Detachable blanking hopper structure for screw extruder

Abstract

The utility model discloses a detachable discharging hopper structure for a screw extruder, and relates to the technical field of extruders, the detachable discharging hopper structure comprises a discharging hopper body and an extruder body, and a connecting assembly used for cleaning the discharging hopper body is arranged between the discharging hopper body and the extruder body; the connecting assembly comprises a flexible connecting pipe arranged between the discharging hopper body and the feeding end of the extruder body, and the top end of the flexible connecting pipe is sleeved with a first hoop. Through cooperative arrangement of the flexible connecting pipe, the first hoop, the second hoop and other structures, when blockage occurs, the first hoop and the second hoop are loosened, and the blockage of the discharging hopper is avoided; the hopper can be cleaned after the flexible connecting pipe is taken down, and the problem that the working efficiency is reduced due to the fact that the hopper is difficult to clean when the phenomena such as blockage occur is avoided as much as possible.

Description

Technical Field

[0001] This application relates to the field of extruder technology, and in particular to a detachable hopper structure for screw extruders. Background Technology

[0002] Cold-feed screw extruders can feed unprocessed rubber compounds. Through screw extrusion, shearing, and mixing, the rubber compound is heated and plasticized, and then continuously extruded through the die. They mainly consist of a screw, barrel, die head, feeding mechanism, transmission device, and temperature control system. The length-to-diameter ratio of the screw in a cold-feed extruder is generally 8-18, resulting in high-quality extruded products. A hot-feed screw extruder, on the other hand, requires the feeding of pre-processed rubber compounds. Through screw extrusion, shearing, and mixing, the rubber compound is further plasticized and continuously extruded through an n-type die. The raw materials for screw extruders are various powders. To facilitate feeding, a hopper is installed at the feed inlet of the screw extruder, and the hopper is directly connected to a silo located in the upper structure.

[0003] Existing hoppers are generally directly connected to the feed inlet of the screw extruder. When blockages occur, it is difficult to clean the hopper, which reduces work efficiency. Utility Model Content

[0004] The purpose of this invention is to solve or at least alleviate the problem that existing hoppers are generally directly connected to the feed inlet of the screw extruder, making it difficult to clean the hopper when blockages occur, thus reducing work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detachable hopper structure for a screw extruder includes a hopper body and an extruder body. A connecting assembly for cleaning the hopper body is provided between the hopper body and the extruder body. The connecting assembly includes a flexible connecting pipe disposed between the feed end of the hopper body and the extruder body. A first clamp is fitted at the top end of the flexible connecting pipe, and a flexible extension pipe is fitted at the bottom end of the flexible connecting pipe. The flexible extension pipe is slidably connected to the flexible connecting pipe, and its other end is fitted with the feed end of the extruder body. Two second clamps are fitted on the flexible extension pipe.

[0007] By adopting the above technical solution, during use, the user first places the flexible connecting pipe between the hopper body and the extruder body. Then, the first clamp is moved between the flexible connecting pipe and the hopper body to connect them. Next, the flexible extension pipe is slid according to the distance between the flexible connecting pipe and the extruder body, so that one end of the flexible extension pipe is fitted onto the feed end of the extruder body. Then, the two second clamps are moved to connect the flexible extension pipe to the flexible connecting pipe and the extruder body respectively, connecting the hopper body to the feed end of the extruder body. When blockage occurs, the flexible connecting pipe can be removed by loosening the first and second clamps for cleaning. This minimizes the problem of difficulty in cleaning the hopper when blockage occurs, which reduces work efficiency.

[0008] Optionally, the hopper body is provided with an operation box, and connecting plates are fixedly connected to the four side walls of the operation box. The end of the connecting plate away from the operation box is fixedly connected to the inner wall of the hopper body. A motor is installed in the operation box, and a rotating shaft is fixedly connected to the output end of the motor. The end of the rotating shaft away from the motor passes through the operation box and is located at the bottom opening of the hopper body. A discharge plate is fixedly connected to the bottom side wall of the rotating shaft, and the end of the discharge plate away from the rotating shaft is in contact with the side wall of the hopper body.

[0009] By adopting the above technical solution, the discharge plate can be driven to rotate by starting the motor and rotating the shaft. This allows the discharge plate to continuously push the material accumulated at the bottom opening of the hopper body, preventing the material from piling up and blocking the hopper body, making it difficult for the material to be discharged and causing blockage of the hopper body.

[0010] Optionally, a conical block for preventing material accumulation is fixedly connected to the top of the operation box.

