JPS58201611A - Glueing device for blank web - Google Patents

Abstract

PURPOSE:To make it possible to glue two kinds of blank webs together by accurately registering them without being deviated from each other by such an arrangement wherein rolls of 2 kinds of blank webs are mounted on shafts which can be controlled by means of a brake, and marks on both rolls are detected while they are being unwound therefrom, and braking force applied to both shafts is properly controlled so that each mark on one roll coincides with a corresponding mark on the other roll. CONSTITUTION:Rolls 1, 2 of 2 kinds of blank webs are mounted on shafts 3, 4 which can be brake controlled respectively, and marks displayed on the blank webs are detected by detectors 14, 15 while rolls 1, 2 are being unwound, and braking force of each of shafts 3, 4 is properly controlled so that marks on both rolls coincide each other. This system can be used for a sealant labeling device, in other words it can be used for such a device wherein a roll of blank web of bag to be fed into a bag making machine can be laid over on a roll of printed matter such as a label and they are glued together.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a bag material to be sent to a sealant label device, that is, a bag making machine, and a printed matter such as a label, and is pasted together in a relative position determined by KPfr so that the printed patterns match. Pasting of materials to be combined *Related to lfK.

In recent years, packaging bags for bread, etc.
A bag with a pattern of raw materials printed on it and a label with the same print attached to nine bags is used.

In order to manufacture the packaging bag, a belt-shaped elongated bag material having the above-mentioned printing arranged in a row and an original label material are each supported on a feeding shaft, and the printed patterns of both are manually drawn on the feeding shaft. This was done by adjusting the brake, but this took a lot of time to adjust, wasting a lot of material, and making it impossible to increase the material feed speed beyond cuts per minute. , the production speed was slow.

The present invention automatically aligns the printed patterns, or marks, of such image materials.

The present invention can be applied not only to bag materials and label materials, but also to laminating other types of wood, and can also be applied not only to laminating two materials but also to laminating two or more materials. Of course.

An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in the first diagram, a first material 1 such as a glass film on which various figures, marks, etc. are printed to be formed on the bag, and a second material 2 such as a label made of a glass film to be attached to it. The raw fabric is supported for rotation by respective feed-out shafts 3 and 4, and the feed-out shaft 3 is equipped with a brake 5 with a constant braking force, and the feed-out shaft 4 is equipped with a brake 6 with a variable braking force, such as a powder brake. will be established. In addition, the above second
The label material 2 is a film that can be stretched by heating or stretching.

Above 1. The second system materials 1 and 2 are each provided with a guide roll 7.8,
9 and 10, and guide it between the pressure rolls II and 12, and further send it to the bag making machine via the guide roll 13. Detectors 14 and 15 with markings such as photoelectronic switches are installed on the feed passages for the materials 1 and 2, and on the feed passage for the base material 2, the mating surfaces of the base materials 2 are painted to ensure good adhesion. Partco) 21! A heater 16 for heating L is provided. Note that the part coat 21L may be coated with an adhesive or the wood itself may be made into an adhesive film, or wax paper may be used.
3 is brought into contact with a counter roll 17 for detecting the feed p amount. In addition, output signals a, b, and c of the rotary cylinder 171L connected to the counter roll 17 are input to the computer 9, and this output signal d is input to the brake 6.

Next, the operation of this device will be explained.

Film-like materials 1 and 2 are guide rolls 7.8°9.10
sent downwards through. The part coat 2a of the base material 2 is melted when passing through the heater 16, passes through the guide roll 9, and as shown in the second figure, the base material 2 is superimposed on the base material 1, and the pressure rolls 11 and 12 are formed. Part coat 2a when compressed with
is solidified, and the system materials 1 and 2 are brought into contact with each other and sent to a bag making machine.

The mark on the material 1.2 is the detector 14.

b and o are input to the computer 20, and as shown in the fourth diagram, a signal C is generated at the time interval of each corresponding pulse of the output signals a and b using the output signal a of the mark on the wood 1 as a reference.
The relative distance between the materials 1°2 is measured by the pulse number signal e. Therefore, when the mark on fabric material 1 is ahead of the mark on label material 2 in the computer illusion,
Distance measurement is carried out as shown in the flowchart of Fig. 5, and when the distance has increased, the braking force of the brake 6 is weakened in response to the signal e, and when the distance is decreasing or it is O, the braking force of the brake 6 is reduced. Do not change the brake force.

Conversely, if the mark on the label material 2 is ahead of the mark on the fabric material 1, the mark on the fabric material 1 is read as the mark on the label material 2, and the brake torque control in the label material 2 computer is controlled as follows. In response to the measured signal el/($6), the brake voltage is turned on as shown in the figure, and from that point on, the timer starts, and after the previously given nine data time Then, the timer starts again, and after the previously given data time Y elapses, the timer expires, the brake voltage is turned on again, and the same operation is repeated.

As a result, the brake 6 has an operating time as shown in Figure 7!
The voltage is turned on and off during the pause time Y, and a voltage like the signal d corresponding to the signal 15 acts on the electromagnetic coil.
A current flows as shown by the dotted line in the figure.

The sum of the above action time X and rest time Y is 1
The ratio z; ye=A is changed according to the signal θ, i.e. - cycle time. Changes in B and changes in KIYO ratio, changes in either or both of these changes result in signal d.
This is the result. This controls the brake torque of the brake 6.

Therefore, the feed amount of the material 2 is controlled in accordance with the signal d, and its mark is controlled so as to match the mark of the material 1. At this time, the amount of material 2 to be fed out is reduced compared to the amount of material 1 to be fed out, but this decrease is absorbed by the expansion and contraction of the portion of material 2 that is located in the heater 16.

As described above, according to the present invention, since the marks on the material, that is, the printed pattern, are automatically matched, the adjustment can be made quickly, there is less waste of material, and the wood feeding speed can be increased to 130 bags. /minute, making the production speed more than three times faster than the conventional method.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an outline of an embodiment of the present invention, Fig. 2 is a view of the material viewed from Aja in Fig. 1, Fig. 3 is a block diagram of a computer, and Fig. 4 is a graph of each signal. , Figures 5 and 6 are flowcharts of the computer, and Figure 7 shows the voltage acting on the brake and the current flowing through it, including the current O, y:;, :y:. 1.2・・・・・・・・・First. Second material, 3,4・
・・・・・・・・・Feeding shaft, 6・・・・・・Brake, 14 e 15・・・・・・Detector, a, b
......Output signal, addition...Control device.纂3 图 竟 θ 子 / 2′ fig.

Claims (1)

[Claims] A feed-out shaft that supports the original sheets of first and second materials to be laminated together, a brake with a variable braking force provided on at least one of these feed-out shafts, and superimposition of those materials on each other by a thousand rows. a device for sending the marks on the wood, a detector for detecting the marks on the first and second materials, inputting the output signals of these detectors, and measuring the relative distances between the marks on the wood so that the marks match each other. A device for laminating materials, comprising a device for applying a brake with variable braking force as described above.