JP2017164927A - Woody chip manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a woody chip manufacturing device which prevents woody chips from scattering to the surroundings, has a relatively simple power transmission mechanism, has a relatively simple structure and can prevent warping of a woody material.SOLUTION: A woody chip manufacturing device 1 comprises a conveyor 2 for conveying an input woody material, a pressing part 3 for pressing and feeding the woody material, and a cutting part 5 for cutting the woody material with a cutting rotor 52. The pressing part 3 has a single pressing rotor 41, a swing frame 33 attached to a swing shaft 32 provided in a wall body 31 continuous to a side wall 24 of the conveyor 2 and swingably supporting the pressing rotor 41, and three lower rotors 42 arranged below the pressing rotor 41. The pressing rotor 41 rides on the woody material conveyed by the conveyor 2, and the woody material is sandwiched by the pressing rotor 41 and the three lower rotors 42 and fed to the cutting rotor 52.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wood chip manufacturing apparatus for manufacturing a wood chip by cutting a wood material such as wood.

  Conventionally, as an apparatus for manufacturing a wood chip by cutting wood material, as shown in FIG. 14, a conveyor 102 that conveys the wood material that has been input, and a wood material that is provided near the end of the conveyor 102 and presses the wood material. The first and second pressing rotors 103 and 104 that feed out while the lower rotor 105 that is provided below and on the feeding side of the second pressing rotor 104 and feeds wood while supporting the wood, and the first and second pressing rotors 103 and 104. And a cutting rotor 106 that cuts wood sent by the lower rotor 105 (see Patent Document 1).

  In this wood chip manufacturing apparatus 101, the first and second pressing rotors 103 and 104 are made swingable in two stages as the wood material is fed. That is, the second pressing rotor 104 is pivotally attached to the swing casing 107 by a pivot shaft 108, and the first press rotor 103 is pivotally mounted on the tip of a swing member 109 that is rotatably supported by the pivot shaft 108. doing. Further, the swing casing 107 is erected on an extension of a protective wall provided on both sides of the conveyor 102 and supported by a frame positioned inside the swing casing 107 via a swing shaft 110. . The first and second pressing rotors 103 and 104 and the lower rotor 105 are connected to a single common motor via a power transmission mechanism composed of gears and a chain. Specifically, the lower rotor 105 is connected to a motor disposed in the vicinity via a gear. On the other hand, the first and second pressing rotors 103 and 104 are connected to a motor in the vicinity of the lower rotor 105 by a chain via a relay shaft built inside the swing shaft 110, thereby swinging. While being able to rotate.

  When the wood material is put into the wood chip manufacturing apparatus 101, the conveyor 102 conveys the wood material to the first pressing rotor 103, and the first pressing rotor 103 swings around the pivot shaft 108 and rides on the wood material. . When the wooden material is further conveyed by the action of the rotating first pressing rotor 103 and the conveyor 102 and reaches the second pressing rotor 104, the swing casing 107 swings around the swing shaft 110 and is added to the swing shaft 110. Then, the second pressing rotor 104 rides on the wood material. In a state where the masses of the first and second pressing rotors 104 and the swing casing 107 are pressed against the wooden material, the wooden material is further conveyed by the driving force of the first and second pressing rotors 104, and the lower rotor 105. Is reached, the lower rotor 105 and the first and second pressing rotors 104 sandwich the wood material. In this way, the wood material is fed to the cutting rotor 106 while being sandwiched between the lower rotor 105 and the first and second pressing rotors 104, and the fixed blades arranged near the rotary blade 111 of the cutting rotor 106 and the lower portion of the cutting rotor 106 are fixed. The wood material is cut by the action of the blade 113. Of the cut wood material, a material having a size smaller than the mesh of the mesh body 106 arranged on the outer peripheral side of the cutting rotor 106 passes through the mesh body 106. Of the cut wood material, a material having a size larger than the mesh of the mesh body 106 stays in the mesh body 106 and is sheared by the rotary blade 111 and the fixed blade 113, and passes through the mesh body 106 when the size is reduced. The wood chips that have passed through the net 106 are received by the lower carry-out conveyor 114 and carried out of the wood chip manufacturing apparatus 101.

Japanese Patent Application Laid-Open No. 2015-150857

  However, in the conventional wood chip manufacturing apparatus 101, the swing casing 107 that supports the first and second pressing rotors 103 and 104 is supported by a frame positioned on the extension of the protective wall of the conveyor 102 and can swing. Therefore, a clearance is provided between the frame and the frame. Therefore, there is a problem that a cut piece obtained by cutting the wood material with the cutting rotor 106 leaks outside from the clearance between the swing casing 107 and the frame and is scattered around the wood chip manufacturing apparatus 101.

  Moreover, since the conventional wood chip manufacturing apparatus 101 drives the two pressing rotors 103 and 104 and the lower rotor 105 with a single motor, the configuration of the power transmission mechanism becomes complicated. The power transmission mechanism having a complicated structure has a problem that the number of parts is large, the manufacturing cost and the assembling work are large, the maintenance cost and the labor are large, and the energy consumption due to the transmission loss is large.

  In addition, the conventional wood chip manufacturing apparatus 101 can swing the two pressing rotors 103 and 104 in two stages, so that the structure is complicated, the number of parts is large, and the manufacturing cost and the labor of assembling are large. There is a problem that maintenance costs and labor are large.

  In addition, a plurality of wood materials are put into the conveyor 102 at the same time, and the plurality of wood materials thrown into are substantially pile-shaped piles, but the pile wood materials are the two pressing rotors 103, 104. And the lower rotor 105 tends to be insufficiently fixed. When the wood material that is insufficiently fixed is sent to the cutting rotor 106, there is a problem in that the wood material is brought into contact with the rotating cutting rotor 106 and is violently shaken.

  Then, the subject of this invention is providing the wood chip manufacturing apparatus with which a cutting piece does not scatter to circumference | surroundings. Another object of the present invention is to provide a wood chip manufacturing apparatus having a relatively simple power transmission mechanism. Another object is to provide a wood chip manufacturing apparatus having a relatively simple structure. Another object of the present invention is to provide a wood chip manufacturing apparatus that can prevent the wood material from being rampant.

