JP5934849B1 - Bamboo chip manufacturing equipment - Google Patents

Abstract

A bamboo chip manufacturing apparatus capable of efficiently producing bamboo chips that are easily pulverized. SOLUTION: A crushing means 10 for crushing a bamboo Z0 sent from the longitudinal direction from above, and a crevice groove in the longitudinal direction on the surface of the flat bamboo while sandwiching the crushed flat bamboo delivered from the crushing means 10 from above and below. A pair of crack forming rollers for forming a grooved bamboo by forming a plurality of grooves, and a cutting means disposed on the downstream side in the transport direction from the crack forming roller and for cutting the grooved bamboo into short pieces by a cutting blade. Have. [Selection] Figure 1

Description

  The present invention relates to a bamboo chip manufacturing apparatus.

  In recent years, the use of bamboo has attracted attention as an alternative material for wood resources. For example, when bamboo is used as biomass fuel, or as fertilizer or feed, it has been necessary to finely pulverize the harvested bamboo into bamboo powder. Conventionally, a bamboo powder manufacturing apparatus for finely pulverizing bamboo has been known (see Patent Document 1).

JP 2012-120944 A

  However, the bamboo powder manufacturing apparatus described in Patent Document 1 is such that the bamboo is brought into contact with the outer blade of the tip saw while cutting the tip saw at high speed by a motor, and the bamboo is sequentially made into bamboo powder. The durability of the blade was poor and it was necessary to change the tip saw frequently. For this reason, the work efficiency at the time of grinding | pulverizing a bamboo was bad, the cost increased, and it became a subject of effective use of bamboo and use development.

  Therefore, in the previous step of crushing bamboo, bamboo is cut into small pieces to make bamboo chips of about 10 mm to 50 mm square, and then the small pieces of bamboo chips are further finely crushed with a grinder. A two-stage processing method for making powder has been proposed. However, bamboo chips produced in the primary processing stage are still hard and have a drawback of low work efficiency in the secondary processing stage to be crushed into bamboo powder. Although chemicals or solvents to facilitate bamboo crushing may be used, bamboo chips are unlikely to penetrate the fibers between the chemicals or solvents, and can hardly be expected to have an effect of facilitating bamboo chip crushing. It was.

  Then, an object of this invention is to provide the bamboo chip manufacturing apparatus which can produce the bamboo chip which is easy to grind | pulverize efficiently.

  The bamboo chip manufacturing apparatus according to the present invention includes a crushing means for crushing a bamboo sent in the longitudinal direction from above, and a surface of the flat bamboo while sandwiching the crushed flat bamboo sent out from the crushing means from above and below. A pair of crack forming rollers for forming a grooved bamboo by forming a plurality of longitudinally split grooves in the groove, and the grooved bamboo is formed into short pieces by a cutting blade disposed downstream of the crack forming roller in the conveying direction. And a cutting means for cutting.

The crushing means includes a first pressing roller and a second pressing roller that are capable of moving up and down to press the bamboo from above, and are sequentially disposed in the conveying direction, and correspond to at least one of the first pressing roller and the second pressing roller. A feed roller that is rotationally driven by an electric motor is disposed at a lower position.
Further, the pair of crack forming rollers are elastically biased in a direction relatively approaching by the elastic member.
Further, the cutting means is inclined when viewed from the radial direction, and includes a rotating wheel provided with a plurality of cutting blades having a large number of concave and convex teeth at equal pitches in the circumferential direction, and a plurality of cutting blades. It has a fixed blade provided on the base frame so as to sequentially correspond with the rotation of the rotating wheel.

  According to the bamboo chip manufacturing apparatus of the present invention, the durability of the cutting blade is improved, the cutting chip can be operated continuously for a long time, and the bamboo chip can be processed efficiently. Bamboo chips that can be easily pulverized can be manufactured, and the work of finely pulverizing bamboo chips in the subsequent process can be performed efficiently, contributing to a reduction in the overall cost of using bamboo. it can. Bamboo chips that are easy for chemicals and solvents to enter can be manufactured.

