JPH08246285A - Opening device for weaving machine - Google Patents

Abstract

PURPOSE: To provide a camless opening device requiring an electric-powered means such as a pulse motor, a servo motor, etc., as a driving source, directly displacing wire rope length by the electric-powered means to carry out opening movement. CONSTITUTION: In a negative type opening device for providing opening movement by tension and relaxation of wire ropes 4 and 5, etc., connected to heald frames 10 and 10' suspended from spring members 2 and 3, the opening device is provided with a driving part 1 for electric-powered means M1, M2, M3... so as to displace route length of the right and the left wire ropes 4 and 5, etc., connected to the heald frames 10 and 10' at a part of an arbitrary place of the route length, the electric-powered means are synchronized with the revolution of a main shaft and opening movement of each heald frame is carried out to provide the objective opening device 100 for a weaving machine L.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for improving a depolarizing shedding device of a loom, which requires a drive source as an electric means such as a pulse motor or a servomotor, and directly displaces the wire rope length by the electric means. The present invention relates to a camless opening device for making a opening movement.

[0002]

2. Description of the Related Art Conventionally, an opening device for a heald frame has been
JP-A-59-197249 and JP-B-63-58940
As seen in the above issue, the drive source is provided by electric means. In JP-A-59-192749, each heald frame is directly driven by each linear motor disposed between the left and right guide frames. In Japanese Patent Publication No. Sho 63-58940, in which each heald frame is driven by an opening lever and a cam, each pulse motor arranged on the drive shaft is individually driven and controlled to perform an opening motion, and the opening pattern is free. It is a memory that can be controlled.

[0003]

In Japanese Patent Laid-Open No. 59-192749 of the above opening device, each linear motor arranged between the left and right frames of the heald frame and this guide frame is directly driven. Not only does the structure of the shedding device become complicated, but it is difficult to modify the shedding device of an existing loom, and the manufacturing costs are high, so the cost ratio of a relatively low-priced loom is high,
There is a problem that it cannot be put to practical use.

In Japanese Patent Publication No. 63-58940, each heald frame is driven by an opening lever and a cam, and each pulse motor arranged on its drive shaft is individually driven and controlled to perform an opening movement. Therefore, there is a problem that the mechanism of the opening device is complicated and complicated as compared with the conventional pure mechanical opening device, and this technique cannot be put to practical use. That is, since each pulse motor opens each heald frame through the intermediate driving means between the opening lever and the cam, not only the mechanism is complicated and complicated, but also the opening lever and the cam are lubricated. It is contrary to the maintenance-free orientation, such as the need to supply and maintain it.

The present invention has been made in view of the above problems and demands of the prior art. The drive source is required to be electric means such as a pulse motor and a servomotor, and the wire rope length is directly displaced by the electric means. An object of the present invention is to provide a camless opening device that causes an opening movement.

[0006]

According to a first aspect of the present invention, there is provided a reversing type opening device for giving an opening motion by stretching or loosening a wire rope or the like connected to each heald frame suspended by a spring member. A drive unit for electric means is provided to displace the path length of the left and right wire ropes connected to each heald frame at arbitrary arbitrary places, and the opening movement of each heald frame is synchronized with this electric means rotation. It is a shedding device for a loom, which is characterized by performing.

A second aspect for achieving the above object is the first aspect.
In the opening device described above, each end portion of the left and right wire ropes is supported by a plurality of guide roller rows, and this one guide roller row is supported by an eccentric shaft or the like and connected to an electric means, The weaving device of the present invention is characterized in that the wire rope causes the heald frame to make an opening movement by displacing the guide roller row by driving an eccentric shaft or the like.

A third aspect for achieving the above object is the first aspect.
In the opening device described above, one guide roller row is supported near the ends for collecting and supporting the left and right wire ropes etc. in one, and this guide roller row is supported by an eccentric shaft etc. and connected to an electric means. An opening device for a loom, wherein the wire rope causes the heald frame to perform opening movement by displacing the guide roller row by driving the eccentric shaft or the like by the electric means.

