Extrusion granulation device for ASA (Acrylonitrile Styrene Acrylate) modified plastic

Abstract

The utility model discloses an extrusion granulation device for ASA modified plastics, and relates to the technical field of ASA modified plastics production, the extrusion granulation device comprises a fixed box and an extruder connected to the top of the fixed box, the top of the extruder is connected with a feeding shell, one side of the fixed box is connected with a fixed table, and the other side of the fixed table is connected with an extrusion device. According to the extrusion granulation device, the position of the pressing roller is adjusted by adjusting the connecting rod, so that the size of a granulation line is controlled, and the problems that the size of the granulation line is fixed and the size of produced particles is fixed due to the fact that the height of the pressing roller of the extrusion granulation device is fixed and the pressure borne by the granulation line is fixed are solved; according to the extrusion granulation device, the adjustment frame is matched with the adjustment roller, granulation lines with different sizes and thicknesses can be fixed, the problem that when different sizes of the granulation lines are set, the granulation box cannot fix the granulation lines to guarantee the stability during granulation is solved, and the practical performance of the extrusion granulation device is improved.

Description

Technical Field

[0001] This utility model relates to the field of ASA modified plastics production technology, specifically to an extrusion granulation device for ASA modified plastics. Background Technology

[0002] ASA modified plastics are engineering plastics containing ASA powder, AS resin, colorants, etc. Due to their good oxidation resistance and weather resistance, they are widely used in electronics, machinery and other fields. They often need to be extruded and granulated for packaging and storage.

[0003] Because the pressure roller height is reduced, the pressure on the granulation line increases, resulting in the granules being squeezed thinner or smaller in diameter; conversely, the height is increased. Currently, the fixed pressure roller height of the extrusion granulation device determines the fixed pressure on the granulation line, leading to a fixed size of the granulation line and thus a fixed size of the produced granules, which in turn results in poor applicability of the extrusion granulation device. Utility Model Content

[0004] To address the above problems, this utility model provides an extrusion granulation device for ASA modified plastics, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an extrusion granulation device for ASA modified plastics, comprising a fixed box and an extruder connected to the top of the fixed box, wherein a feeding shell is connected to the top of the extruder, a fixed platform is connected to one side of the fixed box, and a water storage shell is connected to the top of the fixed platform.

[0006] Two adjustment slots are provided on one side of the water storage shell, an adjustment block is connected to the top of the water storage shell, a screw is connected to the bottom of the adjustment block, the screw is located inside the adjustment slot, a limit frame is connected to one side of the adjustment block, and an indicator slot is provided on one side of the limit frame.

[0007] The adjusting block and the limiting frame are internally connected by a connecting rod. An indicator strip is connected to one side of the connecting rod. Several positioning grooves are opened on the outside of the connecting rod. A groove is opened on one side of both the adjusting block and the limiting frame. A locking block is provided in the groove and engages with the positioning groove.

[0008] Preferably, the adjusting block is installed on the top of the water storage shell by means of a screw and bolt, a handle is connected to one side of the connecting rod, and a pressure roller is connected to the outside of the connecting rod.

[0009] Preferably, the top of the water storage shell is connected to two mounting plates, and an active rotating roller is connected inside the mounting plate. One side of one of the mounting plates is connected to a first motor, and the output end of the first motor is connected to the active rotating roller via a transmission connection.

[0010] Preferably, a fixed base is connected to one side of the fixed platform, a support shell is connected to the top of the fixed base, and a controller is connected to one side of the support shell.

[0011] Preferably, a granulation box is connected to the top of the support shell, two fixing plates are connected to one side of the granulation box, and guide rollers are connected inside the fixing plates.

[0012] Preferably, a conveying roller is connected inside the granulation box, and a second motor is connected to one side of the granulation box, with the output end of the second motor being connected to the conveying roller for transmission.

[0013] Preferably, a pelletizer is connected inside the pelletizing box, and a third motor is connected to one side of the pelletizing box. The output end of the third motor is connected to the pelletizer for transmission.

[0014] Preferably, an adjusting frame is connected inside the granulation box, a fixed rod is connected to one side of the adjusting frame, an adjusting roller is connected to the outside of the fixed rod, a circular groove is opened on the top of the granulation box, a spring is connected to the inner bottom surface of the circular groove, and the top of the spring is connected to one side of the adjusting frame.

