Screening assembly and powder screening device

Abstract

The utility model relates to the technical field of powder screening devices, and discloses a powder screening device which comprises a base, a second mounting plate, a pre-screening box and a pre-screening assembly, and the pre-screening assembly is located in the pre-screening box. A collecting box is arranged at the top of the base, a guide hopper is arranged at the top of the collecting box, a first mounting plate is arranged at the top of the guide hopper, second mounting plates are arranged at the four corners of the top of the first mounting plate, and a pre-screening box body is arranged at the tops of the second mounting plates. According to the screening assembly and the powder screening device, materials are accurately guided through a first guide plate in the pre-screening assembly, the materials are guided to be evenly distributed on a screen, therefore, preliminary screening of the materials is achieved, the burden of follow-up screening work is effectively relieved, meanwhile, due to the fact that pressing pieces and pressing springs are used on the two sides of the screen, the screening efficiency is improved, and the screening efficiency is improved. The stability of the screen is ensured, and a user can conveniently and quickly replace the screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder screening device technical field, specifically is a screening subassembly and powder screening device. BACKGROUND

[0002] The powder screening device is a kind of equipment for screening and grading powder material, it can finely grade and screen powder material, classify powder material according to particle size, remove impurities and particles that do not meet requirements, to obtain fine powder or uniform powder product that meet requirements.

[0003] At present, the existing powder screening device due to screen mesh tube usually adopts the shape of cylindrical, due to the restriction of cylindrical structure, material is easy to accumulate in the corner of screen mesh tube, these accumulated materials are difficult to screen through screen mesh, to reduce the uniformity and efficiency of screening, in addition, the fixing mode of the screen of the existing screening device mostly adopts bolt and is fixed, this kind of fixed mode although guarantee the stability of screen to some extent, but brings inconvenience in the replacement of screen.Therefore, the utility model provides a screening subassembly and powder screening device. UTILITY MODEL CONTENT

[0004] (One) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a screening subassembly and powder screening device, has the advantages such as efficient screening, reduces blockage, solves the problem that screening is easy to block.

[0006] (Two) technical scheme

[0007] To realize the above-mentioned efficient screening, reduce the purpose of blockage, the utility model provides the following technical scheme:

[0008] The utility model provides a powder screening device in one aspect, including base, second mounting plate, pre-screening box, pre-screening assembly, pre-screening assembly is located in pre-screening box interior;

[0009] The base top is equipped with collecting box, the collecting box top is equipped with guide chute, the guide chute top is equipped with first mounting plate, the first mounting plate top four corner positions are equipped with second mounting plate, and the second mounting plate top is equipped with pre-screening box.

[0010] As a preferred technical scheme of the utility model, the pre-screening assembly includes first flow guide plate located at both sides of pre-screening box, and the bottom region of the first flow guide plate at both sides is equipped with mounting seat, the mounting seat is located at both sides of the top central region of pre-screening box inner wall, and the screen is equipped between the mounting seat at both sides.

[0011] As a preferred technical scheme of the utility model, the two sides of the top of the inner wall of the pre-screening box are provided with fixed plates towards the two sides of the mounting base, one side of the fixed plate towards the mounting base is provided with a pressing part, the pressing part is internally provided with a pressing spring, and one side of the pressing spring towards the mounting base is provided with a connecting rod.

[0012] As a preferred technical scheme of the utility model, the top of the first mounting plate is provided with a fixed rod at each corner position, the fixed rod penetrates the second mounting plate and extends above it, and one end of the top of the fixed rod is provided with a locking part.

[0013] The utility model discloses a kind of screening assemblies, which is assembled in the powder screening device described above, and the screening assembly includes screen box, driving motor;

[0014] The screen box is internally provided with screen cylinder, one side of the screen cylinder is provided with driving motor, and the other side of the screen cylinder is provided with discharge valve, and the bottom of the discharge valve is provided with support column.

[0015] As a preferred technical scheme of the utility model, the two sides of the inner wall of the screen box are provided with second baffle, and the bottom between the second baffles of two sides is provided with fixed part, the inside of the fixed part is provided with rotating part, the inside of the rotating part is provided with stirring element, and the inner wall of the rotating part is circumferentially distributed with spoiler around stirring element.

