JPH10156260A - Intermittent coating mechanism in cartridge type adhesive tape coating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend the use time of an adhesive tape used in a cartridge type adhesive tape coating machine substantially by two or three times as compared with a conventional one by effectively conserving the consumption thereof. SOLUTION: When an adhesive is effectively used, if a coating.non-coating part is finely divided, there is no practical problem even in an intermittent coating ratio of about 50%. Noticing this fact, a control roller having function controlling this coating ratio is provided to a cartridge type adhesive tape coating machine. By this constitution, the use time of the cartridge type adhesive tape coating machine can be extended to a large extent and large economical effect is imparted to a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing a tape coated with a transferable adhesive in a cartridge type
It belongs to the technical field of "cartridge-type adhesive tape applicator" that functions to apply an adhesive.

2. Description of the Related Art At present, a cartridge type adhesive tape applicator in which a transfer adhesive is applied to a thin film tape and stored in a container has been widely used in the market because of its simplicity. On the other hand, when compared with conventional various types of glues and adhesives, the length of the built-in tape is limited to some extent, and the price is relatively high because of the "disposable type". Therefore, development of a “method that can be used at a low price” as compared with conventional products is desired.

The following solution has been obtained with respect to a system for extending the use time of a cartridge type adhesive tape applicator as compared with a conventional product. That is, when the adhesive is applied in a certain width, there is no need to apply the adhesive in a continuous state.
Even at an intermittent coating rate of 50%, there is no practical problem. If this intermittent application method is applied to a cartridge-type adhesive tape applicator and the used portion of the adhesive tape can be reduced as much as possible, the use time can be substantially extended. Therefore, the configuration of a mechanism for controlling the contact ratio of the application portion at the tip to the adhesive surface is an issue.

