WO2024019146A1

WO2024019146A1 - Device for forming foldable food product, and method for molding foldable food product

Info

Publication number: WO2024019146A1
Application number: PCT/JP2023/026770
Authority: WO
Inventors: 友邦阿久津; 文明小林
Original assignee: レオン自動機株式会社
Priority date: 2022-07-22
Filing date: 2023-07-21
Publication date: 2024-01-25

Abstract

A device (1) for forming a foldable food product (P) in which a flat outer shell ingredient (D) is folded and an inner ingredient (F) is wrapped up, the device (1) having: a pair of molding rollers (66U, 66D); and an end-part-pressing member (59) that is disposed above the pair of molding rollers, the end-part-pressing member being capable of being raised and lowered. The end-part-pressing member can be lowered such that end parts (DB) on both sides of a central part (DC) of the outer shell ingredient are pressed between the pair of molding rollers to form a folded portion in the outer shell ingredient. After the folded part is formed in the outer shell ingredient and the end-part-pressing member is raised, the pair of molding rollers can approach each other such that the folded part in the outer shell ingredient is compressed.

Description

Device for forming folded food and method for forming folded food

The present invention relates to an apparatus and method for folding a flat outer skin material, which is food dough, to form a folded food that encloses an inner material placed on the outer skin material. The present invention relates to an apparatus and method for forming folded foods by rotation.

Patent Document 1 discloses a rice peel mounting plate provided with an opening through which the rice skin can be pushed and inserted, a piston for filling ingredients that pushes the rice skin into the opening and fills the rice skin with ingredients, and a Disclosed is a gyoza forming apparatus that includes a pair of forming rolls provided with forming recesses at corresponding positions for forming the filling inner packaging portion of the gyoza. As the pair of forming rolls rotate inward synchronously, the noodle skins on the forming rolls are folded in half, wrapping around the ingredients, and the gyoza ears are pressed together in the gap between the opposing forming rolls, forming the gyoza.

Patent Document 2 discloses a pair of rotating bodies each having a mounting portion formed on the side surface for placing a plate-shaped food dough thereon, and a dough feeding device disposed above the rotating bodies for supplying the food dough to the rotating bodies. Discloses a food manufacturing device including: As the pair of rotating bodies rotate inward in synchronization, the food dough placed across the rotating bodies is folded in half, enveloping the contents, and the food dough is sandwiched between the opposing rotating bodies, so that the contents are Food products encapsulated in food dough are produced. Further, the dough supply device is configured to stretch the food dough in a direction almost perpendicular to its thickness before placing the food dough on the placing section. The food manufacturing device rotates a rotating body to manufacture food before the stretched food dough is completely shrunk. According to the food manufacturing apparatus, it is possible to impart tension to the surface of the food dough, and it is possible to manufacture food with firm texture.

Patent Document 3 discloses a receiving member having an opening and on which a sheet-like outer skin material is placed, and a portion of the outer skin material disposed in the opening that is moved downward from the opening to fold the outer skin material in half. a sealing means for sealing the edges of the skin material that is placed below the receiving member and is folded in half; and a sealing device that is placed above the receiving member and seals the edge of the skin material that is folded in half. and a sealing means for sealing the upper edge of the food product forming apparatus. Further, the outer skin material forming means includes a pushing means for pushing the outer skin material into the opening, and the pushing means has a pair of pushing bars attached to both sides thereof, and is equipped with an inner material supplying means. The food forming apparatus also includes retaining means for retaining the edge of the skin material on the receiving member.

In the food forming apparatus, the outer shell material is held at both ends on the receiving member by the holding means, the center part of the outer skin material is pushed into the opening by the pushing means, and the edge of the outer skin material is pushed by the pushing bar. is pushed in and folded in half. Furthermore, the inner material is supplied to the inside of the outer skin material by the inner material supply means, and after the pushing means is raised, the edge of the outer skin material folded in half is pressed from both sides by the sealing means and the sealing means. is formed.

Patent Document 4 discloses a flat outer skin material placed thereon, which is made up of a pair of wrapping plates, has an opening in the center, and folds and overlaps the peripheral edge of the outer skin material so as to wrap an inner material placed on the outer skin material. A wrapping unit to be sealed, a pressing member that is movable up and down with respect to the wrapping unit and presses the peripheral edge of the outer skin material against the wrapping unit, and a holding member that presses a part of the outer skin material located above the opening downward from the opening. A bowl-shaped forming device that forms the stretched outer skin material into a bowl shape; and a bowl-shaped forming device that is disposed above the wrapping unit and is movable up and down with respect to the wrapping unit, and that aligns the outer skin material at a required position with respect to the wrapping unit. A folded food forming apparatus is disclosed that includes a positioning device and a control device that separately drives and controls the raising and lowering operations of the positioning device and the pressing member. Further, the forming device includes an extension device that extends the peripheral edges of both ends of the outer skin material downward between the pair of wrapping plates. Further, the molding device includes a reciprocating mechanism that moves the pair of enveloping plywood toward and away from each other.

By the forming device, the outer skin material with the inner material placed on the upper surface is aligned on the pair of envelope plates by the alignment member of the alignment device, and its outer shape is shaped. Thereafter, the outer skin material is formed into a bowl shape by the bowl-shaped forming device while the pressing member presses the peripheral edge of the outer skin material against the wrapping plate. Further, the pair of extension members of the extension device descend between the pair of envelope plates separated from each other to a set position, thereby stretching the peripheral edge of the outer skin material downward. Then, after the positioning member, the pressing member, and the extension member are raised, the pair of enveloping plates approach each other, so that the peripheral edges of the outer skin material located between the enveloping plates are pinched and sealed. Finally, by swinging the pair of packaging plates closed, the peripheral edges of the skin material are folded and overlapped, forming a folded food product with the peripheral edges sealed.

Japanese Patent Application Publication No. 11-089546 Japanese Patent Application Publication No. 2008-099566 Japanese Patent Application Publication No. 2004-329177 JP 2021-194008 Publication

It has been found that in the device described in Patent Document 1, the placement position of the rice peel relative to the pair of forming rollers is not stable, and the outer skin material cannot be folded in half at the desired position. Furthermore, it was found that when the pair of forming rollers rotated inwardly in synchronization, the outer skin material slipped on the pair of forming rollers, causing the shape of the folded food to become unstable.

Therefore, an object of the present invention is to provide a new molding device and a molding method that can stably mold folded foods without causing the outer skin material to shift from a desired position relative to the molding roller.

In order to achieve this object, there is provided a folded food forming apparatus including a folding device for folding a flat outer skin material and wrapping the inner material, the folding device comprising a pressing device, a pushing device, and a pressing device. a wrapping device disposed below, and the pushing device is movable up and down with respect to the wrapping device, and the pushing device wraps both peripheral edges of the outer skin material placed on the wrapping device. The packaging device has two end pushing members for pushing into the device, and the packaging device includes a placement unit and a packaging unit disposed below the placement unit, and the packaging unit is arranged opposite to the packaging unit. The forming roller includes two forming rollers arranged in a manner that the forming roller has a recess, the two forming rollers are configured to be rotatable oppositely to each other, and the end pushing member is arranged in the recess of the forming roller. placed on both sides.

For example, the two forming rollers of the wrapping unit are configured to be able to approach and separate from each other.

For example, the placement unit includes two placement members that are arranged to face each other and can approach and separate from each other, and the holding device includes two holding members that respectively correspond to the placement members, and the holding device includes two holding members that respectively correspond to the placement members, and The members can be moved up and down relative to the mounting member, and are configured to be able to approach and separate from each other.

For example, the lowered reaching position of the end pushing member is between the opposing forming rollers, and is at the same height as, or above, the axial center of the forming roller.

For example, the pushing device includes a center pushing member for pushing the inner material into the center of the outer skin material, and the center pushing member is configured to be movable up and down with respect to the placement member.

For example, the forming roller is controlled so that the phase of the recessed portion when rotation is stopped is adjustable.

In addition, in order to achieve this purpose, there is provided a method for forming a folded food product in which a flat outer skin material is folded to wrap an inner material, the method comprising: (a) placing an outer skin material on two mounting members disposed facing each other; transferring from the supply conveyor; (b) lowering the two pressing members to press the peripheral edges of the outer skin material against the mounting member; (d) lowering the end pushing member to (f) pushing the peripheral edges of both sides of the skin material downward from between the placement members and extending them between the opposing forming rollers; (f) by raising the end pushing members and bringing the forming rollers closer to each other; compressing the folded portion of the peripheral edge; (g) rotating the opposing forming rollers inwardly to compress the inner surface of the outer skin material on which the inner material is placed on the inner surface of the recess formed in the forming roller; and sealing opposing peripheral edges of the outer skin material between opposing side surfaces around the recess.

For example, between the step (b) and the step (d), (c) the step of stretching the outer skin material by separating the opposing pressing members from each other and separating the opposing mounting members from each other. including.

