JP2014151590A - T-die device and spatula member used together with t-die device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a T-die device equipped with a spatula member which can remove foreign material attached to a lip surface of a T-die body and a wall surface composing a slit of the T-die body by a simple operation.SOLUTION: A T-die device 1 comprises a movable member 30 which supports a deckle 21 as detachable and is movable along the width direction wd, and a spatula member 60 which is attachable to the movable member when the deckle is detached from the movable member. The spatula member, when supported by the movable member, includes a first sweep member 61 which is arranged in a slit 14, and a second sweep member 62 which is arranged outside of the slit and faces a lip surface 11. When the spatula member is supported by the movable member, the first sweep member removes foreign material attached to a wall surface 14a composing the slit and the second sweep member removes foreign material attached to the lip surface by moving the movable member along the width direction.

Description

  The present invention relates to a spatula member capable of removing foreign matter adhering to a T-die main body and a T-die apparatus provided with the spatula member.

  An extrusion molding apparatus for extruding a film is provided with an extruder for extruding a molten resin containing an additive, and a molten resin in a molten state extruded from the extruder, and the molten resin is molded into a sheet and discharged. A die body. Among these, the T-die body has a lip surface in which a lip opening extending in the width direction for discharging the molten resin is formed. The T-die body is formed with a manifold to which the molten resin extruded from the extruder is supplied and a slit that extends from the manifold to the lip surface to form a lip opening. The molten resin extruded in a molten state from the extruder is supplied to the manifold of the T-die body and spreads in the width direction. Thereafter, the molten resin passes through the slit, is extruded from the lip opening, and is formed into a sheet shape.

  When this extrusion molding apparatus is operated, foreign substances formed by alteration of resin and additives, also called “meani” or “koge”, accumulate on the wall surface defining the lip surface of the T die body and the slit of the T die body. Go. When foreign matter accumulates on the lip surface or the wall surface of the slit, the dimensional accuracy of the manufactured sheet is reduced, or a defective product called a streak defect or a defective product due to the deposit flowing out occurs. Therefore, the adhered foreign matter is periodically removed.

  Conventionally, the following three methods have been mainly employed as a method for removing foreign substances adhering to the T-die body. As a first method, there is a method of disassembling the T-die main body and removing attached foreign matter. In this case, the adhered foreign matter can be removed cleanly, but it takes a lot of time to disassemble and assemble the T-die body. Also, if the T die body is disassembled and reassembled, the assembled state of the T die body changes from the limit of the assembling accuracy, which greatly affects the molding accuracy.

  As a second method, there is a method in which purge resin is supplied to the inside of the T-die body, and the purge resin is discharged together with foreign substances attached to the inside of the T-die body. However, this method cannot sufficiently remove foreign substances firmly adhered to the inside of the T-die body. In addition, the foreign matter adhering to the lip surface of the T-die body cannot be sufficiently removed.

  As a third method, there is a method of removing a foreign material adhering to the lip surface by rubbing a metal spatula on the lip surface while discharging the molten resin from the T-die body. In this case, the foreign matter adhering to the wall surface defining the slit of the T-die body cannot be removed. In addition, when the metal spatula is rubbed against the lip surface, the molten resin may adhere to the operator, which is not preferable.

  Against this background, development of a cleaning device that cleans the T-die body has been partially promoted. As an example of this cleaning device, a schematic perspective view of the cleaning device described in Patent Document 1 is shown in FIG. The cleaning device shown in FIG. 4 moves the metal spatula 502 that contacts the lip surface 511 on which the lip opening 512 is formed, the holding body 503 that holds the metal spatula 502, and the holding body 503 in the width direction of the T-die body 510. A wire 505 to be moved. The metal spatula 502 held by the holding body 503 is slid along the lip surface 511 by moving the holding body 503 in the width direction of the T-die body 510 by the wire 505. Thereby, the foreign material adhering to the lip surface 511 of the T-die main body 510 can be removed. The holding body 503 is provided with a guide 504 that abuts against a side surface 515 along the width direction of the T-die body 510, and the holding body 503 is guided along the width direction of the T-die body 510 by the guide 504. The

Utility model registration No. 3135042

  As described above, foreign matter, also called “meani” or “koge”, adheres not only to the lip surface 511 of the T-die body 510 but also to the wall surface 514a that defines the slit 514 of the T-die body 510. However, the cleaning device described in Patent Document 1 can remove foreign matter adhering to the lip surface 511 of the T-die body 510, but the foreign matter attached to the wall surface 514a that defines the slit 514 of the T-die body 510 is removed. It cannot be removed.

