JPH03247408A - Device for removing chip for running circular saw - Google Patents

Abstract

PURPOSE:To prevent chips from scattering, preventing thereby the environment from being harmed and preventing a workpiece from being damaged by providing a running groove for a circular saw in the longitudinal direction of a press plate and a cavity communicating with said groove, and connecting a vacuum means provided with a suction port which is opposed to the surface of a placing ruler board to the lower end of said cavity. CONSTITUTION:When a workpiece W is secured to a work table 3 by means of a press plate 40 and a circular saw 26 is caused to run, with the saw protruding from a slit 6 which allows the saw to run therethrough, the workpiece W is cut by the saw 26. Since the saw 26 cuts the workpiece W by up-cut method, with its ends of saw blade protruding from the surface of the workpiece and facing a running groove 47, most of chips are discharged into a collection cover 32 and discharged to a vacuum means from a suction port 32a, while part of the chips get into a cavity 48 of the plate 40; however, they fall onto a receiving surface 10a of an auxiliary ruler board 10 and are discharged to the vacuum means through a suction port 49. In this manner, the chips are not scattered by the turbulence of air flow caused by the saw during the cutting operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a chip removal device in a traveling circular saw for ensuring a healthy working environment.

(Prior Art) A vertical traveling circular saw called a panel saw is suitable for cutting long materials, and is widely used in the plastics industry, furniture industry, etc.

The structure of this machine and its usage will be explained with reference to FIG. 7.

The workpiece 1' supplied onto the horizontal ruler plates 1', 1' at the lower part of the table surface 5' is moved laterally on the horizontal ruler plates 1', 1', and one end is placed on the side abutting ruler 3'. The object is positioned by hitting the object. Then, at this position, the holding plate 4' is operated to press and fix it to the table surface 5', and then it is cut in the longitudinal direction by a circular saw 7' which protrudes from the saw running slit 6' and runs.

Here, the machining cycle of the workpiece 2' by the circular saw 7' is performed as shown in the explanatory diagram of FIG. That is, the circular saw 7' moves to the raised position at the end of the stroke while recessed within the table surface 5', protrudes above the table surface while rotating at this position, and moves downward in the protruded state to cut the workpiece 2'. The cutting process is performed, and when it reaches the lowered position at the end of the stroke, the process is completed, and the machine sinks into the table surface and stops rotating.

(Problem to be Solved by the Invention) In this type of processing machine, measures are taken to prevent scattering of chips generated during processing, and generally, the circular saw 7'
A dust collecting hood 8' is provided to surround the dust collecting hood 8', and a vacuum device (not shown) is connected to a discharge port 9' of the dust collecting hood 8' to forcibly discharge the chips.

On the other hand, the above-mentioned holding plate 4' not only presses and fixes the workpiece 2', but also covers the front of the circular saw 7' to protect the safety of the worker.
Prevents chips from scattering in front of the table surface.

Cutting with a circular saw is performed by the so-called up-cut method, and the saw's cutting edge acts to discharge the debris generated during the cutting process into the dust collection hood 8' by its centrifugal force. Since the negative pressure of the vacuum means is applied inside, the chips can be removed very effectively. However, some of the scraping material that adheres to the cutting edge separates from the cutting groove 10' in the holding plate 4' and falls downward. This tendency becomes more pronounced as the material has a higher specific gravity and is softer, and the fallen chips remain on the upper surface of the slit cover 11' at the lower end.

When the circular saw 7' moves and passes there, the accumulated chips are blown up by the rotating airflow and scattered forward and laterally from the gap 12' between the slit cover 11' and the holding plate 4'. The scattering of the chips disturbs the working environment, and also causes problems such as staining the horizontal ruler plate 1', which serves as a transfer path for the workpiece 2', and damaging the workpiece.

The present invention aims to provide a chip removal device that can solve the above-mentioned conventional problems.

(Means for Solving the Problems) In order to achieve the above object, a chip removal device for a traveling circular saw according to the present invention is configured as follows.

That is, the gist of this invention is to provide a running slit for a circular saw in the vertical direction of a table surface provided almost vertically.
A ruler plate for placing processed materials is provided at the bottom of the table surface, and
In a traveling circular saw machine, in which a presser plate for the workpiece corresponding to the running slit is arranged on the front side of the table surface so that it can approach and leave, the circular saw's running groove and , a hollow portion communicating therewith is provided, and a vacuum means having a suction port facing onto the placing ruler plate is connected to the lower end of the hollow portion.

