Internal mixer docking device

Abstract

This application belongs to the field of plastics manufacturing technology, specifically a docking device for an internal mixer, comprising a connecting pipe, a flange pair, a vibration device, and a radial-axial dual buffer. The radial-axial dual buffer is disposed between the two flanges of the flange pair, the flange pair engages with the end of the connecting pipe, and the vibration device acts between the two ends of the connecting pipe. This application utilizes the vibration device, the radial-axial dual buffer, and the flange to design a docking device for an internal mixer, solving the problem of preventing material from adhering to the inner wall of the feed pipe and causing blockage during the process of feeding the internal mixer from a high-speed mixer.

Description

Technical Field

[0001] The present application belongs to the technical field of plastic production, and specifically relates to a docking device for an internal mixer. Background Art

[0002] In the plastics manufacturing industry, internal mixers mostly use manual feeding, and the dust at the feeding port is relatively large. If this continues for a long time, it will cause serious harm to the body of the feeding personnel. In addition, manual feeding is labor-intensive, and long-term high-intensity work can easily make operators lose their minds, resulting in serious consequences such as feeding the wrong materials.

[0003] Therefore, it is necessary to design a high-speed mixer equipped with a discharge valve to feed the internal mixer. However, since the function of the internal mixer is to melt the particles of two or more materials mixed by the high-speed mixer together, the particles of the mixed materials have a certain viscosity and are easy to stick to the inner wall of the feeding pipe, thereby causing the pipeline to be blocked. Therefore, it is necessary to design an internal mixer docking device that can prevent the material from sticking to the inner wall of the pipeline and causing blockage, which is used to dock the discharge outlet of the discharge valve. Summary of the Invention

[0004] The purpose of this application is to address the shortcomings of the existing technology and design a mixer docking device by using a vibration device in conjunction with a radial and axial double buffer and a flange, which solves the problem of how to prevent materials from sticking to the inner wall of the feeding pipe and causing blockage during the feeding process of the high-speed mixer to the mixer.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A docking device for an internal mixer includes a connecting pipe, a flange pair, a vibration device, and a radial-axial double buffer. The radial-axial double buffer is arranged between the two flange plates of the flange pair. The flange pair cooperates with the end of the connecting pipe, and the vibration device acts between the two ends of the connecting pipe.

[0007] Preferably, the radial-axial double buffer includes a sealing rubber ring, a connecting threaded tube, and a bolt. The shape and size of the inner ring of the sealing rubber ring are equal to the shape and size of the inner cross-section of the connecting tube. A connecting threaded tube is radially provided on the sealing rubber ring. The connecting threaded tube is circumferentially arrayed around the inner ring of the sealing rubber ring. The shape and size of the outer cross-section of the connecting threaded tube are equal to the shape and size of the connecting hole on the flange. The connecting threaded tube includes a rubber layer and a carbide layer. The rubber layer is fixedly sleeved on the outer surface of the carbide layer. The carbide layer is provided with an internal thread that engages with the two ends of the bolt. The outer surface between the two ends of the connecting threaded tube is fixedly connected to the sealing rubber ring. The distance between the end of the connecting threaded tube and the end face of the sealing rubber ring on the same side of the sealing rubber ring is less than the thickness of the flange.

[0008] Preferably, the vibration device is a vibration motor, and the vibration motor is arranged on the outer surface between the two ends of the connecting pipe.

[0009] Preferably, the vibration device is an air blowing device, and the area between the two ends of the connecting pipe is within the effective range of the air flow ejected by the air blowing device.

[0010] Preferably, it also includes an air pipe, an air pump, and a PLC control system. One end of the air pipe faces the outer surface between the two ends of the connecting pipe. The two ends of the connecting pipe are within the range of the air flow ejected in the air pipe. The blowing end of the blowing device is connected to the other end of the air pipe. The air flow output end of the air pump is connected to the end of the air pipe facing away from the connecting pipe through a solenoid valve. The signal output end of the PLC control system is connected to the solenoid valve.