In order to solve the above problems, the wood chip manufacturing apparatus of the present invention is sent by being transported by a transport unit that transports the wood material, a pressing unit that presses the wooden material transported by the transport unit, and the pressing unit. In the wood chip manufacturing apparatus provided with a cutting portion for cutting wood material,
The pressing part is
A wall body connected to the side wall defining the conveyance path of the wooden material of the conveyance unit;
A swing member disposed inside the wall body so as to be swingable via a swing shaft attached to the wall body,
A single pressing rotor that is pivotally supported by the rocking member and presses the upper portion of the wood material conveyed by the conveying device, and sends the wood material toward the cutting portion,
A plurality of lower rotors are provided below the pressing rotor, support the wood material, and feed the wood material toward the cutting portion.

  According to the above configuration, the wooden material is conveyed by the conveying unit, the wooden material conveyed by the conveying unit is input to the pressing unit, and the wooden material pressed and sent by the pressing unit is cut by the cutting unit. Wood chips are manufactured. As woody materials, timber, pruned wood, edge wood, thinned wood, waste wood, etc. are widely applicable. As a wood chip | tip, what was manufactured by cutting the said wood material corresponds widely, a dimension and a shape are not specifically limited, What is called sawdust and wood waste is also included. In the pressing part of the wood chip manufacturing apparatus having the above-described configuration, the wood material transported by the transporting part is pressed from above by the pressing rotor and supported by a plurality of lower rotors below. Depending on the number and size of the wood material, the height direction position of the pressing rotor riding on the wood material is autonomously adjusted by the rocking member rocking about the rocking shaft. Accordingly, various wood materials having different numbers and sizes are effectively sandwiched between the pressing rotor and the lower rotor. The wood material sandwiched between the pressing rotor and the lower rotor is sent to the cutting part by the pressing rotor and the lower rotor, and is cut by the cutting part to produce a wood chip.

Since the rocking member that supports the pressing rotor is arranged inside the wall body that is continuous with the side wall that divides the conveyance path of the wood material in the conveyance section, the cutting piece in which the wood material is cut in the cutting section is the wall. There is no leakage outside the body. Therefore, it is possible to effectively prevent the inconvenience that the cutting pieces leak and scatter outside the wall body as in the conventional wood chip manufacturing apparatus. Further, since the single pressing rotor is formed to swing by the swinging member swinging around the swinging shaft provided on the wall body, the two pressing rotors are moved between the swinging member and the swinging casing. Thus, the structure can be simplified as compared with the conventional wood chip manufacturing apparatus that swings in two stages. Therefore, the number of parts can be reduced, the manufacturing cost and assembling time can be reduced, and the maintenance cost and time can be reduced.

  Further, when a plurality of wooden materials are simultaneously conveyed from the conveying unit, and the wooden materials are roughly piled up to reach the pressing unit, a single upper pressing rotor and a plurality of lower lower rotors, The wooden material is piled up effectively and sent to the cutting part. Therefore, the wooden material of the pile can be held without being disturbed when being cut by the cutting portion.

  In one embodiment of the wood chip manufacturing apparatus, the pressing rotor is driven by a power source different from that of the lower rotor.

  According to the above embodiment, since the pressing rotor is driven by a power source different from that of the lower rotor, the power transmission mechanism is simpler than the conventional wood chip manufacturing apparatus that drives the pressing rotor and the lower rotor with the same power source. it can. Therefore, a wood chip manufacturing apparatus can be obtained in which the number of parts is smaller than that in the prior art, the manufacturing cost and assembly time, the maintenance cost and time are low, and the energy consumption due to transmission loss is small.

  In one embodiment of the wood chip manufacturing apparatus, a power source that rotationally drives the pressing rotor is installed on the swing member.

  According to the above embodiment, since the power source for rotationally driving the pressing rotor is installed on the swing member, the conventional wood chip that connects the motor arranged near the lower rotor to the pressing rotor via the relay shaft The power transmission mechanism between the power source and the pressing rotor can be simplified as compared with the manufacturing apparatus. Further, since the mass of the power source acts on the pressing rotor via the swing member, the pressing force of the wood material by the pressing rotor can be effectively increased.

  In one embodiment of the wood chip manufacturing apparatus, the swing shaft is attached to the wall body so as to be positioned on the near side and above the transport direction of the wood material with respect to the rotation shaft of the pressing rotor.

  According to the above-described embodiment, the wood material that has reached the pressing portion is ridden by the pressing rotor in the process of being sent to the cutting portion side. Here, when the pressing rotor rides on the wooden material, the swinging member swings around the swinging shaft, and this swinging shaft is substantially the same as the rotation axis of the pressing rotor where the wooden material contacts the pressing rotor. Since the pressure rotor is located on the near side and the upper side, the pressing rotor smoothly swings without being locked to the wood material. Therefore, the wood material can be sent to the cutting part without any delay.

  In one embodiment of the wood chip manufacturing apparatus, the cutting unit has a rotary blade having a rotary blade on its peripheral surface and is driven to rotate, and a fixed blade disposed in the vicinity of the rotation path of the rotary blade of the cutting rotor And a sieve body disposed on the outer peripheral side of the cutting rotor.

  According to the embodiment, the wood material is cut by the action of the rotary blade of the cutting rotor that is rotationally driven and the fixed blade in the cutting portion. Of the cut wood material, a material having a size smaller than the size of the screen is transmitted through the screen. Of the wood material that has been cut, the one with dimensions larger than the size of the sieve body remains in the sieve body and is sheared by the rotary blade and fixed blade, or the edge of the rotary blade and sieve body. To Penetrate. In this way, a wood chip having a predetermined size corresponding to the size of the sieve mesh is obtained. Here, as the sieve body, for example, a perforated plate material such as a net, a lattice, or a punching metal can be used.

  In one embodiment of the wood chip manufacturing apparatus, the cutting rotor of the cutting part has a disk in which a plurality of cutting rotors are arranged in the axial direction and the rotary blade is fixed to the outer peripheral part, and at least one set of the adjacent disks The rotary blades are arranged shifted in the circumferential direction.

  According to the above-described embodiment, the plurality of disks forming the cutting rotor are arranged with the circumferential position of the rotating blades shifted in at least one pair of adjacent disks. The load acting on the cutting rotor can be effectively reduced by shifting the cutting timing. Therefore, the cutting rotor can be smoothly rotated, and the driving source of the cutting rotor can be reduced in size.

  In one embodiment of the wood chip manufacturing apparatus, the pressing rotor has an engaging claw whose tip is directed to the cutting portion at the contact portion of the wood material.

  According to the above embodiment, the pressing rotor can be effectively engaged with the wood material by the engaging claw whose tip is directed to the cutting portion at the contact portion of the wood material, and the wood material is effectively sent to the cutting portion. be able to.

