JP3098674B2 - Shredding machine and shredding mechanism used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shredding machine for shredding resin waste such as runners, rubber, metal and the like generated during resin molding, and a shredding mechanism used therefor.

[0002]

2. Description of the Related Art Various types of crushers for crushing and treating industrial waste have been used.
FIGS. 16 and 17 show a conventional example of a resin crusher used to crush and reuse unnecessary resin generated during resin molding. FIG. 16 is a side sectional view of the crusher, and FIG. 17 is a plan view. This resin crusher has a plurality of crushing blades 5 fixed at predetermined intervals on a shaft 4 and a fixed blade 7 having a comb blade 8 provided. A plurality of blades 6 are provided on the circumference of the crushing blade portion 5, and the blades 6 enter between the comb blades 8 with the rotation of the shaft 4 to crush the resin.

[0003]

Conventional resin crushers include various products in addition to the above-mentioned products, but the basic method of crushing resin waste with a rotating crushing blade is common. ing. However, the conventional apparatus using such a rotating crushing blade has the following problems. The size of the crushed material varies depending on the size, and it is not possible to obtain a crushed material having a uniform grain size. The object to be crushed may pass through the gap between the blade 6 and the comb blade 8 without being crushed, and the object to be crushed may come out with a large size. The crushing blade portion 5 crushes the object to be crushed between the fixed blade portion 7 and the fixed blade portion 7. When the crushing blade does not sufficiently work, the crushing blade portion 5 and the fixed blade portion 7 crush the object to be crushed. The crushed material floats and cannot be crushed efficiently. For this reason, efficient crushing cannot be performed. If crushing is continued in a state where the crushed material always remains, the apparatus is overheated by frictional heat. The crushed material remaining between the comb blades 8 through which the blades 6 do not pass is the blade 6
Remains without being crushed. If the crushing is continued while the crushed material remains, resin fine particles are generated, which deteriorates the working environment.

The present invention has been made to solve these problems, and an object of the present invention is to efficiently crush objects to be crushed, such as resin waste, rubber, glass, and metal, and have uniform particle sizes. An object of the present invention is to provide a shredder that can be obtained as a crushed material and a shredding mechanism used for the same.

[0005]

The present invention has the following configuration to achieve the above object. In other words, the Tsubudan machine
And has a fixed blade for crushing the crushed material into granules
A fixing portion formed in a block shape, it is possible contact Hanaredo with respect to the fixed portion, the block having a movable blade unit for crushing the fixing portion cooperating to-be-crushed object upon approaching to the fixed part
It includes a movable portion formed on Jo, and a drive mechanism for contact Hanaredo the movable part relative to the fixed portion, the fixed blade
The portion protrudes in a comb edge shape from the corner edge of the fixing portion and the corner edge.
Formed into a groove-like blade from adjacent two sides of multiple projecting parts
The first sheared portion and the base position of each of the projecting portions.
A second groove formed in a concave portion alternately arranged with the groove-shaped blade;
And a shearing section, wherein the movable blade section is provided on the movable section.
A plurality of protrusions that can be engaged with the groove-shaped blade as a first shearing portion;
The movable part approaches the fixed part and is formed on the blade.
When the crushed material is firstly worked in cooperation with the first shearing part.
A third shearing portion for shearing, and a plurality of the second shearing portions;
Formed in a plurality of protrusions that can be fitted to the
Is further approached to the fixing portion, the second shearing portion
From the fourth shearing section that secondary-shears the material to be crushed in cooperation with
It is characterized by comprising . Further, in the above-mentioned shredder,
The concave portion, which is the second shearing portion, is provided with a protrusion of the fourth shearing portion.
Is formed in the inclined concave part whose tip side that fits with the part is low.
Being, wherein the movable part, outside the crush material, which is Tsubudan
A discharge hole for discharging to the third shearing portion;
An opening communicating with the outlet is provided . The crushed material is roughly crushed using a rotary blade, and the crushed material is
Drop into the mechanism that breaks the particles by the fixed and movable parts
It is characterized by having a preliminary crushing section . In addition, the grain breaking mechanism
A first main body formed in a block shape, a second main body formed in a block shape and relatively movable toward and away from the first main body, and the first main body A plurality of first shearing portions formed on a groove-shaped blade comprising a corner edge of the portion and both side portions of a plurality of protruding portions projecting in a comb blade shape with respect to the corner edge ; alternating with said groove-like blade based portion position of the projecting portion
A second shearing section formed arranged recesses, the second
A third shearing portion formed on a plurality of protruding blades that can be engaged with the plurality of groove-shaped blades, which are the first shearing portions, and provided on the second main body portion. , Formed in a plurality of protrusions that can be fitted in a plurality of recesses that are the second shearing portions.
And a fourth shearing portion.

