CN203602819U

CN203602819U - Pneumatic splicer

Info

Publication number: CN203602819U
Application number: CN201320639503.4U
Authority: CN
Inventors: 罗伯托·巴迪亚利; 毛罗·戴尔皮普; 毛罗·普雷米
Original assignee: Savio Macchine Tessili SpA
Current assignee: Savio Macchine Tessili SpA
Priority date: 2012-10-16
Filing date: 2013-10-16
Publication date: 2014-05-21
Anticipated expiration: 2023-10-16
Also published as: CN103726148B; ITMI20121748A1; EP2722299A1; IN2013MU03232A; EP2722299B1; CN103726148A

Abstract

The utility model relates to a pneumatic splicer comprising a splice chamber (3), two yarn tails (1''' and 2''') to be spliced are supplied from the opposite sides, and for each yarn tail (1''' or 2'''), clamping devices (6 and 7), preparing devices (4 and 5) and cutting devices (8 and 9) are provided. The clamping devices (6 and 7) are arranged in a mirroring mode relative to the splice chamber (3), located on one side of the splice chamber (3) and used for clamping the yarn tails (1''' and 2'''). The preparing devices (4 and 5) and the cutting devices (8 and 9) are located on the other side of the splice chamber (3). For each yarn tail (1''' or 2'''), the splicer further comprises selectivity keeping and releasing devices (8', 8'', 8''', 9', 9'' and 9''') which are located on the same side of the cutting devices (8 and 9) relative to the splice chamber (3). The pneumatic splicer is very simple, economical and very effective.

Description

Pneumatic joint device

Technical field

The utility model relates to a kind of pneumatic joint device for weaving loom, specifically for coil winding machine.

Background technology

Be known that weaving loom (such as coil winding machine) is provided with multiple workbenches, piecing devices be installed to recover the continuity of yarn in each workbench.

In fact, from line feeding hammer (feeding bobbing) unwinding and be wound up in the process holding thing (package), the continuity of yarn can (for example be rectified one section of yarn to eliminate defect) or as required because the spontaneity fracture of described yarn is interrupted.

Successional another kind of interruption of reeling occurs in the time that line feeding hammer is finished.

The equipment that is called as a kind of mechanical type of knotting mechanism is used as yarn joiner in the past.

But these mechanical yarn joiners are replaced by the yarn joiner of pneumatic type now, the utility model also belongs to this generic category.

These equipment are commonly called " splicer ", be defined as pneumatic, this is the fact of splicing and carrying out in the situation that not tiing a knot by the special air jet of splicing chamber inside due to the yarn end that will connect and engage, and wherein described end to be spliced is inserted into described splicing chamber in advance.

Such splicer is widely known by the people in the prior art, and for example at patent US6170247 and be much described in other patents and non-patent literature.

The known method of pneumatic joint device provides, from line feeding hammer with hold thing and first held thing head along different directions two one threads to be spliced out and catch and handle, then be inserted in splicer, before actual splicing, two one threads are shortened size at their opposite end places separately in splicer, and form yarn tail.

First, prepare these yarn tails, eliminate distortion and make fiber parallel, then retract, to there is required overlapped length.

Only at this moment, in Sha Weicai junction chamber, finally spliced by the jet of pressure fluid.

More specifically, be inserted in splicer by end not shown and that belong to the yarn of the specific thread feeding device guiding of prior art here, free end is arranged on the opposite side of junction chamber, and each free end is arranged in its line feeding separately hammer or hold in the side that thing is relative.

In other words, hold thing yarn end and himself be positioned at below junction chamber, and line feeding hammer yarn ends portion is positioned at top, junction chamber.

In this position, two one threads are located clamped on one point, two free ends are positioned at and prepare nozzle place.

The terminal part (being called as yarn tail) of end is then cut before being hunted down and being transported in preparation facilities, and in preparation facilities, the distortion at the eliminating atmosphere cutting tip place of high flow capacity and flow velocity also makes fiber parallel.

In this way, obtained and there is the yarn tail that is suitable for follow-up opened fiber of splicing.

