JP2581748Y2 - Finger actuator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finger operating device, and more particularly, to a finger operating device for operating a finger by a piezoelectric or electromagnetic driving source, thereby selecting a knitting needle or controlling a heald rod of a loom. The present invention relates to an improved technique of a pin hinge portion supporting the finger in the device.

[0002]

2. Description of the Related Art In a pattern knitting machine such as a pattern knitting circular knitting machine or a pattern knitting flat knitting machine, a pattern knitting procedure stored in a storage device such as a pin drum, tape or floppy disk is transmitted to the vertical movement of a knitting needle. For this reason, a needle selecting device is used. As a needle selecting device of this type, a needle selecting device for a knitting machine using an electromagnet is known. However, there is a limit in increasing the response speed from the aspect of the function of the electromagnet itself. It has heat, consumes a large amount of power, and requires a large needle selection device. As a needle selecting device of this type, a piezoelectric needle selecting device in which a voltage is applied to a piezoelectric body to activate a selection finger to select a knitting needle has also been proposed. Referring to FIG. 4, an example of a needle selecting operation by the piezoelectric needle selecting device will be described. A finger 4 is attached to a tip of a piezoelectric body 3 having a plate 1 and a piezoelectric element 2 bonded to both surfaces thereof. A voltage is applied to the body 3 via the lead wire 5, the finger 4 is operated following the movement of the piezoelectric body 3, and the butt of the needle selecting jack 7 arranged in contact with the lower end of the knitting needle 6. (Finger bat) 8 is for forming or releasing engagement with the finger bat 8. As shown in FIG. 4A, no pulse is applied to the piezoelectric element 2 of the piezoelectric body 3 (or a negative pulse is applied). In this case, the tip of the finger 4 comes into contact with the butt (finger bat) 8 of the jack 7 (or the knitting needle 6 itself), and presses the jack 7. As a result, the raising cam at the lower end of the jack 7 Bat 9 is attached to the lifting cam 10 Can not be case, the jack 7 and knitting needles 6 abutting on the upward without lifting movement, as a result, in the knitting needle 6, although the formation of stitches is not performed,
On the other hand, as shown in FIG.
When the piezoelectric body 3 is bent by applying a pulse to the jack 7, the tip of the finger 4 does not enter the movement locus of the butt 8 of the jack 7, so that the jack 7 maintains the vertical position. The raising cam butt 9 at the lower end engages with the raising cam 10 to raise the jack 7 and the knitting needle 6 abutting thereon, so that the knitting stitches are formed by the knitting needle 6. . According to the needle selection device using the piezoelectric method, the needle selection operation can be performed at a much higher needle selection speed than the needle selection device using an electromagnet,
It has a fast response speed, can apply high-cycle pulses, consumes less power than an electromagnet-based needle selection device, and can further reduce the size of the needle selection device itself. There are advantages. FIG. 6 shows a perspective view of an example of such a piezoelectric needle selecting device. As shown in FIG. 6, a halfway position of the finger 4 is held by the finger supporting portion 11, and the distal end portion of the finger 4 is moved from the finger supporting portion 11. The needle selection operation as described above is performed by projecting from the opening 13 of the stopper 12 erected at the separated position. Conventionally,
To support the finger 4 on the finger support portion 11,
As shown in FIGS. 3 and 5, a pin hole 14 having a round hole is formed at a halfway position of the finger 4 in the width direction of the finger 4, and a round pin 15 is inserted into the pin hole 14 of the round hole. The bearings 16 are inserted into both ends of the round pin 15 through the holes provided on the left and right side walls of the support portion 11, the halfway position of the finger 4 is attached to the finger support portion 11, and the finger 4 is moved to the halfway position. (Hereinafter, sometimes referred to as a pin hinge) as a fulcrum. At this time, the clearance between the pin hole 14 and the round pin 15 is made as small as possible to prevent backlash.

[0003]

However, when the lubricating oil is used to constitute the pin hinge portion, operate the needle selecting device, and reduce the mechanical resistance of the pin hinge portion, the pin hole 14 is required. Because the clearance between the pin 15 and the round pin 15 is small, the flow of the lubricating oil also deteriorates, and the lubricating oil adheres to the entire outer periphery of the pin 15 and the entire inner surface of the pin hole 14, thereby driving the needle selecting device. In some cases, such a phenomenon may occur that an appropriate response speed cannot be obtained. The viscosity resistance of lubricating oil is easily influenced by temperature conditions. In particular, in the winter, it is necessary to idle up the machine or a large amount of oil is needed to remove deteriorated lubricating oil (hereinafter sometimes referred to as oil). There is a drawback that time is consumed, and there is a drawback that maintenance of the machine becomes complicated. Such a phenomenon occurs remarkably in the case of the needle selection device using the piezoelectric method as described above, and is a problem associated with a remarkably high speed.In the case of the electromagnetic needle selection device, it does not cause much problem and is regarded as important. I didn't.
Such a phenomenon also occurs in a control device for a loom that operates a finger to control a heald rod of the loom and enables pattern weaving. Therefore, an object of the present invention is to provide a technique capable of solving the above-mentioned disadvantages in the conventional example. Other objects and novel features of the present invention will become apparent from the description throughout the present specification and the accompanying drawings.

