CN212610246U - Hot bending die - Google Patents

Abstract

The utility model discloses a hot bending die, which comprises an upper die and a lower die buckled with the upper die, wherein the lower die comprises two first forming blocks and a lower die plate with two mounting grooves, the two first forming blocks are slidably mounted on the two mounting grooves, the lower die plate and the two first forming blocks enclose to form a cavity, the upper die comprises an upper die plate, two second forming blocks and two sliding inserts, the upper die plate is provided with two first mounting holes, two second mounting holes and a supporting table positioned between the two second mounting holes, the two second mounting holes are positioned between the two first mounting holes, the two second forming blocks are respectively mounted in the two second mounting holes and enclose to form a forming table with the supporting table, the two sliding inserts are respectively slidably mounted on the two first mounting holes and respectively butt against the two first forming blocks, one side of the first forming block facing the supporting table is provided with a forming groove, the forming table is correspondingly provided with a forming bulge matched with the forming groove, the concave cavity and the forming table are enclosed to form a hot bending cavity for hot bending the curved glass plate.

Description

Hot bending die

Technical Field

The utility model relates to a mould technical field especially relates to a hot bending die.

Background

In the prior art, a flat glass plate is hot-bent into a curved glass plate with a bent edge, and a hot-bending mold is usually used for hot-bending molding. The existing hot bending die is generally composed of a lower die with a concave cavity and an upper die with a boss, and a hot bending die cavity is formed by enclosing the bottom surface of the concave cavity and the end surface of the boss. The mode of adopting the hot bending mould to carry out hot bending on the plate glass plate is as follows: the flat glass plate is placed in the concave cavity of the lower die, the upper die is buckled on the lower die from the upper side, the lug boss of the upper die extends into the concave cavity of the lower die and is abutted against the flat glass plate, and the flat glass plate can be thermally bent into the curved glass plate by heating and pressurizing.

However, the curved glass sheets after the conventional hot bending are difficult to be taken out from the hot bending mold.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a hot bending mould which can effectively solve the problem that the curved glass plate after the existing hot bending is difficult to take out from the hot bending mould.

The utility model discloses a following technical scheme realizes:

the utility model provides a hot-bending die, including last mould and with go up the lower mould of mould looks lock, the lower mould includes two first forming blocks and has the lower bolster of two mounting grooves, two first forming block slidable mounting in two on the mounting groove, lower bolster and two first forming blocks enclose to close and form a cavity that is used for placing the plane glass board, it includes cope match-plate pattern, two second forming blocks and two slip mold inserts to go up the mould, the cope match-plate pattern has two first mounting holes, two second mounting holes and is located two brace table between the second mounting hole, two the second mounting hole is located two between the first mounting hole, two the second forming block is installed respectively in two in the second mounting hole and with brace table encloses synthetic one shaping platform, two slip mold insert respectively slidable mounting in two on the first mounting hole and respectively the butt in two first forming block is in order to promote first forming block court the shaping platform court One side of the first forming block moves horizontally, a forming groove is formed in one side, facing the supporting table, of the first forming block, a forming protrusion matched with the forming groove is correspondingly arranged on the forming table, and the cavity and the forming table enclose a hot bending cavity for hot bending the curved glass plate.

Furthermore, the first forming block is provided with a first outer wall surface far away from one side of the lower template, a second outer wall surface back to the first outer wall surface and a first sliding surface far away from one side of the cavity, the first sliding surface is positioned between the first outer wall surface and the second outer wall surface, one end of the first sliding surface is connected with the first outer wall surface, the other end of the first sliding surface extends towards one side of the second outer wall surface in an inclined mode, the distance between the two first sliding surfaces gradually increases from one side close to the first outer wall surface to one side close to the second outer wall surface, the sliding insert is correspondingly provided with a second sliding surface matched with the first sliding surface, and the forming groove is formed in one side, far away from the first sliding surface, of the first forming block.

Further, the sliding insert comprises a first cover plate and a first abutting plate convexly arranged on the first cover plate, the second sliding surface is arranged on the first abutting plate, the peripheral size of the first abutting plate is smaller than that of the first cover plate, a first step is concavely arranged on one side, far away from the lower template, of the inner side wall of the first mounting hole, and the first cover plate abuts against the first step.

