JPH0246969Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a wood powder manufacturing machine that crushes wood chips such as sawdust and sawdust to form wood powder, and in particular, the present invention relates to a wood powder manufacturing machine that crushes wood chips such as sawdust and sawdust to form wood powder. The present invention relates to a wood flour manufacturing machine suitable for manufacturing.

[Prior Art] Manufacturing machines have been used that produce wood powder by further crushing wood chips that have been cut into leaf shapes with a saw. For example, there is a manufacturing machine disclosed in Japanese Utility Model Application No. 58-147706. The wood powder making machine shaves the wood fed by the wood feed conveyor while being pressed by the presser roller with the cutters arranged in parallel on the outer circumference of the cutter sleeve, sends the wood chips to the rotary hammer side, crushes the wood, and releases the wood powder into the fan. It is configured to suction and discharge by. The cutter used in the prior art has a straight blade, but a spiral cutter having a spiral blade is disclosed in Japanese Utility Model Application No. 152402/1983.

[Problems to be Solved by the Invention] The prior art wood flour making machine relies on the suction force of the fan as a means for sending the wood chips cut by the cutter to the rotary hammer. Of course, even in this prior art, the wood chips are sent to the rotary hammer side by the cutting waste passage and relief ribs formed in the cutter sleeve, but all the wood chips are not inserted into the cutting waste passage. Instead, as mentioned above, some of the cutters are automatically fed to the rotary cutter side due to the suction force of the fan. Therefore, if the suction force of the fan is small, the wood chips will not be sent to the rotating hammer,
Wood chips remain near the outer periphery of the cutter holder, causing damage to the cutter and reducing wood powder suction efficiency. On the other hand, if the suction force is made too strong, a problem arises in that the unpulverized wood chips are sucked into the fan side together with the wood powder crushed by the rotary hammer.

The present invention solves the above-mentioned problems and aims to provide a wood flour manufacturing machine that reliably feeds wood chips to the rotary hammer and improves wood flour manufacturing efficiency.

[Means for solving the problem] For this purpose, the present invention uses a spiral saw having a lead that sends wood chips in the direction of a rotary hammer, and arranges the spiral saw and the rotary hammer on the same rotation axis. This machine constitutes a wood powder manufacturing machine in which the wood chips produced by cutting the fed wood with a spiral saw are screwed to the rotary hammer and are pulverized.

[Operation] The wood chips cut by the spiral saw are sent to the rotary hammer side by the twisted blade of the spiral saw, and the wood chips are fed without the aid of a fan. Therefore, there is no need to increase the suction power of the fan, and only the wood flour is sucked, thereby improving the efficiency of wood flour production.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIG. 1, a spiral saw 1 (having five helical blades, but not limited to this) is fixed to a main shaft 4, and both ends of the main shaft 4 are supported by bearings 5, 5.
Supported by A subshaft 8 is supported on the main shaft 1 via bearings 6 and 7. A hammer 9 of the rotary hammer 3 is fixed to the subshaft 8. Belt pulleys 10 and 11 are connected to the main shaft 4 and the counter shaft 8, and these are driven by a motor 14 via belts 12 and 13.
Both the spiral saw 1 and the rotary hammer 3 are covered by an outer plate 15. A wood powder discharge port 16 is connected to the outer panel 15, and the wood powder discharge port 16 is connected to a fan 18 via a bent pipe 17. The fan 18 is driven by a fan drive motor 19, and the sucked wood powder is sent to the discharge port 2.
Discharge from 0. A wood feed conveyor 21 is arranged near the outer periphery of the spiral saw 1, and presser rollers 22 and 23 are arranged on the wood feed conveyor 21. The wood 24 is introduced into the spiral saw 1 while being sandwiched between the presser rollers 22 and 23 and the wood feed conveyor 21. The presser roller 22 is driven by a motor 25. Further, although detailed explanation is omitted, the presser rollers 22 and 23 are connected to the wood 2 by a link mechanism 26.
It is supported so that it can be complexly oscillated in accordance with the formation of 4.

FIG. 3 shows the spiral saw 1 used in this embodiment, and FIG. 2 shows the twisted blade 2 thereof. As mentioned above, the spiral saw 1 is disclosed in Japanese Utility Model Application No. 152402/1983, and its outline will be explained below.

As shown in FIG. 2, the twisted blade 2 is formed from a part of an ordinary circular saw with a cut 27 cut therein. A circular saw having this split 27 is shown in FIG.
It is fitted into the sleeve 28, the split 27 is opened to form a screw feed lead, the spacer 29 is interposed between the circular saws, and the end seat 30 and the like are fixed with bolts 31. The twisting direction is such that the wood chips cut by the spiral saw 1 are sent in the direction of the rotary cutter 3.

Next, the operation of this embodiment will be explained in more detail.

When the wood 24 is loaded onto the wood feed conveyor 21 and inserted into the spiral saw 1, the twisted blade 2
A suitably shaped piece of wood is formed by cutting. All of this wood chips are sent to the rotary hammer 3 side by the feed lead of the twisted blade 2 as described above. The wood chips are removed by the hammer 9 of the rotary hammer 3 coaxial with the spiral saw 1.
are all ground to form wood flour. Although the fan 18 is constantly rotating, its suction force may be strong enough to suction the wood powder generated by the rotary hammer 3, and this suction force can reliably suck only the wood powder. Of course, unlike the prior art, wood chips do not remain near the outer periphery of the spiral saw 1.

In this embodiment, the split 2 is used as the spiral saw 1.
Although circular saws having a diameter of 7 are installed in parallel, the present invention is not limited to this.

[Effects of the Invention] As is clear from the above description, the present invention has the effect of reliably sending wood chips to the rotary hammer and improving the efficiency of producing wood flour.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is a plan view of a twisted blade used in the embodiment, and FIG. 3 is an axial sectional view of the spiral saw of the embodiment. 1...Spiral saw, 2...Twisted blade, 3...Rotating hammer, 4...Main shaft, 5, 6, 7...Bearing, 8
...Countershaft, 9...Hammer, 10, 11...Pulley, 12, 13...Belt, 14, 25...Motor, 15...Outer plate, 16...Wood powder outlet, 17...
... Bent pipe, 18 ... Fan, 19 ... Fan drive motor, 20 ... Discharge port, 21 ... Wood feed conveyor, 22, 23 ... Presser roller, 24 ... Wood,
26...link mechanism, 27...split, 28...
Sleeve, 29... Spacer, 30... End seat, 31...
…bolt.

Claims (1)

[Scope of utility model registration request] In a wood powder manufacturing machine that saws the wood that has been sent in, crushes the wood chips with a rotating hammer, and sucks and discharges the wood powder, a spiral saw having a feed lead that directs the saw to the rotating hammer side is used. A wood flour manufacturing machine characterized in that the machine is formed from a saw, and the rotary hammer is disposed on the same rotating shaft as the spiral saw.