JP2000027046A - Jacquard machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a Jacquard machine capable of extremely easily controlling a complicated woven fabric tissue and an opening degree or changing an opened curved line and having a compact structure. SOLUTION: This Jacquard machine 1 has periodically alternately upward or downward movable knives 5A, 5B and hooks capable of being engaged with the knives 5A, 5B. The hooks each is selectively adsorbed to a solenoid at an upper position to stop its movement. The knives 5A, 5B are suspended from knife carriers 20 at both the end portions, respectively. Both the ends of each knife carrier 20 are fixed to the mover 17 of a linear motor 12 whose stators are fixed to a frame 2. The mover 17 is reciprocatively moved with respect to the stators to drive the knife 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a jacquard machine, and more particularly to a jacquard machine driven by a linear motor.

[0002]

2. Description of the Related Art In recent years, an electronic jacquard machine having a solenoid has been widely used in a jacquard machine, and the structure thereof has been simplified and the fabric structure has been extremely easily changed as compared with a conventional punch card system. Since the Jacquard machine is generally operated in a double-acting manner, as shown in FIG. 1, the jacquard machine has two hooks 3 which move up and down alternately, and a knife 5 which can be engaged with the hooks 3. Movement is selectively stopped at a position above the solenoid 7 by a solenoid 7 disposed on the solenoid body 6. Each hook 3 has a pulley 8 at the bottom
The upper belt 8 is suspended by a top belt 9 suspended upward from the upper roller 8a, and the lower roller 8b of the pulley 8 is suspended downward from a bottom belt 10. One of the bottom belts 10 is supported by the machine frame 2 and the other is connected to a heald via a harness (not shown). A warp thread is passed through the heald, and the heald is opened and lowered by raising and lowering the heald. 12 and 13, two sets of knives 5A and 5B are alternately moved up and down by a knife driving device 60 driven by a crank of a loom, as shown in FIGS.

A knife driving device 60 includes a knife carrier 64 having a carrier rod 61 for suspending the knife 5 at both ends of the knife 5, a pin 62 for supporting the upper portion of the carrier rod 61, and a carrier body 63 connected to the pin 62. When,
A drive lever body 65 driven by a crank of the loom; and a support lever body 68 supported by the machine frame 2 and having a leading end connected to the drive lever body 65. Carrier 6 while being supported by
4 is moved up and down.

A hook 3 moved up and down by a knife 5
Slides on the side surface of the solenoid body 6 at the upper part, and one of the hooks 3A is selectively operated according to the fabric structure.
The hook 3A is engaged with the hook locking portion 6a of the solenoid body 6 at the upper position, and the other hook 3B is raised by the knife 5B to raise the pulley 8, thereby raising the heald and opening the hook. Perform 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 has a complicated structure with many mechanical parts at each part even though it is digitized. In particular, the mechanism for driving the knife 5 has a drive lever body 65 and a support lever body 68 to move the knife carrier 64 up and down. The drive lever body 65 has a crank lever 66 connected to the crank of the loom and a substantially L-shaped swing lever 67 rotatably connected to the crank lever 66, and is connected to the carrier main body 63. The first of the lever body 68
The support lever 69 is connected to the tip of the swing lever 67,
A second support lever 70 connected to the first support lever 69 is fixed to the machine frame 2 and performs a swinging motion. The drive lever body 65 and the support lever body 68 are plural (for example, 25 to 5).
Since it is arranged outside the knives 5 arranged in parallel with 0), not only the device is increased in size, but also the number of parts is large and the structure is complicated. As a result, the number of assembling steps has been increased and the cost has been increased.

Further, in this type of jacquard machine, when the opening amount is adjusted, as shown in FIG. 13, it is formed on a swing lever 67 of a drive lever body 65 and a first support lever 69 of a support lever body 68. Opening adjustment holes 67a and 69a
Therefore, when adjustment is performed during use, it is necessary to attach and remove the respective levers, which requires time and effort and increases the downtime of the loom.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and the vertical movement of a knife is performed by a linear motor, thereby making the apparatus compact with a simple structure and adjusting the opening amount extremely easily. The purpose is to provide a card machine.

