CN101765555A

CN101765555A - spindle for winding yarns on winding tubes or tubular winding cores

Info

Publication number: CN101765555A
Application number: CN200880020270A
Authority: CN
Inventors: 马里耶拉·克罗蒂
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-15
Filing date: 2008-06-12
Publication date: 2010-06-30
Also published as: US20100212280A1; EP2155595A1; RU2010101064A; ITFI20070134A1; WO2008152673A1

Abstract

The spindle (1) comprises, in proximity of one end, an axial locking member (21) of the winding tube (3). The locking member can assume an active condition of axial locking of the tube as a result of rotation of the spindle and an inactive position when the spindle is not moving.

Description

The spindle that is used for coiling yarn on bobbin or tubular winding core

Technical field

The present invention relates to a kind of be used to reel yarn and formation spool, bobbin or similar equipment around coiling core or coiling pipe.

More specifically, the present invention relates to improvement, promptly relate to bobbin or tubular winding core and reverse the improvement of assembling the electric drive axle on it, so that form the spool or the bobbin of yarn around to winding spindle.

Background technology

For the yarn of reeling, the yarn of directly sending into from extrusion press at synthetic threads for example will use the electronic spindle of high speed revolution.Bobbin or tubular winding core are inserted on these spindles, and wherein yarn forms turn around bobbin or tubular winding core.Use the thread-carrier of the alternating movement yarn of reeling, at least one element of thread-carrier is basically parallel to the rotating shaft of spindle or bobbin.Winding speed is very high, and present development tendency is to rely on the speed that continues to increase to come increase productivity, thereby reduces the cost of the yarn of reeling in batches.

By the profile that is shaped, for example polygon makes between spindle and bobbin or the core and reverses connection, thereby makes the spindle of rotation drive the bobbin rotation.Bobbin axially is defined with respect to spindle usually.For this reason, in some cases, provide conical sleeve, be used to be inserted into bobbin or in-core, on the diameter that frictionally engages within spindle.In fact, because sleeve pipe has different diameters, and for the consideration of structure and wearing and tearing aspect, in most of the cases, bobbin or core only are that the effect owing to gravity is limited on the spindle.

Along with the increase of spindle rotating speed, guarantee that the safety of these machines also becomes more and more important.At first when high-speed cruising, a problem of existence is that bobbin or core are tending towards vibration, the winding spindle so that bobbin or core slip away during forming reel for yarn and thread gradually.Also because indenture appears in bobbin or core often, from rather than absolute cylindrical such fact and cause these vibrations.

Summary of the invention

The purpose of a specific embodiment of the present invention provide a kind of on bobbin the spindle of coiling yarn, described shortcoming before it can completely or partially overcome.

On the one hand, the invention provides the spindle of reel for yarn on the bobbin, it comprises the axial locking member near the coiling pipe of spindle axis end.Locking member is in off-position owing to spindle rotates the control position of the axial locking that is in pipe when spindle does not move.This makes the spindle safe operation, and need not any operational motion of operator, and for example spindle activates locking member in the above simple rotation of minimum speed limit, therefore, forms intrinsic anti-slip effect on every side on bobbin or core and the associated roller that forms thereof.When spindle did not move, locking member automatically returned to off-position, did not therefore hinder the packing yarn to be formed on removing of pipe on every side and the replacement of new pipe subsequently.

In a preferred embodiment of the invention, axially locking member activated with the drag that opposing is tending towards making locking member move to off-position by centnifugal force, promptly discharges.

In an optional embodiment, axially locking member is at described off-position elasticity pressurized.In different embodiment, axially locking member is because the weight of locking member is in off-position.When spindle rotates, centrifugal action on these locking members, thereby locking member is shown in an open position.

Locking member can radially expand and preferably be arranged in the end near spindle, promptly is positioned near the end portion that bobbin or core be inserted into the spindle axis on it.

