JPH05278006A - Cut refuse discharge device in running circular saw machine - Google Patents

Abstract

PURPOSE:To prevent the damage of a work and the deterioration of the environment of a working table by eliminating the scattering and stagnation of cut refuse on a horizontal ruler plate becoming a work transfer path. CONSTITUTION:A freely liftable cover body 46 to which a suspending tendency is imparted is provided to the lower end part of a press member 33. A lower end part of the cover body 46 is made to abut on the upper surface of the slit cover 10 provided to the connection part of a horizontal ruler plate to close the gap between the press member 33 and the slit cover 10. A cut refuse discharge port 48 is opened to the lower end of the cover body 46 so as to be turned rearwardly and a dust suction port 49 corresponds to the lower part of the discharge port 48 on the rear side thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip removing device for a traveling circular saw that can suppress scattering of chips during cutting and perform sound processing.

[0002]

2. Description of the Related Art A vertical traveling circular saw machine called a panel saw is a machine suitable for cutting a long work material, and is widely used in the furniture industry, joinery industry and the like. The configuration of this circular saw board is as shown in FIG. 8, and will be described below together with the method of use.

In performing the cutting process, first, the work 52 is supplied onto the horizontal ruler plates 51, 51 at the lower part of the work table 55, and the workpiece 52 is moved laterally on the horizontal ruler plate 51. Then, one end is abutted against the contact ruler 53 and positioned. After the positioning, when the work set is completed as described above, the foot saw F drives the circular saw 58 to travel.

The circular saw 58 is a saw traveling slit of the table 55.
Since the work piece 52 projects from 56 and travels, the work piece 52 is cut in the vertical direction and processed into a predetermined width dimension. When the above cutting process is completed, the holding plate member 54 releases the clamp and returns to the retracted position, and the circular saw 57 is retracted into the surface of the table 55, so that the worker 52 divides the workpiece 52 into the product and the residual material. Can be processed.

Here, the above-mentioned pressing member 54 is arranged on a support frame 57 provided on the front side of a table 55 as shown in FIG. In the figure, 59 and 59 are a pair of crank levers rotatably provided at the upper and lower positions of the support frame 57.
Reference numerals 60 and 60 denote crank levers 59 and 59, respectively. A pivot shaft 61 is a connecting rod that connects one end of each of the crank levers 60 and 60.
62 is a pneumatic cylinder mounted downward on the upper end of the support frame 57 The piston rod of the pneumatic cylinder 62 is
It is linked to the connecting rod 61.

Reference numerals 63, 63 are connecting pins provided on the other ends of the crank levers 59, 59, which engage with the pressing member 54. Since the distance between the two rotary support shafts 60, 60 and the distance between the two connecting pins 63, 63 are equal, and the lengths to the other ends of the crank levers 59, 59 are equal, respectively, the crank lever When the 59, 59 rotate, the pressing member 54 holds the work table 55 in parallel and moves toward and away from each other, and the work 52 can be uniformly pressed and clamped at the time of the approach operation.

As described above, the pressing member 54 is a work table.
It moves in parallel with 55, but with some vertical movement at the same time due to the movement by rotation. In order to perform the clamping operation without any hindrance, it is necessary to avoid the lower end portion of the pressing member 54 from contacting the upper surface of the horizontal ruler plate 51. Therefore, the lower end portion 65 and the horizontal ruler plate 51 have a slight gap m. Is required. The gap m varies depending on the thickness of the workpiece 52 to be clamped.

On the other hand, the cutting process by the circular saw 58 is performed by the up-cut method, and the cutting edge of the saw acts to discharge the chips generated in the cutting process into the dust collecting hood 66 by the centrifugal force. Since the negative pressure by the vacuum means acts in the dust collecting hood 66, the removal of chips is made very effective, but some of the substances attached to the cutting edge are formed on the pressing member 54 described above. It separates in the groove 67, falls down, and stays on the upper surface of the horizontal ruler plate 51. The accumulated chips are blown up by the rotating airflow when the circular saw 58 moves and passes therethrough, and scatters forward and from both sides from the gap m.

[0009]

The chips ejected forward can be collected by, for example, corresponding to a vacuum port, but the scattering of the chips to the side causes a horizontal ruler plate which becomes a transfer path of the work 52. 51 It stains the top and causes problems such as damage to the work. In the past, with regard to this measure of chips, removal with an air gun was conventionally performed, but this does not solve the problem because it points out problems such as worsening the work environment. In addition, the work must be interrupted frequently, resulting in a reduction in processing efficiency.

The present invention has been made by paying attention to the problems that have not been solved in the past, and an object of the present invention is to provide a chip removing device capable of performing a sound machining operation by regulating the chip discharge direction. It is a thing.

[0011]

In order to achieve the above object, a chip removing device for a traveling circular saw according to the present invention is constructed as follows. That is, the gist of the work table is a work table configured almost vertically, a slit for saw travel provided in the longitudinal direction of the table, and a work pressing member provided on the front side corresponding to the slit for saw travel. In a circular saw board having a horizontal ruler plate provided below the table so as to be orthogonal to the slits for saw travel, a closing member which is in contact with the horizontal ruler plate is provided on both sides of the lower end of the pressing member. ..

