JP6284385B2 - Oga powder manufacturing equipment - Google Patents

Description

  The present invention relates to a sawdust manufacturing apparatus that shreds a woody material to manufacture sawdust and wood chips.

  Conventionally, as a sawdust manufacturing device, the input wood is conveyed by a belt conveyor, and the wood is pressed with a rotor from above the belt conveyor and sandwiched between the belt conveyor and the end of the belt conveyor. Some of them are formed so as to be cut by a rotary blade arranged adjacent to. This sawdust manufacturing apparatus tries to prevent the inconvenience that the wood moves by the reaction force when the wood is cut and escapes from the rotary blade by holding the wood between the rotor and the belt conveyor.

  As such sawdust manufacturing apparatus, above the belt conveyor, the front rotor disposed on the side close to the wood loading position, the rear rotor disposed on the side close to the rotary blade, the front rotor and the rear rotor, There is a rotor unit composed of a swing arm that connects the two rotors so as to be swingable about the rotation axis of the rear rotor (see Patent Document 1). In this sawdust manufacturing apparatus, a swinging rotary shaft that supports a swinging arm and swings a rear rotor rotatably is attached to a casing that houses a rotor unit via a bearing. Yes. The front rotor is formed by inserting a plurality of disks through a rotating shaft supported by the swing arm. The rear rotor is formed by inserting a plurality of disks through the oscillating rotation shaft, and a pressing member for pressing the wood is disposed between the disks. The pressing member is formed of a fan-like plate-like body that is widened toward the rotary blade, and a portion corresponding to the main part of the fan-like shape is inserted into the swinging rotary shaft so that the widened portion can swing. The casing to which the swing rotation shaft for supporting the rotor unit is attached is formed so as to be swingable around a swing shaft provided penetrating on the wood input side of the casing. A pulley on the terminal end side of the belt conveyor is disposed below the rear rotor of the rotor unit, and a rotational force is input from a common motor to the front rotor, the rear rotor, and the pulley. In this sawdust manufacturing apparatus, when the wood is guided to the rotary blade side by the belt conveyor, the rotor unit swings around the swinging rotation axis, the front rotor rides on the wood, and then the casing swings around the swinging axis. The rear rotor rides on the wood, and the wood pushes up the portion corresponding to the end of the holding member along the fan, so that the holding member rides on the wood. In this way, the wood is pressed by the weight of the rotor unit, the casing and the pressing member, and the inconvenience of the wood moving due to the reaction force when contacting the rotary blade is prevented.

JP 62-292406 A

  However, the conventional sawdust manufacturing apparatus has a problem in that the weight of the presser member, the casing, and the rear rotor acts on the pulley of the lower belt conveyor via the rear rotor, so that the pulley and the conveyor belt are easily damaged. is there. In addition, when the presser member attached to the rocking rotation shaft rides on the wood, the portion corresponding to the edge of the fan gives the wood a force in the direction of the inlet, so that the wood is transported toward the rotary blade. However, there is a problem that waste occurs.

  In addition, the conventional sawdust manufacturing apparatus has a disadvantage in that the wood conveyed by the belt conveyor collides with the front rotor, and a pressing failure occurs such that the collided wood rides on the front rotor. If a pressing failure of wood occurs, the rotating shaft and bearing of the front rotor and the swing arm may be damaged, and the rear roller and the conveying device may be adversely affected.

  Therefore, an object of the present invention is to effectively press the input wood material without waste without causing damage to the components, and to stably feed out the wood material, thereby rotating the wood material. An object of the present invention is to provide an apparatus for producing saw powder that can be stably cut with a blade and that can stably produce cutting pieces such as saw chips and wood chips.

In order to solve the above-mentioned problem, the sawdust manufacturing apparatus of the present invention includes a transporting device that transports an input wood material,
A cutting rotor which is disposed on the terminal end side of the conveying device and is rotationally driven with a rotary blade;
A fixed blade disposed close to the rotation path of the rotary blade of the cutting rotor;
A first pressing rotor that is rotationally driven in synchronization with the conveying device, and presses the wood material conveyed by the conveying device and sends it to the cutting rotor side;
The wood that is rotationally driven in synchronism with the conveying device and is disposed on the cutting rotor side with respect to the first pressing rotor and on the cutting rotor side with respect to the driving wheel at the end of the conveying device, and is conveyed by the conveying device. A second pressing rotor that presses the material and sends it to the cutting rotor side;
A swing support member pivotally attached to the rotation shaft of the second pressing rotor and supporting the first pressing rotor in a swingable manner;
The first pressing rotor and the second pressing rotor are covered, and the rotation shaft of the second pressing rotor is pivotally supported. On the other hand, the first pressing rotor and the second pressing rotor are swingably supported by a swinging shaft disposed on the input side of the transport device. A swinging casing,
The wood material, which is rotationally driven in synchronization with the conveying device, is disposed between the end of the conveying device and the cutting rotor, and below the second pressing rotor, and is conveyed by the conveying device. And a feeding rotor to be sent to.

  According to the said structure, the thrown-in wood material is conveyed toward the cutting rotor arrange | positioned at the terminal side of the conveying apparatus by the conveying apparatus. When the wood material conveyed by the conveying device reaches the first pressing rotor, the wooden material rides on the first pressing rotor that swings around the rotation axis of the second pressing rotor by the swing support member, and the weight of the first pressing rotor is increased. Is pressed. When the wood material is further conveyed to the cutting rotor side, the wood material rides on the second pressing rotor that swings around the swinging shaft together with the swinging casing, and the weight of the first pressing rotor, the second pressing rotor, and the swinging casing is increased. Pressed. At the same time, the wood material is fed to the cutting rotor side by the feed rotor disposed between the terminal end of the conveying device and the cutting rotor and below the second pressing rotor. Thus, the wood material conveyed by the conveying device is pressed by the first pressing rotor and the second pressing rotor that are rotationally driven in synchronism with the conveying device, is sent to the cutting rotor, and is rotationally driven in synchronism with the conveying device. Therefore, it is possible to effectively prevent the inconvenience that the wood material moves due to the reaction force generated when cutting with the cutting rotor. As a result, the wood material can be cut stably, and cutting pieces such as sawdust and wood chips can be manufactured stably. Here, the weight of the first pressing rotor, the second pressing rotor, and the swing casing acts on the wood material conveyed by the conveying device, but the second pressing rotor is cut more than the driving wheel at the end of the conveying device. Since it is arranged on the rotor side, the weight acts in a distributed manner on the drive wheels and the feed rotor of the transport device, so that the inconvenience of damaging the transport device can be prevented. The weight of the second pressing rotor and the swinging casing mainly acts on the feed rotor disposed between the terminal end of the conveying device and the cutting rotor and positioned below the second pressing rotor. Since it can be effectively supported by being sandwiched between the rotor and the feed rotor, the wood material can be stably cut without the wood material being moved by the rotational force of the cutting rotor. Here, the rotation axis of the second pressing rotor only needs to be positioned closer to the cutting rotor than the rotation axis of the driving wheel at the end of the conveying device in plan view. Further, the feed rotor only needs to be positioned on the cutting rotor side with respect to the center axis of the drive wheel at the end of the transport device in a plan view. Moreover, the feed rotor located under the said 2nd press rotor should just overlap with a 2nd press rotor in planar view. In addition, a cut piece obtained by cutting a wood material with a cutting rotor has a dimension of 1 mm or more and 50 mm or less, and includes so-called wood chips in addition to sawdust. Here, in this specification, the dimension of the cut piece of wood material means the largest dimension obtained when the dimension of the cut piece is measured from all directions.

  In the sawdust manufacturing apparatus of one embodiment, the driving wheel at the end of the transport device is disposed between the first pressing rotor and the second pressing rotor in a plan view.

  According to the above embodiment, the weights of the first pressing rotor, the second pressing rotor, and the swing casing act in a distributed manner on the driving wheel and the feed rotor at the end of the conveying device, so that an excessive load is applied to the conveying device. It is possible to prevent inconvenience of being damaged by the action of

A sawdust manufacturing apparatus according to another aspect of the present invention includes a transporting device that transports an input wood material,
A cutting rotor which is disposed on the terminal end side of the conveying device and is rotationally driven with a rotary blade;
A fixed blade disposed close to the rotation path of the rotary blade of the cutting rotor;
A first pressing rotor that is rotationally driven in synchronization with the conveying device, and presses the wood material conveyed by the conveying device and sends it to the cutting rotor side;
A second pressing rotor that is driven to rotate in synchronization with the conveying device, is disposed closer to the cutting rotor than the first pressing rotor, and presses the wood material conveyed by the conveying device and sends it to the cutting rotor;
A swing support member pivotally attached to the rotation shaft of the second pressing rotor and supporting the first pressing rotor in a swingable manner;
The first pressing rotor and the second pressing rotor are covered, and the rotation shaft of the second pressing rotor is pivotally supported. On the other hand, the first pressing rotor and the second pressing rotor are swingably supported by a swinging shaft disposed on the input side of the transport device. A swinging casing,
A feed rotor that is rotationally driven in synchronization with the transport device, disposed between the end of the transport device and the cutting rotor, and that feeds the wood material transported by the transport device to the cutting rotor;
The first pressing rotor is formed so as to be supported at a lower end of the swing range of the first pressing rotor at a position farther from the conveying surface of the conveying device than the second pressing rotor. It is said.

  According to the said structure, the thrown-in wood material is conveyed toward the cutting rotor arrange | positioned at the terminal side of the conveying apparatus by the conveying apparatus. When the wood material conveyed by the conveying device reaches the first pressing rotor, the wooden material rides on the first pressing rotor that swings around the rotation axis of the second pressing rotor by the swing support member, and the weight of the first pressing rotor is increased. Is pressed. When the wood material is further conveyed to the cutting rotor side, the wood material rides on the second pressing rotor that swings around the swinging shaft together with the swinging casing, and the weight of the first pressing rotor, the second pressing rotor, and the swinging casing is increased. Pressed. At the same time, the wood material is fed to the cutting rotor side by the feed rotor disposed between the terminal end of the conveying device and the cutting rotor. Thus, the wood material conveyed by the conveying device is pressed by the first pressing rotor and the second pressing rotor that are rotationally driven in synchronism with the conveying device, is sent to the cutting rotor, and is rotationally driven in synchronism with the conveying device. Therefore, it is possible to effectively prevent the inconvenience that the wood material moves due to the reaction force generated when cutting with the cutting rotor. As a result, the wood material can be cut stably, and cutting pieces such as sawdust and wood chips can be manufactured stably. Here, when the wood material conveyed by the conveying device comes into contact with the first pressing rotor, the first pressing rotor is positioned at the lower end of the swinging range, and the first pressing rotor positioned at the lower end of the swinging range is The second pressing rotor is supported at a position farther from the conveying surface of the conveying device than the second pressing rotor. As a result, the first pressing rotor in contact with the wooden material is quickly moved away from the conveying surface of the conveying device, so that the wooden material is reliably guided between the conveying surface of the conveying device and the first pressing rotor. Can do. Therefore, it is possible to effectively prevent a pressing failure in which the wooden material collides with the first pressing rotor or the wooden material rides on the first pressing rotor. As a result, the wooden material can be stably pressed by the first pressing rotor and the second pressing rotor and sent to the cutting rotor, and a cut piece of the wooden material can be stably manufactured. When the wood material conveyed by the conveying device contacts the first pressing rotor, the second pressing rotor is positioned at the lower end of the swing range that swings together with the swing casing. In addition, a cut piece obtained by cutting a wood material with a cutting rotor has a dimension of 1 mm or more and 50 mm or less, and includes so-called wood chips in addition to sawdust. Here, in this specification, the dimension of the cut piece of wood material means the largest dimension obtained when the dimension of the cut piece is measured from all directions.

