JP3981098B2 - Food packaging method and packaging device - Google Patents

Description

  The present invention relates to a packaging method and packaging apparatus for food such as rice balls.

In the packaging form of “Triangle Onigiri” sold at convenience stores, a triangular rice ball (401) is wrapped along its shape with a packaging sheet (200) as shown in FIG. 26 (Patent Document 1). As shown in FIG. 27, there is a packaging bag (300) containing rice balls (401).
As shown in FIGS. 19 and 20, the former packaging form uses a packaging sheet (200) formed by sandwiching a sheet-like seaweed (206) between an outer film (201) and an inner film (205). Thus, the sheet-like seaweed (206) can be shielded from both the rice balls (401) and the outside air, and the seaweed is kept in a dry state without impairing the flavor or texture. In addition, by applying a cut tape (203) to the outer film (201) to form a severable part (202), it is possible to easily unwrap the rice balls, and when the packaging is unwound, the sheet-like seaweed is naturally released. (206) covers rice balls and is convenient for eating.
In the former case, rice balls can be packaged with high efficiency by an automatic packaging device, and the packaging cost can be reduced.

The latter packaging form of FIG. 27 was born from the recent high-class orientation, and has the effect of making the rice balls look larger than the former, where the shape of the rice balls appears directly in the packaging form.
However, the packaging bag (300) is formed of a single sheet, and the seaweed is wound directly on the rice balls, so that the seaweed gets wet before eating, and the flavor and texture of the seaweed are impaired.
In the latter case, since the rice balls are manually put into the packaging bag (300), the efficiency of the bagging operation is not increased, and there is a problem that the cost is increased.
Furthermore, in the latter case, when unwrapping, the thumbs f1 and f2 of both hands are inserted into the sealing portion (303) of the bag with the V-shaped cut (306) formed in the opening sealing portion (303) of the bag. Support the bag so that it hits and tear the packaging bag from the notch (306). Since the rice ball (401) cannot be held by hand at this time, the rice ball (401) may fall from the bag as soon as the packaging bag (300) is split into two. The dropped rice ball (401) collapses beyond its original shape, making it impossible to eat.

JP 2003-192075 A

  The present invention solves the above-mentioned problems and provides a food packaging method and a packaging apparatus that are versatile with respect to the shape of the food.

The method for packaging food according to the present invention comprises a step of feeding a food (400) to be packaged into a food containing hole (11) formed in the outer periphery of a turntable (1) arranged to be replaceable,
A packaging sheet supply step of supplying a substantially rectangular packaging sheet (200) above a predetermined stop position of the food containing hole (11) of the turntable (1);
While the food (400) on the turntable (1) is pushed up by the push-up member (33), the lower surface of the packaging sheet (200) waiting at the packaging sheet supply position is pushed up by the food (400). , A process of covering one end of the packaging sheet (200) on the food (400) ,
A flat protruding block (5) having a storage portion (51) which can protrude in the lateral direction at the raised height position of the food (200), can store the food (400) and has an opening on the downstream side, In the process of protruding, the food (400) that hangs down the downstream side of the packaging sheet that is supported and supported by the lifting member (33) in the raised position is accommodated in the accommodating portion (51), and the raised member in the raised position (33) is handed over to the guide plate (61) located on the downstream side, and the portion of the packaging sheet (200) that is hung from the food (400) is the edge of the guide plate (61) on the push-up member (33) side Projecting process to bend it so that it covers the lower surface of food (400)
The length of the packaging sheet (200) protruding from the food (400) during the protrusion of the food (400) by the sheet ear folding device (6) arranged across the protruding transition path of the protruding block (5). Packaging sheet ear folding step of folding both end ears along the direction on the left and right side surfaces along the protruding direction of the protruding block (5);
At the protruding end of the food (400), the food sheet (400) is accommodated in the accommodating part (51) of the protruding block (5), and the folded portion of the packaging sheet ear is welded by the welding device (8). And a welding process for forming the packaging sheet into a bag (300) having an opening at one end,
A sealing step of closing the opening (301) of the bag (300) by welding or the like.

The packaging apparatus of the present invention has a food storage hole (11) at equal intervals on the outer periphery, a turntable (1) that rotates intermittently and conveys the food (400) to the push-up station S3,
A packaging sheet supply device (4) for supplying a rectangular packaging sheet (200) so that one end of the rectangular packaging sheet (200) enters the push-up transition path of the food (400);
With respect to the packaging sheet (200) waiting in a horizontal state at the packaging sheet supply position, the food (400) is pushed up from below the sheet, and one end side of the packaging sheet is put on the upper surface of the food (400), and the other end side is covered. A food push-up member (33) to be suspended;
The food (200) is placed so that it can project laterally at the raised height position of the food (200), and has a storage part (51) that can receive the food (400) and that is open on the downstream side. The food (400) supported on and supported by the push-up member (33) is received in the receiving portion (51) and received by the guide plate (61) located downstream of the push-up member (33) at the raised position. Protrusion that is folded so that the portion of the packaging sheet (200) that hangs down from the food (400) is applied to the edge of the guide plate (61) on the push-up member (33) side so that it covers the lower surface of the food (400) Block (5) ;
Sheet ear folding device that folds both ends of the packaging sheet protruding from the food (400) along the longitudinal direction onto the left and right sides along the protruding direction of the protruding block (5) while the food is protruding. 6) and
Welding which is arranged at the protruding end of the food (400) and welds the overlapping part of the ear part of the packaging sheet (200) in a state where the food (400) is stored in the storage part (51) of the protruding block (5). A device (8);
Sealing device (9) that closes the opening (301) of the bag (300) with the hook and the food (400) formed by welding the overlapping portion of the ear by the welding device (8 )
And
The sheet ear folding device (6) includes a guide plate (61) for guiding the food (400) protruding downstream by the protruding block (5), and a food provided above the guide plate (61). An auxiliary guide plate (62) for preventing the lifting of both end ears along the longitudinal direction of the packaging sheet (200) covering the upper surface of (400), and between the auxiliary guide plate (62) and the guide plate (61) The first, second, and third ruler plates (63), (64), and (65) arranged side by side in the direction of food (400) at
Between the upper edge of the first ruler plate (63) on the upstream side and the auxiliary guide plate (62) and between the lower edge of the first ruler plate (63) and the guide plate (61), food is provided. Gaps x1, x1 through which the upper and lower ears (200a) (200b) of the packaging sheet (200) covered with (400) can pass are formed,
A gap x2 is formed between the lower edge of the second ruler plate (64) and the guide plate (61) to allow the lower ear (200b) of the packaging sheet (200) to pass through, and the second ruler plate (64). The upper part of the sheet overlaps the outside of the first ruler plate (63), and the upper ear part (200a) of the packaging sheet (200) protrudes from the overlapping part and is bent to the side surface of the block (5). A gap x4 that can pass through is formed,
The upstream portion of the third ruler plate (65) overlaps the outside of the second ruler plate (64), and the lower ear portion (200a) of the packaging sheet (200) protrudes from the overlapping portion to the block (5). A gap x5 that can be passed in a folded state is formed on the side surface of
The upstream end of the second ruler plate (64) is formed with an inclined edge (64a) inclined so that the upstream side gradually approaches the auxiliary guide plate (62), and the upstream end of the third ruler plate (65) is An inclined edge (65a) is formed so that the upstream side gradually approaches the guide plate (61),
The turntable (1) and the protruding block (5) can be exchanged for one having a food containing hole (11) and a containing part (51) corresponding to the shape of the food to be packaged.

