JPS6112761B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention involves repeatedly reciprocating a material on a table and cutting it with a planer blade, and feeding the material according to the decrease in material thickness accompanying the cutting. This invention relates to a continuous wood cutting device using a finishing planer or the like that allows continuous cutting of materials.

(Prior art) Continuous processing of wood using a finishing planer or the like has been known from Japanese Utility Model Application Publication No. 58-74504, and this method is based on the number of times the workpiece has reciprocated on the material feeding path. When the number of cutting operations set by the operator has been completed, the number of cutting operations is counted by a detection means installed in front of the material feeding path to detect the presence or absence of the workpiece, and the workpiece is transferred to the operator. A cutting counter, a means of comparing the number of cuts,
The relationship between the cutting process number setting means, the flip-flop circuit, and the automatic reciprocating control circuit is devised.
It is recognized that this method has the unique effect of allowing safe and accurate setting of the number of cutting operations and cutting operations, as well as simplification of the circuit.

(Problems to be Solved by the Invention) The conventional device described above can cut the material several times in succession by arbitrarily setting the number of reciprocations of the material. a feeding means for feeding out the material feeding member according to the decrease in the thickness of the material;
Since the machine is not equipped with a controller that detects a decrease in the thickness of the material and causes the feeding means to feed out the material feeding member, if the material becomes thinner due to cutting, the pressing force applied to the material by the material feeding member may be insufficient. This may cause material feeding defects or material to jump out due to inertia when switching the material feeding direction, so in each case, stop the operation of the machine and let the feeding means feed the material.
Since it is necessary to ensure that an appropriate pressure is applied to the material, there is a problem that continuous cutting becomes impossible.

The present invention was made in order to solve the above-mentioned problems.The present invention allows the material to repeatedly move back and forth to continuously cut the material, and when the thickness of the material decreases due to cutting, the material is fed accordingly. Pay out the parts,
It is an object of the present invention to provide a device that can continuously perform highly efficient wood cutting by unattended operation by applying an appropriate material pressing force to a material feeding member at all times.

(Means for Solving the Problems) As shown in the embodiments shown in the drawings, the device according to the present invention includes a table 2 equipped with blades 4 and 5, and a prime mover 20 installed oppositely on the table 2. A material feeding member 19 that reciprocates the material with a reversible drive, and a controller a that selectively sets the number of reciprocating times of the material by the material feeding member 19 so that the cutters 4 and 5 reciprocate and cut the material a desired number of times. automatic feeding means 21 for feeding the material feeding member 19 toward the table 2 according to the decrease in the thickness of the material due to continuous cutting; This device is equipped with a controller a that detects a decrease in thickness and controls the feeding of the material feeding member 19 by the automatic feeding means 28.

(Function) The device configured as described above is a reversible prime mover 20.
When the material feeding member 19 is rotated forward and backward alternately to supply material to the processing gap between this and the table 2, the material feeding member 19 feeds the material from one side to the other onto the table 2 and returns it from the other to the one side. Automatically performs round-trip transport.

The number of times of this reciprocating transfer is arbitrarily set by selectively operating the setting keys ~ in the setting means 26, and the controller a is operated based on this set value.
To perform round trip transportation as many times as desired.

When the material transported back and forth in this manner is cut by the blade, the thickness becomes thinner, and the pressing force by the material feeding member 19 decreases, resulting in poor material feeding. is fed out by the amount that reduces the thickness of the material, and the pressing force is always kept constant.

The feeding of the material feeding member 19 by the automatic feeding means 21 described above is automatically carried out at an appropriate time by a controller a that detects a decrease in the thickness depending on the number of reciprocations of the material, so that it is stable and reliable. This makes it possible to transport materials.

(Example) An example of implementation of the apparatus related to the present invention will be described below based on the drawings.

1 in the figure is the machine body, and a table 2 is provided on the top of the machine, and a groove 3 in the center of the table 2 is formed obliquely or perpendicularly to the material feeding direction, as shown in Figure 2 of the figure.
A sliding plane holder 6 with blades 4 and 5 mounted in opposite directions is fitted into this concave groove 3, and a pinion rack driven by a motor 7 or other reciprocating means 8 is attached to the sliding plane holder 6. or,
As shown in FIG. 3, a circular groove 9 is provided in the center of the table 2, and a knife stock 1 is inserted into this groove 9.
A rotary planer stand 12 to which a cutter 11 is attached is fitted using the rotary planer stand 12, and a rotating means 14 such as a pinion gear driven by a motor 13 is linked to the rotary planer stand 12.

