A lip gloss inner bottle injection mold

By setting through holes and vacuum channels in the injection mold of the inner bottle of lip gloss, and using a vacuum pump to vacuum and adsorb the inner bottle, the problem of low independent production efficiency of double-layer lip gloss bottles is solved, and efficient injection molding is achieved.

CN224675367UActive Publication Date: 2026-08-25SUZHOU HAIMING PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202521461908.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-08-25
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

The existing double-layer lip gloss bottles are produced separately for the inner and outer bottles, resulting in low production efficiency and complicated processes.

Method used

Using an injection mold for the inner bottle of lip gloss, through the setting of through holes and vacuum channels on the core, a vacuum pump is used to draw a vacuum so that the inner bottle is adsorbed onto the core, and then the upper and lower molds are closed to form the outer bottle, reducing the assembly process.

Benefits of technology

It improves the production efficiency of double-layer lip gloss bottles, simplifies the processing flow, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of lip gloss inner bottle injection mould, belong to mould field, it includes: upper die;Lower die, the lower die is set in the upper die below, the lower die and the upper die jointly constitute mould cavity;Core, at least one the core is provided on the lower die, at least one through-hole is provided on the core, the through-hole is communicated with the vacuum passage in the core, the vacuum passage is connected with trachea, and the trachea is connected with vacuum pump.The utility model can solve the problem of low processing efficiency caused by independent production of double-layer lip gloss inner bottle and outer bottle and assembling compared with prior art.
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Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to an injection mold for a lip gloss inner bottle. Background Technology

[0002] Lip gloss is a type of lip cosmetic, a liquid lipstick characterized by its moisturizing, glossy, and easy-to-apply properties. It has a viscous texture, resembles lip tint in appearance, and is considered an upgraded version of lip gloss, combining the benefits of lipstick and lip balm. It boasts excellent color payoff and staying power. Lip gloss bottles are containers used to hold the lip gloss, typically made of glass or plastic. Lip gloss bottles come in various designs, including round, square, and irregular shapes, and are available in multiple sizes to suit different consumer needs.

[0003] In existing double-walled lip gloss bottles, an outer bottle is fitted over an inner bottle, and both the inner and outer bottles need to be manufactured independently. After the inner bottle is placed inside the outer bottle, they are fixed together by connecting components. The numerous connecting components result in significant labor costs during the production of hollow double-walled bottles. Furthermore, the complex production process further extends the processing time for hollow double-walled bottles. Utility Model Content

[0004] The purpose of this utility model is to provide an injection mold for the inner bottle of a double-layer lip gloss, which solves the problem of low processing efficiency caused by the independent production of the inner and outer bottles of the double-layer lip gloss bottle during assembly.

[0005] To achieve the above objectives, this utility model provides an injection mold for a lip gloss inner bottle, comprising:

[0006] upper mold;

[0007] The lower mold is disposed below the upper mold, and the lower mold and the upper mold together form a mold cavity;

[0008] The lower mold has at least one core, and the core has at least one through hole. The through hole is connected to a vacuum channel inside the core, and the vacuum channel is connected to an air pipe, which is connected to a vacuum pump.

[0009] As a further description of the above technical solution:

[0010] The core has a cooling chamber inside, and the vacuum channel is located at the center of the cooling chamber.

[0011] As a further description of the above technical solution:

[0012] The cooling chamber is equipped with a water jacket, and the outer circumference of the water jacket is provided with two parallel spiral grooves. The tops of the two spiral grooves are connected, the bottom of one spiral groove is connected to the water inlet pipe, and the bottom of the other spiral groove is connected to the water outlet pipe.

[0013] As a further description of the above technical solution:

[0014] A solenoid valve is installed on the air pipe.

[0015] As a further description of the above technical solution:

[0016] The upper mold includes an upper mold base, an upper pad plate disposed on the top of the upper mold base, and an upper fixing plate disposed on the upper pad plate.

[0017] As a further description of the above technical solution:

[0018] The lower mold includes a lower mold base, a lower pad plate disposed at the bottom of the lower mold base, and a lower fixing plate disposed below the lower pad plate.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: by setting through holes and vacuum channels on the core, and connecting the vacuum channel to a vacuum pump through an air pipe, after the inner bottle is inserted into the core, the vacuum pump draws a vacuum, causing the inner bottle to be adsorbed onto the core. Then, the upper mold and lower mold are closed to injection mold the outer bottle onto the inner bottle, which can reduce assembly steps and improve product production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an injection mold for an inner bottle of lip gloss.

