Automatic sheet metal lifting device

Abstract

The utility model discloses an automatic sheet metal lifting device which comprises a feeding frame, a top driving box and a lifting frame, the two ends of a transverse supporting rod are both fixedly connected with longitudinal limiters, the middle of the transverse supporting rod is fixedly connected with an ejector rod, the bottom of the ejector rod is fixedly connected with a pressure sensor, and the pressure sensor is fixedly connected with the lifting frame. The ends, located on the outer sides of the two longitudinal limiting stoppers, of the transverse supporting rods are each provided with a corner raising air cylinder. According to the utility model, the two angle raising cylinders are arranged and are matched with the middle ejector rod and the pressure sensor, so that the middle edge of a plate can be pressed by the pressure sensor before feeding, two angles of the plate are sucked by the suckers of the angle raising cylinders under the control of the controller, and the two angles of the plate are warped upwards by resetting the cylinders; the adsorption state between the edges of the plates is directly destroyed, when the plates rapidly fall again, waves diffusing towards the other end can be formed, and the negative pressure adsorption state between the whole plates is completely destroyed.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, and particularly relates to an automatic blanking device for metal thin plates. Background Art

[0002] An iron sheet barrel is a common container in life, which has the advantages of high strength and good sealing performance, and can be used as the basic packaging for liquid products such as paint, coating, and engine oil. The production process of the iron sheet barrel generally includes production processes such as barrel body cutting, barrel lid stamping, composite ring stamping, rounding, spot welding, seam welding, ring ribbing, flanging, necking, pipe rolling, edge rolling, dot ladder hand, hoop body cutting, hoop ear spot welding, handle spot welding, accessory assembly, closer spot welding, and final assembly inspection.

[0003] Before the barrel body plate of the iron sheet barrel is rounded, it needs to be trimmed by a trimming machine to ensure that the height of the barrel body is neat after rounding. In the existing feeding device of the trimming machine, when feeding, the material tray is simply placed on the roller frame, and the tray is sent to the lifting frame through the roller, the material tray is lifted to the feeding position through the lifting frame, and finally feeding is carried out through the suction cup frame. However, since the existing suction cup frame can only move up and down and back and forth, although it can meet the feeding work, due to the relatively tight stacking and light self-weight of the metal thin plates, when the suction cup frame sucks up the plates, multiple layers of plates will be sucked together due to the negative pressure vacuum effect between the plates and be lifted together by the suction cup frame. The existing solution is to manually pad up one corner of the topmost plate before the suction cup frame works, so that air can enter between the plates to break the negative pressure state. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an automatic blanking device for metal thin plates, which solves the above problems.

[0005] To achieve the above object, an automatic blanking device for metal sheets is provided, including a feeding rack, a top driving box and a lifting rack. A top driving box is fixedly connected above the feeding rack. Four corners of the bottom of the top driving box are connected to a lifting rack through four chains. Above one end of the feeding rack, a rotating support rod is rotatably connected. On both sides below the top driving box, near one end of the rotating support rod, connecting plates are fixedly connected. Below the top driving box, two transverse sliding rods are fixedly connected through the connecting plates. Both ends of the two transverse sliding rods are slidably connected with transverse sliding seats. Below both transverse sliding seats, transverse limiters are fixedly connected. On both sides above the feeding rack, longitudinal sliding rods are fixedly connected. On both longitudinal sliding rods, longitudinal sliding seats are slidably connected. Inside both longitudinal sliding seats, a transverse support rod is fixedly connected. At both ends of the transverse support rod, longitudinal limiters are fixedly connected. In the middle of the transverse support rod, a top rod is fixedly connected. At the bottom of the top rod, a pressure sensor is fixedly connected. On the outer sides of the two longitudinal limiters at both ends of the transverse support rod, corner-lifting cylinders are provided respectively;

[0006] On one side below the top driving box, near one end of the rotating support rod, a feeding cylinder is rotatably connected. At the position corresponding to the feeding cylinder on the rotating support rod, a rotating crank is fixedly connected. Below the middle of the rotating support rod, three blanking cylinders are arranged at equal intervals.

[0007] According to the described automatic blanking device for metal sheets, both ends of the two transverse sliding rods are respectively fixedly connected to the corresponding connecting plates.

[0008] According to the described automatic blanking device for metal sheets, the output end of the feeding cylinder is rotatably connected to the end of the rotating crank far from the rotating support rod.

[0009] According to the described automatic blanking device for metal sheets, both of the two corner-lifting cylinders are fixed on the lower side of the transverse support rod near the rotating support rod through cylinder fixing seats.

[0010] According to the described automatic blanking device for metal sheets, all of the three blanking cylinders are fixed on the lower side of the rotating support rod near the transverse support rod through cylinder fixing seats.

[0011] According to the described automatic blanking device for metal sheets, suction cups are fixedly connected to the bottom output ends of all of the three blanking cylinders and the two corner-lifting cylinders.

[0012] According to the described automatic blanking device for metal sheets, both of the two longitudinal sliding rods respectively pass through the corresponding longitudinal sliding seats and are slidably connected with the corresponding longitudinal sliding seats. At the positions corresponding to the longitudinal sliding rods above both longitudinal sliding seats, limit knobs are provided.

