TW202112683A - Curved glass forming equipment including a mold and a forming apparatus - Google Patents

Abstract

This invention discloses a curved glass forming equipment including a mold and a forming apparatus. The mold includes a front side, a rear side, a left side, a right side, an undulating surface and two guide paths. The undulating surface extends from the front side to the rear side and is used for bearing a preheated glass sheet. The two guide paths are respectively located at the left side and the right side. The forming apparatus is capable of moving along the two guide paths and is provided with an air supply plane facing the undulating surface and keeping spaced from the preheated glass sheet. The air supply plane of the forming apparatus is capable of supplying a positive-pressure hot air flow to the preheated glass sheet so that the preheated glass sheet is temporarily adhered to the undulating surface.

Description

Curved glass forming equipment

The present invention relates to glass forming equipment, in particular to a non-contact glass forming equipment.

Current curved glass forming equipment includes heaters, molds and forming rollers. At present, the forming method of curved glass is to first place the processed glass on the mold, and at this time, the processed glass is flat. Then, the mold and the processed glass are heated to soften the processed glass to form a shape. Then, it directly contacts and presses the surface of the processed glass through the forming roller, so that the processed glass conforms to the surface undulations of the mold to form a corresponding curved surface.

At present, this kind of molding method needs to rely on the forming roller to directly contact and roll the surface of the glass to be processed, so that the processed glass temporarily fits the mold surface, but because of the need for direct contact, it is easy for the glass to be processed during the molding process. Indentation, dirt or other pollution is produced on the surface of the glass, which affects the quality of the curved glass.

Another way is to put the processed glass on the mold, and then use heating to soften the processed glass and naturally conform to the shape of the mold. Although this method does not require contact, it is not easy to control the degree of bending of the processed glass. Therefore, this The molding method has poor yield and is not conducive to mass production.

In view of the foregoing deficiencies, the curved glass forming equipment of the present invention allows the processed glass to fit the undulating surface of the mold through hot air flow, so as to avoid dirt, indentation or other pollution on the processed glass surface.

The curved glass forming equipment of the present invention includes a mold and a forming device. The mold includes a front side, a rear side, a left side, a right side, an undulating surface and two guiding paths. The undulating surface extends from the front side to the rear side and supports the preheated glass sheet. The two guiding paths are located on the left and right sides respectively. The forming device can move along the two guiding paths, and the air supply plane faces the undulating surface and keeps a distance from the preheated glass sheet. The air supply plane of the forming device can provide a positive pressure hot air flow to the preheated glass sheet, so that the preheated glass sheet is temporarily attached to the undulating surface.

Wherein, the molding device can move along the two guiding paths including the movement of the molding device relative to the mold or the movement of the mold relative to the molding device.

In this way, the curved glass forming equipment of the present invention can allow the preheated glass sheet to be temporarily attached to the undulating surface through the hot air flow, so as to avoid various problems caused by contact.

The composition, characteristics, or operation mode of the curved glass forming equipment provided by the present invention will be described in the detailed description of the subsequent embodiments. However, those with ordinary knowledge in the field of the present invention should be able to understand that the detailed description and the specific embodiments listed for implementing the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the patent application of the present invention.

Hereinafter, the corresponding preferred embodiments are listed in conjunction with the drawings to illustrate the components, operation, and effects of the curved glass forming equipment of the present invention. However, the composition, shape, and operation of the curved glass forming equipment in the drawings are only used to illustrate the technical features of the present invention, but not to limit the present invention.

As shown in FIG. 1, FIG. 1 is a schematic diagram of an embodiment of the curved glass forming equipment of the present invention. The curved glass forming equipment 100 includes a mold 110 and a forming device 130. The mold 110 includes a main body 111 and two guide plates 113. The main body 111 includes a front side 1111, a rear side 1113, a left side 1115, a right side 1117, and an undulating surface 1119. The undulating surface 1119 extends from the front side 1111 to the rear side 1113 to form a surface with uneven height. The uneven surface means that the present invention is not limited to a flat surface, any inclined slope, recessed or protruding surface. The undulating surface 1119 is used to carry the glass sheet 300.

The two guide plates 113 are connected to the main body 111 and are respectively located on the left side 1115 and the right side 1117. The top surfaces 1131 of the two guide plates 113 respectively define a guide path 1133, and the guide path 1133 is from the front side 1111 to the rear side. 1113 extends. In this embodiment, the top surface 1131 is flush with the undulating surface 1119. In other embodiments, the top surface 1131 may be higher or lower than the undulating surface 1119.

The molding device 130 moves along the guide path 1133. In other words, the molding device 130 can move back and forth between the front side 1111 and the rear side 1113.

The molding device 130 includes a hot air supplier 131, a left guide wheel group 133, a right guide wheel group 135 and a holder 137.