  In the sawdust manufacturing apparatus according to an embodiment, the first pressing rotor is defined by a lower end of a slit in which the lower end of the swing range is formed in the swing casing and the rotation shaft of the first press rotor is inserted. On the other hand, the upper end of the swing range is defined by a locking tool fixed to the swing casing and locked to the swing support member.

  According to the embodiment, the lower end of the swing range by the swing support member of the first press rotor is defined by the rotating shaft of the first press rotor contacting the lower end of the slit formed in the swing casing. The Here, the rotation shaft of the first pressing rotor is inserted into at least the slit and contacts the lower and upper ends of the slit to transmit a load, and a sleeve surrounding the rotation shaft and a bearing that rotatably supports the rotation shaft. In addition, it is preferable to have a support shaft that extends in the extending direction of the rotating shaft via a bearing. When the first pressing rotor is located at the lower end of the swing range by the swing support member, the first pressing rotor can be supported sufficiently by the lower end of the slit because it is sufficient to support the mass of the first pressing rotor. On the other hand, when the swing support member that supports the first pressing rotor is locked to a locking tool fixed to the swing casing, the upper end of the swing range by the swing support member of the first press rotor is defined. The When the first pressing rotor is positioned at the upper end of the swing range by the swing support member, the total mass of the first press rotor, the second press rotor, and the swing casing acts as the maximum load. It is necessary to lock the first pressing rotor with a locking tool fixed to. In this way, the swing range by the swing support member of the first pressing rotor is defined by the lower end of the slit formed in the swing casing and the locking tool, thereby maintaining high durability with a simple structure. However, the first pressing rotor can be appropriately swung. Furthermore, when the first pressing rotor reaches the upper end of the swing range by the swing support member, the swing casing can be swung by a force in a direction away from the conveying surface that further acts on the first press rotor. it can.

  In the sawdust manufacturing apparatus of one embodiment, a weight for increasing a pressing force to the wood material by the first pressing rotor and / or the second pressing rotor is attached to the swing casing.

  According to the above embodiment, when the first pressing rotor rides on the wooden material conveyed by the conveying device and reaches the upper end of the rocking range by the rocking support member, and further climbs on the wooden material, the rocking about the rocking axis is performed. The moving casing swings, and the mass of the first pressing rotor, the second pressing rotor, and the swinging casing acts on the wooden material as pressing force. Further, when the second pressing rotor rides on the wooden material conveyed by the conveying device after the first pressing rotor rides, and the swing casing swings around the swing shaft, the first pressing rotor is placed on the wooden material. The mass of the second pressing rotor and the swing casing acts as a pressing force. Here, since a weight is attached to the swing casing, a sufficient pressing force can be applied to the wood material. As a result, the wood material can be stably cut with the cutting rotor without the wood material being moved by the reaction force, and cutting pieces such as sawdust and wood chips can be stably produced.

  The sawdust manufacturing apparatus according to an embodiment includes a shock absorber that cushions a swinging motion around the swing shaft of the swing casing.

  According to the above-described embodiment, since the swinging operation of the swing casing around the swing shaft is buffered by the shock absorber, the first press rotor and the second press rotor ride on the wood material and the swing casing swings. The impact at the time can be suppressed. Therefore, it is possible to effectively prevent damage to the components of the sawdust manufacturing apparatus such as the conveying device, the first pressing rotor, the second pressing rotor, and the swing casing. Here, as the shock absorber, a fluid cylinder such as a hydraulic cylinder or an air cylinder, or an elastic body such as a coil spring or a leaf spring can be employed. When a fluid cylinder is employed as the shock absorber, the swing casing can be driven to open and close by the fluid cylinder by flowing the working fluid in the opening direction of the swing casing. Therefore, inspection and maintenance of the first pressing rotor, the second pressing rotor, the transport device, the feed rotor, and the like in the swing casing can be easily performed.

  In the sawdust manufacturing apparatus according to an embodiment, the transport device and the feed rotor are driven by the same motor, and the rotation shaft connected to the drive wheel of the transport device is substantially collinear with the output shaft of the motor. And the rotation shaft of the feed rotor is disposed adjacent to and parallel to the output shaft of the motor and connected to the output shaft via a power transmission mechanism. .

  According to the embodiment, since the transport device and the feed rotor are driven by the same motor, the transport device and the feed rotor can be easily synchronized. In addition, since the rotation shaft connected to the drive wheel of the conveying device is arranged substantially on the same straight line as the output shaft of the motor and is connected to the output shaft, it is pressed by the first and second pressing rotors. A driving force can be stably applied to a conveying device that conveys the woody material. Here, the rotating shaft connected to the drive wheel and the output shaft of the motor are connected, for example, by coupling or directly. In addition, since the rotation shaft of the feed rotor is arranged in parallel and adjacent to the output shaft of the motor and is connected via a power transmission mechanism, a driving force can be stably given to the feed rotor, and the woody Material can be effectively fed to the cutting rotor with a feed rotor. Here, the power transmission mechanism that transmits the rotational force from the output shaft of the motor to the rotational shaft of the feed rotor transmits the rotational force in the forward rotation direction by, for example, a chain mechanism or a belt mechanism.

  In the sawdust manufacturing apparatus according to an embodiment, the conveying device, the first pressing rotor, and the second pressing rotor are driven by the same motor, and a rotating shaft connected to a driving wheel of the conveying device is an output shaft of the motor. And the rotation shaft of the second pressing rotor is arranged in parallel with the output shaft of the motor and is connected to the output shaft. It is connected to the output shaft through a power transmission mechanism passing through.

  According to the above embodiment, since the transport device, the first pressing rotor, and the second pressing rotor are driven by the same motor, the transport device and the first and second pressing rotors can be easily synchronized. In addition, since the rotation shaft connected to the drive wheel of the conveying device is arranged substantially on the same straight line as the output shaft of the motor and is connected to the output shaft, it is pressed by the first and second pressing rotors. A driving force can be stably applied to a conveying device that conveys the woody material. Here, the rotating shaft connected to the drive wheel and the output shaft of the motor are connected, for example, by coupling or directly. Further, since the rotation shaft of the second pressing rotor is connected to the output shaft via a power transmission mechanism that is arranged in parallel with the output shaft of the motor and passes through the swing shaft of the swing casing, The second pressing rotor can be driven in synchronism with the transport device with a relatively simple configuration using a swinging shaft that swings. Here, the power transmission mechanism that transmits the rotational force from the output shaft of the motor to the rotational shaft of the second pressing rotor includes, for example, a mechanism that transmits rotational force in the forward rotation direction such as a chain mechanism and a belt mechanism, and a gear mechanism and the like. It is connected in combination with a mechanism that transmits the rotational force in the reverse direction.

  In the sawdust manufacturing apparatus according to an embodiment, the rotation shaft of the first pressing rotor is arranged in parallel to the rotation shaft of the second pressing rotor and is connected to the rotation shaft of the second pressing rotor via a power transmission mechanism. Has been.

  According to the said embodiment, a 1st press rotor can be easily synchronized with a conveying apparatus via a 2nd press rotor. Here, the rotating shaft of the first pressing rotor and the rotating shaft of the second pressing rotor are connected as a power transmission mechanism using a mechanism that transmits a rotational force in the forward rotation direction, such as a chain mechanism or a belt mechanism.

In one embodiment of the sawdust manufacturing apparatus, the cutting rotor is
A rotation axis;
A plurality of disk-shaped support plates that are externally fitted to the rotating shaft;
A plate-like rotary blade fitted in a mounting groove formed on the outer periphery of the support plate;
A bolt head that is screwed onto the end face of the rotary blade and abuts against the bottom of the mounting groove, and the amount of protrusion of the rotary blade from the support plate is adjusted by adjusting the screwing length to the rotary blade. Adjustable bolts,
A wedge-shaped fixture that is disposed adjacent to the rotary blade and presses and fixes the rotary blade against a side surface of the mounting groove.

  According to the above embodiment, the cutting rotor has a plurality of disk-shaped support disks fitted on the rotation shaft, and a plate-shaped rotary blade is fitted in the mounting groove formed on the outer periphery of the support disk. It is formed. In this rotary blade, an adjustment bolt having a bolt head that contacts the bottom of the mounting groove is screwed to the end face, and the screwing length of this adjustment bolt is adjusted, so that the amount of protrusion from the support plate can be adjusted. It has become. The rotary blade is pressed and fixed to the side surface of the mounting groove by a wedge-shaped fixture disposed adjacently. The cutting rotor is preferably formed such that the positions of the plurality of support plates with respect to the rotation axis can be adjusted, and the circumferential position of the rotary blade provided on the support plate can be adjusted. Thereby, the arrangement | positioning shape of the rotary blade in the surrounding surface of a cutting rotor can be set, for example to a spiral shape or V shape, and the timing which each rotary blade cuts woody material can be shifted. As a result, the reaction force acting on the transport device, the first and second pressing rotors, the feed rotor, and the cutting rotor can be reduced, and the burden on the motor that drives these can be reduced. Further, the burden on the motor that drives the cutting rotor can be reduced. Moreover, when the said fixing tool is arrange | positioned in contact with the surface continued to the blade edge | tip of a rotary blade, it is preferable that the part which touches a rotary blade makes an acute angle in side view. By forming the portion of the fixture that contacts the rotary blade at an acute angle, the fixture can function as a back blade for the rotary blade. Therefore, it is possible to obtain a cutting rotor that can stably cut a wood material with a small number of parts.

In one embodiment of the sawdust manufacturing apparatus, the cutting rotor is
A rotation axis;
A plurality of support plates that are externally fitted to the rotating shaft and in which two opposing disks are fixed to each other;
An L-shaped attachment member that connects the two disks of the support plate and forms an attachment groove that extends to the outer periphery of the support plate;
A plate-like rotary blade fitted in the mounting groove;
A bolt head that is screwed onto the end face of the rotary blade and abuts against the bottom of the mounting groove, and the protruding length of the rotary blade from the support plate is adjusted by adjusting the screwing length to the rotary blade. Adjustable bolts,
And a fixing bolt that is inserted into a through hole formed in the rotary blade and is screwed into a bolt hole formed in the mounting member to fix the rotary blade to the mounting member.

  According to the above embodiment, the cutting rotor is formed by externally fitting a plurality of support disks, each having two opposing disks fixed to each other, to the rotating shaft. The support plate is formed by connecting two disks with an L-shaped attachment member and has an attachment groove formed on the outer periphery, and a plate-like rotary blade is fitted into the attachment groove. In this rotary blade, an adjustment bolt having a bolt head that contacts the bottom of the mounting groove is screwed to the end face, and the screwing length of this adjustment bolt is adjusted, so that the amount of protrusion from the support plate can be adjusted. It has become. The rotary blade is formed with a through hole, and a fixing bolt inserted through the through hole is screwed into a bolt hole formed in the mounting member and fixed to the mounting member. The cutting rotor is preferably formed such that the positions of the plurality of support plates with respect to the rotation axis can be adjusted, and the circumferential position of the rotary blade provided on the support plate can be adjusted. Thereby, the timing at which each rotary blade cuts the wood material can be shifted by setting the arrangement shape of the rotary blades on the peripheral surface of the cutting rotor, for example, in a spiral shape or a V shape. As a result, the reaction force acting on the transport device, the first and second pressing rotors, the feed rotor, and the cutting rotor can be reduced, and the burden on the motor that drives these can be reduced. Further, the burden on the motor that drives the cutting rotor can be reduced.

