A high-load paper feeding rack under high-speed operation

Abstract

The present invention discloses a high-load paper feeding rack under high-speed operation, comprising: a paper feeding part rack designed in two front and rear sections, a linear guide system arranged under the front section rack, and a paper feeding pressing plate and its cylinder arranged inside the front section rack. The linear guide system includes a linearly moving guide rail in the axial direction and a linearly moving guide rail in the radial direction. In the present invention, the paper feeding part rack of the rewinder is designed in two front and rear sections, and the rear section rack is directly installed on the foundation, so that the rewinder runs stably and is not prone to shaking. A linear guide system in the axial and radial directions is arranged on the bottom plate of the front section rack, so that the friction coefficient is reduced, the axial and radial movement of the paper feeding rack is stable, the damage of the actuator is reduced, and the service life of the rack is extended. The combination of the two ensures the load capacity of the rack and guarantees the stability of high-speed operation.

Description

Technical Field

[0001] The present invention relates to a paper feeding rack, and particularly to a high-load paper feeding rack under high-speed operation. Background Art

[0002] A rewinder is used to longitudinally cut the paper roll (referred to as the original paper roll) initially wound on a paper machine and rewind it into a finished paper roll with a width and tightness meeting the requirements. During the rewinding process, poor-quality paper can be removed and the broken ends can be bonded.

[0003] A rewinder consists of a paper feeding rack device, a longitudinal cutting device, a paper winding device, a hydraulic and pneumatic control system, and a drive control system. Among them, the function of the paper feeding rack is to store the paper roll and control the state of the paper roll during the rewinding and slitting operation. The paper feeding rack device consists of a frame for the original paper roll, a paper storage rack, a displacement device, an oil cylinder, a linear guide rail, a paper roll pressing plate device, etc.

[0004] Currently, the maximum diameter of the original paper roll produced by a paper machine reaches Φ3200mm, and the weight of the original paper roll is about 30 tons. The frame of the traditional rewinder paper feeding rack is divided into upper and lower parts. During operation, it needs to bear a 30-ton original paper roll, which is prone to shaking and directly affects the quality of the finished paper roll. At the bottom of the lower bracket, a guide rail with an oil groove is used, which has a large friction coefficient, resulting in hysteresis in the axial and radial movement of the paper feeding rack, frequent damage to the actuator, and a short service life of the rack.

[0005] Therefore, it is necessary to improve the existing solution. Summary of the Invention

[0006] The main technical problem to be solved by the present invention is to provide a high-load paper feeding rack under high-speed operation to overcome the above problems.

[0007] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a high-load paper feeding rack under high-speed operation, including: a front-section rack, a rear-section rack arranged at the rear side of the front-section rack, a linear guide rail system arranged below the front-section rack, and a paper pressing plate arranged inside the front-section rack. A base plate is arranged below the linear guide rail system. The linear guide rail system includes an axial displacement guide rail, an axial displacement slider, a guide rail intermediate plate, a radial displacement guide rail, and a radial displacement slider from top to bottom. An axial displacement oil cylinder and the axial displacement slider are fixedly arranged on the upper surface of the guide rail intermediate plate. The radial displacement guide rail is fixedly arranged on the lower surface of the guide rail intermediate plate. The radial displacement oil cylinder and the radial displacement slider are fixed on the base plate. A paper pressing plate shaft is arranged inside the front-section rack. The paper pressing plate is rotatably arranged on the paper pressing plate shaft. A paper pressing plate air cylinder is further arranged inside the front-section rack. The driving end of the paper pressing plate air cylinder is connected to the paper pressing plate.

[0008] Further, the front section of the frame has a front paper roll guide block, and the rear section of the frame has a rear paper roll guide block, and the front paper roll guide block and the rear paper roll guide block are at the same height.

[0009] Further, a front paper roll blocking part is provided at the front end of the front section of the frame, and a rear paper roll blocking part is provided at the rear section of the rear section of the frame.

[0010] Further, buffer pads are provided on the contact surfaces of the front paper roll blocking part and the rear paper roll blocking part.

