JPS6336750B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a material activation device in a food molding die in an extrusion molding apparatus for processed foods, confectionery, etc.

[Prior Art] When materials are kneaded and extruded by an extruder in an extrusion molding device for processed foods or confectionery, etc., the materials do not necessarily have uniform physical properties due to the pressure and shearing force inside the extruder. It does not necessarily mean that it will be granted. In other words, the thermal history and shear may vary depending on the passage of the flow path in the extruder where the screw is located, the difference in pass time, or whether the screw passes through the center of the cross section of the flow path in the die or through the wall surface. This causes a difference in force, and this difference affects the decomposition state (conditions) of the material.

Materials for processed foods, confectionery, etc. are kneaded and compressed in an extruder, and are shaped and extruded while being heated and given a predetermined shape at the tip of a die. Since the material is extruded while being compressed, the material that flows along the wall surface of the channel and tends to stagnate is pulled by the material that flows through the center and is extruded.

[Problems to be Solved] However, over a long period of time, the material flowing through the channel wall remains on the die wall. The physical properties of this retained material change over time, eventually leading to retention and decomposition of the material, which necessitates stopping the operation of the extruder to deal with these problems.

As a result, production efficiency decreases, as well as stagnation and
There was a problem that high quality food could not be obtained due to the influence of decomposed materials.

The present invention was made in view of the above problems, and it activates the material flowing through the flow path in the die body by changing the flow while shaking and pulsating, thereby preventing the material from stagnation and decomposition, thereby improving the quality of the material. The purpose of the present invention is to provide a material activation device in a die for food molding, which improves the performance of the extruder and enables long-term operation of the extruder.

[Means for Solving Problems] In order to achieve the above object, the material activation device in a food molding die of the present invention is a die that sequentially extrudes and molds materials kneaded by an extruder.
In front of the extrusion nozzle of the die body connected in the extrusion direction of the extruder, a flow path member forming one intermediate flow path is provided so as to be movable in a direction perpendicular to the extrusion direction, and this flow path member is moved in the extrusion direction. The configuration includes a moving means for moving in a direction perpendicular to the direction.

[Example] Hereinafter, an example of the apparatus of the present invention will be described with reference to the drawings.

Figure 1 is a longitudinal cross-sectional view of the first embodiment;
The figure shows a cross-sectional view of the first embodiment, FIG. 3 shows a horizontal cross-sectional view of the first embodiment, and FIG. 4 shows a longitudinal cross-sectional view of the second embodiment.

In these drawings, 1 is a cylinder of an extruder, and 2 is a kneading screw provided in the cylinder 1. Reference numeral 10 denotes a die body attached to the tip of the extruder by an attachment member 3, and in the case of this embodiment, a die for forming a thin plate-shaped food product is used.

The die main body 10 of the first embodiment has a shape in which the flow path 11 is divided into three stages: a base end flow path 11a, an intermediate flow path 11b, and an extrusion nozzle 11c, and the cross-sectional area of the flow path is sequentially reduced. Among these, the intermediate flow path 11b is formed in the flow path member 12. That is, a hole 13 that intersects the flow path 11 at right angles is provided in the lateral direction of the intermediate portion of the die body 10, and the flow path member 12 having one intermediate flow path 11b formed in this hole 13 is moved. It has been inserted as possible. Inlet shape of intermediate channel 11b formed in channel member 12 and base end channel 11a
, the outlet shape of the intermediate flow path 11b, and the inlet shape of the extrusion nozzle 11c are each the same shape to provide consistency.

Note that the cross-sectional area of each part of the intermediate flow path 11b is the same, and the base end flow path 11a or the extrusion nozzle 11c
Of course, the shape may be narrowed down.

Reference numeral 14 denotes a moving means rotatably attached to one side of the channel member 12, and is formed of a long screw rod. This threaded rod 14 is connected to the hole 1 of the die body 10.
The die body 10 is closed so as to close one opening of the die body 10.
It is screwed onto a support 15 having a U-shaped cross section attached to the side of the holder. Therefore, when the head of this screw rod 14 is rotated with a spanner 16 or the like, the flow path member 12 is moved to the second position.
It moves in the direction of the arrow shown in the figure and FIG.

