Silver powder linear screen box

Abstract

The utility model provides a linear screen box for silver powder. The linear screen box for the silver powder comprises a bottom box, a screen frame, an upper box, a cover plate and a bolt assembly. A screen frame fixing frame is arranged at the top of the bottom box, an upper box is stacked above the bottom box and fixed through a bolt assembly, and the upper box presses a screen frame placed in the screen frame fixing frame to fix the screen frame. A cover plate fixing frame for placing a cover plate is arranged at the top of the upper box; the screen frame is composed of a supporting frame and a silver net, and the silver net is tightly attached to the supporting frame. A feeding hole is formed in the cover plate; the bolt assembly comprises a double-end bolt, butterfly nuts and a gasket, and the bottom box and the upper box are fixedly connected through the butterfly nuts at the two ends of the locking bolt. The design that the bottom box and the upper box are fixed through the bolt assembly is adopted, the screen frame is convenient to replace, and a user can conveniently tighten and tighten the bolt assembly through the butterfly nut; and by adopting the design of wood parts and silver nets, other metal powder is effectively prevented from being mixed in the screening process, and the purity and quality of silver powder are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening equipment, in particular to a silver powder linear screen box. Background Art

[0002] Silver powder is a precious metal powder widely used in the electronics industry. During silver powder processing, screening is a crucial step in ensuring subsequent processing and product quality. Application number CN217411453U discloses a silver powder screening machine equipped with a vibrating motor to vibrate the screening frame, preventing clogging of the silver powder during screening.

[0003] However, the device is complicated to disassemble and inconvenient to replace the screen, and is inefficient when encountering working conditions that require frequent changes in the size of the screened particles. Utility Model Content

[0004] To address the above issues, the present invention provides a linear silver powder screen box, comprising a base box, a screen frame, an upper box, a cover plate, and a bolt assembly. The box features a screen frame fixing frame on top, a top box stacked atop the base box, and secured via bolts. The upper box presses against the screen frame, which is placed within the fixing frame, securing it. A cover plate fixing frame is also provided on top of the upper box for receiving the cover plate. To replace the screen frame or clean residual silver powder, the bolt assembly is released, allowing the base and upper boxes to be opened for replacement or removal.

[0005] Furthermore, the screen frame is composed of a support frame and a silver mesh, which is tightly fitted on the support frame to ensure the accuracy and stability of screening. The silver mesh is made of all silver material to avoid mixing other metals during the screening process.

[0006] Furthermore, the cover plate is provided with a feed port to facilitate the addition of silver powder.

[0007] Furthermore, the interior of the bottom box is a bottomed cavity. A fine powder outlet is provided at the bottom, and the fine powder outlet is connected to the cavity below the sieve frame fixing frame. The sieved fine powder enters the fine powder outlet.

[0008] Furthermore, the interior of the upper box is a bottomless cavity, the horizontal shape of which is a square smaller than the size of the screen frame. The cavity extends into a powder outlet channel, and the junction between the powder outlet channel and the cavity is narrower than the powder outlet channel, thereby reducing the probability of insufficiently screened silver powder entering the cavity.

[0009] Furthermore, a coarse powder outlet is provided at the bottom of the bottom box, and the coarse powder outlet passes through the bottom box and is connected to the powder outlet channel of the upper box. The sieved coarse powder enters the coarse powder cavity.

[0010] Furthermore, the bolt assembly includes stud bolts, butterfly nuts, and washers. Multiple screw holes are vertically penetrated at the horizontal relative positions of the bottom and upper boxes. The stud bolts are inserted into the screw holes. The bottom and upper boxes are fixedly connected by tightening the butterfly nuts at both ends of the bolts. The washers are placed between the butterfly nuts and the box bodies. The butterfly nuts ensure that the bolt assembly secures the bottom and upper boxes firmly while being easy to tighten and loosen.

[0011] Furthermore, the gasket at the upper end of the stud bolt is rectangular, and can clamp the cover plate when the long end of the gasket faces the cover plate, but cannot clamp the cover plate when the short end of the gasket faces the cover plate.

