KR880000787B1 - Selvage build-up apparatus of leno weave in a shnttleless loom - Google Patents

Abstract

In the apparatus, a needle with an eye for selvage thread is set to be movable up and down through means of links driven by an eccentric bushing on the rotor shaft, and a pair of yarn fingers with eyes for selvage threads are arranged to move side ways by the drive of a slanted rotary bushing, the pair of yarn fingers and the needle operating in synchronism through the links to the drive source.

Description

Blade tissue forming device in drumless looms

BRIEF DESCRIPTION OF THE DRAWINGS The principal part front view which shows one example of the apparatus which implements this invention.

2 is a cross-sectional view along the line X-X 'in FIG.

3 is a cross-sectional view taken along line Y-Y'-Y 'in FIG. 1;

4 and 5 are partially enlarged views in FIG. 2.

6 and 7 are cross-sectional views showing one example of an inclined rotating bushing.

8 to 11 are main parts perspective views illustrating the operating state of the apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

8: eccentric bushing 15: needle

15a: guide hole 19: inclined rotary bushing

20: front finger 20a: guide hole

21: back finger S1: background metamorphosis

21a: guide hole S2, S3: wing tip

The present invention relates to a blade tissue knitting device in a loom without a drum, and more specifically, the blade tissue is inserted into a needle and blade variation (溺 邊 ○) to insert a ground deformation (地 邊 ○) during weaving. Weaving the sides of the blade tissue by converting the rotary motion into a reciprocating motion by eccentric bushings and inclined rotary bushings without using a cam as a driving source for the up-and-down and left-right relative movement of the yawn finger. It relates to a wing control forming device.

Conventionally, this type of edge forming apparatus obtains the vertical and vertical movements of the needle into which the background edge is inserted and the vertical and horizontal movements of the yaw finger into which the blade edge is fitted from the movement of the heald. 39-16694), or the driving source of the needle and the jaw-finger by means of an independent cam without obtaining from the heald frame (see Japanese Patent Application No. 50-39181).

However, in the former, since the driving source is obtained from the heald, it is not possible to arbitrarily select the timing of the lung opening and to make a difference in the timing of the lung opening of the left and right wing tissue deformers. There was a flaw that caused damage to the thread by contact with the wing.

Therefore, in order to solve this drawback, the latter is obtained from a separate cam without the drive source from the heald, but there is an advantage that the weft thread can be completely inserted and then close the drone, but it takes a lot of labor to manufacture the cam. Since the spring is used as the left and right motion source of the yarn-inserted Yaan finger, if the weaving machine rotation speed was about 250rpm, it was not a problem. There was a flaw that the newly developed pterygium did not weave correctly.

Therefore, the present invention is to solve the above-described drawbacks, the object is that even if the weaving machine rotation speed is increased to 350rpm or more speed up and down the left and right relative movement movement of the needle and the eye fingers weaving beautiful pimple tissue deformation It is to provide a deformable device that can be.

The present invention has the following means to achieve the above object.

That is, as a driving source for moving a pair of yaw fingers into which the blade tip is inserted in the left and right direction, the axis of rotation as a driving source for moving the inclined rotary flotation having an outwardly inclined diameter with respect to the axis of rotation and the pair of yawing fingers simultaneously up and down. The eccentric bushing which is eccentric with respect to the lateral bush is installed, and the needle into which the background metabolism is inserted is configured to be moved up and down to the opposite position by synchronizing with the pair of the left eye fingers described above by the bushing described above.

One example of the following apparatus for implementing the present invention will be described in detail with reference to the drawings (1), which is a rotating shaft rotating in synchronization with the main body of the loom, and a timing pulley 2 is fixed to the rotating shaft. Denoted at 3 is a timing belt spanning the above-described timing pulley 2, and 4 is a rotation shaft in which an intermediate portion is freely attached to the support frame 5, and at one end of the rotation shaft, the timing belt 3 is described. A timing pulley 6 extending therebetween is attached. At the other end thereof, the timing pulley 7 is fixed, and the eccentric bushing 8 is fixed adjacent to the pulley 7.

The above-described eccentric bushing 8 is attached eccentrically with respect to the axial center of the above-described rotary shaft 4, so that the needle 15 (to be described later) for inserting the background strain and the front finger for sandwiching the blade strain ( 20) and a driving source for imparting upward and downward motion to the back finger 21 (which will be described later), and on the outer diameter of the eccentric bushing of the link lever 9 It is loosely attached so that one end can rotate.

