JP2000289110A - Laminator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminator using a pressure device having a structure wherein the driving force of a drive motor is transmitted through an oscillating link or an eccentric cam. SOLUTION: In a laminator, a pressure device 30 has a slide core 52 sliding through a pair of crank links provided to both ends of a rotary arm by a drive motor 52 and the lift core 51 arranged in opposed relation to the slide core 52 an a mechanism for rasing and lowering one of the opposedly arranged plates 3 of a processing station 6 wherein an oscillating link 22 is connected to both cores at its ends by hinges and the moving quantity of the crank links is converted to the rising and falling operation of the socillating link 22 to bond a material film to a base material under heating and pressure. In another modified enbodiment, an eccentric cam is used in place of the oscillating link.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminator for heating and pressing a material film having an adhesive surface exposed on a substrate by using a heating device and a pressure device, and more particularly to a mold opening / closing mechanism of the pressure device.

[0002]

2. Description of the Related Art Conventionally, in order to integrate two stage materials, these stage materials are carried into a processing station, and are then moved up and down by a press platen (a pair of plates) facing each other. There is a laminator device or a molding press device for heating and pressing. In such an apparatus, in the case of manufacturing a printed wiring base material, in order to protect an electric circuit on the base material from etching, plating, soldering, etc., a support film and a film-like photoresist forming layer as a photosensitive layer are formed. An operation of thermocompression bonding to the substrate surface is performed. In addition, a work such as bonding a decorative sheet such as a transfer sheet or a sticking sheet to the outer surface of the forming base material to form a laminate is also performed.

[0003] The film used for the printed wiring board or the like is composed of an upper material film having an adhesive surface of a photoresist forming layer applied on one surface side and a lower protective film for covering the adhesive surface. I have. Therefore, in order to bond a film-like photoresist forming layer on a substrate using a laminator device, first, a protective film is separated from the film sent to the laminator device, and a photoresist is formed on the remaining material film. The forming layer is exposed, and then the upper material film is fed into a forming press. In this way, the photoresist forming layer has adhesiveness by being heated in the vacuum chamber, and is pressed on the circuit substrate to laminate the film.

A laminating apparatus used for such a purpose is provided with, for example, a press platen opposed to an upper side and a lower side as disclosed in JP-A-63-295218. A pressurizing device is connected to the heating device and moves the lower press platen relative to the upper press platen by a hydraulic ram structure driving device. Also, JP-A-63-4284
No. 0 also discloses a pressurizing device for raising and lowering the movable platen.

Conventionally, these pressurizing devices use a hydraulic device as a drive source, which makes it difficult to maintain and control the hydraulic pressure of the pressurizing device, and requires a large number of hydraulic-related devices required on a hydraulic circuit. However, there is a problem that the configuration becomes complicated due to the use of the above, and the cost is increased.

[0006]

In a conventional apparatus, a toggle mechanism is provided as a mold opening / closing mechanism of a laminator apparatus, and there is an apparatus in which a link thereof is pressed by using a piston cylinder apparatus. However, if the open / close distance of the toggle is long and a large surface plate is used as the lower plate, the toggle mechanism must be rugged and a large amount of force is required to raise and lower the lower plate. There is also a problem that the hydraulic device becomes large.

In view of such circumstances, the present invention uses a pressurizing device having a structure in which the driving force of a driving motor is transmitted via an oscillating link or an eccentric cam in order to solve the conventional disadvantages. It is intended to provide a laminator device.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention has the structure described in each claim. Claim 1
According to the configuration, on the processing station where the base material and the material film are conveyed in parallel between the pair of plates, the material film whose adhesive surface is exposed to the base material is heated using a heating device and a pressing device. In the laminator device for crimping, the pressurizing device includes a drive motor, a pair of crank links each having one end connected to both ends of an arm rotated by the motor, and the crank connected to the other end of the crank link. A slide core that slides according to the amount of movement of the link, and is disposed opposite to the slide core, and is fixed to one of the pair of plates and can move integrally with this plate in a direction orthogonal to the direction of movement of the slide core. A lifting core, connecting the slide core and the lifting core, and pressing the lifting core according to a displacement amount of the slide core. Is characterized in that it comprises a swing link that performs raising 倒動 operation of fit.

