EVA granule processing mixing device
By introducing auger blades and transmission components into the EVA particle processing and mixing device, the residence time of particles in the preheating box is extended and heat transfer is enhanced, solving the problem of insufficient preheating of EVA particles and achieving a more efficient preheating and mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU SHENBO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-10-13
- Publication Date
- 2026-07-21
AI Technical Summary
In existing EVA particle processing and mixing devices, the EVA particles have a short contact time with the preheating pipe during the falling process, resulting in insufficient heat transfer and reduced preheating effect.
A preheating box including auger blades and a transmission assembly was designed. The spiral structure of the auger blades extends the residence time of particles in the preheating box, and the particles come into contact with high-temperature gas through the vent holes on the auger blades. Combined with the transmission assembly, the friction force is adjusted to control the downward speed, so as to achieve full preheating.
This improved the preheating effect of EVA particles, ensuring that the particles remain in the preheating chamber for a sufficient period of time and come into contact with high-temperature gas, thereby enhancing the mixing and stirring efficiency.
Smart Images
Figure CN224527634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of particle mixing technology, specifically an EVA particle processing and mixing device. Background Technology
[0002] The EVA granule processing mixing device is a specialized piece of equipment used to process EVA granules. It is mainly used to mix EVA granules with additives evenly while removing impurities. The device achieves efficient mixing and impurity separation through processes such as mechanical stirring, preheating, and filtration.
[0003] An investigation revealed that a utility model patent (publication number: CN219926574U) discloses an EVA particle processing and mixing device, including a base. A mixing box is mounted on the surface of the base, and a stirring mechanism is installed inside the mixing box. A discharge port is located at the center of the bottom of the mixing box, extending downwards through the base. A preheating box is located at the top of the mixing box, a filtering box is located at the top of the preheating box, and a feeding box is located at the top of the filtering box. The feeding box and the filtering box are slidably connected, and a discharge port is located at the bottom of the feeding box. This utility model, by placing a preheating box between the mixing box and the filtering box, allows the EVA particles to be preheated during filtration via a preheating pipe, ensuring they reach a certain temperature without softening. Then, the rotating dispensing roller pours the EVA particles into the mixing box. Since the EVA particles are already preheated, they heat up even faster upon reheating, thereby improving the mixing efficiency.
[0004] Although the aforementioned patent uses a preheating tube to preheat EVA particles, the contact time between the EVA particles and the preheating tube during the falling process is relatively short, which prevents heat from being quickly transferred to the EVA particles. As a result, the EVA particles cannot be fully preheated, thus reducing the preheating effect of the EVA particles.
[0005] Therefore, this utility model provides an EVA particle processing and mixing device to solve the above problems. Utility Model Content
[0006] This invention provides an EVA particle processing and mixing device, which aims to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an EVA particle processing mixing device, including a mixing box, a preheating box connected above the mixing box, and a feeding cylinder opened inside the preheating box; a filter box connected above the preheating box, and a feeding pipe inserted through the filter box. A protective cover is fixedly connected to the bottom center of the preheating box, and an air supply pipe is connected inside the protective cover. An air supply shaft is connected above the air supply pipe through a rotating joint, and an auger blade is fixedly connected to the outer wall of the air supply shaft. The auger blade is rotatably installed inside the preheating box feed cylinder. A transmission assembly for driving the rotation of the air supply shaft and the auger blades.
[0008] As a preferred technical solution of this application, a first motor is fixedly connected to one side of the mixing box, and the output end of the first motor passes through the interior of the mixing box and is fixedly connected to a stirring paddle. A discharge pipe is opened at the center of the bottom of the mixing box.
[0009] As a preferred technical solution of this application, a guide is fixedly connected to the top of the inner wall of the preheating box, the air supply shaft and the auger blade are an integral structure, and the air supply shaft and the auger blade are hollow inside, and the upper surface of the auger blade is uniformly provided with micro air vents.
[0010] As a preferred technical solution of this application, the air supply pipe is fixedly connected to the inner wall of the protective cover by a bracket, both ends of the air supply shaft are rotatably connected to the inner wall of the feed cylinder by a support frame, and the upper surface of the protective cover is inclined downward on both sides.
[0011] As a preferred technical solution of this application, the transmission assembly includes a second motor, and the second motor is fixedly connected to the outer wall of the mixing box through a support frame. The output end of the second motor is fixedly connected to a main shaft, and a worm is fixedly connected between the main shafts. A worm wheel meshes with the outer wall of the worm, and the worm wheel is fixedly connected to the outside of the air delivery shaft.
