Mold structure of cosmetic outer cover

Abstract

The utility model discloses a mold structure of a cosmetic outer cover. The mold structure comprises an upper mold punch, a lower mold cavity and an upper mold push plate sleeve, the lower die cavity is matched with the upper die punch, and a cavity is formed between the lower die cavity and the upper die punch; the upper die push plate sleeve is mounted on the outer ring of the cavity, the upper die push plate sleeve is of an integrated structure, and the inner wall of the upper die push plate sleeve forms the outer wall structure of the cavity. The upper die punch and the lower die cavity are opened, then the bottle cap body is pushed out through the integrated upper die push plate sleeve, the outer wall of the produced bottle cap body is not provided with a parting line structure, the whole die opening and closing action is simple, maintenance and installation are convenient, the appearance of a product is uniform, the quality is good, and the strength of the formed cavity is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cosmetic outer cover production, in particular to a mold structure of a cosmetic outer cover. Background Art

[0002] The sealing performance of the cosmetic cover is excellent, which can effectively prevent oxygen and other foreign substances in the cosmetics from entering the container, thereby helping to extend the shelf life of the cosmetics and protect the cosmetics in the bottle. Figure 1 As shown, the existing bottle cap body 1 has an open end and a sealed end. Figure 3 and Figure 4 The conventional mold shown in the figure, when in production, its demoulding action is: the upper mold punch 2' and the lower mold cavity 3' are opened, the sliders 5' located on both sides of the bottle cap body 1 are opened to both sides, and then the push plate 4' moves down to push the bottle cap body 1 out. The products produced by this type of mold have the following disadvantages: the action is complicated; the row of this type of parting mold is large; because the wall thickness of the product is thick, a large injection pressure and holding pressure must be used, such as Figure 2 As shown, the parting line 6' of the product may be thick, resulting in poor appearance and low production efficiency. Utility Model Content

[0003] Based on this, it is necessary to provide a mold structure for a cosmetic outer cover to address the above-mentioned technical problems. By opening the upper mold punch and the lower mold cavity, and then pushing out the bottle cap body through the integrated upper mold push plate sleeve, the outer wall of the bottle cap body at the production site has no parting line structure, the overall opening and closing mold action is simple, and maintenance and installation are convenient. The product appearance is uniform and of good quality, and the formed cavity strength is good.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A mold structure for a cosmetic outer cover, comprising:

[0006] Upper die punch;

[0007] A lower mold cavity is adapted to the upper mold punch, and a mold cavity is formed between the lower mold cavity and the upper mold punch;

[0008] The upper die push plate sleeve is installed on the outer ring of the cavity. The upper die push plate sleeve is an integrated structure, and the inner wall of the upper die push plate sleeve forms the outer wall structure of the cavity.

[0009] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the upper end of the upper mold push plate sleeve is provided with a blowing hole extending to the middle cavity of the upper mold push plate sleeve.

[0010] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the lower end surface of the cavity matches the bottom surface of the inner cavity of the upper mold push plate sleeve, and the upper end surface of the cavity is lower than the upper end surface of the upper mold push plate sleeve.

[0011] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the blowing hole is located above the upper end surface of the cavity.

[0012] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the upper end of the inner cavity of the upper mold push plate sleeve is in contact with the outer wall of the upper mold punch.

[0013] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, a needle valve hot runner is installed in the middle of the upper die punch.

[0014] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the outer ring of the upper die punch is provided with an undercut rib at the opening of the cavity, and the undercut rib is a ring structure.

[0015] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, a driving mechanism is provided on one side of the upper die punch and the upper die push plate sleeve to control the separation of the upper die punch and the upper die push plate sleeve.

[0016] As a preferred embodiment of the mold structure of a cosmetic outer cover provided by the utility model, the driving mechanism includes a cylinder and a top block installed at the output end of the cylinder, the cylinder is installed with the upper die punch, and the top block is installed with the upper die push plate sleeve.

