Rapid cooling forming device for bottle body

By combining scrapers and air-cooling components inside the plastic bottle mold, the problem of mold cooling efficiency being affected by external impurities is solved, thus achieving a highly efficient plastic bottle molding process.

CN224116684UActive Publication Date: 2026-04-14SUZHOU HONGXIN FOOD PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing technologies, the cooling efficiency of plastic bottle molds is affected by the accumulation of external impurities, resulting in a decrease in cooling effect, and air cooling methods have the problem of insufficient efficiency.

Method used

A rapid cooling and molding device for bottles was designed. The device uses a scraper to clean the inner wall of the mold while using an air-cooling component for cooling. The opening and closing of the mold and the reciprocating sliding of the scraper are realized through a drive component and a power mechanism, ensuring that the inner wall of the mold is clean and continuously cooled.

Benefits of technology

It improves the molding efficiency of plastic bottles, avoids the impact of external impurities on cooling efficiency, and ensures the cleanliness of the mold inner wall and continuous cooling effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bottle body production and processing, and particularly discloses a bottle body rapid cooling and forming device which comprises an equipment body, a bearing plate is connected to the equipment body in a sliding mode, molds used for forming bottle bodies are installed on the two sides of the bearing plate, and scraping strips used for cleaning the inner walls of the molds are connected into the molds in a sliding mode. A power mechanism used for driving the scraping strip to vertically slide in the mold in a reciprocating mode is further arranged between the bearing plate and the mold. And a driving assembly for driving the two molds to slide oppositely is arranged on the bearing plate. The scraping strip is driven by the power mechanism to slide in the mold in a reciprocating mode, at the moment, the inner side of the mold can be cleaned along with sliding of the scraping strip on the inner side of the mold, it is avoided that external impurities affect the cooling efficiency of the mold, and in the workpiece forming process, the air cooling piece is always in the working state to cool the mold; therefore, the forming efficiency of the bottle body can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of bottle production and processing technology, specifically to a bottle rapid cooling and forming device. Background Technology

[0002] Plastic bottles are mainly made of polyester, polyethylene, and polypropylene as raw materials. After adding appropriate organic solvents, they are heated at high temperatures and then formed into plastic containers through blow molding, extrusion blow molding, or injection molding using plastic molds. They are mainly used as disposable plastic packaging containers for liquids or solids such as beverages, food, pickles, and edible oils. During the processing of plastic bottles, the preform needs to be blow-formed to facilitate subsequent processing.

[0003] Blow molding is a common production method for plastic bottles. Blow molding processes generally include extrusion blow molding, injection blow molding, and injection stretch blow molding. Different types of plastic bottles can choose different molding processes based on their characteristics. Blow molding requires a blow molding machine (extrusion blow press), which injects the plasticized raw material into the mold through the extrusion section, and a blow molding section that blows air into the plastic material within the mold to shape it. Plastic bottles need to be heated during production to facilitate shaping, and then cooled to facilitate further molding. Currently, the most common method is to cool the blow molding mold by flushing it with water. Lowering the mold temperature effectively cools the plastic bottle, facilitating its molding process.

[0004] In the prior art, there is a Chinese patent with authorization announcement number CN222022180U entitled "A Plastic Bottle Blow Molding Apparatus". The patent discloses a plastic bottle blow molding apparatus, including a movable molding die, a nozzle, side connecting plates, and clamping plates. The clamping plates are used to clamp the molded plastic bottles. A movable cutting component is also provided above the pair of side connecting plates. The cutting component is used to cut off the edge material of the molded plastic bottles clamped on the clamping plates. The sides of the pair of side connecting plates are also connected to guide brackets through support frames. One end of the guide bracket extends to the conveyor belt between the pair of side connecting plates and the other end extends to the side of the support frame.

