EP0203036A1 - Mechanical device to be installed on textile machines for moving needles or punches - Google Patents
Mechanical device to be installed on textile machines for moving needles or punches Download PDFInfo
- Publication number
- EP0203036A1 EP0203036A1 EP86830096A EP86830096A EP0203036A1 EP 0203036 A1 EP0203036 A1 EP 0203036A1 EP 86830096 A EP86830096 A EP 86830096A EP 86830096 A EP86830096 A EP 86830096A EP 0203036 A1 EP0203036 A1 EP 0203036A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- mechanical device
- punches
- carriage
- textile machines
- 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.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/10—Needle beds
- D04B15/12—Shogging devices therefor
Definitions
- the subject of this patent application for an industrial invention is a mechanical device, to be installed on textile machines for the linear travel of needles or punches, so as to be able to carry out special knitting processes.
- Textile knitting machines for carrying out "V" necks, punching, tufting, braids, or any other processes, which require linear travel of the needles in synchronisation with the other machine functions are currently equipped by the manufacturers, with a special mechanism which consists of a crank mechanism, activated by the frame camshaft, intended to make a feed ratchet gear rotate, which in turn, sets off the rotation of a threaded bar, which is helicoidally coupled with a screw nut supporting the bar which sustains. the textile machine combs, which must be set in motion to be able to carry out complex processes.
- This feature of the.device at reference allows it to be installed in a simple, rapid and economical manner on existing machines without a device enabling them to carry out special processes.
- the device consists of a carriage to be coupled directly with the needle bar holder, which can be moved by a threaded bar with which it is helicoidally coupled.
- the threaded bar is set in rotation by a step motor, started by means of an electronically controlled device, on which any working programme -for the knitting process can be established at will.
- the mechanical device consists of a support box frame (1) , within which a carriage (3) can slide, guided by a bar (2).
- the carriage (3) is helicoidally coupled with a threaded bar (4), which is parallel to and underneath the above-mentioned guide bar (2).
- the threaded bar (4) is rotated by an electric step motor (5), externally flanged to the frame (1). It is also possible to rotate the threaded bar (4) manually, by means of a knob (6), connected to it and positioned on the outside of the frame (1), opposite the step motor (5).
- the carriage (3) hasasuitably shaped bracket (7) in front, to which part of the comb holder bar is to be hooked, and a small rod (8), which acts as a reference point for the position assumed by the carriage (3) during movement.
- Number (9) indicates a crown wheel, which is integral with a loose pulley (10), which is rotated by a drawing pulley (12) integral with the threaded bar (4), by means of a thoot- ed belt (11).
- the crown wheel (9) activates a magnetic sensor, fixed to the small bracket (13).
- the sensor detects the teeth, it informs the electronic control of the electric step motor (5) of the movement effected by the carriage (3), and therefore, indirectly, of the movement effected by the needle or punch holder bar.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Treatment Of Fiber Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
- The subject of this patent application for an industrial invention is a mechanical device, to be installed on textile machines for the linear travel of needles or punches, so as to be able to carry out special knitting processes. Textile knitting machines for carrying out "V" necks, punching, tufting, braids, or any other processes, which require linear travel of the needles in synchronisation with the other machine functions, are currently equipped by the manufacturers, with a special mechanism which consists of a crank mechanism, activated by the frame camshaft, intended to make a feed ratchet gear rotate, which in turn, sets off the rotation of a threaded bar, which is helicoidally coupled with a screw nut supporting the bar which sustains. the textile machine combs, which must be set in motion to be able to carry out complex processes.
- However, these mechanisms create problems, in as much as they are rather complicated and elaborate from a kine- matical point of view, and are therefore costly and delicate. Moreover, they have the added disadvantage of being extremely limited as regards functionality, mainly due to the fact that the movement of the needles is obtained by .means of a feed ratchet gear, activated by a crank mechanism with consequent feed angles, which cannot exceed the value of 180° and, therefore, only allow the carrying out of a limited number of processes and designs.
