JPH0740542Y2 - Ring loom - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a circular loom
To rotate a number of weaving shuttle through the reed, wherein each weaving shuttle has a roller arranged in pairs on the top edge and bottom edge, these rollers, the upper shuttle The present invention relates to an annular loom supported on corresponding sliding surfaces of a lace and a shuttle shuttle below.

[0002]

2. Description of the Prior Art Known circular looms have inner and outer partial healds, which are arranged in two rows in a circle around the circular lobe of the loom, each partial heald being It has a large number of inner and outer healds to guide a part of the two lines of warp yarns distributed all around, and the warp yarns form a weaving shed or running shed. The main axis is designed so that it can be given up and down alternating motions in opposite directions. A weaving shuttle that rotates in a circular haul carries the weft yarn that is unwound from each bobbin, which bobbin is continuously carried into the running shed together with the shuttle.

In an effort to increase the productivity of such looms, it has been attempted to increase the rotational speed of the weaving shuttle and to increase the storage capacity of the weft yarn carried by the shuttle.

However, the additional weight and increased centrifugal forces limit the guidance of the weaving shuttle over conventional types of circular ledges, but these limitations are obviously significant wear and wear of the rollers. It has been shown to increase the risk of damage to warp threads rolled over the upper and lower shed.

[0005]

Therefore, by avoiding the deficiencies of conventional arrangements, the output capacity of the loom is increased through the faster rotation of the shuttle, allowing the use of a larger weft yarn storage. Obtaining the circular loom of the above-mentioned type is one of the problems to be solved by the present invention.

According to the present invention, the problem is that the rotating shafts of the upper and lower rollers of each pair on the weaving shuttle bound the conical surface, and the apex thereof is at least approximately the rotating shaft of the loom. Or in the region of the axis of rotation of the fabric removing device, in which case the roller is constructed in the shape of a truncated cone, the apex of which coincides with the axis of rotation of the apex of the cone, and also above or below The shuttle race's sliding surface forms an opposing surface that is equally inclined to the surface of the roller.

These means allow the best rolling movement of the roller on the sliding surface of the shuttle race, even when the centrifugal force is increased, in which case the wear on said surface is significantly reduced. Not only does it prevent the weaving shuttle from escaping from the circular path of the lure when running at low speed or at rest.

These aforementioned advantages are due to the fact that the surface of the roller is
Since it extends inside the radial square dimension of the sliding surface of the shuttle race, it can be further increased.

Furthermore, in order to create the best possible thread rolling between the rollers for driving the shuttle, at least the pressure roller is formed when the weaving shed is fully open. The line of contact between the roller on the shuttle and the pressure-opposed roller on the plate cam of the loom may be aligned with or parallel to the lower warp warp thread,
It is advantageous.

[0010] Preferably, the arrangement according to the invention further comprises the upper and lower shuttle threads, the upper and lower shuttle races when the running shed is completely open. It is desirable to have an angle of inclination that extends in the plane of the opposite surface of the fabric and that is the same as the angle of inclination of the fabric removal device.

In this way, these means allow an ideal passage of the upper and lower warp yarns at the shed, which warp yarns in this case have an ideal path to the fabric stripping device. Without deviating or deflecting from the target direction, this significantly reduces the amount of yarn breakage.

Furthermore, the pressure counter roller on the shuttle has a truncated conical shape and a larger diameter so that possible slippage between the rollers connected to the drive of the shuttle can be compensated. It is advantageous to have a shoulder on the surface of which, when rolling, comes into engagement contact with the surface of the pressure roller on the plate cam.

[0013] Features of the present invention, the circular reed is between shuttle guide rod comprises a vertical rod disposed have location apart from each other in the peripheral direction of the reed, inside of the shuttle guide rods of the vertical rod reed placed in the radially front received the centrifugal force of the weaving shuttles rotating is to so as to form a circular path for weaving shuttles.
In this case, at least three vertical rods each support a rotating weaving shuttle, and the vertical rods are rotatably supported on the upper or lower shuttle race, and It would be advantageous if the weaving shuttle had a sliding runner intended to interact with the vertical rod.

