A pretreatment device for preparing a flexible electromagnetic shielding material

Abstract

The utility model discloses a kind of pretreatment device for preparing flexible electromagnetic shielding material, it is related to electromagnetic shielding material preparation technical field;And the utility model includes mixing bucket, the top surface of the mixing bucket is fixed with fixed box, the top surface of the fixed box is fixed with fixed frame, the side of the fixed frame is equipped with second motor, the output of the second motor is fixed with threaded rod, the outer surface of the threaded rod is fixed with threaded block, the bottom surface of the threaded block is fixed with U-shaped frame, rotating penetration has shaft in the U-shaped frame, the outer surface of the shaft is fixed with pressure holding roller, the fixed box is fixed with screen, sliding sliding in fixed box by U-shaped frame drive shaft and pressure holding roller, promote the second tooth ring on the surface of shaft and tooth plate meshing, further make pressure holding roller roll in screen, further can the raw material of agglomerate is scattered, further more uniform when mixing.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding material preparation technology, specifically a pretreatment device for preparing flexible electromagnetic shielding materials. Background Technology

[0002] Flexible electromagnetic shielding materials are a class of advanced materials that combine electromagnetic interference shielding with flexible and deformable properties (such as being able to be bent, folded, stretched, and even compressed). Their main purpose is to isolate or reduce the interference of external electromagnetic fields on internal precision equipment, while preventing the leakage of electromagnetic signals generated by internal equipment, thereby ensuring the normal operation of electronic equipment and information security.

[0003] Before preparing flexible electromagnetic shielding materials, it is necessary to pre-mix the filler and polymer matrix to prepare for subsequent molding processes. However, in existing mixing devices, the stored raw materials tend to clump together when mixing the filler and polymer matrix. After being poured into the mixing tank, the clumped raw materials are only broken up by stirring and shearing force, which is not enough to break up the clumped raw materials, resulting in uneven mixing. To address the above problems, the inventors have proposed a pretreatment device for the preparation of flexible electromagnetic shielding materials. Utility Model Content

[0004] To address the problem that stored raw materials are prone to clumping, and that it is difficult to break up clumped raw materials simply by stirring and shearing, the purpose of this invention is to provide a pretreatment device for the preparation of flexible electromagnetic shielding materials.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a pretreatment device for preparing flexible electromagnetic shielding materials, including a mixing tank, a fixed box fixedly mounted on the top surface of the mixing tank, a fixed frame fixedly mounted on the top surface of the fixed box, a second motor mounted on one side of the fixed frame, a threaded rod fixedly mounted on the output end of the second motor, a threaded block threadedly mounted on the outer surface of the threaded rod, a U-shaped frame fixedly mounted on the bottom surface of the threaded block, a rotating shaft rotatably passing through the U-shaped frame, a pressure roller fixedly mounted on the outer surface of the rotating shaft, a screen fixedly mounted inside the fixed box, the pressure roller rolling on the outer surface of the screen, and toothed plates fixedly mounted on both sides of the fixed box. A second toothed ring is fixedly sleeved on the outer surface of the rotating shaft. The second toothed ring meshes with the toothed plate. First, the filler and polymer matrix are poured into the fixed box and placed on the surface of the screen. The second motor is turned on, which causes the threaded rod to rotate and drives the threaded block to slide the U-shaped frame. At the same time, the U-shaped frame drives the rotating shaft and the pressure roller to slide in the fixed box, causing the second toothed ring on the surface of the rotating shaft to mesh with the toothed plate. This causes the pressure roller to roll in the screen, thereby breaking up the agglomerated raw materials. Some raw materials flow out from the chute, are collected by the set protective frame, and fall onto the inclined plate. Then, they fall from the inclined surface of the inclined plate into the return trough, and can then enter the mixing tank again from the fixed box. Then, the first motor is turned on, causing the first gear ring to rotate. The first gear ring drives the first crown gear and the second crown gear to rotate, which in turn causes the first crown gear to drive the rotating drum to rotate inside the mixing tank, and causes the L-shaped rod and the first stirring rod to rotate. At the same time, the second crown gear drives the rotating rod to rotate inside the rotating drum, causing the rotating rod to drive the second stirring rod to reverse, thus causing the first stirring rod and the second stirring rod to stir in opposite directions, making the mixture more uniform.

