JP2010168145A - Film joining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance manufacturing efficiency by automating everything from the delivery of a splice film to splicing the head end of the film to the tail end of the preceding film only by setting into a tip end positioning device for the splice film, and by eliminating both time for heating and cooling of a film forming device during film loading work, and time for releasing to atmosphere and vacuuming. <P>SOLUTION: In the film joining device 33, the head end of a splice film 4a, pasted with a joining tape 9 and pulled out of a next film roll, is joined to the tail end of a preceding film 4 precedingly fed from a film roll 1. The film joining device includes: a clip-type tip end positioning device 5 of the splice film for positioning the head end of the splice film 4a, pasted with a joining tape 9 and placed on an unwinding part 31, to the delivery position; a delivery device 6 of the splice film for grasping and changing grasping the head end of the splice film 4a using a rotation mechanism 10, and for positioning to a predetermined position for joining; and film joining means for overlapping and pressure joining the preceding film 4 and the splice film 4a using the rotation mechanism 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention uses the beginning of a strip-like tape, film, web, etc. (hereinafter collectively referred to as a film) wound in a roll shape, as in the case of supplying a continuous film wound in a roll shape around a core. The present invention relates to a film joining apparatus that is pulled out and connected to the end of the preceding film.

Conventionally, in order to successively draw out a film sequentially from a plurality of rolls, it is common for an operator to join the end portion of a preceding film and the start end portion of a film to be connected with an adhesive tape or the like ( For example, see Patent Document 1).
In addition, even when films are automatically joined, the film gripping mechanism used is presumed to be used in the atmosphere because there are many air adsorption mechanisms.

JP 2005-145708 A

  The problem to be solved by the present invention is that the film roll is loaded on the film support shaft without manually pulling out the film start end of the film roll and set at a predetermined position, and the start end is a clip-type connecting film tip positioning device. It is possible to automatically perform everything from the feeding of the connecting film to the connection of the leading end of the film to the end of the preceding film, or the operation while looking at the inside from the outside of the device, or the monitor. By carrying out remote operation while watching it, the film loading operation at the time of bonding in the atmosphere is excluded.

  Further, the problem to be solved by the present invention is that a film forming apparatus that transports a film (vertical type, horizontal type) by roll-to-roll performs a vacuum during film loading operation by connecting the film in a heating vacuum. It is intended to improve the production efficiency by excluding the heating / cooling time of the device, opening to the atmosphere, and evacuation time.

  That is, the object of the present invention is to automatically perform all the steps from the feeding of the connecting film to the connection of the leading end of the preceding film to the end of the preceding film only by setting the connecting film leading end positioning device, and at the time of film loading operation. It is an object of the present invention to provide a film bonding apparatus capable of improving the production efficiency by excluding the heating / cooling time, opening to the atmosphere, and evacuation time of the film forming apparatus.

  In order to solve the above-described problems of the prior art, the present invention provides a film that joins a leading end of a preceding film fed from a film roll to a leading end of a connecting film drawn from the next film roll. In the joining device, the connecting film tip positioning device which is attached to the unwinding portion and positions the starting end of the connection film at the feeding position, and the rotating end mechanism is used to grip and replace the starting end of the connecting film. A connecting film feeding device for aligning at a predetermined position; and a film bonding means for bonding the preceding film and the connecting film using a rotation mechanism.

  And this invention, Preferably, in Claim 1, the film cutting device which cuts off the film surplus material of the terminal of the said preceding film, and escapes the remaining material of the said film from a connection position, The said connection film is conveyed from a joining position And a film transfer device for transferring to a position.

  In the present invention, it is preferable that the connecting film leading edge positioning device reciprocates a vacuum interrupter provided between the unwinding chamber and the joining chamber to position the connecting film start end at the feeding position. It has become.

  Further, in the present invention, preferably, the connection film feeding device includes a protrusion having a spring mechanism fitted in the hole at the connection film start end, and is fed to a predetermined joining position using a rotation mechanism. It has a function of storing the protrusion.

  In the present invention, preferably, the connection film feeding device and the film bonding means are configured to be rotated by a single rotation mechanism.

As described above, the film joining apparatus according to the present invention joins the film start end portion drawn from the next film roll to the end portion of the film fed in advance from the film roll, A connecting film tip positioning device that is attached to the feeding portion and positions the starting end of the connecting film at the feeding position, and a connecting film feeding device that holds the connecting film starting end by using a rotation mechanism and aligns it at a predetermined bonding position. In addition, a film joining means for joining the current film (previous film) and the connection film using a rotation mechanism is provided.
For joining the current film and the current film, for example, a joining tape may be attached to the terminal portion of the film drawn out from the next film roll, and the preceding film and the connection film may be overlapped and pressed. The joining is not limited to this, and an adhesive, welding, or the like can be used, and the ends can be joined together without overlapping.