[0008]

A jacquard machine according to the present invention is configured as follows to solve the above-mentioned problems. That is, a jacquard machine having a hook connected to a lower part for moving the heald up and down, and a knife engaging the hook and moving up and down periodically, wherein the knife is driven by a linear motor. It is characterized by being driven up and down.

The jacquard machine has a hook connected to a lower part for moving the heald up and down, and a knife engaged with the hook and moving up and down periodically. The hook is actuated to selectively maintain and stop at an upper position while continuing to move up and down;
The knife is supported by a knife carrier and operates to move the hook between a lower position and an upper position, and the knife carrier is connected to a mover of a linear motor. .

Preferably, the linear motor includes a plurality of coils, a magnet that generates a magnetic field facing the coils, a stator, and a mover that is movable with respect to the stator by the generated magnetic field. May be used as long as it is configured to have the following.

Further, the hook may be selectively maintained and stopped at an upper position by a solenoid means.

[0012]

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

FIG. 1 shows a part of a portion of the jacquard machine 1 for driving the hooks 3 in a characteristic manner. Thousands of the hooks 3 are arranged in a matrix according to the specifications of the jacquard machine 1. . A pair of hooks 3 corresponding to one harness to be driven by double action is formed of a thin plate-like magnetic material, and is provided with a knife locking portion 3a at a central portion, a solenoid locking portion 3b at an upper portion, and a top belt at a lower portion. 3c, and a knife locking portion 3a
Is engaged with the knife 5 which reciprocates alternately by the linear motor 12 shown in FIG.
b is engaged with the hook locking portion 6a of the solenoid body 6 by exciting the solenoid 7 arranged above. The top belt 9 engaging with the top belt locking portion 3c is formed of a flexible member, and the pulley 8 and the bottom belt 10 constitute a moving pulley mechanism.

A commercially available linear motor 12 is used. For example, the one shown in FIG. 2 encloses a long stator 13 in which a plurality of coils 14 and a substrate 15 disposed on the coil 14 are disposed on one surface, and the coil 14 and the substrate 15. And a multi-pole field magnet 1 is formed so as to have a U-shaped cross section and face the substrate 15.
And a mover 17 to which 6 is attached.
A mover 17 is provided movably on the stator 13.

The knife 5 has a pair of hooks 3 (3A and 3B).
, The two knives 5 (5A and 5B) are driven by different linear motors 12 to alternately move up and down. Dozens of knives 5 are arranged side by side in the left-right direction in FIG.
A plurality of hooks 3 are engaged with the knife 5, and are shown in FIGS.
As shown in FIG. 4, every other knife 5 has one knife at each end.
It is supported by the knife carriers 20. Accordingly, two knife carriers 20 are arranged so as to alternately move up and down at each end, and four knife carriers 20 are arranged on both sides. Each knife carrier 20 includes a carrier rod 21 through which the knife 5 is inserted and suspended, and a carrier body 2 which supports the carrier rod 21 with pins 23 at the top.
And a carrier 17 of the linear motor 12 for mounting the stator 13 to the machine frame 2 at both ends thereof.
To be fixed. Each linear motor 12 is operated by a command from a control device (not shown).

Further, the linear motor may be one shown in FIG. The linear motor 30 includes a stator 31 having a magnet 32 fixed thereto and formed in an E-shaped cross section, and a mover 34 having a substantially U-shaped cross section provided with a coil body 35 at a tip portion. Are movably arranged in the stator 31. Then, as shown in the side sectional view of FIG. 6, the knife carrier 20 is vertically driven by attaching the stator 31 of the linear motor 30 to the machine frame 2 and attaching the mover 34 to the lower surface of the carrier body 22. be able to.

