Novel glass fabric secondary desizing device
By combining the desizing wheel with the nickel metal sleeve, the problem of poor desizing effect in the middle layer of fiberglass cloth was solved, achieving consistent desizing effect and efficient removal of slurry, thus improving product performance.
Patent Information
- Application Number
- CN202423296525.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing methods for secondary desizing of fiberglass cloth, the desizing effects differ between the middle layer and the outer and inner layers, resulting in a large amount of residual slurry, which affects the subsequent processing effect.
The desizing device is divided into two parts: a desizing wheel body and a nickel metal sleeve. After the desizing wheel body winds up the fiberglass cloth, the nickel metal sleeve is fitted on it. The high thermal conductivity and air-permeable design of the nickel metal sleeve ensure that the middle layer of fiberglass cloth is fully burned and desizing.
It improves the consistency of desizing effect of fiberglass cloth, reduces slurry residue, enhances the impregnation of fiberglass cloth and the bonding effect with downstream resin, and improves the heat resistance and electrical conductivity of the board.
Smart Images
Figure CN223951410U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a novel glass fiber cloth secondary desizing device belongs to electronic grade glass fiber cloth processing technical field. BACKGROUND
[0002] In order to reduce the broken silk hair in the process of weaving glass fiber cloth, it is necessary to carry out sizing treatment in the process of glass fiber cloth warping & sizing production, that is, a layer of protective sizing is wrapped on the surface of glass fiber yarn, thereby reducing the broken silk, hair and broken warp caused by the friction between glass cloth and weaving tool during weaving, but the sizing needs to be removed as much as possible before glass fiber cloth immersion treatment, which is divided into primary desizing and secondary desizing, about 99% of the sizing can be removed by primary desizing, and about 1% of the sizing needs to be removed by secondary desizing, secondary desizing is to remove sizing by long time high temperature burning, that is, glass fiber cloth is wound on the metal desizing wheel for desizing, and the effect of secondary desizing directly affects the effect of glass fiber cloth post-treatment, if there is more sizing residue on the surface of glass fiber yarn, the sizing residue will hinder the effective combination of glass fiber cloth and downstream resin after silane post-treatment, thereby affecting the key properties such as immersion property and heat resistance of downstream board, therefore, it is necessary to improve the secondary desizing effect of glass fiber cloth as much as possible.
[0003] The current conventional secondary desizing method of glass fiber cloth is to wind the glass fiber cloth after primary desizing on the iron desizing wheel, and then put it into the secondary desizing furnace for secondary desizing, the glass fiber cloth is generally 2000~4000m, the problem of this desizing method is that the desizing effects of the outer, middle and inner layers of glass fiber cloth are different, and the longer the glass fiber cloth, the more obvious the difference, generally the desizing effect of the outer layer is the best, the middle layer is the second, and the middle layer is the worst, because the middle layer of glass fiber cloth has the least contact with oxygen, the sizing cannot be fully burned, so the sizing residue is the most, of course, in most cases, the colors of the outer, middle and inner layers of glass fiber cloth do not show obvious differences, but the test of the organic matter combustion reduction of glass fiber cloth can still show that the combustion reduction of the middle layer is higher.
[0004] Therefore, there is an urgent need in the art for a secondary desizing device that can ensure the desizing effects of the outer, middle and inner layers of glass fiber cloth as consistent as possible. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a novel glass fiber cloth secondary desizing device, which can significantly improve the desizing effect of the middle layer of glass fiber cloth in the desizing wheel, reduce the sizing residue on the surface of glass fiber yarn, and thus ensure the desizing effects of the outer, middle and inner layers of glass fiber cloth as consistent as possible, thereby improving the immersion property of glass fiber cloth, making the downstream resin and glass fiber cloth more effectively combined, and thus improving the heat resistance and conductive anode wire resistance of the board.