For example, in the step (c), after stretching the outer skin material, the method includes a step of causing the opposing pressing members to approach each other and also causing the opposing mounting members to approach each other.

For example, in the step (a), an inner material is placed on the outer skin material, and between the step (d) and the step (f), (e) the central part pushing member is lowered. The method includes a step of extending a central portion of the outer skin material downward through the inner material.

According to the present invention, it is possible to stably form a folded food product without the outer skin material shifting from a desired position relative to the forming rollers arranged to face each other.

1 is a front view schematically showing a folded food product forming apparatus according to a first embodiment of the present invention. 1 is a plan view schematically showing a folded food product forming apparatus according to a first embodiment of the present invention. FIG. 2 is a perspective view schematically showing main parts of a pressing device and a pushing device included in the folded food product forming apparatus according to the first embodiment of the present invention. 1 is a perspective view schematically showing a main part of a packaging device included in a folded food product forming device according to a first embodiment of the present invention. FIG. 3 is an enlarged view of the central part pushing member, the end part pushing member, and the outer skin material. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 2 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. FIG. 1 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a first embodiment of the present invention. 1 is a perspective view schematically showing a folded food product formed by a folded food product forming apparatus according to an embodiment of the present invention. 1 is a perspective view schematically showing a folded food product formed by a folded food product forming apparatus according to an embodiment of the present invention. 1 is a perspective view schematically showing a folded food product formed by a folded food product forming apparatus according to an embodiment of the present invention. FIG. 2 is a front view schematically showing a folded food product forming apparatus according to a second embodiment of the present invention. FIG. 2 is a plan view schematically showing a folded food product forming apparatus according to a second embodiment of the present invention. FIG. 7 is a perspective view schematically showing main parts of a pressing device and a pushing device included in a folded food forming apparatus according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a second embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a front view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a forming process by a folding device included in a folded food forming device according to a third embodiment of the present invention.

A forming apparatus 1 for folded food products according to a first embodiment of the present invention will be described with reference to the drawings. The forming device 1 is configured to form a folded food product P by folding a flat outer skin material D so as to wrap around an inner material F. The flat skin material D is obtained, for example, by adjusting a rolled ball of dough DD and then rolling it out. For example, the outer skin material D is sweet bread dough, the inner material F is cream, and the folded food product P is cream bread.

As shown in FIGS. 1 to 4A, the molding device 1 roughly includes a base 1A, a supply conveyor 2, a folding device 3, an output conveyor 8, and a control device 9. The supply conveyor 2, the folding device 3, the carry-out conveyor 8, and the control device 9 are attached to the base 1A. The control device 9 is configured to control the operation of the supply conveyor 2 , the folding device 3 and the output conveyor 8 . Hereinafter, the conveying direction of the skin material D will be referred to as "X," the width direction of the supply conveyor 2 perpendicular to the conveying direction X will be referred to as "Y," and the longitudinal direction will be referred to as "Z." Further, in the width direction Y, the right side in the conveyance direction is referred to as the "back" side or the "rear" side, and the left side in the conveyance direction is referred to as the "front" side. As shown in FIG. 4B, the outer skin material D includes a peripheral portion DA and a central portion DC, and the peripheral portion DA includes two peripheral edge portions DB located at both ends. A line connecting the two peripheral edge portions DB constitutes a folding line L, which is along the width direction Y in this embodiment.

As shown in FIGS. 1 and 2, the supply conveyor 2 is configured to transport the outer skin material D on which the inner material F is placed in the transport direction X and supply it to the folding device 3. The supply conveyor 2 includes a tip portion 2A and a measuring device 1B configured to sense the outer covering material D being conveyed. The distal end portion 2A is extendable and retractable in the transport direction X, that is, can reciprocate along the transport direction X between an advance position on the downstream side and a standby position on the upstream side. The measuring device 1B is attached to the tip portion 2A of the supply conveyor 2. The measuring device 1B is, for example, a photoelectric sensor 1B.

The folding device 3 includes a wrapping device 6, a pressing device 4 and a pushing device 5 arranged above the wrapping device 6, and a support device 7 arranged below the wrapping device 6. Details of these

devices

4, 5, 6, and 7 will be explained later. In this embodiment, a plurality of skin materials D are supplied by the supply conveyor 2 at predetermined intervals along the conveyance direction It is configured to simultaneously form the outer skin material D2) into two folded foods P (see FIG. 1).

The carry-out conveyor 8 is a belt conveyor connected to the downstream side of the support device 7, and is configured to receive the folded food product P from the support device 7 and carry it out to the downstream side. A contact member (not shown) such as a roller may be arranged above the carry-out conveyor 8 in order to convey the folded food P in a horizontally laid state.

Hereinafter, each device of the folding device 3 will be explained in detail.

The wrapping device 6 folds the outer skin material D (see FIG. 9A) pushed downward by the pushing device 5, which will be described later, into two, aligns the half-arc-shaped peripheral edges DA on both sides of the outer skin material D, and folds the inner material F into two. is constructed so as to be wrapped in an outer skin material D. As shown in FIG. 4A, the wrapping device 6 has two placement units 61 (upstream side placement unit 61U and downstream side placement unit 61D) corresponding to the two outer covering materials D1 and D2 and two packaging units 61 (upstream side placement unit 61U and downstream side placement unit 61D). It includes a combining unit 65 (an upstream combining unit 65U and a downstream combining unit 65D). The packaging unit 65 is arranged below the mounting unit 61.

Each of the mounting

units

61U and 61D includes a pair of mounting members 62 (an upstream mounting member 62U and a downstream mounting member 62D) that are flat and facing each other. The pair of

placement members

62U and 62D are arranged side by side in the conveyance direction (See FIG. 9A). Further, the pair of mounting

members

62U and 62D are slidable in the conveyance direction X so that they can move away from the approach position to the separation position or return from the separation position to the approach position. Each of the pair of mounting

members

62U, 62D has a recess 62A provided in the center of the side surface facing the other mounting

member

62D, 62U. Thereby, the recessed portions 62A of the pair of mounting

members

62U and 62D together form an opening 62H in the center of the pair of mounting members 62 through which the central portion DC of the outer covering material D can pass.

Each of the

packaging units

65U and 65D includes a pair of forming rollers 66 (an upstream forming roller 66U and a downstream forming roller 66D). Each of the pair of forming

rollers

66U and 66D has a cylindrical main body 66A extending in the longitudinal direction (width direction Y) and a rotating shaft 66B disposed at both ends thereof. The pair of forming

rollers

66U and 66D can rotate synchronously between them in a direction in which the outer skin material D is sent out from top to bottom (inward). That is, in a front view, the upstream forming roller 66U rotates counterclockwise (leftward), and the downstream forming roller 66D rotates clockwise (clockwise). Further, the pair of forming

rollers

66U and 66D are arranged at separated positions in the conveying direction X so as to receive an end pushing member 59 (described later) (see FIG. 9A). Further, the pair of forming

rollers

66U and 66D are slidable in the transport direction X so that they can approach the approach position from the separation position or return from the approach position to the separation position.

Each of the main bodies 66A of the pair of forming

rollers

66U and 66D has a recess 66C provided in the longitudinal center thereof so as to face the main body 66A of the other forming

roller

66D and 66U at a predetermined rotational position, and a cylindrical recess 66C. It has a side surface (peripheral surface) (see FIG. 9B). The shapes of the recesses 66C of the pair of forming

rollers

66U and 66D are generally symmetrical. The recesses 66C of the forming

rollers

66U and 66D together constitute a through hole 66H through which the central portion DC of the outer covering material D can pass. The shape of the through hole 66H changes according to rotation. As shown in FIG. 8B, in the longitudinal cross-section of the central portion of the main body 66A in the longitudinal direction, the upper boundary point and the lower boundary point between the recess 66C and the side surface are referred to as an upper end 66CA and a lower end 66CB, respectively. In this embodiment, the angle formed by the upper end 66CA and the lower end 66CB with respect to the center of the main body 66A is approximately 150 degrees.

The packaging device 6 further includes a base housing 6A, a drive mechanism 63 for the two placement units 61, a reciprocating mechanism 67 that reciprocates the forming rollers 66 of the two packaging units 65 in the conveying direction It includes a rotation mechanism 68 that rotates the roller 66.

The drive mechanism 63 of the two placement units 61 includes a pair of first guide members 63A and a pair of second guide members 63B that guide two pairs (four) of placement members 62 in the transport direction X. , a pair of upper connection plates 63C, a pair of lower connection plates 63D, two connection brackets 63E, and two actuators 63F. The actuator 63F is, for example, a pneumatic cylinder.

A pair of first guide members 63A and a pair of second guide members 63B extending in the longitudinal direction are arranged so as to face each other in the width direction Y and along the transport direction X. The first guide member 63A is configured to slidably guide the three mounting members 62 arranged on the upstream side among the four mounting members 62 in the transport direction X. The second guide member 63B is configured to slidably guide the remaining mounting member 62 disposed on the most downstream side in the transport direction X.

