CN1827361A

CN1827361A - Device and method for winding web

Info

Publication number: CN1827361A
Application number: CN 200610054746
Authority: CN
Inventors: 中田知宏; 藤原隆行; 濑户松夫
Original assignee: Fujifilm Corp
Current assignee: Fujifilm Corp
Priority date: 2000-12-22
Filing date: 2001-12-21
Publication date: 2006-09-06
Also published as: JP2002187649A; JP3993743B2

Abstract

The invention provided a web winding method and device in which winding condition is considerably excellent by preventing the web from damaging and prevent generation of irregular winding at an end face of a roll member obtained by winding the web. At an initial state of the web winding, the winding is carried out by a winding tension command value T1 which is low by a length corresponding to a length of a core. Then, a tension is increased at a predetermined increasing rate, thereafter, the winding of the web is carried out while gradually decreasing the tension from a high winding tension command value T3.

Description

The apparatus and method that are used for winding roll film

The application is that application number is 01144769.9, the applying date is December 21 calendar year 2001, denomination of invention is divided an application for the application for a patent for invention of " apparatus and method that are used for winding roll film ".

Technical field

The present invention relates to a kind of apparatus and method that are used for around a mandrel winding roll film.

Background technology

Known in the prior art by reel round mandrel such as the film band of elongation and paper roll band to make the technology of a high-quality reel, closely contact coiling and can make reel eliminate the concavo-convex or uneven of gauffer and edge by winding is contacted the pressure roller with one to prevent that winding from having air to enter into winding in the process of reeling, so manufacture a kind of reel (referring to Japanese patent application publication No. 11-59985) that is in fine reeling condition.

According to known method, because this contact pressure roller is maintained at the direction that contacts with winding, if winding is a kind of fragile material such as film, this will lower the quality of winding especially.

The method that has proposed a kind of winding roll film in the prior art reduces with the quality that prevents winding and prevents that winding from producing fold.According to above-mentioned method, at an initial winding portion to be base volume reel under 70% or lower low tensioning degree of tensioning degree this winding, with, when the coiling number of winding is final winding number purpose 1/10, the tensioning degree of reeling is returned to high tensioning degree fast, the winding (referring to Japanese patent application publication No. 60-112562) of after this under a tensioning degree that reduces gradually, reeling.

The disadvantage of above-mentioned existing method is: because the coiling tensioning degree is returned to high tensioning degree apace from low tensioning degree, winding will be born an excessive load and is easy to be damaged in the place that applies excessive load.In addition, shown in Figure 22 as in the accompanying drawing, owing to do not consider winding f around may being out of shape of the mandrel of reeling, the end surfaces b of the band f that reels may produce that the edge rises and falls or distortion according to be applied to tensioning degree on the winding d when reeling.Particularly, if winding a occurs crookedly when winding roll film f, winding f is forced to respect to the moving axially of mandrel a, and it is concavo-convex or uneven to produce the edge on end surfaces B.Concavo-convex or uneven meeting like this causes the width of the final reel of making to change.Therefore, when reel be fed into subsequently with the state of reel in shading under pack step the time, reel can not be packed well under the shading state and reach perfect performance and blur owing to exposure produces.In addition, above-mentioned reel can produce bad cooperating with the image forming device such as visual setting apparatus, promptly may not be inserted into and be loaded in carrying on the box on the above-mentioned figure building mortion.

Be used for will elongation the film auto reeling the film backrush device on the mandrel and one be used for wide film raw material be cut into one have the elongation film of given width and film auto reeling that then will elongation on a mandrel cutter sweep all adopt a winding mechanism.This winding mechanism is used for the film of elongation being supported on when a winding position rotates when above-mentioned mandrel the circumferential outer surface of above-mentioned mandrel.

As disclosed in Japanese patent application 57-40052 number (being called " prior art 1 " later), winding mechanism has a retainer and is used to keep a spool, it angular movement can be arranged is installed in the far-end of a wrapping machine and an actuating mechanism and is used for reciprocally moving above-mentioned wrapping machine and aligns with the central axial line of a coiling mandrel up to the central axial line of the spool that is held the device maintenance.

Disclosed a kind of coiling reel comprises the axle that is used for band is wound as a reel in Japanese Utility Model patent disclosure 48-38149 number (being called " prior art 2 " below), a plurality of wrapper rolls that are provided with around axle and wrapper plate and a fluid pressure cylinder are used for the position of wrapper rolls since the band of reeling is pressed into and backrush.

According to prior art 1, wrapping machine has an opening, and this opening aligns with the direction that film enters, and promptly aligns with the direction of film tension effect.Therefore, when the film of elongation when mandrel (spool) is reeled, above-mentioned mandrel may be by great bending under the tension of film.If above-mentioned mandrel is bent, the tension of film just is concentrated in the opposite edges of mandrel, causes that the instability of the film of elongation moves and disturb the winding-structure that extends film.

According to prior art 2, the design of described coiling reel is will be according to the gap of thickness setting between axle (with respect to mandrel) and each wrapper rolls of the band that will reel (with respect to the film of elongation), so that band is kept good reel structure when beginning to reel.In coiling reel without any the structure and the feature that under the strap tension effect, prevent bent spindle.In other words, do not have to consider between the pressure of the tension force effect of band and wrapper rolls, to reach balance, so the tension force effect of band trends towards acting on the axle so that bent spindle.

In addition, according to prior art 2, be provided with the gap between axle and wrapper rolls and wrapper plate, above-mentioned band is wound on the above-mentioned axle by the gap., when by this way the film roll of elongation during around above-mentioned mandrel, can being had difficulties with the circumferential outer surface of above-mentioned mandrel closely contacts aspect at the film that keeps elongation, the instability that can become of the winding-structure on the end surfaces of the film reel of reeling.

Summary of the invention

It is a kind of with the method and apparatus of highly neat mode of reeling around a mandrel winding roll film that a basic purpose of the present invention is to provide, and it can not cause damage and form the edge on the end surfaces of the reel that is wound into concavo-convex or uneven to winding.

A main purpose of the present invention provide a kind of with a simple steps round the mandrel method of winding roll film reposefully and highly precisely.

Another object of the present invention provides a kind of equipment of winding roll film reliably that is used for, and can prevent that mandrel is bent with a simple arrangement.

According to the method and apparatus that is used for around the mandrel winding roll film of the present invention, winding is wound up into a given length round mandrel under low tension force, can not make the mandrel distortion so the rigidity of predesignating is distributed to mandrel.Be arranged on length that winding under the low-tension effect reeled round mandrel so that corresponding to the length of mandrel, so prevent such as on short mandrel, the fault that winding is offset gradually occurring.

Then, in winding when mandrel is reeled, the take-up tension that increases under with a given ratio, then a predetermined ratio reduces the tension force of winding.So winding is tightly reeled round the mandrel that is assigned enough rigidity, and can not bear excessive load.Winding on the mandrel can not be damaged and film is in the state of neat coiling so be wound up into, and can not occur convex-concave and injustice at the end surfaces of film.

In the method that winding is reeled round mandrel according to the present invention, winding is supported on by a plurality of rollers on the circumferential outer surface of mandrel, and mandrel is rotated and has the gap that limited by block to be used for the passage of the winding between the circumferential outer surface of block and mandrel.From the zone of the leading end process of winding, above-mentioned roller and block shrink away from above-mentioned mandrel continuously.Winding is wound to a few circle round mandrel after, shrink all roller and block from above-mentioned mandrel.

