Long and thin metal plate bending device

Abstract

The utility model discloses a long thin type metal plate bending device and a bending method, the bending device comprises a horizontal installation table, a front conveying mechanism, a bending mechanism, a rear conveying mechanism and a clamping mechanism, the clamping mechanism comprises a front face clamping roller set and a back face clamping roller set, the front conveying mechanism comprises a front annular conveying belt, and the back face clamping roller set comprises a back annular conveying belt. The rear conveying mechanism comprises a rear annular conveying belt, a bending station is formed between the front annular conveying belt and the rear annular conveying belt, and the bending mechanism comprises a fixing roller and a pressing plate. According to the vertical bending machine, a vertical mode is adopted, long and thin metal plates are bent in the horizontal plane, and the occupied space of equipment is effectively saved; in the bending process of the long and thin metal plate, the front conveying belt and the rear conveying belt are adopted for conveying, positioning of a bending part cannot be affected by factors such as gravity, and the control precision of the bending process of the long and thin metal plate is improved; the long and thin metal plates are stable in state and not prone to shaking and slipping in the conveying process, and the influence of the large length on the metal plate conveying process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of metal plate bending, and specifically relates to a long and thin metal plate bending device. BACKGROUND

[0002] Metal plates are easy to be formed and are widely used in various sheet metal structures. Small-area metal plates can be bent by using a common bending machine. However, long and thin metal plates are long in length, and existing bending equipment cannot fix the long and thin metal plates. The material is in a curved state during the bending process, the bending positioning is not accurate, and the surface of the metal plate is easily scratched. Therefore, it is necessary to design a special bending device according to the characteristics of long and thin metal plates. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the utility model adopts the technical scheme of a long and thin metal plate bending device, which comprises a horizontal installation table, a front conveying mechanism, a bending mechanism, a rear conveying mechanism, and a clamping mechanism. The clamping mechanism comprises a front clamping roller group and a back clamping roller group, and a channel for the metal plate to pass through is formed between the front clamping roller group and the back clamping roller group. The front clamping roller group and the back clamping roller group each comprise a plurality of clamping rollers arranged in sequence. The clamping rollers are vertically arranged. The front conveying mechanism comprises a front ring-shaped conveying belt located below the channel. The front ring-shaped conveying belt is installed on a plurality of transmission rollers arranged horizontally. The transmission rollers are driven to rotate by a driving mechanism. The rear conveying mechanism comprises a rear ring-shaped conveying belt installed on a plurality of horizontally arranged driven rollers. The front ring-shaped conveying belt and the rear ring-shaped conveying belt are arranged in sequence. A bending station is formed between the front ring-shaped conveying belt and the rear ring-shaped conveying belt. The bending mechanism comprises a fixed roller and a pressing plate. The fixed roller and the pressing plate are respectively located on the two sides of the bending station. The fixed roller is vertically arranged. The pressing plate is driven by a hydraulic cylinder to move horizontally from the back clamping roller group to the front clamping roller group.

[0004] As a preferred technical scheme of the above technical scheme, a row of uniformly spaced supporting plates are arranged on the front ring-shaped conveying belt. One end of each supporting plate is fixedly connected with a fixed clamping plate. The other end of each supporting plate is movably connected with a movable clamping plate. A positioning groove is formed between the movable clamping plate and the fixed clamping plate. The movable clamping plate is pulled by a spring to move away from the fixed clamping plate. A pulley is rotatably arranged on the outer side of the movable clamping plate. A fixed sliding groove is fixedly arranged on one side of the front ring-shaped conveying belt for the pulley to extend into.

[0005] As a preferred technical scheme of the above technical scheme, a plurality of annular chains are fixedly connected to the inner surface of the front ring-shaped conveying belt. A plurality of gears are fixedly connected to the transmission rollers. The gears are respectively engaged with the annular chains. The driving mechanism comprises a servo motor. One of the transmission rollers is driven to rotate by the servo motor.

[0006] As the preferred technical scheme, the clamping mechanism comprises a fixed frame fixedly connected to the horizontal mounting table, the clamping rollers in the back clamping roller group are rotatably mounted on the fixed frame, the clamping mechanism further comprises a plurality of movable frames arranged in sequence, the clamping rollers in the front clamping roller group are rotatably mounted on the movable frames, the upper end and the lower end of each movable frame are respectively provided with a plurality of sliding sleeves, a sliding rod is respectively inserted into each sliding sleeve, a plurality of active holes are formed in the fixed frame and respectively allow the sliding rods to pass through, one end of each sliding rod is fixedly connected to a limiting plate, the other end of each sliding rod passes through the sliding sleeves and the active holes in sequence and is threadedly connected to an adjusting nut, a spring is sleeved on each sliding rod and is clamped between the fixed frame and the corresponding movable frame.

