CN221319779U - Hot bending die - Google Patents

Abstract

The utility model provides a hot bending die, and belongs to the technical field of dies. The hot bending die solves the problem of reducing the replacement cost of the hot bending die while ensuring convenient demoulding. The hot bending die comprises an upper die, a middle die and a lower die, wherein the upper die is arranged in a lamination mode and provided with upper forming blocks, the middle die is internally provided with forming openings, the lower die is provided with lower forming blocks, the upper forming blocks and the lower forming blocks are respectively provided with two forming plates which are arranged oppositely in a one-to-one correspondence grouping mode, two sides in the forming openings are detachably connected with two forming plates which are arranged oppositely, a separation plate is detachably connected between the forming plates, and when the upper die and the lower die are clamped on the middle die, the upper forming blocks and the lower forming blocks are embedded in the forming openings, and the two forming blocks are matched with the lower forming blocks to form forming cavities on two sides of the separation plate. The hot bending die can ensure convenient demolding and reduce the replacement cost of the hot bending die.

Description

Hot bending die

Technical Field

The utility model belongs to the technical field of dies, and relates to a hot bending die.

Background

The hot bending die is a main jig for manufacturing the curved glass of the automobile in the prior art, such as a graphite die for manufacturing the curved glass of the automobile by hot bending disclosed in China patent (issued publication number: CN 207418580U), and comprises an upper die, a middle die and a lower die which are sequentially laminated from top to bottom; the upper die is provided with an upper die forming cambered surface, the middle die is provided with a middle die forming cavity, and the lower die is provided with a lower die forming cambered surface; the edge contour of the upper die forming cambered surface is in clearance fit with the middle die forming cavity, and the edge contour of the lower die forming cambered surface is in clearance fit with the middle die forming cavity; the upper die is provided with a guide boss; the middle die is provided with a guide groove which is in clearance fit with the guide boss; the lower die forming cambered surface is provided with an additional edge, the lower end of the middle die forming cavity is provided with a step, and the additional edge is matched with the step.

1-5, The comparison document is that the upper molding cambered surface on the upper die is matched with the middle die molding cavity in the middle die and the lower molding cambered surface on the lower die to bear the blank, and curved glass is formed after the blank is fully cooled, but the middle die molding cavity in the middle die has certain interference with finished glass when demoulding is carried out, so that the demoulding is very inconvenient, and certain damage can occur after long-time use, and certain defects exist in the subsequently produced glass, so that the die is required to be maintained periodically, namely the whole set of die is replaced regularly, but the cost of the mode is high.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a hot bending die, which aims to solve the technical problems that: how to reduce the replacement cost of the hot bending die while ensuring the convenience of demoulding.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a hot bending mould, includes the range upon range of setting and has the last mould of shaping piece, the interior well mould that has the shaping mouth and the lower mould that has the shaping piece down, its characterized in that, go up the shaping piece with the shaping piece down all has two and one-to-one grouping setting, the both sides in the shaping mouth can be dismantled and be connected with two shaping boards that set up relatively, just be located two can dismantle between the shaping board and be connected with the division board, works as go up the mould with the lower mould compound die in on the well mould, each go up the shaping piece with lower shaping piece embedding shaping mouth, and two sets of go up the shaping piece with the shaping board forms the shaping die cavity in division board both sides down.

The hot bending forming die is characterized in that two symmetrically arranged forming plates are arranged at two sides in the forming opening, a partition plate is arranged between the two forming plates in the forming opening, so that the forming opening is divided into two parts, the upper forming block arranged on the upper die and the lower forming block arranged on the lower die are respectively provided with two parts and are in one-to-one correspondence group arrangement, when the upper die and the lower die are both matched with the middle die, the two groups of upper forming blocks and lower forming blocks are embedded into the forming openings, and under the cooperation of the partition plate and the two forming plates, forming cavities are formed at two sides of the partition plate, so that two glass finished products can be directly formed in a hot-pressing mode at one time, the production efficiency of the die is improved, meanwhile, the two forming plates and the partition plate are used for replacing the stress on the inner wall of the forming opening, so that the damage to the middle die in the demolding process is reduced, the whole service life of the hot-bending die is prolonged, in the demolding process, due to the existence of the forming plates and the partition plate, a certain small gap can exist between the forming plates and the inner wall of the forming openings after the upper die is opened, air in the external environment can enter through the gap, and negative pressure can not be generated between the glass panel and the surface of the lower die after the hot-bending molding in the demolding process, therefore, the glass after hot bending molding is easier to take out when being sucked and demoulded through the suction pen, and the effect of convenient demould is realized; in addition, because each shaping board and division board all adopt the mode of detachable connection to install, later maintenance can directly change shaping board and division board can to need not to change whole mould, and then reduce the replacement cost to the hot bending mould.

