WO2023160341A1 - Dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants - Google Patents

Dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants Download PDF

Info

Publication number
WO2023160341A1
WO2023160341A1 PCT/CN2023/074083 CN2023074083W WO2023160341A1 WO 2023160341 A1 WO2023160341 A1 WO 2023160341A1 CN 2023074083 W CN2023074083 W CN 2023074083W WO 2023160341 A1 WO2023160341 A1 WO 2023160341A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
film
stretching
consistent
seat
Prior art date
Application number
PCT/CN2023/074083
Other languages
English (en)
Chinese (zh)
Inventor
梁达辉
汤智勇
何汉昭
Original Assignee
佛山市盟思拉伸装备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 佛山市盟思拉伸装备有限公司 filed Critical 佛山市盟思拉伸装备有限公司
Publication of WO2023160341A1 publication Critical patent/WO2023160341A1/fr

Links

Classifications

    • 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
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously

Definitions

  • the present application relates to the technical field of film processing, in particular to a film stretching device with consistent vertical and horizontal stretching ratios.
  • the film is in the appropriate temperature range above the glass transition temperature and below the melting point (in a high elastic state), through a stretching machine, under the action of an external force, stretching a certain number of times in the longitudinal and transverse directions, so that the molecular chain or crystal plane Orient and arrange in a direction parallel to the plane of the film, and then heat-set in a tensioned state to fix the oriented macromolecular structure, and finally the film can be produced after cooling and subsequent treatment.
  • the traditional film bidirectional synchronous stretching device includes two circular tracks and two transmission chain clips, and the two transmission chain clips are correspondingly arranged on the two circular tracks.
  • the circular track includes a preheating section, a stretching section, a setting section and a return section.
  • the preheating section, stretching section, shaping section and return section are connected end to end in sequence.
  • the positions of the preheating section, stretching section and shaping section of one circular track are in one-to-one correspondence with the positions of the preheating section, stretching section and shaping section of the other circular track.
  • the distance between the stretching sections of the two circular tracks gradually increases from front to back.
  • each circular track includes an inner rail and an outer rail disposed outside the inner rail. In the area of the stretching section, the distance between the inner rail and the outer rail gradually decreases from front to back.
  • a film stretching device with consistent vertical and horizontal stretching ratios said film stretching device with vertical and horizontal stretching ratios tending to be consistent includes: two circular tracks and two transmission chain clips, two The transmission chain clips are arranged on the two circular tracks one by one, and the clamps of the two transmission chain clips are used to clamp the opposite sides of the film; each of the circular tracks includes a synchronous stretching section, The two synchronous stretching sections are arranged at relative intervals; the distance between the two synchronous stretching sections is defined as the first distance, and the transmission chain clip is run on the transmission chain clip when the synchronous stretching section The distance between two adjacent clamps is defined as the second distance; on the opposite sides of the film clamped by the two drive chain clamps, the length of running through the synchronous stretching section accounts for at least 70% or more During the road section, the difference between the increase rate of the first distance and the increase rate of the second distance is kept within 20%.
  • the ratio between the increase rate of the first interval and the increase rate of the second interval is The difference is kept within 10%.
  • each of the synchronous stretching sections includes a first track and a second track, and the first track A rail is arranged at a distance from the second rail, and the first rail includes a plurality of segments with different shapes and arranged in sequence.
  • the segments are one or more combinations of arc shape, straight line shape, and broken line shape.
  • multiple segments are connected in sequence to form an integrated structure.
  • two adjacent segments are split structures with gaps.
  • the first rail is an elastic member;
  • the synchronous stretching section further includes a plurality of first moving assemblies, and the plurality of first moving assemblies are sequentially extended along the extending direction of the first rail Arranged at intervals;
  • the first moving assembly is connected to the first rail, and the first moving assembly is used to drive the part of the first rail correspondingly connected to the first moving assembly to move along the lateral direction, so as to Adjusting the distance between the part of the first rail corresponding to the connection with the first moving assembly and the second rail.
  • the elastic member is an elastic metal plate, a high temperature resistant elastic plastic plate or a high temperature resistant elastic rubber plate.
  • the synchronous stretching section further includes a plurality of first seat boards sequentially arranged along the extending direction of the first rail, and the plurality of first seat boards are all fixedly connected to the The bottom of the first rail; the driving part of the first moving assembly is connected to the first seat plate, and is connected to the first rail through the first seat plate.
  • the ends of any two adjacent first seat plates are rotationally connected, and the driving portion of the first moving assembly is connected to the rotational connection portions of two adjacent first seat plates.
  • the synchronous stretching section further includes a second seat plate; the second seat plate is fixedly connected to the bottom of the second rail; the first seat plate is slidably arranged on the on the second seat.
  • the first moving assembly includes a support plate connected to the second seat plate, a fixed plate disposed on the support plate, a sliding plate slidably disposed on the support plate, and the sliding plate rotates connected first screw rod; the first screw hole adapted to the first screw rod is provided on the fixed plate, and the first screw rod passes through the first screw hole and is arranged on the fixed plate; The sliding plate is connected with the first seat plate.
  • the ends of any two adjacent first seat plates are rotationally connected, and the rotational connection portions of two adjacent first seat plates are connected through a first hinge shaft.
  • the sliding plate is provided with a first waist-shaped hole corresponding to the first hinge shaft, the first waist-shaped hole is arranged along the longitudinal direction, and the first hinge shaft passes through It is arranged in the first waist-shaped hole and can move along the first waist-shaped hole.
  • the synchronous stretching section further includes a second moving assembly, the second moving assembly is connected with the second seat board, and the second moving assembly is used to drive the second seat board Movement in the lateral direction.
  • the number of the first moving components is greater than the number of the second moving components.
  • the second moving assembly includes a second screw, a base and a pushing block; the pushing block is connected to the support plate of the first moving assembly, and the pushing block is provided with a
  • the second screw holes correspond to the two screws, the second screw rods are installed in the second screw holes, and the ends of the second screw rods pass through the side wall of the oven and protrude to the outside of the oven.
  • the rotational connection parts of two adjacent second seat boards are connected through the second hinge shaft, and the support plate of the first moving assembly is provided with a Corresponding to the second waist-shaped hole, the second waist-shaped hole is arranged along the longitudinal direction, the second hinge shaft passes through the second waist-shaped hole and can move along the second waist-shaped hole .
  • one first moving assembly is correspondingly arranged every 0.5m to 2m.
  • the above-mentioned film stretching device whose vertical and horizontal stretching ratio tends to be consistent, runs through the synchronous stretching section whose length accounts for at least 70% of the length of the synchronous stretching section on the opposite sides of the film clamped by the transmission chain clip, the first distance
