CN1187168A

CN1187168A - Coreless adhesive tape winding mandrel and winding method

Info

Publication number: CN1187168A
Application number: CN96194548A
Authority: CN
Inventors: 哈维·D·奥格伦; 杰弗里·N·杰克逊; 迪伊·林恩·约翰逊
Original assignee: Minnesota Mining and Manufacturing Co
Current assignee: 3M Co
Priority date: 1995-06-07
Filing date: 1996-05-29
Publication date: 1998-07-08
Anticipated expiration: 2016-05-29
Also published as: WO1996040578A1; DE69612493D1; KR19990022223A; DE69612493T2; EP0830304A1; CA2221182A1; JPH11506717A; CN1071697C; EP0830304B1

Abstract

A method and apparatus (20) for forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly (55) having a specific circumferential tape supporting segment (234) thereon for winding tape. The circumferential tape supporting segments (234) has a tape engaging surface portion (246) that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel (55) to form a tape roll (15), and that is sufficiently pliant to permit ready axial removal of a wound tape roll (15) from the mandrel (55). The innermost wrap (72) of pressure sensitive adhesive tape about the mandrel (55) is masked by an adhesive liner (73). That liner (73) is formed from one portion of a liner/tab strip (123) which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab (76) forms an end tab on the outermost end (75) of the previously formed coreless tape roll (15). The circumferential tape supporting segment (234) of the mandrel (55) is supported on a rotatable shaft (210) and its surface portion (246) may be defined by a plurality of pliant stems (248) extending generally outwardly from the shaft (210) at approximately equal height. The circumferential tape supporting segment (234) may further include a tubular section of material (244) bearing the tape engaging surface portion (246), which may be rotatable about the shaft (210).

Description

The winding mandrels of coreless adhesive tape and method for winding

Background of invention

The present invention is related to the method and apparatus that forms pressure sensing adhesive band coreless roll.

Have many known method and apparatus for the reel or the reel that form each band web materials.The band width of cloth usually is to supply in enormous quantities with the form of volume, then their debatchings, vertically cut, and is wound into one by one band with web materials on the cardboard core of a plurality of alignment in advance and plastic core.For the pressure sensing adhesive band, for example general fuse is formed by paper, cardboard or plastics.Owing to will provide the adhesive tape of different in width with it, so also need the different fuse of a large amount of width.In the tape roll manufacturing process, the coiling adhesive tape need be operated (for example cored) to additional material on a fuse.In addition, in the tape roll manufacturing process, must make during coiling fuse with the band web materials the band that advances between align.In winding process, do not line up and can make adhesive tape uneven, or the axial offset of fuse gluing tape wrapping (" departing from fuse " reels), this two aspect all can cause product aesthetic property difference and use inconvenience.

Use fuse to propose additional material stock table and storage request, and cause the extra domestic shipping weight and the volume of tape roll product.In addition, the cost of fuse itself especially for short tape roll, has occupied sizable part of cost of product.And, when the adhesive tape on the fuse uses up, also can cause waste and environmental problem to the processing of described fuse.In order to carry out salvaging reusing or remanufacturing, even but described fuse is to be made by a kind of material or composite material of recycling, but its use still needs the user to its otherwise processed.Be in for a long time (for example, variable humidity and temperature) under some condition, dissimilar core and the irregularity of being rolled up between the rubber belt material will make all tape rolls deform, and such as ripple or protuberance, from aesthstic angle, these phenomenons are not desirable.

Along with the development of the method that rolls these reels, developed the coreless rolls of pressure sensitive adhesive tape.In people's such as Hall U.S. Patent No. 3,770,542 and 3,899, disclosed a kind of like this method in 075.One axle radially extensible and that shrink is used to pressure sensitive adhesive tape wound thereon.Stay a bit of adhesive agent that exposes by front end place, and begin tape roll on this axle at adhesive tape.Next section adhesive agent on the described adhesive tape is covered by a backing sheet, for the remainder of the innermost layer that is wound on the adhesive tape on the described axle, described backing sheet with a non-adhesive side towards axle.The tape roll of Len req is being gone up and after forming a tape roll, cut described adhesive tape around this axle (being in its deployed condition), reeling promptly stops, and axle is made radial shrinkage.Relative counter-rotating between described axle and the described adhesive tape is gone back to the leading edge portion of a bit of viscosity on the described backing sheet, thereby can not stay any exposed adhesive agent on the tape roll innermost layer.Though this method can make the coreless rolls of a pressure sensitive adhesive tape, but, purpose for transposition in the manufacturing process of tape roll, must periodically make the band web materials stop to forward, stop the high-speed production of a coreless rolls product and manufacturing continuously thus by described device.In addition, inviscid for the innermost layer that can make tape roll, also need described tape roll is further processed.As above mentioned, but this method also needs the axle of a circumferentially extending and contraction.A kind of compressed-air controlled, extensile axle are revealed, and certainly, it needs pneumatic connection, and need the axle that a structure is more complicated, price is more expensive.

Brief summary of the invention

The present invention includes the method and the equipment thereof of a plurality of coreless roll pressure sensing adhesive of continuous formation band.Method of the present invention is included in the winding mandrels that first winder station provides one first rotation, the guide edge of the article tape that is advancing of pressure sensitive adhesive tape guide to first axle around and directly against thereon, the adhesive tape continuous reeling on itself and first axle on, to form a coreless rolls that twists in the processing.Coreless rolls in first axle and the processing is sent to second and transmits station, simultaneously one second live spindle is delivered to first winder station, to fit with the adhesive tape that is advancing.Adhesive tape is cut off between first axle and second axle, be wound on the tail edge of the adhesive tape on first axle with formation, tape roll is around on second first axle that transmits on the station then, also wound thereon up to tail edge, on first axle, to form a complete coreless rolls.

For ease of the coreless winding of the adhesive tape on a winding mandrels, in one embodiment, winding mandrels is around an adhesive tape wireline reel, with first direction and the rotation of first speed.One binding roll assembly rotates with one second relative direction.The supporting member of one supporting binding roll assembly with respect to winding mandrels a primary importance of separating with winding mandrels with impel drive bundle between the second place that roll assembly contacts with winding mandrels mobile.When this supporting member during in its second place, the binding roll assembly rotates with one second fast speeds, and a guide edge of the article tape that is advancing partly is wound on the winding mandrels.In preferred embodiment, the guide edge of article tape partly has the wadding that is enough to hide the viscose glue on the adhesive tape innermost layer that will be wound on the winding mandrels at least.In one embodiment, this supporter also has a band feed roller assembly, and when supporting member during in its second place, it rotates with second fast speeds in second direction.

In a preferred embodiment of winding mandrels, it comprises that one has the cylinder axis of rotation axis, and at least a portion of this cylinder axis has the adhesive tape supporting section on circumference that is used for holding adhesive tape wound thereon.Adhesive tape supporting section on this circumference has the surface portion of applying adhesive tape, this surface portion is radially compressible, when the adhesive tape continuous reeling on described axle when forming a tape roll this surface portion have enough rigidity to remove to support adhesive tape again, also have enough compliances that the tape roll of winding is axially taken off from described axle.

In another embodiment, the method that forms the coreless rolls of a plurality of pressure sensitive adhesive tapes continuously comprises that longitudinal feed has the band width of cloth of first and second first type surfaces, contains pressure sensing adhesive on one of them surface.One wadding/paster is applied on the whole transverse width that contains the viscose glue surface of the band width of cloth that is advancing.Then the forward (FWD) width of cloth before is wound on the axle part to form a tape roll, thus, the innermost layer of the band width of cloth of each tape roll comprises that its size is enough to hide the wadding/paster of the viscose glue on the innermost layer.Method of the present invention preferably also comprises the side direction cutting wadding/paster and the band width of cloth, form two parts, the first of wadding/paster constitutes the above-mentioned size of a volume tape roll, the covering part of the viscose glue on the band width of cloth outermost end portion of the tape roll of the previous winding of second portion formation covering of wadding/paster.

Brief Description Of Drawings

Below in conjunction with accompanying drawing the present invention is further described, in each accompanying drawing, every identical structure is represented by identical label.

Fig. 1 is the scheme drawing of a tape roll wind2 of the present invention.

Fig. 2 is the block diagram that utilizes a complete tape roll of tape roll wind2 of the present invention and method formation.

Fig. 3 is that the 3-3 line cuts open the planar view of getting in Fig. 1.

Fig. 4 a and Fig. 4 b cut open the lateral plan of getting along Fig. 3 center line 4-4, have wherein removed some parts, have cut some parts open.

Fig. 5 a and Fig. 5 b cut open the cutaway view of getting along Fig. 3 center line 5-5, and for clarity, some parts only illustrate in the mode of scheme drawing.

Fig. 6 is the scheme drawing of the adhesive tape winding part of tape roll wind2 of the present invention, and it shows the situation that is provided with of each member of the adhesive tape that is used for reeling.

Fig. 7 is the view of a winding mandrels of the present invention, wherein laterally disconnects, and some part demonstrates in the cross section mode.

Fig. 8 is the block diagram of an end of winding mandrels shown in Figure 7.

Fig. 9 cuts open the cutaway view of getting along Fig. 7 center line 9-9.

Figure 10 cuts open the cutaway view of getting along Fig. 7 center line 10-10.

Figure 11 is the amplification sectional view of enclosure part among Figure 10, and it shows the compressibility of winding mandrels material, and tape roll is on described winding mandrels material in method and apparatus of the present invention.

Figure 12 is the enlarged drawing of the described enclosure part of Fig. 7, and it shows wound tape and can axially disassemble from described winding mandrels.

Figure 13 is the scheme drawing of the adhesive tape winding part of tape roll wind2 of the present invention, and it shows in article tape that cut-out the is advanced situation that is provided with each member before forming coreless rolls.

Figure 14 a-Figure 141 is respectively the scheme drawing that part is analysed and observe, part is faced of parcel assembly, and in apparatus and method of the present invention, described parcel assembly is used for cutting off the article tape that advances and begins to be wound on the winding mandrels.

Figure 15 cuts open the semi-sictional view view of getting along Figure 14 a center line 15-15.

Though all features of above all accompanying drawings have formed a preferred embodiment,, as being mentioned in this argumentation, the present invention can also have other embodiment.Of the present invention all embodiment that the disclosure disclosed only are illustrative, rather than restrictive.Such skilled person in present technique field can also make various other improvement and embodiment within protection scope of the present invention and principle spirit to the present invention.Amplified some part in all accompanying drawings for clarity, therefore all accompanying drawings be not come in proportion graphic.

The specific descriptions of preferred embodiment

Foreword and general introduction

Fig. 1 shows a device that is used for implementing tape roll manufacture method of the present invention.In essence, described method comprises relative broad of starting and long pressure sensitive adhesive tape reel, and it is processed into a plurality of narrower and short pressure sensitive adhesive tape volumes.Figure 2 illustrates a kind of so little roll coil of strip, as the roll coil of strip 15.

