JPS6331322B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cutter suitable for removing, for example, shellfish attached to the surface of bivalves.

(Conventional technology) Other shellfish such as crow shells and barnacles tend to adhere to the surface of bivalves used for pearl culture such as Akoya shellfish, and if left untreated, the growth of cultured shellfish will be impaired. A method is used in which deposits adhering to the surface of cultured shellfish are removed by using a cutter having a large number of wart-shaped cutting blades protruding from the rotating circumferential surface.

(Problems to be Solved by the Invention) However, when conventional cutters are used as cutters for cultured shellfish, for example, the shape of the cutting blade used differs depending on the size of the cultured shellfish and the type and size of the deposits. In addition, conventional cutters have a rotating body and a cutting blade that are integrated, so when you hold a bivalve in your hand and press the cutter to remove the deposits, the bivalve receives direct reaction from the cutter. This resulted in problems such as large vibrations being transmitted to the shellfish itself, which had an adverse effect, and the shellfish being accidentally scratched or damaged by the recoil. Furthermore, since the shape of the cutting blade is determined to be one type, there is a problem in that cutting blades of different shapes cannot be combined into one cutter as necessary.

(Means for Solving the Problems) The present invention has been made by focusing on such conventional problems, and includes a cushioning material interposed on the outer circumferential part of the shaft cylinder of the side plate, and a cushioning material on the outer peripheral surface of the shaft cylinder. By using a structure with multiple removable cutting blade bodies with protruding cutting blades, the reaction force received by the shellfish can be absorbed by the cushioning material, and cutting blades with different shapes can be combined as necessary. The purpose is to solve the above problems by making it possible to make changes.

In order to achieve the above-mentioned object, the present invention includes a shaft shell 2 which has a protruding hole 2a for insertion into the rotating shaft of a drive source at the center thereof, and a plurality of inner holes arranged at equal intervals on the outer circumferential surface of the shaft shell 2. A side plate 1 having a groove 3 formed therein, and the shaft body 2
A cushioning material 8 is interposed between the outer grooves 7 formed on the inner circumferential surface with a different phase at a predetermined angle so as to correspond to the inner groove 3. , and is characterized by consisting of a cutting blade body 5 in which a plurality of cutting blades 4 are protruded from the outer peripheral surface at equal intervals and a plurality of laminated cutting blade bodies 5, and a cover plate 10 that holds each cutting blade body 5 together with the side plate 1. There is.

(Operation) The operation of the present invention configured as described above will be described.

A shaft body 2 having a plurality of inner grooves 3 protruding from the side plate 1 has a gap 9 therein, and outer grooves 7 corresponding to the inner grooves 3 are provided on the inner circumferential surface, and the outer circumferential surface is cut. By inserting and inserting a plurality of cutting blade bodies 5 each having a large number of protruding blades 4, and interposing a cushioning material 8 between the inner groove 3 and the outer groove 7, each cutting blade 5 can be cut independently. In addition, each cutting blade body 5
Attaching and detaching is optional.

(Example) Examples of the present invention will be described below based on the drawings. In Figures 1 and 2, reference numeral 1 denotes a side plate of the cutter, and a shaft barrel 2 is protruded from the center of one side of the side plate 1, and an insertion hole 2a for a rotating shaft of a drive source (not shown) is provided at the shaft center. is penetrated. A plurality of substantially semicircular inner grooves 3 are formed at equal intervals on the outer peripheral surface of the shaft barrel 2 . On the outer periphery of the shaft barrel 2, a plurality of ring-shaped cutting blade bodies 5 (five in the embodiment) each having a large number of cutting blades 4 protruding from the circumferential surface at equal intervals are laminated and phased at a predetermined angle. As shown in FIGS. 4 and 5, this cutting blade body 5 is provided with a circular hole 6 having a slightly larger diameter than the shaft barrel 2, and the inner peripheral surface of the circular hole 6 is inserted differently. A plurality of substantially semicircular outer grooves 7 corresponding to the inner grooves 3 of the shaft barrel 2 are formed with different phases at a predetermined angle. When these cutting blade bodies 5 are inserted into the shaft barrel 2 as shown in FIGS. 2 and 3, a circle made of an elastic material such as urethane or rubber is formed between the corresponding inner groove 3 and outer groove 7. A tubular buffer material 8 is interposed to form a constant gap 9 between the outer circumferential surface of the shaft barrel 2 and the inner circumferential surface of the cutting blade body 5. Then, by stacking and inserting each of the cutting blades 5 into the shaft barrel 2 with the outer grooves 7 having different phases, the cutting blades 4 of each cutting blade 5 are aligned as shown in FIG. 6a. The shapes are sequentially shifted by a predetermined angle.

In each cutting blade body 5, as shown in FIGS. 4 and 5, six outer grooves 7 are formed with a phase difference of 7.5 degrees between the outer grooves 7, and the deviation of the cutting blade 4 is By setting the angle to 7.5 degrees and making the number of each cutting blade 4 of the cutting blade body 5 24 teeth, each cutting blade body 5 moves the adjacent straight cutting blade 4 as shown in FIG. 6a. It can be arranged as follows.
In addition, 10 is a cover plate, which is fixed to the end face of the shaft body 2 of the side plate 1 with a countersunk screw 10a to connect the side plate 1 and the cover plate 10.
Each cutting blade body 5 is held between the two.