In one embodiment of the sawdust manufacturing apparatus, the cutting rotor is
A rotation axis;
A plurality of substantially circular support plates that are externally fitted to the rotating shaft;
A rotary blade that is fitted in a mounting groove formed on the outer peripheral portion of the support plate and is formed by a cutting blade and a back blade,
It is in contact with the surface of the cutting edge of the rotary blade and is fitted into the mounting groove of the support plate, and is inserted into a bolt that is screwed to the support plate through the long hole and / or groove formed in the rotary blade. A fixing member that is fixed in place,
A nut that is screwed into an end face of the cutting blade of the rotary blade, is inserted into an insertion hole formed in the chord direction from the mounting groove of the support plate, and contacts an opening on the opposite side of the mounting groove of the insertion hole of the support plate A tensile member into which a tensile force is introduced by
An adjustment bolt that has a bolt head that abuts the bottom of the mounting groove and is capable of adjusting the amount of protrusion of the cutting blade from the support plate by adjusting the screwing length of the rotary blade to the cutting blade; ,
Screwed into the end face of the back blade of the rotary blade and passed through the insertion hole formed in the projection protruding into the mounting groove, the bolt head is in contact with the opening of the projection hole of this projection, and the tensile force is In addition to being introduced, a tension adjusting bolt capable of adjusting a protruding amount of the back blade from the support plate by adjusting a screwing length to the back blade.

  According to the above embodiment, the cutting rotor is attached by fitting the rotary blade formed by the cutting blade and the back blade into the mounting groove on the outer periphery of the support board. The rotary blade is fixed by a fixing member that comes into contact with the surface of the cutting blade of the rotary blade and fits into the mounting groove, and a bolt that is inserted into the fixing member and the rotary blade and screwed to the support board. The cutting blade and the back blade of the rotary blade have a long hole and / or groove inserted through the bolt, and thus can advance and retreat in the extending direction of the long hole and / or groove, and protrude from the support plate. The amount is fixed to be adjustable. The cutting blade of the rotary blade is given a tensile force by a tension member screwed to the end face, and is prevented from falling off during rotation. Further, the cutting blade of the rotary blade is screwed to an adjustment bolt having a bolt head that contacts the bottom of the mounting groove, and the screwing length of the adjustment bolt to the cutting blade is adjusted, whereby the cutting blade The amount of protrusion from the support plate can be adjusted. On the other hand, the back blade of the rotary blade is given a tensile force by a tension adjusting bolt that is screwed to the end face, and is prevented from falling off during rotation. The tension adjusting bolt is inserted into an insertion hole formed in a projection protruding into the mounting groove, and a bolt head is brought into contact with an opening of the insertion hole of the projection to introduce a tensile force. At the same time, the amount of protrusion of the back blade from the support plate can be adjusted by adjusting the screwing length of the tension adjusting bolt to the back blade. In this cutting rotor, by forming the rotary blade with a cutting blade and a back blade, the wood material can be stably cut to a predetermined size, and sawdust and wood chips with little variation in size can be manufactured. The cutting rotor is preferably formed such that the positions of the plurality of support plates with respect to the rotation axis can be adjusted, and the circumferential position of the rotary blade provided on the support plate can be adjusted. Thereby, the timing at which each rotary blade cuts the wood material can be shifted by setting the arrangement shape of the rotary blades on the peripheral surface of the cutting rotor, for example, in a spiral shape or a V shape. As a result, the reaction force acting on the transport device, the first and second pressing rotors, the feed rotor, and the cutting rotor can be reduced, and the burden on the motor that drives these can be reduced. Further, the burden on the motor that drives the cutting rotor can be reduced.

  The sawdust manufacturing apparatus of one embodiment is arranged on the opposite side to the side on which the wood material is introduced so as to follow the outer periphery of the rotation path of the cutting rotor, and passes through a piece of wood material smaller than a predetermined size. A sieve body is provided.

  According to the above-described embodiment, if the cut piece formed by cutting the wood material with the cutting rotor is larger than the predetermined dimension, the cutting piece cannot pass through the sieve body and remains between the sieve body and the cutting rotor, and along the cutting rotor. Guided to a fixed blade. The cutting piece is guided to the fixed blade, cut by the action of the rotary blade, and when it is smaller than a predetermined size, it is discharged through this sieve body. Thus, the size of the cut piece of the woody material can be effectively made uniform by the sieve that allows the cut piece smaller than the predetermined size to pass through.

As for the sawdust manufacturing apparatus of one embodiment, the conveying device is
A transport plate whose center in the cross section in the transport direction bulges to the placement surface side of the transported object, and is provided at an edge of the transport plate and protrudes to the opposite side of the bulge direction of the center. A conveyor belt including a hinge-shaped coupling portion to be coupled, and a latching portion that is provided on the placement surface of the conveyance plate and latches to the wood material;
A sprocket that has a trough that fits in the connecting portion of the conveyor belt and a tooth that fits in the back surface of the conveyor plate and that is driven to rotate and conveys the conveyor belt;

  According to the embodiment, the transport device has the transport belt on which the wood material is placed and transported, and the sprocket that is wound around the transport belt and drives the transport belt. The transport belt includes a transport plate whose center is bulged toward the placement surface in a cross section in the transport direction, and is provided at an edge of the transport plate and protrudes on the opposite side to the bulge direction of the center. It has a hinge-shaped connecting part that connects the plates. As a result, even if the conveyor belt is bent at the part in contact with the sprocket, there is almost no gap between the conveyor plates. Therefore, there are inconveniences of cutting pieces of wood material or cutting chips between the conveyor plates, and conveyance through the clearance of the conveyor plate. It is possible to prevent the inconvenience of a wood material cutting piece or cutting waste entering the apparatus. In addition, the wood material can be locked by the locking portion provided on the mounting surface of the transfer plate and reliably transferred toward the cutting rotor. In addition, since the sprocket has a valley portion that fits to the connecting portion of the conveyor belt and a tooth portion that fits to the back surface of the conveyor plate, the sprocket can be effectively fitted to the conveyor belt and slips on the conveyor belt. The driving force can be transmitted without fail.

  The sawdust manufacturing apparatus according to an embodiment includes a carry-out device that is disposed at least below the terminal portion of the transfer device and the cutting rotor, and carries a cutting piece formed by cutting the wood material.

  According to the said embodiment, the cut piece of the wood material cut | disconnected with the cutting rotor can be carried out from a sawdust manufacturing apparatus without a leak with a carrying-out apparatus.

The sawdust manufacturing apparatus of one embodiment covers the cutting rotor, and at least a cutting casing formed to be openable and closable,
And a scaffold disposed around the cutting rotor and formed to allow a cutting piece formed by cutting the wood material with the cutting rotor to be transmitted therethrough.

  According to the above-described embodiment, when at least a part of the cutting rotor of the cutting casing is opened, an operator can enter the cutting casing from the opened portion, and the worker can easily cut by placing his feet on the scaffold. Can approach the rotor. Therefore, the cutting rotor can be easily maintained. Further, with respect to the first pressing rotor and the second pressing rotor that are located on the upstream side in the conveying direction of the wood material with respect to the cutting rotor, the swing casing that houses the first pressing rotor and the second pressing rotor is swung. Thereby, the worker who exists on the scaffold can easily access the first pressing rotor and the second pressing rotor. Therefore, maintenance of the first pressing rotor and the second pressing rotor can be easily performed. Here, since the above-mentioned scaffold is formed so that the cutting piece formed by cutting the wood material with the cutting rotor can be transmitted, the cutting piece is retained or clogged despite being arranged around the cutting rotor. Can be prevented. As the scaffold, a mesh body having a mesh size through which the cutting piece can pass, a punching metal provided with a through-hole through which the cutting piece can pass, and a separation through which the cutting piece can pass are arranged in parallel. It can be formed of a plurality of rod-like bodies.

It is a schematic diagram which shows the sawdust manufacturing apparatus of embodiment of this invention. It is a longitudinal cross-sectional view of a sawdust manufacturing apparatus. It is a plane sectional view of a sawdust manufacturing apparatus. It is a plane sectional view in the vicinity of the conveyor of the sawdust manufacturing apparatus. It is a cross-sectional view of a sawdust manufacturing apparatus. It is sectional drawing which shows the conveyance belt of a conveyance conveyor. It is a perspective view which shows the conveyance board which comprises the conveyance belt of a conveyance conveyor. It is a figure which shows the conveyance belt and sprocket of a conveyance conveyor. It is a front view which shows a cutting rotor. It is a figure which shows the rotor disk which comprises a cutting rotor. It is a side view which shows a cutting blade. It is a top view which shows a cutting blade. It is a side view which shows a fixing tool. It is a top view which shows a fixing tool. It is a figure which shows both the helical axes which screw a fixing tool on a support disk. It is a schematic diagram which shows the operation | movement condition of a sawdust manufacturing apparatus. It is a schematic diagram which shows the other operating condition of sawdust manufacturing apparatus. It is a schematic diagram which shows the operation | movement condition following FIG. 15A of a sawdust manufacturing apparatus. It is a schematic diagram which shows the operation | movement condition following FIG. 15B of a sawdust manufacturing apparatus. It is a schematic diagram which shows the maintenance condition of a sawdust manufacturing apparatus. It is a figure which shows the other example of a rotor disk. It is sectional drawing which shows the rotor disk of FIG. It is a side view which shows a cutting blade. It is a top view which shows a cutting blade. It is a side view which shows a back blade. It is a top view which shows a back blade. It is a front view which shows the cutting rotor formed using the rotor disk of FIG. It is a front view which shows the other arrangement | sequence form of the rotary blade in a cutting rotor. It is a figure which shows the further another example of a rotor disk. It is a front view which shows the cutting rotor formed with the rotor disk of FIG.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  The sawdust manufacturing apparatus according to the embodiment of the present invention is a sawdust manufacturing apparatus that cuts woody materials such as thinned wood, pruned wood, and wood scrap, and manufactures sawdust and wood chips as cutting pieces. Drawing 1 is a mimetic diagram showing the sawdust manufacturing device of an embodiment. This sawdust manufacturing apparatus 1 includes a transport conveyor 2 as a transport apparatus that transports the input wood material, and a pressing unit 3 that presses the wood material transported by the transport conveyor 2 and further transports it toward the cutting rotor 52. And a cutting unit 5 for cutting the wood material pressed and conveyed by the pressing unit 3 and a carry-out conveyor 7 as a carry-out device for carrying out the sawdust produced by cutting the wood material by the cutting unit 5.

  The conveyor 2 includes a conveyor belt 21 having an engaging portion that engages with a wood material, a sprocket 22 that drives the conveyor belt 21, and a support roller 23 that supports the conveyor belt. The conveyor belt 21 and the sprocket 22 will be described in detail later.

  FIG. 2 is a longitudinal sectional view showing a main part including the pressing part 3 and the cutting part 5 of the sawdust manufacturing apparatus 1, and FIGS. 3 and 4 are plan sectional views of the main part of the sawdust manufacturing apparatus 1. FIG. 5 is a cross-sectional view of the main part of the sawdust manufacturing apparatus 1.

  The pressing unit 3 is provided in the second half of the conveyor 2, and has a first pressing rotor 41 disposed above the placement surface on which the conveyed object of the conveying belt 21 is placed, and the first pressing rotor 41. A second pressing rotor 42 disposed on the cutting rotor 52 side, a swing casing 31 to which the first pressing rotor 41 and the second pressing rotor 42 are attached, and a feed rotor provided below the second pressing rotor 42 43.

  The first pressing rotor 41 is formed with a saw-like locking blade whose tip is inclined in the rotational direction when viewed in the axial direction on the peripheral surface, and the portion facing the conveyor 2 is the conveyor belt 21 of the conveyor 2. Are driven to rotate in the same direction. Similar to the first pressing rotor 41, the second pressing rotor 42 has a saw-like locking blade whose tip end is inclined in the rotational direction when viewed in the axial direction, and faces the conveyor 2. The portion is driven to rotate so as to proceed in the same direction as the conveyor belt 21 of the conveyor 2. The rotation shaft 411 of the first pressing rotor 41 is supported by a swing frame 45 as a swing support member, and this swing frame 45 is attached so as to be swingable around the rotation shaft 421 of the second press rotor 42. It has been. The swing frame 45 swings around the rotation shaft 421 as the first pressing rotor 41 climbs on the wood material and rises. When the swing angle reaches a predetermined upper limit angle, the inner surface of the swing casing 31 is swung. The stopper 46 is fixed to the stopper 46 so as to be locked.

