KR101529056B1 - Method and apparatus for punching a preform using needles - Google Patents

Method and apparatus for punching a preform using needles Download PDF

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Publication number
KR101529056B1
KR101529056B1 KR1020140022851A KR20140022851A KR101529056B1 KR 101529056 B1 KR101529056 B1 KR 101529056B1 KR 1020140022851 A KR1020140022851 A KR 1020140022851A KR 20140022851 A KR20140022851 A KR 20140022851A KR 101529056 B1 KR101529056 B1 KR 101529056B1
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KR
South Korea
Prior art keywords
needle punching
unit
sheet
preform
conveyor
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Application number
KR1020140022851A
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Korean (ko)
Inventor
조민철
조채욱
정갑수
유기범
Original Assignee
(주) 데크카본
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Publication of KR101529056B1 publication Critical patent/KR101529056B1/en

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a preform needle punching method and apparatus, A conveyor assembly provided on the base frame for conveying the sheet stacked with the sheets forming the preforms; A vertical drive unit provided in the base frame for generating a vertical drive force; A needle punching member connected to the up-and-down driving unit and performing needle punching of the sheet stacked body conveyed along the conveyor assembly while receiving the up-down driving force of the up-down driving unit and moving up and down; And a reverse unit for inverting the sheet stack conveyed along the conveyor assembly. According to the present invention, not only the binding force of the preform in the sheet stacking direction is increased but also the density of the preform is made uniform.

Description

≪ Desc / Clms Page number 1 > METHOD AND APPARATUS FOR PUNCHING A PREFORM USING NEEDLES &

The present invention relates to a preform needle punching method and apparatus.

Carbon-carbon composites are used as brake discs for aircraft and automobiles because of their excellent friction and abrasion characteristics and thermal shock resistance.

The carbon composite material can be roughly classified into a process of producing a preform using carbon fibers and a process of making a preform densified.

Generally, the preforms are made by laminating carbon fiber webs in sheet form or carbon fiber webs in sheet form to a predetermined thickness, and then needle punching the laminated sheets in a laminated direction. The sheet-like carbon fiber fabric may be a shape in which the carbon fibers are formed in one direction, and the carbon fibers may be in a shape in which the carbon fibers are interwoven with each other. The sheet-like carbon fiber web is made of non-woven fabric of carbon fibers having a length of about 7 to 8 cm. The laminated sheets may be laminated with a plurality of sheet-like carbon fiber fabrics or may be laminated together with sheet-shaped carbon fiber webs and sheet-shaped carbon fiber webs.

In the needle punching process, the needle punch is reciprocated in the vertical direction (lamination direction) of the sheet stacked sheets, and the needles provided in the needle punches are arranged in the laminated direction (thickness direction of the sheet) do. Since the fibers located on the sheet are arranged in the stacking direction, the sheet and the sheet are entangled with each other to bind in the stacking direction, thereby increasing the binding force in the stacking direction of the stacked sheets.

Korean Patent Publication No. 2004-0060017 (published on June 7, 2004) (hereinafter referred to as prior art) discloses a preform manufacturing method using needle punching. Prior art discloses a technique of punching a preform while moving a needle punch having a guide flat plate in a vertical direction.

However, since the needle punching process as described above can increase the binding force of the preform in the stacking direction, since the carbon fibers located on the upper side of the preform are arranged downward, the density of the lower portion of the preform is high, The density of the entire preform is not uniform. On the other hand, when the density of the needle punching is decreased to reduce the density difference of the preforms, the binding force between the sheets of the preforms becomes low.

Also, during the process of densifying the preform, the high temperature carbonization (heat treatment) process is performed, in which the weight and volume are reduced. Particularly, there is a disadvantage in that the weight and volume of the low-density portion of the preform are largely reduced and the dimensions and shape of the product are unbalanced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a preform needle punching method and apparatus which not only increases the binding force of a preform in a sheet stacking direction but also makes the density of a preform uniform.

In order to achieve the above-mentioned object of the present invention, A conveyor assembly provided on the base frame for conveying the sheet stacked with the sheets forming the preforms; A vertical drive unit provided in the base frame for generating a vertical drive force; A needle punching member connected to the up-and-down driving unit and performing needle punching of the sheet stacked body conveyed along the conveyor assembly while receiving the up-down driving force of the up-down driving unit and moving up and down; And a reverse unit for reversing the sheet stack conveyed along the conveyor assembly.

