阅读说明：本技术 展纤装置 (Fiber spreading device ) 是由 彭志刚 陈世明 陈铀征 于 2019-12-23 设计创作，主要内容包括：本发明公开一种展纤装置,用以展开碳纤维束。展纤装置包括出料卷、收料卷、振动滚轮以及第一气嘴。振动滚轮设置在出料卷与收料卷之间。振动滚轮接触碳纤维束。振动滚轮依旋转轴线旋转,且振动滚轮沿垂直于旋转轴线的振动方向振动。第一气嘴设置在振动滚轮与收料卷之间,并对碳纤维束吹气。(The invention discloses a fiber spreading device which is used for spreading a carbon fiber bundle. The fiber spreading device comprises a material outlet roll, a material receiving roll, a vibration roller and a first air nozzle. The vibration roller is arranged between the material outlet roll and the material receiving roll. The vibration roller contacts the carbon fiber bundle. The vibration roller rotates along the rotation axis, and the vibration roller vibrates along the vibration direction perpendicular to the rotation axis. The first air nozzle is arranged between the vibration roller and the material receiving roll and blows air to the carbon fiber bundle.)

1. A fiber spreading device for spreading a carbon fiber bundle, comprising:

discharging a material roll;

collecting a material roll;

the vibration roller is arranged between the discharging roll and the receiving roll, is contacted with the carbon fiber bundles, rotates along a rotation axis and vibrates along a vibration direction vertical to the rotation axis; and

the first air nozzle is arranged between the vibration roller and the material receiving roll and blows air to the carbon fiber bundle.

2. The fiber spreading device according to claim 1, further comprising an auxiliary roller, wherein the auxiliary roller is disposed between the vibration roller and the receiving roll, and the auxiliary roller contacts the carbon fiber bundle.

3. The fiber spreading device according to claim 2, wherein the first air nozzle is located between the vibration roller and the auxiliary roller, and the carbon fiber bundle has a first surface and a second surface opposite to the first surface, the vibration roller contacts the first surface, and the auxiliary roller contacts the second surface, and the first air nozzle blows air to the second surface.

4. The fiber spreading device according to claim 2, wherein the auxiliary roller is spaced from the discharge reel by a first distance, and the vibration roller is spaced from the discharge reel by a second distance, a ratio of the second distance to the first distance being between 0.92 and 0.95.

5. The fiber spreading device according to claim 4, wherein the position on the carbon fiber bundle where the air flow blown out by the first air nozzle falls is a third distance from the discharging reel, and a ratio of the third distance to the first distance is 0.93 to 0.98.

6. The fiber spreading device according to claim 1, further comprising a carrier, wherein the material outlet roll, the material receiving roll, the vibration roller and the first air nozzle are disposed on the carrier.

7. The fiber spreading device according to claim 6, further comprising a carriage and a vibrator disposed on the carriage, wherein the carriage is slidably disposed on the carrier, and the vibrating roller is pivotally disposed on the carriage.

8. The fiber spreading device according to claim 7, wherein the carrier has a sliding slot, and the carrier is slidably connected to the sliding slot, and the sliding slot extends in a direction parallel to the vibration direction.

9. The fiber spreading device according to claim 1, further comprising a second air nozzle, wherein the second air nozzle is located between the first air nozzle and the receiving roll, and the first air nozzle is located between the vibrating roller and the second air nozzle.

10. The fiber spreading device according to claim 1, further comprising a second air nozzle, wherein the second air nozzle is disposed between the discharging roll and the vibration roller, and the vibration roller is disposed between the second air nozzle and the first air nozzle.

11. A filament spreading device according to claim 1, wherein the number of strokes per minute of the oscillating roller is 5000 to 25000.

12. The fiber spreading device according to claim 1, wherein the vibration stroke of the vibration roller is between 0.3 and 3 mm.

Technical Field

The present invention relates to a fiber spreading device, and more particularly, to a fiber spreading device applied to carbon fibers.

