JPH1034486A - Metal cutting chip shearing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal cutting chip shearing device capable of smoothly feeding into a casing even cutting chips getting intertwined. SOLUTION: A metal cutting chip shearing device is provided with a casing 1 and a chip pushing means 5. The casing 1 has a chip throwing port 13a provided with a cylindrical hopper 13b. The casing 1 contains a rotary shaft 2 with a spiral screw 21 and shearing blade 22 for shearing on the outer periphery of the shaft 2 and a blade fixed in the casing 1. The chip stuffing means 5 is provided with a chip stuffing rotary shaft 51, which is rotatably attached to the chip shearing rotary shaft 2 and a plate-like pressing members 52...52, which are projected on the outer periphery of the chip stuffing rotary shaft 51 in the hopper 13b. The metal cutting chips in the hopper 13b are pushed into the casing 1 from the cutting chip throwing port 13a by the rotation of the pressing member 52...52 accompanied by the rotation of the shearing rotary shaft 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a processing apparatus for shearing metal chips.

[0002]

2. Description of the Related Art Cutting chips generated by metal cutting are:
It is elongated and curled, bulky and inconvenient to store and handle. For this reason, the present applicant has developed a shearing processing apparatus for shearing the metal shavings as disclosed in
No. 65643. This shearing device
As shown in FIG. 12, a casing a and this casing a
And a cylindrical hopper b1 projecting upward from the chip input port b, a rotary shaft c for shear disposed in a casing a, and a rotary shaft for shearing. A screw d spirally formed on the outer periphery of the shaft c and a shearing section e for shearing the cutting chips are provided. When the chips are put into the hopper b1, the cutting chips enter the casing a from the input port b. The cutting waste entering the casing a is sequentially conveyed to the shearing processing unit e by the movement of the screw d accompanying the rotation of the rotation shaft c for shearing in the casing a,
In the shearing section e, the shearing is performed by a shearing blade e1 provided on the outer periphery of the screw d and a fixed blade (not shown) fixed to the casing a. In this way, it is an apparatus for turning cutting chips into strips.

However, metal cuttings tend to be curled and clumpy. For this reason, when the cutting chips put into the hopper b1 enter the casing a from the cutting chip inlet b, they slide on the outer periphery of the screw d to be clumped and float above the cutting chip inlet b, so that the inside of the casing a In many cases, and it is often difficult to carry smoothly with the screw d. In this case, it is conceivable that a protrusion is provided on the screw d and the lump of cutting chips is drawn into the casing a by hooking the cutting chips raised by the protrusion when the screw d rotates. However, it is relatively effective when the amount of lumped chips is small, but when the lumps are large, a part of the lower part of the lumps is It is difficult to pull in the entire body just by being pulled in, and as a result, it is not possible to pull it into the casing a reliably.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above circumstances, and is directed to a metal cutting chip shearing apparatus capable of smoothly feeding into a casing even if cutting chips are in a lump. The primary purpose is to provide.

A second object of the present invention is to provide a metal cutting chip shearing apparatus which can smoothly feed into a casing even if the cutting chips are in a lump and can be manufactured at low cost. .

A third object of the present invention is to provide a metal cutting chip shearing apparatus capable of constantly and smoothly shearing cutting chips by feeding cutting chips into the casing in appropriate amounts.
The purpose of.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by providing a metal chip shearing apparatus having the following features. The metal cutting chip shearing apparatus according to the first aspect of the present invention includes a casing 1, shearing means 8 and 22 provided in the casing 1, a shearing rotary shaft 2 rotatably arranged in the casing 1, It has a screw 21 for conveyance formed on the outer periphery of the rotary shaft 2 for shearing, a chip input port 13 a formed by opening a part of the peripheral part of the casing 1, and a chip pushing means 5. The cutting waste pushing means 5 feeds the cutting waste into the cutting waste inlet 1.
It is pushed into the casing 1 from 3a.