Because above-mentioned roller and block shrink away from above-mentioned mandrel continuously, have only the leading end of winding to be maintained on the circumferential outer surface of mandrel, and above-mentioned winding can be by not lax under the tension force effect of winding.So it is can be by simple process steps reliable and obtain to have the high-quality coiling product of desirable winding-structure effectively.

In addition, according to the device that a winding is reeled round mandrel of the present invention, one is used for when mandrel is rotated the guiding winding has a pressure roller movably around the winding mechanism of mandrel, this pressure roller be used for winding be pressed against on the mandrel with support winding and be used for along one and the side that tension force was applied of winding be compressed against mandrel in the opposite direction, be used to produce a gap with a plurality of movably blocks, this gap is used for the passage of the winding between the circumferential outer surface of block and mandrel.

This movably pressure roller be pressed against in the opposite direction on the mandrel with the side that tension force applied of winding along one, to remain on poised state with the tension force of winding with by pressure roller institute applied pressure.So, when winding when mandrel is reeled, mandrel can prevent to be bent under the tension force effect of winding, so can obtain stable winding-structure reliably by simple layout.

To the detailed description of the preferred embodiments of the present invention, can know above and other objects of the present invention, feature and advantage more in conjunction with the drawings.

Description of drawings

Fig. 1 be use according to the first embodiment of the present invention around mandrel reel the film processing of method and apparatus of a winding and the diagrammatic elevation view of cutting machine;

Fig. 2 is the block diagram at the control circuit of the film winding device of film processing shown in Figure 1 and cutting machine;

Fig. 3 is the figure that has shown the tension force command value in the control circuit of the film winding device of film shown in Figure 1 processing and cutting machine and be used to supply with the relation between the speed value of film;

Fig. 4 is the front view of film winding device according to a second embodiment of the present invention;

Fig. 5 is the perspective view of a mandrel rotating mechanism of above-mentioned film winding device;

Fig. 6 is the plan view of above-mentioned mandrel rotating mechanism;

Fig. 7 is the first module body of a film winding mechanism and the perspective view of block wrapper;

Fig. 8 is the side view that has shown the block wrapper;

Fig. 9 is the perspective view of the coiling roll unit of above-mentioned film winding device;

Figure 10 is the perspective view of the cutting mechanism of above-mentioned film winding device;

Figure 11 is that the film that has shown elongation begins around the view of the mode of a mandrel coiling;

Figure 12 is the view that has shown above-mentioned coiling roll unit d/d mode from the mandrel;

Figure 13 has shown a side wrapper d/d view from the mandrel;

Figure 14 has shown a top wrapper d/d view from the mandrel;

Figure 15 has shown the view of the film of elongation around the mandrel coiling;

Figure 16 has shown by the film of elongation around the mandrel view that the film reel form is removed of reeling;

Figure 17 is the view that has shown from the film of above-mentioned film reel cutting elongation;

Figure 18 is to be reeled to make the view of described film in the end that has shown the film of the elongation that is cut;

Figure 19 has shown that the elongation film is not used the perspective view of block wrapper by coiling around mandrel;

Figure 20 has shown that the elongation film is used the perspective view of block wrapper by coiling around mandrel;

Figure 21 is the view of another coiling roll unit;

Figure 22 is the perspective view that forms a film by the winding of reeling around mandrel.

The specific embodiment

Fig. 1 be according to comprising of the first embodiment of the present invention film processing of film (winding) coiler device 10 and the signal front elevation of cutting machine 12.

Film processing and cutting machine 12 have the film feed device 18 that is used to rotate film reel 14, each film reel has a PET (mylar) film, TAC (tri acetyl cellulose) film, PEN (PEN) film or a form (being called as " film reel " below) as the sensitization reel of the photographic printing sheet of substrate, simultaneously the film raw material (winding raw material) 16 of carrying an elongation is kept a backward pull suitably; One is used for the film raw material of elongation is transported to continuously the feedway 20 of next step; Cutting is transferred the cutter sweep 26 of the film raw material of the elongation that device 20 carries, its film raw material for a plurality of elongations laterally is spaced a distance and cuts film edge down from the film blank, so film (winding of the elongation) 24a that produces a plurality of elongations with given width is to 24d (in first embodiment, having four elongation films from 24a to 24b); Film winding device 10, be used for will elongation film 24a reel and the film 24a that extends be cut into given length to 24d to 28d to 24d round separately mandrel 28a, so the film product of generation from 30a to 30d; And edge processing unit (plant) 34 is used to handle the unwanted edge (film edge) 32 under cutting out from the film raw material 16 of elongation.

Film feed device 18 has a gyroaxis 36, supports a pair of film reel 14 by gyroaxis 36 and carries out the transposition campaign.Film reel 14 can be by the debatching selectively of a debatching motor (not shown).Feedway 20 has a suction drums (reference roller) 38 and an a plurality of roller 40 as a main feed roller.Suction drums 38 is controlled the speed of rotation according to a preassigned pattern by the peripheral speed of servomotor (describing later) generation.A decoder 41 is connected on the axle (not shown) of above-mentioned suction drums 38.

Being arranged in the film reel 14 of work and the roller 40 between the suction drums 38 one and a tension feeler (tension pick-up) 42 is associated.Tensioning degree at the film between film reel 14 and the suction drums 38 is controlled by a tension feeler 42 and the debatching motor on the axle that is installed in film reel 14.Near gyroaxis 36, being provided with an EPC (marginal position control) sensor 44 engages with the position of regulating this end and one with the position of an end of the film raw material 16 that is used to survey elongation and inhales platform 46 and be connected to head end from the film raw material 16 of the new elongation of another film reel 14 with the tail end that is used for film raw material 16 that will elongation.

Cutter sweep 26 has cutter 48a, the 48b of a plurality of rotations, is positioned at the cutting position corresponding to the film width that will obtain selectively, is used for the film raw material in laterally spaced distance cutting elongation.Cutter sweep 26 comprises: separate each other to 24d with the film 24a of the elongation that is used to make cutting at separation roller 50a, the 50b of its underpart.Film winding device 10 is arranged on the downstream of separating

roller

50a, 50b, is inserted with roll to 52a, 52b in the middle of them.

In Fig. 1, have two left sides and right film winding device 10, be associated to 24d with the film 24a of elongation.Film winding device 10 has one and is used to keep and rotates the mandrel rotating mechanism 58 of mandrel 28a to 28d, a plurality of block wrappers (winding mechanism) 60 are used for the elongation film 24a of given length is reeled round mandrel 28a to 28d and forms film 30a to 30d to 24d, a product receiving mechanism 64 is used for holding the circumferential outer surface of the film 24a of the elongation of reeling round mandrel 28a to 28d to 24d at the film 24a that a specific tension force is applied to elongation in 24d, and product maintaining body 64 is relatively moved from block wrapper 60; Cutting mechanism 66 is used for laterally cutting the film 24a of elongation to 24d to 24d in by 64 tensionings of product receiving mechanism at the film 24a of elongation; And a mandrel feed mechanism 68 is used for automatically mandrel 28a being supplied to block wrapper 60 to 28d.

The operation and the structure of film processing and cutting machine 12 will briefly be described below.

