CN211141883U

CN211141883U - Hot bending die

Info

Publication number: CN211141883U
Application number: CN201922128957.5U
Authority: CN
Inventors: 余华涛; 蔡基伟
Original assignee: Shenzhen Dongfang Carbon Industrial Co ltd
Current assignee: Shenzhen Dongfang Carbon Industrial Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-31
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a hot bending die, including last mould and the lower mould of last mould looks lock, the lower mould includes that lower bolster and two intervals locate the lower bolster top and respectively with lower bolster sliding connection's slip mold insert, two slip mold inserts and lower bolster enclose to close and form first cavity, it is protruding with the first location of butt in slip mold insert so that slip mold insert can be towards first boss one side horizontal migration to go up the mould and be provided with first boss and two and locate two outsides of first boss respectively, one side of the first boss of orientation of slip mold insert runs through along its axial and is equipped with the shaping groove, it is protruding with shaping groove matched with shaping that first boss is corresponding to be equipped with, and first cavity and first boss cooperation form the hot bending die cavity that is used for hot bending face glass board. The utility model discloses the hot bending die need overturn hot bending die earlier before hot pressing plane glass board, makes its lower mould overturn to the top, go up the mould upset to the bottom, can once only hot-pressing process out the curved surface glass board that the angle of buckling is too big with one set of this structure hot bending die.

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 an upper die with a concave cavity and a lower 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 upper die, the lower die is buckled on the upper die from the upper side, the boss of the lower die extends into the concave cavity of the upper 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 existing hot bending mold can only hot bend and form a curved glass plate with a small bending angle, and for curved glass plates with an inverted buckle and an excessively large inverted buckle angle (i.e. an excessively large bending angle), two sets of hot bending molds are adopted to respectively perform hot bending according to the process steps, so that the manufacturing cost is increased.

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 existing hot-bending mould can only be used for hot-bending forming of curved glass plates with smaller bending angles, and adopts two sets of hot-bending moulds to respectively carry out hot-bending processing on curved glass plates with inverted buckles and overlarge processing angles on the inverted buckles.

The utility model discloses a following technical scheme realizes:

the utility model provides a hot bending mould which is used for hot bending a plane glass plate into a curved glass plate with an overlarge edge bending angle, the hot bending die comprises an upper die and a lower die buckled with the upper die, the lower die comprises a lower die plate and two sliding inserts which are arranged above the lower die plate at intervals and are respectively connected with the lower die plate in a sliding manner, the two sliding inserts and the lower die plate are enclosed to form a first concave cavity, the upper die is provided with a first boss and two first positioning bulges which are respectively arranged at the two outer sides of the first boss and are abutted against the sliding insert so that the sliding insert can horizontally move towards one side of the first boss, one side of the sliding insert facing the first boss is provided with a forming groove along the axial direction, the first boss is correspondingly provided with a forming bulge matched with the forming groove, and the first concave cavity and the first boss are matched to form a hot bending cavity for hot bending the curved glass plate.

Further, go up the mould and include the cope match-plate pattern, protruding locating the cope match-plate pattern bottom first boss and two protruding locating the cope match-plate pattern bottom just is located first boss both sides first location is protruding, first location is protruding to have and keeps away from the first outer wall of cope match-plate pattern, with the second outer wall that first outer wall set up back to back and towards the first glide plane of first boss, the both ends of first glide plane respectively with first outer wall and the outer wall of second are connected, just first location is protruding to be followed the one end of first outer wall is with the gradually increasing form of peripheral dimension towards the outer wall of second extends the setting, the corresponding being equipped with of slip mold insert with first glide plane matched with second glide plane.

Furthermore, the lower template comprises a bottom plate, two first side plates and two second side plates, the two first side plates are respectively and vertically arranged on two sides of the bottom plate, the two second side plates are respectively and vertically arranged on the other two sides of the bottom plate, the first side plates are vertically connected with the second side plates, two accommodating grooves are formed in one side, facing the upper template, of the bottom plate at intervals, and the two sliding inserts are respectively and slidably arranged in the two accommodating grooves.

