JPH036908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laminator for applying film sheets cut from a continuous film to panels.

For example, laminators have been known in which a continuous photosensitive dry film is cut into sheets and then adhered onto a panel such as a glass epoxy copper clad laminate using a pressure roll. In order to eliminate the trouble of cutting the film during finishing work and to use the film efficiently without wasting it, it is desirable to cut the film into sheets according to the size of the panel while attaching the film. Furthermore, in order to obtain a product with uniform high quality, it is necessary to cut the film without stopping the rotation of the pressure roll during film deposition. Such a laminator is disclosed in Japanese Patent Application No. 58-82241. Its outline is shown in Figures 1 to 3 (the lower part is omitted because the structure is almost vertically symmetrical).

The laminator 1 has side plate-shaped support members 2 (only one shown) on both sides, and a supply roll 4 on which a continuous film 3 is wound is mounted between the support members 2. A block plate 7 of a temporary attachment block member 6 is attached to a guide rail 5 fixed to each support member 2 so as to be vertically slidable. A temporary attachment member 8 of the temporary attachment block member 6 is provided between the block plates 7. The temporary attachment member 8 is supported on both sides by the other end of a piston cylinder mechanism 9 whose one end is attached to each block plate 7, and when the piston cylinder mechanism 9 operates, a cam provided at the bottom of each block plate 7 is attached. It is movable along the groove 10. On the other hand, since each block plate 7 is connected to an endless chain 12 stretched around a sprocket 11 provided on each support member 2, the entire temporary attachment block member 6 is attached to the laminator 1 by the operation of the chain 12. It is possible to move toward and away from the continuous film tacking station 13. The temporary attachment member 8 is
The film 3 can be guided while being attracted by the vacuum suction holes 14. During operation,
The panel 15 transported by a conveying device such as a roller conveyor is stopped when its front end reaches the continuous film tacking station 13. Temporary attachment member 8 holding the film 3 by suction
is lowered and the leading edge of film 3 is placed on panel 1.
5 (see Figure 2). When the temporary attachment is completed, the temporary attachment member 8 moves to the rear where the suction action is stopped. At the same time, the chain 12 is driven and the entire tacking block member 6 is moved away from the continuous film tacking station 13. (See FIG. 3) The panel conveying device is operated again, and the film 3 is pressed onto the panel 15 between a pair of rotating pressing rolls 16 supported at both ends by the support member 2. In order to cut the continuous film 3 into film sheets of a size matching the length of the panel 15, the chain 12 is driven at a predetermined point in response to a signal from a sensor etc. that detects the rear end of the panel 15. The entire application block member 6 is moved toward the continuous film tacking station 13 at a speed that is the same as the travel speed of the film 3, that is, the rotational circumferential speed of the pressure roll 16. During the approaching movement, the cutter 17 attached to the lower end of the block plate 7 moves the guide bar 1 laterally with respect to the temporary attachment block member 6.
8 to cut the film 3.
Before and after cutting the film, the pressure roll 16 continues to rotate at a constant speed without interruption.

In this way, in order to accurately cut the continuous film 3 into a film sheet of a predetermined length that matches the size of the panel 15, the tacking block member 6 must be cut at the speed of the film 3, that is, the speed of the pressure roll 16. It is necessary to move it close to the continuous film tacking station 13 at a speed that is as great as the rotational circumferential speed. This is because if the magnitudes of the two speeds do not match, the cut surface of the film 3 will become oblique.

Conventionally, the rotation of the pressure roll 16 and the movement of the tacking block member 6 have been performed separately by dedicated drive devices. It goes without saying that the compression roll 16 must always rotate at a constant speed. However, when the tacking block member 6 is moved close to the continuous film tacking station 13 during film cutting, the moving speed of the tacking block member 6 needs to match the rotational peripheral speed of the pressure roll 16 as described above. In other cases, regardless of the rotational peripheral speed of the pressure roll 16,
In fact, it is desirable to move quickly from the viewpoint of work efficiency. However, the conventional drive device dedicated to temporarily attaching block members is a normal type that provides only a single speed, and if it were to be able to provide different speeds as necessary, it would be complicated. This makes the mechanism difficult to control. Furthermore, if a drive device for quickly moving the temporary attachment block member 6 is additionally provided, there will be a total of three drive devices, and the control will be complicated.

