CN215151465U

CN215151465U - Optical lens mould for preventing eccentricity

Info

Publication number: CN215151465U
Application number: CN202023351090.9U
Authority: CN
Inventors: 刘雪石; 谢志波
Original assignee: Dongguan Sun Optical Electronic Science & Technology Co ltd
Current assignee: Dongguan Sun Optical Electronic Science & Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-14
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to the technical field of molds, in particular to an optical lens mold for preventing eccentricity, which comprises a fixed plate, a mold foot plate arranged at the top of the fixed plate and a template arranged at the top of the mold foot plate; a cavity is arranged in the shaping plate; a movable cavity is arranged between the mould foot plate and the mould plate; the movable cavity is movably provided with an ejection mechanism; the ejection mechanism is used for ejecting the formed product out of the cavity; the ejection mechanism comprises an ejection plate, an ejection assembly arranged on the ejection plate and a driving assembly used for driving the ejection plate to lift; a plurality of guide bushings are arranged in the shaping plate; a ball guide sleeve is arranged in the guide bush; the ejection plate is provided with a linear rod movably sleeved on the ball guide sleeve. The utility model discloses because the liftout plate runs through linear pole completely and fixes a position through ball guide pin bushing and guide bush to make the liftout plate can move steadily at the process of rising and decline in-process, thereby can prevent to take place eccentric phenomenon when ejecting.

Description

Optical lens mould for preventing eccentricity

Technical Field

The utility model relates to the technical field of mold, concretely relates to prevent eccentric optical lens piece mould.

Background

With the rapid coming of the 5G era, the demand for the camera lens loaded in the automobile intelligence industry and the electronic industry such as smart phones, security systems and vehicle-mounted industries is continuously increased, so that the development of the optical lens manufacturing industry is driven, the demand for the optical lens is continuously increased, and how to improve the productivity and quality of the optical lens becomes an important problem to be solved urgently.

The eccentricity requirement on the lens of the current optical mold is higher and higher, the eccentricity of the lens of the mobile phone is poor, so that the whole lens module is scrapped, the eccentricity problem of the lens is always a pain point in the industry, the eccentricity of the lens is scrapped due to the fact that the lens is eccentric under the following conditions, the processing precision is insufficient, the assembling capability is insufficient, the actuation in the molding process of the mold is unstable, and the like, so that the balance and smooth ejection of the lens in the injection molding process are key problems in the injection molding production process.

The ejector mechanism of a common mold is ejector pins for ejection, but the problem of eccentricity is easily caused due to unstable motion of an ejector plate, and for the problem of eccentricity of a high-order optical lens, a novel mold core ejection mechanism is urgently needed to solve the eccentricity problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned not enough among the prior art, provide a prevent eccentric optical lens piece mould.

The purpose of the utility model is realized through the following technical scheme: an optical lens mould for preventing eccentricity comprises a fixed plate, a mould foot plate arranged at the top of the fixed plate and a template arranged at the top of the mould foot plate; a cavity is arranged in the shaping plate;

a movable cavity is arranged between the mould foot plate and the mould plate; the movable cavity is movably provided with an ejection mechanism; the ejection mechanism is used for ejecting the formed product out of the cavity; the ejection mechanism comprises an ejection plate, an ejection assembly arranged on the ejection plate and a driving assembly used for driving the ejection plate to lift;

a plurality of guide bushings are arranged in the shaping plate; a ball guide sleeve is arranged in the guide bush; the ejection plate is provided with a linear rod movably sleeved on the ball guide sleeve.

The utility model is further arranged that the top of the cavity is provided with a forming bush; the ejection assembly comprises a mold core movably arranged in the mold cavity; the forming bush is provided with a through hole for the mold core to pass through; the mold core is arranged on the ejector plate.

The utility model discloses further set up to, be equipped with the gasket between mould benevolence and the liftout plate.

The utility model is further provided with that the driving component comprises a linear bearing arranged on the die foot plate, an ejector rod movably sleeved in the linear bearing and an ejector insert movably arranged on the fixed plate; one end of the ejector rod is connected with the ejector plate; the other end of the ejector rod is connected with the ejector insert.

The utility model discloses further set up to, the ejector pin the center of ejector plate bottom is located to one end.

The utility model discloses further set up as, the ejector pin the other end is equipped with the cup head screw with ejecting between inserting.

The utility model is further provided with a mould foot insert block arranged on the mould foot plate; the movable cavity consists of a mould foot plate, a mould foot insert and a shaping plate; the template is arranged on the top of the die leg insert and the die leg plate.

