JPS633080B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a crushing device for compressed fibrous raw materials. This raw material is compressed into large cubes and distributed (specifically, waste paper is compressed into cubes of approximately 1m x 1m x 2m using a large hydraulic packing machine called a baling press). This relates to a crushing device for compressed fiber raw materials that crushes them into their original bulk form as a pre-process in a factory.

``Prior Art'' Conventionally, commonly available powder crushing machines have a pair of rotary blades or a rotary blade and a fixed blade arranged in a casing having an input port and a discharge port. The raw material is broken into powder by the impact or shearing force generated by the rotation of the rotating blade.

``Problems to be Solved by the Invention'' However, since the conventional powder crushing machine described above breaks powder inside the casing, the size of the raw material is limited by the size of the input port, and the size is too large. If you try to break the powder by inserting raw materials into it, the raw materials may get caught between a pair of rotating blades or between a rotating blade and a fixed blade, making it impossible to operate.Also, the rotating blades cut the fibers due to their shearing action. This has the disadvantage that it is inefficient for crushing compressed fiber raw materials.

The present invention was developed in view of the above-mentioned drawbacks, and focused on the fact that compressed fiber raw materials such as waste paper bales can be used in the next process without any problems if returned to the state before the compression process. It is an object of the present invention to provide a crushing apparatus for compressed fiber raw materials, which can crush fiber raw materials in their original dimensional state with less cutting of fibers.

``Means for Solving the Problems'' In accordance with the above-mentioned object, the structure of the present invention, which is summarized in the above-mentioned claims, solves the above-mentioned problems. A large number of prismatic crushing blades 5 having a width of 3 mm or more and a length of 10 cm or more in the direction of rotation are arranged on the outer periphery of the rotating drum 4, and the side of the rotating drum 4 is On the other hand, on the side where this rotating drum 4 rotates upward, there is a raw material feeding chute 20 which is gradually lowered toward the rotating drum 4, and the lower part of the leading end side of the chute 20 is pivoted on a fulcrum 22, and the lower part of the raw material feeding chute 20 is supported on the rear end side. A lifting device 30 for adjusting the inclination angle of the raw material feeding chute 20 is connected and disposed, and a conveyor 9 is disposed below the rotating drum 4 for transporting the crushed material to a desired location, and further, At the tip of the raw material feeding chute 20, there is a crushing blade 5 whose tip is located near the outer surface of the rotating drum 4.
A technical measure is taken in which a comb-shaped receiving plate 29 is arranged through which the water passes.

``Function'' Therefore, in the compressed fiber raw material crushing apparatus of the present invention, when the compressed fiber raw material 10 is loaded on the raw material feeding chute 20, this compressed fiber raw material 10 will be crushed by its own weight to the lower side of the raw material feeding chute 20. That is, it slides toward the rotating drum 4 and presses the tip of the compressed fiber raw material 10 against the outer surface of the rotating drum 4,
This pressing force can be appropriately obtained by adjusting the inclination angle of the raw material feeding chute 20 using the lifting device 30.

When the rotary drum 4 is rotated by the motor 3 in the above state, the tip of the compressed fiber raw material 10 is scraped from bottom to top by the crushing blade 5, and the scraped and crushed compressed fiber raw material is It rotates with the rotating drum 4 and falls onto the conveyor 9 from its lower part.

When the tip of the compressed fiber raw material 10 is scraped off, the compressed fiber raw material 10 slides on the raw material feeding chute 20 due to its own weight, and is constantly pressed toward the rotating drum 4, causing the rotating drum 4 to rotate. As long as this is done, the compressed fiber raw material 10 is crushed sequentially from its tip.

"Embodiments" Next, embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, 4 is a rotating drum for crushing the compressed fiber raw material 10. This rotating drum 4 is horizontally suspended on the frame 1 and is rotated by a motor 3. The frame 1 consists of a pair of vertical frames, on the top of which a shaft 2 is pivotally supported, a rotary drum 4 is fixed to the shaft 2 with the shaft 2 as its central axis, and a motor 3 is connected to the shaft 2 by a chain. connected by loops.

A large number of prismatic crushing blades 5 having a width of 3 mm or more and a length of 10 cm or more in the rotation direction are arranged on the outer periphery of the rotating drum 4. If the crushing blade 5 is a sharp blade, it will damage the fibers and there will also be problems in maintenance, so by making the crushing blade 5 into a prismatic shape with the above dimensions, sufficient crushing force can be obtained, and durability and
It was most effective for maintenance. Further, the length of the crushing blade 5 (the length protruding from the rotating drum 4) may be set as appropriate, but if it is set to about 2 to 10 cm, the fibers will not be easily damaged and the crushing efficiency will be high. In addition,
It has been found through experiments that the spacing between the crushing blades 5 can be much wider than that of conventional crushers, and that the pitch does not exceed the size of the raw material to be crushed before compression. Furthermore, this crushing blade 5 is connected to the rotating drum 4.
Alternatively, the crushing blades 5 in the next row may be arranged in a so-called staggered manner in which the crushing blades 5 in the next row are located at an intermediate position between the crushing blades 5, 5 adjacent to each other in the rotational direction in every other row. Of course, there is no problem.

On the side of the rotating drum 4 on which the rotating drum 4 rotates upward, there is a raw material feeding chute 20 which is gradually lowered toward the rotating drum 4, and its lower end on the tip side is pivoted on a fulcrum 22. At the same time, a lifting device 30 for adjusting the inclination angle of the raw material supply chute 20 is connected to the rear end side.

