JP2002347116A - Vacuum hot press bonding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum hot press bonding device which is simple in construction, and can cool a work with cooling water. SOLUTION: A glasses G1, G2 and a design film F are laminated to constitute the work W. A vacuum member 12 to press-bond the work W and a heater 14 to heat the work W are separately constituted. After heating the work W with the heater 14 has been completed, an opening cover is moved to an opening position while maintaining the work in the press-bonding state with the vacuum member 12, the heater 14 can be retreated from the top face of the vacuum member 12. A cooling water receiving member 1 is formed on the top surface of the vacuum member 12 with a water proof sheet 25 and an edge member 26, so that the work W can be cooled through the water proof sheet 25 by the cooling water using the cooling water receiving member. In this way, the work W can be cooled by the simple constitution provided with the cooling water receiving member on the top face of the water proof sheet 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum thermocompressor used for, for example, sandwiching a film between glass and glass or between a glass and a metal plate, pressing the film, and bonding by heating.

[0002]

2. Description of the Related Art There is known a vacuum thermocompressor for bonding a film by sandwiching a film between the glasses. This vacuum thermocompression device has a compression portion and a heating portion. Glass,
A special adhesive, a film, a special adhesive, and a glass are sequentially laminated, and these are pressed in a thickness direction by a pressing part, and the pressed part is maintained and heated by a heating part to melt the adhesive. Cool to solidify the adhesive. Thereby, a laminated glass can be manufactured by laminating two glasses and a film. Such laminated glass is used as shatterproof glass, for example, for window glasses of passenger cars and window glasses for houses.

[0003] On the other hand, when a design film (for example, a white film with a picture) is used as the above-mentioned film, a decorative product called crystal art can be produced. When one of the two glasses is replaced with a metal plate, a so-called metal art, which is also a decorative product, can be manufactured.

[0004]

The cooling in the vacuum thermocompressor described above is generally performed by natural cooling (air cooling system). One of the reasons is that, for example, when a water cooling system is adopted, a special device for cooling is required, and the configuration of the vacuum thermocompression device becomes complicated and the size thereof is increased accordingly.

However, according to the air cooling method, there is a problem that, for example, the production of crystal art requires a lot of man-hours due to low cooling efficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum thermocompression bonding device which has a simple structure while using a water cooling system having high cooling efficiency.

[0007]

According to a first aspect of the present invention, there is provided a vacuum thermocompression-bonding device for compressing and heating at least two thin objects to be processed in a stacked state, wherein the objects to be processed are stacked. Supporting means for supporting the object from below, and covering the object to be processed on the supporting means from above,
The air in the sealed space formed between the supporting means is evacuated, and the suction means for sandwiching the object to be processed between the supporting means and the supporting means can be freely opened and closed.
An opening / closing unit that takes a closed position covering the support unit and an open position that opens the support unit, and the suction unit is attached to the open / close unit and the open / close unit is disposed in the closed position; Heating means for contacting the upper surface of the means and heating the object to be processed via the suction means, wherein the suction means is configured to be detachable from the support means, and on the upper surface of the suction means. The cooling water receiver is formed.

According to the first aspect of the present invention, the structure for pressing the object to be processed and the structure for heating are different from each other.
The opening / closing means can be moved to the open position and the heating means can be retracted from the upper surface of the suction means while maintaining the pressure of the object to be processed by the suction means. Since the cooling water receiver is formed on the upper surface of the adsorption means, the object to be treated can be cooled by the cooling water using the cooling water receiver via the adsorption means. The cooling efficiency can be increased as compared with the conventional air cooling system (natural cooling). In addition, a water cooling system can be realized with a simple configuration in which a cooling water receiver is provided on the upper surface of the adsorption means.

According to a second aspect of the present invention, in the vacuum thermocompression bonding apparatus according to the first aspect, the suction means covers the object to be processed on the support means from above and is provided between the suction means and the support means. A flexible waterproof sheet forming the sealed space,
A bank-shaped edge member projecting upward from a periphery of the waterproof sheet to prevent leakage of cooling water on the waterproof sheet,
The cooling water receiver.

According to the second aspect of the present invention, the cooling water receiver can be realized with a simple structure in which a bank-like edge member is provided on the periphery of the flexible waterproof sheet. Note that the waterproof sheet is also used as a member for forming a sealed space between the support means and the object to be treated sandwiched between the waterproof sheet and the support means. It is also used as a part of a member for sandwiching an object to be processed. In other words, both the waterproof sheet and the edge member, which are components of the cooling water receiver, are not dedicated members for cooling with the cooling water, but also function as suction means for pressing the object to be treated. That is, no special (exclusive) configuration for using the cooling water is provided. Therefore, although the cooling water is used, the structure is not particularly complicated.

