JP2513345Y2 - Jacquard machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a jacquard loom.

(Prior Art) As a direct weaving machine having a function of weaving a pattern or a pattern, for example, a jacquard machine shown in Japanese Patent Publication No. 64-11733 is known.

As shown in FIG. 3, this has a large number of vertical needles 6 whose upper ends are bent like hooks, and the same number of knives 20 that engage with the bent portions 6A and pull up the vertical needles 6. A thread 7 is connected to the lower end of the vertical needle 6, and a knife 20 pulls up the vertical needle 6 to pull up the thread 7.

Corresponding to the vertical needles 6, the same number of horizontal needles 21 are arranged below the knife 20 in the horizontal direction so as to be orthogonal to the vertical needles 6. A bent portion called a teng 22 is formed at the intersection of the horizontal needle 21 and the corresponding vertical needle 6, and when the horizontal needle 21 moves in the horizontal direction, the teng 22 drives the corresponding vertical needle 6 in the horizontal direction. , 4th
As shown in (b) of the figure, the bending portion 6A of the vertical needle 6 is displaced laterally from the position of engagement with the knife 20.

The knife 20 is supported inside a knife box (not shown),
When the bending portion 6A is displaced laterally from the engagement position with the knife 20 at this time, the vertical needle 6
Is left in the same position as shown in FIG. 5 (b), and other vertical needles 6 as shown in (a) and (c).
Only the thread is pulled up and the thread 7 connected to the lower end is pulled up.

The horizontal needle 21 is selectively driven by the horizontal needle drive mechanism 23 based on the pattern of the handle or pattern.

(Problem of the invention) By the way, in such a needle selection mechanism, many vertical needles 6 and horizontal needles 21 cross each other in the vertical and horizontal directions, so that the vertical needles 6 and the horizontal needles 21 are bent or broken. Repair of the case was very troublesome.

An object of the present invention is to provide a jacquard machine having a needle selection mechanism that does not use a horizontal needle in order to solve the above problems.

(Means for Achieving the Problem) The present invention comprises a vertical needle having a lower end to which a thread is connected and an upper end having an engaging portion, and at least a part of which is made of a magnetic material, and is engaged with the engaging portion The same number of hooks as the vertical needles, a hinge that rotatably supports the hooks, a magnet that holds the hooks in a non-engaging position with the engaging portion, and a hook that engages the engaging portion from the non-engaging position. And a lift box that integrally lifts and lowers the hook.

(Operation) By exciting the solenoid to rotate the hook from the non-engagement position to the engagement position, only the vertical needles at the engagement position are pulled up when the lift box simultaneously pulls up the hooks, and the non-engagement position The vertical needle of will stay in the same position. Therefore, it is not necessary to drive the vertical needle in the horizontal direction for needle selection, the vertical needle is less likely to be damaged, and needle selection is performed without using the horizontal needle, which facilitates maintenance. Further, since the hook is normally held in the disengaged position by the magnet and moved to the engaged position only when the solenoid is energized, the hook is stably held in each engaged or disengaged position.

(Embodiment) FIGS. 1 and 2 show an embodiment of the present invention.

In FIG. 1, 1 is a frame of a jacquard machine in which a large number of vertical needles 6 are accommodated, and a loom body 2 shown in FIG.
Is supported above by a jack bolt 4.

A lift box 3 is provided above the frame 1. The lift box 3 is slidably supported in a vertical direction by a bearing 13 provided on the frame 1, and is vertically driven through a cam 5 connected to a main shaft of the loom body 2 and a link mechanism 15.

The vertical needle 6 is supported by guide rods 17 arranged in two horizontal directions so as to be orthogonal to the inside of the frame 1 and a base plate 14 provided at the lower portion of the frame 1 so that the vertical needle 6 can be freely displaced in the vertical direction. . Further, the base plate 14 also restricts downward displacement above a certain level.

At the upper end of the vertical needle 6, a hook-shaped bending portion 6A is formed as an engaging portion as in the conventional example. Note that a square hole may be formed at the upper end of the vertical needle 6 instead of the bending portion 6A. A thread 7 is connected to the lower end of the vertical needle 6.

