US3162924A - Textile crimpine device - Google Patents

Textile crimpine device Download PDF

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Publication number
US3162924A
US3162924A US276821A US27682163A US3162924A US 3162924 A US3162924 A US 3162924A US 276821 A US276821 A US 276821A US 27682163 A US27682163 A US 27682163A US 3162924 A US3162924 A US 3162924A
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shafts
rolls
arm
bracket
crimping
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US276821A
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James P Richeson
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MOUNSANTO Co
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MOUNSANTO Co
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    • 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

  • This invention relates to textile crimping devices and more particularly to devices for maintaining alignment of drive shafts in a tow crimper.
  • a pair of rolls are used for forcing the bundle of filaments, or'tow, into a crimping chamber.
  • These rolls are mounted on parallel shafts, one of which is movable so that the rolls can be urged together with great force. Because the rolls are on or near the ends of the shafts, the shafts tend to spring apart when the loading force is applied. This prevents the rolls from moving completely face-to-face, thereby resulting in a greater pressure being applied to one side of the tow than to the other. Since the rolls must be accessible for inspection, cleaning and replacement of the rolls, it has not been feasible to mount hearings on the outer ends of the drive shafts to prevent roll separation. With this in mind, one of the objects of this invention is to provide a novel and improved shaft supporting device.
  • Another object of this invention is to provide a quickdetachable support for holding a pair of drive shafts in alignment.
  • a further object of this invention is to provide a clamp for holding a pair of parallel drive shafts to prevent movement of the shafts away from each other.
  • One embodiment of the present invention contemplates, in a tow crimper having crimping rolls mounted on parallel drive shafts, a clamp having a fixed arm or jaw and a movable arm or jaw.
  • the fixed jaw engages a bearing on one of the shafts, While the movable jaw engages a bearing on the other shaft.
  • a heavy fluid cylinder is used to urge the movable jaw toward the fixed jaw to prevent movement of the shafts away from each other.
  • FIGURE 1 is a front view of the device showing the positioning of the device on a pair of shafts
  • FIGURE 2 is a top vew showing the position of the clamp relative to the crimping rolls.
  • a pair of drive shafts 11 and 12 are shown supporting a pair of crimping rolls 13 and 14.
  • a mechanism (not shown) of a well known type is used to urge the shafts toward each other to force the rolls 13 and 14 together.
  • Bearings 15 and 16 support the rolls 13 and 14 at points behind these rolls.
  • a guide 17 directs a tow 18 into the nip of the rolls 13 and 14, these rolls forcing the tow into a crimping chamber 19.
  • This structure is conventional.
  • a supporting device 20 is used.
  • This device includes a bracket 23 to which is secured a fixed arm or jaw 24.
  • the fixed jaw 24 is provided with an aracuate recess 25 for receiving the outer race of a bearing 28 mounted on the shaft 12.
  • a movable arm or jaw 29 having an arcuate recess 30 for receiving the outer race of a bearing 32 mounted on the shaft 11.
  • the arcuate recesses 25 and 30 face each other to hold the bearings 28 and 32 therebetween.
  • a heavy fiuid cylinder 33 secured to the end of the bracket 23 is provided with a piston rod 36 which engages the movable jaw 29 to urge this jaw toward the fixed jaw 24.
  • a fluid supply 37 is connected through a pressure regulating valve or device 38 to the cylinder 33.
  • the fiuid cylinder applies a force to the movable jaw 29 to prevent movement of the shafts 11 and 21 away from each other.
  • the fluid pressure is lowered sufiiciently to allow manual movement of the movable arm or jaw'29 away from and clear of the bearing 32.
  • the complete device 20 is then lifted off the shafts and set aside. After cleaning, etc., the device 20 is replaced on the shafts 11 and 12 and pressure again applied to the cylinder 33. It can be readily seen that removal or replacement of the device can be effected almost in seconds.
  • a shaft supporting device comprising a bracket, a first arm secured to one end of the bracket and adapted to support one of said shafts, a second arm movably connected to the bracket for supporting the other shaft, said arms being positioned in facing relationship with the shafts therebetween, and means engaging the movable arm for urging said movable arm toward said fixed arm to prevent movement of the shafts away from each other when a bundle of filaments is passed between the rolls.