[0011] Preferably, the outer surface between the two ends of the connecting tube is wrapped with a soft layer, the two ends of the air pipe are fixedly connected to the soft layer, and the end of the air pipe facing away from the air pump is connected to the gap formed between the soft layer and the outer surface of the connecting tube.

[0012] Preferably, the distance between the end of the connecting threaded tube and the end face of the sealing rubber ring on the same side of the sealing rubber ring is equal to four-fifths of the thickness of the flange, and the length of the connecting threaded tube is greater than the sum of the thicknesses of the two flanges.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This application adopts a vibration device in conjunction with radial and axial double buffers and flanges to design an internal mixer docking device, which solves the problem of how to prevent materials from sticking to the inner wall of the feeding pipe and causing blockage during the process of high-speed mixer feeding the internal mixer.

[0015] 2. In the present application, the bolts lock the two flanges at both ends of the carbide layer through nuts. The extrusion force generated by the rotation of the nut on the bolt acts on the carbide layer, not on the rubber layer. Therefore, the vibration device acts on the connecting pipe, causing the connecting pipe to vibrate. Due to the presence of the sealing rubber ring and the rubber layer, the locking bolts of the two flanges locked on each flange pair will not loosen. When the flange undergoes radial runout under the action of the vibration device, the rubber layer acts as a buffer, and when the flange undergoes axial runout under the action of the vibration device, the sealing rubber ring acts as a buffer.

[0016] 3. This application controls the flow rate of the solenoid valve through a PLC control system, thereby controlling the output speed and frequency of the airflow, so that the frequency of vibration can be adjusted according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure in which airflow is used as the vibration mode in this application;

[0018] Figure 2 It is a schematic diagram of the structure of the radial and axial double buffers and flanges;

[0019] Figure 3 It is a structural diagram of connecting threaded pipes;

[0020] Figure 4 This is the connection diagram between the flange and the sealing rubber ring;

[0021] Figure 5 This is a schematic diagram of the structure in which a vibration motor is used as the vibration mode in this application.

[0022] Among them: 1. Connecting pipe; 2. Sealing rubber ring; 3. Bolt; 4. Rubber layer; 5. Carbide layer; 6. Flange; 7. Vibrating motor; 8. Air pump; 9. Air pipe; 10. Soft layer; 11. Connecting hole; 12. Internal mixer; 13. High-speed mixer. DETAILED DESCRIPTION

[0023] See also Figure 1-5 A mixer docking device includes a connecting pipe 1, a flange pair, a vibration device, and a radial-axial double buffer. The radial-axial double buffer is arranged between the two flange plates 6 of the flange pair. The flange pair cooperates with the end of the connecting pipe, and the vibration device acts between the two ends of the connecting pipe.

[0024] In this embodiment, when in use, one end of the connecting pipe 1 is connected to the feed port of the internal mixer 12 through a flange pair, and then the other end of the connecting pipe 1 is connected to the output end of the discharge valve of the high-speed mixer 13 through another flange pair; thereafter, when loading, a vibration device is used to act between the two ends of the connecting pipe 1. Since a radial and axial double buffer is provided between the two flange plates 6 on each flange pair, the connection between the connecting pipe 1 and the internal mixer 12 will not be loosened during the vibration of the connecting pipe 1 by the vibration device. Similarly, the connection between the connecting pipe 1 and the output end of the discharge valve of the high-speed mixer 12 will not be loosened, and the vibration of the connecting pipe 1 will not affect the high-speed mixer 13 and the internal mixer 12. The vibration device applies vibration between the two ends of the connecting pipe 1 so that the particles of the material on the inner wall of the connecting pipe 1 are shaken off and leave the inner wall of the connecting pipe 1, thereby preventing the material from sticking to the inner wall of the feeding pipe and causing blockage.