The base frame may include two vertical portions spaced apart from each other, a horizontal portion connecting upper portions of the two vertical portions, and a mounting portion connecting the lower portions of the vertical portions to each other and mounting the conveyor assembly desirable.

The conveyor assembly includes a conveyor frame, two rollers rotatably coupled to the conveyor frame at a distance from each other, a conveyor belt connected to the two rollers and moving according to rotation of the rollers, And a roller drive unit.

Preferably, the conveyor belt includes a base belt for wrapping two rollers to contact the two rollers, and a support belt provided on the base belt, wherein the support belt is made of an elastic member.

The up-and-down driving unit includes a rotating motor provided in the base frame, a ball screw assembly connected to the motor shaft of the rotating motor and the needle punching member and moving the needle punching member up and down according to normal and reverse rotation of the rotating motor .

The up-and-down driving unit includes a rotating motor provided in the base frame, a pinion coupled to a motor shaft of the rotating motor, a pinion vertically coupled to the needle punching member and engaged with the pinion, And a rack member for moving the rack member.

The needle punching member is moved up and down along a guide unit. The guide unit includes guide rods provided on both sides of the base frame, and guide pegs provided on both sides of the needle punching member, It is preferable to include sliding blocks to be combined.

The reverse unit includes a base plate positioned next to the conveyor assembly, a plate drive unit moving the base plate up and down, a sliding member movably coupled to the base plate in a horizontal direction, A linear driving unit provided in the rotating unit and generating a linear driving force; and a linear driving unit which is linearly reciprocating in accordance with the operation of the linear driving unit, It is preferable to include forks for picking and placing.

Further, in order to accomplish the object of the present invention, there is provided a sheet punching method including: a forward punching step of needle punching a top surface of a sheet stack in a downward direction; Reversing the sheet stacked body; And a reverse punching step of needle punching the lower surface of the sheet stack body in the upper surface direction.

Wherein the forward punching step includes the steps of dividing the upper surface of the sheet stack into a plurality of continuous areas and sequentially needle-punching the divided areas, and the backward punching step includes dividing the lower surface of the sheet stack into a plurality of continuous areas The divided regions are sequentially needle-punched, and the sizes of the upper and lower partition regions of the sheet stack are equal to each other and overlap each other by half.

In the present invention, a sheet laminate in which carbon fiber-based sheets are laminated is needle-punched in a direction from the upper surface (one surface) to the lower surface (the other surface), and the ear-sheet laminate is turned upside- (One side), the fiber density is not concentrated on one side of the sheet stack body, the fiber density becomes uniform over the entire sheet stack body, and the binding force in the stacking direction of the sheet stack body becomes large.

Further, in the present invention, when the area of the needles of the needle punching member is smaller than the area of the sheet stack, the upper and lower surfaces of the sheet stack may be divided into a plurality of areas Regions), and when the needle punching is performed in the downward direction from the upper surface, the divided regions of the upper surface are successively punched and the divided regions of the lower surface when the needle punching is performed in the upper surface direction are sequentially punched, Direction fibers are distributed at regular intervals, so that the fiber density in the stacking direction of the sheet stacked body becomes uniform.

1 is a side view showing an embodiment of a preform needle punching apparatus according to the present invention,
2 is a front view showing an embodiment of a preform needle punching apparatus according to the present invention,
3 is a side view showing a conveyor belt constituting an embodiment of a preform needle punching apparatus according to the present invention,
4 is a side view showing another embodiment of the upper and lower drive units constituting an embodiment of the preform needle punching apparatus according to the present invention,
Fig. 5 is a front view showing a reverse unit constituting an embodiment of the preform needle punching apparatus according to the present invention, Fig.
6 is a flow chart showing an embodiment of a preform needle punching method according to the present invention,
7 is a front view illustrating needle punching according to one embodiment of a preform needle punching method according to the present invention;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a preform needle punching method and apparatus according to the present invention will be described with reference to the accompanying drawings.

1 is a side view showing an embodiment of a preform needle punching apparatus according to the present invention. 2 is a front view showing an embodiment of a preform needle punching apparatus according to the present invention.

1 and 2, an embodiment of a preform needle punching apparatus according to the present invention includes a base frame 100, a conveyor assembly 200, a vertical drive unit 300, a needle punching member 400, Unit 500 as shown in FIG.

The base frame 100 includes two vertical portions 110 spaced apart from each other, a horizontal portion 120 connecting the upper portions of the two vertical portions 110, And a mounting portion 130 to which the conveyor assembly 200 is mounted.

