JPS6282003A - Setter for quantity of cutting of wood cutter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a wood cutting device that has the function of properly cutting even curved wood to obtain the desired dimensions. Related to cutting equipment.

〈Prior art〉 In the conventional wood cutting device, the Utility Model No. 57-5031?
As disclosed in t3-, it is known that the cutting thickness is set by numerical input and the cutter position is automatically adjusted accordingly.

<Problem to be solved by the invention> By the way, it is possible to cut both sides of the workpiece W at once,
l In a double-sided gino cutting device that attempts to achieve the above-mentioned, Determined by the distance between the cutter and the surface plate. For this reason, usually the processed material W
The thickness of the Nosu J load-bearing material is not 8 yellow, which is considered in the uniformly shaped filler material W.

However, the processed material W applied to the cutting device is not necessarily a long rectangular parallelepiped-shaped wood with a regular rectangular cross section, but may be curved as shown in the figure 7 [:A]. If such a material is cut as is, the cut surface f shown in FIG.

On the other hand, in the case of a curved material, it can be assumed that the curvatures of its I and F surfaces are approximately equal, so the filler material W
By cutting the dots evenly, it is possible to produce a rectangular parallelepiped-shaped, evenly cut object. However, in order to uniformly cut the added material W and set its thickness according to the method of tithe-1=・j, it is necessary to first detect the maximum thickness Hz of the material W before cutting. Detection of such a maximum thickness in Hz is impossible by normal one-stage L motion measurement. Therefore, conventional equipment cannot handle such curved materials, and
i? When cutting the curved material (i), there was a high probability of producing defective products and the yield was extremely poor. Although it is possible to adjust the first cutter by trial and error to accommodate cutting of the curved material, such adjustment is time consuming and
This results in the production of defective products and is troublesome.

The object of the present invention is to eliminate such conventional drawbacks and to provide a device for determining the cutting amount by 1 F, which can easily cut an F-shaped material to the appropriate 1 F and obtain the finished dimensions.

Means for Solving the Problems> The present invention provides a first cutter and a side opposite to the first cutter, which is provided on the travel path of the filler material W and whose transverse movement is controlled by a moving motor. and a second cutter arranged therein.

A counter that counts the amount of movement of each cutter and a workpiece W
A plurality of rows of position measuring devices for measuring the distance from the reference position are installed on the mounting table iZ in one direction of the workpiece W, with the detection end in contact with the workpiece W at 5 points. A device for detecting surface unevenness of a pressurized material W is configured by: a numerical input switch for inputting the finished thickness dimension T of the pressurized material W; a selection switch for specifying uniform cutting on both sides; and an equal cutting on both sides by the selection switch. According to the cutting specification, the maximum thickness of the filler material W detected by the surface unevenness detection device described in +ii+
4! The amount of cutting on both sides can be calculated from the thickness and thickness T set using the +iii numerical value input switch.
Specify the calculation as Mx-T)/2, set the count value to the counter, and drive the movement motors of the 7th force and the 2nd cutter to perform the movement according to the count value extinguishing signal of the counter. The present invention is characterized by comprising a drive control means for stopping the motor.

When the pressurizing material W is curved, place the pressurizing material W on the mounting base of the surface unevenness detection device, place the detection end of the position Δ stomach fixing device in contact with the workpiece W, and Measure the distance from the reference position.

At the same time, input the finishing thickness and j width of the addition Y/month W using the number II/cus inch, and specify equal cutting for both tris using the selection switch.

Drive control is controlled by each switch input and measurement input.
Within the device, a predetermined cutting needle is calculated, and the first force, cutter, and second cutter are moved to a designated position by a moving motor.

When the workpiece W is supplied to the cutting device, the upper and lower cylinders are both (M
A cut with a thickness of x-T)/2 is performed.

Therefore, even if the pressurizing material W is curved, cutting into a rectangular parallelepiped shape as shown in FIG. 7 can be performed.

The above-mentioned double-sided cutting can obtain a predetermined J-shaped finishing dimension υ not only from curved wood but also from ordinary rectangular parallelepiped wood. still,
If the pressure material W is tilted and its tilt is large, it may not be possible to cut it into a rectangular parallelepiped shape if both sides of 1111 are cut equally as shown in Figure 6. In this case, it is necessary to cancel the internal uniform cutting designation by operating the selection switch and to specify the normal cutting amount numerically.

<Example> An example in which the present invention is applied to a four-sided wood cutting device will be described below.

In Figure 1.2, A is a surface unevenness detection device,
A loading platform 1 on which a workpiece W is mounted is supported by a support 3, and a support frame 4 erected from the right side thereof supports four position measuring devices 5 at equal intervals in the front-rear direction.