Means for Solving the Problems In general, a cartridge-type adhesive tape applicator has a tip-applying portion of a type employing an application roller and a type employing an application tongue. is there. As a means for solving the problem, the application part of the application roller or the application tongue piece alternately generates “a state in which the adhesive tape is applied in contact with the adhesive surface” and “a state in which the tape is released from the adhesive surface and the tape is not applied”. Consider the mechanism. Specifically, (a) a cartridge type adhesive tape applicator is provided with a single unit or a pair of control rollers connected by a rotating shaft at a tip portion of the adhesive tape applicator where the tape is applied. This control roller has a radius in which the distance between the rotation axis and the periphery is partially different, that is, a major axis and a minor axis, and has a symmetrical shape when connected by the rotation axis. As an example, the shape may be a disk having portions with different radii, an elliptical shape, a disk having an eccentric rotation axis, or the like. (B) In an adhesive tape applicator equipped with an application roller, this control roller is installed in the vicinity of the application roller or so as to rotate independently but coaxially with the application roller.
On the other hand, in an adhesive tape applicator provided with an application tongue piece, it is installed in the vicinity. (C) The control roller rotates with the movement of the main body when the adhesive tape is applied. In addition, in the process of rotating any of the control rollers, in the long diameter portion where the distance between the rotating shaft and the grounding surface is long, a `` state where the application roller and the application tongue piece are released from the adhesive surface and the adhesive tape is not applied '' is formed, In the short diameter portion where the distance from the ground surface is short, a “state in which the adhesive tape is applied in contact with the adhesive surface” is formed. By the above-described means, the portion where the adhesive is applied and the portion where the adhesive is not applied are alternately formed, and the effect of using the adhesive tape by extending the use time substantially can be obtained.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a cartridge type adhesive tape applicator, an adhesive tape 2 with an adhesive is wound around a reel and stored in a cartridge, and is applied by an application roller 1 and an application tongue piece 4 as shown in FIGS. Crimp to the required location. The adhesive 3 is applied to the pressed portion, and the base of the tape from which the adhesive has been removed is taken up by a take-up reel built in the applicator. The outer periphery of the application roller 1 is made of an elastic body, and the application tongue 4 has a spring property with respect to the bonding surface, so that the pressure bonding is ensured. Generally, when an adhesive is applied, it is usual to apply the adhesive continuously to a required portion. On the other hand, in the process of examining a method of obtaining an adhesive effect substantially equivalent to the conventional one with a minimum amount of adhesive, there was no practical problem if the following method was adopted, and it was confirmed that the equivalent effect could be obtained. done. (1) The adhesive is applied intermittently alternately between the application part and the non-application part. (2) The applied portion and the non-applied portion are applied in a finely divided state. (3) An intermittent coating rate of 40 to 50%. FIG. 1 illustrates the relationship between the continuous application state of the adhesive and the intermittent application state to facilitate understanding of the principle of the present invention. The figure of the intermittent application shows an application state where the fineness of the applied part and the non-applied part is changed at the same application rate of 50%. This intermittent coating method is effective when the adhesive or the bonding method is expensive. The present invention is intended to apply this method to a cartridge type adhesive tape applicator so as to reduce the use portion of the adhesive tape as much as possible and to extend the use time substantially. Further, the control roller is described in the section of the means for solving the problem (A)
(B) The coating roller 1 having the characteristics (c)
The ratio in which the coating tongue piece 4 alternately produces a “state in which the adhesive tape is applied in contact with the adhesive surface” and “a state in which the adhesive tape is released from the adhesive surface and the tape is not applied”, that is, the application rate in intermittent application is approximately Is the ratio of "the entire outer circumference of the control roller" to "the length of the arc of the minor diameter portion of the control roller", and can be set to an appropriate value according to the use and purpose to be used.
FIGS. 4, 5, and 6 show specific shapes of the control roller. FIG. 4 is a front view and a side view of a disk-shaped control roller 5 having different radii to the periphery, and FIG. 6
FIG. 6 is a side view of a disk-shaped control roller 7 having an eccentric rotation axis. FIG. 7 shows, as an example, a connected state 8 of the disc-shaped control roller 5 having a different radius from the application roller 1. The main body is assembled in this state. FIG.
Is a case where the long diameter portion of the control roller 5 is in contact with the bonding surface, and the application roller 1 is in a state of floating above the bonding surface. Therefore, the adhesive tape 2 is separated from the adhesive surface in this arc portion, and the adhesive stops. During this time, the adhesive tape 2 does not move and remains stationary. FIG. 9 shows a case where the short diameter portion of the control roller 5 is in contact with the adhesive surface, and the application roller 1 presses the adhesive tape 2 on the adhesive surface. Therefore, the adhesive 9 is applied in this arc portion. At this time,
The coating roller 1 is compressed to the short diameter portion of the control roller 5 because of its elasticity, and both rotate integrally. FIG. 10 shows a state in which the application tongue 4 is lifted up from the bonding surface by the long diameter portion of the control roller 5 and the bonding is stopped. Also, during this time, the adhesive tape 2 does not move and remains stopped. FIG.
Indicates a state in which the application tongue piece 4 adheres to the short diameter portion of the control roller 5. The control roller 5 rotates according to the movement of the main body. During this time, the application tongue 4 presses the adhesive tape 2 against the adhesive surface by its own spring property. When the main body is actually operated, the states of FIGS. 8 and 9 and FIGS. 10 and 11 are alternately repeated. FIG. 12 shows the relationship between the control roller 5, the adhesive tape 2, and the adhesive surface 9 on which the intermittent application has been performed, in the above-mentioned application state and non-application state. When the control roller 5 makes one rotation, it comes into contact with the bonding surface in the order of the short diameter portion 10 → the long diameter portion 11 → the short diameter portion 12 → the long diameter portion 13. As a result, the short diameter portion 10 of the control roller 5 is provided with the adhesive (adhesion surface) 14 and the long diameter portion 11.
Is the non-adhesive surface 15, and the short diameter portion 12 is the adhesive (adhesive surface) 1.
6 and the major diameter portion 13 carries the non-adhesive surface 17. On the other hand, the length of the adhesive tape consumed by one rotation of the control roller corresponds to portions 18 and 19 in the adhesive tape 2.
The length (18 + 19) of the consumed adhesive tape is the intermittently applied length (adhesive surface 14 + non-adhesive surface 15 + adhesive surface 1).
6+ non-bonded surface 17). Therefore, when a predetermined length of bonding is performed using an adhesive tape applicator equipped with a control roller having a coating rate of 50%, the amount of the adhesive tape to be used is half that of the conventional amount. The object of the present invention can be realized by the above process.
FIG. 13 shows an example in which the control roller is provided in an application roller type adhesive tape applicator, and FIG. 14 shows an example in which the control roller is provided in an application tongue type adhesive tape applicator.

According to the present invention, in a cartridge type adhesive tape applicator, intermittent application is performed in order to reduce the consumption of the adhesive tape, and the same adhesive effect as the conventional continuous application is realized. As a result, the use time of the cartridge-type adhesive tape applicator can be greatly extended, and a great economical effect is provided for the user.