The upstream mounting members 62U of the two mounting units 61 are connected to each other from above by a pair of upper connecting plates 63C arranged near the inside of the pair of first guide members 63A. Further, the upstream mounting member 62U of the upstream mounting unit 61U is connected to a rod of an actuator 63F attached to the upstream side of the base housing 6A via a connecting bracket 63E. Thus, the upstream mounting members 62U of the two mounting units 61 are configured to slide together. Further, the mounting member 62D on the downstream side of the two mounting units 61 is placed under the pair of mounting members 62D near the inner side of the pair of first guide members 63A and near the inner side of the pair of second guide members 63B. They are connected to each other from below by a side connection plate 63D. Further, the downstream mounting member 62D of the downstream mounting unit 61D is connected to a rod of an actuator 63F attached to the downstream side of the base housing 6A via a connecting bracket 63E. Thus, the mounting members 62D on the downstream side of the two mounting units 61 are configured to slide together. As a result, the pair of mounting

members

62U and 62D of each of the two mounting units 61 can be moved away from each other from the approach position to the separation position by synchronizing and reciprocating the two actuators 63F. It is configured to approach the approach position from the ground.

The reciprocating mechanism 67 of the two pairs (four) forming rollers 66 of the two wrapping units 65 is arranged to face each other in the width direction Y and has four pairs of slide plates corresponding to the four forming rollers 66, i.e. , a pair of first slide plates 67A, a pair of second slide plates 67B, a pair of third slide plates 67C, and a pair of fourth slide plates 67D. Rotating shafts 66B on both sides of the four forming rollers 66 are rotatably attached to slide

plates

67A, 67B, 67C, and 67D via bearings.

Further, the reciprocating mechanism 67 includes a pair of upstream connecting plates 67E, a pair of downstream connecting plates 67F, a pair of linear guide mechanisms 67G, and a drive mechanism (not shown). A pair of linear motion guide mechanisms 67G extending in the longitudinal direction are arranged along the transport direction X and are attached to the base housing 6A so as to face each other in the width direction Y. Each of the pair of linear guide mechanisms 67G has one guide rail 67GA and four movable platforms 67GB that are movable while being guided by the guide rail 67GA. The four movable platforms 67GB are each attached to a first slide plate 67A, a second slide plate 67B, a third slide plate 67C, and a fourth slide plate 67D in order from the upstream side.

The pair of first slide plates 67A and the pair of third slide plates 67C are connected to each other by a pair of upstream connecting plates 67E. Furthermore, the pair of second slide plates 67B and the pair of fourth slide plates 67D are connected to each other by a pair of downstream connecting plates 67F. A drive mechanism (not shown) is arranged inside the base housing 6A on the rear side of the two packaging units 65 (65U, 65D), and moves the second slide plate 67B and the third slide plate 67C in the transport direction They are constructed so that they approach and move away from each other along the lines.

As a result, the pair of forming

rollers

66U, 66D of each of the two packaging units 65 (65U, 65D) are controlled by operating the drive mechanism (not shown) of the reciprocating mechanism 67 using the control device 9. , are configured to move toward and away from each other in synchronization.

The rotation mechanism 68 of the two pairs (four) forming rollers 66 of the two wrapping units 65 includes four toothed pulleys 68A attached to the rotation shaft 66B on the rear side of the four forming rollers 66 (66U, 66D). , two toothed belts 68B, and two drive motors 68C with reduction gears. One toothed belt 68B is wound around the toothed pulley 68A of the forming roller 66U on the upstream side of the two wrapping units 65, and the other toothed belt 68B is wound around the toothed pulley 68A of the forming roller 66U on the upstream side of the two wrapping units 65. It is wound around a toothed pulley 68A attached to a roller 66D. Further, one drive motor 68C is connected to the front rotating shaft 66B of the upstream forming roller 66U of the upstream packaging unit 65U via a power transmission mechanism, and the other drive motor 68C is connected to the downstream packaging unit 65U. It is connected to a forming roller 66D on the downstream side of the combining unit 65D via a power transmission mechanism.

As a result, the pair of forming

rollers

66U, 66D of each of the two packaging units 65 (65U, 65D) are controlled by synchronously operating the two drive motors 68C of the rotation mechanism 68 using the control device 9. , a pair of forming rollers 66 (66U, 66D) are configured to rotate synchronously and in opposite directions.

The support device 7 is arranged below the folding device 3 (wrapping device 6), and is configured to support the folded food product P formed by the folding device 3 and convey it to the carry-out conveyor 8. Specifically, the support device 7 includes two liftable conveyors 7A (an upstream conveyor 7AU and a downstream conveyor 7A) corresponding to the two packaging units 65 (65U, 65D) to support the two folded foods P. It includes a side conveyor 7AD) and a transfer conveyor 7B arranged between two liftable conveyors 7A (7AU, 7AD). The elevating positions and elevating speeds of the two elevating conveyors 7A, and the drive timing and drive speed of the elevating conveyors 7A and transport conveyor 7B can be adjusted by control of the control device 9.

Next, the holding device 4 will be explained. The pressing device 4 is configured to press the peripheral edge DA of the outer covering material D against the wrapping device 6. As shown in FIG. 3, the presser device 4 includes an elevating mechanism (not shown) disposed inside the base 1A, an elevating base 4A attached to the elevating mechanism, and two devices attached to the elevating base 4A. It includes two pressing units 41 (an upstream pressing unit 41U and a downstream pressing unit 41D) corresponding to the outer skin materials D1 and D2. The elevating base 4A has a front surface and a back surface opposite to the front surface, and is configured to be raised and lowered relative to the base 1A by an elevating mechanism (not shown). The two holding

units

41U and 41D are arranged above the two mounting

units

61U and 61D and the

wrapping units

65U and 65D of the wrapping device 6, respectively.

The two holding

units

41U and 41D each include an actuator 43 that operates in the vertical direction Z, a double-rod actuator 44 that operates in the transport direction and a downstream pressing member 42D). Actuator 43 and actuator 44 include, for example, pneumatic cylinders.

The actuator 43 is attached to the back surface of the lifting base 4A, and includes a rod configured to reciprocate in the vertical direction Z, and a plate 43A attached to the lower end of the rod. The actuator 43 of the upstream presser unit 41U and the actuator 43 of the downstream presser unit 41D are arranged along the transport direction X and parallel to each other.

The actuator 44 is attached to a plate 43A, and includes two rods configured to reciprocate along the conveyance direction X, a pair of plates 44A attached to the tips of the two rods, and a pair of It includes a pair of substantially rectangular brackets 45 respectively attached to plates 44A of. The pair of brackets 45 extend in the width direction Y perpendicular to the transport direction X from the back side of the lifting base 4A beyond the front side.

The pair of holding

members

42U and 42D are each attached to a pair of brackets 45. The pair of pressing

members

42U and 42D are spaced apart so that an end pushing member 59, which will be described later, can pass therethrough (see FIG. 9A). Each of the holding

members

42U and 42D has a recess 42A provided in the center of the side surface facing the other holding

member

42D and 42U. Thereby, the recesses 42A of the pair of pressing members 42 together constitute an opening 42H. The

pressing members

42U and 42D are configured to press the peripheral edge DA of the outer covering material D against the pair of

placement members

62U and 62D of the packaging device 6, respectively, by the operation of the actuator 43 (see FIG. 4B). Further, the pair of pressing

members

42U and 42D are movable toward and away from each other in the transport direction X by the reciprocating movement of the actuator 44 controlled by the control device 9.

The pressure of the compressed air supplied to the actuator 43 is always low, for example, 0.05 MPa. Thereby, the rod of the actuator 43 is configured to be constantly operated, that is, urged, in the direction of advancing downward from the cylinder. On the other hand, when the lifting base 4A of the holding device 4 is lowered to lower the holding device 4 from the upper standby position (see FIG. When it comes into contact with D, the rod of the actuator 43 retreats into the cylinder due to the resistance received from the outer covering material D since the compressed air is at a low pressure. As a result, the pressing member 42 is configured to lightly press the outer skin material D against the mounting member 62.

Next, the pushing device 5 will be explained. The entire pushing device 5 is configured to move up and down together with the lifting base 4A of the holding device 4. Specifically, the pushing device 5 includes an actuator 5A attached to the front surface of the lifting base 4A, two first pushing units 51 attached to the actuator 5A and corresponding to the two skin materials D, and the front surface of the lifting base 4A. It includes two second pushing units 57 attached to and corresponding to the two outer covering materials D.

The actuator 5A has a rod that reciprocates in the vertical direction Z and a holding bracket 5B attached to the upper end of the rod. For example, actuator 5A is a pneumatic cylinder.

Each of the first pushing units 51 includes an upper connecting tube 52 that is removably fixed to the holding bracket 5B and has a socket on the lower end side, a sliding tube 53 that has a plug on the upper end side that is removably attached to the socket, and a sliding tube. It has a central pushing member 54 that is replaceably attached to the lower end of the holder 53 . The assembled first pushing unit 51 is configured such that compressed air can be discharged from the lower surface of the central pushing member 54.