A film reel 14 that is installed on the film feed device 18 is supplied on the suction drums 38 of feedway 20 with the film raw material 16 with an elongation by a not shown debatching motor debatching.According to the speed of the given velocity mode control suction drums 38 that provides by servomotor, will be described and survey the length (length of the film raw material of elongation when reeling) of the film raw material of elongation when carrying later on by decoder 41.

The film raw material 16 that carries out the described elongation of speed governing by suction drums 38 is fed on the cutter sweep 26.The cutting tool 48a of rotation, 48b be rotated with the edge cuts of film raw material 16 that will elongation fall and the film 24a that produces four elongations to 24d, they are fed in the film winding device 10.

In film winding device 10, at mandrel 28a when the circumferential outer surface of 28d is maintained by block wrapper 60, suction drums 38 be rotated and mandrel 28a to 28d by 58 rotations of a mandrel rotating mechanism.The film 24a of elongation is reeled to 28d round mandrel 28a respectively now to 24d.After block wrapper 60 and separately mandrel 28a were spaced apart to 28d, the film 24a of elongation was wound up into a given length to 24d round mandrel 28a to 28d, with generation film 30a to 30d.

Product receiving mechanism 64 is elevated keeping film 30a to 30d, and the film 24a that described product receiving mechanism 64 extends in debatching is lowered during to 24d.Cutting mechanism 66 activated so that the direction (transverse cuts) along the film 24a that is transverse to elongation to 24d is cut the film 24a of elongation to 24d.Now, can obtain including the product of film 30a, and they are supplied to next procedure to 30d.Block wrapper 60 is automatically supplied with new mandrel 28a to 28d and restart next winding process.

Be adjusted to a suitable level unless be applied to elongation film 24a to the tension force of 24d, when they are reeled as mentioned above, elongation film 24a to 24d can owing to excessive tension force damaged or the film 30a that obtains at last to 30d can be easy to released or the generation edge concavo-convex or uneven.According to first embodiment, can avoid these defectives by following layout and control film winding device 10:

Fig. 2 has shown the block diagram of the control circuit 1000 of film winding device 10.Control circuit 1000 has rotary speed that a speed control 1002 is used to control suction drums 38 and speed and torque controller (mandrel rotating control assembly) 1004a and is used for being controlled at rotary speed and the torque of the mandrel 28a of mandrel rotating mechanism 58 to 28d to 1004d.

A processing controls computer 1008 that is connected on the supervisory computer 1010 is connected on the control circuit 1000 by an input block 1006.The process control that processing controls computer 1008 is carried out at film winding device 10.Film is handled and the processing controls computer 1008 that cutting machine 12 has with process is relevant separately.Supervisory computer 1010 is used as all processing controls computers 1008 of processing of management film and cutting machine 12.

A motor driver 1014 is connected on the speed control 1002 by an output unit 1012.Motor driver 1014 also is connected on the servomotor 1016 to be used to rotate suction drums 38.For speed control 1002, be connected with a speed value memory 1018 to be used to store a speed value from processing controls computer 1008.Control servomotor 1016 according to the speed value that is stored in the speed value memory 1018.

Motor driver 1026a be connected to the output unit 1024a of 1026d by separately to 1024d separately speed and torque controller 1004a to 1004d.Motor driver 1026a goes up the film 24a that extends to be used for reeling round mandrel 28a to 28d to 24d to the servomotor 1028a that 1026d is connected to separately to 1028d.For speed and torque controller 1004a to 1004d, be connected with separately speed value memory 1030a to 1030d be used to store from the speed value of processing controls computer 1008 and torque conversion unit (torque conversion device) 1034a by separately to 1034d be connected with separately winding tension command value memory (winding tension storage device) 1032a to 1032d to be used to store winding tension command value from processing controls computer 1008.According to from speed and torque controller 1004a to the speed value of 1004d with by the winding tension command value of torque conversion unit 1034a to the conversion of 1034d, control servomotor 1028a to 1028d.

The control procedure of the film winding device of being carried out by control circuit 1,000 10 will be described below:

Reel before elongation film 24a begins to the process of 24d the winding tension command value that processing controls computer 1008 stores predefined speed value and sets in advance in to 1030d, winding tension command value memory 1032a to 1032d at speed value memory 1018, speed value memory 1030a at film winding device 10.

Fig. 3 shown at an upper portion thereof be used for the speed value of servomotor 1016 and the relation between the time in being stored in speed value memory 1018, and Fig. 3 has shown that in its underpart being stored in winding tension command value memory 1032a being used in the 1032d extends film 24a to the winding tension command value of 24d and the relation between the time.Speed value memory 1030a has stored to 1030d and has been used for the constant speed value of servomotor 1028a to 1028d.

Speed and torque controller 1004a read constant speed value to 1004d from speed value memory 1030a to 1030d, supply to servomotor 1028a and go up with rotation mandrel 28a to 28d to 1028d according to driving signal by motor driver 1026a to 1026d to the speed value of 1024d from output unit 1024a.

Torque conversion unit 1034a reads in the constant winding tension command value T1 that shows among Fig. 3 to 1034d from winding tension command value memory 1032a to 1032d, constant winding tension command value T1 is converted to a torque instruction value, and this torque instruction value is supplied to speed and torque controller 1004a to 1004d.Speed and torque controller 1004a to 1004d control motor driver 1026a to 1026d with from torque conversion unit 1034a under the torque instruction of 1034d rotating servo motor 1028a to 1028d.

After mandrel rotating mechanism 58 has been adjusted to above-mentioned state, speed control 1002 reads a speed value and supplies on the servomotor 1016 so that rotation suction drums 38 by motor driver 1014 according to driving signal from the speed value of output unit 1012 with one at time t1 from speed value memory 1018.Suction drums 38 is accelerated from time t1 to t2 and then is transported in the film winding device 10 with the film raw material 16 with elongation with 1 rotation of a constant speed v.

Be sucked film 24a that elongation film raw material 16 devices to be cut 26 that cylinder 38 carries cut into four elongations to 24d, film 24a is fed into again on the mandrel rotating mechanism 58 of film winding device 10 to 24d.Then, elongation film 24a begins round being begun to reel to 28d to the mandrel 28a of 1028d rotation by servomotor 1028a to 24d.Because servomotor 1028a is controlled to produce a torque value that equals a constant torque command value to 1028d, this constant torque command value can obtain by changing above-mentioned constant winding tension command value T1, constant torque T1 be applied to elongation film 24a to 24d when they are reeled round mandrel 28a to 28d.

Then, speed control 1002 reads a speed value from speed value memory 1018, with suction drums 38 is accelerated to v6 from speed v1 in a time period from time t3 to time t6, will extend film 24a and be transported on the film winding device 10 to 24d.

Torque conversion unit 1034a is converted to torque instruction value to 1034d with the winding tension command value, this winding tension command value is increased to the winding tension command value T3 that determines to the length of 28d according at the time period inner spindle 28a from a time t4 to time t5 gradually from a winding tension command value T1 who reads to the 1032d at winding tension command value memory 1032a, time t4 to the time period of time t5 be definite to the length of 28d according to mandrel 28a.Speed and torque controller 1004a supply to torque instruction value motor driver 1026a then to 1004d and go up with control servomotor 1028a to 1028d to 1026d.So under T3, elongation film 24a is reeled round mandrel 28a to 28d to 24d at the winding tension command value T1 that increases gradually.

