CN212097337U - One-mold multi-cavity lens mold with balanced molding - Google Patents

One-mold multi-cavity lens mold with balanced molding Download PDF

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Publication number
CN212097337U
CN212097337U CN202020129107.7U CN202020129107U CN212097337U CN 212097337 U CN212097337 U CN 212097337U CN 202020129107 U CN202020129107 U CN 202020129107U CN 212097337 U CN212097337 U CN 212097337U
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cavity
mold
lens
cavities
lower die
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CN202020129107.7U
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Chinese (zh)
Inventor
刘剑
雷强
廖水莲
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Dongguan Wande Optoelectronics Technology Co ltd
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Dongguan Wande Optoelectronics Technology Co ltd
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Abstract

The utility model discloses a one-mould multi-cavity lens mould with balanced molding, which comprises a base, a lower mould seat, a lower mould core, an upper mould seat, an upper mould core, an ejection mechanism and a cover plate, wherein the surface of the lower mould core is provided with a plurality of lower cavities and a plurality of lower mould cores which are detachably arranged, the lower mould cores are arranged below the lower cavities in a one-to-one correspondence manner, and the tops of the lower mould cores extend into the lower cavities; the surface of the upper die core is provided with a plurality of upper concave cavities, the upper concave cavities correspond to the lower concave cavities one by one, and the upper concave cavities and the lower concave cavities surround to form a molding cavity for molding the lens; one side of the lower concave cavity is provided with a glue inlet, the lower die core and the upper die core are both provided with a hot melt glue flow passage, one end of the hot melt glue flow passage is communicated with the glue inlet, and the diameter of the glue inlet is smaller than that of the hot melt glue flow passage; compared with the traditional mold structure, the problem of air lines generated after the lens is molded due to the fact that the glue feeding speed is low can be solved, so that the surface texture balance after the lens is molded can be guaranteed, and the product quality is improved.

