JP4681076B1 - Bamboo crusher - Google Patents

Abstract

Provided is a bamboo tree crusher that generates no needle-like fibers and has low noise.
A cutting mechanism 10 for cutting a bamboo tree B and a pressing mechanism 20 for pressing the bamboo tree B against the cutting mechanism 10 are provided. The cutting mechanism 10 includes a cutting disk 31 that rotates about a center, and a cutting circle. An end face cutting blade 34 is provided on the cutting surface which is the surface of the plate 31, and the pressing mechanism 20 is arranged so that the end face end face of the bamboo tree B matches the rotation axis of the cutting disc 31. This is a bamboo tree crusher A that presses against a cutting surface. Since the end face cutting blade 34 moves in the circumferential direction and cuts the cross section of the bamboo tree B having a circular cross section, no acicular fibers are formed.
[Selection] Figure 1

Description

  The present invention relates to a bamboo material crusher. More specifically, the present invention relates to an apparatus for crushing bamboo material into fine powder.

  Bamboo powder obtained by finely pulverizing bamboo is known to have a high utilization value as a livestock health feed, livestock bedding, and compost raw material rich in fiber and rich in amino acids such as tyrosine and alginic acid. It can also be expected as a health food ingredient that makes use of bamboo ingredients such as udon, buckwheat and bread that can be expected to have a detox effect. However, conventional pulverization method powderization left needle-like fibers and injured the gastrointestinal tract.

Therefore, there is a crushing technology that is intended to be used not only for livestock feed but also for human food materials without cutting the vascular bundle and leaving needle-like fibers without cutting the fibers of the bamboo cross section at high speed with a sharp blade. Has been developed.
An example of such a prior art is Patent Document 1.

  As shown in FIG. 15, the above-described conventional technique rotates a cutting part of bamboo in accordance with a rotary cutting mechanism 120 having a rotary cutting tooth 120 that is rotated by a rotary drive source, and a diameter of bamboo that is a workpiece. A positioning guide mechanism 126 is provided for positioning at a position substantially orthogonal to the tooth 120 and guiding the cutting portion of the bamboo so as to contact the rotating cutting tooth 120.

One of various bamboos 124a to 124d having different diameters and a straight line B that passes through the center of the cutting tip saw 138 constituting the rotary cutting tooth 120 and is substantially orthogonal to the axis of the contact side wall 154 in which the notch 160 is formed. A movable side wall 152 is provided at a position where the side peripheral surface 172 substantially coincides with the side peripheral surface 172.
In other words, cutting the bamboos 124a to 124d with respect to the peripheral surface of the rotary cutting teeth 120 by making the straight line B passing through the center of the cutting saw 138 substantially coincide with one side peripheral surface 172 of the bamboos 124a to 124d. The part is set at a position that is substantially orthogonal.
In this case, the bamboo 124, which is the workpiece, is accurately positioned along the X-axis direction and the Y-axis direction by the abutting side wall 154 and the movable side wall 152.

  After the bamboo 124, which is the workpiece, is positioned in this way, the rotational driving force of the rotational driving source is transmitted to the rotary cutting teeth 120 via the shaft 132. The rotating cutting teeth 120 formed in a substantially cylindrical body by laminating a plurality of cutting tips saws 138 are rotated in the direction of arrow C (clockwise in FIG. 15) with the shaft 132 as the rotation center point, and contact sidewalls Cutting is performed on the bamboo 124 in a range between the front end of the 154 cutout portion 160 and the straight line B.

  If the bamboo (raw bamboo) 124 is cut at room temperature according to the above-described conventional technique, it can be pulverized into micron units (for example, about 10 to 30 μm).

However, in the above conventional example, the rotary cutting teeth 120 cross the end surface of the bamboo 124 having a circular cross section in the radial direction. Therefore, the outer peripheral surface portion and the inner peripheral surface portion of the bamboo 124 have no structure that resists cutting external force. Therefore, there is no back-up force, and the fiber may be peeled off in a needle shape, causing the needle fiber to be mixed into the bamboo powder.
Further, since the knot portion of the bamboo 124 cannot be sufficiently pressed against the rotating cutting teeth 120, the knot portion could hardly be crushed into bamboo powder.
Further, since the lateral displacement of the bamboo 124 (the displacement in the Y-axis direction in FIG. 15) is only supported by the movable side wall 152, chatter vibration occurs during the cutting process, and a considerably large noise is generated. For this reason, it was difficult to operate due to noise damage to the neighborhood.

