Multi-mold-position synchronous molding injection mold for resin lens

Abstract

The utility model relates to the field of injection molds, in particular to a resin lens multi-mold-position synchronous molding injection mold, which comprises an upper mold, a lower mold and a middle mold, the upper mold is provided with a first cavity, the top surface and the bottom surface of the middle mold are respectively provided with a second cavity and a third cavity, and the lower mold is provided with a fourth cavity; the first cavity and the second cavity are closed to form an upper cavity, and the third cavity and the fourth cavity are closed to form a lower cavity; an injection molding opening is formed in the side part of the middle mold and is communicated with the upper cavity and the lower cavity. According to the mold, the number of the cavities is multiplied by arranging the middle mold, meanwhile, after molding, the middle mold can be independently separated out for the subsequent demolding procedure, the upper mold and the lower mold continue to be put into production, and therefore the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a multi-mode synchronous molding injection mold for resin lenses. Background Art

[0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is also called injection molding, which is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding processing fields.

[0003] Existing injection molds for producing resin lenses have many disadvantages, including low production efficiency and the technical problem that only a small number of resin lenses can be produced in a single injection. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a multi-mode synchronous molding injection mold for resin lenses, which can solve the technical problem that the existing injection mold can only produce a small amount of resin lenses in a single injection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a multi-mode synchronous molding injection mold for a resin lens, comprising an upper mold, a lower mold, and a middle mold, wherein the upper mold is provided with a first cavity, the top surface and the bottom surface of the middle mold are respectively provided with a second cavity and a third cavity, and the lower mold is provided with a fourth cavity;

[0007] The first cavity and the second cavity are closed to form an upper cavity, and the third cavity and the fourth cavity are closed to form a lower cavity; an injection port is provided on the side of the middle mold, and the injection port is connected to the upper cavity and the lower cavity.

[0008] Optionally, the middle mold is further provided with a demoulding component, and the demoulding component is connected to the upper cavity and the lower cavity.

[0009] Optionally, a hole is provided in the middle mold, which coincides with the symmetry line of the upper cavity and the lower cavity; the demolding assembly includes a rod and an elastic component, the rod and the elastic component are arranged in the hole, one end of the rod is connected to the bottom of the hole through the elastic component, and the other end of the rod is arranged outside the hole; a protrusion with a slope is provided on the side of the rod; the edges of the upper cavity and the lower cavity are provided with openings corresponding to the protrusions, and the slope is used to lift the injection molded part in the upper cavity or the lower cavity when the rod moves along the hole.

[0010] Optionally, the edges of the upper mold and the lower mold are provided with positioning holes, positioning posts are provided in the positioning holes, and the edge of the middle mold is provided with a U-shaped opening that coincides with the positioning hole, and the U-shaped opening is sleeved on the positioning post.

[0011] Optionally, the elastic component is a spring.

[0012] Optionally, there are multiple upper cavities and multiple lower cavities.

[0013] The beneficial effects of the utility model are as follows: the utility model is a multi-mode synchronous molding injection mold for a resin lens, comprising an upper mold and a lower mold, and also a middle mold, the upper mold is provided with a first cavity, the top surface and the bottom surface of the middle mold are respectively provided with a second cavity and a third cavity, and the lower mold is provided with a fourth cavity; the first cavity and the second cavity are closed to form an upper cavity, and the third cavity and the fourth cavity are closed to form a lower cavity; the side of the middle mold is provided with an injection port, and the injection port is connected with the upper cavity and the lower cavity. The present application increases the number of cavities by multiples by setting the middle mold, and at the same time, after molding, the middle mold can be separated separately for subsequent demolding process, and the upper mold and the lower mold continue to be put into production, thereby effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall side view structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the middle mold structure of the utility model.

[0016] In the figure: 1-upper mold, 2-lower mold, 3-middle mold, 4-rod, 5-guide column, 6-spring, 11-first cavity, 21-fourth cavity, 31-second cavity, 32-third cavity, 33-injection port, 34-U-shaped opening, 311-opening, 41-protrusion. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] like Figure 1-Figure 2 As shown: A multi-mode synchronous molding injection mold for a resin lens in this embodiment includes an upper mold 1 and a lower mold 2, and also includes a middle mold 3. The upper mold 1 is provided with a first cavity 11, and the top and bottom surfaces of the middle mold 3 are respectively provided with a second cavity 31 and a third cavity 32, and the lower mold 2 is provided with a fourth cavity 21; the number of the first cavity 11, the second cavity 31, the third cavity 32 and the fourth cavity 21 are equal, and they are all multiple.

[0020] The first cavity 11 and the second cavity 31 are closed to form an upper cavity, and the third cavity 32 and the fourth cavity 21 are closed to form a lower cavity; an injection port 33 is provided on the side of the middle mold 3, and the injection port 33 is connected to the upper cavity and the lower cavity.