[0006] To achieve the above technical purposes, reach the above technical effects, the application realizes the technical scheme as follows:
[0007] A novel glass fiber cloth secondary desizing device, comprising a rotating shaft, a desizing wheel body and an outer sleeve, the rotating shaft, the desizing wheel body and the outer sleeve are all cylindrical, the rotating shaft is coaxially arranged through the desizing wheel body for the erection rotation of the desizing wheel body, the desizing wheel body is internally provided with a hollow groove, a plurality of air holes one in communication with the hollow groove are uniformly arranged on the outer wall and the end face of the desizing wheel body, the outer sleeve is coaxially and detachably sleeved on the outer circle of the desizing wheel body, a plurality of air holes two are uniformly arranged on the outer wall of the outer sleeve, and the glass fiber cloth is divided into two rolls and is arranged between the outer wall of the desizing wheel body and the inner wall of the outer sleeve and on the outer wall of the outer sleeve.
[0008] Preferably, the inner diameter of the outer sleeve is larger than the outer diameter of the desizing wheel body, a winding space is formed between the inner wall of the outer sleeve and the outer wall of the desizing wheel body, and the winding space is used for winding the glass fiber cloth with a length in the range of 2000-2200 m.
[0009] Further, the sum of the length of the glass fiber cloth wound in the winding space and the length of the glass fiber cloth wound on the outer wall of the outer sleeve is not more than 4000 m.
[0010] Preferably, the outer sleeve is a nickel metal sleeve.
[0011] The novel glass fiber cloth secondary desizing device provided by the utility model has the following advantages:
[0012] The novel glass fiber cloth secondary desizing device provided by the utility model divides the existing desizing wheel into two parts, one part is a desizing wheel body, and the other part is a nickel metal sleeve, the desizing wheel body winds the glass fiber cloth with a length of more than 2000 m but not more than 2200 m, the desizing efficiency of the desizing wheel body is ensured, the nickel metal sleeve is sleeved on the desizing wheel body after the desizing wheel body winds enough glass fiber cloth, the thermal expansion coefficient of the nickel metal sleeve is smaller, and the heat conduction effect is better, then the glass fiber cloth is continuously wound on the outer sleeve, so that the middle glass fiber cloth can also be fully desized, the desizing effect of the middle glass fiber cloth and the impregnation of the glass fiber cloth are improved as a whole, the downstream resin and the glass fiber cloth can be more effectively combined, the heat resistance, the anode wire conductivity resistance and other performances of the plate are improved, the added value of the product is improved, the high-end market is quickly occupied, and the product is beneficial to the rapid occupation of the high-end market. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 A structure schematic view of the novel glass fiber cloth secondary desizing device provided by the utility model embodiment is shown in the figure;
[0014] Figure 2 A sectional view schematic view of the novel glass fiber cloth secondary desizing device provided by the utility model embodiment is shown in the figure;
[0015] Figure 3 The utility model provides a novel glass fiber cloth secondary desizing device and the assembly schematic drawing of glass fiber cloth provided for the embodiment of the utility model,
[0016] In the drawing,
[0017] 1 - rotation axis, 2 - desizing wheel body, 21 - hollow groove, 22 - air hole one, 3 - outer sleeve, 31 - air hole two, 4 - glass fiber cloth. Specific implementation
[0018] 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 part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled workers in the art without creative labor belong to the scope of protection of the utility model.
[0019] Referring to Figures 1-3 A novel glass fiber cloth secondary desizing device, comprising a rotation axis 1, a desizing wheel body 2 and an outer sleeve 3, the rotation axis 1, the desizing wheel body 2 and the outer sleeve 3 are all cylindrical bodies, the rotation axis 1 is coaxially arranged in the desizing wheel body 2 and fixedly connected with the desizing wheel body 2, the connection mode includes but is not limited to welding or bonding, the rotation axis 1 is used to realize the erection rotation of the desizing wheel body 2 during the desizing operation, the rotation erection of the rotation axis 1 is prior art, and will not be described in detail, the outer sleeve 3 is coaxially and detachably arranged on the outer circle of the desizing wheel body 2, and the glass fiber cloth 4 is divided into two rolls and arranged on the outer wall of the desizing wheel body 2 and the inner wall of the outer sleeve 3 and the outer wall of the outer sleeve 3 for secondary desizing operation.
