CN212655689U - Hot bending die - Google Patents

Abstract

The utility model discloses a hot bending die, including last mould and with the lower mould of last mould looks lock, the lower mould includes two shaping pieces and has the lower bolster of two mounting grooves, two shaping piece slidable mounting are on two mounting grooves, lower bolster and two shaping pieces enclose to close the cavity that forms and be used for placing the plane glass board, it includes the cope match-plate pattern to go up the mould, shaping panel and two slip mold inserts, the cope match-plate pattern just is located the support arch between two mounting holes including the upper plate body that has two mounting holes and the protruding bottom of locating the upper plate body, shaping panel card is inserted in the bellied bottom of support, two slip mold inserts respectively slidable mounting on two mounting holes and respectively the butt in two shaping pieces in order to promote shaping piece towards shaping panel one side horizontal migration, cavity and shaping panel enclose synthetic hot bending die cavity. The utility model discloses a when curved surface glass board need take out in the hot bending die, can demolish the slip mold insert earlier, dismantle the cope match-plate pattern again, remove two shaping pieces, then the shaping panel of buckling just can easily take out curved surface glass board.

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 mould, which comprises an upper mould and a lower mould buckled with the upper mould, the lower die comprises two forming blocks and a lower die plate with two mounting grooves, the two forming blocks are slidably mounted on the two mounting grooves, the lower template and the two forming blocks are enclosed to form a concave cavity for placing the plane glass plate, the upper die comprises an upper template, a forming panel and two sliding inserts, the upper template comprises an upper plate body with two mounting holes and a supporting bulge which is convexly arranged at the bottom of the upper plate body and is positioned between the two mounting holes, the molding panel card is inserted at the bottom of the supporting bulge, the two sliding inserts are respectively and slidably mounted on the two mounting holes and respectively abut against the two molding blocks to push the molding blocks to horizontally move towards one side of the molding panel, and the concave cavity and the molding panel are enclosed to form a hot bending cavity for hot bending the curved glass plate.

Further, the shaping panel includes the shaping curb plate that shaping bottom plate and two intervals set up, the both ends of shaping bottom plate respectively with two the bottom of shaping curb plate is connected and is enclosed the synthesis and be used for the card to insert support bellied U type groove, just the orientation of shaping curb plate one side of shaping piece is equipped with the shaping arch, the shaping piece corresponding be equipped with the protruding matched with shaping groove of shaping, the shaping arch with the shaping groove interval sets up.

Furthermore, a strip-shaped positioning block is convexly arranged on one side of the forming bottom plate facing the supporting protrusion, a positioning groove is correspondingly concavely arranged at the bottom of the supporting protrusion, and the positioning block is clamped in the positioning groove.

Furthermore, the 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, a second sliding surface matched with the first sliding surface is correspondingly arranged on the sliding insert, and the forming groove is formed in one side, far away from the first sliding surface, of the forming block.

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

Further, the first slip surface and the second slip surface are both inclined surfaces.

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

Furthermore, a receiving groove for receiving the sliding insert is concavely formed in one side, located on the second side plate, of the inner side wall of the mounting hole.

Furthermore, an annular clamping groove is concavely formed in the inner side wall of one side, facing the upper template, of the lower template, and an annular second step which is clamped and inserted 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 discloses an install a shaping panel in the support protruding bottom of cope match-plate pattern to the hot bending shaping goes out curved surface glass board, when curved surface glass board need take out, can demolish the slip mold insert earlier, dismantle the cope match-plate pattern again, remove two shaping pieces, then reuse the hand bending shaping panel in order to separate with curved surface glass board, and then can easily take out curved surface glass board;

and a set of hot-bending die with the structure can be used for processing the curved glass plate with the back-off and the back-off angle is too large by one-time hot pressing, so that the manufacturing cost is 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 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 view of a forming block provided in 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 schematic structural diagram of an upper template according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a slide insert according to an embodiment of the present invention;

fig. 10 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. an upper plate body; 2111. mounting holes; 212. a support boss; 2121. positioning a groove; 213. a first step; 214. a second step; 22. forming a panel; 221. forming a bottom plate; 2211. positioning blocks; 222. forming a side plate; 2221. forming a bulge; 223. a U-shaped groove; 23. sliding the insert; 231. a cover plate; 232. a butt joint plate; 2321. a second slip plane; 30. a lower die; 31. a lower template; 311. a lower plate body; 3111. mounting grooves; 312. a first side plate; 313. a second side plate; 314. accommodating grooves; 315. an annular neck; 32. forming a 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 10, 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 the upper mold 20 and the lower mold 30 buckled with the upper mold 20, the lower mold 30 includes two molding blocks 32 and the lower mold plate 31 having two mounting grooves 3111, the two mounting grooves 3111 are arranged on the lower mold plate 31 along the length direction of the lower mold plate 31 at intervals, the two molding blocks 32 can be horizontally slidably mounted on the two mounting grooves 3111, and the lower mold plate 31 and the two molding blocks 32 enclose to form a cavity 33 for placing the flat glass plate.

