Paper winding system of rewinding machine
By using eyelet vacuum rollers and blowing devices in the rewinder, the problem of paper core tubes that cannot be reused is solved and production costs are reduced.
Patent Information
- Application Number
- CN202422501733.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-15
AI Technical Summary
During the production process of existing rewinders, paper core tubes cannot be reused, and the amount of hot melt adhesive is used is large, resulting in waste and increased costs.
A vacuum roller with holes is used as the second bottom roller, and combined with multiple blowing devices, the paper head is gradually adsorbed on the paper core tube to achieve film-free paper, and the paper core tube can be reused.
The use of hot melt adhesive is reduced, the number of reuses of paper core tubes is increased, and the production cost is reduced.
Smart Images
Figure CN223291971U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of papermaking, and in particular to a paper rewinding system of a rewinder. Background Art
[0002] Human life is inseparable from paper, including household paper, sanitary paper, and industrial paper. With demand growing year by year, the requirements for paper winding technology are becoming increasingly demanding. Rewinders are generally used for rewinding and slitting mica tapes, paper, and film, serving as a two-piece process. They are often used to slit wide rolls, playing an important role in subsequent re-slitting. They are specialized equipment for paper, mica tape, and film.
[0003] At present, in the papermaking process, the rewinder sprays glue on the paper core tube during production, sticks the paper tail to it and starts running. The paper core tube used in this production method can basically not be reused, and the amount of hot melt glue used is large, resulting in waste. Utility Model Content
[0004] The present disclosure is proposed in view of the above problems. The present disclosure provides a paper rewinding system for a rewinder, which can reuse the paper core tubes used in the paper rewinding process of the rewinder.
[0005] According to one aspect of the present disclosure, a paper rewinding system for a rewinder is provided, comprising a first bottom roller, a second bottom roller, a first blowing device, a second blowing device, and a third blowing device, wherein the second bottom roller is a vacuum roller having holes, and a paper core tube is located above the first bottom roller and the second bottom roller;
[0006] There is a gap between the first bottom roller and the second bottom roller for the paper web to pass through. The first blowing device is located above the first bottom roller, the second blowing device is located above the second bottom roller, and the third blowing device is located below the gap between the first bottom roller and the second bottom roller.
[0007] In the technical solution provided in the embodiments of the present disclosure, first, because the second bottom roller is a vacuum roller with holes, before the next paper core tube begins to roll paper, the paper head of the paper web can be passed through the gap between the first bottom roller and the second bottom roller, and the paper head of the paper web can be adsorbed on the second bottom roller. At this time, the first blowing device above the first bottom roller is used to blow the paper head until it is adsorbed on the paper core tube. Then, the paper roll crawling device is turned on. As the paper head crawls along the circumference of the paper core tube, the second blowing device located above the second bottom roller is used to blow the paper head until it is adsorbed between the paper core tube and the first bottom roller. Then, the third blowing device located below the gap between the first bottom roller and the second bottom roller is used to blow the paper head until it is adsorbed between the paper core tube and the second bottom roller. At this time, as the paper head continues to crawl, the paper head can be rolled into the paper core tube by the following paper web, so that the entire paper web is smoothly rolled on the paper core tube, forming a paper roll on the paper core tube, achieving the purpose of not spraying film on the paper core tube. At the same time, the paper rolls are sent to the post-processing department. After production according to the specifications, since there is no glue on the paper core tube, the paper core tube can be recycled back to the winder for reuse. This not only reduces the amount of hot melt adhesive used, but also increases the number of times the paper core tube is reused, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The above and other purposes, features, and advantages of the present disclosure will become more apparent through a more detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and are not intended to limit the present disclosure. In the drawings, the same reference numerals generally represent the same components or steps.
[0009] Figure 1 It is a structural schematic diagram of the paper rewinding system of the rewinder according to an embodiment of the present disclosure.
[0010] Reference numerals:
[0011] 100-first bottom roller, 200-second bottom roller, 300-first blowing device, 400-second blowing device, 500-third blowing device, 600-paper core tube, 700-paper pressing roller, 800-paper cutting knife, 900-paper kicking device, 1000-introduction roller. DETAILED DESCRIPTION
[0012] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.
[0013] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.
[0014] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this disclosure, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.