  Further, in addition to such a configuration, the present invention cuts off the end film surplus material of the preceding film and releases the remaining material of the preceding film from the connection position, and transfers the connection film from the joining position to the transport position. And a film transfer device.

  Therefore, according to the film bonding apparatus of the present invention, the film roll can be pulled out with a simple mechanism, and both the film bonding apparatus and the connection film feeding apparatus are simultaneously operated to one position with a single action. Therefore, the time required for joining can be minimized.

Further, according to the present invention, the connection film leading edge positioning device can adopt a clip type, and in this case, since the film end is mechanically gripped, it can be used for a vertical transport film. It is.
Furthermore, since it is composed of materials and mechanisms that can be used in the vacuum device, the connecting film starting end can be positioned at the feeding position through a vacuum shut-off device provided between the unwinding chamber and the joining chamber. In addition, when installed in a vacuum device, the film roll can be replaced simply by opening and closing the vacuum shut-off device provided between the unwinding chamber and the joining chamber and opening only the unwinding chamber to the atmosphere. it can.

  In addition, according to the present invention, since the film end is gripped by mechanical sandwiching, it can be reliably gripped and transported not only in the horizontal transport but also in the vertical transport.

  Further, according to the present invention, the connection film feeding device is configured such that the protrusion having the spring mechanism is fitted into the hole at the connection film start end, and is fed to the predetermined joining position using the rotation mechanism, and then the spring is formed at the joining portion. Since the projection having the mechanism is accommodated, it is possible to rotate both the connection film feeding device and the film bonding device by one rotation mechanism, and the rotation drive mechanism has a simple configuration. Cost reduction can be achieved.

It is a schematic diagram which shows the connection film start end part of the joining apparatus of the film which concerns on embodiment of this invention. It is a schematic diagram which shows the film junction part of the joining apparatus of the film which concerns on embodiment of this invention. It is a workflow in the vacuum of the joining apparatus of the film which concerns on embodiment of this invention. It is the schematic of the film-forming apparatus by the roll-to-roll by vertical conveyance, (A) is a top view of the whole structure which shows the Example in the vacuum of the bonding apparatus of the film which concerns on embodiment of this invention, (B) is FIG. 3 is a detailed view of the Y1 part in FIG. 5A, and FIG. 7C is a detailed view of the Y2 part in FIG. It is a side view in the vacuum of the film bonding apparatus of the film-forming apparatus which concerns on embodiment of this invention. (1)-(5) is process drawing which shows the joining apparatus of the film which concerns on embodiment of this invention. In the film bonding apparatus which concerns on embodiment of this invention, it is process drawing which shows a connection film supply apparatus and the beginning of a film bonding process. In the film joining apparatus according to the embodiment of the present invention, it is a detailed view showing a hook for feeding a connection film that uses a rotating mechanism to grip and replace the connection film starting end and align it with a predetermined joining position.

  Hereinafter, the film bonding apparatus according to the present invention will be described in detail based on the embodiments with reference to the drawings.

  A film joining apparatus 33 according to an embodiment of the present invention is schematically configured as shown in FIGS. 1 and 2, and a pair of cores 3A and 3B whose forward and reverse rotations can be freely controlled by a servo motor (not shown). The core 3A is disposed on the connection film side, and the core 3B is disposed on the preceding film side. In FIG. 2 and FIG. 6 to be described later, the case where the starting edge of the film roll waiting on the core 3A is connected to the terminal portion of the film 4a fed from the core 3B is shown. Is also done in the same way.

Hereinafter, for the sake of convenience, the connection side will be referred to as the A side, and the side that is currently pre-feeding will be described as the B side.
A connecting film tip feeding device 6 that moves linearly by appropriate driving means such as a piston cylinder and a connecting film clip chuck 5 connected thereto are arranged along the film conveyance path from the cores 3A and 3B. In relation to the feeding rotary drum 10, a feeding hook (protrusion) 11 having a spring mechanism 15 (see FIGS. 7 and 8) is disposed.
This is because the clip-type chuck 5 is released at the stage where the feeding hook 11 grips the connection film 4 by the feeding rotary drum 10 and is flipped up by a spring mechanism 15 as shown in FIG. It has a structure that does not interfere with transportation. A guide roller 12 is attached to the outer periphery of the feeding rotary drum 10.

