JP2000027047A - Heald-driving device in loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extremely compact heald-driving device having a simple structure instead of a jacquard machine requiring a wide installation space and having a complicated structure. SOLUTION: Linear motors 10 disposed in a box 2 in a line are received above a heald 5 through which warps Y pass. The linear motors 10 each has stators vertically disposed in the box 2 and a mover capable of being moved above the stators. A magnet disposed on the mover and plural coils disposed in the stators generate a magnetic field, in which the mover is moved with respect to the stators. A top belt for suspending a pulley 25 is fixed to the mover, and a bottom belt 24 downward wound on the pulley 25 is connected to the heald 5 through a harness cord 21. The pulley 25 is lifted to upward open the warps Y passing through the heald 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heald drive device for vertically moving a heald into which a warp is inserted by a linear motor.

[0002]

2. Description of the Related Art In recent years, when weaving a complicated woven fabric, a jacquard machine has been adopted in which a heald passing through a warp is directly moved up and down to weave. As for the Jacquard machine, an electronic Jacquard machine equipped with a solenoid is widely used, and its structure is simplified and the fabric structure can be easily changed as compared with the conventional punch card type. Jacquard machine 70
Is generally operated in a double-acting manner, as shown in FIG.
It has two hooks 73 that move up and down alternately, and a knife 75 that can be engaged with the hooks 73. Is done. Each hook 73 is engaged with a top belt 79 which is suspended below an upper roller 78a of a pulley 78, and a bottom belt 80 is suspended below a lower roller 78b of the pulley 78. . One of the bottom belts 80 is supported by the machine frame 72, and the other is connected to the heald via a thread (not shown). A warp thread is passed through the heald, and the heald is opened and lowered by raising and lowering the heald. As shown in FIG. 10, two sets of knives 75 are alternately moved up and down by a knife driving device 82 driven by a crank of a loom, as shown in FIG.

A knife driving device 82 includes a knife carrier 85 having a carrier rod 83 for suspending the knife 75 at both ends of the knife 75 and a carrier body 84 for supporting the carrier rod 83, and a drive driven from a loom crank. The knife carrier 85 is provided with a lever body 86 and a support lever body 87 supported by the machine frame and having a leading end connected to the drive lever body 86. The knife carrier 85 is supported by the support lever body 87 by swinging of the drive lever body 86. Moved up and down.

A hook 7 which is moved up and down by a knife 75
3 slides on the side surface of the solenoid body 76 at the upper part, and when one hook 73 is selectively attracted to the solenoid 77 in accordance with the fabric structure, the hook 73 engages with the hook of the solenoid body 76 at the upper position. The pulley 78 is raised by raising the other hook 73 by the knife 75, and the heald is raised to open the warp upward. Therefore, the fabric structure is previously input to the memory, and weaving is performed based on the structure.

[0005]

However, as described above, the jacquard machine is digitized, but the digitized portion is mainly a command device, and the hook 73 and the knife 7 are used.
Since the mechanism for engaging with the lever 5 and the mechanism for driving the knife 75 are complicatedly configured, the size of the machine is increased, the number of assembling steps is increased, and the cost is increased. In the case of adjusting the opening amount in this type of jacquard machine, as shown in FIG. 10, a plurality of swing levers forming the drive lever body 86 and a plurality of support levers forming the support lever body 87 are formed. Since one of the opening adjustment holes must be selected, it is necessary to attach and remove each lever when adjusting during use, which is troublesome and lengthens the downtime of the loom. I was In addition, since the jacquard machine is placed above the loom after assembling the tower, a factory with a large space had to be set up.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and can save space with an extremely compact structure in place of the conventional jacquard machine. It is an object of the present invention to provide a heald drive device for a loom in which adjustment can be easily performed.

[0007]

Means for Solving the Problems A heald drive device for a loom according to the present invention is configured as follows in order to solve the above-mentioned problems. That is, a heald drive device in a loom in which a plurality of healds through which one warp is inserted are arranged, and each heald moves up and down by moving up and down, and each heald is connected via heald connecting means. And driven by a linear motor having a mover and a stator.