[0015] In the description of the present disclosure, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present disclosure.
[0016] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.
[0017] Human life is inseparable from paper, including household paper, sanitary paper, and industrial paper. Demand for this material continues to grow annually, leading to increasingly demanding requirements for paper reel technology. Paper rewinders are crucial equipment in the papermaking industry, primarily used to slit and rewind large-diameter paper rolls to specific specifications, creating smaller diameter rolls that meet market demands. Rewinders can adjust the width, tightness, and diameter of the paper rolls to ensure quality and appearance.
[0018] At present, in the papermaking process, the rewinder sprays glue on the paper core tube during production, sticks the paper tail to it and starts running. The paper core tube used in this production method can basically not be reused, and the amount of hot melt glue used is large, resulting in waste.
[0019] To address the above issues, the present invention provides a paper rewinding system that can reuse the paper core tubes used in the paper rewinding process. This solves the problem in the prior art that the paper core tubes used in the rewinding production method are basically irreusable and the amount of hot melt adhesive used is large, resulting in waste.
[0020] Figure 1 The structure diagram of the paper rewinding system of the rewinding machine according to the embodiment of the present disclosure is shown as follows: Figure 1 As shown, the paper rewinding system of the rewinding machine according to the embodiment of the present disclosure includes: a first bottom roller 100, a second bottom roller 200, a first blowing device 300, a second blowing device 400, and a third blowing device 500. The second bottom roller 200 is a vacuum roller with holes. The paper core tube 600 is located above the first bottom roller 100 and the second bottom roller 200. A gap is defined between the first bottom roller 100 and the second bottom roller 200 for the paper web to pass through. The first blowing device 300 is located above the first bottom roller 100, the second blowing device 400 is located above the second bottom roller 200, and the third blowing device 500 is located below the gap between the first bottom roller 100 and the second bottom roller 200.
[0021] It is understood that the first bottom roller 100 can be defined as the front bottom roller in the rewinder's paper reeling device, and the second bottom roller 200 can be defined as the rear bottom roller in the rewinder's paper reeling device. The paper core tube 600 can be placed in the gap between the first bottom roller 100 and the second bottom roller 200. Before the next paper core tube begins reeling, the leading edge of the paper web can be passed from below the gap between the first bottom roller 100 and the second bottom roller 200.
[0022] In practical applications, first, because the second bottom roller is a perforated vacuum roller, before the next paper core begins winding, the paper head of the paper web can be directly adsorbed onto the second bottom roller 200 after passing between the first bottom roller 100 and the second bottom roller 200. At this point, the first blowing device 300 above the first bottom roller 100 can be used to blow the paper head until it is adsorbed onto the paper core tube 600. Then, the paper roll crawling device is activated. As the paper head crawls along the circumference of the paper core tube 600, the second blowing device 400 located above the second bottom roller 200 blows the paper head until it is adsorbed between the paper core tube 600 and the first bottom roller 100. Finally, the third blowing device 500 located below the gap between the first bottom roller 100 and the second bottom roller 200 blows the paper head until it is adsorbed between the paper core tube 600 and the second bottom roller 200.
[0023] On this basis, as the paper head continues to crawl, it can be rolled onto the paper core tube 600 by the following paper web, allowing the entire paper web to be smoothly wound onto the paper core tube 600 and forming a paper roll on the paper core tube 600, thereby achieving the goal of not spraying adhesive on the paper core tube. At the same time, after the paper roll is sent to the post-processing department and produced according to specifications, since the paper core tube is no longer glued, it can be recycled back to the winding machine for reuse. This not only reduces the amount of hot melt adhesive used, but also increases the number of times the paper core tube can be reused, reducing production costs.
[0024] In one practicable manner, the paper rewinding system of the rewinding machine of the embodiment of the present disclosure further includes a press roller 700, which is located above the paper core tube 600, the first blowing device 300 is located on a first side of the press roller 700, and the second blowing device 400 is located on a second side of the press roller 700. It should be understood that the first side of the press roller 700 can be defined as the side of the press roller 700 close to the second bottom roller 200, and the second side of the press roller 700 can be defined as the side of the press roller 700 close to the first bottom roller 100.
