阅读说明：本技术 提高压花辊凹纹压延深度的压花装置、压花玻璃压延方法 (Embossing device for improving embossing roller concave line calendering depth and embossing glass calendering method ) 是由 初文静 林俊良 林金汉 林金锡 于 2021-10-26 设计创作，主要内容包括：本发明涉及玻璃加工技术领域,尤其涉及一种提高压花辊凹纹压延深度的压花装置,包括压花辊,压花辊的外圆周面上设置有多个用于在热熔压花玻璃上形成凸纹的凹花纹,相邻两个凹花纹的节点处设置有排气槽,排气槽设置在凹花纹的侧壁上,排气槽的深度与凹花纹的深度相同,沿排气槽长度方向相邻的两个排气槽的中心相连接的线段均在同一圆周线A1上。本发明还提供了一种压花玻璃压延方法,可以改善压花玻璃的凹纹深度问题,并且还能避免玻璃凹花纹中留有气泡的问题,从而提高压花玻璃的花纹质量。(The invention relates to the technical field of glass processing, in particular to an embossing device for improving the embossing depth of embossing grooves of an embossing roller, which comprises the embossing roller, wherein a plurality of concave patterns used for forming convex patterns on hot-melt embossing glass are arranged on the outer circumferential surface of the embossing roller, exhaust grooves are arranged at the nodes of two adjacent concave patterns, the exhaust grooves are arranged on the side walls of the concave patterns, the depth of the exhaust grooves is the same as that of the concave patterns, and line segments connected with the centers of two adjacent exhaust grooves in the length direction of the exhaust grooves are on the same circumferential line A1. The invention also provides a method for rolling the patterned glass, which can improve the depth of the concave patterns of the patterned glass and avoid the problem that air bubbles are left in the concave patterns of the glass, thereby improving the pattern quality of the patterned glass.)

1. The embossing device for improving the embossing depth of the embossing roller intaglio embossing comprises an embossing roller (1), wherein a plurality of intaglio patterns (2) for forming embossed patterns on hot-melt embossing glass (5) are arranged on the outer circumferential surface of the embossing roller (1), and the embossing device is characterized in that: and the air exhaust grooves (3) are arranged at the nodes of two adjacent concave patterns (2), the air exhaust grooves (3) are arranged on the side walls of the concave patterns (2), the depth of the air exhaust grooves (3) is the same as that of the concave patterns (2), and line segments connected with the centers of two adjacent air exhaust grooves (3) in the length direction of the air exhaust grooves (3) are all on the same circumference A1.

2. The embossing apparatus for increasing the calendering depth of an embossing roll deboss as recited in claim 1, wherein: the exhaust grooves (3) are connecting channels between the two concave patterns (2), and at least two exhaust grooves (3) of each concave pattern (2) are respectively communicated with two adjacent concave patterns (2).

3. The embossing apparatus for increasing the calendering depth of an embossing roll deboss as recited in claim 1, wherein: the circumference A1 is located in a plane P, the surface of the hot-melt embossed glass (5) is a plane Q, an included angle a between the plane P and the plane Q is larger than 0 degree and smaller than or equal to 90 degrees.

4. The embossing apparatus for increasing the calendering depth of an embossing roller deboss as recited in claim 3, wherein: the cross section of the exhaust groove (3) is one of a rectangle, a triangle or an arc.

5. The embossing apparatus for increasing the calendering depth of an embossing roll deboss as recited in claim 1, wherein: the ratio range of the width of the exhaust groove (3) to the width of the concave pattern (2) is as follows: 1: 30-1: 5.

6. An embossing glass calendering method using the embossing device for increasing the calendering depth of the intaglio of the embossing roller as recited in any one of claims 1 to 5, wherein: the method comprises the following steps:

s1, weighing the following raw materials in percentage by mass: 71% of SiO2, and Na 2O: 13 percent of Al2O3, 1.25 percent of CaO, 8.95 percent of MgO, 4 percent of K2O, 1.04 percent of CaO, and then mixing the weighed raw materials;

s2, uniformly mixing the weighed raw materials, conveying the mixture to a ball mill for ball milling, and ball milling the raw materials to obtain powder with the particle size of 100-200 meshes;

s3, adding the powder obtained in the step S2 into a glass melting furnace, melting in the glass melting furnace, adjusting the temperature in the glass melting furnace, enabling the hot-melt patterned glass (5) to flow out of an overflow port of the glass melting furnace, and cooling the hot-melt patterned glass (5) from the overflow port to an embossing roller (1) to obtain a plastic state with a fixed shape;

