JPH0727808U - Table cleaning equipment for woodworking machines - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a table cleaning device for a woodworking machine capable of safely and reliably removing a work piece and cutting scraps on the table. A table 2 on which a work piece 1 is placed is movably arranged along an upper surface of a base 11, and a cutting device 4 for the work piece 1 is provided above the table 2. An air nozzle 23, which is arranged above the table 2 and extends in the width direction of the table 2 and has an air-blowing slit 24 having an extremely narrow width, is reciprocally arranged along the table 2. A dust collecting hood 7 for collecting the cutting dust blown off by the air nozzle 23 and discharging it to the outside is arranged at the end of the second nozzle 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a table cleaning device for a woodworking machine, and more particularly to a table cleaning device for a woodworking machine for removing cutting dust generated by cutting of a work piece such as wood from the table and the surface of the work piece.

[0002]

[Prior art]

 Generally, many woodworking machines are used for cutting wood, etc., and in such woodworking machines, the cutting debris generated during processing is the upper surface of a table on which a predetermined workpiece is placed or the above If left on the top surface of the work piece, the surface of the work piece will be damaged by cutting chips when the processed work pieces are stacked and stacked, or the work pieces will be adsorbed by the cutting chips when being conveyed by suction. Therefore, since the inconvenience such as the decrease of the cutting edge occurs, it has been conventionally practiced to clean the cutting waste remaining on the table portion of the woodworking machine.

FIG. 5 shows such a conventional table cleaning device for a woodworking machine. Above a table 2 for mounting and fixing a workpiece 1 of the woodworking machine, a predetermined cutting blade 3 is provided. A cutting device 4 to which is attached is disposed so as to be able to move up and down and move in a plane along the table 2. With the cutting device 4 lowered to a predetermined height, the cutting blade is The workpiece 1 is cut while rotating the workpiece 3. A dust collecting frame 5 is arranged on the outer peripheral portion of the cutting device 4 so as to cover the periphery of the cutting device 4, and the upper end of the table 2 is provided at the lower end of the dust collecting frame 5. Further, a coating brush 6 that is brought into contact with the upper surface of the workpiece 1 is provided.

In such a conventional table cleaning device, by lowering the cutting device 4, the coating brush 6 comes into contact with the upper surfaces of the table 2 and the workpiece 1, and the dust collecting frame 5 and the coating brush are covered. The periphery of the cutting device 4 is covered with 6. In this state, by driving the cutting blade 3 to process the work piece 1, the cutting dust generated by this processing does not scatter to the outside of the dust collection frame 5 and the covering brush 6, and a collection not shown. A dust device sucks the cutting dust inside the dust collecting frame 5 through the suction port 5a, thereby removing and cleaning the cutting dust on the upper surfaces of the table 2 and the workpiece 1.

FIG. 6 shows another conventional cleaning means, in which a cutting device 4 for cutting the workpiece 1 is arranged above the table 2 and behind the table 2. Is provided with a dust collecting hood 7 that covers the periphery of the table 2. Then, when the work piece 1 is processed by the cutting blade 3 of the cutting device 4, the operator blows air to the rear of the table 2 by the air gun 8 and the air causes the cutting dust of the dust collecting hood 7 to be collected. It is blown inward to clean the cutting waste.

Further, FIG. 7 shows another conventional cleaning means. A pair of support columns 9 and 9 are arranged on both sides of one end of the table 2, and a plurality of air nozzles (not shown) are provided between the support columns 9. The nozzle heads 10 formed in parallel are arranged so as to be movable up and down with respect to the support column 9.

In such a cleaning device, when the cutting blade 3 is driven to process the workpiece 1, the nozzle head 10 is lowered to the vicinity of the upper surface of the table 2 to remove the workpiece 1. At the time of processing, air is ejected from the air nozzles of the nozzle head 10 to remove the cutting chips on the upper surface of the table 2 and the workpiece 1. Then, when the processing of the workpiece 1 is completed, the ejection of the air is stopped and the nozzle head 10 is moved upward.

[0008]

[Problems to be solved by the device]

 However, in the conventional table cleaning device for a woodworking machine shown in FIG. 5, cutting dust during processing may pass through the covering brush 6 and be discharged to the outside of the dust collecting frame 5, and thus, The cutting waste located outside the dust frame 5 cannot be properly removed. Moreover, since the cutting blade 3 of the cutting device 4 is covered, the working state of the work piece 1 can be visually confirmed. It has the problem of not being able to.

Further, in the means shown in FIG. 6, since the operator operates the air gun to blow off the cutting waste, it is not possible to save labor even if the cutting process is automated. When the cutting dust is blown to the rear dust collecting hood 7 by the operation of the air gun 8, there is a problem that the cutting dust is scattered around and the cutting dust cannot be collected properly.

Further, in the cleaning device shown in FIG. 7, since the nozzle head 10 is moved up and down, when the nozzle head 10 descends, the operator may be caught between the nozzle head 10 and the table 2. There is a problem that safety cannot be ensured.

