JPH04313352A - Crushing equipment - Google Patents

Abstract

PURPOSE:To provide compact crushing equipment with simple construction, rapid work speed, excellent workability and good durability capable of continuous running. CONSTITUTION:Matter to be crushed 14 passes through a charge route 15 and is put in a casing 2 from a charge port 13 and crushed by a blow of crushing tools 11 at the end of chain belts 9 which are turned at a high speed together with a rotating shaft 3. Crushed pieces 23 are sucked from an air exhaust port 20 and rise in the casing 2 by force of the air transported under pressure with an air hose 21 and pass through a gap between a gap adjusting plate 7 at the perimeter of a rotating disc 4 and the inside wall of the casing 2 to be discharged from an exhaust port above the side of the casing 2 to the outside. As the crushing equipment performs crushing, movement and discharge by using air flow rising in the casing 2, it does not cause holdup of the crushed pieces 23, etc., and has a rapid work speed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing device for crushing paper such as documents and magazines, wood pieces, plastic pieces, glass pieces, etc. into small pieces at high speed.

0002

2. Description of the Related Art Conventionally, devices that use a rotary blade to gradually cut paper such as documents and magazines into strips have been widely used. However, with this device,
When the paper gets thicker or has a hard cover, it takes longer to cut, and the rotary blade often gets stuck and doesn't move, gets damaged or deformed, which not only shortens the life of the paper, but also causes the paper to become susceptible to frictional heat. The disadvantage was that it could not be operated continuously due to overheating.

On the other hand, devices are also used that crush paper using a link chain, chain belt, etc. attached to a rotating shaft mounted in the center of a horizontal drum, but the crushed pieces are not discharged smoothly and tend to accumulate. There were some drawbacks, such as the need for a large installation area. In addition, the crushing speed of this device was not very fast, so the crushing process took a long time.

0004

[Problems to be Solved by the Invention] The problems to be solved by the present invention are to provide a compact size, simple structure, high working speed, excellent workability, and continuous operation.
An object of the present invention is to provide a crushing device with good durability.

[0005]

[Means for Solving the Problems] The gist of the present invention that solves the above problems is as follows: 1) A vertical rotating shaft is provided inside a cylindrical vertical casing, and a plurality of flexible elongated impact members are mounted at the same time. It is attached radially to the rotating shaft, and the inner circumferential surface of the casing is provided with multiple rows of raised protrusions that reach close to the tip trajectory of the striking member, and an inlet is provided on the lower side of the casing, and the material to be crushed is placed up to the inlet. An air outlet is provided on the upper side of the casing, and a grid is fitted into the outlet, so that the air sucked from the air outlet provided on the upper end of the casing is passed through the air outlet. A crushing device characterized by having an air passage for pressure feeding inside the casing 2) A rotating disk is mounted above the rotating shaft, a through hole is provided in the rotating disk, and blade plates are arranged radially on the upper surface of the rotating disk. 3) A crushing device according to claim 1, characterized in that a plurality of gap adjustment plates, which can be attached and whose attachment positions can be changed, are arranged and attached along the outer periphery of the same rotating disk. The crushing device 4) according to claim 1 or 2, characterized in that the crushing device is provided around the surface.
5) The crushing device according to any one of claims 1, 2, and 3, wherein the striking member is a chain belt; 5) A crushing tool having a V-shaped groove is attached to the tip of the striking member. A crushing apparatus according to any one of claims 1, 2, 3, and 4.

[0006]

[Operation] In the crushing device of the present invention, when the rotating shaft inside the casing is rotated at a high speed of about 1,200 to 1,500 RPM, the striking member attached to the rotating shaft rotates in a state extending perpendicular to the rotating shaft due to centrifugal force. In this rotating state, if an object to be crushed, such as paper or wood chips, is thrown into the casing from the input port, it will be repeatedly struck and crushed by the striking member rotating at high speed within the casing. At this time, when the object to be crushed comes into contact with the inner circumferential wall of the casing, it is hit by the tip of the striking member while being stopped by the protrusions provided around the inner circumferential wall of the casing, so the crushing force of the blow cannot absorb the reaction force in the air. It is much more powerful than when it is hit directly, and even large objects can be easily crushed. At this time, even if a large object to be crushed is thrown in and a large force is applied to the striking member, since the striking member has flexibility, there is extremely little risk that the striking member itself will be damaged.