The second pushing unit 57 includes a holding bracket 55 attached to the front surface of the lifting base 4A and extending in the width direction Y, a sliding bearing 56 detachably fixed to the holding bracket 55, and a sliding bearing 56 attached to the lower surface of the sliding bearing 56. It also includes a bracket 58 extending in the width direction Y (longitudinal direction), and a pair of plate-shaped end pushing members 59 attached to both ends of the bracket 58 and extending downward.

The sliding tube 53 of the first pushing unit 51 is slidably attached to a sliding bearing 56, so that the two end pushing members 59 move along the width direction Y so as to sandwich the central pushing member 54. It is located. Further, the two end pushing members 59 and the center pushing member 54 are arranged between the

pressing members

42U and 42D.

The pushing device 5 is configured to push the outer covering material D pressed by the pressing device 4 toward the wrapping device 6. Specifically, when the holding device 4 is lowered from the upper standby position, the second pushing unit 57 (two end pushing members 59) attached to the lifting base 4A of the holding device 4 moves the holding device 4 (outer skin material D It is configured to descend integrally with the holding member 42) until it comes into contact with the holding member 42). Further, the second pushing unit 57 (two end pushing members 59) is further moved after the pressing unit 41 (pressing member 42) comes into contact with the outer skin material D on the packaging device 6 (placing member 62). It is possible to descend. Thereby, the second pushing unit 57 (the two end pushing members 59) is configured to push the peripheral edge portions DB on both sides of the peripheral edge portion DA of the outer skin material D downward. Further, the first pushing unit 51 (center pushing member 54) is located above the second pushing unit 57 (two end pushing members 59), and is operated by actuating the actuator 5A. It is configured to be able to move up and down relative to the member 42). As a result, while the second pushing unit 57 (two end pushing members 59) is pushing the peripheral end DB of the outer skin material D, the first pushing unit 51 (center pushing member 54) presses the inner material F. After that, the center part DC of the outer skin material D is pushed downward together with the inner material F (via the inner material F). The control device 9 is configured to drive the pressing device 4 and the first pushing unit 51 separately.

Next, the operation of the folding food product P forming apparatus 1 according to the first embodiment of the present invention will be described with reference to FIGS. 5A to 13C.

The pressing device 4, pushing device 5, and wrapping device 6 are placed on standby at their initial positions. Specifically, the lifting base 4A is raised to the standby position, and the pressing device 4 (a pair of pressing members 42) and the pushing device 5 (the two end pushing members 59 and the center pushing member 54) are moved to the packaging device 6. Move it upward and away from it. Further, the actuator 5A of the pushing device 5 is operated to move the central pushing member 54 upward away from the packaging device 6. Since the actuator 43 of the holding device 4 is always operated downward, the pair of holding

members

42U and 42D of the holding device 4 are urged downward. Therefore, the height of the pair of pressing

members

42U and 42D is lower than the height of the two end pushing members 59. Further, the heights of the two end pushing members 59 are lower than the height of the central pushing member 54 (see FIGS. 4B and 5A).

Further, by operating the actuator 44 of the holding device 4 and the drive mechanism 63 of the placing unit 61, the pair of holding

members

42U, 42D of the holding device 4 and the pair of placing

members

62U, 62D of the packaging device 6 are activated. to be placed in a close position (state). Further, by operating the reciprocating mechanism 67 of the wrapping unit 65, the pair of forming

rollers

66U and 66D of the wrapping unit 65 are placed in the separated position (state). Further, by operating the rotation mechanism 68 of the wrapping unit 65, the pair of forming

rollers

66U and 66D are placed in a position (state) in which their respective recesses 66C face opposite to each other (outside). That is, the pair of forming

rollers

66U and 66D are rotated in the center of each main body 66A to a position where the cylindrical side surfaces face each other (see FIG. 5B).

The tip end 2A of the supply conveyor 2 is placed at a standby position where it is contracted toward the upstream side of the reciprocating range in the conveyance direction X. A required amount of the inner material F is placed on the outer skin material D, a plurality of outer skin materials D are placed on the conveyance surface of the supply conveyor 2 at intervals in the conveyance direction 2.

When the sensor 1B senses the outer skin material D1 on the downstream side during conveyance, the tip portion 2A is stopped at the advanced position where it is extended (moved) toward the downstream side in the conveyance direction X, and the mounting unit 61 (61U, 61D) is covered by the tip 2A of the supply conveyor 2. Next, the downstream outer skin material D1 is stopped at a position where its center coincides with the center of the opening 62H of the pair of mounting

members

62U and 62D of the downstream mounting unit 61D in plan view (see FIG. 1). , the conveyance of the skin material D by the supply conveyor 2 is stopped. The tip portion 2A is shrunk (retracted) at once, and the outer skin material D1 on the downstream side is dropped from the tip portion 2A onto the pair of

placement members

62U and 62D of the downstream placement unit 61D (transfer). ).

Subsequently, the conveyance of the skin material D by the supply conveyor 2 is restarted. The upstream skin material D2 is stopped at a position where its center coincides with the center of the opening 62H of the pair of

placement members

62U and 62D of the upstream placement unit 61U in plan view, and the skin material D2 is removed by the supply conveyor 2. Transport of D is interrupted. The tip portion 2A is shrunk (retracted) at once, and the upstream outer skin material D2 is dropped from the tip portion 2A onto the pair of

placement members

62U and 62D of the upstream placement unit 61U (transfer). ). Next, the tip portion 2A is retracted (retracted) to the standby position.

Hereinafter, since the processes for the two outer skin materials D1 and D2 are the same, only one of the outer skin materials will be explained. Due to the weight and fall of the inner material F, the central portion DC of the outer skin material D transferred onto the pair of mounting

members

62U and 62D enters into the opening 62H (opposing recess 62A) and becomes depressed ( mounting process, see FIGS. 5A and 5B). When the central portion DC of the outer skin material D is greatly depressed, it is received by the cylindrical side surfaces of the pair of forming rollers 66 (66U, 66D), and thereby the outer skin material D is placed on the mounting unit 61 (61D, 61U). ) to prevent it from falling.

After the tip portion 2A is retracted to the standby position (upstream end), the elevating base 4A is moved downward, and the holding device 4 and the pushing device 5 are lowered. By bringing the pair of pressing members 42 of the pressing device 4 into contact with the upper surface of the peripheral edge DA of the outer covering material D, the outer covering material D is pressed toward the pair of mounting members 62. The lifting base 4A is further moved downward, and a portion of the rod of the actuator 43 is retracted (retracted) into the cylinder due to the resistance received from the outer covering material D via the holding member 42. In this state, the descent of the elevating base 4A is temporarily stopped, and the peripheral edge DA of the outer covering material D is held between the pair of pressing

members

42U, 42D and the pair of mounting

members

62U, 62D (pressing down). process, see FIGS. 6A and 6B).

Next, the pair of pressing

members

42U, 42D and the pair of mounting

members

62U, 62D are simultaneously moved to the separated position (open state), and the outer skin material D is stretched in the conveyance direction X (stretching step, FIG. 7A and FIG. 7B). Specifically, by operating the double-rod type actuator 44 of the holding device 4 and operating the drive mechanism 63 of the mounting unit 61, the pair of holding

members

42U, 42D and the pair of mounting

members

62U, 62D are separated from each other. By stretching the outer skin material D, it is possible to easily arrange the inner material F inside the outer skin material D in the bowl-shaped forming step described below, and the height of the folded food product P can be increased.

Next, the pair of pressing

members

42U, 42D and the pair of mounting

members

62U, 62D are simultaneously moved to the close position (closed state) to release the stretched state of the outer skin material D. Also, a pair of forming rollers 66 (66U, 66D) are rotated in the feeding direction (in FIGS. 8A and 8B, the forming roller 66U is counterclockwise (left rotation), and the forming roller 66D is clockwise (clockwise rotation)). , the pair of forming rollers 66 (66U, 66D) are stopped at a predetermined rotational position (phase) where the recessed portion 66C forms the through hole 66H (return step, see FIGS. 8A and 8B).

In this embodiment, the upper entrance of the through hole 66H is larger than the opening 62H of the pair of mounting members 62 (62U, 62D) in the center of the pair of forming

rollers

66U, 66D, and The lower outlet is smaller than opening 62H. Preferably, the lower end 66CB of the recess 66C is located below the axis of the forming roller 66.

By moving the lifting base 4A further downward to the lowering end position and moving the pair of end pushing members 59 of the pushing device 5 downward, the lower ends of the pair of end pushing members 59 are It passes between the mounting

members

62U and 62D and reaches between the pair of forming

rollers

66U and 66D. As a result, the peripheral edge portions DB on both sides of the skin material D are pushed downward, and the position of the central portion DC of the skin material D is lowered. As a result, the top position of the inner material F is lowered. (Extension step of peripheral edge, see FIGS. 9A and 9B). The central pushing member 54 of the first pushing unit 51 is located above the inner material F.

