JPH0417039Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] For example, frozen fish slabs are used as feed for farmed fish, and conventionally, the frozen slabs have been thawed and then finely ground to be fed to farmed fish. It is normal to do so. However, the fish meat, blood, and oil in the feed obtained in this way are separated, resulting in disadvantages such as a decrease in the actual amount of feed and water pollution. Therefore, recently, slabs are shredded while frozen, and the frozen fragments are fed to farmed fish as feed.

The present invention relates to a frozen slab shredding device that is suitably used for cutting frozen slabs obtained by cutting frozen fish into plate shapes into small pieces suitable for use as fish feed.

[Conventional technology]

As a conventional shredding device of this type,
As disclosed in No. 5119, a rotary disk that is driven to rotate in a fixed direction around a horizontal axis is disposed in a shredding case, and a slab is opened in the front wall of the shredding case directly facing the surface of the rotary disk. In addition to opening a supply port, a slab feeding chute is connected to the slab feeding port horizontally or in an inclined form close to this, and a slab feeding roll with a protrusion that is rotationally driven is disposed inside the chute to rotate. A blade window formed on the disk is equipped with a horizontal cutting blade whose cutting edge protrudes a predetermined amount from the surface of the rotating disk and a plurality of vertical cutting blades whose cutting edges are positioned on the back surface of the rotating disk. is well known.

According to this shredding device, the frozen slabs supplied to the slab input chute are sent into the shredding case from the slab supply port by the protrusion of the slab feed roll, and the horizontal blades on the surface of the rotary disk are removed. When the frozen slab comes into contact with the cutting surface, which is the rotation locus region, as the rotary disk rotates, the frozen slab end portion (hereinafter referred to as the "shredded end portion") that is in contact with the cutting surface of the rotary disk first ) is cut into thin pieces by a horizontal blade.
This cut thin piece is then thrown into the blade window by the rotational force of the rotary disk and collided with the vertical blade.
It is shredded into small pieces by multiple vertical blades.

[The problem that the idea attempts to solve]

However, in such conventional devices, since the slab is cut into thin pieces by the side blades, large cutting resistance acts on the side blades, which poses problems in terms of strength and durability.

Furthermore, since the cut flakes that are thrown into the blade window are shredded by the collision action with the vertical blade, in other words, the cut flakes are not held in any way and are subjected to the shredding action by the vertical blade, so the cut flakes are finely cut. The disconnection becomes extremely unstable. Therefore, there is a problem in that the size and shape of the pieces are not constant, making it difficult to cut the frozen slab into pieces of predetermined size.

An object of the present invention is to solve these problems and provide a frozen slab shredding device that can easily and effectively shred frozen slabs.

[Means to solve the problem]

The frozen slab shredding device of the present invention, which solves this problem, has a rotary disk that is driven to rotate in a constant direction with a fragment discharge window that extends in the radial direction of the rotary disk. A cutting horizontal blade extending in the direction opposite to the rotational direction of the cutting blade is arranged, and a plurality of cuts are arranged parallel to each other in the radial direction of the rotating disk on the side of the horizontal blade in the rotational direction of the rotating disk. A vertical blade is provided, and the cutting edge of the horizontal blade protrudes a predetermined amount from the surface of the rotary disk, and the cutting edge of the vertical blade is made to protrude further than the cutting edge of the horizontal blade, so that the end portion of the frozen slab to be shredded is The structure is such that parallel cuts are made using a vertical blade, and then cutting is performed using a horizontal blade.

In such a device, the vertical cutting blade can be arranged in the fragment discharge window together with the horizontal cutting blade. In this case, the horizontal cutting blade is brought into contact with the vertical cutting blade only at its cutting edge, and between the facing surfaces of the horizontal blade and the vertical blade there is a thin strip that spreads from the contact area of the two blades toward the back side of the rotary disk. It is preferable to form a fragment escape space.