According to a third aspect of the present invention, there is provided a pressurizing device comprising: a drive motor; at least one pair of transmission means for transmitting a rotational force of the drive motor; a tension means for adjusting a degree of tension of the transmission means; It is characterized by having at least one eccentric cam rotating via the transmission means.

With such a configuration, the present invention transmits the driving force to the oscillating link or the eccentric cam only by the driving motor instead of the hydraulic circuit, and the movement of these links or the cam causes one plate to move to the other. A pressurizing device for raising and lowering (approaching / separating) the plate is configured. Therefore, the amount of movement of one plate is determined by the amount of displacement of the oscillating link or the eccentric cam, and the stroke can be made shorter than before. Further, since the pressurizing device is constituted by a mechanism of a drive motor and a swing link or an eccentric cam, it has a space-saving structure, and as a result, is a maintenance-free mechanism. Further, in the pressing device, at the positions of the open end and the closed end, the moving speed of the plate moving up and down by the movement of the link or the cam is slowed down, so that the laminating operation of the material film on the base material can be performed reliably and safely.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a laminator device 1 according to the present invention, FIG. 2 is a top view showing a part thereof, and FIG. 3 is a side view. In FIG. 1, a processing station 6 in which a base material 4 and a material film 5 are transported in parallel between a pair of plates 2 and 3 is placed at the center of the apparatus. On the left and right sides of the processing station, a delivery section 8 on the loading side and a delivery section 9 on the delivery side are arranged. Sending part 8,
In 9, a transport means (not shown) for transporting the substrate is arranged on the upper surface.

In the laminator apparatus of the preferred embodiment illustrated here, the material film 5 is sent from the delivery side 8 on the loading side to the upper surface side and the lower surface side of the base material 4 respectively. For this reason, a film feeding device 10 for supplying the material film 5 to the lower side of the base material 4 is provided on the right side surface of the feeding portion 8. A film feeding device 11 for supplying the material film 5 is provided.

The two film feeding devices 10 and 11 take up the protective film 5a from the fed material film 5 via another pulley 12, and the material film 5b with the exposed adhesive layer is processed via the pulley 14 at the processing station. 6 above or below the substrate 4.

The processing station 6 has a pair of plates 2 and 3 which are heated by a heating device, and the lower plate 3 constitutes a movable plate which moves up and down with respect to the upper plate 2. The lower plate 3 receives a driving force from a pressing device which is a characteristic part of the present invention described later.

Film winding devices 15, 16 for removing only the uppermost support film 5c from the base material 4 on which the material film 5b is laminated, between the processing station 6 and the delivery section 9 on the discharge side. Is provided.

The upper plate 2 and the lower plate 3 are arranged to face each other, and although not shown here, each has a configuration in which a platen, a heater, and a heat insulating material are laminated, similarly to a conventionally known one. I have. FIG. 2 is a partial schematic view of the processing station 6 and the delivery section 8 on the loading side shown in FIG. 1 as viewed from above, and shows a state where a product A (base material and film) is supplied. FIG. 3 is a side view of FIG. 1, and the upper plate 2 is configured to be able to be drawn out from the processing station 6 to the side along the guide rail 20 as indicated by an imaginary line P. The upper plate 2 can be freely rotated around a central axis 21 to clean the lower surface thereof.

FIGS. 4 and 5 are diagrams showing a schematic configuration of a pressurizing device according to the present invention, and FIG.
FIG. 4B is a front view showing a pressurizing device using the same, and FIG. 4B is a bottom view of the pressurizing device with the bottom plate removed. FIG. 5 (a)
FIG. 5B is a front view illustrating a pressing mechanism using the eccentric cam 24, and FIG. 5B is a bottom view illustrating the pressing mechanism with the bottom plate removed.

