KR102516285B1 - Carbon weaving manufacturing device - Google Patents

Abstract

According to the present invention, a carbon weaving device comprises: a warp yarn supply means supplying a plurality of warp yarns made of carbon fiber; a bobbin in which weft yarns made of the carbon fiber are wound and stored; a weaving means receiving the warp yarns and the weft yarns from the warp yarn supply means and bobbin and weaving the same; a phase maintaining means guiding the weft yarns unwound from the bobbin to maintain a constant phase; a weft yarn detection means detecting whether the weft yarns are cut between the phase maintaining means and the weaving means; and a tension generation means located between the weft yarn detection means and the phase maintaining means to maintain tension by applying force to the weft yarns. According to the present invention, the carbon fiber can be woven uniformly and evenly.

Description

Carbon weaving device {Carbon weaving manufacturing device}

The present invention relates to a carbon weaving apparatus, and relates to a carbon weaving apparatus provided with a phase maintaining means to prevent twisting of the weft yarn by supplying the weft yarn wound on a bobbin while maintaining a certain phase when continuously supplying the weft yarn.

The present invention relates to a carbon weaving device capable of preventing weaving defects in advance by providing a weft detecting means for maintaining contact with weft yarns but detecting phase breakage due to a change in the magnitude of frictional force.

The present invention relates to a carbon weaving apparatus having a tension generating means between a weft detecting means and a phase maintaining means to apply tension to the weft to prevent excessive supply of the weft.

The present invention relates to a carbon weaving device in which the generation of static electricity can be prevented by adopting a ceramic material at a part in contact with the weft yarn on a moving path of the weft yarn.

In general, as structural materials for civil engineering, buildings, automobiles, and ships, steel plates such as ultra-high-strength steel, non-ferrous metal plates such as aluminum or magnesium, as well as carbon fiber reinforced plastics (CFRP: CARBON FIBER REINFORCED PLASTICS) or fiber reinforced plastics (FRP: Fiber Reinforced Plastic) and other plastic composite materials are applied.

In particular, carbon fiber reinforced plastics have high specific strength and are light and strong. In addition, carbon fiber has the same degree of tensile strength as high tensile steel in the fiber direction, has a higher modulus of elasticity than titanium, and has a specific gravity of 60% of aluminum, making it an ultra-light body.

In addition, there is almost no thermal contraction and thermal expansion, and the dimensional accuracy is extremely high. That is, CFRP's thermal expansion coefficient in the fiber direction is almost equal to zero, and it shrinks slightly at high temperatures. Therefore, when laminated by the lamination method, a carbon fiber reinforced plastic having a thermal expansion coefficient of 0 can be obtained.

In addition, carbon fiber reinforced plastics have advantages of greater vibration absorption and greater damping rate than metals due to the interaction between resin and fiber, so they are used as structural materials for civil engineering, buildings, automobiles, and ships, where high strength and light weight are trending. usage is on the rise.

For example, Korean Patent Publication No. 10-2016-0091706 discloses a fabric structure in which ferroelectric fibers 610 and carbon fibers 620 are combined as shown in FIG. 1 .

However, FIG. 1 is configured to necessarily include ferroelectric fibers 610 in addition to carbon fibers 620, and does not suggest a fabric made of only carbon fibers.

Meanwhile, FIG. 2 is a schematic diagram showing the structure of a carbon fiber high-speed weaving apparatus using an air jet loom disclosed in Korean Patent Publication No. 10-2016-0004013, in which warp yarns 1 and weft yarns 2 are applied as carbon yarns, and relay nozzles In (3), a structure is disclosed in which several holes are formed, and air is discharged from the middle hole to protect the weft yarn (2).

However, the prior art of FIG. 2 does not have a device for detecting the state in which the warp yarn 1 or the weft yarn 2 is broken or a device for preventing loose supply (overfeeding), so there is a problem in that the defective rate is high.

An object of the present invention is to solve the problems of the prior art as described above, and a phase maintaining means is provided to prevent twisting of the weft by supplying the weft while maintaining a certain phase when continuously supplying the weft thread wound on the bobbin. It is to provide a carbon weaving apparatus.

Another object of the present invention is to provide a carbon weaving device capable of preventing weaving defects in advance by providing a weft sensing means for maintaining contact with the weft but detecting phase breakage due to a change in the magnitude of frictional force.

