Expandable polystyrene mixing machine

Abstract

The utility model discloses an expandable polystyrene mixing machine which comprises a tank body, a sealing cover is fixedly installed on the outer surface of the tank body, a through bin is arranged in the sealing cover, an isolation plate is fixedly installed on the inner wall of the through bin, an air bag is fixedly installed in the through bin, a driving rod is arranged in the sealing cover, and the driving rod is fixedly installed on the inner wall of the through bin. A rubber sleeve is fixedly installed on the outer surface, located on the air bag, of the driving rod. When the inside of the tank body is in a state that internal materials are not released and air pressure is abnormally reduced, the inside of the air bag can be rapidly inflated, the air bag can rub with the rubber sleeve when expanding to assist the driving rod to be forcibly shut down, meanwhile, the space between the through bin and the driving rod can be sealed under the action of the expansion of the air bag and the rubber sleeve, and the safety of the tank body is improved. Therefore, gas can be blocked below the through bin, the situation that poisonous gas leaks from a gap between the driving rod and the sealing component can be greatly reduced, and the problem that a whole machining area needs to be closed in conventional measures is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polystyrene processing equipment, in particular to a expandable polystyrene mixer. Background Art

[0002] A polystyrene mixer is used to uniformly mix different raw materials, pigments, additives, etc. to ensure the performance and quality of the final product. This mixer can also be used to color polystyrene (PS) or other plastics such as polyvinyl chloride (PVC) by adding pigments or dyes to achieve the desired color. The polystyrene mixer is one of the indispensable equipment in the plastic processing industry. It can improve production efficiency, reduce production costs, and ensure the performance and quality of the final product.

[0003] Polystyrene itself is non-toxic, but when it is mixed with other materials in a liquid state under high pressure, some gases will be volatilized, and these gases are toxic to the human body. Therefore, in addition to being able to withstand high pressure, the safety of the mixer also focuses on sealing. However, the mixer stirs the materials by driving the blades to rotate through a transmission shaft inside. The transmission shaft and the housing are mainly sealed by a sealing film. After long-term operation, together with some corrosive gases, it is very easy to cause the sealing film to fail, and toxic gases can leak under high pressure. The conventional measures to block leakage are mainly to close the working environment and relieve the pressure, but this approach will undoubtedly stop the processing progress of the entire processing area. To solve this technical problem, the utility model proposes an expandable polystyrene mixer. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an expandable polystyrene mixer, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An expandable polystyrene mixer, including a tank body, the outer surface of the tank body is fixedly installed with a sealing cover, a through cavity is arranged inside the sealing cover, a partition board is fixedly installed on the inner wall of the through cavity, an airbag is fixedly installed inside the through cavity, and a driving rod is arranged inside the sealing cover, and a rubber sleeve is fixedly installed on the outer surface of the driving rod located outside the airbag.

[0007] Preferably, a closed cabin is fixedly installed on the outer surface of the sealing cover, the inner wall of the closed cabin is rotatably connected with the outer surface of the driving rod, and a sealing ring is fixedly installed on the outer surface of the sealing cover, and the outer surface of the sealing ring is fixedly installed with the inner top wall of the closed cabin.

[0008] Preferably, a through slot is provided on the inner side of the isolation plate, and the active rod passes through the isolation plate through the through slot. The number of the isolation plates is two, and the airbags are fixedly mounted above and below the isolation plates.

[0009] Preferably, air pipe one, air pipe two and air pipe three are arranged above and inside the sealing cover, the outer surfaces of air pipe one and air pipe two are fixedly mounted to the inner sides of the closed cabin, the sealing ring and the through chamber, and the outer surface of air pipe three is fixedly mounted to the inner sides of the sealing cover and the through chamber.

[0010] Preferably, one end of the air tube one is interconnected with the airbag located above the isolation plate, one end of the air tube three is interconnected with the airbag located below the isolation plate, and one end of the air tube two is interconnected with the internal space of the through chamber between the two isolation plates.

[0011] Preferably, a separation plate is fixedly installed on the inner wall of the tank body, and the inner wall of the separation plate is rotatably connected to the outer surface of the active rod. A stirring blade is fixedly installed on the outer surface of the active rod, and the outer surface of the active rod is rotatably connected to a rotating frame, and the outer surface of the rotating frame is fixedly installed on the inner wall of the tank body.