[0006]

The shredder according to the present invention compresses the crushed object between the fixed portion and the movable portion by moving the movable portion having the movable blade portion toward and away from the fixed portion having the fixed blade portion by a drive mechanism. And crush it into granules. When crushing by moving the movable portion close to the fixed portion, the primary shearing and the subsequent secondary shearing enable a suitable crushing. In this case, primary shearing is performed between the first shearing portion provided on the fixed blade portion and the third shearing portion provided on the movable blade portion, and the second shearing portion provided on the fixed blade portion and the movable blade Secondary shearing is performed with the fourth shearing section provided in the section. The object to be crushed is crushed into particles by primary shearing by a first shearing portion formed in a comb blade shape and a third shearing portion formed by a protruding blade meshing with the first shearing portion, and subsequently a first shearing portion formed by a plurality of concave portions is formed. The portion remaining after the primary shearing is broken into particles by the secondary shearing by the fourth shearing portion formed by the second shearing portion and the plurality of protrusions fitted thereto.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a portion for crushing an object to be crushed in the shredder of the embodiment, FIG. 2 is a view as viewed from an arrow A in FIG. 1, and FIG. The crushing method by the crushing apparatus of the embodiment is characterized in that the crushed material is roughly pre-crushed to a certain size by a rotary crushing blade, and the pre-crushed crushed material is then broken into particles by a particle breaking mechanism. I do.

In FIG. 1, a portion C is a preliminary crushing section for crushing the material to be crushed by a rotary blade, and a portion D is a breaking mechanism for breaking the pre-crushed material into smaller pieces. In the preliminary crushing section C, the rotary blade section 10 is disposed in a box-shaped casing 13 having an open top, and receiving sections 12 and 14 are provided on both sides of the rotary blade section 10. The receiving portions 12 and 14 are formed on an inclined surface on which the rotary blade portion 10 side is lower in order to receive the crushed material put into the casing 13 and collect the crushed material on the rotary blade portion 10. I have.

As shown in FIG. 1, the rotary blade portion 10 has two crushing blades 10a and 10b arranged at symmetric positions with respect to a drive shaft 16 which is horizontally supported. As shown in FIG. 2, two rotary blades 10 are provided on the drive shaft 16 at predetermined intervals. The receiving portion 12 has a crushing blade 10
a, fixed blade 12a for crushing crushed material in cooperation with 10b,
12b is provided.

The crushing blades 10a and 10b are extended relatively long from the drive shaft 16 in order to crush the object to be crushed. Further, on the drive shaft 16,
Small crushing blades 18 are provided between the crushing blades 10 and outside the crushing blades 10. The small crushing blade portion 18 moves the object to be crushed toward the receiving portion 12 and crushes the object with the rotary blade portion 10. The crushed object crushed by the rotary blade 10 to a size of a certain size or less is crushed by the small crushing blade 18 and dropped below the preliminary crushing section C.

A gear 19 is fixed to the end of the drive shaft 16, and a drive gear 22 attached to an output shaft of a drive motor 20 meshes with the gear 19. Drive gear 22
The gear ratio between the gear 19 and the gear 19 is 1: 2, and when the drive gear 22 makes one rotation, the drive shaft 16 makes a half turn.

