A guide roller of a coiling cylinder and a coiling cylinder

Abstract

The utility model relates to a kind of guide roller and winding cylinder of winding cylinder, including rope wheel;The middle part of the rope wheel is equipped with wheel groove, and the wheel groove is inclinedly arranged by roller surface;The end of the rope wheel is fixedly connected with wheel shaft, and the wheel shaft is connected with transmission unit outside;The middle part of the wheel shaft is connected with bearing, and multiple positioning components are respectively arranged on the bearing;The top of the bearing is fixedly connected with fixed seat, and the top of the fixed seat is provided with lubricating mechanism, and the lubricating mechanism is communicated with the inside of bearing, and the lubricating mechanism is used to provide lubricating oil to the bearing, to lubricate the bearing.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically to a guide roller and a winding cylinder. Background Technology

[0002] In papermaking, the take-up cylinder is the core equipment for continuous material winding. Through the coordinated action of power transmission, tension control, and guiding devices, it neatly winds the continuously output strip material (such as the wet paper web produced by the wire section of a paper machine) into a roll, directly affecting production continuity and finished product quality. The guide rope and guide rollers are key components of the take-up cylinder's paper-feeding system: the guide rope pulls the material (such as the wet paper web) that has just left the front production unit, ensuring it precisely conforms to the surface of the take-up cylinder to initiate winding; the guide rollers, by rotating, guide the trajectory of the guide rope and the material, correcting any deviations to ensure winding regularity. In the papermaking industry, especially in the production scenarios of PM35 paper machines, the guide rope typically uses a synthetic fiber braided or steel wire rope core structure, while the guide roller surface is mostly designed with metal polishing or ordinary rubber coating. Together, these two components achieve continuous paper feeding and winding of the wet paper web.

[0003] However, existing paper-feeding systems in the winding cylinder have significant technical defects in practical applications: insufficient contact compatibility between the paper-feeding rope and the guide roller leads to abnormal wear during high-speed operation and friction. Specifically, the paper-feeding rope of the PM35 paper machine only maintains an effective service life of about 2 days after being put into use, far below the industry standard of 7-10 days, requiring frequent shutdowns for replacement. This problem has caused multiple negative impacts: on the one hand, the cost of a single meter of paper-feeding rope is about 10 yuan, and each replacement requires about 60 meters, leading to a significant increase in material waste costs, which will significantly increase production costs in the long run; on the other hand, replacing the paper-feeding rope requires interrupting the production process, which not only reduces production efficiency but may also lead to a chain reaction of problems such as wasted wet paper web and poor connection of subsequent processes due to downtime; in addition, frequent wear and breakage may also lead to instability in the paper-feeding process, increasing the risk of material deviation and winding defects, further affecting the quality stability of the finished roll, and seriously restricting the large-scale mass production application and production efficiency improvement of the PM35 paper machine. Utility Model Content

[0004] Therefore, a guide roller and a winding cylinder are needed to solve the problem of insufficient contact compatibility between the pre-use paper guide rope and the guide roller, which leads to abnormal wear during high-speed operation and friction. Frequent replacements result in a significant increase in material consumption costs, and long-term accumulation will significantly increase production costs. Replacing the paper guide rope requires interrupting the production process, which not only reduces production efficiency but may also lead to waste of wet paper web and poor connection of subsequent processes due to machine downtime.

[0005] To achieve the above objectives, the inventors provide a guide roller for a winding cylinder, including a rope pulley;

[0006] A groove is formed in the middle of the rope pulley, and the groove is inclined to the roller surface;

[0007] The end of the rope pulley is fixedly connected to a wheel axle, and the wheel axle is externally connected to a transmission unit;

[0008] The axle is connected to a bearing in the middle, and multiple positioning components are respectively provided on the bearing;

[0009] The bearing is fixedly connected to a mounting base at its top. A lubrication mechanism is provided at the top of the mounting base. The lubrication mechanism is in communication with the interior of the bearing and is used to provide lubricating oil to the bearing to lubricate it.

[0010] As a preferred structure of this utility model, the groove is machined at an angle of 40-50° on the roller surface, and the transition of the inner sidewall of the groove is a rounded corner.

[0011] As a preferred structure of this utility model, the wheel groove is machined at an angle of 45° to the roller surface.

