JP3621726B2 - Gluing control method for packaging machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a gluing control method for a packaging machine.
[0002]
[Prior art]
As shown in FIG. 2, the conventional gluing control method required for forming or sealing a box or bag is as follows. All the gluing conditions at the time of box making of a packaging machine ( timing cam signal a that outputs a gluing position, box All of the presence / absence detection signals b) are output to the non-contact relay 2 via a control device such as a sequencer, and the gluing device 3 is operated.
[0003]
[Problems to be solved by the invention]
In the pasting control method of the conventional packaging machine shown in FIG. 2, all of the pasting conditions at the time of boxing of the packaging machine ( timing cam signal a for outputting the pasting position, signal for detecting presence / absence of box, signal during operation, All other detection signals b ) are output to the non-contact relay 2 via the control device 4 such as a sequencer, and the gluing device 3 is operated . The timing cam signal a is output at the same position for each cycle, but the soft program processing time of the control device 4 varies (the time until the signal is output from the control device 4 shown in FIG. Under the influence of ~ 40 ms), it is not possible to paste at an accurate position. That is,
(1) The position of the glue is shifted and the glue adheres to the packaged product, so that the product (product) value is lowered.
(2) The molded state of the box is deteriorated, an abnormality occurs in the machine, and the production operation rate and the non-defective rate are reduced.
(3) Glue is scattered on the places other than the box, and the peripheral devices are soiled. In addition, troubles such as malfunctions occur in peripheral devices due to the adhered glue.
[0004]
The present invention is proposed in view of the above-mentioned problems, and its intended process is to prevent a decrease in product (product) value and a decrease in production operation rate and non-defective product rate, as well as in peripheral devices. The point is to provide a gluing control method for a packaging machine that can eliminate troubles such as malfunctions.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the gluing control method for a packaging machine according to the present invention is a gluing condition that requires a soft program process because the conditions change for each cycle among the gluing conditions during box making of the packaging machine. At least the box presence / absence detection signal is sent to a control device such as a sequencer for each cycle, and the pasting condition is programmed in this cycle, and the timing cam signal that does not require program processing because the condition does not change for each cycle. At the same time as outputting without passing through the control device, the pasting conditions that have been processed by the program are also output to the pasting device for pasting.
[0006]
[Action]
The present invention is configured as described above, and among the gluing conditions at the time of box making of the packaging machine, the gluing conditions that require soft program processing are sent to a control device such as a sequencer, where program processing is performed. In addition, the pasting conditions that do not require software program processing are output without using the control device, and at the same time, the pasting conditions that have been processed by the program are output, and the pasting is performed at the exact position of the box every cycle. .
[0007]
【Example】
Next, the gluing control method of the packaging machine according to the present invention will be described with reference to an embodiment shown in FIG. 1. A timing cam signal for setting a position where a actually blows gluing (gluing conditions not requiring soft program processing) , B is a detection signal ( box presence / absence detection signal for detecting presence / absence of box / operation signal / other signal) (gluing condition requiring software program processing), c is a control signal of control device 4 such as a sequencer, 1 is a relay, 2 is a non-contact relay, and 3 is a gluing device.
[0008]
The timing cam signal a for setting the position where the glue is actually blown is output at the same position for each cycle, and does not require soft program processing . Since the condition of the detection signal b changes every cycle, the detection signal b is sent to the control device 4 such as a sequencer every cycle, processed by the control device 4 and output to the relay 1.
[0009]
In the control device 4 , the determination process is completed at the time when the timing cam signal a is output even if there is some time variation in the software program process . Therefore, the timing cam signal a is output without the control device 4 , and at the same time, the pasting conditions that have been programmed are output to the pasting device 3 via the AND circuit of the contactless relay 2, Gluing takes place at the exact position of the box every cycle.
[0010]
【The invention's effect】
As described above, the present invention sends the sizing conditions requiring soft program processing to the control device such as a sequencer among the sizing conditions at the time of box making of the packaging machine. Since the pasting conditions that do not need to be output are output without going through the control device, the pasting conditions that have been processed by the above program are output, and the pasting is performed at the exact position of the box every cycle. ) In addition to preventing declines in value, production operation rate, and non-defective product rate, troubles such as malfunctions occurring in peripheral devices can be resolved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an embodiment of a pasting control method for a packaging machine according to the present invention.
FIG. 2 is an explanatory view showing a pasting control method for a conventional packaging machine.
[Explanation of symbols]
a Timing cam signal (gluing conditions that do not require software program processing)
b Detection signals such as box presence / absence detection signals (gluing conditions requiring software program processing)
c Control signal of control device such as sequencer 1 Relay 2 Non-contact relay 3 Gluing device
4 Control device

Claims (1)

At least a box presence detection signal is sent to a control device such as a sequencer for each cycle as a gluing condition that changes every cycle and requires soft program processing among the gluing conditions at the time of box making of the packaging machine. The pasting conditions are programmed, and the timing cam signal which does not require program processing does not change every cycle and is output without passing through the control device. A gluing control method for a packaging machine, characterized in that gluing is performed by outputting to a bundling device.

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