In an optional embodiment, radially scalable or expandable element can comprise or be made of the tab around substantially horizontal axle swing, described tab owing to its weight is in retracted position, is in extended position when spindle rotates with the fair speed that is higher than minimum cireular frequency when spindle does not move or rotates under finite angle speed.

In another different embodiment, locking member can be made of for example bar or the tab that are contained in the spindle housing, and perhaps more precisely, bar or tab are positioned at the axle of spindle, and near its terminal.Can provide elastic element to be used for that locking member is remained on described seat.When spindle began with the rotation of enough speed, this locking member was defined, thereby the centnifugal force that elastic-restoring force can be applied at locking member overcomes.For example, locking member can be to slide in housing radially and have the slide block of elastic traction part, and described traction piece is got back in the radial seat of spindle slide block.In a different embodiment, locking member can comprise bar, arm or slide block, bar, arm or slide block around be arranged essentially parallel to the spindle axis that has retracing spring axle hinged, retracing spring is pressed into bar, arm or slide block the corresponding enclosure interior that forms in the spindle.

Other features and specific embodiment according to spindle of the present invention will obtain embodying by dependent claims, and in the non-limiting example based on the specific embodiment of the invention more detailed description will be arranged below.

Description of drawings

By hereinafter and accompanying drawing can better understand the present invention, these contents are used to illustrate non-restrictive example of the present invention.Particularly, in the accompanying drawings:

Fig. 1 represents the lateral plan of spindle;

Fig. 2 represents to be inserted in the bobbin on the winding spindle or the partial side view of coiling core;

Fig. 3 represents to be inserted with the longitdinal cross-section diagram of Fig. 1 spindle of pipe among Fig. 2;

The enlarged drawing of Fig. 4 presentation graphs 3 parts; With

Fig. 5 represents the section drawing by V-V direction among Fig. 4.

The specific embodiment

With reference to accompanying drawing, numeral 1 whole expression is used for around the spindle of bobbin or core coiling yarn, and wherein bobbin or core are by numeral 3 expressions.Spindle is connected with motor 5, and motor 5 drives spindle and rotates around longitudinal axis A-A.

Spindle comprises wireline reel 7, this axle reverses with motor 5 and connects, and has a substrate 7A, this substrate 7A has the columniform basically extension of band bottom 7B, bottom 7B has for example polygonal cross-section or the under any circumstance profile of non-cylindrical, thereby forming to reverse with bobbin 3 connects, and bobbin 3 is inserted on the

axle

7,7A, 7B of spindle 1.In this embodiment, the bottom 7B with non-circular cross sections is surrounded by sleeve pipe 9, and sleeve pipe 9 forms a groove with described bottom 7B, and the terminal 3A of bobbin or core 3 inserts in the groove.

This bobbin portion within it has ring ring 11 near terminal 3A place, make bobbin be positioned at the guide of center with respect to spindle so that form, ring ring 11 limits the inner cylindrical surface that has basically with the diameter of the equal diameters of the substrate 7A of the axle 7 of spindle 1.Below ring 11, bobbin 3 has the inside surface 3B of band noncircular cross section, and itself and the shape complementarity of the bottom 7B of the shaping of axle 7 are so that form the connection of reversing between bobbin or core 3 and the spindle 1.

At the top free end relative with substrate 7A, axle 7 has spring washer 13, and in this embodiment, packing ring 13 has the shape of about annular.Although the packing ring of preferred annular because it can reduce tolerance and orientation problem, thereby can also use and has difform packing ring, for example O shape ring or pair of O shape ring.Packing ring 13 can be made by rubber or other elastomeric materials, and can radially outward be pushed by the elastic strip 15 (Fig. 4) between axle 7 and packing ring 13.This packing ring 13 on axial location with snap into bobbin or core 3 in-to-in conical sleeve 17 cooperate, thereby when bobbin 3 correctly is inserted on the wireline reel 7 of spindle 1, corresponding with packing ring 13.Like this, realized bobbin 3 stablizing with respect to spindle axis 7 positions.

