JPS6016481Y2 - Quantitative feeding device for viscous solid foods - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a quantitative feeding device for a slightly viscous solid food such as natto.

As a quantitative feeding device for such viscous solid food, an upper shutter and a lower shutter are provided in the flow hole that is continuous with the hopper, and after opening the upper shutter and accumulating a predetermined amount of food on the lower shutter, the upper shutter is opened. When the container is closed to separate a certain amount of food, and then the bottom shutter is opened to drop the separated amount of food into the container, air is blown out from the blowout hole provided in the top shutter, and the air is sprayed onto the inner wall of the distribution hole. Means for forcibly dropping adhering food are already commonly used.

However, since both the upper and lower shutters are normally provided to open and close the flow hole by reciprocating in a direction perpendicular to the axis of the flow hole, they are retracted when the lower shutter is retracted. A considerable amount of food adheres to the inner wall surface near the hole, and the airflow from the upper shutter cannot reliably drop it, and if the pressure of this jetted air is increased, it Therefore, even if the fixed amount is classified as described above, the actual situation is that the filling amount of the container is uneven due to lack of quantity.

This project was devised in view of these circumstances, and is designed to drop all the viscous solid food that adheres to the inner wall surface of the flow hole, especially the inner wall surface near the lower shutter.The following is a drawing showing an example. Let me explain this.

In the figure, 1 is a frame, 2 is a hopper, 3 is a main body of the constant supply unit, and a communication hole 4 communicating with the inside of the hopper 2.
As shown in the second figure, an insertion hole 5 is provided in the upper part of the central part in the vertical direction. The shutter 6 is movably inserted.

Each upper shutter 6 is a flat cylindrical body whose width is slightly larger than the diameter of the communication hole 4, and air cylinders 7 whose outer bases are attached to the frames 1 on both sides.
The upper plate 6' is connected to and reciprocated, and only the upper plate 6' is provided with a slightly longer protrusion from the tip of the cylindrical opening 6a inserted into the insertion hole 5. In the state shown in the second figure in which the upper plate 6' is inserted and closed, the tips of both upper plates 6' are slightly separated and face each other, and each upper plate 6' of the portion forming the cylinder is connected to the inside of the cylinder. The connecting air pipe 8 is now installed.

Further, an insertion hole 9 similar to the communication hole 5 is provided on the lower side of the main body 3, and a lower shutter 10 is movably inserted into the insertion hole 9 from both the left and right sides.
0 is connected to air cylinders 11 attached to the frames 1 on both sides for reciprocating movement, and the upper shutter 6
Immediately after entering and closing the flow hole 4, the lower shutter 10
moves back to open the flow hole 4, and the lower shutter 10
The opening and closing operations are set to be opposite to each other so that the upper shutter 6 opens immediately after the upper shutter 6 is closed.

In the quantitative supply device having such a structure, the present invention is such that the inner wall of the communication hole 4 between the upper and lower shutters 6.10 is formed by a jet cylinder 12. It has a large number of air ejection holes 13 with a diameter equal to that of the flow hole 4, and is incorporated into a portion recessed into the inner wall surface of the communication hole 4 to a slightly larger diameter.

Further, the ejection cylinder 12 is integrally formed with a ring-shaped body 15 forming an air circulation gap 14 around the entire back surface thereof,
The annular body 15 is provided with connection parts 17 for air nozzles 16 communicating with the circulation gap 14 at at least two places, and the air hose 18 connected to the air nozzles is connected to the same air compressor (not shown) as the air supply pipe 8. Immediately after both lower shutters 10 are opened, they simultaneously eject air, and the air ejection is stopped before the lower shutters 10 are closed.

Note that 19 in the figure is a guide tube attached to the outlet side of the flow hole 4.

