KR20220086652A - Gas seal structure and extraction drying device - Google Patents

Abstract

In order to easily ensure sealing property, the gas sealing structure 30 partitions the drying chamber 11, and the drying chamber 11 side in the partition 15 which has the opening part 16 through which the sheet-like member S passes. A seal roll 40 disposed on the surface side opposite to the surface of ), the conveyance part labyrinth seal (60) which is arranged in the conveyance direction of the sheet-like member S and has a plurality of space portions 67 in which the seal roll 40 side is opened. And the exhaust duct 22 which makes the inside of the drying chamber 11 a negative pressure with respect to the side on which the seal roll 40 is arrange|positioned is provided.

Description

Gas seal structure and extraction drying device

The present invention relates to a gas seal structure and an extraction drying apparatus.

A manufacturing apparatus for molding a sheet-like member of a resin thin film generally has a plurality of processing steps, and performs molding of the sheet-like member through each processing step. It may be necessary to convey a sheet-like member while suppressing the outflow of gas from a process chamber when conveying a material. As one method for conveying the sheet-like member while ensuring the sealing property and suppressing the outflow of gas, a tank filled with water is disposed at the exit of the processing chamber, and the exit of the processing chamber is submerged in water, so that A method of suppressing the outflow of gas is conceivable. However, in this case, since the sheet-like member conveyed from the processing chamber is conveyed out of the processing chamber after passing through the water, a drying step is required after being transported from the processing chamber, and the number of drying equipment is increased. , there exists a possibility that cost may increase or an apparatus may become easy to enlarge. For this reason, the outlet for carrying out the thin-film sheet-like member from the processing chamber preferably has a configuration capable of suppressing the outflow of gas without using water. There is a thing aiming at ensuring the sealing property at the time of conveying a sheet-like member without using.

For example, in the roll sealing device described in Patent Document 1, a casing for accommodating a pair of rolls partitioning the high-pressure side and the low-pressure side, and a plate that transports the rolls are arranged above and below, and the leading end is on the circumferential surface of the roll By having adapters disposed on both side surfaces of the seal bar to close the space partitioned by the seal bar and the upper and lower seal bars that are close and hermetically supported by the casing, gas movement between the high-pressure side and the low-pressure side is minimized as much as possible. . Further, in the gas seal structure described in Patent Document 2, a partition wall is provided between the first processing chamber and the second processing chamber, the partition wall has an opening through which a sheet-like material passes, and a pair of seal rolls for gas-sealing the opening This is provided and the pair of seal rolls are arranged so that the sheet-like material travels in contact with both rolls at a predetermined contact angle, respectively, thereby suppressing mixing of the impurity gas into the surface treatment chamber.

Japanese Patent Laid-Open No. 62-13572 Japanese Patent Laid-Open No. 2003-27234

Here, when ensuring sealing property by passing a sheet-like member between a pair of seal rolls, the clearance gap between seal rolls becomes important. That is, when the clearance gap between a pair of sealing rolls is too large, there exists a possibility that it may become difficult to ensure sealing property. On the other hand, if the gap between the pair of seal rolls is too small, when passing the sheet-like member between the seal rolls in the preparation stage before actual operation, it becomes difficult to pass the sheet-like member, and the usability of the device is reduced. There is a risk of getting worse. For this reason, in order to ensure the sealing property without deteriorating the usability of the apparatus, it is necessary to arrange the space|interval of a pair of seal roll with high precision, and from a viewpoint of the ease in ensuring sealing property, There was room.

This invention has been made in view of the above, and an object of this invention is to provide the gas-seal structure and extraction drying apparatus which can ensure sealing property easily.

In order to solve the above problems and achieve the object, a gas seal structure according to the present invention divides a processing chamber, and in a partition wall having an opening through which a sheet-like member passes, on the surface side opposite to the processing chamber side surface a seal roll disposed at a position opposite to the outer circumferential surface of the seal roll, and disposed at a position where the sheet-like member conveyed from the opening can pass between the seal roll and the seal roll, and conveying the sheet-like member A transport section labyrinth seal having a plurality of space portions arranged in the direction of the seal roll side and opened on the side of the seal roll;

In addition, in order to solve the above problems and achieve the object, the extraction and drying apparatus according to the present invention extracts the liquid plasticizer using a solvent from a sheet-like member obtained by molding a resin material and a liquid plasticizer after melt-kneading. an extraction device; a drying device for removing the solvent adhering to the sheet-like member by drying the sheet-like member; and a partition partitioning a drying chamber of the drying device and having an opening through which the sheet-like member passes. a seal roll disposed on the surface side opposite to the drying chamber side surface, and a position opposite to the outer peripheral surface of the seal roll, and a position where the sheet-like member conveyed from the opening part can pass between the seal roll a conveyance part labyrinth seal disposed in a conveyance part arranged in the conveyance direction of the sheet-like member and having a plurality of spaces in which the seal roll side is opened, and an exhaust for setting the inside of the drying chamber to a negative pressure with respect to the side on which the seal roll is disposed Provide ducts.

The gas-seal structure and extraction drying apparatus which concern on this invention exhibit the effect that sealing property can be ensured easily.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the apparatus structure of the extraction and drying apparatus which concerns on Embodiment 1. FIG.
FIG. 2 is an arrow view AA of FIG. 1 .
3 is a perspective view of the gas seal structure shown in FIG. 2 .
FIG. 4 is a cross-sectional view taken along line BB of FIG. 2 .
Fig. 5 is a perspective view of an essential part in the cross section BB of Fig. 2 .
FIG. 6 is a cross-sectional view taken along line GG of FIG. 2 .
FIG. 7 is a detailed view of the transport part labyrinth seal shown in FIG. 5 .
FIG. 8 is a cross-sectional view taken along CC of FIG. 2 .
Fig. 9 is a perspective view of an essential part in a cross section CC of Fig. 2;
Fig. 10 is a perspective view of the end cover body shown in Fig. 9;
Fig. 11 is a perspective view showing a state in which the partition body shown in Fig. 4 is viewed from the side where a side wall portion of the carrying section is located.
Fig. 12 is a perspective view showing a state in which the partition body shown in Fig. 4 is viewed from the side where the partition body opening is located.
Fig. 13 is an explanatory view showing a state in which the transport section upper cover body of the gas seal structure shown in Fig. 2 is moved upward.
14 is a DD cross-sectional view of FIG. 13 .
It is a front view of the gas-seal structure which concerns on Embodiment 2, It is the arrow AA of FIG.
16 is a cross-sectional view EE of FIG. 15 .
Fig. 17 is a perspective view of an essential part in the section EE of Fig. 15 .
18 is a FF cross-sectional view of FIG. 15 .
Fig. 19 is a perspective view of an essential part in the FF section of Fig. 15 .
Fig. 20 is a perspective view of the end cover body shown in Fig. 19;
Fig. 21 is a perspective view of the end cover body shown in Fig. 20 as seen from the outer peripheral surface side;
Fig. 22 is a main part perspective view showing a state in which the end cover body shown in Fig. 20 is cut in the horizontal direction;
Fig. 23 is a principal part perspective view showing a state in which the end cover body shown in Fig. 20 is cut along a groove portion;

EMBODIMENT OF THE INVENTION Below, embodiment of the gas-seal structure which concerns on this indication, and an extraction drying apparatus is described in detail based on drawing. In addition, this invention is not limited by this embodiment. In addition, components in the following embodiment include those that can be substituted by those skilled in the art, and those that can be easily conceived, or those that are substantially the same.

[Embodiment 1]

1 : is a schematic diagram which shows the apparatus structure of the extraction and drying apparatus 1 which concerns on Embodiment 1. FIG. In addition, in the following description, the up-down direction in the normal use state of the extraction and drying apparatus 1 is demonstrated as the up-down direction Z in the extraction and drying apparatus 1, and the normal use of the extraction and drying apparatus 1 is demonstrated. Let the upper side in the use state be the upper side in the extraction and drying apparatus 1, and let the lower side in the normal use state of the extraction and drying apparatus 1 be the lower side in the extraction and drying apparatus 1, Explain. In addition, the horizontal direction in the normal use state of the extraction and drying apparatus 1 is demonstrated also as a horizontal direction in the extraction and drying apparatus 1 . In addition, let the extension direction of the seal roll 40 of the gas-seal structure 30 mentioned later among the horizontal directions be the width direction Y in the extraction drying apparatus 1, and the vertical direction Z of the extraction drying apparatus 1, and The direction orthogonal to both sides of the width direction Y is demonstrated as the longitudinal direction X in the extraction and drying apparatus 1 . In addition, when conveying the sheet-like member S in the extraction and drying apparatus 1, since the conveyance direction of the sheet-like member S becomes the width direction Y in a horizontal direction, in the following description, the conveyance direction of the sheet-like member S and width direction Y are sometimes treated as synonyms.

<Extraction drying device (1)>

The extraction and drying apparatus 1 which concerns on this Embodiment 1 is mainly used for manufacture of the separator film used for a lithium ion battery, and has the extraction apparatus 5 and the drying apparatus 10. FIG. In the process on the upstream side of the extraction and drying apparatus 1 in the production of the separator film, the resin material and liquid plasticizer used as raw materials for the separator film are melt-kneaded and then molded into a sheet to obtain a sheet-like member S, but extraction The drying apparatus 1 is an apparatus which removes a liquid plasticizer from the obtained sheet-like member S.

In detail, as a resin material used as a raw material of a separator film, polyolefin resins, such as polyethylene and polypropylene, are used, for example. Moreover, as a liquid plasticizer, oil, liquid paraffin, etc. are used, for example. In the process on the upstream side of the extraction and drying apparatus 1 in the production of the separator film, these resin materials and the liquid plasticizer are melt-kneaded to form a sheet, and further, by stretching the sheet, a large number of fine particles are added to the polyolefin-based resin. It is set as the thin film-form sheet-like member S in which the hole was perforated and the liquid plasticizer entered the micropore. The extraction and drying apparatus 1 extracts and removes the liquid plasticizer impregnated in the sheet-like member S from the sheet-like member S thus formed, so that the liquid plasticizer escapes from the many micropores opened in the polyolefin-based resin. , is constituted as an apparatus for forming a sheet-like member S in which a large number of micropores are perforated.

The extraction apparatus 5 which the extraction and drying apparatus 1 has uses the solvent 7 to extract the liquid plasticizer with respect to the sheet-like member S conveyed to the extraction and drying apparatus 1 . For this reason, the extraction apparatus 5 has the solvent tank 6 which is a tank 7 of the solvent, and the solvent 7 is stored in the solvent tank 6 . As the solvent 7, methylene chloride is used, for example. In the extraction apparatus 5, the liquid plasticizer is extracted by immersing the sheet-like member S in the solvent 7 in the solvent manufacturing tank 6, conveying the sheet-like member S, and the liquid plasticizer is removed from the sheet-like member S.

