Auxiliary reel-up for a paper machine
By designing a dedicated carrying trolley and paper pressing mechanism, automated paper pressing and paper roll splicing are achieved, solving the problems of large errors and safety hazards in the paper machine's winding section, and improving the accuracy and safety of paper roll splicing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GOLD EAST PAPER JIANGSU
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-24
AI Technical Summary
The existing paper machine winding section has large errors and safety hazards when lifting paper rolls, and the manual paper tail pressing operation is unstable, affecting the quality and safety of the paper rolls.
The design incorporates a dedicated trolley and paper pressing mechanism, including a liftable support platform, a cylinder-driven swing arm, and a pressure plate, to automate paper pressing and roll splicing, eliminating the need for manual operation.
It improves the accuracy and safety of paper roll receiving, reduces damage to the lead screw and worm gear, lowers safety risks, and enhances the safety of operators and the stability of paper roll quality.
Smart Images
Figure CN224547606U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of papermaking machinery and equipment, specifically to an auxiliary unwinding device for a paper machine. Background Technology
[0002] A coating machine is a production equipment used to produce coated paper. Taking a thermal coating machine as an example, its working principle is as follows: thermal coating is applied to the surface of the paper, and then the heat energy from a heating head or printer causes a color-changing reaction, thus achieving a printing effect. Its main coating principle is to evenly apply the thermal coating to the paper surface through methods such as roller coating, spraying, or scraping, and then dry or cure it to form a thermal layer. When the printer or fax machine applies heat energy, the thermal coating undergoes a color-changing reaction, forming the printed effect of text, images, etc. The paper machine's winding section is centrally wound, with automatic paper feeding, and uses a key-type air shaft. A 3-inch or 6-inch chuck is installed at the shaft end for easy loading and unloading. The upper and lower chucks slide by a screw-driven turbine mechanism.
[0003] Currently, the winding section has two defects: 1) The overhead crane directly lifts the paper roll. When the crane hooks onto the steel roller, it exerts an upward or downward force on the roller. This force can only be observed visually by the crane operator, inevitably leading to errors. Larger errors result in greater stress, which is transmitted through the chuck to the screw worm gear assembly, easily causing the screw worm gear to bend, jam, or become unusable. This is a design flaw. 2) Before the paper roll breaks (before it stops rotating), the paper tail needs to be manually held down. As is well known, personnel should be prohibited from approaching or touching the paper roll while it is rotating, otherwise, there is a huge safety hazard. Moreover, relying on manual pressure on the paper tail introduces many objective variables, causing instability in the quality of the paper roll, which is less reliable and stable than using automated equipment. Utility Model Content
[0004] This application provides an auxiliary unwinding device for a paper machine, the auxiliary unwinding device comprising:
[0005] A carrying trolley, the top of which is provided with a support platform for placing paper rolls;
[0006] The paper pressing mechanism includes a support beam, a swing arm, a drive unit, and a pressure plate. One end of the support beam is fixedly connected to the carrying trolley, and the other end is hinged to the swing arm. The pressure plate is connected to the swing arm. The drive unit is used to drive the swing arm to rotate relative to the support beam, thereby causing the pressure plate to press against the outer surface of the paper roll.
[0007] In some alternative embodiments, the drive unit is a cylinder, the cylinder body of which is connected to the support beam, and the piston rod of which is connected to the rocker arm.
[0008] In some alternative embodiments, the pressure plate and the swing arm are connected by a connecting assembly for adjusting the angle of the pressure plate relative to the swing arm.
[0009] In some optional embodiments, the connecting assembly includes a fixing member, a plurality of pins, and springs; the fixing member is fixedly connected to the rocker arm, the two ends of the pins are respectively connected to the fixing member and the pressure plate, and the springs are correspondingly sleeved on the pins and located between the pressure plate and the fixing member.
[0010] In some alternative embodiments, the fastener includes an integral sleeve and a connecting plate. The sleeve is fitted onto the rocker arm and fixedly connected to it. A plurality of pins are respectively connected to the connecting plate, and the two ends of the spring abut against the connecting plate and the pressure plate, respectively.
[0011] In some alternative embodiments, the pressure plate and the swing arm are connected by multiple sets of the connecting components.
[0012] In some optional embodiments, the support platform of the carrying trolley is a liftable structure and is equipped with a pressure sensor. When the support platform contacts the paper roll, the lifting structure stops rising.
[0013] In some alternative embodiments, the top surface of the support platform is provided with an arc-shaped groove or a V-shaped groove.
[0014] In some optional embodiments, the paper pressing mechanism further includes a swing arm adjustment unit for adjusting the maximum swing angle of the swing arm under the drive unit.
[0015] In some optional embodiments, the rocker arm adjustment unit includes a slide rail, a slider, a connecting rod, and an adjustment block; the slide rail is fixed to the side of the support beam, the adjustment block is sleeved on the rocker arm and can slide along the axis of the rocker arm, the two sides of the adjustment block are respectively hinged to the piston rod and the connecting rod, and the other end of the connecting rod is hinged to the slider. When the maximum swing angle of the rocker arm is adjusted, a pin is inserted into the slider to fix the relative position of the slider and the slide rail.
