US2696252A - Machine for spiral-cutting strips from circularly knitted stockinet fabrics - Google Patents

Machine for spiral-cutting strips from circularly knitted stockinet fabrics Download PDF

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US2696252A
US2696252A US247441A US24744151A US2696252A US 2696252 A US2696252 A US 2696252A US 247441 A US247441 A US 247441A US 24744151 A US24744151 A US 24744151A US 2696252 A US2696252 A US 2696252A
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United States
Prior art keywords
card
machine
fabric
stockinet
spiral
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Expired - Lifetime
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US247441A
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Rosen Karl Isac Joel
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Individual
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Publication date
Priority to GB27740/49A priority Critical patent/GB666113A/en
Priority to CH297379D priority patent/CH297379A/en
Application filed by Individual filed Critical Individual
Priority to US247441A priority patent/US2696252A/en
Priority to DER7316A priority patent/DE919946C/en
Priority to FR1078495D priority patent/FR1078495A/en
Application granted granted Critical
Publication of US2696252A publication Critical patent/US2696252A/en
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/10—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials obliquely
    • D06H7/12—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials obliquely cutting a tubular fabric helically
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/11—Bias [i.e., helically] cutting of tubular stock
    • Y10T29/1131—Bias [i.e., helically] cutting of tubular stock with means to feed stock along support or mandrel
    • Y10T29/115—Axially
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/11—Bias [i.e., helically] cutting of tubular stock
    • Y10T29/1131—Bias [i.e., helically] cutting of tubular stock with means to feed stock along support or mandrel
    • Y10T29/1156—Rotatably

Definitions

  • FIG.6 is a diagrammatic representation of FIG.6.
  • the present invention relates to a machine for cutting spiral strips from circularly knitted stockinet fabrics, the machine being so constructed as to cut up automatically a whole roll into a continuous strip of desired uniform width.
  • a machine for cutting spiral str1ps from a roll of circularly knitted stockinet fabric so as to produce a continuous strip of desired uniform width is characterized in that the feeding of the fabric is effected by means of cards disposed in the form of a circle, the cards having downwardly directed teeth.
  • F gure 1 is a side view of the lower part of the machine
  • F gure 2 is a side view of the upper part of the machine
  • Figure 3 is a perspective view of the main mechanism of the machine
  • Figure 4 is a plan view of the feeding device of the machine
  • Figure 5 is a section on the line 5-5 of Figure 4, and Figures 6 and 7 are front and sectional views respectively of the cards used in the machine.
  • the machine comprises a base 1 to which is secured a pair of uprights 2 (only one shown).
  • a shaft 3 supporting a frame 4.
  • a roller 5 on which is disposed a roll 6 of stockinet fabric.
  • the roller 5 is so disposed in the frame 4 as to be readily removable therefrom.
  • a roller 7 coated with emery cloth is rotatably mounted in supports 8, 8', carried by the frame 4. The roller 7 is adapted to engage the roll 6 of stockinet fabric.
  • the movement of the roller 7 may be checked by means of a spring 9 secured to the support 8, the position of the spring 9 being adjustable by means of an adjustment screw 10 disposed in the said support.
  • the stockinet fabric, when unrolled from the roller 5, passes over a guide bar 11 secured to the frame 4.
  • An arm 12 is secured to the uprights 2 and carries a motor 13 and a tube-formed bearing 14' with a flange 15 secured to its upper end.
  • a shaft 14 is journalled.
  • the motor 13 drives a worm 16 meshing with a worm wheel 17.
  • the worm wheel 17 carries a worm 18 which meshes with a worm Wheel 19 secured to the shaft 14.
  • To the flange 15 is secured a pair of brackets 20 which carry card lifting wheels 21.
  • a card bracket 22 having a flange 23 provided with a plurality of radial slots 23 ( Figures 4 and 5).
  • a circular recess 24 adapted to receive a ring 25.
  • Sixteen card levers 26 operating in the slots 23' are each provided with recesses 27, each recess being adapted to receive the ring and pivot thereabout.
  • the flange 23 has adjustment screws 28 disposed near its periphery, the adjustment screws serving to limit the downward motion of the card levers 26.
  • springs 29 which are secured to a spring plate 30 fast upon the shaft 14.
  • each card lever 26 To the outer end of each card lever 26 is secured a card 31 having downwardly directed yieldable wire teeth 32 and a protective frame 33 whose purpose is to prevent the teeth 32 from biting too deeply into the fabric and to reduce the friction against the fabric when the card is lifted in a manner to be hereinafter described.
  • a pulley 34 which by means of a belt 35 drives a second pulley 36 on which is Patented Dec. 7, 1954 disposed an eccentric 37 which drives a cutting device shown generally at 38.
  • the cutting device comprises a stationary and movable arm, each arm being provided with a knife which works towards the other in a clipping movement.
  • the cutting device works in accordance with the same principle as those normally employed in the special sewing machines used in the hosiery industry.
  • the cutting device shown is provided with a fork-shaped member 39, which serves to lead the fabric between the knives.
  • the fabric disposed on the roller 5 is led over the guide bar 11 and passes over a member (not shown) which gives it a tubular form.
  • the fabric indicated generally at 40, is fed over the cards 31.
  • the motor 13 When the motor 13 is started the card lift wheels 21 rotate and in passing underneath the card levers 26 cause the latter to be lifted and pivot about the ring 31.
  • the card lever When any particular card lever 26 is no longer in contact with a card lifting wheel 21, the card lever is restored to its normal position by means of its spring 29. In its upwards traverse the teeth 32 on the card lever 26 brush by but do not move the fabric since the said teeth point downwardly.
  • the downwardly pivoting and moving teeth 32 penetrate the stockinet fabric and pull it downwardly.
  • the cards 31 therefore serve as the feeding mechanism of the machine.
  • the rotation of the fabric against the cutting device 38 causes a continuous spiral strip 41 to be cut from the fabric, the strips being collected in suitable vessels or rolled up by special rolling devices.
  • the provision on the card levers 26 of a plurality of recesses 27 adapted to receive the ring 25 makes it possible to vary the circumference of the circle formed by the cards.
  • a device for feeding said fabric to the cutter element of the machine including a circular array of card means having downwardly directed yieldable wire teeth adapted to engage and move said fabric downwardly, means for rotating said circular array of card means about the axis of said array, spring means cooperative with each card for biasing the card to its down position, roller means engaging and raising said card means in succession upon rotation of said array of card means against the force exerted by said spring means and out of gripping engagement with said fabric, and a cutter device positioned adjacent said array of card means and presenting a cutting edge to the fabric below said array of card means and which cuts the fabric in strip form in a direction transverse to the feed direction thereof, the downward movement of the fabric per revolution of said array of card means being equal to the width of the strip cut off by said cutter device.
  • a feed device as defined in claim 2 wherein the means for effecting the radial adjustment in said card means is comprised of a ring of fixed diameter adapted to engage a selected one of a plurality of spaced grooves disposed longitudinally along said lever.
  • each of said card means includes a protective frame therefor to prevent the card from gripping the fabric too deeply and which also reduces the friction against the fabric when the card is raised.

