JPH09250057A - Leno device for shuttle-free loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leno device capable of changing to any one of full leno and half leno by only changing program in opposed upper and lower motion of a core yarn and an entangling yarn. SOLUTION: Right and left positions of entangling yarns on both sides to the core yarn A1 are exchange by using opposite motion of upper and lower moving materials 1 and 1' and 2 and 2' for the first and second selvedges to upper and lower reverse directions as a driving source. The upper and lower motion is converted to rotation motion by a pair of fixed cams 5 and 5' and double-leaf vehicle and further, the rotation motion is converted to horizontal reciprocating motion to reverse direction by double-leaf vehicle and a pair of traverse transferring bodied 9. Entangling yarn guide member 10 and 10' are attached to a pair of traverse transferring bodies 9 and core yarn needles 71 , 72 ... are attached to stays 4 and 4' on the sides of fixed cams 5 and 5'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reno device for assembling ears of a shuttleless loom, and more particularly to an improvement in a reno device for joining and gripping a cut end of a weft.

[0002]

2. Description of the Related Art Shuttleless looms make a great contribution to speeding up and weaving of weaving, and have been used in most textile fields except for special textiles. Both ends or at least one end of the weft yarn is also cut one by one, and is connected to the fabric ear in some way, and the extra length of the weft is gripped in some way, and then removed from the fabric ear. If it is not, weaving cannot be continued and it cannot be a woven fabric having good appearance. As one of the methods, a leno device applying a entangled weave, which is a kind of woven structure, is installed on both sides or one side of the loom, and the weft end inserted by weft is grasped by a warp of several entangled structures, and at least 1 The weft is connected to the weave of the fabric with the entangled structure of the row, and the warp of the entangled structure of the outer row is removed from the end of the weaving, together with the weft cut by the ear cutter, while holding the weft. It

[0003] As a tangled weave applied to a reno device,
One or two core yarns are arranged one by one on the right and left, one by one, and the weft is entangled with the weft by changing the right and left positions of the entanglement for each weft, and every two wefts There is a weaving method in which the position is changed and the weft is entangled. The former is called full reno and the latter is called half reno, and it is necessary to use different reno devices according to the fabric structure and the fabric type woven by a loom.

[0004]

In any of the weaving methods, the core yarn and the entangled yarn simultaneously move in opposite directions in the up and down directions, and the entangled yarn moves synchronously with the right and left positions. However, in the same device, for example, when changing from full reno to half reno, of course, simultaneously with the change of the drive system of the opposing movement in the up and down direction, the drive system of the right and left position changing movements must also be changed. Because of this complexity, the device is not changed, and it responds by changing the yarn type of the entangled yarn / core yarn.However, for example, it is compatible with the fabric structure, but not compatible with the weft yarn type. In the end, it is causing trouble.

Accordingly, an object of the present invention is to provide a reno device which can be changed to a full reno or a half reno only by changing the movement characteristics of the opposing vertical movement of the core yarn and the entanglement yarn.

[0006]

In order to achieve the above object, the present invention relates to a core woven in the same direction as a warp with respect to a cut end of a weft on one or both sides of a fabric woven by a shuttleless loom. This is a reno device for a shuttleless loom, which is assembled by means of a yarn and entanglement yarns intersecting on both sides of the core yarn, wherein one of the sliding bodies making an opposing vertical movement has a rotation center as a symmetrical point.
Two camshafts having two convex cam portions joined by two parallel surfaces are combined and supported by shifting the phases by 90 °, and one of the sliding bodies is positioned at a position where it engages with each of the two camshafts. An intermittent rotary motion in which two straight cams having a flat surface whose height is up to the parallel plane of the impeller are fixed, and the two-wheel rotates 90 ° in a fixed direction and stops at every half cycle of the opposing vertical motion. However, it is characterized in that the position of the entanglement thread is changed to a position changing movement.

