CN1061012C

CN1061012C - Paper tube for winding filement

Info

Publication number: CN1061012C
Application number: CN94107259A
Authority: CN
Inventors: 田中纯吉
Original assignee: Tanaka Shikan Co Ltd
Current assignee: Tanaka Shikan Co Ltd
Priority date: 1993-12-10
Filing date: 1994-06-30
Publication date: 2001-01-24
Anticipated expiration: 2014-06-30
Also published as: CN1118761A; KR950017701A; KR100308095B1; TW317873U

Abstract

To provide a paper bobbin by which a yarn can be accurately caught and cut by providing, in pinching grooves, two kinds to four kinds of pressing pinching parts whose groove width is stepwise narrowed.An introducing groove 2 and pinching grooves 3 are provided on the outer peripheral surface near the end of a paper bobbin body part 1. The introducing groove 2 is composed of a wide opening part 4 and a V-shaped valley part 5 to be narrowed toward the bottom part from the opening part 4. The pinching grooves 3 are zigzag constituted, and its inner wall surface is a rough surface. Accordingly, a yarn easily enters the pinching grooves 3 from the introducing groove 2 in the automatic switching from a full wound paper bobbin to an empty paper bobbin. Since the pinching grooves 3 are formed into a zigzag shape, and since its inner surface is a rough surface and also since its pressing pinching part is formed into steps, the yarn can be impulsively and firmly caught, pinched and cut. Thereby the yarn take-up factor is greatly improved, and waste of yarn caused by poor take-up can be greatly decreased, so as to contribute to productivity.

Description

Paper tube for winding filement

The invention relates to the paper tube for winding filement that on spinning process such as polyester, nylon syntheticfibres, uses.

At present when batching the filements of synthetic fibres of senior ramuscule number such as polyester, its speed is very high, and again because of being the ramuscule number, curled hair is difficult, thereby has reduced the curled hair rate.Especially be directly to supply with silk continuously for syntheticfibres from spinning process, thereby, must automatically switch to strand on the sky paper tube from full coil paper pipe.When switching,, the strand phenomenon will occur accurately to catch, grip and cutting off, thereby take place bad to batching of empty paper tube because that the strand that begins to batch occurs is temporary transient loose.

Owing to supply with silk from spinning process with the speed that 6000-8000m/ divides recently,,, also can lose the strand more than 100 meters even postponed for 1 second in case it is bad that curled hair takes place.And, on an one rotating shaft, be embedded with a plurality of paper tubes usually when carrying out curled hair, curled hair to occur bad when a paper tube, all paper tubes curled hair that all must start anew on coaxial, the strand during this has all been wasted.

So, require the curled hair rate to reach 100% substantially.

Past works out various paper tubes in order to improve the curled hair rate.For example, at real fair 1-33565 number and real fair 3-30378 number device etc. of putting down in writing, as shown in Figure 8, used paper tube forms zig-zag or Z word shape gripping groove 13 and cut-out groove 14 subsequently at the lead-in groove 12 of the wide cut that is provided with circumferencial direction near the part of the periphery the end of its body 11, on its extended line.

This paper tube is owing to lead-in groove 12 forms wide cuts, so can more easily import strand, because of gripping groove 13 is a zigzag, and its inner face is coarse, thus can grip strand more exactly, and can accurately cut off strand substantially at cut-out groove 14, thereby reasonable curled hair rate is arranged.

, the paper tube of this past be because gripping groove and cut off groove and be carved into cutlery because of the cutlery of processing is sharp inadequately, or because of the abrasion distortion, can not obtain identical machining shape, with the shape that requires not simultaneously, the curled hair condition of poor then appears.

Have again, when groove is carved into back generation alteration of form, also can causes the seizure of silk and cut off obstacle.Just if occur groove with thread between relationship change the time, also can influence the curled hair rate.Variation between groove and the strand mainly contains following three reasons:

1. cause error in the processing because of machining tool and paper tube material;

2. cause the error that the processing part constantly changes because of humiture;

The adjustment of 3. different silk kinds and danier.

