Mixer for pearl wool production
By adopting a design in which the first rotating rod and the sleeve rotate in opposite directions in the mixing machine for EPE foam production, combined with the revolution and rotation of the second rotating rod, the problem of material stratification in the single rotation mode is solved, and a more efficient mixing effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QINGYU TECH
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-19
AI Technical Summary
Existing EPE foam production mixers have poor mixing results because the single-rotation agitator cannot generate effective shearing force, leading to material stratification and uneven mixing.
The design employs the counter-rotation of the first rotating rod and the sleeve, combined with the revolution and rotation of the second rotating rod, to enhance the shearing force of the mixing rod and prevent material accumulation through the scraper, thus achieving multi-directional mixing operation.
It improves the uniformity and efficiency of mixing, prevents material stratification, and ensures that raw materials are fully mixed.
Smart Images

Figure CN224255775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing and processing technology, specifically to a mixing machine for pearl cotton production. Background Technology
[0002] EPE pearl cotton is a new type of packaging material made from polyethylene plastic granules and auxiliary materials through processes such as heating, extrusion, and foaming. Due to its excellent physical properties, pearl cotton is now widely used in various industries such as car seat cushions, pillows, computers, audio equipment, medical devices, hardware, handicrafts, glass, ceramics, and gift packaging.
[0003] A prior art mixing machine, such as the utility model patent document with authorization announcement number "CN222538055U" and patent name "A Mixing Device for Pearl Cotton Production", discloses a mixing machine including a mixing and stirring component, a mixing and discharging component, and a mixing and positioning component. The mixing and stirring component includes a mixing cylinder, stirring blades, and a stirring motor. The mixing and discharging component includes a feeding hopper, a spreading blade, a discharging seat, a discharging bracket, and a tilting shaft. The feeding hopper is arranged at the top of the mixing cylinder, and the spreading blade is rotatably installed at the bottom of the feeding hopper. The spreading blade is connected to the output shaft of the stirring motor. The discharging seat is rotatably installed on the discharging bracket, and tilting shafts are arranged on both sides of the discharging seat. The tilting shafts are rotatably installed on the discharging bracket. The mixing and positioning component includes a positioning clamp and a ball screw.
[0004] The aforementioned patent document describes the mixing of materials inside the tank using stirring blades. However, since a single-rotation stirrer is unlikely to generate effective shearing force, it is easy for the materials to separate into layers and become unevenly mixed, resulting in poor mixing performance. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of the existing technology by proposing a mixing machine for EPE foam production. This machine solves the technical problem mentioned in the background art: the existing mixing devices use stirring blades to mix materials inside the tank, but because the single-rotation mode of the stirrer is difficult to generate effective shearing force, the materials are prone to layering and cannot be mixed evenly, resulting in poor mixing effect.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A mixing machine for producing pearl cotton includes a tank body with an inlet and an outlet. A first rotating rod is rotatably mounted inside the tank body, and a hollow sleeve is rotatably mounted inside the tank body. The sleeve is coaxially fitted around the outer ring of the first rotating rod. A driving assembly is provided on the tank body for synchronously driving the first rotating rod and the sleeve to rotate in opposite directions. A plurality of first stirring rods are provided on the outer wall of the first rotating rod. Mounting rods are fixed on both sides of the sleeve. Second rotating rods are rotatably connected to two of the mounting rods. A plurality of second stirring rods are provided on the outer walls of the two second rotating rods. A rotating assembly is provided inside the tank body for driving the two second rotating rods to rotate.
[0008] Working principle:
[0009] First, the operator pours the raw materials to be mixed into the tank through the inlet. Then, the operator starts the drive assembly, which synchronously drives the first rotating rod and the sleeve to rotate in opposite directions. This causes the sleeve to drive the second rotating rod to rotate, which in turn drives the first stirring rod to rotate, and the second rotating rod to drive the second stirring rod to rotate, thus mixing the raw materials inside the tank. The rotating assembly can also drive the two second rotating rods to rotate around the axis of the first rotating rod while they are rotating around the first rotating rod. Thus, the two second rotating rods can rotate on their own axes while revolving around the first rotating rod. After the raw materials inside the tank are mixed, the operator can collect the mixed raw materials through the outlet.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] First, a first rotating rod and a second rotating rod are provided, and the first stirring rod and the second stirring rod on the first rotating rod and the second rotating rod can perform mixing operations on the raw materials inside the tank.
[0012] Secondly, a driving component is provided, which can synchronously drive the first rotating rod and the sleeve to rotate, and the rotating rods of the first rotating rod and the sleeve rotate in opposite directions, thereby increasing the shearing force of the first stirring rod and the second stirring rod on the raw materials.
[0013] Third, a rotating component is provided, which allows the second rotating rod to revolve around the axis of the first rotating rod while also rotating on its own axis, thereby improving the mixing of raw materials. Attached Figure Description
[0014] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model;
[0015] Figure 2 for Figure 1 Enlarged cross-sectional view of the structure at point A.