Referring to fig. 6 to 9, the upper mold 20 includes an upper mold plate 21, a forming panel 22 and two sliding inserts 23, the upper mold plate 21 includes an upper plate body 211 having two mounting holes 2111 and a supporting protrusion 212 protruding from the bottom of the upper plate body 211 and located between the two mounting holes 2111, the forming panel 22 is inserted at the bottom of the supporting protrusion 212, i.e. the side of the supporting protrusion 212 facing the lower mold plate 31, the two sliding inserts 23 are slidably mounted on the two mounting holes 2111 respectively and abut against the two forming blocks 32 respectively, when the sliding inserts 23 are pressed down, the sliding inserts 23 can push the forming blocks 32 to move horizontally towards the forming panel 22, and the cavity 33 and the forming panel 22 define a thermal bending cavity for thermally bending the curved glass sheet 10.

The forming panel 22 comprises a forming bottom plate 221 and two forming side plates 222 arranged at intervals, two ends of the forming bottom plate 221 are connected with the bottom ends of the two forming side plates 222 respectively and enclose a U-shaped groove 223 used for inserting the supporting protrusion 212, the forming panel 22 is fixed on the supporting protrusion 212 through the U-shaped groove 223, the forming bottom plate 221 and the two forming side plates 222 are integrally formed, a forming protrusion 2221 is arranged on one side of the forming side plate 222 facing the forming block 32, a forming groove 321 matched with the forming protrusion 2221 is correspondingly arranged on the forming block 32, the forming protrusion 2221 and the forming groove 321 are arranged at intervals, the middle part of the forming side plate is used for forming the curved glass plate 10, and the matching of the forming protrusion 2221 and the forming groove 321 can be used for hot bending the curved glass plate 10 with a larger bending angle. When the processed curved glass plate 10 needs to be taken out, the sliding insert 23 can be firstly removed, then the upper template 21 is removed, and then the forming panel 22 is bent by hand to be separated from the curved glass plate 10, so that the curved glass plate 10 can be easily taken out, and the forming panel 22 is a thin piece made of graphene and has certain toughness.

Preferably, a strip-shaped positioning block 2211 is further protruded from a side of the forming base 221 facing the supporting protrusion 212, a positioning groove 2121 is correspondingly recessed from a bottom of the supporting protrusion 212, and the positioning block 2211 is locked in the positioning groove 2121 to prevent the forming base 221 from being shifted relative to the supporting protrusion 212 during the hot bending process.

In this embodiment, the forming block 32 has a first outer wall 322 far away 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 away from the cavity 33, the first sliding surface 324 is located between the first outer wall 322 and the second outer wall 323, one end of the first sliding surface is connected to the first outer wall 322, the other end of the first sliding surface extends obliquely toward one side of the second outer wall 323, a distance between the two first sliding surfaces 324 increases gradually from a side close to the first outer wall 322 toward a side close to the second outer wall 323, the sliding insert 23 is correspondingly provided with a second sliding surface 2321 matching with the first sliding surface 324, and the forming groove 321 is provided on a side of the forming block 32 far away from the first sliding surface 324. Preferably, the first sliding surface 324 and the second sliding surface 2321 are inclined surfaces, and the forming groove 321 and the forming protrusion 2221 are arc-shaped structures, so as to facilitate the hot bending to form the curved glass sheet 10 with an excessively large edge bending angle.

The sliding insert 23 includes a cover plate 231 and an abutting plate 232 protruding from the bottom of the cover plate 231, the second sliding surface 2321 is disposed on the abutting plate 232, the outer peripheral dimension of the abutting plate 232 is smaller than the outer peripheral dimension of the cover plate 231, a first step 213 is concavely disposed on one side of the inner side wall of the mounting hole 2111, which is far away from the lower mold plate 31, the sliding insert 23 slides along the first sliding surface 324 under the driving action of an external hot-pressing cylinder until the cover plate 231 abuts against the first step 213, so that the sliding insert 23 is limited.

The lower template 31 comprises a lower plate body 311, two first side plates 312 arranged at intervals and two second side plates 313 arranged at intervals, two ends of each first side plate 312 are respectively and vertically connected with the two second side plates 313, the first side plates 312 and the second side plates 313 are both convexly arranged on the lower plate body 311, two mounting grooves 3111 are both concavely arranged at the top of the lower plate body 311, and the mounting grooves 3111 and the sliding inserts 23 are both arranged in parallel with the second side plates 313.

