JPH0647244B2 - Lumbering method and equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Purpose of the Invention><Industrial field of application> The present invention relates to a method for indexing the diameter of a sawdust in a sawmill and a method for controlling the sawing therewith, By grasping the sawing material until the sawing material is transferred to the feeding rack that is supported at the time of sawing, the diameter dimension of the sawing material is determined, and the optimum processing dimension after that is calculated. The present invention relates to a novel lumbering method and device that improve workability of lumbering work.

<Background of the Invention> In the sawing work, such as sawing logs of raw wood and sawing them into square timber or drums obtained by sawing only the left and right sides, or even sawing into plate materials all at once. Therefore, improvement of efficiency of cutting work is currently required.
However, in this work, the time itself for directly cutting the sawing material with a band saw machine is not extremely long, and there is a certain limit in trying to shorten this time. Rather, it is pointed out that as a factor that hinders the improvement of efficiency, it takes a lot of time to set a series of operations until the sawing material is transferred to the feeding rack and setting the sawing dimension, that is, the stepping dimension of the sawing device. is there.

In such a series of lumbering operations, the method of indexing the dimensions up to the stage before the sawing of the sawdust and setting the sawing dimensions in advance is Japanese Patent Publication No. 45-34759 Method and apparatus therefor ". However, in this prior art, a dedicated measuring device is added to detect the shape of the wood, and the process of grasping and moving the wood is not directly used, and the layout of the entire plant is enlarged. Had to be forced.
In addition, since an optical sensor is used, there is a limit to increase the measurement accuracy in a work environment with a lot of dust, and there is room for improvement in this point as well.

<Technical Items Attempted to Develop> The present invention has been made in view of such a background,
In addition to streamlining the preparatory work for sawing, which required a long time, specifically the setup work such as sizing of sawing material and setting of sawing dimension, The present inventors attempted to develop a new lumbering method and device that skillfully utilize the process of gripping and moving, and can also measure the size of the sawed wood all at once during this process.

<< Structure of the Invention >><Means for Achieving the Purpose> That is, in the lumbering method according to the first invention of the present application, the sawdust is transferred to the movement start position of the feeder stand, and the sawware is held by this feeder stand. After that, in a series of lumbering methods of moving the material feeding stand toward the sawing device and performing predetermined sawing, in supplying the sawing material, the side material of the sawing material is fed by the supply moving device of the sawing material. When grasping a part and moving it in a suspended state, and when grasping with a supply moving device, the diameter dimension of the cutting material is calculated from the grasping dimension, and the measurement result is preliminarily tabulated as an input value. It is characterized in that the optimum cutting program is selected and the step size of the cutting device is controlled.

Further, the lumbering machine as the second invention of the application transfers the sawing material to the movement start position of the material feeding platform, holds the material by this material feeding platform, and then directs the material feeding platform to the material cutting device. In a device for performing a series of sawmilling processes for performing a predetermined sawing operation, the supply moving device includes a gripping device that moves toward and away from the sawing movement start position of the material feeding rack, and the gripping device is a sawing material. And a clamp device for suspending the side body of the clamp body in a grasping state, and a measuring device for detecting the gripping size of the clamp body which is substantially the diameter of the cutting material. The present invention is characterized by comprising a control device which inputs an output to calculate an optimum cutting dimension and outputs a step control signal of the cutting device based on the calculated data.

The above objects are intended to be achieved by these inventions.

<Operation of the Invention> The gripping device in the supply moving device grips each of the sawdust materials, and holds the side trunk part thereof in a suspended state. Then, the sawdust is transferred from the supply source side to the saw move start position.
At this time, the diameter dimension is determined from the state in which the sawing material is gripped, and the cutting mode is determined from the measurement result.

