JPH0625385U - Ring loom - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an annular loom having a large output capacity. A plurality of shuttles 30 that can rotate in a circular bob 3 of an annular loom are provided, and each shuttle 30 has a plurality of truncated cone-shaped upper and lower parts arranged in pairs at its top and bottom edges. Lower rollers 61,62 are provided which are supported by corresponding truncated conical sliding surfaces 43,44 above and below the shuttle 3 and on the shut loose 41,42. The axes of rotation 61 ', 62' of the rollers 61, 62 intersect at a point in the region of the axis of rotation of the weaving machine's main axis or the fabric removing device 10, and also the rollers 61, 62 and the sliding surface 43. , 44 are formed such that the vertices of their truncated cones coincide with this certain point.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a number of weaving shuttles rotate within the bob, where each machine shuttle has a pair of rollers arranged on its top and bottom edges. The la is supported on corresponding sliding surfaces on the upper shuttle race or on the lower shuttle race, and an annular ring is provided on each weaving shuttle with a pressing roller rotated by the loom cam of the loom. It concerns a loom.

[0002]

[Prior art]

 Previously 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, with each partial heald all around. It has a large number of inner and outer healds to guide a portion of the two distributed warp threads, which are reversed by the spindle to form a weaving or running shed. It is designed so that it can be given up-and-down alternating movements in the direction. Woven shuttles that rotate in a circular haul carry the weft yarns that are unwound from each bobbin, which 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 volume of the weft yarn carried by the shuttle.

However, the added weight and increased centrifugal forces limit the guidance of the weaving shuttle over conventional types of circular ostens, but these limitations are clearly notable for significant roller wear. And the increased risk of damage to warp threads rolled over the upper and lower shed.

[0005]

[Problems to be solved by the device]

 Therefore, by avoiding the deficiencies of conventional arrangements, the output capacity of the loom is increased through the faster rotation of the shuttle, resulting in an annular loom of the type mentioned above, which allows the utilization of a larger weft yarn storage. That 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 each pair of upper and lower rollers on the weaving shuttle bound a conical surface, the apex of which is at least approximately the loom. In the region of the axis of rotation or of the axis of rotation of the fabric removing device, in which case the roller is configured in the form of a truncated cone, the apex of which coincides with the axis of rotation of the apex of the cone, and This is accomplished by causing the sliding surfaces of the upper and lower shuttle races to form opposing surfaces that are equally inclined with respect to the surface of the roller.

These measures 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 this prevent the weaving shuttle from escaping from the circular path of the lure when running at low speed or at rest.

These aforementioned advantages can be further increased since the surface of the roller extends inside the radial square dimension of the sliding surface of the shuttle race.

Furthermore, in order to create the best possible situation in which the yarn rolls between the rollers for driving the shuttle, at least the pressure roller is formed when the weaving shed is completely open. Advantageously, the contact line between the roller above the shuttle and the pressure counter roller above the plate cam of the loom extends in alignment with or parallel to the lower shed warp.

[0010] Preferably, the arrangement according to the invention further comprises an upper sheave warp thread and a lower sheave warp thread when the running shed is fully open. It is desirable to have an angle of inclination that is in-plane with the opposite surface of the upper part of the fabric and that is the same as the angle of inclination of the fabric removal device.

[0011] Thus, these means allow an ideal passage of the upper and lower shed warp threads, which in this case are crushed or otherwise woven. Without deviating from the ideal direction of the path towards the stripping device, this reduces the thread breakage quite significantly.

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

Another development according to the invention consists in that the circular bosses consist of vertical bars which are arranged between the shuttle guide rods and spaced from one another in the peripheral direction of the boss, said vertical rods being inside the boss. It is located radially at the front of the upper shuttle guide rod to absorb the centrifugal force on the rotating weaving shuttle and form a circular path to the weaving shuttle. In this case, at least three vertical rods each support a rotating weaving shuttle, and the vertical rods are freely rotatably supported on the upper or lower shuttle race, and It would be advantageous if each weaving shuttle had a sliding runner intended to interact with the vertical rod.

Alternatively, one advantageous arrangement is to transfer the increasing centrifugal force directly over the loom of the loom without the shuttle guide rods coming into contact and avoiding large frictional heat. The woven shuttle is supported on the shuttle guide rod by a rotating roller that runs parallel to the shuttle guide rod.

Further, according to the present invention, in order to ensure that the rotating roller does not fall into the space between the shuttle guide rods and does not "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. It is intended to be arranged in the shape of an arrow in the direction of the circumference of rotation of the reed, in which case the shuttle guide rods should flatten over their entire length on a circular path. If done, it will be advantageous.

