GB1565094A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1565094A – Method of and apparatus for producing biconical spools of yarns on winding machines
– Google Patents

GB1565094A – Method of and apparatus for producing biconical spools of yarns on winding machines
– Google Patents
Method of and apparatus for producing biconical spools of yarns on winding machines

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Publication number
GB1565094A

GB1565094A
GB3935476A
GB3935476A
GB1565094A
GB 1565094 A
GB1565094 A
GB 1565094A
GB 3935476 A
GB3935476 A
GB 3935476A
GB 3935476 A
GB3935476 A
GB 3935476A
GB 1565094 A
GB1565094 A
GB 1565094A
Authority
GB
United Kingdom
Prior art keywords
thread
package
roller
guide
speed
Prior art date
1975-10-02
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB3935476A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

FMN Schuster GmbH and Co KG

Original Assignee
FMN Schuster GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1975-10-02
Filing date
1976-09-22
Publication date
1980-04-16

1976-09-22
Application filed by FMN Schuster GmbH and Co KG
filed
Critical
FMN Schuster GmbH and Co KG

1980-04-16
Publication of GB1565094A
publication
Critical
patent/GB1565094A/en

Status
Expired
legal-status
Critical
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Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL

B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

B65H54/00—Winding, coiling, or depositing filamentary material

B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers

B65H54/28—Traversing devices; Package-shaping arrangements

B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable stroke

B—PERFORMING OPERATIONS; TRANSPORTING

B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL

B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

B65H2701/00—Handled material; Storage means

B65H2701/30—Handled filamentary material

B65H2701/31—Textiles threads or artificial strands of filaments

Abstract

The use of control devices for the positive reduction of the stroke of the thread guide is limited by speed on account of the masses to be moved. In order, even at higher thread speeds, to obtain thread packages having a conicity on the side faces, the traversing speed of the thread guide for the thread to be laid on the bobbin is increased with an increasing diameter of the thread bobbin. Between the thread guide (9) and the lay-on point on the thread package, the thread (5) moves over a free zone which is under a drag effect, the thread (5) forming, on the drag path (2), a drag angle relative to the normal (23) to the axis (24) of the roller (4). The size of the drag angle is obtained from the circumferential speed of the friction roller (4) and the stroke speed of the thread guide (9) executing a constant stroke (26). The faster the traversing of the yarn guide takes place, the larger the drag angle becomes. With an increasing diameter of the thread bobbin, a reduction of the stroke length of the thread being deposited on the thread bobbin is obtained. A conicity on the end faces of the forming thread package is thereby achieved.