10 is an L-shaped lever fixed to the shaft 11 freely attached to the support frame 5 as described above. A pin 12 is fixed to the front end of the short side of the lever. One end of the link lever 9 described above is attached to the pin 12 so as to rotate, and a thread guide rod 13 is attached to the long end of the lever. The needle 15 is fixed to the bottom of 13 by a bolt 14.

The guide hole 15a for fitting the background deformation is drilled at the front end of the needle 15 described above.

Reference numeral 16 denotes a rotating shaft attached to the support frame 5 so as to rotate, and a timing pulley 17 and an inclined rotating bushing 19 are fixed to the rotating shaft. See also)

자 형상의 부분 사이에 설치되어 있어서 전술한 회전축(4)에 고정된 타이밍 풀리(7)와 짝을 이루는 것이며 그 변속 비율은 2 : 1:의 비율로 구성되어있다.The aforementioned timing pulley 17 is approximately one of the aforementioned support frames 5.

It is provided between the magnetic parts and is paired with the timing pulley 7 fixed to the rotating shaft 4 mentioned above, and the speed change ratio is comprised by 2: 1 ratio.

Reference numeral 18 denotes a timing belt that is hung between the above-described timing pulley 7 and the above-described timing pulley 17.

As shown in FIG. 6, the above-described inclined rotation bushing 19 is formed such that the central axis P P 'of the outer diameter thereof is not concentric but slightly inclined with respect to the axis center 0 0' of the rotation shaft 16. As shown in FIG. Therefore, the inclined rotary bushing has an outer diameter that is inclined with respect to its axis of rotation, and as shown in FIG. 7, the inclined rotary bushing is symmetrically assembled so as to have an outer diameter inclined in two opposite directions. The front finger 20 and the back finger 21 are loosely attached to the outer diameter portion of the front blade 20 and the back finger 21 to rotate freely, so that the rotational movement of the inclined rotary bushing 19 is the front of the blade tip. To the relative movement of the fingers 20 and the back fingers 21 in the horizontal direction (see FIGS. 4 and 5).

As for the front finger 20 and the back finger 21 mentioned above, the front-end part is bent in L shape, and the guide hole 20a, 21a which fits a blade tip is drilled in this front-end part, respectively.

On the other hand, the rear end portion thereof is loosely attached so as to rotate on the outer diameter portion of the inclined rotary bushing 19, as described above, while the middle portion of the bushings 26, 26 'is formed on the outer side thereof. It is attached and loosely attached so that two fingers 20 and 21 can slide on the pin 22 with the link 25 interposed therebetween.

Reference numeral 23 is a lever fixed to the aforementioned shaft 11, and a pin 24 is fixed to the front end of the lever.

Numeral 25 is a link, which is loosely attached to one end thereof so as to be free to rotate to the pin 24 described above, while the other end is fixedly attached to the pin 22.

Further, reference numeral 27 is a thread guide, and the guide is fixed to the support frame 5 described above, and the support frame 5 is fixed to the machine frame 28 by bolts 29.

One example of the apparatus for implementing the present invention is configured as described above, and the operation thereof will be described next.

First, the up and down movement of the needle 15 with the background shift inserted will be described. When the rotating shaft 1 is driven through a transmission means that is directly cut from the loom body, the timing pulley 2 and the timing belt 3 are driven through the timing pulley. (6) is driven.

When the timing pulley 6 is driven, the shaft 4 is driven, thereby rotating the eccentric bushing 8 fixed to the shaft 4.

Since the eccentric bushing 8 has an outer diameter eccentric with respect to the center of the shaft 4, the link lever 9 is given a reciprocating motion in the left and right directions in FIG.

Therefore, the L-shaped lever 10 attached to the support frame 5 so as to be freely rotated and having the shaft 11 as its support point rotates alternately in the opposite direction to the normal direction by the reciprocating motion of the link lever 9. Do it.

As a result, the needle 15 attached to the front end of the L-shaped lever is given a vertical motion as indicated by the arrow.

Subsequently, when explaining the action of the front finger 20 and the back finger 21 which are fitted with the wing tip, the weak finger moves up and down to the opposite position in synchronism with the up and down movement of the needle 15 and at the same time relatively in the left and right direction. In the case of moving, the first and the downward motions will be described first, and the reciprocating motion of the link lever 9 in the left and right directions alternates in the forward and reverse directions in which the axis 11 of the L-shaped lever 10 is supported. When converted to the rotational motion, the lever 23 fixed to the shaft 11 has the shaft 23 attached to the support frame 5 as a supporting point, and the lever 23, the pin 24, and the link. Via (25), the finger 20, 21 is given the up-down direction as shown by the arrow.

At this time, the up and down movement of the needle 15 and the up and down movement of the fingers 20 and 21 become vertical movements in opposite directions.

