JP2003205250A - Bit for tab crusher, tab crusher, self-propelled tab crusher, and method of use of tab crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bit for a tab crusher which reliably crush a material made of a synthetic resin, and to provide a tab crusher, a self-propelled tab crusher, and a method of use of a tab crusher. <P>SOLUTION: A tip edge 34 of the bit 30 used for the crushing apparatus of the tab crusher is made into a linear shape to contact with the material. Accordingly, the bit 30 easily catch the material made of a thin and lightweight synthetic resin such as a PET bottle, and a long and narrow material, the flicking of the material is prevented, and the material is reliably crushed. The bit 30 causes shearing to the material by the hard contact of the linear tip edge 34 with the material, and crushes the material as if it tears the material. Even a material such as a pipe made of a polyvinyl chloride with a skiddy surface is reliably crushed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tab type crusher bit, a tab type crusher using the tab type crusher bit, a self-propelled tab type crusher equipped with the tab type crusher, And a method of using the tab crusher.

[0002]

BACKGROUND ART Conventionally, in order to crush synthetic resin waste (material to be crushed) to obtain a recycled material, a two-shaft crusher as described in JP-A-7-178346 is used. It is used. A plurality of disc-shaped cutters are attached to each of the parallel rotating shafts of this crusher at intervals, and the cutter of one rotating shaft and the cutter of the other rotating shaft are the disc-shaped cutters. By utilizing the gap formed by making the space, the parts rotate in the axially overlapping state. Then, the waste material is caught in the overlapping portion of the cutters and crushed by the shearing action. That is, such a crusher can be said to be a shearing machine having a rotating cutter.

[0003]

By the way, in recent years, when the amount of wastes made of synthetic resin is increasing, it is desired to surely crush the wastes. In particular, when such synthetic resin waste is used as a recycling material, it must be crushed to a predetermined size before being brought to the final disposal site for recycling. Since it is necessary to increase the amount of transportation (weight) and efficiently transport it to the disposal site, there is a great demand for crushing.

However, as the waste made of synthetic resin, which is crushed by the conventional two-axis type crusher, there are many cases in which the weight is relatively large. This is because the weight of the housing easily bites into the overlapping portion of the cutters. For this reason, a thin and lightweight resin container, for example, is not easily bitten by the rotating cutter and is not bitten, and is difficult to crush. Also, long and slender scraps may slip through the gap between the cutters depending on their thickness.
Not suitable for crushing. Furthermore, even if a thick pipe or a large container made of synthetic resin has a sufficient weight, the surface is slippery, so that the biting property is poor. Furthermore, it is not suitable for crushing because it becomes difficult to bite. In other words, at present, it cannot be crushed reliably depending on the shape and size of the waste. In addition to the two-axis type, there is also a one-axis type crusher in which one cutter is a fixed blade, but even in this case, the same problem occurs.

On the other hand, in recent years, a tab type crusher for crushing wood has been developed. The tab-type crusher is disclosed in
As described in JP-A-342986, a crushing device (hammer mill) including a plurality of rotating tab-type crusher bits, and a rotary tab that efficiently guides and supplies wood to the crushing device are included. It is configured. In the tab-type crusher, the tab-type crusher bit is cut into the wood and scratched to crush the wood into a predetermined size that can be reused. Therefore, the tip shape of the tab-type crusher bit is a warhead shape (conical shape), and the bite into the wood is favorably performed.

However, such a tab type crusher is exclusively
It was for crushing wood, and for crushing waste made of synthetic resin, it was feared that it would be blown off by a tab-type crusher bit, and it was never used.

An object of the present invention is to provide a tab type crusher bit, a tab type crusher, a self-propelled tab type crusher, and a method of using the tab type crusher, which are capable of reliably crushing synthetic resin crushed objects. To provide.

[0008]

In the tab type crusher bit according to claim 1 of the present invention, the tip edge is a straight line in a plan view, a bent line within an obtuse angle range, and a gentle slope. Is formed in any of the curved lines,
Alternatively, it is characterized in that it is formed in a shape obtained by arbitrarily combining them.

The tab type crusher bit of the present invention is attached to the tub type crusher. In the tab-type crusher bit used in the above-mentioned tab-type crusher for crushing wood, since the tip shape is a warhead shape, the shape of the tip edge in plan view is V-shaped. In the tab type crusher bit of the invention, the tip edge has a shape excluding such a V-shape. For this reason, "dot" is applied to the crushed material.
Instead of hitting with, it will hit with "lines", so even if the crushed object is made of thin and lightweight synthetic resin,
It's now easier to catch and isn't thrown away. Further, in the tab-type crusher bit for wood, the wood is crushed as if scratched, but in the tab-type crusher bit of the present invention, the linear bit tip edge is vigorously applied to the object to be crushed. Make a shear on and crush into pieces. Therefore, even a crushed object made of synthetic resin having a slippery surface can be crushed without fail.

