A plastic master batch three-screw extrusion granulator

Abstract

The utility model discloses a kind of plastic master batch three screw extruding granulator, belong to plastic master batch granulating technical field, including granulator main body, the top of granulator main body is fixedly connected with mounting plate, the top center of mounting plate is fixedly connected with feeding hopper, the top center of mounting plate is equipped with drop chute, adjusting mechanism is provided on the mounting plate, the adjusting mechanism includes moving plate, the moving plate is slidably connected in the inside of mounting plate, the both sides of mounting plate are equipped with sliding slot, the sliding slot is connected with the inner chamber of mounting plate;Through the cooperation between above each device, when staff rotates bidirectional screw through handle, threaded block can be moved by connecting column and drive moving plate, so as to realize the adjustment of the size of feeding hopper bottom discharge port, reduce the possibility of granulator main body internal blockage due to too fast discharging speed, help to improve the production efficiency of extruding granulation.

Description

Technical Field

[0001] This utility model relates to the field of plastic masterbatch granulation technology, specifically a three-screw extrusion granulator for plastic masterbatch. Background Technology

[0002] Plastic masterbatch granulation is a process of processing plastic raw materials into uniform granules through mixing, melting, extrusion, and pelletizing. Specific steps include: raw material pretreatment, melt extrusion, die extrusion, cooling, pelletizing, screening, and packaging. This process can improve the processing performance of plastics, ensure uniform composition, facilitate transportation and subsequent molding processing, and is widely used in the production of modified, dyed, and functionalized masterbatches.

[0003] Upon investigation, a Chinese utility model patent discloses a plastic product extrusion granulator (publication number: CN220030832U), which includes a worktable and a frame disposed on one side of the worktable. A feeding cylinder is fixedly connected to the top of the worktable, and a feed cylinder is fixedly connected to the top of the feeding cylinder. The inside of the feeding cylinder is provided with an extrusion structure for conveying plastic products.

[0004] In the aforementioned patent, after the plastic raw material inside the feed cylinder enters the feed cylinder, the screw can transport the plastic raw material, allowing it to pass through the heating block and the discharge block, and finally form plastic masterbatch. However, the size of the discharge port at the bottom of the feed cylinder lacks effective control. In actual use, the discharge speed may be too fast, and the screw may not be able to transport the plastic raw material in time, which can easily cause blockage and reduce the production efficiency of extrusion granulation.

[0005] Therefore, this utility model provides a three-screw extruder granulator for plastic masterbatch to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a three-screw extruder for plastic masterbatch granulation, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a three-screw extrusion granulator for plastic masterbatch, comprising a granulator body, an mounting plate fixedly connected to the top of the granulator body, a feeding hopper fixedly connected to the center of the top of the mounting plate, a drop groove formed at the center of the top of the mounting plate, and an adjustment mechanism provided on the mounting plate.

[0010] The adjustment mechanism includes a movable plate that is slidably connected to the inside of a mounting plate. Slide grooves are provided on both sides of the mounting plate, and these grooves communicate with the inner cavity of the mounting plate. Connecting posts are fixedly connected to both sides of the movable plate, and these connecting posts are inserted into the slide grooves. A first mounting block is fixedly connected to one side of the mounting plate. A bidirectional screw is rotatably connected to the first mounting block, and a threaded block is screwed onto the side surface of the bidirectional screw. One side of the threaded block is fixedly connected to the end of one of the connecting posts furthest from the movable plate.

[0011] As a preferred technical solution of this application, the inner cavity of the feeding hopper is connected to the inner cavity of the granulator body through a drop trough, and a rotating handle is fixedly connected to one end of the bidirectional screw.

[0012] As a preferred technical solution of this application, the adjustment mechanism further includes a second mounting block, one side of which is fixedly connected to the side of the mounting plate away from the first mounting block. A limit rod is fixedly connected to the second mounting block, and a slider is slidably connected to the side surface of the limit rod. One side of the slider is fixedly connected to the end of another connecting post away from the moving plate.

[0013] As a preferred technical solution of this application, the top of the mounting plate is symmetrically connected with support plates, and the top ends of the two support plates are fixedly connected with a support ring, the inner wall of the support ring being in contact with the side surface of the feeding hopper.

[0014] As a preferred technical solution of this application, a label plate is fixedly connected to the top of the mounting plate, and a plurality of label slots are provided on one side of the label plate, and the plurality of label slots are distributed in a linear array on the label plate.

[0015] As a preferred technical solution of this application, an auxiliary groove is provided at the bottom of the inner wall of the mounting plate, a rotating shaft is fixedly connected inside the auxiliary groove, a roller is rotatably connected to the side surface of the rotating shaft, and the side surface of the roller is in contact with the bottom of the moving plate.