A fourth aspect for achieving the above object is the first aspect.
In the opening device described above, one guide roller row is supported near the ends for separately collecting and supporting the left and right wire ropes, and the guide roller row is supported by an eccentric shaft or the like and connected to an electric means. An opening device for a loom, wherein the wire rope causes the heald frame to perform opening movement by displacing the guide roller row by driving the eccentric shaft or the like by the electric means.

A fifth aspect for achieving the above object is the first aspect.
The opening device according to claim 1, wherein in the opening device according to claim 1, a closed loop is formed by connecting respective end portions of left and right wire ropes, and the wire ropes of the closed loop are supported by one guide roller row. Is supported by an eccentric shaft or the like and connected to electric means, and the wire rope causes the heald frame to make an opening movement by displacing the guide roller row by driving the eccentric shaft or the like by the electric means. It is a device.

A sixth aspect of the present invention that achieves the above object, is the first aspect.
In the opening device described above, each end portion of the left and right wire ropes of each heald frame is connected to each electric means directly or through a direct-acting member such as a ball screw, and the wire rope length is driven by forward and reverse driving of the electric means. The shedding device of the loom is characterized in that the heald frame is opened by displacing.

[0012]

According to the embodiments of the opening devices of the present invention, the above-mentioned heald frames are provided for the reversing type opening device which gives an opening motion by stretching and stretching a wire rope or the like connected to the respective heald frames suspended by the spring member. The electric means for directly displacing the left and right wire ropes and the like that are connected to the can precisely control the opening movement of each heald frame in synchronization with the rotation of the main shaft. With this camless opening device that directly displaces the path of the wire rope by this electric means and performs opening movement, the supply of lubricating oil and its maintenance inspection like the conventional drive method by a motor through an opening lever and a cam. There is a practical effect that maintenance-free is realized without any need. Further, the existing cam type depolarizing opening device can be easily modified.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the drawings including the technology described in each claim of the present invention will be described below. 1 to 5 are camless type depolarizing opening devices 100, 200, 300, 40 of the present invention.
It is shown as a loom L with 0,500.

First, referring to FIG. 1, the overall structure of a loom L equipped with a depolarizing shedding device 100 will be described. Behind the loom L, a large number of heald frames 10, 10 ', ... for opening and closing a warp group drawn from the warp beam are provided. The heald frames 10 and 10 'are provided with a pair of left and right suspension springs 2 ... so that they can be independently opened and closed by the drive unit 1 of the shedding device 100 arranged on the outer side of the loom.
., 3 ... are pulled up, and each wire rope, etc., is pulled down by 4 ..., 5 ... The wire ropes 4 and 5 (any suitable member such as a bundle of metal wires or a bundle of carbon fiber wires can be applied), and drive of the opening device 100 of the present invention via the guide rollers 6, 7, 8 and the like. The end portion is connected to the part 1. The tension means 11 of the drive unit 1 includes the end portions 4 of the left and right wire ropes 4, 5.
A and 5A are adjustably connected and fixed. The wire ropes 4 and 5 have a plurality of guide roller rows G.
1, G2, G3, and the guide roller row G2 for displacement is supported by the eccentric shaft 12 or the like and connected to the electric means (pulse motor, servo motor, general-purpose motor, etc.) M1.

By rotating the eccentric shaft 12 or the like by the electric means M1, the guide roller row G2 is vertically displaced to displace the route of the wire rope as shown by the solid line and the broken line, and connected to the wire ropes 4, 5. An opening movement is given to one heald frame 10 against the springs 2 and 3 which are closed.
Of course, instead of rotating the eccentric shaft 12 or the like, a lever mechanism may be adopted, and the lever mechanism may be driven by an electric means to displace the guide roller row G2.

The heald frames 10, 10 '.
.. are independent springs 2 and 3 and wire rope 4,
5 and the guide rollers 6, 7, 8 and a plurality of guide roller rows G1, G2, G3, and as shown in FIG. 6 (a), one guide roller row G2 ... The eccentric shafts 12 ... Are connected to electric means M1, M2, M3, ... Mn supported via a worm mechanism,
The opening movements are individually controlled. The opening pattern of each of the heald frames 10, 10 '... Is stored in a memory of a control device (not shown), and the motorized means M1, M2, M3 ,. And is electrically connected for control in a synchronous drive relationship.

