JPS6075648A - Weft yarn length measuring apparatus in 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 Technical Field The present invention relates to a weft supply unit that stores the supplied weft at 60 (after measuring the weft length, winding the measured weft once and storing it in the weft inserting unit and the weft insertion unit y). There is something about a weft length measuring device used in weaving that pulls out the wound weft.

BACKGROUND TECHNOLOGY In general, in a fluid injection type loom, a device is installed on the weft side 1 for measuring the length of the weft yarn for one weft insertion and temporarily storing the measured weft yarn. There is.

As shown in Fig. 1, this type of weft length measuring device winds the weft Y supplied from the weft supply section 1, measures the length of the weft 4, winds the weft to a length of 8111, stores the weft once, and inserts the weft. Sometimes, a weft length measuring device 2 is employed which draws out the weft yarn Y that has been wound and stored. This weft length measuring device 2 includes a rotary support shaft 2a having a yarn guide hole, a drum 2b that is supported in a stationary state by the support shaft 2a, and a rotary support shaft 2a.
It is composed of a thread winding tube (not shown) that communicates with the thread guide hole of a and rotates around the drum 2b integrally with the support shaft 2a, and a timing pulley 2C fixed to the rotation support shaft 2a. There is. 1 (no), timing pulley 2C
and a drive shaft 3 operatively connected to the rotating part 1 FII source of the loom.
A timing bell 1 is connected to a timing pulley 4 fixed to the timing pulley 4, and as the machine rotates, the rotation support shaft 2a is rotated, so that the weft Y turns to the bobbin winding side and the drum 2 is rotated.
1) The first volume is long.

By the way, the drive φII jl'llll 3 f is operatively connected to the rotational drive source of the loom via a Clara f- (not shown). This clutch has a relative fixed position connection relationship, and has a drive shaft 3 with respect to the rotational drive source side.
When the sides are in the meshing position 1) r r 3 (10 degree rotation I2) ↓, they will mesh again.

Now, if the error thread is woven into the woven fabric in 1r-mistake R1, then the 111 machine should be reversed to remove this error thread from the woven fabric. However,
In order to prevent the weft sub-length device 2 from being reversed, it is necessary to avoid reversing the submerged table when the clutch is released.

In other words, as the machine is reversed, a phase difference occurs between the -C machine f; side, that is, the rotational drive source side and the weft sub-length device side.

Therefore, after reversing the spacing, it is necessary to rotate the weft length measuring device 2 in the normal direction and perform phase matching. Attach the operating handle 6, rotate the handle 6, and rotate the weft length measuring device 2 in the normal direction until the clutch engages again.
there was. However, this operating handle G is always attached to the drive shaft 3.
1.1), so during normal operation of the
3, it rotated together with the drive shaft 3, which was extremely dangerous.

Also, operate the operating handle 6 1' to turn the lifting platform t.
If the direction is wrong, reverse the weft sub-length device 2 side and
There is a risk of winding the jrNY in the opposite direction.

However, manual operation to avoid rotation of the drive shaft 3 is extremely troublesome when operating a loom.

Purpose The present invention was made while considering the above-mentioned problems, and its purpose is to eliminate the risk of reverse operation when performing phase matching between the machine stand side and the weft sub-length device side, and to facilitate operability. The purpose of this company is to provide a weft length measuring device for the ifi LJ loom.

In order to achieve the above-mentioned object, in the present invention, a clutch that releasably connects and covers the weft yarn length measuring device and the machine table rotating drive source is used to release the clutch with respect to the drive 11 on the weft sub-length device side. We adopted a configuration in which one rotor is operatively connected to prevent the drive shaft from rotating.

In the following examples, we will explain how to supply multicolor yarn (reflection or mixing)
'll! Yarn supply unit: supplying one type of weft yarn)
An embodiment of the present invention in which the present invention is embodied in a loom equipped with two weft length measuring devices will be described with reference to FIGS. 2 to 6.

