Three-roller plate rolling device

Abstract

The utility model provides a three-roller plate rolling device, which belongs to the technical field of metal plate processing equipment and comprises a base frame, a left support, a right support, an upper roller, a lower roller, a carrier roller, a hydraulic station and a programmable logic controller (PLC) control cabinet, the left support is arranged at the left end of the base frame, and the right support is arranged at the right end of the base frame. The upper roller and the two lower rollers are connected between the left support and the right support respectively, the two lower rollers are arranged in parallel, the upper roller is arranged above the position between the two lower rollers, the right end of the upper roller is connected with the hydraulic motor, the hydraulic motor is connected with the hydraulic station, the carrier rollers are arranged on the two sides of the middle of the lower rollers respectively, one end of each carrier roller is connected with the carrier roller motor, and the other end of each carrier roller is connected with the hydraulic station. And the carrier roller motor and the hydraulic station are respectively connected with the PLC control cabinet. According to the three-roller plate rolling device, by adjusting the position of the lower roller, the bending radius of a plate can be more accurately controlled, and the machining precision is improved; the device can adapt to rolling of plates with different thicknesses and materials, and has higher universality; automatic operation is achieved through the PLC control cabinet, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal sheet processing equipment technical field especially relates to a three roll plate rolling device. BACKGROUND

[0002] Three roll plate rolling device is a kind of mechanical equipment commonly used to roll metal sheet into circular, arc or conical shape. Its working principle is based on three-point circle forming mode, and the relative position between side roller and upper roller is adjusted to obtain predetermined shape. Put the metal sheet between the three rollers, gradually press the upper roller down by mechanical or hydraulic system, so that the metal sheet is subjected to certain pressure, the lower roller on both sides rotates and drives the sheet to roll along the upper roller, and through multiple rolling cycles, the sheet is gradually rolled into the required arc or circle. By adjusting the position of the upper roller, the bending radius of the sheet can be changed to form different arc. It usually needs multiple rolling and pressure adjustment to achieve the required accuracy and shape.

[0003] Traditional three roll plate rolling device mostly adopts upper roller down-pressing structure, that is, the bending of the sheet is realized by the lifting of the upper roller. The above-mentioned existing three roll plate rolling device has the following shortcomings: poor adaptability to sheets of different thickness and material, the upper roller needs to be lifted greatly when processing large-diameter workpieces, the operation is relatively complex, and the processing accuracy is difficult to guarantee. SUMMARY

[0004] The utility model aims at providing a kind of three roll plate rolling device, solve the technical problem that the processing accuracy of existing three roll plate rolling device is difficult to guarantee. The utility model replaces the lifting of upper roller by the horizontal adjustment of lower roller, thereby optimizing the operation process, reducing the energy consumption of equipment, and improving the bending accuracy and consistency of sheet and processing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of three roll plate rolling device, including base frame, left support, right support, upper roller, lower roller, carrier roller, hydraulic station and PLC control cabinet, left support is arranged at the left end of base frame, right support is arranged at the right end of base frame, upper roller and two lower rollers are connected between left support and right support, two lower rollers are parallelly arranged, upper roller is arranged above two lower rollers, the right end of upper roller is connected with hydraulic motor, hydraulic motor is connected with hydraulic station, carrier roller is arranged at the two sides of the middle part of lower roller respectively, one end of carrier roller is connected with carrier roller motor, carrier roller motor and hydraulic station are connected with PLC control cabinet respectively.

[0007] Further, the middle part of left support and right support is respectively provided with lifting device, the left and right ends of left support and right support are respectively provided with waist-shaped hole, and the waist-shaped hole is respectively inclinedly arranged to the two sides of lifting device.

[0008] Further, the lifting device comprises an upper bearing seat and a hydraulic jack, the hydraulic jack is connected to the support, the hydraulic jack is connected to the upper bearing seat, and the two ends of the upper roller are connected to the upper bearing seat respectively.