[0016] As a preferred technical solution of this application, a baffle is fixedly connected to one side of the movable plate, and a slot adapted to the baffle is opened on one side of the movable plate.

[0017] (III) Beneficial Effects

[0018] This utility model has a simple structure and is easy to use. By setting up a moving plate, connecting column, first mounting block, bidirectional screw, threaded block and rotating handle, when the operator rotates the bidirectional screw through the rotating handle, the threaded block can drive the moving plate to move through the connecting column, thereby realizing the adjustment of the size of the feeding port at the bottom of the feeding hopper. This reduces the possibility of blockage inside the granulator body due to excessive feeding speed and helps to improve the production efficiency of extrusion granulation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a three-screw extrusion granulator for plastic masterbatch.

[0020] Figure 2 This is a schematic diagram of the installation of the moving plate in a three-screw extruder granulator for plastic masterbatch.

[0021] Figure 3 A cross-section of the mounting plate in a three-screw extruder granulator for plastic masterbatch. Figure 1 ;

[0022] Figure 4 A cross-section of the mounting plate in a three-screw extruder granulator for plastic masterbatch. Figure 2 ;

[0023] Figure 5 for Figure 2 Enlarged view of point A in the image.

[0024] In the picture:

[0025] 1. Granulator body; 2. Mounting plate; 3. Feed hopper; 4. Moving plate; 5. Connecting column; 6. Slide chute; 7. Drop chute; 8. First mounting block; 9. Bidirectional screw; 10. Threaded block; 11. Rotary handle; 12. Second mounting block; 13. Limiting rod; 14. Sliding block; 15. Support plate; 16. Support ring; 17. Marking plate; 18. Auxiliary groove; 19. Roller; 20. Baffle; 21. Slot. Detailed Implementation

[0026] 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.

[0027] This utility model provides a three-screw extruder granulator for plastic masterbatch, such as... Figure 1 , Figure 2 and Figure 3 As shown, the granulator includes a granulator body 1, a mounting plate 2 is fixedly connected to the top of the granulator body 1, a feeding hopper 3 is fixedly connected to the top center of the mounting plate 2, a drop groove 7 is opened at the top center of the mounting plate 2, and an adjustment mechanism is provided on the mounting plate 2.

[0028] The adjustment mechanism includes a movable plate 4, which is slidably connected inside the mounting plate 2. Both sides of the mounting plate 2 are provided with sliding grooves 6, which are connected to the inner cavity of the mounting plate 2. Both sides of the movable plate 4 are fixedly connected with connecting posts 5, which are inserted into the sliding grooves 6. A first mounting block 8 is fixedly connected to one side of the mounting plate 2. A bidirectional screw 9 is rotatably connected to the first mounting block 8. A threaded block 10 is screwed onto the side surface of the bidirectional screw 9. One side of the threaded block 10 is fixedly connected to one end of one of the connecting posts 5 away from the movable plate 4.

[0029] The inner cavity of the feeding hopper 3 is connected to the inner cavity of the granulator body 1 through the drop trough 7, and a rotating handle 11 is fixedly connected to one end of the bidirectional screw 9.

[0030] The adjustment mechanism also includes a second mounting block 12. One side of the second mounting block 12 is fixedly connected to the side of the mounting plate 2 away from the first mounting block 8. A limit rod 13 is fixedly connected to the second mounting block 12. A slider 14 is slidably connected to the side surface of the limit rod 13. One side of the slider 14 is fixedly connected to the end of another connecting post 5 away from the moving plate 4.

[0031] After the plastic raw material is fed into the hopper 3, under the influence of gravity, it can enter the granulator body 1 through the discharge port and the drop trough 7 at the bottom of the hopper 3. When the operator rotates the bidirectional screw 9 by the handle 11, the threaded block 10 can slide on the side surface of the bidirectional screw 9 due to the thread engagement. When the threaded block 10 slides, it can drive the moving plate 4 to move through the connecting column 5. When the moving plate 4 moves, it can change the size of the discharge port at the bottom of the hopper 3. The limiting rod 13 and the slider 14 provide limiting and guiding effects for the moving plate 4, so that the moving plate 4 can move according to the preset trajectory, reducing the possibility of the moving plate 4 deviating and improving the stability of the moving plate 4. In addition, the granulator body 1 is equipped with three screw rods inside, driven by a motor on one side of the granulator body 1. This is existing technology and will not be described in detail here. Before using the granulator, the operator can rotate the threaded block 10 according to actual needs to adjust the size of the discharge port at the bottom of the hopper 3.

