JPH01321265A - Method of adhering film to small winding bobbin - Google Patents

Abstract

PURPOSE:To automatize the adhesion process by sticking an adhesive double coated tape to a determined position of a film, feeding the film between a touch roller made in rolling contact with the outer circumference of a small winding bobbin and said bobbin to adhere the tape to the bobbin. CONSTITUTION:A cut off adhesive double coated tape is moved to and stopped in the position facing a color film 12 according to the intermittent rotation of the drum 24 as it remains adhered to the feed drum 24. On the other hand, a small winding bobbin 10 is also stopped when reached to the position to stick the film 12 to the tape 20. When the bobbin 10 is stopped, a pressing device 28 is driven by a control device 38, and an application block 28A pushes up the film from the lower part to press it onto the drum 24, whereby the tape 20 is pressed and adhered to the film 12. When entering between the bobbin 10 and a touch roller 16, the tape 20 is adhered to the outer circumference of the bobbin 10 by the pinching force of the roller 16. At this time, the film 12 is cut off in the position adjacent to the bobbin 10A side of the tape 20.

Description

[Detailed description of the invention] [Industrial application field]

This invention relates to an improvement in the method of adhering a color film, such as a sublimation color film used in a thermal printer, etc., to a small-winding bobbin when the color film is small-winded from a printed original roll to the small-winding bobbin. . [Prior Art] Conventionally, in the termination process of this type of color film, that is, in the case of a small-winding bobbin, the starting end of the winding is adhered to the outer periphery of the small-winding bobbin with double-sided tape, and this adhered end is then wound. First, a color film is wound onto a small bobbin. Conventionally, when adhering the color film as described above to the small-roll bobbin using double-sided tape, the double-sided tape is first applied to the small-roll bobbin, and then the pre-positioned color film is attached at a position close to the double-sided tape. A small winding bobbin is pressed onto the film, and the end of the film is adhered to the double-sided tape.

[Problem to be solved by the invention]

The above conventional method of pasting double-sided tape on the small-winding bobbin in advance and adhering the end of the color film to it is such that the double-sided tape pasted on the small-winding bobbin is always facing toward the color film. Therefore, it is necessary to adjust the position of the small-winding bobbin in the rotating direction. Furthermore, double-sided tape must be pasted on the small-winding bobbin in advance, so it is difficult to adjust the position of the small-winding bobbin in the rotational direction. It was difficult to fully automate the film bonding process.

[Purpose of the invention]

This invention has been made in view of the above-mentioned conventional problems, and is a small winding bobbin that does not require position control in the rotational direction of the small winding bobbin and affixing double-sided adhesive tape to a predetermined position of the small winding bobbin. The purpose of the present invention is to provide a method for bonding a film to a bobbin. (Means for Solving the Problems I) This invention includes a step of pasting a double-sided adhesive tape on a predetermined position of the film on the entry side of the small-winding bobbin, a touch roller that rolls into contact with the outer periphery of the small-winding bobbin, and A step of feeding the film between the small-winding bobbin and adhering the double-sided adhesive tape stuck to the film to the small-winding bobbin, and after this adhesion, The above object is achieved by configuring a method for adhering a film to a winding bobbin, which includes a step of cutting the film.

