JPH01228801A - Sawing method and deice - Google Patents

Abstract

PURPOSE:To contrive the promotion of efficiency in arrangement operation such as measurement of lumber or setting of sawing dimensions, by a method wherein diametral dimensions of the lumber are calculated through holding dimensions, the optimum sawing dimensions which have been tabled beforehand are selected by making a result of the measurement an input value and a starting program of a sawing device is controlled. CONSTITUTION:Diametral dimensions of lumber A are calculated by a measuring device 30 and the data are sent into a control device 31 as a coded signal before the lumber A is transferred to a material supply rest 3 side by holding the lumber A with a clamp body 23. A height at the time of transferred of the lumber A to the material supply rest 3 is set according to this measured data and control of starting dimensions or selection of a sawing program of a band- swing machine 2 of a sawing device in the next process is performed further in the control device 31. An appropriate program such as sawing down to a board material in one operation or sawing down of two backboards is set and a sawing program is decided automatically by setting its sawing dimensions, namely, starting dimensions.

Description

[Detailed Description of the Invention] (Objective of the Invention) <Industrial Field of Application> The present invention relates to a method for determining the diameter of sawn cracks in a sawmill and a method for controlling sawn splits thereby. The diameter of the sawn material is determined by grasping it until it is transferred to the material feeding frame that supports it during sawing, and the diameter of the sawn material is then determined, and the sawn material is then processed. This invention relates to a new lumber sawing method and device that improve work efficiency.

(Background of the invention) In lumber work, such as sawing raw logs into pieces and sawing them into square lumber or drum lumber with only the left and right sides sawn, or even sawing into board lumber all at once, it is important to reduce the cost of the product. Therefore, there is a current need to improve the efficiency of sawing work.

However, in this work, the time required to directly saw the sawn material with a band saw or the like is not extremely long, and even if an attempt is made to shorten this time, there is a certain limit. On the contrary, it has been pointed out that a factor that hinders efficiency improvement is that it takes a lot of time to complete the series of operations until the sawn materials are transferred to the sending rack and to set the sawing dimensions, that is, the walking dimensions of the sawing equipment. be.

Technical matters for which development was attempted> The present invention was made in view of this background, and
A new sawing method and equipment that can streamline the preparation work for sawing and splitting, which conventionally took time, specifically the inspection of sawn wood and the setup work such as setting the sawing and splitting dimensions. This is an attempt at development.

(Structure of the Invention) Means for Achieving the Objective The first invention of the lumber sawing method of the present invention is to transfer the sawn timber to the movement start position of the material feeding frame, and to transfer the sawn wood to the movement start position of the material feeding frame. After holding, in a series of sawmilling methods in which the material feeding frame is moved toward the sawing and splitting machine τ to perform predetermined sawing and splitting, when supplying the sawn material, the sawn material is gripped and held by a supply moving device. When moving and gripping with the supply moving device, determine the diameter of the sawn material from the gripping dimension, and select the through-threaded sawn material dimension that has been tabled in advance using the measured size as an input value, The present invention is characterized in that the walking program of the sawing and splitting device is controlled, thereby achieving the above object.

Further, the second invention of the N attachment method of the present invention is characterized in that, in addition to the above-mentioned configuration, the sawn material is held in a suspended state by the supply moving device, thereby achieving the above-mentioned object. This is what I am trying to do.

Furthermore, the sawmilling device of the present invention transfers the sawn material to the movement start position of the material feeding pedestal, holds the sawn material by the material feeding pedestal, and then moves the material feeding pedestal toward the sawing and splitting device. , in a device that performs a series of sawing processes that perform predetermined sawing and splitting,
The supply moving device includes a gripping device that approaches and leaves the sawing movement start position of the material feed frame, and the gripping device includes a clamp body that suspends the sawn material in a gripping state, and substantially grinds the material. It is equipped with a measuring device that detects the gripping dimension of the clamp body, which is the diameter of the split material, and further inputs the output of the measuring device to calculate the maximum cutting diameter. The present invention is characterized in that it includes a control device that outputs a walking control signal for the splitting device, thereby achieving the above object.

