CN1776049A

CN1776049A - Electronic jacquard yarn selecting unit

Info

Publication number: CN1776049A
Application number: CN 200510061686
Authority: CN
Inventors: 张森林; 樊臻; 吴群民
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2006-05-24

Abstract

A composite electronic jacquard interceptor includes pin axle, swing arm, spring, guiding block, electromagnet, saw shape slot with convex, hanging hook, and casing. Comparing with current technology, said invention has advantages of 1, simple structure with small arm swing range and high work frequency, 2, no electrostatic interference due to adopting plastic hook, 3, small magnetic gap, 4, energy saving due to the more windings turns and low voltage.

Description

A kind of electronic jacquard yarn-selecting unit

Technical field

The present invention relates to a kind of double-lift electronic jacquard machine, particularly a kind of electronic jacquard yarn-selecting unit.

Background technology

Traditional electronic jacquard yarn-selecting unit, as a kind of vertical screw mandrel detent mechanism that is used for loom that CN89107890.8 provides, each detent mechanism contains a holder part, a pair of solenoid, a pair of pole piece.The both sides on support top extreme direction on it is tapered, the both sides of support bottom are tapered towards its bottom, a turning point is arranged between bottom and the top, the edge of both sides, support top is provided with groove, support top has two openings that are used to arrange solenoid, the edge of a pair of pole piece is installed in respectively on the above-mentioned groove, by rivet solenoid is fixed on the pole piece, this rivet guarantees to have good magnetic contact between solenoid and the pole piece, and the thickness of the limit wall of the degree of depth of groove and pole piece should be selected like this, when pole piece is rack-mount, the central elevation part of support side should be stretched out the outer surface of limit wall, link up with on the appropriate location of the lateral parts that is positioned at protuberance, and form with support, a pair of pole piece is when solenoid is activated, and one of them pole piece forms the N utmost point, and another pole piece forms the S utmost point.At the heald bar that support both sides work pumps, when coil was activated, heald bar successively stopped to hang on the hook, and corresponding warp thread is raised the formation shed open.At this moment, the part that heald bar surpasses turning point is in case of bending, because support both sides central elevation is partly stretched out the outer surface of magnetic pole strength, when heald bar stops hanging on the hook, between heald bar and pole piece, can form a space, have several heald bar detent mechanisms to be fitted together, the used detent mechanism quantity of loom can be handled the maximum quantity of warp thread corresponding to this loom, and described heald bar also is called the sheet hook.The defective that this scheme exists is: 1) heald bar is to rely on electromagnetic attracting force and stop hanging on the hook, and heald bar does not contact with pole piece, has magnetic gap between the two, and the electric current that causes activating solenoid is bigger, the coil temperature rise height; 2) behind the coil blackout, coil and pole piece have remanent magnetism to exist, and can influence the further raising of weaving speed; 3) the frequent crooked of heald bar can influence its service life.

Summary of the invention

The purpose of this invention is to provide a kind of simple and compact for structure, electronic jacquard yarn-selecting unit that energy consumption is low, reliable, jacquard weave is controlled in swing by the control swing arm, the move up and down static of generation and the adverse effect of remanent magnetism of knitting needle have been avoided, can improve the weaving efficiency of jacquard significantly, reliable in action.

A kind of electronic jacquard yarn-selecting unit, comprise housing 1, electromagnet 2, hook 3, drag hook 4, the bottom of drag hook (4) is connected with chain wheel rope, it is characterized in that: be provided with 2 bearing pins 5,2 swing arms 6 and 2 springs 7, these bearing pins 5, swing arm 6 and spring 7 are arranged in the both sides of electromagnet 2, wherein bearing pin 5 becomes one with housing 1, its back is provided with and another blind hole of selecting the bearing pin of yarn unit to cooperatively interact, and the top of swing arm 6 has an installing hole that matches with bearing pin 5, and the outside of swing arm 6 is provided with one swing arm 6 carried out spacing outer lug boss 1a, the inboard of swing arm 6 also is provided with serriform groove 6a, spring 7 is arranged between serriform groove 6a and the inner convex platform 1b, above-mentioned outer lug boss 1a and inner convex platform 1b and housing 1 bottom that hook 3 is positioned at swing arm 6 that becomes one, and become one with swing arm 6; The hook of hook 3 is towards the outside of housing; The elasticity that is provided with the coupler body of drag hook 4 helps inhales body (4a).

