A plastic container production plastic particle uniform feeding structure

Abstract

The utility model discloses a plastic granule even feeding structure of plastic container production, including feeding main part, and the feeding main part is including storage box, and the storage box is equipped with storage cavity and the discharge gate, the discharge gate is connected with the jiaolong pipe, and the discharge gate place rotationally established has the discharge roll, the discharge roll four -around outer wall is fixed with the flap frame, and the axle center is fixed with the pivot, wherein the jiaolong pipe inside is equipped with the discharge mechanism, the one end of jiaolong pipe is fixed with the transmission frame, and the one side of transmission frame is fixed with the motor, and the output of motor is connected with the transmission belt, the top of transmission belt is connected with the transmission wheel, and the axle center of transmission wheel is fixed in the pivot one end the utility model discloses through the discharge roll drive flap frame dispersion granule, and cooperate jiaolong pipe discharge mechanism forms double even material system, realizes continuous even feeding, adopts single motor linkage drive, and the structure simplifies and is efficient, this design significantly improves the feeding evenness, ensures the blow molding type blank quality, reduces the oil drum defect rate.

Description

Technical Field

[0001] This utility model relates to the field of mold technology for producing edible oil drums, specifically a uniform feeding structure for plastic granules in the production of plastic containers. Background Technology

[0002] Edible oil, also known as cooking oil, refers to animal or vegetable fats used in food production. It is liquid at room temperature. Currently, edible oil drums are important containers for ensuring the quality of oil and extending its shelf life. Their material selection, structural design, and performance testing must strictly adhere to food safety standards. Common packaging drums are mostly made of PET material. The production of these edible oil packaging drums mainly adopts the extrusion method, using screw extruders and blow molding molds. Their structure, materials, and process design must meet the high sealing, oil resistance, and hygiene requirements of food containers.

[0003] Existing edible oil packaging plastic containers are mainly produced using extrusion blow molding technology. First, plastic granules are fed into the hopper of a screw extruder and melted by heating to form a tubular preform. The preform then hangs between two halves of the mold. After the two molds are closed, compressed air is injected through a blowpipe at the top, causing the preform to expand and fit against the mold cavity wall to form the barrel body. After cooling and solidifying the mold with water, the mold is opened, and the tail material and flash are removed to obtain a complete oil barrel.

[0004] The aforementioned screw extruders primarily feed plastic granules into the extruder hopper manually or via conveyor belt. However, neither manual feeding nor conveyor feeding can guarantee uniform material feeding, leading to problems such as clogging of the feed inlet or uneven melting levels between granules after feeding, thus affecting production quality. Therefore, we propose a uniform feeding structure for plastic granules in plastic container production. Utility Model Content

[0005] In view of the problem of inlet blockage in existing methods of manually pouring plastic granules and feeding through conveying mechanisms, this utility model provides a plastic container production structure that ensures smooth and uniform feeding of plastic granules without blockage at the outlet during the feeding process.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A uniform feeding structure for plastic granules in plastic container production includes a feeding body, which includes a storage box with a storage cavity inside and a discharge port at the bottom. A auger tube is fixed and connected to the end of the discharge port, and a discharge roller is rotatably mounted at the discharge port. A flap frame is fixed to the outer wall of the discharge roller, and a rotating shaft is fixed to its center. A discharge mechanism is provided inside the auger tube. A transmission frame is fixed to one end of the auger tube, and a motor is fixed to one side of the transmission frame. A transmission belt is connected to the output end of the motor. A transmission wheel is connected to the top of the transmission belt, and the shaft of the transmission wheel is fixed to one end of the rotating shaft.

[0008] Furthermore, the bottom of the storage box is fixed to one side of the top surface of the auger tube, and the storage chamber is evenly distributed along the inner wall of the storage box. In use, plastic granules are simply poured into the storage chamber at once. Under gravity, the granules fall naturally to the discharge port, where the discharge roller drives the rotating flapper frame to achieve even distribution. Simultaneously, the discharge mechanism inside the auger tube ensures continuous and stable granule transport. This improvement integrates the storage box and the auger tube into a single structure, simplifying the installation process and reducing equipment maintenance difficulty. More importantly, by optimizing the even distribution design of the storage chamber, it effectively avoids localized accumulation or bridging of granules during transport, ensuring that the plastic granules maintain a uniform flow throughout the entire feeding process.