The packaging device can automatically package food such as rice balls, improve the packaging efficiency, and increase the productivity of the packaged food.
Since it is a bag package, it can satisfy the luxury and can make food look bigger.
By replacing the turntable (1) and the protruding block (5) with a food containing hole (11) and containing part (51) corresponding to the shape to be packaged, triangular rice balls, short stick rice, Inari Sushi Even if the shape of the food is different, the packaging is possible, and it is versatile for the shape of the food.

In addition, if the packaged food is unpacked by the following procedure, the food can be prevented from dropping from the bag.
With one hand, hold one of the severable portions (202) of the packaging bag (300) so that the food is lightly grasped from the top of the bag. Use the other hand to pick and pull the tip of the separable portion (202). The outer film (201) is divided into two from the severable part (202).
The food (400) is partially exposed by pulling one side of the free packaging bag (300) with a hand that has torn the outer film (201).
Hold the exposed portion of the food (400) with its torn hand and pull the remaining portion of the packaging bag (300) outward with the other hand.
The packaging bag (300) is completely removed from the food, and the food (400) can be eaten. When unpacking, you can always hold the food (400) by hand, and as before, tearing the packaging bag (300) into two will cause the food to fall out of the bag. Can be prevented.

Food to be packaged As shown in FIG. 22, the food (400) to be packaged in the embodiment is a triangular rice ball (401), and the rice ball (401) is a mass of rice or white rice, It can even contain ingredients.

Packaging Bag The packaging bag (1) that houses the rice ball (401) is formed by a rectangular sheet (200) shown in FIGS.
The packaging sheet (200) has a rectangular sheet-shaped food (207) sandwiched between the transparent outer film (201) and the translucent inner film (205), and the outer peripheral portion of the outer film (201) and the inner film (205). Is formed by welding (208).
The packaging sheet (200) is bent in a substantially U shape at the center in the length direction, and the both sides of the packaging sheet along the longitudinal direction of the packaging sheet and the both ends of the packaging sheet with the triangular rice ball (401) sandwiched between the sheets. It protrudes from the rice ball (401) to a state with sufficient margin.
The margins of both sides of the packaging sheet (200) along the longitudinal direction that protrude from the rice balls (401) are called ears.
The outer film (201) has a separable portion (202) at the center in the width direction that can split the film in the length direction over the entire length.
The severable portion (202) of the embodiment is formed by a cut tape (203).
The cut tape (203) is known when unwrapping the film packaging covering the cigarette box, and is bonded to the outer film (202), and one end of the narrow tape is attached to the cut tape (203). Pulling can tear the outer film (202) with the tape width.
The inner film (205) is formed by stacking two rectangular film pieces (205a) (205a) having the same shape and overlapping the inner edges along the longitudinal direction with an overlapping width of 5 to 10 mm.
The sheet-like food (207) is a sheet-like seaweed (206) in the examples. The sheet-like seaweed (206) is smaller than the outer film (201) and is large enough to cover the rice ball (401).

Onigiri packaging procedure As shown in FIG. 22a, a rice ball with a lateral posture is placed on one end of the packaging sheet (200) waiting in a horizontal state with the outer film (201) on the upper side and the inner film (205) on the lower side ( 401) is pushed up and the packaging sheet (200) is put on the triangular upper surface of the rice ball (401). At this time, as shown in FIG. 22b, the width center of the packaging sheet (200) is aligned with the width center of the rice ball (401), and the bottom edge of the rice ball is shifted from the center of the length of the packaging sheet (200) by 1/2 of the thickness of the rice ball. The packaging sheet (200) is placed on the rice ball (401) so that the other side of the packaging sheet is suspended.
As shown in FIG. 22c, the hanging portion of the packaging sheet (200) is folded so as to cover the triangular lower surface of the rice ball (401). As a result, the rice ball (401) is sandwiched between the packaging sheets bent in a substantially U-shape and aligned at both ends.
As shown in FIG. 22d, the center part of both ears of the packaging sheet (200) protruding from the rice ball (401) is folded inward.
22e, the upper ear portion (200a) of the packaging sheet (200) is folded downward, and the lower ear portion (200b) is then folded upward as shown in FIG. ) (200b) is folded and welded (304) to form a collar (302), and a bag (300) having one end opened (301) is formed.
As shown in FIG. 22g, the bag opening (301) is welded to form the sealing portion (303). However, the cut tape (203) portion of the outer film (201) constituting the packaging sheet (200) and the inner end overlapping portion of the film pieces (205a) (205a) of the inner film (205) are not welded.

As shown in FIG. 1, the packaging device includes a first turntable (1) for intermittently feeding a pre-molded triangular rice ball (401),
A packaging sheet supply device (4) for supplying the packaging sheet (200) above a push-up station S3 described later of the first turntable (1);
A food push-up member (33) that pushes up a rice ball (401) from below the supplied packaging sheet (200), covers one end side of the packaging sheet on the top surface of the rice ball (401), and hangs down the other end side. )When,
The rice ball (401) is accommodated, the rice ball (401) is slid on the guide plate (61) and moved downstream, and the hanging portion of the packaging sheet (200) is moved to the guide plate (61) and the rice ball (401). A protruding block (5) that is pulled in between and puts the sheet on the lower surface of the rice ball (401);
A sheet ear folding device (6) for folding the ear of the packaging sheet protruding from the rice ball (401) on the side of the protruding block (5) in the protruding transition path of the rice ball (401);
A welding device (8) which is disposed at the protruding end of the rice ball (401) and welds the overlapping portion of the ears of the packaging sheet (200) in a state where the protruding block (5) holds the rice ball (401);
And a sealing device (9) for closing the opening (301) of the bag (300) by welding or the like.

Next, each structure of the said packaging apparatus is demonstrated.
The first turntable The first turntable (1) has a plurality (eight in the embodiment) of rice ball receiving holes (11) provided at equal intervals near the outer periphery.
The accommodation hole (11) is formed in a triangle corresponding to the triangular rice ball (401) by opening on the upper and lower surfaces of the first turntable (1), with one triangular apex facing the rotation center side of the turntable. Yes.
As shown in FIG. 3, the lower opening edge of each accommodation hole (11) slightly protrudes inward to form an edge (12) that prevents the rice balls from dropping.
The first turntable (1) is detachably attached to a rotating shaft (13) linked to an intermittent rotation driving device (not shown).
A stepped through hole (14) is formed in the center of the upper surface of the first turntable (1), and a plurality of bolts (15) penetrating the stepped portion are screwed to the rotating shaft (13), thereby the turntable. (1) is fixed to the rotating shaft (13).
A cap (16) is fitted into the stepped through hole (14) and fixed to the rotating shaft (13) with a bolt (17).

As shown in FIG. 2, the first turntable (1) is divided into two equal halves. This is because the turntable (1) can be removed even when a packaging sheet supply device (4) described later partially covers the turntable (1).
In the first turntable (1), three rice ball charging stations S1, S1, S1, a thickness adjusting station S2, and a rice ball push-up station S3 are set in the rotation direction of the table.
Onigiri push-up station S3 is located at a position opposite to the central station of the three rice ball feeding stations S1, S1, S1.
An arc-shaped work table (2) is provided so as to surround the three rice ball feeding stations S1, S1, S1. The work table (2) includes a closing plate (21) that closes the bottom of the opening of the rice ball receiving holes (11) located at the three rice ball loading stations S1, S1, S1.
The work table (2) is fixed at a fixed position, and the work table (2) and the closing plate (21) remain in the fixed position even when the first turntable (1) rotates.
When the worker manually puts the triangular rice ball (401) into the accommodation hole (11) of the first turntable (1), the triangular rice ball (401) can be placed on the work table (2).

