JPH0638130Y2 - Equipment for weaving functional parts of loom - Google Patents

Description

TECHNICAL FIELD The present invention relates to a weaving functional component attaching device for a loom, and more particularly to improving weaving functional component exchangeability.

2. Description of the Related Art A shedding device of a loom passes warp threads stretched between a back roller and a breast roller through a heald mail one by one, and a heald frame with this heald attached is tapped,
The warp yarns are vertically moved by an opening drive mechanism such as a crank or a dobby machine to separate the warp yarns into upper warp yarns and lower warp yarns according to the fabric structure before weft insertion.

The repulsion device of the loom is such that the reed is driven back and forth by a repulsion drive mechanism to press the weft yarns inserted in the warp shed openings into the front of the weave, thereby completing the intersection of the warp yarns and the weft yarns.

However, when weaving the loom, in order to save labor,
For example, as shown in JP-A-62-184149,
The warp drawn from the yarn beam around which the warp is wound during the preparatory work (hereinafter simply referred to as the fully wound yarn beam) is sequentially passed through the weaving functional parts such as the warp dropper, the heald, and the lead, and the preparatory work is completed. A replacement system has been considered in which a fully wound yarn beam and a weaving functional component are automatically mounted on a loom.

Problems to be solved by the invention Since the leads and the healds as the weaving functional parts are fixedly attached to the output part of the beating drive mechanism and the shedding drive mechanism, it is possible to change the woven fabric width depending on the weaving demand, When weaving with the automatic exchange system, the work of replacing the weaving functional parts is troublesome.

Means for Solving the Problems A groove provided in a weaving functional component mounting portion of a loom, a wedge movably housed in the groove between a weaving functional component holding position and a weaving functional component releasing position, and the weaving functional component. And a drive means provided by a fluid pressure for moving the wedge to the holding position of the weaving functional component provided in the mounting portion.

Action To attach the weaving functional component to the loom, move the weaving functional component and insert it between the wedge at the weaving functional component releasing position and the groove wall surface facing it, and then drive the wedge to the weaving functional component. The weaving functional component is clamped between the wedge and the groove wall surface by moving to the clamping position.

On the other hand, in order to remove the weaving functional component from the loom, the sandwiching of the weaving functional component by the wedge and the groove wall surface is released, and the weaving functional component is separated from between the wedge and the groove wall surface.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

First Embodiment In this first embodiment, as shown in FIGS. 1 and 2, a lead attaching device is shown as a weaving functional component attaching device. In the figure, reference numeral 1 is a lead as a weaving functional component, and a large number of reed blades 3 are arranged on a lead frame 2 having a square shape in the left-right direction (the same as the weft extending direction) so as to be installed vertically. . Reference numeral 4 denotes a lead holder that constitutes a weaving functional component mounting portion of the fiber, and is attached to the thread 19 as an output portion of the beating driving mechanism. This lead holder 4 is shown by arrows X ₁ , X in FIG. 1 during the weaving operation of the loom.
_As shown in ₂ , it moves back and forth at the required timing. The lead holder 4 is provided with a groove 5 that is open upward and is horizontally long in the left-right direction. The front wall surface 5a of the groove 5 is a substantially vertical surface, and the upper half of the rear wall surface of the groove 5 is an inclined surface 5b in which the groove width in the front-rear direction of the groove 5 is tapered upward. A wedge 6 is stored in the groove 5 so as to be vertically movable between a lead holding position and a lead releasing position. Front wall of wedge 6
6a is a substantially vertical surface, and thereafter the wall surface is an inclined surface 6b in which the front-rear width of the wedge 6 tapers upward. The inclined surface 6b has substantially the same inclination angle as the inclined surface 5b of the groove 5. On the other hand, 10 is a drive means for moving the wedge 6 up and down.
The drive means 10 is located below the wedge 6 in the groove 5 and is a working fluid chamber.
A hollow tube 12 that separates 11 is provided. An air pump 14 as a pressurized fluid source is connected to an intake / exhaust port 13 communicating with the working fluid chamber 11 of the tube 12 via a pressure regulator 15, a directional control valve 16, a check valve 17, and a pressure switch 18, respectively. . The directional control valve 16 is opened by a control signal Q ₁ from the controller shown in the figure to supply pressurized air as pressurized fluid from the air pump 14 to the working fluid chamber 11, and the directional control valve 16 is actuated from the air pump 14 to the working fluid chamber 11. The electromagnetically driven self-reset type has an open position for shutting off the flow of compressed air and discharging the pressurized air in the working fluid chamber (11) to the atmosphere.
The check valve 17 normally includes the air pump 14 to the working fluid chamber 11
Pilot type that allows the flow of pressurized air to and blocks the reverse flow, and operates the pilot pressure by a control signal Q ₂ from a controller (not shown) to enable the reverse flow. It has become. The pressure switch 18 outputs a pressure signal K ₁ to a controller (not shown) when the pressure in the working fluid chamber 11 falls below a required reference pressure value while the lead 1 is held between the front wall surface 5a and the wedge 6. It is a thing.

