JP3246504U - Wood grinding equipment - Google Patents

Abstract

[Problem] To provide a wood crushing device that can stably cut and crush waste wood to improve processing efficiency. [Solution] The device comprises a rotating means 31 rotatably mounted within the working space 21 of a wood crusher 2, a plurality of rotating blade means 32 removably fixed to the rotating means 31, a first fixed blade means 33 fixed to the front side 231 of the lower wall surface 23 of the wood crusher 2, and a second fixed blade means 34 fixed to the rear side 232 of the lower wall surface 23, each of the rotating blade means 32 being configured to have a sawtooth rotating blade tip, the first fixed blade means 33 being configured to have a sawtooth first fixed blade tip, and the second fixed blade means 34 being configured to have a sawtooth second fixed blade tip. [Selected Figure] Figure 3

Description

This invention relates to a wood grinding device, and in particular to a wood grinding device used in a wood grinder to grind wood.

As shown in Figures 1 and 2, the wood crushing device used in the conventional wood crusher 1 has a rotating member 11 rotatably arranged in the wood crusher 1, a first crushing means 12 attached to the rotating member 11, and a second crushing means 13 fixed in the wood crusher 1 corresponding to the first crushing means 12 that rotates together with the rotating member 11. Waste wood such as thinned wood, pruned wood, and felled wood that enters the wood crusher 1 from the entrance 101 of the wood crusher 1 is placed on the second crushing means 13 fixed in the wood crusher 1, and the waste wood is cut and crushed by hitting it with the first crushing means 12 that approaches the second crushing means 13 from above as it rotates, and the waste wood that has been finely crushed by the first crushing means 12 that continues to rotate is pushed out to the discharge port 102 and discharged.

However, as in the wood crusher described in Patent Document 1, for example, the tips of the rotating first crushing means 12 and the fixed second crushing means 13 are both straight-lined, so when the waste wood is cut and crushed by the first crushing means 12 and the second crushing means 13, the waste wood cannot be cut and crushed while being securely held and fixed, and there is still room for further improvement in the efficiency of cutting and crushing.

Taiwan Utility Model No. M265118

In consideration of the above problems, the present invention aims to provide a wood crushing device that can stably cut and crush waste wood to improve processing efficiency.

In order to achieve the above object, the present invention provides a wood grinding device for use in a wood grinder, the wood grinding device having at least a side wall surface disposed substantially vertically so as to extend along a vertical direction, and a bottom wall surface perpendicular to the side wall surface so as to face upward in the vertical direction, the bottom wall surface having a front side portion located at the front side in a front-to-rear direction perpendicular to the vertical direction, and a rear side portion located at the rear side in the front-to-rear direction, the front side portion being perpendicular to the vertical direction, and the bottom wall surface defining a working space,
a rotating means attached to the side wall surface so as to be rotatable within the working space about a rotation axis substantially perpendicular to the side wall surface;
a plurality of rotating blade means removably fixed to said rotating means at intervals in the direction of rotation of said rotating means;
a first fixed blade means removably secured to said front portion of said bottom wall so as to be adjacent but not in contact with said rotating means;
a second fixed blade means removably secured to the rear side of the lower wall surface adjacent to but not in contact with the rotating means;
Each of the rotating blade means is configured to have a rotating blade holder that is removably fixed to the rotating means, and a serrated rotating blade tip that is located at a distance from the rotating means of the rotating blade holder and passes next to the first fixed blade means and the second fixed blade means when the rotating means rotates,
the first fixed blade means is configured to have a first fixed blade holding part removably fixed to the front side part of the lower wall surface, and a first fixed blade tip part having a sawtooth shape and disposed at a tip of the first fixed blade holding part adjacent to the rotating means,
The second fixed blade means is configured to have a second fixed blade holding portion that is removably fixed to the rear side portion of the lower wall surface, and a serrated second fixed blade tip portion that is positioned at the tip of the second fixed blade holding portion adjacent to the rotating means.

With the above configuration, each of the rotating blade means, the first fixed blade means, and the second fixed blade means of the wood crushing device of the present invention is configured to have a sawtooth rotating blade tip, a sawtooth first fixed blade tip, or a sawtooth second fixed blade tip, respectively, so that these sawtooth tip structures can be used to cut and crush waste wood while it is securely held and fixed, effectively improving the efficiency of cutting and crushing.

FIG. 1 is a cross-sectional view showing an example of the configuration of a conventional wood crusher. FIG. 2 is a perspective view showing a partial configuration of the conventional wood grinder shown in FIG. FIG. 2 is a cross-sectional view showing the structure in which the first embodiment of the wood grinding device of the present invention is mounted on a wood grinder. FIG. 1 is a perspective view showing the configuration of a first embodiment of a wood grinding device according to the present invention; FIG. 2 is a cross-sectional view showing a configuration in which a second embodiment of the wood crushing device of the present invention is mounted on a wood crusher.

