Intelligent manufacturing device for food-grade plastic package

By introducing a drying support net and a hot airflow drying system into the injection molding device, combined with a proportioning box and a porous discharge wheel to control the proportion and mixing of raw materials, the molding quality problem caused by moisture in the injection molding raw materials was solved, thus improving the molding quality and stability of plastic packaging.

CN120816660APending Publication Date: 2025-10-21SHANDONG SHENGYOU INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202511205777.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2025-10-21

AI Technical Summary

Technical Problem

During the injection molding process, the raw materials are prone to moisture absorption during transportation and storage, which can cause air bubbles to be present inside the plastic parts, affecting the molding quality and strength.

Method used

A smart manufacturing device for food-grade plastic packaging was designed, including a drying support net, a roller assembly, and an electric heater. The raw materials are spread out by the drying support net and dried using hot airflow. Combined with a proportioning box and a porous discharge wheel, the proportion and mixing of the raw materials are controlled to ensure that the raw materials are dried and mixed evenly.

Benefits of technology

It effectively prevents raw materials from getting damp, improves the quality and physical properties of injection-molded products, and ensures the stability and strength of plastic parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent manufacturing device for food-grade plastic packages, and relates to the technical field of injection molding. The food-grade plastic package intelligent manufacturing device comprises a device body, a package forming assembly is fixedly connected to the front face of the device body, an injection molding assembly is fixedly connected to the left side of the package forming assembly, and a feeding assembly is fixedly connected to the top of the injection molding assembly; and the front surface of the device main body is fixedly connected with a distributing assembly at the top of the feeding assembly. According to the intelligent manufacturing device for the food-grade plastic package, through the effect that stacked raw materials are gradually pushed to the right side by the four push plates with the lengths gradually increased, the raw materials are spread out in the guide groove and pushed into the feeding hopper, so that flowing airflow heated by the electric heater conveniently dries the injection molding raw materials; the raw materials are prevented from being affected by damp, so that the quality of a finally formed product can be improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of injection molding, and in particular to an intelligent manufacturing device for food-grade plastic packaging. Background Art

[0002] Food-grade plastics refer to those plastic materials that have undergone rigorous evaluation and meet specific national safety and sanitation standards. They are safe for food contact and will not migrate toxic or hazardous substances into food, thereby protecting consumer health. They are typically made of resins such as polyethylene, polypropylene, polyethylene terephthalate, and polycarbonate. They are certified under regulations such as China's GB 4806 series, the US FDA, or EU 10 / 2011. This ensures that they are chemically stable under their intended use conditions, whether for holding hot or cold food, beverages, or oils, and will not release substances that threaten human health. The patent cited in China with application number 202210733033.1 discloses a self-sterilizing intelligent manufacturing device for food-grade plastic packaging containers, which relates to the field of plastic container manufacturing technology and includes an extrusion component, a mold component, a sterilization component, a movable frame, a servo module, a servo electric cylinder, a suction plate, and a workbench. The extrusion component is located on the side of the workbench close to the edge, the mold component is located on the side of the extrusion component close to the center of the workbench, the sterilization component is located on the side of the mold component away from the extrusion component, the extrusion component and the mold component are connected, the movable frame is arranged above the mold component and the sterilization component, the servo module is fastened to the upper surface of the movable frame, the servo electric cylinder is fastened to the mobile platform of the servo module, the servo electric cylinder is vertically arranged, and the suction plate is rotatably connected to the output shaft of the servo electric cylinder; During the injection molding process, the raw materials for injection molding are easily affected by moisture during transportation and storage, which in turn causes bubbles to be contained inside the injection-molded parts, affecting the molding quality of the parts and causing a significant decrease in the strength of the parts during use. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides an intelligent manufacturing device for food-grade plastic packaging to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a food-grade plastic packaging intelligent manufacturing device, comprising a device body, a packaging molding assembly fixedly connected to the front of the device body, an injection molding assembly fixedly connected to the left side of the packaging molding assembly, a feeding assembly fixedly connected to the top of the injection molding assembly, and a material dispensing assembly fixedly connected to the front of the device body located on the top of the feeding assembly; The feed assembly includes: The support platform is fixedly connected to the front of the device body and located on the top of the injection molding component. The top of the support platform is located in front and behind the drying support net and has inclined surfaces to keep the material on the top of the drying support net and prevent the raw materials from being pushed away. A drying support net, wherein the drying support net is arranged inside the support platform; A feeding funnel is fixedly connected to the bottom of the support platform, and the bottom of the feeding funnel is fixedly connected to the injection molding component.

