JPS58183201A - Automatic planer for woodworking - 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] Since the present invention began with the improvement of an automatic chest board for wood processing that returns processed and processed materials to the hands of workers, numerous patent applications have been filed. As a result of further ingenuity, an automatic planer with a fixed table was devised as disclosed in Japanese Patent Application No. 52-13933 (Japanese Unexamined Patent Publication No. 53-99595).

In this invention, the rear-rotating feed roller used for cutting is retracted upward together with the rotary planer body at the end of the cutting process, and the carbon material device on the table side is operated with the stepping interval completely open. The conventional type is designed to return the processed material and is completely effective in preventing damage to the cutting surface, and all operations from feeding the material to carrying out the product can be done in a fixed position. It has advantages not found in previous versions, has a high level of perfection, and has been very well received among users.

The present invention 1 aims to modify the structure of the present invention and further improve it to streamline the structure.In other words, the present invention aims to improve the cutting feed of the workpiece material in all questions in AiI. The present invention is characterized in that the structure is simplified by allowing a single drive device to carry out the processed material, instead of using separate squid drive means.

Embodiments of the present invention will be specifically described below with reference to the drawings.

In Figs. 1 to 3, the reference numeral 1 denotes a frame with an n-shaped corner board, and the northern part of this frame 1 is a material feeding frame 2.
is set. A lower plate-shaped guide 2a is formed on the upper surface of this material feeding frame bene 2, and bearing parts 3a and 31 are provided at the rear ends of m1 (left and right positions in FIG. 2). A pair of driving rollers 4a and a driven lower roller 4b are installed on the roller 3b so as to be freely rotatable. Six reversible drive devices of forward and reverse motor type are connected to the drive lower 4a via a suitable speed range mechanism 5.

The reversible drive device 6 may be replaced with a clutch mechanism interposed between separate forward and reverse drive means.

Reference numeral 7 denotes an endless belt-type material feeding device that is stretched between the driving roller 4a and the driven roller 4b, and its upper material feeding surface 7a is supported on the guide 2a and rotates on a fixed plane. Driven. Note that the structural members of this material feeding device include a steel belt or a non-compressible wooden finger belt. Also, a completely rigid caterpillar conveyor may be used.

Note that reference numerals 8a and 8b are idle roller groups 9.

An auxiliary table composed of a fixed frame IQ
a, it is arranged on the upper surface side of 10tl.

Next, each member placed on the L side corresponding to the material feeding device 7 described above will be explained. Each of these members is connected to a pair of vertical guides 11 provided on both sides of the frame 1 (in the left-right direction in FIG. 3).
A gate-shaped elevating frame 12 is engaged with 11 so as to be able to rise and fall freely.
It is attached and held via the code 13.131d.
A pair of left and right bearing tubes 14 fixedly installed in the central north part of the lifting frame 12 are rotary planes that are rotatably supported by the bearing tubes 13 and 13, and an electric motor 15 is attached to the lower part of the lifting frame 12. It is rotated at high speed in the direction of the treasure. Next, reference numerals 16 and 17 indicate chi-sifs arranged at the front and rear so as to surround the shitengu trunk 14.

Playing force, pressing and pressing rollers 18 and 19 are at least a pair of material pressing rollers disposed on the front and rear sides of the chip breaker 16 and pressure bar 17, that is, before and after the rotary planer 1 and 14, and these rollers The presser rollers 18 and 19 are of free rotation type, and are constructed so that they can act as a cushion by holding together the sphere rings 20S1' and 20, respectively. Although each of these rows is made of an elastic loaf such as rubber or alastik, a well-known serrated sectional iron rower may be used for the front presser row 'y18.

Next, a description will be given of the configuration of the elevation adjustment means that adjusts the elevation of each member such as the rotary planer barrel 14 described above to set the interval between the material feeding surface 7a of the material feeding device 7 and the rotary planer barrel 14, that is, the step interval. .

This lifting/lowering adjustment means is provided with bearing tubes 21 on both sides of the lower part of the frame 1.
and a guide 11.11 which is freely supported only in rotation on 21.
direction feed screws 22 and 22;
．． Nut cylinders 23 and 23 on the elevating frame 12 side that are screwed together with 22, an interlocking shaft 25 that rotates both feed screws 22.22 via a transmission gear means 24.24, and another transmission gear means 26. A control motor 27 that drives the interlocking shaft 25. An external control circuit such as a microcomputer is connected to the system control motor 27 for servo driving, and the stepping interval is digitally set.