[0009] Further, the top end of the hydraulic jack on the left support is provided with a connecting shaft, the upper bearing seat on the left support is rotatably connected to the connecting shaft, and the upper bearing seat on the left support is provided with an upper turnover support.

[0010] Further, the left end of the base rack is provided with a lower turnover support, the lower turnover support is connected to the base rack, the lower turnover support is provided with a turnover hydraulic oil cylinder, the lower end of the turnover hydraulic oil cylinder is hingedly connected to the lower turnover support, the upper end of the turnover hydraulic oil cylinder is hingedly connected to the upper turnover support, and the turnover hydraulic oil cylinder is connected to the hydraulic station.

[0011] Further, the waist-shaped hole is provided with a lower bearing seat, the lower bearing seat is movably arranged in the waist-shaped hole, the two ends of the lower roller are connected to the lower bearing seat respectively, the lower end of the lower bearing seat is connected to a displacement hydraulic oil cylinder, the lower end of the displacement hydraulic oil cylinder is connected to the base rack, and the displacement hydraulic oil cylinder is connected to the hydraulic station.

[0012] Further, a roller reducer is arranged between the carrier roller and the carrier roller motor, a roller seat is arranged below the carrier roller, the carrier roller and the carrier roller motor are connected to the roller seat respectively, the lower end of the roller seat is connected to a carrier roller lifting device, and the carrier roller lifting device is connected to the base rack.

[0013] Further, an upper roller reducer is arranged between the hydraulic motor and the upper roller, and the upper roller reducer is connected to the output end of the hydraulic motor.

[0014] The three-roller plate rolling device has the following beneficial effects due to the adoption of the above technical scheme.

[0015] 1. The three-roller plate rolling device can more accurately control the bending radius of the plate material by adjusting the position of the lower roller, and improve the machining precision.

[0016] 2. The three-roller plate rolling device can adapt to plate rolling of different thicknesses and materials, and has stronger universality.

[0017] 3. The three-roller plate rolling device is controlled by the PLC control cabinet, realizes automatic operation, and improves the production efficiency. DRAWINGS

[0018] Figure 1 is the front view of the three-roller plate rolling device of the utility model;

[0019] Figure 2 is the side view of the left support of the utility model.

[0020] In the drawings, 1 is a seat frame, 11 is a lower turnover support, 12 is a turnover hydraulic oil cylinder, 2 is a left support, 211 is an upper bearing seat, 212 is a hydraulic jack, 22 is a waist-shaped hole, 221 is a lower bearing seat, 222 is a displacement hydraulic oil cylinder, 3 is a right support, 4 is an upper roller, 41 is a hydraulic motor, 42 is an upper roller speed reducer motor, 5 is a lower roller, 6 is a carrier roller, 61 is a carrier roller motor, 62 is a carrier roller speed reducer, 63 is a carrier roller seat, 64 is a carrier roller lifting device, 7 is a hydraulic station, 8 is a PLC control cabinet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, the following preferred embodiments are described in detail with reference to the drawings. However, it should be noted that many details in the description are only for the reader to have a thorough understanding of one or more aspects of the present application, and these aspects can be realized without these specific details.