Furthermore, the orientation of first curb plate one side of slip mold insert is protruding to be equipped with spacing arch, spacing arch with first curb plate enclose close form with first location arch matched with dodge the groove.

Furthermore, the bottom plate comprises an outer plate and a second boss which is convexly arranged on one side of the outer plate, faces the first boss, and the second boss, the outer plate, the limiting protrusion and the two second side plates are enclosed to form the accommodating groove.

Furthermore, the upper die further comprises two second positioning protrusions which are convexly arranged at the bottom of the upper die plate and are respectively arranged on the other two outer sides of the first boss, a first clamping groove is concavely arranged on the second side plate, and the two second positioning protrusions are respectively inserted into the two first clamping grooves.

Furthermore, the upper die plate is provided with a through hole and a first annular bulge convexly arranged on the inner side wall of the through hole, the first annular bulge and the inner side wall of the through hole are enclosed to form a second clamping groove, and a second annular bulge which is abutted to the second clamping groove is correspondingly arranged on the outer side wall of the first boss.

Further, first boss includes two first support blocks that the interval set up and locates two second support blocks between the first support block, the shaping is protruding to be located keep away from of first support block one side of second support block, first support block and second support block all can be dismantled install in on the perforation.

Further, the second support block has a third outer wall surface far away from the upper die plate and a fourth outer wall surface arranged opposite to the third outer wall surface, and the second support block extends from the third outer wall surface to the fourth outer wall surface in a form of gradually increasing the peripheral size.

Further, go up the mould and be equipped with first fool-proofing structure, the lower mould be equipped with go up mould matched with second fool-proofing structure.

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

the utility model discloses a hot bending die need overturn hot bending die earlier before hot pressing plane glass board, make its lower mould upset to the top, go up the mould upset to the bottom, two slip mold inserts of hot bending die, the lower bolster forms the hot bending die cavity that is used for shaping curved surface glass board with first boss cooperation, when hot bending die hot pressing, two slip mold inserts can move down under the lower bolster effect and move towards one side of first boss simultaneously under the effect of first locating projection, two slip mold insert atresss are even, the curved surface glass board both sides thickness of hot bending out is more stable. One side of the sliding insert facing the first boss is provided with a forming groove in an axial penetrating mode, the first boss is correspondingly provided with a forming bulge matched with the forming groove to form a curved glass plate with an inverted buckle, therefore, the curved glass plate with the inverted buckle and an overlarge inverted buckle angle can be processed by one set of hot-bending die with the structure in a hot-pressing mode, and the manufacturing cost of the curved glass plate is further reduced.

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 at 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 view of a slide insert 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 a first schematic diagram illustrating an explosion of the upper mold according to an embodiment of the present invention;

fig. 8 is a second schematic diagram illustrating an explosion of the upper mold according to an embodiment of the present invention;

fig. 9 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; 11. reversing; 20. an upper die; 21. mounting a template; 211. perforating; 212. a first annular projection; 213. a second card slot; 214. a first fool-proof structure; 22. a first boss; 221. forming a bulge; 222. a second annular projection; 223. a first support block; 224. a second support block; 2241. a third outer wall surface; 2242. a fourth outer wall surface; 23. a first positioning projection; 231. a first outer wall surface; 232. a first slip plane; 24. a second positioning projection; 30. a lower die; 31. a lower template; 311. a base plate; 3111. accommodating grooves; 3112. an outer plate; 3113. a second boss; 312. a first side plate; 313. a second side plate; 3131. a first card slot; 314. a limiting bulge; 315. an avoidance groove; 316. a second fool-proof structure; 32. sliding the insert; 321. Forming a groove; 322. a second slip plane; 33. a first cavity; 40. and (4) hot bending the 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 and 9, according to the present invention, a hot bending mold made of graphene for hot bending a flat glass plate into a curved glass plate 10 with an excessively large edge bending angle (i.e. with an inverted buckle 11 and an excessively large angle of the inverted buckle 11) includes an upper mold 20 and a lower mold 30 fastened to the upper mold 20. It should be noted that after the flat glass sheet is placed in the hot bending mold in this embodiment, the whole hot bending mold needs to be turned over by 180 degrees, that is, the lower mold 30 is turned over to the top, the upper mold 20 is turned over to the bottom, and then the hot bending mold is placed in an external hot press to be hot-bent into the curved glass sheet 10.