JP 2003-236403 A

  In view of the above circumstances, an object of the present invention is to provide a bamboo pulverizing apparatus in which needle-like fibers are not generated at all and noise is low.

A bamboo material crushing apparatus according to a first aspect of the present invention includes a cutting mechanism that cuts a long bamboo material, and a pressing guide mechanism that presses the bamboo material while guiding the bamboo material to the cutting mechanism, and the cutting mechanism includes a cutting disk that rotates around a center. The cutting surface, which is the surface of the cutting disc, is provided with an end face cutting blade for cutting the end face of the bamboo material, and the pressing guide mechanism has the tip end face of the bamboo material at the center position of the tip end face. Is guided so as to coincide with the rotation axis of the cutting disk and is pressed against the cutting surface.
According to a second aspect of the present invention, there is provided a bamboo material crushing apparatus according to the first aspect, wherein the cutting mechanism has a perforating means, and the perforating means is disposed on the cutting surface side of the cutting disc and is pressed by the pressing guide mechanism. It is characterized by perforating the central part of the bamboo material.
According to a third aspect of the present invention, there is provided the bamboo material crushing apparatus according to the second aspect, wherein the perforating means is movable between a position close to the cutting surface of the cutting disk and a position advanced therefrom. And
According to a fourth aspect of the present invention, the perforating means comprises a rotating triangular or conical head, a tip blade provided at the apex of the head, and a side portion. A perforating blade made of a formed blade is provided.
According to a fifth aspect of the present invention, there is provided the bamboo material crushing apparatus according to the second, third or fourth aspect, wherein the pressing guide mechanism includes a pressing means for clamping a long bamboo material and urging it in the cutting mechanism direction; A guide mechanism comprising a guide roller for guiding the end face center position so as to coincide with the rotation axis of the cutting disk and fixing the movement of the bamboo material in the radial direction is provided.
According to a sixth aspect of the present invention, there is provided a bamboo material crushing apparatus according to the fifth aspect, wherein the pushing means includes a clamp portion for clamping the bamboo material and a drive portion for moving the clamp portion, and the clamp portion swings in a horizontal plane. It is free and can be moved in the radial direction of the bamboo.
According to a seventh aspect of the present invention, in the fifth or sixth aspect, the bamboo material crushing device detects a bamboo node by the guide roller and generates a detection signal, and the detection signal causes the punching means of the guide mechanism to protrude in the direction of the bamboo material. It has the control part which controls.
According to an eighth aspect of the present invention, in the fifth or sixth aspect of the invention, the guide roller of the guide mechanism and the perforating means are connected via a link mechanism. It is characterized in that the rocking motion when pressed by is converted into advance of the perforating means.

According to the first invention, the pressing guide mechanism guides the end surface of the bamboo material so that the center position of the end surface of the end of the bamboo material coincides with the rotation axis of the cutting disk , and presses it against the cutting surface. The end face is cut by moving the end face cutting blade in the circumferential direction. At this time, the portion to be cut of the bamboo is backed up by the uncut portion, so that the fibers are not peeled off in a needle shape. For this reason, a completely finely divided bamboo powder is obtained.
According to the second invention, the knot portion of the bamboo material can be punched by the punching means, and the outer peripheral portion can be cut with the end face cutting blade, so that it can be pulverized without leaving all the portions of the bamboo material. .
According to the third invention, the drilling means can be advanced from a position close to the cutting surface of the cutting disk, so that the outer peripheral portion is cut with the end face cutting blade in a state where the knot portion of the bamboo material is previously drilled. It is possible to prevent the cutting residue of the bamboo material from being cut.
According to the fourth invention, since the knot portion of the bamboo material is perforated with the perforating blade, it is easy to perforate and a relatively large hole can be formed, so that the entire cross section of the bamboo material can be cut into powder. it can.
According to the fifth aspect of the present invention, since the end surface of the tip of the bamboo is fixed to the cutting surface by the guide roller of the guide mechanism that fixes the movement of the bamboo in the radial direction, chatter vibration may occur during the cutting process. There is no noise.
According to the sixth aspect of the invention, even if the bamboo is bent, the clamp is swung or moved in the radial direction of the bamboo so that the bamboo is pressed without resisting the restraint of the bamboo by the guide roller. Therefore, cutting with the cutting mechanism can be performed smoothly.
According to the seventh invention, the bamboo material nodes are detected by the guide roller, so that the punching means can be ejected at an appropriate timing, and the bamboo material node parts are crushed before starting the cutting of the bamboo material by the end face cutting blade. Can do.
According to the eighth invention, the link mechanism converts the swing when the guide roller is pushed by a bamboo node into the advancement of the drilling means, so that the drilling is automatically performed when the guide roller gets over the node. The means can be advanced.