[0016]

【Example】

 Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 9 of the accompanying drawings showing an embodiment thereof. The circular loom shown in FIG. 1 is mounted in a mediocre manner on a loom base frame 1 and also has a circular frame carrier 2 supporting a circular recess 3 and a start / stop means 4 for the loom. It consists of another frame member 5 for supporting the heald 6. These healds 6 are arranged in a circular manner around the main shaft 8 of the loom in a known manner.

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. The spool is not shown in more detail in the figure.

For the formation of the weaving shed, one of these sheets of warp yarns 7 is lifted from the level of the weaving plane through the exchange of so-called shedding movements, while the other warp yarn 7 is Is guided downwards, so that a sheet 7'of warp yarns in the upper shed and a sheet 7 "of warp yarns in the lower shed are produced. In this so-called running or weaving shed. , A shuttle 30 having a bobbin of weft thread 60 (FIG. 5) is passed over a horizontal circular path because of the circular movement of the shuttle 30, the weft thread taken up from the weft thread bobbin 60 is , Is transferred onto the edge of the tubular fabric 13, so that the weft thread of this shuttle 30 is woven into the fabric, which is then removed and laid flat. As a tubular fabric Lie on.

In order to produce the aforementioned shed exchange, a large number of healds 6 are arranged in a circle around the main shaft 8 of the loom and near the outer surface of the circular bob 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 is guided for this purpose on a respective guide roller 22 or 23 which is rotatably supported on the upper or lower part of the frame member 5.

The partial healds 24, which are the inner constituent parts of the band, and the partial healds 25, which are the outer constituent parts of the band, each have a thread guiding eye, and the warp thread is passed through each of these eyes. One or the other of the sheets 7'or 7 "of the drawing is pulled, from which the sheets of warp yarn are produced by the generation of alternating up and down movements of the partial healds 24 and 25, which are part of the band, in opposite directions. The above mentioned exchange of opening movements occurs on both 7'and 7 "systems.

In response to this alternating movement, preferably, the inner component portion (partial heald) 24 is firmly connected to a so-called shuttle slider 29 below the yarn guiding eye 26. The shuttle slider 29 is slidable up and down on the motion control means. Extending from this vertical shuttle slider 29 is a guide roller 31, which is supported on a corresponding curved guide contour 32 by means of a plate cam 33 which rotates centrally by the main shaft 8 of the loom. Has been done.

[0023] To the extent mentioned above, the construction of this annular loom corresponds to the state of the art, so that a further description of such a loom may be unnecessary. .

As mentioned above, a problem to be taken into account on such an annular loom is that the higher rotational speed and / or the transport of the heavier or larger warp yarns simultaneously with the warp yarns The means for guiding and supporting and driving the weaving shuttle 30 on the circular saw 3 as achieved by the simultaneous reduction of strain, frictional heat, wear of the circular weaving, wear on the rotating weaving shuttle. It exists in the arrangement.

To this end, in more detail, as shown in FIGS. 2, 4 and 5, each weaving shuttle 30 is provided with a pair of rollers 61 or 62 on its top and bottom edges. These rollers 61, 62 are supported on a corresponding sliding surface 43 or 44 on the shuttle race 41 above or below the shuttle race 41 above or below the shuttle race 42 of the circular recess 3. ing.

In particular, as shown in FIG. 5, the rollers 61, 62 are arranged on the weaving shuttle 30 such that the rotation shafts 61 ′ and 62 ′ of the upper roller 61 and the lower roller 62 on the weaving shuttle 30 are It demarcates an idealized conical surface 35, the apex of which lies at least approximately in the region of the axis of rotation of the loom or fabric removing device 10 (FIG. 1), in which case The rollers 61 and 62 are formed in the shape of a truncated cone, the apex of which coincides with the rotation axis of the apex 13 of the above-mentioned cone, and the upper or lower shuttle race 41 or 42 of the shuttle race 41 or 42. The sliding surfaces 43 or 44 form opposing surfaces which are 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 Extending in the plane of the opposing sliding surfaces 43 or 44 above the upper shuttle race or the lower shuttle race 41 or 42 and having the same inclination angle as for the fabric removing device 10 (FIG. 1). Is intended.

In order to drive the shuttle 30 that passes through the opening by the plate cam 33 (FIG. 1), one pressing roller 63 is rotated by the plate cam 33 in each moving direction of the shuttle 30 for each rotating shuttle 30. It is intended to lie on the rear lower roller 62. In order that the shuttle 30 can be guided without tilting between the sliding surfaces 43 and 44 of the upper and lower shuttle races 41 and 42, and to prevent any vibration of the roller drive mechanism, The upper roller 61, which is arranged above the lower roller 62 on top of the shuttle 30, or, as in the case of the present embodiment, the lower roller 62 itself is flexibly supported by a spring 67. . For this purpose, the lower roller 62 rests on the free end of a lever arm 68 pivotally mounted on the shuttle 30, and the shuttle 30 in FIG. 4 has said spring in the form of a tension spring. It is biased counterclockwise by 67.

