Prepolymer synthesis experiment device

Abstract

The utility model relates to the technical field of experimental devices, in particular to a prepolymer synthesis experimental device which comprises a base, the top surface of the base is fixedly connected with a support through bolts, the inside of the support is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a lifting frame. The utility model has the advantages that after materials are stirred, the air valve controller is driven by the air cylinder to move upwards until the air outlet completely moves out of the mixing bin, the fastening bolt can be rotated to enable the screw part of the fastening bolt to move out of the locking hole, the locking of the moving plate can be released, and at the moment, the moving plate can be pulled to move outwards, so that the materials are completely mixed. The mixing bin can be conveniently transported through the universal wheels, after the mixing bin is transported to the discharging position, the rotating shaft can be driven to rotate through the driving motor and the speed reducer, then the mixing bin can be driven to rotate, discharging can be rapidly conducted till an opening of the mixing bin inclines downwards, transportation is not convenient, and discharging is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental devices, in particular to a prepolymer synthesis experimental device. Background Art

[0002] Prepolymer, also known as prepolymer, is a substance formed by the preliminary polymerization of monomers. It is used in situations where it is difficult for monomers to be completely polymerized into polymers at one time, or to avoid the occurrence of voids and cracks in the polymer during processing and molding. For example, when preparing polyimide, pyromellitic dianhydride and aromatic diamine are often initially polymerized into prepolymers in solvents such as dimethyl sulfoxide, and then cyclized and dehydrated at about 300°C to form resins or products.

[0003] For example, a prepolymer synthesis experimental device with publication number CN211216649U, the utility model provides fixed support for other structures of the entire device through the arrangement of a base panel, a pressure column, a positioning ring, a support column and an auxiliary support column, thereby maintaining the stability of the equipment during use, and relying on the cooperation between the pressure column and the positioning ring to maintain the coaxiality between the mixing bin and the stirring equipment, thereby preventing the mixing bin from tilting during the mixing process.

[0004] The above-mentioned prepolymer synthesis experimental device still has the following shortcomings in actual use: the above-mentioned experimental device fixes the mixing bin inside the positioning ring. Although it can ensure the stability of the equipment during use, after the material mixing is completed, the mixed material needs to be taken out from the mixing bin. Due to the limitation of the positioning ring, the opening of the mixing bin will always face upward. When taking out the material, it is necessary to use a tool to scoop out the material, which will waste a lot of time and the operation will be more laborious. Therefore, a prepolymer synthesis experimental device is needed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] Therefore, one purpose of the utility model is to provide a prepolymer synthesis experimental device to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a prepolymer synthesis experimental device, comprising a base, the top surface of the base is fixedly connected to a bracket by bolts, the inside of the bracket is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a lifting frame, the side of the lifting frame is fixedly connected to a gas valve controller, the output end of the gas valve controller is fixedly connected to an air duct, the bottom of the air duct is fixedly connected to an air outlet, the bottom of the gas valve controller is fixedly connected to a cover plate, a mixing bin is arranged below the gas valve controller, the top surface of the mixing bin is in conflict with the bottom surface of the cover plate, the outer surface of the mixing bin is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is rotatably connected to a rotating frame, the side of the rotating frame is fixedly connected to a reducer, the input end of the reducer is fixedly connected to a driving motor, the output end of the reducer is fixedly connected to the rotating shaft, the bottom of the rotating frame is fixedly connected to a moving plate, the bottom surface of the moving plate is fixedly connected to a plurality of universal wheels, the top of the base is threadedly connected to a fastening bolt, and the screw portion of the fastening bolt is clamped with the moving plate.

[0008] Preferably, any of the above schemes has two guide rods fixedly connected to the bottom surface of the lifting frame, the two guide rods are symmetrically distributed on both sides of the cylinder, and the guide rods are slidably connected to the bracket.

[0009] Preferably, any of the above schemes is that the air guide pipe coincides with the axis of the mixing chamber, and the air guide pipe and the air outlet are both located inside the mixing chamber.

[0010] Preferably, any of the above schemes has a rotating hole extending through the side surface of the rotating frame, and the rotating shaft is rotatably connected to the rotating frame through the rotating hole.

[0011] Preferably, any of the above schemes has a locking hole on the side of the movable plate, and the fastening bolt is slidably connected to the movable plate through the locking hole.

