Metal plate cutting device

Abstract

The invention belongs to the technical field of metal cutting, and particularly relates to a metal plate cutting device which comprises a roller conveyor body, and a plurality of rollers are arranged on the roller conveyor body. A chain wheel box is arranged on one side of the roller; a cutting mechanism is arranged above the roller conveyor body, and a limiting mechanism is arranged below the cutting mechanism. Through cooperation of a connecting shaft, a rotating rod, a sliding column, a connecting rod and a limiting seat, a roller drives the connecting shaft to rotate, the connecting shaft drives the rotating rod to rotate, the rotating rod drives the sliding column to rotate, the sliding column drives the connecting rod to swing in a reciprocating mode, and the connecting rod drives the limiting column to swing in a reciprocating mode. The limiting column extrudes the limiting base through the limiting groove to do up-down reciprocating motion, the limiting base drives the connecting plate to do up-down reciprocating motion, the connecting plate drives the lifting plate to do up-down reciprocating motion, the lifting plate drives the rubber hammer to do up-down reciprocating motion, the metal plate is hit, and the function of cleaning excess materials is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal cutting, and specifically relates to a metal sheet cutting device. Background Art

[0002] Metal furniture uses metal pipes, plates or rods as the main framework, and is equipped with furniture made of wood, various artificial boards, glass, stone slabs, etc. and iron art furniture made entirely of metal materials. During the production process of metal furniture, metal pipes, plates or rods will be made into various shapes through processing techniques such as cutting, bending, welding and painting. When cutting metal sheets, a cutting device is required.

[0003] A Chinese patent with the publication number CN108608257A discloses a metal sheet cutting device for furniture production, including a cutting table. A moving block is slidably connected to the cutting table, and a fixing mechanism is installed on the moving block. Above the cutting table, there is a first cylinder body and a slidable skateboard. A stepping motor, a liquid spraying pipe and a connecting rod are installed on the skateboard. The output end of the stepping motor is fixedly connected to a cutting tool disc. A first piston is slidably connected in the first cylinder body, and the connecting rod is fixedly connected to the first piston; a liquid storage tank is installed beside the cutting table. Both the liquid storage tank and the cylinder body are filled with cutting fluid. The first cylinder body is communicated with a liquid outlet hose, and the liquid outlet hose is connected to the liquid spraying pipe; a recovery tank is arranged below the cutting tool disc. A filter screen is fixedly connected in the recovery tank, and a sponge layer is placed on the filter screen. A return pipe is communicated between the recovery tank and the liquid storage tank. The cutting fluid on the metal sheet carries the metal waste generated during the cutting process and drips into the recovery tank from the gap at the cutting place. After being filtered by the sponge layer and the filter screen, the metal waste in the cutting fluid is intercepted, so that the cutting fluid flowing back to the liquid storage tank through the return pipe does not contain impurities, realizing the recycling of the cutting fluid.

[0004] At present, in the prior art, metal cutting debris can flow with the cutting fluid for cleaning, but the cut slots cannot flow out. Therefore, when discharging, it is still necessary to clean the remaining material of the cut slots. When in close contact with the sharp remaining material or narrow slots, it is easy to be cut or stabbed, and when clamping the remaining material and the sheet, it needs to be knocked, and the debris may fly and hurt people.

[0005] Therefore, the present invention provides a metal sheet cutting device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A metal sheet cutting device according to the present invention includes a roller conveyor body, and a plurality of rollers are provided on the roller conveyor body; a sprocket box is provided on one side of the roller; a cutting mechanism is provided above the roller conveyor body, and a limiting mechanism is provided below the cutting mechanism; a blanking mechanism is provided at one end of the roller conveyor body away from the cutting mechanism; The blanking mechanism includes a rotating plate rotatably connected to the roller conveyor body through a rotating shaft, and a torsion spring is provided between the rotating plate and the rotating shaft; an installation frame is fixedly connected to the top of the roller conveyor body, and sliding columns are fixedly connected to both ends of the installation frame. An elevating plate is slidably connected to the two sliding columns, and a third spring is sleeved outside the sliding columns. Two ends of the third spring are respectively fixedly connected to the bottom of the elevating plate and the installation frame; a plurality of rubber hammers are linearly arranged and fixedly connected to the bottom of the elevating plate; a driving mechanism is provided at one end of the elevating plate.

[0008] Preferably, the driving mechanism includes a connecting shaft fixedly connected to one end of a roller, a rotating rod is fixedly connected to the end of the connecting shaft away from the roller, a sliding column is fixedly connected to the outer wall of the rotating rod, a rectangular plate is fixedly connected to the top of the roller conveyor body, a connecting rod is rotatably connected to the side wall of the rectangular plate through a pin shaft, a sliding opening is provided at one end of the connecting rod, and the sliding column slides in the sliding opening; a limiting column is fixedly connected to the inner side wall of the other end of the connecting rod; a connecting plate is fixedly connected to the side wall of the elevating plate close to the connecting rod, a limiting seat is fixedly connected to the connecting plate, a limiting groove is provided on the limiting seat, and the limiting column is slidably matched in the limiting groove.

