JPH02112446A - Tuck-in selvage apparatus for shuttle-less loom - Google Patents

Abstract

PURPOSE:To facilitate the adjustment of the subject apparatus in the exchange of the kind of weft by providing an electromagnetic actuator capable of selectively driving either one of a cutter, a weft end clamping tool and a tuck-in needle. CONSTITUTION:The objective tuck-in selvage apparatus is provided with a cutter 1 to cut a weft inserted with a reed, a waft-end clamping tool 2 to hold an end of the cut weft and a tuck-in needle 3 to carry out the tuck-in of the held weft end into the opening of warps. In the above construction, each of three parts is connected to the main shaft of the loom via an electromagnetic actuator 4. Each electromagnetic actuator is activated or inactivated based on the pattern signal corresponding to the weaving pattern and the rotational angle signal of the loom.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tongue/ear 11 device for a shuttleless loom.

Conventional technology 1! 1 [The tuck-in selvedge device of the shuttle loom is basically:
A cutter that cuts the beaten weft, a weft end 1 and
and a horn hook/needle as a tuck-in part for tucking the held weft end into the warp opening,
These powers! T, Weft ☆: H The tuck-in selvedge functional parts, which consist of the gripper and the tuck-in needle, are connected to the main shaft of the loom by a power transmission mechanism consisting of cams, gears, links, etc., so that they can be operated at the desired timing. (Refer to Japanese Patent Application Laid-open No. 1303/1988).

Problems to be Solved by the Invention In the 5J Li, which uses the tuck-in ear assembly device,
When changing the type of weft, adjust the operation timing of the tuck-in selvedge 111 functional component to match the type of weft in step 17.
It is important to adjust I and J. However, as described in No. 111, in a tuck-in selvage assembly device having a structure in which all the tuck-in selvage functional parts are connected by a single power function and operated at the required timing, the cutter cam is used.

It is necessary to adjust the fixing positions of the HQ yarn end holder cam and the cook-in needle cam with respect to the shaft, and to adjust the respective timings, which requires a great deal of labor and time.

Means for solving the problem: A cutter for cutting the beaten weft, a weft end gripper for holding the cut weft end, and a weft end gripper for holding the cut weft end, and the held weft end in the warp shedding. At least one of a tuck-in component to tuck in, and a tuck-in selvedge functional component consisting of a cutter, a weft end gripper, and a tuck-in component.
An electromagnetic actuator that separately drives the two tuck-in selvedge functional parts and other functional parts of the tuck-in selvedge, and receives a pattern signal from the pattern control device of the loom and a rotation angle signal from the encoder of the main shaft of the VA loom to activate or deactivate the electromagnetic actuator. and an operation instruction device that outputs a signal.

Embodiment As shown in FIG. 1, the tuck-in selvedge assembly device A of this embodiment roughly includes a cutter 1, a weft end holder 2, a tuck-in needle 3 as a tuck-in component, electromagnetic actuators 4 and 5, and an operation instruction device 6. The weft end gripper 2 and the tuck-in needle 3 are separately driven by the cutter 1 by an electromagnetic actuator 4, and the weft end holder 2 and the tuck-in needle 3 are driven separately by an electromagnetic actuator 4. Since the main shaft of the loom is driven by the actuator 5, the operation instruction device 6 receives a pattern signal Q1 from the pattern control device of the loom, such as a pattern signal Q1 such as dobby or jacquard, and a rotation angle signal from the encoder of the main shaft of the loom. Q! In response to this, the electromagnetic actuator 4 receives activation/inactivation signals, that is, the cutter scissor cutting operation signal Q3 and the cutter scissor cutting 1q return operation signal Q4.
while outputting a signal Q5 to indicate activation or inactivation to the electromagnetic actuator 5. It has a structure that outputs Q.

The mechanical structure of this tuck-in selvedge assembly device A will now be explained with reference to FIG. Upper blade 10
is attached to the lower part of the entry side of the body 2 of the tuck-in selvedge assembly device through a bracket 13 so as to face the entry side substantially like a water wing. The lower blade 11 is connected by a pin 15 to a bracket 14, which is different from the above-mentioned one and is provided protrudingly from the lower part of the entry side of the body 12. The electromagnetic actuator 4 is configured with a motor 4 attached to the reed side wall surface of the body 12.
A drive lever 16 is fixed to the output shaft 4a, and the free end of the drive lever 16 is connected to the negative end of the lower blade 11 via a link plate 17. Therefore, as the output shaft 4a rotates in the direction of the arrow The lower blade 11 is rotated in the direction opposite to the arrow
5 and moves downward to perform force and scissor return operation.