<Example> The present invention will be explained in detail below based on the illustrated embodiment. First, the apparatus of the present invention will be explained, and then the operation mode of this apparatus will be explained, and the present invention will also be explained in detail. The basic structure of this embodiment has already been proposed by the applicant in a patent application filed in 1983.
No. 2-270884 “Lumber feeding method and device for sawmill equipment”
This is similar to the series of devices filed as . Incidentally, when this device supplies the sawn wood A to the sawmilling machine, it keeps the sawn wood A in a constant position and waits, so that the transfer to the sending rack is performed sequentially and without interruption. This is to streamline the feeding of sawn material +'fA.Of course, the application of the present invention is not limited to this type of device, but the conventional sawed material A There is no problem even if only a single device is provided for grasping and supplying the lumber. First, reference numeral 1 is a sawmilling device to which the present invention applies, and this device is supplied with a sawmiller and is used for sawing. The sawmill equipment 1 refers to the entire series of equipment during splitting, and therefore, the sawmill equipment 1 includes a band saw machine 2 which is a sawing device, a material feeding frame 3 that supports and moves the sawn material A to the sawing position of the band saw frost 2, and a material feeding frame 3. Each of these members will be explained below.The bandsaw machine 2, which is a sawing device, is, for example, a commonly used double sawing band saw machine, and the bandsaw machines 2 having the same configuration are used opposite to each other.

However, the sawing device is not limited to this kind of double sawing band saw, but also a single band JL, other round SM machines, or any appropriate sawing device that can perform double sawing or more. . This band saw machine 2 is equipped with a pair of upper and lower tires 5 according to the conventional method.
and a band saw blade 6 stretched between the band saw blades 6 as the main members, and the opposing band saw blades 6 can be adjusted so that they can be moved toward and away from each other by a walking mechanism 7 so that the sawing position can be changed as appropriate. Next, let's talk about the material feeding frame 3 that supplies sawing V)rA to the bandsaw machine 2.
It moves on two parallel rails 9 attached above.

That is, below the material feeding frame 3 is an upper wheel l which is transferred on the rail 9.
A supporting rod 11 is provided above the supporting rod 11 on which the sawn material A is directly placed, and a core rod spool 12 is provided at both front and rear ends of the material feeding frame 3. Next, the material feeding device 4 will be explained. This material feeding device 4 is installed on the above-mentioned material feeding pedestal 3 with sawn material A.
The system performs a series of processes from supplying the sawn material A to transferring it here, and the supply moving device 14 that directly handles and moves the sawn material A one by one is small (in other words, it is necessary to have multiple units of two or more units). Supply moving device 1 in this embodiment
There are three units in total for 4, - 141.141.14 if it is necessary to explain each unit separately.
The description will be given with an identification code such as 111. Each unit of the supply moving device 14 includes a member for gripping the sawn material A near both its front and rear ends,
Since the pair of gripping members disposed before and after the gripping member have substantially the same shape, the following explanation will be made with respect to only one gripping member.

First, reference numeral 15 denotes a machine frame of the material feeding device 4, and an upper frame 16 is provided above it. This upper frame 16 is provided approximately from the position where the sawn material A is stored to the material feeding frame 3. For example, a pair of upper and lower guide rails 17 are provided along the longitudinal direction of the upper frame 16, and one gripping device 18 is supported on this guide rail 17. This gripping device 18 has various members mounted on a substantially flat slide frame 19 guided by guide rails 17, and the slide frame 19 is moved by, for example, a screw provided between the guide rails 17. This is accomplished by screwing a screw block 21 fixed to the slide frame 19 onto the shaft 20.

