Plastic cup mold replacement equipment

By designing a plastic cup mold changing device, and utilizing locking pin connections and cooling liquid pipes for temperature reduction, the problem of complex traditional mold changing was solved, production efficiency and mold precision were improved, and simplified mold changing and efficient production were achieved.

CN224130327UActive Publication Date: 2026-04-17DONGGUAN ZHANENG MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN ZHANENG MOULD CO LTD
Filing Date
2025-04-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional plastic cup mold replacement is complex, time-consuming, and labor-intensive, affecting production efficiency and mold precision, and is difficult to automate and improve efficiency.

Method used

A plastic cup mold changing device was designed, including mold frame one and mold frame two, which are connected by locking pins and combined with a cooling liquid pipe for cooling and temperature reduction. The mold structure is optimized to facilitate the disassembly and removal of plastic bottles.

Benefits of technology

It simplifies and accelerates mold replacement, improves production efficiency, reduces labor intensity, and ensures mold precision and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses plastic cup mold replacing equipment which comprises a first mold frame and a second mold frame, an injection cavity is formed in the top of the first mold frame, a cavity disc is fixedly connected to the top of the second mold frame, an injection molding cavity is formed in the inner side of the injection cavity, and bottom molds are fixedly connected to the bottom of the first mold frame and the bottom of the second mold frame. The number of the bottom dies is two, a first die bottom and a second die bottom are arranged on the upper surfaces of the two sets of bottom dies correspondingly, penetrating holes are formed in the left side and the right side of the outer wall of the first die frame correspondingly, and lock pins are installed at the penetrating holes. According to the plastic cup mold replacement equipment, in order to accelerate the shaping speed, cooling liquid is guided in through a cooling liquid pipe and used for cooling an injection molding cavity between the first mold frame and an injection cavity, shaping is accelerated, injection molding liquid is located in a gap between a shaping column and the injection molding cavity, a thin wall of a plastic bottle is formed, and the first mold bottom and the second mold bottom are used for forming a bottle bottom; after the first mold frame and the second mold frame are split, the plastic bottles attached to the outer walls of the shaping columns can be taken down.
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Description

Technical Field

[0001] This utility model relates to the field of blister molds, specifically a plastic cup mold changing device. Background Technology

[0002] Plastic cups are widely used containers in daily life and industrial production, and their production efficiency and cost control have always been a focus of the plastics processing industry. As a core component in plastic cup production, the efficiency and accuracy of mold replacement directly affect the operating efficiency of the production line and product quality. However, traditional mold replacement methods have many problems, such as complex operation, long processing time, and high labor intensity. These problems seriously restrict the automation and efficiency of plastic cup production.

[0003] Existing plastic cup molds are difficult to disassemble during the shaping process, which increases labor intensity and is prone to operational errors, affecting the precision and service life of the mold. Utility Model Content

[0004] The purpose of this invention is to provide a plastic cup mold changing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic cup mold changing device includes a mold frame one and a mold frame two. The top of the mold frame one has an injection cavity, and the top of the mold frame two is fixedly connected to a cavity plate. An injection cavity is formed on the inner side of the injection cavity. The bottom of both the mold frame one and the mold frame two are fixedly connected to a bottom mold. There are two sets of bottom molds. The upper surfaces of the two sets of bottom molds are respectively provided with mold bottom one and mold bottom two. The outer walls of the mold frame one have through holes on both the left and right sides, and locking pins are installed at the through holes.

[0007] As a further embodiment of this utility model: one end of the locking pin passes through a hole in the outer wall of the first mold frame and is threadedly connected to the inner side of the second mold frame.

[0008] As a further improvement of this utility model, the second mold frame is fixedly connected to the central part of the first mold frame with a lifting lug.

[0009] As a further embodiment of this utility model: the outer wall of the mold frame is fixedly connected to the substrate 2, and the outer wall of the injection cavity is fixedly connected to the substrate 1.

[0010] As a further improvement of this utility model: the upper part of the injection cavity is provided with an upper cavity, and the upper cavity is fixedly connected to the bottom of the cavity plate.

[0011] As a further improvement of this utility model, a cooling liquid pipe is connected through the bottom of both sets of bottom molds.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this utility model, to accelerate the molding process, coolant is introduced through a cooling pipe to cool the injection cavity between mold frame one and injection cavity, thus speeding up the molding process. The injection liquid is located between the molding column and the injection cavity, forming a thin wall for the plastic bottle. Mold base one and mold base two are used to form the bottle bottom. After disassembling mold frame one and mold frame two, the plastic bottle attached to the outer wall of the molding column can be removed. Its structure is more optimized and its design is more reasonable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a plastic cup mold changing device.