The opening device 100 of the present invention is constructed as described above and operates as follows. Spring members 2, 3
The opening device 100 that gives an opening motion by stretching and loosening the wire ropes 4, 5, etc. connected to the respective heald frames 10, 10 '...
Motorized means M1, M2, M3, ... for directly displacing the paths of the left and right wire ropes 4, 5, etc. connected to 10 '...
It is performed by controlling Mn in a synchronous drive relationship with the motor for rotating the main shaft of the loom.

That is, each of the above-mentioned heald frames 10, 10 '
The opening pattern of ... Is drawn from the memory of the control device (not shown). Here, the heald frames 10, 10 ', ... To be opened are the electric means M1,
The guide roller row G2 is vertically displaced by the rotation of the eccentric shaft 12 that is controlled under the relationship of synchronously driving M2, M3, ... The springs 2 and 3 are displaced as indicated by broken lines, and an opening movement is given to the selected heald frame 10.

The opening device 100 according to the first embodiment is
Since the drive unit 1 is installed on the outside of the loom, maintenance is easy and the existing pure mechanical type (cam type)
There is an effect that the opening device of 1 can be easily modified and changed to the opening device 100 of the present invention.

Next, referring to FIG. 2, an opening device 200 according to a second embodiment of the present invention will be described. This opening device 200 is one in which the drive unit 1 in the first embodiment is arranged in the vicinity of an intermediate portion near the ends of the paths of the left and right wire ropes 4 and 5, and the guide rollers 6, 7 and 8 are used to form the main unit. The intermediate portion is connected to the drive unit 1 (located outside the loom) of the inventive shedding device 100. The tensioning means 11 arranged at the right end apart from the drive unit 1 connects and fixes the end portions 4A, 5A of the left and right wire ropes 4, 5 in an adjustable manner.

The wire ropes 4 and 5 are supported by a guide roller row G2 for displacement, and the guide roller row G2 is supported by the eccentric shaft 12 and the like and is connected to the electric means M1. Then, the guide roller row G2 is vertically displaced by the rotation of the eccentric shaft 12 or the like by the electric means M1 to displace the route of the wire rope as shown by the solid line and the broken line, and the springs connected to the wire ropes 4 and 5. A few
To give one heald frame 10 an opening movement. The other structure is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 200 of the present invention is constructed as described above and operates as follows. Spring members 2, 3
The opening device 200 that gives an opening motion by stretching or loosening the wire ropes 4, 5, etc. connected to the respective heald frames 10, 10 '...
Motorized means M1, M2, M3, ... which directly drive the paths of the left and right wire ropes 4, 5 and the like connected to 10 '... by the positional displacement of the guide roller row G2 as shown by the solid and broken lines.
It is performed by controlling Mn in a synchronous drive relationship with the motor for rotating the main shaft of the loom. In addition, the detailed operation is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 200 according to the second embodiment is also
Since the drive unit 1 is installed near the outside of the loom, there is an effect that maintenance is easy and modification is easy.

Next, an opening device 300 according to the third embodiment of the present invention will be described with reference to FIG. In this opening device 300, the drive unit 1 in the first embodiment is provided with the heald frame 10,
It is arranged directly below 10 '. The left and right wire ropes 4, 5 have their ends crossed in an X shape supported by the left and right tension means 11, 11, and one guide roller row G2 for displacing the drive unit 1 is provided near these ends. It is accepted. The guide roller row G2 is connected to the electric means M1 supported by the eccentric shaft 12, and the guide roller row G2 is vertically displaced by the rotation of the eccentric shaft or the like by the electric means, whereby the wire rope path is shown by solid lines and broken lines. Thus, the heald frame 10 is opened against the springs 2 and 3 connected to the wire ropes 4 and 5. The other structure is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 300 of the present invention is constructed as described above and operates as follows. Spring members 2, 3
The opening device 300 that gives an opening motion by stretching and stretching the wire ropes 4, 5 and the like connected to the respective heald frames 10, 10 '...
Motorized means M1, M2, M3, ... which directly drive the paths of the left and right wire ropes 4, 5 and the like connected to 10 '... by the positional displacement of the guide roller row G2 as shown by the solid and broken lines.
It is performed by controlling Mn in a synchronous drive relationship with the motor for rotating the main shaft of the loom. In addition, the detailed operation is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 300 according to the third embodiment is also
Since the drive unit 1 is installed in a wide space right under the heald frame, there is an effect that maintenance is easy and modification is easy.

