JPH0149815B2 - - Google Patents

Description

Detailed Description of the Invention Technical Field The present invention involves winding and measuring the length of a weft supplied from a weft supply section, and once winding and storing the measured weft, and when inserting the weft, the wound and stored weft The present invention relates to a weft length measuring device that is adapted to pull out the weft length.

Prior Art In general, shuttleless looms, particularly fluid jet looms, are equipped with a weft length measuring device that measures the length of the weft for one weft insertion in advance and temporarily stores the measured weft. ing. This type of weft length measuring device measures the length of the weft supplied from the weft supply section by wrapping it, temporarily stores the measured weft, and then pulls out the weft that has been wound and stored when inserting the weft. A weft length measuring device has been proposed.

The outline of this winding type weft length measuring device will be explained based on FIGS. 1 and 2. 1 is a bracket fixed to a side frame 2 of a loom, and a gear 1b is attached to a protrusion 1a of the bracket 1. It is integrally formed. 3 is a support arm fixed to the upper part of the bracket 1, and has a hanging arm 3a facing the bracket 1. Reference numeral 4 denotes a rotary support shaft that is rotatably mounted through the bracket 1 and the hanging arm 3a, and a weft guide hole 4a that guides the weft Y supplied from a weft supply unit (not shown) such as cheese is connected to the rotation support shaft 4. It is provided along the axis. 5 is a toothed pulley fixed to the support shaft 4, and 6 is a timing belt hung around the pulley 5, which is driven in synchronization with the weaving operation and rotates the rotary support shaft 4. .

Reference numeral 7 indicates a support member located in front of the gear 1b (on the right side in FIG. 1) and is fixed to the rotation support shaft 4, and reference numeral 8 indicates a wrapping arm supported by the support member 7 obliquely to the support shaft 4. The tip thereof has an opening 8b on a first tapered circumferential surface 10a of the drum 10, which will be described later, and a weft guide passage 8a formed inside the opening 8b communicates with the weft guide hole 4a. Reference numeral 9 denotes a bracket which is attached to the front side of the support body 7 so as to be rotatable relative to the support shaft 4, and has a gear 9a integrally formed on its circumferential surface, and a drum on its front surface. 10 is fixed to the support shaft 4 so as to be relatively rotatable. Reference numeral 11 denotes a planetary gear mechanism fixed to the support 7, in which an input planetary gear 13 fixed to one end of the shaft 12 meshes with the gear 1b, and an output planetary gear fixed to the other end of the shaft 12. 14
is meshed with the gear 9a. Further, the ratio of the number of teeth between the gear 1b and the input planetary gear 13 is set to be the same as the ratio of the number of teeth between the gear 9a and the output planetary gear 14.
Therefore, when the timing belt 6 is driven and the rotary support shaft 4 is rotated, the winding arm 8 rotates together with the support shaft 4 and the planetary gear mechanism 11
The planetary gears 13 and 14 rotate together, and both planetary gears 13 and 14 rotate as a unit.
The drum 10 revolves around the support shaft 4 while meshing with the drums b and 9a, and the drum 10 is held stationary without rotating.

15 is a first locking pin for weft length measurement that is located on the first tapered circumferential surface 10a of the drum 10 and retracts; 16;
is a second locking pin for weft storage that is located on the second tapered circumferential surface 10b of the drum 10 and retracts. Or, it appears and disappears by a crank mechanism, etc.).

17 is the flange portion 18 and the second tapered peripheral surface 10b
A plurality of weft length measurement adjustment rods (only one is shown in Figure 1) are installed between the drum 1 and the drum 1.
The drum 10 is located below the drum 10 and is arranged substantially radially around the rotation support shaft 4, and its position can be adjusted by a nut 20 along a guide groove 19 provided in the radial direction of the drum 10. Each rod 17 forms approximately a circumference with the drum 10, and each rod 17 forms a substantially circular circumference with the drum 10.
First inclined portion 17a corresponding to tapered peripheral surface 10a
and a second inclined portion 17b corresponding to the second tapered peripheral surface 10b.

