JPH0621390B2 - Warp opening control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a switching method in which a shaft body is inserted into solenoids which are fixed in parallel in a vertical direction, and the shaft body is biased in a direction of separating from the solenoid and attached to the shaft body. The member is switched to two positions by selective excitation of the solenoid, and the shaft member is held by the switching member at either position or the switching member is locked, and the shaft member that moves up and down and the shaft member that is stationary are selected. The present invention relates to a method for controlling the opening of a warp and is used in the field of weaving a woven fabric.

(Prior art and its problems) A woven fabric is woven by selectively pulling up the warp to open the warp and inserting the weft into the opening. The conventional shedding device uses a jacquard machine for the warp. Since the opening is performed by using the machine, there is a problem that the mechanism of the entire loom is complicated and large-scale, and the noise during weaving becomes extremely large.

In order to eliminate this inconvenience, the applicant has filed Japanese Patent Application No. 60-658.
No. 63 and the patent application dated July 1, 1985, an invention in which the shafts corresponding to the warp are arranged vertically without using the jacquard machine and the warp is opened by controlling the elevation of the shaft. Have already proposed.

In the former application, as shown in FIG. 5 and FIG.
The switching member inserted outside the (43) is composed of a holding member (46) having a movable body that moves in the radial direction, and the holding member (46) is excited by exciting the solenoid (45) fixed in the cylinder (44). 46) to two positions, the lock ball (46b) of the inner cylinder (46a) as a holding member is pressed by the small diameter part (47) of the cylinder wall (44), and the shaft body (43)
(See FIG. 5), or the dividing wall piece (46d) biased to the outside of the inner cylinder (46c) is pressed by the small diameter portion (47) of the cylinder wall (44) and the shaft body (43) Hold (see Fig. 6) and hold the solenoid
(45) is configured to be lifted and lowered so that only the held shaft is lifted and lowered.

Further, in the latter application, as shown in FIG. 7, a spring is interposed between the fixed solenoid (48) and the engagement member (49) as a switching member is fixed to the shaft body (43). Alternatively, the shaft body (43) is configured to move up and down by being mounted in a fitted state and engaging the engaging member that is not magnetically attached to the solenoid (48) with the slide member (50) to raise and lower the slide member. .

However, in these methods of controlling the shaft body, when the shaft body is accurately controlled, the opening device is restricted by the size of the solenoid, which has a disadvantage that the miniaturization of the entire device is hindered.

The reason is that the switching member is biased outward by the spring, so that a solenoid having a large capacity must be used.

That is, the solenoid has a magnetic force by way of example, but since the switching member is located at a position separated by a spring, the magnetic force is used not only for magnetically attracting but also for pulling the one biased by an external force by a spring. Magnetic force is required.

Since the warp opening is performed in a single time, the raising and lowering of the shaft body must be controlled instantaneously, and if the capacity of the solenoid is small, this control becomes inaccurate and eventually the weaving pattern is disturbed.

Therefore, if it is attempted to accurately control the elevation of the shaft body, a large-capacity large solenoid having a magnetic force sufficient to attract the switching member to the solenoid must be used, which limits the miniaturization of the device. Is.

(Technical problem) According to the present invention, a shaft member is inserted into solenoids fixed in parallel in a vertical direction, and a switching member attached to the shaft member by urging in a direction of separating from the solenoid is provided in two positions by selective excitation of the solenoid. In the method for controlling the warp shedding by selecting the shaft body to be lifted and the shaft body to be stationary by causing the switching member to hold the shaft body at either position or locking the switching member at any one position. It is an object of the present invention to reduce the size of the switch and to perform accurate two-position switching of the switching member.

(Technical Means) Technical means for solving this technical problem are as follows: (a) After pressing the switching member to the solenoid side, the solenoid is excited to select the switching member to be magnetized, and (b) the switching is performed thereafter. The position of the switching member is switched to the selection by releasing the pressing force of the member.

(Operation of technical means) When the switching member is pressed toward the solenoid and brought close to or close to the solenoid, when the solenoid is excited, the magnetic force for pulling the separated switching member is unnecessary, and only the magnetic force to be magnetically attached. Should have.

When the pressing force is released, the switching member close to or close to the solenoid that is not excited by the electric signal is returned to the position separated from the solenoid by the biased force, and the switching member is separated from the position magnetically attached to the solenoid. It will be divided into different positions.