Based on the problems referred to above, the paper tube that can accurately catch and cut off strand is developed in the urgent expectation of this specialty.

In view of this present situation, the present inventor has finished paper tube of the present invention finally through wholwe-hearted research.The principal character of this paper tube is: be carved with the gripping groove that opposite face in the lead-in groove of groove amplitude broad and the groove is more coarse, be seen as flexagon from the plane near the outer peripheral face the paper tube body end.The width of this gripping groove is continuously or stage ground narrows down.

Lead-in groove is in order to import gripping groove (aftermentioned) to silk and to make, for strand is imported on a small quantity movably at transverse direction, on the paper tube surface, make the groove of grooving width of cloth broad, in order exactly silk to be delivered to gripping groove, trough valley portion generally forms and is seen as linear from the plane, see roughly from section and be in the shape of the letter V.In addition, deep trouth portion is the same with the described gripping groove in back, also can form from the plane and be seen as flexagon.For strand is entered with comparalive ease, at this moment, the width of this flexagon groove is bigger than the width of gripping groove.

Gripping groove is to grip the part that strand keeps batching silk when beginning, if can not keep strand exactly here, useless silk will occur.It is flexagon that the shape of groove is seen from the plane, is opening to be expanded in the end of the outer peripheral face of paper tube trunk open (getting R).Said in this manual flexagon is meant carefully to be converted into serration or zigzag.The degree of zigzag (relation between quantity, angle, the groove width etc.) can freely be selected, and limited naturally by the diameter of silk.Making zigzag is in order to increase the resistance of strand.Like this, comprise opening part, blade that need not be sharp, promptly a part of available rough blade is carved and is established, and this is also can increase the strand resistance because make asperities.

Also have, on the extended line of gripping groove, also can be provided with the gap very little see the linearly groove of shape, the promptly so-called groove that connects airtight from the plane.

Usually above-mentioned lead-in groove, gripping groove and the groove that connects airtight in case of necessity are located on the part of paper tube periphery, also can roughly be provided with on full week.In other words, gripping groove and lead-in groove couple together setting, be not in paper tube week entirely in addition, but stop halfway, again with connect airtight groove and be connected.The width of this gripping groove, at lead-in groove side broad, and narrower at termination (perhaps connecting airtight the groove side).The variation of this well width both can have been taked the method that narrows down gradually, also can be only narrow somewhere, and it is narrow slightly and fully narrow at termination (or connecting airtight the groove side) that this is in the lead-in groove side.

As making its narrow means of taking,, form continuously or the interim groove that narrows down in the stage that forms gripping groove with cutter, in case after groove is carved into, push on this rooved face with compression tool, the distortion by the groove internal face at this moment narrows down groove, this method was both simple, and effect is good again.It to the structure of pressing method and compression tool without any restriction.Perhaps, make equally narrow gripping groove in advance, then, widen, do that like this width of groove is narrowed down gradually in some place.

Have, extruding place (extruding narrow) can be two or four again, and when well width was stage respectively and narrows down, then the curable grip of strand just is interim increased, it than continuous variation occasion can absorb move, i.e. the power of impact, thereby obtain more suitably paper tube.The shape (see for recess shape) of extruding narrow from the paper tube surface, Any shape can, can be rectangle, ellipse, platform shape etc.

The quantity of extruding narrow is decided to be two to four reason, except that above-mentioned effect aspect, also considers from economic point of view.Also have, the position and the size of the setting of extruding narrow are the length of circumferencial direction, also arbitrarily decision respectively, and under identical squeese pressure, if stage ground shortening compression tool can increase squeese pressure in the length of circumferencial direction, well width just can be interimly and dwindles.

As mentioned above, paper tube of the present invention is carved with lead-in groove and gripping groove near the outer peripheral face the end of its trunk, and, because the well width of this gripping groove is continuously or stage ground narrows down, when expiring the coil paper pipe when empty paper tube is changed, strand is easier to enter gripping groove from lead-in groove.Gripping groove makes zigzag, and inner face is coarse, and well width is continuous or interimly and narrows down, thereby can catch, grips and cut off strand securely.