[0016] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Inlet; 3. Outlet; 4. First rotating rod; 5. Sleeve; 6. First stirring rod; 7. Mounting rod; 8. Second rotating rod; 9. Second stirring rod; 10. First bevel gear; 11. Second bevel gear; 12. Motor; 13. Third bevel gear; 14. Gear ring; 15. First gear; 16. Guide rail; 17. Fixed rod; 18. Third stirring rod; 19. Scraper; 20. Connecting rod; 21. Spring; 22. Mounting cavity; 23. Through groove; 24. Sealing ring. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0018] Example:
[0019] like Figure 1 As shown, a mixing machine for producing pearl cotton includes a tank 1 with an inlet 2 and an outlet 3. A first rotating rod 4 is rotatably mounted inside the tank 1, and a hollow sleeve 5 is rotatably mounted inside the tank 1. The sleeve 5 is coaxially fitted around the outer ring of the first rotating rod 4. A bearing is provided between the first rotating rod 4 and the sleeve 5. Several first stirring rods 6 are provided on the outer wall of the first rotating rod 4. Mounting rods 7 are fixed on both sides of the sleeve 5. Second rotating rods 8 are rotatably connected to the two mounting rods 7 respectively. Several second stirring rods 9 are provided on the outer wall of the two second rotating rods 8. The first stirring rods 6 and the second stirring rods 9 can be driven by the first rotating rod 4 and the second rotating rods 8 to stir the raw materials inside the tank 1.
[0020] like Figure 1 As shown, the tank body 1 is equipped with a drive assembly for synchronously driving the first rotating rod 4 and the sleeve 5 to rotate in opposite directions. The drive assembly includes a first bevel gear 10, a second bevel gear 11, a motor 12, and a third bevel gear 13. One end of the first rotating rod 4 passes through the top of the tank body 1. The first bevel gear 10 is fixed to the first rotating rod 4 and is located outside the tank body 1. One end of the sleeve 5 passes through the top of the tank body 1. The second bevel gear 11 is fixed to the sleeve 5 and is located outside the tank body 1. The motor 12 is fixed to the top of the tank body 1. The third bevel gear 13 is fixed on the output end of the motor 12 and meshes with the first bevel gear 10 and the second bevel gear 11. The motor 12 drives the third bevel gear 13, which can synchronously drive the first bevel gear 10 and the second bevel gear 11 to rotate. Thus, the first bevel gear 10 can drive the first rotating rod 4 to rotate, and the second bevel gear 11 can drive the sleeve 5 to rotate. The rotation directions of the first rotating rod 4 and the sleeve 5 are opposite, thereby increasing the shearing force of the first stirring rod 6 and the second stirring rod 9 on the material during mixing.
[0021] like Figure 1As shown, the tank body 1 is equipped with a rotating assembly for driving the two second rotating rods 8 to rotate. The rotating assembly includes a gear ring 14 and two first gears 15. The gear ring 14 is fixed on the inner wall of the tank body 1, and the two first gears 15 are respectively fixed at the ends of the two second rotating rods 8 and both first gears 15 mesh with the gear ring 14. An annular guide rail 16 is fixed inside the tank body 1. The ends of the two mounting rods 7 away from the sleeve 5 are slidably disposed in the guide rail 16. When the second rotating rod 8 revolves around the axis of the first rotating rod 4, the first gears 15 at the ends of the second rotating rod 8 rotate by meshing with the tooth grooves on the inner wall of the gear ring 14, so that the second rotating rod 8 rotates on its own axis while revolving around the first rotating rod 4, thereby improving the mixing of raw materials by the first stirring rod 6 and the second stirring rod 9.
[0022] like Figure 1 and Figure 2 As shown, both mounting rods 7 are fixed with a fixing rod 17 at their bottom, and several third stirring rods 18 are fixed on the two fixing rods 17. The mounting rods 7 can drive the third stirring rods 18 to rotate, thereby further expanding the mixing of raw materials inside the tank 1. Both mounting rods 7 are provided with scraper rods 19 to prevent materials from accumulating on the inner wall of the tank 1. The scraper rods 19 can scrape off the raw materials near the inner wall of the tank 1, thereby avoiding the accumulation of raw materials near the inner wall of the tank 1. Both mounting rods 7 are provided with a tight-fitting component to make the scraper rods 19 fit tightly against the inner wall of the tank 1. The tight-fitting component can reduce the gap between the scraper rods 19 and the inner wall of the tank 1.
[0023] like Figure 1 and Figure 2 As shown, the close-fitting assembly includes several connecting rods 20 and several springs 21. Each of the several third stirring rods 18 has an installation cavity 22. The fixing rod 17 has several through grooves 23, which are connected to the corresponding installation cavities 22. The connecting rods 20 are fixed on the scraper rod 19 and can slide through the corresponding through grooves 23 and extend into the installation cavity 22. The springs 21 are fixed on the inner wall of the installation cavity 22, and the other end of the springs 21 is fixedly connected to the corresponding connecting rods 20. The springs 21 push the connecting rods 20 to push the scraper rod 19, so that the scraper rod 19 can closely adhere to the inner wall surface of the tank 1. The connection between the through groove 23 and the connecting rod 20 is provided with an elastic sealing ring 24 to prevent raw materials from entering the installation cavity 22.
