JPS5953742A - Apparatus for measuring length of weft yarn in fluid jet type loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a weft yarn for use in a fluid jet loom, in which the weft yarn supplied from the weft supply section is wound twice around the winding surface of the weft length measuring section, and the weft yarn is pulled out during weft insertion. This relates to a length measuring device.

In general, fluid jet looms (in this case, a weft length measuring device is not provided to measure the length of the weft yarn for one weft insertion in advance and to store the measured weft yarn). This type of weft length measuring device continuously passes the weft yarn from a weft supply section around a drum serving as a weft length measuring section (the weft yarn is fed through the tip opening of a rotating yarn winding tube to the tram). A weft length measuring device has been proposed in which the length-measured weft is once wound and stored, and when the weft is inserted, the wound and stored weft is pulled out.

This winding type weft 4:11 length device controls the length of the twill wound on the drum, the measured length of the yarn, and the withdrawal of the weft by a pair of weft locking pins that alternately protrude and retract from almost the same part of the drum circumference. It's about to be controlled.

In addition, when changing the weft length measurement amount in accordance with the weaving width of the woven fabric, a plurality of weft length measurement amount adjustment bodies are provided on the drum circumference (two pairs) so that the position can be adjusted in the radial direction of the drum, Measure the length of the twill and thread by performing body position adjustment i2'+i for each adjustment '1;
, [a method of changing is being taken].

However, it is troublesome to adjust the key 1 to 11 of each of the plural adjusting bodies, and it is difficult to adjust the key 1 to 11 to obtain the correct amount of sub-length.

The present invention has been made in view of (1) IJ's major defects, and its first purpose is to form an elastic member into an annular shape (curved 4,
By configuring at least one end of the length measuring part to adjust the mounting position, the length measurement amount of the weft can be adjusted easily and accurately. The objective is to provide a fluid injection type 4fc('i,'14) that can be performed in the following manner.

1-', an embodiment embodying the present invention will be explained based on FIGS.
A gear 1a is integrally formed in FIG. 1 (on the right side in this figure). A support arm 3 is fixed to a part of the bracket 1, and the arm 3 is provided with a hanging arm 3a facing the bracket 1. Bracket 1 and hanging arm 3a + rotation support shaft 4 rotate 1-1 ■ 1'
(It is installed through the bracket and guides the weft Y, which is supplied from a weft supply unit (not shown) such as a cheese or the like (a weft guide hole 4a is provided along the axis of the bracket). 1 and the hanging arm 3a.
0 is a tooth/boo 95 fixed to the same pulley 5.
There are 6 timing belts and 1 belt. The belt 6 is driven in synchronization with the weaving operation of the machine base, and the rotation support shaft 4
[iiJ l17].

The rotation support 1.1 shaft 4. , a support 7 is fitted and fixed to the bobbin winding (= J pipe 8 is installed ) γ is supported, the tip of which is a weft length measuring member 12 which will be described later.
□The inclined part 1' 2 a l is arranged. The support 4-゛f is located on the +'jiJ side of the body 7,
A bracket 9 is supported on the support J and II shafts 4 so as to be relatively rotatable, and a gear 9a is integrally formed on the peripheral surface of the rear side thereof, and a support disk 10 is fixed to the front surface thereof. A planetary gear and a mechanism 11 are fixedly attached to the support 7G, and the input planetary gear 11a is meshed with the (1) nth gear 1a, and the output planetary gear iib is meshed with the gear 9a. The ratio of the number of teeth between the gear 1a and the input planetary gear 11a is set to be the same as the ratio of the number of teeth between the gear 9a and the output planetary gear 11b. Therefore, when the timing belt 6 is driven and the rotation support shaft 4 is rotated, the old bobbin tube 8 is rotated on the support shaft 4.
At the same time, the planet i4 knee rotates integrally with the wheel I (the wheel structure 11 also rotates integrally, and the two-way star gears 11a and 11b revolve around the rotation support shaft 4 while meshing with the gears 1a and 9a, The bracket 9 and the support disk 10 are held stationary without rotating.

A weft length measuring member 12 is attached to the front surface of the support disk 10, which has a thread winding surface formed by forming an elastic plate into an annular shape and curving so that both ends overlap. One end of the length measuring body 12 is attached to the support disk 10 with a caulking pin 13.
The other end is fixed to the disk No. 10 by a bolt 14 and nut 15 inserted through a hole 10a provided along the circumferential direction of the disk 10, and the mounting position can be adjusted in the circumferential direction. It is possible.

A pair of first and second weft locking bins 16,17 are provided at the overlapping portions of both ends of the plate member. (
The bolt 1 corresponds to the through hole 18 and the circumference 18 provided here.
Similarly, the second locking pin 17 can protrude from the inclined part 12a through a long hole 19 provided on the crimping pin 13 side.
It can protrude from the horizontal portion 12b through a long hole 21 provided on the bolt 14 side Q corresponding to the bolt 14. That is, as the pair of cam plates 22 and 23 fixed to the rotary support shaft 4 rotate, the two H-bins 16 and 17 move around the support disk 10 (which is rotatable) and the pair of levers 24 which are attached The tip of .25 (this is designed to alternately emerge and retract from the thread winding surface of the weft length measuring unit 12 via the provided cam followers 24a and 25a). , is a guide member that slides and guides both locking pins 16 and 17.