The drying apparatus 10 which the extraction and drying apparatus 1 has is arrange|positioned downstream of the extraction apparatus 5 in the conveyance direction of the sheet-like member S, and is attached to the sheet-like member S by the extraction apparatus 5. The solvent (7) is dried. That is, the drying apparatus 10 removes the solvent 7 adhering to the sheet-like member S in the extraction apparatus 5 from the sheet-like member S by drying the sheet-like member S.

The drying apparatus 10 has a drying chamber 11 which is a processing chamber which dries the sheet-like member S, and the drying chamber 11 communicates with the extraction apparatus 5 via the solvent manufacturing tank 6 . Moreover, the drying apparatus 10 includes the air knife 25 which dries the sheet-like member S, the roll 26 which conveys the sheet-like member S, and the air supply duct which supplies air with respect to the air knife 25 ( 21 , and an exhaust duct 22 for exhausting gas in the drying chamber 11 . Among these, the roll 26 is formed in the cylindrical shape, and the axial direction of the circumference is arrange|positioned in the drying chamber 11 in the direction along the width direction Y of the extraction and drying apparatus 1 . In the drying chamber 11 , a plurality of rolls 26 are arranged, and the plurality of rolls 26 are in a direction in which the axial directions of the circumference are parallel to each other in the longitudinal direction X of the extraction and drying apparatus 1 . The position of and the position in the vertical direction Z are arranged at different positions, respectively. By rotating the roll 26 while winding the sheet-like member S in the drying chamber 11, it is possible to convey the sheet-like member S.

The air knife 25 is arrange|positioned in the drying chamber 11 in the position which can inject air with respect to the sheet-like member S wound up on the roll 26. The air knife 25 is arrange|positioned, for example in the vicinity of the one roll 26 among the some roll 26, and is air-wound with respect to the part wound up by the said roll 26 in the sheet-like member S. It is placed in a position where it can be sprayed. In this way, the air knife 25 for spraying air to the sheet-like member S is connected to the air supply duct 21, and air is supplied from the air supply duct 21, whereby air can be sprayed onto the sheet-like member S. There is, the sheet-like member S is dried by blowing air to the sheet-like member S. The air supply duct 21 is arrange|positioned on the outer side of the drying apparatus 10, and it is possible to supply the air supplied from blowers (not shown), such as a blower, to the air knife 25.

The exhaust duct 22 is disposed outside the drying apparatus 10 , and it is possible to discharge the gas in the drying chamber 11 to the outside of the drying chamber 11 . In addition, the exhaust duct 22 is connected to a blower (not shown) such as a blower that takes in the gas in the drying chamber 11 and a gas recovery device (not shown) that recovers a predetermined component in the gas. That is, since the drying apparatus 10 dries the sheet-like member S to which the solvent 7 is adhered, when the extraction and drying apparatus 1 is operating, the gas in which the solvent 7 is vaporized in the drying chamber 11 is released. Although it becomes full, the vaporized solvent 7 can be collect|recovered by sucking in the gas exhausted from the exhaust duct 22 by a blower, and sending it to a gas recovery apparatus.

Moreover, in the downstream in the conveyance direction of the sheet-like member S conveyed by the drying apparatus 10 in the drying apparatus 10, the opening part 16 through which the sheet-like member S passes is formed. That is, in the partition wall 15 which partitions the drying chamber 11 of the drying apparatus 10, the sheet-like member S passes through the partition 15 located downstream in the conveyance direction of the sheet-like member S. An opening 16 is formed.

Moreover, the sealing roll 40 is arrange|positioned on the surface side on the opposite side to the surface on the side of the drying chamber 11 in the partition 15 which has the opening part 16. As shown in FIG. The seal roll 40 constitutes the gas seal structure 30 according to the first embodiment. That is, the gas seal structure 30 is arrange|positioned on the surface side opposite to the surface on the side of the drying chamber 11 in the partition 15 which has the opening part 16, and the sheet-like member S is inside the drying chamber 11. It is comprised so that it may be conveyed to the outside of the drying chamber 11 through the gas seal structure 30. The gas seal structure 30 which concerns on this Embodiment 1 is comprised including the exhaust duct 22 also. By discharging the gas in the drying chamber 11 to the outside of the drying chamber 11 , the exhaust duct 22 can make the inside of the drying chamber 11 a negative pressure with respect to the side on which the seal roll 40 is disposed.

<Gas seal structure (30)>

FIG. 2 is an arrow view A-A of FIG. 1 . 3 is a perspective view of the gas seal structure 30 shown in FIG. 2 . The seal roll 40 which the gas seal structure 30 has is formed in a substantially cylindrical shape, is arrange|positioned in the direction extending in the width direction Y of the extraction-drying apparatus 1 with a central axis, and the flame|frame 31 It is rotatably supported by the bearing part 35 arrange|positioned to it. The bearing part 35 is arrange|positioned on the support plate 33 which the frame 31 has. Two support plates 33 are respectively arrange|positioned in the vicinity of both ends in the longitudinal direction of the seal roll 40, and are arrange|positioned in the direction used as the width direction Y of the thickness direction of a board.

The two support plates 33 are each formed in the plate-shaped shape of a substantially rectangular shape, and the stay 32 is arrange|positioned between the two support plates 33. As shown in FIG. Four of the stays 32 are formed, for example of a square pipe, and are arrange|positioned between four corner vicinity of the support plate 33 formed in the shape of a rectangular shape. That is, the stay 32 spans between the vicinity of four corners of the two support plates 33 spaced apart in the width direction Y, and the four stays 32 are arranged to extend in the width direction Y, respectively, and each The both ends of the stay 32 are respectively connected to the support plate 33 of 2 sheets. Thereby, the frame 31 constitutes the skeleton of the gas seal structure 30 .

The bearing part 35 which supports the seal roll 40 rotatably is arrange|positioned at each of the support plate 33 of 2 sheets, The seal roll 40 is a shaft located at the both ends in the longitudinal direction. The end portions 45 are respectively rotatably supported by the bearing portions 35 . Thereby, the sealing roll 40 is rotatably arrange|positioned between the support plate 33 comrades of 2 sheets in the direction in which a rotating shaft extends in the width direction Y of the extraction and drying apparatus 1 . The sheet-like member S conveyed through the gas seal structure 30 is conveyed through between the support plates 33 comrades of 2 sheets on which the seal roll 40 is arrange|positioned.

Moreover, the conveyance part cover body 50 and the edge part cover body 90 are arrange|positioned between the support plates 33 comrades of 2 sheets by which the seal roll 40 is arrange|positioned. Among these, the conveyance part cover body 50 is arrange|positioned at the position through which the sheet-like member S passes in the width direction Y in the case where the sheet-like member S is conveyed through the gas-seal structure 30. As shown in FIG. The conveyance part cover body 50 is arrange|positioned at the upper side and the lower side of the seal roll 40 in the up-down direction Z, The conveyance part upper cover body 51 arrange|positioned above the seal roll 40, and a seal|sticker; It has the conveyance part lower cover body 52 arrange|positioned below the roll 40. As shown in FIG. In addition, the end cover body 90 is arrange|positioned on both sides of the position where the conveyance part cover body 50 in the extending direction of the seal roll 40 is arrange|positioned.

<Stroke structure (70)>

Among the transport section upper cover body 51 and the transport section lower cover body 52 included in the transport section cover body 50 , the transport section upper cover body 51 is movable in the vertical direction Z. Specifically, above the frame 31 in the vertical direction Z, a stroke structure 70 for moving the conveyance unit upper cover body 51 in the vertical direction Z is disposed, and the conveyance unit upper cover body ( 51 , by being connected to the stroke structure 70 , is movable in the vertical direction Z by the stroke structure 70 .

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2 . Fig. 5 is a perspective view of an essential part in the cross section B-B of Fig. 2; As for the stroke structure 70, two sets are arrange|positioned at the upper side of the frame 31 at intervals in the width direction Y. As shown in FIG. Each stroke structure 70 has an air cylinder 71 , and the air cylinder 71 is supported by a post 80 and a support member 81 . Four posts 80 are provided per one stroke structure 70, and the four posts 80 are spaced apart in the width direction Y and the longitudinal direction X, and the upper stay 32 which the frame 31 has. ), it is installed upright in the vertical direction Z. The support member 81 is arranged extending in the longitudinal direction X, and connected to the upper ends of the four posts 80 .

The air cylinder 71 is provided above the support member 81 in a direction in which the stroke direction of the rod 73 is the vertical direction Z. That is, the air cylinder 71 is disposed in a direction in which the rod 73 is located below the body portion 72 of the air cylinder 71 in the vertical direction Z, and the body portion 72 is a supporting member. It is provided above the 81, and the rod 73 penetrates the support member 81 in the up-down direction Z.

The front end of the rod 73 is connected to the upper end of the bracket 85 , and the lower end of the bracket 85 is connected to the conveyance part upper cover body 51 . Thereby, the conveyance part upper cover body 51 expands and contracts the rod 73 of the air cylinder 71 in the vertical direction Z with respect to the main body part 72, and the conveyance part upper cover body 51 and the rod 73 ) and can move in the up-down direction Z.

In this way, the bracket 85 connected to the rod 73 and the upper cover body 51 of the carrying unit has arms 86 extending to both sides in the longitudinal direction X. As shown in FIG. The arm 86 is inserted between the posts 80 comrades adjacent to each other at intervals in the width direction Y.

In detail, the guide blocks 82 which guide the arm 86 are provided in the surface on the side of the support|pillar 80 comrades adjacent to each other in the width direction Y on the side where the support|pillar 80 on the other side is located, respectively. and guide blocks 82 of adjacent posts 80 are disposed to face each other. The spacing between the opposing guide blocks 82 is set to be a little wider than the thickness of the arm 86 of the bracket 85 in the width direction Y.

FIG. 6 is a cross-sectional view taken along line G-G of FIG. 2 . The arm 86 of the bracket 85 has narrow width portions 86a formed at both ends in the longitudinal direction X, the thickness of which is thinner in the width direction Y than the portions in the vicinity of the center in the longitudinal direction X. The spacing between the opposing guide blocks 82 is set to be slightly wider than the thickness of the narrow portion 86a formed in the arm 86 of the bracket 85 in this way. As for the arm 86 of the bracket 85, the narrow part 86a is provided between the guide blocks 82 which are provided in the support|pillar 80 and oppose. For this reason, the bracket 85 moves while being guided by the guide block 82 when the rod 73 of the air cylinder 71 expands and contracts and the bracket 85 moves in the up-down direction Z. Shaking is regulated.

Further, the arm 86 of the bracket 85 is provided with a narrow portion 86a, so that a step portion ( 86b) is formed. In a state where the narrow portion 86a of the arm 86 is inserted between the opposing guide blocks 82 , the stepped portion 86b creates a slight gap in the longitudinal direction X between the guide block 82 and the guide block 82 . placed in a position with For this reason, when the rod 73 of the air cylinder 71 expands and contracts and the bracket 85 moves in the vertical direction Z, the step portion 86b moves while being guided by the guide block 82, so that the bracket 85 is , the shake in the longitudinal direction X is also regulated.