Furthermore, the second forming block comprises a second cover plate and a second abutting plate protruding on the second cover plate, the peripheral size of the second abutting plate is smaller than that of the second cover plate, a second step is concavely arranged on one side, far away from the lower template, of the inner side wall of the second mounting hole, and the second cover plate abuts against the second step.

Further, the cope match-plate pattern includes the backup pad and holds the board, the backup pad includes the cope match-plate pattern and protruding locating the cope match-plate pattern bottom the brace table, two first mounting hole and two the second mounting hole is all located at the interval the cope match-plate pattern, the card is held the board and is included the roof and protruding a plurality of first curb plates of locating the roof both sides, keeping away from of the cope match-plate pattern be equipped with on one side of lower bolster and be used for supplying card is held the board and is inserted and both ends respectively with two the card chamber of holding that the second mounting hole communicates, the card is held the board install in card intracavity and part first curb plate stretch into in the second mounting hole and butt in the second forming block.

Furthermore, a holding hand part is concavely arranged on the clamping plate.

Further, the brace table includes that first boss and the protruding tip of locating with the upper plate body is connected the protruding tip of first boss both sides, the peripheral dimension of protruding tip is close to from one side of upper plate body court one side of lower bolster increases progressively, just protruding tip have with the first butt face of second forming block looks butt, the second forming block be equipped with first butt face matched with second butt face, first butt face and second butt face all are the inclined plane, protruding tip with the synthesis is enclosed to second forming block part the shaping is protruding.

Further, the second butt plate comprises a second boss, a supporting block and a butt block which are sequentially connected, the second boss is connected with the second cover plate, the second boss, the supporting block and the butt block enclose a U-shaped groove, and the second butt surface is arranged on the butt block.

Further, the lower template includes the lower plate body, the second curb plate that two intervals set up and the third curb plate that two intervals set up, the both ends of second curb plate respectively with two the third curb plate is connected perpendicularly, just second curb plate and third curb plate are all protruding to be located on the lower plate body, two the mounting groove is all located the lower plate body and with the third curb plate is parallel.

Furthermore, an annular clamping groove is concavely formed in the inner side wall of the lower template, and an annular third step matched with the annular clamping groove is correspondingly arranged on the upper template.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model can process the curved glass plate with the back-off and the back-off angle too large by one-time hot pressing by a set of hot bending mould with the structure, thereby reducing the manufacturing cost; and the upper template, the lower template, the first forming block, the second forming block and the sliding insert can be mutually disassembled, so that the curved glass plate can be quickly taken out of the hot bending die.

Drawings

Fig. 1 is a schematic structural view of a hot bending die according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is an exploded view of a hot bending mold according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a lower template provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first molding block according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an upper die provided in an embodiment of the present invention;

fig. 7 is an exploded view of an upper die according to an embodiment of the present invention;

fig. 8 is a first schematic structural diagram of an upper template according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second upper template according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second forming block according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a curved glass plate according to an embodiment of the present invention.

In the figure: 10. a curved glass plate; 20. an upper die; 21. mounting a template; 211. a support plate; 212. an upper plate body; 2121. a first mounting hole; 2122. a second mounting hole; 2123. a first step; 2124. a second step; 213. a support table; 2131. a first boss; 2132. a protruding end portion; 2133. a first abutting surface; 214. A chucking chamber; 215. a third step; 216. a clamping plate; 2161. a top plate; 2162. a first side plate; 2163. A hand holding part; 22. a second molding block; 221. a second cover plate; 222. a second butt joint plate; 2221. a second boss; 2222. a support block; 2223. a butting block; 2224. a U-shaped groove; 223. a second abutting surface; 23. sliding the insert; 231. a first cover plate; 232. a first butt joint plate; 2321. a second slip plane; 24. a forming table; 241. forming a bulge; 30. a lower die; 31. a lower template; 311. a lower plate body; 3111. mounting grooves; 312. a second side plate; 313. a third side plate; 314. an annular neck; 315. accommodating grooves; 32. a first molding block; 321. forming a groove; 322. a first outer wall surface; 323. a second outer wall surface; 324. a first slip plane; 33. a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5 and fig. 11, the present invention provides a hot bending mold for hot bending a flat glass sheet into a curved glass sheet 10 with an excessively large edge bending angle (i.e. an excessively large back-off angle). The hot bending die is made of graphene.

