JPH0412697B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for packaging rice balls of the present invention.

``Original technology'' Conventionally, triangular rice balls are packaged in double-layered synthetic resin bags, with pieces of seaweed sandwiched between the inner and outer bags. After opening one side of the triangular seal, the apex of the triangle of the outer layer bag is separated from the perforation to form a small hole, and the apex of the inner layer bag is pulled through the small hole toward the apex side. When the inner layer bag is pulled out and removed through the small hole, the intermediate nori sheet comes into direct contact with the rice ball, allowing the rice ball to be rolled in seaweed. Thereafter, the norimaki is taken out from the opening on one side of the outer bag and eaten. However, the packaging of the rice balls described above requires a lot of labor and labor, as it involves first inserting the rice balls into the inner layer bag, then covering the outside of the inner layer bag with a seaweed sheet, and then inserting this into the outer layer bag, which improves packaging efficiency. It was difficult to do so, and it was difficult to meet the demand for tens of thousands of packaged rice balls per day. Furthermore, if packaging is attempted by a machine, the inner and outer layer bags and the sandwiched seaweed pieces do not come into close contact with each other at the time of packaging and tend to shift, resulting in defective packaging.

"Problems to be Solved by the Invention" An object of the present invention is to improve the efficiency of the packaging operation of double-wrapped rice balls with pieces of seaweed and to perform the packaging operation without defective packaging.

"Means and effort for solving the problem" The present invention provides a rice ball storage device, which is formed by opening the space between the outer peripheries of upper and lower plates formed at the front part, into an endless rotating chain, with the front part facing the moving direction. a step of fitting a synthetic resin double bag holding seaweed pieces into the front part of the container at the upper horizontal part of the chain;
A process of welding the inner and outer layer bags of the double bag at the opening of the double bag, and discharging the rice balls in the container from the outer circumferential space in the moving direction to package the rice balls in the double bag. It is constructed using a characteristic rice ball packaging method.

"Operation" Therefore, the endless chain is rotated in one direction, its upper horizontal transition portion is moved from the starting end toward the terminal end, and the front end of the rice ball storage device is moved in the moving direction. During the movement, the inner layer bag is fitted to cover the outside of the upper and lower plates. After that, the outside of the inner layer bag is covered with a seaweed sheet, and then the outer layer bag is fitted so as to cover this. In this way, the upper and lower plates move horizontally towards the end as the chain rotates while still being covered with the double bag of the inner and outer layers and the seaweed pieces, and the triangular rice ball is formed between the upper and lower plates. be accommodated. After that, the inner and outer layer bags are welded at the opening of the double bag, and then at the end of the horizontal transition part, the endless chain rotates downward, so the upper and lower plates face downward, so the rice balls are held between the upper and lower plates by their own weight. It is discharged downward from the outer circumferential opening interval, enters the double bag, is packaged in the same packaging, and is taken out. Discharge can be performed not only by its own weight, but also by forcibly extruding the rice ball with a pusher.