According to the structure of the first embodiment described above, when the lead 1 is attached to the lead holder 4, the tube 12 contracts and the inclined surface 6b of the wedge 6 moves from the inclined surface 5b of the groove 5 as shown in FIG. The lead 1 is moved downward from above the lead holder 4 in a state where the wedge 6 is located at the lead release position while being separated downward, and the lower part of the lead frame 2 is divided into the front wall surface 5a of the groove 5 and the front wall surface 6a of the wedge 6. It is inserted and arranged in between and landed on the bottom surface of the groove 5. In this state, as shown in FIG. 2, the directional control valve
Set 16 to valve open position. Then, the air pump 14
Pressurized air is supplied to the working fluid chamber 11 from the tube 12
Expands, the wedge 6 moves upward to the lead holding position, and its inclined surface
6b slides on the rear wall surface 5b, and the lower portion of the lead frame 2 of the lead 1 is firmly coupled to the lead holder 4 by the front wall surface 6a of the wedge 6 and the front wall surface 5a of the groove 5 by the wedge effect as a reaction force. It When the clamping pressure becomes equal to or lower than the required reference pressure value in the clamped state of the lead 1, a pressure signal K ₁ from the pressure switch 18 is output to a controller (not shown) to monitor the pressure.

When removing the lead 1 from the lead holder 4,
As shown in the figure, the directional control valve 16 is set to the open position and the check valve 17 is set to a state in which backflow is possible. Then, the pressurized air in the working fluid chamber 11 is exhausted to the atmosphere, the tube 12 contracts, and the clamping force of the lead 1 by 6 is released. Therefore, the lead 1 is moved upward to move the wedge 6
And the front wall surface 5a.

Second Embodiment As shown in FIGS. 3 and 4, in the groove 5A provided in the lead holder 4A, two wedges 6A and 6B which are separated from each other are vertically arranged and stored in the groove 5A. A tube 12 is disposed between the body wedges 6A and 6B to define a working fluid chamber 11.
At the intake / exhaust port 13 communicating with the working fluid chamber 11 of the tube 12, the air pump 14 is provided with the pressure regulator 1 as in the first embodiment.
5, the directional control valve 16, the check valve 17, and the pressure switch 18 are connected.

Here, the structure of the groove 5A and the wedges 6A and 6B will be specifically described.
The upper half of the rear wall surface of the groove 5A is an inclined surface 5b in which the front-rear width of the groove 5A tapers upward as in the first embodiment, and the lower half of the rear wall has the front-rear width of the groove 5A. It has an inclined surface 5c that tapers downward. The upper wedge 6A of the two wedges 6A, 6B is arranged so that the front-rear width of the wedge 6A tapers upward as in the first embodiment, and the lower wedge 6B is the wedge 6B.
Are arranged so that the front-rear width thereof is tapered downward.