  In one embodiment of the wood chip manufacturing apparatus, the lower rotor has an engaging claw whose tip is directed to the cutting portion at the contact portion of the wood material.

  According to the above-described embodiment, the lower rotor can be effectively engaged with the wood material by the engagement claw whose tip is directed to the cutting portion at the contact portion of the wood material, and the wood material is effectively sent to the cutting portion. be able to.

  In one embodiment of the wood chip manufacturing apparatus, the plurality of lower rotors are arranged such that the rotation paths of the engaging claws overlap each other when viewed in the axial direction between adjacent lower rotors.

  According to the above embodiment, the plurality of lower rotors are arranged so that the rotation paths of the engaging claws overlap with each other in the axial direction between the adjacent lower rotors, so that the plurality of lower rotors are made of wood material. The contact interval can be shortened, and can be effectively locked to the wood material and sent to the cutting portion.

  In one embodiment of the wood chip manufacturing apparatus, an actuator for rotating the swing member around the swing shaft is provided on the side opposite to the pressing rotor with respect to the swing shaft of the swing member.

  According to the above-described embodiment, the pressing member can be moved away from the lower rotor by rotating the swinging member around the swinging shaft by the actuator provided on the opposite side of the pressing rotor with respect to the swinging shaft of the swinging member. it can. Thereby, maintenance and inspection of a press rotor and a lower rotor can be performed easily.

  In one embodiment of the wood chip manufacturing apparatus, the cutting part has a casing, and at least a part of the casing rotates with at least a part of the sieve body so as to expose the cutting rotor. .

  According to the above embodiment, by rotating at least a part of the casing of the cutting unit together with at least a part of the sieve body to expose the cutting rotor, the cutting rotor and the rotary blade disposed in the cutting rotor are exposed. Maintenance and inspection can be easily performed.

  In one embodiment of the wood chip manufacturing apparatus, the cutting part is disposed around the cutting rotor, and has a scaffold in which a cutting piece formed by cutting the wood material with the rotary blade is permeable.

  According to the above-described embodiment, the operator can easily approach the cutting rotor and the sieve body inside the cutting portion when the operator gets on the scaffold arranged around the cutting rotor, so that maintenance and inspection work can be performed. It can be done easily.

  The wood chip manufacturing apparatus according to an embodiment includes a carry-out portion that is disposed below the pressing portion and the cutting rotor and carries a cutting piece formed by cutting the wood material.

  According to the embodiment, the cut pieces of the wood material cut by the cutting rotor can be effectively collected and carried out by the carry-out unit.

It is a schematic diagram which shows the woody chip manufacturing apparatus of embodiment of this invention. It is a longitudinal cross-sectional view of a wooden chip manufacturing apparatus. It is a plane sectional view in the press rotor of a wood chip manufacturing device. It is a plane sectional view in the lower rotor of a wood chip production device. It is a cross-sectional view of a wooden chip 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 rotor disk which comprises a cutting rotor. It is sectional drawing of a rotor disk. It is a front view of a cutting rotor. It is a front view which shows the other example of a cutting rotor. It is a schematic diagram which shows the operation | movement condition of a wood chip manufacturing apparatus. It is a schematic diagram which shows the other operating condition of a wood chip manufacturing apparatus. It is a schematic diagram which shows the conventional wood chip manufacturing apparatus.

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

  The wood chip manufacturing apparatus of the embodiment of the present invention cuts wood materials such as timber, pruned wood, edge materials, thinned wood, and waste wood to produce sawdust and wood chips as wood chips. Drawing 1 is a mimetic diagram showing the woody chip manufacturing device of an embodiment. The wood chip manufacturing apparatus 1 includes a transport conveyor 2 serving as a transport unit that transports input wood material, a pressing unit 3 that presses the wooden material transported by the transport conveyor 2, and a pressing unit 3 that is pressed and sent. The cutting part 5 which cuts the obtained wooden material, and the carrying-out conveyor 7 as a carrying-out part which carries out the wooden chip manufactured by cutting the wooden material by the cutting part 5 are provided.

  The conveyor 2 includes a conveyor belt 21 having a locking portion that is engaged with a wood material, a sprocket 22 that drives the conveyor belt 21, a plurality of support rollers 23 that support the conveyor belt 21, and an upper surface of the conveyor belt 21. Side walls 24 which stand up on both sides of the wall and partition the conveyance path. The transporting conveyor 2 is loaded with a wood material at the start end, and transports the loaded wood material toward the pressing unit 3.

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

  The pressing portion 3 is connected to the end portion of the transport conveyor 2, and the three lower rotors 42, 42, 42 disposed adjacent to the end portion of the transport conveyor 2, and these lower rotors 42, 42, A pressing rotor 41 disposed above 42 and a swinging frame 33 as a swinging member that supports the pressing rotor 41 so as to be swingable.

  The pressing rotor 41 is formed by arranging a plurality of disks 44 in the axial direction, and a plurality of saw-like engagements whose tip portions are inclined in the rotational direction when viewed in the axial direction are formed on the outer periphery of the disk 44. Claws are formed. The plurality of disks 44 constituting the pressing rotor 41 are fixed so that the adjacent disks 44 are shifted so that the cutting edges of the engaging claws are arranged in a staggered manner on the outer peripheral surface. The lower portion of the pressing rotor 41 is rotationally driven in a direction from the conveyor 2 toward the cutting unit 5. The rotary shaft 43 of the pressing rotor 41 is supported by a swing frame 33 via a bearing, and the swing frame 33 swings on two wall bodies 31 located on both outer sides in the width direction of the pressing portion 3. The shaft 32 is swingably supported. The wall body 31 is installed continuously to the side wall 24 of the transport conveyor 2, guides the wood material transported by the transport conveyor 2 and led to the pressing unit 3 between the wall bodies 31, and press rotor 41. The swing frame 33 on which the motor 48 is mounted is supported so as to be swingable.

