CN218615141U

CN218615141U - Glasses frame injection mold

Info

Publication number: CN218615141U
Application number: CN202222270518.XU
Authority: CN
Inventors: 李金勇
Original assignee: Linhai Mingyuan Optical Mold Factory
Current assignee: Linhai Mingyuan Optical Mold Factory
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-03-14
Anticipated expiration: 2032-08-25

Abstract

The utility model discloses a glasses mirror holder injection mold belongs to injection mold technical field, including upper die base (1) and die holder (2), be provided with die cavity (3) and lower die cavity (4) on upper die base (1) and die holder (2) respectively relatively, be provided with runner (5) on upper die base (1), be provided with runner two (7) relative with runner (5) on die holder (2), runner two (7) communicate with each other with lower die cavity (4), the both ends of lower die cavity (4) all are provided with dog mould (8), through-hole mould (9) and drive dog mould (8) and driving piece, be provided with on upper die base (1) and die holder (2) respectively and go up shape setting plate (10) and shape setting plate (11) down, the utility model discloses can make the one shot injection moulding of screw hole on glasses mirror holder and the glasses mirror holder to can subduct the joint line of glasses mirror holder, can improve production efficiency, improve product quality.

Description

Glasses frame injection mold

Technical Field

The utility model belongs to the technical field of injection mold equipment, it relates to one kind specifically can make glasses mirror holder and screw hole one shot injection moulding glasses mirror holder injection mold to say so.

Background

The utility model discloses a be 2018 06 months 19 days in application date, the chinese utility model patent of application number 201820944635.0 discloses a glasses picture frame injection mold, its technical scheme main points include last die holder board, correspond the lower die seat board that sets up with last die holder board, set up in last mould benevolence between last die holder board and the lower die seat board and set up in last mould benevolence and the lower mould benevolence that corresponds with last mould benevolence, go up and seted up the die cavity under the mould benevolence on the terminal surface, seted up down the die cavity on the lower mould benevolence up end, the runner of die cavity is gone up in the intercommunication is seted up to the up end of going up the mould benevolence, the both sides of going up the die cavity extend on to die cavity direction under dorsad, set up the draw hole of intercommunication die cavity standing groove on the lateral wall of going up the mould benevolence, it is connected with the drawing needle that is used for fixed mold insert to draw in the downthehole to slide, it inserts or shifts out the drive arrangement who draws the hole to be provided with being used for driving on the mould benevolence, this utility model has the effect that can improve the production efficiency of product.

However, in the above injection mold for the spectacle frame, the screw hole at the connecting part of the spectacle frame and the hinge cannot be injection molded with the spectacle frame in one step in the mold, and the production efficiency is not high enough; and the spectacle frame obtained by the mould has an obvious joint line, so that the appearance is poor, and the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art in the screw hole can't be in the mould with the once injection moulding of glasses mirror holder and the thicker technical problem of glasses mirror holder joint line, provide one kind can make the once injection moulding of screw hole on glasses mirror holder and the glasses mirror holder and can subduct the glasses mirror holder injection mold of glasses mirror holder joint line, improve production efficiency, improve product quality.

In order to solve the technical problem, the utility model provides a glasses frame injection mold, including upper die base and die holder, upper die base and die holder on be provided with die cavity and lower die cavity relatively respectively, the upper die base on be provided with runner one, the up end of upper die base is provided with the feed port that is linked together with runner one, the die holder on be provided with runner two relative with runner one, runner two communicate with each other with lower die cavity, the both ends of die cavity all are provided with dog mould, through-hole mould and drive dog mould and through-hole mould horizontal migration's driving piece down, upper die base and die holder on be provided with setting plate and lower setting plate respectively, last setting plate and lower setting plate on seted up cavity groove one and cavity groove two respectively, cavity groove one and cavity groove two respectively relative with last die cavity and lower die cavity, the profile of cavity groove one and cavity groove two is unanimous with the profile of upper die cavity and lower die cavity respectively.