[0015] Preferably, the adjusting roller is positioned above the conveying roller, and the bottom of the granulation box is connected to a discharge shell.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The present applicant adjusts the position of the pressure roller by adjusting the connecting rod, thereby controlling the size of the granulation line. This allows different particle sizes to be produced according to requirements, solving the problem that the fixed height of the pressure roller in the extrusion granulation device determines the fixed pressure on the granulation line, resulting in a fixed size of the granulation line and thus a fixed particle size. This is beneficial to improving the applicability of the extrusion granulation device.

[0018] 2. This application can fix granulation lines of different sizes and thicknesses by using an adjustment frame and adjustment rollers, thereby ensuring the stability of the granulation line during pelletizing. This solves the problem that the pelletizing box cannot fix the granulation line to ensure the stability of pelletizing when the granulation line is set to different sizes, which is beneficial to improving the practical performance of the extrusion granulation device.

[0019] 3. This application, through the cooperation of the indicator groove and the indicator strip, can ensure the consistency of different connecting rods when adjusting them, thereby ensuring the accuracy of adjusting multiple pressure rollers and improving the working quality of the extrusion granulation device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the water storage shell structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the pressure roller structure of this utility model;

[0024] Figure 5 This is a partial structural schematic diagram of the present invention;

[0025] Figure 6 This is a cross-sectional view of the granulation box of this utility model;

[0026] Figure 7 This is a schematic diagram of the adjusting roller structure of this utility model.

[0027] The diagram shows the following components: 1. Fixed box; 2. Extruder; 3. Feeding shell; 4. Fixed platform; 5. Water storage shell; 6. Adjusting groove; 7. Adjusting block; 8. Screw; 9. Limiting frame; 10. Indicator groove; 11. Indicator strip; 12. Connecting rod; 13. Positioning groove; 14. Locking block; 15. Pressure roller; 16. Handle; 17. Mounting plate; 18. Drive roller; 19. First motor; 20. Fixed seat; 21. Support shell; 22. Controller; 23. Granulation box; 24. Fixed plate; 25. Guide roller; 26. Conveying roller; 27. Second motor; 28. Pelletizer; 29. ​​Third motor; 30. Adjusting frame; 31. Fixed rod; 32. Adjusting roller; 33. Spring; 34. Discharge shell. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0029] Please see Figures 1 to 7An extrusion granulation device for ASA modified plastics includes a fixed box 1 and an extruder 2 connected to the top of the fixed box 1. The extruder 2 is a twin-screw extruder, which is driven by a motor to rotate two screws in opposite directions. The heating system inside the extruder 2 works to transfer heat to the raw material. At the same time, the rotation of the twin screws generates extrusion and shearing action on the material, producing frictional heat. Under the combined action of external heating and internal frictional heat, the material temperature rises and gradually melts. The molten material moves forward under the push of the screws. Different components on the screws (such as kneading blocks and toothed elements) play their role. The kneading blocks achieve distribution mixing (so that the components are evenly distributed) and dispersion. Mixing (refining the size of the dispersed phase), the toothed element increases the surface area of ​​the material, promoting mixing and plasticization. During the mixing process, moisture, low-molecular-weight volatiles, etc. may be released. In the venting section, the screw element makes the material semi-filled, and the screw channel volume is large, which is conducive to surface renewal. In the metering section, the screw lead becomes smaller, the material fills the screw channel more, and pressure is built up. Under the action of pressure, the uniformly mixed material is extruded quantitatively, under constant pressure and temperature, and formed into the required product shape through different dies for subsequent pelleting. Extruder 2 is a known technology, and those skilled in the art can and should understand its specific functions and structure, so it will not be described in detail here.

[0030] It should be further clarified that the material extruded through the die is from the granulation line, rather than directly extruding plastic granules.

[0031] The top of the extruder 2 is connected to the feeding shell 3, and the side of the fixed box 1 is connected to the fixed platform 4. The top of the fixed platform 4 is connected to the water storage shell 5. Personnel feed the material into the interior of the extruder 2 through the feeding shell 3. The water storage shell 5 is filled with cooling water. When the extruder 2 extrudes the granulation line, the granulation line will first pass through the water storage shell 5 for cooling.

[0032] It should be noted that the water storage tank 5 is equipped with a drain outlet, and personnel can periodically replace the cooling water in the water storage tank 5.

