Rewinder compression roller device capable of automatically adjusting pressure
By introducing an automatic pressure-adjusting rewinder pressure roller device into the rewinder, the problem of uneven pressure on the pressure rollers was solved, achieving pressure uniformity and stability in the rewinding process, and improving winding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-20
AI Technical Summary
Uneven pressure distribution of the pressure rollers in the tipping paper rewinding machine leads to rewinding quality problems, including paper surface dents, wrinkles, core deformation, interlayer slippage, and loose rolls, which affect product quality and equipment lifespan.
The rewinder pressure roller device with automatic pressure adjustment includes a roller group system, a tension detection unit, a pneumatic adjustment mechanism, and a multi-stage rewinding shaft pressure mechanism. It monitors paper tension through a tension sensor, and uses a cylinder to drive tension adjustment and multi-stage pressure adjustment to achieve dynamic pressure uniformity.
It enables precise control of pressure during the rewinding process, improving winding quality and production efficiency, adapting to different materials and processes, avoiding roll shape defects and equipment wear caused by uneven pressure, and improving product qualification rate and equipment service life.
Smart Images
Figure CN224014979U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of rewinding equipment technical field, specifically a kind of rewinding machine pressure roller device of automatic pressure adjustment. BACKGROUND
[0002] The tipping paper rewinder is a key equipment for processing tipping paper in the tobacco industry, mainly used for slitting and rewinding of tipping paper, i.e., cutting a large specification of tipping paper mother roll into multiple narrow small rolls to meet the precise requirements of paper width and diameter for subsequent production, and then ensuring the paper winding to be tight and flat through high-precision rewinding process to avoid looseness or wrinkles and improve the stability of subsequent processing. In addition, the rewinder can also adjust the tension in real time during slitting and rewinding to prevent the paper from breaking due to excessive tension or relaxing due to insufficient tension, thus ensuring product quality. Meanwhile, the surface defects and edge neatness of the paper can be detected through online detection devices during slitting and rewinding to ensure that the rewound tipping paper meets the quality standards.
[0003] Through the above functions, the tipping paper rewinder ensures efficient and accurate slitting and winding of tipping paper in the tobacco production process, providing high-quality raw material support for subsequent filter processing and cigarette packaging.
[0004] However, in actual application, the tipping paper rewinder also has certain problems, one of which is uneven pressure distribution of the pressure roller, which is one of the important reasons for rewinding quality problems.
[0005] Excessive local pressure of the pressure roller causes the wound paper in that area to be excessively compacted, the core to be too tight, and the surface of the set paper to be pressed with indentations, wrinkles, or thinning, especially for thin or surface-sensitive tipping paper, which affects the appearance quality of the paper, leading to defects in the printing or packaging process and reducing product qualification rate. In areas with insufficient pressure, the wound paper is loose, the interlayer friction is insufficient, the stress distribution in the reel is uneven, the core is prone to deformation and interlayer sliding, and in severe cases, the reel is loose or cracked, affecting subsequent processing and use. Secondly, when the pressure difference between the two ends of the pressure roller is large, the reel is unevenly stressed on both sides, and during winding, it is prone to shift to the side with smaller pressure, causing the reel end face to be uneven and the edges to be uneven, and even forming an oval-shaped roll shape, increasing the cutting difficulty after rewinding and causing material waste. Uneven pressure of the pressure roller also causes accelerated wear of the roller surface, especially in areas with concentrated pressure, shortening the service life of the pressure roller and increasing equipment maintenance costs. Meanwhile, the debris generated by wear may contaminate the paper, further affecting product quality.
[0006] Therefore, the uneven overall pressure distribution of the compression roller is a common problem of the tipping paper rewinding machine, and the core influence is to destroy the uniformity and stability of the winding process, and then cause a chain reaction of roll shape defects, paper damage, equipment wear and tear and the like. To solve this problem, the equipment calibration, pressure system optimization, material adaptation and operation specification should be started from many aspects to ensure the winding quality and production efficiency. SUMMARY
[0007] To solve the various problems caused by uneven pressure distribution of the compression roller of the existing tipping rewinding machine, the utility model provides a rewinding machine compression roller device of automatic pressure adjustment, which sets automatic pressure adjustment mechanism at the corresponding position of the rewinding shaft of the rewinding machine, realizes dynamic pressure adjustment and continuous and stable pressure application, and avoids various problems of the wound paper caused by uneven pressure.
[0008] The application adopts the following technical scheme: a rewinding machine compression roller device of automatic pressure adjustment is installed on the main body 1 of the rewinding machine rack, characterized by comprising a roller group system, a tension detection unit, a pneumatic adjustment mechanism and a multi-section rewinding shaft pressure mechanism.
