Carbon fiber multi-section roller

Abstract

The utility model provides a carbon fiber multi-section roller which comprises N sections of paper guide roller bodies, N is larger than or equal to 2, the N sections of paper guide roller bodies are sequentially arranged in a whole row in an end-to-end adjacent mode, supports are installed at the two ends of each section of paper guide roller body, each paper guide roller body comprises a roller cylinder, and center shafts coaxial with the roller cylinder are arranged in the two ends of the roller cylinder respectively. A bearing is fixedly arranged on the central shaft, and the support is fixed with an outer ring of the bearing; the central shaft is fixed with the roller; and the roller is made of a carbon fiber material. A plurality of parallel annular grooves are formed in the surface of the outer circumference of the roller. The thickness and the weight of the roller can be effectively reduced, so that the shutdown time is shortened, and the production efficiency is improved. And the common multi-section roller stops for 3-4 minutes. And after the carbon fibers are replaced, the shutdown time is shortened to 2 minutes, so that the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the papermaking field rewinder, specifically relates to a kind of carbon fiber multi-section roller for rewinder. BACKGROUND

[0002] Rewinder is used in paper mill to unwind, slit and rewind the whole width of paper produced, and finally get the width of the paper required by customers. In the process of paper production, the paper web needs to be kept flat during the cutting process to ensure the quality of the paper. In the past, paper guide rollers were installed before and after the cutting knife to achieve this. The guide roller is a key equipment for the slitting action of the rewinder. Patent CN212449931U discloses a new type of rewinder multi-section roller device, which includes a whole row of guide rollers arranged in sequence with their heads and tails adjacent. However, the above-mentioned multi-section roller still has the following problems: when the rewinder is stopped, the ordinary guide roller has a long downtime, which affects the working efficiency of the rewinder. In addition, when the width of the paper web is large, the ordinary guide roller has large deflection deformation. In order to prevent the deflection deformation from affecting the slitting quality, the ordinary guide roller reduces the deflection deformation by increasing the diameter and mass of the roller body. When the diameter of the roller body is large, the slitting quality is reduced and the downtime of the guide roller is increased. SUMMARY

[0003] The utility model provides a kind of carbon fiber multi-section roller.

[0004] The utility model aims to achieve the following way: a kind of carbon fiber multi-section roller, including N section guide paper roller, N≥2, N section guide paper roller's head and tail are sequentially arranged into a whole row with their heads and tails adjacent, both ends of each guide paper roller are equipped with support, the guide paper roller includes roller, the inside of both ends of the roller is provided with coaxial center shaft;Fixedly arranged bearing on the center shaft, the outer ring of the bearing is fixed with the support;The center shaft and the roller are fixed;The roller is made of carbon fiber material.

[0005] The outer circumferential surface of the roller is provided with a plurality of parallel annular grooves.

[0006] A coaxial flange is fixedly arranged on the center shaft, and the flange is inlaid in the inside of both ends of the roller;The flange is made of carbon steel material.

[0007] The center shaft includes a mounting ring located in the middle, a coaxial cylinder located at one end of the mounting ring near the support cooperates with the inner ring of the bearing;A coaxial circumferential body located at the other end of the mounting ring cooperates with the center hole of the flange;The mounting ring and the flange are fixed horizontally through a plurality of bolts arranged in the circumferential direction.

[0008] The shape of the flange is cylindrical, and the bottom of the cylinder is provided with a coaxial center hole;The upper end circumferential body of the support is located in the inside of the roller, and the front end is located in the cavity of the flange.

[0009] The structure of each section of the paper guide roller and the support at both ends thereof is identical.

[0010] Compared with the prior art, the thickness and weight of the roller can be effectively reduced, thereby reducing the diameter and weight of the whole paper guide roller. Because the weight of the roller is reduced, the rotational inertia is small, thereby reducing the time for shutdown and increasing the production efficiency. The ordinary multi-section roller stops for three to four minutes. After being replaced by the carbon fiber, the stopping time is shortened to two minutes, greatly improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a structural principle schematic diagram of the utility model.