  The present invention has been made in view of the above points, and sufficiently removes foreign matter adhering to both the lip surface of the T-die body and the wall surface defining the slit of the T-die body with a simple operation. An object of the present invention is to provide a spatula member and a T-die device that can be used.

The T-die device according to the present invention is
A T-die main body having a lip surface in which a lip opening extending in the width direction is formed, and a manifold to which molten resin is supplied and a slit extending from the manifold to the lip surface to form the lip opening are formed. The T-die body,
Dickel for guiding the molten resin passing through at least the slit from the width direction,
A movable member that detachably supports the deckle and is movable along the width direction;
A spatula member attachable to the movable member when the deckle is removed from the movable member;
With
The spatula member, in a state supported by the movable member, a first sweep portion disposed in the slit, a second sweep portion disposed outside the slit and facing the lip surface, Have
In a state where the spatula member is supported by the movable member, the first sweep portion is attached to the wall surface defining the slit of the T-die body by moving the movable member along the width direction. The foreign material adhered to the lip surface of the T-die main body can be removed by the second sweep portion.

  In the T-die device according to the present invention, the spatula member may have a T-shape when viewed from the width direction.

  The T-die apparatus according to the present invention may further include driving means for moving the movable member along the width direction.

  In the T-die apparatus according to the present invention, the spatula member may be made of copper or brass.

The spatula member according to the present invention is:
A T-die body having a lip surface in which a lip opening extending in the width direction is formed, wherein a manifold to which molten resin is supplied and a slit extending from the manifold to the lip surface to form the lip opening are formed T-die body,
Dickel for guiding the molten resin passing through at least the slit from the width direction,
A movable member that detachably supports the deckle and is movable along the width direction;
A spatula member used with a T-die device comprising:
The spatula member can be attached to the movable member when the deckle is removed from the movable member,
The spatula member, in a state supported by the movable member, a first sweep portion disposed in the slit, a second sweep portion disposed outside the slit and facing the lip surface, Have
In a state where the spatula member is supported by the movable member, the first sweep portion is attached to the wall surface defining the slit of the T-die body by moving the movable member along the width direction. The foreign material adhered to the lip surface of the T-die main body can be removed by the second sweep portion.

  According to the present invention, there is provided a spatula member and a T-die device capable of sufficiently removing foreign matters adhering to both the lip surface of the T-die body and the wall surface defining the slit of the T-die body with a simple operation. be able to.

FIG. 1a is a schematic longitudinal sectional view showing a T-die apparatus according to an embodiment of the present invention. FIG. 1b is a schematic side view of the T-die device shown in FIG. 1a. 2A and 2B are schematic views showing a spatula member attached to the T-die device shown in FIG. 1, wherein FIG. 2A is a front view and FIG. 2B is a side view. 3 is a schematic view showing a state in which the spatula member shown in FIG. 2 is attached to the T-die device shown in FIG. 1, (a) is a partially enlarged longitudinal sectional view, and (b) is a side view. It is. FIG. 4 is a schematic perspective view of the cleaning device described in Patent Document 1. As shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product. 1 to 3 are diagrams for explaining an embodiment of a T-die apparatus according to the present invention. 1a is a schematic longitudinal sectional view showing a T-die device, and FIG. 1b is a schematic side view of the T-die device shown in FIG. 1a.

  As shown in FIGS. 1a and 1b, the T-die device 1 includes a T-die body 10 having a lip surface 11 in which a lip opening 12 extending in the width direction wd is formed. The molten resin 2 supplied to the T-die body 10 from an extruder (not shown) is formed in a sheet shape (film shape) and is discharged from the lip opening 12.

  In the present specification, the “width direction wd” refers to the longitudinal direction in which the lip opening 12 extends unless otherwise specified, and is referred to as “first direction wd” in the following description. Accordingly, the “first direction wd” corresponds to a direction connecting the left and right sides of the sheet in FIG. In addition, a direction orthogonal to both the first direction wd and the direction in which the molten resin 2 is discharged from the lip opening 12 is referred to as a “second direction td”. Therefore, the “second direction td” corresponds to a direction connecting the left and right sides of the paper surface in FIG. The “second direction td” corresponds to the “thickness direction” of the T-die body 10. Further, in the present embodiment, the direction in which the molten resin 2 is discharged from the lip opening 12 coincides with the vertical direction.

