Curved glass hot bending mold

Abstract

The utility model relates to the technical field of curved glass processing, specifically relates to a curved glass hot bending mould, including upper die and lower die, the top of lower die is provided with the die table that protrudes upwards, the bottom of upper die is provided with the die groove that cooperates with die table, the die table is embedded in the die groove, the top middle of die table is provided with the hot bending groove, the bottom middle of die groove is provided with the hot bending block that protrudes downwards, the hot bending block is embedded in the hot bending groove, the both ends of the top of die table correspond to hot bending groove and are provided with the accommodating groove of strip shape respectively, the bottom of accommodating groove is provided with a plurality of pressure relief hole that passes through its upper and lower surface, each accommodating groove is embedded with strip insert, the top middle of upper die is provided with at least two transverse arrangement's strip pressing block that protrude upwards. The utility model discloses a curved glass hot bending mould through adopting strip insert stress structure, can solve the problem that the high arc surface junction surface of hot 1.8mm product thickness is difficult to flatten, and two strip insert structures can avoid the stability of the hot bending size of curved glass from being influenced by processing reverse edge.

Description

Technical Field

[0001] This utility model relates to the field of curved glass processing technology, specifically to a curved glass hot bending mold. Background Technology

[0002] When curved glass is hot-bent into products with high curvature, ordinary flat mold structures cannot flatten the product. The size of the beveled edge of the glass sheet will affect the stability of the hot-bent dimensions of the curved glass due to the thermal expansion and contraction of the glass during the hot bending process. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a curved glass hot bending mold.

[0004] The purpose of this utility model is achieved through the following technical solution: a curved glass hot bending mold, including an upper mold and a lower mold, the top of the lower mold is provided with an upwardly protruding mold platform, the bottom of the upper mold is provided with a mold groove that cooperates with the mold platform, the mold platform is embedded in the mold groove, the top of the mold platform is provided with a hot bending groove in the middle, the bottom of the mold groove is provided with a downwardly protruding hot bending block, the hot bending block is embedded in the hot bending groove, and there is a gap between the upper surface of the hot bending groove and the lower surface of the hot bending block to form a hot bending cavity for hot bending the curved glass, the top of the mold platform is provided with long strip-shaped receiving grooves corresponding to both ends of the hot bending groove, the length of the receiving groove is greater than the width of the hot bending groove, the bottom of the receiving groove is provided with multiple pressure relief holes penetrating its upper and lower surfaces, each receiving groove is embedded with a strip-shaped insert, and the top of the upper mold is provided with at least two horizontally arranged strip-shaped pressure blocks protruding upward in the middle.

[0005] Furthermore, both the upper and lower molds are rounded rectangular structures, with a first chamfer at one corner of the upper mold and a second chamfer at the corresponding position of the first chamfer on the lower mold.

[0006] Furthermore, the bottom sides of the upper mold are both recessed with finger grooves.

[0007] Furthermore, both sides of the mold platform are provided with strip grooves, and the concave part of the finger groove is embedded in the strip groove.

[0008] Furthermore, the top two sides of the mold platform are provided with longitudinal venting grooves.

[0009] Furthermore, both ends of the strip-shaped insert are semi-circular.

[0010] Furthermore, a strip-shaped edge groove is formed in the upper middle part of the inner side surface of the strip-shaped insert.

[0011] Furthermore, the bottom surface of the lower mold is provided with multiple pressure-dividing grooves in the longitudinal direction.

[0012] The beneficial effects of this utility model are as follows: The curved glass hot bending mold of this utility model can solve the problem of the difficulty in flattening the high arc surface of the hot bending product with a thickness of 1.8mm by adopting a strip insert force-bearing structure; and the two strip insert structures can avoid the impact of processing beveling on the stability of the curved glass hot bending dimensions; the bottom thickness of the strip insert can be effectively positioned to avoid the insert shifting due to expansion and affecting the dimensions of the product after molding; and the inner side of the strip insert can be used as part of the hot bending cavity, flexibly combined with testing of different gaps during sampling, providing dimensional product data more quickly to improve sampling efficiency. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is an exploded perspective view of this utility model.

[0015] Figure 3 This is a perspective view of the upper mold described in this utility model.

[0016] Figure 4 This is a perspective view of the lower mold described in this utility model.

[0017] Figure 5 This is a cross-sectional view of the present invention.

[0018] Figure 6 This is a longitudinal sectional view of the present invention.