As shown in FIG. 2, the hot air supplier 131 includes a hot air pipe 1311, a heater 1313 and a hot air gun 1315. The hot air duct 1311 includes an air supply plane 13111 and a plurality of air holes 13113. The air supply plane 13111 is a partial outer surface of the hot air duct 1311. The plurality of air holes 13113 penetrate the hot air duct 1311 and are located on the air supply plane 13111. The heater 1313 is provided in the hot air duct 1311. The hot air gun 1315 is connected to the hot air pipe 1311, and can supply positive pressure hot air to the hot air pipe 1311, so that the hot air in the hot air pipe 1311 is sprayed out through the air hole 13113, and the flow direction of the air flow is shown by the arrow in the hot air pipe 1311 in the figure.

3 and 4 are schematic bottom views of the hot air supply 131 respectively. The plurality of air holes 13113 are arranged at intervals to form a straight line. As shown in FIG. 3, the plurality of air holes 13113 may also be arranged in an array, as shown in FIG. 4. In this way, there will be three straight lines formed by the air holes 13113. The spaced air holes 13113 can prevent the airflow from generating large local stresses of line contact on the surface of the glass to be processed as in traditional roller operations.

Please refer to Figure 2 again, the left guide wheel group 133 and the right guide wheel group 135 are respectively connected to the hot air duct 1311, and part of the wheel surfaces 1331 and 1351 of the left guide wheel group 133 and the right guide wheel group 135 are slightly convex Extend the air supply plane 13111 of the hot air pipe 1311. The wheel surfaces 1331 and 1351 of the left guide wheel set 133 and the right guide wheel set 135 move along the guide path 1133 to keep the air supply plane 13111 and the undulating surface 1119 spaced apart.

Please refer to FIG. 1 again, the holder 137 is connected to the hot air supplier 131 so that the wheel surfaces 1331 and 1351 of the left guide wheel set 133 and the right guide wheel set 135 are kept in contact with the top surfaces 1131 of the two guide plates 113. In this way, the interval between the air supply plane 13111 and the undulating surface 1119 can be maintained approximately the same, and the air pressure of the hot air blowing can also be more consistent.

In this embodiment, the holder 137 includes two rotating cylinders 1371 and two cantilevers 1373. The two cantilevers 1373 are respectively connected to the two rotating cylinders 1371 and the hot air pipe 1311. The rotating cylinder 1371 is used to drive the cantilever 1373 so that the wheel surfaces 1331 and 1351 of the left guide wheel set 133 and the right guide wheel set 135 can maintain contact with the two guide wheels. The top surface 1131 of the board 113.

In another embodiment, as shown in FIG. 5, the holder 137a includes a telescopic cylinder 1371a and a fixing frame 1373a. The telescopic cylinder 1371a is connected to the fixing frame 1373a. The fixing frame 1373a is connected to the hot air pipe 1311a, and the telescopic cylinder 1371a is used to drive the fixing frame 1373a so that the wheels of the left guide wheel set 133a and the right guide wheel set 135a can keep in contact with the two guide paths 1133a (the dotted line in the figure) .

In this embodiment, the mold 110a has only the body 111a, and the guide plate is omitted. In other words, the guide path 1133a can be planned on the body 111a.

Although the two types of retainers 137 and 137a are described above, in other embodiments, the retainers can also use other methods or devices to make the wheel surfaces 1331 of the left guide wheel set 133 and the right guide wheel set 135 1351 keeps in contact with the top surfaces 1131 of the two guide plates 113.

The composition and structure of the curved glass forming equipment of the present invention are as described above, and its operation and effects will be described later.

As shown in Figure 6-8, the curved glass forming method is to first preheat the processed glass to a plastic state, and then call the glass in this state the preheated glass sheet 300, and the preheated glass sheet 300 is placed on the mold, that is, on the undulating surface 1119. Among them, the glass to be processed can be placed on the mold for preheating, or preheated first and then placed on the mold. In addition, before shaping, the preheated glass sheet 300 placed on the undulating surface 1119 is not attached to the undulating surface 1119, especially on the curved surface.

In addition, although only the left guide wheel group 133 is shown in FIGS. 6-8, it can be seen from the foregoing description that the structure, function, and operation of the right guide wheel group 135 are the same as those of the left guide wheel group 133, so the right side is omitted The operation of the guide wheel group 135 is illustrated in an illustration.

The wheel surface 1331 of the left guide wheel set 133 is moved along the guide path 1133 through the retainer 137. During the movement, the heater 1313 of the hot air supplier 131 is continuously heated to maintain the working temperature in the hot air pipe 1311. And through the hot air gun, the hot air in the hot air pipe 1311 is blown from the air hole 13113 to the preheated glass sheet 300, so that the preheated glass sheet 300 is temporarily attached to the undulating surface 1119. Therefore, as, The molding device 130 moves from the front side of the mold body to the back side of the preheated glass sheet 300 to conform to the undulating surface 1119 to complete the molding, as shown in FIG. 8.

In addition, during the movement of the molding device, the blowing direction of the hot air from the air hole 13113 is kept in a vertical state with the preheated glass sheet 300. This blowing method can ensure that the preheated glass sheet 300 actually conforms to the undulating surface 1119. The change. In addition, because the entire molding process does not need to touch the preheated glass sheet 300, the preheated glass sheet 300 or the final molded glass surface is less likely to have indentations, scratches, or other residual pollution. .