[0012] As a preferred technical solution of this application, the main shaft, worm gear and worm wheel are all located inside the protective cover, the number of worm gears and worm wheels corresponds one-to-one with the air supply shaft, and the outside of the main shaft is connected to the protective cover through a bearing seat.
[0013] The beneficial effects of this application are as follows: This invention utilizes the auger blades to increase the residence time of filtered particles inside the preheating chamber, ensuring thorough preheating. The hollow design of the auger blades also allows for the introduction of high-temperature gas, which then comes into full contact with the particles through the ventilation holes on the blades, further enhancing the preheating effect.
[0014] This invention, through the configuration of the transmission component, can drive the air supply shaft and auger blades to rotate at a low speed. The low-speed rotation of the auger blades increases the friction between the auger blades and the sliding particles, further reducing the sliding speed of the particles. This further increases the residence time of the particles inside the preheating chamber, thereby further improving the preheating performance of the particles. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the preheating box and mixing box of this utility model; Figure 3 This is a schematic diagram of the distribution structure of the transmission components of this utility model; Figure 4 This is a schematic diagram of the connection state structure of the transmission component of this utility model; Figure 5 For the present utility model Figure 4 A magnified structural diagram of A in the diagram.
[0016] In the picture: 1. Mixing box; 11. First motor; 12. Agitator; 2. Preheating box; 21. Air supply pipe; 22. Rotary joint; 23. Air supply shaft; 24. Screwdriver blade; 25. Protective cover; 26. Flow guide; 3. Filter box; 31. Feeding pipe; 4. Transmission assembly; 41. Second motor; 42. Main shaft; 43. Worm gear; 44. Worm wheel. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0018] like Figure 1-5As shown, this utility model provides an EVA particle processing mixing device, including a mixing box 1, a preheating box 2 connected to the top of the mixing box 1, and a feeding cylinder opened inside the preheating box 2. A filter box 3 is connected to the top of the preheating box 2, and a feeding pipe 31 is inserted through the filter box 3. A protective cover 25 is fixedly connected to the bottom center of the preheating box 2, and an air supply pipe 21 is connected inside the protective cover 25. An air supply shaft 23 is connected to the top of the air supply pipe 21 through a rotating joint 22, and an auger is fixedly connected to the outer wall of the air supply shaft 23. Blade 24, the auger blade 24 is rotatably installed inside the feed cylinder of the preheating box 2; transmission assembly 4, the transmission assembly 4 is used to drive the rotation of the air supply shaft 23 and the auger blade 24. Through the setting of the preheating box 2, the end of the air supply pipe 21 is connected to the external air supply equipment, so that high temperature gas can be supplied to the inside of the preheating box 2 to achieve preheating treatment of falling particles. At the same time, through the spiral structure of the auger blade 24, the particles descend in a spiral, increasing the residence time of the particles inside the preheating box 2, thereby improving the preheating effect of the particles.
[0019] Furthermore, a first motor 11 is fixedly connected to one side of the mixing tank 1, and the output end of the first motor 11 extends through the interior of the mixing tank 1 and is fixedly connected to a stirring paddle 12. A discharge pipe is provided at the center of the bottom of the mixing tank 1. The stirring paddle 12 is rotated by the operation of the first motor 11, which can stir and mix the particles entering the mixing tank 1. At the same time, since the particles are preheated in the preheating box 2, the particles can melt quickly inside the mixing tank 1, thereby improving the mixing efficiency.
[0020] Furthermore, a guide component 26 is fixedly connected to the top of the inner wall of the preheating box 2. The guide component 26 facilitates the flow of falling particles, ensuring that the particles fall accurately into the feed cylinder. The air supply shaft 23 and the auger blade 24 are an integral structure, and the air supply shaft 23 and the auger blade 24 are hollow. The upper surface of the auger blade 24 is uniformly provided with micro-ventilation holes. Through the opening of the micro-ventilation holes, the high-temperature gas is conveyed upward, which can fully contact the particles sliding down the surface of the auger blade 24, thereby completing the preheating process of the particles.
[0021] Furthermore, the air supply pipe 21 is fixedly connected to the inner wall of the protective cover 25 by a bracket, and both ends of the air supply shaft 23 are rotatably connected to the inner wall of the feed cylinder by a support frame. The upper surface of the protective cover 25 is inclined downward on both sides. The inclined structure further guides the falling particles and avoids the accumulation of residual particles.
