JPH01146741A - Adhering method of film sheet to panel and laminator used for it - Google Patents

Abstract

PURPOSE:To enable a film sheet to be stuck to a panel, while said panel is continuously transferred by a method in which when a film sheet is stuck to a panel, the temporarily fitting member for fitting the held tip of the continuous film to the front end of the panel is moved at the same speed as the transferring speed of the panel. CONSTITUTION:When a sensor 39 senses the tip of a panel 2, simultaneously a movable roller 32' and a panel 33 start to move, and a temporarily fitting member 16 and a cutter 24 are moved at the same speed as the transferring speed of the pawl. At the state where the temporarily fitting member 16 is held at the tip of the continuous film 6, said member 16 approaches the pawl 2, and the tip of the film 6 is pushed to the front end of the panel 2 and is temporarily fitted, thereby moving and press bonding the panel in the state of the panel 2 being pushed. When the senses 39 senses the rear end of the panel 2, a whole block member 11 is approached to the panel 2 and simultaneously the cutter 24 is rotated and moved, thereby cutting the film. At this time the moving speed of the block member 11 is substantially equal to the running speed of the film 6 before said film is perfectly stuck to the panel 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for attaching film sheets cut from a continuous film to panels, and a laminator for use therein.

(Prior Art) Japanese Patent Publication No. 62-49169 describes a method for attaching a film sheet to a panel, in which continuous film tacking with a laminator involves a step of transporting the panel to a station;
The continuous film tacking includes the steps of tacking the leading end of a continuous photosensitive dry film to the front end of the panel at a station, and continuously attaching the continuous film to the tacking panel. and cutting the continuous film to correspond to the length of the panel to form a film sheet, the cutting of the continuous film continuously attaching the film to the panel. In the step of applying the adhesive, the adhesion is carried out by the cutter while running the cutter along the longitudinal direction of the film at a speed substantially equal to the longitudinal traveling speed of the film before adhesion, without interrupting the adhesion. A method of attaching a film sheet to a panel is disclosed.

Further, the publication describes that a laminator for attaching a film sheet to a panel includes a laminator main body, and a conveying device for conveying the panel before and after the laminator main body, and further includes the laminator main body, A tacking member for tacking the leading end of the continuous film to the front end of the panel is a member, and the continuous film of the laminator is positioned in the conveying path of the conveying device and the continuous film is supplied. A tacking member that can approach and move away from the panel at a tacking station, and a pair of upper and lower pressure rolls for attaching the continuous film whose tip is tacking to the front end of the panel to the panel. and a cutter for cutting the continuous film being applied to the panel by the pressure roll to form the film sheet, the cutter having a longitudinal running speed substantially equal to the longitudinal running speed of the continuous film before application. A laminator is also disclosed which is characterized in that it is movable at a speed equal to .

The method described above and the laminator used therein involve the process of cutting a continuous film whose tip is temporarily attached to the front edge of the panel into film sheets of a predetermined length and attaching the film to the panel while transporting the panel. This is advantageous in terms of work efficiency because it can be performed continuously without interruption.

However, tacking the film onto the panel sometimes still required stopping the transport of the panel. Therefore, the panel conveying device repeats intermittent movement of conveying and stopping each time the tacking operation is performed, which has been a major restriction on the work.

First, the panel conveyance device of the laminator has to stop temporarily between each tacking operation, which reduces the panel conveyance capacity, and therefore the operating speed of the panel supply conveyor or other panel supply device connected to the panel conveyance device of the laminator is reduced. will also be restricted. For example, a continuously operating panel feed conveyor must feed panels with large spacing between panels or at a speed slower than the speed of the laminator's panel transport device.

On the other hand, in order to maintain the operating speed of the panel feeding device at a reasonably high value, the panel conveying device of the laminator is required to operate at high speed to compensate for the intermittent stoppage time, but this depends on the durability of each mechanism, Not much can be expected from the viewpoint of maintaining accuracy and stability of product quality.

Furthermore, when such a laminator is incorporated as part of a production line system, the intermittent feeding of panels makes it difficult to control the entire system.

(Problems to be Solved by the Invention) Therefore, the present invention solves the essential drawback of conventional laminators, that is, the need to feed panels intermittently for film tacking, and temporarily It is an object of the present invention to provide a method for attaching a film sheet while continuously conveying it without stopping, and a laminator for use in the method.