Further, on the arm 86 of the bracket 85 , a stopper 87 is provided on the lower surface in the vertical direction Z. As shown in FIG. The stopper 87 is disposed at a position opposite to the upper surface of the stay 32 of the frame 31 on which the post 80 is erected, and when the rod 73 of the air cylinder 71 is extended, It is arrange|positioned so that it may contact|abut against the stay 32. In addition, the stopper 87 can adjust the amount of downward protrusion from the arm 86 of the bracket 85 , whereby the stopper 87 is configured such that the stopper 87 is attached to the stay 32 . It is possible to adjust the position in the vertical direction Z of the conveyance part upper cover body 51 at the time of contact|abutting. That is, the stopper 87 can adjust the relative position in the vertical direction Z of the transfer section upper cover body 51 with respect to the seal roll 40 when the stopper 87 abuts against the stay 32 . have.

The conveyance part upper cover body 51 is comprised in this way and is movable in the up-down direction Z by the two sets of stroke structures 70 spaced apart in the width direction Y. As shown in FIG. That is, the conveyance unit upper cover body 51 included in the conveyance unit cover body 50 changes the distance from the outer peripheral surface 41 of the seal roll 40 by moving in the vertical direction Z by the stroke structure 70 . can do it

On the other hand, among the conveyance part cover bodies 50, the conveyance part lower cover body 52 arrange|positioned under the seal roll 40 is movable in the up-down direction Z by the jack structure 36. The jack structure 36 can adjust the position of the conveyance part lower cover body 52 in the up-down direction Z by using a bolt or a nut, and the conveyance part lower cover body 52 is this jack structure 36 ), the relative position of the vertical direction Z with respect to the seal roll 40 can be adjusted.

<Transport part labyrinth seal (60)>

In addition, the conveyance part labyrinth seal 60 is arrange|positioned at the position opposing the outer peripheral surface 41 of the seal roll 40 in the conveyance part cover body 50 . Specifically, the transport section upper cover body 51 included in the transport section cover body 50 has a casing 53 whose shape when viewed in the width direction Y is an inverted U-shape with an open lower side, The casing 53 of the conveyance part upper cover body 51 has a shape in which the lower side is opened, and is extended in the width direction Y. As shown in FIG. The transport section upper labyrinth seal 61 , which is the transport section labyrinth seal 60 disposed on the transport section upper cover body 51 , is a casing 53 of the transport section upper cover body 51 having an open lower side in this way. It is arrange|positioned in the part in which it is open. That is, in the casing 53 of the conveyance part upper cover body 51 , the portion opposing the outer peripheral surface 41 of the seal roll 40 is opened, and the conveyance part upper part is arrange|positioned in the conveyance part upper cover body 51 . The labyrinth seal 61 is disposed in a portion of the casing 53 on the side opposite to the outer peripheral surface 41 of the seal roll 40 .

Moreover, the conveyance part lower cover body 52 which the conveyance part cover body 50 has has a casing 53 which becomes an inverted U-shape with an upper side opening when viewed in the width direction Y, The conveyance part The casing 53 of the lower cover body 52 has a shape in which the upper side is opened, and is extended in the width direction Y. As shown in FIG. The transport section lower labyrinth seal 62 , which is the transport section labyrinth seal 60 , disposed on the transport section lower cover body 52 is a casing 53 of the transport section lower cover body 52 having an upper side opened in this way. It is arrange|positioned in the part in which it is open. That is, in the casing 53 of the conveyance unit lower cover body 52 , the portion opposite to the outer peripheral surface 41 of the seal roll 40 is opened, and the conveyance unit lower part disposed on the conveyance unit lower cover body 52 . The labyrinth seal 62 is disposed in a portion of the casing 53 on the side opposite to the outer peripheral surface 41 of the seal roll 40 .

The transport part labyrinth seal 60 is held by the transport part cover body 50 by being disposed in the opening in the vertical direction Z in the casing 53 of the transport part cover body 50 in this way, That is, it is hold|maintained at the position on the side opposite to the outer peripheral surface 41 of the seal roll 40 in the casing 53.

Here, when the sheet-like member S is conveyed through the gas seal structure 30, the sheet-like member S is wound around the outer peripheral surface 41 of the seal roll 40 and conveyed, but in that case, the sheet-like member S is It is wound around the upper end vicinity of the up-down direction Z in the outer peripheral surface 41 of the seal roll 40. That is, when the sheet-like member S is conveyed through the gas seal structure 30 , the sheet-like member S is conveyed through between the outer peripheral surface 41 of the seal roll 40 and the conveyance part upper cover body 51 . . For this reason, among the transport part labyrinth seals 60 held by the transport part cover body 50 , the transport part upper labyrinth seal 61 held by the transport part upper cover body 51 is dried. It is arrange|positioned at the position where the sheet-like member S conveyed from the opening part 16 (refer FIG. 1) formed in the partition 15 of the apparatus 10 can pass between the sealing rolls 40. As shown in FIG. That is, the upper labyrinth seal 61 of the conveyance part is disposed on the surface side of the sheet-like member S wound around the outer peripheral surface 41 of the seal roll 40 opposite to the side on which the seal roll 40 is located. have.

FIG. 7 is a detailed view of the transport part labyrinth seal 60 shown in FIG. 5 . In addition, FIG. 7 shows the conveyance part upper labyrinth seal 61 held by the conveyance part upper cover body 51 among the conveyance part labyrinth seals 60 held by the conveyance part cover body 50. In addition, FIG. However, the transport section lower labyrinth seal 62 held by the transport section lower cover body 52 has the same configuration.

The transport unit labyrinth seal 60 includes a plurality of partition plates 63 and a plurality of spacers 64 , and overlaps them with holding bolts 65 and attaches them to the casing 53 , thereby providing a transport unit cover body. It is held at (50). In detail, the partition plate 63 is made of a resin plate-like member having a relatively thin thickness, and has a length approximately equal to the length in the width direction Y of the casing 53 . In the first embodiment, one transport unit labyrinth seal 60 has six partition plates 63 formed in this way, the thickness direction of the plate is the longitudinal direction X, and the longitudinal direction of the plate is the width It is arranged in the direction used as the direction Y.

The spacer 64 has a thickness greater than that of the partition plate 63 , and has a length about the same as the length of the partition plate 63 , and similarly to the partition plate 63 , the thickness direction of the plate is the length. It is placed in the direction X and the longitudinal direction of the plate becomes the width direction Y. In addition, the width of the spacer 64 in the vertical direction Z is narrower than the width of the partition plate 63 in the same direction. The spacer 64 formed in this way is arranged between the partition plates 63 adjacent to each other in the longitudinal direction X, and the spacer 64 includes all adjacent partition plates 63 in the plurality of partition plates 63 . It is arrange|positioned between the partition plates 63 comrades. In other words, the plurality of partition plates 63 and the plurality of spacers 64 are alternately overlapped and disposed. The direction in which the plurality of partition plates 63 and the plurality of spacers 64 overlap is the conveyance direction of the sheet-like member S when the sheet-like member S is conveyed through the gas seal structure 30 .

The conveyance part labyrinth seal 60 is the outer peripheral surface of the seal roll 40 in the casing 53 of the conveyance part cover body 50 in the state where the partition plate 63 and the spacer 64 overlap in this way. It is arrange|positioned in the part which opposes (41) and is open. That is, the partition plate 63 and the spacer 64 are arranged inside from the opening of the casing 53 with respect to the casing 53 of the carrying unit cover body 50 in a state in which a plurality of each are alternately overlapped. have.

Further, holes (not shown) through which the holding bolt 65 passes are formed in the partition plate 63 and the spacer 64, respectively, and each hole enters the inside of the casing 53 and the partition plate ( In the state where 63 and the spacer 64 are overlapped, the holding bolt 65 is passed. Among the inner portions on both sides in the longitudinal direction X of the casing 53 , in the inner portion located on the opposite side of the side through which the retaining bolt 65 passes from the outer side with respect to the casing 53 , retaining bolts 65 . and a mounting member 66 provided with a screw hole (not shown) for screwing with it is disposed. The holding bolts 65 are attached to the casing 53 by being fastened to the screw holes of the mounting members 66 in a state where they are passed through the partition plates 63 and the spacers 64 overlapping alternately.

In that case, the partition plate 63 is provided in the state which protrudes toward the side where the seal roll 40 is located rather than the spacer 64 and the casing 53. As shown in FIG. For example, in the transport section upper labyrinth seal 61 , which is the transport section labyrinth seal 60 held by the transport section upper cover body 51 , the lower side of the partition plate 63 in the vertical direction Z The end is located below the lower end of the spacer 64 or the casing 53 , and is located in the vicinity of the outer peripheral surface 41 of the seal roll 40 . For this reason, in the part between adjacent partition plates 63 comrades, the space part 67 partitioned by the adjacent partition plates 63 and the spacer 64 located between them is formed. Between the partition plates 63 adjacent to each other, the space part 67 is formed between each partition plate 63 comrades in this way. Since a plurality of space portions 67 are arranged side by side in the direction in which the partition plate 63 and the spacer 64 overlap, the space portions 67 are arranged side by side in the conveyance direction of the sheet-like member S.

Moreover, as for these some space part 67, the side in which the seal roll 40 is located is opened. For example, in the conveyance part upper labyrinth seal 61, the space part 67 located between the partition plates 63 comrades is opened at the lower side in the up-down direction Z, but, although the conveyance part upper labyrinth seal| Since the seal roll 40 is arrange|positioned under the seal 61, the seal roll 40 side of each space part 67 is opened.

In addition, the partition plate 63 and the spacer 64 are installed in the casing 53 by passing the retaining bolt 65 through the hole through which the retaining bolt 65 passes, but formed in the partition plate 63 The hole for the holding bolt 65 is a long hole in the vertical direction Z on the long side. For this reason, when the partition plate 63 is fastened with the holding bolt 65, by moving the position in the up-down direction Z along the elongate hole, when it is installed in the casing 53, it is in the up-down direction Z at the time of it. position can be adjusted. That is, the partition plate 63 can be provided in the casing 53 by adjusting the amount of protrusion when it protrudes from the casing 53 to the side where the seal roll 40 is located. Thereby, the partition plate 63 can adjust the distance from the outer peripheral surface 41 of the seal roll 40, and the gap between the edge part of the partition plate 63 and the outer peripheral surface 41 of the seal roll 40 is reduced. can be adjusted At the time of use of the gas seal structure 30, the partition plate 63 adjusts the clearance gap with the outer peripheral surface 41 of the seal roll 40, for example to about 1 mm, and is used.

<End cover body 90>

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 2 . Fig. 9 is a perspective view of a principal part taken along a line C-C in Fig. 2; As for the edge part cover body 90 arrange|positioned on both sides of the conveyance part cover body 50 in the extending direction of the seal roll 40, in the extending direction of the seal roll 40, the conveyance part cover body 50 is a position The end on the opposite side to the end on the side to be done is provided on the support plate 33 included in the frame 31 . Thereby, the conveyance part cover body 50 is integrated with the frame 31 and is arrange|positioned.

