JPS599798Y2 - Cutting waste feeding device in cutting waste crushing equipment - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) This invention is designed to temporarily remove spiral cutting waste generated from lathe processing, drilling machine processing, etc. when a large amount of it is thrown into the hopper at once. Wrap it around and store it,
The present invention relates to a cutting waste feeding device in a cutting waste cutting device that entangles a small quantity rotary cutter.

(Prior art) When cutting spiral cutting chips using a rotating cutter that partially faces the bottom of the hopper and a fixed cutter installed near the rotating cutter, the cutting chips are continuously crushed in small amounts. When put into the hopper, it is cut smoothly, but
When a large amount of cutting waste is thrown into the hopper at once, the spiral cutting waste becomes intertwined with each other and forms a lump, and when the cutting waste around the rotary cutter is crushed to some extent, a space is created around the rotary cutter. Thereafter, the cutting waste would not get entangled with the rotating cutter, making it impossible to cut.

(Structure of the invention) The present invention takes the form of a feeding mechanism in which spiral screws are wound in opposite directions from the center of the rotating shaft toward both ends, and this feeding mechanism is disposed inside the hopper. Both ends of the rotating shaft are loosely fitted into arcuate grooves formed in the side wall of the housing in a substantially vertical direction, and the tip of a swinging rod is rotatably attached to the intermediate shaft at its base end, and one end of the rotating shaft of the feeding mechanism. It is a combination of

To explain an embodiment of the present invention, as shown in FIGS. 1 to 3, a hopper 2 is attached to the upper part of a housing 1 to receive spiral cutting chips generated by lathe machining, drilling machine machining, etc., and the bottom plate of the hopper 2 is A discharge port 5 is formed in the center of the side plate 3 and the side plate 4 to allow a rotary cutter 7 and a fixed cutter 27 (to be described later) to face into the hopper 2, and a part of the rotary cutter 7 is attached approximately to the center of the rotary cutter shaft 6. facing into the hopper 2 from the discharge port 5, and the rotary cutter shaft 6
is located below the bottom plate 3 of the hopper 2, and its right end and middle part are rotatably supported by bearings 9, 9' attached to the side walls 8, 8' of the housing 1, and the rotating shaft protrudes from the outside of the housing 1. A large diameter chain gear 11 is attached to the left end of the cutter shaft 6.
Attach.

The right end and middle portion of the intermediate shaft 12 located in front of the rotary cutter shaft 6 are rotatably supported by bearings 13, 13' attached to the side walls 8, 8' of the housing 1, and protrude outside the housing 1. A small diameter chain gear 14 and a large diameter chain gear 15 are attached to the left end of the intermediate shaft 12, and a chain 16 is hung between the large diameter chain gear 15 and the small diameter chain gear 11 attached to the rotary cutter shaft 6. .

Further, as shown in FIG. 1, screws 18. which are twisted in opposite directions from the center of the rotating shaft 17 toward both ends. 18'
The feeding mechanism F, which is wrapped with

Circular grooves 19, 19' of a required diameter centered on the intermediate shaft 12 are formed in the side walls 8, 8' of the housing 1 in a substantially vertical direction, and the feeding mechanism F is disposed inside the hopper 2 and Both ends of the rotating shaft 17 are loosely fitted into the arcuate grooves 19, 19'.

Further, as shown in FIGS. 1, 3, and 5, the base end of a swinging rod 21 having a gear box 20 at its tip is pivotally attached to the intermediate shaft 12, and the feed mechanism F is connected to the gear box 20. The driven gear 23 attached to the rotating shaft 17 in the gear box 20 and the drive gear 24 attached to the intermediate shaft 22 are meshed with each other, and the driven gear 23 is attached to the intermediate shaft 22. A chain 26 is hung between the chain gear 25 and the small diameter chain gear 14 of the intermediate shaft 12.
The intermediate shaft 12 and the intermediate shaft 22 are connected through the driven gear 23 and the driving gear 24, and the intermediate shaft 22 and the rotating shaft 17 of the feeding mechanism F are connected through the driven gear 23 and the driving gear 24.

In this way, the feeding mechanism F is disposed diagonally above the rotary cutter 7 in the hopper 2 so as to be able to rise and fall freely.

Further, as shown in FIG. 2, a fixed cutter 27 is attached so as to face into the hopper 2 from the discharge port 5 so as to surround the front and both sides of the cutting edge of the rotary cutter 7.

In the figure, reference numeral 28 indicates a small hole for discharging cutting waste cut into small pieces to the outside, and reference numeral 29 indicates a chain attached to the large diameter chain gear 10 of the rotary cutter shaft 6.

(Operation of the invention) Next, to explain the operation of the invention, in FIGS. 1 to 3, when the drive motor (not shown) is started and the rotary cutter 7 is rotated clockwise, the rotary cutter shaft 6 , the intermediate shaft 12, the intermediate shaft 22, and the rotating shaft 17 of the feeding mechanism F are connected to each other via the chain 16, the chain 26, the driving gear 24, and the driven gear 23, so that the rotating shaft 17 of the feeding mechanism F is Rotates clockwise at low speed.

