CN1202542A - Electronic needle selection mechanism for jacquard machine - Google Patents

Abstract

The roller as one needle selecting mechanism of jacquard consists of box, controller, cross bar, vertical bar, hawk, cross bar spring, repositioning plate and control circuit. The front board of the box has through holes corresponding to the cross needles of various jacquard, and each stepwise distributed hawk corresponds parallelly to one row of holes in front board. The roller features that the repositioning plate is between vertical bar aggregate and front board of box and has through holes for cross bars to pass through. It has reasonable structure, long data transmission period, short electromagnet action time and low power consumption and is especially suitable for use in jacquard with over one thousand needles.

Description

Electronic needle selection mechanism for jacquard

The present invention relates to the selecting mechanism of jacquard, is a kind of electromechanical integrated product.

The inventor's patent ZL91104926.6 " simple jacquard needle board ", this mechanism on unit mechanisms, possess have simple in structure, needle selection accurately, advantages such as long working life, but when constituting big machine spininess, the quite big difficulty of existence in enforcements.Its former because: 1, because restoring board is a fixed placement, and box body moves backward, cross bar percussion restoring board is pushed to travel forward until box body again just finishes original state after one section.Microprocessor to time of electromagnet transmission data after original state forms, contact with the jacquard eedles before during this period of time to front panel, this time accounts for 1/5 of jacquard each service cycle.Data transmission period is short, and the plenty of time is not utilized.For the data of finishing hundreds of pin jacquards in 1/5 service cycle are carried, actuation time, the power of controller has all been strengthened pressure.2, owing to the every front and back that cross bar is worn box body, electromagnet can only be installed away from cross bar.Must could control cross bar by montant, so that on header board, present porose or the atresia state.Montant is different in size, and weight is also different, and the longest montant requires electromagnet pulling force maximum, and for making all electromagnet reliably workings, the electromagnet pulling force is as the criterion to satisfy the longest montant of pulling.The installation dimension of electromagnet is subjected to the restriction of existing jacquard eedles spacing, and the size of electromagnet limits the suction difficulty beyond doubt that increases electromagnet again, can move and also wants much longer times its actuation time.Only be 1/5 of the jacquard reciprocating operation cycle actuation time that adds reason 1 described electromagnet group, finish the transmission of mass data, the group number of packet is few, and every group data bit is very big, the electromagnetic quantities of working simultaneously is very big, and the power of the D.C. regulated power supply that needs is very big.With 992 pin jacquards is example, calculates with 120 rev/mins of running speeds, needs the D.C. regulated power supply of 1kw approximately, if 1480 pins and more speed running, required D.C. regulated power supply, more powerful.This not only be difficult to make and cost very high, cost is the lifeline of product.

The object of the present invention is to provide a kind of improved electronic needle selection mechanism for jacquard, it has rational in infrastructure, the characteristics that power significantly reduces.

Electronic needle selection mechanism for jacquard, it is made up of box body, controller, cross bar, montant, cross bar spring, restoring board and control circuit, the box body front panel has and the corresponding through hole of all types of jacquard eedles, the resetting-mechanism that it is characterized in that driving restoring board is formed by deciding hook, moving hook, roller bearing and spring, deciding hook is fixed on the jacquard body, moving hook and restoring board are hinged, and roller bearing is fixed on the box body, and spring places between front panel and the restoring board.

As above-mentioned electronic needle selection mechanism for jacquard, it is characterized in that restoring board between montant aggregate and box body front panel, has the cross bar via hole on the restoring board, length is successively decreased between each row of cross bar, becomes stepped distribution, and controller becomes ladder to place along cross bar.

As above-mentioned electronic needle selection mechanism for jacquard, it is characterized in that cross bar is symmetrical with middle row, respectively arrange the length symmetry up and down and successively decrease, become symmetry stepped, controller becomes up and down symmetrical ladder placement.

As above-mentioned electronic needle selection mechanism for jacquard, it is characterized in that controller is a solenoid electromagnet, electromagnet has the tubulose iron core that stretches into from two ends to screwed pipe, and moving iron moves in the hole of pipe-shaped core, and tail end has back-moving spring in the hole.

As above-mentioned electronic needle selection mechanism for jacquard, the electronic circuit that it is characterized in that driving governor is a diode matrix formula on-off circuit.

The advantage that the present invention gives prominence to is: 1, owing to adopted resetting-mechanism, restoring board is finished original state when plate and jacquard eedles disengage in front, microprocessor just can divide into groups to finish once more with before the jacquard eedles contacts until front panel to electromagnet transmission data.Account for 2/3 of jacquard service cycle during this period of time.

2, because restoring board places between front panel and the montant aggregate, and controller becomes ladder to place along cross bar, and is all very little with the cross bar spacing, even the moving iron of available electromagnet directly controls cross bar, the required pulling force minimum of electromagnet, and electromagnet is made easy, and actuation time is fast.