The edge part cover body 90 provided in the frame 31 covers the predetermined range in the circumferential direction of the seal roll 40, and is arrange|positioned. In detail, the end cover body 90 is the drying chamber 11 of the drying apparatus 10 in the longitudinal direction X from the position of the upper end in the up-down direction Z in the outer peripheral surface 41 of the seal roll 40. The outer peripheral surface 41 of the seal roll 40 is covered and arrange|positioned over about half circumference to the position of the lower end of the up-down direction Z through this located side. For this reason, the edge part cover body 90 covers the range of about 180 degrees in the circumferential direction of the seal roll 40 in the outer peripheral surface 41 of the seal roll 40, and is arrange|positioned.

The inner peripheral surface 91 , which is a surface on the side opposite to the outer peripheral surface 41 of the seal roll 40 of the end cover body 90 , is a surface formed along the outer peripheral surface 41 of the seal roll 40 . For this reason, the inner peripheral surface 91 of the end cover body 90 is formed in the shape used as an arc shape when the end cover body 90 is viewed in the width direction Y. As shown in FIG. In addition, in the end cover body 90 , in the longitudinal direction X, the outer peripheral surface 92 , which is a surface on the side where the drying chamber 11 of the drying apparatus 10 is located, also extends the end cover body 90 in the width direction Y. The shape in this case is formed in the circular arc shape used as the inner peripheral surface 91 and the concentric circle.

In this way, the roll end labyrinth seal 95 is formed on the inner peripheral surface 91 of the end cover body 90 arranged to cover the outer peripheral surface 41 of the seal roll 40 in the circumferential direction. The roll end labyrinth seal 95 is formed in a position facing the outer peripheral surface 41 of the seal roll 40 along the circumferential direction of the seal roll 40 .

FIG. 10 is a perspective view of the end cover body 90 shown in FIG. 9 . The roll end labyrinth seal 95 formed on the end cover body 90 is formed by a groove portion 96 formed on the inner peripheral surface 91 of the end cover body 90 along the circumferential direction of the seal roll 40 . has been Two groove portions 96 are formed in one end cover body 90 , and the two groove portions 96 are formed side by side in the width direction Y, ie, in the extension direction of the seal roll 40 .

Since the roll edge part labyrinth seal 95 is formed by the groove part 96 in this way, it has the space part 97 in which the side where the seal roll 40 is located is opened. That is, since the inside of the groove part 96 is a space, and the groove part 96 is formed as a groove|channel which is opened in the inner peripheral surface 91 opposite to the outer peripheral surface 41 of the seal roll 40, since the groove part The roll edge part labyrinth seal 95 which consists of 96 has the space part 97 in which the sealing roll 40 side is opened.

Further, since the roll end labyrinth seal 95 is formed having two groove portions 96 arranged in the extending direction of the seal roll 40 , the space portion 97 is also an extension of the seal roll 40 . Two are arranged in the direction. For this reason, the roll edge part labyrinth seal 95 is arranged in the extending direction of the seal roll 40, and has the some space part 97 in which the seal roll 40 side is opened.

Further, inside the groove portion 96 forming the roll end labyrinth seal 95 , closing portions 98 are formed in the vicinity of both ends in the circumferential direction of the inner peripheral surface 91 of the end cover body 90 , have. The closing portion 98 is formed in the shape of a projection connected to the groove bottom or the groove wall inside the groove portion 96 , and has a height at which it does not protrude from the inner peripheral surface 91 of the end cover body 90 . is formed As a result, the space portion 97 located inside the groove portion 96 in the roll end labyrinth seal 95 has a vicinity of both ends in the circumferential direction of the inner peripheral surface 91 of the end cover body 90 . , is closed by the occlusion part 98 .

<Partition body (100)>

Between the end cover body 90 and the conveyance part cover body 50 comprised in this way, and the opening part 16 (refer FIG. 1) formed in the partition 15 of the drying apparatus 10, the partition body 100 is placed. The partition body 100 is a partition body opening (1) communicating with the bracket 101 for attaching the partition body 100 to the frame 31, and the opening 16 formed in the partition wall 15 of the drying apparatus 10. 104, and the carrying section side wall portion 102 and the end side wall portion 103 disposed from the position of the partition body opening 104 toward the side where the carrying section cover body 50 and the end cover body 90 are located. have it

Fig. 11 is a perspective view showing the partition body 100 shown in Fig. 4 as viewed from the side where the carrying section side wall section 102 is located. 12 is a perspective view showing the partition body 100 shown in FIG. 4 as viewed from the side where the partition body opening 104 is located. The partition opening 104 of the partition body 100 is a rectangular hole having substantially the same size in the vertical direction Z as the opening 16 formed in the partition wall 15 of the drying apparatus 10. has been In the first embodiment, the partition opening 104 is formed in a rectangular shape having a side parallel to the width direction Y and a side parallel to the vertical direction Z. As shown in FIG. The partition opening 104 substantially coincides with the position of the opening 16 of the partition 15 in the state in which the gas seal structure 30 is disposed in the drying apparatus 10 , and substantially the opening of the partition 15 . It plays the same role as (16).

In addition, the partition body 100 has a length in the width direction Y longer than the length of the transport unit cover body 50 in the same direction, and the partition body 100 is attached to the gas seal structure 30 . In the arrange|positioned state, the partition body 100 is arrange|positioned so that a part overlaps with the end cover body 90 and the longitudinal direction X. As shown in FIG. Similarly, the partition opening 104 included in the partition body 100 has a length in the width direction Y longer than the length of the transport section cover body 50, and the partition body 100 has a gas seal structure ( 30), a part of the partition opening 104 also overlaps with the end cover body 90 in the longitudinal direction X.

The bracket 101 of the partition body 100 has a plate-like shape and is formed around the partition body opening 104, and the bracket 101 is formed around the partition body opening 104 in the form of an awning. , or formed in a flange-like shape.

In the state in which the partition body 100 is arranged in the gas seal structure 30 , the carrier side wall part 102 has the upper side position and the lower side position in the vertical direction Z of the partition body opening part 104 . It becomes a plate-shaped member extending from the side to which the conveyance part cover body 50 is located. That is, the carrying section side wall portion 102 is a plate-shaped member formed in a direction in which the thickness direction becomes the vertical direction Z, and the width in the width direction Y is the same as the partition opening 104 in the same direction. It is formed to be the same width as the width of

In addition, the carrying part side wall part 102 is formed in two places corresponding to the carrying part upper cover body 51 and the carrying part lower cover body 52 of the carrying part cover body 50, and the partition opening 104 is formed. ) extending from the position of the upper side to the side where the transport unit upper cover body 51 is located, and from the position of the lower side of the partition opening 104 to the side where the transport unit lower cover body 52 is located have a part In the state in which the partition body 100 is disposed on the gas seal structure 30 , the transport section side wall part 102 has an end opposite to the edge part on the partition body opening 104 side in the longitudinal direction X is transported. It is located in the vicinity of the sub upper cover body 51 and the conveyance part lower cover body 52 (refer FIG. 4). In addition, in the conveyance part side wall part 102, the conveyance part upper cover body 51 and the conveyance part lower cover body 52 are located in the vicinity of the edge part of the conveyance part side wall part 102 on the other side. ) is bent toward the side where it is located.

In the state where the partition body 100 is arrange|positioned in the gas-seal structure 30, the edge part side wall part 103 is an edge part from the position of the side of two places in the width direction Y of the partition body opening part 104. It is a plate-shaped member extending to the side where the sieve 90 is located. That is, the two end side wall portions 103 are all plate-shaped members formed in a direction in which the thickness direction becomes the width direction Y, and the width in the vertical direction Z is the same as that of the partition opening 104 . It is formed to have the same width as the width in the direction.

Moreover, in the state where the partition body 100 is arrange|positioned in the gas-seal structure 30, the edge part of the edge part side wall part 103 opposite to the edge part on the partition opening part 104 side in the longitudinal direction X is an edge part It is located in the vicinity of the cover body 90 (refer FIG. 8). Further, the end of the end side wall portion 103 on the side located in the vicinity of the end cover body 90 is a portion formed in an arc shape along the shape of the outer peripheral surface 92 of the end cover body 90 . have it

Since the carrying part side wall part 102 and the end side wall part 103 of the partition body 100 formed in this way are extended in the longitudinal direction X from the position of the side of the partition body opening part 104 formed in a rectangular shape. , when the partition body 100 is viewed in the longitudinal direction X, the carrying part side wall part 102 and the end side wall part 103 also have a rectangular shape similarly to the partition body opening part 104 . That is, the conveyance part side wall part 102 and the end side wall part 103 formed in each two places are each cylindrical shape by connecting the adjacent conveyance part side wall part 102 and the end side wall part 103. is formed For this reason, in the state in which the partition body 100 is arrange|positioned in the gas-seal structure 30, the conveyance part side wall part 102 and the edge part side wall part 103 move from the position of the partition body opening part 104 to the conveyance part cover. A passage spaced apart from the outside of the square cylinder is formed over the position of the sieve 50 and the end cover body 90 .

When viewed in the longitudinal direction X, inside the square cylinder formed by the conveying unit side wall portion 102 and the end side wall portion 103, the conveying unit labyrinth seal 60 and the seal roll 40 are positioned For this reason, the passage formed by the carrying part side wall part 102 and the end side wall part 103 faces from the partition opening 104 to the position between the seal roll 40 and the carrying part labyrinth seal 60 . is made into a passage. In other words, since the partition body opening 104 performs substantially the same role as the opening 16 of the partition wall 15, the partition body 100 includes the opening 16 and the outer peripheral surface of the seal roll 40 ( 41) and a space communicating the position between the transport part labyrinth seal 60 is partitioned.

<Sealing member 110>

In addition, in the frame 31 , the stay 32 , the conveying unit cover body 50 , the end cover body 90 , and the partition body 100 , seals that ensure airtightness are provided at portions in proximity to or in contact with each other, respectively. A member 110 is disposed. For example, at both ends in the width direction Y of the conveyance part cover body 50, the conveyance part cover body side sealing member 111 is arrange|positioned as the sealing member 110, and the width direction Y of the edge part cover body 90. An end cover body-side sealing member 112 is disposed as the sealing member 110 at an end portion on the side on which the conveying unit cover body 50 is located (refer to FIG. 2 ). As for these conveyance part cover body side sealing member 111 and the end cover body side sealing member 112, the position of the conveyance part upper cover body 51 movable in the up-down direction Z is the actual use state of the gas sealing structure 30. At the position of , that is, the position in which the conveyance part upper cover body 51 is located near the lower part and approached the seal roll 40, it is a positional relationship in contact with each other. In addition, as for the conveyance part cover body side sealing member 111 and the edge part cover body side sealing member 112, the position in the up-down direction Z of the conveyance part upper cover body 51 is located in the upper vicinity, and the sealing roll 40 In the positions of the state spaced apart upward, they are spaced apart from each other. In addition, the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 which are contacted or separated in this way are wedge-shaped with mutual contact surfaces inclined with respect to the moving direction of the conveyance part cover body 50 . formed in the shape.

