JPS6312426A - Vacuum packer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is applicable to two boards such as liquid crystal display boards, etc.
' This relates to a vacuum packing device used in the stacking assembly process.

Conventional technology Vacuum packing equipment has been used for a variety of purposes, but recently, for example, vacuum packing of two boards, such as liquid crystal display boards, stacked over each other with precision has been used to A new application has been developed in which air pressure is used as a means to pressurize a substrate surface.

Problems to be Solved by the Invention However, as shown in FIG. 11, when a workpiece made by stacking an upper plate 1 and a lower plate 2 is vacuum-packed with a pack material 3, it is pressurized by atmospheric pressure P, but the upper plate 1 is located off center with respect to the lower plate 2, the pressure P1 side and P
Since the shapes of the two sides are different, there is a difference in pack speed. As a result, until the vacuum packing is completed, there will be a difference in the forces acting on the upper side plate 1, and the positions of the upper side plate 1 and the lower side plate 2 will shift.

Further, FIG. 12 shows the same workpiece as in FIG. 11, in which a frame 4 surrounding the workpiece is vacuum packed.

In this case, as compared to FIG. 11, the effect of the frame 4 allows the force to be applied evenly, but since there is a difference in the gaps a1 and bl between the upper plate 1 and the frame 4, when vacuum-packed, There are differences in the extent to which the pack material 3 is squeezed by the atmospheric pressure P.

This difference is the force F acting on the fulcrum C of the upper plate 1 of the workpiece.
1 and the direction of the force F2 that similarly acts on the fulcrum d of the upper plate 1, that is, the difference between the angles Q1 and Q2 at which the forces F1 and F2 act.

As a result, the forces acting on the upper plate 1 become uneven, resulting in movement and displacement during vacuum packing.

Therefore, the present invention makes it possible for the force due to atmospheric pressure to be applied evenly to the workpiece when it is vacuum-packed, so that positional displacement is less likely to occur.

Furthermore, in the case of liquid crystal display substrates, after the upper and lower plates are combined and vacuum-packed, a process is performed to harden the UV-curable adhesive that has been applied in advance. Therefore, it is necessary to block ultraviolet rays in areas other than the area where the adhesive is applied.

Accordingly, the present invention provides a vacuum packing device with a function of freely absorbing deformation due to pressure and heat and blocking ultraviolet rays except in areas where adhesive is applied.

Means to Solve the Problem The technical means of the present invention to solve the problem is to provide an upper frame into which the upper plate of the workpiece made of two overlapping plates fits, and a lower frame into which the lower plate fits. are provided to equalize the gaps into which the upper frame fits into the upper plate of the workpiece.

Further, the lower frame into which the lower plate of the workpiece is fitted is provided with a bottom plate that is a thin plate that deforms freely in response to pressure.

Further, the upper frame includes a mask that has a pattern that blocks or transmits light rays such as ultraviolet rays, and is deformed freely in response to pressure. Further, a structure is provided in the light transmitting portion of the mask to absorb deformation of the mask due to thermal expansion.

action The effect of this technical means is as follows.

In other words, by making the gap between the upper plate of the workpiece and the upper frame equal, the speed of the vacuum pack and the angle of the force acting on the upper plate become equal, and as a result, the speed of the vacuum pack and the angle of the force acting on the upper plate become equal. The forces acting on are equal. Furthermore, by providing a bottom plate that deforms freely in response to pressure on the lower frame into which the lower plate of the workpiece is fitted, it is possible to simply hold and stop the workpiece, and it is possible to prevent the force due to atmospheric pressure from below. can be applied evenly to the workpiece. As described above, by equalizing the force acting on the workpiece, misalignment of the upper and lower plates is prevented.

In addition, by equipping the upper frame with a mask that has a pattern that blocks or transmits ultraviolet rays and other light rays and can be freely deformed in response to pressure, the force of atmospheric pressure is evenly applied to the workpiece, and at the same time it blocks ultraviolet rays and other rays. Prevents deterioration due to light rays. Furthermore, by providing a structure that absorbs thermal expansion in the light transmitting portion of the mask, the mask is prevented from being deformed by heat.

EXAMPLES Hereinafter, examples of the present invention will be described based on the drawings. Second
In the figure, reference numeral 6 denotes an upper frame into which the upper plate of the workpiece is fitted with a uniform gap, and this upper frame 6 is equipped with four positioning tools 9 used for positioning with the lower frame, which will be described later. There is. In Fig. 4, reference numeral 7 denotes a lower frame into which the lower plate of the workpiece is fitted with relative precision, and the workpiece is received and stopped by the lower frame 7, and the force due to atmospheric pressure is evenly applied to the workpiece. A bottom plate 8 made of a thin plate is provided for operation. Further, a positioning hole 10 into which the positioning tool 9 provided in the upper frame 6 fits is provided.