<Examples> The present invention will be specifically described below based on illustrated examples. First, an apparatus of the present invention will be described, and then an operation mode of the apparatus will be described, and a method of the present invention will also be described. The basic configuration of this embodiment has already been filed by the applicant.
This is the same as the series of devices filed as "material feeding method and device for sawmilling device" in JP-A-62-270884 (JP-A-1-113201). By the way, when supplying the sawing material A to the sawing machine, this apparatus makes a plurality of sawing materials A stand by in a constantly positioned state so that the transfer to the material feeding rack can be sequentially performed without interruption. Therefore, the supply of the sawdust A is made efficient. Of course, the application target of the present invention is not limited to such a type of device, and a conventional device for gripping and supplying the sawing material A may be provided only in a single unit. Absent. First, reference numeral 1 is a sawmill device to which the present invention is applied, and this refers to the entire series of devices during the time when the sawdust A is supplied and sawed. Therefore, the sawing machine 1 is composed of a band saw machine 2 as a sawing machine, a material feeding stand 3 for supporting and moving the sawdust material A to the sawing position of the band saw machine 2, and a material supplying device 4. Each of these members will be described below. As an example, the band saw machine 2 serving as a sawing device is a double saw band saw machine, and the band saw machines 2 having the same configuration are used in opposition to each other. However, the grinding device is not limited to such a double band saw, but a single band saw,
Further, another circular saw machine or an appropriate grinding device capable of performing multiple grindings more than double grinding can be applied. This band saw machine 2 is composed of a pair of upper and lower tires 5 and a band saw blade 6 suspended on the tire 5 as a main member according to a conventional method. The band saw blades 6 facing each other can be appropriately moved so that the cutting position can be changed. It can be adjusted by the mechanism 7 so as to be able to approach and separate. Next, the material feeding base 3 for supplying the sawing material A to the band saw machine 2 will be described. This material moves on two parallel rails 9 attached to the base 8. That is, a wheel 10 that rolls on a rail 9 is provided below the material feeding platform 3, and a supporting rod 11 that directly mounts the sawing material A is provided above it, and further front and rear end sides of the material feeding platform 3 are provided. There is a core 12 for core punching. Next, the material supply device 4 will be described. The material supplying device 4 supplies the sawing material A to the above-described material feeding base 3 and performs a series of steps until the material is transferred here. The supply moving device 14 for moving is provided with a plurality of units of at least two units. There are a total of three units for the supply moving device 14 in this embodiment, and 14I, 14I when it is necessary to distinguish and explain each unit.
Descriptions will be given with reference numerals such as I and 14III. The unit of each supply moving device 14 is provided with a member for gripping the sawing material A near its front and rear ends,
Since the pair of gripping members arranged before and after the pair of gripping members have substantially the same shape, only one gripping member will be described below. First, reference numeral 15 is a machine frame of the material supply device 4, and an upper frame 16 is provided above the machine frame. The upper frame 16 is provided substantially from the position where the sawdust A is stored to the feed rack 3. For example, a pair of upper and lower guide rails 17 are provided on the upper frame 16 along the longitudinal direction, and a single gripping device 18 is supported on the guide rails 17. This gripping device 18 is one in which various members are mounted on a substantially flat plate-shaped slide frame 19 guided by a guide rail 17, and the movement of the slide frame 19 is, for example, a screw shaft provided between the guide rails 17. This is done by screwing a screw block 21 fixed to the slide frame 19 side with respect to 20. Ie screw shaft 20
The motor M for driving the screw shaft is directly connected to its tip, and the slide frame 19 is moved by the rotation of the screw shaft 20. Of course, as the moving means, a cylinder or the like may be used instead of the screw shaft 20. A clamp body (23) for holding the side body portion of the sawdust in a suspended state is provided for the slide frame (19), and the clamp body (23) can move in a horizontal direction with respect to the slide frame (19). Supported by 24. That is, the clamp body frame 24 has a guide rail 25 formed horizontally with respect to the slide frame 19.