As a further improvement of the present invention, the above-mentioned injection mold for spectacle frame, said upper shaping plate comprises a first upper shaping plate and a second upper shaping plate, said first upper shaping plate and said second upper shaping plate cooperate to form a first cavity groove, said lower shaping plate comprises a first lower shaping plate and a second lower shaping plate, said first lower shaping plate and said second lower shaping plate cooperate to form a second cavity groove, so as to reduce the height of said first upper shaping plate and said second lower shaping plate, and reduce the loss of material.

As a further improvement of the utility model, foretell spectacle-frame injection mold, the driving piece including setting up actuating lever one and actuating lever two at the upper die base lower surface, actuating lever one and actuating lever two all outwards incline to set up, the both sides of die holder be provided with spout one and spout two respectively, spout one and spout two in be provided with slider one and slider two respectively, the dog mould set up on slider one, the through-hole mould set up on slider two, slider one and slider two on incline respectively and be provided with actuating lever one and actuating lever two complex through-hole one and through-hole two, cooperate with through-hole one and through-hole two respectively through actuating lever one and actuating lever two, make dog mould and through-hole mould be close to each other or the alternate segregation.

As the utility model discloses a further improvement measure, foretell a spectacle-frame injection mold, dog mould and the parallel dislocation set of through-hole mould, dog mould and through-hole mould can not disturb each other when removing like this.

As the utility model discloses a further improvement measure, foretell spectacle frame injection mold, lower die cavity in be provided with the lens mould, the lens mould on be provided with the demoulding hole, the demoulding hole in be provided with the fixed axle, the one end setting of fixed axle is on the die holder, the other end of fixed axle is provided with the stopper, when fashioned spectacle frame deciduates, the lens mould is spacing by the stopper, the spectacle frame breaks away from injection mold through deciduate mechanism.

As the utility model discloses a further improvement measure, foretell spectacle-frame injection mold, the below of die holder is provided with demoulding mechanism, demoulding mechanism include the bottom plate, bottom plate and die holder between be provided with the backup pad, the top of bottom plate is provided with the fly leaf, the die holder on be provided with the thimble, the one end setting of thimble is on the fly leaf, the other end setting of thimble is in two runners, demoulding mechanism work can make thimble longitudinal movement, the thimble can be with the ejecting injection mold of spectacle-frame.

As the utility model discloses a further improvement measure, foretell spectacle-frame injection mold, the upper die base on be provided with the release link, the release link setting on the fly leaf, be provided with the elastic component on the release link between fly leaf and the die holder, when demoulding mechanism work made the thimble shift up, the release link shifts up in step, and when the elastic component made the release link reset, can make the thimble reset in step.

As the utility model discloses a further improvement measure, foretell spectacle-frame injection mold, last shape fixing plate and last die holder between be provided with screw one, lower shape fixing plate and die holder between be provided with screw two, shape fixing plate is installed in the dismantlement of accessible screw one, shape fixing plate under the dismantlement installation through screw two.

As the utility model discloses a further improvement measure, foretell a glasses frame injection mold, the upper die base on be provided with the guide pillar, the die holder on be provided with guide pillar complex guide hole, the upper die base on be provided with the locking module piece, the die holder on be provided with locking module piece complex mode locking groove, can prevent like this that upper die base and die holder from misplacing, can make injection mold compound die more stable.

Compared with the prior art, the beneficial effects of the utility model reside in that: 1. by arranging the upper and lower shaping plates, when the upper and lower cavities of the mold are polished, the polishing precision can be improved, the joint line of the spectacle frame can be reduced, the spectacle frame formed by the injection mold has better attractiveness, and the product quality can be improved; 2. through setting up dog mould and through-hole mould, can make glasses mirror holder and screw hole injection moulding once, can improve production efficiency.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the upper die of the present invention.

Fig. 3 is a perspective view of the upper mold of the present invention without the upper setting plate.

Fig. 4 is a perspective view of the upper shape plate of the present invention.

Fig. 5 is a perspective view of the lower mold of the present invention.

Fig. 6 is a perspective view of the lower mold of the present invention without the lower setting plate.

Fig. 7 is an enlarged view of a portion a in fig. 6.

Fig. 8 is a perspective view of the lower shape plate of the present invention.