3, both integrate, and data transmission period is long, and electromagnet is short actuation time, and the packet count of finishing data is many, and every group of data bit is little, and the electromagnet amount of working simultaneously is few, and the power of D.C. regulated power supply is little.Still be example with 992 pin jacquards, running speed is 120 rev/mins, and the transmission data time is 333 milliseconds, adds that the electromagnet run duration is short, and required D.C. regulated power supply power only is more than 100 watt.Adapt to the jacquard that the pin number is many and run up.

Below in conjunction with description of drawings one embodiment of the present of invention.

Fig. 1, embodiment of the invention contour structures schematic diagram.Wherein, 1 box body, 2 mandrels, 3 front panels.

Fig. 2 is the A-A cutaway view of Fig. 1.Wherein, 4 location supporting plates, 5 restoring boards, 6 cross bars, 7 cross bar springs, 8 electromagnet, 9 montants (moving iron).

Fig. 3 is a resetting-mechanism schematic diagram among Fig. 1.Wherein, 10 decide hook, 11 moving hooks, 12 roller bearings, 13 springs.

Fig. 4 is unit mechanisms atresia view among Fig. 2.

Fig. 5 is porose view of unit mechanisms among Fig. 2.

Fig. 6, common solenoid electromagnet schematic diagram.

Fig. 7, the solenoid electromagnet structure chart of the present invention's design.Wherein, stretch the hole electromagnet in 81.

Fig. 8, diode matrix on-off circuit schematic diagram of the present invention.

As shown in Figure 1, box body 1 is a cuboid, and mandrel 2 is equipped with in its both sides, and box body 1 is fixed on the cylinder batten of jacquard by mandrel 2.The front panel 3 of box body 1 has according to the corresponding through hole of all kinds of model jacquard eedles.

As shown in Figure 2, cross bar 6 is placed in box body 1, is laterally zygomorphic stepped, a horizontal hole of each piece supporting plate 4 corresponding front panel 3.Restoring board 5 places between front panel 3 and the montant aggregate, and restoring board 5 has and front panel 3 through hole one to one, under the resetting-mechanism control can before and after parallel motion.A cross bar 6 is pierced in front panel 3 each hole, and the spring 7 of packing in the plate 3 back cross bars 6 in front, and the other end of cross bar 6 passes restoring board 5 holes corresponding with front panel plate 3, rests the top of corresponding mounting plate 4 or the below of bottom plate 4.Both can be with cross bar 6 location arbitrarily among front panel 3, restoring board 5 and supporting plate 4 threes.Cross bar 6 can be promoted to supporting plate 4 directions by restoring board 5 to promotion of front panel 3 directions or spring 7 by compression.Electromagnet 8 is fixed on the top of mounting plate 4 or the below of bottom plate 4, and the gap that can hold cross bar 6 motions is arranged between the supporting plate 4, the montant of each electromagnet 8 (moving iron) 9 corresponding cross bars 6.

As shown in Figure 3, resetting-mechanism is by deciding hook 10, moving hook 11, roller bearing 12 and spring 13 compositions.Decide hook 10 and be fixed on the jacquard body, moving hook 11 is connected with restoring board 5 and can axis swing.Roller bearing 12 is fixed on the box body 1, and spring 13 is contained between front panel 3 and the restoring board 5.Box body 1 is reciprocating with the jacquard cylinder rocker, when box body 1 is pressed to the jacquard pin tin fully, moving hook 11 with decide hook 10 and collude, when box body 1 moves from the jacquard direction, moving hook 11 drive restoring boards 5 to front panel 3 directions parallel move and promote cross bar 6 advance to front panel 3, when the montant (moving iron) 9 that reaches electromagnet 8 when move distance can fall into the rearward end of cross bar 6, the rear end that roller bearing 12 is depressed moving hook 11 makes hook 11 and decides hook 10 and take off and collude, this moment, spring 13 made restoring board 5 from front panel 3 directions, and box body 1 continues motion backward.Jacquard cylinder is put resetting-mechanism of every reciprocating motion and is finished a motion control to restoring board 5.

Jacquard is controlled the liter of organizine or fallen is to rely on the porose or atresia on cylindrical fireworks and the card thereof that corresponding eedles is not promoted or promote to finish.Electronic needle selection mechanism for jacquard utilizes exactly that the microprocessor data capacity is big, transfer of data is fast, data modification plurality of advantages easily, drive or do not drive the electromagnet of each unit mechanisms by the electric drive circuit, plate 3 forms porose or atresia state in front, finishes traditional cylindrical fireworks and card function.