The heald drive device in the loom is a heald drive device for a loom in which a plurality of healds through which one warp is inserted are arranged, and each heald moves up and down to perform an opening motion. A linear motor support case accommodating a plurality of linear motors is provided above the heald, and the respective linear motors in the linear motor support case are juxtaposed so as to face the respective healds. A linear motor having a stator mounted on the support case and a movable element movable with respect to the stator, one end of a heald connection means being connected to the movable element of the linear motor, The other end of the means is connected to the upper end of the heald.

Also preferably, two movers are provided with respect to the stator, and the heald connecting means includes a pulley means disposed below the mover, and a suspension means for suspending the pulley means. An upper suspension means for connecting each end to each of the movers, a thread for connecting a plurality of healds, and a wire wound around the pulley means, one end of which is fixed to the machine frame, and the other end of which is connected to the thread. And a lower suspending means to be connected, and is configured to suspend one thread through movement of two movers.

[0010] More preferably, the heald connecting means is a heald connector having one end connected to a thread passing the heald or a plurality of healds and the other end connected to the mover. It may be.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, a heald drive device (hereinafter, referred to as a device) 1 in a loom of the first embodiment has a plurality of linear motors 10 arranged in a matrix and a linear motor 10 built therein. A linear motor box (hereinafter referred to as a box) 2 and a connecting body 20 having an upper end connected to the linear motor and a heald 5 suspended from the lower end. The heald 5 has a warp Y inserted therein and an arrow 6 hanging down.

The box 2 has a plurality of linear motors 10 mounted in a matrix and is formed in a housing shape, and is mounted above a machine frame of a loom (not shown). Through holes 3 are formed between the respective rows of the linear motors 10 so that a later described top belt is inserted.

In this embodiment, the linear motor 10 is
As shown in FIGS. 3 and 4, a stator 11 is fixedly installed on the bottom surface of the box, and a movable element 15 movable vertically with respect to the stator 11. The field magnet 12 is arranged in the upright direction, and a coil 16 facing the magnet 12 is arranged on the mover 15. When the coil 16 is energized, a magnetic circuit is formed between the coil 16 and the magnet 12, and the coil 16 moves with respect to the magnet 12, whereby the mover 15 moves with respect to the stator 11. In the present embodiment, the mover 1 on which the coil 16 is disposed
Numerals 5 are arranged on both sides of the magnet 12 and operate separately by excitation of the respective coils 16 to constitute a double-acting type.

In this embodiment, a plurality of connecting members 20 (2
(About 10 to 10 strands) of healds 5 connected at the lower end and can be suspended through the thread 21 (see FIG. 1), and a perforated board 22 for inserting and passing each thread 21 up and down (see FIG. 1). And a top belt 23 attached to the pair of movers 15 of the linear motor 10, a bottom belt 24 engaged with the thread 21, and pulleys 25 wound around the top belt 23 and the bottom belt 24, respectively. The top belt 23
The bottom belt 24 and the pulley 25 constitute a moving pulley mechanism for performing the double-acting operation.

The pulley 25 has an upper roller 25a and a lower roller 25b, and is disposed below the box 2 so as to be able to move up and down.
Reference numeral 3 denotes a pulley 25 which is formed of a flexible member and bent in a U-shape.
And pulls the pulley 25 outside the box 2 by inserting the elongated insertion hole 3 into the box 2. The top belt 23 may be a flat belt, a rope or a wire with a flat metal fitting attached to the upper end, or a portion where a long flat plate is attached to the stator and wound around the upper roller 25a. It may be formed of a rope or a wire and locked to the flat plate. The bottom belt 24 is formed of a flexible member such as a rope or a wire, and has one end fixed to the machine frame and the other end wound downward around the lower roller 25 b of the pulley 25 to lock the thread 21.

Accordingly, the pulley 25 is moved between the lower position and the upper position by the selective movement of each of the pair of movers 15, and the bottom belt 24 for locking the thread 21 is moved by the movement of the pulley 25. The heald 5 is moved up and down by opening and closing the warp Y.