  • a device for preventing movement of the shafts away from each other comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket extending across the shafts above said bearings, a first arm secured to one end of the bracket and having an arcuate recessfor receiving the outer race of the bearing on one of said shafts, a second arm movably mounted on the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the shafts therebetween, and means secured to the bracket for engaging and urging the movable arm toward the fixed arm to prevent movement of the shafts away from each other when a tow is passed between the rolls.
  • a device for preventing movement of the shafts away from each other comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket positioned above and extending across the shafts, a first arm secured to the bracket and having an arcuate recess for receiving the outer race of one of the bearings, a second arm pivotally secured to the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the bearings therebetween, and a fluid cylinder secured to the bracket and having a piston rod engaging the second arm for urging said second arm toward said first arm to prevent movement of the shafts away from each other when a tow is passed between the rolls.
  • a device for preventing movement of the shafts away from each other comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket positioned above and ex- 3 tending across the shafts, a first arm secured to the bracket and having an arcuate recess for receiving the outer race of one of the bearings, a second arm pivotally secured to the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the bearings therebetween, and a fluid cylinder secured to the bracket and having a piston rod engaging the second armnfor urgin'g said second arm toward said first arm to prevent movement of the shafts away from each other when a tow is passed between the rolls, a pressure regulating device, and a source of fluid under pressure, said fluid source being connected through the regulating device to the cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Dec. 29, 1964 J. P. RICHESON 3,162,924
TEXTILE CRIMPING DEVICE Filed April 30, 1963 INVENTOR. JAMES P. RICHESON MM. M
ATTORN United States Patent Ofifice 3,152,924 Patented Dec. 29, 1964 3,162,924 TEXTILE CRIMKING DEVICE James P. Richeson, Decatur, Ala., assignor to Monsanto Company, a corporation of Deiaware Filed Apr. 30, 1963, Ser. No. 276,821 4 Claims. (1. 28-1) This invention relates to textile crimping devices and more particularly to devices for maintaining alignment of drive shafts in a tow crimper.
In one type of machine for crimping a bundle of chemi cal textile filaments a pair of rolls are used for forcing the bundle of filaments, or'tow, into a crimping chamber. These rolls are mounted on parallel shafts, one of which is movable so that the rolls can be urged together with great force. Because the rolls are on or near the ends of the shafts, the shafts tend to spring apart when the loading force is applied. This prevents the rolls from moving completely face-to-face, thereby resulting in a greater pressure being applied to one side of the tow than to the other. Since the rolls must be accessible for inspection, cleaning and replacement of the rolls, it has not been feasible to mount hearings on the outer ends of the drive shafts to prevent roll separation. With this in mind, one of the objects of this invention is to provide a novel and improved shaft supporting device.
Another object of this invention is to provide a quickdetachable support for holding a pair of drive shafts in alignment.
A further object of this invention is to provide a clamp for holding a pair of parallel drive shafts to prevent movement of the shafts away from each other.
One embodiment of the present invention contemplates, in a tow crimper having crimping rolls mounted on parallel drive shafts, a clamp having a fixed arm or jaw and a movable arm or jaw. The fixed jaw engages a bearing on one of the shafts, While the movable jaw engages a bearing on the other shaft. A heavy fluid cylinder is used to urge the movable jaw toward the fixed jaw to prevent movement of the shafts away from each other.
Other objects and advantages of the invention will become apparent when the following detailed description is read in conjunction with the appended drawing, in which FIGURE 1 is a front view of the device showing the positioning of the device on a pair of shafts, and
FIGURE 2 is a top vew showing the position of the clamp relative to the crimping rolls.
Referring now in detail to the drawing, a pair of drive shafts 11 and 12 are shown supporting a pair of crimping rolls 13 and 14. A mechanism (not shown) of a well known type is used to urge the shafts toward each other to force the rolls 13 and 14 together. Bearings 15 and 16 support the rolls 13 and 14 at points behind these rolls. A guide 17 directs a tow 18 into the nip of the rolls 13 and 14, these rolls forcing the tow into a crimping chamber 19. This structure is conventional.
To prevent separation of the front ends of the shafts 11 and 12 under load, a supporting device 20 is used. This device includes a bracket 23 to which is secured a fixed arm or jaw 24. The fixed jaw 24 is provided with an aracuate recess 25 for receiving the outer race of a bearing 28 mounted on the shaft 12.