[0011] Further, a bottom plate of the front section of the frame is provided below the front section of the frame, the axial displacement guide rail is fixed below the bottom plate of the front section of the frame, the driving end of the axial displacement oil cylinder is connected to the end face of the bottom plate of the front section of the frame, and the driving end of the radial displacement oil cylinder is connected to the end face of the guide rail intermediate plate.

[0012] Further, 2 axial displacement guide rails and 2 radial displacement guide rails are provided below the front section of the frame.

[0013] Further, the paper placing pressure plate is integrally Y-shaped, and both sides of the Y-shaped opening are respectively a paper pressing roll part and a paper unrolling roll part, and one end of the paper placing pressure plate far from the Y-shaped opening is connected to the paper placing pressure plate cylinder.

[0014] Further, buffer pads are provided on the contact surfaces of the paper pressing roll part and the paper unrolling roll part.

[0015] Further, a support point for the paper placing pressure plate cylinder is provided inside the front section of the frame, the paper placing pressure plate cylinder is arranged on the support point for the paper placing pressure plate cylinder, and the paper placing pressure plate cylinder drives and cooperates with the rotation of the paper placing pressure plate.

[0016] Further, two opposite paper placing racks are provided in the paper placing rack device of the rewinder. During rewinding, the paper roll of the base paper roll is placed on the front paper roll guide block.

[0017] The beneficial effects of a high-load paper placing rack under high-speed operation according to the present invention are as follows: The paper placing part frame of the rewinder is designed into two sections, the front and the rear. The rear section of the frame is directly installed on the foundation, so that the rewinder runs stably and is not easy to shake. An axial and radial linear guide rail system is provided on the bottom plate of the front section of the frame, so that the friction coefficient is reduced, the axial and radial movement of the paper placing rack is stable, the damage of the actuator is reduced, and the service life of the frame is extended. The combination of the two ensures the load capacity of the frame and guarantees the stability of high-speed operation. Description of the Drawings

[0018] Figure 1 It is a side view of a single paper placing rack in an embodiment.

[0019] Figure 2It is a detail drawing of the paper feeding pressure plate and its cylinder in an embodiment.

[0020] Figure 3 It is a front view of a single paper feeding rack in an embodiment.

[0021] Figure 4 It is a detail drawing of a linear guide rail system in an embodiment.

[0022] Figure 5 It is an overall structure drawing of the paper feeding rack device in an embodiment.

[0023] The markings of each component in the attached drawings are as follows: 1. Front section frame, 2. Rear section frame, 3. Linear guide rail system, 4. Base plate, 5. Paper feeding pressure plate, 6. Paper feeding pressure plate cylinder, 11. Front roll paper guide rail block, 12. Front roll paper blocking part, 13. Front section frame bottom plate, 14. Paper feeding pressure plate shaft, 15. Paper feeding pressure plate cylinder fulcrum, 21. Rear roll paper guide rail block, 22. Rear roll paper blocking part, 23. Rear section frame bottom plate, 31. Axial displacement guide rail, 32. Axial displacement slider, 33. Guide rail intermediate plate, 34. Radial displacement guide rail, 35. Radial displacement slider, 36. Axial displacement oil cylinder, 37. Radial displacement oil cylinder, 51. Pressing roll paper part, 52. Unwinding roll paper part. Specific embodiments

[0024] The following elaborates on the preferred embodiments of the present invention in conjunction with the attached drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] Please refer to Figures 1 to 4 , the embodiments of the present invention include: a front section frame 1, a rear section frame 2 provided at the rear side of the front section frame 1, a linear guide rail system 3 and a base plate 4 provided below the front section frame, a paper feeding pressure plate 5 and a paper feeding pressure plate cylinder 6 provided inside the front section frame. The front section frame 1 has a front roll paper guide rail block 11, and the rear section frame 2 has a rear roll paper guide rail block 21. The front roll paper guide rail block 11 and the rear roll paper guide rail block 21 are at the same height. When the rewinding is completed, the roll paper can smoothly retreat from the front roll paper guide rail block 11 to the rear roll paper guide rail block 21. A front roll paper blocking part 12 is provided at the front end of the front section frame 1, and a rear roll paper blocking part 22 is provided at the rear section of the rear section frame 2 to limit the retreat position of the roll paper. Buffer pads (not marked) are provided on the contact surfaces of the front roll paper blocking part 12 and the rear roll paper blocking part 22 to ensure stable contact between the roll paper and the front and rear roll paper blocking parts.

