Graphite mold for 3D glass hot bending machine

Abstract

The invention discloses a graphite die used on a 3D glass hot bending machine, which comprises a graphite male die and a graphite female die which can be matched with the hot bending machine to be used for hot-pressing and forming plate glass into 3D glass, and a first coding mark is arranged on the bottom surface of a downwards protruding punch of the graphite male die; when the punch of the graphite male die downwards presses the heated and softened glass in the graphite female die, the first coding mark on the bottom surface of the punch can be imprinted on the surface of the glass to form a second coding mark, and the second coding mark on the surface of the formed 3D glass and the first coding mark on the graphite male die effectively link the two. Whether 3D glass or the graphite male die or the graphite female die has a molding quality problem, the graphite male die, the graphite female die or the 3D glass which is linked with the 3D glass detection device can be quickly and accurately found out, so that corresponding measures such as repair and replacement can be taken in time, normal operation of processing production is ensured, and the reject ratio of production processing is reduced as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of graphite molds, and in particular to a graphite mold used on a 3D glass hot bending machine. Background Art

[0002] In the existing 3D glass hot bending forming technology, the flat glass is generally placed between the upper graphite punch and the lower graphite die, and then the flat glass and the graphite mold are placed in a hot bending machine and heated until the glass softens. Then, the punch is driven by a cylinder or other driving mechanism to press the flat glass down to form it into 3D glass. If the 3D glass formed by the graphite mold has quality problems, it means that the graphite mold is likely to need to be repaired or replaced. In addition, if the graphite mold is detected to have quality problems, it means that the 3D glass hot-pressed by it is likely to have quality problems and needs to be tested. Therefore, in order to ensure the molding quality of 3D glass, the graphite mold needs to be managed in a standardized and orderly manner. However, in the existing technology, there is a lack of effective linking method between the formed 3D glass and the graphite mold, and the graphite mold for forming the 3D glass cannot be traced back efficiently and accurately. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a graphite mold for a 3D glass hot bending machine.

[0004] The graphite mold used on the 3D glass hot bending machine includes: a graphite convex mold and a graphite concave mold that can be used in conjunction with the hot bending machine to hot-press flat glass into 3D glass. The bottom surface of the punch protruding downward from the graphite convex mold has a first coding mark. When the punch of the graphite convex mold presses down the heat-softened glass in the graphite concave mold, the first coding mark on the bottom surface of the punch can be imprinted onto the surface of the glass to form a second coding mark.

[0005] Preferably, the second coding mark imprinted onto the glass surface by the punch of the graphite punch is located in the crater area of ​​the formed 3D glass.

[0006] Preferably, a positioning groove is provided on the punch of the graphite punch at a position corresponding to the crater of the 3D glass, the horizontal projection of the positioning groove should be located within the area of ​​the horizontal projection of the crater of the 3D glass, and the first coding mark is located on the bottom surface of the positioning groove.

[0007] Preferably, the surrounding contour of the positioning groove is substantially the same as the surrounding contour of the crater of the 3D glass, and the horizontal projection of the positioning groove should be located within the area of ​​the horizontal projection of the crater of the 3D glass.

[0008] Preferably, the first coding mark on the bottom surface of the punch protruding downward from the graphite punch is a number string groove formed by laser engraving on its surface.

[0009] Preferably, the graphite die has a third coding mark which is the same as the first coding mark on its surface other than the surface where the glass cavity is placed.

[0010] Preferably, the third coding mark is located on the outer peripheral surface of the graphite die.

[0011] Preferably, the third coding mark on the graphite die is a number string groove formed by laser engraving on its surface.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The second coding mark on the surface of the molded 3D glass and the first coding mark on the graphite punch effectively link the two together. No matter whether quality problems are detected in the 3D glass or the graphite punch or graphite die, the linked graphite punch, graphite die or 3D glass can be quickly and accurately found, so that corresponding repair and replacement measures can be taken in time to ensure the normal operation of processing and production and minimize the defective rate of production and processing.

[0014] The second coding mark imprinted onto the glass surface by the punch of the graphite punch is located in the crater area of ​​the 3D glass after molding, so that the second coding mark can be removed from the 3D glass together with the glass in the crater area, thereby ensuring that the second coding mark will not affect the surface quality of the final product.

[0015] The graphite die has a third coding mark identical to the first coding mark on its surface other than the glass cavity, thereby more reliably and comprehensively linking the product with the graphite mold, and also preventing mismatching between the graphite punch and the graphite die. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the graphite mold used in the 3D glass hot bending machine proposed by the present invention.

[0017] Figure 2 This is a three-dimensional schematic diagram of the graphite male mold used in a 3D glass hot bending machine proposed by the present invention.

[0018] Figure 3 This is the front view of the hot-pressed 3D glass. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1 to 3, a graphite mold used on a 3D glass hot bending machine, including: a graphite punch 1 and a graphite die 2 that can be used in conjunction with the hot bending machine to hot-press flat glass into 3D glass 3. The bottom surface of the punch 11 protruding downward from the graphite punch 1 has a first coding mark 12. When the punch 11 of the graphite punch 1 presses down on the heat-softened glass in the graphite die 2, the first coding mark 12 on the bottom surface of the punch 11 can be imprinted onto the surface of the glass 3 to form a second coding mark 31.

