A papermaking rewinding machine roll changing press

Abstract

The utility model relates to rewinding equipment technical field discloses a kind of papermaking rewinding machine roll change pressure head, including rack, motor drive mechanism is fixedly connected on rack, the output end of motor drive mechanism is fixedly connected with expansion roller, hydraulic station is fixedly connected on rack near motor drive mechanism position, main control unit is fixedly connected on hydraulic station, and motor drive mechanism and main control unit are electrically connected with main control unit respectively through cable, rack side is fixedly connected with multiple shaft seats, and multiple shaft seats are rotatably connected with shaft sleeve between, shaft sleeve is movably connected with shaft. Through the second hydraulic cylinder driving shaft sleeve moves, cooperate with the paper roll to be pushed to correct position by push frame and connecting plate, ensure accurate positioning, at the same time, first hydraulic cylinder will be rotated to shaft sleeve and rotate shaft, so that synchronous time pressure wheel is in tension spring effect and touches paper roll outside, can prevent paper roll to be scattered due to tension change when unwinding, avoid subsequent rewinding to appear paper edge uneven, tension uneven and the like problem.

Description

Technical Field

[0001] This utility model relates to the field of rewinding equipment technology, and in particular to a paper rewinding machine changing pressure head. Background Technology

[0002] Paper rewinding is a key post-processing step in the paper production process. It involves using a rewinding machine to cut large-diameter, wide-width base paper rolls produced by the paper machine into finished paper rolls of different widths, diameters, and lengths according to the needs of downstream customers.

[0003] The core function of this process is to correct edge deviations of the raw paper, remove paper web defects, and cut the raw paper into specifications suitable for subsequent processing or direct use, thereby improving paper utilization and product applicability. In the unwinding mechanism of existing rewinding equipment, after the raw paper roll is installed, the equipment will tilt due to uneven installation foundation. The raw paper roll will be affected by lateral force. When the raw paper roll is inserted into the expansion roller, before the expansion roller has expanded, it will be deviated by force. In addition, the uneven edges and inconsistent tension of the raw paper itself will also cause deviation, which will lead to problems such as uneven edges and uneven tension in the rewound paper. Utility Model Content

[0004] The purpose of this utility model is to provide a paper rewinding machine changing pressure head that solves the problem of offset installation of the original paper roll, allows the paper roll to be accurately positioned, and avoids uneven paper edges and uneven tension after rewinding, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A paper rewinding machine roll changing head includes a frame, a motor drive mechanism fixedly connected to the frame, an expansion roller fixedly connected to the output end of the motor drive mechanism, a hydraulic station fixedly connected to the frame near the motor drive mechanism, a main controller fixedly connected to the hydraulic station, and the motor drive mechanism and the main controller electrically connected to the main controller via cables, a plurality of bearing seats fixedly connected to one side of the frame, bushings rotatably connected between the plurality of bearing seats, a rotating shaft movably connected inside the bushings, a connecting sleeve fixedly connected to the outer side of the rotating shaft near the bushings, a pusher and a plurality of fixed plates fixedly connected to the outer side of the connecting sleeves, a pressure plate rotatably connected to one end of one of the fixed plates, a pressure roller rotatably connected between two adjacent pressure plates, a first hydraulic cylinder rotatably connected to one side of the bottom of the frame, a bracket fixedly connected to one side of the frame near the bearing seats, a second hydraulic cylinder fixedly connected to one side of the bracket, and the first hydraulic cylinder and the second hydraulic cylinder connected to the hydraulic station via hydraulic pipes.

[0007] As a further preferred embodiment of this utility model, a crank is fixedly connected to the outer side of the bushing, and one end of the crank is rotatably connected to one end of the piston rod of the first hydraulic cylinder. This allows the bushing to rotate within multiple bearing seats through the cooperation of the first hydraulic cylinder and the crank, thereby driving the rotating shaft to rotate through the bushing, and thus enabling the fixed plate and the push frame to make adaptive rotational adjustments.

