WO2022195735A1 - リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 - Google Patents
リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 Download PDFInfo
- Publication number
- WO2022195735A1 WO2022195735A1 PCT/JP2021/010695 JP2021010695W WO2022195735A1 WO 2022195735 A1 WO2022195735 A1 WO 2022195735A1 JP 2021010695 W JP2021010695 W JP 2021010695W WO 2022195735 A1 WO2022195735 A1 WO 2022195735A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lip
- actuator
- spacing
- die
- movable
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
- B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
- B29C48/2526—Direct drives or gear boxes
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
- B29C48/2665—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated allowing small relative movement, e.g. adjustments for aligning the apparatus parts or for compensating for thermal expansion
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/302—Extrusion nozzles or dies being adjustable, i.e. having adjustable exit sections
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92076—Position, e.g. linear or angular
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92152—Thickness
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/92409—Die; Nozzle zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92447—Moulded article
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92571—Position, e.g. linear or angular
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92628—Width or height
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Definitions
- the present invention relates to a lip spacing adjusting device, an extrusion molding die, an extrusion molding apparatus, a lip spacing adjusting method, and a film manufacturing method.
- T die An extrusion molding die (T die) that extrudes a film-like molten resin from a gap between lips (slits, gaps, hereinafter referred to as lip gaps) formed at the tip is known (see, for example, Patent Document 1). .
- Patent Document 1 discloses a plurality of heat bolts arranged in the width direction of the extrusion die in order to uniformly control the thickness of the film-shaped molten resin extruded from the lip gap over the entire width direction. It is By manually rotating the lip adjusting screw, the heat bolt moves in its axial direction to push and pull one lip (movable lip, flexible lip) to locally adjust the lip spacing. As a result, the thickness of the film-like molten resin that is subsequently extruded from the gap between the lips is uniformly controlled.
- a plurality of lip spacing adjusting mechanisms are arranged in the width direction of the extrusion molding die and adjust the lip spacing at each arrangement location. and a connecting member that connects the Then, the actuator adjusts the lip interval via the connecting member.
- a lip gap adjusting device an extrusion die, an extrusion molding apparatus, a lip gap adjusting method, and a film manufacturing method that can shorten the time required for adjusting the lip gap.
- FIG. 1 is a schematic diagram showing the overall configuration of an extrusion molding device 1 according to Embodiment 1.
- FIG. 3 is a perspective view of a T-die 20 to which a lip clearance adjusting device 30 is attached;
- FIG. 3 is a view in the direction of an arrow A1 in FIG. 2;
- FIG. 4 is a sectional view along IV-IV in FIG.
- FIG. 3 4 is a flowchart of an example of operation (before starting molding) of the lip clearance adjusting device 30; 4 is a flow chart of an example of operation (after molding is started) of the lip clearance adjusting device 30; 4 is a graph showing the relationship between the time and the amount of displacement of the movable lip 21c when adjusting the lip spacing S by the lip spacing adjusting device 30; It is 30 A of lip clearance adjustment apparatuses of a comparative example. 7 is a graph showing the relationship between the time and the amount of displacement of the movable lip 21c when the lip spacing S is adjusted by the lip spacing adjusting device 30A (heat bolt 33) of the comparative example.
- FIG. 10 is a cross-sectional view of a T-die 20 to which a lip clearance adjusting device 30 (Modification 1) is attached;
- FIG. 11 is a cross-sectional view of a T-die 20 to which a lip clearance adjusting device 30 (Modification 2) is attached;
- FIG. 11 is a perspective view of a T-die 20 to which a lip clearance adjusting device 30A (Modification 3) is attached; 11. It is the arrow directional view seen from arrow A 2 direction in FIG. 13 is a cross-sectional view taken along line XIII-XIII of FIG. 12;
- FIG. FIG. 10 is a cross-sectional view of a T-die 20 (Modification 4) having a die block 21A including a movable lip 21Ac and a die block 21B including a movable lip 21Bc.
- FIG. 1 is a schematic diagram showing the overall configuration of an extrusion molding device 1 according to Embodiment 1. As shown in FIG.
- the extrusion molding apparatus 1 passes the molten resin extruded from the extruder 10 (molten resin outlet 11) through a slit exit formed at the tip of a T die 20 (extrusion molding die), that is, the gap between the lips (slit, gap (hereinafter referred to as lip gap) to extrude into a film.
- films include sheets.
- the extrusion molding apparatus 1 includes an extruder 10, a T-die 20, a lip gap adjusting device 30, a cooling roll 40, a conveying roll group 50, a winder 60, a thickness sensor 70, and a lip gap measuring unit 71. , and a control unit 80 . That is, the extrusion molding apparatus 1 is a non-stretching film manufacturing apparatus.
- the extrusion molding device 1 includes a longitudinal stretching device for stretching the film in the longitudinal direction (machine direction (MD) stretching) between the cooling roll 40 and the winder 60, and a longitudinal stretching device for stretching the film in the transverse direction (TD (transverse direction)).
- Direction may be a biaxially stretched film manufacturing apparatus in which lateral stretching devices for stretching are arranged in series in this order, or a film is stretched in the vertical and horizontal directions between the cooling roll 40 and the winder 60. It may be a simultaneous biaxially stretched film manufacturing apparatus in which a stretching device for stretching is arranged, or a film manufacturing apparatus having other configurations.
- the extruder 10 is a device that extrudes heat-melted resin (hereinafter referred to as molten resin) from a molten resin outlet 11 .
- the extruder 10 may be a screw extruder or a plunger extruder.