The method of pre-crushing the object to be crushed by the rotary blade 10 is basically the same as the method of crushing in a conventional resin crusher. On the other hand, the crushing method at the breaking section D in the breaking machine of the present embodiment is characteristic. That is, as shown in FIG. 1, the object to be crushed preliminarily crushed in the preliminary crushing portion C falls below the rotary blade portion 10, but the lower portion of the preliminary crushing portion C narrows as shown in the figure. It is formed in a hopper shape, and a fixed part 30a and a movable part 30b are provided below the hopper. The fixed portion 30a and the movable portion 30b break the pre-crushed object by engaging a fixed blade portion and a movable blade portion (described later) provided respectively.

As shown in FIG. 1, the movable part 30b is
By moving linearly in the direction of arrow E along the lower surface of Oa, the pre-crushed object is shredded. In addition,
The fixed portion 30a and the movable portion 30b are arranged to be inclined with respect to the vertical direction in order to reliably guide the object to be crushed to the meshing portion between the fixed portion 30a and the movable portion 30b. The movable part 30b reciprocates in the vertical diagonal direction (the direction of arrow E) to perform the breaking process.

In the embodiment, as a driving mechanism for reciprocatingly driving the movable portion 30b, the movable portion 30b is fixed to the movable plate 32, and the movable plate 32 is reciprocated by the cam mechanism. That is, the movable plate 32 is attached to the cam plate 34, and the eccentric roller 38 is rotatably engaged in the window 36 provided in the cam plate 34. The eccentric roller 38 is attached to the eccentric position of the rotating plate 39, and the rotating plate 39 is connected to a gear 40 which is engaged with the driving gear 22. The gear ratio between the gear 40 and the drive gear 22 is 1: 1.

FIG. 3 shows a cam mechanism including the cam plate 34, the rotary plate 39 and the like. A rotating plate 39 supporting the eccentric roller 38 is connected to a gear 40 via a gear shaft 42,
2 is rotatably supported by bearings. 4
Reference numeral 4 denotes a guide post for guiding the cam plate 34 to reciprocate.

When the drive gear 22 is driven to rotate by the drive motor 20 according to the above configuration, the rotating plate 39 rotates, and the eccentric roller 38 rotates and moves along a circular locus.
4 guides the cam plate 34 and the movable plate 32 to reciprocate. In this way, the movable part 30b is reciprocated and the fixed part 30a and the movable part 30b perform the breaking operation.

In the apparatus of the embodiment, since the gear ratio is set as described above, each time the movable portion 30b reciprocates once, the rotary blade portion 10 makes a half turn to perform one preliminary crushing. The operation of the preliminary crushing by the rotary blade portion 10 and the reciprocating motion of the movable portion 30b is performed by shifting the timing of the preliminary crushing and the particle breaking operation so that the movable portion 30b reciprocates after the rotary blade portion 10 preliminary crushes. Set. By setting the timing staggered in this way, it is possible to perform the particle cutting processing in accordance with the preliminary crushing, and it is possible to reduce the load applied to the drive mechanism.

A runner or the like generated during the production of a plastic product has a complicated shape, but the cut portion D is suitable for processing a somewhat simple shape such as a rod. Therefore, the pre-crushing is roughly performed in the pre-crushing section C and then sent to the breaking section D, whereby a suitable breaking processing is performed.

FIGS. 4 and 5 show the preliminary crushing section C and the grain breaking section D.
Another embodiment of the drive mechanism of the present invention is shown. In the apparatus of this embodiment, the shape of the crushing blades 10c and 10d of the rotary blade portion 10 is changed, and the driving mechanism is changed to the eccentric roller 38 and the cam 4 is used.
This is an example using No. 5. 4 and 5, the crushing blades 10c and 10d are the crushing blades 10a and 10b of the previous embodiment.
The base side is formed wider in the circumferential direction than in the first embodiment. If the width of the crushing blades 10c and 10d is narrow, the crushing blades 10c and 10d
Is to prevent the object to be crushed from falling down from the gap portion of the fixed blade 12a after passing through the fixed blade 12a. By making the crushing blades 10c and 10d wider to extend the time for passing through the fixed blades 12a and 12b, it is possible to prevent the crushed object from falling without being pre-crushed. Further, by forming the tip shape of the crushing blades 10c and 10d at an acute angle, the object to be crushed is
It is easy to crimp inside 0d so that it can be efficiently crushed.