[0008] The second invention of the present application is directed to a hopper according to the first invention of the present application, wherein the chip input port 13a is provided with a cylindrical hopper 13b extending outward from the casing 1 from the chip input port 13a. The cutting chips introduced into the casing 13b can be inserted into the casing 1 from the cutting chips inlet 13a. The cutting chip pushing means 5 includes a pressing member 52 capable of pressing the cutting chips in the hopper 13b. The pressing member 52 is rotatably arranged in the hopper 13b, so that the hopper 13b
The cutting chips put into the inside are pressed in the casing 1 from the cutting chips inlet 13 a and pushed into the casing 1.

The third invention of the present application provides a casing 1, shearing means 8 and 22 provided in the casing 1, a shearing rotary shaft 2 rotatably arranged in the casing 1,
It has a screw 21 for conveyance formed on the outer periphery of the rotary shaft 2 for shearing, a chip input port 13 a formed by opening a part of the peripheral part of the casing 1, and a chip pushing means 5. The shearing means 8, 22 includes the shear blade 22 provided on the rotary shaft 2 for shearing and the fixed blade 8 fixed to the outer diameter of the shear blade 22 in the casing 1, thereby rotating the rotary shaft 2 for shear. The cutting blade is sheared by the shear blade 22 and the fixed blade 8 in accordance with
The chip input port 13a includes a cylindrical hopper 13b extending from the chip input port 13a to the outside of the casing 1 so that the chip input into the hopper 13b allows the chip 1 to enter the casing 1 from the chip input port 13a. It can be inserted into. The cutting waste pushing means 5 includes a pushing rotary shaft 51 rotatably arranged in the hopper 13b, and a pressing member 52 capable of pushing the cutting waste in the hopper 13b. The pushing rotary shaft 51 is connected to the shearing rotary shaft 2 so as to be able to transmit rotation. The pressing member 52 protrudes radially outward from the outer periphery of the pushing rotary shaft 51. The pressing member 52 is configured to be rotatable together with the pressing rotary shaft 51, so that the cutting chips input into the hopper 13 b with the rotation of the pressing member 52 can be removed from the cutting chip inlet 13 a through the casing 1. It is pressed inward and pushed into the casing 1.

In a fourth aspect of the present invention, the rotational speed of the pushing rotary shaft 51 according to the third aspect of the present invention is set to
The rotation speed is lower than the rotation speed.

In the first invention of the present application, since the cutting chip pushing means 5 for pushing the cutting chips into the casing 1 from the cutting chip inlet 13a is provided, the cutting chips enter the casing 1 from the cutting chip inlet 13a. When the screw 21
Even if it slides on the outer periphery of the cutting piece and floats above the chip entry 13a, the chip pushing means 5 can forcibly push the chip into the casing 1.

In the second invention of the present application, the hopper 13
The pressing member 52 provided in the hopper 13b can push the cutting chips into the hopper 13b from the cutting chip inlet 13a into the casing 1 only by putting the cutting chips into the hopper 13b.

In the third invention of the present application, the hopper 13
a rotary shaft for pushing 51 rotatably arranged in b.
A pressing member 52 projecting radially outward from the outer periphery of the pushing rotary shaft 51; rotating the pressing member 52 by rotation of the pushing rotary shaft 51; Cutting waste inlet 1
It shall be pushed into casing 1 from 3a. In this way, a simple structure can be achieved, and the system can be made economical. Further, since the pushing rotary shaft 51 is connected to the shearing rotary shaft 2 so as to be able to transmit rotation, the pushing rotary shaft 51 can be rotated by the rotation of the shearing rotary shaft 2, and the shearing rotary shaft 2 can be rotated. The driving means can be used, and in that respect, it can be made economical. In addition, since the pushing rotary shaft 51 is connected to the shearing rotary shaft 2 so as to be able to transmit rotation, the rotation speed ratio of the pressing member 52 to the rotation speed of the shearing rotary shaft 2 can be kept constant, and the rotation of the shearing rotary shaft 2 can be maintained. If the rotation speed is changed, the rotation speed of the pressing member 52 changes accordingly, and the pressing member 52 is always maintained at a rotation speed suitable for the shearing rotation shaft 2 irrespective of the rotation speed of the shearing rotation shaft 2. Can be.
Thereby, for example, when a large amount of cutting chips having a shear processing ability or more by the fixed blade 8 and the shearing blade 22 is fed, the shearing by both is performed by the rotational force of the rotary shaft 2 for shearing. There is a possibility that the shearing rotation shaft 2 stops due to overloading and the shearing process cannot be performed. However, the rotation speed of the pressing members 52... 52 is automatically adjusted in accordance with the rotation speed of the screw 21. Accordingly, it is possible to prevent a large amount of cuttings from being transported to the shearing region 12.