In Fig. 1, schematically show one and be used for forming the roll coil of strip wind2 20 that coreless adhesive tape is rolled up.Described method is in a reel unwinding station 22 beginnings, at this place, the supply volume 25 of one pressure sensitive adhesive sheet or band web materials 26 is aligned the position, so that will deliver to a transfer path that is used to web materials 26 with web materials 26 by stick volume wind2 20.As shown in the figure, supply volume 25 is the form of big volume.For all purposes of the present disclosure, the meaning of term " sheet material " and " the band width of cloth " is equal to.Term " length " and " vertically " are meant the yardstick that moves along the transfer path direction of band web materials 26, and term " width " and " side direction " are meant and with the rectangular yardstick of web materials 26 transfer paths.The direction of described band width of cloth transfer path is perpendicular to the axis of other working roll among supply volume 25 and Fig. 1.

Band web materials 26 can be made by any suitable material, such as paper, plastics, long filament band, non-woven fabric material or paper tinsel, and has first and second first type surfaces.One pressure sensitive gluing (being clamminess) layer 27 is pressed on one of them first type surface, and another first type surface has anti-adhesion characteristic (for example, it does not have viscosity, or be not clamminess).Be typically, supply volume 25 its viscose glue sides of the band web materials of being reeled are axis of rolling up towards supply inwardly, and are with the non-viscose glue side of web materials to face outer.

With regard to processing, band web materials 26 is from 25 unwindings of supply volume, and on the stripper roll 28 process, described stripper roll can be towards moving with axis direction away from supply volume 25, can keep itself and supply to roll up circumference of 25 when supplying with the volume unwinding with box lunch and contact.Therefore, the non-viscose glue surface of band web materials 26 is gone up pull from stripper roll 28 (it is an idler roller) and is passed through, and process from the

deflector roll

29,30 and 31 of location subsequently, so that 26 alignment of band web materials, so that apply ointment or plaster wadding/paster.As can see from Figure 1, the tacky surfaces of band web materials 26 is pulled bypass idler roller 30 and 31 (those rollers all are the rollers that is coated with abherent).In another embodiment, wherein one or more that are disclosed " are led " roller and can be driven, and helping unwinding band web materials 26, and by tape roll wind2 20 the band web materials are forwarded.

Then, the non-sticky surface tractive that makes the band web materials 26 that is forwarding is positioned at one wadding/paster stand supporting idler roller 32 of 35 of worker of applying ointment or plaster through one.Stand in 35 wadding/paster worker that applies ointment or plaster, drive one wadding/patch applicator 37 selectively one wadding/paster laterally applied ointment or plaster on the band web materials 26 that is just forwarding and to cross described band web materials.Wadding/paster is used for covering some the selected part that is positioned at the adhesive layer 27 on the band web materials 26.Band web materials 26 is stood and 35 is begun to forward to splicing worker station (a splicing station) 39 from wadding/paster worker that applies ointment or plaster, and at this worker station, a splicing station 40 is installed pivotally so that a surface to be provided, so as with hand will order band web materials volume be stitched together.Perhaps, can provide online or " unsettled splicing (flying splice) " mechanism to couple together with band web materials volume that will order.

When the band web materials when transfer path moves on, the non-sticky surface of band web materials 26 process from the deflector roll 42 of location, and stand 43 by a featherer.Each lateral edges of the band web materials 26 that is just forwarding (with the wadding/paster on it) is all cut edge will be with web materials 26 to be limited to an accurate width, so that further process.Stand 43 from described featherer, along each side of the band web materials 26 that is just forwarding be trimmed the band web materials 43a that gets off directly guiding be directed to a collecting mechanism 43b then through an idler roller 44.In the tape roll winding apparatus commonly used, described collecting mechanism 43b can comprise a horizontal coil catcher (levelwind collector), is used for collecting the material that those are cut edge and from each side of the band web materials 26 that forwarding.

Band web materials 26 continues to forward through idler roller 44, passes through

idler roller

45,46 subsequently.The non-sticky surface of band web materials 26 contacts with idler roller 45, and the tacky surfaces of band web materials 26 contacts with

idler roller

44 and 46, and described

idler roller

44 and 46 all is the idler roller that is coated with abherent.Adhesive side with web materials 26 contacts with main drive roller 47 (this roller also is the roller that is coated with abherent) then.Main drive roller 47 can provide main tractive force or pulling force, so that band web materials 26 forwards by roll coil of strip wind2 20 from supplying with volume 25.

Band web materials 26 continues to be sent to the anvil roller (anvilroller) 48 (its non-adhesive side is towards roller 48) of a passive trough of belt from main drive roller 47, and slitter operator thereon stands 49.Band web materials 26 subsequently a plurality of laterally disposed and separate each other, with the effect of the anvil roller 48 coefficient cutter of trough of belt under rip cutting become rectangular, thereby form many longitudinal extensions, by the article tape 50,51 (referring to Fig. 1) of being with web materials.The

article tape

50,51 of lateral spacing is guided to one first gluing tape wrapping worker, the 52 or 1 second time tape roll of standing respectively and is stood 53 around the worker.

At each coiling worker station, the article tape that is forwarding is wound on the winding mandrels.Therefore, on same winding mandrels, can form many tape rolls simultaneously.Stand in 52 last coiling worker, the initial coiling that is positioned at the innermost layer of each article tape 50 on the winding mandrels 55 is by cutting off and winding assembly (cut-off and wind assembly) and become more convenient of having on one belt hold roller and knife assembly 57 (upper lay-on roller and knife assembly) on the parcel assembly 56 and.Equally, the stand initial coiling of the innermost layer that is wound on each article tape 51 around the winding mandrels 60 in 53 of following coiling worker is to wrap up assembly 61 and a cut-out of belt hold roller and knife assembly 62 once and winding assembly and become more convenient by having.The place all is equipped with parcel and knife assembly at each coiling worker station, so that selectively towards pivoting with direction away from its winding mandrels separately.Winding mandrels 55 its two ends be installed in a rotation in turntable (turret) assembly 65.Last turntable assembly 65 has mutual opposed chuck, and it advances to the coiling worker and stands and can be meshed with each end of winding mandrels 55 in 52 o'clock with box lunch, and rotatably drives winding mandrels 55.Around last turntable assembly 65, be limited with five positions or worker station, in the manufacturing process of tape roll, described winding mandrels 55 will circulate through these five positions, and they comprise a winding mandrels loading position A, ready position B, winding position C (go up the coiling worker and stand 52), delivering position D and unloading position E.Equally, once turntable assembly 70 is provided with mutual opposed chuck, is used for standing and being meshed with each end of second winding mandrels 60 53 the time and rotatably driving winding mandrels 60 when it advances to down the coiling worker.Following turntable assembly 70 also has five position or workers that move through for winding mandrels 60 stands, and they comprise a winding mandrels loading position A, ready position B, winding position C (following coiling worker stands 53), delivering position D and unloading position E.

Simultaneously many article tapes are being wound on their winding mandrels separately and after becoming the tape roll of a Len req, each article tape just is cut off, and finished the winding work of all tape rolls that on a winding mandrels, carry out, simultaneously in each coiling worker station, one group of new tape roll begins again to be wound on the new winding mandrels.When being advanced facing to the winding mandrels in its coiling worker station, all parcels and knife assembly finish cut-out work.Then, each winding mandrels that is carrying all tape rolls of winding is fully disassembled from its turntable assembly separately, and all tape rolls on it are taken off from described winding mandrels.

As described below, the invention provides does not a kind ofly need to use each independent tape roll fuse just can form those tape rolls, unique apparatus and method.All tape rolls directly are wound on all winding mandrels.For this reason, has an adhesive tape coating surface through alignment with each circumferential section of the winding mandrels of accepting an article tape that is just forwarding, described coating surface is compressible one in the radial direction, but still have enough rigidity, with box lunch described adhesive tape is wound on around the described winding mandrels continuously and can supports described adhesive tape when forming a tape roll.Each circumferential section also can rotate separately around the axis of winding mandrels, and this rotation can be controlled by a clutch mechanism.In addition, the winding work of all coreless rolls can strengthen with utilizing at wadding/paster a part of wadding/paster that station is applied on the described band web materials of applying ointment or plaster.To form the innermost layer of each tape roll, the adhesive tape mating surfaces from the circumferential section of winding mandrels is covered the adhesive agent of the described band web materials that stays in its innermost layer to described that part of wadding/paster thus through alignment.Described adhesive tape coating surface has enough flexibilities, thereby can easily completed all tape rolls axially be disassembled from described winding mandrels.

Figure 2 illustrates the coreless rolls of a pressure sensitive adhesive tape 15 that forms with method of the present invention.This tape roll 15 is to be formed by an article tape being with web materials 26, and the width of described article tape obtains at rip cutting station 49 places limiting.Tape roll 15 is without any independent fuse.From its front end or inner edge 71, on its viscosity (interior) side, the innermost layer 72 of article tape by one wadding/paster apply ointment or plaster station 35 places be applied to the band web materials 26, cover to form wadding/paster wadding 73, that have certain-length that is used for tape roll 15.At its tail end or outer most edge 74 places, the adhesive tape paster part 75 of article tape is limited so that its sticky agent is covered.Adhesive agent be by one paster apply ointment or plaster station 35 places be applied to the band web materials 26 part wadding/paster 76 and cover.The remainder of this wadding/paster is formed on the wadding of formed back one tape roll in the tape roll wind2 20.Equally, the part wadding/paster that can limit the wadding 73 of tape roll 15 partly is formed on paster near the leading edge of tape roll of the last winding in the tape roll wind2 20.Described wadding/paster is preferably in witness marking 77 is set on its one or both sides, and (on adhesive tape paster part 75 and innermost layer 72) just can see described mark 77 in case there is a tape roll that has completed 15 to form.

Method for winding and device to coreless adhesive tape volume of the present invention specifically describes below.Should also be noted in that the present invention can also have other pattern and specification, some of them be should give and paid special attention to.For example, tape roll wind2 20 shown in Figure 1 normally makes its mucilage glue surface forward band web materials 26 up.Should be understood that, that in some application scenarios people wish to align and are with web materials 26, thereby for major part band web materials, its surface with adhesive agent is normally ventricumbent.The orientation of this announcement is not restrictive, and only is illustrative.Various other of apparatus of the present invention and method improves and embodiment will drop within protection scope of the present invention and the principle spirit, and can be made by those skilled persons in present technique field.

Wadding/patch applicator

Fig. 3-Fig. 5 more specifically shows described wadding/paster station 35.As shown in Figure 3, a supply volume 80 of wadding/paster material is rotatably installed on the main shaft 81, is adjacent to a lateral margin of the transfer path of band web materials.In Fig. 4 a and Fig. 4 b, will supply volume 80 and disassemble, with other member of explanation wadding/patch applicator 37 from main shaft 81.

