EP0149295B1 - Apparatus for processing circular knit hosiery - Google Patents
Apparatus for processing circular knit hosiery Download PDFInfo
- Publication number
- EP0149295B1 EP0149295B1 EP19840300330 EP84300330A EP0149295B1 EP 0149295 B1 EP0149295 B1 EP 0149295B1 EP 19840300330 EP19840300330 EP 19840300330 EP 84300330 A EP84300330 A EP 84300330A EP 0149295 B1 EP0149295 B1 EP 0149295B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hose
- unit
- knit
- knit hose
- clamp
- 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
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Classifications
-
- 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
- D06H3/00—Inspecting textile materials
- D06H3/16—Inspecting hosiery or other tubular fabric; Inspecting in combination with turning inside-out, classifying, or other handling
- D06H3/165—Devices for supplying, removing or stacking the work
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B19/00—Unravelling knitted fabrics
Definitions
- a long continuous knit hose band 1 is fed from a double cylinder knitting machine (not shown) to an air suction pipe 2.
- the forward end of the knit hose 1 is placed around a 'tail' end of the pipe 2 by an operator as shown in Figure 1.
- the reference numeral 3 designates a pair of contact rollers, which are capable of rolling on the air suction pipe 2 while keeping contact with the surface thereof, whereby the knit hose 1 is caused to slide over the surface of the air suction pipe 2 towards a'top end' thereof until the forward end of the knit hose reaches the depth of the air suction pipe 2.
- the free end of the knit hose 1 projects slightly beyond the tail end of the air suction pipe 2.
- the forward end of a long continuous knit hose band 1 is placed around the'tail end' of the suction pipe 2 by hand.
- the contact rollers 3 are energised to rotate them and thereby advance them to the 'tail end' of the suction pipe 2, before returning along the length of the suction pipe 2 pulling the knit hose band by friction as they do so.
- the free end of the knit hose band 1 slightly projects beyond the 'tail end' of the suction pipe 2.
- the pipe 2 is evacuated, thereby causing the free end of the knit hose band to be sucked into the suction pipe 2. In this way the knit hose is turned inside out.
Description
- The invention relates to apparatus for processing circular knit hosiery.
- In the production of hosiery, such as stockings and socks, a commonly called "rib knitter" or a double cylinder knitting machine is employed to knit a long continuous circular hose. The long continuous hose band must then be sectioned into unit hoses with waste portions interposed between adjacent unit hoses. The stitches around the sectioned part are picked up by the operator's fingers. This is an extremely time-consuming operation, which of course reflects in the price of the product.
- In addition, to effect the subsequent linking operation on each toe, it is necessary first to turn each hose inside out. After the linking operation is finished, the normal side must be turned back outside again to enable the unit hose to be vapour set. This is also very time-consuming.
- According to the invention, there is provided apparatus for processing a circular knit hose, characterised by an air suction pipe through which a long knit hose can be pulled by air suction to turn the long knit hose inside out; a cutter unit mounted on a movable carrier and having means to stretch the knit hose at successive positions along the hose at which cutting is desired and to effect cutting to section the long knit hose into unit hose; an apron conveyor having transverse slats with each of the slats at one end mounting a hollow cylinder on which one of the unit hose can be supported and at the other end mounting a clamp unit, which clamp unit can clamp a toe portion of the unit hose and is pivoted so that it can be tilted toward the cylinder thereby presenting the toe portion of the unit hose to a linking device which is located adjacent the conveyor and which can link each toe portion with stitches; means for returning the clamp unit to an untilted position and for releasing the knit hose; and a suction duct, successively communicatable with the rear end of each of the cylinders at a position at which the conveyor changes direction, for extracting the unit hose by suction through the respective hollow cylinder thereby turning the unit hose rightwards out.
- Such apparatus can facilitate turning of a circular knit hose inside out, sectioning it into a required number of unit hoses, closing each toe thereof, and turning the normal side out again in an automatic manner.