The conveyor assembly 200 is provided in the mounting portion 130 of the base frame 100. The conveyor assembly 200 transports the sheet stack in which the sheets forming the preform are stacked. In an embodiment of the conveyor assembly 200, the conveyor assembly 200 includes a conveyor frame 210 provided at the mounting portion 130 of the base frame, A conveyor belt 230 connected to the two rollers 220 to move according to the rotation of the rollers 220 and a roller drive unit 240 for rotating the rollers 220 do. The conveyor frame 210 has a predetermined length and is provided with supporting portions 211 each having a length set on both sides thereof. The two rollers 220 are rotatably coupled to the support portion 211 at a distance from each other in the longitudinal direction of the conveyor frame 210. It is preferable that a plurality of auxiliary rollers (not shown) are provided between the two rollers 220. 3, the conveyor belt 230 includes a base belt 231 for wrapping two rollers 220 to be in contact with two rollers 220, a support belt 231 for supporting the base belt 231, (232). The support belt 232 is preferably made of an elastic material. The roller driving unit 240 is mounted on one side of the conveyor frame 210 to rotate the roller 220.

The conveyor assembly 200 may be installed separately from the base frame 100.

The up-and-down driving unit 300 is provided in the base frame 100, and generates a vertical driving force. The upper and lower drive unit 300 includes a rotation motor 310 provided to the base frame 100 and a motor shaft of the rotation motor 310 and a needle punching member 400 And a ball screw assembly 320 for moving the needle punching member 400 up and down in accordance with rotation of the rotary motor 310 in the forward and reverse directions. It is preferable that the rotation motor 310 is provided on the horizontal portion 120 of the base frame 100 so that the motor shaft of the rotation motor 310 is positioned in the vertical direction. The screw end of the ball screw assembly 320 is rotatably coupled to the upper surface of the needle punching member 400. The motor shaft of the rotary motor 310 or the screw of the ball screw assembly 320 penetrates the horizontal portion 120 of the base frame 100. When the rotary motor 310 is rotated in the forward direction, the ball screw assembly 320 is rotated forward to move the needle punching member 400 downward. When the rotary motor 310 rotates in the reverse direction, the ball screw assembly 320 rotates reversely The needle punching member 400 is moved upward.

4, the up-and-down drive unit 300 includes a rotation motor 330 provided on the base frame 100, a motor (not shown) of the rotation motor 330, And a rack member 350 vertically coupled to the needle punching member 400 and engaged with the pinion 340 and moving up and down in accordance with the forward and reverse rotation of the pinion 340. The rotation motor 330 is preferably provided on the horizontal portion 120 of the base frame 100 so that the motor shaft is positioned in the horizontal direction. The rack member 350 passes through the horizontal portion 120 of the base frame 100. The pinion 340 rotates in a forward direction and the rack member 350 engaged with the pinion 340 moves downward and the rack member 350 moves downward to rotate the needle punching member 400 The pinion 340 rotates in the reverse direction and the rack member 350 engaged with the pinion 340 is moved upward and the rack member 350 is moved upward, The member 400 is moved upward.

The needle punching member 400 is connected to the up-and-down driving unit 300 and receives the up-and-down driving force of the up-and-down driving unit 300 to vertically move and needle punches the sheet stacked body conveyed along the conveyor assembly 200. The needle punching member 400 preferably includes a needle base 410 and a plurality of needles 420 provided on the lower surface of the needle base 410 and a bracket portion 430 provided on the upper surface of the needle base Do. The needle base 410 is preferably formed in a rectangular plate shape. The needles 420 are preferably provided with grooves or barbs that push the fibers down when they are lowered and the needles 420 are arranged in a square shape to form a plurality of rows and a plurality of rows in the needle base 410, It is preferable that each column and each row is an even column. The bracket part 430 is formed in a diagonal shape, and the up and down driving unit 300 is connected. The bracket portion 430 of the needle punching member 4000 may be omitted in some cases.

The needle punching member 400 preferably moves up and down along the guide unit 140. The guide unit 140 includes guide rods 141 provided on vertical portions of the base frame 100 and slidably coupled to the guide rods 141 on both sides of the needle punching member 400 Sliding blocks 142. The guide rods 141 are provided on the vertical portion 110 of the base frame 100 so as to be vertically positioned. The sliding block 142 is preferably provided on a side surface of the needle base 410 of the needle punching member 400.