[0004]

In order to achieve the above object, the present invention comprises a finger and a driving source for the finger, and inserts a pin into a pin hole provided in the finger to insert the finger. The finger is supported by the support, and the finger is driven by the driving source of the finger, and the finger is operated with the support point as a fulcrum to select the knitting needle of the knitting machine or control the heald rod of the loom. In the finger actuating device, the pin hole of the finger is a square hole and a round pin is inserted into the pin hole of the square hole, or the pin hole is configured as a round hole and the square pin is inserted into the pin hole of the round hole. In particular, the present invention relates to a finger operating device characterized in that a finger is operated by applying a voltage to a piezoelectric body, and by operating the finger, a knitting needle of a knitting machine is selected to perform sowing. Allow pattern A knitting machine needle selection device for, or by applying a voltage to the piezoelectric similarly actuates the finger,
The present invention relates to a warp control device for a loom which controls a heald bar of a loom by operating the finger, and furthermore, controls a warp yarn to enable pattern weaving of a woven fabric.

[0005]

According to the above means, when a round pin is inserted into a square hole or a square pin is inserted into a round hole, the adhesive area of the lubricating oil is reduced, and the temperature dependence of the oil or the oil In addition, the effect of deterioration of the oil is reduced, the space for oil flow is increased, the flow of lubricating oil is improved, and the disadvantage of consuming a lot of time for removing the deteriorated oil is eliminated. And the driving operation of the needle selecting device can be made smooth. This technique is effective when the finger is operated with the pin hinge part at the middle position of the finger as a fulcrum, and when the finger is operated at a much higher speed by the piezoelectric drive source, it does not hinder smooth finger operation. Therefore, the end of the finger is not fixed to the front end of the piezoelectric body but can be moved as described in a later embodiment, and furthermore, the rear end of the piezoelectric body and the middle position thereof are This is effective when movably supported by the support.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1A to 1C, the finger 17
A square hole 18 is provided in the pin hinge portion of the above, and the round pin 15 is inserted into the square hole 18.

FIG. 2 shows a modification of the present invention, and FIG.
FIG. 2B shows an example in which the pin hole 18 is a triangular hole and the round pin 15 is inserted therein, and FIG. 2B shows an example in which the pin hole 18 is a hexagonal hole and the round pin 15 is inserted therein. 2 (C) is
An example is shown in which the pin hole 18 is a round hole and the square pin 15 is inserted therein. In the present invention, as shown in FIG. 2 (D), both the pin hole and the pin may be square, such as a square hole for the pin hole 18 and a hexagonal pin 15 inserted therein. .

As described above, the square hole 18 is provided in the pin hinge portion of the finger 17, and the round pin 15 is inserted into the square hole 18. When the speed is fast and the frictional resistance between the pin hole and the pin becomes a problem as in the system, the adhesive area of the oil is reduced, the effect of oil temperature dependency or oil deterioration is reduced, and the space where oil flows Increases the flow of the lubricating oil, eliminates the disadvantage of consuming a lot of time for removing the deteriorated oil, makes the maintenance of the machine easier, and reduces the driving operation of the finger 17 of the needle selection device. It can be smooth.

As shown in FIG. 1B, in the configuration of the needle selecting device, the piezoelectric body 3 is connected to the rear end opening of the finger 17. In the above description, the piezoelectric body 3 has been described in which the piezoelectric element 2 is bonded to the plate 1, but the piezoelectric body 3 may be formed by bonding the piezoelectric element 2 and the piezoelectric element 2 with a conductive adhesive. Any piezoelectric element can be used as the piezoelectric element 2 as long as it has an inverse piezoelectric effect. However, in order to supply a large quantity of industrially stable piezoelectric elements, the piezoelectric element 2 is made of barium titanate or the like. It is preferable to use a ceramic piezoelectric element. Finger 1
Reference numeral 7 is made of, for example, a metal.