[0011] By adopting the above technical solution, the conical block can prevent materials from accumulating on the top of the operating box, thus preventing the materials from being completely discharged.

[0012] Optionally, ventilation pipes are fixedly connected to the side walls of both sides of the operation box, and the end of the ventilation pipe away from the operation box passes through the hopper body and forms a fixed connection.

[0013] By adopting the above technical solutions, the control box can be connected to the outside of the hopper body through the vent pipe, preventing the heat generated during motor operation from accumulating inside the control box and being unable to be discharged, thus affecting the service life of the motor.

[0014] Optionally, the connecting plate is triangular and the vent pipe is located below the connecting plate.

[0015] By adopting the above technical solutions, the triangular connecting plate can prevent materials from accumulating on the connecting plate and being difficult to discharge. At the same time, the vent pipe can be hidden under the connecting plate to prevent materials from falling onto the vent pipe.

[0016] Optionally, a first rotating rod is rotatably connected inside the operation box on one side of the motor. A transmission wheel is fixedly connected to the first rotating rod and the rotating shaft. A transmission belt is installed on the two transmission wheels. A second rotating rod is rotatably connected to one side wall inside the operation box. A first bevel gear is fixedly connected to the first rotating rod. A second bevel gear that meshes with the first bevel gear is fixedly connected to one end of the second rotating rod. A fan is sleeved on the second rotating rod.

[0017] By adopting the above technical solution, when the motor drives the rotating shaft to rotate the discharge plate, the first rotating rod can be rotated through the cooperation of the transmission wheel and the transmission belt. When the first rotating rod rotates, it will drive the first bevel gear to rotate, which will cause the second bevel gear meshing with it to rotate, thereby driving the second rotating rod to rotate. The fan sleeved on the second rotating rod will then rotate, allowing the air inside the operating box to circulate and improving the heat dissipation effect of the operating box.

[0018] Optionally, a filter cartridge may be detachably installed at the end of the vent pipe away from the operation box.

[0019] By adopting the above technical solutions, the filter cartridge can prevent dust and other debris from being sucked into the vent pipe during heat dissipation, thus preventing blockage of the vent pipe.

[0020] In summary, the beneficial effects of this application are as follows:

[0021] 1. This application utilizes a flexible connecting pipe, a first clamp, and a second clamp in a coordinated configuration. During use, the user first places the flexible connecting pipe between the hopper body and the extruder body. Then, the first clamp is moved between the flexible connecting pipe and the hopper body to connect them. Next, the flexible extension pipe is slid according to the distance between the flexible connecting pipe and the extruder body, so that one end of the flexible extension pipe is fitted onto the feed end of the extruder body. Then, the two second clamps are moved to connect the flexible extension pipe to the flexible connecting pipe and the extruder body respectively, thus connecting the hopper body to the feed end of the extruder body. When blockage occurs, the flexible connecting pipe can be removed by loosening the first and second clamps for cleaning. This minimizes the difficulty in cleaning the hopper when blockages occur, thus avoiding reduced work efficiency.

[0022] 2. By starting the motor, the rotating shaft drives the discharge plate to rotate, which can continuously push the material accumulated at the bottom opening of the hopper body, preventing the material from piling up and blocking the hopper body, making it difficult for the material to be discharged, and causing the hopper body to be prone to blockage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the hopper body of this utility model;

[0025] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0026] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Feed hopper body; 2. Extruder body; 3. Flexible connecting pipe; 4. First clamp; 5. Flexible extension pipe; 6. Second clamp; 7. Control box; 8. Connecting plate; 9. Motor; 10. Rotating shaft; 11. Discharge plate; 12. Conical block; 13. Vent pipe; 14. First rotating rod; 15. Transmission wheel; 16. Transmission belt; 17. Second rotating rod; 18. First bevel gear; 19. Second bevel gear; 20. Fan; 21. Filter cartridge. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] Please see Figure 1-3 A detachable hopper structure for a screw extruder includes a hopper body 1 and an extruder body 2 connected to a hopper at the top of the extruder body 2. A connecting assembly for cleaning the hopper body 1 is provided between the hopper body 1 and the extruder body 2. The connecting assembly includes a flexible connecting pipe 3, a first clamp 4, a flexible extension pipe 5, and a second clamp 6.