Description

D 7, 1954 K. I. J. Ros'EN ,25
MACHINE FOR SPIRAL-CUTTING STRIPS FROM CIRCULARLY KNITTED STOCKINETTE maxxcs Filed "Sept. 20, 1951 s Sheets-Sheet 2 2| FI.G.2. Q,
a I 9 Lmlo l I ml Ja I 5 7 i 2 k q E II I 3 u I I H 'IIIIIIIIIIII EN 2,696,252 RIPS FROM CIRCULARLY .Dec. 7, 1954 K. J. R MACHINE FOR SPIRAL-CUTTING xmmzn STOCKINETTE FABRICS 3 Sheets-Sheet 3 Filed Sept. 20 1951 FIG.7.
FIG.6.
l7: Mew,
United States Patent MACHINE FOR SPIRAL-CUTTING STRIPS FROM CIRCULARLY KNITTED ST OCKINET FABRICS Karl Isac Joel Rosn, Ulricehamn, Sweden Application September 20, 1951, Serial No. 247,441
Claims. (Cl. 164-38) The present invention relates to a machine for cutting spiral strips from circularly knitted stockinet fabrics, the machine being so constructed as to cut up automatically a whole roll into a continuous strip of desired uniform width.
According to the invention, a machine for cutting spiral str1ps from a roll of circularly knitted stockinet fabric so as to produce a continuous strip of desired uniform width is characterized in that the feeding of the fabric is effected by means of cards disposed in the form of a circle, the cards having downwardly directed teeth.
The invention is illustrated in the accompanying drawings in which:
F gure 1 is a side view of the lower part of the machine,
F gure 2 is a side view of the upper part of the machine,
Figure 3 is a perspective view of the main mechanism of the machine,
Figure 4 is a plan view of the feeding device of the machine,
Figure 5 is a section on the line 5-5 of Figure 4, and Figures 6 and 7 are front and sectional views respectively of the cards used in the machine.
Referring to Figures 1 and 2, the machine comprises a base 1 to which is secured a pair of uprights 2 (only one shown). In an arm 2', secured to the top of the uprights 2 is journalled a shaft 3 supporting a frame 4. In the frame 4 is rotatably mounted a roller 5 on which is disposed a roll 6 of stockinet fabric. The roller 5 is so disposed in the frame 4 as to be readily removable therefrom. A roller 7 coated with emery cloth is rotatably mounted in supports 8, 8', carried by the frame 4. The roller 7 is adapted to engage the roll 6 of stockinet fabric. The movement of the roller 7 may be checked by means of a spring 9 secured to the support 8, the position of the spring 9 being adjustable by means of an adjustment screw 10 disposed in the said support. The stockinet fabric, when unrolled from the roller 5, passes over a guide bar 11 secured to the frame 4.
An arm 12 is secured to the uprights 2 and carries a motor 13 and a tube-formed bearing 14' with a flange 15 secured to its upper end. In this bearing a shaft 14 is journalled. The motor 13 drives a worm 16 meshing with a worm wheel 17. The worm wheel 17 carries a worm 18 which meshes with a worm Wheel 19 secured to the shaft 14. To the flange 15 is secured a pair of brackets 20 which carry card lifting wheels 21.
To the shaft 14 is secured a card bracket 22 having a flange 23 provided with a plurality of radial slots 23 (Figures 4 and 5). In the flange 23 is disposed a circular recess 24 adapted to receive a ring 25. Sixteen card levers 26 operating in the slots 23' are each provided with recesses 27, each recess being adapted to receive the ring and pivot thereabout. The flange 23 has adjustment screws 28 disposed near its periphery, the adjustment screws serving to limit the downward motion of the card levers 26. To the inner ends of the card levers 26 are secured springs 29 which are secured to a spring plate 30 fast upon the shaft 14. To the outer end of each card lever 26 is secured a card 31 having downwardly directed yieldable wire teeth 32 and a protective frame 33 whose purpose is to prevent the teeth 32 from biting too deeply into the fabric and to reduce the friction against the fabric when the card is lifted in a manner to be hereinafter described.
To the motor 13 is secured a pulley 34 which by means of a belt 35 drives a second pulley 36 on which is Patented Dec. 7, 1954 disposed an eccentric 37 which drives a cutting device shown generally at 38. The cutting device comprises a stationary and movable arm, each arm being provided with a knife which works towards the other in a clipping movement. The cutting device works in accordance with the same principle as those normally employed in the special sewing machines used in the hosiery industry. The cutting device shown, however, is provided with a fork-shaped member 39, which serves to lead the fabric between the knives.