  The swing casing 31 has a substantially rectangular shape when viewed from the side, and has a substantially gate shape when viewed from the input side of the conveyor 2. The oscillating casing 31 accommodates the first pressing rotor 41 and the second pressing rotor 42, and is disposed so as to cover the surface of the rear half portion of the conveyor 2 and the upper end portion of the feed rotor 43. A rotating shaft 421 of the second pressing rotor 42 is pivotally attached to a portion near the cutting portion 5 of the swing casing 31. The rotating shaft 421 of the second pressing rotor 42 is attached so as to penetrate both side surfaces of the swing casing 31 by bearings provided on both side surfaces of the swing casing 31. On one side surface of the swing casing 31, a swing slit 311 is formed along the swing path of the rotation shaft 411 of the first pressing rotor 41, and the rotation of the first pressing rotor 41 is performed from the swing slit 311. A shaft 411 protrudes. The rotating shaft 411 of the first pressing rotor 41 is in contact with the lower end of the swinging slit 311 so that the lower end of the swinging range of the first pressing rotor 41 is defined. The rotating shaft 411 is provided with a sleeve for protecting the rotating shaft 411 and transmitting a load at a portion in contact with the lower end of the swing slit 311. The swing casing 31 is supported so as to be swingable around the swing shaft 32 by a swing shaft 32 penetratingly provided in the upper part on the input side of the transport conveyor 2. The swing shaft 32 is formed to be rotatable by a bearing fixed to the swing casing 31. The swing shaft 32 is provided between the inner side surface of the swing casing 31 and both side surfaces of the transport conveyor 2, and has two support frames 47 each having a protruding portion 47 a that protrudes upward when the transport conveyor 2 is loaded. The protrusion 47a is rotatably supported via a bearing. The swing shaft 32 is provided so as to penetrate both side surfaces of the swing casing 31. An upper bracket 33 is provided at the upper end corner portion of the swing casing 31 located on the input side of the conveyor 2, while a lower bracket 36 is provided on the lower frame of the sawdust manufacturing apparatus 1. A hydraulic cylinder 34 is provided between the upper bracket 33 and the lower bracket 36. The hydraulic cylinder 34 is formed to provide a buffering action when the swing casing 31 swings around the swing shaft 32. Further, when the hydraulic cylinder 34 contracts, the swing casing 31 swings around the swing shaft 32, and the cutting rotor 52, the feed rotor 43, and the latter half portion of the transport conveyor 2 are exposed. Maintenance is possible.

  The feed rotor 43 is disposed below the second pressing rotor 42 and on the side close to the cutting rotor 52, and is disposed adjacent to the end of the transport conveyor 2. The feed rotor 43 includes a cylindrical rotor main body 431 and a plurality of rectangular parallelepiped locking rods 432 arranged on the outer peripheral surface of the rotor main body 431. The locking rod 432 may have a conical shape or a triangular pyramid shape other than a rectangular parallelepiped, and the shape is not particularly limited as long as the locking rod 432 can be locked to the wood material transported by the transport conveyor 2 and sent toward the cutting rotor 52.

  The said 1st press rotor 41, the 2nd press rotor 42, the conveyance conveyor 2, and the feed rotor 43 are driven by the single motor M via a feed drive mechanism. The feed drive mechanism includes a drive shaft 221 of the sprocket 22 on the terminal end side of the conveyor 2 connected to the output shaft 44 of the motor M via a roller chain coupling 441, and a gear transmission mechanism 81 connected to the drive shaft 221. The relay shaft 48 connected to the gear transmission mechanism 81, a sprocket 481 provided at one end of the relay shaft 48, and the sprocket 481 of the relay shaft 48 connected to the sprocket 481 via a chain. A sprocket 321 provided at one end, a sprocket 322 provided at the other end of the swing shaft 32, and a sprocket 322 at the other end of the swing shaft 32 are connected via a chain to A sprocket 423 provided at the other end of the rotating shaft 421 and a sprocket provided at one end of the rotating shaft 421 of the second pressing rotor 42. And 422, and a sprocket 412 provided at one end of the rotary shaft 411 of the first pressing rotor 41 to the sprocket 422 at one end are connected via a chain of the rotation shaft 421 of the second pressing rotor 42. Further, this feed drive mechanism is connected to the sprocket 222 provided at the tip of the drive shaft 221 of the conveyor 2 connected to the output shaft 44 of the motor M, and the feed rotor 43 connected to the sprocket 222 via a chain. A sprocket 434 provided at the other end of the rotary shaft 433 is provided.

  This feed drive mechanism operates as follows. First, the rotational force of the motor M is transmitted from the output shaft 44 to the drive shaft 221 via the roller chain coupling 441, and the conveyor 2 is driven. At the same time, the rotational force of the drive shaft 221 is transmitted to the relay shaft 48 with the rotational direction reversed by the gear transmission mechanism 81, and the rotational force of the relay shaft 48 is oscillated through the sprockets 481, 321 and the chain. 32. The rotational force of the oscillating shaft 32 is transmitted to the rotating shaft 421 of the second pressing rotor 42 via the sprockets 322 and 423 and the chain, and the second pressing rotor 42 is conveyed to the conveyor belt 21 at a portion facing the conveyor 2. Is driven to rotate in the same direction as the driving direction. The rotational force of the rotating shaft 421 of the second pressing rotor 42 is transmitted to the rotating shaft 411 of the first pressing rotor 41 via the sprockets 422, 412 and the chain, and the first pressing rotor 41 is connected to the second pressing rotor 42. Similarly, at the portion facing the conveyor 2, it is rotationally driven in the same direction as the driving direction of the conveyor belt 21. The rotational force transmitted from the output shaft 44 of the motor M to the drive shaft 221 is transmitted to the rotational shaft 433 of the feed rotor 43 through the sprockets 222 and 434 and the chain, whereby the feed rotor 43 is terminated at the end of the conveyor 2. The sprocket 22 is rotated in the same direction.

  6 is a cross-sectional view showing the transport belt 21 of the transport conveyor 2, FIG. 7 is a perspective view showing the transport plate 211 constituting the transport belt 21 of the transport conveyor 2, and FIG. It is a figure which shows the conveyance belt 21 and the sprocket 22. This conveyor 2 conveys the wood material thrown into one end, guides it to the pressing part 3, and cuts while holding the wood material in cooperation with the first pressing rotor 41 and the second pressing rotor 42 by the pressing part 3. It has a function to send to the unit 5. The transport belt 21 of the transport conveyor 2 is formed by connecting a plurality of transport plates 211 in a hinged manner to each other by a plurality of connecting shafts 214. The conveyance plate 211 is fixed to the conveyance plate main body 212 that is curved so that the center of the placement surface on which the wooden material that is the conveyance object is placed bulges to form a convex surface, and the top of the convex surface of the conveyance plate main body 212. .. As a plurality of rectangular parallelepiped locking portions, and alternately provided in the longitudinal direction on both sides of the transport plate body 212, on the opposite side of the convex surface of the transport plate body 212. .. And the protruding cylindrical hinge sleeves 213, 213,... And a plurality of flange-shaped reinforcing ribs 216, 216,. Have. The hinge sleeve 213 and the connecting shaft 214 constitute a connecting portion that connects the conveying plate 211. Since the conveyor belt 21 is formed by connecting a plurality of conveyor plates 211 in a hinge shape, dust adhering to the wooden material to be conveyed, cutting waste of the wooden material, etc. are caught between the conveyor plates 211. Can be effectively prevented, and the wood material can be stably conveyed. The sprocket 22 of the transport conveyor 2 includes a trough 223 into which the hinge sleeve 213 and the connecting shaft 214 are fitted, and a tooth portion 222 to be fitted into the back surface which is a concave surface of the transport plate 211. In the transport plate 211, the sprocket tooth portion 222 engages with the concave surface of the transport plate main body 212, and the hinge sleeve 213 and the connecting shaft 214 engage with the valley portion 223 of the sprocket 22. This ensures that the driving force is transmitted from the sprocket 22 to the conveyor belt 21 without slipping.

  FIG. 9 is a front view showing the cutting rotor 52. FIG. 10 is a view showing a rotor disk 53 constituting the cutting rotor 52 provided in the cutting part 5. FIG. 11A is a side view showing a cutting blade 55 as a rotary blade mounted on the support plate 54 of the rotor disk 53, and FIG. 11B is a plan view of the cutting blade 55. FIG. 12A is a side view showing a fixture 56 that fixes the cutting blade 55 to the support board 54, and FIG. 12B is a plan view of the fixture 56. FIG. 13 is a view showing both helical shafts 57 for screwing the fixture 56 to the support board 54.

  The cutting part 5 includes a cutting casing 51 provided adjacent to the swing casing 31 of the pressing part 3, a cutting rotor 52 accommodated in the cutting casing 51, and a screen 63 as a sieve body surrounding the cutting rotor 52. And the fixed blade 61 arrange | positioned adjacent to the feed rotor 43 of the press part 3 is provided.

  The cutting rotor 52 is formed by arranging a plurality of rotor disks 53 so as to be fitted around a single drive shaft 521. The rotor disk 53 includes a support plate 54 formed of a substantially disk-shaped plate material, a cutting blade 55 that is a plurality of rotary blades fixed to the outer peripheral portion of the support plate 54, and the cutting blade 55 as a support plate 54. It has the wedge-shaped fixing tool 56 to fix.

  As shown in FIG. 10 as viewed from the axial direction, the support plate 54 has a narrow blade groove 54a into which the cutting blade 55 is inserted, and a wide space into which the fixture 56 is inserted in a side portion of the blade groove 54a. A fixed groove 54b having a width is provided. The outer peripheral edge of the support board 54 has a shape in which the diameter gradually decreases from the opening on the side opposite to the side of the blade groove 54a connected to the fixed groove 54b toward the fixed groove 54b connected to the adjacent blade groove 54a.

  As shown in FIG. 11, the cutting edge 55 has a cutting edge 551 provided at an acute angle portion of one end face and an adjustment spiral hole 552 provided on the other end face. An adjustment bolt 58 that adjusts the amount of protrusion of the cutting blade 55 from the support plate 54 is screwed into the adjustment spiral hole 552. The cutting blade 55 to which the adjustment bolt 58 is screwed is inserted into the blade groove 54a, and the bolt head of the adjustment bolt 58 contacts the bottom surface of the blade groove 54a. By changing the screwing length of the adjusting bolt 58 to the cutting edge 55, the length of the cutting edge 55 protruding from the opening of the blade groove 54a of the support board 54 is changed. The screwing length of the adjustment bolt 58 to the cutting blade 55 is fixed by a nut 59 that is screwed into the adjustment bolt 58 and contacts the other end surface of the cutting blade 55.

  As shown in FIG. 12, the fixture 56 has a wedge shape whose thickness decreases from one end surface to the other end surface. One end surface of the fixture 56 exposed to the outer peripheral surface of the crushing rotor 52 when fixed to the support plate 54 is formed as a curved surface that is further away from the other end surface toward the side in contact with the cutting blade 55. Thereby, the part which touches the cutting blade 55 of the fixing tool 56 is formed so as to form an acute angle in a side view, and is formed so as to function also as a back blade. In addition, you may form one end surface of a fixing tool in a plane. A spiral hole 561 is formed between one end face and the other end face of the fixing tool 56, in which both helical shafts 57 for fixing the fixing tool 56 to the support board 54 are screwed.