In the above-mentioned hot bending die, the clamping grooves which are long-strip-shaped and curved and arc-shaped are formed in the inner walls of the two sides of the forming opening, the two forming plates are long-strip-shaped and curved and arc-shaped, and the two forming plates are clamped with the clamping grooves. The side shape of each shaping plate can effectively shape the edge of the shaped glass, so that the shaped glass finished product is ensured to meet the manufacturing standard, and meanwhile, the shaping plates are installed in a clamping manner, so that the convenience in dismounting the shaping plates is ensured.

In the hot bending die, the middle parts of the two ends of the forming port are provided with limiting grooves, and the two ends of the partition plate are respectively clamped with the two limiting grooves. The partition board is installed in a clamping manner, so that the convenience in disassembly and assembly of the partition board is guaranteed.

In the hot bending die, one side of the upper forming block and one side of the lower forming block of the same group are attached to the side wall of the partition plate, and the other side of the upper forming block and one side wall of the lower forming block are attached to the side wall of the partition plate. Therefore, two sides of each group of upper and lower forming blocks are attached to the partition plate and the forming plate, and the forming quality of later-stage glass is guaranteed.

In the hot bending die, the surface of each upper forming block is arranged in a protruding mode outwards and transits from the middle to the circumferential direction in an arc surface mode, and the surface of each lower forming block is arranged in a recessed mode inwards and transits from the middle to the circumferential edge in an arc surface mode. So as to ensure the full cooperation between the upper molding block and the lower molding block in the same group, and ensure that the radian of the side surfaces of two sides of the molded glass product is full.

Compared with the prior art, the hot bending die has the following advantages:

1. The inner side wall of the middle die forming opening is replaced by the partition plate and each forming plate to be in contact with glass in a high temperature state, so that the contact area of the glass and the forming opening is reduced, the damage of later-stage demolding to the forming opening and the glass is reduced, the service life of a hot bending die is ensured, the partition plate and each forming plate can be directly replaced in the later stage, the whole die is not required to be replaced, and the cost is lower.

2. During demolding, the glass can be directly sucked out through the suction pen, so that inconvenience in demolding caused by negative pressure is avoided.

3. Two sides of the partition plate are matched with the upper forming blocks of each group, the lower forming openings of each group and the forming plates in the middle die to form two forming cavities, and a plurality of pieces of glass can be simultaneously produced together at one time during manufacturing, so that the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the present hot bending die.

Fig. 2 is a schematic structural view of the present hot bending die in a die-separated state.

Fig. 3 is a cross-sectional view of the present hot-bending die.

Fig. 4 is a partial enlarged view at a in fig. 3.

Fig. 5 is a schematic structural view of the upper die.

Fig. 6 is a schematic view of the structure of the middle mold.

Fig. 7 is a schematic view of the structure of the lower die.

Fig. 8 is a schematic view of the structure of any one of the molded plates.

Fig. 9 is a schematic structural view of the partition plate.

In the figure, 1, an upper die; 11. an upper molding block; 2. middle mold; 21. forming a mouth; 211. forming a plate; 212. a partition plate; 213. a clamping groove; 214. a limit groove; 3. a lower die; 31. a lower molding block; 4. and forming a cavity.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-4, the hot bending die comprises an upper die 1, a middle die 2 and a lower die 3 which are sequentially overlapped from top to bottom, and with reference to fig. 5-6, the lower surface of the upper die 1 is provided with an upper forming block 11 which is arranged in a downward protruding manner, the middle die 2 is provided with forming openings 21 which penetrate through the side surfaces of the two sides of the upper forming block, and the upper surface of the lower die 3 is provided with a lower forming block 31 which is arranged in an upward protruding manner.