[0012] Preferably, a feed port is fixedly installed on the inner side of the tank body near the top, and a discharge port is fixedly installed on the inner side of the tank body near the bottom.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the cooperation among the tank body, the sealing cover, the through chamber, the airbag, the active rod and the rubber sleeve, when the air pressure inside the tank body drops abnormally without releasing the internal material, the inside of the airbag can be quickly inflated, and the airbag can rub against the rubber sleeve when expanding, assisting the active rod to force shutdown, and at the same time, the space between the through chamber and the active rod can be sealed under the action of the airbag expansion and the rubber sleeve, so that the gas can be blocked below the through chamber, thereby greatly reducing the leakage of toxic gas from the gap between the active rod and the sealing component, solving the problem that conventional measures require the entire processing area to be closed.

[0015] In the utility model, through the cooperation between air pipe one, air pipe two, air pipe three, the isolation plate and the through chamber, the output ends of air pipe one, air pipe two and air pipe three are all connected to air pumps, the air pump can inflate the upper and lower air bags through air pipe one and air pipe three, and air pipe two can infuse high-pressure gas into the space between the two air bags. The high-pressure gas is always higher than the air pressure inside the tank body, thereby reducing the deformation of the air bag caused by the high-pressure gas inside the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic diagram of the overall structure of an expandable polystyrene mixer of the present utility model;

[0017] Figure 2 Schematic diagram of the sectional view of the tank body of an expandable polystyrene mixer of the present utility model;

[0018] Figure 3 Schematic diagram of the overall internal structure of an expandable polystyrene mixer of the present utility model;

[0019] Figure 4 Schematic diagram of the front view of the inner plane of the sealing cover of an expandable polystyrene mixer of the present utility model;

[0020] Figure 5 For an expandable polystyrene mixer of the present utility model Figure 3 Schematic diagram of the enlarged structure at position A.

[0021] In the figure: 1, tank body; 2, sealing cover; 3, through bin; 4, partition board; 5, airbag; 6, driving rod; 7, rubber sleeve; 8, closed cabin; 9, sealing ring; 10, through groove; 11, air pipe one; 12, air pipe two; 13, air pipe three; 14, separation board; 15, rotating frame; 16, stirring blade; 17, feed inlet; 18, discharge outlet. Specific embodiments

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] As Figures 1-5 shown, an expandable polystyrene mixer includes a tank body 1, a sealing cover 2 is fixedly installed on the outer surface of the tank body 1, a through bin 3 is arranged inside the sealing cover 2, a partition board 4 is fixedly installed on the inner wall of the through bin 3, an airbag 5 is fixedly installed inside the through bin 3, a driving rod 6 is arranged inside the sealing cover 2, and a rubber sleeve 7 is fixedly installed on the outer surface of the driving rod 6 located outside the airbag 5. When the air pressure drops abnormally when the internal materials in the tank body 1 are not released, the airbag 5 can be quickly inflated. When the airbag 5 expands, it can rub against the rubber sleeve 7 to assist the driving rod 6 to stop forcibly. At the same time, under the action of the expansion of the airbag 5 and the rubber sleeve 7, the space between the through bin 3 and the driving rod 6 can be sealed, so that the gas can be blocked below the through bin 3, thereby greatly reducing the leakage of toxic gas from the gap between the driving rod 6 and the sealing component, and solving the problem that the entire processing area needs to be enclosed by conventional measures.

[0024] A closed cabin 8 is fixedly installed on the outer surface of the sealing cover 2, and the inner wall of the closed cabin 8 is rotatably connected to the outer surface of the active rod 6. A sealing ring 9 is fixedly installed on the outer surface of the sealing cover 2, and the outer surface of the sealing ring 9 is fixedly installed on the inner top wall of the closed cabin 8. The closed cabin 8 is a component that mainly contacts the active rod 6 and is installed with the sealing ring 9. An air pressure detection device is installed inside the sealing ring 9, which can detect the air pressure of the gas between the sealing ring 9 and the active rod 6 in real time. These gases are directly connected to the interior of the tank body 1 through the through chamber 3.

[0025] A through groove 10 is provided on the inner side of the isolation plate 4, and the active rod 6 passes through the through groove 10 to penetrate the isolation plate 4. There are two isolation plates 4, and the airbags 5 are fixedly installed above and below the isolation plates 4. The isolation plates 4 can provide an expansion limiting function for the airbags 5, forcing a certain gap to be reserved between the airbags 5.

[0026] Air pipe 1 11, air pipe 2 12 and air pipe 3 13 are arranged above and inside the sealing cover 2. The outer surfaces of air pipe 1 11 and air pipe 2 12 are fixedly installed with the closed cabin 8, the sealing ring 9 and the inner side of the through chamber 3. The outer surface of air pipe 3 13 is fixedly installed with the inner side of the sealing cover 2 and the through chamber 3. The joints between the sealed cabin, the through chamber 3, the sealing ring 9 and air pipe 1 11, air pipe 2 12 and air pipe 3 13 are blocked and sealed with sealing glue to reduce gas leakage through the gaps between the sealed cabin, the through chamber 3, the sealing ring 9 and air pipe 1 11, air pipe 2 12 and air pipe 3 13.

