CN110049856A - Longitudinal tensile fixture - Google Patents
Longitudinal tensile fixture Download PDFInfo
- Publication number
- CN110049856A CN110049856A CN201780076171.4A CN201780076171A CN110049856A CN 110049856 A CN110049856 A CN 110049856A CN 201780076171 A CN201780076171 A CN 201780076171A CN 110049856 A CN110049856 A CN 110049856A
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- Prior art keywords
- speed
- roller
- low speed
- thermoplastic film
- driven
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/12—Advancing webs by suction roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/192—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web motor-controlled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/90—Measuring, controlling or regulating
- B29C2037/903—Measuring, controlling or regulating by means of a computer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Longitudinal tensile fixture is provided, is able to suppress in the thermoplastic film in longitudinal stretching and generates transfer wound or scratch etc..Specifically, in the longitudinal tensile fixture (5) stretched through the circumferential speed difference between multiple driven at low speed rollers (8) and multiple high-speed driving rollers (9) to the thermoplastic film (F) after being heated using heating roller (13), multiple driven at low speed rollers (8) and multiple high-speed driving rollers (9) are constituted by having multiple as the low speed side suction hole (8b) of suction hole and the suction roll of high-speed side suction hole (9b) in the conveyance plane of thermoplastic film (F), multiple heating rollers (13) are provided between adjacent driven at low speed roller (8) and high-speed driving roller (9), multiple heating rollers (13) are respectively arranged with following with electric motor (15) as actuator, it is configured to separately carry out rotation driving to multiple heating rollers (13), longitudinal tensile fixture is controlled as making each chase after With consistent with according to each target value for being set with electric motor (15) of following with the output torque of electric motor (15).
Description
Technical field
The present invention relates to longitudinal tensile fixtures.Specifically, be related to heating thermoplastic film and along conveyance direction into
The longitudinal tensile fixture that row stretches.
Background technique
The thermoplasticity being made of in the past thermoplastic polymers such as polyester, triacetyl cellulose (TAC), polyolefin, polyamide
Film is widely used as supporting masses such as film for packaging, plate-making substrate, printing film, laminated film, magnetic recording media or CDs.?
Know that excellent physical property can be obtained by stretching in the thermoplastic films such as such polyester resin, is drawn usually as monadic stretching membrane or twin shaft
Stretch film carry out using.Above-mentioned biaxially-stretched film is manufactured and carrying out cross directional stretch after carrying out longitudinal be uniaxially stretched.
In the case where carrying out longitudinal stretching to thermoplastic film, using the speed difference of the high speed roller of the low speed roller and downstream side of upstream side
Streamwise is stretched.At this point, it has been known that there is following method, by expanding the low speed roller of upstream side and the high speed in downstream side
Interval (long spacing) between roller and the elongation for reducing film per unit time, stablize so as not to be broken thermoplastic film
Ground is stretched.Such as patent document 1 is recorded.
In longitudinal tensile fixture described in Patent Document 1, set between the low speed roller of upstream side and the high speed roller in downstream side
It is equipped with heating furnace, multiple transfer rollers are provided in heating furnace.The low speed roller that longitudinal tensile fixture is configured by expanding spacing
It is stretched with high speed roller to using the thermoplastic film after heating stove heating, and passes through multiple transfer rollers for the longitudinal direction of film
Fold extend, to prevent the corrugation of film and carry out stable stretching.But technology described in Patent Document 1 is by making heat
Plastic membrane contacts with multiple transfer rollers and fold is made to extend, therefore resistance when conveying is larger.Therefore, longitudinal tensile fixture according to
The mode for sliding thermoplastic film in high speed roller and low speed roller is .ed while pressing thermoplastic film by niproll
It is transported.Therefore, sometimes thermoplastic film due to niproll pressing force and on the surface generate transfer wound, or due to biography
It send the sliding between roller and generates scratch.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2008-221722 bulletin
Summary of the invention
Problems to be solved by the invention
The purpose of the present invention is to provide longitudinal tensile fixture, transfer is able to suppress in the thermoplastic film in longitudinal stretching
Wound or scratch etc. generation.
Means for solving the problems
The invention solves project as described above, being then illustrated to the means for solving the project.
That is, by multiple driven at low speed rollers and the circumferential speed multiple high-speed driving rollers bigger than the driven at low speed roller it
Between circumferential speed difference longitudinal tensile fixture that the thermoplastic film after being heated using heating roller is stretched in, it is the multiple low
Fast driven roller and the multiple high-speed driving roller are made of suction roll, which has in the conveyance plane of the thermoplastic film
Multiple suction holes are provided with multiple heating rollers between the adjacent driven at low speed roller and the high-speed driving roller, described more
A driven at low speed roller, the multiple high-speed driving roller and the multiple heating roller are respectively arranged with actuator, are configured to
Rotation drive separately is carried out to the multiple driven at low speed roller, the multiple high-speed driving roller and the multiple heating roller
Dynamic, the longitudinal tensile fixture is controlled as setting the output torque of each actuator with according to each actuator
Fixed target value is consistent.
