Polyimide prepolymer powder mixing equipment

Abstract

The utility model discloses polyimide prepolymer powder blending equipment, which is applied to the technical field of polyimide production and comprises a mounting box, a blending device is arranged in the mounting box, and sealing devices are arranged on two sides of the mounting box. The uniform mixing device comprises a uniform mixing box arranged in the mounting box, a sealing cover arranged at the top of the uniform mixing box, a mounting cover arranged at the top of the sealing cover and positioned above the mounting box, rollers fixedly mounted at the bottom of the uniform mixing box, and elliptical metal blocks arranged in the mounting box and positioned at the bottoms of the rollers; according to the uniform mixing device disclosed by the utility model, the uniform mixing device is accommodated through the arrangement of the mounting box, and the uniform mixing device is limited and fixed through the arrangement of the sealing device, so that the stability between the uniform mixing device and the mounting box is improved; by arranging the uniform mixing device, the polyimide and the additive are mixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyimide production, and particularly relates to polyimide prepolymer powder mixing equipment. Background Art

[0002] Polyimide refers to a type of polymer containing imide rings on the main chain. It is one of the organic polymer materials with the best comprehensive performance. It is resistant to high temperatures of over 400°C and has a long-term operating temperature range of -200 to 300°C. Some of them have no obvious melting point and have high insulation performance. The dielectric constant is 4.0 at 103 Hz and the dielectric loss is only 0.004 to 0.007, belonging to F to H grade insulation.

[0003] At present, when polyimide is produced and molded, it is often necessary to add relevant additives to the inside of its powder to make it mixed evenly. The Chinese utility model with the announcement number: CN218659942U discloses a polyimide resin efficient mixing equipment, including a shell, the top of the shell is fixedly connected to a cover plate by bolts, the left side of the top of the cover plate is connected to a feed hopper, the top of the inner wall of the shell is fixedly connected to a mesh plate by bolts, the surface of the shell is installed with a stirring assembly, and the surface of the stirring assembly is installed with a rolling assembly.

[0004] Although this solution can achieve the crushing and mixing of raw materials, in actual use, part of the raw materials will fall to the bottom during mixing, resulting in uneven mixing, which affects the use and cannot meet the mixing needs. Utility Model Content

[0005] The utility model aims at a polyimide prepolymer powder mixing device, which has the advantage of being able to completely mix the raw materials at the bottom.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a polyimide prepolymer powder mixing device, comprising an installation box, a mixing device is arranged inside the installation box, and sealing devices are arranged on both sides of the installation box;

[0007] The mixing device includes a mixing box arranged inside the installation box, a sealing cover arranged on the top of the mixing box, an installation cover arranged on the top of the sealing cover and located above the installation box, a roller fixedly installed at the bottom of the mixing box, and an elliptical metal block arranged inside the installation box and located at the bottom of the roller, a second motor is fixedly installed on the top of the sealing cover, a first transmission rod is fixedly installed on the output end of the second motor, and evenly distributed stirring rods are fixedly installed on both sides of the first transmission rod and located inside the mixing box.

[0008] The above technical solution is adopted: the mixing device is accommodated by setting the installation box, the mixing device is limited and fixed by setting the sealing device, the stability between the mixing device and the installation box is increased, and the polyimide and the additive are mixed by setting the mixing device.

[0009] The utility model is further configured that two damping rods are fixedly mounted on the top of the sealing cover, and the tops of the damping rods are fixedly connected to the bottom of the mounting cover.

[0010] The above technical solution is adopted: the sealing cover is squeezed by setting the damping rod, so that the bottom of the sealing cover and the top of the mixing box are completely sealed to prevent the leakage of polyimide and additives during mixing. At the same time, the sealing cover and the mixing box are squeezed downward so that the elliptical metal block and the roller continue to rise.

[0011] The utility model is further configured that limiting channel steels are fixedly installed on both sides of the inner cavity of the installation box, a limiting rod is inserted inside the limiting channel steel, and one side of the limiting rod is fixedly connected to the mixing box.

[0012] The above technical solution is adopted: the mixing box is limited by the cooperation between the limiting channel steel and the limiting rod, thereby increasing the stability of the mixing box inside the installation box.

[0013] The utility model is further configured such that a first handle is fixedly mounted on the top of the mounting cover, and a second handle is fixedly mounted on the front side and the rear side of the mixing box.