[0030] The flexible connecting pipe 3 is set between the feeding end of the hopper body 1 and the feeding end of the extruder body 2. The first clamp 4 is sleeved on the top end of the flexible connecting pipe 3 to connect and fix the top end of the flexible connecting pipe 3 to the bottom end of the hopper body 1. The flexible extension pipe 5 is sleeved on the bottom end of the flexible connecting pipe 3 and forms a sliding connection with the flexible connecting pipe 3. The end of the flexible extension pipe 5 away from the flexible connecting pipe 3 is sleeved with the feeding end of the extruder body 2. Two second clamps 6 are provided and sleeved on the flexible extension pipe 5 to connect and fix the two ends of the flexible extension pipe 5 to the feeding end of the extruder body 2 and the bottom end of the flexible connecting pipe 3, respectively.

[0031] In use, the user first places the flexible connecting pipe 3 between the hopper body 1 and the extruder body 2. Then, the first clamp 4 is moved between the flexible connecting pipe 3 and the hopper body 1 to connect them. Next, the flexible extension pipe 5 is slid according to the distance between the flexible connecting pipe 3 and the extruder body 2, so that one end of the flexible extension pipe 5 is fitted onto the feed end of the extruder body 2. Then, the two second clamps 6 are moved to connect the flexible extension pipe 5 to the flexible connecting pipe 3 and the extruder body 2 respectively, so that the hopper body 1 and the feed end of the extruder body 2 are connected. When blockage occurs, the flexible connecting pipe 3 can be removed by loosening the first clamp 4 and the second clamp 6 for cleaning. This minimizes the problem of difficulty in cleaning the hopper when blockage occurs, which reduces work efficiency.

[0032] Reference Figure 2 and Figure 3 An operation box 7 is provided inside the hopper body 1. Connecting plates 8 are fixedly connected to the four side walls of the operation box 7. The end of the connecting plate 8 away from the operation box 7 is fixedly connected to the inner wall of the hopper body 1. A motor 9 is installed inside the operation box 7. A rotating shaft 10 is fixedly connected to the output end of the motor 9. The end of the rotating shaft 10 away from the motor 9 passes through the operation box 7 and is located at the bottom opening of the hopper body 1. A discharge plate 11 is fixedly connected to the bottom side wall of the rotating shaft 10. The end of the discharge plate 11 away from the rotating shaft 10 is in contact with the side wall of the hopper body 1. By starting the motor 9, the rotating shaft 10 drives the discharge plate 11 to rotate, which can make the discharge plate 11 continuously push the material accumulated at the bottom opening of the hopper body 1, preventing the material from accumulating together and blocking the hopper body 1, making it difficult for the material to be discharged, and causing the hopper body 1 to become blocked.

[0033] Reference Figure 2 The top of the operation box 7 is fixedly connected to a conical block 12 to prevent material from accumulating. The conical block 12 can prevent material from accumulating on the top of the operation box 7, which would prevent the material from being completely discharged.

[0034] Reference Figure 2 Ventilation pipes 13 are fixedly connected to the side walls of the operation box 7. The end of the ventilation pipe 13 away from the operation box 7 passes through the hopper body 1 and forms a fixed connection. The ventilation pipe 13 can connect the operation box 7 to the outside of the hopper body 1, preventing the temperature generated by the motor 9 during operation from accumulating inside the operation box 7 and being unable to be discharged, thus affecting the service life of the motor 9.

[0035] Reference Figure 4 The connecting plate 8 is triangular and the vent pipe 13 is located below the connecting plate 8. The triangular connecting plate 8 can prevent materials from accumulating on the connecting plate 8 and being difficult to discharge. At the same time, the vent pipe 13 can be hidden below the connecting plate 8 to prevent materials from falling on the vent pipe 13.

[0036] Reference Figure 2 and Figure 3 Inside the operation box 7, a first rotating rod 14 is rotatably connected to one side of the motor 9. A transmission wheel 15 is fixedly connected to the first rotating rod 14 and the rotating shaft 10. A transmission belt 16 is installed on the two transmission wheels 15. A second rotating rod 17 is rotatably connected to one side wall inside the operation box 7. A first bevel gear 18 is fixedly connected to the first rotating rod 14. A second bevel gear 19 that meshes with the first bevel gear 18 is fixedly connected to one end of the second rotating rod 17. A fan 20 is sleeved on the second rotating rod 17 and is fixedly connected to the second rotating rod 17. When the motor 9 drives the rotating shaft 10 to rotate the discharge plate 11, the first rotating rod 14 can be rotated through the cooperation of the transmission wheel 15 and the transmission belt 16. When the first rotating rod 14 rotates, it will drive the first bevel gear 18 to rotate, which will cause the second bevel gear 19 that meshes with it to rotate, thereby driving the second rotating rod 17 to rotate. This causes the fan 20 sleeved on the second rotating rod 17 to rotate as well, allowing air circulation inside the operation box 7 and improving the heat dissipation effect of the operation box 7.