In the fourth aspect of the present invention, the rotation speed of the pressing rotary shaft 51 is made lower than the rotation speed of the shearing rotary shaft 2 so that the rotation speed of the pressing member 52 is reduced. To make it slower,
It is possible to prevent the pressing member 52 from pushing a large amount of cutting chips into the casing 1 by the pressing member 52 beyond the shearing ability of the fixed blade 8 and the shear blade 22.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a metal chip shearing apparatus according to an embodiment of the present invention; FIG. 1 is a plan view of an embodiment of a metal cutting chip shearing device of the present invention, and FIG. 2 is an explanatory diagram showing an internal structure of a casing.

As shown in FIGS. 1 and 2, a metal cutting chip shearing apparatus according to this embodiment comprises a casing 1, a shearing rotary shaft 2 rotatably arranged in the casing 1,
A fixed blade 8 fixed in the casing 1 and cutting chip pushing means 5 are provided.

The casing 1 in the present embodiment is divided into a transport area 11 on the left side and a shear area 12 on the right side. In the upper part of the transport area 11, a cutting waste inlet 13 formed by opening the casing 1 is provided.
a is provided. Also, the cutting waste input port 13a is
A cylindrical hopper 1 attached above the inlet 13a
3b.

Further, the shearing region 12 of the casing 1 is formed in a cylindrical shape, and has fixed blades 8, 8 therein as shown in FIG. These fixed blades 8 are attached to the front side and the rear side of the casing 1 so as to protrude radially inward. The fixed blade 8 is attached to the upper half 1 of the casing 1 in this device.
5 can be detached from the casing 1 body.
Although the base end of the fixed blade 8 is sandwiched between 5, 1 and fixed with bolts and nuts 16 so that the fixed blades 8 and 8 can be exchanged, they may be fixed by welding. Can be changed as appropriate.

Further, in the lower part of the casing 1, there is provided a chip discharge port 10 which is opened from the conveying area 11 to the shearing area 12, as shown in FIG.

The rotary shaft 2 for shearing penetrates the center of both end faces 17 and 18 of the casing 1 as shown in FIGS. It is located all over the area. Further, on the outer periphery of a portion of the shearing rotary shaft 2 which is arranged in the transport region 11, as shown in FIG. 4, three shearing blades 22 are provided in the circumferential direction. The shearing blades 22... 22 shear the cutting chips with the fixed blades 8, 8.
The cutting chips are sheared by meshing.

The left and right ends of the shear rotary shaft 2 are further extended, and the extended right end is attached to the drive shaft of the reduction motor 3 so that the shear rotary shaft 2 rotates. Have been made to gain. The deceleration motor 3 is disposed on the right side of the casing 1, and both the first and third motors 1 and 3 are fixed on a substrate 4. On the other hand, a pulley 2a for a shear shaft is attached to the left end portion of the extended rotary shaft 2 for a shear, and the rotary shaft 2 for a shear and a chip pushing means 5 described later are attached via the pulley 2a for a shear shaft. The push-in rotary shaft 51 can be connected to be capable of transmitting rotation.

The screw 21 is for conveying cutting chips, and is formed in a helical shape on the outer periphery on the left side of the rotary shaft 2 for shearing as shown in FIGS. With the forward rotation of the shaft 2 (X direction shown), the casing 1
The cutting chips in the inside can be transported from the left side to the right side.