Now, when the timing belt 6 is driven in synchronization with the weaving operation and the winding arm 8 rotates around the stationary drum 10, the weft guide hole 4a, weft guide passage 8a and opening 8b are opened from the weft supply section. The weft yarn Y fed through the weft thread is wound around the first tapered circumferential surface 10a and the first inclined portion 17a and its length is measured while being locked by the first locking pin 15 in a protruding state. When the weft Y is wound and measured by the length of one weft insertion, the first locking pin 15 is recessed into the drum 10,
The weft Y whose length has been wound and measured moves from the first tapered circumferential surface 10a and the first inclined portion 17a to the second tapered circumferential surface 10b and the second inclined portion 17b. Then, the weft yarn Y that has moved to the second tapered circumferential surface 10b and the second inclined part 17b is stopped by the second locking pin 16 in the protruding state, and is stopped on the second tapered circumferential surface 10b and the second inclined part 17b. Once wrapped and stored.

This wrapped and stored weft Y is attached to the second locking pin 16
When the weft is inserted in synchronization with the weft insertion timing, it is pulled out from the drum 10 and the weft is inserted.

By the way, in response to changing the weave width of woven fabric, weft Y
To change the length measurement amount, loosen the nut 20 and move the adjustment rods 17 along the guide groove 19, then tighten the nut 20 again and move the adjustment rods 17.
The position of the rod 17 is adjusted, but this adjustment work requires adjusting each adjustment rod 17 separately.
It was extremely troublesome.

Purpose The present invention has been made in order to eliminate the above-mentioned defects, and its purpose is to adjust the winding of a plurality of length measurement amount adjusting members forming at least a part of the winding length measuring section and the winding storage section. A plurality of guide grooves are formed to support the ends on the side of the storage part and guide the ends of the plurality of length measurement amount adjusting members on the side of the wrapped length measuring part with respect to the side circumferential part of the wrapped length measuring part. an adjusting member body having at least one guide hole for guiding an end of the plurality of length measurement amount adjusting members on the winding length measuring part side near the support part; It is an object of the present invention to provide a weft length measuring device for a loom, which allows the length measurement amount to be easily changed by disposing the hole and the guide groove so as to intersect and to be adjustable in position.

Examples Examples 3 to 5 which embody the present invention will be described below.
To explain based on the figure, 21 is a drum forming a part of the winding length measuring part and the winding storage part, and the inclined part 21a where the first locking pin 15 appears and the second locking pin 16 are connected. It has a tapered peripheral surface 21b that protrudes and retracts. Reference numeral 22 denotes a plurality of engagement grooves (six in this embodiment) provided radially in the lower half of the front surface of the drum 21, and is located at the end of the length measurement amount adjustment rod 17 on the second inclined portion 17b side. (hereinafter referred to as the tip) is engaged. 23 is a screw hole provided in the center of the front surface of the drum 21.

Reference numeral 24 denotes a regulation disk that covers the front surface of the drum 21, and includes an adjustment rod 1 that is engaged with the engagement groove 22.
7 is pressed into and supported within the engagement groove 22. The disk 24 is fixed to the drum 21 by a screw 25 that is screwed into the screw hole 23 through a through hole 24a provided in the center thereof. Note that 26 is a washer.

Reference numeral 27 indicates a plurality of guide grooves (six in this embodiment) provided in the radial direction of the drum 21 with respect to the flange portion 18.
The end portion (hereinafter referred to as the base end portion) on the side of the first inclined portion 17a is engaged and guided. Reference numeral 28 denotes a support groove provided in the radial direction of the drum 21 so as to be located between the plurality of guide grooves 27 for the flange portion 18 .

