Screening device of flour mill

Abstract

The utility model discloses a screening device of a flour mill, relates to the technical field of flour mills, aims to supplement the screening device of the existing flour mill, and adopts the technical scheme that the screening device comprises a rack, a driving part and a plurality of screen frames, various screens with different mesh numbers are detachably connected in the screen frames, the driving part is arranged on the rack, and the driving part is arranged on the rack. Connecting pieces are arranged between the screen frames and the driving piece, and the driving piece drives the connecting pieces and draws the screen frames. According to the screening device of the flour mill, through the crossed reciprocating motion of the multiple layers of screen meshes and the shaking formed by the screen meshes, the stability of the whole device is kept and the shaking condition of the device is reduced while powder is screened by the screen meshes.

Description

Technical Field

[0001] This utility model relates to the field of grinding mill technology, and more specifically, to a screening device for a grinding mill. Background Technology

[0002] A grinding mill is an industrial equipment used to crush solid materials (such as ores, grains, medicinal materials, chemical raw materials, etc.) into fine particles or powders. It is widely used in food processing, pharmaceuticals, building materials, metallurgy, chemicals and many other fields.

[0003] After the process of grinding solid materials, it is often necessary to screen the powder by size through a filter screen. Existing grinding mills already have a variety of solutions for grinding and screening solid materials. This application proposes a new solution to supplement the existing types of grinding mills. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a screening device for a grinding mill.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sieving device for a grinding mill, comprising a frame, a drive component, and several sieve frames, wherein various screens with different mesh sizes are detachably connected inside the sieve frames, the drive component is disposed on the frame, and connecting components are provided between the several sieve frames and the drive component, the drive component drives the connecting components and pulls on the sieve frames.

[0006] The present invention is further configured such that: the driving component is a motor and a transmission rod, the transmission rod is fixedly mounted on the output end of the motor, a plurality of first gears are fixedly mounted on the transmission rod, the motor is fixedly mounted on the frame, and the transmission rod is rotatably connected to the frame.

[0007] The present invention is further configured such that: the connecting member is a roller and two connecting rods rotatably connected to each other, the two connecting rods are respectively rotatably connected to both sides of the roller, the roller is rotatably connected to the frame, the connecting rods are rotatably connected to the screen frame, and a second gear is provided on the roller to mesh with the first gear.

[0008] The present invention is further configured such that the rotation axes formed by the two connecting rods on the rollers coincide with each other.

[0009] The present invention is further configured such that: a sliding groove is provided on the frame, a pulley that can be embedded in the sliding groove is provided on the screen frame, and a protruding ridge is provided on the inner wall of the sliding groove.

[0010] The present invention is further configured such that the screen frame is positioned at the same level as the roller and is rotatably connected to the connecting rod.

[0011] The present invention is further configured such that the number of the sieves is limited to a multiple of 2.

[0012] In summary, the present invention has the following beneficial effects: during the operation of the device, the drive of the motor and the transmission of multiple intermediate components enable the multi-layer screen to form a cross-shaped reciprocating motion, and the shaking generated by the screen enables the screen to maintain the stability of the entire device while screening the powder, and reduces the shaking of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure between the screen, drive components, and part of the frame.

[0015] Figure 3 This is a schematic diagram of the slide area on the frame.

