JPS6358609B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention is used in the field of pelletizing chips such as waste wood.

(b) Conventional technology Generally, when waste materials are used as fuel,
Pelletization is used to make handling easier and to increase transportation efficiency.

By the way, in a conventional pellet molding device, a rotating shaft is provided at the center of a horizontally fixed die, a support shaft is horizontally extended from the rotating shaft, a cylindrical roller is provided on the supporting shaft, and the roller is attached to the upper surface of the die. By rolling the chips, chips such as waste material on the die are compressed and pellets are formed through the die hole.

However, when the roller rolls on the top of the die, the distance traveled by the inside of the roller in contact with the top of the die is different from the distance traveled by the outside, so part of the roller slides on the top of the die and the roller rolls smoothly. The problem was that it was not done properly and that it wore unevenly.

(c) Problems to be solved by the invention The present invention solves the above-mentioned drawbacks by making the roller that rolls on the upper surface of the die conical so that no sliding part occurs when the roller rolls. It is.

(d) Means for solving the problem The present invention fixes a flat die horizontally, has a plurality of holes vertically in the die, has a rotating shaft in the center of the die, and A support shaft positioned on a line extending obliquely upward from the intersection of the top surface of the die and the axis of the rotation shaft is attached to the rotation shaft, and a conical roller that can roll on the top surface of the die is provided on the support shaft, The present invention relates to a pellet forming apparatus in which the die upper surface and the roller surface are in the shape of gears that mesh with each other.

(e) Example An example will be described below with reference to the drawings. Reference numeral 1 denotes a die horizontally fixed to a pedestal 2. The die 1 is formed in a circular shape and has a plurality of holes 3 extending vertically.
...is provided.

Further, flat teeth 4 are formed radially on the upper surface of the die 1, and the holes 3 are formed in the recessed portions of the flat teeth 4.
... is now located.

Reference numeral 5 denotes a rotating shaft that passes through the center of the die 1 and is rotatably supported by the die 1 via a bearing 6. Above the die 1 of the rotating shaft 5 are support shafts 7, 7 extending obliquely upward. Fixed.

Conical rollers 8, 8 are rotatably supported on the support shafts 7, 7, and conical teeth 9, 9 are formed on the surfaces of the rollers 8, 8, and the rollers 8, 8 roll while meshing with the flat teeth 4. It's becoming like that.

At that time, the center line Y of the support shaft 7 is formed so as to intersect at the intersection of the meshing surface X of the flat tooth 4 and the conical tooth 9 and the center line Z of the rotary shaft 5, and the roller 8, When the rollers 8 roll, no sliding parts occur on the rollers 8, 8.

A cutter 10 is fixed to the rotary shaft 5 below the die 1, and the cutter 10 is used to break the pellets coming out of the holes 3 into appropriate lengths.

A casing 11 is provided above the pedestal 2, and a charging hole 12 is provided in a part of the casing 11.

13 is a chute provided below the pedestal 2.

In the embodiment, the die and the roller are provided with teeth, but a structure without teeth can also have similar effects.

The present invention has the above-mentioned structure, and its operation will be explained next. First, chips of waste material are inputted from the input port 12 and deposited on the upper surface of the die 1.

Next, when the rotating shaft 5 is rotated by an appropriate driving means, the rollers 8, 8 roll on the die 1 while the conical teeth 9, 9 mesh with the flat teeth 4, and press the accumulated chips into the holes 3... do.

The chips pressed into the hole 3 gradually move downward while being compressed and solidified, and after being pushed out from the hole 3 in the form of pellets, they are transferred to the rotating cutter 1.
It is cut to an appropriate length at 0.

At this time, since the rollers 8, 8 are formed in a conical shape and are provided at predetermined positions, there are no sliding parts on the rollers 8, 8, and the teeth 4, 9 can mesh smoothly.

(f) Effects of the Invention As described above, the present invention provides a support shaft located on a line extending obliquely upward from the intersection of the top surface of the die and the axis of the rotation shaft, which is attached to the rotation shaft, and which rotates on the die. Since the conical roller is provided, it is possible to prevent the uneven wear that occurs in the conventional case and also to allow the roller to roll smoothly. Furthermore, since the top surface of the die and the surface of the roller are shaped like gears that mesh with each other, the roller rolls reliably.
The rollers can be prevented from sliding on the die, and wear on the rollers or the die can be made very small.

[Brief explanation of the drawing]

FIG. 1 is an overall sectional view, and FIG. 2 is an AA sectional view. 1 is a die, 3 is a hole, 5 is a rotating shaft, 7 is a support shaft,
8 is Laura.

Claims (1)

[Claims] 1. A flat die is fixed horizontally, a plurality of holes are provided in the die in the vertical direction, a rotating shaft is provided in the center of the die, and the rotating shaft has an axis between the upper surface of the die and the axis of the rotating shaft. A support shaft is installed on a line extending obliquely upward from the intersection with the support shaft, and a conical roller that can roll on the top surface of the die is installed on the support shaft, and the top surface of the die and the surface of the roller are shaped like gears that mesh with each other. Pellet forming equipment.