Master batch extruder

Abstract

The utility model provides a master batch extruder which comprises an extruder body and a rotating disc arranged at an extrusion opening of the extruder body, and a plurality of master batch forming positions aligned to the extrusion opening are uniformly distributed on the rotating disc in the circumferential direction; the center of the rotating disc is in transmission connection with a driving motor, a baffle is arranged on the side, away from the extrusion opening, of the top of the rotating disc and covers the master batch forming position, a primary cooling water tank is arranged on the lower side of the rotating disc, the lower side of the rotating disc is immersed in the primary cooling water tank, and a water inlet and a water outlet are formed in the two ends of the primary cooling water tank respectively. And the water inlet is aligned with a master batch forming position. The master batch forming device has the beneficial effects that the rotating disc provided with the master batch forming position is matched with the primary cooling water tank which is arranged on the lower side of the rotating disc and is provided with the water inlet and the water outlet, so that the technical problem that the conventional extruder is not provided with a device for cutting off strip-shaped materials and needs a subsequent process to cut off the strip-shaped materials is solved; and the process of directly cutting off the master batch on the extruder is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of masterbatch production, in particular to a masterbatch extruder. Background Art

[0002] A masterbatch extruder is a crucial piece of equipment in the plastics processing industry. It heats, plasticizes, and extrudes mixed plastic raw materials into continuous strands of defined shapes and sizes, known as masterbatches. These masterbatches are then used as the building blocks for the production of a variety of plastic products. During the masterbatch extrusion process, raw materials (such as resin pellets) are first mixed with additives such as colorants and fillers in a specific ratio. This mixture is then fed into the extruder's barrel, where it is heated and melted into a fluid state. The molten material is then propelled forward by the screw and extruded through a die to form the desired product shape.

[0003] Existing masterbatch extrusion technology is quite mature and can effectively control the consistency and quality of products. Extruder designs generally take into account high efficiency, energy saving, and easy maintenance. For example, a twin-screw structure is used to improve mixing efficiency and production capacity, and advanced control systems are used to achieve precise control of parameters such as temperature and speed, ensuring production stability and high product quality.

[0004] However, the masterbatch extruders commonly found on the market are not equipped with a dedicated device for cutting the continuous extruded strands. This means that after completing the basic molding process, additional cutting equipment or tools are required to cut the final product to a fixed length, which not only increases the overall complexity of the production line but also brings higher operating costs to the company. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a masterbatch extruder, which solves the technical problem that the prior extruder has no device for cutting strip materials and requires subsequent processes for cutting.

[0006] According to an embodiment of the present invention, a masterbatch extruder includes an extruder body and a rotating disk arranged at an extrusion port of the extruder body, wherein a plurality of masterbatch forming positions aligned with the extrusion port are uniformly distributed circumferentially on the rotating disk;

[0007] The central transmission of the rotating disk is connected to a driving motor, a baffle is provided on the top of the rotating disk away from the extrusion port, the baffle covers the masterbatch forming position, a primary cooling water tank is provided on the lower side of the rotating disk, the lower side of the rotating disk is immersed in the primary cooling water tank, a water inlet and a water outlet are respectively provided at both ends of the primary cooling water tank, and the water inlet is aligned with the masterbatch forming position.

[0008] The technical principle of the utility model is: after the extruder body extrude the material from the extrusion port, it directly enters the masterbatch forming position, and then the driving motor drives the rotating disk to rotate, and a shear force is formed through the extrusion port and the rotating disk to cut the material, and the material remaining in the masterbatch forming position forms a masterbatch.

[0009] The subsequent masterbatch molding stations are connected to the extrusion outlet in turn, and the above steps are repeated to form masterbatches. The formed masterbatches are naturally cooled in the masterbatch molding stations until the current masterbatch molding station turns to the primary cooling water tank, where they come into contact with the water in the primary cooling water tank for rapid water cooling. When the masterbatch molding station is aligned with the water inlet, the masterbatch therein is carried away from the masterbatch molding station by the water pressure of the water inlet.

