TW548189B - A hydraulic manufacture method of plastic knurl floor tiles - Google Patents

Abstract

A hydraulic manufacture method of plastic knurl floor tiles is of how to heat and press the floor tiles gradually to make the air inside the tiles swell and be pressed out gradually, to press patterns on the tiles with pattern depth not more than 0.4 mm when the tiles are heated up to the melting temperature, and to buffer the pressure and temperature for mold removal. The characteristics of this plastic knurl floor tiles are with clear thread patterns and without visible bubbles on the surface.

Description

548189

<Technical Field>, its Ϊ Ϊί: t The method of producing plastic embossed stele by oil pressure method is heated in the process of preparing fortresses, supplemented by a gradual increase = Li Jeduo for it mountain. Inside air It expands as the temperature rises, and it is increased by ^^^. Also, when embossing, control its embossing depth not to be greater than that of embossed plastic. * Boarding table shows plastic embossed monuments with obvious dust patterns and no visible air bubbles. By. & 〈Existing Technology〉 In the field of interior decoration, plastic monuments have become a substitute for tradition in recent years due to the advantages of light weight, easy construction, and colorful patterns, coupled with the advantages of rapid manufacturing and low cost. Stone or ceramic monuments are necessary construction and decoration materials; with the extensive use of plastic monuments ... plastic embossed monuments with deep concave and convex patterns on the surface have become the darlings of this type of monuments. This type of plastic embossed stele is divided into two types, one is plain and the other is colored. The former is commonly used for road blind guides or other factories or anti-slip paving tiles on wet ground. These two types of plastic steles The surface of each has uneven grains; the latter is a pattern with unevenness on the surface of the monument, which has various colors. Because the plastic embossed floor tiles have the aforementioned classification, the production methods are also different. Because the plain embossed stele is formed of a single material, its embossing can be directly pressed into oil with oil pressure. &Gt; 'But color castle The composition of Huadi Stele is a white middle leather layer and an upper printed leather layer on a black base material. Therefore, the impact embossing of the oil pressure method 'the air between the various layers cannot be smoothly discharged and it is easy to pass from the surface of the monument. The perspective of the residual air bubbles has a significant impact on the aesthetics of the stele. Therefore, the production of colored plastic embossed steles is now rolled by rolling.

Page 4 548189 'Shangneng's stele is rolled on the stele. The flower stele and the unpressed are absolute to beautify. The various layers are not caused by bubbles. The colored plastic surface can be seen because of its embossing. The anti-slip and dry indoor and anti-slip effect on the surface of the monument phase contains gas residues to affect the bubbles of the Mejiao embossed monuments, but they are shallow and the edges are the same, and the other ability is poor. For the purpose of the area, Description of the invention (2 &gt; Because the extrusion of a part of the embossing by roll forming makes it possible to observe or reduce the stickiness of each layer, although it avoids the ground produced by hydraulic production and the multiple rounded corners produced by rolling, so The problem is not carefully observed is that its embossing is not enough, which also makes this type of floor tiles only hope that embossing with colored plastic is difficult for both fish and bear's paw. <Solution technology> ' It is better to be different from the above. It is based on the above two main conditions to enable the meeting to have the above-mentioned shortcomings smoothly; to enable it to be embossed and slowly pressed on the tombstone, and the clothes are then simultaneously reached. Of the plastic stele is heated to the pressure Squeeze out, leaving only small air bubbles visible, and this side is transparent, so it does not affect the formation of the force at the same time. The resulting plastic pressure may obviously be able to lay the monument. Or rolling color engaged in color but At this stage, the plastic embossing method is described in two other ways, but the color plastic embossed stele produced by it is changed. In the process of the present invention, a void force between the various layers of the stele is gradually used during the utilization process. When the stone monument is squeezed out to make a texture, each of them is affixed with a small number of small air bubbles. The embossing molding sounds the beauty of the stone monument. It is the same as the method of plastic floor tiles. Outside temperature; if it ’s difficult to pass between layers, the monoliths are embossed in this way. Each of the invention controls the production without the high pressure of plastic stele to swell. The large bubbles in the plastic are all naked eyes. Residue inside the floor surface