In longitudinal tensile fixture, the actuator respectively via torque control device and with the multiple driven at low speed roller,
The multiple high-speed driving roller and the connection of the multiple heating roller, the longitudinal tensile fixture are constituted are as follows: are turned round in the output
In the case that the difference of square and the target value is bigger than specified value, generated between the input shaft and output shaft of the torque control device
Rotation speed is poor, so as to maintain the torque control device being connect with the actuator output shaft rotation speed, in the output
In the case that the difference of torque and the target value is smaller than specified value, in the input shaft for the torque control device being connect with the actuator
It is poor rotation speed is not generated between output shaft.
In longitudinal tensile fixture, the torque control device is made of powder coupling, the torque of the torque control device
Transmission capacity is controlled according to the target value.
Longitudinal tensile fixture is configured to separately carry out temperature control to the multiple heating roller.
Invention effect
As effect of the invention, effect as shown below is played.
In longitudinal tensile fixture, resistance when heating roller is to the conveying of thermoplastic film is smaller, and there is no need to drive in low speed
Thermoplastic film press by niproll to assign frictional force in dynamic roller and high-speed driving roller.In addition, independently carrying out
Sliding is not generated between the multiple heating rollers and thermoplastic film of drive control.Thereby, it is possible to inhibit the thermoplastic in longitudinal stretching
Property film in generate transfer wound or scratch etc..
In longitudinal tensile fixture, in the case where the conveying speed of thermoplastic film changes, heating roller and actuator
Control it is unrelated and follow thermoplastic film and rotated.Thereby, it is possible to inhibit to generate in the thermoplastic film in longitudinal stretching to turn
Print wound or scratch etc..
In longitudinal tensile fixture, according to conveying speed, the amount of tension of thermoplastic film, the rotation speed of heating roller is carried out
Control.Thereby, it is possible to inhibit to generate transfer wound or scratch etc. in the thermoplastic film in longitudinal stretching.
In longitudinal tensile fixture, thermoplastic film is stretched according to the stretch ratio of regulation, therefore does not allow to be also easy to produce speed
Degree changes.Thereby, it is possible to inhibit to generate transfer wound or scratch etc. in the thermoplastic film in longitudinal stretching.
Detailed description of the invention
Fig. 1 is the integrally-built skeleton diagram for showing an embodiment of the manufacturing device with longitudinal tensile fixture.
Fig. 2 is the integrally-built skeleton diagram for showing an embodiment of longitudinal tensile fixture.
Fig. 3 is the master of the driven at low speed roller for an embodiment for showing longitudinal tensile fixture and the structure of high-speed driving roller
View.
Fig. 4 is the main view of the heating roller for an embodiment for showing longitudinal tensile fixture and the structure of chill roll.
Fig. 5 is the block diagram for showing the control structure of an embodiment of longitudinal tensile fixture.
Fig. 6 is that the sliding of the heating roller for an embodiment for showing longitudinal tensile fixture inhibits the manner of execution under control
Schematic diagram.
Fig. 7 is the figure for the chart being shown below, the heating roller of an embodiment of the graph representation longitudinal tensile fixture
Sliding inhibit control under driving torque variation.
Specific embodiment
Firstly, use Fig. 1 to have as an embodiment of longitudinal tensile fixture of the invention longitudinal stretching dress
5 manufacturing device 1 is set to be illustrated.In addition, the manufacture of manufacturing device 1 is by polyester, triacetyl cellulose (TAC), polyolefin, polyamides
The thermoplastic film F that the thermoplastic polymers such as amine are constituted in the present embodiment is made of manufacture triacetyl cellulose (TAC)
The case where thermoplastic film F, is illustrated.
As shown in Figure 1, manufacturing device 1 thermoplastic polymer being made of triacetyl cellulose (TAC) is processed and
Manufacture the thermoplastic film F being made of desired film thickness.Manufacturing device 1 include melt extrusion apparatus 2, gap-like mould 3, Casting Roller 4,
Longitudinal tensile fixture 5, transversal stretching device 6 and devices for taking-up 7.
Manufacturing device 1 is squeezed the thermoplastic polymer heating melting of sheet and by melt extrusion apparatus 2 from gap-like mould 3
Out.Manufacturing device 1 makes the thermoplastic polymer continuously squeezed out from gap-like mould 3 be tightly attached to Casting Roller 4 and harden slabbing.That is, system
It makes device 1 and forms non-stretched thermoplastic film F from the thermoplastic polymer of sheet.In addition, manufacturing device 1 is filled by longitudinal stretching
5 are set to carry out continuously elongated to the non-stretched thermoplastic film F being formed continuously along conveyance direction (longitudinal direction) and form longitudinal draw
Thermoplastic film F after stretching.Then, manufacturing device 1 by transversal stretching device 6 in the width direction (transverse direction) to thermoplastic film
F continuously stretched and formed it is biaxial stretch-formed after thermoplastic film F.Manufacturing device 1 will be formed by heat by devices for taking-up 7
Plastic membrane F is wound on core material.
With this configuration, manufacturing device 1 can be continuously formed at from the thermoplastic polymer of sheet longitudinal direction and
Biaxial stretch-formed thermoplastic film F has been carried out in transverse direction.