Further, the vertical cutting blade may be placed a predetermined distance apart from the horizontal cutting blade in the rotational direction of the rotary disk without being placed in the fragment discharge window.

[Effect]

When the end of the frozen slab to be shredded comes into contact with the cutting surface, which is the rotation locus area of the horizontal blade on the surface of the rotary disk, as the rotary disk rotates, the end to be shredded first has a vertical blade. multiple cuts are made. Then, the portion where the cut was made is subsequently cut by the horizontal blade. This action continues until the end portion to be shredded is cut off by the horizontal blade,
As a result, the end portion of the frozen slab to be shredded is shredded into small pieces with a width corresponding to the mutual spacing of the vertical blades and a thickness corresponding to the amount of protrusion from the cutting surface of the horizontal blades. The fragments are discharged from the fragment discharge window to the back side of the rotary disk.

Since the cutting action by the side blade is performed on the cut portion, no large cutting resistance acts on the side blade, and the cutting action can be performed extremely easily. Therefore, in terms of strength as mentioned at the beginning,
There are almost no durability problems. Further, the shredding action by the plurality of vertical blades is not performed on the cut flakes separated from the frozen slab as in the conventional device, but is performed prior to the cutting action by the horizontal blades, that is, the shredding action is performed on the cut flakes separated from the frozen slab. Since the process is carried out on the end portion to be shredded which has not yet been shredded, it is possible to reliably and easily obtain thin pieces of a desired constant size.

By the way, when the vertical blade for cutting is placed in the fragment discharge window together with the horizontal blade for cutting, only the cutting edge of the horizontal blade is brought into contact with the vertical blade, and the two blades are placed between the facing surfaces of the horizontal blade and the vertical blade. If a fragment relief space is formed that spreads from the abutting part to the back side of the rotary disk, the fragments will be guided from the cutting edge of the horizontal blade to the escape space and ejected from the fragment release window. Become. Therefore, the fine pieces do not get stuck between the vertical blades, the shredding action is performed smoothly, and fine pieces of uniform size without variation can be obtained.

In addition, by arranging the vertical blade for cutting at a predetermined distance from the horizontal cutting blade in the direction of rotation of the rotary disk, there will be no inconvenience such as small pieces getting stuck between the vertical blades.
It is possible to further improve the smoothness of the shredding action and the uniformity of the fine pieces.

〔Example〕

Hereinafter, the structure of the present invention will be specifically explained based on the embodiments shown in FIGS. 1 to 4. This embodiment relates to an example in which the present invention is applied to a shredding device used to obtain frozen fine pieces of optimal size as fish feed from frozen fish slabs.

In the frozen slab shredding device shown in Fig. 1,
1 is a base, 2 is a shredding case attached to the base 1, 3 is a disc-shaped rotary disk disposed inside the shredding case 2, and 4 is a rotation for adjusting the axial position of the rotary disk 3. A plate position adjustment mechanism 5 moves the rotary plate 3 in a certain direction (A
6 is a slab feeding chute for feeding frozen slabs 7 into the shredding case 2.

As shown in FIGS. 1 and 2, the shredding case 2 is box-shaped with an inclined shred discharge chute 8 formed at its lower part, and a slab holding wall 9 serving as a front wall has a rectangular slab supply wall. Port 9a is opened. This slab supply port 9a is connected to a cutting surface 3 which is a rotation locus area of a horizontal blade 13, which will be described later, on the surface of the rotary disk 3.
It is directly opposed to a. Furthermore, an arcuate cover body 10 is provided on the side wall of the shredding case 2 and extends closely along the circumferential surface of the lower half of the rotary disk 3 . This cover body 10 is rotatably supported by pivots 10a, 10a, and is designed so that it can be rotated to a rear position where it does not get in the way during cleaning (dashed line in FIG. 1).

As shown in FIG. 1, the rotary disk 3 has a rotary shaft 11 fixed to its center and horizontally supported by bearings on the base 1, and is rotated in the direction A on a vertical plane by a drive mechanism 5, which will be described later. It is designed to be driven.

