JPS63205214A - Both-side embossing of vinyl chrolide sheet employing two embossing rolls - Google Patents

Abstract

PURPOSE:To permit both-side embossing with one process, by a method wherein an infrared ray heater and two embossing rolls, forwardly rotating immediately after the heater, are arranged up-and-down and a vinyl chloride sheet, heated and softened by the infrared ray heater, is passed between the embossing rolls. CONSTITUTION:A vinyl chloride sheet 1, whose upper surface is heated by an infrared ray heater (a) to the temperature of about 140 deg.C, is embossed on the upper surface during passing through an initial embossing section, in which an embossing roll is arranged on the upper side of the sheet and a rubber roll is arranged at the lower side of the same. Thereafter, the lower surface of the sheet is heated by the infrared ray heater to the temperature of about 140 deg.C to the next embossing section; then, the sheet passes through the next embossing section, in which the rubber roll is arranged on the sheet while the embossing roll is arranged at the lower side of the sheet. The sheet passed through these two embossing sections is embossed on both surfaces. Immediately after embossing, the mating of embosses on both surfaces is adjusted by the rubber roll 3a and the rubber roll 3b. Thereafter, the sheet is cooled and cut in the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for double-sided binding of an automobile seat interior material.

(Prior Art) Vinyl chloride sheets, polyvinylidene chloride, polyamide, and other synthetic sheets with the same effect are often used as the skin of automobile interior materials. Among these, vinyl chloride sheets are used as a skin material that covers door trim base materials. In order to improve the appearance and appearance of the door trim surface, this vinyl chloride sheet has a diaphragm on one side and is bonded with a high-frequency welder so that the diaphragm is on the inside of the vehicle. The drawing of the skin material is carried out by passing the skin material through a process in which a drawing roll is placed on the top surface and a rubber roll is placed on the bottom surface, as shown in FIG. In this process, the shibori can only be attached to one side of the skin material, and products that are being cut, such as door trims that have left and right sides, have two sides of the shibori, so two storage areas had to be created, one in Furukawa and one in the left corner. .

(Problems to be Solved by the Invention) In the above-mentioned conventional technology, the cutting type can only be attached to one side of the skin material, and when this skin material is used for something with left and right sides, such as a door trim, the cutting type is similar to that of Furukawa. Cutting must be done using a separate die from the left corner, which requires a lot of man-hours to set up the cutting die, and the work-in-progress after cutting has a front and back side of the tie, so the left and right sides have to be placed separately, and a space must be created for each. I had to. Therefore, space efficiency was poor within the limited premises of the factory.

(Means for solving the problem) In the present invention, the problem was solved by performing the following steps.

(11. Two drawing surface rolls were arranged above and below, and a sheet heated and softened by an infrared heater was passed between the drawing rolls, so that drawings were applied to both sides of the sheet.

(2) For squeezing with the squeezing roll on the top and the rubber roll on the bottom, the sheet is passed through the section and the squeezing roll is on the top and the rubber roll is on the bottom. As a result, we applied diaphragms to both sides of the sheet, and immediately after that, we used a rubber roll to match the texture of the diaphragms on both sides.

(Function) The number of man-hours required for tying has been greatly reduced because it is now possible to squeegee both sides of the vinyl chloride sheet in one step.

Since there is no longer a front and back side of the diaphragm, there is only one place to store it, making the work area larger and improving work efficiency.

(Example 1) As a skin material that can be used in the present invention, vinyl chloride sheet,
Polyvinylidene chloride, polyamide and other synthetic resin sheets with the same effect are used. An embodiment of the present invention will now be described with reference to the drawings. FIG. 2 shows an embodiment of the tightening process of the present invention. Here, a vinyl chloride sheet having a thickness of 0°15 to 0.3H was used as the skin material.

In Figure 2, a vinyl chloride sheet 1 whose both sides are heated to about 140"C by an infrared heater a is passed between squeeze rolls 2 arranged above and below, so that both sides of the vinyl chloride sheet are squeezed. 6 is a double-sided embossed vinyl chloride sheet that has been squeezed by a squeeze roll.The sheet is then cooled and sent to the next process.

(Example 2) In Fig. 3, the top surface of the sheet is heated approximately 140 degrees by infrared heater a.
The vinyl chloride sheet 1 heated to 0.degree. C. is crimped on the upper surface of the sheet in the first embossed section where a squeegee roll is placed on the upper side and a rubber roll is placed on the lower side. Thereafter, the sheet passes through a cresting step where the lower surface of the sheet is heated to about 140° C. with an infrared heater and a rubber roll is placed on the upper side and a squeezing roll is placed on the lower side until the next cresting section.

The sheet that has passed through these two diaphragms has diaphragms on both sides. Immediately after that, rubber roll 3a and rubber roll 3b
Match the texture of the shibori on both sides. The sheet is then cooled and cut in the next step.

In this embodiment, a squeeze roll is used, but a rubber squeeze roll may be used instead of the squeeze roll. The core of the rubber squeeze roll is made of metal, but the squeeze on the surface of the roll is made of silicone rubber and is made of a tape with a transferred pattern attached to the core.

(Effects of the Invention) According to the present invention, a double-sided drawn vinyl chloride sheet can be manufactured in the same process, resulting in a significant reduction in the number of man-hours.

In addition, when this sheet is used for items with left and right sides, such as door trims, there is no distinction between the left and right parts of the work in progress (as it can be placed all in one place, so it is easy to use in the limited area of the factory). There is no need to waste space anymore.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 shows the current single-sided embossed process. Second
The figure and FIG. 3 are examples of the double-sided squeezing process of the present invention. a... Infrared heater... Vinyl chloride sheet 2... Squeezing rolls 3a, 3b
... Rubber roll 4 ... Vinyl chloride sheet with a crest on one side 5 ... Squeezing 6 ... Vinyl chloride sheet with a crest on both sides Procedural amendment (method) May 6, 1988 1, Indication of the case 1988 patent Application No. 38665 2, Title of the invention: Method for double-sided squeezing of vinyl chloride sheets using two squeezing rolls 3, Relationship to the case of the person making the amendment Patent applicant address: 1-4 Kamimaezu, Naka-ku, Nagoya, Aichi Prefecture number 5 name
Name: Hayashi Telempu Co., Ltd. 6 Contents of amendment As per the engraving and attached sheet of the drawing originally attached to the application (no change in content)

Claims (2)

[Claims] (1) An infrared heater and two squeezing rolls that rotate normally immediately after the infrared heater are arranged above and below, and a vinyl chloride sheet heated and softened by the infrared heater is passed between the squeezing rolls, thereby squeezing both sides. Double-sided tightening method for vinyl chloride sheets characterized by (2) The top surface of the vinyl chloride sheet is heated and softened using an infrared heater, and the vinyl chloride sheet is placed in the squeezing section where a normally rotating squeezing roll is placed above the sheet and a normally rotating rubber roll is placed below the sheet. Put a diaphragm on the top surface through the
After that, the bottom surface of the vinyl chloride sheet, which has been squeezed only on the top surface, is heated and softened using an infrared heater, and then a rubber roll that rotates normally is placed above the sheet, and a squeeze roll that rotates normally is placed below the sheet. A vinyl chloride sheet characterized by first passing a vinyl chloride sheet with a diaphragm on the top surface only through the section to apply a diaphragm on the bottom surface, and then placing a rubber roll immediately after that to match the texture of the diaphragm on both sides. Double-sided tightening method