[0012] As a preferred structure of this utility model, the length of the wheel groove is 70-80mm.

[0013] As a preferred structure of this utility model, the lubrication mechanism includes an oil tank and two side lugs;

[0014] The oil tank is fixedly mounted on the top of the fixed base, and the two side ears are symmetrically installed on both sides of the top of the bearing;

[0015] Oil pipes are fixedly connected to both sides of the oil tank;

[0016] The nozzle is fixedly connected to the bottom of the side ear, and flow channels are opened on both sides inside the bearing, with the end of the nozzle embedded in the flow channels.

[0017] The oil pipe is connected to the top of the nozzle.

[0018] As a preferred structure of this utility model, a miniature oil pump is provided on both oil pipes.

[0019] As a preferred structure of this utility model, the positioning component includes three sets of connecting blocks, which are respectively installed on the left and right sides and the bottom of the bearing.

[0020] As a preferred structure of this utility model, a positioning rod is fixedly installed at the end of the connecting block, and elastic plates are connected around the end of the positioning rod. The elastic plates are inclined, and multiple spring posts are provided on the end of the positioning rod. The spring posts are connected to the upwardly inclined end of the elastic plates.

[0021] As a preferred structure of this utility model, a sealing strip is provided at the connection between the connecting block and the positioning rod.

[0022] The advantages of the above technical solution, compared with existing technologies, are as follows: The guide roller and rope wheel of the winding cylinder of this invention provide traction support for the paper guide rope through rotation. The wheel groove is used to limit the paper guide rope and prevent it from deviating from the guide track. The inclined groove wall design allows the paper guide rope to form surface contact with the wheel groove, rather than the line contact of existing technologies. This adapts to the force direction of the paper guide rope during traction, providing both axial traction and radial pressure. The surface contact design disperses the local pressure on the paper guide rope, avoiding edge tearing and wear due to stress concentration, and reducing the risk of breakage. The inclined structure guides the paper guide rope to fit against the groove wall, preventing deviation during high-speed operation. This solves the pain point of "severe edge wear of the paper guide rope" in existing technologies, significantly extending the service life of the paper guide rope, reducing material costs, improving production efficiency, and reducing downtime losses.

[0023] To achieve the above objectives, the inventors also provide a take-up cylinder, including a guide roller as described in any of the above-mentioned claims.

[0024] The advantages of the above technical solution, which differs from existing technologies, are as follows: In the winding cylinder of this invention, the guide roller and rope wheel provide traction support for the paper guide rope through rotation. The wheel groove is used to limit the paper guide rope and prevent it from deviating from the guide track. The inclined groove wall design allows the paper guide rope to form surface contact with the wheel groove, rather than the line contact of existing technologies. This adapts to the force direction of the paper guide rope during traction, providing both axial traction and radial pressure. The surface contact design disperses the local pressure on the paper guide rope, avoiding edge tearing and wear due to stress concentration, and reducing the risk of breakage. The inclined structure guides the paper guide rope to fit against the groove wall, preventing deviation during high-speed operation. This solves the pain point of "severe edge wear of the paper guide rope" in existing technologies, significantly extending the service life of the paper guide rope, reducing material costs, improving production efficiency, and reducing downtime losses.

[0025] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0026] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0027] In the accompanying drawings of the instruction manual:

[0028] Figure 1 This is a schematic diagram of the guide roller of the take-up cylinder described in a specific embodiment;

[0029] Figure 2 This is one of the structural schematic diagrams of the lubrication mechanism described in the specific embodiment;

[0030] Figure 3 This is a second schematic diagram of the lubrication mechanism described in the specific implementation method;

[0031] Figure 4 This is a schematic diagram of the positioning component described in a specific embodiment;

[0032] Figure 5 This is a schematic diagram of the internal structure of the bearing as described in a specific embodiment.

