JPH03160B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention relates to an apparatus for pelletizing solid waste such as scrap wood.

(2) Conventional technology Traditionally, solid waste such as scrap wood has been used as fuel or in landfills, but in that case, the solid waste has been treated in its original form. It was troublesome to handle and had poor transportation efficiency.

(3) Problems to be Solved by the Invention The present invention has been made in view of the above circumstances, and it not only makes the solid waste such as scrap wood into pellets to facilitate the handling of the solid waste, but also It is an object of the present invention to provide a pelletizing device for solid waste, which has a simple and compact structure and can improve transportation efficiency.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention includes a fixed support frame; rotatably supported by the support frame with a substantially horizontal axis; a drive shaft interlocked with a drive source; a cylindrical die having internal teeth formed on its inner circumferential surface and a plurality of die holes bored between the inner circumferential surface and the outer circumferential surface; a holding means for holding the frame in a rotatable manner around a rotational axis offset from the axis of the drive shaft; The press roller is characterized in that the press roller is provided with external teeth that mesh with the internal teeth so that the die rotates in conjunction with the roller.

(2) Operation If the pressure roller is rotated by the drive source via the drive shaft, the die will surely rotate in conjunction with the pressure roller due to the mutual meshing of the internal and external teeth. The solid waste is forced into the die hole by a pressure roller and pelletized.

(3) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, in FIGS. 1 and 2 showing a first embodiment of the present invention, a pelletizing apparatus 1 according to the present invention has a fixed support frame. 2, and a drive shaft 4 having a substantially horizontal axis, rotatably supported by the support frame 2, and having one end connected to the drive source 3.
, a cylindrical die 5 that is rotatable around a rotation axis that is deviated from the axis of the drive shaft 4 , a holding means 6 provided on the support frame 2 to rotatably hold the die 5 , and the drive shaft 4 and the like. It includes a pressing roller 7 having a smaller diameter than the inner diameter of the die 5, which is fixed to the end and comes into contact with the inner circumferential surface of the die 5.

The support frame 2 is fixed to a stand (not shown), and the drive shaft 4 is rotatably supported by the support frame 2 via bearings 8 and 9. One end of a drive shaft 4 protruding from one end of the support frame 2 is operatively connected to a drive source 3 via a transmission means 10 such as a gear train.

Internal teeth 11 are carved on the inner circumferential surface of the die 5, and a plurality of die holes 12 are bored continuously between the inner circumferential surface and the outer circumferential surface of the die 5, continuing from the valleys of the internal teeth 11. Ru. These die holes 12 are formed so that the diameter gradually becomes smaller from the inner side to the middle along the radial direction of the die 5.

The holding means 6 consists of three circumscribing rollers 13 arranged at equal intervals in the circumferential direction so as to be in sliding contact with the outer circumferential surface of the die 5, and each circumscribing roller 13 is connected to a shaft 14 implanted in the support frame 2. is rotatably supported via bearings 15 and 16. Each shaft 14 is arranged parallel to the drive shaft 11, and each circumscribed roller 13
holds the die 5 while rotating around each axis 14 in accordance with the rotation of the die 5.

The pressure roller 7 is fixed to the other end of the drive shaft 4 within the die 5, and the pressure roller 7 is provided with external teeth 17 that mesh with the internal teeth 11 of the die 5.
Therefore, the die 5 is rotated by the rotation of the pressing roller 7 which is integral with the drive shaft 4. die 5
A cutter 18 is fixed to the support frame 2, and the cutting edge of the cutter 18 is placed at a constant distance from the outer peripheral surface of the die 5.

At the other end of the support frame 2, each circumscribed roller 13 is provided.
A cover 19 that covers the die 5 and rotatably supports the other end of the drive shaft 4 is fixed, and a discharge port 20 is provided at the bottom of the cover 19. Further, a chute 21 is integrally provided on the cover 19, and the lower end of this chute 21 is inserted into the die 5.

Next, the operation of this embodiment will be explained. Solid waste such as waste wood and bark is fed into the die 5 from the chute 21. On the other hand, when the drive source 3 starts operating, the die 5 is rotated by the rotation of the pressing roller 7 that is integrated with the drive shaft 4 . At this time, the solid waste is bitten between the external teeth 17 of the pressure roller 7 and the internal teeth 11 of the die 5, and is passed through the valley of the internal teeth 11 into the die hole 1.
Pushed into 2. Die hole 12 of this solid waste
The solid waste is pushed in sequentially every time the die 5 rotates once, and the solid waste moves outward in the die hole 12 along the radial direction of the die 5, and is extruded from the outer surface of the die 5. be done. At this time, the part protruding from the outer circumferential surface of the die 5 is sequentially cut or broken by the cutter 18 according to the rotational movement of the die 5, and the pellet 2 is
2 and is discharged from the discharge port 20.

3 and 4 show a second embodiment of the present invention, and parts corresponding to the first embodiment are given the same reference numerals. In this second embodiment, the die 5' is provided with internal teeth 11' at a portion axially shifted from the portion where the die hole 12 is bored, and correspondingly, the press roller 7' is provided with internal teeth 11'. , a pressing part 23 that slides into contact with the inner surface of the die 5' at a portion where the die hole 12 is bored, and an external tooth 17' that is carved at a position apart from the pressing part 23 and meshes with the internal tooth 11'. provided. In this second embodiment as well, solid waste is forced into the die hole 12 and pellets 22 are formed.