[0008] As a further preferred embodiment of this utility model, multiple splines are fixedly connected inside the bushing, and multiple keyways are provided on the outer side of the rotating shaft. One side of the rotating shaft is inserted into the bushing, and the keyways are interpenetrated with the corresponding splines. After the bushing and the rotating shaft are interpenetrated with each other through the splines and keyways, it is ensured that the bushing can synchronously drive the rotating shaft to move axially, and at the same time, it also provides conditions for the radial movement of the rotating shaft within the bushing.

[0009] As a further preferred embodiment of this utility model, the pusher has a Y-shaped structure, and a connecting plate is fixedly connected to one side of the pusher. When the bushing drives the rotating shaft and the connecting sleeve to move axially, the pusher and the connecting plate will be placed on one side of the paper roll. After the rotating shaft moves horizontally and radially within the bushing, the pusher and the connecting plate can push the paper roll on the expansion roller to one side, so that the paper roll is installed in the corresponding position.

[0010] As a further preferred embodiment of this utility model, a first connecting rod is fixedly connected between the pusher and one of the fixed plates, a second connecting rod is fixedly connected between the two fixed plates, and a third connecting rod is fixedly connected between the two pressure plates. A tension spring is fixedly connected between the second connecting rod and the third connecting rod. After the bushing drives the connecting sleeve to move axially through the rotating shaft, it will drive the pressure roller to abut against the outside of the paper roll through the fixed plate and the pressure plate, thereby preventing the paper roll from unwinding due to tension changes.

[0011] As a further preferred embodiment of this utility model, the output end of the second hydraulic cylinder is rotatably connected to a connecting block, which is also fixedly connected to one side of the rotating shaft. The second hydraulic cylinder, in conjunction with the connecting block, can push and pull the rotating shaft to move horizontally and radially within the bushing.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, the second hydraulic cylinder drives the rotating shaft to move, and together with the pusher and connecting plate, pushes the paper roll to the correct position to ensure accurate positioning. At the same time, the first hydraulic cylinder rotates the rotating shaft by rotating the bushing, so that the pressure roller abuts against the outside of the paper roll under the action of the tension spring. This can prevent the paper roll from unwinding due to tension changes, and avoid problems such as uneven paper edges and uneven tension in subsequent rewinding. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the bushing and rotating shaft of this utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the second hydraulic cylinder structure of this utility model.

[0018] In the diagram: 1. Frame; 2. Motor drive mechanism; 3. Expansion roller; 4. Main controller; 5. Shaft seat; 6. Bushing; 7. Rotating shaft; 8. Connecting sleeve; 9. Push frame; 10. Fixing plate; 11. Pressure plate; 12. Pressure roller; 13. First hydraulic cylinder; 14. Crank; 15. Bracket; 16. Second hydraulic cylinder; 17. Spline; 18. Keyway; 19. Connecting plate; 20. First connecting rod; 21. Second connecting rod; 22. Third connecting rod; 23. Connecting block; 24. Hydraulic station. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-4 As shown, the present invention provides a paper rewinding machine changing pressure head, including a frame 1, a motor drive mechanism 2 fixedly connected to the frame 1, an expansion roller 3 fixedly connected to the output end of the motor drive mechanism 2, a hydraulic station 24 fixedly connected to the frame 1 near the motor drive mechanism 2, a main controller 4 fixedly connected to the hydraulic station 24, and the motor drive mechanism 2 and the main controller 4 electrically connected to the main controller 4 respectively via cables. Multiple bearing seats 5 are fixedly connected to one side of the frame 1, and bushings 6 are rotatably connected between the multiple bearing seats 5. A rotating shaft 7 is movably connected inside the bushings 6. A connecting sleeve 8 is fixedly connected to the outer side of the rotating shaft 7 near the bushing 6. A pusher 9 and multiple fixing plates 10 are fixedly connected to the outer side of the connecting sleeve 8. A pressure plate 11 is rotatably connected to one end of the fixing plate 10. A pressure roller 12 is rotatably connected between two adjacent pressure plates 11. A first hydraulic cylinder 13 is rotatably connected to one side of the bottom of the frame 1. A bracket 15 is also fixedly connected to one side of the frame 1 near the bearing 5. A second hydraulic cylinder 16 is fixedly connected to one side of the bracket 15. The first hydraulic cylinder 13 and the second hydraulic cylinder 16 are respectively connected to the hydraulic station 24 through hydraulic pipes.