[0014] By adopting the above technical solution, the installation cover can be easily removed through the setting of the first handle, and the mixing box can be removed through the cooperation between the second handles.

[0015] The utility model is further configured such that a third motor is fixedly mounted on the front side of the installation box, a second transmission rod is fixedly mounted on the output end of the third motor, and the rear side of the second transmission rod penetrates into the interior of the installation box and is fixedly connected to the elliptical metal block.

[0016] The above technical solution is adopted: the elliptical metal block is driven by the cooperation between the third motor and the second transmission rod, and then the roller is driven to lift and vibrate the mixing box to facilitate the uniform mixing of polyimide and additives.

[0017] The utility model is further configured such that the sealing device includes two extrusion blocks arranged on both sides of the top of the installation box, a connecting block is arranged inside the extrusion block and above the installation box, and one side of the connecting block is fixedly connected to both sides of the installation cover.

[0018] By adopting the above technical solution, the mounting cover is fixed relative to the mounting box through the cooperation between the extrusion block and the connection block, thereby increasing the stability of the mounting cover.

[0019] The utility model is further configured that a slide groove is provided on the top of the installation box, two sliding blocks are slidably connected inside the slide groove, and the top of the sliding block is fixedly connected to the bottom of the extrusion block.

[0020] The above technical solution is adopted: the extrusion block is limited by the cooperation between the slide groove and the slider, the stability of the extrusion block is increased, and the movement of the extrusion block is achieved at the same time.

[0021] The utility model is further configured that two first motors are fixedly installed on the front side of the installation box, and a threaded rod is fixedly installed on the output end of the first motor. The threaded rod penetrates into the interior of the slide groove and is rotatably connected to the slider through a thread.

[0022] By adopting the above technical solution, the slider and the extrusion block can be synchronously moved through the cooperation among the first motor, the threaded rod and the bidirectional thread, so as to limit the connection block.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. The mixing device is accommodated by the installation box, the sealing device is set to limit and fix the mixing device, the stability between the mixing device and the installation box is increased, and the polyimide and the additive are mixed by the mixing device;

[0025] 2. The polyimide and additives are contained by setting a mixing box, the mixing box is sealed by setting a mounting cover, the polyimide and additives placed in the mixing box are stirred by the cooperation between the second motor, the stirring rod and the first transmission rod, the polyimide and additives in the mixing box are shaken by the roller driven by the elliptical metal block to lift the mixing box, and the polyimide and additives at the bottom are turned over to mix them evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0028] Figure 3 This is a schematic diagram of the installation cover structure of the utility model;

[0029] Figure 4 It is a schematic diagram of the sealing cover and mixing box structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the sealing cover and mixing box of the utility model when viewed from above;

[0031] Figure 6 This is a schematic diagram of the structure of the sealing cover and the bottom stirring device of the utility model;

[0032] Figure 7 It is a schematic diagram of the structure of the elliptical metal block power device of the utility model;

[0033] Figure 8 It is a schematic diagram of the sealing device structure of the utility model.

[0034] Figure numerals: 1. Installation box; 2. Sealing device; 201. First motor; 202. Slide groove; 203. Extrusion block; 204. Connecting block; 205. Slider; 206. Threaded rod; 3. Mixing device; 301. Installation cover; 302. First handle; 303. Damping rod; 304. Limiting channel steel; 305. Second motor; 306. Sealing cover; 307. Third motor; 308. Limiting rod; 309. Mixing box; 310. Roller; 311. Stirring rod; 312. First transmission rod; 313. Second transmission rod; 314. Oval metal block. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1:

[0037] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A polyimide prepolymer powder mixing device comprises an installation box 1, a mixing device 3 is arranged inside the installation box 1, and sealing devices 2 are arranged on both sides of the installation box 1. The installation box 1 is provided to accommodate the mixing device 3, and the sealing device 2 is provided to limit and fix the mixing device 3, thereby increasing the stability between the mixing device 3 and the installation box 1. The mixing device 3 is provided to mix polyimide and additives;