3 and 4 show a first embodiment of the wood crushing device 3 of the present invention, which is installed and operated inside a wood crusher 2. As shown in the figures, the wood crusher 2 has a working space 21 defined between an entrance 201 on the left side of the figure and an exit 202 on the right side of the figure. That is, the working space 21 is defined between a side wall surface 22 disposed substantially vertically so as to extend along the vertical direction of the wood crusher 2, and a lower wall surface 23 perpendicular to the side wall surface 22 so as to face upward in the vertical direction, and having a front side portion 231 on the front side in the front-rear direction perpendicular to the vertical direction and a rear side portion 232 on the rear side in the front-rear direction. The wood crushing device 3 of the present invention is disposed in the working space 21 so as to be driven by a driving means (not shown), such as a motor, of the wood crusher 2.

In this first embodiment, as shown in FIG. 3, the wood grinding device 3 of the present invention includes a rotating means 31 attached to the side wall surface 22 of the wood grinder 2 so as to rotate in the working space 21 around a rotating shaft 312 that is approximately perpendicular to the side wall surface 22, a plurality of rotating blade means 32 (one above and one below as shown in this embodiment) that are removably fixed to the rotating means 31 with a space therebetween in the direction in which the rotating means 31 rotates, a first fixed blade means 33 that is removably fixed to the front side portion 231 of the bottom wall surface 23 so as to be adjacent to but not in contact with the rotating means 31, and a second fixed blade means 34 that is removably fixed to the rear side portion 232 of the bottom wall surface 23 so as to be adjacent to but not in contact with the rotating means 31.

In this first embodiment, the lower wall surface 23 of the wood grinder 2 is formed in a shape in which a curved portion 233 is interposed between the front side portion 231 and the rear side portion 232, and the rotating means 31 is arranged in the working space 21 so as to be located between the front side portion 231 and the rear side portion 232 of the lower wall surface 23. This makes it possible to arrange the first fixed blade means 33 fixed to the front side portion 231 of the lower wall surface 23 and the second fixed blade means 34 fixed to the rear side portion 232 of the lower wall surface 23 in a position relatively close to the rotating means 31.

As shown in FIG. 4, each of the upper and lower rotating blade means 32 has a rotating blade holder 321 that is removably fixed to the rotating means 31, and a sawtooth rotating blade tip 322 that is located away from the rotating means 31 of the rotating blade holder 321 and passes next to the first fixed blade means 33 and the second fixed blade means 34 when the rotating means 31 rotates.

The first fixed blade means 33 is configured to have a first fixed blade holding part 331 that is removably fixed to the front side part 231 of the lower wall surface 23, and a sawtooth-shaped first fixed blade tip part 332 that is located at the tip of the first fixed blade holding part 331 adjacent to the rotating means 31.

The second fixed blade means 34 is configured to have a second fixed blade holding part 341 that is removably fixed to the rear side part 232 of the lower wall surface 23, and a second fixed blade tip part 342 that is serrated and disposed at the tip of the second fixed blade holding part 341 adjacent to the rotating means 31.

With this configuration, when waste wood to be processed is sent into the working space 21 from the entrance 201 of the wood crusher 2, the lower part of the waste wood first comes into contact with the first fixed blade tip 332 of the first fixed blade means 33 fixed to the front part 231 of the lower wall surface 23, and each rotating blade means 32 fixed to the rotating means 31 rotated by the driving means rotates together with the rotating means 31, so that when each rotating blade means 32 passes next to the first fixed blade means 33, it cuts or crushes the lower part of the waste wood that is in contact with the first fixed blade tip 332 of the first fixed blade means 33. Furthermore, since both the rotating blade tip 322 and the first fixed blade tip 332 in this invention are formed in a sawtooth shape, it is possible to effectively break the waste wood while firmly holding the lower part of the waste wood by utilizing this sawtooth shape. Furthermore, the waste wood cut or crushed by the interlocking of the rotating blade means 32 and the first fixed blade means 33 is transported to the rear side 231 via the curved portion 233 of the lower wall surface 23 by the rotation of the rotating means 31, and then enters between the second fixed blade tip 342 of the second fixed blade means 34 fixed to the rear side 231 of the lower wall surface 23 and the rotating means 31, and is reliably cut and crushed into small pieces by each rotating blade means 32 that passes next to the second fixed blade means 34 as the rotating means 31 rotates, before being discharged from the discharge port 202 of the wood crusher 2.

In this way, in the present invention, each rotating blade means 32 fixed to the rotating means 31 driven to rotate by the driving means rotates together with the rotating means 31, so that the rotating blade tip 322 of each rotating blade means 32 passes next to the first fixed blade means 33 and the second fixed blade means 34 when the rotating means 31 rotates, and performs the function of cutting and crushing the waste wood to be treated that is between the rotating blade tip 322 of the rotating blade means 32 and the first fixed blade tip 332 of the first fixed blade means 33, and between the rotating blade tip 322 of the rotating blade means 32 and the second fixed blade tip 342 of the second fixed blade means 34.

