JPS597049Y2 - sawdust manufacturing equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sawdust manufacturing device that automatically and efficiently processes scraps from a sawmill etc. into uniform sawdust.One embodiment of the device is described below with reference to the drawings. It is as follows.

1 in the figure is a material feed conveyor provided on one side of the frame 2, and its support frame 3 is attached to the frame 2 with 4 shafts, within the range from the position shown by the solid line shown in Figure 1 of the drawing to the position shown by the chain line. The angle can be freely adjusted, and a pressure roller 6 supported by a swing arm 5 is provided oppositely above the rear part of the roller.

Reference numeral 7 denotes a reduction gear motor for feeding, which rotates the feeding conveyor 1 and the hold-down conveyor 6 at a constant speed in opposite directions.

Reference numeral 8 denotes a rotating shaft horizontally suspended above the terminal end of the feed conveyor 1, which is cantilevered by bearings 9, 9 fixed to the frame 2, so that a tip saw described later can be easily attached and detached, and a part of the circumferential surface is It is correspondingly cut out to form a drum-shaped cross section.

Reference numeral 10 denotes a large number of chipsaws, which are inserted into the rotating shaft 8 in parallel with a spacer 11 between them, and are sandwiched between left and right diagonal washers 12 and 13 with opposite inclinations fitted to both ends of the rotating shaft 8. 8
It is installed obliquely as shown in Figures 1 and 2 of the drawings.

14 is a push screw for the washer 13, passing through the washer 13,
It is screwed onto the rotating shaft 8.

15 is a chip saw cover, and a large number of chip saws 10
A suction pipe 17 of an exhaust fan 16 is connected to the rear part of the vacuum cleaner 16 for sucking up manufactured sawdust and sending it to a storage area.

Reference numeral 18 denotes a motor for driving a chip saw, which transmits power to the rotary shaft 8 via a double belt 19.

20 is a motor for exhausting air, and a double-thread belt 21 is connected to the exhaust fan 16.
Transmitted through.

M1 is a star-delta switch used to start the motor 18 that drives the chipsaw 10, and the push button switch P
When Ba1 is turned on, the closing contact T of the timer T connected in series with the star connection switch MCY of the motor 18 and the closing contact MC△ of the delta connection switch MC△ are closed and the motor 18 operates. It starts with a star connection, and at the same time, the pushbutton switch PBa1 starts a timer T, and when the timer T times up, the closing contact T is opened, and the switch MC△ for delta connection is started.
In order to close the open contact MCY connected in series with the motor 18, the switch MCΔ for the alternator connection is turned on, and the motor 18 is switched to the alternator connection to make full rotation.

At this time, the delta connection switch MC△ connected in series with the switch M2 for the motor 7 that drives the feed conveyor 1 is closed, and when the push button switch PBa2 for the feed motor 7 is turned on, the motor 7 is started. A circuit is constructed.

In this circuit, PBb1 and PBb2 are pushbutton switches for stopping the motors 18 and 7, and when they are turned off, the motors 18 and 7 are stopped.

Further, M3 is a switch for the motor 20 that drives the blower 16. When the push button switch PBa3 is turned on, the switch is activated to rotate the motor 20, and when the push button switch PBb3 is pressed, the motor 20 is stopped.

One embodiment of the device according to the present invention is configured as described above, so that when the pushbutton switch PBa1 is pressed, the motor 18 is first started in star connection, and then switched to filter connection by the action of timer T. When it is in full operation, the circuit of the magnetic switch M2 of the feed motor 7 is connected to the power supply through the contact MC△.If you press the push button switch PBa2 at this time, the motor 7 starts and the feed conveyor starts. 1 and the holding roller 6 are rotated, furthermore,
When the exhaust motor 20 is also rotated by the push button switch PBa3 and the scraps from a sawmill etc. are fed onto the feed conveyor 1, the scraps are clamped by the feed conveyor 1 and the holding roller 6. Each chip saw 10 is mounted obliquely to the rotating shaft 8, and while sequentially changing the contact area with the material, it picks up all the materials within the range of the inclination angle. In order to perform the operation of grinding into sawdust, all the sawn wood is turned into sawdust and thrown off to the rear of the cover 15. Along with this, the exhaust fan 16 sucks up the sawdust and sends it to the storage by wind power, so that the sawdust is removed from the scraps. The work of manufacturing sawdust is automatically and efficiently performed.

In this case, when the feed conveyor 1 is orthogonal to the rotating shaft 8 of the tip saw 10 as shown in FIG. In addition to speeding up the process, the produced sawdust has the disadvantage that the grain size is irregular and the quality is poor. Since the material is diagonally sawn, the cutting resistance is reduced, which not only significantly improves the blade durability of the cutter, but also makes the sawdust particles of good quality with a uniform particle size.

As mentioned above, the device according to the present invention is a device in which a number of chip saws are mounted obliquely to the rotating shaft with spacers in between, and the chip saws are rotated to grind the scraps sent to the feed conveyor. Since the sawn position of the scraps constantly changes due to the oblique installation of the chipsaw, all of the scraps are ground into granules and completely turned into sawdust, so the production of sawdust from the scraps can be performed automatically and extremely efficiently. In addition to this, because the sawing conditions for the offcuts are always constant, the sawdust produced has well-aligned particles and is of good quality, making it easy to handle and capable of producing high-quality secondary products. be.

In particular, this device uses a conveyor and holding rollers to feed the material, allowing the material to be conveyed in a supported manner, which allows for the production of homogeneous sawdust by stable material feeding, and prevents the material from being bounced back by the chip saw. This has the unique effect of ensuring safety.

[Brief explanation of the drawing]

The drawing shows one embodiment of the device according to the present invention.
2 is a plan view of the chipsaw, FIG. 3 is a side view, FIG. 4 is a wiring diagram of each motor switch section, and FIG. 5 is a wiring diagram of each push button switch section. In the figure, 1 is a feed conveyor, 6 is a feed roller, 8 is a rotating shaft, 10 is a chip saw, 11 is a spacer, and 12 and 13 are oblique washers.

Claims (1)

[Scope of utility model registration request] A material feed conveyor with pressure rollers arranged opposite to each other at the upper rear part, a rotating shaft suspended horizontally above the end of this feeding conveyor, a number of chip saws inserted in parallel to the rotating shafts with spacers in between, and this chip saw. A sawdust manufacturing device comprising a pair of diagonal washers which obliquely fix the tip saw to a rotating shaft by sandwiching them from both ends and giving opposite inclinations to each one.