JPS61280258A - Processing apparatus for feed in raising fish - Google Patents

Abstract

PURPOSE:To form a feed for raising fish into pellets having a specific fine grain size in one processing apparatus, by connecting a stirring chamber of the feed having stirring blades in a hopper to an extrusion chamber of the feed having an extrusion screw and granulating blades in a cylindrical housing in a specific state. CONSTITUTION:A concave curved surface bottom (b) of a hopper 11 and a convex curved surface tip (t) of a housing 13 are overlapped by a specific height dimension (H) to open and provide a communicating hole 14 of a stirring chamber (A) to an extrusion chamber (S). The cylindrical surface (d) of a feed extrusion screw 33 at the rotating shaft 34 is provided to satisfy a relation so that the surface (d) may be in a position at the same level as the assumed concave curved surface bottom (b) of the hopper 11 or go over the bottom (b) to enter the stirring chamber (A) a little. Thus, the sticking and depositing of the feed on the inner wall surface of the hopper 11 forming the stirring chamber (A) can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for mechanically processing feed for cultivating yellowtail, sea bream, horse mackerel, and other fish, and particularly for automatically and continuously extruding the feed using a single processing apparatus. When granulating pellets into fine pellets with a constant particle size, we completely prevent raw feed, especially frozen feed, from adhering to or accumulating on the inner wall of the hopper that forms the stirring chamber, and this is done efficiently. Moreover, it has been improved so that it can be granulated evenly.

Hereinafter, the specific configuration of the present invention will be described in detail based on the preferred embodiment shown in the drawings. Figures 1 to 5 show the type of feed processing equipment to be installed and used on the ship, and (10) is an angle steel material, etc. The installation frame (11) is a hopper fixedly installed in the upper center of the installation frame, which is integrated into a stable rectangular parallelepiped shape, as is clear from the enlarged view of Fig. 3.4.
The inside is the feed crushing and stirring chamber (A). The hopper (11) is elongated along the longitudinal direction of the installation frame (10) and has a funnel-shaped cross section, and feed is fed into it from above where it expands.

Relatively inexpensive natural animal feeds such as sardines are used as raw baits or frozen baits are used as hardened baits, and if necessary, artificial baits can also be used with the help of a binder. and put into a mixed state. (12)
3 is a cylindrical housing that extends in the direction perpendicular to the hopper (11), and is located directly below the hopper (11) in the center of the installation frame (10). The inside of the housing (13) is fixedly supported by the feed extrusion chamber (S), which is subjected to the above-mentioned crushing and stirring action. =, and the extrusion chamber (S) and the crushing/stirring chamber (A) are kept open and communicating with each other. That is, as extracted in FIGS. 6 to 8, the concavely curved bottom surface (b) of the funnel-shaped hopper (11) and the convexly curved top surface (1) of the cylindrical housing (13) are constant with each other. They are in a relationship where they overlap by the height dimension (H), and a communication port (14) is opened in the overlapping part, which is essentially a rectangle when viewed from above and below, so to speak, as if the whole is cut out. .

As a result, the circumferential surface (d) of the feed extrusion screw described later
However, the hopper (11) goes beyond the original virtual concave curved bottom surface (b) and slightly enters into the crushing/stirring chamber (A). However, the amount of penetration can be appropriately set in consideration of the relationship with the crushing blades and stirring blades, which will be described later. Moreover, the concave curved bottom surface (b) of the hopper (11)
) and the circumferential surface (d) of the extrusion screw are arranged at height-related positions that at least substantially match, the effects of the present invention described later can be achieved. (15) is a connection cover between the hopper (11) and the housing (13), and when the cover is in its low profile, the communication port (14)
).

Reference numeral (16) denotes a rotating shaft that is horizontally supported through the grinding/stirring chamber (A), and is rotationally driven by a hydraulic motor (17) from outside the hopper (11). (18) indicates the pressure oil switching valve, and (19) indicates the speed reducer. The communication port (1) in the rotating shaft (16)
4), a plurality of rotary crushing blades (20) are fixed in parallel (four in each case, a total of eight blades) in parallel, and the hopper ( 11)
The fixed crushing blade (21) protrudes from the inner wall surface of the crusher and the fixed crushing blade (21) can cut the bait into random shapes and sizes. (22) This is a mounting plate for commonly mounting a plurality of the fixed crushing blades (21), and is welded to the inner wall surface of the hopper (11), particularly near the bottom surface.