[0017] As a preferred embodiment of the mold structure of the cosmetic outer cover provided by the utility model, the outer ring of the upper mold push plate sleeve is installed with a front mold push plate connected to the top block.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a mold structure for a cosmetic outer cover, which opens an upper mold punch and a lower mold cavity, and then pushes out a bottle cap body through an integrated upper mold push plate sleeve. The outer wall of the bottle cap body at the production site has no parting line structure, the overall mold opening and closing action is simple, and maintenance and installation are convenient. The product appearance is uniform and of good quality, and the formed cavity strength is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the bottle cap body structure;

[0022] Figure 2 It is a schematic diagram of the parting line structure on the bottle cap body in the prior art;

[0023] Figure 3 It is a schematic diagram of the mold structure in the prior art;

[0024] Figure 4 It is a structural schematic diagram of the prior art when the slider and the bottle cap body are separated;

[0025] Figure 5 A schematic diagram of the mold structure provided by the utility model;

[0026] Figure 6 The utility model provides Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 A schematic diagram of the mold installation structure provided by the utility model;

[0028] Figure 8 This is a schematic diagram of the driving mechanism structure provided by the utility model.

[0029] The markings in the figure are as follows:

[0030] 1. Bottle cap body; 2', upper die punch; 3', lower mold cavity; 4', push plate; 5', slider; 6', parting line; 2. Upper die punch; 3. Lower mold cavity; 4. Needle valve hot runner; 5. Upper die push plate sleeve; 6. Blowing hole; 7. Undercut rib; 8. Cylinder; 9. Ejector block; 10. Front die push plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background technology, the existing mold movements are complicated; the use of this type of parting mold has a large row; due to the thick wall thickness of the product, a larger injection pressure and holding pressure must be used, which will cause the product to have a thick parting line, poor appearance, and low production efficiency.

[0033] Specifically, please refer to Figures 5 to 8 A mold structure for a cosmetic outer cover, comprising: an upper die punch 2, a lower mold cavity 3 and an upper die push plate sleeve 5; the lower mold cavity 3 is adapted to the upper die punch 2, and a cavity is formed between the lower mold cavity 3 and the upper die punch 2; the upper die push plate sleeve 5 is installed on the outer ring of the cavity, the upper die push plate sleeve 5 is an integrated structure, and the inner wall of the upper die push plate sleeve 5 forms the outer wall structure of the cavity.

[0034] The utility model provides a mold structure for a cosmetic outer cover. By opening an upper mold punch 2 and a lower mold cavity 3, a bottle cap body 1 is pushed out through an integrated upper mold push plate sleeve 5. The outer wall of the bottle cap body 1 at the production site has no parting line structure, the overall mold opening and closing action is simple, and maintenance and installation are convenient. The product appearance is uniform and of good quality, and the formed cavity strength is good.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Example 1

[0039] Please refer to Figure 5 A mold structure for a cosmetic outer cover, comprising: a lower mold cavity 3 is adapted to an upper mold punch 2, a mold cavity is formed between the lower mold cavity 3 and the upper mold punch 2, and the mold cavity is used to produce a bottle cap body 1; an upper mold push plate sleeve 5 is installed on the outer ring of the mold cavity, the upper mold push plate sleeve 5 is an integrated structure, the inner wall of the upper mold push plate sleeve 5 forms the outer wall structure of the mold cavity, and an upper end of the upper mold push plate sleeve 5 is provided with a blowing hole 6 extending to the middle chamber of the upper mold push plate sleeve 5. After the mold opening operation is performed, the upper mold punch 2 is separated from the mold cavity, and gas is blown into the blowing hole 6 at this time, so that the bottle cap body 1 located in the mold cavity is blown out, and the bottle cap body 1 is taken out by using a mechanical suction cup.

[0040] In addition, if Figure 5As shown, the lower end surface of the cavity matches the bottom surface of the inner cavity of the upper mold push plate sleeve 5, the upper end surface of the cavity is lower than the upper end surface of the upper mold push plate sleeve 5, the cavity is installed at the bottom of the upper mold push plate sleeve 5, and is supported by the top of the lower mold cavity 3, so that the bottle cap body 1 can be taken out after the upper mold punch 2 and the lower mold cavity 3 are opened.

[0041] In addition, the blowing hole 6 is located above the upper end surface of the cavity. Blowing gas through the blowing hole 6 is convenient for blowing out the bottle cap body 1 from top to bottom. The gas enters the top opening of the bottle cap body 1, which is convenient for discharging the bottle cap body 1. The upper end of the inner cavity of the upper die push plate sleeve 5 is in contact with the outer wall of the upper die punch 2, which is convenient for stably inserting the upper die punch 2 into the upper die push plate sleeve 5 and cooperating with the cavity located in the middle of the upper die push plate sleeve 5.