[0021] The second coding mark 31 on the surface of the molded 3D glass 3 and the first coding mark on the graphite punch 1 effectively link the two together. No matter whether quality problems are detected in the molding of the 3D glass 3 or the graphite punch 1 and the graphite die 2, the graphite punch 1, the graphite die 2 or the 3D glass 3 linked thereto can be quickly and accurately found, so as to take corresponding repair and replacement measures in time to ensure the normal operation of the processing and production and minimize the defective rate of the production and processing.

[0022] Reference Figure 3 The second coding mark 31 imprinted on the surface of the glass 3 by the punch 11 of the graphite punch 1 is located in the crater 32 area of ​​the 3D glass 3 after molding. The crater of the 3D glass is the through hole where the camera is required to be installed. This through hole is generally processed on a CNC machine. Therefore, the second coding mark 31 will also be removed from the 3D glass, which will not affect the surface quality of the final product.

[0023] Reference Figure 2 A positioning groove 13 is provided on the punch 11 of the graphite punch 1 at a position corresponding to the crater 32 of the 3D glass 3. The horizontal projection of the positioning groove 13 should be located within the area of ​​the horizontal projection of the crater 32 of the 3D glass 3. The first coding mark 12 is located on the bottom surface of the positioning groove 13. The positioning groove 13 facilitates the operator to quickly find the position where the first coding mark 12 needs to be processed, and there is a clear area range reference during the processing process.

[0024] The surrounding contours of the positioning groove 13 are roughly the same as the surrounding contours of the crater 32 of the 3D glass 3, and the horizontal projection of the positioning groove 13 should be located within the area of ​​the horizontal projection of the crater 32 of the 3D glass 3. This design can expand the area where the first coding mark 12 is located as much as possible, so that a larger, more eye-catching and clearer first coding mark 12 can be processed.

[0025] The first coding mark 12 on the bottom surface of the punch 11 protruding downward from the graphite punch 1 is a digital string groove formed by laser engraving on its surface. Laser engraving can minimize the damage to hard and brittle materials such as graphite to minimize the occurrence of powder loss or even cracks.

[0026] The graphite die 2 has a third coding mark 22 identical to the first coding mark 12 on its surface outside the cavity 21 where the glass 3 is placed, thereby more reliably and comprehensively linking the product with the graphite mold. In addition, mismatching between the graphite punch 1 and the graphite die 2 can also be prevented.

[0027] Reference Figure 1 The second coding mark 22 is located on the outer peripheral surface of the graphite die 2. With this design, the operator can still observe the second coding mark 22 even after the graphite punch 1 and the graphite die 2 are closed.

[0028] The second coding mark 22 on the graphite die 2 is a digital string groove formed by laser engraving on its surface, so as to minimize the damage to the graphite die 2 caused by processing the second coding mark 22.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A graphite mold for a 3D glass hot bending machine, characterized in that: The invention comprises: a graphite convex mold (1) and a graphite concave mold (2) which can be used in conjunction with a heat bending machine to heat-press flat glass into 3D glass (3); a first coding mark (12) is provided on the bottom surface of a punch (11) protruding downward of the graphite convex mold (1); when the punch (11) of the graphite convex mold (1) presses down on the heat-softened glass in the graphite concave mold (2), the first coding mark (12) on the bottom surface of the punch (11) can be pressed onto the surface of the glass (3) to form a second coding mark (31).

2. The graphite mold for a 3D glass hot bending machine according to claim 1, characterized in that: The second coding mark (31) imprinted onto the surface of the glass (3) by the punch (11) of the graphite punch (1) is located in the crater (32) area of ​​the 3D glass (3) after molding.

3. The graphite mold for a 3D glass hot bending machine according to claim 2, characterized in that: A positioning groove (13) is provided on the punch (11) of the graphite punch (1) at a position corresponding to the crater (32) of the 3D glass (3), and the horizontal projection of the positioning groove (13) should be located within the area of ​​the horizontal projection of the crater (32) of the 3D glass (3). The first coding mark (12) is located on the bottom surface of the positioning groove (13).

4. The graphite mold for a 3D glass hot bending machine according to claim 3 is characterized in that: The surrounding contour of the positioning groove (13) is substantially the same as the surrounding contour of the crater (32) of the 3D glass (3), and the horizontal projection of the positioning groove (13) should be located within the area of ​​the horizontal projection of the crater (32) of the 3D glass (3).

5. The graphite mold for a 3D glass hot bending machine according to claim 1, characterized in that: The first coding mark (12) on the bottom surface of the punch (11) protruding downward of the graphite punch (1) is a number string groove formed by laser engraving on its surface.

6. The graphite mold for a 3D glass hot bending machine according to claim 1, characterized in that: The graphite die (2) has a third coding mark (22) identical to the first coding mark (12) on its surface other than the cavity (21) for placing the glass (3).

7. The graphite mold for a 3D glass hot bending machine according to claim 6, characterized in that: The third coding mark (22) is located on the outer peripheral surface of the graphite die (2).

8. The graphite mold for a 3D glass hot bending machine according to claim 6, characterized in that: The third coding mark (22) on the graphite die (2) is a number string groove formed by laser engraving on its surface.

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