[0022] As Figure 1As shown, a three-roller plate rolling device includes a base frame 1, a left support 2, a right support 3, an upper roller 4, a lower roller 5, a carrier roller 6, a hydraulic station 7, and a PLC control cabinet 8. The left support 2 is arranged at the left end of the base frame 1 and is connected with the base frame 1. The right support 3 is arranged at the right end of the base frame 1 and is connected with the base frame 1. The left support 2 and the right support 3 are respectively used for fixing and supporting the upper roller mechanism and the lower roller mechanism. The base frame 1 is located at the lowermost position of the entire device and is used for fixing and supporting the entire device. The upper roller 4 and the two lower rollers 5 are respectively connected between the left support 2 and the right support 3, and the upper roller 4 and the two lower rollers 5 can rotate on the supports. The two lower rollers 5 are arranged in parallel and can move in position. The upper roller 4 is arranged above the two lower rollers 5. The right end of the upper roller 4 is connected with a hydraulic motor 41. The hydraulic motor 41 is connected with the hydraulic station 7. The PLC control cabinet 8 controls the work of the hydraulic station 7. The hydraulic station 7 controls the start and stop of the hydraulic motor 41. The hydraulic motor 41 drives the upper roller 4 to rotate on the support. The carrier rollers 6 are respectively arranged at the two sides of the middle part of the lower rollers 5. One end of each carrier roller 6 is connected with a carrier roller motor 61. The carrier roller motor 61 and the hydraulic station 7 are respectively connected with the PLC control cabinet 8. The PLC control cabinet 8 controls the start and stop of the carrier roller motor 61. The carrier roller motor 61 drives the carrier roller 6 to rotate, so that the carrier roller 6 drives the lower roller 5 to rotate. The PLC control cabinet 8 accurately controls the entire plate rolling process through sensors, realizes automatic operation and real-time monitoring. The upper roller 4 is located at the center position and serves as a fixed main roller for applying pressure during plate rolling. The two lower rollers 5 are located at the two sides below the upper roller 4 and can adjust the position through the hydraulic station 7 to control the rolling radius of the plate. The plate is sent into the three rollers. The upper roller 4 and the lower roller 5 drive the plate to rotate and control the bending angle of the plate by adjusting the position of the lower roller. The operator can accurately adjust the distance between the two lower rollers through the hydraulic station 7, and then adjust the bending radius of the plate. This design simplifies the complex lifting operation of the upper roller, especially when processing large-diameter workpieces, which can reduce energy consumption and improve production efficiency. The three-roller plate rolling device is controlled by the PLC control cabinet to realize automatic operation and improve production efficiency. The three-roller plate rolling device can more accurately control the bending radius of the plate by adjusting the position of the lower roller 5, thereby improving the processing precision.

[0023] When rolling, the operator sends the plate into the three rollers, makes the lower roller contact with the plate, sets the rolling parameters such as speed, pressure, radius, etc. on the operation panel of the PLC control cabinet. Adjust the position of the two lower rollers through the hydraulic station by operating the corresponding buttons and knobs, and then control the bending angle of the plate. Start the hydraulic motor 41 and the carrier roller motor 61 by operating the corresponding switches on the PLC control cabinet, and drive the upper and lower rollers to rotate. When the upper and lower rollers rotate, the sent plate moves through the friction force of the upper and lower rollers. Through multiple rotations, the plate is squeezed between the upper and lower rollers to complete the bending process of the plate. After bending is completed, the plate is taken out of the device, and the entire plate rolling process is completed.

[0024] In the embodiment of the utility model, the supporting roller 6 and the supporting roller motor 61 are provided with a supporting roller speed reducer 62, the lower part of the supporting roller 6 is provided with a supporting roller seat 63, and the supporting roller 6 and the supporting roller motor 61 are connected on the supporting roller seat 63 respectively, the supporting roller seat 63 is used for fixing the supporting roller 6 and the supporting roller motor 61, the lower end of the supporting roller seat 63 is connected with a supporting roller lifting device 64, the supporting roller lifting device 64 is used for the supporting roller seat 63, and the lifting supporting roller lifting device 64 is connected on the base rack 1. The supporting roller 6 is used for controlling the rotation of the lower roller 5, and drives the plate to roll along the upper roller 4.

[0025] The base rack 1 is provided with a groove, the middle of the groove is provided with a bottom hydraulic oil cylinder support, two bottom hydraulic oil cylinders are hinged on the bottom hydraulic oil cylinder support respectively, the upper side wall of the groove is provided with a sliding groove, a sliding plate is arranged between the sliding grooves, the bottom hydraulic oil cylinder is connected with the middle of the bottom end of the sliding plate, and the left and right ends of the sliding plate are slidably arranged in the sliding grooves respectively. The bottom ends of the pair of supporting roller lifting devices 64 are connected on the sliding plate.