The reverse unit 500 reverses the sheet stack conveyed along the conveyor assembly 200. 5, the reverse unit 500 includes a base plate 510 positioned on the side of the conveyor assembly 200, and a base plate 510 that moves the base plate 510 up and down A sliding member 530 that is movably coupled to the base plate 510 in a horizontal direction and a sliding member driving unit 540 that drives the sliding member 530; A linear driving unit 560 provided in the rotating unit 550 to generate a linear driving force and a linear driving unit 560 which is provided in the linear driving unit 560 while linearly reciprocating according to the operation of the linear driving unit 560, And forks 570 for picking and laying the stack. The plate drive unit 520 includes a hydraulic cylinder. Other embodiments of plate drive unit 520 may include ball screw assemblies. The rotating unit 550 includes a disk member 551 positioned on the front surface of the sliding member 530 and a rotating motor 552 mounted on the rear surface of the sliding member 530 to rotate the disk member 551. The linear drive unit 560 includes a ball screw assembly 561 and a rotary motor 562 for rotating the ball screw assembly 561. The screw constituting the ball screw assembly 561 is composed of a forward threaded portion and a reverse threaded portion. The two forks 570 are fastened to the forward threaded portion and the reverse threaded portion of the screw, respectively. As the rotary motor 562 of the linear drive unit 560 rotates forward or reverse, the screw is rotated forward or reverse so that the two forks 570 are moved closer or further away. The fork 570 includes a connecting portion 572 connected to the screw of the ball screw assembly 561 and a plurality of foot portions 573 extending from the connecting portion 572.

The operation of the reverse unit 500 is as follows.

The sliding member 530 is moved backward to a distance from the conveyor assembly 200 by the sliding member driving unit 540 and the base plate 510 is moved by the plate driving unit 520 to adjust the height of the fork 570 do. When the height of the fork 570 is at a set height, the sliding member 530 is moved to the conveyor assembly 200 by the sliding member driving unit 540 to position the sheet stack body on the fork 570 located below. Then, by moving the base plate 510 upward by the plate driving unit 520 in a state where the two forks are narrowed by the linear driving unit 560 and the sheet stacked body is held and fixed by the two forks 570, And then rotates the rotating unit 550 to turn over the sheet stacked body. The distance between the forks 570 is increased by the linear drive unit 560 and then the base plate 510 is moved downward by the plate drive unit 520 to place the sheet stack on the conveyor belt 230. And moves the forks 570 backward by moving the sliding member 530 backward to the sliding driving unit 540. [

6 is a flowchart showing an embodiment of a preform needle punching method according to the present invention. 7 is a front view showing needle punching according to an embodiment of the preform needle punching method according to the present invention.

6 and 7, an embodiment of the preform needle punching method according to the present invention is characterized in that first, a forward punching step of needle punching from the upper surface (A) to the lower surface (B) of the sheet stacked body (S1) proceeds. When the area of the needles 420 of the needle punching member 400 is larger than the area of the sheet stack P, one punching can be performed on the sheet stack P by the needle punching member 400, Punching can be performed a plurality of times while moving the position of the sheet stacked body P. [ When the area of the needles 420 of the needle punching member 400 is smaller than the area of the sheet stack P, the upper surface A of the sheet stack P is divided into a plurality of continuous regions a The divided regions are sequentially needle-punched.

After the normal punching step S1, the reverse step S2 of reversing the sheet stack P is proceeded.

A reverse punching step S3 is carried out in which the sheet stacked body P is turned upside down and needle punching is performed in the direction of the top surface A from the bottom surface B of the sheet stacked body P. [ One side of the sheet stacked body P is referred to as an upper side A and the opposite side thereof is referred to as a lower side B in the forward punching step S1, And in the reverse punching step S3, the sheet stacked body P is needle punched in the direction from the lower surface B to the upper surface A of the sheet stacked body P with the sheet stacked body P turned upside down. When the area of the needles 420 of the needle punching member 400 is larger than the area of the sheet stack P, one punching can be performed on the sheet stack P by the needle punching member 400, Punching can be performed a plurality of times while moving the position of the sheet stacked body P. [ When the area of the needles 420 of the needle punching member 400 is smaller than the area of the sheet stack P as shown in Fig. 7, the lower surface B of the sheet stack P is continuous The upper and lower rim regions b and b of the sheet laminate P are sequentially needle-punched so as to have the sizes of the upper and lower rim compartments a and b, 2. It is preferable that the partition areas (a) and (b) are equal to the areas distributed by the needles 420 of the needle punching member 400.