[0005] The aforementioned patent describes a method for trimming excess material from plastic bottles, allowing the intact bottles to be directly pushed onto a conveyor belt for continuous batch transport to the next process. It is known that excess material from plastic bottles must be cooled before trimming. In existing technologies, air cooling is typically used inside the mold to save costs. While ventilation slots are typically added to allow for airflow without affecting mold operation, over time, external impurities accumulate inside the mold, impacting cooling efficiency and presenting certain shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a rapid cooling and molding device for bottles to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bottle rapid cooling and forming device, comprising a device body, a support plate slidably connected to the device body, molds for bottle forming mounted on both sides of the support plate, a scraper for cleaning the inner wall of the mold slidably connected inside the mold, and a power mechanism for driving the scraper to slide vertically back and forth inside the mold between the support plate and the mold; and a drive assembly for driving the two molds to slide towards each other on the support plate, and an air-cooling component inside each mold.

[0008] Furthermore, the drive assembly includes a bidirectional lead screw rotatably connected to the support plate, each mold bottom is provided with a threaded sleeve, the two threaded sleeves are threadedly connected to both sides of the bidirectional lead screw, and the support plate is also provided with a servo motor for driving the bidirectional lead screw to rotate.

[0009] Furthermore, each mold has a slider at the bottom, and the support plate has a groove that matches the slider, with the slider and the groove slidably connected.

[0010] Furthermore, the power mechanism includes a reciprocating lead screw rotatably connected inside the mold, and the scraper is threadedly connected to the reciprocating lead screw via a connecting plate.

[0011] Furthermore, a linkage rod is rotatably connected to the mold, and a spur gear is installed on the linkage rod. A rack is also slidably connected inside the mold, and the rack meshes with the spur gear. The linkage rod is connected to a reciprocating lead screw through a synchronization unit.

[0012] Furthermore, a trigger block is fixedly connected to the support plate, and the trigger block intermittently abuts against the rack.

[0013] Furthermore, a positioning spring is provided between the rack and the mold to restrict the state of the rack.

[0014] Furthermore, the air-cooled component includes a mounting bracket fixedly connected inside the mold, and a cooling fan is provided on the mounting bracket.

[0015] Furthermore, the mold is provided with ventilation slots.

[0016] Furthermore, the scraper is provided with a cleaning groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: After the workpiece is cooled and formed, the drive component will drive the two molds to move away from each other. During the stroke of the two molds moving away from each other, the power mechanism drives the scraper to slide back and forth inside the mold. At this time, as the scraper slides inside the mold, it can clean the inside of the mold and avoid external impurities from affecting the cooling efficiency of the mold. In addition, during the workpiece forming process, the air-cooling component is always in working state to cool the mold, thereby improving the forming efficiency of the bottle and achieving better results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the mold sliding mechanism provided in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the installation method of the drive component provided in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of a partial structure of the mold provided in an embodiment of the present utility model;

[0023] Figure 5 A schematic diagram showing the power mechanism installed inside the mold according to an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the cooling fan installation method provided in an embodiment of the present utility model;

[0025] Figure 7 This is a partial structural diagram of the power mechanism provided in an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Equipment body; 2. Extrusion assembly; 3. Blow molding assembly; 4. Support plate; 5. Mold; 6. Ventilation slot; 7. Drive assembly; 71. Servo motor; 72. Bidirectional lead screw; 73. Threaded sleeve; 74. Slider; 8. Mounting bracket; 9. Cooling fan; 10. Scraper; 101. Connecting plate; 11. Power mechanism; 111. Reciprocating lead screw; 112. Linkage rod; 113. Synchronization unit; 114. Rack; 115. Trigger block. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-7 This utility model provides a technical solution: a bottle rapid cooling and forming device, including a device body 1, a support plate 4 slidably connected to the device body 1, molds 5 for bottle forming installed on both sides of the support plate 4, a scraper 10 for cleaning the inner wall of the mold 5 slidably connected inside the mold 5, and a power mechanism 11 for driving the scraper 10 to slide vertically back and forth inside the mold 5 is also provided between the support plate 4 and the mold 5; and a drive assembly 7 for driving the two molds 5 to slide towards each other is provided on the support plate 4, and an air-cooling component is also provided inside each mold 5.

