JPS604741Y2 - Heat radiation prevention device for heating plate in press - Google Patents

Description

[Detailed description of the invention] This invention is designed to minimize the heat dissipation of the safe thermal energy that heats the molding material in the square press for molding rubber and synthetic resin products through the upper plate or movable plate. The purpose of the heat radiation prevention device is to suppress heat radiation from the upper and lower surfaces, thereby saving energy.

In square presses for molding synthetic resins and rubber, press molding is carried out while heating the material to be filled into the mold to the desired temperature required for molding.

This heating of the mold material is safely 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, the side opposite to the safe mold is in contact with the upper plate or movable plate, either directly or through an insulating plate, so this upper plate Alternatively, the amount of heat dissipated through the movable plate becomes large, resulting in a large power loss.

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.

In view of this, the present invention is designed to save energy by suppressing the conduction of heat to the upper plate or movable plate.
The following description will be made based on the illustrated embodiment.

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', which can be raised and lowered freely, and an upper platen 6 is provided on the upper part of the column 4, either fixedly or adjustable, facing the movable platen 5. This configuration is the same as that of an ordinary square press for forming synthetic resin, rubber, etc.

Safe plates 9 and 10 are fixed to the lower surface of the upper plate 6 and the top surface of the movable plate 5 through heat insulating plates 7 and 8 such as Bakelite plates and asbestos cement plates, respectively. A heat transfer prevention plate 11 for suppressing heat conduction is sandwiched between the plates.

This heat transfer prevention plate 11 has approximately the same size as the safety plates 9 and 10 and the heat insulation plates 7 and 8, and also provides heat insulation between the safety plate and the heat insulation plate, between the heat insulation plate and the upper plate, or between one or both of the movable plates. When stacking multiple panels, they are inserted between the heat insulation panels and sandwiched between them. This is done by drilling a large number of holes in the steel plate and reducing the contact area between the two members that come into contact with each other through the heat transfer prevention plates. This purpose is achieved by making the size as small as possible,
In addition, structures other than those shown in the drawings can be used as long as they can withstand the press pressure.

This heat transfer prevention plate is shaped like the example shown in the figure and has a thickness of about 1 mm.
Tomo, when using punched metal with an aperture ratio of 60% and inserting it into both the top and bottom of an asbestos cement insulation board, it is approximately 1.0% lower than when using only the insulation board.
It was possible to save 0-20% of power.

Therefore, power loss can be further improved by changing the thickness aperture ratio, the number of heat transfer prevention plates, the thickness of the heat insulating plates, and their thickness according to the press pressure.

Therefore, when using this invention, it is safe to use a heat insulating board, a heat insulating board and a top board,
Heat transfer to the upper plate or the movable plate can be easily and safely achieved by reducing the contact area between the movable plate and the movable plate on one or both sides, and inserting a heat transfer prevention plate that reduces the heat transfer area. The present invention has advantages such as being able to prevent heat generation and reduce the electric power used to heat the mold to the necessary minimum, thereby contributing to energy saving, as well as being simple in structure and installation, and being able to be applied to existing presses at low cost.

[Brief explanation of drawings]

FIG. 1 is a schematic front view of a press mold, and FIG. 2 is a perspective view of a heat transfer prevention plate. 1...Press body, 2...Hydraulic cylinder, 2a...Ram, 3...Fixed plate, 4
・・・・・・Strut, 5... Movable plate, 6...
...Top panel, 7, 8...Insulation board, 9,10...
・Pa・Safe, 11...Heat transfer prevention plate.

Claims (1)

[Scope of utility model registration request] In the corner press for forming rubber and synthetic resin products, a safety plate is provided on each of the upper plate and the movable plate, and between the upper plate and the safety plate provided thereon, and between the movable plate and the safety plate provided thereon. A heat-insulating plate is interposed, and a heat-transfer prevention plate is sandwiched between one or both sides of this heat-insulating plate by drilling a large number of holes in the iron plate to reduce the heat transfer area, and the upper plate or movable plate is secured by the heat-insulating plate. A reliable heat radiation prevention device for presses that prevents heat from being radiated through the plate.