s4, enabling the embossing roller (1) to rotate to drive hot-melt embossing glass (5) to move forwards, enabling the hot-melt embossing glass (5) to enter the concave patterns (2) in the forward moving process, discharging air in the concave patterns (2) along the air discharge grooves (3), discharging the air to the outflow side of the hot-melt embossing glass (5), enabling the hot-melt embossing glass (5) to fill the whole concave patterns (2), enabling the hot-melt embossing glass (5) to be gradually cooled in the moving process, forming patterns on the glass, and carrying out calendaring molding on the embossing glass;

s5, after being rolled and formed, the patterned glass enters a degeneration kiln for annealing, so that the patterns on the patterned glass are better formed;

and S6, detecting, cutting and boxing the formed patterned glass.

7. The patterned glass calendering method of claim 6, wherein: in the step S1, before the raw materials are mixed, the raw materials are respectively crushed into particles with the particle size of 0.2-1.2 mm.

8. The patterned glass calendering method of claim 6, wherein: in the step S3, the melting temperature of the glass raw material in the glass kiln is 1500-1600 ℃, the melting time is 30-40 min, and the adjusting temperature of the temperature adjusting stage after melting is 1200-1300 ℃.

9. The patterned glass calendering method of claim 6, wherein: and in the step S3, when the surface of the hot-melt embossed glass (5) at the overflow port reaches 80-100 mm, the hot-melt embossed glass (5) flows out from the overflow port of the glass melting furnace.

10. The patterned glass calendering method of claim 6, wherein: the annealing temperature in the annealing kiln in the step S6 is 400-600 ℃, and the annealing time is 20 min.

Technical Field

The invention relates to the technical field of glass processing, in particular to an embossing device for improving the calendering depth of embossing roller concave patterns and an embossing glass calendering method.

Background

At present, the figured glass is also called as figured glass and is widely applied to indoor partitions, door and window glass, bathroom glass partitions, solar power generation assembly protective cover plates and the like. The surface of the figured glass is pressed with various patterns with different depths, and due to the uneven surface, light rays are diffused when passing through, so that when an object on the other surface is seen from one surface of the glass, the object image is blurred, and the characteristic of light transmission and non-perspective of the glass is formed. In addition, the surface of the patterned glass has various patterns such as squares, dots, diamonds, strips and the like, so the patterned glass with good artistic decoration effect is prepared by adopting a rolling process, the hot-melt patterned glass passes through a pair of water-cooled rollers and is drawn to an annealing kiln along with the rotation of the rollers, and the surface of the roller has concave-convex patterns, thereby the patterned glass with patterns on one side or two sides is prepared.

In the rolling process of the embossing roller with the concave pattern structure, because the time for hot-melt embossed glass to flow into the embossing roller is short in the rotating process of the embossing roller, air in the concave patterns of the embossing roller only occupies partial space inside the concave patterns, the hot-melt embossed glass is difficult to completely flow into the concave patterns of the embossing roller, the depth of the prepared glass patterns is relatively shallow, the depth of the patterns influences the perspective of the embossed glass, and when the glass patterns are shallow, the perspective of the glass is relatively strong, and the visual line blocking effect is poor.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the invention provides an embossing device and an embossing glass calendering method for improving the embossing roller concave pattern calendering depth, which can improve the concave pattern depth of embossing glass and can avoid the problem of air bubbles left in the glass concave patterns, thereby improving the pattern quality of the embossing glass.

The technical scheme adopted by the invention for solving the technical problems is as follows: the embossing device comprises an embossing roller, wherein a plurality of concave patterns used for forming convex patterns on hot-melt embossing glass are arranged on the outer circumferential surface of the embossing roller, vent grooves are formed in the nodes of the adjacent concave patterns, the vent grooves are formed in the side walls of the concave patterns, the depth of each vent groove is the same as that of each concave pattern, and line segments connected with the centers of two adjacent vent grooves in the length direction of each vent groove are on the same circumference A1.

Furthermore, the exhaust groove is a connecting channel between two concave patterns, and at least two exhaust grooves of each concave pattern are respectively communicated with two adjacent concave patterns.

Further, the circumferential line A1 is located in a plane P, the surface of the hot-melt embossed glass is a plane Q, an included angle a between the plane P and the plane Q is larger than 0 degree and smaller than or equal to 90 degrees.

