Different Types Of Shuttle Loom
Different Types Of Shuttle
create your weaving go power tool. during this initial entry in our shuttle series, Liz Moncrief covers four of the only shuttles offered. FIG. SHUTTLE
There area unit many varieties of flat shuttles. Here area unit a pair of netting shuttles, one wound with rust thread and one empty; a band or belt shuttle with a depression within the middle to carry additional thread; and a stick shuttle wound with blue weft.
One item that garners a great deal of debate among weavers, each new and seasoned, is that the weaving shuttle. There area unit several makes and models offered, and most area unit tailored to specific varieties of weaving. With this series, I review the most classes of shuttles and provide recommendations on however best to load and use them. during this post, I begin with the only shuttles available; I’ll accomplish the additional advanced varieties in future posts.
The simplest weaving shuttle could be a flat STICK SHUTTLE. you’ll develop a stick shuttle anyplace that weaving provides area unit sold , otherwise you will simply carve your own. Stick shuttles area unit usually used on table looms (including rigid-heddle looms) with slender sheds. The shuttle doesn’t glide across the warp on a shuttle race however instead is passed from the correct to hand and back once more. slippery the shuttle across the warp causes friction on the warp and is ineffective.
Wind a flat stick shuttle with a figure eight mistreatment the arms or notches from the highest right to rock bottom left. once it starts to urge too full, switch to the highest left to rock bottom right. this can build the majority of your thread yarn on one facet of the stick. If you’re extremely going for distance, you’ll flip the stick over and do an equivalent on the opposite facet, however you risk building a great deal of bulk on the shuttle, which can hinder the submit to the shed.
Stick shuttles vary in size and form, however all of them area unit helpful for specific tasks.
Another flat shuttle is the BELT OR BAND SHUTTLE, that is typically no quite 6–10 inches long associate degreed created to be used on an tape or band loom. Most belt shuttles have a knife edge on one facet, designed for packing within the thread, and a recessed center trough to change it to hold additional thread. as a result of this recessed space, it’s best to easily wind the thread yarn around from front to back and to create up the yarn on either side. Despite its little size, a belt or band shuttle will hold an honest quantity of thread.
Band shuttles typically have a recessed middle to carry additional thread and a knife edge for packing in thread on the loom.
The NETTING SHUTTLE has been used for hundreds of years in creating and repairing fishing nets, however weavers notice it helpful for hand-manipulation techniques like Spanish medallions or Brook’s Bouquet styles. it’s sleek and passes simply between warp threads. Netting shuttles may also be utilized in place of butterflies in tapestry weaving and for adding short lengths of thread of a special color or designer yarn.
Next in my line-up is the RAG SHUTTLE, that is intended to carry a flat strip of cloth for rag rugs or alternative similar comes. This shuttle is typically pretty beardly and needs the massive shed found on counterbalance and countermarch looms. Wind your rag strips around and round the shuttle keeping them flat. though the rag strips are going to be compressed, beginning out with a flat strip makes it easier to keep up the coloured cloth surface within the finished piece.
Wind your rag shuttles with the rags flat for best results.
How Much to Wind?
Many weavers wish to avoid loading additional thread on a shuttle than they have in their plain-woven piece. On the opposite hand, you’ll wish to grasp whether or not you have got enough thread to complete a bit while not having associate degree surplus be a part of. Here’s my simple technique for deciding what proportion thread to wind. It’s simple to try to to and fairly correct.
Before setting out to weave, live a take a look at length of thread yarn that’s ten yards long.
Wind the ten yards on your shuttle and count the quantity of full winds as you are doing thus. (Let’s say your ten yards equals twenty full winds on your shuttle.)
Weave your piece till you run out of thread and live what percentage inches you’ve plain-woven. (For functions of this instance, I’ll say that you just wove five inches before running out of thread. twenty winds = five inches, or four winds = one in..)
Based on the quantity of inches you wish to weave, calculate what percentage winds you would like to form for the complete project. (If you wish to weave sixty inches, and four full winds gave you one in. of fabric, you may want 240 full winds on your shuttle.)
If the quantity of winds required is excessive, like in #4 higher than, merely wind associate degree quantity that’s snug on every shuttle load and wait till you’re getting ready to the top. Then merely find out what you would like for the last section of your weaving mistreatment the quantity of winds required for every in. that you just worked out in step three.