  • the difference between the increase rate of the second spacing and the increase rate of the second spacing is kept within 20%, that is, on the one hand, the synchronous stretching of the film in the longitudinal and transverse directions can be realized, and on the other hand, at least the length ratio is at least 70% during the running process.
  • the difference between the transverse stretch rate and the longitudinal stretch rate of the film can be kept within 20%. In this way, the stretch quality of the film can be improved.
  • Fig. 1 is a graph showing the change curve of film material in the traditional synchronous stretching section in transverse stretch rate and longitudinal stretch rate with stretching stroke;
  • Fig. 2 is a schematic structural view of a film stretching device in which the vertical and horizontal stretch ratios tend to be consistent according to an embodiment of the present application;
  • Fig. 3 is a schematic structural view of the synchronous stretching section shown in Fig. 2;
  • Fig. 4 is a schematic structural view of a certain local road section in the synchronous stretching section of an embodiment of the present application
  • Fig. 5 is a curve diagram of the change of the transverse stretch ratio and the longitudinal stretch ratio with the stretching stroke in the synchronous stretching section of the membrane material according to an embodiment of the present application;
  • FIG. 6 is a structural schematic view of a transmission chain clip installed on a circular track according to an embodiment of the present application
  • Fig. 7 is a schematic diagram of the enlarged structure of Fig. 6 at place A;
  • Fig. 8 is a structural schematic diagram of another viewing angle of the transmission chain clip installed on the circular track according to an embodiment of the present application.
  • FIG. 9 is a structural schematic view of a transmission chain clip installed on a circular track and along the direction of the first rail according to an embodiment of the present application.
  • Fig. 1 schematically shows the change curve of the film material in the traditional synchronous stretching section in the transverse stretching rate and longitudinal stretching rate with the stretching stroke.
  • the change curve of the traditional transverse stretch rate is different from the change curve of the longitudinal stretch rate, that is, the transverse stretch rate (the speed of transverse stretching) is different from the longitudinal stretch rate (longitudinal stretch rate). stretch speed).
  • the transverse stretch rate is in a suitable constant state for a long time, and the change curve of the transverse stretch rate is in a state close to a straight line, which is different from the change of the track distance along the two outer rails that are relatively arranged (gradually increase) correspondingly; but the change curve of the longitudinal stretch rate is mainly reflected in the characteristics of a rapid start and a rapid decline later, and the change curve of the longitudinal stretch rate is a function change state. Therefore, along the entire synchronous stretching line of the film, the change curve of the transverse stretch rate and the change curve of the longitudinal stretch rate are in a state of obvious difference for a long time.
  • the stretching characteristics of the film in the two directions do not match. Even if the hinge points at both ends of the main track plate and the auxiliary track plate can be adjusted by appropriate displacement to optimize the trajectory of the guide rail, they are distributed in a straight line.
  • the inner and outer guide rail sections account for most of the length of the film, the longitudinal and lateral reorganization of the film molecules during the entire synchronous stretching process is not ideal, and the advantages of synchronous stretching cannot be fully utilized. , the tensile quality improvement of the film is not ideal.
  • Fig. 2 shows the structure diagram of the film stretching device that the vertical and horizontal stretch ratios of an embodiment of the present application tend to be consistent
  • Fig. 3 shows the synchronous stretching shown in Fig. 2 Schematic diagram of the structure of stretching section L 2
  • FIG. 4 shows a schematic structural diagram of a partial section in the synchronous stretching section L 2 of an embodiment of the present application.
  • An embodiment of the present application provides a film stretching device with uniform vertical and horizontal stretching ratios.
  • the film stretching device with uniform vertical and horizontal stretching ratios includes: two circular tracks 10 and two transmission chain clips 20 .
  • the two transmission chain clips 20 are arranged on the two circular tracks 10 one by one, and the clamps 223 of the two transmission chain clips 20 are used to clamp opposite sides of the film 60 .
  • Each circular track 10 includes a synchronous stretching section L 2 , and two synchronous stretching sections L 2 are arranged at intervals relative to each other.
  • the distance between two synchronous stretching sections L2 is defined as the first distance D2
  • the distance between two adjacent clamps 223 on the transmission chain clamp 20 when the transmission chain clamp 20 runs in the synchronous stretching section L2 is defined as the second distance. spacing (not shown in the figure).
  • the above-mentioned film stretching device whose vertical and horizontal stretching ratio tends to be consistent, runs through the synchronous stretching section L2 when the drive chain clip 20 clamps the opposite sides of the film 60, and the length of the synchronous stretching section L2 accounts for at least 70%.
  • the difference between the increasing rate of the first spacing and the increasing rate of the second spacing is kept within 20%, that is, on the one hand, the synchronous stretching of the film 60 in the longitudinal direction and the transverse direction can be realized;
  • the difference between the transverse stretch rate and the longitudinal stretch rate of the film 60 can be kept within 20%. In this way, the stretch quality of the film 60 can be improved.
  • the length of the synchronous stretching section L 2 is at least 50% of the road section.
  • the difference between the increase rate of the first distance and the increase rate of the second distance is kept within 10%. In this way, the transverse stretching ratio of the film 60 can be consistent with the longitudinal stretching ratio, and the stretching quality of the film 60 can be further improved.
  • the length of running through the synchronous stretching section L 2 accounts for at least 70% of the road section During the process, the difference between the increase rate of the first distance and the increase rate of the second distance may also be kept within 15%, within 10% or within 5%.
  • each synchronous stretching section L 2 includes a first rail 11 and a second rail 12 .
  • the first rail 11 and the second rail 12 are arranged at intervals relative to each other.
  • the first rail 11 includes a plurality of sections with different shapes arranged in sequence, and the sections are one or more combinations of arc shape, straight line shape, and broken line shape.
  • the shape of the first rail 11 can be adjusted accordingly according to the actual shape of the film, so that the length of running through the synchronous stretching section L 2 can be accounted for.
  • the ratio is at least 70%, the difference between the increase rate of the first distance D2 and the increase rate of the second distance is kept within 20%.
  • multiple segments are connected in sequence to form an integrated structure.
  • two adjacent segments can also be split, and for example, a gap is provided, and the size of the gap does not affect the operation of the transmission chain clip 20 on the first rail 11 .
  • the first rail 11 is an elastic member.
  • the synchronous stretching section L 2 also includes a plurality of first moving assemblies 13 .
  • a plurality of first moving assemblies 13 are sequentially arranged at intervals along the extending direction of the first rail 11 .
  • the first moving assembly 13 is connected with the first rail 11, and the first moving assembly 13 is used to drive the position corresponding to the first moving assembly 13 on the first rail 11 to move along the lateral direction to adjust the first rail 11 and the first rail.
  • a moving component 13 corresponds to the distance between the connected part and the second rail 12 .
  • the synchronous stretching section L 2 further includes a plurality of first seat plates 14 sequentially arranged along the extending direction of the first rail 11 .
  • the plurality of first seat boards 14 are fixedly connected to the bottom of the first rail 11 .
  • the driving part of the first moving assembly 13 is connected to the first seat plate 14 and connected to the first rail 11 through the first seat plate 14 .