It is configured so that it can be moved in the horizontal direction by being guided to, and the setting of the clamp position in the horizontal direction and the clamp dimension, that is, the dimension of the approaching and separating of the clamp body 23 can be performed. Is moved by the expansion and contraction control of the shift cylinder 26. The clamp body 23 is configured to be movable in the vertical direction as well, and is supported so as to be vertically slidable with respect to the clamp body guide 28 attached to the clamp body frame 24. Is done by the lifting cylinder 29. Then, the gripping action portion 23 of the clamp body 23
In the case of a, the shape may be a mere sawtooth shape, or may be a concave shape in a lateral V shape as shown in FIG. In the case of such a shape, it is preferable to grip the sawdust material A, since the operation can also be a centering operation for the sawdust material A as it is. Of course, the clamp body 23 may be a scissors-shaped member as shown in FIG. Further, with respect to the clamp body 23, in addition to the one for holding the front and rear of the sawdust A and transferring it, for example, as shown in FIG. 7, only one central portion of the sawdust A can be grasped and transferred. It may be one. Of course, in this case, the scissors-shaped clamp body 23
The base is rotated so that the front and rear ends of the ground material A gripped can be shaken in the horizontal direction, or can be moved vertically or horizontally. Further, a sizing device 30 is attached to such a feeding and moving device 14 and provides information such that the diameter of the material A for cutting can be indexed and a predetermined cutting preparation work can be performed. Specifically, a linear encoder is provided in the vicinity of the clamp body 23 to determine the expanded dimension of the clamp body 23 that is substantially the same as the outer diameter dimension of the sawing material A. Then, the diameter information of the indexed cutting material A is input to the control device 31, and the cutting dimension suitable for the outer diameter dimension of the cutting material A is set from various information stored in advance in the data table. Band saw machine 2 accordingly
It outputs a signal to shift this to set the step size of. Of course, in the case of the scissors-shaped clamp body 23 as shown in FIG. 6, a rotary encoder is provided at the rotating base of the clamp body to measure the size of the cutting material. Incidentally, the range in which the supply moving device 14 substantially operates is referred to as a transfer preparation zone Z _1, and this transfer preparation zone Z 1
_{When 1} is further classified, as shown in FIG. 8, it can be classified into a centering portion Z ₂ , a standby portion Z ₃ , and a sawn timber portion Z ₄ . Next, various devices for supplying the sawdust A to the supply moving device 14 will be described. First, reference numeral 32 is a supply moving device.
A storage conveyor provided on the side of 14 in which the sawdust A is stored in sequence and made to stand by. A stopper loader 33 is provided between the storage conveyor 32 and the supply moving device 14, and this is rotated by an appropriate cylinder or the like to stop the supply of the cutting material A on the storage conveyor 32. At the same time, it is reversed at the time of supply so that the sawdust A is received and moved to the next step. The member receiving the cutting material A from the stopper loader 33 is the drum-shaped live roller 34, and the cutting material A is placed in the central concave portion of the drum-shaped live roller 34, and moved appropriately back and forth to set the optimum position. select. This drum-shaped live roller
Between the 34, for example, a pair of front and rear turning chains 35 are provided.The turning chains 35 are configured to project upward from between the drum-shaped live rollers 34, and to be able to retreat downwards when not needed. Along with
As an example, the turning chain 35 is arranged in a V shape as a whole. A stopper 36 is provided on the other side of the drum-shaped live roller 34, and this stopper is also configured to at least project when the sawing material A is transferred from the stopper loader 33 to the drum-shaped live roller 34. Saw wood A
Regulates the position where is rolling. Further drum-shaped live loader
A bearing 37 for heavy material is provided between 34.
This is formed by squeezing a turning chain 39 around a sliding frame 38 which is configured to be depressed between the drum-shaped live rollers 34 with the storage conveyor 32 side as a rotation center and to be projected upward. As a result, when the heavy material A is supplied, it is sent while supporting the lower surface thereof. A skid plate is provided on the free end side of the heavy material support 37, that is, on the support rod 11 side of the material feeding base 3.
40 is provided so that the sawdust A can be smoothly moved.