[0016] (Three) beneficial effects

[0017] Compared with prior art, the utility model provides a kind of screening assembly and powder screening device, with following beneficial effects:

[0018] The screening assembly and powder screening device, the first baffle in pre-screening assembly is accurately guided to material, and material is uniformly distributed on screen, so as to realize the preliminary screening of material, effectively reduce the burden of subsequent screening work, meanwhile, the use of pressing part and pressing spring on the two sides of screen ensures the stability of screen, also facilitates user to replace screen quickly, in addition, the setting of screen cylinder in screen box, in cooperation with the use of bottom stirring element, further promotes the fluidity and mixing uniformity of material, effectively reduces the occurrence of jamming phenomenon, so that screening process is more smooth, and screening effect is also significantly improved. ACCURACY OF DRAWINGS

[0019] Fig. 1 It is the structure schematic diagram of the utility model;

[0020] Fig. 2 It is the internal structure schematic diagram of pre-screening box of the utility model;

[0021] Fig. 3 It is the internal structure schematic diagram of screen box of the utility model.

[0022] In the figure: 1, base; 2, collection box; 3, guide hopper; 4, first mounting plate; 5, second mounting plate; 6, pre-screening box; 7, first guide plate; 8, mounting seat; 9, screen; 10, fixed plate; 11, pressing part; 12, pressing spring; 13, connecting rod; 14, fixed rod; 15, locking part; 16, screen box; 17, screen cylinder; 18, driving motor; 19, discharge valve; 20, support column; 21, second guide plate; 22, fixed part; 23, rotating part; 24, stirring element; 25, spoiler part. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figs. 1-3 ,

[0027] Embodiment one: a powder screening device, comprising a base 1, a second mounting plate 5, a pre-screening box 6, a pre-screening assembly, the pre-screening assembly is located inside the pre-screening box 6, the base 1 is used as the support structure of the whole screening device, used to bear the weight of other components, the top of the base 1 is provided with a collection box 2, which is used to collect the screened powder, the top of the collection box 2 is provided with a guide hopper 3, which guides the powder into the collection box, the top of the guide hopper 3 is provided with a first mounting plate 4, the top of the first mounting plate 4 is provided with a second mounting plate 5 at the four corner positions, the top of the second mounting plate 5 is provided with a pre-screening box 6, which is used to accommodate the pre-screening assembly and preliminarily screen the powder.

[0028] It should be noted that the collection box 2 and the pre-screening box 6 are made of high molecular material, which not only improves the corrosion resistance and wear resistance of the device, but also reduces the overall weight, facilitating transportation and installation.

[0029] In this embodiment, the pre-screening assembly includes first flow guides 7 located on both sides of the pre-screening box 6, which are used to guide the flow direction of the powder in the pre-screening box. The bottom area of the first flow guides 7 on both sides is provided with a mounting seat 8, which is used to support the structure of the screen mesh to ensure stable operation of the screen mesh. The mounting seat 8 is located on both sides of the central area of the inner wall top of the pre-screening box 6. A screen mesh 9 is arranged between the mounting seats 8 on both sides, which is used to screen the powder and separate particles of different sizes.

[0030] It should be noted that after the powder guide pipe enters the pre-screening box 6, it will first encounter the first flow guides 7. The first flow guides 7 are used to guide the flow direction of the powder to the screen mesh 9 and prevent the powder from splashing everywhere in the pre-screening box 6. The powder is pre-screened by the screen mesh 9, and the pre-screened powder continues to flow to the next stage of the screening assembly, while larger particles and impurities are retained on the screen mesh 9.

[0031] In this embodiment, the inner wall top of the pre-screening box 6 is provided with a fixed plate 10 on both sides towards the mounting seat 8. The side of the fixed plate 10 towards the mounting seat 8 is provided with a pressing member 11. The fixed plate 10 is used to fix the pressing member to ensure stable installation of the screen mesh. The pressing member 11 is provided with a pressing spring 12 inside. The pressing member 11 applies pressure to the screen mesh through the pressing spring to maintain the tension state of the screen mesh. The pressing spring 12 is used to provide the required elastic force for the pressing member to ensure the stability of the screen mesh. The side of the pressing spring 12 towards the mounting seat 8 is provided with a connecting rod 13, and the other end of the connecting rod 13 is connected with the mounting seat 8. The connecting rod 13 is used to connect the pressing member and the mounting seat to transmit the pressing force.

[0032] In this embodiment, the top of the first mounting plate 4 is provided with a fixed rod 14 for fixing and supporting the structure of the screening device, the fixed rod 14 penetrates the second mounting plate 5 and extends above it, and the top of the fixed rod 14 is provided with a locking piece 15 for fixing the fixed rod to prevent it from loosening.

[0033] In this embodiment, the top of the first mounting plate 4 is provided with a fixed rod 14 for fixing and supporting the structure of the screening device, the fixed rod 14 penetrates the second mounting plate 5 and extends above it, and the top of the fixed rod 14 is provided with a locking piece 15 for fixing the fixed rod to prevent it from loosening.