- The invention is diagrammatically illustrated by way of example in the accompanying drawings, in which:
- Figure 1 is a plan view showing apparatus according to the invention;
- Figure 2 is a plan view on an enlarged scale of the portion of Figure 1 indicated at II, at which knit hose is stretched for cutting;
- Figure 3 is a front view on an enlarged scale of a cutter unit of apparatus according to the invention;
- Figure 4 is a fragmentary left side view of the cutter unit of Figure 3;
- Figure 5 is a front view on an enlarged scale of a guide unit;
- Figure 6 is a left side view of the guide unit of Figure 5;
- Figure 7 is a plan view showing one section of an apron conveyor of apparatus according to the invention in which a slat is provided to support a hollow cylinder and a clamp unit;
- Figure 8 is a right side view of the section shown in Figure 7;
- Figure 9 is a front view, partly omitted, of the section shown in Figure 7;
- Figure 10 is a schematic view showing the relationship between a guide unit and a clamp unit of apparatus according to the invention;
- Figure 11 is a schematic view showing knit hose stretched by engagers of apparatus according to the invention;
- Figure 12 is a schematic view showing the clamp unit of Figure 11 holding a sectioned unit hose;
- Figure 13 is a schematic view showing the clamp unit of Figure 12 is tilted at 90° thereby to cause the toe portion of the hose to stand upright for stitching;
- Figure 14 is a plan view corresponding to Figure 13;
- Figure 15 is a schematic view showing the operation of the clamp unit of Figure 11; and
- Figure 16 is a schematic view showing the relationship of the clamp unit of Figure 11 and a pushing rod.
- Referring to Figure 1, a long continuous knit hose band 1 is fed from a double cylinder knitting machine (not shown) to an
air suction pipe 2. The forward end of the knit hose 1 is placed around a 'tail' end of thepipe 2 by an operator as shown in Figure 1. Thereference numeral 3 designates a pair of contact rollers, which are capable of rolling on theair suction pipe 2 while keeping contact with the surface thereof, whereby the knit hose 1 is caused to slide over the surface of theair suction pipe 2 towards a'top end' thereof until the forward end of the knit hose reaches the depth of theair suction pipe 2. At this stage the free end of the knit hose 1 projects slightly beyond the tail end of theair suction pipe 2. When vacuum is applied to thepipe 2, the knit hose 1 is sucked into theair suction pipe 2. The air suction device is of known kind and further description thereof is thus not required. The knit hose 1 which is turned inside out is taken out at an outlet 4 by an operator. The apparatus described so far constitutes a knithose turning section 5. - Referring to Figures 1 and 2, there is provided a
bed 6 on which acrank disc 7 coupled to a driving shaft of an electric motor M1 is mounted. - The
crank disc 7 has one end of arod 8 connected thereto with the other end of therod 8 connected to acarrier 10 so as to be capable of moving it along apairof rails 9 provided on thebed 6. - The free end of the knit hose band 1 is provided with a toe portion l'and a welt portion 1" between which the knit hose is additionally provided with a separating section 11 (Figure 11). The separating section 11 is sufficiently thin to produce steps at the transition positions to the toe portion 1` and the welt portion 1 ". The steps are engaged by an
upper engager 12 having anupper cutter 12', and a lower engager 13 having a lower cutter 13'. As shown in Figures 2 and 3, theupper engager 12 and thelower engager 13 are mounted on thecarrier 10, with theupper engager 12 supported on abracket 14 such that the height of theupper engager 12 is adjustable with respect to the knit hose 1, whereas thelower engager 13 is fixed to thecarrier 10. A cutting blade 15 (Figure 3) is pivotally supported on thecarrier 10. Thecutting blade 15 is connected by means of a connecting rod 15' to acrank rod 17 of acrank disc 16 driven by an electric motor M2. - In a guide unit shown in Figures 5 and 6, an
upper guide 18 is provided alongside theupper engager 12, theguide 18 being supported on abracket 20 perpendicular to thebed 6 such that the height thereof is adjustable with respect to the knit hose 1. Likewise, there is provided alower guide 19 slightly spaced from theupper guide 18, thelower guide 19 being fixed to thebed 6. The positional relationship of theengagers guide members lower cutters 12' and 13', and between the upper and thelower guides guides engagers cutting blade 15. - An
apron conveyor 21 comprises a series ofslats 22 and, as best shown in Figure 8, eachslat 22 is provided with a pair ofbrackets 23 at the end thereof forming the inner side of the conveyor, thebrackets 23 pivotally supporting afirst plate member 26 to which asecond plate member 25 is pivotally coupled. The twoplate members second plate member 25 is provided with arecess 25' at its top end as shown in Figure 9, which recess 25' is engaged by ametal piece 27 fixed to an end face of thefirst plate member 26 so as to secure the union of the twoplate members second plate member 25 is additionally provided with a projectingpart 25" at the opposite end, which is engaged by aspring member 28 fixed to the opposite end face of thefirst plate member 25. Due to the engagement by thespring member 28 thesecond plate member 25 is biassed upwardly. The contacting faces of the twoplate members - In addition to one of the
clamp units 30, eachslat 22 is provided with ashort cylinder 24 at the end of the slat opposite to that at which thebrackets 23 are provided, that is at the outer side of theapron conveyor 21, theshort cylinder 24 extending parallel to the top surface of therespective slat 22 but spaced therefrom as best shown in Figure 8. Theshort cylinder 24 is used to support a unit knit hose 1 which is placed around it. Theshort cylinder 24 can be supported by a suitable bracket or other known means. - At the position indicated 11 in Figure 1, an electric motor M3 is supported on a stand on the