1. Primary mechanisms
2. Secondary mechanisms
3. Auxiliary mechanisms
1. Primary Mechanisms
These are primary or essential mechanisms. while not these mechanisms, it’s much not possible to supply a cloth. it’s for this reason that these mechanisms ar referred to as ‘primary’ mechanisms. the first mechanisms are 3 in range.
a. Shedding mechanism
b. choosing mechanism
c. battered mechanism
a. Shedding mechanism
The shedding mechanism separates the warp threads into 2 or additional layers in line with style or divisions to create a tunnel called ‘shed’
b. choosing mechanism
The choosing mechanism passes thread thread from one selvedge of the material to the opposite through the shed by means that of a shuttle, a projectile, a rapier, a needle, AN air-jet or a water-jet. The inserted thread thread is understood as “pick”.
c. battered mechanism
The battered mechanism beats or pushes the new inserted length of thread thread (pick) into the already plain-woven cloth at a degree called “fell of the cloth”. These 3 mechanisms specifically shedding, choosing so battered are tired sequence.
2. Secondary Mechanisms
These mechanisms are next in significance to the first mechanisms. If weaving is to be continuous, these mechanisms are essential. so that they ar referred to as the ‘secondary’ mechanisms. They are:
a) Take-up motion
b) Let-off motion.
a) Take-up motion
The take-up motion withdraws are tefact|the material|the fabric} from the weaving space at a continuing rate therefore on provide the desired pick-spacing (in picks/inch or picks/cm) so winds it on to a cloth roller.
b) Let-off motion
The let-off motion delivers the warp to the weaving space at the desired rate and at constant tension by moving it from the weaver’s beam. The secondary motions areeeeeeee administrated at the same time.
3. Auxiliary Mechanisms
To get high productivity and smart quality of cloth, further mechanisms, referred to as auxiliary mechanisms, are accessorial to a comprehensible loom. The auxiliary mechanisms are helpful however conditionally essential. this is often why they’re referred to as the ‘auxiliary’ mechanisms. These are listed below.
a. Warp defender mechanism
b. thread stop motion
c. Temples
d. Brake
e. Warp stop motion (Predominantly found in automatic looms)
a. Warp defender mechanism
The warp defender mechanism can stop the loom if the shuttle gets unfree between the highest and bottom layers of the shed. It therefore prevents excessive harm to the warp threads, reed wires and shuttle.
b. thread stop motion
The object of the thread stop motion is to prevent the loom once a thread thread breaks or gets exhausted. This motion helps to avoid cracks in an exceedingly cloth.
c. Temples
The perform of the temples is to grip the material and hold it at constant dimension because the warp within the reed, before it’s haunted.
d. Brake
The brake stops the loom now whenever needed. The weaver uses it to prevent the loom to repair broken ends and picks.
e. Warp stop motion
The object of the warp stop motion is to prevent the loom now once a warp thread breaks throughout the weaving method.
Merits And Limitation Of Shuttle Loom
A.Advantages /Merit Of Shuttle Loom –
1.The power loom appropriate for the varied cloth. i.e it’s versatile loom.
2. it’s appropriate for smaller ton of material
3. As loom operate at less speed, warp preparation isn’t hard
4. Quality demand of yarn (warp and filling ) is a smaller amount
5. The capital investment is a smaller amount
6. needed terribly less quantity of climate management.
7. there’s no would like for separate Selvedge mechanism. Automatic selvedge kind .
8. the facility demand less technical instrumentality.
9. The labour is well offered and extremely high ability isn’t needed.
10. The component low-cost and simply offered in market
11. It is fitted with Dobby and Jacquard.
Disadvantages/ limitation of Shuttle loom
1. It use 0.5 kilo of shuttle to hold a yarn having a weight of zero. 2 gm/m.
2. it’s wasting ton of mechanical energy of the shuttle within the shuttle box.
3. It offer a lot of wear and tear of shuttle and checking devices.
4. The speed of the machine is a smaller amount regarding one hundred eighty PPM.
5. Production per machine per labour is a smaller amount
6. It imposes nice strain on selecting mechanism .
7. It provides a ton of noise and vibration upto one hundred twenty sound unit.
8. it’s tough to manage shuttle movement several time shuttle fly off.
9. it’s tough to figure with multicolored filling .
10. terribly tiny size of the filling package of regarding 80-120 g would like frequent replacement.
11. Frequent stopping of Loom provides beginning mark on a material
12. the material quality is tough to manage.
13. the varied cloth faults occur because of the technological limitation.
14. It need more room ,labour per unit production.
15. there’s a high consumption of component
16. It needs separate pirn winding department.
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