A material degradation granulator

Abstract

This utility model relates to a biodegradable material granulator, comprising a conveying mechanism and a granulation mechanism mounted on a frame-type support. A motor for driving the mechanism is located below the frame, and a transmission sprocket is provided at the power output end of the motor to pull the conveying mechanism. The conveying mechanism includes a double-eared seat mounted on the support, supporting a cylindrical hollow conveying tube. A rotatable conveying paddle is inserted inside the tube. One end of the conveying paddle is connected to the transmission sprocket, and the other end is fitted with a discharge cover. The discharge cover has multiple through holes on its disc surface. Material is discharged by the conveying and extrusion process of the conveying paddle. A feed inlet for feeding material is connected above the conveying tube. Through its reasonable structural design and working principle, it has significant beneficial effects in terms of granulation efficiency, product quality, and operation and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of granulation device technology, and specifically relates to a granulator for degradable materials. Background Technology

[0002] Degradable materials, such as biodegradable plastics and polymers, are increasingly used in packaging, agriculture, and medical fields due to their environmentally friendly and biodegradable properties. However, granulation remains one of the core technological challenges in the production of degradable materials. Especially in today's pursuit of high efficiency and high-quality products, ensuring uniform particle morphology and continuous, stable production has become a critical challenge that the industry urgently needs to address.

[0003] The stability of the granulation process directly determines the quality and application performance of the final product. Degradable materials are often sensitive to physicochemical properties, leading to problems such as uneven particle size, irregular shape, and poor batch consistency during processing. Specifically, during the melt conveying stage, temperature or pressure fluctuations can cause "sharkskin" phenomena or melt fracture due to unstable melt flow, resulting in rough and easily broken particle surfaces. This not only affects the mechanical strength and degradation performance of the product but may also cause subsequent processing problems, such as uneven packing voids during packaging or thickness variations during film blow molding. These problems severely restrict production efficiency and economics. Companies often incur increased costs due to frequent equipment adjustments, especially in automated high-speed production lines where downtime losses caused by instability are particularly significant. Therefore, the instability of degradable material granulation has become a common pain point in the industry, urgently requiring improvements in stability and reliability through process optimization and system upgrades. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a biodegradable material granulator, the specific technical solution of which is as follows:

[0005] This utility model provides a biodegradable material granulator, including a roller conveying mechanism and a granulation mechanism mounted on a frame-type support. A motor for driving is arranged below the roller conveying mechanism, and a transmission sprocket is provided at the power output end of the motor to drive the roller conveying mechanism. The roller conveying mechanism includes a double-ear seat mounted on the support, on which a cylindrical hollow roller conveying tube is supported. A rotatable roller conveying paddle is inserted inside the tube. One end of the roller conveying paddle is connected to the transmission sprocket, and the other end is fitted with a discharge cover. The discharge cover has multiple through holes on its disc surface. The material is conveyed and extruded by the roller conveying paddle to achieve discharge. A feed port for feeding is provided above the roller conveying tube.

[0006] As a preferred technical solution of this utility model, the granulation mechanism includes a knife holder rigidly connected to the discharge cover, which is provided with a cutting knife and a through hole, and is passively cut as it is extruded by the roller conveyor.

[0007] As a preferred technical solution of this utility model, the rear end of the cutting blade is provided with a power source to drive its rotation, and the material is actively cut by being squeezed out by the roller feed paddle.

[0008] As a preferred technical solution of this utility model, the feed inlet has an inverted bucket-shaped structure, with an annular baffle for preventing material leakage around its upper edge, and an electric heating wire attached to the bucket-shaped bevel of the feed inlet for heating.

[0009] As a preferred technical solution of this utility model, a freewheel is provided in the middle section of the transmission sprocket, which is inserted into the bracket and rotates with the transmission sprocket to prevent misalignment during transmission.

[0010] As a preferred technical solution of this utility model, both ends of the roller conveyor tube are equipped with double lugs to reduce the vibration transmission of the roller conveyor paddle.

[0011] As a preferred technical solution of this utility model, the bottom four corners of the bracket are provided with foot pads, and a rubber layer for reducing vibration is attached between the foot pads and the ground.

[0012] The beneficial effects of this utility model are:

[0013] High-efficiency drive and power transmission: This biodegradable material granulator is driven by a motor, and the transmission sprocket at the motor's power output end effectively pulls the conveying mechanism. This design makes power transmission direct and efficient. The use of the transmission sprocket ensures the stability of power transmission, reduces power loss during transmission, and fully transmits the motor's power to the conveying mechanism, providing continuous and stable power support for the granulation process and ensuring the efficient operation of the entire granulation process.

[0014] Material conveying and extrusion discharge principle: A rotatable conveying paddle is inserted into a hollow conveying tube in the conveying mechanism. One end of the paddle is connected to a drive sprocket, and the paddle starts to rotate under the drive of a motor. When the biodegradable material is fed into the hollow conveying tube from the feed inlet, the rotation of the paddle effectively conveys and extrudes the material. Under the action of the paddle, the material moves towards the discharge cover. The discharge cover has multiple through holes on its surface, and the material is discharged through these through holes under the conveying and extrusion of the paddle. This conveying and extrusion discharge method ensures that the material is uniformly extruded from the through holes, guaranteeing the uniformity of granulation and resulting in more consistent particle size of the produced biodegradable material, thus improving product quality.

[0015] The granulator features a rational structural design that facilitates operation and maintenance: A frame-type support structure houses the conveying and granulation mechanisms, resulting in a clear and logical design. Each component, such as the double-ear seat, hollow conveyor tube, conveyor paddle, and discharge cover, has a clearly defined installation location and connection method, simplifying assembly and disassembly. This not only benefits operation during production but also allows for convenient inspection, repair, and replacement of components when maintenance is required, reducing maintenance and time costs and improving production continuity and stability.

[0016] In summary, this biodegradable material granulator, through its reasonable structural design and working principle, has significant beneficial effects in terms of granulation efficiency, product quality, and operation and maintenance. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0018] Figure 2 This invention shows a schematic diagram of the combination of the rolling mechanism and the transmission sprocket.

[0019] Figure 3 This invention presents a schematic diagram showing the combination of the rolling conveying mechanism and the granulation mechanism.

[0020] Figure 4 This invention illustrates a structural diagram of the combination of a rolling feed paddle and a cutting blade.

[0021] Figure 5 This invention illustrates a schematic diagram of the combination of the discharge cover and the cutting blade.

[0022] The figure shows: 1. Support; 2. Motor; 3. Drive sprocket; 31. Idle wheel; 4. Roller conveyor; 41. Roller conveyor pipe; 42. Feed inlet; 421. Baffle; 43. Roller conveyor paddle; 44. Discharge cover; 45. Double ear seat; 5. Granulation mechanism; 51. Knife holder; 52. Cutting knife. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0024] Example 1

[0025] To address the technical problems in the background section, the following degradable material granulator is provided:

[0026] Combination Figure 1-3As shown, a biodegradable material granulator includes a conveying mechanism 4 and a granulation mechanism 5 mounted on a frame support 1. A motor 2 for driving is installed below the granulator. The power output end of the motor 2 is equipped with a transmission sprocket 3 to drive the conveying mechanism 4. The conveying mechanism 4 includes a double-ear seat 45 mounted on the support 1, on which a cylindrical hollow conveying tube 41 is supported. A rotatable conveying paddle 43 is inserted inside the tube. One end of the conveying paddle 43 is connected to the transmission sprocket 3, and the other end is fitted with a discharge cover 44. The surface of the discharge cover 44 is provided with multiple through holes. The material is conveyed and extruded by the conveying paddle 43 to achieve discharge. A feed inlet 42 for feeding is connected above the conveying tube 41.

[0027] Please refer to the instruction manual appendix. Figure 1-3 This embodiment provides a first embodiment of a biodegradable material granulator. In this embodiment, the biodegradable material granulator mainly consists of a conveying mechanism 4 and a granulation mechanism 5 supported by a frame-type support 1. A motor 2 for driving is arranged below the frame-type support 1, which is the power source for the operation of the entire granulator. A transmission sprocket 3 is provided at the power output end of the motor 2. The function of the transmission sprocket 3 is to transmit the power of the motor 2 to drive the conveying mechanism 4.

[0028] Specifically, the conveying mechanism 4 includes a double-eared seat 45 mounted on a bracket 1, which serves to support and fix the material. A cylindrical hollow conveying tube 41 is supported on the double-eared seat 45, providing a channel for material conveying. A rotatable conveying paddle 43 is inserted inside the hollow conveying tube 41. One end of the conveying paddle 43 is connected to a drive sprocket 3. When the motor 2 starts, the drive sprocket 3 drives the conveying paddle 43 to rotate. A discharge cover 44 is fitted onto the other end of the conveying paddle 43, and multiple through holes are arranged on the disc surface of the discharge cover 44.

[0029] Furthermore, during granulation, the degradable material is fed into the hollow roller conveyor 41 through the feed inlet 42 connected above the roller conveyor 41. As the motor 2 drives the roller conveyor 43 to rotate, the roller conveyor 43 conveys and compresses the fed degradable material. The material moves towards the discharge cover 44 under the push of the roller conveyor 43. Under the continuous conveying and compressing action of the roller conveyor 43, the material is extruded through multiple through holes on the discharge cover 44, and granulation is achieved in conjunction with the granulation mechanism 5.

[0030] Preferably, to ensure the stable rotation of the roller conveyor 43 and the effective conveying and extrusion of materials, the connections and fits between the components need to be precise. For example, the connection between the roller conveyor 43 and the drive sprocket 3 must be firm to ensure effective power transmission; the discharge cover 44 must fit tightly against the roller conveyor 43 to ensure that the material can be smoothly extruded from the through hole. Through this structural design and working principle, the entire granulator realizes the granulation process of degradable materials. From the input of materials to the output of granules, each link works closely together to form a complete granulation process.

[0031] Example 2

[0032] Combination Figure 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0033] In this embodiment, the granulation mechanism 5 includes a knife holder 51 rigidly connected to the discharge cover 44, in which a cutting knife 52 is inserted and attached to a through hole, and the material is passively cut as it is extruded by the roller conveyor 43.

[0034] The cutting blade 52 is equipped with a power source at its rear end to drive its rotation, and it actively cuts materials by being extruded by the roller feeder 43.

[0035] The feed inlet 42 has an inverted bucket-shaped structure, with an annular baffle 421 around its upper edge to prevent material leakage, and an electric heating wire attached to the bucket-shaped bevel of the feed inlet 42 for heating.

[0036] Please refer to the instruction manual appendix. Figure 1-5 This embodiment provides a second embodiment of the degradable material granulation mechanism 5 and the feed inlet 42. In this embodiment, the granulation mechanism 5 is mainly composed of a cutter holder 51 rigidly connected to the discharge cover 44. The cutter holder 51 plays the role of supporting the cutting blade 52 throughout the granulation process.

[0037] A cutting blade 52 is installed inside the blade holder 51, and the cutting blade 52 is attached to the through hole on the discharge cover 44. When the roller conveyor 43 compresses the material and the material is squeezed out from the through hole of the discharge cover 44, the cutting blade 52 can passively cut the material. This passive cutting method utilizes the thrust of the material extrusion, so that the cutting blade 52 can cut the material at the moment of extrusion, forming granular material.

[0038] Specifically, a power source is located at the rear end of the cutting blade 52, which drives the cutting blade 52 to rotate. When the roller feed paddle 43 extrudes the material, the cutting blade 52 actively rotates under the drive of the power source to cut the material. The active cutting method can more flexibly and precisely control the cutting frequency and force according to actual production needs, so as to adapt to the granulation requirements of different types and characteristics of degradable materials.

[0039] Furthermore, the feed inlet 42 adopts an inverted bucket shape, which facilitates the smooth entry of materials into the hollow conveyor tube 41. An annular baffle 421 is provided around the upper edge of the feed inlet 42. The annular baffle 421 can effectively prevent materials from leaking out from the edge of the feed inlet 42 during the feeding process, ensuring that all materials can enter the granulator for processing.

[0040] To better handle degradable materials, heating wires are attached to the hopper-shaped bevel of the feed inlet 42. When energized, the heating wires generate heat, which heats the material inside the feed inlet 42. The heated material exhibits better flowability and plasticity, facilitating subsequent conveying and extrusion operations by the roller conveyor 43, thus making the granulation process smoother. The entire granulator, through the two cutting methods of the granulation mechanism 5 and the special design and heating function of the feed inlet 42, forms a complete and efficient granulation process, capable of meeting the granulation needs of various degradable materials.

[0041] Example 3

[0042] Combination Figure 1-3 As shown, based on the above embodiments, this embodiment further provides the following:

[0043] In this embodiment, a freewheel 31 is provided in the middle section of the transmission sprocket 3. It is inserted into the bracket 1 and rotates with the transmission sprocket 3 to prevent misalignment during transmission.

[0044] Both ends of the roll tube 41 are equipped with double lugs 45 to reduce the vibration transmission of the roll paddle 43.

[0045] The bracket 1 has foot pads at its four bottom corners, and a rubber layer is attached between the bracket and the ground to reduce vibration.

[0046] Please refer to the instruction manual appendix. Figure 1-3 This embodiment provides a third embodiment of the structure of a granulator for degradable materials. In this embodiment, the granulator involves special design and arrangement of components such as the drive sprocket 3, the conveying pipe 41, and the support 1.

[0047] A freewheel 31 is installed in the middle section of the transmission sprocket 3, and the freewheel 31 is inserted into the bracket 1. When the transmission sprocket 3 is running, the freewheel 31 will rotate accordingly. The freewheel 31 plays a role in preventing misalignment of the transmission teeth. During the transmission process, if misalignment occurs between the chain and the sprocket, the freewheel 31 can adjust synchronously to a certain extent, ensuring the stability and accuracy of the transmission, so that the power can be continuously and smoothly transmitted from the motor 2 to the conveying mechanism 4.

[0048] Specifically, double-ear seats 45 are provided at both ends of the conveying tube 41. The double-ear seats 45 provide support and fixation, effectively reducing the vibration transmission generated by the conveying paddle 43 during rotation. When the conveying paddle 43 transports and compresses materials, it generates vibration. Without the support and cushioning of the double-ear seats 45, this vibration could affect the stability of the entire conveying mechanism 4 and even damage other components. The double-ear seats 45 limit the vibration of the conveying paddle 43 to a certain range, ensuring the smooth operation of the conveying mechanism 4.

[0049] Furthermore, foot pads are installed at the four corners of the bottom of the support frame 1, with a rubber layer attached between the foot pads and the ground. The rubber layer has excellent shock absorption properties, absorbing and buffering the vibrations generated by the granulator's operation, reducing the impact of vibrations on the ground, and also reducing the feedback vibration from the ground to the granulator, further improving the overall stability and operational reliability of the granulator. Through the installation of the idler wheel 31 on the transmission sprocket 3, the mounting of the double-ear seats 45 at both ends of the conveyor pipe 41, and the installation of the rubber-layered foot pads at the bottom of the support frame 1, the stability and reliability of the granulator during operation are significantly improved, ensuring the smooth operation of the entire granulation process.

[0050] Working principle and usage process of this utility model:

[0051] Preparation: Check that all components of the granulator are installed correctly, such as the frame support 1, the conveying mechanism 4, the granulation mechanism 5, and the motor 2. Connect the power supply and turn on the heating wire attached to the hopper-shaped bevel of the feed inlet 42 to preheat the feed inlet 42.

[0052] Feeding: The degradable material is fed into the feed inlet 42. The inverted bucket-shaped structure and the annular baffle 421 of the feed inlet 42 can ensure that the material enters smoothly and prevent leakage.

[0053] Start motor 2: Motor 2 starts working, and the transmission sprocket 3 at its power output end pulls the rolling mechanism 4 to run. The idler wheel 31 in the middle section of the transmission sprocket 3 rotates with it, which plays a role in preventing misalignment.

[0054] Material conveying and compression: In the roller conveying mechanism 4, the roller conveyor 43 rotates inside the hollow roller conveying tube 41, conveying and compressing the input material towards the discharge cover 44. The double lugs 45 at both ends of the roller conveying tube 41 reduce the vibration transmission of the roller conveyor 43.

[0055] Cutting: The material is squeezed out through the through holes on the discharge cover 44 by the roller conveyor 43, at which point the granulation mechanism 5 comes into play. The cutting blade 52 can be driven by the rear power source to actively rotate and cut the material into granules.

[0056] End of work: Turn off motor 2 and stop feeding. After the equipment has cooled down, it can be cleaned and maintained.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biodegradable material granulator, comprising a conveying mechanism (4) and a granulation mechanism (5) mounted on a frame support (1), with a driving motor (2) provided below it, the power output end of which is provided with a transmission sprocket (3) to pull the conveying mechanism (4) to run, characterized in that: The conveying mechanism (4) includes a double-ear seat (45) mounted on a bracket (1), on which a cylindrical hollow conveying tube (41) is supported. A rotatable conveying paddle (43) is inserted inside. One end of the conveying paddle (43) is connected to a transmission sprocket (3), and the other end is fitted with a discharge cover (44). The discharge cover (44) has multiple through holes on its disc surface. The material is conveyed and extruded by the conveying paddle (43) to achieve discharge. A feed port (42) for feeding is connected above the conveying tube (41).

2. The biodegradable material granulator according to claim 1, characterized in that: The granulation mechanism (5) includes a knife holder (51) rigidly connected to the discharge cover (44), which is fitted with a cutting knife (52) and a through hole, and is passively cut as it is squeezed out by the roller conveyor (43).

3. The biodegradable material granulator according to claim 2, characterized in that: The cutting blade (52) is equipped with a power source at its rear end to drive rotation, and actively cuts materials by extruding them with the roller feeder (43).

4. The biodegradable material granulator according to claim 3, characterized in that: The feed inlet (42) has an inverted bucket-shaped structure, with an annular baffle (421) around its upper edge to prevent material leakage, and an electric heating wire attached to the bucket-shaped bevel of the feed inlet (42) for heating.

5. The biodegradable material granulator according to claim 4, characterized in that: The transmission sprocket (3) has a freewheel (31) in the middle section, which is inserted into the bracket (1) and rotates with the transmission sprocket (3) to prevent misalignment during transmission.

6. The biodegradable material granulator according to claim 5, characterized in that: The roll tube (41) is equipped with double lugs (45) at both ends to reduce the vibration transmission of the roll propeller (43).

7. A biodegradable material granulator according to any one of claims 1-6, characterized in that: The bracket (1) has foot pads at the four corners of its bottom, and a rubber layer is attached between the foot pads and the ground to reduce vibration.

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