Hereinafter, Fig. 2 to Fig. 5 is used to fill to as the longitudinal stretching of an embodiment of longitudinal tensile fixture of the invention
5 are set to be illustrated.Longitudinal tensile fixture 5 along conveyance direction (being denoted as " longitudinal direction " below) to non-stretched thermoplastic film F into
Row stretches.Longitudinal tensile fixture 5 includes multiple driven at low speed rollers 8, multiple high-speed driving rollers 9, suction pump 10, low speed with electronic
Motor 11, at a high speed with electric motor 12, multiple heating rollers 13, multiple chill rolls 14, multiple follow with electric motor 15, multiple powder
Last clutch 16 and control device 17.
As shown in Fig. 2, driven at low speed roller 8 and high-speed driving roller 9 together along the longitudinal direction to non-stretched thermoplastic film F into
Row stretches.Driven at low speed roller 8 is configured at the most upstream side of longitudinal tensile fixture 5.In the present embodiment, in longitudinal tensile fixture
Multiple driven at low speed rollers 8 are configured in 5.Driven at low speed roller 8 is metal roller, implement plating hard chrome processing, tungsten carbide spraying,
The surface treatment such as fluororesin cladding, ceramic coatings.Driven at low speed roller 8 is configured to wind thermoplastic film F according to the cornerite of regulation
In driven at low speed roller 8.
As shown in figure 3, in driven at low speed roller 8 as the face (hereinafter referred to as " conveyance plane ") contacted with thermoplastic film F
Low speed side conveyance plane 8a on be formed with perforation to multiple holes inside roller.In addition, driven at low speed roller 8 is configured to pass through suction pump
10 and roller inside is attracted (referring to the light ink color part in Fig. 2).Driven at low speed roller 8 is configured to remove low speed side as a result,
It send the hole of face 8a to play a role as low speed side suction hole 8b and absorption holding can be carried out to thermoplastic film F.
As shown in Fig. 2, high-speed driving roller 9 and driven at low speed roller 8 together along the longitudinal direction to non-stretched thermoplastic film F into
Row stretches.High-speed driving roller 9 is configured at the most downstream side of longitudinal tensile fixture 5.In the present embodiment, in longitudinal tensile fixture
Multiple high-speed driving rollers 9 are configured in 5.High-speed driving roller 9 is metal roller, implement plating hard chrome processing, tungsten carbide spraying,
The surface treatment such as fluororesin cladding, ceramic coatings.High-speed driving roller 9 is configured to wind thermoplastic film F according to the cornerite of regulation
In high-speed driving roller 9.
As shown in figure 3, high-speed driving roller 9 is formed with perforation extremely on the high-speed side conveyance plane 9a contacted with thermoplastic film F
Multiple holes inside roller.In addition, multiple high-speed driving rollers 9 are configured to attract (referring to Fig. 2 roller inside by suction pump 10
In light ink color part).Multiple high-speed driving rollers 9 are configured to attract the hole of high-speed side conveyance plane 9a as high-speed side as a result,
Hole 9b plays a role and can carry out absorption holding to thermoplastic film F.
Low speed electric motor 11 and high speed as actuator make multiple 8 Hes of driven at low speed roller with electric motor 12 respectively
The multiple rotation of high-speed driving roller 9 drivings.Low speed electric motor 11 and high speed electric motor 12 are respectively structured as and control dress
The vector frequency converter connection that 17 (referring to Fig. 5) are included is set, moment of torsion control is independently carried out.Low speed is with electric motor 11 via work
For torque control device powder coupling 16 and be respectively arranged at each driven at low speed roller 8, at a high speed with electric motor 12 via
Powder coupling 16 and be respectively arranged at each high-speed driving roller 9.That is, multiple low speed electric motors 11 can independently to
The driven at low speed roller 8 that they are connected carries out drive control.Similarly, multiple high speed electric motors 12 can independently to it
Multiple driven at low speed rollers 8 for connecting carry out drive control.
Each high-speed driving roller 9 carries out traction control for each driven at low speed roller 8.That is, each high-speed driving roller 9 is according to circumferential speed
The mode bigger than each driven at low speed roller 8 is spent to be driven.Thermoplastic film F is by multiple driven at low speed rollers 8 according to the unit of regulation
It lays out speed to lay out from upstream side, and by multiple high-speed driving rollers 9 according to the rule that lay out speed big than driven at low speed roller 8
Fixed unit is around entering speed towards downstream side around entering.Multiple driven at low speed rollers 8 and multiple high-speed driving rollers 9 are configured to as a result,
Between mutual spacing according to based on the defined unit for laying out speed around output with based on it is defined around enter the unit of speed around
The difference entered between amount stretches thermoplastic film F.
As shown in Fig. 2, heating roller 13 heats thermoplastic film F.The low speed that heating roller 13 is configured at most downstream side drives
Between dynamic roller 8 and the high-speed driving roller 9 of most upstream side.In the present embodiment, add in longitudinal tensile fixture 5 configured with multiple
Hot-rolling 13.Heating roller 13 is metal roller, implements plating hard chrome processing, tungsten carbide spraying, fluororesin cladding, ceramic coatings etc.