As described above, when the tab type crusher bit of the present invention is attached to the tab type crusher, the size, weight, and weight of the crushed object made of synthetic resin
The object of the present invention can be achieved because the particles are surely crushed without being significantly affected by the surface condition and the like. When such a tab-type crusher bit is used for crushing wood, it is difficult to crush the tab-type crusher bit without cutting into the wood.

The tab type crusher bit according to claim 2 is the tab type crusher bit according to claim 1, wherein
It is characterized by having a flat surface that hits the object to be crushed. In such a configuration, since the tab type crusher bit hits the object to be crushed on a flat surface, compared to a warhead-shaped tab type crusher bit that is expected to hit on a curved surface,
The object to be crushed is further suppressed from being flipped off, and is easily shredded according to the size of the flat surface. In addition, since the shredded crushed material stays on a flat surface and rotates together with the tab-type crusher bit, it can be efficiently transported to the discharge side and discharge efficiency is improved.

The tab type crusher bit according to claim 3 is the tab type crusher bit according to claim 1 or 2, wherein when the tab type crusher bit is attached to a tab type crusher equipped with a screen, the rotation. It is characterized in that a pushing portion is provided therein which allows a crushed object (a crushed object in a crushed state) to slide while contacting the inner surface of the screen. According to this structure, the shredded crushed material is
It is pushed or held by the pushing portion of the tab type crusher bit and slides while rubbing against the inner surface of the screen.
Therefore, a crushed material larger than the discharge opening of the screen is likely to be scraped by the edge of the discharge opening, etc., and the productivity of the crushed material is improved. Moreover, since the crushed material is discharged after being cut into a predetermined size corresponding to the discharge port, the size of the obtained crushed material can be made uniform. Then, the crushed material slides while coming into contact with the inner surface of the screen, whereby the discharge from the discharge port is also efficiently performed.

According to a fourth aspect of the present invention, in a tab type crusher, a rotary tab into which an object to be crushed is input, a crushing device for crushing the object to be crushed supplied by rotation of the rotary tab, and a crushing device are provided. And a tab-type crusher bit attached to the rotating body, which is the tab-type crusher bit according to any one of claims 1 to 3. Characterize. Since a tab type crusher bit having at least the configuration according to claim 1 is attached to such a tab type crusher of the present invention,
As described above, the synthetic resin crushed object is surely crushed, and unlike the 1, 2 axis type crusher in which the crushed object is bitten, the elongated crushed object is surely crushed. It will be crushed. This achieves the object of the present invention. Further, by attaching the tab type crusher bit according to claim 2 or 3,
The same effects and advantages as those described above are obtained, and the performance is improved.

The tab type crusher according to claim 5 is the tab type crusher according to claim 4, wherein the tab type crusher bit is provided with a flat surface for hitting an object to be crushed. Is along the radial direction of the rotating body, or
It is characterized in that the tip end side is inclined toward the rotation direction side of the rotating body with respect to the radial direction. According to such a configuration,
The flat surface of the tab type crusher bit is either along the radial direction of the rotating body or the tip side is inclined toward the rotating direction side, so it becomes easier to catch the crushed object and the crushing efficiency is improved. .

The tab type crusher according to claim 6 is the tab type crusher according to claim 4 or 5, wherein a part of the rotating body of the crushing device is exposed from an opening in the rotating tab. A fixed blade corresponding to the tab-type crusher bit is attached near the edge of the opening. In such a configuration, the rotating tab-type crusher bit and the fixed blade significantly accelerate the shearing of the crushed object, and the crushed object is crushed reasonably, so that the crushing efficiency is improved and the rotation is improved. The driving energy of the body can be small, and labor can be saved.

A tab type crusher according to a seventh aspect is the tab type crusher according to the sixth aspect, in which the blade edge of the fixed blade is formed in a wave shape along the width direction of the fixed blade. The tip edge of the machine bit is characterized in that the gap with the blade edge of the fixed blade is formed to be substantially uniform in the blade width direction. In such a configuration, the blade edge of the fixed blade is wavy, and the tab type crusher bit is also formed in a shape corresponding to the fixed blade, so that the fixed blade or the tab type crusher bit hits the crushed object. The length (contact length) becomes longer, shearing is more likely to occur, and the breaking property is greatly improved.

The self-propelled tub type crusher according to claim 8 of the present invention comprises a vehicle body having a traveling portion and a crusher mounted on the vehicle body, and the crusher has the above-mentioned features. The tab-type crusher according to any one of claims 4 to 7. According to such a self-propelled tab type crusher of the present invention, at least the tab type crusher to which the bit for the tab type crusher according to claim 1 is attached is mounted. The object of the invention is achieved. And, depending on the tab type crusher installed, the claim 2
The functions and effects described in Nos. 3, 5 and 7 are likewise obtained.