[0038] The mixing device 3 includes a mixing box 309 arranged inside the installation box 1, a sealing cover 306 arranged on the top of the mixing box 309, an installation cover 301 arranged on the top of the sealing cover 306 and located above the installation box 1, a roller 310 fixedly installed at the bottom of the mixing box 309, and an elliptical metal block 314 arranged inside the installation box 1 and located at the bottom of the roller 310. A second motor 305 is fixedly installed on the top of the sealing cover 306, a first transmission rod 312 is fixedly installed on the output end of the second motor 305, and two sides of the first transmission rod 312 and located inside the mixing box 309 are fixedly installed. The evenly distributed stirring rods 311 are used to accommodate the polyimide and the additives through the setting of the mixing box 309, and the mixing box 309 is sealed by the setting of the installation cover 301. The polyimide and the additives placed in the mixing box 309 are stirred through the cooperation between the second motor 305, the stirring rod 311 and the first transmission rod 312. The roller 310 is pushed by the elliptical metal block 314 to lift and lower the mixing box 309 to shake the polyimide and the additives in the mixing box 309, and the polyimide and the additives at the bottom are turned over to mix them evenly.

[0039] Furthermore, two damping rods 303 are fixedly installed on the top of the sealing cover 306, and the top of the damping rod 303 is fixedly connected to the bottom of the mounting cover 301. The sealing cover 306 is squeezed by the setting of the damping rod 303, so that the bottom of the sealing cover 306 and the top of the mixing box 309 are completely sealed to prevent the leakage of polyimide and additives during mixing. At the same time, the sealing cover 306 and the mixing box 309 are squeezed downward so that the elliptical metal block 314 and the roller 310 continue to rise.

[0040] Furthermore, limiting channel steels 304 are fixedly installed on both sides of the inner cavity of the installation box 1, and limiting rods 308 are inserted inside the limiting channel steels 304. One side of the limiting rod 308 is fixedly connected to the mixing box 309. The mixing box 309 is limited by the cooperation between the limiting channel steel 304 and the limiting rod 308, thereby increasing the stability of the mixing box 309 inside the installation box 1.

[0041] Furthermore, a first handle 302 is fixedly installed on the top of the installation cover 301, and second handles are fixedly installed on the front and rear sides of the mixing box 309. The first handle 302 facilitates the removal of the installation cover 301, and the mixing box 309 is removed through the cooperation between the second handles.

[0042] Furthermore, a third motor 307 is fixedly installed on the front side of the installation box 1, and a second transmission rod 313 is fixedly installed on the output end of the third motor 307. The rear side of the second transmission rod 313 penetrates into the interior of the installation box 1 and is fixedly connected to the elliptical metal block 314. The elliptical metal block 314 is driven by the cooperation between the third motor 307 and the second transmission rod 313, thereby driving the roller 310 to lift and vibrate the mixing box 309 to facilitate uniform mixing of polyimide and additives.

[0043] Brief description of the use process: The mixing box 309 is hoisted into the interior of the installation box 1 through the second handle, and the limiting rods 308 on both sides of the mixing box 309 are inserted into the interior of the limiting channel steel 304. As the mixing box 309 descends, the roller 310 contacts the top of the elliptical metal block 314. After the placement is completed, polyimide and additives are added to the interior of the mixing box 309. After the addition is completed, the installation cover 301 is hoisted through the first handle 302 and moved to the top of the installation box 1, so that the sealing cover 306 at the bottom of the installation cover 301 covers the mixing box 309. The top of the box 309 is sealed. After the sealing is completed, the third motor 307 drives the second transmission rod 313 to drive the elliptical metal block 314 to rotate. The elliptical metal block 314 squeezes the roller 310 to make the mixing box 309 rise. At the same time, it is squeezed and moved up and down under the action of the damping rod 303, so that the mixing box 309 is lifted and lowered, so that the polyimide and the additive are rolled. At the same time, the second motor 305 drives the stirring rod 311 and the first transmission rod 312 to rotate, so that the polyimide and the additive are mixed.

[0044] Embodiment 2:

[0045] refer to Figure 1 , Figure 2 , Figure 3 and Figure 8 A polyimide prepolymer powder mixing device, the sealing device 2 includes two extrusion blocks 203 arranged on both sides of the top of the installation box 1, and a connecting block 204 is arranged inside the extrusion block 203 and above the installation box 1. One side of the connecting block 204 is fixedly connected to both sides of the installation cover 301. The installation cover 301 is fixed relative to the installation box 1 through the cooperation between the extrusion block 203 and the connecting block 204 to increase the stability of the installation cover 301.