  The swing frame 33 extends in parallel with the wall body 31 and is located on the inner side of the wall body 31; the ceiling plate 33b connected to the upper edge of the two side plates 33a; The front plate 33c is connected to the front edge of one side plate 33a and the front edge of the ceiling plate 33b and is curved. In the swing frame 33, the side of the conveyor 2 is referred to as a rear side, and the side of the cutting unit 5 is referred to as a front side. The side plate 33a of the swing frame 33 is formed in a shape in which the rear end portion is inclined upward, and the connecting shaft 35 spanned between the side plates 33a on both sides is fixed to the tip of the rear end portion. Yes. One end of a hydraulic cylinder 36 as an actuator is connected to both ends of the connecting shaft 35. When the hydraulic cylinder 36 contracts, the swing frame 33 swings around the swing shaft 32, and the pressing rotor 41 moves away from the lower rotor 42. As a result, maintenance and inspection of the pressing rotor 41 and the lower rotor 42 are possible. A swing shaft 32 supported by the wall 31 is provided between the connection shaft 35 of the side plate 33 a of the swing frame 33 and the rotation shaft 43 in a side view. A motor 48 as a power source for driving the pressing rotor 41 is installed on the ceiling plate 33b. The sprocket 140 connected to the output shaft of the motor 48 and the sprocket 141 connected to one end of the rotating shaft 43 of the pressing rotor 41 are connected by a chain. Thus, since the motor 48 is installed on the swing frame 33 and swings with the pressing rotor 41, the power transmission mechanism can be simplified and the mass of the motor 48 can be applied to the wood material from the pressing rotor 41. Therefore, a large pressing force can be obtained against the wood material. One end portion of the rotating shaft 43 of the pressing rotor 41 protrudes to the outside of the wall body 31 through a slit formed in the wall body 31, and a sprocket 141 is attached to the protruding end portion. The front plate 33c of the swing frame 33 is curved along a trajectory in which the swing frame 33 swings around the swing shaft 32, and prevents the cutting piece from cutting the wood material by the cutting unit 5 from returning. ing.

  The lower rotor 42 is formed by arranging a plurality of disks 46 in the axial direction with spacers interposed between them, and the outer periphery of the disk 46 has a saw-like shape whose tip is inclined in the rotational direction when viewed in the axial direction. A plurality of engaging claws are formed. The plurality of disks 46 constituting the lower rotor 42 are fixed so that the adjacent disks 46 are shifted so that the cutting edges of the engaging claws are arranged in a staggered manner on the outer peripheral surface. Three lower rotors 42 are arranged between the conveyor 2 and the fixed blade 61 of the cutting unit 5 with the rotation shafts 45 facing each other in parallel. The number of lower rotors 42 is not limited to three, and may be any number as long as it is two or more. These lower rotors 42, 42, 42 are arranged such that the axial position of the disk 46 forming the lower rotor 42 coincides with the spacer of the adjacent lower rotor 42. In addition, these lower rotors 42 are arranged so that the disks 46 of the adjacent lower rotors 42 overlap each other when viewed in the axial direction. Thus, the lower rotor 42 is formed so that the rotation paths of the engaging claws overlap each other when viewed in the axial direction between the adjacent lower rotors 42. As a result, the gap formed between the lower rotors 42 in a plan view is reduced to prevent the wood material from dropping or the cutting pieces from being transmitted. In addition, the interval in contact with the wood material of the lower rotor 42 is shortened so that the lower rotor 42 is effectively locked to the wood material and sent to the cutting unit 5.

  The three lower rotors 42 are driven by a motor 49 arranged on the extension of the rotating shaft 45 of the lower rotor 42 closest to the fixed blade 61. The output shaft of the motor 49 is connected to the rotating shaft 45 of the lower rotor 42 closest to the fixed blade 61 and connected to the adjacent lower rotor 42 via a power transmission mechanism 143 formed of a chain and a sprocket. Has been. The lower rotor 42 adjacent to the lower rotor 42 closest to the fixed blade 61 is connected to the lower rotor 42 closest to the conveyor 2 by a power transmission mechanism 144 disposed on the opposite side of the power transmission mechanism 143 in the width direction. ing. Further, the lower rotor 42 closest to the conveyor 2 is connected to the rotating shaft of the sprocket 22 of the conveyor 2 by a power transmission mechanism 145 disposed on the opposite side of the power transmission mechanism 144 in the width direction. As described above, the single motor 49 is configured to drive the three lower rotors 42, 42, 42 of the pressing portion 3 and the conveyor 2. These three lower rotors 42, 42, 42 and the sprocket 22 of the conveyor 2 are driven to rotate in the same direction. In other words, the three lower rotors 42, 42, 42 are rotationally driven in the direction in which the upper portion where the wood material contacts is directed from the conveyor 2 to the cutting unit 5, and the sprocket 22 of the conveyor 2 is made of the conveyor belt 21. The upper part to be placed is rotationally driven in a direction toward the pressing part 3.

  The pressing rotor 41 has substantially the same width as the lower rotor 42, but has a diameter about twice that of the lower rotor 42. Here, it is preferable that the pressing rotor 41 has a diameter that is greater than 1 and 4 times or less that of the lower rotor 42, and more preferably 1.5 to 3 times that of the lower rotor 42. By making the diameter of the pressing rotor 41 larger than that of the lower rotor 42, it is possible to effectively press the wooden material that has been put in piles, and to effectively prevent the rampage when being cut by the cutting unit 5. Can be prevented.

  The peripheral speed of the pressing rotor 41, the peripheral speed of the lower rotor 42, and the transport speed of the transport belt 21 of the transport conveyor 2 are set to be substantially the same. Here, the peripheral speed of the lower rotor 42 is greater than the transport speed of the transport conveyor 2 and greater than the peripheral speed of the pressing rotor 41, and the peripheral speed of the press rotor 41 is greater than the transport speed of the transport conveyor 2. It is preferable to set a large value. Thereby, the lower rotor 42 and the pressing rotor 41 can promptly receive the wood material conveyed by the conveyor 2 from the conveyor 2 and smoothly feed the wood material toward the cutting rotor 52 of the cutting unit 5. it can. For example, the transport speed of the transport belt 21 of the transport conveyor 2 can be set to 100%, the peripheral speed of the lower rotor 42 can be set to 101.8%, and the peripheral speed of the pressing rotor 41 can be set to 101.4%. Here, the peripheral speed of the lower rotor 42 is set to 100% to 103% of the transport speed of the transport belt 21 of the transport conveyor 2, and the peripheral speed of the pressing rotor 41 is transported of the transport belt 21 of the transport conveyor 2. Preferably, the speed is set to 100% or more and 103% or less of the speed, and the peripheral speed of the lower rotor 42 is set to 100% or more and 101% or less of the peripheral speed of the pressing rotor 41.