Next, referring to FIG. 4, an opening device 400 according to a fourth embodiment of the present invention will be described. In this opening device 400, the drive unit 1 in the first embodiment is also used in the heald frame 10,
It is arranged directly below 10 '. Then, the left and right wire ropes 4 and 5 are gathered into one and connected to a closed loop. The end of this closed loop is supported by one guide roller row G2 for displacing the drive unit 1. The guide roller row G2 is connected to the electric means M1 supported by the eccentric shaft 12, and the guide roller row G2 is vertically displaced by the rotation of the eccentric shaft or the like by the electric means, whereby the route of the wire rope is shown by a solid line and a broken line. Thus, an opening motion is given to one heald frame 10 against the springs 2 and 3 connected to the wire ropes 4 and 5. The other structure is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 400 of the present invention is constructed as described above and operates as follows. Spring members 2, 3
The opening device 400 that gives an opening movement by stretching or loosening the wire ropes 4, 5, etc. connected to the respective heald frames 10, 10 '...
10 '... Collected on one of the left and right wire ropes 4, 5 etc., the end of the closed loop is guided by the guide roller row G2.
This is performed by controlling the electric means M1 (M2, M3, ... Mn) that is directly driven by the position displacement of the above as shown by the solid line and the broken line in the relationship of being synchronously driven with the motor for rotating the main shaft of the loom. In addition, the detailed operation is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 400 according to the fourth embodiment is also
Since the drive unit 1 is installed in a wide space right under the heald frame, there is an effect that maintenance is easy and modification is easy.

Next, referring to FIG. 5, an opening device 500 according to a fifth embodiment of the present invention will be described. This shedding device 500 is also one in which the drive unit 1 in the first embodiment is arranged on the outer side of the loom. And the left and right wire ropes 4, 5 are
The end portions 4A and 5A are directly connected to the pulley 20 of the electric means M1.
It is connected to. Then, the wire rope length is displaced by forward / reverse driving of the electric means to cause the heald frame to open so that a rope rope pulling and returning operation is performed by a very simplified mechanism. An opening movement is given to one heald frame 10 against the springs 2 and 3 connected to 5 and 5. The other structure is the same as that of the opening device 100 in the first embodiment, and the description thereof will be omitted.

The opening device 500 of the present invention is constructed as described above and operates as follows. Spring members 2, 3
The opening device 500 that gives an opening motion by stretching the wire ropes 4, 5, etc. connected to the respective heald frames 10, 10 '...
As shown in FIG. 6B, the left and right wire ropes 4, 5 and the like connected to 10 '... are directly driven by electric means M1 (M2, M3 ,. It is performed by controlling forward and reverse rotations in a relationship of being driven synchronously with the motor for driving. In addition, the detailed operation is the same as the first
Since it is the same as the opening device 100 in the embodiment, its description is omitted.

The opening device 500 according to the fifth embodiment is
Since the drive unit 1 is installed outside the loom, maintenance is easy, and the existing pure mechanical (cam type) shedding device can be easily modified or changed to the shedding device 500 of the present invention. effective. Further, the electric means M1 (M2, M
3, ... Mn) is directly driven to drive the end portions of the wire ropes 4, 5, etc., so that an intermediate member is not required and the operation can be performed with a very simple structure.