The cutting waste pushing means 5 includes a hopper 13b
The cutting chips fed into the casing 1 are fed into the casing 1 through the cutting chips inlet 13a, and are disposed in the hopper 13b. The cutting waste pushing means 5 in the present embodiment includes a pushing rotary shaft 51 and a pushing rotary shaft 51.
52, and three plate-like pressing members 52...

The rotary shaft 51 for pushing is provided in the hopper 13b.
Is rotatably hung on the right and left side walls of the hopper 13b, so that the upper side of the rotary shaft 2 for shearing in the hopper 13b,
It is arranged along the axial direction of the rotary shaft 2 for shearing. The rotating shaft 51 for pushing is transmitted from the rotating shaft 2 for shearing, and rotates in the same direction as the rotating shaft 2 for shearing by the rotating force of the rotating shaft 2 for shearing. More specifically, the left end side of the push-in rotary shaft 51 penetrates through the left side wall of the hopper 13b and is taken out of the hopper 13b. As shown in FIG. 5, the push-in shaft pulley 5a is provided at the left end thereof. And
The belt 6 is wound around the pushing shaft pulley 5 a and the shearing rotating shaft pulley 2 a of the shearing rotating shaft 2, so that both are connected to each other. Rotation is transmitted from the rotary shaft 2 for shearing, and the rotary shaft 2 rotates in the same direction as the rotary shaft 2 for shearing. The rotation ratio of the push-in rotary shaft 51 and the shearing rotary shaft 2 can be easily adjusted by providing a difference in diameter between the push-in shaft pulley 5a and the shear-axis pulley 2a. Then, the pulley 5a for the pushing shaft
Is about 4 to 5 times the diameter of the pulley 2a for the shear shaft, and the rotational speed of the rotary shaft 51 for pushing is about 1/4 to 1/5 of the rotational speed of the rotary shaft 2 for shear. I am trying to be. The connection between the rotary shaft 2 for shearing and the rotary shaft 51 for pushing is performed by pulleys 2 and 52a and belt 6
The connection is not limited to the one described above, but may be any connection capable of transmitting rotation. For example, the connection may be performed by a gear or may be changed as appropriate.

The pressing members 52... 52 push the cutting chips in the hopper 13 b into the casing 1 by pressing the chips into the casing 1 from the cutting chip inlet 13 a, and are shown in FIGS. 1 and 2. As described above, the push-in rotary shaft 51 is continuously arranged from the left end to the right end so as to extend along the axial direction of the push-in rotary shaft 51 so as to extend from the left end to the right end in the hopper 13b. Coordinated to a range. Also, as shown in FIG. 3, each is sequentially shifted by 120 ° in the circumferential direction from the pressing member 52 on the left end side to the pressing member 52 on the right end side, so that they are arranged side by side at equal intervals in the circumferential direction. I have. 52 form side surfaces of the pressing members 52... 52a, and the pressing surfaces 52a... 52a can press cutting chips in the hopper 13b downward from above with the rotation of the rotary shaft 51 for pushing. It has been made like that. In addition, this pressing member 52 ...
52 is not limited to this embodiment and can be changed as appropriate. The embodiment is the first embodiment, and other embodiments will be described later.

Next, the operation of this device will be described.
The rotation shaft 2 for shearing starts rotating with the start of the speed reduction motor 3, and the screw 21 starts to start. In addition, the rotating shaft 51 for pushing is rotated with the rotation of the rotating shaft 2 for shearing,
At the same time, the pressing member 52 rotates in the hopper 13b.

Then, from this state, metal chips are thrown into the hopper 13b. In the case of metal shavings input,
Since it is curled, it tends to be clumpy, and the screw 2
With the rotation of 1, the outer circumference of the screw 21 is slid and clumped to float upward, but each of the pressing members 52.
The pressing surfaces 52a... 52a of 52 press the lump-shaped cutting chips that are about to rise with the rotation from the upper side to the lower side of the cutting chip inlet 13a. Thereby, the massive cutting chips in the hopper 13b can be efficiently and smoothly pushed into the casing 1 from the cutting chip inlet 13a.