Alternatively, in order to transfer the increasing centrifugal force directly onto the loom frame, without the shuttle guide rods coming into contact and avoiding large frictional heat, one advantageous arrangement is: The weaving shuttle consists of being supported on the shuttle guide rod by means of rotating rollers running parallel to the shuttle guide rod.

Further, according to the present invention, to ensure that the rotating roller does not fall into the space between the shuttle guide rods and "tap" when the shuttle is rotating, The shuttle guide rod is bent outwardly in the circumferential direction of rotation of the circular lever, or the shuttle guide rod is arranged at a different inclination with respect to the vertical rod, or the shuttle guide rod is circular. Is intended to be arranged in the shape of an arrow in the circumferential direction of rotation of, in which case, if so,
It would be advantageous if the shuttle guide rods were flattened over their entire length on a circular path.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to FIGS. The circular loom shown in FIG. 1 is mounted in a mediocre manner on a loom stand frame 1 and also has a circular frame carrier 2 supporting a circular recess 3, a start-stop means 4 for the loom and a heddle. 6
And another frame member 5 for supporting. These healds 6 are, in a known manner, the main shaft 8 of the loom.
Are arranged in a circle around.

Moreover, a support 9 for a fabric removal device 10, which is shown only by a fabric removal roller in the figure, is supported on the loom frame 1. A textile expander 14 is also arranged within the removal device 10.

Furthermore, in the illustrated circular loom, it is also possible to see the supply roller 15 for the upper warp yarn on the right hand side and the supply roller 16 for the upper warp yarn on the left hand side. These warp yarns 7, whose path is only shown, are divided into sheets of yarn of two lines and are pulled out in a mediocre manner by a group of warp yarn spools. Are not shown in more detail in the figure.

For the formation of the weaving shed, one of these sheets of warp yarn 7 is lifted from the level of the weaving plane, via the exchange of so-called shedding movements, while the other warp yarn 7 is The seat is guided downwards, which allows
The upper sheave warp yarn sheet 7'and the lower sheave warp yarn sheet 7 "are produced. In this so-called running sheave or weaving shed, there is a bobbin of weft yarn 60. A shuttle 30 (Fig. 5) is passed over a horizontal circular path, and the weft yarn taken from the weft yarn bobbin 60 due to the circular movement of the shuttle 30 causes the weave yarn 1
3 is transferred onto the edge of the shuttle so that the weft thread of the shuttle 30 is woven into the fabric.
The tubular fabric is then removed and laid all together as a flat tubular fabric.

In order to create the aforementioned shed exchange, a large number of healds 6 are arranged in a circle around the main shaft 8 of the loom, near the outer surface of the circular rib 3. As can be seen in FIG. 1, each heald 6 consists for example of partial healds 24 and 25 formed by the components of the band. For example, an endless band 2 is provided for this purpose with a guide roller 2 rotatably supported on the upper or lower part of the frame member 5.
You will be guided on each of 2 or 23.

The partial heald 24, which is the inner constituent part of the band, and the partial heald 25, which is the outer constituent part of the band, each have thread guiding eyes, and the warp thread is passed through each of these eyes. One or the other of the sheets 7'or 7 "of the band 7'or 7". The sheet 7'of warp yarns is then produced by the creation of alternating up and down movements of the partial healds 24 and 25, which are part of the band. , 7 ″ on both systems, the aforementioned exchange of opening movements occurs.

In response to this alternating movement, the inner component (partial heald) 24 is preferably rigidly connected to a so-called shuttle slider 29 below the thread guiding eye 26. This shuttle slider 29 is
It is slidable up and down on the motion control means. Projecting from this vertical shuttle slider 29 are guide rollers 31, which are supported on a corresponding curved guide contour 32 by a plate cam 33 which rotates centrally by the main shaft 8 of the loom. ing.

To the extent mentioned above, the construction of this circular loom corresponds to the state of the art, so that a further description of such a loom seems unnecessary.

As mentioned above, a problem to be taken into account on such an annular loom is that the heavier and / or higher speed of rotation of the larger warp yarn and / or
Transport, at the same time, strain on the warp, frictional heat,
Existence in the arrangement of means for guiding and supporting the weaving shuttle 30 on the circular saw 3 as well as driving means, as achieved by the simultaneous reduction of the wear of the circular saw, the wear on the rotating weaving shuttle. .