[0034] In this embodiment, the inside wall of the screen box 16 is provided with a second guide plate 21 on both sides, the second guide plate 21 is used to guide the flow direction of the powder in the screen box, and the bottom between the two second guide plates 21 is provided with a fixed part 22, which is a structure for fixing the rotating part to ensure stable work of the stirring element, the inside of the fixed part 22 is provided with a rotating part 23, which is used to accommodate the stirring element, and the stirring element is used to stir and disperse the powder by rotating, the bottom of the rotating part 23 is provided with a rotating motor for providing power for the rotating part 23, the rotating motor is connected to the bottom of the screen box 16 through a connecting shaft, the inside of the rotating part 23 is provided with a stirring element 24, which is used to stir the powder in the rotating part to improve the screening efficiency, and the inside wall of the rotating part 23 is circumferentially distributed around the stirring element 24 with a turbulence part 25, which further improves the screening efficiency by changing the flow direction of the powder.

[0035] It needs to be explained: the pre-screened powder enters the screen box 16 and falls on the screen cylinder 17, the screen cylinder 17 is a rotating screening element, the surface of which is covered with small screen holes for further screening of the powder, the driving motor 18 is started, the screen cylinder 17 is rotated through the transmission device, the rotating speed of the screen cylinder 17 can be adjusted according to the actual demand to achieve the best screening effect, in the rotating process of the screen cylinder 17, the powder is subjected to the action of centrifugal force, the smaller particles are screened out through the screen holes and fall into the collecting box 2, while the larger particles continue to stay on the screen cylinder 17 and are gradually pushed to the outlet with the rotation of the screen cylinder 17, the design of the second flow guide plate 21 helps to guide the screened powder to flow to the collecting box 2, and prevents the powder from accumulating in the screen box 16, in the screening process, the stirring element 24 inside the rotating part 23 will be started to stir and disperse the powder.

[0036] The beneficial effects of the above embodiments are:

[0037] The screening assembly and the powder screening device, through the first flow guide plate 7 in the pre-screening assembly, the material is accurately guided, and the material is uniformly distributed on the screen 9, so that the preliminary screening of the material is realized, and the burden of subsequent screening work is effectively reduced, at the same time, the use of the pressing piece 11 and the pressing spring 12 on both sides of the screen 9 ensures the stability of the screen 9, and also facilitates the user to quickly replace the screen, in addition, the screen cylinder 17 in the screen box 16 is arranged, and the bottom stirring element 24 is used, which further promotes the flowability and mixing uniformity of the material, effectively reduces the occurrence of the blocking phenomenon, makes the screening process more smooth, and the screening effect is also significantly improved.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder screening device, comprising a base, a second mounting plate, a pre-screening box, and a pre-screening component, wherein the pre-screening component is located inside the pre-screening box; Its features are: The base is provided with a collection box on top, the collection box is provided with a guide hopper on top, the guide hopper is provided with a first mounting plate on top, the first mounting plate is provided with a second mounting plate at the four corners of the top, and the second mounting plate is provided with a pre-screening box on top.

2. The powder screening device according to claim 1, characterized in that: The pre-screening component includes first guide plates located on both sides of the pre-screening box. The bottom area of ​​the first guide plates on both sides is provided with mounting seats. The mounting seats are located on both sides of the top central area of ​​the inner wall of the pre-screening box, and a screen is provided between the mounting seats on both sides.

3. The powder screening device according to claim 2, characterized in that: The top of the inner wall of the pre-screening box is provided with fixing plates on both sides facing the mounting base. The fixing plate is provided with a clamping component on the side facing the mounting base. The clamping component is provided with a clamping spring inside. The clamping spring is provided with a connecting rod on the side facing the mounting base.

4. The powder screening device according to claim 1, characterized in that: The first mounting plate has a fixing rod at each of the four top corners. The fixing rod penetrates the second mounting plate and extends above it. A locking element is provided at the top end of the fixing rod.

5. A screening component, which is used in a powder screening device according to any one of claims 1-4, the screening component comprising a screen box and a drive motor; Its features are: The screen box is equipped with a screen cylinder inside. A drive motor is provided on one side of the screen cylinder, and a discharge valve is provided on the other side of the screen cylinder. A support column is provided at the bottom of the discharge valve.

6. A screening component according to claim 5, characterized in that: The inner wall of the screen box is provided with second guide plates on both sides, and a fixed part is provided at the bottom between the second guide plates on both sides. The fixed part is provided with a rotating part, and the rotating part is provided with a stirring element. The inner wall of the rotating part is surrounded by turbulence parts around the stirring element.

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