  In addition, a large number of holes 8 are formed at predetermined intervals along the width direction at the starting edge of the connection film 4a, and a bonding tape 9 is affixed to the side facing the preceding film 4 Has been. Therefore, in the film bonding apparatus according to the present embodiment, as shown in FIG. 2, the film feeding hook installed at the end of the feeding rotary drum 10 in the opening 8 of the connecting film 4a by the feeding device 6 as shown in FIG. 11 is fitted, and in this state, when the feeding rotary drum 10 whose forward / reverse rotation can be freely controlled by a servo motor (not shown) is rotated, the starting end of the connection film 4a is transferred from the standby position, and the preceding film 4 and It is designed to be set at the joint position.

Furthermore, the film bonding apparatus 33 according to the present embodiment includes a film bonding unit that overlaps and press-contacts the films 4a and 4 on both the 3A side and the 3B side. This film joining means has a feeding rotary drum 10 and a conveying roller 13, and the films 4a and 4 on the 3A side and 3B side are sandwiched between the feeding rotary drum 10 and the conveying roller 13 at a predetermined position. It is comprised so that it may join by pressing.
Here, the feeding rotary drum 10 and the conveying roller 13 are arranged on different axes, but the feeding rotary drum 10 is controlled by a servo motor (not shown). On the other hand, the transport roller 13 is a roller that freely rotates in parallel with the movement of the film 4 without being restricted.
Further, a preceding film end gripping / cutting device 7 for cutting off the end portion of the preceding film 4 after joining is disposed before the films 4a, 4 on both the 3A side and the 3B side are joined at a predetermined position.

  FIG. 3 shows the workflow of joining the films 4a and 4 and the film rolls 3A and 3B in the joining apparatus 33 such as the film forming apparatus 50 for reference.

4A to 4C are schematic views of a film bonding apparatus 33 in a film-forming apparatus 50 based on roll-to-roll by vertical conveyance. FIG. 4A is an overall plan view, and FIG. FIG. 4A is a detailed view of a Y1 portion in FIG. 4A, and FIG. 2C is a detailed view of a Y2 portion in FIG. FIG. 5: has shown the side view in the vacuum of the film joining apparatus of the film-forming apparatus which concerns on embodiment of this invention.
As shown in FIGS. 4A to 4C and FIG. 5, the unwinding unit 31 and the winding unit 32 of the film forming apparatus 50 are each provided with a film bonding apparatus 33. The joining device 33 has three vacuum chambers 30 defined by a vacuum shut-off device 35 and an outer peripheral wall 36. The vacuum chambers 30 include an unwinding chamber 30A, a winding chamber 30B, and a joining chamber 30C. It is made up of. The connecting film roll 1 and the core 3A are mainly arranged in the unwinding chamber 30A, the preceding film roll 2 and the core 3B are mainly arranged in the winding chamber 30B, and mainly in the joining chamber 30C. A feeding rotary drum 10 and a conveying roller 13 are disposed. A vacuum shut-off device 35 is provided between the unwinding chamber 30A and the winding chamber 30B and the joining chamber 30C.
Thereby, only the unwinding chamber 30A of the new film roll 1 is opened to the atmosphere without opening the entire vacuum chamber 30 to the atmosphere when the film roll is exchanged, and the film roll 1 is set at a predetermined position in the opened state. After the hole 8 at the start end of the film 4 is set in the connecting film leading edge feeding device 6, the old and new films can be exchanged only by evacuating only the unwind chamber 30 </ b> A of the new film roll 1.
After the evacuation, as shown in FIG. 5, the connecting film leading edge feeding device 6 can be performed by reciprocating the vacuum shut-off device 35 when it is necessary to feed the connecting film starting end.

A method of joining the film 4 by the joining apparatus 33 of the present embodiment configured as described above will be described with reference to the process diagram shown in FIG.
In FIG. 6 (1), the connection film 4a on the A side (film roll 1 and core 3A) side is set in the connection film clip type chuck 5 in advance, and the connection set when the preceding film 4 approaches the end. The film 4 a is fed toward the feeding rotary drum 10, and preparations for gripping and transferring by the feeding rotary drum 10 are performed. In addition, the preceding film 4 on the B side (film roll 2 and core 3B) side is stopped and preparation for bonding is performed.

  In FIG. 6B, when the film feeding hook 11 installed at the end of the feeding rotary drum 10 is fitted into the hole 8 at the connection film starting end on the A side, the previous connecting film clip chuck 5 The connection film 4 is opened. Then, when the feeding rotary drum 10 whose forward / reverse rotation can be freely controlled by a servo motor (not shown) is rotated, the starting end portion of the connection film 4a is transferred from the standby position and set to the joining position with the preceding film 4. The preceding film 4 on the B side is still stopped and waits for bonding.