Referring to fig. 2 to 4, in the present embodiment, the lower mold 30 includes a lower mold plate 31 and two sliding inserts 32, when in use, the two sliding inserts 32 are spaced above the lower mold plate 31 and are slidably connected to the lower mold plate 31, and the two sliding inserts 32 and the lower mold plate 31 enclose to form a first cavity 33.

Referring to fig. 6, the upper mold 20 includes an upper mold plate 21, a first boss 22, two first positioning protrusions 23 and two second positioning protrusions 24, the first boss 22, the two first positioning protrusions 23 and the two second positioning protrusions 24 are all protruded at the bottom of the upper mold plate 21, the two first positioning protrusions 23 are located at two sides of the first boss 22 to abut against the sliding insert 32, when the lower mold plate 31 is pressed down, the first positioning protrusions 23 can make the sliding insert 32 horizontally move toward one side of the first boss 22, so that the curved glass plate 10 with the inverted buckle 11 is hot-bent, and the two second positioning protrusions 24 are respectively located at the other two outer sides of the first boss 22 to be fixed with the lower mold 30, so as to prevent the upper mold 20 and the lower mold 30 from sliding with each other during the hot-pressing process of the hot-bending mold.

Referring to fig. 5, a forming groove 321 is axially formed on a side of the sliding insert 32 facing the first boss 22, a forming protrusion 221 corresponding to the forming groove 321 is correspondingly formed on the first boss 22, the flat glass sheet is placed between the first boss 22 and the lower mold plate 31, and the first cavity 33 and the first boss 22 cooperate to form a thermal bending cavity 40 for the thermal bending surface glass sheet 10, so that the thermal bending surface glass sheet 10 has an undercut 11 with an excessively large bending angle, preferably, the forming groove 321 and the forming protrusion 221 are both arc-shaped structures, thereby forming the curved glass sheet 10 with an excessively large edge bending angle on the flat glass sheet.

The first positioning protrusion 23 has a first outer wall 231 far away from the upper die plate 21, a second outer wall arranged opposite to the first outer wall 231, and a first sliding surface 232 facing the first boss 22, two ends of the first sliding surface 232 are respectively connected with the first outer wall 231 and the second outer wall, the first positioning protrusion 23 extends from one end of the first outer wall 231 to the second outer wall in a form of gradually increasing the peripheral size, the sliding insert 32 is correspondingly provided with a second sliding surface 322 matched with the first sliding surface 232, when the upper die 20 is pressed against the lower die 30, the sliding insert 32 is matched with the first positioning protrusion 23, and the sliding insert 32, the lower die plate 31 and the first boss 22 surround the hot bending die cavity 40.

In this embodiment, the lower mold plate 31 includes a bottom plate 311, two first side plates 312 respectively vertically disposed on two sides of the bottom plate 311, and two second side plates 313 respectively vertically disposed on the other two sides of the bottom plate 311, the first side plates 312 are vertically connected to the second side plates 313, a first locking groove 3131 is concavely disposed on an outer side wall of the second side plates 313, the two second positioning protrusions 24 are respectively inserted into the two first locking grooves 3131, two holding grooves 3111 disposed at intervals are disposed on one side of the bottom plate 311 facing the upper mold plate 21, and the two sliding inserts 32 are respectively slidably mounted in the two holding grooves 3111.

In a preferred embodiment, a limiting protrusion 314 is convexly disposed on a side of the first side plate 312 facing the sliding insert 32, and the limiting protrusion 314 and the first side plate 312 enclose to form an avoiding groove 315 matched with the first positioning protrusion 23, so as to reduce the overall size of the hot bending mold, and make the hot bending mold more compact.

