CN116024735A - Production process of glass fiber continuous felt - Google Patents
Production process of glass fiber continuous felt Download PDFInfo
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- CN116024735A CN116024735A CN202310009103.3A CN202310009103A CN116024735A CN 116024735 A CN116024735 A CN 116024735A CN 202310009103 A CN202310009103 A CN 202310009103A CN 116024735 A CN116024735 A CN 116024735A
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- glass fibers
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- felt
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention relates to the technical field of glass fiber manufacturing, in particular to a production process of a glass fiber continuous felt, which comprises the following steps of uniformly arranging glass fiber yarn barrels on a yarn frame, dividing glass fibers by using a yarn dividing device, continuously throwing the separated glass fibers into a settling chamber by using a yarn feeder, and during the period, performing static electricity elimination operation by using a static electricity elimination device by using the yarn dividing device and the yarn feeder.
Description
Technical Field
The invention relates to the technical field of glass fiber manufacturing, in particular to a production process of a glass fiber continuous felt.
Background
The glass fiber continuous felt is formed by uniformly throwing glass fiber continuous filaments according to standard arrangement, distributing the filaments by random winding of an induced draft falling body and then pressing, and is a novel glass fiber non-woven reinforced substrate for composite materials. The continuous felt is mainly used for mechanical molding of glass fiber reinforced plastic, such as dry type transformer, resin transfer model molding (RTM) and the like, and has the excellent performances of high mechanical property, good insulating property, good corrosion resistance, good high temperature resistance and the like.
The glass fiber mats produced by the prior art are already suitable for most use scenarios, but because of the non-uniformity of thickness, the production costs are high in downstream production.
How to further improve the thickness uniformity of the glass fiber becomes a technical problem to be solved.
Disclosure of Invention
The purpose of the invention is that: overcomes the defects in the prior art and provides a production process of a glass fiber continuous felt with more uniform thickness.
In order to solve the technical problems, the invention adopts the following technical scheme:
a continuous glass fibre felt is prepared from glass fibre yarn drums through uniformly arranging them on yarn frame, dividing glass fibre by yarn dividing unit, continuously throwing the separated glass fibre into settling chamber by yarn feeder, and static eliminating static electricity.
Further, the glass fibers in the sedimentation chamber are adsorbed on the forming mesh belt by using a suction system to form a felt, and the gas sucked by the suction system and the gas input into the sedimentation chamber are circulating gases.
Further, the felt is subjected to the first needling and the second needling, so that the felt is kept fluffy, and the glass fibers are intertwined.
Further, metal detection was performed on the mat after the second needling.
Further, metal detection was performed on the mat after the first needling.
Further, the suction systems perform suction from both left and right sides simultaneously, respectively.
Further, the yarn feeding speed of the yarn feeder is 20-300m/s.
Further, the advancing speed of the felt is 60-120m/min.
Further, the yarn dividing device enables the arrangement interval between yarns to be 1-20mm.
Further, the number of the bobbins on the creel is 100-400.
The technical scheme of the invention has the beneficial effects that:
1. in the prior art, because yarn dividing device and wire feeder opportunity are continuous and contact with glass fiber and rub each other, can produce static on yarn dividing device and the wire feeder, lead to glass fiber can produce adhesion or winding when yarn dividing device and wire feeder, influence wire feeder efficiency, lead to wire feeder to throw into the glass fiber of settling chamber in width direction not even enough, influence the glass fiber felt thickness uniformity in width direction that produces, thereby certain embodiments in this application are through carrying out continuous static elimination operation to yarn dividing device and wire feeder and are avoided glass fiber adhesion winding on yarn dividing device and wire feeder, promote glass fiber felt thickness uniformity in width direction.
2. Certain embodiments in this application can guarantee through using circulated air to work in settling chamber and suction device that the atmospheric pressure in settling chamber and the suction device is steady, avoid causing the thickness of glass fiber mat to be different because the fluctuation of atmospheric pressure in the shaping in-process, have further promoted the thickness uniformity of glass fiber mat.
3. In certain embodiments of the present application, the suction device sucks air from the left and right sides simultaneously, so that the glass fibers can be stressed simultaneously in multiple directions, the glass fibers are settled more uniformly, and the thickness of the formed glass fiber mat is more uniform.