Description

(54) METHOD OF AND APPARATUS FOR PRODUCING
BICONICAL SPOOLS OF YARNS ON WINDING MACHINES
(71) We, FMN SCHUSTER GMBH &
CO. KG, formerly called FMN Schuster &
Co., a Kommanditgesellschaft organised and existing under the laws of the Federal
Republic of Germany, of Berrenrather
Strasse 511, 5032 Hürth-Efferen, Federal
Republic of Germany do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following state ment: This invention relates to a method of and apparatus for obtaining pineapple bobbins of yarns with winding machines, in which the thread is fed to a bobbin tube by means of a reciprocating thread guide of a traversing device having a reversing-thread roller, in order to form a thread package.
In order to be able to produce packages with different structure, it is known in winding devices, cross bobbin winders and the like, to provide in the drive of the thread guide by means of a reversing-thread roller (as hereinafter defined), a device for shortening the stroke of the reciprocating thread guide, so that the thread package is conical at its sides. The term «reversing-thread roller’ is to be construed herein and in the claims as meaning a roller which has oppositely-inclined helical grooves connected to one another at each end by further grooves.
In winding machines in which the bobbin tube or the bobbin is driven by means of a friction roller, so that the winding speed of the thread remains constant independently of the increase in diameter of the bobbin, it is known to subject the thread guide to a shortening of its stroke during its reciprocating movement, in order to obtain thread packages whereof the side surfaces have a conical or other shape. The control of the thread guide for this purpose is derived from the growth of the bobbin. Use is made, for example, of a series of linked reels, which, as the diameter of the thread package increases. acts indirectly on one arm of the pivoted thread guide. This arm of the thread guide slides by means of a sliding block or the like in a guide rail, which is swivel mounted. Depending on the swivel position of the guide rail, swivelling of the pivoted thread guide is brought about causing a shortening of stroke in the reciprocating movement of the thread guide, in dependence on the increase in the diameter of the thread package being formed. This method of control enables considerable conicity of the thread package to be achieved, which can for example amount to 30 to 50 mm on each end face of said thread package.
The use of such a control device for stroke shortening of the thread guide in the traversing device is limited by the speed.
The said control device can be used at a maximum speed of about 600 double strokes per minute of the thread guide. The stroke speed may not be increased indefinitely because of the relatively high masses to be moved. Therefore, at higher speeds, known transversing devices with the device for achieving conicity on the thread package can no longer be used. With winding machines operating at higher speeds, i.e.
with so-called rapid winders, one is obliged to produce thread packages with perpendicular end faces; i.e. winding machines are used in which the control device for obtaining stroke shortening in dependence upon the increasing diameter of the thread package is not present, so that the thread packages receive end faces extending perpendicular to the winding axis. However, such thread packages are extremely vulnerable during further processing, transport and the like. There is a risk of the end faces of the thread package being disturbed, because threads slip off, so that the thread positions on the end faces of the package are disturbed. This has a deleterious effect during withdrawal of the thread from said packages. Breakage of the thread can occur, entailing interruption of the processing. The very purpose of the thread package in the form of a pineapple bobbin is to render the structure of the end faces totally robust and insensitive to disturbance. A drawback, however, in this case, is a lengthy winding time for such a structure of thread package.
When higher speeds are used for producing the thread packages, packages with perpendicular end faces and the sources of disturbance involved have to be accepted.
An object of the present invention is to produce thread packages on so-called rapid winding machines with packages may be simply provided with conicity on the end faces.
According to the present invention, we provide a method of producing pineapple bobbins of yarn of thread with winding machines in which the thread is fed to a bobbin tube or thread package by means of a thread guide reciprocated to-and-fro by a reversing-thread roller (as hereinbefore defined,) the bobbin tube or thread package is driven by friction and the rotational speed of the reversing-thread roller and hence the traversing speed of the thread guide is increased throughout the winding procedure.
Such a measure entails the considerable advantage that, in order to obtain a predetermined degree of conicity on the end faces of the thread package. it is no longer necessary to use the previous control devices entailing the movement of relatively high masses. The desired result is obtained merely by the increase in the traversing speed of the thread guide for the thread being fed to the thread package. The invention proceeds from the recognition that, as the thread runs from the reciprocating thread guide of the traversing device on to the thread package and the friction roller, the thread is under a tractive action or drag effect, before it comes into contact with the thread package and the friction roller. Between the thread guide and the contact point on the thread package and the friction roller, the thread moves along a free path, which is termed a tractive path. The thread guide takes the thread along close behind same in this free tractive path until it contacts the thread package and the friction roller. The thread in the tractive path is set at a predetermined angle to the normal to the axis of the thread package or friction roller between the position of the thread guide at any moment and the point of application at the thread package and the friction roller, this angle being termed the tractive angle. This tractive angle varies dependent upon the speed of the thread guide of the traversing device. At lower speeds, there is a smaller tractive angle than at higher speeds of the thread guide. Said tractive angle is particularly noticeable at the reversing points of the thread guide, in that, the more rapid the traversing of the thread guide, the greater the tractive angle.
This means that the thread at the reversing points of the transversing device is no longer deposited at a stroke length passing through the thread guide. The stroke length of the thread at the spool, apart from the tractive path, is thus dependent on the size of the tractive angle. This means that the more rapidly traversing is effected by the thread guide, the shorter will be the bobbin length.