  The pressing rotor 41 is disposed at a position overlapping the three lower rotors 42, 42, 42 in plan view. Specifically, in plan view, the rotation shaft 43 of the pressing rotor 41 is disposed at a position slightly shifted toward the fixed blade 61 from the rotation shaft 45 of the lower rotor 42 adjacent to the lower rotor 42 closest to the fixed blade 61. ing. Thereby, in plan view, a part of the lower rotor 42 closest to the fixed blade 61, all of the lower rotors 42 adjacent to the lower rotor 42 closest to the fixed blade 61, and the lower rotor 42 closest to the conveyor 2 It is arranged to overlap with a part. The pressing rotor 41 is arranged such that the rotation shaft 43 of the pressing rotor 41 is positioned between the rotation shafts 45 of the lower rotors 42 at both ends of the plurality of lower rotors 42 in the wood material feeding direction. Just do it. Thereby, the wood material can be effectively sandwiched between the pressing rotor 41 and the plurality of lower rotors 42.

  The clearance between the pressing rotor 41 and the lower rotor 42 is preferably set to 10 to 50 mm, particularly preferably about 30 mm, when the pressing rotor 41 is at the lowest position in the swing range. The clearance between the pressing rotor 41 and the lower rotor 42 can be appropriately set according to the size of the wood material to be input.

  FIG. 6 is a cross-sectional view illustrating the transport belt 21 of the transport conveyor 2, and FIG. 7 is a perspective view illustrating the transport plate 121 constituting the transport belt 21 of the transport conveyor 2. This conveyor 2 conveys the wood material thrown into one end and guides it to the pressing unit 3. The transport belt 21 of the transport conveyor 2 is formed by connecting a plurality of transport plates 121 in a hinge-like manner to each other by a plurality of connecting shafts 124. The conveyance plate 121 includes a plate-shaped conveyance plate main body 122 and a plurality of engagement protrusions 125, 125,... As a plurality of engagement portions fixed to the center of the conveyance plate main body 122. The locking projection 125 has an isosceles triangle shape in the longitudinal direction of the transport plate main body 122 and is locked to the wood material on the transport belt 21 so that the wood material is stably transported. Further, the transport plate 121 is provided alternately on both sides of the transport plate main body 122 in the longitudinal direction, and cylindrical hinge sleeves 123, 123,. · · Have The hinge sleeve 123 and the connecting shaft 124 constitute a connecting portion that connects the conveying plate 121. Further, the conveying plate 121 is provided between hinge sleeves 123 and 123 facing in the width direction of the conveying plate 121, and extends in the width direction and provided with a plurality of substantially rectangular reinforcing ribs 126 and 126 in the longitudinal direction. , .... The conveyor belt 21 is formed by connecting a plurality of conveyor plates 121 in a hinge shape, so that dust adhering to the wooden material to be conveyed, cutting waste of the wooden material, etc. are caught between the conveyor plates 121. Can be effectively prevented, and the wood material can be stably conveyed. The sprocket 22 of the transport conveyor 2 has a trough that fits the hinge sleeve 123 and the connecting shaft 124, and a tooth that fits the back surface of the transport plate 121. The teeth of the sprocket 22 engage with the back surface of the conveying plate body 122, and the valley of the sprocket 22 engages with the hinge sleeve 123 and the connecting shaft 124, thereby causing slippage from the sprocket 22 to the conveying belt 21. The driving force is reliably transmitted without any problems.

  The transport conveyor 2 is formed such that the width of the side wall 24 is large at the start end where the wood material is charged, while the width of the side wall 24 is reduced at a predetermined position near the pressing portion 3, and the connecting portion with the pressing portion 3. Then, the side wall 24 is formed to have substantially the same width as the conveyor belt 21. Thereby, a wood material can be easily thrown in in the start end part of the conveyance conveyor 2. FIG. Further, even if the wood material is diffused and introduced in the width direction at the start end portion, the wood material can be moved inward in the width direction by the shrinking side wall 24, and the wood material is collected on the conveying belt 21 to the pressing portion 3. Can be input properly.

  The end of the conveying conveyor 2 on the pressing portion 3 side is disposed adjacent to the lower rotor 42 of the pressing portion 3. A connecting plate 25 is provided between the end of the conveyor 2 and the lower rotor 42. The connecting plate 25 extends in parallel with the rotating shaft 45 of the lower rotor 42, and the cross section corresponds to the peripheral surface of the lower rotor 42 and the peripheral surface curved along the sprocket 22 at the end of the conveyor 2. It is formed in a substantially inverted triangular shape. The connecting plate 25 is formed in a rectangular zigzag shape so that a side adjacent to the lower rotor 42 can be fitted into a gap between the disks 46 of the lower rotor 42 in a plan view. Further, the connecting plate 25 is formed in a rectangular zigzag shape so that the side adjacent to the conveyor 2 can pass through the locking protrusion 125 of the conveyor belt in plan view. With this transit plate 25, the wood material conveyed by the conveyor 2 is smoothly carried out onto the lower rotor 42.

  FIG. 8 is a view showing a rotor disk 54 constituting the cutting rotor 52 provided in the cutting section 5, FIG. 9 is a cross-sectional view of the rotor disk 54, and FIG. 10 is a front view of the cutting rotor 52. is there.

  The cutting unit 5 includes a cutting casing 51 provided adjacent to the wall 31 of the pressing unit 3, a cutting rotor 52 accommodated in the cutting casing 51, a sieve 63 surrounding the cutting rotor 52, and a pressing unit. 3 has a fixed blade 61 disposed adjacent to the lower rotor 42.

  The cutting rotor 52 is formed by externally fitting a rotor disk 54 as a plurality of disks to a single rotating shaft 53. The rotor disk 54 includes a support plate 151 having an arcuate cutout portion 151a in which a part of a circular outer peripheral portion is cut out. A cutting blade 55 that is a rotary blade and a back blade 56 that is in contact with the cutting blade 55 are provided at a boundary portion between the cutout portion 151 a and the circular outer peripheral portion of the support plate 151. The support plate 151 has a fixing member 152 that fixes the cutting blade 55 and the back blade 56 adjacent to the notch 151a. The fixing member 152 is formed in an L shape. In the L-shaped fixing member 152, a back blade 56 and a cutting blade 55 are sequentially arranged on a bottom portion 152 a corresponding to the L-shaped bottom, and the cutting blade 55 and the back blade 56 are placed on the surface of the cutting blade 55. A fixing plate 153 for fixing is disposed. The cutting blade 55, the back blade 56, and the fixing plate 153 are provided with bolt holes, and the fixing member is fixed by a bolt 160 that is inserted into these bolt holes and the tip portion of which is screwed to the bottom portion 152 a of the fixing member 152. It is being fixed to 152. The cutting blade 55 is fixed to the support plate 151 via the fixing member 152 in a state where the tip protrudes from the tip of the back blade 56.