It is a schematic side view of the bamboo material crushing apparatus A which concerns on one Embodiment of this invention. It is a schematic plan view of the bamboo material crusher A. 2A and 2B are plan views of the cutting mechanism 10, in which FIG. 3A is a diagram illustrating a state in which the punching means 40 protrudes from the cutting disk 31, and FIG. It is explanatory drawing of the end surface cutting part 30, (A) is a front view, (B) is a top view. It is explanatory drawing of the piercing blade 41, (A) is a front view, (B) is a top view. It is explanatory drawing of the vertical guide roller 50. FIG. It is explanatory drawing of the horizontal guide roller 60. FIG. It is explanatory drawing of the clamp part 71, (A) is a top view, (B) is a front view. It is explanatory drawing of the cutting process of the bamboo material B, (A) is the cutting state of the node part b, (B) is explanatory drawing of the cutting state of a main-body part. It is explanatory drawing of the cutting state of the bamboo material. It is explanatory drawing of the raising / lowering mechanism of the piercing blade 41 of other embodiment, (A) is the state which the piercing blade 41 retracted, (B) is explanatory drawing of the state which the piercing blade 41 protruded. It is explanatory drawing of the end surface cutting part 30 of other embodiment, (A) is a front view, (B) is a top view. It is explanatory drawing of the cutting state of the bamboo material B at the time of using the same end surface cutting part 30. FIG. It is explanatory drawing of the drilling blade 41 of other embodiment, (A) is a front view, (B) is a top view. It is explanatory drawing of a prior art.

Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a bamboo material crusher A according to an embodiment of the present invention includes a cutting mechanism 10 that cuts a long bamboo material B, and a pressing guide mechanism 20 that presses the bamboo material B against the cutting mechanism 10. And.

  As shown in FIG. 3, the cutting mechanism 10 includes an end face cutting portion 30 and a punching means 40 as portions for cutting the bamboo material B. The end face cutting unit 30 includes a cutting disk 31 and a cylindrical rotating cylinder 32, and the cutting disk 31 is attached to one end of the rotating cylinder 32. The punching means 40 includes a punching blade 41 and a rotary shaft 42, and the punching blade 41 is attached to the tip of the rotary shaft 42.

A spline 33 is formed on the inner peripheral surface of the rotary cylinder 32, and the spline shaft portion 42a of the rotary shaft 42 is inserted into the spline 33 so that the drilling blade 41 is positioned on the cutting disc 31 side.
Since the spline 33 and the rotary shaft 42 are spline-coupled, torque is transmitted in the circumferential direction of the rotary cylinder 32 but is slidable in the axial direction. That is, the drilling blade 41 can move forward with respect to the cutting disc 31 (see FIG. 3A) or can be retracted to a position close to the cutting disc 31 (see FIG. 3B).

  The mechanism for projecting and retracting the drilling blade 41 and its rotating shaft 42 is arbitrary. For example, the rear end portion of the rotating shaft 42 is sandwiched by a yoke or the like, and the yoke is directly connected to an air cylinder or the like or connected via a link mechanism. Just keep it. In this case, the rotary shaft 42 can be extended and retracted by extending and retracting the air cylinder, and the drilling blade 41 can be extended and retracted as shown in FIGS. 3 (A) and 3 (B).

  The rotating cylinder 32 or the rotating shaft 42 is rotated around the center of the cutting disk 31 by a driving device (not shown). Since the spline 33 and the spline shaft portion 42a are spline-coupled, the driving device may transmit torque of a motor or the like to either the rotary cylinder 32 or the rotary shaft 42 via a gear train or chain transmission. .