Further, since wood is generally crushed at a logging site in a forest or a dam site with a lot of driftwood, the above-mentioned tab-type crusher dedicated to wood can be self-propelled even if it enters the site. A crawler type traveling unit is provided. However, as the crushed material made of synthetic resin, plastic bottles (containers made of polyethylene terephthalate) from home,
Although there are electric appliances from retail stores, these crushed objects are generally industrial waste that is carried into the building such as a crushing factory, and a crushing line is usually established in the crushing factory. So there is no need for the tab crusher to move around. In consideration of this, it is considered that there is little merit to mount a tab type crusher for crushing synthetic resin crushed objects on a self-propelled tub type crusher.

However, the tab type crusher mounted on the self-propelled tab type crusher of the present invention is crushed by breaking the tab type crusher bits to crush both wood and synthetic resin crushed objects. If possible, it can be used for crushing wood at logging sites and dam sites as needed, or for crushing synthetic resin waste, and the self-propelled tab crusher is used without waste. Like

Further, if the amount of industrial waste made of synthetic resin becomes large, it will be temporarily accumulated in small-scale collection sites in various places before being brought into the crushing factory, and from there, it will be successively brought into the crushing factory. However, if it is a self-propelled tab crusher, it can be easily moved between each collection site, and by performing crushing work at the collection site, fine crushed material is the final treatment for recycling from the collection site. It will be transported directly to the place, and the transportation efficiency will be greatly improved. In addition, especially in the case of a crawler type traveling unit, it is possible to move freely even in an accumulation site where industrial waste is scattered.

A method of using the tab type crusher according to claim 9 of the present invention is characterized in that the tab type crusher is used for crushing an object to be crushed made of a synthetic resin. The method of use of the present invention includes a case where a synthetic resin crushed object is crushed using a tab crusher bit for wood. Among the synthetic resins, hard engineering plastics such as polycarbonate are surely crushed even when such a tab-type crusher bit is used, and the object of the present invention is achieved.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the drawings used in the second and subsequent embodiments, the same components as those in the first embodiment described below are designated by the same reference numerals, and the description thereof in the second and subsequent embodiments will be omitted or simplified. .

[First Embodiment] FIG. 1 is a side view showing the entire self-propelled tab crusher 1 according to the first embodiment, FIG.
FIG. 3 is a plan view and a front view thereof. FIG. 4 is an enlarged view showing a main part of the self-propelled tab crusher 1, and FIG. 5 is a sectional view showing the main part.

1 to 3, a self-propelled tub type crusher 1 is provided so as to be capable of crushing industrial wastes made of synthetic resin, and a vehicle body 3 provided with a crawler type running portion 2 is provided. And a power unit 4 mounted on the rear side (right side in FIG. 1) of the vehicle body 3 and a tab type crusher mounted on the vehicle body 3 at a position substantially above the traveling unit 2. Machine 5,
From the crawler below the vehicle body 3 to the front (left side in FIG. 1)
Belt conveyor 6 extending upward toward
It has and.

The running portion 2 of the vehicle body 3 is of the crawler type in this embodiment, but may of course be of the tire type. Industrial waste made of synthetic resin that is crushed may be accumulated in the collection site, and if the traveling unit 2 is of a crawler type in particular, it may not be said that ground conditions are not favorable due to scattering of crushed objects. However, it is possible to move freely. Conversely,
If it is a tire type, it is possible to easily move between the collection sites in various places, such as when the crusher meets the safety standards as a road transportation vehicle.

The power unit 4 is composed of a diesel engine (not shown), a hydraulic pump driven by the diesel engine, a control valve for controlling hydraulic oil from the hydraulic pump, and the like. 2, hydraulic motors provided on the tub crusher 5 and the discharge belt conveyor 6 are driven.

The tab type crusher 5 is provided with a cylindrical rotary tab 11 into which an object to be crushed is put, and a crushing device 12 arranged below the rotary tab 11, and these are driven by individual hydraulic motors. It The crushing device 12 is commonly called a hammer mill.

The rotary tab 11 of the tab type crusher 5 is covered with a shatterproof cover 13 which is openable and closable at a part of the upper opening. The shatterproof cover 13 has a function of preventing shattered pieces and the like from scattering outside the rotary tab 11, and is inclined downward toward the inside of the rotary tab 11, so that the shatterproof cover 13 in a closed state. Even if the crushed object is put on the upper side, the crushed object is smoothly put into the rotary tab 11.