[0012] Preferably, any of the above schemes has a connecting pin fixedly connected to the side of the movable plate, a connecting plate fixedly connected to the top surface of the base, a connecting hole is formed through the side of the connecting plate, and the connecting pin is slidably connected to the connecting plate through the connecting hole.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] When it is necessary to carry out the synthesis operation of the prepolymer, the cylinder can be turned on to drive the air valve controller upward through the lifting frame until the opening of the mixing bin is exposed and the material is added into the mixing bin. Then, the cylinder is turned on to drive the air valve controller downward until the cover plate is in close contact with the mixing bin and the mixing bin can be sealed. The air valve controller is turned on to generate high-pressure airflow at the air outlet to stir the material. After the stirring is completed, the air valve controller is driven by the cylinder to move upward until the air outlet completely moves out of the mixing bin. The fastening bolt is turned to move the screw part out of the locking hole to release the lock of the movable plate. At this time, the movable plate can be pulled to move outward. The mixing bin can be easily transported through the universal wheel. After transporting to the unloading position, the rotating shaft can be driven to rotate by the driving motor and the reducer, and then the mixing bin can be driven to rotate until its opening is tilted downward and the material can be quickly unloaded. It is not only inconvenient to transport, but also more convenient to unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the assembly of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bracket of the utility model from the first perspective;

[0017] Figure 3 This is a schematic diagram of the structure of the bracket of the utility model from a second viewing angle;

[0018] Figure 4 This is a schematic diagram of the structure of the gas valve controller of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the mixing bin of the utility model.

[0020] In the figure: 1-base, 2-bracket, 3-cylinder, 4-lifting frame, 5-valve controller, 6-air guide pipe, 7-air outlet, 8-cover plate, 9-mixing chamber, 10-rotating shaft, 11-rotating frame, 12-reducer, 13-drive motor, 14-moving plate, 15-universal wheel, 16-fastening bolt, 17-guide rod, 18-rotating hole, 19-locking hole, 20-connecting pin, 21-connecting plate, 22-connecting hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0022] like Figures 1 to 5As shown, a prepolymer synthesis experimental device comprises a base 1, the top surface of the base 1 is fixedly connected to a bracket 2 by bolts, the inside of the bracket 2 is fixedly connected to a cylinder 3, the output end of the cylinder 3 is fixedly connected to a lifting frame 4, the side of the lifting frame 4 is fixedly connected to a gas valve controller 5, the output end of the gas valve controller 5 is fixedly connected to an air guide pipe 6, the bottom of the air guide pipe 6 is fixedly connected to an air outlet 7, the bottom of the gas valve controller 5 is fixedly connected to a cover plate 8, a mixing chamber 9 is arranged below the gas valve controller 5, and the top surface of the mixing chamber 9 abuts against the bottom surface of the cover plate 8 The outer surface of the mixing bin 9 is fixedly connected with a rotating shaft 10, the outer surface of the rotating shaft 10 is rotatably connected with a rotating frame 11, the side of the rotating frame 11 is fixedly connected with a reducer 12, the input end of the reducer 12 is fixedly connected with a driving motor 13, the output end of the reducer 12 is fixedly connected to the rotating shaft 10, the bottom of the rotating frame 11 is fixedly connected with a moving plate 14, the bottom surface of the moving plate 14 is fixedly connected with a plurality of universal wheels 15, the top of the base 1 is threadedly connected with a fastening bolt 16, and the screw portion of the fastening bolt 16 is clamped with the moving plate 14.

[0023] As an optional technical solution of the present invention, two guide rods 17 are fixedly connected to the bottom surface of the lifting frame 4. The two guide rods 17 are symmetrically distributed on both sides of the cylinder 3. The guide rods 17 are slidably connected to the bracket 2. When the lifting frame 4 is lifted or lowered, it will drive the guide rods 17 to slide relative to the bracket 2, thereby limiting the movement of the lifting frame 4.

[0024] As an optional technical solution of the utility model, the air guide pipe 6 coincides with the axis of the mixing bin 9, and the air guide pipe 6 and the air outlet 7 are both located inside the mixing bin 9. The air valve controller 5 is opened to generate a high-pressure airflow at the air outlet 7, so that the material can be stirred.

[0025] As an optional technical solution of the utility model, a rotating hole 18 is opened through the side of the rotating frame 11, and the rotating shaft 10 is rotatably connected to the rotating frame 11 through the rotating hole 18. The driving motor 13 and the reducer 12 can drive the rotating shaft 10 to rotate, and then drive the mixing bin 9 to rotate until its opening is tilted downward and can be unloaded quickly.

[0026] As an optional technical solution of the utility model, a locking hole 19 is opened on the side of the movable plate 14, and the fastening bolt 16 is slidingly connected to the movable plate 14 through the locking hole 19. The fastening bolt 16 is rotated to move its screw portion out of the locking hole 19, so that the movable plate 14 can be unlocked.

[0027] As an optional technical solution of the present utility model, a connecting pin 20 is fixedly connected to the side of the movable plate 14, and a connecting plate 21 is fixedly connected to the top surface of the base 1. A connecting hole 22 is opened through the side of the connecting plate 21. The connecting pin 20 is slidingly connected to the connecting plate 21 through the connecting hole 22. The connecting pin 20 is clamped with the connecting plate 21 through the connecting hole 22, which can make the connection between the movable plate 14 and the base 1 more stable.

[0028] A prepolymer synthesis experimental device, the working principle is as follows:

[0029] 1): When the prepolymer synthesis operation is required, the cylinder 3 can be turned on to drive the valve controller 5 to move upward through the lifting frame 4 until the opening of the mixing bin 9 is exposed and the material is added into the mixing bin 9.