(Function) During cutting, chips that enter the cavity through the running groove fall through the cavity. Then, at its lower end, it reaches the placement ruler plate, where it is expelled from the suction port to the vacuum means. Therefore, the rotating airflow of the saw does not cause the workpiece to be scattered around and harm the working environment, nor does it stain the placement ruler plate and damage the workpiece during positioning and transfer.

(Example) A chip removal device for a traveling circular saw according to the present invention,
A specific explanation will be given based on one example.

Fig. 1 is a front view of a panel saw equipped with this device. Fig. 2 is a side view of the panel saw. Frame 3 is a table board attached to the front frame 2 leaving a slight space in the vertical direction at the center of the front fixation. The pair of mounting rib members 5 provided on both sides are blade plates attached to the mounting rib members 4a and 4b, and the blade plate 5 is flush with the table plate 3 described above, and is connected to the blade plate 5. establish. The cutting edge plate 5 is made of a hard synthetic resin plate, light metal, or the like. Reference numeral 6 denotes a -striped saw running slit formed in the vertical direction of the cutting edge plate 5, and the cutting edge plate 5 is connected to the two cutting edge plates 5 on both sides by this saw running slit 6.
It is divided into a and 5b.

Reference numeral 7.7 denotes a mounting ruler plate having a cross section of "2", which is disposed on both sides of the lower part of the table plate 3, perpendicular to the saw running slit 6, and has a horizontal receiving surface 7a perpendicular to the table surface on the upper surface side. ...
9 is a fixing screw that fixes the placement ruler plate 7.7 to the table surface side. 9 is a fine adjustment screw that adjusts the horizontality of the above-mentioned placement ruler plate 7.7. 10 is a butt between the ruler plates 7.7 of both devices. In the section, an auxiliary placement ruler plate 10a is provided to cover the front surface of the saw running slit 6.
Horizontal receiving surface 11 provided on the top surface of the above-mentioned auxiliary placement ruler plate 1
Vacuum means installed horizontally at the lower end of 0 (not shown)
It is a suction port.

A guide rail 18 has an H-shaped cross section and is supported by the upper and lower horizontal ribs 1a of the rear frame 1 and is arranged on the back surface of the table board 3. This guide rail 18 is arranged parallel to the saw running slit 6 at an appropriate interval. Set up A movable base 19 is disposed on the guide rail 18 so as to be movable up and down, and the cutting unit B is mounted on this movable base 19.

5 and 6, 20 is a motor attached to the moving base 19 with the rotating shaft 21 horizontal; 22 is the rotating shaft 2;
An arm 24 rotatably provided on a bearing 23 concentric with 1 is a bearing sleeve 24 provided at the free end of the arm 22. 25 is a bearing sleeve 24.
The horizontal riveted shaft 26 is rotatably supported on the flange 27
The circular saw 28 attached to one end of the riveted shaft 25 through the arm 22 is a pneumatic cylinder connected to the arm 22, and when the piston rod is extended, the circular saw 26 is projected from the saw running slit 6 onto the table 3. When the piston rod is retracted, the circular saw 26 is retracted therefrom.

Reference numeral 29 denotes a passive pulley 30 fixed to the riveted shaft 25 and a rotating shaft 2.
A transmission belt 32 is a dust collection cover provided to surround the circular saw 26. 32a is a connection port for a vacuum means (not shown) provided on the dust collection cover 32. be.

E is a cutting feed means for moving the cutting unit B up and down;
3 and 34 are a pair of sprockets 35 attached to the upper and lower ends of the guide rail 18, respectively. A chain 7 is endlessly stretched over the sprockets 33 and 34, and one end of this chain 735 is tied to the movable base 19. . 3
6 is a forward/reverse drive motor linked to the lower sprocket 34 via an appropriate transmission means. This forward/reverse drive motor 36 drives the checker 735 to move upward or downward, and transports the cutting unit B in the desired cutting feed direction. .

F indicates a holding means for press-fixing the workpiece W to the table surface, and 37 is a support frame constructed on the front side so as to correspond to and straddle the saw running slit 6 of the cutting edge plate 5;
This support frame 37 has its lower end connected to the aforementioned auxiliary placement ruler plate 1.
0 to the table plate 3, and the upper end thereof is fixed to the table plate 3 via a mounting portion 39. The support frame 37 described above has an H-shaped cross section in plan view, as shown in FIG.