The specific configuration of the lumbering apparatus of the present invention is as described above, and the method of the present invention will be described below while explaining its operating mode. First, at the start of the work, the sawdust A is fed from the storage conveyor 32 to a relay member as shown in FIG. That is, storage conveyor 32
When the cutting material A stored above is instructed to be supplied next, the stopper loader 33 rotates to loosen the movement of the cutting material A toward the supply moving device 14 side. It is transferred onto the live roller 34. In this state, for example, when it is necessary to move the sawdust A back and forth, a drum-shaped live roller
Drive 34 to adjust its position. The sawdust A to be treated here may be a log-shaped log as shown in FIG. .
From this state, the turning chain 35 further rises from between the drum-shaped live rollers 34, and lifts the sawing material A to move it upward. At this time supply moving device
The gripping device 18 in 14 is standing by with the clamp body 23 provided with a sufficient space immediately above it, and when the sawdust material A rises, the clamp body 23 holds the sawdust material A from both sides. In this way, it is grasped and moved to the material feeding platform 3 side in a suspended state. In this movement, when the heavy material support 37 is provided as shown in FIG. 9, in order to process the heavy material A, the lower surface of the material A should be supported by this. Transfer while maintaining That is, since the load cannot be supported by gripping the sawing material A only with the clamp body 23, the weight of the sawing material A is mostly received by the heavy material bearing body 37 while maintaining the clamped state. Let Of course, the support member 37 for heavy material may be in the form of a rolling chain conveyor or may be in the form of a simple plate-like slide. In the case of a slide, it is desirable to incline the material feeding base 3 side so that it slides down and slide it down to some extent. Applying such a structure to a moving chain conveyor type Good. Incidentally, such a heavy material support 37 is set in a state of being retracted from the drum-shaped live roller 34 to the lower surface when unnecessary. Then, as a characteristic configuration of the present invention, the cutting material A is held by the clamp body 23, and the cutting material A is transferred to the side of the material feeding base 3 by the sizing device 30 until the cutting material A is transferred. The diameter of each is determined and the preparation for the next process is planned in sequence. That is, specifically, the clamp body
A linear measuring encoder 30 for detecting the expansion dimension of 23 measures the expansion dimension of the clamp body 23, which is the substantial diameter dimension of the material A, by a linear encoder, and the controller 31 outputs it as a coded signal. Send that data to. In this control device 31, first, a predetermined calculation is performed in order to set the height for transferring the sawing material A onto the material feeding base 3 in accordance with the measurement data, and the lifting / lowering control of the clamp body 23 or the weight is performed. In the case where the material support 37 is provided, the rising position of the support 37 is determined and the control is appropriately performed. That is, the gripping device 18
The height at which the sawing material A is moved to the material feeding base 3 is set by. In this case, for example, the sixth
As shown in the figure, in the case of the embodiment in which the upper part of the clamp body 23 is configured in a scissor shape around the rotation center, a rotary encoder is used as a measuring device, and the coded measuring data is controlled by the control device 31. To enter. Further, as shown in FIG. 5, when the gripping action portion of the clamp body 23 is recessed in a lateral V shape, when the gripping body is gripped by this, even if the front and rear diameters of the cutting material A are different, the core The matching can be performed regardless of the diameter. Then, the measurement data from the measurement device 30 is used by the control device 31 to further control the step size of the saw blade 2 which is the cutting device in the next step or to select the cutting program. Specifically, the most advantageous cutting state is determined according to the measurement data of the cutting material A, and for example, the material is cut into pieces at once, or two pieces of the back plate are cut off, and an appropriate program is set. At the same time, the cutting dimension, that is, the step size is set, and the cutting program is automatically determined. Of course, in actual operation, a judgment program is provided so that the program determined by the control device 31 can be artificially selected. By the way, as a concrete program, as shown in Fig. 10 (a), only one back plate is ground to make a simple drum material, and as shown in Fig. 10 (b), two back plates are used. The drum material can be obtained by splitting it, or, as shown in FIG. 10 (c), after this, the material feeding base 3 is once returned, and then the remaining two sides are ground to be finished into square timber, or Various programs can be taken such that the plate material is cut all at once as shown in FIG. 10 (d), or further after being cut into square pieces as shown in FIG. 10 (e), the plate material is further removed. In addition, as in the present embodiment, the supply moving device 14
In the case of a type in which three units having the same mechanism are arranged side by side, the above-described operation is continuously performed for each supply moving device 14I, 14II, 14III.

