Warping Machine Components

Questions and Answers

What is the purpose of the hydraulic brake system in the warping machine?

To measure the length of yarn wounded on the beam

To stop the machine on any yarn breakage (correct)

To expand or contract the zig-zag comb

To move the pressing drum forward or backward

What is the function of the pressing drum in the warping machine?

To protect the warper's beam from foreign elements

To measure the length of yarn wounded on the beam

To move the creel forward or backward

To make the beam compact and help in the cylindrical build-up of the beam (correct)

What is the purpose of the wind shield in the warping machine?

To measure the length of yarn wounded on the beam

To stop the machine on any yarn breakage

To protect the warper's beam from foreign elements (correct)

To move the creel forward or backward

What determines the creel capacity of a warping machine?

All of the above Signup and view all the answers

What is the formula to calculate creel capacity?

Creel capacity = 2 x No. of spindles x No. of rods / Wing Signup and view all the answers

What is the maximum creel capacity of a warping machine?

1296 Signup and view all the answers

What is the range of creel angle (θ) in a warping machine?

30° - 35° Signup and view all the answers

What is the relationship between creel angle (θ) and wing angle (α)?

α = θ/2 Signup and view all the answers

What is the primary function of the leasing/dividing rods in a section warping machine?

To separate the yarns into two portions for easier leasing Signup and view all the answers

What is the purpose of the leasing comb in a section warping machine?

To separate the warp yarns into sheets for lease formation Signup and view all the answers

Which of the following is NOT a component of the carriage in a section warping machine?

Swift/drum/dresser Signup and view all the answers

What is the primary function of the section reed in a section warping machine?

To control the section width and prevent thread overlap Signup and view all the answers

What is the purpose of the measuring roller in a section warping machine?

To ensure that each section wound on the swift is of equal length Signup and view all the answers

What is the function of the tension and guide roller in a section warping machine?

To provide tension and guide the warp yarns Signup and view all the answers

Which of the following components is responsible for compressing the warp section over the drum to create a consistent layer during warping?

Tension and guide roller Signup and view all the answers

What is the purpose of the oil box in the carriage of a section warping machine?

To lubricate the tension and guide roller Signup and view all the answers

What is the process of warping in rope form onto balls called?

Ball warping Signup and view all the answers

What is the range of yarn ends pulled from the creel in ball warping?

350 - 500 Signup and view all the answers

What is the purpose of a lease string in ball warping?

To aid yarn separation Signup and view all the answers

What is the device that collapses and condenses the sheet of yarn into rope form in ball warping?

Trumpet Signup and view all the answers

How does yarn tension compare between sectional warping and direct warping?

Yarn tension is higher in direct warping Signup and view all the answers

What is the characteristic of beam length in sectional warping compared to direct warping?

Beam length is longer in sectional warping Signup and view all the answers

What is the efficiency comparison between sectional warping and direct warping?

Sectional warping has higher efficiency Signup and view all the answers

How many sized beams are produced from one warper's beam in direct warping?

One Signup and view all the answers

What is the relation between the length of yarn and the amount of yarn wound on the beam?

Direct relation Signup and view all the answers

What factor has a direct relation to the total number of sections in the warping process?

Total number of ends in the warp sheet Signup and view all the answers

Which type of creel is predominantly used in sectional warping machines?

H-type creel Signup and view all the answers

How is the yarn passed from the creel to the sectional warping drum?

Through a leasing rod and various combs Signup and view all the answers

What is the primary purpose of removing all sections simultaneously from the drum?

To create a uniform warp sheet Signup and view all the answers

Which of the following statements is true about the headstock of a sectional warping machine?

It includes a guide roller before the sectional warping drum. Signup and view all the answers

What does the cone angle affect in the yarn winding process?

Direct relation to the amount of yarn wound Signup and view all the answers

What type of warping is characterized by a slow speed and is typically used in creating patterned yarns?

Sectional warping Signup and view all the answers

What is the purpose of the touch screen panel in the context provided?

To feed warp specifications. Signup and view all the answers

What motion is defined as 'feed' in the context of the carriage's movements?

Traverse motion. Signup and view all the answers

What is the function of the swift/dresser?

To wrap small sections onto a beam. Signup and view all the answers

Which of the following is not mentioned as a parameter for the machine specifications?

Drum thickness. Signup and view all the answers

What is indicated by the 'creel capacity' specification in the context provided?

The number of cones that can be handled. Signup and view all the answers

How is the package withdrawal and beam doffing process initiated?

By turning the switch from warping to beaming. Signup and view all the answers

What affects the taper angle of the swift/dresser?

Yarn type. Signup and view all the answers

What does the movement of section cause in the carriage?

It enables the carriage to move along section width. Signup and view all the answers

Study Notes

Warping Process and Equipment

A motor drives the system, complemented by hydraulic brake systems on both sides for immediate stopping during yarn breaks.
The pressing drum compacts the beam and measures yarn length, with hydraulic movement for attachment or detachment.
Pressing drum lifts away at the beam brake to prevent yarn friction and potential damage.
Wind shield protects the warping beam from contaminants and shields the operator during operation, activating automatically with the machine start.

