Injection compression forming mould of light guide plate and injection compression forming method of light guide plate
A technology of compression molding and light guide plate, applied in the direction of optical components, household appliances, other household appliances, etc., can solve the problems such as the inability to perform good transfer printing and the adjustment of the thickness of the light guide plate.
Inactive Publication Date: 2008-10-01
MEIKI
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Problems solved by technology
However, Patent Document 4 and Patent Document 5 are not technologies for injection compression molding, so there is a problem that good transfer cannot be performed.
And it is impossible to adjust the thickness of the light guide plate at all.
Method used
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[0037] refer to figure 1 Referring to FIG. 6 , the injection compression molding mold of the light guide plate and the injection compression molding method of the light guide plate according to the present invention will be described. figure 1 It is a sectional view of the injection compression molding mold of the light guide plate of this embodiment, and is a figure which shows the state at the time of contact of a mold. figure 2 It is a sectional view of the injection compression molding mold of the light guide plate of this embodiment, and is a figure which shows the state at the time of closing a mold and reducing a cavity volume. image 3 It is a front view of the movable mold of the injection compression molding mold of the light guide plate of this embodiment. Figure 4 It is a cross-sectional view of the injection compression molding mold of the light guide plate according to the present embodiment, and is a view showing a state in which a module is exchanged for mol...
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The invention provides an injection compression forming die for a light guide plate which can respectively remarkably transfer the light guide plates formed diversely, and an injection compression forming method for a light guide plate. In the injection compression forming die for the light guide plate (11) which is formed, in a manner of deformation, at a distance of a cavity main face forming face (18a) of a movable die (12) opposite to the cavity main face forming face (42a) of an immovable die (13), a cavity main face forming module (18) of the cavity main face forming face (18a) is formed, and cavity side face forming modules (29, 30, 31), which are provided at least in opening and closing directions of the dies opposite to the cavity main face forming module (18) in a manner of being capable of changing the opposite directions, can be provided replaceably.
Description
technical field [0001] The present invention relates to an injection compression molding mold for a light guide plate and an injection compression molding method for a light guide plate, in particular to an injection compression molding mold for a light guide plate and an injection compression molding method for a light guide plate that can be formed by changing the modules of the mold method. Background technique [0002] In the injection molding of a light guide plate, techniques described in Patent Document 1 to Patent Document 5 are known as techniques for molding different light guide plates using the same mold. The techniques described in Patent Document 1 to Patent Document 3 are techniques for forming different light guide plates by replacing a stamper on which a transfer pattern is formed or such a metal plate, which cannot be performed when the size of the light guide plate changes. response. Patent Document 4 is a technology that can use the same mold to mold fl...
Claims
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IPC IPC(8): B29C45/26B29C33/30B29L11/00
CPCB29C45/2673B29C45/561B29C2045/5645B29L2011/0075
Inventor 蛯名利幸
Owner MEIKI