JPH0746484Y2 - Log root removing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a log root tension removing device for removing the root tension of logs, and particularly to supplying the logs to the root tension cutting means, cutting the root tension by the root tension cutting means, and the root tension cutting means. The present invention relates to a device devised so as to promote labor saving by automating a series of operations leading to the discharge of logs with cut tension.

[0002]

2. Description of the Related Art Normally, when felling lumber, a so-called "first ball" (a portion of a predetermined length from the root of the timber, a portion above it is sequentially called a "second ball", "Third ball"
In order to secure as long as possible, the timber is cut down at the thick part of the root. The root portion of the timber has a shape in which the diameter is enlarged in a tapered shape with respect to the upper portion, and this is called "rooting". In other words, the timber felled for the above purpose is
The root is provided with the above-mentioned rooting. still,
The same applies to domestic timber and imported timber.

[0003]

The above-mentioned conventional configuration has the following problems. That is, as described above, the felled log has a rooted portion on the root side of the log, that is, a portion in which its diameter is enlarged in a taper shape, regardless of whether it is domestic timber or imported timber. There is a problem in that the smoothing of the subsequent lumbering work is impaired. For example, when trying to convey a log by a roller conveyor or the like, the root of the log may be caught by each roller, which may cause the conveyance of the log to stop. In addition, there is a peeling process for peeling off the logs from the logs during the lumbering process, which is performed by a peeling device such as "Ring Barker (trade name)". In that case, a device having a large diameter is required in accordance with the diameter of the above-mentioned root of the log, which leads to an increase in the size of the peeling device. Further, usually, the remaining material after removing a necessary portion (for example, a square material) from a log is sent to a paper manufacturing process as a wood chip. However, there is a case where the peeling is insufficient for the rooted portion, and therefore, the skin may be mixed in the wood chip. This significantly reduces the quality of the paper obtained by papermaking. Further, the work of removing the skin portion from the wood chip is also extremely difficult. in this way,
The presence of rooting has been a factor causing many problems in the subsequent lumbering process and the like.

The present invention has been made on the basis of the above points. The purpose of the present invention is to make it possible to remove the rooting of a log, and to supply the log, cutting the rooting, and cutting the log for that purpose. It is an object of the present invention to provide a log root removing device that makes it possible to save labor by automating a series of operations such as the discharging of the.

[0005]

In order to achieve the above object, a log root tension removing device according to the present invention comprises a root tension cutting means for cutting the root tension of a log and a log feeding section for holding a plurality of logs. The log separating / supplying means for separating one log and supplying it to the log cutting means, the log discharging means for discharging the log whose root is cut by the log cutting means, and the log separating / supplying means It is characterized in that it is provided with a double feed detecting means for detecting whether or not each of the separated logs is separated and supplied one by one. At that time, it is conceivable to provide a log detecting means for detecting the presence or absence of a log in the log supply unit. It is also conceivable to match the cutting angle of the cutter of the root cutting means with the taper angle of the root covering of the log.

[0006]

First, a plurality of logs are held in the log supply section, and one of the logs is separated by the log separating / supplying means and supplied to the root cutting means. The root cutting means removes the log by cutting the root. The logs whose roots have been cut and removed are discharged by the log discharging means. These operations will be repeated automatically. Then, at that time, whether or not the logs are reliably supplied one by one by the double-feed detection means, and when the logs are double-fed, for example, a measure such as stopping the apparatus is taken. There is.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a plan view showing the overall configuration of a log root removing device according to this embodiment. First, there is a butt end cutter 1 as a root cutting means. In front of the butt end cutter 1 (downward in the figure), a plurality of logs 3
There is a log supply unit 5 that holds the
The log separating / supplying means 7 for separating the logs 3 from the plurality of logs 3 one by one and supplying the separated logs 3 to the butt end cutter 1.
Is installed. Further, a log discharging means 9 for discharging the logs 3 whose roots have been cut and removed by the butt end cutter 1 is installed.