As shown in FIG. 2, this rotary disk 3 is provided with a plurality of (three in this embodiment) fragment discharge windows 12 extending radially in the radial direction from a portion near the center. Note that the longitudinal end surface 1 of each emission window 12
As shown in FIG. 3, 2a and 12b are formed into inclined surfaces that are inclined toward the front (downward in FIG. 3) and toward the A direction.

As shown in FIGS. 2 and 3, in each discharge window 12, a single-edged horizontal cutting blade 13 extending in the radial direction of the rotary disk 3 extends its cutting edge 13a a predetermined distance from the upper surface of the rotary disk 3. A plurality of double-edged vertical cutting blades 14 are arranged in a protruding state and are arranged in parallel at a predetermined interval in the longitudinal direction of the horizontal blade 13.
The cutting edge 14a is arranged so as to protrude slightly from the cutting edge 13a of the horizontal blade 13. Horizontal blade 1
3 is in a state where its back surface is attached to the longitudinal end surface 12a on the counter-rotation direction side of the emission window 12, that is, in an inclined state where it can bite in the counter-rotation direction,
It is fixed to a holder 15 fixed to the back surface of the rotary disk 3 via fixing bolts 16 . . . , 17 . . . and a blade holder 18 . Further, each vertical blade 14 is implanted in a blade holder 18, and is fixed to the holder 15 in a state in which it abuts orthogonally to the surface of the horizontal blade 13.
Furthermore, the insertion holes 13b and 13c for each bolt 16 and 17 in the horizontal blade 13 and the insertion hole 18a for each bolt 17 in the blade holder 18 are formed into long holes, respectively, and the amount of protrusion of the horizontal blade 13 with respect to the cutting surface 3a is formed. Also, the amount of protrusion of the vertical blade 14 relative to the horizontal blade 13 can be adjusted.

The rotary disk position adjustment mechanism 4, as shown in FIG.
A pair of front and rear bearing bodies 1 supporting the rotating shaft 11 with bearings
9 and 20 are supported so as to be slidable back and forth on a horizontal rail 21 laid on the base 1, and a female screw body 22 attached to one bearing body 19 is a screw that is rotatably provided on the base 1. The rotary shaft 11 and the bearing bodies 19, 20 are screwed together with the shaft 23, and by rotating the handle 23a of the screw shaft 23 and threading the female screw body 22 onto the screw shaft 23, the rotating shaft 11 and the bearing bodies 19, 20 are It is configured so that it can be moved in the front-rear direction to change and adjust the axial position of the rotary disk 3 and thus the facing distance between the cutting surface 3a and the slab holding wall 9.

The drive mechanism 5 includes a rotating shaft 11 as shown in FIG.
and the output shaft of the drive motor 24 are interlocked and connected via sprocket wheels 25, 26 and an endless chain 27, and regardless of the position change of the rotary shaft 11 by the rotary disc position adjustment mechanism 4, the rotary disc 3 can be moved to A. It is configured so that it can be rotationally driven in the direction.

As shown in FIG. 1, the slab charging chute 6 is
It has a rectangular cylindrical shape connected to the slab supply port 9a in an inclined manner, and has a plurality of projection rolls 2 inside.
8... are arranged. Feed roll 28...
is rotationally driven in the direction of the arrow by a drive motor 29, and is configured so that the frozen slab 7 fed into the chute 6 can be fed into the shredding case 2 from the slab supply port 9a.