  The cutting blade 55 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 153. A long hole which is a bolt hole inserted into the shaft portion of the bolt 160 is formed at a position near the base end of the plane of the cutting blade 55. The long hole is formed long in the direction connecting the end face on the cutting edge side of the cutting edge 55 and the end face on the proximal end side, and the protrusion length of the cutting edge of the cutting edge 55 is set so as to be inserted into the bolt 160. It can be adjusted. A tensile spiral hole is formed in the center in the width direction on the other end surface which is the base end side of the cutting edge 55. As shown in FIG. 9, a tensile bolt 158 that introduces a tensile force to the cutting blade 55 is screwed into the tensile spiral hole. The tensile bolt 158 is inserted into an insertion hole formed in the flange wall portion 152b that is connected to the bottom portion 152a of the fixing member 152 at a right angle, and the reaction force of the tensile force is supported by a nut that is locked to the outer surface of the flange wall portion 152b. Is done. A plurality of tension spiral holes and tension bolts 158 may be provided. Two edge adjustment spiral holes are formed on both ends in the width direction of the tension spiral hole on the end face on the proximal end side of the cutting edge 55. A blade edge adjusting bolt 154 for adjusting the protruding length of the blade edge of the cutting blade 55 is screwed into the blade edge adjusting spiral hole. When the cutting blade 55 is attached to the fixing member 152, the blade edge adjusting bolt 154 has its bolt head locked to the inner side surface of the flange wall portion 152 b of the fixing member 152. The screwing length of the blade edge adjusting bolt 154 to the blade edge adjusting spiral hole is adjusted, and the protrusion length of the blade edge adjusting bolt 154 from the end face on the proximal end side of the cutting blade 55 is adjusted, so The distance between the inner surface of the wall part 152b and the end surface of the base end side of the cutting blade 55 is adjusted. Thereby, the protrusion amount of the cutting blade 55 from the support board 151 is adjusted. When the screwing length of the blade edge adjusting bolt 154 to the blade edge adjusting spiral hole is determined, the nut 155 that is screwed to the blade edge adjusting bolt 154 is fastened to the end surface of the cutting edge 55, and the cutting plate 55 is supported from the support plate 151. The amount of protrusion is fixed.

  The back blade 56 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 55. The back blade 56 is in contact with the cutting edge 55 at a surface continuous with the sharp end surface through an acute angle, while the surface continuous with the sharp end surface through an obtuse angle is in contact with the inner surface of the bottom 152 a of the fixing member 152. It is attached as follows. In the plane of the back blade 56, an insertion long hole is formed that is disposed at the center in the width direction and is inserted through the shaft portion of the bolt 160. In a state where the bolt 160 is inserted into the insertion long hole and is fixed to the bottom portion 152a of the fixing member 152, the protruding amount of the tip of the back blade 56 from the support plate 151 can be adjusted. A tensile spiral hole is formed in the center in the width direction on the end face on the base end side which is the base end side of the back blade 56. A tensile bolt 159 for introducing a tensile force to the back blade 56 is screwed into the tensile spiral hole. The tension bolt 159 is inserted through an insertion hole formed in the flange wall portion 152b of the fixing member 152, and the reaction force of the tensile force is supported by a nut that is locked to the outer surface of the flange wall portion 152b. Two back blade adjustment spiral holes are formed on both ends in the width direction on the end surface on the base end side of the back blade 56. A back blade adjustment bolt 156 for adjusting the protruding length of the tip of the back blade 56 is screwed into the back blade adjustment spiral hole. When the back blade 56 is attached to the fixing member 152, the bolt head of the back blade adjustment bolt 156 is locked to the inner side surface of the flange wall portion 152 b of the fixing member 152. The screw length of the back blade adjustment bolt 156 to the back blade adjustment spiral hole is adjusted, and the protrusion length of the back blade adjustment bolt 156 from the end surface on the base end side of the back blade 56 is adjusted. The distance between the inner surface of the flange wall portion 152 of 152 and the end surface on the proximal end side of the back blade 56 is adjusted. Thereby, the protrusion amount of the back blade 56 from the support plate 151 is adjusted. When the screwing length of the back blade adjustment bolt 156 into the back blade adjustment spiral hole is determined, the nut 157 that is screwed to the back blade adjustment bolt 156 is fastened to the end surface of the back blade 56 to support the back blade 56. The amount of protrusion from the board 151 is fixed.

  As shown in FIG. 10, the plurality of rotor disks 54 are arranged so that the rotary shafts 53 are displaced by shifting the circumferential positions of the cutting blades 55 so that the cutting blades 55 are arranged in a spiral direction on the outer peripheral surface of the cutting rotor 52. Fixed to. 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. In addition, the arrangement | positioning shape of the cutting blade 55 in the outer peripheral surface of the cutting rotor 52 may be substantially V shape etc. as shown in FIG.

  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 151 of the cutting rotor 52. On the other hand, when the cut piece to be produced is a wood chip having a dimension of 5 to 65 mm, the peripheral speed of the cutting rotor 52 is preferably set 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 151 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 sieve body 63 surrounding the cutting rotor 52 is formed in a partial cylindrical shape in which a portion connected to the pressing portion 3 is opened, and a plurality of rectangular openings are formed so as to form an umbilical 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 sieve body 63, the cut piece remains between the cutting rotor 52 and the sieve body 63. The cutting piece remaining between the cutting rotor 52 and the sieve body 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 cut wood material is smaller than the size of the opening of the sieve body 63, the cut piece passes through the opening of the sieve body 63 and falls in the cutting casing 51, It is received by the carry-out conveyor 7 provided in the lower part of the pressing part 3. Here, as the sieve body 63, when the cut piece to be produced is sawdust having a dimension 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. Moreover, when the cut piece to be manufactured is a wood chip having a dimension of 5 to 65 mm, the sieve body 63 is a punching metal in which through holes having a diameter of 30 to 65 mm are arranged, or a mesh body having a mesh size of 30 to 65 mm. Or the grating | lattice comprised combining the flat steel 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 sieve body 63.