- the cooling roll 40 cools the film-shaped molten resin 92a extruded from the T-die 20, and carries out the film 93 in which the film-shaped molten resin 92a is solidified.
- the film 93 carried out from the cooling roll 40 is transported via the transport roll group 50 and wound up by the winder 60 .
- the transport roll group 50 includes eight transport rolls 51-58. The number and arrangement of the transport rolls are appropriately determined.
- the thickness sensor 70 is an online thickness sensor (thickness gauge) that measures the thickness of the film formed by the molten resin extruded from the T-die 20 in the width direction of the T-die 20 (in FIG. 1, the direction orthogonal to the paper surface). are measured in real time at a plurality of positions (at least a plurality of positions corresponding to a plurality of lip clearance adjusting mechanisms 31 arranged as described later) along the .
- the thickness sensor 70 may be a non-contact (for example, laser, ⁇ -ray, or X-ray) thickness sensor or a direct (for example, linear gauge) thickness sensor.
- the lip spacing measuring unit 71 measures the lip spacing at multiple positions along the width direction of the T-die 20 (multiple positions corresponding to multiple lip spacing adjusting mechanisms 31 arranged as described later).
- the lip intervals at each of the plurality of positions may be detected by subjecting an image including the lip intervals taken by a camera to predetermined image processing, or may be detected by a laser gap sensor. Note that the lip spacing at each of the multiple positions may be manually measured using a feeler gauge. However, in the case of manual measurement, it is necessary to manually input measurement data to the control section 80 .
- the control unit 80 controls the actuator based on the film thickness (thickness data) measured at a plurality of positions by the thickness sensor 70 so that the film thickness is uniform.
- the control unit 80 includes a processor (not shown).
- the processor is, for example, a CPU (Central Processing Unit). The operation of the control section 80 will be described later.
- FIG. 2 is a perspective view of the T-die 20 to which the lip clearance adjusting device 30 is attached
- FIG. 3 is a view viewed from the arrow A1 direction in FIG. 2
- FIG. 4 is a sectional view taken along line IV-IV in FIG.
- the T-die 20 is a block-shaped member that forms the molten resin extruded from the extruder 10 into a film.
- the T-die 20 is typically made of metal.
- the T-die 20 is attached to the extruder 10 at its base end 20b side with its tip end 20a and base end 20b arranged in the vertical direction.
- the T-die 20 may be attached to the extruder 10 at its base end 20b side with its tip end 20a and base end 20b arranged horizontally.
- the T-die 20 has a pair of die blocks 21 and 22 .
- the die block 21 is an example of the first die block of the present invention
- the die block 22 is an example of the second die block of the present invention.
- a pair of die blocks 21 and 22 respectively include surfaces 21a and 22a facing each other.
- the T-die 20 includes an introduction passage, a manifold, and a slit 23c formed between the surfaces 21a and 22a facing each other.
- the introduction passage is a passage that communicates between the base end portion 20b of the T-die 20 to which the extruder 10 is connected and the manifold.
- the introduction passage extends from the base end portion 20b of the T-die 20 toward the tip end portion 20a on the opposite side. A molten resin extruded from the extruder 10 is introduced into the introduction passage.
- a manifold is a passage extending in the width direction of the T-die 20 (the direction orthogonal to the paper surface in FIG. 4).
- the manifold is formed midway between the base end portion 20b and the tip end portion 20a of the T die 20.
- Molten resin that has passed through the introduction passage is introduced into the manifold.
- the molten resin that has passed through the introduction passage is spread in the width direction of the T-die 20 by passing through the manifold.
- the introduction passageway and manifold form a T.
- the introduction passage corresponds to the vertical bar forming the T shape
- the manifold corresponds to the horizontal bar forming the T shape.
- the slit 23c is a gap that communicates between the tip 20a of the T-die 20 and the manifold.
- the slit 23 c extends in the width direction of the T-die 20 .
- the pair of die blocks 21 and 22 respectively have tip portions including tapered surfaces 21b and 22b that are inclined toward the tips.
- the die block 21 includes a movable lip 21c (flexible lip).
- the movable lip 21c can be locally displaced with the bottom of the concave portion 21d formed at the tip of the die block 21 as a fulcrum by being pushed and pulled by a lip interval adjusting mechanism 31, which will be described later.
- the tip of the die block 21 (lower end in FIG. 4) is a movable lip 21c.
- the die block 22 includes a fixed lip 22c.
- the fixed lip 22c is an example of the mating lip of the present invention.
- the fixed lip 22c is not displaced even when the movable lip 21c is pushed and pulled by a lip gap adjusting mechanism 31, which will be described later.
- the tip of the tip of the die block 22 (lower end in FIG. 4) is a fixed lip 22c.
- the movable lip 21c, the fixed lip 22c, and the recess 21d extend in the width direction of the T-die 20. As shown in FIG.
- the molten resin extruded from the extruder 10 passes through the introduction passage provided inside the T-die 20 and the manifold in this order. At that time, the molten resin is spread in the width direction of the T-die 20 by passing through the manifold.
- the molten resin pushed out in the width direction of the T-die 20 passes through the slit 23c and finally reaches the slit exit formed at the tip of the T-die 20, that is, between the movable lip 21c and the fixed lip 22c. is extruded in a film form from the lip interval S of .
- the width of the molten resin 92 a (see FIG. 1) extruded in the form of a film corresponds to the width of the T-die 20 .
- Embodiment 1 is characterized by including a lip clearance adjusting device 30 described below.
- the lip spacing adjusting device 30 includes a plurality of lip spacing adjusting mechanisms 31 arranged in the width direction of the T-die 20 and adjusting the lip spacing S at each arrangement location.