  As shown in FIG. 13, both the spiral shafts 57 are screwed into a first spiral portion 571 that is screwed into the spiral hole 561 of the fixture 56 and a spiral hole 54 c provided in the bottom surface of the fixing groove 54 b of the support board 54. And a second spiral portion 572. The first spiral portion 571 and the second spiral portion 572 are formed on both sides of both the spiral shafts 57 with a shaft portion without a central spiral groove therebetween. The first spiral portion 571 and the second spiral portion 572 are provided with spiral grooves that turn in opposite directions. In FIG. 13, the shape of the spiral groove is not shown. A hexagonal hole 573 into which a hexagonal wrench that rotates both the helical shafts 58 is fitted is provided on the end surface of the both helical shafts 58 on the side to be screwed with the fixture 56. By using the two spiral grooves 58 having the first spiral portion 571 and the second spiral portion 572 provided with spiral grooves in opposite directions, the fixture 56 does not protrude as in the case of using a bolt or the like. It can be firmly fixed to the support board 54.

  As shown in FIG. 9, the plurality of rotor disks 53 are arranged on the drive shaft 521 by shifting the circumferential positions of the cutting blades 55 so that the cutting blades 55 traverse the outer peripheral surface of the cutting rotor 52 in the spiral direction. Fixed. Thereby, the timing at which the cutting blade 55 of the cutting rotor 52 contacts the wood material can be shifted, and the load on the motor that rotationally drives the cutting rotor 52 can be reduced. Note that the arrangement shape of the cutting blades 55 on the outer peripheral surface of the cutting rotor 52 may be a V shape or the like that forms a corner at the center in the axial direction in addition to the spiral shape.

  In the cutting rotor 52, the peripheral speed of the cutting rotor 52 and the protruding amount of the rotary blade are adjusted according to the size of a cutting piece obtained by cutting the wood material. For example, when the cut piece to be produced is sawdust having a size of 1 to 5 mm, the peripheral speed of the cutting rotor 52 is preferably set to 18 to 35 m / sec, and particularly preferably about 22 m / sec. The tip of the cutting blade 55 of the rotary blade is set so as to protrude 3 mm from the maximum outer diameter of the support plate 54 of the cutting rotor 52. On the other hand, when the cut piece to be manufactured is a wood chip having a size of 5 to 50 mm, it is preferable to set the peripheral speed of the cutting rotor 52 to 7 to 25 m / sec, and particularly preferably about 13 m / sec. The tip of the cutting blade 55 of the rotary blade is set so as to protrude 5 to 40 mm from the maximum outer diameter of the support plate 54 of the cutting rotor 52. The peripheral speed of the cutting rotor 52 is adjusted by controlling the number of revolutions of a motor that drives the cutting rotor 52. The number of rotations of the motor can be controlled by changing the number of poles by adjusting the connection of the stator winding using a pole number conversion motor that can convert the number of poles of the stator. The number of rotations of the child can be changed. As the pole conversion motor, the stator can be changed between 4 and 8 poles, the stator can be changed between 4 and 6 poles, and the stator can be changed between 6 and 10 poles Can be adopted. Moreover, the rotation speed of an AC motor can be changed using an AC motor and an inverter that adjusts the frequency of power supplied to the AC motor. Moreover, you may change the rotation speed by adjusting the frequency of the electric power supplied to a brushless motor using a brushless motor and an inverter. The clearance between the tip of the cutting blade 55 of the rotary blade and the tip of the fixed blade 61 is preferably 0.1 to 0.5 mm, particularly preferably about 0.3 mm, in any of the cutting pieces.

  The screen 63 that surrounds the cutting rotor 52 is formed in a partial cylindrical shape with an opening at a portion continuous with the pressing portion 3, and a plurality of rectangular openings are formed so as to form a ridge shape. When the size of the cut piece of the wood material cut by the cutting blade 55 is larger than the size of the opening of the screen 63, the cut piece remains between the cutting rotor 52 and the screen 63. The cutting piece remaining between the cutting rotor 52 and the screen 63 is guided to the fixed blade 61 by the rotational force of the cutting rotor 52 and is further cut by the action of the fixed blade 61 and the cutting blade 55. When the size of the cut piece of the wood material that has been cut is smaller than the size of the opening of the screen 63, the cut piece passes through the opening of the screen 63, falls inside the cutting casing 51, and the cutting casing 51 and the pressing portion 3 is received by the carry-out conveyor 7 provided at the lower part of the line 3. Here, as the screen 63, when the cut piece to be produced is sawdust having a size of 1 to 5 mm, a punching metal in which through holes having a diameter of 2 to 12 mm are arranged can be used. Further, when the cutting piece to be manufactured is a wood chip having a dimension of 5 to 50 mm, the screen 63 is a punching metal in which through holes having a diameter of 30 to 60 mm are arranged, or a mesh body having a mesh size of 30 to 60 mm. Can be used.

  The fixed blade 61 is fixed at a position close to the rotation path at the tip of the cutting blade 55 of the cutting rotor 52, and cuts wood material by a shearing action with the rotating cutting blade 55. The fixed blade 61 is located inside the lower end edge of the opening formed in the screen 63.

  The carry-out conveyor 7 is disposed below the cutting casing 51 and the pressing portion 3, extends below the start pulley 72 located below the conveyor 2, the conveyor 2, the feed rotor 43, and the screen 63, and is made of wood material. , And a plurality of support rollers 73, 73,... That support the conveyor belt 71. The carry-out conveyor 7 receives cut pieces of wood material cut by the cutting unit 5, bark and dust released from the wood material when being transported by the transport conveyor 2 on the surface of the transport belt 71, and cutting Unload from part 5 to the outside.

  The sawdust manufacturing apparatus 1 having the above-described configuration operates as follows. First, the motor M of the pressing unit 3 is activated, the rotational force of the motor M is transmitted from the output shaft 44 to the drive shaft 221 via the roller chain coupling 441, and the transport conveyor 2 is driven. At the same time, the rotational force of the drive shaft 221 is transmitted to the relay shaft 48 with the rotational direction reversed by the gear transmission mechanism 81, and the rotational force in the reversed direction is transmitted from the relay shaft 48 to the swing shaft 32. The rotational force of the swing shaft 32 is transmitted to the rotational shaft 421 of the second pressing rotor 42, and the rotational force of the rotational shaft 421 of the second pressing rotor 42 is transmitted to the rotational shaft 411 of the first pressing rotor 41. As a result, the first pressing rotor 41 and the second pressing rotor 42 are rotationally driven in the same direction as the driving direction of the transport belt 21 at a portion facing the transport conveyor 2. Further, the rotational force of the drive shaft 221 is transmitted to the rotational shaft 433 of the feed rotor 43, and the feed rotor 43 is rotationally driven in the same direction as the sprocket 22 at the end of the conveyor 2. Thus, the operation of the pressing unit 3 is started, and a motor (not shown) of the cutting unit 5 is started, and the rotation driving of the cutting rotor 52 is started. In addition, a motor (not shown) of the carry-out conveyor 7 is activated, and the carrying operation of the carry belt 71 of the carry-out conveyor 7 is started.

  When the operations of the pressing unit 3, the cutting unit 5, and the carry-out conveyor 7 are started, the wood material is put into the starting end of the transfer conveyor 2. The input wood material is transported toward the cutting rotor 52 by the transport conveyor 2. When the height of the wood material is smaller than the clearance between the transport surface of the transport conveyor 2 and the first pressing rotor 41 located at the lower end of the swing range by the swing frame 45, the wooden material is the first press rotor. It passes below 41 and reaches the second pressing rotor 42. The wood material that has reached the second pressing rotor 42 is sandwiched between the second pressing rotor 42 and the feed rotor 43, and the mass of the second pressing rotor 42 and the rotating shaft 421 of the second pressing rotor 42 are The mass of the first pressing rotor 41 supported by the attached swinging frame 45 and the mass of the swinging casing 31 that pivotally supports the second pressing rotor 42 are received. As a result, the wood material is sandwiched and firmly held between the second pressing rotor 42 and the feed rotor 43, and in this state, the wood material is transferred to the cutting rotor 52 by the rotational force of the second pressing rotor 42 and the feed rotor 43. Sent. Therefore, since the wood material is sheared by the cutting blade 55 and the fixed blade 61 of the cutting rotor 52 while being firmly held by the second pressing rotor 42 and the feed rotor 43, the wood material is not violated. Oga powder and wood chips of the size can be produced stably.

  As shown in FIG. 14, the height of the wood material W <b> 1 charged into the transport conveyor 2 is between the transport surface of the transport conveyor 2 and the first pressing rotor 41 positioned at the lower end of the swing range by the swing frame 45. If the clearance is larger than the clearance between the first pressing rotor 41 and the clearance between the transport surface of the transport conveyor 2 and the upper end of the swing range of the swing frame 45, the transport conveyor 2 The first pressing rotor 41 rides on the wooden material W1 to be used. Thereby, the mass of the 1st press rotor 41 acts on the wood material W1, and the wood material W1 is sent to the 2nd press rotor 42 side with the conveyance force of the conveyance conveyor 2, and the rotational force of the 1st press rotor 41. FIG. When the wood material W1 reaches the second pressing rotor 42, the second pressing rotor 42 rides on the wood material W1, and accordingly, the swing casing 31 that pivotally supports the second press rotor 42 moves upward around the swing shaft 32. Rocks. Thus, the first pressing rotor 41 and the second pressing rotor 42 ride on the wood material W1, and the mass of the first pressing rotor 41, the mass of the second pressing rotor 42, and the mass of the swing casing 31 act. To do. The wood material W1 reaches the feed rotor 43 as soon as it rides on the second press rotor 42 and is sandwiched between the second press rotor 42 and the feed rotor 43. The first pressing rotor 41 and the second pressing rotor 42 are fed by being pressed by the first pressing rotor 41 and the second pressing rotor 42 and sandwiched between the second pressing rotor 42 and the feeding rotor 43. The wood material W <b> 1 is sent to the cutting rotor 52 by the rotational force of the rotor 43 and the transport force of the transport conveyor 2. Accordingly, the wood material W1 is sheared by the cutting blade 55 and the fixed blade 61 of the cutting rotor 52 while being firmly held by the conveyor 2, the first pressing rotor 41, the second pressing rotor 42, and the feeding rotor 43. Therefore, sawdust and wood chips having a predetermined size can be stably produced without causing the woody material W1 to be exposed.

