Cosmetic plastic bottle injection molding device with cooling function

Abstract

The utility model discloses a cosmetic plastic bottle injection molding device with a cooling function, and relates to the technical field of plastic bottle injection molding equipment, the cosmetic plastic bottle injection molding device comprises a die sleeve, the side wall of the die sleeve is provided with an injection molding opening, the top of the die sleeve is provided with a sealing ring, and the die sleeve is internally provided with a heat dissipation sleeve; a water inlet is formed in the inner wall of the heat dissipation sleeve, a water outlet is formed in one end of the water inlet, and a heat dissipation net is installed on the inner wall of the heat dissipation sleeve. Through the arrangement of the heat dissipation sleeve, the water inlet, the water outlet, the heat dissipation net and the bottle blank, after the bottle blank is subjected to injection molding, heat can be transmitted to the interior of the heat dissipation sleeve, then through the cooperation of the water inlet and the water outlet, flowing water is injected into the heat dissipation sleeve, the heat of the heat dissipation sleeve is conducted out, and meanwhile the interior of the heat dissipation net is in a fine hole shape; the contact area with air is greatly increased, the heat dissipation effect can be effectively improved through cooperative use of the water inlet, the water outlet and the heat dissipation net, and heat dissipation is more uniform.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic bottle injection molding equipment, specifically a cosmetic plastic bottle injection molding device with a cooling function. Background Technology

[0002] In the cosmetics industry, cosmetic plastic bottles are commonly used packaging containers with huge demand. The molding of plastic bottles requires injection molding to form bottle preforms from molten plastic granules. However, existing injection molding equipment has poor cooling effect during use, which affects the quality and efficiency of the products. At the same time, after injection molding, the bottle preforms tend to stick to the equipment and are not easy to demold. To solve the above problems, a cosmetic plastic bottle injection molding device with cooling function is needed.

[0003] An existing cosmetic plastic bottle injection molding device suffers from poor cooling during operation, leading to problems such as bottle deformation, twisting, surface clouding, and poor gloss. This reduces the dimensional accuracy and appearance quality of the product, and the preform tends to stick and is difficult to demold. Therefore, there is an urgent need for a cosmetic plastic bottle injection molding device with a cooling function. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a cosmetic plastic bottle injection molding device with a cooling function, so as to solve the problems of poor cooling effect when using existing cosmetic plastic bottle injection molding devices, which leads to deformation, twisting, surface clouding, poor gloss, etc., reducing the dimensional accuracy and appearance quality of the product, and the problem that the preform is easy to stick and difficult to demold after molding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cosmetic plastic bottle injection molding device with cooling function, comprising a mold sleeve, an injection port on the side wall of the mold sleeve, a sealing ring installed on the top of the mold sleeve, a heat dissipation sleeve installed inside the mold sleeve, a water inlet on the inner wall of the heat dissipation sleeve, a water outlet at one end of the water inlet, a heat dissipation mesh installed on the inner wall of the heat dissipation sleeve, a bottle preform installed on the outer wall of the heat dissipation sleeve, an air injection pipe installed on the inner wall of the heat dissipation mesh, a positioning sleeve installed at the bottom of the air injection pipe, a limit spring installed on the inner wall of the positioning sleeve, and a push rod installed on the inner wall of the limit spring.

[0006] Preferably, the sealing ring is engaged with the top of the mold sleeve, and the heat dissipation sleeve is tightly fitted with the inner wall of the mold sleeve.

[0007] Preferably, the water inlet and outlet are arranged in a tubular loop inside the heat dissipation sleeve, and the heat dissipation mesh is arranged at equal intervals with the central axis of the heat dissipation sleeve as the center.

[0008] Preferably, the inner wall of the heat dissipation mesh is finely porous, and the heat dissipation mesh is welded to the inner wall of the heat dissipation sleeve.

[0009] Preferably, the air injection pipe is positioned at the center of the heat dissipation mesh, and the air injection pipe is perpendicular to the positioning sleeve.