- the lip gap adjusting mechanism 31 includes an actuator 311 and a connecting member 312 that connects an output shaft 311b of the actuator 311 and the movable lip 21c.
- the actuator 311 includes an actuator body 311a and an output shaft 311b that is a rotating shaft.
- the actuator 311 is, for example, a servomotor (DC servomotor, AC servomotor), a stepping motor, a coreless motor, or a DD motor.
- the connecting member 312 is a rod member (or an adjustment bolt, hereinafter referred to as the rod member 32) whose tip end is screwed to the movable lip 21c and whose base end is connected (fixed) to the output shaft 311b of the actuator 311.
- Rod member 32 is typically made of metal.
- the actuator main body 311a is fixed (for example, screw-fixed) to a holding portion 21e provided on the die block 21 .
- the output shaft 311b of the actuator 311 is connected (fixed) to the proximal end of the rod member 32 whose distal end is screwed to the movable lip 21c while being inserted into the through hole H formed in the holding portion 21e.
- the central axis AX 311b (rotational axis) of the output shaft 311b of the actuator 311 and the central axis AX 32 (rotational axis) of the rod member 32 coincide (substantially coincide).
- a controller 80 is electrically connected to the actuator 311 .
- the control unit 80 controls the direction of rotation (forward direction or reverse direction) and the amount of rotation of the output shaft 311b as described later.
- the actuator 311 rotates the output shaft 311b (and the rod member 32) under the control of the control unit 80 to change the screwing amount of the rod member 32 to the movable lip 21c.
- the movable lip 21c is displaced (pushed and pulled) with respect to the fixed lip 22c, and the lip interval S is adjusted.
- each lip clearance adjusting mechanism 31 is fixed (for example, screw-fixed) to a holding portion 21 e provided on the die block 21 .
- FIGS. 2 and 3 show an example in which the number of lip spacing adjusting mechanisms 31 is 11, the number of lip spacing adjusting mechanisms 31 is not limited to this, and the number of lip spacing adjusting mechanisms 31 is T die 20 (die block 21). The number (1 or more) according to the width of .
- the lip spacing S can be locally adjusted by controlling the rotation direction (forward direction or reverse direction) and the amount of rotation of the output shaft 311b (and the rod member 32). can be done.
- the output shaft 311b (and the rod member 32) is rotated (for example, forward rotation) by the actuator 311 to change (decrease) the screwing amount of the rod member 32 to the movable lip 21c.
- the movable lip 21c is locally displaced with the bottom of the recess 21d as a fulcrum to approach the fixed lip 22c.
- the lip interval S is locally narrowed.
- the thickness of the film-like molten resin (film 93) extruded from the lip gap S is locally reduced.
- the output shaft 311b (and the rod member 32) is rotated (for example, reverse rotation) by the actuator 311 to change (increase) the screwing amount of the rod member 32 to the movable lip 21c.
- the movable lip 21c is locally displaced around the bottom of the recessed portion 21d and separated from the fixed lip 22c.
- the lip interval S is locally widened.
- the thickness of the film-like molten resin (film 93) extruded from the lip gap S locally increases.
- FIG. 5 is a flow chart of an operation example of the lip clearance adjusting device 30 (before starting molding).
- control unit 80 executing a program read from a storage device (not shown) such as a hard disk device to a memory (not shown) such as a RAM (Random Access Memory). be.
- the lip interval measurement unit 71 measures the lip interval (lip gap) (step S11). Specifically, the lip spacing measuring unit 71 measures the lip spacing (lip gap) at multiple positions (multiple positions corresponding to the multiple lip spacing adjusting mechanisms 31) along the width direction of the T-die 20. FIG. This measured lip interval (clearance data) is transferred to the control section 80 .
- step S11 if the lip distances (plurality) measured in step S11 are not uniform (step S12: No), for example, if the lip distances measured at at least one position are outside the allowable range, the control unit 80 Control analysis is performed (step S13), and the actuator 311 of the lip clearance adjusting mechanism 31 corresponding to the position where the lip clearance outside the allowable range is measured is controlled (step S14).
- the control unit 80 adjusts the lip spacing so that the lip spacing becomes uniform (for example, the lip spacing outside the allowable range falls within the allowable range). 2), the lip clearance is locally adjusted by controlling the actuator 311 (rotating direction and amount of rotation of the output shaft 311b) of the lip clearance adjusting mechanism 31 corresponding to the position where the lip clearance outside the allowable range is measured. .
- the lip interval measurement unit 71 measures the lip interval (lip gap) again (step S11).
- steps S13, S14, and S11 are repeatedly executed until the lip intervals (plurality) measured in step S11 become uniform (step S12: No).
- step S11 if the lip distances (plurality) measured in step S11 are uniform (step S12: Yes), that is, if all the lip distances measured at each of the plurality of positions are within the allowable range, the molding is completed. is started (step S15).
- FIG. 6 is a flow chart of an operation example of the lip clearance adjusting device 30 (after molding is started).
- control unit 80 executing a program read from a storage device (not shown) such as a hard disk device to a memory (not shown) such as a RAM (Random Access Memory). be.
- the thickness sensor 70 After the start of molding (step S20), that is, while the film-like molten resin is being extruded from the lip gap S, the thickness sensor 70 detects the film formed by the molten resin extruded from the T-die 20 (lip gap S). is measured (step S21). Specifically, the thickness sensor 70 measures the thickness of the film in real time at multiple positions along the width direction of the T-die 20 (multiple positions corresponding to the multiple lip gap adjusting mechanisms 31). The measured film thickness (thickness data) is transferred to the control unit 80 .