Surface treatment.Heating roller 13 is configured to thermoplastic film F being wound in heating roller 13 according to the cornerite of regulation.
As shown in figure 4, being respectively arranged in each heating roller 13: the cartridge heater 13b as heating unit；And add
Thermal temperature sensor 13c is measured to the temperature for the heating conveyance plane 13a of heating roller 13 contacted with thermoplastic film F
Temperature measurement unit.The cartridge heater 13b and heating temperature sensor 13c for being set to each heating roller 13 are configured to by coming
The heating conveyance plane 13a of heating roller 13 is separately heated to providing by the control signal of self-control device 17 (referring to Fig. 5)
Temperature and maintained.In addition, in the present embodiment, making the heating unit cartridge heater 13b of heating roller 13, but simultaneously
It is without being limited thereto, it is also possible to heating device, the induction heating dress of the circulation based on thermal mediums such as hot water, pressurized hot water, heating oil
It sets.
As shown in Fig. 2, chill roll 14 cools down thermoplastic film F.Chill roll 14 is configured at the heating roller of most downstream side
Between 13 and the high-speed driving roller 9 of most upstream side.In the present embodiment, multiple coolings are configured in longitudinal tensile fixture 5
Roller 14.Chill roll 14 is metal roller, implements the tables such as plating hard chrome processing, tungsten carbide spraying, fluororesin cladding, ceramic coatings
Surface treatment.Chill roll 14 is configured to thermoplastic film F being wound in each chill roll 14 according to the cornerite of regulation.
As shown in figure 4, multiple chill rolls 14 are respectively arranged with: the heat conducting pipe 14b as cooling unit；And cooling temperature
Sensor 14c is the temperature measurement list measured to the cooling conveyance plane 14a of chill roll 14 contacted with thermoplastic film F
Member.The heat conducting pipe 14b and cooling temperature sensor 14c for being set to multiple chill rolls 14 are configured to by carrying out self-control device 17
The control signal of (referring to Fig. 5) separately cools down the cooling conveyance plane 14a of each chill roll 14.In addition, in this reality
Apply in mode, make the cooling unit heat conducting pipe 14b of chill roll 14, but it is not limited to this, be also possible to based on piezoelectric element or
The cooling device etc. of the circulation of thermal medium.
Heating roller 13 and chill roll 14 is set to rotate driving with electric motor 15 as following for actuator.It follows with electronic horse
Each heating roller 13 and each chill roll 14 are respectively arranged at via the powder coupling 16 as torque control device up to 15.It follows
Be configured to connect with the vector frequency converter that control device 17 (referring to Fig. 5) is included respectively with electric motor 15 and separately
Carry out moment of torsion control.That is, it is multiple follow with electric motor 15 be configured to independently to heating roller 13 in connection or
Chill roll 14 carries out drive control.
As shown in Figure 3 and Figure 4, as multiple powder couplings 16 of torque control device to driven at low speed roller 8 and low speed
With transmitting torque, the heating roller between transmitting torque, high-speed driving roller 9 and the high speed electric motor 12 between electric motor 11
It 13 and follows with the transmitting torque or chill roll 14 between electric motor 15 and follows with the transmitting torque between electric motor 15
It is limited.Powder coupling 16 is by applying the magnetic powder (powder) being folded between input shaft 16a and output shaft 16b
Magnetic flux and generate friction, thus switch between input shaft 16a and output shaft 16b carry out torque transmitting state.In this reality
It applies in mode, in each powder coupling 16, multiple low speed electric motors 11, more is connected separately on its input shaft 16a
A high speed electric motor 12 or it is multiple follow with any one electric motor in electric motor 15, on its output shaft 16b
It is connected separately with any in multiple driven at low speed rollers 8, multiple high-speed driving rollers 9, multiple heating rollers 13 or multiple chill rolls 14
One roller.That is, each powder coupling 16 is configured to arbitrarily set between driven at low speed roller 8 and low speed electric motor 11
Transmitting torque, high-speed driving roller 9 and high speed between electric motor 12 transmitting torque, heating roller 13 and follow with electronic horse
Up to the transmitting torque or chill roll 14 between 15 and follow with the transmitting torque between electric motor 15.Each powder coupling 16
It is configured to connect with control device 17 (referring to Fig. 5) respectively, the size for transmitting torque can be controlled independently of each other.
As shown in figure 5, control device 17 controls longitudinal tensile fixture 5.Control device 17 be substantially by CPU,
The structure that ROM, RAM, HDD etc. are connected with bus, or can be the structure being made of LSI of monolithic etc..Control device 17 with
The control device of manufacturing device 1 (not shown) connects, and preserves various programs to be controlled longitudinal tensile fixture 5 etc.
Or data.
The high speed electricity consumption of the low speed electric motor 11 and each high-speed driving roller 9 of control device 17 and each driven at low speed roller 8
Dynamic motor 12 connects, and sends and driving torque phase respectively according to each low speed electric motor 11 and each high speed electric motor 12
The instruction value of pass and the mode for exporting arbitrary driving torque Td is controlled.In addition, control device 17 can be used from each low speed
Electric motor 11 and each high speed obtain practical driving torque with electric motor 12 respectively.
