A raw material processing device for plastic bottle production
Patent Information
- Application Number
- CN202522610525.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
AI Technical Summary
In the existing plastic bottle production process, the mixing equipment does not mix granular raw materials with small density differences sufficiently, which easily leads to local accumulation and poor mixing uniformity.
The system employs a drive rod to drive the stirring blades and a triangular top wheel structure. Through the spiral motion of the stirring blades and the periodic pushing of the triangular top wheel, combined with the telescopic motion of the rectangular tube, the raw materials are squeezed and loosened, thereby improving the uniformity of mixing.
It effectively breaks up particle agglomeration, improves the mixing uniformity of raw materials, ensures the quality of subsequent processing, and is suitable for plastic bottle production.
Smart Images

Figure CN224928260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of raw material processing equipment, specifically a raw material processing equipment for the production of plastic bottles. Background Technology
[0002] Plastic bottles are containers manufactured using hollow molding methods. The main materials include PET, and they are widely used in beverages, food, pharmaceuticals, and many other fields. They not only possess excellent sealing and portability but can also enhance product value through design. In the plastic bottle production process, the pretreatment of raw materials is crucial to the final product quality. This involves steps such as storing raw materials, adding color masterbatches or additives, and continuously conveying them to molding equipment, such as injection molding machines and blow molding machines, for processing.
[0003] Most mixing equipment uses a single rotating blade structure, which results in poor uniformity of raw material mixing. This is especially true for granular raw materials with small density differences, which are prone to local accumulation and insufficient mixing. Therefore, it is necessary to propose a raw material processing device for plastic bottle production. Utility Model Content
[0004] The purpose of this invention is to provide a raw material processing device for the production of plastic bottles, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a raw material processing device for plastic bottle production, comprising a support block, wherein a collection tube is fixedly connected to one side of the outer wall of the support block via a U-shaped frame, a first rectangular tube is slidably connected to the upper outer wall of the collection tube, and a second rectangular tube is slidably connected to the lower outer wall of the collection tube. A drive rod is rotatably connected to the middle position of the inner walls on both sides of the collection tube. A stirring blade is fixedly connected to the outer wall of the drive rod in a symmetrical shape. The drive rod passes through the outside of the collection tube through a bearing and is fixedly connected to a triangular top wheel. The triangular top wheel abuts against the first rectangular tube and the second rectangular tube. Limiting grooves are formed through the outer walls on both sides of the collection tube relative to the positions of the first rectangular tube and the second rectangular tube. A slider is slidably connected to the inner wall of the limiting groove. The slider is fixedly connected to the first rectangular tube and the second rectangular tube.
[0006] Preferably, a tapered feeding pipe is fixedly connected to the lower surface of the second rectangular tube, and a threaded conveying pipe is fixedly connected to one side of the outer wall of the support block. The output end of the tapered feeding pipe is equipped with a valve and a connecting hose is fixedly connected to it. The connecting hose is fixedly connected to the threaded conveying pipe.
[0007] Preferably, a fixing block is fixedly connected to the upper surface of the first rectangular tube, the fixing block abuts against the collecting tube, and a feeding hole is provided in the middle of the collecting tube, the feeding hole being hinged to a sealing box door.
[0008] Preferably, the outer wall of one side of the collection tube has a hole and an observation window is fixedly connected to it.
[0009] Preferably, a drive motor is fixedly connected to one side of the outer wall of the support block, and the output end of the drive motor is fixedly connected to the drive rod through a coupling.
[0010] Preferably, a spring is fixedly connected to the inner wall of one end of the limiting groove, and the other end of the spring is fixedly connected to the slider.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When the sealed box door is opened, the material is poured into the collection pipe. The drive motor is started to drive the drive rod, the triangular top wheel, and the stirring blade to rotate. The stirring blade stirs the material in the collection pipe. The triangular top wheel pushes the first rectangular tube and the second rectangular tube to move outward, shaking the material. When the drive rod rotates, it directly stirs the raw material through the stirring blade. The triangular top wheel periodically pushes the first and second rectangular tubes to slide up and down, causing the internal space of the collection pipe to periodically expand and contract, producing a squeezing and loosening effect on the raw material. Combined with the spiral motion of the stirring blade, it can break up particle agglomeration and improve the mixing uniformity. Attached Figure Description
[0012] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a bottom view of the first rectangular tube structure of this utility model; Figure 5 This is a front view schematic diagram of the second rectangular tube structure of this utility model; Figure 6 For the present utility model Figure 3 Enlarged structural diagram of section A.
