JPH091435A - Cutting-off device provided with deburring tool - Google Patents

Abstract

PURPOSE: To avoid holding flaws on a product caused by rollers or the like and improve the removal of burrs while simplifying constitution. CONSTITUTION: A cutting-off device is provided with a band saw 2 formed on one side edge with a cutting-off edge 2a and a deburring tool 3 disposed on the opposite side edge to the cutting-off edge 3a and spaced therefrom at an interval. The disk-like deburring tool 3 is formed into a rotary blade 3a formed on the outer peripheral end face with an approximately V-shaped cutting-off surfaces S, S. The rotary blade 3a is energized downward by a spring 4 to be changed over between the condition of rotatably driving the rotary blade 3a and the condition of free rotation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device provided with a deburring tool, and more particularly, to simplifying the structure and avoiding pressing scratches by a roller or the like on the surface of a product obtained by cutting, In addition, the present invention relates to a technique for performing good deburring.

[0002]

2. Description of the Related Art Conventionally, there is provided a band saw 2 having a cutting edge formed on one side edge thereof, and a deburring tool 3 arranged at an edge side opposite to the cutting blade of the band saw 2 with a space therebetween. The cutting device, like Japanese Patent Publication No. 6-15123 shown in FIG. 3, has a rotary blade 3a spaced apart from the edge of the band saw 2 on the side opposite to the cutting blade.
Is provided, and pressing rollers R, R are provided on both sides of the rotary blade 3a.
Are provided coaxially. These pressing rollers R, R
Hold the object 1 to be cut such as the metal plate 1a, and rotate the blade 3
a enters the cutting groove C formed by the band saw 2, and cuts and removes the flash formed on the cutting edge of the object 1. In the figure, θ indicates the blade edge angle of the rotary blade 3a and is set to about 120 °.

[0003]

However, in such a structure, the pressing rollers R, R are arranged on both sides of the rotary blade 3a, and the structure becomes complicated and the pressing roller R is also formed. , R presses the object 1 to be cut, and thus, in order to press the object 1 to be cut by the pressing rollers R and R, the facets produced during cutting are pressed by the pressing rollers R and R to the object 1 to be cut. Since the surface is pressed, the surface of the product is scratched, and the object to be cut 1 is pressed by the pressing rollers R, R, the rotary blade 3a provided coaxially with the pressing rollers R, R can further descend. Not possible, rotary blade 3a
If the blade is worn, the deburring cannot be performed in a predetermined manner, and there is a problem that the rotary blade 3a must be replaced.

The present invention has been made in view of the above problems, and an object thereof is to simplify the structure, avoid scratching the product, and cause the rotary blade to be slightly worn. It is also an object of the present invention to provide a cutting device equipped with a deburring tool that can perform deburring sufficiently and can extend the replacement cycle of the rotary blade.

[0005]

According to a first aspect of the present invention, a band saw 2 having a cutting edge 2a formed on one side edge thereof and an edge side of the band saw 2 opposite to the cutting edge 2a are provided with a space therebetween. The deburring tool 3 is a disk-shaped device having a substantially V-shaped cutting surface S,
It is formed on the rotary blade 3a in which S is formed, and the rotary blade 3a is urged downward by a spring 4 so that the rotary blade 3a can be rotated and driven freely. It is what

According to a second aspect of the present invention, there is provided a suction means 5 for sucking the facets cut by the band saw 2, and a brush 6 for sweeping and removing the burrs deburred by the deburring device 3. It is what

[0007]

According to the present invention, the rotary blade 3a, which is spaced from the edge of the band saw 2 on the side opposite to the cutting blade 2a, is provided with the spring 4.
The upper edge portion of the groove C of the cut object 1 cut by the band saw 2 is elastically contacted against the urging force of the band saw 2 to absorb the variation in the thickness of the cut object 1 and the deburring is favorably performed. Yes,
While including the band saw 2 and the rotary blade 3a to simplify the configuration,
Good deburring can be performed. In particular, by omitting the pressing roller, facets and burrs generated at the time of cutting are not pressed against the surface of the object to be cut 1 and the product is not damaged. In addition, the rotary blade 3a can be freely rotated, and while the rotary blade 3a is elastically contacting the position where the deburring is completed, the cutting device can be returned to the cutting device. There is no need to lift it from above, the structure is simple, and the cutting work can be performed quickly.

In the second aspect, the facet can be removed by suction by the suction means 5, the cut flash can be removed by the brush 6 in the returning step, and the brush 6 becomes a wall to ensure the suction of the facet. Therefore, it is possible to prevent the work environment from being deteriorated by these facets and burrs.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In the cutting device A according to the present invention, for example, a core material 7 such as isocyanurate foam or glass fiber mixed isocyanurate foam is filled between a pair of metal plates 1a, 1a coated with a coating for rust prevention and abrasion resistance. The sandwich panel 8 is installed in a production line in which the sandwich panel 8 is foamed to be produced, and the sandwich panel 8 is cut during its transportation, and at the same time, the flash B generated by the cutting is removed or the produced sandwich is produced. The panel 8 is fixed and the cutting device A is run to perform cutting and deburring. It goes without saying that the cut object 1 may be a metal plate material other than the sandwich panel 8.

In the cutting device A, the base 12 can be moved up and down by an elevating means such as a cylinder 15, and
The guide rail, a rack gear formed on the guide rail, and a traveling drive means (not shown) such as a pinion gear on the side of the base 12 that meshes with the rack gear can freely reciprocate. The base 12 is provided with a band saw device having a band saw 2 and a deburring tool 3, a cutting blade 2a is formed at one side edge of the band saw 2, and a passing position is determined by guide rollers 9 and endless. It is driven in a shape. A deburring tool 3 is provided on the edge side of the band saw 2 opposite to the cutting blade 2a with a space therebetween.
Are arranged. The deburring tool 3 is a disc-shaped rotary blade 3a having cutting surfaces S, S formed in a substantially V shape on the outer peripheral end surface thereof.
Is formed. The rotary blade 3a is, for example, the air motor 1
It is driven to rotate at 3. That is, an electromagnetic valve is provided in the air pipe to the air motor 13, and air is supplied to the air motor 13 when necessary by controlling the opening / closing of this electromagnetic valve.
Air is blown to the fins of the impeller built in the air motor 13 so that the air motor 13 moves at high speed (2000 to 30).
(00 rpm) is rotated. In this way, the rotary blade 3a is driven and rotated in a fixed direction only when air is supplied, and when the air supply is cut off, the rotary blade 3a is set in a freely rotating state. An electric motor may be used instead of the air motor 13. According to the air motor 13,
It can be rotated at high speed easily, can be made smaller than an electric motor, and can be easily maintained without causing a short circuit due to saw dust.

Then, the base 12 is moved by a traveling means along a guide rail, for example, and the sandwich panel 8 is cut by the band saw 2, and the rotary blade 3 is formed in the groove C formed by the cutting.
The substantially V-shaped cut surfaces S, S of a are inserted to cut off the flash generated on the upper metal plate 1a. The rotary blade 3a is driven and rotated from bottom to top. An arm 10 is rotatably held around a shaft 11 on a base 12, a rotary blade 3a is rotatably supported on the tip of the arm 10, the air motor 13 is held on the arm 10, and the base 12 and the arm are supported. A spring 4 is interposed between the spring 10 and the spring 10 and is urged downward by the spring 4. The spring 4 is located directly above the support shaft 16 of the rotary blade 3a. The arm 10 may come into contact with a stopper (not shown) to prevent the arm 10 from descending more than a certain amount, or may be connected to the lower end of the spring 4 to prevent the arm 10 from descending more than a certain amount.

After the sandwich panel 8 is cut by the band saw 2, deburring is carried out by the rotary blade 3a, while the rotary blade 3a is elastically contacted by the spring 4 to the upper edges of the groove C facing each other. It is driven and rotated so that deburring can be performed. By the way, after the sandwich panel 8 is cut and deburred, the traveling means retreats in that posture, but at that time, the rotary blade 3a is in a freely rotating state, and the rotary blade 3a is flashed. It is designed to roll while making elastic contact with the picking point.

As described above, the deburring tool 3 is formed on the rotary blade 3a having a disk-like shape and the V-shaped cutting surfaces S, S formed on the outer peripheral end surface thereof. The rotary blade 3a is moved downward by the spring 4. The rotating blade 3a is urged to rotate the rotary blade 3a and can be switched between a free rotating state and a rotary blade 3a spaced apart from the edge of the band saw 2 on the side opposite to the cutting blade 2a. It is elastically contacted with the groove portion of the object 1 to be cut by the band saw 2 against the biasing force of and the deburring is favorably performed by the driving rotation of the rotary blade 3a. Then, by omitting the conventional pressing roller, the structure is simplified, and the pressing roller does not press the facets or burrs against the surface of the object 1 to be cut, and the product is not damaged. In addition, the rotary blade 3a can be freely rotated, and while the rotary blade 3a is elastically contacting the position where the deburring is completed, the cutting device can be returned to the cutting device. It is not necessary to raise the above, the structure is simple, and the cutting work can be performed quickly.