In Fig. 3, can see that

deflector roll

31 and 32 can be rotated to support on their place, end (for clarity, band web materials 26 not being shown in Fig. 3) with frame plate 82,84.Main shaft 81 can be rotated to support on one and extends laterally on the Main subrack hack lever 86 on the band web materials transfer path.Main subrack hack lever 86 has the supporting member 87 of a pair of downward extension (see Fig. 3 and Fig. 5 a), this supporting member is rotatably installed along a shared side direction pivot axis 88 with respect to all frame plates 82 and 84 being adjacent to its lateral end place.Other working component of wadding/patch applicator 37 is also supported by described Main subrack hack lever 86.Shown in Fig. 4 a and Fig. 4 b, a power-absorption fan 89 is installed on the main shaft 81 so that rotational resistance to be provided, and rolls up 80 fly starts and when stopping with the box lunch supply, the lax foreign volume that can prevent wadding/paster material 90 around.In addition, side direction reel dividing plate or panel (not shown) can also be set so that wadding/paster material 90 keeps suitably alignment on supply volume 80.

Supply volume 80 is supplied to a feeder assembly 92, a cutting assembly 94 and a belt feeder assembly 96 with wadding/paster material 90.Wadding/paster material 90 comes out from supply volume 80 tractives, and under the effect of feeder assembly 92 with respect to the transfer path side direction ground feeding of band web materials 26 (towards its pressure-sensitive adhesive face).Feeder assembly 92 comprises that rubber-coated driven roll 98 and steel support deflector roll 100, and described two rollers all can be rotated to support on the roller supporting member 102 that is installed on the Main subrack hack lever 86.One driving motor 104 passes through a gear case 106 (referring to Fig. 3, Fig. 4 a and Fig. 4 b) and drive sprocket 108.Chain 110 and sprocket wheel 108 engagements, and subsequently power is passed to power-transfer clutch 113 and with the axle 114 joining sprocket wheels 112 of live roll 98.Therefore, the driving action of electrical motor 104 makes live roll 98 (when power-transfer clutch 113 is in engagement) wadding/paster material 90 can be forwarded and rolling a little between the process roller 98 and 100, and with wadding/paster material 90 feeding laterally and by cutting work station 94, and in the feeding people belt feeder assembly 96.

Cutting assembly 94 has one wadding/paster cutting knife 116, cutter driver 118 and cutting supporting station 120, and all these is bearing on the Main subrack hack lever 86 with cutter support 122 (referring to Fig. 3).Usually, wadding/paster cutting knife 116 is in the withdrawing state or leaves enough spaces above cutting knife supporting station 120, thereby can make wadding/paster material 90 from passing through therebetween.In case drive cutter driver 118, thereby wadding/paster cutting knife 116 is driven promptly and is passed down through the wadding/paster material 90 that is supported for cutting by cutting supporting station 120.Cutting supporting station 120 has a groove, and described groove is positioned at wadding/paster cutting knife 116 belows and alignment with it, thereby can spread all over the transfer path of cutter 116, and can guarantee wadding/paster material 90 is carried out fully, cuts completely.Therefore, cutting assembly 94 wadding/paster material 90 can be cut into discontinuous, be used for putting on all waddings/paster segmentation 123 on the band web materials 26.

Belt feeder assembly 96 comprises the

endless apron

124 and 126 of two horizontal expansions, and through aliging to have an axial side direction load-transfer device transport path, wherein load-transfer device 124 all has the outside face that contacts and face with each other with 126.On with 124 two ends by leather belt roller 128 and 130 supportings.Down with 126 two ends by leather belt roller 132 and 134 supportings.The inside face of each tape loop all has groove along its length direction, and the circumferential surface of all leather belt rollers has the groove and the convex ridge of coupling, thereby can guarantee the suitably alignment all the time of all tape loops in operation process.Belt feeder assembly 94 also is to be driven by electrical motor 104.Power provides to a sprocket wheel 136 with gear case 106, and is passed to sprocket wheel 140 by chain 138 subsequently.Sprocket wheel 140 links with leather belt roller 132 again so that leather belt roller 132 rotates, and drive installation load-transfer device 126 thereon.Therefore, along two the band continuous outside faces and with contact with 126 be with 124 also to be driven.

Be used for the leather belt roller 132 and the 134 rotatable plank frames 142 (referring to Fig. 5 a and Fig. 5 b) that are bearing in down of tape loop 126 down, described plank frame 142 down is installed in again on the carriage 144 that is fixed in Main subrack hack lever 86.The leather belt roller 128 and 130 that is used for cocycle band 124 can be rotated to support on plank frame 146, the described plank frame of going up is pivotably mounted on again on a plurality of upright component lug therein 150, as at side direction pivot axis 148 places, upright component lug therein is fixed on the carriage 144 again.Therefore, all tape loops and their supporting structure are all supported by Main subrack hack lever 86, and when center frame bars 86 pivoted around its side direction pivotal axis 88, belt feeding assembly 96 was just with its motion.

Shown in Fig. 5 a,

tape loop

124 and 126 with they outside face 152,154 mutually in the face of and be in alignment with each other.When preparing to be applied to wadding/paster material 90 on the band web materials 26, these surfaces all are suitable for being entrained in therebetween with 90 engagements of wadding/paster material and with wadding/paster material 90.Upper and

lower plank frame

146 and 142 also has the

surface

158 and 160 that faces with each other, and described two surfaces are through aliging so that wadding/paster segmentation 123 is remained on therebetween.Separate enough distances between upper and

lower plank frame

146 and 142 the surface that faces with each other 158 and 160, to be provided for the passage of wadding/paster material 90 betwixt.Shown in Fig. 5 a and 5b, upper and

lower plank frame

146 and 142 opposed

face

158 and 160 all are provided with groove to hold load-

transfer device

124 and 126, for example at

groove

166 and 167 places.Upper and

lower plank frame

146 and 142 extends laterally the transfer path by the band web materials 26 that is just forwarding, and extend to one at least the supporting idler roller 32 width range in width.Upper and

lower plank frame

146 and 142 designs to such an extent that can separate.Last plank frame 146 can be around pivot axis 148 and pivoting, and can and open in 154 minutes the outside face that faces with each other 152 of

tape loop

124 and 126 thus.A plurality of laterally disposed spring members 169 last, between upper and

lower plank frame

146 and 142 so that in carrying out this separation process, the weight of plank frame 146 on the balance.

All pinch rollers 170 can be rotated to support on a plurality of lugs 172 that are installed on plank frame 146.Therefore, all pinch rollers 170 are installed to such an extent that also can pivot with respect to the Main subrack hack lever around pivotal axis 148.All pinch rollers 170 are axially aligned, the transfer path of side direction by the band web materials 26 that just forwarding, and design to such an extent that roll a little with supporting deflector roll 32 one of formation, all waddings/paster segmentation 123 is covered (referring to Fig. 5 b) on the band web materials 26 that is just forwarding.

As above mentioned, Main subrack hack lever 86 and all members mounted thereto can both also pivot around pivot axis 88 with respect to frame plate 82 and 84.This pivoting action (shown in arrow 174) utilizes one or three two-way cylinders 176 and realizes that the cylinder part 178 of described air cylinder is installed on the frame plate 84 with the appropriate device such as analog bracket 180.An extensible piston rod 182 its outer ends (for example pivotal axis 183 places) of described cylinder 176 link to each other pivotly with a support arm structure 184, and described support arm structure is installed on a supporting member of all supporting members 87 that are used for Main subrack hack lever 86 again.Therefore, piston rod 182 makes that with respect to the linear extension of cylinder part 178 all members of Main subrack hack lever 86 and supporting thus can be around pivot axis 88 pivots (make clickwise in Fig. 4 a and Fig. 4 b, and make left-hand revolution in Fig. 5 a and Fig. 5 b).When piston rod 182 was positioned at its farthest extended position (not shown), wadding/patch applicator 37 was left band width of cloth path with pivot, is with on the width of cloth path thereby will be with web materials to be aligned in.

In running condition, in the process that forwards along its transfer path of band web materials 26, the station 35 one wadding/paster segmentation 123 of applying ointment or plaster of applying ointment or plaster of wadding/paster.Each wadding/paster segmentation 123 all is aligned, so that side direction is placed on the band web materials 26 in the following manner.Live roll 98 and leather belt roller 132 are rotated under the driving action of electrical motor 104.Therefore, feeding assembly 92 comes out wadding/paster material 90 from supply volume 80 tractives, and process cutting assembly 94 also enters in the belt feeding assembly 96.The leading edge of wadding/paster segmentation 123 is clamped by the opposite outer 152,154 of upper and

lower tape loop

124 and 126, subsequently wadding/paster segmentation 123 side direction is carried the transfer path by band web materials 26.When the leading edge of wadding/paster segmentation 123 is detected by an optical pickocff 186, cutter driving part 118 just sends signal, the direction of wadding/paster cutting knife 116 to cutting supporting station 120 driven, cut and form the trailing edge of wadding/paster segmentation 123 thus, also constituted a leading edge of the wadding/paster material 90 that forms next wadding/thin slice segmentation simultaneously thus.Meanwhile, power-transfer clutch 113 de-meshs so that live roll 98 stops the rotation, and make the leading edge of wadding/paster material 90 stop to forward at cutting assembly 94 places thus.Belt feeding assembly 96 works on, and continues wadding/paster segmentation 123 is laterally forwarded, till its leading edge is detected by one second optical pickocff 188.In case described leading edge is detected by sensor 188, electrical motor 104 just stops to drive, so that belt feeder assembly 96 feed-

disablings.Tape loop

124 and 126 keeps wadding/paster segmentation 123 suitably in the position, it is applied ointment or plaster on the pressure sensitive gluing surface of the band web materials 26 that is just forwarding.

Carry out when wadding/patch applicator 37 is in a preparation or run location the formation of one wadding/paster segmentation 123 and location, shown in Fig. 4 a and Fig. 5 a.In this position, the piston rod 182 of cylinder 176 extends, pivot so that Main subrack hack lever 86 and all members on it center on pivotal axis 88, thereby be enough to make wadding/paster segmentation 123 and the band web materials 26 that is just forwarding to separate a bit of distance, shown in Fig. 5 a.But a front side portion 190 of wadding/paster segmentation 123 but is exposed to the below of pinch roller 170, and through alignment, so that fit with the gluing surface 27 of the band web materials 26 that is just forwarding.This applying is to be driven when cylinder 176, and its piston rod 182 of withdrawing, and Main subrack hack lever 86 and all members on it are pivoted is so that wadding/patch applicator 37 takes place when moving to just like the applied position shown in Fig. 4 b and Fig. 5 b.In this position, the front side portion 190 of wadding/paster segmentation 123 fits with band web materials 26, and bonding thereon.When band web materials 26 was drawn out wadding/patch applicator 37, all pinch rollers 170 were compressing band web materials 26 and facing to the band web materials and rotate wadding/paster segmentation 123.Between supporting idler roller 32 and pinch roller 170 slight interference is arranged, it can be regulated by doing to pivot around the pivot axis 148 of last plank frame 146 and away from following plank frame 142.As above mentioned, this motion of last plank frame 146 and support are to be promoted by all springs 169 between upper and lower plank frame 146 and 142.This discharges wadding/paster segmentation 123, so that it is separated with wadding/patch applicator 37 thus also with the opposite outer 152 of

tape loop

124 and 126 with came in 154 minutes.

