GB2134550A - A brake for a carpet loom spool - Google Patents

A brake for a carpet loom spool Download PDF

Info

Publication number
GB2134550A
GB2134550A GB08401683A GB8401683A GB2134550A GB 2134550 A GB2134550 A GB 2134550A GB 08401683 A GB08401683 A GB 08401683A GB 8401683 A GB8401683 A GB 8401683A GB 2134550 A GB2134550 A GB 2134550A
Authority
GB
United Kingdom
Prior art keywords
spool
magnet
brake
flange
rotation
Prior art date
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.)
Granted
Application number
GB08401683A
Other versions
GB8401683D0 (en
GB2134550B (en
Inventor
Piot Kulawik
Zbigniew Janoszek
Jan Patynowski
Franciszek Jelesnianski
Czeslaw Wojcik
Henryk Wichary
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.)
DYWANOW KOWARY FAB
TS OSRODEK BADAWCZO ROZWO
Original Assignee
DYWANOW KOWARY FAB
TS OSRODEK BADAWCZO ROZWO
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.)
Filing date
Publication date
Application filed by DYWANOW KOWARY FAB, TS OSRODEK BADAWCZO ROZWO filed Critical DYWANOW KOWARY FAB
Publication of GB8401683D0 publication Critical patent/GB8401683D0/en
Publication of GB2134550A publication Critical patent/GB2134550A/en
Application granted granted Critical
Publication of GB2134550B publication Critical patent/GB2134550B/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/02—Axminster looms, i.e. wherein pile tufts are inserted during weaving
    • D03D39/04—Spool Axminster looms
    • D03D39/06—Tuft yarn tube or spool frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
    • B65H59/04—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on package or support
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braking Arrangements (AREA)
  • Looms (AREA)

Abstract

The brake consists of a permanent magnet 1 which is attracted towards the adjacent face of the spool flange 2, directly or through an annular friction liner 3 or regularly spaced brake pad elements 4 of friction lining material. The magnet 1 is mounted loosely on a sleeve 5 and is supported and prevented from rotating by a tooth 6 connected to a bracket 7. The application of this brake reduces the pile yarn waste during the production process. <IMAGE>

