yarn transfer machine; It is a yarn finishing machine that performs the process of making a bobbin by winding the thread bobbin to another bobbin in order to facilitate the works and processes in weaving, knitting and dyeing, and cleaning the thread faults.
Before starting production on the machine, the machine must be prepared for production. In this preparation phase, there are a number of processes that need to be known and applied.
These;
1-To comply with the warnings on the machine warning plate
2-Turning off the main switch during cleaning and maintenance on the machine
3-Learning the use and location of response tools in case of danger
4- Immediately notify the relevant personnel and emergency service units of an emergency or accident that cannot be resolved immediately or outside the jurisdiction
5-Implementing exit or escape plans in emergencies
6-Working carefully in order not to get your limbs caught in the apparatus inside the machine.
7-Separating hazardous and harmful wastes from other materials in accordance with the instructions given and ensuring that they are kept safely by taking the necessary precautions,
Wearing work clothes according to the nature of the job
8-Cleaning floors well, wiping slippery floors
9-Wearing headphones because there is an environment with noise and vibration due to the operation of many machines
10Wearing a cap on the head of the person working at the machine to prevent work accidents that may occur as a result of holding the hair of the person working on the machine by the roller, gear or rotating parts.
11Using masks to prevent occupational diseases due to long-term inhalation of fiber fly
12Using absorbent devices during cleaning
13Not to interfere with the machine while the machine is running Certain production materials and tools are needed in order to be able to produce on the yarn transfer machine.
These production materials and tools and equipment;
1-Thread: It is the basic product of textile created by combining fibers.
2-Coil boss: It is a conical or cylindrical device made of cardboard, wood, plastic, etc., which is used to form a bobbin by winding on a thread.
3-Coil: It is the conical or cylindrical form of the yarn wrapped on the empty conic (boss).
4-Label: It shows the properties of the thread and bobbin pasted and spooled inside the bobbins.
5-Coil transport trolley: The tool used to transport the coils.
6-Pallet: It is a specially made wooden grid on which the yarn bobbins are carried by stacking.
7-Less: It is unwanted yarn waste. These are used as oakum in maintenance and repair work and are used for cleaning machines.
8-Bone to cover the hair: It is used to prevent the employee's hair from getting tangled in the working parts of the machine.
9-Dust mask: It is used so that fiber fly does not cause respiratory diseases.
10-Ear plugs: It is used to avoid being affected by machine noise.
11-Gloves: It is used to prevent the materials used from harming the hands.
Controls at the time of production
The conformity of the coils taken on the trolleys to the desired standards is visually and manually checked. The conformity of the bobbins taken on the machines and cars in the yarn transfer machine before, during and after production to the desired standards is checked manually and visually.
- · Whether the thread winding cone is made in the right color, type and direction,
- Observing the smoothness control of the yarn so that the production is of suitable quality
- Paying attention to the thread count
- Paying attention to the form of the coil
- Coil density
- Coil diameter
- Coil taper
- Coil height
- Separation of dirty coils
- Separation of unlabeled bobbins
- Controlling the quantity of the product for each new batch
The task of the machine
on the yarn; clearing thick thin parts, faulty knots and flyaways and winding the yarn at a certain tension while transferring
machine working card
It is the information card that provides the necessary adjustments and inputs for the yarn to be transferred in the machine operation card.
Working principle of the machine
Empty cones (boss) required for winding the yarn are placed on the frame arm of the machine by affixing the label.The bobbins to be transferred are arranged on the spindles in the creels at the bottom of the machine.The yarn ends of the bobbins are pulled up by passing through the pigtail, the directional porcelain, the tensioning device, the paraffin shaft, the sensing sensor and the blade. The end of the thread is put into the empty cone (boss) to which the thread will be transferred, and the frame is lowered by being clamped between the boss and the adapter.While the yarn is held and stretched with one hand, the head is operated by pressing the green button with the other hand and normal winding is started by leaving the yarn. The winding of the yarns is checked, the wrong winding heads are stopped and the errors are cleared. The broken thread ends are tied by hand or knotter.Replaced coils with new ones.Filled coils are taken out of the frame.The coils are loaded into the trolley and then stacked on pallets.New empty cones (your boss) are attached and production is continued by repeating the same processes.
