CA2050759C - Auxiliary seizing and holding device for the toe of stockings, especially for automatic stocking inverting machines - Google Patents
Auxiliary seizing and holding device for the toe of stockings, especially for automatic stocking inverting machines Download PDFInfo
- Publication number
- CA2050759C CA2050759C CA002050759A CA2050759A CA2050759C CA 2050759 C CA2050759 C CA 2050759C CA 002050759 A CA002050759 A CA 002050759A CA 2050759 A CA2050759 A CA 2050759A CA 2050759 C CA2050759 C CA 2050759C
- Authority
- CA
- Canada
- Prior art keywords
- blade
- stocking
- toe
- interior
- seizing
- 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 - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06G—MECHANICAL OR PRESSURE CLEANING OF CARPETS, RUGS, SACKS, HIDES, OR OTHER SKIN OR TEXTILE ARTICLES OR FABRICS; TURNING INSIDE-OUT FLEXIBLE TUBULAR OR OTHER HOLLOW ARTICLES
- D06G3/00—Turning inside-out flexible tubular or other hollow articles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/42—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration
- D04B9/46—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof
- D04B9/48—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof non-run stockings
- D04B9/50—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof non-run stockings micromesh stockings
Abstract
Auxiliary seizing and holding device for the toe of a stocking, especially for automatic stocking inverting machines, comprising a blade onto which the stocking to be inverted is threaded, the blade being constituted of an internally hollow, tubular rod, having an upper opening placed in connection with suitable known suction means for creating, inside said blade, a vacuum, and having at least one opening at the lower and of said blade, by means of which said vacuum produces a suction action adapted for pulling and holding the toe of the stocking against the end of the blade for a predetermined cycle time.
Description
Auxiliary seizing and holding device for the toe of stocking-s, especially for automatic stocking inverting machines The subject of the present invention is an improved blade device for seizing and holding stockings, especially for automatic stockings, especially for automatic stocking inverting machines.
It is known that stockings may be produced by a cycle which provides the production of a tube which is then sewn in correspondence with the toe, with the stocking inside out, that is to say from the side which will remain inside during the use of said stocking, Also known in the art are machines adapted for automatically performing the inverting (turning inside out) of the stocking after said sewing has been effected, for the purpose of despatching the stocking to confectioning, already turned the right side out.
Such machines are known, for example, from Italian Patents nos. 1 160 526 and 1 175 756 in the name of the present Applicant, in which there is provided a moveable blade element, which is moved vertically downwards between pairs of rollers until it engages with the toe or "cap" of the stocking, which is then threaded and inverted on said blade element by said rollers, appropriately driven in rotation, arid is then unthreaded off the blade by the action of other rollers, also driven in rotation, and is then despatched, already inverted, to the final confectioning.
, CA 02050759 2002-12-23 During this cycle, which provides for the feed of the stocking by means of a pulling tongs unit from the stitcher and the subsequent closure of the rollers with simultaneous descent of the blade, it is, however, necessary to make the engagement of the tip of the blade with the toe of the stocking as certain and continuous as possible for the whale period of time necessary for the first pair of rollers to collect the stocking on the blade and commence inversion, bearing in mind that failure to invert even a single stocking of the batch will require the subsequent manual performance both of the inversion and of the insertion of same into the group of which it is a member.
The technical problem therefore arises of creating an improved device which shall make is possible to achieve, at the instant of commencement of the inversion, a reliable and continuous coupling with the toe of the stocking to be inverted (turned inside out), which shall be easy and economical to construct and be suitable for incorporation into machines already in use, without a need for substantial modification of said machines.
It is therefore an object of the present invention to obviate or mitigate the above problems.
According to the present invention there is provided an auxiliary stocking toe seizing and holding device for use in an automatic stocking inverting machines. The device including a blade onto which the stacking to be inverted is threaded. The blade comprises a tubular rod having a hollow interior and an upper opening to permit fluid flow to and from the interior. The blade has at least one lower opening at a lower end of said blade by means of which a pressure differential created in the interior may be applied to a toe of the stocking at the lower end for a predetermined cycle time.
Further details will be obtained from the fallowing description, with reference to the attached drawings, in which there are shown:
In Figure 1: the blade element viewed in the direction of arrow A of Fig 2, with the end partially in section;
It is known that stockings may be produced by a cycle which provides the production of a tube which is then sewn in correspondence with the toe, with the stocking inside out, that is to say from the side which will remain inside during the use of said stocking, Also known in the art are machines adapted for automatically performing the inverting (turning inside out) of the stocking after said sewing has been effected, for the purpose of despatching the stocking to confectioning, already turned the right side out.
Such machines are known, for example, from Italian Patents nos. 1 160 526 and 1 175 756 in the name of the present Applicant, in which there is provided a moveable blade element, which is moved vertically downwards between pairs of rollers until it engages with the toe or "cap" of the stocking, which is then threaded and inverted on said blade element by said rollers, appropriately driven in rotation, arid is then unthreaded off the blade by the action of other rollers, also driven in rotation, and is then despatched, already inverted, to the final confectioning.