- step S21 if the film thickness (plurality) measured in step S21 is not uniform (step S22: No), for example, if the film thickness measured at at least one position is outside the allowable range, the control unit 80 performs control analysis (step S23), and controls the actuator 311 of the lip gap adjusting mechanism 31 corresponding to the position where the film thickness outside the allowable range is measured (step S24).
- the control unit 80 adjusts the film thickness so that the film thickness becomes uniform (for example, the film thickness outside the allowable range is within the allowable range). ), and by controlling the actuator 311 (rotating direction and amount of rotation of the output shaft 311b) of the lip spacing adjusting mechanism 31 corresponding to the position where the film thickness outside the allowable range is measured, the lip spacing is localized. adjust accordingly.
- the thickness sensor 70 again measures the thickness of the film formed by the molten resin extruded from the T-die 20 (lip gap) (step S21).
- steps S23, S24, and S21 are repeatedly executed until the film thickness (plurality) measured in step S21 becomes uniform (step S22: No).
- step S21 if the thickness (plurality) of the films measured in step S21 is uniform (step S22: Yes), that is, if all the thicknesses of the films measured at each of the plurality of positions are within the allowable range, Adjustment is completed (step S25). As described above, a film having a uniform thickness can be produced.
- FIG. 7 is a graph showing the relationship between the time and the amount of displacement of the movable lip 21c when adjusting the lip spacing S by the lip spacing adjusting device 30. As shown in FIG.
- the lip spacing S when the lip spacing S is adjusted by the lip spacing adjusting device 30, the amount of displacement of the movable lip 21c (the amount of displacement of the movable lip 21c relative to the fixed lip 22c) stabilizes in less than 2 seconds. It can be seen that the lip spacing S can be adjusted in less than a second.
- FIG. 8A is a lip clearance adjusting device 130 of a comparative example.
- the lip spacing adjusting device 130 of the comparative example instead of the actuator 311 and the rod member 32, the distal end of the lip spacing adjusting mechanism 31 is connected (fixed) to the movable lip 21c, and the proximal end A heat bolt 33 connected (fixed) to a holding portion 21f provided on the die block 21 is arranged.
- the heating temperature of a heater (not shown) is increased, the heat bolt 33 thermally expands to increase its length in the axial direction. length decreases.
- the lip gap is adjusted by controlling the heating temperature of the heater and expanding and contracting the heat bolt 33 in its axial direction.
- FIG. 8B is a graph showing the relationship between the time and the amount of displacement of the movable lip 21c when the lip spacing S is adjusted by the lip spacing adjusting device 130 (heat bolt 33) of the comparative example.
- the lip spacing S when the lip spacing S is adjusted by the lip spacing adjusting device 130 (heat bolt 33), it takes about 1600 seconds until the amount of displacement of the movable lip 21c (the amount of displacement of the movable lip 21c relative to the fixed lip 22c) stabilizes. is required.
- the lip spacing S is adjusted by the lip spacing adjusting device 30 (the actuator 311 and the rod member 32), compared to the case where the lip spacing S is adjusted by the lip spacing adjusting device 130 (the heat bolt 33), the desired It can be seen that the time to shift to the value is overwhelmingly short (the lip spacing S can be adjusted very quickly).
- the time required for adjusting the lip interval can be shortened.
- the actuator 311 and the rod member 32 are used as the lip gap adjusting mechanism 31 instead of the heat bolt, and the actuator 311 rotates the rod member 32 to change the screwing amount of the rod member 32 to the movable lip 21c. This is because the lip interval S is adjusted by
- FIG. 9 is a cross-sectional view of a T-die 20 to which a lip clearance adjusting device 30 (Modification 1) is attached.
- the differential screw 34 is a differential screw in which the pitch of the outer thread 341 differs from the pitch of the inner thread 342 (pitch of the outer thread 341>pitch of the inner thread 342).
- the outer thread 341 of the differential screw 34 is screwed into the holding portion 21j provided on the die block 21 .
- a rod 343 is screwed into the inner thread 342 of the differential screw 34 .
- the tip of the differential screw 34 (rod 343) is connected (fixed) to the movable lip 21c. Note that the central axis AX 311b (rotational axis) of the output shaft 311b of the actuator 311 and the central axis AX 34 (rotational axis) of the differential screw 34 coincide (substantially coincide).
- Modification 1 can also achieve the same effects as Embodiment 1, such as shortening the time required to adjust the lip interval.
- Modification 2 In the first embodiment, an example using the actuator 311 including the actuator main body 311a and the output shaft 311b that is a rotating shaft has been described, but the present invention is not limited to this.
- FIG. 10 is a cross-sectional view of a T-die 20 to which a lip clearance adjusting device 30 (Modification 2) is attached.
- a rod member 35 having one end connected to the movable lip 21c and the other end connected to the output shaft 313b of the actuator 313 is used as the connecting member 312 that connects the output shaft 313b of the actuator 313 and the movable lip 21c.
- the central axis AX 313b (rotational axis) of the output shaft 313b of the actuator 313 and the central axis AX 35 (rotational axis) of the rod member 35 coincide (substantially coincide).
- Modification 2 can also achieve the same effects as Embodiment 1, such as shortening the time required to adjust the lip interval.
- Modification 3 11 is a perspective view of the T-die 20 to which the lip gap adjusting device 30 (Modification 3) is attached
- FIG. 12 is a view viewed from the arrow A2 direction in FIG. 11
- FIG. 13 is XIII-XIII in FIG. It is a sectional view.
