JPH0524258B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a warp shedding device, which is used in the field of weaving textiles.

(Prior art and its problems) Textiles are woven by repeatedly pulling up the warp threads to open the warp threads and inserting the warp threads into the openings, but the overall mechanism of the loom is complex and large-scale. However, there was an inconvenience that the noise during weaving was extremely loud.

The reason for this is that a jig guard machine is used as a device to selectively pull up and open the warp threads.

In other words, the Jiya Guard machine sequentially guides the pattern paper onto a cylinder surface that swings or reciprocates while rotating intermittently, and causes it to collide with a group of horizontal needles, corresponding to the presence or absence of holes made in the pattern paper. By pushing the horizontal needles, you can select whether the vertical needles linked to each horizontal needle are engaged with the knife that moves up and down or not, and the thread inserted through the mail connected to each vertical needle is selected. It is selectively pulled up to open the warp threads.

This mechanism transmits the signal formed on the pattern paper to the horizontal needles, and then selects the vertical needles to rise.It is a small part that controls hundreds to thousands of warp threads. must be combined vertically and horizontally within a small space, making the control mechanism extremely complex.

In addition, in order to control the warp threads with the warp needles, the jia guard machine must be placed at a height of approximately 2.5 m above the loom, making the loom as a whole large-scale and making it impossible to use the work space effectively.

Furthermore, the noise caused by the rotation of the cylinder, the collision with the horizontal needle group, the rise of the knife, etc., is rhythmic but loud, and when many looms are operated, the noise becomes extremely loud.

(Technical Problem) An object of the present invention is to provide a device for shedding warp threads in which the raising and lowering of the warp threads can be controlled without using a jia guard machine.

(Technical means) The technical means for solving this technical problem are (a) a holding member that has a movable body that moves in the radial direction and is placed outside the shaft body to which the mail is attached, and (b) a holding member that is directly or It consists of a solenoid that indirectly moves the movable member, (c) a lifting means that reciprocates the holding member up and down, and (d) the solenoid is energized to set the position where the movable member presses the shaft body and the position where the movable body presses the shaft body. To selectively switch to .

(Effect of technical means) The holding member arranged outside the shaft body is equipped with a movable body that moves in the radial direction, and when the movable body moves centripetally and presses the shaft body, the shaft body moves towards the holding member. When the movable body moves in the radial direction and follows the shaft, the restriction is released and the shaft and the holding member can move relative to each other.

If this movement of the movable body is carried out by excitation of a solenoid, it is possible to easily and freely select and switch between the movable body pressing the shaft body and the position in which the movable body presses the shaft body using an electric signal. Become.

Therefore, when the holding member is raised or lowered with the above selection made, the shaft body pressed by the movable body moves in the vertical direction together with the holding member, and the shaft body released from the movable body moves the holding member. It stands still regardless of.

Therefore, the warp threads inserted through the mails of the shaft bodies are raised and lowered by controlling the pressing and opening of the movable body against each shaft body, without using a jar guard machine, and the warp threads are opened. .

(Effect of the invention) With the above technical means, a control mechanism is provided on each shaft body to which a mail is attached, without using a jia guard machine for shedding the warp threads, so the device becomes extremely compact, and moreover, the control is controlled by electrical signals. The mechanism can be simplified because it can be carried out with

Furthermore, there is no movement such as rotation of the cylinder, collision with the horizontal needle group, or movement of the knife, and noise can be extremely reduced.

In addition, with the above technical means, the shedding can be controlled for each warp thread, so it has the advantage of being able to weave fine or precise patterns without using mechanisms such as stick blades and folding machines in the Jiya Guard machine. be.

(Embodiment) The embodiment of the above technical means will be described below.

As a holding member that moves the movable body in the radial direction and presses the shaft body, an inner cylinder is inserted into an outer cylinder that has a small diameter part on the inner wall side, and the movable body attached to the inner cylinder is pressed by the small diameter part. A mechanism that moves in the centripetal direction can be adopted.

In this case, the small diameter part of the outer cylinder is configured with a tapered wall,
A corresponding tapered wall and a through hole may be formed at the end of the inner cylinder so that the lock ball inserted into the through hole abuts against the tapered wall of the outer cylinder and moves inward. Alternatively, the end portion of the thick inner cylinder may be cut in the axial direction, the end portion may be urged outward, and the divided thick portion may be moved inward by the small diameter portion.

In any of the embodiments described above, since the axes of the shaft and the holding member coincide, the mechanism for moving the movable body can be extremely simplified.

(Example) Next, an example of the above technical means will be described with reference to the warp shedding device shown in the drawings.

=First embodiment= Fig. 1 is a partially enlarged view of the warp shedding device 1, in which outer cylinders 3 having an outer diameter of about 4.5φ are arranged and fixed in a housing 2, and each outer cylinder 3 are arranged so that their respective axes are perpendicular to the warp threads 10.