The lower end of the end pushing member 59 reaches the position where the distance between the pair of forming

rollers

66U and 66D is the narrowest (that is, the height at which the axis of the rotating shaft 66B of the pair of forming

rollers

66U and 66D is arranged) It is preferable that it be at the same position as the above position) or slightly above it. The stretched peripheral edge portion DB is folded in half along the side surfaces of the pair of forming rollers 66 (66U, 66D).

While the elevating base 4A is stopped at the lowering end position, the actuator 5A of the pushing device 5 is operated to lower the central pushing member 54 of the first pushing unit 51. As a result, the central part pushing member 54 passes through the openings 42H of the pair of presser members 42 and the openings 62H of the pair of placement members 62, pushes down the inner material F, and pushes the central part DC of the outer skin material D. It is pushed downward and expanded inside the through hole 66H. As a result, the outer skin material D is deformed (formed) into a bowl shape through the inner material F, that is, the inner material F is placed inside the bowl-shaped outer skin material D. While the outer skin material D is deformed into a bowl shape, the outer surface (circumferential surface) of the central portion DC of the outer skin material D is pressed against a part of the inner surface of the through hole 66H. The bottom portion can swell without contacting the inner surface of the through hole 66H (see bowl-shaped forming step, inner material arrangement step, FIGS. 10A and 10B).

Next, by operating the actuator 5A to raise the central pushing member 54 of the first pushing unit 51, the central pushing member 54 is separated from the inner material F (see FIGS. 11A and 11B). Preferably, compressed air is discharged from the bottom surface of the central pushing member 54 while the first pushing unit 51 is lowered and raised. This prevents the inner material F from adhering to the center pushing member 54. The top position of the inner material F is lower than that of the outer skin material D, and the inner material F is stably arranged inside the outer skin material D.

Next, by raising the elevating base 4A, the pair of end pushing members 59 are raised, and using this as a starting point, the reciprocating mechanism 67 of the wrapping unit 65 is operated to move the pair of forming

rollers

66U, 66D approaches the approach position. The approach gap between the pair of forming

rollers

66U and 66D is such that the peripheral edge portions DB (folded portions) on both sides of the outer covering material D are sandwiched and compressed (sealed) by the pair of forming rollers 66 (66U, 66D). (see FIGS. 11A and 11B).

Next, by moving the lifting base 4A upward at once to the standby position (ascending end position), the pair of pressing members 42 of the pressing device 4, the center pushing member 54 of the pushing device 5, and the pair of end pushing members 59 at the same time. At the initial stage of raising the elevating base 4A, the actuator 43 of the holding device 4 is urged downward, so that the state in which the pair of holding members 42 are in contact with the skin material D is maintained. Thereafter, the pair of pressing members 42 are separated from the outer covering material D and moved upward.

Next, the pair of forming rollers 66 (66U, 66D) are rotated in the feeding direction (inwardly and in opposite directions). Since the peripheral edge portion DB (folded portion) of the outer skin material D is already sandwiched between the pair of forming rollers 66 (66U, 66D), the outer skin material D is held between the pair of rotating forming rollers 66 (66U, 66D). The

molding rollers

66U and 66D move downward between the pair of forming

rollers

66U and 66D. The opposing arcuate peripheral edge DA of the skin material D is gradually pinched and compressed from below to upward by the side surfaces around the recessed portion 66C of the pair of forming

rollers

66U and 66D that are close to each other, thereby compressing the arcuate peripheral edge DA. are sealed to form a sealed portion DF. Further, the inner surface of the through hole 66H forms the peripheral surface of the central portion DC of the outer skin material D that covers the inner material F. As a result, a semicircular folded food product P is formed in which the inner material F is covered with the outer skin material D (see sealing step, FIGS. 11A, 11B, 12A, and 12B).

Further, by rotating the pair of forming rollers 66 (66U, 66D) inwardly in opposite directions, the folded food product P is discharged from the two wrapping units 65 of the wrapping device 6 to the support device 7. In detail, the two elevating conveyors 7AU and 7AD are raised to the elevated position to receive the folded food P, the two elevating conveyors 7AU and 7AD are lowered to the lower end position to convey the folded food P, and the unloading device 8 (carrying out process).

Next, a forming apparatus 1 for folded food products according to a second embodiment of the present invention will be described with reference to FIGS. 14 to 24B. The molding apparatus 1 of the second embodiment is the same as the molding apparatus of the first embodiment except that the presser unit 41 of the molding apparatus 1 of the first embodiment is replaced with a presser unit 141 and an outer shape guide device 110 is added. It is the same as 1. Hereinafter, the same components as the components of the molding device 1 of the first embodiment will be given the same reference numerals as the components of the molding device 1 of the first embodiment, and their description will be omitted.

The pressing device 4 of the molding device 1 of the second embodiment is configured to make the outer shape of the outer skin material D uniform and to press the peripheral edge DA of the outer skin material D against the wrapping device 6. As shown in FIG. 16, the holding device 4 includes an elevating mechanism (not shown) disposed inside the base 1A, an elevating base 4A attached to the elevating mechanism, and two devices attached to the elevating base 4A. It includes two pressing units 141 corresponding to the outer skin materials D1 and D2.

Each of the two holding units 141 includes an actuator 43 that operates in the vertical direction Z, a double rod type actuator 44 that operates in the transport direction X, and a pair of holding members 142. Actuator 43 and actuator 44 include, for example, pneumatic cylinders.

The pair of holding members 142 are respectively attached to the pair of brackets 45. The pair of pressing members 142 are spaced apart so that the end pushing member 59 can pass therethrough and so as not to contact the inner material F (see FIG. 21A). It is preferable that the pair of pressing members 142 have a recess and an opening similar to the recess 42A and opening 62H of the pressing member 42 of the first embodiment. The pair of pressing members 142 are configured to press the peripheral edge DA of the outer covering material D against the pair of mounting members 62 (62U, 62D) of the wrapping device 6 by the operation of the actuator 43 (see FIG. 20B). ). Furthermore, the pair of pressing members 142 can be moved toward and away from each other in the transport direction X by reciprocating movement of the actuator 44 controlled by the control device 9.

Furthermore, the molding device 1 includes an outer shape guide device 110. In this embodiment, the outer shape guide device 110 includes a pair of outer shape guide members 146 that are attached to a pair of presser members 142 of the presser unit 141 so as to be slidable in the vertical direction Z, for example, by a combination of pins and holes. Further, the pair of external guide members 146 are configured to be biased downward with respect to the pair of press members 142, for example, by a spring. Further, the pair of external guide members 146 are movable together with the pair of presser members 142 so as to approach and separate from each other in the transport direction X. Thereby, the pair of external guide members 146 can slide on the pair of placement members 62. Each of the pair of outer shape guide members 146 includes an inner surface 146A for adjusting the outer shape of the outer covering material D placed on the pair of mounting members 62 (62U, 62D) to a predetermined outer shape. The inner surface 146A has, for example, a semicircular arc shape in plan view, and is determined according to the shape of the folded food product P. The pressing member 142 is arranged inside the inner surface 146A of the external guide member 146.

Next, the operation of the molding apparatus 1 according to the second embodiment of the present invention will be described with reference to FIGS. 17A to 24B.

The pressing device 4, pushing device 5, and wrapping device 6 are placed on standby at their initial positions. Specifically, the lifting base 4A is raised to the standby position, and the pressing device 4 (a pair of pressing members 142 and a pair of external guide members 146) and the pushing device 5 (two end pushing members 59 and a center pushing member 59) The member 54) is moved upwardly away from the wrapping device 6. Further, the actuator 5A of the pushing device 5 is operated to move the central pushing member 54 upward away from the packaging device 6. Since the actuator 43 of the holding device 4 is always operated downward, the pair of holding members 142 and the pair of external guide members 146 of the holding device 4 are urged downward. The height of the pair of external guide members 146 is lower than the height of the pair of press members 142. The height of the pair of pressing members 142 is lower than the height of the central pushing member 54. The heights of the two end pushing members 59 are approximately the same as the height of the pair of pressing members 142 (see FIG. 17A).

Furthermore, by operating the actuator 44 of the holding device 4, the pair of holding members 142 of the holding device 4 and the pair of outer shape guide members 146 of the outer shape guide device 110 are placed in separated positions (states). Further, by operating the drive mechanism 63 of the placement unit 61, the pair of

placement members

62U and 62D of the packaging device 6 are placed in the close position (state). Further, by operating the reciprocating mechanism 67 of the wrapping unit 65, the pair of forming

rollers

66U and 66D are rotated in the center of each main body 66A to a position where the cylindrical side surfaces face each other (see FIG. 17B).