Description

One-mold multi-cavity lens mold with balanced molding
Technical Field
The utility model belongs to the technical field of the mould technique and specifically relates to indicate a balanced many caves of a mould formula lens mould of shaping.
Background
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".
In the prior art, a mold for molding a lens generally employs a single mold with multiple cavities to simultaneously mold multiple lenses. However, the existing one-mold multi-cavity mold has too many cavities, which leads to slow glue feeding speed, so that air lines are easily generated after the lens is molded, surface textures of the molded lens are not uniform, and the quality of the product is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a one-mold multi-cavity lens mold with balanced molding, which can effectively solve the problem of low glue feeding speed of the mold for molding lens in the prior art, so that air lines are easily generated after the lens is molded.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lens mould with one mould and multiple cavities for balanced molding comprises a base, a lower die holder, a lower die core, an upper die holder, an upper die core, an ejection mechanism and a cover plate, wherein the lower die holder is arranged on the base, the lower die core is arranged on the lower die holder, the upper die holder can be movably arranged right above the lower die holder up and down, the upper die core is arranged on the upper die holder, the ejection mechanism is arranged between the base and the lower die holder, and the cover plate is arranged on the upper die holder; wherein
The surface of the lower die core is provided with a plurality of lower concave cavities and a plurality of lower die cores which are detachably arranged, the lower die cores are correspondingly arranged below the lower concave cavities one by one, and the tops of the lower die cores extend into the lower concave cavities;
the surface of the upper die core is provided with a plurality of upper concave cavities, the upper concave cavities correspond to the lower concave cavities one by one, and the upper concave cavities and the lower concave cavities surround to form a molding cavity for molding a lens;
one side of the lower concave cavity is provided with a glue inlet, the lower die core and the upper die core are both provided with a hot melt glue flow passage, one end of the hot melt glue flow passage is communicated with the glue inlet, and the diameter of the glue inlet is smaller than that of the hot melt glue flow passage;
the middle part of this apron is provided with the sprue gate, and this sprue gate is provided with the hot runner, and this hot runner intercommunication hot melt adhesive runner.
As a preferred embodiment: the hot melt adhesive flow passage comprises a main flow passage and a branch flow passage, and one end of the main flow passage is communicated with the hot runner; one end of the branch flow passage is communicated with the main flow passage, and the other end of the branch flow passage is communicated with the glue inlet.
As a preferred embodiment: the ejection mechanism is provided with a main runner ejector pin, a branch runner ejector pin and a cavity ejector pin;
the lower die base and the lower die core are provided with a first perforation, a second perforation and a third perforation, the first perforation is communicated with the main runner, the second perforation is communicated with the branch runners, and the third perforation is communicated with the lower concave cavity; wherein
The main runner ejector pin penetrates through the first through hole and extends into the main runner, the branch runner ejector pin penetrates through the second through hole and extends into the branch runner, and the cavity ejector pin penetrates through the third through hole and extends into the lower concave cavity;
as a preferred embodiment: and the cavity ejector pins are arranged at four corners of the lower concave cavity.
As a preferred embodiment: the bottom surface of the lower concave cavity is provided with a concave position for forming a mounting convex point of the lens
As a preferred embodiment: and the top of the lower mold core is provided with a sawtooth forming part for forming sawtooth concentric rings of the lens.
As a preferred embodiment: the lower die core is provided with an installation cavity communicated with the lower cavity, and the lower die core is detachably installed in the installation cavity.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme: one side of the lower concave cavities is provided with a glue inlet, and the diameter of the glue inlet is smaller than that of the hot melt adhesive flow passage; when the hot melt adhesive flows into the lower concave cavity through the hot melt adhesive flow passage, the speed of the hot melt adhesive entering the molding cavity can be instantly accelerated by utilizing the glue inlet with the small diameter, compared with the traditional mold structure, the problem that air lines are generated after the lens is molded due to the low glue inlet speed can be avoided, so that the surface texture balance after the lens is molded can be ensured, and the product quality is improved;
secondly, the lower die core is detachably mounted, so that the molding of lenses with different specifications is met, the universality of the die is improved, and the manufacturing cost of the die is reduced;
in addition, the structure of the skillfully arranged main runner, the branch runners, the main runner ejector pins, the branch runner ejector pins and the cavity ejector pins is reasonable in arrangement, so that the demolding balance of the lens can be realized, and the demolding efficiency and the demolding quality are improved.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the lower mold base and the lower mold core according to the preferred embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a first cross-sectional view of the preferred embodiment of the present invention;
fig. 6 is a partially enlarged view of fig. 5 at B.
The attached drawings indicate the following:
10. base 20, lower die holder