[0025] As a preferred method, Figure 4 As shown, the radial-axial double buffer includes a sealing rubber ring 2, a connecting threaded tube, and a bolt 3. The shape and size of the inner ring of the sealing rubber ring 2 are equal to the shape and size of the inner cross-section of the connecting tube 1. A connecting threaded tube is radially provided on the sealing rubber ring 2. The connecting threaded tube is circumferentially arrayed around the inner ring of the sealing rubber ring 2. The shape and size of the outer cross-section of the connecting threaded tube is equal to the shape and size of the connecting hole 11 on the flange 6. The connecting threaded tube includes a rubber layer 4 and a hard alloy layer 5. The rubber layer 4 is fixedly sleeved on the outer surface of the hard alloy layer 5. The hard alloy layer 5 is provided with an internal thread that engages with the two ends of the bolt 3. The outer surface between the two ends of the connecting threaded tube is fixedly connected to the sealing rubber ring 2. The distance between the end of the connecting threaded tube and the end face of the sealing rubber ring 2 on the same side of the sealing rubber ring 2 is less than the thickness of the flange 6. After such arrangement, the bolt 3 locks the two flanges 6 at both ends of the carbide layer 5 through the nut. The extrusion force generated by the rotation of the nut on the bolt 3 acts on the carbide layer 5, rather than on the rubber layer 4. Therefore, the vibration device acts on the connecting pipe 1, causing the connecting pipe 1 to vibrate. Due to the presence of the sealing rubber ring 2 and the rubber layer 4, the locking bolts of the two flanges locked on each flange pair will not loosen. When the flange 6 undergoes radial runout under the action of the vibration device, the rubber layer 4 acts as a buffer, and when the flange 6 undergoes axial runout under the action of the vibration device, the sealing rubber ring 2 acts as a buffer.

[0026] As a preferred embodiment, the vibration device is a vibration motor 7, which is provided on the outer surface between the two ends of the connecting tube 1. This method of using the vibration motor 7 is relatively simple, reduces the difficulty of the manufacturing process of the present application, and thus reduces the manufacturing cost.

[0027] As a preferred embodiment, the vibrating device is an air blowing device, and the air flow ejected by the air blowing device is within the range of the connecting tube 1. The air flow is used to vibrate the connecting tube 1, which is easier to adjust and softer than the vibration motor 7.

[0028] As a preferred embodiment, it also includes an air pipe 9, an air pump 8, and a PLC control system. One end of the air pipe 9 faces the outer surface between the two ends of the connecting pipe 1. The two ends of the connecting pipe 1 are within the range of the air flow ejected from the air pipe 9. The blowing end of the blowing device is connected to the other end of the air pipe 9. The air flow output end of the air pump 8 is connected to the end of the air pipe 9 facing away from the connecting pipe through a solenoid valve. The signal output end of the PLC control system is connected to the solenoid valve. After such a setting, the flow rate of the solenoid valve is controlled by the PLC control system, thereby controlling the output speed and frequency of the air flow, so that the frequency of vibration can be adjusted according to actual conditions. The air pump 8 can be fixedly placed on the ground.

[0029] As a preferred embodiment, the outer surface between the two ends of the connecting tube 1 is wrapped with a soft layer 10, and the two ends of the air tube 9 are fixedly connected to the soft layer 10. The end of the air tube 9 facing away from the air pump communicates with the gap formed between the soft layer 10 and the outer surface of the connecting tube 1. This arrangement ensures that the end of the air tube 9 facing the connecting tube 1 is relatively fixed to the connecting tube 1, preventing the air tube 9 from being separated from the connecting tube 1 due to recoil after the gas is ejected from the air tube 9, thereby preventing the air tube 9 from vibrating the connecting tube 1 due to the recoil effect.

