CN1346908A

CN1346908A - Coupling for rotating connecting drive shaft of weaving mechanism and loom

Info

Publication number: CN1346908A
Application number: CN01140964.9A
Authority: CN
Inventors: 埃尔米尼奥·德波利
Original assignee: Baruffaldi SpA
Current assignee: Baruffaldi SpA
Priority date: 2000-09-26
Filing date: 2001-09-26
Publication date: 2002-05-01
Anticipated expiration: 2021-09-26
Also published as: EP1191137A3; EP1191137B1; EP1191137A2; CZ20013444A3; ITMI20002089A0; JP2002173853A; JP4261094B2; ATE345412T1; DE60124478T2; ITMI20002089A1; CN1287027C; IT1318931B1; DE60124478D1; CZ297953B6

Abstract

Coupling for rotationally connecting actuating shafts (1001; 2001) of weave machines (1000) and weaving looms (2000), comprising at least one first clutch element (21) integral with the said shaft (1001) of the weave machine (1000) and a second clutch element (10) integral with the shaft (2001) of the weaving loom (2000), said second clutch element (10) comprising a disk (11) movable coaxially, owing to the thrusting action of associated means (13), for engagement with said first clutch element (21), there also being provided fixed means (15;15a) for recalling said disk (11) in the axial direction in order to cause disengagement thereof from the first clutch element (21) integral with the shaft of the weave machine (1000), said disk (11) having first means (11b) and second means (lid) for engagement with corresponding means (21b) of the first clutch element (21) and with means (15d) of said second clutch element (15), respectively.

Description

The shaft coupling that the rotating connecting drive shaft of weave mechanism and loom is used

The present invention relates to the used shaft coupling of rotating connecting drive shaft of weave mechanism and loom.Known in the engineering department relevant with the production of loom, this loom must dispose some members and be used to transmit the yarn that forms weft yarn, also must dispose some members and be used to transmit the yarn that forms warp thread.

The above-mentioned member that is used to transmit weft yarn can be dissimilar, comprises those so-called clamper types.

The above-mentioned member that is used for the moving warp yarn is renamed as weave mechanism, and can be jacquard type or dobbies type; These machines, especially under the situation of Rapier looms, must with the member synchronous operation that is used to transmit weft yarn so that form desirable textile design.

Known again in fabrication processes, the situation of weft yarn fracture may take place, in such cases, in order to prevent on the fabric that is made into, defect to occur, just require to stop fabrication processes, and make the weft yarn transmission member keep static, converse with the rotation direction of weave mechanism, thereby unclamp formed fabric that time that pauses at loom, so that the continuity of the weft yarn that recovery is interrupted.

Under the situation of Rapier looms, dobbies and loom are separated, and make dobbies carry out reverse moving by means of making an auxiliary driven at low speed member enter the position that meets the requirements.

In order to begin fabrication processes once more, just must recover being connected between loom and the dobbies, once more above-mentioned these machines are placed on the same relative angle position, it is locational that they are in this kind exactly in that time of separating, thereby, guarantee to occur in the same synchronous operation between moving of correspondence when interrupting.

For this purpose, with No. 0877111 patent of the disclosed for example EP of same possessory name, the used shaft coupling of rotating connecting drive shaft of a kind of weave mechanism and loom is disclosed, it comprises the clutch part that at least one combines with the above-mentioned axle of weave mechanism, and the clutch part that combines with the axle of loom, this clutch part branch comprise one can coaxial mobile disk, because the cause of the impetus of relevant apparatus, for this disk is matched with a clutch part that combines of weave mechanism with that, it just combines with a resilient ring that tightens coaxially on the axle of loom, also disposed device, be used to make this disk to regain in the axial direction, so that it is separated with a clutch part that combines of weave mechanism with that.

Owing to adopted state-of-the art drive motors, might settle main drive motor to such an extent that directly be connected with the axle of dobbies, thereby, no matter at normal operation period still in order to make the slow running/contrary operation run duration of shed open location, the axle of dobbies all can be directly by this motor-driven.