The screw shaft 20 has a screw shaft driving motor M directly connected to its tip, and the slide frame 19 is rotated by the rotation of the screw shaft 20.
move. Of course, for this moving means, a cylinder or the like may be used instead of the screw shaft 20. A clamp body 23 is provided for each slide frame, and the clamp body 23 is movable in the horizontal direction with respect to the slide frame 19.
4 is supported. That is, the clamp body frame 24
is configured to be able to move in the horizontal direction while being guided by a guide rail 25 formed horizontally with respect to the slide frame 19, and is used to set the clamp position in the horizontal direction and to set the clamp dimension, that is, the approach/separation dimension of the clamp body 23. This horizontal movement is performed by controlling the expansion and contraction of the shift cylinder 26. The clamp body 23 is configured to be movable in the vertical direction, and is supported so as to be slidable in the vertical direction with respect to a clamp body guide 28 attached to the clamp body frame 24. is performed by the lifting cylinder 29. The holding action portion 23a of the clamp body 23 may have a simple sawtooth shape or may have a horizontal V-shaped concave shape as shown in FIG.

In the case of such a shape, when viewing the sawn material A,
This operation is preferable because it also serves as a centering operation for the split sawn material A. Of course, the clamp body 23 may also be a scissor-shaped member as shown in FIG. 6. In addition to the one that holds and transfers the front and back of the sawn material A, for example, as shown in FIG. Of course, in this case, the scissor-shaped clamp body 2
The base of 3 can be rotated to swing the front and rear ends of the gripped sawn material A horizontally, or can be moved vertically or horizontally. In addition, such a supply moving device 14 is equipped with a measuring device 3.
0 is added to provide information that allows the diameter of the sawn material A to be determined and a predetermined sawing preparation work to be performed. Specifically, a linear encoder is provided near the clamp body 23 to determine the expansion dimension of the clamp body 23 that is substantially the same as the outer diameter dimension of the sawn material A, and this determined sawn material The diameter information of A is input to the control device 31, which sets a sawn size that matches the outer diameter of the sawn material A from various pieces of information previously stored in a data table, and cuts the steps of the bandsaw shop 2 accordingly. Outputs a signal to shift this to set the out dimension. Of course, in the case of a scissor-shaped clamp body 23 as shown in FIG. The area in which this occurs is called the transfer preparation zone 21, and if this transfer preparation zone Z is divided in more detail, as shown in FIG. Various devices for supplying the sawn material A to the zero-order supply moving device 14, which can be classified as the sawn material portion Z4, will be described.

First, reference numeral 32 denotes a storage conveyor provided beside the supply moving device 14, where the sawn material A is sequentially stored and kept on standby. A stopper loader 33 is provided between the storage conveyor 32 and the supply moving device 14, and this loader is rotated by an appropriate cylinder or the like to stop the supply of the sawn material A on the storage conveyor 32. At the same time, at the time of supply, it is reversed so that the sawn material A is received and moved to the next process. The member that receives and takes the sawn IA from the stopper loader 33 is a drum-shaped live roller 34.
Place the sawn material A in the central concave part and move it back and forth as appropriate to select the most convenient position. For example, a pair of turning chains 35 are provided front and rear between the drum-shaped live rollers 34, and the turning chains 35 protrude upward from between the drum-shaped live rollers 34, and are retracted downward when unnecessary. It is configured so that it can be done, and
- As an example, a turning chain 35 is disposed on the V7 side as a whole. And the drum-shaped live roller 34
A stopper 36 is provided near the other side of the stopper 36, and when the sawn material A is transferred from the stopper loader 33 to the drum-shaped live roller 34, a stopper 36 is also provided so that it protrudes from the sawn material A. Regulate the positions to which employees can be transferred.

Furthermore, between the drum-shaped live loaders 34, there is a support 37 for M-weight material.
is provided. This is made up of a turning chain 39 stretched over a biasing frame 38 which is configured to be sunk between the drum-shaped live rollers 34 and protrude upwards with the storage conveyor 32 side as the center of rotation. As a result, when the sawn material A with a heavy tit is supplied, it is fed out while supporting its lower surface.