[0033] Two adjustment grooves 6 are provided on one side of the water storage shell 5. An adjustment block 7 is connected to the top of the water storage shell 5, and a screw 8 is connected to the bottom of the adjustment block 7. The screw 8 is located inside the adjustment groove 6. A limit frame 9 is connected to one side of the adjustment block 7, and an indicator groove 10 is provided on one side of the limit frame 9. When the personnel adjust the pressure roller 15, they first adjust the position of the adjustment block 7.

[0034] Specifically, the screw 8 at the bottom of the adjusting block 7 will slide in the adjusting groove 6. Of course, in order to prevent the adjusting block 7 from rotating, it is slidably connected to the outer side of the water storage shell 5 through one side of the limiting frame 9. Therefore, the adjusting block 7 will move and adjust stably during adjustment. After moving to the appropriate position, the personnel fix the position of the adjusting block 7 by connecting bolts to the outside of the screw 8, so that the bolts cooperate with the screw 8 and abut against one side of the water storage shell 5.

[0035] At this time, the adjusting block 7 drives the pressure roller 15 to adjust to the appropriate position. Then, the personnel remove the locking block 14 from the positioning groove 13 and the recess. Next, the personnel hold the handle 16 and rotate the connecting rod 12, so that the connecting rod 12 rotates to adjust the height of the pressure roller 15. After the height of the pressure roller 15 is adjusted to the appropriate position, the personnel insert the locking block 14 into the recess and the positioning groove 13 outside the connecting rod 12 to position and fix the connecting rod 12.

[0036] It is important to note that when the connecting rod 12 rotates, it will cause the indicator strip 11 to rotate on one side of the limit frame 9. When the indicator strip 11 rotates, it cooperates with the indicator groove 10, which allows the personnel to know how much the connecting rod 12 has rotated. This allows the personnel to quickly adjust the other connecting rods 12 when they rotate, and the cooperation between the indicator strip 11 and the indicator groove 10 ensures that the adjustment amount of all connecting rods 12 and pressure rollers 15 is consistent.

[0037] This allows for the production of different particle sizes according to demand, solving the problem that the fixed height of the pressure roller 15 in the extrusion granulation device determines the fixed pressure on the granulation line, resulting in a fixed size of the granulation line and thus a fixed particle size. This is beneficial to improving the applicability of the extrusion granulation device.

[0038] The adjusting block 7 and the limiting frame 9 are internally connected by a connecting rod 12. An indicator strip 11 is connected to one side of the connecting rod 12. Several positioning grooves 13 are opened on the outside of the connecting rod 12. A groove is opened on one side of both the adjusting block 7 and the limiting frame 9. A locking block 14 is provided in the groove, and the locking block 14 is engaged with the positioning groove 13.

[0039] The adjusting block 7 is installed on the top of the water storage shell 5 by means of screw 8 and bolt. A handle 16 is connected to one side of the connecting rod 12. A pressure roller 15 is connected to the outside of the connecting rod 12. The granulation line extruded by the extruder 2 is set at the bottom of the pressure roller 15 closest to the extruder 2. Then the granulation line is set above the adjacent pressure roller 15. After this cyclic arrangement, the granulation line is set above the drive roller 18.

[0040] It is important to note that the granulation line should be arranged to pass under the first and last pressure rollers 15 so that the granulation line can be properly connected to the preceding and following processes.

[0041] After passing the active rotating roller 18, the granulation line comes above the guide roller 25 and enters the granulation box 23. After entering the granulation box 23, the granulation line will come between the conveying roller 26 and the adjusting roller 32. At this time, the arrangement of the entire granulation line is completed.

[0042] It should be noted that this setup process is only carried out after the extrusion granulation unit has started working. Once the granulation line is set up, it can automatically carry out the conveying operation without human intervention.

[0043] The top of the water storage shell 5 is connected to two mounting plates 17. The inside of the mounting plate 17 is connected to an active rotating roller 18. One side of one of the mounting plates 17 is connected to a first motor 19. The output end of the first motor 19 is connected to the active rotating roller 18 for transmission. The output end of the first motor 19 drives the active rotating roller 18 to rotate, thereby providing power guidance for the conveying of the granulation line.

[0044] A fixed base 20 is connected to one side of the fixed platform 4, and a support shell 21 is connected to the top of the fixed base 20. A controller 22 is connected to one side of the support shell 21. The controller 22 is used to control the working status of the internal components of the granulation box 23. A control cabinet is also provided on one side of the extruder 2 to control the working status of the extruder 2. Since the controller 22 and the control cabinet are both known technologies, those skilled in the art can and should understand their specific functions and structures, so they will not be described in detail here.

