JPH0637850Y2 - Chip and dust recovery device for circular saw mobile cutting machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a chip dust collecting device for a circular saw moving cutter, and also has a safety cover on a table and a chip dust collecting process which have been conventionally used. Guide grooves are provided on both sides of the work clamp, and a plurality of divided scatter prevention plates with brushes are fitted into the grooves to create a gap corresponding to the thickness of the work material between the work retainer and the table top surface. This is an improvement in that the dust absorption is poor due to the pressure.

(Prior Art) A circular saw that protrudes and moves on the lower surface of a support table is provided, a safety cover and a work material retainer that also serves as a chip dust collector are arranged on the table, and a dust suction hose is connected to the work material retainer. The cutting machine is disclosed in Japanese Utility Model Publication No. Sho 57-60907. However, the work material retainer is placed over a length that approximately matches the range of movement of the circular saw, but the work material that is placed on the table at approximately the right angle to the work material retainer does not necessarily extend over the range of movement of the circular saw. Therefore, there is a disadvantage that a gap corresponding to the thickness of the processed material is formed between the lower surface of the processed material retainer and the upper surface of the table in the portion where the processed material is absent, so that the negative pressure suction by the dust suction hose becomes defective.

(Problems to be Solved by the Invention) The object of the present invention is to solve the above-mentioned drawback, that is, the problem of creating a gap between the lower surface of the work material presser and the upper surface of the table. is there.

(Means for Solving Problems) The present invention meets the above-mentioned object, and a circular saw that projects and moves on the lower surface of a supporting table is provided on the lower surface of the supporting table, and a safety cover that covers the circular saw is provided on the table. In a cutting machine in which a work material retainer that also serves as a chip dust collector is arranged, guide grooves are provided on both side surfaces of the work material retainer, and the guide groove is divided into a plurality of grooves so that each is free to move up and down. The present invention relates to a device for collecting chips and dust in a circular saw movable cutting machine, characterized in that a scatter prevention plate having an appropriate height is further provided with a brush provided on the bottom.

(Example) An example of the present invention will be described.

FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a plan view, FIG. 3 is an enlarged front view of FIG. 1A-A for explaining cutting, and FIG. 4 is an enlarged perspective view of a main part.

Reference numeral 1 is a support table, on which a slit 2 is provided,
A circular saw 3 is provided on the lower surface of the support table 1 so as to partially project from the slit 2 to the upper surface and move within the range of the slit 2. Since the moving structure of the circular saw is well known, its illustration is omitted. On the support table 1, a pair of lift guide columns 4 and 4 are projected at both ends of the slit 2 in the length direction, and a cylinder support plate 5 is passed between the upper ends of the guide columns. Reference numerals 6 and 6 denote sliding pipes fitted in the guide columns 4 and 4 so as to move up and down freely. Reference numeral 7 denotes a safety cover formed over the slit 2 and having grooves 8 closed at both ends from the lower surface. U-shaped work clamp 7
Then, both ends in the length direction are attached to the sliding pipes 6, 6, and the rod 10 projecting from the lower surface of the cylinder supporting plate 5 of the cylinder 9 mounted on the upper surface of the cylinder supporting plate 5 is attached to the work material pressing member 7. Fix on top.

As shown in FIG. 3, a dust suction pipe 11 is attached to the work material retainer 7, and bars 12 and 12 for forming guide grooves 13 and 13 are provided on the outer lower sides of both side surfaces.

The guide grooves 13, 13 on both sides are fitted with the anti-scattering plates 14 which have appropriate heights and which are divided into a plurality of pieces in the width direction parallel to the slit 2 and which can be freely moved up and down so that they are almost in contact with each other. A slightly rigid brush (15) is provided on the lower surface, and a descending stopper (16) corresponding to the bar (12) is provided on the upper end side surface. A vertical movement guide 17 is provided on each of the outer surfaces of the shatterproof plate 14 so as to project therefrom, and a guide groove 18 into which the guide 17 is slidably fitted in the bar 12
To form.

On the lower surface of the support table 1, there is provided a cup-shaped dust suction device 19 that moves together with the circular saw 3 in correspondence with the lower surface of the circular saw 3.

In this embodiment, the rod 10 of the cylinder 9 is contracted to hang the descending stopper on the bar 12 to lift a plurality of the scattering prevention plates 14, and then the work material a is supplied onto the support table 1, and then the rod 10 is removed. Stretching and pressing the work material a 7
Hold down. At this time, the scattering prevention plate 14 corresponding to the upper surface of the processed material a contacts the brush 15 on the processed material a,
The scattering prevention plate 14 having no processing material a on its lower surface automatically causes a difference in height at which the brush 15 is brought into contact with the support table 1, and the gap b
Does not occur, or even if it occurs as shown in FIG. 1, it is minimized.

(Operation and effect) In the present invention, a circular saw 3 is provided on the lower surface of the support table 1 so as to project and move a part above the table, and the work material retainer that covers the circular saw 3 and also collects the cutting dust on the table. In the cutting machine in which 7 is arranged, guide grooves 13 are provided on both side surfaces of the work material retainer 7, and the grooves are divided into a plurality of grooves so that each is free to move up and down, and a brush 15 is provided on the lower surface. An anti-scattering plate 14 of appropriate height provided with a descending stopper 16 is provided, and even if a work material having a cutting width narrower than the movable range of the movable circular saw 3 is placed on the support table 1, the anti-scattering plate 14 is provided.
Since it is divided into multiple parts, there will be almost no gap corresponding to the thickness of the processed material in the part where the circular saw moves across, or even if it occurs, it will be incomparable to the conventional one. Therefore, the chips and dust accumulated in the gap on the support table 1 can be minimized, and all or most of them can be collected in the air duct, and the scattering stopper plate 14 is provided with the descending stopper 16 so that the work material can be processed. It is possible to prevent the plate 14 from falling on the support table 1 and separating or spattering even if the presser foot 7 is lifted as necessary, and the scattering prevention plate 14 is provided with a vertical movement guide to swing. Therefore, even when a circular saw hits the processed material and cuts it, it is possible to prevent the mutual oscillation of the scattering prevention plates 14 from interfering with each other.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.
2 is a plan view, FIG. 3 is an enlarged front view of FIG. 1AA for explaining cutting, and FIG. 4 is an enlarged perspective view of a main part. 1 → Supporting table, 2 → Slit, 3 → Circular saw 4 → Elevating guide post, 5 → Cylinder support plate 6 → Sliding pipe 7 → Work material retainer that also serves as chip dust collection 8 → Groove, 11 → Dust suction pipe 13 → Guide groove, 14 → Scatter prevention plate 15 → Brush, 16 → Descending stopper 17 → Vertical movement guide, 18 → Guide groove

Claims (1)

[Scope of utility model registration request] 1. A cutting machine in which a circular saw that protrudes and moves on the lower surface of a support table is provided, and a safety cover for covering the circular saw and a work material retainer that also serves as chip dust recovery are arranged on the table. A guide groove is provided on both sides of the work material retainer, and each groove is divided into a plurality of grooves to allow free vertical movement, and a brush is provided on the lower surface, and a scattering stopper plate of appropriate height is provided with a descending stopper. A device for collecting chips and dust in a circular saw movable cutting machine characterized by being fitted.