WO2002079552A1 - Mecanisme de commande de la levee d'une lisse pour un metier jacquard - Google Patents

Mecanisme de commande de la levee d'une lisse pour un metier jacquard Download PDF

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Publication number
WO2002079552A1
WO2002079552A1 PCT/CN2002/000228 CN0200228W WO02079552A1 WO 2002079552 A1 WO2002079552 A1 WO 2002079552A1 CN 0200228 W CN0200228 W CN 0200228W WO 02079552 A1 WO02079552 A1 WO 02079552A1
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WO
WIPO (PCT)
Prior art keywords
hook
armature
vertical
piezoelectric element
needle
Prior art date
Application number
PCT/CN2002/000228
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English (en)
Chinese (zh)
Inventor
Hailin Zhang
Original Assignee
Hailin Zhang
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hailin Zhang filed Critical Hailin Zhang
Publication of WO2002079552A1 publication Critical patent/WO2002079552A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards

Definitions

  • the invention relates to a jacquard control device of a jacquard machine, which is suitable for an electronic jacquard machine with various opening mechanisms.
  • the traditional jacquard machine is mechanical needle selection, and the computer-controlled electromagnet needle selection is electronic.
  • the CN2271538Y patent provides a direct connection between the vertical needle and the armature, which is directly lifted by the suction force of the armature, and a pendulum mechanism and a pawl are provided to eliminate the hysteresis.
  • the problem is that the suction force of the electromagnet with large power consumption is also difficult to meet the vertical needle lifting force (1.2daN).
  • the CN1215770A patent provides an electromagnet-operated jacquard needle for lifting and lowering and swinging a vertical hook to overcome the above problems.
  • the vertical needle is lifted or lowered by the jacquard opening mechanism.
  • the vertical needle lifting capacity is large, the patent has the problem of adding a small opening mechanism and a lateral movement mechanism.
  • the electronic jacquard machine produced by the British company Bonas is world-famous. Its structure is that the core of the electromagnet acts on the steel vertical needle. The suction force generated by the electromagnet is attracted to the hook. The electromagnet is not energized and the vertical hook is not attracted to the hook. The structure is very simple. The problem is the electromagnet.
  • the power consumption is relatively large, because the suction force of the electromagnet is inversely proportional to the air gap S 2 of its suction surface. Therefore, its control circuit contains a timing circuit. If the electromagnet is energized for more than one minute, the timing circuit will disconnect all electromagnets, which is sufficient to indicate that the electromagnet consumes large power.
  • the DE4028390A1 patent provides a Jack-type control device, which uses an angled two-armed joystick that rotates around a rotation axis. One arm supports the armature and the other arm is a hook. The armature and the core are closed by the ejector lever when it is raised to the highest position. . There are two types of control provided.
  • the problem is that the tension of the spring always tries to open the armature and the core.
  • the vertical needle occasionally moves upwards. 2 -3, the hook is higher than the hook, the tension of the spring forces the armature and the core to open, which shows poor stability.
  • the other is the hook that does not hook the vertical needle when the armature and the core are closed. Its structure is simple and reasonable. It has a strong ability to pull up, the power required by the electromagnet is small, and the problem is that the hysteresis causes malfunction.
  • CN1189547A is to provide two joystick solutions for hysteresis-induced misoperation to reduce the abrasion of the opposite surface of the armature and the core and add a thin layer of non-magnetic material about 10 um on the opposite surface of the core and the armature.
  • the problem is that it can not effectively overcome the hysteresis problem, because hysteresis is a physical property of magnetic materials, and the thin layer of non-magnetic material increases the gap between the armature and the core, which reduces the hysteresis attraction and also reduces the attraction force when the electromagnet is energized. Insufficient suction can also cause malfunction.
  • armature and iron core After a single hit, a thin layer of non-magnetic material will also thin or fall off. In this way, the hysteresis still increases and causes malfunction. Swiss
  • Stubli is also a well-known manufacturer of electronic jacquard machines. Its structural principle is similar to DE4028390A1, with two differences, one is that it can rotate around the axis of rotation is a straight arm joystick, and the other is to push the armature and core to close is the tongue on the vertical hook Spring pushes the hook. In order to overcome the hysteresis, the tension of the spring must be increased, and the suction of the electromagnet must be increased. Compared with the electromagnet that directly attracts the armature movement, it still has a particularly low energy consumption (3.5 w / piece).
  • the object of the present invention is to provide a lifting control device for a jacquard machine, which uses a protruding head component or a piezoelectric element.
  • the device has a simple structure, small size, accurate operation, and extremely low power consumption.
  • the device is composed of an iron core, a coil, an armature, a spring, an upper frame, and a vertical needle.
  • a rotating shaft is installed on the iron core.
  • Electromagnet The iron core of the electromagnet is fixed on the upper frame of the opening mechanism or the upper frame of the frame, and the hook fixed on the non-suction surface of the armature. The angle between the hook and the armature is less than 90 °.
  • the armature is opened to the limit point by the spring tension and the core is opened, and the hook lever is vertically downward.
  • the pallet rises to the highest position, and the top of the hook pushes the tongue spring on the hook to turn the hook to the position where the hook cannot reach the hook and close the armature and the core.