The linear motor is not limited to the above-described embodiment, but may be another type.
In any case, the stator 13 may be attached to the machine frame 2 and the mover 17 may be attached to the carrier body 22.

Jacquard machine 1 constructed as described above
The mover 17 moves with respect to the stator 13 when the respective linear motors 12 are commanded by the control device. Since the jacquard machine generally performs inclined opening, the moving amount of the mover 17 of the linear motor 12 on the cloth fell side is smaller than the moving amount of the mover 17 of the linear motor 12 on the cloth weave side. Incline so as to rise toward the side. This inclination angle can be changed very easily only by setting the amount of movement between the front side and the rear side. Further, when changing the opening curve, for example, when making a curve such as a sine curve or a Vestehorn, the curve can be easily set by inputting to the control device. Further, when the opening time is further lengthened by the fabric, it can be easily set by inputting the stop time to the control device at the set maximum stroke position of the movable element.

The command to the hook 3 controlled by the fabric structure is performed by the solenoid 7 in a conventional manner. This operation will be described below with reference to FIG. 1 and FIGS. FIG.
As shown in FIG. 7 and FIG. 7, when the solenoid 7 is not energized and the solenoid locking portion 3b of the hook 3 is not engaged with the hook locking portion 6a of the solenoid body 6, the hook 3 is engaged with the knife and Is slid around the upper roller 8a of the pulley 8 via the top belt 9 with the up and down movement of.
Therefore, the pulley 8 is not moved upward, and the bottom belt 10 is not moved.
Does not rise, so the heald remains stationary in the lower position.

Next, when the solenoid 7 corresponding to the one hook 3A is excited, the solenoid locking portion 3b of the hook 3A, which has been moved upward by the up and down movement of the one knife 5A,
It rises slightly from the hook locking part 6a of the solenoid body 6,
The knife 5A moves downward as the knife 5A descends. However, the knife 5A falls down toward the solenoid 7 by the attraction force of the solenoid 7 and engages with the hook locking portion 6a of the solenoid body 6, so that the downward movement is not performed. In this state, when the other knife 5B lifts the knife engaging portion 3a of the hook 3B as shown in FIG. 8, the one hook 3B stops its movement. The roller 8a is lifted, and the bottom belt 10 wound around the lower roller 8b is raised. Accordingly, the heald rises and opens the warp upward.

Next, in the above state, if the solenoid 7 corresponding to the other hook 3B is not excited, the knife engaging portion 3a
The hook 3B engaged with the knife 5B moves downward with the lowering of the knife 5B, thereby opening the warp downward. Further, when the solenoid 7 corresponding to the other hook 3B is excited, as shown in FIG.
Since B is engaged with the hook locking portion 6a of the solenoid body 6, the knife 5B moves downward without being engaged with the knife locking portion 3a of the hook 3B. As a result, the heald remains elevated and the warp remains open upward.

As described above, the knife 5 is connected to the linear motor 12
The hook 3 is moved upward and downward periodically by the vertical movement of the knife 5 and the excitation of the solenoid 6, whereby the opening along the fabric structure is performed.

The configuration of the Jacquard machine is not limited to the above-described embodiment. For example, the knife carrier may have a carrier rod that suspends the knife and may support the knife only with the carrier body. In this case, as shown in FIG. 10, short grooves 42A and long grooves 43A facing upward are alternately formed in one carrier body 41A, and the knife 5A is fixed to the short grooves 42A. Short grooves 42B and long grooves 43B facing downward are alternately formed in the other carrier body 41B, and the knife 5B is fixed to the short grooves 42B. Each knife 5 has a long groove 43A / 43B formed in each carrier body 41A / 41B.
Arrange so that you can enter and exit. The linear motors 12 are provided at both ends of each of the carrier bodies 41A and 41B.
Attach.