On the inner peripheral surface of the rotary tab 11, projections 14 projecting inward are provided at equal intervals in the circumferential direction, and the projections 14 hit the crushed object during rotation, so that the crushed object is It is reliably sent to the crushing device 12 side. And the rotating tab 1
The bottom portion 15 of No. 1 is provided with a flat rectangular opening 16, and the crushing device 12 exposed from the opening 16 crushes the object to be crushed.

Further, a deflector 17 is attached to one side of the opening 16 in the bottom 15 and the opening 16 is provided.
Directionality is imparted to the crushed material scattered upward from the inside so that the crushed material can surely collide with the inside of the scattering prevention cover 13 to more effectively prevent the crushed material from scattering outside the rotary tab 11.

The crushing device 12 includes a rotating body 21 (an arrow R1 in FIG. 5 indicates a rotating direction) which is driven to rotate at a high speed by a hydraulic motor (not shown). Main shaft 2 of this rotating body 21
A plurality of (7 in the present embodiment) circular plates 23 are attached to 2 at equal intervals along the axial direction. In the gap between the circular plates 23, as shown in FIG. 5, a pair of hammers 24 are attached so as to face each other across the main shaft 22 in the radial direction. Note that the deflector 17 is not shown in FIG.

One of these hammers 24 is composed of four shafts 25 (25 which penetrate all seven circular plates 23).
A to 25D), the two shafts 25A and 25B are inserted, and the other one is the remaining two shafts 25C and 25B.
It is inserted in 5D. However, in another adjacent gap, the hammer 24 is displaced by 90 degrees in the rotation direction. For example, in the gap adjacent to the portion shown in FIG. 5, one of the hammers 24 is the shaft 25B, 25C and the other is the shaft. 25
D and 25A are inserted respectively. Therefore, the mounting structure of such a hammer 24 is the same in every other gap.

Each hammer 24 is provided with a mounting portion 26 having a through hole, and the mounting portion 26 is provided with a mounting portion 26 as shown in FIGS.
A tab type crusher bit (hereinafter, simply abbreviated as bit) 30 is also inserted and fixed by a nut 27. Here, in each mounting portion 26, the penetrating direction of the through hole, that is, the inserting direction of the bit 30 is different as shown in FIG.

Specifically, as shown in FIGS. 9A to 9D, in the three bits 30 that appear at the same timing for each quarter rotation, the insertion directions are different from each other. Further, when comparing FIGS. 9A and 9C, or FIG.
As is clear from comparison between (B) and (D), the pair of bits 30 mounted in the same gap also have different insertion directions. By doing this, a small bit 3
Even when 0 is used, the object to be crushed is crushed substantially evenly over substantially the entire axial direction of the rotating body 21, and finer crushing is possible.

On the outer peripheral side of the rotating body 21, a metal screen 28 is arranged with a slight gap from the rotation track T of the outermost periphery of the bit 30 (shown by a chain line in FIG. 5). There is. The screen 28 has a large number of outlets 2
8A is provided, and the crushed crushed material is discharged through the discharge port 28.
It is discharged from A onto the above-mentioned discharging belt conveyor 6.

Locking bars 28B (see also FIG. 9) are fixed to the upper end portions on both sides of the screen 28, and flange members 28C are fixed to the side end portions by welding or the like.
Such a screen 28 is dropped from above into a rectangular tubular case (not shown) and locked in the case by a locking bar 28B. The rotating body 21 described above is also accommodated in the case via an appropriate bearing.

The bit 30 will be described below in detail with reference to FIGS. 6 to 8. The bit 30 is composed of a bit body 31 that is used for crushing a crushed object and an insertion portion 32 that is integrally provided on the bit body 31 and that is inserted into the attachment portion 26 described above. The nut 27 (FIG. 9 or the like) is screwed into the threaded portion 33 formed in the portion 32, so that the nut 32 is attached to the mounting portion 26.

The bit body 31 has a block shape, not the conventional warhead shape. Further, the tip edge 34 of the bit body 31 is formed in a linear shape in a plan view (FIG. 7), which is significantly different from the conventional shape having an acute V-shape.
In the bit body 31, the contact surface 35 that is most likely to contact the object to be crushed at the time of crushing has a slight groove 35A, but is a flat surface as a whole. In addition,
The groove 35A is a shallow recess 35B provided on the contact surface 35.
It is formed by fixing the cemented carbide chip 35C inside and extends over a surface perpendicular to the contact surface 35.

As shown in FIG. 5, such an abutment surface 35 has the rotating body 21 when the bit 30 is attached.
Is inclined toward the rotation direction side with respect to the radial direction of the arrow (arrow R2
It is easy for the abutting surface 35 to catch the thrown object to be crushed.

Further, in FIG. 8, the back side of the bit body 31 (the surface opposite to the contact surface 35) is a pushing portion 36 having an inclined surface 37. According to this pushing section 36,
When the bit 30 is attached to the attachment portion 26, as shown in FIG.
8, the outermost rotation track T of the bit 30 is formed on the tip end side of the pushing portion 36.

