upper plane of the base frame 1, the bending pressure block 43, the bending stop block 322 and the side stop block 323 cooperate to bend the plate 2 by 90 degrees. Step Six: The forming structure of sheet 2 rests on the support roller 54 and electromagnet 57, and the end of the forming structure is attracted and connected by the electromagnet 57. Subsequently, the forming structure continues to move as sheet 2 is fed. The support roller 54 supports the left end of the top of the forming structure to assist its movement, while the electromagnet 57 moves synchronously with the forming structure by sliding the second slider 55 on the upper limit of the linear guide rail 52, always maintaining the supporting effect on the forming structure. When the forming structure is about to be removed from the support roller 54, the operator controls the electromagnet 57 to lose its magnetism and no longer attract the forming structure, completing the unloading of the forming structure of sheet 2.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuous metal sheet punching and forming integrated equipment, comprising a base frame (1), characterized in that: The left end of the base frame (1) is provided with a lifting and bending mechanism (4) for bending the sheet (2) into shape; the right side of the lifting and bending mechanism (4) is provided with a dual-mode limiting mechanism (3). The dual-mode limiting mechanism (3) includes a rotary switching component (31), a bending limiting component (32), a material transfer limiting component (33), and an outer limiting component (34). The rotary switching component (31) is mounted on the upper side of the base frame (1). The left side of the rotary switching component (31) is equipped with a bending limiting component (32) for limiting the flange and bending part of the sheet metal (2) when the lifting plate bending mechanism (4) performs bending operations. The right side of the rotary switching component (31) is equipped with a material transfer limiting component (33) for limiting the inner side and inner flange of the sheet metal (2) when the sheet metal (2) moves. The front and rear sides of the base frame (1) are also symmetrically equipped with outer limiting components (34) that limit the sheet metal (2) from the outside. The upper side of the base frame (1) is provided with a follow-up material support mechanism (5), which is used to support the plate material (2) after it has been bent twice and follow up with the material. A cutting mechanism (6) is also provided on the upper side of the base frame (1); The lifting and bending mechanism (4) includes a flipping shaft (41), a flipping plate (42), a bending pressure block (43), a bending cylinder (44), and a material guiding assembly. The flipping shaft (41) is fixedly installed on the left end of the top of the base frame (1). The right end of the flipping plate (42) is hinged to the flipping shaft (41) through a connector. A bending pressure block (43) for abutting against the plate (2) is fixedly installed on the upper side of the right end of the flipping shaft (41). The lower end of the housing of the bending cylinder (44) is hinged to the lower side of the left end of the base frame (1) through a hinge. The output end of the bending cylinder (44) is hinged to the lower end of the flipping plate (42) through a hinge seat. Multiple material guiding assemblies are evenly arranged on the upper end of the flipping plate (42) along the width direction of the plate (2). The rotary switching assembly (31) includes a bracket (311), a rotating shaft (312), a linkage plate (313), and a switching cylinder (314). The bracket (311) is symmetrically fixed on the front and rear sides of the upper end of the base frame (1). The rotating shaft (312) is rotatably connected to the bracket (311) through a bearing. The end of the rotating shaft (312) is fixedly connected to one end of the linkage plate (313). The other end of the linkage plate (313) is hinged to the output end of the switching cylinder (314). The lower end of the housing of the switching cylinder (314) is hinged to the base frame (1) through a hinge.

2. The continuous metal sheet punching and forming integrated equipment according to claim 1, characterized in that, The bending limiting assembly (32) includes a first fixing frame (321), a bending stop (322), a side stop (323), a fixing block (324), a limiting groove (325), and a sliding rod (326). The first fixing frame (321) is located on the left side of the rotating shaft (312). One end of the first fixing frame (321) is fixedly connected to the rotating shaft (312), and the other end of the first fixing frame (321) is fixedly installed with the bending stop (322). The end of the bending stop (322) is provided with a protrusion, which is used to press down the bending part of the sheet metal (2), thereby cooperating with the bending pressure block (43). The upper end of the base frame (1) is bent against the sheet metal (2); both ends of the bending block (322) are movably provided with side blocks (323); the side blocks (323) are set as triangular blocks for fitting against the inner side of the flange of the sheet metal (2); both ends of the bending block (322) are symmetrically fixed with fixing blocks (324), and the fixing blocks (324) are provided with limiting grooves (325). The sliding rod (326) is fixedly connected to the side blocks (323) and limited sliding connection with the limiting grooves (325); in the natural state, the side blocks (323) remain inclined and are located inside the flange of the sheet metal (2).

3. The continuous metal sheet punching and forming integrated equipment according to claim 2, characterized in that, The material transfer limiting assembly (33) includes a second fixed frame (331), a floating pressure roller (334), a floating rod (336), a floating block (337), a floating spring (338), and a flange limiting assembly. The second fixed frame (331) is located on the right side of the rotating shaft (312). One end of the second fixed frame (331) is fixedly connected to the rotating shaft (312). The middle part of the other end of the second fixed frame (331) is provided with a floating pressure roller (334) for pressing down the plate (2) so that the plate (2) slides against the upper surface of the base frame (1). Flange limiting assemblies are symmetrically arranged on both sides of the other end.

