Master batch screening machine

Abstract

The utility model discloses a master batch screening machine which is characterized in that a plurality of filter plates I with filter holes with different diameters are arranged on a spiral conveyor to primarily screen master batches, a screening box is arranged below the filter plates I, and a filter plate II is arranged in the screening box to secondarily screen the master batches. In addition, the recycling channel is arranged at the lower end of the screening box, small master batches mixed in the recycling channel are sent back to the screening box of the previous stage to be screened again, and therefore the small master batches can be prevented from being mixed in large particles, and screening is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of screening, and more specifically to a masterbatch screening machine. Background Technology

[0002] Masterbatch is a concentrated material widely used in the plastics processing industry, typically composed of base resin, pigments or additives, and dispersants. It is designed in easily handled forms, such as granules or beads, for easy mixing with pure resin. Different applications have strict requirements on the particle size of masterbatch. Therefore, screening is necessary during masterbatch production, which involves the use of screening machines. Due to the small particle weight of masterbatch, conventional screening devices are difficult to effectively perform multi-stage screening, often resulting in smaller particles mixing with larger particles. Multiple screenings are required to reduce errors, leading to low screening efficiency.

[0003] Based on the above, the purpose of this utility model is to provide a masterbatch screening machine to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a masterbatch screening machine. This invention involves setting a filter box and an installation pipe on the housing, with several nozzles installed on the installation pipe. A water pump is then used to extract the dye from the filter box and send it back into the housing through the nozzles. A filter screen is installed inside the filter box to filter impurities from the dye. When the housing needs to be cleaned, high-pressure water jets are sprayed onto the inner wall of the housing through the water pump and nozzles to rinse the inner cavity. The rinsing angle can also be adjusted by driving the installation pipe to rotate, allowing for more thorough rinsing of the inner cavity.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a masterbatch screening machine, including a screw conveyor, wherein the screw conveyor is provided with a feed inlet and a plurality of filter plates, wherein the diameter of the filter holes of the plurality of filter plates gradually increases from one side of the feed inlet to the other side, a screening frame is provided at the lower end of the screw conveyor, wherein the screening frame is provided with screening boxes in number and position corresponding to the filter plates, wherein the height of the plurality of screening boxes gradually increases from the side near the feed inlet to the other side, wherein each screening box is provided with a filter plate and a stirring plate rotatably connected thereto, wherein the diameter of the filter holes of the plurality of filter plates gradually increases from one side of the feed inlet to the other side, wherein the screening box is provided with a discharge outlet and a recovery channel connected to the discharge outlet at one end, wherein the other end of the recovery channel is connected to an adjacent screening box in the direction near the feed inlet, and a drive mechanism for driving the plurality of stirring plates to rotate is provided on the screening frame.

[0006] By adopting the above technical solution, when masterbatch screening is required, the masterbatch is poured into the screw conveyor through the feed inlet, and then the screw conveyor is started to transport the masterbatch to the other side. During this process, the masterbatch will come into contact with several filter plates under the push of the screw conveyor. As the diameter of the filter holes on the filter plates gradually increases, the masterbatch will fall into the corresponding screening box. The stirring plate in the screening box will rotate under the drive mechanism and stir the masterbatch. The filter plate will perform secondary screening of the masterbatch, and the small particles of masterbatch mixed in will be sent back to the previous screening box through the recycling channel. The remaining masterbatch will be discharged from the discharge port by the stirring plate. This setting can prevent smaller masterbatch particles from being mixed with larger particles, making the screening more accurate.

[0007] The present invention is further configured such that a guide funnel is provided inside the screening box.

[0008] The present invention is further configured such that: the driving mechanism includes a plurality of rotating shafts with one end rotatably connected to the screening frame, the other end of the rotating shafts being fixedly connected to the stirring plate, a belt pulley transmission assembly being provided between two adjacent rotating shafts, a motor being fixedly connected to the screening frame, and the output shaft of the motor being fixedly connected to the rotating shaft.

[0009] The present invention is further configured such that: a door panel is rotatably connected to the screening box, and a door lock is provided on the door panel.

[0010] In summary, this utility model has the following beneficial effects:

[0011] This invention uses multiple filter plates with different filter hole diameters on a spiral conveyor to perform initial screening of a pair of masterbatches. Then, a screening box is set below the filter plates, and a second filter plate is set in the screening box to perform secondary screening of the masterbatches. A recycling channel is also set at the bottom of the screening box to send smaller masterbatches mixed in to the previous screening box for re-screening. This setup can prevent smaller masterbatches from being mixed with larger particles, making the screening more accurate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model patent. Figure 1 This shows the overall structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model patent. Figure 2 This shows the structure of the screening box.