Background

Carbon fiber is a composite material having characteristics of high strength (tensile strength) and high modulus (tensile modulus), and has advantages of light weight compared to metal or alloy materials, so it is widely adopted in various industries, for example: sports industry, medical industry, aerospace industry, electronic industry, or consumer industry. In practical application, the carbon fiber bundle must be first processed by fiber spreading to form a carbon fiber cloth, so as to achieve the purposes of thinning thickness, increasing the coating area, and the like. And then, coating the carbon fiber cloth on the surface of the workpiece to strengthen the structural strength of the workpiece.

Specifically, the larger the spread area of the carbon fiber bundle, the thinner the thickness of the carbon fiber cloth to be produced, and accordingly, the lighter the weight of the carbon fiber cloth per unit area. Because the workpiece to be reinforced is coated with a plurality of layers of carbon fiber cloth, under the same coating thickness, the thinner the carbon fiber cloth is, the more the number of layers of the carbon fiber cloth coated on the surface of the workpiece is, so that the reinforcing quality of the workpiece is more excellent. Therefore, how to improve the spreading uniformity and spreading width of the carbon fiber bundle and achieve the objectives of thinning the thickness and increasing the cladding area is a major research and development project in the industry.

Disclosure of Invention

The embodiment of the invention provides a fiber spreading device which is used for spreading a carbon fiber bundle. The fiber spreading device comprises a material outlet roll, a material receiving roll, a vibration roller and a first air nozzle. The vibration roller is arranged between the material outlet roll and the material receiving roll. The vibration roller contacts the carbon fiber bundle. The vibration roller rotates along the rotation axis, and the vibration roller vibrates along the vibration direction perpendicular to the rotation axis. The first air nozzle is arranged between the vibration roller and the material receiving roll and blows air to the carbon fiber bundle.

Drawings

FIG. 1A is a schematic view of a fiber deployment device according to a first embodiment of the present invention;

FIG. 1B is an enlarged partial schematic view of the vibrator, carrier, vibrating roller, and stage of FIG. 1A from another perspective;

FIG. 2 is a schematic view of a fiber spreading device according to a second embodiment of the present invention;

FIG. 3 is a schematic view of a fiber spreading device according to a third embodiment of the present invention;

FIG. 4 is a schematic view of a fiber spreading device according to a fourth embodiment of the present invention;

fig. 5 is a schematic view of a fiber spreading device according to a fifth embodiment of the present invention.

Description of the symbols

10: carbon fiber bundle

11: first surface

12: second surface

100. 100A to 100D: fiber spreading device

110: material discharging coil

120: material collecting roll

130: vibration roller

140: first air nozzle

141: second air tap

150: first auxiliary roller

160: second auxiliary roller

170: carrying platform

171: first chute

172: second chute

173: third chute

180: carrying frame

190: vibrator

AF: air flow

D1: first distance

D2: second distance

D3: third distance

ED: direction of extension

VD: direction of vibration

RA: axis of rotation

Detailed Description

Fig. 1A is a schematic view of a fiber spreading device according to a first embodiment of the present invention. Fig. 1B is a partially enlarged schematic view of the vibrator, the carrier, the vibrating roller, and the carrier of fig. 1A from another perspective. Referring to fig. 1A and fig. 1B, in the present embodiment, the fiber spreading device 100 includes a material outlet roll 110 and a material receiving roll 120, wherein the material outlet roll 110 is used for outputting the carbon fiber bundles 10 toward the side of the material receiving roll 120, and the carbon fiber cloth formed after the fiber spreading process is wound by the material receiving roll 120. For example, the material output roll 110 and the material input roll 120 may be active reels for providing the power required for transporting the carbon fiber bundles 10.

Specifically, the fiber spreading device 100 further includes a vibration roller 130 and a first air nozzle 140, wherein the vibration roller 130 and the first air nozzle 140 are disposed between the feeding roll 110 and the receiving roll 120, and the first air nozzle 140 is disposed between the vibration roller 130 and the receiving roll 120. In other words, after the carbon fiber bundle 10 is delivered from the delivery roll 110, the carbon fiber bundle 10 is first conveyed through the vibration roller 130, then conveyed through the first air nozzle 140, and finally the carbon fiber cloth formed by unwinding the carbon fiber bundle 10 is wound up by the take-up roll 120.