Axle 7 has locking member above packing ring 13, it is as a whole by Reference numeral 21 expressions.Shown in specific embodiment in, this locking member 21 comprises two tabs 23 that pivot around two axle 23A, the tab substantial horizontal is provided with and is approximately parallel each other.When spindle did not move, tab 23 was in the off-position among Fig. 1.This position is for example to be determined by tab weight, and for this reason, tab can be made suitable shape, and if necessary, does heavylier.Off-position in Fig. 1, tab 23 are included in the inside of cylindrical surface basically, and this surperficial diameter is equivalent to or less than the minimum diameter of the trochoidal surface that is inserted in the sleeve pipe 17 in the bobbin.For this reason, tab 23 can for example be placed in the housing 25 interior (referring to Fig. 4) of setting in the axle 7 with the form in respective flat zone.

Do not move or during with low speed rotation, tab 23 can not interfered bobbin or core 3 to insert spindles 1 or be removed from spindle 1 at spindle 1, this is because tab is because own wt is positioned to downward orientation.Therefore, bobbin can be inserted on the axle 7 of spindle 1, and shift out with spool or the bobbin of the yarn B (Fig. 3) that forms around bobbin 3 from it subsequently, and tab 23 can not hinder these operations, and does not need the operator to carry out any operation in order to make locking member 21 be in off position yet.

Vice versa, and when spindle 1 rotated (this also can be the lower speed of normal running velocity basically) with suitable speed, tab 23 was tending towards opening, thereby be in the position of representing among Fig. 4 of centnifugal force formation.As a result, in the process of coiling yarn, the obstruction that tab 23 formation bobbins or core 3 are axially removed.This will stop bobbin 3 and the bobbin that forms on every side owing to for example impose on the accident that the vibration of packing yarn and bobbin 3 causes and remove by any other external cause of dynamicunbalance conditioned disjunction.

Locking member 21 since the rotation of spindle can be simply, automatically activated.Therefore, the operator need not do any operation in order to activate locking member yet.

Should be appreciated that accompanying drawing only represents the nonrestrictive specific embodiment of the present invention, in the scope of groundwork of the present invention, it forms and mounting means can change.Figure notation any in claims only is an easy-to-read, is convenient to the explanation in conjunction with fwd specification sheets and respective drawings, to claim scope required for protection without any restriction.

Claims

1. the spindle of a coiling yarn on bobbin, it is characterized in that, it comprises the axial locking member near the bobbin of an end, and described locking member is because the off-position that the rotation of spindle can be in the control position of axial locking of pipe and spindle when not moving.

2. spindle as claimed in claim 1 is characterized in that, described axial locking member activates by centnifugal force.

3. spindle as claimed in claim 1 or 2 is characterized in that, described axial locking member at described off-position by elastic compression.

4. as claim 1 or 2 or 3 described spindles, it is characterized in that described axial locking member compresses by gravity at off-position.

5. the described spindle of one or more as described above claims is characterized in that described axial locking member is included in the radial expansion element that described spindle end links.

6. the described spindle of one or more as described above claims, it is characterized in that, described axial locking member comprises around the tab of basic horizontal axle swing, this tab does not move or is in retracted position during with the rotation of limited cireular frequency when spindle, and is in extended position when spindle rotates with the speed higher than minimum cireular frequency.

7. the described spindle of one or more as described above claims is characterized in that, what described axial locking member was included in that the spindle rotation time is applied to that the centnifugal force of tab forms extends radially and by the tab of elastic element withdrawal with respect to spindle.

8. the described spindle of one or more as described above claims is characterized in that, described spindle comprises packing ring in the position that is in axial retraction with respect to described axial locking member, and described packing ring and bobbin in-to-in radially limiting surface match.

9. spindle as claimed in claim 8 is characterized in that, described packing ring comprises elastic expansion part radially.