  The T-die body 10 has a prismatic shape having a hexagonal bottom surface. In the side view shown in FIG. 1B, the T-die body 10 is formed with a constant length (thickness) along a second direction td that forms the thickness direction of the T-die body 10 from vertically upward to downward. The first region 10a is connected to the lower end of the first region 10a, and the second region 10b becomes thinner, that is, tapers as it goes downward along the vertical direction. In the present embodiment, the lip surface 11 constitutes the bottom surface of the tapered second region 10b and is arranged along the horizontal plane.

  The T-die body 10 is formed with a manifold 13 to which the molten resin 2 is supplied from an unillustrated extruder and a slit 14 that extends from the manifold 13 to the lip surface 11 to form a lip opening 12. Among these, the manifold 13 is formed as a columnar or columnar space, as shown in FIG. 1b, and extends through the first direction wd of the T die body 10, that is, through the T die body 10 in the first direction wd. ing. A supply path 15 is connected to the upper portion of the central portion of the manifold 13 in the first direction wd, and the molten resin 2 is supplied from the supply path 15 to the manifold 13.

  On the other hand, the slit 14 is formed as an elongated groove, and has a rectangular shape in a cross section perpendicular to the longitudinal direction, as understood from a side view shown in FIG. The elongated groove forming the slit 14 extends over the first direction wd of the T die body 10, that is, through the T die body 10 in the first direction wd. The slit 14 forms a lip opening 12 for discharging the molten resin 2 formed into a film shape on the lip surface 11.

  Also, as shown in FIGS. 1a and 1b, the T-die device 1 is disposed in the slit 14 with a pair of deckles 21 that are spaced apart from each other in the first direction wd, and above the deckles 21. In the manifold 13 and the slit 14, a pair of upper deckles 23 that are spaced apart from each other in the first direction wd are provided.

  Among these, each deckle 21 is movable in the slit 14 along the first direction wd. Each deckle 21 has a surface 21a that forms an inner surface in the first direction wd. The surface 21 a of each deckle 21 faces the surface 21 a of the other deckle 21. The surface 21a of the deckle 21 restricts the movement of the molten resin 2 passing through the slit 14 in the first direction wd, and guides the movement of the molten resin 2 in the slit 14. In the illustrated example, the surface 21a of each deckle 21 spreads outward in the first direction wd as it goes downward along the vertical direction.

  On the other hand, each upper deckle 23 is movable along the first direction wd in the manifold 13 and the slit 14. Each upper deckle 23 has a surface 23a that forms an inner surface in the first direction wd. The surface 23 a of each upper deckle 23 faces the surface 23 a of the other upper deckle 23. The surface 23a of the upper deckle 23 restricts the movement of the molten resin 2 passing through the manifold 13 and the slit 14 in the first direction wd, and guides the movement of the molten resin 2 in the slit 14. It has become. In the illustrated example, the surface 23a of each upper deckle 23 spreads outward in the first direction wd as it goes downward along the vertical direction.

  Further, as shown in FIGS. 1a and 1b, the T-die device 1 supports the deckle 21 so as to be removable, and can move the movable member 30 along the first direction wd, and the movable member 30 in the first direction wd. Drive means 40 for movement along the line.

  First, the movable member 30 will be described. In the present embodiment, the movable member 30 is composed of a rod-shaped member extending in the first direction wd. An insertion hole 24 extending in the first direction wd is formed on the outer surface of the deckle 21 in the first direction wd, and one end of a rod-shaped movable member 30 is inserted into the insertion hole 24. Furthermore, a female screw hole (not shown) extending from the second direction td perpendicular to the first direction wd so as to communicate with the insertion hole 24 is formed in the deckle 21, and the set screw 22 is screwed into the female screw hole. Has been. The tip of the set screw 22 screwed into the female screw hole presses the rod-shaped movable member 30, whereby the deckle 21 is fixed to the movable member 30.

  Next, the driving means 40 will be described. As shown in FIG. 1 a, the driving means 40 is disposed in parallel to the movable member 30 extending in the first direction wd, and is connected to the ball screw 42 driven by the motor 41 and the ball screw 42 and the movable member 30. Member 46. The connecting member 46 has a screw hole 44 screwed into the ball screw 42, and holds the movable member 30 on the other hand.

