CN103240870A - Synchronous bidirectional drawing machine for film - Google Patents

Synchronous bidirectional drawing machine for film Download PDF

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Publication number
CN103240870A
CN103240870A CN2013101843575A CN201310184357A CN103240870A CN 103240870 A CN103240870 A CN 103240870A CN 2013101843575 A CN2013101843575 A CN 2013101843575A CN 201310184357 A CN201310184357 A CN 201310184357A CN 103240870 A CN103240870 A CN 103240870A
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CN
China
Prior art keywords
pulley
film
circumferential
gyroscope wheel
machine
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Pending
Application number
CN2013101843575A
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Chinese (zh)
Inventor
张成耀
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GUANGZHOU POTOP EXPERIMENTAL ANALYSIS INSTRUMENT CO Ltd
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GUANGZHOU POTOP EXPERIMENTAL ANALYSIS INSTRUMENT CO Ltd
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Priority to CN2013101843575A priority Critical patent/CN103240870A/en
Publication of CN103240870A publication Critical patent/CN103240870A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a synchronous bidirectional drawing machine for a film. The synchronous bidirectional drawing machine comprises a rack, wherein a plurality of guide rolls for supporting the film to slide are arranged on the rack at intervals, two rotary wheels and driving mechanisms used for driving the two rotary wheels to do rotary movement are also arranged on the rack, the two rotary wheels are respectively distributed at two sides of the film along the sliding direction, an inner pulley and an outer pulley are respectively connected with two sides of each rotary wheel, a plurality of rigid wheels are hinged on the circumferential wall of each rotary wheel through hinges at intervals, a plurality of sliding clamps are arranged on the circumferential wall of each inner pulley, a plurality of sliding rings are arranged on the circumferential wall of each outer pulley, one end of each rigid chain is linked with the corresponding sliding ring on the adjacent outer pulley through a hinge, the other end of each rigid chain is linked with the corresponding clamp on the adjacent inner pulley through a hinge, when the film slides and passes through the circumferential walls of the two inner pulleys, the clamps on the two inner pulleys clamp the film which is in contact with the inner pulleys, and when the film is about to leave the circumferential walls of the two inner pulleys, the clamps on the two inner pulleys loosen the film which is in the contact with the two inner pulleys.

Description

Film synchronous bidirectional stretching-machine
Technical field
The present invention relates to a kind of film stretching former, specifically, it is stable to relate to a kind of stretching, stretching adjustable angle, and film synchronous bidirectional stretching-machine easy to adjust.
Background technology
Biaxially oriented film is a kind of Premium Features film of many uses, with high content of technology, can be widely used in key areas such as packing, battery diaphragm, has huge market development potentiality.The preparation method of biaxially oriented film mainly contains two kinds: one-step method and two-step method.The two-step method biaxial tension is that cross directional stretch (expanding) is being carried out on the basis of film longitudinal stretching, realizes the biaxial tension effect of film.Film longitudinal stretching Equipment Development is comparatively ripe, but the research of cross directional stretch equipment is ripe not enough with application, and equipment volume is huge, complex structure, expensive, has hindered the development of bidirectional thin.
Patent of invention (application number: 201120415245.2) disclose a kind of Kapton biaxial orientation stretching machine, its lateral separation of taking turns by rotating speed and the two strands of the board-like sprocket wheel of metering needle realizes the vertical and cross directional stretch to Kapton, though this mechanism is simple in structure, but be difficult to realize that serialization high-speed production, particularly cross directional stretch are very unstable.