(Means for Solving the Problems) In order to achieve the above object, according to the first invention of the present application, there are a step of conveying a panel through a laminator main body, and a step of temporarily attaching a leading end of a continuous film to the front end of the panel. a step of continuously adhering the film to the panel to which the continuous film has been temporarily attached; and a step of continuously adhering the film to the panel before adhesion. cutting the film corresponding to the length of the panel without interrupting the adhesion while running the cutter along the length of the film at a speed substantially equal to the longitudinal running speed of the film; forming a film sheet, and the tacking of the continuous film includes the step of tacking the continuous film while holding the leading end of the continuous film while moving the member at the same speed as the panel while the panel is being conveyed. Provided is a method for attaching a film sheet to a panel, characterized in that the tacking is performed by a member without interrupting the conveyance of the film sheet.

According to a second invention of the present application, a laminator for attaching a film sheet cut from a continuous film to a panel includes a laminator main body and a transport device for transporting the panel through the laminator main body. , furthermore, the laminator main body is
The tacking member for tacking the leading end of the continuous film to the front end of the panel is a member capable of holding the leading end of the continuous film and movable at the same speed as the conveyance speed of the panel. a member, a pair of upper and lower pressure rolls for adhering the continuous film whose tip is temporarily attached to the front end of the panel to the panel, and cutting the continuous film attached to the panel by the pressure rolls; and a cutter for forming the film sheet, the cutter being movable at a speed substantially equal to the longitudinal running speed of the continuous film before deposition. .

In addition, in the present invention, "adhering" and "tacking" mean...
It includes various forms such as thermocompression bonding, compression bonding that does not use heat, and bonding using adhesive.

In addition, "panels" may be made of glass epoxy copper-clad laminates, iron plates, or plastics, silver, or other materials depending on the purpose, and "films" may include masking films or other covering films in addition to photosensitive films. Can be done.

(Function) When attaching a film sheet to a panel using the laminator of the present invention, the tacking process for holding the leading edge of the continuous film and tacking it to the front end of the panel is carried out at the same speed as the conveyance speed of the panel. Since it can move at high speed, tacking can be done while transporting the panels. Tacking work must be done when the relative speed between the component and the panel is zero, whereas in the past, the panel was stopped in line with the component. In the present invention, tacking is performed by moving the member at the same speed in accordance with the panel, thereby reducing the relative speed between the two to zero.

According to the present invention, the operation of cutting a continuous film into a film sheet of a predetermined length can be performed during the film attachment operation without stopping the conveyance of the panel. This is because the cutter can move at a speed substantially equal to the longitudinal speed of the continuous film, ie the relative speed between the cutter and the continuous film can be zero.

Therefore, according to the present invention, it is possible to temporarily attach a film to a panel, from the film attachment operation to the film cutting operation, without stopping the conveyance of the panel.

(Embodiment) As shown in FIG. 1, the laminator according to the present invention includes a laminator main body 1, an entrance roller conveyor 3 serving as a conveying device for conveying panels 2 before and after the main body 1, and an exit roller It includes a conveyor 4. Since the film is normally required to be attached to both the upper and lower surfaces of the panel 2, the uminator main body 1 has a vertically symmetrical structure with respect to the conveyance path of the panel 2. Therefore, in the following description, only one (upper) structure will be described in detail.

FIG. 2 is a fragmentary schematic side view for explaining the present invention in detail, and FIG. 3 is a side view for showing the detailed structure of the entrance roller conveyor 3 and the laminator main body l. The laminator main body 1 has side plate-like support members 5 (only one shown) on both sides. Between the support members 5 on both sides, a film supply roll 7 on which a continuous film 6 is wound,
A protective film 8 covering the film 6 when the film is supplied
A take-up roll 9 for winding up is mounted. A plate-shaped block member 11 is attached to a guide rail 10 fixed to each support member 5 so as to be slidable up and down. Each block member 11 is provided on each support member 5; a chain 13 stretched around a chain wheel 12;
are connected to each other via a connecting member 42. Therefore, by driving the chain 13, each block member 11 is positioned in the conveyance path between the inlet roller conveyor 3 and the outlet roller conveyor 4, and the continuous film tacking where the film 6 is fed. can move toward and away from the station along the longitudinal direction of the film 6.

