CN209920440U

CN209920440U - LED TV curved surface back frame panel flip-chip injection mold

Info

Publication number: CN209920440U
Application number: CN201920348614.7U
Authority: CN
Inventors: 严雄文
Original assignee: ZHEJIANG DAXIONG PLASTIC MOULD CO Ltd
Current assignee: Zhejiang Dahong Model Co., Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-01-10
Anticipated expiration: 2029-03-19

Abstract

The utility model provides a frame panel flip-chip formula injection mold behind LED TV curved surface belongs to mould technical field. The die comprises a top plate, an upper die base and a lower die base, wherein a male die groove is formed in the upper die base, a first male die and a second male die are arranged in the male die groove, the end faces, away from one side of the male die groove, of the first male die and the second male die can be matched to form a first forming surface, a female die groove is formed in the lower die base, a female die is arranged in the female die groove, the end face, away from one side of the female die groove, of the female die is a second forming surface matched with the first forming surface, and the second forming surface is matched with. The utility model discloses fall into two with the terrace die and can let two terrace dies process simultaneously, both saved the time of terrace die processing, can also only need change the terrace die of damage part when the terrace die part damages, reduced the loss, improve work efficiency.

Description

LED TV curved surface back frame panel flip-chip injection mold

Technical Field

The utility model belongs to the technical field of the mould, a LED TV curved surface back frame panel flip-chip type injection mold is related to.

Background

Flip-chip mould is opposite with just adorning the mould, just adorn the concavo-convex mould of mould and all be located the upper die base, its ejecting part with annotate liquid opposite direction, and the concavo-convex mould of flip-chip mould all is located the die holder, the ejecting part of flip-chip mould is the same with annotating the liquid direction, generally speaking, the terrace die all processes as a whole, but when the terrace die is great and the structure is comparatively complicated, the processing of terrace die can consume a large amount of time, work efficiency is low, and when the terrace die part takes place to damage, whole terrace die all need be changed, the loss is great.

For example, the Chinese patent discloses an inverted injection mold (application number: CN201820277845.9), which comprises a fixed mold component, a movable mold component connected with the fixed mold component and an ejection device; the movable mould component comprises a movable mould plate, a bottom plate and a lower mould leg which enclose a lower space together; the fixed die assembly comprises a bearing plate, a fixed die plate and an upper die foot which are enclosed together to form an upper space; the ejection device comprises an ejection plate, an ejection pull rod and an elastic element, wherein the ejection pull rod is used for pulling the ejection plate to move relative to the fixed die assembly along the die opening direction of the movable die assembly when the die is opened, and the elastic element is arranged on the ejection plate. Compared with the prior art, the utility model provides a flip-chip type injection mold utilizes the mould power that opens and shuts of injection molding machine to be converted into ejecting device, and the movable mould subassembly can drive ejecting pull rod and remove and drive the liftout plate and remove when the die sinking to accomplish ejecting action, guarantee structural function promptly, simplify again and save the mould and make, the cost of the production of moulding plastics, and have the convenience of equipment and maintenance. The scheme solves the problem of product demoulding, but also has the defects of time consumption of male die processing and complete replacement of the damaged male die.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a frame panel flip-chip formula injection mold behind LED TV curved surface is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

an LED television curved surface rear frame panel flip-chip injection mold comprises a top plate, an upper mold base and a lower mold base, wherein a male mold groove is formed in the upper mold base, a first male mold and a second male mold are arranged in the male mold groove, and the end surfaces of the first male mold and the second male mold, which are far away from one sides of the male mold groove, can be matched to form a first molded surface;

a concave die groove is formed in the lower die base, a concave die is arranged in the concave die groove, the end face, away from the concave die groove, of the concave die is a second molding surface matched with the first molding surface, and the second molding surface is matched with the first molding surface to form a molding cavity;

the top plate is close to upper die base one side and is equipped with fixed plate and liftout plate, is equipped with a plurality of oblique tops on the liftout plate, terrace die tank bottom be equipped with a plurality of run through the upper die base and match suitable oblique apical groove with oblique top, be equipped with a plurality of and match suitable oblique apical hole with oblique top on terrace die and No. two terrace dies, oblique top can pass oblique apical groove and oblique apical hole and insert into the shaping chamber.