[0026] When the lower roller 5 moves obliquely upwards, the bottom hydraulic oil cylinder is stretched, the sliding plate is driven to move to the lower part of the lower roller 5, then the supporting roller lifting device 64 rises, the supporting roller lifting device 64 drives the supporting roller 6 to the two sides of the lower roller 5, the supporting roller 6 contacts the two sides of the lower roller 5 respectively, and the lower roller 5 can be driven to rotate through the supporting roller motor 6; when the lower roller 5 needs to move obliquely downwards, the bottom hydraulic oil cylinder is contracted, the sliding plate is driven to move to the middle, then the supporting roller lifting device 64 descends, so that the supporting roller 6 descends to the actual required position, then the lower roller 5 is controlled to move obliquely downwards, and the two sides of the lower roller 5 contact the supporting roller 6, so that the lower roller 5 can be driven to rotate through the supporting roller motor 6.

[0027] In the embodiment of the utility model, the hydraulic motor 41 and the upper roller 4 are provided with an upper roller speed reducer 42, and the upper roller speed reducer 42 is connected on the output end of the hydraulic motor 41. The hydraulic station 7 controls the work of the hydraulic motor 41, and the hydraulic motor 41 drives the upper roller 4 to rotate.

[0028] As Figure 2As shown, the middle part of the left support 2 and the right support 3 is respectively provided with a lifting device, the lifting device is used to drive the upper roller 4 to lift, the left and right ends of the left support 2 and the right support 3 are respectively provided with a waist-shaped hole 22, the waist-shaped hole 22 is respectively inclinedly arranged to the two sides of the lifting device, and the waist-shaped hole 22 is used to adjust the position of the lower roller 5. The lifting device comprises an upper bearing seat 211 and a hydraulic jack 212, the hydraulic jack 212 is connected on the support, the hydraulic jack 212 is connected with the upper bearing seat 211, the two ends of the upper roller 4 are respectively connected on the upper bearing seat 211, the hydraulic jack 212 is connected with the hydraulic station 7, the hydraulic station 7 controls the hydraulic jack 212 to work, the upper bearing seat 211 is driven to lift by the hydraulic jack 212, so that the upper roller 4 is driven to lift. When it is needed to adjust the upper roller 4 to lift, the hydraulic jack 212 is controlled to lift by the hydraulic station 7, the upper bearing seat 211 is driven to lift to the required height by the hydraulic jack 212; when it is needed to adjust the upper roller 4 to lower, the hydraulic jack 212 is controlled to lower by the hydraulic station 7, the upper bearing seat 211 is driven to lower to the required height by the hydraulic jack 212.

[0029] In the embodiment of the utility model, the top of hydraulic jack 212 on left support 2 is provided with connecting shaft (not marked in the drawing), upper bearing seat 211 on left support 2 is rotatably connected on connecting shaft, upper bearing seat 211 on left support 2 can overturn on connecting shaft, upper bearing seat 211 on left support 2 is provided with upper overturning support 213, which is used to connect overturning hydraulic oil cylinder 12.

