WO2023223853A1 - 搬送装置及び搬送方法 - Google Patents

搬送装置及び搬送方法 Download PDF

Info

Publication number
WO2023223853A1
WO2023223853A1 PCT/JP2023/017196 JP2023017196W WO2023223853A1 WO 2023223853 A1 WO2023223853 A1 WO 2023223853A1 JP 2023017196 W JP2023017196 W JP 2023017196W WO 2023223853 A1 WO2023223853 A1 WO 2023223853A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
conveyance
die
feeding
guide
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
Application number
PCT/JP2023/017196
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
勇一 渡辺
雄太 水上
拓也 萩原
哲郎 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Shibaura Machine Co Ltd
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 Shibaura Machine Co Ltd filed Critical Shibaura Machine Co Ltd
Priority to JP2023556714A priority Critical patent/JP7387082B1/ja
Publication of WO2023223853A1 publication Critical patent/WO2023223853A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B29C48/03—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
    • 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
    • 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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling

Definitions

  • the present invention relates to a sheet conveying device and a sheet conveying method.
  • the paper passing device disclosed in Japanese Patent Application Laid-open No. 2020-1855 is provided in a region away from both ends of the transport roll to the outside of the transport region where the film is transported, and a linear guide member is provided along the transport path of the film.
  • the guide member includes a plurality of guiding members that are caused to travel along the guide member, and a fixing portion that is provided on each of the linear guide members and connects a string for passing the string to the linear guide member.
  • An object of the present invention is to automatically convey a sheet discharged from a T-die.
  • the conveyance device that conveys the sheet discharged from the T-die in the longitudinal direction includes a sheet-like guide portion to which the sheet is adhered by contacting the leading end of the sheet discharged from the T-die. and a plurality of conveyance rolls for conveying the sheet, and a guide drive mechanism that moves a guide section along a sheet conveyance path formed by the conveyance rolls.
  • the conveying method of conveying the sheet discharged from the T-die in the longitudinal direction is such that the leading end of the sheet discharged from the T-die is brought into contact with a sheet-shaped guide portion.
  • the sheet is introduced into the conveyance path by moving the guide section along the sheet conveyance path formed by the plurality of conveyance rolls.
  • FIG. 1 is a block diagram showing the overall configuration of a film manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram showing a conveying device according to an embodiment of the present invention.
  • FIG. 3 is a block diagram showing a conveying device according to an embodiment of the present invention.
  • FIG. 4 is a diagram showing a feeding sheet of the conveying device according to the embodiment of the present invention, and is a plan view parallel to the sheet surface.
  • FIG. 5 is a diagram showing the cutting mechanism of the conveyance device according to the embodiment of the present invention, and is a diagram seen from the direction of arrow V in FIG. 2.
  • FIG. 6 is a bottom view showing the conveyance device and the exit portion of the feeding sheet conveyance path according to the embodiment of the present invention.
  • FIG. 7 is a diagram showing the configuration of the separation mechanism of the transport device according to the embodiment of the present invention, and is a diagram seen from the direction of arrow VII in FIG. 6.
  • FIG. 8 is a diagram for explaining the conveyance method according to the embodiment of the present invention, and is a diagram showing a state before the sheet is adhered to the feeding sheet.
  • FIG. 9 is a diagram for explaining the conveyance method according to the embodiment of the present invention, and is a diagram showing a state in which a sheet is adhered to a feeding sheet.
  • FIG. 10 is a diagram for explaining a conveyance method according to an embodiment of the present invention, and is a diagram showing a state in which a sheet is introduced into a conveyance path.
  • FIG. 11 is a diagram for explaining the conveyance method according to the embodiment of the present invention, and is a diagram showing a feeding sheet and a state in which the sheet is collected by a collection device.
  • FIG. 12 is a plan view showing a feeding sheet of a conveyance device according to a comparative example of the embodiment of the present invention.
  • the film manufacturing apparatus 1000 is, for example, an apparatus for manufacturing PMMA stretched film products. As shown in FIG. 1, the film manufacturing apparatus 1000 includes a raw material supply device 101, an extruder 102, a T-die 103, a casting machine 104, and a longitudinal stretching machine 105. Since the raw material supply device 101, the extruder 102, the T-die 103, and the longitudinal stretching machine 105 can each adopt a known configuration, detailed illustrations and explanations will be omitted and they will be briefly explained below.
  • the raw material supply device 101 is supplied with raw materials for film products (for example, resins and plasticizers), and supplies the supplied raw materials to the extruder 102.
  • raw materials for film products for example, resins and plasticizers
  • the extruder 102 melt-kneads the raw material supplied from the raw material supply device 101 and supplies it to the T-die 103.
  • the extruder 102 for example, a single screw extruder having one screw is used.
  • the extruder 102 may be a twin-screw kneading extruder.
  • the T-die 103 molds the molten material supplied from the extruder 102 into a sheet (band) by discharging it from the slit 103a (see FIG. 2).
