Anti-crease roller for glass fabric production
By incorporating a bidirectional threaded structure design during the production process, the problem of creases in ultra-thin fiberglass cloth was solved, achieving smooth conveying and improved quality of the fiberglass cloth.
Patent Information
- Application Number
- CN202511411114.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-01-02
AI Technical Summary
During the production of fiberglass cloth, ultra-thin fiberglass cloth is prone to creases, which affects product quality and market competitiveness.
A bidirectional thread structure is set on the surface of the roller body, with opposite thread directions and gradually changing pitch and depth. Tension is applied from the center to both sides to evenly distribute the tension and prevent creases from forming.
It effectively prevents fiberglass cloth from developing creases during transportation, keeps it flat, improves product quality and pass rate, and avoids damage to the cloth caused by excessive local tension.
Smart Images
Figure CN121247547A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of textile machinery, and particularly relates to a crease-proof roller for glass fiber cloth production. BACKGROUND
[0002] Glass fiber cloth is a sheet material made of glass fiber (glass fiber is a very thin fiber with a diameter of several microns to twenty microns) as a base material through a textile process (such as weaving, knitting, etc.).
[0003] With the increasing requirements of users on products, the market products develop towards light weight, and customers require thinner and thinner glass fiber cloth, and ultra-thin cloth has gradually become a main competitive product. With the thinner glass fiber cloth, crease defects are more likely to occur in the production process. Therefore, how to effectively reduce the probability of crease generation in the production process of ultra-thin glass fiber cloth has become a key technical problem for improving product quality and enhancing market competitiveness of enterprises. SUMMARY
[0004] To solve the technical problems in the background art, the present application provides a crease-proof roller for glass fiber cloth production.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme.
[0006] A crease-proof roller for glass fiber cloth production comprises a roller body, characterized in that a bidirectional thread structure is arranged on the surface of the roller body.
[0007] The bidirectional thread structure is centered on the axial middle section of the roller body and extends to both ends of the roller body, and the thread structure is right-handed thread at the left end of the roller body and left-handed thread at the right end of the roller body, so that when the glass fiber cloth passes through the roller body along the conveying direction, the bidirectional thread structure applies tension to the cloth surface, which expands from the middle part to both sides.
[0008] The pitch of the bidirectional thread structure is variable, and gradually increases from the axial middle section to both ends of the roller body.
[0009] The thread depth of the bidirectional thread structure is variable, and gradually decreases from the axial middle section to both ends of the roller body.
[0010] Preferably, the thread cross-sectional shape of the bidirectional thread structure is trapezoidal or circular arc.
[0011] Preferably, the pitch of the thread linearly or nonlinearly increases from the axial middle section to both ends of the roller body.
[0012] Preferably, the depth of the thread linearly or nonlinearly decreases from the axial middle section to both ends of the roller body.
[0013] Preferably, the thread pitch at the axial middle section is P1, the thread pitch at the end of the roller body is P2, wherein P2>P1, and 5mm≤P1≤30mm, 10mm≤P2≤60mm.
[0014] Preferably, the thread depth at the axial middle section is H1, the thread depth at the end of the roller body is H2, wherein H2<H1, and 0.5mm≤H1≤3.0mm, 0.1mm≤H2≤1.0mm.
[0015] Preferably, the crease-proof roller is suitable for use as a guide roller, a tension adjusting roller or a flattening roller in the production process of ultra-thin glass fiber cloth.
[0016] Compared with the prior art, the beneficial effects of the present application are:
[0017] Compared with the prior art, by arranging a bidirectional thread structure on the surface of the roller body, and making the thread rotation directions different at the left and right ends, the tension of the glass fiber cloth can be expanded from the middle to the two sides, so that the glass fiber cloth remains flat during the conveying process, effectively preventing the generation of creases; the variable pitch and variable depth design makes the tension of the roller body on the glass fiber cloth more reasonable; the small pitch and large depth at the axial middle section can provide a larger initial tension; the increasing pitch and decreasing depth towards the two ends of the roller body can make the tension gradually and uniformly dispersed, avoiding damage to the glass fiber cloth caused by excessive local tension, and further improving the crease-proof effect. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The figure is a structural schematic diagram of the crease-proof roller for glass fiber cloth production according to the present application;
[0019] Figure 2 The figure is a structural schematic diagram of the crease-proof roller for glass fiber cloth production according to the present application; Figure 1 The figure is an enlarged structural schematic diagram of position A in the present application;
[0020] Figure 3 The figure is an enlarged structural schematic diagram of position B in the present application. Figure 1 The figure is an enlarged structural schematic diagram of position B in the present application.