As shown in Figure 4, when restoring board 5 promotes cross bar 6 and compresses spring 7 during to front panel 3 motion, when cross bar 6 heads and front panel 3 are concordant, cross bar 6 is blocked in montant (moving iron) 9 rear ends that fall into cross bar 6, though restoring board 5 moves backward, cross bar 6 is motionless, and this hole of front panel 3 just is plugged like this.Restoring board 5 all is set to this state with all unit mechanisms, is referred to as original state.After this microprocessor card data that this cycle is required are transferred to each electromagnet 8 by the electric drive circuit, the atresia state of corresponding card, electromagnet 8 not conductings, moving iron 9 is failure to actuate, original state is retained and just forms the atresia state, the porose state of corresponding card, as shown in Figure 5, electromagnet 8 conductings of this unit, moving iron 9 inwardly shrinks the rearward end that breaks away from cross bar 6 and no longer blocks cross bar 6, the spring 7 that cross bar 6 has been compressed promotes to the direction of supporting plate 4, and front panel 3 these cell positions form hole, are referred to as porose state.In the one-period of jacquard running by all unit mechanisms of needs of flower type respectively in front plate 3 form porose or atresia state, just replace jacquard should service cycle a required card.Constantly repeat said process and just constitute electronic needle selection mechanism for jacquard.

Electronic needle selection mechanism for jacquard is an electromechanical integrated product, the critical component that the realization signal of telecommunication converts mechanical action to is an electromagnet 8, electromagnet will satisfy that volume is little, suction is big, mutually magnetic disturbance little optimum be to select solenoid electromagnet for use, common as shown in Figure 6 solenoid electromagnet all has the garden cylindricality iron core that stretches into the screwed pipe centre, the moving every adhesive of iron is once all clashed into once with the end face of garden cylindricality iron core, and actual life is not long.The present invention's design electromagnet 8 as shown in Figure 7, it in the screwed pipe is the tubular iron core in garden of band through hole that it and common solenoid electromagnet difference are to stretch into, and put in to the centre from two ends, have only less magnetic gap therebetween, moving iron 9 is movable in through hole, during coil electricity, move in the iron 9 to contraction, spring plays buffering and reset response, does not produce any bump, is applicable to that therefore electronic needle selection mechanism for jacquard of the present invention uses.

Electronic needle selection mechanism for jacquard removes above-mentioned executing agency, still need microprocessor and electric drive circuit, microprocessor needn't tire out to be stated, the electric drive circuit also originally is very common, but electronic needle selection mechanism for jacquard has thousands of electromagnet, each electromagnet drives as if the driver circuit by a correspondence, and this driver circuit is huge complicated again, and many lines make electronic needle selection mechanism for jacquard be difficult to make and maintenance.The present invention adopts the on-off circuit of diode matrix as shown in Figure 8, and electronic switch Y1～Yn has only a conducting in each moment, and electronic switch X1～X5 then need control some conducting according to data.For example when the Y1 conducting, an X1～X4 conducting, then L1～L4 conducting, L5～Ls is obstructed.Open Y1～Yn successively, the opening of each Y cooperate X1～Xs some is open-minded, just can arrive each electromagnet to the required transfer of data of this cycle card.If again the adjacent electromagnet of dotted portion, the line of electronic switch and dotted portion is few, is convenient to make and maintenance.

Electronic needle selection mechanism for jacquard of the present invention can be used for the transformation of all types of jacquards of use at present, also can be used for the design of novel electron jacquard, economic benefit that it will produce and social benefit.

Claims (5)

1, a kind of electronic needle selection mechanism for jacquard, it is made up of box body, controller, cross bar, montant, cross bar spring, restoring board and control circuit, the box body front panel has and the corresponding through hole of all types of jacquard eedles, the resetting-mechanism that it is characterized in that driving restoring board is formed by deciding hook, moving hook, roller bearing and spring, deciding hook is fixed on the jacquard body, moving hook and restoring board are hinged, and roller bearing is fixed on the box body, and spring places between front panel and the restoring board.

2, electronic needle selection mechanism for jacquard as claimed in claim 1 is characterized in that restoring board between montant aggregate and box body front panel, has the cross bar via hole on the restoring board, and length is successively decreased between each row of cross bar, becomes stepped distribution, and controller becomes ladder to place along cross bar.

3, electronic needle selection mechanism for jacquard as claimed in claim 2 is characterized in that cross bar is symmetrical with middle row, respectively arranges the length symmetry up and down and successively decreases, and becomes symmetry stepped, and controller becomes up and down symmetrical ladder placement.

4, electronic needle selection mechanism for jacquard as claimed in claim 3 is characterized in that controller is a solenoid electromagnet, and electromagnet has the tubulose iron core that stretches into from two ends to screwed pipe, and moving iron moves in the hole of pipe-shaped core, and tail end has back-moving spring in the hole.

5, electronic needle selection mechanism for jacquard as claimed in claim 4, the electronic circuit that it is characterized in that driving governor are diode matrix formula on-off circuit.

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