Therefore, an object of the present invention is to provide two types of moving speeds to the tack block member, that is, the same rotational peripheral speed as the pressure roll, without using a drive device with a complicated mechanism or adding a new drive device. The object of the present invention is to provide a laminator that can easily provide large speeds and even higher speeds.

The features of the laminator according to the present invention are that the crimping roll is rotated by receiving driving force from a motor, which is one drive device, and the tacking block member is controlled to move close to the continuous film tacking station around the rotational period of the crimping roll. a motion transmission mechanism is provided for imparting a movement of the tacking block member away from the continuous film tacking station with respect to the continuous film tacking station; The transmission mechanism has a clutch for releasing the transmission of motion to the tacking block member.

Both ends of the temporary attachment block member are suspended and supported by a pair of left and right endless chains stretched across sprockets provided on both sides of the rotating shaft in the lateral direction, and the motion transmission mechanism rotates the sprockets. In this way, the tacking block member may be provided with an approximation movement. Also,
It may be moved using a ball screw.

The motion transmission mechanism may include an endless chain stretched between the drive shaft of the motor, the rotating shaft, and the axis of the pressure roll. Also,
A suitable gear arrangement may be used instead of such a chain.

The driving device for providing separation movement to the tacking block member may be a piston-cylinder mechanism such as an air cylinder, and one end of the piston-cylinder mechanism is connected to the endless chain that suspends and supports the tacking block member. It may be installed on the It is also possible to use other types of drive devices or to attach one end of the drive device directly to the temporary attachment block member.

Examples of the present invention will be described in detail below. FIG. 4 is a schematic diagram showing an embodiment of the present invention, and non-essential parts are omitted or simplified, but the overall structure and operation excluding the drive device, motion transmission mechanism, and rotating shaft are as follows. It should be understood that this is similar to that shown in FIGS. 1-3.

In FIG. 4, a pair of upper and lower temporary attachment block members 19 and 20 are connected to sprockets 22 and 20 provided on both sides of a rotating shaft 21 extending laterally.
Both ends are suspended and supported by a pair of left and right endless chains 24 and 25, which are respectively stretched from 23 to 23. The lower sprockets 26, 27 may also be connected to each other by a rotating shaft, or may be independent as shown. The rotating shaft 21 and the lower sprockets 26, 27 are rotatably mounted on side plate-like support members (not shown) provided on both sides. In FIG. 4, for the sake of simplification, the temporary attachment block members 19 and 20 are shown as if they consist only of temporary attachment members, but in reality they include the block plates etc. described in connection with FIGS. 1 to 3. The block plates are attached to the chains 24, 25 via connecting members 28, 29. Since the upper temporary attachment block member 19 is attached to the chain on the near side as seen in FIG. 4, and the lower block member 20 is attached to the chain on the opposite side, when the chains 24 and 25 are operated, The upper and lower temporary attachment block members 19 and 20 move toward or away from each other.

The extending left end portion of the rotating shaft 21 has a sprocket 30, and a sprocket 22 and a sprocket 3 are connected to each other.
A clutch 31 is provided between the terminal and the terminal 0. Due to the operation of this clutch 31, the sprocket 30
rotation is selectively transmitted to sprocket 22.

An endless chain 36 is stretched between the sprocket 30, the sprocket 33 provided on the shaft of the pressure roll 32, and the sprocket 35 provided on the drive shaft of the motor 34. Therefore, when the clutch 31 is in the connected state, the drive of the motor 34 causes the pressure roll 32 to rotate and the rotary shaft 21 to rotate as well, so that the tacking block members 19 and 20 move closer to each other. A transmission device (not shown) is provided at an appropriate location so that the moving speed of the temporary attachment block members 19 and 20 is the same as the moving speed of the pressure roll 32. Motor 34 only rotates crimp roll 32 when clutch 31 is in the released state.

Apart from the motor 34, the temporary attachment block member 1
A drive device is provided for moving the parts 9 and 20 apart. In the embodiment shown in FIG. 4, this drive device is a piston cylinder mechanism 37. The lower end of the piston cylinder mechanism 37 is attached to a fixed member, and the upper end is connected to the chain 24 via a connecting member 38.
installed on. Therefore, clutch 31
If the piston cylinder mechanism 37 is operated when the press roll 32 is in the released state, the tacking block members 19, 20 are activated regardless of the rotational speed of the pressure roll 32.
can be quickly moved away.