The cutting chips pushed into the casing 1 are:
It is conveyed by the screw 21 to the shearing area 12 on the right side of the casing 1, and is sheared in the shearing area 12 by the fixed blade 8 and the shearing blade 22 into fine strips. Also, at this time, a large amount of cutting chips having a shearing ability exceeding the shearing ability of the fixed blade 8 and the shearing blade 22 is generated by the screw 21 in the shearing region 1.
When the shearing rotary shaft 2 is fed into the shearing rotary shaft 2, the shearing is performed by the rotational force of the rotary shaft 2 for shearing.
May stop rotating. Therefore, it is necessary to adjust the transport amount of the screw 21 to the shearing region 12. For example, if the rotation speed of the pressing members 52. Before the chips sent to the screw 21 are conveyed to the screw 21, the next chips are further sent to the screw 21. As a result, a large amount of chips is conveyed to the shearing region 12 by the screw 21 at all times. The rotation of the shearing rotary shaft 2 is stopped without being able to perform the processing, and the shearing work is rather deteriorated. However, in the present embodiment, the rotation speed of the pressing rotary shaft 51 is set to about 程度 to ５ of the rotation speed of the shearing rotary shaft 2 so that the pressing member 5 is rotated.
2 and 52, the amount of pushing into the casing 1 can be suppressed, and the shearing rotary shaft 2 can be conveyed to the shearing region 12 by an amount that does not overload. Accordingly, it is possible to prevent the rotation of the shearing rotary shaft 2 from being stopped due to an overload applied to the shearing rotary shaft 2 and not being able to perform a shearing process, and it is possible to constantly perform smooth shearing. Then, the cutting chips that have been finely sheared into strips are discharged from the cutting chip discharge port 10.

If the shearing rotary shaft 2 is overloaded by a large amount of cutting chips having a shearing ability or more and the shearing process cannot be performed, the rotation of the shearing rotary shaft 2 stops. Then, the rotating shaft 2 for shearing is reversed.
As a result, the pressing members 52... 52 also rotate in the reverse direction, and when a large amount of chips conveyed by the screw 21 is sent from the right side to the left side and reaches the chip input port 13 a, the pressing members 52. The cutting chips in the inside can be pushed upward from below, and can be easily taken out of the casing 1, and the overload state of the rotary shaft 2 for shearing due to a large amount of cutting chips can be eliminated. Therefore, the pressing members 52...
Can also function as release means when overload is applied to the motor.

Next, the pressing member 5 of the pressing means 5
Another embodiment 2 will be described with reference to FIGS. FIG. 6 shows a pressing member according to a second embodiment. Pressing members 52, 52 of the second embodiment
Are formed on both sides of the pushing rotary shaft 51 on the front side and the rear side in the drawing. Each pressing member 52 has a pressing surface 52 capable of pressing cutting chips to one side surface.
A plate-shaped pressing piece 53 having a is provided. The pressing piece 53 is composed of three supporting pieces 54.
Is fixed to the rotary shaft 51 for pushing. Specifically, on the base end side of the support pieces 54... 54, shaft mounting portions 54 a detachably mounted on the rotary shaft 51 for pushing,
54a, and the shaft mounting portions 54a, 54a are attached to the push-in rotary shaft 51, so that the support pieces 54... 54 are fixed in a state of being juxtaposed to the push-in rotary shaft 51 in the axial direction. . And the pressing piece 53,
By being fixed to the tips of the support pieces 54... 54, the pressing surface 52 a of the pressing piece 53 is positioned at a predetermined distance in the radial direction of the pushing rotary shaft 51 along the axial direction of the pushing rotary shaft 51. Fixed. The pressing pieces 53, 53 formed in this way are pushed in by the rotatable mounting shaft 51 being rotatably attached to the left and right side walls of the hopper 13b in the same manner as in the previous embodiment, and being rotated. When the pressing pieces 53 are rotated, the pressing surface 52a pushes the cutting chips in the hopper 13b into the casing 1 from the cutting chip inlet 13a. The number of the pressing members 52 is not particularly limited, and may be one, three or more, and may be changed as appropriate.

