JPS6213778Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a piping installation device for a mold for foam molding, and more specifically, the invention relates to a piping installation device for a mold for foam molding. The present invention relates to a pipe installation device for installing pipes such as cooling water pipes and drain pipes.

The purpose of this is to create a steam chamber in a conventional mold by installing piping such as a steam pipe for heating, a cooling water pipe for cooling, and a drainage pipe in a piping installation device that has a space inside the frame. In addition to omitting or reducing the frame provided for the mold, the space within the frame is used to facilitate inspection and maintenance, and the installation locations of these pipes communicating with the steam chamber of the mold are not limited. be.

As shown in FIG. 4, in the conventional foam molding mold, a frame 12 is installed at a predetermined interval between the cavity 2, core 3, and back plate 4 of each mold.
Pipes such as steam pipes and cooling water pipes are installed behind the frame 12, and the back plate 4 is fixed to the frame 12 with a vault, so when inspecting and maintaining each pipe, remove the vault and remove the back plate 4. This is not only troublesome as it has to be removed, but the spacing between the back plates 4 and 4 of the cavity 2 and core 3 is larger than that required for molding in order to arrange these pipings. As the frame 12 is lengthened, the steam chamber becomes larger, which poses a problem not only in terms of thermal efficiency but also in the lengthening of the molding cycle of the molded product.

Furthermore, the installation and location of the drain port or drain pipe 9 is limited to the lower frame 12, which poses a problem in that mold replacement work is hindered.

Furthermore, there is another conventional example disclosed in Utility Model Application No. 56-3622, in which a lid back plate 4' is provided to seal the back surface of the core 3, as shown in FIG. Although the steam chambers 6 on the back side of the core 2 are constructed to be independent from each other, even in this structure, a flat back plate 4 is provided at a predetermined interval behind each lid back plate 4'. Pipes such as steam pipes and cooling water pipes are arranged within the space between the lid back plate 4' and the back plate 4.

Therefore, the back plate 4 must be removed when inspecting and maintaining each piping, and the frame 12 must be lengthened to ensure spacing for piping, so there is no drawback that the mold becomes larger. remains unresolved.

This invention was devised to solve these conventional problems, and its gist is that when inspecting and maintaining piping such as steam pipes and cooling water pipes, it is not necessary to remove the back plate like in the conventional structure. In order to enable inspection and maintenance without any hassle, a pipe mounting device with a space inside the frame is fixed behind the pack plate located on the back of the cavity and core, and each pipe is arranged using this space inside the frame. It is in.

Hereinafter, the details of the piping attachment device for the foam molding mold of the present invention will be further explained based on the accompanying drawings.

The piping installation device shown as 1 in the figure forms a framework of section steel with a cross-sectional shape, I-shape, H-shape, etc. in consideration of strength, according to the area of the cavity 2, the core 3, and the number of molds. It is constructed vertically and horizontally and assembled into a lattice or other shape having a frame space 5, and is fixed behind a back plate 4 provided on the back of the cavity 2 and core 3 by bolting or other appropriate means. .

Piping such as a steam pipe 7, a cooling water pipe 8, a drain pipe 9, etc., which pass through the back plate 4 and communicate into the steam chamber 6 of the mold, are arranged using the space 5 within the frame of the pipe mounting device 1. For example, as shown in the figure, each steam pipe 7, cooling water pipe 8, and drain pipe 9 are fitted and inserted into a support hole 10 provided by cutting out a steel section of the pipe mounting device 1. The cooling water pipe 8 is inserted into the support hole 11 provided through the section steel of the piping mounting device 1, and is disposed in the frame space 5.

Further, the spray nozzles 14 provided at the tip of the pipe body connected to the cooling water pipe 8 facing the steam chamber 6 are screwed to the back surface of the back plate 4 for easy maintenance and inspection. 14... and rubber or nylon cooling water pipe 8
are detachably connected by a union joint 19.

Here, in each mold, a back plate 4 is fixed via a side frame 12 to form a steam chamber 6 at an interval on the back side of the cavity 2, and a molding space 13 is formed between the mold and the surface of the cavity 2. Although not shown, a back plate 4 is fixed directly or via a center plate 15 to form a steam chamber 6 on the back surface of the core 3.

Here, the side frame 12 has a short dimension that is approximately the same length as the cavity 2, and the back plate 4 is a continuous single plate that is positioned on the back side of the cavity 2 and on the back side of the core 3. 3. By directly contacting the center plate 15 on the back side, one back plate 4
This makes the steam chambers 6 on the back side of each core 3 independent.