When reaching time t5, speed and torque controller 1004a to 1004d will reduce torque instruction value from value gradually corresponding to winding tension command value T3 and the elongation film 24a that reels to 24d.

At this time durations, servomotor 1016 is reduced the acceleration of carrying elongation film raw material 16 gradually according to the instruction from speed control 1002.When time t6, be set to constant speed value v2 from the speed value of speed control 1002.Constant speed value v2 is held up to time t7 with at the speed value v1 that after this is reduced at time t8 and at 0 of time t9.

During time period from time t5 to time t9, speed and torque controller 1004a reduce torque instruction value gradually to 1004d, be reduced to corresponding to the value of winding tension command value T2 with at torque instruction value after this from value and be set to value corresponding to winding tension command value T1 corresponding to winding tension command value T3.

So be applied to elongation film 24a to the tension force of 24d is adjusted in the above described manner when, extend film 24a and reeled to 28d, thereby the film 30a that produces neat coiling be to 30d to 24d round separately mandrel 28a.

Specifically, when elongation film 24a begins round separately mandrel 28a when 28d is reeled to 24d, be applied to and extend film 24a and remain on the lower value to the winding tension command value T1 of 24d.Because there is not big external force to be applied to mandrel 28a to 28d, above-mentioned mandrel 28a does not give enough rigidity by elongation film 24a to 24d to 28d, therefore so mandrel 28a is not bent to 28d, extends film 24a and neatly reeled to 28d to 24d round separately mandrel 28a.

When elongation film 24a to 24d round separately mandrel 28a when 28d is wound up into a length-specific, they give mandrel 28a to 28d with rigidity, make mandrel 28a can resist bending to 28d.Extend film 24a then and be converted into higher winding tension command value T3, elongation film 24a is reeled round mandrel 28a to 28d with higher speed to 24d, instability occurs and can not relax owing to becoming to the tension force of 24d.For long mandrel 28a to 28d, the elongation film 24a that reels under lower winding tension command value T1 is set to long value to the length of 24d, so long film 24a can reel round mandrel 28a to 28d to 24d, and can not make mandrel 28a to the 28d bending.

For short mandrel 28a to 28d, because short mandrel 28a has enough rigidity to 28d, the elongation film 24a that reels under lower winding tension command value T1 is set to short value to the length of 24d, is converted into higher winding tension command value T3 from lower winding tension command value T1 and can be set to higher value.So, can prevent to extend film 24a and when being reeled, be moved, and can fitly be reeled round mandrel 28a to 28d to 24d.

In first embodiment, when winding tension command value during from the value T1 value of being increased to T3, it increases gradually with certain ratio, and the unexpected variation that can not produce tension force.So elongation film 24a can be damaged by coiling round mandrel 28a to 28d to 24d.

After elongation film 24a has reached winding tension command value T3 to the tension force of 24d, extend film 24a and when tension force reduces, reeled to 24d.Under this mode, elongation film 24a can be moved by coiling and film 30a can not be interfered to the end of 30d or can not produce convex-concave to 24d, so film 30a is maintained at the state of the coiling that is very neatly arranged to 30d.

Being stored in the winding tension value of winding tension command value memory 1032a in the 1032d can be respectively be set at value separately and is independently controlled to 30d separately film 30a.

Example under given conditions will be described below.

First example

Elongation film 24a with width of 1220mm is that 1220mm, external diameter are that 3 cun mandrel 28a is to 28d to 24d round length, elongation film 24a is winding to one 8 meters length (about 30 enclose) to 24d under tension force T1=7.84N/100mm, then will extend film 24a when tension force is increased to tension force T3=17.64N/mm from T1 is wound up into 10 meters to 24d.So when reducing tension force T3 gradually with 20% ratio, elongation film 24a is winding to 61 meters to 24d, produces film 30a to 30d.The number of turns of reeling under lower tension force T1 is approximately 15% of number of total coils.

In first example, although mandrel 28a is elongated and is bent easily that to 28d film 30a is to the concavo-convex and uneven setting that is lower than 0.5mm of the end of 30d.Elongation film 24a is not moved to the 28d and is enough fitly reeled to 28d round mandrel 28a separately at mandrel 28a to 24d.

Second example

Elongation film 24a with width of 150mm is that 150mm, external diameter are that 3 cun mandrel 28a is to 28d to 24d round length, elongation film 24a is to 24d reeled round mandrel 28a to 28d under tension force T1=7.84N/100mm half of an about circle, then continuation coiling when tension force is increased to tension force T3=24.5N/mm from T1.So when reducing tension force T3 gradually with 20% ratio, elongation film 24a is winding to 61 meters to 24d, produces film 30a to 30d.The number of turns of reeling under lower tension force T1 is approximately 0.5% of whole number of turns.

In second example, because mandrel 28a is short and is not easy to be bent to 28d, during from the beginning of winding process, elongation film 24a can be reeled under a high tension force to 24d, produce neat film 30a to 30d, elongation film 24a does not have disturbed or convex-concave and mobile to 24d.

Shown other example in the table 1 below.In these examples, mandrel 28a has the internal diameter of 73.7mm, the external diameter of 77.9mm to 28d, and than the length of elongation film 24a to the width little 0.5 to 1.0mm of 24d.By to as shown in Figure 1 the elongation film 24a of coiling can remain on the end of film concavo-convex or uneven in the scope of 0.5mm of permission to the setting of the length of 24d around mandrel 28a to 28d under low tension force T1 to the overall length of 30d with respect to film 30a.

Table 1

Axial film length	Coiling ratio under low-tension T1
Axial film length	Coiling ratio under low-tension T1	310mm	0.5％
381mm	0.5％	310mm	0.5％
381mm	0.5％	761mm	0.5％
838mm	0.5％	761mm	0.5％
838mm	0.5％	1220mm	1.5％

Fig. 4 has shown film according to a second embodiment of the present invention (winding) coiler device 10a.In the film winding device 10 similar modes according to first embodiment, film winding device 10a is integrated in film processing and the cutting machine 12.These identical with film winding device 10 among film winding device 10a parts are used identical Reference numeral, will be not described in detail below.

As shown in Figure 4, a roll comprises to 52a that the pad roller 54 and that is connected to a revolving actuator (not shown) can be shifted to or away from the roll 56 of pad roller 54.Pad roller 54 has its circumferential speed setting, so it is along the feed speed of the arrow B direction speed greater than suction drums 38.When being compressed against on the pad roller 54, roll 56 becomes to sandwich relation in the centre with

elongation film

24a, 24b, as elongation film 24a, when 24b is fed on the cutter sweep 26, on

elongation film

24a, 24b, apply certain force of strain, then do not extend on film 24a, the 24b in the downstream of roll 56 and apply tension force.

As shown in Figure 5, mandrel rotating mechanism 58 has two mandrel 28a that are provided with coaxially to each other, 28b, these two mandrel 28a, two guide rail 72a can be passed through in the position of 28b, 72b and adjust to be used for simultaneously round coiling mandrel 28a separately along the ball-screw 74 that the direction of arrow D (mandrel 28a, 28b axially) is extended, 28b reels and extends

film

24a, 24b.

As shown in Figure 5 and Figure 6, mandrel rotating mechanism 58 has two and is supported on two guide rail 72a, the movably pedestal 76a on 72b and the ball-screw 74,76b.At pedestal 76a movably, the 76b upper support the nut 78a that is screwed on the ball-screw 74, and 78b and servomotor 82a separately, 82b to be being used for by belt and pulley gear 80a, and 80b is rotation nut 78a separately individually respectively, 78b.