As shown in fig. 6, the forming opening 21 is specifically rectangular, two side inner walls of the forming opening 21 are provided with two elongated and curved clamping grooves 213, the bending mold in combination with fig. 8 and 9 comprises two forming plates 211 and a partition plate 212, the partition plate 212 and each forming plate 211 are elongated, each forming plate 211 is curved along a length direction, the two forming plates 211 are embedded in each clamping groove in a one-to-one correspondence manner for clamping and positioning, the middle parts of two ends of the forming opening 21 are provided with limiting grooves 214, and two ends of the partition plate 212 are respectively clamped and positioned with the two limiting grooves 214.

As shown in fig. 5 and 7, the upper molding block 11 and the lower molding block are respectively provided with two blocks and are arranged in a one-to-one correspondence manner, in a mold closing state, the two groups of upper molding blocks 11 and lower molding blocks 31 are respectively embedded into the molding openings 21 and positioned at two sides of the partition plate 212, each group of upper molding block 11 and lower molding block 31 are matched with the side wall of the partition plate 212, the side wall of the molding plate 211 and the inner wall of the molding opening 21 in a mold, two molding cavities 4 are formed in the mold closing state, one side edge of the upper molding block 11 and one side wall of the partition plate 212 of the same group of upper molding block 11 is attached to one side wall of one molding plate 211, in addition, the surfaces of the upper molding blocks 11 are outwards convexly arranged, the surfaces of the upper molding blocks 11 are transitionally in an arc surface, the surfaces of the lower molding blocks 31 are inwards concavely arranged, and the surfaces of the lower molding blocks 31 are transitionally in an arc surface from the middle to the circumferential edge.

The use and replacement principle: during production and processing, after the middle die 2 and the lower die 3 are clamped, glass is placed in the forming opening 21 and is abutted against the lower forming block 31, then the upper die 1 is clamped, after the dies are fully heated, the temperature of the placed glass reaches the temperature required during hot press forming, the upper die 1 is pressed downwards to perform hot press forming on the glass, after the hot press forming is finished, cooling is performed, demoulding is performed, when demoulding is performed, the upper die 1 is separated, and then the glass after the hot press forming is sucked out of the forming opening 21 through a suction pen; in addition, when the partition plate 212 or the forming plate 211 is worn or damaged after long-term use, the partition plate 212 or the forming plate 211 which is originally installed in the forming port is detached and then is installed into a new partition plate 212 or forming plate 211, and the whole die is not required to be replaced.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the upper die 1, the upper molding block 11, the middle die 2, the molding opening 21, the molding plate 211, the partition plate 212, the clamping groove 213, the limiting groove 214, the lower die 3, the lower molding block 31, the molding cavity 4, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (5)

1. The utility model provides a hot bending mould, includes that range upon range of setting and have last mould (1) of shaping piece (11), inside well mould (2) that have shaping mouth (21) and have lower mould (3) of shaping piece (31), its characterized in that, go up shaping piece (11) with shaping piece (31) all have two and one-to-one group setting down, both sides in shaping mouth (21) can be dismantled and be connected with two shaping boards (211) that set up relatively, just be located two in shaping mouth (21) can dismantle between shaping board (211) and be connected with division board (212), works as go up mould (1) with lower mould (3) compound die in on well mould (2), each go up shaping piece (11) with lower shaping piece (31) embedding shaping mouth (21), and two sets of go up shaping piece (11) with lower shaping piece (31) cooperate shaping board (211) form die cavity (4) in division board both sides.

2. The hot bending die according to claim 1, wherein two side inner walls of the forming opening (21) are provided with a clamping groove (213) which is long-strip-shaped and curved in an arc shape, two forming plates (211) are long-strip-shaped and curved in an arc shape, and the two forming plates (211) are clamped with the clamping groove (213).

3. The hot bending die as claimed in claim 2, wherein the middle parts of the two ends of the forming opening (21) are provided with limiting grooves (214), and the two ends of the partition plate (212) are respectively clamped with the two limiting grooves (214).

4. A hot-bending mould according to claim 3, characterized in that the upper forming blocks (11) and the lower forming blocks (31) of the same group are in contact with the side walls of the dividing plate (212) on one side and with one of the forming plates (211) on the other side.

5. A hot-bending die according to any one of claims 1-4, wherein each upper molding block (11) is provided convexly outwards and transitionally cambered from the middle to the circumferential direction, and each lower molding block (31) is provided concavely inwards and transitionally cambered from the middle to the circumferential edge.