In the shredding device configured in this way, the frozen slab 7 is fed into the shredding case 2 from the slab input chute 6, and the end portion 7a to be shredded is placed on the cutting surface 3a of the rotary disk 3. When brought into contact, the rotary disk 3
As the blade rotates, cuts 7b are first cut in the end portion 7a to be shredded by the vertical blades 14 (FIG. 4A). The portion 7'a in which the cut 6b has been made in this way is subsequently subjected to the cutting action of the horizontal blade 13 and is cut (FIG. 3B). At this time,
The cut portion is guided into the discharge window 12 along the surface of the side blade 13. Then, when the portions 7'a in which the cuts 7b have been made are separated from the frozen slab 7 by the horizontal blade 13, each portion 7'a is separated by the cuts 7b.
. . . It is separated into small pieces 7c, which are divided into small pieces 7c, and are scattered and released on the back side of the rotary disk 3. The scattered fragments 7c... are supplied falling to a discharge chute 8, and are discharged from the chute 8 to the outside of the shredding case 2.

In this way, since the cutting action by the side blade 13 is performed on the portion 7'a where the cut 7b is made, the cutting action is performed on the side blade 13, compared to the case where the frozen slab is directly cut as in the conventional device. Cutting resistance is extremely low and cutting can be carried out smoothly and reliably. Moreover, it is not necessary to design the strength of the side blade 13 and the strength of holding it to the holder 15 to be larger than necessary, and a good shredding function can be exhibited over a long period of time.

Also, the cutting action by the vertical blade 14...
Since the cutting action is carried out prior to the cutting action by No. 3, the cutting action is performed in an extremely stable state compared to the case where the cutting action is performed on the cutting thin piece as in the conventional device.

Therefore, the amount of protrusion of the cutting edge of the horizontal blade 13 and the vertical blade 1
It is possible to reliably and satisfactorily obtain the fine pieces 7c... which are precisely shredded to a size corresponding to the mutual spacing of 4....

Note that the size of the fish feed obtained as the fine pieces 7c needs to be changed depending on the growth level of the cultured fish, but the size adjustment of the fine pieces 7c is based on the cutting thickness of the horizontal blade 13. This can be done by changing the amount of protrusion. At this time, as the protrusion amount of the horizontal blade 13 is changed, the vertical blade 14
It goes without saying that the amount of protrusion of the blades 13 and 14 should also be adjusted, but when adjusting the position of each blade 13, 14, the rotary disc position adjustment mechanism 4 adjusts the position of the rotary disc 3.
It is also preferable to adjust the distance between the slab retaining wall 9 and the slab retaining wall 9.

That is, since the frozen slab portion protruding from the slab supply port 9a, that is, the end portion 7a to be shredded, is in a free state where it is not held by the slab inputting chute 6, it is not held by the horizontal blade 13 or the vertical cutter without adjusting the above-mentioned interval. If the amount of protrusion of the blades 14 is reduced, the distance between the slab cutting action point of each blade 13, 14 and the slab support point of the slab supply port 9a will become larger than necessary, and the blades 13, 14 of the end portion 7a to be shredded will
There is a risk that the cutting and chopping action by the blades 14 may not be carried out smoothly, and conversely, if the amount of protrusion of each of the blades 13 and 14 is increased, the blade edges 13a and 14a may interfere with the slab holding wall 9. . Therefore, the distance between the rotary disk 3 and the slab holding wall 9 is such that each blade 13, 1
Regardless of the amount of protrusion 4, it is preferable to adjust the distance between the slab cutting point and the slab support point to be maintained constant.

By the way, the fragment 7c is the cutting edge 13a of the horizontal blade 13.
It passes between the adjacent vertical blades 14 and is emitted from the ejection window 12. Therefore,
The small pieces 7c may become stuck between the adjacent vertical blades 14, since they are frozen particles. If such a situation occurs, the shredding action will not be carried out smoothly and the shredded pieces 7
There will be variations in the size of c.

However, this problem can be reliably solved by devising the arrangement of the horizontal blade 13 and the vertical blade as follows.