[0005] Preferably, the front of the device body is located on the top of the drying support net and is fixedly connected to a roller group, the outer wall of the roller group is movably connected to a push belt, the outer wall of the push belt is fixedly connected to a push plate group, and the left side of the support platform is fixedly connected to a material guide trough.

[0006] Preferably, the push plate group includes a first push plate, a second push plate, a third push plate and a fourth push plate, and the lengths of the first push plate, the second push plate, the third push plate and the fourth push plate increase sequentially from left to right.

[0007] Preferably, the bottom of the support platform is located at the bottom of the material guide trough and is fixedly connected to an airflow shielding cover, the inside of the airflow shielding cover is fixedly connected to an electric heater, and the left side of the airflow shielding cover is fixedly connected to a fan motor.

[0008] Preferably, the material dividing assembly includes a proportional box, which is fixedly connected to the front of the device body and located at the top of the material guide trough. A proportional plate is movably connected inside the proportional box, and the outer walls of the proportional plate are located on the left and right sides of the proportional box and are fixedly connected with pushing blocks. The outer wall of the proportional box is provided with a corresponding screw motor which can drive the pushing block to move on the outer wall of the proportional box through the screw. The position of the proportional plate inside the proportional box can control the discharge ratio of the two raw materials inside the proportional box. Changing the position of the proportional plate inside the proportional box will change the bottom area of ​​different raw materials inside the proportional box, and the ratio of the bottom areas is the ratio of the discharge amounts.

[0009] Preferably, a porous discharge wheel is movably connected to the bottom of the proportional box, a first drive motor is fixedly connected to the back of the proportional box, and an output shaft of the first drive motor is fixedly connected to the porous discharge wheel.

[0010] Preferably, the inner wall of the feeding funnel close to the drying support net is fixedly connected with several material distribution plates, the inside of the feeding funnel is movably connected with a connecting plate at the top of the material distribution plate, the right side of the connecting plate is fixedly connected with a residual material pushing plate at the top of the material distribution plate, the front of the connecting plate is fixedly connected with a telescopic rod, and the telescopic rod is fixedly connected to the bottom of the support platform.

[0011] Preferably, a second drive motor is fixedly connected to the inside of the feed funnel, and a stirring and mixing frame is fixedly connected to the bottom of the second drive motor.

[0012] The present invention provides an intelligent manufacturing device for food-grade plastic packaging. It has the following beneficial effects: 1. This intelligent manufacturing device for food-grade plastic packaging uses four push plates with increasing lengths to gradually push the accumulated raw materials to the right, so that the raw materials are spread out in the material guide trough and pushed into the feed funnel, so that the flowing airflow heated by the electric heater can dry the injection molding raw materials, so that the raw materials can be kept dry during injection molding, avoiding the influence of moisture on the injection molding, thereby improving the quality of the final molded product.

[0013] 2. This intelligent manufacturing device for food-grade plastic packaging moves the proportion plate in the proportion box and controls the discharge speed by rotating the porous discharge wheel, so that the discharge ratio is precisely controlled. The dividing plate allows the two raw materials to fully contact each other, making it easier for the mixing frame to rotate to mix the raw materials, promoting uniform mixing of the two raw materials, and stabilizing the physical properties of the final molded plastic parts, which is beneficial to improving product quality.