It is the figure which showed a part of bamboo chip manufacturing apparatus based on this invention, (A) is a cross-sectional side view, (B) is a principal part expanded sectional front view. It is the figure which showed the other part of the bamboo chip manufacturing apparatus which concerns on this invention, (A) is a side view, (B) is a principal part expanded sectional front view. It is the figure which showed another part of the bamboo chip manufacturing apparatus which concerns on this invention, (A) is a side view, (B) is a principal part expanded sectional front view, (C) is a top view. . It is a perspective view which shows a crack formation roller. It is the cross-sectional side view which showed further another part of the bamboo chip manufacturing apparatus based on this invention. It is a rear view which shows a cutting means. It is sectional drawing for demonstrating the change of the cross-sectional shape of a bamboo, (A) is sectional drawing of the bamboo before a process, (B) is sectional drawing of a flat bamboo, (C) is a bamboo with a groove | channel. It is sectional drawing. It is a perspective view for demonstrating the change of the external shape of a bamboo, (A) is a perspective view of the bamboo before a process, (B) is a perspective view of a flat bamboo, (C) is a perspective view of a bamboo with a groove | channel. FIG. It is a perspective view which shows the bamboo chip | tip manufactured with the bamboo chip | tip manufacturing apparatus of this invention. It is an expanded sectional front view which shows another 1st press roller and 2nd press roller.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIGS. 1 to 5, bamboo chip manufacturing apparatus of the present invention includes a crushing unit 10 squeezing the bamboo Z ₀ which sequentially sent in the longitudinal direction from above, was crushed delivered from crushing means 10 A pair of crack forming rollers 3 and 3 for forming a plurality of longitudinal crack grooves 7 on the surface of the flat bamboo Z ₁ to form a grooved bamboo Z ₂ , and the downstream of the crack forming rollers 3 and 3 in the conveying direction. by setting to the cutting blade 4 slotted bamboo Z ₂ in part-length lump and a cutting means 12 for (from transverse) cutting includes.

Crushing means 10 includes a first pressing roller 1 shown in FIG. 1, the second pressing roller 2 shown in FIG. 2, they are sequentially arranged in the conveying direction of the bamboo Z _0.
As shown in FIGS. 1 and 2, the first pressing roller 1 and the second pressing roller 2 are formed from a single roller 14 in which outer peripheral surfaces (bamboo-corresponding surfaces) 1A and 2A are formed in an uneven waveform by mechanical cutting. It is configured. The roller unit 14 is provided with pivot shafts 15 integrally projecting from both left and right end surfaces, and is pivotally supported by the pivot shaft 15 so as to be free to rotate. The first pressing roller 1 and the second pressing roller 2 can intensively apply the compressive forces F ₁ and F ₂ to the bamboo Z ₀ and bamboo Z ₀ ′ on the outer circumferential surfaces 1A and 2A of the corrugated corrugations. when, it prevents skidding of bamboo Z ₀ of the cylindrical shape.
The first pressure roller 1 and the second pressure roller 2 are interlocked and connected via a crank mechanism (not shown), and the first pressure roller 1 and the second pressure roller 2 are mutually connected by a drive motor (not shown). It is configured to move up and down in the reverse direction. The structure in which the first pressing roller 1 and the second pressing roller 2 are moved up and down in a reverse direction by a single drive motor has the advantage of saving energy and reducing running costs. Between the first pressing roller 1, the second pressure roller 2 and the crank mechanism, the shock absorber (shock absorber) is interposed, corresponding to the magnitude of the thickness of the bamboo Z ₀ as natural materials (outer diameter). Then, the compressive force _{F 1} of the first pressing roller 1, is set to be 15000N~18000N at maximum, while the set so that the compression force of the second pressing roller 2 _{F 2} becomes the 5000N~6000N at maximum Has been. That is, the first pressing roller 1 can press the bamboo Z ₀ from above with a compressive force F ₁ that is nearly three times the compressive force F ₂ of the second press roller 2.