Reference numeral 40 denotes a presser plate having a rectangular outline that is movably provided on the support frame 37 by a pair of upper and lower link arms 41.41.The link arms 41.41 are the side plates 37a of the support frame 37.
, 3A, and a presser plate 40 is attached to one free end.
It is pivoted. 42 is a cushion pad attached to the contact surface with the processed material W. 43 is a connecting rod connecting the other free ends of both link arms 41 and 41. 44 is one link arm 4.
A pneumatic cylinder 45 is a mounting bracket for the pneumatic cylinder 44. The pneumatic cylinder 44 moves the presser plate 40 toward the table surface when the piston rod 46 is retracted. During the extension operation, the presser plate 40 moves in the direction of separating it from the table surface. The presser plate 40 presses and fixes the workpiece W to the table surface during the above-mentioned approach operation, and is stored within the support frame 37 during the separation operation.

Reference numeral 47 indicates a running ill 4 of the circular saw 26 provided on the cushion pad 42 and the presser plate 40 in correspondence with the saw running slit 6.
8 is a cavity formed inside the holding plate 4o and communicates with the running groove 47; 49 is a suction port opened at the lower end of the cavity 48 toward the horizontal receiving surface 10a; This is a suction hose of a vacuum means (not shown) connected to the suction port 49.

51 is a slide guide in the table surface installed in the same direction as the arrangement direction of the placement ruler plate 7.7; 52 is a contact ruler piece for the workpiece W attached to the slide guide 51; The above-mentioned contact ruler piece 52 is It is designed to be protruded onto the table surface by a rotation operation.

Since the structure of the chip removal device according to the embodiment is as described above, the workpiece W is moved onto the work table 3 by the holding plate 40.
When the circular saw 26 protrudes from the saw running slit 6 onto the table surface and travels, the workpiece W is moved by the circular saw 26.
It is cut by. As shown in FIG.
7 and cut using the up-cut method,
Most of the chips are discharged into the dust collection cover 32 and the suction port 32
a to vacuum means. Also, since the cutting edge faces the running groove 47, some of the chips enter the cavity 48 of the holding plate 40, but these chips fall downward and reach the receiving surface 10a of the auxiliary placement ruler plate 10. At this time, it is removed to the vacuum means by the suction port 49 provided on the front side.

In this way, the chips in the cavity 48 can be completely removed by the time the circular saw 26 reaches near the horizontal receiving surface 10a of the auxiliary mounting ruler plate 10, so that the turbulence of the rotating airflow of the circular saw 26 A sound cutting operation can be performed without scattering to the front or side.

In addition, in one embodiment, the placing ruler plate 7.7 and the auxiliary placing ruler plate 10 are configured separately, but it is also possible to configure both members integrally.

(Effects of the Invention) As described above, the chip removal device of the present invention has a suction port of a vacuum means provided at the lower end of the cavity of the holding plate, thereby removing chips that fall onto the placement ruler plate. For this reason, it is possible to carry out the work in a healthy manner without causing chips to fly around and harm the work environment or damage the workpiece.

[Brief explanation of drawings]

The drawings show an embodiment of the chip removal device for a traveling circular saw according to the present invention, in which FIG. 1 is a front view of a panel saw equipped with this device, FIG. 2 is a side view, and FIG. 3 is a side view. FIG. 4 is a cross-sectional plan view showing the structure of the main parts. FIGS. 5 and 6 are explanatory views showing the structure of the cutting unit. FIG. 7 is a perspective view showing the structure of a conventional panel saw. It is an explanatory view of a cutting mechanism similarly. A: Main body frame B: Cutting unit E: Cutting feed means F: Pressing means W: Workpiece 2: Front frame 3
:Table plate 4a, 4b:Mounting bone member 5(5a, 5
b): Cutting edge plate 6: Slit for saw travel 7: Placement ruler plate 7a: Horizontal receiving surface 10: Auxiliary placement ruler plate 10a: Horizontal receiving surface 11: Suction port 26: Circular saw 32: Dust collection cover
32a: Connection port 37: Support frame 37a: Side plate 4
0: Holding plate 41: Link arm 42: Cushion pad 43: Connecting rod 44: Pneumatic cylinder 46: Piston rod 4: Running groove 48: Cavity 49: Suction port 50: Suction hose 51: Visibility hose

Claims (1)

[Claims] A running slit for the circular saw is provided in the vertical direction of the table surface provided almost vertically, a ruler plate for placing the workpiece is provided at the bottom of the table surface, and a running slit is provided on the front side of the table surface. In a traveling circular saw machine, which is arranged so that a presser plate for workpiece material corresponding to a slit can be approached and separated, a circular saw running groove and a cavity communicating with the groove are provided in the longitudinal direction of the presser plate. A chip removal device for a traveling circular saw machine, which comprises a vacuum means connected to the lower end of a hollow portion and equipped with a suction port facing onto a mounting ruler plate.