The pressing roller 63 is supported by a substantially L-shaped bracket 69 on the plate cam 33 of the loom, and in this case, the shaft 63 ′ of the pressing roller 63 is at the open shed. It extends substantially parallel to the extension of the lower shed warp sheet 7 ″, and the surface of the pressing roller 63 is the surface of the shoulder 64 of the large diameter roller above the roller 62 below the shuttle 30. Is adapted to engage and roll over the upper surface of the shoulder 62 of the lower roller 62 than the upper peripheral speed of the shuttle 30. Achieved, which compensates for slippage during drive.

A trailing brake roller 66 is mounted on the mounting bracket 69 in the same manner as the pressure roller 63 is mounted, and likewise, the surface of the brake roller 66 is the lower roller 62. It is adapted to make rolling contact with and roll over 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, not only is it possible to achieve the best possible conditions, but also the upper and lower shed warp threads are pulled up. The best condition is also produced, but this is expected to result in substantially less thread breakage despite substantially higher rotational speeds and larger or heavier weft bobbins 60. To be able to.

Due to the increased speed of rotation, the relatively heavier shuttle 30 now produces a substantially greater centrifugal force on the shuttle guide rod 3 ′, and therefore the shuttle 30 is shut. On the guide rod 3 ', it is no longer sufficient to be simply supported by the sliding runner means.

Therefore, according to the present invention, it is intended that each shuttle 30 be provided with a vertical rotating roller 70 parallel to the shuttle guide rod 3 ′, but these vertical rotating rollers 70 are Preferably, it is placed near the end of a rather long shuttle 30, as shown in FIG. 2, and on top of the shuttle 30, rollers 70 are shown here in more detail. Not favored in style.

As the weaving shuttle 30 is rotating, each vertical rotation roller 70 ensures that the vertical rotation roller 70 does not fall between the shuttle guide rods 3 ′, thereby causing “tapping”. The roller 70 must be in supporting contact with at least one shuttle guide rod 3 '. For this purpose, as shown in more detail in FIG. 4, the shuttle guide rod 3 ′ is convexly outward in the circumferential direction of rotation so that each vertical rotary roller 70 is always of the shuttle guide rod 3 ′. For one, it is bent so that it lies down by part of its surface.

In order to achieve the best possible rolling conditions, the shuttle guide rods 3 ′ are additionally flattened in order to produce the maximum possible surface of the circular path, as shown in FIG. Has been.

A similar good result is 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 foregoing, it is seen that the increased loom performance is increased through the faster rotation of the weaving shuttle and the utilization of the larger weft bobbin 60 at the risk of increased yarn wear and more yarn breakage. Unexpectedly, the guide and drive arrangements of the weaving shuttle are made possible to enable.

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. Are supported on corresponding sliding surfaces 43 or 44 on the upper shuttle race 41 or the lower shuttle race 42 of the circular jaw.

In particular, as shown in FIG. 9, the placement of the rollers on the weaving shuttle 30 is such that the rotation axes of the upper roller 132 and the lower roller 131 of each pair of rollers on the shuttle 30 are conical. It borders the surface 35 of the shape, the apex of which lies at least approximately in the region of the axis of rotation 36 of the weaving machine or the fabric removing device 10, in which case the rollers 131, 132 are It is configured in the shape of a conical cone, the apex of which coincides with the axis of rotation of the apex 36 of the cone, and the sliding surfaces 43 or 44 of the upper or lower shuttle races 41 or 42 and the rollers 131 or The opposite surface is formed to be equally inclined with respect to the surface of 132.

Further, in this case, according to the present invention, when the running shed is fully opened, as shown in FIG. 9, the upper shed warp yarn 50 and the lower shed stitch warp yarn 51 are , The upper or lower shuttle race 41 or 42 extends into the plane of the opposing surfaces 43, 44 and has the same tilt angle as that of the fabric removing device 10.

Also, as can be seen in FIG. 9, the surface of the rollers 131, 132 extends inside the radial dimension of the sliding surface 43 or 44 of the shuttle race 41 or 42 in the radial direction. .

It is now possible to essentially transfer a greater centrifugal force directly onto the circular bob 3 from which the shuttle guide rod 3 ′ is loaded onto the frame 2 part of the loom (FIG. 1). For transmission to the other, vertical rods 45 are arranged between the shuttle guide rods 3 ', spaced from one another in the peripheral direction of the lobe, said vertical rods 45 being located on the inner side of the lobe. Radially placed on the front of the upper shuttle guide rod 3 ', it is intended to absorb the centrifugal forces on the rotating weaving shuttle 30 and to form a circular path for the weaving shuttle.

