CN1125429A

CN1125429A - Bobbin creel

Info

Publication number: CN1125429A
Application number: CN 94192498
Authority: CN
Inventors: 科林·菲利浦·史密夫
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-06
Filing date: 1994-05-05
Publication date: 1996-06-26
Anticipated expiration: 2014-05-05
Also published as: EP0697990A1; CN1040193C; DE69408449T2; WO1994026646A1; AU6682894A; EP0697990B1; DE69408449D1; GB9309305D0

Abstract

Each yarn package holder on the creel has a mechanism for quickly stopping the yarn package holder when the yarn is no longer being drawn. The mechanism comprises an articulated member (8) having a control arm (14) at one end which overlies the yarn and at the other end which is secured to one end of a tensioning line (20) which is wound around a pulley mounted on the yarn package holder. When the yarn is drawn, the brake control arm (14) is raised, which releases the cord (20) from the pulley, so that the braking effect is small. When the yarn is no longer being drawn, the brake control arm (14) drops. This tightens the cord around the pulley and quickly stops the yarn package holder.

Description

Bobbin bank

The invention relates to bobbin bank that rotation yarn package arranged.

Yarn on the bobbin bank can be pulled out from the yarn package under tension force, and the yarn package is just to rotate after overcoming the power that is caused by arrowband or rope and belt wheel and tension force is raise.Tension force requires not high, but when by bobbin bank for the machine of yarn or when axle stops, yarn package meeting continues rotation a period of time and make yarn unwinding and cause yarn to relax and dangle continuously in during this period of time in bobbin bank.This will cause such as problems such as entanglement and the startup of machine is incured loss through delay.

The invention provides a bobbin bank with a lot of rotary yarn package holders, each yarn package holder have a belt wheel and one on the belt wheel at least around on the flexible thin component of a circle, each yarn package holder has a device, this device is reacted to the tension force that reduces when holder is pulled out owing to yarn, to strain around the flexible thin component on the belt wheel, and play brake action.

In this explanation, term " braking " refers to when flexible thin component is tightened up it and acts on power high relatively in the yarn package yarn package holder is stopped.

The mechanism of each yarn package holder preferably comprises an element that pivots, and this element includes a brake control lever, and brake control lever vertically extends with the yarn that yarn package from the yarn holder is pulled out.Yarn and control of braking arm contact, under it, move.Flexible thin component is fixed on the element that pivots.When machine or when axle moves, the yarn of pulling out from the yarn package lifts the control of braking arm and operation below it, and yarn is by as the crow flies or do not have significantly and be not drawn out to skew.Flexible thin component is laxly on belt wheel in this case.When machine or when axle stops, yarn tension is eliminated and the control of braking arm is fallen, thereby whole articulation piece is rotated.This just makes the flexible thin component tension on the belt wheel and yarn package holder is checked, thereby the yarn package is stopped.

What adapt with it is: the element that pivots has a horizontal pivot, control of braking arm and be fixed on the flexible thin component on pivot both sides.

Adapt be that an end of flexible thin component is fixed on the element that pivots and the other end and bobbin bank connecting element fix.

What adapt is to award whole or main tension force from the yarn that the yarn package is pulled out by pivoting element, and this element is to be lifted by yarn, thereby yarn package holder is rotated.Yarn tension pivots element and also can add an adjustable counterweight, and/or link to each other (this will be explained below), so that can be regulated under normal operation with an adjustable spring.

Each yarn package holder can be combined with a frame element.Frame element can have and parallels with yarn package axle core in itself and two poles that striden across by adjustable lateral direction element are arranged.Like this frame element just can determine yarn pull out the borderline region of process; The tram of lateral direction element has prevented that yarn from falling from the end of yarn package.The bar of frame element plays the effect that the yarn of operation is positioned and changes the yarn direction in addition.If want that this will be useful with vertical yarn pulling off device, this PCT patent at us is examined to ask among No. 92/,000 90, the PCT/GB and has been described, at this in conjunction with for referencial use.

The frame element that matches can be a U-shaped element that is in above the yarn package, and its arm plays said bar effect and the arm end is connected with a connecting element.Pivoting element is to be connected with retaining element with pivot.One end of flexible thin component and retaining element or the U-shaped element fixes.Such retaining element can be loaded onto two U-shaped elements suitably and pivot element, on one side one, to be used for yarn package separately.