Description

SPECIFICATION A brake for a carpet loom spool The present invention relates to a brake for a carpet loom spool.
Aconventional brakefora carpet loom spool includes a clip in the form of a flat spring on which a spool bearing is mounted. The braking is derived by a rubber element rubbing on the flank ofthe spool keeper plate, and also held by the spring clip.
A brake constructed in this way does not make it possible to regulate the pressure force ofthe rubber element in relation to the surface of the spool keeper plate, and hence the moment offriction for a series of spools will bedifferentfrom one spool to the next.
This disadvantage causes a considerable difference in tension ofthe yarn wound on the different spools, mounted on the same loom. The difference in tension increases the yarn wastage during the production process.
Accordingly the present invention provides a carpet loom spool brake having a flange on the spool, and a permanent magnet which is magnetically attracted towardsthe spool flange, the magnet being mounted loosely on a spindle and restrained against rotation aboutthe axis of rotation ofthe spool but allowed two degrees of rotational freedom relative to the spool flange for rotation around two mutually perpendicular diametral axes and one degree offreedom for translation in the direction parallel to the axis of rotation of the spool. An annular spacer, or a series of separate brake pad elements spaced equiangularly overthe whole friction face ofthe magnet can be located between magnet and the face of the spool flange.The spacer or brake pad elements are made from material of high coefficient offriction and have good resistanceto abrasion. The magnet hastwo degrees of rotational freedom in relation to the supporting spindle around mutually perpendicular axes, and one degree offreedom for translation in the direction ofthe axis of rotation ofthe spool.
Such a brakeensuresself-adjustmentofthe magnet in relation to the loom keeper plate surface, owing to the suitable clearance between the external diameter of its support spindle and the internal diameter of the annular magnet. The additional advantage of such a brake is that moments offriction on all spools are of equal value, so there will be equal tension of all yarn strands being wound on these spools and hence there is a reduction ofthe pileyarn wastage.
In orderthatthe present invention may more readily be understood the following description is given, merely by way of example, with reference to the accompanying drawings, in which: FIGURE 1 shows a partly sectioned view of a first embodiment of a brake in accordance with this invention, in which a magnet bears directly against the face ofthespool flange; FIGURE 2 shows a view, similarto Figure 1, of a second embodiment of brake, in which a magnet is separated from the face of the spool flange byway of a spaceroffriction lining; and FIGURE 3 is afurther similarview of athird embodiment of brake, in which a magnet is attracted towards the adjacentface of the spool flange, usually of steel, through the agencyof discrete brake pad elements.
As shown in the drawings, the brake consists of an annular permanent magnet 1 mounted on the spool flange2 and attracted towards the adjacent face of the spool flange 2, through a spacer3. As can be seen, the spool flange defines a housing to the brake.
The magnet 1 is mounted loosely around an inner spindle bywayofa slotted expanding-type sleeve 5 on which the mgnetffts but which is itself a loosefitover the spindle. Them gnet is supported by a tooth 6 connected to a backet7 sothatthe magnet is prevented from exectng unlirrFited rotation about the axis of rotation of the spool Fricticrnal drag of the magnet 1 on the flange2 thus brakesthe rotation of the spool.
In Figure 2 the magnet is separatedfrom theflange 2 by an annularspacer3 of friction lining material.
Figure 3 differs in thatthe magnet 1 and flange 2 are separated from one another bya series of brake pad elements 4 of friction lining material carried by and mounted equiangularlyaround the magnet 1.
All three embodiments function in a similar manner.
1. A carpet loom spool brake having a flange on the spool, panda permanent magnet which is magnetically attracted towards the spool flange, the magnet being mounted loosely on a spindle and restrained against rotation aboutthe axis of rotation of thespool but allowed two degrees of rotational freedom relative to the spool flange for rotation around two mutually perpendiculardiametral axes and onedegree of freedom for translation in the direction parallel to the axis of rotation of the spool.
2. A brake according to claim 1, including an annular spacer of friction lining material between the magnet and the spool flange.
3. A brake according to claim 2, wherein the lining material is carried bythe magnet.
4. A brake according to claim 1, including brake pad elements, equiangularlyspaced overthewhole magnet face nearerthe spool flange, said'brake pad elements being madefrom a material having afriction coefficient with the spool flange which ishigherthan that of the magnetwith the spool flange.
5. A brake according to any one ofdafms 1 to 4, wherein said spool flange defines a housing to the brake.
6. A brake according to any one ofclaims 1 to 5, wherein the magnet is carried bya sleeve fitting loosely overthe spindle.
7. A brake accordingtoctaFm6, wherein the magnet is restrained against rotation by a tooth carried by a stationary bracketofthe loom.
8. A brake fora carpet loom spool, substantially as hereinbefore described, with reference to and as illustrated in,.the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A brake for a carpet loom spool The present invention relates to a brake for a carpet loom spool. Aconventional brakefora carpet loom spool includes a clip in the form of a flat spring on which a spool bearing is mounted. The braking is derived by a rubber element rubbing on the flank ofthe spool keeper plate, and also held by the spring clip. A brake constructed in this way does not make it possible to regulate the pressure force ofthe rubber element in relation to the surface of the spool keeper plate, and hence the moment offriction for a series of spools will bedifferentfrom one spool to the next. This disadvantage causes a considerable difference in tension ofthe yarn wound on the different spools, mounted on the same loom. The difference in tension increases the yarn wastage during the production process. Accordingly the present invention provides a carpet loom spool brake having a flange on the spool, and a permanent magnet which is magnetically attracted towardsthe spool flange, the magnet being mounted loosely on a spindle and restrained against rotation aboutthe axis of rotation ofthe spool but allowed two degrees of rotational freedom relative to the spool flange for rotation around two mutually perpendicular diametral axes and one degree offreedom for translation in the direction parallel to the axis of rotation of the spool. An annular spacer, or a series of separate brake pad elements spaced equiangularly overthe whole friction face ofthe magnet can be located between magnet and the face of the spool flange.The spacer or brake pad elements are made from material of high coefficient offriction and have good resistanceto abrasion. The magnet hastwo degrees of rotational freedom in relation to the supporting spindle around mutually perpendicular axes, and one degree offreedom for translation in the direction ofthe axis of rotation ofthe spool. Such a brakeensuresself-adjustmentofthe magnet in relation to the loom keeper plate surface, owing to the suitable clearance between the external diameter of its support spindle and the internal diameter of the annular magnet. The additional advantage of such a brake is that moments offriction on all spools are of equal value, so there will be equal tension of all yarn strands being wound on these spools and hence there is a reduction ofthe pileyarn wastage. In orderthatthe present invention may more readily be understood the following description is given, merely by way of example, with reference to the accompanying drawings, in which: FIGURE 1 shows a partly sectioned view of a first embodiment of a brake in accordance with this invention, in which a magnet bears directly against the face ofthespool flange; FIGURE 2 shows a view, similarto Figure 1, of a second embodiment of brake, in which a magnet is separated from the face of the spool flange byway of a spaceroffriction lining; and FIGURE 3 is afurther similarview of athird embodiment of brake, in which a magnet is attracted towards the adjacentface of the spool flange, usually of steel, through the agencyof discrete brake pad elements. As shown in the drawings, the brake consists of an annular permanent magnet 1 mounted on the spool flange2 and attracted towards the adjacent face of the spool flange 2, through a spacer3. As can be seen, the spool flange defines a housing to the brake. The magnet 1 is mounted loosely around an inner spindle bywayofa slotted expanding-type sleeve 5 on which the mgnetffts but which is itself a loosefitover the spindle. Them gnet is supported by a tooth 6 connected to a backet7 sothatthe magnet is prevented from exectng unlirrFited rotation about the axis of rotation of the spool Fricticrnal drag of the magnet 1 on the flange2 thus brakesthe rotation of the spool. In Figure 2 the magnet is separatedfrom theflange 2 by an annularspacer3 of friction lining material. Figure 3 differs in thatthe magnet 1 and flange 2 are separated from one another bya series of brake pad elements 4 of friction lining material carried by and mounted equiangularlyaround the magnet 1. All three embodiments function in a similar manner. CLAIMS
1. A carpet loom spool brake having a flange on the spool, panda permanent magnet which is magnetically attracted towards the spool flange, the magnet being mounted loosely on a spindle and restrained against rotation aboutthe axis of rotation of thespool but allowed two degrees of rotational freedom relative to the spool flange for rotation around two mutually perpendiculardiametral axes and onedegree of freedom for translation in the direction parallel to the axis of rotation of the spool.
2. A brake according to claim 1, including an annular spacer of friction lining material between the magnet and the spool flange.
3. A brake according to claim 2, wherein the lining material is carried bythe magnet.
4. A brake according to claim 1, including brake pad elements, equiangularlyspaced overthewhole magnet face nearerthe spool flange, said'brake pad elements being madefrom a material having afriction coefficient with the spool flange which ishigherthan that of the magnetwith the spool flange.
5. A brake according to any one ofdafms 1 to 4, wherein said spool flange defines a housing to the brake.
6. A brake according to any one ofclaims 1 to 5, wherein the magnet is carried bya sleeve fitting loosely overthe spindle.
7. A brake accordingtoctaFm6, wherein the magnet is restrained against rotation by a tooth carried by a stationary bracketofthe loom.
8. A brake fora carpet loom spool, substantially as hereinbefore described, with reference to and as illustrated in,.the accompanying drawing.
GB08401683A 1983-01-25 1984-01-23 A brake for a carpet loom spool Expired GB2134550B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL24030683A PL135698B1 (en) 1983-01-25 1983-01-25 Carpet loom fleece roll brakes