The spherical body 2 is inserted into the groove 20 of the piezoelectric body mounting portion 19.
One end (rear end) of the piezoelectric body 3 to which 1 is attached is inserted.
A groove is formed at an end of the spherical body 21, and one end of the piezoelectric body 3 is inserted into the groove and fixed. The spherical body 2
The spherical portion 1 is rotatable in the groove 20 of the piezoelectric body mounting portion 19, and accordingly, the rear end of the piezoelectric body 3 is movable. The spherical body 21 is made of, for example, resin and can be fixed to the piezoelectric body 3 by injection molding (integral molding) performed by injecting, for example, resin.

A spherical body 21 similar to the above is also mounted on the other end (tip) of the piezoelectric body 3. In the same manner as described above, the spherical body 21 can be attached to the piezoelectric body 3 by integral molding by injection molding, for example, by injecting a resin.
As shown in the figure, the spherical body 21 is pinched and connected to the open end of the rear end of the finger 4. The spherical body 21 is rotatable within the rear end of the finger 4, so that the front end of the piezoelectric body 3 is movable.
The finger 4 is connected to the rectangular piezoelectric body 1 so as to be aligned (in the same direction).

An intermediate position between the rear end portion and the front end portion of the piezoelectric body 1 is fixed to a rotating body 23 attached to a rotating body mounting portion (halfway fulcrum portion) 22. The rotator 23 is provided with a through-hole having a size large enough to allow the piezoelectric body 3 to be inserted. The piezo-electric body 3 is inserted into the through-hole of the rotator 3 and is fixed in the through-hole with an adhesive or the like. The intermediate position of the body 3 may be movable following the rotation of the rotating body 23,
Is preferably made of a resin and fixed to the piezoelectric body 3 by, for example, injection molding of the resin. Both ends of the rotator 23 are rotatably mounted by passing shafts through holes formed in the rotator mounting portion (halfway fulcrum portion) 22.

A lead 5 is attached to the piezoelectric body 3, and a controller (not shown) is connected to the other end of the lead 5, and a pulse is applied to each piezoelectric element 2 from the controller. The controller stores a pattern knitting structure and, based on the stored knitting procedure, a plurality of piezoelectric elements 2.
The finger 17 performs the knitting action as described above with the pin hinge part at the middle position of the finger as a fulcrum, based on the knitting procedure of the controller.
Perform pattern knitting.

As described above, the spherical body 21 is attached to one end and the other end of the piezoelectric body 3 so that the one end and the other end can move freely, and the intermediate position of the piezoelectric body 3 is also set. When the movable member 23 is movable following the rotation of the rotating body 23, the needle selecting speed can be remarkably improved as compared with a conventional piezoelectric needle selecting device as described below. The present invention is effective in the case where the piezoelectric body 3 moves freely and the fingers 17 operate at a high speed and the needle selection speed is fast. In the above-described device, the needle selection speed is faster than in the conventional device, the life of the piezoelectric body 3 is extended, and the piezoelectric body 3 and the finger 1
7 is oriented in the same direction so as to be on a straight line, so that the needle selecting device can be downsized in the horizontal direction without taking a lateral width, and the needle selecting device can be downsized also in the height direction. . In this regard, in the conventional needle selection device using the piezoelectric method, the end of the piezoelectric body is fixed to a support or the like, and the piezoelectric body is operated in a cantilever form, or a finger is placed on the piezoelectric body. For example, since the piezoelectric body is bent in a cantilever form such as attaching a finger to the piezoelectric body in a T-shape, if the response speed is further increased by applying a higher cycle pulse, the Insufficient operation stabilization, or a load is applied to the piezoelectric body, damaging the piezoelectric element of the piezoelectric body, shortening its life, or increasing the width of the needle in the horizontal direction, so that the needle selection device is enlarged. However, the above-described device of the present invention can eliminate such a disadvantage.