In the apparatus 1 configured as described above, the movable element is operated by a signal instructed to each linear motor 10 from a control device (not shown) to perform opening. The control device receives the organization chart of the fabric structure to be woven, the opening curve, the opening amount, and the like, and instructs each of the movers 15 on or off or the amount and speed of movement of the movable element 15 to be operated. .

As shown in FIGS. 5A and 5B, when the linear motor 10 is instructed to move the pair of movable elements 15 (15A and 15B) alternately up and down, the top belt 23 is driven by the upper roller of the pulley 25. The pulley 25 is not moved upward merely by sliding around the periphery 25a. Thus, heald 5 remains in the lower position. Usually this position is
Is opened downward with respect to the horizontal position (position where the weft passes). Next, when one movable element 15A is stopped at the upper position and the other movable element 15B is instructed to move from below to above, the pulley 25
Shifts from (b) to (c) in FIG. Therefore, pulley 2
5 is moved upward, and the heald 5 is also moved upward, thereby opening the warp Y from below. Further, when the linear motor 10 is commanded to stop the pair of movers 15A and 15B at the upper positions, the state shown in FIG. 5C is maintained. Accordingly, the heald 5 is also held at the upper position, and the warp Y remains open at the upper side.

As described above, if a command to move or stop the mover 15 of each linear motor 10 based on the input fabric structure, necessary weaving can be performed with an extremely simple structure.

An apparatus 31 shown in FIG. 6 is for vertically driving a thread connected to one heald or a plurality of healds by one mover. In operation, the device operates in a single-acting manner.
In this case, the plurality of linear motors 10 arranged in the box 2 are the same as those described above, and the movable element 15 having the coil 16 attached to the magnet 12 arranged in the stator 11 is A pair is slidably arranged on both sides. Held connector 32 having one end fixed to mover 15
Has the other end directly connected to the heald 5 or the thread. The heald connector 32 is formed of a metal flat plate or a cloth flat belt, a rope, a wire, or the like.
In the same manner as above, the heald 5 has the warp Y inserted and the arrow 6 hanging down. Then, the heald 5 moves up and down together with the warp Y by the operation of the respective movers 15 to perform opening. In the device 31 of this embodiment, the box 2 can be arranged around the place where the conventional perforated board 22 is arranged, and it is not necessary to take up the space in the height direction as in the related art when installing the loom.

The device 41 shown in FIG. 7 is the same as the device 3 shown in FIG.
Compared with the first embodiment, only one mover 15 of the linear motor 10 is used, and the heald connector 32 fixed to the mover 15 is directly connected to the heald 5 or the thread.

Note that the linear motor is not limited to the one described above.
As shown in (1), the coil may be mounted on the stator and the magnet may be mounted on the mover. The linear motor 60 used in the device 51 includes a stator 61 formed in an elongated shape.
A plurality of coils 62 are attached in the longitudinal direction, and a substrate 63 covers the coils 62. On the other hand, a movable element 65 movable with respect to the stator 61 is provided with a multi-pole field magnet 66 so as to face the coil 62. The stator 61 is erected on the box 2, the heald connector 32 is attached to the mover 65, and connected to the heald 5 as in the device 41 shown in FIG. 7. A warp Y is inserted through the heald 5 and an arrow 6 is hung downward.

As described above, in each of the above types of apparatuses, a box accommodating a plurality of linear motors can be installed immediately above the loom. The input of the fabric structure, the adjustment of the opening amount, and the setting of the opening curve and the like are determined by the moving state of the mover by energizing / de-energizing the coil of the linear motor. Therefore, there is no need for a mechanical connection drive with the loom, and they are all set by electrical timing.

The configuration of the linear motor is not limited to the above, and any structure may be used as long as it has a mover and a stator and can generate a magnetic field by a coil and a magnet, respectively. The device can be configured.

[0026]

According to the heald driving device in the loom of the present invention, a plurality of healds through which one warp is inserted are arranged, and each heald moves up and down to perform an opening motion. Is driven by a linear motor having a mover and a stator via a heald connection means. Therefore, there is no need to mount a complicated jacquard machine by assembling and setting up a tower above the loom as in the related art, and it is possible to provide a heald drive device having an extremely simple configuration. In addition, a complicated woven fabric can be woven under the same control as an electronic jacquard machine using a conventional solenoid.