[0009] Preferably, two electric slide rails are symmetrically and fixedly connected to both ends of the top of the roller conveyor body, and a sliding frame is slidably connected to the two electric slide rails; a first motor is fixedly connected to the top of the sliding frame, an output shaft of the first motor is rotatably connected to the sliding frame through a bearing, and an installation plate is fixedly connected to the output shaft of the first motor; two fixing plates are fixedly connected to the bottom of the installation plate; a reciprocating lead screw is rotatably connected between the two fixing plates, and a moving seat is threadedly connected to the reciprocating lead screw; two guide rods are fixedly connected between the two fixing plates, and the moving seat is slidably connected to the two guide rods; a second motor is provided at one end of the reciprocating lead screw.

[0010] Preferably, an electric push rod is fixedly connected to the bottom of the moving seat, an output end of the electric push rod is fixedly connected to a protective cover; two slide rods are fixedly connected to the top of the protective cover; two side plates are symmetrically and fixedly connected to the side wall of the electric push rod, and the slide rods are respectively slidably connected to the side plates; the cutting mechanism is provided at the bottom of the protective cover; an electromagnetic block is attached to the inner wall of the protective cover.

[0011] Preferably, the cutting mechanism includes a first fixing frame fixedly connected to the bottom of the protective cover. A disc cutter is installed on the first fixing frame, and a motor is provided on the first fixing frame. On the other side of the protective cover, a telescopic box is fixedly connected. Two vertical rods are fixedly connected inside the telescopic box. A second fixing frame is slidably connected to the two vertical rods, and a cutting knife is installed on the second fixing frame. First springs are sleeved on the outer sides of the vertical rods, and two ends of each first spring are fixedly connected to the second fixing frame and the bottom of the telescopic box respectively. A third motor is fixedly connected to the outer wall of the telescopic box. The output shaft of the third motor is fixedly connected to a rotating shaft, and a cam block is fixedly connected to the rotating shaft. The second fixing frame is arranged at the bottom of the cam block.

[0012] Preferably, two sliding grooves are symmetrically formed at the bottom of the telescopic box. Clamping blocks are slidably connected in the sliding grooves. Two second springs are fixedly connected between each clamping block and the side wall of the sliding groove. The space between the two clamping blocks cooperates with the cutting knife.

[0013] Preferably, the limiting mechanism includes two bottom plates fixedly connected to the bottom of the roller conveyor body. A bidirectional ball screw is rotatably connected between the two bottom plates through bearings. Two moving plates are threadedly connected to the bidirectional ball screw. A plurality of limiting rods are fixedly connected to the tops of the moving plates. Two cross bars are fixedly connected between the two bottom plates. The moving plates are slidably connected to the two cross bars. A fourth motor is provided at one end of the bidirectional ball screw.

[0014] Preferably, a cross plate is fixedly connected to one end of the roller conveyor body close to the feeding mechanism. A limiting block slidably penetrates through the middle of the cross plate. A touch switch is embedded and installed on the side wall of the limiting block close to the cutting mechanism. The touch switch is electrically connected to the driving motor. A lifting mechanism is provided on the limiting block.

[0015] Preferably, the lifting mechanism includes a rack fixedly connected to the side wall of the limiting block. Two vertical plates are fixedly connected to the bottom of the cross plate. A special-shaped gear is rotatably connected between the two vertical plates through a rotating shaft. The special-shaped gear meshes with the rack. Baffles are fixedly connected to the tops of the racks. A fifth motor is provided at one end of the rotating shaft.

[0016] Preferably, an electric telescopic rod is fixedly connected to the bottom of the fixing plate close to the middle. The output end of the electric telescopic rod is rotatably connected to a positioning block through a mounting block.

[0017] The beneficial effects of the present invention are as follows: 1. A metal sheet cutting device according to the present invention, through the cooperation of a connecting shaft, a rotating rod, a sliding column, a connecting rod and a limiting seat, drives the connecting shaft to rotate through a roller, drives the rotating rod to rotate through the connecting shaft, drives the sliding column to rotate through the rotating rod, drives the connecting rod to swing reciprocally through the sliding column, drives the limiting column to swing reciprocally through the connecting rod, the limiting column squeezes the limiting seat to move up and down reciprocally through a limiting groove, drives the connecting plate to move up and down reciprocally through the limiting seat, drives the lifting plate to move up and down reciprocally through the connecting plate, drives the rubber hammer to move up and down reciprocally through the lifting plate, and strikes the metal sheet to realize the function of cleaning the surplus material.