  As shown in FIG. 15A, the height of the wood material W <b> 2 charged into the transport conveyor 2 is between the transport surface of the transport conveyor 2 and the first pressing rotor 41 positioned at the upper end of the swing range by the swing frame 45. When the clearance is larger than the clearance, the swing frame 45 is locked to the stopper 46 in the swing casing 31 before the first pressing rotor 41 rides on the wood material W <b> 2 transported by the transport conveyor 2. When the wooden material W2 advances to the second pressing rotor 42 side by the rotational force of the first pressing rotor 41 and the conveying force of the conveyor 2, the swing frame 45 is locked to the stopper 46 on the wooden material W2. In this state, the first pressing rotor 41 rides up. When the first pressing rotor 41 rides on the wood material W2, the movement of the first pressing rotor 41 is transmitted to the swing casing 31 via the swing frame 45 and the stopper 46, and as shown in FIG. It swings upward around the swing shaft 32. As a result, the mass of the first pressing rotor 41, the mass of the second pressing rotor 42, and the mass of the swing casing 31 act on the wood material W2. In this state, the wood material W <b> 2 is sent to the second pressing rotor 42 side by the conveying force of the conveying conveyor 2 and the rotational force of the first pressing rotor 41. When the wooden material W2 reaches the second pressing rotor 42, the second pressing rotor 42 rides on the wooden material W2, and accordingly, as shown in FIG. 15C, the swing casing 31 that pivotally supports the second pressing rotor 42 is provided. Further swings upward about the swing shaft 32. Thus, the first pressing rotor 41 and the second pressing rotor 42 ride on the wood material W2, and the mass of the first pressing rotor 41, the mass of the second pressing rotor 42, and the mass of the swing casing 31 act. To do. The wood material W2 reaches the feed rotor 43 as soon as it rides on the second press rotor 42, and is sandwiched between the second press rotor 42 and the feed rotor 43. The first pressing rotor 41 and the second pressing rotor 42 are fed by being pressed by the first pressing rotor 41 and the second pressing rotor 42 and sandwiched between the second pressing rotor 42 and the feeding rotor 43. The wood material W <b> 2 is sent to the cutting rotor 52 by the rotational force of the rotor 43 and the transport force of the transport conveyor 2. Therefore, the wood material W2 is sheared by the cutting blade 55 and the fixed blade 61 of the cutting rotor 52 while being firmly held by the conveyor 2, the first pressing rotor 41, the second pressing rotor 42, and the feeding rotor 43. Therefore, sawdust and wood chips having a predetermined size can be stably produced without causing the woody material W2 to be exposed.

  Thus, according to the sawdust manufacturing apparatus 1 of the present embodiment, the wood material is pressed by the first pressing rotor 41 and the second pressing rotor 42, and the first pressing rotor 41 is secondly moved by the swing frame 45. Since the rocking casing 31 that pivotally supports the second pressing rotor 42 is rockable about the rocking shaft 32 while being able to rock around the rotating shaft 421 of the pressing rotor 42, the wood material of various sizes Can be stably pressed by the first pressing rotor 41 and the second pressing rotor 42 or by the second pressing rotor 42. Therefore, the wood material of various dimensions can be cut with the cutting rotor 52 stably while preventing the rampage. Furthermore, since the feed rotor 43 is disposed between the end of the conveyor 2 and the cutting rotor 52 and below the second pressing rotor 42, the first pressing rotor and the second pressing rotor 42 or the second pressing rotor 42 is provided. The wood material pressed in step (2) can be firmly held between the second pressing rotor (42) and the feed rotor (43). Therefore, the wood material of various dimensions can be cut with the cutting rotor 52 stably while preventing the rampage. Here, the total mass of the first pressing rotor 41, the second pressing rotor 42, the swinging frame 45, and the swinging casing 31, which is made of wood material via the first pressing rotor 41 and the second pressing rotor 42. The applied load is preferably 1 to 1.5 t. By applying a load of 1 to 1.5 t to the wooden material via the first pressing rotor 41 and the second pressing rotor 42, the wooden material can be pressed and sent to the cutting rotor 52 while preventing rampage. Here, when the pressing force applied to the wood material is insufficient, a weight may be disposed on the swing casing 31. When a weight is disposed on the swing casing 31, as shown in FIG. 15C, it is preferable that a weight W formed of, for example, a metal plate is detachably disposed above the second pressing rotor.

  Moreover, the sawdust manufacturing apparatus 1 of this embodiment arrange | positions the 1st press rotor 41 in the upstream in the conveyance direction by the conveyance conveyor 2, and arrange | positions the 2nd press rotor 42 in the downstream, The said 1st press rotor. 41 can be swung around the rotation shaft 421 of the second pressing rotor 42 by the swinging frame 45, and the swing casing 31 that pivotally supports the second pressing rotor 42 is located upstream of the first pressing rotor 41. It can be swung around the disposed rocking shaft 32. Thereby, when the wood material is smaller than the clearance between the transport surface of the transport conveyor 2 and the first pressing rotor 41 when the swing angle of the swing frame 45 is the upper limit swing angle, The pressing force of the first pressing rotor 41 and the pressing force of the second pressing rotor 42 are formed so as to increase in this order. That is, the pressing force of the wood material is formed so as to increase as it approaches the cutting rotor 52. As a result, the wood material can be smoothly conveyed, and the wood material can be effectively pressed and cut by the cutting rotor 52 without being violated. Therefore, the production efficiency of sawdust or wood chips can be effectively increased.

  Further, the sawdust manufacturing apparatus 1 of the present embodiment has one end of the hydraulic cylinder 34 connected to the upper end corner portion of the swing casing 31 that swings around the swing shaft 32 that is located on the input side of the transport conveyor 2. Yes. By causing the hydraulic cylinder 34 to perform a buffering operation, when the swing casing 31 swings, the motion of the swing casing 31 can be moderated. Thereby, the impact at the time of the 1st press rotor 41 and the 2nd press rotor 42 pressing wood material can be relieved, and the 1st press rotor 41, the 2nd press rotor 42, the conveyance conveyor 2, and these drive An adverse effect on the mechanism can be prevented.

  Here, when wood material is not put into the sawdust manufacturing apparatus 1, the swing casing 31 is positioned at the lower end of the swing range, and the swing frame 45 is positioned at the lower end of the swing range. At this time, the clearance between the transport surface of the transport conveyor 2 and the first pressing rotor 41 is preferably set to 100 to 200 mm, particularly preferably about 150 mm. Moreover, it is preferable to set the clearance between the conveyance surface of the conveyance conveyor 2 and the 2nd press rotor 42 to 10-50 mm, and about 30 mm is especially preferable.

  Further, according to the sawdust manufacturing apparatus 1 of the present embodiment, when the wood material is not put into the sawdust manufacturing apparatus 1, the swing casing 31 is located at the lower end of the swing range, and When the moving frame 45 is positioned at the lower end of the swing range, the first pressing rotor 41 is disposed at a higher position away from the transport surface of the transport conveyor 2 than the second pressing rotor 42. That is, when the wood material is not put into the sawdust manufacturing apparatus 1, when the swing casing 31 is positioned at the lower end of the swing range and the swing frame 45 is positioned at the lower end of the swing range. The swinging frame 45 having one end rotatably supporting the first pressing rotor 41 and the other end pivotally supported on the rotating shaft 421 of the second pressing rotor 42 is positioned so that one end is located above the other end. It is tilted. This makes the lower end of the swing slit 311 of the swing casing 31 through which the rotating shaft 411 of the first pressing rotor 41 is inserted higher than the mounting position of the rotating shaft 421 of the second pressing rotor 42 with respect to the swing casing 31. It is realized by doing. Thereby, when the wood material conveyed by the conveyance conveyor 2 comes into contact with the first pressing rotor 41, the swing frame 45 swings smoothly, and the first pressing rotor 41 at one end quickly moves upward, and the wooden material The material can be sandwiched between the transport surface of the transport conveyor 2 and the first pressing rotor 41 reliably and smoothly. Therefore, it is possible to effectively prevent a pressing failure in which the wooden material collides with the first pressing rotor 41 or the wooden material rides on the first pressing rotor 41. As a result, the wooden material can be stably pressed by the first pressing rotor 41 and the second pressing rotor 42 and sent to the cutting rotor 52, and a cut piece of the wooden material can be stably manufactured. Note that the lower end of the swing slit 311 through which the rotation shaft 411 of the first pressing rotor 41 is inserted is made higher than the mounting position of the rotation shaft 421 of the second pressing rotor 42, so that the first pressing rotor 41 is second pressed. Although arranged at a position higher than the rotor 42, a lower end stopper that defines the lower end of the swing range of the swing frame 45 that swings and supports the first press rotor 41 is provided, and the first press rotor 41 is moved to the second press rotor. You may arrange | position in a position higher than 42.

  Furthermore, according to the sawdust manufacturing apparatus 1 of the present embodiment, the rocking shaft 32 of the rocking casing 31 is moved from the first pressing rotor 41 and the second pressing rotor 42 that press the wooden material in the conveying direction of the wooden material. Since the wood material is in contact with the first pressing rotor 41 or the second pressing rotor 42, the swing casing 31 quickly swings upward, and the first pressing rotor 41 and the second pressing rotor 42 can be swung upwards reliably and smoothly. Therefore, for example, when the pressing rotor is supported by the swing arm around the swing shaft arranged on the downstream side in the moving direction of the wooden material, the swinging arm has a swing failure and the wooden material is bitten. Inconveniences such as buckling of the swing arm can be effectively prevented.

  The weight of the first pressing rotor 41, the second pressing rotor 42, and the swing casing 31 acts on the wood material on the transport conveyor 2, but the rotating shaft 421 of the second pressing rotor 42 is in plan view, It is arranged closer to the cutting rotor 52 than the sprocket 22 at the end of the conveyor 2. Thereby, the inconvenience that the sprocket 22 of the conveyor 2 is damaged by the weight of the second pressing rotor 42 and the swing casing 31 can be prevented. Since the weight of the second pressing rotor 42 and the swing casing 31 is received by the feed rotor 43 disposed between the terminal end of the conveyor 2 and the cutting rotor 52 and positioned below the second pressing rotor 42, the wood material is received. The wood material can be stably cut by the cutting rotor 52 while being effectively supported by being sandwiched between the second pressing rotor 42 and the feed rotor 43.

  According to the sawdust manufacturing apparatus 1 of the present embodiment, a cutting piece having a maximum dimension of 1 mm or more and 50 mm or less can be manufactured, and so-called wood chips can be manufactured in addition to sawdust.

  The sawdust manufacturing apparatus 1 of the present embodiment mainly requires maintenance of the cutting rotor 52 such as replacement of the cutting blade 55 and adjustment of the protruding length of the cutting edge of the cutting blade 55 as the operation time elapses. . Moreover, the maintenance of the 1st press rotor 41 of the press part 3 and the 2nd press rotor 42 may be needed. Therefore, in this sawdust manufacturing apparatus 1, the upper part of the cutting casing 51 is an opening / closing part 51a that can be opened and closed with respect to the lower part. This opening / closing part 51a is driven by a hydraulic cylinder or motor (not shown), and around the hinge 65 provided on the end face of the cutting casing 51, the front, that is, the direction in which the transport conveyor 2 feeds the wood material, or the carry-out conveyor 7 holds the cutting pieces. It is formed so as to be swingable in the discharging direction. Thereby, the cutting rotor 52 and the screen 63 inside the cutting part 5 are formed so as to be exposed to the outside. Note that the opening / closing part 51 a of the cutting casing 51 may be formed to be swingable laterally around a hinge provided on the side part of the cutting casing 51. Further, the range in which the cutting casing 51 can be opened and closed is not limited to the upper portion, and may be the side portion, the front portion, the upper portion and the side portion, or all of them. Inside the cutting unit 5, a scaffold 66 for an operator is provided in front of and below the cutting rotor 52. The scaffold 66 is for an operator to enter the cutting casing 51 through the open opening / closing part 51a and place his / her foot when performing maintenance, and a cutting piece cut by the cutting rotor 52 passes therethrough. It is made possible. As such a scaffold 66, a mesh body having a mesh size through which the cutting piece can pass, a punching metal provided with a through-hole through which the cutting piece can pass, and a parallel arrangement with a spacing through which the cutting piece can pass. It can be formed of a plurality of bar-like bodies. In the present embodiment, the scaffold 66 is formed of a plurality of rod-like bodies that extend in the width direction of the cutting portion 5 and are arranged in parallel in the front-rear direction.