First, the structure of the butt end cutter 1 will be described. The butt end cutter 1 is configured as shown in FIGS. 3 to 6. First, there is a base 11, and on this base 11 on the right side in FIGS. 3 and 4,
A cutter 13 for cutting and removing the rooting of the log 3 is installed. The cutter 13 is driven by a drive motor 15. In this embodiment, the cutter 13 is assumed to be constantly rotating when the device is turned on. That is, the rotating body (for example, pulley) 17 is fixed to the output shaft 15a of the drive motor 15. On the other hand, the cutter 13
Is rotatably supported by bearings 19 and 21, and has another rotating body (for example, a pulley) 23 at one end thereof.
Is stuck. An endless body (for example, a belt) 25 is wound around the rotating bodies 17 and 23. Then, by rotating the drive motor 15, the cutter 13 is rotated via the rotating body 17, the endless body 25, and the rotating body 23. Further, in the case of the present embodiment, the cutting angle of the cutter 13 is set as an angle close to the taper angle of the root of the log 3. That is, as shown in FIG. 3, the axial center line b of the cutter 13 is inclined by α ° with respect to the horizontal line A, so that the cutter 13 is made to follow the root 3a of the log 3. .

3 and 4, three live rollers 27, 29, 31 are provided on the base 11 and on the left side of the drawings.
Is rotatably installed. These three live rollers 27, 29, 31 are configured to be rotated by the drive motor 33. That is, the rotating body 35 is fixed to the output shaft 33a of the drive motor 33. On the other hand, a rotating body 37 is fixed to the live roller 27. An endless body 39 is wound around the rotating bodies 35 and 37. Therefore, when the drive motor 33 rotates, the live roller 27 rotates. Further, another rotating body 41 is fixed to the live roller 27, and a rotating body 43 is also fixed to the live roller 29. An endless body 45 is wound around these rotating bodies 41 and 43. Therefore, when the live roller 27 rotates, the live roller 29 also rotates in the same direction. Further, another rotating body 47 is fixed to the live roller 29, and a rotating body (not shown) is also fixed to the live roller 31. These rotating bodies 47,
An endless body 49 is wound around a rotating body (not shown).
Therefore, when the live roller 29 rotates, the live roller 31 also rotates. That is, when the drive motor 33 rotates, the three live rollers 27, 29, 3
1 is rotated in the same direction and the supplied log 3 is cut by the cutter 13
It is to send in the direction. A pulley or belt may be used as each of the rotating bodies and endless bodies.

Here, the above-mentioned live rollers 27, 29, 3
1 will be described in more detail. As shown in FIG.
8 is installed on the hydraulic cylinder mechanism 30.
Are linked to. Then, this hydraulic cylinder mechanism 30
Is appropriately driven to perform an elevating operation (actually, an elevating operation is performed by a rotating operation with one end side in the axial direction as a rotation center). When the logs 3 are supplied by the log separating / supplying means 7, the live rollers 27, 29, 3 are used.
Raise 1 to make it acceptable. After that, the live rollers 27, 29, 31 are rotated in the forward direction, and the received log 3 is supplied to the cutter 13 side. At that time, the sensor 32
Detects the end of the log 3, thereby stopping the forward rotation of the live rollers 27, 29, 31. And
The live rollers 27, 29, 31 are lowered to transfer the log 3 to the log rotating means side described later. Then, when the predetermined root cutting is completed, the live rollers 27, 2 are again pressed.
The logs 3 are moved to the side opposite to the cutter 13 by raising 9 and 31 and reversing them. Then, the sensor 34 (or the sensor 36) detects the end of the log 3 to stop the operation. Now, the log 3 can be discharged. After that, this is discharged by the log discharging means 9. Further, the sensors 32, 34, 36 are all of the optical type, but are not limited thereto. In addition, the sensor 34,
The proper use of 36 is determined depending on how far the log 3 is returned in relation to the discharge section side.

3 and 4, a log rotating means 51 for rotating the supplied log 3 and a log pressing means 53 are installed on the base 1 at a substantially intermediate position in the left-right direction. The configurations of the log rotating means 51 and the log pressing means 53 will be described. First, the log pressing means 53 has an arm 55 as shown in FIGS. 5 and 6.
A pressing roller 57 is attached to the lower end of the arm 55 on the lower end side. This pressing roller 57
Is a pair of rotating bodies 59 and 61, and a pair of these rotating bodies 5
It is composed of an endless body 63 wound around 9, 61. On the other hand, the drive motor 65 is installed at another location, and the output shaft 65 a of the drive motor 65 has a rotor 67.
Is stuck. In addition, in other places, the rotating bodies 68, 70
Are coaxially installed, and an endless body 72 is wound around the rotating bodies 67 and 68. An endless body 69 is wound around the rotating body 70 and the rotating body 59. Therefore, when the drive motor 65 rotates, the pressing roller 57 also rotates.