In this case, the rotary crushing blades (20) are in the form of a flat plate, and each of the four blades is projected from the boss (23) so as to form a straight line of 180 degrees, and all of them are oriented in the same direction. However, the number, arrangement form, direction of output, etc. are not limited to those shown in the illustration. (24) indicates a key, (25) indicates a fixing push bolt, and (θ) indicates an intersecting angle of action between the rotating crushing blade (20) and the fixed crushing blade (21).

(26) is the boss (23) in the rotary crushing blade (20).
) are a pair of left and right stirring blades extending from both ends of the rotating shaft (16) so as to rotate together with the rotary shaft (16), which sandwich the rotating crushing blade (20) between them, so to speak. A pair of linear crushing blades (20
) are facing each other in a positioning relationship that is perpendicular to the two.

Moreover, the stirring blades (26) are all connected to the hopper (11).
), the plate surface is twisted and curved in an arc shape as a whole, so as to correspond to the concavely curved bottom surface (b) of
The directionality of the curvature is determined to be opposite to each other on the left and right sides. In other words, the pair of stirring blades (26) stirs the feed in the crushing/stirring chamber (A) while moving the feed from left and right to the central position where the crushing blades (20) and (21) are present. It is constructed in such a way that the food can be collected and concentrated.

(27) is a plurality of (three in the example) support arms that support such stirring blades (26), each of which is made of a prismatic material, and whose protruding base end is connected to the rotating shaft (16).
) is welded to the boss (28) that is fitted and fixed to the stirring blade (26), and the tip is also fixed to the stirring blade (26) itself by bolts or the like. (29) is a plurality of notched blades (two in the example) provided in the middle of the stirring blade (26), each of which has a correspondingly protruding fixed blade from the inner wall surface of the hopper (11). Together with the blade (30), the stirring blade (26)
This also makes it possible to shear feed more efficiently. The stirring blade (26) is designed to perform both the above-mentioned stirring action and crushing action of the feed, and in that case, the notched blade (29) and the fixed blade (30)
It goes without saying that the number and arrangement of the stirring blades (26), the number and arrangement of the stirring blades (26) themselves, and the like are not limited to those shown in the figures, but can be adopted.

However, in the present invention, in order to achieve the purpose stated at the beginning, the concavely curved bottom surface (
The rotary crushing blade (20) as described above can be used as long as the stirring blade (26) rotating as close as possible to Alternatively, the fixed crushing blade (21) may be omitted, and only the stirring blade (26) which does not have a crushing effect may be installed, as shown in the modification shown in FIG. 9.10.

That is, in the configuration of the modified example, within the hopper (11), a pair of left and right stirring blades (2
6) are fixedly installed in an overall arcuate shape due to the twisting of the plate surface so as to correspond to the concavely curved bottom surface (b) of the hopper (11), and the direction of the curvature is Similar to the above, a pair of left and right sides are set in opposite directions. Moreover, a flat stirring bar (32), which is also supported by a support arm (31) made of a prismatic material, is fixed in a bridging state between the bosses (28). A pair of the flat bars (32) are connected to the stirring blades (
26) and the supporting arm (27) of the protruding tip in the first aspect.
As suggested from Figure 0, the rotary crushing blade (2
0), it faces directly above the communication port (14).

In any of the embodiments, a rotating shaft (34) of a screw (33) for pushing out the agitated feed is installed in the feed extrusion chamber (S) in a horizontal state. The housing (13) is rotatably driven by a separate hydraulic motor (35) from outside the housing (13). (36) is the pressure oil switching valve. The extrusion screw (33) is integrally protruded from its rotating shaft (34) and has a circular shape with the same diameter, but the helical pitch changes as it goes toward the tip in the extrusion direction. , has been gradually changed to become narrower. The feed after stirring is transferred from the hopper (11) to the communication port (14).
The purpose of the provision is to allow the subsequent granulation action to be carried out efficiently by receiving as much feed as possible into the extrusion chamber (S) of the housing (13) and compressing the feed as it is extruded. It is.