[0018] 2. A metal sheet cutting device according to the present invention, through the cooperation of a cam block and a first spring, when using a disc cutter, the cutting knife retracts into the telescopic box, and then drives the disc cutter to rotate and cut through a driving motor; when using the cutting knife, drives the cam block to rotate by turning on a third motor, the cam block changes from one side of the short semi-axis to the side of the long semi-axis and contacts and presses the second fixing frame, the second fixing frame moves downward, the second fixing frame drives the cutting knife to move downward, the first spring is compressed, and at this time the bottom of the cutting knife is the first disc cutter, so as to realize cutting through the cutting knife and realize the function of quickly switching the cutting mode.

[0019] 3. A metal sheet cutting device according to the present invention, by setting a touch switch, during the conveying process of the metal sheet, when it moves to the position of the touch switch, transmits the signal to the computer program through the touch switch, controls the driving motor by the computer program, then stops the roller conveyor body from continuing to convey, so as to stop the conveying of the metal sheet, and then clamps the metal sheet through a limiting mechanism to facilitate accurate positioning of the metal sheet and improve the accuracy of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a schematic structural view of the sliding frame in the present invention; Figure 3 is a cross-sectional view of the telescopic box in the present invention; Figure 4 is a schematic structural view of the limiting rod in the present invention; Figure 5 is a schematic structural view of the limiting block in the present invention; Figure 6 is a schematic structural view of the special-shaped gear and the rack in the present invention; Figure 7 is a schematic structural view of the connecting rod in the present invention; Figure 8 is a schematic structural view of the mounting bracket in the present invention; In the figure: 1. Drum conveyor body; 11. Electric slide rail; 12. Sprocket box; 13. Rotating plate; 2. Sliding frame; 21. First motor; 22. Mounting plate; 221. Fixed plate; 222. Reciprocating lead screw; 223. Guide rod; 224. Moving seat; 225. Second motor; 226. Electric telescopic rod; 227. Positioning block; 23. Electric push rod; 231. Side plate; 232. Slide bar; 233. Protective cover; 24. First fixing frame; 241. Disc cutter; 25. Telescopic box; 251. Cam block; 252. Third motor; 253. Rotating shaft; 254. Second fixing frame; 255. Cutting knife; 256. Vertical rod; 257. First spring; 258. Clamping block; 259. Second spring; 3. Bottom plate; 31. Moving plate; 32. Limiting rod; 33. Cross bar; 34. Bi-directional ball screw; 35. Fourth motor; 4. Limiting block; 41. Touch switch; 42. Fifth motor; 43. Vertical plate; 44. Special-shaped gear; 45. Rack; 46. Baffle; 47. Cross plate; 5. Mounting frame; 51. Lifting plate; 52. Rubber hammer; 53. Third spring; 54. Slide column; 55. Connecting plate; 56. Limiting seat; 57. Connecting rod; 58. Limiting column; 59. Rectangular plate; 510. Sliding opening; 511. Sliding column; 512. Rotating rod; 513. Connecting shaft; 514. Limiting groove. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0023] As Figure 1 , Figure 7 and Figure 8 shown, a metal sheet cutting device according to an embodiment of the present invention includes a drum conveyor body 1 provided with a plurality of drums; a sprocket box 12 is provided on one side of the drums; a cutting mechanism is provided above the drum conveyor body 1, and a limiting mechanism is provided below the cutting mechanism; a blanking mechanism is provided at one end of the drum conveyor body 1 away from the cutting mechanism; the blanking mechanism includes a rotating plate 13 rotatably connected to the drum conveyor body 1 through a rotating shaft, and a torsion spring is provided between the rotating plate 13 and the rotating shaft; a mounting frame 5 is fixedly connected to the top of the drum conveyor body 1, two slide columns 54 are fixedly connected to both ends of the mounting frame 5, a lifting plate 51 is slidably connected to the two slide columns 54, a third spring 53 is sleeved outside the slide columns 54, and both ends of the third spring 53 are fixedly connected to the bottom of the lifting plate 51 and the mounting frame 5 respectively; a plurality of rubber hammers 52 are linearly arranged and fixedly connected to the bottom of the lifting plate 51; a driving mechanism is provided at one end of the lifting plate 51.

[0024] During the manufacturing process of furniture, metal pipes, plates or rods are made into various shapes through processing techniques such as cutting, bending, welding and painting. In the prior art, metal cutting debris can flow with the cutting fluid for cleaning, but the cut slots cannot flow out. Therefore, when discharging, it is necessary to clean the remaining slot materials cut. When in close contact with the sharp remaining materials or narrow slots, it is easy to be cut or stabbed. Moreover, when clamping the remaining materials and the plate, it is necessary to strike, and the debris may fly and hurt people. When the blanking mechanism provided by the present invention is in use, first, the metal plate is conveyed by the roller. After being conveyed to the set position, the metal plate is clamped and fixed by the limiting mechanism. Then, the cutting mechanism is driven to cut. After the cutting is completed, the fixation of the metal plate by the limiting mechanism is released. Then, it continues to be conveyed on the roller. When the metal plate is conveyed below the mounting frame 5, at this time, under the action of the driving mechanism, the lifting plate 51 drives the rubber hammer 52 to move up and down. The remaining slot materials on the metal plate are struck and dropped by the rubber hammer 52. The remaining materials fall on the rotating plate 13. Under the action of the torsion spring, the remaining materials are guided to slide off the rotating plate 13. During the striking process of the rubber hammer 52, under the action of the third spring 53, not only does the rubber hammer 52 adapt to plates of different thicknesses, but also it helps the rubber hammer 52 to vibrate up and down for striking, improving the blanking efficiency and applicability.