[0012] Furthermore, the screen frame adopts a wooden integrated field-shaped support frame, the shape and structure of which are designed according to the screening needs. Multiple sets of screen frames of different specifications can be prepared, which are convenient for replacement at any time during use.

[0013] The utility model has the following beneficial effects:

[0014] 1) The design of fixing the bottom box and the upper box with bolt assemblies makes it easy to replace the screen frame and clean the residual silver powder in the screen box. The butterfly nut is used to facilitate the user to tighten the bolt assembly.

[0015] 2) By adopting wooden parts and silver mesh design, the use of metal parts is avoided, effectively preventing other metal powders from mixing into the screening process, thereby improving the purity and quality of silver powder; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the utility model;

[0017] Figure 2 This is a grid structure diagram of the utility model;

[0018] Figure 3 This is a structural diagram of the bottom box and upper box of the utility model;

[0019] Figure 4 This is a structural diagram of the cover plate of the utility model;

[0020] Figure 5 It is a partial structural diagram of the utility model;

[0021] In the figure: 1- bottom box; 2- screen frame; 3- upper box; 4- cover plate; 11- screen frame fixing frame; 12- fine powder outlet; 13- coarse powder outlet; 21- support frame; 22- silver mesh; 31- wooden box; 32- cover plate fixing frame; 33- powder outlet channel; 41- feed port; 51- screw hole; 52- stud bolt; 53- butterfly nut; 54- gasket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-5 The present invention provides a silver powder linear screen box, comprising: a bottom box 1, a screen frame 2, an upper box 3, a cover plate 4, and a bolt assembly. The bottom box 1 is characterized in that a screen frame fixing frame 11 is provided on top of the bottom box 1. The upper box 3 is stacked on top of the bottom box 1 and secured via a bolt assembly. The upper box 3 presses against the screen frame 2 placed within the screen frame fixing frame 11 to secure it. A cover plate fixing frame 32 is provided on top of the upper box 3 for receiving the cover plate 4. When the screen frame 2 needs to be replaced or residual silver powder needs to be cleaned, the bolt assembly is released, and the bottom box 1 and upper box 3 can be opened to replace the screen frame 2 or clean residual silver powder.

[0025] Furthermore, the screen frame 2 is composed of a support frame 21 and a silver mesh 22, and the silver mesh 22 is tightly fitted on the support frame 21. To ensure the accuracy and stability of screening, the silver mesh 22 is made of all silver material to avoid mixing other metals into the screening process.

[0026] Furthermore, the cover plate 4 is provided with a feed port 41 to facilitate the addition of silver powder.

[0027] Furthermore, the interior of the bottom box 1 is a bottomed cavity. A fine powder outlet 12 is provided at the bottom, and the fine powder outlet 12 is connected to the cavity below the sieve frame fixing frame 11. The sieved fine powder enters the fine powder outlet 12.

[0028] Furthermore, the interior of the upper box 3 is a bottomless cavity, which is horizontally shaped like a square smaller than the size of the screen frame 2. A powder outlet channel 33 extends from the cavity, and the connection between the powder outlet channel 33 and the cavity is narrower than the powder outlet channel, thereby reducing the probability of insufficiently screened silver powder entering the cavity.

[0029] Furthermore, a coarse powder outlet 13 is provided at the bottom of the bottom box 1, and the coarse powder outlet 13 passes through the bottom box 1 and is connected to the powder outlet channel 33 of the upper box 3. The sieved coarse powder enters the coarse powder cavity 13.

[0030] Furthermore, the bolt assembly includes stud bolts 52, butterfly nuts 53, and washers 54. Multiple screw holes 51 vertically penetrate the horizontal relative positions of the bottom box 1 and the upper box 3. The stud bolts 52 are inserted into the screw holes 51. The bottom box 1 and the upper box 3 are fixedly connected by the butterfly nuts 53 at both ends of the bolts. The washers 54 are placed between the butterfly nuts 53 and the box bodies. The butterfly nuts ensure that the bolt assembly secures the bottom box and the upper box and are easy to tighten and loosen.