Further, the cross-sectional shape of the exhaust groove is one of a rectangle, a triangle, or an arc.

Further, the range of the ratio of the width of the exhaust groove to the width of the concave pattern is as follows: 1: 30-1: 5.

The invention also provides an embossing glass rolling method, which uses the embossing device for improving the concave embossing rolling depth of the embossing roller, and comprises the following steps:

s1, weighing the following raw materials in percentage by mass: SiO2₂:71％，Na₂O：13％，Al₂O₃:1.25％，CaO:8.95％，MgO:4％，K₂1.04 percent of O, and then mixing the weighed raw materials;

s2, uniformly mixing the weighed raw materials, conveying the mixture to a ball mill for ball milling, and ball milling the raw materials to obtain powder with the particle size of 100-200 meshes;

s3, adding the powder obtained in the step S2 into a glass melting furnace, melting in the glass melting furnace, adjusting the temperature in the glass melting furnace, enabling the hot-melt embossed glass to flow out of an overflow port of the glass melting furnace, and cooling the hot-melt embossed glass from the overflow port to an embossing roller to form a plastic state with a fixed shape;

s4, enabling the embossing roller to rotate to drive the hot-melt embossing glass to move forwards, enabling the hot-melt embossing glass to enter the concave patterns in the process of moving forwards, discharging air in the concave patterns along the exhaust duct, discharging the air to the outflow side of the hot-melt embossing glass, enabling the hot-melt embossing glass to be full of the whole concave patterns, gradually cooling the hot-melt embossing glass in the moving process, forming patterns on the glass, and performing calendaring molding on the embossing glass;

s5, after being rolled and formed, the patterned glass enters a degeneration kiln for annealing, so that the patterns on the patterned glass are better formed;

and S6, detecting, cutting and boxing the formed patterned glass.

Further, in the step S1, before the raw materials are mixed, the raw materials are respectively pulverized into particles having a particle size of 0.2 to 1.2 mm.

Further, in the step S3, the melting temperature of the glass raw material in the glass kiln is 1500-1600 ℃, the melting time is 30-40 min, and the adjusting temperature of the temperature adjusting stage after melting is 1200-1300 ℃.

Further, in the step S3, when the overflow port hot-melt embossed glass surface reaches 80mm to 100mm, the hot-melt embossed glass flows out from the overflow port of the glass melting furnace.

Further, the annealing temperature in the annealing kiln in the step S6 is 400-600 ℃, and the annealing time is 20 min.

The invention has the advantages that the vent grooves are arranged on the concave patterns of the embossing roller, so that in the process of rolling and manufacturing the embossed glass, the hot-melt embossed glass flows into the concave patterns on the embossing roller in the rotation process of the embossing roller, and the air in the concave patterns is discharged along the vent grooves under the extrusion action of the hot-melt embossed glass, thereby avoiding the problem that the hot-melt embossed glass is difficult to fill the whole concave patterns due to the fact that the air occupies the space of the concave patterns, and also avoiding the problem that air is left in the concave patterns to cause bubbles after the glass is formed.

The invention sets the relationship between the direction of the exhaust groove and the moving direction of the hot melting embossing glass, the angle a through plane P and plane Q is set to a range greater than 0 ° and less than or equal to 90 °, angle a is preferably 90 °, in the moving process of the hot-melt embossing glass, the hot-melt embossing glass has the processes of flowing in and flowing out of the embossing concave patterns, when the hot-melt embossing glass flows into the concave patterns, the air in the indentation in the embossing roller moves upward within the vent grooves, along circumferential line a1, exits the vent grooves, thereby facilitating the air discharge, the direction of the air discharge groove has great influence on the air discharge in the flowing-in and flowing-out process of the hot-melt embossing glass, if the direction of the air discharge grooves is opposite to the flowing direction of the hot-melt embossing glass, the air in the concave patterns is difficult to discharge during the process of flowing the hot-melt embossing glass into and out of the concave patterns of the embossing roller.

