Material premixing device for color masterbatch production
By using coaxially connected mixing and feeding components in the color masterbatch production device, and utilizing the coordinated movement of spiral conveyor blades and scrapers, the problem of raw material accumulation is solved, achieving uniform feeding and all-round mixing of raw materials, thus improving the mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO FUTURE CHEM CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-24
AI Technical Summary
The fixed feed inlet of traditional mixing devices makes it easy for raw materials to accumulate, affecting the premixing effect.
By coaxially connecting the mixing component and the feeding component, the motor drives the rotating shaft to rotate the spiral conveyor blades and the conveying guide tube, and the scraper removes the adsorbed material on the inner wall, so as to achieve uniform feeding and all-round mixing of raw materials.
It improves the uniformity and efficiency of raw material mixing, avoids raw material accumulation and sedimentation, and ensures the uniformity and quality of the premixing process.
Smart Images

Figure CN224544974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of color masterbatch production technology, specifically to a material premixing device for color masterbatch production. Background Technology
[0002] Color masterbatch is a new type of special colorant for polymer materials, also known as pigment preparation. It consists of three basic elements: pigment or dye, carrier, and additives. The pigment or dye determines the color; the carrier is the matrix of the masterbatch, generally selected from the same resin as the product to ensure compatibility; additives are added according to customer requirements, such as flame retardants, brighteners, and antibacterial agents. It has good dispersibility, higher tinting strength than the pigment itself, enabling better dispersion of pigments in the product, and is easy to use.
[0003] In the production process of color masterbatch, multiple raw materials need to be mixed and processed. However, traditional mixing devices often have fixed feed ports, which means that the raw materials are added to a single point when they are added, making it easy for the raw materials to accumulate in one place, thus affecting the premixing effect.
[0004] To address the aforementioned issues, we propose a material premixing device for color masterbatch production. Utility Model Content
[0005] To address the problems in the background art, this utility model provides a material premixing device for color masterbatch production.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: by coaxially connecting the stirring component and the feeding component, the spiral conveying blade and the conveying guide can be driven to rotate synchronously during the rotation of the motor-driven rotating shaft, thereby effectively enhancing the uniformity and quality of the raw materials being mixed and stirred.
[0007] A premixing device for color masterbatch production includes a mixing cylinder. A stirring assembly is located at the center of the inner side of the mixing cylinder. The stirring assembly includes a rotating shaft driven by a motor. A spiral conveying blade is installed at the bottom of the rotating shaft. Scrapers are located at the center of both ends of the rotating shaft, and rubber scrapers are installed on the outer sides of the scrapers, which are in close contact with the inner wall of the mixing cylinder. A feeding assembly is located at the upper inner side of the mixing cylinder. The feeding assembly includes a feeding hopper. A conveying conduit is located at the bottom of the feeding hopper, and a fixing ring is located around the bottom periphery of the conveying conduit. A turntable is connected to the top of the rotating shaft, and the fixing ring is fixedly installed at the center of the side end of the turntable.
[0008] Preferably, the hopper is fixedly installed at the top center of the mixing cylinder, and the top of the conveying conduit is movably connected to the bottom of the hopper.
[0009] Preferably, a support frame is provided at the upper end of the inner cavity of the mixing cylinder. The support frame is located at the upper end of the stirring assembly. A rotating body is movably installed in the middle of the inner side of the support frame. The rotating body is fixedly connected to the top of the rotating shaft. The turntable is fixedly installed in the middle of the upper end of the rotating body.
[0010] Preferably, a discharge pipe is provided on one side of the bottom end of the mixing cylinder.
[0011] Preferably, the bottom of the mixing cylinder is configured as a funnel structure, and the motor is fixedly installed at the middle of the bottom end of the mixing cylinder.