Now, the timing belt 6 is driven simultaneously with the weaving operation of the weaving machine, and the weft length measuring unit 1 with the thread winding tube 8 in a stationary state.
2, the weft guide hole 4 is moved from the weft supply section to the weft guide hole 4.
The weft yarn Y, which is supplied to the IFF through the old bobbin tube 8fa, is held by the first locking pin 16 in a protruding state, and is wound around the inclined portion 12a41G twice. When the weft yarn Y is wound by the weft insertion length (J keeled rJij+), the first locking pin 16 sinks into the weft length measuring body 12, and the inclined portion 12 a J:,
The weft yarn Y wound around moves to the horizontal portion 12b.

Then, the weft yarn Y that has moved to the horizontal portion 12b is further supplied to the horizontal portion 12b by the second locking pin in the protruding state.

When the weft Y is wound around the horizontal part 12b'2 by the weft insertion length, the first locking pin 16 protrudes and the second locking pin 17 sinks, and the weft of the horizontal part 12b'2 Y is pulled out from the weft length measuring unit 12 and inserted.

The length measuring meter of the weft yarn Y whose winding length is measured in this way can be changed in accordance with the weaving width of the woven fabric (not shown) in the following manner.

That is, for example, in order to decrease the measured length from the weft length measurement state shown in FIG. Then, when the one-slip nut 15 is tightened, the weft length measuring member 12 is fixedly supported on the support disk 10 with its circumference short (as shown in FIG. 3). .

Conversely, to increase the amount of length measurement, change the hole 1-14 to guide hole 1.
0a in the clockwise direction in FIG. 3.

Since the plate member constituting the weft dill length section body 12 has elasticity, the bending stress generated in the same member extends over the entire plate section, and the winding surface of the weft length measuring section body 12 is almost perfectly circular. maintained in condition. Therefore, the winding state of the weft yarn Y becomes good, and there is no fear that the weft yarns Y will become entangled when the weft yarn Y moves in the weft insertion direction.

Furthermore, since the movement of the adjustable end portion of the weft length measuring unit 12 is approximately proportional to the change in the weft length measurement amount, adjustment to obtain an accurate length measurement amount is very easy.

In this way, in this embodiment, the elastic plate part Δ
is curved into an annular shape to form a bobbin (weft sub-length body 1 having a J plane).
2, one end of the sub-long body 12 is fixed, and the other end is adjustable in the mounting position, so that the amount of length measurement can be easily changed by simply changing the position of one end. It is also easy to adjust to obtain accurate length measurements.

Note that the present invention is not limited to the above-mentioned embodiments, and can be modified and embodied as follows, for example.

(1) In the above embodiment, both the above-mentioned members + L bin 16°1
7 to appear and disappear from a part other than the overlapping part of the weft length measuring part body 120.

(2) As shown in FIG.
1, and its both ends can be adjusted several times.

(3) One end of the weft length measuring member 12 can be adjusted in its mounting position in the circumferential direction, and the other end can be adjusted in position several times in the radial direction.

(4) In order to stabilize the weft length measuring unit 120,
A regulating piece 2 that contacts the inner surface of the length measuring unit 12 as shown in the figure and whose position can be adjusted in the radial direction of the length measuring device 12
7 shall be provided.

The regulating piece 27 is fixed to the front surface of the support disk 10 so that its position can be adjusted by a bolt 28 and a nut 29 inserted into a guide hole IDb provided in the support disk 10, as shown in FIG.

(5) An elastic wire part instead of the plate part]A
The weft length measuring unit 12 is constructed using the following.

(6) The present invention is embodied in a weft length measuring device in which the bobbin guide tube 8 side remains stationary and the weft length measuring unit 12 side rotates.

(7) Engaging the pair of yarn locking bins with the bobbin winding surface from the outside of the weft length measuring unit 12.

As described in detail above, the present invention comprises a weft length measuring section by curving an elastic member into an annular shape, and at least one end of the length measuring section can be adjusted in several positions. As a result, it has the effect of easily and accurately measuring the length of the weft yarn x17a, so it can be used industrially as a weft length measuring device in fluid jet looms.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment embodying the present invention, Fig. 2 is a front view showing a certain length measurement state, Fig. 3 is a front view showing a change in the length measurement amount, and Fig. 4 is a main view. A front view showing the invention separately;
FIG. 5 is an exploded perspective view showing a regulating piece for stabilizing the weft length measuring member. Support disk 10, weft length measuring body 12゜Patent applicant Toyota Industries Corporation representative
Patent attorney Hironobu Onda

Claims (1)

[Scope of Claims] 1. In a weft length measuring device that winds a weft supplied from a weft supply section onto a winding surface of a weft length measuring unit and pulls out the weft at the time of weft insertion, the elastic weft is circularly removed. A fluid having an annular shape (curved) to constitute the first length part body of the weft, and at least one end of the length measuring part body being configured such that the mounting position of the length measuring part body can be adjusted in the circumferential direction of the length measuring part body. Weft length measuring device in a fluid jet loom ζ.2 The weft length measuring member is composed of an elastic plate portion 41.The weft length measuring device in a fluid jet loom according to claim 1. .