Be known that at present improved yarn tail preparation is equivalent to improved splicing.

So then the yarn tail of preparation retracts by known yarn tail restoring device, to adjust the length in junction chamber, and is finally transported in junction chamber, and in junction chamber, by eddy current with impact, the braiding that fluid jet forms fiber also produces pneumatic the splicing of expecting.

According to the type of splicer, junction chamber can be used or also can be closed with lid according to former state.

Finally, himself is repositioned at starting position by splicer, and disengaging engages with line feeding tup.

Therefore, above-mentioned pneumatic joint device comprises: junction chamber, and yarn to be spliced is inserted in described junction chamber; For the mechanism that clamps and cut yarn tail; For the mechanism of preparing yarn tail before splicing; Be used for closing the mechanism of the lid (if existence) of described chamber; Be used for the mechanism of the length that regulates yarn tail; Be used for the mechanism of the air-spray that regulates preparation facilities; Be used for the mechanism of the air-spray that regulates junction chamber; And the relieving mechanism of splice yarn.

Briefly, the order of operating procedure is set to:

1. intercept line feeding hammer yarn and hold thing yarn and hammer line feeding into shape yarn and hold thing yarn and be inserted in junction chamber, this operation completely by line feeding tup, by mouth and supply or carry out by means of the special supply of splicer in other cases;

2. close chamber cap (if existence);

3. clamp and cut yarn tail;

4. the pneumatic preparation of yarn tail;

5. retraction yarn tail;

6. in junction chamber, blow;

7. discharge yarn and device is back to starting position.

Should be noted that, in order to realize good splicing, importantly, the yarn tail in the moment occurring before preparation facilities at it has identical length, once thereby be inserted in preparation facilities and to stand keen draft moving, just preferably with repeatably evenly mode prepare yarn tail.

For this object, use the control function of yarn tail in the cutting moment, thus itself and normal the same not description, and occur between step 3 and step 4.

In fact, in the situation that not there is not this function, after cutting, yarn tail may have unsuitable self poisoning for its follow-up preparation, and this is the character due to yarn, its unstability, or yarn may contain the elastomeric fact; For example, having in the yarn of S or Z distortion, cut yarn tail and can move along a direction in the first situation, in the second situation, move in opposite direction, and have added core of elastomer in yarn inside, effect is that uncontrolled elasticity shortens effect.

The preparation of yarn tail is implemented by the gassing time of setting preparation facilities, conventionally continues 50/1000ths to 500 seconds; The initial part of this time is used for catching yarn tail, and the remainder of this time is used for preparing described yarn tail, to go distortion and make fiber parallel.Obviously importantly, it is not only short as far as possible to catch the time that yarn tail spends, and between two preparation facilities want even and identical (homogenous), in order to realize this purpose, yarn tail must exist in an identical manner all the time before preparation facilities, to make capture time limited, even and identical.

On the existed facts of yarn tail control function, prevent, just locate self before preparation facilities inadequately once yarn tail is cut, determine irregular catching and the risk of imperfect preparation thereby have, this so that cause faulty splicing, or the mistake of even splicing.

On market, obtainable various devices have been realized this function with regard to structure, and difference is only trickle variation.

In fact this can utilize pressurization or suction air to realize or by providing labyrinth mechanically to realize.

Pneumatic function is provided by preparation facilities conventionally, and in first step, preparation facilities operates with low flow velocity; The Air Flow of this low speed is used for controlling yarn tail before cutting, makes yarn tail adopt definite position, thereby one cut, and yarn tail just suitably provides himself to preparation facilities.

Flowing velocity must be very low, to do not cause the random risk extending of yarn portion section between junction chamber and cutting mechanism, this will cause the inhomogeneities of the preparation between yarn tail.

In the time that preparation facilities operates with high flow rate, yarn tail be hunted down and by the keen draft that is produced carry before exist; Once be inserted into, air stream just goes distortion and makes fiber parallel end.