As for the drive mechanism of the movable portion 30b, a cam 45 is fixed on a gear shaft 42 on which a gear 40 meshing with a drive gear 22 (see FIGS. 1 and 3) provided on the drive motor 20 is fixed. The roller 46 is always in contact with the outer surface of the cam 45, and the roller 46 is pushed by the rotation of the cam 45. As shown in FIG.
b is rotatably supported by a movable plate 32 that supports b.
1 to 3, the movable plate 32 is moved in a linear direction along the guide post 44. The movable plate 32 is constantly urged upward by a spring 47, and the roller 46 is always in contact with the outer peripheral surface of the cam 45.

The cam 45 is formed in an oval shape as shown in FIG. Thus, the roller 46 is periodically pushed down with the rotation of the gear shaft 42. The roller 46 is
Due to the pushing operation of the cam 45 and the pushing-up action of the spring 47, the cam 45 linearly reciprocates within a predetermined stroke range, whereby the movable portion 30b is driven to reciprocate.

Next, the structure of the fixed part 30a and the movable part 30b installed in the grain cutting part D will be described. FIG.
FIG. 7 is a perspective view showing the fixed part 30a partially cut away, FIG. 8 is a perspective view showing the movable part 30b partially cut away, and FIG. FIG. 6 is a view on arrow X of FIG.

In FIG. 6, reference numeral 310 denotes a corner edge, which is formed at intervals on one side of the fixed portion main body formed in a block shape. An inclined concave portion 311 having a deep distal end is formed between adjacent edge portions 310. Reference numeral 312 denotes a protruding portion, which protrudes from between the corner portions 310 in a comb blade shape. That is, the protrusions are protruded from the fixing portion main body, which is the tip of each inclined concave portion 311 provided in the middle of the corner portion 310.
As shown in FIGS. 6 and 7, the distal end positions of the corner portion 310 and the inclined concave portion 311 are linearly arranged, and the projecting portion 312 protrudes outward from these positions.

The distal end surface of the protruding portion 312 is formed in a rectangular shape, and the side surfaces 313 and 314 orthogonal to the corner portion 310 and the surface (upper surface) 315 on the side of the inclined recess 311 serve as a shearing blade surface. Each edge 310 and its corresponding blade surface 313, 3
The plurality of groove-shaped blades constituted by 14 constitute the first shearing portion 318 (see FIG. 12). Further, a second shearing portion 320 (see FIG. 14) is configured by the inclined concave portion 311 including the blade surface 315. Therefore, groove-shaped first shearing portions 318 are formed in the fixed portion 30 a at intervals, and the second shearing portions 320 are disposed at intermediate positions of the first shearing portions 318. The surface of the protruding portion 312 facing the movable portion 30b is a sliding contact surface 316 that comes into sliding contact with the movable portion main body.

In FIG. 8, reference numeral 330 denotes a third shearing portion, which is formed on the upper surface of the movable portion main body. Third shear part 3
Reference numeral 30 denotes a protruding blade that can mesh with the groove-shaped blade constituting the first shearing portion 318. The third shearing section 330 has shearing blade surfaces 332 and 333 for meshing with the first shearing section 318 to shear the object to be crushed. Each end surface of the protruding blade is formed in a rectangular shape, and when the movable portion 30b approaches the fixed portion 30a, it enters into the groove-shaped blade of the first shearing portion 318.

Reference numeral 340 is a fourth shearing section provided on the movable section 30b. The fourth shearing section 340 moves the blade tip position to the third position.
Is arranged at a position retracted from the blade end position of the third shearing portion 330, and is formed between the adjacent blades of the third shearing portion 330 so as to be able to enter the front end of the inclined concave portion 311 so as to have a comb blade-like projection. ing. The fourth shearing portion 340 is formed on a slope where the tip side becomes thinner.

As shown in FIG. 8, the third shearing portions 330 are formed on the movable portion main body in parallel at regular intervals, so that there is a groove between the blades. An opening 350 is provided at the rear end of the groove. A discharge hole 360 for discharging broken particles is provided in a downward direction inside the movable portion 30b, and the opening 350 communicates with the discharge hole 360.