As shown in FIG. 4, an end face cutting blade 34 is attached to the cutting surface which is the surface of the cutting disk 31. As the end face cutting blade 34, a cutting tool blade such as a lathe can be used.
In the present embodiment, eight cutting edge blades are used as the end face cutting blades 34, the cutting edge of each cutting tool is directed in the radial direction, is equiangularly spaced in the circumferential direction of the cutting disc 31, and the cutting edge length of the cutting tool in the radial direction. Arranged by shifting by minutes. Further, the end face cutting blades 34 arranged at symmetrical positions with respect to the center of the cutting disk 31 are arranged so that the distances from the center are the same. Therefore, the end face cutting blade 34 is arranged at any diameter on the cutting disc 31, and the workpiece can be cut at any position on the cutting face.

  In addition, if it can cut | disconnect in any position of a cutting surface, the shape and arrangement | positioning of the end surface cutting blade 34 can be selected arbitrarily.

As shown in FIG. 5, the perforating blade 41 includes a triangular plate-like head 43 having a tip blade 44 attached to the apex. Blades are formed at the edges of the two sides of the head 43, and a triangular blade 45 that is an isosceles triangle as a whole is formed. A drill blade can be used as the tip blade 44, and the triangular blade 45 can be formed by sharpening the edge of the head 43.
In a state where the rotary shaft 42 is inserted into the rotary cylinder 32, the vertex of the head 43 to which the tip blade 44 is attached is on the rotary shaft of the cutting disc 31, and the head 43 rotates around the vertex. Yes.

  In the present embodiment, the triangular plate-like head 43 is used, but instead of this, other punching means that can punch the bamboo material B can be used. In this case, the punching means may be any means as long as it is disposed on the cutting surface side of the cutting disk 31 and can punch the center portion of the bamboo material B pressed by the pressing guide mechanism 20.

  As shown in FIG. 1 and FIG. 2, the pressing guide mechanism 20 clamps the guide mechanism including the vertical guide roller 50 and the horizontal guide roller 60 provided in the vicinity of the cutting mechanism 10 and the bamboo material B, in the direction of the cutting mechanism 10. And pressing means 70 for pressing.

  As shown in FIG. 6, the vertical guide roller 50 has a pair of arms 51, and each center is pivotally supported by a pin 52. A pair of rollers 53 that sandwich the bamboo material B in the vertical direction are rotatably attached to one end of the arm 51. The other ends of the arms 51 are connected by an air cylinder 54. Therefore, when the air cylinder 54 contracts, the interval between the pair of rollers 53 widens, and when the air cylinder 54 extends, the interval between the pair of rollers 53 decreases.

  Each roller 53 of the vertical guide roller 50 may rotate by itself by obtaining a driving force of a motor or the like, and may feed and drive the bamboo material B. However, the drive type is suitable because the bamboo material B can be fed to the last end and cut, so that the remaining material is reduced.

According to the vertical guide roller 50, the bamboo material B can be guided in the direction of the cutting mechanism 10 while being fixed by the air cylinder 54 so as not to move in the vertical direction.
Further, in this mechanism, the center between the pair of rollers 53 is not shifted in the vertical direction, and only the interval between the rollers 53 can be adjusted to be wide or narrow. For this reason, even when bamboo materials B having various thicknesses are inserted, the center can always be kept constant.

  As shown in FIG. 7, the horizontal guide roller 60 has a pair of arms 61, each of which is pivotally supported by a pin 62. A sector gear 63 having a pin 62 as a rotation axis is attached to the arm 61 so that the sector gears 63 are engaged with each other. A pair of rollers 64 sandwiching the bamboo material B in the horizontal direction is rotatably attached to the other end of the arm 61. Further, one arm 61 is provided with an air cylinder 65 that can adjust the distance between the pair of rollers 64.

Therefore, the bamboo material B can be guided in the direction of the cutting mechanism 10 while being fixed by the air cylinder 65 so as not to move in the horizontal direction.
Further, since the pair of arms 61 are connected by the sector gear 63, the center between the pair of rollers 64 does not shift in the horizontal direction, and only the interval between the rollers 64 can be adjusted to be wide or narrow. For this reason, even when bamboo materials B having various thicknesses are inserted, the center can always be kept constant.

In the horizontal guide roller 60, the opening and closing operations of the pair of rollers 64 are synchronized by the sector gear 63, but there is an advantage that the synchronization adjustment by the sector gear 63 can be performed reliably. However, the air cylinder 65 may be attached to each of the pair of arms 61 without using the sector gear 63, and some synchronization means may be added.
Alternatively, the pair of rollers 64 may be driven by being fed to the bamboo material B by obtaining a driving force such as a motor, or may be driven without being driven.