A hydraulic cylinder mechanism 71 is installed, and the rod 55a of the hydraulic cylinder mechanism 71 is connected to the arm 55 via a link 73.
Then, by appropriately driving the hydraulic cylinder mechanism 71, the arm 5 is moved through the rod 71a and the ring 73.
5 is rotated about the rotation fulcrum 75 in the direction indicated by the arrow a in FIG. Then, by rotating clockwise in FIG. 5, it is pressed against the upper side of the log 3,
It has the function of pressing the log 3 and the function of rotating the log 3.

Next, regarding the log rotating means 51, as shown in FIGS. 4, 5 and 6, rotating bodies 77 and 79 are respectively arranged, and these rotating bodies 77 and 79 are endless bodies. 81 is wound. Further, another rotary body 83 is coaxially fixed to the rotary body 79, and the other rotary body 91 fixed to the rotary body 83, the rotary body 85, and the output shaft 65a of the drive motor 65 is also endless. The shape body 93 is fixed. That is, by rotating the drive motor 65,
The log rotating means 51 having the above structure also rotates. Then, the log rotating means 51 comes into contact with the log 3 from the lower side, and imparts rotation to the log 3 from the lower side. That is, the log 3 is pressed and rotated by the pressing roller 57 from the upper side, and is rotated by the log rotating means 51 from the lower side. In this way, the root of the log 3 is cut and removed by the cutter 13 while rotating the log 3.

Further, the cutter 13 described above is constructed so as to be raised and lowered by a hydraulic cylinder mechanism 95 shown in FIG. That is, the bearings 19 and 21 that pivotally support the cutter 13 are installed on the base 97. The base 97 rotates about the rotation fulcrum 99 in the direction of arrow b in the figure. It is the hydraulic cylinder mechanism 101 that rotates this. The base 97 is rotatably connected to the rod 101a of the hydraulic cylinder mechanism 101. Therefore, by appropriately driving the hydraulic cylinder mechanism 101, the rod 1
The base 97 is rotated about the rotation fulcrum 99 via 01a, whereby the cutter 13 is moved up and down. The roots cut and removed by the cutter 13 are discharged onto the belt conveyor 105 via the chute 103 as shown in FIG.
The sheet 5 is conveyed to the discharge unit 107 and discharged there. In addition, although it is a lifting stroke of the cutter 13, the cutter 13 is raised to the position of the contact portion of the log 3 by the substantially log rotating means 51, whereby the root 3a is cut and removed.

Next, the configurations of the log supply unit 5, the log separating / supplying unit 7, and the log discharging unit 9 will be described with reference to FIGS. 1, 2, 7, 8 and 9. First, a frame body 111 is constructed of various steel materials, and a log supply unit 5 that holds a plurality of logs 3 is installed on the upper stage of the frame body 111. The log supply unit 5 is specifically configured as a churn live deck 113. A charance kit 115 is installed on the right side in FIG. 2 of the chain live deck 113, and can be appropriately moved between a position shown by a solid line and a position shown by a virtual line by a hydraulic cylinder mechanism (not shown). Has been done. The chain live deck 113 is rotated by a drive motor 114, and the chase kit 115 is separately rotated by another drive motor 116. The boundary portion between the chain live deck 113 and the chain skit 115 is configured coaxially. For example, the chain skit 115 side and the chain live deck 113 side are connected so as to be separately rotatable via a bearing or the like. There is. Also, the chain live deck 113 above
At the boundary between the chain skit 115 and one of the plurality of logs 3, only one log 3 is chain skit 115
A log stop loader 117 is installed for supplying to the side. The structure of the log stop loader 117 will be described in detail later.

Further, on the right side of the Charns kit 115 in the drawing, a Logs kit 119 is installed. Cutting the roots with this Logs Kit 119
The removed log 3 is taken out from the butt end cutter 1 side and moved to the log discharging means 9 side. The rod skit 119 also operates by a hydraulic cylinder mechanism (not shown). Further, a log discharging unit 9 is installed in the lower stage of the frame 111, and this is specifically configured as a cut material discharging churn deck. Further, a stopper 121 is installed on the cut material discharge chain deck 9. A sensor (not shown) is attached to the stopper 121, and the discharged logs 3 are detected by this sensor to move down to enable the cutting material discharging chain deck 9 to discharge the logs 3.

