JPH0619578Y2 - Warp shedding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a warp shedding device in a jacquard machine.

[Prior Art] As a warp shedding device, a device is known in which a horizontal needle is selectively moved depending on the presence or absence of perforation in a pattern paper, and a vertical needle that intersects with a stationary horizontal needle is hung on a knife to be raised. . However, this device has a problem that a large amount of pattern paper is required for weaving a high-quality woven fabric, and that it needs to be installed at a high position in order to keep the inclination angle of threading small when weaving a wide woven fabric. .

On the other hand, as disclosed in Japanese Examined Patent Publication No. S60-36493 and the like, it is disclosed in Japanese Unexamined Utility Model Publication No. S62-36082 and the like, which has an opening structure for regulating the lateral needles based on a woven pattern signal without using a pattern paper. As described above, an opening structure that directly controls the vertical needle based on the woven pattern signal without using a pattern paper or a horizontal needle has been proposed, but generally the structure is complicated, and there is a problem in stability and reliability. Was to leave.

[Problems to be solved by the invention]

The purpose of the present invention is simple structure, excellent stability and reliability,
Another object is to provide a warp shedding device that can be installed at a low position.

[Technical means for solving problems]

The above object can be achieved by the present invention. That is, the warp yarn shedding device according to the present invention includes (a) a vertical needle that is provided with an engaging portion at the upper end and is capable of moving up and down in conjunction with each warp yarn
(b) Elevating body provided on the base so as to be able to ascend and descend above the vertical needle,
(c) An engaged portion is provided at the lower end, and the engaged portion is swingable between an engaging position where it is connected to the engaging portion of the vertical needle and a non-engaging position where it is not connected to each vertical needle. Correspondingly, the oscillating body provided on the lifting body, (d) the electromagnetic coil provided on each oscillating body and selectively excited in accordance with the texture signal, (e) the oscillating body of each oscillating body by the opposing different magnetic poles. It is provided on the lifting body so as to sandwich the moving part, and each swinging body is selectively attracted to one magnetic pole in accordance with the cloth pattern signal and is swung in one direction to selectively move to the engaging position or the non-engaging position. The permanent magnet to be arranged in (1), (f) a lifting device that drives the lifting body, and (G) a signal generator that applies a textile pattern signal to the electromagnetic coil. It is characterized in that the vertical needle connected to the moving body is selectively moved up and down by the lifting body.

As the engaging portion of the vertical needle and the engaged portion of the oscillating body, one composed of one and the other of the inverted U-shaped hook and the annular hook that can be connected to each other can be suitably adopted.

In the above warp shedding device, the lifting device may be configured to drive the lifting body by a power source different from the power source of the loom and to synchronize the weaving motion of the loom with the lifting motion of the lifting body. For example, the descending speed of the lifting / lowering body can be slower than the ascending speed, or can be set to a slight speed just before the stop.

[Action]

In the above structure, when a predetermined pattern signal is input to each electromagnetic coil from the signal generator, each electromagnetic coil is selectively excited and each oscillator is selectively magnetized, so that each permanent magnet causes each oscillation. The moving body is selectively attracted to one of the magnetic poles according to the weave pattern signal, and is selectively swung to the engagement position or the non-engagement position.

Subsequently, when the lifting / lowering body is lifted up to a predetermined position by the lifting / lowering device, all the rocking bodies are lifted up integrally with the electromagnetic coil, the permanent magnet and the like. In that case, the vertical needle corresponding to the rocking body in the engaging position is connected to the rocking body and rises together, and the vertical needle corresponding to the rocking body in the non-engaging position is left unconnected to the rocking body. Therefore, each vertical needle is selectively raised in response to the weave pattern signal and the warp is selectively opened.

Finally, when it is lowered to its original position by the lifting device for the lifted lifting body, all the swinging bodies are lowered integrally with the electromagnetic coil, the permanent magnets, etc. Return to position.