  • sheet S the material molded into a sheet
  • the T-die 103 continuously discharges the sheet S in the longitudinal direction.
  • the casting machine 104 cools and solidifies the sheets S continuously discharged from the T-die 103.
  • the configuration of the casting machine 104 will be explained in detail later.
  • the sheet S cooled and solidified by the casting machine 104 is guided to a longitudinal stretching machine 105.
  • the longitudinal stretching machine 105 stretches the sheet S in the longitudinal direction, which is the transport direction, to reduce the thickness and produce a film product.
  • the film product is fed to a first transverse stretcher 106 and stretched in the transverse direction by the first transverse stretcher 106 .
  • the lateral direction is a direction perpendicular to both the transport direction and the thickness direction of the film product. That is, the lateral direction corresponds to the width direction of the film product.
  • the film product stretched in the longitudinal direction by the longitudinal stretcher 105 is further stretched in the transverse direction by the transverse stretcher, and the liquid that is impregnated into the film product by the extraction dryer is, for example, Plasticizers are extracted. Then, a film product is obtained by being stretched in the transverse direction again by a transverse stretching machine, and the film product is wound into a roll by a winding machine.
  • the direction in which the sheet S is conveyed is also referred to as the "conveyance direction”
  • the direction that defines the thickness of the sheet S is also referred to as the “thickness direction”
  • the direction perpendicular to the conveyance direction and the thickness direction is also referred to as the "left-right direction.”
  • the conveyance direction corresponds to the longitudinal direction of the sheet S, and corresponds to the above-mentioned longitudinal direction.
  • the left-right direction is a direction that defines the sheet surface of the sheet S together with the conveyance direction, and corresponds to the width direction and lateral direction of the sheet S described above.
  • the casting machine 104 includes a cooling roll R that cools the sheet S discharged from the T-die 103, and a transport device 100 that transports the sheet S cooled by the cooling roll R.
  • the cooling roll R is provided below the T-die 103 so as to be located substantially directly below the slit 103a of the T-die 103.
  • the sheet S discharged from the T-die 103 moves vertically downward due to its own weight and is placed on the outer peripheral surface of the cooling roll R.
  • the cooling roll R is provided so that its central axis extends in the left-right direction (direction perpendicular to the plane of the paper in FIG. 2), and is driven to rotate around the central axis at a predetermined speed.
  • the width of the cooling roll R in the left-right direction of the portion in contact with the sheet S is formed to be at least larger than the width of the sheet S. Cooling water (liquid) passes through the inside of the cooling roll R.
  • the sheet S is cooled and solidified by riding on the outer peripheral surface of the cooling roll R and rotating around the cooling roll R. By cooling and solidifying the sheet S, the sheet S can be pulled without being cut by a feeding sheet 20, which will be described later.
  • the casting machine 104 may further include a cooling mechanism that sprays cooling air onto the sheet S placed on the outer peripheral surface of the cooling roll R. Furthermore, as a method of cooling and solidifying the sheet S using the casting machine 104, instead of cooling and solidifying using a single cooling roll R shown in FIG. 2, two cooling rolls R, a forming roll and a touch roll, are provided, and two cooling rolls A so-called touch roll method may be adopted in which the sheet S is supplied between R and cooled.
  • the sheet S immediately after discharge from the T-die 103 is started is discarded until its properties are stabilized because the properties of the molten resin, temperature, pressure, etc. are not stable. Therefore, a dust port (not shown) for discarding the sheet S is provided below the cooling roll R. Until the properties of the sheet S from the T-die 103 become stable, the sheet S is not transported by the transport device 100, but is moved by the rotation of the cooling roll R, and eventually detached from the cooling roll R due to its own weight and directed toward the dust port. It falls and is discarded.
  • the conveying device 100 has a plurality of conveying rolls 10 for conveying the sheet S, and the sheet S is bonded by contacting the leading end of the sheet S discharged from the T-die 103.
  • a feeding sheet 20 serving as a sheet-like guide section, a guide drive mechanism 30 that moves the feeding sheet 20 along the conveyance path of the sheet S formed by the conveyance roll 10, and a sheet discharged from the T-die 103.
  • It includes a cutting mechanism 40 that cuts S in the longitudinal direction and a control device 80 that controls the operation of the conveying device 100.
  • the plurality of transport rolls 10 are provided on the downstream side of the cooling roll R in the transport direction, and transport the sheet S cooled by the cooling roll R.
  • the plurality of transport rolls 10 form a transport path that transports the sheet S downstream.
  • the width of the plurality of transport rolls 10 at the portion where the sheet S contacts is formed to be at least larger than the width of the sheet S.
  • the plurality of transport rolls 10 are each rotationally driven around a central axis at a predetermined direction and speed by a drive source (not shown) such as an electric motor.
  • the central axes of the plurality of transport rolls 10 are each provided parallel to the central axis of the cooling roll R. In FIG. 2, the rotation direction of the transport roll 10 is shown by an arrow.