As shown in FIG. 1, a cradle 16 is disposed below the first pressing roller 1. The cradle 16 is fixed to a fixing member (a base frame 11 described later) of the apparatus. The first pressing roller 1 presses the bamboo Z ₀ between the cradle 16 and makes a crack in the bamboo Z ₀ , or the bamboo Z ₀ is applied by the large compressive force F ₁ of the first pressing roller 1. You may crush at once.
Further, as shown in FIG. 2, a feed roller 13 that is rotationally driven by an electric motor M is disposed at a lower position corresponding to the second pressing roller 2. The feed roller 13 is formed in a cylindrical shape having no irregularities on the outer peripheral surface (bamboo-corresponding surface) 13A, and pivot shafts 17 are integrally projected on both left and right end surfaces. Feed roller 13 is pivoted rotatably by a pivot shaft 17, by an electric motor M, and is rotated in the transport direction of the bamboo Z _0. The second pressing roller 2 presses the bamboo Z ₀ ′ having cracks between the second pressing roller 2 and the crushing bamboo Z ₀ ′ by the compressive force F ₂ .
In the crushing means 10, the substantially cylindrical bamboo Z ₀ as shown in FIGS. 7 (A) and 8 (A) is formed by the first pressing roller 1 and the second pressing roller 2, and FIGS. 7 (B) and 8. As shown in (B), it is deformed into a flat and crushed state. Incidentally, At a present invention, FIG. 7 (B), the as shown in FIG. 8 (B), the collapsed bamboo flat, referred to as a flat bamboo Z _1. Crushing means 10 by the feed rollers 13, a flat bamboo Z ₁ to crushed to deliver to the next step, and applying a conveying force. That is, the feed roller 13 serves both as a transport unit that applies a transport force to the flat bamboo Z ₁ and a role as a cradle that receives the compression force F ₂ of the second pressing roller 2. The first pressure roller 1 and the second pressure roller 2 crush the bamboo Z ₀ that is sent while rotating in the direction of the arrow shown in FIGS. 1 and 2 so that the bamboo Z ₀ is not pressed and stopped. .
A bamboo feeding transport mechanism 18 is provided on the upstream side in the transport direction of the crushing means 10, and the bamboo Z ₀ is sent from the transport mechanism 18 to the crushing means 10 substantially continuously. The transport mechanism 18 consists of a belt conveyor to rotate while supporting the endless belt with a plurality of rotating wheels, it is possible to transport the bamboo Z ₀ of the two 5 present side by side in parallel form.

Next, the crack forming rollers 3 and 3 are disposed close to the downstream side in the conveying direction of the crushing means 10, and as shown in FIGS. 3 and 4, one of the two (upper) crack forming rollers. 3A is pivotally attached to the movable mounting member 30, and the other (downward) crack forming roller 3B is pivotally attached to a fixing member (base frame 11 described later) of the apparatus. The upper crack forming roller 3A is free to rotate, and the lower crack forming roller 3B is rotationally driven by a drive motor M ′.
The movable attachment member 30 has one end 31 in the longitudinal direction pivotally attached to the fixed member 34 by the shaft body 33 and the other end 32 in the longitudinal direction is constantly bulleted in the direction of swinging downward by the bullet member 9. It is energized. The elastic member 9 is composed of a tension spring that always applies an elastic biasing force in the shortening direction. That is, the one crack forming roller 3A is constantly urged by the resilient member 9 in a direction approaching the other crack forming roller 3B. The crack forming rollers 3 and 3 are always energized and urged in the direction of (relatively) approaching by the elastic member 9, so that the flat bamboo Z ₁ is elastically sandwiched from above and below, and the size of the bamboo to be processed ( It corresponds to the flat thickness of the size of the bamboo Z _1).