[0032] Furthermore, in order to improve the stability of the feeding hopper 3, such as... Figure 1 , Figure 2 and Figure 5 As shown, the top of the mounting plate 2 is symmetrically connected with support plates 15, and the top ends of the two support plates 15 are fixedly connected with a support ring 16. The inner wall of the support ring 16 is in contact with the side surface of the feeding hopper 3.

[0033] The top of the mounting plate 2 is fixedly connected to the label plate 17. Several label slots are opened on one side of the label plate 17, and the label slots are distributed in a linear array on the label plate 17.

[0034] The support ring 16 and the support plate 15 are used to provide support for the feeding hopper 3, which improves the stability of the feeding hopper 3. The marking plate 17 is located above the threaded block 10. The operator can judge the movement of the moving plate 4 by the alignment of the side of the threaded block 10 with the marking groove, so as to facilitate the operator to adjust the size of the bottom discharge port of the feeding hopper 3.

[0035] In order to improve the smoothness of the movement of the movable board 4, such as Figure 1 , Figure 2 and Figure 4 As shown, an auxiliary groove 18 is provided at the bottom of the inner wall of the mounting plate 2. A rotating shaft is fixedly connected inside the auxiliary groove 18. A roller 19 is rotatably connected to the side surface of the rotating shaft. The side surface of the roller 19 is in contact with the bottom of the movable plate 4.

[0036] A baffle 20 is fixedly connected to one side of the movable plate 4, and a slot 21 adapted to the baffle 20 is provided on one side of the movable plate 4.

[0037] When the movable plate 4 moves inside the mounting plate 2, the roller 19 will also rotate on the shaft due to friction, thus assisting the movable plate 4 in moving. This effectively reduces the friction when the movable plate 4 moves and improves the smoothness of the movement. The baffle 20 on each movable plate 4 is inserted into the slot 21 on another movable plate 4. The baffle 20 can effectively reduce the possibility of plastic material entering the interior of the mounting plate 2.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic master batch triple screw extrusion granulator comprising a granulator body (1) characterized in that: The top of the granulator body (1) is fixedly connected to an installation plate (2), and a feeding hopper (3) is fixedly connected to the center of the top of the installation plate (2). A drop groove (7) is opened at the center of the top of the installation plate (2), and an adjustment mechanism is provided on the installation plate (2). The adjustment mechanism includes a movable plate (4), which is slidably connected to the inside of the mounting plate (2). The mounting plate (2) has grooves (6) on both sides, which are connected to the inner cavity of the mounting plate (2). Connecting columns (5) are fixedly connected to both sides of the movable plate (4), which are inserted into the inside of the grooves (6). A first mounting block (8) is fixedly connected to one side of the mounting plate (2). A bidirectional screw (9) is rotatably connected to the first mounting block (8). A threaded block (10) is screwed onto the side surface of the bidirectional screw (9). One side of the threaded block (10) is fixedly connected to one end of the connecting column (5) away from the movable plate (4).

2. The plastic master batch triple screw extrusion granulator according to claim 1, characterized in that: The inner cavity of the feeding hopper (3) is connected to the inner cavity of the granulator body (1) through the drop trough (7), and one end of the bidirectional screw (9) is fixedly connected to a rotating handle (11).

3. The three-screw extruder granulator for plastic masterbatch according to claim 1, characterized in that: The adjustment mechanism also includes a second mounting block (12), one side of which is fixedly connected to the side of the mounting plate (2) away from the first mounting block (8). A limit rod (13) is fixedly connected to the second mounting block (12), and a slider (14) is slidably connected to the side surface of the limit rod (13). One side of the slider (14) is fixedly connected to the end of another connecting column (5) away from the moving plate (4).

4. The plastic master batch triple screw extrusion granulator according to claim 1, characterized in that: The top of the mounting plate (2) is symmetrically connected with support plates (15), and the top ends of the two support plates (15) are fixedly connected with a support ring (16). The inner wall of the support ring (16) is in contact with the side surface of the feeding hopper (3).

5. The plastic master batch triple screw extrusion granulator according to claim 1, characterized in that: The top of the mounting plate (2) is fixedly connected to an identification plate (17). A number of identification slots are provided on one side of the identification plate (17), and the identification slots are arranged in a linear array on the identification plate (17).

6. The plastic master batch triple screw extrusion granulator according to claim 1, characterized in that: An auxiliary groove (18) is provided at the bottom of the inner wall of the mounting plate (2). A rotating shaft is fixedly connected inside the auxiliary groove (18). A roller (19) is rotatably connected to the side surface of the rotating shaft. The side surface of the roller (19) is in contact with the bottom of the moving plate (4).

7. A plastic master batch triple screw extrusion granulator according to claim 6, characterized in that: A baffle (20) is fixedly connected to one side of the movable plate (4), and a slot (21) adapted to the baffle (20) is provided on one side of the movable plate (4).

Images