FIGS. 7A and 7B show a third example of the pressing member.
This is according to the embodiment. As in the second embodiment, the pressing members 52, 52 of the third embodiment are composed of two protrudingly provided on both sides of the pushing rotary shaft 51 on the front side and the rear side in the drawing. However, each pressing member 52 in the third embodiment is formed of one wire. Specifically, each pressing member 52 is formed by bending a single wire into a substantially rectangular shape and fixing both ends thereof to the outer periphery of the pressing rotary shaft 51, so that the pressing member 52 extends radially outward of the pressing rotary shaft 51. It is projected in a triangular shape having a top. Then, the outer peripheral surface of each pressing member 52 forms a pressing surface 52a, and the pressing surface 52a pushes the cutting chips in the hopper 13b into the casing 1 from the cutting chip inlet 13a with the rotation of the pressing rotary shaft 51. In this case, the number of the pressing members 52 may be one or three or more. Also, the shape is not limited to a triangular shape, and may be appropriately changed, for example, by forming an arc shape.

FIGS. 8A and 8B show a fourth example of the pressing member.
This is according to the embodiment. The pressing member 52 of the fourth embodiment is made of a long wire, and is concentric with the pushing rotary shaft 51 on the outer periphery of the pushing rotary shaft 51 along the axial direction of the pushing rotary shaft 51. It is helically arranged with a predetermined diameter, and is supported by a plurality of support rods 55.
The entire outer peripheral surface of the pressing member 52 forms a pressing surface 52a, and the pressing surface 52a
Pushes the cutting chips in the hopper 13b into the casing 1 from the cutting chip inlet 13a.

FIG. 9 shows a pressing member according to a fifth embodiment. Pressing member 52 of the fifth embodiment
Are plate-shaped pressing pieces 60, 60 and spiral blades 61a, 61b.
It is composed of The spiral wings 61a and 61b are formed on the outer periphery of the push-in rotary shaft 51 so as to be left-handed along the axial direction, and the left spiral wing 61a on the front side in the figure and the left spiral wing 61a.
A right-hand spiral wing 61a on the rear end side is formed in a right-handed winding along the axial direction on the outer periphery of the rotary shaft 51 for pushing in from the rear end portion on the rear end side. Each pressing piece 60, 60 is provided with the left spiral blade 6
1a and the front end of the right spiral blade 61a are fixed so as to be bridged between the spiral blades 61a and 61b, respectively. Further, one side surface of each pressing piece 60, 60 is extended along the axial direction of the rotary shaft 51 for pressing, and forms pressing surfaces 52a, 52a, respectively. Then, with the rotation of the pushing rotary shaft 51 (rotation in the X direction shown in the figure), the left spiral blade 61a conveys the cutting chips in the hopper 13b from the near side to the rear side pressing piece 60, and the pressing piece. 60
And presses downwards from above, so that the cutting waste inlet 13a
And into the casing 1. On the other hand, with the rotation of the pushing rotary shaft 51 (rotation in the X direction shown in the figure), the right spiral blade 61b conveys the cutting chips in the hopper 13b from the rear side of the figure to the pressing piece 60 on the front end side. Pressing from the upper side to the lower side by means of 60 allows the cutting waste to be pushed into the casing 1 from the cutting waste inlet 13a.

In this embodiment, the rotary shaft 5 for pushing is used.
The rotation speed of 1 is set to about 1/4 to 1/5 of the rotation speed of the rotation shaft 2 for shearing. The rotation speed of the push-in rotary shaft 51 may be
What is necessary is just to set suitably within the range which becomes slow with respect to the rotation speed of the rotation shaft 2 for shearing, and can change suitably.