As shown in FIG. 3, a thickness aligning device (3) is provided in the thickness aligning station S2. The thickness aligning device (3) is configured such that a pair of pushing members (31), (32) face each other with a first turntable (1) sandwiched therebetween so as to be able to approach and separate. Both pushing members (31) and (32) are connected to an elevating drive device (not shown), and the accommodation hole (11) of the turntable (1) approaches and approaches the thickness adjusting station S2 in the downward direction. The pushing member (32) closes the bottom of the opening of the receiving hole (11), and the upper pushing member (31) penetrates into the receiving hole (11) by a certain depth to form a triangular rice ball ( The thickness of 401) is made constant.
While the first turntable (1) is rotating, the two pushing members (31) and (32) are separated from the first turntable (1).

Packaging sheet supply apparatus As shown in FIG. 1, the packaging sheet supply apparatus (4) includes a stocker (41) for stacking and storing the packaging sheets (200), a lower part of the stocker (41), and the rice ball push-up station S3. It is a known device composed of a plurality of belts (42) stretched in an endless manner between the upper part and the suction rod (43) arranged to be movable up and down below the stocker (41). .
The lowermost packaging sheet (200) in the stocker (41) is lifted by the suction rod (43) ascending the belt (42) and applied to the plurality of holes (44) on the upper surface of the suction rod (43). Then, the packaging sheet (200) is pulled out of the stocker (41) by the lowering of the suction rod (43) and placed on the belt (42) to release the suction to the sheet.
The belt (42) circulates at the timing when the packaging sheet (200) is placed on the belt (42), and conveys the packaging sheet (200) directly above the rice ball push-up station S3.
At this time, one end side of the packaging sheet (200) is located directly above the rice ball receiving hole (11) at the rice ball push-up station S3 position, and the other end is directed away from the first turntable (1). A packaging sheet (200) is supplied.
The stocker (41) accommodates the packaging sheet (200) with the inner film (205) on the bottom and the outer film (201) on the top.
Therefore, the packaging sheet (200) stands by with the inner film (205) on the lower side at the rice ball push-up station S3.
The stocker (41) is provided with known fall prevention means (not shown) for preventing the fall of sheets other than the lowermost packaging sheet (200) adsorbed by the suction basket (43).
The circulating belt (42) of the packaging sheet supply device (4) is positioned at a height close to the upper surface of the first turntable, and can supply the packaging sheet (200) to a position close to the upper surface of the turntable (1).

Sheet Ear Folding Device As shown in FIG. 1, a second turntable (7) is provided at a position away from the first turntable (1).
In the second turntable (7), a welding station S4 is set at a position closest to the rice turn-up station S3 of the first turntable (1), and the sealing station is moved from the welding station S4 to the turntable rotation direction. S5, labeling station S6, and discharge station S7 are set in order.
A sheet ear folding device (6) is disposed between the rice ball push-up station S3 and the welding station S4.

  The sheet ear folding device (6) moves the rice ball (401) pushed upward from the accommodation hole (11) of the first turntable (1) by the push-up member (33) to the welding station S4 side ( A projecting block (5) projecting downstream), a guide plate (61) for guiding the onigiri to project toward the second turntable (7), and a projecting block (5) projecting above the guide plate (61). An auxiliary guide plate (62) arranged in parallel with the guide plate (61) with a gap slightly larger than the thickness in the vertical direction, and a protruding block arranged in parallel with the plate above the auxiliary guide plate (62) (5) The first and second plates disposed on both sides of the transition path of the rice ball (401) between the mounting plate (54) slidably supported and the guide plate (61) and the auxiliary guide plate (62). The second and third ruler plates 63, 64 and 65 are used.

As shown in FIGS. 3 and 4, the guide plate (61) and the auxiliary guide plate (62) are formed with openings corresponding to the push-up transition path of the push-up member (33), and the guide plate (61) is opened. The edge (61a) on the second turntable (7) side of the part is close to the push-up transition path.
The upstream end of the mounting plate (54) extends to the rotation center side of the first turntable (1) beyond the rice ball push-up station S3.
The mounting plate (54) supports both ends of parallel guide shafts (55) (55) extending from the rice ball push-up station S3 to the welding station S4.
A projecting block (5) is slidably disposed on the guide shaft (55) through a slide block (53). The protruding block (5) is detachably attached to the slide block (53) by bolting or the like.
As shown in FIG. 5, the slide drive device 56 is linked to the protruding block 5.
The slide drive device (56) is a screw shaft (56a) arranged in parallel with the guide shaft (55) and screwed into the slide block (53), and the screw shaft (56a) is a rotational drive device such as a servo motor. The slide block (53), that is, the protruding block (5) is slid and moved by screw thrust generated by forward and reverse rotation of the screw shaft (56a).

As shown in FIG. 5 and FIG. 15, the protruding block (5) has a triangular accommodating portion (51) for accommodating a rice ball in a rectangular flat block having a thickness corresponding to the thickness of the rice ball (401). Is formed. The accommodating part (51) is open to the up-down direction and the 2nd turntable (7) side.
On both side surfaces (50) and (50) along the projecting direction of the projecting block (5), shallow recess portions (52) for welding a collar portion (302) of the bag (300) described later are formed.
The recess (52) has a substantially T-shape with a short vertical groove (52a) on the downstream side and a horizontal groove (52b) extending long from the center of the vertical groove to the upstream side.
The thickness Y1 on both sides of the accommodating portion (51) of the protruding block (5) is shown in FIG. 16 and corresponds to the left and right margin Y2 of the bag (300) with respect to the rice ball (401) as will be described later.
The protruding block (5) approaches the push-up transition path of the push-up member (33) and stands by from the transition path to the first turntable (1) rotation center side, and the screw shaft (56a). When it rotates forward, it moves downstream along the guide plate (61) across the push-up transition path.
The auxiliary guide plate (62) protrudes and the transition path portion of the block (5) is opened. The opening is supported by the mounting plate (54) at both ends, and is a wire-shaped or belt-shaped guide member (59). Is stretched.
The height of the guide member (59) is equal to the height of the upper surface of the protruding block (5), the guide member itself is stretchable, or one end of the guide member is pulled through a spring (not shown). ing.
As shown in FIG. 15, the guide member (59) is stretched to such a height that the upper surface of the protruding block (5) is in sliding contact with the hole (53a) opened in the slide block (53) with a margin. Has penetrated.

7 and 8, between the guide plate (61) and the auxiliary guide plate (62), on the both sides of the transition path of the rice ball (401), the first, second, The third three ruler plates (63), (64) and (65) are arranged in order from the first turntable (1) side to the second turntable (7) side (from the upstream side to the downstream side).
As shown in FIG. 7, the upstream first ruler plate (63) is fixed to the guide plate (61) by a mounting plate (63b) extending outward from the lower edge of the plate (63).
As shown in FIG. 8a, between the upper edge of the first ruler plate (63) and the auxiliary guide plate (62) and between the lower edge of the first ruler plate (63) and the guide plate (61). The gaps x1 and x1 are formed through which the upper and lower ears (200a) and (200b) of the packaging sheet (200) covered with the rice balls (401) can pass.
As shown in FIG. 8f, the upstream end of the first ruler plate (63) is bent slightly outward, and as shown in FIG. 8b, the upper and lower ends of the bent portion are the ears (200a) (200b) of the packaging sheet (200). ) Are formed in the inclined guide edges (63a) and (63a).

