US3662439A - Stuffer box crimper lubricating system - Google Patents
Stuffer box crimper lubricating system Download PDFInfo
- Publication number
- US3662439A US3662439A US64737A US3662439DA US3662439A US 3662439 A US3662439 A US 3662439A US 64737 A US64737 A US 64737A US 3662439D A US3662439D A US 3662439DA US 3662439 A US3662439 A US 3662439A
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- US
- United States
- Prior art keywords
- crimper
- disc
- rolls
- discs
- conduits
- 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.)
- Expired - Lifetime
Links
- 230000001050 lubricating effect Effects 0.000 title description 3
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000004753 textile Substances 0.000 claims abstract description 9
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 description 6
- 238000002788 crimping Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
Definitions
- ABSTRACT In a sniffer-box crimper for textile fibers having cooperating crimper rolls, a stuffer box associated with said crimper rolls to accommodate the entry of said fibers and an assembly of crimper disc and crimper disc holder positioned on each side of the nip of said crimper rolls in such manner that said crimper discs are maintained in contact with the edges of said crimper rolls, the improvement wherein said crimper disc and said crimper discs holder have conduits therein which are aligned such that lubricant can be passed through said conduits to the areas of said contact.
- BACKGROUND OF THE INVENTION Stuffer-box crimpers are well known in the art, as illustrated, for example, by the Hitt U.S. Pat. No. 2,747,233 and the Dennis U.S. Pat. No. 3,237,270.
- a pair of cooperating rolls are used to force (or stuff) a bundle of textile fibers, e.g., filamentary tow, into a stuffer box, of suitable dimensions to accommodate the entry of said fibers, against the restraint imposed by a regulated force which tends to restrict egress of fibers from the box.
- An important feature of such apparatus is a pair of assemblies of crimper discs and crimper disc holders which are positioned on each side of the nip of said crimper rolls in such manner that said crimper discs are maintained in contact with the edges of said crimper rolls.
- the discs prevent lateral migration of fibers from the highcompaction zone immediately downstream from the nip of the rolls. They are urged against the edges of the rolls and become worn by contact therewith.
- the sharp edges of depressions developed in the discs as they wear can damage fibers, especially the filaments in a filamentary tow, which contact them; thus, the discs must be replaced at a frequency dependent on, among other things, the effectiveness of any lubrication present.
- This invention provides an improvement in a stuffer-box crimper wherein the crimper disc and crimper disc holder have conduits therein which are aligned such that lubricant can be passed through said conduits to the areas of contact between the discs and crimper rolls.
- This invention further provides a means for maintaining a given orientation between said crimper disc and said crimper disc holder.
- This invention therefore provides a means for more positive lubrication of the crimper apparatus.
- Harmful contamination of the crimped product can be avoided by choice of an oil which is easily scoured from the filaments; such oils are conveniently found among those lubricants adapted for use as textile finishes.
- each crimper disc have at least one conduit opening in the area of contact between the crimper disc and the edge of the crimper roll.
- Suitable means for maintaining a given orientation between the crimper disc holder and crimper disc is a locating pin linking the disc to the holder.
- FIG. 1 is a schematic elevational view of a stuffer-box crimper of the type useful in the practice of this invention partly in cross section, the section being taken as indicated by the line 1-1 in FIG. 2.
- FIG. 2 is a partial cross-sectional view taken along lines 2 2 of FIG. 1.
- FIGS. 3 and 4 are two elevation views giving details of the holder and disc assembtlg.
- filamentary tow 1 from source not shown, is forcibly fed into stuffer-box 2 by crimper rolls 3. Clapper 4 is urged closed by means schematically illustrated by weight 5. Discs 6, mounted in holders 7, are held in place against the edges of rolls 3 by means not shown. Lubricant is fed, from source not shown, through conduits 9, 10 and 10a (FIGS. 3 and 4) in holders 7 to conduits 11 and 11a in discs 6. By means of locating pins 12 and 12a, conduits l l and 11a are maintained in register with the ends of conduits l0 and 10a such that lubricant can be provided to the areas of contact between the discs and both edges of each roll 3, thereby minimizing wear of both discs and rolls.
- a stuffer-box crimper for textile fibers having a pair of cooperating crimper rolls, a stuffer-box associated with said crimper rolls to accommodate the entry of said fiber and an assembly of crimper discs and crimper disc holders positioned on each side of the nip of said crimper rolls, each crimper disc being in contact with an area of both crimper rolls, the improvement comprising said crimper discs and said crimper disc holders having conduits therein, each said disc holder conduit being connected at one end to a source of liquid lubricant and branching into plural conduits at the other end, each said disc provided with a conduit for each area of contact between said rolls and the disc with the conduits of each disc in communication with the branches in the corresponding disc holder; and means for maintaining a given orientation between said discs and their respective holders.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
In a stuffer-box crimper for textile fibers having cooperating crimper rolls, a stuffer box associated with said crimper rolls to accommodate the entry of said fibers and an assembly of crimper disc and crimper disc holder positioned on each side of the nip of said crimper rolls in such manner that said crimper discs are maintained in contact with the edges of said crimper rolls, the improvement wherein said crimper disc and said crimper discs holder have conduits therein which are aligned such that lubricant can be passed through said conduits to the areas of said contact.