As described above, the first shearing portion 318 and the second shearing portion 320 are formed on the fixed portion 30a, and the third shearing portion 330 and the third Four shear portions 340 are formed. The first shearing section 318 and the third shearing section 330 perform primary shearing of the pre-crushed object to be crushed, and the second shearing section 320
And the fourth shearing section 340 performs secondary shearing.

In manufacturing the fixed portion 30a and the movable portion 30b, the blade material may be appropriately selected and manufactured according to the material of the material to be crushed. Also, the fixing part 30
a, a combination of different materials, such as using a cemented carbide for each shearing part of the movable part 30b and using stainless steel for the other parts. The embodiment shown in FIGS. 6 to 8 is an example in which a fixed part 30a and a movable part 30b are configured by combining some members.

Since the fixed portion 30a and the movable portion 30b are formed by arranging small blades in parallel, if a material such as cemented carbide is used as the blade material, which is difficult to machine, the machining of the blades is troublesome and the production cost is high. Will be higher. In such a case, it is effective to form the comb-shaped blades in advance as separate bodies, and to combine them with an adhesive by bonding the comb-shaped blades to the main body. This method has the advantage that the manufacturing time can be reduced and the manufacturing cost can be reduced since the blade can be formed into a comb blade shape simply by bonding and assembling the blades.

Next, the operation of breaking the material to be crushed will be described with reference to FIGS.
15 will be described. FIG. 10 shows the movable unit 3 before the fixed unit 30a and the movable unit 30b break the object 50 to be crushed.
0b is at the uppermost position. The material 50 to be crushed is a round-bar-shaped runner resin (see FIG. 11) for the sake of explanation. After the crushed object 50 is pre-crushed in the pre-crushing section C, the fixed section 30a
And the movable part 30b falls into the meshing part. Fixed part 30
The sliding contact surface 316 of the protruding portion 312 provided on the side surface of a is in sliding contact with the surface of the movable portion 30b, and holds the crushed object 50 so as not to fall.

When the movable part 30b moves obliquely downward from the state shown in FIG. 10, the object 50 to be crushed is sheared between the first shearing part 318 and the third shearing part 330 (primary shearing). . FIG. 12 shows a state in which primary shearing is performed. The crushed object 50 is sandwiched between the third shearing portion 330 and the first shearing portion 318, and is sheared into an uneven shape as shown in FIG. The operation of sandwiching the crushed object 50 is performed by the protruding portions 31 constituting the first shearing portion 318.
2, between the third shearing portion 330 and the upper surface near the corner of the fixed portion 30a, the protruding portion 312 and the holding surface of the third shearing portion 330 are formed in a V-shape, and are crushed. The object 50 can be reliably held and held. 50 in FIG.
a is a fragment which has been broken by primary shearing,
With the downward movement of b, it is protruded by the third shear portion 330 and falls downward.

FIG. 14 shows a state in which the movable portion 30b is further moved downward to shear the object 50 between the fourth shearing portion 340 and the second shearing portion 320 (secondary shearing). The fourth shearing portion 340 fits into the front end of the inclined concave portion 311 and shears the crushed material 50 that has been subjected to the primary shearing with the second shearing portion 320. By the secondary shearing by the fourth shearing section 340 and the second shearing section 320, the convex section 52 remaining in the uneven shape by the primary shearing is sheared. As described above, the corner portion 310 and the second shear portion 320 constituting the first shear portion 318 are formed.
Are linearly arranged, the crushing surface of the crushed object 50c after the secondary shearing becomes flat as shown in FIG. That is, the object 50 to be crushed is once crushed into primary and secondary shapes by primary shearing, and then only the convex portions 52 of the unevenness are crushed by secondary shearing and flattened.

After the primary shearing, while the movable portion 30b further moves down, the third shearing portion 330 moves into the crushed object 50 while being crushed, and the secondary shearing immediately follows the primary shearing. Therefore, only the projection 52 can be sheared by the secondary shearing without moving the object 50 by the secondary shearing.