  • the conveyance device 100 is further provided with a nip roll 11 that, together with the conveyance roll 10, presses the sheet S toward the conveyance roll 10 while sandwiching the sheet S therebetween. Thereby, the driving force from the transport roll 10 acts effectively on the sheet S. Furthermore, in the conveyance device 100, one or more (in this embodiment, a plurality of) free rolls 12 are provided between the conveyance rolls 10, on which the sheet S to be conveyed is wound. The free roll 12 is not driven to rotate by a motor or the like, but is driven to rotate as the sheet S is conveyed.
  • the feeding sheet 20 is a sheet-like member made of a resin material, more specifically, the same material as the sheet S and the film product. By making the feeding sheet 20 the same material as the film product, it is possible to manufacture the feeding sheet 20 by using parts that are discarded such as scraps of the film product that are produced when making the product, resulting in energy saving and low cost. It can be reduced to cost.
  • the feeding sheet 20 is a non-stretched sheet.
  • the feeding sheet 20 is a non-stretched sheet.
  • the guide drive mechanism 30 includes a plurality of clips 31 that clip the feeding sheet 20, a clip moving mechanism 35 that moves the clips 31, and a position that detects the position of the feeding sheet 20. It has a sensor 32.
  • the clip moving mechanism 35 includes a pair of endless chains 36 forming a circulation path, a sprocket 37 that meshes with the chain 36 to drive the chain 36 in circulation, and a sprocket 37 that drives the sprocket 37. It has an electric motor 38.
  • the pair of chains 36 are provided at intervals in the left-right direction of the seat S, and are provided symmetrically to each other in the left-right direction of the seat S. Specifically, the left chain 36 is located to the left of the left end of the sheet S to be conveyed, and the right chain 36 is located to the right of the right end of the sheet S. That is, the pair of chains 36 are provided outside both ends of the seat S in the left-right direction in the left-right direction.
  • the pair of chains 36 constitute a circulation path including a path along the conveyance path of the sheet S.
  • a circulation path is configured such that the sheet S is guided to the outer periphery of the cooling roll R again through the outer periphery of the cooling roll R to which the sheet S is supplied, a transport path formed by the transport roll, and a recovery device 70 described later.
  • Ru A sprocket 37 is engaged with each of the pair of chains 36, and when the sprocket 37 is rotationally driven by an electric motor 38, a driving force that circulates the chain 36 that is engaged with the sprocket 37 is exerted.
  • a plurality of sprockets 37 are provided so that the chain 36 moves along a predetermined circulation path.
  • a sprocket 37 is provided at a position corresponding to the transport roll 10 so that a part of the circulation path of the chain 36 follows the transport path of the sheet S by the transport roll 10.
  • the driving force of the electric motor 38 may be transmitted to all of the plurality of sprockets 37, or the driving force of the electric motor 38 may be transmitted to some of the sprockets 37, and the remaining sprockets are driven to rotate as the chain 36 is driven. Note that in FIG. 2, only a single sprocket 37 is illustrated for convenience of explanation. Further, in FIG. 2, the driving direction of the pair of chains 36 is shown by broken line arrows.
  • the plurality of clips 31 are provided on the chain 36 at predetermined intervals along the circulation path that the chain 36 constitutes. As shown in FIG. 4, the left and right clips 31 are provided on the chain 36 so that they are symmetrical to each other in the left-right direction, in other words, so that their positions in the conveyance direction correspond to each other.
  • the clip 31 can adopt a known configuration as long as it can grip the feeding sheet 20, so a detailed explanation will be omitted.
  • the clip 31 may have a structure in which the sheet S is held between a pair of magnets provided in a groove in the main body, for example.
  • the feeding sheet 20 is held at both ends (both edges) in the left and right direction by left and right clips 31.
  • the leading end of the feeding sheet 20 is formed to be inclined toward the front in the conveying direction from one side (right side in the figure) to the other side (left side in the figure) in the left-right direction. That is, the leading end of the feeding sheet 20 in the conveyance direction is inclined with respect to the left-right direction and the conveyance direction.
  • the rear end portion of the feeding sheet 20 is formed parallel to the left-right direction.
  • the feeding sheet 20 is formed into a right-angled trapezoid (vertical trapezoid) with an angle smaller than 90° located at the front (front end side) in the conveyance direction.
  • the inclination of the leading end of the feeding sheet 20 is set based on the discharge speed of the sheet S from the T-die 103 (conveying speed of the sheet S), the width of the sheet S, the moving speed of the cutter 41 (described later) by the cutting mechanism 40, etc. be done.
  • the feeding sheet 20 is formed in the shape of a right-angled trapezoid, the left end portion is held by more clips 31 than the right end portion.
  • the rear part of the feeding sheet 20 is held evenly on both sides by a combination of a pair of clips 31 facing each other in the left-right direction, whereas the front part is held only on the left side in the left-right direction by the clips 31.
  • the left side of the leading end of the feeding sheet 20 is gripped by the clip 31, whereas the right clip 31, which is located at the same position in the conveying direction as the clip 31 gripping the left side of the leading end, is The feeding sheet 20 is not gripped.