Next, the log stop loader 117 will be described with reference to FIGS. 7, 8 and 9. The log stop loader 117 includes a pair of claw members 123, 1
23 and a hydraulic cylinder mechanism 125 for driving the pair of claw members 123, 123. Then, by appropriately driving the hydraulic cylinder mechanism 125, the claw members 123, 123 are brought into the state shown in FIG. 7 or the state shown in FIG. That is, in the state shown in FIG. 7, the supply of the plurality of logs 3 is stopped. By driving the hydraulic cylinder mechanism 125 from that state, the claw members 123, 123 are rotated clockwise in FIG. 7. Thereby, only one log 3 located at the head is hooked and supplied to the right side in the drawing. That state is the state shown in FIG. The supplied log 3 is directly supplied to the butt end cutter 1 side by driving the chain skit 115.

A sensor (for example, a limit switch) 127 as a double feed detecting means is installed on the right side of the log stop loader 117 in FIGS. 7 and 8. The sensor 127 detects the logs 3 supplied one by one. For example, when two logs 3 are continuously detected within a predetermined time, it is processed as an abnormality detection and the entire device is detected. Is stopped. That is, it has a function of constantly monitoring whether or not the logs 3 are supplied one by one. Further, as shown in FIG. 9, sensors 131 and 131 as log detecting means are installed on the claw members 123 and 123, respectively. The logs 131 are detected by these sensors 131, 131. Also, this sensor 131,
When the log 3 is detected by 131, the chain live deck 113 is stopped, and when not detected, the chain live deck 113 is driven. If the log 3 is not detected, for example, an alarm lamp (not shown) is made to blink, if the log 3 is not present. Incidentally, reference numeral 1 in the drawing
Reference numeral 20 denotes a drive motor.

The operation will be described based on the above configuration. First, a plurality of logs 3 which are the objects for cutting and removing roots are loaded onto the chain live deck 113. The plurality of logs 3 that have been carried in are sequentially transported on the chain live deck 113, and are stopped by the lock stop loader 117. In this case, the sensor 13
Since the chains 1 and 131 detect the log 3, the chain live deck 113 is stopped. Next, the lock stop loader 117 is actuated and its claw members 123, 123
By this, one log 3 is supplied to the chain skit 115 side. At this time, since the chain skit 115 is in a state as shown in FIG. 8, the supplied log 3 is transferred via the chain skit 115 to the three live rollers 27, 29, 31 on the butt end cutter 1 side. Be transported to. At this time, the three live rollers 27, 29, 31
Is naturally in a raised position.

Next, the logs 3 are conveyed in the direction of the cutter 13 by the live rollers 27, 29, 31 and the leading end thereof is detected by the sensor 32, whereby the feeding operation is stopped. Next, the live rollers 27, 29, 31 are lowered, so that the log 3 is placed on the log rotating means 51, and the pressing roller 57, which has been raised, is lowered and the logs are moved. Press 3 from above. That is, the log 3 is supported by the log rotating means 51 from the lower side, is pressed by the pressing roller 57 from the upper side, and is rotated by the log rotating means 51 and the pressing roller 57. After that, the cutter 13 rises while rotating, and the root of the log 3 is cut and removed. The cutting waste generated by this cutting and removal falls through the chute 103 and is discharged onto the belt conveyor 105. Then, it is conveyed by the belt conveyor 105 and is discharged into the discharging portion 107.

After cutting and removing the roots, the cutter 13 descends and at the same time the pressing roller 57 rises. Then
The live rollers 27, 29, 31 rise and rotate in the opposite direction to return the log 3 to the anti-cutter 13 direction. The sensor 34 (or the sensor 36) detects that the predetermined amount has been returned and stops the returning operation. Next, the log skit 119 rises and the log 3 is moved to the butt end cutter 1
It is raised apart from the live rollers 27, 29, 31 on the side. At that time, since the chain skit 115 is in a state as shown in FIG. 7, the log 3 is the log skit 1
It is discharged from 19 to the log discharging means 9 side. At that time, the stopper 121 is rising, and is lowered by detecting that the log 3 has been received by the sensor. And
When the log skit 119 is lowered, the live rollers 27, 29, 31 are raised and the next log 3 can be received. By repeating the same operation as described above, the log 3 is stretched. Cutting and removal are performed continuously.