[0021] like Figure 1As shown, a crank 14 is fixedly connected to the outside of the bushing 6. One end of the crank 14 is rotatably connected to one end of the piston rod of the first hydraulic cylinder 13. This allows the bushing 6 to rotate within multiple bearing seats 5 through the cooperation of the first hydraulic cylinder 13 and the crank 14. In turn, the bushing 6 drives the rotating shaft 7 to rotate, thereby enabling the fixed plate 10 and the push frame 9 to make adaptive rotational adjustments.

[0022] like Figures 1-4 As shown, multiple splines 17 are fixedly connected inside the bushing 6, and multiple keyways 18 are provided on the outer side of the rotating shaft 7. One side of the rotating shaft 7 is inserted into the bushing 6, and the keyways 18 are interpenetrated with the corresponding splines 17. After the bushing 6 and the rotating shaft 7 are interpenetrated through the splines 17 and keyways 18, it is ensured that the bushing 6 can synchronously drive the rotating shaft 7 to move axially. At the same time, it also provides conditions for the radial movement of the rotating shaft 7 within the bushing 6. The pusher 9 has a Y-shaped structure, and a connecting plate 19 is fixedly connected to one side of the pusher 9. When the bushing 6 drives the rotating shaft 7 and the connecting sleeve 8 to move axially, the pusher 9 and the connecting plate 19 will be placed on one side of the paper roll. After the rotating shaft 7 moves horizontally and radially within the bushing 6, the pusher 9 and the connecting plate 19 can push the paper roll on the expansion roller 3 to one side. The movement causes the paper roll to be installed in the corresponding position. The pusher 9 is fixedly connected to one of the fixed plates 10 with a first connecting rod 20, the two fixed plates 10 are fixedly connected with a second connecting rod 21, and the two pressure plates 11 are fixedly connected with a third connecting rod 22. A tension spring is fixedly connected between the second connecting rod 21 and the third connecting rod 22. After the bushing 6 drives the connecting sleeve 8 to move axially through the rotating shaft 7, it will drive the pressure roller 12 to abut against the outside of the paper roll through the fixed plate 10 and the pressure plate 11, thereby preventing the paper roll from unwinding due to tension changes. The output end of the second hydraulic cylinder 16 is rotatably connected to a connecting block 23, which is also fixedly connected to one side of the rotating shaft 7. The second hydraulic cylinder 16, in cooperation with the connecting block 23, can push and pull the rotating shaft 7 to move horizontally and radially within the bushing 6.

[0023] It should be noted that this utility model is a paper rewinding machine changing pressure head. Before use, the hydraulic station 24 is turned on by the main controller 4 to provide hydraulic power to the first hydraulic cylinder 13 and the second hydraulic cylinder 16. At the same time, the main controller 4 controls the motor drive mechanism 2 to be in standby mode, so as to facilitate the subsequent operation of the expansion roller 3.