Parts of the machine and working elements
The yarn transfer machine consists of the machine body and seven working parts on it. These;
- Machine body
- Machine control buttons
- Feeding part
- Control and cleaning part
- · Knotter (splayzer)
- · Waxing
- · Winding part
- · Floating blower part
- Thread tensioning
There is an on/off button on the body of the machine. It has feeding, knotting, control, blade, winding and traveling blower mounted on the machine body.
There is a switch on the main body of the machine that allows the machine to be turned on and stopped, and on-off buttons to control each head.
yarn transfer machine;
It is a yarn finishing machine used to create larger or smaller yarn bobbins, which is an output of yarn production, to create larger or smaller yarn bobbins, to make softer winding on perforated cones (boss) to prepare the bobbin threads for dyeing, to eliminate the errors in the bobbin threads in fancy spinning and to knot the broken ones.
The machines that transfer the bobbin threads and bring them back to the bobbin format are called thread transfer machines. From the yarn transfer machine coil It called.
What are impacted teeth?
When one or more teeth fails to grow in the correct position and is therefore held below the normal gum line, it is called an impaction. This can be complete, such as completely unerrupted (buried) third molars (wisdom teeth) or partial when just part of the tooth is visible in the mouth.
Why are impactions important?
For best function and appearance the teeth should grow in a healthy alignment. When one or more teeth is impacted, this can affect the function of that tooth but also the function and appearance of other teeth.
Whether all impactions should be treated is still controversial and your dentist and oral and maxillofacial team can explain the advantages and disadvantages or treatment for you, which is usually surgical.
The feeding part of the machine consists of the creel assembly at the lower front of the machine and the bobbin spindles on it.
To yarn in yarn transfer machines paraffin, It is given to reduce the friction force of the yarn according to the place where the yarn will be used. Paraffin, It is especially applied to the less twisted knitting yarns to be used in knitting and weft yarns of shuttleless weaving machines to increase the lubricity of the yarn as it passes through the machine parts.
The end coming out of the transferred yarn bobbin;
pig tail,
control part
from tension washers
After passing, it comes to the paraffin apparatus and contacts the paraffin.
The best wax removal amount remains on the paraffin yarn, depending on the hardness of the paraffin, the pressing force of the paraffin and its apparatus, the yarn tension, and the ambient temperature. Good waxing reduces the friction force of the yarn by 40-50%.
The yarns to be wound in the yarn transfer machine are wound on the cones (bosses) in the desired dimensions and hardness according to the place of use.
Yarn transfer machine winding part elements
Guide: It is the part that prevents the yarn from getting out of control during the winding of the conical.
Balaban: It is the cylinder that turns the cone according to the rotation speed.
Frame: It is the part where the cone is attached.
Frame Arm: It is the arm that helps to attach and remove the conical with the help of the spring inside the frame.
Reserved: It is the plastic part that allows the thread to be wound around the edge of the conic.
Shuttle: It is the metal part with plastic tip that ensures the thread to be wound properly on the cone.
Creeper (creel): It is the iron bar on which the exiting coils are temporarily attached.
The yarn coming to the yarn feeder performs the cross winding process on the bobbin by moving the yarn from left to right, by the rollers, which are called grooved balaban, which rotates. When the bobbin reaches the desired diameter, the bobbin head stops automatically. For bobbin replacement, the bobbin winding process must be completed. After the desired and adjusted amount of winding, the working head stops, the frame is lifted by the worker, the full bobbin is removed and a new empty cone is inserted.
Then the frame is lowered and the yarn winding process is started again. The full bobbin delivery and bobbin bobbin feeding are done by the worker.
The full bobbins are taken by the employee and transferred to the bobbin packing section.