Control device 17 connect with suction pump 10 and can control suction pump 10.
Control device 17 needs and is set to each cartridge heater 13b and each heating temperature sensor of each heating roller 13
13c connection obtains the actual temperature of corresponding heating roller 13 from each heating temperature sensor 13c.In addition, control device 17 can
It is controlled in such a way that the instruction value for sending temperature to each cartridge heater 13b maintains defined temperature.
The needs of control device 17 are connect with each cooling temperature sensor 14c for being set to each chill roll 14, from each cooling temperature
Degree sensor 14c obtains the actual temperature of corresponding chill roll 14.
Control device 17 and each heating roller 13 follow following with electronic horse with electric motor 15 and each cooling driven roller
Up to 15 connection, can according to respectively follow with electric motor 15 sends instruction value relevant to driving torque respectively and export arbitrarily
The mode of driving torque Td controlled.In addition, control device 17 can be obtained respectively in fact from respectively following with electric motor 15
Border driving torque.
Control device 17 is connect with each powder coupling 16, can control into transmission finger relevant to arbitrary transmitting torque
Enable value and according to the state for carrying out torque transmitting below arbitrary transmitting torque between input shaft 16a and output shaft 16b.
The longitudinal tensile fixture 5 constituted in this way carries out absorption holding to thermoplastic film F by multiple driven at low speed rollers 8 on one side
Thermoplastic film F is laid out according to the unit sendout of regulation on one side.Longitudinal tensile fixture 5 will be from low speed by multiple heating rollers 13
The thermoplastic film F that driven roller 8 is laid out is heated to defined temperature.On the other hand, longitudinal tensile fixture 5 passes through multiple high speeds on one side
9 pairs of driven roller heated using heating roller 13 after thermoplastic film F carry out absorption keep on one side according to the unit of regulation around enter amount will
Thermoplastic film F is around entering.Longitudinal tensile fixture 5 around output and is based on regulation according to based on the defined unit for laying out speed as a result,
Longitudinal stretching is carried out to the thermoplastic film F after heating around the difference entered between amount around entering the unit of speed.Also, longitudinal stretching
Thermoplastic film F is cooled to defined temperature by multiple chill rolls 14 by device 5.Longitudinal tensile fixture 5 is by multiple driven at low speed
Space expansion between roller 8 and multiple high-speed driving rollers 9 and thermoplastic film F is stretched, so as to make thermoplastic film F's
Elongation per unit time tails off, to the load of film when can reduce stretching.In addition, in the present embodiment, actuator by
Comprising low speed electric motor 11, at a high speed with electric motor 12 and follow with the electric motor of electric motor 15 composition, but simultaneously
It is without being limited thereto, as long as driving device.
Hereinafter, using Fig. 3, Fig. 6 and Fig. 7, to the thermoplasticity in multiple driven at low speed rollers 8 and multiple high-speed driving rollers 9
14 pairs of hold mode and driven at low speed roller 8, multiple high-speed driving rollers 9, multiple heating rollers 13 and multiple chill rolls heat of film F
Mode when plastic membrane F is stretched is illustrated.In addition, in the present embodiment, longitudinal tensile fixture 5 includes four driven at low speed
8, three, roller, 9, four, high-speed driving roller heating roller 13 and four chill rolls 14, but it is not limited to this.
As shown in figure 3, multiple driven at low speed rollers 8 of the longitudinal tensile fixture 5 in present embodiment are entire by being formed in
The thermoplastic film F that the hole of conveyance plane is wound in each low speed side conveyance plane 8a to the cornerite according to regulation carries out absorption holding.That is,
Each driven at low speed roller 8 carries out absorption holding to the entire surface contacted with low speed side conveyance plane 8a in thermoplastic film F.Therefore, with
It carries out the case where pressing is kept by niproll to compare, each driven at low speed roller 8 can carry out thermoplastic film F with lesser pressure
It keeps.In addition, thermoplastic film F is pressed into low speed side conveyance plane 8a by the air as gas by each driven at low speed roller 8.Cause
This, compared with carrying out the case where pressing is kept by the niproll as solid, each driven at low speed roller 8 can utilize uniform pressure
Power keeps thermoplastic film F.That is, each driven at low speed roller 8 is not easy to generate local pressure concentration on thermoplastic film F.
The driven at low speed roller 8 of present embodiment carries out absorption holding to thermoplastic film F as a result, so as to inhibit thermoplastic film F's
Transfer wound is generated on surface.It is also same about multiple high-speed driving rollers 9.
Then, using Fig. 4, Fig. 6 and Fig. 7, to multiple driven at low speed rollers 8, multiple high-speed driving rollers 9, multiple heating rollers
13 and multiple chill rolls 14 in sliding inhibit control be illustrated.In addition, in the present embodiment, in heating roller 13
Sliding inhibits control to be illustrated, and is omitted to multiple driven at low speed rollers 8, the multiple high-speed driving rollers 9 similarly controlled
And the explanation of multiple chill rolls 14.