Therefore, provide a kind of control method of normally used yarn tail for controlling the low-pressure pneumatic jet (being sometimes called as pre-air blowing) of yarn tail, because it utilizes the preparing mechanism in splicer Already in, and made their runnings with low flow velocity.

But the efficiency of the method is relevant to pending yarn types.

And, supply by electromagnetic valve that air stream and normally performance are opened or the splicer of closure function in, extra difficulty reaches low flow velocity exactly.

Machinery labyrinth makes simple, but also has shortcoming, can not be effective equally along with the variation of the specification of yarn and distortion.In order to overcome this shortcoming, mechanical labyrinth can regulate or change according to yarn, but this is by the too expensive running cost of needs.

Therefore, problem to be solved normally provides the alternately control of yarn between cutting and preparation, and this control can obtain larger additional safety with above-described utilization compared with the method for pneumatic or mechanical labyrinth.

Obviously, the solution proposing is simple especially, economical and effective especially.

Utility model content

According to the utility model, these objects realize according to disclosed pneumatic joint device in the utility model by manufacturing.

Procedure of processing will be according to describing in detail in more general embodiment of the present utility model.

Other features of the present utility model aspect other of the utility model embodiment shown in.

Provide a kind of pneumatic joint device according to an aspect of the present utility model, comprise junction chamber, be supplied with two yarn tails to be spliced from opposite side, for each root in described yarn tail, provide and arrange in mirror image mode with respect to described junction chamber, be positioned at a side place of described junction chamber described yarn tail clamping device and be positioned at preparation facilities and the cutter sweep on the opposite side of described junction chamber, it is characterized in that, for every yarn tail, described pneumatic joint device comprises with respect to described junction chamber and being positioned in a side identical with described cutter sweep, selective maintenance and the releasing device of described yarn tail,

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, the described selective maintenance of described yarn tail and releasing device are configured to coordinate with described cutter sweep, so as before cutting, to start to keep described yarn tail and start described yarn tail prepare pipe in discharge described yarn tail after dispense pressurised air.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, described cutter sweep comprises moving blade and fixed blade, described selective maintenance and the releasing device of described yarn tail comprise relative mechanism, described blade is relative to each other located so that with described relative mechanism, described moving blade slides between described fixed blade and described relative mechanism, and make during described moving blade advances, to start the described maintenance of described yarn tail before cutting, and start described yarn tail prepare pipe in start described release after dispense pressurised air.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, described fixed blade is elastic force type, and described relative mechanism is fixed on a position, to press yarn against advancing described moving blade.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, described fixed blade is non-elastic force type, and described relative mechanism is elastic force type.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, described preparation facilities comprises and the preparation pipe of preparing fluid nozzle and being connected, described nozzle transmitting enters the described fluid jet of preparing pipe, wherein, be included in thread segment between described yarn tail and described junction chamber through described preparation facilities, to be subject to directly affecting of the described jet of preparing nozzle.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, described thread segment through described preparation facilities is comprised in described preparation nozzle and described preparation between pipe, to managed by described mobile directly the affecting and be forced into described preparation under described mobile thrust of preparing nozzle.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, the described nozzle of preparing is aimed at the described ingress port of preparing pipe, enters described preparation pipe and directly forces described yarn to enter described preparation pipe to directly send fluid jet.

Particularly, according to the pneumatic joint device of an aspect of the utility model, wherein, the described pipe of preparing has common horizontal direction, and described horizontal direction is parallel to the principal direction of the described jet of preparing nozzle generation.

Will be apparent the description of being undertaken by limiting examples from the schematic figures referring to appended according to the feature and advantage of pneumatic joint device of the present utility model.

Final comprehensive in, the scheme that the utility model proposes comprises that the cutting of carrying out especially blink at cut point place just processes yarn tail, then discharges yarn tail, catches immediately and prepares so that yarn tail is produced device.

In other words,, after cutting, two ends of yarn are limited in two points of upstream and downstream of junction chamber.

For this purpose, in a side of junction chamber, use standard fixture, and on opposite side, in pneumatic joint device, inserted the device that can keep newly cutting yarn tail, to guide better them to advance towards preparation facilities.