[0026] The base plate 4 is arranged below the linear guide rail system 3. The linear guide rail system 3 includes an axial displacement guide rail 31, an axial displacement slider 32, a guide rail intermediate plate 33, a radial displacement guide rail 34, and a radial displacement slider 35 from top to bottom. An axial displacement oil cylinder 36 and an axial displacement slider 32 are fixedly arranged on the upper surface of the guide rail intermediate plate 33. A radial displacement guide rail 34 is fixedly arranged on the lower surface of the guide rail intermediate plate 33. A radial displacement oil cylinder 37 and a radial displacement slider 35 are fixed on the base 4 plate. A front section frame bottom plate 13 is arranged below the front section frame 1. The axial displacement guide rail 31 is fixed below the front section frame bottom plate 13. The driving end of the axial displacement oil cylinder 36 is connected to the end face of the front section frame bottom plate 13. The driving end of the radial displacement oil cylinder 37 is connected to the end face of the guide rail intermediate plate 33. The linear guide rail system 3 provides radial and axial movement spaces for the front section frame 1, with an axial displacement of ±100 mm and a radial displacement of ±50 mm, adapting to different paper widths and paper roll spacings.

[0027] Specifically, two axial displacement guide rails and two radial displacement guide rails are arranged below the front section frame 1.

[0028] A paper feeding pressing plate shaft 14 is arranged inside the front section frame 1. The paper feeding pressing plate 5 is rotatably arranged on the paper feeding pressing plate shaft 14. A paper feeding pressing plate air cylinder fulcrum 15 and a paper feeding pressing plate air cylinder 6 are also arranged inside the front section frame 1. The paper feeding pressing plate air cylinder 6 is arranged on the paper feeding pressing plate air cylinder fulcrum 15. The driving end of the paper feeding pressing plate air cylinder 6 is connected to the paper feeding pressing plate 5. The paper feeding pressing plate air cylinder 6 drives and cooperates with the rotation of the paper feeding pressing plate 5. The paper feeding pressing plate 5 is integrally Y-shaped. The two sides of the Y-shaped opening are respectively a paper pressing roll part 51 and a paper unrolling roll part 52. One end of the paper feeding pressing plate 5 far from the Y-shaped opening is connected to the paper feeding pressing plate air cylinder 6. During rewinding, the piston rod of the paper feeding pressing plate air cylinder retracts, driving the paper feeding pressing plate to rotate clockwise, so that the paper pressing roll part presses the paper roll. After rewinding is completed, the piston rod of the paper feeding pressing plate air cylinder extends, driving the paper feeding pressing plate to rotate counterclockwise, so that the paper roll retracts to the rear paper roll guide rail block.

[0029] Specifically, buffer pads are arranged on the contact surfaces of the paper pressing roll part 51 and the paper unrolling roll part 52 to ensure the stability during paper roll clamping and when retracting instantly.

[0030] Please refer to Figure 5 , there are two opposite paper feeding racks in the paper feeding rack device of the rewinder. The paper feeding racks are both installed on the paper feeding rack base. The rear section frame as a whole is directly installed on the paper feeding rack base. The front section frame is indirectly installed on the paper feeding rack base through the linear guide rail system. During rewinding, the original paper roll is hoisted between the two paper feeding racks. The two ends of the paper roll of the original paper roll are placed on the front paper roll guide rail blocks of the paper feeding racks. The driving side of the paper roll is connected with a toothed coupling. A protective facility is arranged on the operating side of the paper roll. An anti-mis-hoisting device is also arranged on the driving side paper feeding rack.

[0031] Specifically, in this embodiment, the paper reel stand device bears the original paper reel of 30 tons and operates at a high speed of 5600 / 2000 m / min. The axial and radial displacements of the paper reel stand can be carried out stably.

