JP2003291101A - Device for controlling movement of circular saw in traveling circular sawing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving control device for a circular saw in a traveling circular sawing machine in which a workpiece is effectively cut by automatically controlling a travel-moving of the circular saw according to a length of the workpiece. <P>SOLUTION: A means 19 for holding down the workpiece W is composed of many pressing pieces 30 to 37 divided in a direction of a slit 3 for traveling. Operation conditions of the pressing pieces are detected with detection switches 40 to 47, and a length of the workpiece W is measured. The circular saw 6 is moved with a forward and reverse travel driving means 11, and a moving length of the circular saw 6 is measured with the number of its revolutions. Next, the travel driving means 11 is rotatively controlled forward and backward by arithmetically comparing the length of the workpiece with the moving length of the circular saw. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling circular saw capable of automatically controlling a traveling position of a circular saw in accordance with the length of a workpiece. The present invention relates to a circular saw movement control device. 2. Description of the Related Art Conventionally, cutting of a processing material by a traveling circular sawing machine is performed as shown in FIG. That is, when the circular saw 100 is at the start position P, the circular saw 10 is located at that position.
0 protrudes above the table 101, and travels to the end position Q while maintaining the protruding state. As a result, the circular saw 100 having completed the cutting process is immersed in the table 101 at the end position Q, and is returned to the start position P in the retracted state. [0003] In the above, if the traveling movement amount of the circular saw 100 is too large with respect to the length of the workpiece W, useless time will be consumed. The amount of return movement is adjusted and set to an appropriate standby position so as to prepare for the next cutting process. This adjustment is
The operation is performed by operating a traveling driving unit that travels the circular saw 100, and specifically, is electrically performed by a digital counter or the like. [0004] As described above, in the prior art, when cutting, the length of the workpiece W is measured in advance and artificially based on the measured value. This is the setting of the travel distance of the circular saw. For this reason, the burden on the operator is large, and the machining operation cannot be efficiently advanced.
In addition, when the length of the work material changes frequently, it is not possible to respond to the adjustment one by one, so it is often observed that the maximum travel distance is used, and the work efficiency is greatly reduced. Point was invited. The present invention has been made in view of the above-mentioned problems of the prior art, and there is no need to measure the length of the work material or to set the traveling amount of the circular saw, and the work material is not required. It is an object of the present invention to provide a circular saw movement control device in a traveling circular saw machine capable of appropriately controlling the movement of the circular saw according to the length of the circular saw. In order to achieve the above object, a circular saw movement control device for a traveling circular saw according to the present invention is configured as follows. [0007] That is, the gist of the invention is that a holding means is provided corresponding to the running slit of the circular saw, and the work material is pressed and fixed by the holding means and protrudes from the running slit and travels. In a traveling circular sawing machine in which a circular saw is provided and a workpiece is cut by the circular saw, the pressing means is constituted by a large number of pressing pieces divided in a running slit direction, and an operating state of the pressing pieces. A detection switch for detecting the presence or absence of the workpiece is provided, the length of the workpiece is measured by the detection signal, and a forward / reverse traveling moving means for traveling and traveling the circular saw is provided. Measure the travel length of
The rotation length of the traveling drive means is controlled by comparing and calculating the measured length of the workpiece and the travel length of the circular saw. When the moving length of the circular saw is smaller than the measured length of the workpiece, the traveling drive means controls the rotation in a direction to increase the moving length of the circular saw. When the moving length of the circular saw and the measured length of the work material properly correspond to each other, the circular saw protrudes and performs cutting. When the moving length of the circular saw is larger than the measured length of the workpiece, the traveling drive means controls the rotation in a direction to reduce the moving length of the circular saw. Then, the cutting process is performed in accordance with the movement length of the circular saw and the measured length of the work material appropriately. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a circular saw movement control apparatus for a traveling circular saw according to the present invention will be described below. FIG. 1 is an explanatory view showing a conceptual configuration, wherein 1 is a frame of a traveling circular saw board 2 is a horizontal table 3 provided on the upper part of the frame 1 is a traveling slit 4 of a circular saw drilled in the table 2. The horizontal guide rail 5 provided at the lower portion of the table 2 is a circular saw provided on the movable base 5 so as to be movable on the guide rail 4. The circular saw 6 is moved up and down by lifting means (not shown).