The granular material 50 which is the secondary sheared convex portion 52
b enters the discharge hole 360 from the opening 350 at the rear of the third shearing portion 330 and is discharged downward from the discharge hole 360. After performing the secondary shearing, the movable section 30b returns to the position shown in FIG. 10 and one grain cutting process is completed. Movable part 30b
Returns to the upper position, the next crushed object 50 moves to the meshing position of the fixed part 30a and the movable part 30b, and the next grain breaking process is performed. As shown in FIG. 15, the crushed material 50c remaining without being crushed by the primary shearing and the secondary shearing is crushed in the next particle cutting process.

As described above, in the shredding machine of this embodiment, the objects to be crushed are crushed one after another by the reciprocating motion of the movable portion 30b, and are broken. As described above, the material to be crushed is partially sheared by primary shearing to be crushed into particles, and the remaining portion is sheared by secondary shearing to be surely crushed into particles. The crushed material to be actually subjected to the shredding treatment varies in size and shape, so that by repeatedly performing the severing treatment, the crushed material is sequentially shredded to a predetermined size or less.

In the above embodiment, the first shear portion and the second shear portion
The third shearing portion and the fourth shearing portion are movable portions, but the fixed portion and the movable portion are subjected to a relative shearing operation by a relative moving operation. The function of the fixed part and the movable part may be reversed, and the fixed part may be configured as the movable side, and the movable part may be configured as the fixed side. Further, it is also possible to make both of them movable so as to cut the particles.

As described above, in the crushing method using the shredder of the present embodiment, the material to be crushed is partially sheared and crushed by the shearing portions provided in the fixed portion and the movable portion. Even if the size varies, there is a characteristic that crushed products can be obtained in a granular form. The size of the grains when the crushed material is broken can be defined by the size of the shearing portion. The size of the shearing portion may be reduced when the particles are cut small, and the size of the shearing portion may be increased when the particles are cut to some extent. The size of the shearing portion may be appropriately designed in accordance with the intended use.

When the shredding machine of this embodiment was used for actual crushing of resin, it was possible to obtain well-sized shreds. When resin waste such as a runner is reused, it is used by being mixed with new pellets. Therefore, the ability to obtain a crushed product having such uniform particles is extremely suitable for recycling resin waste. In addition, since the shearing action of the fixed part and the movable part shears by sandwiching the object to be crushed, it is necessary to reliably and efficiently crush the object to be crushed compared to the conventional method of crushing with a rotary crushing blade. There is an advantage that can be. Thus, a driving unit such as a driving motor does not need a large power.

The fixing portion 3 used in the particle cutter of the embodiment is used.
The width of the main body 0a and the movable portion 30b is about 80 mm. As described above, the present apparatus can be formed into a compact and can be provided as a crusher having a high processing capacity. In the case where the processing amount is large, the size of the fixed portion and the movable portion is increased to increase the number of shear points of the shearing portion, and the amount that can be broken by a single breaking operation is increased. Good. In the case of the present apparatus, since the apparatus can be formed more compactly than the conventional crusher, it is possible to easily incorporate the apparatus into a part of a resin molding machine, for example. If the resin waste is configured to pass through the cutting device after the resin molding, it is useful because the process up to the particle cutting treatment of the resin waste after the resin molding can be performed as a series of processes.
In the above embodiment, an example in which resin waste such as a runner is cut is described. However, in addition to crushing resin waste, the present invention can be similarly applied to various materials such as rubber and metal. .

[0041]

According to the shredding machine and the shredding mechanism used for the same according to the present invention, as described above, the object to be crushed is crushed by the movement of the fixed blade portion and the movable blade portion. Can be reliably crushed into granules. In particular, since the crushed object is crushed by sandwiching it between the fixed blade part and the movable blade part that moves toward and away from each other, the crushing force works effectively on the crushed object, enabling efficient crushing, with small power consumption Can be crushed.
In addition, by crushing the material to be crushed to a certain size in the preliminary crushing unit and then crushing by the grain breaking mechanism, reliable crushing becomes possible. Since this crusher has a high crushing efficiency, it has a remarkable effect that it can be provided as a compact and large-capacity apparatus.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an embodiment of a shredder.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a view taken in the direction of arrow B in FIG. 1;

FIG. 4 is a side sectional view of another embodiment of the shredder.