Further, a guide rail 14 is provided on the block member 11 in parallel with the direction of movement of the panel, and this guide rail 14
Another plate-shaped block member 15 is attached as a guide member and is slidable in parallel to the panel advancing direction. An air cylinder 17 and an air cylinder 18 are connected in series to this block member 15, and the block member 15 is driven by these two air cylinders.

Further, the block member 15 is provided with a guide rail 19 and an air cylinder 20 for linearly moving the member 16 in the vertical direction during temporary attachment.

The guide rail 19 and air cylinder 20 allow the tacking member 16 to move toward and away from the panel at the tacking station. For temporary attachment, the member 16 has a structure that is long in the transverse direction with respect to the traveling direction of the panel, and is equal to or slightly longer than the maximum width of the film 6.

During tacking, the member 16 has the role of guiding the continuous film, and performs tacking while adsorbing the film as will be described later. Therefore, a plurality of rows of vacuum suction holes 21 are provided on the suction guide surface of the tacking member 16 along the width direction of the film. Each company 21 is connected to a vacuum generator (not shown). Each company 21 is valve-controlled so that it can be operated selectively for each section, and the valves are opened and closed depending on the width and length of the film to be applied.

A bracket 25 is attached to the lower part of each block member 15, and a guide bar 2 extends between the brackets 25 on both sides.
A cutter 24 held by a cutter holder 26 is mounted on the cutter 2 and the rack 23 . The cutter 24 has the shape of a rotating round blade and is rotated by a single motor 24' attached to a cutter holder 26. At the same time, the pinion 24'' attached to the motor 24' rotates and engages with the rack 23, so that the cutter 24 moves along with the cutter holder 26 on the guide bar 22 in the width direction of the continuous film. A continuous film can be cut, although a separate motor may be used to move the cutter 24 laterally.

When cutting the film, the cutter 24 cuts each block member 11.
It moves along a transverse groove 29 provided in a cutter backup 27 whose both ends are fixedly held by the lower ends of the cutter.

Similar to the tacking member 16, the film guide surface of the cutter backup 27 is provided with a vacuum suction hole 28 along the film width direction, and each company has a valve control so that it can be selectively activated depending on the film width. You may. It is also possible to use a piston-cylinder mechanism instead of a motor as the driving means and to rotate the cutter 24 and move it laterally using a binion rack mechanism.

Pressing roll 30 for pressing the film onto the panel 2
are provided in pairs above and below the conveyance path of the panel 2. At least one of the pair of crimping rolls 30, for example, the upper crimping roll 30, has bearing portions at both ends thereof held by guide rails provided on each of the left and right support members 5 so as to be slidable in the vertical direction. A piston-cylinder mechanism is installed. By the operation of this piston cylinder mechanism, the upper pressure roll presses the panel 2 and the film 6 conveyed between the upper and lower pressure rolls downward, and the panel 2 and the film 6 are pressed together.

As shown in FIG. 3, at a position adjacent to the front of the pressure roll 30, a film guide 29 for guiding the film extends in the transverse direction. As with the member 16 and the cutter backup 27, the guide surface of the film guide 29 is also provided with multiple rows of vacuum suction holes 31 along the width direction I of the film, so that the vacuum suction width can be changed depending on the film width. Valve control may also be used.

On the other hand, the entrance roller conveyor 3 is provided with a roller 32 for simply conveying the panel 2, and a roller 32' movable along the conveying direction of the panel 2, and bearings at both ends of the moving roller 32'. A claw 33 for moving the temporary attachment member 16 is provided in the section.

The entrance roller conveyor 3 is driven by a sprocket and chain 36 attached to each roller and a motor 38.

A support member 35 that supports the moving roller 32' and the claw 33
is slidable along a guide rail 35° provided parallel to the conveyance direction of the panel 2. Support member 35
is attached to a chain 37 that moves around the sprocket 40 by the power taken from the roller 32 via the clutch/brake 34, so that the moving roller 32' and pawl 33 are controlled by the clutch/brake 34. It is driven together with the support member 35. Alternatively, the power for driving the moving roller 32'' and the pawl 33 may be taken from the driving means of the pressure roll 30.

The laminator according to the invention operates as follows. The panel 2 is sent to the tacking station by the roller conveyor 3 on the entrance side. At this time, the tacking member 16 and cutter 24 held by the block member 15 are positioned at position A shown in FIG. 2 by the air cylinders 17 and 18.

