CN2243475Y

CN2243475Y - High speed electromagnetic needle selector for electronic jacquared machine

Info

Publication number: CN2243475Y
Application number: CN 95203911
Authority: CN
Inventors: 唐丰民; 楚建安
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-03
Filing date: 1995-03-03
Publication date: 1996-12-25
Anticipated expiration: 2005-03-03

Abstract

The utility model relates to a high speed electromagnetic needle selector for an electronic jacquard machine, which mainly solves the defects of difficult technological manufacture, high cost, slow movement speed, non adaptability of use on high speed jacquard machines, easy generation of heat of the system, etc. in the prior art. The utility model comprises a valve body, an electromagnet composed of an electromagnet core and a coil, and a vertical needle. The vertical needle is provided with two permanent magnets with opposite polarities. The electromagnet can generate the same magnetic polarity with the contiguous polarity of the two permanent magnets when the current in the coil is switched on. The utility model can be applied to various single acting and double acting electronic jacquard machines.

Description

Electronic jacquard machine high speed electromagnetic needle selecting device

The utility model relate to a kind of on jacquard employed device, a kind of electronic jacquard machine high speed electromagnetic needle selecting device of more specifically saying so.

The general character of electromagnetic needle selector is the effect by electromagnet in the electronic jacquard machine, make the perpendicular pin of upper and lower motion produce or not produce the position skew, thereby cause perpendicular needle set that different movement locus is arranged, in order to make perpendicular needle movement reliable, the necessary position of the perpendicular pin of skew and non-migration is clear, that is to say that should there be certain distance two positions, usually all between 2～4mm.In the prior art, this needle selecting device generally is to be made of the electromagnetic valve of a fixed position and perpendicular pin, and electromagnetic valve is made up of valve body and electromagnet, and perpendicular pin is made by playing magnetic alloy, if electromagnet energising, then perpendicular pin is by electromagnetic actuation and be articulated on the valve body during work; If electromagnet no power, then perpendicular pin breaks away from valve body by its elastic force, return to the equilbrium position, the brown bar navigation system of Chinese patent 90209331.2-jacquard weaving machine electromagnetic needle selection mechanism, 90101402.8-electronic jacquard machine and present domestic employed similar imported product all belong to this class formation.The shortcoming of these prior aries is: first, for making electromagnet reliable to the adhesive of perpendicular pin, just must increase the suction-combining force, the approach that increases has two, the one, the power of increase electromagnet, promptly increase electric current, make perpendicular pin adopt high permeability material simultaneously, the 2nd, reduce the bounce of erecting after pin is offset, on the other hand, for making perpendicular pin at the reliable disengaging in electromagnet outage back electromagnet, then must reduce the remanent magnetism on electromagnet core and the perpendicular pin, and increase the resiliency that erects pin simultaneously, but be a kind of contradiction between the requirement of this adhesive and disengaging, because increase electric current remanent magnetism is increased, the general quality of the material of high magnetic conduction is soft, hardness is low, elasticity is relatively poor, on the contrary, the then general magnetic conduction of material is poor preferably for elasticity, remanent magnetism is serious, so the general synthesis of taking into account elasticity and magnetic conductivity that adopts, it is so-called bullet magnetic alloy, this just makes that to electromagnetic core, the material of especially perpendicular pin requires very strict, thereby the manufacture difficulty of whole electromagnetic needle selector and production cost are improved; Second, after the electromagnet outage, perpendicular pin is to lean on the spring return of himself to break away to the equilbrium position and with electromagnet, and its elasticity of perpendicular pin of employing bullet magnetic alloy generally can be very not high, and have certain remanent magnetism, this just makes perpendicular pin can not return to the equilbrium position very soon, and therefore this structure only is suitable for using in the jacquard of general speed, if when in high-speed jacquard, using, can not fast return produce misoperation because of perpendicular pin sometimes to the equilbrium position; The 3rd, in order to make the electromagnet perpendicular pin of adhesive effectively, the power of its electromagnet is bigger, thereby system's heating also is a problem.

The purpose of this utility model is to overcome above-mentioned shortcoming of the prior art and a kind of electronic jacquard machine high speed electromagnetic needle selecting device is provided, this device all can apply a positive active force in adhesive of erecting pin and detach procedure, thereby make the quick action of perpendicular pin, and the making selection is easy, production cost reduces.