Reference numeral 29 denotes a plurality of guide holes 29a (four in this embodiment) for engaging and guiding the tip of the adjustment rod 17.
It is a semi-circular arc-shaped adjustment member body having an engaging protrusion 29b that is slidably fitted into the support groove 28 at the center thereof.
9b is provided with a screw hole 29c. The adjustment body 29 is press-fitted to the rear surface of the flange portion 18 with the engaging protrusion 29b fitted into the support groove 28 by a screw 30 that is screwed into the screw hole 29c through the support groove 28. It's becoming like that. Furthermore, 31
is Watsiya.

Next, regarding the embodiment configured as described above,
The effect will be explained.

Now, move the plural adjustment rods 17 to the flange part 18.
When the adjustment rod 17 is installed across the front surface of the drum 21, the tip of the adjustment rod 17 is moved into the engagement groove 22 by the regulation disk 24, as shown in FIGS.
The proximal end of the rod 17 is held at the intersection of the guide groove 27 and the guide hole 29a.

In Fig. 3, a plurality of adjustment rods 1 are used to reduce the length measurement amount of the weft yarn in response to changes in the weaving width of the woven fabric.
To adjust the position of 7, do as follows.

First, loosen the screw 25 and press the tip of the adjustment rod 17 into the engagement groove 22 of the regulation disk 24.
The pressure contact state of the adjustment rod 17 is released, and the tip of the adjustment rod 17 is slidably released within the engagement groove 22. Next, loosen the screw 30 so that the engagement protrusion 29b remains fitted into the support groove 28, and
The pressure contact state with respect to the flange portion 18 is released.
Thereafter, the engaging protrusion 29b slides along the support groove 28 toward the axis of the drum 21.
The adjustment body 29 is moved. Then, guide groove 2
7 and the guide hole 29a moves toward the axial center of the drum 21, and the base end of the adjustment rod 17, which is locked at the intersection, moves toward the axial center of the drum 21. In this case, since the sliding direction of the tip of the adjustment rod 17 is restricted by the engagement groove 22, the adjustment rod 17 is moved only in the direction of the engagement groove 22, and from the state shown in FIG. Transition to the state shown in the figure.

Then, the screw 30 is tightened again to press the adjustment body 29 onto the flange portion 18, and the screw 2
5 and press-supports the tips of the adjustment rods 17 in the engagement grooves 22, the positions of all the adjustment rods 17 are adjusted, and the work of changing the length measurement is completed.

The same method can be used when increasing the length measurement amount.

As described above, in this embodiment, the adjustment rod 17 is located at the intersection of the guide groove 27 provided in the flange portion 18 and the guide hole 29a provided in the adjustment member body 29.
In order to lock the proximal end of the adjusting rod 17 and to allow the distal end of the adjusting rod 17 to slide when changing the length measurement, the regulating disc 24 locks the end of the adjusting rod 17 into the engaging groove 22.
By holding the adjustment part body 29 in the support groove 2
The positions of all the adjustment rods 17 can be adjusted by simply moving them along line 8, and the work of changing the amount of length measurement can be done easily.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be embodied as follows, for example.

(1) Adjusting the positions of a plurality of adjustment rods 17 using two or more adjustment members.

(2) Guide hole 29a corresponding to each adjustment rod 17
to form divisions.

(3) As shown in FIG. 7, the positions of the plurality of adjustment rods 17 can be adjusted by rotating the pair of adjustment parts 29 about the pair of shafts 32.

In this embodiment, an arcuate engagement protrusion 29b provided on the adjustment body 29 is slidably fitted into an arcuate guide groove 33 centered on the shaft 32.

(4) Attach the adjustment body to the front surface of the flange portion 18 by pressure contact.

(5) The regulation disk 24 is omitted, and the tip of the adjustment rod 17 is slidably supported by a support hole provided on the front peripheral surface of the drum 10.

(6) A support hole is provided in the front surface of the drum 21, and the tip of the adjustment rod 17 is rotatably supported in the hole.