[0012] Figure 2 is Figure 1 is an enlarged view of the support portion.

[0013] Figure 3 is Figure 1 is an enlarged schematic view of the annular grooves of the A portion.

[0014] Figure 4 is an end face view of the support.

[0015] Figure 5 is a working state schematic diagram of the paper guide roller (prior art).

[0016] Wherein, 1 is a paper web, 2 is a cutter, 3 is a support, 4 is a roller, 40 is an annular groove, 5 is a center shaft, 6 is a bearing, and 7 is a flange. DETAILED DESCRIPTION

[0017] In the utility model, unless another definite provision and limitation, the technical terms used in the application should be the general meaning understood by the technical personnel described in the utility model. The terms "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, which can be fixed connection, or detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium; can be mechanical connection, or electrical connection. Unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be the direct contact of the first and second features, or indirectly contact through an intermediate medium. Moreover, the first feature is "on" or "above" or "on" the second feature, which can be the first feature directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under" or "below" or "under" the second feature, which can be the first feature directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than the second feature. The relationship terms such as first, second and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. The orientation or positional relationship indicated by the terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like used in the description are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0018] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and specific embodiments. As shown in the drawings, Figures 1-5 A carbon fiber multi-section roller, comprising N paper guide rollers, N≥2, the first and last adjacent paper guide rollers are sequentially arranged in a whole row, and a support 3 is installed at both ends of each paper guide roller, the paper guide roller comprises a roller 4, a central shaft 5 coaxial with the roller 4 is arranged at both ends of the roller 4; a bearing 6 is fixedly arranged on the central shaft 5, and the support 3 is fixed with the outer ring of the bearing 6; the central shaft 5 and the roller 4 are fixed; the roller 4 is made of carbon fiber material. Wherein the support 3 supports the paper guide roller. As shown in the drawings, Figure 5As shown, the roller 4 made of carbon fiber is installed on both sides of the cutting knife 2 of the rewinder through the support 3. The smaller the diameter of the paper guide roller on both sides of the cutting knife 2, the shorter the distance between the paper guide rollers, the smoother the paper web 1 between the two paper guide rollers, and the higher the cutting quality of the paper roll. The present application adopts multiple paper guide rollers to reduce the influence of deflection deformation. Because the carbon fiber material has the characteristics of high hardness, high strength, light weight and small deflection deformation. Compared with the multiple rollers made of ordinary materials, the diameter of the roller 4 made of carbon fiber is smaller. The present application can effectively reduce the thickness and weight of the roller 4, thereby reducing the diameter and weight of the entire paper guide roller. Because the weight of the roller 4 is reduced, the moment of inertia is small, thereby reducing the time used for stopping and increasing the production efficiency. The working process of the rewinder is to accelerate from the stopped state, reach the highest speed for several minutes, and then start to slow down. The whole working time is 10-15 minutes. After not working, the multiple rollers need to stop rotating before the next work. This stopping process is called parking time. The ordinary multiple rollers stop for three to four minutes. After replacing with carbon fiber, the parking time is shortened to two minutes, which greatly improves the production efficiency. Two center shafts 5 are adopted instead of one shaft penetrating the roller 4, which can further reduce the weight and save the cost. In addition, in the structure used in the paper guide roller before, the roller 4 and the outer ring of the bearing 6 rotate together, and the support 3 and the inner ring of the bearing 6 are fixed. In the present application, the outer ring of the bearing 6 and the support 3 are fixed, and the inner ring of the bearing 6 and the center shaft 5 and the roller 4 rotate together; wherein the center shaft 5 and the roller 4 can be integrally machined, the concentricity is easy to guarantee, the bearing 6 bears small resistance, and rotates quickly. Moreover, it has good heat dissipation and is convenient to add lubricating oil.

[0019] A plurality of parallel annular grooves 40 are formed on the outer circumferential surface of the roller 4. The rewinder runs at a high speed, and the annular grooves formed on the outer surface of the roller 4 can make the paper web 1 quickly peel off from the roller 4 compared with the spiral grooves.