The crack forming roller 3 includes a cylindrical main body 35 that is rotatable about a rotation axis L ₁ disposed orthogonal to the conveying direction of the bamboo (flat bamboo Z ₁ ), and an outer peripheral surface of the cylindrical main body 35. And a plurality of annular low protrusions 36 arranged in parallel at equal intervals along the circumferential direction. The annular low protrusion 36 has a sharp tip.
The crack forming rollers 3 and 3 press the flat bamboo Z ₁ sent from the crushing means 10 by the elastic urging force of the elastic member 9, and the plurality of annular low protrusions 36 are brought into the surface of the flat bamboo Z ₁ . To bite in from above and below. In this way, the crack forming rollers 3 and 3 have the longitudinal crack grooves 7 on the surface of the flat bamboo Z ₁ shown in FIG. 8B as shown in FIGS. 7C and 8C. A plurality are formed. In the present invention, as shown in FIGS. 7 (C) and 8 (C), a bamboo which is flattened and has a plurality of longitudinal cracks 7 formed on the surface thereof is used as a grooved bamboo Z. Call it ₂ . Lower crack formation roller 3B is to deliver a grooved bamboo Z ₂ to the next process, and applying a conveying force. Crack forming roller 3B is the role of forming a plurality of longitudinal cracks grooves 7 on the surface of the flat bamboo Z _1, on the role as conveying means for applying a conveying force to the grooved bamboo Z _2, is also used.

As shown in FIG. 5 and FIG. 6, the cutting means 12 includes a rotating wheel 6 in which a plurality of cutting blades 4 project at an equal pitch in the circumferential direction, and a fixed blade 5 fixed to a base frame 11. Have. Rotating ring 6 is rotated by the driving motor M ", configured as a plurality of cutting blades 4 are sequentially taken along a position corresponding to the fixed blade 5, one after another cut grooved bamboo Z ₂ sent Has been.
As shown in FIG. 6, the cutting blade 4 is inclined when viewed from the radial direction and has a large number of concave and convex teeth 8. The inclination angle θ of the cutting blade 4 is set to 2 ° to 5 °. Note that the inclination angle θ of the cutting blade 4 is an angle formed by a straight line (tangent line) that contacts the cutting edge of the concavo-convex tooth 8 and the cutting edge of the fixed blade 5. By cutting blade 4 is formed on the inclined at a predetermined inclination angle theta, when cutting the grooved bamboo Z _2, without variation rotational torque greater for cutting, smooth to slide into one after another cut Can do.

Cutting means 12, and cutting the grooved bamboo Z ₂ to a predetermined part length of the small pieces, as shown in FIG. 9, to form the bamboo chips Z ₃ having a surface (longitudinal) cracks groove 7. Note that the "small pieces" shall cut grooved bamboo Z ₂ in the longitudinal direction for each predetermined part length of 10 mm to 50 mm. In addition, in the width direction, it is divided by the separation unit 21 at the time of cutting.
5 At a, grooved bamboo Z ₂ sent a conveying force is applied to the crushing unit 10 and the crevices formed rollers 3,3 on the upstream side in the transport direction. The cutting means 12, the fixed blade 5 and the cutting blade 4, the tip of the slotted bamboo Z ₂ is cut by a predetermined short an inch, grooved next cutting blade 4 has been advanced into the short seconds until the cutting position corresponding This operation is repeated to cut the tip of bamboo Z ₂ by a predetermined short an inch. The cutting means 12 might be provided with a stopper for keeping the length of the bamboo chips Z ₃ in the short dimension, or, momentarily in contact with the cutting blade 4 immediately after the grooved bamboo Z ₂ is disconnected If stopped, slippage occurs between the bamboo at a crushing unit 10 and the crevices formed roller 3,3, substantially continuously be possible to send the bamboo Z _0, the processing capability (transportation speed of the bamboo Z ₀ ) without a dropped little, it is possible to produce efficiently bamboo chips Z _3.
In FIG. 5, a bamboo unloading transport mechanism (belt conveyor) 19 for unloading the bamboo chips Z <b> ₃ is provided below the cutting means 12. Note that by omitting the conveyance mechanism 19 at the lower position of the cutting means 12, it may be collected by receiving the bamboo chips Z ₃ in boxes or bags.