[0015] Figure 2 This is an assembly drawing of a plastic cup mold changing device.

[0016] Figure 3 This is an exploded view of a plastic cup mold exchange device.

[0017] In the diagram: 1. Mold frame 1, 2. Injection cavity 2, 3. Mold frame 2, 4. Base plate 1, 5. Lifting lug 6. Cavity plate 7. Locking pin 8. Injection cavity 9. Bottom mold 10. Mold bottom 11. Base plate 2 12. Upper cavity 13. Cooling pipe 14. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 In this embodiment of the utility model, a plastic cup mold changing device includes a mold frame 1 and a mold frame 2 3. The top of the mold frame 1 is provided with an injection cavity 2. The top of the mold frame 2 3 is fixedly connected with a cavity plate 6. The inner side of the injection cavity 2 is provided with an injection molding cavity 8. The bottom of both the mold frame 1 and the mold frame 2 3 is fixedly connected with a bottom mold 9. There are two sets of bottom molds 9. The upper surfaces of the two sets of bottom molds 9 are respectively provided with a mold bottom 10 and a mold bottom 2 11. The outer walls of the mold frame 1 are provided with through holes on both the left and right sides, and locking pins 7 are installed at the through holes.

[0020] One end of the locking pin 7 passes through the hole in the outer wall of mold frame 1 and is threaded to the inner side of mold frame 2 3.

[0021] A lifting lug 5 is fixedly connected to the center of the mold frame 2 3 and the mold frame 1 1.

[0022] The outer wall of the mold frame 1 is fixedly connected to the substrate 2 12, and the outer wall of the injection cavity 2 is fixedly connected to the substrate 4.

[0023] The upper part of the injection cavity 8 is provided with an upper cavity 13, which is fixedly connected to the bottom of the cavity plate 6.

[0024] The bottom of the two sets of bottom molds 9 are connected by a cold liquid pipe 14.

[0025] The working principle of this utility model is as follows:

[0026] In use, the injection molding liquid is introduced into the injection cavity 8 through the cavity plate 6, and the shaping column is assembled into the injection cavity 8. There is a certain gap between the shaping column and the inner wall of the injection cavity 8. The injection molding liquid itself is in a molten state, and the injection molding liquid introduced into the injection cavity 8 solidifies to form a plastic bottle.

[0027] To accelerate the molding process, coolant is introduced through the cooling pipe 14 to cool the injection cavity 8 between the mold frame 1 and the injection cavity 2, thereby speeding up the molding process.

[0028] The injection liquid is located between the molding column and the injection cavity 8, forming a thin wall of the plastic bottle. Mold bottom 10 and mold bottom 21 are used to form the bottom of the bottle. After disassembling mold frame 1 and mold frame 23, the plastic bottle attached to the outer wall of the molding column can be removed.

[0029] 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 plastic cup mould changing apparatus comprising a first mould frame (1) and a second mould frame (3), characterised in that: The top of the first mold frame (1) is provided with an injection cavity (2), the top of the second mold frame (3) is fixedly connected with a cavity plate (6), the inner side of the injection cavity (2) is provided with an injection cavity (8), the bottom of the first mold frame (1) and the second mold frame (3) are both fixedly connected with a bottom mold (9), the number of bottom molds (9) is two sets, the upper surface of the two sets of bottom molds (9) is provided with mold bottom one (10) and mold bottom two (11) respectively, and the left and right sides of the outer wall of the first mold frame (1) are provided with through holes, and locking pins (7) are installed in the through holes.

2. A plastic cup mold exchange apparatus according to claim 1, characterized by: One end of the locking pin (7) passes through the perforation in the outer wall of the first mold frame (1) and is threaded to the inner side of the second mold frame (3).

3. A plastic cup mold exchange apparatus according to claim 1, characterized by: The second mold frame (3) is fixedly connected to the middle part of the first mold frame (1) with a lifting lug (5).

4. A plastic cup mold exchange apparatus according to claim 1, characterized by: The outer wall of the first mold frame (1) is fixedly connected to the second substrate (12), and the outer wall of the injection cavity (2) is fixedly connected to the first substrate (4).

5. A plastic cup mold exchange apparatus according to claim 1, characterized by: The upper part of the injection cavity (8) is provided with an upper cavity (13), and the upper cavity (13) is fixedly connected to the bottom of the cavity plate (6).

6. A plastic cup mold exchange apparatus according to claim 1, characterized by: The bottom of the two sets of bottom molds (9) are connected by a cold liquid pipe (14).