At the right end of the rotating shaft 21, there is a chain 2.
4. Brake 3 to take the refresh of 25
9 may be provided.

The operation of the laminator according to the invention will now be described. The basic operation is similar to the conventional laminator described above, but the driving method is different.

Normally, the clutch 31 is in a released state. When the panel carried by the conveyance device positions its front end at the continuous film tacking station and stops, the tacking member of the tacking block member 6 is moved toward the panel, and the continuous film is tacking at the continuous film tacking station. Temporarily attach the tip of the panel to the front edge of the panel. When the film tacking by the tacking member is completed, the piston cylinder mechanism 37 is activated, and the tacking block members 19, 20 are separated from the continuous film tacking station at a relatively high speed. The panel to which the film has been tacked is moved by a conveying device, and the pressure roll 3 rotates at a constant speed under the driving force of a motor 34.
The film is crimped between the two.

By receiving a signal to start a series of film cutting operations, the piston cylinder device 37
is assumed to be in an inoperative state where the pressure is zero, and clutch 3
1 is connected. Then, temporary attachment block member 1
9 and 20 move toward the continuous film tacking station at a speed that is the same as the rotational circumferential speed of the pressure roll 32. During this close movement, the cutter moves laterally to cut the film into a film sheet of a predetermined size. After cutting the film, when the tack blocking members 19 and 20 are brought close to a predetermined position, the clutch 31 is released and the tack blocking members 19 and 20 are stopped. Thereafter, the press roll 32 continues to rotate, completely presses the film sheet onto the panel, and waits for the next panel. When the next panel reaches the continuous film tacking station, the same operation is repeated starting with film tacking.

As described above, the laminator according to the present invention does not require the use of a drive device with a complicated mechanism or the addition of a new drive device, and the laminator has the same rotational circumferential speed as the pressure roll on the tack block member. speeds and higher speeds can be easily provided as required.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of a conventional laminator, with some parts omitted. Figures 2 and 3
The figure is a schematic side view for explaining the operation of the laminator, with some parts omitted. FIG. 4 is a perspective view showing an embodiment of the laminator according to the present invention, with some parts omitted and simplified. 19, 20...temporary attachment block member, 21...
Rotating shaft, 22, 23... Sprocket of rotating shaft, 24, 25... Endless chain, 31
...Clutch, 34...Motor, 36...Endless chain, 37...Driving device (piston cylinder mechanism).

Claims (1)

[Scope of Claims] 1. A laminator for attaching a film sheet cut from a continuous film to a panel, which: guides the continuous film while adsorbing it, and attaches the continuous film to a continuous film tacking station of the laminator. a tacking member for tacking the tip of the continuous film to the front end of the panel, the tacking block member being movable toward and away from the continuous film tacking station; a pair of upper and lower pressure rolls for continuously adhering the continuous film to the panel; a pair of upper and lower pressure rolls for forming the film sheet by cutting the continuous film during the film adhesion process using the pressure rolls; a cutter attached to the tack block member so as to be movable laterally relative to the tack block member; The blocking member is provided with a motion transmission mechanism for imparting the approaching movement at the same speed as the rotational circumferential speed of the pressure roll, and a drive device for imparting the separating movement to the tacking block member, A laminator characterized in that the motion transmission mechanism has a clutch for making it possible to release the transmission of motion to the tacking block member. 2. Both ends of the temporary attachment block member are suspended and supported by a pair of left and right endless chains stretched across sprockets provided on both sides of a rotating shaft extending in the lateral direction, and the motion transmission mechanism supports the sprockets. Claim 1, characterized in that the approaching movement is imparted to the tacking block member by rotating it.
The laminator described in section. 3. The laminator according to claim 2, wherein the motion transmission mechanism includes an endless chain stretched between the drive shaft of the motor, the rotary shaft, and the axis of the pressure roll. . 4. The laminator according to any one of claims 1 to 3, wherein the drive device includes a piston cylinder mechanism. 5. The driving device includes a piston cylinder mechanism, and one end of the piston cylinder mechanism is attached to the endless chain that suspends and supports the temporary attachment block member. The laminator according to item 3.