Co-rotating twin-screw extruder for PP plastic processing

Abstract

The utility model relates to the technical field of PP plastic processing, and discloses a co-rotating twin-screw extruder for PP plastic processing, which comprises a support rod, an extrusion box and a stabilizing plate, one side of the top of the extrusion box is provided with a feed inlet, and the output end of a second motor is connected with a cleaning brush. The installation groove is formed in the stabilizing plate, meanwhile, the first motor is assembled in the installation groove, the side edge of the heat dissipation groove is communicated with the installation groove and used for conducting heat dissipation work, and after the first motor works, the installation base can be driven to rotate to adjust the direction of the first telescopic rod and the overall direction above the first telescopic rod; after a first telescopic rod works, the height position of a fixing block can be driven to be adjusted, after a second motor works, a cleaning brush is driven to rotate, so that the cleaning brush can clean the inner wall of a feeding port, the first telescopic rod is started again to work to drive a first transverse plate to move out of the position of the feeding port, and the overall direction can be correspondingly adjusted; in this way, the overall cleaning capacity is well improved in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of PP plastic processing, in particular to a co-rotating twin-screw extruder used for PP plastic processing. Background Art

[0002] PP plastic, also known as polypropylene, is a polymer formed by the polyaddition reaction of propylene. Polypropylene has many excellent properties, including being non-toxic, odorless, tasteless, and light in density, making it one of the lightest types of all plastics. It is particularly stable to water, has extremely low water absorption, and has good formability and chemical resistance. Therefore, polypropylene is widely used in the manufacture of various daily necessities, industrial products, and medical devices.

[0003] In the process of PP plastic processing, it is necessary to extrude this type of material, so a twin-screw extruder is needed to complete this operation. The twin-screw extruder is developed based on the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in the molding processing of extruded products. However, when the raw materials are fed from the inlet, sometimes the raw materials stick to the inner wall. If this is not handled well, it will easily directly affect the subsequent feeding effect. Utility Model Content

[0004] The purpose of the utility model is to provide a co-rotating twin-screw extruder for PP plastic processing, so as to solve the problem proposed in the above background technology that when the raw materials are fed from the inlet, the raw materials sometimes stick to the inner wall. If this problem is not handled properly, it is easy to directly affect the subsequent feeding effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A co-rotating twin-screw extruder for PP plastic processing, comprising a support rod, an extrusion box, and a stabilizing plate, wherein a feed port is installed on one side of the top of the extrusion box, a mounting slot is provided in the stabilizing plate, a first motor is installed inside the mounting slot, a heat dissipation slot is connected to the side of the mounting slot, an output end of the first motor is connected to a mounting seat, a first telescopic rod is installed inside the mounting seat, a fixing block is installed at the top of the first telescopic rod, a connecting rod is installed at the side of the fixing block, a first horizontal plate is installed at the side of the connecting rod, a second motor is installed at the top of the first horizontal plate, and a cleaning brush is connected to the output end of the second motor.

[0006] Preferably, the mounting slots are connected to the interior of the heat dissipation slots, and the heat dissipation slots are evenly distributed in three groups on the side of the mounting slots.

[0007] Preferably, a discharge port is installed at the right side of the bottom of the extrusion box, and valves are installed inside the discharge port and the feed port.

[0008] Preferably, a first screw is assembled inside the extrusion box, a second screw is provided above the first screw, a working motor is installed on the right side of the extrusion box, and a transmission belt is connected to the outside of the output end of the working motor.

[0009] Preferably, a control panel is installed at the front end of the extrusion box, and a central processing unit is installed inside the control panel.

[0010] Preferably, a heating box is installed at an upper right side of the extrusion box, a heating component is installed inside the heating box, and an air supply port is installed at an upper right side of the heating box.

[0011] Preferably, the side of the air supply port is communicated with the interior of the heating box, a valve is installed inside the air supply port, and the heating components are evenly distributed inside the heating box.