[0009] Furthermore, one end of the auger tube is fixedly connected to the transmission frame. During use, the motor drives the transmission wheel via a transmission belt to rotate the shaft. Due to the rigid connection design between the auger tube and the transmission frame, it is ensured that there will be no deviation or slippage during power transmission, allowing the flip-plate frame and the material discharge mechanism to maintain synchronous and stable operation.

[0010] Furthermore, the transmission wheel is connected to one end of the motor shaft via a transmission belt, and the motor is fixedly connected to one side of the transmission frame. During operation, the motor drives the transmission wheel to rotate via the transmission belt. This direct-drive transmission structure not only ensures high efficiency and synchronization accuracy of power transmission, but also effectively suppresses vibration and displacement during equipment operation through the integrated fixed design of the motor and transmission frame. This allows the tilting frame and the discharge mechanism to maintain precise speed coordination, reducing maintenance costs. Furthermore, by eliminating power loss in intermediate transmission links, the equipment operates more energy-efficiently.

[0011] Furthermore, the flapper frame is arranged in a cross shape at equal intervals along the outer wall of the discharge roller. During use, the motor drives the rotating shaft to rotate the discharge roller at a uniform speed. The cross-shaped flapper frame creates a regular material-pulling action during rotation, which can effectively disperse the accumulation of plastic particles and prevent the discharge port from clogging. It can also ensure that the material is evenly dispersed and falls into the auger tube. The symmetrical layout of the cross-shaped flapper frame makes the material more evenly stressed, which avoids the uneven wear problem caused by traditional one-sided material pulling and significantly improves the uniformity and continuity of material conveying.

[0012] Furthermore, the discharge mechanism includes a conveying pipe cavity, with a discharge pipe at the bottom of one end of the conveying pipe cavity and a conveying shaft at its center; one end of the conveying shaft is connected to a motor, and a screw frame is fixed to the outer wall around it. In use, the motor drives the conveying shaft to rotate the screw frame, and the plastic granules are evenly propelled by the screw frame in the conveying pipe cavity, and finally stably output through the discharge pipe. The screw conveyor ensures the stability of the discharge speed and prevents the accumulation and blockage of materials in the pipe cavity, thereby improving the energy transfer efficiency and enabling the entire feeding system to maintain a highly efficient and stable working state during long-term operation.

[0013] Furthermore, the spiral frame is arranged in an equidistant spiral pattern along the outer wall of the conveying shaft. In use, the motor drives the conveying shaft to rotate the equidistant spiral frame, and the plastic granules are continuously and stably propelled within the conveying tube by the evenly distributed spiral frame.

[0014] How to use this utility model:

[0015] In operation, raw materials are first poured directly into the storage chamber in large quantities, filling it with plastic granules. Then, a motor drives the discharge mechanism to rotate, simultaneously rotating a transmission belt. The belt drives a transmission wheel, which in turn drives a fixed shaft to rotate within the discharge port. This shaft rotation drives the discharge roller to rotate synchronously, which in turn rotates the surrounding flip-plate frames. The plastic granules are then evenly distributed into the conveying chamber within the auger tube by the flipping of the flip-plate frames. The discharge mechanism then transports the plastic granules from the auger tube to the hopper of the factory extruder. Furthermore, this structure can be directly integrated into the feeding end of existing extrusion blow molding equipment without replacing the main equipment, significantly reducing production line upgrade costs.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. This utility model uses a rotating discharge roller to drive the flipping frame to continuously rotate, forcibly dispersing the particle accumulation in the storage chamber. Combined with the discharge mechanism in the auger tube to regulate the particle flow rate, it forms a dual material uniformity mechanism combining flipping and spiral conveying, ensuring the continuity and uniformity of particle conveying. The motor links the flipping frame and the discharge mechanism through a transmission belt, realizing a single power source driving a dual-function module, simplifying the structure and improving the energy efficiency ratio. This solution improves the wall thickness consistency of the blow-molded preform and reduces the defect rate such as poor sealing of the oil drum by uniform feeding.

[0018] 2. This utility model achieves efficient and uniform conveying of plastic granules by optimizing the integrated connection between the storage box and the auger tube, the rigid transmission structure, the cross-shaped flip frame, and the equidistant spiral discharge mechanism. The uniform distribution of the storage chamber avoids material accumulation, the rigid connection ensures stable power transmission, the cross-shaped flip frame evenly disperses the material, and the equidistant spiral frame ensures continuous and stable discharge. The overall structure significantly improves the uniformity and stability of feeding, reduces the risk of blockage, reduces energy consumption and maintenance costs, and makes the entire system more efficient and reliable, effectively improving the production quality and efficiency of edible oil packaging containers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model.

