JPH10187220A - Follow-up operation positioning device and its contoll method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a follow-up operation positioning device capable of changing a synchronization ratio between the carrying of a sheet material and the cutting of the sheet material by small labor. SOLUTION: When the sheet material 15 is carried by a feeding roll 13, a sheet cutter 14 is moved to the prescribed (follow-up) direction of the sheet material 15 by electric control using the G code programming of an operation control part 25 so as to cut the prescribed position of the sheet material 15. In the case of cutting off the sheet material 15, the sheet material is cut off while moving the cutter 14 in the same direction as the carrying direction of the material 15 without stopping the carrying of the material 15 by the roll 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to control of a follow-up operation positioning device used in a device for carrying out a sheet material or the like.
In particular, the present invention relates to a tracking operation positioning device using G code programming and a control method thereof.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing a configuration example of a conventional follow-up operation positioning device. As shown in FIG. 6, a conventional apparatus includes a feed roll 11 for conveying a sheet material 115.
3, a sheet cutter 114 for cutting the sheet material 115 conveyed by the feed roll 113 into a fixed length, a drive motor 109 for driving the feed roll 113 and the apparatus main body, reduction gears 110 and 111, The rotation output of the motor 109 is converted to feed roll 11.
3 includes a cam mechanism 112 for driving the crankshaft 116 of the press machine 117, a driving motor 119 for driving the sheet cutter 114, and a clutch 118. Next, the operation of the above configuration will be described. FIG. 7 is a timing chart for explaining the operation of the follow-up operation positioning device shown in FIG. 6 and 7, first, the drive motor 1
When the commercial power supply is turned on in step 09, the drive motor 109 rotates at a constant speed as shown in FIG.
12 is transmitted. In the cam mechanism 112, the speed reducer 1
The rotation output of the driving motor 109 transmitted through the motor 10 is intermittent rotation of the feed roll 113 and the crankshaft 1.
16 drives, whereby feed roll 1
13 and the crankshaft 116 are driven. When the feed roll 113 is driven, the sheet material 115 is carried in from a supply side (not shown) in a fixed size and carried out to the other side.
Further, the intermittent output of the cam mechanism 112 is also transmitted to the clutch 118 via an arbitrary electric circuit (not shown) such as a limit switch and a relay, so that the clutch 118 is synchronized with the intermittent rotation of the feed roll 113. Are excited, and the driving of the sheet cutter 114 is controlled. Here, the operation relationship between the feed roll 113 and the sheet cutter 114 is such that when the feed roll 113 is transported by a predetermined amount based on the intermittent output of the cam mechanism 112,
The rotation of the feed roll 113 stops, whereby the sheet material 115 being conveyed stops. In this state, the sheet cutter 114 is driven to cut the sheet material 115.
In addition, the press machine 117 reciprocates at a constant speed between the top dead center and the bottom dead center because the crankshaft 116 rotates at a constant speed, and is synchronized with the cutting of the sheet material 115 by the sheet cutter 114. The timing of the operation is controlled by the cam mechanism 112 so that the sheet material 115 is punched out (see JP-A-2-41895).

[0003]

However, in the above-mentioned prior art, the operation timings of sheet conveyance and stop, cutting of the sheet by the sheet cutter, and punching of the sheet by the press machine are mechanically controlled. Therefore, when the synchronization ratio of each operation is changed, there is a problem that a great deal of labor is required for adjustment. Also, when cutting a sheet material with a sheet cutter,
There is a problem in that the sheet material must be stopped and extra time is required for cutting the sheet material. Therefore, the inventions according to claims 1 to 6 have been made in view of the above-described problems of the related art, and require a small amount of labor to change the synchronous ratio of sheet material conveyance and sheet material cutting. An object of the present invention is to provide a follow-up operation positioning device that can perform the cutting operation and can cut the sheet material in a short time. According to the seventh or eighth aspect of the present invention, the positioning device having the following operation function is provided with a synchronization completion position designation function so that a position until the completion of synchronization can be designated by G programming. It is intended that easy programming can be easily realized.