[0045] The top of the support shell 21 is connected to the granulation box 23, and two fixing plates 24 are connected to one side of the granulation box 23. The inside of the fixing plate 24 is connected to the guide roller 25.

[0046] The granulation box 23 is internally connected to a conveying roller 26. A second motor 27 is connected to one side of the granulation box 23. The output end of the second motor 27 is connected to the conveying roller 26. The output end of the second motor 27 drives the conveying roller 26 to rotate, so that the conveying roller 26, together with the adjusting roller 32, conveys the granulation line. At the same time, the output end of the third motor 29 drives the pelletizer 28 to rotate, so that the pelletizer 28, together with the conveying roller 26, performs pelletizing work on the granulation line.

[0047] It should be further explained that the rotation direction of the pelletizer 28 is opposite to that of the conveyor roller 26. In this way, the pelletizer 28 pelletizes the pellets from top to bottom. The pelletized plastic granules will be discharged through the discharge shell 34. A collection cylinder can be set below the discharge shell 34 so that the pelletized plastic granules will fall directly into the collection cylinder for collection.

[0048] A pelletizer 28 is connected inside the pelletizing box 23, and a third motor 29 is connected to one side of the pelletizing box 23. The output end of the third motor 29 is connected to the pelletizer 28 for transmission.

[0049] An adjusting frame 30 is connected inside the granulation box 23. A fixing rod 31 is connected to one side of the adjusting frame 30, and an adjusting roller 32 is connected to the outside of the fixing rod 31. A circular groove is opened on the top of the granulation box 23, and a spring 33 is connected to the inner bottom surface of the groove. The top of the spring 33 is connected to one side of the adjusting frame 30. When setting up the granulation line, the operator needs to manually pull the adjusting frame 30 to lift the adjusting roller 32. After the granulation line passes between the conveying roller 26 and the adjusting roller 32, the operator releases the adjusting frame 30, so that the adjusting roller 32 and the conveying roller 26 cooperate to position and convey the granulation line, and facilitate the pelletizer 28 to perform pelletizing work on the granulation line.

[0050] It should be further added that when the operator lifts the adjusting frame 30, the adjusting frame 30 will cause the spring 33 to stretch. At this time, the spring 33 will generate a force to resist the stretching. When the operator releases the adjusting frame 30, the spring 33 will cause the adjusting frame 30 to return to its original position and will cause the adjusting roller 32 to cooperate with the conveying roller 26 to clamp the granulation line. At the same time, it will not affect the normal input of the granulation line, because both the conveying roller 26 and the adjusting roller 32 can rotate.

[0051] The adjusting roller 32 is positioned above the conveying roller 26, and the bottom of the granulation box 23 is connected to the discharge shell 34.

[0052] When using this utility model:

[0053] First, the material is fed into the extruder 2 through the feeding shell 3, and the water storage shell 5 is filled with cooling water. When the extruder 2 extrudes the granulation line, the granulation line will first pass through the water storage shell 5 for cooling.

[0054] Secondly, when adjusting the pressure roller 15, the position of the adjusting block 7 is adjusted first. Specifically, the screw 8 at the bottom of the adjusting block 7 slides in the adjusting groove 6. To prevent the adjusting block 7 from rotating, it is slidably connected to the outer side of the water storage shell 5 through one side of the limiting frame 9. Therefore, the adjusting block 7 will move stably during adjustment. After moving to the appropriate position, the personnel connect bolts to the outside of the screw 8 so that the bolts cooperate with the screw 8 and abut against one side of the water storage shell 5, thereby fixing the position of the adjusting block 7. At this time, the adjusting block 7 drives the pressure roller 15 to be adjusted to the appropriate position. Then, the personnel remove the locking block 14 from the positioning groove 13 and the recess. Next, the personnel hold the handle 16 and rotate the connecting rod 12 so that the connecting rod 12 rotates to adjust the height of the pressure roller 15. After the height of the pressure roller 15 is adjusted to the appropriate position, the personnel insert the locking block 14 into the recess and the positioning groove 13 outside the connecting rod 12 to fix the connecting rod 12.

[0055] Then, when the connecting rod 12 rotates, it will drive the indicator strip 11 to rotate on one side of the limit frame 9. When the indicator strip 11 rotates, it cooperates with the indicator groove 10, so that the personnel can know how much the connecting rod 12 has rotated. In this way, the personnel can also quickly adjust the rotation of other connecting rods 12. And the cooperation between the indicator strip 11 and the indicator groove 10 ensures that the adjustment amount of all connecting rods 12 and pressure rollers 15 is consistent.

