Full-hydraulic-drive four-roller plate rolling machine

Abstract

The utility model belongs to the technical field of plate bending machines, and particularly relates to a full-hydraulic drive four-roller plate bending machine which comprises a machine frame, an upper roller, a lower roller and two side rollers, the upper roller is arranged on the top of the machine frame and driven by a hydraulic motor, the lower roller is arranged under the upper roller, and the two side rollers are symmetrically arranged on the left side and the right side of the lower roller. One end of the upper roller (4) is connected with the machine frame (1) through a first shaft seat (3), the other end of the upper roller (4) is connected with the machine frame (1) through a supporting mechanism (7), the supporting mechanism (7) is installed on one side of the machine frame (1), and each side roller (10) is connected with the machine frame (1) through a swing mechanism (17). The roll gap distance between the upper roll and the lower roll is adjusted through relative movement of the upper wedge block and the lower wedge block in the jacking mechanism, the lower roll can bear large loads due to the structural characteristics of the jacking mechanism, and plates can be effectively rolled conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate rolling machines, and in particular relates to a fully hydraulic driven four-roller plate rolling machine. Background Art

[0002] In our daily life, we can see various cylindrical, conical and arc-shaped curved panels everywhere, while the panels produced by the panel factory are usually flat panels. Therefore, we need to perform mechanical bending, curling and other plastic deformation on the relevant flat panels. The plate rolling machine used in mechanical processing can meet the relevant requirements and achieve the relevant curling radius.

[0003] With the advancement and maturity of CNC technology, computer technology and automation technology, various mechanical processing equipment is developing towards high-efficiency, high-precision, automated and intelligent flexible processing units. The overall development trend of plate rolling machines is also developing towards highly intelligent flexible processing units. Plate rolling machines are a type of metal sheet plastic processing equipment. Their working principle is to use multiple working rollers to apply pressure to metal sheets to bend them into curved plates, such as U-shaped, R-shaped, etc.

[0004] The basic structure of the four-roller plate rolling machine includes a frame, an upper roller, a lower roller located directly below the upper roller, and two side rollers symmetrically distributed on the left and right sides of the lower roller. The rotation of the upper roller is driven by an electric motor or a hydraulic motor.

[0005] The current four-roller plate rolling machine uses the synchronous movement of two hydraulic cylinders to adjust the gap between the upper and lower working rolls. First, it will increase the overall cost and make maintenance inconvenient, time-consuming and costly. Second, the synchronous movement of the two hydraulic cylinders is not stable enough. Moreover, after the plate rolling machine is completed, it is inconvenient to unload the plate due to the large bending degree of the plate, which will affect the working efficiency of the plate rolling machine.

[0006] The utility model designs a fully hydraulic driven four-roller plate rolling machine to solve the above problems. Utility Model Content

[0007] In order to solve the above defects in the prior art, the utility model discloses a fully hydraulic driven four-roller plate rolling machine, which is realized by adopting the following technical scheme.

[0008] A fully hydraulically driven four-roller plate rolling machine comprises a frame, an upper roller, a lower roller and two side rollers, wherein the upper roller is arranged on the top of the frame and is driven by a hydraulic motor, the lower roller is arranged directly below the upper roller, and the two side rollers are symmetrically arranged on the left and right sides of the lower roller, and is characterized in that one end of the upper roller is connected to the frame through a No. 1 axle seat, and the other end is connected to the frame through a supporting mechanism, the supporting mechanism is installed on one side of the frame, each of the side rollers is connected to the frame through a swinging mechanism, and the lower roller is connected to the frame through a lifting mechanism, and the supporting mechanism, lifting mechanism, swinging mechanism and hydraulic motor are all connected to the hydraulic system.

[0009] The jacking mechanism includes two No. 3 axle seats, the two No. 3 axle seats respectively slide vertically in two guide grooves on the frame and are connected one-to-one with the two ends of the lower roller, each No. 3 axle seat is connected to an upper wedge block through a No. 2 support seat, and a lower wedge block is correspondingly arranged below the upper wedge block, the two lower wedge blocks are respectively installed at the two ends of the No. 3 hydraulic cylinder, and the two lower wedge blocks slide in the crossbeam track on the frame along the axial direction of the lower roller, and the No. 3 hydraulic cylinder is a double-rod hydraulic cylinder and is installed in the crossbeam track.