, CA 02050759 2002-12-23 During this cycle, which provides for the feed of the stocking by means of a pulling tongs unit from the stitcher and the subsequent closure of the rollers with simultaneous descent of the blade, it is, however, necessary to make the engagement of the tip of the blade with the toe of the stocking as certain and continuous as possible for the whale period of time necessary for the first pair of rollers to collect the stocking on the blade and commence inversion, bearing in mind that failure to invert even a single stocking of the batch will require the subsequent manual performance both of the inversion and of the insertion of same into the group of which it is a member.
The technical problem therefore arises of creating an improved device which shall make is possible to achieve, at the instant of commencement of the inversion, a reliable and continuous coupling with the toe of the stocking to be inverted (turned inside out), which shall be easy and economical to construct and be suitable for incorporation into machines already in use, without a need for substantial modification of said machines.
It is therefore an object of the present invention to obviate or mitigate the above problems.
According to the present invention there is provided an auxiliary stocking toe seizing and holding device for use in an automatic stocking inverting machines. The device including a blade onto which the stacking to be inverted is threaded. The blade comprises a tubular rod having a hollow interior and an upper opening to permit fluid flow to and from the interior. The blade has at least one lower opening at a lower end of said blade by means of which a pressure differential created in the interior may be applied to a toe of the stocking at the lower end for a predetermined cycle time.
Further details will be obtained from the fallowing description, with reference to the attached drawings, in which there are shown:
In Figure 1: the blade element viewed in the direction of arrow A of Fig 2, with the end partially in section;
in Figure 2: the blade el~nt in section on the plane II-II of Fig. 1, and in Figure 3: a simplified schematic view of a r~chine for inverting stockings, with the device fitted.
As will be seen from the Figures, the device of the present invention, referenced generally 1, comprises a completely tubular blade having an upper part 2, close at the top, and continued by a blade part 3, the lower end 3a of which has rounded corners 4 and an opening 5 disposed at the tip of the blade l0 in t_he direction of the width of same.
Aproximately in the junction zone between the tubular part 2 and the blade part 3 there is fitted a portion of pipe 6, adapted to be connected to alternate suction devices, th~elves known and indicated in the Figure simply L5 by an arrow B.
In this way, as will be seen more easily seen fr~n Figure 3, when said suction means are set in operation, the entire blade el~ent is brought under sub-pressure with respect to the external envirornr~nt, thus creating a true 20 suction action at the opening 5 of the end 3a of the blade 3, which suction action draws the toe 8a of the stocking 8 towards the tip of the blade.
Said suction is synchronized With the instant at which the toe of the stocking is take between the feed rollers 9 and 10 and the blade has been lowered 25 until it coir~.s into contact with, or very near to, said toe of the stocking.
The duration of suction is regulated according to the length of the stocking, or, essentially, for the time required for reliably starting the threading of the stocking to be inverted onto the end of the blade, holding it until the 30 instant at which the counter-rotation of the rollers has performed the initial acctat~ulation of the stocking on the blade for the purpose of inverting it.
At this instant a sensor detects this accumulation and shuts of the suction, allowing the stocking to complete the inverting and discharge cycle.
As will be seen from the Figures, the device of the present invention, referenced generally 1, comprises a completely tubular blade having an upper part 2, close at the top, and continued by a blade part 3, the lower end 3a of which has rounded corners 4 and an opening 5 disposed at the tip of the blade l0 in t_he direction of the width of same.
Aproximately in the junction zone between the tubular part 2 and the blade part 3 there is fitted a portion of pipe 6, adapted to be connected to alternate suction devices, th~elves known and indicated in the Figure simply L5 by an arrow B.
In this way, as will be seen more easily seen fr~n Figure 3, when said suction means are set in operation, the entire blade el~ent is brought under sub-pressure with respect to the external envirornr~nt, thus creating a true 20 suction action at the opening 5 of the end 3a of the blade 3, which suction action draws the toe 8a of the stocking 8 towards the tip of the blade.
Said suction is synchronized With the instant at which the toe of the stocking is take between the feed rollers 9 and 10 and the blade has been lowered 25 until it coir~.s into contact with, or very near to, said toe of the stocking.
The duration of suction is regulated according to the length of the stocking, or, essentially, for the time required for reliably starting the threading of the stocking to be inverted onto the end of the blade, holding it until the 30 instant at which the counter-rotation of the rollers has performed the initial acctat~ulation of the stocking on the blade for the purpose of inverting it.
At this instant a sensor detects this accumulation and shuts of the suction, allowing the stocking to complete the inverting and discharge cycle.
The device according to this invention ~y also be used in the same machine, or in similar machines, for prcattoting the discharge of the stocking, when already inverted and still threaded on the blade. In such a case it is possible to fe=d pressurized air into the tubular blade, so that this air, issuing~at high speed frcan the opening 5, which may also be shaped to give a venturi effect, creates a blowing action adapted for revving the toe of the stocking fran the blade and promoting engag~ent of the stocking between the rollers 9 and 10 for removal, or said stocking, already inverted, may be unthreaded off the blade and despatched for collection dir=ctly by the blowing to of pressurized air without the intervention of the rollers.