In addition, in the carrying part cover body 50 , in the vicinity of the part to which the carrying part side wall part 102 of the partition body 100 adjoins, the edge part side wall part 103 of the carrying part side wall part 102 is attached. The sealing member 114 for a cover body partition body which is the sealing member 110 which contacts the surface of the outer side of the passage formed by this is arrange|positioned (refer FIG. 4). The sealing member 114 for a lid partition body is arrange|positioned at both the conveyance part upper cover body 51 and the conveyance part lower cover body 52, and the sealing member 114 for lid body partition body also has the upper part of a conveyance part. It extends in the width direction Y along the cover body 51 and the conveyance part lower cover body 52, and is formed. Moreover, in the partition body 100, the partition body bracket sealing member 118 (FIG. 5, 8) is arranged. The partition bracket sealing member 118 is disposed over one circumference of the partition body opening 104 at a position surrounding the partition body opening 104 in the bracket 101 of the partition body 100 .

Moreover, in the partition body 100, the partition body outer side sealing member 116 and the partition body inner side sealing member 117 are arrange|positioned as the sealing member 110 (refer FIG. 8). Among these, the partition body outer sealing member 116 is an end of the carrying section side wall portion 102 of the partition body 100 opposite to the end on the side where the partition body opening 104 is located. It is respectively arrange|positioned in the part located above the upper end of the cover body 90, and the part located in the lower end of the lower end of the end cover body 90, and contact the end cover body 90, respectively.

In addition, the partition body inner sealing member 117 is at an end of the end side wall portion 103 of the partition body 100 opposite to the end on the side where the partition body opening 104 is located. It is disposed on the inner surface of the passage formed by the portion 102 . That is, in the end side wall portion 103 of the partition body 100 , the end opposite to the end on the side where the partition body opening 104 is located is a circle along the outer peripheral surface 92 of the end cover body 90 . Although it is formed including the part formed in the arc shape, the partition body inner sealing member 117 is formed along the outer peripheral surface 92 of the edge part cover body 90 similarly to the edge part of the partition body opening part 104, and the edge part cover. It comes into contact with the outer peripheral surface 92 of the sieve 90 .

As described above, the sealing member 110 disposed at a portion where other members come into contact with each other is made of a material having elasticity such as a rubber member, and the contact surface is brought into close contact with the target member due to elastic deformation. By doing so, it is possible to ensure airtightness.

<Operation of gas seal structure 30 and extraction drying device 1>

The gas seal structure 30 and the extraction drying apparatus 1 which concern on this Embodiment 1 contain the structure as mentioned above, and the operation|action is demonstrated below. When using the gas seal structure 30 provided in the extraction and drying apparatus 1, first, the gap between the partition plate 63 of the transport part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 is closed. Adjust. When adjusting the gap between the partition plate 63 of the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40, for example, the holding bolt 65 which the conveyance part labyrinth seal 60 has in a state in which the partition plate 63 is brought into contact with the outer circumferential surface 41 of the seal roll 40 , and the partition plate 63 is held in contact with the outer circumferential surface 41 of the seal roll 40 . Tighten the bolts (65). Thereafter, the vertical direction Z of the conveying unit cover body 50 holding the conveying unit labyrinth seal 60 so that the clearance between the partition plate 63 and the outer peripheral surface 41 of the seal roll 40 becomes a desired clearance. adjust the position in

Adjustment of the conveyance part cover body 50 is performed in the conveyance part upper cover body 51 by adjustment of the stopper 87 with which the stroke structure 70 is equipped. That is, although the conveyance part upper cover body 51 is movable in the up-down direction Z by the stroke structure 70, The conveyance part top cover in the state in which the rod 73 of the air cylinder 71 is extended. The position of the sieve 51 in the vertical direction Z is adjustable by the stopper 87 . For this reason, adjustment of the gap between the partition plate 63 of the upper labyrinth seal 61 of the conveyance part and the outer peripheral surface 41 of the seal roll 40 is controlled by the partition plate 63 of the upper labyrinth seal 61 of the conveyance part. By adjusting the stopper 87 from the state in contact with the outer peripheral surface 41 of this seal roll 40, the desired clearance gap and the conveyance part upper cover body 51 are moved upward. Thereby, the clearance gap between the partition plate 63 of the upper part labyrinth seal 61 of a conveyance part, and the outer peripheral surface 41 of the seal roll 40 is made into a desired clearance gap.

In addition, in the conveyance part lower cover body 52, it carries out by adjustment of the jack structure 36. As shown in FIG. That is, since the conveyance part lower cover body 52 is movable in the up-down direction Z by the jack structure 36, the partition plate 63 of the conveyance part lower labyrinth seal 62, and the seal roll 40 ), adjustment of the gap between the outer peripheral surface 41 of the carrying unit lower labyrinth seal 62 is performed from the state in which the partition plate 63 of the lower labyrinth seal 62 is in contact with the outer peripheral surface 41 of the seal roll 40, the jack structure 36 By adjusting the desired gap, the conveyance part lower cover body 52 is moved downward. Thereby, the clearance gap between the partition plate 63 of the lower part labyrinth seal 62 of a conveyance part, and the outer peripheral surface 41 of the seal roll 40 is made into a desired clearance gap.

The clearance between the partition plate 63 of the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 adjusted in this way is adjusted, for example to about 1 mm.

In addition, you may perform the clearance gap between the partition plate 63 of the conveyance part labyrinth seal 60, and the outer peripheral surface 41 of the seal roll 40 by methods other than this. For example, between the partition plate 63 of the transport section labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40, an adjustment sheet (not shown) having a thickness equal to the desired gap is transferred to the transport section The partition plate 63 is positioned between the partition plate 63 of the labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40, and the vertical direction Z of the partition plate 63 is adjusted in this state. ) is brought into contact with the control sheet. Then, by taking out the sheet for adjustment, the gap between the partition plate 63 of the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 can be made into a desired gap|interval.

In this way, after making the gap between the partition plate 63 of the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 a desired gap|interval, in the extraction and drying apparatus 1, the sheet-like member S When performing extraction and drying, the sheet-like member S formed in the film shape of a continuous thin film is made to pass through the conveyance path|route in the extraction and drying apparatus 1 before operation|operation of an apparatus. For this reason, the sheet-like member S is also made to pass also in the conveyance path|route of the sheet-like member S in the gas-seal structure 30 arrange|positioned in the extraction and drying apparatus 1 .

In the gas seal structure 30 , the conveyance path of the sheet-like member S is between the conveyance unit upper labyrinth seal 61 held by the conveyance unit upper cover body 51 and the outer peripheral surface 41 of the seal roll 40 . is made of part of For this reason, when making the sheet-like member S pass through the conveyance path|route of the sheet-like member S in the gas seal structure 30, it is between the conveyance part upper labyrinth seal 61 and the outer peripheral surface 41 of the seal roll 40. The gap between the partition plate 63 of the upper labyrinth seal 61 of the transport section and the outer peripheral surface 41 of the seal roll 40 is adjusted to a small gap.

On the other hand, the sheet-like member S is in the form of a thin film and has low rigidity. It is very difficult to let the sheet-like member S pass. For this reason, when passing the sheet-like member S between the conveyance part upper labyrinth seal 61 and the outer peripheral surface 41 of the seal roll 40, the conveyance part upper cover holding the conveyance part upper labyrinth seal 61 is carried out. The sieve 51 is moved upward. In this case, the movement in the vertical direction Z of the conveyance section upper cover body 51 is performed by actuating the stroke structure 70 .

13 : is explanatory drawing which shows the state which moved the conveyance part upper cover body 51 which the gas seal structure 30 shown in FIG. 2 has upward. 14 is a cross-sectional view taken along line D-D of FIG. 13 . When the conveyance part upper cover body 51 is moved upward, the rod 73 of the air cylinder 71 which the stroke structure 70 has is contracted. As a result, the bracket 85 connected to the rod 73 moves upward while being guided by the guide block 82 , and the transfer unit upper cover body 51 connected to the guide block 82 also includes the bracket ( 85) moves upward with the movement.

When the transport section upper cover body 51 moves upward, the transport section upper labyrinth seal 61 held by the transport section upper cover body 51 also moves upward, so that the transport section upper labyrinth seal ( The gap between the partition plate 63 of 61 and the outer peripheral surface 41 of the seal roll 40 becomes very large. In this way, the sheet-like member S passes between the partition plate 63 of the upper labyrinth seal 61 of the conveyance unit and the outer peripheral surface 41 of the seal roll 40 in a state where the gap is increased.

When the sheet-like member S is passed between the conveyance part upper labyrinth seal 61 and the outer peripheral surface 41 of the seal roll 40, the rod 73 of the air cylinder 71 included in the stroke structure 70 is elongated. , the transfer unit upper cover body 51 is moved downward.

Here, when the stopper 87 provided on the bracket 85 of the stroke structure 70 extends the rod 73 of the air cylinder 71 and the bracket 85 moves downward, the frame ( 31) abuts against the upper surface of the upper stay 32 (see FIG. 2). Thereby, the downward movement of the bracket 85 in the up-down direction Z is regulated, and it becomes impossible to move downward from the position where the stopper 87 abuts against the stay 32. As shown in FIG. In connection with this, the conveyance part upper cover body 51 connected to the bracket 85 also becomes unable to move below the position where the stopper 87 abuts against the stay 32. As shown in FIG.

For this reason, when the conveyance part upper cover body 51 is moved downward by extending the rod 73 of the air cylinder 71, the position in the vertical direction Z of the conveyance part upper cover body 51 is, It becomes a position at the time of adjusting the clearance gap between the partition plate 63 of the upper part labyrinth seal 61 of a conveyance part, and the outer peripheral surface 41 of the seal roll 40 to a desired clearance gap. Accordingly, the sheet-like member S is passed between the partition plate 63 of the upper labyrinth seal 61 of the conveying section adjusted to a desired gap and the outer circumferential surface 41 of the seal roll 40, and the sheet-like member S is placed between the upper labyrinth seal 61 and the seal roll 40 of the conveying unit, and is in a state capable of being conveyed.

Moreover, since the conveyance part lid body side sealing member 111 which is the sealing member 110 and the sealing member 114 for lid body partition bodies are arrange|positioned in the conveyance part upper cover body 51, the conveyance part upper cover body 51 ) is moved downward, the conveyance part cover body side sealing member 111 and the sealing member 114 for cover body partitions come into contact with another member, and form a sealing surface. Specifically, when the conveyance unit upper cover body-side sealing members 111 disposed at both ends of the conveyance unit upper cover body 51 in the width direction Y move the conveyance unit upper cover body 51 downward, It contacts the end cover body side sealing member 112 arrange|positioned at the edge part in the width direction Y of the edge part cover body 90. As shown in FIG.