[0020] Figure 2 This is a side view of the internal structure of the storage box of this utility model.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the discharge roller of this utility model.

[0022] Figure 4 This is a side view of the internal structure of the material discharge mechanism of this utility model.

[0023] In the diagram: 1-Feeding body, 101-Storage box, 102-Storage cavity, 103-Discharge port, 104-Discharge roller, 105-Flipping frame, 106-Rotating shaft, 107-Dragon tube, 108-Transmission frame, 109-Motor, 110-Transmission belt, 111-Transmission wheel, 2-Discharge mechanism, 201-Conveying pipe cavity, 202-Discharge pipe, 203-Conveying shaft, 204-Spiral frame. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1: A uniform feeding structure for plastic granules in plastic container production includes a feeding body 1, which includes a storage box 101. The storage box 101 has a storage cavity 102 inside and a discharge port 103 at the bottom. The discharge port 103 is fixed and connected to a auger tube 107 at its end, and a discharge roller 104 is rotatably installed at the discharge port. A flip-plate frame 105 is fixed around the outer wall of the discharge roller 104, and a rotating shaft 106 is fixed at its center. The auger tube 107 has a discharge mechanism 2 inside. A transmission frame 108 is fixed at one end of the auger tube 107, and a motor 109 is fixed on one side of the transmission frame 108. The output end of the motor 109 is connected to a transmission belt 110. A transmission wheel 111 is connected to the top end of the transmission belt 110, and the axis of the transmission wheel 111 is fixed to one end of the rotating shaft 106.

[0026] In operation, the raw materials are first poured directly into the storage chamber 102 in large quantities, filling it with plastic granules. Then, the motor 109 drives the discharge mechanism 2 to rotate, simultaneously rotating the transmission belt 110. The transmission belt 110 drives the transmission wheel 111 synchronously, which in turn drives the fixed rotating shaft 106 to rotate within the discharge port 103. The rotating shaft 106 then drives the discharge roller 104 to rotate synchronously. The rotating discharge roller 104 then drives the surrounding flip-plate frames 105 to flip synchronously. The plastic granules are then evenly distributed into the conveying tube 201 within the auger tube 107 by the flipping of the flip-plate frames 105. The discharge mechanism 2 then transports and discharges the plastic granules from the auger tube 107 into the hopper of the factory extruder. Furthermore, this structure can be directly integrated into the feeding end of existing extrusion blow molding equipment without replacing the main equipment, significantly reducing production line upgrade costs.

[0027] Example 2: Unlike Example 1, the bottom of the storage box 101 is fixed to one side of the top surface of the auger tube 107, and the storage cavity 102 is evenly distributed along the inner wall of the storage box 101. In use, plastic granules are simply poured into the storage cavity 102 at once. The granules fall naturally to the discharge port 103 under gravity, and the discharge roller 104 drives the flip frame 105 to rotate, achieving even distribution. Simultaneously, the discharge mechanism 2 inside the auger tube 107 ensures continuous and stable granule transport. This improvement integrates the storage box 101 and the auger tube 107, simplifying the installation process and reducing equipment maintenance difficulty. More importantly, by optimizing the even distribution design of the storage cavity 102, it effectively avoids local accumulation or bridging of granules during transport, ensuring that the plastic granules maintain uniform flow throughout the entire feeding process.

[0028] One end of the auger tube 107 is fixedly connected to the transmission frame 108. In use, the motor 109 drives the transmission wheel 111 through the transmission belt 110 to rotate the shaft 106. Due to the rigid connection design between the auger tube 107 and the transmission frame 108, it is ensured that there will be no deviation or slippage during the power transmission process, so that the flip-plate frame 105 and the discharge mechanism 2 can maintain synchronous and stable operation.

[0029] The discharge mechanism 2 includes a conveying pipe cavity 201, with a discharge pipe 202 at one end of the bottom of the conveying pipe cavity 201, and a conveying shaft 203 is mounted on the central axis. One end of the conveying shaft 203 is connected to a motor 109, and a screw frame 204 is fixed to its outer wall. In use, the motor 109 drives the conveying shaft 203 to rotate the screw frame 204. The plastic granules are evenly propelled by the screw frame 204 within the conveying pipe cavity 201 and finally stably output through the discharge pipe 202. The screw conveyor ensures the stability of the discharge speed and prevents material accumulation and blockage within the pipe cavity, thereby improving energy transfer efficiency and enabling the entire feeding system to maintain a highly efficient and stable working state during long-term operation.

[0030] Example 3: Unlike Example 2, the transmission wheel 111 is connected to one end of the motor 109 shaft via a transmission belt 110, and the motor 109 is fixedly connected to one side of the transmission frame 108. In use, the motor 109 drives the transmission wheel 111 to rotate via the transmission belt 110. This direct-drive transmission structure not only ensures high efficiency and synchronization accuracy of power transmission, but also effectively suppresses vibration and displacement during equipment operation through the integrated fixed design of the motor 109 and the transmission frame 108. This allows the flip-plate frame 105 and the discharge mechanism 2 to maintain precise speed coordination, reducing maintenance costs. Furthermore, by eliminating power loss in intermediate transmission links, the equipment operates more energy-efficiently.

[0031] The flip-plate frame 105 is arranged in a cross shape at equal intervals along the outer wall of the discharge roller 104. In use, the motor 109 drives the rotating shaft 106 to rotate the discharge roller 104 at a uniform speed. The cross-shaped and equally spaced flip-plate frame 105 forms a regular material-pulling action during rotation, which can effectively disperse the accumulation of plastic particles and prevent the discharge port from being blocked. It can also ensure that the material is evenly dispersed and falls into the auger tube. The symmetrical layout of the cross-shaped flip-plate frame 105 makes the material more evenly stressed, which not only avoids the problem of uneven wear caused by traditional one-sided material pulling, but also significantly improves the uniformity and continuity of material conveying.

[0032] The spiral frame 204 is arranged in an equidistant spiral along the outer wall of the conveying shaft 203. In use, the motor 109 drives the conveying shaft 203 to rotate the equidistant spiral frame 204, and the plastic particles are continuously and stably propelled in the conveying tube 201 by the evenly distributed spiral frame 204.

[0033] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A uniform feeding structure for plastic granules in the production of plastic containers, comprising a feeding body (1), characterized in that: The feeding body (1) includes a storage box (101), which has a storage cavity (102) inside and a discharge port (103) at the bottom. The discharge port (103) is fixed and connected to a auger tube (107) at the end, and a discharge roller (104) is rotatably installed at the discharge port. A flip-plate frame (105) is fixed around the outer wall of the discharge roller (104), and a rotating shaft (106) is fixed on the axis. The auger tube (107) is provided with a discharge mechanism (2). A transmission frame (108) is fixed at one end of the auger tube (107), and a motor (109) is fixed on one side of the transmission frame (108). The output end of the motor (109) is connected to a transmission belt (110). A transmission wheel (111) is connected to the top of the transmission belt (110), and the axis of the transmission wheel (111) is fixed to one end of the rotating shaft (106).

2. The uniform feeding structure for plastic granules in the production of plastic containers as described in claim 1, characterized in that: The bottom end of the storage box (101) is fixed to one side of the top surface of the auger tube (107), and the storage cavity (102) is evenly opened along the inner wall of the storage box (101).

3. The uniform feeding structure for plastic granules in the production of plastic containers as described in claim 1, characterized in that: One end of the auger tube (107) is fixedly connected to the transmission frame (108).

4. The uniform feeding structure for plastic granules in the production of plastic containers as described in claim 1, characterized in that: The transmission wheel (111) is connected to one end of the motor (109) via a transmission belt (110), and the motor (109) is fixedly connected to one side of the transmission frame (108).

5. The uniform feeding structure for plastic granules in the production of plastic containers as described in claim 1, characterized in that: The flip-plate frame (105) is arranged in a cross shape at equal intervals along the outer wall of the discharge roller (104).

6. The uniform feeding structure for plastic granules in the production of plastic containers as described in claim 1, characterized in that: The discharge mechanism (2) includes a conveying pipe cavity (201), a discharge pipe (202) is provided at the bottom of one end of the conveying pipe cavity (201), and a conveying shaft (203) is provided at the center; one end of the conveying shaft (203) is connected to a motor (109), and a screw frame (204) is fixed on the outer wall around it.

7. The uniform feeding structure for producing plastic granules in plastic container manufacturing as described in claim 6, characterized in that: The spiral frame (204) is arranged in a spiral pattern at equal intervals around the outer wall of the conveying shaft (203).

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