In the present embodiment, the vibration roller 130 contacts the carbon fiber bundle 10, and the first air nozzle 140 blows air to the carbon fiber bundle 10. Further, the carbon fiber bundle 10 has a first surface 11 and a second surface 12 opposite to the first surface 11, wherein the vibration roller 130 contacts the first surface 11 of the carbon fiber bundle 10, and the first air nozzle 140 blows air to the second surface 12 of the carbon fiber bundle 10. That is, the vibration roller 130 and the first air nozzle 140 are respectively located at both sides of the carbon fiber bundle 10.

On the other hand, the fiber spreading device 100 further includes an auxiliary roller, wherein the auxiliary roller may include a first auxiliary roller 150 and a second auxiliary roller 160, and the first auxiliary roller 150 and the second auxiliary roller 160 are disposed between the vibrating roller 130 and the receiving roll 120. The vibration roller 130, the first air nozzle 140, the first auxiliary roller 150, and the second auxiliary roller 160 are arranged in order on the transport path of the carbon fiber bundle 10. In detail, the vibration roller 130 contacts the first surface 11 of the carbon fiber bundle 10, the first auxiliary roller 150 contacts the second surface 12 of the carbon fiber bundle 10, and the second auxiliary roller 160 contacts the first surface 11 of the carbon fiber bundle 10. With the above-described setting of the contact relationship, the tension of the carbon fiber bundle 10 in conveyance is maintained to avoid the occurrence of slackening of the carbon fiber bundle 10.

In other embodiments, the number of the auxiliary rollers can be increased or decreased according to the actual design requirement. For example, if the distance between the material discharging roll and the vibration roller is long, an auxiliary roller may be added between the material discharging roll and the vibration roller to assist in conveying the carbon fiber bundle and maintain the tension of the carbon fiber bundle during conveyance. If the distance between the discharging roll and the receiving roll is short, the auxiliary roller may not be provided between the discharging roll and the vibration roller or between the vibration roller and the receiving roll on the premise of maintaining the tension of the carbon fiber bundle 10 during conveyance.

In this embodiment, the fiber spreading device 100 further includes a carrier 170, wherein the discharging roll 110, the receiving roll 120, the vibrating roller 130, the first air nozzle 140, the first auxiliary roller 150, and the second auxiliary roller 160 are disposed on the carrier 170, and the discharging roll 110, the receiving roll 120, the vibrating roller 130, the first auxiliary roller 150, and the second auxiliary roller 160 have a freedom of movement relative to the carrier 170. For example, height differences exist among the discharging roll 110, the receiving roll 120, the vibrating roller 130, the first auxiliary roller 150 and the second auxiliary roller 160, and heights of the discharging roll 110, the receiving roll 120, the vibrating roller 130, the first auxiliary roller 150 and the second auxiliary roller 160 on the carrying platform 170 can be adjusted according to actual conditions, so that smoothness of conveying of the carbon fiber bundles 10 is improved, and tension of the carbon fiber bundles 10 during conveying is maintained.

As shown in fig. 1A, the carrier 170 has a first chute 171, a second chute 172 and a third chute 173, wherein the first chute 171, the second chute 172 and the third chute 173 are sequentially arranged between the discharging roll 110 and the receiving roll 120, and the first chute 171, the second chute 172 and the third chute 173 are parallel to each other. In detail, the vibration roller 130 is disposed corresponding to the first chute 171 to adjust the height thereof on the stage 170 by the guidance of the first chute 171. The first auxiliary roller 150 slides on the second chute 172 to adjust the height of the carrier 170 through the guidance of the second chute 172. The second auxiliary roller 160 slides on the third chute 173 to adjust the height of the carrier 170 through the guidance of the third chute 173.

On the other hand, the position of the vibration roller 130 in the first sliding groove 171, the position of the first auxiliary roller 150 in the second sliding groove 172, and the position of the second auxiliary roller 160 in the third sliding groove 173 can be fixed by locking, engaging, magnetic attraction, or other suitable positioning mechanisms. It should be noted that the vibration stroke of the vibration roller 130 is not affected by the aforementioned positioning mechanism.