[0010] Furthermore, the upper roller is connected to the hydraulic motor via a coupling.

[0011] Furthermore, the supporting mechanism includes a rotating shaft, which is installed in two No. 2 shaft seats on the frame, and a No. 1 support seat is installed on the rotating shaft. The shaft hole on the No. 1 support seat cooperates with the corresponding end of the upper roller, and a rocker arm is installed at one end of the rotating shaft. The rocker arm is hinged to one end of the No. 1 hydraulic cylinder, and the other end of the No. 1 hydraulic cylinder is hinged to the frame, and the No. 1 hydraulic cylinder is connected to the hydraulic system.

[0012] Furthermore, the swing mechanism includes two swing arms, which are symmetrically distributed at the front and rear ends of the side rollers, one end of the swing arm is hinged to the frame, and the other end is connected to the corresponding end of the side roller, the middle part of the swing arm is hinged to one end of the No. 2 hydraulic cylinder, the other end of the No. 2 hydraulic cylinder is hinged to the frame, and the No. 2 hydraulic cylinder is connected to the hydraulic system.

[0013] Furthermore, the horizontal inclination angle of the matching inclined surfaces of the upper wedge block and the lower wedge block is 15 degrees, which can ensure that the matching upper wedge block and the lower wedge block can achieve self-locking of the inclined surfaces under heavy pressure without relying on the continuous output of the No. 3 hydraulic cylinder, and has the advantage of stably bearing larger loads.

[0014] Further, the hydraulic system includes a No. 1 three-position four-way solenoid reversing valve, a No. 2 three-position four-way solenoid reversing valve, a No. 3 three-position four-way solenoid reversing valve and a No. 4 variable pump, the P port of the No. 1 three-position four-way solenoid reversing valve is connected to the T port of the No. 1 variable pump and the P port of the first overflow valve, the P port of the No. 1 variable pump is connected to the oil tank, the A port of the No. 1 three-position four-way solenoid reversing valve is connected to the A port of the No. 1 hydraulic cylinder, and a No. 1 pressure reducing valve is installed on the pipeline between the A port on the No. 1 hydraulic cylinder and the A port on the No. 1 three-position four-way solenoid reversing valve, the B port of the No. 1 hydraulic cylinder is connected to the B port of the No. 1 three-position four-way solenoid reversing valve, the T port of the No. 1 three-position four-way solenoid reversing valve is connected to the oil tank, the P port of the No. 2 three-position four-way solenoid reversing valve is connected to the T port of the No. 2 variable pump and the P port of the No. 2 overflow valve, the P port of the No. 2 variable pump is connected to the oil tank, the A port of the No. 2 three-position four-way solenoid reversing valve is connected to the A port of four No. 1 hydraulic cylinders, each No. 1 hydraulic cylinder A No. 2 pressure reducing valve is installed on the pipeline between the upper A port and the upper A port of the No. 2 three-position four-way solenoid reversing valve. The B ports of the four No. 2 hydraulic cylinders are connected to the B port of the No. 2 three-position four-way solenoid reversing valve. The T port of the No. 2 three-position four-way solenoid reversing valve is connected to the oil tank. The P port of the No. 3 three-position four-way solenoid reversing valve is connected to the T port of the No. 3 variable pump and the P port of the No. 3 overflow valve. The P port of the No. 3 variable pump is connected to the oil tank. The A port of the No. 3 three-position four-way solenoid reversing valve is connected to the No. 3 pressure reducing valve. The P1 port of the pressure relief valve and the P2 port of the No. 3 pressure reducing valve are connected to the A port and the C port of the No. 3 hydraulic cylinder, the B port of the No. 3 hydraulic cylinder is connected to the B port of the No. 3 three-position four-way solenoid reversing valve, the T port of the No. 3 three-position four-way solenoid reversing valve is connected to the oil tank, the P port of the No. 4 variable pump is connected to the oil tank, the T port of the No. 4 variable pump is connected to the P port of the No. 4 relief valve and the liquid inlet of the working chamber of the hydraulic motor, and the T port of the No. 4 relief valve and the liquid outlet of the working chamber of the hydraulic motor are connected to the oil tank.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. Compared with the prior art, the utility model is driven by a fully hydraulic hydraulic system, has a compact structure, small inertia, uniform and stable motion transmission, and a relatively stable speed when the load changes, which can improve the pre-bending and rolling quality of the plate.