The present invention has been made in view of the above points, and an object of the present invention is to provide a table cleaning device for a woodworking machine that can safely and reliably remove a work piece and cutting chips on the table. It is what

[0012]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a table cleaning device for a woodworking machine according to the present invention comprises a table on which a workpiece is placed on the upper surface of a base so as to be movable along the base. In a table cleaning device for a woodworking machine, in which a processing device for a workpiece is arranged above, an air nozzle extending in the width direction of the table and having an air blowing slit of an extremely narrow width is formed above the table. It is characterized in that it is arranged so as to be reciprocally movable along the table, and a dust collecting hood is arranged at the end of the table to collect the cutting dust blown off by the air nozzle and discharge it to the outside.

[0013]

[Action]

 According to the present invention, while the workpiece is placed and fixed on the upper surface of the table, while the belt-like air is jetted from the air blowing slit of the air nozzle, the processing device performs the desired processing of the descending object. In this case, the air blown out from the air nozzle blows away the cutting dust generated during cutting, and this cutting dust is sent to the inside of the dust collection hood and discharged to the outside. It is possible to remove cutting chips reliably and automatically.

[0014]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

1 to 3 show an embodiment of a table cleaning device for a woodworking machine according to the present invention, in which guide flanges 12 are formed on both sides of an upper portion of a base 11 so as to project therefrom. An elongated table 2 is arranged on the upper surface of the base 11. A plurality of engaging members 13 that are engaged with the guide flanges 12 are integrally fixed to the lower surface of the table 2, and the table 2 holds the engaging members 13 by a driving device (not shown). It is movable back and forth along the guide flange 12 through. A cutting device 4 as a processing device is vertically movable above the table 2, and a cutting blade 3 is rotatably driven at the lower end of the cutting device 4. .

Further, on both sides of the front end portion of the table 2, support bases 14 and 14 are arranged along the side portions of the table 2, and the support base 14 has an upper surface on which the support bases 14 are provided. A guide rail 15 extending in the longitudinal direction of the table 14 is formed to project. On the upper surface of each of the above-mentioned support bases 14, movable bases 16 and 16 which are engaged with the guide rails 15 and are movable along the guide rails 15 are respectively arranged. A connecting plate 17 that connects the moving bases 16 is disposed on the upper surface of each moving base 16.

A drive cylinder 18 composed of a rodless cylinder is disposed on the outer surface of the one support base 14, and the one movement base 16 is connected to the drive cylinder 18. Has been done. A drive air pipe 19 is connected to both ends of the drive cylinder 18, and a drive air supply pipe 21 is connected to the drive air pipe 19 via an electromagnetic valve 20. The drive air supplied from the drive air supply pipe 21 is supplied to the front end portion or the rear end portion of the drive cylinder 18 by switching the solenoid valve 20 to operate the drive cylinder 18. The connecting plate 17 can be reciprocated along the upper surface of the table 2 via the moving base 16.

Further, a pair of support plates 22 are erected on the upper surfaces of both ends of the connecting plate 17 so as to face each other, and between the support plates 22, an air nozzle 23 having an acute triangular cross-section is formed. Is provided. An air outlet slit 24 having a width of about 0.8 mm is formed at the tip of the air nozzle 23. At both ends of the air nozzle 23, an outlet air supply pipe 26 from an air supply device 25 is provided. It is connected.

Further, at the rear end of the base 11, a dust collecting hood 7 for covering the base 11 and the rear end of the table 2 is arranged. A dust collecting duct 27 that is gradually tapered and is connected to the rear end of the dust collecting hood 7 for sucking a negative pressure inside the dust collecting hood 7 during a processing operation.

Next, the operation of this embodiment will be described.

First, in the initial state in which the air nozzle 23 is located at the rearmost end, the workpiece transfer mechanism (not shown) transfers the workpiece 1 onto the upper surface of the table 2 located at a predetermined loading / unloading position. The work piece 1 is placed and fixed to the upper surface of the table 2 by a holding mechanism such as a suction mechanism (not shown) of the table 2.

Then, the electromagnetic valve 20 is switched in accordance with a placement detection signal of the workpiece 1 from a control device (not shown) to supply drive air to the rear end of the drive cylinder 18, whereby the movable table is moved. 16 is moved forward along the guide rail 15 to move the air nozzle 23 to the front end, and when the detection switch (not shown) detects that the air nozzle 23 is located at the front end, the air nozzle 23 is stopped and the air supply device is stopped. 25, the air is ejected in a band shape from the air ejection slit 24 of the air nozzle 23 through the ejection air supply pipe 26.

Subsequently, the cutting device 4 is lowered and the cutting blade 3 is rotationally driven to perform the desired cutting of the workpiece 1. In this case, in the present embodiment, the air blown out from the air nozzle 23 blows back the cutting dust generated during cutting, and the cutting dust is sent to the inside of the dust collecting hood 7 and the dust collecting duct 2 It is designed to be sucked and discharged to the outside via 7. At this time, in the present embodiment, the air blowing slit 24 of the air nozzle 23 blows the air in a strip shape, so that the cutting waste can be uniformly removed in the width direction of the table 2. . Further, while the cutting device 4 is descending, the air nozzle 23 has a safety mechanism operating so as not to move forward and backward.