[0010] Compared with the existing technology, the utility model has the following beneficial effects: by providing a rotating disk with a masterbatch forming position and a primary cooling water trough with a water inlet and a water outlet on the lower side of the rotating disk, it solves the technical problem that the existing extruder does not have a device for cutting strip materials and requires subsequent processes for cutting, and realizes the process of directly cutting the masterbatch on the extruder.

[0011] Furthermore, each of the masterbatch forming positions includes one or more through holes.

[0012] Furthermore, the baffle is provided with an exhaust pinhole aligned with the extrusion port, and each through-hole bucket corresponds to one exhaust pinhole.

[0013] Furthermore, the primary cooling water tank is provided with a water inlet whose inner wall at one end is in close contact with the rotating disk.

[0014] Furthermore, the water inlet is connected to a water pump.

[0015] Furthermore, a final cooling water tank is provided at the lower side of the primary cooling water tank, and a water outlet of the primary cooling water tank is provided at the bottom, the water outlet is directly aligned with the final cooling water tank, and the final cooling water tank is connected to a water pump.

[0016] Furthermore, an interception net is provided in the final cooling water tank, one end of the interception net is hinged to one end of the final cooling water tank, and the other end of the interception net is provided with a flange.

[0017] Furthermore, the rotating disk is formed by stacking a number of rotating sheets, all edges of the rotating sheets are provided with lugs, and the lugs between all the rotating sheets are fixed with bolts.

[0018] Furthermore, the rotating disk is provided with a support frame, and the driving motor and the baffle are both mounted on the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the masterbatch extruder of Example 1 of the present utility model.

[0020] Figure 2 This is a schematic diagram of the rotating disk structure of Example 1 of the present utility model.

[0021] Figure 3 for Figure 1 A partial enlarged view of part A.

[0022] Figure 4 This is a schematic diagram of the final cooling water tank structure of Example 2 of the present utility model.

[0023] Figure 5 This is a side view of the rotating disk of Example 3 of the present utility model.

[0024] Figure 6 This is a schematic diagram of the rotating disk structure of Example 3 of the present utility model.

[0025] In the above drawings: 100, extruder body; 110, extrusion port; 200, rotating disk; 201, support frame; 210, masterbatch molding position; 211, through hole; 220, drive motor; 230, baffle; 231, exhaust pinhole; 240, rotating sheet; 241, lug; 300, primary cooling water tank; 310, water inlet; 311, water pump; 320, water outlet; 330, final cooling water tank; 331, intercepting net; 332, flange. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] like Figure 1-3 The masterbatch extruder shown includes an extruder body 100 and a rotating disk 200 disposed at the extrusion port 110 of the extruder body 100 . A plurality of masterbatch forming positions 210 aligned with the extrusion port 110 are uniformly distributed circumferentially on the rotating disk 200 .

[0029] Specifically, the central transmission shaft of the rotating disk 200 is connected to the driving motor 220, and a baffle 230 is provided on the top of the rotating disk 200 away from the extrusion port 110. The baffle 230 covers the masterbatch forming position 210. The rotating disk 200 is provided with a support frame 201, and the driving motor 220 and the baffle 230 are both installed on the support frame 201 to form an overall supporting structure, wherein the rotating disk 200 is provided with a bearing seat on the transmission shaft, and is installed on the support frame 201 through the bearing seat, so that it can still be driven to rotate by the driving motor 220.

[0030] like Figure 2As shown, each masterbatch forming position 210 includes one or more through holes 211. In this embodiment, four through holes are used as an example. The rotating disk 200 with through holes 211 of different sizes and numbers can be replaced according to the required size of the masterbatch.

[0031] like Figure 3 As shown, the baffle 230 is aligned with the extrusion port 110 and is provided with an exhaust pinhole 231 . Each through hole 211 corresponds to an exhaust pinhole 231 . When the material is squeezed into the through hole 211 through the extrusion port 110 , the exhaust pinhole 231 discharges the air and moisture in the through hole 211 .