It protrudes to the upper cutting position, and then enters the retracted position in the table 2. The circular saw 6 is rotated in a direction indicated by an arrow by a drive motor (not shown). A forward / reverse traveling drive means 7 is connected to the moving base 5 to travel the circular saw 6 in the left-right direction. The traveling drive means 7 comprises sprockets 8, 9 provided at both ends of the guide rail 4. A chain 10 is connected at one end to the moving base 5 and wound around the sprockets 8 and 9 and a reversible electric motor 11 connected to one sprocket 9 via a speed reducer. Reference numeral 12 denotes a connecting shaft 1 between the speed reducer and the sprocket 9.
3, a pulse generator 15 for detecting the amount of rotation of the slit disk 12 and outputting a pulse train corresponding to the rotation amount. A pulse generator 15 receives the output of the pulse generator 14 and determines the moving length of the circular saw 6. Circular saw position measuring means to be measured This circular saw position measuring means 15 absolutely measures the current circular saw moving position with respect to the movement end position (indicated by a virtual line in the figure) of the circular saw 6 as a base point. . Reference numeral 16 denotes a ruler plate provided on one side of the table 2. The ruler plate 16 serves as a reference for mounting the workpiece W, and is disposed on the moving end side of the circular saw 6. Reference numeral 17 denotes a gate-shaped mounting frame 19 erected on the upper portion of the table 2 by supporting legs 18 at both ends. Holding means. The holding means 19 includes a mounting frame 17.
A plurality of (eight in this embodiment) pneumatic cylinders 20 to 27 disposed downward and a large number of pressing pieces 30 to 37 fixed to the piston rod ends of the pneumatic cylinders 20 to 27. These pressing pieces 30 to 37 are arranged in series so that there is no gap between them in the direction of the running slit. The detection switches 40 to 47 detect the lifting and lowering operations of the holding pieces 30 to 37 and detect the presence or absence of the workpiece W on the table 2.
When the presser pieces 30 to 37 reach the surface of the table 2 by the extension operation of the piston rods in the pneumatic cylinders 20 to 27, a detection signal indicating "no work material" is output. When the presser pieces 30 to 37 do not reach the surface of the table 2, a detection signal indicating "there is a work material" is output. A workpiece length measuring means 50 receives the output signals of the detection switches 40 to 47 and measures the length of the workpiece W.
This processing material length measuring means 50 calculates the length of the processing material W (the processing material W
Is measured in length units of the holding pieces 30 to 37. Reference numeral 51 denotes a rotation control unit for comparing and calculating the output of the work material length measurement unit 50 and the output of the circular saw position measurement unit 15 to control and rotate the electric motor 11 of the traveling drive unit 7. When the output of the circular saw position measuring means 15 is smaller than the output of the workpiece length measuring means 50, the rotation control means 51 reversely rotates the electric motor 11 by the difference output to move the circular saw 6 to the right in the figure. Move to control. When the difference output becomes "0", the movement is stopped, and the circular saw 6 is projected at that position. When the output of the circular saw position measuring means 15 is larger than the output of the workpiece length measuring means 50, the electric motor 11 is rotated forward by the difference output to controlly move the circular saw 6 to the left in the figure. When the difference output becomes "0", the circular saw 6 is projected at that position. The rotation control means 51 rotates the electric motor 11 forward with the projection of the circular saw 6 and moves the circular saw 6 to the left. This movement is stopped by the output signal of the detection switch 52 that operates when the circular saw 6 reaches the end of movement (left end). After the circular saw 6 stops moving, the circular saw 6
2Descent from above to the evacuation position. The rotation control means 51
When the circular saw 6 is retracted, the electric motor 11 is rotated in the reverse direction and the circular saw 6 is controlled to move rightward. This control rotation amount is given by an output from the work material length measuring means 50. An apparatus for controlling the movement of a circular saw in a traveling circular sawing machine according to one embodiment has the above-described configuration.