[0004]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 comprises a conveying means for conveying an article at a constant speed, and a means for moving the article in a predetermined direction, Processing means for performing a predetermined processing on a predetermined position of the article, and a conveying operation of the article by the conveying means,
In a follow-up operation positioning device having an operation control means for controlling the movement and the processing operation of the processing means, the operation control means includes an operation of transporting an article by the transportation means, and an operation of moving and processing the processing means. Is controlled by electrical means. According to a second aspect of the present invention, in the following operation positioning apparatus according to the first aspect, the electric means is based on G code programming. According to a third aspect of the present invention, in the following operation positioning apparatus according to the first aspect, the operation control unit performs processing on the article by the processing unit without stopping conveyance of the article by the conveyance unit. It is characterized in that it is performed. According to a fourth aspect of the present invention, in the tracking operation positioning apparatus according to the first aspect, the processing means performs processing on the article while moving in the same direction as the transport direction of the article. . According to a fifth aspect of the present invention, in the follow-up operation positioning device according to the first aspect, there is provided a detecting means for detecting a mark written on the article, and the operation control means includes a detection result of the detecting means. The moving speed of the processing means is controlled based on the following. The invention according to claim 6 is the tracking operation positioning device according to claim 1, wherein the article is a sheet material, the transporting unit is a feed roll that transports the sheet material, and the processing unit is the processing unit. It is a sheet cutter for cutting a sheet material. According to a seventh aspect of the present invention, in the positioning control method using the follow-up operation positioning device according to any one of the first to fifth aspects, the operation control is performed by setting a designated position of the article conveyed by the conveying means. The present invention is characterized in that positioning control is performed by using G code programming to chase by a feed shaft portion of the means and synchronize positions at a preset distance. The invention according to claim 8 is the control method of the tracking operation positioning device, wherein the preset distance is a distance from a mark detection point to a point at which synchronization is completed. It is characterized by the completion distance. According to the tracking operation positioning apparatus of the present invention configured as described above, when an article is transported by the transport means, the processing means moves in a predetermined direction (following direction) with respect to the article under the control of the operation control means. The processing is performed at a predetermined position of the article, but at that time, the control by the operation control means is performed by the electric means, so that when the control content is changed, only the software needs to be changed, and a great deal of adjustment is required. In addition to eliminating the need for labor, the transporting of the articles by the transporting means is not stopped when the articles are processed. Since the processing is performed with the speed controlled, the processing time of the article is reduced. Further, according to the control method of the tracking operation positioning apparatus of the present invention having the above-described configuration, an optimal chasing speed is calculated and controlled using G code programming so as to complete synchronization at a specified synchronization completion distance. Therefore, the synchronization completion position is automatically determined only by designating the synchronization completion position by the G code programming, so that complicated speed control calculations are simplified and the processing time of the article is further reduced.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a tracking operation positioning device according to a first embodiment of the present invention. FIG. 2 is an explanatory view of the operation of the follow-up operation positioning device shown in FIG. The apparatus shown in FIG. 1 includes a sheet material supply unit 26 that supplies a sheet material 15 as an article, a feed roll 13 that is a conveyance unit that conveys the sheet material 15 supplied from the sheet material supply unit 26, and a sheet material. A marker sensor 22 that is a detecting unit that detects the mark described above, a sheet cutter 14 that is a processing unit for cutting the sheet material 15, a sheet cutter driving unit 27 that controls the movement of the sheet cutter 14, An operation control unit 25 that detects and controls the rotation speed of the feed roll 13 and outputs a signal for controlling the moving speed of the sheet cutter 14 to the sheet cutter driving unit 27 based on the detection result by the marker sensor 22. It is composed of Feed roll 1
3 is provided with a master shaft (feed shaft) 21 for rotating the feed roll 13 under the control of the operation control unit 25, and the sheet cutter driving unit 27 is provided with a signal output from the motion control unit 25. Sheet cutter 14 based
Is provided with a slave shaft 24 for controlling the movement of the robot. The mark written on the sheet material 15 is
May be written before the sheet material 15 is wound around the sheet supply unit 26, or may be written while the sheet material 15 is conveyed from the sheet supply unit 26 to the field roll 13.