In FIG. 4A, the processing station 6
The pressurizing mechanism including the upper plate 2, the lower plate 3, the oscillating link 22, and a bottom plate 27 to which a drive motor 25 for lifting and lowering the lower plate are mounted in the frame 7 from above. Each of the upper plate 2 and the lower plate 3 is provided with three hot plate terminals 28 connected to an external power supply (not shown), and each plate is heated by a heater in the plate connected through this terminal. The surface can be heated to a predetermined temperature.

The pressurizing device 30 includes an upper block 31 fixed to the lower plate 3 as is apparent from FIG.
And a lower block 32 supported on an intermediate plate 28 connected to a frame 7 to which a plate member 7a standing upright from the bottom plate 27 is fixed, and a drive motor 2 provided at the center of the bottom plate 27.
5 is provided. Upper block 31 and lower block 3
As shown in FIG. 4 (b), 2 is disposed opposite to both side portions 7 b of the frame along the transport direction S of the base material, and is provided by a transmission means 29 via a drive shaft 26 from a drive motor 25. The swing link 22 can be moved up and down in synchronization with each other. The swing link 22 is connected to the drive motor 2.
At least two of them are arranged symmetrically with respect to the central axis 5.

The swing link 22 is connected between a lifting core 51 of the upper block 31 and a slide core 52 of the lower block 32, as shown in FIG. A rotary arm 54 is connected to a rotary shaft 53 that is drivingly connected to the drive motor 25 via a transmission means, and one end of a pair of crank links 56 is hinged to an end of the arm. The other end of the crank link 56 is hinged to one end of the slide core 52.

Thus, the rotational force of the drive motor 25 is
The light is transmitted from the rotating arm 54 to the crank link 56, and the crank motion of the crank link 56 causes the slide core 52 to reciprocate left and right. When the swing link 22 on the side core side follows this movement and moves laterally, the swing link 22 is moved up and down to move the lower plate 3 up and down.

A brake device 34 for reversing the upper plate 2 is attached to the upper portion of the side wall of the frame 7 from the outside, and a sliding device for pulling out the upper plate 2 is provided at a lower portion of the side wall. The motor 35 is attached from the inside. Further, the lower plate 3 is provided with a frame 7
Positioning is performed by a ball spline 36 (see FIG. 3 or FIG. 6) so as to be able to move up and down in the vertical direction without swinging inside. This positioning is performed by a structure in which a pin protruding from the lower plate 3 fits into a concave portion provided in a nut portion of the ball spline 36, whereby the lower plate 3
In the left, right, front and rear directions.

FIG. 5A shows a schematic configuration of an eccentric cam mechanism which is another embodiment of the pressurizing device 30 according to the present invention. The eccentric cam mechanism, as shown in FIG.
The eccentric cams 24, which are arranged opposite to each other on both sides 7b of the frame body along the transport direction S of the base material 4 and are provided at positions facing each other, are connected via a cam shaft 24a.

One eccentric cam 24 is provided on each of the cam assemblies 42. The cam assemblies 42 are connected to the lower plate 3 via connecting members 43. At least two are provided symmetrically. When the eccentric cam 24 rotates, the outer housing reciprocates right and left and up and down. Thereby, the lower plate 3 is moved up and down.

The drive motor 25 attached to the bottom plate 27 of the frame 7 has a pair of drive shafts 44 and 45, each of which is here connected via a transmission member composed of a sprocket 46 and a chain 47. The cam assemblies 42 of the main eccentric cams 48 arranged on the left and right are connected to each other. Further, these cam assemblies 42 are respectively connected to the cam assemblies 42 of the sub eccentric cams 49 arranged in parallel and the chain 47. Drive-coupled. Each of the chains 47 is adjusted by the tension device 50 so as to maintain an appropriate tension.

As described above, the pressurizing device using the eccentric cam 24 includes the drive motor 25, the cam assembly 42 having the eccentric cam 24, the transmission members such as the sprocket 46 and the chain 47, and the tension device 50. I have.