Similarly to the first embodiment, the upstream outer skin material D1 and the downstream outer skin material D2 are placed between a pair of mounting members 62 of the upstream mounting unit 61U and a pair of mounting members 62 of the downstream mounting unit 61D. is dropped (transferred) onto the mounting member 62 of.

Hereinafter, since the processes for the two outer skin materials D1 and D2 are the same, only one of the outer skin materials will be explained. Due to the weight and fall of the inner material F, the central portion DC of the outer skin material D transferred onto the pair of mounting members 62 enters into the opening 62H (opposed recess 62A) and becomes depressed (placed). process, see FIGS. 17A and 17B). When the central portion DC of the outer skin material D is greatly depressed, it is received by the cylindrical side surfaces of the pair of forming rollers 66, thereby preventing the outer skin material D from falling from the mounting unit 61.

The lifting base 4A is moved downward, the pressing device 4 and the pushing device 5 are lowered, and the pair of contour guide members 146 of the contour guide device 110 are placed on the pair of mounting members 62 around the outer skin material D. They are brought into contact with each other, and the movement of the elevating base 4A is stopped (see FIGS. 18A and 18B). The pair of pressing members 142 are separated from the outer skin material D.

Next, the actuator 44 is actuated to move the pair of pressing members 142 and the pair of external guide members 146 to the approach position while sliding the pair of external guide members 146 on the pair of placement members 62. Then, the outer shape of the outer skin material D is adjusted to the shape of the inner surface 146A of the pair of outer shape guide members 146. Further, by moving the outer skin material D toward the gap between the pair of mounting members 62, the center portion DC of the outer skin material D is slightly depressed downward, and the end portion DB of the outer skin material D is slightly bent downward. (Outline guide step, see FIGS. 19A and 19B). In this way, by making the outer shape of the outer skin material D uniform on the pair of placement members 62, the deviation in the overlapping of the outer edges of the folded food product P is reduced, and the shape of the folded food product P is made uniform. It can be done.

Move the elevating base 4A downward to lower the holding device 4 and the pushing device 5. By bringing the pair of pressing members 142 of the pressing device 4 into contact with the upper surface of the peripheral edge DA of the outer skin material D, the outer skin material D is pressed toward the pair of mounting members 62. The pair of external guide members 146 slide against the pair of press members 142 and remain in contact with the mounting member 62. The lifting base 4A is further moved downward, and a portion of the rod of the actuator 43 is retracted (retracted) into the air cylinder due to the resistance received from the outer cover material D via the pair of holding members 142. In this state, the descent of the elevating base 4A is temporarily stopped, and the peripheral edge DA of the outer covering material D is held between the pair of pressing members 142 and the pair of mounting members 62 (pressing step, FIG. 20A and FIG. 20B).

Further, the pair of forming rollers 66 are rotated in the feeding direction and stopped at a predetermined rotational position (phase) where the recessed portion 66C of the pair of forming rollers 66 constitutes the through hole 66H (see FIGS. 20A and 20B).

In this embodiment, in the center of the pair of forming rollers 66, the upper entrance of the through hole 66H is larger than the opening 62H of the pair of mounting members 62, and the lower exit of the through hole 66H is larger than the opening 62H of the through hole 66H. smaller than Preferably, the lower end 66CB of the recess 66C is located below the axis of the forming roller 66.

By moving the lifting base 4A further downward to the lowering end position and moving the pair of end pushing members 59 of the pushing device 5 downward, the lower ends of the pair of end pushing members 59 are It passes between the mounting members 62 and reaches between the pair of forming rollers 66 . As a result, the peripheral edge portions DB on both sides of the skin material D are pushed downward, and the position of the central portion DC of the skin material D is lowered. As a result, the top position of the inner material F is lowered. (See FIGS. 21A and 21B). The central pushing member 54 of the first pushing unit 51 is located above the inner material F.

rollers

66U and 66D is arranged). It is preferable that it be at the same position as the above position) or slightly above it. The stretched peripheral edge portion DB is folded in half along the side surfaces of the pair of forming rollers 66 (66U, 66D).

While the elevating base 4A is stopped at the lowering end position, the actuator 5A of the pushing device 5 is operated to lower the central pushing member 54 of the first pushing unit 51. Thereby, the center pushing member 54 passes through the opening 62H of the pair of holding members 142 and the pair of placement members 62, pushes down the inner material F, and penetrates the center portion DC of the outer skin material D. It is pushed downward and expanded inside the hole 66H. As a result, the outer skin material D is deformed (formed) into a bowl shape through the inner material F, that is, the inner material F is placed inside the bowl-shaped outer skin material D. While the outer skin material D is deformed into a bowl shape, the outer surface (circumferential surface) of the central portion DC of the outer skin material D is pressed against a part of the inner surface of the through hole 66H. The bottom portion can swell without contacting the inner surface of the through hole 66H (see bowl-shaped forming step, inner material arrangement step, FIGS. 22A and 22B).

Then, by operating the actuator 5A to raise the central pushing member 54 of the first pushing unit 51, the central pushing member 54 is separated from the inner material F (see FIGS. 23A and 23B). Preferably, compressed air is discharged from the bottom surface of the central pushing member 54 while the first pushing unit 51 is lowered and raised. This prevents the inner material F from adhering to the center pushing member 54. The top position of the inner material F is lower than that of the outer skin material D, and the inner material F is stably arranged inside the outer skin material D.

Next, by raising the elevating base 4A, the pair of end pushing members 59 are raised, and using this as a starting point, the reciprocating mechanism 67 of the packaging unit 65 is operated to move the pair of forming

rollers

66U and 66D is such that the peripheral edge portions DB (folded portions) on both sides of the outer covering material D are compressed (sealed) by being sandwiched between the pair of forming rollers 66 (66U, 66D). (See FIGS. 23A and 23B).

Next, by moving the lifting base 4A upward all at once to the standby position (ascent end position), the pair of pressing members 142 of the pressing device 4, the pair of external guide members 146, and the central pushing member 54 of the pressing device 5 are removed. and the pair of end pushing members 59 are simultaneously raised. At the initial stage of raising the elevating base 4A, the actuator 43 of the holding device 4 is urged downward, so that the state in which the pair of holding members 142 are in contact with the outer skin material D is maintained. Thereafter, the pair of pressing members 142 separates from the outer covering material D and moves upward (see FIGS. 24A and 24B).

Next, the pair of forming rollers 66 are rotated in the feeding direction (inwardly and in opposite directions). Since the peripheral edge DB (folded portion) of the outer skin material D is already sandwiched between the pair of forming rollers 66, the outer skin material D is prevented from slipping against the rotating pair of forming rollers 66, and It moves downward between the forming rollers 66 of. The opposing arcuate peripheral edge DA of the skin material D is gradually pinched and compressed from the bottom to the top by the side surfaces around the recess 66C of the pair of forming rollers 66 in close positions, thereby sealing the arcuate peripheral edge DA. to form a sealed portion DF. Further, the inner surface of the through hole 66H forms the peripheral surface of the central portion DC of the outer skin material D that covers the inner material F. As a result, a semicircular folded food product P is formed in which the inner material F is covered with the outer skin material D (sealing step, see FIGS. 24A and 24B).

Further, by rotating the pair of forming rollers 66 inwardly in opposite directions, the folded food product P is discharged from the two wrapping units 65 of the wrapping device 6 to the support device 7. In detail, the two elevating conveyors 7AU and 7AD are raised to the elevated position to receive the folded food P, the two elevating conveyors 7AU and 7AD are lowered to the lower end position to convey the folded food P, and the unloading device 8 (carrying out process).

Next, a forming apparatus 1 for folded food products according to a third embodiment of the present invention will be described with reference to FIGS. 25A to 33B. The molding apparatus 1 of the third embodiment is the same as the molding apparatus of the first embodiment except that the presser unit 41 of the molding apparatus 1 of the first embodiment is replaced with a presser unit 241 and an outer shape guide device 210 is added. It is the same as 1. Hereinafter, the same components as the components of the molding device 1 of the first embodiment will be given the same reference numerals as the components of the molding device 1 of the first embodiment, and their description will be omitted.

The pressing device 4 of the molding device 1 of the third embodiment is configured to make the outer shape of the outer skin material D uniform and to press the peripheral edge DA of the outer skin material D against the wrapping device 6. The pressing device 4 corresponds to an elevating mechanism (not shown) disposed inside the base 1A, an elevating base 4A attached to the elevating mechanism, and two outer covering materials D1 and D2 that are attached to the elevating base 4A. It includes two presser units 241.

Each of the two holding units 241 includes an actuator 43 that operates in the vertical direction Z, a double rod type actuator 44 that operates in the transport direction X, and one holding member 242. Actuator 43 and actuator 44 include, for example, pneumatic cylinders.