[0012] Preferably, the rotating shaft is fixedly connected to the scrapers on both sides by two sets of connecting rods.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this solution, the stirring assembly and the feeding assembly are coaxially connected. As the motor drives the rotating shaft, the spiral conveyor blades and the conveying conduit rotate simultaneously. The rotating shaft drives the spiral conveyor blades to move the mixed solution from the bottom of the mixing drum upwards, effectively turning the material and preventing sedimentation and clumping at the bottom. The rotating shaft also drives the conveying conduit at the top to rotate, allowing for the feeding of raw materials and improving the uniformity of material addition. This prevents materials from being added to one spot, which would affect the uniformity of mixing. Furthermore, a scraper rotates to scrape away adsorbed substances from the inner wall of the mixing drum, allowing the solution inside to move omnidirectionally and avoiding dead zones. This enhances the uniformity and efficiency of the entire premixing process. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a side sectional view of the stirring assembly in this utility model;
[0017] Figure 3 This is a schematic diagram of the support frame in this utility model.
[0018] In the diagram: 1. Mixing cylinder; 2. Rotating shaft; 3. Motor; 4. Spiral conveyor blade; 5. Scraper; 6. Connecting rod; 7. Support frame; 8. Rotating body; 9. Turntable; 10. Fixing ring; 11. Conveying conduit; 12. Discharge hopper; 13. Discharge pipe. Detailed Implementation
[0019] The technical solution in this application embodiment is to solve the problems of the background technology mentioned above. The overall idea is as follows: The main technical solution of this utility model is to connect the stirring component and the feeding component coaxially, so that when the motor 3 drives the rotating shaft 2 to rotate, the spiral conveying blade 4 and the conveying conduit 11 can be driven to rotate synchronously. The conveying conduit 11 rotates in a circular cycle, thereby realizing the rotational feeding of raw materials, thus effectively enhancing the uniformity of raw material feeding. At the same time, the rotation of the spiral conveying blade 4 can realize the stirring and turning of the mixed solution inside the mixing cylinder 1. In addition, the synchronous rotation of the scraper 5 prevents the raw materials from adhering to the inner wall of the mixing cylinder 1, thereby effectively enhancing the uniformity and quality of the mixing of raw materials.
[0020] Example: Refer to Figures 1-3 As shown, a premixing device for color masterbatch production in this embodiment includes a mixing cylinder 1. A stirring assembly is provided in the middle of the inner side of the mixing cylinder 1. The stirring assembly includes a rotating shaft 2, which is driven by a motor 3. The motor 3 is fixedly installed in the middle of the bottom end of the mixing cylinder 1. A spiral conveying blade 4 is installed at the bottom of the rotating shaft 2. Scrapers 5 are provided in the middle of both ends of the rotating shaft 2. Rubber scrapers are installed on the outer side of the scrapers 5, and the rubber scrapers are in contact with the inner wall of the mixing cylinder 1.
[0021] A feeding assembly is provided on the upper inner side of the mixing cylinder 1. The feeding assembly includes a feeding hopper 12. A conveying conduit 11 is provided at the bottom of the feeding hopper 12. A fixing ring 10 is provided on the outer periphery of the bottom of the conveying conduit 11. A turntable 9 is connected to the top of the rotating shaft 2. The fixing ring 10 is fixedly installed in the middle of the side end of the turntable 9.
[0022] In some examples, the hopper 12 is fixedly installed at the top center of the mixing cylinder 1, and the top of the conveying conduit 11 is movably connected to the bottom of the hopper 12, so that the conveying conduit 11 can rotate around the hopper 12.
[0023] In some examples, a support frame 7 is provided at the upper end of the inner cavity of the mixing cylinder 1. The support frame 7 is located at the upper end of the stirring assembly. A rotating body 8 is movably installed in the middle of the inner side of the support frame 7. The rotating body 8 is fixedly connected to the top of the rotating shaft 2. The turntable 9 is fixedly installed in the middle of the upper end of the rotating body 8. The support frame 7 mainly plays a role in stabilizing and supporting. When the motor 3 drives the rotating shaft 2 to rotate, it can synchronously drive the rotating body 8 and the turntable 9 to rotate, thereby causing the turntable 9 to drive the conveying conduit 11 to rotate. This allows the conveying conduit 11 to rotate and feed the raw materials, effectively enhancing the uniformity of raw material feeding and avoiding feeding the raw materials in one place, which would affect the uniformity of raw material mixing.
[0024] In some examples, a discharge pipe 13 is provided on one side of the bottom of the mixing cylinder 1 for discharging the mixed solution.