[0029] Specifically, the rapid cooling and forming device for bottles includes a main body 1, on which an extrusion assembly 2 and a blow molding assembly 3 are mounted, which are existing technologies and will not be described in detail here. A support plate 4 is slidably connected to the main body 1, and a power component is provided on the main body 1 to drive the support plate 4 to slide, thereby adjusting the state of the mold 5 to meet operational needs. Molds 5 for bottle forming are mounted on both sides of the support plate 4. Specifically, the mold 5 also has two stations, which are used in cyclical cooperation with the extrusion assembly 2 and the blow molding assembly 3, and their working process is existing technology and will not be described in detail here. Furthermore, a scraper 10 for cleaning the inner wall of the mold 5 is slidably connected inside the mold 5. As the scraper 10 slides inside the mold 5, it can clean the inner side of the mold 5, preventing external impurities from affecting the cooling efficiency of the mold 5. Furthermore, a power mechanism 11 is provided between the support plate 4 and the mold 5 to drive the scraper 10 to slide vertically back and forth inside the mold 5, which improves the working effect. A drive assembly 7 is also provided on the support plate 4 to drive the two molds 5 to slide towards each other. The drive assembly 7 drives the molds 5 to open and close, facilitating the removal of the formed workpiece. Each mold 5 is also equipped with an air-cooling component. By providing the air-cooling component, the interior of the mold 5 can be cooled, thereby further improving the forming efficiency of the workpiece. As is known, the air-cooling component is always in operation during the workpiece forming process, cooling the mold 5. After the workpiece has cooled and formed, the drive assembly 7 will drive the two molds 5 to move away from each other. During the movement of the two molds 5 away from each other, the power mechanism 11 drives the scraper 10 to slide back and forth inside the mold 5. At this time, as the scraper 10 slides inside the mold 5, it can clean the inside of the mold 5, preventing external impurities from affecting the cooling efficiency of the mold 5. In addition, during the workpiece forming process, the air-cooling component is always in working condition to cool the mold 5, thereby improving the forming efficiency of the bottle and making the product more effective.

[0030] In the embodiments provided by this utility model, the driving component 7 includes a bidirectional lead screw 72 rotatably connected to the support plate 4. Each mold 5 has a threaded sleeve 73 at its bottom. The two threaded sleeves 73 are threadedly connected to both sides of the bidirectional lead screw 72. The support plate 4 is also provided with a servo motor 71 for driving the bidirectional lead screw 72 to rotate. When the servo motor 71 rotates, it will drive the two threaded sleeves 73 to move away from each other through the bidirectional lead screw 72, thereby driving the two molds 5 to move away from each other, which facilitates the unloading of the molded bottle and meets the working requirements.

[0031] In the embodiments provided by this utility model, each mold 5 is provided with a slider 74 at its bottom, and the bearing plate 4 is provided with a groove that matches the slider 74. The slider 74 is slidably connected to the groove, which can further improve the stability of the mold 5 during sliding and achieve better results.

[0032] In the embodiments provided by this utility model, the power mechanism 11 includes a reciprocating lead screw 111 rotatably connected inside the mold 5, and the scraper 10 is threadedly connected to the reciprocating lead screw 111 through a connecting plate 101. A linkage rod 112 is also rotatably connected to the mold 5, and a spur gear is provided on the linkage rod 112. A rack 114 is also slidably connected inside the mold 5, and the rack 114 meshes with the spur gear. The linkage rod 112 is drivenly connected to the reciprocating lead screw 111 through a synchronization unit 113. A trigger block 115 is fixedly connected to the bearing plate 4, and the trigger block 115 intermittently abuts against the rack 114. When in use, when the servo motor 71 drives the bidirectional lead screw 72 to rotate, it will cause the two molds 5 to move away from each other. When the mold 5 slides to the predetermined position, the rack 114 begins to abut against the trigger block 115. As the mold 5 continues to slide, the rack 114 drives the spur gear to rotate. At this time, the linkage rod 112 rotates through the reciprocating lead screw 111, thereby driving the scraper 10 to slide back and forth on the mold 5 to clean the inner wall of the mold 5, preventing external impurities from affecting the cooling efficiency of the mold 5 and meeting the working requirements.