  • the solenoid coil is energized, the armature remains closed with the core, and when the pallet moves downward until the hook is lower than the hook, the coil is powered off, and the armature is still attracted by the hysteresis and closed with the core due to the small spring tension.
  • the present invention has the following advantages and effects: simple structure, small size, convenient operation, The action is accurate and reliable, especially the energy consumption of the electromagnet is extremely small, which is suitable for high-speed operation.
  • the power supply voltage of the electromagnet is 4.3V
  • the current is 12raA
  • the energy consumption of the electromagnet is only 0.05 w / piece, which is one-seventh of 3.5 w / piece. Piezoelectric power consumption is also small.
  • FIG. 1 is a schematic structural diagram of a lifting control device of a jacquard machine.
  • FIG. 2 is a schematic structural diagram of a lifting control device of a jacquard machine.
  • Fig. 3 is a schematic diagram of a state where no voltage is applied to the hoisting control device operated by the piezoelectric element.
  • Fig. 4 is a schematic diagram of a voltage application state of the integrated control device operated by the piezoelectric element. detailed description
  • the structure is composed of a core 1, a coil 2, an armature 3, and a spring 4.
  • a rotating shaft 5 is mounted on the core 1, and the armature 3 can rotate around the shaft 5 to form a snap-in electromagnetic with the core 1 coil 2 and the spring 4.
  • the iron core 1 of the electromagnet is fixed on the upper frame of the opening mechanism or the upper frame of the frame, the hook 6 fixed on the non-suction surface of the armature 3, and the angle between the hook 6 and the armature 3 is less than 90 °.
  • the armature 3 is opened by the tension of the spring 4 and the core 1 is opened to the limit point 7, and the hook 6 is vertically downward.
  • a tongue spring 16 protruding obliquely upward is provided on the inner side of the hook 6 rod.
  • a hook 11 and a rod 12 are mounted on the upper end of the vertical needle 9.
  • the rod 12 is higher than the hook 11.
  • a protruding head 15 is mounted on the side of the vertical rod 12.
  • the vertical bar 12 can also be mounted on the pallet 10.
  • the needle bar 13 of the vertical needle 9 can move up and down through the vertical pin hole 14 of the supporting plate 10, and the hook 11 and the vertical rod 12 are supported on the supporting plate 10.
  • the hooks of the hook 11 and the hooks of the hook 6 are engaged with each other in a vertical motion line.
  • the supporting plate 10 is raised to the highest position, and the top end of the hook 11 pushes the tongue spring 16 on the hook 6 so that the hook 6 is turned to a position where the hook 11 cannot be hooked and the armature 3 and the core 1 are closed. That is, the hook 6 leaves the track A area of the vertical movement of the hook 11. Its back enters the area B of the locus 15 of the vertical movement of the head 15.
  • the solenoid 2 is energized, the armature 3 remains closed with the core 1, and when the pallet 10 moves downward to the hook 11 lower than the hook 6, the coil 2 is powered off, and the armature 3 is still attracted by the hysteresis due to the small tension of the spring 4.
  • the armature 3 is opened to the limit point 7, the hook 11 is slightly lowered and then caught by the hook 6 entering the A area.
  • the vertical needle 9 stays in the high position, and the pallet 10 is lowered to the lowest position.
  • the lifting control device completes the lifting function.
  • the structure is slightly different from that in FIG. 1:
  • the hook 6 is connected to the rotating shaft 5, the rotating shaft 5 is connected to the upper frame 8, the armature 3 is connected to the tie rod 18, the tie rod 18 has a protrusion 23, and the tie rod 18 moves up and down to limit the position.
  • the elastic vertical rod 12 pushes the pull rod 18 upward to close the armature 3 and the core 1 while pushing the hook 6—the arm makes the hook 6 out of the vertical movement track A area of the hook 11.
  • the tension rod 18 is lowered to the limit point 7 by the tension of the spring 4.
  • the upper frame 8 is fixed to the tension spring 20, and the tension spring 20 is connected to the plate 17.
  • the lower end of the plate 17 is connected to the steel wire 21, the steel wire 21 passes through the hole 19 of the pallet 10, and an elastic member 22 is fixed at the lower end of the wire 21, and its function is:
  • the armature 3 whose suction force is still sucked by the iron core.
  • the pull-up control device operated by a piezoelectric element includes a piezoelectric element 30 and a hook 6.
  • the hook 6 may be an extension hook of the piezoelectric element 30 or an elastic material as a hook 6.
  • the energized end of the piezoelectric element 30 is fixed on the upper frame 8, the hook 6 is firmly bonded to the piezoelectric element 30, the hook 6 is vertically downward, the upper end of the vertical pin 9 is provided with a hook 11, and the lower end of the vertical pin 9 is passed through the bracket
  • the pin holes 14 and the hooks 11 of the board 10 are supported on the tray 10.
  • the hooks of the hooks 11 and the hooks of the hooks 6 engage in a vertical line, and their functions are as follows: When no voltage is applied to the piezoelectric element 30, the hooks 6 hook the hooks 11 when the hooks 11 are slightly lowered. When a voltage is applied to the piezoelectric element 30, the piezoelectric element 30 generates a bending displacement, and the hook 6 cannot reach the hook 11 when the hook 11 is lowered. The supporting plate 10 rises from the lowest position to the highest position, the piezoelectric element 30 is not applied with voltage, and the hook 11 of the vertical pin 9 squeezes the hook 6 into the upper side of the hook 6 and the hook 6 returns to its original state.
  • the hook 6 hooks the hook 11 and the vertical needle 9 stays in a high position.
  • the pallet 10 is lowered to the lowest position.
  • the pallet 30 rises from a low position to a high position and then descends.
  • the piezoelectric element 30 applies a voltage, and the piezoelectric element 30 generates a bending displacement.
  • the hook 6 cannot reach the hook 11, and the vertical pin 9 is lowered to the lowest position along with the pallet 10.
  • the elevating control device operated by the piezoelectric element 30 completes the elevating function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