  The upper part of the cutting casing 51 of the cutting part 5 is formed in an opening / closing part 51a that can be opened and closed with respect to the lower part. On the end surface of the cutting casing 51, a rotation shaft 58 is provided along the lower end edge on the end surface side of the opening / closing part 51a. One end of a hydraulic cylinder 59 is connected to the upper part of the end face side of the opening / closing part 51 a of the cutting casing 51. When the hydraulic cylinder 59 is contracted, the opening / closing part 51a is rotated around the rotation shaft 58. The upper half part of the sieve body 63 is connected to the opening / closing part 51a of the cutting casing 51. When the opening / closing part 51a rotates, the upper half part of the sieve body 63 also rotates together with the opening / closing part 51a. The upper half is exposed. In addition, the opening / closing part 51a of the cutting casing 51 may be formed so as to be provided with a rotation shaft on the side portion of the cutting casing 51 and turn sideways around the rotation shaft. Further, the open / close portion of the cutting casing 51 is not limited to the upper portion, and may be a side portion, a front portion, an upper portion and a side portion, or all of them. Inside the cutting part 5, a scaffold 65 for an operator is provided in front of and below the cutting rotor 52. The scaffold 65 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 cut piece cut by the cutting rotor 52 passes therethrough. It is made possible. As such a scaffold 65, 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.

  The carry-out conveyor 7 is disposed below the cutting casing 51 and the pressing unit 3, and extends below the pulley 72 located substantially below the conveyor 2, the conveyor 2, the lower rotor 42, and the sieve body 63. .., 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 wood chip manufacturing apparatus 1 having the above-described configuration operates as follows. First, the motor 49 of the pressing unit 3 is activated, and the rotational force of the motor 49 is input to the rotating shaft 45 of the lower rotor 42 closest to the fixed blade 61, and via the power transmission mechanisms 143, 144, 145, It is input to the lower rotor 42 adjacent to the lower rotor 42 closest to the fixed blade 61, the lower rotor 42 closest to the conveyor 2, and the sprocket 22 of the conveyor 2. As a result, the conveyor 2 starts the conveying operation, and the portions of the three lower rotors 42, 42, 42 in contact with the wood material start to rotate toward the cutting unit 5. Further, the motor 48 of the swing frame 33 of the pressing unit 3 is activated, and the rotational force of the motor 48 is input to the sprocket 141 of the pressing rotor 41 via the sprocket 140 and the chain, and comes into contact with the wood material of the pressing rotor 41. The part starts to rotate toward the cutting part 5. A motor (not shown) of the cutting unit 5 is activated, and the cutting rotor 52 starts to rotate in the direction in which the tip of the cutting blade 55 faces. Furthermore, a motor (not shown) of the carry-out conveyor 7 is activated, and the carry-out conveyor 7 starts a carrying operation.

  When the operations of the transport conveyor 2, 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 transport conveyor 2. The input wood material W is conveyed toward the cutting rotor 52 by the conveyor 2 as shown in FIG. When the wood material W reaches the pressing portion 3, the wood material W is transferred from the conveyor 2 to the lower rotor 42 and is sent toward the cutting rotor 52 by the lower rotor 42. When the wood material W reaches the pressing rotor 41, as shown in FIG. 13, the pressing rotor 41 rides on the wood material W, and accordingly, the swing frame 33 swings around the swing shaft 32. The mass of the motor 48 and the swing frame 33 acts on the wood material W. When the wood material W1 rides on the pressing rotor 41, it is sandwiched between the pressing rotor 41 and the lower rotor. The wood material W is fed to the cutting rotor 52 by the rotational force of the pressing rotor 41 and the lower rotor 42 while being sandwiched between the pressing rotor 41 and the lower rotor 42. Therefore, the wood material W is sheared by the cutting blade 55 and the fixed blade 61 of the cutting rotor 52 in a state where the wood material W is sandwiched between the pressing rotor 41 and the lower rotor 42 and the driving force in the feeding direction is applied. The sawdust and wood chips having a predetermined dimension can be stably produced without causing a violence.

  Thus, according to the wood chip manufacturing apparatus 1 of the present embodiment, the wood material is pressed by the single pressing rotor 41, and the pressing rotor 41 can swing around the swing shaft 32. The wood material of various dimensions can be stably pressed by the pressing rotor 41. In particular, when the wood material is piled up and guided to the pressing portion 3, the cutting wood portion is effectively sandwiched between the single pressing rotor 41 and the three lower rotors 42 to cut the cutting portion. 5 can be sent. Therefore, it is possible to stably cut the wooden material with the cutting rotor 52 while preventing rampage. As a result, it is possible to stably manufacture a cut piece having a uniform size. Here, the total mass of the pressing rotor 41, the motor 48, and the swing frame 33, and the load applied to the wood material from the pressing rotor 41 is preferably 0.5 to 2t, and more preferably 1 to 2. 1.5t. By applying a load of 0.5 to 2 t to the wooden material from the pressing rotor 41, 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 arranged on the swing frame 33.

  Further, the wood chip manufacturing apparatus 1 of the present embodiment is formed such that a single pressing rotor 41 is swung by a swinging frame 33 that swings around a swinging shaft 32 provided on the wall body 31. Therefore, the structure can be simplified compared to the conventional wood chip manufacturing apparatus 101 in which the two pressing rotors 103 and 104 are swung in two stages by the swing member 109 and the swing casing 107. Therefore, the number of parts can be reduced, the manufacturing cost and assembling time can be reduced, and the maintenance cost and time can be reduced.

  In the wood chip manufacturing apparatus 1 of the present embodiment, the pressing rotor 41 is driven by the motor 48, while the three lower rotors 42 are driven by a motor 49 different from the motor 48 of the pressing rotor 41. The configuration of the power transmission mechanism can be simplified compared to the conventional wood chip manufacturing apparatus 101 that drives the pressing rotors 103 and 104 and the lower rotor 105 with a single motor. Therefore, the wood chip manufacturing apparatus of the present embodiment can reduce the number of parts as compared with the prior art, can reduce the manufacturing cost, the labor of assembly, the maintenance cost and the labor, and can reduce the energy consumption due to transmission loss.

  Further, in the wood chip manufacturing apparatus 1 of the present embodiment, the swing frame 33 that supports the pressing rotor 41 so as to swing is disposed inside the wall body 31 that is continuous with the side wall 24 of the transport conveyor 2. The cut piece in which the material is cut by the cutting portion 5 does not leak to the outside of the wall body 31. Therefore, it is possible to effectively prevent the inconvenience that the cutting pieces are scattered around the installation position as in the conventional wood chip manufacturing apparatus 101.

  Furthermore, according to the wood chip manufacturing apparatus 1 of the present embodiment, the swing shaft 32 of the swing frame 33 that supports the press rotor 41 is disposed in front of the press rotor 41 in the transport direction of the wood material. Therefore, when the wood material comes into contact with the pressing rotor 41, the swing frame 33 quickly swings upward. Therefore, the pressing rotor 41 can be swung upward reliably and smoothly. Therefore, for example, when the pressing rotor is supported by a swinging frame around the swinging shaft arranged on the downstream side in the moving direction of the wooden material, the swinging frame is caused to be unsatisfactory and the wooden material is bitten. Inconveniences such as buckling of the swing frame can be effectively prevented.