(37) is a plurality of parallel strips (8 in the figure) arranged in parallel on the inner wall surface of the housing (13) running in the longitudinal direction.
This is a feed release groove for the feed, and the excess amount during the granulation process is recycled in a so-called recycling manner. (M) is an extrusion screw (
The granulation blade is fixed to rotate integrally with the rotating shaft (34) at the extrusion end position of the feed according to 33), and is fitted and fixed to the inner wall surface of the housing (13) in a closed state. (38) Inner granulation blade (
39) and an outer granulating blade (40).

A large number of through holes (41) with a constant diameter are formed through the granulation plate (35), and a detent key is inserted between the housing (13) and the housing (13) on the circumferential surface thereof. (42) keeps it in a fixed state. The pair of inner and outer granulating blades (39) and (40) that sandwich this rotate, so that the feed extruded by the screw (33) is transformed into pellets of a constant particle size by mutually
It will be finely chopped. By the way, its size and shape are, for example, diameter: about 3 to 12 mm, length: about 4 to 18 mm.
It has a ++e cylindrical shape, but its particle size is adjusted to the above through hole (41).
Needless to say, it can be changed depending on the aperture size.

(43) is a short shaft for attaching both the granulation blades (39) and (40), which are screwed into the rotating shaft (34) of the screw (33) and integrated with the two granulation blades (39). ) (4
0) and are in a fitted state where they can rotate together. , (44) is a retaining cap fixed to the mounting short shaft (43) with a bolt (45), and (46) is the cap (44).
) and the outer granulating blade (40), and is a plate spring inserted between the outer granulating blade (40) and the granulating blade (M)
is suppressing. (47) is the housing (13) above.
It is a fixed ring that is screwed onto the open end of the handle in a crowned state, and is fastened so that it can be attached and detached by turning a tool or a handle. Therefore, by removing this, the granulating blade (M), granulating plate (38), etc. can be replaced and installed, and maintenance and inspection thereof can be easily performed. (
48) is a holding ring for the granulation plate (38), which is interposed between the plate (38) and the fixed ring (47).

In the case of the example shown, the granulation blade (M) is the granulation blade (M).
(38) has a pair of inner and outer sides that can be pinched, and several shearing blades that match each other correctly are projected! @(5th
(see figure), which allows the feed to be finely and reliably cut to a uniform particle size.
Of course, the number and arrangement of the blades, the number of granulating blades (M) themselves, etc. are not limited to the configuration shown in the figure. Moreover, although the model for use on ships has been explained, by adopting an electric motor or other rotational drive source in place of the above-mentioned hydraulic motors (17) and (35), the processing apparatus of the present invention can be used on land, so to speak. Of course, it can also be installed and used as is on the work floor of the processing plant.

As described above, the present invention uses a funnel-shaped hopper (A) that forms the stirring chamber (A) for the feed as a processing device for fish culture feed.
11), in which the rotating shaft (16) of the stirring blade (26) is horizontally installed, and a cylindrical housing (13) that forms an extrusion chamber (S) for the feed stirred within the stirring chamber (A).
A rotating shaft (34) of an extrusion screier (33) is installed in a horizontal state perpendicular to the rotating shaft (16), and the feed is placed at a feed extrusion end position of the rotating shaft (34) in a constant particle size. At the same time, the concavely curved bottom surface (b) of the hopper (11) and the convexly curved top surface (1) of the housing (13) are Height dimension (H
), and by creating a communication port (14) between the stirring chamber (A, ) and the extrusion chamber (S), as if cutting out the overlapping part, the feed at the rotating shaft (34) is made to overlap. Extrusion screw (3
The circumferential surface (d) of 3) is at the same height as the virtual concave curved bottom surface (b) of the hopper (11), or slightly extends into the stirring chamber (A) beyond the bottom surface (b). Since the relationship is set as follows, the hopper (1) that forms the stirring chamber (A)
1) Adhesion and accumulation of feed on the inner wall surface is reliably prevented, and the feed can be efficiently processed.

