JPH0399831A - Apparatus for controlling coating amount of adhesive - Google Patents

Abstract

PURPOSE:To accurately and rapidly control the coating amount of an adhesive, to stabilize the quality of a product and to simplify work by outputting an alarm when it is judged that the coating amount of the adhesive deviates from a control limit value. CONSTITUTION:In an adhesive coating amount control apparatus, the wt. of an adhesive is measured by a wt. meter 1 and the coating amount (t) of the adhesive is calculated on the basis of the winding meter signal (l) of a laminated film from a laminator 8, the wt. measuring signal (w) from the wt. meter 1 and the width (a) of the laminated film by a computer 3. It is judged whether the calculated adhesive coating amount (t) deviates from a predetermined control limit value A and, as a result, when it is judged that the adhesive coating amount (t) deviates from the predetermined control limit value A, an alarm 4 is outputted. Therefore, the control of the adhesive coating amount at the time of the lamination of the laminated film in a lamination process performed manually heretofore can be automatically performed by the processing of a computer 3 without using a special sensor. By this method, the control of the adhesive coating amount is performed accurately and rapidly and the quality of a product is stabilized and work is simplified.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention enables accurate and accurate application amount management by automatically measuring in-line the amount of adhesive applied when bonding laminate films in the lamination process using a laminating machine. This invention relates to an adhesive application amount management device that can be used quickly.

[Prior Art] Conventionally, in the lamination process using a laminating machine, the amount of adhesive applied when bonding laminate films was controlled by an operator checking the number of rolls of laminate film and the amount of adhesive used at an appropriate timing. This is done by calculating the amount of adhesive applied. However, with such a management method, the operator is troubled each time, and there is a problem that not only the work cannot be simplified, but also the application amount cannot be managed quickly.

On the other hand, in recent years, in certain lamination processes, results have been achieved by automatically measuring in-line the amount of adhesive applied when bonding laminate films using a special sensor. however,
Due to the principle of the sensor, this type of control method has problems such as not being able to obtain an accurate coating amount due to changes in the adhesive over time, and it is difficult to apply it to all lamination processes. There was a problem.

[Problems to be Solved by the Invention] As described above, the conventional coating amount control method not only troubles the operator, but also has the disadvantage that the adhesive coating amount cannot be managed accurately and quickly. There was a problem.

The present invention was made to solve the above-mentioned problems, and it is possible to accurately and quickly manage the amount of adhesive applied without bothering the operator, thereby stabilizing the quality of the product and improving the quality of the product. It is an object of the present invention to provide an extremely reliable adhesive application amount management device that can simplify work.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a device for managing the amount of adhesive applied during lamination film bonding in the lamination process using a laminating machine. a weight measuring means for determining the amount of adhesive to be applied, a weight measuring means for calculating the amount of adhesive applied based on a winding meter signal of the laminate film from the laminating machine, and a weight 11) J constant signal from the weight measuring means; and a determining means for determining whether the amount of adhesive applied by the amount calculating means deviates from a predetermined control limit value, and determines that the amount of adhesive applied deviates from the control limit value. If this happens, a warning will be output to that effect.

[Function] Therefore, in the adhesive application amount control device of the present invention, the amount of adhesive applied when bonding laminate films in the lamination process is automatically measured in-line, so that the adhesive application amount can be controlled without the operator's intervention. It becomes possible to control the amount of application accurately and quickly, stabilize the quality of the product, and simplify the work.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an example of the overall configuration of an adhesive application amount management device according to the present invention. In FIG. 1, the adhesive application amount management device of this embodiment includes a weighing scale 1 as a weight measuring means, a relay device 2, a computer 3, and an alarm device 4.
, a keyboard 5 as an input means, and C as a display means.
It consists of an RT 6 and a printer 7 which is an output means.

Note that 8 is a laminating machine to be managed.

+ The weight scale 1 measures the weight of the adhesive (tank) and outputs a weight n1 constant signal as an analog signal. In addition, the relay device 2 takes in the weight measurement signal from the weighing scale 1 and the laminating film winding meter signal (pulse signal) from the laminating machine 8 and outputs it to the computer 3, and also takes in the alarm signal from the computer 3. This is to be output to the alarm device 4. This relay device 2 is for providing the weight measurement signal and the winding meter signal to the computer 3 without being affected by noise or the like.

On the other hand, the computer 3 has a coating amount calculation function that calculates the adhesive coating amount based on the winding meter signal and the weight measurement signal from the relay device 2, and the scheduled adhesive coating amount calculated by the coating amount calculation function. An alarm determination function that determines whether or not the amount of adhesive applied exceeds the control limit value, and outputs an alarm signal to that effect to the relay device 2 when the amount of adhesive applied exceeds the control limit value, from the keyboard 5. input signal processing function, CRT6
It also has an output processing function to the printer 7.

Further, the alarm device 4 outputs an alarm when an alarm signal from the relay device 2 is input.

Further, the keyboard 5 is used to input various data to the computer 3, such as the width of the laminate film, the control limit value, and the number of rolls in the laminated film in the flow direction. Furthermore, the CRT 6 is for displaying and outputting the calculation results of the computer 3, and the printer 7 is for printing out the calculation results of the computer 3.

Next, the operation of the adhesive application amount control device configured as described above will be explained using FIGS. 2 and 3.