[0030] As shown in the figure, Figures 1-2 The left end of base frame 1 is provided with lower overturning support 11, lower overturning support 11 is connected with base frame 1, so that lower overturning support 11 is fixed on base frame 1, overturning hydraulic oil cylinder 12 is arranged on lower overturning support 11, the lower end of overturning hydraulic oil cylinder 12 is hinged on lower overturning support 11, so that the lower end of overturning hydraulic oil cylinder 12 can rotate on lower overturning support 11, the upper end of overturning hydraulic oil cylinder 12 is hinged on upper overturning support 213, so that the upper end of overturning hydraulic oil cylinder 12 can rotate on upper overturning support 213, overturning hydraulic oil cylinder 12 is connected with hydraulic station 7, hydraulic station 7 controls the extension and contraction of overturning hydraulic oil cylinder 12. When the three-roller plate rolling device completes the plate rolling work, hydraulic station 7 controls overturning hydraulic oil cylinder 12 to contract, overturning hydraulic oil cylinder 12 drives upper bearing seat 211 to overturn outward, and the rolled plate is placed out from the left end of upper roller 4; after the plate is placed out, hydraulic station 7 controls overturning hydraulic oil cylinder 12 to stretch, overturning hydraulic oil cylinder 12 drives upper bearing seat 211 to return to the original position, so that upper roller 4 can rotate on upper bearing seat 211.

[0031] In the embodiment of the utility model, the lower bearing seat 221 is arranged in the waist type hole 22, the lower bearing seat 221 is movably arranged in the waist type hole 22, the two ends of the lower roller 5 are connected on the lower bearing seat 221 respectively, the lower end of the lower bearing seat 221 is connected with the displacement hydraulic oil cylinder 222, the displacement hydraulic oil cylinder 222 is arranged obliquely, the lower end of the displacement hydraulic oil cylinder 222 is connected on the base frame 1, the displacement hydraulic oil cylinder 222 is connected with the hydraulic station 7, the hydraulic station 7 controls the displacement hydraulic oil cylinder 222 to stretch out and shrink, the displacement hydraulic oil cylinder 222 drives the lower bearing seat 221 to move obliquely upwards or obliquely downwards in the waist type hole 22, thereby driving the lower roller 5 to move obliquely upwards or obliquely downwards. When it is needed to adjust the upward movement of the lower roller 5, the hydraulic station 7 controls the displacement hydraulic oil cylinder 222 to stretch, the displacement hydraulic oil cylinder 222 drives the lower bearing seat 221 to move obliquely upwards, thereby driving the lower roller 5 to move obliquely upwards; when it is needed to adjust the downward movement of the lower roller 5, the hydraulic station 7 controls the displacement hydraulic oil cylinder 222 to shrink, the displacement hydraulic oil cylinder 222 drives the lower bearing seat 221 to move obliquely downwards, thereby driving the lower roller 5 to move obliquely downwards.

[0032] Operation process

[0033] When the plate is rolled, the staff sends the plate between the upper roller 4 and the lower roller 5, and makes the plate contact with the upper roller 4 and the lower roller 5, controls the hydraulic station 7 by operating the PLC control cabinet 8, controls the displacement hydraulic oil cylinder 222 to stretch out and shrink through the hydraulic station 7, the displacement hydraulic oil cylinder 222 drives the lower bearing seat 221 to move obliquely upwards or obliquely downwards in the waist type hole 22, thereby driving the lower roller 5 to move obliquely upwards or obliquely downwards, so as to adjust the position of the two lower rollers 5, and further control the bending angle of the plate; then controls the idler motor 61 and the hydraulic motor 41 by operating the PLC control cabinet 8, the hydraulic motor 41 and the idler motor 61 drive the upper roller 4 and the lower roller 5 to rotate respectively (the hydraulic jack 212 can be controlled to work through the hydraulic station 7, the upper bearing seat 211 is driven to ascend and descend through the hydraulic jack 212, thereby driving the upper roller 4 to ascend and descend, so as to exert pressure on the plate), the plate is extruded between the upper roller and the lower roller, the bending process of the plate is completed through multiple rotations, after bending, the turnover hydraulic oil cylinder 12 is controlled to shrink through the hydraulic station 7, the turnover hydraulic oil cylinder 12 drives the upper bearing seat 211 to turn outwards, the staff takes out the rolled plate from the left end of the upper roller 4, and the whole plate rolling process is completed; after the plate is taken out, the turnover hydraulic oil cylinder 12 is controlled to stretch by the hydraulic station 7, the turnover hydraulic oil cylinder 12 drives the upper bearing seat 211 to return to the original position, so that the upper roller 4 can rotate on the upper bearing seat 211.