[0017] 2. Compared with the prior art, the present invention adjusts the roller gap distance between the upper roller and the lower roller by the relative movement of the upper wedge block and the lower wedge block in the jacking mechanism. The structural characteristics of the jacking mechanism can make the lower roller bear a larger load, which is convenient for effectively rolling the plate. At the same time, compared with the prior art in which the two ends of the lower roller have poor synchronization and unstable movement due to the use of two hydraulic cylinders to drive the lower roller, the cooperation of the upper wedge block and the lower wedge block in the jacking mechanism in the present invention and the synchronous movement structure of the two lower wedge blocks driven by the double-rod No. 3 hydraulic cylinder can ensure the stable and synchronous movement of the two ends of the lower roller.

[0018] 3. Compared with the prior art, the utility model has a simple structure, is easy to maintain and operate, and has fewer No. 1 hydraulic cylinders, No. 2 hydraulic cylinders and No. 3 hydraulic cylinders as actuators, which can effectively reduce the production cost and maintenance cost of the equipment. The utility model has better operating stability and is more convenient to operate.

[0019] 4. The utility model ensures that the upper roller can roll the plate normally and effectively in cooperation with the lower roller by effectively supporting the corresponding end of the upper roller by the No. 1 support seat in the support mechanism. At the same time, the auxiliary support of the corresponding end of the upper roller by the side swing of the No. 1 support seat in the support mechanism is released, so that the unloading work of the arc or cylindrical rolled plate can be completed more conveniently, thereby improving the working and production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the utility model.

[0021] Figure 2 It is a cross-sectional view of the utility model.

[0022] Figure 3 It is a cross-sectional view of the utility model.

[0023] Figure 4 It is a structural diagram of the supporting mechanism.

[0024] Figure 5 This is the structural diagram of the jacking mechanism, lower roller and frame.

[0025] Figure 6 This is a structural diagram of the swing mechanism and the side rollers.

[0026] Figure 7 It is a connection diagram of the hydraulic system in the utility model.

[0027] Name of the label in the figure:

[0028] 1. Frame; 2. Guide groove; 3. No. 1 shaft seat; 4. Upper roller; 5. Coupling; 6. Hydraulic motor; 7. Support mechanism; 701. No. 2 shaft seat; 702. Rotating shaft; 703. No. 1 support seat; 704. Shaft hole; 705. Rocker arm; 706. No. 1 hydraulic cylinder; 8. Lower roller; 9. Lifting mechanism; 901. No. 3 shaft seat; 902. No. 2 support seat; 903. Upper wedge block; 904. Lower wedge block; 905. No. 3 hydraulic cylinder; 906. Crossbeam track; 10. Side roller; 17. Swing mechanism; 1701. Swing arm; 1702 , No. 2 hydraulic cylinder; 1801, No. 1 variable pump; 1802, No. 2 variable pump; 1803, No. 3 variable pump; 1804, No. 4 variable pump; 1901, No. 1 relief valve; 1902, No. 2 relief valve; 1903, No. 3 relief valve; 1904, No. 4 relief valve; 2001, No. 1 three-position four-way solenoid reversing valve; 2002, No. 2 three-position four-way solenoid reversing valve; 2003, No. 3 three-position four-way solenoid reversing valve; 2101, No. 1 pressure reducing valve; 2102, No. 2 pressure reducing valve; 2103, No. 3 pressure reducing valve; 22, oil tank. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] like Figure 1 As shown, a fully hydraulic driven four-roller plate rolling machine includes a frame 1, an upper roller 4, a lower roller 8 and two side rollers 10. Figure 1 , 2 As shown in FIG. 3 , the upper roller 4 is arranged on the top of the frame 1 and is driven by a hydraulic motor 6, the lower roller 8 is arranged directly below the upper roller 4, and the two side rollers 10 are symmetrically arranged on the left and right sides of the lower roller 8. Figure 1 , 2 5, characterized in that one end of the upper roller 4 is connected to the frame 1 through the No. 1 shaft seat 3, and the other end is connected to the frame 1 through the support mechanism 7, the support mechanism 7 is installed on one side of the frame 1, each of the side rollers 10 is connected to the frame 1 through the swing mechanism 17, the lower roller 8 is connected to the frame 1 through the lifting mechanism 9, and the support mechanism 7, the lifting mechanism 9, the swing mechanism 17 and the hydraulic motor 6 are all connected to the hydraulic system. Figure 2 , 5 As shown, the lifting mechanism 9 includes two No. 3 axle seats 901, and the two No. 3 axle seats 901 respectively slide vertically in the two guide grooves 2 on the frame 1 and are connected one-to-one with the two ends of the lower roller 8. Each No. 3 axle seat 901 is connected to an upper wedge block 903 through a No. 2 support seat 902, and a lower wedge block 904 is correspondingly arranged below the upper wedge block 903. The two lower wedge blocks 904 are respectively installed at the two ends of the No. 3 hydraulic cylinder 905, and the two lower wedge blocks 904 slide along the axial direction of the lower roller 8 in the crossbeam track 906 on the frame 1. The No. 3 hydraulic cylinder 905 is a double-rod hydraulic cylinder and is installed in the crossbeam track 906.

[0033] like Figure 2 As shown, the upper roller 4 is connected to the hydraulic motor 6 via a coupling 5 .

[0034] like Figure 2 , 4As shown, the supporting mechanism 7 includes a rotating shaft 702, and the rotating shaft 702 is installed in two No. 2 shaft seats 701 on the frame 1. A No. 1 support seat 703 is installed on the rotating shaft 702. The shaft hole 704 on the No. 1 support seat 703 cooperates with the corresponding end of the upper roller 4. A rocker arm 705 is installed at one end of the rotating shaft 702. The rocker arm 705 is hinged to one end of the No. 1 hydraulic cylinder 706. The other end of the No. 1 hydraulic cylinder 706 is hinged to the frame 1, and the No. 1 hydraulic cylinder 706 is connected to the hydraulic system.

[0035] like Figure 3 , 6 As shown, the swing mechanism 17 includes two swing arms 1701, and the two swing arms 1701 are symmetrically distributed at the front and rear ends of the side roller 10. One end of the swing arm 1701 is hinged to the frame 1, and the other end is connected to the corresponding end of the side roller 10. The middle part of the swing arm 1701 is hinged to one end of the No. 2 hydraulic cylinder 1702, and the other end of the No. 2 hydraulic cylinder 1702 is hinged to the frame 1, and the No. 2 hydraulic cylinder 1702 is connected to the hydraulic system.

[0036] like Figure 2 As shown, the horizontal inclination angle of the matching inclined surfaces of the upper wedge block 903 and the lower wedge block 904 is 15 degrees, which can ensure that the upper wedge block 903 and the lower wedge block 904 that cooperate with each other can achieve self-locking of the inclined surfaces under heavy pressure without relying on the continuous output of the No. 3 hydraulic cylinder 905, and has the advantage of stably bearing larger loads.