Griffe to drive drag hook 4 and do and pump, move to highest order when griffing to drive drag hook 4, if the coil no power of electromagnet 2, drag hook 4 successively stops hanging over hook 3 o'clock, and warp thread forms shed open; If the coil electricity of electromagnet 2, swing arm 6 are by the armature adhesive of electromagnet 2, hook 4 breaks away from drag hooks 3, if the coil electricity of electromagnet 2, griffes to drive drag hook 4 and does and pump, and warp thread does not form shed open.

With prior art relatively, the present invention has following advantage: 1) rational in infrastructure simple, the swing arm hunting range is very little, has improved the operating frequency of swing arm, and has improved the production efficiency of loom; 2) drag hook is formed by plastic injection-moulded, and drag hook can not produce static up and down, has avoided electrostatic interference; 3) help the suction body because the lower end of drag hook is provided with elasticity, the gap between swing arm and the electromagnet armature is minimum, and the needed electric current of adhesive is just little; 4) this electronic jacquard yarn-selecting unit magnet spool support is vertical layout, and traditional coil brace that selects yarn mechanism is lateral arrangement, and the coil turn that this mechanism arranged is multiplied, and the electromagnetism the suction-combining force of generation increases, and energising voltage reduces, and reduces power consumption.

Description of drawings

Fig. 1 is the structural representation of this electronic jacquard yarn-selecting unit.

Fig. 2 is the structure chart of drag hook.

The specific embodiment

Embodiment 1

A kind of electronic jacquard yarn-selecting unit, structure as shown in Figure 1, outer lug boss 1a, inner convex platform 1b, bearing pin 5 is injection molded into one with housing 1, the thickness of housing 1 is 2mm, the thickness of swing arm 6 is 1.6mm, and the number of turn of coil is 4200 circles, and coil resistance is 645 ohm, electrical current is 25 milliamperes, during installation, selecting the yarn unit with 8 is one group, and every group of thickness along combinations of directions is 44.8mm, select yarn mechanism volume little, be particularly suitable for making large-scale electronic jacquard machine, as the jacquard use of 12288 pins, traditional electronic jacquard machine coil turn is not more than 1400 circles, coil resistance is not more than 150 ohm, and electrical current is 80 milliamperes.

Embodiment 2

A kind of electronic jacquard yarn-selecting unit, structure as shown in Figure 1, outer lug boss 1a, inner convex platform 1b, bearing pin 5 is injection molded into one with housing 1, the thickness of housing 1 is 2mm, the thickness of swing arm 6 is 1.6mm, and the number of turn of coil is 4500 circles, and coil resistance is 675 ohm, electrical current is 25 milliamperes, during installation, selecting the yarn unit with 16 is one group, and every group of thickness along combinations of directions is 89.6mm, select yarn mechanism volume little, be particularly suitable for making large-scale electronic jacquard machine, as the jacquard use of 12288 pins, traditional electronic jacquard machine coil turn is not more than 1400 circles, coil resistance is not more than 150 ohm, and electrical current is 80 milliamperes.

Claims

1. electronic jacquard yarn-selecting unit, comprise housing (1), electromagnet (2), hook (3), drag hook (4), the bottom of drag hook (4) is connected with chain wheel rope, it is characterized in that: be provided with 2 bearing pins (5), 2 swing arms (6) and 2 springs (7), these bearing pins (5), swing arm (6) and spring (7) are arranged in the both sides of electromagnet (2), wherein bearing pin (5) becomes one with housing (1), its back is provided with and another blind hole of selecting the bearing pin of yarn unit to cooperatively interact, the top of swing arm (6) has an installing hole that matches with bearing pin (5), the outside of swing arm (6) is provided with one swing arm (6) is carried out spacing outer lug boss (1a), the inboard of swing arm (6) also is provided with serriform groove (6a), and spring (7) is arranged between serriform groove (6a) and the inner convex platform (1b), and above-mentioned outer lug boss (1a) and inner convex platform (1b) become one with housing (1), hook (3) is positioned at the bottom of swing arm (6), and becomes one with swing arm (6).

2. electronic jacquard yarn-selecting unit according to claim 1 is characterized in that: the hook of hook (3) is towards the outside of housing.

3. according to claim 1 and 2 described electronic jacquard yarn-selecting units, it is characterized in that: the coupler body of drag hook (4) is provided with an elasticity and helps suction body (4a).