Reference numerals 15 and 15 denote columns erected on one side of the table 2, which support an elevating body 16 projecting onto the table 2 so as to be able to rise and fall freely, and a pair of rollers 17 and 18 are pivotally supported at the front and rear of this elevating body 16. Then, a belt-type material feeding member 19 is stretched around these rollers 17 and 18,
This material feeding member 19 is rotated in forward and reverse directions by a motor 20.

Reference numeral 21 denotes a screw type automatic feeding means linked to the elevating body 16, which is rotated by a motor 22 to adjust the machining gap between the material feeding member 19 and the table 2.

Reference numeral 23 denotes a material thickness detector such as a limit switch installed before and after the elevating body 16;
is turned on by the operator 24 lowered to the material surface to output a material detection signal.

Reference numeral 25 denotes a material edge detector such as a phototube provided on both sides of the table 2 so as to correspond approximately to the center of the material feeding member 19, and is designed to emit a detection signal when the front end and rear end of the material come off. .

Reference numeral 26 denotes a reciprocating frequency setting device for the material, which is incorporated into a control panel 27 attached to the above-mentioned elevating body 16, etc., and is equipped with five setting keys. , when the key is operated, the number of reciprocations of the material is set: 3 times, when the key is operated, 4 times, when the key is operated, the number of reciprocations of the material is set: 5 times, and this set number of times is input to the controller, which will be described later. Automatically perform reciprocating operation.

28 is a material cutting state selector incorporated in the control panel 27 described above, and includes selection keys.
Operating the key performs return cutting in one-way feed of the material; operating the key performs forward cutting in one-way feed; operating the key performs return cutting in reciprocating feed; operating the key performs forward cutting in reciprocating feed; Combined cutting, in which the material is roughly cut several times and then finished cut once or multiple times, is set to reciprocating cutting, in which the material is cut both on the way back and forth when the key is operated, and this setting The state is input to a controller, which will be described later, and the controller automatically performs cutting according to the set state.

29 is a timer, and the material edge detector 2 described above
It is activated by the detection signal of 5, and the material end is
It acts to change the rotation of the material feeding member 19 before it deviates from the material 9, thereby ensuring that the material is reciprocated.

Reference character a is a controller using a known microcomputer, sequencer, etc., into which set values and settings set by the above-mentioned reciprocating number setter 26 and cutting state setter 28 are input, and based on these, the feeding member is controlled. motor 20 that drives 19, automatic feeding means 21
Controls the operation of the power supply control section b that supplies power to the motor 22 that drives the sliding planer stand 6 or the motor 7 or 13 that drives the rotary planer stand 12, etc., so that each operating section operates according to the value or state set. It is something that can be done.

In the case of a material that is cut one way to prevent the reverse grain phenomenon, the apparatus shown in the embodiment sets the number of reciprocations to 5 by operating the key of the reciprocating number setting device 26, and then cutting the cutting state setting device 28. Operate the keys of
Return cutting in the reciprocating feeding of the material is set, and the controller a is adjusted so that the automatic feeding means 21 feeds out the material feeding member 19 in two reciprocations of the material.

When the material feeding member 19 is activated in this way and the material is supplied to the processing gap between this and the table 2, the material is sent to the material feeding member 19, and when the end of the material is removed from the detector 25, the detector 25 detects the material. The edge of the material is detected, the timer 29 is activated, and the edge of the material is detected by the material feeding member 1.
The material feeding member 19 is once stopped before it comes off the 9, and then reversed, the material is returned, and at this time the first cutting of the material is performed by the cutter 5.

When the end of the material being scraped and returned is removed from the detector 25, the detector 25 activates the timer 29, and when the cutting of the material is completed, the material feeding member 19 is temporarily stopped and then reversed. The material is returned again, and is returned by reversing the material feeding member 19 before it comes off the material feeding member 19, and is cut a second time by the blade 5, and when the cutting is finished, the material feeding member 1
9 is reversed after it is stopped once, so during this temporary stop, the controller a uses the automatic feeding means to feed out the material feeding member 19 by the amount that the thickness of the material has been reduced by cutting. The appropriate pressure is maintained to ensure subsequent material feeding, and by repeating this back and forth, cutting is performed 3 times, 4 times, and 5 times in sequence. The material feeding member 19 is fed out by the automatic feeding means 21 every time it reciprocates, and the pressing force of the material by the material feeding member 19 is always maintained appropriately, so that one-way cutting of the material during multiple reciprocating material feedings is continuously performed. make sure to do so.