Another object of the present invention is to provide a carbon weaving device having a tension generating means between the weft detecting means and the phase maintaining means to apply tension to the weft to prevent excessive supply of the weft.

Another object of the present invention is to provide a carbon weaving device in which the generation of static electricity can be prevented by adopting a ceramic material at a part in contact with the weft yarn on a moving path of the weft yarn.

The carbon weaving apparatus according to the present invention includes a warp supply means for supplying a plurality of warp yarns of which carbon fibers are adopted, a bobbin in which weft yarns of which carbon fibers are wound and stored, and the warp supply means Weaving means for weaving by receiving warp and weft yarns from the bobbin, phase maintaining means for guiding the weft yarn unwound from the bobbin to maintain a certain phase, and weft yarn for detecting whether or not the weft is cut between the phase maintaining means and the weaving means. It is characterized in that it is configured to include a detecting means, and a tension generating means located between the weft detecting means and the phase maintaining means to maintain tension by applying force to the weft.

The weft detecting means is characterized in that it detects the breakage of the weft yarn in the presence or absence of frictional force generated by contacting one side of the outer surface with the weft yarn.

The phase maintaining means is characterized in that the inner size decreases in one direction, and a weft through hole is provided therein to guide the weft to the outside.

The tension generating means includes a bushing having a perforated inside and formed of a ceramic material, a support block supporting the bushing, an elevating plate elevating with respect to the support block, and a weft thread passing through the bushing by providing elastic force to the elevating plate. It is characterized in that it is configured to include an elastic member that generates tension and a release limiting sphere for limiting the release of the elastic member.

It is characterized in that the weft yarns that sequentially move the phase maintaining means, the tension generating means, and the weft detecting means come into contact with the wear-resistant member.

In the present invention, a phase maintaining means is provided to prevent twisting of the weft yarn by supplying the weft yarn wound on the bobbin while maintaining a certain phase when continuously supplying the weft yarn.

Therefore, the carbon fibers can be uniformly and evenly woven.

In addition, there is an advantage in that weaving defects can be prevented in advance by providing a weft sensing means for maintaining contact with the weft but detecting the phase break due to the change in the magnitude of the frictional force.

In addition, by providing a tension generating means between the weft detecting means and the phase maintaining means to apply tension to the weft yarns, excessive supply of the weft yarns can be prevented in advance.

In addition, by adopting a ceramic material at a part in contact with the weft yarn on the moving path of the weft yarn, generation of static electricity can be prevented, and cutting of the weft yarn due to excessive friction can be prevented.

1 is a schematic view showing the structure of a fabric in which ferroelectric fibers and carbon fibers are combined disclosed in Korean Patent Publication No. 10-2016-0091706;
Figure 2 is a schematic diagram showing the structure of a carbon fiber high-speed weaving device using an air jet loom disclosed in Korean Patent Publication No. 10-2016-0004013.
Figure 3 is a real picture showing the structure of the carbon weaving device according to the present invention.
Figure 4 is a real picture showing the structure of the phase maintaining means, which is one component in the carbon weaving apparatus according to the present invention.
5 is a real photograph showing the structure of a weft detecting means, which is one component in the carbon weaving apparatus according to the present invention.
Figure 6 is a real picture showing the structure of the tension generating means, which is one component in the carbon weaving device according to the present invention.
Figure 7 is a longitudinal cross-sectional view showing the internal structure of the tension generating means, which is one component in the carbon weaving apparatus according to the present invention.
8 is a longitudinal cross-sectional view showing a state in which tension generating means, which is one component of the carbon weaving apparatus according to the present invention, releases restraints on the weft yarns.

Hereinafter, the carbon weaving apparatus 100 according to the present invention will be described with reference to FIGS. 3 and 4 attached.

Prior to this, the terms or words used in this specification and claims should not be interpreted in a conventional and dictionary sense, and the inventor may appropriately define the concept of the term in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can replace them at the time of the present application. It should be understood that there may be waters and variations.

3 shows a real picture showing the structure of the carbon weaving apparatus 100 according to the present invention, and FIG. 4 shows the structure of the phase maintaining means 140, which is one component of the carbon weaving apparatus 100 according to the present invention. The actual picture shown is shown.