Second sensor 188 detect do not have wadding/paster material between

tape loop

124 and 126 after, cylinder 176 just is driven, with extend piston bar 182, and make Main subrack hack lever 86 and all members on it turn back to preparation or run location shown in Fig. 4 a and Fig. 5 a.But only according to the testing result that does not have wadding/paster material, cylinder 176 can not be actuated to extend piston bar 182.The driving action of cylinder 176 is also decided on the finishing of predetermined time delay in the circuit of withdrawal piston rod 182 usefulness, thereby begins wadding/paster segmentation 123 is applied ointment or plaster on the band web materials 26 that is just forwarding.After the signal of time delay and " not having the wadding paster material " sends from second sensor 188, electrical motor 104 also is driven, and power-transfer clutch 113 engagement, with begin for next wadding/paster split fix in position it laterally is applied to each required on the band web materials 26 that is just forwarding step.

Therefore, wadding patch applicator 37 of the present invention provides a kind of supply and the transfer approach that can effectively a cloak be applied ointment or plaster on a gluing surface of a band width of cloth that moves.About this point, though the present invention describe with the formation of centreless pressure sensitive adhesive tape volume,, wadding of the present invention/paster plaster application method can also be used to being formed with the tape roll of core.

Band width of cloth slitting station

In the operational process of tape roll wind2 20, the band web materials 26 that is stained with wadding/paster segmentation 123 on it is sent to first side slitting station 43 from wadding/patch applicator 35.At the described first slitting station 43 places, a pair of be close to the edge strip that cutting knife that the band web materials that just forwarding 26 is provided with downcuts band web materials 26 (with and on wadding/paster segmentation 123), cut to an accurate width, so that further process will be with web materials 26.As above mentioned, collected by a suitable collecting mechanism 43b from band web materials 26 material of cutting edge.When band web materials 26 process main drive rollers 47, its traveling process is followed the tracks of by a length decoder 202 that is connected in main drive roller 47.Therefore, described length decoder 202 can provide the data of the length that relevant band web materials 26 forwarded along its transfer path.

The band web materials advances to anvil roller 48 from main drive roller 47, and many peripheral groove of extending abreast along its width are arranged on the anvil roller.This main drive roller 47 and anvil roller 48 be all by a public driving motor (not shown) transmission, just as common use in such band rip cutting and coiling machine.Drive main drive roller 47 to limit the linear velocity of load-transfer device web materials, drive anvil roller 48 simultaneously, express train is a bit slightly than main drive roller 47 to make it.

And on anvil roller 48, band web materials 26 is transmitted the described slitting station 49 of working through with the anvil roller 48 that has groove.Described slitting station 49 comprises a plurality of across crossing the cutting knife 203 that laterally is provided with web materials 26 transfer path width.Every the peripheral groove on the anvil roller 48 of extending into of cutting knife 203 parts.Therefore, when band web materials 26 forwarded through slitting station 49, each cutting knife 203 cut into many article tapes 50 and 51 (Fig. 6) with described band web materials end wise.Lateral spacing between adjacent cutting knife 203 just defines the width of all article tapes that cut, and the interval between all cutting knifes 203 preferably equates.

Because all

article tape

50,51 is subjected to slitting at slitting station 49, therefore also be subjected to slitting when crossing wadding/paster segmentation 123 through all cutting knifes 203 with web materials 26 when extending laterally.Therefore, just form one wadding/paster bar 204 (adhering on each article tape 50), and formed one wadding/paster bar 205 (adhering on each article tape 51) (referring to Figure 13).Then, all

article tapes

50 and 51 begin to be led to upper and

lower turntable assembly

65 and 70 from anvil roller 48.Perhaps all article tapes are directed to other and plant the turntable assembly, as what in an adhesive tape slitting machine, use always.

The coiling of coreless rolls

1. turntable assembly

From described anvil roller 48, all article tapes 50 are directed to described first winder station of going up in the turntable assembly 65 52.As shown in Figure 6, in described first winder station 52, a winding mandrels 55a is rotatably driven, and all article tape 50 is wound thereon.Equally, from described anvil roller 48, to all article tape 51 channeling conducts, to be wound on the winding mandrels 60a, second winder station 53 of this winding mandrels in following turntable assembly 70 is rotatably driven.Therefore, all

article tapes

50 and 51 are side by side to be wound on the winding mandrels turntable assembly, rotation separately that is positioned at separately, to form all tape rolls 15 thereon.

All turntable assemblies are radial type turntable assembly preferably, and its pattern is comparatively common in the pressure sensitive adhesive tape process industry.A kind of suitable radial type turntable assembly is the Kampf RSA-450 turntable that the Jagenburg GmbH of Germany makes.In radial type turntable assembly disclosed herein, each turntable assembly comprises a pair of

turntable head

64 and 69 that separates each other (only showing one of them turntable head in the accompanying drawing of each turntable assembly), winding

mandrels

55 and 60 supports and is installed in this between the turntable head, so that each spinning.All turntable assemblies generally include and are used for guiding the actuator (not shown) of all turntable heads, just make all turntable head rotations, so that all winding mandrels transmit between all diverse locations around each turntable assembly.Each turntable assembly has two pairs or more winding mandrels chuck, and each can independently mesh chuck, and can drive a winding mandrels individually rotatably.What it is also conceivable that is that the present invention can also use a fixing turntable assembly, as gondola Ghezzi ﹠amp; The RS240 of Annoni SpA.

In order to utilize a winding mandrels, with loading slide plate 206 to its location at its turntable assembly.Illustrating explanation such as those, also considering in the radial type turntable assembly that can use with the present invention, on a turntable assembly each all has an independent driving motor to independent winding mandrels chuck, so that center on the position that all positions of the chuck on the described turntable assembly are changed those chucks individually.A pair of unloaded chuck is meshed with the two ends of winding mandrels at position A place (breaking away from described loading slide plate 206).Then this is forwarded to position B unloaded chuck, make described winding mandrels be in a ready position that is used for reeling adhesive tape.Then, all chucks are further forwarded to position C, so that the engagement and the article tape of reeling thereon.Nearly finish in case reel, be about to this chuck is converted to position D, so that winding mandrels is therebetween finished described winding work.At last, all chucks are forwarded to position E, at this place, all chucks discharge described winding mandrels, make its mat unloading slide unit 208 thus and withdraw from its turntable assembly.Though all relative positions around turntable assembly 65 and 70 winding mandrels station are different, but, their function is identical, all is to move through winding mandrels loading position A, winding mandrels ready position B, winding mandrels winding position C (winder station), winding mandrels delivering position D and winding mandrels unloading position E.All winding mandrels that are positioned at their chucks separately can be driven by a plurality of arrangement of clutch by a driving motor, perhaps drive (these drive actuator and are illustrated) by all driving motor independent, independent control, each all has a driving motor to the winding mandrels chuck.

2. winding mandrels

The unique texture of radial dimension compensation (caliper compensation) winding mandrels of the present invention has been shown in Fig. 7-Figure 12.For example, a winding mandrels 55 has the cylindrical center axle 210 of a strap end portion 212 and 214.At least one end (for example the end 212) has chuck engagement end 216, and it is to be used for and one to have the groove of a similar shape on it or the chuck 218 of mating part 220 is complementary.That described end 216 can be cut into is square (for example as shown in Fig. 8), perhaps can have other rotational structure, the bullet of can the matched shape part on chuck working such as key shape portion or.Near the other end 214 of described cylindrical shaft 210, a chuck 222 also is meshed with described axle 210.All chucks 218 and 222 can move axially and selectively away from described axle 210, describedly go up on the turntable assembly 65 or unload from it thereby it is contained in.But as can see from Figure 7, when being in engagement, all chucks 218 and 222 positively are meshed with described cylindrical shaft 210, thereby can rotate therewith.

One terminal backstop sleeve 224 is fixed thereon near an end of described cylindrical shaft 210.In one embodiment, described terminal backstop sleeve 224 is firmly fixed on the described cylindrical shaft 210 with pin 226, makes axial motion with respect to described axle 210 or rotatablely moves thereby can limit described sleeve.Perhaps, the position of terminal backstop sleeve 224 can change along cylindrical shaft 210.One pressure spring 228 is nested with on axle 210, be positioned at described terminal backstop sleeve 224 near, and be tight against the annular end face 230 of terminal backstop sleeve 224, as shown in Figure 7 and Figure 8.A plurality of spacer tubes that replace 232 and core pipe 234 are along the length alignment of cylindrical shaft 210.One of them spacer tube 232 is positioned near the pressure spring 228, and its annular end face 236 is tight against pressure spring 228.The internal diameter of each pipe 232 is slightly greater than the external diameter of cylindrical shaft 210.As being clear that from Fig. 9, each pipe 232 is arranged in a straight line by a pin 238, and described pin extends through one and is positioned at cylindrical 210 hole 239.Each pipe 232 all has one along its inside face, pin 238 can be held axial groove 240 within it.Therefore, all spacer tubes 232 can be made axial motion with respect to axle 210, have prevented that described spacer tube 232 from rotating with respect to axle 210 but sell 238.

One core pipe 234 is aligned on the axle 210, between each is to adjacent spaces pipe 232, and as can seeing from Fig. 7 and Fig. 8, it is fit to repeated usage, forms coreless rolls thereon.Each core pipe 234 is formed by a cylindrical sleeve 244 (referring to Fig. 7, Figure 10 and Figure 11).Described sleeve 224 preferably by a low friction, durable material makes, such as can be from the E.1 du Pont de Nemours and Company in the Wilmington city of the Delaware State, the DELRIN that Inc. has bought ^TMMaterial.The internal diameter of sleeve 224 is slightly greater than the external diameter of cylindrical shaft 210.Therefore, sleeve 224 can freely move axially and can only be subjected to the restriction of all spacer tubes 232 with respect to axle 210 rotations.