The bottom plate 311 includes an outer plate 3112 and a second boss 3113, the outer dimension of the second boss 3113 is smaller than the outer dimension of the outer plate 3112, the second boss 3113 is protruded on one side of the outer plate 3112 facing the first boss 22, and the accommodating groove 3111 is formed by the second boss 3113, the outer plate 3112, the limiting protrusion 314 and the two second side plates 313.

Referring to fig. 7 and 8, as a preferred embodiment, the upper mold plate 21 is provided with a through hole 211 and a first annular protrusion 212 protruding from an inner side wall of the through hole 211, the first annular protrusion 212 and the inner side wall of the through hole 211 enclose to form a second locking groove 213, and the outer side wall of the first boss 22 is correspondingly provided with a second annular protrusion 222 abutting against the second locking groove 213, so as to fix the first boss 22 to the upper mold plate 21.

The first boss 22 comprises two first support blocks 223 arranged at intervals and a second support block 224 arranged between the two first support blocks 223, the forming protrusion 221 is arranged on one side of the first support block 223 far away from the second support block 224 along the length direction of the first support block 223, the second annular protrusion 222 is only arranged on the outer side walls of the first support block 223 and the second support block 224, the second annular protrusion 222 and the forming protrusion 221 are respectively arranged at two ends of the first boss 22, and the first support block 223 and the second support block 224 can be detachably mounted on the through hole 211 and can be detachably connected with the upper template 21.

Preferably, the second support block 224 has a third outer wall surface 2241 far from the upper mold plate 21 and a fourth outer wall surface 2242 opposite to the third outer wall surface 2241, the second support block 224 extends from the third outer wall surface 2241 to the fourth outer wall surface 2242 with the outer circumference gradually increasing, and the cross sections of the first support block 223 and the second support block 224 along the vertical axial direction are both trapezoidal structures, so that the first boss 22 can be quickly detached from the upper mold plate 21, and the curved glass sheet 10 can be finally taken out from the hot bending mold.

In this embodiment, the upper mold 20 is provided with a first fool-proof structure 214, and the lower mold 30 is provided with a second fool-proof structure 316 matched with the upper mold 20, so as to quickly assemble the hot bending mold when the hot bending mold is used in a later stage.

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, a plane glass plate is placed between a lower template 31 and a first boss 22, then a hot bending mould is placed in a hot press after being overturned for 180 degrees, at the moment, an upper mould 20 and a lower mould 30 are exchanged, the lower template 31 is hot-pressed under the action of an inner cylinder of the hot press, and a sliding insert 32 moves towards one side of the first boss 22 while moving downwards, so that the plane glass plate is hot-bent into a curved glass plate 10 with an inverted buckle 11 and an excessively large angle of the inverted buckle 11.

The steps of taking the curved glass sheet 10 out of the hot bending mold are as follows: the hot bending mold is taken out of the hot press, the whole hot bending mold is reset and turned over for 180 degrees, the upper mold 20 faces upwards at the moment, the second support block 224 on the upper mold 20 is taken out, the two first support blocks 223 are taken out, the upper mold plate 21 is taken out, and then the two sliding mold inserts 32 move back towards the two sides of the lower mold plate 31, so that the curved glass plate 10 can be taken out.

To sum up, the utility model discloses a hot bending mould need turn over hot bending mould earlier before hot pressing plane glass board, make its lower mould 30 overturn the top, go up mould 20 upset bottom, two slip mold inserts 32 of hot bending mould, lower bolster 31 and first boss 22 cooperation form the hot bending die cavity 40 that is used for shaping curved surface glass board 10, when hot bending mould hot bending, two slip mold inserts 32 can move down and move towards one side of first boss 22 simultaneously under the effect of first location arch 23 under the lower bolster 31 effect, two slip mold inserts 32 atress are even, the curved surface glass board 10 that hot bending goes out is better, and one side of the first boss 22 of orientation of slip mold insert 32 runs through along its axial and is equipped with shaping groove 321, first boss 22 is corresponding be equipped with shaping groove 321 matched with shaping arch 221, with the curved surface glass board 10 that forms to have back-off 11, therefore, can once only hot pressing process out with the hot bending mould of one set of this structure has back-off 11 and back-off 11 angle is too big The curved glass plate 10 of (1) further reduces the manufacturing cost of the curved glass plate 10.