- Another considerable disadvantage of these mechanisms, is the fact that in order to return the needles, which are moved during working, to their original position, it is necessary to make the feed ratchet gear move backwards,as far as it has previously been made to move forwards. A considerable amount of time is wasted during these idle phases.
- These problems have always made it unadvisable and in any case, rather complicated, to install the above-mentioned mechanisms for moving the punches on textile machines,which were not originally equipped to effect "V" necks, punching, tufting, braids, etc.
- The above problems were taken into consideration in the mechanical device, as per the invention, which is able to rotate the bar on which the support screw nut of the needle bar holder is helicoidally coupled, with an autonomous movement without having to resort to coupling with the camshaft driving all the parts of the textile machine..
- This feature of the.device at reference, allows it to be installed in a simple, rapid and economical manner on existing machines without a device enabling them to carry out special processes.
- The device, according to the invention,consists of a carriage to be coupled directly with the needle bar holder, which can be moved by a threaded bar with which it is helicoidally coupled. The threaded bar is set in rotation by a step motor, started by means of an electronically controlled device, on which any working programme -for the knitting process can be established at will.
- It becomes clear how this new device overcomes the limited functions of the previous mechanisms, by the fact that the rectilinear movement of the carriage and consequently of the comb holder bar, can be effected in any direction and for any length of stroke.
- This is mainly due to the fact that the threaded bar, supporting the carriage itself, can freely effect any number of clockwise and anticlockwise turns, because it is autonomously activated by the step motor and nut by a feed ratchet gear, controlled indirectly by the textile machine camshaft.
- For.a clearer explanation, the description of the invention continues with reference to the attached drawing, for illustrative and not restrictive purposes, where:
- - Fig. 1 is the front view of the mechanical device, according to the invention;
- - Fig. 2-is the rear view.
- With reference to the attached drawing, the mechanical device at reference, consists of a support box frame (1) , within which a carriage (3) can slide, guided by a bar (2). The carriage (3) is helicoidally coupled with a threaded bar (4), which is parallel to and underneath the above-mentioned guide bar (2).
- The threaded bar (4) is rotated by an electric step motor (5), externally flanged to the frame (1). It is also possible to rotate the threaded bar (4) manually, by means of a knob (6), connected to it and positioned on the outside of the frame (1), opposite the step motor (5).
- The carriage (3)hasasuitably shaped bracket (7) in front, to which part of the comb holder bar is to be hooked, and a small rod (8), which acts as a reference point for the position assumed by the carriage (3) during movement.
- Number (9) indicates a crown wheel, which is integral with a loose pulley (10), which is rotated by a drawing pulley (12) integral with the threaded bar (4), by means of a thoot- ed belt (11).
- During rotation, the crown wheel (9) activates a magnetic sensor, fixed to the small bracket (13). When the sensor detects the teeth, it informs the electronic control of the electric step motor (5) of the movement effected by the carriage (3), and therefore, indirectly, of the movement effected by the needle or punch holder bar.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86830096T ATE45195T1 (en) | 1985-04-29 | 1986-04-22 | MECHANICAL DEVICE TO BE INSTALLED ON TEXTILE MACHINERY TO MOVE NEEDLES OR PINS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT61485 | 1985-04-29 | ||