[0016] The paper machine auxiliary unwinding device provided in this application embodiment firstly features a dedicated carrying trolley that can move back and forth, and a paper-supporting platform that can be raised and lowered. Secondly, it has a dedicated paper-pressing mechanism integrated on the carrying trolley, which can operate on the paper roll. The use of this auxiliary unwinding device can completely solve problems such as screw stress, personnel safety, and fluctuations in paper pressing quality. It can realize automated paper pressing and paper roll connection, and the operation area does not require personnel to enter, thus improving the safety of operators. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of the auxiliary unwinding device of the paper machine of this application and the paper roll pressing device (i.e., the unfolded state of the paper pressing mechanism);
[0019] Figure 2 yes Figure 1 A schematic diagram of the auxiliary unwinding device and the paper roll support state (i.e., the retracted state of the paper pressing mechanism) in the embodiment;
[0020] Figure 3 This is a schematic diagram of the paper pressing mechanism in the embodiments of this application;
[0021] Figure 4 yes Figure 3 A schematic diagram of the paper pressing mechanism from another perspective in the embodiment;
[0022] Figure 5 yes Figure 4 A partial structural diagram of the paper pressing mechanism in the embodiment;
[0023] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point A in the middle. Detailed Implementation
[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.
[0025] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.
[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0027] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the auxiliary unwinding device of the paper machine of this application, which cooperates with the paper roll pressing mechanism (i.e., the unfolded state of the pressing mechanism). Figure 2 yes Figure 1 The embodiment shows a schematic diagram of the auxiliary unwinding device and the paper roll support state (i.e., the retracted state of the paper pressing mechanism); the auxiliary unwinding device in this embodiment includes a carrying trolley 100 and a paper pressing mechanism 200.
[0028] Specifically, the top of the carrying trolley 100 is provided with a support platform 110 for placing the paper roll. The support platform 110 of the carrying trolley 100 can be a liftable structure and is equipped with a pressure sensor (not shown in the figure). When the support platform 110 contacts the paper roll 88 ( Figure 2 In the middle state, the lifting structure stops its upward movement, causing the core 881 of the paper roll 88 to separate from the paper machine. The entire paper roll 88 is placed on the carrying trolley 100, which can move to transport the paper roll 88 away. Optionally, the top surface of the support platform 110 is provided with an arc-shaped groove or a V-shaped groove 111 for carrying the paper roll 88.
[0029] Please refer to the following: Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the paper pressing mechanism in an embodiment of this application. Figure 4 yes Figure 3 A schematic diagram of the paper pressing mechanism from another perspective in the embodiment shows that the paper pressing mechanism 200 includes: a support beam 210, a swing rod 220, a drive unit 230, and a pressure plate 240. The support beam 210 can be a square steel or I-beam structure. One end of the support beam 210 is fixedly connected to the carrying trolley 100, and the other end is hinged to the swing rod 220. The pressure plate 240 is connected to the swing rod 220. The drive unit 230 is used to drive the swing rod 220 to rotate relative to the support beam 210, thereby causing the pressure plate 240 to press against the outer surface of the paper roll 88. Figure 1 (Mid-state).
[0030] Optionally, the drive unit 230 in this embodiment can be a cylinder. The cylinder body 231 is connected to the support beam 210 via a fixing plate 201, and the piston rod 232 of the cylinder is hinged to the rocker arm 220. Of course, in some other embodiments, the drive unit 230 can also be other structures, such as a linear motor, a hydraulic cylinder, etc. The detailed features of this part are within the understanding of those skilled in the art and will not be described in detail here.
[0031] Optionally, the paper pressing mechanism 200 in this embodiment further includes a swing arm adjustment unit 250, which is used to adjust the maximum swing angle of the swing arm 220 under the drive of the drive unit 230. The rocker arm adjustment unit 250 includes a slide rail 251, a slider 252, a connecting rod 253, and an adjustment block 254. The slide rail 251 is fixed to the side of the support beam 210. The adjustment block 254 is sleeved on the rocker arm 220 and can slide along the axis of the rocker arm 220. The two sides of the adjustment block 254 are respectively hinged to the piston rod 232 and the connecting rod 253. The other end of the connecting rod 253 is hinged to the slider 254. The slider 254 cooperates with the slide rail 251 and can slide along the slide rail 251. When the maximum swing angle of the rocker arm 220 is adjusted, a pin (not shown in the figure) is inserted into the slider 252 to fix the relative position of the slider 252 and the slide rail 251, that is, to fix the maximum swing angle of the rocker arm 220 relative to the support beam 210.
[0032] Please refer to the following: Figure 5 and Figure 6 , Figure 5 yes Figure 4 A partial structural diagram of the paper pressing mechanism in the embodiment. Figure 6 yes Figure 5The enlarged structural diagram at point A shows that, in this embodiment, the pressure plate 240 and the swing rod 220 are connected by a connecting component 260. The connecting component 260 is used to adjust the angle of the pressure plate 240 relative to the swing rod 220, so that when the pressure plate 240 is pressed with the paper roll 88, the angle of the pressure plate 240 relative to the swing rod 220 can be adjusted at a small angle, reducing damage to the paper roll 88 and improving the flexibility of the pressure plate 240.