The next second ruler plate (64) is fixed to the auxiliary guide plate (62) by a mounting plate (64b) extending outward from the upper edge of the plate. A gap x2 is formed between the lower edge of the second ruler plate (64) and the guide plate (61) through which the lower ear portion (200b) of the packaging sheet (200) can pass.
The upstream portion of the second ruler plate (64) overlaps the outside of the first ruler plate (63), and the upper ear portion (200a) of the packaging sheet (200) is bent downward at the overlap portion. A gap x4 that can pass through is formed.
As shown in FIG. 8d, the upstream end of the second ruler plate (64) is formed with an inclined edge (64a) that is inclined so that the upstream side gradually approaches the auxiliary guide plate (62).

The third ruler plate (65) is fixed to the guide plate (61) by a mounting plate (65b) extending outward from the lower edge of the plate.
The upstream side portion of the third ruler plate (65) overlaps the outside of the second ruler plate (64), and the overlapping portion, as shown in FIG. 8f, is the lower ear portion (200a) of the packaging sheet (200). Is formed on the side surface of the block (5) so that it can pass in a bent state.
As shown in FIG. 8e, the upstream end of the third ruler plate (65) is formed with an inclined edge (65a) that is inclined so that the upstream side gradually approaches the guide plate (61).

As shown in FIGS. 7 and 8f, on the upstream side of the first ruler plate (63), a shaft-shaped baffle member (60) (60) is interposed between the auxiliary guide plate (62) or the guide plate via the support member (60a). (61) fixed. The baffle member (60) is at an intermediate position between the guide plate (61) and the auxiliary guide plate (62), and the inner ends of the baffle members (60) are close to the transition path of the rice ball (401).
Each ruler plate (63) (64) (65) and the baffle member (60), the ruler plates (63) (64) (65) on the opposite side across the protruding transition path of the rice ball (401) and the baffle member ( It is possible to form a projecting transition path corresponding to the size of the projecting block (5) projecting the rice ball (401).
Also, the distance between the guide plate (61) and the auxiliary guide plate (62) can be adjusted according to the set thickness of the triangular rice ball (401).

As shown in FIG. 1, eight food holding frames (71) are arranged at equal intervals on the outer periphery of the second turntable (7), and the second turntable (7) is a rotary drive device (see FIG. 1). (Not shown), and the adjacent food holding frames (71) (71) are intermittently rotated by one pitch, with one pitch being defined as one pitch.
As shown in FIG. 10, FIG. 11, and FIG. 14, the food holding frame (71) is formed in a U-shape, and the opening is directed outward in the radial direction of the second turntable (7).
Leaf springs (70) and (70) are arranged on the left and right of the upper surface opening of the food holding frame (71).
The food holding frame (71) on the welding station S4 is a protruding block including a rice ball (401) when the protruding block (5) reaches the second turntable (7) beyond the guide plate (61). (5) is formed so as to be acceptable in a state with almost no margin.
T-shaped slots (73) are opened on both side plates (72) and (72) of the food holding frame (71) corresponding to the T-shaped recesses (52) on both sides of the protruding block (5). ing.
On the back plate (74) of the food holding frame (71), a cutout (75) for discharging packaged rice balls is provided.
Both side plates (72), (72) of the food holding frame (71) stopped at the welding station S4 are on the extension of both third ruler plates (65, 65) of the sheet ear folding device (6). , Close to the third ruler plate (65) (65).

As shown in FIGS. 9 to 12, a flanged presser shaft (701) penetrates the second turntable (7) at the approximate center in each food holding frame (71) of the second turntable (7). And is slidable in the vertical direction.
The upper part of the presser shaft (701) is sunk in the second turntable (7) so as to be aligned with the upper surface of the second turntable (7), and the lower end is formed into a spherical surface.
Below the turntable (1), an arcuate cam (702) with which the presser shaft (701) can be slidably contacted is provided from the welding station S4 to the sealing station S5.
When the second turntable (7) rotates and the presser shaft (701) moves from the welding station S4 to the sealing station S5, the presser shaft (701) moves from the valley surface (703) of the cam (702). Moved to the mountain surface (704) and lifted. Thus, as will be described later, when the triangular rice ball (401) contained in the bag (300) is stored in the food holding frame (71) and moved to the sealing station S5, it is turned sideways by the presser shaft (701). By pushing up the lower surface of the triangular rice ball (401), the triangular rice ball (401) is sandwiched between the outside of the bag (300) by the spring (70) (70) and the presser shaft (701), and the triangular rice ball (401 ) Can be prevented from moving outward together with the bag (300).
When the presser shaft (701) passes through the cam (702), it returns to its original position by its own weight.
On the upper surface of the presser shaft (701), a layer (not shown) of a material that does not slip easily with respect to the film, such as silicon rubber, is formed.

A welding device (8) is provided on the welding station S4.
The welding apparatus (8) has two slide plates (82) and (82) facing each other so as to be able to approach and separate from each other with the food holding frame (71) sandwiched between the lift plate (81) and the two slide plates (82). A heater block (87) (87) is attached to the lower end of (82).
The heater blocks (87) and (87) include a heater swelled in a T shape corresponding to the groove (73) of the food holding frame (71) and the recess (52) on the side of the protruding block (5). A surface (88) is formed.
The two slide plates (82) and (82) are shifted from each other so as to project a shaft (83) toward the mating slide plate (82), and the shaft (83) is a bifurcated tip of the lifting platform (81). And the other slide plate (82).
Rack surfaces (84) and (84) are formed opposite to each other at the center of both shafts (83) and (83), and a common pinion gear (85) is engaged with both rack surfaces (84) and (84). .
As shown in FIG. 1, the lifting / lowering table (81) moves up and down by being linked to a lifting / lowering shaft (76) provided through the rotation center of the second turntable (7) so as to be movable up and down.
The cylindrical elevating shaft (76) is provided with a rotating shaft (77) that can be moved up and down integrally with the shaft and rotatable with respect to the shaft, and two sets of bevel gears are provided on the rotating shaft (77). The pinion gear (85) is linked through a rotation transmission mechanism (86) using the.
A lift drive device (not shown) such as a cylinder is connected to the lift shaft (76), and a rotation drive device (not shown) is connected to the rotary shaft (77).
The rotation of the pinion gear (85) causes the shafts (83) and (83) to slide in opposite directions to bring the slide plates (82) and (82) closer to or away from each other.
In the welding station S4, a lifting member (707) for the presser shaft (701) is provided. The push-up member (707) of the embodiment is a piston rod (706) of the air cylinder (705), and penetrates the valley surface (703) of the cam (702) from below.
The upper end of the push-up member (707) waits in line with the valley surface (703) of the cam (702), and, as will be described later, a bag-shaped triangular rice ball (401) is inserted into the food holding frame (71) and protrudes. When the block (5) comes out of the bag (300), the push-up member (707) rises slightly.

Bag Opening Sealing Device As shown in FIG. 9, the sealing device (9) is provided at the sealing station S5 on the second turntable (7). As will be described later, the sealing device (9) performs an operation of closing the opening (301) of the bag (300) formed by welding the folded portion of the ear portion of the packaging sheet (200) at the welding station S4. It is.
As shown in FIGS. 11, 12, and 13, the sealing device (9) has a pair of vertically movable holding plates (91) and (93) opposed to each other on the outside of the second turntable (7). The drive cylinders (92) and (94) are connected to the presser plates (91) and (93), respectively.
Both pressing plates (91) and (93) face each other across the opening edge of the bag (300) protruding from the food holding frame (71) stopped at the sealing station S5.
An elastic plate (91a) such as a rubber plate that receives the opening edge of the bag (300) is attached to the lower presser plate (91).
The upper presser plate (93) has a slot (93a) at a position facing the elastic plate (91a).
An elevating plate (95) is provided above the upper presser plate (93), and a plate heater (96) that can enter the slot (93a) of the upper presser plate (93) projects into the elevating plate (95). Established.
The upper presser plate (93) is connected to the cylinder (97) and moves up and down independently.
On both sides of the presser plate (91), push-in members (98) (98) connected to the cylinders (99) (99) are arranged to be able to advance and retreat.
As shown in FIG. 9, the pushing members 98 and 98 are provided at an angle of about 45 ° with respect to an imaginary line L connecting the rotation center of the second turntable 7 and the sealing station S5. ing.
When sealing the opening (301) of the bag (300), the pushing members (98) and (98) can be advanced to push the opening (301) side of the bag collar (302) and fold it inward.
If sealing and welding is performed over the entire length of the opening (301) of the bag (300), it is difficult to divide the outer film (201) of the packaging sheet (200) when divided into two parts by the severable part (202). Therefore, at least a portion corresponding to the separable portion (202) is not welded.