[0030] As a preferred embodiment, the distance between the end of the connecting threaded pipe and the end face of the sealing rubber ring 2 on the same side of the sealing rubber ring 2 is equal to four-fifths of the thickness of the flange 6, and the length of the connecting threaded pipe is greater than the sum of the thicknesses of the two flanges 6. This arrangement is intended to ensure that after the two flanges 6 are bolted between the ends of the cemented carbide layer, the side of the flange 6 facing the sealing rubber ring 2 can be in close contact with the sealing rubber ring 2. This arrangement is intended to ensure a sealed connection between the output end of the discharge valve of the high-speed mixer 12 and the connecting pipe 1, and between the feed port of the internal mixer 12 and the connecting pipe 1 during the feeding process. The length of the connecting threaded pipe is greater than the sum of the thicknesses of the two flanges 6 so that after the flanges 6 are installed on both sides of the sealing rubber ring 2 on the connecting threaded pipe, there is still sufficient margin to accommodate the thickness of the sealing rubber ring 2.

Claims

1. A mixer docking device, characterized in that: It comprises a connecting pipe (1), a flange pair, a vibration device, and a radial-axial double buffer, wherein the radial-axial double buffer is provided between two flange plates (6) of the flange pair, the flange pair is matched with the end portion of the connecting pipe, and the vibration device acts between the two ends of the connecting pipe; The radial-axial double buffer comprises a sealing rubber ring (2), a connecting threaded tube, and a bolt (3). The shape and size of the inner ring of the sealing rubber ring (2) are equal to the shape and size of the inner cross section of the connecting tube (1). The sealing rubber ring (2) is radially provided with a connecting threaded tube. The connecting threaded tube is circumferentially arrayed around the inner ring of the sealing rubber ring (2). The shape and size of the outer cross section of the connecting threaded tube are equal to the shape and size of the connecting hole (11) on the flange (6). The connecting threaded tube comprises a rubber layer (4) and a hard alloy layer (5). The rubber layer (4) is fixedly sleeved on the outer surface of the hard alloy layer (5). The hard alloy layer (5) is provided with an internal thread engaged with the two ends of the bolt (3). The outer surface between the two ends of the connecting threaded tube is fixedly connected to the sealing rubber ring (2). The distance between the end of the connecting threaded tube and the end face of the sealing rubber ring (2) on the same side of the sealing rubber ring (2) is less than the thickness of the flange (6).

2. The internal mixer docking device according to claim 1, characterized in that: The vibration device is a vibration motor (7), and the vibration motor (7) is arranged on the outer surface between the two ends of the connecting pipe (1).

3. The internal mixer docking device according to claim 1, characterized in that: The vibration device is an air blowing device, and the area between the two ends of the connecting pipe (1) is within the effective range of the air flow ejected by the air blowing device.

4. The internal mixer docking device according to claim 3, characterized in that: It also includes an air pipe (9), an air pump (8), and a PLC control system. One end of the air pipe (9) faces the outer surface between the two ends of the connecting pipe (1). The two ends of the connecting pipe (1) are within the range of action of the air flow ejected from the air pipe (9). The air blowing end of the blowing device is connected to the other end of the air pipe (9). The air flow output end of the air pump (8) is connected to the end of the air pipe (9) facing away from the connecting pipe through a solenoid valve. The signal output end of the PLC control system is connected to the solenoid valve.

5. The internal mixer docking device according to claim 4, characterized in that: The outer surface between the two ends of the connecting tube (1) is wrapped with a soft layer (10), the two ends of the air tube (9) are fixedly connected to the soft layer (10), and the end of the air tube (9) facing away from the air pump is connected to the gap formed between the soft layer (10) and the outer surface of the connecting tube (1).

6. The internal mixer docking device according to claim 1, characterized in that: The distance between the end of the connecting threaded tube and the end face of the sealing rubber ring (2) on the same side of the sealing rubber ring (2) is equal to four-fifths of the thickness of the flange (6), and the length of the connecting threaded tube is greater than the sum of the thicknesses of the two flanges (6).

Images