Plastic bottle production device for food processing
By using a drive mechanism and rack and pinion transmission technology, the problems of mold opening and closing and bottle feeding deviations were solved, enabling precise feeding and molding of plastic bottles, thus improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGTAI ZHULIN HIGH-TECH MATERIALS CO LTD
- Filing Date
- 2026-03-13
- Publication Date
- 2026-04-14
AI Technical Summary
In traditional mold forming processes, deviations in timing or position during the mold opening and closing drive and the feeding of plastic bottles can easily occur, leading to processing failures and affecting production efficiency and product quality.
The system employs a drive mechanism to coordinate the conveying and clamping mechanisms, and uses gear and rack transmission to achieve precise synchronization of the mold. Combined with the blow molding and discharge mechanisms, it ensures accurate feeding and molding of plastic bottles.
It achieves precise synchronization between mold opening and closing and bottle feeding, improving processing success rate, production efficiency and product quality.
Smart Images

Figure CN121848645A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of food processing technology, and in particular to a plastic bottle production apparatus for food processing. Background Technology
[0002] A food processing plastic bottle production line is a specialized system for producing plastic bottles for food packaging. This system typically includes several key stages: raw material preparation, plastic molding, bottle forming, quality inspection, and packaging. First, the plastic raw material (such as polyethylene terephthalate, PET) is dried and melted, then molded into preforms or directly into bottles using processes like injection molding or blow molding. During molding, parameters such as temperature, pressure, and cooling must be precisely controlled to ensure the bottle's quality and performance. Next, the bottles undergo a series of quality inspections, such as visual inspection, sealing tests, and pressure resistance tests, to ensure they meet food safety and packaging requirements. Finally, qualified bottles are packaged and sent to food processing plants for filling and use. The high degree of automation and precision control in food processing plastic bottle production lines ensures high production efficiency and product quality, meeting the food industry's high standards for packaging safety and hygiene.
[0003] In the food processing industry, plastic bottles are common packaging containers, and their production process typically employs traditional mold-forming technology. Specifically, the production process involves wrapping the plastic raw material with a mold, followed by blow molding and rapid cooling to form the bottle. However, this mold-forming method has certain drawbacks in practical applications. During operation, an additional drive mechanism is required to control the automatic opening and closing of the mold. However, timing or positional discrepancies can easily occur between the mold's opening / closing drive and the bottle's feeding process. If these two processes are not properly coordinated, processing failures can occur, affecting production efficiency and product quality. Summary of the Invention
[0004] One objective of this invention is to provide a plastic bottle production apparatus for food processing. This invention addresses the problem mentioned in the background that, during operation, an additional drive mechanism must be provided to control the automatic opening and closing of the mold. However, the opening and closing drive of the mold and the feeding of the plastic bottle are prone to time or positional deviations. If the two are not properly coordinated, it will lead to processing failure, affecting production efficiency and product quality.
[0005] An apparatus for producing plastic bottles for food processing according to an embodiment of the present invention includes... A processing table is a platform used to support conveying mechanisms, clamping mechanisms, drive mechanisms, blow molding mechanisms, and discharge mechanisms. The conveying mechanism includes a first rotating shaft and a connecting rod, wherein the connecting rod is rotatably connected to the upper surface of the processing table via the first rotating shaft; The driving mechanism includes a moving mold and a fixed mold. A first gear is fixedly connected to the side surface of the first rotating shaft. A second gear, a third gear, a fourth gear, and a sixth gear are rotatably connected to the upper surface of the processing table. A fifth gear is fixedly connected to the upper surface of the fourth gear. Racks are meshed on the outer sides of both the fifth gear and the sixth gear. The racks are fixedly connected to one side of the moving mold. The fixed mold is fixedly connected to the upper surface of the processing table. The blow molding mechanism includes a blow molding tube, and a fixed frame is fixedly connected to one side of the upper surface of the processing table. The blow molding tube is movably connected to the side surface of the fixed frame.
[0006] Preferably, a drive motor is fixedly connected to one side of the upper surface of the processing table, and the first rotating shaft is driven to the output end of the drive motor.
[0007] Preferably, the clamping mechanism is installed at the outer end of the connecting rod, and the clamping mechanism includes a clamping block, with a fixing block fixedly connected to the outer end of the connecting rod.
[0008] Preferably, the clamping block is movably connected to both sides of the surface of the fixed block, and a plastic bottle opening is provided on the inner side of the clamping block.
[0009] Preferably, a fixing plate is fixedly connected to the outer surface of the fixing block, and the clamping block is movably connected to the inner side of the fixing plate through an elastic component.
[0010] Preferably, the first gear and the second gear mesh with each other, the upper surface of the second gear is fixedly connected to a second tooth column, the second gear and the third gear mesh with each other, and the upper surface of the third gear is fixedly connected to a third tooth column.
[0011] Preferably, the fourth gear meshes with the second and third gears respectively. Through the continuous rotation of the second and third gears, the second and third gears drive the fourth gear to reciprocate.
[0012] Preferably, the rack is slidably connected to the upper surface of the processing table via a fixed post, and slide rails are fixedly connected to both sides of the upper surface of the processing table. The moving mold is slidably connected to the surface of the slide rails, and a limiting block is fixedly connected to one end of the slide rails to limit the sliding trajectory of the moving mold.
[0013] Preferably, a first push rod is fixedly connected to the side surface of the fixing frame, the blow molding tube is fixedly connected to the telescopic end of the first push rod, and a sealing cap is fixedly connected to the upper end of the blow molding tube.
[0014] Preferably, the discharge mechanism is installed on the lower surface of the processing table. The discharge mechanism includes a cover and a second push rod. The cover is hinged to the lower surface of the processing table. The lower surface of the cover is rotatably connected to the telescopic end of the second push rod through a first rotating block. The fixed end of the second push rod is rotatably connected to the lower surface of the processing table through the second rotating block.
[0015] The beneficial effects of this invention are: This invention utilizes a drive mechanism that, while a drive motor powers a conveying and clamping mechanism to transport plastic bottles before blow molding, a first gear in the drive mechanism drives a second and third gear to rotate. Since the second and third gears mesh, they rotate in opposite directions. A second and third toothed column, fixedly mounted on the upper surfaces of the second and third gears, meshes with a fourth gear, causing the fourth gear to reciprocate. Because the fourth and fifth gears share a single axis, their reciprocating rotation simultaneously drives the fifth gear to reciprocate. The interaction between the fifth and sixth gears causes the two racks on either side to slide horizontally, ultimately driving the moving mold... The surface of the processing table slides back and forth. When the moving mold slides towards the fixed mold, the fixed mold and the moving mold fit together to form a sealed space. Then, the blow molding tube of the blow molding mechanism is inserted into the mouth of the plastic bottle for blow molding. After the fixed mold and the moving mold rapidly cool the plastic bottle, the processing is completed. During the rotation of the conveying mechanism, the moving mold moves away from the fixed mold, opening up the internal space of the mold. The material is then discharged through the discharge mechanism. The next plastic bottle before blow molding is then sent between the fixed molds for the next blow molding process. Thus, the linkage between the conveying mechanism and the mold is achieved through the drive mechanism, realizing precise synchronization and avoiding the deviation that is easy to occur in the mold opening and closing and bottle feeding in the traditional method. This effectively improves the processing success rate, production efficiency and product quality. This invention utilizes a blow molding mechanism and a clamping mechanism. When a plastic bottle is conveyed by a conveying mechanism before blow molding, the bottle is placed inside the clamping mechanism. The clamping blocks are pressed together by elastic components on both sides of the clamping mechanism, thus securing the bottle. When the bottle rotates to the top of the mold, the first push rod of the blow molding mechanism pushes the blow molding head downwards. After the blow molding head enters the bottle, a sealing cap fixed to the top of the blow molding head covers the bottle opening, sealing the bottle. The first push rod then extends further, pressing the blow molding head and bottle downwards until the bottle leaves the clamping mechanism and is fully inserted between the fixed and moving molds. The blow molding head causes the bottle to expand and form. Through the clamping and fixing mechanism working in conjunction with the blow molding mechanism, the bottle is precisely fed into the mold and sealed during blow molding, ensuring molding accuracy and processing stability. This invention, through its discharge mechanism, allows the plastic bottle to be processed, molded, and cooled. The second push rod of the discharge mechanism shortens, and the first rotating block at the telescopic end of the second push rod pulls the cover downwards, allowing the molded plastic bottle to fall from the middle of the molds on both sides, completing the discharge. After discharge, the second push rod extends, closing the cover upwards to facilitate blow molding of the next plastic bottle. This simplifies the discharge process and improves production efficiency and continuity. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of a plastic bottle production device for food processing proposed in this invention; Figure 2 This is a three-dimensional schematic diagram of the clamping mechanism in a plastic bottle production device for food processing proposed in this invention. Figure 3 This is a schematic diagram of the structure of the upper surface drive mechanism on the processing table in a plastic bottle production device for food processing proposed in this invention. Figure 4 This invention provides a plastic bottle production apparatus for food processing. Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional schematic diagram of the drive mechanism in a plastic bottle production device for food processing proposed in this invention. Figure 6 This is a schematic diagram of the lower surface discharge mechanism of a plastic bottle production device for food processing proposed in this invention. Figure 7 This invention provides a plastic bottle production apparatus for food processing. Figure 6 Enlarged view of point B in the middle; In the diagram: 1. Processing table; 2. Conveying mechanism; 201. Drive motor; 202. First rotating shaft; 203. Connecting rod; 3. Clamping mechanism; 301. Fixing block; 302. Fixing plate; 303. Elastic component; 304. Clamping block; 305. Plastic bottle neck; 4. Drive mechanism; 401. First gear; 402. Second gear; 403. Second gear post; 404. Third gear; 405. Third gear post; 406. Fourth gear... 407. Gear; 408. Fifth gear; 409. Sixth gear; 410. Fixed column; 411. Rack; 412. Moving mold; 413. Slide rail; 414. Limiting block; 415. Fixed mold; 5. Blow molding mechanism; 501. Fixed frame; 502. First push rod; 503. Blow molding tube; 504. Sealing cover; 6. Discharge mechanism; 601. Baffle; 602. First rotating block; 603. Second rotating block; 604. Second push rod. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0018] refer to Figure 1-7 A plastic bottle production apparatus for food processing includes the following embodiments; Example 1: A plastic bottle production apparatus for food processing includes a processing table 1, which is a platform for supporting a conveying mechanism 2, a clamping mechanism 3, a driving mechanism 4, a blow molding mechanism 5, and a discharging mechanism 6. A drive motor 201 is fixedly connected to one side of the upper surface of the processing table 1, and a first rotating shaft 202 is drivenly connected to the output end of the drive motor 201.
[0019] Example 2: The conveying mechanism 2 includes a first rotating shaft 202 and a connecting rod 203. The connecting rod 203 is rotatably connected to the upper surface of the processing table 1 through the first rotating shaft 202. The clamping mechanism 3 is installed on the outer end of the connecting rod 203. The clamping mechanism 3 includes a clamping block 304. A fixing block 301 is fixedly connected to the outer end of the connecting rod 203. The clamping block 304 is movably connected to both sides of the surface of the fixing block 301. A plastic bottle neck 305 is provided on the inner side of the clamping block 304. A fixing plate 302 is fixedly connected to the outer surface of the fixing block 301. The clamping block 304 is movably connected to the inner side of the fixing plate 302 through an elastic component 303.
[0020] Example 3: The drive mechanism 4 includes a moving mold 411 and a fixed mold 414. A first gear 401 is fixedly connected to the side surface of the first rotating shaft 202. A second gear 402, a third gear 404, a fourth gear 406, and a sixth gear 408 are rotatably connected to the upper surface of the processing table 1. A fifth gear 407 is fixedly connected to the upper surface of the fourth gear 406. A rack 410 is meshed on the outer sides of both the fifth gear 407 and the sixth gear 408. The rack 410 is fixedly connected to one side of the moving mold 411. The fixed mold 414 is fixedly connected to the upper surface of the processing table 1. The first gear 401 and the second gear 402 mesh with each other. A second gear 403 is fixedly connected to the upper surface of the second gear 402. The second gear 402 and the third gear 404... The gears mesh with each other. A third gear 405 is fixedly connected to the upper surface of the third gear 404. The fourth gear 406 meshes with the second gear 403 and the third gear 405 respectively. Through the continuous rotation of the second gear 402 and the third gear 404, the second gear 402 and the third gear 404 drive the fourth gear 406 to reciprocate through the second gear 403 and the third gear 405. The rack 410 is slidably connected to the upper surface of the processing table 1 via a fixed post 409. Slide rails 412 are fixedly connected to both sides of the upper surface of the processing table 1. The moving mold 411 is slidably connected to the surface of the slide rails 412. A limiting block 413 is fixedly connected to one end of the slide rails 412 to limit the sliding trajectory of the moving mold 411. This invention, through its designed... The drive mechanism 4, while driving the conveying mechanism 2 and the clamping mechanism 3 via the drive motor 201 to transport the plastic bottles before blow molding, also drives the second gear 402 and the third gear 404 to rotate via the first gear 401. Since the second gear 402 and the third gear 404 mesh with each other, the third gear 404 and the second gear 402 rotate in opposite directions. The second toothed column 403 and the third toothed column 405, fixedly mounted on the upper surfaces of the second gear 402 and the third gear 404, mesh with the fourth gear 406, thereby driving the fourth gear 406 to reciprocate. Since the fourth gear 406 and the fifth gear 407 are on the same shaft, the reciprocating rotation of the fourth gear 406 simultaneously drives the fifth gear... 407 rotates synchronously, and the interaction between the fifth gear 407 and the sixth gear 408 causes the two racks 410 on both sides to slide back and forth in the horizontal direction, ultimately driving the moving mold 411 to slide back and forth on the surface of the processing table 1. When the moving mold 411 slides towards the fixed mold 414, the fixed mold 414 and the moving mold 411 fit together to form a sealed space. After the blow molding tube 503 of the blow molding mechanism 5 is inserted into the plastic bottle mouth 305 for blow molding, the fixed mold 414 and the moving mold 411 rapidly cool the plastic bottle to complete the processing. During the rotation of the conveying mechanism 2, the moving mold 411 moves away from the fixed mold 414, opening up the internal space of the mold, and then the material is discharged through the discharge mechanism 6.The next plastic bottle, before blow molding, is then sent between the fixed mold 414 and the mold for the next blow molding process. This is achieved through the drive mechanism 4, which links the conveying mechanism 2 and the mold, ensuring precise synchronization. This avoids the deviations that easily occur during mold opening and closing and bottle delivery in traditional methods, effectively improving processing success rate, production efficiency, and product quality.
[0021] Example 4: The blow molding mechanism 5 includes a blow molding tube 503. A fixing frame 501 is fixedly connected to one side of the upper surface of the processing table 1. The blow molding tube 503 is movably connected to the side surface of the fixing frame 501. A first push rod 502 is fixedly connected to the side surface of the fixing frame 501. The blow molding tube 503 is fixedly connected to the telescopic end of the first push rod 502. A sealing cap 504 is fixedly connected to the upper end of the blow molding tube 503. The discharge mechanism 6 is installed on the lower surface of the processing table 1. The discharge mechanism 6 includes a cover 601 and a second push rod 604. The cover 601 is hinged to the lower surface of the processing table 1. The lower surface of the cover 601 is rotatably connected to the telescopic end of the second push rod 604 via a first rotating block 602. The fixed end of the second push rod 604 is rotatably connected to the lower surface of the processing table 1 via a second rotating block 603. This invention, through the blow molding mechanism 5 and the clamping mechanism 3, allows for the processing of plastic bottles before blow molding. When the conveying mechanism 2 conveys the plastic bottle, it is placed inside the clamping mechanism 3. The clamping blocks 304 are pressed towards the middle by the elastic components 303 on both sides of the clamping mechanism 3. The clamping blocks 304 on both sides clamp and fix the plastic bottle. When the plastic bottle rotates to the top of the mold, the first push rod 502 of the blow molding mechanism 5 pushes the blow molding head downward. After the blow molding head enters the plastic bottle, the sealing cap 504 fixedly connected to the upper end of the blow molding head covers the mouth of the plastic bottle to complete the sealing of the plastic bottle. Then the first push rod 502 continues to extend, pressing the blow molding head and the plastic bottle downward until the plastic bottle leaves the clamping mechanism 3 and is completely inserted between the fixed mold 414 and the moving mold 411. The blow molding head causes the plastic bottle to expand and form. Through clamping and fixing and working in coordination with the blow molding mechanism 5, the plastic bottle is accurately sent into the mold and the sealing blow molding is completed, ensuring molding accuracy and processing stability.
[0022] In use, the drive motor 201 starts, and the first rotating shaft 202 at its output end begins to rotate. The first rotating shaft 202 drives the connecting rod 203 in the conveying mechanism 2 to rotate, and the clamping mechanism 3 at the outer end of the connecting rod 203 moves accordingly, placing the plastic bottle before blow molding into the inner side of the clamping mechanism 3. The elastic components 303 on both sides of the clamping mechanism 3 cause the clamping block 304 to press towards the middle, thereby firmly clamping and fixing the plastic bottle. As the connecting rod 203 rotates, the clamping mechanism 3 holding the plastic bottle rotates to above the mold. At the same time, the first gear 401 of the drive mechanism 4 rotates and meshes with the second gear 402, driving the second gear... When wheel 402 rotates, the second gear 402 and the third gear 404 mesh with each other, causing the third gear 404 to rotate in the opposite direction. The second tooth 403 and the third tooth 405 on the upper surfaces of the second gear 402 and the third gear 404 mesh with the fourth gear 406, driving the fourth gear 406 to reciprocate. The fourth gear 406 drives the coaxial fifth gear 407 to reciprocate. The fifth gear 407 interacts with the sixth gear 408, causing the racks 410 on both sides to slide horizontally back and forth, thereby driving the moving mold 411 to slide back and forth on the surface of the processing table 1. When the unblowed plastic bottle is conveyed to the moving mold 411, it moves towards... When the tube slides into the fixed mold 414 and fits against it, a sealed space is formed. Simultaneously, the first push rod 502 of the blow molding mechanism 5 extends, pressing the blow molding tube 503 downwards. The blow molding tube 503 enters the plastic bottle, and its upper sealing cap 504 covers the bottle opening to complete the seal. The first push rod 502 continues to extend, pressing the blow molding tube 503 and the plastic bottle downwards until the plastic bottle leaves the clamping mechanism 3 and is fully inserted between the fixed mold 414 and the moving mold 411. The blow molding tube 503 causes the plastic bottle to expand and form. Subsequently, the fixed mold 414 and the moving mold 411 rapidly cool the plastic bottle, completing the processing. During one revolution of the conveying mechanism 2, the moving mold 411 moves away from the fixed mold 414, the internal space of the mold opens, the second push rod 604 in the discharge mechanism 6 extends, and drives the stop cover 601 to rotate through the first rotating block 602, pushing out the formed plastic bottle. Subsequently, the next plastic bottle before blow molding is sent between the fixed mold 414 and the moving mold 411 for the next blow molding process. This cycle continues. The drive mechanism 4 achieves precise linkage between the conveying mechanism 2 and the mold, avoiding the deviations that are easy to occur in the mold opening and closing and bottle feeding in the traditional method, effectively improving the processing success rate, production efficiency and product quality.
[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A plastic bottle production apparatus for food processing, characterized in that, include: The processing table (1) is a platform for supporting the conveying mechanism (2), the clamping mechanism (3), the driving mechanism (4), the blow molding mechanism (5), and the discharge mechanism (6); The conveying mechanism (2) includes a first rotating shaft (202) and a connecting rod (203), wherein the connecting rod (203) is rotatably connected to the upper surface of the processing table (1) via the first rotating shaft (202); The driving mechanism (4) includes a moving mold (411) and a fixed mold (414). A first gear (401) is fixedly connected to the side surface of the first rotating shaft (202). A second gear (402), a third gear (404), a fourth gear (406) and a sixth gear (408) are rotatably connected to the upper surface of the processing table (1). A fifth gear (407) is fixedly connected to the upper surface of the fourth gear (406). A rack (410) is meshed on the outer side of both the fifth gear (407) and the sixth gear (408). The rack (410) is fixedly connected to one side of the moving mold (411). The fixed mold (414) is fixedly connected to the upper surface of the processing table (1). The blow molding mechanism (5) includes a blow molding tube (503), and a fixed frame (501) is fixedly connected to one side of the upper surface of the processing table (1). The blow molding tube (503) is movably connected to the side surface of the fixed frame (501).
2. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, A drive motor (201) is fixedly connected to one side of the upper surface of the processing table (1), and the first rotating shaft (202) is connected to the output end of the drive motor (201).
3. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, The clamping mechanism (3) is installed on the outer end of the connecting rod (203). The clamping mechanism (3) includes a clamping block (304), and a fixing block (301) is fixedly connected to the outer end of the connecting rod (203).
4. The apparatus for producing plastic bottles for food processing according to claim 3, characterized in that, The clamping block (304) is movably connected to both sides of the surface of the fixing block (301), and a plastic bottle mouth (305) is provided on the inner side of the clamping block (304).
5. The plastic bottle production apparatus for food processing according to claim 4, characterized in that, The outer surface of the fixing block (301) is fixedly connected to the fixing plate (302), and the clamping block (304) is movably connected to the inner side of the fixing plate (302) through the elastic component (303).
6. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, The first gear (401) and the second gear (402) mesh with each other. The upper surface of the second gear (402) is fixedly connected with a second tooth column (403). The second gear (402) and the third gear (404) mesh with each other. The upper surface of the third gear (404) is fixedly connected with a third tooth column (405).
7. The apparatus for producing plastic bottles for food processing according to claim 6, characterized in that, The fourth gear (406) meshes with the second gear (403) and the third gear (405) respectively. Through the continuous rotation of the second gear (402) and the third gear (404), the second gear (402) and the third gear (404) drive the fourth gear (406) to reciprocate through the second gear (403) and the third gear (405).
8. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, The rack (410) is slidably connected to the upper surface of the processing table (1) via a fixed column (409). Slide rails (412) are fixedly connected to both sides of the upper surface of the processing table (1). The moving mold (411) is slidably connected to the surface of the slide rail (412). A limiting block (413) is fixedly connected to one end of the slide rail (412) to limit the sliding trajectory of the moving mold (411).
9. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, The side surface of the fixing frame (501) is fixedly connected to a first push rod (502), the blow molding tube (503) is fixedly connected to the telescopic end of the first push rod (502), and the upper end of the blow molding tube (503) is fixedly connected to a sealing cap (504).
10. The apparatus for producing plastic bottles for food processing according to claim 1, characterized in that, The discharge mechanism (6) is installed on the lower surface of the processing table (1). The discharge mechanism (6) includes a cover (601) and a second push rod (604). The cover (601) is hinged to the lower surface of the processing table (1). The lower surface of the cover (601) is rotatably connected to the telescopic end of the second push rod (604) through a first rotating block (602). The fixed end of the second push rod (604) is rotatably connected to the lower surface of the processing table (1) through a second rotating block (603).