The holding member 242 is attached to the actuator 43 and is movable in the vertical direction Z. As shown in FIG. 25B, the pressing member 242 has a cylindrical shape and is arranged to surround the central pushing member 54 and to be concentric therewith. Moreover, the holding member 242 is attached to the sliding tube 53 in a sealable and slidable manner. Further, the pressing member 242 is configured so as not to come into contact with the end pushing member 59 and the inner material F. Furthermore, the pressing member 242 is configured to press the peripheral edge DA of the outer covering material D against the pair of mounting members 62 of the wrapping device 6 by the operation of the actuator 43 (see FIG. 28B).

Furthermore, the molding device 1 includes an outer shape guide device 210. In this embodiment, the profile guide device 210 includes a pair of profile guide members 246 attached to a pair of brackets 45 of the actuator 44 . Thereby, the pair of external guide members 246 can be moved toward and away from each other in the transport direction X by the reciprocating motion of the actuator 44. Further, the pair of external guide members 246 are attached to the pair of brackets 45 so as to be slidable in the vertical direction Z, for example, by a combination of pins and holes. Further, the pair of external guide members 246 are configured to be biased downward with respect to the pair of brackets 45, for example, by a spring. Thereby, the pair of external guide members 246 can slide on the pair of mounting members 62. Each of the pair of outer shape guide members 246 includes an inner surface 246A for adjusting the outer shape of the outer skin material D placed on the pair of mounting members 62 (62U, 62D) to a predetermined outer shape. The inner surface 246A has, for example, a semicircular arc shape when viewed from above, and is determined according to the shape of the folded food product P.

Next, the operation of the molding apparatus 1 according to the third embodiment of the present invention will be described with reference to FIGS. 25A to 33B.

The pressing device 4, pushing device 5, and wrapping device 6 are placed on standby at their initial positions. Specifically, the lifting base 4A is raised to the standby position, and the holding device 4 (the holding member 242 and the pair of external guide members 246) and the pushing device 5 (the two end pushing members 59 and the center pushing member 54) is moved upward away from the packaging device 6. Further, the actuator 5A of the pushing device 5 is operated to move the central pushing member 54 upward away from the packaging device 6. Since the actuator 43 of the holding device 4 is constantly operated downward, the holding member 242 of the holding device 4 is urged downward. The height of the pair of external guide members 246 is lower than the height of the pressing member 242. Further, the height of the pressing member 242 is lower than the height of the central part pushing member 54. The heights of the two end pushing members 59 are approximately the same as the height of the pressing member 242 (see FIG. 25A).

Furthermore, by operating the actuator 44 of the holding device 4, the pair of contour guide members 246 of the contour guide device 210 are placed in the separated position (state). Furthermore, by operating the drive mechanism 63 of the placement unit 61, the pair of

placement members

62U and 62D of the packaging device 6 are placed in close positions. Further, by operating the reciprocating mechanism 67 of the wrapping unit 65, the pair of forming

rollers

66U and 66D are rotated in the center of each main body 66A to a position where the cylindrical side surfaces face each other (see FIG. 25B).

Hereinafter, since the processes for the two outer skin materials D1 and D2 are the same, only one of the outer skin materials will be explained. Due to the weight and fall of the inner material F, the central portion DC of the outer skin material D transferred onto the pair of mounting members 62 enters into the opening 62H (opposed recess 62A) and becomes depressed (placed). process, see FIGS. 25A and 25B). When the central portion DC of the outer skin material D is greatly depressed, it is received by the cylindrical side surfaces of the pair of forming rollers 66, thereby preventing the outer skin material D from falling from the mounting unit 61.

The lifting base 4A is moved downward, the pressing device 4 and the pushing device 5 are lowered, and the pair of contour guide members 246 of the contour guide device 210 are placed on the pair of placement members 62 around the outer skin material D. They are brought into contact with each other, and the movement of the elevating base 4A is stopped (see FIGS. 26A and 26B). The pressing member 242 is separated from the outer skin material D.

Next, the actuator 44 is actuated to move the pair of outer shape guide members 246 to the approach position while sliding them on the pair of mounting members 62, thereby changing the outer shape of the outer skin material D to the pair of outer shape guide members. Match the shape of the inner surface 246A of 246. Further, by moving the outer skin material D toward the gap between the pair of mounting members 62, the center portion DC of the outer skin material D is slightly depressed downward, and the end portion DB of the outer skin material D is slightly bent downward. (Outline guide step, see FIGS. 27A and 27B). In this way, by making the outer shape of the outer skin material D uniform on the pair of placement members 62, the deviation in the overlapping of the outer edges of the folded food product P is reduced, and the shape of the folded food product P is made uniform. It can be done.

Move the elevating base 4A downward to lower the holding device 4 and the pushing device 5. By bringing the pressing member 242 of the pressing device 4 into contact with the upper surface of the peripheral edge DA of the outer skin material D, the outer skin material D is pressed toward the pair of placement members 62, and the inside of the pressing member 242 is kept in an airtight space. Make it. The pair of external guide members 246 slide in the vertical direction Z with respect to the holding member 242 and remain in contact with the mounting member 62. The lifting base 4A is further moved downward, and a portion of the rod of the actuator 43 is retracted (retracted) into the air cylinder due to the resistance received from the outer cover material D via the holding member 242. In this state, the descent of the elevating base 4A is temporarily stopped, and the peripheral edge DA of the outer covering material D is held between the pressing member 242 and the pair of mounting members 62 (pressing step, FIGS. 28A and 28B reference).

Further, the pair of forming rollers 66 are rotated in the feeding direction and stopped at a predetermined rotational position (phase) where the recessed portion 66C of the pair of forming rollers 66 constitutes the through hole 66H (see FIGS. 28A and 28B).

By moving the lifting base 4A further downward to the lowering end position and moving the pair of end pushing members 59 of the pushing device 5 downward, the lower ends of the pair of end pushing members 59 are It passes between the mounting members 62 and reaches between the pair of forming rollers 66 . As a result, the peripheral edge portions DB on both sides of the skin material D are pushed downward, and the position of the central portion DC of the skin material D is lowered. As a result, the top position of the inner material F is lowered. (See FIGS. 29A and 29B). The central pushing member 54 of the first pushing unit 51 is located above the inner material F.

rollers

Next, compressed air is supplied to the sealed internal space of the pressing member 242 from a compressed air supply device (not shown) such as a compressor. Thereby, the air pressure in the sealed internal space is increased to inflate the outer skin material D downward (see bowl-shaped forming step, FIGS. 30A and 30B).

While the elevating base 4A is stopped at the lowering end position, the actuator 5A of the pushing device 5 is operated to lower the central pushing member 54 of the first pushing unit 51. As a result, the center pushing member 54 passes through the openings 62H of the pair of placement members 62 in the sealed internal space of the pressing member 242, pushes down the inner material F, and pushes down the center portion DC of the outer skin material D. It is pushed downward and expanded inside the through hole 66H. As a result, the outer skin material D is deformed (formed) into a bowl shape through the inner material F, that is, the inner material F is placed inside the bowl-shaped outer skin material D. While the outer skin material D is deformed into a bowl shape, the outer surface (circumferential surface) of the central portion DC of the outer skin material D is pressed against a part of the inner surface of the through hole 66H. The bottom portion can swell without contacting the inner surface of the through hole 66H (see bowl-shaped forming step, inner material arrangement step, FIGS. 31A and 31B).

Then, by operating the actuator 5A to raise the center pushing member 54 of the first pushing unit 51, the center pushing member 54 is separated from the inner material F (see FIGS. 32A and 32B). Preferably, compressed air is discharged from the bottom surface of the central pushing member 54 while the first pushing unit 51 is lowered and raised. This prevents the inner material F from adhering to the center pushing member 54. The top position of the inner material F is lower than that of the outer skin material D, and the inner material F is stably arranged inside the outer skin material D.

By raising the elevating base 4A, the pair of end pushing members 59 are raised, and using this as a starting point, the reciprocating mechanism 67 of the wrapping unit 65 is operated to move the pair of forming

rollers

66U and 66D. approach the approach position. The approach gap between the pair of forming

rollers

66U and 66D is such that the peripheral edge portions DB (folded portions) on both sides of the outer covering material D are sandwiched and compressed (sealed) by the pair of forming rollers 66 (66U, 66D). (See FIGS. 32A and 32B).

Next, by moving the lifting base 4A upward at once to the standby position (ascending end position), the holding member 242 of the holding device 4, the pair of external guide members 246, the center pushing member 54 of the pushing device 5, and the pair The end pushing member 59 of is simultaneously raised. At the initial stage of raising the elevating base 4A, the actuator 43 of the holding device 4 is urged downward, so that the state in which the pair of holding members 242 are in contact with the outer skin material D is maintained. Thereafter, the pair of pressing members 242 separates from the outer covering material D and moves upward (see FIGS. 33A and 33B).