Here, an overview of the control system of the motor 27 will be described. First, the external control circuit E (microcombi-y-p>color control circuit) generates a command pulse that commands the rotation speed and rotation angle of the motor 27, and a command pulse that commands the rotation direction. When the code signals are supplied digitally, they are input to the deviation counter B via the pulse shaping and direction discrimination circuit A. ~The deviation counter B integrates the input command pulses according to the sign. The accumulated amount of accumulated pulse train (sludge pulses) goes up the D/A converter and is converted into an analog voltage.Then, this analog 1' voltage becomes the speed command voltage to the motor control section and is used to control the motor. 27 is rotated.

On the other hand, the pulse generator PG attached to the anti-load side shaft (not shown) of the motor 27 generates a pulse train signal proportional to the rotation angle according to the rotation of the motor, and subtracts the droop pulses of the deviation counter B. Here, the deviation counter B and the D/A conversion converter are inverted, and the rotation direction of the motor 27 is determined in advance by the sign signal. When this occurs, the rotation of the motor 26 is stopped, that is, the control motor 26 rotates by a rotation angle proportional to the number of commands).
The servo is clamped by the stop pulse from the position foot. In addition, a tacho generator TO is provided on the shaft on the opposite load side of the motor 27, and the voltage generated from this generator is compared with the voltage value of the command speed, and acts as a correction voltage to give the motor an appropriate rotation speed. do. Therefore, the preset F in the microcomputer mentioned above
By numerically inputting the stepping dimension on the counter, the stepping interval can be set to a desired value.

In one practical example of the present invention, the configuration of the motor control system described above is used to incorporate a retracting stage such as the rotary plane barrel 14, which is capable of cutting the workpiece material. When completed, it is activated to release the stepping interval.

In other words, this device inputs a predetermined number of leaving command pulses with a fixed command sign to the deviation counter B only when the detection switch SW (to be described later) operates, and controls the control motor 27 by a certain amount based on this command value. The straw is driven in the direction of opening the straw during the stepping.

Next, reference numeral 8W is formed between the material feeding unit 7a (including the top of the auxiliary table 8a) and the material pressing rollers 18, 19 (including the extended front part of the front material pressing row 'P18) in the material feeding device N7. At a suitable place on the material conveyance path, for example, a detection switch cut into the front side of the cylinder 14 detects the end of the workpiece material being transferred from the working position on the right side in Fig. 1 to the left side, that is, to the rear Jj. (Right end) A control signal is transmitted after the time set by the timer T has elapsed after detecting overload, that is, the cutting process of the workpiece material is completed, and this signal stops the reversible drive device 6 that drives the material feeding device 7. At the same time, the clocking-out means is driven to open the stepping interval, and then the reversible drive device @6, which is in the (*l) state, is driven in the reverse direction.

Further, this detection switch SW detects the passing of the end of the processed material (the left end of the material) after finishing the cutting process, stops the reversible drive device 6, and also controls the leaving means in the opposite direction to release the step. Reset the interval to the circle's fixed value.

In the above 11 example of the present invention, the setting control of the stepping interval and the opening control of the stepping interval are performed by a closed-loop servo control system including feedback control, but if a stepping motor is used as the servo motor, In addition to adopting an open-loop control method, the configurations described in Utility Application No. 52-3249 and Japanese Patent Application No. 13933-1981, which were filed by the inventor earlier, may be adopted as appropriate for these controls. can do. Further, although the operation of the control system and the control of the reversible drive device are performed by the same detection switch 8W, it goes without saying that these switches may be provided separately and controlled independently.

In addition, in the above embodiment, the operation of the town reverse drive device @6 was controlled by the # spreading means using a timer circuit, that is, by time control, but instead of this time control method, the transfer distance of the workpiece material was controlled. It is also possible to configure the delay means using a length measurement circuit that digitally detects the distance, so that the operation can be controlled by so-called distance control.

With this configuration, the time required to adjust the timer when changing the feed rate, which varies depending on the material of the processed material, or changing the power frequency (in Japan, there are 50 areas and 60 an areas). There are advantages over the control type.