That is, as shown in FIG. 5, an L-shaped mounting base 42 on which the vertical blades 14 are installed is fixed to the rear surface of the rotary disk on the opposite side of the holder 15 with respect to the discharge window 12.
3, the horizontal blade 13 is brought into contact with the vertical blade 14 only at its cutting edge 13a, and the double blades 13, 14 are placed between the facing surfaces of the horizontal blade 13 and the vertical blade 14.
A fragment relief space 44 is formed that extends from the abutting portion to the back side of the rotary disk 3. In addition, the horizontal blade 13 is
Unlike the above embodiment, the blade holder 18 is directly fixed 45 to the holder 15 without using the blade holder 18. Further, the insertion hole 13d for the bolt 44 in the horizontal blade 13 and the insertion hole 42a for the bolt 43 in the mounting base 42 are each formed into a long hole, and an adjustment liner 46 is provided between the rotary disk 3 and the mounting base 42. They are inserted so that the amount of protrusion of the horizontal blade 13 with respect to the cutting surface 3a and the amount of protrusion of the vertical blade 14 with respect to the horizontal blade 13 can be adjusted respectively.

If this is done, the thin pieces 7c will be removed from the horizontal blade 13.
It is guided from the cutting edge 13a portion along the surface of the horizontal blade 14 to the escape space, and is emitted from the emission window 12 without being brought between the adjacent vertical blades 14, 14. Therefore, the thin pieces 7c are the vertical blades 14,
There is no clogging between the holes 14, and the shredding operation is performed smoothly, and fine pieces 7c of uniform size without variation can be obtained.

Also, the vertical blade 14... is not placed in the emission window 12,
It may be arranged at a predetermined distance from the horizontal blade 14 in the A direction.

For example, as shown in FIGS. 6 and 7, blade windows 12' are placed on the rotary disk 3 at a substantially intermediate position between the discharge windows 12, 12, and extend in the radial direction of the rotary disk 3.
... are bored and a standing blade 13 ... is arranged in each blade window 12'.

If you do this, the thin pieces 7c will be the vertical blade 1.
There was no inconvenience caused by getting stuck between 4 and 14.
It is possible to further improve the smoothness of the shredding action and the uniformity of the fine pieces 7c. In addition, when the position adjustment of the vertical blade 13 is not required, the vertical blade 13 can be directly planted on the rotary disk 3 without providing the blade window 12'. In addition, if there is no problem with the strength of the rotary disk 3, the width of the ejection window 12 may be increased and the double-edged blade 1
3 and 14 may be arranged in the emission window 12 in a spaced-apart manner.

Furthermore, the shredding device according to the present invention can be configured to rotate the rotary disk 3 in a fixed direction around a vertical axis or an inclined axis close to this.

For example, as shown in FIGS. 8 and 9, the shredding case 2, rotary disk 3, rotary disk position adjustment mechanism 4, and slab inputting chute 6 are configured as follows. In the following description, the same reference numerals are given to the parts having the same configuration as in the above embodiment, and the details thereof will be omitted.

The shredding case 2 includes a case main body 30 with an upper opening fixed on the base 1, and a pivot 9'b that is rotatable upwardly at the side end of the main body 30. It consists of a lid 9' corresponding to the slab holding wall 9 which is horizontally placed and fixed on the upper surface of the slab 30 to close it. An inclined discharge chute 8 is formed at the bottom of the case body 30. A rectangular slab supply port 9'a is provided in the lid 9'. Further, a support tube 32 is provided upright on the upper surface of the lid 9', and an annular cover portion 9'c that closely surrounds the peripheral edge of the rotary disk 3 is formed to hang down from the lower surface of the support tube 32.

The rotary disk 3 is equipped with blades 13 and 14 similar to those in the previous embodiment, and is rotated in the B direction on the horizontal plane by a drive mechanism 5 with the cutting surface 3a being close to the lid 9'. It is configured to be rotationally driven.