[0025] As Figure 7 and Figure 8 shown, the driving mechanism includes a connecting shaft 513 fixedly connected to one end of one of the rollers. The end of the connecting shaft 513 away from the roller is fixedly connected with a rotating rod 512. A sliding column 511 is fixedly connected to the outer wall of the rotating rod 512. A rectangular plate 59 is fixedly connected to the top of the roller conveyor body 1. One side wall of the rectangular plate 59 is rotatably connected with a connecting rod 57 through a pin shaft. A sliding opening 510 is opened at one end of the connecting rod 57. The sliding column 511 slides in the sliding opening 510. A limiting column 58 is fixedly connected to the inner side wall of the other end of the connecting rod 57. A connecting plate 55 is fixedly connected to the side wall of the lifting plate 51 close to the connecting rod 57. A limiting seat 56 is fixedly connected to the connecting plate 55. A limiting groove 514 is opened on the limiting seat 56. The limiting column 58 is slidably matched in the limiting groove 514.

[0026] The driving mechanism provided by the present invention is used to drive the lifting plate 51 to move up and down when in use. By driving the driving motor of the drum conveyor body 1 to rotate the drum, during the rotation of the drum, the connecting shaft 513 is driven to rotate by the drum, the rotating rod 512 is driven to rotate by the connecting shaft 513, the sliding column 511 is driven to rotate by the rotating rod 512. During the rotation of the sliding column 511, the sliding column 511 slides in the sliding port 510, so as to drive the connecting rod 57 to swing back and forth around the pin shaft through the sliding port 510. When the connecting rod 57 swings back and forth, the other end of the connecting rod 57 drives the limit post 58 to swing back and forth as well. During the swinging of the limit post 58, the limit post 58 slides in the limit groove 514, and the limit post 58 squeezes the limit seat 56 to move up and down through the limit groove 514. The connecting plate 55 is driven to move up and down by the limit seat 56, the lifting plate 51 is driven to move up and down by the connecting plate 55, and the rubber hammer 52 is driven to move up and down by the lifting plate 51 to strike the metal plate.

[0027] As Figure 2 shown, two electric slide rails 11 are symmetrically and fixedly connected to both ends of the top of the drum conveyor body 1, and a sliding frame 2 is slidably connected to the two electric slide rails 11; a first motor 21 is fixedly connected to the top of the sliding frame 2, the output shaft of the first motor 21 is rotatably connected to the sliding frame 2 through a bearing, and the output shaft of the first motor 21 is fixedly connected with a mounting plate 22; two fixing plates 221 are fixedly connected to the bottom of the mounting plate 22; a reciprocating lead screw 222 is rotatably connected between the two fixing plates 221 through a bearing, and a moving seat 224 is threadedly connected to the reciprocating lead screw 222; two guide rods 223 are fixedly connected between the two fixing plates 221, and the moving seat 224 is slidably connected to the two guide rods 223; a second motor 225 is provided at one end of the reciprocating lead screw 222.

[0028] The reciprocating lead screw 222 provided by the present invention is used to adjust the cutting diameter when in use. By starting the second motor 225, the output shaft of the second motor 225 drives the reciprocating lead screw 222 to rotate, the reciprocating lead screw 222 drives the moving seat 224 to move back and forth, and when the moving seat 224 moves to a suitable position, it is the cutting diameter. During the movement of the moving seat 224, the moving seat 224 slides on the guide rod 223, and the guide rod 223 limits the moving seat 224 in the horizontal direction; then the sliding frame 2 is driven to move by the electric slide rail 11 to facilitate adjusting the position of the sliding frame 2; when cutting a straight line, the position of the sliding frame 2 can be directly adjusted to perform the cutting. When cutting a circular opening, the first motor 21 needs to be started, the output shaft of the first motor 21 drives the mounting plate 22 to rotate, and the mounting plate 22 drives the cutting mechanism below to rotate, so as to realize the cutting of the circular opening. When cutting other shapes, only the angle of the mounting plate 22 needs to be adjusted to determine the cutting angle and direction, so as to realize the cutting of different shapes.

[0029] As Figure 2 shown, an electric push rod 23 is fixedly connected to the bottom of the moving seat 224, and an output end of the electric push rod 23 is fixedly connected to a protective cover 233; two slide rods 232 are fixedly connected to the top of the protective cover 233; two side plates 231 are symmetrically and fixedly connected to the side wall of the electric push rod 23, and the slide rods 232 are respectively slidably connected to the side plates 231; a cutting mechanism is arranged at the bottom of the protective cover 233; an electromagnetic block is attached to the inner wall of the protective cover 233.

