JPS6141587Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for quantitatively feeding sticky materials such as boiled rice and bean paste, such as automatically feeding a handful of rice into a rice ball mold hole.

Conventionally, a device shown in FIG. 6 has been used to automatically feed a handful of cooked rice intermittently to an automatic rice ball embossing device.

The above-mentioned device has a pair of roller rows 3, 3a sandwiched between the transfer path of cooked rice 9 falling from a belt conveyor 12 so that the distance between them narrows toward the bottom, and endless belts 7, 7 are stretched around each roller row. , a shutter device 5 for opening and closing the food transfer path is provided below the roller row.

The belts 7, 7 are rotated in the direction in which the rice is pulled down by rotating the roller row, and the mold holes 62 of the automatic embossing device 6 below are opened and closed by the opening and closing of the shutters 51, 51.
A predetermined amount of cooked rice is supplied to the

In the above device, the rice facing the belt is fed between the belts 7 and 7, and remains in contact with the belt until it is discharged from the shutter device 5. During this time, the rice is kneaded by slipping with the belt. This is a major factor in reducing the quality of rice balls.

Also, since the cooked rice held between the belts 7 and 7 has a rectangular cross-section as shown in FIG. As shown in , the gaps between the three tops of the mold hole 62 and the rice lump 91 are not the same,
It is disadvantageous to uniformly fill every corner of the mold cavity 62 with cooked rice during stamping.

〔the purpose〕

This invention does not require kneading sticky ingredients such as cooked rice.
However, it is an object of the present invention to provide an apparatus that can solve the above problem by supplying a short cylindrical mass in a fixed amount.

〔composition〕

A pair of roller rows are rotatably arranged in between the drop path for dropping sticky materials such as cooked rice so that the distance between the left and right rollers gradually narrows downward, and each roller is set in the direction of dropping the sticky material. A drive device that rotates is connected, and a shutter device is provided below the roller row to open and close the fall path for the adhesive material, and the outer circumferential surface of each roller gradually decreases in diameter in an arc shape toward the center in the width direction. are doing.

[Effect]

The adhesive material placed between the rows of rollers is gradually pinched and dragged downward by the rollers, but the material facing the rows of rollers only comes into contact with the rollers intermittently, unlike the conventional belt type. This prevents the material from being rubbed by the belt and kneaded from the time it is introduced until the time it is discharged.

In addition, since the material is supplied between the rollers whose outer periphery is concave in an arc shape, the material is released as a roughly cylindrical lump. Therefore, in order to supply material to a triangular hole, If the material is poured into the mold hole so that the center of the material is aligned, the gaps between each of the three tops of the mold hole and the material will be equal, so that every corner of the mold hole will be filled with the material evenly during stamping. I can do it.

The present invention will be specifically described below based on embodiments shown in the drawings.

The drawing shows a device that automatically feeds cooked rice in portions of about 100g, and as shown in Figure 1, it consists of a base 1 and a hopper 11.
A belt conveyor 12 is disposed between the belt conveyor 12, a quantitative feeding device 2 according to the present invention at the downstream end of the conveyor 12, and a turntable 61 of an automatic embossing device 6 below the quantitative feeding device.

As shown in FIG. 2, the quantitative feeding device 2 has a vertical substrate 21 placed at the rear facing the material falling path continuous to the downstream end of the conveyor 12, and has a pair of roller rows on the substrate 21 with the falling path 8 in between. 3,3a are deployed.

Each roller row 3, 3a has three rollers 3 of the same shape.
1, and the rollers 31a and 3 at the bottom are gradually sandwiched downward between the left and right rollers.
1a are close to each other, and the angle θ formed by both roller rows 3 and 3a is about 20°.

Each roller is made of a material with a small coefficient of friction, such as polyfluoroethylene resin, and is characterized in that its outer peripheral surface is tapered in an arc shape toward the center in the width direction.

In the example, the maximum diameter of the roller is approximately 78 mm, and the minimum diameter is approximately 46 mm.
mm, thickness is approximately 48 mm, and the radius of curvature of the circular arc-shaped recess on the outer periphery is approximately 25 mm.

Further, as shown in FIG. 4, six protrusions 30 extending in the axial direction and having a height of about 2 mm are provided at equal intervals on the outer peripheral surface.

Each roller 31 is detachably attached to the tip of a roller shaft 32 that rotatably passes through the substrate 21.
The base end of each roller shaft 32 is linked to the rotational drive device 4.