Hereinafter, the operation and effect of the preform needle punching method and apparatus according to the present invention will be described.

The sheet stack P is placed on the conveyor belt 230 of the conveyor assembly 200 and the conveyor belt 230 is moved by rotating the roller 220 by operating the roller drive unit 240, The body P is moved to a working position below the needle punching member 400. [ The needle punching member 400 is moved up and down by the operation of the up-and-down driving unit 300 to perform needle punching in the downward direction from the upper surface of the sheet stacked body P. [ After the needle punching is performed a predetermined number of times, the conveyor assembly 200 is operated to move the sheet stack P to the front of the reverse unit 500. The reversing unit 500 turns the sheet stack P upside down and then operates the conveyor assembly 200 to move the inverted sheet stack P to the working position below the needle punching member 400. [ The needle punching member 400 is moved up and down by the operation of the up-and-down driving unit 300 to perform needle punching in the direction of the top surface from the lower surface of the sheet stacked body P. After the needle punching is performed a predetermined number of times, the conveyor assembly 200 is operated to move the sheet stack P to the discharge position.

When the area where the needles 420 of the needle punching member 400 are distributed when the needle punching member 400 is needle punched in both directions of the sheet stacked body P is larger than the area of the sheet stacked body P, The sheet stacked body P can be punched once by the member 400 and the position of the sheet stacked body P is moved by moving the conveyor assembly 200 to be moved to the needle punching member 400 A plurality of punching operations can be performed.

On the other hand, when the area of the needle punching member 400 in which the needles 420 are distributed is smaller than the area of the sheet stack P, the needle punching member 400 is punched in the downward direction from the top surface of the sheet stack P The upper surface of the sheet stacked body P is divided into a plurality of continuous regions, and the divided regions are sequentially needle-punched. When the needle punching member 400 is punched in the direction of the upper surface at the lower surface of the sheet stacked body P by inversion of the sheet stacked body P, the lower surface of the sheet stacked body P is divided into a plurality of continuous regions And the needle punching is performed by dividing the upper and lower compartment areas of the sheet stack P so as to have the same size and overlap each other by 1/2.

As described above, according to the present invention, the sheet stacked body P in which the carbon fiber-based sheets are laminated is needle-punched in the direction from the upper surface (one surface) to the lower surface (the other surface) The needle punching is performed in the direction of the upper surface (one surface) from the lower surface (the other surface) of the sheet stacked body P so that the fiber density is not concentrated on one side of the sheet stacked body P, Not only the fiber density becomes uniform, but also the binding force in the stacking direction of the sheet stacked body P becomes large.

When the area of the needles of the needle punching member 400 is smaller than the area of the sheet stack P, the present invention may be applied to a case where the upper and lower surfaces of the sheet stack P are overlapped with each other by a half (Areas corresponding to the areas where the needles are distributed), and when the needle punching is performed from the upper surface to the lower surface, the divided areas of the upper surface are sequentially punched and the divided areas of the lower surface when the needle punching is performed in the upper surface direction are sequentially The fibers in the stacking direction of the sheet stacked body P are distributed at regular intervals and the fiber density in the stacking direction of the sheet stacked body P becomes uniform.

100; A base frame 200; Conveyor assembly
300; A vertical drive unit 400; Needle punching member
500; Reverse unit

Claims (10)

