Powder raw material screening device

Abstract

The utility model relates to a powder raw material screening device, which belongs to the technical field of powder raw material screening, and comprises a screening box, a feeding head and a vibration motor, a screening mechanism is arranged in the screening box, and the screening mechanism comprises a support plate fixedly arranged between the inner walls of the front side and the rear side of the screening box; the top of the supporting plate is fixedly provided with two supporting rods, and the outer walls of the tops of the supporting rods are fixedly provided with guide plates. According to the powder raw material screening device, powder raw materials are guided to the left side and the right side under the action of the guide plates, the powder raw materials fall on the two first screening nets correspondingly to be screened, the powder raw materials are prevented from being accumulated on the first screening nets, and the screening quality of the powder raw materials is improved; and the second screening net can guide the screened powder raw materials to the left side and the right side, and the secondary screening quality of the powder raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder raw material screening, in particular to a powder raw material screening device. Background Art

[0002] Powder raw material screening device is a device used to filter and screen raw materials or finished powder materials according to certain specifications and particle sizes to ensure the quality and precision of the final product. Powder raw material screening device is mainly used for screening and filtering powdered materials to remove impurities and ensure product quality and sanitary safety. Powder raw material screening device is an efficient and accurate screening equipment widely used in many industries to ensure product quality and precision.

[0003] According to Chinese patent announcement No. CN212943995U, a raw material screening device for making carbon powder into balls is disclosed, and the technical solution is: "It includes a device shell, a small sieve plate is provided near the top of the device shell, the right end of the small sieve plate is tightly welded to the right inner wall of the device shell, and a plurality of small sieve holes are provided on the small sieve plate, and a large sieve plate is provided on the left side wall plate of the device shell, the left end of the large sieve plate is welded and fixed to the device shell, and a plurality of large sieve holes are provided on the large sieve plate; support plates are provided below the small sieve plate and the large sieve plate, and the support plates are welded and fixed to the inner wall of the device shell, and a vibration motor is provided above the two support plates near the left and right wall plates of the device shell, and the lower end of the vibration motor is fixedly connected to the support plate by screws."

[0004] The above technical solution has the following defects: when the material to be screened enters the interior of the device shell from the feed hopper, all the raw materials will fall on the small sieve plate, and the small sieve plate and the vibration motor will drive the raw materials to move to the lower left. When there is a lot of material and the feeding is urgent, all the raw materials will accumulate on the small sieve plate, resulting in some materials at the top unable to contact the small sieve plate and unable to be fully screened. Some smaller raw materials will fall onto the large sieve plate, affecting the overall screening effect. Therefore, a powder raw material screening device is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a powder raw material screening device, which has the advantages of improving the quality of powder raw material screening and solving the problem that some smaller raw materials fall onto the large sieve plate and affect the overall screening effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a powder raw material screening device, comprising a screening box, a feed head and a vibration motor, wherein a screening mechanism is provided inside the screening box;

[0007] The screening mechanism comprises a support plate fixedly installed between the inner walls of the front and rear sides of the screening box, two support rods are fixedly installed on the top of the support plate, and a guide plate is fixedly installed on the top outer wall of the support rod, and the guide plate and the second screening net are both in an inverted "V" shape, and the left and right sides of the guide plate are respectively located directly above the two first screening nets, and the second screening net is located directly above the third material receiving box, and the length between the left and right inner walls of the third material receiving box is greater than the length between the left and right outer walls of the second screening net, and the left and right inner walls of the screening box are slidably connected with the first screening net, and the left and right inner walls of the screening box are fixedly installed with mounting plates, and the first material receiving box is movably installed on the top of the mounting plate, and the second screening net is fixedly installed between the front and rear inner walls of the screening box, and the fixing plate is fixedly installed between the front and rear inner walls of the screening box, and the second material receiving box is clamped on the top of the fixing plate, and the third material receiving box is movably installed on the bottom inner wall of the screening box, and a screening assembly and a disassembly assembly are provided inside the screening box.

[0008] Furthermore, the screening assembly includes mounting seats respectively fixedly mounted on the left and right inner walls of the screening box, a damping spring is fixedly mounted on the top outer wall of the mounting seat, and a slider is fixedly mounted on one side of the first screening net close to the screening box.

[0009] Furthermore, the inner walls on both sides of the screening box are provided with slide grooves, the sliding blocks are slidably connected inside the slide grooves and are adapted in size, and the sliding blocks are in a "T" shape.

[0010] Furthermore, the disassembly and assembly assembly includes a connecting rod fixedly installed on the outer walls of the two first material receiving boxes on the opposite side, and the limiting seats are fixedly installed on the outer walls of the two connecting rods on the opposite side. The left and right outer walls of the screening box are fixedly installed with mounting blocks, and the internal sliding connection of the mounting blocks is connected to the limiting clamping rod.