Fig. 9 is a perspective view of the stopper die and the through-hole die of the present invention.

The reference numbers illustrate: 1-upper die holder, 2-lower die holder, 3-upper die cavity, 4-lower die cavity, 5-first runner, 6-feed hole, 7-second runner, 8-stopper die, 9-through hole die, 10-upper shaping plate, 11-lower shaping plate, 12-first cavity groove, 13-second cavity groove, 14-first upper shaping plate, 15-second upper shaping plate, 16-first lower shaping plate, 17-second lower shaping plate, 18-first driving rod, 19-second driving rod, 20-first chute, 21-second chute, 22-first slider, 23-second slider, 24-first through hole, 25-second through hole, 26-lens die, 27-stripping hole, 28-fixed shaft, 29-limiting block, 30-bottom plate, 31-supporting plate, 32-movable plate, 33-ejector pin, 34-reset rod, 35-elastic element, 36-first screw, 37-second screw, 38-guide post, 39-guide hole, 40-locking module and 41-locking groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

As shown in fig. 1 to 3, 5 and 6, an injection mold for a spectacle frame comprises an upper mold base 1 and a lower mold base 2, wherein the upper mold base 1 and the lower mold base 2 are respectively provided with an upper mold cavity 3 and a lower mold cavity 4, the lower mold cavity 4 is internally provided with a lens mold 26, the lens mold 26 is used for molding a lens shape in the spectacle frame, when the upper mold base 1 and the lower mold base 2 are closed, the upper mold cavity 3 and the lower mold cavity 4 are closed, the lens mold 26 is abutted against the upper mold cavity 3 and the lower mold cavity 4, and at this time, the upper mold cavity 3, the lower mold cavity 4 and the lens mold 26 are matched to form a mold cavity of the spectacle frame; the upper die base 1 is provided with a first runner 5, the upper end face of the upper die base 1 is provided with a feed hole 6 communicated with the first runner 5, the injection molding machine performs injection molding on a die through the feed hole 6, the lower die base 2 is provided with a second runner 7 opposite to the first runner 5, the second runner 7 is communicated with the lower die cavity 4, when the upper die base 1 and the lower die base 2 are closed, the injection molding machine performs injection molding on the die through the feed hole 6, at the moment, the upper die cavity 3 and the lower die cavity 4 are closed, the first runner 5 and the second runner 7 are closed, injection molding liquid enters the first runner 5 and the second runner 7 and enters the upper die cavity 3 and the lower die cavity 4 through the first runner 5 and the second runner 7, and the glasses frame is molded among the lens die 26, the upper die cavity 3 and the lower die cavity 4.

As shown in fig. 1 to 6 and 8, an upper shaping plate 10 and a lower shaping plate 11 are respectively arranged on the upper die holder 1 and the lower die holder 2, the upper shaping plate 10 and the upper die holder 1 are fixed by a first screw 36, the lower shaping plate 11 and the lower die holder 2 are fixed by a second screw 37, a first cavity groove 12 is formed in the upper shaping plate 10, the first cavity groove 12 is opposite to the upper cavity 3, a second cavity groove 13 is formed in the lower shaping plate 11, the second cavity groove 13 is opposite to the lower cavity 4, and the profiles of the first cavity groove 12 and the second cavity groove 13 are respectively consistent with the profiles of the upper cavity 3 and the lower cavity 4. When polishing and grinding the upper cavity 3 and the lower cavity 4, if the upper shaping plate 10 and the lower shaping plate 11 are not arranged, the polishing cutter is easy to damage the upper cavity 3 and the lower cavity 4 of the mold, so that notches appear at corners of the upper cavity 3 and the upper mold base 1 and corners of the lower cavity 4 and the lower mold base 2, and the upper cavity 3 and the lower cavity 4 cannot be tightly jointed when the mold is closed, so that an obvious joint line exists in a formed product. An upper shaping plate 10 and a lower shaping plate 11 are arranged on the upper die base 1 and the lower die base 2, and an upper cavity 3 and a lower cavity 4 of the die can be polished and polished through a first cavity groove 12 and a second cavity groove 135, so that the upper cavity 3 and the lower cavity 4 cannot be damaged by a polishing cutter, the upper cavity 3 and the lower cavity 4 can be tightly screwed after die assembly, the die assembly line of the injection molded lens frame can be narrowed, and the product quality can be improved. After finishing polishing and grinding the mold, the upper shaping plate 10 can be removed by the first removing screw 28, the lower shaping plate 11 can be removed by the second removing screw 36, and the mold can be subjected to injection molding after the upper shaping plate 10 and the lower shaping plate 11 are removed.

