A granular drying device for modified plastic production
By designing the drive components and tumbling blades, and combining them with high-temperature hot air drying, the safety and efficiency issues of manual unloading in modified plastics production have been solved, achieving a safe and efficient automated drying process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-07
AI Technical Summary
In existing modified plastics production, manual unloading can easily cause burns, and manual cleaning is slow and inefficient, affecting drying efficiency.
The system uses a drive assembly to rotate the drying chamber and agitate the blades, combined with high-temperature hot air drying, to achieve automated unloading and particle turning, avoiding manual contact with high-temperature materials and increasing the contact area between particles and hot air.
It achieves safe and efficient automated unloading, improves drying efficiency and uniformity, avoids the risk of burns caused by human error, and shortens drying time.
Smart Images
Figure CN224465026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic granule drying technology, specifically to a granule drying device for modified plastic production. Background Technology
[0002] In the field of modified plastics production, the particle drying process is crucial. General-purpose and engineering plastics are highly susceptible to combining with moisture in the air during the processing of modified plastics. This is especially true for highly hygroscopic plastics, where the internal moisture content of the raw materials is a significant issue. In subsequent injection molding processes, materials with excessively high moisture content will severely impact product quality, not only increasing the difficulty of processing and molding but also reducing the quality of the finished product.
[0003] However, some existing drying devices rely on manual opening of the discharge port to manually remove plastic particles from the drying device. In high-temperature environments, the temperature of the dried particles will reach a high temperature. When manually unloading, operators may come into contact with the material without paying attention, which may cause burns. At the same time, manual cleaning of plastic particles is slow and inefficient. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a granule drying device for modified plastic production, which solves the problems mentioned in the background technology, such as the risk of burns caused by manual unloading when operators are not paying attention to the material, and the slow speed and low efficiency of manual cleaning of plastic granules.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a granule drying device for modified plastic production, comprising a support frame, a drying chamber rotatably mounted on the support frame, a top cover bolted to the top of the drying chamber, a feed inlet on the top cover, a drive assembly mounted on the support frame on one side of the drying chamber, the drive assembly including a first motor, the output end of the first motor connected to a rotating shaft, the rotating shaft rotatably mounted in a rotating box, the rotating box fixedly mounted on the support frame, a worm gear mounted on the rotating shaft, the worm gear meshing with a worm wheel, and the worm wheel connected to the drying chamber.
[0006] Preferably, a retaining ring is fixedly provided on the inner wall of the drying oven.
[0007] Preferably, a vent plate is bolted to the fixing ring, and the vent plate has vent holes.
[0008] Preferably, the drying chamber is equipped with an air inlet pipe, which is connected to an external hot air blower.
[0009] Preferably, the air inlet pipe is connected to the annular pipe, the annular pipe is provided with an air outlet, and the annular pipe is located below the vent plate.
[0010] Preferably, a second motor is installed at the bottom of the drying oven, a rotating rod is connected to the output end of the second motor, and a turning blade is installed at the top of the rotating rod, with the turning blade positioned above the air vent plate.
[0011] This invention provides a granule drying device for modified plastics production. It has the following advantages:
[0012] (1) This utility model drives the rotating shaft to rotate through the first motor in the drive assembly, which drives the worm and worm wheel to mesh, thereby causing the drying box to flip and realize the rotation and unloading of the drying box. There is no need for manual direct contact with high temperature materials. At the same time, compared with manual cleaning, the mechanical rotation unloading speed is faster and the material can be unloaded in a short time, avoiding the problems of slow speed and low efficiency of manual cleaning.
[0013] (2) This utility model uses a second motor at the bottom of the drying chamber to drive the rotating rod to rotate, so that the turning blades turn the plastic particles above the air vent plate. This allows the plastic particles to change position continuously, so that the particles that were originally inside can also come into full contact with the hot air, avoiding the problem of insufficient drying caused by particle accumulation. At the same time, it can break the agglomeration between particles, increase the contact area between particles and hot air, accelerate the evaporation rate of moisture, significantly improve drying efficiency, and shorten drying time. Attached Figure Description
[0014] Figure 1 This is a diagram showing the overall structure of the present utility model;
[0015] Figure 2 This utility model Figure 1 A structural diagram of the driving component;
[0016] Figure 3 This utility model Figure 1 Internal structure diagram of the drying oven;
[0017] Figure 4 This utility model Figure 3 An exploded view of the drying oven;
[0018] Figure 5 This utility model Figure 1 Structural diagram of the top cover.
