JPS604739Y2 - Heat radiation prevention device for heating plate in press - Google Patents

Description

[Detailed description of the invention] This invention is related to a safe heat radiation prevention device that heats the molding material in a press for molding rubber and synthetic resin products.The purpose is to suppress heat radiation from the safe four circumferences and save energy. It is something.

In a press for molding synthetic resin or rubber, press molding is performed while heating the material to be filled into the mold to a desired temperature required for molding.

This heating of the mold material causes the mold to be sandwiched between the upper plate or movable plate and the mold when the mold is installed on the upper plate or movable plate.

Therefore, heat is conducted to the mold and heated to the desired temperature, but at the same time, since the four circumferences of the mold are open to the atmosphere, a large amount of heat is radiated into the atmosphere, resulting in a large power loss. Become.

In the recent era of soaring electricity rates due to soaring oil prices, there is a disadvantage that molding costs are high, and it is also a step backwards from an era of energy conservation.

The present invention has been devised in view of this, and will be described below based on the illustrated embodiments.

In the figure, reference numeral 1 denotes a press body, which is equipped with a hydraulic cylinder 2 having a required press pressure, and has a plurality of columns 4 erected on a fixed platen 3 at the top of the body.
A movable platen 5 is provided as a guide and a ram 2a of a hydraulic cylinder is attached to the movable platen 5 so as to be movable up and down, and an upper platen 6 is provided on the upper part of the column 4 in a fixed or adjustable manner facing the movable platen 5. This configuration is the same as that of ordinary presses for molding synthetic resins, rubber, etc.

A heat insulating plate 7 is provided on the bottom surface of the upper plate 6 and the top surface of the movable plate 5, respectively.
, 8 are used to fix the safety plates 9 and 10. In this case, the mounting plate 11 of the heat radiation prevention device is sandwiched between the safety plates and the upper or movable plate.

This mounting plate 11 is larger than the safety plates 9 and 10 and has a plurality of bolt insertion holes 11a for fixing. It is made larger than the bolt diameter so that it can be used, and it can be applied in various safe ways.

Among these mounting plates 11, the mounting plate 11 is fixed to the upper panel.
A surrounding wall plate 12 is integrally provided below the periphery of the plate, and surrounds the outer periphery of the safe plate 9 at a predetermined distance from the outer end surface of the hot platen.

The length of the surrounding wall board 12 in the height direction is larger than the normal thickness, and the lower end of the surrounding wall board is below the bottom surface of the heating plate, and the heat dissipation from the outer peripheral surface of the heating plate, i.e., heated air and radiant heat, is ensured. This mounting plate is coated with a heat insulating material in order to allow heat to accumulate in the surrounding wall board and to prevent heat radiation from the outside surface of the surrounding wall board.

This surrounding wall board 12 is designed to surround the outer periphery on all four sides, but one side of the surrounding wall board 12 is designed so that it can be easily taken in and out depending on the shape, size, opening/closing operation, etc. of the mold. It may be opened and closed using a door type, a tilting type, an elevating type, a sliding type, etc.

Also, a mounting plate 1 is clamped between the movable platen 5 and the heat insulating plate 8.
1 is formed in the same manner as the above-mentioned mounting plate 11, but the height of the surrounding wall plates 13 provided on the four peripheries of this mounting plate 11 is adjusted so that the molds on the movable platen can be easily put in and taken out and opened and closed. The length in the direction should not be too long or high.

The top surface of Safe No. 10 or a little higher than the top surface of No. 10, and when a predetermined pressure is applied to the mold by raising the ram, a peripheral wall plate 13 protrudes from this lower mounting plate, and an upper mounting plate. The surrounding wall plates 12 vertically installed are overlapped so as to fit inside and outside each other to surround the safe periphery so that the heat radiated from the safe during pressure molding is not released into the atmosphere.

Although the peripheral wall plates 12 and 13 are shown with the 12 side facing outward, either side may be facing outward.

The surrounding wall plate 13 is also covered with a heat insulating material.

Further, one side circumferential surface of the surrounding wall plate 13 may also be of an open/close type so that opening/closing of the mold, taking in and out of the mold, taking out of the molded product, etc. can be done easily.

According to the present invention, the radiant heat and convection heat from the safe is released into the atmosphere by surrounding the safe with an insulating peripheral wall plate that is integrally provided with the mounting plate sandwiched between the safe and the heat insulating board. Since the heat is stored and heat is stored, power loss for safe heating can be greatly reduced, and the safe can be removed from the upper plate or movable plate and sandwiched between the upper plate or movable plate and the heat insulating plate. It has the advantage that it can be easily used in existing presses by simply installing it.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of the press die, and FIG. 2 is a partially cutaway perspective view. 1...Press body, 2...Hydraulic cylinder, 2a...□...Ram, 3...Fixed platen,
4... Prop, 5... Movable plate, 6...
...Top panel, 7, 8...Insulation board, 9,10...
...Safe, 11.=...Mounting plate, 12.13.
...surrounding wall board.

Claims (1)

[Scope of utility model registration request] In a press for molding rubber/synthetic resin products, the upper plate and movable plate are each provided with a safety plate via a heat insulating plate,
A box-shaped mounting plate, which is larger than the safe and has an open bottom on the upper side, is installed between the safe and heat insulating plates provided on the upper and movable plates.
A box-shaped mounting plate with an open top is held between the movable sides, and an insulating peripheral wall plate is placed around the periphery of the mounting plate at a distance from the safe periphery so as to store a specified amount of heat. When pressurizing, the surrounding wall plates of the mounting plates safely installed on the upper plate and the movable plate fit together inside and outside to isolate the external part of the heating plate from the atmosphere, ensuring safe heat radiation prevention in the press. Device.