  • the clip 31 is moved along the conveyance path of the sheet S on the outside of the sheet S in the left-right direction by the chain 36 being driven in circulation by the clip moving mechanism 35. Therefore, the feeding sheet 20 held by the clip 31 is conveyed along the conveyance path of the sheet S while contacting the cooling roll R and the conveyance roll 10. That is, the moving direction of the feeding sheet 20 corresponds to the conveyance direction of the sheet S.
  • the position sensor 32 detects the feeding sheet 20 held by the clip 31 and conveyed by the clip moving mechanism 35.
  • the position sensors 32 are provided at a plurality of predetermined positions on the circulation path formed by the chain 36.
  • the position of the feeding sheet 20 is grasped by the position sensor 32 detecting the feeding sheet 20. Further, the position sensor 32 is located at least at a position that is a predetermined distance upstream along the circulation path from the entrance of the conveyance path of the sheet S, that is, the position where the sheet S is discharged from the T-die 103 to the cooling roll R. One will be provided. Hereinafter, the position sensor 32 provided upstream of the entrance of the conveyance path of the sheet S will also be referred to as a start position detection sensor 32a.
  • the position sensor 32 can be any sensor as the position sensor 32 as long as it is possible for the sheet S to pass through the position where the position sensor 32 is provided.
  • the position sensor 32 can be a limit switch or an optical sensor such as an infrared sensor.
  • the detection result of the position sensor 32 is transmitted to the control device 80.
  • the position sensor 32 may be one that directly detects the passage of the feeding sheet 20, or may be one that indirectly detects the passage of the feeding sheet 20 by detecting the passage of the clip 31 that grips the feeding sheet 20. good.
  • the cutting mechanism 40 includes a cutter 41 that cuts the sheet S, and a cutter drive mechanism 45 that drives the cutter 41.
  • the cutter 41 is a rod-shaped member that is attached to the base 42 and has a circular cross section that extends along the conveyance direction of the sheet S.
  • the cutter 41 can be made of any material, such as metal, resin, wood, bamboo, etc., as long as it can withstand the temperature of the sheet S discharged from the T-die 103 without being damaged.
  • the cutter drive mechanism 45 is located at a first position (solid line in FIG. 5) to the right of the right edge of the sheet S and a second position (solid line in FIG. 5) to the left of the left edge of the sheet S.
  • the cutter 41 and the base 42 are moved as shown by the arrows between the center and the middle dashed lines.
  • the cutter drive mechanism 45 causes the cutter 41 to cross the sheet S in the left-right direction.
  • the sheet S discharged from the T-die 103 is cut in the longitudinal direction. Since the sheet S discharged from the T-die 103 is in a softened state at high temperature, it can be easily cut by simply moving the cutter 41, which is a rod-shaped member, across the sheet S in the left-right direction.
  • the arrow in FIG. 5 indicates the rotation direction of the cooling roll R.
  • the cutter drive mechanism 45 can adopt a known configuration as long as it moves the cutter 41 across the left and right directions of the sheet S, so detailed illustrations and explanations will be omitted. ) and a ball screw mechanism can be used.
  • the cutter drive mechanism 45 can also be configured to include, for example, an electric motor and a belt mechanism, or an air cylinder.
  • the cutter drive mechanism 45 may be configured to move the cutter 41 in the vertical direction. According to this, the cutter 41 can be retracted to a position where it does not interfere with the work when the conveyance device 100 is not in operation or during setup. Further, the position of the cutter 41 may be controlled by a servo motor or speed, or may be sensed by various sensors.
  • a separation mechanism 60 for separating the feeding sheet 20 from the clip 31 is provided at the exit of the conveyance path of the sheet S (the terminal end of the conveyance path), and a separation mechanism 60 is provided at the exit of the conveyance path to separate the feeding sheet 20 from the clip 31.
  • a recovery device 70 for recovery is provided.
  • the separation mechanism 60 is provided downstream of the most downstream transport roll 10 among the plurality of transport rolls 10 and the nip roll 11 facing the transport roll 10.
  • the separation mechanisms 60 are provided one each in the left and right directions, and separate the left and right clips 31 and the feeding sheet 20.
  • the left and right separation mechanism 60 rotationally drives a disk-shaped rotary blade 61, a fixed blade 62 having a U-shaped cross section and a recess 62a for receiving the rotary blade 61, and the rotary blade 61. and an electric motor 63, respectively.
  • the separation mechanism 60 is provided with a position sensor 32 (hereinafter also referred to as “separation detection sensor 32b") that detects passage of the feeding sheet 20 on the downstream side of the rotary blade 61 and the fixed blade 62.
  • the separation detection sensor 32b can detect separation of the feeding sheet 20 from the clip 31 by detecting passage of the feeding sheet 20 by the sensor 65.
  • the rotary blade 61 and the fixed blade 62 are provided inside the clip 31 of the guide drive mechanism 30 in the left-right direction.
  • the cutting edge (outer peripheral edge) of the rotary blade 61 enters the recess 62a of the fixed blade 62.
  • the rotary blade 61 is provided so that its rotation axis extends along the left-right direction of the sheet S.
  • the rotary blade 61 and the fixed blade 62 are configured not to move in the left-right direction, but are not limited to this, and may be configured to be movable in the left-right direction.