FIG. 6 is a side view similar to FIG. 3, and illustrates the movement of the pull-out structure of the upper plate 3 in the pressing device using the eccentric cam mechanism. Also in this case, the upper plate 2 and the lower plate 3 are arranged to face each other,
The upper plate 2 allows the working station 6 to be drawn along the guide rails 20 from the side, as indicated by the imaginary line P. The pulled-out upper plate 2 can freely rotate around the central axis 21 to clean the lower surface side. Note that the ball spline 36 described in FIG. 3 is also provided in the processing station shown in FIG. The ball spline 36 can prevent the lower plate 3 from rotating when the cam assembly 42 moves up and down and right and left due to the movement of the eccentric cam 24. Also, a predetermined position can be held by the ball spline.

FIG. 7 is a view for explaining the operation of the pressurizing mechanism by the above-mentioned swinging link 22. FIG. 8 shows a sectional structure of a core portion connected to the swinging link 22. Rotary shaft 5 connected to drive motor 25 via a transmission mechanism
A rotating arm 54 chamfered in a diamond shape is fixed to 3, and one end of a C-shaped crank link 56 is rotatably attached to each end of the arm 54. The other end of each crank link 56 has a slide core 5 that slides according to the movement amount D of the crank link 56.
2 are hinged.

When the arm 54 rotates, one end of a crank link 56 connected to one end of the arm 54
, The slide core 52 moves forward and backward in the lateral direction. In this case, due to the crank motion, the movement of the crank link 56 is slow at the start end and the end, and the movement speed is high in the middle stroke. Therefore, the speed of the slide core 52 also decreases at the start end and the end according to the lateral movement amount of the crank link 56, so that the lower plate 3 operates at a low speed at the start end and the end of the vertical movement.

In FIG. 8, the lifting core 51 and the slide core 52 are sandwiched between the swing links 22 located on the left and right. A needle bearing 57 is fitted into each of the inner holes of the elevating core 51 and the slide core 52, and a flanged pin 58 penetrating the pair of left and right swing links 22 is fitted into this bearing. The rotatably inserted pin is fixed on one side of the swing link 22 with a nut, a split pin, an E-ring, or the like, and the swing link 22 swings with respect to the elevating core 51 and the slide core 52. Mounted as possible. Reference numeral 59 denotes a flat gauge, which is a kind of bearing for smoothing the sliding of the sliding core 52.

As a result, the swinging link 22 is erected by the lateral movement of the slide core 52.
The slide core 52 moves integrally with the lower plate 3 in a direction orthogonal to the movement direction of the slide core 52, that is, in the vertical direction here. The swing link 22 has a slowdown operation in addition to the lateral movement according to the movement of the crank link 56, and the moving speed becomes low at the beginning and end of the lifting stroke of the lower plate 3. Thus, the lower plate 3 moves away from the upper plate 2 by the raising and lowering operation of the swing link 22, and the base material 4 and the material film 5b are inserted between the upper plate 2 and the lower plate 3. Then, the material film 5b can be laminated on the base material 4.

FIG. 9 shows a chain 47 of transmission means connected to the cam assembly 42 of the eccentric cam 24 and a tensioning device 50 for imparting tension to the chain. FIG. 10 is a sectional view showing the structure of the eccentric cam assembly 42. One tension device 50 is provided for each chain 47, and is fixed to the outside of the side wall 7b of the frame (see FIG. 4A). The tension device 50 includes a bolt 66 fitted in a long hole 64 provided in a main body 63 thereof.
Is loosened, the sprocket 67 incorporated in one end of the main body is pressed against the chain 47 to give the chain a degree of tension, and is fixed to the frame 7 by tightening the bolt 66.

The eccentric cam 24 gives an eccentric amount E to the rotation of the cam shaft 24a, and is disposed inside the side wall 7b of the frame, and the cam shaft 68 extends outside the side wall.
At the tip of the cam shaft 68, a sprocket 69 containing a friction lock (fastening part) 70 is supported, and a chain 47 is attached to the sprocket.
A flanged sleeve 72 for fixing the needle bearing 71 is fitted into the through hole in the side wall 7b. The eccentric cam 24 is supported by a roller bearing 73, and a bracket housing 74 is arranged outside the bearing,
A pair of stop flanges 75 for fixing the bearing 73 with both sides sandwiched between them are provided.