FIG. 5 shows a modification of the holding means, in which a circumscribing roller 25 is in sliding contact with the outer circumferential surface of the lower part of the die 5, and a side portion on the side on which the pressing force of the pressing roller 7 is applied is in sliding contact with the outer circumferential surface of the die 5. The holding means 24 is constituted by the circumscribed roller 26.

FIG. 6 shows another modification of the holding means,
A single external roller 25 that slides on the lower outer peripheral surface of the die 5 and at least one internal roller 28 that has external teeth 27 that mesh with the internal teeth 11 and is rotatably supported on the support frame 2. A holding means 29 is thus constructed.

C. Effects of the Invention As described above, the device of the present invention includes: a fixed support frame; a drive shaft having a substantially horizontal axis, rotatably supported by the support frame and interlocked with a drive source; and an inner circumferential surface. a cylindrical die in which internal teeth are formed and a plurality of die holes are bored between the inner circumferential surface and the outer circumferential surface; this die is mounted on the support frame and rotated offset from the axis of the drive shaft; At least a holding means for rotatably holding the die around an axis; and a pressure roller having a smaller diameter than the inner diameter of the die, which is fixed to the drive shaft and comes into contact with the inner circumferential surface of the die; The roller is provided with external teeth that mesh with the internal teeth so that the die rotates in conjunction with the roller, so if the pressure roller is rotationally driven by the drive shaft via the drive shaft, the internal teeth and external teeth will mesh with each other. The die can be reliably rotated in conjunction with the pressure roller, and at this time, the solid waste inside the die can be forcibly pushed into the die hole by the pressure roller and turned into pellets. As well as making it easier to handle waste,
The efficiency of transporting solid waste will be improved. In particular, in order to rotate the die, the relatively large diameter inner teeth of the die are engaged with the relatively small diameter outer teeth of the pressure roller, which can be used to push solid waste into the die hole. The pressing roller can be used both as a rotational drive means for the die and as a deceleration means for decelerating and transmitting the rotation of the roller to the die during the drive. Therefore, even if the die itself is relatively large, The structure of the drive device as a whole can be simplified and miniaturized, making it easy to handle and contributing to cost reduction.

[Brief explanation of the drawing]

1 and 2 show a first embodiment of the present invention, FIG. 1 is a vertical side view, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIGS. This shows a second embodiment of the invention, in which FIG. 3 is a longitudinal sectional side view, FIG. 4 is a sectional view taken along the line -- in FIG. 3, and FIGS. 5 and 6 are sectional views showing modified examples of the holding means, respectively. It is. 1... Pelletizing device, 2... Support frame, 3...
Drive source, 4... Drive shaft, 5, 5'... Die, 6, 24,
29... Holding means, 7, 7'... Pressing roller, 11,
11'...Internal teeth, 13, 25, 26... External roller,
17... External tooth, 22... Pellet, 23... Pressing part, 2
8...Inscribed roller.

Claims (1)

[Scope of Claims] 1: a fixed support frame 2; a drive shaft 4 having a substantially horizontal axis and rotatably supported by the support frame 2 and interlocked with a drive source 3; cylindrical dies 5, 5' in which teeth 11, 11' are formed and a plurality of die holes 12 are bored between the inner peripheral surface and the outer peripheral surface; these dies 5, 5' are mounted on the support frame; 2, holding means 6, 24, 29 which are rotatably held around a rotational axis offset from the axis of the drive shaft 4; At least press rollers 7, 7' having a diameter smaller than the inner diameter of the dies 5, 5' are in contact with each other.
An apparatus for pelletizing solid waste, characterized in that external teeth 17 are provided which mesh with the internal teeth 11 and 11' so that the internal teeth 11 and 11' rotate in conjunction with each other. 2. The solid waste pelletizing apparatus according to claim 1, wherein the die hole 12 is formed in the die 5 so as to be continuous with the valley of the internal teeth 11. 3 The inner teeth 11' are arranged in the die hole 12 along the axial direction.
The external tooth 17' is engraved on the die 5' at a position offset from the pressing portion 23 that slides into contact with the inner circumferential surface of the die 5' where the die hole 12 opens, and the external tooth 17' is engraved on the pressing roller 7' at a position offset from the pressing portion 23. An apparatus for pelletizing solid waste according to claim 1, wherein the solid waste is pelletized. 4 The holding means 6, 24 hold the dies 5, 5'
Claims 1, 2 or 2 consist of at least two circumscribing rollers 13; 3. The solid waste pelletizing apparatus according to item 3. 5 The holding means 29 includes a single circumscribing roller 25 that is rotatably supported by the support frame 2 so as to be in sliding contact with the lower part of the outer circumferential surface of the die 5, 5', and an inner circumferential roller of the die 5, 5'. Solid waste according to claim 1, comprising at least two internal rollers 7, 28 rotatably supported on the support frame 2 to rotate against a surface. Equipment for pelletizing materials.