Cylinder body 84a, 84b are respectively fixed to movably pedestal 76a, and 76b is last and have therefrom outstanding bar 86a respectively, and 86b at bar 86a, is fixed with winding arm 88a separately, 88b on the 86b.

Mandrel fixture block

90a, 90b are rotatably installed in winding arm 88a separately, on the 88b.Mandrel fixture block 90a can be rotated by servomotor 92.

Servomotor 92 is fixedly installed to movably pedestal 76a, and 76b is last and have a driving shaft 94, is connected with swivelling pipe 98 by a belt and pulley gear 96 on driving shaft 94.Above-mentioned swivelling pipe 98 be supported on movably that pedestal 76a goes up and within it circumferential surface have keyway, and in above-mentioned keyway, cooperate a key axle 100 be installed.Key axle 100 rotatably is supported on the housing 102 that is fixed on the winding arm 88a.Mandrel fixture block 90a is connected to an end of key axle 100 by a belt and pulley gear 104.

As shown in Figure 7, block wrapper 60 moves separately along the indicated direction of arrow C in cell cube 200, and this arrow C direction is transverse to mandrel 28a, axial (direction that arrow D is indicated) of 28b.Cell cube 200 moves by the direction of drive unit 202 along arrow C.Drive unit 202 has the support 204 of a pair of direction space one specific range along arrow D.Servomotor 26 is installed at least one support 204.Servomotor 206 has a driving shaft 208, one ball-screws 212 and is connected on the above-mentioned driving shaft 208 by a belt and pulley gear 210.Ball-screw 212 is supported on the upper surface of support 204 with being rotated and the nut (not shown) by separately is spirally connected is installed on the movable body 214.Each movable body 214 is supported on the guide rail 216 on one that is installed in the support 204.

Cell cube 200 is movably fixed between movable body 214.Each block wrapper 60 can be fixed on the cell cube 200 on a winding position P1 and a retracted position P2 selectively.

As shown in Figure 8, can have last wrapper separately 300 that is installed on the pedestal 254 and the side wrapper 304 separately that is installed on the pedestal 254 by wrapper 60, and the described wrapper 300 of going up can vertically move by a lowering or hoisting gear 302, and described side wrapper 304 can flatly move by a mobile device 306.Lowering or hoisting gear 302 has one and is installed in the stay pipe 308 of the rectangle on the pedestal 254 and upwards vertical the extension, with an actuator with pressure regulatory function, above-mentioned actuator can have the form of a vertical cylinder body 310, for example, is fixed on the side plate of rectangle stay pipe 308.Cylinder body 310 has a upwardly extending bar 312, is fixed with vertically moving pedestal 314 on bar 312, and this pedestal 314 is supported on the guide rail 316 on another side plate that is fixedly mounted on rectangle stay pipe 308.Wrapper 300 is installed on the lower surface of the vertical distal portions of mobile foundation 314 on each.

Wrapper 300 has a block 317 that is fixed on the vertical mobile foundation 314 on each.Near mandrel 28a, the position of 28b has a guiding surface 318 to block 317 in its end, and it has than mandrel 28a, the radius curve that the radius curve of the external peripheral surface of 28b is big.At guiding surface 318 and mandrel 28a, define one between the 28b and be used to pass elongation film 24a, the gap 319 of 24b.The first and second free rollers (first and second pressure rollers) 320a, 320b are supported on the block 317 with being rotated and are positioned at and be used on the guiding surface 318

elongation film

24a, and 24b is pressed against mandrel 28a, on the external peripheral surface of 28b.The first and second free roller 320a, 320b by towards or away from mandrel 28a, 28b moves and can be compressed against mandrel 28a along the direction of arrow V2, on the 28b, the direction of this arrow V2 and elongation film 24a, the direction of the arrow V1 that 24b is tensioned is relative.

The first and second free roller 320a, 320b is symmetrical arranged with respect to the reference line LV of supposition, and reference line LV is parallel to the indicated elongation film 24a of arrow V1, and direction that 24b is tensioned is extended and is extended through mandrel 28a, the center of 28b.Specifically, the first and second free roller 320a, 320b is with respect to passing mandrel 28a, and the reference line LV that 28b extends equally axially is symmetrical arranged apart from K with one.

Mobile device 306 comprises an actuator, and this actuator has the form of the horizontal cylinder body 322 of band pressure regulatory function, and for example it is installed on the pedestal 254.Cylinder body 322 has a horizontally extending bar 324, is being fixed with a movable base 326 that is supported on the guide rail 328 of pedestal 254 on the bar 324, moves along the direction of arrow C indication being used for.Each side wrapper 304 is installed on the above-mentioned movable base 326.

Each side wrapper 304 has a block 329, and near mandrel 28a, the position of 28b has a guiding surface 330 to block 329 in its end, and it has than mandrel 28a, the radius curve that the radius curve of the external peripheral surface of 28b is big.At guiding surface 330 and mandrel 28a, define one between the 28b and be used to pass elongation film 24a, the gap 331 of 24b.The third and fourth free roller 332,334 is supported on the block 329 with being rotated and is positioned on the guiding surface 330.

Be set at as the 3rd free roller 332 of the 3rd pressure roller and pass mandrel 28a, on the line LH of the supposition that the diameter of 28b extends, line LH is perpendicular to the reference line LV of supposition.Be set up and mandrel 28a by roller 334 as four selfs that receive roller, the 28b contact, and basic with round mandrel 28a, the first and second free roller 320a of 28b, the relation that 320b one-tenth is relative.Four selfs are supported on the centering block 336 to be used for carrying out angular movement with respect to side wrapper 304 by roller 334.One abuts against on the centering block 336 to be used for reliably four selfs being held against mandrel 28a by roller 334 as the cylinder 338 of air spring, and on the 28b, even mandrel 28a, 28b has different slightly external diameters.

As shown in Figure 4, the coiling roll device 400 that is used as a winding mechanism is bonded to one in the face of on the position of block wrapper 60.As Fig. 4 and shown in Figure 9, coiling roll device 400 comprises coiling roll (pressure roller) 402 and following take up roll (pressure roller) 404, above-mentioned coiling roll 402 is faced to be used to compress and be supported on mandrel 28a mutually with the 3rd free roller 332, elongation film 24a on the circumferential outer surface of 28b, 24b, above-mentioned take up roll 404 down is used to make the elongation film 24a that is cut, and the end of 24b is along 28a, and the circumferential outer surface of 28b extends.For example, 14 coiling rolls 402 and 14 times take up rolls 404 are arranged along the direction of arrow D indication, are associated with separately block wrapper 60.

One upper plate 408 is fixed on the device body 406 of coiling roll device 400 and coiling roll 402 can be installed in the far-end of upper plate 408 separately rotatably.One lower plate 410 followingly moving on the guide rail 412 of linearity along the direction of arrow C being used for of being set at upper plate 408 movably.A pair of cylinder body 414 is fixed on the upper plate 408 and has the bar 416 that extends out from cylinder body 414, and above-mentioned bar 416 is fixed on the lower plate 410.