[Effect] In this invention, the double-sided adhesive tape is pasted in advance to a predetermined position of the film on the entry side of the small-winding bobbin, and is fed between the small-winding bobbin and the touch roller as it is, so that the double-sided adhesive tape is attached to the small-winding bobbin. The edges of the film are glued together using double-sided adhesive tape. Therefore, position control of the small winding bobbin in the rotational direction becomes unnecessary. Furthermore, since the double-sided adhesive tape can be attached to a predetermined position on the film while the film is in a flat shape, it can be automated relatively easily. [Actual travel example]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of adhering a film to a small winding bobbin according to the present invention will be described in detail below with reference to the drawings showing an apparatus for carrying out this method. As shown in FIG. 1, this device includes a tape pasting device 14 for pasting double-sided adhesive tape on a predetermined position of the color film 12 on the upstream side of the small winding bobbin 10, and a touch roller 16 that makes contact with the
This touch roller 16 and a cutter 18 disposed on the exit side of the contact point of the small winding bobbin 10 are provided to constitute a film bonding device. The configurations of the small winding bobbin 10 and the cutter 18 are the same as those of the prior art, so a detailed explanation will be omitted. The tape applying device 14 includes a hexagonal feed drum 24 that unwinds the double-sided adhesive tape 20 from the tape roll 22 by rotating intermittently in the counterclockwise direction in the figure while adhering the double-sided adhesive tape 20. , this feed drum 24
A tape cutter 26 is disposed close to the outer periphery of the hexagon and cuts the double-sided adhesive tape 20 adhered to the feed drum 24 at the apex position of the hexagon; The device includes a pressing device 28 arranged to face the film 12 against the skin. The hexagonal outer periphery of the feed drum 24 is made of a difficult-to-adhesive material, such as Teflon (trademark), with grooves formed on the surface, and the apexes of each hexagon are A slit 32 is provided so that the cutting tool 26A of the tape cutter 26 can enter therein. The tape cutter 26 is driven by an actuator 26B along a guide 26C in the left-right direction in FIGS. 26A
is moved to the right by the actuator 26B, so that the double-sided adhesive tape 20 adhered to the feed drum 24 is cut. Reference numeral 24A in the figure is a motor for rotationally driving the feed drum 24, and 24B intermittently transmits the output of this motor 24A to the feed drum 24, and drives the feed drum 24 intermittently at intervals of 60''. In addition, reference numeral 22A in FIG. 2 is an idle roller for guiding the double-sided adhesive tape 20 unwound from the tape roll 22, and 22B is the double-sided adhesive tape that has passed through the guide roller 22A. 2
0 to the upper side of the feed drum 24, and 22C is a take-up roller for winding up the release paper 2OA peeled off from the double-sided adhesive tape 20 that has passed through the press roller 22B. The pressing device 28 is arranged below and parallel to the feed drum 24 and parallel to the rotation axis of the feed drum 24.
guide roller 36A for feeding the color film 12;
36B. This pressing device 28 is provided on the lower surface of the feed drum 24.
A pressure bonding block 28A for pressing the color film 12, an air cylinder device 28B for driving the pressure bonding block 28A in the vertical direction in the figure, and a pressure bonding block 28A for guiding the pressure bonding block 28A in the vertical direction in FIGS. 1 and 2. It is composed of a guide 28C and a suction device 28D. The guide 28C is fixed to the frame 34. The suction device 28D also includes a suction hole 29A formed on the surface of the crimping block 28A in contact with the color film 12, a negative pressure source 29B, and a negative pressure pipe that transmits the negative pressure of the negative pressure source 29B to the suction hole 29A. line 29C and this negative pressure line 2
9C, and a switching valve 290 disposed in the middle of the valve 9C. The small winding bobbin 10, the motor 24A1 in the tape applying device 14, the actuator 2 of the tape cutter 26
6B, the air cylinder device 28B of the pressing device 28, and the switching valve 29D of the adsorption device 28D are each controlled by the control device 3.
8. Further, the small winding bobbin 10 has the following functions:
The bobbins 10 for small winding are moved in a direction away from the touch roller 16, and new small-winding bobbins 10 are successively placed in positions where they come into contact with the touch roller 16. - In the film, the color film 12 is wound into three colors of black < Bk), cyan (C), magenta (M) and yellow (Y) or C, M and Y excluding 3k. They are printed sequentially with equal length in the direction without any gaps. The small winding bobbin 10 is wound with the Bk section as the winding start end. Normally, when the small winding bobbin 10 winds up the color film 12 by a preset length, the starting end of the color film 12 to be wound on the next small winding bobbin 10 is aligned with the feeding drum 24. When it comes to the lower side position,