Publications (3)

Publication Number Publication Date
GB8401683D0 GB8401683D0 (en) 1984-02-22
GB2134550A true GB2134550A (en) 1984-08-15
GB2134550B GB2134550B (en) 1986-03-26

Family

ID=20015699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08401683A Expired GB2134550B (en) 1983-01-25 1984-01-23 A brake for a carpet loom spool

Country Status (2)

Country Link
GB (1) GB2134550B (en)
PL (1) PL135698B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211581A2 (en) * 1985-07-26 1987-02-25 The Bentley-Harris Manufacturing Co. Braider carrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111850746B (en) * 2020-06-18 2022-05-31 江苏兴达钢帘线股份有限公司 Permanent magnet constant tension device for pay-off seat of DTS stranding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211581A2 (en) * 1985-07-26 1987-02-25 The Bentley-Harris Manufacturing Co. Braider carrier
EP0211581A3 (en) * 1985-07-26 1987-10-14 Raychem Corporation Braider carrier
US4736668A (en) * 1985-07-26 1988-04-12 Raychem Corporation Braider carrier

Also Published As

Publication number Publication date
GB8401683D0 (en) 1984-02-22
PL240306A1 (en) 1984-07-30
GB2134550B (en) 1986-03-26
PL135698B1 (en) 1985-11-30

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PCNP Patent ceased through non-payment of renewal fee