According to a third aspect of the present invention, in the vacuum thermocompression bonding apparatus according to the second aspect, the heating means is in close contact with the upper surface of the waterproof sheet when the opening / closing means is located at the closed position. Characterized in that it is a planar heater.

According to the third aspect of the present invention, when heating the object to be processed, the planar heater is adhered to the upper surface of the waterproof sheet, so that the temperature distribution is not biased and the entire object to be processed is evenly distributed. Can be heated. This means that when a plurality of processing objects in a stacked state are arranged on the support means and heated at the same time, a uniform product can be produced without variation in quality among the processing objects.

According to a fourth aspect of the present invention, in the vacuum thermocompression bonding apparatus according to any one of the first to third aspects, the supporting means includes: a base plate on which the object to be processed is placed;
A lower frame supporting the base plate from below,
An elastic member interposed between the lower frame and the base plate to allow vertical movement of the base plate;
Which is characterized by having

According to the fourth aspect of the present invention, the base member is allowed to move up and down by the elastic member. Therefore, when the opening / closing means is disposed in the closed position and the heating means is brought into contact with the upper surface of the suction means (in a planar state). (When the heater is in close contact with the upper surface of the waterproof sheet), good contact (adhesion) can be performed, so that heat is uniformly applied to the object to be processed via the suction means (waterproof sheet). be able to.

According to a fifth aspect of the present invention, in the vacuum thermocompression bonding apparatus according to the fourth aspect, a detachable heat radiating plate is provided between the base plate and the processing object placed on the base plate. Interposed.

According to the fifth aspect of the present invention, by disposing the heat radiating plate between the treatment object and the base plate, it is possible to reduce heat transmitted from the treatment object to the base plate during heating.

According to a sixth aspect of the present invention, in the vacuum thermocompression bonding apparatus according to the fifth aspect, a detachable heat insulating member is provided between the heat radiating plate and the treatment object placed on the base plate. The seat is interposed.

According to the sixth aspect of the present invention, the heat of the object to be processed can be prevented from escaping to the base plate side by the heat insulating sheet, so that the object to be processed can be efficiently heated.

According to a seventh aspect of the present invention, in the vacuum thermocompression bonding apparatus according to any one of the third to sixth aspects, when the opening means is located at the opening position, the planar heater is press-fitted. It is characterized by being arranged at a position higher than the cooling water receiver of the suction means in a state.

According to the seventh aspect of the present invention, for example, when the heater uses electricity, the heater is arranged at a position higher than the cooling water receiver. This cooling water is less likely to be applied to the heater. Further, even if the cooling water leaks from the cooling water receiver, the leaked cooling water does not enter the heater. Therefore, it is possible to effectively prevent the leakage due to the entry of the cooling water into the heater.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. It is to be noted that components denoted by the same reference numerals in the drawings have the same configuration or operation, and redundant description thereof will be omitted as appropriate.

<Embodiment 1> FIGS. 1 to 5 show an example of a vacuum thermocompression device 10 according to the present invention. Figure 1 shows
Opening / closing lid (opening / closing means) with respect to support member (supporting means) 11
FIG. 2 is a perspective view of the state in which the device 13 is disposed at the open position, as viewed from obliquely above from the front.
FIG. 3 is a perspective view showing the laminated state of the heat radiating plate 35 and the heat insulating sheet 36 in the same direction as FIG. 1, FIG. 3 is an enlarged view of a part of the opening / closing lid 13 as viewed from above, and FIG. FIG. 5 is an enlarged view taken along the line XX in FIG. 1. However, FIG. 5 shows a longitudinal sectional view when a work W (described later) is heated.

In the following, as shown in FIG. 5, this vacuum thermocompression bonding machine 10 is used as a thin object to be processed.
A case in which a design film (white film with a pattern) F as a processing object having a small thickness is sandwiched between two pieces of transparent glass G1 and G2 and bonded to produce crystal art will be described as an example. . Hereinafter, the whole of a plurality of processing objects in a stacked state is referred to as a “work W”.

The vacuum thermocompression device 10 shown in FIGS. 1 to 5 has a support member 11 as a support means, a vacuum member 12 as an adsorption means, an opening / closing lid 13 as an opening / closing means, and a heater 14 as a heating means. And The details will be described below in this order.

The support member 11 includes a base plate 15 and
It has a lower frame 16 and an elastic member 17 (see FIG. 5).