Thus, if the stroke speed of the thread guide of the tranversing device is increased during growth of the thread package, as the diameter of the thread bobbin increases, there will be a shortening of the stroke length of the thread being delivered to said bobbin.
Thus, conicity of the end faces of the thread package is obtained, since the tractive angle increases with higher stroke speed of the thread guide. In this way, it is possible to produce a thread package, at high thread speed, which has a certain degree of conicity on its end faces. Even if the stroke shortening is in general only relatively small, it is sufficient to obtain a thread package with stable end faces, lying in the range of an approximately perpendicular structure of the thread package, yet having a conicity which makes the end faces of the thread package resistant to disturbance. When there is a considerable increase in the thread speed, a larger degree of conicity will be obtained. This is however not intended in thread packages with a perpendicular structure of the end faces. Rather, a relatively small conicity on the ends of the package is sufficient in order to provide sufficient stability of said ends.
In order that the stroke speed of the thread may be automatically increased as the spool diameter increases, the rotational speed of the reversing thread roller is increased. This may be appropriately effected when the reversing thread roller has its own drive motor, the rotational speed of which is variably controllable. The rotational speed alteration for the reversingthread roller may be appropriately increased up to 40% to 60%. Thus, one achieves sufficient conicity in the otherwise nearly perpendicularly-constructed thread package.
It is preferable not to have the thread running from the thread guide laid directly on the thread package or the thread bobbin but to arrange the thread guide, the friction roller and the thread bobbin in such a way that the thread running from the thread guide is firstly laid on the friction roller and is passed therefrom to the thread bobbin. In this way, the thread build-up on the thread bobbin is not impaired by the surface of the thread package. The specification of the alteration in the deposition angle may, in this way, be more accurately maintained.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying diagrammatic drawings in which:
Figure 1 shows a winding device or winder according to the present invention in end view and in partial section;
Figure 2 is a fragmentary front view corresponding to Figure 1, and
Figure 3 is a front view of one example of a thread package produced by a winding device according to the present invention.
A winding device 1 for producing packages or windings of yarns or threads in a casing 2, has a traversing device 3 and a friction roller 4 or pressure-roller. Reciprocatory movement of a thread 5 is imparted by means of a reversing-thread roller 6, in whose helical grooves 7 a traveller 8 engages, which is provided with a thread guide 9. The reversing-thread roller 6 is pivoted in a housing 10. A mandrel 11, preferably an expansible mandrel, can be provided with a thrust-on bobbin tube 12, on to which the thread 5 is wound into a thread package 13.
The mandrel 11 is mounted by means of a swivel arm 14 for swivelling movement about a shaft 15 which for its part is supported in the casing 2. The rotation of the bobbin tube 12 or of the thread package 13 may be effected by bearing on the friction roller 4 which is driven by means of a transmission member 16, e.g. a toothed belt or the like, from a motor 17. The bobbin tube 12 may alternatively be driven through the mandrel 11, on which it is seated by a regulable motor. As the diameter of the thread package 13 increases, the mandrel 11 and the thread package moves along a slot 18 in the direction of arrow 19. A lifting device (not shown) operated by a pressure medium may be provided to regulate the bearing of the mandrel 11 with the bobbin tube 12 and the package 13 against the driving friction roller 4. The mandrel 11 with the bobbin tube 12 and the thread package 13 is thereby kept pressed towards the friction roller 4 by means of the lifting device.
The thread 5 passes through a substantially free length of path 22 from the reciprocating thread guide 9 as far as the effective point of application at the friction roller 4.
Hence it follows that, during its reciprocating movement, the thread guide 9 pulls or drags the thread 5 behind it, the point of application 21 at any moment relative to the movement of thread guide 9 by dragging along afterwards, so to speak. The thread 5 in the path 22 of drag or pull forms, relative to the normal 23 to the axis 24 of the friction roller 4, an angle a which may be termed an angle of pull. The size of the angle of pull results from the peripheral speed of the roller 4 and the stroke speed of the threaded guide 9, which executes its constant stroke 26 along a path 25 (Figure 2).
The more slowly the thread guide 9 is moved to-and-fro the smaller becomes the angle a, i.e. the follow-up movement of the thread in the path 22 becomes less. Theoretically, the width of the thread package to be formed can correspond roughly to the stroke 26 of the thread guide at a very low stroke speed of the thread guide 9, yet there is always a shortening of the point of application at the friction roller 4 between the points of return or reversing. The more rapidly the thread guide traverses to-andfro, the greater will be the angle of pull a i.e. the greater will be the lag of the point 21 of application of the thread 5 at the friction roller 4 behind the position at any moment of the thread guide 9. The length between the reversing points of the point 21 of application of the thread 5 at the friction roller 4 is thus dependent on the angle of pull a, and as this in turn is dependent on the stroke speed of thread guide 9, is also dependent on the stroke speed of thread guide 9. The distance between the reversing points of the point 21 of application of the thread 5 at the friction roller 4 corresponds to the stroke length of the thread at the thread package 13.