In this embodiment, the inside of the casing 1 is
It is divided into a left-side transport area 11 and a right-side shear area 12. In the shear area 12, fixed blades 8, 8 fixed to the casing 1 and lateral sides of the screw 21 in the rotary shaft 2 for shearing. Although the shearing is performed by the provided shearing blade 22, the present invention is not limited to this embodiment. For example, as shown in FIG. 10, the second fixed blade 8 a (in FIG. Is fixed to the inner wall surface of the casing 1, and second shear blades 22 a, 22 a are provided at the outer peripheral tip of the screw 21, and
The cutting chips in the inside are transported to the shearing region 12 while being sheared by the second shearing blades 22a, 22a and the second fixed blade 8a with the rotation of the screw 21, and the casing formed in this manner. 1 is provided with a hopper 13b at the cutting waste input port 13a and the pressing member 5 described above.
2 ... 52 may be provided. Further, as shown in FIG. 11, the fixed blade 8 is fixed over the entire area of the long casing 1 without dividing the inside of the casing 1 into the transport area 11 and the shearing area 12, and the outer peripheral end portion is fixed. A screw 21 having a plurality of shearing blades 22... 22 is arranged over the entire area of the casing 1, and the shearing blades 22. A hopper may be provided at the cutting waste inlet 13a in the formed casing 1 to provide the above-described pressing members 52... 52, and may be changed as appropriate.

On the other hand, in this embodiment, as the shearing means, the fixed blade 8 fixed to the casing 1 and the shear blades 22... 22 provided on the rotary shaft 2 for shearing together with the rotation of the rotary shaft 2 for shearing. Although shearing is performed, the present invention is not limited to this mode, and other shearing means may be adopted and can be changed as appropriate.

In this embodiment, the cutting waste inlet 13a
Is provided on the upper side of the casing 1, but may be formed on the front or rear side surface of the casing 1, for example, and may be appropriately changed.

Further, in this embodiment, the rotary shaft 2 for shearing and the rotary shaft 51 for pushing are connected to each other and rotated by one driving means. However, the present invention is not limited to the configuration in which both are connected. A separate motor for driving the rotation shaft 2 for shearing may be provided separately to rotate the rotation shaft 2 for shearing and the rotation shaft 51 for pushing separately and independently.
It can be changed as appropriate.

[0039]

As described above, according to the first invention of the present application, when cutting chips enter the casing 1 through the cutting chip inlet 13a, they slide around the outer periphery of the screw 21 to form a lump and become a lump.
Chip pushing means 5
Can be forcibly pushed into the casing 1 and the cutting chips can be continuously sheared.

In the second invention of the present application, the hopper 13
b, the pressing member 52 provided in the hopper 13b can push the chip into the casing 1 from the chip input port 13a into the hopper 13b. Can be sheared.

According to the third invention of the present application, the cutting chips in the hopper 13b are removed by the rotation of the pressing member 52.
Since it is pushed into the casing 1 from above, a simple structure can be achieved, and it can be economical. Further, since the pushing rotary shaft 51 is connected to the shearing rotary shaft 2 so as to be able to transmit rotation, the pushing rotary shaft 51 can be rotated by the rotation of the shearing rotary shaft 2, and the shearing rotary shaft 2 can be rotated. The driving means can be used, and in that respect, it can be made economical. In addition, the rotation speed ratio of the pressing member 52 to the rotation speed of the shearing rotation shaft 2 can be kept constant, and the rotation of the pressing member 52 always conforms to the shearing rotation shaft 2 regardless of the rotation speed of the shearing rotation shaft 2. Speed can be maintained. Therefore, it is possible to prevent a large amount of cutting chips from being conveyed to the shearing region 12 by the screw 21, and it is possible to smoothly shear the cutting chips at all times.

According to the fourth aspect of the present invention, since the rotation speed of the pressing member 52 is set to be lower than the rotation speed of the shearing rotary shaft 2, a large amount of cutting is performed by the fixed blade 8 and the shear blade 22 so as to exceed the shearing ability. It is possible to prevent the debris from being pushed into the casing 1 by the pressing member 52, and it is possible to constantly smoothly cut the debris.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of a metal cutting chip shearing apparatus according to the present invention.

FIG. 2 is an explanatory diagram showing an internal structure of a casing.