  In the sawdust manufacturing apparatus 1 of the present embodiment, maintenance is performed as follows. First, the opening / closing part 51 a of the cutting casing 51 is swung forward around the hinge 65 to release the inside of the cutting part 5. Subsequently, the operator enters the cutting casing 51 through an opening formed by opening the opening / closing part 51a, and places his / her foot on the scaffold 66 as shown in FIG. When the operator puts his / her foot on the scaffold 66 and faces the pressing portion 3 side, the cutting rotor 52 is positioned on the front side of the operator, so adjustment of the protruding length of the cutting edge 55 of the cutting blade 55 of the cutting rotor 52 and cutting blade Maintenance such as replacement of 55 can be easily performed. Further, the clogging of the screen 63 disposed on the outer peripheral side of the cutting rotor 52 can be eliminated and the damaged portion can be repaired. The screen 63 is divided into an upper half portion located above a horizontal plane passing through the drive shaft 521 of the cutting rotor 52 and a lower half portion located below the horizontal plane, and the upper half portion of the screen 63 You may form so that it may move with the opening-and-closing part 51a of the cutting casing 51. FIG. Thereby, when the opening / closing part 51a is opened, the upper half part of the screen 63 is retracted together with the opening / closing part 51a, and the upper half part of the cutting rotor 52 is exposed, so that an operator can quickly start maintenance of the cutting rotor 52. Can do. Further, when the worker is on the scaffold 66 and the swing casing 31 is swung around the swing shaft 32 by the hydraulic cylinder 34, the first press rotor 41 and the second press rotor 42 are lifted. The inside of the swing casing 31 including the first pressing rotor 41 and the second pressing rotor 42 is exposed toward the operator. Therefore, the worker can easily access the first pressing rotor 41 and the second pressing rotor 42 and perform maintenance.

  In the above embodiment, the rotor disk 53 of the cutting rotor 52 is formed by fixing a cutting blade 55 as a rotary blade to a support plate 54 formed of a single plate material. However, a rotor disk having another structure is used. be able to. FIG. 17 is a view showing another example of the rotor disk, and FIG. 18 is a cross-sectional view of the rotor disk of FIG.

  In the rotor disk 153, two sets of rotating blades formed by a cutting blade 155 and a back blade 156 are fixed to the outer peripheral portion of the support plate at an angle of 180 °. The support disk of the rotor disk 153 is hollow by connecting two plate members 154 and 154 with a sleeve member 161 inserted through the drive shaft 521 at the center of rotation and a fixed plate 162 to which the rotary blade is fixed. Is formed. A rotating blade formed by the cutting blade 155 and the back blade 156 and a substantially L-shaped fixing member 157 for fixing the cutting blade 155 and the back blade 156 are inserted into the plate members 154 and 154 forming the support plate. A notch 154a is formed. The fixing member 157 has an L-shaped back surface portion and a bottom surface portion fixed to the edge of the notch 154a of the plate member 154 by welding.

  19A is a side view of the cutting blade 155, and FIG. 19B is a plan view of the cutting blade 155. FIG. The cutting edge 155 is a plate-like body having one end face inclined and a cutting edge formed at the tip, and a surface connected to the end face on which the cutting edge is formed via an obtuse angle is attached in contact with the fixed plate 162. A long hole 554 inserted into the shaft portion of the bolt 158 is formed at a position near the base end of the plane of the cutting edge 155. The long hole 554 is formed long in the direction connecting the end face on the cutting edge side of the cutting edge 155 and the end face on the proximal end side, and the protruding length of the cutting edge of the cutting edge 155 in a state of being inserted through the bolt 158. Is adjustable. A tensile spiral hole 555 is formed in the center in the width direction on the other end surface that is the base end side of the cutting edge 155. As shown in FIG. 18, a tensile bolt 159 for introducing a tensile force to the cutting blade 155 is screwed into the tensile spiral hole 555. The tension bolt 159 is inserted into an insertion hole formed at the distal end portion of the short side of the L-shaped fixing member 157, and the bolt head is locked to the outer surface of the distal end portion of the fixing member 157 so that the tensile force is reduced. Power is supported. A plurality of tensile spiral holes 555 and tensile bolts 159 may be provided. Two edge adjustment spiral holes 556 and 556 are formed on both ends in the width direction of the tension spiral hole 555 on the end face on the proximal end side of the cutting edge 155. A blade edge adjusting bolt 164 for adjusting the protruding length of the cutting edge of the cutting edge 155 is screwed into the blade edge adjusting spiral hole 556. When the cutting edge 155 is attached to the fixing member 157, the bolt edge of the blade edge adjusting bolt 164 is locked to the inner side surface of the short side portion of the fixing member 157. The screwing length of the blade edge adjusting bolt 164 to the blade edge adjusting spiral hole 556 is adjusted, and the protrusion length of the blade edge adjusting bolt 164 from the end face on the proximal end side of the cutting edge 155 is adjusted, whereby the fixing member 157 is fixed. The distance between the inner side surface of the short side portion and the end surface on the proximal end side of the cutting edge 155 is adjusted. Thereby, the protrusion amount of the cutting blade 155 from the support plate is adjusted. When the screwing length of the blade edge adjusting bolt 164 to the blade edge adjusting spiral hole 556 is determined, the nut 165 that is screwed to the blade edge adjusting bolt 164 is fastened to the end face of the cutting edge 155, and from the support plate of the cutting edge 155. The amount of protrusion is fixed.

  20A is a side view of the back blade 156, and FIG. 20B is a plan view of the back blade 156. FIG. The back blade 156 is a plate-like body whose one end face is inclined and has a sharp tip, and is formed with a thickness larger than that of the cutting blade 155. The back blade 156 has a surface that is continuous with the sharp end face through an acute angle and is in contact with the cutting blade 155, while a surface that is continuous with the sharp end face through an obtuse angle is the long side of the L-shaped fixing member 157. It is attached so as to contact the inner surface. On the plane of the back blade 156, there are an insertion long hole 562 that is arranged at the center in the width direction and is inserted through the shaft portion of the bolt 158, and a fixing long hole 563 for fixing that is arranged on both sides of the insertion long hole 562. Is formed. The fixed long hole 563 has a step portion in the middle of the penetrating direction, and the width on the side in contact with the cutting edge 155 is larger than the width on the side in contact with the fixing member 157. The cap screw is inserted into the fixed long hole 563, the head of the cap screw is locked to the step of the fixed long hole 563, and the shaft portion of the cap screw is screwed into the spiral hole formed in the fixing member 157. Thus, the back blade 156 is fixed to the fixing member 157. Since the insertion long hole 562 and the fixed long hole 563 are formed as long holes, the insertion long hole 562 and the fixed long hole 563 can be fixed to the fixing member 157 in a state where the protruding amount from the support plate at the tip of the back blade 156 can be adjusted. Two back blade adjustment spiral holes 564 and 564 are formed on both ends in the width direction on the end surface on the base end side of the back blade 155. A back blade adjustment bolt 166 that adjusts the protruding length of the tip of the back blade 156 is screwed into the back blade adjustment spiral hole 564. When the back blade 156 is attached to the fixing member 157, the bolt head of the back blade adjustment bolt 166 is locked to the inner surface of the short side portion of the fixing member 157. The screw length of the back blade adjustment bolt 166 to the back blade adjustment spiral hole 564 is adjusted, and the protrusion length of the back blade adjustment bolt 166 from the end surface on the base end side of the back blade 156 is adjusted to fix the back blade adjustment bolt 166. The distance between the inner surface of the short side portion of the member 157 and the end surface on the proximal end side of the back blade 156 is adjusted. Thereby, the protrusion amount of the back blade 156 from the support plate is adjusted. When the screwing length of the back blade adjustment bolt 166 to the back blade adjustment spiral hole 564 is determined, the nut 167 screwed to the back blade adjustment bolt 166 is fastened to the end surface of the back blade 156, and The amount of protrusion from the support plate is fixed.

  The cutting blade 155 and the back blade 156 are accommodated between the fixing plate 162 and the fixing member 157, and bolts 158 are inserted into the through hole of the fixing plate 162, the long hole 554 of the cutting blade 155, and the insertion hole 562 of the back blade 156. The bolt 158 is inserted into a screw hole formed in the fixing member 157 and fixed to the support plate. Thus, the cutting blade 155 is fixed to the support plate in a state where the tip of the cutting blade 155 protrudes from the tip of the back blade 156. According to the rotor disk 153, since the hollow support plate formed by connecting the two plate members 154 and 154 is used, the weight of the cutting rotor 52 can be reduced.

  FIG. 21 is a front view showing a cutting rotor 52 formed using the rotor disk 153. The cutting rotor 52 is formed by connecting six rotor disks 153 in the axial direction. The six rotor disks 153 are connected so that the position of the rotary blade forms a spiral on the outer peripheral surface of the cutting rotor 52. Since this cutting rotor 52 has a cutting blade 155 and a back blade 156 and a rotating blade is formed, it is possible to effectively suppress cracking of the wood material, and to manufacture saw chips and wood chips having a uniform size. Can do. Here, the arrangement form of the rotor disk 153 in the cutting rotor 52 may be arranged such that, for example, the rotary blade is parallel to the drive shaft 521 in addition to the rotary blade being arranged in a spiral shape. Alternatively, three sets of two rotor disks 153 in which the rotary blades are arranged in parallel with the drive shaft 521 may be created, and the sets may be shifted in the circumferential direction and connected. Further, as shown in FIG. 22, six rotor disks 153 may be arranged such that the rotary blades are V-shaped when viewed from the front. Further, the number of rotor disks 153 constituting the cutting rotor 52 may be other than six, and can be appropriately changed according to the sawdust to be manufactured, the size of the chip, and the like.

  In the rotor disk 153 of the above embodiment, a fixing member 157 is welded to a hollow support plate, and a tension bolt 159 for introducing a tensile force to the cutting blade 155 is connected to the fixing member 157. It is also possible to adopt a structure in which the tensile force to be supported is supported by a support board. 23 is a cross-sectional view showing a rotor disk 253 in which a cutting blade 255 of a rotary blade is connected to a support plate 254 by a tension bar 259, and FIG. 24 shows a cutting rotor 52 constituted by the rotor disk 253 of FIG. It is a front view.

  In this rotor disk 253, two sets of rotating blades formed by a cutting blade 255 and a back blade 256 are fixed to the outer peripheral portion of the support plate 254 at an angle of 180 °. The support plate 254 is formed in a substantially L shape when viewed in the axial direction, and has a rotary blade notch 254a as a mounting groove into which the cutting blade 255 and the back blade 256 are fitted, and about 60 ° from the rotary blade notch 254a. It has a nut notch 524b that is formed at an angled position and accommodates a nut 260 that adjusts the protruding length of the cutting blade 255.

  In the rotary blade notch 254a, a back blade 256 and a cutting blade 255 are disposed so as to overlap in order from the inside in the radial direction. The back blade 256 and the cutting blade 255 are overlapped so that the back surfaces thereof are in contact with each other and the cutting edge of the cutting blade 255 protrudes beyond the cutting edge of the back blade 256. On the surface of the cutting blade 255, a wedge-shaped fixing member 257 that is fitted into the rotary blade notch portion 254a and whose outer periphery is connected to the support plate 254 is disposed. The fixing member 257 is a fixing bolt 258 inserted from the outer peripheral side. To be fixed to the support plate 254. The fixing bolt 258 is inserted into a through hole formed in the bottom of the recess of the fixing member 257, a long hole formed in the cutting blade 255, and a U-shaped groove formed in the back blade 256, 254 is screwed into a spiral hole formed in the rotary blade notch 254a. In this way, the cutting blade 255 and the back blade 256 are fixed via the fixing member 257 with the fixing bolt 258. The bolt head of the fixing bolt 258 is accommodated in a recess formed on the outer peripheral surface of the fixing member 257.

  The cutting blade 255 is formed so that the amount of protrusion from the support plate 254 can be adjusted along a long hole through which the shaft portion of the fixing bolt 258 is inserted. Further, the back blade 256 is formed such that the protruding amount from the support board 254 is adjusted along the U-shaped groove through which the shaft portion of the fixing bolt 258 is inserted, and the position of the back blade 256 relative to the cutting blade 255 can be adjusted. .