- a lip clearance adjustment device 30A (modification 3) includes a first lip clearance adjustment mechanism 31A and a second lip clearance adjustment mechanism 31B.
- the first lip spacing adjusting mechanism 31A and the second lip spacing adjusting mechanism 31B are alternately arranged in the width direction of the T-die 20 .
- the first lip gap adjusting mechanism 31A includes an actuator 311 (hereinafter referred to as the first actuator 311A) and a connecting member 312 (hereinafter referred to as the first connecting member 312A) that connects the output shaft 311b of the first actuator 311A and the movable lip 21c. ), and
- the second lip gap adjusting mechanism 31B includes an actuator 311 (hereinafter referred to as a second actuator 311B) and a connecting member 312 (hereinafter referred to as a second connecting member 312B) that connects an output shaft 311b of the second actuator 311B and the movable lip 21c. ), and
- the first actuator 311A is arranged near the movable lip 21c.
- the axial length of the first connecting member 312A connecting the output shaft 311b of the first actuator 311A and the movable lip 21c is L1.
- the second actuator 311B is arranged far from the movable lip 21c so as not to interfere with the first actuator 311A.
- the axial length of the second connecting member 312B connecting the output shaft 311b of the second actuator 311B and the movable lip 21c is L2, which is longer than L2.
- the same effects as in Embodiment 1 can be achieved, such as shortening the time required to adjust the lip interval.
- the arrangement interval L3 of the connecting members 312 can be narrowed compared to the above-described Embodiment 1 (arrangement interval L3 shown in FIG. 12 ⁇ arrangement interval L4 shown in FIG. 3).
- FIG. 14 is a cross-sectional view of a T-die 20 (Modification 4) having a first die block 21A including a movable lip 21Ac and a second die block 21B including a movable lip 21Bc.
- a plurality of first die blocks 21A are arranged in the width direction of the first die block 21A (the direction orthogonal to the paper surface in FIG. 14), and a third lip spacing adjusting mechanism 31A for adjusting the lip spacing S at each arrangement position. It has Similarly, a plurality of second die blocks 21B are arranged in the width direction of the second die block 21B (the direction perpendicular to the paper surface in FIG. 14), and a fourth lip spacing for adjusting the lip spacing S at each arrangement location It has an adjusting mechanism 31B.
- this modification 4 a T-die 20 having a first die block 21A including a movable lip 21Ac and a second die block 21B including a movable lip 21Bc may be used.
- Lip spacing adjusting device 31 Lip spacing adjusting mechanism 31A First lip spacing adjusting mechanism 31B Second lip spacing adjusting mechanism 32 Rod member 33 Heat bolt 34 Differential screw 35 Rod member 40 Cooling roll 50 Conveying roll group 51-58 Conveying roll 60 Winding machine 70 Thickness sensor 71 Lip interval measuring unit 80 Control unit 92a Molten resin 93 Film 311 Actuator 311A First actuator 311B Second actuator 311a Actuator main body 311b Output shaft 312 Connecting member 312A First connecting member 312B Second connecting member 313 Actuator 313a Actuator main body 313b Output shaft 341 Outer screw 342 Inner screw 343 Rod S Lip interval
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
<押出成形装置の全体構成>
まず、図1を参照して、実施の形態1に係る押出成形装置1の全体構成について説明する。図1は、実施の形態1に係る押出成形装置1の全体構成を示す概略図である。
次に、図2~図4を参照して、Tダイ20の構成について説明する。
実施の形態1は、以下に説明するリップ間隔調整装置30を備えることを特徴とする。
次に、上記構成のリップ間隔調整機構31の動作例について説明する。
次に、上記構成のリップ間隔調整装置30の動作例(成形開始前)について説明する。以下に説明するように、成形開始前に、複数位置それぞれのリップ間隔を均一に調整することにより、成形開始後、リップ間隔Sから押し出されるフィルム状の溶融樹脂(フィルム93)の厚さを迅速に均一に調整することができる。