Therefore, according to this second embodiment, the upper and lower wedges 6A, 6
B is a lead sandwiching position in directions opposite to each other in accordance with the expansion and contraction operations of the tube 12 due to the intake and exhaust of pressurized air from the air pump 14 to the working fluid chamber 11 by the direction control valve 16 and the check valve 17. It moves up and down to the lead release position, and the lower part of the lead frame 2 of the lead 1 is moved to the front wall surface 5a of the groove 5A and the wedge 6
It is clamped and released with the front wall surface 6a of A and 6B. In particular, when the lead 1 is clamped by the wedges 6A and 6B, arrows Y ₁ and Y _{2 are} shown in FIG.
As shown by, since the sandwiching forces in the directions opposite to each other act vertically, the lower portion of the lead frame 2 is joined to the sill without lifting from the bottom surface of the groove 5A.

Third Embodiment In this third embodiment, as shown in FIGS. 5 and 6, a heald attaching device is shown as a weaving functional component attaching device. In the figure, 30 is a heald frame as a weaving functional component formed in a square shape, and a large number of healds 31 having e-mails not shown in the figure are vertically arranged with a required space in the left and right. There is. Heald frame
An attachment 32 is attached to the lower part of 30 via a hinge 33 so as to be rotatable in the left-right direction. The right wall surface of the lower part of the attachment 32 is an inclined surface 32a in which the lateral width of the attachment 32 tapers downward. Attachment 32
The lower left wall surface 32b is provided with a convex portion 39 protruding leftward. On the other hand, reference numeral 34 is a heald mounting portion which constitutes a weaving functional component mounting portion of the loom, and is embodied as an output member of the shedding drive mechanism. The heald mounting portion 34 is configured to move up and down at a required timing in the directions indicated by arrows Z ₁ and Z ₂ in FIG. 5 during operation of the loom. A substantially U-shaped groove 35 that opens upward is formed in the upper half of the heald mounting portion 34. Groove 35
A heald sensor 40 for detecting the presence or absence of the attachment 32 is provided above the substantially vertical right wall surface 35a. At the upper part of the substantially vertical left wall surface 35b of the groove 35, the protrusion 39 of the attachment 32 is provided.
And a small-diameter recess 42 located at the center of the bottom surface of the recess 41. The small-diameter recess 42 is provided with a positive return 43 that slidably contacts the protruding end surface (left side surface) of the projection 39 of the attachment 32 inserted into the groove 35 and biases the attachment 32 to the right. Wedge in groove 35
The 36 is arranged so as to be movable up and down in a held position and a released position. The right wall surface 36a of the wedge 36 is the right wall surface 35a of the groove 35.
It is a substantially vertical surface that slides on. The left wall surface of the wedge 36 is an inclined surface 36b having substantially the same inclination angle as the inclined surface 32a of the attachment 32. A pressure sensor 44 such as a load cell is embedded in this inclined surface 36b. The pressure sensor 44 outputs a pressure signal K ₂ as a quantity of electricity according to the holding pressure of the attachment 32 by the left wall surface 35b of the groove 35 and the wedge 36 to a controller (not shown). The cylinder 12A of the operating mechanism 10A is attached to the lower half of the heald mounting portion 34. The working rod end of the cylinder 12A is connected to the lower portion of the wedge 36. The outlet of the air pump 14 is connected to the head port of the cylinder 12A. A pressure regulator 15A is provided in a pipe line 46 that connects the head port of the cylinder 12A and the outlet of a pump 14A that constitutes a pressurized fluid source. A reservoir tank 45 is connected to the bottom port of the cylinder 12A. Bottom port of cylinder 12A and reservoir tank 45
A directional control valve 16A is provided across a pipe line 47 connecting the line and a portion of the pipe line 46 between the pressure regulator 15A and the cylinder 12A. The directional control valve 16A is driven from the air pump 14 to the cylinder 1 by control signals Q ₃ and Q ₄ from a controller (not shown).
The forward position where the pressurized fluid is supplied to the head port of 2A and the pressurized fluid is discharged from the bottom port of the cylinder 12A to the reservoir tank 45, and the pressurized fluid is supplied from the air pump 14 to the bottom port of the cylinder 12A. It is of an electromagnetically driven self-resetting type having a reverse position for discharging the pressurized fluid from the 12A head port to the reservoir tank 45 and a valve closing position for blocking the flow of the pressurized fluid.