In summary, the curved glass forming equipment of the present invention is a non-contact method, and uses hot air flow to mold the processed glass without contacting the processed glass to avoid contamination or damage to the processed glass. In addition, during the molding process, the air supply plane and the undulating surface are maintained at a substantially constant interval, so that the thrust of the hot air flow is maintained substantially the same. Furthermore, through the hot air flow, the processed glass can be maintained in a moldable state. Therefore, after the molding is completed, other cooling methods can be used to efficiently set the glass.

Finally, it is emphasized again that the constituent elements disclosed in the previously disclosed embodiments of the present invention are only examples and are not used to limit the scope of the case. The substitution or changes of other equivalent elements shall also be subject to the scope of the patent application of this case. Covered.

100: Curved glass forming equipment 110: Mould 111: body 1111: front side 1113: back side 1115: left side 1117: right side 1119: undulating surface 113: Guide Board 1131: top surface 1133: Guiding Path 130: Forming device 131: Hot air supply device 1311: Hot air duct 13111: air supply plane 13113: Stoma 1313: heater 1315: Hot Air Gun 133: Left guide wheel group 135: Right guide wheel group 1331, 1351: wheel surface 137: Retainer 1371: Rotating Cylinder 1373: Cantilever 110a: Mould 111a: body 1133a: Guidance path 1311a: Hot air duct 133a: left guide wheel group 135a: Right guide wheel group 137a: retainer 1371a: Telescopic cylinder 1373a: fixed frame 300: glass sheet

Fig. 1 is a schematic diagram of an embodiment of the curved glass forming equipment of the present invention. Fig. 2 is a partial cross-sectional view of the hot air supplier, the left guide wheel group and the right guide wheel group in Fig. 1. 3 and 4 are schematic bottom views of the hot air supplier, the left guide wheel group and the right guide wheel group in FIG. 1, respectively. Fig. 5 is a schematic diagram of another embodiment of the curved glass forming equipment of the present invention. Figures 6-8 are schematic diagrams of the operation of the curved glass forming equipment in Figure 1.

100: Curved glass forming equipment

110: Mould

111: body

1111: front side

1113: back side

1115: left side

1117: right side

1119: undulating surface

113: Guide Board

1131: top surface

1133: Guiding Path

130: Forming device

131: Hot air supply device

1311: Hot air duct

133: left guide wheel

135: Right guide wheel

137: Retainer

1371: Rotating Cylinder

1373: Cantilever

300: glass sheet

Claims (8)

A curved glass forming equipment, including: A mold includes a front side, a rear side, a left side, a right side, a raised surface, and two guiding paths. The undulating surface extends from the front side to the rear side and supports a For the preheated glass sheet, the two guiding paths are respectively located on the left side and the right side; and A molding device can move along the two guiding paths, and an air supply plane is facing the undulating surface and is spaced from the preheated glass sheet. The air supply plane of the molding device can be The preheated glass sheet provides a positive pressure hot air flow so that the preheated glass sheet is temporarily attached to the undulating surface. The curved glass forming equipment according to the first item of the patent application, wherein the forming device includes a hot air supply, the hot air supply includes a hot air pipe, a heater and a hot air gun, and the air supply plane is located at Part of the outer surface of the hot air tube, the hot air tube includes a plurality of air holes located on the air supply plane, the heater is arranged in the hot air tube, the hot air gun is connected to the hot air tube, and the hot air tube is supplied with positive Pressure gas. According to the curved glass forming equipment described in item 2 of the scope of patent application, the plurality of air holes are arranged at intervals to form at least a straight line. The curved glass forming equipment described in item 2 of the scope of patent application, wherein the forming device includes a left guide wheel group and a right guide wheel group, the left guide wheel group and the right guide wheel group are respectively connected The hot air pipes move along the two guiding paths respectively, and part of the wheel surfaces of the left guide wheel set and the right guide wheel set protrude from the air supply plane of the hot air pipe to make the air supply plane Keep a distance from the preheated glass sheet. The curved glass forming equipment described in item 2 of the scope of patent application, wherein the forming device includes a holder connected to the hot air supplier so that the left guide wheel set and the right guide wheel set are The wheel faces remain in contact with the two guide paths. For example, the curved glass forming equipment according to the fifth item of the scope of patent application, wherein the holder includes two rotating cylinders and two cantilevers. The two cantilevers are respectively connected to the two rotating cylinders and the hot air pipe, and the rotating cylinder is used to drive the two rotating cylinders and the hot air pipe. cantilever. For example, the curved glass forming equipment according to the fifth item of the scope of patent application, wherein the holder includes a telescopic cylinder and a fixed frame, the fixed frame is connected to the telescopic cylinder and the hot air pipe, and the telescopic cylinder is used to drive the fixed frame . According to the curved glass forming equipment described in claim 1, wherein the mold includes a body and two guide plates, the undulating surface is formed on the body, and the two guide plates are connected to the body and are located on the body. On two opposite sides of the main body, the two guiding paths are respectively located on the two guiding plates.

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