JPH074735Y2 - Electric wire shredding device - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention is an electric wire treatment that separates and collects covered electric wires by material such as copper of the core wire and vinyl chloride of the covering portion, and finely separates the electric wires as a pre-process. The present invention relates to an electric wire shredding device for performing a cutting process.

2. Description of the Related Art As one of the electric wire shredding devices for cutting the electric wire finely as described above, a drive shaft rotating in one direction is supported in a box-shaped main body having an input port formed on the upper surface, and A movable cutter is attached to the outer periphery of the rotor fixed to the drive shaft, and a fixed cutter with a plate-shaped tip edge toward the drive shaft is formed on the inner surface of the main body, and the movable movable cutter moves downward. It is attached so that it can be cut with the movable cutter at a certain position, and the structure is such that an arc-shaped screen with a large number of narrow holes is provided so as to cover the lower surface of the rotor, and the electric wire fed from the feeding port is fixed. There is used one that is cut between the cutter and the movable cutter, dropped into fine pieces through a narrow hole in the screen, and then carried out to the next step.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the electric wire shredding device having such a structure, a part of the electric wire cut between the movable cutter and the fixed cutter is hung on the impact of cutting or the movable cutter. Due to the generated momentum, it will be blown above the fixed cutter.

However, in the conventional device, since the fixed cutters are attached with the plate surface thereof oriented horizontally, the skipped slices fall on the fixed cutters one after another and gradually pile up, and the high piled slices of the rotor. There was a drawback that it collapsed upward and a large amount of pieces were caught between the fixed cutter and the movable cutter at one time, and a large load was applied to the rotor.

Means for Solving the Problems As a means for solving the above problems, the present invention has a structure in which a fixed cutter is attached in a posture in which the upper surface of the fixed cutter is inclined with the cutting edge facing downward.

The operation and effect of the present invention With the above-mentioned configuration, even if a piece of an electric wire cut between a fixed cutter and a movable cutter is blown and drops onto the fixed cutter, the fragment is the inclined upper surface of the fixed cutter. Slides down and enters the gap between the rotor and the screen as it is, or enters the gap between the rotor and the screen after further cutting.

Therefore, the slices do not pile up on the upper surface of the fixed cutter, and a large amount of broken pieces that are collapsed as in the past are caught between the fixed cutter and the movable cutter at a time, and a large load acts on the rotor. There is an effect that can be prevented.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 is a box-shaped main body in which a large opening 2 is formed in the upper surface, and a carry-out opening 3 is formed in the center of the tapered lower surface. In the hollow of the main body 1, a drive shaft 4 which is rotated in the clockwise direction A in the figure by driving a motor (not shown) is horizontally supported. A plurality of rotors 5 are fixed to the drive shaft 4 so as to rotate integrally with each other while being aligned in the axial direction. At a plurality of circumferentially spaced positions on the outer circumference of each rotor 5, movable knives 6 with the cutting edge 6a directed clockwise A are fixed, and when the rotor 5 rotates together with the drive shaft 4, The movable cutter 6 is rotated in the clockwise direction A so that its cutting edge 6a draws a circle of the same diameter.

On the inner wall surface on the left side of the main body 1, a cutter holder 8 which projects horizontally toward the rotor 5 side is fixed, and a plate-shaped fixed cutter 10 is attached to a mounting portion 9 on the upper surface of the cutter holder 8. It is fixed in a horizontal position and in a posture in which the blade edge 10a at the tip edge is directed toward the axis O side of the drive shaft 4. The fixed cutter 10 attached in this manner can cut between the movable cutter 6 and the cutting edge 6a thereof when the movable cutter 6 moves upward from below.

On the other hand, on the inner wall surface on the right side, a cutter holder 12 is fixedly provided, which projects obliquely downward toward the rotor 5 from a position higher than the cutter holder 8 on the left side. This cutter holder
A plate-shaped fixed cutter 14 is fixed to the mounting portion 13 formed on the upper surface of the 12 so that the blade edge 14a at the tip end thereof is oriented toward the axis O side of the drive shaft 4. Top of
In 14b, the rotor 5 side is inclined downward. The fixed cutter 14 attached in this manner can cut between the movable cutter 6 and the cutting edge 6 when the movable cutter 6 moves from the lower left to the lower right.