One swing arm 420 is supported on the far-end of lower plate 410 swingably by spring 418.Following take up roll 404 is rotatably installed in the far-end of swing arm 420.A pair of tooth bar 422 is fixed on the lower plate 410, and upper plate 408 has the opening 424 that limits therein, and above-mentioned opening 424 aligns with tooth bar 422 respectively.Pinion 426 is meshed with separately tooth bar 422 respectively by opening 424.Pinion 426 is by the support of bar 428 one.

Device body 406 is incorporated in the cutting mechanism 66.Shown in Fig. 4 and 10, cutting mechanism 66 comprises one by catching up with 432 cylinder bodies 430 that are installed in the no bar on the device body 406, and from mandrel 28a, 28b extends axially bar 432 along the indicated direction of arrow D.Base element 434 is fixed on the cylinder body 430 of no bar and along linear guides 436 and is directed towards the indicated direction of arrow D.A tooth bar 438 that keeps again simultaneously being meshed with second pinion 442 with 440 engagements of first pinion is parallel to linear guides 436 extensions.

The horizontal cutting blade 446 of a dish type is fixed on second pinion 442.One is used for guiding elongation film 24a, and the sorting guide rail 448 of 24b is set at the far-end of transverse cutting blade 446.

Elongation film

24a, 24b could only be cut or be used as cutter by transverse cutting blade 446 transverse cutting blade 446 and the bottom knife in the face of the cutter setting cut together.The cylinder body 430 of no bar can be replaced by a motor, Timing Belt and a plurality of pulley that is used for mobile foundation element 434.

Be supported on free roller 450 on the device body 406 be set at cutting mechanism 66 (see figure 4)s below.

As shown in Figure 4, product receiving system 64 has a vertically moving support 500, and it can be parked on four positions selectively by means of servomotor 502, promptly is parked in a upper end position, a middle spare space, a film cutting position and a lower end position.Servomotor 502 has a driving shaft 504, and this driving shaft 504 is operably connected on the vertical ball-screw 506, and this ball-screw 506 is installed on the vertically moving support 500 by the nut 508 that is spirally connected.

For vertically moving support 500, a cylinder body 510 with the bar 512 that is connected to the upright extension on the block 514 is installed.The first arm 516 extends upward and supports 518, one tensioning servomotors 520 of a distributing roller at its far-end from block 514 and is connected on this distributing roller 518 by a belt and pulley gear 522.Block 514 comprises that one has second arm 524 of free roller 526, and this free roller 526 is supported on the far-end of second arm 524 with being rotated.

Between first and second arms 516,524, be provided with a conveyer 528 that is used to discharge product.For vertical traversing carriage 500, be fixed with 530, one guide rollers 538 of cylinder body and be connected on the bar 532 by a swing arm 536 with a upwardly extending bar 532.

Mandrel feed mechanism 68 has the push rod 550 of a comb structure, its have with the block wrapper between the tooth that aligns of gap separately, be used for reposefully mandrel 28a, 28b supplies to a mandrel transfer position P3.

To describe the operation of film winding mechanism 10a below in detail.

As

elongation film

24a, 24b is round mandrel 28a, when 28b is reeled in film winding mechanism 10a, as shown in figure 11, mandrel 28a, 28b is placed on the winding position, mandrel 28a, the circumferential outer surface of 28b is clamped by block wrapper 60, mandrel 28a, the relative end of 28b is by

mandrel fixture block

90a, and 90b supports.

In coiling roll device 400, device body 406 is moved so that coiling roll 402 is moved to mandrel 28a, 28b, so will extend

film

24a, 24b is supported on mandrel 28a, on the circumferential outer surface of 28b.As shown in Figure 9, cylinder body 414 activated so that the direction of lower plate 410 towards arrow C 1 indication moved with respect to upper plate 408, make the following take up roll 404 that is installed on the lower plate 410 will extend film 24a, the leading end of 24b part is round mandrel 28a, the reel angular range of about 90 degree of 28b.

Then, suction drums 308 is rotated and the driving torque of servomotor 92 makes belt and pulley gear 104 begin to rotate

mandrel fixture block

90a, 90b, as illustrated in Figures 5 and 6.Mandrel 28a, 28b is rotated now will extend

film

24a, 24b is round mandrel 28a, and 28b reels and spends for one about 100, at this moment extends

film

24a, 24b is maintained (elongation film 24a by following take up

roll

404,24b is in fact round mandrel 28a, and 28b reels and spends for one about 270), after this, coiling roll 402 in coiling roll device 400 and following take up roll 404 and mandrel 28a, 28b spaced apart (referring to Figure 12).

Servomotor 92 is activated will extending

film

24a, and 24b is round mandrel 28a, 28b about 90 degree (about altogether 360 degree) of reeling again.After this, as shown in figure 13, away from mandrel 28a, 28b moves the side wrapper 38 of each block wrapper 60 by cylinder body

322.As elongation film

24a, 24b is in fact round mandrel 28a, a reel circle or more during multi-turn of 28b, as shown in figure 14, the last wrapper 300 of each block wrapper 60 upwards shrink by cylinder body 310 and roll 56 with fill up roller 54 separated opening.

As implied above, when as shown in figure 11, as

elongation film

24a, 24b is round mandrel 28a, and when 28b began to be reeled, the last wrapper 300 of winding mechanism, side wrapper 304, coiling roll 402 and following take up roll 404 were round mandrel 28a, and 28b is provided with.So, mandrel rotating mechanism 58 activated so that make mandrel 28a, thereby 28b will extend film 24a along the arrow E direction rotation among Figure 12,24b is round mandrel 28a, 28b reels, and making wrapper 300, side wrapper 304, coiling roll 402 and following take up roll 404 from mandrel 28a, 28b is last to be shunk continuously.

Specifically, at

elongation film

24a, 24b is round mandrel 28a, and 28b is from elongation film 24a, reels after about 180 degree in the position that 24b has been kept by take up roll 404 down, and coiling roll 402 and following take up roll 404 are separated on the 28b from mandrel

28a.At elongation film

24a, 24b is round mandrel 28a, and 28b was reeled after about 90 degree again, side wrapper 304 and mandrel 28a, and 28b

separates.At elongation film

24a, 24b is round mandrel 28a, in fact a reeled circle or more after the multi-turn (540 degree of approximately reeling) of 28b, last wrapper 300 also with mandrel 28a, 28b separates.

Therefore, when at elongation film 24a, when 24b begins to be reeled, extend film 24a, the leading end of 24b by block wrapper 60 first to four selfs by roller 320a, 320b332,334 press and support, and can be at block 317,329 and mandrel 28a, sagging in the gap 319,331 between the 28b.In other words, because

elongation film

24a, 24b is round mandrel 28a, 28b has only their leading end to be maintained on the position when reeling, can prevent to extend

film

24a, 24b is sagging under the effect of tensioning, thereby only just can produce the high-quality film 30a with desirable winding-structure, 30b reliably by simple steps.

Signal according to from decoder 41 output can be provided with the time that wrapper 300, side wrapper 304, coiling roll 402 and following take up roll 404 move, and this decoder 41 is connected on the suction drums 38 with roller for referencial use.Can accurately detect

elongation film

24a, 24b is round mandrel 28a, the reeling condition of 28b, can be according to the elongation film 24a that is detected, the state optimization wrapper of 24b and the contraction of roller can avoid extending film 24a so effectively, the 24b fault of must reeling.So,

elongation film

24a, 24b can be round mandrel 28a, and 28b is wound into a stable winding-structure, thereby produces high-

quality film

30a, 30b.