[0007] As the preferred technical scheme, the clamping mechanism comprises a fixed frame fixedly connected to the horizontal mounting table, the clamping rollers in the back clamping roller group are rotatably mounted on the fixed frame, the clamping mechanism further comprises a plurality of movable frames arranged in sequence, the clamping rollers in the front clamping roller group are rotatably mounted on the movable frames, the upper end and the lower end of each movable frame are respectively provided with a plurality of sliding sleeves, a sliding rod is respectively inserted into each sliding sleeve, a plurality of active holes are formed in the fixed frame and respectively allow the sliding rods to pass through, one end of each sliding rod is fixedly connected to a limiting plate, the other end of each sliding rod passes through the sliding sleeves and the active holes in sequence and is threadedly connected to an adjusting nut, a spring is sleeved on each sliding rod and is clamped between the fixed frame and the corresponding movable frame.

[0008] As the preferred technical scheme, the clamping mechanism comprises a fixed frame fixedly connected to the horizontal mounting table, the clamping rollers in the back clamping roller group are rotatably mounted on the fixed frame, the clamping mechanism further comprises a plurality of movable frames arranged in sequence, the clamping rollers in the front clamping roller group are rotatably mounted on the movable frames, the upper end and the lower end of each movable frame are respectively provided with a plurality of sliding sleeves, a sliding rod is respectively inserted into each sliding sleeve, a plurality of active holes are formed in the fixed frame and respectively allow the sliding rods to pass through, one end of each sliding rod is fixedly connected to a limiting plate, the other end of each sliding rod passes through the sliding sleeves and the active holes in sequence and is threadedly connected to an adjusting nut, a spring is sleeved on each sliding rod and is clamped between the fixed frame and the corresponding movable frame.

[0009] As the preferred technical scheme, the clamping mechanism comprises a fixed frame fixedly connected to the horizontal mounting table, the clamping rollers in the back clamping roller group are rotatably mounted on the fixed frame, the clamping mechanism further comprises a plurality of movable frames arranged in sequence, the clamping rollers in the front clamping roller group are rotatably mounted on the movable frames, the upper end and the lower end of each movable frame are respectively provided with a plurality of sliding sleeves, a sliding rod is respectively inserted into each sliding sleeve, a plurality of active holes are formed in the fixed frame and respectively allow the sliding rods to pass through, one end of each sliding rod is fixedly connected to a limiting plate, the other end of each sliding rod passes through the sliding sleeves and the active holes in sequence and is threadedly connected to an adjusting nut, a spring is sleeved on each sliding rod and is clamped between the fixed frame and the corresponding movable frame.

[0010] The utility model discloses the beneficial effect is:

[0011] 1, the utility model discloses the adoption of vertical mode, forms the bending of long thin type metal sheet in horizontal plane, effectively saves the equipment occupied space, need not increase the equipment height on height to adapt the bending need of long thin type metal sheet greatly,

[0012] 2, long thin type metal sheet adopts the mode of front and rear conveyer belts and is transported in the bending process, will not due to the positioning of gravity and other factors influence bending part, improve the control precision of long thin type metal sheet bending process,

[0013] 3, the state of long thin type metal sheet's conveying process is stable, and it is not easy to sway and slip, reduces the influence of large length to metal sheet conveying process. ACCURACY

[0014] Figure 1 It is the structure schematic diagram of the utility model,

[0015] Figure 2is a cross-sectional structure schematic view of the front annular conveyor belt;

[0016] Figure 3 is a cross-sectional structure schematic view of the rear annular conveyor belt. DETAILED DESCRIPTION

[0017] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0018] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] As Figures 1-2As shown, long thin metal plate bending device, including horizontal installation platform 1, front conveying mechanism, bending mechanism, rear conveying mechanism, clamping mechanism, the clamping mechanism includes the front clamping roller group 3 and the back clamping roller group 4, the front clamping roller group 3 and the back clamping roller group 4 form the passage 2 for the metal plate to pass between, the front clamping roller group 3 and the back clamping roller group 4 are respectively formed by a plurality of clamping rollers 5 arranged in sequence, the clamping roller 5 is vertically arranged, the front conveying mechanism includes the front ring conveyor belt 6 located below the passage 2, the front ring conveyor belt 6 is installed on a plurality of transmission rollers 7, the transmission rollers 7 are horizontally arranged, the transmission rollers 7 are driven to rotate by the driving mechanism, the rear conveying mechanism includes the rear ring conveyor belt 8, the rear ring conveyor belt 8 is installed on a plurality of horizontally arranged driven rollers 9, the front ring conveyor belt 6 and the rear ring conveyor belt 8 are sequentially arranged, and the front ring conveyor belt 6 and the rear ring conveyor belt 8 form the bending station 10 between, the bending mechanism includes the fixed roller 11 and the pressing plate 12, the fixed roller 11 and the pressing plate 12 are respectively located on both sides of the bending station 10, the fixed roller 11 is vertically arranged, and the pressing plate 12 is driven by the hydraulic cylinder 13 to move horizontally from the back clamping roller group 4 to the front clamping roller group 3. The long and thin metal plate is clamped between the front clamping roller group 3 and the back clamping roller group 4, kept in a vertical state and bent, and the bending part formed after bending is bent in the plane. The rear ring conveyor belt 8 can support the bending part, the positioning of the long and thin metal plate is not affected during the bending process, and the equipment space is saved.