In a preferred embodiment, a receiving groove 314 for receiving the slide insert 23 is recessed on a side of the inner side wall of the mounting hole 2111 on the second side plate 313, and when the mold is specifically assembled, the slide insert 23 pushes the forming block 32 downward to move toward the forming panel 22, and at this time, the slide insert 23 is partially located above the mounting groove 3111, and another part is received in the receiving groove 314, so that the overall size of the hot bending mold can be reduced, and the internal structure of the hot bending mold can be more compact.

As a preferred embodiment, the inner sidewall of the lower mold plate 31 facing the upper mold plate 21 is concavely provided with a ring-shaped slot 315, the upper mold plate 21 is correspondingly provided with a ring-shaped second step 214 inserted into the ring-shaped slot 315, and the upper mold plate 21 can be quickly fastened in the ring-shaped slot 315 of the lower mold plate 31 through the second step 214, so as to facilitate the hot bending process.

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, respectively installing two molding blocks 32 in two installation grooves 3111, and pulling apart the distance, and placing a plane glass plate in a cavity 33; the forming panel 22 is mounted on the supporting protrusion 212 of the upper template 21, then the forming panel and the upper template are placed above the lower template 31 together, the two sliding inserts 23 are respectively mounted in the two mounting holes 2111, finally the hot bending die is placed in a hot press and hot-pressed under the action of an inner cylinder of the hot press, at the moment, the sliding inserts 23 downwards push the forming block 32 to move towards one side of the forming panel 22 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 upper mold plate 21 is taken away upwards, the two forming blocks 32 are moved towards two sides, and then the two forming side plates 222 on the forming panel 22 are pressed towards the middle to bend the forming panel 22 to separate from the curved glass plate 10, so that the curved glass plate 10 can be taken out easily.

To sum up, the utility model installs a forming panel 22 at the bottom of the supporting protrusion 212 of the upper mold plate 21, so as to form the curved glass plate 10 by hot bending, when the curved glass plate 10 needs to be taken out, the sliding insert 23 can be removed first, then the upper mold plate 21 is removed, the two forming blocks 32 are removed, then the forming panel 22 is bent by hand to be separated from the curved glass plate 10, and then the curved glass plate 10 can be taken out easily; moreover, the curved glass plate 10 with the inverted buckle and the oversized inverted buckle angle can be processed by one set of hot-bending die with the structure through hot pressing, so that the manufacturing cost is reduced.

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 (9)

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 forming blocks and a lower die plate with two mounting grooves, the two forming blocks are slidably mounted on the two mounting grooves, the lower die plate and the two forming blocks are enclosed to form a cavity for placing a plane glass plate, the upper die comprises an upper die plate, a forming panel and two sliding inserts, the upper die plate comprises an upper plate body with two mounting holes and a supporting bulge convexly arranged at the bottom of the upper plate body and positioned between the two mounting holes, the forming panel is clamped at the bottom of the supporting bulge, the two sliding inserts are respectively slidably mounted on the two mounting holes and respectively abut against the two forming blocks to push the forming blocks to horizontally move towards one side of the forming panel, and the cavity and the forming panel are enclosed to form a hot bending cavity for hot bending the curved glass plate.

2. The hot-bending die of claim 1, wherein: the shaping panel includes the shaping curb plate that shaping bottom plate and two intervals set up, the both ends of shaping bottom plate respectively with two the bottom of shaping curb plate is connected and is enclosed the synthetic card that is used for and insert support bellied U type groove, just the orientation of shaping curb plate one side of shaping piece is equipped with the shaping arch, the shaping piece corresponding be equipped with the protruding matched with shaping groove of shaping, the shaping arch with the shaping groove interval sets up.

3. The hot-bending die of claim 2, wherein: a strip-shaped positioning block is convexly arranged on one side of the forming bottom plate, which faces the supporting protrusion, a positioning groove is correspondingly and concavely arranged at the bottom of the supporting protrusion, and the positioning block is clamped in the positioning groove.

4. The hot-bending die of claim 2, wherein: the 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 forming block.

5. The hot-bending die of claim 4, wherein: the sliding insert comprises a cover plate and a butt plate convexly arranged at the bottom of the cover plate, the second sliding surface is arranged on the butt plate, the peripheral size of the butt plate is smaller than that of the cover plate, a first step is concavely arranged on one side, far away from the lower template, of the inner side wall of the mounting hole, and the cover plate is in butt joint with the first step.

6. The hot-bending die of claim 5, wherein: the first sliding surface and the second sliding surface are inclined surfaces.

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

8. The hot-bending die of claim 7, wherein: and one side of the inner side wall of the mounting hole, which is positioned on the second side plate, is concavely provided with a containing groove for containing the sliding insert.

9. The hot-bending die of claim 1, wherein: the inner side wall of one side of the lower template facing the upper template is concavely provided with an annular clamping groove, and the upper template is correspondingly provided with an annular second step which is clamped with the annular clamping groove.

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