In FIG. 6 (3), the A-side connecting film 4 a and the B-side preceding film 4 are pressed against each other by the feeding rotary drum 10 and the conveying roller 13 to start joining. At this time, the retractable film feeding hook 11 having the spring mechanism 15 receives pressure from the conveying roller 13 and is stored closer to the center than the outer peripheral surface of the feeding rotary drum 10.
Further, the joining is stopped immediately after the joining is started, and the preceding film 4 on the B side is gripped / cut by the preceding film end gripping / cutting device 7 at a predetermined position. Thereafter, the rotation of the rotating drum 10 on the A side and the winding speed of the preceding film 4 on the B side are run in parallel, thereby joining up to the cutting end of the preceding film terminating portion on the B side.

  FIG. 6 (4) shows a state in which the pressure welding of the connection film 4 on the A side (film roll 1 and core 3A) and the preceding film 4 on the B side (film roll 2 and core 3B) is completed. ing. Here, the joined connection film 4 is transferred to the conveyance line path by the guide roller 12 attached to the outer peripheral portion of the feeding rotary drum 10. Further, the remaining material after cutting the preceding film 4 on the B side is wound and collected.

  6 (5), the connection film 4 transferred to the conveyance line path by the guide roller 12 in FIG. 6 (4) is set on the circumference of the free rotation conveyance roller 13 that follows the movement of the film. Then, the conveyance of the newly connected film roll 1 is started. At this time, on the B side (film roll 2 and core 3B), the remaining material of the preceding film 4 is collected, and then the film roll is replaced with a new connection film 4.

  The above operations can be performed manually by button operation, but a series of operations can also be performed automatically.

  7 and FIG. 8 show that after the hook 11 of the protruding portion having the spring mechanism 15 is fitted into the hole 8 of the connecting film start end portion and is fed to the predetermined joining position using the rotating mechanism 10 in the connecting film feeding device 6. The mechanism is shown in which the hook 11 having the spring mechanism 15 at the joint is pressed and rotated about the film feeding hook rotating shaft 16 and stored.

FIGS. 7A and 8 show the film grip standby state. The hook 11 protruding from the outer periphery of the feeding rotary drum 10 by the spring mechanism 15 is fitted into the hole 8 at the connection film start end, and the film start end is transferred to the vicinity of the outer periphery of the B-side transport roller 13.
FIG. 7 (2) shows a state where the film start end is transferred. At this time, the hook 11 is pressed against the connection film 4 a, and only the hook 11 is fed out and protrudes outward from the outer periphery of the rotating drum 10.

  When the rotating drum 10 continues to rotate and comes into contact with the outer peripheral surface of the B-side transport roller 13, as shown in FIG. 7 (3), the hook 11 protruding by the spring force of the spring mechanism 15 The outer peripheral surface of the conveying roller 13 is pressed against the outer peripheral surface of the feeding rotary drum 10 and stored in the center side. Thereby, it becomes possible to hold | grip the connection film 4a, without preventing the movement of the connection film 4a which has already started joining.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various changes and modifications can be made based on the technical idea of the present invention.

1 connecting film roll 2 preceding film roll
3 core
4, 4a Film 5 Connecting film clip type chuck 6 Connecting film tip feeding device
7 Leading film end gripping and cutting device
8 Connection film start end hole
9 Connection film start edge bonding tape
10 Feeding rotary drum 11 Film feeding hook
12 Guide roller
13 Transport roller
15 Spring mechanism
16 Film Rotating Hook Rotating Shaft 30 Vacuum Chamber 31 Unwinding Unit 32 Winding Unit 33 Joining Device 35 Vacuum Shut-off Device

Claims (5)

In the film joining apparatus that joins the end of the preceding film fed from the film roll in advance to the beginning of the connecting film drawn from the next film roll,
A connecting film tip positioning device that is mounted on the unwinding portion and positions the starting end of the connecting film at a feeding position;
A connection film feeding device that uses a rotating mechanism to grip and replace the starting end of the connection film, and aligns it at a predetermined position for bonding;
A film bonding apparatus comprising: a film bonding means for bonding the preceding film and the connection film using a rotation mechanism.   A film cutting device that cuts off the remaining film material at the end of the preceding film and releases the remaining material of the film from the connection position; and a film transfer device that transfers the connection film from the bonding position to the transport position. The film bonding apparatus according to claim 1.   The connection film front end positioning device is configured to reciprocate a vacuum shut-off device provided between an unwinding chamber and a joining chamber to position the connection film start end at a feeding position. The film bonding apparatus according to 1.   The connection film feeding device has a function of fitting a projection having a spring mechanism into a hole at the start of the connection film and feeding the projection to a predetermined joining position using a rotation mechanism, and then storing the projection at the joining portion. The film bonding apparatus according to claim 1, wherein the film bonding apparatus is provided.   3. The film bonding apparatus according to claim 1, wherein the connecting film feeding device and the film bonding means are configured to rotate by a single rotation mechanism.

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