When a small amount of spiral cutting chips C are put into the hopper 2 in this state, the cutting chips C have entered the center of the hopper 2.
is entangled with the rotating rotary cutter 7 and guided between the rotating cutter 7 and the fixed cutter 27, where it is cut into small pieces.

In addition, cutting waste C that has entered the side of the hopper is removed from the hopper.
Screw 1 of feed mechanism F rotating at low speed in 2
8. Tangle with 18'.

However, the feeding mechanism F has screws 18., which are twisted in opposite directions from the center of the rotating shaft 17 toward both ends. 1
8' is attached, the cutting waste C is continuously fed into the center of the hopper 2, becomes entangled with the rotary cutter 7 located diagonally below the feeding mechanism F, and is cut into small pieces by the same action as described above. Ru.

Further, as shown in FIG. 4, when a large amount of cutting waste C is thrown into the hopper 2 at one time, the screw 18 of the feeding mechanism F. Although a large amount of cutting waste C gets entangled in 18', the winding diameter increases rapidly, but the circular groove 1 formed by forming both ends of the rotating shaft 17 of the feeding mechanism F into the side walls 8, 8' of the housing 1
The feeding mechanism is disposed in the hopper 2 so that it can be raised and lowered by loosely fitting it into the screws 18 and 19'. As the winding diameter of the cutting waste C entwined with 18' increases, the feeding mechanism F moves upward.

And screw 18. The cutting waste C entangled in 18' is transferred to hopper 2 by the rotation of screws 18 and 18'.
is fed into the center of the feeding mechanism F, and then entangled with the rotating cutter 7 located diagonally below the feeding mechanism F, and the fixed cutter 27
The screw 18 is cut into small pieces between
．． When the winding diameter of the cutting waste C entwined with 18' becomes smaller, the feeding mechanism F descends due to its own weight.

In this way, the feeding mechanism F has screws 18, 1
Since the spiral cutting chips C entwined with the hopper 8' move freely up and down according to the winding diameter, even if a large amount of cutting chips C are thrown into the hopper 2 at one time, they will not become unable to be cut and will continue to be cut. It is cut into pieces.

(Effects of the invention) The present invention has a feeding mechanism in which spiral screws are wound in opposite directions from the center of the rotating shaft toward both ends, and this feeding mechanism is disposed inside the hopper. The tip of a swinging rod whose both ends of the rotating shaft are loosely fitted into arcuate grooves formed in a substantially vertical direction on the side wall of the housing, and whose base end is rotatably attached to the intermediate shaft, and one end of the rotating shaft of the feeding mechanism. Because the hopper is connected to the hopper, even if a large amount of cuttings are thrown into the hopper at once, the cuttings gradually become entwined with the screw of the 4') feeding mechanism, and as the winding diameter increases, the feeding mechanism rises. The cutting waste stored in the feeding mechanism is fed into the center of the hopper in small quantities, and is gradually cut by the rotating cutter located diagonally below the feeding mechanism, so that a large amount of cutting waste is delivered into the hopper at once. Even if the chips are thrown in, the chips can be continuously cut without being unable to be cut.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one embodiment of the present invention, and FIG. 2 is a plan view of an embodiment of the present invention.
A sectional view taken along the line X-X in the figure, FIG. 3 is a side view, and FIG. 4 is a
FIG. 1 is a cross-sectional view taken along the line X-X in FIG. 1, and FIG. 5 is a cross-sectional view taken along the Y-Y line in FIG. 3 in a state where the feeding mechanism is raised. (Explanation of symbols of main parts) 1...Housing,
2...Hopper, 8...Side wall of housing, 17...Rotary shaft of feeding mechanism, 18...
...Screw, 19...Circular groove, 21
...Swinging rod, 22...Intermediate shaft, F...
...Feeding mechanism.

Claims (1)

[Scope of utility model registration request] A rotary cutter 7 and a fixed cutter 27 are arranged at the bottom of the hopper 2 so that a part thereof faces the discharge port 5 of the hopper 2. 27, a helical screw 18.27 twists in opposite directions from the center of the rotating shaft 17 toward both ends. 1
The feeding mechanism F is arranged inside the hopper 2, and its rotating shaft 1 is
A swinging rod 21 has both ends of the rod 7 loosely fitted into arcuate grooves 19, 19' formed approximately vertically in the side walls 8, 8' of the housing 1, and a base end rotatably connected to the intermediate shaft 12. The tip part and one end of the rotating shaft 17 of the feeding mechanism F are connected, and the feeding mechanism F rotates the rotary cutter 7 and the fixed cutter 27 according to the winding diameter of the cutting chips wound around the screw 18 of the feeding mechanism F. 1. A cutting waste feeding device in a cutting waste crushing device, characterized in that the device is configured to be able to move up and down freely from above.