[0037] Reference Figure 2 A filter cartridge 21 can be detachably installed at the end of the vent pipe 13 away from the operation box 7. The filter cartridge 21 can prevent dust and other debris from being sucked into the vent pipe 13 during heat dissipation, thus preventing the vent pipe 13 from becoming blocked.

[0038] The implementation principle of this application is as follows: In use, the user first places the flexible connecting pipe 3 between the hopper body 1 and the extruder body 2. Then, the first clamp 4 is moved between the flexible connecting pipe 3 and the hopper body 1 to connect them. Next, the flexible extension pipe 5 is slid according to the distance between the flexible connecting pipe 3 and the extruder body 2, so that one end of the flexible extension pipe 5 is fitted onto the feed end of the extruder body 2. Then, the two second clamps 6 are moved to connect the flexible extension pipe 5 to the flexible connecting pipe 3 and the extruder body 2 respectively, so that the feed end of the hopper body 2 is connected. The hopper body 1 is connected to the feed end of the extruder body 2. Then, the motor 9 is started to make the rotating shaft 10 drive the discharge plate 11 to rotate. This allows the discharge plate 11 to continuously push the material accumulated at the bottom opening of the hopper body 1, preventing the material from accumulating and being difficult to discharge, and reducing the probability of clogging of the hopper body 1. When clogging occurs, the flexible connecting pipe 3 can be removed by loosening the first clamp 4 and the second clamp 6, which can then be cleaned. This avoids the problem of difficulty in cleaning the hopper when clogging occurs, which would reduce work efficiency.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable hopper structure for a screw extruder, comprising a hopper body (1) and an extruder body (2), wherein a connecting assembly for cleaning the hopper body (1) is provided between the hopper body (1) and the extruder body (2), characterized in that: The connecting assembly includes a flexible connecting pipe (3) disposed between the hopper body (1) and the feed end of the extruder body (2). A first clamp (4) is sleeved on the top end of the flexible connecting pipe (3), and a flexible extension pipe (5) is sleeved on the bottom end of the flexible connecting pipe (3). The flexible extension pipe (5) is slidably connected to the flexible connecting pipe (3) and its other end is sleeved with the feed end of the extruder body (2). Two second clamps (6) are sleeved on the flexible extension pipe (5).

2. The detachable hopper structure for a screw extruder according to claim 1, characterized in that: The hopper body (1) is provided with an operation box (7). The four side walls of the operation box (7) are fixedly connected with connecting plates (8). The end of the connecting plate (8) away from the operation box (7) is fixedly connected to the inner wall of the hopper body (1). The operation box (7) is equipped with a motor (9). The output end of the motor (9) is fixedly connected to a rotating shaft (10). The end of the rotating shaft (10) away from the motor (9) passes through the operation box (7) and is located at the bottom opening of the hopper body (1). The bottom side wall of the rotating shaft (10) is fixedly connected with a discharge plate (11). The end of the discharge plate (11) away from the rotating shaft (10) is in contact with the side wall of the hopper body (1).

3. The detachable hopper structure for a screw extruder according to claim 2, characterized in that: The top of the operation box (7) is fixedly connected to a conical block (12) for preventing material accumulation.

4. The detachable hopper structure for a screw extruder according to claim 3, characterized in that: The operation box (7) has air pipes (13) fixedly connected to the side walls on both sides. The end of the air pipe (13) away from the operation box (7) passes through the hopper body (1) and forms a fixed connection.

5. The detachable hopper structure for a screw extruder according to claim 4, characterized in that: The connecting plate (8) is triangular and the vent pipe (13) is located below the connecting plate (8).

6. The detachable hopper structure for a screw extruder according to claim 5, characterized in that: The operation box (7) is rotatably connected to a first rotating rod (14) on one side of the motor (9). The first rotating rod (14) is fixedly connected to a transmission wheel (15) on the rotating shaft (10). A transmission belt (16) is installed on the two transmission wheels (15).

7. The detachable hopper structure for a screw extruder according to claim 6, characterized in that: The operation box (7) has a second rotating rod (17) rotatably connected to one side wall inside. A first bevel gear (18) is fixedly connected to the first rotating rod (14). A second bevel gear (19) meshing with the first bevel gear (18) is fixedly connected to one end of the second rotating rod (17). A fan (20) is sleeved on the second rotating rod (17).

8. The detachable hopper structure for a screw extruder according to claim 7, characterized in that: A filter cartridge (21) can be detachably installed at the end of the vent pipe (13) away from the operation box (7).

Images