Referring to fig. 1A and fig. 1B, in the present embodiment, the fiber spreading device 100 further includes a carrier 180 and a vibrator 190 disposed on the carrier 180, wherein the carrier 180 is slidably disposed on the carrier 170 and slidably connected to the first chute 171, and the vibration roller 130 is pivotally disposed on the carrier 180. The vibrator 190 may adopt a pneumatic, hydraulic, or pneumatic-hydraulic vibration mechanism to drive the carrier 180 and the vibration roller 130 to vibrate back and forth along the vibration direction VD. The vibration roller 130 is slidably connected to the first sliding groove 171 through the carrier 180, and the position of the carrier 180 in the first sliding groove 171 can be fixed by locking, engaging, magnetic attraction, or other suitable positioning mechanisms, but the vibration stroke of the carrier 180 and the vibration roller 130 is not affected. Since the carrier 180 slides on the first sliding groove 171, the vibration direction VD of the carrier 180 and the vibration roller 130 is parallel to the extending direction ED of the first sliding groove 171. In other words, the first sliding groove 171 can be used to determine the vibration direction VD of the carrier 180 and the vibration roller 130.

On the other hand, the vibration roller 130 is configured to rotate along the rotation axis RA, and the vibration directions VD of the carriage 180 and the vibration roller 130 are perpendicular to the rotation axis RA. In detail, the vibration of the vibration roller 130 serves to slightly loosen or spread the carbon fiber bundle 10, and the loosening or spreading direction of the carbon fiber bundle 10 may be parallel to the rotation axis RA. On the transport path of the carbon fiber bundle 10, a first air nozzle 140 is located between the vibration roller 130 and the first auxiliary roller 150, and the first air nozzle 140 is used to blow the carbon fiber bundle 10 transported between the vibration roller 130 and the first auxiliary roller 150, wherein the vibration roller 130 contacts the first surface 11 of the carbon fiber bundle 10, and the first air nozzle 140 blows the second surface 12 of the carbon fiber bundle 10. The carbon fiber bundle 10 may still be kept in contact with the vibration roller 130 during the blowing of the carbon fiber bundle 10 by the first air nozzle 140, based on the blowing direction of the air flow AF by the first air nozzle 140. Since the carbon fiber bundle 10 has been slightly loosened or slightly spread by the vibration of the vibration roller 130, the carbon fiber bundle 10 can be uniformly spread to form the carbon fiber cloth after the carbon fiber bundle 10 is blown by the air flow AF of the first air nozzle 140.

Taking the application of the 12K carbon fiber bundle to the fiber spreading device 100 as an example, the spreading width of the 12K carbon fiber bundle is approximately between 12 and 28 mm. Taking the 24K carbon fiber bundle as an example for the fiber spreading device 100, the spreading width of the 24K carbon fiber bundle is approximately 25 to 33 mm. That is, by the fiber spreading mechanism of vibrating and blowing, the spreading uniformity and the spreading width of the carbon fiber bundle 10 processed by the fiber spreading device 100 are improved, and the purposes of thinning the carbon fiber cloth and increasing the coating area of the carbon fiber cloth are achieved.

Referring to fig. 1A, in the present embodiment, the first auxiliary roller 150 is spaced from the material roll 110 by a first distance D1, and the vibration roller 130 is spaced from the material roll 110 by a second distance D2. On the other hand, the position of the air flow AF from the first air nozzle 140 on the carbon fiber bundle 10 is a third distance D3 from the material outlet roll 110, and the position of the air flow AF from the first air nozzle 140 on the carbon fiber bundle 10 is closer to the vibration roller 130, so that the carbon fiber bundle 10 vibrated by the vibration roller 130 can be immediately blown by the air flow AF to be spread, and the carbon fiber bundle 10 is prevented from being condensed again.

In detail, the first distance D1 is greater than the third distance D3, and the third distance D3 is greater than the second distance D2. On the other hand, the ratio of the second distance D2 to the first distance D1 is 0.92 to 0.95, and the ratio of the third distance D3 to the first distance D1 is 0.93 to 0.98, the stroke count per minute (spm) of the vibration roller 130 is 5000 to 25000, and the vibration stroke of the vibration roller 130 is 0.3 to 3 mm. In cooperation with the distance setting, the vibration frequency setting, the amplitude setting and the blowing position setting, the fiber spreading device 100 can uniformly spread the carbon fiber bundle 10, so as to obtain a better fiber spreading effect.