The vacuum packing apparatus of the present invention is a combination of the upper frame 6 in FIG. 2 and the lower frame 7 in FIG. 4 as described above.

FIG. 1 shows a combination of the upper frame 6 and lower frame 7 shown in FIGS. This shows the vacuum-packed state, and the gap a between the upper plate 1 and the upper frame 6 of the workpiece
By making and b equal, the force due to the speed of the vacuum pack and atmospheric pressure F5. The angle at which F4 acts will be the same.

That is, the forces acting on the upper plate 1 become uniform, and as a result, displacement of the upper plate 1 can be prevented. In addition, since the bottom plate 8 of the lower frame 7 has seven panes using a thin plate that deforms freely in response to pressure, the force due to atmospheric pressure from below can be evenly received by the lower plate 2 of the workpiece. .

Next, an embodiment in which a mask having a pattern that blocks or transmits light rays such as ultraviolet rays is provided on the upper frame will be described.

In FIG. 6, reference numeral 11 denotes a mask made of a thin metal plate that deforms freely in response to pressure, and this mask 11 has a mesh-like transmitting part 12 for transmitting light rays such as ultraviolet rays, and a shielding part 12 for blocking the light rays. It has a section 13.

In addition, the mesh shape of the transparent portion 12 is shown in FIGS. 8 and 9.
As shown in the figure, by making it L-shaped or S-shaped,
The mask can freely absorb expansion and deformation caused by heat. A method was also implemented in which the mask 11 was made of a resin film instead of a thin metal plate, and the same effect as the mask made of the metal thin plate was confirmed.

Figure 10 shows a vacuum-packed state in which a mask with a pattern that blocks or transmits the ultraviolet rays and other light rays is provided on the upper frame, and the mask not only absorbs deformation due to heat, but also absorbs pressure. Because it uses a thin plate that can be flexibly handled, the workpiece can be vacuum-packed with even force.

Effects of the Invention The present invention has the advantage of equalizing the gap between the upper plate of the workpiece and the upper plate, thereby equalizing the speed of the vacuum back, and equalizing the angles at which the force from atmospheric pressure acts. , it is possible to prevent the upper plate from shifting.

Further, by providing a bottom plate made of a thin plate that deforms freely in response to pressure on the lower frame into which the lower plate of the workpiece is fitted,
This has the effect of stably holding the workpiece and uniformly applying the force of atmospheric pressure from below through the thin plate.

Furthermore, by providing the upper frame with a thin plate mask that has a pattern that blocks or transmits ultraviolet rays and other light rays and that deforms freely in response to pressure, the upper plate is prevented from deterioration due to irradiation with ultraviolet rays and other light rays, In addition, it has the effect of evenly applying the force due to atmospheric pressure. Further, since the transparent portion of the mask has a structure that absorbs deformation due to thermal expansion, the mask can be prevented from deforming due to heat.

[Brief explanation of the drawing]

FIG. 1 is a sectional front view illustrating the packing state of a vacuum pack device in an embodiment of the present invention, FIG. 2 is a front view of the upper frame of the same vacuum bank device, and FIG. 3 is a right side view of the same upper frame. Figure 4 is a front view of the lower frame of the same vacuum pack device, Figure 5 is a right side view of the lower frame, and Figure 6 is a front view showing a mask with a pattern that blocks or transmits light rays such as ultraviolet rays. , Figure 7 is a right side view of the same mask, Figures 8 and 9 are enlarged views of the light transmitting part of the mask, and Figure 1o shows the state when the mask is attached to the upper frame and vacuum packed. The sectional view shown in FIG. 11 is a sectional view of a conventional vacuum packing device, and FIG. 12 is a sectional view of the same conventional vacuum packing device. 1...Upper side plate, 2...Lower side plate, 3...
...Pack material, 4...Frame, 6...
Upper frame, completed...Lower frame, 8...Bottom plate, 9.
...Positioning tool, 1o...Positioning hole,
11...Mask, 12...Transparent part, 1
3... Cutoff section. Fig. 1 Fig. 2 Fig. 3 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10/3 blocking part Fig. 11 Fig. 1 Upper A rule rough Fig. 12? Detective 11 plant

Claims (4)

[Claims] (1) An upper frame into which the upper plate of the workpiece formed by stacking two plates fits, and a lower frame into which the lower plate fits, and the gap between the upper plate of the workpiece and the upper frame into which the upper frame fits is made equal. vacuum packing equipment. (2) The vacuum pack device according to claim 1, wherein the lower frame into which the lower plate is fitted includes a bottom plate made of a thin plate that deforms freely in response to pressure. (3) The upper frame has a pattern that blocks or transmits light,
The vacuum packing apparatus according to claim 1, comprising a mask that deforms freely in response to pressure. (4) The vacuum packing device according to claim 1, wherein the mask that blocks or transmits light rays has a structure that freely absorbs deformation due to heat.