In foretell LED TV curved surface back frame panel flip-chip formula injection mold, No. one terrace die and No. two terrace dies zonulae occludens are equipped with three injection molding hole No. one on No. one terrace die and No. two terrace dies, and three injection molding hole No. one is not on same straight line, and one of them injection molding hole has one on No. one terrace die, and No. one injection molding hole has two on No. two terrace dies, and three injection molding hole bottom is equipped with the injection molding hole No. two that runs through a terrace die and No. two terrace dies, and this injection molding hole No. two communicates injection molding hole and shaping chamber.

In the LED television curved surface back frame panel flip-chip injection mold, the fixing plate is provided with a plurality of limiting baffles, a limiting groove is formed between the two limiting baffles, and the ejecting plate is provided with a plurality of limiting slide blocks matched with the limiting groove.

In the above-mentioned LED TV curved surface back frame panel flip-chip injection mold, be equipped with a plurality of gag lever posts on the end wall of roof near fixed plate one side, the gag lever post tip passes fixed plate, ejector plate and upper die base in proper order and inserts in the die holder.

In the LED television curved surface rear frame panel inverted injection mold, the periphery of the inclined top is also provided with the straight top fixed on the ejection plate, and the end part of the straight top sequentially penetrates through the upper mold base, the first male mold and the second male mold and is inserted into the molding cavity.

In foretell LED TV curved surface back frame panel flip-chip formula injection mold, be equipped with the liquid heating flow distribution plate of moulding plastics in the roof, liquid heating flow distribution plate one end of moulding plastics is equipped with three the same filling opening, and the liquid heating flow distribution plate other end of moulding plastics is equipped with three pipe of moulding plastics with the corresponding position of filling opening, three pipe end portion of moulding plastics and No. two injection holes corresponding.

In the above-mentioned inverted injection mold for the curved-surface rear frame panel of the LED television, the top plate is further provided with three assembly holes penetrating through the top plate and corresponding to the injection port, one of the assembly holes is provided with an injection-molded connecting piece, and the other two assembly holes are provided with sealing valves therein.

In the LED television curved surface rear frame panel inverted injection mold, the end part of the injection molding pipe sequentially penetrates through the fixing plate, the ejector plate, the upper mold base, the first male mold and the second male mold and is inserted into the first injection molding hole.

In the injection mold with the inverted LED television curved-surface back frame panel, a plurality of hot runners are wound around the injection opening, and the hot runners are independent.

In the LED television curved surface rear frame panel inverted injection mold, the top of the inclined top is matched with the edge bulge of a product.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses fall into two with the terrace die and can let two terrace dies process simultaneously, both saved the time of terrace die processing, can also only need change the terrace die of damage part when the terrace die part damages, reduced the loss, improve work efficiency.

2. The injection molding liquid heating flow distribution plate is provided with three injection ports, so that the injection ports can be selected freely and conveniently according to the requirements of different injection molding machines, and the injection molding machine is convenient to operate.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of an external structure provided by the present invention;

fig. 2 is an exploded view provided by the present invention;

FIG. 3 is an exploded view in another orientation;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is a schematic view of the internal structure of the present invention;

FIG. 6 is a schematic view of the external structure of the first punch and the second punch;

FIG. 7 is a structural schematic diagram of the punch No. one and the punch No. two in the other direction.

In the figure, a top plate 1, an upper die holder 2, a lower die holder 3, a punch groove 4, a first punch 5a, a second punch 5b, a first injection hole 5c, a second injection hole 5d, a first molding surface 6, a die groove 7, a die 8, a second molding surface 9, a molding cavity 10, a fixing plate 11, an ejector plate 12, an inclined top 13, an inclined top groove 14, an inclined top hole 15, a limit baffle 16, a limit groove 17, a limit slider 18, a limit rod 19, a straight top 20, an injection liquid heating flow distribution plate 21, an injection opening 22, an injection pipe 23, an assembly hole 24, an injection connecting piece 25, a sealing valve 26 and a hot runner 27.

Detailed Description

As shown in fig. 1-4, an injection mold with an inverted LED tv curved rear frame panel comprises a top plate 1, an upper mold base 2 and a lower mold base 3, wherein a male mold groove 4 is formed in the upper mold base 2, a first male mold 5a and a second male mold 5b are formed in the male mold groove 4, end surfaces of the first male mold 5a and the second male mold 5b, which are far away from one side of the male mold groove 4, can be matched to form a first molding surface 6, a female mold groove 7 is formed in the lower mold base 3, a female mold 8 is formed in the female mold groove 7, an end surface of the female mold 8, which is far away from one side of the female mold groove 7, is a second molding surface 9 matched with the first molding surface 6, the second molding surface 9 is matched with the first molding surface 6 to form a molding cavity 10, a fixing plate 11 and an ejector plate 12 are arranged on one side of the top plate 1, which is close to the upper mold base 2, a plurality of inclined ejectors 13 are arranged on the, the first male die 5a and the second male die 5b are provided with a plurality of inclined top holes 15 matched with the inclined tops 13, and the inclined tops 13 can penetrate through the inclined top grooves 14 and the inclined top holes 15 and are inserted into the forming cavity 10.

In this embodiment, half molding surfaces are respectively arranged on the first male die 5a and the second male die 5b, and the size and the shape of each half molding surface of the first male die 5a and the second male die 5b are different, so that the first molding surface 6 for injection molding is formed when the first male die 5a and the second male die 5b are tightly fitted, the two male dies can be divided into two parts, the two male dies can be simultaneously processed, the processing time of the male dies is saved, only the male die of the damaged part needs to be replaced when the male die part is damaged, the loss is reduced, and the working efficiency is improved.

The fixed plate 11 and the ejector plate 12 are located above the upper die base 2, the inclined ejector 13 is fixed on the ejector plate 12, the ejector plate 12 can move in a reciprocating linear mode between the fixed plate 11 and the upper die base 2, during demolding, the ejector plate 12 moves towards the upper die base 2 to drive the inclined ejector 13 to move, and demolding is conducted through the inclined ejector 13 inserted into the forming cavity 10.

The first male die 5a and the second male die 5b are tightly connected, three first injection holes 5c are formed in the first male die 5a and the second male die 5b, the three first injection holes 5c are not in the same straight line and are arranged in a triangular mode, one first injection hole 5c is formed in the first male die 5a, two first injection holes 5c are formed in the second male die 5b, a second injection hole 5d penetrating through the first male die 5a and the second male die 5b is formed in the bottom of the three first injection holes 5c, and the second injection hole 5d is communicated with the first injection hole 5c and the forming cavity 10.

In this embodiment, as shown in fig. 6 and 7, the three first injection holes 5c are arranged in a triangular shape, so that the injection liquid is distributed more uniformly, and the molding effect of the product is better.

The fixed plate 11 is provided with a plurality of limiting baffles 16, a limiting groove 17 is arranged between the two limiting baffles 16, and the ejector plate 12 is provided with a plurality of limiting slide blocks 18 matched with the limiting groove 17.

In this embodiment, as shown in fig. 2 and 3, the limiting groove 17 can prevent the ejector plate 12 from deviating in the moving direction, and can effectively prevent the mold from being damaged.

The end wall of one side of the top plate 1, which is close to the fixed plate 11, is provided with a plurality of limiting rods 19, and the end parts of the limiting rods 19 sequentially penetrate through the fixed plate 11, the ejector plate 12 and the upper die base 2 and are inserted into the lower die base 3.

In this embodiment, as shown in fig. 2 and 3, the limiting rod 19 can prevent the mold from shifting during mold opening, and can effectively prevent the surface of the product from being scratched.