[0009] The roller group system comprises a rewinding shaft 2, a guide roller 3 and an auxiliary roller 4; the rewinding shaft 2 winds the processing material, the shaft body is fixed to the main body 1 of the rack through a bearing seat, and a motor drives rotation to wind the material; the guide roller 3 and the auxiliary roller 4 are also installed on the main body 1 of the rewinding machine rack, are distributed along the material running direction, are provided with bearing seats at the bottom of the roller shaft, and are wrapped with a grid-shaped metal anti-skid layer on the surface of the roller shaft;
[0010] The tension detection unit is integrated in the roller group system, a tension sensor is installed on the side surface of part of the roller shaft through a support, is connected to a control system through an electric wire, monitors the tension change of the material, and comprises a separately arranged tension adjustment roller 5;
[0011] The pneumatic adjustment mechanism comprises a pneumatic cylinder arranged in the rack and connected with the bearing seat of the tension adjustment roller 5, when the tension sensor feeds back abnormal data, the pneumatic cylinder drives the tension adjustment roller 5 to move up and down, and dynamically adjusts the tension degree of the material;
[0012] The multi-section rewinding shaft pressure mechanism is specifically installed below the side of the rewinding shaft 2, and has a structure including a sliding rail 6 fixed to the rewinding machine frame body 1, a middle line of the sliding rail 6 being perpendicular to the axis of the rewinding shaft 2; a sliding frame 7 is arranged on the sliding rail 6, the sliding frame 7 is in a whole "convex" shape, a support plate 8 is fixed to a front end convex position of the sliding frame 7, the length of the support plate 8 is consistent with the length of the rewinding shaft 2, a plurality of mounting holes 9 are arranged on the support plate 8, and the end faces of the mounting holes 9 are opposite to the circumferential surface of the rewinding shaft 2; the whole sliding frame 7 is clamped on the sliding rail, a pressure sensor 10 is arranged at the tail of the sliding frame 7, and the pressure sensor 10 is directly connected with the extension rod of a sliding cylinder 11; the extension rod drags the sliding frame 7 to move on the sliding rail, and the whole pressure is applied; the pressure sensor 10 simultaneously detects the pressure borne by the sliding frame 7; in addition, a pneumatic brake 12 is arranged on the front surface of the sliding frame 7, and the position of the sliding frame 7 on the sliding rail is controlled and positioned.
[0013] In order to prevent the deformation of the material reel along the axis of the rewinding shaft 2 caused by the uniformity of the winding material or the transverse tension fluctuation of the winding material, on the basis of the whole pressure applied to the material reel by the sliding frame 7, a multi-section rewinding shaft pressure mechanism for independently applying pressure to the reel in sections is added, the multi-section rewinding shaft pressure mechanism is installed on the support plate 8 of the sliding frame 7, and includes roller bodies divided into a plurality of independent pressure adjusting sections 13 along the axis, each roller body is connected with an independent pressure adjusting device 15 installed on the support plate 8 through an independent adjusting support 14; a pressure sensor, the pressure adjusting device 15 and a controller adjust the pressure value of the corresponding pressure section, and a plurality of groups of the same mechanism jointly act, and the multi-section rewinding shaft pressure mechanism forms a segmented controllable pressure distribution in the radial direction.
[0014] Preferably, the pressure adjusting device 15 is any one of a hydraulic cylinder, an air cylinder or an electric push rod, the whole pressure adjusting device 15 is fixed in the mounting hole 9 on the support plate 8, the output end is directly connected with the opposite adjusting support 14, and the adjusting support 14 is movably connected with the shaft hole at the two ends of the independent pressure adjusting section 13 roller body.
[0015] Preferably, the pressure sensor is arranged on the roller surface or in the roller of each independent pressure adjusting section 13, the actual pressure value of the section is monitored in real time, the pressure data is fed back to the controller, and the controller controls each pressure adjusting device 15 in real time based on the pressure data.
[0016] The controller is provided with a pressure preset module, the pressure preset module stores pressure distribution curves for different material types or rewinding processes, and the controller can automatically match and adjust the pressure value of each pressure adjusting section according to the selected process parameters.
[0017] Preferably, the independent pressure adjusting section 13 roller body is provided with an elastic buffer layer on the outer surface, the uniformity of pressure transmission is enhanced, and the surface of the rewinding material is protected.
[0018] Preferably, the support plate 8 is provided with a plurality of sliding inner cores 16 to provide mounting holes 9, and different sliding inner cores 16 are replaced to adjust the distance between the mounting holes 9; at the same time, the pressure regulating device 15 and the matching regulating bracket 14 installed on the support plate 8 are replaceable structures and are replaced according to the width of the material reel set on the rewinding shaft 2, so as to ensure that the rollers of different combinations of independent pressure regulating sections 13 completely cover and contact the entire material reel. Beneficial effects
[0019] This application designs the pressure roller of the rewinder as a two-stage structure. The first stage adopts a track-guided, overall pressure application method to provide a basic and constant continuous pressure and avoid excessive local pressure. The second stage adopts a multi-segment independent and controllable structure, combined with the pressure regulating device 15 and the intelligent control system, to achieve fine control of pressure during the rewinding process.