  • the inner side in the left-right direction of the portion of the feeding sheet 20 that is gripped by the clip 31 is introduced between the rotary blade 61 and the fixed blade 62. be done.
  • the feeding sheet 20 is sandwiched between the rotating rotary blade 61 and the fixed blade 62 and cut. Therefore, the feeding sheet 20 is separated into a portion gripped by the clip 31 on the outside in the left-right direction and an inside portion in the left-right direction by the cutting line represented by the two-dot chain line in FIG. It is desirable that the rotational speed of the rotary blade 61 (peripheral speed of the outer periphery) be equal to or higher than the conveyance speed of the feeding sheet 20.
  • the feeding sheet 20 separated from the clip 31 is collected together with the sheet S by the collection device 70.
  • the recovery device 70 can use, for example, a winder that winds up the sheet S around a bobbin, a crusher that crushes the sheet S, or the like. In this embodiment, a winder is used as the recovery device 70.
  • a winder is used as the recovery device 70.
  • the control device 80 is composed of a microcomputer equipped with a CPU (central processing unit), ROM (read only memory), RAM (random access memory), and I/O interface (input/output interface).
  • the RAM stores data for processing by the CPU
  • the ROM stores CPU control programs, etc. in advance
  • the I/O interface is used for inputting and outputting information with connected devices.
  • the control device 80 is programmed to be able to execute at least the processes necessary to execute the control according to the present embodiment and the modified examples. Note that the control device 80 may be configured as a single device, or may be configured to be divided into a plurality of devices, and each control may be distributed and processed by the plurality of devices.
  • the control device 80 controls the operation of each component of the conveying device 100 so that the sheet S conveying method described below can be executed. Note that the control device 80 is not limited to one that is provided exclusively for the transport device 100, but may be one that is used in common with other devices of the film manufacturing device 1000.
  • the cooling roll R and the transport roll 10 are rotated in a predetermined direction at a predetermined speed.
  • the cooling roll R and the transport roll 10 are controlled so that their rotational speeds are synchronized so that the sheet S is transported at a constant speed.
  • the conveyance device 100 is not driven, and the sheet S is discarded to the dust port via the cooling roll R until its properties become stable (see FIG. 2).
  • the feeding sheet 20 is gripped by the clip 31 of the conveying device 100 in the stopped state so as not to be bent.
  • the feeding sheet 20 is attached to the clip 31 so that its width becomes narrower toward the front in the conveyance direction and is evenly inclined from one side to the other side in the left-right direction (see FIG. 4).
  • the position where the feeding sheet 20 is attached (setup position) is a position that is a predetermined distance away from the start position detection sensor 32a toward the upstream side of the circulation path.
  • the operator operates a conveyance start button, etc., and thereby the chain 36 of the guide drive mechanism 30 is rotationally driven, and the clip 31 and The feeding sheet 20 moves along the circulation path.
  • the moving speed of the feeding sheet 20 (the circulating drive speed of the chain 36) is synchronized with the rotational speed of the cooling roll R. Then, the leading end of the sheet S discharged from the T-die 103 is adhered to the leading end of the feeding sheet 20.
  • the rotary blade 61 of the separation mechanism 60 is also rotated. Note that the rotary blade 61 of the separation mechanism 60 starts rotating when the position sensor 32 detects that the clip 31 and the feeding sheet 20 have moved to the vicinity of the separation mechanism 60 after the guide drive mechanism 30 starts operating. It may be something that
  • the passage of the feeding sheet 20 is detected by the starting position detection sensor 32a.
  • the cutter drive mechanism 45 moves the cutter 41 in the left-right direction to cut the sheet S back and forth in the longitudinal direction (conveying direction).
  • the feeding sheet 20 moves from the start position detection sensor 32a to the T die 103 based on the distance on the conveyance path from the start position detection sensor 32a to the T die 103 and the moving speed of the feeding sheet 20.
  • the travel time to travel to 103 is calculated.
  • the cutter 41 moves and the sheet S is cut at the timing when the above-mentioned movement time has elapsed.
  • a predetermined interval is formed in the longitudinal direction between the sheets S cut in the longitudinal direction.
  • the cut front sheet S is conveyed by the cooling roll R and discarded to the dust port without contacting the feeding sheet 20.
  • the cut rear sheet S passes through the starting position detection sensor 32a and comes into contact with the feeding sheet 20 that has moved below the T-die 103, and is conveyed together with the feeding sheet 20 by the cooling roll R, where it is cooled and solidified. In the process, it is adhered to the feeding sheet 20 (see FIG. 9). In this way, only the cut sheet S on the rear side is adhered to the feeding sheet 20 and is conveyed by the feeding sheet 20.
  • the cutter 41 cuts the sheet S at an appropriate timing according to the moving speed of the feeding sheet 20 so that only the tip of the cut sheet S on the rear side contacts the feeding sheet 20.
  • the timing of cutting by the cutter 41 is determined depending on the conveyance speed of the sheet S, the distance between the T-die 103 and the cooling roll R, the moving speed of the cutter 41, etc., so that only the rear sheet S contacts the feeding sheet 20. stipulated in
