JPS5945839A - Method and apparatus for packaging triangular rice ball - Google Patents

Abstract

PURPOSE:To cover the upper surface and the three sides of a triangular rice ball at a stroke, by placing a sheet and the rice ball under a guide plate having a triangular hole, and pushing up the sheet together with the rice ball, thereby bending the sheet along the edge of the triangular hole. CONSTITUTION:A sheet S is placed horizontally under the horizontal guide plate 1 having a triangular hole 11 somewhat larger than the contour of the triangular rice ball 9. The rice ball 9 is placed under an end part of the sheet S. The direction of the rice ball 9 is made same to that of the triangular hole 11. The rice ball 9 is pushed up and passed through the hole 11 together with the sheet S. The sheet S is folded downward along the three sides 91, 92, 92 of the rice ball 9 by the edges of the hole. The upper surface and three sides of the rice ball 9 are wrapped with the flaps S2-S4 of the sheet S by this process. The rice ball 9 is then transferred horizontally toward the bottom side as represented by the arrow P, ad the flap S2 dangling from the bottom side is folded along the edge of the hole 11 to the lower side of the rice ball 9. The end parts of the triangular flaps S2 and S3 are folded outside at the same time, and the rice ball is subjected to other three steps to complete the packaging.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for automatically packaging one triangular onigiri, and a packaging device for carrying out the method.

Traditionally, rice balls have been produced in factories and sold over the counter, but in this case, it is necessary to wrap the rice balls in a non-breathable sheet to prevent them from drying out and from getting dusty.

However, in the case of triangular rice balls, there are many surfaces that must be covered with packaging sheets, including the bottom surface and three surfaces, and it is time-consuming and costly to wrap each of these surfaces by manually folding the sheets one after another. There is a problem.

Therefore, the food industry has been looking forward to automating the packaging of triangular rice balls.

In the present invention, a sheet and a triangular rice ball are arranged below a guide plate with a triangular hole, and the triangular rice ball is pushed up together with the sheet, thereby bending the sheet along the edge of the triangular hole, and bending the sheet along the edge of the triangular hole. It covers all at once.

Also, by pulling out the triangular hole and horizontally moving the rice ball to the bottom side, fold the piece (4) hanging from the bottom side over the edge of the hole to cover the bottom surface of the rice ball. After that, both ends of the sheet folds protruding from both sides of the rice ball are folded along both sides of the rice ball, overlapped on the top surface of the rice ball, and fixed with heat welding or adhesive tape to package the triangular rice ball. It is.

The present invention aims to provide a method and apparatus for automatically packaging triangular rice balls, and will be specifically described below based on embodiments shown in the drawings.

FIGS. 11(A) to 11(F) show the automatic packaging method of the present invention for packaging triangular rice balls (9) with rectangular sheets (s).

Sheet 1- (S) is made of non-porous thermoplastic synthetic resin, and its width (WI) is slightly longer than the -side length W2) of the triangular rice ball (9), and the length 11) is the length of the rice ball. It is slightly longer than twice the length of the triangle (j2) plus the thickness of the onigiri.

In addition, the sheet (S) in the example is composed of two films (So) (
It is formed into a bag shape by overlapping the sheets of seaweed (So) and heat-welding the outer periphery, and the sheet-shaped seaweed +90+ is accommodated in the bag.

First, as shown in Fig. 11A, the sheet (S) is placed horizontally below the horizontal guide plate (1) in which the triangular hole (11) is slightly larger than the outline of the triangular rice ball. Place the triangular rice ball (9) on the bottom of the sheet in the direction of the triangular hole (11), bringing it to one end.
) is parallel to the imaginary line (S construction) that divides the triangle rice ball (9) into - at the center of the longitudinal direction.

Next, push up the rice ball (9) and pass it along with the sheet (S) through the triangular hole α1) of the guide plate (1).
+92+ +9 Fold downward along the edge (Figure 11B)
. At this time, the top surface and three sides of the rice ball are the folded pieces of the sheet (
S2), (Sa) and (S4).

Move the triangular rice ball horizontally to the bottom side of the triangular rice ball indicated by the arrow (pl), and insert the folded piece hanging down from the bottom (
Hang S2) on the edge of the triangular hole (11) and make a triangular rice ball (
9) Fold it to the bottom side.