Next, the pair of forming rollers 66 are rotated in the feeding direction (inwardly and in opposite directions). Since the peripheral edge DB (folded portion) of the outer skin material D is already sandwiched between the pair of forming rollers 66, the outer skin material D is prevented from slipping against the rotating pair of forming rollers 66, and It moves downward between the forming rollers 66 of. The opposing arcuate peripheral edge DA of the skin material D is gradually pinched and compressed from the bottom to the top by the side surfaces around the recess 66C of the pair of forming rollers 66 in close positions, thereby sealing the arcuate peripheral edge DA. to form a sealed portion DF. Further, the inner surface of the through hole 66H forms the peripheral surface of the central portion DC of the outer skin material D that covers the inner material F. As a result, a semicircular folded food product P is formed in which the inner material F is covered with the outer skin material D (sealing step, see FIGS. 33A and 33B).

Further, by rotating the pair of forming rollers 66 inwardly in opposite directions, the folded food product P is discharged from the two wrapping units 65 of the wrapping device 6 to the support device 7. In detail, the two elevating conveyors 7AU and 7AD are raised to the elevated position to receive the folded food P, the two elevating conveyors 7AU and 7AD are lowered to the lower end position to convey the folded food P, and the unloading device 8 (export process) (see FIGS. 33A and 33B).

Although the description of the folded food product P forming apparatus 1 according to the embodiment of the present invention is generally as described above, it is not limited thereto, and various modifications can be made within the scope of the claims, and these are also within the scope of the present invention. Needless to say, it is included in

The position (phase) of the opposing forming rollers 66 (66U, 66D) in the rotational direction in the forming process is adjusted by the control device 9. In the step of forming the outer skin material D into a bowl shape, the size of the sealed portion DF of the folded food product P can be changed by changing the standby position where the upper end 66CA of the recessed portion 66C is arranged. For example, when the sealing process is started from a position where the upper end 66CA is rotated inward with respect to the standby position of the recess 66C shown in FIG. The size of the top of the head increases. Moreover, even when the outer shell material D is made small, foldable foods can be formed.

Furthermore, when the sealing process is started from the position (phase) where the upper end 66CA is rotated outward, the size of the sealing portion DF of the folded food product P, especially the top of the head, becomes smaller. Further, even when the outer skin material D is made larger, a folded food product can be formed in which the outer skin material D that covers the inner material F has a larger circumference. In this way, it is also possible to form folded foods P of various sizes. FIG. 13 is a schematic perspective view of the folded food product P. FIG. 13b shows a folded food product in which the sealing portion DF is formed smaller than that in FIG. 13a.

Further, in the above embodiment, an example has been described in which the outer skin material D on which the inner material F is placed is supplied to the folding device 3, but the first pushing unit 51 is configured to be able to supply the inner material, and the first pushing It is also possible to form the shell material into a bowl shape by pushing the unit into the shell material or by supplying the inner material from this first pushing unit.

Furthermore, in the embodiment described above, by aligning the center of the outer skin material D with the center of the mounting unit 61, when the outer skin material D is folded in half, the arc-shaped peripheral portions DP overlap each other without shifting. However, by placing the outer skin material D on the mounting unit 61 so that the respective centers are relatively shifted, the position of one arc-shaped peripheral edge part DP is shifted from that of the other arc-shaped peripheral edge part DP. It is also possible to form a sealing part DF (see FIG. 13c).

In the above embodiment, if the shape of the folded food product P is within an allowable range, the pair of placement members 62 may be omitted and the outer skin material D may be transferred onto the pair of forming rollers 66. , the pressing step and the

pressing members

42, 142, 242 may be omitted.

In the second and third embodiments, since there is no need to move the pair of mounting members 62 toward and away from each other, the pair of mounting members 62 are fixed to the base housing 6A, and the drive mechanism 63 is omitted. You may.

1 Forming device (for folded foods) 2

Supply conveyor

42, 42U, 42D Pressing member 54 Center pushing member 59 End pushing member 61

Placing unit

62, 62U, 62D Placing member 65

Wrapping unit

66, 66U, 66D Forming roller 66C Recessed portion 66H Through

hole

146, 246

External guide member

146A, 246A Inner surface D Outer skin material DA Peripheral portion DB End portion (folded portion)
DC Central part F Inner material P Folded food

Claims

An apparatus (1) for forming a folded food product (P) in which a flat outer skin material (D) is folded to enclose an inner material (F),
a pair of forming rollers (66U, 66D) that are rotated in opposite directions to move the outer skin material (D) folded together with the inner material (F) from above to below;
an end pushing member (59) disposed above the pair of forming rollers (66U, 66D) and movable up and down;
Each of the pair of forming rollers (66U, 66D) has a recess (66C) constituting a through hole (66H) through which the central portion (DC) of the outer skin material (D) that envelops the inner material (F) passes. has
The end pushing member (59) descends so as to push the ends (DB) on both sides of the center part (DC) of the outer skin material (D) between the pair of forming rollers (66U, 66D). It is possible to form a folded portion of the outer skin material (D) by
The pair of forming rollers (66U, 66D) form the folded portion of the outer skin material (D) and raise the end pushing member (59), and then form the folded portion of the outer skin material (D). A device (1) which is accessible to each other so as to compress the parts.
It has a pair of placement members (62U, 62D) arranged above the pair of forming rollers (66U, 66D) and on which the outer skin material (D) is placed, and the pair of placement members ( 62U, 62D) are spaced apart for passage of the end pusher (59).
It has a pair of pressing members (42U, 42D, 142) arranged above the pair of mounting members (62U, 62D), and the pair of pressing members (42U, 42D, 142) The apparatus (1) according to claim 2, which is capable of being lowered so as to press a peripheral edge (DB) of the outer covering material (D) toward the pair of mounting members (62U, 62D).
It has a pair of external guide members (146, 246) that can slide on the pair of mounting members (62U, 62D), and the pair of external guide members (146, 246) The apparatus according to claim 3, comprising inner surfaces (146A, 246A) for adjusting the outer shape of the outer skin material (D) placed on the pair of mounting members (62U, 62D) to a predetermined outer shape. 1).
The pair of placement members (62U, 62D) and the pair of pressing members (42U, 42D) hold down the peripheral edge (DA) of the skin material (D). 4. Device (1) according to claim 3, which is removable from one another in a stretching manner.
It has a cylindrical pressing member (242) arranged above the pair of mounting members (62U, 62D), and the pressing member (242) is attached to the peripheral edge (DB) of the outer skin material (D). 2 . The container is configured to be pressed toward the pair of mounting members ( 62 U, 62 D) to form a sealed space inside, and compressed air is supplied to the sealed space. The device (1) described in .
Apparatus (1) according to claim 1, wherein the end pushing member (59) is lowerable to a height at or just above the height at which the gap between the pair of forming rollers (66U, 66D) is smallest.
The device (1) according to claim 1, comprising a central part pushing member that pushes the central part (DC) of the inner material (F) and the outer skin material (D) downward.
The pair of forming rollers (66U, 66D) stop when the end pushing member (59) descends, and the rotational position at which the pair of forming rollers (66U, 66D) stops is in the through hole. Device (1) according to claim 1, which is adjustable to change the shape of (66H).
A method for forming a folded food (P) in which a flat outer skin material (D) is folded to wrap an inner material (F), the method comprising:
(a) a step (a) of transferring the outer covering material (D) from the supply conveyor (2) to a pair of mounting members (62U, 62D) arranged facing each other;
(b) pressing the peripheral edge (DA) of the outer covering material (D) against the two mounting members (62U, 62D), respectively, by lowering a pair of pressing members (42U, 42D); ,
(d) by lowering the end pushing member (59), pushing the ends (DB) on both sides of the outer covering material (D) downward from between the pair of mounting members (62U, 62D); A step of extending it to between a pair of opposing forming rollers (66U, 66D) to form a folded part;
(f) compressing the folded portion of the end (DB) by raising the end pushing member (59) and bringing the pair of forming rollers (66U, 66D) closer to each other;
(g) Rotate the pair of opposing forming rollers (66U, 66D) inwardly, and press the inside of the recess (66C) formed in the pair of forming rollers (66U, 66D). The pair of forming rollers (66U, 66D) form the periphery of the outer skin material (D) on which the material (F) is arranged, and the folded peripheral edge (DA) of the outer skin material (D). A molding method, comprising the step of sealing between opposing side surfaces around the recess (66C).
Between the step (b) and the step (d),
(c) By separating the pair of opposing pressing members (42U, 42D) from each other and separating the pair of opposing mounting members (62U, 62D) from each other, the outer skin material (D) is The molding method according to claim 10, comprising a stretching step.
In the step (c), after stretching the outer skin material (D), the pair of opposing pressing members (42U, 42D) are moved closer to each other, and the pair of opposing mounting members (62U, 62D) are moved closer to each other. 12. The molding method according to claim 11, characterized in that the method includes the step of bringing the two parts close to each other.
In the step (a), the inner material (F) is placed on the outer skin material (D),
Between the step (d) and the step (f),
11. The method according to claim 10, further comprising the step of: (e) pushing down the center portion (DC) of the outer skin material (D) through the inner material (F) by lowering the center portion pushing member (54). molding method.