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

1. The utility model provides a hot-bending die for with plane glass board hot-bending be the too big curved surface glass board of edge bending angle, its characterized in that: the hot bending die comprises an upper die and a lower die buckled with the upper die, the lower die comprises a lower die plate and two sliding inserts which are arranged above the lower die plate at intervals and are respectively in sliding connection with the lower die plate, the two sliding inserts and the lower die plate are enclosed to form a first cavity, the upper die is provided with a first boss and two first positioning bulges which are respectively arranged on the two outer sides of the first boss and are abutted to the sliding inserts so that the sliding inserts can horizontally move towards one side of the first boss, one side of the sliding inserts, which faces towards the first boss, is provided with a forming groove in an axial direction in a penetrating mode, the first boss is correspondingly provided with a forming bulge matched with the forming groove, and the first cavity and the first boss are matched to form a hot bending die cavity for hot bending the curved glass plate.

2. The hot-bending die of claim 1, wherein: the upper die comprises an upper die plate, a first boss and two protrusions, the first boss and the two protrusions are arranged at the bottom of the upper die plate and located on two sides of the first boss, the first positioning protrusion is provided with a first outer wall face away from the upper die plate, a second outer wall face back to back and facing towards the first outer wall face, the first sliding face of the first boss is arranged, two ends of the first sliding face are respectively connected with the first outer wall face and the second outer wall face, the first positioning protrusion is arranged at one end of the first outer wall face in a mode that the peripheral size is gradually increased towards the second outer wall face in an extending mode, and the sliding insert is correspondingly provided with a second sliding face matched with the first sliding face.

3. The hot-bending die of claim 2, wherein: the lower template comprises a bottom plate, two first side plates and two second side plates, the first side plates are respectively and vertically arranged on two sides of the bottom plate, the two second side plates are respectively and vertically arranged on the other two sides of the bottom plate, the first side plates are vertically connected with the second side plates, two accommodating grooves are formed in one side, facing the upper template, of the bottom plate at intervals, and the two sliding inserts are respectively and slidably arranged in the two accommodating grooves.

4. A hot-bending die according to claim 3, wherein: the first side plate faces one side of the sliding insert, a limiting bulge is convexly arranged, and the limiting bulge and the first side plate are enclosed to form an avoiding groove matched with the first positioning bulge.

5. The hot-bending die of claim 4, wherein: the bottom plate comprises an outer plate and a second boss convexly arranged on one side of the outer plate, which faces the first boss, and the second boss, the outer plate, the limiting protrusion and the two second side plates are enclosed to form the accommodating groove.

6. A hot-bending die according to claim 3, wherein: the upper die further comprises two second positioning bulges which are convexly arranged at the bottom of the upper die plate and are respectively arranged at the other two outer sides of the first boss, a first clamping groove is concavely arranged on the second side plate, and the two second positioning bulges are respectively inserted into the two first clamping grooves.

7. The hot-bending die of claim 2, wherein: the upper die plate is provided with a through hole and a first annular bulge convexly arranged on the inner side wall of the through hole, the first annular bulge and the inner side wall of the through hole are enclosed to form a second clamping groove, and a second annular bulge which is abutted to the second clamping groove is correspondingly arranged on the outer side wall of the first boss.

8. The hot-bending die of claim 7, wherein: first boss includes two first support blocks that the interval set up and locates two second support blocks between the first support block, the shaping is protruding to be located keep away from of first support block one side of second support block, first support block and second support block all can dismantle install in on the perforation.

9. The hot-bending die of claim 8, wherein: the second support block is provided with a third outer wall surface far away from the upper template and a fourth outer wall surface arranged opposite to the third outer wall surface, and the second support block extends from the third outer wall surface to the fourth outer wall surface in a mode that the peripheral size of the second support block is gradually increased.

10. The hot-bending die of claim 1, wherein: the upper die is provided with a first fool-proof structure, and the lower die is provided with a second fool-proof structure matched with the upper die.