  One end of a tension bar 259 as a tension member to which a tensile force is introduced is screwed to an end surface accommodated in the rotary blade notch 254a of the cutting blade 255. The threaded portion of the tension bar 259 to the cutting blade 255 is fixed with a nut 261. The tension bar 259 is inserted into a through hole formed between the rotary blade notch 254a and the nut notch 524b of the support board 254, and the other end is fixed to the wall surface of the nut notch 524b by the nut 260. Yes. A blade edge adjusting bolt 264 for adjusting the protruding amount of the cutting blade 255 is accommodated between the end surface of the cutting blade 255 and the wall surface of the rotary blade notch 254a. When adjusting the protrusion amount of the cutting blade 255, the distance between the wall surface of the rotary blade notch 254a and the end surface of the cutting blade 255 is adjusted with the blade edge adjusting bolt 264, and then the nut notch 524b side of the tension bar 259 is adjusted. The nut 260 is fastened to fix the cutting blade 255 to a predetermined protruding amount.

  A tension adjusting bolt 262 that introduces a tensile force and adjusts the protruding amount of the back blade 256 is screwed to an end face accommodated in the rotary blade notch 254 a of the back blade 256. A screwed portion of the tension adjusting bolt 262 to the back blade 256 is fixed by a nut 263. The tension adjusting bolt 262 is threaded into a spiral hole formed in the wall-shaped convex portion 254c protruding into the rotary blade notch 254a, and the tension adjusting bolt 262 is inserted into the surface of the convex portion 254c. The spiral head touches. Between the end face of the back blade 256 and the convex portion 254c, the nut blade 254d is formed by attaching the back blade 256 to the rotary blade notch 254a, and the nut 263 is stored in the nut housing portion 254d. . The protruding amount of the back blade 256 is adjusted by the screwing length of the tension adjusting bolt 262 to the back blade 256. After the screwing length of the tension adjusting bolt 262 to the back blade 256 is adjusted, the nut 263 is fastened to fix the back blade 256 to a predetermined protruding amount. The convex portion 254c to which the tension adjusting bolt 262 that is screwed into the back blade 256 is screwed has a tip end surface in contact with the side surface of the cutting blade 255.

  For example, a cutting rotor 52 as shown in FIG. 24 can be configured by using a rotor disk 253 having a rotary blade formed by the cutting blade 255 and the back blade 256. The cutting rotor 52 is formed by connecting four rotor disks 253 in the axial direction. The four rotor disks 253 are connected so that the position of the rotary blade is positioned on a straight line parallel to the drive shaft 521. Since this cutting rotor 52 has a cutting blade 255 and a back blade 256 and a rotary blade is formed, it is possible to effectively suppress cracking of the wood material, and to manufacture saw chips and wood chips having a uniform size. Can do. Here, the cutting rotor 52 creates two sets of two rotor disks 253 in which, for example, the rotating blades are arranged in a straight line, in addition to arranging the rotating blades of the four rotor disks 253 in a straight line, You may connect mutually a pair by shifting in the circumferential direction. Further, the four rotor disks 253 may be coupled so that the position of the rotary blade forms a spiral on the outer peripheral surface of the cutting rotor 52. Alternatively, the four rotor disks 253 may be arranged such that the rotary blade draws a V shape when viewed from the front. Further, the number of the rotor disks 253 constituting the cutting rotor 52 may be other than four, and can be appropriately changed according to the size of the cutting piece to be manufactured.

DESCRIPTION OF SYMBOLS 1 Oga powder manufacturing apparatus 2 Conveyor 3 Pressing part 5 Cutting part 7 Unloading conveyor 21 Conveying belt 22 Sprocket 31 Oscillating casing 32 Oscillating shaft 34 Hydraulic cylinder 41 First pressing rotor 42 Second pressing rotor 43 Feeding rotor 45 Oscillating frame 46 Stopper 51 Cutting casing 52 Cutting rotor 53 Rotor disk 54 Support plate 55 Rotary blade 56 Fixing tool 72 Start pulley 71 Conveying belt 61 Fixed blade 63 Screen

Claims (14)

A transport device for transporting the input wood material;
A cutting rotor which is disposed on the terminal end side of the conveying device and is rotationally driven with a rotary blade;
A fixed blade disposed close to the rotation path of the rotary blade of the cutting rotor;
A first pressing rotor that is rotationally driven in synchronization with the conveying device, and presses the wood material conveyed by the conveying device and sends it to the cutting rotor side;
The wood that is rotationally driven in synchronism with the conveying device and is disposed on the cutting rotor side with respect to the first pressing rotor and on the cutting rotor side with respect to the driving wheel at the end of the conveying device, and is conveyed by the conveying device. A second pressing rotor that presses the material and sends it to the cutting rotor side;
A swing support member pivotally attached to the rotation shaft of the second pressing rotor and supporting the first pressing rotor in a swingable manner;
The first pressing rotor and the second pressing rotor are covered, and the rotation shaft of the second pressing rotor is pivotally supported. On the other hand, the first pressing rotor and the second pressing rotor are swingably supported by a swinging shaft disposed on the input side of the transport device. A swinging casing,
The wood material, which is rotationally driven in synchronization with the conveying device, is disposed between the end of the conveying device and the cutting rotor, and below the second pressing rotor, and is conveyed by the conveying device. And a feeding rotor to send to
The saw wheel manufacturing apparatus , wherein a driving wheel at a terminal end of the conveying device is disposed between the first pressing rotor and the second pressing rotor in a plan view . In the sawdust manufacturing apparatus according to claim 1 ,
The first pressing rotor has a lower end of the swing range defined by a lower end of a slit formed in the swing casing and through which a rotation shaft of the first press rotor is inserted, while an upper end of the swing range Is defined by a locking tool fixed to the swing casing and locked to the swing support member. In the sawdust manufacturing apparatus according to claim 1 or 2 ,
An apparatus for producing sawdust, wherein a weight for increasing a pressing force to the wood material by the first pressing rotor and / or the second pressing rotor is attached to the swing casing. In the sawdust manufacturing apparatus according to any one of claims 1 to 3 ,
An apparatus for producing sawdust, comprising a buffering device for buffering the swinging motion of the swinging casing about the swinging shaft. In the sawdust manufacturing apparatus according to any one of claims 1 to 4 ,
The conveying device and the feed rotor are driven by the same motor, and the rotating shaft connected to the drive wheel of the conveying device is arranged substantially on the same straight line as the output shaft of the motor and connected to the output shaft. And the rotary shaft of the feed rotor is arranged adjacent to and parallel to the output shaft of the motor and connected to the output shaft via a power transmission mechanism. In the sawdust manufacturing apparatus according to any one of claims 1 to 5 ,
The conveying device, the first pressing rotor, and the second pressing rotor are driven by the same motor, and the rotation shaft connected to the drive wheel of the conveying device is arranged substantially on the same straight line as the output shaft of the motor. And the rotation shaft of the second pressing rotor is disposed in parallel with the output shaft of the motor and is connected to the output shaft via a power transmission mechanism that passes through the swing shaft of the swing casing. A sawdust manufacturing apparatus connected to an output shaft. In the sawdust manufacturing apparatus according to claim 6 ,
The rotary shaft of the first pressing rotor is arranged in parallel with the rotary shaft of the second pressing rotor and is connected to the rotary shaft of the second pressing rotor through a power transmission mechanism. manufacturing device. In the sawdust manufacturing apparatus according to any one of claims 1 to 7 ,
The cutting rotor is
A rotation axis;
A plurality of disk-shaped support plates that are externally fitted to the rotating shaft;
A plate-like rotary blade fitted in a mounting groove formed on the outer periphery of the support plate;
A bolt head that is screwed onto the end face of the rotary blade and abuts against the bottom of the mounting groove, and the amount of protrusion of the rotary blade from the support plate is adjusted by adjusting the screwing length to the rotary blade. Adjustable bolts,
An apparatus for producing sawdust, comprising: a wedge-shaped fixture that is disposed adjacent to the rotary blade and presses and fixes the rotary blade against a side surface of the mounting groove. In the sawdust manufacturing apparatus according to any one of claims 1 to 7 ,
The cutting rotor is
A rotation axis;
A plurality of support plates that are externally fitted to the rotating shaft and in which two opposing disks are fixed to each other;
An L-shaped attachment member that connects the two disks of the support plate and forms an attachment groove that extends to the outer periphery of the support plate;
A plate-like rotary blade fitted in the mounting groove;
A bolt head that is screwed onto the end face of the rotary blade and abuts against the bottom of the mounting groove, and the protruding length of the rotary blade from the support plate is adjusted by adjusting the screwing length to the rotary blade. Adjustable bolts,
An sawdust manufacturing apparatus comprising: a fixing bolt that is inserted into a through-hole formed in the rotary blade and is screwed into a bolt hole formed in the mounting member to fix the rotary blade to the mounting member. . In the sawdust manufacturing apparatus according to any one of claims 1 to 7 ,
The cutting rotor is
A rotation axis;
A plurality of substantially circular support plates that are externally fitted to the rotating shaft;
A rotary blade that is fitted in a mounting groove formed on the outer peripheral portion of the support plate and is formed by a cutting blade and a back blade,
It is in contact with the surface of the cutting edge of the rotary blade and is fitted into the mounting groove of the support plate, and is inserted into a bolt that is screwed to the support plate through the long hole and / or groove formed in the rotary blade. A fixing member that is fixed in place,
A nut that is screwed into an end face of the cutting blade of the rotary blade, is inserted into an insertion hole formed in the chord direction from the mounting groove of the support plate, and contacts an opening on the opposite side of the mounting groove of the insertion hole of the support plate A tensile member into which a tensile force is introduced by
An adjustment bolt that has a bolt head that abuts the bottom of the mounting groove and is capable of adjusting the amount of protrusion of the cutting blade from the support plate by adjusting the screwing length of the rotary blade to the cutting blade; ,
Screwed into the end face of the back blade of the rotary blade and passed through the insertion hole formed in the projection protruding into the mounting groove, the bolt head is in contact with the opening of the projection hole of this projection, and the tensile force is A saw powder manufacturing apparatus comprising: a tension adjusting bolt that is introduced and that can adjust a protruding amount of the back blade from the support plate by adjusting a screwing length to the back blade. . In the sawdust manufacturing apparatus according to any one of claims 1 to 10 ,
An oga comprising a sieve body that is disposed on the side opposite to the side on which the wood material is introduced and that passes through a cut piece of wood material smaller than a predetermined dimension along the outer periphery of the rotation path of the cutting rotor. Powder production equipment. In the sawdust manufacturing apparatus according to any one of claims 1 to 11 ,
The transport device is
A transport plate whose center in the cross section in the transport direction bulges to the placement surface side of the transported object, and is provided at an edge of the transport plate and protrudes to the opposite side of the bulge direction of the center. A conveyor belt including a hinge-shaped coupling portion to be coupled, and a latching portion that is provided on the placement surface of the conveyance plate and latches to the wood material;
It has a trough part fitted to the connecting part of the conveyor belt and a tooth part fitted to the back surface of the conveyor plate, and has a sprocket that is driven to rotate and conveys the conveyor belt. Oga powder manufacturing equipment. In the sawdust manufacturing apparatus according to any one of claims 1 to 12 ,
An sawdust manufacturing apparatus comprising: a carry-out device that is disposed at least below the terminal end of the transport device and the cutting rotor, and carries a cutting piece formed by cutting the wood material. In the sawdust manufacturing apparatus according to any one of claims 1 to 13 ,
A cutting casing that covers the cutting rotor and is formed so that at least a part thereof can be opened and closed;
An apparatus for producing sawdust, comprising: a scaffold disposed around the cutting rotor, wherein the cutting piece formed by cutting the wood material with the cutting rotor is formed to be permeable.

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