One radially compressible material layer 246 is installed in around the circumference of each sleeve 244.Described material layer 246 is preferably by the SCOTHMATE of buckle ^TMMaterial is made, and described material has the gluing backing of a pressure sensitive, and is made by the 3M company in Minnesota State St.Paul city, and is identification marking with Part No.70-0704-2795-3.As shown in Figure 8, this material is preferably reeled and its viscosity backing of mat and being fixed on the external peripheral surface of sleeve 244 spirally.This SCOTCHMATE ^TMMaterial is can support a basic unit of a plurality of upright stem shape things (stem) 248 or fabric 247 and form by one.Each upright stem shape thing forms as one from the outward extending substantially tiny polymerization filament of winding mandrels 210, and has a hook portion in its outermost end.Though radial oriented all upright stem shape thing 248 do not resemble Fig. 7, Fig. 8 and shown in Figure 12 uniformity, but, all outermost end that can compress all stem shape things 248 of material layer 246 equate substantially with regard to height, and can limit the face area of all core pipe 234 excircles less.All article tapes are just applied ointment or plaster and are wound on this excircle, and when the innermost layer of each article tape during thereon by rolling-in, can compress material layer 246 enough friction force can be provided, thereby in winding process, between all article tapes and all stem shape things 248, has only minimum slip or without any slip.All article tapes are directly applied ointment or plaster to compress on the material layer 246.When method of the present invention has formed all tape rolls, as will further describing hereinafter, preferably be not on all article tapes 50 (51) adhesive agent with can compress material layer 246 and fit, but their wadding/paster bars 204 (or 205) separately with can compress material layer 246 and fit, and be formed in the innermost layer of a tape roll 15 of reeling around it.Therefore, innermost layer 72 has just formed the wadding 73 (referring to Fig. 2) of tape roll 15.

As the above mentioned, all spacer tubes 232 and Zhu Xin pipe 234 is arranged alternately on cylindrical center axle 210 directions in a manner described.At the other end 214 places of winding mandrels main shaft 210, one second terminal backstop sleeve 250 is nested with on axle 210, and mat pin 252 and being fixed thereon.As can see from Figure 7, backstop sleeve 250 one in annular end face 254 be tight against an annular end face 256 of an adjacent core pipe 234.All terminal stop parts 224 and 250 all are positioned on the winding mandrels main shaft 210, so that pressure spring 228 is in impaction state, thereby an axial pressing force are acted on spacer tube 232 and the core pipe 234.Therefore, though core pipe 234 can rotate freely around main shaft 210, this set arrangement has hindered all core pipes and has done rotation fully freely.The size of rotational resistance is a plurality of functions that comprise the variable of the application force that pressure spring 228 is produced, and can form a constant moment of torsion in the adhesive tape winding process.

As can see from Figure 7, each core pipe 234 has enough width to accept an article tape that is used for forming tape roll 15.Spacing between the Zhu Xin pipe 234 is that the width by all spacer tubes 232 is determined.But, because all article tapes of replacing are delivered to winding mandrels 55 from anvil roller 48, therefore, be sent between all edges of adjacent strips bar of winding mandrels 55 spacing preferably with the width identical (when cutting knife 203 is spaced at equal intervals) of each article tape.

At the winding mandrels shown in Fig. 7-Figure 12 is one to be used in the winding mandrels 55 in the turntable assembly 65.As above mentioned, all article tapes 51 that are wound on down on the winding mandrels 60 in the turntable assembly 70 are (horizontal) of interlocking with all article tapes 50 on the winding mandrels 55 that is wound on simultaneously in the turntable assembly 65.Therefore, should be understood that, except all spacer tubes and core pipe on the lateral width direction of each winding mandrels opposite at interval, the effect of employed all winding mandrels is identical with the effect of employed all winding mandrels in turntable assembly 70 down in last turntable assembly 65.

Utilize identical winding mandrels (or even simultaneously) can make the tape roll of different in width.These width will be several times of minimum possibility width (each core pipe 1 tape roll).Therefore, by changing the lateral spacing of all cutting knifes 203 in the slitting station 49, can stride across two core pipes and formation one tape roll on the described winding mandrels of the spacer tube between two core pipes (perhaps three core pipe and two spacer tubes wherein).Perhaps, have can using together with the corresponding different cutting knife spacings in the slitting station 49 of different in width (being spacing) through all spacer tubes of alignment and the different winding mandrels of Zhu Xin pipe.

Therefore, each winding mandrels be used as tape roll around axial basis.When an article tape when described winding mandrels forwards, it and compressible material layer 246 fit.Specifically, when adhesive tape with its bonding plane when the direction of winding mandrels coiling axis is reeled because wadding 73 has formed the innermost layer 72 of each tape roll 15, so the outermost end of wadding 73 (referring to Fig. 2 and Figure 11) and all stem shape things 248 fits.In a word, all stem shape things 248 have enough rigidity, thereby when innermost layer 72 is placed on it, can not be driven plain, also should have enough elasticity, thereby when tighten up around core pipe 234 (being rolling-in) innermost layer 72, and subsequently all volume layers of mat article tape wound thereon bonding effect and when being fixed on the appropriate location, can be crooked slightly and can make overall diameter reduce (radial compression).All stem shape thing 248 crooked core pipes 234 that also center on produce the compressions of uniformity substantially, thereby define the internal diameter of each tape roll 15.In Figure 12, show the crooked and compression of all stem shape things 248.As shown in the figure, a part 257 that is positioned at all stem shape things 248 below a tape roll 15 innermost layers 72 bends and around 210 one-tenth compressive states of axle.A part 258 of all stem shape things 248 on the same core pipe 234 is not compacted as shown in the figure, any adhesive tape of not reeling on it.

What should consider is that other material also is suitable for forming compressible elastomeric material on described winding mandrels.These materials can comprise a for example bristle structure, the BRUSHLON that makes such as the 3M company in Minnesota State St.Paul city ^TMMaterial, perhaps a loop material with required elasticity and compressibility feature.Be fit to other material of this purpose and will comprise steel leaf spring, a plurality of spring-loaded device, such as VLIER ^TMPin (the Vlier Engineering company by California Burbank city makes), steel VELCRO ^TMMaterial (by the Velcro USA in state of New Hampshire Manchester city, INC. company make), a smooth foamed materials, the engineered composite material of above-mentioned material, these materials that exemplify are not unique.As long as required radially compressible performance can be provided, and have enough rigidity, thereby wound tape material is to limit its internal diameter around remaining on it, and friction coefficient is enough little, thereby the tape roll of a completion can be disassembled from winding mandrels easily, any such material all is fit to.Described material also must have enough elasticity, thus tape roll in engineering after compacted, can be returned to its original form.

The amount of compression that changes spring 228 can be controlled the core pipe rotative speed that mould strides across a winding mandrels (promptly just the moment of torsion on wound tape).For this reason, can selectively terminal backstop sleeve 224 be fixed on axle position 210 directions, adjustable (such as by the matching thread between sleeve 224 and the axle 210), perhaps all adjust the clearance pads can be added and be located between terminal backstop sleeve 224 and the spring 228, to change the amount of compression of spring 228.Perhaps, do not use spring 228, axial clutching pressure can be acted on the described spacer tube 232 with a near clip (yoke) (be bearing in described turntable assembly), described clip can move by a suitable actuator, thereby when described winding mandrels rotates, can contact with the face that radially is provided with (such as face 236) of the spacer tube of outermost on the winding mandrels, and axle pressure is applied thereto.

Another kind of winding mandrels tension structure has all compressible spring (being positioned at the anchor portion stop part inside on the described winding mandrels main shaft) near each end of described winding mandrels.One the 3rd fixed stop is fixed on the described main shaft, is positioned near its mid point, therefore with described two independently, compacted spring, can limit each axial pressing force (and moment of torsion) of half of described winding mandrels independently.

What it is also contemplated that is also to use the winding mandrels of a mechanical type job in method and apparatus of the present invention.For example, winding mandrels or button spindle (button bar) once radially collapsible/expansion are enough, as long as it can provide radial dimension compensation performance (just should have independent verticity the wound tape volume to each bar), and can support wound tape, and can be easily that completed tape roll is just passable from the device that winding mandrels disassembles.

3. cut and winding assembly

Help in the beginning of the coreless winding on the winding mandrels and cut off adhesive tape between winding mandrels in succession with adhesive tape cutting and winding assembly, this cutting and winding assembly comprise a pair of being pivoted to and the assembly of cooperating with each other of the applying of the winding mandrels in its winder station.Like this, the turntable assembly just must make winding mandrels quite accurately be positioned at winder station, make its suitably alignment in case with the cutting and the winding assembly mutual action of adhesive tape.

Shown in Fig. 6 and 13, for the winder station 52 of last turntable assembly 65, on wrap up assembly 56 and last belt hold roller and knife assembly 57 and constituted cutting and winding assembly.Last parcel assembly 56 comprises the parcel framework 264 that is supported by the arm of installing along a side direction pivotal axis 268 pivotly 266.Last knife assembly 57 has the cutter framework 270 by arm 272 supportings, and this arm also will align so that pivot along side direction pivotal axis 268.Equally, the winder station 53 of following turntable assembly 70 has one by wrapping up cutting and the winding assembly that assembly 61 and following belt hold roller and knife assembly 62 constitute down.Wrap up assembly 61 down a parcel framework 278 that is supported by the arm of installing along a side direction pivotal axis 282 pivotly 280 is arranged.Following knife assembly 62 has a cutter framework 284 by arm 286 supportings, and this arm also will be installed pivotally along side direction pivotal axis 282.

Consult turntable assembly (Fig. 6 and 13) again, it is to begin at its winder station separately that many article tapes are wound on the winding mandrels, but also has carried out a large amount of coilings on this station.When the coiling work of the last article tape 50 of the winding mandrels 55a in coiling mandrel winder station 52 (position C) drew to an end, the winding mandrels 55b of a sky entered ready position B (see figure 6) by last turntable assembly 65.Equally, winding mandrels 60A is at its following winder station 53 (position C) of turntable assembly 70 all article tape 51 of reeling simultaneously.When the coiling on the winding mandrels 60A drew to an end, the winding mandrels 60b of a sky entered its ready position B.

Parcel and knife assembly extend laterally with winding mandrels in each winder station and article tape applying wound thereon.In the process (as shown in Figure 6) of reeling, parcel and knife assembly leave winding mandrels separately pivotally, the turntable assembly transposition specifically so that empty winding mandrels is had mercy on (from position A to position B).But, when the coiling on the winding mandrels (for example winding mandrels 55a and the 60A in Fig. 6) almost will be finished, the turntable assembly chuck transposition on the D of position, winding mandrels 55a and 60A move on to the position D (seeing Figure 13) on they turntable assemblies separately.When at the winding mandrels 55a of position D with 60A continues rotation and article tape when wound thereon, empty winding mandrels 55b and 60B move to winder station (position C) from the position B on turntable assembly separately, so as with just proal article tape applying.The order that this winding mandrels advances is shown in Fig. 6 and 13.When this winding mandrels transposition, parcel and knife assembly pivot towards each winding mandrels at the sky of its winder station.This pivot is along with advancing, being begun by the function of the band web materials quantity of length coding device 202 monitoring.