[0024] Working principle:
[0025] First, feed raw materials into the tank 1 through the feed inlet 2 at the top of the tank. After feeding, close the sealing cap of the feed inlet 2 to ensure that a sealed environment is formed inside the tank 1.
[0026] The operator then starts the motor 12, which simultaneously engages the first bevel gear 10 of the first rotating rod 4 and the second bevel gear 11 of the sleeve 5 via the third bevel gear 13, causing the first rotating rod 4 and the sleeve 5 to rotate in opposite directions. The first rotating rod 4 drives the first stirring rod 6 on its outer wall to perform strong shearing and axial pushing on the material in the central area, breaking up the raw material agglomeration. The sleeve 5 drives the second rotating rod 8 through the mounting rods 7 on both sides. The second stirring rod 9 revolves around the axis of the first rotating rod 4, forming a radial diffusion flow that propels the material to move inside the tank 1. The third stirring rod 18 on the fixed rod 17 further stirs the material and enhances lateral mixing. The first gear 15 at the end of the second rotating rod 8 meshes with the gear ring 14 on the inner wall of the tank 1, driving the second rotating rod 8 to rotate on its own axis while revolving around the axis of the first rotating rod 4, expanding the stirring range of the material and enhancing the mixing between the materials. The scraper 19 on the mounting rod 7 is pressed against the inner wall of the tank 1 by the force of the spring 21 pushing the connecting rod 20, and slides against the inner wall of the tank 1 when it revolves with the sleeve 5, preventing the material from accumulating at the edge of the inner wall of the tank 1.
[0027] Once the materials inside tank 1 have been mixed, open the discharge port 3 at the bottom of tank 1 to discharge the materials inside tank 1 to the outside.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A mixing machine for producing pearl cotton, characterized in that, The container includes a tank (1), which has an inlet (2) and an outlet (3). A first rotating rod (4) is rotatably mounted inside the tank (1). A hollow sleeve (5) is rotatably mounted inside the tank (1). The sleeve (5) is coaxially mounted on the outer ring of the first rotating rod (4). The tank (1) is provided with a drive assembly for synchronously driving the first rotating rod (4) and the sleeve (5) to rotate in opposite directions. The outer wall of the first rotating rod (4) is provided with several first stirring rods (6). Mounting rods (7) are fixed on both sides of the sleeve (5). Two second rotating rods (8) are rotatably connected to the two mounting rods (7). Several second stirring rods (9) are provided on the outer walls of the two second rotating rods (8). The tank (1) is provided with a rotating assembly for driving the two second rotating rods (8) to rotate.
2. The mixing machine for producing pearl cotton according to claim 1, characterized in that: The drive assembly includes a first bevel gear (10), a second bevel gear (11), a motor (12), and a third bevel gear (13). One end of the first rotating rod (4) passes through the top of the tank body (1). The first bevel gear (10) is fixed on the first rotating rod (4) and is located outside the tank body (1). One end of the sleeve (5) passes through the top of the tank body (1). The second bevel gear (11) is fixed on the sleeve (5) and is located outside the tank body (1). The motor (12) is fixed on the top of the tank body (1). The third bevel gear (13) is fixed on the output end of the motor (12) and meshes with the first bevel gear (10) and the second bevel gear (11).
3. The mixing machine for producing pearl cotton according to claim 1, characterized in that: The rotating assembly includes a gear ring (14) and two first gears (15). The gear ring (14) is fixed on the inner wall of the tank (1), and the two first gears (15) are respectively fixed at the ends of two second rotating rods (8) and both first gears (15) mesh with the gear ring (14).
4. A mixing machine for producing pearl cotton according to claim 1, characterized in that: The tank body (1) is fixed with an annular guide rail (16) inside, and the ends of the two mounting rods (7) away from the sleeve (5) are slidably disposed in the guide rail (16).
5. A mixing machine for producing pearl cotton according to claim 1, characterized in that: Both mounting rods (7) are fixed with fixing rods (17) at their bottoms, and several third stirring rods (18) are fixed on the two fixing rods (17).
6. A mixing machine for producing pearl cotton according to claim 5, characterized in that: Both mounting rods (7) are provided with scraper rods (19) to prevent material from accumulating on the inner wall of the tank (1), and both mounting rods (7) are provided with a fastening component to make the scraper rods (19) fit tightly against the inner wall of the tank (1).
7. A mixing machine for producing pearl cotton according to claim 6, characterized in that: The tight-fitting assembly includes several connecting rods (20) and several springs (21). Each of the several third stirring rods (18) has an installation cavity (22). The fixing rod (17) has several through slots (23). The several through slots (23) are connected to the several corresponding installation cavities (22). The several connecting rods (20) are fixed on the scraper (19) and can slide through the several corresponding through slots (23) and extend into the installation cavity (22). The several springs (21) are respectively fixed on the inner wall of the several installation cavities (22), and the other end of the several springs (21) is respectively fixedly connected to the several corresponding connecting rods (20).