Description
United States Patent Baken [451 May 16,1972
[54] STUFFER BOX CRIMPER LUBRICATING SYSTEM [72] Inventor: J. A. G. Baken, Lwyndrecht, Netherlands [73] Assignee: E. I. du Pont de Nemours 8; Company,
Wilmington, Del.
[22] Filed: Aug. 18, 1970 [21] Appl.No.: 64,737
[52] US. Cl ..28/l.6 51 Int. Cl ..D02g 1/12 [58] Field ofSearch ..28/1.6, 1.7, 72.14; 308/172 [56] References Cited UNITED STATES PATENTS 2,311,174 2/1943 Hitt ..28/1.6 2,747,233 5/1956 Hitt ..28/1.6
202,997 4/1878 Collet ..308/172 541,303 6/1895 Whitney .....308/l 72 2,846,729 8/1958 Sonnino 28/7214 X 3,220,083 1 1/1965 Crawford et al ..28/1.6
Primary Examiner-Robert R. Mackcy Attorney-Howard P. West, Jr.
[57] ABSTRACT In a sniffer-box crimper for textile fibers having cooperating crimper rolls, a stuffer box associated with said crimper rolls to accommodate the entry of said fibers and an assembly of crimper disc and crimper disc holder positioned on each side of the nip of said crimper rolls in such manner that said crimper discs are maintained in contact with the edges of said crimper rolls, the improvement wherein said crimper disc and said crimper discs holder have conduits therein which are aligned such that lubricant can be passed through said conduits to the areas of said contact.
1 Claim, 4 Drawing Figures PATENTEDMAY 1 6 m2 3, 662,439
INVENTOR JOZEF A. G. BAKEN ATTORNEY STUFFER BOX CRIMPER LUBRICATING SYSTEM This invention relates to the crimping of textile fibers and more particularly to a more effective means for lubrication of the stuffer-box crimper apparatus employed for crimping textile fibers.
BACKGROUND OF THE INVENTION Stuffer-box crimpers are well known in the art, as illustrated, for example, by the Hitt U.S. Pat. No. 2,747,233 and the Dennis U.S. Pat. No. 3,237,270. In such apparatus, a pair of cooperating rolls are used to force (or stuff) a bundle of textile fibers, e.g., filamentary tow, into a stuffer box, of suitable dimensions to accommodate the entry of said fibers, against the restraint imposed by a regulated force which tends to restrict egress of fibers from the box. An important feature of such apparatus is a pair of assemblies of crimper discs and crimper disc holders which are positioned on each side of the nip of said crimper rolls in such manner that said crimper discs are maintained in contact with the edges of said crimper rolls. The discs prevent lateral migration of fibers from the highcompaction zone immediately downstream from the nip of the rolls. They are urged against the edges of the rolls and become worn by contact therewith. The sharp edges of depressions developed in the discs as they wear can damage fibers, especially the filaments in a filamentary tow, which contact them; thus, the discs must be replaced at a frequency dependent on, among other things, the effectiveness of any lubrication present.
It is common practice to rely on the lubricant properties of the textile finish previously applied to the fibers to minimize the wear of crimper discs. A means for more positive lubrication of the areas of contact between crimper discs and crimper rolls would significantly improve efficiency of the crimping process along with any other simultaneous operations associated with crimping.
SUMMARY OF THE INVENTION This invention provides an improvement in a stuffer-box crimper wherein the crimper disc and crimper disc holder have conduits therein which are aligned such that lubricant can be passed through said conduits to the areas of contact between the discs and crimper rolls.
This invention further provides a means for maintaining a given orientation between said crimper disc and said crimper disc holder.
This invention therefore provides a means for more positive lubrication of the crimper apparatus.
PREFERRED EMBODIMENTS With the apparatus of this invention, lubrication of the critical wear areas of discs and rolls can be accomplished by the addition of suitable oils as required for minimizing wear.
nun
Harmful contamination of the crimped product can be avoided by choice of an oil which is easily scoured from the filaments; such oils are conveniently found among those lubricants adapted for use as textile finishes.
In order to enhance lubrication, it is preferred that each crimper disc have at least one conduit opening in the area of contact between the crimper disc and the edge of the crimper roll.
Suitable means for maintaining a given orientation between the crimper disc holder and crimper disc is a locating pin linking the disc to the holder.
The invention is further detailed in the description which follows, taken with the drawings, in which:
FIG. 1 is a schematic elevational view of a stuffer-box crimper of the type useful in the practice of this invention partly in cross section, the section being taken as indicated by the line 1-1 in FIG. 2.
FIG. 2 is a partial cross-sectional view taken along lines 2 2 of FIG. 1.
FIGS. 3 and 4 are two elevation views giving details of the holder and disc assembtlg.