Therefore, the power consumption can be reduced and the switching member can be accurately switched between two positions.

(Effects of the Invention) As described above, when the switching member is pre-pressed to excite the solenoid to switch the switching member between two positions, the solenoid does not have to pull the switching member against the biasing force. The solenoid itself can be downsized, which leads to downsizing of the entire solenoid group required for the number of shafts corresponding to the warp threads, and the shedding device can be made more compact.

Moreover, since the switching member is reliably magnetically attached to the solenoid, there is an advantage that the shaft body can be accurately moved up and down, and as a result, the warp can be accurately opened.

Further, there is an advantage that the power consumption can be reduced by reducing the capacity of the solenoid.

Needless to say, the above-mentioned technical means can be applied to traveling when the engaging member is used as the switching member and when the holding member is used as the switching member.

(Example) Next, an example of an apparatus that implements the above technical means will be described with reference to the drawings.

= First Example = The first example is a warp shedding device when an engaging member is used as a switching member.

1 to 3 show a schematic front view of the device, in which the crown is arranged at the lower end of the shaft body (1) arranged in the longitudinal direction.
The thread (3) is hung through (2), and the thread (3)
The mail (6), through which the warp (5) has been inserted through the (4), is fixed and the arrow wire (7) is hung at the lower end.

Shafts (1) should be placed side by side above the eye plate (4) to frame (11).
It penetrates through the solenoid (12) fixed to, and its tip portion projects above the solenoid (12).

A disc (13) as a stopper is fixed to the tip of the shaft (1), and the outer diameter of the disc (13) is abbreviated as the outer diameter of the solenoid (12) inside the groove (15). ) Is formed between the engaging cylinder (14) and the solenoid (12), and the coil spring (1
It is inserted through 6).

Above the engagement cylinder (14), a pressing plate (25) is arranged,
A protrusion (26) is provided on the lower surface of the pressing plate (25) at a position directly above each shaft body (1), and when the pressing plate (25) is lowered, the protrusion (26) is formed.
The (26) presses the top of the engagement cylinder (14) to bring it into close contact with the solenoid (12).

Above the solenoid (12), an elevating plate (17) having a hole (18) corresponding to each engagement cylinder (14) and having a larger outer diameter is arranged. The elevating plate (17) is connected to the above-mentioned pressing plate (25) and can be moved up and down by a driving means (not shown).

A slide plate (21) having holes (22) of the same diameter concentric with the hole (18) is arranged on the lift plate (17).
The drive means (not shown) slides left and right in synchronization with the vertical movement of the lift plate (17).

As shown in FIG. 3, the hole (22) of the slide plate (21) has a bulging arc (23) at its peripheral portion, and when the slide plate moves, this bulging arc (23). ) Enters into the concave groove (15) of the engagement cylinder (14).

In the apparatus having the above-mentioned structure, first, the pressing plate (25) is lowered to press the engagement cylinder (14) with the protrusion (26), and the engagement cylinder is moved to the solenoid.
Close to (12). At this time, the lift plate (17) and the slide plate (21) also descend simultaneously.

Therefore, when the solenoid (12) is selectively excited by an electric signal applying device (not shown), the excited solenoid (12) magnetically attaches the engagement cylinder (14) in close contact with the solenoid (12).

Next, when the pressing plate (25) and the elevating plate (17) are raised, the magnetically engaged engagement cylinders remain stationary, and the other engagement cylinders ascend together with these plates due to the urging force of the spring (16).

When the slide plate (21) is moved when the slide plate (21) is released from the stationary engagement cylinder, the bulging arc (23) is
It enters into the concave groove (15) of the engaging cylinder located above (17). If the lift plate (17) is raised in this state (the energization of the solenoid should be stopped at this stage), the concave groove (15) of the engagement cylinder
Only the shaft body (1) locked by the slide plate (21) rises and the other shaft bodies cannot be pulled up, so that the warp yarns (5) correspond to this and the warp yarns are opened.

In this embodiment, the engagement cylinder is prevented from coming off and is inserted into the shaft body, but the engagement cylinder may be fixed to the tip portion of the shaft body.

