CN213260813U - Secondary feeding lens injection mold - Google Patents

Abstract

The utility model discloses a secondary feeding lens injection mold, which comprises a die body, the mould body includes fixed die plate, movable mould board and mold core assembly, mold core assembly is including being fixed in the lower mold core on the fixed die plate and setting up the last mold core assembly on the movable mould board, the top of lower mold core is equipped with a plurality of die cavity, still be equipped with respectively on the lower mold core with first sprue and the second sprue of die cavity intercommunication, go up the mold core assembly including be fixed in the adjusting cylinder on the movable mould board, be fixed in the fixed plate of adjusting cylinder output, be fixed in on the movable mould board and be corresponding to last mold core and a plurality of fixed plate below on the fixed plate and the bottom run through in the mould benevolence that goes up the mold core setting, mould benevolence and die. The utility model relates to a rationally, can carry out the secondary feeding as required during the use and mould plastics to the problem that the manufacturing cost height that the mould leads to and production efficiency is low that needs to be changed when avoiding the secondary to mould plastics is favorable to the popularization and application of marketization.

Description

Secondary feeding lens injection mold

Technical Field

The utility model relates to a lens processing technology field, concretely relates to secondary feeding lens injection mold.

Background

With the continuous improvement of the living standard and the requirement on the quality of substances of people, the requirements on the appearance and the function of the spectacle lenses are also continuously improved, so that in the prior art, a plurality of lenses can be prepared by injection molding twice or even for many times during production, and for the phenomenon, most of the common solutions at present are to prepare a plurality of sets of molds for sequential injection molding; now, two sets of molds are taken as an example to explain the injection molding process: firstly, carrying out injection molding in a first set of mold to prepare a primary injection product, and then putting the obtained primary injection product into a cavity of a second set of mold for continuous injection molding to obtain a secondary injection product; or after one-time injection molding in a set of mold, the male mold or the female mold is replaced to form different cavities, and then secondary injection molding is carried out to obtain a secondary injection product. By adopting the injection molding mode, the production cost and the process difficulty are increased, and the production efficiency is reduced, so that the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a secondary feeding lens injection mold, its reasonable in design can carry out the secondary feeding as required during the use and mould plastics to need the problem that the manufacturing cost height that the mould leads to and production efficiency hangs down of changing when avoiding the secondary to mould plastics.

The utility model adopts the following technical scheme:

the utility model provides a secondary feeding lens injection mold, includes the mould body, the mould body includes fixed die plate, movable mould board and sets up the mold core assembly between fixed die plate and movable mould board, the top of fixed die plate is equipped with down the mold core fixed slot, the bottom of movable mould board is equipped with the mold core fixed slot, the top of movable mould board still be equipped with last mold core fixed slot communicating last through-hole, the mold core assembly is including setting up the lower mold core in the mold core fixed slot down and setting up the last mold core assembly in last mold core fixed slot, the top of lower mold core is equipped with a plurality of die cavity, still be equipped with first sprue and second sprue on the lower mold core, first sprue communicates with a plurality of die cavity one by one respectively through a plurality of first sprue, the second sprue communicates with a plurality of die cavity one by one respectively through a plurality of second sprue, it includes adjusting cylinder core assembly, The adjustable die comprises a fixed plate, an upper die core and a plurality of die cores arranged in one-to-one correspondence with the die cavities, wherein the adjusting cylinder is fixed at the position of the top end of the movable die plate corresponding to an upper through hole, the output end of the adjusting cylinder penetrates through the upper through hole and extends into an upper die core fixing groove, the fixed plate is movably arranged in the upper die core fixing groove, the fixed plate is fixedly connected with the output end of the adjusting cylinder, the upper die core is fixed at the position of the lower portion of the fixed plate in the upper die core fixing groove, a plurality of sliding holes arranged in one-to-one correspondence with the die cores are formed in the upper die core, the die cores are slidably inserted into the corresponding sliding holes.

As an optimized technical scheme of the utility model, still be equipped with the exhaust duct that a plurality of and die cavity one-to-one set up on the lower mold core.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, high durability and convenient use, wherein be provided with two sprue that are used for moulding plastics the feeding, adjustable mode will be set to with die cavity complex mould benevolence simultaneously, can adjust the size of the die cavity that forms between mould benevolence and the die cavity as required when using, so that can carry out the secondary feeding when moulding plastics under the condition that need not to change the mould core subassembly and mould plastics, thereby the problem that the manufacturing cost height and the production efficiency are low that need change the mould and lead to when avoiding the secondary to mould plastics, be favorable to the production of industrialization to be used.

Drawings

FIG. 1 is a schematic cross-sectional view of a secondary feeding lens injection mold of the present invention;

fig. 2 is a schematic top view of the lower mold core of the present invention;

the symbols in the drawings illustrate that:

the mold comprises a fixed mold plate 1, a movable mold plate 2, a lower mold core fixing groove 3, an upper mold core fixing groove 4, a lower mold core 5, a mold cavity 6, a first main runner 7, a second main runner 8, a first sub-runner 9, a second sub-runner 10, a regulating cylinder 11, a fixing plate 12, an upper mold core 13, a mold core 14 and an exhaust groove 15.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a secondary feeding lens injection mold comprises a mold body, wherein the mold body comprises a fixed mold plate 1, a movable mold plate 2 and a mold core assembly arranged between the fixed mold plate 1 and the movable mold plate 2, a lower mold core fixing groove 3 is arranged at the top end of the fixed mold plate 1, an upper mold core fixing groove 4 is arranged at the bottom end of the movable mold plate 2, an upper through hole (not marked in the figure) communicated with the upper mold core fixing groove 4 is further arranged at the top end of the movable mold plate 2, the mold core assembly comprises a lower mold core 5 arranged in the lower mold core fixing groove 3 and an upper mold core assembly arranged in the upper mold core fixing groove 4, and specifically, in this embodiment, the lower mold core 5 is fixedly connected with the upper mold core fixing groove 3 through a screw; the top end of the lower die core 5 is provided with a plurality of die cavities 6, in this embodiment, the number of the die cavities 6 is two, and in the actual application process, a person skilled in the art can determine the specific number of the die cavities 6 according to actual needs; the lower die core 5 is further provided with a first main runner 7 for primary injection molding feeding and a second main runner 8 for secondary injection molding feeding, the first main runner 7 is respectively communicated with the plurality of die cavities 6 one by one through a plurality of first branch runners 9, specifically, in this embodiment, the number of the first branch runners 9 is two, that is, the first main runner 7 is respectively communicated with the two die cavities 6 one by one through the two first branch runners 9; the second main flow channel 8 is respectively communicated with the plurality of mold cavities 6 one by one through a plurality of second branch flow channels 10, specifically, in this embodiment, the number of the second branch flow channels 10 is two, that is, the second main flow channel 8 is respectively communicated with the two mold cavities 6 one by one through the two second branch flow channels 10;

the upper die core assembly comprises an adjusting cylinder 11, a fixed plate 12, an upper die core 13 and a plurality of die cores 14 which are arranged in one-to-one correspondence with the die cavities 6, the adjusting cylinder 11 is fixed at the position of the top end of the movable die plate 2 corresponding to the upper through hole, the output end of the adjusting cylinder 11 penetrates through the upper through hole and extends into the upper die core fixing groove 4, the fixed plate 12 is movably arranged in the upper die core fixing groove 4, the fixed plate 12 is fixedly connected with the output end of the adjusting cylinder 11, the upper die core 13 is fixed at the position in the upper die core fixing groove 4 corresponding to the lower part of the fixed plate 12, specifically, four connecting columns which are respectively arranged at four opposite angles of the top end of the upper die core 13 are fixedly arranged at the top end of the upper die core 13, the top ends of the connecting columns are fixedly connected with the movable die plate 2 through screws, and a plurality of sliding, in this embodiment, the number of the sliding holes is two, and the sliding holes are arranged corresponding to the mold cavities 6 on the lower mold core 5 one by one, when the mold is installed, the mold cores 14 are inserted into the corresponding sliding holes in a sliding manner, and the top ends of the mold cores 14 are fixed at the bottom end of the fixing plate 12; when the injection molding machine is used, after the movable template 2 and the fixed template 1 are matched, the bottom ends of the mold cores 14 are inserted into the corresponding mold cavities 6, at the moment, a primary molding cavity is formed between the bottom ends of the mold cores 14 and the mold cavities 6, at the moment, the material is fed into the mold cavities 6 through the first main runner 8 for injection molding, and after the primary feeding injection molding is completed, the material is cooled and molded (by adopting a circulating water cooling mode which is well known by a person skilled in the art and is conventionally used in the prior art); then drive fixed plate 12 and fixed plate 12 upper die benevolence 14 through adjusting cylinder 11 and upwards remove to form secondary feeding die cavity, rethread second sprue 9 is moulded plastics to the feeding in die cavity 6 this moment, accomplishes the secondary feeding pig tripe after, but the cooling shaping ejection of compact. Specifically, in this embodiment, the lower mold core 5 is further provided with two air exhaust grooves 15 corresponding to the mold cavities 6 one by one.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims (2)

1. The utility model provides a secondary feeding lens injection mold, includes the mould body, the mould body includes fixed die plate (1), movable mould board (2) and sets up the mold core assembly between fixed die plate (1) and movable mould board (2), its characterized in that: the die core assembly is characterized in that a lower die core fixing groove (3) is formed in the top end of the fixed die plate (1), an upper die core fixing groove (4) is formed in the bottom end of the movable die plate (2), an upper through hole communicated with the upper die core fixing groove (4) is further formed in the top end of the movable die plate (2), the die core assembly comprises a lower die core (5) arranged in the lower die core fixing groove (3) and an upper die core assembly arranged in the upper die core fixing groove (4), a plurality of die cavities (6) are formed in the top end of the lower die core (5), a first main runner (7) and a second main runner (8) are further arranged on the lower die core (5), the first main runner (7) is communicated with the plurality of die cavities (6) one by one through a plurality of first branch runners (9), the second main runner (8) is communicated with the plurality of die cavities (6) one by one through a plurality of second, the upper die core assembly comprises an adjusting cylinder (11), a fixing plate (12), an upper die core (13) and a plurality of die cores (14) which are arranged corresponding to the die cavities (6) one by one, the adjusting cylinder (11) is fixed at the position of the top end of the movable template (2) corresponding to the upper through hole, the output end of the adjusting cylinder 92 penetrates through the upper through hole and extends into the upper mold core fixing groove (4), the fixing plate (12) is movably arranged in the upper mold core fixing groove (4), and the fixed plate (12) is fixedly connected with the output end of the adjusting cylinder (11), the upper mold core (13) is fixed in the upper mold core fixing groove (4) at a position corresponding to the lower part of the fixing plate (12), the upper mold core (13) is provided with a plurality of sliding holes which are arranged corresponding to the mold cores (14) one by one, the mold cores (14) are inserted in the corresponding sliding holes in a sliding way, and the top end of the die core (14) is fixed at the bottom end of the fixing plate (12).

2. The double-feed lens injection mold of claim 1, wherein: the lower mold core (5) is also provided with a plurality of exhaust grooves (15) which are arranged in one-to-one correspondence with the mold cavities (6).

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