The rotational drive device 4 has each roller shaft 32 of both roller rows.
The respective common rotation shafts 4 are connected to each other via a bevel gear 41.
Gears 42, 42 are connected to the rollers 4, 44 and mesh the central roller shafts 32a, 32a of both roller rows with each other.
A motor 43 is connected to one of the gears 42, and the rotation of the motor 43 rotates both roller rows 3, 3a in a direction to drag the material thrown between the roller rows downward.

The rotation time and stop time of the motor 43 can be freely set using a timer (not shown) provided in its electric circuit.

A shutter device 5 for opening and closing the material falling path 8 is provided below the roller row, and the shutter device has a pair of shutters 51, 51 that can be opened and closed from side to side as shown in FIG. A pair of gears 53, 53 are provided.

The gears 53, 53 have protruding shafts 54, 54 at eccentric positions.
The shaft 54 is fitted into a long hole 52 formed in the shutters 51, 51.

One of the gears 53, 53 is connected to the motor 5.
Connect to 6. The motor 56 is connected to a timer, and the rotation time and stop time can be set freely.

A pair of guide plates 13, 1 are provided between the roller rows 3, 3a and the belt conveyor 12, sandwiching the material descending path.
3 are arranged vertically, and a cover plate 22 is removably arranged from the guide plate to the lower end of the roller rows 3, 3a to close the front surface of the falling path.

However, the cooked rice that falls between the roller rows 3 and 3a from the downstream end of the belt conveyor 12 does not pass directly between the rollers, but due to the rotation of the rollers, because the distance between the rollers on both sides gradually narrows downward. It descends while gradually increasing its density due to the drag force and compression force from the left and right rollers.

At this time, the material facing the rollers does not contact the rollers all the time, but only contacts the rollers three times, which is the number of rollers, so even if a slip occurs between the rollers, the material will not become kneaded. , it is no different from the cooked rice inside that does not come into contact with the roller.

The shutter device 5 operates and the shutter 51,
When 51 is opened, the material descends in a connected rod shape,
When the shutters 51, 51 are closed, the rod-shaped material is cut, and the mold hole 62 of the lower turntable 61 is cut.
is released.

The outer peripheral surface of the roller 31 is tapered in an arc shape toward the center in the width direction, and the lowermost roller 31a,
Since 31a are close together, the material is extruded into a substantially cylindrical shape.

Note that since the rollers are made of a material with a small coefficient of friction, cooked rice will not stick to the rollers and be released from between the upper and lower rollers to the outside.

A triangular mold hole 62 as shown by the dashed line in FIG.
When feeding cooked rice 62 into the mold, the top of each mold hole and the rice mass 9
1, the gaps between them are approximately equal, and each top can be filled with material without excess or deficiency during stamping.

The applicant also tried forming each roller into a cylindrical shape, but when the amount of cooked rice was as much as 100 g, the amount varied greatly depending on the softness of the cooked rice, temperature, etc., making it unsuitable for practical use. This is thought to be because, compared to the drum-shaped rollers of the present application, the cylindrical rollers have a smaller area in contact with the cooked rice, so the force with which they can pull the cooked rice downward is smaller, and the cooked rice cannot be pushed downward stably.

[Brief explanation of the drawing]

Fig. 1 is a side view of the quantitative feeding device in an installed state, Fig. 2 is a front view of the quantitative feeding device, Fig. 3 is a sectional view taken along the line shown in Fig. 2, and Fig. 4 is a sectional view of the roller.
Figure 5 is a cross-sectional view taken along the line of Figure 2, Figure 6 is a front view of the conventional example, Figure 7 is a cross-sectional view taken along the line of Figure 6, and Figure 8 shows the state in which material is supplied to the mold cavity. FIG. 3, 3a...Roller row, 31, 31a...Roller, 5...Shutter device.

Claims (1)

[Scope of utility model registration request] A pair of roller rows 3, 3a are arranged across a falling path 8 for dropping sticky materials such as cooked rice, so that the gap between the left and right rollers gradually narrows downward, and the lowest rollers 31a, 31a approach each other. Each roller is connected to a drive device 4 that rotates in a direction to pull down the adhesive material, and a shutter device 5 that opens and closes a falling path for the adhesive material is provided below the roller row. 1. A quantitative feeding device for boiled rice, etc., characterized in that the outer circumferential surface is formed in the shape of a drum whose diameter is gradually reduced in an arc shape at the central portion in the axial direction.