SU681127A1 - Automatic loom - Google Patents

Description

The invention relates to the field of Textile Machinery and the field of weaving looms for the manufacture of artistic products, namely, woven-made fabrics. A special feature of machine tools for woven-plating products is the possibility of forming in any place a pattern or ornament created on a fabric not by drinking, but in process. A handheld machine for the manufacture of woven-fenced products is known, which is controlled by a four pedal f "i to form the background and recessive sheds 1. All technological operations on the machine are carried out manually, as a result of which the work is very laborious and low productivity. Automatic weaving a machine containing a mechanism for yawning; including means attached to the shafts for directing the main threads and kinematically connected to the criminal shaft by means of cams placed on it, laying mechanisms and gear, weft threads 2, This weaving machine is the closest to the invention by its technical essence to the achieved result. However, it is not possible to obtain an additional recessive shed to obtain a reboric pattern. The aim of the invention is the expansion of technological capabilities through the development of reusable products. This is achieved by the fact that the weaving machine additionally has a mechanism for forming a refill throat that controls the main threads of one branch of the throat in accordance with the interlacing pattern and is kinematically connected to the criminal shaft, with each means for guiding the main threads of the mechanism for forming the re-opening throat in as articulated brackets. FIG. 1 shows a schematic loom; in fig. 2 - remizka additional mechanism; in fig. 3 shows section A-A in FIG. 2. The automatic weaving machine contains a shedding mechanism having a simple shaft 1, on which the eccentrics 2 and 3 are fixed,

in contact with the levers 4 and 3, respectively, one ends of KOTOpHxf are connected with shafts b and 7, interacting with each other through a flexible connection, covering block 8. ria, the gear wheel 1 is fixed to the simple shaft 1, which interacts with another gear wheel 10, fixed on the shaft 11 of an additional mechanism for the formation of a recurring shed.

This mechanism also includes the cams 12 and 13, which are in contact with the levers 14 and 15, respectively, whose ends are associated with overblown shafts 16 and 17, interacting with each other through a flexible link covering block 18. The main threads 19 and 20 wind up with 21, go around the rock 22, pass through the eyes 23 shafts b and 7, by means of which the background shed with the angle of ° C is formed

In each of the two shafts 6 and 7, 50% of the warp threads are slid. The plug is fine, i.e. all the odd yarns were dug into a shim b, and the even ones were worn 7. We use these shafts to create a plain weave - the background of the product.

In the articulated brackets of 24 pre-selection shafts 16 and 17, 50% of the yarns were penetrated only from hem 6, i.e. 25% of the entire warp threads are threaded into each of the over-bent shims 16 and 17. Here, too, all the odd threads are snapped into the shackles of shims 17, and the even ones are shackled into the shims of the shims 16.

Further, the main threads 19 and 20 pass through the hip teeth 25 and descend from the edge of the fabric where the formation of tissue takes place, i.e. where the main threads are interlaced with reborn 26 and background 27 weft threads. After that, the fabric bends around the breast 28 and places itself on the product roller 29.

A reversible shed with an angle p in which the reborna thread 26 is laid is formed by the main threads passing through heald 6 and reformer hemming 16.

. -The articulated brackets of the re-edge shirts are capable of lifting a certain part of the main threads of the main peretat over the background shed, forming an additional shed for the re-boron pattern. The peculiarity of the articulation of the brackets of re-made shafts is that the upper bracket is larger than the lower one, which ensures the free placement of the branches of the shed pharynx for any application of re-selection shafts. When lowering shafts 16 and 17, the staples release the same part of the main threads of the main weave and freely pass through all the main threads down.

Automatic weaving machine works as follows.

As the propeller shaft 1 rotates, the eccentric 3 of the main shedding mechanism deflects the lever 5 down, which carries the shaft 7 along, and the shaft 6 connected by a flexible link through block 8 rises. This forms a background pharynx with an angle of ° C. The shuttle runs the background weft thread 27.

At this moment, the cam 13 of the additional shedding mechanism, with its protrusion, deflects the lever down and entrains the shaft 17, and the shaft 16 connected by a flexible link through the block 18 rises, thus forming an additional bulkhead with an angle fi.

As a result of the fact that the upper branch of the main thread consists of only 25% of the main thread, each fourth main thread is raised when the re-opening shed is formed. This period of operation is referred to as the first brute force.

 In the re-opening shed with angle b in place, due to the sketch of the product, hand-fed weft thread 26, which is five times thicker than the background thread, is manually inserted. This ensures color clarity and relief of the re-selection pattern.