[0030] The protective cover 233 provided by the present invention is used to prevent cutting debris from splashing during use. When cutting is required, the electric push rod 23 is turned on, and the output end of the electric push rod 23 drives the protective cover 233 to move downward. The protective cover 233 drives the cutting mechanism to move downward until the cutting mechanism moves to a suitable position, and then cutting is performed. During the cutting process, debris splashes onto the inner wall of the protective cover 233, and an electromagnetic block is attached to the inner wall of the protective cover 233. The energized electromagnetic blocks have magnetism, and the debris is iron debris, so the electromagnetic blocks can adsorb the debris to realize the function of collecting debris. When more debris is collected in the protective cover 233, the protective cover 233 needs to be moved to one side of the roller conveyor body 1, the electromagnetic block is powered off, and the debris falls for recycling.

[0031] As Figure 2 and Figure 3 shown, the cutting mechanism includes a first fixing frame 24 fixedly connected to the bottom of the protective cover 233. A disc cutter 241 is installed on the first fixing frame 24, and a motor is arranged on the first fixing frame 24; a telescopic box 25 is fixedly connected to the other side of the protective cover 233; two vertical rods 256 are fixedly connected inside the telescopic box 25. A second fixing frame 254 is slidably connected to the two vertical rods 256. A cutting knife 255 is installed on the second fixing frame 254; first springs 257 are sleeved outside the vertical rods 256, and two ends of the first springs 257 are respectively fixedly connected to the second fixing frame 254 and the bottom of the telescopic box 25; a third motor 252 is fixedly connected to the outer wall of the telescopic box 25, an output shaft of the third motor 252 is fixedly connected to a rotating shaft 253, a cam block 251 is fixedly connected to the rotating shaft 253, and the second fixing frame 254 is arranged at the bottom of the cam block 251.

[0032] When in use, the cutting mechanism provided by the present invention is used to cut metal sheets. When the disc cutter 241 needs to be used, the cutting knife 255 retracts into the telescopic box 25, and then the disc cutter 241 is driven to rotate by the driving motor for cutting. When the cutting knife 255 needs to be used, the third motor 252 is turned on. The output shaft of the third motor 252 drives the rotating shaft 253 to rotate, and the rotating shaft 253 drives the cam block 251 to rotate. During the rotation of the cam block 251, it changes from one side of the short semi-axis to the side of the long semi-axis and contacts and presses the second fixing frame 254. The second fixing frame 254 moves downward, and the second fixing frame 254 drives the cutting knife 255 to move downward. The first spring 257 is compressed. At this time, the bottom of the cutting knife 255 is the first disc cutter 241, so as to realize cutting by the cutting knife 255 and realize the function of quickly switching the cutting method.

[0033] As Figure 3 shown, two sliding grooves are symmetrically opened at the bottom of the telescopic box 25. Clamping blocks 258 are slidably connected in the sliding grooves. Two second springs 259 are fixedly connected between the clamping blocks 258 and the side walls of the sliding grooves. The space between the two clamping blocks 258 cooperates with the cutting knife 255.

[0034] When the clamping block 258 provided by the present invention is in use, after the cutting knife 255 is used and retracts, as the cutting knife 255 moves upward, the two clamping blocks 258 also move towards the middle at the same time. During the movement, the debris on the cutting knife 255 is scraped off at the same time, realizing the function of cleaning the cutting knife 255.

[0035] As Figure 1 and Figure 4 shown, the limiting mechanism includes two bottom plates 3 fixedly connected to the bottom of the roller conveyor body 1; a bidirectional ball screw 34 is rotatably connected between the two bottom plates 3 through bearings. Two moving plates 31 are threadedly connected to the bidirectional ball screw 34. A plurality of limiting rods 32 are fixedly connected to the tops of the moving plates 31; two cross bars 33 are fixedly connected between the two bottom plates 3. The moving plates 31 are slidably connected to the two cross bars 33; one end of the bidirectional ball screw 34 is provided with a fourth motor 35.

[0036] When the limiting mechanism provided by the present invention is in use, the metal sheet is moved to a suitable position by the roller conveyor body 1, and then the fourth motor 35 is turned on. The output shaft of the fourth motor 35 drives the bidirectional ball screw 34 to rotate. The bidirectional ball screw 34 drives the two moving plates 31 to move towards the metal sheet. The moving plates 31 drive the limiting rods 32 to move towards the metal sheet until the metal sheet is clamped and fixed. During the movement of the moving plates 31, the moving plates 31 slide on the cross bars 33, and the cross bars 33 limit the moving plates 31 to move in the horizontal direction.

[0037] As Figure 1 , Figure 5 shown, a cross plate 47 is fixedly connected to one end of the roller conveyor body 1 close to the blanking mechanism; a limiting block 4 is slidably penetrated through the middle of the cross plate 47, a touch switch 41 is embedded and installed on the side wall of the limiting block 4 close to the cutting mechanism, and the touch switch 41 is electrically connected to the driving motor; a lifting mechanism is arranged on the limiting block 4.