FIG. 5 is an explanatory view showing a driving mechanism of the embodiment of FIG. 4 of the shredder.

FIG. 6 is a perspective view of a state where a fixed part and a movable part are combined.

FIG. 7 is a perspective view showing a fixing part partially broken away.

FIG. 8 is a perspective view showing a movable part with a part cut away.

FIG. 9 is a view on arrow X of the embodiment of FIG. 6;

FIG. 10 is an explanatory diagram showing positions of a fixed portion and a movable portion before fragmentation.

FIG. 11 is a plan view of a material to be crushed before fragmentation.

FIG. 12 is an explanatory diagram of a state in which a material to be crushed is primarily sheared.

FIG. 13 is a plan view of an object to be crushed after primary shearing.

FIG. 14 is an explanatory diagram of a state in which an object to be crushed is secondarily sheared.

FIG. 15 is a plan view of an object to be crushed after secondary shearing.

FIG. 16 is a sectional view of a conventional example of a resin crusher.

FIG. 17 is a plan view of a conventional example of a resin crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rotating blade part 10a, 10b, 10c, 10d Crushing blade 20 Drive motor 30a Fixed part 30b Movable part 32 Movable plate 34 Cam plate 38 Eccentric roller 44 Guide post 45 Cam 46 Roller 50 Crushed object 50a Shredder 50c Crushed object Object 52 Projecting part 310 Corner edge 311 Inclined concave part 312 Projecting part 313, 314 Blade surface 316 Sliding surface 318 First shearing part 320 Second shearing part 330 Third shearing part 340 Fourth shearing part 350 Opening Part 360 discharge hole

Claims (5)

(57) [Claims] 1. A fixed portion formed in a block shape having a fixed blade portion for crushing an object to be crushed into granules, and a movable portion capable of moving toward and away from the fixed portion, when approaching the fixed portion. It includes a movable portion formed in a block shape having a movable blade unit to crush the object to be crushed in cooperation with said fixed portion, and a drive mechanism for contact Hanaredo the movable part relative to the fixed part The fixed blade portion includes a corner edge of the fixed portion and a plurality of comb-shaped protrusions protruding from the corner edge.
A number of protruding parts are formed on the groove-shaped blade from adjacent both sides
A first shearing portion, and the groove-shaped blades are alternately arranged at base positions of the respective projecting portions.
The movable blade portion meshes with the groove-shaped blade, which is the first shearing portion, with the movable portion.
The movable part is formed on a plurality of protruding blades that can be fixed.
Cooperates with said first shear section when approaching the section
A third shear portion for primary shearing the object to be crushed, and a plurality of recesses which can be fitted to the plurality of concave portions as the second shear portion.
The movable part is formed closer to the fixed part.
In this case, the crushed material is secondarily cooperated with the second shearing portion.
A fourth shearing portion for shearing . 2. The recess as the second shearing section,
The inclined recessed part whose tip side to be fitted with the projection of the shearing part of No. 4 is low.
The particle cutter according to claim 1, wherein the particle cutter is formed in a portion . 3. The movable part is provided with a crushed object to be crushed.
A discharge hole for discharging to the outside is provided, and the third shear portion is
3. The shredder according to claim 1 , further comprising an opening communicating with the discharge hole . 4. An object to be crushed is roughly crushed using a rotary blade.
A mechanism for breaking the crushed material by the fixed and movable parts
A preliminary crushing part for dropping is provided.
4. The shredder according to claim 1, 2 or 3 . 5. A first main body portion formed in a block shape, a second main body portion formed in a block shape and relatively movable toward and away from the first main body portion, A plurality of first shearing portions formed on a groove-shaped blade including a corner portion of the main body portion and both side portions of a plurality of protruding portions protruding in a comb blade shape with respect to the corner portion; arranged alternately with the groove-like blade based portion position of the projecting portion of the respective
A second shearing section formed in the recesses, provided in the second body portion, is formed on the plurality of the groove-like blade engageable with a plurality of projecting blades is the first shearing section
A third shearing portion, and a fourth shearing portion provided on the second main body portion and formed on a plurality of protrusions that can be fitted to a plurality of recesses as the second shearing portion. A grain breaking mechanism.