At

elongation film

24a, 24b is round mandrel 28a, when 28b is reeled by mandrel rotating mechanism 58, the cell cube 2000 that block wrapper 60 is installed by ball-screw 212 temporarily along one away from mandrel 28a, the direction motion of 28b, promptly move along the 1 indicated direction of the arrow C in Fig. 7, above-mentioned ball-screw 212 is rotated by a servomotor 206 by belt and pulley gear 210.As shown in figure 15, the push rod 550 of mandrel feed mechanism 68 maintains new mandrel 28a, and 28b also moves up, and with new mandrel 28a, 28b is placed on the mandrel transfer position P3.

As new mandrel 28a, when 28b was placed on the mandrel transfer position P3, along mandrel 28a, the block wrapper 60 of the some that the axial length of 28b is arranged was as one man moved to mandrel transfer position P3 each other by cell cube 200.After this, as shown in Figure 8, the cylinder body 3 10 of lowering or hoisting gear 302 activated so that go up take up roll 300 and descends with support mandrel 28a the top of 28b.Then, mandrel feed mechanism 68 discharges mandrel 28a, and 28b, the cylinder body 322 of mobile device 306 activated so that side wrapper 304 is moved forward so that support mandrel 28a, the sidepiece of 28b and bottom (referring to Figure 16).Push rod 550 is lowered, so with new mandrel 28a, 28b is sent on the block wrapper 60.

When at

elongation film

24a, 24b by mandrel rotating mechanism 58 round mandrel 28a, during length that 28b has reeled certain, as shown in figure 16, roll 56 is moved to pad roller 54, compress degree in the film path of upstream part and change, and product receiving mechanism 64 is raised.On product receiving mechanism 64,

film

30a, 30b are directed to roller 538, distributing roller 5 18 and free roller 526 and keep.Servomotor 502 is activated with swing roller leading screw 506, makes block 514 with

film

30a, and 30b drops to a perpendicular cuts position.During this time, because at elongation film 24a, film 30a in the time of the 24b debatching, 30b is lowered by, so

elongation film

24a, 24b is maintained under the tensioning state.

So drive unit 202 activated so that cell cube 200 is moved and new mandrel 28a along the direction of arrow C 2 forward, 28b is kept by mandrel rotating mechanism 58.Device body 406 is moved forward so that coiling roll 402 will extend

film

24a, and 24b is pressed against mandrel 28a, on the external peripheral surface of 28b.

So as shown in figure 10, the cylinder body 430 of the no bar of cutting mechanism 66 activated, and base element is as one man moved along the cross-directional of film therewith, promptly moves along arrow D indicated direction.Therefore, first pinion 440 and the second little tooth 442 that is meshed with first pinion are rotated so that make transverse cutting blade 446 along the rotation of the direction of arrow D with move, first pinion 440 is meshed with the tooth bar 438 that extends along the direction shown in the arrow D, thereby at elongation film 24a, when 24b is guided by sorting guide rail 448, longitudinally transverse cuts is extended

film

24a, 24b.

At elongation film 24a, after 24b was cut, as shown in Figure 9, cylinder body 414 activated will descend take up roll 404 to move along arrow C 1 indicated direction forward with lower plate 410.Therefore, as shown in figure 17, elongation film 24a, the cutting leading end part of 24b is round mandrel 28a, 28b about 90 degree of reeling.

So, as shown in figure 18,

elongation film

24a, 24b is round mandrel 28a, and 28b reels.On product receiving mechanism 64, servomotor 520 is activated so that product is rotated towards the direction of reeling, and will extend film 24a, and the incision tip of 24b is wound up into a length that is fit to.Product is accepted mechanism from product and is sent on the conveyer 528, and conveyer 528 supplies to next procedure with product.

In a second embodiment, as shown in Figure 8, the first and second free roller 320a, 320b is compressed against mandrel 28a, on the circumferential outer surface of 28b, and the first and second free roller 320a, the direction that 320b is oppressed, it is arrow V2 indicated direction, with coiling mandrel 28a, the elongation film 24a of 28b, the direction that 24b is tensioned, be the direction of arrow V1, toward each other.

So, the first and second free roller 320a, 320b can be applied to pressure mandrel 28a, and the last and balance of 28b is applied to mandrel 28a as the elongation film 24a that reels during 24b, the tension force of 28b, so prevented mandrel 28a reliably, 28b is bent.Like this, can prevent to extend film 24a, the unsettled transmission of 24b and can be reposefully and the mandrel 28a that reels reliably, 28b is to provide a stable winding-structure.

The first and second free roller 320a, 320b equates to the distance of the reference line LV of supposition, therefore, the first and second free roller 320a, 320b is supported on mandrel 28a securely, on the circumferential outer surface of 28b, with the first and second free roller 320a are installed, the block 317 of 320b no longer needs to rely on the rigidity of self, can keep gap 319 between the 28b reliably at block 317 and mandrel 28a like this.

Elongation film 24a like this, 24b can be along the gap 319 be reeled and can effectively be reached accurately reposefully and reeled.Four selfs by roller 334 round mandrel 28a, the 28b and the first and second free roller 320a, 320b is oppositely arranged substantially, so support mandrel 28a reliably, 28b.

The 3rd free roller 332 and coiling roll 402 are set on the reference line LH of supposition, and round mandrel 28a, 28b is oppositely arranged each other.Therefore, kept balance each other by the 3rd free roller 332 and coiling roll 402 applied pressures, to prevent mandrel 28a, 28b is bent along the reference line LH of supposition.

Corresponding to mandrel 28a, the block wrapper 60 of a predetermined quantity of the length of 28b is arranged on mandrel 28a, the axial direction of 28b, and pressure is applied to mandrel 28a, on the whole length of 28b.Therefore, pressure can be applied to mandrel 28a on whole axial length uniformly, and on the 28b, so mandrel 28a, it is linear that 28b can keep on whole length.Particularly, as shown in figure 19, if only by mandrel fixture block 90a, the mandrel mandrel 28a that 90b supports, 28b is rotated will extend film 24a by

mandrel rotating mechanism

58, and 24b is round mandrel 28a, 28b reels, and mandrel 28a, 28b are easy to the big bending of position generation therebetween., as shown in figure 20, as mandrel 28a, when 28b is rotated, at mandrel 28a, exert pressure by block wrapper 60 on the whole length of 28b, then mandrel 28a, it is linear that 28b can keep on its whole length, prevents to extend film 24a, and the winding-structure of 24b is disturbed.

By being arranged on block 317,329 and mandrel 28a, the size in the gap 319,331 between the 28b can make

elongation film

24a, and 24b is round mandrel 28a, and 28b is fitly reeled.Particularly, as elongation film 24a, the pedestal of 24b is when being made by PET, elongation film 24a, the thickness of 24b is 0.1mm, mandrel 28a, the external diameter of 28b are in the scope from 50mm to 90mm, gap 319,331 are positioned at the scope from 0.1mm to 0.8mm, promptly from elongation film 24a, the thickness of 24b can obtain a stable winding-structure in the scope of 0.8mm.When gap 319,331 is positioned at scope from 0.8mm to 1.2mm,

elongation film

24a, 24b can trend towards floating on the 28b from mandrel 28a.When the size in gap 319,331 during greater than 1.2mm, the state of coiling is unsettled, may cause the fault of coiling.Therefore, preferred gap 319,331 is positioned at from elongation film 24a, and the thickness of 24b is in the scope of 0.8mm.