If the lifting device is driven by a power source different from the power source of the loom of the lifting body and the weaving motion of the loom is synchronized with the lifting motion of the lifting body, the opening and closing speed of the warp can be freely controlled. can do. In that case, if the descending speed of the lifting / lowering body is made slower than the ascending speed, or if the descending speed of the lifting / lowering body is set to a slight speed just before the stop, heddle and swaying of the thread can be prevented.

[Embodiment 1] FIG. 1 is a front view of a main portion of an embodiment of the present invention.

In the figure, the vertical needle (1) can be raised and lowered at equal intervals in the transverse direction and the front-rear direction (direction perpendicular to the plane of the drawing) corresponding to each warp (not shown) in the loom (2). An inverted U-shaped hook (3) as an engaging portion is provided on the upper end of each vertical needle (1).

The elevating body (4) is provided above the vertical needle (1) by being screwed into a ball screw screw (6) vertically supported by the base (5), and the elevating drive motor transmission (7) is provided. It is provided at the lower end of the ball screw (6). The ball screw (6) and the elevation drive motor transmission (7) cooperate to form an elevation device.

A rocking hook needle (8) as a rocking body corresponds to each vertical needle (1) at equal intervals in the lateral direction and the front-rear direction (direction perpendicular to the plane of the drawing), and pivots the front-rear direction pivot shaft (9). The intermediate part is supported by the lifting body (4) so as to be swingable in the vertical plane. Each swing hook needle (8) has an annular hook (10) as an engaged portion at the lower end, and an electromagnetic coil (1) at the upper portion.
1) is wrapped around. For convenience, the drawing shows the vertical needle (1) and the swing hook needle (8) located in the front row.

At the time of weaving, a signal generating device (12) sequentially outputs a weave pattern signal for instructing the opening of each warp and is input to each electromagnetic coil (11).

Further, a permanent magnet (13) is provided on the lifting body (4) so as to sandwich the upper end of each rocking hook needle (8) by the opposing S and N poles. Each rocking hook needle (8) has its annular hook (1) when its upper end is attracted to the south pole.
0) is swung so that it is located at a position away from the inverted U-shaped hook (3) of the corresponding vertical needle (1), that is, at the disengagement position (P), while its upper end is reversed to N. When being attracted to the pole, the annular hook (10) is arranged at a position connectable with the inverted U-shaped hook (3) of the corresponding vertical needle (1), that is, at the engaging position (Q). Rock to.

In the above structure, when a predetermined weave pattern signal is input to each electromagnetic coil (11), each electromagnetic coil (11) is selectively excited, so that each permanent magnet (13) causes each rocking hook needle (8). Of the swing hook needle (8) is selectively swung to the disengagement position (P) or the engagement position (Q) while the upper end of the swing hook is selectively attracted to the S pole or the N pole according to the cloth pattern signal. Let

Then, when the lifting / lowering body (4) is lifted to a predetermined position, all the swing hook needles (8) are lifted together with the electromagnetic coil (11), the permanent magnet (13) and the like. In that case, the vertical needle (1) corresponding to the rocking hook needle (8) in the engaging position (Q) is connected to the rocking hook needle (8) and ascends together.
Further, the vertical needle (1) corresponding to the swinging hook needle (8) in the non-engagement position (P) is not connected to the swinging hook needle (8) and is left in the original position, so that the vertical pattern (1) is responsive to the pattern signal. As a result, each vertical needle (1) is selectively raised and the warp threads are selectively opened.

Finally, when the lifted elevator body (4) is lowered to its original position, all the swing hook needles (8) are moved to the electromagnetic coil (11).
Also, the vertical needle (1) that is integrally lowered with the permanent magnet (13) and the like and is connected to the swinging hook needle (8) also returns to the original position at the same time, and the opening operation as described above starts again. It becomes possible.

[Embodiment 2] FIG. 2 is a front view of a main portion of another embodiment of the present invention. In the figure, a long vertical needle (101) and a short vertical needle (201)
Are alternately arranged in the front-rear direction (direction perpendicular to the paper surface), and the long swing hook needle (108) has a short vertical needle (201).
In addition, the short rocking hook needle (208) has a long vertical needle (101).
And the other configurations are similar to those of the first embodiment. Note that, for convenience, the drawings show long and short vertical needles (101), (20) located in the front and rear rows and the front and rear rows.
1) and long and short rocking hook needles (108), (208) are shown.