The raw material feeding chute 20 is located on the side where the rotating drum 4 rotates upward (that is, when the rotating drum 4 rotates to the left in the illustrated example, the left half of the rotating drum 4 is located on the side where the rotating drum 4 rotates upwards). The reason for this is that if it is rotated in the opposite direction, the crushed raw material will become block-shaped, and the raw material feeding chute 20 and the rotating drum 4 will be rotated upward. This is because the fibers may become stuck between the fibers and the crushing blade 5, making it impossible to operate or damaging the fibers.

In addition, the raw material supply chute 20 is moved to the lifting device 3.
The reason why the angle of inclination can be changed by adjusting the angle of inclination is that when the compressed fiber raw material 10 is slid using its own weight, if the inclination is steep, it will be pressed against the rotating drum 4 more than necessary. This is because an inoperable state may occur due to overload or jamming, and the self-sliding angle of the compressed fiber raw material 10 on this raw material feeding chute 20 is such that if the compressed fiber raw material 10 is heavy, it slides at a low angle. However, if it is light, it will not start sliding unless it takes a high angle.

Therefore, the inclination angle of the raw material feeding chute 20 may be manually adjusted sequentially using the lifting device 30.
The self-sliding conditions may vary depending on the surface slip resistance of the raw material feeding chute 20, the temperature of the raw material, and the physical properties of the raw material, and in the illustrated example, the load current of the motor 3 is proportional to the crushing load. By using this, the inclination angle of the raw material feeding chute 20 is automatically adjusted based on the load current value of the motor 3 under ideal crushing conditions in which constant crushing conditions are continuous. That is, the load current of the motor 3 is measured by the ammeter 27.
The load current value detected by the ammeter 27 is compared with a reference value in the control panel 28 to drive the lifting device 30.

Further, a conveyor 9 is disposed below the rotary drum 4 to convey the crushed material to a desired location, and a crushing blade whose tip is located near the outer surface of the rotary drum 4 is disposed at the tip of the raw material supply chute 20. A comb-shaped receiving plate 29 through which 5 passes is arranged. This conveyor 9 is for conveying the crushed raw material to a desired position, and the comb-shaped receiving plate 29 is for conveying the crushed raw material to a desired position, and the comb-shaped receiving plate 29 is used to keep the crushed raw material caught on the crushing blades 5. This is to prevent the compressed fiber raw material 10 from rotating again to the portion of the compressed fiber raw material 10 on the raw material feeding chute 20, in other words, to prevent each crushing blade 5 from clogging.

In the figure, 8 is a pre-conveyor placed before the raw material supply chute 20, 11 is a side plate of the conveyor 9, 23 is a side plate of the raw material supply chute 20, 6 is an upper cover of the rotating drum 4, and 26 is the same rotating drum. drum 4
This is the lower cover. Further, 7 is a discharge port opened between the lower end of the upper cover 6 and the conveyor 9;
Reference numeral 4 indicates a brake body that presses the upper end of the compressed fiber raw material 10.

[Effects of the Invention] Since the present invention is as described above, it is possible to provide a crushing apparatus for compressed fiber raw materials that automates the crushing of the compressed fiber raw materials 10 and saves labor.

Moreover, the present invention has a width of 3 mm or more and a width of 3 mm or more in the direction of rotation.
Since the prismatic crushing blade 5 with a length of 10 cm or more is used, fibers are less likely to be cut, the durability is excellent, and maintenance is easy. Since the compressed fiber raw material 10 is placed on the side where it rotates upward,
The crushing process is performed by scraping the raw material from the bottom to the top in order from the tip, and not only does the crushed raw material not bite into other parts and make it impossible to operate, but the raw material is sheared to a minimum. It is possible to provide a crushing device for compressed fiber raw materials that can be used in a variety of ways.

Furthermore, the present invention also provides a raw material supply chute 20.
The lower part of the leading end side of the raw material feeding chute 20 is pivotally supported by a fulcrum 22, and the rear end side thereof is connected to a lifting device 30 that adjusts the inclination angle of the raw material feeding chute 20. It is possible to provide a crushing apparatus for compressed fiber raw materials that can appropriately adjust the crushing conditions by the blade 5 and sell the compressed fiber raw material under stable conditions through efficient crushing.

[Brief explanation of the drawing]

The drawing is a longitudinal cross-sectional view showing an embodiment of a crushing apparatus for compressed fiber raw material according to the present invention. 1...Frame, 3...Motor, 4...Rotating drum,
5... Crushing blade, 9... Conveyor, 10... Compressed fiber raw material, 20... Raw material feeding chute, 22... Fulcrum, 29
...Comb-shaped receiving plate, 30... Lifting device.

Claims (1)

[Claims] 1. A rotating drum 4 rotated by a motor 3 is mounted horizontally on a frame 1, and a corner having a width of 3 mm or more and a length of 10 cm or more in the direction of rotation is provided on the outer periphery of the rotating drum 4. A large number of columnar breaking blades 5 are arranged, and on the side of the rotating drum 4 where the rotating drum 4 rotates upward, there is a raw material feeding chute 20 that gradually becomes lower toward the rotating drum 4. The lower part of the leading end side of the raw material feeding chute 20 is pivotally supported by a fulcrum 22, and the rear end side thereof is connected with an elevating device 30 for adjusting the inclination angle of the raw material feeding chute 20. is provided with a conveyor 9 for transporting the crushed material to a desired location, and furthermore, a crushing blade 5 whose tip is located near the outer surface of the rotating drum 4 is disposed at the tip of the raw material supply chute 20.
A crushing device for compressed fiber raw material, which is equipped with a comb-shaped receiving plate 29 through which the fibers pass.