The base plate 15 is formed of a square plate-like member, and the upper surface thereof is a mounting surface 15a on which the work W is mounted. In the vicinity of the right end of the base plate 15, a suction port 18 is attached from below as shown in FIG. This suction port 1
A pipe 20 is connected to 8, a joint 21 is connected to the pipe 20, a hose 22 is connected to the joint 21, and the hose 22 is connected to a vacuum pump 23 (see FIG. 1). The suction port 18 has a sealed space S described later formed on the mounting surface 15a of the base plate 15.
(See FIG. 5), a through hole 18a is formed.
The through hole 18 a is connected to a vacuum pump 23 via a pipe 20, a joint 21, and a hose 22. Therefore, by driving the vacuum pump 23, it is possible to extract air from the sealed space S through the through holes 18a and the like.

The lower frame 16 is constructed by connecting a plurality of pipe-shaped frame members in a front-rear direction and a left-right direction as shown in FIG. That is, the four frame members 16a, 16b,
16c, 16d and two frame members 16 in the left-right direction
e, 16f are connected to each other to form a frame-shaped lower frame 16. However, in FIG.
Reference numerals 6b, 16c, and 16f indicate the joint portions. At the front ends of the frame members 16a, 16d in the front-rear direction, hooks 19a, 1 that can be disengaged from a part of an upper frame 30, which will be described later, when the opening / closing lid 13 is disposed at the closed position.
9b is provided. One end of the cylinder 24 is connected to the rear side of the leftmost frame member 16a of the four frame members in the front-rear direction. The other end of the cylinder 24 is connected to an upper frame 3 described later.
Connected to 0.

In this embodiment, a total of four elastic members 17 are interposed between the lower frame 16 and the base plate 15 to allow the base plate 15 to move up and down. Among them, one elastic member 17 is
As shown in FIG. 5, both the upper portion of the rear portion of the frame member 16 c in the front-rear direction and the lower surface of the base plate 15 are bonded with an adhesive. The other three elastic members (not shown) have the same configuration.
6c, and the front and rear portions of the frame member 16b. Thus, the base plate 15
Since it is supported by the lower frame 16 by the elastic members 17, as described later, when the open / close lid 13 is arranged in the closed position and the heater 14 is brought into close contact with the upper surface of the waterproof sheet 25 of the vacuum member 12, Good adhesion can be realized. Thereby, the heater 14 can uniformly apply heat to the work W via the waterproof sheet 25. The elastic member 17 can be formed of, for example, urethane foam (sponge).

The vacuum member 12 includes a flexible waterproof sheet 25 that covers the work W placed on the placement surface 15a of the base plate 15 from above and forms a sealed space S with the base plate 15; A bank-like edge member 26 projecting upward from a peripheral portion of the waterproof sheet 25 to prevent leakage of cooling water on the waterproof sheet 25;
The waterproof sheet 25 and the edge member 26 constitute a cooling water receiver on the upper surface of the waterproof sheet 25. In addition, on the lower surface 26a of the edge member 26, a belt-like shape is
A seal member 27 is attached. The outer periphery of the edge member 26 is formed so as to substantially coincide with the outer periphery of the above-described base plate 15, and the vacuum member 12 is placed on the placement surface 15 a of the base plate so that the outer periphery thereof matches the outer periphery of the base plate 15. Then, the lower surface of the waterproof sheet 25, the mounting surface 15a of the base plate 15,
A sealed space S is formed in a portion surrounded by the seal member 27. In this state, the above-described suction port 18 is provided inside the sealing member 27, that is, in the sealed space S, through hole 18a.
Is to be opened. As the waterproof sheet 25, for example, a rubber sheet having waterproofness and heat resistance can be used. In the present embodiment, the vacuum member 12 is formed separately from other members, and is detachable from the base plate 15. The vacuum member 12 is provided on the mounting surface 15a of the base plate 15.
May be supported by, for example, the lower frame 16 so that can be opened and closed.

The cover 13 has a holding plate 28 for holding the heater 14 and an upper frame 30 for supporting the holding plate 28.

The holding plate 28 is a plate-like member formed substantially in the same shape as the base plate 15 described above.

The upper frame 30 is formed in a frame shape by mutually connecting two frame members 30a, 30b in the front-rear direction and three frame members 30c, 30d, 30e in the left-right direction. I have. The rear ends of the frame members 30a and 30b in the front-rear direction are swingably connected to the rear ends of the frame members 16a and 16d in the front-rear direction of the lower frame 16 described above. Thereby, the upper frame 30 can be opened and closed with respect to the lower frame 16. Between the upper frame 30 and the lower frame 16, the above-described cylinder 2
4 are interposed. The upper frame 30 can be stopped by the cylinder 24 at any position between the closed position and the open position. At the front end side of the frames 30a, 30b in the front-rear direction, the above-mentioned hooks 19a, 1
There are provided engaging portions 31a and 31b with which the 9b is disengaged.
It should be noted that the opening / closing lid 13 is arranged at the closed position, and the hooks 19a,
19b is engaged with the engaging portions 31a and 31b, the frame member 30c in the left-right direction is
Acts as a handle when carrying the whole.