  • the sheet S discharged from the T-die 103 contacts the feeding sheet 20 at a relatively high temperature above room temperature. A part of the surface of the feeding sheet 20 is melted by the heat of the sheet S, and is conveyed and cooled by the cooling roll R, so that the molten feeding sheet 20 is bonded to the sheet S.
  • the feeding sheet 20 is made of the same material as the film product, that is, the sheet S. Therefore, the molten feeding sheet 20 can be stably adhered to the sheet S made of the same material.
  • the sheet S adhered to the feeding sheet 20 is pulled by the feeding sheet 20 moved by the guide drive mechanism 30 and introduced into the conveyance path formed by the conveyance roll 10 (see FIG. 10). Thereafter, the sheet S is conveyed to the downstream side of the conveyance path by being rotationally driven by the conveyance roll 10. At this time, the nip roll 11 is spaced apart from the conveyance path (in other words, the outer periphery of the conveyance roll 10). Note that since the feeding sheet 20 moves in synchronization with the rotational speed of the transport roll 10, the movement of the feeding sheet 20 is prevented from interfering with the transport of the sheet S by the transport roll 10.
  • the feeding sheet 20 and the clip 31 are separated by the separation mechanism 60.
  • the feeding sheet 20 and the sheet S separated from the clip 31 are collected by a collection device 70 (see FIG. 11).
  • the nip roll 11 moves toward the transport roll 10 and nip the sheet S between it and the transport roll 10. Since the sheet S is held between the transport roll 10 and the nip roll 11, the sheet S is prevented from being pulled back toward the upstream side due to separation of the feeding sheet 20 from the clip 31. Further, when separation of the feeding sheet 20 from the clip 31 is detected by the separation detection sensor 32b, the rotation of the rotary blade 61 is also stopped. Note that the nip roll 11 may nip the sheet S together with the transport roll 10 before the separation detection sensor 32b detects the feeding sheet 20. Further, in cases where the conveyance distance between the separation mechanism 60 and the collection device 70 is relatively short, the nip roll 11 may not be provided.
  • the driving of the guide drive mechanism 30 is stopped. Thereafter, the sheet S discharged from the T-die 103 to the cooling roll R is transported to the collection device 70 by the driving force applied by the transport roll 10.
  • the sheet S discharged from the T-die 103 and cut by the cutter 41 is introduced into the conveyance path by the feeding sheet 20 and the guide drive mechanism 30, and is conveyed downstream by the conveyance roll 10. Then, the sheet S is separated from the guide drive mechanism 30 by the separation mechanism 60 and collected by the collection device 70. In this manner, in this embodiment, the sheet S can be automatically introduced into the conveyance path and conveyed downstream.
  • the conveyance path is a path from the cooling roll R from which the sheet S is discharged from the T-die 103 to the recovery device 70 via the conveyance roll.
  • the sheet S can be introduced into the conveyance path by the feeding sheet 20 and the guide drive mechanism 30 that moves the feeding sheet 20, so there is no need for a film having a length that spans the entire conveyance path. Therefore, according to the present embodiment, it is possible to suppress the staining of the sheet S, and it is also possible to reduce the possibility that the apparatus will stop due to this.
  • the cutter 41 is moved only in the left-right direction by the cutter drive mechanism 45. Since the sheet S falls vertically downward from the T-die 103, the cut surface of the sheet S is linear (tapered) from one side to the other in the left-right direction depending on the moving speed of the cutter 41. It has a slanted shape.
  • the leading end of the feeding sheet 20 is formed in a tapered shape so as to correspond to the cut surface of the sheet S. Therefore, if the feeding sheet 20 is fed below the T-die 103 at an appropriate timing, only the sheet S on the side after cutting can be bonded to the feeding sheet 20 at its leading end. Thereby, the sheet S can be appropriately conveyed.
  • the feeding sheet 20 has a tapered tip, so that the tip with the narrow width in the left and right direction comes into contact with the conveyance roll 10 first, and the surface of the conveyance roll 10 is brought into contact with the feeding sheet 20 . be towed along.
  • the narrow width of the tip makes it difficult for the tip to sag or lift.
  • the narrow tip comes into contact with the surface of the conveyance roll 10 first, and as the feeding sheet 20 moves, the width of the feeding sheet 20 that comes into contact with the surface of the conveyance roll 10 gradually increases.
  • the feeding sheet 20 functions as a guide for movement along the surface of the transport roll 10. Therefore, the entire width of the feeding sheet 20 can smoothly pass over the surface of the transport roll 10 along the transport roll 10.
  • the conveyance device 100 that conveys the sheet S discharged from the T-die 103 in the longitudinal direction has a plurality of conveyance rolls 10 for conveying the sheet S, and the tip of the sheet S discharged from the T-die 103 contacts with the tip of the sheet S. It includes a sheet-like feeding sheet 20 to which the sheet S is adhered, and a guide drive mechanism 30 that moves the feeding sheet 20 along the conveyance path of the sheet S formed by the conveyance rolls 10.
  • the conveying method of the present embodiment in which the sheet S discharged from the T-die 103 is conveyed in the longitudinal direction is carried out by bringing the leading end of the sheet S discharged from the T-die 103 into contact with the sheet-like feeding sheet 20.
  • the feeding sheet 20 is adhered to the feeding sheet 20, and the feeding sheet 20 is moved along the conveyance path of the sheet S formed by the plurality of conveyance rolls 10, and the sheet S is introduced into the conveyance path.