[0006] Preferably, the fixed box has a sliding groove inside, the rotating shaft rolls in the sliding groove, the fixed box has a return groove inside, protective frames are fixed on both sides of the fixed box, and inclined plates are fixed inside the protective frames.

[0007] Preferably, a rotating drum is rotatably disposed inside the mixing drum, an L-shaped rod is fixedly disposed on the outer surface of the rotating drum, a first stirring rod is fixedly disposed on the outer surface of the L-shaped rod, a rotating rod is rotatably passed through the rotating drum, a second stirring rod is fixedly sleeved on the outer surface of the rotating rod, a housing is installed on the top surface of the mixing drum, the rotating drum is rotatably disposed inside the housing, the rotating rod is rotatably fitted inside the top end of the housing, a first crown gear is fixedly disposed on the top end of the rotating drum, a first motor is installed inside the housing, a first gear ring is fixedly disposed on the output end of the first motor, the first gear ring meshes with the first crown gear, a second crown gear is fixedly sleeved on the outer surface of the rotating rod, the first gear ring meshes with the second crown gear.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The U-shaped frame drives the rotating shaft and the pressure roller to slide within the fixed box, causing the second toothed ring on the surface of the rotating shaft to mesh with the toothed plate, thereby causing the pressure roller to roll within the screen, which can break up the clumps of raw materials and make the mixing more uniform. 2. The first crown gear drives the rotating drum to rotate inside the mixing tank, and causes the L-shaped rod and the first stirring rod to rotate. At the same time, the second crown gear drives the rotating rod to rotate inside the rotating drum, causing the rotating rod to drive the second stirring rod to reverse. This causes the first stirring rod and the second stirring rod to stir in opposite directions, resulting in more uniform mixing and improved mixing efficiency. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the mixing tank of this utility model; Figure 3 This is a schematic diagram of the rotating drum structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the protective frame of this utility model; Figure 5 This is a partial cross-sectional view of the fixing box of this utility model.

[0011] In the diagram: 1. Mixing tank; 2. Shell; 21. First motor; 22. First gear ring; 23. Rotating drum; 24. L-shaped rod; 25. First stirring rod; 26. First crown gear; 27. Rotating rod; 28. Second crown gear; 29. ​​Second stirring rod; 3. Fixed box; 301. Slide groove; 302. Return groove; 31. Fixed frame; 32. Second motor; 33. Threaded rod; 34. Threaded block; 35. U-shaped frame; 36. Rotating shaft; 37. Pressure roller; 38. Second gear ring; 39. Gear plate; 391. Screen; 4. Protective frame; 41. Inclined plate. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Example: Figure 1-5 As shown, this utility model provides a pretreatment device for preparing flexible electromagnetic shielding materials, including a mixing tank 1. A fixing box 3 is fixedly mounted on the top surface of the mixing tank 1. A fixing frame 31 is fixedly mounted on the top surface of the fixing box 3. A second motor 32 is installed on one side of the fixing frame 31. A threaded rod 33 is fixedly mounted on the output end of the second motor 32. A threaded block 34 is threadedly fitted on the outer surface of the threaded rod 33. A U-shaped frame 35 is fixedly mounted on the bottom surface of the threaded block 34. A rotating shaft 36 rotatably passes through the U-shaped frame 35. A pressure roller 37 is fixedly fitted on the outer surface of the rotating shaft 36. A screen 391 is fixedly mounted inside the fixing box 3. The pressure roller 37 rolls on the outer surface of the screen 391. Toothed plates 39 are fixedly provided on both sides of the box 3. A second toothed ring 38 is fixedly sleeved on the outer surface of the rotating shaft 36. The second toothed ring 38 meshes with the toothed plates 39. By turning on the second motor 32, the threaded rod 33 is rotated, which drives the threaded block 34 to slide the U-shaped frame 35. At the same time, the U-shaped frame 35 drives the rotating shaft 36 and the pressure roller 37 to slide in the fixed box 3, causing the second toothed ring 38 on the surface of the rotating shaft 36 to mesh with the toothed plates 39, thereby causing the pressure roller 37 to roll in the screen 391 (the screen 391 is a mesh woven from metal wire or fiber and has mesh holes), which can break up the clumps of raw materials and make the mixing more uniform.