The upper shaping plate 10 comprises an upper shaping plate I14 and an upper shaping plate II 15, the upper shaping plate I14 and the upper shaping plate II 15 are matched to form a cavity groove I12, the lower shaping plate 11 comprises a lower shaping plate I16 and a lower shaping plate II 17, the lower shaping plate I16 and the lower shaping plate II 17 are matched to form a cavity groove II 13, the upper shaping plate 10 and the upper cavity 3 have the same inclination due to the fact that the upper cavity 3 and the lower cavity 4 both have certain inclinations, the lower shaping plate 11 and the lower cavity 4 have the same inclination, if the upper shaping plate 10 or the lower shaping plate 11 is manufactured in a whole raw material, a large amount of materials need to be wasted due to the fact that the inclinations are high, therefore, the upper shaping plate 10 is divided into the upper shaping plate I14 and the upper shaping plate II 15, the lower shaping plate 11 is divided into the lower shaping plate I16 and the lower shaping plate II 17, the lengths of the upper shaping plate I14, the upper shaping plate II 15, the lower shaping plate I16 and the lower shaping plate II 17 are reduced, the height of the raw material is also reduced, and the production cost can be reduced.

As shown in fig. 1, 3, 6, 7 and 9, two ends of the lower cavity 4 are respectively provided with a stopper die 8, a through hole die 9 and a driving part for driving the stopper die 8 and the through hole die 9 to move horizontally, the stopper die 8 can extend into the second flow channel 7 and be matched with the lower die holder 2, so that the shapes of the two ends of the glasses frame are formed according to the stopper die 8, the through hole die 9 can extend into the second flow channel 7, and the formed glasses frame is provided with a through hole for mounting a screw, thereby facilitating the installation of a hinge.

The two sides of the lower die holder 2 are respectively provided with a first sliding groove 20 and a second sliding groove 21, a first sliding block 22 and a sliding block are respectively arranged in the first sliding groove 20 and the second sliding groove 21, the stop block die 8 is arranged on one side, opposite to the second sliding block 23, of the first sliding block 22, the through hole die 9 is arranged on one side, opposite to the first sliding block 22, of the second sliding block 23, the stop block die 8 and the through hole die 9 are arranged in a parallel staggered mode, and a first through hole 24 and a second through hole 25 are respectively obliquely arranged on the first sliding block 22 and the second sliding block 23. The driving piece comprises a first driving rod 18 and a second driving rod 19 which are arranged on the lower surface of the upper die base 1, the first driving rod 18 and the second driving rod 19 are both arranged obliquely outwards, and the first driving rod 18 and the second driving rod 19 are respectively matched with a first through hole 24 and a second through hole 25.

When the die is injected, the upper die base 1 moves downwards, the first driving rod 18 and the second driving rod 19 respectively enter the first through hole 24 and the second through hole 25, the first driving rod 18 drives the first slider 22 to move towards the inner side on the first sliding groove 20, the second driving rod 19 drives the second slider 23 to move towards the inner side on the second sliding groove 21, the stop block die 8 extends into the second flow channel 7, the end part of the stop block die 8 is abutted to the lower die base 2, the through hole die 9 extends out, the end part of the through hole die 9 is located in the second flow channel 7, the upper die base 1 is injected through the feeding hole 6 at the moment, and injection liquid enters the upper die cavity 3 and the lower die cavity 4 through the first flow channel 5 and the second flow channel 7. After the liquid of waiting to mould plastics solidifies, the glasses mirror holder is the shaping in last die cavity 3 and lower die cavity 4, and the both ends of glasses mirror holder are according to the shaping of dog mould 8, and the both ends of glasses mirror holder form the through-hole according to through-hole mould 9, and the through-hole can be used for installing the screw, makes things convenient for glasses mirror holder and earpiece to be connected. The upper die base 1 moves upwards to reset, the first driving rod 18 and the second driving rod 19 respectively leave the first through hole 24 and the second through hole 25, the first driving rod 18 drives the first sliding block 22 to move towards the outer side on the first sliding groove 20, the second driving rod 19 drives the second sliding block 23 to move towards the outer side on the second sliding groove 21, and the stop block die 8 and the through hole die 9 are far away from each other, so that the formed glasses frame can be conveniently unloaded.