[0011] Furthermore, mounting holes are provided on the inner walls on both sides of the screening box, the first material receiving box and the connecting rod are slidably connected inside the mounting holes and are adapted in size, limiting holes are provided inside the limiting seat and the mounting block, and the limiting clamping rod is slidably connected inside the limiting holes and are adapted in size.

[0012] Furthermore, a slot is provided on the top of the fixing plate, and the second screening net is connected to the inside of the slot and has a size matching that of the second screening net.

[0013] Furthermore, two positioning seats are fixedly installed inside the bottom of the screening box, and inclined plates are fixedly installed on the outer walls on the opposite sides of the two positioning seats. The third material receiving box is movably installed between the two positioning seats, and the bottom of the inclined plate and the top of the third material receiving box are located in the same plane.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The powder raw material screening device guides the powder raw material to the left and right sides through the action of the guide plate, and the powder raw material falls on two first screening nets for screening respectively, thereby preventing the powder raw material from accumulating on the first screening net, thereby improving the quality of the powder raw material screening. At the same time, through the action of the second screening net and the second screening net being in an inverted "V" shape, the second screening net will guide the screened powder raw material to the left and right sides, thereby improving the quality of the secondary screening of the powder raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Look at the structural diagram;

[0018] Figure 3 It is a schematic diagram of the connection structure between the first material receiving box and the connecting rod of the utility model.

[0019] In the figure: 1. screening box; 2. feed head; 3. vibration motor; 4. support plate; 5. support rod; 6. guide plate; 7. mounting seat; 8. damping spring; 9. first screening net; 10. slider; 11. mounting plate; 12. first receiving box; 13. connecting rod; 14. limit seat; 15. mounting block; 16. limit clamping rod; 17. second screening net; 18. fixing plate; 19. second receiving box; 20. third receiving box; 21. positioning seat; 22. inclined plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] For example, see Figure 1-3 A powder raw material screening device in this embodiment includes a screening box 1, a feed head 2 and a vibration motor 3, and a screening mechanism is provided inside the screening box 1.

[0022] The screening mechanism includes a support plate 4 fixedly installed between the front and rear inner walls of the screening box 1, two support rods 5 are fixedly installed on the top of the support plate 4, and a guide plate 6 is fixedly installed on the top outer wall of the support rod 5. The left and right inner walls of the screening box 1 are slidably connected with the first screening net 9, the left and right inner walls of the screening box 1 are fixedly installed with mounting plates 11, and the top of the mounting plate 11 is movably installed with a first material receiving box 12, a second screening net 17 is fixedly installed between the front and rear inner walls of the screening box 1, and a fixing plate 18 is fixedly installed between the front and rear inner walls of the screening box 1. A card slot is opened on the top of the fixing plate 18, and the second screening net 17 is carded inside the card slot and is adapted in size.

[0023] A second material receiving box 19 is clamped on the top of the fixed plate 18, and a third material receiving box 20 is movably installed on the bottom inner wall of the screening box 1. The guide plate 6 and the second screening net 17 are both in an inverted "V" shape. The left and right sides of the guide plate 6 are respectively located directly above the two first screening nets 9, and the second screening net 17 is located directly above the third material receiving box 20. The length between the left and right inner walls of the third material receiving box 20 is greater than the length between the left and right outer walls of the second screening net 17. A screening assembly and a disassembly assembly are provided inside the screening box 1.

[0024] The screening assembly includes mounting seats 7 respectively fixedly mounted on the inner walls of the left and right sides of the screening box 1, a damping spring 8 is fixedly mounted on the top outer wall of the mounting seat 7, a slider 10 is fixedly mounted on the side of the first screening net 9 close to the screening box 1, and slide grooves are provided on the inner walls of the left and right sides of the screening box 1, the slider 10 is slidably connected to the inside of the slide groove and is adapted in size, and the slider 10 is in a "T" shape.

[0025] The disassembly and assembly components include a connecting rod 13 fixedly installed on the outer walls of the two first material receiving boxes 12 on the opposite sides, and a limiting seat 14 is fixedly installed on the outer walls of the two connecting rods 13 on the opposite sides. The left and right outer walls of the screening box 1 are fixedly installed with mounting blocks 15, and the inner part of the mounting blocks 15 is slidably connected to the limiting clamping rod 16. The left and right inner walls of the screening box 1 are provided with mounting holes, the first material receiving box 12 and the connecting rod 13 are slidably connected to the inside of the mounting holes and are of matching sizes, and the limiting seats 14 and the mounting blocks 15 are provided with limiting holes inside, and the limiting clamping rod 16 is slidably connected to the inside of the limiting holes and is of matching sizes.

[0026] In this embodiment, a box door is provided on the front side of the screening box 1 .

[0027] In this embodiment, the feed head 2 is fixedly installed on the top of the screening box 1 and located at the midline of the guide plate 6, so that the powder raw material is evenly guided to the left and right sides. There are two vibration motors 3 and they are fixedly installed on the left and right outer walls of the screening box 1 respectively.