[0033] In the embodiments provided by this utility model, a positioning spring is provided between the rack 114 and the mold 5 to restrict the state of the rack 114 so that the rack 114 maintains a constant state without the action of other external forces, which has a better effect.

[0034] In the embodiments provided by this utility model, the air-cooling component includes a mounting bracket 8 fixedly connected inside the mold 5, and a cooling fan 9 is provided on the mounting bracket 8. The cooling fan 9 is a prior art technology, which can be driven to rotate by an internal power source to cool the inside of the mold 5 with excellent effect.

[0035] In the embodiments provided by this utility model, ventilation grooves 6 are provided on the mold 5 to achieve a ventilation effect.

[0036] In the embodiments provided by this utility model, a cleaning groove is provided on the scraper 10 to further improve the cleaning efficiency of the scraper 10 and meet the work requirements.

[0037] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling and forming device for bottles, comprising a device body (1), wherein a support plate (4) is slidably connected to the device body (1), and molds (5) for bottle forming are installed on both sides of the support plate (4), characterized in that: The mold (5) is slidably connected to a scraper (10) for cleaning the inner wall of the mold (5), and a power mechanism (11) for driving the scraper (10) to slide vertically back and forth inside the mold (5) is also provided between the support plate (4) and the mold (5). Furthermore, the support plate (4) is provided with a drive assembly (7) for driving the two molds (5) to slide towards each other, and each mold (5) is also provided with an air-cooling component.

2. The bottle rapid cooling and forming device according to claim 1, characterized in that: The drive assembly (7) includes a bidirectional lead screw (72) rotatably connected to the support plate (4), and each mold (5) is provided with a threaded sleeve (73) at the bottom. The two threaded sleeves (73) are threadedly connected to both sides of the bidirectional lead screw (72), and the support plate (4) is also provided with a servo motor (71) for driving the bidirectional lead screw (72) to rotate.

3. The bottle rapid cooling and forming device according to claim 2, characterized in that: Each mold (5) is provided with a slider (74) at its bottom, and the support plate (4) is provided with a groove that matches the slider (74), and the slider (74) is slidably connected to the groove.

4. The bottle rapid cooling and forming device according to claim 2, characterized in that: The power mechanism (11) includes a reciprocating lead screw (111) rotatably connected inside the mold (5), and the scraper (10) is threadedly connected to the reciprocating lead screw (111) through a connecting plate (101).

5. The bottle rapid cooling and forming device according to claim 4, characterized in that: A linkage rod (112) is rotatably connected to the mold (5), and a spur gear is provided on the linkage rod (112). A rack (114) is also slidably connected inside the mold (5), and the rack (114) meshes with the spur gear. The linkage rod (112) is connected to the reciprocating lead screw (111) through a synchronization unit (113).

6. The bottle rapid cooling and forming device according to claim 5, characterized in that: A trigger block (115) is fixedly connected to the bearing plate (4), and the trigger block (115) intermittently abuts against the rack (114).

7. The bottle rapid cooling and forming device according to claim 5, characterized in that: A positioning spring is provided between the rack (114) and the mold (5) to restrict the state of the rack (114).

8. The bottle rapid cooling and forming device according to claim 1, characterized in that: The air-cooled component includes a mounting bracket (8) fixedly connected inside the mold (5), and a heat dissipation fan (9) is provided on the mounting bracket (8).

9. The bottle rapid cooling and forming device according to claim 1, characterized in that: The mold (5) is provided with ventilation slots (6).

10. The bottle rapid cooling and forming device according to claim 1, characterized in that: The scraper (10) has a cleaning groove.

Citation Information

Patent Citations

  • Plastic bottle blow molding device

    CN222022180U