[0021] In the present application, a middle die 3 is arranged between the upper die 1 and the lower die 2. The advantages of such arrangement are mainly two points:

[0022] The number of cavities is increased exponentially, the top surface of the middle mold 3 is combined with the first cavity 11 of the upper mold 1 through the second cavity 31 to form an upper cavity, and the bottom surface of the middle mold 3 is combined with the fourth cavity 21 of the upper mold 1 through the third cavity 32 to form a lower cavity, and the upper cavity and the lower cavity are symmetrically distributed. Thus, the number of cavities is increased, and more parts can be produced each time by injection molding.

[0023] The depth of the second cavity 31 and the third cavity 32 is greater than the depth of the first cavity 11 and the fourth cavity 21. When the mold is separated, the parts follow the middle mold 3, and the middle mold 3 can directly bring the parts into the cooling and demolding process. At this time, the upper mold 1 and the lower mold 2 are idle and can cooperate with other middle molds 3 to continue production, thereby improving the operation efficiency of the equipment and improving production efficiency.

[0024] In one embodiment of the present application, the middle mold 3 is provided with a hole that coincides with the symmetry line of the upper cavity and the lower cavity; the middle mold 3 is also provided with a demolding assembly, and the demolding assembly is connected to the upper cavity and the lower cavity; the demolding assembly includes a rod 4 and an elastic component, and the rod 4 and the elastic component are arranged in the hole, one end of the rod 4 is connected to the bottom of the hole through the elastic component, and the other end of the rod 4 is arranged outside the hole; a protrusion 41 with a bevel is provided on the side of the rod 4; the edges of the upper cavity and the lower cavity are provided with openings 311 corresponding to the protrusion 41, and the bevel is used to lift the injection molded part in the upper cavity or the lower cavity when the rod 4 moves along the hole.

[0025] Specifically, the elastic component can be a spring 6, which presses the other end of the rod 4 so that the inclined surface of the protrusion 41 presses the opening 311 on the edge of the upper cavity or the lower cavity from light to heavy, and lifts up the part solidified at the opening 311 to lift up the entire injection molded part, completing the demolding; then the spring 6 resets the rod 4 to facilitate the demolding of the next production.

[0026] In one embodiment of the present application, the edges of the upper mold 1 and the lower mold 2 are provided with positioning holes, and positioning columns 5 are provided in the positioning holes. The edge of the middle mold 3 is provided with a U-shaped opening 34 that coincides with the positioning holes, and the U-shaped opening 34 is sleeved on the positioning columns 5 to facilitate the disassembly and installation of the middle mold 3.

[0027] The utility model discloses a multi-mode synchronous molding injection mold for a resin lens, comprising an upper mold and a lower mold, and also a middle mold. The upper mold is provided with a first cavity, the top surface and the bottom surface of the middle mold are provided with a second cavity and a third cavity respectively, and the lower mold is provided with a fourth cavity; the first cavity and the second cavity are closed to form an upper cavity, and the third cavity and the fourth cavity are closed to form a lower cavity; the side of the middle mold is provided with an injection port, and the injection port is connected with the upper cavity and the lower cavity. The present application increases the number of cavities by multiples by providing a middle mold, and at the same time, after molding, the middle mold can be separated separately for subsequent demoulding process, and the upper mold and the lower mold continue to be put into production, thereby effectively improving production efficiency.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-mode synchronous molding injection mold for a resin lens, comprising an upper mold and a lower mold, characterized in that: It also includes a middle mold, the upper mold is provided with a first cavity, the top surface and the bottom surface of the middle mold are respectively provided with a second cavity and a third cavity, and the lower mold is provided with a fourth cavity; The first cavity and the second cavity are closed to form an upper cavity, and the third cavity and the fourth cavity are closed to form a lower cavity; an injection port is provided on the side of the middle mold, and the injection port is connected to the upper cavity and the lower cavity.

2. The multi-mode synchronous molding injection mold for resin lenses according to claim 1, characterized in that: The middle mold is also provided with a demoulding component, and the demoulding component is connected with the upper cavity and the lower cavity.

3. The multi-mode synchronous molding injection mold for resin lenses according to claim 2, characterized in that: A hole is provided in the middle mold, which coincides with the symmetry line of the upper cavity and the lower cavity; the demoulding assembly includes a rod and an elastic component, the rod and the elastic component are arranged in the hole, one end of the rod is connected to the bottom of the hole through the elastic component, and the other end of the rod is arranged outside the hole; a protrusion with a slope is provided on the side of the rod; openings corresponding to the protrusions are provided on the edges of the upper cavity and the lower cavity, and the slope is used to lift the injection molded part in the upper cavity or the lower cavity when the rod moves along the hole.

4. The multi-mode synchronous molding injection mold for resin lenses according to claim 1, characterized in that: The edges of the upper mold and the lower mold are both provided with positioning holes, and positioning columns are arranged in the positioning holes. The edge of the middle mold is provided with a U-shaped opening that coincides with the positioning hole, and the U-shaped opening is sleeved on the positioning column.

5. The multi-mode synchronous molding injection mold for resin lenses according to claim 3, characterized in that: The elastic component is a spring.

6. The multi-mode synchronous molding injection mold for resin lenses according to claim 1, characterized in that: The number of the upper cavity and the number of the lower cavity are multiple.

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