More specifically, the present invention relates to a core yarn woven in the same direction as a warp with respect to the cut end of one or both sides of a woven fabric woven by a shuttleless loom, and to both sides of the core yarn. What is claimed is: 1. A reno device for a shuttleless loom, which comprises: a first and a second vertically movable member for the ear assembly which are simultaneously operated in the vertical direction in relation to the weaving cycle of the loom; A stay attached to the first ear-assembly vertically moving member, a pair of fixed cams fixed to the stay in a vertically opposed manner, and a needle attached to the stay and inserting and supplying a core thread; A sliding body connected to the second ear-raising vertical moving member and slidably mounted vertically along the stay, and rotating about the horizontal axis on the sliding body corresponding to the pair of fixed cams; Of the up-and-down moving member for the second ear assembly A two-wheeled wheel rotated in the same direction by 90 ° by the fixed cam during the middle and in the middle of the descending stroke, respectively; and A pair of lateral moving bodies which are simultaneously moved in the opposite direction by the rotation of the impeller by 90 ° in the opposite direction and are horizontally moved by a half of the interposition distance of the tangling yarns; The entanglement thread guide member for guiding the entangled thread through the entanglement thread guide holes on both sides of the needle for inserting and supplying the thread, and the first and second ear-raising and lowering members for the weaving cycle of the loom. 1: 1
And a program for selecting one of the 1: 2 cycles and simultaneously performing one reciprocating operation in the vertical direction in the opposite direction. The program is selected to set the first and second ear assembly vertical movement members to the The two-wheeled wheel is moved up and down in any cycle, and the pair of fixed cams drives the two-wheel
By rotating the two-wheeled wheel by 0 ° at every 180 °, the twine thread guide member is caused to move alternately on both sides of the needle via the pair of laterally moving bodies.

Further, the present invention can be implemented by providing a plurality of sets of the core thread insertion / supply needles and the entanglement thread guide holes at intervals of a position changing movement distance of a pair of horizontal moving bodies.

As described above, according to the present invention, in both fullreno and half-reno, the vertical positional relationship between the core yarn and the entanglement yarn in one cycle of the opposing movement of the core yarn and the entanglement yarn in the upside-down direction. When returning to the original positional relationship, the right and left positions of the entanglement yarns on both sides with respect to the core yarn are alternated by using the opposing movements of the first and second ear assembly vertically moving members in the opposite vertical direction as a drive source. Can be.

That is, by the first ear assembly vertical moving member,
A pair of fixed cams is attached to a stay serving as a support for the needle for vertically moving the core thread therethrough, and a sliding body connected to a second ear assembly vertically moving member that moves vertically opposite to this. A two-wheel is rotatably mounted around a horizontal axis at a position corresponding to the pair of fixed cams. When a stay serving as a needle support and a sliding body move upside down in opposite directions,
The impeller is rotated 90 ° at a time by a pair of fixed cams.
The two-wheeled wheel of the sliding body rotates by 180 °.
The 180 ° rotation of the two-wheel wheel is simultaneously converted into a reciprocating horizontal reciprocation in the opposite direction by a pair of lateral moving bodies, and a guide member for a tangling thread is attached to the pair of lateral moving bodies. Thereby, the entanglement thread guide member moves up and down with respect to the stay serving as the needle support body, and at the same time, performs right and left position changing movements.

[0011] Therefore, in one cycle of the loom, the reno device is one.
If the opposing vertical movement of the cycle is performed,
If the reno device makes a one-cycle opposing up-and-down motion in two cycles of the loom, the tangled yarn guide piece will become a right and left one-half cycle. It becomes a half reno by doing the position shift movement.
That is, full reno and half reno can be changed only by selectively changing the program of the opposing movements of the first and second ear-assembly vertical movement members in the vertical direction at the same time for one cycle of the loom.

[0012]

1 and 2A and 2B show an example in which a reno device according to the present invention is mounted on a heald frame of a loom. In FIG. 1, a first selvage up / down moving member 1 and 1 ′ and a second selvage up / down moving member 2 and 2 ′ form a part of a heald frame (not shown) of the loom, and drive the shed of the loom. A device (not shown) is programmed to always move in opposite directions upside down at the same time.

The U-shaped stays 4 and 4 'having a U-shaped cross section are attached to the first vertically movable members 1 and 1' for assembling via fasteners 3 and 3 ', and a pair of stays 4 and 4' are provided inside the stays 4 and 4 '. straight stationary cam 5, 5 'is attached to the opposite shape in the vertical direction, the stay 4, 4' to fasteners 3 of the needle 7 ₁ through which a core yarn through a needle support 6, 7 ₂ ... are mounted at a pitch P.