From the above, the crushed crushed material is pushed between the screen 28 and the pushing portion 36 and is sandwiched, and is securely held in the sandwiched state.
The inner surface of the screen 28 slides while coming into contact with the rotation of the. If such a pushing portion 36 is too far from the screen 28, the friction with the crushed material will be small, and the pushing force of the crushed material and the holding force during rotation will be small.

In FIG. 7, the tip edge 34 of the bit body 31 is inclined at an angle θ with respect to the insertion direction of the insertion portion 32, that is, the axis L of the insertion portion 32 in plan view. As the bit 30, there are prepared one in which the tip edge 34 is inclined in the direction shown in FIG. 7 and one in which the tip edge 34 is inclined on the opposite side, which are selectively used according to the insertion direction. That is, as shown in FIG. 9, when inserted, the bit body 3
The tip edge 34 of No. 1 and the edge of the locking bar 28B facing the tip edge 34 of No. 1 are selected to be parallel to each other, and the gaps between them are made uniform. In the case of the tab type crusher for exclusive use of synthetic resin, the inserting direction (axis L) of the bit 30 and the rotating direction of the rotating body 21 are made to be the same in a plan view, and the tip edge 34 and the edge of the locking bar 28B are aligned. You may make it parallel. In this case,
The angle θ shown in is 90 degrees.

The self-propelled tub type crusher 1 of the present embodiment described above is a collection site where industrial waste made of synthetic resin is collected, a crushing factory specialized in industrial waste having such a collection site, etc. Will be deployed to.

The actual crushing work is performed as follows. First, the crushed material such as the industrial waste is charged into the rotary tab 11 by an appropriate charging means such as a power shovel or a charging container. The crushed material is sent to the opening 16 side of the bottom portion 15 by the rotation of the rotary tab 11 and crushed by the crushing device 12.

The actual crushing is basically carried out by shearing caused by the straight tip 34 of the bit 30 hitting the object to be crushed vigorously. Have different crushing mechanisms. Further, one of the locking bars 28B (FIG. 9) of the screen 28 also serves as a receiving portion of the crushed object, and at the time when the tip edge 34 of the bit 30 passes through the locking bar 28B, the contact surface 35 is formed. A part of the material to be crushed caught by is pushed by the bit 30 between the screen 28 and the other part, and the other part collides with the locking bar 28B, at which time shear is more reliably generated. This is particularly effective for crushing a thin and lightweight object to be crushed.

The crushed material crushed in this way has a discharge port 28A of the screen 28 as long as it has a predetermined size or smaller.
Is discharged onto the discharge belt conveyor 6 from which it is discharged to a dedicated container or the like, or is accumulated at a predetermined position. On the other hand, the crushed material that has been crushed to a size larger than a predetermined size slides while being sandwiched between the pushing portion 36 of the bit 30 and the screen 28, and the discharge port 2 in between.
By being repeatedly scraped at the edge of 8A, or once coming out of the opening 16 into the rotary tab 11 and being subjected to crushing again, it finally becomes a predetermined size and is discharged from the discharge port 28A.

According to this embodiment, the following effects are obtained. (1) In the tab type crusher 5 of the self-propelled tab type crusher 1, the tip edge 34 of the bit 30 used in the crushing device 12 is a straight line, and is a "line" with respect to the crushed object. Since it will hit, not only crushed objects made of hard engineering plastics such as polycarbonate, but also thin and lightweight synthetic materials such as PET bottles, resin cases, packs for packing, egg packs, resin sheets, etc. Even a crushed object made of resin can be easily caught by the bit 30, and can be reliably crushed while being prevented from being flipped.

(2) Further, in the bit 30, since the linear tip edge 34 vigorously hits, the object to be shredded is sheared, and the object to be shredded is shredded into small pieces, so that a slippery surface is formed. Even the vinyl chloride pipe and the crushed object made of the fluorine-based synthetic resin can be crushed without fail.

(3) Since the contact surface 35 of the bit 30 is formed to be flat, it is possible to further suppress the crushed object from being blown off, as compared with a warhead-shaped bit that is often hit by a curved surface. , Can be easily cut into pieces according to the size of the contact surface 35. In addition, if the contact surface 35 is flat, the shredded crushed material remains on the contact surface 35 and the bit 3
Since it rotates together with 0, it can be efficiently carried to the discharge side, and the discharge efficiency can be improved. Particularly, in the case of a thin and lightweight crushed object, the crushed object can be caught by the contact surface 35 and a part of the crushed object can be vigorously collided with the locking bar 28B. It can be generated and crushed well.