[0027] One end of air pipe 11 is interconnected with the airbag 5 located above the isolation plate 4, one end of air pipe three 13 is interconnected with the airbag 5 located below the isolation plate 4, and one end of air pipe two 12 is interconnected with the internal space of the through chamber 3 between the two isolation plates 4. The output ends of air pipe 1 11, air pipe two 12 and air pipe three 13 are all connected to air pumps, and the air pump can inflate the upper and lower airbags 5 through air pipe 1 11 and air pipe three 13. Air pipe two 12 can infuse high-pressure gas into the space between the two airbags 5. The high-pressure gas is always higher than the air pressure inside the tank body 1, thereby reducing the deformation of the airbag 5 caused by the high-pressure gas inside the tank body 1.

[0028] A separation plate 14 is fixedly installed on the inner wall of the tank body 1, and the inner wall of the separation plate 14 is rotatably connected to the outer surface of the active rod 6. A stirring blade 16 is fixedly installed on the outer surface of the active rod 6, and a rotating frame 15 is rotatably connected to the outer surface of the active rod 6. The outer surface of the rotating frame 15 is fixedly installed on the inner wall of the tank body 1. The separation plate 14 can force the gas and liquid to separate to prevent the liquid from directly impacting the airbag 5.

[0029] The tank body 1 is fixedly installed with a feed inlet 17 on the inner side near the upper part, and the tank body 1 is fixedly installed with a discharge outlet 18 on the inner side near the lower part. One-way valves are installed inside both the discharge outlet 18 and the feed inlet 17, and the items inside the tank body 1 can be freely controlled through the feed inlet 17 and the discharge outlet 18.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An expandable polystyrene mixer, characterized in that: The invention comprises a tank body (1), a sealing cover (2) is fixedly mounted on the outer surface of the tank body (1), a through chamber (3) is arranged inside the sealing cover (2), an isolation plate (4) is fixedly mounted on the inner wall of the through chamber (3), an air bag (5) is fixedly mounted inside the through chamber (3), an active rod (6) is arranged inside the sealing cover (2), and a rubber sleeve (7) is fixedly mounted on the outer surface of the air bag (5).

2. An expandable polystyrene mixer according to claim 1, characterized in that: A closed cabin (8) is fixedly mounted on the outer surface of the sealing cover (2), and the inner wall of the closed cabin (8) is rotatably connected to the outer surface of the active rod (6). A sealing ring (9) is fixedly mounted on the outer surface of the sealing cover (2), and the outer surface of the sealing ring (9) is fixedly mounted to the inner top wall of the closed cabin (8).

3. The expandable polystyrene mixer according to claim 1, characterized in that: A through slot (10) is provided on the inner side of the isolation plate (4), and the active rod (6) passes through the isolation plate (4) through the through slot (10). There are two isolation plates (4), and the airbag (5) is fixedly mounted above and below the isolation plate (4).

4. An expandable polystyrene mixer according to claim 2, characterized in that: Air pipe one (11), air pipe two (12) and air pipe three (13) are arranged above and inside the sealing cover (2); the outer surfaces of air pipe one (11) and air pipe two (12) are fixedly mounted on the inner sides of the closed cabin (8), the sealing ring (9) and the through chamber (3); and the outer surface of air pipe three (13) is fixedly mounted on the inner sides of the sealing cover (2) and the through chamber (3).

5. An expandable polystyrene mixer according to claim 4, characterized in that: One end of the air pipe one (11) is interconnected with the air bag (5) located above the isolation plate (4), one end of the air pipe three (13) is interconnected with the air bag (5) located below the isolation plate (4), and one end of the air pipe two (12) is interconnected with the internal space of the through chamber (3) between the two isolation plates (4).

6. The expandable polystyrene mixer according to claim 1, characterized in that: A separation plate (14) is fixedly mounted on the inner wall of the tank body (1), the inner wall of the separation plate (14) is rotatably connected to the outer surface of the active rod (6), a stirring blade (16) is fixedly mounted on the outer surface of the active rod (6), the outer surface of the active rod (6) is rotatably connected to a rotating frame (15), and the outer surface of the rotating frame (15) is fixedly mounted to the inner wall of the tank body (1).

7. The expandable polystyrene mixer according to claim 1, characterized in that: A feed port (17) is fixedly installed on the inner side of the tank body (1) near the top, and a discharge port (18) is fixedly installed on the inner side of the tank body (1) near the bottom.

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