CN211921782U - Carbon fiber precursor twisting device - Google Patents

Abstract

The utility model relates to a carbon fibre precursor twisting device, including twisting machine, twisting machine frame, pulley, upper portion filament plate, anterior partial filament plate, electrically controlled device, motor reducer provides power, and a carbon fibre precursor silk section of thick bamboo is rotary motion around self central line, and the silk bundle of giving out according to the certain speed is in addition certain twist through the magnetic ring centre bore in the swing arm, changes the traffic direction through the pulley and gets into follow-up production facility. The carbon fiber precursor filament tube is vertically arranged on the rotary chassis, is fixed through the central upright post and the upper cover butterfly nut, the speed reducer motor assembly is fixed on the fixed chassis through the bolts, the fixed chassis is arranged on the frame, and the central hole of the filament bundle swing arm on the precursor filament tube penetrates out. The advantages are that: the weaving processability of the silk thread can be improved, the requirements of the appearance and different purposes of the fabric can be met, and the performance of the carbon fiber finished product is effectively improved.

Description

Carbon fiber precursor twisting device

Technical Field

The utility model belongs to carbon fiber production facility field relates to a device that is used for twisting carbon fiber precursor silk bundle, improves carbon fiber product quality.

Background

With the rapid increase of the domestic carbon fiber yield, the domestic common civil carbon fiber is basically in a saturated state. Because of the particularity of the production process, the high-quality carbon fiber is not produced at home basically, and the price is always high. At present, the production equipment and the carbonization process of the domestic carbon fiber are basically mature, high-quality carbon fiber precursors are indispensable for producing the high-quality carbon fiber, and the international huge heads form monopoly for the high-quality carbon fiber precursors and are not sold in China basically. Each carbon fiber production enterprise invests a large amount of capital to research and develop high-quality carbon fiber precursors, and is expected to break monopoly, but the research and development of the high-quality carbon fiber precursors cannot be completed in a short time. The method for improving the strength and other indexes of the carbon fiber finished product by twisting the precursor in the prior production process and later period becomes a simple solution, but because no professional carbon fiber precursor twisting equipment is provided in China, the twisted carbon fiber is rarely produced in China.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to not enough in the current ordinary carbon fiber precursor technique, provide an use ordinary carbon fiber precursor to produce the off-the-shelf way of higher quality carbon fiber, carry out the device of twisting to ordinary carbon fiber precursor.

For solving the technical problem of the utility model, adopt the following technical scheme: a carbon fiber precursor twisting device comprises a pulley, an upper partial filament plate, a twisting machine frame, a front partial filament plate, a twisting machine and an electric control part, wherein the twisting machine comprises a swing arm, a butterfly nut, an upper cover, a central upright post, a rotating chassis, a fixed chassis and a speed reducer motor assembly, the twisting machine is fixed on the twisting machine frame, the pulley is connected below the upper partial filament plate and the front partial filament plate, the fixed chassis is arranged on the twisting machine frame after the upper partial filament plate, the speed reducer motor assembly is fixed on the fixed chassis, the speed reducer motor assembly is connected with and drives the rotating chassis to rotate, the central upright post is fixed on the rotating chassis, a precursor filament tube is vertically arranged on the rotating chassis, the central upright post penetrates out of the precursor filament tube, the upper cover is sleeved on the upper part of the central upright post, a step round bulge is arranged in the middle of the upper cover, a through hole is arranged on the step round bulge, and a disc-shaped spring with a large, the outer wall of small diameter cover has the bearing on the step, the swing arm is fixed on the swing arm mount pad, the swing arm mount pad is equipped with circular recess down, hold belleville spring in the circular recess, bearing and step round bulge, circular recess top trompil, the center pillar is worn out through the step round bulge, the butterfly nut is installed to the part that exposes, fasten upper cover and precursor silk section of thick bamboo, the silk bundle on the precursor silk section of thick bamboo is passed by the swing arm centre bore, rotary motion is done around self central line to the precursor silk section of thick bamboo, the silk bundle of giving out according to the certain speed is added certain twist through the swing arm centre bore, change the traffic direction through the pulley and get into follow-up production equipment, automatically.