(4) The inclined surface 3 is provided on the back side of the bit 30.
Since the pushing portion 36 having the number 7 is provided, the crushed crushed material can be moved while being rubbed against the inner surface of the screen. Therefore, even if the crushed material is larger than the discharge port 28A of the screen 28, the crushed material is discharged from the discharge port 28A.
It can be ground at the edge of A, and the productivity of the crushed object can be improved. Further, since the crushed material is scraped and discharged to a predetermined size corresponding to the discharge port 28A, the size of the obtained crushed material can be made uniform. The crushed material moves while contacting the inner surface of the screen 28, so that the crushed material can be efficiently discharged from the discharge port 28A.

(5) Crushing device 12 equipped with rotating body 21
Is a structure that is crushed by a bit 30 that rotates at a high speed, unlike a conventional bite-type crusher such as a 1- or 2-axis type, and the bit 30 has a linear tip edge 34. Therefore, long and slender crushed objects can be reliably caught and crushed.

(6) The abutment surface 35 of the bit 30 has its tip (tip edge 34) side inclined toward the rotational direction side with respect to the radial direction of the rotating body 21, so that the crushed object is abutted on the abutment surface 35. With this, it can be more easily caught and the crushing efficiency can be further improved.

(7) Since the self-propelled tub type crusher 1 is provided with the crawler type traveling unit 2, it can move freely even in an accumulation site where industrial waste is scattered. Therefore, it is possible to save the trouble of carrying the object to be crushed from the collecting place to the self-propelled tab type crusher 1, and to efficiently perform the crushing work. Further, if the crushing work is carried out at such a dumping site, the crushed material can be directly transported from the dumping site to the final disposal site for recycling. Therefore, it is not necessary to bring the crushed object to the crushing factory, the crushing cost can be greatly reduced, and a small crushed crushed object can be transported in a large amount per unit volume,
The transportation efficiency can be significantly improved.

(8) Further, by providing the crawler type traveling unit 2, if the bit 30 used in the present embodiment is replaced with a bit for wood as needed, it is possible to use it at a felling site in a forest. It is possible to crush wood by entering a dam site with a lot of driftwood, and to effectively use the self-propelled tab crusher 1.

[Second Embodiment] FIGS. 11 to 13 show a bit 30 according to a second embodiment of the present invention. The bit 30 has a structure in which a cemented carbide material 35D is build-up welded (welded) to the contact surface 35 and a surface perpendicular to the contact surface 35, and the tip edge 34 is linear like the first embodiment,
Moreover, the contact surface 35 is formed flat.

On the other hand, in the present embodiment, as shown in FIG. 10, the fixed blade 40 is bolted to the one locking bar 28B. As shown in FIG. 14, the fixed blade 40 has a total of six receiving blade members 4 corresponding to the gaps between the circular plates 23.
The pair of bits 30 having different insertion directions pass through one receiving blade member 41.

The cutting edge of each receiving blade member 41 is bent in a valley shape, and the fixed blade 40 as a whole has a wavy cutting edge 4 in the blade width direction.
3 is formed. As described above, the “wavy” in the present invention does not have to be continuous in the blade width direction of the fixed blade 40. Further, the "wavy" is not limited to a shape that is bent in a mountain / valley shape, and may be a curved shape such as a sine wave.

In each receiving blade member 41 shown in FIG. 14,
The tip edges 34 of the bits 30 having different insertion directions are opposed to the pair of inclined blade edges 42 forming the blade edge. At this time, the tip edge 34 of each bit 30
Are formed so that the gaps between the opposing blade edges 42 are uniform in the blade width direction, and the axis L (FIG. 12) and the tip edge 34 are formed.
Although the angle θ formed by and (FIGS. 7 and 12) is different from that of the first embodiment, it is the same as that of the first embodiment in that the gap is uniform.

Even in such an embodiment, each of the above-mentioned effects can be obtained by the same configuration as that of the first embodiment, and in addition, the following effects can be obtained. (9) Since the locking bar 28B is provided with the fixed blade 40, the crushed object can be more positively sheared as compared with the first embodiment in which the locking bar 28B also serves as a simple receiving portion. The crushing work can be performed more efficiently. Since the crushed object is easily sheared, the driving energy of the rotating body 21 may be small and labor saving can be promoted.

(10) Further, the blade edge 43 of the fixed blade 40 is formed in a wavy shape by a plurality of slanted blade edges 42, and the tip edge 34 of the bit 30 is also slanted so as to face this, so that it is simply straight line. Blade edge 43 and tip edge 34
The contact length with respect to the object to be crushed can be increased, shearing is more likely to occur, and the object to be crushed can be more easily broken.

(11) The fixed blade 40 includes a plurality of receiving blade members 41.
Therefore, even if a part of the blade edge 42 is spilled, it is sufficient to replace the receiving blade member 41 in that part, and the maintenance can be economically performed.