[0014] 3. The food-grade plastic packaging intelligent manufacturing device discharges materials through the porous discharge wheel and evenly falls to the top of the guide trough, allowing the materials to slide evenly to the top of the support table, avoiding the state of raw materials forming a pile on the top of the support table. The raw materials can be better spread out when pushed by the push plate group, thereby improving the drying effect and improving the molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 This is a bottom-up perspective structural diagram of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention from a top view; Figure 4 for Figure 1 A schematic diagram of the enlarged structure of the middle part A; Figure 5 for Figure 2 A schematic diagram of the enlarged structure of the middle B part; Figure 6 Schematic diagram of the internal structure of the airflow shielding cover of the present invention; Figure 7 for Figure 2 The enlarged structural diagram of the middle C part; Figure 8 for Figure 3 Schematic diagram of the enlarged structure of part D in the middle.

[0016] In the figure: 1. Device body; 2. Packaging molding component; 3. Injection molding component; 4. Feeding component; 401. Support platform; 402. Material guide trough; 403. Drying support net; 404. Roller group; 405. Push belt; 406. Push plate group; 4061. First push plate; 4062. Second push plate; 4063. Third push plate; 4064. Fourth push plate; 407. Feeding funnel; 408. Airflow shielding cover; 409. Electric heater; 410. Fan motor; 5. Material distributing component; 501. Proportional box; 502. Proportional plate; 503. First drive motor; 504. Multi-hole discharge wheel; 505. Pushing block; 506. Material distributing plate; 507. Connecting plate; 508. Telescopic rod; 509. Residual material push plate; 510. Second drive motor; 511. Stirring and mixing rack. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0019] Example 1: Please refer to Figure 1-6 The present invention provides a technical solution: a food-grade plastic packaging intelligent manufacturing device, comprising a device body 1, a packaging molding component 2 is fixedly connected to the front of the device body 1, an injection molding component 3 is fixedly connected to the left side of the packaging molding component 2, a feeding component 4 is fixedly connected to the top of the injection molding component 3, and a material distribution component 5 is fixedly connected to the top of the feeding component 4 on the front of the device body 1; The feed assembly 4 comprises: The support platform 401 is fixedly connected to the front of the device body 1 and is located on the top of the injection molding component 3. The top of the support platform 401 is located in front and behind the drying support net 403 and has inclined surfaces to help the material stay on the top of the drying support net 403 to prevent the raw materials from being pushed away; Drying support net 403, the drying support net 403 is arranged inside the support platform 401; The feeding funnel 407 is fixedly connected to the bottom of the support platform 401 , and the bottom of the feeding funnel 407 is fixedly connected to the injection molding component 3 .

[0020] The injection molding raw materials with good proportions are put into the feeding funnel 407, injected into the mold inside the packaging molding component 2 through the injection molding component 3 for molding, and then demoulded by the packaging molding component 2 to complete the molding production of the plastic packaging.

[0021] The raw materials are added to the drying support net 403 and pushed into the support platform 401. The front of the device body 1 is located on the top of the drying support net 403 and is fixedly connected to a roller group 404. The outer wall of the roller group 404 is movably connected to a push belt 405. The outer wall of the push belt 405 is fixedly connected to a push plate group 406. The left side of the support platform 401 is fixedly connected to a material guide trough 402. A structure for driving the roller group 404 to rotate is provided inside the device body 1.

[0022] Put the injection molding raw materials into the guide trough 402, and the raw materials will slide from the top of the guide trough 402 to the top of the support platform 401. Then the roller group 404 drives the push belt 405 to rotate, so that the push plate group 406 pushes the raw materials from the top of the drying support net 403 to the right, and pushes the raw materials into the feeding funnel 407 through the push plate group 406. By pushing in layers, the injection molding raw materials can be spread out to facilitate drying of the raw materials. The push plate group 406 includes a first push plate 4061, a second push plate 4062, a third push plate 4063 and a fourth push plate 4064. The lengths of the first push plate 4061, the second push plate 4062, the third push plate 4063 and the fourth push plate 4064 increase from left to right.

[0023] When the push belt 405 is driven, the first push plate 4061, the second push plate 4062, the third push plate 4063, and the fourth push plate 4064 push the injection raw materials in sequence. Since the lengths of the four push plates increase in sequence, the accumulated raw materials are gradually pushed to the right, so that the raw materials obtain a larger contact area with the material guide groove 402 in the process of being pushed into the feed funnel 407, which facilitates the drying of the injection molding raw materials.