[0025] In one example, before the paper roll is replaced in the embodiment of the present disclosure, the distance between the gaps between the pressing roller 700 and the first bottom roller 100 and the second bottom roller 200 is greater than a preset distance.
[0026] In specific implementation, when the paper head of the paper web is adsorbed on the second bottom roller 200, the press roller 700 is first lowered until the distance between the press roller 700 and the paper core tube 600 reaches a predetermined distance. The first blowing device 300 is then used to blow the paper head until it is adsorbed between the paper core tube 600 and the press roller 700. The press roller 700 is then lowered until it contacts the paper core tube 600, pressing the paper head between the press roller 700 and the paper core tube 600. This allows the press roller 700 to press the paper head tightly against the paper core tube 600, preventing the paper head from falling and paving the way for the paper head to continue crawling and winding around the paper core tube 600.
[0027] It is understandable that the preset distance may be the initial distance between the center of the paper pressing roller 700 and the center of the paper core tube 600 , and the initial distance may be 20 cm to 25 cm.
[0028] The distance between the pressing roller 700 and the gap between the first bottom roller 100 and the second bottom roller 200 may be defined as the distance between the center axis of the pressing roller 700 and the gap between the first bottom roller 100 and the second bottom roller 200 .
[0029] In one practicable manner, the paper rewinding system of the rewinder of the embodiment of the present disclosure further includes a paper cutting knife 800 , which is located below the gap between the first bottom roller 100 and the second bottom roller 200 .
[0030] In practical applications, the paper cutter 800 can be used to separate the remaining paper web from the previous paper roll after it is formed, thereby obtaining the previous paper roll. Simultaneously, the end of the severed paper web can be attracted to the second bottom roller 200, thereby continuing the winding process of the next paper roll.
[0031] In one achievable manner, the paper cutter of the embodiment of the present disclosure has a lifting angle of 24° to 35° when in use.
[0032] In practice, after the previous paper roll is formed, before the paper cutter 800 is used to separate the remaining paper from the previous roll, the paper cutter 800 can be raised to an angle of 24° to 35° before the paper web is cut. This ensures that the length of the paper head adsorbed on the second bottom roller 200 is as long as possible. This allows the paper head to pass between the press roller 700 and the paper core tube 600 when the first blowing device 300 is used to blow the paper head until it is adsorbed on the paper core tube 600.
[0033] In an optional embodiment, the rewinding machine paper winding system of the embodiment of the present invention also includes a controller, and the first bottom roller 100, the second bottom roller 200, the first blowing device 300, the second blowing device 400, the third blowing device 500, the paper pressing roller 700, and the paper cutting knife 800 are connected to the controller signal.
[0034] In a specific implementation, a controller can be used to control the operation of the first bottom roller 100, the second bottom roller 200, the first blowing device 300, the second blowing device 400, the third blowing device 500, the paper pressing roller 700, and the paper cutter 800. It is understood that the controller can be a chip with signal processing capabilities, such as a processor in a computer device.
[0035] Each operation in the above method disclosed in the embodiment of the present disclosure can be completed by an integrated logic circuit of the hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present disclosure can be directly embodied as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a memory, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, or other mature storage media in the art. The processor reads the information in the memory and completes the above operations in combination with its hardware.
[0036] In actual application, the control program can be stored in the computer device in advance, and then the computer device is used to send a start instruction or a stop instruction to the first bottom roller 100, the second bottom roller 200, the first blowing device 300, the second blowing device 400, the third blowing device 500, the paper pressing roller 700, and the paper cutting knife 800, so that the start and stop of the first bottom roller 100, the second bottom roller 200, the first blowing device 300, the second blowing device 400, the third blowing device 500, the paper pressing roller 700, and the paper cutting knife 800 can be directly controlled by the electronic device to realize the paper winding process of the rewinder.
[0037] In an optional embodiment, the rewinding system of the present disclosure further includes a paper kicking device 900 for removing the previous paper roll. For example, after the un-glued paper core tube 600 enters the pre-production position, the paper kicking program is activated to kick out the previously completed paper roll, thereby providing space for the next paper core tube to be wound.
[0038] In an optional manner, the paper rewinding system of the rewinder embodiment of the present disclosure further includes a thimble mechanism, which is located at both ends of the paper core tube. The thimble mechanism is used to fix the paper core tube 600 after the paper core tube 600 enters the operating position.