[0022] Figure 2 This is a schematic diagram of the core structure in an injection mold for an inner bottle of lip gloss.

[0023] Figure 3 This is a cross-sectional view of the core in an injection mold for an inner bottle of lip gloss.

[0024] Legend:

[0025] 1. Upper mold; 11. Upper mold base; 12. Upper backing plate; 13. Upper fixing plate; 2. Lower mold; 21. Lower mold base; 22. Lower backing plate; 23. Lower fixing plate; 3. Core; 4. Through hole; 5. Vacuum channel; 6. Cooling cavity; 7. Water jacket; 8. Spiral groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-3 This utility model provides an injection mold for a lip gloss inner bottle, comprising:

[0032] Upper mold 1;

[0033] Lower mold 2 is disposed below upper mold 1, and the lower mold 2 and upper mold 1 together form a mold cavity;

[0034] The lower mold 2 has at least one core 3, and the core 3 has at least one through hole 4. The through hole 4 is connected to the vacuum channel 5 inside the core 3. The vacuum channel 5 is connected to an air pipe, and the air pipe is connected to a vacuum pump.

[0035] The core 3 has a cooling chamber 6 inside, and the vacuum channel 5 is located at the center of the cooling chamber 6. A water jacket 7 is installed inside the cooling chamber 6, and the outer circumference of the water jacket 7 has two parallel spiral grooves 8. The tops of the two spiral grooves are connected, the bottom of one spiral groove is connected to the water inlet pipe, and the bottom of the other spiral groove is connected to the water outlet pipe. By supplying cooling water to the core, the inner bottle can be cooled, preventing heat deformation of the inner bottle during the molding of the outer bottle. The tops of the two spiral grooves are connected, the bottom of one spiral groove is connected to the water inlet pipe, and the bottom of the other spiral groove is connected to the water outlet pipe. That is, the cooling water flows from the water inlet pipe to one of the spiral grooves, flows along that spiral groove to the top, then flows along the other spiral groove to the bottom, and then flows out from the water outlet pipe. Its structure is simple and easy to manufacture.

[0036] A solenoid valve is installed on the air pipe for easy control.

[0037] The upper mold 1 includes an upper mold base 11, an upper pad 12 disposed on the top of the upper mold base 11, and an upper fixing plate 13 disposed on the upper pad 12.

[0038] The lower mold 2 includes a lower mold base 21, a lower pad 22 disposed at the bottom of the lower mold base 21, and a lower fixing plate 23 disposed below the lower pad 22.

[0039] Working principle: By setting through holes and vacuum channels on the core, the vacuum channels are connected to a vacuum pump through an air pipe. After the inner bottle is inserted into the core, the vacuum pump draws a vacuum, causing the inner bottle to adhere to the core. Then, the upper and lower molds are closed to injection mold the outer bottle onto the inner bottle, thus reducing assembly steps and improving product production efficiency.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lip gloss-in-bottle injection mold characterized by, The application relates to a die set, which comprises: an upper die; a lower die arranged below the upper die, the lower die and the upper die jointly forming a die cavity; a core arranged on the lower die, the core being provided with at least one through hole, the through hole being communicated with a vacuum passage in the core, the vacuum passage being connected with an air pipe, and the air pipe being connected with a vacuum pump.

2. A lip gloss-in-bottle injection mold according to claim 1, wherein, The core is internally provided with a cooling cavity, and the vacuum passage is located at the center of the cooling cavity.

3. A lip gloss-in-bottle injection mold according to claim 2, wherein, The cooling cavity is internally provided with a water jacket, the outer ring surface of the water jacket is provided with two parallel spiral grooves, the top of the two spiral grooves is communicated, the bottom of one of the spiral grooves is communicated with an inlet pipeline, and the bottom of the other spiral groove is communicated with an outlet pipeline.

4. The lip gloss-in-bottle injection mold of claim 1, wherein, The air pipe is provided with an electromagnetic valve.

5. The lip gloss-in-bottle injection mold of claim 1, wherein, The upper die comprises an upper die base, an upper pad arranged on the top of the upper die base, and an upper fixing plate arranged on the upper pad.

6. The lip gloss-in-bottle injection mold of claim 1, wherein, The lower die comprises a lower die base, a lower pad arranged on the bottom of the lower die base, and a lower fixing plate arranged below the lower pad.