In this embodiment, the hot bending mold includes an upper mold 20 and a lower mold 30 fastened to the upper mold 20, the lower mold 30 includes a lower mold plate 31 and two first molding blocks 32, the lower mold plate 31 has two mounting grooves 3111 arranged at intervals along a length direction thereof, the two first molding blocks 32 are horizontally slidably mounted on the two mounting grooves 3111, and the lower mold plate 31 and the two first molding blocks 32 enclose a cavity 33 for placing the planar glass plate.

Referring to fig. 6 to 8, the upper mold 20 includes an upper mold plate 21, two second forming blocks 22 and two sliding inserts 23, the upper mold plate 21 has two first mounting holes 2121 spaced apart from each other, two second mounting holes 2122 spaced apart from each other, and a supporting base 213 located between the two second mounting holes 2122, the two second mounting holes 2122 are located between the two first mounting holes 2121, the two second forming blocks 22 are respectively mounted in the two second mounting holes 2122 and enclose the supporting base 213 to form a forming table 24 for pressing the flat glass plate, the two sliding inserts 23 are respectively slidably mounted on the two first mounting holes 2121 and respectively abut against the two first forming blocks 32 to push the first forming blocks 32 to move horizontally toward one side of the forming table 24, one side of the first forming block 32 facing the supporting base 213 is provided with a forming groove 321, the forming table 24 is correspondingly provided with a forming protrusion 241 matching with the forming groove 321, cavity 33 and forming table 24 enclose a hot bending cavity for hot bending curved glass sheet 10.

The first forming block 32 has a first outer wall 322 far from the lower mold plate 31, a second outer wall 323 opposite to the first outer wall 322, and a first sliding surface 324 far from the cavity 33, the first sliding surfaces 324 are located between the first outer wall surface 322 and the second outer wall surface 323, one end of each first sliding surface is connected with the first outer wall surface 322, the other end of each first sliding surface 324 extends obliquely towards one side of the second outer wall surface 323, the distance between the two first sliding surfaces 324 gradually increases from one side close to the first outer wall surface 322 to one side close to the second outer wall surface 323, the sliding insert 23 is correspondingly provided with a second sliding surface 2321 matched with the first sliding surfaces 324, the forming groove 321 is arranged at one side of the first forming block 32 far from the first sliding surface 324, preferably, the first sliding surfaces 324 and the second sliding surfaces 2321 are inclined surfaces, and the forming groove 321 and the forming protrusion 241 are both arc-shaped structures, so that the curved glass sheet 10 with the excessively large edge bending angle can be formed by hot bending.

Referring to fig. 9, as a preferred embodiment, the sliding insert 23 includes a first cover plate 231 and a first abutting plate 232 protruding from the first cover plate 231, a second sliding surface 2321 is disposed on the first abutting plate 232, an outer peripheral dimension of the first abutting plate 232 is smaller than an outer peripheral dimension of the first cover plate 231, a first step 2123 is concavely disposed on a side of an inner side wall of the first mounting hole 2121 away from the lower mold plate 31, and the sliding insert 23 slides along the first sliding surface 324 under the driving action of an external hot-pressing cylinder until the first cover plate 231 abuts against the first step 2123, so as to limit the sliding insert 23.

Referring to fig. 10, as a preferred embodiment, the second forming block 22 includes a second cover plate 221 and a second abutting plate 222 protruding on the second cover plate 221, the outer circumference of the second abutting plate 222 is smaller than the outer circumference of the second cover plate 221, a second step 2124 is concavely disposed on a side of an inner sidewall of the second mounting hole 2122 away from the lower mold plate 31, and the second cover plate 221 abuts against the second step 2124 to limit the second forming block 22.

The upper mold plate 21 includes a support plate 211 and a holding plate 216, the support plate 211 includes an upper plate body 212 and a support base 213 protruding from the bottom of the upper plate body 212, two first mounting holes 2121 and two second mounting holes 2122 are disposed at intervals on the upper plate body 212, the holding plate 216 includes a top plate 2161 and a plurality of first side plates 2162 protruding from two sides of the top plate 2161, a holding cavity 214 for inserting the holding plate 216 is disposed on one side of the upper plate body 212 away from the lower mold plate 31, two ends of the holding cavity 214 are respectively communicated with the two second mounting holes 2122, the holding plate 216 is mounted on the holding cavity 214, and a portion of the first side plate 2162 extends into the second mounting holes 2122 and abuts against the second molding blocks 22, so as to position the inserted second molding blocks 22 and prevent the inserted second molding blocks from being out of position.