The second vertically moving members 2, 2 'for assembling are rounded.
Connected to the sliding body 8 via ropes 11 and 11 ',
The sliding body 8 slides up and down using the stays 4 and 4 'as a guide.
The sliding body 8 has a front surface and a rear surface.
A lateral (horizontal) guide groove is formed on the surface.
A pair of lateral moving bodies 9 and 9 ′ are fitted in the guide grooves.
Entangled thread pierced at a pitch P on a pair of lateral moving bodies 9, 9 '
Guide hole 16₁, 16 _Two・ ・ 、 16₁’, 16_Two’
The thread guide members 10 and 10 ′ having
₁, 7_Two..Mounted so that they are located behind rows
You. A core pulled out from a yarn feeding device (not shown)
Thread A₁, A_Two・ ・ Need through guides 12 and 12 '
Le 7₁, 7_Two..Hole 15 from upper end to lower end₁, 15_Two・
・ The thread is passed through₁, B₁’, B_Two, B_Two’・ ・ Is
Tangle guide hole 16₁, 16₁’, 16_Two, 16_Two’
・ Wearing device of the loom with the core yarn
Omitted) to pull the loom forward.

FIGS. 3A and 3B are detailed sectional views showing the relationship between the inside of the sliding member 8 and the fixed cams 5 and 5 '. 1
Reference numerals 3 and 13 'denote two-wheeled wheels that are rotatably pivoted about a horizontal axis so as to be sandwiched between a pair of lateral moving bodies 9 and 9' in the sliding body 8. The two-wheeled wheels 13, 13 'have two convex cam portions 13a, 13a having a center of rotation as a symmetrical point.
13a ′ and 13a ′ are formed with a phase of 180 °
Of the two convex cam portions into two parallel surfaces 13b, 13b, 13
b ', 13b', and the two convex cam portions 13a, 13a, 13a ', 13a' are integrated by the through pins 14, 14 'in a state of being shifted from each other by 90 [deg.] to form a cylinder. The portion is rotatably supported by a bearing portion of the sliding body 8 about a horizontal axis. The fixed cams 5 and 5'are
At the positions where they respectively engage with the two-wheeled wheels 13, 13 ',
It is mounted inside the stays 4, 4 '. Through pin 1
4 and 14 ′ are passed at a pitch P at a position 180 ° from each other, one end of which serves as a crankpin and fits in a long hole 17, 17 ′ drilled in the lateral moving body 9, 9 ′ outside thereof. Thus, two pairs of crank / slider mechanisms which simultaneously reciprocate horizontally in opposite directions are configured.

FIG. 3 (A) is a view of FIG. 1, in which the first vertically movable members 1, 1 'for assembling are raised, and the second vertically movable members 2, 2' for assembling are lowered to entangle. Yarn guide holes 16 ₁ , 1
6 ₂ ··· 16 ₁ ', 16 ₂ ' · · · are holes 1 at the lower end of the needle
Immediately after deviating from the positions of 5 ₁ , 15 ₂ ..., The parallel surface 13 b ′ of one of the two wheel wheels 13 ′ comes off the linear portion of the fixed cam 5 ′, and its rotation is free. The moment when the convex cam portion 13a of the other two-wheel wheel 13 is engaged with the slope of the fixed cam 5 and is about to be rotated in the direction of the arrow is shown. That is, the entangled yarns B ₁ , B ₁ ′, B ₂ ,
When the height of B ₂ ′ is deviated from the lower ends of the needles 7 ₁ , 7 _2, ..., The fixed cam 5 for the stays 4, 4 ′ starts rotating the two-wheel wheels 13, 13 ′. , 5 'mounting height position is determined. After this, the other 2
The impeller 13 starts rotating by the fixed cam 5, and after rotating 90 °, its parallel surface 13b contacts the linear portion of the fixed cam 5 to stop the rotation. During this time, the through pins 14, 14 '
Due to the crank-slider movement of the horizontal moving bodies 9 and 9 ', the entanglement thread guide members 10 and 10' are each １ ／ ×
Move P right and left.