Since the weft end (V holder 2) uses a tuck-in selvedge assembly device for the middle selvedge in this embodiment, it is arranged on the left and right sides of the weft insertion direction of the H vine 15.In other words, the two weft end holder shafts A weft end retainer shaft 20 is installed across the front wall and rear wall of the body 12 so as to move at the required timing.
A support 21 is attached to the tip that protrudes toward the entry side from the front wall.

A weft end holder 2 is fixed to the support 21.

The weft end holder 2 is supplied with a vibrator 22 from a pressurized air supply source (not shown).
With the pressurized air sent to the receptacle formed in the peripheral wall of the vibrator, a suction airflow is generated in the part of the recess 23, and the receptacle of the vibrator 22 generates a traction airflow below the recess 23, which is cut by the cutter 1. The receiver is adapted to be moored to the insertion hole 23 at the same time as the weft end is cut.

Similarly to the weft end holder 2, two tuck-in needles 3 are provided at the weft end. Specifically, a Quinn needle shaft 30 is installed across the front and rear walls of the body 12 so that it can move back and forth and rotate forward and backward at the required timing. A tuck-in needle 3 is attached to a tip that projects toward the entry side from the front wall of the body 11 of the in-drunyaft 30. Tuck-in needle 3
By the back-and-forth movement and reciprocating rotation of the tuck-in needle/yaft 30, the weft ends stretched between the weft end holder 2 and the weaving selveles (not shown) are captured and drawn into the warp shedding.

According to the above embodiment structure, the pile texture signal Q I of the pattern signal Q1 from the pattern foot roll device
When + is manually operated, the electromagnetic actuators 4 and 5 are activated in the next weaving cycle after the pile forming weaving cycle.
Actuation signals Q and lQ5 are outputted to each of them, thereby operating the tuck-in selvage assembly device while maintaining the required timing with the loom main shaft, and in addition to outputting inactivation signals Q and lQ5 to the electromagnetic actuator 4.5 during weaving cycles other than pile formation. ,Q
.

is output, and the tuck-in ear assembly device is put on standby. In addition, the butter 7 signal Q1 from the pattern control device
When the non-pile tissue signal Q l 2 is manually operated, the electromagnetic actuator 15 receives the actuation signal Q 3 . Q, and thereby operate the tuck-in selvedge device ti in the weaving cycle fij while maintaining the required timing with the main shaft of the loom.

Note that the present invention is not limited to the embodiment No. 1111, and illustrations may be omitted, or the weft end gripper may be mechanical, or the tuck-in selvedge product may be air-type.

Effects of the Invention As described above, according to the present invention, the cutter, the weft end gripping 2g, and the tuck-in parts are controlled by the operation instruction device that outputs an activation/inactivation signal to the electromagnetic actuator based on the pattern signal and the rotation angle signal. At least one of the tuck-in selvedge functional parts can be driven separately from the other tuck-in selvedge functional parts, so when changing the type of weft, the operation instruction device needs only 1 u magnetic actuator to be driven. Since it is only necessary to electrically adjust the output timing knob of the activation/inactivation signal, the operation timing knob of the tuck-4-f functional component can be easily adjusted.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, and FIG. 2 is a tuck-in ear according to the same embodiment. (2) A mechanical front view showing the device; FIG. 3 is a mechanical side view showing the tuck-in ear assembly device in the same embodiment. 1 cutter, 2 weft end gripper, 3 tuck-in needle (tuck-in parts), 4, 5 electromagnetic actuator, 6...operation instruction device, A tuck-in ear, t11
Device, Q, pattern signal, Q, rotation angle signal. 1st generation of drawings (no changes to the interior) Katta, to Riitomasa:;'Sita no Kui/Ni 1;', 11. (N1jimi・″”
Hand J, -Tataru Finger-:, Device, Son-/(1 palm rotation f・111 signal・1, N Yu(]」r-jlVi1 piece A/71″′: Product

Claims (1)

[Claims] (1) A cutter that cuts the beaten weft, a weft end gripper that holds the cut weft end, and a tuck-in component that tucks the held weft end into the warp shedding; An electromagnetic actuator that separately drives at least one of the tuck-in selvedge functional parts consisting of a weft end gripper and tuck-in parts from other tuck-in selvedge functional parts, a pattern signal from a pattern control device of the loom, and a loom main shaft. A tuck-in selvedge assembly device for a shuttleless loom, comprising: an operation instruction device that receives a rotation angle signal from an encoder and outputs an activation/inactivation signal to the electromagnetic actuator.