[0021] Further, the front ring conveyor belt 6 is provided with a row of uniformly spaced supporting plates 15, one end of the supporting plate 15 is fixedly connected with a fixed clamping plate 16, the other end is movably provided with a movable clamping plate 17, a positioning groove 18 is formed between the movable clamping plate 17 and the fixed clamping plate 16, the movable clamping plate 17 is pulled by the spring 19 to move away from the fixed clamping plate 16, the outer side of the movable clamping plate 17 is rotatably provided with a pulley 20, and one side of the front ring conveyor belt 6 is fixedly provided with a fixed sliding groove 21 for the pulley 20 to extend into. With the rotation of the front ring conveyor belt 6, when the supporting plate 15 moves away from the starting point of the fixed sliding groove 21, the pulley 20 enters the fixed sliding groove 21, the pulley 20 drives the movable clamping plate 17 to move towards the fixed clamping plate 16, so that the positioning groove 18 clamps the lower edge of the long and thin metal plate, and the long and thin metal plate can move synchronously with the front ring conveyor belt 6, improving the moving control precision of the long and thin metal plate. After the pulley 20 moves out of the fixed sliding groove 21, under the action of the spring 19, the positioning groove 18 expands in width, and after circular movement, it returns to the starting point of the fixed sliding groove 21.

[0022] Further, the inner surface of the front annular conveyor belt 6 is fixedly connected with a plurality of annular chains 22, a plurality of gears 23 are fixedly connected on the transmission rollers 7, the gears 23 are respectively engaged with the annular chains 22, the drive mechanism comprises a servo motor, and one of the transmission rollers 7 is driven to rotate by the servo motor. The gears 23 are respectively engaged with the annular chains 22, so that the movement of the front annular conveyor belt 6 is more accurate and cannot slip, and the bending control is more accurate.

[0023] Further, the clamping mechanism comprises a fixed frame 24 fixedly connected on the horizontal installation table 1, the clamping rollers 5 in the back clamping roller group 4 are respectively rotatably installed on the fixed frame 24, and the clamping mechanism further comprises a plurality of movable frames 25 arranged in sequence, the clamping rollers 5 in the front clamping roller group 3 are respectively rotatably installed on the movable frames 25, a plurality of sliding sleeves are respectively installed at the upper end and the lower end of the movable frame 25, a sliding rod 26 is respectively inserted into the sliding sleeves, a plurality of movable holes are arranged on the fixed frame 24 and respectively used for allowing the sliding rods 26 to movably pass through, a limiting plate 27 is fixedly connected to one end of the sliding rod 26, and an adjusting nut 28 is threadedly connected to the other end of the sliding rod 26 after sequentially passing through the sliding sleeve and the movable hole. The sliding rod 26 is sleeved with a spring 19, and the spring 19 is clamped between the fixed frame 24 and the corresponding movable frame 25. The movable frame 25 can be adjusted to obtain the channel 2 that is wide at the beginning and narrow at the end, thereby facilitating the use of metal plates of different widths.

[0024] Further, the fixed roller 11 is rotatably installed on an adjusting frame 30, adjusting screws 31 are respectively fixedly connected to the upper end and the lower end of the adjusting frame 30, a plurality of movable holes are arranged on the fixed frame 24 and respectively used for allowing the adjusting screws 31 to movably pass through, one end of the adjusting screw 31 is fixedly connected to the adjusting frame 30, the other end of the adjusting screw 31 passes through the movable hole, the adjusting screw 31 is threadedly connected with a front nut 32 and a rear nut 33, and the fixed frame 24 is clamped between the front nut 32 and the rear nut 33. By loosening the front nut 32 and the rear nut 33, the position of the fixed frame 24 can be changed, so that the position of the fixed roller 11 is adjusted, the position of the support point in the bending process is changed, and the bending needs of metal plates of different thicknesses and long and thin types are adapted. The fixed roller 11 can also be replaced by a fixed column with a right angle or other angles, and the fixed column can be fixedly installed on the adjusting frame 30. The fixed column cooperates with the pressing plate 12 to obtain different bending effects.