Sensor 39 installed on the entrance roller conveyor 3 (Fig. 3)
detects the tip of the panel 2 and issues a signal, and this signal and the signal from the rotary encoder 41 that senses the transport distance of the panel 2 determine when the tip of the panel 2 reaches the entrance of the tacking station. air cylinder 1
7 and 18 are brought to zero, and at about the same time moving roller 32' and pawl 33 begin to move, tacking causes member 16 and cutter 24 to move at the same speed as the panel transport speed.

Almost at the same time as this movement, the tacking member 16 is moved downwardly toward the panel 2 by the air cylinder 20 while holding the leading end of the continuous film 6, and takes the position B (FIG. 2), and the film 6 Press the tip of the panel against the front end of the panel 2 to temporarily attach it. At this time, since the panel 2 and the tacking member 16 are moving at the same speed, the relative speed between them is zero. The time required to temporarily attach the film 6 to the panel 2 is about 1 to 3 seconds, and the distance corresponding to this required time (30 to 100 mm) is temporarily attached while the member 16 is pressed against the panel 2. Move and take position C.

Next, when the tacking member 16 reaches the position C in FIG. 2, it is raised to the position D by the air cylinder 20. At the same time, the moving roller 32' and the claw 33 are also stopped at position C. On the other hand, the panel 2 to which the leading end of the film 6 is temporarily attached continues to be conveyed as it is, and the film begins to be crimped by the crimping roll 30.

The temporary attachment member 16 that has risen to the D position is attached to the air cylinder 1.
7, the film suction surface is moved to a position E where the film suction surface of the cutter backup 27 is aligned with the film 6 suction surface. At the same time, the chain 13 (FIG. 3) is driven, and the entire block member 11 is moved away from the panel 2, whereby the tacking member 16 is moved away to the position F.

The film crimping work progresses as the panel 2 is transported, and when the sensor 39 detects the rear end of the panel 2, the chain 13 is driven by the signal, and the entire block member 11 is brought closer toward the panel 2, and at the same time the cutter 24
rotates and moves laterally relative to blocking members 11 and 15 to cut the film. At this time, the moving speed of the block member 11 is made to be substantially equal to the traveling speed of the film 6 before it is completely attached to the panel 2. Since the cutter 24 is attached to the block member 11 via the block member 15, the block member l
Move closer to panel 2 with l. Therefore, during this close movement, there is no substantial relative speed between the film 6 and the cutter 24 in the film running direction, and if the cutter 24 is moved in the lateral direction, that is, in the film width direction, the continuous film 6 is Cut horizontally into rectangular film sheets. The cutting position of the film 6 and thus the length of the film sheet corresponds to the point in time when the block member 11 starts its approaching movement. Sensor 39 is on panel 2
The length of the film sheet is adjusted to the length of the panel 2 by controlling and processing the signal from the sensor 39 so that the block member 11 starts moving closer after a certain period of time from when the rear end is sensed and the signal is issued. In this way, the film can be used without wasting it. The cutter 24 only needs to complete the cutting operation while the block member 11 is moving close to the block member 11.
The cutting speed can be set arbitrarily.

Even during the film cutting operation, the film crimping operation by the crimping roll 3o continues without interruption, and after the film is cut,
The film sheet is completely crimped onto the panel 2, and the tacking member 16 holds the leading edge of the film by suction in preparation for continuous film tacking to the subsequent panel.
From position E shown in FIG.
8, it is moved to position A and stands by. At this time, the moving roller 32' and the pawl 33 are also simultaneously pushed back to their initial positions (indicated by two-dot chain lines in FIG. 3).

The same operation is then repeated for subsequent panels.

In addition, in order to control the slack of the film during tacking, a tension roll 44 and an air cylinder 43 for vertically moving this roll 44 can be provided.

Vacuum suction control for the temporary attachment member 16, the cutter backup 27, and the film suction holes provided in the film guide 29 is performed as follows. In FIG. 2, while the tacking member 16 moves from A to B1 and C, all suction holes in the tacking member 16, cutter backup 27, and film guide 29 are in the suction state. Next, during temporary attachment, while the member 16 moves from C to E and F, the suction state is released in the suction holes of all the members. Then, the temporary attachment is continued with member 16 returning from F to E and D
While moving to SA, the suction holes of all members are in the suction state.

FIG. 4 shows another embodiment of the laminator according to the invention.