[0024] After the center cylinder of the paper roll is installed onto the expansion roller 3 by a forklift or lifting equipment, the main controller 4 will command the first hydraulic cylinder 13 to start. The piston rod of the first hydraulic cylinder 13 drives the crank 14 to rotate, and the crank 14 drives the bushing 6 to rotate within multiple bearing seats 5. Since the bushing 6 has a spline 17 that cooperates with the keyway 18 on the outside of the rotating shaft 7, the rotation of the bushing 6 will drive the rotating shaft 7 to rotate axially synchronously. The rotating shaft 7 drives the fixed plate 10 and the pusher 9 to rotate through the connecting sleeve 8. When the pressure plate 11 rotates with the fixed plate 10, it will bring the pressure roller 12 between the adjacent pressure plates 11 closer to the outside of the paper roll. At the same time, the tension spring between the second connecting rod 21 and the third connecting rod 22 will generate tension, causing the pressure plate 11 to drive the pressure roller 12 to press tightly against the outside of the paper roll, thus preventing the paper roll from unwinding due to tension changes during subsequent unwinding. Simultaneously, the pusher 9... The frame 9 and connecting plate 19 are also placed on one side of the paper roll. At this time, the main controller 4 will command the second hydraulic cylinder 16 to start. The second hydraulic cylinder 16 drives the rotating shaft 7 to move horizontally and radially within the bushing 6 through the connecting block 23. When the rotating shaft 7 moves, it will move the connecting sleeve 8 synchronously. The connecting sleeve 8 will drive the push frame 9 and the fixing plate 10 to move together. As the push frame 9 moves, the connecting plate 19 will contact the offset paper roll and continuously push the paper roll to adjust its position on the expansion roller 3 until the paper roll is pushed to the correct installation position. Then, the main controller 4 controls the expansion roller 3 to expand and fix the paper roll. At this time, the piston rod of the second hydraulic cylinder 16 pushes the rotating shaft 7 to move back a certain distance within the bushing 6 through the connecting block 23, so that the rotating shaft 7 drives the push frame 9 and the connecting plate 19 to separate from the paper roll side, ensuring that the motor drive mechanism 2 drives the expansion roller 3 to drive the paper roll to rotate smoothly.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paper rewinding machine changing pressure head, characterized in that: The system includes a frame (1), on which a motor drive mechanism (2) is fixedly connected. An expansion roller (3) is fixedly connected to the output end of the motor drive mechanism (2). A hydraulic station (24) is fixedly connected to the frame (1) near the motor drive mechanism (2). A main controller (4) is fixedly connected to the hydraulic station (24). The motor drive mechanism (2) and the main controller (4) are electrically connected to the main controller (4) via cables. Multiple bearing seats (5) are fixedly connected to one side of the frame (1). A bushing (6) is rotatably connected between the multiple bearing seats (5). A rotating shaft (7) is movably connected inside the bushing (6). The outer side of the rotating shaft (7) is close to the... A connecting sleeve (8) is fixedly connected to the bushing (6). A pusher (9) and a plurality of fixed plates (10) are fixedly connected to the outside of the connecting sleeve (8). A pressure plate (11) is rotatably connected to one end of the fixed plate (10). A pressure roller (12) is rotatably connected between two adjacent pressure plates (11). A first hydraulic cylinder (13) is rotatably connected to one side of the bottom of the frame (1). A bracket (15) is also fixedly connected to one side of the frame (1) near the shaft seat (5). A second hydraulic cylinder (16) is fixedly connected to one side of the bracket (15). The first hydraulic cylinder (13) and the second hydraulic cylinder (16) are respectively connected to the hydraulic station (24) through hydraulic pipes.

2. The paper rewinding press head according to claim 1, characterized in that: A crank (14) is fixedly connected to the outside of the bushing (6), and one end of the crank (14) is rotatably connected to one end of the piston rod of the first hydraulic cylinder (13).

3. The paper rewinding press head according to claim 1, characterized in that: Multiple splines (17) are fixedly connected inside the bushing (6), and multiple keyways (18) are provided on the outside of the rotating shaft (7). One side of the rotating shaft (7) is inserted into the bushing (6), and the keyways (18) are interlocked with the corresponding splines (17).

4. The paper rewinding press head according to claim 1, characterized in that: The pusher (9) has a Y-shaped structure, and a connecting plate (19) is fixedly connected to one side of the pusher (9).

5. A paper rewinding press head according to claim 1, characterized in that: A first connecting rod (20) is fixedly connected between the pusher (9) and one of the fixed plates (10), a second connecting rod (21) is fixedly connected between the two fixed plates (10), a third connecting rod (22) is fixedly connected between the two pressure plates (11), and a tension spring is fixedly connected between the second connecting rod (21) and the third connecting rod (22).

6. The paper rewinding press head according to claim 1, characterized in that: The output end of the second hydraulic cylinder (16) is rotatably connected to a connecting block (23), which is also fixedly connected to one side of the rotating shaft (7).

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