[0016] In the diagram: 1. Frame; 2. Screen frame; 3. Screen; 4. Motor; 5. Transmission rod; 6. First gear; 7. Roller; 8. Connecting rod; 9. Second gear; 10. Slide groove; 11. Pulley; 12. Protruding ridge. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] A screening device for a grinding mill, such as Figures 1-3As shown, the device includes a frame 1, a drive unit, and several screen frames 2. The drive unit is mounted on the frame 1. Connecting parts are provided between the screen frames 2 and the drive unit. The drive unit drives the connecting parts and pulls on the screen frames 2. Various screens 3 with different mesh sizes are detachably connected inside the screen frames 2. The rotation of the drive unit pulls on the screen frames 2, causing them to reciprocate on the frame 1. This allows the produced powder to be screened according to its fineness during the reciprocating motion. The drive unit consists of a motor 4 and a transmission rod 5. The transmission rod 5 is fixedly mounted on the output end of the motor 4, and several first gears 6 are fixedly mounted on the transmission rod 5. The motor 4 is fixedly mounted on the frame 1, and the transmission rod 5 is rotatably connected to the frame 1. The connecting parts are configured as a roller 7 and two connecting rods 8 that are rotatably connected to each other. The two connecting rods 8 are respectively rotatably connected to both sides of the roller 7. The roller 7 is rotatably connected to the frame 1, and the connecting rods 8 are rotatably connected to the screen frame 2. The roller 7 is provided with a second gear 9 that meshes with the first gear 6. The rotation axes formed by the two connecting rods 8 on the roller 7 are coincident. During the rotation of the motor 4, the transmission rod 5 is driven to rotate, so that the transmission rod 5 can drive the second gear 9 to rotate through the first gear 6, thereby causing the roller 7 to rotate. When the roller 7 rotates, it forms a reciprocating pull on the screen frame 2 through the connecting rods 8, thereby forming the screening of powder on the screen 3 on the screen frame 2 to screen particles of the corresponding mesh size.

[0019] The screen frame 2 is positioned on the same layer as the roller 7 and is rotatably connected to the connecting rod 8. The number of screen frames 2 is limited to a multiple of 2. This limitation on the number of screen frames 2 and rollers 7 ensures that the rollers 7 can maintain a balanced effect during rotation, preventing them from shaking the frame 1.

[0020] The frame 1 is provided with a sliding groove 10, and the screen frame 2 is provided with a pulley 11 that can be embedded in the sliding groove 10. The inner wall of the sliding groove 10 is provided with a protruding rib 12. The sliding groove 10 restricts the movement path of the screen frame 2. The protruding rib 12 is used to make the pulley 11 on the screen frame 2 bounce up when it passes the protruding rib 12, so that the powder on the screen frame 2 can be lifted up and the material is screened.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sifting device for a flour mill, characterized in that: It includes a frame (1), a drive unit and several screen frames (2), and various screens (3) with different mesh sizes are detachably connected inside the screen frames (2). The drive unit is set on the frame (1), and there are connecting parts between the screen frames (2) and the drive unit. The drive unit drives the connecting parts and pulls the screen frames (2).

2. A mill screening device according to claim 1, characterised in that: The driving components are a motor (4) and a transmission rod (5). The transmission rod (5) is fixedly installed at the output end of the motor (4). Several first gears (6) are fixedly installed on the transmission rod (5). The motor (4) is fixedly installed on the frame (1). The transmission rod (5) is rotatably connected to the frame (1).

3. A mill screening device according to claim 2, characterised in that: The connecting component is configured as a roller (7) and two connecting rods (8) that are rotatably connected to each other. The two connecting rods (8) are respectively rotatably connected to both sides of the roller (7). The roller (7) is rotatably connected to the frame (1), and the connecting rods (8) are rotatably connected to the screen frame (2). A second gear (9) that meshes with the first gear (6) is provided on the roller (7).

4. A mill screening apparatus according to claim 3, wherein: The rotation axes formed by the two connecting rods (8) on the roller (7) coincide with each other.

5. The screening device for a grinding mill according to claim 1, characterized in that: The frame (1) is provided with a sliding groove (10), and the screen frame (2) is provided with a pulley (11) that can be embedded in the sliding groove (10). The inner wall of the sliding groove (10) is provided with a protruding ridge (12).

6. A classifying device for a flour mill as claimed in claim 3 wherein: The screen frame (2) is positioned on the same level as the roller (7) and is rotatably connected to the connecting rod (8).

7. A classifying device for a flour mill as defined in claim 1, wherein: The number of the screens (2) is limited to a multiple of 2.

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