As shown in fig. 1 to 3, 5, and 6, a guide post 38 is disposed on the upper die holder 1, and a guide hole 39 matched with the guide post 38 is disposed on the lower die holder 2, so that when the upper die holder 1 and the lower die holder 2 are assembled, the guide post 38 is inserted into the guide hole 39, so as to prevent the upper die holder 1 and the lower die holder 2 from being dislocated, and thus, the assembled die can be more stable, a locking module 40 is disposed on the upper die holder 1, and a locking groove 41 matched with the locking module 40 is disposed on the lower die holder 2, so that when the upper die holder 1 and the lower die holder 2 are assembled, the locking module 40 is matched with the locking groove 41 to lock the die, and thus, the upper die holder 1 and the lower die holder 2 are prevented from being dislocated, and the assembled die can be more stable.

As shown in fig. 1, 5, 6 and 7, a demolding mechanism is disposed below the lower die holder 2, the demolding mechanism is configured to demold a finished spectacle frame, the demolding mechanism includes a bottom plate 30, a supporting plate 31 is disposed between the bottom plate 30 and the lower die holder 2, a movable plate 32 is disposed above the bottom plate 30, the movable plate 32 is driven by an external driving mechanism to move longitudinally between the bottom plate 30 and the lower die holder 2, a thimble 33 is disposed on the lower die holder 2, the thimble 33 is configured to eject a molded product out of a mold, one end of the thimble 33 is disposed on the movable plate 32, the other end of the thimble 33 is disposed in the second runner 7, a reset rod 34 is disposed on the lower die holder 2, the reset rod 34 is configured to reset the ejected thimble 33, the reset rod 34 is disposed on the movable plate 32, an elastic element 35 is disposed on the reset rod 34 between the movable plate 32 and the lower die holder 2, and the elastic element 35 is configured as a spring; a demoulding hole 27 is formed in the lens mould 26, a fixing shaft 28 is arranged in the demoulding hole 27, one end of the fixing shaft 28 is arranged on the lower mould base 2, a limiting block 29 is arranged at the other end of the fixing shaft 28, and the limiting block 29 is used for limiting the position of the lens mould 26.

When the mold finishes injection molding and the upper mold base 1 and the lower mold base 2 are separated, the driving mechanism drives the movable plate 32 to move upwards to enable the ejector pins 33 and the reset rods 34 to move upwards synchronously, the elastic pieces 35 contract between the movable plate 32 and the lower mold base 2, the ejector pins 33 are arranged in the second flow channel 7, the lens molds 26 are still matched and clamped on the formed glasses frames, when the ejector pins 33 are pushed upwards, the lens molds 26 and the glasses frames can be pushed upwards synchronously until the lens molds 26 are in contact with the limiting blocks 29, the limiting blocks 29 limit the lens molds 26, the lens molds 26 do not move upwards any more, the ejector pins 33 push the glasses frames out of the mold, the lens molds 26 naturally fall back, after the glasses frames are pushed out of the mold, the elastic pieces 35 rebound and reset, the movable plate 32 resets, and the ejector pins 33 and the reset rods 34 move downwards synchronously to complete resetting.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make modifications and improvements without departing from the scope of the present invention.