A base frame;
A conveyor assembly provided on the base frame for conveying the sheet stacked with the sheets forming the preforms;
A vertical drive unit provided in the base frame for generating a vertical drive force;
A needle punching member connected to the up-and-down driving unit and performing needle punching of the sheet stacked body conveyed along the conveyor assembly while receiving the up-down driving force of the up-down driving unit and moving up and down; And
And a reverse unit for reversing the sheet stack conveyed along the conveyor assembly. The apparatus of claim 1, wherein the base frame includes two vertical parts spaced from each other, a horizontal part connecting upper parts of the two vertical parts, and a lower part connecting the lower parts of the vertical parts, And a mounting portion for mounting the preform. The conveyor according to claim 1, wherein the conveyor assembly comprises: a conveyor frame; two rollers rotatably coupled to the conveyor frame at a distance from each other; a conveyor belt connected to the two rollers, And a roller drive unit for rotating the rollers. The support belt according to claim 3, wherein the conveyor belt includes a base belt for wrapping two rollers so as to contact the two rollers, and a support belt provided on the base belt, wherein the support belt is made of an elastic member Lt; / RTI > needle punching device. The motorcycle according to claim 1, wherein the up-and-down drive unit is connected to a motor shaft of the rotary motor and the needle punching member, and rotates the needle punching member vertically A preform needle punching device comprising a moving ball screw assembly. The motorcycle according to claim 1, wherein the up-and-down driving unit comprises: a rotary motor provided in the base frame; a pinion coupled to a motor shaft of the rotary motor; a pinion vertically coupled to the needle punching member, And a rack member moving up and down in accordance with normal and reverse rotation of the rack member. The needle punching device according to claim 1, wherein the needle punching member moves up and down along a guide unit, the guide unit includes guide rods provided on both sides of the base frame, Wherein the sliding blocks are slidably coupled to the rods. 2. The apparatus of claim 1, wherein the reverse unit comprises: a base plate positioned next to the conveyor assembly; a plate drive unit moving the base plate up and down; a sliding member movably coupled to the base plate in a horizontal direction; A linear driving unit that is provided in the rotary unit and generates a linear driving force; and a control unit that controls the linear driving unit in accordance with the operation of the linear driving unit, And forks that pick and place the sheet stack while reciprocating. A forward punching step of needle punching the upper surface of the sheet stack body in the downward direction;
Reversing the sheet stacked body;
And a reverse punching step of needle punching the lower surface of the sheet stack body in the upper surface direction. The method as claimed in claim 9, wherein the forward punching step comprises: sequentially punching the divided areas by dividing the upper surface of the sheet stack into a plurality of continuous areas; and the backward punching step comprises: Wherein the upper and lower surface partitioning regions of the sheet stack body have the same size and are overlapped with each other by a number of needle punching regions sequentially partitioned by dividing into a plurality of regions.
KR1020140022851A 2014-02-26 2014-02-26 Method and apparatus for punching a preform using needles KR101529056B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589056A (en) * 2018-07-05 2018-09-28 天津工大航泰复合材料有限公司 A kind of servo needle thorn rifle
CN110293617A (en) * 2019-07-17 2019-10-01 武汉微动机器人科技有限公司 A kind of tablet press machine
KR20220041651A (en) * 2020-09-25 2022-04-01 (주)한국씨엠에프 Apparatus for producing plate typed preform using needle punching measurement

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Publication number Priority date Publication date Assignee Title
JPH06240555A (en) * 1993-02-15 1994-08-30 Nippon Felt Co Ltd Apparatus for producing needle felt
JP2005036385A (en) * 2003-07-15 2005-02-10 Textil Mas Fab Dr Ernst Fehrer Ag Apparatus for needling fiber web
KR101032044B1 (en) * 2009-11-03 2011-05-02 주식회사씨앤에프 Apparatus and method for minimizing carbon fiber fabric loss by adjusting array angle of carbon fiber
KR101088441B1 (en) * 2011-01-31 2011-11-30 이종학 The non-woven fabric after-treatment machine used automotive interior

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06240555A (en) * 1993-02-15 1994-08-30 Nippon Felt Co Ltd Apparatus for producing needle felt
JP2005036385A (en) * 2003-07-15 2005-02-10 Textil Mas Fab Dr Ernst Fehrer Ag Apparatus for needling fiber web
KR101032044B1 (en) * 2009-11-03 2011-05-02 주식회사씨앤에프 Apparatus and method for minimizing carbon fiber fabric loss by adjusting array angle of carbon fiber
KR101088441B1 (en) * 2011-01-31 2011-11-30 이종학 The non-woven fabric after-treatment machine used automotive interior

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589056A (en) * 2018-07-05 2018-09-28 天津工大航泰复合材料有限公司 A kind of servo needle thorn rifle
CN110293617A (en) * 2019-07-17 2019-10-01 武汉微动机器人科技有限公司 A kind of tablet press machine
CN110293617B (en) * 2019-07-17 2024-04-26 武汉微动机器人科技有限公司 Tablet press
KR20220041651A (en) * 2020-09-25 2022-04-01 (주)한국씨엠에프 Apparatus for producing plate typed preform using needle punching measurement
KR102465428B1 (en) 2020-09-25 2022-11-11 (주)한국씨엠에프 Apparatus for producing plate typed preform using needle punching measurement

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