[0030] 2): Open the cylinder 3 to drive the air valve controller 5 to move downward until the cover plate 8 is in close contact with the mixing bin 9, and then the mixing bin 9 can be sealed. Open the air valve controller 5 to generate high-pressure airflow at the air outlet 7 to stir the material.

[0031] 3): Turn the fastening bolt 16 to move the screw part out of the locking hole 19, which can release the lock on the movable plate 14. At this time, the movable plate can be pulled to move outward, and the mixing bin 9 can be easily transported through the universal wheel 15. After being transported to the unloading position, the driving motor 13 and the reducer 12 can drive the rotating shaft 10 to rotate, and then the mixing bin 9 can be driven to rotate until its opening is tilted downward, so that it can be quickly unloaded.

[0032] In summary, in the prepolymer synthesis experimental device, when the prepolymer synthesis operation needs to be carried out, the cylinder 3 can be turned on to drive the valve controller 5 to move upward through the lifting frame 4 until the opening of the mixing bin 9 is exposed, and then the material is added to the mixing bin 9. Then, the cylinder 3 is turned on to drive the valve controller 5 to move downward until the cover plate 8 is in close contact with the mixing bin 9, and then the mixing bin 9 can be sealed. The valve controller 5 is turned on to generate a high-pressure airflow at the air outlet 7, and the material can be stirred. After the stirring is completed, the cylinder 3 is used to drive the valve controller 5 to move upward. 5 moves upward until the air outlet 7 completely moves out of the mixing bin 9, and then the fastening bolt 16 is rotated to make the screw part move out of the locking hole 19, so that the locking of the movable plate 14 can be released. At this time, the movable plate can be pulled to move outward, and the mixing bin 9 can be easily transported through the universal wheel 15. After being transported to the unloading position, the driving motor 13 and the reducer 12 can drive the rotating shaft 10 to rotate, and then the mixing bin 9 can be driven to rotate until its opening is tilted downward, so that the unloading can be carried out quickly, which is not only inconvenient for transportation, but also more convenient for unloading.

Claims

1. A prepolymer synthesis experimental device, characterized in that: The invention comprises a base (1), the top surface of the base (1) is fixedly connected to a bracket (2) by bolts, the inside of the bracket (2) is fixedly connected to a cylinder (3), the output end of the cylinder (3) is fixedly connected to a lifting frame (4), the side of the lifting frame (4) is fixedly connected to a gas valve controller (5), the output end of the gas valve controller (5) is fixedly connected to an air guide pipe (6), the bottom of the gas guide pipe (6) is fixedly connected to an air outlet (7), the bottom of the gas valve controller (5) is fixedly connected to a cover plate (8), a mixing chamber (9) is arranged below the gas valve controller (5), the top surface of the mixing chamber (9) is in conflict with the bottom surface of the cover plate (8), and the mixing chamber (9) is fixedly connected to the bottom surface of the cover plate (8). The outer surface of the rotating shaft (9) is fixedly connected to a rotating shaft (10), the outer surface of the rotating shaft (10) is rotatably connected to a rotating frame (11), the side of the rotating frame (11) is fixedly connected to a reducer (12), the input end of the reducer (12) is fixedly connected to a driving motor (13), the output end of the reducer (12) is fixedly connected to the rotating shaft (10), the bottom of the rotating frame (11) is fixedly connected to a moving plate (14), the bottom surface of the moving plate (14) is fixedly connected to a plurality of universal wheels (15), the top of the base (1) is threadedly connected to a fastening bolt (16), and the screw portion of the fastening bolt (16) is clamped with the moving plate (14).

2. A prepolymer synthesis experimental device according to claim 1, characterized in that: Two guide rods (17) are fixedly connected to the bottom surface of the lifting frame (4), and the two guide rods (17) are symmetrically distributed on both sides of the cylinder (3). The guide rods (17) are slidably connected to the bracket (2).

3. A prepolymer synthesis experimental device according to claim 2, characterized in that: The air guide pipe (6) and the axis of the mixing chamber (9) coincide with each other, and the air guide pipe (6) and the air outlet (7) are both located inside the mixing chamber (9).

4. A prepolymer synthesis experimental device according to claim 3, characterized in that: A rotating hole (18) is formed through the side surface of the rotating frame (11), and the rotating shaft (10) is rotatably connected to the rotating frame (11) through the rotating hole (18).

5. A prepolymer synthesis experimental device according to claim 4, characterized in that: A locking hole (19) is provided on the side of the movable plate (14), and the fastening bolt (16) is slidably connected to the movable plate (14) through the locking hole (19).

6. A prepolymer synthesis experimental device according to claim 5, characterized in that: A connecting pin (20) is fixedly connected to the side surface of the movable plate (14), a connecting plate (21) is fixedly connected to the top surface of the base (1), a connecting hole (22) is formed through the side surface of the connecting plate (21), and the connecting pin (20) is slidably connected to the connecting plate (21) through the connecting hole (22).

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