The utility model is further arranged that a supporting head is arranged in the movable cavity; the supporting head is arranged between the template foot plate and the template; the ejecting plate is sleeved outside the supporting head.

The utility model is further arranged that the number of the guide bush, the ball guide sleeve and the linear rod is four; the four guide bushings are arranged on the periphery of the template at equal intervals; the four linear rods are arranged around the top of the ejector plate at equal intervals.

The utility model has the advantages that: the utility model discloses because the liftout plate runs through linear pole completely and fixes a position through ball guide pin bushing and guide bush to make the liftout plate can move steadily at the process of rising and decline in-process, thereby can prevent to take place eccentric phenomenon when ejecting.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view of the ejector plate of the present invention in its rest position;

fig. 3 is a cross-sectional view of the ejector plate of the present invention during ejection;

wherein: 1. a fixing plate; 2. a mold base plate; 21. a molding leg insert; 3. a template; 31. a cavity; 4. a movable cavity; 5. ejecting the plate; 61. forming a lining; 62. a mold core; 63. a gasket; 71. a linear bearing; 72. ejecting the rod; 73. ejecting the insert; 74. a cup head screw; 8. supporting a head; 91. a guide bush; 92. a ball guide sleeve; 93. a linear rod.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 to 3, the optical lens mold for preventing decentration in the present embodiment includes a fixing plate 1, a mold base plate 2 disposed on top of the fixing plate 1, and a mold plate 3 disposed on top of the mold base plate 2; a cavity 31 is arranged in the shaping plate 3;

a movable cavity 4 is arranged between the mould foot plate 2 and the mould plate 3; an ejection mechanism is movably arranged in the movable cavity 4; the ejection mechanism is used for ejecting the formed product from the cavity 31; the ejection mechanism comprises an ejection plate 5, an ejection assembly arranged on the ejection plate 5 and a driving assembly used for driving the ejection plate 5 to lift;

a plurality of guide bushings 91 are arranged in the template 3; a ball guide sleeve 92 is arranged in the guide bush 91; the ejector plate 5 is provided with a linear rod 93 movably sleeved on the ball guide sleeve 92.

Specifically, the optical lens mold of the present embodiment is a movable mold, and after being clamped with a fixed mold, injection molding of the optical lens can be performed in the cavity 31; after the injection molding is finished, the movable side mold and the fixed side mold are separated, then when the mold is ejected, the ejector plate 5 is driven by the driving assembly to move upwards, when the ejector plate 5 impacts the template 3, the ejector plate 5 does not move any more, so that the ejector assembly ejects the molded product in the cavity 31, and the demolding treatment of the molded product is finished; since the knock-out plate 5 completely penetrates the linear rod 93 and is positioned by the ball guide sleeve 92 and the guide bush 91, the knock-out plate 5 can stably move in the ascending and descending processes, and thus the occurrence of eccentricity in the knock-out can be prevented.

In the optical lens mold for preventing decentration according to the embodiment, a molding bushing 61 is disposed at the top of the cavity 31; the ejection assembly comprises a mold core 62 movably arranged in the mold cavity 31; the forming bush 61 is provided with a through hole for the mold core 62 to pass through; the mold core 62 is disposed on the ejector plate 5. Specifically, when the mold is ejected, the ejector plate 5 is moved upwards by the driving component, when the ejector plate 5 impacts the template 3, the ejector plate 5 does not move any more, and the mold core 62 ejects the formed product on the forming bush 61 completely, so that the lens can be ejected smoothly in the mold ejection stage, the problem of ejection traces of the traditional ejector pin cannot be left on the surface of the product, and the requirement of the optical lens on the eccentric high precision is met.

In the optical lens mold for preventing eccentricity of the present embodiment, a spacer 63 is disposed between the mold core 62 and the ejecting plate 5. The gasket 63 is arranged to facilitate the disassembly and assembly of the mold core 62 and the ejector plate 5, so that the mold cores 62 with different sizes can be replaced.

In the optical lens mold for preventing eccentricity of the present embodiment, the driving assembly includes a linear bearing 71 disposed on the mold base plate 2, an ejector rod 72 movably sleeved in the linear bearing 71, and an ejector insert 73 movably disposed on the fixing plate 1; one end of the ejector rod 72 is connected with the ejector plate 5; the other end of the ejector rod 72 is connected with an ejector insert 73. Specifically, when the ejector plate 5 needs to be raised, the outer ejector pins of the injection molding machine abut against the ejector inserts 73, so that the ejector plate 5 is driven to move upward by the ejector rods 72.

In the optical lens mold for preventing decentering according to the present embodiment, the one end of the ejector rod 72 is disposed at the center of the bottom of the ejector plate 5. The knock-out plate 5 can be smoothly raised by the above arrangement.