  • the first moving assembly 13 is used to drive the position corresponding to the first moving assembly 13 on the first rail 11 to move along the lateral direction, so as to adjust the position on the first rail 11 corresponding to the first moving assembly 13 and the second rail. 12 spacing between.
  • the extension direction of the first rail 11 is also the running direction of the film 60 , the length direction of the film 60 or expressed as the longitudinal direction, which is shown by the x-axis in FIG. 2 .
  • the transverse direction refers to the direction perpendicular to the longitudinal direction, corresponding to the width direction of the film 60, as shown by the y-axis in FIG. 2 .
  • the synchronous stretching segment L 2 mentioned above when the first moving assembly 13 drives the part on the first rail 11 correspondingly connected with the first moving assembly 13 to move along the transverse direction, adjust the first rail 11
  • the longitudinal elongation rate of the local part can be adjusted.
  • the first moving assembly 13 is a plurality of and is arranged at intervals along the extension direction of the first rail 11, therefore, on the first rail 11 along its extension direction, a plurality of positions connected with the first moving assembly 13 are connected with the first moving assembly 13.
  • the spacing between the two rails 12 can be adjusted flexibly according to actual needs, so that the longitudinal stretch ratios of the first rail 11 at multiple positions connected to the first moving assembly 13 along its extending direction can be achieved. Adjust flexibly so that the difference between the longitudinal stretch rate and the transverse stretch rate of the film 60 remains within a preset range, such as within 20%, during the process of the film 60 running through the synchronous stretching section L2 , and also That is, it can be realized that the longitudinal stretch rate and the transverse stretch rate of the film 60 tend to be consistent, thereby greatly improving the stretch quality of the film 60 .
  • the first rail 11 can be both an inner rail and an outer rail.
  • the second rail 12 is correspondingly an outer rail (as shown in accompanying drawings 2 to 4 in the application); when the first rail 11 is an outer rail, the second rail 12 is correspondingly inner rail.
  • the elastic member includes but is not limited to elastic metal plate, high temperature resistant elastic plastic plate or high temperature resistant Elastic rubber sheet, etc., flexibly select elastic materials according to actual needs.
  • the first moving assembly 13 mainly provides power to push the part on the first rail 11 correspondingly connected with the first moving assembly 13 to run laterally.
  • the first driving assembly includes but is not limited to screw drive, cylinder push Mechanism, oil cylinder driving mechanism, motor screw driving mechanism, gear driving mechanism, etc. are not limited here, and can be flexibly set according to actual conditions.
  • the synchronous stretching section L 2 further includes a plurality of first seat plates 14 sequentially arranged along the extending direction of the first rail 11 .
  • the plurality of first seat boards 14 are fixedly connected to the bottom of the first rail 11 .
  • the driving part of the first moving assembly 13 is connected with the first seat plate 14 and connected with the first rail 11 through the first seat plate 14 .
  • the driving parts of the first moving assembly 13 can respectively drive the first seat plate 14 connected to it to move along the transverse direction, and when the first seat plate 14 moves along the transverse direction, it can correspondingly drive the first rail 11 connected to it
  • the movement makes the part of the first rail 11 corresponding to the first moving assembly 13 bend, so that the longitudinal stretch rate of the part can be adjusted.
  • any two adjacent first seat plates 14 are rotatably connected, the driving part of the first moving assembly 13 and the rotation of the adjacent two first seat plates 14
  • the connecting parts are connected.
  • a plurality of first seat boards 14 are sequentially connected in rotation, and when the driving part of the first moving assembly 13 drives the rotation connection parts of two adjacent first seat boards 14 to move, the relative small thrust can be used to push the corresponding parts.
  • the rotation joints of the adjacent two first seat plates 14 run along the transverse direction, so as to facilitate the adjustment of the area corresponding to the rotational joints of the two adjacent first seat plates 14 on the first rail 11 and the second Spacing between rails 12.
  • any two adjacent first seat plates 14 are not limited to being rotationally connected, and may also be arranged at intervals, and the driving part of the first moving assembly 13 is connected to the middle part of the first seat plate 14 accordingly, In this way, the driving force of the first moving assembly 13 directly acts on the first seat board 14 connected thereto, instead of acting on two adjacent first seat boards 14 .
  • the synchronous stretching section L 2 further includes a second seat plate 15 .
  • the second seat plate 15 is fixedly connected to the bottom of the second rail 12 .
  • the first seat board 14 is slidably disposed on the second seat board 15 .
  • the first seat plate 14 is slidably arranged on the second seat plate 15, and can slide relative to the second seat plate 15 under the driving force of the first moving assembly 13.
  • the second seat plate 15 is opposite to the first seat plate.
  • the seat plate 14 and the first rail 11 connected to it play a supporting role, which can ensure the running stability of the first rail 11, and at the same time, the arrangement of the device structure is reasonable and the structure is simplified.
  • the first moving assembly 13 includes a support plate 131 connected to the second seat plate 15, a fixed plate 132 disposed on the support plate 131, slidably disposed on the support plate 131
  • the sliding plate 133 on the top, the first screw rod 134 that is connected with the sliding plate 133 in rotation.
  • the fixing plate 132 is provided with a first screw hole adapted to the first screw rod 134 , and the first screw rod 134 is disposed on the fixing plate 132 through the first screw hole.
  • the sliding plate 133 is connected with the first seat plate 14 .
  • the first screw rod 134 when the first screw rod 134 is rotated, the first screw rod 134 correspondingly drives the sliding plate 133 to move along the lateral direction, and when the sliding plate 133 runs, it correspondingly drives the first seat plate 14 and the first rail 11 connected thereto to run along the lateral direction .
  • the end of the first screw 134 can extend out of the oven 50 through the side wall of the oven 50 of the film stretching device whose vertical and horizontal stretching ratio tends to be consistent, so that the oven 50 can be directly Operate the first screw 134 to rotate, and it can also be set inside the oven 50, so as to avoid protruding out of the oven 50 and occupying the space outside the oven 50. It can be flexibly set according to actual needs, and is not limited here.
  • the first moving assembly 13 further includes a first hand wheel 135 .
  • the first hand wheel 135 is connected to the end of the first screw rod 134 .
  • the first hand wheel 135 drives the first screw 134 to rotate, and when the first screw 134 rotates, the sliding plate 133 is correspondingly pushed to drive the first seat plate 14 along the transverse direction to the second position.
  • the first moving assembly 13 is not provided with the first handwheel 135, but provided with a motor, which is connected with the first screw rod 134 through the motor, and the first screw rod 134 is driven to rotate by the motor, so that the degree of automation is relatively high, and no manual operation is required by the operator. The operation adjusts the distance between the first rail 11 and the second rail 12 .
  • the "second seat plate 15, fixed plate 132" can be "a part of the support plate 131", that is, the "second seat plate 15, fixed plate 132" and “other parts of the support plate 131" are integrally formed Manufacture; An independent member that can also be separated from “other parts of the support plate 131", that is, “the second seat plate 15, the fixed plate 132” can be manufactured independently, and then combined with “other parts of the support plate 131" into one overall. As shown in FIG. 4 , in one embodiment, the "second seat plate 15 and the fixed plate 132" are part of the integrally formed manufacturing of the "support plate 131".
  • the synchronous stretching section L 2 further includes a second moving assembly 16 .