The needle selecting device according to the present invention can be applied to various knitting machines such as a sock knitting machine, and can be used for a flat knitting machine as well as a circular knitting machine. Next, the present invention is applied to a jaw of a loom.
An example in which the present invention is applied to a control device for a loom that controls a control rod (a heald bar) in a sewing machine and enables pattern weaving such as jacquard weaving will be described with reference to FIGS. 7 and 8. The control device is also operated by the piezoelectric method. When a pulse is applied to the piezoelectric element of the piezoelectric body 3 via the controller storing the pattern formation procedure, the piezoelectric body 3
Since the finger 17 is connected to the piezoelectric body 3 in a bending motion, the finger 17 is also operated, and the finger 17 is provided with a hook portion or a hole 170. Is engaged with the finger 17, while when no pulse is applied to the piezoelectric element of the piezoelectric body 3, the finger 17 does not engage with the control rod 24 and Thus, the finger 17 can selectively engage and hold the control rod 24, and the hook 240 at the lower end of the control rod 24 is attached to the heald of the loom and further to the warp yarn. The control rod 24 is operatively linked to the heald to control the heald and control the warp. As shown in FIG. 8A, when the control rod 24 stays at the finger 17, the control rod 24 does not move downward,
As shown in (B), in the opposite case, the control rod 24 moves downward, and the selection of the heald and the control of the warp are performed by such a vertical movement. In the control device, as shown in FIG.
7 is provided with a square hole 18 at the pin hinge portion, and the round pin 15 is inserted into the square hole 18. Alternatively, the pin holes are formed as round holes, and square pins are inserted. Piezoelectric body 3
The spherical body 21 is attached to one end and the other end of the piezoelectric body 3 so that the one end and the other end can move freely, and the middle position of the piezoelectric body 3 can also move following the rotation of the rotating body 23. The possible configuration is the same. According to such a warp device of the piezoelectric type, the response speed is high, the heat generation is small even when a high cycle pulse is applied, and the rotation speed is twice or more that of the conventionally known electromagnet. The loom can perform its function.

Although the invention made in accordance with the present invention has been specifically described based on the embodiments, the present invention is not limited to the above-described embodiments, and may be variously modified without departing from the gist thereof. Needless to say. Although the present invention employs an electromagnetic type drive source for the finger, the present invention may be applied to a case where the finger is operated with a pin hinge part at a middle position of the finger as a fulcrum.

[0017]

[Effects of the Invention] As described above, according to the present invention, the oil adhesion area is reduced, the effect of oil temperature dependence or oil deterioration is reduced, and the space through which the oil flows is increased. This eliminates the disadvantage that a large amount of time is consumed for removing the deteriorated oil, makes it easier to maintain the machine, and facilitates the driving operation of the needle selector. This effect is effective when the pin hinge part at the middle position of the finger is operated as a fulcrum.Furthermore, in the piezoelectric method, in particular, the piezoelectric body freely moves, the finger operates at a high speed accordingly, and the needle selection speed is reduced. Faster is more effective.

[Brief description of the drawings]

1A is a sectional view of a finger showing an embodiment of the present invention, FIG. 1B is a configuration diagram of a needle selecting device showing an embodiment of the present invention,
(C) is a perspective view of a finger showing an embodiment of the present invention,

FIGS. 2A to 2D are cross-sectional views of a finger showing another embodiment of the present invention;

FIG. 3 is a cross-sectional view of a finger mounting showing an embodiment of the present invention;

FIGS. 4A and 4B are explanatory diagrams of the operation of the needle selecting device,

FIG. 5 is an explanatory view of a conventional example,

FIG. 6 is a perspective view of a needle selecting device,

7A and 7B are explanatory diagrams of a control device showing an embodiment of the present invention,

FIGS. 8A and 8B are operation explanatory diagrams of a control device showing an embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... plate, 2 ... piezoelectric element, 3 ... piezoelectric body, 4 ... finger, 5 ... lead wire, 6 ... knitting needle, 7 ... needle selection jack, 8 ··· Bat (finger bat) · 9 ··· Raised cam bat · 10 · · · Lift cam · 11 · · · Finger support portion 12 · Stopper portion · 13 · · · Opening portion of the stopper portion ..Pin hole, 15 ... Pin, 16 ... Bearing, 17 ... Finger, 18 ... Pin hole 19 ... Piezoelectric mounting part, 20 ... Groove, 21 ... Spherical body Reference numeral 22: rotating body mounting part (support point in the middle), 23: rotating body, 24: control rod, 40: opening at the rear end of the finger, 170: finger hook part, 240 ...・ Control rod hook

Continued on the front page (72) Inventor Yasuo Kodera 10-13, Minamicho, Hanno-shi, Saitama Shindengen Kogyo Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) D04B 15/00-15 / 99

Claims (1)

(57) [Scope of request for utility model registration] A finger and a driving source for the finger, wherein a pin is inserted into a pin hole provided in the finger to support the finger on a support, and the finger is driven by the finger. In the finger operating device which is driven by a source and operates the finger with the supporting point as a fulcrum to select a knitting needle of a knitting machine or control a heald bar of a loom, the pin hole of the finger is a square hole. A finger operating device, wherein a round pin is inserted into the pin hole of the square hole, or the pin hole is formed as a round hole, and the square pin is inserted into the pin hole of the round hole.