Though just can in fact cancel the stand-by motor and the previous braking/clutch part between driving shaft and loom of slow running with this kind structure, but the loom assembly still the neither one parts, can guarantee that loom during breaking away from order to make shed open location, is deadlocked really.

This means, loom, thereby also have clamper, may and unscheduled and be not with driving shaft synchronous and on any position, stop, this may cause serious problems, makes the position of clamper still also within warp thread.

Therefore, formed technical problem, a shaft coupling that is used for loom will be provided exactly, when it stops at motor, guarantee to make the driven shaft safety of loom and corresponding reliably being parked on the predetermined position, angle, and guarantee that this position is keeping really during the whole steps of shed open location, up to the accurate synchronization restoring running of driven shaft till.

In the scope of this problem, also require shaft coupling to form by a spot of some parts, these parts can easily be assembled, this shaft coupling is in light weight, cost is low and maintenance requirement is few thereby make.

These problems, be according to the present invention, solve with the used shaft coupling of the rotating connecting drive shaft of weave mechanism and loom, this shaft coupling comprises first clutch part that at least one combines with the above-mentioned axle of weave mechanism, and second clutch part that combines with the axle of loom, this second clutch part comprise one can coaxial mobile disk, because the cause of the impetus of relevant apparatus, for this disk is matched with first clutch part that combines of weave mechanism with that, also disposed stationary device, be used to make this disk to regain in the axial direction, so that it is separated with first clutch part that combines of weave mechanism with that, this disk has first device and second device, is used for matching with the corresponding intrument of first clutch part and the device of above-mentioned second clutch part respectively.

From hereinafter with reference to some accompanying drawings with the illustrated embodiments of the invention of non-limiting mode of giving an example, can obtain more details, in these accompanying drawings:

Fig. 1 shows along the cutaway view of the fore-and-aft plane intercepting of shaft coupling according to the invention, and the those shown is in the situation that matches with the weave mechanism of the loom of normal operation;

Fig. 2 shows shaft coupling shown in Figure 1, and it is in the situation that the driving shaft of beginning and the weave mechanism of slow running is separated; And

Fig. 3 shows shaft coupling shown in Figure 1, and it is in a situation that is separated of complete and weave mechanism.

Such shown in (Fig. 1), shaft coupling according to the invention, be assembled on the loom that has Rapier looms part 2000 of simple demonstration, and be assemblied on the weave mechanism part 1000 (for easy cause, hereinafter be referred to as " dobbies "), these two parts are connecting driven shaft 2001 and the driving shaft 1001 of separate unit drive motors M respectively, and they must suitably rotate and the be connected together (see figure 1) or the (see figure 3) that is separated according to operation requirement hereinafter described.

Being connected between two

axles

1001 and 2001, realize by means of shaft coupling 20 according to the invention, this shaft coupling is positioned between these two axles, and comprise with weave mechanism 1000 the axle 1001 gears that combine 21, and with loom 2000 the axle 2001 electromagnetic drive components that combine.

Gear 21 has first group of nipper 21b, and they can be meshed with corresponding that group nipper 11b of the disk 11 of clutch part 10, and that clutch part combines with axle 2001.

In more detail, above-mentioned disk 11 is connecting resilient ring 12 with being combined as a whole, and this ring is tightened on axle 2001 by bolt 12a or similar articles again; In this way, this ring is resilient along axial direction, but there is not elasticity on the circumferencial direction radially reaching, because the cause of the impetus of spring 13, this ring just can transmit because the moment of torsion that spools 2001 rotation produces to disk 11, and allow disk itself along the axial direction displacement simultaneously, this spring is installed among the relevant seat 14a that is bonded to the spring load spare 14 on the axle 2001.

Above-mentioned clutch part 10 comprises that also is used to the actuator that disk 11 is regained in the axial direction, this actuator is made up of a fixing ring-type electromagnetic assembly 15 in example shown in Figure 1, this assembly combines with the support unit 15a that fixes, and its magnetic field is owing to clutch disc 11 is attracted to have an effect towards axle 2001.

