A precisely adjustable particle sizing device

Abstract

The utility model relates to the technical field of screening, disclose a kind of precision adjustable granularity screening device, comprising: mounting bracket, and install multiple sets of screening structure on mounting bracket, multiple sets of screening structure are set in parallel with staggered, and the material of conveying is carried out multistage screening by multiple sets of screening structure set with staggered;The side of mounting bracket is provided with multiple sets of the positioning mechanism fastening to screening structure;Through the cooperation between mounting bracket and multiple sets of screening structure, through mounting bracket, it is convenient to carry out staggered distribution to multiple sets of screening mechanism, and then material can be screened gradually, by overturning to multiple sets of screening mechanism, screening mechanism can be switched in screening state and material guiding state, to facilitate the state of screening structure to be replaced according to screening requirement, to facilitate the screening granularity of decoration to be switched, without replacing different granularity screening device, to improve the practicability of device, improve the efficiency of material screening.

Description

Technical Field

[0001] This utility model relates to the field of screening technology, specifically to a precise and adjustable particle size screening device. Background Technology

[0002] Mineral products refer to products that have been extracted or processed from mineral resources and have been removed from their natural state. During the mining and processing, molecular sieves are usually used to screen materials of different particle sizes. Existing molecular sieves typically use one or more screens to screen materials to obtain materials of the same particle size. The remaining materials that do not meet the screening size are then sent to a crusher for crushing and further screening. This method can only screen materials of the same particle size.

[0003] In existing screening devices, when screening mineral materials, if it is necessary to temporarily change the screening particle size, the equipment must be stopped and the material fed to other screening devices. It is not possible to change different screening structures according to the particle size of the material, which reduces the screening efficiency. Therefore, we need to propose a precise and adjustable particle size screening device. Utility Model Content

[0004] The purpose of this invention is to provide a precise and adjustable particle size screening device. By setting an independently adjustable screening structure, the screening structure can be flipped to block the falling of materials of the corresponding particle size, thereby collecting materials within only one particle size range without the need to replace the screening device, thus improving the practicality of the device and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precisely adjustable particle size screening device, comprising:

[0006] The mounting frame and multiple sets of screening structures mounted on the mounting frame are arranged in a staggered parallel manner, and the conveyed material is screened in multiple stages through the multiple sets of staggered screening structures.

[0007] The mounting frame is provided with multiple sets of positioning mechanisms for fastening the screening structure on one side. The positioning mechanisms fasten the screened structure after it is flipped over, so as to achieve the stability of the screening structure in screening materials.

[0008] Preferably, the screening structure includes a connecting block, a screen is fixedly connected to the upper surface of the connecting block, and anti-overflow beams are fixedly connected to both ends of the upper surface of the screen. A guide hopper is fixedly connected to the lower surface of the connecting block, and a protruding beam is fixedly connected to one end of the guide hopper on the side opposite to the screen.

[0009] Preferably, a connecting shaft is fixedly connected to both sides of the connecting block, and a handwheel and a block are fixedly connected to the opposite end of each of the two sets of connecting shafts. Two sets of insertion holes are opened on both sides of the block.

[0010] Preferably, the mounting frame includes a stepped frame, and two sets of reinforcing baffles are fixedly connected inside the stepped frame, with the two sets of reinforcing baffles being inclined.

[0011] Preferably, the positioning mechanism includes a positioning frame fixedly connected to one side of the stepped frame, a bidirectional lead screw rotatably disposed inside the positioning frame, and a knob fixedly connected to one end of the bidirectional lead screw. Both ends of the bidirectional lead screw located inside the positioning frame are threadedly connected to clamping blocks, and two sets of insert blocks for insertion into the insertion holes are fixedly connected to the opposite side of the two sets of clamping blocks.

[0012] Preferably, it also includes a base plate, on which vibration motors are installed at both ends of the upper surface of the base plate, and support frames are provided on the two sets of vibration motors, with the stepped frame installed on the upper end of the support frames.

[0013] Preferably, the support frame includes a base frame fixedly connected above the two sets of vibration motors, and the upper surface of the base frame is fixedly connected at both ends to pillars fixedly connected to the corners of the stepped frame.