  • the second moving assembly 16 is connected with the second seat plate 15, and the second moving assembly 16 is used to drive the second seat plate 15 to move along the transverse direction.
  • the second seat plate 15 correspondingly drives the second rail 12 moves along the transverse direction, and at the same time drives the first rail 11 to move along the transverse direction through the supporting plate 131 connected with the second seat plate 15, so that the first distance D between the two synchronous stretching sections L2 can be adjusted 2 , in order to realize the adjustment of the transverse stretching ratio of the film 60.
  • the second moving assembly 16 mainly provides power to push the second seat plate 15 to move along the lateral direction.
  • the second driving assembly includes but is not limited to screw drive, cylinder push mechanism, oil cylinder push Mechanism, motor screw drive mechanism, gear drive mechanism, etc. are not limited here, and can be flexibly set according to actual conditions.
  • the second moving assembly 16 includes a second screw 161 , a base 162 and a pushing block (not shown in the figure).
  • the pushing block is connected to the support plate 131 , and the pushing block is provided with a second screw hole corresponding to the second screw rod 161 .
  • the second screw 161 is installed in the second screw hole.
  • the end of the second screw 161 extends out of the oven 50 through the side wall of the oven 50 of the film stretching device whose vertical and horizontal stretching ratio tends to be consistent.
  • the second moving assembly 16 further includes a second hand wheel 163 .
  • the second hand wheel 163 is connected to the end of the second screw rod 161 .
  • the second handwheel 163 drives the second screw rod 161 to rotate, and when the second screw rod 161 rotates, the push block is pushed accordingly, and the push block drives the support plate 131 to move along with respect to the base 162. Swipe in landscape direction.
  • the second moving assembly 16 is not provided with the second hand wheel 163, but provided with a motor, which is connected with the second screw 161 through the motor, and the second screw 161 is driven to rotate by the motor, so that the degree of automation is relatively high, and no manual operation is required by the operator.
  • the operation adjusts the first distance D 2 of the two synchronous stretching segments L 2 arranged oppositely.
  • FIG. 3 and FIG. 4 there are multiple second moving assemblies 16 arranged at intervals along the extending direction of the first rail 11 .
  • There are multiple second seat boards 15 the ends of any two adjacent second seat boards 15 are rotatably connected, and the driving part of the second moving assembly 16 is connected with the rotationally connected parts of two adjacent second seat boards 15 .
  • the positions of the first rail 11 and the second rail 12 can be adjusted respectively through a plurality of second moving assemblies 16, so that the first rail 11 and the second rail 12 are along the Move in the lateral direction.
  • the number of first moving assemblies 13 is greater than the number of second moving assemblies 16 . Since the quantity of the first moving assembly 13 is greater than the quantity of the second moving assembly 16, the longitudinal tension of each position along the line of the first rail 11 can be adjusted by adjusting the longitudinal stretch rate of each position along the line of the first rail 11. The difference between the elongation rate and the transverse stretching rate is kept within a preset range. Specifically, when the length of the synchronous stretching section L2 is 20 meters, the number of first moving assemblies 13 provided on the synchronous stretching section L2 is, for example, 11, that is, along the longitudinal direction, every 1 meter A first moving component 13 will be provided correspondingly. When the arrangement of the first moving components 13 is denser, it is more beneficial to keep the difference between the longitudinal stretch rate and the transverse stretch rate of the film 60 within a preset range.
  • a first moving assembly 13 is correspondingly provided every 0.5 to 2 meters.
  • the synchronous stretching section L 2 will be appropriately moved and adjusted along the running direction of the transmission chain clip 20 to meet and compensate for the circular track. 10 length variations.
  • the rotational connection parts of two adjacent first seat plates 14 are connected through the first hinge shaft 141, and the sliding plate 133 is provided with a first waist-shaped hole 1331 corresponding to the first hinge shaft 141, the second A waist-shaped hole 1331 is disposed along the longitudinal direction, and the first hinge shaft 141 passes through the first waist-shaped hole 1331 and can move along the first waist-shaped hole 1331 .
  • the first moving assembly 13 drives the sliding plate 133 to move on the support plate 131 along the transverse direction, and when the sliding plate 133 moves, the two first seat plates 14 are correspondingly driven along the transverse direction through the first hinge shaft 141 move, the distance between the first rail 11 and the second rail 12 that are oppositely arranged can be adjusted; movable, so that the first seat plate 14 can be movably arranged on the bracket along the longitudinal direction, so as to meet and compensate the length change of the circular track 10 .
  • the rotational connection parts of two adjacent second seat boards 15 are connected through the second hinge shaft 151, and the support plate 131 is provided with the corresponding to the second hinge shaft 151.
  • the second waist-shaped hole 1311 is arranged along the longitudinal direction, and the second hinge shaft 151 passes through the second waist-shaped hole 1311 and can move along the second waist-shaped hole 1311 .
  • the second hinge shaft 151 drives the two second seat plates 15 to move along the transverse direction, so that The positions of the first rail 11 and the second rail 12 are synchronously adjusted in the transverse direction, thereby realizing the adjustment of the transverse stretch rate of the film 60; It can be moved along the second waist-shaped hole 1311 , so that the second seat plate 15 can be movably arranged on the bracket along the longitudinal direction, so as to meet and compensate for the length variation of the circular track 10 .
  • a film stretching device with uniform vertical and horizontal stretch ratios and a thin film with uniform vertical and horizontal stretch ratios
  • the film stretching device also includes: a bracket (not shown in the figure).
  • Two circular tracks 10 are arranged on the support, and two transmission chain clips 20 are arranged on the two circular tracks 10 correspondingly.
  • Each circular track 10 comprises a synchronous stretching section L 2 .
  • the transmission chain clamp 20 can move circularly along the circular track 10 where it is located, and one of the transmission chain clamps 20 clamps when running in the clamping section.
  • One side of the holding film 60 drives the film 60 to move forward, and the other side of the transmission chain clip 20 clamps the film 60 to drive the film 60 to move forward when it is running in the clamping section.
  • the circular track 10 is further provided with a preheating section L 1 , a shaping section L 3 , a cooling section L 4 and a return section P.
  • the preheating section L 1 , the synchronous stretching section L 2 , the setting section L 3 , the cooling section L 4 and the return section P are connected in sequence.
  • the preheating section L 1 , synchronous stretching section L 2 , shaping section L 3 and cooling section L 4 of one circular track 10 are connected with the preheating section L 1 and synchronous stretching section of the other circular track 10
  • the positions of L 2 , shaping section L 3 and cooling section L 4 are in one-to-one correspondence.
  • the distance between the two preheating sections L 1 is defined as D 1 , and the distance D 1 remains constant along the running direction of the film 60 .
  • the distance between two adjacent clamps 223 remains constant along the running direction of the film 60 . In this way, when the film 60 passes through the preheating section L1 , the film 60 is not stretched transversely, but the temperature of the film 60 is heated to a preset temperature.
  • the first distance D 2 tends to increase along the running direction of the film 60 . That is, when the transmission chain clip 20 runs in the synchronous stretching section L2 , it can realize the transverse stretching of the film 60 (as shown in the y-axis in FIG. 2 ).
  • the distance between two shaping segments L 3 is defined as D 3 , and the distance D 3 decreases or remains constant along the running direction of the film 60 .
  • the distance between two adjacent clamps 223 when the transmission chain clamp 20 runs in the shaping section L 3 tends to decrease or remain unchanged along the running direction of the film 60 .