The configuration of the position J11 fixing device 5 will be explained with reference to FIG. is fixed. A detection end 10 is fitted onto the lower part of the mounting member 8 via a spring 9, and the detection end 10 is connected to the mounting member 8 by a spring pin 11. A proximity switch 12 is supported on the mounting member 8, and a shielding plate 13 is protruded from the detection end 10 at a position facing the detection portion of the proximity switch 12. In addition, the mounting member 8 is attached to the support frame 1.
．． The opening of the detection tube 15 supported by external force No. 4 is also connected to the door 16.

In this configuration, the air cylinder 6 is driven to extend the Ron door, its detection end 10 comes into contact with the filler plate material W, and the spring 9 further expands and contracts, causing the g drawing board 13 to move toward the proximity switch lz side. When approached, the proximity switch 12 is turned on. According to the distance traveled by the rod 16 of the detection tube 15 from its retracted position to the stop position 18,
The height position of the workpiece W is detected.

1111: a The air cylinder 6 of the JI+I fixed device 5 is driven by an air source 17 fixed at the bottom of the platform 1.
Uniformly controlled by.

A cutting device B is disposed at the front of the mounting table 1, with a front surface plate 30 (described later) at its material feeding port aligned vertically with the mounting table 1 of the surface unevenness detection device A. Ru.

The configuration of cutting device B will be explained.

Reference numeral 20 denotes a base that is long in the front and back, and a holding frame 21 is disposed on the side surface of the base, and a lowering frame 23 of the first frame 23 is supported on the holding frame 21 so as to be able to be lowered. Said y11 unloading 2
3 is a lifting motor M2 (
It is driven by a moving motor). The y11 lowering rack 23 can also be raised and lowered by a -f movement by a handle 24 linked to the raising and lowering motor M2.

A material feeding device 25 is supported at the front position of the y11 lowering rack 23. The material feeding device 25 includes a material feeding frame in which a drive roll 26a and a driven roll 26b which are belt-driven by a 1f reverse material motor are supported in the front and back, an endless material feeding belt 27 is wrapped around the rolls, and It has a known structure in which a large number of pressure rolls 28 which are urged downward by glue such as air cylinders and springs are disposed inside the material conveying belt 27.

111j At the front of the base 20, a front surface plate 30 with a y1 descending function is disposed, and at the rear thereof, a fixed rear surface plate 31 is disposed. An inclined surface is formed on the lower surface of the front surface plate 30, and an intervening stand 32 having 42 surfaces with the same inclination angle as the inclined surface is disposed at the lower part of the front surface plate 30. 511I11 supported on the front of the stand 20! By screwing the drive shaft of a motor MI (movement motor) to the interposition stand 32 in the wood direction, the interposition stand 32 is moved back and forth by the lifting motor Ml.

In addition, due to the action of the inclined surface, the upper surface of the front surface plate 30 moves up and down. It is possible to adjust the elevation.

An arcuate hole is formed between the ri 77 section surface plate 30 and the rear surface plate 31 at the lower position of the material feeding device 25, and a disc-shaped lower surface cutter 35 is housed in the arcuate hole. This dome canter
35 and the stage X- of the front surface plate 30 defines the cutting thickness of the surface of the workpiece W. Further, the one-plane force center 35 is fixed to the rear surface plate 31 side so as to be always flush with the rear surface plate 31.

Behind the lower cutter 35, a disk-shaped one-sided cutter 36 is held on the lifting frame 23. 1. Menu canter 36
is adjusted by the lowering motor M2 that moves the 97 lowering frame 23, and the thickness of the workpiece W is determined by the distance between the rear constant lR31 and the square canter 36.

In addition, a right front canter 37 and a right rear cutter 38 consisting of a round 11-1 canter rotated by a drive motor are arranged at the front and rear right sides of the surface cutter 36. (A left cutter 39 consisting of a round 114 cutter is disposed on the left side edge of the table 20. The left cutter 39 can be adjusted in width direction movement by a feed motor M3.

Also 111] surface plate 30. On the right edge of the rear surface plate 31,
Rulers 40a, 40b, and 40C are provided to guide the movement of the side surface of the cutting material W along the long direction.

By adjusting the rulers 40a and 40c, the finished thickness of the workpiece W can be determined. That is, the amount of roughening of the right side surface of the workpiece W is defined by the step between the right front cutter 37 and the ruler 40a.

Also, the level difference between the right back cutter 38 and the ruler 40b determines the finishing cutting amount of the right side of the workpiece W, and the width dimension of the workpiece W is determined by the distance between the left cutter 39 and the ruler 40c. .

In addition, the left edge of the base 20-hi is in pressure contact with the left side surface of the workpiece W, and the workpiece W is held by rulers 40a, 40b, 40c.
Suppressing roll devices 41 for pressing sideways are arranged at appropriate intervals. Further, on the elevating frame 23, -1
- Many rows of suppression roll devices 42 for press-contacting the workpiece W to the rear surface plate 31 side are recessed in front and rear positions of the one-sided cutter 36.

As shown in FIG. 5, a slit plate f is fixed to the drive shaft of each of the motors M1, M2, and M3, and detectors +, 2, and 3 are arranged on the outer periphery of the slit plate f.

The detectors KI, 2, and 1 are connected to counters at, C2, and C, respectively, and the counters CI and cz are connected to counters CI and cz each time they pass through the slit of the slit plate f.

It has the function of sending signals to CHI. Therefore, it becomes possible to detect the amount of movement of each cutter using the counters ct, cz, and C3.

43 is a control box for controlling the operation of the device of this embodiment. The control box 43 includes a central controller C.
A PU is built in, and as shown in FIG. Performs drive control.

As shown in FIG. 5, the operation panel 44 of the control box 43 has numerical input keys 46 from l'oj to r9j.
Channel selection key 47 on which ll'cHj is displayed. Start key 48. A key inch panel 45 consisting of a strike, push key 49, etc. is provided.

In addition, the operation f1 plate 44 is equipped with a position for uniform cutting on 1st and 14th surfaces
A display 51 that warns about input & i errors etc. by the changeover switch 50 and the number 41111 person key 46
Toka 1: It's being ripped off.

Furthermore, on the operation panel 44, there are three types of processed materials W! , I
J cutting condition All conditions ED or /f in numbers on the LCD display
\Current value display sections 52a, 52b, 52c and their [1]
Target price display sections 53a, 53b, and 53c are provided.

The current value display section 52a and the target value display section 53a indicate the lower surface cutting ¥h dimension (C)l+j determined by the step between the front surface plate 30 and the lower surface counter 35, and the value h'r9.9
It is possible to display values from mm, 1 to rO, omm j, and (+2) is displayed on the current value display section 52a.

Here, if the front surface plate 30 is at a lower position than the lower cutter 35, f+ or J is displayed, and in the opposite case, f-λ is displayed.

In addition, the current value display section 52b, II target value display section 1 section 53
b is the thickness determined by the distance between the rear surface plate 31 and the 1-face cutter 36 = 1-modulus rCHz, I is made smaller, and the character is displayed with a large spacing, so /999.3 mm, 1~
It is possible to display up to rooo, o, and 1.

The empty frame current value display section 52 c and the It target value display section 53 c reduce the width dimension fcH+,,] determined by the distance between the ruler 40 c and the left cutter 39, and display the large space characters as described above. will be displayed.

Next, the operation of the apparatus of this embodiment will be explained.

First, the workpiece W is
is mounted on the machine, the air cylinder 6 of the Jlll fixing device 5 at each position is driven, and the detection end 10 is brought into contact with the upper surface of the workpiece W. Due to this contact, the shielding plate 13 of the detection end 10 approaches the proximity switch 12 side, and the proximity switch 12 becomes in the ON state 78. For this reason, the amount of extension of the rod 16 of the detection tube 15 is counted by a mechanism (not shown), but when the proximity switch 12 is turned on, the count is amplified and the amount of extension is determined. By detecting the amount of extension of the rod 16, the height of the point of the workpiece W that the detection end 10 abuts is specified.

In this way, the height of the workpiece W is detected at four point positions at equal intervals by the position measuring device 5.

At the same time, the state of the workpiece W is grasped, and if the workpiece W is inclined, the changeover switch 50 is set to the double-sided uniform cutting position X.

Furthermore, press the channel selection key 47]' CHj
, input f2j using the numeric key 46 to set the channel for specifying the finished thickness dimension, and further input the finished thickness dimension T using the ``a'' key 46.

This finished thickness dimension T and the maximum thickness X of the workpiece W detected by the surface unevenness detection device A! From then on, the central control unit C
The cutting value is calculated in the PU, and the cutting thicknesses of both the upper and lower surfaces are designated as (MX-T)/2.

In order to achieve such a cutting thickness, the lower cutter 35 is cut from the front surface plate 30 (Mx-T
The count value of the counter CI of the motor Ml is set so that the motor Ml stops moving when the height reaches the height (cutting amount dimension) equal to )/2. Further, the count value of the counter C2 of the motor M2 is set so that the upper surface cutter 36 stops at a height position equal to the thickness dimension T from the rear chamber a31.

Furthermore, when the calculation of cutter 35.36 is performed, ■
The target value display section 53a shows the lower surface cutting amount dimension (MX-T)/2.
However, the thickness dimension T is automatically displayed on the target value display section 53b.

By the way, there is a limit to the cutting amount of each of the cutters 35 and 36. If this limit value is 5ffi intestine, then 1
Cutting! , 1: If the dimension (MX-T)/2 is set to 5 mm or more, it becomes impossible to cut the required lower surface of the inclined wood. Further, if the minimum thickness Mn detected by the position measuring device 5 is smaller than the finished thickness dimension T, it is not possible to finish the film to a predetermined thickness. Furthermore, the cutting needle size (Ml
l-T)/2 is the maximum thickness of the surface unevenness of the processed material W (Hz -
Mn), a rectangular parallelepiped shape cannot be obtained after cutting. Therefore, in such a case, the display 53 displays an error message to that effect.

After this, the motors Ml and M2 operate, and the front surface plate 30
and lowering of the elevating frame 23 occurs. This amount of movement is input to the counters CI and C2 from the detectors attached to the respective rotating shafts (1 and 2 forces), and the driving of the motors M1 and M2 is stopped as the count values are input to the counters CI and C2. do. This allows the cutter 35.36 described above.
positioning is performed. In this case, the current value display section 5
The numerical values of 2a and 52b are [1 target value display section 53a, 53b
This will match the value of .

In addition, if you want to perform width finishing with this device at the same time, press the channel selection key 47 and input If (:Hj), and use the numerical keypad 46 to input f3j to set the channel for finishing width dimension specification. Then, use the numerical keypad 46 to input the finished width dimension.

When the start key 48 is turned on, the motor M3 is driven and the left cutter 39 is moved to a predetermined position.

After such positioning, when the workpiece W is supplied to the front surface plate 30 and sent forward by the material feeding device 25, the workpiece W is subjected to required cutting.

Incidentally, it is possible to perform uniform cutting on both sides of materials other than curved materials, but when using inclined materials, as shown in Figure 6, the slope of the sloped upper surface is large, and therefore,
Cutting amount dimension (MX-T)/2 is the maximum thickness of surface unevenness (MX
-Mn). In this case,
Switch the thickness changeover switch 50 to the lower surface machining allowance setting position y, press the channel selection key 47 to input F CHI, and use the number planting key 46 to input flj to select the lower surface Jf'lII quantity dimension specification quantum method. After specifying and setting, input and specify the surface cutting amount dimension using the numerical keypad 46, and then select the desired cutting area! By decreasing , the heptad cutting adhesion is increased and the inclined surface is removed.

<Effects of the Invention> As described above, the present invention enables, when the workpiece W is curved, to uniformly cut the upper part of the workpiece W to obtain the required finishing thickness Xj method. Therefore, there are excellent effects such as improved retention and efficient cutting process.

[Brief explanation of drawings]

The accompanying drawings show an embodiment of the invention, with FIG. 1 being a side view;
Fig. 2 is a side view of the surface unevenness detection device A, Fig. 3 is a longitudinal cross-sectional side view of the main parts of the position measuring device 5, Fig. 4 is a perspective view of the cutting device B, Fig. 5 is a wiring block diagram, and Fig. 6 is a side view of the surface unevenness detection device A. Figure A9 is a side view showing the cutting process, and Figure A9 is a side view showing the cutting form of the workpiece W.

Claims (1)

[Claims] A pair of cutters, which are provided on the travel path of the workpiece and whose transverse movement is controlled by a movement motor, and which include a first cutter and a second cutter arranged on the side opposite to the first cutter. A position measuring device is equipped with a counter that counts the amount of movement of each cutter, a stage for placing the workpiece, and a position measuring device that measures the distance from the reference position by touching the detection end to the workpiece. A surface unevenness detection device for the workpiece is configured by installing multiple rows on the platform, a numerical input switch for inputting the finished thickness dimension T of the workpiece, and a selection for specifying uniform cutting on both sides. and a maximum thickness M of the workpiece detected by the surface unevenness detection device by specifying equal cutting on both sides by the selection switch.
From x and the finished thickness dimension T set from the numerical input switch, calculate the cutting thickness of both sides (Mx-T).
/2, sets the counted value in a counter, drives the moving motors of the first cutter and the second cutter, and stops the moving motors in response to the counted value extinguishing signal of the counter. A cutting amount setting device for a wood cutting device.