  The vertical guide roller 50 and the horizontal guide roller 60 are installed so that the bamboo material B is guided to a position where the center of the end face of the tip end portion coincides with the rotational axis of the cutting disc 31 described above (FIGS. 1 and 2). reference). For this reason, even if it is the long bamboo material B with a curve, it can cut from a front end surface reliably.

  As shown in FIG. 8, the pushing means 70 includes a clamp portion 71 that clamps the bamboo material B. The clamp part 71 includes a fixed part 71a, a movable part 71b, and an air cylinder 71c that transmits a clamping force to the movable part 71b. The fixed portion 71a and the movable portion 71b are formed with a rhombic groove (see FIG. 8B), and the movable portion 71b moves toward the fixed portion 71a, so that the bamboo material B can be clamped. Yes.

  The clamp part 71 is rotatably fixed to a pin 73 provided on the base 72. Therefore, the clamp part 71 is swingable within a horizontal plane. The pedestal 72 is slidably fixed on the slide 74, and the clamp portion 71 is slidable in the radial direction of the bamboo material B.

As shown in FIG. 1, the pushing means 70 has a drive unit 75 that moves the clamp unit 71. The drive unit 75 includes a pair of sprockets 75a, a chain 75b installed between the sprockets 75a, and a drive device (not shown) that rotates one sprocket 75a in both forward and reverse directions.
The chain 75b extends to the vicinity of the cutting mechanism 10 in parallel with the rotation axis of the cutting disc 31, and a slide 74 is fixed to the chain 75b. Therefore, the clamp part 71 can be pressed against the cutting mechanism 10 while the bamboo material B is clamped. Moreover, the clamp part 71 can also be retracted backward after the end of cutting.

  When cutting the bamboo material B, the bamboo material B is inserted and clamped in the vertical guide roller 50 and the horizontal guide roller 60 described above, clamped by the pressing means 70, and the bamboo material B is pushed in. The center position of the end face of the tip can be pressed against the cutting surface of the cutting disk 31 so as to coincide with the rotational axis of the cutting disk 31. And if the cutting disc 31 and the perforation blade 41 are rotated, the end surface of the tip of the bamboo material B can be cut and pulverized.

  In general, bamboo is often bent. However, as shown in FIG. 2, the clamp portion 71 is swingable in a horizontal plane and is slidable in the radial direction of the bamboo material B. Therefore, the position / direction for clamping the bamboo material B has a degree of freedom. is there. Therefore, even if the tip of the bamboo material B is fixed by the vertical guide roller 50 and the horizontal guide roller 60, the clamp portion 71 can press the bamboo material B without resisting the restraint of the bamboo material B. Can be cut smoothly.

  By the way, bamboo is hollow, but there are nodes in some places. As shown in FIG. 9, when the node portion b of the bamboo material B approaches the cutting disc 31, the drilling blade 41 protrudes in the direction of the bamboo material B (A). Then, a hole is made in the node portion b by the tip blade 44 attached to the apex of the head 43, and the node portion b is cut by the triangular blade 45 formed at the edge, so the node portion b is crushed into bamboo powder. It becomes easy. That is, since the perforation blade 41 can be pressed even at the node portion b, it can be crushed into bamboo powder. Moreover, since a comparatively big hole can be drilled, all the cross sections of the bamboo material B can be cut and pulverized.

  When the crushing of the node portion b is finished, the drilling blade 41 is retracted until it comes into contact with the cutting disc 31, and if the cutting disc 31 crushes the outer peripheral portion of the bamboo material B, all portions of the bamboo material B are left. Can be pulverized. Thus, since the drilling blade 41 can freely appear and retract, the knot portion b of the bamboo material B can be drilled in advance, and the outer peripheral portion can be cut with the end face cutting blade 34 in a hollow state, which facilitates powdering. It is possible to prevent the remaining cutting of the node portion b of the bamboo material B from occurring.

  It may be detected by the air cylinder 54 of the vertical guide roller 50 or the air cylinder 65 of the horizontal guide roller 60 that the node portion b of the bamboo material B approaches the cutting disc 31 during the cutting of the bamboo material B. When the rollers 53 and 64 move over the node portion b, the internal pressure of the air cylinders 54 and 65 increases. Therefore, if the pressure change is measured with a pressure gauge, it is detected that the node portion b has approached the cutting disc 31. Can do.