  • the distance between the two cooling sections L 4 is defined as D 4 , and the distance D 4 remains constant along the running direction of the film 60 .
  • the distance between two adjacent clips 223 remains constant along the running direction of the film 60 . In this way, when the film 60 passes through the cooling section L4 , the film 60 is not stretched transversely, but the temperature of the film 60 is cooled to a preset temperature.
  • the film stretching device whose vertical and horizontal stretching ratio tends to be consistent further includes two driving mechanisms (not shown in the figure) arranged on the support.
  • One of the driving mechanisms is connected with one of the transmission chain clips 20, and is used to drive one of the transmission chain clips 20 to run along one of the circular tracks 10; the other driving mechanism is connected with another transmission chain clip 20, for driving another transmission chain clip 20; The chain clip 20 runs along another circular track 10 .
  • each driving mechanism is, for example, two, three, four or other number of driving chain discs arranged on the bracket, and the driving chain discs are used to drive the transmission chain clip 20 to run along the circular track 10 .
  • the driving mechanism can also be one, two or other numbers of magnetic mechanisms, and the drive chain clip 20 is driven to run along the circular track 10 through the magnetic mechanism.
  • the film stretching device with consistent vertical and horizontal stretching ratios further includes two inlet platforms 41 and two outlet platforms 42 arranged on the support.
  • One of the entrance platforms 41 and one of the exit platforms 42 are used to install one of the circular tracks 10
  • the other entrance platform 41 and the other exit platform 42 are used to install another circular track 10 .
  • the first drive chain reel 31 and the third drive chain reel 33 are disposed on the entrance platform 41
  • the second drive chain reel 32 and the fourth drive chain reel 34 are disposed on the exit platform 42 .
  • the specific rotational speed of the second driving chain disk 32 and the first driving chain disk 31 is set according to the longitudinal stretch ratio of the film 60, for example, the longitudinal stretch ratio is set such that the rotational speed of the first driving chain disk 31 is 1 m /s, then the rotational speed of the second drive chain disc 32 is controlled to be 10m/s accordingly.
  • the longitudinal stretch ratio is set such that the rotational speed of the first driving chain disk 31 is 1 m /s, then the rotational speed of the second drive chain disc 32 is controlled to be 10m/s accordingly.
  • the third drive chain disc 33 and the fourth drive chain disc 34 can realize that the transmission chain clip 20 on the return section P maintains a preset speed, that is to say, the speed of the transmission chain clip 20 on the return section P remains constant, and On the return section P, it is in a stretched state.
  • the two drive chain clips 20 respectively apply force to the two sides of the film 60 to realize the transverse stretching and longitudinal stretching of the film 60 .
  • two inlet platforms 41, two outlet platforms 42, two ring tracks 10 and two driving chain clips 20 are all about the operation of film 60.
  • the first driving chain disk 31 on the two entrance platforms 41 is a symmetrical design structure with respect to the running direction of the film 60
  • the third driving chain disk 33 on the two entrance platforms 41 is about the running direction of the film 60.
  • the second drive chain disc 32 on the two outlet platforms 42 is a symmetrical design structure with respect to the running direction of the film 60
  • the fourth drive chain disc 34 on the two export platforms 42 is about the film 60 Symmetrical design structure in the running direction.
  • the transmission chain clip 20 includes a first traveling assembly 210 , a second traveling assembly 220 and a link assembly 230 .
  • Both the first walking assembly 210 and the second walking assembly 220 are plural.
  • a plurality of first walking assemblies 210 are used to be movably arranged on the first rail 11 in sequence, and a plurality of second walking assemblies 220 are used to be movably arranged on the second rail 12 in sequence.
  • the first walking assemblies 210 and the second walking assemblies 220 are arranged alternately.
  • the first walking assembly 210 includes a first main body 211
  • the second walking assembly 220 includes a second main body 221 and a clamp 223 disposed on the second main body 221 .
  • the first traveling assembly 210 further includes a first driving wheel 215 disposed on the first main body 211 .
  • the driving chain disc drives the first traveling assembly 210 to move by acting on the first driving wheel 215 .
  • the second walking assembly 220 also includes a second driving wheel 225 disposed on the second main body 221 .
  • the clamp 223 is rotatably arranged on the second main body 221.
  • the second main body 221 is provided with a support platform 2212 protruding outside the second rail 12.
  • the clamping surface of the clamp 223 cooperates with the plate surface of the support platform 2212 to be processed. Processed film 60.
  • the clamp 223 includes a clamping head 2231 and a handle 2232.
  • the handle 2232 is rotatably arranged on the second body 221.
  • the handle 2232 is connected with the clamping head 2231.
  • the handle 2232 rotates, it drives the clamping
  • the head 2231 rotates, and when the clamping head 2231 rotates, it can cooperate with the plate surface of the supporting platform 2212 to clamp the film 60 to be processed or loosen the film 60 .
  • the first walking assembly 210 further includes two first rollers 212 rotatably arranged on the first main body 211 , and the two first rollers 212 are respectively arranged on the first
  • the two sides of the rail 11 can roll along the side of the first rail 11.
  • the second walking assembly 220 further includes two second rollers 222 rotatably disposed on the second main body 221 .
  • the two second rollers 222 are respectively disposed on two sides of the second rail 12 and can roll along the side of the second rail 12 .
  • the two first rollers 212 are symmetrically disposed on both sides of the first rail 11 and can roll along the side of the first rail 11 .
  • the two second rollers 222 are symmetrically arranged on two sides of the second rail 12 and can roll along the side of the second rail 12 . In this way, the operation stability can be improved, and the operation failure rate is low.
  • the first walking assembly 210 further includes a third roller 214 rotatably disposed on the first main body 211 .
  • the third roller 214 is disposed on the top surface of the first rail 11 and can roll along the top surface of the first rail 11 .
  • the third roller 214 of the first traveling assembly 210 rolls along the top surface of the first rail 11, and the third roller 214 plays a role in supporting the first main body 211, realizing
  • the first walking assembly 210 can quickly run on the first rail 11.
  • the two first rollers 212 of the first walking assembly 210 move synchronously along the two sides of the first rail 11 to position the first walking assembly.
  • the function of 210 can realize that the first running assembly 210 runs stably on the first rail 11 .
  • the second walking assembly 220 further includes a fourth roller 224 rotatably disposed on the second body 221 .
  • the fourth roller 224 is disposed on the top surface of the second rail 12 and can roll along the top surface of the second rail 12 .
  • the fourth roller 224 of the second travel assembly 220 rolls along the top surface of the second rail 12, and the fourth roller 224 plays a role in supporting the second main body 221. function, so that the second walking assembly 220 can run on the second rail 12 quickly.
  • the two second rollers 222 of the second walking assembly 220 move synchronously along the two sides of the second rail 12 to play the role of positioning the second walking assembly 220, so that the second walking assembly 220 can run stably on the second rail 12. 12 on the second track.
  • the link assembly 230 includes more than two link plates 231 .
  • One end of the chain plate 231 is rotatably connected to the first body 211 , and the other end of the chain plate 231 is connected to the second body 221 .
  • Chain plates 231 are respectively provided on both sides of the first roller 212 close to the second rail 12
  • chain plates 231 are respectively provided on both sides of the second roller 222 close to the first rail 11 .