[0020] In the second-stage structure, the multi-segment rewinding shaft pressure mechanism can divide the rewinding shaft 2 into multiple independent pressure adjustment segments. Each adjustment segment can independently adjust the pressure according to the fluctuation of the material's transverse tension and the material's width, thickness, or tension distribution, thereby avoiding axial deformation of the material reel and ensuring the flatness and quality of the reel. This solves the problems of uneven pressure and poor adaptability of traditional single-segment pressure rollers, and is especially suitable for rewinding pressure-sensitive materials such as films, paper, and non-woven fabrics, which can significantly improve winding quality and production efficiency.
[0021] In addition, the support plate 8 in this application uses a sliding inner core 16 to set mounting holes 9, and different sliding inner cores 16 can be replaced to adjust the distance between each mounting hole 9; at the same time, the pressure regulating device 15 and the matching regulating bracket 14 installed on the support plate 8 are replaceable structures, which can be replaced according to the width of the material reel on the rewinding shaft 2, ensuring that the rollers of different combinations of independent pressure regulating sections 13 completely cover and contact the entire material reel, thereby enhancing the adaptability of the equipment to different materials and processes. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the rewinder pressure roller device.
[0023] Figure 2 This is a structural schematic diagram of the multi-segment rewinding shaft pressure mechanism.
[0024] Figure 3 yes Figure 2 A magnified view of a portion of the image.
[0025] Figure 4 This is a schematic diagram of the support plate mechanism.
[0026] In the figure: rewinding machine frame main body 1, rewinding shaft 2, guide roller 3, auxiliary roller 4, tension adjusting roller 5, sliding rail 6, sliding carriage 7, support plate 8, mounting hole 9, pressure sensor 10, sliding cylinder 11, pneumatic brake 12, independent pressure adjusting section 13, adjusting support 14, pressure adjusting device 15, sliding inner core 16. DETAILED DESCRIPTION
[0027] The utility model is further explained below in combination with the drawings and examples.
[0028] The automatic pressure-adjusting rewinding machine pressure roller device described in the example has the structure as shown in the figure, comprising a roller group system, a tension detection unit, a pneumatic adjusting mechanism and a multi-section rewinding shaft pressure mechanism. Figures 1-4
[0029] The frame main body 1 adopts a high-strength metal frame structure, the bottom surface is provided with a shockproof device, the top is provided with the rewinding shaft 2 and the guide roller 3 and the auxiliary roller 4, and the frame interior is integrated with a pneumatic pipeline and an electric control system.
[0030] The two ends of the rewinding shaft 2 are fixed to the frame through conical roller bearings and are driven by a servo motor; the surfaces of the guide roller 3 and the auxiliary roller 4 are wrapped with a 0.5mm-thick grid-shaped metal anti-skid layer, a tension sensor is installed at the bottom of the bearing seat to monitor the material tension in real time; and the pneumatic adjusting mechanism is rigidly connected with the bearing seat of the separately arranged tension adjusting roller 5 through a cylinder arranged in the frame interior, the surface of the roller body is a silica gel layer and the height is adjusted through the cylinder drive.
[0031] The multi-section rewinding shaft pressure mechanism has a sliding rail 6 with a length of 800mm, adopts a linear guide rail, the installation angle is 45° with the axis of the rewinding shaft 2; the sliding rail 6 is clamped with a sliding carriage 7, the tail of the sliding carriage 7 is provided with a pressure sensor 10 and is connected with the telescopic rod of a sliding cylinder 11.
[0032] The top of the sliding carriage 7 is provided with a support plate 8, which adopts a modular design and adjusts the spacing of the mounting holes 9 through a sliding inner core 16; the independent pressure adjusting section 13 is divided into three sections, each section of the roller body surface is covered with an elastic polyurethane layer; the pressure adjusting device 15 adjusts the pressure by driving an electric push rod.
[0033] The working process of the rewinding machine pressure roller device described in the example is as follows:
[0034] ① Initial setting
[0035] According to the size of the tipping paper, the corresponding sliding inner core 16 is installed to the support plate 8 to ensure that the three independent pressure adjusting sections 13 cover the entire width of the reel; the pressure value is preset through the controller, the pressure of the middle section is large and the pressure of the two sides is small;
[0036] ② Rewinding process
[0037] The tipping paper enters the rewinding shaft 2 through the guide roller 3 and the auxiliary roller 4, and the tension sensor monitors the tension in real time. When the tension deviation exceeds ±5%, the pneumatic adjusting mechanism drives the tension adjusting roller 5 to adjust the tension. The multi-section pressure mechanism provides the basic pressure through the sliding cylinder 11, and the pneumatic brake 12 locks the position of the sliding carriage 7. At the same time, each section of the pressure adjusting device 15 independently adjusts according to the preset pressure value: the pressure sensor feeds back data to the controller every 0.5 seconds, and the controller dynamically adjusts the electric push rod stroke through the corresponding algorithm, and the pressure control accuracy is ±0.05 MPa.