In a preferred embodiment, the holding plate 216 is concavely provided with a grip portion 2163 to facilitate quick removal of the holding plate 216 before removing the curved glass sheet 10.

The supporting base 213 includes a first square boss 2131 and protruding end portions 2132 protruding from two sides of the first boss 2131, the first boss 2131 is connected to the upper plate 212, the size of the outer circumference of the protruding end portion 2132 gradually increases from the side close to the upper plate 212 to the side of the lower mold plate 31, the protruding end portion 2132 has a first abutting surface 2133 abutting against the second forming block 22, the second forming block 22 has a second abutting surface 223 engaging with the first abutting surface 2133, the protruding end portion 2132 and the second forming block 22 partially enclose the forming protrusion 241, preferably, both the first abutting surface 2133 and the second abutting surface 223 are inclined surfaces.

The second abutting plate 222 includes a second boss 2221, a supporting block 2222 and an abutting block 2223, which are connected in sequence, the second boss 2221 is connected with the second cover plate 221, the second boss 2221, the supporting block 2222 and the abutting block 2223 enclose a U-shaped groove 2224 for avoiding the first forming block 32, and the second abutting surface 223 is disposed on the abutting block 2223.

The lower mold plate 31 includes a lower plate body 311, two second side plates 312 disposed at an interval, and two third side plates 313 disposed at an interval, two ends of the second side plates 312 are respectively connected with the two third side plates 313 vertically, the second side plates 312 and the third side plates 313 are both protruded on the lower plate body 311, two mounting grooves 3111 are disposed on the lower plate body 311, and the mounting grooves 3111 are disposed in parallel with the third side plates 313.

As a preferred embodiment, the inner side wall of the lower template 31 is concavely provided with a ring-shaped slot 314, the upper template 21 is correspondingly provided with a ring-shaped third step 215 matched with the ring-shaped slot 314, and the upper template 21 can be quickly buckled in the ring-shaped slot 314 of the lower template 31 through the third step 215.

In a preferred embodiment, a receiving groove 315 for receiving the sliding insert 23 is concavely formed on one side of the second side plate 312 of the inner side wall of the lower mold plate 31, so as to reduce the overall size of the hot bending mold and make the internal structure of the hot bending mold more compact.

The application method of the hot bending die in the embodiment is as follows:

the step of hot bending a flat glass sheet into a curved glass sheet 10 is: firstly, the two first forming blocks 32 are respectively installed in the two installation grooves 3111, the flat glass plate is placed at a certain distance, the supporting plate 211 is placed on the lower template 31, the two second forming blocks 22 are respectively installed in the two second installation holes 2122, the clamping plate 216 is fixed, the two sliding inserts 23 are respectively installed in the two first installation holes 2121, the hot bending die is placed in the hot press and is hot-pressed under the action of the internal cylinder of the hot press, at the moment, the sliding inserts 23 downwards push the first forming blocks 32 to move towards one side of the supporting table 213 until the sliding inserts 23 are parallel to the upper template 21, and the hot bending is completed.

The steps of taking the curved glass sheet 10 out of the hot bending mold are as follows: the two slide inserts 23 are taken out, the clamping plate 216 is taken out, the two first forming blocks 32 are taken out, and the two second forming blocks 22 are taken out, so that the curved glass plate 10 is taken out.

In conclusion, the utility model can use a set of hot bending mould with the structure to process the curved glass plate 10 with the back-off and the back-off angle is too large by one-time hot pressing, thereby reducing the manufacturing cost; the upper mold plate 21, the lower mold plate 31, the first forming block 32, the second forming block 22 and the slide insert 23 can be disassembled from each other, so that the curved glass plate 10 can be taken out from the hot bending mold quickly.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a hot bending die, including last mould and with go up the lower mould of mould looks lock, its characterized in that: the lower die comprises two first forming blocks and a lower die plate with two mounting grooves, the two first forming blocks are slidably mounted on the two mounting grooves, the lower die plate and the two first forming blocks enclose and form a cavity for placing a plane glass plate, the upper die comprises an upper die plate, two second forming blocks and two sliding inserts, the upper die plate is provided with two first mounting holes, two second mounting holes and a supporting table positioned between the two second mounting holes, the two second mounting holes are positioned between the two first mounting holes, the two second forming blocks are respectively mounted in the two second mounting holes and enclose and form a forming table with the supporting table, the two sliding inserts are respectively slidably mounted on the two first mounting holes and respectively abut against the two first forming blocks to push the first forming blocks to horizontally move towards one side of the forming table, one side of the first forming block, which faces the supporting table, is provided with a forming groove, the forming table is correspondingly provided with a forming bulge matched with the forming groove, and the cavity and the forming table enclose a hot bending cavity for hot bending the curved glass plate.