[0010] Preferably, the top rod forms a telescopic structure with the positioning sleeve via a limiting spring, and the top rod is movably connected to the bottom of the heat dissipation sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the setting of a heat dissipation sleeve, water inlet, water outlet, heat dissipation mesh and bottle preform, allows heat to be transferred to the interior of the heat dissipation sleeve after the bottle preform is injection molded. Then, through the cooperation of the water inlet and water outlet, flowing water is injected into the interior to conduct the heat out of the heat dissipation sleeve. At the same time, the interior of the heat dissipation mesh is set with fine pores, which greatly increases the contact area with air. The combined use of the water inlet, water outlet and heat dissipation mesh can effectively improve the heat dissipation effect and make the heat dissipation more uniform.

[0013] 2. This utility model, through the setting of bottle preform, air injection pipe, positioning sleeve, limiting spring and ejector rod, allows compressed air to be injected through the air injection pipe after the bottle preform has cooled and formed. The compressed air pushes the ejector rod downward, thereby ejecting the cooled and formed bottle preform, achieving rapid demolding and making it more practical. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present utility model from the front view;

[0015] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0016] Figure 3 This is a structural schematic diagram showing the components surrounding the heat sink sleeve of this utility model disassembled;

[0017] Figure 4 This is a schematic diagram showing the internal cross-section of the positioning sleeve of this utility model.

[0018] In the diagram: 1. Mold sleeve; 2. Injection port; 3. Sealing ring; 4. Heat dissipation sleeve; 5. Water inlet; 6. Water outlet; 7. Heat dissipation mesh; 8. Bottle preform; 9. Air injection pipe; 10. Positioning sleeve; 11. Limiting spring; 12. Ejector rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Please see Figures 1-4 A cosmetic plastic bottle injection molding device with cooling function includes a mold sleeve 1, an injection port 2 on the side wall of the mold sleeve 1, a sealing ring 3 installed on the top of the mold sleeve 1, a heat dissipation sleeve 4 installed inside the mold sleeve 1, a water inlet 5 on the inner wall of the heat dissipation sleeve 4, a water outlet 6 at one end of the water inlet 5, a heat dissipation mesh 7 installed on the inner wall of the heat dissipation sleeve 4, and a bottle preform 8 installed on the outer wall of the heat dissipation sleeve 4. The sealing ring 3 is engaged with the top of the mold sleeve 1, and the heat dissipation sleeve 4 is tightly fitted to the inner wall of the mold sleeve 1. The water inlet 5 and the water outlet 6 are arranged in a tubular loop inside the heat dissipation sleeve 4, and the heat dissipation mesh 7 is oriented around the central axis of the heat dissipation sleeve 4. The heat dissipation mesh 7 is arranged at equal intervals around the center. The inner wall of the heat dissipation mesh 7 is finely porous and welded to the inner wall of the heat dissipation sleeve 4. Through the heat dissipation sleeve 4, water inlet 5, water outlet 6, heat dissipation mesh 7 and bottle preform 8, heat is transferred to the inside of the heat dissipation sleeve 4 after the bottle preform 8 is injection molded. Then, through the cooperation of water inlet 5 and water outlet 6, flowing water is injected into the inside to conduct the heat out of the heat dissipation sleeve 4. At the same time, the fine porous structure inside the heat dissipation mesh 7 greatly increases the contact area with air. The combined use of water inlet 5, water outlet 6 and heat dissipation mesh 7 can effectively improve the heat dissipation effect and make the heat dissipation more uniform.