[0019] The attached figures are labeled as follows: upper mold 1, mold groove 11, hot bending block 12, strip pressure block 13, first chamfer 14, finger groove 15, lower mold 2, mold platform 21, strip groove 211, venting groove 212, hot bending groove 22, receiving groove 23, pressure relief hole 231, second chamfer 24, hot bending cavity 3, strip insert 4, strip edge groove 41. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-6 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0021] See Figure 1-6A curved glass hot bending mold includes an upper mold 1 and a lower mold 2. The top of the lower mold 2 is provided with an upwardly protruding mold platform 21. The bottom of the upper mold 1 is provided with a mold groove 11 that cooperates with the mold platform 21. The mold platform 21 is embedded in the mold groove 11. A hot bending groove 22 is provided in the middle of the top of the mold platform 21. A hot bending block 12 is provided in the middle of the bottom of the mold groove 11. The hot bending block 12 is embedded in the hot bending groove 22. There is a gap between the upper surface of the hot bending groove 22 and the lower surface of the hot bending block 12 to form a hot bending cavity 3 for hot bending the glass. The top of the mold platform 21 is provided with long strip-shaped receiving grooves 23 at both ends of the hot bending groove 22. The length of the receiving groove 23 is greater than the width of the hot bending groove 22. The bottom of the receiving groove 23 is provided with multiple pressure relief holes 231 penetrating its upper and lower surfaces. Each receiving groove 23 is embedded with a strip-shaped insert 4. At least two horizontally arranged strip-shaped pressure blocks 13 are provided in the middle of the top of the upper mold 1.

[0022] This utility model's curved glass hot bending mold, by employing a strip-shaped insert 4 force-bearing structure, can solve the problem of difficulty in flattening the high-arc surface connection surface of a 1.8mm thick product during hot bending. Furthermore, the structure of two strip-shaped inserts 4 can avoid the impact of processing beveling on the stability of the curved glass hot bending dimensions. The bottom thickness of the strip-shaped insert 4 can effectively position the product, preventing the insert from shifting due to expansion and affecting the dimensions of the product after molding. In addition, the inner side of the strip-shaped insert 4 can serve as part of the hot bending cavity 3, flexibly combining different gap tests during sampling, providing dimensional product data more quickly and improving sampling efficiency.

[0023] In this embodiment, both the upper mold 1 and the lower mold 2 are rounded rectangular structures. The upper mold 1 has a first chamfer 14 at one corner, and the lower mold 2 has a second chamfer 24 at the position corresponding to the first chamfer 14. The above structure facilitates the positioning and assembly of the upper mold 1 and the lower mold 2.

[0024] In this embodiment, finger grooves 15 are recessed inward on both sides of the bottom of the upper mold 1. The finger grooves 15 facilitate opening the upper mold 1.

[0025] In this embodiment, strip grooves 211 are provided on both sides of the mold platform 21, and the recessed part of the finger groove 15 is embedded in the strip groove 211. The above structure facilitates the assembly of the upper mold 1 and the lower mold 2.

[0026] In this embodiment, exhaust grooves 212 are longitudinally provided on both sides of the top of the mold platform 21. The above structure facilitates the discharge of air compressed by the hot bending cavity 3 when the upper mold 1 is pressed down.

[0027] In this embodiment, both ends of the strip-shaped insert 4 are semi-circular. This structure facilitates the insertion of the strip-shaped insert 4 into the receiving groove 23.

[0028] In this embodiment, a strip groove 41 is provided in the upper middle part of the inner side surface of the strip insert 4. The strip groove 41 allows the inner side surface of the strip insert 4 to serve as part of the hot bending cavity 3, flexibly combining different gap tests during prototyping, providing dimensional product data more quickly and improving prototyping efficiency.

[0029] In this embodiment, the bottom surface of the lower mold 2 is provided with multiple pressure-dividing grooves in the longitudinal direction.

[0030] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A curved glass hot bending mold, comprising an upper mold and a lower mold, characterized in that: The lower mold has an upward-protruding mold platform at its top, and the upper mold has a mold groove at its bottom that mates with the mold platform. The mold platform is embedded in the mold groove. A hot bending groove is formed in the middle of the top of the mold platform, and a hot bending block is formed in the middle of the bottom of the mold groove. The hot bending block is embedded in the hot bending groove, and there is a gap between the upper surface of the hot bending groove and the lower surface of the hot bending block to form a hot bending cavity for hot bending the glass. The top of the mold platform has long strip-shaped receiving grooves at both ends corresponding to the hot bending groove. The length of the receiving groove is greater than the width of the hot bending groove. Multiple pressure relief holes are formed at the bottom of the receiving groove, penetrating its upper and lower surfaces. Each receiving groove is fitted with a strip-shaped insert. At least two horizontally arranged strip-shaped pressure blocks are formed in the middle of the top of the upper mold.

2. The curved glass hot bending mold according to claim 1, characterized in that: Both the upper and lower molds are rounded rectangular structures. The upper mold has a first chamfer at one corner, and the lower mold has a second chamfer at the position corresponding to the first chamfer.

3. The curved glass hot bending mold according to claim 1, characterized in that: The bottom sides of the upper mold are both recessed with finger grooves.

4. The curved glass hot bending mold according to claim 3, characterized in that: Both sides of the mold platform are provided with strip grooves, and the concave part of the finger groove is embedded in the strip groove.

5. A curved glass hot bending mold according to claim 1, characterized in that: The top two sides of the mold platform are provided with longitudinal venting grooves.

6. A curved glass hot bending mold according to claim 5, characterized in that: Both ends of the strip-shaped insert are semi-circular.

7. A curved glass hot bending mold according to claim 1, characterized in that: A strip-shaped edge groove is provided on the upper middle part of the inner side of the strip-shaped insert.

8. A curved glass hot bending mold according to claim 7, characterized in that: The bottom surface of the lower mold has multiple pressure-dividing grooves longitudinally.

Images