After the processing of the work piece 1 is completed, the cutting device 4 is moved up, and after confirming that the cutting device 4 has moved up, the table 2 is moved to the rearmost position and again the predetermined position is reached. It moves forward to the carry-in / out position at a predetermined speed. At this time, the air blown from the air nozzle 23 blows off the cutting chips remaining on the upper surfaces of the workpiece 1 and the table 2 rearward. Then, the solenoid valve 20 is switched to supply drive air to the front end portion of the drive cylinder 18, thereby moving the air nozzle 23 rearward through the moving base 16, and the air nozzle 23 is moved to the rear end by a detection switch (not shown). When it is detected that the air nozzle 23 is located at, the air nozzle 23 is stopped, the air supply device 25 is stopped, and the blowing of air is stopped.

After that, the processed object 1 is carried out by the processed object conveying mechanism to complete the processing of the processed object 1 and the removal of the cutting waste between the table 2 and the processed object 1. Suru

In this state, if no cutting waste remains on the upper surface of the table 2, the unprocessed workpiece 1 is placed on the upper surface of the table 2 and the above-described operation is repeated to perform the processing. A predetermined cutting process is performed while removing the cutting chips of the object 1.

On the other hand, if the cutting waste remains on the upper surface of the table 2 after the work piece 1 is carried out, after confirming that the work piece 1 has been carried out, the air nozzle 23 is moved to the front end again. Then, while blowing air, the table 2 is moved to the rearmost position, and is moved to a predetermined loading / unloading position to blow the cutting debris backward on the upper surface of the table 2, and after removing the cutting debris, the air nozzle 23 is moved to the rear end. To stop the blowing of air. After that, the unprocessed workpiece 1 is placed on the upper surface of the table 2 and cutting is performed.

Therefore, in the present embodiment, air is blown out from the air blowing slit 24 of the air nozzle 23 that is movable along the table 2, so that cutting dust is collected on the upper surface of the table 2 at the rear dust collecting hood. Since it is blown off into the inside of 7, it is possible to remove the cutting debris reliably and automatically. Moreover, since the air nozzle 23 is moved along the table 2 at a position close to the upper surface of the table 2, the working state can be easily visually recognized, and the air nozzle 23 is not structured to move up and down. Accidents such as being caught by an operator do not occur and safe cutting is possible.

FIG. 4 shows another embodiment of the present invention. A scraper 28 whose lower end is brought into contact with the table 2 is attached to the lower surface of the connecting plate 17 supporting the air nozzle 23. It was done.

In this embodiment as well, as in the above-mentioned embodiment, the air blown out by the air nozzle 23 removes the cutting waste remaining on the workpiece and the upper surface of the table 2. There is a possibility that a large amount of crushed material that cannot be removed is generated by the air, and in this embodiment, the lower end of the scraper 28 is brought into sliding contact with the upper surface of the table 2 when the air nozzle 23 moves and the table 2 moves. As a result, the broken material remaining on the upper surface of the table 2 can be removed.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made as necessary.

[0032]

[Effect of device]

 As described above, the table cleaning device for a woodworking machine according to the present invention blows air from the air blowing slits of the air nozzles that are movable along the table, so that the cutting dust is rearwardly transferred to the upper surface of the table. Since it is blown off into the inside of the dust collection hood, it is possible to remove cutting dust reliably and automatically. In addition, since the air nozzle is moved along the table at a position close to the upper surface of the table, the machining state can be easily visually confirmed. Moreover, since the air nozzle does not move up and down, safe cutting is possible. There is an effect that processing can be performed.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a table cleaning device for a woodworking machine according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG.

FIG. 4 is a schematic front view of an air nozzle portion showing another embodiment of the present invention.

FIG. 5 is a schematic configuration diagram showing a conventional table cleaning device.

FIG. 6 is a schematic perspective view showing another conventional table cleaning means.

FIG. 7 is a schematic perspective view showing another conventional table cleaning device.

[Explanation of symbols]

 1 Workpiece 2 Table 3 Cutting blade 4 Cutting device 7 Dust collecting hood 11 Base 14 Support stand 16 Moving stand 17 Connecting plate 18 Drive cylinder 20 Solenoid valve 21 Drive air supply pipe 23 Air nozzle 24 Air blow slit 25 Air supply device 28 Scraper

Claims (1)

[Scope of utility model registration request] 1. A table on which an object to be processed is placed is movably arranged on the upper surface of a base, and a processing device for the object to be processed is arranged above the table. In the table cleaning device of the woodworking machine, above the table,
An air nozzle that extends in the width direction of the table and is formed with an extremely narrow air discharge slit is reciprocally arranged along the table, and collects cutting dust blown off by the air nozzle at the end of the table. A table cleaning device for a woodworking machine, which is provided with a dust collecting hood that discharges to the outside.