[0014] Preferably, it also includes a buffer feeding mechanism installed on the upper surface of the bottom frame. The buffer feeding mechanism includes a fixed plate fixedly connected to the upper surface of the bottom frame. The upper surface of the fixed plate is provided with two sets of bottom beams and cylinders. The telescopic end of the cylinder is fixedly connected to a connecting beam, and the upper end of the connecting beam is fixedly connected to a feeding hopper. The lower surface of the feeding hopper is fixedly connected with two sets of guide rods inserted into the bottom beams.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model mainly utilizes the cooperation between the mounting frame and multiple sets of screening structures. The mounting frame facilitates the staggered distribution of multiple screening mechanisms, enabling materials to be screened step by step. By flipping the multiple sets of screening mechanisms, the screening mechanism can be switched between screening and material guiding states, thus facilitating the changing of the screening structure state according to screening requirements. This allows for easy switching of the particle size of the screened material without the need to replace screening devices of different particle sizes, thereby improving the practicality of the device and increasing the efficiency of material screening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting frame and buffer feeding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the screening structure of this utility model;

[0020] Figure 4This is a schematic diagram of the positioning mechanism of this utility model.

[0021] In the diagram: 1. Base plate; 2. Vibrating motor; 3. Support frame; 31. Base frame; 32. Column; 4. Buffer feeding mechanism; 41. Fixed plate; 42. Bottom beam; 43. Cylinder; 44. Connecting beam; 45. Guide rod; 46. Feed hopper; 5. Mounting frame; 51. Step frame; 52. Reinforcing baffle; 6. Screening structure; 61. Connecting block; 62. Connecting shaft; 63. Handwheel; 64. Block; 65. Insertion hole; 66. Guide hopper; 67. Screen; 68. Anti-overflow beam; 69. Protruding beam; 7. Positioning mechanism; 71. Positioning frame; 72. Two-way lead screw; 73. Knob; 74. Clamping block; 75. Insertion block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a precisely adjustable particle size screening device, comprising:

[0024] Mounting frame 5, and multiple sets of screening structures 6 mounted on mounting frame 5. The multiple sets of screening structures 6 are arranged in a staggered parallel manner, and the conveyed material is screened in multiple stages through the multiple sets of staggered screening structures 6.

[0025] The mounting frame 5 is provided with multiple sets of positioning mechanisms 7 for fastening the screening structure 6. The positioning mechanisms 7 fasten the screened structure 6 after it is flipped over, so as to achieve the stability of the screening structure 6 in screening materials.

[0026] In this embodiment, the screening structure 6 includes a connecting block 61, a screen 67 is fixedly connected to the upper surface of the connecting block 61, and anti-overflow beams 68 are fixedly connected to both ends of the upper surface of the screen 67. A guide hopper 66 is fixedly connected to the lower surface of the connecting block 61, and a protruding beam 69 is fixedly connected to one end of the guide hopper 66 on the side opposite to the screen 67.

[0027] The material is screened by screen 67, and the anti-overflow beam 68 can effectively prevent the material from overflowing from both ends of screen 67 during the screening process. At the same time, the guide hopper 66 can accurately collect the screened material and guide it to discharge, improving the material collection efficiency. Each set of screens 67 is equipped with a receiving hopper (not shown in the figure) directly below it to collect the screened material. In addition, the protruding beam 69 can prevent the material from flowing to the next stage of screening structure 6, thereby improving the collection effect of material of a certain particle size.

[0028] Furthermore, connecting shafts 62 are fixedly connected to both sides of the connecting block 61. A bracket 5 is mounted on one end of each of the two sets of connecting shafts 62 and a handwheel 63 and a block 64 are fixedly connected thereto. Two sets of insertion holes 65 are provided on both sides of the block 64.

[0029] The connecting shaft 62 provides stable rotational support for the screening structure 6. The handwheel 63 facilitates the rotation of the screening structure 6, allowing it to be rotated when materials of that particle size do not need to be screened, thus only guiding the material. At the same time, the block 64 and the socket 65 provide precise positioning points for the positioning mechanism 7, ensuring that the screening structure 6 can quickly engage with the positioning mechanism 7 after rotating 180 degrees, thereby ensuring structural stability during the screening process.

[0030] Specifically, the mounting frame 5 includes a stepped frame 51, and two sets of reinforcing baffles 52 are fixedly connected inside the stepped frame 51, and the two sets of reinforcing baffles 52 are inclined.

[0031] The stepped frame 51 is designed to precisely fit multiple sets of staggered parallel screening structures 6, providing reasonable installation space for multi-stage screening. At the same time, the inclined reinforcing baffle 52 not only enhances the overall structural strength of the mounting frame 5 and resists the impact of vibrating screening, but also helps guide the screened material into the receiving hopper to avoid material accumulation.