Further, below the rotor 5, a plate-shaped screen 15 having a circular arc shape whose cross-sectional shape is concentric with the drive shaft 4 and having a large number of narrow holes 16 is formed. It is provided by fixing 17 and 17 to the lower surfaces of the left and right cutter holders 8 and 12, respectively.

The present embodiment has the above-mentioned structure, and the electric wire (not shown) is inserted into the insertion port 2
When it is thrown into the hollow of the main body 1 from above, the electric wire falls on the rotating rotor 5 and moves to the right in the figure by being hooked by the movable cutter 6, and moves to the movable cutter 6 and the fixed cutter 14 on the right side. Be cut in between.

The section exposed on the fixed cutter 14 at the time of cutting is
It is flipped above the fixed cutter 14 by the impact of cutting and falls on the upper surface 14b thereof. Since the upper surface 14b of this fixed cutter 14 is inclined, the section slides down the upper surface 14b,
It is inserted into the gap between the rotor 5 and the screen 15 as it is, or is further cut between the movable cutter 6 that has moved next. By repeating this, all of the cut pieces enter the gap between the rotor 5 and the screen 15 without remaining on the upper surface of the fixed cutter 14. Then, along with the section on the side that has sunk under the movable cutter 6 at the time of cutting, the movable cutter 6 is dragged and moved, and further cut with the left fixed cutter 10.

Among the sections cut by the fixed cutter 10 on the left side, the section that has sunk under the fixed cutter 10 is cut again by the fixed cutter 10. Further, the section attached to the upper side of the movable cutter 6 at the time of cutting is moved to the right side so as to be hooked on the movable cutter 6. At this time, a part of the segment is blown above the fixed cutter 14 on the right side by the momentum of the movement and drops onto the upper surface 14b, but since the upper surface 14b is inclined, it is closer to the rotor 5 side. Once it slips off, it cuts into the gap between the rotor 5 and the screen 15 in the same manner as above.

As the above operation is repeated many times, the wire segment becomes gradually finer, and when the segment becomes sufficiently fine, it falls through the narrow hole 16 of the screen 15 and falls through the suction port 3 of the blower (not shown). It is sucked out from and is sent to a processing device for the next step (not shown).

As described above, the fixed cutter 14 on the right side is attached with its upper surface 14b inclined, and even if a piece falls on the fixed cutter 14, the piece slides down the upper surface 14b, so the fixed cutter 14 There is no stacking of slices on top of. Therefore, like the conventional device in which the fixed cutter was mounted with its upper surface in a horizontal position, the pieces piled up on the fixed cutter collapsed and a large amount of space was generated between the fixed cutter and the movable cutter at one time. A large load is prevented from acting on the rotor due to the biting of the segment.

[Brief description of drawings]

FIG. 1 attached is a sectional view of an embodiment of the present invention. 1: Main body, 2: Inlet, 4: Drive shaft, 5: Rotor, 6: Movable cutter, 14: Fixed cutter, 14a: Blade tip (of fixed cutter 14), 14
b: Top surface (of fixed cutter 14), 15: Screen, 16: Small hole

Claims (1)

[Scope of utility model registration request] 1. A box-shaped main body having a charging port formed on its upper surface, which supports a drive shaft rotating in one direction, and a movable cutter attached to the outer periphery of a rotor fixed to the drive shaft. In order to perform cutting with a fixed cutter having a plate-shaped tip edge directed toward the drive shaft side, the movable cutter that rotates can move downward at a position where the movable cutter moves downward. Attached, an arc-shaped screen having a large number of narrow holes is provided so as to cover the lower surface of the rotor, and the electric wire fed from the inlet is cut into fine pieces by cutting between the fixed cutter and the movable cutter. In the electric wire shredding device that is made to drop through the narrow hole of the screen in the above state, the fixed cutter is attached in an attitude in which the upper surface of the fixed cutter is inclined with the blade tip facing downward. Shredding device