In Figure 13, showing advancing to of parcel assembly is enough to fit with all article tapes just rolled up in wound tape that advance to from anvil roller 48 on winding

mandrels

55a and 60a, when one wadding/paster is arranged on detecting the article tape that is advancing, all article tapes that knife assembly is prepared the parcel winding mandrels and advanced.This be by such as be installed in respectively parcel on the

assembly

56 and 61

sensor

288 and 290 optical pickocff realize.Therefore, for example, when sensor 288 detected a front edge of wadding/paster 204, last parcel and

knife assembly

56 and 57 pivoted together, to wrap up the empty winding mandrels 55b and the neighbouring part of all article tapes that is advancing 50 fully.Sensor 290 moves in a similar mode, to survey the front edge of wadding/paster bar 205, so that triggering is wrapped up down and

knife assembly

61 and 62 finally pivots together.

Figure 14 a-141 shows the cutting of adhesive tape and the order of reeling specially on a winding mandrels.These figure and discussion thereof have illustrated last parcel and

knife assembly

56 and 57 and operation.Except that the orientation, following parcel and knife assembly 61 are identical with 62 operation function, and the structure of those assemblies also is identical.

Last parcel assembly 56 has a band conveying roller 292 and a binding roller 294, and (Figure 14 a).Silaatic O shape circle 296 rings of a plurality of lateral spacing settings have constituted the circumferential surface of band conveying roller 292.Equally, the silaatic O shape of a plurality of lateral spacing setting circle 298 has constituted the circumferential surface of binding roller 294.Band conveying roller 292 and binding roller 294 are rotatably supported by parcel framework 264, and are driven, with the direction rotation opposite with winding mandrels 55b.Band conveying roller in each parcel assembly and binding roller are rotatably driven by a share motor (not shown) that is contained in the parcel framework 264.Shown in Figure 14 a and 15, a plurality of tape guide finger 300 lateral spacings also wrap up assembly 56 on excessively.Each tape guide finger 300 is extended between the adjacent O shape circle 296 on the band conveying roller 292, equally also extends between the adjacent O shape circle 298 on the binding roller 294.The base portion 302 of each tape guide finger 300 is installed on the parcel framework 264, and it has second bridging part 304 of one first bridging part 303 and between band conveying roller 292 and binding roller 294 (seeing Figure 15) between its base portion 302 and band conveying roller 292.Each tape guide finger 300 has one from terminal pointer portion 306 that binding roller 294 extends outwardly usually then.The shape of the terminal part of tape guide finger 300 is made the winding mandrels 55b that can wrap up sky, shown in Figure 14 b.

One afterbody coiler assembly 308 also is contained on the parcel assembly 56.This afterbody coiler assembly 308 comprises that one is installed on the arm 310 of parcel on the framework 264 pivotally at pivot axis 312.One upper end of arm 310 is pivotally connected in a linear actuators 314, and this linear actuators is installed on the supporting member 316 that is fixed on the parcel framework 264 such as a cylinder its end pivot.One extensible pole 318 of actuator 314 extends to and is connected in pivotly a upper end of the arm 310 of afterbody coiler assembly 308.One adapter plate that extends laterally 320 is arranged in the lower end of arm 310, and this adapter plate 320 can be fitted with all article tapes 50.All rest roller 322 also are installed near the lower end of arm 310 pivotally by a plurality of supporting members 324.

Last belt hold roller and knife assembly 57 comprise the first and second pressure zone

idler rollers

326 and 328, and they extend laterally and across the transfer path of article tape, and scribble adherent layer.The second pressure zone idler roller 328 is rotatably installed on the cutter framework 270 by supporting member 330.All first pressure zone idler rollers 326 are rotatably mounted by all supporting arm 332, and these supporting arms 332 are installed on the supporting member 330 pivotly at side direction pivot axis 334 places.All supporting arms 332 and all first pressure zone idler rollers 326 depart from cutter framework 270 by the suitable bias unit such as spring 336.

The one adhesive tape cutting blade 338 that extends laterally is installed near the first pressure zone idler roller 326 the cutter framework 270.The pleating plate 340 of one adhesive tape that extends laterally is installed in the next door of adhesive tape cutting blade 338, at adhesive tape cutting blade 338 between the first pressure zone idler roller 326.The one adhesive tape depression bar 342 that extends laterally also is bearing in the next door of adhesive tape cutting blade 338 by cutter framework 270.Adhesive tape depression bar 342 departs from cutter framework 270 by the suitable bias unit such as spring 344.

4. cut and operating winding

Figure 13 show blank coil before the parcel of axle 55b is near completion on the parcel and knife assembly 56 and 57.Figure 14 b illustrates in greater detail this relation.In the operational process of cutting and winding assembly, a plurality of article tapes can be processed on a winding mandrels simultaneously.But for illustrate clear for the purpose of, following discussion only relates to the processing of an article tape.

In case when detecting a front edge 350 of wadding/paster bar 204, parcel and knife assembly 56 and 57 are together in the winding mandrels 55b of sky pivot about, shown in the order of Figure 14 a-14e.In Figure 14 a, show parcel assembly 56 and knife assembly 57 near empty winding mandrels 55b, make that winding mandrels 55b is instantaneous to be contacted with the article tape of sending to 50.In Figure 14 b, show blank coil that the contact of parcel assembly 56 rotating around axle 55b, and the article tape that its pressure zone deflector roll 322 (scribbling adherent layer) is fitted and sent to, so that it is pushed away winding mandrels 55b.Can prevent the unnecessarily operation on the compressible material layer on the winding mandrels 55b 246 of adhesive agent on the article tape 50 like this.In Figure 14 c, show parcel assembly 56 and at first contact article tape 50, so that dicing tape with knife assembly 57.Specifically, the viscose glue side 27 of article tape 50 has contacted and has been bonded in the adapter plate 320 of the arm 310 on parcel assembly 56, and the opposite side of article tape 50 contacts with the adhesive tape depression bar 342 of knife assembly 57.Meanwhile, the first pressure zone idler roller 326 and the relative article tape 50 of fitting of winding mandrels 55b that rotates.

When parcel and

knife assembly

56 and 57 winding mandrels 55b on every side continue to merge together the time,

spring

336 and 344 is exerted pressure to the first pressure zone idler roller 326 and adhesive tape depression bar 342 respectively.So just a section 352 article tape 50 is fixed between them so that cutting.Shown in Figure 14 c and 14d, when adhesive tape cutting blade 338 was fitted this section article tape 352 (fore-ends that wadding/paster bar 204 is arranged on it), this section article tape 352 remained under the tension state.Shown in Figure 14 e, when wrapping up assembly and

knife assembly

56 and 57 perfect fittings with parcel winding mandrels 55b, the adhesive tape cutting blade has cut this section article tape 352.Spring 336 is in compressive state, and it makes the first pressure zone idler roller 326 against winding mandrels 55b.Spring 344 also is in compressive state, and it makes adhesive tape depression bar 342 against adapter plate 320.Article tape 50 becomes two

article tape

50a and 50b (Figure 14 e) now, and wherein article tape 50a almost is wound on the winding mandrels 55a fully, and article tape 50b has just begun to be wound on the winding mandrels 55b.

Cut off in the process at this, adapter plate 320 and adhesive tape depression bar 342 are cooperating that part of front that just in time is fixed on wadding/paster bar 204 of article tape 50a being contained adhesive agent.Therefore, when adhesive tape cutting blade 338 cut off wadding/paster bar 204, just the tail end of the article tape 50a on being wound on winding mandrels 55a had constituted in wadding/paster bar 204 one section 76.Consult Fig. 2 again, this section 76 hidden the bonding material at the article tape tail end, constituted an adhesive tape mark part thus.Remaining wadding/paster bar 204 is wound on the winding mandrels 55b, forming the innermost layer 72 of the tape roll 15 that the next one will form, and constitutes its wadding 73 (Fig. 2).In addition, cutting has constituted the front edge 71 of the innermost layer 72 that will be formed by wadding 73, and this edge is introduced to around the winding mandrels 55b.

When article tape 50a remained between adapter plate 320 and the adhesive tape depression bar 342 (for example Figure 14 c-14h), the first winding mandrels 55a continued rotation, article tape 50a is in places under the tension state between tape roll 15 and parcel and knife assembly 56 and 57.Winding mandrels 55a among Figure 14 a-14k is arranged in the position D of turntable assembly 65, and continue rotation at the axle 210 of the winding mandrels 55a of this position, the core pipe 234 of coiling tape roll 15 slides on the axle 210 of winding mandrels 55a and rotates, so that tape roll 15 is remained on the position shown in Figure 14 c-14h.

The order of Figure 14 d-14g shows the actual winding process of the tape roll innermost layer on winding mandrels 55b.Shown in Figure 14 e, the pleating plate 340 of adhesive tape order about will form next tape roll the leading end that has just cut off (edge 71) upwards, the O shape circle 296 on winding mandrels 55b and band conveying roller 292 constitutes rolls a motion.First bridging part 303 of tape guide finger 300 also helps this leading end to introduce among that rolls a little.In Figure 14 f, can see between the O shape circle 296 of winding mandrels 55b and band conveying roller 292 roll a little in guide edge 71.Second bridging part 304 of tape guide finger 300 help guide edge 71 be fed between the O shape circle 298 of winding mandrels 55b and binding roller 294 roll a little among.In Figure 14 g, this moment, guide edge 71 passed through rolling a little between winding mandrels 55b and the O circle 298 that bundlees roller 294.The terminal fingers 306 of tape guide finger 300 helps the rebasing relation of the viscose glue side of the afterbody of guide edge 71 guiding becoming innermost layer (wadding 73) and its article tape 50b subsequently.328 alignment of second belt hold roller are so that article tape 50b forms the contact circular arc of maximum range around winding mandrels 55b, and as close as possible thus terminal fingers 306 overlaps on the innermost layer article tape 50b that is advancing.Can see from Figure 14 h that at last guide edge 71 is covered by the tail end of innermost layer (being formed by wadding 73) now.Along with coiling is proceeded, the viscose glue side 27 contact waddings 73 of bar 50b, and since the first pressure zone idler roller 326 (although it has been pushed to cutter framework 270, but continue and can rotate freely) and force pressure thereon, so that bonding thereon, and determined the diameter of the innermost layer around the winding mandrels 55b.

Deliver on the winding mandrels 55b circumference and enter the path that constitutes by the tape guide finger 300 around the winding mandrels for ease of the leading end 71 of wadding 73, in another embodiment, with one than linear velocity the fast and faster speed drive first pressure zone idler roller 326 than the rotating speed of winding mandrels 55b.This can guide leading end 71 to leave driven pressure zone idler roller 326, and upwards arrives the transfer path that is made of the tape guide finger 300 around the winding mandrels 55b of rotation.