In order to ensure that the arrangement of the exhaust groove can not influence the pattern and the grain effect of the integrally formed embossed glass, the ratio range of the width of the exhaust groove to the width of the concave pattern is set to be 1: 30-1: 5, the width of the exhaust groove has great influence on the exhaust effect, because in the calendering process, the contact time of the hot-melt embossed glass and the embossing roller is short, therefore, the ratio of the width of the exhaust groove to the width of the concave pattern is too small, the gas in the concave pattern can not be exhausted in the effective contact time of the hot-melt embossed glass and the embossing roller, if the ratio of the width of the exhaust groove to the width of the concave pattern is too large, the whole grain effect and the pattern of the concave pattern can be influenced, and therefore, the ratio range of the width of the exhaust groove to the width of the concave pattern is set as follows: 1: 30-1: 5, and the exhaust effect of the exhaust groove in a short time when the hot-melt embossed glass is also in contact with the embossed pattern can be enhanced under the condition that the overall grain effect and the pattern of the concave pattern are not influenced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the structure of an embossing apparatus according to an embodiment of the present invention.

Fig. 2 is an enlarged view at B in fig. 1.

FIG. 3 is a schematic diagram illustrating an angle between plane P and plane Q according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the most preferred angle between plane P and plane Q in an embodiment of the present invention.

Fig. 5 is a schematic plan view of the circumferential side of the embossing roll after being expanded in the embodiment of the present invention.

FIG. 6 is a schematic flow diagram of the method of calendering patterned glass in accordance with the present invention.

In the figure: 1. an embossing roll; 2. concave patterns; 3. an exhaust groove; 4. a support roller; 5. hot-melting patterned glass;

the moving direction of the hot-melt patterned glass is K; the width of the exhaust groove is D1; the width of the indentation pattern is D2; the flowing direction of the gas in the concave patterns is m; the line segment formed by connecting the exhaust grooves along the length direction is A1; the plane where the line segment A1 is located is a plane P; the plane of the hot-melt embossed glass is a plane Q; the angle between plane P and plane Q is a.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 5, the embossing device for increasing the calendering depth of the intaglio of the embossing roller according to the present invention comprises an embossing roller 1 and a supporting roller 4, wherein the supporting roller 4 is used for supporting the embossing roller 1 and maintaining the plane of the glass, the embossing roller 1 is used for rolling a single-sided stripe or pattern, or the supporting roller 4 and the embossing roller 1 are simultaneously operated to roll a double-sided stripe or pattern, a plurality of intaglio patterns 2 for forming a relief pattern on the hot-melt embossed glass are arranged on the outer circumference of the embossing roller 1, a concave pit is arranged at the area f, vent grooves 3 are arranged at the nodes of two adjacent intaglio patterns 2, the vent grooves 3 are arranged on the side walls of the intaglio patterns 2, the depth of the vent grooves 3 is the same as that of the intaglio patterns 2, and the line segments connected with the centers of the two adjacent vent grooves 3 along the length direction of the vent grooves 3 are all on the same circumference a 1. Line segments bc, cd, and de, which are composed of the centers of two adjacent exhaust grooves 3 in the length direction of the exhaust grooves 3, are all on the same circumferential line a 1. The exhaust grooves 3 are connecting channels between the two concave patterns 2, and at least two exhaust grooves 3 of each concave pattern 2 are respectively communicated with the two adjacent concave patterns 2.

According to the invention, the vent grooves 3 are arranged on the concave patterns of the embossing roller 1, in the process of rolling and manufacturing the embossed glass, in the process of rotating the embossing roller 1, the hot-melt embossed glass 5 flows into the concave patterns 2 on the embossing roller 1, and the air in the concave patterns 2 is discharged along the vent grooves 3 under the extrusion action of the hot-melt embossed glass 5, so that the problem that the whole concave patterns 2 are difficult to fill with the hot-melt embossed glass 5 due to the fact that the air occupies the space of the concave patterns 2 is avoided, and the problem that air bubbles exist after the glass is formed due to the fact that the air is left in the concave patterns 2 is also avoided.

The circumferential line a1 is located in a plane P, the surface of the hot-melt embossing glass 5 is a plane Q, the surface is the processing surface of the hot-melt embossing glass 5, the moving direction of the hot-melt embossing glass 5 is indicated by K, the included angle between the plane P and the plane Q is a, and the included angle a ranges from more than 0 ° to less than or equal to 90 °. The cross-sectional shape of the exhaust groove 3 is one of a rectangle, a triangle, or an arc.