  When the ball screw 42 is rotated by the motor 41, the connecting member 46 having the screw hole 44 screwed into the ball screw 42 slides along the ball screw 42 and moves in the axial direction of the ball screw 42. When the connecting member 46 moves in the axial direction, the movable member 30 held by the connecting member 46 also moves in the axial direction of the ball screw 42, that is, the first direction wd. By such an operation, the driving unit 40 can move the movable member 30 along the first direction wd.

  In the illustrated example, the upper deckle 23 is also held by the connecting member 46 via the second movable member 45 disposed in parallel to the movable member 30. Accordingly, when the connecting member 46 moves in the axial direction, the upper deckle 23 also moves in the first direction wd together with the deckle 21.

  By the way, when this T-die apparatus 1 is operated, a resin or additive called “meani” or “koge” is altered on the wall surface 14a defining the lip surface 11 of the T-die body 10 and the slit 14 of the T-die body 10. Contaminants are accumulated. The accumulated foreign matter protrudes from the wall surface 14 a defining the lip surface 11 or the slit 14, and leaves streaks on the molten resin 2 discharged from the lip opening 12 in the form of a film. It becomes a factor which reduces the surface quality of the produced film. Therefore, in order to remove foreign matter accumulated on these, the T-die device 1 includes a spatula member 60 that can be attached to the movable member 30 when the deckle 21 is removed from the movable member 30. Hereinafter, the spatula member 60 will be described in detail with reference to FIGS. 2 (a) and 2 (b) and FIGS. 3 (a) and 3 (b). Among these, FIG. 2 is a schematic diagram showing a spatula member 60 attached to the T-die device 1 shown in FIG. 1, (a) shows a front view, and (b) shows a side view. FIG. 3 is a schematic view showing a state in which the spatula member 60 is attached to the T-die device 1 shown in FIG. 1, (a) showing a partially enlarged longitudinal sectional view, and (b) showing a side view. .

  As shown well in FIG. 3B, the spatula member 60 is disposed outside the slit 14 and the first sweep portion 61 disposed in the slit 14 while being supported by the movable member 30. And a second sweep portion 62 that comes to face the lip surface 11.

  First, the first sweep unit 61 will be described. As shown in FIGS. 2A and 2B and FIGS. 3A and 3B, the first sweep portion 61 is a rectangular parallelepiped portion formed along the wall surface 14a that defines the slit 14. It is configured. An insertion hole 63 extending in the first direction wd is formed in the surface 61a of the first sweep portion 61 arranged outside in the first direction wd. Then, one end of the rod-shaped movable member 30 can be inserted into the insertion hole 63. Furthermore, a female screw hole 64 extending so as to communicate with the insertion hole 63 from the second direction td perpendicular to the first direction wd is formed in the first sweep portion 61. The set screw 22 can be screwed into the female screw hole 64. The spatula member 60 is fixed to the movable member 30 by the tip of the set screw 22 pressing the rod-shaped movable member 30. An escape groove 65 for accommodating the head of the set screw 22 is formed around the female screw hole 64 so that the head of the set screw 22 does not interfere with the wall surface 14 a defining the slit 14.

  As described above, the first sweep portion 61 is disposed in the slit 14 while being supported by the movable member 30. Therefore, as shown in FIG. 3B, the length of the first sweep portion 61 along the second direction td is shorter than the length of the slit 14 along the second direction td. In the state supported by the movable member 30, the first sweep unit 61 faces the wall surface 14 a that defines the slit 14 and faces it.

  Further, as shown in the example, the upper surface 61c of the first sweep portion 61 that forms the upper surface of the spatula member 60 may be separated from the upper deckle 23 while being supported by the movable member 30. Unlike illustration, you may contact.

  Next, the second sweep unit 62 will be described. As shown in FIGS. 2A and 2B, the second sweep portion 62 is configured by a flat plate portion and is connected to the lower end of the first sweep portion 61. As described above, the second sweep portion 62 faces the lip surface 11 while being supported by the movable member 30. Therefore, as shown in FIG. 3B, the length of the second sweep portion 62 along the second direction td is equal to the length of the first sweep portion 61 along the second direction td and the length of the lip opening 12. The length is longer than the length along the second direction td, and in the example shown in the drawing, the length of the lip surface 11 is longer than the length along the second direction td. In the present embodiment, the second sweep portion 62 faces the lip surface 11 in the state of being supported by the movable member 30.