A skinned plate 4° is provided on the side of the support rod 11 in the free end side feeding material frame 3 of the heavy material support 37, so that movement in a circle of 1 tA is achieved. .

The specific configuration of the profile device of the present invention is as described above, and the method of the present invention will be explained below while explaining its operating mode. First, at the start of the work, the sawn material A is sent to the relay member from the storage conveyor 32, as shown in FIG. In other words, when the next supply instruction is given, the sawn material A stored on the storage conveyor 32 is rotated by the stopper loader 33 and transferred to the supply moving device r of the sawn material IA.
! The movement to L14 Ill is now allowed, and this object is further transferred onto the drum-shaped live roller 34. In this state, for example, if it is necessary to move the sawn material A back and forth, the drum-shaped live roller 34 is driven to adjust its position. Furthermore, the grind that is processed here? A, h A is the second
As shown in the figure, log-shaped logs may be used, or
The turning chain 35 rises from between the drum-shaped live rollers 34 and lifts the sawn material A from this state. Move it above it. At this time, the one-carrying device 218 in the supply moving device 14 is waiting directly above it with a sufficient gap between the clamp bodies 23, and when the sawn material A rises, the clamp body 23 The material A is held from both sides and moved to three material feeding frames in a suspended state. In addition, in this movement, as shown in FIG. Transport it under such conditions. Since it is not possible to support the cylindrical shape of the sawn material by gripping it only with the pounding clamp body 23, the AOM amount of the sawn material is mostly received by the heavy material support 37 while maintaining the clamped state. Let it work. Of course, this support 37 for heavy materials may be in the form of a chain conveyor that transfers, or may be a simple plate-like slide, and in the case of a slide, the material feeding frame 3 side It is desirable to have a configuration in which it slopes downward and slides down to some extent, and such a configuration may be used for a moving chain conveyor type. In addition, a file like this
When the material support 37 is not needed, it is kept retracted below the drum-shaped live roller 34, and as a characteristic feature of the present invention, the clamp body 23 is used to perform sawing, t, t.
Until the sawn material A is transferred to the material feeding frame 3 (pll) while holding the sawn material A, the sawn material A is
The diameter of the material is determined and preparations are made for the next process. Specifically, the expanded size of the clamp body 23, which is the substantial diameter of the sawn material A, is measured by a linear encoder serving as a measuring device 30 that detects the expanded size of the clamp body 23, and the code is determined. The data is sent to the control device 231 as a converted signal. In this control device 31, the height at which the sawn material A is transferred to the material feeding frame 3 is first set according to this measurement data (predetermined calculations are performed, and the elevation control of the clamp body 23 or the above-mentioned If a material support 37 is provided, its increase value is 1.
etc. and perform appropriate control. That is, the height at which the sawn material A is moved to the material feeding frame 3 by the gripping device 18 is set. In this case, for example, in the case of the embodiment in which the clamp body 23 has a scissor-like configuration with the upper part thereof as the center of rotation as shown in FIG. The spear size data is input into the control device R31. In addition, as shown in FIG. 5, when the gripping action part of the clamp body 23 is recessed in a horizontal 1-shape, when the clamp body 23 is held in place by this, the sawn material A
Even if the front and rear diameters are different, alignment can be performed regardless of the size of the diameter. Then, the cutting size data from the measuring device "J!" 30 is used in the control device 31 to further control the walking dimension of the band saw cup 2, which is the sawing device in the next process, or to select the sawing program. Determine the most advantageous sawing condition according to the measurement data of split material A, and set an appropriate program, such as sawing all the boards at once, or sawing off the back board, and set the appropriate sawing condition. The cutting size, that is, the walking size, is set and the sawing program is automatically determined. Of course, during actual operation, the control device ff
A judgment program is provided that can artificially select the program determined by 3. In addition to just drum material,
As shown in Figure O (b), the drum material was obtained by splitting the back plate into two pieces, or as shown in No. 10 [1l (c)], the material feeding frame 3 was temporarily returned. After that, the remaining two sides can be sawed to make a square lumber, or the first
After sawing and splitting the board material all at once as shown in Figure 10(d), and further sawing it into square timbers as shown in Figure 10(e),
Furthermore, various programs such as taking plate materials can be taken. In addition, in the case of a type in which three supply moving devices 14 of the same mechanism are installed in parallel as in this embodiment, the above-mentioned operation is performed continuously for each supply moving device 14I to 14.
It is done every I.