Furthermore, since the rotating blade means 32 in the wood crushing device 3 of the present invention are both configured to be removable, if a configuration is adopted in which in addition to the rotating blade tip 322 formed at the end of the rotating blade holding part 321 away from the rotating means 31, another rotating blade tip 322 is formed on the opposite side, even if one rotating blade tip 322 reaches the end of its service life due to wear or the like, the unused rotating blade tip 322 on the opposite side can be used by removing the rotating blade means 32, inverting it, and then reattaching it, thereby essentially doubling the service life. Alternatively, by forming the two rotating blade tips 322 of one rotating blade means 32 into different shapes, it becomes possible to use them differently depending on the type of waste wood to be processed, etc.

Furthermore, the first fixed blade means 33 and the second fixed blade means 34 can also achieve the same effect by adopting a configuration having two first fixed blade tips 332 and two second fixed blade tips 342.

Therefore, each rotating blade means 32 in the wood grinding device 3 of the present invention can be formed to have a rotating blade tip 322 at the end of the rotating blade holding part 321 away from the rotating means 31 and another rotating blade tip 322 arranged on the opposite side, and with respect to the first fixed blade means 33 and the second fixed blade means 34, the first fixed blade means 33 can be formed to have another first fixed blade tip 332 arranged on the opposite side of the first fixed blade tip 332, and the second fixed blade means 34 can be formed to have another second fixed blade tip 342 arranged on the opposite side of the second fixed blade tip 342.

Figure 5 shows a second embodiment of the wood crushing device of the present invention. As shown in the figure, a flat horizontal portion 234 is interposed between the front side portion 231 and the rear side portion 232 of the lower wall surface 23 of the wood crusher 2 to which the wood crushing device 3 of this second embodiment is attached. In addition, in the second embodiment of the wood crushing device of the present invention, the second fixed blade means 34 is also fixed to this horizontal portion 234. Therefore, when the rotating blade tip 322 of each rotating blade means 32 passes next to the second fixed blade means 34, it is possible to perform the cutting and crushing function, and it is expected that the waste wood to be processed can be cut and crushed into even finer pieces.

In other words, the number of first fixed blade means 33 and second fixed blade means 34 of the wood grinding device 3 of the present invention is not limited to one, and the number can be increased as necessary and placed in appropriate positions.

The above describes an embodiment of the present invention, but the present invention is not limited to this, and various modifications are possible without departing from the spirit of the invention.

2 Wood crusher 201 Entrance 202 Discharge port 21 Working space 22 Side wall surface 23 Lower wall surface 231 Front side portion 232 Rear side portion 233 Curved portion 234 Horizontal portion 3 Wood crushing device 31 Rotating means 311 Rotating portion 312 Rotating shaft 32 Rotating blade means 321 Rotating blade holding portion 322 Rotating blade tip portion 33 First fixed blade means 331 First fixed blade holding portion 332 First fixed blade tip portion 34 Second fixed blade means 341 Second fixed blade holding portion 342 Second fixed blade tip portion

Claims (2)

A wood grinding device for use in a wood grinder, comprising at least a side wall surface disposed substantially vertically so as to extend along a vertical direction, and a bottom wall surface perpendicular to the side wall surface so as to face upward in the vertical direction, and having a front side portion located at the front side in a front-to-rear direction perpendicular to the vertical direction and a rear side portion located at the rear side in the front-to-rear direction, the front side portion being perpendicular to the vertical direction, the bottom wall surface defining a working space,
a rotating means attached to the side wall surface so as to be rotatable within the working space about a rotation axis substantially perpendicular to the side wall surface;
a plurality of rotating blade means removably fixed to said rotating means at intervals in the direction of rotation of said rotating means;
a first fixed blade means removably secured to said front portion of said bottom wall so as to be adjacent but not in contact with said rotating means;
a second fixed blade means removably secured to the rear side of the lower wall surface adjacent to but not in contact with the rotating means;
Each of the rotating blade means is configured to have a rotating blade holder that is removably fixed to the rotating means, and a serrated rotating blade tip that is located at a distance from the rotating means of the rotating blade holder and passes next to the first fixed blade means and the second fixed blade means when the rotating means rotates,
the first fixed blade means is configured to have a first fixed blade holding part removably fixed to the front side part of the lower wall surface, and a first fixed blade tip part having a sawtooth shape and disposed at a tip of the first fixed blade holding part adjacent to the rotating means,
The second fixed blade means is configured to have a second fixed blade holding portion that is removably fixed to the rear side portion of the lower wall surface, and a second fixed blade tip portion having a serrated shape that is disposed at the tip of the second fixed blade holding portion adjacent to the rotating means. each of the rotary blade means is formed to have the rotary blade tip portion at a point away from the rotary means of the rotary blade holding portion and another rotary blade tip portion disposed on the opposite side;
the first fixed blade means is also formed with another first fixed blade tip disposed opposite the first fixed blade tip;
2. The wood grinding apparatus of claim 1, wherein said second fixed blade means is also configured to have another second fixed blade tip disposed opposite said second fixed blade tip.

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