First, in step S1 of FIG. 2, initial data such as the width a of the laminate film, the control limit value A1, the set coating amount T1, the number of rolls in the machine direction g of the laminate film, etc.
The information is input from the keyboard 5 to the computer 3. next,
In step S2, it is determined whether or not the laminating machine 8 is in operation. If the laminating machine 8 is in operation, in step S3 the number of rolls of the laminating film is set to the number of rolls in the machine direction for calculating the coating amount. It is determined whether the number of winding meters has been reached, and if the number of winding meters has been reached, the amount of adhesive applied is calculated in step S4.

That is, a weight measurement signal from the weighing scale 1 and a laminate film winding meter signal from the laminating machine 8 are input to the computer 3 via the relay device 2 . At a certain timing, the computer 3 stores the number of laminated film rolls g1 at measurement point 1 in FIG. 3, and also stores the engraft tank weight ff1W+. In addition, in the same manner as described above, the number g2 of laminated film rolls at points 1 and 111 in total 2 in FIG. 3 is stored, and the weight of the adhesive tank ff1W2 is also stored. Next, the number of laminate film rolls g between measurement point 1 and measurement point 2 is calculated by Ω-g2-91. Further, the area S of the shaded area in FIG. 3 is calculated by S-gXa. Furthermore, the adhesive usage amount W between measurement point 1 and measurement point 2 is calculated by W - W 1 - w2. As a result of the above, the adhesive application Ht becomes t m w / S
Calculated by Thereafter, the above-mentioned action is repeated, and in step S5, the coating amount value t corresponding to the number of winding meters is determined.
is displayed graphically on the CTR6. Further, in step S6, the computer 3 calculates the adhesive application amount value t.
It is determined whether or not the adhesive application Ht deviates from the control limit value A, and as a result, if the adhesive application Ht deviates from the control limit value A, an alarm signal to that effect is sent via the relay device 2 to the alarm device 4.
, the alarm device 4 is activated and an alarm signal is output in step S7.

Next, in step S8, it is determined whether the winding shaft of the laminating machine 8 has been switched, in other words, whether one product has been finished, and if the winding shaft has been switched as a result, step S9 The coating amount value t corresponding to the number of roll meters before switching is printed out by the printer 7.

Next, in step SIO, it is determined whether or not the number of the product has been changed, and if the result is that the number has been changed (actually, a switching command is input from the keyboard 5 by the operator), , the coating MW value corresponding to the number of roll meters before switching is printed out by the printer 7 in step S11.

Finally, in step S12, it is determined whether all the work has been completed, and as a result, if all the work has been completed (actually, the operator inputs a work end command from the keyboard 5), the step At 813, the printer 7 prints out the application amount value t corresponding to the number of roll meters at the time when all the work is completed.

As mentioned above, the adhesive application amount management device of this embodiment has the following features:
The weight of the adhesive is measured by the weighing scale 1, and the computer 3 calculates the amount based on the laminating film winding meter signal g from the laminating machine 8, the weight constant signal W from the weighing scale 1, and the width a of the laminating film. The adhesive application it is calculated, and it is determined whether the calculated adhesive application f:Lt deviates from the planned control limit value A, and as a result, the adhesive application Qt deviates from the control limit value A. If it is determined that this has occurred, a warning to that effect is output.

Therefore, the amount of adhesive applied when bonding laminate films in the lamination process, which has conventionally been done manually, can be automatically controlled in-line by computer 3 processing without using a special sensor. This not only improves the accuracy and speed of adhesive application management, but also makes it possible to eliminate defective products through early detection of application amount abnormalities, stabilize product quality, and simplify work. becomes. Furthermore, even in the lamination process where special sensors could not be applied,
Since the adhesive application amount control device of this embodiment can be constructed at a low cost, it is possible to significantly reduce costs.

Incidentally, although the case has been described in the above embodiment, the present invention is not limited to this, and the present invention can be similarly applied to other cases.

[Effects of the Invention] As explained above, according to the present invention, the weight of the adhesive is measured with a weighing scale, and the laminate film winding meter signal from the laminating machine and the weight '11 constant signal from the weighing scale are used. Based on this, the amount of adhesive applied is calculated, and it is determined whether the calculated amount of adhesive applied deviates from the planned control limit value, and as a result, the amount of adhesive applied deviates from the control limit value. If it is determined that this is the case, a warning will be output to that effect, making it possible to accurately and quickly manage the amount of adhesive applied without bothering the operator, thereby stabilizing product quality and improving product quality. An extremely reliable adhesive application amount management device capable of simplifying work can be provided.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a block diagram showing an embodiment of the adhesive application amount management device according to the present invention, and FIGS. 2 and 3 are diagrams for explaining the functions of the embodiment. be. 1... Weight scale, 2... Relay device, 3... Computer, 4... Alarm device, 5... Keyboard, 6...
・CRT. 7...Printer 8...Laminating machine.

Claims (2)

[Claims] (1) A device for controlling the amount of adhesive applied when laminating films together in a lamination process using a laminating machine, comprising a weight measuring means for measuring the weight of the adhesive, and a winding meter signal of the laminated film from the laminating machine. and,
an application amount calculation means for calculating an application amount of adhesive based on a weight measurement signal from the weight measurement means; An adhesive application amount management device comprising: determination means for determining whether or not the adhesive is applied. (2) The adhesive according to claim (1), wherein when the determination means determines that the amount of adhesive applied deviates from a control limit value, a warning to that effect is output. Agent application amount control device.