Particularly, introduced clipper, it is configured to is not only cutting, and keeps new cutting yarn tail, thereby it can not freely be moved, thus the uncontrolled motion causing without undergoing the type due to yarn, unstability and distortion.

Advantageously, this further ability of clipper is independent of type, its specification, type, unstability, distortion, the elastomeric interpolation of cut yarn tail, and always only discharges yarn tail in the correct moment.

The correct moment refers at full speed and therefore the catching and carrying when execution with maximal efficiency of the yarn tail in preparation facilities of preparation facilities.

Example with reference to the accompanying drawings, has yarn tail and keeps the clipper of function to comprise moving blade, fixed blade and relative mechanism (contrast organ).

Particularly, these three elements relatives, in arranging each other, make during cutting, and by the elastic force being for example applied in fixed blade or relative mechanism, these three elements are forced together.

In this way, the moving blade entering between relative mechanism and fixed blade is slightly pressed, so that yarn is cut in the time that moving blade continues its stroke, and is flexibly trapped between the non-cutting side and relative mechanism of moving blade at least partly.

In the time that blade is retracted, yarn tail is released, and above-mentioned pressing force is removed.

Accompanying drawing explanation

Process described above schematically shows in Fig. 1 to Fig. 6, and the new operating sequence providing according to splicer of the present utility model is provided described accompanying drawing.

Fig. 1: line feeding is hammered yarn into shape and held the intercepting of thing yarn and the insertion in splicer;

Fig. 2: the closing of chamber cap (optionally);

Fig. 3: the clamping of yarn, the maintenance of yarn tail and cutting, innovation ground is that yarn tail is comfortless;

Fig. 4: preparation facilities moves at full speed;

Fig. 5: the opening and the follow-up release of yarn tail of clipper;

Fig. 6: immediately insertion and the processing thereof of yarn tail in preparation facilities;

Fig. 7: the retraction of yarn tail;

Fig. 8: blow in chamber;

Fig. 9: discharge yarn and be back to starting position.

The specific embodiment

Referring to figs. 1 through Fig. 9 and shown reference number wherein, be highly susceptible to understanding according to the function of splicer of the present utility model.

Fig. 1 shows to be just introduced in and holds thing yarn 1 and line feeding hammer yarn 2 in splicer.

Hold thing yarn 1 and handle and take out of junction chamber from top downwards.

On the contrary, line feeding hammer yarn 2 is upwards handled and is taken out of junction chamber.

Accompanying drawing also shows junction chamber 3,

preparation facilities

4 and 5, and described Preparation equipment has relevant preparation pipe 4' and 5' and nozzle 4'' and 5'' for fluid jet.

The fixture 6 that holds thing yarn 1 is also depicted as has carriage release lever 6' and block 6'', and the fixture 7 of line feeding hammer yarn 2 has carriage release lever 7' and block 7''.

Finally, show the clipper 9 of the innovation that holds thing yarn 1, it is equipped with relevant moving blade 9', the relative 9''' of mechanism and fixed blade 9''.

Similarly, the clipper 8 of line feeding hammer yarn 2 is equipped with relevant moving blade 8', the relative 8''' of mechanism and fixed blade 8''.

In Fig. 1, show not all splicer elements of operation in all the other positions.

Fig. 2 shows the layout of the

yarn

1 and 2 after the clamp operation of

corresponding fixture

6 and 7 just.The clamping of

yarn

1 and 2 makes it carry out against fixed stop 6'' and 7'' by closing carriage release lever 6' and 7'.

The layout of clamped yarn when Fig. 3 shows when yarn tail excision and retains step and start.Hold thing yarn 1 clamped on upside by fixture 6, and on downside, remain between the moving blade 9' of clipper 9 and the relative 9''' of mechanism that it is partly crossed over, thereby limit the end 1' of yarn 1.

Similarly, line feeding hammer yarn 2 is clamped on downside by fixture 7, and on upside, remains between the moving blade 8' of clipper 8 and the relative 8''' of mechanism that it is partly crossed over, thereby limits the end 2' of yarn 2.

Fig. 4 shows

clipper

8 and 9 completes the subsequent step of its stroke.Moving blade 9' and 8' and fixed blade 9'' and 8'' are overlapping, only chopped strands after reserve part 1' and 2'.The section 1' of yarn portion and 2' still correspondingly remain between moving blade 9' and the relative 9''' of mechanism and moving blade 8' and relatively between the 8''' of mechanism.

By

clipper

9 and 8 cut section 1'' of yarn portion and 2'' by self known and here unshowned suction nozzle with battery unit be removed.

Form like this two the yarn tail 1''' and the 2''' that are included between reserve part section 1' and 2' and junction chamber 3.

Fig. 5 shows the layout of the yarn after preparation facilities is supplied with high flow rate fluid.The nozzle 4'' of

preparation facilities

4 and 5 and 5'' transmitting enter two strands of high-pressure fluid jets in preparation pipe 4' and 5'.

Preparation facilities

4,5 comprises and the preparation pipe 4', the 5' that prepare nozzle 4'', 5'' fluid and be connected, and wherein, nozzle 4'', 5'' transmitting enters the fluid jet in preparation pipe 4' and 5'.

Therefore, yarn tail 1''' and 2''' be in the face of the entrance of respective tube 4' and 5', to locate fully self, is convenient to subsequently to remain on some 1' between blade 9' and 8' and the corresponding relative 9''' of mechanism and 8''' and the moment of 2' is hunted down by managing 4' and 5' in release.

Particularly, yarn be included in part between yarn tail 1''', 2''' and junction chamber 3 through

preparation facilities

4,5, to prepared directly the affecting of jet of nozzle 4'', 5''.

Being comprised in and preparing between nozzle 4'', 5'' and preparation pipe 4', 5' through the part of

preparation facilities

4,5 of yarn, so as before discharging yarn tail 1''', 2''', to be prepared nozzle 4'', 5'' mobile directly affect and under described mobile thrust, be forced into described preparation pipe 4', 5'.

According to an embodiment, prepare nozzle 4'', 5'' and aim at ingress port 4''', the 5''' of preparation pipe 4', 5', to fluid jet is directly transported in preparation pipe 4', 5' and directly forces yarn to enter described preparation pipe 4', 5'.

According to an embodiment, preparation pipe 4', 5' have common transverse direction Y-Y, and this horizontal direction is parallel to the principal direction of the described jet of preparing nozzle 4'', 5'' generation.

Fig. 6 shows just being moved yarn 1''' after discharging of blade 9' and 8' and the layout of 2''', and wherein said moving blade moves backward, with some 1' and the 2' of maintenance before discharging.

Yarn tail 1''' and the 2''' moment before it is released illustrates with alphabetical a with continuous lines, and illustrates and be inserted in preparation pipe 4' and 5' with identical yarn tail 1''' and the 2''' that flow through being exposed for its fluid of preparing with alphabetical b with dotted line.

Once Fig. 7 shows the length of retracting and expecting towards junction chamber 3, the respective end 1'''' of yarn tail 1''' and 2''' just prepare with 5 by preparation facilities 4 with 2'''' and do not have distortion and fiber parallel.

Two carriage release levers 10 and 11, for expanding

yarn

1 and 2, make it depart from known manner its path, thereby make corresponding yarn tail 1''' and 2''' return to predetermined length towards junction chamber 3.

Yarn tail 1''' and 2''' after Fig. 8 shows in the joint 12 that is contained in

yarn

1 and 2, this is by utilizing known method that pressurized fluid jets is realized in junction chamber 3.

Fig. 9 shows final step, and wherein, carriage release lever 6' and 7' discharge two portion's sections of the

yarn

1 and 2 of splicing by joint 12 at present from block 6'' and the 7'' of

fixture

6 and 7.

Splicer is again in resting position, and can extract away the yarn of having spliced to recover operating winding.

Therefore, how realizing the above object of emphasizing according to pneumatic joint of the present utility model chamber is obviously.

In fact, while variation for yarn types, control the problem of new cutting yarn tail, represented the alternative of known joint device according to pneumatic joint of the present utility model chamber.

So the pneumatic joint device of the present utility model of design easily has numerous modifications and variations, and all these belongs to identical utility model design; And all parts can be by the technical Replacement being equal to.In practice, the material that uses, their actual size can change as required according to technical requirement.

Claims

1. a pneumatic joint device, comprise junction chamber (3), be supplied with two yarn tail (1''' to be spliced from opposite side, 2'''), for described yarn tail (1''', each root 2'''), provide and arrange in mirror image mode with respect to described junction chamber (3), be positioned at the clamping device (6 of the described yarn tail at a side place of described junction chamber (3), 7) and be positioned at the preparation facilities (4 on the opposite side of described junction chamber (3), 5) and cutter sweep (8, 9), it is characterized in that, for every yarn tail (1''', 2'''), described pneumatic joint device comprises with respect to described junction chamber (3) and being positioned at and described cutter sweep (8, 9) in an identical side, the selective maintenance of described yarn tail and releasing device (8', 8'', 8''', 9', 9'', 9'''),

Wherein, the described selective maintenance of described yarn tail and releasing device (8', 8'', 8''', 9', 9'', 9''') be configured to and described cutter sweep (8,9) coordinate, to started to keep described yarn tail (1''', 2''') and starting at described yarn tail (1''' before cutting, preparation pipe (4 2'''), 4', 5,5') in discharge described yarn tail after dispense pressurised air.

2. splicer according to claim 1, it is characterized in that, described cutter sweep (8, 9) comprise moving blade (8', 9') and fixed blade (8'', 9''), described selective maintenance and the releasing device of described yarn tail comprises the relative (8''' of mechanism, 9'''), described blade (8', 8'', 9', 9'') with the described relative (8''' of mechanism, 9''') be relative to each other located so that, described moving blade (8', 9') at described fixed blade (8'', 9'') with the described relative (8''' of mechanism, 9'''), slide, and made before cutting at described moving blade (8', 9') start described yarn tail (1''' during advancing, described maintenance 2'''), and starting at described yarn tail (1''', preparation pipe (4 2'''), 4', 5, 5'), after dispense pressurised air, start described release.

3. splicer according to claim 2, is characterized in that, described fixed blade (8'', 9'') be elastic force type, and described relative mechanism (8''', 9''') is fixed on a position, to press yarn against advancing described moving blade (8', 9').

4. splicer according to claim 2, is characterized in that, described fixed blade (8'', 9'') is non-elastic force type, and described relative mechanism (8''', 9''') is elastic force type.

5. splicer according to claim 1, it is characterized in that, described preparation facilities (4,5) comprise and prepare nozzle (4'', preparation pipe (the 4' that 5'') fluid connects, 5'), described nozzle (4'', 5'') transmitting enters the fluid jet of described preparation pipe (4', 5'), wherein, be included in the thread segment described preparation facilities of process (4,5) between described yarn tail (1''', 2''') and described junction chamber (3), to be subject to the direct impact of the described jet of preparing nozzle (4'', 5'').

6. splicer according to claim 5, it is characterized in that, through described preparation facilities (4,5) described thread segment is comprised in described preparation between nozzle (4'', 5'') and described preparation pipe (4', 5'), to discharging described yarn tail (1''', 2''') be subject to before described prepare nozzle (4'', 5'') flow direct impact and under described mobile thrust, be forced into described preparation pipe (4', 5').

7. splicer according to claim 5, it is characterized in that, described nozzle (the 4'' for preparing, 5'') with described preparation pipe (4', ingress port 5') is aimed at, so that directly sending fluid jet enters described preparation pipe (4', 5') and directly forces described yarn to enter described preparation pipe (4', 5').

8. splicer according to claim 5, is characterized in that, described preparation pipe (4', 5') has common horizontal direction (Y-Y), and described horizontal direction is parallel to the principal direction of the described jet of preparing nozzle (4'', 5'') generation.