  • rotatable chain plates 231 are provided on both sides of the first roller 212 close to the second rail 12, and when a huge force is applied, the supporting force of the chain plates 231 on both sides of the first roller 212 is used to offset the unidirectional Deformation, thus greatly improving the compressive capacity of the bearing.
  • both sides of the second roller 222 close to the first rail 11 are provided with rotatable chain plates 231, and when subjected to a huge force, the supporting force of the chain plates 231 on both sides of the second roller 222 is used to offset the single Directional deformation, thus greatly improving the compressive capacity of the bearing.
  • first walking assembly 210 and the second walking assembly 220 are arranged alternately, that is, there are two second walking assemblies 220 adjacent to the first walking assembly 210, and there are two second walking assemblies 220 adjacent to the second walking assembly 220.
  • a walking assembly 210 taking the first walking assembly 210 as an example for illustration, the first walking assembly 210 needs to pass through a connecting rod assembly 230 and one of them The adjacent second walking assembly 220 is connected in rotation, and the first walking assembly 210 needs to be connected in rotation with another adjacent second walking assembly 220 through another connecting rod assembly 230, so that the first walking assembly 210 is connected with two connecting rods.
  • the rod assembly 230 so that the first walking assembly 210 is rotatably connected with more than four chain plates 231 . Likewise, more than four chain plates 231 are rotatably connected to the second walking assembly 220 .
  • the center line of the rotating shaft of the first roller 212 close to the second rail 12 and the center line of the rotating shaft of one end of the chain plate 231 on the first main body 211 are collinearly arranged;
  • the centerline of the rotating shaft of the second roller 222 of the rail 11 is arranged in line with the centerline of the rotating shaft of the other end of the chain plate 231 on the second main body 221 .
  • a stress point of the first walking assembly 210 is concentrated on the centerline of the rotating shaft of the first roller 212, and a stressed portion of the second traveling assembly 220 is concentrated on the centerline of the rotating shaft of the second roller 222, so that the transmission chain can be realized.
  • the operation of the clip 20 is more stable and reliable.
  • the chain plate 231 on the first body 211 and the first roller 212 close to the second rail 12 are arranged on the same rotation axis.
  • the chain plate 231 on the second main body 221 and the second roller 222 close to the first rail 11 are arranged on the same rotation axis.
  • the link assembly 230 has two chain plates 231 , and the thickness of the chain plates 231 , the thickness of the first roller 212 and the thickness of the second roller 222 are all the same.
  • the number of chain plates 231 arranged on the upper and lower sides of the first roller 212 of one of the first walking assemblies 210 is respectively two
  • the number of the other first walking assembly 210 is
  • the number of chain plates 231 arranged on the upper and lower sides of the first roller 212 are three and one respectively
  • the number of chain plates 231 arranged on both sides is two respectively
  • the numbers of chain plates 231 arranged on the upper and lower sides of the second roller 222 of the other second traveling assembly 220 are three and one respectively.
  • the first rollers 212 of two adjacent first traveling assemblies 210 are mutually offset
  • the second rollers 222 of two adjacent second traveling assemblies 220 are mutually offset.
  • the first body 211 and the second body 221 are both "I"-shaped bodies, and the first body 211 faces the first notch 2111 on the side of the second rail 12
  • One end of the two stacked chain plates 231 is installed, and the second notch 2211 on the side of the second main body 221 facing the first rail 11 is equipped with the other end of the two stacked chain plates 231;
  • the two first rollers 212 on the bottom surface of 211 are at the same height position, and the two second rollers 222 on the bottom surface of the second main body 221 are at the same height position;
  • the bottom surface of the first main body 211 is provided with the first roller 212 and two One end of the chain plate 231 is stacked with the second roller 222 and the other ends of the two chain plates 231 on the bottom surface of the second body 221 .
  • the first roller 212 on the bottom surface of one first main body 211 is located above the two chain plates 231, and the first roller 212 on the bottom surface of the adjacent first main body 211 is located on the two chain plates Between 231. Further, in order to realize that the two first rollers 212 on the bottom surface of the other first main body 211 are at the same height position, a first spacer 2112 is provided on the bottom surface of the first main body 211 away from the side of the second rail 12. The thickness of the spacer 2112 is the same as that of the chain plate 231 , and the first roller 212 on the first body 211 away from the second rail 12 is rotatably mounted on the first spacer 2112 .
  • the second roller 222 on the bottom surface of one second main body 221 is located above the two chain plates 231, and the second roller 222 on the bottom surface of the adjacent second main body 221 is located on the two chain plates Between 231. Further, in order to realize that the two second rollers 222 on the bottom surface of the second main body 221 are at the same height position, the bottom surface of the second main body 221 is provided with a second spacer 2213 on the side away from the first rail 11. The thickness of the spacer 2213 is the same as that of the chain plate 231 , and the second roller 222 on the second body 221 away from the first rail 11 is rotatably mounted on the second spacer 2213 .
  • the first rollers 212 of two adjacent first traveling assemblies 210 are mutually offset, and the second rollers 222 of two adjacent second traveling assemblies 220 are mutually offset.
  • the included angle between two adjacent link assemblies 230 becomes smaller correspondingly, because the first rollers of the adjacent two first walking assemblies 210 212 are mutually staggered, the angle between two adjacent link assemblies 230 can become smaller, which is conducive to the smaller distance between two adjacent clamps 223; in addition, under a certain chain clip width space, it can be Configure the first roller 212 and the second roller 222 with a larger diameter, so that the stressed parts including the first roller 212 and the second roller 222, such as the connecting rod shaft, the first roller 212 and the second roller 222, etc. The size is increased, thereby effectively improving the mechanical strength of the mechanism.
  • the first rail 11 and the second rail 12 are both plate-shaped, and the wheel surfaces of the two first rollers 212 are attached to the two plate surfaces of the first rail 11 respectively, and the two The wheel surfaces of the second roller 222 are attached to the two board surfaces of the second rail 12 respectively.
  • the wheel surface of the first roller 212 rotates on the plate surface of the first rail 11
  • the second walking assembly 220 moves along the second rail 12
  • the wheel surface of the second roller 222 Rotate and run on the plate surface of the second rail 12, so that the running stability can be improved, and the running failure rate is low.
  • the film stretching device whose vertical and horizontal stretching ratio tends to be consistent further includes a stopper 250 .
  • the first walking assembly 210 further includes a fifth roller 217 rotatably disposed on the first body 211 .
  • the limiting member 250 is arranged along the first rail 11 and is located above the first main body 211.
  • the wheel surface of the fifth roller 217 is in contact with the limiting member 250 or has a gap, and the fifth roller 217 can move along the limiting member 250. scroll.
  • the limiter 250 can prevent the fifth roller 217 from tilting upwards and cause the first running assembly 210 to break away from the first rail 11, which can ensure that the first running assembly 210 runs stably on the first rail 11; on the other hand
  • the fifth roller 217 can still roll along the limiting member 250 , and the running stability of the entire transmission chain clip 20 on the first rail 11 is better. That is, once the transmission chain clip 20 slightly breaks away from the top surface of the guide rail, the fifth roller 217 will be pressed against the limited part 250 and roll quickly along the stop part 250, which can ensure that the transmission chain clip 20 presses both There are tracks to run safely.
  • the limiting member 250 is a limiting bar arranged directly above the first rail 11 and corresponding to the first rail 11 .
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