As shown in the drawing, the carbon weaving device 100 according to the present invention is a device for weaving a fabric made of carbon fiber, and a plurality of rolled carbon fiber bundles are disposed at the rear, and these carbon fiber bundles are supplied as warp yarns 10. It is supplied while being released forward in a state stored in the inclined supply means 110.

Also, a bobbin 120 is provided on the front right side of the inclined supply means 110. The bobbin 120 stores and supplies the wound weft 20, and since the weft 20 is supplied in a direction orthogonal to the warp 10, the side of the carbon weaving device 100 The bobbin 120 may be arranged as shown in FIG. 3 to increase space utilization, or the weft thread 20 may be supplied in a clockwise rotation state as shown in FIG. 4.

A weaving means 130 is disposed in front of the warp supply means 110. The weaving means 130 receives a plurality of warp yarns 10 from the warp supply means 110 and weaves 20 from the bobbin 120, and since the structure of a general weaving device is the same, detailed description is omitted.

A phase maintaining means 140 is installed in front of the bobbin 120 . The phase maintaining means 140 is configured to maintain a certain phase when guiding the weft yarn 20 released from the bobbin 120 forward.

That is, as the weft yarn 20 is wound around the bobbin 120 with a uniform thickness, it is wound while moving in the left/right direction.

Therefore, the starting points of the weft threads 20 released from the bobbin 120 are different, and the weft threads 20 whose starting points are variable can cause twist. In order to prevent such a twisting defect in advance, the phase maintaining means 140 guides the weft yarn 20 to be discharged only in a certain phase while passing through the inside.

To this end, the phase maintaining means 140 has a cone shape and is configured such that its inner diameter decreases toward the front, and a through hole 142 is bored at its tip.

A weft detecting means 150 is installed on the right side of the weaving means 130, and a tension generating means 170 is installed between the weft detecting means 150 and the phase maintaining means 140.

Hereinafter, a detailed configuration of the weft detecting means 150 will be described with reference to FIG. 5 attached thereto.

5 shows a real picture showing the structure of the weft detecting means 150, which is one component in the carbon weaving apparatus 100 according to the present invention.

The weft detecting means 150 is fixed to the bracket 152 installed on one side of the weaving means 130 to maintain a certain position, and while guiding the weft 20 passing through the tension generating means 170 upward, the weft ( 20) is a component that detects disconnection.

To this end, the weft detecting means 150 is configured to include a sensor body 154 fixed to the bracket 152 and providing positive power to the upper side, and a ceramic on the upper surface of the sensor body 154, so that the weft yarn 20 and The ceramic sensor 156 detects whether or not the weft yarn 20 is broken by contacting with the presence or absence of frictional force through the anode power supplied from the sensor body 154, and when the weft yarn 20 moves over the weft sensing means 150 It is configured to include a pair of sensor guides 158 forming a moving path of the weft yarn 20 so as to maintain contact with the ceramic sensor 156.

Therefore, when the weft yarn 20 moves in a state where the lower side of the sensor guide 158 and the upper surface of the ceramic sensor are in contact, the sensor body 154 senses the movement of the weft yarn 20 due to frictional force, and the sensor body 154 is interlocked with a control panel (not shown) that controls the carbon weaving device 100 to adjust the timing at which the motion of the weft yarn 20 should be detected.

More specifically, the weft 20 is repeatedly supplied and stopped during the process of weaving the carbon fabric. During supply, it is necessary to detect whether or not it is broken using frictional force, but at the time of stopping the supply of the weft 20, the frictional force This non-occurring state should not be mistaken for a state in which the weft yarn 20 is broken. Therefore, the sensor body 154 receives recognition from the control panel of when the weft yarn 20 should be supplied and when it stops, and detects whether the frictional force with the weft yarn 20 is broken or stopped. do.

Detailed configuration of the tension generating means 170 will be described below with reference to FIGS. 6 to 8 attached thereto.

6 shows a real picture showing the structure of the tension generating means 170, which is one component of the carbon weaving device 100 according to the present invention, and FIG. 7 shows one component of the carbon weaving device 100 according to the present invention. A longitudinal cross-sectional view showing the internal structure of the tensile force generating means 170 is shown, and FIG. A longitudinal cross-sectional view showing a state in which the is released is shown.