  • the feeding sheet 20 since the feeding sheet 20 is bonded to the sheet S by contact with the sheet S, the feeding sheet 20 to which the sheet S is bonded can be moved along the conveyance path of the sheet S. , the sheet S is pulled by the feeding sheet 20 and introduced into the conveyance path. In this way, the sheet S discharged from the T-die 103 can be automatically conveyed. Thereby, the sheet discharged from the T-die 103 can be transported safely and with less manpower. Furthermore, since the sheet S can be automatically conveyed, failures in conveyance can be suppressed, and it is also possible to prevent scratches and the like from occurring on the conveyance roll 10.
  • the conveyance device 100 further includes a cutting mechanism 40 that cuts the sheet S discharged from the T-die 103 in the longitudinal direction.
  • the conveyance device 100 further includes a control device 80 that controls the operations of the guide drive mechanism 30 and the cutting mechanism 40, and the control device 80 is configured to drive the guide drive so that the leading end of the rear sheet S cut by the cutting mechanism
  • the guide drive mechanism 30 and the cutting mechanism 40 are controlled so that the adhesive is attached to the guide portion conveyed by the mechanism 30.
  • the sheet S discharged from the T-die 103 can be automatically cut, and the cut sheet S can be automatically transported.
  • the leading end of the feeding sheet 20 is inclined so as to move forward in the conveyance direction from one side to the other side in the left-right direction.
  • the guide drive mechanism 30 includes a clip 31 that grips the feeding sheet 20, and a clip moving mechanism 35 that moves the clip 31, and the feeding sheet A separation mechanism 60 is provided for cutting the feeding sheet 20 such that the feeding sheet 20 is separated from the clip 31.
  • the feeding sheet 20 can be automatically separated from the clip 31.
  • the feeding sheet 20 is made of the same material as the sheet S.
  • the adhesion between the sheet S and the feeding sheet 20 can be stabilized, and the discarded sheet S and film products can be reused, so that costs can be reduced.
  • the feeding sheet 20 is a non-stretched sheet.
  • the cutting mechanism 40 cuts the sheet S in the longitudinal direction by moving the cutter 41 in the left-right direction.
  • the cutting mechanism 40 is not limited to the configuration of the above embodiment as long as it can cut the sheet S in the longitudinal direction.
  • the cutting mechanism 40 crosses the sheet S in the left-right direction by rotating (swinging) a rod-shaped cutter 41 similar to the above embodiment with one longitudinal end as a fulcrum and the other end thereof as a fulcrum. It may also be a device that cuts the sheet S. Further, the cutter 41 is not limited to a rod-like member having a circular cross section as in the above embodiment, but may be, for example, a sharp blade-like member, a rod-like member having a rectangular cross-section, a flat member, or a member having a U-shaped cross section. It may be.
  • the cutting mechanism 40 has a pair of plate-shaped cutting blades provided substantially perpendicular to the surface of the sheet S, and cuts the sheet S by sandwiching and shearing the sheet S in the thickness direction between the pair of cutting blades. It may be something you do.
  • the separation mechanism 60 includes a fixed blade 62 and a rotary blade 61.
  • the separation mechanism 60 is not limited to the configuration of the above embodiment as long as it can separate the feeding sheet 20 from the clip 31.
  • the separation mechanism 60 has a cutting blade that cuts the feeding sheet 20, not the circular rotary blade 61, but a cutting blade with a substantially triangular tip (a so-called razor cutter), and the cutting blade cuts the feeding sheet 20. 20 may be cut.
  • the pair of cutting blades may form a scissors structure to cut the feeding sheet 20.
  • the separation mechanism 60 may be configured to further include one more rotary blade 61 instead of the fixed blade 62 having the recess 62a as in the above embodiment.
  • the material of the feeding sheet 20 is the same as that of the sheet S (film product), and is a non-stretched sheet.
  • the material of the feeding sheet 20 may be any material to which the sheet S is adhered, and is not limited to the configuration of the above embodiment.
  • the feeding sheet 20 may be made of a different resin material than the sheet S.
  • the feeding sheet 20 is held by the clips 31 of the guide drive mechanism 30 on both sides in the left and right direction.
  • the feeding sheet 20 may be gripped by the clip 31 only in either the left or right direction.
  • the feeding sheet 20 can be conveyed in a stable posture.
  • the structure of the chain 36 and the clip 31 need only be provided on one side in the left-right direction, which simplifies the device configuration and reduces costs. It is also possible to save space.
  • the feeding sheet 20 is tilted forward in the conveying direction as the leading end portion goes from one side to the other side in the left-right direction, and the rear end portion is formed perpendicularly to the conveying direction. It has a right-angled trapezoidal shape.
  • the feeding sheet 20 may be formed into a parallelogram in which, in addition to the leading end, the rear end in the conveyance direction is inclined parallel to the inclination of the leading end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Advancing Webs (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
PCT/JP2023/017196 2022-05-16 2023-05-02 搬送装置及び搬送方法 Ceased WO2023223853A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023556714A JP7387082B1 (ja) 2022-05-16 2023-05-02 搬送装置及び搬送方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022080445 2022-05-16
JP2022-080445 2022-05-16