[Third Embodiment] A bit 30 according to the third embodiment will be described with reference to FIGS. 15 and 16. The bit 30 of the present embodiment includes a bar-shaped bit body 31, and the bit body 31 is provided with a wavy tip edge 34 that continuously faces the five receiving blade members 41. That is, it can be said that the leading edge 34 is formed in a bent line shape within a range of an obtuse angle, and is included in claim 1 of the present invention.

Such a long bit 30 is mounted across the mounting portions 39A of the three mounting members 39 mounted in the same row, and is fixed by bolts 39B from two orthogonal directions. Note that, as in the second embodiment, the fixed blade 40
The gap between the blade edge 43 and the tip edge 34 of the bit 30 is uniform. The mounting member 39 is a component of the bit 30 and is mounted on the mounting portion 26 in the same manner as the bit 30 of the first and second embodiments. Other configurations are substantially the same as those in the second embodiment. In addition, when the driving force of the tab type crusher 5 is large, the continuous bit 30 provided with the longer wavy leading edge 34 facing all the receiving blade members 41.
May be used.

According to this embodiment, the above-mentioned (1) to (11)
In addition to the above effects, there are the following effects. Bit 3 of this embodiment
Since 0 is a long length facing the five receiving blade members 41, the bit 30 having the long tip edge 43 is passed through every four quarter rotations with respect to the four receiving blade members 41 near the center. It is possible to efficiently perform crushing and improve productivity of the crushed material.

Further, since the bit 30 is long, it is possible to reliably catch even small crushed objects or elongated crushed objects, and to improve the crushing efficiency of these. Further, since the force of pushing the crushed material between the screens 28 and the holding force of the crushed material are increased, the function of the pushing portion 36 can be more reliably exhibited, and the effect of the above (4) is remarkable.

[Modifications] The present invention is not limited to the above-described embodiments, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. . For example, in the first and second embodiments, the tip edge 34 of the bit 30 has a linear shape, but as shown in FIG. 17A, it may have a bent line shape having two bent portions 38. As shown in FIG. 17 (B), it may be a polygonal line having four bent portions 38. In addition, if the angle at the bent portion 38 is obtuse, the number of bent portions 38 is arbitrary, and the number of bent portions 38 in the case of a polygonal line is not limited to two or four. Furthermore, the shape of the tip edge 34 is not limited to a straight line shape or a polygonal line shape, and may be formed with a gentle curve as shown in FIG. Further, although not shown, the present invention includes a tip edge having a shape in which a straight line and a curve are combined or a shape in which a polygonal line and a curve are combined.

In each of the above-described embodiments, the contact surface 35 of the bit 30 has the tip edge 34 side inclined to the rotation direction side.
The bit 30 may be mounted so that the in-plane direction of the contact surface 35 is the same as the radial direction of the rotating body 21, and even in such a case, the effect of (6) described above can be obtained in substantially the same manner. .

In the bit 30 of each of the above-described embodiments, the pushing portion 36 having the inclined surface 37 is provided, but the pushing portion 3
The shape and the like of 6 are arbitrary, and may be appropriately determined when implementing them. For example, although the inclined surface 37 is not so close to the screen 28, a protrusion is provided on the inclined surface 37.
You may form the pushing part which concerns on this invention with this protrusion part. However, the pushing portion is not an essential component of the present invention, and even if there is no such pushing portion, it is included in other inventions except claim 3.

Further, in the bit 30 of each of the above-mentioned embodiments, the contact surface 35 is a flat surface, but as the bit of the present invention, the tip edge is linear, polygonal, gently curved, or those. Any shape that combines
The contact surface may be a curved surface or the like. Even in this case,
The object to be crushed of the synthetic tree can be reliably crushed at the tip edge, and the object of the present invention can be achieved. However, in order to obtain the effect of (3) described above, it is desirable that the contact surface 35 be a flat surface.

In the first embodiment, the locking bar 28B also serves as the receiving portion, and shearing is promoted by hitting the crushed object there, but it is parallel to the edge of the locking bar 28B. Even when the bit 30 (FIG. 9) provided with the tip edge 34 is used, a fixed blade may be provided on the locking bar 28B as in the second and third embodiments, whereby the crushing is actively performed. You may crush things.

The tab-type crusher of the present invention is not limited to the one mounted on the vehicle body 3 having the traveling section 2 as in the above embodiment, but may be a stationary type installed in a crushing factory or the like. It may be. Further, the tab type crusher may be movable, but in this case, it is not necessarily required to be a self-propelled type, and may be provided with wheels or the like so as to be towable.

As the self-propelled tub type crusher of the present invention, as described in the first embodiment, not only when the crawler type traveling unit 2 is provided, but also when the tire type traveling unit is provided,
It is included in the self-propelled tab crusher of the present invention. Further, it may be provided with a composite type running portion of a tire type and a crawler type,
The form of the traveling unit to be provided may be determined in consideration of the traveling ground and the road surface condition.