With a linear speed and a faster circumferential velocity rotating

band conveying roller

292 and 294 rotations of binding roller of rotative speed than winding mandrels 55b.Therefore, when wadding 73 is fitted band conveying rollers 292 and binding roller 294, it be forced under the tension state that increases between those rollers and the winding mandrels 55b roll a little among, and be pulled with respect to the linear speed of article tape 50b.Be with conveying roller 292 also to be tending towards making leading end 71 to leave and be with conveying roller 292 to be wound up on the winding mandrels 55b with bundling roller 294 with the rotative speed that bundlees roller 294 increases, and below the tail edge of wadding 73.Band conveying roller 292 drives by a free-wheel clutch, thereby allows binding roller 294 to cause more high speed revolution.

Be wound on the tension force layer of compressive material 246 (shown in Figure 11 and 12, passing through the bending of stem shape thing 248) of the increasing on the innermost layer on the core pipe 234, constitute the internal diameter of innermost layer thus.Material layer 246 is wound on the adhesive tape on the winding mandrels 55b under tension state innermost layer tangentially acts under the effect of shearing force of its outside face (stem shape thing 248) and compresses.Therefore, innermost layer spurs with being tensioned or is bundled in winding mandrels 55b and goes up with to a desired position, when the adhesive agent on the article tape 50b surrounds and fixedly innermost layer is in position when (preferably the length of wadding 73 is longer than the circumference of tied innermost layer slightly), this tension force just is held and is keeping.Band conveying roller 292 and binding roller 294 can make innermost layer be wrapped on winding mandrels 55b at short notice with the effect of winding mandrels 55b.In case the article tape 50b that advances goes up adhesive agent 27 and contacts with the wadding 73 of reeling, and has just stopped the increase of pulling force, then article tape 50b forms force fit on the circumference of winding mandrels 55b.In this course of processing, core pipe 234 can slide with respect to the axle 210 of winding mandrels and rotate.Final result is that the innermost layer of article tape is being reeled quite tightly, and particularly the leader of article tape is covered by wadding/paster material (wadding 73), and the article tape that contains adhesive agent then is constantly wound thereon.In further processing, tape roll 15 can not slide with respect to core pipe 234 and rotate, but core pipe 234 can be with respect to the axle 210 slip rotations (being design-calculated like this really) of winding mandrels.

After the initial parcel of article tape 50b on winding mandrels 55b finished (Figure 14 h), parcel assembly 56 and knife assembly 57 pivot around pivot axis 268, and separate with winding mandrels 55b.Shown in Figure 14 i, in case parcel and knife assembly 56 and opened enough far in 57 minutes and make adapter plate 320 and 342 disengagings of adhesive tape depression bar, the tension force that acts on the article tape 50a owing to the rotation of winding mandrels 55a acts on arm 310.Arm 310 just freely pivots around pivotal axis 312, thereby pivots towards winding mandrels 55a, and bar 318 indentation cylinders 314.The article tape 50a of guiding winding mandrels 55a still is bonded in adapter plate 320 as beginning, shown in Figure 14 i.Winding mandrels 55a continues rotation, because article tape 50a no longer remains in the parcel assembly 56, the remainder of article tape 50a begins to be wound on the tape roll 15 that is positioned at winding mandrels 55a, and holding arms 310 pulls to winding mandrels 55a.Therefore, the slip of the core pipe 234 under the tape roll 15 of winding mandrels 55a rotation slows down owing to the tape roll on the winding mandrels 55a 15 begins to rotate with winding mandrels 55a again.At last, the remainder of the direction of tilt of adapter plate 320 and article tape 50a makes the viscose glue side of article tape 50a peel off adapter plate 320, shown in Figure 14 j.Finally, arm 310 is pulled to rest roller 322 and outer circumference surface position contacting at the tape roll 15 of rotation, erasing or rolling on the outermost layer of tape roll 15 thus.Cylinder 314 temporary transient holding arms 310 remain on this position, and cylinder is driven bar 318 is extended then, and arm 310 is pivoted to the appropriate location on the parcel framework 264 backward.When arm 310 pivots outwardly and backwards (as shown in the figure), parcel assembly 56 can temporarily pause on winding mandrels 55b, or arm 310 can move in parcel assembly 56 pivots the process of leaving winding mandrels 55b.

Parcel assembly 56 and knife assembly 57 continue to pivot and leave winding mandrels 55b, up to they winding mandrels path withdrawals from being made of last turntable assembly 65 fully.Simultaneously, quicken the rotative speed of winding mandrels 55b, make article tape 50b fast winding on winding mandrels.Winding mandrels 55b is with a speed rotation faster than the linear speed of the band web materials of sending to 26.Therefore, the rotation of winding mandrels places under the effect of tension force article tape 55b in winding process, although this warp tension ratio places the tension force of article tape 55b little by parcel assembly 56 in the initial winding process that surrounds.Because stage clip 228 acts on the adjusting that the power on the independent core pipe 234 that rotates is carried out, the moment of torsion that acts on each radial dimension compensation core pipe 234 is a unmodified.

Figure 141 shows the winding mandrels stabilizing component 354 that is contained on the knife assembly 57.For the stabilizing component 354 of winding mandrels is not shown in other accompanying drawing for the purpose of clear.The stabilizing component 354 of winding mandrels comprises as be pivotally mounted to one on the knife assembly 57 at side direction pivot axis 356 stablizes finger 355.The lower end 357 that should stablize finger 355 is connected in an extensible pole 358 of a linear actuators 359 pivotly.Linear actuators 359 has a cylinder portion 360, and this cylinder is installed on cutter framework 270 pivotly by a supporting member 361 again.The upper end 362 of stablizing finger 355 be formed with can with a near isolated tube 232 ingears one socket 363 preferably being positioned in the middle of the rotating winding mandrels 55b.The lateral width of stablizing finger 355 is littler than the width that is wound on the article tape 50b on the winding mandrels 55b, extend between the two adjacent article tape 50b that are wound on the winding mandrels 55b thereby allow to stablize finger 355.According to the width and the rotational stiffness of winding mandrels, can one or more stable finger 355 be set along winding mandrels.

In the adhesive tape winding process, winding mandrels 55b stablizes finger 355 and is applied to it, to prevent undesirable vibration occurring at rotating winding mandrels between its chuck with required fair speed rotation.Actuator 359 is in the position that its arm is withdrawal usually, is in position shown in dashed lines among Figure 141 thereby stablize finger 355.When last parcel assembly 56 is regained (innermost layer formed and fixing after) from winding mandrels 55b next door, driving linear actuators 359 extends its bar 358, stablize finger 355 like this and be pivoted to rotating winding mandrels 55b and contact, shown in Figure 141.Finish (tape roll of " work in-process ") when the coiling of a tape roll 15 on winding mandrels 55b is approaching, when winding mandrels 55b inserts to its next position D on last turntable assembly 65, stablize finger 355 and regain, so that make the winding mandrels of a sky be indexed into winding position C from its ready position B.

In article tape was wound on process on the winding mandrels 55b, tape roll was around recovering relative azimuth shown in Figure 6 with cutting assembly.Parcel assembly 56 is got back to after its position shown in Figure 6, and the winding mandrels at the sky of position A is indexed into ready position B then, begins work programme again.When wrapping up assembly 56 at its ready position shown in Figure 6, band conveying roller and binding roller do not rotate.But, pivoting to winding mandrels 55b when wrapping up assembly 56 beginnings, driving motor mounted thereto is with regard to rotating band conveying roller and binding roller.Equally, leave winding mandrels 55b when the parcel assembly begins to pivot, electrical motor just stops to drive.

At this moment, no longer rotation drives the winding mandrels 55a of the tape roll 15 that contains a plurality of windings, and the chuck of winding mandrels inserts to unloading position E from delivering position D on last turntable assembly 65.A winding mandrels that has the tape roll 15 of all windings on it leaves after the chuck of its turntable assembly, make these tape rolls along axially (as the direction of Figure 12 arrow 365) slippage of winding mandrels, and from winding mandrels, extract out, submissive stem shape thing 248 bendings move axially with respect to the axle 210 of winding mandrels to allow tape roll 15, then after tape roll 15 passes through, stem shape thing returns to their original stand up position (shown in a section 258 of the stem shape thing 248 among Figure 12).

The operation in each stage shown in Figure 14 a-141 is very fast generation.Sending to of article tape 50 is non-stop, to carry out cutting shown in Figure 14 a-141 and initial volume around work.The conveying of article tape 50 drops to a speed slower than its winding speed, but needn't stop fully, and article tape is sent to.

Machining control

As previously mentioned, be provided with must accuracy control to reach multiple motors and the actuator that required coreless rolls is reeled.The control of system preferably uses a micro controller system to realize that this micro controller system operably is connected in each electrical motor, with driving and the speed of controlling them, also is connected in each actuator to control their work.For example, in patch applicator 37, microprocessor will be according to the signal driving motor 104 that receives from optical sensor 186 and 188.Equally, drive cutter actuator 118 patch applicator 37 according to the signal that receives from microprocessor by optical sensor 186 and 188, chuck 113 also is like this, and also having the operation of hydraulic actuating cylinder 176 also is like this.Similarly, microprocessor control is advanced by the electrical motor of the electrical motor of this equipment, all turntable assemblies, the electrical motor of all winding mandrels of rotation and the electrical motor on all parcel assemblies the band web materials.The those of skill in the art in present technique field should give and are understood that, except aforesaid all sensors and length coding device, also some sensors can be set, as using usually, be controlled at the operation and the coordination of these assemblies in this type and the complicated system.

For example

In one embodiment of the invention, the nominal aperture of band web materials feed rolls is 60 inches.Adhesive tape be by trade mark be that No. 371 of TARTAN, thickness are 0.002 inch, material on the raw material supply roller of the cartridge seal band made by the 3M company in Minnesotan St.Paul city is formed.After passing through the processing such as equipment shown in this article, tape roll has formed, and the width of each finished product tape roll is 48 millimeters, about 100 meters of the length of adhesive tape.The internal diameter of finished product tape roll is 25 millimeters, and external diameter is about 3.25 inches.Tape roll around linear speed (for example Fig. 6) can for example be 500 feet of per minutes, cutting and the deceleration when reeling beginning are about 3 feet of per minutes.During reeling, winding mandrels is with the speed rotation than the fast 5-10% of feed rate that is with web materials.In addition, owing to be microprocessor control, the rotative speed of the winding mandrels in winding process is to change with the external diameter that is wound on the tape roll on the winding mandrels, so that just over the speed of being with the width of cloth.Diameter depends on the thickness of being with web materials and the tension force that acts on the band web materials in winding process.Initial band width of cloth tension force (incipient stage of tape roll coiling operation) is 2/3 to 3/4 pound/linear inch width, and tape roll is wound on the winding mandrels in a constant moment of torsion mode then.In this example, on the winding mandrels core pipe be coated with make by the 3M company in Minnesotan St.Paul city, dash number is the SCOTCHMATE of 70-0704-2795-3 ^TMPressure-sensitive grommet material, each DELRIN ^TMThe core external diameter of pipe is 0.875 inch.In the process of coiling innermost layer, the rotative speed of band conveying roller and binding roller is 3-5 a times of band web materials feed rate.When making this routine tape roll, adhesive tape has a viscose glue side, and its viscose glue side is to the axle of winding mandrels when reeling.Thickness is provided is 0.003 inch, be paper linings/paster of 3.75 inches along the length of band web materials transfer path.In case be cut, about 3.25 inches wadding/paster has constituted the wadding of tape roll, and the remainder of wadding/paster has constituted the adhesive tape paster part of a tape roll outermost end that forms previously.