In addition, according to second embodiment, the first and second free roller 320a are installed, the block 317 of 320b is by having the actuator of adjustable in pressure function, promptly vertical cylinder body 310, by towards or away from mandrel 28a, 28b

moves.As elongation film

24a, 24b is wound on mandrel 28a, during 28b, and elongation film 24a, tension force on the 24b is positioned at the scope from 9.8N (newton) to 29.4N (newton)/100mm film, and controlled by a torque that is produced by the servomotor 92 of mandrel rotating mechanism 58.Servomotor 92 can be replaced by the combination of the combination of the combination of an induction machine and dynamic braking, an induction machine and hysteresis cluth and a speed control motor and a floating roller.

The pressure of last wrapper 300 can be set to the value that equates with the mentioned strain value by an adjuster.For example, have the width of 100mm at block wrapper 60, cylinder body 300 has the 10mm diameter, and go up wrapper 300 have 4.9N (newton) weight situation under, if the tension value of film is 19.6N (newton)/100mm, can be 18.6*10 so go up the pressure of wrapper 300 ⁴Pa (Pascal).

Mandrel 28a, 28b is easy to have flexible zone at its axial direction.If for example, at mandrel 28a, the pressure of the block wrapper 60 that is provided with in the middle of the 28b is higher than the pressure of other block wrapper 60, mandrel 28a then, the warp architecture of 28b can accurately be proofreaied and correct.

If utilize one can control automatically one with elongation film 24a, the mechanism of the pressure that the tension value that is provided with when 24b reels is relevant, when tension force when laterally film size changes, can automatically change the size of horizontal film.By the control cylinder body 300 of block wrapper 60 separately independently, mandrel 28a, 28b can be oppressed so that in one direction can be slight curving, and this direction is opposite with the direction that is bent under tension force.Therefore, can more reliablely and stablely carry elongation film 24a as mentioned above, 24b and obtain stable winding-structure.

In a second embodiment, used coiling roll device 400., coiling roll device 400 also can be replaced by a coiling roll device 400a shown in Figure 21.Coiling roll device 400a has a cylinder body 570, is used to make coiling roll 402 to move along the indicated direction of arrow C.Cylinder body 570 has an extended from it bar 572 and is connected to movably on the upper plate 408a, coiling roll 402 in upper plate 408a upper support.When cylinder body 570 activated, coiling roll 402 can be with movably upper plate 408a be mobile together.

Elongation film 24a has been described as a winding to 24b.The present invention also is applicable to any other different winding, resin strip for example, paper etc.

According to the present invention, as mentioned above, winding begins to reel round mandrel under low tension force, after this reels under a tension force effect that increases under with a given ratio, then reels under the tension force effect that progressively reduces from high-tension value.Winding on the mandrel can not be damaged and film is in the state of neat coiling so be wound up into, and can not occur convex-concave and injustice at the end surfaces of film.

Be arranged on length that winding under the low-tension effect reeled round mandrel so that corresponding to the length of mandrel, so the danger that this mandrel can not occur being bent can be fitly reeled in winding round mandrel.

According to the present invention, when mandrel was provided with, this mandrel was rotated at a plurality of rollers and block, and from the zone of the leading end process of winding, above-mentioned roller and block shrink away from above-mentioned mandrel continuously.Therefore, have only the leading end of winding to be maintained on the circumferential outer surface of mandrel, and above-mentioned winding can be by not lax under the tension force effect of winding.So it is can be by simple process steps reliable and obtain to have the high-quality coiling product of desirable winding-structure effectively.

In addition, according to the present invention, also be provided with a pressure roller movably, this pressure roller is pressed against on the mandrel with the side that tension force applied of winding in the opposite direction along one, to remain on poised state with the tension force of winding with by pressure roller institute applied pressure.So, when winding when mandrel is reeled, mandrel can prevent to be bent under the tension force effect of winding, so can obtain stable winding-structure reliably by simple layout.

Although described in detail and shown specific preferred embodiment of the present invention, the those of ordinary skill of technical field of the present invention can carry out some improvement and variation not breaking away under protection scope of the present invention.

Claims

A winding roll film (24a, method 24b) comprises step:

With a plurality of roller (320a, 320b) at mandrel (28a, circumferential outer surface upper support winding (24a 28b), 24b), mandrel with rotating band gapped (319), this gap (319) by block (317) be defined carry block (317) and mandrel (28a, between circumferential outer surface 28b) with formation winding (24a, the passage that 24b) passes;

From winding (24a, leading end 24b) is the zone of process, above-mentioned roller (320a, 320b) and block (317) shunk from above-mentioned mandrel continuously; And

Winding (24a, 24b) round mandrel (28a 28b) is wound to after the few circle, from above-mentioned mandrel shrink all rollers (320a, 320b) and block (317).
2. method according to claim 1, it is characterized in that: according to determine to move above-mentioned roller (320a from the output signal of decoder (41), 320b) and the time of block (317), (24a, reference roller (38) 24b) is associated described decoder (41) with being used to supply with described winding.
One kind with winding (24a, 24b) round mandrel (28a, the device of 28b) reeling comprises:

Be used to rotate mandrel (28a, mandrel rotating mechanism (58) 28b);

Winding mechanism (60), be used for mandrel (28a, 28b) when rotation guiding round mandrel (28a, winding 28b) (24a, 24b);

Described winding mechanism (60) comprising:

Removable pressure roller is used for that (24a 24b) is pressed against mandrel (28a with winding, 28b) go up with winding (24a, (28a 28b) goes up and is used for being compressed against mandrel (28a along a direction 24b) to be supported on mandrel, 28b), above-mentioned direction is opposite with the direction of the tension force that applies above-mentioned at least winding; And

A plurality of movably blocks (317) are used for that (28a is formed for passing winding (24a, gap 24b) (319) between circumferential outer surface 28b) at movably block (317) and mandrel.
4. device according to claim 3, it is characterized in that, described pressure roller comprises the symmetrically arranged first and second pressure roller (320a of reference line with respect to supposition, 320b), described reference line be parallel to apply winding (24a, the indicated direction of tension force 24b) extend and pass mandrel (28a, extend at center 28b), (320a 320b) is rotatably installed in the described block (317) one described first and second pressure rollers.
5. device according to claim 4, it is characterized in that described block (317) has the actuator (310) of regulating the pressure function towards with (28a 28b) moves away from mandrel by one, (320a 320b) is rotatably installed on the described block (317) described first and second pressure rollers.
6. device according to claim 4 is characterized in that, described winding mechanism (60) also comprises:

Backing roll (334) is used for that (320a 320b) is bonded on the mandrel (28a is to 28d) with described first and second pressure rollers with becoming relativeness; And

The 3rd pressure roller (322) and coiling roll (400), they are arranged on passes described supposition reference line extension and passes mandrel (28a, on the supposition line that extend at center 28b), at their sandwich mandrel (28a, 28b), described the 3rd pressure roller (322) and described coiling roll (400) each other mutually near or away from moving.
7. device according to claim 3, it is characterized in that, described winding mechanism (60) comprises a plurality of at mandrel (28a, the winding mechanism of axially-aligned 28b) (60), be set at winding roll film (24a is in locational a plurality of winding mechanisms (60) 24b), according to mandrel (28a described, axial length 28b) only has the winding mechanism (60) of predetermined number.