If can be understood like that, the attraction of implementing by electromagnetic assembly, and the impetus that is placed in the spring 13 between axle 2001 and the disk 11 is reverse; In this way, when electromagnetic assembly 15 is activated, be under the situation of disengaging, it just makes the nipper 21b and the 11b of gear 21 and disk 11 respectively, allows

axle

1001 and 2001 distinguish independent rotation.

Disk 11 has also disposed second group of nipper 11d, and this group nipper is opposite with first group, and can be meshed with corresponding that group nipper 15d of electromagnetic drive component 15.Disk 11 has also assembled jut 11c, these juts are placed on the symmetric position, and can be when corresponding nipper 11b is meshed with 21b, the corresponding hole 21c that inserts gear 21 wherein with them matches, and has therefore just guaranteed axle 1001 and axle 2001 accurate relative joint angle positions.

Advantageously, the position of the hole 21c of above-mentioned jut 11c and correspondence, be symmetrical, thereby, just make gear 21 and disk 11 corresponding cooperation on specific position, angle along with jut 11c patchhole 21c, simultaneously, on any other position, jut rests on the surface of disk, thereby makes disk perpendicular with the axis of

axle

1001 and 2001 constantly.

Advantageously, above-mentioned angle symmetry also can be used for the nipper 11b and the 21b of drive part and be used for the nipper 11d of secondary part and the suitable configuration of 15d and obtaining by means of those two groups.

Can understand from above-mentioned explanation, electromagnetic clutch parts 10 axle 1001 of motor M and dobbies 1000 and the axle 2001 of loom are rotationally connected, and when it was activated, it must make an axle and another root axle break away from and be rotationally connected under nonactivated situation; In this way, when not having power, loom and keeping synchronous the connection also between the dobbies.

The operating principle of shaft coupling according to the invention is as follows:

-during the normal running situation of weaving, be in the electromagnetic assembly 15 of unactivated state, and the auxiliary spring 13 that promotes disk 11,

nipper

11d and 15d are separated, and relevant nipper 11b is meshed with the corresponding nipper 21b of gear 21; Thereby

axle

1001 and 2001 just links together rotationally, therefore guarantees the simultaneously operating of weave mechanism and dobbies;

-in weft yarn fracture that time, motor M is stopped, and the axle 2001 of loom breaks away from owing to electromagnetic assembly 15 is activated, and this assembly has overcome the effect of spring 13, makes disk 11 regain and begin and separates with gear 21;

-in this stage (see figure 2), disk 11 is owing to those two groups of nipper 11b of correspondence that also do not break away from fully and the cause of 21b, both stayed held on the edge 21, simultaneously again because the engagement that nipper 11d and fixing tooth 15d have begun and being stayed held on the fixing operating assembly 15;

In this way, driven shaft 2001 just will never break away from uncontrollably fully, and it continues to keep and the accurate synchronization of driving shaft 1001 is moved, and therefore, loom is stopped, and clamper is on the correct position in the weft yarn outside;

In case-separation phase has been finished (see figure 3), the power transmission shaft 1001 of dobbies 2000 just disengages with axle 2001, and because the rotation number drive motors M to slow down just can begin slow running/contrary operation, so that lost shed open is positioned;

-in order to restart normal weaving;

axle

1001 and 2001 must be got back to and shut down position, existing angle in the operational stroke before; for this purpose; electromagnetic assembly 15 capacitation again; thereby (see figure 3) makes spring 13 promote the disk 11 that does not rotate as yet; it is leaned against on the gear 21; cause the jut 11c relevant front surface of slip gear slightly itself; up to these protruding parts in opposite corresponding aperture 21c place and pierce in these holes; make the clutch part closure; and guarantee that axle 1001 strictly is connected on correct relative angle position once again with 2001; simultaneously, because the closure of clutch part moves, motor M is just brought back under the normal rotation situation; therefore allow loom 1000 be connected, prepare to begin once again weaving with dobbies 2000.

Alternately, synchronous operation can reach by means of the angle control system of electronic type, and this kind system for example forms with axle 1001 coaxial encoders by one.