[0038] The limiting block 4 provided by the present invention is used to limit the conveying position of the metal plate during use. During the conveying process of the metal plate, when it moves to the position of the touch switch, the signal is transmitted to the computer program through the touch switch, and the driving motor is controlled by the computer program, and then the roller conveyor body 1 is stopped from continuing to convey, so as to stop the conveying of the metal plate. Then, the metal plate is clamped by the limiting mechanism to facilitate the accurate positioning of the metal plate and improve the cutting accuracy.

[0039] As Figure 5 and Figure 6 shown, the lifting mechanism includes a rack 45 fixedly connected to the side wall of the limiting block 4, two vertical plates 43 are fixedly connected to the bottom of the cross plate 47, a special-shaped gear 44 is rotatably connected between the two vertical plates 43 through a rotating shaft, and the special-shaped gear 44 meshes with the rack 45; baffles 46 are fixedly connected to the tops of the racks 45; a fifth motor 42 is arranged at one end of the rotating shaft.

[0040] When the lifting mechanism provided by the present invention is in use and needs to be lifted and limited, by turning on the fifth motor 42, the output shaft of the fifth motor 42 drives the special-shaped gear 44 to rotate. During the rotation of the special-shaped gear 44, the special-shaped gear 44 drives the rack 45 to move upward, and the rack 45 drives the limiting block 4 to move upward. After the special-shaped gear 44 rotates 240°, the rotation is stopped to realize the limitation of the metal plate; after the metal plate is cut and needs to be lowered, the fifth motor 42 is continuously driven to rotate, and the special-shaped gear 44 is driven to rotate by the fifth motor 42. When the special-shaped gear 44 rotates, the special-shaped gear 44 no longer meshes with the rack 45, and the rack 45 moves downward under the action of gravity until the baffle 46 contacts the cross plate 47. At this time, the special-shaped gear 44 has rotated 120° and meshes with the rack 45 again.

[0041] As Figure 2 shown, an electric telescopic rod 226 is fixedly connected to the bottom of the fixed plate 221 near the middle, and the output end of the electric telescopic rod 226 is rotatably connected to a positioning block 227 through a mounting block.

[0042] When the positioning block 227 provided by the present invention is in use, when cutting circular or arc-shaped openings, in order to prevent the metal sheet from shifting, the electric telescopic rod 226 is activated. The electric telescopic rod 226 drives the positioning block 227 to move. The positioning block 227 moves to closely fit the metal sheet and then stops moving, thereby providing the center of the circle for cutting and also strengthening the metal sheet to prevent it from shifting.

[0043] Working principle: First, positioning is required. The metal sheet is moved to a suitable position by the roller conveyor body 1. Then, the fourth motor 35 is activated. The output shaft of the fourth motor 35 drives the bidirectional ball screw 34 to rotate. The bidirectional ball screw 34 drives the two moving plates 31 to move towards the metal sheet. The moving plates 31 drive the limiting rods 32 to move towards the metal sheet until the metal sheet is clamped and fixed. During the movement of the moving plates 31, the moving plates 31 slide on the cross bar 33, and the cross bar 33 limits the movement of the moving plates 31 in the horizontal direction. During the conveying of the metal sheet, when it moves to the position of the touch switch, the touch switch transmits a signal to the computer program. The computer program controls the driving motor, and then the roller conveyor body 1 stops conveying, thereby stopping the conveying of the metal sheet. Then, the metal sheet is clamped by the limiting mechanism to facilitate accurate positioning of the metal sheet and improve the accuracy of cutting.

[0044] Then, cutting is carried out. By turning on the second motor 225, the output shaft of the second motor 225 drives the reciprocating lead screw 222 to rotate. The reciprocating lead screw 222 drives the moving seat 224 to move reciprocally. When the moving seat 224 moves to a suitable position, it is the cutting diameter. During the movement of the moving seat 224, the moving seat 224 slides on the guide rod 223, and the guide rod 223 limits the moving seat 224 in the horizontal direction. Then, the sliding frame 2 is driven by the electric slide rail 11 to facilitate the adjustment of the position of the sliding frame 2. When cutting a straight line, the position of the sliding frame 2 is directly adjusted to perform cutting. When cutting a circular opening, the first motor 21 needs to be turned on. The output shaft of the first motor 21 drives the mounting plate 22 to rotate, and the mounting plate 22 drives the cutting mechanism below to rotate, thereby realizing the cutting of the circular opening. When cutting other shapes, only the angle of the mounting plate 22 needs to be adjusted to determine the cutting angle and direction, realizing the cutting of different shapes. When cutting is required, the electric push rod 23 is turned on. The output end of the electric push rod 23 drives the protective cover 233 to move downward, and the protective cover 233 drives the cutting mechanism to move downward until the cutting mechanism moves to a suitable position, and then cutting is carried out. During the cutting process, debris splashes onto the inner wall of the protective cover 233. There are electromagnetic blocks attached to the inner wall of the protective cover 233. After being energized, the electromagnetic blocks have magnetism, and the debris is iron debris. Therefore, the electromagnetic blocks can adsorb the debris, realizing the function of collecting debris. When there is a lot of debris collected in the protective cover 233, the protective cover 233 needs to be moved to one side of the roller conveyor body 1, the electromagnetic blocks are powered off, and the debris falls for recycling.