It will be understood that many variants are possible of the shape of the hollow, tubular blade for exerting a suction and/or compression action on the toe of the stocking, and also that the means and duration of such actions may be varied, without thereby departing frcan the scope of the present invention.
It will be understood that many variants are possible of the shape of the hollow, tubular blade for exerting a suction and/or compression action on the toe of the stocking, and also that the means and duration of such actions may be varied, without thereby departing frcan the scope of the present invention.
Claims (7)
1. An auxiliary stocking toe seizing and holding device for use in an automatic stocking inverting machines, said device including a blade onto which the stocking to be inverted is threaded, said blade comprising a tubular rod therefore having a hollow interior and an upper opening to permit fluid flow to and from said interior, said blade having at least one lower opening at a lower end of said blade by means of which a pressure differential created in said interior may be applied to a toe of said stocking at said lower end for a predetermined cycle time.
2. A device according to claim 1, wherein said lower opening is disposed at a tip of said blade in the direction of its width.
3. A device according to claim 1 wherein said lower opening in said blade is disposed adjacent to a tip of said blade.
4. A device according to claim 1 wherein said pressure differential is created by application of a vacuum to said interior to hold said toe on said lower end.
5. A device according to claim 1, wherein said pressure differential is created by application of pressurized air to said interior of the blade, for the purpose of obtaining, upon removal of the said stocking, a high speed air flow and thereby facilitate the unthreading of the stocking from the blade.
6. A device according to any one of claims 1 to 5 wherein fluid flow through said upper opening is provided by a pump and operation of said pump is synchronised with insertion of said blade into said stocking.
7. A device according to anyone of claims 1 to 6, wherein said lower opening is shaped as a venturi tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21709U IT220144Z2 (en) | 1990-09-06 | 1990-09-06 | AUXILIARY DEVICE FOR TAKING AND RETAINING THE TOE OF STOCKINGS, ESPECIALLY FOR AUTOMATIC STOCKING MACHINES |
| IT21709B/90 | 1990-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2050759A1 CA2050759A1 (en) | 1992-03-07 |
| CA2050759C true CA2050759C (en) | 2003-12-30 |
Family
ID=11185753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002050759A Expired - Fee Related CA2050759C (en) | 1990-09-06 | 1991-09-05 | Auxiliary seizing and holding device for the toe of stockings, especially for automatic stocking inverting machines |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0478037A1 (en) |
| KR (1) | KR920006562A (en) |
| CA (1) | CA2050759C (en) |
| IL (1) | IL99408A0 (en) |
| IT (1) | IT220144Z2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001227B (en) * | 2018-06-26 | 2024-03-12 | 山东术衣博士消毒科技股份有限公司 | Device is examined to operation coat sleeve lamp |
| CN117311166B (en) * | 2023-11-08 | 2024-04-30 | 杭州大仁科技有限公司 | Self-adaptive control method and system for full-automatic integrated sock turning device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1144639A (en) * | 1967-11-03 | 1969-03-05 | Hall Textiles Mansfield Ltd | Improved apparatus for use in examining garments |
| US3730405A (en) * | 1971-06-22 | 1973-05-01 | M Ezell | Hosiery inspection apparatus |
| DE3217917A1 (en) * | 1982-05-12 | 1983-11-17 | Werner 4837 Verl Biedermann | Reversing machine for tubular articles |
| IT1160526B (en) * | 1983-03-09 | 1987-03-11 | Fadis Spa | MACHINE FOR REVERSING SOCKS WITH COUNTER-ROTATING ROLLERS WITH AUTOMATIC FEEDING |
| IT1175756B (en) * | 1984-09-28 | 1987-07-15 | Fadis Spa | AUTOMATIC MACHINE FOR REVOLVING SOCKS WITH MOBILE ROLLERS |
| US4903415A (en) * | 1987-10-12 | 1990-02-27 | Carmelo Angelo Cortese | Machine for flaw-checking and drying stockings and the like |
-
1990
- 1990-09-06 IT IT21709U patent/IT220144Z2/en active IP Right Grant
-
1991
- 1991-09-02 EP EP91202213A patent/EP0478037A1/en not_active Withdrawn
- 1991-09-05 CA CA002050759A patent/CA2050759C/en not_active Expired - Fee Related
- 1991-09-05 KR KR1019910015501A patent/KR920006562A/en active IP Right Grant
- 1991-09-05 IL IL99408A patent/IL99408A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0478037A1 (en) | 1992-04-01 |
| IT220144Z2 (en) | 1993-06-23 |
| IL99408A0 (en) | 1992-08-18 |
| IT9021709U1 (en) | 1992-03-06 |
| CA2050759A1 (en) | 1992-03-07 |
| IT9021709V0 (en) | 1990-09-06 |
| KR920006562A (en) | 1992-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20050906 |