The heater 14 is fixed to the lower surface of the holding plate 28 described above. The heater 14 includes a light member having a high thermal conductivity, such as a heat plate 32 formed of aluminum, and a frame member 33 provided in a bank shape around the heat plate 32.
And a heating member (not shown) for heating the heating plate 32. When the vacuum member 12 is placed on the placement surface 15a of the base plate 15 and the opening / closing lid 13 is disposed in the closed position, the heater 14 is formed to have a size just inside the edge member 26 of the vacuum member 12. I have. Further, at this time, the frame member 33 of the heater 14 is provided with a work W, a heat insulating sheet 36 and a heat radiating plate
It is located outside. This allows
The hot plate 32 can be brought into close contact with the upper surface of the waterproof sheet 25. As shown in FIG. 3, a temperature adjustment dial 34 of the heater 14 is disposed on the left side of the upper surface of the holding plate 28 on the front side.

In this embodiment, the detachable heat radiating plate 35 and the detachable heat insulating sheet 36 overlap between the mounting surface 15a of the base plate 15 and the work W downward. To be interposed. Heat sink 3
Reference numeral 5 denotes a metallic wire net-like member, which is configured to have a large surface area as a whole. The heat insulating sheet 36 is made of, for example, Teflon (a registered trademark of DuPont).
It was made by inserting a felt mat into a plastic bag.

The vacuum thermocompression device 10 having the above-described structure can produce a crystal art by pressing, heating and cooling the work W as follows.

First, a design film (white film with a picture) F is prepared.

An original is color-copied on a white film, a designated glass is placed on the picture of the white film after the copying, and the original is cut into a glass by a cutter. After cutting, the white film is washed with a neutral detergent to remove oil. After washing with water, wipe off the moisture with a towel and dry. Thus, the design film F is completed.

The work is set.

As shown in FIG. 5, a work W is formed by laminating a glass G1, a sheet-shaped special adhesive (not shown), a design film F, a sheet-like special adhesive (not shown), and a glass G2 in this order. And sell it with Cellotape (registered trademark)
Temporarily fix with etc. This completes the work setting.

The open / close lid 13 of the vacuum thermocompression device 10 is opened and placed at the open position, the power of the vacuum thermocompression device 10 is turned on, and the heater 14 is heated to a predetermined temperature by the temperature adjustment dial 34.

The mounting surface 15a on the upper surface of the base plate 15
Then, the heat radiating plate 35, the heat insulating sheet 36, and the work W are stacked in this order. Then, the vacuum member 12 is put on the work W. Thereby, as shown in FIG.
5, a sealing space S is formed between the mounting surface 15a, the waterproof sheet 25, and the sealing member 27.

When the vacuum pump 23 is turned on, air is released from the sealed space S, and the loading surface 15a and the waterproof sheet 2
5 and the work W is sandwiched between them. At this time, since the heat insulating sheet 36 acts as a cushion, good pressure bonding can be performed.

After confirming that the air has completely escaped from the sealed space S and the waterproof sheet 25 has come into close contact with the work W, the temperature of the hot plate 32 is measured by a thermometer (not shown). When a thermometer is set upright at the center of the hot plate 32 and it is confirmed that the temperature is about 90 to 95 ° C.,
3 is closed and arranged in the closed position, and the hot plate 32 is brought into close contact with the upper surface of the waterproof sheet 25. At this time, as described above, the base plate 15 supporting the work W is
The hot plate 32 is satisfactorily adhered to the upper surface of the waterproof sheet 25 because it is vertically movably supported by the lower frame 16 via the.

After the heating for 10 minutes is completed, the opening / closing lid 13
Open and place in open position. The temperature of the work W is measured from above the waterproof sheet 25, and when it is confirmed that the temperature has reached 80 ° C., while the vacuum pump 23 is operated,
The work W is cooled. The work W is cooled with the cooling water by applying a towel sufficiently containing the cooling water to the work W from above the waterproof sheet 25. When the towel is warmed, the towel is once squeezed, the cooling water is again contained in the towel, and the work W is cooled from above the waterproof sheet 25. Such cooling with cooling water is repeated until the temperature of the work W measured from above the waterproof sheet 25 becomes 30 ° C. or less. In the present invention, the cooling water receiver is constituted by the waterproof sheet 25 and the edge member 26 as described above, and the cooling water can be retained by the cooling water receiver, so that the cooling water does not leak. .