As shown in fig. 6, each heating roller 13 of the longitudinal tensile fixture 5 in present embodiment by thermoplastic film F according to the rules
Cornerite be wound in each heating conveyance plane 13a.Multiple heating rollers 13 are followed by connection with (the ginseng of electric motor 15
According to Fig. 4) in the way of following thermoplastic film F carry out rotation driving.That is, heating roller 13 is controlled as removing with thermoplastic film F
Send speed Vt synchronous.Thermoplastic film F is stretched along the longitudinal direction, to make to transport speed Vt on one side from driven at low speed roller 8
It is defined lay out speed and increase to the defined of high-speed driving roller 9 transported on one side around entering speed.Therefore, thermoplastic film F
It is different according to its transport path position to transport speed Vt.Therefore, multiple heating rollers 13 are configured to rotation speed Vr (circumferential speed
Degree) it is independently controlled so as to follow according to each configuration and the conveying speed Vt of different thermoplastic film F.
As shown in figure 4, multiple heating rollers 13 with via each powder coupling 16 (referring to Fig. 4) and what is connect follows use
Transmitting torque between electric motor 15 is restricted.In each powder coupling 16, input shaft 16a transmitting is followed with electronic
The driving torque Td of motor 15 transmits the rotation needed to rotate heating roller 13 according to the speed of regulation to output shaft 16b
Torque Tr.For powder coupling 16, when in the driving torque Td for being transferred to input shaft 16a and being transferred to output shaft 16b's
When generating the difference of specified value Tg or more between rotation torque Tr, input shaft 16a and output shaft 16b shift, in input shaft 16a
It is poor that rotation speed is generated between output shaft 16b.
A heating roller 13 for being configured at any position in multiple heating rollers 13 is according to true according to its rotation speed Vr
The consistent mode of conveying speed Vt of fixed circumferential speed and thermoplastic film F is followed to be rotated with electric motor 15 and drive.In heat
In the case where transporting speed Vt0 on the basis of the conveying speed Vt of plastic membrane F, following with electric motor 15 will be to make to be added according to one
The rotation speed Vr of hot-rolling 13 and the circumferential speed of determination and the conveying speed Vt of thermoplastic film F is consistent and the driving torque that needs
Td is controlled as benchmark driving torque Td0.
As shown in (a) of Fig. 6, the conveying speed Vt of thermoplastic film F be benchmark conveying speed Vt0, conveying speed Vt with
According to the rotation speed Vr of a heating roller 13 under the circumferential speed unanimous circumstances of determination, the rotation speed Vr of heating roller 13
The influence of transported thermoplastic film F is not will receive.
As shown in fig. 7, during until thermoplastic film F until transporting the time t1 that speed Vt0 is transported, transmitting
To the input shaft 16a and output shaft 16b of powder coupling 16 driving torque Td and be transferred to the rotation torque Tr of output shaft 16b
Respectively become benchmark driving torque Td0.That is, not generating regulation between the input shaft 16a and output shaft 16b of powder coupling 16
The difference of value Tg or more, therefore input shaft 16a and output shaft 16b are not deviated, each axis is rotated with identical rotation speed Vr
(referring to (a) of Fig. 6).As a result, heating roller 13 is followed transported thermoplastic film F and rotated, therefore can inhibit in thermoplastic
Property film F and the conveyance plane of heating roller 13 between generate sliding.
As shown in (b) of Fig. 6, in a heating roller 13, the conveying speed Vt of thermoplastic film F transports speed than benchmark
Vt0 is big and reaches than the rotation speed Vr according to a heating roller 13 and the feelings of the conveying speed Vt1 of the circumferential speed of determination greatly
Under condition, external force Fr1 is applied towards the direction for increasing the rotation speed Vr of heating roller 13 by thermoplastic film F.As a result, powder from
In the output shaft 16b of clutch 16, the rotation torque Tr for being transferred to output shaft 16b changes.For powder coupling 16, when
It is transferred to the driving torque Td of input shaft 16a and is transferred between the rotation torque Tr of the output shaft 16b of powder coupling 16 and produce
When the difference of raw specified value Tg or more, input shaft 16a and the phase of output shaft 16b shift, in input shaft 16a and output shaft
It is poor that rotation speed is generated between 16b.That is, the rotation speed Vr (circumferential speed) of a heating roller 13 is by coming from thermoplastic film F
External force Fr1 and increase to the i.e. rotation speed Vr1 of the consistent circumferential speed of conveying speed Vt1 with thermoplastic film F.Its result
It is that, although the conveying speed Vt of thermoplastic film F increases, a heating roller 13 is also by external force Fr1 and following thermoplastic film F makes to revolve
Rotary speed Vr increases, therefore can inhibit and generate sliding between thermoplastic film F and the conveyance plane of a heating roller 13.
As shown in fig. 7, about a driving followed with electric motor 15 for carrying out rotation driving to a heating roller 13
Torque T d, since the external force Fr1 from thermoplastic film F acts on the direction of the rotation of one heating roller 13 of help, thus the drive
Dynamic torque Td is reduced between time t2 to driving torque Td1 in time t1.When control device 17 detects that is followed an electricity consumption
When the driving torque Td of dynamic motor 15 is reduced, increased according to making reduce one to follow with the driving torque Td1 of electric motor 15
The mode added is controlled.That is, control device 17 is according to making the rotation speed Vr an of heating roller 13 reach rotation speed Vr1's
Mode controls (referring to (b) of Fig. 6) driving torque Td.Heating roller 13 is according to the conveying speed for following thermoplastic film F as a result,
The mode of degree Vt is rotated.