[0020] Further, the hollow groove 21 is integrally formed in the desizing wheel body 2, the air hole one 22 in communication with the hollow groove 21 is uniformly arranged on the outer wall and the end face of the desizing wheel body 2, the arrangement of the hollow groove 21 and the air hole one 22 can make the glass fiber cloth 4 wound on the desizing wheel body 2 fully contact with air during the baking process, so as to ensure the desizing effect of the glass fiber cloth 4, the outer sleeve 3 is preferably a nickel metal sleeve, and a plurality of air hole two 31 are uniformly arranged on the outer wall, the thermal expansion coefficient of the nickel metal sleeve is smaller, and the heat conduction effect is better, and the air hole two 31 can further ensure the full baking of the glass fiber cloth 4 between the outer sleeve 3 and the desizing wheel body 2, and further improve the desizing effect of the middle part of the glass fiber cloth 4.
[0021] Referring to Figure 1 and Figure 2The outer sleeve 3 is directly sleeved and installed outside the middle layer fiberglass cloth 4, and is convenient to disassemble and assemble, and the length of the fiberglass cloth 4 wound in the winding space and the length of the fiberglass cloth 4 wound on the outer wall of the outer sleeve 3 are not more than 4000m in total.
[0022] When the number of meters of the fiberglass cloth 4 is not more than 2200m, the difference in the combustion reduction of the fiberglass cloth 4 of the outer, middle and inner layers of the desizing wheel is the smallest, and the abnormality of the impregnation and heat resistance of the fiberglass cloth 4 subjected to secondary desizing is rarely fed back by customers, but if the number of meters of the fiberglass cloth 4 of each desizing wheel is less than 2200m, the production efficiency will be affected, therefore, the space of the secondary desizing furnace is limited, and therefore, in most cases, the number of meters of the fiberglass cloth 4 subjected to secondary desizing is more than 2200m and at most 4000m, so as to ensure the best desizing effect.
[0023] The above is only a preferred embodiment of the present application, and is not any form and substantial limitation of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and supplements can be made without departing from the present application, and these improvements and supplements should be regarded as the protection range of the present application. For those skilled in the art, some changes, modifications and equivalent changes of the above disclosed technical content without departing from the spirit and scope of the present application are equivalent embodiments of the present application, and any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the range of the technical scheme of the present application.
Claims
1. A novel secondary desizing device for fiberglass cloth, characterized in that, The assembly includes a rotating shaft (1), a desizing wheel body (2), and an outer sleeve (3). The rotating shaft (1), the desizing wheel body (2), and the outer sleeve (3) are all cylindrical. The rotating shaft (1) is coaxially inserted through the desizing wheel body (2) for the mounting and rotation of the desizing wheel body (2). The desizing wheel body (2) has a hollow groove (21) inside. The outer wall and end face of the desizing wheel body (2) are evenly spaced with several ventilation holes (22) that communicate with the hollow groove (21). The outer sleeve (3) is coaxially and detachably fitted around the outer ring of the desizing wheel body (2). The outer wall of the outer sleeve (3) is evenly spaced with several ventilation holes (31). The fiberglass cloth (4) is divided into two rolls and is wound between the outer wall of the desizing wheel body (2) and the inner wall of the outer sleeve (3) and on the outer wall of the outer sleeve (3).
2. The novel secondary desizing device for fiberglass cloth as described in claim 1, characterized in that, The inner diameter of the outer sleeve (3) is larger than the outer diameter of the desizing wheel body (2). A winding space is formed between the inner wall of the outer sleeve (3) and the outer wall of the desizing wheel body (2). The winding space is used to wind a fiberglass cloth (4) with a length in the range of 2000~2200m.
3. The novel secondary desizing device for fiberglass cloth as described in claim 2, characterized in that, The sum of the length of the fiberglass cloth (4) wound in the winding space and the length of the fiberglass cloth (4) wound on the outer wall of the outer sleeve (3) shall not exceed 4000m.
4. The novel secondary desizing device for fiberglass cloth as described in claim 1, characterized in that, The outer sleeve (3) is a nickel metal sleeve.