Weft yarn supply section 7/JI+) The first weft side (1) where the length of the supplied weft yarn Y1 is measured 2nd weft length measuring device 1 that measures the length of '+1 yarn Y2
The ratio of the number of teeth to the timing pulley 10b fixed to the rotation support shaft 10r+ of 0 is set to 1:2. Soshi C1
Timing bells 1 to 13 are hung between the timing pulleys 81), 10b, and the timing pulley 12 fixed to the drive shaft 11.

Therefore, when the drive shaft 11 is rotated, the rotation support shaft 8a,
1Qa is rotated, and the wefts Y1 and Y2 are each wound f'
The rotational support shaft 8a rotates at twice the speed of the rotational support shaft 10a. The winding speed of the weft Y2 in the second weft length measuring device 10 is 2(8),
The weft Y1 is inserted twice consecutively, and then the weft Y1 is inserted twice.
It is written in verse.

A speed reduction mechanism clutch (14) and a speed increaser (Ij4, etc.) are provided between the drive shaft 11 and the drive shaft 14, which are connected to the IC1 (which drives the rotation of the loom). J, drive shaft 1
4, and a thread 17 which is rotatably supported on the rotating shaft 1G and meshes with the gear 15 provides deceleration! ia is made up of 4151, and when the Yamanaka 15 rotates once, the gear 17 rotates 1/33 times. Further, a speed increasing mechanism 41 is formed by a gear 18 fixed to the drive shaft 11 and a gear 19 that is slidably supported by the rotating shaft 16 in the axial direction and meshes with the shaft 18.
4 is completed, gear 19 rotates once, and gear 1
8 rotates three times, J, turning into a sea urchin. The gear 19 has the tooth width 1 by the τ pressing spring 20 through its protrusion 19 it 4.
7 side (=J force is applied.Then, the 1st thread joining protrusion '17a installed on the gear 17, etc.
When the 1 medical matching concave hole 191I is in the 1N matching state,
The rotation of the drive shaft 14 is transmitted to the drive shaft 11 without being changed in speed. The tip of the two-pronged lever 2''1 is engaged with the annular groove 19c formed on the circumferential surface of the protrusion 19a, and the lever 21 is connected to the handle 22 as shown in FIG.
It is rotated about the shaft 23 by operating the . By operating the handle, the tooth width 19 is slid in the axial direction of the rotating shaft 1G against the pressure spring 20, and as shown in FIG. The matching condition is canceled. At this time, the operational connections between the gear 17 and the gear 19 are released, such as the drive 1111 on the weft length measuring device side from the clutch formed in J:13, and the drive shaft 1/1 on the machine rotation drive source side from the clutch. be done.

Drive @ 111 1 1 of coaxial 11 shown by the arrow in Figure 2
The pulley 24 is attached via a one-sided clutch that engages in the direction of rotation (13). When the coaxial shaft 11 and the drive shaft 14 are disconnected, the drive shaft 11
It can be rotated by C through 5 and 26. The motor 26 is driven based on an operation command from the controller 27. A mitt switch 28 (represented by ) is provided near the pressing spring 2o side of the gear 19,
As shown in FIG. 2, the fitting recess 191) and the engaging protrusion 17a
When the vinegar is in the correct state, the switch 28 is OFF.
=C dust in condition, fitting recess 191 as shown in Figure 3)
The limit switch 28 is turned on when the fitted state with the engagement protrusion 17a is released. Then, when the limit switch 28 is in the ON state, the -21st 1"-ru device 27 sends a Vl: movement command to the motor 26 in response to the ON operation of the operation button 29, and the limit switch 28 is turned on. When turned off, the operation commands are stopped at I and Q.

Now, the second weft insertion error of fθ yarn Y1, which is d3G, occurs in the 14th weft insertion cycle, and the machine stops at the PHI and J phase as shown in Figure 6. (In order to prevent damage to various parts due to sudden deceleration, the machine base operates by inertia for approximately one rotation.)

Note that the weft yarn Y2 following the missed yarn Y1 is only inserted into the instep, and is not woven into the weave 11.