For finishing above-mentioned purpose, technical solution provided by the utility model is: a kind of electronic jacquard machine high speed electromagnetic needle selecting device, comprise that valve body 2, the electromagnet that is made of electromagnetic core 3 and coil 4 reach perpendicular pin 1, its special character is, be provided with two opposite polarity permanent magnets 5 on described perpendicular pin 1, described electromagnet is a polarity of the magnetic field electromagnet identical with the adjacent polarity of described two permanent magnets 5 that produces in coil 4 energising backs.

Hanging structure described in the above-mentioned technical solution between perpendicular pin 1 and the valve body 2 can be to be made of hook 7 that is located at perpendicular pin 1 upper end and the hook groove 6 that is located on the valve body 2, also can be to constitute by being located at dog hole 11 on the perpendicular pin 1 and the hook 10 that is located on the valve body 1, also can be other hanging structure that both effectively can be articulated and break away from.

The accompanying drawing drawing is described as follows:

Fig. 1, Fig. 2 are the structural representations of this utility model;

Fig. 3 is first embodiment of this utility model structural representation in use;

Fig. 4 is a structural representation of perpendicular pin among this first embodiment;

Fig. 5 is that the A of Fig. 4 is to view;

Fig. 6 is second embodiment of this utility model structural representation in use;

Fig. 7 is a structural representation of perpendicular pin 1 among this second embodiment;

Fig. 8 is that the B of Fig. 7 is to view.

Each label declaration is as follows among the figure:

1-erects pin, 2-valve body, 3-electromagnetic core, 4-coil, 5-permanent magnet, 6-hook groove, 7-hook, 8-shelves pin dividing plate, 9-guide pin rail, 10-hook, 11-dog hole.

Know referring to Fig. 1, Fig. 2, the electronic jacquard machine high speed electromagnetic needle selecting device of this utility model has a valve body 2, valve body 2 is provided with an electromagnet that is made of electromagnetic core 3 and coil 4, perpendicular pin 1 is positioned at valve body 2 both sides, be provided with two opposite polarity permanent magnets 5 on perpendicular pin 1, described electromagnet is identical with the adjacent polarity of described two permanent magnets 5 at the polarity of the magnetic field that its coil 4 energising backs produce.When coil 4 no powers, electromagnetic core 3 constitutes magnetic loop with two permanent magnets 5 of homonymy, produces the suction-combining force like this, and permanent magnet drives perpendicular pin 1 and produces the position skew to valve body 2, as shown in Figure 1; When coil electricity, on the magnetic pole of electromagnetic core 3, produce the electromagnetic field identical with adjacent permanent magnet, concurrent magnetisation repulsion, this power is repelled permanent magnet 5 and perpendicular pin to the one side away from valve body, make perpendicular pin 1 skew, as shown in Figure 2.It is opposite that the polarity of two permanent magnets 5 also can be defined as direction to that indicated in the drawings, at this moment can reach same effect by the sense of current or the winding direction that changes coil.

Referring to Fig. 3, Fig. 4, Fig. 5 knows, this device is a plurality of uses simultaneously on jacquard, a retaining pin dividing plate 8 is housed between two neighboring devices during installation, an electromagnet that is made of " worker " font electromagnetic core 3 and coil 4 respectively is housed in each valve body 2, perpendicular pin 1 is positioned at the both sides of valve body 2, perpendicular pin 1 top is provided with two grooves, a permanent magnet 5 is housed respectively in it, the upper end of each perpendicular pin 1 respectively is provided with a hook 7, relevant position in each both sides, valve body 2 top respectively is provided with a hook groove 6, hook 7 forms the hanging structure of this device with hook groove 6, also be provided with guide pin rail 9 in valve body 2 both sides, qualification by shelves pin dividing plates 8 between the two adjacent devices can make in perpendicular two guide pin rails 9 of pin 1 on valve body 2 and move up and down, and is had an effect by electromagnet and two perpendicular pins.