[0037] like Figure 7As shown, the hydraulic system includes a No. 1 three-position four-way solenoid reversing valve 2001, a No. 2 three-position four-way solenoid reversing valve 2002, a No. 3 three-position four-way solenoid reversing valve 2003 and a No. 4 variable pump 1804, the P port of the No. 1 three-position four-way solenoid reversing valve 2001 is connected to the T port of the No. 1 variable pump 1801 and the P port of the first overflow valve, the P port of the No. 1 variable pump 1801 is connected to the oil tank 22, the A port of the No. 1 three-position four-way solenoid reversing valve 2001 is connected to the A port of the No. 1 hydraulic cylinder 706, and the A port on the No. 1 hydraulic cylinder 706 is connected to the No. 1 three-position four-way solenoid reversing valve 2001. A No. 1 pressure reducing valve 2101 is installed on the pipeline between the upper and lower A ports, the B port of the No. 1 hydraulic cylinder 706 is connected to the B port of the No. 1 three-position four-way solenoid reversing valve 2001, the T port of the No. 1 three-position four-way solenoid reversing valve 2001 is connected to the oil tank 22, the P port of the No. 2 three-position four-way solenoid reversing valve 2002 is connected to the T port of the No. 2 variable pump 1802 and the P port of the No. 2 overflow valve 1902, the P port of the No. 2 variable pump 1802 is connected to the oil tank 22, the A port of the No. 2 three-position four-way solenoid reversing valve 2002 is connected to the A port of four No. 1 hydraulic cylinders 706, and each No. 1 hydraulic cylinder 706 has a pressure reducing valve 2101 installed on the pipeline between the upper and lower A ports, the B port of the No. 1 hydraulic cylinder 706 is connected to the B port of the No. 1 three-position four-way solenoid reversing valve 2001, the T port of the No. 1 three-position four-way solenoid reversing valve 2001 is connected to the oil tank 22, the P port of the No. 2 variable pump 1802 is connected to the oil tank 22, the A port of the No. 2 three-position four-way solenoid reversing valve 2002 is connected to the A port of each No. 1 hydraulic cylinder 706. A No. 2 pressure reducing valve 2102 is installed on the pipeline between the A port and the A port on the No. 2 three-position four-way solenoid reversing valve 2002, the B ports of the four No. 2 hydraulic cylinders 1702 are connected to the B port of the No. 2 three-position four-way solenoid reversing valve 2002, the T port of the No. 2 three-position four-way solenoid reversing valve 2002 is connected to the oil tank 22, the P port of the No. 3 three-position four-way solenoid reversing valve 2003 is connected to the T port of the No. 3 variable pump 1803 and the P port of the No. 3 overflow valve 1903, the P port of the No. 3 variable pump 1803 is connected to the oil tank 22, and the A port of the No. 3 three-position four-way solenoid reversing valve 2003 is connected to the No. 3 pressure reducing valve 2102. The P1 port of valve 2103 and the P2 port of the No. 3 pressure reducing valve 2103 are connected to the A port and the C port of the No. 3 hydraulic cylinder 905, the B port of the No. 3 hydraulic cylinder 905 is connected to the B port of the No. 3 three-position four-way solenoid reversing valve 2003, the T port of the No. 3 three-position four-way solenoid reversing valve 2003 is connected to the oil tank 22, the P port of the No. 4 variable pump 1804 is connected to the oil tank 22, the T port of the No. 4 variable pump 1804 is connected to the P port of the No. 4 overflow valve 1904 and the liquid inlet of the working chamber of the hydraulic motor 6, and the T port of the No. 4 overflow valve 1904 and the liquid outlet of the working chamber of the hydraulic motor 6 are connected to the oil tank 22.

[0038] The operating principle of the utility model is as follows:

[0039] Adjust the No. 1 three-position four-way solenoid reversing valve 2001 to the left position. The hydraulic oil from the oil tank 22 passes through the No. 1 variable pump 1801, passes through the PA channel of the No. 1 three-position four-way solenoid reversing valve 2001, and then passes through the P1-P2 channel of the No. 1 pressure reducing valve 2101, and finally flows into the A port of the No. 1 hydraulic cylinder 706, so that the No. 1 hydraulic cylinder 706 completes the extension action. The No. 1 hydraulic cylinder 706 drives the rotating shaft 702 to rotate through the rocker arm 705, and the rotating shaft 702 drives the No. 1 support seat 703 to swing to a vertical state around the center line of the rotating shaft 702, so that one end of the upper roller 4 enters the shaft hole 704 on the No. 1 support seat 703 and completes the support for one end of the upper roller 4.