[0025] In some examples, the bottom of the mixing cylinder 1 is set as a funnel structure. The funnel structure allows the mixed solution to continue mixing to the bottom. Then, the mixing component is used to transport and turn the mixed solution, thereby realizing the sequential mixing and turning of the raw materials. This effectively avoids the raw materials from accumulating at the bottom of the mixing cylinder 1, which would cause precipitation and clumping.
[0026] In some examples, the rotating shaft 2 is fixedly connected to the scrapers 5 on both sides by two sets of connecting rods 6, which serve as a fixed connection. The connecting rod 6 located at the bottom contacts the bottom of the inner cavity of the mixing cylinder 1, so that the connecting rod 6 can stir and turn the raw material at the bottom of the inner cavity of the mixing cylinder 1 during rotation, so as to avoid the accumulation and clumping.
[0027] The working principle of this utility model is as follows:
[0028] During use, after the raw materials are fed into the hopper 12, they enter the conveying conduit 11 and are then fed into the bottom inner side of the mixing cylinder 1. At this time, the motor 3 drives the rotating shaft 2 to rotate, which in turn drives the spiral conveyor blade 4 to rotate. Under the rotation of the spiral conveyor blade 4, the mixed raw materials at the bottom of the mixing cylinder 1 are conveyed upward, thus achieving the function of turning the material. At the same time, the rotating shaft 2 rotates, which drives the rotating body 8 at the top to rotate. The rotating body 8 drives the turntable 9 to rotate, which in turn drives the conveying conduit 11 to rotate, allowing the conveying conduit 11 to rotate and discharge the material, thereby effectively improving the uniformity of the material discharge and preventing the raw materials from being fed into one place, which would affect the uniformity of the mixing.
[0029] In addition, while the rotating shaft 2 is rotating, it will also drive the scrapers 5 on both sides to rotate. The scrapers 5 can scrape the inner wall of the mixing cylinder 1 to prevent raw materials from adhering to the inner wall of the mixing cylinder 1 and accumulating into lumps.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A premixing device for materials used in the production of color masterbatch, characterized in that, The mixing cylinder (1) includes a stirring assembly located in the middle of its inner side. The stirring assembly includes a rotating shaft (2) driven by a motor (3). A spiral conveying blade (4) is installed at the bottom of the rotating shaft (2). Scrapers (5) are provided at the middle of both ends of the rotating shaft (2). Rubber scrapers are installed on the outer side of the scrapers (5) and the rubber scrapers are in close contact with the inner wall of the mixing cylinder (1). The mixing cylinder (1) is provided with a feeding assembly at the upper inner side. The feeding assembly includes a feeding hopper (12). The bottom of the feeding hopper (12) is provided with a conveying conduit (11). The bottom periphery of the conveying conduit (11) is provided with a fixing ring (10). The top of the rotating shaft (2) is connected to a turntable (9). The fixing ring (10) is fixedly installed in the middle of the side end of the turntable (9).
2. The premixing device for color masterbatch production according to claim 1, characterized in that, The feeding hopper (12) is fixedly installed at the top center of the mixing cylinder (1), and the top of the conveying conduit (11) is movably connected to the bottom of the feeding hopper (12).
3. The premixing device for color masterbatch production according to claim 2, characterized in that, The mixing cylinder (1) has a support frame (7) at the upper end of its inner cavity. The support frame (7) is located at the upper end of the stirring assembly. A rotating body (8) is movably installed in the middle of the inner side of the support frame (7). The rotating body (8) is fixedly connected to the top of the rotating shaft (2). The turntable (9) is fixedly installed in the middle of the upper end of the rotating body (8).
4. The premixing device for color masterbatch production according to claim 3, characterized in that, A discharge pipe (13) is provided on one side of the bottom end of the mixing cylinder (1).
5. The premixing device for color masterbatch production according to claim 4, characterized in that, The bottom of the mixing cylinder (1) is configured as a funnel structure, and the motor (3) is fixedly installed in the middle of the bottom end of the mixing cylinder (1).
6. The premixing device for color masterbatch production according to claim 5, characterized in that, The rotating shaft (2) is fixedly connected to the scrapers (5) on both sides by two sets of connecting rods (6).