Though described the present invention with reference to preferred embodiment, it is apparent to those skilled in the art that under the situation that does not break away from essence spirit of the present invention and scope and can change to form of the present invention and details.Therefore, scope of the present invention is not limited to equipment described herein and process, but is limited by the described equipment of language in claims and method and their equivalent of the apparatus and method.

For example, also can use the material layer of the compressible and bendable on the core pipe of winding mandrels so that use a horizontal coil technology rather than with one heart the coiling technology form the centreless pressure sensitive adhesive roll coil of strip.In this case, just be long enough to hide the adhesive agent of the first time of horizontal coil processing, constituted the helix innermost layer on the tape roll that forms thus eventually like this by part by the bonding wadding on the wound tape bar.

It is also conceivable that and do not have adhesive tape paster part on the formed tape roll.In this case, Cutting Control and winding assembly, cut off the article tape of sending to the side direction guide edge at wadding/paster, the tail edge that makes final coiling become the article tape that cuts off at the outermost layer of finished product tape roll and edge does not thus have wadding/paster material.Like this, utilize the wadding of the tape roll of all waddings/patch-shaped rolling on the winding mandrels.

In another embodiment, when winding mandrels was reeled, the smaller side of guide edge that is wound on the tape roll on the winding mandrels was crooked backward on it to bar.When curved side direction bar of coming was wound on the winding mandrels, it was at first fitted with the adhesive agent of the article tape of sending to then.Like this, not can not the exposing of guide edge itself, but be clipped in and be fixed between first innermost layer and second innermost layer of formed tape roll.Therefore, it is non-caked that such structure has reduced the bottom lap of guide edge, and therefore be easy to run into the possibility with accidental stripping tape volume.

Though a side of pressure sensitive adhesive tape previously discussed has adhesive agent, this adhesive agent is wound on the inboard of coiling adhesive tape, but can consider that the present invention that this paper constitutes is applied to form the coreless rolls (the viscose glue side outwardly) of reeling with opposite structure, and form the pressure sensing adhesive band and pass on the coreless roll and the double-faced pressure-sensitive adhesive tape of material (transfer materials).Should give and be understood that, the viscose glue side is the coiling of the coreless rolls of the coiling axis of the winding mandrels different processing notice that will cause some to consider dorsad.For example, when providing one to hide the wadding of the adhesive agent on this adhesive tape innermost layer, the adhesive agent on the adhesive tape just can be fitted with its coiling in succession when the 3rd layer on winding mandrels beginning.Therefore, when initial two-layer of adhesive tape is wound on the winding mandrels, must keep the tension force that increases to some extent on the adhesive tape, so that adhesive tape tightly is wrapped on the winding mandrels with its oneself adhesive agent.About this point, roller and O shape circle on cutting and the winding assembly must be coated with adherent layer or be formed (being silaatic) by a kind of suitable material, that be because of they will with adhesive tape on contain a side contacts of adhesive agent.Because adhesive agent at an opposite side of adhesive tape, just must change the structure of afterbody coiler assembly 308 again, because the adhesive tape that is cut does not have cohesive force to act on adapter plate, but acts on adhesive tape depression bar 342.In addition, because the outermost outside face of finished product tape roll has its adhesive agent, the length of wadding/paster will prolong, and make this part of the adhesive tape paster part of previous formation be long enough to and can extend on the whole circle outermost layer of finished product tape roll, hide the adhesive agent that exposes on it thus.Because the non-viscose glue side of adhesive tape is towards winding mandrels, so the innermost layer of viscose glue side pressure sensing adhesive band does not outwardly need wadding to prevent that adhesive agent is fitted on the winding mandrels.Therefore, consider at innermost layer and not establish wadding, in this case, be enclosed in cohesive force on the winding mandrels from the second layer.If one wadding/paster is provided, can cuts off wadding/paster at its rear lateral edge by cutting and winding assembly, and only be used for hiding the outermost layer of the tape roll that machines, rather than be used as the wadding of innermost layer.

Claims

1. arbor assembly that in the coreless rolls of coiling pressure sensitive adhesive tape, uses, it comprises:

One has the cylindrical spindle of a S. A., and at least a portion of described main shaft has one and is suitable for the peripheral adhesive tape supporting part that adhesive tape is wound thereon,

Described peripheral adhesive tape supporting part has an adhesive tape binding face part, in a radial direction, described adhesive tape binding face partly can compress, but have enough rigidity, thereby, it can support described adhesive tape when described axle is gone up with the formation tape roll when being wound on continuously, have enough flexibilities again, thereby can be easily the tape roll of a winding be disassembled from described axle.

2. arbor assembly as claimed in claim 1, it is characterized in that, when described tape roll on described main shaft the time, is tangentially being acted on by described adhesive tape under the effect of the shearing force on the described peripheral adhesive tape supporting part, described adhesive tape binding face partly can compress.

3. arbor assembly as claimed in claim 2 is characterized in that, described adhesive tape binding face part is formed by the stem shape thing of a plurality of softnesses, and described stem shape thing outwards extends out substantially with approximately equalised height from described main shaft.

4. arbor assembly as claimed in claim 1 is characterized in that, described main shaft have a plurality of independent, along its axially extended peripheral adhesive tape supporting part.

5. arbor assembly as claimed in claim 4 is characterized in that, described peripheral adhesive tape supporting part is axially offset from one another on the direction of described main shaft.

6. arbor assembly as claimed in claim 4 is characterized in that, each peripheral adhesive tape supporting part comprises that one is used for supporting the barrel portion of described adhesive tape binding face part.

7. arbor assembly as claimed in claim 6 is characterized in that, each barrel portion can independently rotate around the axis of described main shaft.

8. arbor assembly as claimed in claim 7 is characterized in that it also comprises:

One can limit the engaging and disengaging gear of each barrel portion around the rotative speed of described main-shaft axis.

9. method that is used for forming the coreless rolls of a pressure sensitive adhesive tape, it may further comprise the steps:

One first rotation winding mandrels is provided in one first winder station;

The one leading edge guiding of an article tape that is forwarding of pressure sensitive adhesive tape is reeled and directly support first axle;

With described adhesive tape be wound on unceasingly himself go up and described first axle on, to form the coreless rolls in the course of processing;

Coreless rolls in described first axle and the course of processing is forwarded to the second transmission station, simultaneously one second axle is forwarded to first winder station, to fit with the described adhesive tape that is forwarding;

The adhesive tape of cut-out between first and second axles is wound on a trailing edge of the described adhesive tape on described first axle with qualification; And,

Described tape roll is transmitted on described first axle of station around being positioned at described second, wound thereon up to described trailing edge, on described first axle, to form a completed coreless rolls.

10. method as claimed in claim 9 is characterized in that it also comprises:

Completed coreless rolls is disassembled from described first axle.

11. method as claimed in claim 9 is characterized in that, described cut-out step is carried out near second axle, and can also limit a new leading edge of the article tape that just forwarding, and it also comprises:

Be wound on the guiding of described new leading edge on second axle and directly supporting described second axle.

12. method as claimed in claim 11 is characterized in that, it comprises:

Completed coreless rolls on first axle and described first axle is disassembled from the described second transmission station;

With described adhesive tape be wound on continuously himself go up and described second axle on, to form second coreless rolls that is in the course of processing;

Be in the total coreless rolls of the course of processing with second on described second axle and its and forward to second and transmit station, simultaneously one the 3rd live spindle is forwarded to first winder station, to be meshed with the adhesive tape that is just forwarding;

The adhesive tape of cut-out between the second and the 3rd axle is wound on a trailing edge of the adhesive tape on second axle with qualification; And,

Described tape roll is on second second axle that transmits in the station, wound thereon up to the described trailing edge that is wound on the adhesive tape on second axle, on described second axle, to form one second completed coreless rolls.

13. method as claimed in claim 9 is characterized in that, also comprises:

One adhesive tape binding face is partly formed at least a portion of a circumferential outer adhesive tape areal of support of first axle, one radial dimension of described adhesive tape binding face part is relative with the axis of first axle, and can compress, but it is enough firm, thereby when it being wound on continuously on described first axle, can support described adhesive tape, enough flexibilities are arranged again, thereby can easily completed coreless rolls be disassembled from described first axle.

14. method as claimed in claim 9 is characterized in that, described adhesive tape is reeled towards described first axle with its bonding plane.

15. method as claimed in claim 9 is characterized in that, also comprises:

Before the guiding step, along the part article tape of pressure sensitive adhesive tape one wadding/paster being applied ointment or plaster has on the adhesive tape face of viscosity.

16. method as claimed in claim 15 is characterized in that, also comprises:

The article tape and first live spindle of the pressure sensitive adhesive tape that forwarding are aligned, thereby the wadding/paster of certain-length can be covered adhesive agent on the innermost layer that is wound on the adhesive tape on first axle.

17. method as claimed in claim 6 is characterized in that, described adhesive tape is to face the direction of first axle and reel with its bonding plane.

18. method as claimed in claim 16 is characterized in that, described adhesive tape is reeled with one first tensile force, and comprises:

With one second tensile force, that part of adhesive tape that can form the innermost layer be wound on the adhesive tape on first live spindle is placed on first live spindle.

19. method as claimed in claim 15, it is characterized in that, it is cutting by having that part of adhesive tape of described wadding/paster that described adhesive tape cuts off step, thus near the adhesive agent the trailing edge that a part of wadding/paster is covered be positioned at the adhesive tape on first axle.

20., it is characterized in that it also comprises as separating method as described in the claim 9:

Supply one has the band width of cloth of first and second first type surfaces, wherein has the pressure sensitive adhesive agent on the surface; And

Described band width of cloth end wise slitting is become the pressure sensitive adhesive tape bar.

21. method as claimed in claim 20 is characterized in that, described slitting step has formed many pressure sensitive adhesive tape bars.

22. method as claimed in claim 21 is characterized in that, it also comprises:

Provide two pairs independently to reel and transmit station, and each is separated first and second axles of station; And,

Article tape is directed to other to station from the band width of cloth every a ground, thereby forms the coreless rolls of pressure sensitive adhesive tape.

23. the coreless rolls of a pressure sensitive adhesive tape that utilizes the described method of claim 9 and form.