Further, although the projection (26) presses the top of the shaft body (1), the top of the engagement cylinder (14) may be pressed by using a cylindrical projection. In this case, when the shaft body (1) is pressed, it does not descend once.

= Second Embodiment = A second embodiment shows a warp shedding device using a holding member as a switching member.

FIG. 4 is an enlarged cross-sectional view of a portion for controlling the lifting and lowering of the shaft body. The casing (32) has an outer cylinder (33) arranged and fixed, and the solenoid (34) is provided in the upper half of the outer cylinder. Is accommodated and fixed, the inner cylinder (35) is inserted in the lower half so as to be able to move forward and backward, and the shaft body (31) for raising and lowering the warp yarn is vertically passed through the center of the solenoid and the inner cylinder.

A coil spring as an urging means is interposed between the solenoid (34) and the inner cylinder (35) to urge the inner cylinder (35) downward.

The inner wall of the lower end of the outer cylinder (33) and the outer wall of the lower end of the inner cylinder (35) are tapered walls (36) (37), and a plurality of through holes (38) are formed in the tapered wall of the inner cylinder. The lock ball (39) is installed and installed, and when the tapered walls come into contact with each other, the lock ball shifts to a spherical center and presses the shaft body (31).

A pressing plate (41) is arranged and fixed below the housing (32),
A cylindrical projection (42) is provided on the upper surface of the pressing plate (41), and the cylindrical projection (42) enters the outer cylinder (32) and enters the inner cylinder at the bottom dead center of the housing (32). The lower end of (35) is pressed.

At the bottom dead center of the casing (32), the inner cylinder (35) is pressed toward the solenoid (34) and is in contact therewith. Then, when the solenoid (34) is selectively excited, the shaft body of the inner cylinder lock ball (39) is
The inner cylinder (35) is magnetically attached to the solenoid with the pressing force on (31) released.

Next, when the casing (32) is raised, the inner cylinder magnetically attached to the solenoid (34) rises while releasing the pressing force on the shaft body (31), and the inner cylinder not magnetically attached to the solenoid (34) is changed to the casing. As the body (32) rises, the urging force of the spring acts to press the inner cylinder against the lower end of the outer cylinder (33).

At this time, the lock ball shifts into a spherical shape and presses the shaft body (31) to hold it, and the shaft body (31) rises together with the housing (32) to pull up the warp.

In the first and second embodiments, the material of the protrusions provided on the pressing plate may be rubber, metal, plastic, or the like, but these protrusions may be attached to the pressing plate with a spring interposed. In this case, the pressing force of the spring needs to be larger than that of the spring interposed between the solenoid and the engagement member or the inner cylinder.

Further, in the above embodiment, the coil spring is interposed between the solenoid and the engagement cylinder and the inner cylinder as a means for separating and opening the solenoid, but this position is the engagement when the contracting force of the coil spring is used. It may be arranged on the opposite side of the cylinder and the inner cylinder, and further, the blade or other biasing means may be positioned outside the engagement cylinder and the inner cylinder.

[Brief description of drawings]

The drawings are for explaining the embodiments of the present invention. FIG. 1 is a schematic front view of a warp shedding device, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is a plane of holes of a slide plate. FIG. 4 and FIG. 4 are front views in which a part of a shaft body control portion in another embodiment is cut away.
FIG. 5, FIG. 6 and FIG. 7 are explanatory views of the prior art. (1) (31) Shaft, (5) Warp, (12) (34) Solenoid, (14) Engaging cylinder, (15) Groove, (16) Spring, (21) Slide plate, (22) Hole ,
(23) bulging arc, (25) (41) pressing plate, (26) (42) protrusion (32) outer cylinder, (35) inner cylinder, (39) lock ball,

Claims (1)

[Claims] 1. A shaft member is inserted through solenoids fixed in parallel in a vertical direction, and a switching member attached to the shaft member by urging in a direction of separating from the solenoid is switched to two positions by selective excitation of the solenoid, In the method of controlling the warp shedding by selecting the shaft body that moves up and down and the shaft body that is stationary by holding the shaft body on the switching member at one of the positions or by locking the switching member, a solenoid is used for the switching member. A warp yarn opening control method in which a solenoid is excited and then a solenoid is excited to select a switching member that is magnetically attached to the solenoid, and then the pressing force of the switching member is released to switch the position of the switching member to the selected position.