  As described above, the first sweep portion 61 is configured by a rectangular parallelepiped portion formed along the wall surface 14 a that defines the slit 14, and the second sweep portion 62 is more than the first sweep portion 61. The length along the second direction td is longer. Therefore, the spatula member 60 including the first sweep portion 61 and the second sweep portion 62 has a T-shape when viewed from the first direction wd, as shown in FIG. Forming the spatula member 60 in a T shape results in an efficient shape in order to remove foreign matter adhering to the wall surface 14a that defines the lip surface 11 and the slit 14. Therefore, by making the spatula member 60 T-shaped, it is possible to effectively use the spatula member 60 while saving the material constituting the spatula member 60.

  The material of the spatula member 60 is not particularly limited, and examples thereof include metals and resins. In particular, the spatula member 60 is preferably made of a material that is softer than the wall surface 14 a that defines the lip surface 11 of the T-die body 10 and the slit 14 of the T-die body 10. According to such a form, even if the spatula member 60 contacts the wall surface 14a which defines the lip surface 11 and the slit 14, it can suppress effectively that these are damaged. Copper or brass can be used as the material of such a spatula member 60.

  Next, the operation of the present embodiment configured as described above will be described with reference to the drawings.

  First, purge resin is supplied to the supply path 15 of the T-die body 10, and the purge resin is discharged from the lip opening 12 together with the foreign matter adhering to the wall surface 14 a defining the slit 14. After supplying a predetermined amount of the purge resin, the production molten resin 2 is supplied to the supply path 15.

  From this state, the movable member 30 supporting the deckle 21 is moved outward along the first direction wd, then the set screw 22 is loosened, and the deckle 21 is removed from the movable member 30. The spatula member 60 is attached to the movable member 30 instead of the deckle 21. Specifically, one end of the movable member 30 is inserted into the insertion hole 63 formed in the spatula member 60 and extending in the first direction wd. Then, the set screw 22 is screwed into the female screw hole 64 communicating with the insertion hole 63 from the second direction td. As shown in FIG. 3B, the spatula member 60 is fixed to the movable member 30 when the tip of the set screw 22 presses the rod-shaped movable member 30.

  Next, the driving means 40 is driven to start moving the movable member 30 that supports the spatula member 60 along the first direction wd. As a result, as shown in FIG. 3B, the first sweep portion 61 enters the slit 14, faces the wall surface 14a that defines the slit 14, and faces the second sweep portion 62. Facing the lip surface 11 from the outside. Then, after the spatula member 60 enters the slit 14, the molten resin 2 is pushed out again and discharged from the lip opening 12. By discharging the molten resin 2, foreign matter adhering to the wall surface 14 a defining the slit 14 and the lip surface 11 can be softened and easily removed.

  When the movable member 30 is further moved along the first direction wd, the first sweep portion 61 advances in the slit 14 while facing the wall surface 14a defining the slit 14, and the second sweep portion 62 is moved. It moves along the lip surface 11 while facing the lip surface 11 from the outside of the slit 14. As described above, the foreign matter deposited on the wall surface 14 a that defines the lip surface 11 or the slit 14 protrudes from these surfaces 11 and 14. Accordingly, the first sweep portion 61 can move in the slit 14 while facing the wall surface 14a defining the slit 14, thereby removing foreign matter adhering to the wall surface 14a defining the slit 14. . At the same time, the second sweep portion 62 moves along the lip surface 11 while facing the lip surface 11 from the outside of the slit 14, thereby removing foreign matters attached to the lip surface 11.

  As described above, according to the present embodiment, the T-die body 10 is not disassembled, the deckle 21 is removed from the movable member 30, and the spatula member 60 is attached to the movable member 30, and then the movable member 30 is moved to the first position. By moving along the one direction wd, the first sweep portion 61 can remove the foreign matter adhering to the wall surface 14a defining the slit 14 of the T-die body 10, and the second sweep portion 62 The foreign matter adhering to the lip surface 11 of the T-die body 10 can be removed. For this reason, the foreign material adhering to both the lip surface 11 of the T-die main body 10 and the wall surface 14a that defines the slit 14 of the T-die main body 10 can be sufficiently removed by a simple operation.