At the other end of the bracket 23 there is pivotally attached a movable arm or jaw 29 having an arcuate recess 30 for receiving the outer race of a bearing 32 mounted on the shaft 11. The arcuate recesses 25 and 30 face each other to hold the bearings 28 and 32 therebetween.
A heavy fiuid cylinder 33 secured to the end of the bracket 23 is provided with a piston rod 36 which engages the movable jaw 29 to urge this jaw toward the fixed jaw 24. A fluid supply 37 is connected through a pressure regulating valve or device 38 to the cylinder 33. By adjusting the pressure of the fiuid applied to the cylinder 33 the force applied to hold the shafts 11 and 12 against movement away from each other can be adjusted. This force should be sufiiciently great to hold the roll faces parallel to each other at the nip when a tow is passing between the rolls.
In operation, the fiuid cylinder applies a force to the movable jaw 29 to prevent movement of the shafts 11 and 21 away from each other. When it is desired to inspect, clean or replace the crimping rolls 13 and 14, the fluid pressure is lowered sufiiciently to allow manual movement of the movable arm or jaw'29 away from and clear of the bearing 32. The complete device 20 is then lifted off the shafts and set aside. After cleaning, etc., the device 20 is replaced on the shafts 11 and 12 and pressure again applied to the cylinder 33. It can be readily seen that removal or replacement of the device can be effected almost in seconds.
It is to be understood that the embodiment disclosed herein is merely illustrative and that numerous other embodiments can be contemplated without departing from the spirit and scope of the invention.
What is claimed is:
1. In a tow crimping apparatus having a pair of crimping rolls mounted on parallel drive shafts, a shaft supporting device comprising a bracket, a first arm secured to one end of the bracket and adapted to support one of said shafts, a second arm movably connected to the bracket for supporting the other shaft, said arms being positioned in facing relationship with the shafts therebetween, and means engaging the movable arm for urging said movable arm toward said fixed arm to prevent movement of the shafts away from each other when a bundle of filaments is passed between the rolls.
2. In a tow crimping apparatus having a pair of crimping rolls mounted on parallel drive shafts, a device for preventing movement of the shafts away from each other comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket extending across the shafts above said bearings, a first arm secured to one end of the bracket and having an arcuate recessfor receiving the outer race of the bearing on one of said shafts, a second arm movably mounted on the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the shafts therebetween, and means secured to the bracket for engaging and urging the movable arm toward the fixed arm to prevent movement of the shafts away from each other when a tow is passed between the rolls.
3. In a tow crimping apparatus having a pair of crimping rolls mounted on parallel drive shafts, a device for preventing movement of the shafts away from each other, comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket positioned above and extending across the shafts, a first arm secured to the bracket and having an arcuate recess for receiving the outer race of one of the bearings, a second arm pivotally secured to the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the bearings therebetween, and a fluid cylinder secured to the bracket and having a piston rod engaging the second arm for urging said second arm toward said first arm to prevent movement of the shafts away from each other when a tow is passed between the rolls.
4. In a tow crimping apparatus having a pair of crimping rolls mounted on parallel drive shafts, a device for preventing movement of the shafts away from each other, comprising a pair of bearings mounted on the shafts in front of the rolls, a bracket positioned above and ex- 3 tending across the shafts, a first arm secured to the bracket and having an arcuate recess for receiving the outer race of one of the bearings, a second arm pivotally secured to the bracket and having an arcuate recess for receiving the outer race of the other bearing, said arms being positioned in facing relationship with the bearings therebetween, and a fluid cylinder secured to the bracket and having a piston rod engaging the second armnfor urgin'g said second arm toward said first arm to prevent movement of the shafts away from each other when a tow is passed between the rolls, a pressure regulating device, and a source of fluid under pressure, said fluid source being connected through the regulating device to the cylinder.
References Cited in the file of this patent UNITED STATES PATENTS V Rainard Nov. 20, 1951 Winslow Jan. 6, 1953 Flint et all Feb. 3, 1959 Ohashi et al July 31, 1962 FOREIGN PATENTS Canada Aug. 14, 1962 Great Britain June 24, 1953 Italy D'ec.-1l, 1954