[0033] The reference numerals used in the above figures are explained as follows:

[0034] 1. Rope pulley; 2. Gear groove; 3. Gear axle; 4. Bearing; 5. Connecting block; 6. Positioning rod; 7. Fixing seat; 8. Side lug; 9. Nozzle; 10. Oil pipe; 11. Oil tank; 12. Flow pipe; 13. Miniature oil pump; 14. Elastic sheet; 15. Spring post; 16. Sealing strip. Detailed Implementation

[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0038] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0039] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0040] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0041] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0042] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. These expressions are only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. Furthermore, in this context, it should be understood that when it is mentioned that an element is connected "on" or "below" another element, it can be directly connected not only to the other element "on" or "below," but also indirectly connected to the other element "on" or "below" through an intermediate element.

[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] Please see Figures 1 to 5This embodiment relates to a guide roller for a winding cylinder, including a rope wheel 1; a groove 2 is formed in the middle of the rope wheel 1, and the groove 2 is inclined to the roller surface; wherein the rope wheel 1 is a cylindrical core component that directly supports and guides the paper guide rope; the groove 2 is an annular groove formed in the middle of the rope wheel 1 along the circumferential direction, and "inclined to the roller surface" means that the inner wall of the groove 2 (the wall near the central axis of the rope wheel 1) forms a preset angle with the axis of the rope wheel 1, rather than being perpendicular. The rope wheel 1 is integrally formed from high-strength alloy steel to ensure wear resistance and rigidity; the groove 2 is coaxially machined with the rope wheel 1, and the inclination direction is consistent with the traction trajectory of the paper guide rope. The rope wheel 1 provides traction support for the paper guide rope by rotation, and the groove 2 is used to limit the paper guide rope and prevent it from deviating from the guide trajectory; the inclined groove wall makes the paper guide rope and the groove 2 form surface contact, rather than the line contact of the prior art, which is adapted to the force direction of the paper guide rope during the traction process, and has both axial traction force and radial pressure. The surface contact design disperses the local pressure on the paper guide rope, avoiding edge tearing and wear due to stress concentration, and reducing the risk of breakage; the inclined structure guides the paper guide rope to fit against the groove wall, preventing deviation during high-speed operation, solving the pain point of "severe wear on the edge of the paper guide rope" in the existing technology, significantly extending the service life of the paper guide rope, reducing material costs, improving production efficiency, and reducing downtime losses.

[0045] The end of the rope pulley 1 is fixedly connected to a wheel axle 3, which is externally connected to a transmission unit. The wheel axle 3 is a cylindrical shaft coaxially fixed to both ends of the rope pulley 1, used to transmit rotational power. The "external transmission unit" refers to the connection of the free end of the wheel axle 3 to the drive system (motor + reducer) of the paper machine, obtaining rotational power matching the speed of the winding cylinder. The wheel axle 3 and the rope pulley 1 are fixed using a "flat key connection + end welding," coaxially arranged to ensure synchronous rotation. Coaxiality control avoids uneven force on the paper guide rope caused by eccentric rotation, further reducing localized wear. The wheel axle 3, as the power transmission carrier, transmits the rotational power of the transmission unit to the rope pulley 1, driving the rope pulley 1 to rotate at a speed matching the front-end production speed. The friction between the rope pulley 1 and the paper guide rope drives the paper guide rope to pull the wet paper web.

[0046] The axle 3 is connected to a bearing 4 at its center, and multiple positioning components are respectively provided on the bearing 4. The bearing 4 is a rolling bearing 4, preferably a deep groove ball bearing 4, fitted in the center of the axle 3, to reduce the frictional resistance when the axle 3 rotates. The positioning components are fixed structures installed on the bearing 4 to limit the axial / radial displacement of the bearing 4. The inner ring of the bearing 4 is interference-fitted with the axle 3, and the outer ring is rigidly connected to the positioning components. The positioning components are distributed around the circumference of the bearing 4 and fixed to the fixed seat 7 to form multi-directional limiting. The bearing 4 reduces the rotational resistance of the axle 3 by replacing sliding friction with rolling friction. The positioning components limit the movement and tilting of the bearing 4, ensuring that the axis of the axle 3 and the rope wheel 1 remains fixed and avoiding displacement during operation. The positioning components ensure the overall installation accuracy of the guide roller and prevent the contact position between the paper guide rope and the wheel groove 2 from shifting due to the movement of the bearing 4.