[0032] The beneficial effects of a high-load paper reel stand under high-speed operation in the present invention are as follows: The paper feeding part frame of the rewinder is designed into two sections, the rear section frame is directly installed on the foundation, so that the rewinder runs stably and is not easy to shake. A linear guide system in the axial and radial directions is arranged on the bottom plate of the front section frame, so that the friction coefficient is reduced, the axial and radial movements of the paper reel stand are stable, the damage of the actuator is reduced, and the service life of the frame is extended. The combination of the two ensures the load capacity of the frame and guarantees the stability of high-speed operation.

[0033] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A high-load paper feeding rack under high-speed operation, characterized in that, Including: The front section frame, the rear section frame arranged at the rear side of the front section frame, the linear guide rail system arranged below the front section frame, and the paper feeding pressing plate arranged inside the front section frame; A base plate is arranged below the linear guide rail system. The linear guide rail system includes an axial displacement guide rail, an axial displacement slider, a guide rail intermediate plate, a radial displacement guide rail, and a radial displacement slider from top to bottom. An axial displacement oil cylinder and the axial displacement slider are fixedly arranged on the upper surface of the guide rail intermediate plate. The radial displacement guide rail is fixedly arranged on the lower surface of the guide rail intermediate plate. The radial displacement oil cylinder and the radial displacement slider are fixed on the base plate; A paper feeding pressing plate shaft is arranged inside the front section frame. The paper feeding pressing plate is rotatably arranged on the paper feeding pressing plate shaft. A paper feeding pressing plate air cylinder is also arranged inside the front section frame. The driving end of the paper feeding pressing plate air cylinder is connected to the paper feeding pressing plate; The paper feeding pressing plate is integrally Y-shaped. The two sides of the Y-shaped opening are respectively a pressing reel paper roller part and a rewinding reel paper roller part. One end of the paper feeding pressing plate far from the Y-shaped opening is connected to the paper feeding pressing plate air cylinder; A front reel paper roller blocking part is arranged at the front end of the front section frame. A rear reel paper roller blocking part is arranged at the rear section of the rear section frame. During rewinding, the piston rod of the paper feeding pressing plate air cylinder retracts, driving the paper feeding pressing plate to rotate clockwise, so that the pressing reel paper roller part presses the reel paper roller. After rewinding is completed, the piston rod of the paper feeding pressing plate air cylinder extends, driving the paper feeding pressing plate to rotate counterclockwise, so that the reel paper roller retracts.

2. The high-load paper feeding rack under high-speed operation according to claim 1, characterized in that The front section frame has a front reel paper roller guide rail block, and the rear section frame has a rear reel paper roller guide rail block. The front reel paper roller guide rail block and the rear reel paper roller guide rail block are at the same height.

3. A high-load paper feeding rack under high-speed operation according to claim 1, characterized in that, Buffer pads are arranged on the contact surfaces of both the front reel paper roller blocking part and the rear reel paper roller blocking part.

4. A high-load paper feeding rack under high-speed operation according to claim 1, characterized in that A front section frame bottom plate is arranged below the front section frame. The axial displacement guide rail is fixed below the front section frame bottom plate. The driving end of the axial displacement oil cylinder is connected to the end face of the front section frame bottom plate. The driving end of the radial displacement oil cylinder is connected to the end face of the guide rail intermediate plate.

5. A high-load paper feeding rack under high-speed operation according to claim 1, characterized in that 2 axial displacement guide rails and 2 radial displacement guide rails are arranged below the front section frame.

6. The high-load paper feeding rack under high-speed operation according to claim 1, characterized in that, Buffer pads are arranged on the contact surfaces of both the pressing reel paper roller part and the rewinding reel paper roller part.

7. A high-load paper feeding rack under high-speed operation according to claim 1, characterized in that A paper feeding pressing plate air cylinder support point is arranged inside the front section frame. The paper feeding pressing plate air cylinder is arranged on the paper feeding pressing plate air cylinder support point. The paper feeding pressing plate air cylinder drives and cooperates with the rotation of the paper feeding pressing plate.

8. A high-load paper feeding rack under high-speed operation according to claim 2, characterized in that, Two opposite paper feeding racks are arranged in the paper feeding rack device of the rewinder. During rewinding, the reel paper roller of the base paper roll is placed on the front reel paper roller guide rail block.

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