Said miss yarn Y 1 /! : To remove it from the machine cloth, operate the handle 22 to release the connection between Yamanaka'l 7 and Yamanaka 19, and remove it from the machine side. , Yamanaka 17 rotates 2/3, and the engaging protrusion 17a is shown in FIG. 7(a).
)) to the J position shown. On the other hand, when the machine stops, the weft length measuring device side has a phase Pl-11 as shown in Fig. 6.
It stops at the phase of PH1- corresponding to . When J3 is in this state, the fitting state between the fitting recess 191) and the engaging protrusion 17a is released by operating the handle 22 in 11a, that is, the limit switch 28 is turned on to the Yamanaka 19. has been done. Therefore, when the operation button 29 is pressed, the controller 1 to the roll device 27 sends an A'1 movement command to the motor 26, and the drive shaft 11 is rotated once in the direction of the arrow as shown in FIG.

Accordingly, the gear 19 rotates 1/3 and moves from the position shown in FIG. 7(b) to the degree position shown in FIG. 7(C), and the engagement protrusion 1i17a and the fitting opening 1i17a and the fitting opening 1i17a are connected to each other. L 191+ is fitted again, the gear 17 and Yamanaka 19 are connected, and the limit I switch 28 is turned to 0 [F], and the controller 27 is turned on.
immediately stops driving the motor 26. in this way,
When the gear 19 rotates 1/3, the Yamanaka '18, that is, the weft length measuring device side turns once %i L, and the weft length measuring device side reaches PH1- in FIG. 6, and the phase is indicated by P I-10-. Move to. This phase P HO- is the same as when the white side stops, and it means that the phase on the machine side and the phase on the weft length measuring device side match. -ru.

In this way, in the present invention, frl! The machine base was reversed in order to process the wrong yarn due to the occurrence of insertion errors, and the phase matching U between the weft length measuring device side and the machine base side, which is performed somewhat along with the reverse rotation, was performed by the motor 2G. Therefore, drive shaft 1
Unlike the conventional method, which avoids manual rotation of the IQ combination according to the present invention, its operation is extremely easy.Also, the present invention is based on the Therefore, there is no need for the weft length measuring device to be reversed.

In the embodiment described above, a one-sided clutch is interposed between the pulley 24 and the drive shaft 11.
During normal operation of the motor, the rotation of the drive shaft 11 is
It is never transmitted to 0.

tcI13, the present invention is not limited to the above-mentioned embodiments, and for example λ, automatically removes the wrong threads woven into the weave 4+ (in Oriwahide, based on the wrong thread processing completion signal). C(;(The clutch that connects the white side and the length measuring device side is automatically released, and as in the previous embodiment, this clutch release is detected by a limit switch, and based on this detected value, 7- In this case, of course, the operation button 29 of 13 as in the above embodiment becomes unnecessary.Therefore, in the present invention, the operation button 29 of The method of performing the side-to-side phasing U is the one that deals with the automation of the loom.

Effects As detailed above, the present invention 1.1 has an excellent effect in that the operation of performing four phase alignments on both the one side and the weft length measuring device is very easy, and there is no risk of erroneous operation. Zuru.

[Brief explanation of the drawing]

Fig. 1 is a side view of a main part showing a conventional structure for manually rotating the weft length measuring device side, Fig. 12 is a side view showing an embodiment embodying the present invention, and Fig. 413 is a side view Side 1fii i+' indicating the disconnected state of the clutch mechanism! 4 is a rear view without showing the arrangement relationship between the timing pulley and the timing bell 1, and FIG. 5 is a sectional view showing a change from the Δ-A line cut in FIG. 2. Weft length measuring device @8, 10, drive shaft 11, clutch machine (14
Gear 17.19, motor 20, limit switch 28゜Patent applicant: Toyota Automobile Co., Ltd.
Attorney Patent Attorney Jyu 1) Hiroshi Prize Figure 5

Claims (1)

[Scope of Claims] 1. The clutch is connected to the drive shaft of the weft length measuring device from the clutch that releasably connects the weft length measuring device side of the wrapping length measuring method and the machine rotation drive side. JJI's weft length measuring device for a loom, characterized in that a motor for rotating the drive shaft is operatively connected to the release II, 1 of the loom. 2. The weft length measuring device installed in a loom according to claim 1, wherein the engagement and release of the clutch is detected by a limit switch.