[0045] When the disc cutter 241 needs to be used, the cutting knife 255 retracts into the telescopic box 25, and then the disc cutter 241 is driven by the drive motor to rotate and cut. When the cutting knife 255 needs to be used, the third motor 252 is turned on. The output shaft of the third motor 252 drives the rotating shaft 253 to rotate, and the rotating shaft 253 drives the cam block 251 to rotate. During the rotation of the cam block 251, it changes from the side of the short semi-axis to the side of the long semi-axis and contacts and presses the second fixed frame 254. The second fixed frame 254 moves downward, and the second fixed frame 254 drives the cutting knife 255 to move downward. The first spring 257 is compressed. At this time, the bottom of the cutting knife 255 is against the disc cutter 241, thereby realizing cutting with the cutting knife 255 and realizing the function of quickly switching the cutting method. After the cutting knife 255 is used and needs to be retracted, as the cutting knife 255 moves upward, the two clamping blocks 258 also move towards the middle at the same time. During the movement, the debris on the cutting knife 255 is scraped off at the same time, realizing the function of cleaning the cutting knife 255.

[0046] After the cutting is completed, the fixing of the metal sheet by the limit mechanism is released, and then the metal sheet continues to be conveyed on the roller. When the metal sheet is conveyed to the lower part of the mounting frame 5, the driving motor of the roller conveyor body 1 is started at this time to drive the roller to rotate. During the rotation of the roller, the connecting shaft 513 is driven to rotate by the roller, the rotating rod 512 is driven to rotate by the connecting shaft 513, the sliding column 511 is driven to rotate by the rotating rod 512. During the rotation of the sliding column 511, the sliding column 511 slides in the sliding port 510, so as to drive the connecting rod 57 to swing reciprocally around the pin shaft through the sliding port 510. When the connecting rod 57 swings reciprocally, the other end of the connecting rod 57 drives the limit post 58 to swing reciprocally as well. During the swinging of the limit post 58, the limit post 58 slides in the limit groove 514, and the limit post 58 squeezes the limit seat 56 to move up and down through the limit groove 514. The connecting plate 55 is driven to move up and down by the limit seat 56, the lifting plate 51 is driven to move up and down by the connecting plate 55, the rubber hammer 52 is driven to move up and down by the lifting plate 51, and the notch residue on the metal sheet is knocked off by the rubber hammer 52. The residue falls on the rotating plate 13, and under the action of the torsion spring, the residue is guided to slide off the rotating plate 13. During the knocking process of the rubber hammer 52, under the action of the third spring 53, not only can the rubber hammer 52 be applied to metal sheets of different thicknesses, but also it helps the rubber hammer 52 to vibrate up and down during knocking, improving the efficiency and applicability of blanking.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal sheet cutting device, comprising a drum conveyor body (1), on which a plurality of drums are provided; a sprocket box (12) is provided on one side of the drums; a cutting mechanism is provided above the drum conveyor body (1), and a limiting mechanism is provided below the cutting mechanism; a blanking mechanism is provided at one end of the drum conveyor body (1) away from the cutting mechanism; It is characterized in that: The blanking mechanism includes a rotating plate (13) rotatably connected to the drum conveyor body (1) through a rotating shaft, and a torsion spring is provided between the rotating plate (13) and the rotating shaft; an installation frame (5) is fixedly connected to the top of the drum conveyor body (1), and sliding columns (54) are fixedly connected to both ends of the installation frame (5). A lifting plate (51) is slidably connected to the two sliding columns (54), and a third spring (53) is sleeved outside the sliding column (54). The two ends of the third spring (53) are respectively fixedly connected to the bottom of the lifting plate (51) and the installation frame (5); a plurality of rubber hammers (52) are linearly arranged and fixedly connected to the bottom of the lifting plate (51); a driving mechanism is provided at one end of the lifting plate (51).

2. The metal sheet cutting device according to claim 1, wherein: The driving mechanism includes a connecting shaft (513) fixedly connected to one end of a drum, a rotating rod (512) is fixedly connected to the end of the connecting shaft (513) away from the drum, a sliding column (511) is fixedly connected to the outer wall of the rotating rod (512), a rectangular plate (59) is fixedly connected to the top of the drum conveyor body (1), a connecting rod (57) is rotatably connected to the side wall of the rectangular plate (59) through a pin shaft, a sliding opening (510) is provided at one end of the connecting rod (57), and the sliding column (511) slides in the sliding opening (510); a limiting column (58) is fixedly connected to the inner side wall of the other end of the connecting rod (57); a connecting plate (55) is fixedly connected to the side wall of the lifting plate (51) close to the connecting rod (57), a limiting seat (56) is fixedly connected to the connecting plate (55), a limiting groove (514) is provided on the limiting seat (56), and the limiting column (58) is slidably matched in the limiting groove (514).