[0047] The bearing 4 is fixedly connected to a mounting base 7 at its top. A lubrication mechanism is installed at the top of the mounting base 7, and this lubrication mechanism is interconnected with the interior of the bearing 4. The lubrication mechanism supplies lubricating oil to the bearing 4 to lubricate it. The mounting base 7 supports the lubrication mechanism; the lubrication mechanism stores and supplies lubricating oil to the interior of the bearing 4. "Interconnected with the interior of the bearing 4" means that the lubricating oil can enter the friction surface between the rolling elements and the inner and outer rings of the bearing 4 through a pre-defined channel. The mounting base 7 has a shock-absorbing pad at its bottom; the lubrication mechanism is installed at the top of the mounting base 7. The lubrication mechanism continuously supplies lubricating oil to the interior of the bearing 4, forming an oil film on the friction surface, isolating direct metal-to-metal contact, continuously lubricating and eliminating dry friction in the bearing 4, reducing the wear rate of the bearing 4, reducing operating noise, and preventing the paper guide rope from breaking due to instantaneous overload caused by bearing 4 jamming.

[0048] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the groove 2 is machined at a 40-50° bevel angle near the roller surface. The transition of the inner wall of the groove 2 is rounded to avoid sharp angles cutting the paper guide rope. Here, "bevel angle" refers to the angle between the groove 2 near the roller surface (inner wall) and the axis of the rope wheel 1. An angle range of 40°-50° balances the traction force and lateral pressure of the paper guide rope: too small an angle (<40°) will lead to a reduced contact area and increased local pressure; too large an angle (>50°) will make the paper guide rope easily detach from the groove 2. Preferably, in this embodiment, as... Figure 1 As shown, the groove 2 is machined at a 45° angle to the roller surface. The optimal 45° angle ensures that the paper guide rope and the wall of the groove 2 form a uniform surface contact, and the traction force is transmitted along the tangential direction of the groove wall, avoiding lateral slippage. The precise angle design reduces wear on the paper guide rope, extending its service life from the current 2 days to 7-10 days, thus improving its service life. The rounded corner transition further avoids edge tearing of the paper guide rope, reducing replacement frequency and material costs.

[0049] Optionally, in some embodiments, such as Figures 1 to 5As shown, the length of the groove 2 is 70-80mm. Here, "length of groove 2" refers to the axial length of groove 2 along the axis of the rope wheel 1 (i.e., the distance between the two ends of groove 2). The length of groove 2 is adapted to the actual width (60mm) of the paper guide rope of the PM35 paper machine, with a 10-20mm redundancy length reserved to ensure that the paper guide rope can still completely fit the groove wall even with slight deviation. The 70-80mm length design ensures that the contact length between the paper guide rope and groove 2 is ≥60mm, increasing the contact area and dispersing the pressure per unit area; the redundancy length accommodates slight deviation of the paper guide rope, reducing reliance on the correction mechanism. The increased contact area reduces the local pressure on the paper guide rope by 30%, avoiding excessive local wear caused by pressure concentration; the redundancy length improves the adaptability of the guide roller, reduces the frequency of manual adjustment, and lowers operating costs. Preferably, in this embodiment, as... Figure 1 As shown, the length of the groove is 75mm.

[0050] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the lubrication mechanism includes an oil tank 11 and two side ears 8; the oil tank 11 is fixedly installed on the top of the fixed base 7, and the two side ears 8 are symmetrically installed on both sides of the top of the bearing 4; oil pipes 10 are fixedly connected to both sides of the oil tank 11; a nozzle 9 is fixedly connected to the bottom of the side ears 8, and flow pipes 12 are opened on both sides inside the bearing 4, and the end of the nozzle 9 is embedded in the flow pipe 12; the oil pipes 10 and the top of the nozzle 9 are interconnected.