Next, the operation of the tracking operation positioning device will be described. 2A and 2B are explanatory diagrams of the operation of the apparatus shown in FIG. 1. FIG. 2A is a timing chart showing the speed of the field roll 13, and FIG. 2B is a timing chart showing the speed of the sheet cutter 14. First, when the master shaft 21 is driven by the control of the operation control unit 25, the feed roll 13 rotates at a predetermined speed, the sheet material 15 is supplied from the sheet material supply unit 26, and the rotation speed of the feed roll 13 is determined. The sheet material 15 is conveyed at a speed. Thereafter, when a mark written on the sheet material 15 is detected by the marker sensor 22, the detection result is transmitted to the operation control unit 25. Thereby, a signal to move the sheet cutter 14 is sent from the operation control unit 25 to the sheet cutter driving unit 27, and the sheet cutter driving unit 27 drives the slave shaft 24 based on the transmitted signal,
The movement of the sheet cutter 14 is started. In this case, the moving direction of the sheet cutter 14 is the same as the conveying direction of the sheet material 15. When the sheet cutting position of the sheet cutter 14 matches the position of the mark written on the sheet material 15 by the movement of the sea cutter 14, the movement speed of the sheet cutter 14 is reduced by the control of the operation control unit 25. Is set at a constant speed. The sheet material 15 is cut by the sheet cutter 14 during the constant speed operation period. When the sheet material 15 is cut by the sheet cutter 14, only the slave shaft 24 is decelerated and stopped under the control of the operation control unit 25. After that, sheet cutter 1
4 is returned to the original position before the movement, and the sheet cutter 14 can be moved again and the sheet material 15 can be cut by the sheet cutter 14 again. Here, the moving speed of the sheet cutter 14 by driving the slave shaft 24 will be described. The mark written on the sheet material 15 is the marker sensor 2
2, the speed of movement of the sheet cutter 14 is first accelerated until it is equal to the conveying speed of the sheet material 15, and after the speed is once equal, the position of the mark written on the sheet material 15 The speed of the sheet cutter 14 is reduced to a predetermined speed so that the sheet catches up with the sheet cutting position of the sheet cutter 14. Thereafter, the position of the mark written on the sheet material 15 catches up with the sheet cut position of the sheet cutter 14, and when the position of the sheet cut of the sheet cutter 14 matches the position of the mark written on the sheet material 15, the sheet The moving speed of the cutter 14 is set to be equal to the conveying speed of the sheet material 15. After the sheet material 15 is cut by the sheet cutter 14 during the constant speed operation period, the sheet cutter 14 is returned to the original position before the movement. Less than,
In the case where the above-described operation is realized by programming using the G code, the contents specified in advance will be described.
First, the position of the marker sensor 22 is specified. Therefore, even when the position of the marker sensor 22 is changed with respect to the entire apparatus, it is easy to respond.