In addition, in the case of materials that can be cut back and forth because there is little cross-grain phenomenon, cutting can be done both on the forward and return journeys, so the five cuts of the same material described above will be performed by cutting the material three times. Therefore, in this case, operate the key on the setter 26 for the number of reciprocations to set 3.
Set the reciprocation of the material, operate the keys of the setter 28 in the cutting state, set the return reciprocation, and set the controller a to allow the automatic feeding means 21 to feed the material feeding member 19 in one reciprocation of the material. Adjust so that it is done.

In this way, the material feeding member 19 is operated, and the table 2
When the material is supplied to the machining gap between the two, the material is reciprocated by the material feeding member 19, and cut twice by the blades 4 and 5 on the way back and forth, and accordingly, the controller a causes the automatic feeding means 21 to feed the material. The material member 19 is fed out by an amount corresponding to the thickness reduction of the material due to cutting, and also in this case, the pressurizing force on the material is maintained appropriately, and the work of cutting the material by reciprocating the reciprocating feed material is automatically and reliably performed.

In addition, in one-way cutting of the material, the feeding of the material feeding member 19 due to the decrease in the material thickness described above is as follows.
If this is done before the material is fed without being cut, not only will the resistance to the material increase, but also the surface of the material will be rubbed strongly by the table 2. It is preferable to do this after the material has stopped for a while, so that the required pressing force is applied to the material feeding member 19 when the material is fed while being cut.

(Effects of the Invention) The device according to the present invention feeds the material onto a table equipped with a planer blade, and continuously transfers the material by the planer blade while switching the rotational direction of the material feeding member a number of times set by the setting means and reciprocating the material. When the material is cut and the thickness of the material decreases, the controller operates the automatic feeding means to feed the material feeding member, which keeps the pressing force on the material constant to ensure reliable material feeding. Therefore, when the material is fed into the material feeding gap between the material feeding member and the table, when the material approaches the end of the material feeding member, the rotating direction of the material feeding member is changed, and the material is transferred in the opposite direction. In order to perform the operation of moving in the direction, it is moved back and forth through the machining gap, during which one-way or back-and-forth cutting is performed continuously, and when the machining is completed, it is sent out from the machining gap.
During this time, there is no need for any manpower, which results in significant labor savings and increased efficiency.

When the thickness of a material that repeats reciprocation decreases due to cutting, the controller detects this by the number of reciprocations of the material and activates the automatic feeding means, which feeds out the material feeding member and maintains the pressing force on the material at all times. Because it is held properly, the material is reliably and stably transferred even when the material is repeatedly reciprocated many times, and there is no possibility of poor material feeding due to insufficient pressure or material bouncing due to inertia when changing direction. The material may become clogged due to excessive pressure, wear of the material feeding member,
There is no need for redundant power.

It has the following unique effects.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of an implementation of a device related to the present invention. FIG. 2 is a plan view of the trapezoidal sliding plane without the material feeding member shown above, and FIG. 3 is a plan view of the trapezoidal rotating plane same as the above. FIG. 4 is a front view showing a control panel attached to the elevating body same as above. FIG. 5 is a block diagram of the control system. In the figure, 2 is a table, 4 and 5 are cutlery, 19 is a material feeding member, 20 is a prime mover, 21 is an automatic feeding means, 26
is a setter for the number of reciprocations, and a is a controller.

Claims (1)

[Claims] 1. A table equipped with a planer blade, a material feeding member disposed opposite to the table and configured to reciprocate the material by reversible drive by a prime mover, and selectively setting the number of reciprocations of the material by the material feeding member, means for setting the number of reciprocating operations for causing the blade to cut the material a desired number of times back and forth using a controller described later; and automatic feed for feeding the material feeding member toward the table in response to a decrease in the thickness of the material due to continuous cutting. and a controller that detects a decrease in the thickness of the material based on the number of times the material reciprocates and controls the feeding of the material feeding member by the automatic feeding means. cutting equipment.