To this end, in greater detail, FIGS.
And as it is shown in 5, in each weaving shuttle 30,
A pair of rollers 61 or 62 is provided on the top and bottom edges, the pairs of rollers 61, 62 being provided on the corresponding sliding surfaces 43 and 44 of the shuttle races 41 and 42 above and below the circular bob 3. Each is supported.

In particular, as shown in FIG. 5, the rollers 61 and 62 are arranged on the weaving shuttle 30 such that the upper roller 61 and the lower roller 62 on the weaving shuttle 30 are arranged.
The axes of rotation 61 'and 62' of the shaft bound the ideal conical surface 35, the apex of which lies at least approximately in the region of the axis of rotation of the weaving machine or the fabric removing device 10 (FIG. 1). And in this case,
The rollers 61 and 62 are configured in the shape of a truncated cone, the apex of which is coincident with the axis of rotation of the apex 13 of the cone, and the sliding surface of the upper or lower shuttle race 41 or 42. 43 or 44 is
It forms an opposing surface that is equally inclined with respect to the surface of the rollers 61 or 62.

Correspondingly, when the running shed is completely open as shown in FIG. 5, the upper sheave warp yarn sheet 7'and the lower sheave warp yarn sheet 7 "are The fabric removing device 10 (FIG. 1) extends in the plane of the opposing sliding surfaces 43 or 44 above the upper shuttle race or the lower shuttle race 41 or 42.
It is intended to have the same tilt angle with respect to.

Plate cam 33 of shuttle 30 passing through the end
One pressing roller 63 for driving by (FIG. 1)
For each rotating shuttle 30, it is intended to lie on the rear lower roller 62 in the direction of movement of the shuttle 30 rotated by the plate cam 33.
Shuttle 30 has upper and lower shuttle races 4
In order to be able to be guided without tilting between the sliding surfaces 43 and 44 of 1 and 42, and to prevent any vibration of the roller drive mechanism, the lower roller 62 at the top of the shuttle 30 can be prevented. The upper roller 61 arranged at the top, or, as in the case of the present embodiment, the lower roller 62 itself is flexibly supported by a spring 67. To this end, the lower roller 62 includes a lever arm 68 pivotally mounted on the shuttle 30.
Resting on its free end and the shuttle 30 is biased counterclockwise in FIG. 4 by said spring 67 in the form of a tension spring.

The pressure roller 63 is supported by a substantially L-shaped bracket 69 on the plate cam 33 of the loom. In this case, the shaft 63 'of the pressure roller 63 has a lower edge at the open edge. It extends almost parallel to the extension of the warp yarn sheet 7 ″, and the surface of the pressing roller 63 is
It is adapted to engage the surface of a large diameter roller shoulder 64 above the roller 62 below the shuttle 30 and to roll over it. In this case, a greater peripheral velocity is achieved on the shoulder 64 of the lower roller 62 than on the shuttle 30, which compensates for slippage during driving.

A trailing brake roller 66 is mounted on the mounting bracket 69 in the same manner as the pressure roller 63 is mounted, and similarly, the surface of the brake roller 66 is the lower roller 62. Is adapted to be in rolling contact with the surface of the shoulder 64 of the roller above the roller, in which case the brake roller 66 is slightly lower than the pressure roller 63. At the level, it contacts the lower roller 62. The brake roller 66 prevents the shuttle 30 from rotating due to its inertia regardless of the driving by the pressing roller 63.

By virtue of this special roller arrangement and driving of the rollers on the shuttle 30, it is not only possible to achieve the best possible conditions, but also the best for raising the upper and lower shed warp threads. Is also produced, which means that substantially less thread breakage can be expected in spite of a substantially higher rotational speed and a larger or heavier weft bobbin 60. To

Due to the increased rotational speed, the relatively heavier shuttle 30, now the shuttle guide rod 3 '.
Above, produces a substantially greater centrifugal force, and
The shuttle 30 is no longer sufficient on the shuttle guide rod 3'to be supported solely by the sliding runner means.