[0040] Adjust the No. 3 three-position four-way solenoid reversing valve 2003 to the right position. The hydraulic oil from the oil tank 22 flows into the B port of the No. 3 hydraulic cylinder 905 through the TB channel of the No. 3 three-position four-way solenoid reversing valve 2003. At this time, the two ends of the No. 3 hydraulic cylinder 905 extend, pushing the two lower wedge blocks 904 to move horizontally to both sides in the crossbeam track 906 at a constant speed. Under the action of the lower wedge blocks 904, the two upper wedge blocks 903 move vertically upward, thereby causing the lower roller 8 to rise vertically, so that one end of the flat plate is tightly clamped between the upper roller 4 and the lower roller 8.

[0041] Adjust the No. 2 three-position four-way solenoid reversing valve 2002 to the left position. The hydraulic oil from the oil tank 22 passes through the No. 2 variable pump 1802, passes through the PA channel of the No. 2 three-position four-way solenoid reversing valve 2002, and then passes through the P1-P2 channels of the four No. 2 pressure reducing valves 2102 at the same time, and finally flows into the A ports of the four No. 2 hydraulic cylinders 1702 at the same time, so that the four No. 2 hydraulic cylinders 1702 complete the extension action synchronously. The two No. 2 hydraulic cylinders 1702 in each swing mechanism 17 synchronously drive the side rollers 10 connected to the corresponding two swing arms 1701 to swing upward around the hinge point between the swing arm 1701 and the frame 1, and the upward swing speed and swing amplitude of the two side rollers 10 are equal, so that the two ends of the plate are bent upward from both sides of the upper roller 4 to a certain required arc.

[0042] Then, the hydraulic oil from the oil tank 22 flows into the working chamber of the hydraulic motor 6 through the No. 4 variable pump 1804. The hydraulic motor 6 drives the upper roller 4 to rotate through the coupling 5. The rotating upper roller 4 drives the flat plate to move. The moving flat plate forms the required curved plate under the action of the upper roller 4, the lower roller 8 and the two side rollers 10.

[0043] After the curved sheet material is rolled and formed, adjust the No. 3 three-position four-way solenoid reversing valve 2003 to the left position, and the hydraulic oil from the oil tank 22 passes through the No. 3 variable pump 1803, passes through the PA channel of the No. 3 three-position four-way solenoid reversing valve 2003, and then passes through the P1-P2 channel of the No. 3 pressure reducing valve 2103 to flow into the A port and C port of the No. 3 hydraulic cylinder 905, thereby making the two ends of the No. 3 hydraulic cylinder 905 complete the contraction action, and the two ends of the No. 3 hydraulic cylinder 905 drive the two lower wedge blocks 904 to move horizontally toward the middle in the crossbeam track 906 at a constant speed, and the two upper wedge blocks 903 move vertically downward under the action of their own weight, thereby driving the lower roller 8 to descend vertically and end the interaction with the upper roller 4.

[0044] Next, adjust the No. 2 three-position four-way solenoid reversing valve 2002 to the right position, and the hydraulic oil from the oil tank 22 passes through the No. 2 variable pump 1802, passes through the TB channel of the No. 2 three-position four-way solenoid reversing valve 2002, and flows into the B ports of the four No. 2 hydraulic cylinders 1702 at the same time, so that the four No. 2 hydraulic cylinders 1702 synchronously complete the contraction action, and the two No. 2 hydraulic cylinders 1702 in each swing mechanism 17 synchronously drive the side rollers 10 connected to the corresponding two swing arms 1701 to swing downward around the hinge point between the swing arm 1701 and the frame 1 and detach from the curved plate material, and the downward swing speed and swing amplitude of the two side rollers 10 are equal.