Three groups of devices among Fig. 3 are expressed the various situations of perpendicular pin 1 action respectively.A left side first device is to show when perpendicular pin 1 moves to the needle selection district among the figure, and electromagnet energising, electromagnet produces repulsive force with the permanent magnet 5 that is adjacent, and it is pushed open together with perpendicular pin 1, the hook 7 of perpendicular pin upper end is thrown off with the hook groove 6 on the valve body, when perpendicular pin descends, just can not hang on the valve body.Second device explanation: when perpendicular pin 1 rises to the needle selection district, the electromagnet no power, permanent magnet adhesive " worker " font electromagnetic core 3 on the perpendicular pin 1, perpendicular pin 1 just is displaced on the valve body 2, when perpendicular pin 1 descends, can not continue to descend in its hook 7 hook grooves 6 that will be articulated on the valve body, the perpendicular pin in its right side is exactly the example that is articulated in the hook groove 6, and the existence of the perpendicular pin in its right side does not influence the course of action of the perpendicular pin in left side.The 3rd device explanation: when needle movement is erected on the right side to the needle selection district, the electromagnet energising, perpendicular pin is open, its result with first the device in perpendicular pin identical, different is, the hook groove of valve body 2 left ends has tangled the perpendicular pin in left side, the electromagnetic field that the electromagnet energising is produced also produces repulsive force to the perpendicular pin in left side, but link up with 7 with hook groove 6 have certain power that holds in design, have under the situation of certain pulling force in perpendicular pin bottom, the row that this power of holding can overcome perpendicular pin and electromagnet holds the bounce of power and self-deformation generation and hangs over reliably in the hook groove 6, when if this perpendicular pin need break away from the hook groove, then when its elevating mechanism was raised to it position shown in perpendicular pin in right side, he just can break away from the hook groove.

Fig. 6, Fig. 7, needle selecting device shown in Figure 8 and Fig. 3, Fig. 4, structure shown in Figure 5 are basic identical, but different is that the hook that will erect the pin upper end changes dog hole 11 into, accordingly the hook groove on the valve body is changed into hook 10, the course of work when it uses can be joined by the explanation to Fig. 3, Fig. 4, Fig. 5.

The utility model all can use in single-lift jacquard and double lift jacquard.

In conjunction with the foregoing description as can be seen, the utility model has following advantage compared to existing technology:

1, the utility model is provided with two opposite polarity permanent magnets on perpendicular pin, the magnetic loop that constitutes by these two permanent magnets and electromagnetic core can make perpendicular pin and the effective adhesive of valve body and be articulated on the valve body, after the electromagnet energising, the magnetic pole identical with adjacent permanent magnet that electromagnet produced can effectively be pushed open erecting pin, avoided relying on perpendicular pin bounce to recover the unreliability of position because of simple, thereby this needle selecting device not only can also can be suitable for using in high-speed jacquard in the jacquard of low velocity;

2, because the utility model is to rely on the mutual adhesive between permanent magnet and the electromagnet or repel to reach the purpose that makes perpendicular pin articulate or break away from valve body, thereby the magnetic conductivity of the remanent magnetism problem of electromagnetic core, perpendicular pin, remanent magnetism problem etc. there not be the very requirement of strictness, make making, selection easy, production cost reduces;

3, because the utility model does not rely on electromagnet to come adhesive to erect pin, thereby do not require that electromagnet has bigger power, both avoided the problem of system's heating, can reduce the volume of power supply again, further reduced production cost yet.

Claims

1, a kind of electronic jacquard machine high speed electromagnetic needle selecting device, comprise electromagnet and perpendicular pin (1) that valve body (2), electromagnetic core (3) and coil (4) constitute, it is characterized in that: be provided with two opposite polarity permanent magnets (5) on described perpendicular pin (1), described electromagnet is a polarity of the magnetic field electromagnet identical with the adjacent polarity of described two permanent magnets 5 that produces in coil (4) energising back.

2, electronic jacquard machine high speed electromagnetic needle selecting device according to claim 1, it is characterized in that: described two permanent magnets (5) are arranged in the groove on perpendicular pin (1) top.

3, electronic jacquard machine high speed electromagnetic needle selecting device according to claim 1 and 2 is characterized in that: the hanging structure between described perpendicular pin (1) and the valve body (2) is to be made of the hook groove (6) that is located at the hook (7) that erects the pin upper end and be located on the valve body.

4, electronic jacquard machine high speed electromagnetic needle selecting device according to claim 1 and 2 is characterized in that: the hanging structure between described perpendicular pin (1) and the valve body (2) is to be made of the hook (10) that is located at the dog hole (11) on the perpendicular pin and be located on the valve body.