4. Certain embodiments of the present application detect whether there are residual needles in the glass fiber mat by performing a metal detection on the glass fiber mat after the needling process to improve the reliability of the glass fiber mat, avoid damaging the mold when the continuous glass fiber mat is applied to GMT board manufacture, and cause leakage explosion failure when applied to a dry transformer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein the method comprises the steps of
FIG. 1 is a workflow diagram of the present application;
fig. 2 is a flowchart of the operation of another embodiment of the present application.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention. The present invention will be described in detail by means of a schematic structural diagram, etc., which is only an example, and should not limit the scope of the present invention. In addition, the three-dimensional space of length, width and depth should be included in actual fabrication.
The present application is mainly used for manufacturing a glass fiber continuous needled felt, and the specification and the drawings of the present application describe in detail a production process of the glass fiber continuous needled felt.
Referring to fig. 1, in a process for producing a continuous glass fiber mat, glass fiber bobbins are uniformly arranged on a creel, glass fibers are split by a splitting device, and separated glass fibers are continuously thrown into a settling chamber by a wire feeder.
Wherein, the yarn dividing device ensures that the arrangement interval between yarns is 1-20mm, the specific interval can be 1mm,2mm,3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,15mm and 20mm, the yarn feeding speed of the yarn feeder is 20-300m/s, and the specific speed can be 20m/s, 40m/s, 60m/s, 80m/s, 100m/s, 120m/s, 140m/s, 160m/s, 200m/s, 240m/s, 280m/s and 300m/s.
In the prior art, because yarn dividing device and wire feeder opportunity are continuous and contact with glass fiber and rub each other, can produce static on yarn dividing device and the wire feeder, lead to glass fiber can produce adhesion or winding when yarn dividing device and wire feeder, influence wire feeder efficiency, lead to wire feeder to throw into the glass fiber of settling chamber in width direction not even enough, influence the glass fiber felt thickness uniformity in width direction that produces, thereby certain embodiments in this application are through carrying out continuous static elimination operation to yarn dividing device and wire feeder and are avoided glass fiber adhesion winding on yarn dividing device and wire feeder, promote glass fiber felt thickness uniformity in width direction.
Further, the glass fiber in the sedimentation chamber is adsorbed on the yarn pressing device by using a suction system to form a felt, and the gas sucked by the suction system and the gas input into the sedimentation chamber are circulating gases. The specific circulation mode is that a dust remover is added at the tail end of a suction fan of a suction system, and a clean air outlet of the dust remover is input into a settling chamber to realize air circulation in the settling chamber.
Preferably, the dust remover is a pulse dust remover.
Since the circulating gas is in a state of closed circulation, odor generated during operation is easily accumulated. In order to avoid peculiar smell in the circulating gas, a light-curing box can be additionally arranged between the dust remover and the sedimentation chamber so as to destroy stubborn malodorous gas molecules in the circulating gas.
Further, the suction systems respectively perform suction from the left side and the right side at the same time, so that the glass fibers can be uniformly sucked by flowing gas in the width direction when the glass fiber mat with a wider width is manufactured, and the thickness of the glass fiber mat in the width direction is kept consistent.
The present application can be divided into the following two embodiments according to the number of settling chambers:
example 1
Referring to fig. 1, the arrow is a flow path of glass fiber, the dotted line is a flow path of gas, the number of the settling chambers is one in the embodiment, the number of the wire feeders is one, the creels are arranged on one side of the settling chambers, and the suction system sucks air from below the settling chambers to flatten the glass fiber mat. In this embodiment, the suction system is capable of sucking air from both sides of the settling chamber, respectively.
Specifically, the suction system comprises two suction devices, namely a left suction device and a right suction device, each suction device comprises a suction fan and a dust remover, the suction fans are connected with a suction hopper through air pipes to suck from the lower part of the sedimentation chamber, the air outlets of the suction fans are connected with the air inlets of the dust remover, and the air outlets of the dust remover are connected with the sedimentation chamber.
Example 2
The difference between this embodiment and embodiment 1 is only the number of settling chambers, the number of wire feeders, and the arrangement of the creel.
Referring to fig. 2, the arrow is a flow path of glass fibers, the dotted line is a flow path of gas, the number of settling chambers is two in this embodiment, specifically, two settling chambers are arranged in tandem, the number of wire feeders is two, specifically, two wire feeders are also arranged in tandem, the number of creels is two, the two creels are respectively arranged at the outer sides of two groups of wire feeders corresponding to the wire feeders, and the suction system sucks air from below the settling chambers to make the glass fiber mats spread.
In this embodiment, the suction system is capable of sucking air from both the left and right sides of the settling chamber.