[0021] In the figure: 1-roller body, 11-roller shaft, 12-bidirectional thread structure. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] As Figures 1-3As shown, the embodiment provides a crease-proof roller for glass fiber cloth production, which comprises a roller body 1, characterized in that: the surface of the roller body 1 is provided with a bidirectional thread structure 12;
[0024] The bidirectional thread structure 12 is centered on the axial middle section of the roller body 1 and extends to both ends of the roller body 1, and the extension to the left end part of the roller body 1 is a right-handed thread, and the extension to the right end part of the roller body 1 is a left-handed thread, so that when the glass fiber cloth passes through the roller body 1 along the conveying direction, the bidirectional thread structure 12 applies a tension expanding from the middle to both sides to the cloth surface.
[0025] The pitch of the bidirectional thread structure 12 is variable, gradually increasing from the axial middle section to both ends of the roller body 1.
[0026] The thread depth of the bidirectional thread structure 12 is variable, gradually decreasing from the axial middle section to both ends of the roller body 1.
[0027] In the production process of ultra-thin glass fiber cloth, the crease-proof roller is used as a flattening roller; when the glass fiber cloth passes through the roller body 1 along the conveying direction, the bidirectional thread structure 12 applies a tension expanding from the middle to both sides to the cloth surface, the pitch of the bidirectional pitch structure gradually increases from the axial middle section to both ends of the roller body 1, and at the same time, the thread depth of the bidirectional thread structure 12 gradually decreases from the axial middle section to both ends of the roller body 1; on the basis of ensuring that the bidirectional thread structure 12 guides the glass fiber cloth to evenly expand from the middle to both sides and eliminates internal stress, the gradually changing pitch enables the middle dense thread to provide high-frequency fine adjustment and disperse the risk of creases; the gradually changing depth avoids the cloth edges from being stuck due to over-deep thread, and at the same time, the middle deep groove enhances the gripping force; due to the reasonable changes in pitch and depth, the tension is uniformly distributed, effectively preventing creases from occurring in the glass fiber cloth during flattening, and ensuring the flatness and quality of the glass fiber cloth.
[0028] As shown in the specific embodiment, Figures 2-3 In this embodiment, the thread cross-sectional shape of the bidirectional thread structure 12 is trapezoidal or circular arc-shaped.
[0029] Specifically, the thread cross-sectional shape of the bidirectional thread structure 12 is trapezoidal or circular arc-shaped; when the glass fiber cloth is high-density glass fiber cloth, the thread cross-section is trapezoidal, and due to the characteristics of the trapezoidal cross-section, the edge structure can enhance the lateral expansion force on the cloth; when the glass fiber cloth is thin cloth coated with resin on the surface, the thread cross-section is circular arc-shaped, and due to the characteristics of the circular arc-shaped cross-section, the circular arc-shaped thread cross-section can further reduce the friction coefficient on the surface of the glass fiber cloth and reduce damage to the glass fiber cloth.
[0030] As shown in the specific embodiment, Figure 1 In this embodiment, the pitch of the thread linearly or nonlinearly increases from the axial middle section to both ends of the roller body 1.
[0031] Specifically, the thread pitch increases non-linearly from the axial mid-section to both ends of the roller body 1. By adopting a specific non-linear variation curve, the tension distribution on the fabric surface can be controlled more precisely, which is more in line with the fabric tension exponential decay law. It is especially suitable for wide-width fabric machines with a width > 2m. In practical applications, this anti-crease roller is installed as a tension adjusting roller on the ultra-thin fiberglass cloth production line. Through the special design of the bidirectional thread structure 12, the fabric tension can be flexibly adjusted according to the conveying speed of the fiberglass cloth and the production process requirements, effectively avoiding crease problems caused by uneven tension and improving the product qualification rate.
[0032] The thread pitch increases linearly from the axial mid-section to both ends of the roller body 1, making the processing simpler.
[0033] like Figures 1-3 As shown, in this embodiment, the depth of the thread decreases linearly or non-linearly from the axial mid-section towards both ends of the roller body 1.
[0034] Specifically, the depth of the thread increases non-linearly from the axial mid-section to both ends of the roller 1. By adopting a specific non-linear variation curve, the tension distribution on the fabric surface can be controlled more precisely, which is more in line with the tension exponential decay law of the fabric. It is especially suitable for wide-width fabric machines with a width > 2m. In practical applications, the tension generated by the bidirectional thread structure 12, which extends from the middle to both sides, as well as the reasonable pitch and depth variation, ensure that the fiberglass cloth remains flat during the conveying process. This effectively prevents creases caused by friction, compression and other factors during the conveying process, and provides reliable fiberglass cloth for subsequent production processes.
[0035] Similarly, the depth of the thread increases linearly from the axial mid-section to both ends of the roller body 1, making the processing simpler.
[0036] like Figure 1 As shown, in this embodiment, the thread pitch at the axial mid-section is P1, and the thread pitch at the end of the roller body 1 is P2, where P2 > P1, and 5mm ≤ P1 ≤ 30mm, 10mm ≤ P2 ≤ 60mm.