[0025] Further, one end of the driven roller 9 is rotatably connected with a sleeve 34, one end of the sleeve 34 is hinged to the fixed frame 24, the sleeve 34 is connected with a tension spring 35, one end of the tension spring 35 is obliquely upward and is fixedly connected with the fixed frame 24, a plurality of gears 23 are mounted on the driven roller 9, and the inner surface of the rear annular conveying belt 8 is fixed with a plurality of chains 36 which are respectively in gear engagement with the gears 23. The tension spring 35 makes the driven roller 9 keep in a horizontal state or an obliquely upward state, so that the rear annular conveying belt 8 can form a supporting action on the long and thin metal plate when the long and thin metal plate moves. When the pressing plate 12 starts to bend the long and thin metal plate, the rear annular conveying belt 8 is stressed, the driven roller 9 is inclined, the bent section of the long and thin metal plate can smoothly separate from the rear annular conveying belt 8, and the rear annular conveying belt 8 is reset. After the pressing plate 12 retreats, the front annular conveying belt 6 starts, and the part of the long and thin metal plate which is not bent is moved and is caught by the rear annular conveying belt 8.

[0026] Further, one side of the horizontal installation table 1 is provided with a supporting table 36, and the middle part of the supporting table 36 is close to the bending station 10. The supporting table 36 is used for supporting the bent metal plate.

[0027] The long and thin metal plate bending method uses the long and thin metal plate bending device, and comprises the following steps: standing up the long and thin metal plate, inserting the long and thin metal plate between the front clamping roller group 3 and the back clamping roller group 4, and placing the lower edge of the long and thin metal plate on the front annular conveying belt 6; driving the long and thin metal plate to move a certain distance by the front annular conveying belt 6, so that the long and thin metal plate continues to extend a certain length after passing through the bending station 10 and extends into the rear annular conveying belt 8; driving the pressing plate 12 to move by the hydraulic cylinder 13, so that the pressing plate 12 abuts against the long and thin metal plate and bends the long and thin metal plate by a certain angle; resetting the pressing plate 12, starting the front annular conveying belt 6, and making the long and thin metal plate continue to move a certain distance; driving the pressing plate 12 to move by the hydraulic cylinder 13, and forming a second bending at another position of the long and thin metal plate; controlling the bending angle by controlling the displacement of the pressing plate 12; and repeating the above steps until the long and thin metal plate exits the channel 2, and the long and thin metal plate is bent at a set number of times, a set angle and a set position.

[0028] It is worth mentioning that the technical features such as the hydraulic cylinder and the motor involved in the utility model patent application should be regarded as prior art, the specific structure, working principle and possible control mode and spatial arrangement mode of these technical features can be selected by using the conventional selection in the field, and should not be regarded as the invention point of the utility model patent, and the utility model patent will not be further expanded and described in detail.

[0029] The preferred embodiments of the present application are described in detail above, it should be understood that those skilled in the art can make many modifications and changes without creative labor according to the conception of the present application, therefore, all the technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the prior art according to the conception of the present application by those skilled in the art should be within the protection scope determined by the claims.

Claims

1. A long and thin metal plate bending device, characterized by comprising: The device comprises a horizontal installation table, a front conveying mechanism, a bending mechanism, a rear conveying mechanism and a clamping mechanism.

2. The long thin metal plate bending apparatus according to claim 1, wherein The front conveying mechanism comprises a front annular conveying belt below the channel, the front annular conveying belt is installed on a plurality of transmission rollers which are horizontally arranged, the transmission rollers are driven to rotate by a driving mechanism.

3. The long thin metal plate bending apparatus according to claim 2, wherein The clamping mechanism comprises a fixed frame which is fixedly connected to the horizontal installation table, the clamping rollers in the back clamping roller group are rotatably installed on the fixed frame.

4. The long thin metal plate bending apparatus according to claim 1, wherein The fixed rollers are rotatably installed on an adjusting frame, the upper end and the lower end of the adjusting frame are fixedly connected with adjusting screws, the fixed frame is provided with a plurality of active holes through which the adjusting screws are movably arranged, one end of the adjusting screw is fixedly connected with the adjusting frame, the other end of the adjusting screw passes through the active hole, the adjusting screw is threadedly connected with a front nut and a rear nut, and the fixed frame is clamped between the front nut and the rear nut.

5. The long thin metal plate bending apparatus according to claim 4, wherein One end of the driven roller is rotatably connected with a sleeve, one end of the sleeve is hinged to the fixed frame, the sleeve is connected with a tension spring, one end of the tension spring is obliquely upward and fixedly connected with the fixed frame, a plurality of gears are installed on the driven roller, and the inner surface of the rear annular conveying belt is fixedly connected with a plurality of chains which are in gear with the gears.

6. The long thin metal plate bending apparatus according to claim 4, wherein ​ 7. The long thin metal plate bending apparatus of claim 1, wherein One side of the horizontal installation table is provided with a support table, and the middle part of the support table is close to the bending station.

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