Summary of the invention
At above deficiency, it is stable to the invention provides a kind of stretching, the stretching adjustable angle, and film synchronous bidirectional stretching-machine easy to adjust, it comprises frame, the deflector roll that several support films slide is installed on the described frame at interval, two gyroscope wheels also are installed on the described frame and drive two driving mechanisms that turn round the crop rotation gyrations respectively, two gyroscope wheels are distributed in the both sides of film line of travel, pulley and outer pulley in the both sides of each gyroscope wheel are connected with respectively, be hinged with several rigid chains by hinge at interval on the circumferential wall of each described gyroscope wheel, the circumferential wall of pulley was provided with several anchor clamps that can slide along its circumferential wall surface in each was described, the circumferential wall of each described outer pulley is provided with several slip rings that can slide along its circumferential wall surface, slip ring on the outer pulley that one end of each described rigid chain is adjacent by hinge links, anchor clamps on the interior pulley that the described rigid chain other end is adjacent by hinge links, when the film both sides slid past the circumferential wall of pulley in two, the anchor clamps on the two interior pulleys clamped the film that is in contact with it; When the film both sides were about to leave the circumferential wall of pulley in two, the anchor clamps on the two interior pulleys unclamped the film that is in contact with it.
Form angle between the line of travel of pulley and film in each is described.
Two interior pulleys are the both sides that are symmetrically distributed in the film line of travel.
Form angle between the interior pulley of same gyroscope wheel both sides and the outer pulley.
The interior pulley of same gyroscope wheel both sides is symmetrical distribution with outer pulley with respect to this gyroscope wheel.
The middle position of each described rigid chain is hinged on the circumferential wall of corresponding gyroscope wheel by hinge.
With same in the mid point of two rigid chains that link to each other of two adjacent anchor clamps on the pulley intersect, two rigid chains also schedule the circumferential wall of gyroscope wheel by same hinges fixing.
Described frame also is provided with the heater that the film to stretch section is incubated.
Described frame is separately installed with mobile seat corresponding to the position of each described gyroscope wheel, and two gyroscope wheels are installed on the corresponding mobile seat by bearing respectively, and the angle that forms between each gyroscope wheel and the film line of travel is adjustable by mobile seat.
The interior pulley of same gyroscope wheel both sides is installed on the gyroscope wheel by connecting rod respectively with outer pulley, the angle that forms between pulley and the gyroscope wheel in each is described is adjustable by connecting rod, and the angle that forms between each described outer pulley and the gyroscope wheel is adjustable by connecting rod.
Operation principle of the present invention:
Cross directional stretch: the film after the preheating enters interior pulley film feed points place by the guide effect of deflector roll, the anchor clamps of (circumferential wall of film and interior pulley begins position contacting) interior pulley become clamped condition by releasing orientation rapidly in this position, under the driving of gyroscope wheel and rigid chain, film is stressed to be carried to the right, owing to there is angle (forming angle between the line of travel of pulley and film namely) between two interior pulleys, interior pulley is along with the rotation of gyroscope wheel, distance between the anchor clamps on two interior pulley circumferential wall enlarges gradually, can realize the cross directional stretch of film, cross directional stretch is than realizing by the angle of regulating between two interior pulleys, angle is more big, and cross directional stretch is more wide.
Longitudinal stretching: the film of heating is because the clamping of anchor clamps, under the induced effect of gyroscope wheel and rigid chain, move right, owing to have angle between interior pulley and the outer pulley, rotation along with gyroscope wheel, distance between interior pulley and the outer pulley diminishes gradually (from film by clamp, beginning to break away from anchor clamps to film finishes), and the length of rigid chain is constant, its mid point is positioned on the gyroscope wheel all the time, the two ends of rigid chain constantly interior pulley (slip by anchor clamps realizes) and outside the circumferential wall of pulley (by the slip realization of slip ring) slide, cause same in distance between adjacent two anchor clamps of pulley increase, realize the longitudinal stretching of film, longitudinal stretching is than realizing by the angle between pulley in regulating and the outer pulley.
Beneficial effect of the present invention: pulley is the both sides that are symmetrically distributed in the film line of travel in of the present invention two, cooperation by the anchor clamps on the pulley circumferential wall in two realizes the cross directional stretch to film, and cross directional stretch is than realizing by the angle of regulating between two interior pulleys; In addition, pulley and outer pulley are symmetrical distribution with respect to gyroscope wheel in of the present invention, form angle between interior pulley and the outer pulley, begin to be broken away from this process of anchor clamps to film by clamp from film, distance between interior pulley and the outer pulley tails off gradually, and the length of rigid chain is constant, its mid point is positioned on the gyroscope wheel all the time, the two ends of rigid chain constantly interior pulley and outside the circumferential wall of pulley slide, cause same in distance between adjacent two anchor clamps of pulley increase, thereby realize the longitudinal stretching of film, and longitudinal stretching is than realizing by the angle between pulley in regulating and the outer pulley; Also have, compact conformation of the present invention, simple, easy to adjust quick to draw ratio in length and breadth, stable and reliable operation, the while can greatly reduce the manufacturing cost of equipment.