That is, the conveyance part cover body side sealing member 111 is spaced apart from the end cover body side sealing member 112 when the conveyance part upper cover body 51 is moved upward, but the conveyance part upper cover body 51 is moved downward. When moved, the conveyance part cover body side sealing member 111 contacts the edge part cover body side sealing member 112. In other words, the conveyance unit cover body-side sealing member 111 disposed on the conveyance unit upper cover body 51 and the end cover body-side sealing member 112 disposed on the end cover body 90 are formed by a labyrinth seal on the conveyance unit upper part. In a state where 61 is a position spaced apart from the outer peripheral surface 41 of the seal roll 40, it is spaced apart from each other, and the position of the upper labyrinth seal 61 of the conveying unit is a position of the conveying state of the sheet-like member S in contact with each other.

Thereby, the edge part in the width direction Y of the conveyance part upper cover body 51 and the edge part in the width direction Y of the end cover body 90 move the conveyance part upper cover body 51 downward, In a state where the position of the upper labyrinth seal 61 of the conveying unit is the position of the sheet-like member S being conveyed, airtightness is ensured by the conveying unit cover body side sealing member 111 and the end cover body side sealing member 112 . do. In that case, since the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 are formed in the wedge-shaped shape whose mutual contact surfaces are inclined with respect to the moving direction of the conveyance part upper cover body 51, , The lowering operation of the transport section upper cover body 51 is not disturbed even when the transport section upper cover body 51 is moved downward. That is, when the shape of the conveyance part cover body side sealing member 111 or the end cover body side sealing member 112 is a shape which has a surface orthogonal to the moving direction of the conveyance part upper cover body 51, the conveyance part upper part When the cover body 51 is moved downward, the surfaces orthogonal to the moving direction of the conveyance part upper cover body 51 come into contact with each other, and during the lowering operation of the conveyance part upper cover body 51 , the conveyance part cover body side seal There is a possibility that the member 111 and the end cover body side sealing member 112 are caught. On the other hand, when the mutual contact surfaces of the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 are formed in the wedge-shaped shape which inclines with respect to the moving direction of the conveyance part upper cover body 51 In this case, even when the transport unit upper lid body 51 is moved downward, it can be moved without interfering with the lowering operation of the transport unit upper lid body 51 .

Moreover, since the mutual contact surfaces of the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 are formed in the wedge-shaped shape, by moving the conveyance part upper cover body 51 downward, both contact surfaces When this contact is made, the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 have a centering action which positions the position in the width direction Y of the conveyance part upper cover body 51 to a predetermined position. causes Thereby, the reproducibility of the arrangement position of the conveyance part upper cover body 51 can be improved. Moreover, since the mutual contact surfaces of the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 are formed in the wedge-shaped shape, when mutually contacting, they contact in a compressed state, respectively. Thereby, higher airtightness is ensured.

In addition, the sealing member 114 for the lid partition body is spaced apart from the partition body 100 when the transport unit upper lid body 51 is moved upward, but when the transport unit upper lid body 51 is moved downward. , The sealing member 114 for a cover body partition body contacts the conveyance part side wall part 102 of the partition body 100 . In other words, in the sealing member 114 for the cover partition body disposed on the upper cover body 51 of the conveyance unit, the position at which the upper labyrinth seal 61 of the conveyance unit upper part is spaced apart from the outer peripheral surface 41 of the seal roll 40 is In this state, it is spaced apart from the partition body 100 , and in a state in which the position of the conveyance part upper labyrinth seal 61 is the position in the conveyed state of the sheet-like member S, it is in contact with the partition body 100 . As a result, in the portion where the conveyance unit upper cover body 51 and the partition body 100 are close to each other, the conveyance unit upper cover body 51 is moved downward so that the position of the conveyance unit upper labyrinth seal 61 is adjusted to the sheet In the state used as the position of the conveyance state of the upper member S, airtightness is ensured by the sealing member 114 for cover body partitions.

The extraction and drying apparatus 1 is in the state which can convey the sheet-like member S through between the conveyance part upper labyrinth seal 61 and the seal roll 40 of the gas-seal structure 30 in this way, The member S is extracted and dried. When performing extraction and drying of the sheet-like member S in the extraction and drying apparatus 1, the extraction and drying apparatus 1 includes a polyolefin resin molded in an upstream step in the conveying direction of the sheet-like member S. A large number of micropores are perforated, and the thin film-like sheet-like member S in which the liquid plasticizer entered the micropores is conveyed to the extraction device 5 . In the extraction apparatus 5, the sheet-like member S is immersed in the solvent 7 stored in the solvent tank 6, conveying the sheet-like member S, and a liquid plasticizer is removed from the sheet-like member S.

The sheet-like member S from which the liquid plasticizer has been removed is conveyed from the extraction apparatus 5 to the drying apparatus 10 . In the drying apparatus 10, the sheet-like member S is dried by blowing air to the sheet-like member S with the air knife 25 in the drying chamber 11 while conveying the sheet-like member S, and the sheet-like member S is dried. The solvent 7 adhering to S is removed from the sheet-like member S.

The dried sheet-like member S is sent to the gas seal structure 30 from the opening 16 formed in the partition 15 of the drying apparatus 10 . In the gas seal structure 30, since the sheet-like member S is prepared in advance so that it may be conveyed through between the conveyance part upper labyrinth seal 61 and the seal roll 40, the sheet-like member S is carried out by the upper labyrinth of the conveyance part. It is conveyed from the extraction and drying apparatus 1 to a downstream process through between the seal|sticker 61 and the seal roll 40.

Here, in the drying chamber 11 of the drying apparatus 10, the sheet-like member S is dried, so that the solvent 7 adhering to the sheet-like member S in the extraction device 5 is vaporized in the drying chamber 11, It is filled in the drying chamber 11 . For this reason, although it is preferable that the gas in the drying chamber 11 does not leak out of the drying chamber 11, a slight gap is formed between the conveyance part labyrinth seal 60 and the seal roll 40, and this gap is It is easy to leak from. In detail, between the transport part labyrinth seal 60 and the seal roll 40, between the partition plate 63 of the transport part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40, slightly gap is formed.

On the other hand, the conveyance part labyrinth seal 60 has a plurality of space portions 67 which are partitioned by a plurality of partition plates 63 and a plurality of spacers 64 and open on the side where the seal roll 40 is located. , are formed side by side in the conveyance direction of the sheet-like member S, or the longitudinal direction X. For this reason, the gas which is about to leak through between the conveyance part labyrinth seal 60 and the seal roll 40 is the partition plate 63 of the conveyance part labyrinth seal 60, and the outer peripheral surface 41 of the seal roll 40. ) and flows through the space portion 67 alternately.

Therefore, the gas passing between the transport part labyrinth seal 60 and the seal roll 40 passes between the partition plate 63 of the transport part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 . It is reduced in pressure each time it reaches the space portion 67 through the passage, and the pressure to flow through between the transport unit labyrinth seal 60 and the seal roll 40 is weakened. As a result, the gas that is about to leak through between the conveyance part labyrinth seal 60 and the seal roll 40 is weakened by the pressure in the gas flow direction is weakened, and the gas flow is weakened in the longitudinal direction X. Between both sides of the conveyance part labyrinth seal 60, gas becomes difficult to leak through between the conveyance part labyrinth seal 60 and the seal roll 40 in either direction.

In addition, from the position of the opening 16 formed in the partition wall 15 of the drying apparatus 10 or the partition opening 104 to the position of the conveying unit cover body 50 and the end cover body 90 , , the passage is formed by the partition body 100 , but at the end of the partition body 100 on the opposite side to the end on the side where the partition body opening 104 is located in the longitudinal direction X, the sealing member 110 ) is placed. For this reason, the end part of the partition body 100 opposite to the edge part on the side where the partition body opening part 104 is located, and the conveyance part cover body 50 and the end cover body 90 are the sealing member 110 ) to ensure airtightness.

That is, in the partition body 100 , in the longitudinal direction X, the end opposite to the end on the side where the partition opening 104 is located, and the carrying part cover body 50 are formed by the carrying part cover body 50 . The sealing member 114 for a lid|cover body partition body arrange|positioned is sealed by contacting the conveyance part side wall part 102 of the partition body 100. As shown in FIG. In the partition body 100 , in the longitudinal direction X, an end opposite to the end on the side where the partition body opening 104 is located, and the end cover body 90 are the end sidewalls of the partition body 100 . When the partition body outer sealing member 116 and the partition body inner sealing member 117 arrange|positioned in the part 103 contact the edge part cover body 90, it is sealed. Thereby, by the carrying part side wall part 102 and the end side wall part 103 of the partition body 100, from the position of the partition body opening part 104, the carrying part cover body 50 and the edge part cover body 90 are separated. The passage formed over the position includes an end of the partitioning body 100 on the side where the transport section cover 50 and the end cover body 90 are located, and the transport section cover body 50 or the end cover body ( By sealing 90 by the sealing member 110, airtightness is ensured.

Further, the end portions on both sides in the width direction Y of the conveyance unit cover body 50 and the end portions of the end cover body 90 on the side where the conveyance unit cover body 50 is located are also included in the conveyance unit cover body ( When the conveyance part cover body side sealing member 111 arrange|positioned at 50 and the end cover body side sealing member 112 arrange|positioned at the end cover body 90 mutually contact, it seals, and airtightness is ensured. Thereby, the gas from the inside of the drying chamber 11 is transferred to the portion between the conveying unit cover body 50, the end cover body 90, and the partition body 100, and the conveyance unit cover body 50 and the end cover body ( 90), it is also difficult to leak from the part between them.

In addition, on the inner peripheral surface 91 of the end cover body 90 , a plurality of space portions 97 , which are opened on the side of the seal roll 40 , are arranged in the extending direction of the seal roll 40 , the roll end labyrinth seal 95 . ) is formed. For this reason, even when gas enters between the inner peripheral surface 91 of the end cover body 90 and the seal roll 40 , this gas enters the roll end labyrinth seal 95 in the extending direction of the seal roll 40 . ), the gas hardly leaks through between the roll end labyrinth seal 95 and the seal roll 40 .

Moreover, the exhaust duct 22 is arrange|positioned in the drying apparatus 10 so that the solvent 7 vaporized in the drying chamber 11 may not be discharged|released to air|atmosphere. The exhaust duct 22 draws in the gas in the drying chamber 11 and exhausts it out of the drying chamber 11 , and sends the exhausted gas to the gas recovery device. The gas recovery device recovers the vaporized solvent 7 from the gas sent from the exhaust duct 22 . Since the gas inside the drying chamber 11 is exhausted from the exhaust duct 22 in this way, atmospheric pressure is low with respect to the outer side of the drying chamber 11. As shown in FIG. That is, the inside of the drying chamber 11 has a negative pressure with respect to the exterior of the drying chamber 11 .

For this reason, between both sides of the conveyance part labyrinth seal 60 in the longitudinal direction X, the gas is a position on the downstream side in the conveyance direction of the outer side of the drying chamber 11 or the sheet-like member S. It is easy to flow toward the side where the drying chamber 11 is located. Accordingly, the gas in the drying chamber 11 is less likely to leak to the outside of the drying chamber 11 more reliably, and the gas seal structure 30 prevents the gas in the drying chamber 11 from leaking out of the drying chamber 11 . , the sheet-like member S can be conveyed from the inside of the drying chamber 11 toward the outside of the drying chamber 11 .