The structure of the solenoid for absorbing the hook may be as shown in FIG. Knife locking portions 53a are attached to both ends of hooks 53 wound around the pulleys 52. Hook locking levers 56a which engage the knife locking portions 53a of the respective hooks 53 are attached to the solenoid body 56.
Is mounted so as to be openable about its center. The hook locking lever 56a rotates in a direction that does not engage with the knife locking portion 53a by the excitation of the solenoid 57, and the knife locking portion 53a is rotated by the spring 58 by the non-excitation of the solenoid 57.
It is configured to rotate in a direction to engage with. The knife 59 is moved up and down by the linear motor in the same manner as in the above embodiment, and the function of the hook 53 to move up and down is the same as in the above embodiment.

[0025]

The jacquard machine according to the present invention comprises a hook connected to the lower part for moving the heald up and down, and a knife engaged with the hook and moving up and down periodically. , The knife is driven by a linear motor. Therefore, a jacquard machine that is compact and can easily adjust the opening amount can be provided because a knife driving device having a complicated configuration as in the related art is not required.

Also, the jacquard machine includes a hook connected to a lower part for moving the heald up and down, and a knife engaged with the hook and moving up and down periodically. The hook is operated to selectively maintain and stop at an upper position while continuing up and down movement, and the knife is operated to move the hook between a lower position and an upper position supported by a knife carrier. In addition, the knife carrier is connected to a mover of a linear motor. Therefore, a jacquard machine that is compact and can easily adjust the opening amount can be provided because a knife driving device having a complicated configuration as in the related art is not required.

Further, if the hooks are selectively controlled by a solenoid and the knife is driven by a linear motor, a Jacquard machine having an extremely compact structure can be provided, and a complicated fabric can be manufactured by a very easy operation. It is possible to perform weaving by changing the structure, adjusting the shedding amount of the warp, or changing the shedding curve.

[Brief description of the drawings]

FIG. 1 is a mechanism explanatory view showing a part of a jacquard machine according to one embodiment of the present invention.

FIG. 2 is a perspective view showing one form of a linear motor provided in the jacquard machine of FIG. 1;

FIG. 3 is a side sectional view showing the knife driving device of FIG. 1;

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a perspective view showing another type of linear motor.

FIG. 6 is a cross-sectional view of FIG.

FIG. 7 is a movement diagram of a hook.

FIG. 8 is a movement operation diagram of a hook.

FIG. 9 is a diagram illustrating a movement operation of a hook.

FIG. 10 is a perspective view showing a part of another embodiment of the knife carrier.

FIG. 11 is a sectional view showing another embodiment of a solenoid body.

FIG. 12 is a side view showing a knife driving device of a conventional Jacquard machine.

FIG. 13 is a partially enlarged view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Jacquard machine 2 ... Machine frame 3, 3A, 3B ... Hook 3a ... Knife locking part 3b ... Solenoid locking part 5, 5A, 5B ... Knife 6 ... Solenoid body 6a ... Hook locking part 7 ... Solenoid 8 ... Pulley 9 ... Top belt 10 ... Bottom belt 12 ... Linear motor 13 ... Stator 17 ... Mover 20 ... Knife carrier 21 ... Carrier rod 22 ... Carrier body

Claims (4)

[Claims] 1. A Jacquard machine having a hook connected to a lower part for vertically moving the heald, and a knife engaging the hook and vertically moving the heald, wherein the knife comprises: A jacquard machine driven vertically by a linear motor. 2. A jacquard machine having a hook connected below to move the heald up and down, and a knife engaged with the hook to move up and down periodically. The knife is operated to selectively maintain and stop at an upper position while continuing the vertical movement, and the knife is operated to move the hook between a lower position and an upper position supported by a knife carrier; A jacquard machine characterized in that a knife carrier is connected to a mover of a linear motor. 3. The linear motor, comprising: a plurality of coils;
2. The apparatus according to claim 1, further comprising a magnet that generates a magnetic field facing the coil, a stator, and a mover that is movable with respect to the stator by the generated magnetic field. 3. 2. Jacquard machine according to 2. 4. The jacquard machine according to claim 2, wherein said hook is selectively maintained and stopped at an upper position by solenoid means.