JP2004216585A - Vacuum forming mold apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rational piping mechanism on the assumption of mold replacement. <P>SOLUTION: This vacuum forming mold apparatus is equipped with a mold 2 provided with a plurality of evacuation ports 1 and a piping device 3 detachable with respect to the mold 2. The piping device 3 is provided with a plurality of individual pipes 4 inserted in the respective evacuation ports 2, etc. and one piping 5 formed by collecting the individual pipes 4, etc. A heater 6 which can be brought into contact with the mold 2 in a heat conductive state is provided to the piping device 3. Further, a support device 7 capable of supporting the mold 2 is provided to the piping device 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vacuum forming mold device.
[0002]
[Prior art]
2. Description of the Related Art A vacuum forming apparatus provided with a pipe which is communicated and integrated from a mold provided with a plurality of vacuum holes is known, for example, from Japanese Patent Application Laid-Open Publication No. H11-163,837.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 4-275930
[Problems to be solved by the invention]
However, it should be noted that there is a problem to be solved that is not suitable for changing molds, and is not suitable for switching and producing many types, such as gloves for lighting fixtures. . The present invention has been made in view of such a problem to be solved, and aims to provide a rational piping mechanism on the premise of mold replacement.
[0005]
[Means for Solving the Problems]
In summary, the present invention includes a mold provided with a plurality of vacuum holes, and a piping device detachable from the mold, wherein the piping device has a plurality of individual holes inserted into the respective vacuum holes. This is a vacuum forming mold apparatus provided with a pipe and an integrated pipe that is connected and integrated from these individual pipes. Further, it is preferable to provide a heater capable of conducting heat contact with the mold in the piping device. Furthermore, it is preferable to provide a support device capable of supporting the mold in the piping device.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described. However, it is an exemplary embodiment adopted based on the present invention, and the present invention should not be interpreted in a limited manner based on matters specific to the embodiment. Instead, the technical scope of the present invention should be determined on the basis of the matters stated in the claims and matters substantially equivalent to the matters.
[0007]
The illustrated embodiment includes a mold 2 provided with a plurality of vacuum holes 1... And a piping device 3 detachable from the mold 2. Are a plurality of individual pipes 4 to be inserted into a plurality of individual pipes 4 and an integrated pipe 5 that is connected and integrated from the individual pipes 4 to each other. Further, the piping device 3 is provided with a heater 6 that can be brought into heat-conducting contact with the mold 2. Furthermore, the piping device 3 is provided with a support device 7 that can support the mold 2.
[0008]
More specifically, a fixture 8 is fixed near the outer periphery of the mold 2, and a concave surface 9 is formed at the center of the upper surface of the mold 2. Near the outer periphery of the lower surface of the metal shell piping device 3, the lower ends of the individual pipes 4 are formed so as to protrude in correspondence with the vacuum drawing holes 1. Are connected and integrated to the integrated pipe 5. An O-ring 4a made of an elastic material such as rubber is attached to the outer periphery of the lower end of the individual pipes 4 to ensure airtightness between the lower end of the individual pipes 4 and the upper end of the vacuum drawing holes 1. .
[0009]
A heater 6 for warming the mold 2 to improve the moldability is supported by the piping device 3 with a good buffering property via a buffering element 10 such as a coil spring, and the lower surface of the heater 6 has a cushioning property and heat conductivity like a silicon sheet. The intermediate member 11 made of a good material is stuck and fixed. The heater 6 is a cast heater in which a sheath heater 6a is built in an outer shell made of an aluminum casting or the like.
[0010]
The support device 7 includes an air cylinder mechanism and the like, which is fixed near the center of the lower surface of the piping device 3, and allows the support arm 12 to advance and retreat in both directions from the support device 7. The piping device 3 is supported by a support 13 so as to be vertically movable.
[0011]
In order to change from the state shown in FIGS. 1 and 4 to the state shown in FIG. 5, the piping device 3 and the mold 2 are brought closer to each other so that the lower end of the individual piping 4. To be inserted. At this time, the lower surface of the heater 6, more specifically, the lower surface of the interposition member 11 abuts on the upper surface of the mold 2 within the concave surface 9 with good cushioning properties. Then, when the support arm 12 is extended and the to-be-attached object 8 is supported at the tip thereof, the mold 2 and the piping device 3 are connected. In this state, when air is drawn from the collecting pipe 5 by a vacuum pump (not shown), air is sucked from the lower end of the vacuum drawing holes 1 through the individual pipes 4 and the vacuum drawing holes 1, and a heat-softening resin sheet (not shown) or the like. Can be formed into a predetermined shape, but since the forming method itself is not directly related to the present invention, the description is omitted.
[0012]
Further, in order to change from the state of FIG. 5 to the state of FIGS. 1 and 4, it is preferable to retract the support arm 12 and then raise the piping device 3.
[0013]
According to the present embodiment, the piping apparatus 3 having the individual pipes 4 and the integrated pipe 5 is connected to the mold 2 so that the plurality of vacuum holes 1 in the mold 2 can be evacuated. Therefore, it is easy to exchange the mold 2 for another type, which is extremely advantageous for production switching of types such as gloves for lighting fixtures.
[Brief description of the drawings]
FIG. 1 is an overall perspective view at the time of disassembly. FIG. 2 is a schematic top view of the piping device. FIG. 3 is a schematic perspective view of the top view of the heater. FIG. 4 is an overall sectional view at the time of disassembly. Description]
DESCRIPTION OF SYMBOLS 1 Vacuum drawing hole 2 Die 3 Piping device 4 Individual piping 5 Centralized piping 6 Heater 7 Support device

Claims (3)

A mold provided with a plurality of vacuum holes, and a piping device detachable from the mold; the piping device includes a plurality of individual pipes inserted into each of the vacuum holes, Vacuum forming mold equipment provided with an integrated pipe that is connected and integrated from the pipe. 2. The vacuum forming mold device according to claim 1, wherein the piping device is provided with a heater capable of making heat conductive contact with the mold. 3. The vacuum forming die device according to claim 1, wherein the piping device is provided with a supporting device capable of supporting the die.

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