The belleville springs are below the bearings.

The bottom of the upper cover is provided with a circular ring which is buckled with the upper edge of the raw silk barrel.

The swing arm centre bore adopts the zirconia material.

The utility model has the advantages that: the motor and the speed reducer are used for providing rotary motion for twisting the carbon fiber precursor, the drawn precursor filament bundle is twisted like a towel when a face is washed, so that the longitudinal connection among the fibers is fixed, and the bending and twisting of the fibers are utilized. The twisting process changes the appearance effect or physical and mechanical properties of the tows, which not only can improve the weaving processability of the silk thread, but also can meet the requirements of the appearance and different purposes of the fabric, and effectively improve the performance of the carbon fiber finished product.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a perspective view of the present invention;

FIG. 4 is a schematic view of a twisting machine;

FIG. 5 is a cross-sectional view of the upper cover;

reference numbers in the figures: 1-pulley, 2-filament bundle, 3-swing arm, 4-butterfly nut, 5-upper cover, 6-precursor filament tube, 7-central column, 8-rotary chassis, 9-fixed chassis, 10-speed reducer motor assembly, 11-upper partial filament plate, 12-twister frame, 13-front partial filament plate, 14-twister, 15-step round bulge, 16-disc spring, 17-bearing and 18-swing arm mounting seat.

Detailed Description

A carbon fiber precursor twisting device comprises a pulley 1, an upper partial filament plate 11, a twisting machine frame 12, a front partial filament plate 13, a twisting machine 14 and an electric control part, wherein the twisting machine 14 comprises a swing arm 3, a butterfly nut 4, an upper cover 5, a central upright post 7, a rotating chassis 8, a fixed chassis 9 and a speed reducer motor assembly 10. The twister 14 is secured to the twister frame 12. The pulley 1 is attached below the upper partial wire plate 11 and the front partial wire plate 13. The front partial filament plate 13 is behind the upper partial filament plate 11. The fixed chassis 9 is mounted on the frame 12 of the twisting machine. The reducer motor assembly 10 is fixed on the fixed chassis 9 by using bolts. The reducer motor assembly 10 is connected to drive the rotating chassis 8 to rotate. The electric control part comprises a control switch and a frequency conversion device, and the rotating speed of the speed reducer motor assembly 10 is controlled according to the requirement of a produced product so as to obtain the required twist. A central upright post 7 is fixed on the rotary chassis 8, the precursor fiber tube 6 is vertically arranged on the rotary chassis 8, and the central upright post 7 penetrates out of the precursor fiber tube 6. The upper part of the central upright post 7 is sleeved in the upper cover 5. The middle of the upper part of the upper cover 5 is provided with a step round bulge 15, and the step round bulge 15 is provided with a hole which is through up and down. The large diameter part below the step round bulge 15 is sleeved with a disk spring 16, and the small diameter outer wall above the step is sleeved with a bearing 17. The swing arm 3 is fixed on the swing arm mounting seat 18. The swing arm mounting seat 18 is provided with a downward circular groove, a disc spring 16, a bearing 17 and a step boss 15 are accommodated in the circular groove, and the top of the circular groove is provided with a hole to provide a space for the rotation of the butterfly nut 4. The central upright post 7 penetrates out of the step boss 15, the exposed part is provided with the butterfly nut 4, the upper cover 5 and the raw silk tube 6 are fastened, the bottom of the upper cover 5 is provided with a ring, and the ring is buckled with the upper edge of the raw silk tube 6. The tows 2 on the raw silk tube 6 pass through the center hole of the swing arm 3, the raw silk tube 6 rotates around the center line of the raw silk tube, certain twist is added to the tows discharged at a certain speed through the center hole of the swing arm 3, the tows are conveyed to the magnetic rings of the upper part filament dividing plate 11 and the front part filament dividing plate 13 through the pulley changing the running direction, and then the tows are run to subsequent production equipment to avoid twisting the tows together.