[0051] The oil tank 11 is a sealed container for storing lubricating oil; the side lugs 8 are symmetrically installed on both sides of the top of the bearing 4, used to fix the nozzle 9; the oil pipe 10 is an oil delivery channel connecting the oil tank 11 and the nozzle 9; the nozzle 9 is a component that precisely injects lubricating oil into the flow pipe 12; the flow pipe 12 is a channel opened inside the bearing 4 to guide the distribution of lubricating oil. The oil tank 11 is made of transparent material (for easy observation of the oil level), and has an oil filling port and a sealing cap on the top; the side lugs 8 are welded and fixed to the outer ring of the bearing 4, and the nozzle 9 is a detachable copper structure; the flow pipe 12 is distributed in a ring along the gap between the inner and outer rings of the bearing 4, corresponding one-to-one with the outlet of the nozzle 9. The oil tank 11 stores lithium-based grease (high temperature resistant and moisture resistant), and the two side lugs 8 are symmetrically distributed to ensure that the lubricating oil covers both sides of the bearing 4, with no dead corners in lubrication. The active oil supply design avoids the problem of untimely passive lubrication, reducing the wear rate of bearing 4 by more than 40%; the transparent oil tank 11 facilitates real-time monitoring of the oil level, and the detachable nozzle 9 facilitates maintenance and cleaning; it is suitable for the humid environment of the papermaking workshop, and the lubricating oil is not prone to emulsification and deterioration, thus extending the service life of bearing 4.

[0052] Optionally, in some embodiments, such as Figures 1 to 5As shown, each of the two oil pipes 10 is equipped with a miniature oil pump 13, which is a small drive device that provides power for the delivery of lubricating oil. One miniature oil pump 13 is installed on each of the two oil pipes 10. The miniature oil pump 13 delivers lubricating oil through the oil pipes 10 to the nozzle 9, and the nozzle 9 sprays the lubricating oil evenly onto the surface of the rolling elements of the bearing 4 through the flow pipe 12.

[0053] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the positioning component includes three sets of connecting blocks 5, which are respectively installed on the left and right sides and the bottom of the bearing 4.

[0054] Connecting block 5 is a block-shaped structure used to connect bearing 4. Three sets of connecting blocks 5 are installed on the left, right, and bottom ends of bearing 4, forming a "three-point positioning" structure to restrict the axial and radial displacement of bearing 4. The connecting block 5 is made of stainless steel, and the part that contacts the outer ring of bearing 4 is an arc surface. The three-point positioning structure restricts the movement of bearing 4 axially (from both sides) and restricts the sinking of bearing 4 radially (from the bottom), ensuring that bearing 4 maintains coaxiality during high-speed operation. The arc surface design ensures that the connecting block 5 fits tightly with the outer ring of bearing 4, improving positioning accuracy. Compared with the traditional two-point positioning, the three-point positioning improves positioning accuracy by 50%, and the coaxiality error of wheel axle 3 is small.

[0055] Optionally, in some embodiments, such as Figures 1 to 5 As shown, a positioning rod 6 is fixedly installed at the end of the connecting block 5. Elastic sheets 14 are connected to all four sides of the end of the positioning rod 6. The elastic sheets 14 are inclined, and multiple spring posts 15 are provided on the end of the positioning rod 6. The spring posts 15 are connected to the upwardly inclined end of the elastic sheets 14. The positioning rod 6 is a rod-shaped structure fixed to the end of the connecting block 5 to further strengthen the positioning of the bearing 4; the elastic sheet 14 is an elastic component inclined at the end of the positioning rod 6, possessing deformation recovery capability; the spring posts 15 are elastic support components connecting the elastic sheet 14 and the positioning rod 6, providing buffering force for the elastic sheet 14. The elastic sheet 14 is made of spring steel and is inclined at a 15° angle to the axis of the positioning rod 6; the spring posts 15 are compression springs, with both ends fixed to the lower surface of the elastic sheet 14 and the positioning rod 6, respectively. After the positioning rod 6 and the elastic plate 14 are connected to the external transmission unit, the elastic plate 14 squeezes the spring column 15 to make the elastic plate 14 flat, thus achieving a dual guarantee of positioning accuracy and running stability. This ensures both positioning accuracy and adapts to the dynamic operating characteristics of the transmission unit.

[0056] Optionally, in some embodiments, such as Figures 1 to 5As shown, a sealing strip 16 is provided at the connection between the connecting block 5 and the positioning rod 6. The sealing strip 16 is an annular elastic component located at the connection between the connecting block 5 and the positioning rod 6, used to seal gaps and prevent impurities from entering. The sealing strip 16 is made of nitrile rubber, which is oil-resistant and moisture-resistant.

[0057] This embodiment also relates to a take-up cylinder, including guide rollers as described in any of the above embodiments of the take-up cylinder.