[0014] The fixed box 3 has a sliding groove 301 inside, and the rotating shaft 36 rolls in the sliding groove 301. The fixed box 3 has a return groove 302 inside, and protective frames 4 are fixed on both sides of the fixed box 3. Inclined plates 41 are fixed inside the protective frames 4.

[0015] By adopting the above technical solution, the chute 301 is opened so that the rotating shaft 36 can roll in the chute 301. Some raw materials flow out from the chute 301, are collected by the protective frame 4, and fall onto the inclined plate 41. Then they fall from the inclined surface of the inclined plate 41 into the return trough 302, and can then enter the mixing tank 1 again from the fixed box 3, thus avoiding the waste of raw materials.

[0016] A rotating drum 23 is installed inside the mixing drum 1. An L-shaped rod 24 is fixedly installed on the outer surface of the rotating drum 23. A first stirring rod 25 is fixedly installed on the outer surface of the L-shaped rod 24. A rotating rod 27 passes through the rotating drum 23. A second stirring rod 29 is fixedly sleeved on the outer surface of the rotating rod 27. A housing 2 is installed on the top surface of the mixing drum 1. The rotating drum 23 is rotatably installed inside the housing 2. The rotating rod 27 is rotatably attached to the top of the housing 2. A first crown gear 26 is fixedly installed at the top of the rotating drum 23. A first motor 21 is installed inside the housing 2. A first gear ring 22 is fixedly installed at the output end of the first motor 21. The first gear ring 22 meshes with the first crown gear 26. A second crown gear 28 is fixedly sleeved on the outer surface of the rotating rod 27. The first gear ring 22 meshes with the second crown gear 28.

[0017] By adopting the above technical solution, the first motor 21 is turned on, causing the first gear ring 22 to rotate. The first gear ring 22 drives the first crown gear 26 and the second crown gear 28 to rotate, which in turn causes the first crown gear 26 to drive the rotating drum 23 to rotate inside the mixing tank 1, and causes the L-shaped rod 24 and the first stirring rod 25 to rotate. At the same time, the second crown gear 28 drives the rotating rod 27 to rotate inside the rotating drum 23, causing the rotating rod 27 to drive the second stirring rod 29 to reverse, thereby causing the first stirring rod 25 and the second stirring rod 29 to stir in opposite directions, making the mixing more uniform and improving the mixing efficiency.