When the temperature of the work W falls below 30 ° C.,
Switch off the vacuum pump 23 and switch the vacuum member 1
Remove 2.

Thus, the crystal art is completed.

In the above-described work W, when one glass G1 is replaced with a metal plate, a metal art can be created.

[0048]

As described above, according to the present invention,
By making the configuration for crimping the processing object and the configuration for heating different configurations, after the heating by the heating unit is completed, while maintaining the compression state of the processing object by the adsorption unit, the opening and closing unit The heating means can be moved to the open position and the heating means can be retracted from the upper surface of the suction means, and a cooling water receiver is formed on the upper surface of the suction means. The object to be processed can be cooled via the. As described above, a water cooling system having a higher cooling efficiency than the air cooling system can be realized with a simple configuration in which the cooling water receiver is provided on the upper surface of the adsorption unit. With the water cooling system, the cooling time can be greatly reduced, and the overall processing time can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a state in which an opening / closing lid is arranged at an open position with respect to a support member, as viewed obliquely from the upper front side.

FIG. 2 is a perspective view in the same direction as FIG. 1, showing a stacked state of a suction unit, a heat radiating plate, and a heat insulating sheet.

FIG. 3 is an enlarged view of a part of the opening / closing lid as viewed from above.

FIG. 4 is an enlarged view taken along line XX in FIG. 1;

FIG. 5 is an enlarged view taken along line YY in FIG. 1;

[Explanation of symbols]

Reference Signs List 10 vacuum thermocompression device 11 support means (support member) 12 suction means (vacuum member) 13 opening / closing means (opening / closing lid) 14 heating means (heater) 15 base plate 16 lower frame 17 elastic member 25 waterproof sheet 26 edge member 30 upper frame 35 Heat sink 36 Heat insulation sheet G1, G2, F Processing object (G1, G2: glass, F: design film) S Sealed space W Work

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F211 AD03 AD04 AD08 AG02 AG03 AH17 AH47 AM28 TA03 TA04 TC02 TD11 TH02 TH06 TJ13 TJ14 TJ15 TJ22 TJ23 TJ30 TN07 TN43 TN56 4G061 AA02 AA26 BA01 BA02 CA02 CB03 CD16 CD02 DA61 DA67

Claims (7)

[Claims] 1. A vacuum thermocompression bonding machine for compressing and heating at least two thin objects to be processed in a laminated state and supporting the objects to be processed in a laminated state from below, and the supporting means. An absorption unit that covers the processing target object from above and that removes air in a sealed space formed between the processing target object and the supporting unit, thereby sandwiching the processing target object with the supporting unit; An opening / closing means which is openable and closable with respect to the support means and has a closed position covering the upper part of the support means, and an open position for opening the upper part of the support means; and Abutting on the upper surface of the suction means by being arranged at the position,
Heating means for heating the object to be processed via the suction means, wherein the suction means is detachably attached to the support means, and a cooling water receiver is formed on an upper surface of the suction means. A vacuum thermocompression device characterized by that: 2. The flexible waterproof sheet that covers the object to be processed on the support means from above and forms the sealed space between the support means and the suction means, and a peripheral edge of the waterproof sheet. A bank-shaped edge member projecting upward from the portion to prevent leakage of cooling water on the waterproof sheet;
The vacuum thermocompression device according to claim 1, wherein the cooling water receiver is constituted by: 3. The heating device according to claim 2, wherein the heating unit is a planar heater that is in close contact with an upper surface of the waterproof sheet when the opening / closing unit is disposed at the closed position. Vacuum thermocompression device. 4. The support means includes: a base plate on which the object to be processed is placed; a lower frame supporting the base plate from below; a lower frame interposed between the lower frame and the base plate; An elastic member that allows vertical movement,
The vacuum thermocompression bonding device according to any one of claims 1 to 3, comprising: 5. The vacuum thermocompression bonding according to claim 4, wherein a removable heat sink is interposed between the base plate and the processing object mounted on the base plate. vessel. 6. The vacuum heat source according to claim 5, wherein a detachable heat insulating sheet is interposed between the heat radiating plate and the treatment object placed on the base plate. Crimper. 7. The planar heater is arranged at a position higher than the cooling water receiver of the suction unit in a pressure-bonded state when the opening unit is arranged at the opening position. The vacuum thermocompression bonding device according to any one of claims 3 to 6, wherein