FIG. 3 is a cross-sectional view of a main part along a line III-III in FIG. 1;

FIG. 4 is a cross-sectional view of a main part along line IV-IV in FIG. 1;

FIG. 5 is an explanatory diagram showing a connecting portion between a rotating shaft for shearing and a rotating shaft for pushing.

FIG. 6 is a perspective view of a main part of a second embodiment of a pressing member.

7A is a side view of a pressing member according to a third embodiment, and FIG. 7B is a sectional explanatory view of FIG. 7A.

8A is a side view of a pressing member according to a fourth embodiment, and FIG. 8B is a cross-sectional explanatory view of FIG.

FIG. 9 is a perspective view of a main part of a fifth embodiment of a pressing member.

FIG. 10 is an explanatory view of an embodiment in which a second shear blade and a second fixed blade are provided.

FIG. 11 is an explanatory view of another embodiment of the shearing means.

FIG. 12 is an explanatory view showing the internal structure of a conventional metal cutting chip shearing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Rotating shaft for shearing 3 Reduction motor 5 Cutting chip pushing means 8 Fixed blade 10 Cutting chip discharge port 13a Cutting chip input port 13b Hopper 21 Screw 51 Pushing rotation shaft 52 Pressing member

Claims (4)

[Claims] A casing (1), shearing means (8) (22) provided in the casing (1), and a rotating shaft (2) rotatably arranged in the casing (1), A transfer screw (21) formed on the outer periphery of the rotating shaft (2) and a casing (1)
A chip input port (13a) formed by opening a part of the periphery of the chip, and a chip input means (5), and the chip input means (5) is provided with a chip input port (5). 13
a) a metal cutting chip shearing device which is pushed into the casing (1) inward from a). 2. The cutting waste inlet (13a) is provided with a cutting waste inlet.
By providing a cylindrical hopper (13b) that extends from (13a) to the outside of the casing (1), the cutting chips input into the hopper (13b) can be removed from the cutting chip inlet (13a) through the casing (1a). The cutting chip pushing means (5) includes a pressing member (52) capable of pressing cutting chips in the hopper (13b), and the pressing member (52)
Are rotatably arranged in the hopper (13b), so that the cutting chips introduced into the hopper (13b) with the rotation of the pressing member (52) are removed from the casing through the cutting chip inlet (13a).
(1) The metal cutting chip shearing device according to claim 1, wherein the metal cutting chip shearing device is pressed inward and pushed into the casing (1). 3. A casing (1), shearing means (8) (22) provided in the casing (1), and a shearing rotary shaft (2) rotatably arranged in the casing (1). And a conveying screw (21) formed on the outer circumference of the shearing rotary shaft (2).
A chip input port (13a) formed by opening a part of the periphery of the casing (1);
(5), wherein the shearing means (8) and (22) are provided with a shearing blade (22) provided on the rotary shaft for shearing (2) and a shearing blade (2) in the casing (1).
With the fixed blade (8) fixed to the outside of the diameter of (2), the cutting blade is sheared by the shear blade (22) and the fixed blade (8) with the rotation of the rotation shaft (2) for shearing. The chip input port (13a) has a cylindrical hopper (13b) extending from the chip input port (13a) to the outside of the casing (1). The inserted cutting chips can be inserted into the casing (1) from the cutting chip inlet (13a), and the cutting chip pushing means (5) is rotatably arranged in the hopper (13b). Shaft (51) and hopper (13
b) a pressing member (52) capable of pressing the cutting chips therein, wherein the pressing rotary shaft (51) is connected to the shearing rotary shaft (2) so as to be able to transmit rotation, and the pressing member (52) is The pressing member (52) is provided so as to protrude radially outward from the outer periphery of the pressing rotary shaft (51), and is configured to be able to rotate together with the pressing rotary shaft (51). The cutting chips introduced into the hopper (13b) with the rotation are pressed into the casing (1) from the cutting chips inlet (13a) and pushed into the casing (1). Metal cutting waste shearing equipment. 4. A metal cutting chip shearing apparatus according to claim 3, wherein the rotating speed of the rotating shaft for pushing in is set to be lower than the rotating speed of the rotating shaft for shearing. .