[0058] Specifically, the working principle of the winding cylinder guide roller and winding cylinder in this embodiment revolves around four core aspects: "precise power transmission, low-wear paper feeding guidance, stable positioning support, and continuous lubrication guarantee." The components work together to achieve continuous and stable winding of the wet paper web, as detailed below:

[0059] 1. Power transmission and rotation of pulley 1

[0060] When the winding cylinder is running, the transmission unit (motor + reducer) of the PM35 paper machine transmits rotational power through the input end of the wheel shaft 3. The wheel shaft 3 and the rope wheel 1 are fixed by "flat key connection + end welding" to ensure power transmission without loss. The driving rope wheel 1 maintains the linear speed of the winding cylinder body at a speed of 100-300r / min (adapting to the output speed of the front wet paper web).

[0061] The deep groove ball bearing 4 in the middle of the wheel axle 3 replaces sliding friction with rolling friction, which greatly reduces rotational resistance. At the same time, the inner ring of the bearing 4 is interference-fitted with the wheel axle 3 and the outer ring is rigidly connected to the positioning component, ensuring that the wheel axle 3 and the rope wheel 1 rotate coaxially and avoiding uneven force on the paper guide rope caused by eccentricity.

[0062] 2. Paper guiding and low-wear fitting components

[0063] The paper guide rope is embedded in the inclined groove 2 in the middle of the rope wheel 1. The 45° angle design makes the paper guide rope form a surface contact with the groove wall, rather than the line contact of the prior art. While dispersing local pressure, the inclined direction of the groove wall guides the traction force of the paper guide rope to be transmitted along the tangential direction, avoiding lateral slippage.

[0064] The groove is 70-80mm long with a 10-20mm redundancy to accommodate minor deviations in the paper guide rope during operation, ensuring that the paper guide rope is always completely in contact with the groove wall, without any local suspension or edge compression, reducing friction and wear of the paper guide rope and lowering the risk of breakage.

[0065] Under the traction force of the rotating pulley 1, the paper guide rope pulls the wet paper web output from the front wire section, precisely adheres to the surface of the winding cylinder along the guide track, and starts the winding process, realizing a smooth transition of the wet paper web from the front production unit to the winding cylinder.

[0066] 3. Positioning stability and vibration buffering components

[0067] The three sets of connecting blocks 5 (left and right sides + bottom) on the outside of the bearing 4 form a three-point positioning structure, which restricts the bearing 4 from moving axially and from sinking radially, ensuring that the bearing 4 maintains a fixed position during high-speed operation.

[0068] The nitrile rubber sealing strip 16 between the connecting block 5 and the positioning rod 6 seals the gap, preventing moisture, pulp debris and other impurities from the papermaking workshop from entering the positioning mechanism and bearing 4, avoiding rust or jamming, and ensuring long-term stable positioning accuracy.

[0069] 4. Continuous lubrication and wear protection

[0070] The oil tank 11 of the lubrication mechanism stores lithium-based grease (high temperature resistant and moisture resistant). After the micro oil pump 13 on the two oil pipes 10 is started, the lubricating oil is delivered through the oil pipes 10 to the nozzles 9 on both sides of the top of the bearing 4. The nozzles 9 spray the lubricating oil evenly onto the friction surfaces of the rolling elements and inner and outer rings of the bearing 4 through the annular flow pipe 12 inside the bearing 4, forming a continuous oil film and isolating direct metal contact.

[0071] The symmetrically distributed two side ears 8 and nozzles 9 ensure that the lubricating oil covers both sides of the bearing 4 without dead corners. The active oil supply design avoids the problem of untimely passive lubrication, eliminates dry friction of the bearing 4, reduces the wear rate of the bearing 4 by more than 40%, and at the same time reduces operating noise and prevents the paper guide rope from breaking due to instantaneous overload caused by the bearing 4 jamming.

[0072] 5. Coordination of winding and overall closed-loop operation

[0073] The guide roller is installed at the feed end of the winding cylinder, and its axis is parallel to the axis of the winding cylinder. The paper guide rope is wound in the wheel groove 2, and the traction end is detachably connected to the winding cylinder body, forming a power coordinated closed loop of "transmission unit → wheel axle 3 → rope wheel 1 → paper guide rope → winding cylinder".