At this time, the tips of the two triangular folded pieces (Sa) (Sa) are folded outward (Fig. 11C).

By folding the rectangular folded piece (S2), the edges (84) (S4) of the sheet protruding from both ends of the - side (91) of the triangular rice ball (9) are folded into the other two sides +→ side (first
Figure 1 D).

Fold both ends of the rectangular folded piece (S2) upward along the two sides of the rice ball (Fig. 11E).

Both ends of the sheet protruding above the top surface of the rice ball (S
4) Overlap (S4) on the rice ball and heat weld the overlapping portion (S6) (FIG. 11F).

” Through step 1, you can beautifully package triangular rice balls.

The packaging device of the present invention automatically carries out the steps in method 1, in which a guide plate (1) for guiding the transfer of rice balls is provided near the downstream side of the base (10), and the guide plate ( 1) Plural through triangular holes fi1) on the 1st stream side and the downstream side respectively
02) has been opened opposite.

Each triangular hole + 11) (121 is one triangular top (13)
is facing upstream, a cut groove (14) is opened further upstream from the top of the upstream side, and a cut groove (14) is opened from the other two tops in a direction perpendicular to the cut groove (14).
5) (15+ has been established.

The straight section connecting both the upstream and downstream triangular holes (Ill (12+) is the transition path for the rice balls.

A sheet conveying device (2) is provided below the guide plate (1). The sheet conveying device (2) is mounted on the base (10).
Parallel rotating shafts f211 (21) are arranged at right angles to the sheet feeding direction slightly downstream of the triangular holes (11) on the flow side and the upstream side of the guide plate (1), respectively, and rotate the rotating shafts (2]). (
A plurality of narrow belts (221+22+) are stretched between the rice balls 21+ and 22+ for each transition path of the rice ball.

A sheet contact piece (23) is provided on the downstream side of the sheet conveying device (2). The corresponding piece (23) is located below the upstream triangular hole (11) of the guide plate (1).
With the rear of (S) in position, move the seat 1! +1
Above the guide plate (1), there are sheet stockers (24) to (24) corresponding to the transfer path of each rice ball.
will be deployed. Each sheet stocker (241 is a sheet (
A feeding belt (26) (26) is stretched endlessly around a wall plate (2 boxes) erected on the guide plate (1) with an interval corresponding to the width of the guide plate (1), and is pushed onto the belt. The board (equity) is fixed.

2. Sheets (Sl are stocked side by side on the feed belt (26) and the feed bell) (2G+ (281 is run by a belt drive device (not shown)
) gradually push it backwards.

The belt drive device operates in response to the decrease in the number of sheets (S) detected by a detection device such as a phototube placed at a suitable location on the stocker (24), and always drives the sheet (S) to a stopper (28) placed at the rear end of the stocker 141. is guessing.

□ Between the stocker (incorporated) sheet conveyance device (2), the sheet (S) is taken out one by one from the stocker (24) and the two belts (22) (22
) A sheet removal device (3) is provided for transporting the sheet upward.

The extraction device (3) is equipped with a suction nozzle (33) at the tip of the arm plate attached to the hollow rotating shaft (31).
2) Connect the flexible pipe (341 and duct l-(35
It is connected to the blower (36+) via +.

A switching valve (3η) is provided in the pipe (3411, and the switching valve (371 operates in conjunction with the ups and downs of the arm plate (321).
When the arm plate (321 is raised toward the stocker (2Φ side), the nozzle (33) and the blower (36) are in communication, and the seat (S
) is sucked and falls backward, and the sheet (S) is transferred to the conveyor device (2
), the switching valve (37) switches to connect the blower +36) and the flexible pipe (34) to the outside air, respectively, and the nozzle (3)
3) Break the vacuum to release the sheet (S).

Onigiri conveying device (4) below the sheet conveying device (2)
will be deployed.

The rice ball conveying device (4) is constructed by installing parallel chains (41+ +41+) along the rice ball transfer path of the guide plate (1), and placing frame plates (42) closely spaced between the guide plates (41+ +41+). It is formed by attaching it.