A straight top 20 fixed on the ejector plate 12 is further arranged around the inclined top 13, and the end part of the straight top 20 sequentially penetrates through the upper die base 2, the first male die 5a and the second male die 5b and is inserted into the forming cavity 10.

In this embodiment, as shown in fig. 2 and 3, the straight ejector 20 is fixed to the ejector plate 12, can move with the ejector plate 12, and can assist the lifter 13 in demolding.

An injection molding liquid heating and shunting plate 21 is arranged in the top plate 1, one end of the injection molding liquid heating and shunting plate 21 is provided with three identical injection ports 22, three injection molding pipes 23 are arranged at the positions, corresponding to the injection ports 22, of the other end of the injection molding liquid heating and shunting plate 21, and the end parts of the three injection molding pipes 23 correspond to the second injection molding holes 5 d.

In this embodiment, the injection molding liquid heating flow distribution plate 21 can realize that one port inputs the injection molding liquid and output from a plurality of ports, and can also continuously heat the injection molding liquid in the process, thereby preventing the injection molding liquid from cooling, so that the injection molding efficiency can be increased and the heat loss can be reduced by conveniently injecting and outputting a plurality of ports, and the injection molding liquid heating flow distribution plate 21 is provided with three injection ports 22, so that the injection ports 22 which are convenient to select randomly can be injected according to the requirements of different injection molding machines, and the operation is convenient.

The top plate 1 is further provided with three assembly holes 24 which penetrate through the top plate 1 and correspond to the injection opening 22, wherein one assembly hole 24 is internally provided with an injection molding connecting piece 25, and sealing valves 26 are arranged in the other two assembly holes 24.

In this embodiment, and as shown in fig. 1-4, the injection connector 25 is used to connect to an injection molding machine and may be sealed with a sealing valve 26 when the other two sprues 22 are not in use.

The end part of the injection molding pipe 23 sequentially penetrates through the fixing plate 11, the ejector plate 12, the upper die holder 2, the first male die 5a and the second male die 5b and is inserted into the first injection molding hole 5c, a plurality of hot runners 27 are wound around the injection opening 22 and are independent, and the top of the inclined top 13 is matched with the edge bulge of the product.

In this embodiment, as shown in fig. 5, the hot runner 27 can heat the injection liquid at the sprue 22 and maintain the temperature of the injection liquid.

The using method of the mold comprises the steps of injecting injection liquid through an injection opening, simultaneously opening a hot runner to heat the injection liquid, then enabling the injection liquid to enter an injection liquid heating flow distribution plate through the injection opening for distribution, injecting the injection liquid into a first injection hole through an injection pipe after distribution, enabling the injection liquid to enter a molding cavity through a second injection hole, enabling the injection liquid to be full of the molding cavity, cooling the injection liquid, opening the mold through external acting force, and simultaneously demolding the product under the action of a straight top and an inclined top.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the top plate 1, the upper die holder 2, the lower die holder 3, the punch groove 4, the first punch 5a, the second punch 5b, the first injection hole 5c, the second injection hole 5d, the first molding surface 6, the die groove 7, the die 8, the second molding surface 9, the molding cavity 10, the fixing plate 11, the ejector plate 12, the lifter 13, the lifter groove 14, the lifter hole 15, the limit baffle 16, the limit groove 17, the limit slider 18, the limit rod 19, the straight top 20, the injection liquid heating and shunting plate 21, the sprue 22, the injection pipe 23, the fitting hole 24, the injection connector 25, the sealing valve 26, the hot runner 27, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. An LED television curved surface rear frame panel inverted injection mold comprises a top plate (1), an upper mold base (2) and a lower mold base (3), and is characterized in that a convex mold groove (4) is formed in the upper mold base (2), a first convex mold (5a) and a second convex mold (5b) are arranged in the convex mold groove (4), and the end faces of the first convex mold (5a) and the second convex mold (5b) far away from one side of the convex mold groove (4) can be matched to form a first molding surface (6);