This heald drive device is provided with a plurality of healds through which one warp is inserted, and performs an opening motion by moving each heald up and down. A linear motor support case accommodating a plurality of linear motors is provided, and the respective linear motors in the linear motor support case are arranged in parallel so as to face respective healds, and the linear motor is supported by the linear motor. The linear motor has a stator mounted on a case and a movable element movable with respect to the stator, one end of a heald coupling means is connected to the movable element of the linear motor, and the other end of the heald coupling means is connected to the heald. It is configured to be connected to the upper end of the. for that reason,
It is not necessary to mount a jacquard machine having a complicated configuration by installing a turret above a loom as in the conventional case, and it is possible to provide a heald drive device having an extremely simple configuration. In addition, a complicated woven fabric can be woven under the same control as an electronic jacquard machine using a conventional solenoid.

In addition, two movers disposed on the linear motor are disposed with respect to the stator, and the heald connecting means comprises pulley means disposed below the mover, and pulley means. Suspended upper suspension means for connecting each end to two movable elements, a thread for connecting a plurality of healds, winding around the pulley means, one end fixed to the machine frame, and the other end connected. And a lower suspension means connected to the thread. The apparatus is configured to suspend one thread by moving two movers. Therefore, the heald can be opened in a double-acting manner, and it is possible to cope with high-speed operation.

Further, if the heald connecting means for connecting the linear motor and the heald is a heald connector having one end connected to a thread for connecting the heald or a plurality of healds and the other end connected to the mover, Since the apparatus can be arranged around the eye when installing the conventional jacquard machine, further space saving can be achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a mechanism illustrating an apparatus of one embodiment of the present invention.

FIG. 2 is a plan view showing an arrangement state of a linear motor in a box in FIG. 1;

FIG. 3 is a front view showing details of a linear motor and a pulley unit in FIG. 1;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 shows the operation of the device of FIG. 1;

FIG. 6 is an explanatory view of a mechanism showing another apparatus of the present invention.

FIG. 7 is an explanatory view of a mechanism of still another apparatus of the present invention.

FIG. 8 is an explanatory view of a mechanism showing an apparatus using another type of linear motor.

FIG. 9 is an explanatory view of a mechanism showing a conventional electronic jacquard machine.

FIG. 10 is a side view showing a knife driving device of a conventional Jacquard machine.

[Explanation of symbols]

 1, 31, 41, 51 device 2 box (supporting case) 5 heald 10 linear motor 11 stator 12 magnet 15 mover 16 coil 20 coupling body (connection means) 21 threading 22 ... Eye plate 23 ... Top belt (Upper suspension means) 24 ... Bottom belt (Lower suspension means) 25 ... Pulley 25a ... Upper roller 25b ... Lower roller 32 ... Heald connector

Claims (4)

[Claims] 1. A heald drive device for a loom in which a plurality of healds through which one warp is inserted is provided, and each heald moves up and down by moving the healds up and down. A heald drive device in a loom, wherein the heald drive device is driven by a linear motor having a mover and a stator via a means. 2. A heald drive device for a loom in which a plurality of healds through which one warp is inserted are provided, and each heald moves up and down by moving the healds up and down. A linear motor support case for accommodating the linear motors is provided. And a mover movable with respect to the stator, one end of a heald connection means is connected to the mover of the linear motor, and the other end of the heald connection means is connected to the heald. A heald drive device in a loom, which is connected to an upper end portion. 3. The stator according to claim 1, wherein the movable element is provided two with respect to the stator, and the heald connecting means includes a pulley means disposed below the movable element, and two pulleys suspending the pulley means. An upper suspension means for connecting each end to the mover, a thread for connecting a plurality of healds, and a wire wound around the pulley means, one end of which is fixed to the machine frame, and the other end of which is connected to the thread. The heald drive device for a loom according to claim 2, further comprising a lower suspension means, wherein one mover is suspended by moving two movers. 4. The heald connector as claimed in claim 2, wherein the heald connection means is a heald connector connected at one end to a thread for connecting the heald or a plurality of healds and at the other end to the mover. A heald drive in the loom described.