In operation, the fabric disposed on the roller 5 is led over the guide bar 11 and passes over a member (not shown) which gives it a tubular form. The fabric, indicated generally at 40, is fed over the cards 31. When the motor 13 is started the card lift wheels 21 rotate and in passing underneath the card levers 26 cause the latter to be lifted and pivot about the ring 31. When any particular card lever 26 is no longer in contact with a card lifting wheel 21, the card lever is restored to its normal position by means of its spring 29. In its upwards traverse the teeth 32 on the card lever 26 brush by but do not move the fabric since the said teeth point downwardly. When, however, the card levers are restored under the action of the springs 29, the downwardly pivoting and moving teeth 32 penetrate the stockinet fabric and pull it downwardly. The cards 31 therefore serve as the feeding mechanism of the machine. The rotation of the fabric against the cutting device 38 causes a continuous spiral strip 41 to be cut from the fabric, the strips being collected in suitable vessels or rolled up by special rolling devices.
The provision on the card levers 26 of a plurality of recesses 27 adapted to receive the ring 25 makes it possible to vary the circumference of the circle formed by the cards.
Having now described my invention, what I claim as new and desire to secure by Letters Patent is:
1. In a machine for cutting a continuous spiral strip of selected uniform width from a roll of circularly knitted stockinet fabric, the combination comprising a device for feeding said fabric to the cutter element of the machine including a circular array of card means having downwardly directed yieldable wire teeth adapted to engage and move said fabric downwardly, means for rotating said circular array of card means about the axis of said array, spring means cooperative with each card for biasing the card to its down position, roller means engaging and raising said card means in succession upon rotation of said array of card means against the force exerted by said spring means and out of gripping engagement with said fabric, and a cutter device positioned adjacent said array of card means and presenting a cutting edge to the fabric below said array of card means and which cuts the fabric in strip form in a direction transverse to the feed direction thereof, the downward movement of the fabric per revolution of said array of card means being equal to the width of the strip cut off by said cutter device. 2. A feed device as defined in claim 1 wherein said card means are each comprised of a card carried at the outer end of a radially disposed pivoted lever and which further includes means for adjusting the pivot axis of each lever in a radial direction to thereby effect a corresponding adjustment in circumference of the circular array of said card means.
3. A feed device as defined in claim 2 wherein the means for effecting the radial adjustment in said card means is comprised of a ring of fixed diameter adapted to engage a selected one of a plurality of spaced grooves disposed longitudinally along said lever.
4. A feed device as defined in claim 1 wherein each of said card means includes a protective frame therefor to prevent the card from gripping the fabric too deeply and which also reduces the friction against the fabric when the card is raised.
5. A feed device as defined in claim 1 and which further includes adjustable stop means individual to each said card means arranged to engage and limit the feeding movement of each said card means.
(References on following page) 3 References Cited in the file of this patent %??582 UNITED STATES PATENTS 2,280,883 Number Name Date 905,207 Mitchel'IetaI Dec. 1, 1908 5 1,066,304 Mitchell et al'. July 1, 1913 Number 1,896,596 Seddon Feb. 7, 1933' 533,059
Name Date Warren Oct. 15, 1935 Bach Apr. 28, 1942 FOREIGN PATENTS Country Date Germany Sept. 8, 1931
US247441A 1948-10-29 1951-09-20 Machine for spiral-cutting strips from circularly knitted stockinet fabrics Expired - Lifetime US2696252A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB27740/49A GB666113A (en) 1948-10-29 1949-10-28 Improvements in machine for sprial-cutting strips from circularly woven stockinette fabrics
CH297379D CH297379A (en) 1951-09-20 1951-09-12 Device for the continuous, helical cutting of circular knitted tricot material.
US247441A US2696252A (en) 1948-10-29 1951-09-20 Machine for spiral-cutting strips from circularly knitted stockinet fabrics
DER7316A DE919946C (en) 1948-10-29 1951-10-06 Device for the continuous, helical cutting of circular knitted tricot material
FR1078495D FR1078495A (en) 1951-09-20 1953-03-12 Machine for cutting spiral bands from knitted fabric on a circular loom