A brush 6 is provided in front of the band saw 2, so that the brush 6 which is the rear end in the returning step can sweep and remove the burrs deburred in the going step. is there. Also, in the vicinity of the band saw 2,
The suction means 5 is provided so that the facet cut by the band saw 2 can be sucked. in this case,
The brush 6 serves as a wall so that the suction means 5 can favorably perform suction.

By the way, the thickness of the band saw 2 is about 2 to 3 mm, and the blade edge angle θ of the rotary blade 3a is about 80 ° to about 100 °.
It is set to about 90 °, preferably about 90 °, and when the width of the groove C generated when cutting is about 2 to 3 mm, deburring of burrs on both sides of the groove C can be satisfactorily performed. I understood. That is, as shown in FIG. 3C, when the blade angle θ of the conventionally used rotary blade 3a is about 120 ° and the width of the groove C is 2 to 3 mm,
The rotary blade 3a wears prematurely, so that the metal plates 1a, 1
a is cut more than necessary, and the rotary blade 3a
If the blade edge angle θ is about 90 °, the burrs can be removed satisfactorily, and the life can be extended by avoiding wear as compared with the blade having 120 °.

FIG. 2 shows another embodiment, in which the spring 4 is arranged on the side opposite to the shaft 11 with respect to the spindle 16 of the rotary blade 3a so that the pressing force of the spring 4 is increased. It is a thing.

[0017]

According to the first aspect of the present invention, there is provided a band saw having a cutting blade formed on one side edge thereof, and a deburring device provided at an edge side opposite to the cutting blade of the band saw at a distance. A deburring device provided with a deburring tool, which is a disk-shaped rotary blade having a substantially V-shaped cutting surface on an outer peripheral end surface thereof. The rotary blade is urged downward by a spring, Since it can be switched between a state in which the blade is driven to rotate and a state in which the blade is freely rotated, the rotating blade with a space on the edge opposite to the cutting blade of the band saw resists the biasing force of the spring. By making elastic contact with the groove of the cut object and absorbing fluctuations in the thickness of the object satisfactorily, deburring is performed well by the drive rotation of the rotary blade. By simplifying the structure, pressing rollers can be used to attach facets and burrs to the surface of the workpiece. There is no such thing as feel more alert, may not be such as scratching the commodity. Moreover, the rotary blade can be freely rotated, and while the rotary blade is elastically contacting the location where the deburring has been completed, the cutting device can be returned to the cutting device. There is no advantage, the structure is simple, and the apparatus does not have to be raised in the returning step, and the cutting operation can be performed quickly.

In the second aspect, since the suction means for sucking the facet cut by the band saw and the brush for sweeping and removing the flash deburred by the deburring tool are provided, the facet suction means The removed flash can be removed with a brush in the returning process, and the brush serves as a wall to allow good suction of the facets by the suction means. There is an advantage that the product can be prevented from damaging the product by the flash and the work environment can be prevented from being deteriorated by the facet and the flash.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, in which (a) is a side sectional view, (b) is a partial front sectional view, and (c) is a partially enlarged front sectional view.

FIG. 2 is a side sectional view of another embodiment of the above.

FIG. 3 shows a conventional example, (a) is a partial front sectional view, (b)
Is a partial front sectional view, and (c) is a partially enlarged front sectional view.

[Explanation of symbols]

 1 Object to be cut 1a Metal plate 2 Band saw 3 Deburring tool 4 Spring 5 Suction means 6 Brush

Claims (2)

[Claims] 1. A band saw having a cutting edge formed on one side edge,
A deburring device provided with a deburring tool which is disposed at an edge side opposite to a cutting blade of a band saw with a gap, and the deburring tool is disc-shaped and is cut into a substantially V shape on an outer peripheral end surface thereof. A state in which the rotary blade is formed on a surface, the rotary blade is biased downward by a spring so as to be movable, and the rotary blade is rotationally driven;
A cutting device equipped with a deburring tool, characterized by being freely switchable to a freely rotating state. 2. The flash according to claim 1, further comprising suction means for sucking a facet cut by a band saw, and a brush for sweeping and removing the flash deburred by a deburring tool. Cutting device with a fixture.