Therefore, according to the third embodiment, when the heald frame 30 including the heald 31 is attached to the heald mounting portion 34, the cylinder 12A is contracted to drive the wedge 3 as shown in FIG.
When the heald frame 30 is moved downward from above the heald mounting portion 34 and the attachment 32 is inserted into the groove 35 in a state where 6 is lowered to the heald release position, the positive return 43 slides on the convex portion 39. Contact, attachment 32 hinges
While rotating to the right around 33, the heald sensor 40 detects the presence of the attachment 32 and outputs a "held detection signal K ₂ " to a controller (not shown). Then, as shown in FIG. 6, the directional control valve 16A is set to the reverse position by the control signal Q ₃ from the controller, the working fluid is supplied from the pump 14A to the bottom port of the cylinder 12A, and the wedge
36 moves up to the heald holding position, the inclined surface 36b of the wedge 36 contacts the inclined surface 32a of the attachment 32, and the attachment 3
2 rotates leftward around the hinge 33 while compressing the positive return 43, the convex portion 39 is inscribed in the concave portion 41 of the heald mounting portion 34, and the left wall surface 32b of the attachment 32 is in the groove 35. Touch the left wall 35b of the attachment 32
Is sandwiched between the inclined surface 36b of the wedge 36 and the left wall surface 35b of the groove 35, so that the heald frame 30 including the heald 31 is attached to the heald mounting portion 34.
Is firmly attached to.

When removing the heald frame 30 including the healds 31 from the heald mounting portion 34, as shown in FIG. 5, the directional control valve 16A is set to the forward position by the control signal Q ₄ from the controller (not shown). Then, the cylinder 12A is driven to contract, the wedge 36 moves downward to the heald release position, and its inclined surface 36b
Is separated from the inclined surface 32a of the attachment 32, the attachment 32 is rotated leftward about the hinge 33 by the positive return 43, and the convex portion 39 is arranged in the groove 35 apart from the concave portion 41. Since the holding force of the attachment 32 by the 36 is released, the heald frame 30 including the heald 31 may be moved upward.

As described above, according to the present invention, the weaving functional component can be firmly coupled to the weaving functional component mounting portion by the wedge effect without rattling. In addition, the weaving functional component can be removed from or attached to the weaving functional component mounting portion by moving the wedge to the weaving functional component clamping position and the weaving functional component releasing position. Since the wedges can be moved at the same time and with a uniform pressure even when the wedges are divided and arranged at a plurality of positions and held, the weaving functional parts can be replaced easily and reliably. There is a practical effect such as.

Further, since the holding force of the weaving functional part uses the wedge effect, even if the fluid pressure as the wedge moving means is lowered for some reason, the holding force by the wedge can be temporarily secured, which is a safety effect. Also has.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a wedge of the first embodiment of the present invention is in a weaving functional component releasing position, and FIG. 2 is a state in which the wedge of the first embodiment is in a weaving functional component holding position. Is a vertical sectional view showing
FIG. 3 is a longitudinal sectional view showing a state where the wedge of the second embodiment of the present invention is in the weaving functional component releasing position, and FIG. 4 is a state in which the wedge of the second embodiment is in the weaving functional component releasing position. Is a vertical sectional view showing
FIG. 5 is a longitudinal sectional view showing the wedge of the third embodiment of the present invention in the weaving functional component release position, and FIG. 6 is the state of the wedge of the third embodiment in the weaving functional component clamping position. FIG. 1 ... Lead (weaving functional component), 4 ... Lead holder (weaving functional component mounting part), 5,5A, 35 ... Groove, 6,6A, 36 ...
Wedge, 10,10A ... Drive means, 30 ... Held frame, 34 ...
... Heald mounting part (weaving functional component mounting part).

Claims (1)

[Scope of utility model registration request] 1. A groove provided in a weaving functional component mounting portion of a loom,
By means of a wedge movably housed in the groove between the weaving functional component holding position and the weaving functional component releasing position, and a fluid pressure for moving the wedge to at least the weaving functional component holding position provided in the weaving functional component mounting portion. A weaving functional component mounting device for a loom, which is configured by a driving means.