[0042] In addition, a needle valve hot runner 4 is installed in the middle of the upper die punch 2, and the molten raw material is injected into the cavity through the needle valve hot runner 4 to prepare the bottle cap body 1.

[0043] It is worth mentioning that Figure 6 As shown, the outer ring of the upper die punch 2 is provided with an undercut rib 7 at the opening of the cavity. The undercut rib 7 is a ring structure. The function of the undercut rib 7 is to utilize the contraction of the product when ejecting the product, and to hang the upper die punch 2 with the buckle position of the undercut rib 7 to prevent the product from sticking to the die, and at the same time, to allow a gap between the bottle cap body 1 and the upper die punch 2 to facilitate air blowing to assist the bottle cap body 1 in ejecting the die.

[0044] Example 2

[0045] The mold structure of a cosmetic outer cover provided in Example 1 is further optimized. Specifically, Figure 7 and Figure 8 As shown, a driving mechanism is provided on one side of the upper die punch 2 and the upper die push plate sleeve 5 for controlling the separation of the upper die punch 2 and the upper die push plate sleeve 5. The driving mechanism includes a cylinder 8 and a top block 9 installed at the output end of the cylinder 8. The cylinder 8 is installed with the upper die punch 2, and the top block 9 is installed with the upper die push plate sleeve 5. By externally hanging the driving mechanism on the side, the volume of the mold structure can be reduced, and the cylinder 8 is used to drive the top block 9 to move, so as to facilitate the opening and closing operations of the mold.

[0046] like Figure 7 As shown, the outer ring of the upper mold push plate sleeve 5 is installed with a front mold push plate 10 connected to the top block 9, which facilitates the installation and connection of the top block 9 and the upper mold push plate sleeve 5.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A mold structure for a cosmetic outer cover, characterized in that: It includes: An upper die punch (2); a lower mold cavity (3) adapted to the upper die punch (2), a mold cavity being formed between the lower mold cavity (3) and the upper die punch (2); an upper die push plate sleeve (5) mounted on the outer ring of the mold cavity, the upper die push plate sleeve (5) being an integrated structure, and the inner wall of the upper die push plate sleeve (5) forming the outer wall structure of the mold cavity.

2. A mold structure for a cosmetic outer cover according to claim 1, characterized in that: The upper end of the upper die push plate sleeve (5) is provided with a blowing hole (6) extending to the middle chamber of the upper die push plate sleeve (5).

3. A mold structure for a cosmetic outer cover according to claim 2, characterized in that: The lower end surface of the mold cavity matches the inner cavity bottom surface of the upper mold push plate sleeve (5), and the upper end surface of the mold cavity is lower than the upper end surface of the upper mold push plate sleeve (5).

4. A mold structure for a cosmetic outer cover according to claim 3, characterized in that: The blowing hole (6) is located above the upper end surface of the cavity.

5. The mold structure of a cosmetic outer cover according to claim 4, characterized in that: The upper end of the inner cavity of the upper die push plate sleeve (5) fits the outer wall of the upper die punch (2).

6. A mold structure for a cosmetic outer cover according to claim 5, characterized in that: A needle valve type hot runner (4) is installed in the middle of the upper die punch (2).

7. The mold structure of a cosmetic outer cover according to claim 6, characterized in that: An outer ring of the upper die punch (2) is provided with an undercut rib (7) at the opening of the die cavity, and the undercut rib (7) is an annular structure.

8. The mold structure of a cosmetic outer cover according to claim 1, characterized in that: A driving mechanism is provided on one side of the upper die punch (2) and the upper die push plate sleeve (5) for controlling the separation of the upper die punch (2) and the upper die push plate sleeve (5).

9. The mold structure of a cosmetic outer cover according to claim 8, characterized in that: The driving mechanism comprises an oil cylinder (8) and a top block (9) mounted on the output end of the oil cylinder (8); the oil cylinder (8) is mounted on the upper die punch (2); and the top block (9) is mounted on the upper die push plate sleeve (5).

10. A mold structure for a cosmetic outer cover according to claim 9, characterized in that: The outer ring of the upper die push plate sleeve (5) is provided with a front die push plate (10) connected to the top block (9).

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