[0037] Specifically, the thread pitch increases non-linearly from the axial mid-section towards both ends of the roller 1. By using a specific non-linear variation curve, the tension distribution on the fabric surface can be controlled more precisely. The thread pitch P1 at the axial mid-section is 15mm, and the thread pitch P2 at the end of the roller 1 is 30mm. The thread depth decreases non-linearly from the axial mid-section towards both ends of the roller 1. The thread depth H1 at the axial mid-section is 2.0mm, and the thread depth H2 at the end of the roller 1 is 0.8mm.
[0038] In practical application, the crease-proof roller is installed on the ultra-thin glass fiber cloth production line as a tension adjusting roller; through the special design of the bidirectional thread structure 12, the fabric tension can be flexibly adjusted according to the conveying speed of the glass fiber cloth and the production process requirements, the crease problem caused by uneven tension is effectively avoided, and the qualified rate of the product is improved.
[0039] As shown in Figures 1-3 In this embodiment, the thread depth at the axial middle section is H1, the thread depth at the end of the roller body 1 is H2, wherein H2 < H1, and 0.5mm ≤ H1 ≤ 3.0mm, 0.1mm ≤ H2 ≤ 1.0mm.
[0040] Specifically, on the basis of the above embodiment, the thread depth is revalued, the thread pitch P1 at the axial middle section is 20mm, the thread pitch P2 at the end of the roller body 1 is 40mm; the thread depth H1 at the axial middle section is 2.5mm, and the thread depth H2 at the end of the roller body 1 is 1.0mm.
[0041] In the production of ultra-thin glass fiber cloth, the crease-proof roller is used as a guide roller; in the process of guiding the glass fiber cloth conveying, the tension generated by the bidirectional thread structure 12 expanding from the middle to both sides, and the reasonable pitch and depth change, make the glass fiber cloth always keep flat state in the conveying process, effectively prevent the crease caused by friction, extrusion and other factors in the conveying process, and provide reliable quality glass fiber cloth for subsequent production process.
[0042] As shown in Figure 1 In this embodiment, the crease-proof roller is suitable for being used as a guide roller, a tension adjusting roller or a flattening roller in the production process of ultra-thin glass fiber cloth.
[0043] Specifically, the crease-proof roller can be used as a guide roller, a tension adjusting roller or a flattening roller according to different installation positions; by precisely matching and installing the roller shaft 11 with the corresponding specification bearing, the assembly of the crease-proof roller in the production line can be quickly completed.
[0044] Of course, for those skilled in the art, the present application is not limited to the details of the above exemplary embodiments, but also includes the same or similar structures that can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0045] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
[0046] The technologies, shapes, and structural parts not described in detail in the present application are well-known technologies.
Claims
1. A crease-resistant roller for fiberglass cloth production, comprising a roller body (1), characterized in that: The roller body (1) has a bidirectional thread structure (12) on its surface. The bidirectional thread structure (12) extends from the axial mid-section of the roller body (1) to both ends of the roller body (1), and the extension to the left end of the roller body (1) is divided into a right-hand thread, and the extension to the right end of the roller body (1) is divided into a left-hand thread, so that when the fiberglass cloth passes through the roller body (1) along the conveying direction, the bidirectional thread structure (12) applies a tension to the cloth surface that extends from the middle to both sides. The pitch of the bidirectional thread structure (12) is variable pitch, and the pitch gradually increases from the axial mid-section towards both ends of the roller body (1); The thread depth of the bidirectional thread structure (12) is variable, and the depth gradually decreases from the axial mid-section towards both ends of the roller body (1).
2. The anti-crease roller for fiberglass cloth production according to claim 1, characterized in that, The cross-sectional shape of the thread of the bidirectional thread structure (12) is trapezoidal or circular arc.
3. The anti-crease roller for fiberglass cloth production according to claim 1 or 2, characterized in that, The pitch of the thread increases linearly or non-linearly from the axial mid-section toward both ends of the roller (1).
4. The anti-crease roller for fiberglass cloth production according to claim 1 or 2, characterized in that, The depth of the thread decreases linearly or non-linearly from the axial mid-section toward both ends of the roller (1).
5. The anti-crease roller for fiberglass cloth production according to claim 1, characterized in that, The thread pitch at the axial mid-section is P1, and the thread pitch at the end of the roller body (1) is P2, where P2 > P1, and 5mm ≤ P1 ≤ 30mm, 10mm ≤ P2 ≤ 60mm.
6. The anti-crease roller for fiberglass cloth production according to claim 1, characterized in that, The thread depth at the axial mid-section is H1, and the thread depth at the end of the roller body (1) is H2, where H2 < H1, and 0.5mm ≤ H1 ≤ 3.0mm, 0.1mm ≤ H2 ≤ 1.0mm.
7. The anti-crease roller for producing fiberglass cloth according to any one of claims 1 to 6, characterized in that, The anti-crease roller is suitable for use as a guide roller, tension regulating roller, or flattening roller in the production process of ultra-thin fiberglass cloth.