Therefore, according to the present invention, each shuttle 3
0, it is intended to provide vertical rotating rollers 70 parallel to the shuttle guide rod 3 ', but these vertical rotating rollers 70 are preferably of a slightly longer shuttle 30 as shown in FIG. Desirably located near the ends, and above the shuttle 30, the roller 70 is supported in a manner not shown here in further detail.

When the weaving shuttle 30 is rotating, the vertical rotating roller 70 is placed between the shuttle guide rods 3 '.
In order to ensure that there is no jamming and thus " knocking ", each vertical rotating roller 70 must be in supporting contact with at least one shuttle guide rod 3 '. To this end, in more detail in FIG.
The shuttle guide rod 3'rotates as shown in FIG.
Since the bent convexly in the circumferential direction, for one of each vertical rollers 70 are always shuttle guide bar 3 ',
It is touched by a part of its surface.

In order to achieve the best possible rolling conditions, the shuttle guide rod 3'is additionally flattened in order to produce the maximum possible surface of the circular path, as shown in FIG. ing.

Similar good results are achieved if the shuttle guide rod 3'is arranged inclined, as shown in more detail in FIG. Further, as shown in FIG. 7, the shuttle guide rod 3'can be arranged in the shape of an arrow.

In this connection, in order to satisfy the above-mentioned requirements, the shape of the convex bend or inclination or arrow of the shuttle guide rod 3'is at least as large as the distance between two adjacent guide rods 3 '. It is important that the size is larger than that.

From the above description, the faster rotation of the weaving shuttle and the use of the larger weft bobbin 60,
Without increasing the risk of thread wear and thread breakage ,
The guide arrangement of the weaving shuttle and its drive arrangement are hereby provided, which makes it possible to improve the performance of the loom.

In the embodiment according to FIGS. 8 and 9, each weaving shuttle 30 is also provided with rollers 132 to 131 arranged in pairs on the top and bottom edges, respectively. It is supported on a corresponding sliding surface 43 or 44 on the upper shuttle race 41 or the lower shuttle race 42 of the circular recess.

In particular, as shown in FIG. 9, the placement of the rollers on the weaving shuttle 30 is such that the shuttle 30
The axes of rotation of the upper roller 132 and the lower roller 131 of each pair of upper rollers bounds an ideally conical surface 35, the apex of which is at least approximately the axis of rotation 36 of the loom or fabric removing device 10. Of the rollers 131 and 132 in this case.
Has a truncated cone shape, and its apex coincides with the rotation axis of the apex 36 of the above-mentioned cone, and
Upper or lower shuttle race 41 or 42
Of the sliding surfaces 43 or 44 form counter-surfaces which are equally inclined with respect to the surfaces of the rollers 131 or 132.

Further, in this case, according to the present invention, when the running shed is completely opened, as shown in FIG. 9, the upper shed warp yarn 50 and the lower shed stitch warp yarn 51 are It extends into the surface of the opposing surfaces 43, 44 above the upper or lower shuttle races 41 or 42 and has the same inclination angle as the inclination angle of the fabric removing device 10.

Also, as can be seen in FIG. 9, the surfaces of the rollers 131, 132 extend inside the radial square dimensions of the sliding surfaces 43 or 44 of the shuttle races 41 or 42.

[0043] Essentially transmit more on a large centrifugal force directly circular reed 3, into it from the frame 2 of the weaving machine member (1) can be transmitted without loading the shuttle guide rods 3 ' to way, the vertical rod 45 is between the shuttle guide rods 3 'are arranged have location apart from each other in the circumferential direction of the circular reed. These vertical rods 45, so as to form a circular path that pair and weaving shuttle receiving centrifugal force weaving shuttle 30 to rotate, placed forward in the radial direction of the inner shuttle guide rods 3 'of the circular reed There is.

In this case, it is advantageous if at least three vertical bars 45 support the rotating weaving shuttle 30. As shown in FIGS. 8 and 9, the vertical rod 45 is rotatably supported by a corresponding pivot 45 'above the upper or lower shuttle race 41 or 42.