Further, a back plate 4 on the back side of the cavity 2 is fixed to the upper and lower side frames 12 to form a steam chamber 6.

In order to connect the steam pipe 7, cooling water pipe 8, and drain pipe 9 to the steam chamber 6, the back plates 4, 4
The tube body has an opening at the tip facing the steam chamber 6, and a union joint 18 at the base end to communicate with the connected steam pipe 7 and drain pipe 9, and the spray nozzle 14 at the tip. The distal end thereof is opened toward the steam chamber 6, and the proximal end thereof is attached with a pipe body provided with a union joint 19 for communication with the cooling water pipe 8 to be connected, and is inserted through the back plates 4, 4. To the union joints 18 and 19 of the installed pipe body,
Support holes 10 and 11 provided in the section steel of the pipe attachment device 1
One end of a steam pipe 7, a drain pipe 9, and a cooling water pipe 8, which are inserted into the frame space 5 of the pipe mounting device 1, are removably connected to each other.

In the figure, 16 is a raw material supply feeder, and 17 is an extrusion pin.

Union joint 1 regardless of the illustrated embodiment
It is also possible to use other suitable joints in place of 8 and 19.

According to such a piping attachment device for a mold for foam molding, by using the piping attachment device 1 having an inner frame space 5 in place of the conventional flat back plate, it is possible to remove the conventional back plate 4. Inspection and maintenance of the steam pipe 7, drain pipe 9, and cooling water pipe 8 on the back of the cavity 2 and core 3 can be easily done by attaching and detaching the union joints 18 and 19, making use of the space 5 within the frame. In particular, when the spray nozzles 14 become clogged, the cooling water pipe 8 can be easily removed and each spray nozzle 14 can be inspected.

In addition, the parts where each pipe is connected to the steam chamber 6 are not limited, and the arrangement of the pipes is further simplified, and each pipe itself can be inserted into the support hole 10 formed in the pipe mounting device 1 or supported. Since it is inserted through the hole 11, the piping is reinforced in the middle, resulting in a strong piping structure.

In addition, since the piping attachment device 1 is fixed to the back plate 4 on the back surface of the cavity 2 or the core 3, both the piping attachment device 1 and the back plate 4 are reinforced, and the entire mold can be constructed strongly.

The piping installation device for the foam molding mold of the present invention as described above not only makes it easy to inspect and maintain the piping communicating with the steam chamber 6, but also allows the piping to be arranged inside the steam chamber 6. Since there is no need to do this, the steam chamber 6 can be made smaller, the thermal efficiency is better, and the molding cycle of the molded product can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the mold for foam molding of the present invention, which is equipped with a piping attachment device;
FIG. 2 is a perspective view showing an embodiment of the piping installation device, FIG. 3 is an enlarged partially sectional front view showing how the piping is arranged on the back plate, and FIGS. 4 and 5.
The figure is a vertical cross-sectional view of a mold showing the arrangement of conventional piping. 1: Piping installation device, 2: Cavity, 3: Core, 4: Back plate, 5: Space inside frame, 6: Steam room, 7: Steam pipe, 8: Cooling water pipe, 9: Drain pipe,
10: Support hole, 11: Support hole, 12: Frame,
13: Molding space, 14: Spray nozzle, 15:
Center plate, 16: Raw material supply feeder,
17: Extrusion pin, 18: Union joint, 19:
union fitting.

Claims (1)

[Claims for Utility Model Registration] A back plate 4 is fixed to the back side of the cavity 2 via a side frame 12 to form a steam chamber 6 at an interval, and a molding space 13 is formed between it and the surface of the cavity 2. In order to form a steam chamber 6 on the back side of the core 3, a back plate 4 is fixed directly or via a center plate 15 in the foam molding mold, and a molded steel is installed behind the back plate 4, 4 on the back side of the core 3 and the cavity 2 of the mold. The piping attachment device 1 is formed into a frame and has a frame space 5 therein, and is fixed therein, and also penetrates through the back plates 4, 4, with an opening at the tip facing the steam chamber 6, and a connection at the base end. A pipe body provided with a joint is attached to communicate with the pipe to be connected, and one end of the pipe, which is inserted into the support hole provided in the steel mold of the pipe fitting device 1 and arranged in the frame space 5, is attached to and detached from the joint of the pipe body. Piping installation device for foam molding molds that can be freely connected.