Preferably with the method for jointly controlling tension force and/or the package of bobbin bank yarn being braked.For this reason, pivot element and be subjected to an action of the spring, spring is connected on the post, and vertically then move on the pillar edge, thereby can carry out the adjustment of spring force to all springs that are connected on the post together.All right cylinders are jointly controlled by an independent horizontal control element.This device our PCT patent above-mentioned examine please in made further instruction.Another kind method is, spring is connected with adjustable substantially horizontal element, and these elements are jointly controlled by an independent vertical control element.

Flexible thin component is decided according to the character of flexible thin component and belt wheel around the number of turns on the belt wheel.Know from experience, when the flexible thin component tension will make the yarn package stop, at least will be around a circle on belt wheel.Flexible thin component preferably at least on belt wheel around 540 °.Flexible thin component can be the polymer strands of braiding, and belt wheel is the belt wheel of plastic mold injection.Another kind method is that flexible thin component is a flat band or an elastomeric metal tape, according to selection, one deck frictional property material can be arranged on its contact surface.Belt wheel also can be a metallo-, for example gets with casting or spinning.

The present invention is existing to be described further with the method for giving an example with reference to appended figure, among these figure:

Fig. 1 is the schematic perspective view of first embodiment of the invention; With

Fig. 2 is the schematic schematic perspective view of second embodiment.

Each figure has represented a yarn package of bobbin bank, the yarn package be contained on the rotatable yarn package holder and it related tension force/stop mechanism.Other rotary yarn package of bobbin bank does not show, but each all has tension force/stop mechanism it self, that be equal to mutually.

Fig. 1 represents rotary yarn package 2, and it is installed on the bobbin bank vertical support column 4 one on yarn package holder or ingot axle that horizontal axis rotates.In vertical plane surface, adapter plate 6 laterally is fixed on the vertical pillars 4.What column pivotally linked to each other therewith is an element that pivots 8, and what be fixed together with plate 6 is U-shaped element 10 generally speaking, and the U-shaped element is the pole form, extend the yarn package above, its arm parallels with the axle center of yarn package.

The element 8 that pivots comprises one from holding 13 to begin horizontal expansions and be fixed on to hold 13 circular rod type control of braking arm 12.Arm 12 is L shaped, it parallel with the axle center of yarn package with the part 14 that yarn 8 joins and also its length yarn package length of making peace greatly identical.Part 14 is extended with a decurved part 16.

Also be the end that the another side of the pivot 18 that faces toward with arm 12 is fixed with a braided nylon rope 20 around the other end of the moving rotating element 8 of pivot, the other end of rope 20 is fixed on the forearm of U-shaped framework 10.Between the two ends of rope it be on the belt wheel (not shown) at plastic mold injection around about 1.5 or more circle, belt wheel is to be fixed on the inner of yarn package.

One end of coil spring 22 is fixed on the part that pivots on the element end (with the end end vis-a-vis that is extended with control of braking arm 12).The other end of spring and post 24 fix, and element produced to pivoting to adjust spring to do up and down adjustment.

Other spring that connects mutually with the yarn package on same post and yarn package 2 are the same also to be to fix and can do common adjustment with separately pivot element 8 and post 24.In addition, all right cylinders in the bobbin bank itself can jointly be adjusted with an independent horizontal adjustment element.The PCT patent that such mechanism is mentioned on us has been done detailed description in examining and asking.

U-shaped framework 10 is by the steel wire lateral member 26 of two end buckles of crosswise fixed on the parallel arms that is chosen in it.The position of lateral member between arm is arbitrarily.It with arm determined yarn when the yarn package pulls out must process the zone.Just can be in whole coiling round-trip length yarn be limited with this method so that yarn can not fall from an end of yarn package during in unwinding.Lateral member can put very closely mutually or branch Kaiyuan City some, this will decide according to the geometric configuration of yarn package and the performance of institute's unwinding material.

The yarn of pulling out from the yarn package on the forearm of U-shaped framework 10 and control of braking arm 12 below by.It has moved on to immediately on the postbrachium (not shown) of the U-shaped framework in its front and has moved then.

When normal unwinding operation, yarn overcomes main or is all pulled out from the yarn package by the tension force that pivots the appropriateness that element 8 produced.Act on yarn on the arm 12 and make arm overcome its weight and the power of spring 22 and be raised to the position of rising, yarn operation below it is general to keep straight or some skew slightly.So also just make to be in to pivot on the element end opposite with arm 12 and be positioned at extreme lower position, thereby rope is loosely on belt wheel, the tension force that is produced by its is very little or equal zero.