次に、上記構成のリップ間隔調整装置30の動作例(成形開始後)について説明する。
次に、上記構成のリップ間隔調整装置30によりリップ間隔Sを調整する場合の時間と可動リップ21cの変位量との関係について説明する。
次に、比較例について説明する。
上記実施形態1では、アクチュエータ311の出力軸311bと可動リップ21cとを連結する連結部材312として、ロッド部材32を用いた例について説明したが、これに限らない。
上記実施形態1では、アクチュエータ本体311a、及び回転軸である出力軸311bを含むアクチュエータ311を用いた例について説明したが、これに限らない。
図11はリップ間隔調整装置30(変形例3)が取り付けられたTダイ20の斜視図、図12は図11中の矢印A2方向から見た矢視図、図13は図12のXIII-XIII断面図である。
上記実施の形態1では、押出成形用ダイとして、可動リップ21cを含むダイブロック21、固定リップ22cを含むダイブロック22を備えたTダイ20を用いた例について説明したが、これに限らない。
10…押出機
11…溶融樹脂出口
20…Tダイ(押出成形用ダイ)
20a…先端部
20b…基端部
21…ダイブロック
21b…テーパ面
21c…可動リップ
21d…凹部
21e…保持部
21f…保持部
21j…保持部
22…ダイブロック
22b…テーパ面
22c…固定リップ
23c…スリット
30…リップ間隔調整装置
31…リップ間隔調整機構
31A…第1リップ間隔調整機構
31B…第2リップ間隔調整機構
32…ロッド部材
33…ヒートボルト
34…差動ねじ
35…ロッド部材
40…冷却ロール
50…搬送ロール群
51-58…搬送ロール
60…巻取機
70…厚みセンサ
71…リップ間隔測定部
80…制御部
92a…溶融樹脂
93…フィルム
311…アクチュエータ
311A…第1アクチュエータ
311B…第2アクチュエータ
311a…アクチュエータ本体
311b…出力軸
312…連結部材
312A…第1連結部材
312B…第2連結部材
313…アクチュエータ
313a…アクチュエータ本体
313b…出力軸
341…外ねじ
342…内ねじ
343…ロッド
S…リップ間隔
Claims (17)
- 押出成形用ダイの可動リップと相手リップとの間のリップ間隔を調整するリップ間隔調整装置であって、
前記押出成形用ダイの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構を備え、
前記リップ間隔調整機構は、アクチュエータと、前記アクチュエータの出力軸と前記可動リップとを連結する連結部材と、を備えるリップ間隔調整装置。 - 前記アクチュエータは、回転軸である出力軸を含み、
前記連結部材は、先端部が前記可動リップに螺合し、基端部が前記アクチュエータの出力軸に連結されたロッド部材であり、
前記アクチュエータが前記ロッド部材を回転させ当該ロッド部材の前記可動リップに対する螺合量を変化させることにより、前記リップ間隔を調整する請求項1に記載のリップ間隔調整装置。 - 前記アクチュエータは、回転軸である出力軸を含み、
前記連結部材は、先端部が前記可動リップに連結され、基端部が前記アクチュエータの出力軸に連結された差動ねじであり、
前記アクチュエータが前記差動ねじを回転させることにより、前記リップ間隔を調整する請求項1に記載のリップ間隔調整装置。 - 前記アクチュエータは、アクチュエータ本体に対して押し出し又は引き込まれる出力軸を含み、
前記連結部材は、一端部が前記可動リップに連結され、他端部が前記アクチュエータの出力軸に連結されたロッド部材であり、
前記アクチュエータが前記出力軸を押し出し又は引き込むことにより、前記リップ間隔を調整する請求項1に記載のリップ間隔調整装置。 - 前記アクチュエータは、サーボモータを含む請求項1から4のいずれか1項に記載のリップ間隔調整装置。
- 前記リップ間隔調整機構は、第1リップ間隔調整機構、及び第2リップ間隔調整機構を含み、
前記第1リップ間隔調整機構、及び前記第2リップ間隔調整機構は、前記押出成形用ダイの幅方向に交互に配置されており、
前記第1リップ間隔調整機構は、第1アクチュエータと、前記第1アクチュエータの出力軸と前記可動リップとを連結する第1連結部材と、を備え、
前記第2リップ間隔調整機構は、第2アクチュエータと、前記第2アクチュエータの出力軸と前記可動リップとを連結する第2連結部材と、を備え、
前記第1アクチュエータは、前記可動リップの近くに配置され、
前記第2アクチュエータは、前記第1アクチュエータに干渉しないように前記可動リップから遠くに配置されている請求項1に記載のリップ間隔調整装置。 - 前記相手リップは、固定リップである請求項1から6のいずれか1項に記載のリップ間隔調整装置。
- 前記相手リップは、前記可動リップとは別の可動リップである請求項1から6のいずれか1項に記載のリップ間隔調整装置。
- 請求項1から8のいずれか1項に記載のリップ間隔調整装置と、
前記可動リップと、
前記相手リップと、を備えた押出成形用ダイ。 - 請求項8に記載のリップ間隔調整装置と、
前記可動リップを含む第1ダイブロックと、
前記相手リップを含む第2ダイブロックと、を備え、
前記リップ間隔調整機構は、第3リップ間隔調整機構、及び第4リップ間隔調整機構を含み、
前記第3リップ間隔調整機構は、前記第1ダイブロックの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構であり、
前記第4リップ間隔調整機構は、前記第2ダイブロックの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構であり、
前記第3リップ間隔調整機構は、第1アクチュエータと、前記第1アクチュエータの出力軸と前記可動リップとを連結する第1連結部材と、を備え、
前記第4リップ間隔調整機構は、第2アクチュエータと、前記第2アクチュエータの出力軸と前記相手リップとを連結する第2連結部材と、を備える押出成形用ダイ。 - 請求項9又は10に記載の押出成形用ダイを備えた押出成形装置。
- 前記押出成形用ダイの幅方向に沿った複数位置で測定された前記リップ間隔に基づいて、前記リップ間隔が均一となるように、前記アクチュエータを制御する制御部と、をさらに備える請求項11に記載の押出成形装置。
- 前記リップ間隔を、前記押出成形用ダイの幅方向に沿った複数位置で測定するリップ間隔測定部をさらに備え、
前記制御部は、前記リップ間隔測定部により測定された前記リップ間隔に基づいて、前記リップ間隔が均一となるように、前記アクチュエータを制御する請求項12に記載の押出成形装置。 - 前記リップ間隔から押し出される溶融樹脂により形成されるフィルムの厚みを、前記押出成形用ダイの幅方向に沿った複数位置で測定する厚みセンサと、
前記複数位置で測定された前記フィルムの厚みに基づいて、前記フィルムの厚みが均一となるように、前記アクチュエータを制御する制御部と、をさらに備える請求項11に記載の押出成形装置。 - 押出成形用ダイの可動リップと相手リップとの間のリップ間隔を、前記押出成形用ダイの幅方向に沿った複数位置で測定するリップ間隔測定ステップと、
前記複数位置で測定された前記リップ間隔に基づいて、前記リップ間隔が均一となるように、前記押出成形用ダイの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構のアクチュエータを制御する制御ステップと、を備えるリップ間隔調整方法。 - 押出成形用ダイの可動リップと相手リップとの間のリップ間隔から押し出される溶融樹脂により形成されるフィルムの厚みを、前記押出成形用ダイの幅方向に沿った複数位置で測定する厚み測定ステップと、
前記複数位置で測定された前記フィルムの厚みに基づいて、前記フィルムの厚みが均一となるように、前記押出成形用ダイの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構のアクチュエータを制御する制御ステップと、を備えるリップ間隔調整方法。 - 押出成形用ダイの可動リップと相手リップとの間のリップ間隔から溶融樹脂により形成されるフィルムを押し出すステップと、
前記リップ間隔から押し出される前記フィルムの厚みを、前記押出成形用ダイの幅方向に沿った複数位置で測定する厚み測定ステップと、