, The moving length L of the circular saw 6 is greater than the length L1 of the workpiece W.
When 2 is small, the circular saw 6 moves to the right M position by the differential output between the circular saw position measuring means 15 and the work material length measuring means 50, and the circular saw 6 projects at that position. Then, the circular saw 6 moves leftward while maintaining the protruding state, and reaches the Q position at the end of movement, whereby the workpiece W is cut. When the above-mentioned cutting is completed, the circular saw 6 enters the retracted position. Then, it moves rightward in the retracted state, stops at the position M, and stands by for cutting of the next workpiece W. Therefore, when the next workpiece W is the same as described above, the circular saw 6 can be immediately protruded to perform the cutting process. Next, as shown in FIG. 3, when the moving length of the circular saw 6 is larger than the length of the workpiece W, the circular saw position measuring means 1 is used.
The circular saw 6 moves to the left N position by the difference output of the workpiece 5 and the workpiece length measuring means 50, and the circular saw 6 projects at that position. Then, it moves to the left while maintaining the protruding state, and reaches the Q position at the end of the movement.
W is cut. When the above cutting process is completed, the circular saw 6
Enters the evacuation position. Then, it moves rightward in the retracted state, stops at the N position, and stands by for cutting of the next workpiece W. In the above-described embodiment, when the moving length of the circular saw 6 is longer than the length of the workpiece W, the circular saw 6 protrudes above the table 2 after moving to an appropriate left position. Alternatively, the circular saw 6 may be projected first on the table 2 and then moved toward an appropriate left position. In this case, the leftward movement may be continued to the end of the movement without stopping halfway. As described above, according to the circular saw movement control device for the traveling circular sawing machine according to the present invention, the length of the work material is artificially measured in advance as in the prior art. Based on this, it is not necessary to adjust the traveling movement amount of the circular saw, and appropriate circular saw movement according to the length of the work material can be automatically performed. For this reason, an excellent effect can be exhibited in performing the cutting work efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual explanatory view showing an embodiment of a circular saw movement control device in a traveling circular saw machine according to the present invention. FIG. 2 is an explanatory diagram showing a control movement state of a circular saw. FIG. 3 is an explanatory diagram showing a control movement state. FIG. 4 is an explanatory view of a cutting state in a conventional traveling circular sawing machine. [Description of Signs] 2 Table 3 Traveling Slit 5 Moving Base 7 Traveling Driving Means 11 Electric Motor 12 Slit Disk 14 Pulse Generator 15 Circular Saw Position Measuring Means 19 Holding Means 50 Workpiece Length Measuring Means 51 Rotation Control Means W Processing Material 20-27 Pneumatic cylinder 30-37 Presser piece 40-47 Detection switch

Claims (1)

Claims 1. A pressing means is provided corresponding to a running slit of a circular saw, and a work material is pressed and fixed by the pressing means, and the round protrudes from the running slit and travels. In a traveling circular saw machine in which a saw is provided and a workpiece is cut by the circular saw, the pressing means is constituted by a number of pressing pieces divided in the direction of the running slit, and depending on the operating state of these pressing pieces. A detection switch for detecting the presence or absence of a workpiece is provided, the length of the workpiece is measured by the detection signal, and a forward / reverse type traveling moving means for traveling and traveling the circular saw is provided. The traveling circular sawing machine is characterized in that the traveling length of the traveling driving means is measured and the rotational length of the traveling driving means is controlled by comparing and calculating the measured length of the workpiece and the traveling length of the circular saw. Movement control apparatus of kicking circular saw.