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548189 V. Description of the invention (3) The micro-bubbles will not affect the adhesion of each layer of the monument. In addition to the above-mentioned method, the present invention controls the embossing depth to not more than (inclusive) 0.4 mm at the same time as embossing. In addition to obtaining deeper embossing by rolling molding, it can also The thin printed layer on the surface of the plastic floor tile is protected from being damaged by heat pressing. More importantly, the fixed depth embossing also has a needless producer that reduces bubbles. The following is a description of the preferred implementation process of the present invention; The first figure is a flowchart of the present invention. <Description of the preferred implementation process> As shown in the flowchart of the present invention in the first figure, the production process of the present invention includes the following steps: First, the colored floor tiles are sent to an oil pressure room at room temperature 3 5 X: Stack and apply a constant pressure of 2 G ~ 2 5 kg / 〇1 ^ on the surface of the floor tile to be embossed; then gradually increase the temperature of the oil pressure chamber from 35 ° C, and the pressure is gradually increased. The operating conditions are controlled by the computer so that they grow synchronously with each other for the first stage of squeezing and exhausting; the final temperature and final pressure of this stage are set to 100 t and 60 kg / cm2, and the operation lasts 15 minutes Continue the previous stage, and then gradually increase the temperature of the oil pressure chamber upwards, while the pressure also gradually increases, and set its final temperature and pressure at 120 ° C and 100 kg / 0 / to continue the second stage Squeeze the exhaust for 5 minutes; continue to increase the temperature of the oil pressure chamber to 1 42 t, increase the pressure to 1 25 蛣 / ⑽2, and perform the ink at a fixed depth not greater than (inclusive) 0 · 4 mm The dive lasted 5 minutes, and the temperature was gradually reduced from 142 t to 100 t and the pressure was 125 kg. / c / slowly lowered to 60 kg / cmZ for buffered pressure relief, this phase lasted 5 minutes; at the end, the temperature and pressure were lowered to 35 ° C and 25 kg / 0 /, respectively, to perform cooling and demoulding

548189

In the above steps, the degree of squeezing and exhausting in the second stage is performed. The air bubbles remaining in the layers of the stele are heated and expanded. Huya 2 squeezes out of the stele, but it can be squeezed by different pressures. Surface, bubbles of different sizes, due to A, with increasing temperature and increasing pressure, the bubbles at different levels can be gradually increased while being squeezed out with the most appropriate pressure to achieve the effect of deep degassing; this and The traditional oil pressure method is different from the method of heating the monument to a hot melt state and rapidly pressing it down with high pressure, because the latter can not be discharged in the future under the action of high temperature and rapid pressure, and it contains residual bubbles that can be visually recognized by the naked eye. . The embossing of a certain depth is adopted in another step of the present invention, the purpose of which is to avoid the embossing of the printing film layer on the surface of the plastic monument caused by excessive embossing, which is not larger than (including) 0.4 mm embossing. Deep can still reduce the generation of air bubbles in addition to the distinctive embossed edges that are unique to oil embossing, because excessively deep embossing tends to accumulate on the sides of the lines. Residual bubbles that may be visually recognized by the naked eye; (Inclusive) The embossing depth of 0.4 bandit is the depth of embossing between traditional oil pressure and rolling, which can already be seen as a three-dimensional effect. In addition, in the present invention, the operation of gradually reducing the temperature and gradually releasing the pressure after embossing is used to prevent the formation of bubbles due to the rapid environmental changes that loosen the layers again. Through the colored plastic embossed tombstone made by the present invention, there will be no bubbles remaining on the surface, and the embossing is clear and three-dimensional, which is better than the current texture of plastic embossed floor tiles produced by rolling. # 'One more step towards the realm of replacing natural stone or ceramic stele with plastic stele

548189 V. Description of the invention (5) The above-mentioned steps and operating conditions at each stage are just to illustrate the preferred implementation process and data listed in the present invention. Anyone who is familiar with the art in this field is under the technical spirit of the present invention. And changes shall be within the scope of the patent application of the present invention as described later

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Claims (1)

548189 6. Scope of patent application1. A method for manufacturing plastic embossed stele by oil pressure, which includes the following steps: (a) Place the unembossed floor tile in a hydraulic chamber at room temperature 3 5 ° C, and place it on the floor. Apply a constant pressure of 20 to 25 kg / cmZ on the surface of the monument; The first stage of squeezing and exhausting took 15 minutes; (c) The temperature gradually increased from 100 to 120 t, and the pressure gradually increased from 60 kg / 〇1 ^ to 100 kg / cmz. Extruding and exhausting in two stages, the time is 5 minutes; (d) The temperature is increased to 142 ° C, and the pressure is adjusted to 125 kg / cmz, and the constant depth embossing operation is performed, and the time is 5 minutes; (e) The temperature is changed from 142 t: Gradually reduced to 100t: The pressure was gradually reduced from 125 kg / 〇 / gradually to 60 kg / cm2, and the pressure was buffered and released for 5 minutes; (f) The brewing degree was gradually reduced from 100C to 35. (3. The pressure is gradually adjusted from 60 kg / cmz to 25 kg / cmz, and the mold is cooled down. 2 · If the method of claim 1 of the patent scope is declared, the embossing depth of the monument is less than or special to 0. 4 mm. 3. The method according to item 1 of the patent application range, wherein the temperature and pressure of the operation except the step (a) are controlled so that the growth and reduction are synchronized with each other.