La présente invention se rapporte au domaine technique du traitement de film, et concerne en particulier un dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants. Une section d'étirement synchrone (L2) comprend un premier rail (11), un second rail (12) et des premiers ensembles de déplacement (13). Le premier rail (11) et le second rail (12) sont opposés l'un à l'autre à un intervalle, et le premier rail (11) est un élément élastique. Une pluralité de premiers ensembles de déplacement (13) sont disposés et sont agencés séquentiellement à des intervalles dans une direction d'extension du premier rail (11), les premiers ensembles de déplacement (13) sont reliés au premier rail (11), et les premiers ensembles de déplacement (13) sont utilisés pour entraîner les parties du premier rail (11) qui sont reliées de manière correspondante aux premiers ensembles de déplacement (13) pour se déplacer dans une direction transversale, de façon à régler la distance entre le second rail (12) et les parties du premier rail (11) qui sont reliées de manière correspondante aux premiers ensembles de déplacement (13). De cette manière, lorsqu'un film (60) est actionné pour passer à travers la section d'étirement synchrone (L2), un taux d'étirement longitudinal et un taux d'étirement transversal du film (60) tendent à être constants, ce qui permet d'améliorer la qualité d'étirement du film (60).
PCT/CN2023/074083 2022-02-24 2023-02-01 Dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants WO2023160341A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210170777.7 2022-02-24
CN202210170777.7A CN114228123B (zh) 2022-02-24 2022-02-24 纵横拉伸率趋于一致的薄膜拉伸装置