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 'on the upper or lower shuttle race 41 or 42.

Due to centrifugal forces, the woven shuttle 30 can now lie against the vertical rod 45 by each region of the shuttle body 34, or each shuttle 30 comprises a special sliding runner 46. However, these runners are intended to work in unison with the vertical rod 45.

[0046]

[Effect of device]

 Since the present invention has the above-described structure and operation, the rotation speed of the weaving shuttle is further increased, and at the same time, the weaving shuttle supports the larger weft bobbin to increase the output capacity. It is possible to provide an annular loom that is capable of doing so.

[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 (12)

[Scope of utility model registration request] 1. In an annular loom, a circular lobe (3) and a number of weaving shuttles each rotatable around the inside of the circular lobe (3) so as to pass through a shed in the loom. (30), each of the weaving shuttles (30) is a plurality of truncated cone-shaped upper and lower rollers arranged in pairs at the top and bottom edges of the weaving shuttle (30). (61, 62) are provided, and the rollers (61, 62) are provided with corresponding truncated cones on the upper shuttle race (41) or the lower shuttle race (42) of the circular recess (3). Are adapted to be supported on a sliding surface (43,44) in the shape of a roller, and the rollers (61,62) of each of the weaving shuttles (30) have their axes of rotation (61 ', 6).
2 ') intersects at least at some point approximately in the region of the main axis (8) of the loom or the axis of rotation of the fabric removing device (10), and the rollers (61, 62) and the sliding surface The circular loom (43,44) is characterized in that the ideal vertices of the truncated cones are formed so as to coincide with certain points. 2. A rotatable plate cam (33) is provided, said plate cam (33) being a lower roller (61) of said rollers (61, 62) of each of said weaving shuttles (30). 62) is provided with a pressing roller (63) that is drivingly engaged with the pressing roller (63), and when the plate cam (33) rotates, the pressing roller (63) causes the weaving shuttle (30) to move to the circular recess (3 ) And through the opening, and when the opening is completely open, at least the pressing roller (6
2. An annular loom according to claim 1, wherein the contact line between each of the points (3) and the lower roller (62) associated therewith is aligned with or parallel to the lower shed warp thread. 3. The upper and lower sliding surfaces (43,44)
3. The circular loom according to claim 1 or 2, wherein, when the shed is completely open, they extend in the planes of the upper and lower shed warp threads, respectively. 4. A larger diameter shoulder (64) in which the lower roller (62) of each of the weaving shuttles (30) is drivingly engaged by each of the pressure rollers (63).
The annular loom according to claim 2, further comprising: 5. The plate cam (33) further engages at its front part with respect to the shoulder (64) of each of the pressure rollers (63) with respect to the direction of movement of the cooperating weaving shuttle (30). Brake rollers (66) are provided respectively, and the brake rollers (66) have their shafts (66 ′) lower than the shafts (63 ′) of the pressing rollers (63). Cam (3
The circular loom according to claim 4, which is rotatably mounted on 3). 6. The peripheral surface of each roller (61, 62) of each weaving shuttle (30) extends radially within the dimensions of the associated sliding surface (43, 44). Item 5. The circular loom according to any one of Items 1 to 5. 7. The circular hook (3) is provided with a plurality of shuttle guide rods (3 ') and a plurality of shuttle guide rods (3') spaced from each other in the peripheral direction of the circular hook (3). It consists of a number of vertical rods (45) arranged in a staggered manner, said vertical rods (45) being located on the inside of said circular recess (3) and in front of said shuttle guide rods (3 '). The weaving shuttle (30) pivots and is rotatably mounted on the shuttle races (41, 42) and bounds the circular path of the weaving shuttle (30). The annular loom according to any one of claims 1 to 6, which receives the centrifugal force of the weaving shuttle (30). 8. The circular hook (3) comprises a number of shuttle guide rods (3 '), and the weaving shuttle (30) is parallel to the shuttle guide rods (3'). 7. An annular loom according to claim 1, further comprising a vertical rotating roller (70) extending and supporting the weaving shuttle (30) with respect to the shuttle guide rod (3 '). 9. An annular loom according to claim 8, wherein the shuttle guide rods (3 ') are arranged inclined with respect to the vertical. 10. An annular loom according to claim 8, wherein the shuttle guide rod (3 ') is sagittal and faces in the peripheral direction of the circular recess (3). 11. An annular loom according to claim 8, wherein said shuttle guide rods (3 ') are provided with flats which extend over their entire sides and which face radially inward of the loom. . 12. The annular loom according to claim 8, wherein the shuttle guide rod (3 ') is curved in a convex shape in the peripheral direction of the circular recess (3).