JPS60154033A - Formation of flat base plate - Google Patents

Abstract

PURPOSE:To raise the efficiency of operations as well as the yield of flat base plate formation by lowering the operation level by a method in which a clamp frame clamping a flat base plate is fixed to a receiving base, the receiving base is lowered to the press position, an upper mold is lowered, and the flat base material being heated is molded between the upper mold and the lower mold. CONSTITUTION:A synthetic resin flat base plate 10 is clamped by a clamp frame 14, and the clamp frame 14 is delivered to a heating furnace 17 by operating a chain conveyer 12. The plate 10 is heated to a given temperature and delivered to a press device 21. The fame 14 delivered from the conveyer 12 is exactly placed on a receiving base 26 lifted up to a position close to the deliver level P. The collision of the flat base plate 10 with draw-down l formed by heating against the lower mold 22 can thereby be prevented. The base 26 is lowered to the press position by an elevating mechanism 25, the upper mold 23 is lowered, and the plate 10 is molded into a desired shape by the upper mold 23 and the lower mold 22 on the fixed side.

Description

Detailed Description of the Invention To explain in detail, the ends of a synthetic resin-based flat base material, such as a vehicle ceiling base material, a facing base material, and a base material such as a base material, are clamped by a clamp frame of a clamp mechanism. After clamping and transporting to a heating device and heating the flat substrate to a predetermined temperature, the flat base material is transported to a position where the lower mold and upper mold are opened in a horizontal press device, and the lower mold and upper mold are separated. The present invention relates to a method for molding a flat base material, which involves molding a flat base material into a desired shape.

FIG. 1 shows an outline of a conventional molding apparatus for a flat base material. When molding a synthetic resin flat base material 2 using this molding apparatus 1, first the horizontal direction is At the conveyance level P, the ends of the flat base material 2 are clamped by the clamp frame 3 of a clamp device (not shown), and then transported to a heating device 4 such as a heating furnace, and the flat base material 2 is heated to a predetermined temperature. Heat. When the synthetic resin flat base material 2 is heated with this heating device 4, the synthetic resin component of the flat base material 2 softens, especially in the center! and a drawdown l occurs. Next, the press device 5 is transported to a position where the lower die 6 and the upper die 7 are opened, but when the lower die 6 is in the upper press position shown by the imaginary line in FIG. Since drawdown l has occurred in the material 2, there is a risk that the flat base material 2 will collide with the upper part of the lower mold 6. Therefore, a vertical lifting device 8 consisting of a cylinder mechanism or the like is installed at the lower part of the lower mold 6. When the flat base material 2 is transported to the press device 5, the lower die 6 is lowered by an amount corresponding to the drawdown l of the flat base material 2, and the flat base material 2 is brought to the press position of the press device 5. After the conveyance, the lower die 6 is raised to a press position, and then the lower die 6 and the upper die 7 are brought together to form the flat base material 2 into a desired shape.

According to such a conventional molding method, the lower mold 6 is moved by a vertical lifting device 8.
This vertical lifting device 8 has to be moved up and down.
When placing and fixing on the floor surface F, the conveyance level P is not high, and the work level is also high, which has the disadvantage of deteriorating work efficiency. Furthermore, when installing the vertical lifting device 8, it was necessary to lower the conveyance level P by installing the vertical lifting device 8 at a low position by digging the floor F or the like.

The purpose of the present invention is to be able to set the conveyance level of a synthetic resin flat base material to a low level, to lower the work level and improve work efficiency, and to eliminate the need to place the lower mold on a vertical lifting device. Therefore, there is no need to excavate the floor surface during equipment installation, and the lower mold of a general single-function press can be used as the lower mold, and it is an economical flat base that can improve yield. The present invention provides a method for forming a material, which will become clear from the detailed description below with reference to the drawings.

FIGS. 2 and 3 each schematically show an embodiment of a forming apparatus for carrying out the method of forming a flat substrate according to the present invention. A conveyor 12 is provided, and this chain conveyor 12
A clamp frame 14 of a clamp device 13 is placed on top.

The chain conveyor 12 is rotationally driven by a drive source (not shown), and an engaging member 16 that engages with a hook 15 formed at one end of the clamp frame 14 is attached to the chain conveyor 12. The shift lamp frame 14 is conveyed in the same direction. A heating furnace 17 as a heating device is disposed in the middle of the chain conveyor 12 in the conveying direction. Heating furnace 17
Heater 1 is placed between the chain conveyor 12 at the top and bottom positions.
8 are arranged.