[0014] In the diagram: 1. Screw conveyor; 2. Feed inlet; 3. Filter plate one; 4. Screening frame; 5. Screening box; 6. Filter plate two; 7. Mixing plate; 8. Discharge outlet; 9. Recycling channel; 10. Guide funnel; 11. Rotating shaft; 12. Belt pulley drive assembly; 13. Motor; 14. Door panel; 15. Door lock. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0016] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "provided with," "set up / connected," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] A masterbatch screening machine, such as Figures 1-2As shown, the system includes a screw conveyor 1, which has a feed inlet 2 and several filter plates 3. The diameter of the filter holes on the filter plates 3 gradually increases from one side of the feed inlet 2 to the other side. A screening frame 4 is fixedly connected to the lower end of the screw conveyor 1. Screening boxes 5, which are numbered and positioned to correspond to the filter plates 3, are fixedly connected to the screening frame 4. The screening boxes are connected to the screw conveyor. The height of the screening boxes 5 gradually increases from one side near the feed inlet 2 to the other side. Each screening box 5 has a filter plate 6 and a stirring plate 7 rotatably connected to it. The diameter of the filter holes on the filter plates 6 gradually increases from one side of the feed inlet 2 to the other side. The screening box 5 has a discharge outlet 8 and a recycling channel 9 with one end connected to it. The other end of the recycling channel 9 is connected to the adjacent screening box 5 in the direction near the feed inlet 2. The lower end of the discharge outlet 8 is flush with the filter plate 6. The screening frame 4 is equipped with a drive mechanism that drives the multiple stirring plates 7 to rotate.

[0020] Furthermore, a guide funnel 10 is fixedly connected inside the screening box 5.

[0021] Furthermore, the drive mechanism includes several rotating shafts 11 with one end rotatably connected to the screening frame 4, the other end of the rotating shaft 11 being fixedly connected to the stirring plate 7, and a belt pulley transmission assembly 12 being installed between two adjacent rotating shafts 11. A motor 13 is fixedly connected to the screening frame, and the output shaft of the motor 13 is fixedly connected to the rotating shaft 11.

[0022] Furthermore, a door panel is rotatably connected to the screening box 5, and a door lock is provided on the door panel. The door lock can be a bolt, with the head of the bolt abutting against the door panel and the bolt thread passing through the door panel and threadedly connected to the screening box.

[0023] Working principle: When masterbatch screening is required, the masterbatch is poured into the screw conveyor through the feed port 2. Then, the screw conveyor is started to transport the masterbatch to the other side. During this process, the masterbatch will gradually come into contact with several filter plates 3 under the push of the screw conveyor. As the diameter of the filter holes on the filter plates 3 gradually increases, the masterbatch will fall into the corresponding screening box 5 according to the diameter. The stirring plate 7 in the screening box 5 will rotate under the drive of the motor 13 and stir the masterbatch. The filter plate 6 will perform secondary screening of the masterbatch, and the small particles of masterbatch mixed in will be sent back to the previous screening box 5 through the recycling channel 9. The remaining masterbatch can be pushed out from the discharge port 8 after the door is opened after screening is completed by the stirring plate 7. This setting can prevent smaller masterbatch particles from being mixed with larger particles, making the screening more accurate.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A masterbatch screening machine, characterized in that: The system includes a screw conveyor (1), which is equipped with a feed inlet (2) and several filter plates (3). The diameter of the filter holes on the filter plates (3) gradually increases from one side of the feed inlet (2) to the other side. A screening frame (4) is provided at the lower end of the screw conveyor (1). Screening boxes (5) are provided on the screening frame (4) in number and position corresponding to the filter plates (3). The height of the screening boxes (5) gradually increases from the side closer to the feed inlet (2) to the other side. Each screening box (5) is equipped with a filter plate (6) and a stirring plate (7) rotatably connected to it. The diameter of the filter holes of the filter plates (6) gradually increases from one side of the feed inlet (2) to the other side. The screening box (5) is equipped with a discharge port (8) and a recycling channel (9) connected to it at one end. The other end of the recycling channel (9) is connected to the adjacent screening box (5) in the direction close to the feed inlet (2). The screening frame (4) is equipped with a drive mechanism that drives the multiple stirring plates (7) to rotate.

2. The masterbatch screening machine according to claim 1, characterized in that: The screening box (5) is equipped with a guide funnel (10).

3. The masterbatch screening machine according to claim 1, characterized in that: The driving mechanism includes several rotating shafts (11) with one end rotatably connected to the screening frame (4). The other end of the rotating shaft (11) is fixedly connected to the stirring plate (7). A belt pulley transmission assembly (12) is provided between two adjacent rotating shafts (11). A motor (13) is fixedly connected to the screening frame (4). The output shaft of the motor (13) is fixedly connected to the rotating shaft (11).

4. The masterbatch screening machine according to claim 1, characterized in that: A door panel (14) is rotatably connected to the screening box (5), and a door lock (15) is provided on the door panel.

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