Then, if the signal from the pressure gauge is used as an input signal of a drive mechanism (not shown) that pulls out and rotates the rotating shaft 42, when the node portion b of the bamboo material B approaches the cutting disc 31, the drilling blade 41 is moved to the bamboo material B. Can protrude in the direction of
Therefore, the drilling blade 41 can be protruded at an appropriate timing, and the knot portion b of the bamboo material B can be pulverized before the cutting of the bamboo material B by the end face cutting blade 34 is started.

  According to the bamboo material crushing apparatus A of the present embodiment, as shown in FIG. 10, the end portion of the bamboo material B having a circular cross section is cut while the end face cutting blade 34 moves in the circumferential direction. In this case, even if the external force F of the end face cutting blade 34 is applied to the portion to be cut of the bamboo material B, the portion to be cut of the bamboo material B is backed up by the uncut portion, so that the fibers are not peeled off in a needle shape. For this reason, only the fine powder according to the cutting depth of the end face cutting blade 34 is cut. Therefore, unlike the conventional example, peeling occurs at the outer peripheral surface portion and the inner peripheral surface portion of the bamboo material B, and there is no inconvenience that needle-like fibers are generated. For this reason, a completely finely divided bamboo powder is obtained.

  Moreover, since the front-end | tip part of the bamboo material B is being firmly fixed by the vertical guide roller 50 and the horizontal guide roller 60, chatter vibration does not arise during cutting. Moreover, since the cutting external force by the end face cutting blade 34 works only in the circumferential direction and does not work in the radial direction of the bamboo material B, no chattering vibration occurs. Therefore, the noise during the cutting process becomes very small.

As shown in FIG. 1, a chute 81 and a box 82 are provided below the end face cutting portion 30, and a powder container is connected to the box 82 via a blower (not shown). If a replaceable storage bag is set in the powder container, the cutting powder of the bamboo material B cut by the end face cutting unit 30 is stored in the box 82 via the chute 81, and further the storage bag via the blower. It is stored in.
In addition, it is preferable to cover the periphery of the end surface cutting part 30 with a cover etc. so that scattering of cutting powder can be prevented and all cutting powder can be collect | recovered.

Next, another embodiment of the present invention will be described.
FIG. 11 shows a mechanism for moving the punching blade 41, which is characterized in that the structure is synchronized with the horizontal guide roller 60.
The drilling blade 41 and its rotating shaft 42 have the same structure as that shown in FIG. 3, and the horizontal guide roller 60 has the same structure as that shown in FIG. A thrust type bearing 66 having an inner ring fixed to the rotating shaft 42 is fitted to the rear end of the rotating shaft 42, and one end of a lever 67 is pin-connected to the outer ring of the bearing 66. A central portion of the lever 67 is pivotally supported by a pin 68 on a fixing member of the cutting mechanism 10, and the other end of the lever 67 is pin-connected to a rod 69. The rod 69 is pin-connected to the base of the arm 61 of the horizontal guide roller 60. As described above, the arm 61 and the rotating shaft 42 are connected by the link mechanism including the rod 69 and the lever 67.

  As shown in FIG. 11 (A), when the roller 64 is in contact with a non-node portion of the bamboo material B, the drilling blade 41 is in the retracted position, but as shown in FIG. When 64 rides on the node portion and opens outward, the movement is converted into the swing of the lever 67 through the rod 69, so that the rotating shaft 42 is pushed forward. As a result, the drilling blade 41 protrudes forward and starts to drill the knot portion of the bamboo material B.

As described above, in the embodiment of FIG. 11, the drilling blade 41 can be automatically moved in and out in conjunction with the presence of a node.
The bearing 66 may be fitted inside the rotary shaft 42 and connected to the lever 67. In short, it is only necessary to allow the rotation of the rotating shaft 42 while allowing the roller 64 to move in and out in the axial direction.