[0031] Furthermore, the gasket 54 at the upper end of the stud bolt 52 is rectangular. When the long end of the gasket 54 faces the cover plate 4 , it can clamp the cover plate 4 , but when the short end of the gasket 54 faces the cover plate 4 , it cannot clamp the cover plate 4 .

[0032] Furthermore, the screen frame 2 adopts a wooden integrated field support frame 21, the shape and structure of which are designed according to the screening needs. Multiple groups of screen frames 2 of different specifications can be prepared for easy replacement during use.

[0033] Working principle: When using this device, Figure 1 As shown, the screen frame 2 is fixed to the screen frame 11 of the bottom box 1, and silver powder is poured into the silver powder linear screen box through the feed port 41 for screening. When the screen frame 2 needs to be replaced or residual silver powder needs to be cleaned, the bolt assembly is loosened, and the bottom box 1 and upper box 3 are opened to replace the screen frame 2 or clean residual silver powder.

[0034] like Figure 3 As shown, the sieved fine powder and coarse powder are discharged through the fine powder outlet 12 and the coarse powder outlet 13 respectively.

[0035] like Figure 4 As shown, the bolt assembly uses a butterfly nut, which can be tightened or loosened without the aid of tools, making it easy to loosen the bolt assembly.

[0036] The utility model adopts a design of fixing the bottom box and the upper box with a bolt assembly, which makes it easy to replace the screen frame and clean the residual silver powder in the screen box. The butterfly nut is used to facilitate the user to loosen and tighten the bolt assembly. The design of wooden parts and silver mesh effectively prevents other metal powders from mixing into the screening process, thereby improving the purity and quality of the silver powder.

[0037] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A silver powder linear screen box, comprising: A bottom box (1), a screen frame (2), an upper box (3), a cover plate (4) and a bolt assembly, characterized in that: a screen frame fixing frame (11) is provided on the top of the bottom box (1); the upper box (3) is stacked on the bottom box (1) and fixed by a bolt assembly; the upper box (3) presses the screen frame (2) placed in the screen frame fixing frame (11) to fix it; a cover plate fixing frame (32) is provided on the top of the upper box (3) for placing the cover plate (4); The bolt assembly comprises a stud bolt (52), a butterfly nut (53) and a gasket (54); the horizontal relative positions of the bottom box (1) and the upper box (3) are vertically penetrated by a plurality of screw holes (51); the stud bolt (52) is inserted into the screw hole (51); the bottom box (1) and the upper box (3) are fixedly connected by tightening the butterfly nuts (53) at both ends of the bolt; the gasket (54) is cushioned between the butterfly nut (53) and the box.

2. The silver powder linear screen box according to claim 1, characterized in that: The screen frame (2) is composed of a support frame (21) and a silver mesh (22), and the silver mesh (22) is tightly fitted on the support frame (21).

3. The silver powder linear screen box according to claim 1, characterized in that: The cover plate (4) is provided with a feed port (41).

4. The silver powder linear screen box according to claim 1, characterized in that: The interior of the bottom box (1) is a bottomed cavity, and a fine powder outlet (12) is provided at the bottom, and the fine powder outlet (12) is connected to the cavity of the bottom box (1).

5. The silver powder linear screen box according to claim 1, characterized in that: The interior of the upper box (3) is a bottomless cavity, and its horizontal shape is a square smaller than the size of the screen frame (2). The cavity extends a powder outlet channel (33), and the connection between the powder outlet channel (33) and the cavity is narrower than the powder outlet channel.

6. The silver powder linear screen box according to claim 5, characterized in that: A coarse powder outlet (13) is provided at the bottom of the bottom box (1), and the coarse powder outlet (13) passes through the bottom box (1) and is connected to a powder outlet channel (33) of the upper box (3).

7. The silver powder linear screen box according to claim 5, characterized in that: The upper end gasket (54) of the stud bolt (52) is rectangular. When the long end of the gasket (54) faces the cover plate (4), it can clamp the cover plate (4). When the short end of the gasket (54) faces the cover plate (4), it is not enough to clamp the cover plate (4).

8. The silver powder linear screen box according to claim 1, characterized in that: The screen frame (2) adopts a wooden integrated field-shaped support frame (21), and its shape and structure are designed according to screening needs.

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