[Brief description of the drawings]

FIG. 1 shows an intermittent application state of an adhesive according to the present invention and a conventional continuous application state.

FIG. 2 shows a state in which an adhesive is applied by an application roller.

FIG. 3 shows a state of application of an adhesive by an application tongue.

FIG. 4 shows a front view and a side view of a disk type control roller having different radii to the periphery according to the present invention.

FIG. 5 shows a side view of an elliptical control roller according to the present invention.

FIG. 6 is a side view of a disk-type control roller having an eccentric rotation shaft according to the present invention.

FIG. 7 shows a combined state of the application roller and a disk-shaped control roller having different radii in the present invention.

FIG. 8 shows a state in which the coating roller rises above the adhesive surface due to the long diameter portion of the disc-shaped control roller having a different radius in the present invention, the adhesive tape is not used, the stopped state is maintained, and the adhesive is stopped.

FIG. 9 shows a state in which an application roller is performing bonding at a short diameter portion of the control roller in the present invention.

FIG. 10 shows a state in which the coating tongue is lifted up from the bonding surface due to the long diameter portion of the disc-shaped control roller having a different radius in the present invention, the adhesive tape is not used, the stop state is maintained, and the bonding is paused. .

FIG. 11 shows a state in which a coating tongue piece is adhered to a short diameter portion of the control roller 5 according to the present invention.

FIG. 12 shows the relationship between a disc-shaped control roller having different radii, an adhesive tape, and an adhesive surface on which intermittent application has been performed in the present invention, and illustrates the application state of FIGS. 8, 9, 10, and 11; It is.

FIG. 13 shows an example of an application roller type adhesive tape application machine having a control roller according to the present invention.

FIG. 14 shows an example of a coating tongue type adhesive tape coating machine provided with a control roller according to the present invention.

[Explanation of symbols]

1 is an application roller 2 is an adhesive tape 3 is a continuously applied adhesive 4 is an application tongue 5 is a disk-type control roller 6 having a different radius 6 is an elliptical control roller 7 is a disk-type control roller having an eccentric rotation axis Numeral 8 denotes a connection state of the disc-shaped control roller 5 having a radius different from that of the application roller 1. Reference numeral 9 denotes an adhesive surface on which intermittent coating has been performed. Reference numeral 10 denotes a short diameter portion of the control roller 5. Reference numeral 11 denotes a long diameter portion of the control roller 5. The short-diameter portion 13 is a long-diameter portion of the control roller 5, the adhesive surface 15 intermittently applied by the application roller 1 and the short-diameter portion 10 of the control roller 15. The adhesive surface 16 is an adhesive surface 17 intermittently applied by the application roller 1 and the short-diameter portion 12 of the control roller 17 is a non-adhesive surface on which the adhesive is prevented from being applied by the long-diameter portion 13 of the control roller 18 is a control roller The portion 19 of the adhesive tape applied by the short diameter portion 10 is the portion of the adhesive tape applied by the short diameter portion 12 of the control roller 20 is an example of an application roller type adhesive tape applying machine having a control roller 21 is a control roller Example of a tongue-type adhesive tape applicator equipped with

Claims (2)

[Claims] In order to intermittently apply an adhesive by a cartridge-type adhesive tape applicator, an independently rotating and partially different radius is provided near or coaxially with an application roller at a tip end. A control roller consisting of a disk having an elliptical shape and a disk having an eccentric rotation axis, etc. is provided.The coating roller is moved to the `` adhesion surface by the change in the distance between the rotation axis of the control roller that rotates as the main body moves and the adhesion surface. A cartridge type characterized by alternately producing a state in which the adhesive is applied by pressing, and a state in which the adhesive is released from the adhesive surface and the adhesive ratio can be controlled by the ratio. Intermittent coating mechanism for adhesive tape coating machine. 2. For the purpose of intermittently applying an adhesive by a cartridge type adhesive tape applicator, a disk, an elliptical and an eccentric rotating shaft having a partially different radius are provided near an application tongue at the tip. A control roller consisting of a disk or the like is provided, and the change in the distance between the rotation axis of the control roller, which rotates with the movement of the main unit, and the bonding surface causes the coating tongue to `` apply pressure on the bonding surface and apply the adhesive. And a state in which the adhesive is not applied because the adhesive is released from the adhesive surface, and the ratio of the adhesive can be controlled by the ratio.