[0013] In the diagram: 1. Support block; 2. Collection pipe; 3. First rectangular tube; 4. Second rectangular tube; 5. Drive rod; 6. Stirring blade; 7. Triangular top wheel; 8. Slider; 9. Conical discharge pipe; 10. Connecting hose; 11. Fixing block; 12. Sealing box door; 13. Sealing ring; 14. Observation window; 15. Drive motor; 16. Spring. Detailed Implementation
[0014] Please see Figure 1-6 This utility model provides a technical solution: Example 1: A raw material processing device for plastic bottle production includes a support block 1. A collection tube 2 is fixedly connected to one side of the outer wall of the support block 1 via a U-shaped frame. A first rectangular tube 3 is slidably connected to the upper outer wall of the collection tube 2, and a second rectangular tube 4 is slidably connected to the lower outer wall of the collection tube 2. A drive rod 5 is rotatably connected to the middle position of the inner walls on both sides of the collection tube 2. A stirring blade 6 is fixedly connected to the outer wall of the drive rod 5 in a symmetrical shape. The drive rod 5 passes through the outside of the collection tube 2 through a bearing and is fixedly connected to a triangular top wheel 7. The triangular top wheel 7 abuts against the first rectangular tube 3 and the second rectangular tube 4. Limiting grooves are opened through the outer walls on both sides of the collection tube 2 relative to the positions of the first rectangular tube 3 and the second rectangular tube 4. A slider 8 is slidably connected to the inner wall of the limiting groove. The slider 8 is fixedly connected to the first rectangular tube 3 and the second rectangular tube 4. Sealing rings 13 are fixedly connected to the outer walls at both the upper and lower ends of the collection tube 2.
[0015] In use, the drive motor 15 is connected to an external drive source through the controller. The sealed box door 12 is opened, and the PE plastic granules 6 to be processed and the mixed granules containing different color masterbatches are poured into the collection tube 2 through the feed hole. Then the sealed box door 12 is closed. The sealing ring 13 can prevent the raw material from leaking from the gap between the collection tube 2 and the first rectangular tube 3 and the second rectangular tube 4. Start the drive motor 15, which drives the drive rod 5 to rotate. The stirring blade 6 on the drive rod 5 rotates synchronously, and performs spiral stirring on the PE plastic particles in the collection tube 2, so that the different color masterbatches and base particles are evenly mixed. At the same time, the triangular top wheel 7 at the end of the drive rod 5 rotates with the drive rod 5. Since the triangular top wheel 7 has a "triangular cam" structure, it will periodically push the first rectangular tube 3 and the connected slider 8 to slide upward, and push the second rectangular tube 4 and the connected slider 8 to slide downward. Then, under the limiting action of the spring 16 and the slider 8, the first rectangular tube 3 and the second rectangular tube 4 slide back to their original positions in opposite directions. The space at the upper and lower ends of the collection tube 2 periodically expands and contracts, which not only assists the raw materials to flow in the stirring, but also produces a "compression-loosening" effect on the raw materials, further improving the uniformity of mixing. After stirring, start the threaded conveying pipe and valve to make the spiral conveying rod inside the threaded conveying pipe rotate. The PE plastic particles that have been mixed evenly in the collection pipe 2 are stirred and fall from the second rectangular pipe 4 into the conical feeding pipe 9, and then enter the threaded conveying pipe through the connecting hose 10. Finally, they are continuously conveyed to the feed port of the plastic bottle injection molding machine for subsequent injection molding. The stirring status and remaining amount of the raw materials inside the collection tube 2 can be viewed in real time through the observation window 14, which makes it convenient to replenish the raw materials or adjust the stirring time in a timely manner.