IT00614/85A IT1187055B (en) | 1985-04-29 | 1985-04-29 | MECHANICAL DEVICE TO INSTALL ON TEXTILE MACHINES FOR THE MOVEMENT OF NEEDLES OR PUNCHES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0203036A1 true EP0203036A1 (en) | 1986-11-26 |
EP0203036B1 EP0203036B1 (en) | 1989-08-02 |
Family
ID=11292423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86830096A Expired EP0203036B1 (en) | 1985-04-29 | 1986-04-22 | Mechanical device to be installed on textile machines for moving needles or punches |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0203036B1 (en) |
AT (1) | ATE45195T1 (en) |
DE (1) | DE3664796D1 (en) |
IT (1) | IT1187055B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103114371A (en) * | 2013-01-21 | 2013-05-22 | 东莞市易丰纺织机械科技有限公司 | Computerized flat knitting machine with improved structure |
CN112813541A (en) * | 2021-01-28 | 2021-05-18 | 李威乐 | Special needle file of weaving with comb mechanism |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1253233A (en) * | 1959-10-14 | 1961-02-10 | Morat Gmbh Franz | Method and device for synchronizing a control carried out according to a defined work program |
US3762184A (en) * | 1972-05-01 | 1973-10-02 | Rome Knitting Mills Inc | Guide bar control mechanism for knitting machines |
US3783643A (en) * | 1972-04-13 | 1974-01-08 | Stibbe Monk Development Ltd | Knitting machines having linearly arranged needles |
FR2384048A1 (en) * | 1977-03-14 | 1978-10-13 | Dubied & Cie Sa E | PROCESS FOR KNITTING PANELS WITH A DETERMINED CONTOUR AND / OR INTARSIA-TYPE DRAWING AND DEVICE FOR IMPLEMENTING THE PROCESS |
GB2057716A (en) * | 1979-07-12 | 1981-04-01 | Shima Idea Center Co Ltd | Racking device for flat knitting machine |
DE2938388A1 (en) * | 1979-09-22 | 1981-04-02 | Schaffhauser Strickmaschinenfabrik, Schaffhausen | DEVICE FOR OFFSET THE NEEDLE BEDS OF FLAT KNITTING MACHINES |
DE3330150A1 (en) * | 1983-08-20 | 1985-03-07 | Gebr. Scheller GmbH, 7332 Eislingen | FLAT WASHER |
-
1985
- 1985-04-29 IT IT00614/85A patent/IT1187055B/en active
-
1986
- 1986-04-22 DE DE8686830096T patent/DE3664796D1/en not_active Expired
- 1986-04-22 AT AT86830096T patent/ATE45195T1/en active
- 1986-04-22 EP EP86830096A patent/EP0203036B1/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1253233A (en) * | 1959-10-14 | 1961-02-10 | Morat Gmbh Franz | Method and device for synchronizing a control carried out according to a defined work program |
US3783643A (en) * | 1972-04-13 | 1974-01-08 | Stibbe Monk Development Ltd | Knitting machines having linearly arranged needles |
US3762184A (en) * | 1972-05-01 | 1973-10-02 | Rome Knitting Mills Inc | Guide bar control mechanism for knitting machines |
FR2384048A1 (en) * | 1977-03-14 | 1978-10-13 | Dubied & Cie Sa E | PROCESS FOR KNITTING PANELS WITH A DETERMINED CONTOUR AND / OR INTARSIA-TYPE DRAWING AND DEVICE FOR IMPLEMENTING THE PROCESS |
GB2057716A (en) * | 1979-07-12 | 1981-04-01 | Shima Idea Center Co Ltd | Racking device for flat knitting machine |
DE2938388A1 (en) * | 1979-09-22 | 1981-04-02 | Schaffhauser Strickmaschinenfabrik, Schaffhausen | DEVICE FOR OFFSET THE NEEDLE BEDS OF FLAT KNITTING MACHINES |
DE3330150A1 (en) * | 1983-08-20 | 1985-03-07 | Gebr. Scheller GmbH, 7332 Eislingen | FLAT WASHER |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103114371A (en) * | 2013-01-21 | 2013-05-22 | 东莞市易丰纺织机械科技有限公司 | Computerized flat knitting machine with improved structure |
CN112813541A (en) * | 2021-01-28 | 2021-05-18 | 李威乐 | Special needle file of weaving with comb mechanism |
CN112813541B (en) * | 2021-01-28 | 2022-08-16 | 浙江唐创服装有限公司 | Special needle file of weaving with comb mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP0203036B1 (en) | 1989-08-02 |
ATE45195T1 (en) | 1989-08-15 |
IT1187055B (en) | 1987-12-16 |
DE3664796D1 (en) | 1989-09-07 |
IT8500614A0 (en) | 1985-04-29 |
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