carrier 10 as shown in Figure 15, and acam plate 29 is coupled to the shaft of the motor M3. Thecam.plate 29 comes into contact with thesecond plate member 25 during rotation, thereby bringing thesecond plate member 25 into engagement with thefirst plate member 26. In this way the twoplate members clamp units 30 and transported to a position III (Figure 1). At the position III anangled rail 31 is provided on thebed 6, at a position adjacent to the path along which theclamp units 30 pass. Therail 31 is effective to push eachclamp unit 30 toward its respectiveshort cylinder 24 causing it to tilt inwardly as shown in Figure 16. When theclamp unit 30 has been half tilted, gravity acts to tilt it the remainder. The toe portion 1' is then upwardly directed which is a suitable posture for the toe portion to be in while it is linked with stitches. - Figures 8 and 9
show carriers 40 linked to each other so as to support theslats 22.Cams 41 are located at opposite sides of theconveyor 21, whereby the toe portion 1 of a knit hose passing beneath the linkingdevice 32 can be raised so as to facilitate the linking operation. - A linking
device 32 located above theapron conveyor 21 stitches the toe portion 1'. The linkingdevice 32 includes acrank disc 33 located at the position IV of Figure 1 and apush rod 34 reciprocally moved in association with the rotation of thecrank disc 33 while keeping contact with the periphery of thecrank disc 33, thepush rod 34 passing through thebed 6 at a diagonally upward inclination as shown in Figure 8. Thepush rod 34 causes theclamp unit 30 to return to the upright position when theclamp unit 30 reaches the position IV and the toe portion l' clamped therein had had its open end stitched. Thepush rod 34 further advances, and raises thesecond plate member 25 so as to disengage it from thefirst plate member 26. In this way the knit hose 1 is released from theclamp unit 30 but is still supported on theshort cylinder 24 and reaches the position V. - At the position V there is provided a
suction duct 37 to turn the knit hose 1 inside out such that its outer side again comes outside. The reference numeral 37' designates a catcher reciprocally moved by means of acrank rod 36 pivoted on acrank disc 35, the catcher 37' being connected to thesuction duct 37. The catcher 37' comes successively into engagement with the rear end of eachshort cylinder 24 as shown in Figure 1. - At the position V where, as a result of the movement of the
conveyor 21, the plane of eachslat 22 changes in orientation from horizontal to vertical, there is provided arotor 38 driven by a motor M4, the rotor causing, by friction, knit hose supported on the respectiveshort cylinder 24 to advance toward the free end of the cylinder. At this stage theshort cylinder 24 is in communication with thesuction duct 37 via the catcher 37'. The knit hose 1 overhanging the open inner end of thecylinder 24 is ready to be sucked into thesuction duct 37 under vacuum. Abracket 39 on which the motor M4 is mounted is movable by a motor Ms so that therotor 38 can be engaged with the knit hose on theshort cylinder 24 or disengaged therefrom. - In operation, the forward end of a long continuous knit hose band 1 is placed around the'tail end' of the
suction pipe 2 by hand. Thecontact rollers 3 are energised to rotate them and thereby advance them to the 'tail end' of thesuction pipe 2, before returning along the length of thesuction pipe 2 pulling the knit hose band by friction as they do so. At this stage the free end of the knit hose band 1 slightly projects beyond the 'tail end' of thesuction pipe 2. Then thepipe 2 is evacuated, thereby causing the free end of the knit hose band to be sucked into thesuction pipe 2. In this way the knit hose is turned inside out. Thecontact rollers 3 are reversely rotated and advanced so as to facilitate the long knit hose band 1 being sucked into thepipe 2. The inside out turned knit hose band 1 is taken out of the outlet 4 by the operator and at the position I (Figure 1) is engaged on one of theshort cylinders 24. At the position II the separating section 11 of the knit hose 1 engages between the upper and thelower cutters 12', 13', and between the upper and the lower guides 18,19. The motor M1 is switched on, and thecarrier 10 is moved, thereby causing theengagers guides cam plate 29 is rotated, thereby pressing thesecond plate member 25 against thefirst plate member 26 so as to hold the toe portion 1' of the knit hose therebetween. Then motor M2 is switched on, and thecutting blade 15 cuts the knit hose in its separating section 11 at the position III. Theclamp unit 30 continues to hold the knit hose 1, and at the position IV theclamp unit 30 comes into engagement with therail 31, whereby theclamp unit 30 is tilted through 90° to cause the toe portion 1' to be directed upwards. At this moment therelevant slat 22 is raised toward the linkingdevice 32 by the action of thecams 41 and the linking operation effected on the toe portion 1'. When theclamp unit 30 comes into engagement with thepush rod 34 at the position IV, theclamp unit 30 is returned to the upright position, and thepush rod 34 raises thesecond plate member 25 thereby to release the toe portion 1' from theclamp unit 30. - When the knit hose 1 held on the
short cylinder 24 reaches the position V, the motor M5 is switched on, and therotor 38 is moved above theshort cylinder 24. Simultaneously, the catcher 37' is engaged with the rear end of theshort cylinder 24 so as to secure internal communication therebetween. When thesuction duct 37 is connected to theshort cylinder 24 through the catcher 37', the motor M4 is switched on, and therotor 38 is rotated in the direction in which the toe portion 1' is displaced toward the forward opening of the short cylinder by friction. The suction is started through thesuction duct 37 and the knit hose 1 is turned inside out again so that its normal outer side comes outside.