[0007] In the crushing device of the present invention, air is sucked from the air outlet at the center of the upper end surface of the casing and is forced into the casing via the input path and the input port. Therefore, an air flow from the bottom to the top is generated in the casing together with the wind pressure of the spirally attached chain. In other words, an upward air current always exists within the casing. For this reason, the fragments that have been crushed into small pieces within the casing rise within the casing, pass through the grid of the discharge port on the upper side of the casing, and are discharged to the outside of the casing. Since only small pieces of a certain size or less can pass through the grid, only small pieces crushed to a certain size or smaller within the casing are discharged from the casing. Due to the centrifugal force of the chain, the crushed material rotates around the edge of the tube at high speed and is crushed along the way and discharged. Air is sucked in from the upper center. The air returned to the input port serves as a force for pushing the crushed pieces into the casing, and also prevents air and crushed pieces from being discharged from the casing to the input port.

[0008] In the crushing device of the present invention, through holes, blade plates,
Some have a rotating disk equipped with a gap adjustment plate mounted above the rotating shaft. The pieces that have risen while being crushed within the casing are passed through the gap between the inner circumferential surface of the casing and the gap adjustment plate, and are discharged from the discharge port to the outside of the casing. In other words, the rotating disk has a sorting function that allows only small pieces smaller than a certain size to pass through and rise. By changing the mounting position of the gap adjustment plate, the gap with the inner circumferential surface of the casing can be changed, and the size of the strip that passes and rises can be changed. The through holes and blades of the rotating disc are for smoothing the airflow within the casing. In addition, instead of the same rotating disk, it is also possible to attach a chain belt or the like above the same rotating shaft and form a wall body by high-speed rotation of the same rotating shaft, so that the same effect as that of the same rotating disk can be obtained.

[0009] Some of the crushing devices of the present invention have an inclined protrusion provided on the inner peripheral surface of the casing. Since the inclined protrusions improve the ability of the airflow to rise, crushed pieces can also be lifted efficiently. Therefore, crushing, moving, and discharging operations are performed without any stagnation, increasing the overall operating speed and improving work efficiency.

[0010] Some of the crushing devices of the present invention use a chain belt as the striking member. Since the chain belt has appropriate flexibility and rigidity, the object to be crushed can be crushed quickly, and the chain belt itself is very rarely damaged, which is advantageous. Note that it is also possible to use a link chain, wire, etc. instead of the same chain belt.

Some of the crushing devices of the present invention have a crushing tool with a V-shaped groove attached to the tip of the striking member. The impact of this crushing tool further improves crushing performance and greatly increases work speed. Since the crushing tool is provided with a V-shaped groove, even if the striking part of the crushing tool is worn out, the sharpness of the cutting edge is unlikely to be lost, and there is little deterioration in crushing performance.

0012

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. Figure 1 is a partially cutaway vertical sectional view of the crushing device, Figure 2 is a partially cutaway vertical sectional view of the crushing device, Figure 3 is a partially cutaway plan view of the crushing device, and Figure 4 is a partially cutaway perspective view of the tip of the chain belt. Figure 5 is a partially cutaway sectional view taken along line A-A in Figure 1, and Figure 6 is B in Figure 1.
7 is a partially cutaway sectional view taken along line CC in FIG. 1, and FIG. 8 is a partially cutaway developed view of the inner circumferential wall of the casing.

In the crushing device 1 of this embodiment, a vertical rotating shaft 3 is provided inside a cylindrical vertical casing 2, a rotating disk 4 is mounted above the rotating shaft 3, and a through hole 5 is provided in the rotating disk 4. , blade plates 6 are attached radially to the upper surface of the rotating disk 4, and a plurality of gap adjustment plates 7 are arranged and attached along the outer circumference of the rotating disk 4. Gap adjustment plate 7 is bolt 8
If you loosen it, it can be moved and the mounting position can be changed.

A plurality of chain belts 9 are attached radially to the rotating shaft 3, a crushing tool 11 having a V-shaped groove 10 is attached to the tip of the chain belt 9, and the tip trajectory of the crushing tool 11 is attached to the inner peripheral wall of the casing 2. A plurality of rows of raised protrusions 12 are provided at an angle of about 15 degrees. An input port 13 is provided on the lower side surface of the casing 2, and the material to be crushed 14 is inserted up to the entry port 13.
An input passage 15 is provided for introducing the water, and a discharge port 16 is provided on the upper side surface of the casing 2.
7 is installed. Another outlet 18 is provided below the outlet 16, and a grid 19 is attached so that only small pieces of a predetermined size or less can pass through. Further, an air hose 21 is provided for pumping air sucked from an air outlet 20 provided on the upper end surface of the casing 2 into the casing 2 via the input path 15. Air is forced to be fed by a blower 22.