Specifically, the suction system comprises two suction devices, namely a first suction device and a second suction device, each suction device comprises a suction fan and a dust remover, the suction fans are connected with two suction hoppers through two air pipes to suck from the lower parts of two settling chambers respectively, an air outlet of each suction fan is connected with an air inlet of the dust remover, and an air outlet of the dust remover is connected with the settling chambers.
Certain embodiments in this application can guarantee through using circulated air to work in settling chamber and suction device that the atmospheric pressure in settling chamber and the suction device is steady, avoid causing the thickness of glass fiber mat to be different because the fluctuation of atmospheric pressure in the shaping in-process, have further promoted the thickness uniformity of glass fiber mat.
In certain embodiments of the present application, the suction device sucks air from the left and right sides simultaneously, so that the glass fibers can be stressed simultaneously in multiple directions, the glass fibers are settled more uniformly, and the thickness of the formed glass fiber mat is more uniform.
Preferably, in order to enable the thickness of the glass fiber mat to be adjustable, a wind homogenizing device is connected to the settling chamber in the present application, referring to fig. 1 and 2, specifically, the wind homogenizing device is a wind homogenizing plate, and the wind homogenizing plate can control the cross-sectional area of a lateral air inlet channel of the settling chamber.
When the thickness of the felt is required to be reduced, the air homogenizing plate is adjusted so that the area of air homogenizing holes on the air homogenizing plate is increased, the cross section area of the lateral air inlet channel is increased, the flow of air passing through the lateral air inlet channel is increased, and the thickness of the felt adsorbed on the forming mesh belt is thinned;
when the thickness of the felt is required to be increased, the air homogenizing plate is adjusted, so that the area of air homogenizing holes on the air homogenizing plate is reduced, the cross section area of the lateral air inlet channel is reduced, the gas flow passing through the lateral air inlet channel is reduced, and the thickness of the felt adsorbed on the forming mesh belt is increased.
Preferably, one settling chamber is arranged downstream of the other settling chamber, each creel corresponds to one settling chamber, and gas in each settling chamber is pumped away from the left side and the right side respectively.
The number of the glass fiber yarn barrels on each yarn frame is 50-400, and the specific number can be 50, 100, 150, 180, 200, 240, 260, 280, 300, 320, 350, 380 and 400.
And (3) yarn pressing is carried out on the settled and sucked glass fibers to form a felt, and the felt is subjected to first needling and second needling to be reinforced, so that the felt is kept fluffy.
The felt after being sucked is sent to a needling machine by a conveying device for needling for the first time, and the advancing speed of the felt is 60-120m/min, and the specific speed can be 60m/min, 70m/min, 80m/min, 90m/min, 100m/min, 110m/min and 120m/min.
Because through twice acupuncture, broken needle's phenomenon more easily takes place, in order to avoid taking the needle in the glass fiber mat after the manufacturing is accomplished, some embodiments in this application carry out metal detection after first acupuncture or/and second acupuncture to know whether there is broken needle in the felt child after the acupuncture, thus can handle the section that has broken needle before the rolling.
Certain embodiments of the present application perform metal detection of the batt after the second needling.
Certain embodiments of the present application perform metal detection of the mat after the first needling.
Certain embodiments of the present application detect whether there are residual needles in the glass fiber mat by performing a metal detection on the glass fiber mat after the needling process to improve the reliability of the glass fiber mat, avoid damaging the mold when the continuous glass fiber mat is applied to GMT board manufacture, and cause leakage explosion failure when applied to a dry transformer.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A process for producing a continuous mat of glass fibers, comprising the steps of: the glass fiber yarn barrels are uniformly arranged on the yarn frame, the yarn dividing device is used for dividing the glass fibers, the yarn feeder continuously throws the separated glass fibers into the settling chamber, and during the period, the yarn dividing device and the yarn feeder use the static electricity eliminating device for static electricity eliminating work.
2. A process for producing a continuous mat of glass fibers according to claim 1, comprising the steps of: and adsorbing the glass fibers in the settling chamber on the forming mesh belt by using a suction system to form a felt, wherein the gas sucked by the suction system and the gas input into the settling chamber are circulating gases.
3. A process for producing a continuous mat of glass fibers according to claim 2, comprising the steps of: and (3) performing the first needling and the second needling on the felt so that the felt is kept fluffy and the glass fibers are mutually entangled.
4. A process for producing a continuous mat of glass fibers according to claim 3, comprising the steps of: and (5) performing metal detection on the felt tire after the second needling.
5. The process for producing a continuous mat of glass fibers according to claim 4, comprising the steps of: metal detection is performed on the felt after the first needling.