Specifically, the first distance D1 is the shortest distance or horizontal distance between the axis of the discharging roll 110 and the axis of the first auxiliary roller 150, and the second distance D2 is the shortest distance or horizontal distance between the axis of the discharging roll 110 and the axis of the vibrating roller 130. On the other hand, the third distance D3 is the shortest distance or horizontal distance between the axial center of the outlet roll 110 and the point where the air flow AF blown out by the first air nozzle 140 falls on the carbon fiber bundle 10.

On the other hand, the blowing direction of the first nozzle 140 makes a first angle with the second surface 12 of the carbon fiber bundle 10, which is approximately between 60 and 85 degrees. The blowing direction of the first nozzle 140 and the vibration direction VD of the vibration roller 130 form a second angle, which is between about 70 and 100 degrees. Based on the setting of the first included angle and the second included angle, the fiber spreading effect of the first air nozzle 140 when blowing air to the carbon fiber bundle 10 is improved.

Other embodiments are listed below, and the same or similar design principles and technical effects are not repeated, and the differences between the embodiments are mainly introduced.

Fig. 2 is a schematic view of a fiber spreading device according to a second embodiment of the present invention. Referring to fig. 2, compared to the fiber spreading device 100 of the first embodiment, the fiber spreading device 100A of the present embodiment further includes a second air nozzle 141, on the conveying path of the carbon fiber bundle 10, the second air nozzle 141 is located between the first air nozzle 140 and the material receiving roll 120, and the first air nozzle 140 is located between the vibration roller 130 and the second air nozzle 141. Further, on the transport path of the carbon fiber bundle 10, a second air nozzle 141 is located between the first air nozzle 140 and the first auxiliary roller 150. The first air nozzles 140 and the second air nozzles 141 blow air to the carbon fiber bundle 10 in sequence, which is helpful for improving the fiber spreading effect of the carbon fiber bundle 10.

Fig. 3 is a schematic view of a fiber spreading device according to a third embodiment of the present invention. Referring to fig. 3, compared to the fiber spreading device 100 of the first embodiment, the fiber spreading device 100B of the present embodiment further includes a second air nozzle 141, on the conveying path of the carbon fiber bundle 10, the second air nozzle 141 is disposed between the material outlet roll 110 and the vibration roller 130, and the vibration roller 130 is disposed between the second air nozzle 141 and the first air nozzle 140. Therefore, before the carbon fiber bundle 10 is vibrated by the vibration roller 130, the second air nozzles 141 blow air into the carbon fiber bundle 10 to slightly loosen or spread the carbon fiber bundle 10. Next, the carbon fiber bundle 10 is vibrated by the vibration roller 130. Thereafter, the carbon fiber bundle 10 is blown by the first air nozzles 140. Based on the fiber spreading mechanism, the fiber spreading device 100B can uniformly spread the carbon fiber bundle 10, so as to obtain a better fiber spreading effect.

Fig. 4 is a schematic view of a fiber spreading device according to a fourth embodiment of the present invention. Referring to fig. 4, compared to the fiber spreading device 100 of the first embodiment, the fiber spreading device 100C of the present embodiment does not have the carrier 180 and the vibrator 190 shown in fig. 1A, and the vibration mechanism such as pneumatic, hydraulic, or pneumatic-hydraulic vibration mechanism can be built in or integrated with the vibration roller 130.

Fig. 5 is a schematic view of a fiber spreading device according to a fifth embodiment of the present invention. Referring to fig. 5, compared to the fiber spreading device 100 of the first embodiment, the fiber spreading device 100D of the present embodiment does not have the first auxiliary roller 150 and the second auxiliary roller 160 shown in fig. 1A.

In summary, the fiber spreading device of the embodiment of the invention adopts a fiber spreading mechanism of vibrating first and then blowing, and the vibration direction of the vibration roller is perpendicular to the rotation axis of the vibration roller. Therefore, the unfolding uniformity and the unfolding width of the carbon fiber bundles processed by the fiber unfolding device can be improved, and the purposes of thinning the thickness of the carbon fiber cloth, increasing the coating area of the carbon fiber cloth and the like are achieved.