2. The hot-bending die of claim 1, wherein: the first forming block is provided with a first outer wall surface far away from one side of the lower template, a second outer wall surface back to the first outer wall surface and a first sliding surface far away from one side of the cavity, the first sliding surface is located between the first outer wall surface and the second outer wall surface, one end of the first sliding surface is connected with the first outer wall surface, the other end of the first sliding surface extends towards one side of the second outer wall surface in an inclined mode, the distance between the two first sliding surfaces gradually increases from one side close to the first outer wall surface to one side close to the second outer wall surface, the sliding insert is correspondingly provided with a second sliding surface matched with the first sliding surface, and the forming groove is formed in one side, far away from the first sliding surface, of the first forming block.

3. The hot-bending die of claim 2, wherein: the sliding insert comprises a first cover plate and a first abutting plate convexly arranged on the first cover plate, the second sliding surface is arranged on the first abutting plate, the peripheral size of the first abutting plate is smaller than that of the first cover plate, a first step is concavely arranged on one side, away from the lower template, of the inner side wall of the first mounting hole, and the first cover plate abuts against the first step.

4. The hot-bending die of claim 2, wherein: the second forming block comprises a second cover plate and a second abutting plate which is convexly arranged on the second cover plate, the peripheral size of the second abutting plate is smaller than that of the second cover plate, a second step is concavely arranged on one side, far away from the lower template, of the inner side wall of the second mounting hole, and the second cover plate abuts against the second step.

5. The hot-bending die of claim 4, wherein: the utility model discloses a clamping device for a metal sheet, including last template, upper plate body and protruding the locating of upper plate body bottom, the upper plate body includes the backup pad and blocks the board, the backup pad includes the upper plate body and protruding locating the upper plate body bottom prop up supporting bench, two first mounting hole and two the second mounting hole is all located at the interval the upper plate body, block the board and include roof and protruding a plurality of first curb plates of locating the roof both sides, keeping away from of the upper plate body be equipped with on one side of lower bolster and be used for supplying block board insert and both ends respectively with two the chamber is blocked to the card that the second mounting hole communicates, block the board install in block intracavity and part are blocked to first curb plate stretch into in the second.

6. The hot-bending die of claim 5, wherein: the clamping plate is concavely provided with a hand holding part.

7. The hot-bending die of claim 5, wherein: the supporting table comprises a first boss connected with the upper plate body and protruding end portions arranged on two sides of the first boss in a protruding mode, the peripheral size of each protruding end portion is close to one side of the upper plate body and faces one side of the lower plate body, the protruding end portions are gradually increased in size, first abutting faces abutted to the second forming blocks are arranged on the protruding end portions, the second forming blocks are provided with second abutting faces matched with the first abutting faces, the first abutting faces and the second abutting faces are inclined planes, and the protruding end portions and the second forming block portions are enclosed to form protrusions.

8. The hot-bending die of claim 7, wherein: the second butt plate comprises a second boss, a supporting block and a butt block which are sequentially connected, the second boss is connected with the second cover plate, the second boss, the supporting block and the butt block enclose a U-shaped groove, and the second butt surface is arranged on the butt block.

9. The hot-bending die of claim 1, wherein: the lower template comprises a lower plate body, two second side plates arranged at intervals and two third side plates arranged at intervals, wherein two ends of each second side plate are respectively and vertically connected with the corresponding third side plates, the second side plates and the corresponding third side plates are arranged on the lower plate body in a protruding mode, and the mounting grooves are arranged on the lower plate body and are parallel to the third side plates.

10. The hot-bending die of claim 9, wherein: the inner side wall of the lower template is concavely provided with an annular clamping groove, and the upper template is correspondingly provided with an annular third step matched with the annular clamping groove.

Images