The object 14 to be crushed enters the casing 2 from the input port 13 through the input path 15, and is repeatedly struck and crushed by the crusher 11 of the chain belt 9 rotating at high speed. The crushed pieces 23 rise inside the casing 2 due to the force of the air pumped by the air hose 21 and the wind pressure caused by the high speed rotation of the spirally attached chain, and are moved between the gap adjustment plate 7 on the outer periphery of the rotating disk 4 and the inside of the casing 2. It passes through the gap with the wall surface and is discharged from the discharge port 16 to the discharge path 17. Note that some of the strips 23 pass through the grid 19 of the discharge port 18 and are discharged to the discharge passage 17. The crushing work is carried out quickly by the high speed rotation of the chain belt 9 and the upward flow of air.
Workability is excellent because the pieces 23 do not remain. Since the deterioration of the crushing force of the crushing tool 11 is extremely small, the durability is good and continuous operation is possible. Further, since the crushing device 1 of this embodiment has a cylindrical vertical casing 2, the size is compact and the structure is simple. In addition,
In this embodiment, paper such as magazines is assumed as the object 14 to be crushed, but the crushing device of the present invention can also be widely applied to the field of crushing other pieces of wood, plastic pieces, glass pieces, etc. .

[0016]

[Effect of the invention] The present invention has a compact size,
It is possible to provide a crushing device that has a simple structure, high working speed, excellent workability, continuous operation, and good durability. By returning the air in the casing to the input port, it can be used as a pushing force for the crushed material, and it also prevents air and crushed pieces from being released from the input port.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway vertical sectional view of a crushing device.

FIG. 2 is a partially cutaway vertical sectional view of the crushing device.

FIG. 3 is a partially cutaway plan view of the crushing device.

FIG. 4 is a partially cutaway perspective view of the tip of the chain belt.

FIG. 5 is a partially cutaway sectional view taken along line AA in FIG. 1;

FIG. 6 is a partially cutaway sectional view taken along line BB in FIG. 1;

FIG. 7 is a partially cutaway sectional view taken along line CC in FIG. 1;

FIG. 8 is a partially cutaway developed view of the inner circumferential wall of the casing.

[Explanation of symbols]

1　Crushing device 2 Casing 3 Rotation axis 4 Rotating disk 5 Through hole 6. Feather plate 7 Gap adjustment plate 8 bolts 9 Chain belt 10 V-shaped groove 11 Crushing tool 12 Projections 13 Input port 14 Object to be crushed 15 Input path 16 Discharge port 17 Discharge path 18 Discharge port 19 Lattice 20 Air outlet 21 Air hose 22 Blower 23 Strips

Claims (5)

[Claims] Claim 1: A vertical rotating shaft is provided inside a cylindrical vertical casing, a plurality of flexible elongated striking members are radially attached to the rotating shaft, and the striking members are mounted on the inner peripheral surface of the casing. A plurality of rows of raised protrusions are provided around the casing near the tip trajectory, an input port is provided on the lower side of the casing, an input path is provided for introducing the material to be crushed to the input port, and a discharge port is provided on the upper side of the casing. In addition, a grid is fitted into the discharge port, and an air passage is provided for sucking air from the air discharge port provided on the upper end surface of the casing into the casing via the input passage. Device. [Claim 2] A rotating disk is mounted above the rotating shaft, a through hole is provided in the rotating disk, blade plates are attached radially to the upper surface of the rotating disk, and a plurality of gap adjustment plates whose mounting positions can be changed are rotated simultaneously. The crushing device according to claim 1, wherein the crushing device is arranged and attached along the outer periphery of the disk. 3. The crushing device according to claim 1, wherein the protrusion is inclined and provided around the inner peripheral surface of the casing. 4. The crushing device according to claim 1, wherein the striking member is a chain belt. 5. Claims 1, 2, 3, and 4, characterized in that a crushing tool equipped with a V-shaped groove is attached to the tip of the striking member.
The crushing device according to any one of the above.