Publications (1)

Publication Number Publication Date
WO2023223853A1 true WO2023223853A1 (ja) 2023-11-23

Family

ID=88835130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/017196 Ceased WO2023223853A1 (ja) 2022-05-16 2023-05-02 搬送装置及び搬送方法

Country Status (3)

Country Link
JP (1) JP7387082B1 (https=)
TW (1) TWI855686B (https=)
WO (1) WO2023223853A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024006802A (ja) * 2022-07-04 2024-01-17 芝浦機械株式会社 シート成形方法及びシート成形装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012009281A (ja) * 2010-06-24 2012-01-12 Toyota Motor Corp 電池の製造方法および電池の製造装置
JP2021154672A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造方法及び製造装置
JP2021154692A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造装置及び製造方法
JP2021154693A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造装置
JP2021194829A (ja) * 2020-06-11 2021-12-27 大建工業株式会社 シート化粧板材の製造装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016217A1 (de) * 2004-04-01 2005-10-20 Brueckner Maschbau Verfahren und Vorrichtung zum Bearbeiten einer Folienbahn
JP4764705B2 (ja) * 2005-11-22 2011-09-07 富士フイルム株式会社 熱可塑性樹脂フィルムの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012009281A (ja) * 2010-06-24 2012-01-12 Toyota Motor Corp 電池の製造方法および電池の製造装置
JP2021154672A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造方法及び製造装置
JP2021154692A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造装置及び製造方法
JP2021154693A (ja) * 2020-03-30 2021-10-07 大建工業株式会社 シート化粧板材の製造装置
JP2021194829A (ja) * 2020-06-11 2021-12-27 大建工業株式会社 シート化粧板材の製造装置

Also Published As

Publication number Publication date
TWI855686B (zh) 2024-09-11
JP7387082B1 (ja) 2023-11-27
TW202348534A (zh) 2023-12-16
JPWO2023223853A1 (https=) 2023-11-23

Similar Documents

Publication Publication Date Title
KR200486950Y1 (ko) 라벨부착장치
JP7387082B1 (ja) 搬送装置及び搬送方法
US20140290456A1 (en) Two-saw assembly high-speed production chop-saw
US6398993B1 (en) Method and apparatus for producing synthetic resin films
US20080237927A1 (en) Method for stretching polymer film and device for recovering slit film edge
KR20190011735A (ko) 라미네이트 장치
CN101590652B (zh) 一种片式元件的全自动分割机及其使用方法
TWI854697B (zh) 搬運裝置及搬運方法
JP7387083B1 (ja) 搬送装置及び搬送方法
CN111471809B (zh) 一种皮革自动化加工系统
EP0104806B1 (en) A veneer splicing apparatus
CN217498115U (zh) 烟机盘纸无胶带接纸装置
JP4203229B2 (ja) シート状物の搬送装置
JPWO2023223853A5 (https=)
JP3169034B2 (ja) ウエブのパスライン変更方法及びその装置
TWI450804B (zh) 黏著帶貼附方法及使用此方法的裝置
TWI891315B (zh) 薄片成形裝置及薄片成形方法
CN114147780A (zh) 一种裁切设备用裁切收料单元及裁切设备
JP2003048194A (ja) ケーブル切断装置
JP2855252B2 (ja) 包装用袋の製造装置
JP2002219748A (ja) 延伸装置
CN118832824A (zh) 片材成型装置和片材成型方法
JP2006159382A (ja) 帯状部材の切断方法及びその装置
JP2024157505A (ja) シート成形装置及びシート成形方法
JP2873668B2 (ja) 木工用縦突きスライサー

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2023556714

Country of ref document: JP

Kind code of ref document: A

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

Ref document number: 23807458

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23807458

Country of ref document: EP

Kind code of ref document: A1