[0019] In the diagram, 1. Bracket;
[0020] 2. Drive assembly; 21. First motor; 22. Rotary box; 23. Rotating shaft; 231. Worm gear; 24. Worm wheel;
[0021] 3. Top cover; 31. Feed inlet;
[0022] 4. Drying oven; 41. Rotating rod; 42. Second motor; 43. Tilting blades; 44. Fixing ring;
[0023] 5. Inlet pipe; 51. Circular pipe; 52. Outlet;
[0024] 6. Breathable panel. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1:
[0027] Please see Figures 1-5 This utility model provides a particle drying device for modified plastic production, including a support 1, a drying chamber 4 rotatably mounted on the support 1, a top cover 3 bolted to the top of the drying chamber 4, a feed inlet 31 provided on the top cover 3, a drive assembly 2 provided on the support 1 on one side of the drying chamber 4, the drive assembly 2 including a first motor 21, the output end of the first motor 21 connected to a rotating shaft 23, the rotating shaft 23 rotatably mounted in a rotating box 22, the rotating box 22 fixedly mounted on the support 1, a worm gear 231 provided on the rotating shaft 23, the worm gear 231 meshing with a worm wheel 24, the worm wheel 24 being connected to the drying chamber 4.
[0028] A fixing ring 44 is fixedly installed on the inner wall of the drying oven 4;
[0029] A vent plate 6 is bolted to the fixed ring 44, and the vent plate 6 has vent holes.
[0030] The drying oven 4 is equipped with an air inlet pipe 5, which is connected to an external hot air blower.
[0031] The air inlet pipe 5 is connected to the annular pipe 51, and the annular pipe 51 is provided with an air outlet 52. The annular pipe 51 is located below the vent plate 6.
[0032] A second motor 42 is installed at the bottom of the drying oven 4. A rotating rod 41 is connected to the output end of the second motor 42. A turning blade 43 is installed on the top of the rotating rod 41. The turning blade 43 is positioned above the air vent plate 6.
[0033] Specifically, plastic granules enter the drying chamber 4 through the feed inlet 31 on the top cover 3, above the vent plate 6. After the external hot air blower is started, the generated high-temperature hot air is rapidly transported along the air inlet pipe 5 at a stable flow rate and temperature. The air inlet pipe 5 is connected to the annular pipe 51, which is arranged in a ring around the bottom of the vent plate 6, and its surface is evenly distributed with multiple air outlets 52. After the hot air is evenly distributed in the annular pipe 51, it rises evenly from the air outlets 52 in a diffused manner, passes through the dense vent holes on the vent plate 6, and fully contacts the plastic granules above the vent plate 6 in all directions without dead angles. The moisture on the surface of the granules is rapidly heated and evaporated under the action of the hot air.
[0034] After the second motor 42 starts, its powerful output is transmitted to the rotating rod 41. The rotating rod 41 is vertically installed at the bottom of the drying chamber 4, and the top is connected to the tumbling blades 43. As the rotating rod 41 rotates, the tumbling blades 43 agitate the plastic granules at a stable speed above the air vent plate 6. During the agitation process, granules that were originally at the bottom or inside are turned to the surface, while granules that were originally on the surface are buried inside. This cycle repeats to ensure that each plastic granule has the opportunity to fully contact the hot air. At the same time, the agitation of the tumbling blades 43 can also effectively break up the agglomeration of granules caused by static electricity, adhesion, and other factors, breaking large granule clusters into small granule clusters or even individual granules. This greatly increases the contact area between the granules and the hot air, and accelerates the diffusion of moisture from the inside of the granules to the surface and the evaporation of surface moisture.