  According to the wood chip manufacturing apparatus 1 of the present embodiment, a cutting piece having a maximum dimension of 3 mm or more and 65 mm or less can be manufactured using various wood materials such as wood, pruning material, edge material, thinning material, and waste material. it can.

  The wood chip manufacturing apparatus 1 of the present embodiment requires maintenance such as replacement of the cutting blade 55 and adjustment of the protruding length of the cutting edge of the cutting blade 55 with respect to the cutting rotor 52 as the operation time elapses. Further, regarding the sieve body 63, maintenance such as repair of damage and elimination of clogging is required. In these cases, maintenance is performed as follows. First, the opening / closing part 51 a of the cutting casing 51 is swung forward about the rotation shaft 58 to release the inside of the cutting part 5. Subsequently, the operator enters the cutting casing 51 through the opening formed by opening the opening / closing part 51 a and places his / her foot on the scaffold 65. When the operator puts his / her foot on the scaffold 65 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 or cutting blade Maintenance such as replacement of 55 can be easily performed. Further, the clogging of the sieve body 63 arranged on the outer peripheral side of the cutting rotor 52 can be eliminated and the damaged portion can be repaired. When the worker is on the scaffold 65 and the swing frame 33 is swung around the swing shaft 32 by the hydraulic cylinder 36, the pressing rotor 41 rises and approaches the worker. Therefore, the operator can easily maintain the pressing rotor 41.

  In the above-described embodiment, three lower rotors 42 are provided in the pressing portion 3, but any number of lower rotors 42 may be used as long as it is two or more. A pressing rotor 41 having a diameter larger than that of the lower rotor 42 is disposed above the two or more lower rotors 42, and the rotation shaft 43 of the pressing rotor 41 is a rotation shaft 45 of the lower rotor 42 at both ends of the plurality of lower rotors 42. What is necessary is just to arrange | position so that it may be located inside the feed direction of wooden material rather than.

DESCRIPTION OF SYMBOLS 1 Wood chip manufacturing apparatus 2 Conveyor 3 Pressing part 5 Cutting part 7 Unloading conveyor 21 Conveying belt 22 Sprocket 23 Support roller 24 Side wall 31 Wall body 32 Oscillating shaft 33 Oscillating frame 36 Hydraulic cylinder 41 Pressing rotor 42 Lower rotor 43 Pressing rotor Rotating shaft 45 Lower rotor rotating shaft 48, 49 Motor 51 Cutting casing 52 Cutting rotor 53 Cutting rotor rotating shaft 54 Rotor disk 55 Cutting blade 56 Back blade 71 Conveying belt 72 Pulley 73 Support roller 61 Fixed blade 63 Sieve

Claims (13)

Wood chip manufacturing apparatus comprising: a transport unit that transports a wood material; a pressing unit that presses the wood material transported by the transport unit; and a cutting unit that cuts the wood material that is pressed and sent by the pressing unit. In
The pressing part is
A wall body connected to the side wall defining the conveyance path of the wooden material of the conveyance unit;
A swing member disposed inside the wall body so as to be swingable via a swing shaft attached to the wall body,
A single pressing rotor that is pivotally supported by the rocking member and presses the upper portion of the wood material conveyed by the conveying device, and sends the wood material toward the cutting portion,
A wood chip manufacturing apparatus, comprising: a plurality of lower rotors provided below the pressing rotor and supporting the wood material and feeding the wood material toward the cutting portion. In the wooden chip manufacturing apparatus according to claim 1,
The wood chip manufacturing apparatus, wherein the pressing rotor is driven by a power source different from that of the lower rotor. In the wood chip manufacturing apparatus according to claim 2,
A wood chip manufacturing apparatus, wherein a power source for rotationally driving the pressing rotor is installed on the swing member. In the wooden chip manufacturing apparatus according to claim 1,
The wood chip manufacturing apparatus, wherein the rocking shaft is attached to the wall body so as to be positioned on the near side and above the transport direction of the wood material with respect to the rotation shaft of the pressing rotor. In the wooden chip manufacturing apparatus according to claim 1,
The cutting part has a rotary blade on its peripheral surface and is driven to rotate, a fixed blade arranged close to the rotation path of the rotary blade of the cutting rotor, and an outer peripheral side of the cutting rotor A wood chip manufacturing apparatus characterized by comprising a sieve body. In the wood chip manufacturing apparatus according to claim 5,
The cutting rotor of the cutting part has a disk in which a plurality of cutting rotors are arranged in the axial direction and the rotary blade is fixed to the outer peripheral part, and in at least one pair of the adjacent disks, the rotary blades are shifted in the circumferential direction. A wood chip manufacturing apparatus characterized by being arranged. In the wooden chip manufacturing apparatus according to claim 1,
The wood chip manufacturing apparatus, wherein the pressing rotor has an engaging claw whose tip is directed to the cutting portion side in the wood material contact portion. In the wooden chip manufacturing apparatus according to claim 1,
The wood chip manufacturing apparatus according to claim 1, wherein the lower rotor has an engaging claw whose tip is directed to the cutting portion at the wood material contact portion. In the wood chip manufacturing apparatus according to claim 7,
A wood chip manufacturing apparatus, wherein the plurality of lower rotors are arranged so that the rotation paths of the engaging claws overlap with each other between adjacent lower rotors when viewed in the axial direction. In the wooden chip manufacturing apparatus according to claim 1,
A wood chip manufacturing apparatus comprising an actuator for rotating the swing member around the swing axis on the opposite side of the pressing rotor with respect to the swing shaft of the swing member. In the wood chip manufacturing apparatus according to claim 5,
The wood chip manufacturing apparatus, wherein the cutting portion has a casing, and at least a part of the casing is formed so as to rotate together with at least a part of the sieve body so as to expose the cutting rotor. The wood chip manufacturing apparatus according to claim 11,
An sawdust manufacturing apparatus comprising the scaffold, wherein the cutting portion is disposed around the cutting rotor, and a cutting piece formed by cutting the wood material with the rotary blade is formed to be transmissive. In the wood chip manufacturing apparatus according to claim 5,
A wood chip manufacturing apparatus, comprising: a carry-out portion that is disposed below the pressing portion and the cutting rotor and carries out a cutting piece formed by cutting the wood material.

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