[0012] Preferably, a fan is installed at the lower right side of the heating box, a guide tube is installed at the left side of the heating box, a solenoid valve is installed inside the guide tube, the tail end of the guide tube is connected to the interior of the extrusion box, and the other end of the guide tube is connected to the interior of the heating box.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the co-rotating twin-screw extruder for PP plastic processing not only improves the feed port cleaning capability, but also improves the raw material drying capability and convenience of the twin-screw extruder;

[0014] (1) The mounting groove is opened in the stabilizing plate, and the first motor is installed in the mounting groove. The side of the heat dissipation groove is connected to the mounting groove for heat dissipation. After the first motor works, the mounting seat can be driven to rotate and adjust the direction of the first telescopic rod and the upper body. After the first telescopic rod works, the height position of the fixed block can be adjusted. Therefore, when it is necessary to clean the inner wall of the feed port, the cleaning brush can be driven to rotate after the second motor works, so that the cleaning brush can clean the inner wall of the feed port. After the cleaning is completed, the first telescopic rod is started again to drive the first horizontal plate to move out of the position of the feed port, and the overall direction can be adjusted accordingly, thereby improving the overall cleaning ability during the work process;

[0015] (2) By installing the heating box at the upper right side of the extrusion box, and the heating components are evenly distributed inside the heating box, the air can be supplied when the fan is working. After the airflow is heated by the heating components, it is guided to the inside of the extrusion box through the guide pipe, so that a certain raw material drying ability is achieved during extrusion feeding;

[0016] (3) When the working motor is working, the first screw can be driven to rotate. Due to the connection transmission of the transmission belt, the first screw and the second screw can be driven to rotate synchronously. Therefore, after the first screw and the second screw work, the raw materials are transported and finally discharged at the position of the discharge port. In addition, a temperature and humidity sensor can be installed inside the extrusion box, thereby facilitating the drying process of the raw materials and improving a certain degree of convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a front view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the stabilizing plate of the present invention;

[0020] Figure 4 This is a schematic diagram of the front view structure of the cleaning brush of the present invention.

[0021] In the figure: 1. Support rod; 2. Extrusion box; 3. First screw; 4. Second screw; 5. Discharge port; 6. Working motor; 7. Transmission belt; 8. Fan; 9. Air supply port; 10. Heating component; 11. Heating box; 12. Guide pipe; 13. Solenoid valve; 14. Feed port; 15. First horizontal plate; 16. Connecting rod; 17. Fixed block; 18. First telescopic rod; 19. Mounting seat; 20. Stabilizing plate; 21. Control panel; 22. First motor; 23. Mounting slot; 24. Heat dissipation slot; 25. Cleaning brush; 26. Second motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4The utility model provides an embodiment: a co-rotating twin-screw extruder for PP plastic processing, comprising a support rod 1, an extrusion box 2, and a stabilizing plate 20. A feed port 14 is provided on one side of the top of the extrusion box 2. A mounting groove 23 is provided in the stabilizing plate 20. A first motor 22 is provided inside the mounting groove 23. The side of the mounting groove 23 is connected to a heat dissipation groove 24. The output end of the first motor 22 is connected to a mounting seat 19. A first telescopic rod 18 is provided inside the mounting seat 19. A fixing block 17 is installed at the top of the first telescopic rod 18. A connecting rod 16 is installed on the side of the fixing block 17. A first horizontal plate 15 is installed on the side of the connecting rod 16. A second motor 26 is installed on the top of the first horizontal plate 15. A cleaning brush 25 is connected to the output end of the second motor 26.

[0024] The interiors of the mounting slots 23 and the heat dissipation slots 24 are communicated with each other. The heat dissipation slots 24 are evenly distributed in three groups on the side of the mounting slot 23 .

[0025] A discharge port 5 is installed at the right side of the bottom of the extrusion box 2 , and valves are installed inside the discharge port 5 and the feed port 14 .

[0026] A first screw 3 is assembled inside the extrusion box 2 , a second screw 4 is provided above the first screw 3 , a working motor 6 is installed on the right side of the extrusion box 2 , and a transmission belt 7 is connected to the outside of the output end of the working motor 6 .

[0027] A control panel 21 is installed at the front end of the extrusion box 2 , and a central processing unit is assembled inside the control panel 21 .

[0028] A heating box 11 is installed at an upper right position of the extrusion box 2 , a heating assembly 10 is installed inside the heating box 11 , and an air supply port 9 is installed at an upper right position of the heating box 11 .

[0029] The side of the air supply port 9 is communicated with the interior of the heating box 11 . A valve is installed inside the air supply port 9 . The heating components 10 are evenly distributed inside the heating box 11 .

[0030] A fan 8 is installed at the lower right side of the heating box 11, and a guide pipe 12 is installed at the left side of the heating box 11. A solenoid valve 13 is installed inside the guide pipe 12. The tail end of the guide pipe 12 is connected to the interior of the extrusion box 2, and the other end of the guide pipe 12 is connected to the interior of the heating box 11.