In the optical lens mold for preventing decentering according to this embodiment, a cup screw 74 is disposed between the other end of the ejector rod 72 and the ejector insert 73. The ejector rod 72 and the ejector insert 73 can be conveniently detached through the arrangement.

In the optical lens mold for preventing eccentricity of the present embodiment, the mold base plate 2 is provided with a mold base insert 21; the movable cavity 4 consists of a mould foot plate 2, a mould foot insert 21 and a shaping plate 3; the template 3 is arranged on the top of the mould foot insert 21 and the mould foot plate 2. The structure of the die is stable and reliable through the arrangement.

In the optical lens mold for preventing eccentricity of the present embodiment, a supporting head 8 is disposed in the movable cavity 4; the supporting head 8 is arranged between the mould foot plate 2 and the mould plate 3; the ejector plate 5 is sleeved outside the supporting head 8. Through the arrangement, the supporting force between the die foot plate 2 and the template 3 can be ensured, so that the structure of the die is more stable and reliable.

In the optical lens mold for preventing decentration according to this embodiment, the number of the guide bush 91, the number of the ball guide sleeve 92 and the number of the linear rods 93 are four; the four guide bushings 91 are arranged around the template 3 at equal intervals; the four linear rods 93 are arranged around the top of the ejector plate 5 at equal intervals. Specifically, in the present embodiment, by providing the four guide bushes 91, the ball guide 92, and the linear rod 93, the stability of the movement of the knock-out plate 5 can be further improved, thereby further preventing the occurrence of the eccentricity phenomenon.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An optical lens mold for preventing decentering, comprising: comprises a fixed plate (1), a mold foot plate (2) arranged at the top of the fixed plate (1) and a template (3) arranged at the top of the mold foot plate (2); a cavity (31) is arranged in the shaping plate (3);

a movable cavity (4) is arranged between the mould foot plate (2) and the mould plate (3); an ejection mechanism is movably arranged in the movable cavity (4); the ejection mechanism is used for ejecting the formed product from the cavity (31); the ejection mechanism comprises an ejection plate (5), an ejection assembly arranged on the ejection plate (5) and a driving assembly used for driving the ejection plate (5) to lift;

a plurality of guide bushings (91) are arranged in the shaping plate (3); a ball guide sleeve (92) is arranged in the guide bush (91); the ejection plate (5) is provided with a linear rod (93) movably sleeved on the ball guide sleeve (92).

2. An optical lens mold for preventing decentering according to claim 1, wherein: a forming bushing (61) is arranged at the top of the cavity (31); the ejection assembly comprises a mold core (62) movably arranged in the mold cavity (31); the forming bush (61) is provided with a through hole for the die core (62) to pass through; the mold core (62) is arranged on the ejector plate (5).

3. An optical lens mold for preventing decentering according to claim 2, wherein: a gasket (63) is arranged between the die core (62) and the ejector plate (5).

4. An optical lens mold for preventing decentering according to claim 1, wherein: the driving assembly comprises a linear bearing (71) arranged on the die foot plate (2), an ejection rod (72) movably sleeved in the linear bearing (71) and an ejection insert (73) movably arranged on the fixed plate (1); one end of the ejector rod (72) is connected with the ejector plate (5); the other end of the ejector rod (72) is connected with an ejector insert (73).

5. An eccentricity prevention optical lens mold as claimed in claim 4, wherein: one end of the ejector rod (72) is arranged at the center of the bottom of the ejector plate (5).

6. An eccentricity prevention optical lens mold as claimed in claim 4, wherein: a cup head screw (74) is arranged between the other end of the ejection rod (72) and the ejection insert (73).

7. An optical lens mold for preventing decentering according to claim 1, wherein: a mould foot insert (21) is arranged on the mould foot plate (2); the movable cavity (4) consists of a mould foot plate (2), a mould foot insert (21) and a shaping plate (3); the shaping plate (3) is arranged on the top of the mould foot insert (21) and the top of the mould foot plate (2).

8. An optical lens mold for preventing decentering according to claim 1, wherein: a supporting head (8) is arranged in the movable cavity (4); the supporting head (8) is arranged between the mould foot plate (2) and the mould plate (3); the ejector plate (5) is sleeved outside the supporting head (8).

9. An optical lens mold for preventing decentering according to claim 1, wherein: the number of the guide bush (91), the number of the ball guide sleeve (92) and the number of the linear rod (93) are four; the four guide bushings (91) are arranged around the template (3) at equal intervals; the four linear rods (93) are arranged around the top of the ejector plate (5) at equal intervals.