The use method (action) of the above-described bamboo chip manufacturing apparatus of the present invention will be described.
The cylindrical bamboo Z ₀ shown in FIGS. 7 (A) and 8 (A) is passed through the crushing means 10 in a substantially continuous manner, and the cross section is as shown in FIGS. 7 (B) and 8 (B). It is crushed and deformed so as to be flat. Next, the crushed flat bamboo Z ₁ is squeezed out while being pinched from above and below by the pair of crack forming rollers 3 and 3, and as shown in FIGS. 7C and 8C, the flat bamboo Z ₁ A grooved bamboo Z ₂ having a plurality of longitudinal cracks 7 on the surface is obtained. Then, a grooved bamboo Z ₂ fed from crack formation roller 3,3, and cut by the cutting means 12 in the short dimension of the small pieces, as shown in FIG. 9, bamboo having a split groove 7 on the surface forming a chip _{Z 3.} The width dimension of the bamboo chips Z ₃ is small, not constant.

Cutting means 12 is crushed (crushed by means 10) into a flat shape, and cutting the grooved bamboo Z ₂ which longitudinal cracks groove 7 is formed on the surface (in crevices formed roller 3,3) because, as compared with the conventional processing of cutting, cutting bamboo Z ₀ of the cylindrical improves durability of the cutting blade 4, can be run continuously for a long time without stopping the apparatus, the bamboo chips Z ₃ It can be manufactured efficiently. Moreover, the bamboo chips Z ₃ produced is contains countless cracks, since cracks groove 7 is formed on the surface, in grinding easily to a subsequent step (described shown), bamboo chips Z _3. Improve the working efficiency of the grinder that produces bamboo powder from ₃ . Moreover, when using drugs or solvents to facilitate grinding bamboo, easily drug-solvent intrudes from cracks groove 7 bamboo chips Z _3, milled bamboo chips Z ₃ becomes more easily crushed Suitable for use in a machine.

The present invention provides a possible design changes, for example, crushing means 10, may be crushed bamboo Z ₀ by one pressing roller. As shown in FIG. 10, the first pressing roller 1 and the second pressing roller 2 may be formed in an uneven waveform having a large number of corners (edges) 20 on the outer peripheral surfaces 1A and 2A. Although not shown, the first pressing roller 1 and the second pressing roller 2 may be formed by inserting a plurality of wheel-type rollers in a skewered manner through a shaft body.
Further, the cutting means 12, the cutting blade 4 in the vertical direction is repeatedly raised and lowered may be cut grooved bamboo Z _2. In the embodiment of FIG. 6, the concave and convex teeth 8 are triangular teeth, but they can be freely used as rectangular teeth or wave teeth. (However, since the surface of bamboo is slippery, triangular teeth are desirable.)

As described above, the manufacturing apparatus according to the present invention includes a crushing unit 10 squeezing the bamboo Z ₀ transmitted longitudinally from the top, the crushed squamous bamboo Z ₁ sent out from the piezoelectric ulcers means 10 vertically A pair of crack forming rollers 3 and 3 for forming a grooved bamboo Z ₂ by forming a plurality of longitudinal crack grooves 7 on the surface of the flat bamboo Z ₁ while being pinched, and a conveying direction from the crack forming rollers 3 and 3 and a cutting means 12 by the downstream disposed cutting blade 4 for cutting the grooved bamboo Z ₂ in part-length lump, so equipped, improved durability of the cutting blade 4 is continuous over a long period of time to be run, it can be processed efficiently bamboo chip Z _3. Whole can grinding easily manufactured bamboo chips Z _3, finely milled bamboo chips Z ₃ (in the pulverizer next step) can be efficiently performed work, according to the use of bamboo Z ₀ Contributes to cost reduction. It can be drug-solvent to produce a likely bamboo chips Z ₃ intrudes from cracks groove 7.