The rotary disk position adjustment mechanism 4 is fitted onto the rotary shaft 11 through bearings 33 and 34 so as to be relatively rotatable and relatively immovable in the axial direction, and is inserted into the support tube 32 of the shredding case 2 so as to be vertically slidable. A suitable number of fixed brackets 32a and a movable bracket 35a, for example, a pair of fixed brackets 32a and a movable bracket 35a, are provided on the upper end circumferential surfaces of the support tube 32 and the bearing tube 35 in a vertically opposed manner, and each movable bracket 35a has a rotatable structure. It is equipped with a pair of adjusting screw shafts 36, 36 which are attached so as not to be movable in the axial direction and are screwed into each fixing bracket 32a in a vertically penetrating manner, and each adjusting screw shaft 36 can be freely attached to and detached from the lower end thereof. Lever 37
By rotating the rotary disk 3 and the lid 9', the distance between the rotary disk 3 and the lid 9' can be adjusted.

The slab input chute 6 has a slab supply port 9'a.
It is a rectangular cylinder connected vertically to the upper surface of the lid body 9', and is installed on the upper surface of the lid body 9' to transfer the frozen slab 7 to the slab supply working surface 6 which is the side wall surface of the rotating shaft of the chute 6.
By inserting the frozen slab 7 in a state where it is attached to a, the frozen slab 7 is supplied by its own weight into the shredding case 2 from the slab supply port 9'a and comes into contact with the cutting surface 3a orthogonally. It is starting to be retained. In addition, in the slab feeding chute 6, in order to more reliably perform this slab feeding action, there are
A slab feeding roll 28 parallel to the slab feeding surface 6a and a feeding guide plate 38 inclined downward in the direction of the slab feeding surface 6a are provided. The feed roll 28 is rotationally driven in the direction of the arrow by a drive motor 29, and is swingably supported on both side walls of the chute 6 via arms 39, 39, and acts to supply slabs via springs 40, 40. The structure is such that the frozen slab 7 is kept under pressure in the direction of the surface 6a so that the frozen slab 7 can be fed downward while being in contact with the slab supplying surface 6a, regardless of its thickness. Further, the guide plate 38 is for guiding the frozen slab 7 introduced into the slab input chute 6 between the slab supply working surface 6a and the feed roll 28, and is pivotally supported 38a on the chute 6. The angle of inclination can be adjusted using an adjustment bolt 41. Note that this guide plate 38 may be biased and held in the direction of the slab supply working surface 6a by a spring (not shown).

In the shredding device configured in this manner, the frozen slab 7 is supplied from above to the cutting surface 3a of the horizontally rotating rotary disk 3, so that the end portion 7a of the frozen slab 7 to be shredded is The slab 7 is held in stable contact with the cutting surface 3a by its own weight,
The action of each blade 13, 14 is reliably and favorably received.

In addition, chips etc. that do not pass through the discharge window 12...
It will not fall and be discharged through the gap between the cover portion 9'c of the shredding case 2 and the circumferential surface of the rotary disk 3, and will not become clogged in this gap. Therefore, even if the inside of the shredding case 2 is not cleaned frequently, the rotation of the rotary disk 3 will not be hindered. Since there is no need for frequent cleaning, the shredding process can be performed efficiently. The processing efficiency can be improved by erecting a plurality of slab inputting chute 6 on the lid 9' as shown by the chain line in Fig. 8, and shredding a plurality of frozen slabs 7 at the same time. This can be further improved. Note that at least one of the slab inputting chute 6 and the rotating shaft 11 may be arranged in a substantially vertically inclined manner. Further, since the frozen slab 7 can be fed from the slab feeding chute 6 onto the cutting surface 3a by its own weight, a forced slab feeding mechanism such as the feeding roll 28 is not necessarily required, and such a mechanism can be eliminated. You can keep it. In this way, the structure of the apparatus can be simplified, and a sufficient space can be secured for installing a plurality of slab inputting chute.

In each of the above embodiments, a plurality of sets of blades 13 and 14 are provided, but it goes without saying that only one set of blades 13 and 14 may be provided.