That is, when the front end of the L-shaped lever 10 rotates clockwise (downward direction) with the shaft 11 as a supporting point, the lever 23 rotates clockwise with the shaft 11 as a supporting point, The fingers 20 and 21 are lifted with the shaft 16 as a support point to perform counterclockwise movement.

Next, when the relative movement of the finger in the right and left directions will be described, the shaft 4 is driven through the timing pulley 2, the timing belt 3, and the timing pulley 6 when the rotation shaft 1 is driven.

Since the timing pulley 7 is fixed to the biaxial 4, the timing pulley 17 is driven through the timing belt 18 hanging on the timing pulley 7.

Since the rotation shaft 16 is fixed to this timing pulley 17, the shaft 16 rotates, and the inclination rotation bushing 19 attached to the biaxial | shaft 16 rotates by this.

When the inclined rotary bushing 19 rotates, the front finger 20 and the blade tip guide holes 20a and 21a at the front end of the back finger 21 are loosely attached to the outer diameter of the shaft. As shown by arrows in FIG. 5, the movement is relatively performed in the left and right directions.

That is, when the upper sides of the rear end portions 20b and 21b of both fingers 20 and 21 approach by the rotation of the inclined rotation bushing 19, the front ends of the fingers are crossed as shown in FIG. On the other hand, when the upper side surfaces of the rear end portions 20b and 21b of both fingers 20 and 21 are separated by the rotation of the inclined rotation bushing 19, both fingers (as shown in FIG. 20) (21) also moves to separate the opposite end.

Subsequently, with reference to FIGS. 8 to 11, the edges of the blade tissues will be described in detail. FIG. 8 is when the needle 15 is about to move from the lower dead center of the descending process to the ascending process. a front finger 20 and a back finger (21) is opposed to as shown for when to transition to the falling process from the top dead center (上死點) of the rising process jeokjeon, in which with respect to the background byeonsa (S ₁₎ Extended byeonsa (S openings in ₂₎ (S _3), and then wiip is performed here.

In this state, it shifts to ninth degree.

9 shows when the needle 15 is at the top dead center while the front finger 20 and the back finger 21 are at the bottom dead center, wherein the front finger 20 moves to the right and the back finger 21 is moved. Moves to the left.

This causes the sublime (S ₂ ) (S ₃ ) to cross below the baseline (S ₁ ).

That is, the front finger 20 is at the right end and the back finger 21 is at the left end.

Then, the needle 15 enters the descending process again, and the front finger 20 and the back finger 21 enter the ascending process and are shifted to the state of FIG. 10.

10 shows that the needle 15 is at the bottom dead center while the front finger 20 and the back finger 21 are at the top dead center and in this state a new weft thread is fitted.

The needle 1 is then moved to the ascending process, while the front finger 20 and the back finger 21 are lowered to enter the state of FIG. In FIG. 11, the front finger 20 moves to the left direction and the back finger 21 moves to the right direction, so that the wing edges S ₂ and S ₃ are below the base yarn S ₁ . To cross.

Repeated action as described above will form the sides of the wing tissue. The present invention has an inclined rotary bushing for relatively moving the pair of yaw fingers with the blades inserted in the left and right directions as described above, and a pin core bushing for simultaneously moving the pair of the yawn fingers up and down at the same time. The needle is moved up and down to the opposite position in synchronism with the pair of yaw fingers described above by the eccentric bushing, which makes it possible to omit the production of a cam that requires much labor compared to the conventional apparatus and at the same time the rotation speed of the loom is 350 rpm or more. It is possible to smoothly convert the rotational movement into the reciprocating movement of the needle and the YAN FINGER even when the speed is increased, and there is no noise, and the beautiful blade structure is woven very accurately, and the relationship between the finger and the needle is changed when the fabric width is changed. Since it can be left as it is, it can be adjusted very easily. It represents.

Claims (1)

An apparatus for forming a drumless loom for weaving the pterygium by dividing at least three strands into one strand and a two strands of pterygium, and alternating the paths of the two strands of the quadrant. A needle having a guide hole into which a toilet is fitted is moved upward and downward through an appropriate link mechanism using an eccentric bushing attached to an eccentricity as a driving source with respect to an axial center of a rotating shaft driven from a main body of a loom by a suitable transmission means. And a pair of Yaan Fingers with guide holes for interfitting bladeheads so that they can be moved relative to the left and right in a left and right direction using an inclined rotary bushing having an outside diameter inclined with respect to the axis of rotation. The pair of Yaan fingers are connected to the link mechanism with the above-mentioned needle, Extended service organization forming apparatus according to gihayeo no north, characterized in that is configured to move up and down in opposite loom.

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