It can be stopped. Next, the operation of the above device will be explained. When the small winding bobbin IOA winds up the color film 12 until just before the end of winding, the winding is stopped as described above. Next, the small-winding bobbin 10A that has just finished winding the color film 12 is separated from the touch roller 16 without cutting the color film 12, and at the same time, a new small-winding bobbin 10 is placed on the touch roller 16.
Set it in the specified position where it touches 6. On the other hand, the double-sided adhesive tape 20 is unwound from the tape roll 22 in advance, and the feed drum 20 is
4, and the motor 24A and the intermittent rotation mechanism 24B rotate the feed drum 24 intermittently at intervals of 60''.
Rotate counterclockwise in the figure. The release paper 2OA is wound up on the winding row 522C. During this process, the feed drum 24 is set in advance so that each vertex thereof stops intermittently at the position of the tape cutter 26. The tape cutter 26 is driven by the control device 38 every time the feed drum 24 stops, and the cutting tool 26A cuts the double-sided adhesive tape 20 adhered to the feed drum 24. The cut double-sided adhesive tape 20 remains adhered to the feed drum 24 and comes to a position facing the color film 12 as the feed drum 24 rotates intermittently. When the double-sided adhesive tape 20 reaches a position parallel to the color film 12, the feed drum 24 is stopped. On the other hand, as described above, the small winding bobbin 10 is also stopped when the color film 12 comes to the position where the double-sided adhesive tape 20 is to be attached. When the small roll pobbin stops, the air cylinder device 28B in the pressing device 28 is driven by the control device 38, whereby the pressing block 28A pushes up the color film 12 from below and presses it against the feed drum 24. As described above, the double-sided adhesive tape 20 cut in advance is adhered to the feed drum 24, and the adhesive surface is formed of a grooved difficult-to-adhesive material, so that the color film 12 side The double-sided adhesive tape 20 is more strongly pressed and bonded. Therefore, when the switching valve 29D is turned on by the control device 38 and the pressure bonding block 28A is moved downward while applying negative pressure to the suction hole 29A, the double-sided adhesive tape 20 remains adhered to the color film 12 and is removed from the feed drum. It peels off from 24. The control device 38 turns off the switching valve 29D.
．． After introducing the atmosphere and releasing the negative pressure suction, the color film 12 is moved to a position between the small winding pobbin 10 and the touch roller 16 with the double-sided adhesive tape 2o attached to the upper surface in the figure. Sent. ``When the double-sided adhesive tape 20 enters between the small-rolling pobbin 10 and the touch roller 16, it is adhered to the outer periphery of the small-rolling pobbin 10 by the pinching force of the touch roller 16. At this time, the tape cutter 26 is driven to cut the color film 12 into the small winding bobbin IO of the double-sided adhesive tape 20.
Cut at a position adjacent to side A. The end of the cut color film 12 is wound up on the small roll roll 10A, thereby completing winding. On the other hand, the subsequent color film 12 is attached to the double-sided adhesive tape 2
0, the starting end thereof is adhered to the small winding pobbin 10, so that it is sequentially wound onto the small winding pobbin 10. In addition, in the above embodiment apparatus, the double-sided adhesive tape 20 is applied to a predetermined position of the color film 12 by the tape application device 14 including the feed drum 24, etc., but the present invention is not limited to this. The present invention is not limited to this, and the double-sided adhesive tape may be attached to a predetermined position of the color film 12 by other attachment means or manually. [Effects of the Invention] Since the present invention is constructed as described above, there is no need to control the position of the small-rolling pobbin in the rotational direction, and double-sided adhesive tape can be pasted at a predetermined position of the small-winding pobbin. It has an excellent effect in that it can be easily adhered to the starting end of a small roll of the film without any problems. Additionally, since the small winding machine is equipped with a standard function to control the position of the double-sided adhesive tape on the color film and the rotational direction of the small winding machine, it is relatively easy to apply the double-sided adhesive tape to the film. can be automated.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an apparatus for carrying out the method of adhering a film to a small roll pobbin according to the present invention, FIG. 2 is an enlarged sectional view taken along the line ■-■ in FIG. 1, and FIG. The figure is a sectional view taken along line I[[-1 of FIG. 10... Small roll pobbin, 12... Color film, 14... Tape pasting @ device, 16... Touch roller, 18... Cutter,
20... Double-sided adhesive tape, 24... Feeding drum,
28... Pressing device, 38... Control device.

Claims (1)

[Claims] (1) Attaching double-sided adhesive tape to a predetermined position of the film on the entry side of the small-winding bobbin, and placing the film between the touch roller that rolls into contact with the outer periphery of the small-winding bobbin and the small-winding bobbin. the double-sided adhesive tape affixed to the film to the small winding bobbin, and after this adhesion, the film on the tip side of the double-sided adhesive tape is cut. How to attach film to a small bobbin.