[0012]

Since the lower end side of the pressing member is blocked by the closing member, even if the chips are blown up by the rotating air flow, they will not be scattered and stay on the horizontal ruler plates on both sides. Since the chips are concentratedly removed from the rear side, if the vacuum means is faced here, the chips can be effectively treated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The chip removing device according to the present invention will be specifically described below based on an embodiment. FIG. 1 is a front view of a vertical traveling circular saw equipped with this device. FIG. 2 is a side view of the same, where A is a rear frame 1 having a substantially trapezoidal shape in side view,
The main body frames 3 and 3 constituted by the substantially vertical front frame 2 are the work tables attached to almost the entire surface of the front frame 2, and the work table 4 is vertically arranged in the central portion of the front frame 2 with an appropriate interval as shown in FIG. The pair of attachment frame members 5 installed on the base plate are blade opening plates attached to the attachment frame members 4 and 4, and the blade opening plate 5 is flush with the work table 3 described above. The blade plate 5 is made of a hard synthetic resin plate, a light metal plate, or the like.

Reference numeral 6 is a slit for slitting the saw blade in the vertical direction provided in the blade plate 5, and the slit 5 for saw blade divides the blade plate 5 into two right and left. Reference numerals 7 and 7 denote horizontal ruler plates that are arranged in the lower portion of the work table 3 at right angles to the slits 6 for saw travel. a is formed. 8 and 8 are fixing screws for attaching the horizontal ruler plates 7 and 7 to the work table 3. 9 and 9 are fine adjustment screws for adjusting the levelness of the horizontal ruler plates 7 and 7, and 10 is a butt portion of both horizontal ruler plates 7 and 7. In the above, a slit cover provided so as to cover the front surface of the saw traveling slit 6 has an upper surface which is a ruler surface which coincides with the horizontal receiving surface a.

Reference numeral 11 denotes a guide rail having an H-shaped cross section, which is supported on the upper and lower lateral bones of the rear frame 1 and is provided on the back surface of the work table 3. The guide rail 11 is parallel to the saw traveling slit 6 at an appropriate interval. To be installed. 12
Is a movable base that can be moved up and down on the guide rail 11.
The cutting unit B is mounted on the moving base 12. 6,
In FIG. 7, 13 is a moving base 12 with a rotating shaft 14 horizontal.
The motor 15 attached to the motor is mounted on a bearing 16 concentric with the rotating shaft 14 and an arm 17 is rotatably mounted on a bearing cylinder 18 provided on the free end of the arm 15 is a horizontal saw shaft rotatably supported on the bearing cylinder 17.
A circular saw 19 is attached to one end of the saw shaft 18 via a flange 20.

Reference numeral 21 is a pneumatic cylinder connected to the arm 15.
When the piston rod is extended, the circular saw 19 is projected from the saw traveling slit 6 onto the work table 3, and when the piston rod is contracted, the circular saw 19 is immersed therein. Reference numeral 22 denotes a transmission belt 23 stretched between a passive pulley fixed to the saw shaft 18 and a drive pulley fixed to the rotary shaft 14, and is provided so as to surround the circular saw 19 at the retracted position of the circular saw 19. It is a dust cover.

E is a cutting feeding means for moving the cutting unit B up and down. 24 and 24 are a pair of sprockets 25 attached to the upper and lower ends of the guide rail 11, respectively, and a chain stretched over the sprockets 24 and 24. One end of 25 is attached to the moving base 12. A forward / reverse drive motor 26 is linked to the lower sprocket 24 via an appropriate transmission means. The forward / reverse drive motor 26 drives the chain 25 to move up and down, and transfers the cutting unit B in a desired cutting feed direction. .

Reference numeral F denotes a pressing means for pressing and clamping the work material W on the work table 3. Reference numeral 27 denotes a support frame which is provided on the front side so as to straddle the slit 6 for saw travel.
This support frame 27 has the lower end of the slit cover 10 described above.
The work table 3 is fixed to the work table 3 via the mounting part 28 and the upper end is fixed to the work table 3 via the mounting part 28. 29, 29 are support frames
A pair of crank levers 31, 31 provided on the upper and lower portions of 27 and rotatable by the support shafts 30, 30 are receiving pieces pivotally supported on one end of the crank levers 29, 29.

Reference numeral 32 is a connecting rod that connects both receiving pieces 31, 31.
The connecting rod 32 has threaded portions at opposite ends screwed into the receiving pieces 31, 31 so that the distance between them can be adjusted. The distance between the pair of receiving pieces 31, 31 is the crank lever.
Set in accordance with the distance between the support shafts 30 and 30 on 29 and 29. A pressing member 33 extending in the vertical direction is provided at the other end of the crank levers 29, 29 so as to correspond to the saw traveling slit 6.