As described above, in the gas seal structure 30 capable of suppressing gas leakage, the seal roll 40 may be attached/detached during maintenance, but the conveyance unit cover body ( As for the edge part cover body 90 arrange|positioned on both sides of 50, the range which covers the outer peripheral surface 41 of the seal roll 40 is the range of about 180 degrees of the circumferential direction of the seal roll 40. As shown in FIG. For this reason, when the seal roll 40 isolate|separates the bearing part 35 which supports the shaft edge part 45 rotatably from the shaft edge part 45, the sealing roll 40 is not covered with the edge part cover body 90. By moving (40), the seal roll (40) can be easily separated.

When the seal roll 40 is installed in the gas seal structure 30 , the seal roll 40 is disposed from a position where the end cover body 90 is not formed in the circumferential direction with respect to the end cover body 90 , , by providing the bearing part 35 to the shaft end part 45, it can be installed easily. Thereby, the seal roll 40 can be easily attached and detached with respect to the gas seal structure 30, and maintainability can be ensured.

<Effect of Embodiment 1>

In the gas seal structure 30 and extraction drying apparatus 1 according to the first embodiment described above, the seal roll 40 is arranged in the conveyance direction of the sheet-like member S at a position opposite to the outer peripheral surface 41 of the seal roll 40, and the seal roll ( Since the conveyance part labyrinth seal 60 which has the some space part 67 with which the 40 side is opened is arrange|positioned, on both sides of the seal roll 40 in the conveyance direction of the sheet-like member S, gas Flow in the direction of each other can be suppressed. Moreover, since the exhaust duct 22 which makes the inside of the drying chamber 11 which is a process chamber a negative pressure with respect to the side on which the seal roll 40 is arrange|positioned is provided, the conveyance part labyrinth in the conveyance direction of the sheet-like member S is provided. On both sides of the seal 60, the flow of gas can be made easy to flow from the downstream in the conveyance direction of the sheet-like member S to the side where the drying chamber 11 is located. For this reason, gas leakage can be suppressed without making the clearance gap of the part which secures sealing property with respect to the sheet-like member S small more than necessary, and sealing property can be ensured without increasing the precision at the time of manufacture. can As a result, sealing property can be easily ensured.

Moreover, between the opening part 16 formed in the partition wall 15 of the drying apparatus 10, the conveyance part cover body 50, and the edge part cover body 90, the opening part 16 and the sealing roll 40 Since the partitioning body 100 dividing the space communicating the position between the outer peripheral surface 41 and the conveyance part labyrinth seal 60 is arrange|positioned, the gas in the drying chamber 11 moves to the outer peripheral surface of the seal roll 40 ( 41) and the conveyance part labyrinth seal 60 can be suppressed from leaking from anything other than a position. As a result, the sealing property can be improved more reliably.

Further, the end cover body 90 is provided with a roll end labyrinth seal 95 arranged in the extending direction of the seal roll 40 and having a plurality of space portions 97 in which the seal roll 40 side is opened. Therefore, the flow of gas in the extending direction of the seal roll 40 can be suppressed by the roll end labyrinth seal 95 . As a result, the sealing property can be improved more reliably.

Moreover, since the conveyance part cover body 50 can change the distance from the outer peripheral surface 41 of the seal roll 40, the outer peripheral surface 41 of the conveyance part labyrinth seal 60 and the seal roll 40. When passing the sheet-like member S therebetween, by increasing the distance between the conveyance part cover body 50 holding the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40, it passes easily can do it Thereby, even when the sheet-like member S is in the form of a thin film and has low rigidity, the sheet-like member S passes easily between the conveyance part labyrinth seal 60 and the outer peripheral surface 41 of the seal roll 40 . can do it As a result, the ease of use of the gas seal structure 30 can be improved.

In addition, the conveyance unit cover body-side sealing member 111 disposed on the conveyance unit cover body 50 and the end cover body-side sealing member 112 disposed on the end cover body 90 have mutual contact surfaces. Since it is formed in the wedge-shaped shape inclined with respect to the moving direction of 50, when the carrying part cover body 50 moves in the direction in which both sealing members 110 approach, when they come into contact with each other, each compresses. contact in a state of being Thereby, higher airtightness can be ensured and the sealing property of the part between the conveyance part cover body 50 and the end cover body 90 can be improved. As a result, the sealing property can be improved more reliably.

Moreover, since the mutual contact surfaces of the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 are formed in a wedge-shaped shape, even when moving the conveyance part upper cover body 51 downward, conveyance It can be moved without interfering with the lowering operation of the sub-upper cover body 51 . Moreover, the reproducibility of the arrangement position of the conveyance part upper cover body 51 is improved by the centering action when the mutual contact surfaces of the conveyance part cover body side sealing member 111 and the end cover body side sealing member 112 come into contact. can As a result, when lowering the conveyance part upper cover body 51 from an upper position to set the sheet-like member S to a state in which it can be conveyed, the conveyance part upper cover body 51 is arrange|positioned more easily and reliably in the appropriate position. can do.

[Embodiment 2]

The gas seal structure 30 according to the second embodiment has substantially the same configuration as the gas seal structure 30 according to the first embodiment, but is characterized in that it includes an exhaust structure 150 . Since the other structure is the same as that of Embodiment 1, while the description is abbreviate|omitted, the same code|symbol is attached|subjected.

15 : is a front view of the gas-seal structure 30 which concerns on Embodiment 2, It is the arrow A-A of FIG. 16 is a cross-sectional view taken along line E-E of FIG. 15 . Fig. 17 is a perspective view of a principal part taken along section E-E of Fig. 15; Similar to the gas seal structure 30 according to the first embodiment, the gas seal structure 30 according to the second embodiment is provided in the extraction drying apparatus 1 (refer to FIG. 1 ), and includes a seal roll 40 ; It has the conveyance part labyrinth seal 60 held by the conveyance part cover body 50, and the roll edge part labyrinth seal 95 formed in the edge part cover body 90. As shown in FIG. Further, in the gas seal structure 30 according to the second embodiment, the space portion 67 included in the transport section labyrinth seal 60 and the space portion 97 included in the roll end labyrinth seal 95 are positioned The exhaust structure 150 for exhausting gas from the space parts 67 and 97 toward the outside of the drying chamber 11 (refer FIG. 1) is provided.

<Conveyor side exhaust structure 151>

The conveyance unit side exhaust structure 151 , which is an exhaust structure 150 that exhausts from the space 67 of the conveyance unit labyrinth seal 60 toward the outside of the drying chamber 11 , includes a spacer through hole 155 and a conveyance unit side. It has an exhaust port 161 and is comprised. The spacer through-hole 155 is a hole penetrating the spacer 64 included in the transport part labyrinth seal 60 in the vertical direction Z. The spacer through-hole 155 penetrates the spacer 64 in the vertical direction Z, so that the space 67 of the transport unit labyrinth seal 60 and the inside of the casing 53 of the transport unit cover 50 are formed. With respect to the spacer 64 which communicates with each other and extends in the width direction Y, a plurality of them are formed side by side in the width direction Y. The spacer through-holes 155 thus formed are formed on both the spacer 64 of the upper labyrinth seal 61 of the carrying section and the spacer 64 of the lower labyrinth seal 62 of the carrying section. In the second embodiment, the spacer through-holes 155 are formed in three spacers 64 near the center in the overlapping direction among the plurality of spacers 64 alternately overlapped with the partition plate 63, have.

The conveyance unit side exhaust port 161 serves as an exhaust port 160 for exhausting the air from the space 67 of the conveyance unit labyrinth seal 60 toward the outside of the drying chamber 11 . The transport section side exhaust port 161 is disposed at an end of the casing 53 of the transport section cover 50 in the vertical direction Z opposite to the side holding the transport section labyrinth seal 60 . That is, in the transport section upper cover body 51 , the transport section side exhaust port 161 is disposed at the upper end of the casing 53 in the vertical direction Z, and in the transport section lower cover body 52 , the transport section side exhaust port 161 . Reference numeral 161 is disposed at the lower end of the casing 53 in the vertical direction Z.

The conveyance part-side exhaust port 161 arranged in this way communicates with the inside of the casing 53 . The transport unit side exhaust port 161 is capable of evacuating the gas located in the space 67 of the transport unit labyrinth seal 60 , and an exhaust duct 22 included in the drying device 10 ( FIG. 1 ). Reference), it is connected to a blower (not shown) such as a blower for taking in air, and a gas recovery device (not shown) for recovering a predetermined component in the gas.

<End-side exhaust structure 152>

18 is a cross-sectional view taken along the line F-F of FIG. 15 . Fig. 19 is a perspective view of an essential part in the cross section F-F of Fig. 15 . The end-side exhaust structure 152, which is an exhaust structure 150 that exhausts the air from the space 97 of the roll end labyrinth seal 95 toward the outside of the drying chamber 11, includes an end cover body through-hole 156; It has an end cover body exhaust chamber 157 and the end side exhaust port 162, and is comprised. The end cover body exhaust chamber 157 is a space formed in the vicinity of the outer peripheral surface 92 of the end cover body 90 , and the end cover body through hole 156 has a roll end labyrinth seal 95 . of the space portion 97 and a hole penetrating the end cover body exhaust chamber 157 .

Fig. 20 is a perspective view of the end cover body 90 shown in Fig. 19 . 21 is a perspective view of the end cover body 90 shown in FIG. 20 as viewed from the outer peripheral surface 92 side. Fig. 22 is a perspective view of a principal part showing a state in which the end cover body 90 shown in Fig. 20 is cut in the horizontal direction. FIG. 23 is a perspective view of a principal part showing a state in which the end cover body 90 shown in FIG. 20 is cut along the groove portion 96. As shown in FIG. The end cover body exhaust chamber 157 is formed by covering the groove formed in the outer circumferential surface 92 of the end cover body 90 with the exhaust chamber cover member 158 that is flush with the outer circumferential surface 92 . It is a space to be formed, and the position in the width direction Y is formed at the same position as the groove portion 96 of the roll end labyrinth seal 95 . Specifically, the groove forming the end cover body exhaust chamber 157 has a position in the width direction Y on the outer peripheral surface 92 of the end cover body 90 of the roll end labyrinth seal 95 . It is a groove formed in an arc shape along the groove part 96 in the same position as the groove part 96. As shown in FIG. For this reason, two grooves forming the end cover exhaust chamber 157 are formed side by side in the width direction Y, similarly to the groove portions 96 of the roll end labyrinth seal 95 .

The exhaust chamber cover member 158 serves as a cover for closing the opening of the groove formed in this way with respect to the outer peripheral surface 92 . As a result, the groove formed in the outer peripheral surface 92 of the end cover body 90 is closed, and the groove becomes a space closed by the exhaust chamber cover member 158 . The space thus formed is formed as an end cover exhaust chamber 157 , and the end cover exhaust chamber 157 corresponds to the two groove portions 96 included in the roll end labyrinth seal 95 , 2 dog is formed The two end cover body exhaust chambers 157 are respectively arranged at the same positions in the width direction Y as the corresponding groove portions 96 in the roll end labyrinth seal 95 .