The second half cycle of the opposing vertical movement of the first and second ear assembly vertical moving members, that is, the first ear assembly vertical moving member 1, 1 'is lowered, and the second ear assembly vertical movement member is moved downward. When the moving members 2 and 2 'are lifted, the parallel surface 13b of the other two wheel 13 is disengaged from the linear portion of the fixed cam 5, and the convex cam portion 13a' of the one wheel 13 'is fixed to the fixed cam. After engaging with the slope of 5 ′ and rotating by 90 ° in the direction of the arrow, the parallel surface 13b ′ is in contact with the linear portion of the fixed cam 5 ′ and rotation is stopped. Due to the crank slider movement with the horizontal moving bodies 9 and 9 ', the entanglement guide members 10 and 10' are further moved right and left by 1 / 2.times.P, respectively.

Accordingly, when the height of the entanglement thread deviates from the lower end of the needle through which the core thread is passed in one cycle of the upward / downward opposing movement of the first and second ear assembly vertical moving members, The impellers 13 and 13 'are rotated by 180 [deg.] To move the entanglement thread guide members 10 and 10' to the right and left by the needle arrangement pitch P, respectively, so that the entanglement thread B ₁ for the core threads A ₁ , A _2. , B ₁ ′, B ₂ , B ₂ ′,... In the next one cycle of the ascending and descending opposing movements of the first and second ear assembly vertical moving members, the two-wheel
3, 13 'are further rotated by 180 degrees to move the entanglement thread guide members 10, 10' to the left and right by the pitch P, respectively, and return the horizontal position of the entanglement thread to the core thread to the original position. Then, one cycle of the position changing movement of the entanglement thread is completed.

FIGS. 4A, 4B, and 5C and FIGS. 5A, 5B, and 5C schematically show how a reno device according to the present invention forms full reno and half reno. 4 (A) and FIG. 5 (A) show the relationship between a full reno and half reno two-wheeled vehicle and a fixed cam.
(B) and (B) of FIG. 5 show the relationship between the opposing vertical movement of the entanglement thread guide hole and the core thread needle of the fullreno and the half-reno, and the position changing movement of the entanglement thread guide hole. FIG. 5C and FIG. 5C show the relationship between the weft insertion of the loom and the wefting motion by the reed 18, that is, the movement of the loom for each cycle and the reno device in the cross section direction of the weft, and FIG. )
(E) shows the weaving structure for one row of fullreno and half reno to be formed, C represents the weft, and the appended numbers represent the order of weft insertion.

In the case of a full reno, if the heaving frame is programmed to move up and down in one cycle of the weaving machine so that the reno device makes one cycle of opposing vertical movement, the weft 1
In the case of a half-reno, if the heddle frame is programmed to move up and down in one cycle in a two-loom loom, the weaving is performed every two wefts. It will go. The above program is set by selectively changing the control program of the opening driving device for the ear assembly as described above.

[0021]

According to the present invention, the full reno and the half reno can be changed only by changing the program of the opposing vertical movement of the first and second ear assembly vertical moving members by the same mechanism. In addition, the range of types of fabrics set on the loom can be expanded.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a reno device of the present invention.

FIG. 2A is a side view of a main part of a reno device of the present invention,
(B) is a rear view of the main part.

FIG. 3A is an enlarged front view showing a relationship between a two-wheeled vehicle and a fixed cam, and FIG. 3B is a longitudinal side view thereof.

FIG. 4A is an explanatory diagram of an operation sequence for one cycle between a two-wheeled wheel and a fixed cam when a full reno is formed in the present invention;
(B) is an explanatory diagram of an operation sequence for one cycle as viewed from the warp direction of the core yarn needle and the entanglement yarn guide hole at the time of fullreno formation according to the present invention, and (C) is a diagram illustrating the operation of the core yarn needle at the time of fullreno formation according to the present invention. Explanatory drawing of the operation sequence for one cycle as viewed from the weft direction of the entanglement thread guide hole and the reed, (D) is an explanatory diagram showing a full-reno ear structure for one row, and (E) is a half-leno ear structure for one row. Explanatory drawing showing an organization.