[0039] Exemplarily, the rewinding system of the rewinding machine of the disclosed embodiment further includes a plurality of introduction rollers 1000, which are located behind the second bottom roller 200. The introduction rollers 1000 are used to introduce the paper web into the gap between the first bottom roller 100 and the second bottom roller 200 in a parallel direction.
[0040] It can be understood that in the paper winding system of the rewinder in the embodiment of the present invention, the winding direction of the paper web on the paper core tube 600 is clockwise. The paper web is first introduced into a parallel direction by using an introduction roller, and then enters from the gap between the bottom of the first bottom roller 100 and the second bottom roller 200, and then starts to be wound from the side of the paper core tube 600 close to the second bottom roller 200. The paper web crawls around the paper core tube 600 in a clockwise direction, thereby completing the paper winding process of the rewinder.
[0041] Example:
[0042] 1. Stop the paper core tube glue spraying program;
[0043] 2. Adjust the paper cutter angle in the program to 24 degrees to 35 degrees;
[0044] 3. Add a first blowing device on the first side of the paper pressing roller, a second blowing device on the second side of the paper pressing roller, and a third blowing device at the lower paper cutting knife;
[0045] 4.1) When the paper core tube enters the pre-production position without glue spraying, the paper kicking program is started, and the paper kicking device kicks out the previous set of paper. At the same time, the paper core removal program is started, and the vacuum suction cup sucks up the paper core tube and transports it to the gap between the first bottom roller and the second bottom roller, and puts it into the running position;
[0046] 2) The paper cutter automatically rises to a 35-degree angle to cut the paper from the previous roll. According to the program settings, the cut paper ends are adsorbed on the second rear bottom roller. At this time, the paper ends are not long enough, so the second bottom roller starts to crawl, driving the paper ends to crawl;
[0047] 3) The paper core tube is lowered to the middle position above the first bottom roller and the second bottom roller. At this time, the paper head is attached to the second bottom roller, and the ejectors on both sides enter the running position, holding up the two ends of the paper core tube to fix the paper core tube;
[0048] 4) The press roller begins to fall. When it reaches a height of 20 cm from the paper core tube, the first blowing device is activated. The first blowing device on the first side of the press roller blows the paper head from the second bottom roller to the paper core tube. The end of the paper head is located between the paper core tube and the press roller.
[0049] 5) Because the glue spraying is canceled, the paper head cannot stick to the paper core tube. At this time, the paper pressing roller continues to fall, pressing the paper head between the paper pressing roller and the paper core tube. At this time, the first blowing device on the first side of the paper pressing roller stops;
[0050] 6) The crawling program starts, the second blowing device on the second side of the paper pressing roller and the third blowing device at the paper cutting knife are turned on at the same time, the paper head runs in a clockwise direction at a speed of 5 m / min, and the second blowing device on the second side of the paper pressing roller blows the paper head into the space between the first bottom roller and the paper core tube in the running direction;
[0051] 7) The paper head continues to move forward, and the third blowing device at the paper cutter blows the paper head into the space between the paper core tube and the paper web at the second bottom roller. The entire paper is smoothly rolled onto the paper core tube. After 6 seconds, the speed is changed to 10 m / min. After 30 seconds of crawling, the speed is increased to the operating speed of 1850 m / min until the specified length is rolled. Repeat step 1) to complete the complete non-film-spraying paper rolling process.
[0052] The rewound paper rolls are sent to the post-processing department. After production according to the specifications, since there is no glue on the paper core tube, the paper core tube is recycled back to the rewinder and the rewinder is reused, which reduces the amount of hot melt adhesive used, increases the number of times the paper core tube is reused, and reduces production costs.