Moreover, the crushing means 10, the bamboo Z ₀ the first pressing of the vertically movable for pressing from above the roller 1, the second pressure roller 2 are successively arranged in the conveying direction, said first pressing roller 1, the second pressing Since the feed roller 13 that is rotationally driven by the electric motor M is disposed at a lower position corresponding to at least one of the rollers 2, it can be surely adapted to the outer diameter of the bamboo Z ₀ that is fed sequentially. by crushing the bamboo Z ₀ can be a flat bamboo Z ₁ in. A conveying force can be applied to the flat bamboo Z ₁ and it can be smoothly fed.

The pair of crack formation rollers 3 and 3, since the resiliently biased in a direction relatively closer to the elastic member 9, the crushed squamous bamboo Z ₁ thickness fed from the crushing unit 10 in response to the magnitude, it can be reliably formed longitudinal cracks grooves 7 on the surface of the flat bamboo Z _1.

The cutting means 12 is inclined when viewed from the radial direction and includes a plurality of rotating wheels 6 each provided with a plurality of cutting blades 4 having a large number of concave and convex teeth 8 at equal pitches in the circumferential direction. Since the cutting blade 4 has the fixed blade 5 provided on the base frame 11 so as to sequentially correspond with the rotation of the rotating wheel 6, the grooved bamboo Z fed substantially continuously. _2, can be processed into a uniform part length bamboo chips Z _3, can improve the working efficiency at the time of finely ground bamboo chip Z _3. Upon cleavage of the grooved bamboo Z _2, can be without fluctuation torque is large, it slides into smoothly successively cut.

DESCRIPTION OF SYMBOLS 1 1st press roller 2 2nd press roller 3 Crack formation roller 4 Cutting blade 5 Fixed blade 6 Rotating wheel 7 Longitudinal crack groove 8 Concavity and convexity 9 Elastic member 10 Crushing means 11 Base frame 12 Cutting means 13 Feeding roller Z ₀ Bamboo Z ₁ flat bamboo Z ₂ grooved bamboo M Electric motor

Claims (4)

The crushing means (10) for crushing the bamboo (Z ₀ ) sent in the longitudinal direction from above, and the crushed flat bamboo (Z ₁ ) sent out from the crushing means (10) while pressing from above and below A pair of crack forming rollers (3) (3) for forming a grooved bamboo (Z ₂ ) by forming a plurality of longitudinal crack grooves (7) on the surface of the flat bamboo (Z ₁ ), and the crack forming rollers (3 ) (3) provided with a cutting means (12) disposed on the downstream side in the conveying direction and cutting the grooved bamboo (Z ₂ ) into short pieces by a cutting blade (4). Bamboo chip manufacturing equipment. The crushing means (10) includes a first pressing roller (1) and a second pressing roller (2) that are capable of raising and lowering to press the bamboo (Z ₀ ) from above, and are sequentially disposed in the conveying direction. The bamboo chip according to claim 1, wherein a feed roller (13) rotated by an electric motor (M) is disposed at a lower position corresponding to at least one of the roller (1) and the second pressing roller (2). manufacturing device.   The bamboo chip manufacturing apparatus according to claim 1 or 2, wherein the pair of crack forming rollers (3) (3) is elastically biased in a direction relatively approaching by the elastic member (9).   The cutting means (12) is inclined when viewed from the radial direction, and a plurality of the cutting blades (4) having a large number of concave and convex teeth (8) are provided at a constant pitch in the circumferential direction. (6) and a plurality of cutting blades (4) and fixed blades (5) provided on the base frame (11) so as to sequentially correspond with the rotation of the rotating wheel (6). The bamboo chip manufacturing apparatus according to claim 1, 2 or 3.

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