3. A metal sheet cutting device according to claim 2, characterized in that: Two electric slide rails (11) are symmetrically and fixedly connected to both ends of the top of the drum conveyor body (1), and a sliding frame (2) is slidably connected to the two electric slide rails (11); a first motor (21) is fixedly connected to the top of the sliding frame (2), the output shaft of the first motor (21) is rotatably connected to the sliding frame (2) through a bearing, and the output shaft of the first motor (21) is fixedly connected to a mounting plate (22); two fixing plates (221) are fixedly connected to the bottom of the mounting plate (22); a reciprocating lead screw (222) is rotatably connected between the two fixing plates (221), and a moving seat (224) is threadedly connected to the reciprocating lead screw (222); two guide rods (223) are fixedly connected between the two fixing plates (221), and the moving seat (224) is slidably connected to the two guide rods (223); a second motor (225) is provided at one end of the reciprocating lead screw (222).

4. A metal sheet cutting device according to claim 3, characterized in that: A bottom of the movable seat (224) is fixedly connected with an electric push rod (23), and an output end of the electric push rod (23) is fixedly connected with a protective cover (233); two slide bars (232) are fixedly connected to a top of the protective cover (233); two side plates (231) are symmetrically and fixedly connected to a side wall of the electric push rod (23), and the slide bars (232) are respectively connected to the side plates (231) in a sliding manner; a cutting mechanism is arranged at a bottom of the protective cover (233); an electromagnetic block is attached to an inner wall of the protective cover (233).

5. A metal sheet cutting device according to claim 4, characterized in that: The cutting mechanism includes a first fixing frame (24) fixedly connected to a bottom of the protective cover (233), a disc cutter (241) is installed on the first fixing frame (24), and a motor is arranged on the first fixing frame (24); a telescopic box (25) is fixedly connected to the other side of the protective cover (233); two vertical rods (256) are fixedly connected in the telescopic box (25), a second fixing frame (254) is slidably connected to the two vertical rods (256), and a cutting knife (255) is installed on the second fixing frame (254); first springs (257) are sleeved on outer sides of the vertical rods (256), and two ends of each first spring (257) are respectively fixedly connected to the second fixing frame (254) and a bottom of the telescopic box (25); a third motor (252) is fixedly connected to an outer wall of the telescopic box (25), an output shaft of the third motor (252) is fixedly connected with a rotating shaft (253), a cam block (251) is fixedly connected to the rotating shaft (253), and the second fixing frame (254) is arranged at a bottom of the cam block (251).

6. A metal sheet cutting device according to claim 5, characterized in that: Two sliding grooves are symmetrically formed in a bottom of the telescopic box (25), clamping blocks (258) are respectively slidably connected in the sliding grooves, two second springs (259) are fixedly connected between each clamping block (258) and a side wall of the corresponding sliding groove, and the two clamping blocks (258) cooperate with the cutting knife (255).

7. The metal sheet cutting device according to claim 6, characterized in that: The limiting mechanism includes two bottom plates (3) fixedly connected to a bottom of the roller conveyor body (1); a bidirectional ball screw (34) is rotatably connected between the two bottom plates (3) through bearings, two moving plates (31) are threadedly connected to the bidirectional ball screw (34), and a plurality of limiting rods (32) are fixedly connected to tops of the moving plates (31); two cross bars (33) are fixedly connected between the two bottom plates (3), and the moving plates (31) are slidably connected to the two cross bars (33); a fourth motor (35) is arranged at one end of the bidirectional ball screw (34).

8. A metal sheet cutting device according to claim 7, characterized in that: A cross plate (47) is fixedly connected to one end of the roller conveyor body (1) close to the blanking mechanism; a limiting block (4) slidably penetrates through a middle of the cross plate (47), a touch switch (41) is embedded and installed on a side wall of the limiting block (4) close to the cutting mechanism, and the touch switch (41) is electrically connected to the driving motor; a lifting mechanism is arranged on the limiting block (4).

9. The metal sheet cutting device according to claim 8, characterized in that: The lifting mechanism includes a rack (45) fixedly connected to the side wall of the limit block (4). Two vertical plates (43) are fixedly connected to the bottom of the horizontal plate (47). An irregular gear (44) is rotatably connected between the two vertical plates (43) through a rotating shaft. The irregular gear (44) meshes with the rack (45). Baffles (46) are fixedly connected to the tops of the racks (45). A fifth motor (42) is provided at one end of the rotating shaft.

10. A metal sheet cutting device according to claim 9, characterized in that: An electric telescopic rod (226) is fixedly connected to the bottom of the fixing plate (221) near the middle. The output end of the electric telescopic rod (226) is rotatably connected to a positioning block (227) through a mounting block.

Images