Inside the lift box 3, a number of hooks 8 corresponding to the vertical needles 6 are attached. A part of the hook 8 is made of a magnetic material, and is supported by the lift box 3 in a swingable manner at a hinge 9. A magnet 10 and a solenoid 11 that exert a magnetic force on the hook 8 are arranged around the hook 8.
The magnet 10 acts on the hook 8 and holds the hook 8 to the side of the bending portion 6A of the vertical needle 6 when the solenoid 11 is not excited, as shown in FIG. Also, solenoid 11
When energized by energization, the hook 8 is attracted to the opposite side against the magnetic force of the magnet 10 as shown in FIG.
It is held immediately below the bending portion 6A.

Each solenoid 11 is connected to the signal processing device 12 and is excited by energization from the signal processing device 12. Signal processor 12
Is connected to a reading device 13 for reading the data on the pattern and pattern of the woven cloth by a signal circuit, and the solenoid 11 of the hook 8 of the corresponding vertical needle 6 is energized based on this data.

 Next, the operation will be described.

The lift box 3 moves up and down in conjunction with the loom body 2, and the hook 8 pulls up the vertical needle 6 in the frame 1 when the lift box 3 rises.

In that case, the hook 8 in which the solenoid 11 is not excited is held by the magnet 10 in the non-engagement position with the bending portion 6A of the vertical needle 6 as shown in FIG. Only rises.

On the other hand, since the hook 8 in which the solenoid 11 is excited is held at the engagement position with the bending portion 6A as shown in FIG. 7B, when the lift box 3 is displaced upward, the vertical needle 6 is pulled up together with the hook 8. .

Therefore, the signal processing device 12 outputs a signal corresponding to the pattern or pattern read by the data reading device 13 to the solenoid.
By outputting to 11, the specified vertical needle 6 is hooked 8
The thread 7 that is pulled up by and is connected to these warp needles 6.
Only will be pulled up.

In this way, the needle selection operation is performed without using the horizontal needle and without driving the vertical needle 6 in the horizontal direction. In addition,
Since the horizontal force is not applied to the vertical needle 6, the vertical needle 6 is less likely to be damaged, and since the horizontal needle is not used, maintenance inside the frame 1 can be easily performed.

(Effects of the Invention) As described above, according to the present invention, at least a part is made of a magnetic material, and the same number of hooks as the vertical needles that engage with the engaging portions of the vertical needles and the hooks are rotatably supported. A solenoid for driving the hook to rotate from the non-engagement position to the engagement position with the engagement part, and the magnet for holding the hook in the non-engagement position with the engagement part. It is possible to select a needle by a hook that rotates in response to the excitation of. Therefore, the vertical needle is not applied with a lateral force, and the risk of damaging the vertical needle is reduced. Moreover, since a horizontal needle is not required, the structure is simplified and maintenance is facilitated. Further, since the hook is stably held at each engaged or disengaged position by the magnet and the solenoid, the reliability of the jacquard machine is enhanced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a needle selection mechanism of a jacquard machine showing an embodiment of the present invention, and FIG. 2 is a schematic side view of the jacquard machine. Further, FIG. 3 is a perspective view of a needle selection mechanism of a jacquard machine showing a conventional example, and FIGS. 4 and 5 are enlarged front views of a main part for explaining the needle selection structure. 1 ... frame, 2 ... loom body, 3 ... lift box, 6 ... vertical needle, 6A ... engaging part, 7 ... thread, 8 ... hook, 10 ... magnet, 11 ... solenoid , 12 ... signal processing device, 13 ... data reading device.

Claims (1)

(57) [Scope of utility model registration request] 1. A vertical needle having a lower end to which thread is connected and an upper end provided with an engaging portion, and at least a part of the needle made of a magnetic material, and the same number of hooks as the vertical needle engaging with the engaging portion. , A hinge that rotatably supports the hook, a magnet that holds the hook in a non-engaging position with the engaging portion, and a hook that is rotationally driven from the non-engaging position to the engaging position with the engaging portion. A jacquard machine equipped with a solenoid and a lift box that raises and lowers the hooks integrally.