6. The process for producing a continuous mat of glass fibers according to claim 5, comprising the steps of: the suction systems perform suction from both left and right sides simultaneously, respectively.
7. A process for producing a continuous mat of glass fibers according to claim 1, characterized in that: the yarn feeding speed of the yarn feeder is 20-300m/s.
8. A process for producing a continuous mat of glass fibers according to claim 2, characterized in that: the advancing speed of the felt is 60-120m/min.
9. A process for producing a continuous mat of glass fibers according to claim 1, characterized in that: the yarn dividing device makes the arrangement interval between yarns be 1-20mm.
10. A process for producing a continuous mat of glass fibers according to claim 1, characterized in that: the number of the yarn barrels on the yarn creel is 100-400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310009103.3A CN116024735A (en) | 2023-01-04 | 2023-01-04 | Production process of glass fiber continuous felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310009103.3A CN116024735A (en) | 2023-01-04 | 2023-01-04 | Production process of glass fiber continuous felt |
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| Publication Number | Publication Date |
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| CN116024735A true CN116024735A (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310009103.3A Pending CN116024735A (en) | 2023-01-04 | 2023-01-04 | Production process of glass fiber continuous felt |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082496A (en) * | 1963-07-11 | 1967-09-06 | Schuller Gmbh Glaswerk | Apparatus and method for the production of mats from chopped strands of glass filaments |
| GB1126026A (en) * | 1966-01-06 | 1968-09-05 | Ici Ltd | Non-woven filamentary structures |
| US4004324A (en) * | 1969-07-16 | 1977-01-25 | The Associated Paper Mills Limited | Apparatus for producing fibrous webs |
| US4217159A (en) * | 1977-10-26 | 1980-08-12 | Imperial Chemical Industries Limited | Laying oriented fibrous webs |
| CN1051715A (en) * | 1989-11-13 | 1991-05-29 | Ppg工业公司 | Improving one's methods of program control glass wire thread supplying device and manufacturing glass fiber mesh |
| CN1730764A (en) * | 2005-08-02 | 2006-02-08 | 中材科技股份有限公司 | Method for preparing continuous fiber reinforced thermoplastic plastic felt premix using needle punching |
| CN2880868Y (en) * | 2006-03-14 | 2007-03-21 | 南京费隆复合材料有限责任公司 | Glass fibre felt making device |
| CN103458715A (en) * | 2010-08-05 | 2013-12-18 | 奥驰亚客户服务公司 | Fabric having tobacco entangled with structural fibers |
| US20160194795A1 (en) * | 2014-03-31 | 2016-07-07 | Affco | Method and apparatus for producing nonwoven materials |
| CN112831906A (en) * | 2021-01-07 | 2021-05-25 | 泰山玻璃纤维有限公司 | Continuous glass fiber stitch-bonded felt production device and production method |
-
2023
- 2023-01-04 CN CN202310009103.3A patent/CN116024735A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082496A (en) * | 1963-07-11 | 1967-09-06 | Schuller Gmbh Glaswerk | Apparatus and method for the production of mats from chopped strands of glass filaments |
| GB1126026A (en) * | 1966-01-06 | 1968-09-05 | Ici Ltd | Non-woven filamentary structures |
| US4004324A (en) * | 1969-07-16 | 1977-01-25 | The Associated Paper Mills Limited | Apparatus for producing fibrous webs |
| US4217159A (en) * | 1977-10-26 | 1980-08-12 | Imperial Chemical Industries Limited | Laying oriented fibrous webs |
| CN1051715A (en) * | 1989-11-13 | 1991-05-29 | Ppg工业公司 | Improving one's methods of program control glass wire thread supplying device and manufacturing glass fiber mesh |
| CN1730764A (en) * | 2005-08-02 | 2006-02-08 | 中材科技股份有限公司 | Method for preparing continuous fiber reinforced thermoplastic plastic felt premix using needle punching |
| CN2880868Y (en) * | 2006-03-14 | 2007-03-21 | 南京费隆复合材料有限责任公司 | Glass fibre felt making device |
| CN103458715A (en) * | 2010-08-05 | 2013-12-18 | 奥驰亚客户服务公司 | Fabric having tobacco entangled with structural fibers |
| US20160194795A1 (en) * | 2014-03-31 | 2016-07-07 | Affco | Method and apparatus for producing nonwoven materials |
| CN112831906A (en) * | 2021-01-07 | 2021-05-25 | 泰山玻璃纤维有限公司 | Continuous glass fiber stitch-bonded felt production device and production method |
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