So, with the clutch part that is used for weaving loom according to the invention, obviously be to reach all operations performance that conventional clutch part can reach, but, configuration to simplify can make volume, weight and the whole cost of clutch part all reduce, and guarantees that breaking away from the drive axle at shaft coupling is kept with relative synchronous operation between the driven shaft simultaneously again, and guarantee driven shaft and driving shaft break away from whole during, driven shaft 2001 stops safely.

According to the present invention, some modifications of making for the designing institute of each component part of shaft coupling, be susceptible to, more particularly, be susceptible to nipper 11d and the 15d of disk 11 and the standing part 15a of electromagnetic assembly, can for example pin and hole (not shown) substitute with many simple parts, these substitutions of elements can must be had bigger tolerance compared with tooth by machined, therefore, just can increase the speed of cooperation, and reach and in fact reduce mach cost.

Claims

1. the rotating connecting drive shaft (1001 of weave mechanism (1000) and loom (2000), 2001) used shaft coupling, comprise first clutch part (21) that at least one combines with the above-mentioned axle (1001) of weave mechanism (1000), and second clutch part (10) that combines with the axle (2001) of loom (2000), this second clutch part (10) comprise one can coaxial mobile disk (11), because the cause of the impetus of relevant apparatus (13), for this disk is matched with first clutch part (21) that combines of axle (1001) of weave mechanism with that, also disposed stationary device (15,15a), be used to make this disk (11) to regain in the axial direction, so that it is separated with first clutch part (21) that combines of weave mechanism (1000) with that, it is characterized in that: this disk (11) has first device (11b) and second device (11d), is used for matching with the corresponding intrument (21b) of first clutch part (21) and the device (15d) of above-mentioned second clutch part (15) respectively.

2. shaft coupling according to claim 1 is characterized in that: above-mentioned first clutch part that combines with the axle of weave mechanism, form by gear (21).

3. shaft coupling according to claim 2 is characterized in that: above-mentioned first adapting device (21) of first clutch part, form by the one group of nipper (21b) on the said gear (21).

4. shaft coupling according to claim 3 is characterized in that: above-mentioned first adapting device of the disk of being made up of one group of nipper (11b) (11) can be meshed with corresponding that group nipper (21b) of gear (21).

5. shaft coupling according to claim 1 is characterized in that: above-mentioned second adapting device of disk (11), form by one group of nipper (11d).

6. shaft coupling according to claim 5 is characterized in that: be used to make the above-mentioned corresponding matching device of the fixation kit that disk (11) regains, be made up of one group of fixing nipper (15d).

7. shaft coupling according to claim 1 is characterized in that: above-mentioned second adapting device of disk (11), form by a plurality of pins that are parallel to axial direction and extend outwardly.

8. shaft coupling according to claim 7 is characterized in that: be used to make the above-mentioned adapting device of the fixation kit that disk (11) regains, be made up of a plurality of holes.

9. shaft coupling according to claim 1 is characterized in that: above-mentioned disk (11) combines with the resilient ring (12) that is tightened coaxially on the axle (2001) of loom (2000).

10. shaft coupling according to claim 9 is characterized in that: above-mentioned ring (12) is resilient in the axial direction, and radially with on the circumferencial direction is not having elasticity.

11. shaft coupling according to claim 1 is characterized in that: being used to promote the said apparatus of disk (11), is resilient device (13).

12. shaft coupling according to claim 11 is characterized in that: above-mentioned resilient device is some springs (13), and they are installed in the corresponding bearing (14a) of the spring load spare (14) that combines with the axle (2001) of loom (2000).

13. shaft coupling according to claim 1 is characterized in that: be used to regain the said apparatus of disk (11), form by the coaxial ring-type electromagnetic assembly (15) that is fixed on the loom (2000).

14. shaft coupling according to claim 1, it is characterized in that: first device (11b) and second device (11d) are along the extension of axial direction, this is to be used to make disk (11) to match with the relevant apparatus of first and second clutch part, make that disk keeps matching with these devices, till disk itself fully and in two clutch parts or another disengaging.