Rice Ball Discharge Device As shown in FIGS. 9 and 14, a discharge device (100) for discharging the packaged rice balls from the food holding frame (71) is arranged at the discharge station S7 on the second turntable (7).
The discharging device (100) connects the protruding member (101) to the cylinder (103) via the connecting plate (102), and the cylinder (103) drives the protruding member (101) to reciprocate, thereby protruding the protruding member (101). The front end of the food holding frame (71) is inserted into the food holding frame (71) from the notch (75) of the back plate (74) of the food holding frame (71), and the packaged rice balls held on the food holding frame (71) are removed from the food holding frame (71). 71) protrudes outward.

Next, the operation from the formation of rice balls from cooked rice to the packaging of rice balls with the packaging sheet (200) and the discharging thereof will be described.
As shown in FIGS. 1 and 3, at the three charging stations S1, S1, S1 of the first turntable (1), a triangular rice ball (401) is manually inserted into the rice bowl receiving hole ( 11).
As shown in FIG. 4, every time the rice ball receiving hole (11) is positioned at the thickness adjusting station S2 by intermittent rotation of the first turntable (1), the pressing members (31), (32) of the thickness adjusting device (3). Approach each other, sandwich the triangular rice ball (401) in the accommodation hole (11), and make the thickness of the triangular rice ball (401) uniform.

Operation to put the packaging sheet on the rice balls (steps of FIGS. 22a to 22c)
As shown in FIG. 4, the push-up member (33) rises while passing between the belts (42) and (42) of the packaging sheet supply device (4). As a result, the rice ball (401) hits the lower surface of the packaging sheet (200) waiting on the belt (42) (42) and lifts the sheet.
As shown in FIG. 3, the packaging sheet (200) stands by so that one end is on the push-up station S3 and the other end is on the second turntable (7) side. As the rice ball (401) rises, the upper surface of the packaging sheet (200) covers the upper surface of the rice ball (401), and the downstream side of the packaging sheet hangs down from one side facing the second turntable (7) side of the rice ball (see FIG. 4, FIG. 8a, FIG. 22b).
In the embodiment, as shown in FIG. 4, the push-up member (33) once rises higher than the guide plate (61) of the sheet ear folding device (6), and then the lower surface of the rice ball (401) is guided. It is set so as to be lowered to a position aligned with the height of the plate (61). This is because the edge of the packaging sheet (200) on the protruding block (5) side protrudes and covers the upper surface of the block (5). If the edge of the packaging sheet (200) is sandwiched between the rice ball and the protruding block (5), the ear of the packaging sheet (200) described later cannot be folded smoothly.

When the rice ball (401) rises to the maximum, the rice ball (401) pushes up the guide member (59), but if the lower surface of the rice ball (401) is lowered so that it is aligned with the upper surface height of the guide plate (61), the guide The member (59) also returns to the original straight tension state, and prevents the portion of the packaging sheet (200) that covers the top surface of the rice ball (401) from being lifted.
While the lower surface of the rice ball (401) is aligned with the height of the upper surface of the guide plate (61), the protruding block (5) moves forward to the second turntable (7) side (downstream side).
As the protruding block (5) moves forward, the rice ball (401) is fitted into the accommodating portion (51) of the protruding block (5), and in this state, the rice ball (401) slides on the guide plate (61) and is conveyed downstream. Is done. The portion of the packaging sheet (200) hanging from the rice ball (401) hits the edge (61a) of the guide plate (61) and is drawn between the rice ball (401) and the guide plate (61). As a result, the lower surface of the rice ball (401) also covers the packaging sheet (200).
That is, the rice ball (401) is sandwiched between the packaging sheets (200) bent in a substantially U shape with both ends directed upstream (FIGS. 8b and 22c).

The operation of folding the packaging sheet ears (steps of FIGS. 22d to f)
Further, when the rice ball (401) advances downstream, both ends of the bent portion of the packaging sheet (200) hit the pin-shaped baffle member (60) and are folded inside, that is, on the side of the protruding block (5) ( FIG. 8b, FIG. 22d).
When the rice ball (401) further advances, the upper and lower ears (200a) and (200b) of the packaging sheet (200) enter the upper and lower gaps x1 and x1 of the first ruler plate (63) as shown in FIG. 8c.
Next, the upper ear portion (200a) of the packaging sheet (200) on the way forward is brought into contact with the inclined edge (64a) of the second ruler plate (64) and folded downward. The folded ear portion (200a) passes through the gap x4 between the first ruler plate (63) and the second ruler plate (64).
Next, the lower ear portion (200b) of the packaging sheet (200) passes through the gap x2 between the second ruler plate (64) and the guide plate (61), and the inclined edge of the third ruler plate (65). When hitting (65a), it is folded upward so as to cover the second ruler plate (64).
The folded ear part (200b) passes through the gap x5 between the second ruler plate (64) and the third ruler plate (65).
When the rice ball (401) passes through the second ruler plate (64), the ears (200a) and (200b) overlap on the side of the protruding block (5), and the packaging sheet (200) is placed on the film ear ( It has a bag shape in which the overlapping portion of 200a) and 200b) has a collar portion (302).
The rice ball (401) is accommodated in the accommodating portion (51) of the protruding block (5), and the packaging sheet (200) is covered in a bag shape on the rice ball (401) and the protruding block (5). It is delivered to the food holding frame (71) waiting at the welding station S4 of 7).

Welding operation of both ears of the bag (step of FIG. 22f)
As shown in FIG. 10, the welding device (8) is lowered, and the left and right heater blocks (87) and (87) are positioned outside the both side plates (72) and (72) of the food holding frame (71).
The pinion gear (85) rotates and the heater blocks (87) and (87) approach each other, and the T-shaped heater surface (88) on the heater block (87) is attached to the side plate of the food holding frame (71) ( 72) enters the slot (73), and heats and welds (304) the overlapping portion of the packaging sheet ears (200a) and (200b).
A T-shaped recess (52) is formed on the side surface of the protruding block (5) on which the sheet ears overlap, corresponding to the heater surface (88), and the heater surface (88) is formed in the recess ( 52), the sheet ear can be strongly welded (304) in a T-shape corresponding to the T-shaped heater surface (88).
The packaging sheet (200) is formed into a bag (300) whose outer end is opened by welding both ears.

Since the bag (300) is formed in a state where the packaging sheet (200) protrudes and covers the block (5), the thickness Y1 on both sides of the rice ball container (51) of the protruding block (5) shown in FIG. As shown in FIG. 16, this corresponds to the left and right margin Y2 of the bag (300) with respect to the rice ball (401).
The pinion gear (85) of the welding device (8) rotates in the opposite direction, the heater blocks (87) and (87) are separated from the food holding frame (71), and the welding device (8) The lift of 81) lifts to a position higher than the food holding frame (71).
The protruding block (5) comes out of the opening (301) of the bag (300) and returns to the upstream standby position.
When the protruding block (5) escapes from the bag (300), the push-up member (707) shown in FIG. 11 is slightly raised. Thus, although the presser shaft (701) is not positioned at the peak (702) of the cam (702), it is pushed up by the presser member (707), and the springs (70) (70) and the presser shaft ( 701) sandwiches the triangular rice ball (401) and the bag (300), and only the protruding block (5) can smoothly escape from the bag (300).
The food holding frame (71) holds the rice balls (401) contained in the bag (300), and the opening edge of the bag (300) protrudes outward from the outward opening of the food holding frame (71). .