Since the structure of the automatic planer for wood processing according to the present invention is as described above, the required step size is numerically set in the preset counter, the control motor 27 is driven, and the material feeding device 7 feeds the material. After setting the distance between 7a and the m-carrying cylinder 14 as desired, and driving the material feeding device M6 backward by rotating the vertical reverse drive device @6, the auxiliary tape/L'g of the stationary frame 10a is set.
When the material to be added is supplied to a1- and fed backwards, that is, toward the rotary plane tllnl 14, the material is subjected to the transfer action of the material feeding device 7 and the pressure and cushioning action of the material pressing rollers 18 and 19. It is transported rearward in an easy manner, and during the transport, one part of it is cut by a rotary button 14 and finished to the required step size.

When the cutting process is completed, the rotation of the material feeding device 70 is stopped by the detection switch SW, and then the control motor 27 is stopped.
is driven and the stepping interval is widened to 12 rotations%]l
1l1414, material feeding row → 18.19, etc. are retracted upward from the cutting surface, and in this state, the material feeding device 7 is reversed or rotated forward, so the processed material is Without any contact with the surfaces, the material is fed from the rear auxiliary table 10111-, through the material feeder 7a, to the front auxiliary table 10a, and returned to the operator's hand.

As is clear from the description of the embodiments, the present invention utilizes the 1F reverse rotation of the material feeding device placed on the lower side to transport the material reciprocally. Even if the material holding roll is actively driven in a fixed direction, there will be no problem.

As described in detail above, the automatic planer for wood processing of the present invention rotates the material feeding device disposed on the r side in 1F reverse direction using a reversible drive device, and utilizes both forward and reverse rotational drive. This system is designed to feed the material to be processed and return the material after processing, making the configuration even simpler than the conventional type, and also allows a series of control operations to be performed in a timely manner, making work more efficient. It is possible to measure the In addition, according to the present invention, the contact objects such as the rotary button and the material feeding roller are moved upward by one point to completely open the material feeding interval, so that the work cloth can be maintained perfectly. The effect can be fully demonstrated especially when processing soft materials. In addition, the entire process from feeding the material to determining the grain amount of the processed material can be performed by the action of the material feeding means, and furthermore, the processed material is automatically transported to the feeding position, so that the processing of the material can be done easily. This has the advantage that it can be done in the same part and that the work can be done at the identification position. Moreover, since there is no process to store even a small amount of material, it is possible to achieve continuous work, reduce loss time, and achieve efficient operation.

[Brief explanation of the drawing]

The drawings show an embodiment of the table-fixed automatic filling plate according to the present invention, and FIG. 1 is a side view showing the overall configuration.
The figures are the same (Detailed side view Figure 3 is a front view Figure S4 is a block diagram of the control system applied to the present invention. 1: Frame 2: Material feeding frame base 2a guide 4a: Drive roller 411 : Followed roller 6: Reversible drive device 7: I-seat material device 7a: Material feeding surface 11: Vertical guide 12: Lifting frame 14: Rotation #
(1linl 18.19: Material pressing roller 22
: Feed screw 23: Nut cylinder 24.26: Transmission gear means 27: Control motor l
A: Parnu shaping and direction discrimination circuit (B
: Deviation counter C: D/A converter P(]: Pulse generator 11G: Tacho generator SW: Detection switch T: Timer D: Motor control section E: External control circuit (microcomputer) Applicant
Shinko Shigyo Co., Ltd.

Claims (1)

[Claims] A rotary plane paulownia is installed above the material feeding device which has a fixed plane and is driven in the direction of the city road by a reversible drive device.
At least a pair of material pressing rollers are arranged after the rotation of the rotary body 111ii1, and either the material feeding device side or the rotating hook body 1 is provided with an Ivl interval between the two at a required step interval. A raising/lowering adjusting means for setting the step and a clocking means for opening the step interval are associated, and the material feeding path formed between the material feeding device and the material pressing roller is provided with a terminal end of the material to be processed. An automatic graining machine for wood processing, characterized in that a detection switch for detecting passage is provided, and the drive control of the reversible drive device and the clocking-out means are performed in relation to each other based on the detection signal of the detection switch. .