[0022] Furthermore, the transmission assembly 4 includes a second motor 41, which is fixedly connected to the outer wall of the mixing box 1 via a support frame. A main shaft 42 is fixedly connected to the output end of the second motor 41. A worm gear 43 is fixedly connected between the main shafts 42, and a worm wheel 44 meshes with the outer wall of the worm gear 43. The worm wheel 44 is fixedly connected to the outside of the air supply shaft 23. The main shaft 42, worm gear 43, and worm wheel 44 are all located inside the protective cover 25. The number of worm gears 43 and worm wheels 44 corresponds one-to-one with the number of air supply shafts 23. The outside of the main shaft 42 is connected to the protective cover 25 via bearing seats. The starting of the second motor 41 drives the main shaft 42 to rotate, which in turn drives the worm wheel 44 to rotate through the rotation of the worm 43. The rotation of the worm wheel 44 drives the air supply shaft 23 and the auger blades 24 to rotate. As the auger blades 24 spiral upward, they can increase the friction with the particles, thereby slowing down the downward speed of the particles. At the same time, by using different rotation speeds of the auger blades 24, different frictional resistances can be provided, which can adjust and control the downward time of the particles, ensuring that the particles can be fully preheated inside the preheating box 2.
[0023] Working principle: First, the particles are added through the feeding pipe 31. After being filtered by the filter box 3, they fall into the preheating box 2. Under the guidance of the guide component 26, they enter the feeding cylinder. Under the spiral structure design of the auger blades 24, the particles spiral down. At the same time, the auger blades 24 can be spirally conveyed upward at low speed under the control of the transmission component 4, which increases the downward resistance of the particles and thus slows down the downward speed of the particles. This increases the residence time of the particles in the preheating box 2, allowing the particles to be fully preheated.
[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An EVA granule processing and mixing device, characterized in that: It includes a mixing box (1), a preheating box (2) is connected above the mixing box (1), and a feeding cylinder is opened inside the preheating box (2). A filter box (3) is connected above the preheating box (2), and a feeding pipe (31) is inserted through the filter box (3). A protective cover (25) is fixedly connected to the bottom center of the preheating box (2), and an air supply pipe (21) is connected inside the protective cover (25). An air supply shaft (23) is connected above the air supply pipe (21) through a rotating joint (22), and an auger blade (24) is fixedly connected to the outer wall of the air supply shaft (23). The auger blade (24) is rotatably arranged inside the feed cylinder of the preheating box (2). The transmission assembly (4) is used to drive the rotation of the air supply shaft (23) and the auger blades (24).
2. The EVA particle processing and mixing device according to claim 1, characterized in that: A first motor (11) is fixedly connected to one side of the mixing tank (1), and the output end of the first motor (11) is fixedly connected to the inside of the mixing tank (1) with a stirring paddle (12). A discharge pipe is opened at the center of the bottom of the mixing tank (1).
3. The EVA particle processing and mixing device according to claim 2, characterized in that: The top of the inner wall of the preheating box (2) is fixedly connected to a guide (26). The air supply shaft (23) and the auger blade (24) are an integral structure, and the air supply shaft (23) and the auger blade (24) are hollow inside. The upper surface of the auger blade (24) is uniformly provided with micro air vents.
4. The EVA particle processing and mixing device according to claim 3, characterized in that: The air supply pipe (21) is fixedly connected to the inner wall of the protective cover (25) by a bracket. Both ends of the air supply shaft (23) are rotatably connected to the inner wall of the feed cylinder by a support frame. The upper surface of the protective cover (25) is inclined downward on both sides.
5. The EVA particle processing and mixing device according to claim 1, characterized in that: The transmission assembly (4) includes a second motor (41), and the second motor (41) is fixedly connected to the outer wall of the mixing box (1) via a support frame. The output end of the second motor (41) is fixedly connected to a main shaft (42). A worm (43) is fixedly connected between the main shafts (42), and a worm wheel (44) meshes with the outer wall of the worm (43). The worm wheel (44) is fixedly connected to the outside of the air supply shaft (23).
6. The EVA particle processing mixing device according to claim 5, characterized in that: The main shaft (42), worm (43) and worm wheel (44) are all inside the protective cover (25). The number of worm (43) and worm wheel (44) corresponds one-to-one with the air supply shaft (23). The outside of the main shaft (42) is connected to the protective cover (25) through the bearing seat.