With reference to e Figures, filamentary tow 1, from source not shown, is forcibly fed into stuffer-box 2 by crimper rolls 3. Clapper 4 is urged closed by means schematically illustrated by weight 5. Discs 6, mounted in holders 7, are held in place against the edges of rolls 3 by means not shown. Lubricant is fed, from source not shown, through conduits 9, 10 and 10a (FIGS. 3 and 4) in holders 7 to conduits 11 and 11a in discs 6. By means of locating pins 12 and 12a, conduits l l and 11a are maintained in register with the ends of conduits l0 and 10a such that lubricant can be provided to the areas of contact between the discs and both edges of each roll 3, thereby minimizing wear of both discs and rolls.
Significant improvements in both operation efficiency and average product quality have been realized by the use of apparatus of this invention in the production of crimped synthetic tow.
What is claimed is:
1. In a stuffer-box crimper for textile fibers having a pair of cooperating crimper rolls, a stuffer-box associated with said crimper rolls to accommodate the entry of said fiber and an assembly of crimper discs and crimper disc holders positioned on each side of the nip of said crimper rolls, each crimper disc being in contact with an area of both crimper rolls, the improvement comprising said crimper discs and said crimper disc holders having conduits therein, each said disc holder conduit being connected at one end to a source of liquid lubricant and branching into plural conduits at the other end, each said disc provided with a conduit for each area of contact between said rolls and the disc with the conduits of each disc in communication with the branches in the corresponding disc holder; and means for maintaining a given orientation between said discs and their respective holders.
Claims (1)
1. In a stuffer-box crimper for textile fibers having a pair of cooperating crimper rolls, a stuffer-box associated with said crimper rolls to accommodate the entry of said fiber and an assembly of crimper discs and crimper disc holders positioned on each side of the nip of said crimper rolls, each crimper disc being in contact with an area of both crimper rolls, the improvement comprising said crimper discs and said crimper disc holders having conduits therein, each said disc holder conduit being connected at one end to a source of liquid lubricant and branching into plural conduits at the other end, each said disc provided with a conduit for each area of contact between said rolls and the disc with the conduits of each disc in communication with the branches in the corresponding disc holder; and means for maintaining a given orientation between said discs and their respective holders.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6473770A | 1970-08-18 | 1970-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3662439A true US3662439A (en) | 1972-05-16 |
Family
ID=22057968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US64737A Expired - Lifetime US3662439A (en) | 1970-08-18 | 1970-08-18 | Stuffer box crimper lubricating system |
Country Status (1)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB328870I5 (en) * | 1972-02-09 | 1975-01-28 | ||
US4300266A (en) * | 1978-09-14 | 1981-11-17 | The English Card Clothing Company Limited | Flats for carding machines |
US4662042A (en) * | 1986-04-07 | 1987-05-05 | Celanese Corporation | Methods and apparatus for lubricating a cheek plate of a textile crimping mechanism |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US202997A (en) * | 1878-04-30 | Improvement in step-boxes for shafts or spindles | ||
US541303A (en) * | 1895-06-18 | Step-bearing | ||
US2311174A (en) * | 1940-12-06 | 1943-02-16 | Du Pont | Textile crinkler |
US2747233A (en) * | 1952-07-25 | 1956-05-29 | Du Pont | Adjustable stop crimper |
US2846729A (en) * | 1955-11-04 | 1958-08-12 | American Cyanamid Co | Tow crimper |
US2862279A (en) * | 1956-04-10 | 1958-12-02 | Allied Chem | Tow crimping apparatus |
US3220083A (en) * | 1960-06-17 | 1965-11-30 | Eastman Kodak Co | Apparatus for the manufacture of uniformly crimped filter tow |
US3373469A (en) * | 1966-08-08 | 1968-03-19 | Allied Chem | Apparatus for crimping textile fibers |
-
1970
- 1970-08-18 US US64737A patent/US3662439A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US202997A (en) * | 1878-04-30 | Improvement in step-boxes for shafts or spindles | ||
US541303A (en) * | 1895-06-18 | Step-bearing | ||
US2311174A (en) * | 1940-12-06 | 1943-02-16 | Du Pont | Textile crinkler |
US2747233A (en) * | 1952-07-25 | 1956-05-29 | Du Pont | Adjustable stop crimper |
US2846729A (en) * | 1955-11-04 | 1958-08-12 | American Cyanamid Co | Tow crimper |
US2862279A (en) * | 1956-04-10 | 1958-12-02 | Allied Chem | Tow crimping apparatus |
US3220083A (en) * | 1960-06-17 | 1965-11-30 | Eastman Kodak Co | Apparatus for the manufacture of uniformly crimped filter tow |
US3373469A (en) * | 1966-08-08 | 1968-03-19 | Allied Chem | Apparatus for crimping textile fibers |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB328870I5 (en) * | 1972-02-09 | 1975-01-28 | ||
US3916486A (en) * | 1972-02-09 | 1975-11-04 | Pavena Ag | Apparatus for impregnating textile fibers |
US4300266A (en) * | 1978-09-14 | 1981-11-17 | The English Card Clothing Company Limited | Flats for carding machines |
US4662042A (en) * | 1986-04-07 | 1987-05-05 | Celanese Corporation | Methods and apparatus for lubricating a cheek plate of a textile crimping mechanism |
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