[0013] The above - mentioned solution has at least one of the following beneficial effects:

[0014] 1. The utility model is provided with two corner - lifting cylinders, which cooperate with the ejector rod and the pressure sensor in the middle. Before feeding, the pressure sensor can press the middle edge of the plate, and then under the control of the controller, the suction cups of the corner - lifting cylinders suck the two corners of the plate. Then, through the reset of the cylinders, the two corners of the plate are warped upwards, directly destroying the adsorption state between the edges of the plate. When it falls quickly again, waves spreading to the other end can be formed, completely destroying the negative - pressure adsorption state between the whole plate, thus enhancing the practicability of the device.

[0015] 2. The utility model is provided with a rotating support rod and three blank - lifting cylinders, which cooperate with the rotating crank and the feeding cylinder. After the adsorption state of the plate is destroyed, the other end of the plate can be lifted by the three blank - lifting cylinders, and then the feeding cylinder drives the rotating support rod to rotate. Then, through the swinging of the three blank - lifting cylinders, the plate is fed to the feeding port of the edge - trimming machine to complete the automatic processing, thus enhancing the practicability of the device.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the utility model with reference to the drawings and embodiments;

[0018] Figure 1 It is a schematic side - view structure diagram of an automatic blank - lifting device for metal thin plates of the utility model;

[0019] Figure 2 It is a schematic front - view structure diagram of an automatic blank - lifting device for metal thin plates of the utility model;

[0020] Figure 3 It is a schematic left - hand three - dimensional structure diagram of an automatic blank - lifting device for metal thin plates of the utility model;

[0021] Figure 4 It is a schematic right - hand three - dimensional structure diagram of an automatic blank - lifting device for metal thin plates of the utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Feeding rack; 2. Top driving box; 3. Lifting rack; 4. Connecting plate; 5. Horizontal sliding rod; 6. Horizontal sliding seat; 7. Horizontal limiter; 8. Vertical sliding rod; 9. Vertical sliding seat; 10. Limiting knob; 11. Rotating support rod; 12. Feeding cylinder; 13. Rotating crank; 14. Blank - lifting cylinder; 15. Horizontal support rod; 16. Ejector rod; 17. Pressure sensor; 18. Corner - lifting cylinder; 19. Suction cup; 20. Vertical limiter. Detailed implementation manners

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0025] Referring to Figures 1-4 , the embodiment of the present utility model provides an automatic sheet metal blanking device, which includes a feeding rack 1, a top driving box 2 and a lifting rack 3. A top driving box 2 is fixedly connected above the feeding rack 1. Four chains are connected to the lifting rack 3 at the four corners of the bottom of the top driving box 2. One end of the feeding rack 1 is rotatably connected with a rotating support rod 11. Two connecting plates 4 are fixedly connected to both sides of the bottom of the top driving box 2 near one end of the rotating support rod 11. Both ends of two transverse sliding rods 5 are fixedly connected to the corresponding connecting plates 4. Two transverse sliding rods 5 are fixedly connected to the bottom of the top driving box 2 through the connecting plates 4. Both ends of the two transverse sliding rods 5 are slidably connected with transverse sliding seats 6. Transverse limiters 7 are fixedly connected to the bottoms of the two transverse sliding seats 6. Longitudinal sliding rods 8 are fixedly connected to both sides above the feeding rack 1. The two longitudinal sliding rods 8 respectively pass through the corresponding longitudinal sliding seats 9 and are slidably connected with the corresponding longitudinal sliding seats 9. Limiting knobs 10 are arranged at positions corresponding to the longitudinal sliding rods 8 above the two longitudinal sliding seats 9. A transverse support rod 15 is fixedly connected to the inner sides of the two longitudinal sliding seats 9. Longitudinal limiters 20 are fixedly connected to both ends of the transverse support rod 15. A top rod 16 is fixedly connected to the middle of the transverse support rod 15. A pressure sensor 17 is fixedly connected to the bottom of the top rod 16. Angle-lifting cylinders 18 are arranged at one end of the transverse support rod 15 outside the two longitudinal limiters 20. The two angle-lifting cylinders 18 are respectively fixed to the lower side of the transverse support rod 15 near the rotating support rod 11 through cylinder fixing seats. The two angle-lifting cylinders 18 arranged below the transverse support rod 15, in cooperation with the top rod 16 and the pressure sensor 17 in the middle, can, before feeding, use the pressure sensor 17 to press the middle position of the edge of the sheet, and then, under the control of the controller, suck the two corners of the sheet through the suction cups 19 of the angle-lifting cylinders 18, and then make the two corners of the sheet warp upward by the reset of the cylinders, directly destroying the adsorption state between the edges of the sheet. When it falls rapidly again, waves spreading to the other end can be formed, completely destroying the negative pressure adsorption state between the whole sheet.