[Effect of idea]

As can be easily understood from the above explanation, according to the frozen slab shredding device of the present invention, the end portion of the frozen slab to be shredded is cut with vertical blades parallel to the end portion, and then cut horizontally. Since cutting is performed using a blade, the shredding process using the horizontal blade and the vertical blade can be performed stably and well, and fine pieces of the desired size can be reliably obtained. Moreover, since the cutting resistance acting on the side blades is extremely small, it has superior durability compared to conventional devices and can perform good shredding over a long period of time.

Furthermore, by bringing the horizontal cutting blade into contact with the vertical cutting blade only at its cutting edge, a small piece is spread between the facing surfaces of the horizontal blade and the vertical blade from the contact area of the two blades toward the back side of the rotary disk. By creating an escape space or arranging the vertical blade a certain distance from the horizontal blade in the direction of rotation, fine pieces will not get stuck between adjacent vertical blades.
The shredding action can be performed more smoothly, and fine pieces of uniform size without variation can be obtained more reliably.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the frozen slab shredding device according to the present invention. Figure 1 is a partially cutaway side view, and Figure 2 is a view taken along the - line in Figure 1. 3 is a vertical sectional view of the main part along the line - in FIG. 2, FIGS. 4A and 4B are schematic perspective views showing the shredding action of frozen slabs, and FIG. FIG. 6 is a longitudinal sectional view equivalent to FIG. 3 showing an embodiment, FIG. 6 is a longitudinal sectional front view equivalent to FIG. 2 showing another embodiment, and FIG. 7 is a main part along the line - in FIG. FIG. 8 is a longitudinal sectional view of the first embodiment showing still another embodiment.
FIG. 9 is a longitudinal sectional side view corresponding to the figure (the cross section is taken along the - line in FIG. 9), and FIG. 9 is a partially cutaway plan view along the - line in FIG. 8. 2... Shredding case, 3... Rotating disk, 3a... Cutting surface, 4... Turning disk position adjustment mechanism, 5... Drive mechanism, 6... Slab feeding chute, 7... Freezing slab, 7a... ...End portion to be shredded, 7'a... Cut section, 7b... Cut, 9a, 9'a
... Slab supply port, 11 ... Rotating shaft, 12 ... Fragment discharge window, 13 ... Horizontal blade for cutting, 13a ... Cutting edge of horizontal blade, 14 ... Vertical blade for cutting, 14a ... Vertical blade Cutting edge, 44...Fragment escape space.

Claims (1)

[Claims for Utility Model Registration] (1) A fine fragment ejection window extending in the radial direction of the rotary disk which is rotationally driven in a certain direction is provided, and a fragment ejection window extending in the radial direction of the rotary disk and opposite to the The horizontal cutting blade is arranged so that it can bite in the direction of rotation and tilts freely.
A plurality of vertical cutting blades are arranged in parallel in the radial direction of the rotary disk, facing the horizontal blade, on the side of the horizontal blade in the rotational direction of the rotary disk. At the same time, the cutting edge of the vertical blade is made to protrude further than the cutting edge of the horizontal blade, and the end portion of the frozen slab to be shredded is made parallel cuts with the vertical blade, and then cut with the horizontal blade. A frozen slab shredding device characterized by comprising: (2) The frozen slab shredding device according to claim 1, wherein the vertical cutting blade is arranged in the fragment discharge window together with the cutting horizontal blade. (3) The horizontal cutting blade is brought into contact with the vertical cutting blade only at its cutting edge, and a thin strip is formed between the facing surfaces of the horizontal blade and the vertical blade that spreads from the contact area of both blades to the back side of the rotary disk. The frozen slab shredding apparatus according to claim 2, characterized in that a fragment relief space is formed. (4) The icing according to claim 1, characterized in that the vertical blade for cutting is not placed in the fragment discharge window but is placed a predetermined distance from the horizontal blade for cutting in the rotational direction of the rotary disk. Slab shredding equipment.