(7) The present invention is embodied in a weft length measuring device in which a winding length measuring section and a winding storage section are formed using only the adjusting rod 17.

(8) The present invention can be embodied in a weft length measuring device in which the winding arm is stationary and the drum 10 is rotating.

Effects As described in detail above, the present invention supports the tips of a plurality of length measurement amount adjustment members forming at least a part of the wrapped length measuring section and the wrapped storage section, and the wrapped length measuring section A support portion in which a plurality of guide grooves for guiding the base end portions of the plurality of length measurement amount adjustment members is formed is provided on a side circumferential portion of By arranging the adjustment member having at least one guide hole for guiding the base end of the member so that the guide hole intersects with the guide groove and whose position can be adjusted, the amount of length measurement can be easily adjusted. Since it has the effect of allowing changes to be made, it is an excellent invention for industrial use as a weft length measuring device in a loom.

[Brief explanation of drawings]

Fig. 1 is a side view showing a conventional winding type weft length measuring device, Fig. 2 is a front view thereof, Figs. 3 and 4 are a front view showing an embodiment embodying the present invention, and Fig. 5 6 is a partially cutaway sectional view showing a state in which the adjustment rod is supported, and FIG. 7 is a front view showing another example of the present invention. Adjustment rod...17, first slope part...17a,
Second inclined part...17b, flange part...18, drum...21, engagement groove...22, regulation disc...2
4, Guide groove...27, 33, Support groove...28,
Adjustment body...29, guide hole...29a, engaging protrusion...29b, screw hole...29c, screw...3
0, axis...32.

Claims (1)

[Scope of Claims] 1. A weft supplied from a weft supply section is wrapped around a winding length measuring section for length measurement, and the weft whose length has been wrapped and measured is transferred from the winding length measuring section to a winding storage section. , in a weft length measuring device adapted to pull out the weft that has been wrapped and stored during weft insertion, the tips of a plurality of length measurement amount adjustment members forming at least a part of the wrapped length measuring section and the wrapped storage section; , and against the side circumference of the winding length measuring section,
A supporting portion is provided in which a plurality of guide grooves are formed to guide the base end portions of the plurality of length measurement amount adjustment members, and further, the base end portions of the plurality of length measurement amount adjustment members are guided in the vicinity of the support portion. 1. A weft length measuring device for a loom, characterized in that an adjustment member having at least one guide hole is arranged so that the guide hole intersects with the guide groove and the position thereof can be adjusted. 2. The loom according to claim 1, wherein the support part is a flange part provided on the lower side of the winding length measuring part of the drum forming part of the winding length measuring part and the winding storage part. Weft length measuring device. 3. The weft length measuring device for a loom according to claim 2, wherein the plurality of guide grooves are provided radially around the axis of the drum with respect to the flange portion. 4. Claim 3, wherein the adjustment body is constituted by a semicircular arc-shaped member attached to the flange portion so as to be slidable in the radial direction of the drum and intersect with the plurality of guide grooves. A weft length measuring device for a loom as described in 2. 5. The weft length measuring device for a loom according to claim 4, wherein the length measuring amount adjusting member is a length measuring amount adjusting rod installed from the flange portion to the front portion of the drum. 6. A weft thread in a loom according to claim 5, wherein the tip of the length measurement amount adjusting rod is supported within an engagement groove provided on the front surface of the drum by a regulation disk fixed to the front surface of the drum. Length measuring device. 7. The adjustment body is constituted by a pair of arc-shaped members attached to the flange part so as to be rotatable about one end and intersect with the plurality of guide grooves. A weft length measuring device for a loom according to scope 2. 8. The weft length measuring device for a loom according to claim 5, wherein the tip of the length measurement amount adjusting rod is slidably supported in a support hole provided on the front peripheral surface of the drum. 9. The weft length measuring device for a loom according to claim 5, wherein the tip of the length measurement amount adjusting rod is rotatably supported in a support hole provided in the front surface of the drum.