Publications (1)

Publication Number Publication Date
WO2023160341A1 true WO2023160341A1 (fr) 2023-08-31

Family

ID=80748052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/074083 WO2023160341A1 (fr) 2022-02-24 2023-02-01 Dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants

Country Status (2)

Country Link
CN (1) CN114228123B (fr)
WO (1) WO2023160341A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114228123B (zh) * 2022-02-24 2022-06-14 佛山市盟思拉伸机械有限公司 纵横拉伸率趋于一致的薄膜拉伸装置
CN115195095A (zh) * 2022-05-17 2022-10-18 中材锂膜有限公司 一种高安全性湿法同步锂离子电池隔膜的拉伸装置
CN114770910B (zh) * 2022-05-27 2024-03-05 佛山市盟思拉伸机械有限公司 链夹的动态稳定机构与同步拉伸装置

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1113136A (en) * 1965-05-19 1968-05-08 Kalle Ag Process and apparatus for the production of oriented films of thermoplastics material
US20030020208A1 (en) * 2001-05-30 2003-01-30 Koji Tasaka Cellulose ester film, its manufacturing method, optical retardation film, optical compensation sheet, elliptic polarizing plate, and image display
US20070235896A1 (en) * 2006-04-06 2007-10-11 Fina Technology, Inc. High shrink high modulus biaxially oriented films
CN102069586A (zh) * 2010-12-29 2011-05-25 汕头市远东轻化装备有限公司 塑料薄膜双向同步拉伸设备
FR2980133A1 (fr) * 2011-09-19 2013-03-22 Moreno Innocente Marchante Dispositif pour etirer un film en matiere synthetique dans le sens transversal et dans le sens longitudinal
CN104044263A (zh) * 2014-06-13 2014-09-17 长春工业大学 链夹轨迹方向可控的同步双向拉伸机轨道机构
CN105252752A (zh) * 2015-11-03 2016-01-20 北京华腾佳和科技有限公司 一种超喂式薄膜拉伸工艺
CN206230870U (zh) * 2016-09-28 2017-06-09 佛山市盟思拉伸机械有限公司 链轨装置及用于薄膜同步拉伸及松弛的输送系统
CN206718455U (zh) * 2017-04-28 2017-12-08 山东新达包装科技有限公司 一种双向同步拉伸装置
CN206899741U (zh) * 2017-06-16 2018-01-19 江苏双星彩塑新材料股份有限公司 一种pet薄膜横向拉伸率控制设备
CN109049652A (zh) * 2018-10-15 2018-12-21 佛山市盟思拉伸机械有限公司 高速薄膜横向拉伸设备及纵向热定型机构
CN109927276A (zh) * 2017-12-15 2019-06-25 让-皮埃尔·达尔莱 热塑性材料膜拉伸机器
CN110621473A (zh) * 2017-05-15 2019-12-27 让·皮埃尔·达莱特 热塑性薄膜纵向及横向同时拉伸装置
CN111055484A (zh) * 2020-03-18 2020-04-24 佛山市盟思拉伸机械有限公司 薄膜拉伸链夹组件及薄膜拉伸处理装置
CN111086196A (zh) * 2020-03-19 2020-05-01 佛山市盟思拉伸机械有限公司 薄膜双向同步拉伸装置及其控制方法
CN113276396A (zh) * 2021-07-19 2021-08-20 佛山市盟思拉伸机械有限公司 薄膜拉伸装置及其链夹动态定位方法
CN114228123A (zh) * 2022-02-24 2022-03-25 佛山市盟思拉伸机械有限公司 纵横拉伸率趋于一致的薄膜拉伸装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014013901A1 (de) * 2014-09-18 2016-03-24 Brückner Maschinenbau GmbH & Co. KG Linearmotorangetriebene Simultan-Reckanlage

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1113136A (en) * 1965-05-19 1968-05-08 Kalle Ag Process and apparatus for the production of oriented films of thermoplastics material
US20030020208A1 (en) * 2001-05-30 2003-01-30 Koji Tasaka Cellulose ester film, its manufacturing method, optical retardation film, optical compensation sheet, elliptic polarizing plate, and image display
US20070235896A1 (en) * 2006-04-06 2007-10-11 Fina Technology, Inc. High shrink high modulus biaxially oriented films
CN102069586A (zh) * 2010-12-29 2011-05-25 汕头市远东轻化装备有限公司 塑料薄膜双向同步拉伸设备
FR2980133A1 (fr) * 2011-09-19 2013-03-22 Moreno Innocente Marchante Dispositif pour etirer un film en matiere synthetique dans le sens transversal et dans le sens longitudinal
CN104044263A (zh) * 2014-06-13 2014-09-17 长春工业大学 链夹轨迹方向可控的同步双向拉伸机轨道机构
CN105252752A (zh) * 2015-11-03 2016-01-20 北京华腾佳和科技有限公司 一种超喂式薄膜拉伸工艺
CN206230870U (zh) * 2016-09-28 2017-06-09 佛山市盟思拉伸机械有限公司 链轨装置及用于薄膜同步拉伸及松弛的输送系统
CN206718455U (zh) * 2017-04-28 2017-12-08 山东新达包装科技有限公司 一种双向同步拉伸装置
CN110621473A (zh) * 2017-05-15 2019-12-27 让·皮埃尔·达莱特 热塑性薄膜纵向及横向同时拉伸装置
CN206899741U (zh) * 2017-06-16 2018-01-19 江苏双星彩塑新材料股份有限公司 一种pet薄膜横向拉伸率控制设备
CN109927276A (zh) * 2017-12-15 2019-06-25 让-皮埃尔·达尔莱 热塑性材料膜拉伸机器
CN109049652A (zh) * 2018-10-15 2018-12-21 佛山市盟思拉伸机械有限公司 高速薄膜横向拉伸设备及纵向热定型机构
CN111055484A (zh) * 2020-03-18 2020-04-24 佛山市盟思拉伸机械有限公司 薄膜拉伸链夹组件及薄膜拉伸处理装置
CN111086196A (zh) * 2020-03-19 2020-05-01 佛山市盟思拉伸机械有限公司 薄膜双向同步拉伸装置及其控制方法
CN113276396A (zh) * 2021-07-19 2021-08-20 佛山市盟思拉伸机械有限公司 薄膜拉伸装置及其链夹动态定位方法
CN114228123A (zh) * 2022-02-24 2022-03-25 佛山市盟思拉伸机械有限公司 纵横拉伸率趋于一致的薄膜拉伸装置

Also Published As

Publication number Publication date
CN114228123A (zh) 2022-03-25
CN114228123B (zh) 2022-06-14

Similar Documents

Publication Publication Date Title
WO2023160341A1 (fr) Dispositif d'étirement de film permettant d'obtenir des taux d'étirement longitudinal et transversal qui ont tendance à être constants
WO2023160340A1 (fr) Dispositif d'allongement pour améliorer le synchronisme d'un film à une étape initiale d'allongement
CN113276396B (zh) 薄膜拉伸装置及其链夹动态定位方法
CN114228122B (zh) 薄膜双向混合拉伸装置与方法
AU2015387587B2 (en) Saddle curved-surface transition-based stepless bidirectional stretching method and device for film
CN107542787A (zh) 一种轴承滚子压装夹持工装
CN212863454U (zh) 一种卷纸张紧力可调的造纸机械
CN111055484B (zh) 薄膜拉伸链夹组件及薄膜拉伸处理装置
CN110587891A (zh) 超宽pc片材成型机的在线重载间隙微调装置
CN111732328B (zh) 一种多向调整的基板玻璃拉边机装置及调整方法
CN210884644U (zh) 一种始终能够保持排距均匀的排线器
CN109534051B (zh) 用于薄膜加工的生产系统
CN208290469U (zh) 一种捆绑履带式的薄膜无级横向拉伸装置
CN114248424A (zh) 薄膜纵向热矫形装置及方法
CN107542788A (zh) 一种带托架的轴承滚子压装辅助夹紧装置
CN217492174U (zh) 拉丝机收线装置
CN211078905U (zh) 一种曲面钢化玻璃生产用的边部稳型机构
CN116618444B (zh) 一种具有扎筒间距调节功能的轧管机
CN220330239U (zh) 一种滑轮支架生产装置
CN202779260U (zh) 一种齿条传动特种排线器
CN102847748B (zh) 一种齿条传动特种排线器
CN219771335U (zh) 薄膜展平机构和装置
CN218108953U (zh) 一种薄板类大直径板材滚圆加工设备
CN108422647A (zh) 一种捆绑履带式的薄膜无级横向拉伸方法及装置
CN212865436U (zh) 一种辊体间隙可调的造纸机械

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23758966

Country of ref document: EP

Kind code of ref document: A1