[0053] In summary, in the rewinding system of the disclosed embodiment, since the second bottom roller is a vacuum roller with holes, before the next paper core tube begins to wind, the paper head of the paper web can be passed through the gap between the first bottom roller and the second bottom roller, and the paper head of the paper web can be adsorbed on the second bottom roller. At this time, the first blowing device above the first bottom roller is used to blow the paper head until it is adsorbed on the paper core tube. Then, the paper roll crawling device is activated. As the paper head crawls along the circumference of the paper core tube, the second blowing device located above the second bottom roller is used to blow the paper head until it is adsorbed between the paper core tube and the first bottom roller. Then, the third blowing device located below the gap between the first bottom roller and the second bottom roller is used to blow the paper head until it is adsorbed between the paper core tube and the second bottom roller. At this time, as the paper head continues to crawl, the paper head can be rolled onto the paper core tube by the following paper web, so that the entire paper web is smoothly rolled onto the paper core tube, forming a paper roll on the paper core tube, thereby achieving the purpose of not spraying film on the paper core tube. At the same time, the paper rolls are sent to the post-processing department. After production according to the specifications, since there is no glue on the paper core tube, the paper core tube can be recycled back to the winder for reuse. This not only reduces the amount of hot melt adhesive used, but also increases the number of times the paper core tube is reused, thereby reducing production costs.
[0054] The basic principles of the present disclosure have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this disclosure are merely illustrative and not restrictive, and should not be construed as necessarily possessed by each embodiment of the present disclosure. Furthermore, the specific details disclosed above are provided for illustrative purposes and to facilitate understanding, rather than as limitations. These details do not limit the present disclosure to necessarily being implemented using these specific details.
[0055] The block diagrams of the devices, devices, equipment, and systems involved in this disclosure are intended only as illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "including," "comprising," "having," and the like are open-ended words that refer to "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or," and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.
[0056] Additionally, as used herein, "or" used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the example described is preferred or better than other examples.
[0057] It should also be noted that in the system and method of the present disclosure, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present disclosure.
[0058] Various changes, substitutions, and modifications may be made to the technology described herein without departing from the teachings defined by the appended claims. Moreover, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, compositions of things, means, methods, and actions described above. Currently existing or later developed processes, machines, manufactures, compositions of things, means, methods, or actions that perform substantially the same function or achieve substantially the same results as the corresponding aspects described herein may be utilized. Accordingly, the appended claims include within their scope such processes, machines, manufactures, compositions of things, means, methods, or actions.
[0059] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0060] The above description has been provided for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.
Claims
1. A paper rewinding system, characterized in that: It includes a first bottom roller, a second bottom roller, a first blowing device, a second blowing device and a third blowing device, wherein the second bottom roller is a vacuum roller with holes, and the paper core tube is located above the first bottom roller and the second bottom roller; There is a gap between the first bottom roller and the second bottom roller for the paper web to pass through. The first blowing device is located above the first bottom roller, the second blowing device is located above the second bottom roller, and the third blowing device is located below the gap between the first bottom roller and the second bottom roller.
2. The paper rewinding system of claim 1, characterized in that: The rewinding system further comprises a press roller, which is located above the paper core tube. The first blowing device is located on a first side of the press roller, and the second blowing device is located on a second side of the press roller.
3. The paper rewinding system of claim 2, characterized in that: The rewinding system of the rewinding machine further includes a paper cutting knife, and the paper cutting knife is located below the gap between the first bottom roller and the second bottom roller.
4. The paper rewinding system of claim 3, characterized in that: The lifting angle of the paper cutting knife is 24° to 35°.
5. The paper rewinding system of the rewinding machine according to claim 3, characterized in that: The rewinding system further includes a controller, and the first bottom roller, the second bottom roller, the paper pressing roller, the paper cutting knife, the first blowing device, the second blowing device, and the third blowing device are respectively connected to the controller by signal.
6. The paper rewinding system of claim 2, characterized in that: Before the paper roll is replaced, the distance between the paper pressing roller and the gap between the first bottom roller and the second bottom roller is greater than a preset distance.
7. The paper rewinding system of claim 1, characterized in that: The rewinding system further comprises a paper kicking device, which is used to remove the previous paper roll.
8. The paper rewinding system of any one of claims 1 to 7, characterized in that: The rewinding system further comprises a plurality of lead-in rollers, which are located behind the second bottom roller and are used to lead the paper web in a parallel direction and then into the gap between the first bottom roller and the second bottom roller.
9. The paper rewinding system of any one of claims 1 to 7, characterized in that: The rewinding system further comprises an ejector pin mechanism, which is located at both ends of the paper core tube and is used to fix the paper core tube after the paper core tube enters the operating position.