[0046] Furthermore, a slide groove 202 is opened on the top of the installation box 1, and two sliders 205 are slidably connected inside the slide groove 202. The top of the slider 205 is fixedly connected to the bottom of the extrusion block 203. Through the cooperation between the slide groove 202 and the slider 205, the extrusion block 203 is limited to increase the stability of the extrusion block 203 and realize the movement of the extrusion block 203.

[0047] Furthermore, two first motors 201 are fixedly installed on the front side of the installation box 1, and a threaded rod 206 is fixedly installed on the output end of the first motor 201. The threaded rod 206 penetrates into the interior of the slide groove 202 and is rotatably connected to the slider 205 by a thread. Through the cooperation between the first motor 201, the threaded rod 206 and the bidirectional thread, the slider 205 and the extrusion block 203 are synchronously moved to facilitate the limiting of the connecting block 204.

[0048] Brief description of the use process: After the installation cover 301 is placed on the top of the installation box 1, the sealing cover 306 is driven to rotate by the first motor 201. Under the action of the two-way thread, the slider 205 moves relatively close to each other synchronously, thereby realizing the movement of the extrusion block 203, so that the extrusion block 203 moves synchronously to the top of the connecting block 204 for limiting, increasing the stability of the connecting block 204 and thus realizing the limiting and fixing of the installation cover 301.

[0049] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A polyimide prepolymer powder mixing device, comprising a mounting box (1), characterized in that: A mixing device (3) is provided inside the installation box (1), and sealing devices (2) are provided on both sides of the installation box (1); The mixing device (3) comprises a mixing box (309) arranged inside the installation box (1), a sealing cover (306) arranged on the top of the mixing box (309), an installation cover (301) arranged on the top of the sealing cover (306) and located above the installation box (1), a roller (310) fixedly installed at the bottom of the mixing box (309), and an elliptical metal block (314) arranged inside the installation box (1) and located at the bottom of the roller (310), a second motor (305) is fixedly installed on the top of the sealing cover (306), a first transmission rod (312) is fixedly installed at the output end of the second motor (305), and evenly distributed stirring rods (311) are fixedly installed on both sides of the first transmission rod (312) and located inside the mixing box (309).

2. The polyimide prepolymer powder mixing device according to claim 1, characterized in that: Two damping rods (303) are fixedly mounted on the top of the sealing cover (306), and the tops of the damping rods (303) are fixedly connected to the bottom of the mounting cover (301).

3. The polyimide prepolymer powder mixing device according to claim 1, characterized in that: Limiting channel steels (304) are fixedly installed on both sides of the inner cavity of the installation box (1), and a limiting rod (308) is inserted into the interior of the limiting channel steel (304), and one side of the limiting rod (308) is fixedly connected to the mixing box (309).

4. The polyimide prepolymer powder mixing device according to claim 1, characterized in that: A first handle (302) is fixedly mounted on the top of the mounting cover (301), and a second handle is fixedly mounted on the front and rear sides of the mixing box (309).

5. The polyimide prepolymer powder mixing device according to claim 1, characterized in that: A third motor (307) is fixedly mounted on the front side of the installation box (1), a second transmission rod (313) is fixedly mounted on the output end of the third motor (307), and the rear side of the second transmission rod (313) penetrates into the interior of the installation box (1) and is fixedly connected to the elliptical metal block (314).

6. The polyimide prepolymer powder mixing device according to claim 1, characterized in that: The sealing device (2) comprises two extrusion blocks (203) arranged on both sides of the top of the installation box (1), a connection block (204) is arranged inside the extrusion block (203) and above the installation box (1), and one side of the connection block (204) is fixedly connected to both sides of the installation cover (301).

7. The polyimide prepolymer powder mixing device according to claim 6, characterized in that: A slide groove (202) is provided on the top of the installation box (1), and two sliders (205) are slidably connected inside the slide groove (202), and the top of the slider (205) is fixedly connected to the bottom of the extrusion block (203).

8. The polyimide prepolymer powder mixing device according to claim 7, characterized in that: Two first motors (201) are fixedly mounted on the front side of the mounting box (1); a threaded rod (206) is fixedly mounted on the output end of the first motor (201); the threaded rod (206) penetrates into the interior of the slide groove (202) and is rotationally connected to the slider (205) via a thread.

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