Triangular saucer portions (431 (43)) (431 (43)) are formed on each frame plate (431) corresponding to the arrangement pitch of the triangular holes (1j) on the first stream side of the guide plate (1). A penetrating portion (4(a)) is formed on the bottom surface of the saucer portion (43) to a size that prevents the rice balls from falling.

The rice ball conveying device (4) is an intermittent rotation drive device (45
1, and a triangular hole (1) on the upstream side of the guide plate (1).
1), the conveying device (
4) stops and performs intermittent operation.

A push-up device (5) shown in FIG. 3 is provided at a position directly below the triangular hole (11) on the upstream side of the guide plate (1).

The plunging device (5) is the receiving tray portion (43) of the conveying device (4).
The lifting device (
52). The lifting device (52)
is a rotating shaft (53) freely rotatable on the base (10).
Pinion gear (54) +551 (
55+ is fixed, and the central pinion gear (54) has a rack rod (
57) are engaged.

Also, the pinion gears (551 (
551 is equipped with a rack rod that can be moved vertically down 1" [5B1 f58+ is engaged, both rack rods f58)
The ends of the f58+ are connected by a connecting plate (59).

Connecting plate f59) 1 has push-up rods (5
0) is provided protrudingly, and a triangular protruding plate (5]) slightly smaller than the penetrating portion (44) of the saucer portion (43) of the rice ball conveying device (4) is provided at the tip of each rod (50). ing.

By the operation of the cylinder (56) of the thrusting device (5),
The push-up rod (50) rises and the negative surface of the push-up plate (51) is aligned with the upper surface of the guide plate (1).

The guide plate is provided with a rice ball ejecting device (6) further downstream than the triangular hole (11) on the upstream side.

The ejecting device (6) is a protruding plate (62) driven by a cylinder (61), and a protruding block (64) having a V-shaped notch (63) at the tip thereof is inserted into the triangular hole (11) of the guide plate (1). The guide plate (1) passes through the triangular hole (11) on the second stream side of the guide plate (1) and is pushed up onto the guide plate (1) by the protruding device (5). Insert the rice ball into the notch (63) of the block (64) and protrude above the downstream triangular hole (12). As shown in Figure 2, swing the rice ball below the downstream triangular hole (12) of the guide plate (1). A frame (65) is provided, the swinging frame - a rice ball support device (75) and a seal folding device (7) are provided.

The swinging frame (65) is formed into a U-shape by connecting the upper ends of a pair of lever plates +66) +66) with a flat plate (G force) rotatably pivoted to the base (10), and is connected by a cylinder (68). With the pivot (69) as the fulcrum, the base (1
0) is thrown forward.

The folding device (7) fixes a cylinder (71) at the center of the lower surface of the swing frame (65), and the piston rod (72) penetrates the swing frame (65) and projects to one side. A support plate ff3) is provided at the tip of the support plate 72) in a manner perpendicular to the transfer path of the onikiri.

The support plate (73) has a triangular hole (12) on the downstream side of the guide plate (1).
) corresponding to the top (13) facing upstream of the triangular hole (12).
) A folding plate [74] along the two sides sandwiching the (741) is formed by protruding upward.

The height of the folding plate (74) is approximately equal to the sum of the thickness of the rice ball (9) and the thickness of the guide plate (1).

As shown in FIGS. 2 and 6, the support device (75) has a cylinder (76) projecting from the center of the lower surface of the swing frame (65) in the same manner as the folding device (7), and the piston rod (72) penetrates the swing frame (65) and protrudes in the - direction, and a support rod (2) is provided at the tip of the rod (72) perpendicular to the transition path of the rod (72) and the rice ball. Vertical shafts (78) are provided on the support rod (78) to protrude upward corresponding to the arrangement pitch of the triangular holes (12) of the guide plate (1).
) is provided with a triangular plate (79) that slidably penetrates the support plate (73) of the folding device (7) and fits into the triangular hole (12) of the guide plate (1) with ample space at the tip. There is.

A U-shaped mounting base (81) is provided above the downstream triangular hole (12) of the guide plate (1), and a sheet holding device (8) and a sheet heat welding device are provided on the mounting base. .