The cam assembly 42 having the eccentric cam 24 includes:
A slide plate 76 is arranged on the bracket housing 74, and a flat gauge 78 is arranged between the slide plate 76 and a block 77 attached to the bottom of the lower plate 3. Flat gauge 78
Improves the sliding of the slide plate 76 when the housing portion moves in the left, right, up and down directions by the rotation of the eccentric cam shaft 68. Reference numeral 80 denotes a bearing 71,
73 are three collars for positioning 73 at a fixed position.

[0035]

As is apparent from the above description,
According to the present invention, since the pressurizing device of the laminator device is constituted by a mechanism of an oscillating link or an eccentric cam using a drive motor instead of a hydraulic drive, the structure is simplified and a compact design is achieved. In addition, the amount of movement of the swing link and the eccentric cam can be reduced, so that the molding cycle can be shortened and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an entire laminator device according to the present invention.

FIG. 2 is a partial schematic top view showing a transfer position of a product on a processing station viewed from above in the apparatus of FIG. 1;

FIG. 3 is a side view showing a drawer structure of an upper plate in the processing station of FIG. 1;

FIG. 4 (a) is a schematic front view showing a structure of a heating device when a swing link showing a main part according to the present invention is used,
(b) is a bottom view seen from below.

FIG. 5 (a) is a schematic front view showing a structure of a heating device when an eccentric cam showing a main part according to the present invention is used,
(b) is a bottom view seen from below.

FIG. 6 is a side view showing a drawer structure of the upper plate similar to FIG. 3 in the case of an eccentric cam structure.

FIG. 7 is a diagram for explaining an operation of a pressurizing device using a swing link.

FIG. 8 is a sectional view of a main part showing an internal structure of the swing link in FIG. 7;

FIG. 9 is an enlarged view showing a main part of a pressurizing device using an eccentric cam.

FIG. 10 is a sectional view of a main part showing an internal structure of the eccentric cam of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminator apparatus 2 Upper plate 3 Lower plate 4 Base material 5 Material film 6 Processing station 7 Frame 22 Swing link 24 Eccentric cam 24a Cam shaft 25 Drive motor 26 Drive shaft 30 Pressurizing device 42 Cam assembly 46 Sprocket 47 Chain Reference Signs List 50 Tension device 51 Elevating core 52 Slide core 53 Rotating shaft 54 Rotating arm 56 Crank link

Claims (4)

[Claims] 1. A heating station and a pressing apparatus are used to heat-press the material film whose adhesive surface is exposed to the base material on a processing station in which the base material and the material film are conveyed in parallel between a pair of plates. The pressurizing device comprises: a driving motor; a pair of crank links each having one end connected to both ends of an arm rotated by the motor; and a crank link connected to the other end of the crank link. A slide core that slides in accordance with the amount of movement of the slide core, and is arranged to face the slide core, and is fixed to one of the pair of plates and can move integrally with the plate in a direction orthogonal to the movement direction of the slide core An elevating core, connecting the slide core and the elevating core, and pressing the elevating core according to a displacement amount of the slide core Laminator apparatus characterized by comprising, a swing link that performs raising 倒動 operation of fit. 2. The laminator device according to claim 1, wherein at least two swing links are disposed symmetrically with respect to the center axis of the drive motor. 3. A heating and pressurizing device heat-presses the material film having an adhesive surface exposed on the substrate on a processing station where the substrate and the material film are conveyed in parallel between a pair of plates. In the laminator device, the pressurizing device includes: a driving motor; at least a pair of transmission means for transmitting the rotational force thereof; tension means for adjusting the degree of tension of the transmission means; and at least a rotation via the transmission means. A laminator device, comprising: one eccentric cam; 4. An eccentric cam is provided at least two symmetrically with respect to the drive motor in the left-right direction, and the main eccentric cam and the sub-eccentric cam are respectively driven synchronously via transmission means. The laminator device according to claim 3.