L'invention porte sur un mécanisme de commande de la levée d'une lisse pour un système Jacquard comprenant un noyau, une armature, une bobine, un ressort, un châssis supérieur et une tige, caractérisé en ce que l'intérieur d'un crochet présente une langue qui est projetée vers le haut de manière inclinée, une patte de levage et une tige sont fixées sur l'extrémité supérieure d'une aiguille, une saillie est fixée sur le côté de la tige, le cadre supérieur est relié à un ressort d'extension relié à une planchette ou un élément piézo-électrique est monté sur le cadre supérieur, alors que la patte de levage est reliée à l'élément piézo-électrique. Le mécanisme de cette invention est simple à fabriquer, de petite taille, consomme moins d'énergie et est spécialement indiqué pour fonctionner de manière exacte et fiable à une vitesse élevée.
PCT/CN2002/000228 2001-04-02 2002-04-02 Mecanisme de commande de la levee d'une lisse pour un metier jacquard WO2002079552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01239618.4 2001-04-02
CN01239618U CN2476569Y (zh) 2001-04-02 2001-04-02 提花机的提综控制装置

Publications (1)

Publication Number Publication Date
WO2002079552A1 true WO2002079552A1 (fr) 2002-10-10

Family

ID=4707909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000228 WO2002079552A1 (fr) 2001-04-02 2002-04-02 Mecanisme de commande de la levee d'une lisse pour un metier jacquard

Country Status (2)

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CN (1) CN2476569Y (fr)
WO (1) WO2002079552A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702286A (en) * 1985-09-06 1987-10-27 Etablissments Staubli-Verdol Shed forming devices in weaving looms including pivotable retaining hooks
CN1074254A (zh) * 1991-11-28 1993-07-14 Wac资料服务有限公司 用于织机的经纱控制设备
US5392820A (en) * 1993-03-29 1995-02-28 Oskar Schleicher Piezoelectrically controlled lift blade and hooking for a shed-forming device for a loom
US5782272A (en) * 1995-10-27 1998-07-21 N.V. Michel Van De Wiele Piezoelectric shed selecting device
US5839481A (en) * 1996-08-06 1998-11-24 Staubli Lyon Procedure and a selector device of the movable hooks of a shed-forming mechanism and a jacquard type loom force balancing of hooks in a jacquard loom
CN1215103A (zh) * 1997-09-01 1999-04-28 史陶比尔－里昂公司 选纱装置,双梭口织造系统和配备此织造系统的织机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702286A (en) * 1985-09-06 1987-10-27 Etablissments Staubli-Verdol Shed forming devices in weaving looms including pivotable retaining hooks
CN1074254A (zh) * 1991-11-28 1993-07-14 Wac资料服务有限公司 用于织机的经纱控制设备
US5392820A (en) * 1993-03-29 1995-02-28 Oskar Schleicher Piezoelectrically controlled lift blade and hooking for a shed-forming device for a loom
US5782272A (en) * 1995-10-27 1998-07-21 N.V. Michel Van De Wiele Piezoelectric shed selecting device
US5839481A (en) * 1996-08-06 1998-11-24 Staubli Lyon Procedure and a selector device of the movable hooks of a shed-forming mechanism and a jacquard type loom force balancing of hooks in a jacquard loom
CN1215103A (zh) * 1997-09-01 1999-04-28 史陶比尔－里昂公司 选纱装置,双梭口织造系统和配备此织造系统的织机

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Publication number Publication date
CN2476569Y (zh) 2002-02-13

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