The twisting machine 14 is utilized to enable the carbon fiber precursor filament tube to rotate around the central line of the carbon fiber precursor filament tube, the precursor is gradually released from the filament tube according to a certain speed, the fibers are twisted with a certain degree, and the fibers are clasped by the friction force between the fibers, so that the loose fibers are changed into single yarns, the strength and the friction resistance of the filament are improved, the fuzzing and the breakage are reduced, and the fastness of the silk fabric is improved.

If tension is not applied, twisting of the fibers may be converted into bending, and the fiber strands may be twisted into a small braid shape, so that tension is a necessary condition for twisting. According to the design, the disc spring is arranged between the swing arm and the upper cover, and the friction force of the disc spring is utilized to enable the yarn to obtain enough tension, so that the fiber strips are prevented from being twisted together.

The pulley is used for changing the direction of the carbon fiber bundle which is vertically upward and moving to the horizontal front so as to be beneficial to entering the oxidation equipment, the pulley is made of zirconia, the surface is smooth and hard, the abrasion to the yarn can not be generated, and the service life of the pulley is long.

The upper part filament plate and the front part filament plate are used for arranging the twisted tows orderly according to requirements and preventing the twisted tows from being twisted together. The magnetic rings used in the upper part wire plate and the front part wire plate are made of zirconia, and the center hole of the swing arm 3 is also made of zirconia, so that the abrasion to the wire bundle is reduced.

Claims (5)

1. The utility model provides a carbon fiber precursor twisting device which characterized by: comprises a pulley (1), an upper part filament plate (11), a twisting machine frame (12), a front part filament plate (13), a twisting machine (14) and an electric control part, wherein the twisting machine (14) comprises a swing arm (3), a butterfly nut (4), an upper cover (5), a central upright post (7), a rotating chassis (8), a fixed chassis (9) and a speed reducer motor assembly (10), the twisting machine (14) is fixed on the twisting machine frame (12), the pulley (1) is connected below the upper part filament plate (11) and the front part filament plate (13), the front part filament plate (13) is arranged behind the upper part filament plate (11), the fixed chassis (9) is arranged on the twisting machine frame (12), the motor assembly (10) is fixed on the fixed chassis (9), the speed reducer motor assembly (10) is connected with the rotating chassis (8) to rotate, the central upright post (7) is fixed on the rotating chassis (8), the protofilament yarn cylinder (6) is vertically arranged on a rotary chassis (8), the central upright post (7) penetrates out of the protofilament yarn cylinder (6), the upper cover (5) is sleeved on the upper portion of the central upright post (7), a step boss (15) is arranged in the middle of the upper portion of the upper cover (5), a hole which is communicated up and down is formed in the step boss (15), a disc spring (16) is sleeved at the large-diameter position below the step boss (15), a bearing (17) is sleeved on the outer wall of the small diameter position above the step, a swing arm (3) is fixed on a swing arm mounting seat (18), a downward circular groove is formed in the swing arm mounting seat (18), the disc spring (16), the bearing (17) and the step boss (15) are accommodated in the circular groove, the top of the circular groove is provided with a hole, the central upright post (7) penetrates out of the step boss (15), a butterfly nut (4) is arranged at the exposed part, the upper cover (5) is fastened with the protofilament yarn cylinder (, the electric control part comprises a control switch and a frequency conversion device, the rotating speed of a motor assembly (10) of the speed reducer is controlled, a raw silk barrel (6) rotates around the center line of the raw silk barrel, a certain twist is added to a silk bundle which is released at a certain speed through a center hole of the swing arm (3), and the silk bundle is conveyed to the upper silk plate (11) and the front silk plate (13) through the pulley changing the running direction.

2. The carbon fiber precursor twisting apparatus according to claim 1, wherein: the disc spring (16) is below the bearing (17).

3. The carbon fiber precursor twisting apparatus according to claim 1, wherein: the bottom of the upper cover (5) is provided with a circular ring which is buckled with the upper edge of the raw silk tube (6).

4. The carbon fiber precursor twisting apparatus according to claim 1, wherein: the center hole of the swing arm (3) is made of zirconia, and the pulley is made of zirconia.

5. The carbon fiber precursor twisting apparatus according to claim 1, wherein: the speed reducer motor assembly (10) is fixed on the fixed chassis (9) by using bolts.

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