The opening device 500 according to the fifth embodiment described above.
In the connection between the wire ropes 4 and 5 and the electric means M1, a rack and pinion is used instead of the pulley 20,
A worm mechanism may be interposed. Further, as shown in FIG. 6 (c), the ends of the wire ropes 4, 5 and the like are connected to one end of the ball screw 21, and the nut 22 screwed to this is directly or by the gear trains 23, 24 by the electric means M1. It may be connected to a driving linear member. According to the linear motion member such as the ball screw, a large traction force can be obtained with a simple structure and the high speed response is excellent.

[0034]

As described above, according to the opening device of the present invention, each of the healds described above is provided with respect to the reversing-type opening device that gives an opening motion by stretching or stretching a wire rope or the like connected to each heald frame suspended by a spring member. By electric means that directly displaces the route such as the left and right wire ropes connected to the frame,
There is an effect that the opening movement of each heald frame can be finely and freely controlled in synchronization with the rotation of the main shaft. The structure is extremely simplified by the camless opening device that directly displaces the wire rope by the electric means to open the wire rope, and the lubricating oil is supplied as in the conventional driving method by the motor through the opening lever and the cam. There is a practical effect that maintenance-free is realized without requiring any maintenance or inspection. Further, the existing cam type depolarizing opening device can be easily and inexpensively modified.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of an opening device of the present invention.

FIG. 2 is a front view showing a second embodiment of the opening device of the present invention.

FIG. 3 is a front view showing a third embodiment of the opening device of the present invention.

FIG. 4 is a front view showing a fourth embodiment of the opening device of the present invention.

FIG. 5 is a front view showing a fifth embodiment of the opening device of the present invention.

FIG. 6 is a side view showing a drive unit by each electric means applied to each opening device of the present invention.

[Explanation of symbols]

100, 200, 300, 400, 500
Opening device 1
Drive unit 4, 5
Wire rope 10,10 '
Held frame 2,3
Springs 6, 7, 8
Guide roller 12
Eccentric shaft 20
Pulley 21
Ball screw 22
Natsu G1, G2, G3
Guide roller row M1, M2 ...
Electric means L
loom

Claims (6)

[Claims] 1. In a depolarizing opening device that gives an opening motion by stretching and relaxing a wire rope or the like connected to each heald frame suspended by a spring member, the path length of the left and right wire ropes or the like connected to each heald frame. A loom shedding device for a loom, which is provided with a drive unit of an electric means for displacing the electric motor at any appropriate place, and performs the shedding motion of each heald frame in synchronization with the rotation of the main shaft. 2. The opening device according to claim 1, wherein each end portion of the left and right wire ropes and the like is supported by a plurality of guide roller rows, and the one guide roller row is supported by an eccentric shaft or the like and electrically driven. An opening device for a loom, wherein the wire rope opens the heald frame by displacing the guide roller row by driving the eccentric shaft or the like by the electric means. 3. The opening device according to claim 1, wherein the left and right wire ropes and the like are gathered together in one and near one end thereof.
It is supported by two guide roller rows, and this guide roller row is supported by an eccentric shaft or the like and connected to an electric means, and the guide roller row is displaced by driving the eccentric shaft or the like by the electric means to move the wire rope. A shedding device for a loom characterized by performing shedding motion of a heald frame. 4. The opening device according to claim 1, wherein one guide roller row is supported near the ends where the left and right wire ropes are separately collected and supported, and the guide roller row is supported by an eccentric shaft or the like. A shedding device for a loom, which is connected to an electric means and displaces a guide roller row by driving an eccentric shaft or the like by the electric means to cause a wire rope to open the heald frame. 5. The opening device according to claim 1, wherein a left and right wire ropes and other end portions are connected to form a closed loop,
This closed-loop wire rope is supported by one guide roller row, and this guide roller row is supported by an eccentric shaft or the like and connected to electric means, and the guide roller row is driven by the eccentric shaft or the like driven by the electric means. An opening device for a loom, wherein the wire rope causes the heald frame to make an opening motion by being displaced. 6. The opening device according to claim 1, wherein each end of the left and right wire ropes of each heald frame is connected to each electric means directly or through a linear moving member such as a ball screw, A shedding device for a loom characterized by opening and closing the heald frame by displacing the wire rope length by forward and reverse driving.