<< Effects of the Invention >> The present invention has a configuration as described above,
Since the diameter dimension of the sawing material A, which was separately performed in the past, was immediately determined by measuring the working dimension of the clamp body 23 during the movement of the sawing material A.
This enables extremely efficient lumbering work and also reduces the number of parts of the device. Especially in the case of optical measurement, it was easy for problems to occur in this kind of work environment where there is relatively much dust, but it is always stable because no such optical measurement method is used. The expected operation can be expected.

[Brief description of drawings]

FIG. 1 is a perspective view showing a lumbering apparatus according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 shows a flow for controlling the step size of a sawing device based on the result of measurement by a holding device. Explanatory drawing, FIG. 4 is an enlarged perspective view showing the gripping device, FIG. 5 is an explanatory view showing another embodiment of the clamp body, and FIG. 6 is an explanatory view showing still another embodiment of the same. FIG. 7 is a perspective view showing an embodiment configured to grasp the center of the sawdust at one place, and FIG. 8 is an explanatory view showing a locus of movement of the grasping device in each supply moving device, and FIG.
FIG. 10 is an enlarged view of the heavy material support, and FIG. 10 is an explanatory view showing various aspects of the grinding program. 1; Sawmill device 2; Band saw machine 3; Feeding rack 4; Feeding device 5; Tire 6; Band saw blade 7; Walking mechanism 8; Base 9; Rail 10; Wheel 11; Support rod 12; 14, 14I, 14II, 14III; supply moving device 15; machine frame 16; upper frame 17; guide rail 18; gripping device 19; slide frame 20; screw shaft 21; screw block 23; clamp body 23a; gripping action part 24; Clamp body frame 25; Guide rail 26; Shift cylinder 28; Clamp body guide 29; Lifting cylinder 30; Measuring device 31; Control device 32; Storage conveyor 33; Stopper loader 34; Drum-shaped live roller 35; Turning chain 36 ; stopper 37; weight materials for scaffold 38;擺動frame 39; turning chain 40; skid plate A;挽割material M; motor Z _1; transfer preparation zone Z _2; Shinde unit Z _3; wait Part Z _4; lumber portion

Claims (2)

[Claims] 1. A cutting material is transferred to a moving start position of a material feeding base, the material is held by this material feeding base, and then the material feeding base is moved toward a grinding device to perform a predetermined grinding operation. In a series of sawing methods for splitting, when supplying the sawdust, the sawdust is fed by a supply moving device to hold the side trunk of the sawdust and moved in a suspended state, and is gripped by the feed moving device. When holding, find the diameter of the sawdust from the gripping dimensions,
A material supply method for a sawing machine, characterized in that an optimal cutting program stored in a table is selected by using the measurement result as an input value to control the step size of the cutting apparatus. 2. The cutting material is transferred to the movement starting position of the material feeding rack, and the cutting material is held by the material feeding rack, and then the material feeding rack is moved toward the cutting device to perform predetermined grinding. In a device for performing a series of sawing processes for splitting, the feed moving device has a gripping device that moves toward and away from the sawing movement start position of the material feeding rack, and the gripping device grips the side trunk of the sawing material. In addition to having a clamp body that suspends in a state, it also has a measuring device that detects the gripping dimension of the clamp body that is substantially the diameter of the cutting material,
Furthermore, the output of the sizing device is input to calculate an optimum grinding dimension, and a control device that outputs a step control signal of the grinding device according to the calculated data is provided. apparatus.