As shown in FIGS. 2 and 6, the sheet holding device (8) is equipped with a cylinder (83) with the piston rod (82) facing downward, approximately in the center of the mounting base (811), and a cylinder (83) with the piston rod (82) facing downward.
3) A support plate (84) is fixed to the tip in a direction perpendicular to the transition path of the rice ball.

The lower surface of the support plate (84) has a triangular hole (11) in the guide plate (1).
) A presser plate (115) +85) that can be inserted and removed from the presser member (86
) are arranged in accordance with the arrangement pitch of the triangular holes (12).

Each holding plate (ft51 (851) is arranged along two sides continuous with the top (13) of the first flow side of the triangular hole (12).

The heat welding device (87) is provided with a cylinder (88) with the piston rod facing downward approximately in the center of the mounting base (81), and a support plate (89) is fixed to the tip of the piston rod perpendicular to the transition path of the rice ball. and a guide plate (
Heat welding irons (80) are arranged in accordance with the arrangement pitch of the downstream triangular holes (12) of 1).

As shown in Figure 7, each triangular hole (
12), two air injection nozzles (92) (92) are provided for one triangular hole (insertion).

Each injection nozzle (92) (92) is arranged along an extension of two oblique sides facing upstream of the triangular hole (12).

A parallel support plate +93) (93) is provided on one side of the injection nozzle (92) +92) perpendicular to the transition path of the rice ball, and a sheet folding device aOt1 is provided between the support plates +93) +931. .

The convolution device QO@ has a support plate + as shown in Figures 7 and 8.
93+ +93) A pair of large and small arms (101) (
102) is pivoted freely in a horizontal plane, and the large arm (1
, 01) has a triangular piece (1) corresponding to the triangular shape of the rice ball.
04) stands out.

The triangular piece (104) has a through hole (103) that allows the heat welding iron (80) to move in and out.

The small arm (102) is the rice ball (9) on the guide board (1)
The large arm (101) rotates slightly above the small arm (102).

” 2. Axis (1) of both arms (10J, ) (1,02)
05) (106) has gears (107) (1,08)
is fitted and fixed, and the gear (107) on the large arm (101) side
) directly connects the gear (108) on the small arm (1,02) side.
is connected to the rack (110) via an idle gear (109).

The rack (1, 10) is connected to a cylinder (], 1.1), and by the operation of the cylinder (1, 11), both arms (101) (1, 02) are shown by the two-dot chain line in Fig. 7. The packaging device is controlled by detectors such as phototubes and limit switches placed at appropriate locations, and continuously performs the following operations.

[Removal of sheet]

As shown in Fig. 3, the arm (32) of the sheet take-out device (3) rises -I- and the suction nozzle (33) at the tip of the arm (3)
) sucks the rearmost sheet (S) of Sui Tsukaen,
Next, the arm piece (3) falls backward, and the suction of the sheet (S) is released with the suction sheet (Sl) resting on the belts (22) (22) of the sheet conveying device (2).

The sheet (S) is sent downstream by the rotation of the bell (22) and stops moving when it hits the contact piece (23).

The belt (22) continues to rotate.

[Onigiri supply]

On the other hand, rice balls are sequentially loaded into each tray part (43) of the rice ball conveying device (4) by an operator or by an automatic loading device (not shown), and the rice balls filled with the rice balls are fed by the intermittent operation of the rice ball conveying device (4). The saucer part (43) is a guide plate (
They sequentially stop below the upstream triangular hole (11) of 1).

[Pushing up the rice ball]

The push-up device (5) operates in synchronization with the stoppage of the rice ball conveying device (4), and the saucer portion (43) is stopped.
The push-up plate (51) rises through the.

The rice ball (9) is lifted by the push-up plate (51), and while lifting the sheet (S) waiting above, it is guided through the triangular hole (11) of the guide plate (1) as shown in Figure '9. It reaches the top surface of plate (1).

When the Onigihiki 9) passes through the triangular hole (11), the sheet (
The sheet (S) is bent downward along the outer edge of the rice ball by the hole edge of the triangular hole (11), and the sheet (S) is folded downward as shown in Fig. 11 (
Cover the rice ball in state B).

At this time, the ears (S4) at both upper ends of Sea 1- (S2)
(S4) passes through the cut groove 15) +151 of the triangular hole (11) and does not wrinkle.

[Protruding rice ball]

The cylinder (61) of the ejecting device (6) operates, and each ejecting block (lli4) applies the rice ball (9) to its V-shaped notch (63), and pushes the rice ball (9) into the downstream triangular hole ( It protrudes to the position 12).

At this time, the triangular plate ff9 of the support device (75) in the downstream triangular hole (12) is raised and waiting as shown in FIG. 10 (N), and the rice ball does not fall from the triangular hole (12).

When the rice ball (9) was ejected from the upstream triangular hole (11) to the downstream triangular hole (12) as described above, the sheet hanging from the downstream edge of the rice ball shown in Figure 11 (Bl) The rectangular folded piece (S2) is folded towards the bottom side of the rice ball (9) as shown in Figure 11 (C1), and the triangular folded piece (83) of the sheet hanging down from the other side edge of the rice ball (83)
is bent outward.

[Air injection]

At the same time that the rice ball (9) is projected onto the downstream side triangular hole α4 of the guide plate (1), air is injected from the air injection nozzle (92) +92+ shown in FIG. The short ears (84) of the sheet protruding outward on the downstream side of the rice ball (9) are the first
It is folded inward as shown in Figure 1 (D).

Note that even if air is constantly injected from the air injection nozzle (92), the same effect as described above is achieved.

[Sheet presser]

At the same time that the block (64) of the ejector (6) retreats to the upstream side, the sheet holding device (8) located above the rice ball (9) is activated to lower the holding plate (85) and press the rice ball. (9)' - 2 that holds the top part 03) of the stream side
Press down on the sides (Figure 10 (B)).

[Folding the sheet]] While the sheet (S) covering the top and sides of the rice ball is being held down by the receipt holding device (8), the folding device (7) operates and the support plate (75) rises. do.

As shown in Figures 6 and 10 (C), the folding plate (74) protruding from the upper surface of the support plate (75) is inserted into the triangular hole (12) and chain hole (12) of the guide plate (1). Fitted triangular board (79)
At this point, fold both sides of the sheet (S) in the -1- direction along the edge of the rice ball (9) as shown in Figure 11 (like a scent).

"Folding the Sheet" As described above, the folding plate (74) of the folding device (7) folds the edge of the sheet (S) upward and presses the sheet so that it does not fall over, and then the presser device (8) is folded. The presser plate (85)
Figure 10(D)'), then Figure 8, Figure 1
The folding device (100) operates as shown in Fig. 0 (E), rotates the pair of arms (101) and (102) inwardly, and folds the end (Ss) of the sheet (S) as shown in Fig. 11 (E). )
(Ss) is placed on top of the rice ball (9) at the - side position.

[Sheet welding]

The heat welding device (8'?) operates with the arms (101) (102) covering the top surface of the rice ball (9).
As shown in Figure JO (CF), the iron (80) descends, penetrates the hole (868) of the holding member (86) of the sheet holding device (8), and enters the through hole (103) of the large arm (101). , heat weld the overlapping portions of the sheet ends.

As a result, the triangular rice balls are beautifully packaged as shown in FIG. 11(F).

[Discharge of wrapped rice balls]

The heat welding iron (80) rises and the arm (101) (
102) has returned to its original position, the support device (75)
The folding device (7) is operated, and the triangular plate (79) supporting the rice ball (9) and the folding plate (74) that abuts the side of the rice ball are lowered, and then the swinging device (65) is activated. ) is activated, the triangular plate (79) is tilted, and the onigiri (9) slides down from the triangular plate (79) as shown in Figure 10 (■) and is discharged onto a waiting discharge conveyor (not shown). be.

-I- By repeating the starting operation, the rice balls are continuously wrapped.

When eating rice balls, remove the sheet (S), tear the sheet (S), take out the sheet-shaped seaweed fly, and remove the sheet (S).
90) to wrap the rice ball.

As described in 1., the present invention automatically wraps the rice balls just by putting them into the rice ball conveying device, and the packaging work can be done much more efficiently and hygienically than the conventional manual packaging. It has excellent effects.