Claims (2)
- Apparatus for processing a circular knit hose, characterised by an air suction pipe (2) through which a long knit hose (1) can be pulled by air suction to turn the long knit hose (1) inside out; a cutter unit (12', 13', 15) mounted on a movable carrier and having means (12, 13) to stretch the knit hose (1) at successive positions along the hose (1) at which cutting is desired and to effect cutting to section the long knit hose into unit hose; an apron conveyor (21) having transverse slats (22) with each of the slats (22) at one end mounting a hollow cylinder (24) on which one of the unit hose can be supported and at the other end mounting a clamp unit (30), which clamp unit (30) can clamp a toe portion (1') of the unit hose and is pivoted so that it can be tilted toward the cylinder (24) thereby presenting the toe portion (1') of the unit hose to a linking device (32) which is located adjacent the conveyor (21) and which can link each toe portion with stitches; means (34) for returning the clamp unit (30) to an untilted position and for releasing the knit hose; and a suction duct (37), successively communicatable with the rear end of each of the cylinders (24) at a position at which the conveyor (21) changes direction, for extracting the unit hose by suction through the respective hollow cylinder (24) thereby turning the unit hose rightwards out.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19840300330 EP0149295B1 (en) | 1984-01-19 | 1984-01-19 | Apparatus for processing circular knit hosiery |
DE8484300330T DE3474699D1 (en) | 1984-01-19 | 1984-01-19 | Apparatus for processing circular knit hosiery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19840300330 EP0149295B1 (en) | 1984-01-19 | 1984-01-19 | Apparatus for processing circular knit hosiery |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0149295A1 EP0149295A1 (en) | 1985-07-24 |
EP0149295B1 true EP0149295B1 (en) | 1988-10-19 |
Family
ID=8192536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840300330 Expired EP0149295B1 (en) | 1984-01-19 | 1984-01-19 | Apparatus for processing circular knit hosiery |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0149295B1 (en) |
DE (1) | DE3474699D1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1262487B (en) * | 1993-07-30 | 1996-06-28 | Andrea Conti | METHOD OF MANUFACTURE OF SOCK MANUFACTURES, MODIFIED WEAVING AND SEWING MACHINES |
CN104073978A (en) * | 2013-08-27 | 2014-10-01 | 海宁阳光袜业有限公司 | Sock sewing device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS544308B2 (en) * | 1973-02-05 | 1979-03-05 | ||
JPS5416264B2 (en) * | 1973-12-28 | 1979-06-21 | ||
US3949913A (en) * | 1974-11-26 | 1976-04-13 | Marvel Specialty Company | Hosiery handling system with u-shaped form |
US4157651A (en) * | 1977-04-27 | 1979-06-12 | Speizman Industries | Method and means for separately collecting closed toe stockings and waste therefrom |
FR2435553A1 (en) * | 1978-09-05 | 1980-04-04 | Bonnal Sa Bonneterie Alsacienn | MACHINE FOR SEPARATING BY BREAKAGE OF TUBULAR TEXTILE ARTICLES BANDS ASSEMBLED BY FRAGILE YARNS |
-
1984
- 1984-01-19 EP EP19840300330 patent/EP0149295B1/en not_active Expired
- 1984-01-19 DE DE8484300330T patent/DE3474699D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3474699D1 (en) | 1988-11-24 |
EP0149295A1 (en) | 1985-07-24 |
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