[0032] like Figure 1 As shown, a primary cooling water tank 300 is provided on the lower side of the rotating disk 200, and the lower side of the rotating disk 200 is immersed in the primary cooling water tank 300. A water inlet 310 and a water outlet 320 are provided at both ends of the primary cooling water tank 300 respectively. The water inlet 310 is connected to a water pump 311. The water inlet 310 is aligned with the masterbatch forming position 210, and the primary cooling water tank 300 is provided with an inner wall of one end of the water inlet 310 close to the rotating disk 200, so that when the water inlet 310 of the primary cooling water tank 300 needs to be filled with water, it needs to pass through the through hole 211 before water can enter. When the water flows through, the masterbatch in the through hole 211 will be brought out, thereby realizing the discharge of the masterbatch and at the same time being used for rapid water cooling of the masterbatch.

[0033] like Figure 1 As shown, a final cooling water tank 330 is further provided on the lower side of the primary cooling water tank 300. The water outlet 320 of the primary cooling water tank 300 is provided at the bottom, and the water outlet 320 is directly aligned with the final cooling water tank 330, so that the water in the primary cooling water tank 300 is connected to the masterbatch material and can directly fall into the final cooling water tank 330. The final cooling water tank 330 is connected to the water pump 311 to form a complete water cycle.

[0034] Example 2

[0035] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that an interception net 331 is provided in the final cooling water tank 330, and one end of the interception net 331 is hinged to one end of the final cooling water tank 330, and the other end of the interception net 331 is integrally formed with a flange 332, so that the masterbatch entering the final cooling water tank 330 will be in the interception net 331, and the operator only needs to pull up the interception net 331 through the flange 332 regularly to obtain the cooled masterbatch.

[0036] Example 3

[0037] like Figure 5-6As shown, the difference between this embodiment and embodiment 1 is that the rotating disk 200 includes a plurality of rotating sheets 240 stacked together, and the edges of all the rotating sheets 240 are provided with integrally formed lugs 241. The lugs 241 between all the rotating sheets 240 are fixed with bolts, so when the length of the masterbatch needs to be changed, the rotating sheets 240 can be increased or decreased.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A masterbatch extruder, characterized in that: It comprises an extruder body and a rotating disk arranged at the extrusion port of the extruder body, wherein a plurality of masterbatch forming positions aligned with the extrusion port are evenly distributed circumferentially on the rotating disk; The central transmission of the rotating disk is connected to a driving motor, a baffle is provided on the top of the rotating disk away from the extrusion port, the baffle covers the masterbatch forming position, a primary cooling water tank is provided on the lower side of the rotating disk, the lower side of the rotating disk is immersed in the primary cooling water tank, a water inlet and a water outlet are respectively provided at both ends of the primary cooling water tank, and the water inlet is aligned with the masterbatch forming position.

2. A masterbatch extruder according to claim 1, characterized in that: Each of the masterbatch forming positions includes one or more through holes.

3. A masterbatch extruder according to claim 2, characterized in that: The baffle is provided with an exhaust pinhole at the position aligned with the extrusion port, and each through-hole bucket corresponds to one exhaust pinhole.

4. A masterbatch extruder according to claim 1, characterized in that: The primary cooling water tank is provided with a water inlet, and the inner wall of one end thereof is in close contact with the rotating disk.

5. A masterbatch extruder according to claim 4, characterized in that: The water inlet is connected to a water pump.

6. A masterbatch extruder according to claim 5, characterized in that: A final cooling water tank is further provided at the lower side of the primary cooling water tank. The water outlet of the primary cooling water tank is provided at the bottom and is directly aligned with the final cooling water tank. The final cooling water tank is connected to a water pump.

7. A masterbatch extruder according to claim 6, characterized in that: An interception net is provided in the final cooling water tank, one end of the interception net is hinged to one end of the final cooling water tank, and the other end of the interception net is provided with a flange.

8. A masterbatch extruder according to claim 1, characterized in that: The rotating disk is formed by stacking a number of rotating sheets. Lugs are distributed on the edges of all the rotating sheets, and the lugs between all the rotating sheets are fixed by bolts.

9. A masterbatch extruder according to claim 1, characterized in that: The rotating disk is provided with a support frame, and the driving motor and the baffle are both mounted on the support frame.

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