Next, the distance between the position of the mark written on the sheet material 15 and the cutting position of the sheet material 15 and the moving speed of the sheet cutter 27 are set. In the above-described embodiment, an example has been described in which the position of the mark written on the sheet material 15 and the cutting position of the sheet material 15 coincide with each other. It is also possible to arbitrarily set the positional relationship between the sheet material 15 and the cutting position. As for the master shaft 21, the diameter of the feed roll 13 to be used is designated, and the slave shaft 24 is designated.
With regard to (1), by specifying the pitch of the ball screw for moving the sheet cutter 14, the moving speed of the sheet cutter 14 with respect to the conveying speed of the sheet material 15 can be controlled. In the present embodiment, as described above, adjustment relating to the relationship between the position of the mark written on the sheet material 15 and the cutting position of the sheet material 15, the moving speed of the sheet cutter 27, and the like are performed using G code programming. Therefore, as compared with the case where the adjustments are conventionally performed individually for each member mechanically, the adjustment is performed only by a simple input operation (one operation) of inputting the operating conditions by programming. The time and labor required for adjustment can be greatly reduced. Further, even when the operating conditions are changed, the operating conditions can be changed with a small amount of labor. Furthermore, the operating conditions suitable for the device can be freely set without being constrained by mechanical restrictions, whereby various synchronous operations can be realized.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram of an operation control unit of the following operation positioning device that demonstrates the control method of the following operation positioning device according to the second embodiment of the present invention. FIG. 4 is an explanatory diagram of a control operation of the operation control unit shown in FIG. FIG. 5 is a flowchart of a control operation of the operation control unit shown in FIG. 3, the master axis controller 1 is an amplifier for controlling the master axis 21 (FIG. 1), and the slave axis controller 2 is an amplifier for controlling the slave axis 24. The controller unit 3 is a controller that controls the master axis control unit 1 and the slave axis control unit 2. The communication routine 4 and the calculation routine 5 are the master axis control unit 2.
1. A routine for performing an operation for controlling the operation of the slave axis 24. The operation explanatory diagram of FIG. 4 is different from that of the first embodiment shown in FIG. 2 in the operation of the slave shaft 24 of FIG. 4B. The operation of the master axis is the same. FIG. 1 showing the hardware configuration of the first embodiment is common to the case of the second embodiment, and therefore, the duplicate description of the configuration of the follow-up operation positioning device will be omitted. Regarding the G code, in the case of the present embodiment, the contents of programming such as the relation between the mark position and the cutting position of the sheet material 15 and the moving speed of the sheet cutter 14 are different from those of the previous embodiment. Specify the synchronization completion distance. The synchronization completion distance referred to here is a portion indicated by x (hatched line) in FIG.
Is the distance from the detection point to the completion of synchronization. The difference from the previous embodiment is that, as a reference, an appropriate distance can be designated in accordance with the overall apparatus. Next, the slave axis 2 which is a feature of this embodiment is described.
The moving speed of No. 4 will be described. When the mark written on the sheet material 15 is detected by the marker sensor 22, the moving speed of the sheet cutter 14 is accelerated until the moving speed of the sheet material 15 becomes equal to the moving speed of the sheet material 15. The speed of the sheet cutter 14 is reduced or accelerated to the chase speed f so that the position of the mark written on the sheet material 15 catches up with the sheet cutting position of the sheet cutter 14 at an arbitrarily designated distance x. The processing during this time will be described in detail with reference to the flowchart in FIG. (At this time, if the synchronization completion distance x is specified, the operation control unit 25 selects the optimum speed for the speed by the following arithmetic processing.) First, the program parameter data is read (Step.a), and the optimum chase speed f is calculated from this (S.b). The reference at this time is calculated backward by the arithmetic routine 5 so that the synchronization completion distance x becomes the position designated by the program. Based on this calculation result, the master axis 2
1. A command value for the slave axis 24 is created and passed to the master axis controller 1 and the slave axis controller 2 via the communication routine 4 (Sc). After the command is given to each axis in this way, the position of the mark written on the sheet material 15 catches up with the sheet cut position of the sheet cutter 14 and the position of the mark When the positions of the marked marks match, the moving speed of the sheet cutter 14 is set to be equal to the conveying speed of the sheet material 15. Then, after the sheet material 15 is cut by the sheet cutter 14 during the constant speed operation period, the sheet cutter 14 is returned to the original position (Sd). According to the present embodiment, the above operation can be realized by G code programming. In other words, the chasing completion distance (synchronization completion distance) following the setting conditions of G code programming
In the previous embodiment, the chasing of the processing means is performed at the maximum speed or the set speed, and complicated arithmetic control is performed to adjust the chasing completion position and the speed of the master axis according to the entire apparatus. In contrast to this, the follow-up operation for the entire apparatus can be programmed more specifically and very easily. As a result, the labor required for adjusting the apparatus is greatly reduced, and the processing time can be further reduced. Although the cutting process of the sheet material as the article has been described so far, the present invention is also applicable to a cutting process facility for a long strip of paper, a film-like substance, a steel coil, a non-ferrous metal coil, and the like.