[0016] Example 2: The technical solutions in this example that differ from Example 1 include; A tapered feeding pipe 9 is fixedly connected to the lower surface of the second rectangular tube 4. A threaded conveying pipe is fixedly connected to one side of the outer wall of the support block 1. The output end of the tapered feeding pipe 9 is equipped with a valve and a connecting hose 10 is fixedly connected to it. The connecting hose 10 is fixedly connected to the threaded conveying pipe, making it convenient to pour materials into the threaded conveying pipe using the connecting hose 10. A fixing block 11 is fixedly connected to the upper surface of the first rectangular tube 3. The fixing block 11 abuts against the collecting pipe 2. A feed hole is provided in the middle of the collecting pipe 2. The feed hole is hinged to a sealing box door 12, making it convenient to open the sealing box door 12 to pour materials. Material is poured into the collection pipe 2. One side of the outer wall of the collection pipe 2 has a hole and an observation window 14 is fixedly connected to it, so as to observe the material status inside the collection pipe 2. One side of the outer wall of the support block 1 is fixedly connected to the drive motor 15. The output end of the drive motor 15 is fixedly connected to the drive rod 5 through a coupling, so as to drive the drive rod 5 to rotate using the drive motor 15. One end of the inner wall of the limiting slide is fixedly connected to the spring 16. The other end of the spring 16 is fixedly connected to the slider 8, so as to push the slider 8 and the first rectangular tube 3 and the second rectangular tube 4 to reset using the spring 16.
Claims
1. A raw material processing device for plastic bottle production, comprising a support block (1), wherein a collection tube (2) is fixedly connected to one side of the outer wall of the support block (1) via a U-shaped frame, a first rectangular tube (3) is slidably connected to the upper outer wall of the collection tube (2), and a second rectangular tube (4) is slidably connected to the lower outer wall of the collection tube (2). Its features are, A drive rod (5) is rotatably connected to the middle position of the inner walls on both sides of the collection tube (2). A stirring blade (6) is fixedly connected to the outer wall of the drive rod (5) in a symmetrical manner. The drive rod (5) passes through the outside of the collection tube (2) through a bearing and is fixedly connected to a triangular top wheel (7). The triangular top wheel (7) abuts against the first rectangular tube (3) and the second rectangular tube (4). A limiting groove is opened through the outer walls on both sides of the collection tube (2) relative to the position of the first rectangular tube (3) and the second rectangular tube (4). A slider (8) is slidably connected to the inner wall of the limiting groove. The slider (8) is fixedly connected to the first rectangular tube (3) and the second rectangular tube (4). A sealing ring (13) is fixedly connected to the outer walls at both ends of the collection tube (2).
2. The raw material processing device for plastic bottle production according to claim 1, characterized in that: A tapered feeding pipe (9) is fixedly connected to the lower surface of the second rectangular tube (4), and a threaded conveying pipe is fixedly connected to one side of the outer wall of the support block (1). The output end of the tapered feeding pipe (9) is provided with a valve and a connecting hose (10) is fixedly connected to it. The connecting hose (10) is fixedly connected to the threaded conveying pipe.
3. The raw material processing device for plastic bottle production according to claim 1, characterized in that: A fixing block (11) is fixedly connected to the upper surface of the first rectangular tube (3). The fixing block (11) abuts against the collecting tube (2). A feed hole is provided in the middle of the collecting tube (2). The feed hole is hinged to a sealing box door (12).
4. The raw material processing device for plastic bottle production according to claim 1, characterized in that: The outer wall of one side of the collection tube (2) has a hole and an observation window (14) is fixedly connected to it.
5. A raw material processing apparatus for plastic bottle production according to claim 1, characterized in that: A drive motor (15) is fixedly connected to one side of the outer wall of the support block (1), and the output end of the drive motor (15) is fixedly connected to the drive rod (5) through a coupling.
6. The raw material processing apparatus for plastic bottle production according to claim 1, characterized in that: A spring (16) is fixedly connected to the inner wall of one end of the limiting slide groove, and the other end of the spring (16) is fixedly connected to the slider (8).