The weaving shuttle 30 now has a vertical bar 4 which can be moved by the regions of the shuttle body 34 due to centrifugal forces.
5, or each shuttle 30 may also consist of a special sliding runner 46, which runners are intended to work in concert with the vertical rod 45. ing.

[0046]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure and operation, the rotation speed of the weaving shuttle can be increased , and at the same time , the weaving shuttle can support a larger weft bobbin. And improve production capacity
It is possible to provide an annular loom that can be raised.

[Brief description of drawings]

FIG. 1 is a schematic side view of an annular loom according to the present invention.

2 is a partial cross-sectional view of the annular loom of FIG.

FIG. 3 is an enlarged cross-sectional view of the shuttle guide rod arranged according to FIG.

FIG. 4 is a front view of a circular recess of the annular loom according to FIG.

5 is a cross-sectional view of the circular loom of the annular loom according to FIG.

6 is a view showing another structural form of the shuttle guide rod of the annular loom according to FIG.

7 is a view showing another structural form of the shuttle guide rod of the annular loom according to FIG.

8 is a schematic sectional view of a modified structure of the annular loom according to FIG.

FIG. 9 is an enlarged schematic cross-sectional view of the hook and the woven shuttle in FIG.

[Explanation of symbols]

 3 Circular Oscillator 3'Shuttle Guide Rod 7 ', 7 ", 50, 51 Vertical Thread 30 Shuttle 35 Conical Surface 36 Vertex 41, 42 Shuttle Race 43, 44 Sliding Surface 45 Vertical Bar 61, 132 Upper Roller 62, 131 Lower Roller 63 pressure roller 64 shoulder 66 brake roller 70 vertical rotation roller.

Claims (6)

[Scope of utility model registration request] 1. A circular bob (3) and a plurality of weaving shuttles (3) each of which are rotatable around the inside of the circular bob (3) so as to pass through a shed in the loom.
An annular loom consisting 0) and said weaving each of the shuttle (30), upper and lower rollers of a number of truncated conical disposed in pairs on the top edge and bottom edge (61, 62) are provided and these rollers (6
1, 62) are shuttle races (41) above the shuttle (3) and shuttle races (42) below.
Corresponding truncated conical sliding surface for roller guide (4
Is supported on 3,44), their axes of rotation (61 ', 6
2 ') has at least the extension of the main shaft (8) of the loom.
Or at a point substantially in the region of the axis of rotation of the fabric removing device (10), and also by said roller (6
1,62) and the sliding surface (43, 44), the apex of the imaginary extended their truncated cone-shaped, in an annular loom being formed to coincide with a point in the said, the circular reed ( 3) is a large number of shuttle guide rods
Between (3 ') and these shuttle guide rods (3')
A large number of pendants that are circumferentially spaced from each other.
It consists of a straight bar (45) and these vertical bars (45)
The woven shuttle is the shuttle lace (41, 4).
2) When it is rotatably attached to the machine and turns,
Form a circular path of the shuttle to receive centrifugal force
Inside the circular bob, the shuttle guide rod (3 ')
An annular loom characterized by being positioned forward in the radial direction of the . Wherein the upper Symbol circular reed (3) is 'made, these shuttle guide rods (3 numerous shuttle guide rods (3)' These shut <br/> Le extends parallel to) The above weaving shuttle (30) with respect to the guide rod (3 ' )
The circular loom according to claim 1, characterized in that a vertical rotating roller (70) for supporting the weaving shuttle is provided on the weaving shuttle . Wherein the upper Symbol shuttle guide rods (3 '), characterized in that it is disposed inclined relative to the vertical according
Item 3. The circular loom according to Item 2 . 4. The upper Symbol shuttle guide rods (3 ') is, eyes circumferential sagittal and is and the arrows the circular reed (3)
The circular loom according to claim 2, wherein the circular loom is indicated . 5. A top Symbol shuttle guide rods (3 ') is, according to claim 2 which extends over their entire length, wherein the flat portion facing the radially inner side of the weaving machine is provided
The circular loom described in . That wherein the above Symbol shuttle guide rods (3 ') are curved convexly in the circumferential direction of the circular reed (3)
The annular loom according to claim 2, wherein