[0032] In a further preferred embodiment, the positioning mechanism 7 includes a positioning frame 71 fixedly connected to one side of the stepped frame 51. A bidirectional lead screw 72 is rotatably disposed inside the positioning frame 71, and a knob 73 is fixedly connected to one end of the bidirectional lead screw 72. Both ends of the bidirectional lead screw 72 located inside the positioning frame 71 are threadedly connected to clamping blocks 74, and two sets of inserting blocks 75 for insertion into the insertion hole 65 are fixedly connected to the opposite side of the two sets of clamping blocks 74.

[0033] The bidirectional lead screw 72, in conjunction with the knob 73, enables the synchronous reverse movement of the clamping block 74, making operation convenient. Through the insertion and engagement of the insert block 75 with the insertion hole 65 on the block 64, the flipped screening structure 6 can be quickly and firmly fixed, preventing the screening structure 6 from shifting during vibration. At the same time, the positioning frame 71 provides protection for the internal components. The positioning frame 71 is equipped with a cover plate (not shown in the figure) to prevent impurities from falling onto the bidirectional lead screw 72 and affecting the transmission.

[0034] It is worth noting that it also includes a base plate 1, with vibration motors 2 installed at both ends of the upper surface of the base plate 1. Support frames 3 are provided on the two sets of vibration motors 2, and the stepped frame 51 is installed on the upper end of the support frame 3.

[0035] The vibrating motor 2 provides continuous and stable vibration power for the screening process, promoting the full dispersion and movement of materials on the screen 67 to improve screening efficiency and particle size separation accuracy. The base plate 1 provides a stable mounting foundation for the entire device, and the support frame 3 ensures a reliable connection between the mounting frame 5 and the vibrating motor 2, guaranteeing efficient transmission of vibration energy to the screening structure 6 and reducing the displacement effects caused by vibration.

[0036] Preferably, the support frame 3 includes a base frame 31 fixedly connected above the two sets of vibration motors 2, and the upper surface of the base frame 31 is fixedly connected to two pillars 32 fixedly connected to the corners of the stepped frame 51 at both ends.

[0037] The bottom frame 31 ensures balanced force distribution on the device, and the support column 32 directly connects the bottom frame 31 and the stepped frame 51, ensuring a firm connection that effectively transmits vibrational power while providing precise support for the mounting frame 5, thus preventing deformation of the mounting frame 5 during the screening process.

[0038] For example, it also includes a buffer feeding mechanism 4 installed on the upper surface of the bottom frame 31. The buffer feeding mechanism 4 includes a fixed plate 41 fixedly connected to the upper surface of the bottom frame 31. The upper surface of the fixed plate 41 is provided with two sets of bottom beams 42 and cylinders 43. The telescopic end of the cylinder 43 is fixedly connected to a connecting beam 44, and the upper end of the connecting beam 44 is fixedly connected to a feeding hopper 46. The lower surface of the feeding hopper 46 is fixedly connected to two sets of guide rods 45 inserted into the bottom beams 42.

[0039] The feed hopper 46 is driven to rise and fall by the cylinder 43, and the feeding height can be adjusted according to the height of the screening structure 6 to avoid the material directly impacting the screen 67 and causing damage. The guide rod 45, together with the bottom beam 42, ensures that the feeding hopper 46 rises and falls smoothly and prevents material spillage. At the same time, the feed hopper 46 buffers the material feeding, reduces the instantaneous impact force of the material on the screen 67, and avoids local material accumulation that affects the screening effect.

[0040] When in use, the buffer feeding mechanism 4 is started, and the cylinder 43 drives the connecting beam 44 to move the feeding hopper 46 up and down along the guide rod 45, so that the discharge end of the feeding hopper 46 is close to the screen 67, and then the material is poured into the feeding hopper 46. The feeding hopper 46 buffers the material to prevent the material from impacting the screen 67, and at the same time, it evenly conveys the material to the first-level screening structure 6 (the uppermost layer).

[0041] At this time, the vibration motor 2 starts and transmits the vibration energy to the mounting frame 5 through the support frame 3, so that multiple sets of staggered parallel screening structures 6 on the mounting frame 5 vibrate synchronously. The material moves in a dispersed manner on the screen 67. The material that meets the particle size requirements falls to the bottom of the guide hopper 66 through the screen 67 and is discharged from both sides under the shielding of the convex beam 69. It is then collected in a centralized manner through the receiving hopper, while the material that does not pass through moves along the screen 67 to the subsequent screening structure 6, thereby realizing multi-level particle size classification.