[0009]

As described above, according to the present invention,
In the following operation positioning device, when the article is transported by the transport means, the processing means moves in a predetermined direction with respect to the article under the control of the operation control means, and the sheet material or the like of the article is processed. Processing is performed while the processing means moves in the same direction as the transport direction of the articles without stopping the transport of the articles by the transport means, and the operation control means during this time is controlled by electrical means such as G code programming. Accordingly, a great deal of labor is not required when changing the control content, and the time required for processing an article such as cutting a sheet material can be reduced. Further, as a control method of the following operation positioning device, the operation control means calculates an optimum chasing speed based on a specified chasing completion distance (synchronization completion distance), and completes synchronization with the synchronization completion distance. Is realized by using the G code programming, so that operations such as speed adjustment of the master axis, which required complicated calculations, can be easily determined by the G code programming, and further processing of the article can be performed. Time can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram of a tracking operation positioning device according to a first embodiment of the present invention.

FIG. 2 is an operation explanatory view of the following operation positioning device shown in FIG. 1;

FIG. 3 is a block diagram of an operation control unit of a following operation positioning device that demonstrates a control method of the following operation positioning device according to a second embodiment of the present invention.

4 is an explanatory diagram of a control operation of an operation control unit shown in FIG.

FIG. 5 is a flowchart of a control operation of an operation control unit shown in FIG. 3;

FIG. 6 is a block diagram illustrating a configuration example of a conventional tracking operation positioning device.

FIG. 7 is a timing chart for explaining the operation of the following operation positioning device shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Master axis control part 2 Slave axis control part 3 Controller part 4 Communication routine 5 Calculation routine 13 Feed roll 14 Sheet cutter 15 Sheet material 21 Master axis 22 Marker sensor 24 Slave axis 25 Operation control part 26 Sheet material supply part 27 Sheet cutter drive Department

Claims (8)

[Claims] 1. A conveying means for conveying an article at a constant speed, a processing means for moving the article in a predetermined direction and performing a predetermined processing on a predetermined position of the article, and the conveying means In the following operation positioning apparatus, comprising: an operation of transporting an article by the method and an operation control means for controlling movement and processing of the processing means, the operation control means includes: an operation of transporting the article by the transportation means; A follow-up operation positioning device, wherein the movement and the processing operation of the processing means are controlled by electric means. 2. The tracking operation positioning device according to claim 1, wherein the electrical means is based on G code programming. 3. The tracking operation positioning apparatus according to claim 1, wherein the operation control means causes the processing means to process the article without stopping the transport of the article by the transport means. A tracking operation positioning device according to claim 1. 4. The tracking operation positioning apparatus according to claim 1, wherein the processing means performs processing on the article while moving in the same direction as the transport direction of the article. 5. The tracking operation positioning device, further comprising: a detection unit configured to detect a mark written on the article.
The tracking operation positioning apparatus according to claim 1, wherein the operation control unit controls a moving speed of the processing unit based on a detection result of the detection unit. 6. The tracking operation positioning device, wherein the article is a sheet material, the conveying means is a feed roll for conveying the sheet material, and the processing means is a sheet cutter for cutting the sheet material. The tracking operation positioning device according to claim 1, wherein 7. A positioning control method using the follow-up operation positioning device according to claim 1, wherein a designated position of an article conveyed by said conveyance means is controlled by a feed shaft of said operation control means. A control method for a follow-up operation positioning device, characterized by performing, using G code programming, positioning control for following and synchronizing positions at a preset distance. 8. The control method for a tracking operation positioning device, wherein the predetermined distance is a synchronization completion distance for calculating a moving speed by designating a distance from a mark detection point to completion of synchronization. The control method for a follow-up operation positioning device according to claim 7, characterized in that: