Degradable plastic cut material drying device
The drying device, which combines the ribs inside the cylinder with a hot air blower, solves the problem of uneven drying of biodegradable plastic cuttings in existing technologies, achieving uniform drying and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KEXIN RUBBER PLASTIC MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing biodegradable plastic cutting and drying equipment cannot evenly turn the cuttings during the drying process, resulting in inconsistent drying levels, with some cuttings being over-dried or containing too much moisture.
The system employs a rib-driven tumbling structure within the cylinder in conjunction with a hot air blower. A servo motor drives the cylinder to rotate, causing the ribs to lift the cut material upwards and allow it to slide down at an angle. Combined with the high-temperature airflow blown in by the hot air blower, this achieves uniform tumbling and drying of the cut material.
It achieves uniform heating of the cut material, significantly shortens the drying time, improves production efficiency, ensures uniform drying of the cut material, avoids over-drying or moisture residue, and improves the processing performance and appearance quality of the product.
Smart Images

Figure CN224240085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of biodegradable plastic production equipment, and in particular to a biodegradable plastic cutting and drying device. Background Technology
[0002] Biodegradable plastic granules refer to the process of cutting biodegradable plastic raw materials into granules of desired shapes and sizes using specific processing methods. These granules or sheets can be widely used in various fields, such as packaging, agriculture, and medicine.
[0003] A biodegradable plastic cutting drying device is a specialized device for removing moisture from biodegradable plastic cuttings. Existing devices heat air to a certain temperature using electric heating or other energy sources, then blow the heated air into the dryer to contact the biodegradable plastic cuttings, causing the moisture to gradually evaporate. However, existing devices cannot evenly agitate the cuttings during the drying process. This results in some cuttings being exposed to high-temperature air for extended periods, or remaining in relatively low-temperature or poorly ventilated areas, leading to inconsistent drying levels. In other words, some cuttings may be over-dried, while others may still contain significant amounts of moisture.
[0004] To address the above issues, we propose a biodegradable plastic cutting and drying device. Utility Model Content
[0005] The purpose of this invention is to solve the problem that existing biodegradable plastic cutting and drying devices cannot evenly turn over the biodegradable plastic cuttings during the drying process, and to propose a biodegradable plastic cutting and drying device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A biodegradable plastic cutting and drying device includes a frame, a cylinder inside the frame, annular rings at both ends of the cylinder, the annular rings being rotatably mounted on the cylinder, two spaced guide rods fixedly installed on both sides of the frame, the guide rods passing through the annular rings, and springs fitted around the guide rods, with both ends of the springs fixedly connected to the frame and the annular rings respectively.
[0008] Multiple ribs arranged in a circular array are fixedly installed inside the cylinder. Both ends of the cylinder are open. A hot air blower is fixedly installed on the frame. The exhaust pipe of the hot air blower faces the inside of the cylinder. A drive mechanism is installed on the frame to drive the cylinder to rotate.
[0009] Preferably, limit blocks are fixedly installed at the ends of the guide rods.
[0010] Preferably, the drive mechanism includes a gear ring, which is sleeved on the outside of the cylinder and fixedly connected to the cylinder. A servo motor is fixedly mounted on the frame, and a gear is fixedly mounted on the output shaft end of the servo motor, which meshes with the gear ring.
[0011] Preferably, the contact surfaces of the gear and the gear ring are both polished.
[0012] Preferably, the annular ring located on one side is configured as a magnet, and two electromagnets are fixedly installed on the frame at intervals, both of which are positioned facing the annular ring. When the electromagnets are energized, they can apply an attractive force to the annular ring.
[0013] Preferably, a controller is mounted on the frame, and both electromagnets are electrically connected to the controller, which is used to control the operation of the two electromagnets.
[0014] Preferably, the bottom of the frame is provided with shock-absorbing pads.
[0015] Preferably, the cylinder is made of metal iron, and annular sealing components are provided at the ports on both sides of the cylinder. Annular magnets are fixedly installed on the annular sealing components, and the annular magnets are attracted to the side openings of the cylinder.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] The ribs inside the drum cause the biodegradable plastic cut material to rise. When the ribs rotate to an inclined position, the biodegradable plastic cut material on the ribs slides down to the bottom of the drum under gravity and returns to the space between two adjacent ribs. This continuous tossing and tumbling of the biodegradable plastic cut material within the drum ensures more comprehensive contact with the hot air, guaranteeing uniform heating of every part and thus accelerating the drying process. Compared to static drying, uniform tumbling significantly shortens drying time and improves production efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a biodegradable plastic cutting and drying device proposed in this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of a biodegradable plastic cutting and drying device proposed in this utility model. Figure 2 ;
[0020] Figure 3 This is an exploded schematic diagram of the cylinder, annular sealing component, and annular magnet in a biodegradable plastic cutting and drying device proposed in this utility model;
[0021] Figure 4This is a schematic diagram of the internal structure of the cylinder in a biodegradable plastic cutting and drying device proposed in this utility model;
[0022] Figure 5 This utility model proposes a biodegradable plastic cutting and drying device. Figure 2 Enlarged diagram of point A in the diagram;
[0023] Figure 6 This is an enlarged schematic diagram of a portion of the gear structure in a biodegradable plastic cutting and drying device proposed in this utility model.
[0024] In the diagram: 1. Frame; 2. Cylinder; 3. Annular ring; 4. Guide rod; 5. Spring; 6. Rib; 7. Hot air blower; 8. Limit block; 9. Gear ring; 10. Servo motor; 11. Gear; 12. Electromagnet; 13. Controller; 14. Annular sealing component; 15. Annular magnet. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example 1
[0027] Reference Figure 1-6 A biodegradable plastic cutting and drying device includes a frame 1, a cylinder 2 inside the frame 1, and annular rings 3 fitted at both ends of the cylinder 2. The annular rings 3 are rotatably mounted on the cylinder 2. Two spaced guide rods 4 are fixedly installed on both sides of the frame 1, passing through the annular rings 3. Springs 5 are fitted on the outside of the guide rods 4, and both ends of the springs 5 are fixedly connected to the frame 1 and the annular rings 3, respectively. Multiple ribs 6 arranged in a circumferential array are fixedly installed inside the cylinder 2. The cylinder 2 is open at both ends. A hot air blower 7 is fixedly installed on the frame 1, with the exhaust pipe of the hot air blower 7 facing inward toward the cylinder 2. A drive mechanism is installed on the frame 1 to drive the cylinder 2 to rotate.
[0028] The drive mechanism includes a gear ring 9, which is sleeved on the outside of the cylinder 2 and fixedly connected to the cylinder 2. A servo motor 10 is fixedly installed on the frame 1, and a gear 11 is fixedly installed on the output shaft end of the servo motor 10. The gear 11 meshes with the gear ring 9.
[0029] By placing biodegradable plastic shavings inside the cylinder 2, positioned between two adjacent ribs 6, a servo motor 10 drives a gear 11 to rotate. The gear 11 then drives a gear ring 9 to rotate synchronously with the cylinder 2. The ribs 6 inside the cylinder 2 cause the biodegradable plastic shavings to rise. When the ribs 6 rotate to an inclined position, the biodegradable plastic shavings on the ribs 6 slide down to the bottom of the cylinder 2 under gravity and return to the space between the two adjacent ribs 6. This cycle repeats, with the biodegradable plastic shavings continuously being thrown down and tumbled inside the cylinder 2. A hot air blower 7 introduces high-temperature airflow into the cylinder 2, which is then discharged from the other end of the cylinder 2. The high-temperature airflow blows onto the biodegradable plastic shavings on the ribs 6 and onto the shavings during their descent, effectively drying the biodegradable plastic shavings.
[0030] By uniformly turning the material, biodegradable plastic slabs can come into more comprehensive contact with hot air, ensuring that every part is heated evenly, thereby accelerating the drying process. Compared to static drying, uniform turning significantly shortens drying time and improves production efficiency. The device avoids situations where some slabs are over-dried or still contain excessive moisture, ensuring uniform drying. Uniformly dried slabs are less prone to defects such as deformation, cracking, bubbles, and silver streaks during subsequent processing, improving the product's processing performance and appearance quality.
[0031] Based on Example 1, Example 2:
[0032] Reference Figure 2-6 The annular ring 3 on one side is configured as a magnet. Two electromagnets 12, spaced apart, are fixedly mounted on the frame 1, both facing the annular ring 3. When energized, the electromagnets 12 exert an attractive force on the annular ring 3. A controller 13 is mounted on the frame 1, and both electromagnets 12 are electrically connected to the controller 13. The controller 13 is used to control the operation of the two electromagnets 12.
[0033] During the drying process, when the cut material accumulates inside the cylinder 2, the turning and cutting process is stopped. The controller 13 controls two electromagnets 12 to be simultaneously energized. When energized, the two electromagnets 12 apply an attractive force to the annular ring 3. Then, the two electromagnets 12 are simultaneously de-energized, and the two electromagnets 12 are intermittently energized. The annular ring 3 moves towards the electromagnet 12 due to the attractive force, and the cylinder 2 moves simultaneously. The spring 5 deforms, the electromagnets 12 are de-energized, and the spring 5's elasticity causes the cylinder 2 to move in the opposite direction. This allows the cylinder 2 to continuously oscillate in the direction of the guide rod 4, ensuring a more even distribution of the cut material inside the cylinder 2 and preventing uneven drying due to material accumulation.
[0034] The frame 1 is equipped with a shock-absorbing pad at its bottom to reduce vibrations during operation. The cylinder 2 is made of iron, and annular sealing elements 14 are installed at both ends of the cylinder 2. Annular magnets 15 are fixedly mounted on each annular sealing element 14, and the magnets 15 are attracted to the side openings of the cylinder 2. During the drying process, the annular sealing elements 14 seal a portion of the cylinder 2's openings, and the magnets 15 adhere to the cylinder 2 to secure the sealing elements 14. This prevents the cut material inside the cylinder 2 from falling out of the cylinder 2's openings during shaking and rotation.
[0035] The contact surfaces of gear 11 and gear ring 9 are both polished. When the cylinder 2 shakes, gear 11 and gear ring 9 slide relative to each other. The polishing of the contact surfaces of gear 11 and gear ring 9 can reduce mutual wear. Limiting blocks 8 are fixedly installed at the ends of guide rods 4. The limiting blocks 8 limit the ring ring 3 and prevent the ring ring 3 from detaching from the guide rods 4.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A biodegradable plastic cutting and drying device, comprising a frame (1), characterized in that, The frame (1) is provided with a cylinder (2), and both ends of the cylinder (2) are fitted with annular rings (3). The annular rings (3) are rotatably mounted on the cylinder (2). Two spaced guide rods (4) are fixedly installed on both sides of the frame (1). The guide rods (4) pass through the annular rings (3). Springs (5) are fitted on the outside of the guide rods (4). The two ends of the springs (5) are fixedly connected to the frame (1) and the annular rings (3) respectively. Multiple ribs (6) arranged in a circular array are fixedly installed inside the cylinder (2). Both ends of the cylinder (2) are open. A hot air blower (7) is fixedly installed on the frame (1). The exhaust pipe of the hot air blower (7) is set towards the inside of the cylinder (2). A drive mechanism is installed on the frame (1). The drive mechanism is used to drive the cylinder (2) to rotate.
2. The biodegradable plastic cutting and drying device according to claim 1, characterized in that, Limiting blocks (8) are fixedly installed at the ends of the guide rods (4).
3. The biodegradable plastic cutting and drying device according to claim 1, characterized in that, The drive mechanism includes a gear ring (9), which is sleeved on the outside of the cylinder (2) and fixedly connected to the cylinder (2). A servo motor (10) is fixedly installed on the frame (1), and a gear (11) is fixedly installed on the output shaft end of the servo motor (10). The gear (11) meshes with the gear ring (9).
4. The biodegradable plastic cutting and drying device according to claim 3, characterized in that, The contact surfaces of the gear (11) and the gear ring (9) are both polished.
5. The biodegradable plastic cutting and drying device according to claim 1, characterized in that, The annular ring (3) located on one side is configured as a magnet. Two electromagnets (12) are fixedly installed on the frame (1) at intervals. The electromagnets (12) are both positioned facing the annular ring (3). When the electromagnets (12) are energized, they can apply an attraction force to the annular ring (3).
6. The biodegradable plastic cutting and drying device according to claim 5, characterized in that, A controller (13) is installed on the frame (1), and the two electromagnets (12) are electrically connected to the controller (13). The controller (13) is used to control the operation of the two electromagnets (12).
7. The biodegradable plastic cutting and drying device according to claim 1, characterized in that, The bottom of the frame (1) is provided with shock-absorbing pads.
8. The biodegradable plastic cutting and drying device according to claim 6, characterized in that, The cylinder (2) is made of metal iron. Annular sealing parts (14) are provided at the ports on both sides of the cylinder (2). Annular magnets (15) are fixedly installed on the annular sealing parts (14). The annular magnets (15) are attracted to the side ports of the cylinder (2).