That is, the pressing member 33 is, for example, a pultruded product of an aluminum material, has a hollow portion 40 formed therein, and has a pressing pad on the front surface corresponding to the work table 3.
Paste 41. As shown in FIG. 5, a guide groove 35 provided on both sides of the pressing member 33 in the longitudinal direction is shown in FIG. 5, and a nut member 36 slidably and non-removably housed in the guide groove 34 is attached to the nut member 35. The support shaft 37, which is screwed and protrudes to the side, is the operating head of the support shaft 36. The support shaft 36 has a threaded portion 38 that is screwed into the nut member 35, and is fixed in a fixed position in the guide groove 34 when tightly tightened.

The support shaft 36 is the crank lever described above.
It is rotatably fitted in a mounting hole 39 provided at the other end of 29. 42
Is a pneumatic cylinder mounted downward by a support fitting 43 at the upper end of the support frame 27. The piston rod of the pneumatic cylinder 42 is connected to the receiving piece 31, and the pressing member 33 is attached to the work table 3 when the piston rod extends. It operates in a direction away from the work table 3 and in a direction approaching the work table 3 during contraction operation.

Next, the structure of the main part of the present invention will be described with reference to FIGS. The slide guides 45, 45 provided on both sides of the lower part of the pressing member 33 are the cover bodies which can be moved up and down by engaging the long holes 47, 47 with the slide guides 45, 45. The cover body 46 is U-shaped in plan view. And press the release front end
It touches the side of 33. The lower end is always in contact with the upper surface of the slit cover 10 and has a lowering tendency. Reference numeral 48 is a lower end of the cover body 46, and a chip discharge port 49 opened rearward is a dust suction port opened on the upper surface of the slit cover 10 at the lower rear part of the discharge port 48.

The structure of the chip removing device according to one embodiment is as described above, and functions as follows to support the smooth cutting work. That is, since the work pressing operation of the pressing member 33 is performed by the rotational movement of the crank levers 29, 29, an indefinite gap is always formed between the lower end of the pressing member 33 and the upper surface of the slit cover 10 when clamped. However, the above gap is closed by the contact of the cover body 46 hanging from the pressing member with the slit cover 10. At this closed position, the discharge port 48 is open on the rear side of the cover body 46.

When the workpiece W is cut by the circular saw 19 in the above clamped state, some of the chips are pressed by the pressing member 33.
Stays on the upper surface of the slit cover 10 through the hollow portion 40. Then, when the circular saw 19 travels to cut the lower end of the work W, the above chips are blown up by the rotating air flow.
In this case, since the cover body 46 closes the lateral gap as described above, chips do not scatter on the horizontal ruler plates 7, 7. That is, the chips are ejected from the rear discharge port 48,
Excluded from the dust suction port 49 to the outside.

In the above-described embodiment, the cover body 46 is constituted by a member which hangs down by its own weight, but it goes without saying that the cover body 46 may be positively biased downward, and the pressing member 33 is used.
A brush may be provided downward at the lower end of the. The above-mentioned brush is flexible and can always exhibit an appropriate closing action even if the size of the gap changes. Further, in one embodiment, the chip discharge port 48 is opened to the rear side, but it is not necessarily opened if the hollow portion 40 and the dust suction port 49 are connected.

[0026]

As described above, according to the chip removing device of the present invention, the chips are not scattered on the horizontal ruler plate. Therefore, when the work is moved laterally, it is not damaged. In addition, it does not take time and labor to process the scattered chips and does not deteriorate the working environment, and has an excellent effect that the working operation can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a front view of a traveling circular saw board provided with a chip removing device according to the present invention.

FIG. 2 is a side view of a traveling circular saw board.

FIG. 3 is a partially longitudinal side view showing a configuration of a main part of the chip removing device.

FIG. 4 is a cross-sectional plan view showing the structure of the main part of the same.

5 is a cross-sectional plan view taken along the line YY of FIG.

FIG. 6 is a cross-sectional plan view of the cutting unit cut along the line XX of FIG.

FIG. 7 is a front view of a cutting unit.

FIG. 8 is a perspective view showing a configuration of a conventional traveling circular saw board.

FIG. 9 is a side view of a conventional traveling circular saw board.

FIG. 10 is an explanatory view showing a cutting processing state of a conventional traveling circular saw.

[Explanation of symbols]

 3 Work table 6 Slit for saw 7 Horizontal ruler plate 10 Slit cover 19 Circular saw 27 Support frame 29 Crank lever 33 Push member 40 Hollow part 45 Slide guide 46 Cover body 48 Discharge port 49 Dust suction port 51 Pneumatic cylinder B Cutting unit F Pressing means W work

Claims (1)

[Claims] A work table constructed almost vertically, a saw traveling slit provided in the longitudinal direction of this table, a work pressing member provided on the front side corresponding to the saw traveling slit, and a saw traveling under the work table. In a circular saw board having a horizontal ruler plate provided so as to be orthogonal to the slits, a traveling circular saw board characterized in that a closing member that is in contact with the horizontal ruler plate is provided on both sides of the lower end of the pressing member. Chip removal device.