Claims

1. An injection mold for a spectacle frame comprises an upper mold base (1) and a lower mold base (2), an upper cavity (3) and a lower cavity (4) are respectively and oppositely arranged on the upper die base (1) and the lower die base (2), a first runner (5) is arranged on the upper die base (1), a feeding hole (6) communicated with the first runner (5) is arranged on the upper end surface of the upper die base (1), a second runner (7) opposite to the first runner (5) is arranged on the lower die holder (2), the second runner (7) is communicated with the lower cavity (4), it is characterized in that both ends of the lower cavity (4) are provided with a stop block die (8), a through hole die (9) and a driving piece for driving the stop block die (8) and the through hole die (9) to move horizontally, the upper die holder (1) and the lower die holder (2) are respectively provided with an upper shaping plate (10) and a lower shaping plate (11), the upper shaping plate (10) and the lower shaping plate (11) are respectively provided with a first cavity groove (12) and a second cavity groove (13), the first cavity groove (12) and the second cavity groove (13) are respectively opposite to the upper cavity (3) and the lower cavity (4), the profiles of the cavity groove I (12) and the cavity groove II (13) are respectively consistent with the profiles of the upper cavity (3) and the lower cavity (4).

2. An injection mold for spectacle frames according to claim 1, wherein the upper shaping plate (10) comprises a first upper shaping plate (14) and a second upper shaping plate (15), the first upper shaping plate (14) and the second upper shaping plate (15) are matched to form a first cavity groove (12), the lower shaping plate (11) comprises a first lower shaping plate (16) and a second lower shaping plate (17), and the first lower shaping plate (16) and the second lower shaping plate (17) are matched to form a second cavity groove (13).

3. The injection mold for the spectacle frames according to claim 1, wherein the driving member comprises a first driving rod (18) and a second driving rod (19) which are arranged on the lower surface of the upper die holder (1), the first driving rod (18) and the second driving rod (19) are both arranged in an inclined manner outwards, a first sliding groove (20) and a second sliding groove (21) are respectively arranged on two sides of the lower die holder (2), a first sliding block (22) and a second sliding block (23) are respectively arranged in the first sliding groove (20) and the second sliding groove (21), the block die (8) is arranged on the first sliding block (22), the through hole die (9) is arranged on the second sliding block (23), and a first through hole (24) and a second through hole (25) which are matched with the first driving rod (18) and the second driving rod (19) are respectively arranged in an inclined manner on the first sliding block (22) and the second sliding block (23).

4. An injection mould for spectacle frames according to claim 3, characterised in that the stop mould (8) and the through hole mould (9) are arranged in parallel and offset.

5. An injection mold for spectacle frames according to any one of claims 1 to 4, wherein a lens mold (26) is arranged in the lower cavity (4), a demolding hole (27) is arranged on the lens mold (26), a fixed shaft (28) is arranged in the demolding hole (27), one end of the fixed shaft (28) is arranged on the lower mold base (2), and a limit block (29) is arranged at the other end of the fixed shaft (28).

6. An eyeglass frame injection mold as set forth in claim 5, wherein a demolding mechanism is disposed below the lower mold base (2), the demolding mechanism comprises a bottom plate (30), a supporting plate (31) is disposed between the bottom plate (30) and the lower mold base (2), a movable plate (32) is disposed above the bottom plate (30), a thimble (33) is disposed on the lower mold base (2), one end of the thimble (33) is disposed on the movable plate (32), and the other end of the thimble (33) is disposed in the second flow channel (7).

7. An injection mold for spectacle frames according to claim 6, characterized in that the upper mold base (1) is provided with a reset rod (34), the reset rod (34) is arranged on the movable plate (32), and the reset rod (34) between the movable plate (32) and the lower mold base (2) is provided with an elastic member (35).

8. An injection mold for spectacle frames according to claim 1, characterized in that a first screw (36) is arranged between the upper shape plate (10) and the upper die base (1), and a second screw (37) is arranged between the lower shape plate (11) and the lower die base (2).

9. An injection mold for spectacle frames according to claim 1, characterized in that the upper mold base (1) is provided with guide posts (38), the lower mold base (2) is provided with guide holes (39) matched with the guide posts (38), the upper mold base (1) is provided with locking modules (40), and the lower mold base (2) is provided with mold locking grooves (41) matched with the locking modules (40).