[0042] If there is no need to screen materials of a certain particle size, adjust the positioning structure on the corresponding screening structure 6. Rotate the knob 73 to drive the two sets of clamping blocks 74 away from the double-acting screw 72, thereby disengaging the insert block 75 from the insertion hole 65 and releasing the positioning of the screening structure 6. Then, drive the connecting shaft 62 through the handwheel 63 to rotate the entire screening structure 6 180°, thereby exchanging the positions of the screen 67 and the guide hopper 66. Rotate the knob 73 to reset the positions of the two sets of clamping blocks 74. Insert the insert block 75 into the insertion hole 65 to secure the clamping block 64, ensuring that materials of that particle size will not be screened out.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise and adjustable particle size screening device, characterized in that, include: Mounting frame (5), and multiple sets of screening structures (6) mounted on mounting frame (5), the multiple sets of screening structures (6) are arranged in a staggered parallel manner, and the conveyed material is screened in multiple stages by the multiple sets of staggered screening structures (6); The mounting frame (5) is provided with multiple sets of positioning mechanisms (7) for fastening the screening structure (6) on one side. The positioning mechanisms (7) fasten the screened structure (6) after it is flipped to achieve the stability of the screening structure (6) screening materials.

2. The precision adjustable particle size screening device according to claim 1, characterized in that: The screening structure (6) includes a connecting block (61), a screen (67) is fixedly connected to the upper surface of the connecting block (61), and anti-overflow beams (68) are fixedly connected to both ends of the upper surface of the screen (67). A guide hopper (66) is fixedly connected to the lower surface of the connecting block (61), and a protruding beam (69) is fixedly connected to one end of the guide hopper (66) on the side opposite to the screen (67).

3. The precision adjustable particle size screening device according to claim 2, characterized in that: Both sides of the connecting block (61) are fixedly connected to connecting shafts (62). Each of the two sets of connecting shafts (62) has a mounting bracket (5) at one end and a handwheel (63) and a block (64) fixedly connected thereto. Both sides of the block (64) have two sets of insertion holes (65).

4. The precision adjustable particle size screening device according to claim 1, characterized in that: The mounting frame (5) includes a stepped frame (51), and two sets of reinforcing baffles (52) are fixedly connected inside the stepped frame (51), and the two sets of reinforcing baffles (52) are inclined.

5. The precision adjustable particle size screening device according to claim 3, characterized in that: The positioning mechanism (7) includes a positioning frame (71) fixedly connected to one side of the stepped frame (51). A bidirectional lead screw (72) is rotatably arranged inside the positioning frame (71), and a knob (73) is fixedly connected to one end of the bidirectional lead screw (72). Both ends of the bidirectional lead screw (72) located inside the positioning frame (71) are threadedly connected to clamping blocks (74), and two sets of inserting blocks (75) for insertion into the insertion holes (65) are fixedly connected to the opposite side of the two sets of clamping blocks (74).

6. The precision adjustable particle size screening device according to claim 4, characterized in that: It also includes a base plate (1), on which vibration motors (2) are installed at both ends of the upper surface of the base plate (1), and support frames (3) are provided on the two sets of vibration motors (2), and the stepped frame (51) is installed on the upper end of the support frame (3).

7. The precision adjustable particle size screening device according to claim 6, characterized in that: The support frame (3) includes a base frame (31) fixedly connected above the two sets of vibration motors (2), and the upper surface of the base frame (31) is fixedly connected to two pillars (32) fixedly connected to the corners of the stepped frame (51).

8. The precision adjustable particle size screening device according to claim 7, characterized in that: It also includes a buffer feeding mechanism (4) installed on the upper surface of the bottom frame (31). The buffer feeding mechanism (4) includes a fixed plate (41) fixedly connected to the upper surface of the bottom frame (31). The upper surface of the fixed plate (41) is provided with two sets of bottom beams (42) and cylinders (43). The telescopic end of the cylinder (43) is fixedly connected to a connecting beam (44), and the upper end of the connecting beam (44) is fixedly connected to a feeding hopper (46). The lower surface of the feeding hopper (46) is fixedly connected to two sets of guide rods (45) inserted into the bottom beams (42).

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