[0024] The injection molding raw materials can be dried by the flowing hot air flow. The bottom of the support platform 401 is located at the bottom of the material guide trough 402 and is fixedly connected to an airflow shielding cover 408. An electric heater 409 is fixedly connected inside the airflow shielding cover 408. A fan motor 410 is fixedly connected to the left side of the airflow shielding cover 408.

[0025] The fan motor 410 continuously pushes the outside air into the airflow shielding cover 408, so that the pushed air is heated by the electric heater 409 and converted into hot air flow to be discharged upward from the top of the drying support net 403, heating the injection molding raw materials and then drying the injection molding raw materials.

[0026] Example 2: Please refer to Figure 1-8Based on the first embodiment, the present invention provides a technical solution: Uneven mixing of the injection molding raw materials will lead to the physical properties of the final injection molded product, affecting the quality of the final molded product. The material distribution component 5 includes a proportional box 501, which is fixedly connected to the front of the device body 1 and located at the top of the material guide groove 402. The proportional box 501 is movably connected to a proportional plate 502. The outer wall of the proportional plate 502 is located on the left and right sides of the proportional box 501 and is fixedly connected to a push block 505. The outer wall of the proportional box 501 is provided with a corresponding screw motor, which can drive the push block 505 to move on the outer wall of the proportional box 501 through the screw.

[0027] The raw materials to be mixed are placed inside the proportion box 501 on both sides of the proportion plate 502. Then, when the materials are discharged from the bottom of the proportion box 501, the position of the proportion plate 502 inside the proportion box 501 can control the discharge ratio of the two raw materials inside the proportion box 501. Changing the position of the proportion plate 502 inside the proportion box 501 will change the bottom area of ​​different raw materials inside the proportion box 501. The ratio of the bottom areas is the ratio of the discharge amounts, which makes it easy to control the discharge ratio.

[0028] By keeping the same discharge speed for the raw materials on the left and right sides of the proportional plate 502 at the bottom of the proportional box 501, it can be ensured that the proportion of the raw materials that finally enter the feed funnel 407 is a fixed value. The bottom of the proportional box 501 is movably connected to a porous discharge wheel 504, and the back of the proportional box 501 is fixedly connected to a first drive motor 503, and the output shaft of the first drive motor 503 is fixedly connected to the porous discharge wheel 504.

[0029] The openings provided on the outer wall of the porous discharge wheel 504 will allow the raw materials to be stuck inside. As the porous discharge wheel 504 is driven to rotate by the first drive motor 503, the rotation of the porous discharge wheel 504 will rotate the raw materials in the holes to the bottom of the porous discharge wheel 504 for discharge, thereby ensuring that the discharge speeds on the left and right sides of the proportion plate 502 are the same, ensuring the stability of the mixing ratio between different raw materials.

[0030] At the same time, the material discharged by the porous discharge wheel 504 will fall evenly to the top of the guide trough 402, so that when the material slides into the top of the support platform 401 through the guide trough 402, it will be evenly distributed front and back, avoiding the formation of a pile of raw materials on the top of the support platform 401, so that the raw materials can be better spread out when pushed by the push plate group 406, which is convenient for drying the raw materials.

[0031] After the raw materials enter the feed funnel 407, the two raw materials need to be mixed. Several dividing plates 506 are fixedly connected to the inner wall of the feed funnel 407 close to the drying support net 403. A connecting plate 507 is movably connected to the top of the dividing plate 506 inside the feed funnel 407. A residual material pushing plate 509 is fixedly connected to the top of the dividing plate 506 on the right side of the connecting plate 507. A telescopic rod 508 is fixedly connected to the front of the connecting plate 507, and the telescopic rod 508 is fixedly connected to the bottom of the support platform 401.

[0032] A second driving motor 510 is fixedly connected to the interior of the feeding funnel 407 , and a stirring and mixing frame 511 is fixedly connected to the bottom of the second driving motor 510 .

[0033] The dividing plate 506 will intercept part of the raw materials pushed into the feed funnel 407 by the push plate group 406, causing the parts of the two raw materials to contact each other first, and then as the telescopic rod 508 extends and retracts, it will push the residual material push plate 509 through the connecting plate 507, so that the residual material push plate 509 pushes the raw materials on the top of the dividing plate 506 into the feed funnel 407, avoiding the stratification of the raw materials after entering the feed funnel 407, and the second drive motor 510 drives the stirring and mixing frame 511 to rotate to stir the raw materials, so as to promote the uniform mixing of the two raw materials.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A food-grade plastic packaging intelligent manufacturing device, comprising a device body (1), characterized in that: The front of the device body (1) is fixedly connected to a packaging molding component (2), the left side of the packaging molding component (2) is fixedly connected to an injection molding component (3), the top of the injection molding component (3) is fixedly connected to a feeding component (4), and the front of the device body (1) is fixedly connected to a material distribution component (5) located on the top of the feeding component (4); The feed assembly (4) comprises: A support platform (401), the support platform (401) is fixedly connected to the front of the device body (1) and located on top of the injection molding component (3); A drying support net (403), wherein the drying support net (403) is arranged inside the support platform (401); A feeding funnel (407) is fixedly connected to the bottom of the support platform (401), and the bottom of the feeding funnel (407) is fixedly connected to the injection molding component (3).

2. The intelligent manufacturing device for food-grade plastic packaging according to claim 1, characterized in that: The front of the device body (1) is located on the top of the drying support net (403) and is fixedly connected to a roller group (404); the outer wall of the roller group (404) is movably connected to a push belt (405); the outer wall of the push belt (405) is fixedly connected to a push plate group (406); and the left side of the support platform (401) is fixedly connected to a material guide trough (402).

3. The intelligent manufacturing device for food-grade plastic packaging according to claim 2, characterized in that: The push plate group (406) includes a first push plate (4061), a second push plate (4062), a third push plate (4063) and a fourth push plate (4064), and the lengths of the first push plate (4061), the second push plate (4062), the third push plate (4063) and the fourth push plate (4064) increase from left to right.

4. The intelligent manufacturing device for food-grade plastic packaging according to claim 1, characterized in that: The bottom of the support platform (401) is located at the bottom of the material guide trough (402) and is fixedly connected to an airflow shielding cover (408). An electric heater (409) is fixedly connected inside the airflow shielding cover (408). A fan motor (410) is fixedly connected to the left side of the airflow shielding cover (408).

5. The intelligent manufacturing device for food-grade plastic packaging according to claim 2, characterized in that: The material distribution assembly (5) includes a proportional box (501), which is fixedly connected to the front of the device body (1) and located at the top of the material guide trough (402). A proportional plate (502) is movably connected inside the proportional box (501), and the outer wall of the proportional plate (502) is located on the left and right sides of the proportional box (501) and is fixedly connected to a push block (505). The outer wall of the proportional box (501) is provided with a corresponding screw motor that can drive the push block (505) to move on the outer wall of the proportional box (501) through the screw.

6. The intelligent manufacturing device for food-grade plastic packaging according to claim 5, characterized in that: The bottom of the proportional box (501) is movably connected to a porous discharge wheel (504), the back of the proportional box (501) is fixedly connected to a first drive motor (503), and the output shaft of the first drive motor (503) is fixedly connected to the porous discharge wheel (504).

7. The intelligent manufacturing device for food-grade plastic packaging according to claim 1, characterized in that: Several material distribution plates (506) are fixedly connected to the inner wall of one side of the feeding funnel (407) close to the drying support net (403); a connecting plate (507) is movably connected to the top of the material distribution plate (506) inside the feeding funnel (407); a residual material pushing plate (509) is fixedly connected to the right side of the connecting plate (507) and the top of the material distribution plate (506); a telescopic rod (508) is fixedly connected to the front of the connecting plate (507); and the telescopic rod (508) is fixedly connected to the bottom of the support platform (401).

8. The intelligent manufacturing device for food-grade plastic packaging according to claim 1, characterized in that: A second drive motor (510) is fixedly connected to the interior of the feed funnel (407), and a stirring and mixing frame (511) is fixedly connected to the bottom of the second drive motor (510).

Citation Information

Patent Citations

  • Self-sterilization type intelligent manufacturing device for food-grade plastic packaging container

    CN114801026A