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE666113X 1948-10-29
US247441A US2696252A (en) 1948-10-29 1951-09-20 Machine for spiral-cutting strips from circularly knitted stockinet fabrics
DER7316A DE919946C (en) 1948-10-29 1951-10-06 Device for the continuous, helical cutting of circular knitted tricot material

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895596A (en) * 1954-06-28 1959-07-21 Kuypers Joannes Andreas Apparatus for continuously feeding a band of textile or similar material
US2995021A (en) * 1959-04-22 1961-08-08 Burlington Industries Inc Method of slitting thermoplastic knitted fabric as it is being knitted
US3026599A (en) * 1959-09-03 1962-03-27 Leff Albert Fabric spreading and bias binding strip cutting device
US3500664A (en) * 1966-04-30 1970-03-17 Bentley Eng Co Ltd Fabric draw-off mechanism
US3521466A (en) * 1963-05-24 1970-07-21 Karl H Tannert Circular knitting machine
EP0113727B1 (en) * 1982-02-19 1986-09-24 Northern Food-line Machines K/S Band-saw

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905207A (en) * 1908-04-13 1908-12-01 Charles F Mitchell Cloth-cutting machine.
US1066304A (en) * 1912-09-19 1913-07-01 Charles F Mitchell Cloth-cutting machine.
DE533059C (en) * 1930-05-08 1931-09-08 Terrot Soehne G M B H C Goods take-off device with individually movable scrapers for circular knitting and circular knitting machines
US1896596A (en) * 1931-05-18 1933-02-07 Robert S Seddon Machine for producing bias weave fabric
US2017082A (en) * 1932-01-13 1935-10-15 Warren Carleton Knitting machine
US2280883A (en) * 1940-09-25 1942-04-28 Bach John Production of rubber threads

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905207A (en) * 1908-04-13 1908-12-01 Charles F Mitchell Cloth-cutting machine.
US1066304A (en) * 1912-09-19 1913-07-01 Charles F Mitchell Cloth-cutting machine.
DE533059C (en) * 1930-05-08 1931-09-08 Terrot Soehne G M B H C Goods take-off device with individually movable scrapers for circular knitting and circular knitting machines
US1896596A (en) * 1931-05-18 1933-02-07 Robert S Seddon Machine for producing bias weave fabric
US2017082A (en) * 1932-01-13 1935-10-15 Warren Carleton Knitting machine
US2280883A (en) * 1940-09-25 1942-04-28 Bach John Production of rubber threads

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895596A (en) * 1954-06-28 1959-07-21 Kuypers Joannes Andreas Apparatus for continuously feeding a band of textile or similar material
US2995021A (en) * 1959-04-22 1961-08-08 Burlington Industries Inc Method of slitting thermoplastic knitted fabric as it is being knitted
US3026599A (en) * 1959-09-03 1962-03-27 Leff Albert Fabric spreading and bias binding strip cutting device
US3521466A (en) * 1963-05-24 1970-07-21 Karl H Tannert Circular knitting machine
US3500664A (en) * 1966-04-30 1970-03-17 Bentley Eng Co Ltd Fabric draw-off mechanism
EP0113727B1 (en) * 1982-02-19 1986-09-24 Northern Food-line Machines K/S Band-saw

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DE919946C (en) 1954-11-08

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