When entering weft weft threads, the weaver moves from the pattern to the pattern on the moving chair.

After turning the main protrusion shaft 1 90 ° counterclockwise, the eccentrics 2 and 3 install levers 4 and 5 and shafts 6 and 7 into one horizontal plane, the cam 13 of the additional selection mechanism rotates 45 clockwise, partially lifting the lever 15 and eliminating the re-selection , pharynx with angle p. At the moment when all the main threads will be in the same plane, the thigh 25 of the background weft 27 and the re-weft 26 will break.

With the subsequent turning of the prostatic shaft 1 by 90 ° (), the eccentric 2 deflects the lever 4 downward, the shim 6 lowers and the shim 7 rises. A second background pharynx is formed with an angle of ° C to which the shuttle runs a background weft thread. The cams of the additional mechanism are rotated 45 ° (90 °), while aligning the levers 14 and 15 in one horizontal plane and setting the re-bleed shafts to the neutral position

With a further rotation of the shaft by 1 on 90®, the eccentrics set the levers 4 and 5 into one horizontal plane, and the shafts 6 and 7 are flush with the warp threads. The cams 12 and 13 turn another 45 ° (135) and the levers 14 and 15 are horizontal. At this point, the second surf of the background weft yarn 27 hip 2 5 occurs.

Upon further rotation of the shaft 1 by 90 (360), the eccentric 3 retracts the lever 5, heddle 7 lowers and heddle 6 rises to form a background jawl, into which the shuttle will lay the third background weft thread. The cam 12, turning another 45 ° (), pulls down the lever 14, which is not behind the shim 16, while the shim 17 rises, forming the upper branch of the recessive shed with an angle p (the shed angle p will be smaller due to the removal of the shim 17 from the edge of the surf).

The weaver manually makes a re-folding end of the weft thread, turning it in the opposite direction. An extra loop is formed (this recurring shed is called the second prostrate).

After the next quarter turn of the Louse 1, the eccentrics 2 and 3 are rotated 90 ° (450 °), the levers 4 and 5 are horizontal, and the shims 6 and 7 are flush.

The cams 12 and 13 rotate 45 ° (225 °) clockwise, while the cam 12 partially retracts the lever 14, setting the shims 16 and 17 at the same level. At this moment, the surf of the third weft yarn 27 and the retaining end of the dummy yarn 26 to the edge of the fabric by the bird 25 occurs.

With the subsequent rotation of the shaft 1 by 90 (a), the eccentric 2 pulls down the lever 4 and there is no shaft 6 behind it. Remizka 7 rises. A shuttle forms a fourth weft background thread into the formed shed.

The re-shafts of this route are at the same level, TEIK as the 1JI shaft will turn another 45 (270 °) and the main threads freely pass through the upper brackets.

With a further rotation of the criminal shaft 1 by 90 ° (BSO), the eccentrics 2 and 3 combine the levers 4 and S in a horizontal position, the shafts 6 and 7 turn out to be at the same level, and the main threads in the same plane.

The cams 12 and 13, turning 45 ° (), so);: e combine the levers 14 and 15 in a horizontal position, the shafts 16 and .17 are at the same level, through which the main threads freely pass.

At this point, the fourth weft thread is surfing.

With further rotation of the shaft 1 n 90 ° (720 °) and, accordingly, shaft 11 by 45 ° (30 °), the process is repeated.

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The formation of a hinge loop is carried out with eccentrics 2 and 3 on.

One-sided brute force with two treads is formed as follows.

5 Rises 1/4 of the main thread (the first stitch). The re-folding end of the weft yarn is five times thicker than that of the background thread. Two background weft yarns are laid and a second recessive shed (second tread) is formed. The middle part of the main threads of the three lowered at the first bulkhead is raised.

In the second re-opening shed, the re-closure end of the weft yarn is laid in the opposite direction (rotated) and a loop is formed. The two subsequent pads of the background weft yarn are fixed in the fabric with a folding edge, completing the formation of the element of the batch drawing. Mening the color of the weft yarns, you can create an appropriate overall background of bridging weave on the fabric.

With the introduction of such weaving machines into the production, labor productivity has significantly increased.

Machines make weft surf 30 threads with constant effort, create

given duck density, which affects the quality degradation of woven-fined products.

Claims (2)

1. A handheld machine for the manufacture of woven-fencing products, Passport, 1954, 60 2. Yefremov SM Automagic weaving machines. M., 1975, p. 67. /, /