[0045] Next, adjust the No. 1 three-position four-way solenoid reversing valve 2001 to the right position, and the hydraulic oil from the oil tank 22 passes through the No. 1 variable pump 1801, passes through the TB channel of the No. 1 three-position four-way solenoid reversing valve 2001, and flows into the B port of the No. 1 hydraulic cylinder 706, so that the No. 1 hydraulic cylinder 706 completes the contraction action, and the No. 1 hydraulic cylinder 706 drives the rotating shaft 702 to rotate through the rocker arm 705, and the rotating shaft 702 drives the No. 1 support seat 703 to swing to a horizontal state around the center line of the rotating shaft 702, so that one end of the upper roller 4 is disengaged from the shaft hole 704 on the No. 1 support seat 703 and releases the support of the No. 1 support seat 703 for one end of the upper roller 4. At this time, the processed arc or cylindrical curved surface plate can be smoothly taken out along the axial direction of the upper roller 4.

Claims

1. A fully hydraulically driven four-roller plate rolling machine, comprising a frame (1), an upper roller (4), a lower roller (8) and two side rollers (10), wherein the upper roller (4) is arranged on the top of the frame (1) and is driven by a hydraulic motor (6), the lower roller (8) is arranged directly below the upper roller (4), and the two side rollers (10) are symmetrically arranged on the left and right sides of the lower roller (8), characterized in that: One end of the upper roller (4) is connected to the frame (1) via a No. 1 axle seat (3), and the other end is connected to the frame (1) via a support mechanism (7), the support mechanism (7) is installed on one side of the frame (1), each of the side rollers (10) is connected to the frame (1) via a swing mechanism (17), the lower roller (8) is connected to the frame (1) via a lifting mechanism (9), and the support mechanism (7), the lifting mechanism (9), the swing mechanism (17) and the hydraulic motor (6) are all connected to a hydraulic system; The lifting mechanism (9) comprises two No. 3 shaft seats (901), the two No. 3 shaft seats (901) respectively slide vertically in two guide grooves (2) on the frame (1) and are connected to the two ends of the lower roller (8) in a one-to-one correspondence, each No. 3 shaft seat (901) is connected to an upper wedge block (903) via a No. 2 support seat (902), a lower wedge block (904) is correspondingly arranged below the upper wedge block (903), the two lower wedge blocks (904) are respectively installed at the two ends of the No. 3 hydraulic cylinder (905), the two lower wedge blocks (904) slide in the crossbeam track (906) on the frame (1) along the axial direction of the lower roller (8), and the No. 3 hydraulic cylinder (905) is a double-rod hydraulic cylinder and is installed in the crossbeam track (906).

2. A fully hydraulic driven four-roller plate rolling machine according to claim 1, characterized in that: The upper roller (4) is connected to the hydraulic motor (6) via a coupling (5).

3. The fully hydraulic driven four-roller plate rolling machine according to claim 1, characterized in that: The support mechanism (7) comprises a rotating shaft (702), wherein the rotating shaft (702) is installed in two No. 2 shaft seats (701) on the frame (1), a No. 1 support seat (703) is installed on the rotating shaft (702), an axis hole (704) on the No. 1 support seat (703) cooperates with the corresponding end of the upper roller (4), a rocker arm (705) is installed on one end of the rotating shaft (702), the rocker arm (705) is hinged to one end of a No. 1 hydraulic cylinder (706), the other end of the No. 1 hydraulic cylinder (706) is hinged to the frame (1), and the No. 1 hydraulic cylinder (706) is connected to a hydraulic system.

4. The fully hydraulic driven four-roller plate rolling machine according to claim 1, characterized in that: The swing mechanism (17) comprises two swing arms (1701), the two swing arms (1701) are symmetrically distributed at the front and rear ends of the side roller (10), one end of the swing arm (1701) is hinged to the frame (1), and the other end is connected to the corresponding end of the side roller (10), the middle part of the swing arm (1701) is hinged to one end of the second hydraulic cylinder (1702), the other end of the second hydraulic cylinder (1702) is hinged to the frame (1), and the second hydraulic cylinder (1702) is connected to the hydraulic system.