a concave die groove (7) is formed in the lower die holder (3), a concave die (8) is arranged in the concave die groove (7), a second molding surface (9) matched with the first molding surface (6) is arranged on the end face, away from the concave die groove (7), of the concave die (8), and the second molding surface (9) is matched with the first molding surface (6) to form a molding cavity (10);

roof (1) is close to upper die base (2) one side and is equipped with fixed plate (11) and liftout plate (12), is equipped with a plurality of oblique summits (13) on liftout plate (12), protruding die cavity (4) bottom be equipped with a plurality of run through upper die base (2) and with oblique summit (13) match suitable oblique summit groove (14), be equipped with a plurality of on terrace die (5a) and No. two terrace die (5b) and match suitable oblique apical pore (15) with oblique summit (13), oblique summit (13) can pass oblique summit groove (14) and oblique apical pore (15) and insert in shaping chamber (10).

2. The LED television curved back frame panel flip-chip injection mold according to claim 1, wherein a first male mold (5a) and a second male mold (5b) are tightly connected, three first injection holes (5c) are formed in the first male mold (5a) and the second male mold (5b), the three first injection holes (5c) are not in the same straight line, one first injection hole (5c) is formed in the first male mold (5a), two first injection holes (5c) are formed in the second male mold (5b), a second injection hole (5d) penetrating through the first male mold (5a) and the second male mold (5b) is formed in the bottom of the three first injection holes (5c), and the second injection hole (5d) is communicated with the first injection hole (5c) and the molding cavity (10).

3. The LED television curved surface back frame panel flip-chip injection mold according to claim 2, wherein a plurality of limiting baffles (16) are arranged on the fixing plate (11), a limiting groove (17) is arranged between the two limiting baffles (16), and a plurality of limiting slide blocks (18) matched with the limiting groove (17) are arranged on the ejector plate (12).

4. The LED television curved surface rear frame panel flip-chip injection mold according to claim 3, wherein a plurality of limiting rods (19) are arranged on the end wall of one side of the top plate (1) close to the fixing plate (11), and the end parts of the limiting rods (19) sequentially penetrate through the fixing plate (11), the ejector plate (12) and the upper mold base (2) and are inserted into the lower mold base (3).

5. The LED television curved back frame panel flip-chip injection mold according to claim 4, wherein a straight top (20) fixed on the ejector plate (12) is further arranged around the inclined top (13), and the end of the straight top (20) sequentially passes through the upper mold base (2), the first male mold (5a) and the second male mold (5b) and is inserted into the molding cavity (10).

6. The LED television curved surface back frame panel flip-chip injection mold according to claim 5, wherein an injection liquid heating and shunting plate (21) is arranged in the top plate (1), one end of the injection liquid heating and shunting plate (21) is provided with three identical injection ports (22), the other end of the injection liquid heating and shunting plate (21) is provided with three injection molding pipes (23) at positions corresponding to the injection ports (22), and the end parts of the three injection molding pipes (23) correspond to the second injection molding holes (5 d).

7. The LED television curved back frame panel flip-chip injection mold according to claim 6, wherein the top plate (1) further comprises three assembly holes (24) penetrating the top plate (1) and corresponding to the injection opening (22), wherein one assembly hole (24) comprises an injection molding connector (25), and the other two assembly holes (24) comprise sealing valves (26).

8. The LED television curved back frame panel flip-chip injection mold according to claim 7, wherein the end of the injection molding pipe (23) passes through the fixed plate (11), the ejector plate (12), the upper mold base (2), the first punch (5a) and the second punch (5b) in sequence and is inserted into the first injection molding hole (5 c).

9. The LED television curved back frame panel flip-chip injection mold according to claim 8, wherein the injection port (22) is surrounded by a plurality of hot runners (27), and the plurality of hot runners are independent.

10. The LED television curved back frame panel flip-chip injection mold according to claim 9, wherein the top of the slanted ejecting part (13) is matched with the edge of the product.