  Moreover, according to this Embodiment, the drive means 40 which moves the movable member 30 along the 1st direction wd is further provided. According to such a form, the movable member 30 is automatically moved along the first direction wd by the driving means 40, thereby defining the lip surface 11 of the T die body 10 and the slit 14 of the T die body 10. Foreign matter adhering to the wall surface 14a can be removed. For this reason, the foreign material adhering to the wall surface 14a which defines the lip surface 11 of the T-die main body 10 and the slit 14 of the T-die main body 10 can be removed by a further simple operation.

  Further, according to the present embodiment, the spatula member 60 is made of copper or brass. According to such a configuration, the spatula member 60 is made of a material softer than the wall surface 14 a that defines the lip surface 11 of the T-die body 10 and the slit 14 of the T-die body 10. For this reason, even if the spatula member 60 contacts the wall surface 14a which defines the lip surface 11 and the slit 14, it can suppress effectively that these are damaged.

  In the above-described embodiment, the example in which the first sweep unit 61 faces the wall surface 14a that defines the slit 14 while being supported by the movable member 30 has been described. It is not limited to a specific example. When the movable member 30 supporting the spatula member 60 is moved along the first direction wd, if the first sweep portion 61 can advance in the slit 14, the first sweep portion 61 is moved to the movable member 30. In the supported state, it may be in contact with the wall surface 14 a that defines the slit 14.

  In the above-described embodiment, the example in which the second sweep unit 62 faces the lip surface 11 in a state where the second sweep unit 62 is supported by the movable member 30 is shown, but the present invention is not limited to such an example. . When the movable member 30 supporting the spatula member 60 is moved along the first direction wd, the second sweep portion 62 moves along the lip surface 11 while facing the lip surface 11 from the outside of the slit 14. If it is possible, the second sweep portion 62 may be in contact with the lip surface 11 while being supported by the movable member 30.

DESCRIPTION OF SYMBOLS 1 T die apparatus 2 Molten resin 10 T die main body 11 Lip surface 12 Lip opening 13 Manifold 14 Slit 14a Wall surface 15 Supply path 21 Deckel 23 Upper deckle 30 Movable member 40 Drive means 42 Ball screw 44 Screw hole 46 Connecting member 60 Spatula member 61 1st 1 sweep part 62 2nd sweep part 63 Insertion hole 64 Female screw hole 502 Metal spatula 503 Holding body 504 Guide 505 Wire 510 T die body 511 Lip surface 512 Lip opening 514 Slot 514a Wall surface

Claims (5)

A T-die main body having a lip surface in which a lip opening extending in the width direction is formed, and a manifold to which molten resin is supplied and a slit extending from the manifold to the lip surface to form the lip opening are formed. The T-die body,
Dickel for guiding the molten resin passing through at least the slit from the width direction,
A movable member that detachably supports the deckle and is movable along the width direction;
A spatula member attachable to the movable member when the deckle is removed from the movable member;
With
The spatula member, in a state supported by the movable member, a first sweep portion disposed in the slit, a second sweep portion disposed outside the slit and facing the lip surface, Have
In a state where the spatula member is supported by the movable member, the first sweep portion is attached to the wall surface defining the slit of the T-die body by moving the movable member along the width direction. The T-die device is configured to remove the foreign matter and the second sweep portion can remove the foreign matter adhering to the lip surface of the T-die body.   The T-die device according to claim 1, wherein the spatula member has a T-shape when viewed from the width direction.   The T-die device according to claim 1, further comprising a driving unit that moves the movable member along the width direction.   The T-die device according to any one of claims 1 to 3, wherein the spatula member is made of copper or brass. A T-die body having a lip surface in which a lip opening extending in the width direction is formed, wherein a manifold to which molten resin is supplied and a slit extending from the manifold to the lip surface to form the lip opening are formed T-die body,
Dickel for guiding the molten resin passing through at least the slit from the width direction,
A movable member that detachably supports the deckle and is movable along the width direction;
A spatula member used with a T-die device comprising:
The spatula member can be attached to the movable member when the deckle is removed from the movable member,
The spatula member, in a state supported by the movable member, a first sweep portion disposed in the slit, a second sweep portion disposed outside the slit and facing the lip surface, Have
In a state where the spatula member is supported by the movable member, the first sweep portion is attached to the wall surface defining the slit of the T-die body by moving the movable member along the width direction. A spatula member that can remove foreign matter that has been removed, and that the second sweep portion can remove foreign matter that has adhered to the lip surface of the T-die body.

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