According to this embodiment, the following effects can be obtained. First, the operation of cutting and removing the roots of the logs 3 can be automatically performed until the supply of the logs 3, the cutting and removal of the roots, and the discharging of the logs 3. Therefore, it is possible to improve work efficiency and save labor.
Further, since the portion of the log 3 and the root 3a is surely cut and removed, no trouble occurs in the subsequent lumbering process, and a smooth lumbering operation can be realized. In addition, since the leather is not mixed in the wood chips, the quality of the paper produced by the paper manufacturing is improved.

Further, the sensor 127 monitors whether or not the logs 3 are supplied one by one, and the apparatus is stopped when necessary, so that, for example, two logs 3 are supplied at the same time. It is possible to prevent the occurrence of a situation in which the cutting and removing work of the roots is impaired due to the damage. Further, in the case of the above-mentioned embodiment, since the supply portion and the discharge portion of the log 3 are provided in the frame 111 in the upper and lower two stages, there is an advantage that the installation space is small. or,
Since the presence or absence of the log 3 in the log supply unit 5 is monitored and an alarm is output when the log 3 is not present, work efficiency is improved. Further, since the cutting angle of the cutter 13 is inclined by α ° in accordance with the taper angle of the root 3a of the log 3, the root 3a can be reliably removed with a small cutting amount. Further, since the chain live deck 113 is stopped when the log 131 is detected by the sensor 131, the log 3 is locked by the lock stop loader 117.
It is possible to prevent jumping over. Further, if the log 3 is not detected by the sensor 131, an alarm is displayed to that effect, so that it is possible to eliminate the fact that the device is running even though there is no log 3, and the log 3 It is possible to improve the work efficiency by quickly supplying the oil.

The present invention is not limited to the above-mentioned one embodiment. For example, in the case of the above-mentioned one embodiment, the log is supplied from the front side of the butt end cutter as the root cutting means, and is also discharged to the front side. It may be discharged to the side. For example, the live roller may be further extended and arranged on the left side in FIG. 1 and discharged to the left side in FIG. Other than that, the configuration of each unit is not limited to the illustrated one.

[0025]

[Effects of the Invention] As described in detail above, the log rooting removing device according to the present invention can reliably cut and remove the log rooting, and also supply the log, cut and remove the rooting, and discharge the log. It is possible to automate the series of operations up to. Therefore, it is possible to eliminate various problems due to the presence of the roots, improve work efficiency, and save labor. In addition, since the double feed detection means monitors whether or not the logs are supplied one by one,
It is possible to prevent problems caused by double feeding of logs. Further, by monitoring the presence or absence of logs in the log supply unit, it is possible to improve work efficiency. Further, since the cutting angle of the cutter is made to match the taper angle of the root, the root can be reliably removed with a small cutting amount.

[Brief description of drawings]

FIG. 1 is a plan view showing the entire configuration of a log root tension removing device according to an embodiment of the present invention.

FIG. 2 is a side view showing an overall configuration of a log root tension removing device according to an embodiment of the present invention.

FIG. 3 is a front view of the butt end cutter showing the embodiment of the present invention.

FIG. 4 is a plan view of the butt end cutter according to an embodiment of the present invention.

FIG. 5 is a side view of the butt end cutter according to an embodiment of the present invention.

FIG. 6 is a side view of the butt end cutter according to an embodiment of the present invention.

FIG. 7 is a side view showing the configuration of a log supply unit and a log separating / supplying unit according to an embodiment of the present invention.

FIG. 8 is a side view showing the configuration of a log supply unit and a log separating / supplying unit according to an embodiment of the present invention.

FIG. 9 is a view showing an embodiment of the present invention, and is a view showing a configuration of a claw member and a sensor.

[Explanation of symbols]

 1 Butt end cutter (root cutting / removing means) 3 Log 3a Root covering 5 Log feeding part 7 Log separating / supplying means 9 Log discharging means 13 Cutter 127 Sensor (double feeding detecting means) 131 Sensor (log detecting means)

Claims (3)

[Scope of utility model registration request] 1. A rooting cutting means for cutting the rooting of a log,
A log separating / supplying means for separating one log from a log supplying section having a plurality of logs and supplying it to the log cutting means, and a log discharging for discharging a log whose root is cut by the log cutting means. A log root tension removing device comprising: a means; and a double feeding detection means provided in the log separation / supply means for detecting whether or not the logs are separated and supplied one by one. 2. The log root removing device according to claim 1, further comprising log detecting means for detecting the presence / absence of a log in the log supply unit. 3. The log root removing device according to claim 1 or 2, wherein the cutting angle of the cutter of the root cutting means is adjusted to the taper angle of the root of the log. Root removing device.