``Embodiment'' Endless rotating chains 9, 9 are supported on a machine frame 8 between a driving sprocket 10 at the end and a floating sprocket 11 at the starting end, and support rods 12 are installed between both chains 9, 9 at equal intervals. The upper transition portions of the chains 9, 9 are horizontal and support the rice ball storage device 2 on the support rods 12. This storage device 2 has a front part (a part facing the end of the horizontal transition part) opened in the outer circumferential interval part 7 of the upper plate 2' and the lower plate 2'', which are formed into a V-shape, and the upper and lower plates 2',
2'' are connected by side plates to maintain the above-mentioned interval 7 at a substantially constant interval, and the lower plate 2'' is extended rearward, and an upright mounting plate is provided on the lower surface of the lower plate 2'' and the receiving plate 13. 14 to support the retaining rod 12. At the starting end side of the upper horizontal transition part, an inner layer bag supply fitting device 15 to the rice ball container 2 is provided, and a suction cup 16 of the device 15 The upper and lower plates 2', 2'' enter into the inner layer bag 3 which has been opened by suction, and the inner layer bag 3 is fitted onto the upper and lower plates 2', 2''.Then, it is sucked by the upward suction cup 17 and both sides The container 2 is inserted into the piece of seaweed 18 (FIG. 5) which is bent upward by the protruding edge, and in this state, both sides of the piece of seaweed 18 are placed on the upper plate 2' with folding plates 19, 19. The inner layer bag 3 is covered with the seaweed pieces 18 by folding in opposite directions.The folded portions on both sides are pressed by the horizontal pressing plates 20 to prevent the sides of the seaweed pieces from rising up while being transferred, and are further moved by the suction cups 21. Then, it is sucked downward and enters the open outer layer bag 4, and the upper and lower plates 2', 2'' are wrapped in double layers (FIG. 1). Thereafter, the triangular rice ball 6 is fed onto the rearward extension of the lower plate 2'' as it slides between the horizontal guide rods 22, 22 towards the end.This feeding occurs at the beginning of the upper horizontal transition. After that, the heating tool 2 is pressed onto the upper and lower surfaces of the housing tool 2.
3 and 23, the inner and outer layer bags 3 and 4 at the opening are point welded 5. Then, the rice ball 6 bypasses the end drive sprocket 10 and moves downward, entering between the upper and lower plates 2' and 2'', and further descends from the opening outer circumferential space 7 of the upper and lower plates 2' and 2'' due to its own weight. When it is discharged and descended, it is packaged in the double packaging and taken out. In addition, as shown in FIG.
By rotating it back and forth, it can be forcibly discharged in the above-mentioned moving direction, packaged in the same manner as described above, and unloaded onto the conveyor 25. The heating tools 23, 23 compress the inner and outer layer bags 3, 4 between the upper and lower plates 2', 2'' to weld 5 the both bags 3, 4, and the welding 5 is performed by the heating tools 23, 2.
3 is moved at the same speed as the movement of the upper and lower plates 2' and 2''. In the figure, 26 indicates the above-mentioned constant speed movement interlocking device, and 1' indicates the protruding edge of the opening of the double bag 1. , 27 is a through hole drilled in the same edge 1', 28 is a bag laminated rod inserted through the through hole 27, and 29 in FIG. 3 is an engagement spring plate between the rear side plate of the container 2 and the receiving plate 13. The container 2 is detachably supported by the receiving plate 13.

"Effects" Since the present invention is configured as described above, it is possible not only to easily and quickly package the rice balls 6 in the double bag 1 holding pieces of seaweed, and to apply it to bulk packaging. 4 and the sandwiched seaweed pieces 18 are not likely to be misaligned with each other, and defective double packaging can be prevented.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a double bag holding seaweed pieces according to the rice ball packaging method of the present invention, and Fig. 2 is Fig. 1 A-A.
3 is a perspective view of the rice ball container, 4 is a side view of the double bag packaging device for holding seaweed pieces, 5 is a plan view of 4, and 6 is the welding device. 7 is a side view of the same device in a constant speed movement state, FIG. 8 is a side view of the welded state, and FIG. 9 is a side view of the same device in a welded state.
FIG. 3 is a front view taken along line B-B in FIG. 1... Synthetic resin double bag holding seaweed pieces, 2... Rice ball storage device, 3, 4... Inner and outer layer bags, 5... Welded part,
6...Rice ball, 7...Outer circumferential interval, a...Movement direction.

Claims (1)

[Claims] 1. A rice ball storage device formed by opening the outer periphery of the upper and lower plates formed at the front part is supported on an endless rotating chain with the front part facing the moving direction, and at the upper horizontal transition part of the chain, a piece of nori is held between the rice balls. A step of fitting a synthetic resin double bag to the front part of the container, a step of welding the inner and outer layer bags of the double bag at the opening of the double bag, and a step of welding the rice balls in the container to the outer circumferential space. A rice ball packaging method characterized by packaging the rice balls in the same double bag by discharging the rice balls from the bag in the above-mentioned moving direction.