Important Features in Coil Winding:
· Coil stiffness (density): Coil stiffness is adjusted according to the usage area such as dyeing and warping. Coil density varies between 0.28-0.50gr/cm³. Density in paint coils is between 0.28-0.40gr/cm³. Particular attention is paid to the softness of the winding so that the dye can easily pass through the coil. The difference in hardness between the coils causes the paint to be abraded. Tight winding of the coil also reduces slippage. Coil stiffness is adjusted by pressing force of the bobbin to the drum.
·Winding Type: There are methods such as coarse winding and precision winding.
·Coil Edge: During winding, the edges of the bobbin become rough because more yarn is wound on the edges of the bobbin. Hardening of the coil edges not only disrupts the dyeing, but also increases breaks during subsequent use. To fix this, anti-aliasing systems are used. If the edges are too soft, the threads may slip from the bobbin. · Cross Wrap Angle: Coil cross winding angle is generally 25-40 cross winding angle, because the spaces inside the coil increase, the softer coil with an angle of around 40˚ is wound. For other uses, 25° coils are suitable.
·Coiling Speed: Winding speed; it varies according to the number of the wrapped yarn, the material and the conicality of the bobbin. As the taper increases, the winding speed is reduced. Winding the yarn too fast causes unnecessary ends down and reduces yarn quality. If waxing is done, the coil speed is reduced by 10%. If the dye bobbin is wound, the winding speed is reduced by 10-20%.
It will be sent to weaving directly as weft yarn. Coils are made conical and cross winding.
Coil types
- Normal conical coil (a)
- Curved conical coil (b)
- Normal cylindrical coil (c)
- Convex cylindrical coil (d)
cross winding
It is the winding of threads on a bobbin bobbin to form a certain angle. It is generally a preferred winding form for winding spun yarns.
Thread braking
Provides removal of weak places in the yarn. Since it does not deteriorate the production quality and is much more economical, the weak places must be removed by breaking it during the winding. The most suitable for this is the winding by braking with 15-20% of the breaking strength of the yarn.
Disconnected Binding
After weaving, the faults on the yarn, which will cause the fabric to look faulty, the parts to break in the unsound yarn are broken by braking, and the yarn is broken or cut in thicker areas (knife). The thread ends that have been plucked or cut or the thread ends of the newly tied bobbins are knotted by hand or with a knotter.
The importance of broken bonding
In the yarn transfer machine, the yarn ends are knotted according to the type of yarn (fancy, combed, worsted, openend, etc.) and the place of use (clothing, home textile, etc.). The usage area of the yarn also determines the sensitivity to be shown in knotting the yarn ends, and accordingly, the knot type is selected.
Broken tying methods and types Manual knotting and spleicer are basically used for joining yarn ends. It is very important that the thread ends are tied well. Knots should be tight, short and straight. Otherwise, the nodes may open by themselves. Otherwise, knitting and weavers will have difficulties because of yarn breaks.
Thread Cleaning
They remove the faults that create thickness on them by stripping or tearing. In case of breaking, the error is eliminated by breaking off some of the ends while tying the thread. Cleaning the yarn is done with mechanical or electronic cleaners. The degree of cleaning of the yarn can be increased or decreased depending on the fabric to be produced. All yarns produced in chenille fancy yarn machines are passed through the optics in the transfer machines and cleaned of all errors such as baldness and knots.
Knotter (splayer)
In the yarn transfer machine, knotting of broken or finished yarns is done by two methods. One is made by hand and the other is done with a spleicer that can move along the machine on a rail mounted from one end of the machine to the other.
The ends of the broken or finished yarns are held and some of them are taken by milking and broken. It is given crosswise to the two end knotters (spleicer). The blades of the knotter (spleicer) cut the excess yarn and pull the ends into the chamber with air circulation. After that, the processes are as follows;
untwisting
The ends of the cut threads are sucked into the opening tube, and the right steering arm pulls back a little to provide sufficient length to open the thread that will go into the opening tube.
knotting rope
By pushing the right diverter arm again, it pulls out the threads inside the opener tube. Then, it presses the rope with the thread pressing arm and by sending air into the prism, it makes knotting by wrapping the threads together.