The end cover body through-hole 156 is a hole penetrating between the end cover body exhaust chamber 157 formed in this way and the corresponding groove part 96 . For this reason, the end cover body through-hole 156 communicates with the end cover body exhaust chamber 157 and the space portion 97 of the roll end labyrinth seal 95 . In addition, a plurality of end cap body through-holes 156 are formed in the space portion 97 of each roll end labyrinth seal 95 , and the plurality of end cap body through-holes 156 are formed in the end cap body ( The inner peripheral surface 91 of 90 is formed in parallel with the center of the circular arc as the center.

The end side exhaust port 162 serves as an exhaust port 160 for exhausting the air from the space portion 97 included in the roll end labyrinth seal 95 toward the outside of the drying chamber 11 . The end side exhaust port 162 is provided in the exhaust chamber cover member 158 serving as the cover of the end cover body exhaust chamber 157 , and the end side exhaust port 162 is one for each end cover body exhaust chamber 157 . Each is placed. Further, the end-side exhaust ports 162 of the end cover exhaust chamber 157 arranged in the width direction Y have different positions in the circumferential direction of the arc of the outer peripheral surface 92 of the end cover body 90 . is placed in Further, in the second embodiment, when the end side exhaust port 162 is provided on the outer peripheral surface 92 of the end cover body 90 during manufacture, the end side exhaust port is provided so as to facilitate the installation of the two end side exhaust ports 162 . Although the phases of 162 are different from each other, the two end-side exhaust ports 162 are in the same phase as long as the two end-side exhaust ports 162 can be appropriately provided to the end cover body 90 at the time of manufacture. may be placed.

The end-side exhaust port 162 arranged in this way is capable of exhausting the gas located in the space portion 97 of the roll end labyrinth seal 95, and similarly to the conveying unit-side exhaust port 161, intake It is connected to a blower (not shown), such as a blower, and a gas recovery device (not shown) which collect|recovers predetermined components in gas.

<Operation of gas seal structure 30>

The gas seal structure 30 which concerns on this Embodiment 2 includes the structure as mentioned above, and the operation|action is demonstrated below. In the gas seal structure 30 according to the second embodiment, when the sheet-like member S is extracted and dried in the extraction and drying apparatus 1 provided with the gas seal structure 30, the conveyance part labyrinth seal 60 The gas located in the space portion 67 is exhausted by the transport unit side exhaust structure 151 , and the gas located in the space portion 97 of the roll end labyrinth seal 95 is discharged by the end side exhaust structure 152 . exhausted by

In detail, the conveyance unit side exhaust structure 151 uses the suction force of a blower connected to the conveyance unit side exhaust structure 151 to space the gas located in the space 67 of the conveyance unit labyrinth seal 60 . It is sucked in through the through hole 155 and exhausted from the conveying unit side exhaust port 161 through the inside of the casing 53 of the conveying unit cover body 50 . Thereby, when the inside of the drying chamber 11 of the drying apparatus 10 is negative pressure, the gas which flows from the outside of the drying chamber 11 to the part between the conveyance part labyrinth seal 60 and the seal roll 40 is removed from the drying chamber 11 ), it can be exhausted from the conveying unit side exhaust port 161 .

Similarly, the end-side exhaust structure 152 uses the suction force of a blower connected to the end-side exhaust structure 152 to dissipate the gas located in the space 97 of the roll-end labyrinth seal 95 to the end cover body. It is sucked in from the through hole 156 and exhausted from the end side exhaust port 162 through the end cover body exhaust chamber 157 . Thereby, when the inside of the drying chamber 11 of the drying apparatus 10 is negative pressure, the gas which flows from the outside of the drying chamber 11 to the part between the roll end labyrinth seal 95 and the seal roll 40 is removed from the drying chamber 11 ), it can be exhausted from the end side exhaust port 162 without introducing into the inside.

<Effect of Embodiment 2>

In the gas seal structure 30 according to the second embodiment, the gas located in the space 67 of the transport unit labyrinth seal 60 is exhausted from the space 67 toward the outside of the drying chamber 11 . Since it has the structure 150 , it is possible to suppress gas outside the drying chamber 11 from entering the drying chamber 11 . Accordingly, not only can the gas leak in the drying chamber 11 be suppressed, but also the gas outside the drying chamber 11 can be easily suppressed from entering the drying chamber 11 . As a result, the sealing property can be ensured more reliably and easily.

In addition, in the drying chamber 11, since the temperature tends to decrease due to heat of vaporization when the solvent 7 evaporates, when external air with a large amount of moisture enters the drying chamber 11, the moisture in the air is removed from the solvent. It is cooled by the heat of vaporization when (7) is vaporized, and it becomes easy to freeze in the drying chamber (11). For this reason, when the extraction and drying apparatus 1 is used in an environment where it is difficult to control the air conditioning of the outside air, when the outside air that has not been managed enters the drying room 11, the moisture in the air may be frozen in the drying room 11. There are concerns. In contrast, in the second embodiment, since the gas outside the drying chamber 11 can be suppressed from entering the drying chamber 11, even when the extraction and drying apparatus 1 is used in an environment in which external air management is not performed, It is possible to suppress entry of outside air having a large amount of moisture into the drying chamber 11 . As a result, freezing of moisture in the drying chamber 11 can be suppressed.

[Variation]

In addition, in Embodiment 1 and 2 mentioned above, although the gas-seal structure 30 is arrange|positioned at the side which sends out the sheet-like member S in the extraction and drying apparatus 1, the gas-seal structure 30 is extracted You may arrange|position on the carrying-in side of the sheet-like member S in the drying apparatus 1 . That is, the gas seal structure 30 may be arrange|positioned at the inlet side of the sheet-like member S in the extraction apparatus 5 which the extraction and drying apparatus 1 has.

In addition, in Embodiment 1 and 2 mentioned above, although the gas-seal structure 30 is arrange|positioned in the extraction-drying apparatus 1, even if the apparatus in which the gas-seal structure 30 is arrange|positioned is other than the extraction-drying apparatus 1, do. As long as it is an apparatus which ensures the sealing property at the time of conveying the sheet-like member S, the apparatus to which the gas-sealing structure 30 is applied is not questioned.

1: Extraction drying device
5: Extraction device
6: solvent manufacturing
7: solvent
10: drying device
11: Drying room (processing room)
15: bulkhead
16: opening
21: supply air duct
22: exhaust duct
25: air knife
26: roll
30: gas seal structure
31: frame
32: stay
33: support plate
35: bearing part
36: jack structure
40: seal roll
41: outer circumference
45: shaft end
50: conveyance part cover body
51: conveyance part upper cover body
52: transport unit lower cover body
53: casing
60: transfer part labyrinth seal
61: upper conveyance part labyrinth seal
62: lower conveyance part labyrinth seal
63: partition plate
64: spacer
65: retaining bolt
66: installation member
67: space part
70: stroke structure
71: air cylinder
72: body part
73: load
80: holding
81: support member
82: guide block
85: bracket
86: cancer
86a: narrow part
86b: step part
87: stopper
90: end cover body
91: If you give me
92: outer circumference
95: roll end labyrinth seal
96: home
97: space part
98: obturator
100: partition body
101: bracket
102: conveyance part side wall part
103: end side wall portion
104: partition body opening
110: no seal
111: conveyance part cover body side sealing member
112: End cover body side sealing member
114: sealing member for the cover body partition body
116: partition body outer sealing member
117: partition body inner sealing member
118: partition bracket seal member
S: sheet-like member

Claims (7)

a seal roll that partitions a processing chamber and is disposed on a surface side opposite to the processing chamber side surface in a partition wall having an opening through which a sheet-like member passes;
at a position opposite to the outer circumferential surface of the seal roll, and at a position where the sheet-like member conveyed from the opening can pass between the seal roll and the seal roll, and arranged in the conveying direction of the sheet-like member, the seal a conveyance part labyrinth seal having a plurality of space parts in which the roll side is opened;
Exhaust duct which makes the inside of the said process chamber a negative pressure with respect to the side where the said seal roll is arrange|positioned
A gas seal structure comprising a. a seal roll that partitions a processing chamber and is disposed on a surface side opposite to the processing chamber side surface in a partition wall having an opening through which a sheet-like member passes;
at a position opposite to the outer circumferential surface of the seal roll, and at a position where the sheet-like member conveyed from the opening can pass between the seal roll and the seal roll, and arranged in the conveying direction of the sheet-like member, the seal a conveyance part labyrinth seal having a plurality of space parts in which the roll side is opened;
An exhaust structure for exhausting the gas located in the space from the space toward the outside of the processing chamber
A gas seal structure comprising a. 3. The method of claim 1 or 2,
The conveyance part labyrinth seal is held by the conveyance part cover body,
End caps covering a predetermined range in the circumferential direction of the seal roll are disposed on both sides of a position where the transport section cover body is disposed in the extension direction of the seal roll;
A partition body is disposed between the opening part and the transport part cover body and the end part lid body to define a space communicating the opening part and a position between the outer peripheral surface of the seal roll and the transport part labyrinth seal. seal structure. 4. The method of claim 3,
A roll end labyrinth seal having a plurality of space portions arranged in an extension direction of the seal roll and having an opening on the seal roll side is formed in the end cover body. 5. The method according to claim 3 or 4,
The conveyance part cover body can change the distance from the said outer peripheral surface of the said seal roll, The gas seal structure. 6. The method of claim 5,
The conveyance part cover body and the end cover body are in contact with each other in a state where the position of the conveyance part labyrinth seal is the position of the conveyed state of the sheet-like member, and the conveyance part labyrinth seal is applied to the seal roll. Sealing members spaced apart from each other are arranged in a state spaced apart from the outer circumferential surface, respectively,
The gas seal structure, wherein the sealing members are formed in a wedge-shaped shape in which contact surfaces of each other are inclined with respect to the moving direction of the carrying unit cover body. an extraction device for extracting the liquid plasticizer using a solvent from a sheet-like member obtained by molding a resin material and a liquid plasticizer after melt-kneading;
a drying device for removing the solvent adhering to the sheet-like member by drying the sheet-like member;
a seal roll partitioning a drying chamber of the drying apparatus and disposed on a surface side opposite to the drying chamber-side surface in a partition wall having an opening through which the sheet-like member passes;
at a position opposite to the outer circumferential surface of the seal roll, and at a position where the sheet-like member conveyed from the opening can pass between the seal roll and the seal roll, and arranged in the conveying direction of the sheet-like member, the seal a conveyance part labyrinth seal having a plurality of space parts in which the roll side is opened;
Exhaust duct which makes the inside of the said drying chamber a negative pressure with respect to the side where the said seal roll is arrange|positioned
Extraction drying apparatus comprising a.

Images