21. First and second through holes 22 and 22
23. Third through hole 30, lower mold core
31. Lower concave cavity 311 and glue inlet
312. Concave 32, lower die core
321. Sawtooth forming part 40 and upper die base
50. Upper die core 51, upper cavity
60. Ejection mechanism 61 and main runner ejector pin
62. Branch runner thimble 63 and cavity thimble
70. Cover plate 71 and pouring gate
72. Hot runner 80, hot melt adhesive runner
81. Main flow channel 82, branch flow channel.
Detailed Description
Referring to fig. 1 to 6, a structure of a lens mold according to a preferred embodiment of the present invention is shown, which is a one-mold multi-cavity lens mold with uniform molding, and includes a base 10, a lower mold base 20, a lower mold core 30, an upper mold base 40, an upper mold core 50, an ejection mechanism 60, and a cover plate 70.
The lower die holder 20 is installed on the base 10, the lower die core 30 is installed on the lower die holder 20, the upper die holder 40 can be installed right above the lower die holder 20 in a vertically movable manner, the upper die core 50 is installed on the upper die holder 40, the ejection mechanism 60 is installed between the base 10 and the lower die holder 20, and the cover plate 70 is installed on the upper die holder 40. in the embodiment of the present application, the surface of the lower die core 30 is provided with a plurality of lower cavities 31 and a plurality of lower die cores 32 which are detachably installed, the lower die cores 32 are installed below the lower cavities 31 in a one-to-one correspondence manner, and the tops of the lower die cores 32 extend into the lower cavities; the surface of the upper mold core 50 is provided with a plurality of upper cavities 51, the upper cavities 51 correspond to the lower cavities 31 one by one, the upper cavities 51 and the lower cavities 31 enclose a molding cavity for molding a lens, and one side of the lower cavity 31 is provided with a glue inlet 311.
Specifically, a glue inlet is arranged on one side of each of the lower concave cavities, and the diameter of the glue inlet is smaller than that of the hot melt adhesive flow passage; when the hot melt adhesive flowed into the lower cavity through the hot melt adhesive runner, the speed that the hot melt adhesive got into the molding cavity was instantaneously accelerated to the glue inlet that utilizes this diameter to be little, thereby compared in traditional mould structure, can avoid leading to the problem that the air mark produced after the lens shaping because of advancing gluey speed slowly to can guarantee that the surface texture after the lens shaping is balanced, improved the quality of product.
The lower mold core 20 and the upper mold core 50 are both provided with a hot melt adhesive flow passage 80, one end of the hot melt adhesive flow passage 80 is communicated with a glue inlet 311, and the diameter of the glue inlet 311 is smaller than that of the hot melt adhesive flow passage 80; the central portion of the cover plate 70 is provided with a gate 71, the gate 71 is provided with a hot runner 72, and the hot runner 72 is communicated with a hot melt adhesive flow channel 80. In the present embodiment, the hot melt adhesive flow channel 80 comprises a main flow channel 81 and a branch flow channel 82, wherein one end of the main flow channel 81 is communicated with the hot runner 72; one end of the branch flow passage 82 communicates with the main flow passage 81, and the other end of the branch flow passage 82 communicates with the glue inlet 311.
The ejection mechanism 60 has a main runner ejector pin 61, a branch runner ejector pin 62, and a cavity ejector pin 63; wherein, the lower mold base 20 and the lower mold core 30 are provided with a first perforation 21, a second perforation 22 and a third perforation 23, the first perforation 21 is communicated with the main flow passage 81, the second perforation 22 is communicated with the branch flow passage 82, and the third perforation 23 is communicated with the lower concave cavity 31; the main runner needle 61 extends into the main runner 81 through the first through hole 21, the branch runner needle 62 extends into the branch runner 82 through the second through hole 22, and the cavity needle 63 extends into the lower cavity 31 through the third through hole 23. Preferably, the cavity ejector pins 63 are arranged at four corners of the lower cavity 31, so as to provide a uniform ejection force when ejecting the lens.
The bottom surface of the concave cavity 31 is provided with concave positions 312 for molding mounting bumps of the lens, and the top of the lower core 32 is provided with sawtooth molding parts 321 for molding sawtooth concentric rings of the lens. The lower mold core 30 is provided with a mounting cavity 33 communicated with the lower cavity 31, and the lower mold core 32 is detachably mounted in the mounting cavity 33.
The utility model discloses a design focus lies in: one side of the lower concave cavities is provided with a glue inlet, and the diameter of the glue inlet is smaller than that of the hot melt adhesive flow passage; when the hot melt adhesive flows into the lower concave cavity through the hot melt adhesive flow passage, the speed of the hot melt adhesive entering the molding cavity can be instantly accelerated by utilizing the glue inlet with the small diameter, compared with the traditional mold structure, the problem that air lines are generated after the lens is molded due to the low glue inlet speed can be avoided, so that the surface texture balance after the lens is molded can be ensured, and the product quality is improved;
secondly, the lower die core is detachably mounted, so that the molding of lenses with different specifications is met, the universality of the die is improved, and the manufacturing cost of the die is reduced;
in addition, the structure of the skillfully arranged main runner, the branch runners, the main runner ejector pins, the branch runner ejector pins and the cavity ejector pins is reasonable in arrangement, so that the demolding balance of the lens can be realized, and the demolding efficiency and the demolding quality are improved.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (7)