前記複数位置で測定された前記フィルムの厚みに基づいて、前記フィルムの厚みが均一となるように、前記押出成形用ダイの幅方向に複数配置され、各々の配置箇所で前記リップ間隔を調整するリップ間隔調整機構のアクチュエータを制御する制御ステップと、を備えるフィルム製造方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023506457A JP7561965B2 (ja) | 2021-03-16 | 2021-03-16 | リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 |
| CN202180095820.1A CN117083161A (zh) | 2021-03-16 | 2021-03-16 | 唇间隙调整装置、挤出成型模具、挤出成型装置、调整唇间隙的方法和制造薄膜的方法 |
| PCT/JP2021/010695 WO2022195735A1 (ja) | 2021-03-16 | 2021-03-16 | リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 |
| US18/278,172 US20240116232A1 (en) | 2021-03-16 | 2021-03-16 | Lip gap adjusting device, extrusion molding die, extrusion molding apparatus, method for adjusting lip gap, and method for manufacturing film |
| EP21931487.9A EP4309871A4 (en) | 2021-03-16 | 2021-03-16 | LIP DISTANCE ADJUSTING DEVICE, EXTRUSION FORMING TOOL, EXTRUSION FORMING DEVICE, LIP DISTANCE ADJUSTING METHOD AND FILM MANUFACTURING METHOD |
| KR1020237034345A KR20230156738A (ko) | 2021-03-16 | 2021-03-16 | 립 간격 조정 장치, 압출 성형용 다이, 압출 성형 장치, 립 간격 조정 방법, 및 필름 제조 방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2021/010695 WO2022195735A1 (ja) | 2021-03-16 | 2021-03-16 | リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022195735A1 true WO2022195735A1 (ja) | 2022-09-22 |
Family
ID=83320195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/010695 Ceased WO2022195735A1 (ja) | 2021-03-16 | 2021-03-16 | リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240116232A1 (ja) |
| EP (1) | EP4309871A4 (ja) |
| JP (1) | JP7561965B2 (ja) |
| KR (1) | KR20230156738A (ja) |
| CN (1) | CN117083161A (ja) |
| WO (1) | WO2022195735A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024185197A1 (ja) * | 2023-03-03 | 2024-09-12 | 株式会社日本製鋼所 | 押出成形装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118906420B (zh) * | 2024-07-26 | 2025-11-07 | 九江冠力新材料有限公司 | 一种模头唇口开度方法 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320825A (ja) * | 1991-03-01 | 1992-11-11 | Reifenhaeuser Gmbh & Co Mas Fab | プラスチックフィルムの製造装置 |
| JP2005186481A (ja) * | 2003-12-25 | 2005-07-14 | Mitsubishi Heavy Ind Ltd | ダイ用アクチュエータ、及び、押出成形機 |
| JP2007296673A (ja) * | 2006-04-28 | 2007-11-15 | Japan Steel Works Ltd:The | 位置対応付け装置及び位置対応付け方法 |
| WO2010116842A1 (ja) * | 2009-04-10 | 2010-10-14 | 住友重機械モダン株式会社 | Tダイ用リップ駆動部 |
| JP2013052574A (ja) | 2011-09-02 | 2013-03-21 | Japan Steel Works Ltd:The | ダイリップ調整装置 |
| JP2016036926A (ja) * | 2014-08-05 | 2016-03-22 | 住友重機械モダン株式会社 | ダイリップ駆動構造 |
| JP2020152097A (ja) * | 2019-03-15 | 2020-09-24 | 株式会社日本製鋼所 | 樹脂フィルム製造装置及び樹脂フィルム製造方法 |
| JP2020179519A (ja) * | 2019-04-23 | 2020-11-05 | 三菱ケミカル株式会社 | 押出成形用ダイ及びリップギャップの測定方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2765492A (en) * | 1955-02-23 | 1956-10-09 | Du Pont | Extrusion apparatus |
| JPS6050133B2 (ja) * | 1981-11-05 | 1985-11-07 | 東芝機械株式会社 | 口金隙間調整方法 |
| US5051082A (en) * | 1989-02-17 | 1991-09-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Apparatus for adjusting die lips for extrusion molding |
| JPH0516271A (ja) * | 1991-07-17 | 1993-01-26 | Sekisui Chem Co Ltd | 積層体の製造方法並びに貼付剤の製造方法 |
| DE19535930C1 (de) * | 1995-09-27 | 1997-01-09 | Heinz Dr Ing Gros | Vorrichtung zur veränderlichen Begrenzung eines flachen Fließkanals und Verfahren zum Austragen einer Massebahn mit veränderlicher Geometrie |
| US5888556A (en) * | 1997-03-11 | 1999-03-30 | The Cloeren Company | Thermal translator device |
| JP3868428B2 (ja) * | 2004-02-24 | 2007-01-17 | 株式会社日本製鋼所 | ダイリップ調整装置 |
| CN102744819B (zh) * | 2012-06-19 | 2014-06-18 | 广州市合诚化学有限公司 | 一种流延机及其用于生产防水透气膜的方法 |
| EP3381650B1 (en) * | 2015-11-27 | 2023-01-18 | Sumitomo Heavy Industries Modern, Ltd. | Film forming device |
-
2021
- 2021-03-16 US US18/278,172 patent/US20240116232A1/en active Pending
- 2021-03-16 JP JP2023506457A patent/JP7561965B2/ja active Active
- 2021-03-16 WO PCT/JP2021/010695 patent/WO2022195735A1/ja not_active Ceased