Warning Lamps
An efficient operation is realized thanks to the technical information required for the operation of the machine and the warning elements that show the negativities that may occur during the operation of the machine, according to the yarn to be transferred.
Error Types Errors that may occur in the transfer machine
1-Thread slips on the bobbins or threads slipping on the butt parts of the bobbins
2-Soft coils or bulges in the forehead areas
3-Soft coil foreheads
4-More or less cuts
5-Triple knot
6-Short and unusable yarn reserve
7-Different bobbin hardnesses in dyeing bobbins
8-Generation Formation
9-Placing the wrong or wrong coil to be transferred
10-Running the head without rectifying the malfunction
11-Cleaning the machine with air during operation
12-Opened nodes
13-Soft and plied yarn bobbin stuck towards small area
14-Incorrect, thin and thick rope passing.
15-Defective looking coils
16-Over large coils
17-Loops in the thread
18-Opened nodes
19-The conic is not fully seated on the bed
20-Incorrect number of coil installation
21-If the coil has not been passed through the roads it passed while being transferred
22-Failure to connect broken and finished threads on time
23- If the broken yarn ends are not thrown away, they are left on the machine.
24-Faulty bobbin formation as a result of thread faults remaining on the thread
25-Dirty coil
26-Dust accumulation in the machine
27-If the filled coils are not removed in time
28- Not placing the coils of the machine in the stacking place according to their numbers and types Ø Coil surface defect
29-Contamination of coils
30-Failure to eliminate the errors encountered in the yarn clearer
31-Threading faults without cutting
32-Faulty dirty coil formation
33-Very waxing of yarn
34- Insufficient waxing of the thread
35- Deterioration of the surface smoothness of the yarn, dispersion of the yarn
36- Incorrectly passing the thread through the guides
37-Winding in the form of piling up in the coil
38-Wrong yarn winding on the bobbin
Rules to be followed and paid attention to by the personnel working on the yarn transfer machine
1-Uses personal protective equipment and materials during the process and preparation stages.
2-Uses natural resources economically and efficiently.
3- It separates the hazardous and harmful wastes from other materials in accordance with the instructions given and makes the temporary storage by taking the necessary precautions.
4-Controls the manufacturing status plate, which indicates the nature of the work done on the machine for each batch.
5-It cleans the inside, outside and surroundings of the machine in daily and lot changes.
6- At the beginning/end of the shift, getting information about the product and the machine from the previous shift / informs the next shift about the product and the machine.
7- Operates the machine in accordance with the operating instructions.
8- Putting full bobbins instead of empty bobbins, picking up empty bobbins and placing them in the basket. It takes full transferred bobbins and replaces them with empty bobbins.
9- In line with the work order, it pays attention that the bobbins to be transferred are in the same bobbin color for each batch of product.
10-Makes sure that the bobbin color of the transferred bobbin is the same. It does not mix party colors, threads.
11- It cleans the edges of the bobbins, the bottom of the machine, and the places that can come into contact with the thread on a daily basis.
12-Cleans the turbans.
13- Empties the troughs and turbans, puts the bags in the designated place by specifying their qualities.
14-If the coils are faulty (different in diameter, deformed, dirty, unlabeled, etc.), they are transferred to separate cars. Weighs the weight of the products when necessary.
15- He fills the coils in the cars, takes them to the storage area and puts the accompanying card on them.
16-Continuously performs the necessary controls in the process until the coils are loaded into the car in order for the coils to be of the desired quality.
17- Pays attention to the quality of the product, detects the product produced outside the desired standard and does what is necessary.
18-Makes the necessary separation and classification for the recovery of recyclable materials.
19-Saves machine stops by specifying the reason for hours and minutes.
20-Reports the problems and malfunctions that may arise in the machine / product during the operation of the machines to the relevant persons.
21-It connects the broken pieces carefully in accordance with the standards.
22-Tags the filled coils.
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