Description of drawings
Fig. 1 is the structural representation of film synchronous bidirectional stretching-machine of the present invention.
Fig. 2 is the scheme of installation of heater of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further set forth, wherein, direction of the present invention is standard with Fig. 1.
As shown in Figure 1, film synchronous bidirectional stretching-machine of the present invention comprises frame 8, several deflector rolls 2, two gyroscope wheels 31, two driving mechanisms 4, two interior pulleys 32, two outer pulleys 33, several rigid chain 51, two groups of anchor clamps 52, two groups of slip rings 53, several connecting rod 55, two mobile seats 7 and heater 6, all deflector rolls 2 are rotatably installed in frame 8 by bearing, be between the deflector roll 2 height, at interval, be arranged in parallel, film 1 slides to the right by deflector roll 2 support levels under the effect of external force.Two gyroscope wheels 31 are installed in respectively on two mobile seats 7 by bearing, and two mobile seats 7 are installed in the correspondence position of frame 8, and two gyroscope wheels 31 are distributed in the both sides of film line of travel.Pulley 32 and outer pulley 33 are connected the both sides of gyroscope wheel 31 respectively in every group by connecting rod 55, interior pulley 32 is positioned at the inboard of gyroscope wheel 3, outer pulley 33 is positioned at the outside of gyroscope wheel 3, two interior pulleys 32 are the both sides that are symmetrically distributed in the film line of travel, and form the angle (line of travel of circle side, interior pulley 32 places and film in each between the line of travel of pulley 32 and film, the following indication angle of this paper all refers to circle side and circle side, perhaps justify the angle that forms between side and the straight line), namely form angle between two interior pulleys 32, pulley 32 is symmetrical distribution with outer pulley 33 with respect to corresponding gyroscope wheel 31 in every group, and form angle between the interior pulley 32 of same gyroscope wheel 31 both sides and the outer pulley 33, place, the axle center straight line of two gyroscope wheels 3 and film slide plane (horizontal plane) and are parallel to each other, therefore, two gyroscope wheels 3 also are the both sides that are symmetrically distributed in the film line of travel, the side of two gyroscope wheels 3 (the round side of gyroscope wheel) forms angle with the film line of travel respectively, this angle is greater than zero degree, and smaller or equal to 90 degree.Driving mechanism 4 adopts motor to realize that two motors are separately fixed at the correspondence position of frame 8, and under the driving of two motors, two groups of interior pulleys 32 and outer pulley 33 are along with gyroscope wheel 3 is done synchronous turning anticlockwise motion.Being hinged on the circumferential wall of gyroscope wheel 3 by hinge respectively of all rigid chains 51, hinged by the middle position of rigid chain 51 generally speaking, and all pin joints equidistantly are distributed on the circumferential wall of gyroscope wheel 3.Two groups of anchor clamps 52 are separately positioned on the circumferential wall of two interior pulleys 32, and every group of anchor clamps 52 can slide along the circumferential wall surface of corresponding interior pulley 32, the anchor clamps 52 general suckers that adopt are realized, absorption clamping films by sucker, two groups of slip rings 53 are separately positioned on the circumferential wall of two outer pulleys 33, and every group of slip ring 53 can slide on the circumferential wall surface of pulley 33 outside correspondence.Slip ring 53 on the outer pulley 33 that one end of every rigid chain 51 is adjacent by hinge links, anchor clamps 52 on the interior pulley 32 that rigid chain 51 other ends are adjacent by hinge links, and with same in the mid point of two rigid chains 51 that link to each other of two adjacent anchor clamps 52 on the pulley 32 intersect, two rigid chains 51 also schedule the circumferential wall of gyroscope wheel 31 by same hinges fixing.Heater 6 is installed in the correspondence position of frame 8, utilize the film of 6 pairs of stretch sections of heater (two gyroscope wheel between a section) to be incubated, so that the ductility of film is better, drawing effect is better, further, in order to reach better heating effect, as shown in Figure 2, the one side towards film of heater 6 is formed with the deep-slotted chip breaker 61 similar to the shape of gyroscope wheel 31 circumferential wall, be that film heats in one section annular region that heater 6 and gyroscope wheel 31 form, and the width of this annular region can be regulated according to actual needs, heats more even.In the process that film 1 slides to the right, when film 1 both sides during through the circumferential wall of two interior pulleys 32, the anchor clamps 52 on two interior pulleys 32 clamp the film that is in contact with it; When the film both sides were about to leave the circumferential wall of two interior pulleys 32, the anchor clamps 52 on two interior pulleys 32 unclamped the film that is in contact with it.