In other words, if you add nutrients to live bait and mix artificial bait with it, and also add a caking agent to it, or if you add frozen bait, in the former case, the caking force will cause the bait to stick to the bottom of the hopper (11). It adheres and remains on the inner wall surface nearby, and in the latter case, as a result of not being radiated, the frozen baits may refreeze each other and form clumps, and furthermore, they may also accumulate and remain on the inner wall surface of the hopper (11). According to the above configuration of the present invention, the hopper (11) and the housing (1
A communication port (14) between the stirring chamber (A, ') and the extrusion chamber (S) is opened so as to cut out the overlapping part with the extrusion screw (33) in the housing (13). ) is the circumferential surface (d) of the hopper (1
1) Since the relationship is set so that it faces substantially the same height position as its own original virtual concave curved bottom surface (b), the stirred feed is transferred from the hopper (11) to the housing (13).
It is possible to drop the hopper (11) smoothly and without any leakage, as if it were inserted directly into the hopper (11), especially near the bottom of the inner wall.
This means that there is no time or space for the feed to adhere to or accumulate on the connection cover (15) between this and the housing (13), and granulation can be carried out extremely efficiently and evenly and completely. .

Moreover, the circumferential surface (d) of the extrusion screw (33) faces the virtual concave curved bottom surface (b) of the hopper (11) at substantially the same height position, so that it is inside the stirring chamber (A). The stirring blade (26) of the hopper (11) is connected to the concave bottom surface (
b), and can be placed as close as possible to the extrusion screw (3) in the housing (13).
3) can also be set as large as possible in diameter, allowing the various actions of stirring and extrusion to be performed with high efficiency, effectively preventing retention of feed, and reducing the overall size of the device. However, it can be made smaller and more compact with a lower cavity, which is extremely beneficial in terms of installation stability and especially in terms of installation on small ships.

In addition, crushing blades (20) and (21) are also installed in the hopper (11) in addition to the stirring blades (26), and the hopper (
If the feed crushing/stirring chamber (A) is generated by 11), it will be possible to perform the granulation process more efficiently and smoothly in a shorter time when granulating the feed per unit amount. . In that case, especially rotating grinding blades (20
) is in the form of a flat plate, and the plurality of sheets are connected to the above-mentioned communication port (14).
are fixed in parallel to the center position of the rotating shaft (16) facing directly above the
A hopper (11
A pair of stirring blades (2) have an arcuate shape corresponding to the concavely curved bottom surface (b) of
6) is also fixedly installed in the hopper (11), and together with the rotating crushing blade (20) and stirring blade (26), a plurality of fixed blades (21) (30) shear the feed.
If it is made to protrude integrally from the inner wall surface, the above-mentioned effects can be achieved even more significantly, and it can be said to be of great practical benefit.

[Brief explanation of drawings]

FIG. 1 is an overall schematic front view of a feed processing device according to the present invention;
Figure 2 is a schematic side view of the entire hopper, Figure 3 is an enlarged plan view showing the inside of the hopper, and Figure 4 is the same as in Figure 3.
5 is an enlarged sectional view taken along line V-V in FIG. 4, and FIG. 6 is a side sectional view extracting the state of connection between the hopper and the housing. , FIG. 7 is a sectional view taken along the line ■-■ in FIG. 6, and FIG. 8 is a plan view,
Figure 9 is an enlarged plan view of a modification corresponding to Figure 3;
The figure is a partially cutaway sectional view taken along the line xx in FIG. 9. (10)...Installation frame (11)...Hopper (13)...Housing (]4)...Communication port (15)... ... Connection cover (16) (34) ... Rotating shaft (20) ...
... Rotating crushing blade (21) (30) ... Fixed crushing blade (26)
... Stirring blade (33) ... Extrusion screw (38) ... Granulation plate (A) ... Stirring chamber (S) ... Extrusion chamber (H) ... Height dimension (M) ... Granulation blade (b) ... Concave curved bottom (d) ... Screw circle Peripheral surface (1) ・
... Convex curved top surface patent applicant Moriyoshi Co., Ltd. Figure 10 JJ-J Figure 7 Figure 8