By providing the relationship between the direction of the air vent grooves 3 and the moving direction of the hot-melt embossed glass 5, by setting the range of the angle a between the plane P and the plane Q to be greater than 0 ° and less than or equal to 90 °, the angle a is preferably 90 °, the moving direction of the hot-melt embossed glass 5 during the movement of the hot-melt embossed glass 5 is the direction indicated by K, the hot-melt embossed glass 5 is moved while the embossing roller 1 is rotated, the hot-melt embossed glass 5 has the flow into and out of the embossed patterns 2, the air in the embossed patterns 2 on the embossing roller 1 moves upward along the circumferential line a1 in the air vent grooves 3 while the hot-melt embossed glass 5 flows into the embossed patterns 2, and the air in the embossed patterns 2 is discharged from the air vent grooves 3 into the adjacent embossed patterns 2 not filled with the hot-melt embossed glass 5 when the hot-melt embossed glass 5 flows into one of the embossed patterns 2, air flows between the concave patterns 2 on the circumferential surface of the embossing roller 1 along the direction m, after the air enters the adjacent concave patterns 2 from one concave pattern 2, when the hot-melt embossing glass 5 flows into the adjacent concave patterns 2, the air in the concave patterns 2 is continuously discharged into the next concave pattern 2, and because the circumferential side surface of the embossing roller 1 is a cylindrical surface, the air in the concave patterns 2 can circularly flow along the circumferential side surface of the embossing roller 1, namely along the circumference where the circumferential line A1 is located in the drawing in the process of circulating the hot-melt embossing glass 5 into the concave patterns 2. The direction of the vent grooves 3 has a large influence on the venting during the inflow and outflow of the hot-melt embossed glass 5. If the direction of the air vent grooves 3 is opposite to the direction in which the hot-melt embossed glass 5 flows out, it may be difficult for the air in the debosses 2 to be vented during the flow of the hot-melt embossed glass 5 into and out of the debosses of the embossing roller 1.

The width of the air discharge groove 3 is D1, the width of the concave pattern 2 is D2, and the ratio range of the width D1 of the air discharge groove 3 to the width D2 of the concave pattern 2 is as follows: 1: 30-1: 5. In order to ensure that the arrangement of the exhaust groove 3 does not influence the pattern and the grain effect of the integrally formed embossed glass, the ratio range of the width of the exhaust groove 3 to the width of the concave pattern 2 is set to be 1: 30-1: 5, the width of the exhaust groove 3 has great influence on the exhaust effect, in the calendering process, the contact time of the hot-melt embossed glass 5 and the embossing roller 1 is very short, so that the ratio of the width of the exhaust groove 3 to the width of the concave pattern 2 is too small, the gas in the concave pattern 2 cannot be exhausted within the effective contact time of the hot-melt embossed glass 5 and the embossing roller 1, if the ratio of the width of the exhaust groove 3 to the width of the concave pattern 2 is too large, the integral grain effect and the pattern of the concave pattern 2 are influenced, and therefore, the ratio range of the width of the exhaust groove 3 to the width of the concave pattern 2 is set as follows: 1: 30-1: 5, and the exhaust effect of the exhaust groove 3 in a short time when the hot-melt embossing glass 5 is also in contact with the embossing can be enhanced without affecting the overall grain effect and pattern of the concave embossing 2.

The invention also provides an embossing glass rolling method, referring to fig. 1 to 6, the embossing device for improving the concave embossing rolling depth of the embossing roller is used, and the embossing glass rolling method comprises the following steps:

s1, weighing the following raw materials in percentage by mass: 71% of SiO2, and Na 2O: 13 percent of Al2O3, 1.25 percent of CaO, 8.95 percent of MgO, 4 percent of K2O, 1.04 percent of CaO, and then mixing the weighed raw materials;

s2, uniformly mixing the weighed raw materials, conveying the mixture to a ball mill for ball milling, and ball milling the raw materials to obtain powder with the particle size of 100-200 meshes;

s3, adding the powder obtained in the step S2 into a glass melting furnace, melting in the glass melting furnace, adjusting the temperature in the glass melting furnace, enabling the hot-melt patterned glass 5 to flow out of an overflow port of the glass melting furnace, and cooling the hot-melt patterned glass 5 from the overflow port to the embossing roller 1 to obtain a plastic state with a fixed shape;

s4, the embossing roller 1 rotates to drive the hot-melt embossing glass 5 to move forwards, the hot-melt embossing glass 5 enters the concave patterns 2 in the process of moving forwards, air in the concave patterns 2 is discharged along the exhaust grooves 3, the air is discharged to the outflow side of the hot-melt embossing glass 5, so that the whole concave patterns 2 can be filled with the hot-melt embossing glass 5, the hot-melt embossing glass 5 is gradually cooled in the moving process, patterns are formed on the glass, and the embossing glass is formed by rolling;

s5, after being rolled and formed, the patterned glass enters a degeneration kiln for annealing, so that the patterns on the patterned glass are better formed;

and S6, detecting, cutting and boxing the formed patterned glass.