Bag opening sealing operation (step of FIG. 22g)
As shown in FIG. 12, when the food holding frame (71) stops at the sealing station S5 by the rotation of the second turntable (7), the left and right pushing members (98) (98) are moved to the food as shown in FIG. Advance toward the holding frame (71). The pushing members (98) and (98) pass through the slot (73) of the food holding frame (71) and push the bag opening side of the bag collar (302) inward to dent the collar (302).
In the above state, the lower presser plate (91) of the sealing device (9) is raised, the upper presser plate (93) is lowered, and the opening edge of the bag (300) is blocked by the presser plates (91) (93). Pinch.
While maintaining the above state, the elevating plate (95) is lowered, the plate heater (96) on the elevating plate (95) passes through the slot (93a) of the upper presser plate (93), and the bag (300) The opening edge of is thermally sealed and sealed.
The pressing members (98) and (98), the lifting plate (95), and the upper and lower pressing plates (91) and (93) return to their original positions.
While the triangular rice ball (401) moves from the welding station S4 to the sealing station S5, the triangular rice ball (401) and the bag (300) are displaced from the food holding frame (71) by the centrifugal force. For example, the position of the heat welding of the opening edge of the bag (300) varies.
In the case of the embodiment, as described above, the triangular rice ball (401) moves from the welding station S4 to the sealing station S5 while being sandwiched between the springs (70) and (70) and the presser shaft (701). The triangular rice ball (401) and the bag (300) are not displaced relative to the holding frame (71). Therefore, the welding position of the opening edge of the bag (300) is constant.

Labeling and rice ball discharge process While the food holding frame (71) is stopped at the labeling station S6, a quality label labeled with the date of rice ball production is printed on the bag by an automatic labeling device (not shown). Paste from the top of (300).

Next, when the food holding frame (71) stops at the discharge station S7, the cylinder (103) of the discharge device (100) shown in FIG. 14 operates to protrude the protruding member (101) outward, and the protruding member (101 ), The packaged rice balls are discharged outside from the outer opening of the food holding frame (71).
Each time the second turntable (7) rotates one pitch, the packaged rice balls are discharged from the food holding frame (71) on the discharge station S7.
If the second turntable (7) rotates at one pitch between the time when the protruding member (101) protrudes the packaging rice ball (401) and returns to the original position, the protruding member (101) At the time of return, the protruding member (101) collides with the food holding frame (71) or the rice ball inside the frame. Therefore, in this case, the entire discharge device (100) is raised and lowered by a cylinder (not shown) or the like, and when the rice ball (401) protrudes, the discharge device (100) is lowered and when the protruding member (101) returns. By raising the discharging device (100), it is possible to avoid a collision between the protruding member (101) and the food holding frame (71) or the rice balls in the frame.

Next, packaging rice balls will be described.
Packaging rice balls Packaging rice balls are packaged as described above, so the cut tape (203) of the outer film (201) of the packaging sheet (200) forming the bag (300) is removed from the top of the rice ball (401). It passes through the center of the opposite side, wraps around the back of the rice ball, and returns to the top again.
In the state where the rice ball (401) is packaged, the sheet-like seaweed (206) of the packaging sheet (200) is blocked from the rice ball (401) by the inner film (205) and from the outside air by the outer film (201). Therefore, the flavor and texture of seaweed can be maintained without being affected by rice balls (401) or the humidity of the outside air.

To unwrap the onigiri when you eat a rice ball , with one hand, lightly grasp the rice ball (401) from the top of the bag with one side of the bag (300) centered on the cut tape (203). Hold. The tip of the cut tape (203) is picked with the other hand and pulled to the other end side along the longitudinal direction of the cut tape (203) (see FIG. 23a). The cut tape (203) is separated from the packaging bag (300), and the packaging bag (300) is divided into two.

Pull the end of the bag (300) outward with the hand that has torn the cut tape (203).
Half of the outer film (201) and one film piece (205a) of the inner film (205) welded to the outer film of the half are pulled out, and half of the sheet-like seaweed (206) is exposed (FIG. 23b). ).
Hold the rice ball (401) from above the exposed sheet-like seaweed (206) with the hand that pulled one side of the packaging bag (300), and pick the edge of the remaining half of the bag with the other hand, Pull on.
The packaging bag (300) is completely removed from the rice ball (401), and only the sheet-like seaweed (206) remains and covers the rice ball (401).
You can eat rice balls (401) covered with fresh sheet-like seaweed (206).
As shown in FIG. 23b, in a state where half of the packaging bag (300) is covered with a rice ball, if the rice ball is grabbed and eaten from above the half of the packaging bag, the rice ball is not touched directly and is sanitary. It is.

  As the packaging rice ball can tear the central part of the packaging bag (300) in the width direction with the cut tape (203), always hold the rice ball (401) by hand when unpacking as described above. It is possible to prevent the rice balls from dropping from the bag as soon as the packaging bag (300) is split into two as in the prior art.

Other Embodiments FIG. 17 shows another embodiment of the protruding block (5), and the thickness of both sides of the front opening of the rice ball accommodating portion (51) is 0 or close to zero.
In this case, as shown in FIG. 18, the rice ball (401) has no room to move left and right within the bag (300).
The fact that the rice ball (401) can hardly move in the packaging bag (300) means that the packaging bag (300) serves as a protective member for maintaining the shape of the rice ball (401), and the inside of the packaging bag (300). This can prevent the rice ball (401) from being broken.
Also, if the packaging bag (300) accommodates the rice balls (401) in a state where there is little room to move, the bulk of the packaging rice balls can be minimized, and the number of packaging rice balls displayed per unit area of the rice ball display case can be reduced. Can be increased.

24 and 25 show another embodiment of the severable portion (202) of the outer film (201) of the packaging sheet (200).
FIG. 24 shows an embodiment using two cut tapes (203) (203).
Short cuts (204) are made on the outside of both cut tapes (203).
When the tips of the cut tapes (203) and (203) are picked and pulled, the film tears from the cuts (204) and (204), and the outer film (201) can be divided into two.
In FIG. 25, the outer film (201) is formed of a directional film that is easily torn in the longitudinal direction, and small cuts (204) and (204) are given to the ends of the film.
When the notches (204) and (204) are picked and pulled, the film can be split and separated by the width between the notches (204) and (204).
In addition to the above, the severable portion (202) of the outer film (201) can be divided into two parts without using a tool, such as intermittent cuts called so-called perforations. Absent.

FIG. 28 shows another embodiment in which two baffle members (59a) and (59a) for the packaging sheet (200) are arranged on the left and right sides of the push-up transition path of the push-up member (33).
The baffle member (59a) is formed in a band shape and a shaft shape, approaches the left and right of the rice ball (401) on the push-up member (33), and the free end (59a ′) faces the downstream side so that the guide plate (61 ) Is fixedly deployed. The height of the baffle member (59a) is preferably lower than the upper surface of the guide plate (61).
When the push-up member (33) pushes up the rice ball (401) in the mold hole (31) and covers the upper surface of the rice ball (401) with the packaging sheet (200), the rice ball (401) of the packaging sheet (200) is lifted. ), The left and right ears on one end are pressed by the baffle members (59a) (59a), preventing the packaging sheet (200) from being displaced on the rice ball (401) before reaching the rising end. it can.
It is also possible to fix and attach the baffle member (59a) to the hanging portion at the upstream end of the mounting plate (54).