(Effect of the invention) The present invention has the configuration as described above,
The diameter of the sawn material A, which was conventionally done separately, can now be determined immediately by measuring the working dimensions of the clamp body 23 while the sawn material A is being moved, making sawmilling work extremely efficient. This also makes it possible to reduce the number of parts in the device. Especially optical 1
In the case of ★ size, malfunctions are likely to occur in this type of work environment where there is a relatively large amount of dust, etc., but since such optical measurement methods are not used, stable operation is expected at all times. can.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a lumber sawmill according to the present invention, Fig. 2 is a side view of the same, and Fig. 3 shows a flow of controlling the walking dimension of the sawing and splitting device based on the measurement result by the gripping device. FIG. 4 is an enlarged perspective view of the gripping device; FIG. 5 is an explanatory diagram showing another embodiment of the clamp body; FIG. 6 is an explanatory diagram showing another embodiment of the same as above; Fig. 7 is a perspective view showing an embodiment configured to grasp the center of the sawn material in one place, Fig. 8 is an explanatory view showing the locus of movement of the old holding stomach in each supply moving device, Fig. 9 FIG. 10 is an explanatory diagram showing an enlarged view of the heavy material support, and FIG. 10 is an explanatory diagram showing various aspects of the sawing and splitting program. 1; Lumber equipment. 2; band saw machine 3 feeding material mount 4; material feeding device 5; tires 6; band saw blade 7; walking mechanism 8; base 9; rail 10 + wheels 11; support rod 12; ■, 14I [[, 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 portion 24; Clamp body frame 25; Guide rail 26; Shift Cylinder 28; Clamp body guide 29; Elevating cylinder 30; Sizing device 31; Control device 32; Storage conveyor 33; Stopper loader 34; Drum-shaped live roller 35; Turning chain 36; Stopper 37; Heavy material support 38; Vibration Frame 39; turning chain 40; skid plate A; sawn material M; motor Zt i transfer preparation zone Z2; centering section Z3; special equipment section Z4; sawn material section yβ )

Claims (3)

[Claims] (1) After transferring the sawn material to the movement start position of the material feeding frame and holding the sawn material by this material feeding frame, move the material feeding frame towards the sawing and splitting device to make the specified sawing and splitting. In a series of sawmilling methods, when supplying the sawn material, the sawn material is gripped and moved by a supply moving device, and when the sawn material is gripped by the supply moving device, the diameter of the sawn material is determined from the gripping dimension. A lumber feeding method for a lumber machine, characterized in that the step size of the sawing and splitting device is controlled by determining the measurement result and selecting a pre-tabled continuous sawing program as an input value. . (2) The lumber sawing method according to claim 1, wherein the sawn timber is gripped by the supply moving device in a suspended state. (3) After transferring the sawn material to the movement start position of the material feeding frame and holding the sawn material by this material feeding frame, move the material feeding frame towards the sawing and splitting device to make the specified sawing and splitting. In the apparatus for carrying out a series of sawmilling processes, the supply moving device includes a gripping device that approaches and leaves the sawing movement start position of the material feed frame, and the gripping device includes a clamp that suspends the sawn material in a gripping state. It is equipped with a measuring device that detects the gripping dimension of the clamp body, which is essentially the diameter of the sawn material, and further inputs the output of the measuring device to calculate the throughput sawn-split dimension. , and a control device that outputs a walking control signal for the sawing and splitting device based on the calculated data.