Claims (1)

[Claims] 1. A funnel-shaped hopper (11
), the rotating shaft (16) of the stirring blade (26) is horizontally installed inside the cylindrical housing (13) that forms the extrusion chamber (S) for the feed stirred in the stirring chamber (A). , the above rotating shaft (1
The rotating shaft (34) of the extrusion screw (33) is installed in a horizontal state orthogonal to 6), and the feed is finely cut into pellets of a constant particle size at the feed extrusion end position of the rotating shaft (34). While fixing the granulation blade (M), the concavely curved bottom surface (b) of the hopper (11) and the convexly curved top surface (t) of the housing (13) are connected to a certain height dimension (H
), and the overlapping part is cut out, so to speak, so that the stirring chamber (A)
By opening a communication port (14) between the feed extrusion screw (33) and the extrusion chamber (S),
) so that the circumferential surface (d) of the hopper (11) is at the same height as the virtual concave curved bottom surface (b), or slightly extends beyond the bottom surface (b) into the stirring chamber (A). A processing device for fish culture feed, characterized in that it is set in relation to. 2. In the funnel-shaped hopper (11) that forms the feed crushing and stirring chamber (A), the crushing blade (20) and the rotation shaft (16) of the stirring blade (26) are horizontally installed, while the crushing and stirring The rotating shaft (1) is placed in a cylindrical housing (13) that forms a chamber (S) for extruding the feed crushed and stirred in the stirring chamber (A).
The rotating shaft (34) of the extrusion screw (33) is installed in a horizontal state orthogonal to 6), and the feed is finely cut into pellets of a constant particle size at the feed extrusion end position of the rotating shaft (34). While fixing the granulation blade (M), the concavely curved bottom surface (b) of the hopper (11) and the convexly curved top surface (t) of the housing (13) are connected to a certain height dimension (H
), and by opening a communication port (14) between the crushing/stirring chamber (A) and the extrusion chamber (S) in the overlapping part, as if by cutting out the above-mentioned rotation. The circumferential surface (d) of the feed extrusion screw (33) on the shaft (34) is positioned at the same height as the virtual concave curved bottom surface (b) of the hopper (11), or the bottom surface (
A processing device for fish culture feed, characterized in that the feed is allowed to enter the crushing/mixing chamber (A) slightly beyond the point (b). 3. A rotating shaft (16) installed horizontally into the funnel-shaped hopper (11) that forms the feed crushing and stirring chamber (A).
A plurality of flat crushing blades (20) are fixed in parallel at the central position of the rotating shaft (16), and hoppers (
A pair of stirring blades (26) having an arcuate shape corresponding to the concave curved bottom surface (b) of 11) and facing each other in order to gather the feed to the central position where the crushing blade (20) is present are fixed; A plurality of fixed blades (21) (30) shear the feed in conjunction with the rotating crushing blade (20) and stirring blade (26).
) integrally protrudes inward from the hopper (11), and into a cylindrical housing (13) forming an extrusion chamber (S) for the feed crushed and stirred in the crushing and stirring chamber (A). , together with a granulation plate (38) fitted and fixed to the housing (13) at the feed extrusion end position of the extrusion screw rotation shaft (34) installed in a horizontal state perpendicular to the rotation shaft (16). Therefore, a granulating blade (M) for finely cutting the feed into pellets of a constant particle size is fixed, and the concave curved bottom surface (b) of the hopper (11) and the convex curved top surface of the housing (13) are fixed. (t) and a constant height dimension (H
), and by creating a communication port (14) between the crushing/stirring chamber (A) and the extrusion chamber (S) in the overlapping part, as if by cutting out the rotating shaft (34). ) in the feed extrusion screw (33
) is at the same height as the virtual concave curved bottom surface (b) of the hopper (11), or slightly into the crushing and stirring chamber (A) beyond the bottom surface (5). A processing device for fish culture feed, characterized in that the relationship is set so as to allow the feed to be processed.