Figures 6b and 6c show other embodiments of the cutting blade. Figure 6a has a straight cutting blade, while Figure 6b has a spiral cutting blade 4a tilted to the right and a spiral cutting blade 4a tilted to the left. FIG. 6c shows a cutting blade body 5 in which spiral cutting blades 4b are arranged alternately and in a staggered manner.
is made up of a cutting blade body 5 which is a combination of a straight cutting blade 4 and spiral cutting blades 4a and 4b. In addition, the arrangement and combination of the cutting blade bodies 5 can be freely arranged other than in the above-mentioned embodiments as required.

7 and 8 show an example in which the cutter according to the present invention (in the example, the cutter shown in FIG. 6a) is applied to a device for removing deposits on the surface of bivalve molluscs, and the insertion hole 2a of cutter A is The rotating shaft 11 is inserted into the rotating shaft 11 and fixed with a nut 12, and the rotating shaft 11 is held through the bearing part 13, and the bearing part 13 is supported by the arm 14, and the arm 14 uses the supporting part 15 at the base end as a fulcrum. Bearing plates 17, 17 are mounted on the machine frame 16 so as to be able to swing vertically (Fig. 8).
It is supported by A shaft rod 1 is located in the middle of the arm 14.
The upper end of 8 is held, and the shaft 18 passes freely through the machine frame 16 and a stopper 19 is provided at the lower end.
Coil springs 20a and 20b serving as cushioning means are stretched between and the stopper 19, respectively. This allows the arm 14 to be held in a cushioned manner. A pulley 21 is provided at the other end of the rotating shaft 11, and a belt 24 is connected to the pulley 21 and the output shaft 23 of the motor 22.
is hanging around. 25 is a rotation speed variable device for the motor 22.

Next, the operation will be explained. When the motor 22 is started, the cutter A is rotated via the belt 24, and then the cutter A is rotated as shown by the imaginary line in FIG.
A cultured shellfish 26 held by hand is brought close to the shell from below, and adhering matter 27 such as crow shellfish adhering to the surface of the shellfish is pressed against the cutting blade 4 to be cut and removed. At this time, by pressing the deposit 27 against the cutting blade 4, the cutter A springs against the coil springs 20a and 20 according to the pressing force.
The vibration received by the cutting blade 4 while being pushed up against the spring force of 0b can be absorbed independently by each cutting blade body 5 within the range of the gap 9 by the buffer material 8, and as a result, the shellfish itself Large vibrations and recoil caused by cutting are suppressed, making it possible to effectively remove deposits. The cutting blade 4 of the cutter can be freely changed in shape and combination depending on the size of the cultured shellfish and the type and shape of the deposits.
By removing 0, each cutting blade body 5 can be attached and detached.

Although the cutter of the present invention has been described as an example in which it is used in an apparatus for removing deposits on the surface of shellfish, it can be widely applied to other cutters that require cutting.

(Effects of the Invention) As explained above, according to the present invention, a cushioning material is interposed on the outer periphery of the shaft barrel of the side plate, and a plurality of removable cutting blade bodies having cutting blades protruding from the outer periphery are provided. This type of cutter reduces vibration and reaction to the object to be cut, and allows cutting blades of different shapes to be freely combined as needed. It is extremely suitable for use in cutting and removing deposits since it can be used to effectively remove deposits.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, in which Fig. 1 is a longitudinal sectional view of the cutter, Fig. 2 is a plan view with the lid removed, Fig. 3 is a perspective view showing the assembled state, and Fig. 4 is a longitudinal sectional view of the cutter. FIG. 5 is a plan view of one cutting blade, and FIG. 6 is a plan view of one cutting blade provided with an outer groove that is out of phase with the outer groove of the cutting blade in FIG. 7 is a partially enlarged front view showing various combinations of cutting blades, FIG. 7 is a plan view of the device showing an example of how the cutter is used, and FIG. 8 is a side view of the same. In the figure, 1 is a side plate, 2 is a shaft body, 2a is an insertion hole, 3
4 is an inner groove, 4 is a cutting blade, 5 is a cutting blade body, 7 is an outer groove, 8 is a buffer material, 9 is a gap, and 10 is a cover plate.

Claims (1)

[Scope of Claims] 1. A side plate having a protruding shaft cylinder having a hole for inserting the rotating shaft of the drive source in the center thereof, and a plurality of inner grooves formed at equal intervals on the outer peripheral surface of the shaft cylinder. and a buffer material is interposed between the outer grooves formed on the inner circumferential surface with a different phase at a predetermined angle so as to correspond to the inner groove, and the outer circumferential part of the shaft barrel is mounted with a gap therebetween. A cutter comprising a plurality of laminated cutting blades with a large number of cutting blades protruding from the outer peripheral surface at equal intervals, and a lid plate that holds each cutting blade together with the side plate. 2. The cutter according to claim 1, wherein the cutting blade of each cutting blade body is a straight cutting blade, and is arranged in a staggered manner with the adjacent cutting blades. 3. The cutter according to claim 1, wherein the cutting blades of each cutting blade body are spiral-shaped cutting blades that are alternately inclined to the right or to the left, and are arranged in a staggered manner with adjacent cutting blades. 4. The cutter according to claim 1, wherein the cutting blade of each cutting blade body is a combination of a tossled cutting blade and a spiral cutting blade.