FIG. 12 shows another embodiment of the end face cutting part 30. For convenience of explanation, the horizontal axis x and the vertical axis y are shown as a center line passing through the center of the cutting disc 31 and the rotation direction of the cutting disc 31 is indicated by an arrow R in FIG.
The cutting blade 35 is a square bar-shaped member made of tool steel or the like, and has a corner portion formed at a right angle or an acute angle to form a blade. Although four cutting blades 35 are used, all are arranged so as to intersect the central axes x and y. The crossing direction is such that the outer end side of the cutting blade 35 is located in front of the rotation direction R and the inner end side is located rearward.
Each cutting blade 35 may be 3 or less or 5 or more. The attachment to the cutting disk 31 is arbitrary, but a groove is formed in the cutting disk 31, a cutting blade 35 is inserted into the groove, and further fixed with a bolt or the like, so that it does not fall off against the cutting resistance. This is preferable because it can be securely attached.

  According to the cutting blade 35 of the present embodiment, as shown in FIG. 13, cutting is performed while the contact portion moves sequentially from the outer end side of the cutting blade 35 toward the inside with respect to the fibers of the outer skin of the bamboo material B. become. At this time, the fibers of the outer skin are cut while being pressed against the inside of the bamboo material B, so that no uncut residue is generated and the fiber is always cut into a fine powder. Therefore, in this embodiment, mixing of needle-like fibers can be prevented more reliably.

FIG. 14 shows another embodiment of the drilling blade 41.
In the figure, reference numeral 46 denotes a conical head attached to the tip of the rotating shaft 42. A groove is formed on the side surface of the head 46 symmetrically with respect to the center, and a square bar-like blade 47 is inserted into the groove and fixed by an arbitrary means such as a bolt. As the blade 47, an appropriate blade such as tool steel is used. In this way, the two blades 47 are used, but three or four blades may be used.
Further, a tip blade 44 similar to that shown in FIG. 5 is attached to the central portion of the head 46 in the coaxial direction.
Also in the perforating blade 41 of the present embodiment, the bamboo material B can be easily perforated.

  The bamboo fine powder produced as described above does not contain needle-like fibers at all and becomes a fine powder having a uniform size of 10 μm to 300 μm, so that it can be used as a livestock health feed or a human health food material.

A Bamboo Crusher B Bamboo 10 Cutting Mechanism 20 Pressing Guide Mechanism 30 End Face Cutting Section 40 Drilling Means 50 Vertical Guide Roller 60 Horizontal Guide Roller 70 Pushing Means

Claims (8)

A cutting mechanism for cutting a long bamboo material, and a pressing guide mechanism for pressing the bamboo material while guiding the bamboo material to the cutting mechanism,
The cutting mechanism has a cutting disk that rotates around a center;
The cutting surface that is the surface of the cutting disk is provided with an end face cutting blade for cutting the end face of the bamboo material,
The pressing guide mechanism guides the end face of the bamboo material so that the center position of the end face of the end of the bamboo coincides with the rotation axis of the cutting disc, and presses the cutting material against the cutting surface. apparatus. The cutting mechanism has a drilling means,
2. The bamboo material crushing apparatus according to claim 1, wherein the punching means is disposed on a cutting surface side of the cutting disk and punches a central portion of the bamboo material pressed by the pressing guide mechanism. . 3. The bamboo material crushing apparatus according to claim 2, wherein the perforating means is movable between a position close to the cutting surface of the cutting disk and a position advanced therefrom. The perforating means comprises a rotating triangular or conical head;
4. The bamboo material crushing apparatus according to claim 2, wherein a perforating blade comprising a tip blade provided at an apex of the head and a blade provided on a side surface portion is provided. The pressing guide mechanism is
A pushing means for clamping a long bamboo material and urging it in the direction of the cutting mechanism;
Claim leads to tip end surface center position of bamboo to match the rotation axis of the cutting disc, and characterized in that it comprises a guide mechanism comprising a guide roller for fixing the movement of the radial direction of the bamboo The bamboo material crusher according to 2 , 3 or 4. The pushing means has a clamp part for clamping the bamboo material, and a drive part for moving the clamp part,
The bamboo material crushing apparatus according to claim 5, wherein the clamp part is swingable and movable in a radial direction of the bamboo material. Detecting bamboo nodes with the guide roller of the guide mechanism and issuing a detection signal,
The bamboo material crushing apparatus according to claim 5 or 6, further comprising a control unit that controls the perforating means to protrude in a bamboo material direction according to the detection signal. The guide roller of the guide mechanism and the punching means are connected via a link mechanism,
The bamboo pulverizing apparatus according to claim 5 or 6, wherein the link mechanism converts a swing when the guide roller is pushed by a knot of bamboo into advance of the punching means.

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