[0026] One end of the lower side of the top drive box 2 near one end of the rotating support rod 11 is rotatably connected with a feeding air cylinder 12. A rotating crank 13 is fixedly connected to the position of the rotating support rod 11 corresponding to the feeding air cylinder 12. The output end of the feeding air cylinder 12 is rotatably connected to the end of the rotating crank 13 away from the rotating support rod 11. Three blanking air cylinders 14 are equidistantly arranged below the middle of the rotating support rod 11. Suction cups 19 are fixedly connected to the bottom output ends of the three blanking air cylinders 14 and the two corner-lifting air cylinders 18. The three blanking air cylinders 14 are all fixed to the lower side of the rotating support rod 11 near the transverse support rod 15 through air cylinder fixing seats. After the adsorption state of the plate is damaged, the other end of the plate can be lifted by the three blanking air cylinders 9, and then the rotating support rod 11 is driven to rotate by the feeding air cylinder 12, so that the three fixed on the rotating support rod 11, and then through the swinging of the three blanking air cylinders 9, the plate is fed to the feeding port of the edge trimming machine to complete the automatic processing.

[0027] Working principle: When the utility model is working, the two corner-lifting air cylinders 18 arranged below the transverse support rod 15, in cooperation with the top rod 16 and the pressure sensor 17 in the middle, can, before feeding, use the pressure sensor 17 to press the middle position of the edge of the plate, and then, under the control of the controller, suck the two corners of the plate through the suction cups 19 of the corner-lifting air cylinders 18, and then make the two corners of the plate warp upward by the reset of the air cylinders, directly damaging the adsorption state between the edges of the plate. When falling quickly again, waves spreading to the other end can be formed, completely damaging the negative pressure adsorption state between the whole plate. After the adsorption state of the plate is damaged, the other end of the plate can be lifted by the three blanking air cylinders 9 in another direction, and then the rotating support rod 11 is driven to rotate by the feeding air cylinder 12, so that the three fixed on the rotating support rod 11, and then through the swinging of the three blanking air cylinders 9, the plate is fed to the feeding port of the edge trimming machine to complete the automatic processing.

[0028] The embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings. However, the utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. An automatic blanking device for metal sheets, comprising a feeding rack (1), a top driving box (2) and a lifting rack (3), characterized in that: Above the described feeding rack (1), a top drive box (2) is fixedly connected. At the four corners of the bottom of the top drive box (2), a lifting rack (3) is connected by four chains. Above one end of the feeding rack (1), a rotating support rod (11) is rotatably connected. At both sides of the bottom of the top drive box (2) near one end of the rotating support rod (11), a connecting plate (4) is fixedly connected. Below the top drive box (2), two transverse sliding rods (5) are fixedly connected through the connecting plate (4). At both ends of the two transverse sliding rods (5), a transverse sliding seat (6) is slidably connected. Below the two transverse sliding seats (6), a transverse limiter (7) is fixedly connected. On both sides above the feeding rack (1), a longitudinal sliding rod (8) is fixedly connected. On the two longitudinal sliding rods (8), a longitudinal sliding seat (9) is slidably connected. Inside the two longitudinal sliding seats (9), a transverse support rod (15) is fixedly connected. At both ends of the transverse support rod (15), a longitudinal limiter (20) is fixedly connected. In the middle of the transverse support rod (15), a jacking rod (16) is fixedly connected. At the bottom of the jacking rod (16), a pressure sensor (17) is fixedly connected. At the outer ends of the transverse support rod (15) on both sides of the two longitudinal limiters (20), a corner-lifting cylinder (18) is provided; At one side of the bottom of the top drive box (2) near one end of the rotating support rod (11), a feeding cylinder (12) is rotatably connected. At the position corresponding to the feeding cylinder (12) on the rotating support rod (11), a rotating crank (13) is fixedly connected. Below the middle of the rotating support rod (11), three material-lifting cylinders (14) are equidistantly arranged.

2. The automatic blanking device for metal thin plates according to claim 1, characterized in that, Both ends of the two transverse sliding rods (5) are fixedly connected to the corresponding connecting plates (4).

3. The automatic blanking device for metal thin plates according to claim 1, wherein, The output end of the feeding cylinder (12) is rotatably connected to the end of the rotating crank (13) far from the rotating support rod (11).

4. An automatic blanking device for metal sheets according to claim 1, characterized in that, Both of the two corner-lifting cylinders (18) are fixed on the lower side of the transverse support rod (15) near the rotating support rod (11) through a cylinder fixing seat.

5. An automatic blanking device for metal sheets according to claim 1, characterized in that, All three of the material-lifting cylinders (14) are fixed on the lower side of the rotating support rod (11) near the transverse support rod (15) through a cylinder fixing seat.

6. The automatic blanking device for metal thin plates according to claim 1, characterized in that, At the bottom output ends of the three material-lifting cylinders (14) and the two corner-lifting cylinders (18), a suction cup (19) is fixedly connected.

7. The automatic blanking device for metal sheets according to claim 1, characterized in that, Both of the two longitudinal sliding rods (8) pass through the corresponding longitudinal sliding seats (9) and are slidably connected to the corresponding longitudinal sliding seats (9). At the positions corresponding to the longitudinal sliding rods (8) above the two longitudinal sliding seats (9), a limit knob (10) is provided.

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