KR100383345B1 - Device for and method of forming emboss on a vinyl pasteboard - Google Patents

Abstract

In the present invention, the vinyl sheet molded in the extrusion process is manufactured as a finished product through one continuous process, while in the stretching process, the vinyl sheet is simultaneously stretched horizontally and vertically using two stretching rollers and two eccentric rollers. The present invention relates to a plastic sheet forming apparatus and a molding method capable of producing a vinyl sheet having excellent drawing strength. The pattern forming apparatus includes an extruder (10) for extruding molten raw material and a semi-finished product extruded from the extruder (10). Heat is evenly distributed over the entire surface of the plastic sheet introduced through the die 14 formed into a semi-finished product in the form of a bubble 18 and the first and second take-up rollers 22 and 26 and the plurality of idle rollers 24. Heating chamber 30 for heating so as to be dispersed, stretching machine 40 for simultaneously stretching the horizontal and vertical directions of the vinyl sheet from the heating room 30 by stretching means, and discharged through the stretching machine 40. Be Consists of a plastic to ground presser 50 and the presser 50, winder 70 for winding the compressed plastic ground in a roll form in which the cold-pressed to form a pattern.

Description

DEVICE FOR AND METHOD OF FORMING EMBOSS ON A VINYL PASTEBOARD}

The present invention relates to a plastic sheet forming apparatus and a molding method, and more particularly, to manufacture a vinyl sheet molded in the extrusion process through a single continuous process, while in the stretching process two stretching rollers and two The present invention relates to a plastic sheet forming apparatus and a molding method capable of producing a vinyl sheet having excellent draw strength by simultaneously stretching the vinyl sheet horizontally and vertically using two eccentric rollers.

In the case of products made of rubber materials, such as tires, the rubber fabric and the surface of the rubber material are prevented from being damaged during the manufacturing process, and foreign substances are removed from the fabric, and a vinyl sheet is inserted between the rubber material and the rubber material to provide adhesive rubber. Use vinyl paste to prevent ash entanglement. These vinyl strips must have sufficient tension to allow them to separate well when removed from the rubber material.

In particular, in order to protect the surface of the glass fiber produced in the glass fiber production process, which is a high-tech industry, and to remove foreign substances, the surface of the vinyl sheet should be evenly distributed. Is required.

A conventional vinyl sheet manufacturing method is an embossing molding method of a vinyl sheet disclosed in Korean Patent Publication No. 87-1802 published on October 13, 1987. The embossing molding method of vinyl sheet is made by supplying the plastic sheet of the roller material to the roller through the resistance roller and then heating it with a heater so that the plastic sheet drawn from the drawing plate is compressed and equipped with a water-cooled chiller. The embossing is formed in the pressing roller through the roller, and is closely cooled with the pressing roller by the auxiliary roller.

The vinyl sheet molded by the conventional vinyl sheet forming method, including the molding method disclosed in Patent No. 87-1802, manufactures a fabric in an extrusion process, melts a resin, which is a raw material in a solid state, and produces a product. Since the ring is already formed by stretching by forcibly applying heat, there is a problem in that the already formed molecular ring is forcibly stretched to decrease the strength.

The present invention for solving such problems is to make a vinyl sheet molded in the extrusion process to a finished product through a series of one process, while stretching the vinyl sheet at the same time horizontally and vertically to create a vinyl sheet having excellent tensile strength. It is an object of the present invention to provide a molding apparatus and a molding method of vinyl sheet.

1 is a block diagram showing a molding apparatus of a vinyl sheet according to the present invention,

2 is a plan view of a vinyl sheet prepared according to the present invention,

3 is a cross-sectional view taken along the line III-III in FIG.