In addition to the above-mentioned manual type, the moving means 14 can also be an automatic type using an electric motor or a pneumatic or hydraulic cylinder.

The device of the second embodiment shown in FIG.
2 in the vertical direction of the die body 10. That is, a hole 13 that intersects the channel 11 at right angles is provided in the longitudinal direction of the intermediate portion of the die body 10, and a channel member 12 having one intermediate channel 11b formed therein is movably inserted into the hole 13. It has been done. The moving means 14 for the channel member 12 is attached to the upper or lower part (the upper part in the embodiment shown in FIG. 4) of the channel member 12, and is screwed to a cross-sectional support 15 provided at the upper part of the die body 10. There is. Therefore, in the apparatus of this embodiment, the flow path member 12 moves in the vertical direction. Note that in this embodiment as well, it is possible to automate the moving means 14.

Next, the operation of the device of the present invention will be explained. The food material kneaded by the screw 2 inside the cylinder 1 of the extruder reaches the extrusion nozzle 11c from the cylinder 1 through the base end channel 11a and intermediate channel 11b of the die body 10, and is then kneaded by the screw 2 inside the cylinder 1 of the extruder. Extrusion nozzle 1
In step 1c, it is formed into a predetermined shape and then extruded.

After a while after starting extrusion molding, the material flows into the channel 11 of the die body 10, particularly the proximal channel 11a.
and intermediate flow path 11b, and near the wall surface within intermediate flow path 11b.

Therefore, after a predetermined period of time after starting extrusion molding, the flow path member 12 that forms the intermediate flow path 11b is
When reciprocating in the direction perpendicular to the flow path 11 in an appropriate cycle, the outlet of the proximal end flow path 11a is blocked or extremely constricted, and then opened, repeating the same movement. As a result, the flow path 11 of the die body 10
The food material flowing through the intermediate flow path 11b is oscillated and extruded in a pulsating manner. Therefore, the material that has been staying on the wall surface of the channel 11 is forcibly extruded by the impact at this time.

The length of the wall 12a in the horizontal or vertical direction of the intermediate flow path 11b in the flow path member 12 determines whether the outlet of the proximal flow path 11a is completely closed or to what extent it is constricted. Depends on.

Furthermore, when using the device of the first embodiment in which the flow path member 12 moves laterally, the reciprocating distance of the flow path member 12 becomes longer, so the proximal flow path 11
The time that the outlet of a is blocked (throttled) becomes longer, and the impact at the time of pulsation becomes larger, which effectively works to prevent stagnation.

If the flow path member 12 is then periodically moved back and forth as described above, the flow of the material that is constantly flowing inside the flow path 11 of the die body 10 will be dynamically changed and activated, and the material flow path will be activated. Eliminate stagnation within 11.

Note that the food products targeted by the present invention broadly include fish paste products, pet foods, and the like.

[Effects of the Invention] According to the present invention as described above, the flow path member forming a part of the flow path of the die body is moved in a direction perpendicular to the extrusion direction of the material, and the material flowing in the die flow path is moved. By changing the flow and activating it, it is possible to prevent material from stagnation and decomposition in the flow path of the die body, enable long-term operation of the extruder, improve production efficiency, and improve the shape and quality of molded products. It can also be improved.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a transverse sectional view, and FIG. 3 is a lateral longitudinal sectional view. FIG. 4 shows a longitudinal cross-sectional view of a second embodiment of the device according to the invention. 1: Cylinder, 2: Screw, 10: Die body, 11 (11a, 11b, 11c): Channel, 1
1a: proximal flow path, 11b: intermediate flow path, 11c:
extrusion nozzle, 12: channel member, 13: hole, 14:
transportation.

Claims (1)

[Claims] 1. In a die that sequentially extrudes and molds materials kneaded by an extruder, a flow path member having one intermediate flow path is placed in front of the extrusion nozzle of the die body connected in the extrusion direction of the extruder. 1. A material activation device in a food molding die, characterized in that the device is movable in a direction perpendicular to the extrusion direction, and is provided with a moving means for moving the channel member in a direction perpendicular to the extrusion direction.