[0020] A coaxial flange 7 is fixedly arranged on the center shaft 5, and the flange 7 is inlaid in the interior of both ends of the roller 4; the flange 7 is made of carbon steel material. Of course, the flange 7 can also be made of carbon fiber material and integrally arranged with the roller 4, so that the weight of the paper guide roller is lighter and the parking time is further reduced.

[0021] The center shaft 5 comprises a mounting ring located in the middle, a coaxial cylinder located at one end of the mounting ring near the support 3 cooperates with the inner ring of the bearing 6; a coaxial circumferential body located at the other end of the mounting ring cooperates with the center hole of the flange 7; the mounting ring and the flange 7 are transversely fixed through a plurality of bolts arranged in the circumferential direction. The bolt penetrates the mounting ring of the center shaft 5 and extends into the flange 7. The flange 7 and the center shaft 5 are connected through the cooperation of the shaft hole, and the connection is more stable through the bolt.

[0022] The flange 7 is in the shape of a cylinder, and the bottom of the cylinder is provided with the coaxial central hole; the upper end of the support 3 is located inside the roller 4, and the front end is located in the cavity of the flange 7. Specifically, the support 3 is mostly located inside the roller 4, thereby reducing the distance between the two paper guide rollers. The support 3 is provided with mounting holes inside, and the outer shape is a chassis connected with the ground at the lower end and a circular body with mounting holes at the upper end. The outer shape of the cylinder includes two tapered bodies with different taper angles at the two ends, and a platform connecting the two tapered bodies. The two tapered bodies correspond to the cavity of the flange 7 and the hole of the roller 4 respectively.

[0023] The structure of each section of the paper guide roller and the support 3 at the two ends thereof is the same.

[0024] In specific implementation, the carbon fiber multi-section roller of the present application is installed on both sides of the cutting knife 2 of the rewinder, and plays a supporting role on the paper web 1. When the paper web 1 moves, the roller 4 rotates.

[0025] The technical features of the above-described embodiments can be combined in any manner, as long as the combination of the technical features does not contradict, and should be considered as within the scope of the present application. Without departing from the overall concept of the present application, the technical solution of the present application can be replaced or changed in an equivalent manner, and several changes and improvements made thereon should also be considered as within the protection scope of the present application.

Claims

1. A carbon fiber multi-section roller, comprising N paper guiding rollers, N≥2, the N paper guiding rollers are sequentially arranged in a whole row with the first and the last paper guiding rollers being adjacent, and a support is installed at each end of each paper guiding roller, characterized in that: The paper guide roller comprises a roller barrel, coaxial center shafts are arranged at both ends of the roller barrel, bearings are fixedly arranged on the center shafts, the supports are fixed with outer rings of the bearings, the center shafts are fixed with the roller barrel, and the roller barrel is made of carbon fiber material.

2. The multi-staged roll of carbon fiber according to claim 1, wherein: A plurality of parallel annular grooves are arranged on the outer circumferential surface of the roller barrel.

3. The multi-staged carbon fiber roller according to claim 1, wherein: A coaxial flange is fixedly arranged on the center shaft, and the flange is inlaid at the inner part of both ends of the roller barrel.

4. The multi-staged roll of carbon fiber according to claim 3, wherein: The center shaft comprises a mounting ring at the middle part, a coaxial cylinder at one end of the mounting ring is matched with an inner ring of the bearing, a coaxial circumferential body at the other end of the mounting ring is matched with a center hole of the flange, and the mounting ring and the flange are transversely fixed through a plurality of bolts arranged in the circumferential direction.

5. The multi-station carbon fiber roller of claim 4, wherein: The flange is in the shape of a cylinder, the bottom of the cylinder is provided with the coaxial center hole, the upper end circumferential body of the support is located in the inner part of the roller barrel, and the front end is located in the cavity of the flange.

6. The multi-station roll of carbon fiber according to any one of claims 1-5, wherein: The structure of each section of the paper guide roller and the support at both ends thereof is the same.

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