♣ Explanation of symbols for main part of drawing ♣

10: extruder 30: heating room

40: drawing machine 42, 44: drawing roller

46, 48: eccentric drawing roller 50: press

52: pressing roller 60: cutting roller

62: cutter 70: winder

100: vinyl mount 102: mount

104: Glyph 110: Vinyl mount roll

The molding apparatus of the vinyl sheet of the present invention for achieving the above object is an extruder for extruding molten raw material, a die for molding the semi-finished product extruded from the extruder into a bubble-shaped semi-finished product, the first and second take-up roller and A heating room for heating the vinyl sheets introduced through the plurality of idle rollers so that heat is evenly distributed over the entire surface, and a drawing machine for simultaneously stretching the vinyl sheets from the heating room in the horizontal and vertical directions by the stretching means; It is characterized by consisting of a winding machine for winding the vinyl sheet discharged through the drawing machine to form a pattern, and a winding of the rolled vinyl sheet in the form of a pattern.

In addition, the molding method of the present invention is an extrusion process of extruding the raw material by an extruder, a take-off process of taking a semi-finished product in a bubble form while passing through a die in the form of a vinyl sheet, and to maintain the drawn vinyl sheet at a constant temperature A heating step of heating in a heating room, a stretching step of stretching the heated vinyl sheet in a horizontal and vertical direction by a drawing machine, a pressing step of pressing the drawn vinyl sheet by a press to form a pattern, and a compressed vinyl sheet It is characterized by consisting of a winding step of cutting the wound to a predetermined length.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the molding apparatus and molding method of the vinyl sheet according to an embodiment of the present invention.

First, as shown in FIG. 1, when a schematic configuration of a molding apparatus and a molding method of a vinyl sheet according to the present invention is shown, an extrusion process of extruding raw materials by the extruder 10 and a bubble while passing through the die 14 are performed. (18) a take-off process for taking the semi-finished product in the form of a vinyl sheet, a heating step of heating the heated vinyl sheet in the heating room 30 to maintain the drawn vinyl sheet at a constant temperature, and a heated vinyl sheet drawing machine (40). Stretching process in the horizontal and longitudinal directions by using a cross-section), a pressing process of pressing the stretched vinyl sheet by the pressing machine 50 to form a pattern, and a winding process of cutting and winding the compressed vinyl sheet to a predetermined length. Consists of

In the present embodiment, the semifinished product extruded from the extruder 10 is transferred to the die 14 through the feed pipe 12, and then formed into a semifinished product in the form of a bubble 18 while passing through the die 14. The semi-finished product shaped in the form of bubble 18 is drawn in the form of a vinyl sheet by a first take-up roller 22 disposed at one end of the frame 16, and then the plurality of idle rollers 24 and the second take-off. It is conveyed to the heating room 30 while being further taken through the roller 26.

At this time, since the land roller has heat even in the process of passing through the second take-up roller 26, it is not necessary to heat the heating room 30 to an excessively amplified temperature, and the vinyl produced when passing through the heating room 30. The temperature of the heating room is adjusted to the appropriate temperature according to the thickness of the earth, and then the temperature of the heating room is evenly spread on the front surface of the vinyl board so that it is evenly stretched in each direction in the next stretching process.

The vinyl sheet from the heating room 30 is simultaneously stretched in the horizontal and vertical directions by the stretching means of the present invention. The stretching means employed in the present invention is disposed between the first and second stretching rollers 42 and 44 and the first and second stretching rollers 42 and 44 so as to be eccentric so as to stretch the vinyl sheet horizontally and vertically. The first and second eccentric rollers 46 and 48 are arranged.

At this time, in order to smoothly stretch the vinyl sheet, it is preferable to forcibly blow high temperature heat to the cooled vinyl sheet with a hot air blower, thereby preventing excessive stretching by the drawing plate and preventing a phenomenon in which the molecular ring is stretched. To this end, in the present invention, by using a plurality of rollers (42, 44, 46, 48) to stretch the land at the same time in the horizontal and vertical direction at the same time to be stretched naturally according to the flow of the plastic sheet conveyed to the tensile force due to deformation of the molecular ring This deterioration phenomenon was prevented.