5. The fully hydraulic driven four-roller plate rolling machine according to claim 1, characterized in that: The horizontal inclination angle of the matching inclined surfaces of the upper wedge block (903) and the lower wedge block (904) is 15 degrees.

6. The fully hydraulic driven four-roller plate rolling machine according to claim 1, characterized in that: The hydraulic system comprises a No. 1 three-position four-way solenoid reversing valve (2001), a No. 2 three-position four-way solenoid reversing valve (2002), a No. 3 three-position four-way solenoid reversing valve (2003) and a No. 4 variable pump (1804), wherein the P port of the No. 1 three-position four-way solenoid reversing valve (2001) is connected to the T port of the No. 1 variable pump (1801) and the P port of the first overflow valve (1901), the P port of the No. 1 variable pump (1801) is connected to the oil tank (22), the A port of the No. 1 three-position four-way solenoid reversing valve (2001) is connected to the A port of the No. 1 hydraulic cylinder (706), and the A port on the No. 1 hydraulic cylinder (706) is connected to the No. 1 three-position four-way solenoid reversing valve (2001). A No. 1 pressure reducing valve (2101) is installed on the pipeline between the upper and lower A ports, the B port of the No. 1 hydraulic cylinder (706) is connected to the B port of the No. 1 three-position four-way electromagnetic reversing valve (2001), the T port of the No. 1 three-position four-way electromagnetic reversing valve (2001) is connected to the oil tank (22), the P port of the No. 2 three-position four-way electromagnetic reversing valve (2002) is connected to the T port of the No. 2 variable pump (1802) and the P port of the No. 2 overflow valve (1902), the P port of the No. 2 variable pump (1802) is connected to the oil tank (22), the A port of the No. 2 three-position four-way electromagnetic reversing valve (2002) is connected to the A ports of the four No. 1 hydraulic cylinders (706), and the upper A port of each No. 1 hydraulic cylinder (706) is connected to the upper A port of each No. 1 hydraulic cylinder (706). A No. 2 pressure reducing valve (2102) is installed on the pipeline between the No. 2 port and the No. 2 three-position four-way solenoid reversing valve (2002) A port, the No. 2 hydraulic cylinders (1702) B ports are connected to the No. 2 three-position four-way solenoid reversing valve (2002) B port, the No. 2 three-position four-way solenoid reversing valve (2002) T port is connected to the oil tank (22), the No. 3 three-position four-way solenoid reversing valve (2003) P port is connected to the No. 3 variable pump (1803) T port and the No. 3 overflow valve (1903) P port is connected to the oil tank (22), the No. 3 variable pump (1803) A port is connected to the No. 3 pressure reducing valve (2102), the No. 3 three-position four-way solenoid reversing valve (2003) A port is connected to the No. 3 pressure reducing valve (2102), the No. 3 three-position four-way solenoid reversing valve (2003) B port is connected to the No. 2 three-position four-way solenoid reversing valve (2002) B port, the No. 2 three-position four-way solenoid reversing valve (2002) T port is connected to the oil tank (22), the No. 3 three-position four-way solenoid reversing valve (2003) P port is connected to the oil tank (22), the No. 3 three-position four-way solenoid reversing valve (2003) A port is connected to the No. 3 pressure reducing valve (210 ... The P1 port of the No. 3 pressure reducing valve (2103) is connected to the A port and the C port of the No. 3 hydraulic cylinder (905); the B port of the No. 3 hydraulic cylinder (905) is connected to the B port of the No. 3 three-position four-way electromagnetic reversing valve (2003); the T port of the No. 3 three-position four-way electromagnetic reversing valve (2003) is connected to the oil tank (22); the P port of the No. 4 variable pump (1804) is connected to the oil tank (22); the T port of the No. 4 variable pump (1804) is connected to the P port of the No. 4 overflow valve (1904) and the liquid inlet of the working chamber of the hydraulic motor (6); the T port of the No. 4 overflow valve (1904) and the liquid outlet of the working chamber of the hydraulic motor (6) are connected to the oil tank (22).

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