In the present invention, the food (400) contained in the packaging bag (300) is not limited to the triangular rice ball (401), but other shapes such as stick-shaped rice, other shapes such as a lump of rice, a flat circle, a flat square, etc. Can be used for packaging of food (400). It is possible to replace the first turntable (1) with one having an accommodation hole (11) corresponding to the shape of the food (400) to be packaged. In this case, the food push-up member (33) and the protruding block (5) may be replaced if necessary. The food push-up member (33) has a shape whose upper end surface corresponds to the bottom opening of the accommodation hole (11), and the protruding block (5) has the housing portion (51) of the block stably containing food. Replace the shape that can be done.
If necessary, the thickness adjusting device (3) may also replace the pressing members (31) and (32) with those corresponding to the shape of the food.
Furthermore, the size of the packaging sheet (200) may be appropriately determined according to the size of the food.

In the case of the embodiment, since the first turntable (1) is divided into two, even if a part of the packaging sheet supply device (4) partially covers the first turntable (1), the rotating shaft ( You can remove the half of the first turntable (1) from 13), then rotate the other half to the opposite side and remove it.
FIG. 39 shows a horizontally long accommodation hole (11) of the first turntable (1), a food push-up member (33) corresponding to the accommodation hole (11) when packaging a short stick-shaped rice (402), The example of the protrusion block (5) which has the accommodating part (51) corresponding to a stick-shaped rice (402) is shown.

  The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

  The sheet-like food (207) in the packaging sheet (200) is not limited to the sheet-like seaweed (206), but the packaging sheet (200 ) Can be folded and formed into a bag (300).

FIG. 29 shows another embodiment of the guide plate (61) and the auxiliary guide plate (62) of the sheet ear folding device (6).
A lifting device (500) (500) and two leaf springs (504) (504) for lifting the upstream end of the packaging sheet (200) and two leaf springs (504) (504) are arranged at both ends on the upstream side of the auxiliary guide plate (62). The lifting device (500) is formed by projecting a substantially L-shaped arm (503) on the rotating shaft (502) of the control motor (501).
As shown in FIGS. 30 and 31, at the timing when the push-up member (33) pushes the rice ball (401) from the mold hole (31) of the first turntable (1) toward the guide plate (61). At the same time, the arm (503) rotates 90 ° inward so as to cross the transition path of the protruding block (5), protrudes the upstream end of the packaging sheet (200), and is slightly above the height of the upper surface of the block (5). Lift up. The packaging sheet (200) is sandwiched between the arm (503) and the leaf springs (504) (504).
In the above case, the upstream end of the packaging sheet (200) protrudes by the push-up member (33) even if it is lifted so that the lower surface height of the rice ball (401) is aligned with the upper surface height of the guide plate (61). It can be held above the transition path of the block (5). For this reason, as shown by a two-dot chain line in FIG. 30, the upstream end of the packaging sheet (200) on the rice ball (401) is prevented from hanging down at the push-up position of the rice ball (401). Accordingly, when the protruding block (5) protrudes the rice ball (401) to the downstream side, it is possible to prevent the trouble of biting the upstream end of the packaging sheet between the rice ball (401) and the protruding block (5).

Instead of the wire-shaped guide member (59), the auxiliary guide plate (62) has a groove-shaped opening (62a) in the center of the width of the guide plate. Is deployed.
On the lower surface of the guide member (59), a protrusion (59b) having a height of about 1 mm and a width of about 8 mm is formed downstream from the raised position of the rice ball (401).
On the guide plate (61), a similar protrusion (61b) is formed facing the protrusion (59b) of the guide member (59).
When projecting the rice ball (401) to the downstream side by the protruding block (5), the protrusions (59b) (61b) sandwich the rice ball (401) from the top of the packaging sheet (200) covered with the rice ball (401). Press on. For this reason, it is possible to prevent the packaging sheet (200) from being displaced with respect to the rice ball (401) while the rice ball (401) protrudes downstream.

FIG. 33a shows a state in which the opening and sealing portion (303) of the packaging bag (300) is welded and sealed with a deviation between the front side and the back side of the bag. In this case, the appearance as a product deteriorates.
As shown in FIG. 33b, if the tip of the opening sealing portion (303) is cut over the entire length, the appearance is improved.
FIG. 34 shows a cutting device (600) for cutting the opening sealing portion (303) of the packaging bag (300). The cutting device (500) is arranged at a station adjacent to the welding station S5 of the second turntable (7) shown in FIG. 1 in the rotational direction of the second turntable (7).
In the above description, the station adjacent to the rotation direction of the second turntable (7) is the labeling station S6. However, when the cutting device (600) is provided, the labeling station S6 and the discharge station S7 are It is only necessary to shift the pitch by one pitch in the rotation direction of the second turntable (7).

As shown in FIG. 34, the cutting device (600) includes a fixed blade (601) and a movable blade (602) outside the stop position of the food holding frame (71).
The movable blade (602) is attached to a lifting platform (604) that is moved up and down by the cylinder device (603), and seals the packaging bag (300) that protrudes from the food holding frame (71) when passing the fixed blade (601). The tip of the stop (303) can be cut over the entire length.
On the lifting platform (604), a presser member (605) is disposed in sliding contact with the movable blade (602) and biased downward by a spring (606).
Before the movable blade (602) descends and cuts the sealing portion (303) of the packaging bag (300), as shown in FIG. 36, the holding member (605) holds the sealing portion (303) to the fixed blade ( 601). Thereby, the sealing part (303) can be cut cleanly.
On the back surface of the fixed blade (601), a suction recovery rod (607) having an upper surface opening is provided, and the cut waste (303a) of the cut sealing portion (303) can be recovered.

FIG. 37 shows another embodiment in which a V-shaped groove row (601a) (602a) is formed on the fixed blade (601) and the movable blade (602) so that the grooves and the mountain are engaged with each other. Yes. In this case, as shown in FIG. 38, the sealing portion (303) of the bag (300) can be cut into a shape in which the V-shaped cuts (303a) and (303a) are continuous, and the aesthetic appearance of the cut portion is improved. Furthermore, when the outer film (201) that is easily torn in the longitudinal direction of the packaging sheet (200) described in FIG. 25 is used, the notches (204) and (204) of the outer film (201) shown in FIG. 25 are not necessary. . This is because the V-shaped cuts (303a) and (303a) serve as the cuts (204) and (204).
The step of making the cuts (204) (204) in the outer film (201) can be omitted.

Needless to say, the present invention can be implemented by packaging food with a single packaging sheet (200).
Needless to say, the food (400) can be automatically loaded into the accommodation hole (11) of the first turntable (1) by an automatic machine.