Specifically, in step S1, before the raw materials are mixed, the raw materials are respectively pulverized into particles with a particle size of 0.2-1.2 mm.

Specifically, in the step S3, the melting temperature of the glass raw material in the glass kiln is 1500-1600 ℃, the melting time is 30-40 min, and the temperature is adjusted to 1200-1300 ℃ after melting.

Specifically, in step S3, when the surface of the hot-melt embossed glass 5 at the overflow port reaches 80mm to 100mm, the hot-melt embossed glass 5 flows out from the overflow port of the glass melting furnace.

Specifically, the annealing temperature in the annealing kiln in the step S6 is 400-600 ℃, and the annealing time is 20 min.

The invention has the advantages that the vent grooves 3 are arranged on the concave patterns of the embossing roller 1, in the process of rolling and manufacturing the embossed glass, in the process of rotating the embossing roller 1, the hot-melt embossed glass 5 flows into the concave patterns 2 on the embossing roller 1, and the air in the concave patterns 2 is discharged along the vent grooves 3 under the extrusion action of the hot-melt embossed glass 5, so that the problem that the whole concave patterns 2 are difficult to fill with the hot-melt embossed glass 5 due to the fact that the air occupies the space of the concave patterns 2 is avoided, and the problem that air bubbles exist after the glass is formed due to the fact that the air is left in the concave patterns 2 is also avoided.

The invention sets the relation between the direction of the vent groove 3 and the moving direction of the hot-melt embossing glass 5, the range of the included angle a between the plane P and the plane Q is larger than 0 degree and smaller than or equal to 90 degrees, the included angle a is preferably 90 degrees, the moving direction of the hot-melt embossing glass 5 is the direction indicated by K during the moving process of the hot-melt embossing glass 5, the hot-melt embossing glass 5 rotates, the hot-melt embossing glass 5 has the process of flowing into and flowing out of the embossing concave pattern 2, the air in the concave pattern 2 on the embossing roller 1 moves upwards along the circumferential line A1 in the vent groove 3 while the hot-melt embossing glass 5 flows into the concave pattern 2, when the hot-melt embossing glass 5 flows into one concave pattern 2, the air in the concave pattern 2 is discharged from the vent groove 3 to the adjacent concave pattern 2 which is not filled with the hot-melt embossing glass 5, air flows between the concave patterns 2 on the circumferential surface of the embossing roller 1 along the direction m, after the air enters the adjacent concave patterns 2 from one concave pattern 2, when the hot-melt embossing glass 5 flows into the adjacent concave patterns 2, the air in the concave patterns 2 is continuously discharged into the next concave pattern 2, and because the circumferential side surface of the embossing roller 1 is a cylindrical surface, the air in the concave patterns 2 can circularly flow along the circumferential side surface of the embossing roller 1, namely along the circumference where the circumferential line A1 is located in the drawing in the process of circulating the hot-melt embossing glass 5 into the concave patterns 2.

The ratio range of the width of the exhaust groove 3 to the width of the concave pattern 2 is set to be 1: 30-1: 5, so that the arrangement of the exhaust groove 3 does not influence the pattern and grain effects of the integrally formed patterned glass, the width of the exhaust groove 3 has great influence on the exhaust effect, in the calendering process, the contact time of the hot-melt patterned glass 5 and the embossing roller 1 is very short, therefore, if the ratio of the width of the exhaust groove 3 to the width of the concave pattern 2 is too small, the gas in the concave pattern 2 cannot be exhausted within the effective contact time of the hot-melt patterned glass 5 and the embossing roller 1, if the ratio of the width of the exhaust groove 3 to the width of the concave pattern 2 is too large, the integral grain effect and pattern of the concave pattern 2 can be influenced, and therefore, the ratio range of the width of the exhaust groove 3 to the width of the concave pattern 2 is set as follows: 1: 30-1: 5, and the exhaust effect of the exhaust groove 3 in a short time when the hot-melt embossing glass 5 is also in contact with the embossing can be enhanced without affecting the overall grain effect and pattern of the concave embossing 2.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined by the scope of the claims.