As shown in (c) of Fig. 6, in a heating roller 13, reach in the conveying speed Vt of thermoplastic film F than according to one
The rotation speed Vr of heating roller 13 and in the case where the small conveying speed Vt2 of the circumferential speed of determination, by thermoplastic film F to making
The direction that the rotation speed Vr of heating roller 13 reduces applies external force Fr2, makes the rotation for the output shaft 16b for being transferred to powder coupling 16
Torque Tr changes.When in the input shaft 16a for being transferred to powder coupling 16 driving torque Td and be transferred to powder from
When generating the difference of specified value Tg or more between the rotation torque Tr of the output shaft 16b of clutch 16, in powder coupling 16, input shaft
The phase of 16a and output shaft 16b shift, and it is poor that rotation speed is generated between input shaft 16a and output shaft 16b.That is, one
Heating roller 13 makes rotation speed Vr (circumferential speed) be decreased to remove with thermoplastic film F by the external force Fr2 from thermoplastic film F
Send the consistent circumferential speed of speed Vt2 i.e. rotation speed Vr2.As a result, although the conveying speed Vt of thermoplastic film F becomes smaller,
One heating roller 13 follows thermoplastic film F also by external force Fr2 and rotation speed Vr is made to become smaller, therefore is able to suppress in thermoplasticity
Sliding is generated between film F and the conveyance plane of a heating roller 13.
As shown in fig. 7, about a driving followed with electric motor 15 for carrying out rotation driving to a heating roller 13
Torque T d, since the external force Fr2 from thermoplastic film F acts on the direction of the rotation of one heating roller 13 of obstruction, thus the drive
Dynamic torque Td is in time t3 to increasing to driving torque Td2 between time t4.When control device 17 detects that is followed an electricity consumption
When the driving torque Td of dynamic motor 15 increases, subtracted according to making increase one to follow with the driving torque Td2 of electric motor 15
Few mode is controlled.That is, control device 17 according to make the rotation speed Vr an of heating roller 13 as rotation speed Vr2's
Mode is controlled.Heating roller 13 is rotated in the way of the conveying speed Vt for following thermoplastic film F as a result,.
With this configuration, longitudinal tensile fixture 5 stretches thermoplastic film F according to the stretch ratio of regulation, therefore does not allow
It is also easy to produce speed fluctuation.In addition, longitudinal tensile fixture 5 is according to making multiple heating rollers 13 and multiple chill rolls 14 initiatively follow heat
The mode of plastic membrane F is controlled, therefore the resistance of heating roller 13 and chill roll 14 in the conveying of thermoplastic film F is smaller.Cause
This, longitudinal tensile fixture 5 is without pressing thermoplastic film F by niproll in driven at low speed roller 8 and high-speed driving roller 9
To assign the frictional force for inhibiting sliding.In addition, longitudinal tensile fixture 5 according to the conveying speed Vt of thermoplastic film F independently
Moment of torsion control is carried out to the rotation speed Vr of multiple heating rollers 13 and multiple chill rolls 14.In addition, in the conveying speed of thermoplastic film F
In the case that degree Vt changes, heating roller 13 or chill roll 14 are made by the effect of powder coupling 16 and followed with electronic horse
Control up to 15 is independently followed thermoplastic film F and is rotated.Therefore, longitudinal tensile fixture 5 will not be in heating roller 13 and heat
Sliding is generated between plastic membrane F.Thereby, it is possible to inhibit the production of transfer wound or scratch etc. in the thermoplastic film F in longitudinal stretching
It is raw.
More than, the longitudinal tensile fixture 5 in present embodiment uses powder coupling 16 as clutch, but is not limited to
This, as long as by transmitting moment of torsion control can be arbitrary value.In addition, longitudinal tensile fixture 5 is by making thermoplastic film F and adding
The heating conveyance plane 13a of hot-rolling 13 is contacted and is carried out alternately heating to thermoplastic film F in the way of per next face, but not
It is limited to this, can also be heated simultaneously from two in face of thermoplastic film F by the heating of the air heated nozzle of hermetic type.On
The embodiment stated only shows the mode of representative, and various changes can be carried out in the range of not departing from the purport of an embodiment
Shape is simultaneously implemented.In addition, sharp can of course implement in various manners, the scope of the present invention is shown by the record of claim, separately
Being had altered in the impartial meaning and range that outsourcing is recorded containing claim.
Label declaration
5: longitudinal tensile fixture；8: driven at low speed roller；9: high-speed driving roller；13: heating roller；8a: low speed side conveyance plane；
8b: low speed side suction hole；9a: low speed side conveyance plane；9b: high-speed side conveyance plane；15: following and use electric motor.