[0022] Please see Figures 1-4 A cosmetic plastic bottle injection molding device with cooling function is disclosed. An air injection pipe 9 is installed on the inner wall of a heat dissipation mesh 7. A positioning sleeve 10 is installed at the bottom of the air injection pipe 9. A limit spring 11 is installed on the inner wall of the positioning sleeve 10. A push rod 12 is installed on the inner wall of the limit spring 11. The air injection pipe 9 is positioned at the center of the heat dissipation mesh 7 and is perpendicular to the positioning sleeve 10. The push rod 12 forms a telescopic structure with the positioning sleeve 10 via the limit spring 11, and is movably connected to the bottom of the heat dissipation sleeve 4. Through the preform 8, air injection pipe 9, positioning sleeve 10, limit spring 11, and push rod 12, after the preform 8 cools and solidifies, compressed air is injected through the air injection pipe 9. The compressed air pushes the push rod 12 downwards, thereby ejecting the cooled and solidified preform 8, achieving rapid demolding and enhancing practicality.

[0023] Working principle: In use, first move the device to the desired position, then seal and connect the mold sleeve 1 with the heat dissipation sleeve 4, and then inject hot-melt plastic raw material through the injection port 2 to form the preform 8. At this time, the heat of the preform 8 will be transferred to the inside of the heat dissipation sleeve 4. Then, through the cooperation of the water inlet 5 and the water outlet 6, flowing water is injected into the inside to conduct the heat of the heat dissipation sleeve 4. At the same time, the heat dissipation mesh 7 has a fine pore structure inside, which greatly increases the contact area with air. The combined use of the water inlet 5, the water outlet 6 and the heat dissipation mesh 7 can effectively improve the heat dissipation effect and make the heat dissipation more uniform. After the preform 8 cools and forms, the mold sleeve 1 is separated, and then compressed air is injected through the air injection pipe 9. The compressed air pushes the ejector rod 12 downward, thereby ejecting the cooled and formed preform 8 and achieving rapid demolding. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cosmetic plastic bottle injection molding device with cooling function, comprising a mold sleeve (1), characterized in that: The mold sleeve (1) has an injection port (2) on its side wall, a sealing ring (3) is installed on the top of the mold sleeve (1), a heat dissipation sleeve (4) is installed inside the mold sleeve (1), a water inlet (5) is opened on the inner wall of the heat dissipation sleeve (4), a water outlet (6) is opened at one end of the water inlet (5), a heat dissipation mesh (7) is installed on the inner wall of the heat dissipation sleeve (4), a preform (8) is installed on the outer wall of the heat dissipation sleeve (4), an air injection pipe (9) is installed on the inner wall of the heat dissipation mesh (7), a positioning sleeve (10) is installed at the bottom of the air injection pipe (9), a limit spring (11) is installed on the inner wall of the positioning sleeve (10), and a push rod (12) is installed on the inner wall of the limit spring (11).

2. The cosmetic plastic bottle injection molding device with cooling function according to claim 1, characterized in that: The sealing ring (3) is engaged with the top of the mold sleeve (1), and the heat dissipation sleeve (4) is tightly fitted with the inner wall of the mold sleeve (1).

3. The cosmetic plastic bottle injection molding device with cooling function according to claim 1, characterized in that: The inlet (5) and outlet (6) are arranged in a tubular loop inside the heat dissipation sleeve (4), and the heat dissipation mesh (7) is arranged at equal intervals with the central axis of the heat dissipation sleeve (4) as the center.

4. The cosmetic plastic bottle injection molding device with cooling function according to claim 1, characterized in that: The inner wall of the heat dissipation mesh (7) is finely porous, and the heat dissipation mesh (7) is welded to the inner wall of the heat dissipation sleeve (4).

5. The cosmetic plastic bottle injection molding device with cooling function according to claim 1, characterized in that: The air injection pipe (9) is positioned at the center of the heat dissipation mesh (7), and the air injection pipe (9) is perpendicular to the positioning sleeve (10).

6. The cosmetic plastic bottle injection molding device with cooling function according to claim 1, characterized in that: The top rod (12) forms a telescopic structure with the positioning sleeve (10) through the limiting spring (11), and the top rod (12) is movably connected to the bottom of the heat dissipation sleeve (4).

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