[0034] The preferred embodiments of the utility model are described above, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A three-roller plate rolling device, characterized in that: The invention comprises a base frame (1), a left bracket (2), a right bracket (3), an upper roller (4), a lower roller (5), an idler (6), a hydraulic station (7) and a PLC control cabinet (8). The left bracket (2) is arranged at the left end of the base frame (1), the right bracket (3) is arranged at the right end of the base frame (1), the upper roller (4) and the two lower rollers (5) are respectively connected between the left bracket (2) and the right bracket (3), the two lower rollers (5) are arranged in parallel, the upper roller (4) is arranged above the two lower rollers (5), the right end of the upper roller (4) is connected to a hydraulic motor (41), the hydraulic motor (41) is connected to the hydraulic station (7), the idlers (6) are respectively arranged on both sides of the middle of the lower roller (5), one end of the idler (6) is connected to an idler motor (61), and the idler motor (61) and the hydraulic station (7) are respectively connected to the PLC control cabinet (8).

2. The three-roller plate rolling device according to claim 1, characterized in that: The middle of the left bracket (2) and the right bracket (3) are respectively provided with lifting devices, and the left and right ends of the left bracket (2) and the right bracket (3) are respectively provided with waist-shaped holes (22), and the waist-shaped holes (22) are respectively inclined to the two sides of the lifting devices.

3. The three-roller plate rolling device according to claim 2, characterized in that: The lifting device comprises an upper bearing seat (211) and a hydraulic jack (212), wherein the hydraulic jack (212) is connected to the bracket, the hydraulic jack (212) is connected to the upper bearing seat (211), the two ends of the upper roller (4) are respectively connected to the upper bearing seat (211), and the hydraulic jack (212) is connected to the hydraulic station (7).

4. The three-roller plate rolling device according to claim 3, characterized in that: A connecting shaft is provided at the top end of the hydraulic jack (212) on the left bracket (2); an upper bearing seat (211) on the left bracket (2) is rotatably connected to the connecting shaft; and an upper flip support (213) is provided on the upper bearing seat (211) on the left bracket (2).

5. The three-roller plate rolling device according to claim 1, characterized in that: A lower flip support (11) is provided on the left end of the base frame (1), the lower flip support (11) is connected to the base frame (1), a flip hydraulic oil cylinder (12) is provided on the lower flip support (11), the lower end of the flip hydraulic oil cylinder (12) is hinged on the lower flip support (11), the upper end of the flip hydraulic oil cylinder (12) is hinged on the upper flip support (213), and the flip hydraulic oil cylinder (12) is connected to the hydraulic station (7).

6. The three-roller plate rolling device according to claim 2, characterized in that: A lower bearing seat (221) is provided in the waist-shaped hole (22), and the lower bearing seat (221) is movably provided in the waist-shaped hole (22). The two ends of the lower roller (5) are respectively connected to the lower bearing seat (221). The lower end of the lower bearing seat (221) is connected to a displacement hydraulic cylinder (222). The lower end of the displacement hydraulic cylinder (222) is connected to the base frame (1), and the displacement hydraulic cylinder (222) is connected to the hydraulic station (7).

7. The three-roller plate rolling device according to claim 1, characterized in that: A roller reducer (62) is provided between the roller (6) and the roller motor (61), a roller seat (63) is provided below the roller (6), and the roller (6) and the roller motor (61) are respectively connected to the roller seat (63), and the lower end of the roller seat (63) is connected to a roller lifting device (64), and the roller lifting device (64) is connected to the base frame (1).

8. The three-roller plate rolling device according to claim 1, characterized in that: An upper roller reduction motor (42) is provided between the hydraulic motor (41) and the upper roller (4), and the upper roller reduction motor (42) is connected to the output end of the hydraulic motor (41).

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