First, as shown in FIG. 6, the tension generating means 170 performs a function of guiding the moving direction of the weft yarn 20 exiting the phase maintaining means 140 to the weft detecting means 150, and the weaving means 130 After pulling the weft 20 strongly for the purpose, it is configured to generate tension so that the weft 20 can be sensed to be unwound more than necessary.

That is, the tension generating means 170 acts to stop the supply of the weft 20 after supplying only the length of the weft 20 required for weaving, and the range in which the weft 20 does not break due to excessive tension. It is configured to generate tension within.

To this end, the tension generating means 170 includes a bushing 172 having a perforated interior and formed of a ceramic material, a support block 174 supporting the bushing 172, and an elevation moving up and down with respect to the support block 174. The plate 175 and the elastic member 176 that generates tension in the weft yarn 20 passing through the bushing 172 by providing elastic force to the elevating plate 175, and limiting the departure of the elastic member 176 It is configured to include a release limiting sphere 178 to do.

The bushing 172 is made of a cylindrical shape and is made of a ceramic material so that the amount of wear and friction when in contact with the weft yarn 20 passing through the inside can be minimized.

The bushing 172 maintains a state inserted into the support block 174, and an elevating plate 175 is provided on the outside of the support block 174. The elevating plate 175 has a disk shape with a perforated center, is configured to be elevating in the height direction of the support block 174, and pressurizes the weft thread 20 by narrowing the opening of the bushing 172. is configured so that

An elastic member 176 is positioned above the elevating plate 175 to receive downward elastic force. Therefore, due to the elastic force of the elastic member 176, the elevating plate 175 can apply pressure to the weft yarn 20 located on the lower side, and this pressure acts as tension on the weft yarn 20.

Therefore, when the elevating plate 175 receives the elastic restoring force by the elastic member 176 and moves downward, tension is generated by pressing the weft 20 as shown in FIG. 7, and the elevating plate 175 If it moves upward and does not cover the opening of the bushing 172, the weft 20 does not contact the lifting plate 175 and is in a state as shown in FIG. 8, so that it is free to move without tension. .

On the upper side of the elastic member 176, a release limiting sphere 178 is located. The release limiting sphere 178 is configured to generate an elastic restoring force by limiting the upward movement of the elastic member 176, and the distance away from the support block 174 can be adjusted so that the elastic member 176 is elastic. It is preferable to be configured to adjust the size of the restoring force.

On the other hand, in the carbon weaving device 100, a wear-resistant member is applied to a portion in contact with the weft yarn 20 while moving. That is, all of the weft threads 20 that sequentially move the phase maintaining means 140, the tension generating means 170, and the weft detecting means 150 are all designed to come into contact with the ceramic material.

The scope of the present invention is not limited to the embodiments exemplified above, and many other modifications based on the present invention will be possible for those skilled in the art within the above technical scope.

10. Warp 20. Weft
100. Carbon weaving device 110. Warp supply means
120. Bobbin 130. Weaving means
140. Phase maintaining means 142. Through hole
150. Weft detection means 152. Bracket
154. sensor body 156. ceramic sensor
158. Sensor guide 170. Tension generating means
172. Bushing 174. Support block
175. Elevating plate 176. Elastic member
178. Breakaway ball

Claims (5)

delete delete delete warp supply means for supplying a plurality of warp yarns in which carbon fibers are adopted; a bobbin in which the carbon fiber weft is wound and stored; a weaving means for weaving by receiving the warp and weft threads from the warp supply means and the bobbin; a phase maintaining means for guiding the weft yarn unwound from the bobbin to the outside while maintaining a certain phase; a weft detecting means for detecting whether or not the weft has been cut based on the presence or absence of frictional force generated by contact between the weft and one side of the outer surface between the phase maintaining means and the weaving means; It is configured to include a tension generating means located between the weft detecting means and the phase maintaining means to maintain tension by applying force to the weft,
The tension generating means,
A bushing with a perforated interior and formed of a ceramic material;
A support block supporting the bushing;
An elevation plate that moves up and down with respect to the support block;
An elastic member for generating tension in the weft yarn passing through the bushing by providing elastic force to the elevating plate;
Carbon weaving apparatus characterized in that it comprises a release limiting sphere for limiting the release of the elastic member.
[Claim 5] The carbon weaving apparatus according to claim 4, wherein the phase maintaining means, the tension generating means, and the weft yarn detecting means are sequentially moved to contact the wear-resistant member.

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