Like this, when sliding to the right under the effect of film 1 in external force after the preheating, guide effect by deflector roll 2 enters in the anchor clamps 52 at film feed points place (dual-side of film 1 begins to contact the circumferential wall of two interior pulleys 32) of two interior pulleys 32, anchor clamps 52 become clamped condition by releasing orientation rapidly in this position, under the driving of gyroscope wheel 31 and rigid chain 51, film is carried by 1 stressed the continuation to the right, owing to have angle between two interior pulleys 32, interior pulley 32 is along with the rotation of gyroscope wheel 31, distance between the anchor clamps 52 on two interior pulley 32 circumferential wall enlarges gradually, can realize the cross directional stretch of film; Owing to have angle between interior pulley 32 and the outer pulley 33, rotation along with gyroscope wheel 31, distance between interior pulley 32 and the outer pulley 33 diminishes gradually (from film by clamp, beginning to break away from anchor clamps to film finishes), and the length of rigid chain 51 is constant, its mid point is positioned on the gyroscope wheel 31 all the time, the two ends of rigid chain 51 constantly interior pulley 32 and outside the circumferential wall of pulley 33 slide, cause same in distance between adjacent two anchor clamps 52 of pulley 32 increase, realize the longitudinal stretching of film, namely form the film 11 after the stretching among the figure.
Further, for the cross directional stretch ratio of realizing film can be regulated, mobile seat of the present invention 7 is installed on the frame 8 by existing micro-adjusting mechanism, it is adjustable by mobile seat 7 to be the angle that forms between pulley 32 (gyroscope wheel 31) and the film line of travel in each, so just can pass through the adjusting of the angle realization cross directional stretch ratio between two interior pulleys 32 of adjusting.
Further, for the longitudinal stretching ratio of realizing film can be regulated, connecting rod 55 of the present invention is installed in the both sides of gyroscope wheel 31 by existing micro-adjusting mechanism, the angle that is formation between each interior pulley 32 and the gyroscope wheel 31 is adjustable by connecting rod 55, the angle that forms between each outer pulley 33 and the gyroscope wheel 31 is adjustable by connecting rod 55, thereby passes through to regulate the interior pulley 32 of gyroscope wheel 31 both sides and the adjusting that the angle between the outer pulley 33 is realized the longitudinal stretching ratio.
The above only is preferred embodiments of the present invention, the present invention is not limited to above-mentioned embodiment, in implementation process, may there be local small structural modification, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.

Claims (10)

1. film synchronous bidirectional stretching-machine, it comprises frame (8), described frame (8) goes up the deflector roll (2) that several support films (1) slide is installed at interval, it is characterized in that, two gyroscope wheels (31) also are installed on the described frame and drive the driving mechanism (4) that two gyroscope wheels (31) are done gyration respectively, two gyroscope wheels (31) are distributed in the both sides of film line of travel, the both sides of each gyroscope wheel (31) are connected with interior pulley (32) and outer pulley (33) respectively, be hinged with several rigid chains (51) by hinge at interval on the circumferential wall of each described gyroscope wheel (3), the circumferential wall of pulley (32) was provided with several anchor clamps (52) that can slide along its circumferential wall surface in each was described, the circumferential wall of each described outer pulley (33) is provided with several slip rings (53) that can slide along its circumferential wall surface, slip ring (53) on the outer pulley (33) that one end of each described rigid chain (51) is adjacent by hinge links, anchor clamps (52) on the interior pulley (32) that described rigid chain (51) other end is adjacent by hinge links, when film 1 both sides slid past the circumferential wall of pulley in two (32), the anchor clamps (52) on the two interior pulleys (32) clamped the film that is in contact with it; When the film both sides were about to leave the circumferential wall of pulley in two (32), the anchor clamps (52) on the two interior pulleys (32) unclamped the film that is in contact with it.
2. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, forms angle between the line of travel of pulley (32) and film in each is described.
3. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, two interior pulleys (32) are the both sides that are symmetrically distributed in the film line of travel.
4. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, forms angle between the interior pulley (32) of same gyroscope wheel (31) both sides and the outer pulley (33).
5. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, the interior pulley (32) of same gyroscope wheel (31) both sides is symmetrical distribution with outer pulley (33) with respect to this gyroscope wheel (31).
6. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, the middle position of each described rigid chain (51) is hinged on the circumferential wall of corresponding gyroscope wheel (31) by hinge.
7. film synchronous bidirectional stretching-machine according to claim 1, it is characterized in that, with same in the mid point of two rigid chains (51) that link to each other of two adjacent anchor clamps (52) on the pulley (32) intersect, two rigid chains (51) also schedule the circumferential wall of gyroscope wheel (31) by same hinges fixing.
8. film synchronous bidirectional stretching-machine according to claim 1 is characterized in that, described frame (8) also is provided with the heater (6) that the film to stretch section is incubated.
9. film synchronous bidirectional stretching-machine according to claim 1, it is characterized in that, described frame (8) is separately installed with mobile seat (7) corresponding to the position of each described gyroscope wheel (31), two gyroscope wheels (31) are installed on the corresponding mobile seat (7) by bearing respectively, and the angle that forms between each gyroscope wheel (3) and the film line of travel is adjustable by mobile seat (7).
10. film synchronous bidirectional stretching-machine according to claim 1, it is characterized in that, the interior pulley (32) of same gyroscope wheel (31) both sides is installed on the gyroscope wheel (31) by connecting rod (55) respectively with outer pulley (33), the angle that forms between pulley (32) and the gyroscope wheel (31) in each is described is adjustable by connecting rod (55), and the angle that forms between each described outer pulley (33) and the gyroscope wheel (31) is adjustable by connecting rod (55).
CN2013101843575A 2013-05-17 2013-05-17 Synchronous bidirectional drawing machine for film Pending CN103240870A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962329A (en) * 2019-12-23 2020-04-07 武小侠 Biaxial stretching equipment is used in processing of lithium cell diaphragm
CN111216345A (en) * 2019-11-07 2020-06-02 湖南工业大学 Synchronous biaxial stretching device of film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060115548A1 (en) * 2003-01-15 2006-06-01 Innocente Marchante Moreno Simultaneous longitudinal and transverse film drawing device
WO2007110484A1 (en) * 2006-03-28 2007-10-04 Conenor Oy Transverse stretching device
CN203317739U (en) * 2013-05-17 2013-12-04 广州市普同实验分析仪器有限公司 Novel synchronous bidirectional drawing machine for thin film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060115548A1 (en) * 2003-01-15 2006-06-01 Innocente Marchante Moreno Simultaneous longitudinal and transverse film drawing device
WO2007110484A1 (en) * 2006-03-28 2007-10-04 Conenor Oy Transverse stretching device
CN203317739U (en) * 2013-05-17 2013-12-04 广州市普同实验分析仪器有限公司 Novel synchronous bidirectional drawing machine for thin film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111216345A (en) * 2019-11-07 2020-06-02 湖南工业大学 Synchronous biaxial stretching device of film
CN110962329A (en) * 2019-12-23 2020-04-07 武小侠 Biaxial stretching equipment is used in processing of lithium cell diaphragm

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Application publication date: 20130814