In this embodiment, the connection between the inverted U-shaped hook (103) of the long vertical needle (101) and the annular hook (210) of the short rocking hook needle (208) and the inverted U-shaped of the short vertical needle (201). The connecting portion between the circular hook (203) and the annular hook (110) of the long rocking hook needle (108) is arranged in upper and lower two stages,
Since they are not arranged adjacent to each other at the same height in the front-rear direction, the long and short vertical needles (101) and (201) and the long and short swing hook needles (108) and (208) can be easily arranged closely.

[Effect of device]

As described above, the warp shedding device according to the present invention has a simple structure, is excellent in stability and reliability, does not require a horizontal needle, and can freely arrange the vertical needle according to the type and width of the fabric. According to the free arrangement of the vertical needles, it is possible to arrange the threading in a substantially vertical state, and the device itself can be installed at a low position. It is possible to easily move or increase the number of blocks into a block, and it is possible to flexibly deal with changes in the type and width of the fabric.

Further, in a structure in which the lifting body is driven by a power source different from the power source of the loom and the weaving motion of the loom is synchronized with the lifting motion of the lifting body, the opening and closing speeds of the warp threads are freely controlled. As a result, it is possible to support weaving of complicated and diverse fabrics. Further, a structure in which the descending speed of the lifting body is made slower than the ascending speed, or the descending speed of the lifting body is set to a slight speed just before the stop is a fabric which has a good texture while preventing the heddle and the thread from swaying. Enables weaving.

[Brief description of drawings]

FIG. 1 is a front view of an essential part of an embodiment of the present invention, and FIG. 2 is a front view of an essential part of another embodiment of the present invention. <Explanation of main symbols> 1 ... Vertical needle, 2 ... Loom, 3 ... Inverted U-shaped hook (engagement part), 4 ... Elevating body, 5 ... Base, 6 ... Ball screw screw ( Lifting device), 7 ... Lifting drive motor transmission (lifting device), 8 ... Rocking hook needle (rocking body), 9 ...
Axis, 10 ... Annular hook (non-engagement part), 11 ... Electromagnetic coil, 12 ... Signal generator, 13 ... Permanent magnet, P
…… Non-engagement position, Q …… Engagement position

Claims (4)

[Scope of utility model registration request] 1. A vertical needle having: (a) an engaging portion at an upper end thereof so as to be able to move up and down in conjunction with each warp; (b) an elevating body provided on a base so as to be able to move up and down above the vertical needle. , (C) An engaged portion is provided at the lower end, and the engaged portion is swingable between an engaged position where it is connected to the engaging portion of the vertical needle and a non-engaged position where it is not connected to each vertical needle. Corresponding to the rocking body provided on the lifting body, (d) an electromagnetic coil provided on each rocking body and selectively excited according to the texture signal, (e) a different magnetic pole of each rocking body facing each other. It is provided on the lifting body so as to sandwich the rocking part, and each rocking body is selectively attracted to one of the magnetic poles according to the cloth pattern signal and is rocked in one direction to select the engaging position or the non-engaging position. The permanent magnets are arranged in a uniform manner, (f) a lifting device that drives the lifting body, and (G) a signal generator that applies a textile pattern signal to the electromagnetic coil, and is arranged at the engagement position according to the textile pattern signal. Shaking Warp shedding device, characterized in that the Tatehari coupled with the body so as to selectively lift control by the lift. 2. The warp shedding device according to claim 1, wherein the lifting device drives the lifting body by a power source different from the power source of the loom and synchronizes the weaving movement of the loom with the lifting movement of the lifting body. 3. The warp shedding device according to claim 2, wherein the descending speed of the lifting body is slower than the ascending speed. 4. The warp shedding device according to claim 2, wherein the descending speed of the elevating body is set to a slight speed on the verge of stopping.