1. The utility model provides a balanced one mould many caves formula lens mould of shaping which characterized in that: the die comprises a base (10), a lower die holder (20), a lower die core (30), an upper die holder (40), an upper die core (50), an ejection mechanism (60) and a cover plate (70), wherein the lower die holder (20) is arranged on the base (10), the lower die core (30) is arranged on the lower die holder (20), the upper die holder (40) can be movably arranged right above the lower die holder (20) up and down, the upper die core (50) is arranged on the upper die holder (40), the ejection mechanism (60) is arranged between the base (10) and the lower die holder (20), and the cover plate (70) is arranged on the upper die holder (40); wherein
The surface of the lower die core (30) is provided with a plurality of lower concave cavities (31) and a plurality of lower die cores (32) which are detachably arranged, the lower die cores (32) are correspondingly arranged below the lower concave cavities (31) one by one, and the tops of the lower die cores (32) extend into the lower concave cavities (31);
the surface of the upper die core (50) is provided with a plurality of upper cavities (51), the upper cavities (51) correspond to the lower cavities (31) one by one, and the upper cavities (51) and the lower cavities (31) enclose to form a molding cavity for molding the lens;
one side of the lower concave cavity (31) is provided with a glue inlet (311), the lower die core (30) and the upper die core (50) are both provided with a hot melt glue flow passage (80), one end of the hot melt glue flow passage (80) is communicated with the glue inlet (311), and the diameter of the glue inlet (311) is smaller than that of the hot melt glue flow passage (80);
the middle part of the cover plate (70) is provided with a pouring port (71), the pouring port (71) is provided with a hot runner (72), and the hot runner (72) is communicated with a hot melt adhesive flow passage (80).
2. The mold for molding a balanced one-mold multi-cavity lens of claim 1, wherein: the hot melt adhesive flow channel (80) comprises a main flow channel (81) and a branch flow channel (82), and one end of the main flow channel (81) is communicated with the hot runner (72); one end of the branch flow passage (82) is communicated with the main flow passage (81), and the other end of the branch flow passage (82) is communicated with the glue inlet (311).
3. The mold balanced one-mold multi-cavity lens mold of claim 2, wherein: the ejection mechanism (60) is provided with a main runner ejector pin (61), a branch runner ejector pin (62) and a cavity ejector pin (63);
the lower die holder (20) and the lower die core (30) are provided with a first perforation (21), a second perforation (22) and a third perforation (23), the first perforation (21) is communicated with the main runner (81), the second perforation (22) is communicated with the branch runner (82), and the third perforation (23) is communicated with the lower concave cavity (31); wherein
The main runner thimble (61) passes through the first through hole (21) and extends into the main runner (81), the branch runner thimble (62) passes through the second through hole (22) and extends into the branch runner (82), and the cavity thimble (63) passes through the third through hole (23) and extends into the lower cavity (31).
4. The mold balanced one-mold multi-cavity lens mold of claim 3, wherein: the die cavity ejector pins (63) are arranged at four corners of the lower concave cavity (31).
5. The mold for molding a balanced one-mold multi-cavity lens of claim 1, wherein: the bottom surface of the lower concave cavity (31) is provided with a concave position (312) for forming a mounting bump of the lens.
6. The mold for molding a balanced one-mold multi-cavity lens of claim 1, wherein: and a sawtooth forming part (321) for forming sawtooth concentric rings of the lens is arranged at the top of the lower mold core (32).
7. The mold for molding a balanced one-mold multi-cavity lens of claim 1, wherein: the lower die core (30) is provided with a mounting cavity (33) communicated with the lower cavity (31), and the lower die core (32) is detachably mounted in the mounting cavity (33).
CN202020129107.7U 2020-01-20 2020-01-20 One-mold multi-cavity lens mold with balanced molding Active CN212097337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020129107.7U CN212097337U (en) 2020-01-20 2020-01-20 One-mold multi-cavity lens mold with balanced molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020129107.7U CN212097337U (en) 2020-01-20 2020-01-20 One-mold multi-cavity lens mold with balanced molding

Publications (1)

Publication Number Publication Date
CN212097337U true CN212097337U (en) 2020-12-08

Family

ID=73626979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020129107.7U Active CN212097337U (en) 2020-01-20 2020-01-20 One-mold multi-cavity lens mold with balanced molding

Country Status (1)

Country Link
CN (1) CN212097337U (en)

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