Creel Capacity

Maximum number of yarn packages on the creel defines its capacity, currently reaching up to 1296.
Capacity formula: Creel capacity = 2 × number of rods × number of spindles.
Zig-zag comb adjusts to set maximum and minimum creel capacity.
Creel angle (θ) ranges between 30° and 35°, while wing angle (α) is half of the creel angle.
Yarn wound on the beam is directly proportional to yarn length and cone angle, but inversely proportional to number of ends/section.
Number of sections is influenced by creel capacity (indirect relation) and total ends in warp sheet (direct relation).

Sectional Warping Machine

Contains two main parts: the creel and headstock, with an H-type creel often used due to its slower speed capabilities.
Yarn runs from the creel, through leasing rods and combs, to the sectional warping drum for winding into sheets.

Headstock Components

Leasing/Dividing Rods: Separate yarns for easier leasing.
Leasing Comb: Separates warp yarns into sheets with alternating open and block dents.
Carriage: Moves and carries essential parts including section reed and measuring roller.
Swift/Drum/Dresser: A hollow steel cylinder that wraps yarn sections before they are passed to the beam.

Carriage Motion

Traverse Motion: Slow movement enables yarn layer climbing on the cone for proper leasing.
Movement of Section: Moves the carriage for section changes.

Swift/Drum/Dresser Attributes

Diameter ranges between 50"-60" with tapered angle dependent on yarn count, type, and ends/cm.

Machine Parameters

Working width: 2300 mm - 3600 mm
Warping speed: 600 m/min
Beaming speed: 160 m/min
Drum diameter: 1000 mm
Section width: 20 mm - 360 mm
Creel capacity: 720
Cone angle: 7°, 9°, 12°

Package Withdrawal and Beam Doffing

Warp yarn sheets are transferred to the warper’s beam in a beaming process, switching from warping mode.
Yarn tension is higher in package withdrawal compared to sectional warping, leading to more yarn wound on the beam.
Sizing produces one sized beam from multiple warper’s beams, with direct warping being more efficient.

Ball Warping Process

Involves warping in rope form onto balls, suitable for denim manufacturing.
A two-stage process, pulling 350-500 yarn ends from the creel through a device maintaining yarn separation.
Lease strings are placed periodically across yarn to assist with separation.
Yarns condense through a funnel-shaped device known as a trumpet or condenser into rope form.

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Description

This quiz covers the components and functionalities of a warping machine, including the motor-driven system, hydraulic brake, pressing drum, and beam brake.

Warping Machine Components

Questions and Answers

What is the purpose of the hydraulic brake system in the warping machine?

What is the function of the pressing drum in the warping machine?

What is the purpose of the wind shield in the warping machine?

What determines the creel capacity of a warping machine?

What is the formula to calculate creel capacity?

What is the maximum creel capacity of a warping machine?

What is the range of creel angle (θ) in a warping machine?

What is the relationship between creel angle (θ) and wing angle (α)?

What is the primary function of the leasing/dividing rods in a section warping machine?

What is the purpose of the leasing comb in a section warping machine?

Which of the following is NOT a component of the carriage in a section warping machine?

What is the primary function of the section reed in a section warping machine?

What is the purpose of the measuring roller in a section warping machine?

What is the function of the tension and guide roller in a section warping machine?

Which of the following components is responsible for compressing the warp section over the drum to create a consistent layer during warping?

What is the purpose of the oil box in the carriage of a section warping machine?

What is the process of warping in rope form onto balls called?

What is the range of yarn ends pulled from the creel in ball warping?

What is the purpose of a lease string in ball warping?

What is the device that collapses and condenses the sheet of yarn into rope form in ball warping?

How does yarn tension compare between sectional warping and direct warping?

What is the characteristic of beam length in sectional warping compared to direct warping?

What is the efficiency comparison between sectional warping and direct warping?

How many sized beams are produced from one warper's beam in direct warping?

What is the relation between the length of yarn and the amount of yarn wound on the beam?

What factor has a direct relation to the total number of sections in the warping process?

Which type of creel is predominantly used in sectional warping machines?

How is the yarn passed from the creel to the sectional warping drum?

What is the primary purpose of removing all sections simultaneously from the drum?

Which of the following statements is true about the headstock of a sectional warping machine?

What does the cone angle affect in the yarn winding process?

What type of warping is characterized by a slow speed and is typically used in creating patterned yarns?

What is the purpose of the touch screen panel in the context provided?

What motion is defined as 'feed' in the context of the carriage's movements?

What is the function of the swift/dresser?

Which of the following is not mentioned as a parameter for the machine specifications?

What is indicated by the 'creel capacity' specification in the context provided?

How is the package withdrawal and beam doffing process initiated?

What affects the taper angle of the swift/dresser?

What does the movement of section cause in the carriage?

Study Notes

Warping Process and Equipment

Creel Capacity

Sectional Warping Machine

Headstock Components

Carriage Motion

Swift/Drum/Dresser Attributes

Machine Parameters

Package Withdrawal and Beam Doffing

Ball Warping Process

Studying That Suits You

Description

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