Claims (4)
1. a kind of longitudinal tensile fixture, pass through multiple bigger than the driven at low speed roller of multiple driven at low speed rollers and circumferential speed
Circumferential speed difference between high-speed driving roller stretches the thermoplastic film after heating using heating roller, wherein
The multiple driven at low speed roller and the multiple high-speed driving roller are made of suction roll, and the suction roll is in the thermoplastic film
Conveyance plane on have multiple suction holes,
Multiple heating rollers are provided between the adjacent driven at low speed roller and the high-speed driving roller,
The multiple driven at low speed roller, the multiple high-speed driving roller and the multiple heating roller are respectively arranged with actuator,
It is configured to separately to the multiple driven at low speed roller, the multiple high-speed driving roller and the multiple heating roller
Rotation driving is carried out,
The longitudinal tensile fixture be controlled as making the output torque of each actuator with according to each actuator and
The target value of setting is consistent.
2. longitudinal tensile fixture according to claim 1, wherein
The actuator respectively via torque control device and with the multiple driven at low speed roller, the multiple high-speed driving roller with
And the multiple heating roller connection,
The longitudinal tensile fixture is constituted are as follows: in the case where the difference of the output torque and the target value is bigger than specified value,
It is poor that rotation speed is generated between the input shaft and output shaft of the torque control device, to maintain the torsion connecting with the actuator
The rotation speed of the output shaft of square control device, in the difference of the output torque and the target value situation smaller than specified value
Under, it is poor between the input shaft and output shaft for the torque control device connecting with the actuator not generate rotation speed.
3. longitudinal tensile fixture according to claim 2, wherein
The torque control device is made of powder coupling, and the torque transmission capacity of the torque control device is according to the target value
And it is controlled.
4. according to claim 1 to longitudinal tensile fixture described in any one in 3, wherein
The multiple heating roller is configured to separately carry out temperature control.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-213894 | 2016-10-31 | ||
| JP2016213894A JP6622680B2 (en) | 2016-10-31 | 2016-10-31 | Longitudinal stretching device |
| PCT/JP2017/036207 WO2018079213A1 (en) | 2016-10-31 | 2017-10-05 | Longitudinal drawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110049856A true CN110049856A (en) | 2019-07-23 |
| CN110049856B CN110049856B (en) | 2022-03-22 |
Family
ID=62023484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780076171.4A Active CN110049856B (en) | 2016-10-31 | 2017-10-05 | Longitudinal stretching device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6622680B2 (en) |
| KR (1) | KR20190076016A (en) |
| CN (1) | CN110049856B (en) |
| WO (1) | WO2018079213A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352586A (en) * | 2021-06-15 | 2021-09-07 | 广东金明精机股份有限公司 | Vacuum metal stretching roller for longitudinal stretching of film |
| EP3854568A3 (en) * | 2020-01-21 | 2021-11-03 | HOSOKAWA ALPINE Aktiengesellschaft | Apparatus and method for monoaxial change in the length of film webs |
| CN113686243A (en) * | 2021-08-24 | 2021-11-23 | 凌云光技术股份有限公司 | Method for measuring relative stretching amount of printing material |
| CN113784844A (en) * | 2019-05-02 | 2021-12-10 | 汉高股份有限及两合公司 | Method for bonding flexible films and device for carrying out said method |
| RU2776380C1 (en) * | 2020-01-21 | 2022-07-19 | ХОСОКАВА АЛЬПИНЕ Акциенгезелльшафт | Apparatus and method for providing uniaxial changes in the length of film sheets |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020007806A1 (en) * | 2020-03-20 | 2021-09-23 | Windmöller & Hölscher Kg | Stretching device and a method for stretching a plastic film in its transport direction |
| WO2023001961A1 (en) * | 2021-07-22 | 2023-01-26 | Windmöller & Hölscher Kg | Avoidance of scratches on the film |
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| WO2011125662A1 (en) * | 2010-03-31 | 2011-10-13 | 宇部興産株式会社 | Stretching device and method of manufacturing polyimide film using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113784844A (en) * | 2019-05-02 | 2021-12-10 | 汉高股份有限及两合公司 | Method for bonding flexible films and device for carrying out said method |
| EP3854568A3 (en) * | 2020-01-21 | 2021-11-03 | HOSOKAWA ALPINE Aktiengesellschaft | Apparatus and method for monoaxial change in the length of film webs |
| RU2776380C1 (en) * | 2020-01-21 | 2022-07-19 | ХОСОКАВА АЛЬПИНЕ Акциенгезелльшафт | Apparatus and method for providing uniaxial changes in the length of film sheets |
| CN113352586A (en) * | 2021-06-15 | 2021-09-07 | 广东金明精机股份有限公司 | Vacuum metal stretching roller for longitudinal stretching of film |
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| CN113686243A (en) * | 2021-08-24 | 2021-11-23 | 凌云光技术股份有限公司 | Method for measuring relative stretching amount of printing material |
| CN113686243B (en) * | 2021-08-24 | 2023-11-03 | 凌云光技术股份有限公司 | Method for measuring relative stretching amount of printing material |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190076016A (en) | 2019-07-01 |
| JP2018069639A (en) | 2018-05-10 |
| CN110049856B (en) | 2022-03-22 |
| WO2018079213A1 (en) | 2018-05-03 |
| JP6622680B2 (en) | 2019-12-18 |
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