As a method of using the tab type crusher of the present invention, a tab type crusher may be used for crushing a synthetic resin crushed object. , And is not particularly limited.
Even in such a case, the object to be crushed made of a hard synthetic resin such as engineered plastic is surely crushed by the impact of the bit and the material is limited, but the object of the present invention can be achieved.

[0074]

[Brief description of drawings]

FIG. 1 is a side view showing an entire self-propelled tab crusher according to a first embodiment of the present invention.

FIG. 2 is a plan view of a self-propelled tab crusher.

FIG. 3 is a front view of a self-propelled tab crusher.

FIG. 4 is an enlarged view showing a main part of a self-propelled tab crusher.

FIG. 5 is a sectional view showing a main part of a self-propelled tab crusher.

FIG. 6 is an overall perspective view showing a tab-type crusher bit used in the first embodiment.

FIG. 7 is a plan view showing a main part of the tab-type crusher bit of the first embodiment.

FIG. 8 is a side view showing a main part of the tab-type crusher bit of the first embodiment.

FIG. 9 is a view showing an arrangement state of tab-type crusher bits of the first embodiment.

FIG. 10 is a sectional view showing a main part of a second embodiment of the present invention.

FIG. 11 is an overall perspective view showing a tab-type crusher bit used in the second embodiment.

FIG. 12 is a plan view showing a main part of a tab-type crusher bit according to a second embodiment.

FIG. 13 is a side view showing a main part of a tab type crusher bit according to a second embodiment.

FIG. 14 is a view showing an arrangement state of tab-type crusher bits of the second embodiment.

FIG. 15 is a side view showing a tab-type crusher bit used in the third embodiment.

FIG. 16 is a view showing an arrangement state of tab-type crusher bits of the third embodiment.

FIG. 17 is a plan view showing a modified example of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Self-propelled tab type crusher, 2 ... Running part, 3 ... Car body
5 ... Tab type crusher, 11 ... Rotating tab, 12 ... Crushing device,
16 ... Opening part, 21 ... Rotating body, 28 ... Screen, 30
... Tab-type crusher bit, 34 ... Tip edge, 35 ... Flat surface contact surface, 36 ... Pushing section, 40 ... Fixed blade, 43
… The cutting edge.

Claims (9)

[Claims] 1. A tab type crusher bit, wherein a tip edge (34) is formed to have any one of a straight line, a bent line bent within an obtuse angle range, and a gentle curved line in a plan view. A tab-type crusher bit (30) characterized in that it is formed into a shape that is either one of them or any combination thereof. 2. The tab-type crusher bit (30) according to claim 1, characterized in that it has a flat surface (35) for hitting an object to be crushed. . 3. The tab-type crusher bit (30) according to claim 1 or 2, wherein the tab-type crusher (5) provided with a screen (28) is rotated during rotation. Crush the crushed material into the screen (2
Pushing part (3) that allows sliding while contacting the inner surface of 8)
6) A tab type crusher bit (30), characterized in that the bit (30) is provided. 4. A tab type crusher comprising: a rotary tab (11) into which an object to be crushed is thrown; A tab type crusher bit attached to a rotating body (21) constituting an apparatus (12), wherein the tab type crusher bit is the tab type crusher according to any one of claims 1 to 3. Bit for crusher (30)
Tab crusher (5), characterized in that 5. The tab type crusher (5) according to claim 4, wherein the tab type crusher bit (30) includes a flat surface (35) for hitting an object to be crushed. 35) is a tab-type crusher characterized in that it is along the radial direction of the rotating body (21), or the tip side is inclined toward the rotating direction side of the rotating body (21) with respect to the radial direction. Machine (5). 6. The tab type crusher (5) according to claim 4 or 5, wherein a part of the rotating body (21) of the crushing device (12) is an opening in the rotating tab (11). It is exposed from (16), and a fixed blade (40) corresponding to the tab type crusher bit (30) is attached near the edge of the opening (16). Tab type crusher (5). 7. The tab type crusher (5) according to claim 6, wherein the blade edge (43) of the fixed blade (40) is formed in a wave shape along the blade width direction. Edge (34) of the working bit (30)
The tab-type crusher (5) is characterized in that the clearance between the fixed blade (40) and the blade tip (43) is formed to be substantially uniform in the blade width direction. 8. A self-propelled tub type crusher comprising a vehicle body (3) having a traveling part (2) and a crusher mounted on the vehicle body (3). A self-propelled tab type crusher (1), which is the tab type crusher (5) according to any one of claims 4 to 7. 9. Use of a tab type crusher (5), characterized in that the tab type crusher (5) is used for crushing an object to be crushed made of a synthetic resin. Method.