The outer cylinder 3 is entirely made of stainless steel, and a solenoid 4 whose rear end can exert a magnetic force is inserted and fixed into its upper half, and an inner cylinder 5 is inserted into its lower half so that it can move forward and backward. Between the solenoid 4 and the inner cylinder 5 is a coil spring 6 made of phosphor bronze.
is used to urge the inner cylinder 5 toward the lower side, and when the solenoid 4 is energized, the inner cylinder 5
It is designed to be drawn to.

The inner wall at the lower end of the outer cylinder 3 and the outer wall at the lower end of the inner cylinder 5 are tapered walls 7 and 8, and a plurality of through holes 9 are bored in the tapered wall of the inner cylinder 5 to form lock balls (steel balls). 11 is charged.

The shaft body 12 is made of a non-magnetic material such as stainless steel or ceramic, and passes through the inside of the inner cylinder 5, the coil 6, and the solenoid 4 so as to move forward and backward, and both ends thereof protrude outward from the outer cylinder 3. There is.

A thread 14 with a mail 13 fixed to the intermediate portion is connected to the lower part of the shaft 12, and the lower end of the thread 14 is attached to a loom (not shown) via a coil spring 15.
The shaft body is connected to the frame 16 of the shaft body to prevent large swings during elevation and to ensure that the warp threads 10 descend reliably when the shaft body descends.

In the state shown in FIG. 1, since the inner cylinder 5 is pressed downward by the spring 6, the lock ball 11 inserted into its tapered wall 8 is pushed by the tapered wall 7 of the outer cylinder. This presses the shaft body 12 passing through the inner cylinder 5, making it impossible to move.

Therefore, when the solenoid 4 corresponding to the warp yarn 10 that is not to be raised is selected and energized by an electric signal applying device (not shown), only the inner cylinder 5 rises and is attracted to the solenoid, and the pressing force against the lock ball 11 is released. The shaft body 12 becomes free (see FIG. 2).

When the casing 2 is raised in this state, the shaft 12, whose movement is restricted, is raised along with the rise of the casing 2, and the warp threads 10 inserted through the mails 13 are raised, leaving the shaft free. The body remains stationary even when the casing 2 is raised, and the warp threads 10 inserted through the mail 13 do not move.

=Second Embodiment= FIG. 3 shows a solenoid 24 in the lower half of the outer cylinder 23.
is inserted and fixed, an inner cylinder 25 is inserted into the upper half so as to be movable back and forth, and the movable body of the inner cylinder 25 is constituted by a divided wall piece 28 formed at its tip.

The divided wall pieces 28 have thick tip portions 29 and are urged outward to expand in the radial direction.

A coil spring 26 is interposed between the solenoid 24 and the inner cylinder 25, and the inner cylinder 25 is biased upward so that the wall piece 28 at the tip thereof is positioned outside the small diameter stepped portion 27 of the outer cylinder 23. and solenoid 24
When the inner cylinder is pulled by energizing, the thick part 29 of the wall piece 28 moves in the centripetal direction by the small diameter stepped part 27, presses the shaft 12 inserted into the inner cylinder 25, and moves it. to regulate.

The movement of the casing (not shown) and the attachment of the mail to the lower part of the shaft are the same as in the first embodiment.

In both the first and second embodiments, in order to convert the force received when the shaft whose movement is restricted hits the horizontal needle into a force that directs the lock ball or wall piece in the centripetal direction, the shaft is Movement control can be performed reliably.

[Brief explanation of the drawing]

The drawings are for explaining an embodiment of the present invention, and FIG. 1 is a side view with a part of the warp shedding device cut away, and FIG. 2 is an enlarged view of the main part with the inner cylinder drawn toward the solenoid. FIG. 3 is an enlarged view of a warp shedding device in another embodiment. 2... Housing, 3, 23... Outer tube, 4, 24...
Solenoid, 5, 25...inner cylinder, 11...lock ball, 12...shaft body, 28...dividing wall piece.

Claims (1)

[Scope of Claims] 1. A holding member having a movable body that moves in the radial direction and disposed on the outside of a shaft body to which a mail is attached, a solenoid that directly or indirectly moves the movable member, and a lifting means that reciprocates the holding member up and down. A warp shedding device comprising: a solenoid which is energized to selectively switch the movable body between a position in which it presses a shaft body and a position in which it opens and scans a shaft body. 2. Claims in which the holding member consists of an outer cylinder with a small diameter part inside and an inner cylinder having a movable body inserted into the outer cylinder so that it can move forward and backward, and the movable body attached to the inner cylinder is pressed by the small diameter part. Apparatus according to paragraph 1. 3. The device according to claim 2, wherein the movable body is a lock ball inserted into a through hole bored in the head wall of the inner cylinder. 4. The device according to claim 2, wherein the movable body is a dividing wall piece that is cut into an end of a thick inner cylinder and urges the end outward.