[0035] Once the plastic granules reach the predetermined drying standard, the first motor 21 is activated. The output of the first motor 21 drives the rotating shaft 23 to rotate within the rotating box 22, and the worm gear 231 on the rotating shaft 23 rotates accordingly. The worm gear 231 meshes tightly with the worm wheel 24, which is fixedly connected to the drying box 4. Driven by the worm gear 231, the worm wheel 24 drives the entire drying box 4 to rotate around the rotating mounting point on the support 1. As the drying box 4 rotates, the dried plastic granules are discharged from the feed inlet 31 under the action of gravity and fall into the subsequent collection device. The entire unloading process requires no manual intervention, achieving automated unloading. At the same time, the entire unloading process does not require direct contact between the operator and the high-temperature plastic granules inside the drying box 4. The operator only needs to control the first motor 21 from a safe distance to complete the unloading. This avoids the risk of burns caused by human error or failure to pay attention to the high-temperature material, fundamentally ensuring the personal safety of the operator.
[0036] Working principle: The plastic granules to be dried are conveyed through the feed inlet 31 to the air vent plate 6 inside the drying chamber 4. An external hot air fan is activated, and high-temperature hot air flows rapidly into the annular pipe 51 through the air inlet pipe 5. The annular pipe 51 surrounds the air vent plate 6, and its evenly distributed air outlets 52 diffuse the hot air upwards. The hot air passes through the air vents on the air vent plate 6, making full contact with the plastic granules above. The moisture on the surface of the granules evaporates rapidly under the action of the hot air, initiating the initial drying process.
[0037] The second motor 42 at the bottom of the drying oven 4 is turned on, and its power is transmitted to the tumbling blades 43 through the rotating rod 41. The tumbling blades 43 continuously stir above the air vent plate 6, turning the plastic particles at the bottom and inside to the surface, while the surface particles are buried inside. This not only allows each particle to fully contact the hot air, but also breaks up the particle clumps formed by static electricity and adhesion, increases the contact area, accelerates the diffusion and evaporation of moisture from the inside of the particles to the surface, and significantly improves the drying efficiency and uniformity.
[0038] When the plastic granules reach the predetermined drying standard, the first motor 21 in the drive assembly 2 is activated. The first motor 21 drives the rotating shaft 23 to rotate within the rotating box 22, and the worm gear 231 on the rotating shaft 23 rotates accordingly. The worm gear 231 meshes with the worm wheel 24, driving the drying box 4 connected to the worm wheel 24 to rotate around the rotation point of the support 1. Under the action of gravity, the dried plastic granules are discharged from the feed inlet 31 and fall into the collection device. The entire unloading process is automated, and the operator can control the first motor 21 from a safe distance, avoiding contact with high-temperature materials and ensuring personal safety.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A granule drying device for modified plastic production, comprising a support frame (1), characterized in that: A drying chamber (4) is rotatably mounted on the support (1). A top cover (3) is bolted to the top of the drying chamber (4). A feed inlet (31) is provided on the top cover (3). A drive assembly (2) is provided on the support (1) on one side of the drying chamber (4). The drive assembly (2) includes a first motor (21). The output end of the first motor (21) is connected to a rotating shaft (23). The rotating shaft (23) is rotatably mounted in a rotating box (22). The rotating box (22) is fixedly mounted on the support (1). A worm gear (231) is provided on the rotating shaft (23). The worm gear (231) meshes with a worm wheel (24). The worm wheel (24) is connected to the drying chamber (4).
2. The granule drying device for modified plastics production according to claim 1, characterized in that: A fixing ring (44) is fixedly installed on the inner wall of the drying oven (4).
3. The granule drying device for modified plastics production according to claim 2, characterized in that: A ventilated plate (6) is bolted to the fixed ring (44), and the ventilated plate (6) has vent holes.
4. The granule drying device for modified plastics production according to claim 3, characterized in that: The drying chamber (4) is equipped with an air inlet pipe (5), which is connected to an external hot air blower.
5. The granule drying apparatus for modified plastics production according to claim 4, characterized in that: The air inlet pipe (5) is connected to the annular pipe (51), and the annular pipe (51) is provided with an air outlet (52). The annular pipe (51) is located below the air permeable plate (6).
6. The granule drying apparatus for modified plastics production according to claim 5, characterized in that: The bottom of the drying oven (4) is equipped with a second motor (42), and a rotating rod (41) is connected to the output end of the second motor (42). A turning blade (43) is installed on the top of the rotating rod (41), and the turning blade (43) is positioned above the air vent plate (6).