[0031] Furthermore, a temperature and humidity sensor can be installed inside the extrusion box 2 to monitor the temperature or raw material humidity inside the extrusion box 2. The monitoring data is transmitted to the central processing unit in the control panel 21. Therefore, a signal transceiver module is also installed in the control panel 21 to facilitate data processing of the signal.

[0032] Working principle: First, feed at the position of the feed port 14 during operation, and then start the working motor 6 to drive the first screw 3 to rotate. Due to the connection transmission of the transmission belt 7, the first screw 3 and the second screw 4 can be driven to rotate synchronously. Therefore, after the first screw 3 and the second screw 4 work, the raw material is transported and finally discharged at the position of the discharge port 5. A temperature and humidity sensor can be installed inside the extrusion box 2 to facilitate the operation of starting the fan 8. After the end, the first motor 22 is started to drive the mounting seat 19 to rotate and adjust the first telescopic rod 18 and the overall direction above. After the first telescopic rod 18 works, the height position of the fixed block 17 can be driven to adjust. Therefore, when the inner wall of the feed port 14 needs to be cleaned, the cleaning brush 25 can be driven to rotate after the second motor 26 works, so that the cleaning brush 25 can clean the inner wall of the feed port 14. After the end, the first telescopic rod 18 is started again to drive the first cross plate 15 to move out of the position of the feed port 14, and the overall direction can be adjusted accordingly.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A co-rotating twin-screw extruder for PP plastic processing, comprising a support rod (1), an extrusion box (2), and a stabilizing plate (20), characterized in that: A feed port (14) is provided on one side of the top of the extrusion box (2), a mounting groove (23) is provided in the stabilizing plate (20), a first motor (22) is provided inside the mounting groove (23), a heat dissipation groove (24) is connected to the side of the mounting groove (23), an output end of the first motor (22) is connected to a mounting seat (19), a first telescopic rod (18) is provided inside the mounting seat (19), a fixing block (17) is provided at the top end of the first telescopic rod (18), a connecting rod (16) is provided at the side end of the fixing block (17), a first transverse plate (15) is provided at the side end of the connecting rod (16), a second motor (26) is provided at the top end of the first transverse plate (15), and a cleaning brush (25) is provided at the output end of the second motor (26).

2. A co-rotating twin-screw extruder for PP plastic processing according to claim 1, characterized in that: The interiors of the mounting groove (23) and the heat dissipation groove (24) are communicated with each other, and the heat dissipation grooves (24) are evenly distributed in three groups on the side of the mounting groove (23).

3. A co-rotating twin-screw extruder for PP plastic processing according to claim 1, characterized in that: A discharge port (5) is installed at the right side of the bottom of the extrusion box (2), and valves are installed inside the discharge port (5) and the feed port (14).

4. A co-rotating twin-screw extruder for PP plastic processing according to claim 1, characterized in that: The extrusion box (2) is internally equipped with a first screw (3), and a second screw (4) is provided above the first screw (3). A working motor (6) is installed on the right side of the extrusion box (2), and a transmission belt (7) is externally connected to the output end of the working motor (6).

5. A co-rotating twin-screw extruder for PP plastic processing according to claim 1, characterized in that: A control panel (21) is installed at the front end of the extrusion box (2), and a central processing unit is installed inside the control panel (21).

6. A co-rotating twin-screw extruder for PP plastic processing according to claim 1, characterized in that: A heating box (11) is installed at an upper right position of the extrusion box (2), a heating assembly (10) is installed inside the heating box (11), and an air supply port (9) is installed at an upper right position of the heating box (11).

7. A co-rotating twin-screw extruder for PP plastic processing according to claim 6, characterized in that: The side of the air supply port (9) is communicated with the interior of the heating box (11), a valve is installed inside the air supply port (9), and the heating components (10) are evenly distributed inside the heating box (11).

8. A co-rotating twin-screw extruder for PP plastic processing according to claim 6, characterized in that: A fan (8) is installed at a lower position on the right side of the heating box (11), a guide tube (12) is installed on the left side of the heating box (11), a solenoid valve (13) is installed inside the guide tube (12), the tail end of the guide tube (12) is connected to the interior of the extrusion box (2), and the other end of the guide tube (12) is connected to the interior of the heating box (11).

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