Should be noted that arm only is to rise slightly, so that " braking " is eased in this concrete device.Yarn tension can stop and makes arm enter into the power that its extreme lower position is gone then, and arm will further be risen, up between the downward power of yarn tension and arm mutually till the balance.When operation, because the power of antagonism will strive for keeping balance, so arm has a continuous motion up and down.When yarn moved, rope and did not produce big influence to unwinding tension loosely on belt wheel.

When machine stopped, the tension force of yarn disappeared immediately, adopted the position shown in the figure, and arm 12 falls.Thus, pivot element ground it have arm 12 an end to the whereabouts, and the other end that pivots element lifts, and makes rope tightly on belt wheel.With regard to there being a strong braking force to act on the belt wheel, the yarn package is stopped immediately like this.

Concrete device shown in Figure 2 is similar with concrete device shown in Figure 1, and its key distinction is:

The end section that-arm 12 neither ones are curved down; But it has an end off-position spare 30

-pivot element 8 and comprise control of braking arm 12, bend to the L type by a pole and form;

-pivot element 8 pivot facing to having an adjustable counterweight 32 on the opposite side of arm 12;

-pivoting element 8 and also have the adjustable member 34 that is connected with rope, it makes the point of connection of rope 20 and the distance that pivots between the element 8 changes so that braking force obtains change.

Can see that in Fig. 2 belt wheel 36 is the inside ends in the yarn package.

Shuo Ming invention herein also can be shared with a vertical guiding device of sending, we as the PCT patent mentioned in front examine please in illustrated.The arm of U-shaped element also can support usefulness, and the yarn that moves is played the change of direction effect.For the yarn of a given yarn package, comparatively the way of Shi Heing is the postbrachium top that forwards the U-shaped framework that one of front and yarn package link immediately to; And the place ahead yarn package that can be bobbin bank provides special support.

Claims

1. bobbin bank that several rotary yarn package holders are arranged, each yarn package holder have a belt wheel and one at least on the belt wheel around on the flexible thin component of a circle, each yarn package holder has the tension force of a yarn that the yarn package from yarn package holder is pulled out to reduce to make the mechanism of response, the flexible thin component of this mechanism tension on the belt wheel, and produce brake action.

2. according to the bobbin bank of claim 1, wherein: the mechanism of said each yarn volume holder comprises a control of braking arm mould, the horizontal expansion of the yarn that this arm is pulled out along the yarn package from yarn package holder, yarn operation and being in contact with it below the control of braking arm, the position of control of braking arm is controlled by yarn, and control of braking arm then the tension degree of the flexible thin component of control on the belt wheel.

3. according to the bobbin bank of claim 2, wherein: the control of braking arm has the pivoting on the element of pivot of approximate horizontal laterally to extend since one, flexible thin component is connected and pivots on the element, the control of braking arm be contained in a side of pivot and flexible thin component institute bonded assembly position at the opposite side of pivot.

4. according to the bobbin bank of claim 3, wherein flexible thin component can be connected along pivoting position through selecting on the element.

5. according to the bobbin bank of claim 3 or 4, wherein: pivot that element has adjustable counterweight and/or by an action of the spring.

6. according to claim 3,4 or 5 bobbin bank, wherein: an end of flexible thin component with pivot that element is connected and its other end is fixed on the connecting element of bobbin bank.

7. according to the bobbin bank of the said arbitrary claim in front, wherein: each yarn package holder is combined with a frame element, frame element determine yarn pull out the zone of process.

8. according to the bobbin bank of claim 7, wherein: frame element has parallel pole, pole be parallel to the axis of yarn package holder and extend and by two lateral direction elements institute across, one in two lateral direction elements is adjustable so that the spacing between them can be adjusted at least.

9. according to the bobbin bank of claim 8, wherein: frame element be U-shaped and have a lateral direction element that can on frame element, adjust on two.

10. according to the bobbin bank of the said arbitrary claim in front, wherein: the device that the tension force and/or the braking of all yarn packages on the bobbin bank are controlled jointly is provided.

11. according to the bobbin bank of the said arbitrary claim in front, wherein: flexible thin component is walked around 540 ° at least on belt wheel.