- 2021-03-16 CN CN202180095820.1A patent/CN117083161A/zh active Pending
- 2021-03-16 EP EP21931487.9A patent/EP4309871A4/en active Pending
- 2021-03-16 KR KR1020237034345A patent/KR20230156738A/ko active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320825A (ja) * | 1991-03-01 | 1992-11-11 | Reifenhaeuser Gmbh & Co Mas Fab | プラスチックフィルムの製造装置 |
| JP2005186481A (ja) * | 2003-12-25 | 2005-07-14 | Mitsubishi Heavy Ind Ltd | ダイ用アクチュエータ、及び、押出成形機 |
| JP2007296673A (ja) * | 2006-04-28 | 2007-11-15 | Japan Steel Works Ltd:The | 位置対応付け装置及び位置対応付け方法 |
| WO2010116842A1 (ja) * | 2009-04-10 | 2010-10-14 | 住友重機械モダン株式会社 | Tダイ用リップ駆動部 |
| JP2013052574A (ja) | 2011-09-02 | 2013-03-21 | Japan Steel Works Ltd:The | ダイリップ調整装置 |
| JP2016036926A (ja) * | 2014-08-05 | 2016-03-22 | 住友重機械モダン株式会社 | ダイリップ駆動構造 |
| JP2020152097A (ja) * | 2019-03-15 | 2020-09-24 | 株式会社日本製鋼所 | 樹脂フィルム製造装置及び樹脂フィルム製造方法 |
| JP2020179519A (ja) * | 2019-04-23 | 2020-11-05 | 三菱ケミカル株式会社 | 押出成形用ダイ及びリップギャップの測定方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4309871A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024185197A1 (ja) * | 2023-03-03 | 2024-09-12 | 株式会社日本製鋼所 | 押出成形装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4309871A1 (en) | 2024-01-24 |
| JPWO2022195735A1 (ja) | 2022-09-22 |
| US20240116232A1 (en) | 2024-04-11 |
| EP4309871A4 (en) | 2025-01-08 |
| CN117083161A (zh) | 2023-11-17 |
| JP7561965B2 (ja) | 2024-10-04 |
| KR20230156738A (ko) | 2023-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4749531A (en) | Method and apparatus of extruding a plastic pipe under control of the wall thickness of the extruded plastic pipe | |
| WO2022195735A1 (ja) | リップ間隔調整装置、押出成形用ダイ、押出成形装置、リップ間隔調整方法、及びフィルム製造方法 | |
| US20100266749A1 (en) | Method of using image data in the production of thin wall extrusions | |
| EP3793798A1 (de) | Verfahren zur automatisierten regelung der grösse eines spaltes einer düsenanordnung und steuer- und/oder regelsystem | |
| US20160052192A1 (en) | Method for regulating the thickness profile of inline-oriented films | |
| US20100109180A1 (en) | Process for cooling flat plastic products | |
| CN101568975B (zh) | 绝缘电线的制造方法及其制造装置 | |
| NL9400453A (nl) | Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal. | |
| CN107666997A (zh) | 用于制造膜幅的设备和用于操作这种设备的方法 | |
| CN112384353A (zh) | 自动化调整喷嘴机构缝隙尺寸方法和控制和/或调整系统 | |
| JPS5935330B2 (ja) | ブロ−ヘツド付き押出機 | |
| KR20150113857A (ko) | 연신 필름의 제조방법 및 필름 연신설비 | |
| JP2014162186A (ja) | 押し出しtダイ装置 | |
| CN111688153B (zh) | 树脂膜制造装置及树脂膜制造方法 | |
| US20160310987A1 (en) | Extruding machine and method of operating same | |
| US20020070478A1 (en) | Apparatus and method for measuring and of controlling the gap between polymer sheet cooling rolls | |
| JPS6140537B2 (ja) | ||
| JP2004122434A (ja) | フィルム・シートのプロファイル制御方法 | |
| CN120826308A (zh) | 挤出模制设备 | |
| CN120916883A (zh) | 挤出成型设备 | |
| JP2021049741A (ja) | 二軸配向フィルムの製造方法 | |
| JP3924229B2 (ja) | プラスチック成形装置における厚みプロファイル制御方法 | |
| JP6213119B2 (ja) | ゴム押出物の温度測定方法および温度測定ユニット | |
| JP2019081336A (ja) | 外観不良判定装置、フィルム状物の製造装置、及び樹脂フィルムの製造方法 | |
| JP4581237B2 (ja) | シートの製造方法 |
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: 21931487 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2023506457 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18278172 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202317061264 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202180095820.1 Country of ref document: CN |
|
| ENP | Entry into the national phase |
Ref document number: 20237034345 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020237034345 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2021931487 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2021931487 Country of ref document: EP Effective date: 20231016 |