In addition, in the present invention, the diameter of the second stretching roller 44 is larger than that of the first stretching roller 42, and the vinyl sheets conveyed at the same speed are first and second stretching rollers 42 and 44. By using the difference in the rotational force due to the difference in the diameter of the circumscribed vinyl sheet to be naturally drawn. On the other hand, the stretching in the transverse direction only affects the tensile force by extending the molecular ring only in the transverse direction, so that the first and second eccentric rollers 46 and 48 longitudinally eccentric are first and second stretching rollers 42. , 44) to stretch the vinyl sheet in the transverse and longitudinal directions at the same time to increase the tensile strength.

Subsequently, the vinyl sheet passed through the drawing machine 40 is pressed by a pressing machine 50 having a pressing roller 52 to be formed in a predetermined pattern. That is, in order to form a predetermined pattern on the surface of the plastic sheet itself, which is moved to the pressing machine 50 in the hot state through the stretching process, as the predetermined pattern is carved into the upper and lower sets of pressing rollers 52 of male and female. The vinyl sheet is formed with a predetermined pattern. The cooling liquid, which is pumped from the cooler 80 by the pumping motor 82, is supplied through the pipe 84 to the inside of the pressing roller 52, which is supplied through the liter pipe 86. By returning to the cooler 80, the pressing roller 52 is always kept in a cooled state, so that a predetermined pattern is always well formed on the vinyl sheet. The shape of the vinyl sheet 100 made through such a process is shown in FIG. 2 as an example. As shown by way of example, the vinyl sheet 100 is formed in the shape of the honeycomb 104 in succession from side to side in all directions, and the crimping portion 106 is formed softly on the boundary line of the pattern 104 to be protected afterwards. When the adhesive is fixed to the surface of the ground surface 102, which is water, it can be fixed using the crimping unit 106.

As described above, the vinyl sheet having a predetermined pattern is cut to a desired length by a cutter in the process of passing through the roller 60 and the cutter 62, and then wound and stored in a roll form by the winder 70, as described above. Similarly, while being adhered to the surface of the ground surface 102 through the crimping portion 106, the product to be protected is protected.

As such, the present invention can produce a vinyl sheet through one continuous process from extrusion of raw materials to finished products.

According to the present invention described above, while making the vinyl sheet molded in the extrusion process to a finished product through a series of one step, by stretching the vinyl sheet in the horizontal and vertical direction at the same time, a useful effect of making a vinyl sheet excellent in tensile strength There is.

Claims (4)

An extruder 10 for extruding the molten raw material, A die 14 for molding the semi-finished product extruded from the extruder 10 into a semi-finished product in the form of a bubble 18, and A heating room (30) for heating the vinyl plates introduced via the first and second take-up rollers (22, 26) and the plurality of idle rollers (24) to distribute heat evenly over the entire surface; A stretching machine 40 for simultaneously stretching the vinyl sheet from the heating room 30 in the horizontal and vertical directions by the stretching means; Compressor 50 to form a pattern by compressing the vinyl sheet discharged through the stretching machine 40, Molding apparatus for a vinyl mount, characterized in that consisting of a winder (70) for winding the vinyl sheet compressed in the compactor (50). According to claim 1, wherein the stretching means is spaced apart from the first stretching roller 42 and the first stretching roller 42 at a predetermined interval, the diameter larger than the diameter of the first stretching roller 42 A second drawing roller 44 having: And first and second eccentric rollers 46 and 48 disposed between the first and second stretching rollers 42 and 44 so as to be eccentrically arranged so as to stretch the vinyl sheet in the horizontal and longitudinal directions. Molding apparatus for vinyl sheet. The apparatus of claim 1, wherein a cutter (62) for cutting the vinyl sheet (100) at predetermined intervals is disposed between the pressing machine (50) and the winding machine (70). An extrusion process of extruding the raw material by the extruder 10, A take-off process of pulling the semi-finished product in the form of a bubble 18 into a vinyl sheet while passing through the die 14; A heating step of heating in the heating room 30 to maintain the drawn vinyl sheet at a constant temperature, An stretching step of stretching the heated vinyl sheet in the horizontal and vertical directions by the stretching machine 40; A crimping step of pressing the stretched vinyl sheet with a presser 50 to form a pattern; And a winding step of winding the compressed vinyl sheet to a predetermined length and winding the wound.