[0038] The pressure of the rewinding machine pressure roller device is uniform, the end face flatness error of the tipping paper reel is small, and the overall roundness of the reel is high.
Claims
1. A rewinder pressure roller device with automatic pressure adjustment, installed on the main body (1) of the rewinder frame, characterized in that, It includes a roll group system, a tension detection unit, a pneumatic adjustment mechanism, and a multi-segment rewinding shaft pressure mechanism; The roll group system includes a rewinding shaft (2), a guide roll (3), and an auxiliary roll (4); the rewinding shaft (2) winds the processing material, and the shaft body is fixed to the frame body (1) through a bearing seat, and the motor drives the rotation for material winding; the guide roll (3) and the auxiliary roll (4) are also installed on the frame body (1) of the rewinder, distributed along the material traveling direction, with a bearing seat at the bottom of the roll shaft, and the surface of the roll shaft is wrapped with a grid-shaped metal anti-slip layer; The tension detection unit is integrated in the roll group system, and a tension sensor is installed on the side of some roll shafts through a bracket, connected to the control system through wires, and monitors the change of material tension, including a separately provided tension adjustment roll (5); The pneumatic adjustment mechanism includes a cylinder arranged in the frame, connected to the bearing seat of the tension adjustment roll (5). When the data feedback by the tension sensor is abnormal, the cylinder drives the tension adjustment roll (5) to move up and down to dynamically adjust the material tension degree; The multi-segment rewinding shaft pressure mechanism is specifically installed under the side of the rewinding shaft (2). Its structure includes a sliding track (6) fixed to the frame body (1) of the rewinder, and the midline of the sliding track (6) is perpendicular to the axis of the rewinding shaft (2); a sliding frame (7) is arranged on the sliding track (6), and the sliding frame (7) is integrally in a "convex" shape. A support plate (8) is fixed on the protruding part at the front end. The length of the support plate (8) is the same as the length of the rewinding shaft (2). A number of mounting holes (9) are provided on the support plate (8), and the end faces of the mounting holes (9) face the circumferential surface of the rewinding shaft (2). An independent pressure adjustment device (15) is arranged in the mounting holes (9), and is connected to the roll body of the independent pressure adjustment section (13) through an adjustment bracket (14) respectively. The pressure sensor, the pressure adjustment device (15), and the controller adjust the pressure value of the corresponding pressure section to form a segmented controllable pressure distribution; The whole of the sliding frame (7) is clamped on the sliding track, and a pressure sensor (10) is arranged at its tail, and is directly connected to the telescopic rod of the sliding cylinder (11). The telescopic rod pulls the sliding frame (7) to move on the sliding track to apply an overall pressure, and the pressure sensor (10) simultaneously detects the pressure received by the sliding frame (7); in addition, a pneumatic brake (12) is arranged on the front of the sliding frame (7) to control the position of the sliding frame (7) on the sliding track and position it.
2. The rewinder pressure roller device with automatic pressure adjustment according to claim 1, characterized in that, The pressure adjustment device (15) is any one of a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. Its whole is fixed in the mounting hole (9) on the support plate (8), and the output end is directly connected to the opposite adjustment bracket (14), and the adjustment bracket (14) is movably connected to the shaft holes at both ends of the roll body of the independent pressure adjustment section (13).
3. The rewinder pressure roller device with automatic pressure adjustment according to claim 1, characterized in that, The pressure sensor is arranged on the roll surface or inside each independent pressure adjustment section (13) to monitor the actual pressure value of this section in real time, and feeds back the pressure data to the controller, and the controller performs real-time control on each pressure adjustment device (15) based on the pressure data.
4. The rewinder pressure roller device with automatic pressure adjustment according to claim 3, characterized in that, The controller has a built-in pressure preset module, which stores pressure distribution curves for different material types or rewinding processes.
5. The rewinder pressure roller device with automatic pressure adjustment according to claim 1, characterized in that, The outer surface of the roller of the independent pressure regulating section (13) is provided with an elastic buffer layer.
6. The rewinder pressure roller device with automatic pressure adjustment according to claim 1, characterized in that, The support plate (8) uses a sliding inner core (16) to set the mounting holes (9). Different sliding inner cores (16) can be replaced to adjust the distance between the mounting holes (9). Meanwhile, the pressure regulating device (15) and the matching regulating bracket (14) installed on the support plate (8) are replaceable.