It is a perspective view of a packaging apparatus. It is a perspective view of the state which removed the 1st turntable from the rotating shaft. It is sectional drawing of a 1st turntable. It is explanatory drawing of the state which the food push-up member pushed up the rice ball. It is a perspective view of a sheet | seat ear | edge part folding apparatus. It is the perspective view which looked at the sheet | seat ear | edge part folding apparatus from the other direction. It is a perspective view which shows the arrangement | sequence state of a 1st, 2nd, 3rd ruler board. It is explanatory drawing of the process of folding the ear | edge part of a packaging sheet with three ruler plates. It is a top view which shows the positional relationship of each station on a 2nd turntable. It is a slope view of a welding apparatus. It is a perspective view of a sealing device. It is a side view same as the above. It is a side view of the state which pinched the opening edge of the bag with the upper and lower pressing plates of the sealing device. It is a slope view of a discharge device. It is a perspective view of a protruding block. It is a front view of the packaging rice ball which accommodated the rice ball in the bag in the state which has room on either side. It is a perspective view of the other Example of a protrusion block. It is a front view of the packaging rice ball which accommodated the rice ball in the bag without the allowance in the right and left. It is a slope view of a packaging sheet. It is sectional drawing which follows FIG. 19A-A line. It is a disassembled slope view of a packaging sheet. It is explanatory drawing of a packaging procedure. It is explanatory drawing of the procedure which unpacks. It is a perspective view of the other Example of a packaging sheet. It is a perspective view of another Example of a packaging sheet. It is a slope view of the conventional packaging triangular rice ball. It is a slope view of the conventional bag packaging rice ball. It is a perspective view of the other Example which provided the baffle member in the guide plate. It is a perspective view of the other Example of a guide plate and an auxiliary guide plate. It is a side view of the state which raised the upstream end of the packaging sheet with the lifting apparatus. It is a rear view same as the above. It is a rear view of the state which pressed the rice ball with the protrusion of each of the guide member and the guide plate. a figure is sectional drawing which shows the state from which the height of the front side and back side of the opening sealing part of a packaging bag has shifted | deviated, b figure is sectional drawing which shows the state which cut | disconnected the front-end | tip of the opening sealing part. . It is a slope view of a cutting device. It is sectional drawing of a cutting device. It is sectional drawing of a cutting device when the front-end | tip part of the opening sealing part of a packaging bag is cut. It is a perspective view of other examples of a fixed blade and a movable blade. It is a perspective view of the state which cut the sealing part of the packaging bag into the zigzag. It is a perspective view of other examples of the 1st turntable, a food push-up member, and a protruding block.

Explanation of symbols

1 First turntable 4 Packaging sheet supply device 5 Protruding block
51 Housing part 6 Sheet ear folding device
61 Information board
63 First ruler plate
64 Second ruler plate
65 Third ruler plate 8 Welding device 9 Sealing device
600 cutting equipment

Claims (3)

Putting the food (400) to be packaged into the food containing hole (11) formed in the outer periphery of the turntable (1) arranged to be replaceable;
A packaging sheet supply step of supplying a substantially rectangular packaging sheet (200) above a predetermined stop position of the food containing hole (11) of the turntable (1);
While the food (400) on the turntable (1) is pushed up by the push-up member (33), the lower surface of the packaging sheet (200) waiting at the packaging sheet supply position is pushed up by the food (400). , A process of covering one end of the packaging sheet (200) on the food (400) ,
A flat protruding block (5) having a storage portion (51) which can protrude in the lateral direction at the raised height position of the food (200), can store the food (400) and has an opening on the downstream side, In the process of protruding, the food (400) that hangs down the downstream side of the packaging sheet that is supported and supported by the lifting member (33) in the raised position is accommodated in the accommodating portion (51), and the raised member in the raised position (33) is handed over to the guide plate (61) located on the downstream side, and the portion of the packaging sheet (200) that is hung from the food (400) is the edge of the guide plate (61) on the push-up member (33) side Projecting process to bend it so that it covers the lower surface of food (400)
The length of the packaging sheet (200) protruding from the food (400) during the protrusion of the food (400) by the sheet ear folding device (6) arranged across the protruding transition path of the protruding block (5). Packaging sheet ear folding step of folding both end ears along the direction on the left and right side surfaces along the protruding direction of the protruding block (5);
At the protruding end of the food (400), the food sheet (400) is accommodated in the accommodating part (51) of the protruding block (5), and the folded portion of the packaging sheet ear is welded by the welding device (8). And a welding process for forming the packaging sheet into a bag (300) having an opening at one end,
A food packaging method comprising a sealing step of closing an opening (301) of a bag (300) by welding or the like. A food storage hole (11) is opened at equal intervals on the outer periphery, and a turntable (1) that intermittently rotates to convey the food (400) to the push-up station S3;
A packaging sheet supply device (4) for supplying a rectangular packaging sheet (200) so that one end of the rectangular packaging sheet (200) enters the push-up transition path of the food (400);
With respect to the packaging sheet (200) waiting in a horizontal state at the packaging sheet supply position, the food (400) is pushed up from below the sheet, and one end side of the packaging sheet is put on the upper surface of the food (400), and the other end side is covered. A food push-up member (33) to be suspended;
The food (200) is placed so that it can project laterally at the raised height position of the food (200), and has a storage part (51) that can receive the food (400) and that is open on the downstream side. The food (400) supported on and supported by the push-up member (33) is received in the receiving portion (51) and received by the guide plate (61) located downstream of the push-up member (33) at the raised position. Protrusion that is folded so that the portion of the packaging sheet (200) that hangs down from the food (400) is applied to the edge of the guide plate (61) on the push-up member (33) side so that it covers the lower surface of the food (400) Block (5) ;
Sheet ear folding device that folds both ends of the packaging sheet protruding from the food (400) along the longitudinal direction onto the left and right sides along the protruding direction of the protruding block (5) while the food is protruding. 6) and
Welding which is arranged at the protruding end of the food (400) and welds the overlapping part of the ear part of the packaging sheet (200) in a state where the food (400) is stored in the storage part (51) of the protruding block (5). A device (8);
Sealing device (9) that closes the opening (301) of the bag (300) with the hook and the food (400) formed by welding the overlapping portion of the ear by the welding device (8 )
And
The sheet ear folding device (6) includes a guide plate (61) for guiding the food (400) protruding downstream by the protruding block (5), and a food provided above the guide plate (61). An auxiliary guide plate (62) for preventing the lifting of both end ears along the longitudinal direction of the packaging sheet (200) covering the upper surface of (400), and between the auxiliary guide plate (62) and the guide plate (61) The first, second, and third ruler plates (63), (64), and (65) arranged side by side in the direction of food (400) at
Between the upper edge of the first ruler plate (63) on the upstream side and the auxiliary guide plate (62) and between the lower edge of the first ruler plate (63) and the guide plate (61), food is provided. Gaps x1, x1 through which the upper and lower ears (200a) (200b) of the packaging sheet (200) covered with (400) can pass are formed,
A gap x2 is formed between the lower edge of the second ruler plate (64) and the guide plate (61) to allow the lower ear (200b) of the packaging sheet (200) to pass through, and the second ruler plate (64). The upper part of the sheet overlaps the outside of the first ruler plate (63), and the upper ear part (200a) of the packaging sheet (200) protrudes from the overlapping part and is bent to the side surface of the block (5). A gap x4 that can pass through is formed,
The upstream portion of the third ruler plate (65) overlaps the outside of the second ruler plate (64), and the lower ear portion (200a) of the packaging sheet (200) protrudes from the overlapping portion to the block (5). A gap x5 that can be passed in a folded state is formed on the side surface of
The upstream end of the second ruler plate (64) is formed with an inclined edge (64a) inclined so that the upstream side gradually approaches the auxiliary guide plate (62), and the upstream end of the third ruler plate (65) is An inclined edge (65a) is formed so that the upstream side gradually approaches the guide plate (61),
The turntable (1) and the protruding block (5) are food packaging devices that can be exchanged for those having food containing holes (11) and containing portions (51) corresponding to the shape of the food to be packaged.   A cut that cuts the leading edge of the sealing portion (303) so that the V-shaped incision continues over the entire length in a state where the portion sealed by the sealing device (9) is sandwiched between the pressing members. 3. A food packaging device according to claim 2, comprising a device (600).

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