JPS6216126A - Forming of sheet material - Google Patents

Abstract

PURPOSE:To contrive to eliminate molds and a process for packaging by a method wherein packaging of a product by a method wherein packaging cover and forming of the product are allowed to be done simultaneously. CONSTITUTION:A molding body 11 consists of a synthetic resin stock sheet 12, out of which a product is formed, and a vertical pair of synthetic resin packaging sheets 13 and 14, which are put on and beneath the stock sheet 12 in such a manner as to pinch the stock sheet 12. Firstly, the above-mentioned molding body 11 is heated up to its softening temperature by heaters 15 and 16. Secondly, the molding body 11 softened by the heaters 15 and 16 is fed in a thermoforming mold consisting of a pair of molds 17 and 18 so as to be pressed with both the molds 17 and 18 in order for the molding body 11 to be molded under pressure into a desired shape. By means of said forming means, the stock sheet 12 is formed into the predetermined product 12' and at the same time the packaging sheets 13 and 14 are adhered in the closely contact state on both sides or front and back surfaces of the product 12' so as to pack age the product 12' by the packaging sheets 13 and 14.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention is directed to a product made of a synthetic resin sheet material, such as a fender protector for an automobile or a windshield for an automobile, and a cover for wrapping this product at the same time. The present invention relates to a method of forming a sheet material so that it can be formed and packaged with the cover at the same time.

[Background of the invention]

Conventionally, when molding the above-mentioned product and packaging the product, for example, a synthetic resin product 1 having a shape as shown in FIG. The above-mentioned product l is molded using respective molds by vacuum forming or length-morphing, etc., and then, during the packaging process, the above product l is packaged with a pair of upper and lower covers 2.3, and the product is shipped. It is.

In this way, in the past, the covers 2 and 3 for packaging the product 1 were molded in a separate process from the molding of the product 1 using separate molds. Since separate molds are required to mold the covers 2 and 3, and these molds must be used to separately mold the C-stage product 1 and the covers 2 and 3, the product and the cover must be molded separately. Each mold for molding and each molding process using those molds are required, which increases the mold cost and production cost.Furthermore, when packaging the product 1, the product 1 is wrapped in a cover 2, This requires a packaging step in step 3, which increases the labor cost for packaging and increases the product cost.

[Purpose of the invention]

The present invention has been made by focusing on such conventional problems, and allows the product to be packaged with a packaging cover at the same time as the product is molded, thereby reducing the number of molds and packaging steps. The purpose of this invention is to provide a method for forming sheet materials.

[4 Embodiments of the Invention] The present invention will be described in detail below based on embodiments shown in FIGS. 1 and 2.

Reference numeral 11 denotes a molded body, and this molded body 11 includes a synthetic resin material sheet 12 to be molded into a product, and a pair of upper and lower synthetic resins that are placed on the front and back sides of the material sheet 12 so as to sandwich this material sheet 12. The molded body 11' (j) is first heated with a heater 15°16 to its softening temperature.
, 16 is molded into a pair of molds 17 and 1.
The molded product 11i is supplied into a thermoforming mold composed of a thermoforming mold 8, and is pressurized by both molds to form the molded product 11i into a desired shape. By this forming means, the material sheet 12 is formed into a predetermined product 12', and at the same time, the material sheet 12 is formed into a predetermined product 12'.
Packaging sheets 13 and 14 are closely adhered to both the front and back sides of the product 12 made of the packaging sheets l 3 and 14.
’ packaging. Therefore, this molded body 11
If the product is released from the mold after molding, a product 12' covered and packaged with packaging sheets 13 and 14 is obtained, thereby reducing the number of molds and eliminating the packaging process. In the above embodiment, molding using a thermoforming mold was described, but for example, a vacuum molding mold 18 having a vacuum circuit 19 may be used.
The molded body 11 may be vacuum-formed using a vacuum molding method.

Furthermore, similar results can be obtained even if the vacuum circuit 19 is provided in the mold 17.

[Summary of the invention]

As described above, the present invention provides a material sheet 12 for product molding made of a resin material, a packaging sheet 13.1 made of a resin material, and a packaging sheet 13.1 made of a resin material.
4 to form a molded body 11, and this molded body is placed and molded in a mold such as a vacuum mold or a press mold.

〔Effect of the invention〕

Therefore, according to this sheet material forming method, the material sheet 1
The raw material sheet 12
Since the packaging sheets 13 and 14 are attached and wrapped on the front and back sides of the molded product made of the material sheet 12 at the same time as the molding, the core product can be packaged simultaneously with the molding of the product.

Therefore, unlike in the past, there is no need for a mold for forming a packaging material and a packaging operation for wrapping a product with a packaging material, and as a result, the product cost can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a molding method according to the present invention, FIG. 2 is an explanatory diagram showing a molded article and its heating and softening during rhodium, and FIG. 3 is an explanatory diagram of a conventional example. 11... Molded object 12... Material sheet 12
'...Product 13.14...Packaging sheet 15.16...Heater 17.18...Mold 19...Vacuum circuit Figure 3

Claims (1)

[Claims] A material sheet (12) for product molding made of resin material,
It is characterized in that it is sandwiched between packaging sheets (13) and (14) made of resin material to form a molded body (11), and this molded body is placed in a mold such as a vacuum mold or a press mold and molded. Forming method for sheet materials.