This means that the more rapidly the thread guide 9 traverses to-and-fro, the shorter is the stroke length of the thread at the package 13. In order, thus, to obtain a reduction in the stroke length of the thread at the thread package, as the diameter of the package 13 increases, to achieve a conicity at the ends of the package, the stroke speed of the thread guide 9 is to be increased during the increase in the diameter of the thread package. Thus, the deposition angle or angle of pull a becomes greater, and the stroke length of the thread at the thread package is shortened. This is achieved by increasing the speed of rotation of the reversing-thread roller 6 throughout the winding procedure. For this purpose there is an independent motor 26 with a transmission belt 27 or the like for driving the reversing-thread roller 6. The drive motor 26 is of variable speed and is so regulated that the rotational speed of the reversingthread roller 6 is increased as the diameter of thread package 13 increases. For example, the speed may be increased by 40% to 60% above the starting rotational speed for the reversing-thread roller. Whereas, for example, the reversing-thread roller has rotated at 8000 r.p.m., corresponding to 800 double strokes at the thread guide 9, the rotational speed of the reversing-thread roller 6 may be increased, for example, to 11000 to 13000 r.p.m., corresponding to an increase in the double stroke of the thread guide 9 to 1100 to 1300. Whereas the conventional angle of pull, depending on the construction of the winding machine.
amounts to about 8″ to 18″, the angle of pull at the high stroke speeds is increased to about 25 to 30 , said angle also being dependent on the tractive length of the thread. An important factor here is that by a simple increase in the stroke speed of the thread guide, a conicity on the ends of the thread package at high withdrawal speeds of the thread, i.e. when the winding machines are rotating very rapidly, is achieved without conventional linkage mechanism for controlling the thread guide being required.
Thus, many control components are eliminated, and conicity of the ends of the thread package is achieved by simple means, said conicity being diliberately kept relatively small, in order to obtain thread packages which still fall into the general category of packages with perpendicular or flat end faces.
Figure 3 shows an example of a thread package 13 obtained by means of the method and apparatus above described. The thread package has conical end faces 28, whose conicity is a fraction of the conventional conicity. Whereas, conventionally, the distance 29 is from 30 mm to 50 mm, now by increasing the rotational speed of the reversing-thread roller with withdrawal speeds of the thread which are already high.
the distance 29 can be 6 mm or less. while still remaining such that, because of a conical formation of the end faces 28. the position of the thread on the thread package on the end faces remains stable during transport and during unwinding of the thread for further processing in processing machines. By selection of the automatic increase in rotational speed of the reversingthread roller, and thus of the stroke speed of the thread guide. in a predetermined dependence upon the increase in diameter of the thread package, conicity of any desired degree may be obtained.
The method and apparatus of the invention are particularly applicable to the production of pineapple bobbins of synthetic varn or thread.
WHAT WE CLAIM IS:
1. A method of producing pineapple bobbins of yarn or thread with winding machines in which the thread is fed to a bobbin tube or thread package by means of a thread guide reciprocated to-and-fro by a reversing-thread roller (as hereinbefore defined). the bobbin tube or thread package is driven by friction and the rotational speed of the reversing-thread roller and hence the traversing speed of the thread guide is increased throughout the winding procedure.
2. Apparatus for producing pineapple bobbins of yarn or thread, comprising a winding machine in which the thread is supplied to a bobbin tube by a thread guide reciprocated to-and-fro by a reversingthread roller (as hereinbefore defined), in which said bobbin tube is driven by friction and in which means is provided for increasing the rotational speed of the reversingthread roller and hence the transversing speed of the thread guide throughout the winding procedure.
3. Apparatus according to Claim 2, in which said means comprises a drive motor for the reversing-thread roller, the speed of the motor being selectively regulable.
4. Apparatus according to Claim 2 or 3, in which the alteration in the rotational speed of the reversing-thread roller is regulable up to 40% to 60% higher than the starting rotational speed.
5. Apparatus according to Claim 2 or 3 or 4, in which the friction roller is mounted relative to the thread guide in such a way that the thread to be fed to the thread package comes into contact with the friction roller in advance of the thread package.
6. A method according to Claim 1, of producing pineapple bobbins of yarn or thread, substantially as hereinbefore described.
7. Apparatus for producing pineapple bobbins of yarn or thread in accordance with the method claimed in Claim 1 or 6, substantially as hereinbefore described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. rotational speed of the reversing-thread roller 6 may be increased, for example, to 11000 to 13000 r.p.m., corresponding to an increase in the double stroke of the thread guide 9 to 1100 to 1300. Whereas the conventional angle of pull, depending on the construction of the winding machine. amounts to about 8″ to 18», the angle of pull at the high stroke speeds is increased to about 25 to 30 , said angle also being dependent on the tractive length of the thread. An important factor here is that by a simple increase in the stroke speed of the thread guide, a conicity on the ends of the thread package at high withdrawal speeds of the thread, i.e. when the winding machines are rotating very rapidly, is achieved without conventional linkage mechanism for controlling the thread guide being required. Thus, many control components are eliminated, and conicity of the ends of the thread package is achieved by simple means, said conicity being diliberately kept relatively small, in order to obtain thread packages which still fall into the general category of packages with perpendicular or flat end faces. Figure 3 shows an example of a thread package 13 obtained by means of the method and apparatus above described. The thread package has conical end faces 28, whose conicity is a fraction of the conventional conicity. Whereas, conventionally, the distance 29 is from 30 mm to 50 mm, now by increasing the rotational speed of the reversing-thread roller with withdrawal speeds of the thread which are already high. the distance 29 can be 6 mm or less. while still remaining such that, because of a conical formation of the end faces 28. the position of the thread on the thread package on the end faces remains stable during transport and during unwinding of the thread for further processing in processing machines. By selection of the automatic increase in rotational speed of the reversingthread roller, and thus of the stroke speed of the thread guide. in a predetermined dependence upon the increase in diameter of the thread package, conicity of any desired degree may be obtained. The method and apparatus of the invention are particularly applicable to the production of pineapple bobbins of synthetic varn or thread. WHAT WE CLAIM IS:

1. A method of producing pineapple bobbins of yarn or thread with winding machines in which the thread is fed to a bobbin tube or thread package by means of a thread guide reciprocated to-and-fro by a reversing-thread roller (as hereinbefore defined). the bobbin tube or thread package is driven by friction and the rotational speed of the reversing-thread roller and hence the traversing speed of the thread guide is increased throughout the winding procedure.

2. Apparatus for producing pineapple bobbins of yarn or thread, comprising a winding machine in which the thread is supplied to a bobbin tube by a thread guide reciprocated to-and-fro by a reversingthread roller (as hereinbefore defined), in which said bobbin tube is driven by friction and in which means is provided for increasing the rotational speed of the reversingthread roller and hence the transversing speed of the thread guide throughout the winding procedure.

3. Apparatus according to Claim 2, in which said means comprises a drive motor for the reversing-thread roller, the speed of the motor being selectively regulable.

4. Apparatus according to Claim 2 or 3, in which the alteration in the rotational speed of the reversing-thread roller is regulable up to 40% to 60% higher than the starting rotational speed.

5. Apparatus according to Claim 2 or 3 or 4, in which the friction roller is mounted relative to the thread guide in such a way that the thread to be fed to the thread package comes into contact with the friction roller in advance of the thread package.

6. A method according to Claim 1, of producing pineapple bobbins of yarn or thread, substantially as hereinbefore described.

7. Apparatus for producing pineapple bobbins of yarn or thread in accordance with the method claimed in Claim 1 or 6, substantially as hereinbefore described with reference to the accompanying drawings.

GB3935476A
1975-10-02
1976-09-22
Method of and apparatus for producing biconical spools of yarns on winding machines

Expired

GB1565094A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

DE19752544052

DE2544052A1
(en)

1975-10-02
1975-10-02

METHOD AND DEVICE FOR ACHIEVING BICONICAL SPOOLS FROM YARN IN SPINDLE MACHINES

Publications (1)

Publication Number
Publication Date

GB1565094A
true

GB1565094A
(en)

1980-04-16

Family
ID=5958104
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3935476A
Expired

GB1565094A
(en)

1975-10-02
1976-09-22
Method of and apparatus for producing biconical spools of yarns on winding machines

Country Status (5)

Country
Link

JP
(1)

JPS5242945A
(en)

CH
(1)

CH611236A5
(en)

DE
(1)

DE2544052A1
(en)

FR
(1)

FR2326365A1
(en)

GB
(1)

GB1565094A
(en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE10342266B4
(en)

2002-09-25
2016-02-04
Saurer Germany Gmbh & Co. Kg

Method for producing a cross-wound bobbin

Family Cites Families (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1290895A
(en)

1969-01-08
1972-09-27

US3697008A
(en)

1969-12-29
1972-10-10
Owens Corning Fiberglass Corp
Apparatus for packaging linear material

US3727855A
(en)

1971-04-05
1973-04-17
Leesona Corp
Winding method and apparatus

JPS525616B2
(en)

1971-10-08
1977-02-15

1975

1975-10-02
DE
DE19752544052
patent/DE2544052A1/en
active
Pending

1976

1976-09-20
CH
CH1188676A
patent/CH611236A5/en
not_active
IP Right Cessation

1976-09-22
GB
GB3935476A
patent/GB1565094A/en
not_active
Expired

1976-10-01
JP
JP11844876A
patent/JPS5242945A/en
active
Pending

1976-10-04
FR
FR7629803A
patent/FR2326365A1/en
active
Granted

Also Published As

Publication number
Publication date

DE2544052A1
(en)

1977-04-14

CH611236A5
(en)

1979-05-31

FR2326365A1
(en)

1977-04-29

FR2326365B1
(en)

1982-03-05

JPS5242945A
(en)

1977-04-04

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