FIG. 5 (A) is a diagram showing a sample obtained when a half reno is formed in the present invention.
Explanatory drawing of the operation sequence for one cycle of the wheel and fixed cam,
(B) is an explanatory diagram of an operation sequence for one cycle as viewed from the warp direction of the core yarn needle and the entanglement yarn guide hole at the time of half-leno formation in the present invention, and (C) is a diagram illustrating the operation of the core yarn needle at the time of half-leno formation of the present invention FIG. 5 is an explanatory diagram of an operation sequence for one cycle as viewed from the weft direction of the entanglement yarn guide hole and the reed.

[Explanation of symbols]

1, 1 'Vertical moving member for first ear assembly 2, 2' Vertical moving member for second ear assembly 4, 4 'Stay 5, 5' Fixed cam 7 ₁ , 7 ₂ ... Needle for core thread 8 Sliding elements 9,9 'horizontal moving body 10, 10' tangle yarn guide members 12, 12 'guides 13' 2 leaf wheel 14, 14 'through a pin (crank pin) 15, 15' the needle lower end of the bore 16 _1, 16 ₂ '... tangling yarn guide holes 17, 17' long holes A, A _1, A ₂ ·· core yarn B, B _1, B ₂ ·· tangling yarn C, C _1, C ₂ ·· weft

Claims (3)

[Claims] 1. A core yarn woven in the same direction as a warp with respect to a cut end of a weft on one or both sides of a woven fabric woven by a shuttleless loom, and a tangled yarn interposed on both sides of the core yarn. This is a reno device for a shuttleless loom to be assembled with ears, wherein two convex cam portions having a center of rotation as a symmetrical point are connected to one of the sliding members making an opposing vertical movement by two parallel surfaces. A straight cam having two leaf wheels combined and supported with a phase shift of 90 °, and one sliding body having a flat surface at a position engaging with each of the two leaf wheels and having a height up to the parallel plane of the two leaf wheels. Are fixed, and every two cycles of the opposing vertical movement
A reno device for a shuttleless loom, characterized in that an intermittent rotating motion in which an impeller rotates by 90 ° in a certain direction and stands still is converted into a position changing motion of a tangling yarn. 2. A core yarn woven in the same direction as a warp with respect to a cut end of a weft on one side or both sides of a woven fabric woven by a shuttleless loom, and a tangled yarn arranged on both sides of the core yarn. What is claimed is: 1. A reno device for a shuttleless loom, comprising: a first and a second vertically movable member for a pair of ears, which are simultaneously operated in opposite directions in a vertical direction in relation to a weaving cycle of the loom; A stay attached to the up-down moving member, a pair of fixed cams fixed to the stay so as to face up and down, a needle attached to the stay and supplying a core thread, and a second ear assembly A sliding body connected to a vertical moving member and slidably mounted vertically along the stay, and rotatably mounted on the sliding body around a horizontal axis corresponding to the pair of fixed cams, In the middle of the ascent stroke and the descending stroke of the A two-wheeled wheel which is rotated in the same direction by 90 ° by the fixed cam each time in the middle; and a two-wheeled wheel is disposed on the sliding body on both sides of the two-wheeled wheel so as to be movable in the lateral direction. A pair of lateral moving bodies which are simultaneously moved in the opposite direction by a half of the intersecting distance of the tangled yarn by the rotation of the needle; and a needle attached to the pair of lateral moving bodies, respectively, for inserting and supplying the core yarn. A entanglement thread guide member for guiding and supplying an entangled thread to both sides via an entanglement thread guide hole; and the first and second ear-raising and lowering members for the weaving cycle of the loom. And a program for simultaneously performing one reciprocating operation in the up and down direction in one reciprocation direction, and selecting the above program and setting the first and second ear assembly vertically moving members to any one of the above cycles. At the same time upside down 2 in that 1 the pair of fixed cam for each reciprocating opposite operation
Rotating the impeller by 180 °, and by rotating the impeller by 180 °, the entanglement thread guide member is moved alternately on both sides of the needle via the pair of lateral moving bodies. Characteristic Reno device for shuttleless loom. 3. The shuttleless loom according to claim 2, wherein a plurality of sets of the core thread insertion supply needles and the entanglement thread guide holes are provided at intervals of the position alternation movement distance of the pair of horizontal moving bodies. Reno device.