In the device of the present invention configured in this way, the lower shutter 10 pushed forward by the air cylinders 11 on both sides closes the lower part of the circulation hole 4, and the upper shutter 6 pulled back by both air cylinders 7 closes the upper part of the circulation hole 4. In the opened state shown in the third figure, the food in the hopper 2 accumulates on the lower shutter 10 from the flow hole 4, but then the air cylinder 7 is pressed and the upper shutters 6 are moved into the flow hole 4. As it enters, the flow hole 4 connected to the hopper 2 is blocked,
A certain amount of food is sectioned below the upper shutter 6.

In this case, the upper plate 6' of the upper shutter enters from both sides.
As mentioned above, since the tips of the upper plate 6' stop at a slightly distant position, solid foods such as natto will not be crushed or cut by being caught between the tips of the upper plate 6'.

Next, the air cylinder 11 operates to pull back both lower shutters 10, so the lower side of the flow hole 4 is opened, and most of the food on the lower shutter 10 falls into the container.

Immediately after that, as shown in FIG. 4, air from the near compressor passes through the air pipe 8, from the cylindrical opening 6a of the upper shutter 6, passes through the air hose 18, passes through the air nozzle 16, and the circulation gap 14. Air is simultaneously ejected from the air ejection holes 13 of the ejection cylinder 12 into the communication holes 4.

This ejected airflow blows out centripetally toward the center of the circulation hole 4, collides with each other at the center, and instantaneously causes the wind pressure to act in the vertical direction, and eventually blows through below the circulation hole 4.

At this time, above the center of the flow hole 4, as mentioned above, both ends of the upper shutter 6 are slightly separated and a slight gap is maintained, so a part of the rising wind pressure is transferred from this gap to the food in the hopper. This absorbs and buffers the container, and the wind pressure blowing down the flow hole is reduced by that amount, and it is possible to prevent the ejected airflow from moving the container and causing it to become out of place or tilted.

Most of the adhering food is blown off by the jetted airflow and falls into the container.

Furthermore, viscous food that is not separated by air jets alone and still adheres to the food will instantaneously become turbulent inside the circulation hole 4 due to the air currents jetting toward the center colliding with each other at the center. , this turbulence causes it to be swayed in different directions, causing it to fall.

As mentioned above, according to the present invention, the inner wall of the communication hole between the upper and lower shutters is formed with a blowout cylinder having a large number of air blowouts, and air is ejected from each air blowout hole toward the center of the circulation hole. This blows off the adhered food and at the same time instantaneously creates a turbulent air flow inside the flow hole, which has the effect of completely dropping the adhered food that cannot be removed by the jetting alone.

In addition, a gap is maintained between the front edges of the upper shutter when it is closed, and a part of the wind pressure of the ejected airflow can be absorbed and depressurized inside the hopper through the gap, so the influence of wind pressure on the container below the flow hole is reduced. This has the effect of making it possible to make the filling amount uniform by reliably dropping any remaining food without causing any damage.

[Brief explanation of the drawing]

The drawings show one embodiment of the proposed device; FIG. 1 is a plan view of the device, FIG. 2 is a front view across the center of FIG. , FIG. 4 is a sectional view of the main parts in the operating state with the upper shutter closed. 2... Hopper, 4... Distribution hole, 6...
Song/upper shutter, 10...lower song shutter, 12
・Curved/Blowout cylinder, 13... Air blowout hole, 14
... Curved flow gap, 15 ... Annular body, 16 ...
...Air nozzle, 17...Connection part, 18.
·····air hose.

Claims (1)

[Scope of utility model registration request] In a fixed quantity feeding device that has an upper shutter on the upper side of the circulation hole connected to the hopper that opens and closes the circulation hole by reciprocating from both left and right sides, and a lower shutter on the lower side, the upper shutter opens and closes in reverse. When closed, a slight distance is maintained between the tips of the shutters on both sides, and the inner wall between the upper and lower shutters is integrally formed with a ring-shaped body with air circulation gaps around the entire circumference, and has numerous air injection holes. The air nozzle is formed by a jet cylinder, and the annular body is provided with a required number of air nozzle connections, and air is jetted from the air jet hole immediately after the lower shutter is opened, and the jet is stopped immediately before the shutter is closed. Characteristic quantitative feeding device for viscous solid foods.