Thereby improved the curled hair rate greatly, and alleviate the waste that causes strand because of curled hair is bad, help to increase productivity.

Embodiment with reference to the accompanying drawings explains as follows to the present invention.Wherein

Fig. 1 is the block diagram of an embodiment of the present invention's paper tube.

Fig. 2 is the end view drawing of the lead-in groove of paper tube shown in Figure 1.

Fig. 3 is the cross sectional drawing of paper tube shown in Figure 1 without the gripping groove of extruding.

Fig. 4 is the end view drawing of paper tube shown in Figure 1 without the gripping groove of extruding.

Fig. 5 is the end view drawing of extruding narrow of the gripping groove of paper tube shown in Figure 1.

Fig. 6 is that the another kind of the gripping groove of paper tube shown in Figure 1 pushes the end view drawing of narrow.

Fig. 7 is the block diagram of another embodiment of the present invention.

Fig. 8 is the block diagram of paper tube in the past.

Fig. 1 is provided with lead-in groove 2 and gripping groove 3 for the block diagram of an embodiment of the present invention's paper tube near the outer peripheral face paper tube trunk 1 end.The section of lead-in groove 2 is formed to the bottom paddy portion 5 that narrows down gradually that is in the shape of the letter V by the peristome 4 of groove width of cloth broad and from peristome 4 as shown in Figure 2.Gripping groove 3 is the zigzag structure, and inner wall surface thereof makes rough surface.

On this gripping groove 3, be provided with three places extruding narrow (being respectively extruding narrow A, extruding narrow B, extruding narrow C).Fig. 3 is the section without the gripping groove of extruding, because groove is a zigzag, can see the front end of joggling part near the center.Also have, with dashed lines has roughly been represented the groove position of full swing to the left and right in this figure.

Fig. 4 is the end view drawing of gripping groove, is the state shown in the dotted line from the direction of arrow A through extruding, and it is the section of extruding narrow A.

Fig. 5 is the end view drawing of extruding narrow B, and it is narrow than the groove of the dotted line part of Fig. 4 as can be seen.And just well width does not narrow down, and because the top of groove is narrower, just is difficult for deviating from case silk enters in the groove. its inwall forms rough surface 6 (Fig. 4 omits this).Fig. 6 is the end view drawing of extruding narrow C, and its cell wall pastes very closely, does not almost have width.

Fig. 7 is another kind of embodiment of the present invention, and gripping groove 3 does not resemble and is processed into several extruding narrow the fwd example, only is provided with a recess 21.Though illustrated embodiment recess 21 is rectangles, also allow to make other shape, as shape (not shown)s such as ellipse, steps.This recess 21 utilizes compression tool in the working direction method of pressure boost progressively, and the well width of gripping groove 3 is narrowed down gradually.The gripping groove 3 that makes by this method is compared with structures that several extruding narrow are arranged of introducing previously, though that the strand curable grip has slightly is inferior, because the gripping groove simple structure, thereby have the more cheap effect of cost.

Claims

1. paper tube for winding filement, be carved with on the outer peripheral face of the end of paper tube body that opposite face makes rough surface in the lead-in groove of well width broad and the groove, be seen as the gripping groove of bended from the plane, it is characterized in that: the well width of this gripping groove is continuously or stage ground narrows down gradually.

2. paper tube for winding filement according to claim 1 is characterized in that: the lead-in groove of well width broad is made up of the deep groove of darker trough valley portion a peristome and a part, and this deep groove is seen as bended from the plane.

3. paper tube for winding filement according to claim 1 and 2 is characterized in that: for the well width that makes gripping groove narrows down with being continuous or stage, can take pressing method.

4. paper tube for winding filement according to claim 3 is characterized in that: processing progressively increases squeese pressure with compression tool by working direction and finishes.

5. paper tube for winding filement according to claim 3 is characterized in that: processing is to be the extruding narrow that stage ground narrows down and to carry out by two to four kinds of groove widths are set.