[0056] Finally, the granulation line extruded by the extruder 2 is positioned at the bottom of the pressure roller 15 closest to the extruder 2. The granulation line is then positioned above the adjacent pressure roller 15, and this arrangement is repeated until the granulation line is positioned above the drive roller 18. After passing the drive roller 18, the granulation line reaches the top of the guide roller 25 and enters the granulation box 23. Inside the granulation box 23, the granulation line comes between the conveying roller 26 and the adjusting roller 32. The output of the second motor 27 drives the conveying roller 26 to rotate, allowing the conveying roller 26 to work with the adjusting roller 32 to transport the granulation line. Simultaneously, the output of the third motor 29 drives the pelletizer 28 to rotate, allowing the pelletizer 28 to work with the conveying roller 26 to pelletize the granulation line.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion granulation apparatus for ASA modified plastics, comprising a fixed box (1) and an extruder (2) connected to the top of the fixed box (1), wherein a feeding shell (3) is connected to the top of the extruder (2), characterized in that: A fixed platform (4) is connected to one side of the fixed box (1), and a water storage shell (5) is connected to the top of the fixed platform (4). Two adjustment slots (6) are provided on one side of the water storage shell (5). An adjustment block (7) is connected to the top of the water storage shell (5). A screw (8) is connected to the bottom of the adjustment block (7). The screw (8) is located inside the adjustment slot (6). A limit frame (9) is connected to one side of the adjustment block (7). An indicator slot (10) is provided on one side of the limit frame (9). The adjusting block (7) and the limiting frame (9) are internally connected by a connecting rod (12). An indicator strip (11) is connected to one side of the connecting rod (12). Several positioning grooves (13) are opened on the outside of the connecting rod (12). A groove is opened on one side of both the adjusting block (7) and the limiting frame (9). A locking block (14) is provided in the groove, and the locking block (14) engages with the positioning groove (13).

2. The extrusion granulation apparatus for ASA modified plastics according to claim 1, characterized in that: The adjusting block (7) is installed on the top of the water storage shell (5) by means of a screw (8) and a bolt. A handle (16) is connected to one side of the connecting rod (12), and a pressure roller (15) is connected to the outside of the connecting rod (12).

3. The extrusion granulation apparatus for ASA modified plastics according to claim 1, characterized in that: The top of the water storage shell (5) is connected to two mounting plates (17), and an active rotating roller (18) is connected inside the mounting plate (17). One side of one of the mounting plates (17) is connected to a first motor (19), and the output end of the first motor (19) is connected to the active rotating roller (18) for transmission.

4. The extrusion granulation apparatus for ASA modified plastics according to claim 1, characterized in that: A fixed base (20) is connected to one side of the fixed platform (4), a support shell (21) is connected to the top of the fixed base (20), and a controller (22) is connected to one side of the support shell (21).

5. The extrusion granulation apparatus for ASA modified plastics according to claim 4, characterized in that: The top of the support shell (21) is connected to a granulation box (23), and two fixing plates (24) are connected to one side of the granulation box (23). A guide roller (25) is connected inside the fixing plate (24).

6. The extrusion granulation apparatus for ASA modified plastics according to claim 5, characterized in that: The granulation box (23) is internally connected to a conveying roller (26), and a second motor (27) is connected to one side of the granulation box (23). The output end of the second motor (27) is connected to the conveying roller (26) for transmission.

7. The extrusion granulation apparatus for ASA modified plastics according to claim 5, characterized in that: The pelletizing box (23) is internally connected to a pelletizer (28), and a third motor (29) is connected to one side of the pelletizing box (23). The output end of the third motor (29) is connected to the pelletizer (28) for transmission.

8. The extrusion granulation apparatus for ASA modified plastics according to claim 5, characterized in that: An adjusting frame (30) is connected inside the granulation box (23). A fixing rod (31) is connected to one side of the adjusting frame (30). An adjusting roller (32) is connected to the outside of the fixing rod (31). A circular groove is opened on the top of the granulation box (23). A spring (33) is connected to the inner bottom surface of the circular groove. The top of the spring (33) is connected to one side of the adjusting frame (30).

9. The extrusion granulation apparatus for ASA modified plastics according to claim 8, characterized in that: The adjusting roller (32) is positioned above the conveying roller (26), and the bottom of the granulation box (23) is connected to the discharge shell (34).

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