[0033] Optionally, the pressure plate 240 and the swing arm 220 can be connected by multiple sets of connecting components 260, not limited to the three sets shown in the figure of this embodiment. Each connecting component 260 includes a fixing member 261, multiple pins 262 and a spring 263; the fixing member 261 is fixedly connected to the swing arm 220, the two ends of the pins 262 are respectively connected to the fixing member 261 and the pressure plate 240, and the springs 263 are correspondingly sleeved on the pins 262 and located between the pressure plate 240 and the fixing member 261, so that the pressure plate 240 can swing relative to the fixing member 261.
[0034] The fastener 261 includes an integral sleeve 2611 and a connecting plate 2612. The sleeve 2611 is fitted onto the rocker arm 220 and fixedly connected to the rocker arm 220. Multiple pins 262 are respectively connected to the connecting plate 2612. The two ends of the spring 263 abut against the connecting plate 2612 and the pressure plate 240 respectively.
[0035] The paper machine auxiliary unwinding device provided in this application embodiment firstly features a dedicated carrying trolley that can move back and forth, and a paper-supporting platform that can be raised and lowered. Secondly, it has a dedicated paper-pressing mechanism integrated on the carrying trolley, which can operate on the paper roll. The use of this auxiliary unwinding device can completely solve problems such as screw stress, personnel safety, and fluctuations in paper pressing quality. It can realize automated paper pressing and paper roll connection, and the operation area does not require personnel to enter, thus improving the safety of operators.
[0036] Based on long-term use and maintenance, we accurately identified the equipment's pain points, meticulously organized a professional team, and coordinated with all parties through continuous exploration, ultimately leading to successful development. It is fully localized, with the following advantages: 1. No personnel are required to enter the operating area, significantly improving safety. 2. Paper roll tailing is reduced by more than 5%. 3. The service life of the chuck winding sliding screw worm gear is extended by 20%. 4. The design extensively adopts domestic standards, resulting in lower component costs.
[0037] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.
Claims
1. An auxiliary unwinding device for a paper machine, characterized in that, The auxiliary unwinding device includes: A carrying trolley, the top of which is provided with a support platform for placing paper rolls; The paper pressing mechanism includes a support beam, a swing arm, a drive unit, and a pressure plate. One end of the support beam is fixedly connected to the carrying trolley, and the other end is hinged to the swing arm. The pressure plate is connected to the swing arm. The drive unit is used to drive the swing arm to rotate relative to the support beam, thereby causing the pressure plate to press against the outer surface of the paper roll.
2. The auxiliary unwinding device according to claim 1, characterized in that, The drive unit is a cylinder, the cylinder body is connected to the support beam, and the piston rod of the cylinder is connected to the rocker arm.
3. The auxiliary unwinding device according to claim 1, characterized in that, The pressure plate and the swing arm are connected by a connecting assembly, which is used to adjust the angle of the pressure plate relative to the swing arm.
4. The auxiliary unwinding device according to claim 3, characterized in that, The connecting assembly includes a fixing member, multiple pins, and springs; the fixing member is fixedly connected to the swing arm, the two ends of the pins are respectively connected to the fixing member and the pressure plate, and the springs are correspondingly sleeved on the pins and located between the pressure plate and the fixing member.
5. The auxiliary unwinding device according to claim 4, characterized in that, The fastener includes an integral sleeve and a connecting plate. The sleeve is fitted onto the rocker arm and fixedly connected to it. Multiple pins are connected to the connecting plate, and the two ends of the spring abut against the connecting plate and the pressure plate, respectively.
6. The auxiliary unwinding device according to any one of claims 3-5, characterized in that, The pressure plate and the swing arm are connected by multiple sets of connecting components.
7. The auxiliary unwinding device according to claim 1, characterized in that, The support platform of the trolley is a liftable structure and is equipped with a pressure sensor. When the support platform contacts the paper roll, the lifting structure stops rising.
8. The auxiliary unwinding device according to claim 1, characterized in that, The top surface of the support platform is provided with an arc-shaped groove or a V-shaped groove.
9. The auxiliary unwinding device according to claim 2, characterized in that, The paper pressing mechanism also includes a swing arm adjustment unit, which is used to adjust the maximum swing angle of the swing arm under the drive of the drive unit.
10. The auxiliary unwinding device according to claim 9, characterized in that, The rocker arm adjustment unit includes a slide rail, a slider, a connecting rod, and an adjustment block. The slide rail is fixed to the side of the support beam. The adjustment block is sleeved on the rocker arm and can slide along the axis of the rocker arm. The two sides of the adjustment block are respectively hinged to the piston rod and the connecting rod. The other end of the connecting rod is hinged to the slider. When the maximum swing angle of the rocker arm is adjusted, a pin is inserted into the slider to fix the relative position of the slider and the slide rail.