Claims (1)

1. IN A TOW CRIMPING APPARATUS HAVING A PAIR OF CRIMPING ROLLS MOUNTED ON PARALLEL DRIVE SHAFTS, A SHAFT SUPPORTING DEVICE COMPRISING A BRACKET, A FIRST ARM SECURED TO ONE END OF THE BRACKET AND ADAPTED TO SUPPORT ONE OF SAID SHAFTS, A SECOND ARM MOVABLY CONNECTED TO THE BRACKET FOR SUPPORTING THE OTHER SHAFT, SAID ARMS BEING POSITIONED IN FACING RELATIONSHIP WITH THE SHAFTS THEREBETWEEN, AND MEANS ENGAGING THE MOVABLE ARM FOR URGING SAID MOVABLE ARM TOWARD SAID FIXED ARM TO PREVENT MOVEMENT OF THE SHAFTS AWAY FROM EACH OTHER WHEN A BUNDLE OF FILAMENTS IS PASSED BETWEEN THE ROLLS.
US276821A 1963-04-30 1963-04-30 Textile crimpine device Expired - Lifetime US3162924A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460214A (en) * 1966-08-23 1969-08-12 Bancroft & Sons Co J High temperature stuffer crimping apparatus
US4041584A (en) * 1976-09-29 1977-08-16 E. I. Du Pont De Nemours And Company Loading apparatus for crimper rolls
EP0139832A2 (en) * 1983-09-08 1985-05-08 NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH Stuffer box crimping apparatus
US20070251208A1 (en) * 2004-10-01 2007-11-01 Jerry Lane Apparatus and method for texturizing yarn

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575839A (en) * 1948-12-15 1951-11-20 Alexander Smith Inc Process for crimping uncrosslinked fibers
US2624077A (en) * 1949-09-17 1953-01-06 Stevens & Co Inc J P Drafting frame
GB693252A (en) * 1950-03-31 1953-06-24 Interemin Sa Improvements relating to gill boxes
US2871519A (en) * 1955-10-12 1959-02-03 Granite Machine Company Pressure means for calender rolls
US3046633A (en) * 1959-03-16 1962-07-31 Chori Co Ltd Apparatus for producing crimped thermoplastic synthetic yarns
CA646676A (en) * 1950-05-31 1962-08-14 Rosenstein Nathan Crimping parallel filaments

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575839A (en) * 1948-12-15 1951-11-20 Alexander Smith Inc Process for crimping uncrosslinked fibers
US2624077A (en) * 1949-09-17 1953-01-06 Stevens & Co Inc J P Drafting frame
GB693252A (en) * 1950-03-31 1953-06-24 Interemin Sa Improvements relating to gill boxes
CA646676A (en) * 1950-05-31 1962-08-14 Rosenstein Nathan Crimping parallel filaments
US2871519A (en) * 1955-10-12 1959-02-03 Granite Machine Company Pressure means for calender rolls
US3046633A (en) * 1959-03-16 1962-07-31 Chori Co Ltd Apparatus for producing crimped thermoplastic synthetic yarns

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460214A (en) * 1966-08-23 1969-08-12 Bancroft & Sons Co J High temperature stuffer crimping apparatus
US4041584A (en) * 1976-09-29 1977-08-16 E. I. Du Pont De Nemours And Company Loading apparatus for crimper rolls
EP0139832A2 (en) * 1983-09-08 1985-05-08 NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH Stuffer box crimping apparatus
EP0139832A3 (en) * 1983-09-08 1986-03-05 Neumunstersche Maschinen- Und Apparatebau Gesellschaft Mbh. (Neumag) Stuffer box crimping apparatus
US20070251208A1 (en) * 2004-10-01 2007-11-01 Jerry Lane Apparatus and method for texturizing yarn
US7325284B2 (en) * 2004-10-01 2008-02-05 Jerry Lane Apparatus and method for texturizing yarn

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