4. The continuous metal sheet punching and forming integrated equipment according to claim 3, characterized in that, The flange limiting assembly includes a first limiting wheel (332), a second limiting wheel (333), and a connecting frame (335). The connecting frame (335) is fixedly connected to the second fixed frame (331). The end of the connecting frame (335) away from the second fixed frame (331) is provided with a first limiting wheel (332) that is tactilely connected to the upper side of the flange. The lower end of the connecting frame (335) is provided with a second limiting wheel (333) that is tactilely connected to the side wall of the flange.

5. The continuous metal sheet punching and forming integrated equipment according to claim 4, characterized in that, The outer limiting component (34) includes a limiting cylinder (341) and a third limiting wheel (342). The limiting cylinder (341) is fixedly installed on the top of the base frame (1), and the output end of the limiting cylinder (341) is fixedly installed with a third limiting wheel (342) that rolls in contact with the outer side of the sheet (2).

6. The continuous metal sheet punching and forming integrated equipment according to claim 5, characterized in that, The following material support mechanism (5) includes a gantry frame (51), a linear guide rail (52), a first slider (53), a material support roller (54), a second slider (55), a horizontal plate (56), and an electromagnet (57). The gantry frame (51) is fixedly installed on the top of the base frame (1), and the linear guide rail (52) is fixedly installed on the top of the gantry frame (51). The first slider (53) is configured as a lockable slider and is fixedly installed on the left end of the linear guide rail (52). The material support roller (54) is rotatably installed on the upper end of the first slider (53) to support the sheet material (2) after the second bending. The second slider (55) is limited and slidably connected to the linear guide rail (52). The upper end of the second slider (55) is fixedly installed with a horizontal plate (56), and an electromagnet (57) is fixedly installed on the horizontal plate (56).

7. The continuous metal sheet punching and forming integrated equipment according to claim 6, characterized in that, The cutting mechanism (6) includes a through slot (61), a lower cutter (62), a lower cutter holder (63), an upper cutter (64), an upper cutter holder (65), a crossbar (66), a shearing cylinder (67), and a guide rod (68). The base frame (1) has a through slot (61). The lower cutter holder (63) is fixedly connected to the base frame (1) and located on the lower side of the through slot (61). The lower cutter (62) is fixedly installed inside the lower cutter holder (63). The crossbar (66) is connected to the base frame (1). The upper part of the cross frame (66) is fixedly connected and located on the upper side of the through groove (61); the upper end of the cross frame (66) is fixedly installed with a shearing cylinder (67), and the output end of the shearing cylinder (67) passes through the cross frame (66) and is fixedly connected with the upper knife holder (65); the upper knife holder (65) is fixedly installed with an upper cutter (64) that cooperates with the lower cutter (62); guide rods (68) are symmetrically fixedly installed on both sides of the upper end of the upper knife holder (65), and the guide rods (68) are limited and slidably connected with the cross frame (66).

8. A method for forming metal sheets, utilizing the continuous metal sheet punching and forming integrated equipment as described in claim 7, characterized in that... Includes the following steps: Step 1: After the previous process, the sheet material (2) enters the base frame (1) from the right end and continues to move to the left; the flip plate (42) is kept horizontal and the sheet material (2) passes over the guide assembly; Step 2: The first limiting wheel (332) presses down on the flange, the second limiting wheel (333) supports the flange from the inside, and the third limiting wheel (342) supports the flange from the outside. The floating pressure roller (334) presses the sheet (2) onto the upper surface of the base frame (1), and the third limiting wheel (342) limits the sheet (2) from the outside, thereby achieving multi-dimensional limiting of the sheet (2) during the transfer of the sheet (2). Step 3: When the part of the sheet metal (2) that leaves the base frame (1) reaches the set length, the switching cylinder (314) drives the rotating shaft (312) to rotate through the linkage plate (313), so that the second fixed frame (331) rises and the first fixed frame (321) falls, thereby releasing the limiting effect of the first limiting wheel (332), the second limiting wheel (333) and the floating pressure roller (334) on the sheet metal (2); Step 4: During the descent of the bending block (322), the side block (323) tilts and is not blocked by the flange. After the lower end of the side block (323) contacts the sheet (2), the side block (323) slides in the limiting groove (325) through the slide rod (326), so that the lower end face of the side block (323) gradually fits with the upper end face of the sheet (2), and the end of the side block (323) near the flange gradually flips and extends into the flange until the lower end face of the bending block (322) is completely fitted with the upper end face of the sheet (2). At the same time, the end of the side block (323) also abuts against the corner of the flange of the sheet (2), so that the bending part of the sheet (2) is completely limited. Step 5: The output end of the bending cylinder (44) extends to push the flip plate (42), so that the flip plate (42) rotates upward ninety degrees around the flip plate shaft (41). The upper plane of the base frame (1), the bending pressure block (43), the bending stop block (322) and the side stop block (323) cooperate to bend the sheet material (2) by ninety degrees. Step 6: The forming structure of the sheet (2) rests on the support roller (54) and the electromagnet (57), and the end of the forming structure is attracted and connected by the electromagnet (57). Then the forming structure continues to move with the feeding of the sheet (2). The support roller (54) supports the left end of the top of the forming structure to assist its movement, while the electromagnet (57) moves synchronously with the forming structure by the upper limit translation of the second slider (55) on the linear guide rail (52), always maintaining the lifting and support effect on the forming structure. When the forming structure is about to be removed from the support roller (54), the operator controls the electromagnet (57) to lose its magnetism and no longer attract the forming structure, thus completing the unloading of the forming structure of the sheet (2).

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