A press device 21 is disposed on the exit side of the heating furnace 17, that is, in the conveying direction of the chain conveyor 12. This press device 21 has a lower mold 22 on a fixed side and an upper mold 2 that can be raised and lowered freely.
3, and a general single-function press device can be used for the lower die 22. A vertical lifting mechanism 2 is mounted on the base 24 of the lower mold 22.
A pedestal 26 supported by 5 so as to be able to rise and fall freely is disposed. The platform 26 is raised and lowered by the lifting mechanism 25 to an upper position close to the conveyance level P and a lower position which is a press position.

A guide portion 27 that protrudes toward the chain conveyor 12 is formed on the side of the pedestal 26 facing the chain conveyor 12, so that the flat base material 10 conveyed by the chain conveyor 12 can be reliably conveyed to the press device 21. It is done like this. A frame fixing mechanism 31 for the clamp frame 14 is provided on the guide portion 27 side of the pedestal 26, and this frame fixing mechanism 3
The clamp frame 14 is held in a predetermined position by the frame fixing hinge 32 and the strut horns 33.

Next, the method for forming a flat base material according to the present invention will be explained.
First, a synthetic resin flat base material 10 is clamped by the clamp frame 14 of the clamping device 13, and the clamp frame 14 is conveyed to a heating furnace 17 as a heating device by driving a chain conveyor 12. The base material 10 is heated to a predetermined temperature. After heating, the chain conveyor 12 is driven to move the clamp frame 14 further in the horizontal direction, which is the transport direction, and transport it to the press device 21.

The pedestal 26 disposed above the base 24 of the lower mold 22 of the press device 21 is raised to an upper position close to the conveyance level P by the lifting mechanism z5. The clamp frame 14 conveyed from the chain conveyor 12 is attached to the guide section 27.
Therefore, it can be placed on the pedestal 26 more reliably. Since the pedestal 26 is in the upper position, there is no risk that the flat base material 10, which is heated and drawdown l is occurring, will collide with the lower mold 22. pedestal 2
After placing the clamp frame 14, that is, the heated flat substrate 10 on the clamp frame 14, the pedestal 26 is lowered by the lower position trap elevating mechanism 25 which is the press position, the hook 15 is lowered, and the engaging member 16 is released. Next, the upper mold 23 is lowered and the flat base material 10 is placed between the upper mold 23 and the lower mold 22 on the fixed side.
Shape into desired shape. Chain conveyor 12
is designed to make a reciprocating motion.

After the flat base material 10 is molded by the press device 21, by taking out the molded product from the press device 21, a molded product such as a molded ceiling for a vehicle, a covering material, a back garnish, etc. can be obtained.

The above is an embodiment of the method for molding a flat base material according to the present invention. According to such a method, there is no need to raise and lower the lower mold using an elevating mechanism, and transportation of a flat base material made of synthetic resin is not required. The level can be set low, the work level can be lowered and work efficiency can be improved, and there is no need to excavate the floor surface when installing the lower mold equipment, and the lower mold of a general single-capacity press machine can be used. It is possible to reliably transport the clamp frame that clamps the flat base material that is heated and drawdown is occurring to the press equipment, and is highly economical as it can significantly improve the yield. A method for forming a flat base material can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a schematic front explanatory view of a molding apparatus for carrying out the conventional method for molding a flat base material, and FIGS. 2 and 3 show a molding apparatus for implementing the method for molding a flat base material according to the present invention. The molding apparatus is schematically shown, with FIG. 2 being an explanatory front view, and FIG. 3 being a perspective view of the main parts. In the figure, 10... Flat base material, 11... Molding device, 12
...Chain conveyor, 13...Franz device, L4
... Clamp frame, 17 ... Heating furnace as a heating device, 2 Dobress device, 22. Lower mold, 23.. Upper mold, 24
- Base, 25... Lifting mechanism, 26... cradle.

Claims (1)

[Claims] The ends of the synthetic resin flat base material are clamped by the clamp frame of a clamping device, transported to a heating device, and after heating the flat base material at a predetermined temperature 1, the flat base material is placed between the bottom die of a horizontal press machine and In the method for forming a flat base material, the lower mold of the press device is transported to a position where the upper mold is opened, and the lower mold and the upper mold are matched to form the flat base material into a desired shape. The fixed side is provided with a pedestal for the clamp frame above the base of the lower mold, and the pedestal is supported so as to be able to rise and fall vertically by a lifting mechanism provided on the base of the lower mold. The clamp frame that clamps the heated flat base material that is being conveyed in the horizontal direction is placed and fixed on the pedestal that is raised to the upper position by the lifting mechanism, and then the holder is lowered to the bottom by the lifting mechanism. , lowering the flat base material to a press position close to the lower mold,
Next, the upper mold is lowered and the flat base material heated by the upper mold and the lower mold is molded! A method of forming a flat base material in terms of percentage.