In this embodiment, when the member 16 is moved in the vertical direction, the cutter backup 27 is movable by the air cylinder 42 to the position indicated by the two-dot chain line, and the film guide 29' is moved from the moving path of the member 16 during the tack setting. It is placed in an outlying position. With such a configuration, the temporary attachment member 16 can be omitted from moving between positions DE in FIG. 2, and the only means for driving the block member 15 is the air cylinder 18'.

In the present invention, the cutter may be any known cutting tool other than a rotary round blade.

Further, other known drive means may be used instead of the piston cylinder mechanism or chain mechanism.

When attaching a film to both sides of a panel, each member of the laminator body is installed in pairs vertically symmetrically with respect to the panel conveyance path, but when attaching a film to only one side of a panel, it is necessary to install it on either side. good.

The vacuum suction holes provided in the tacking member, the cutter guide, and the film guide may be operated by separate vacuum generators, but one or two vacuum generators may be provided with a control valve. It is preferable to connect via .

(Effect of the invention) When attaching 1 t of film sheets to a panel according to the present invention, the tacking member for holding the leading edge of the continuous film and tacking it to the front end of the panel is Since they can move at the same speed, the relative speed between them can be zero. Therefore, tacking can be performed while the panels are being transported.

According to the invention, the cutter is movable at a speed substantially equal to the longitudinal speed of the continuous film, i.e.
Since the relative speed between the cutter and the continuous film can be set to zero, the work of cutting the continuous film into a film sheet of a predetermined length can be done during the film adhesion work without stopping the conveyance of the panel. Can be done.

As a result, according to the present invention, it is possible to perform the temporary attachment of a film to a panel, from the film attachment operation to the film cutting operation, without stopping the conveyance of the panel. Therefore, conventionally, film tacking requires the laminator's panel conveying device to be temporarily stopped for work, which limits the operating speed of the panel feeding conveyor or other panel feeding device connected to it. The present invention completely eliminates these limitations, dramatically improving the work efficiency of the entire production line including the laminator, and also eliminates the difficulty in controlling the laminator's panel conveyance device when it temporarily stops. be done.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of a laminator according to the present invention. FIG. 2 is a fragmentary side schematic view of a laminator showing the movement of tack members for detailed explanation of the present invention. FIG. 3 is a side view showing the detailed structure of the entrance-side roller conveyor and the laminator main body in one embodiment of the laminator according to the present invention. FIG. 4 is a fragmentary side schematic diagram showing another embodiment of the laminator according to the invention. l: Laminator main body 2: Panel 3: Entrance side roller conveyor (panel conveyor) 4: Outlet side roller conveyor (panel conveyor) 6: Continuous film 16: Temporary attachment member 24: Cutter 30
: Crimping roll Figure 2 Procedure amendment 1. Display of the case 1985 Patent Application No. 306380 2 Title of the invention Method for attaching a film sheet to a panel and laminator used therefor 3 Person making the amendment Relationship with the case Patent applicant Address Name Name Hakuto Co., Ltd. 1 person) 4. Agent address: Room 206, Shin-Otemachi Building, 2-2-1 Otemachi, Chiyoda-ku, Tokyo Power of attorney 2a Appropriate drawings

Claims (2)

[Claims] (1) A step of conveying a panel through a laminator main body, a step of tacking the leading end of a continuous film to the front end of the panel, and a step of continuously attaching the continuous film to the tacking panel. and in the step of continuously applying the film to the panel, a cutter is moved along the longitudinal direction of the film at a speed substantially equal to the longitudinal running speed of the film before application. tacking the continuous film includes the step of cutting the film according to the length of the panel using the cutter without interrupting the adhesion to form a film sheet; Attaching the film sheet to the panel is carried out by the tacking member while the held tacking member is moved at the same speed as the panel while the panel is being conveyed, without interrupting the conveyance of the panel. How to do it. (2) A laminator for attaching a film sheet cut from a continuous film to a panel, including a laminator body and a conveying device for conveying the panel through the laminator body, and further comprising a laminator body that a tacking member for tacking the leading edge of the film to the front end of the panel, the tacking member being capable of holding the leading edge of the continuous film and movable at the same speed as the conveyance speed of the panel; a pair of upper and lower pressure rolls for adhering the continuous film, the tip of which is temporarily attached to the front end of the panel, to the panel; and a pair of upper and lower pressure rolls for adhering the continuous film to the panel; A laminator comprising a cutter for forming sheets, the cutter being movable at a speed substantially equal to the longitudinal running speed of the continuous film before deposition.