[0028] In this embodiment, the first material receiving box 12 is limited by the cooperation of the connecting rod 13 , the limiting seat 14 , the mounting block 15 and the limiting clamping rod 16 , so as to facilitate the removal or installation of the first material receiving box 12 inside the screening box 1 .

[0029] In this embodiment, the number of meshes of the first sieve net 9 is greater than the number of meshes of the second sieve net 17.

[0030] Embodiment 2 is based on Embodiment 1 and is provided with a positioning seat 21 and an inclined plate 22 . The positioning seat 21 facilitates the positioning and installation of the third receiving box 20 , and the inclined plate 22 facilitates the guidance of the powder material of the second screening net 17 to the interior of the third receiving box 20 .

[0031] The working principle of the above embodiment is:

[0032] First, the powder raw material is input into the interior of the screening box 1 through the feed head 2 and is located on the top of the guide plate 6, and then the vibration motor 3 is started. At this time, the powder raw material will move to the lower left and lower right through the action of the guide plate 6. At this time, part of the powder raw material will fall on the top of the first screening net 9 on the left, and the other part will fall on the top of the first screening net 9 on the right. At this time, the first screening net 9 begins to screen the powder raw material. At this time, the smaller powder raw material will fall into the interior of the first receiving box 12, and the larger powder raw material will be guided to the second screening net 17. At this time, the powder raw material is screened by the second screening net 17 and then falls into the interior of the second receiving box 19. Finally, the larger powder raw material will fall into the interior of the third receiving box 20. At this time, the powder raw material screening work is completed.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder material screening device, comprising a screening box (1), a feed head (2) and a vibration motor (3), characterized in that: The screening box (1) is provided with a screening mechanism inside; The screening mechanism comprises a support plate (4) fixedly mounted between the inner walls of the front and rear sides of the screening box (1); two support rods (5) are fixedly mounted on the top of the support plate (4); a guide plate (6) is fixedly mounted on the outer wall of the top of the support rod (5); the guide plate (6) and the second screening net (17) are both in an inverted "V" shape; the left and right sides of the guide plate (6) are respectively located directly above the two first screening nets (9); the second screening net (17) is located directly above the third material receiving box (20); the length between the left and right inner walls of the third material receiving box (20) is greater than the length between the left and right outer walls of the second screening net (17) The left and right inner walls of the screening box (1) are both slidably connected with a first screening net (9); the left and right inner walls of the screening box (1) are fixedly installed with a mounting plate (11); the top of the mounting plate (11) is movably installed with a first material receiving box (12); a second screening net (17) is fixedly installed between the front and rear inner walls of the screening box (1); a fixing plate (18) is fixedly installed between the front and rear inner walls of the screening box (1); the top of the fixing plate (18) is clamped with a second material receiving box (19); a third material receiving box (20) is movably installed on the bottom inner wall of the screening box (1); and a screening component and a disassembly component are provided inside the screening box (1).

2. A powder material screening device according to claim 1, characterized in that: The screening assembly comprises mounting seats (7) respectively fixedly mounted on the inner walls of the left and right sides of the screening box (1); a damping spring (8) is fixedly mounted on the top outer wall of the mounting seat (7); and a sliding block (10) is fixedly mounted on the side of the first screening net (9) close to the screening box (1).

3. A powder material screening device according to claim 2, characterized in that: The inner walls on both sides of the screening box (1) are provided with sliding grooves, and the sliding block (10) is slidably connected inside the sliding grooves and is adapted in size, and the sliding block (10) is in a "T" shape.

4. A powder material screening device according to claim 1, characterized in that: The disassembly and assembly assembly comprises a connecting rod (13) fixedly mounted on the outer walls of the two first material receiving boxes (12) on the opposite sides, a limiting seat (14) fixedly mounted on the outer walls of the two connecting rods (13) on the opposite sides, and a mounting block (15) fixedly mounted on the outer walls of the left and right sides of the screening box (1), and the mounting block (15) is internally slidably connected to a limiting clamping rod (16).

5. A powder material screening device according to claim 4, characterized in that: The inner walls on both sides of the screening box (1) are provided with mounting holes, the first material receiving box (12) and the connecting rod (13) are slidably connected inside the mounting holes and are of matching sizes, the limiting seat (14) and the mounting block (15) are provided with limiting holes inside, and the limiting clamping rod (16) is slidably connected inside the limiting holes and is of matching sizes.

6. A powder material screening device according to claim 1, characterized in that: A slot is provided on the top of the fixing plate (18), and the second screening net (17) is snap-fitted into the slot and has a matching size.

7. A powder material screening device according to claim 1, characterized in that: Two positioning seats (21) are fixedly installed inside the bottom of the screening box (1), and an inclined plate (22) is fixedly installed on the outer wall of the two positioning seats (21) on the opposite side. The third material receiving box (20) is movably installed between the two positioning seats (21), and the bottom of the inclined plate (22) and the top of the third material receiving box (20) are located in the same plane.

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