[0018] Working principle: First, the filler and polymer matrix are poured into the fixed box 3, so that they fall on the surface of the screen 391. The second motor 32 is turned on, so that the threaded rod 33 rotates and drives the threaded block 34 to drive the U-shaped frame 35 to slide. At the same time, the U-shaped frame 35 drives the rotating shaft 36 and the pressure roller 37 to slide in the fixed box 3, so that the second toothed ring 38 on the surface of the rotating shaft 36 meshes with the toothed plate 39, thereby causing the pressure roller 37 to roll in the screen 391, which can break up the agglomerated raw materials. Some raw materials flow out from the chute 301, are collected by the set protective frame 4, and fall onto the inclined plate 41. Then, they fall from the inclined surface of the inclined plate 41 into the return trough 302, and can then enter the mixing tank 1 again from the fixed box 3. Then, the first motor 21 is turned on, causing the first gear ring 22 to rotate. The first gear ring 22 drives the first crown gear 26 and the second crown gear 28 to rotate, which in turn causes the first crown gear 26 to drive the rotating drum 23 to rotate inside the mixing tank 1, and causes the L-shaped rod 24 and the first stirring rod 25 to rotate. At the same time, the second crown gear 28 drives the rotating rod 27 to rotate inside the rotating drum 23, causing the rotating rod 27 to drive the second stirring rod 29 to reverse, thereby causing the first stirring rod 25 and the second stirring rod 29 to stir in opposite directions, making the mixture more uniform.

[0019] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0020] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pretreatment apparatus for preparing flexible electromagnetic shielding materials, comprising a mixing tank (1), characterized in that: A fixed box (3) is fixedly provided on the top surface of the mixing tank (1). A fixed frame (31) is fixedly provided on the top surface of the fixed box (3). A second motor (32) is installed on one side of the fixed frame (31). A threaded rod (33) is fixedly provided at the output end of the second motor (32). A threaded block (34) is threadedly fitted on the outer surface of the threaded rod (33). A U-shaped frame (35) is fixedly provided on the bottom surface of the threaded block (34). A rotating shaft (36) is rotatably passed through the U-shaped frame (35). A pressure roller (37) is fixedly fitted on the outer surface of the rotating shaft (36). A screen (391) is fixedly provided inside the fixed box (3). The pressure roller (37) rolls on the outer surface of the screen (391). Toothed plates (39) are fixedly provided on both sides of the fixed box (3). A second toothed ring (38) is fixedly fitted on the outer surface of the rotating shaft (36). The second toothed ring (38) meshes with the toothed plate (39).

2. The pretreatment apparatus for preparing flexible electromagnetic shielding materials as described in claim 1, characterized in that, The fixed box (3) has a sliding groove (301) inside, and the rotating shaft (36) rolls in the sliding groove (301).

3. The pretreatment apparatus for preparing flexible electromagnetic shielding materials as described in claim 1, characterized in that, The fixed box (3) is provided with a return groove (302), and protective frames (4) are fixed on both sides of the fixed box (3). Inclined plates (41) are fixed inside the protective frames (4).

4. The pretreatment apparatus for preparing flexible electromagnetic shielding material as described in claim 1, characterized in that, The mixing tank (1) is equipped with a rotating drum (23), and an L-shaped rod (24) is fixedly provided on the outer surface of the rotating drum (23). A first stirring rod (25) is fixedly provided on the outer surface of the L-shaped rod (24).

5. The pretreatment apparatus for preparing flexible electromagnetic shielding material as described in claim 4, characterized in that, A rotating rod (27) is rotatably passed through the rotating drum (23), and a second stirring rod (29) is fixedly sleeved on the outer surface of the rotating rod (27).

6. The pretreatment apparatus for preparing flexible electromagnetic shielding material as described in claim 5, characterized in that, The mixing tank (1) has a housing (2) installed on its top surface. The rotating drum (23) is rotatably disposed inside the housing (2). The rotating rod (27) is rotatably attached to the top of the housing (2).

7. The pretreatment apparatus for preparing flexible electromagnetic shielding material as described in claim 6, characterized in that, The top of the rotating drum (23) is fixedly provided with a first crown gear (26), and a first motor (21) is installed inside the housing (2). The output end of the first motor (21) is fixedly provided with a first gear ring (22), and the first gear ring (22) meshes with the first crown gear (26).

8. The pretreatment apparatus for preparing flexible electromagnetic shielding material as described in claim 7, characterized in that, The outer surface of the rotating rod (27) is fixedly fitted with a second crown gear (28), and the first gear ring (22) meshes with the second crown gear (28).

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