[Brief explanation of drawings]

Fig. 1 is a plan view of the packaging device, Fig. 2 is a sectional view of the packaging device, Fig. 3 is a sectional view of the area around the ejection device, Fig. 4 is a slope view of the guide plate and ejection device, and Fig. 5 is a presser foot. Figure 6 is a slope view of the members, Figure 6 is a slope view of the presser member, iron, support device, and folding device, Figure 7 is a plan view of the folding device, Figure 8 is a slope view of the folding device, and Figure 9 is a raised state. Explanatory diagram of Figure 10A
-H is an explanatory diagram of the operating state on the downstream side triangular hole, and FIGS. 11A to 11F are explanatory diagrams showing the order of sheet folding. (1)...Guide plate (11)...Upstream triangular hole (12)...Downstream triangular hole (2)...Sheet conveyance device (3)...Sheet take-out device (4)・・・
Rice ball conveyance device (5) ... push-up device (6)
...Protrusion device (7) ...Folding device (75
)... Support device (8)... Sheet holding device (9
)...Rice ball (100)...Folding device lJi Gandai Lead Dust Iron Works Co., Ltd. (-e Japanese Patent Publication No. 59-45839 (9)

Claims (1)

[Claims] ■ A rectangular sheet is placed horizontally below a horizontal guide plate with a triangular hole slightly larger than the outline of the triangular rice ball, and the triangular rice ball is further aligned below the sheet in the direction of the triangular hole in the guide plate. The process of pushing up the triangular rice ball and passing it through the triangular hole of the guide plate along with the sheet, folding the sheet along the edge of the hole, and covering the top, diagonal sides and bottom of the triangular rice ball with the sheet, the process of placing the sheet through the triangular hole of the guide plate horizontally moving the triangular rice ball that passes through the hole and protrudes above the guide plate to the bottom side, and bends the sheet fold S2 hanging from the bottom of the rice ball by the hole edge of the guide plate to cover the bottom surface of the rice ball; A process of folding up the sheet folded piece S2 covering the bottom surface of the rice ball along both oblique sides of the rice ball, and overlapping both ends S5 of the sheet folded piece S2 on the top surface of the rice ball, the overlapped ends S of the sheet folded piece S2
5. A method for packaging triangular rice balls, characterized by carrying out a series of steps of fixing the rice balls 5 to each other. ■ It is supported horizontally and the upper surface becomes a transition path with a triangular onigiri (9), and a through triangular hole (Ill (IZ) is opened with the top facing the -1- stream side on the upstream and downstream sides of the transition path, respectively. a guide plate (1), and a sheet conveying device (2) disposed below the guide plate (1) and conveying the packaging sheet (S) below the triangular hole (11) on the second flow side of the guide plate (1). ) and below the sheet conveying device (2), with a penetration part (
A rice ball conveying device (having a large number of triangular saucers (43) having a plurality of pieces) moves intermittently and sequentially stops the saucers (43) right below the triangular hole (11) on the upstream side of the guide plate (1). 4)
and a push-up plate (51) arranged directly below the upstream triangular hole (11) of the guide plate (1) and connected to the lifting device (52).
) is inserted into the upstream triangular hole (11) of the guide plate (1) through the penetration part (44) of the saucer part (43), and "Deployed"
Rice ball protruding device I7 (4
) and a triangular hole (12) on the downstream side of the guide plate (1) so that it can be raised and lowered, ) (A holding plate +85+ along the two sides facing 14+ A holding member (86) having a holding plate +85+ facing downward, and a holding member (86) provided so as to be movable up and down below a triangular hole (12) on the downstream side of the guide plate (1), Hole (12
) and a triangular plate (79) that appears and retracts with plenty of room to support the rice balls, and a triangular hole (12) that is disposed near the triangular plate (79) so as to be movable up and down and is located downstream of the guide plate (1) on the upstream side of the triangular hole (12). A folding device (7) equipped with folding plates +741 (74) along both sides from the top (13) facing toward the other top (14) (14) in two directions, and the downstream side of the guide plate (1). A pair of arms (101) are arranged near the triangular hole (12).
) (102) are horizontally moved in a direction approaching each other at slightly different heights than the top surface of the onigiri, and the folding device folds the sheet pieces protruding from the two sides of the onigiri so that they overlap each other. A triangular rice ball packaging device consisting of 00■.