[0074] In summary, the winding cylinder guide roller and winding cylinder of this embodiment solve the wear problem of the prior art from multiple dimensions such as power transmission, contact cooperation, positioning stability, and lubrication protection through structural optimization and collaborative work of each component. It achieves the technical goals of long paper rope life, high equipment stability and high production efficiency, and is fully adapted to the large-scale mass production needs of PM35 papermaking machine.

[0075] The advantages of the above technical solution, which differ from existing technologies, are as follows:

[0076] Significantly extends the service life of the paper guide rope and reduces material costs.

[0077] By employing a 40-50° inclined groove design, a 70-80mm length adaptation, and rounded corner transitions on the groove walls, the paper guide rope achieves uniform surface contact with the groove 2, dispersing local pressure by over 30% and preventing tearing and wear caused by edge stress concentration. Combined with improved overall operational stability of the guide rollers, the lifespan of the paper guide rope is extended from the current 2 days to 7-10 days, matching the industry standard cycle, and reducing the replacement frequency by over 70%. Based on a cost of 10 yuan per meter of paper guide rope and a replacement frequency of 60 meters per cycle, the annual material cost can be reduced by approximately 76,000 yuan (calculated based on 300 operating days per year, the original replacement frequency of 150 times / year, and the optimized replacement frequency of 43 times / year), significantly reducing production costs.

[0078] Improve production efficiency and reduce downtime losses.

[0079] The reduced frequency of paper guide rope replacement avoids frequent downtime and production interruptions. At the same time, the active oil supply design of the lubrication mechanism and the high-precision fixing of the positioning components reduce the failure rate of the guide rollers and reduce unplanned downtime caused by bearing jamming, positioning misalignment, etc.

[0080] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A guide roller for a winding cylinder, characterized in that: Including pulleys; A groove is formed in the middle of the rope pulley, and the groove is inclined to the roller surface; The end of the rope pulley is fixedly connected to a wheel axle, and the wheel axle is externally connected to a transmission unit; The axle is connected to a bearing in the middle, and multiple positioning components are respectively provided on the bearing; The bearing is fixedly connected to a mounting base at its top. A lubrication mechanism is provided at the top of the mounting base. The lubrication mechanism is in communication with the interior of the bearing and is used to provide lubricating oil to the bearing to lubricate it.

2. The guide roller of the winding cylinder according to claim 1, characterized in that: The groove is machined at an angle of 40-50° to the roller surface, and the inner wall transition of the groove is rounded.

3. The guide roller of the winding cylinder according to claim 1, characterized in that: The groove of the wheel is machined at a 45° bevel angle to the roller surface.

4. The guide roller of the winding cylinder according to any one of claims 1 to 3, characterized in that: The length of the wheel groove is 70-80mm.

5. The guide roller of the winding cylinder according to any one of claims 1 to 3, characterized in that: The lubrication mechanism includes an oil tank and two side lugs; The oil tank is fixedly mounted on the top of the fixed base, and the two side ears are symmetrically installed on both sides of the top of the bearing; Oil pipes are fixedly connected to both sides of the oil tank; The nozzle is fixedly connected to the bottom of the side ear, and flow channels are opened on both sides inside the bearing, with the end of the nozzle embedded in the flow channels. The oil pipe is connected to the top of the nozzle.

6. The guide roller of the winding cylinder according to claim 5, characterized in that: Both of the oil pipes are equipped with miniature oil pumps.

7. The guide roller of the winding cylinder according to any one of claims 1 to 3, characterized in that: The positioning component includes three sets of connecting blocks, which are respectively installed on the left and right sides and the bottom of the bearing.

8. The guide roller of the winding cylinder according to claim 7, characterized in that: A positioning rod is fixedly installed at the end of the connecting block. Elastic sheets are connected to all four sides of the end of the positioning rod. The elastic sheets are inclined, and multiple spring posts are provided on the end of the positioning rod. The spring posts are connected to the upwardly inclined end of the elastic sheets.

9. The guide roller of the winding cylinder according to claim 8, characterized in that: A sealing strip is provided at the connection between the connecting block and the positioning rod.

10. A winding cylinder, characterized in that: Includes the guide roller of the take-up cylinder as described in any one of claims 1 to 9 above.

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