Straw dust recovery device for straw processing

Abstract

The utility model discloses a straw dust recovery device for straw processing, which comprises a recovery box, a screen box is arranged in the recovery box through a plurality of groups of swing frames, a follow-up block with an arc-shaped end part is arranged at the side part of the screen box, a support frame is hinged above the screen box in the recovery box, a plurality of groups of deflector rods are arranged on a long arm of the support frame in a sliding and penetrating manner, and the deflector rods are connected with the screen box. The straw screening device has the advantages that straw in the screening box can be shaken in multiple directions by arranging the screening box capable of swinging left and right and being matched with the pulling rod capable of swinging up and down, so that dust adsorbed on the straw can be subjected to multidirectional acting force, and no matter dust at hidden positions such as leaf sheaths and stems, dust can be removed from the screening box, and dust can be removed from the screening box. According to the straw dust removal device, dust on the straw and dust on other portions of the straw can be separated from the straw more easily under impact of multi-directional acting force, the amount of dust remaining on the surface of the straw is reduced, and the risk of dust raising in the follow-up machining process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of straw processing technology, and in particular to a straw dust recovery device for straw processing. Background Technology

[0002] Straw, a common agricultural waste, is produced in large quantities. With increasing environmental awareness and emphasis on resource recycling, the straw processing industry is booming. However, the straw processing process generates a large amount of dust, which not only seriously pollutes the working environment and endangers the health of operators, but also poses safety hazards such as dust explosions, while wasting resources. Therefore, straw dust recovery devices are needed.

[0003] Authorization announcement number CN 210143957 U discloses a straw dust recovery device for straw processing, including a main body of the device, a screening body inside the main body, a straw inlet penetrating through the right end of the top wall of the main body, and a straw outlet penetrating through the bottom of the left wall. The device primarily relies on a left-right oscillating motion to remove dust. However, in practical applications, a large amount of dust adheres to the leaf sheaths and stems of some straw. Because this location is relatively hidden, the device's simple left-right oscillation is insufficient to remove this dust from the straw. This significantly reduces recovery efficiency, leaving a large amount of dust residue on the straw, which can easily cause dust generation during subsequent processing, posing a serious threat to the working environment and production safety. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems of the above-mentioned straw dust recovery device for straw processing, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a straw dust recycling device for straw processing, including a recycling box, in which a sieve box is installed by multiple sets of swing frames, and a follower block with an arc-shaped end is provided on the side;

[0007] Inside the recycling bin, a support frame is hinged above the sieve box. Multiple sets of levers slide through the long arm of the support frame. The axial direction of the levers is towards the bottom wall of the sieve box, and the bottom end of each set of levers is a bidirectional hook. The bidirectional hook and the lever body form a retention area that can accommodate straw. A round rod is fixed on the short arm of the support frame.

[0008] The recycling bin is equipped with a cam and an end face cam driven by a motor. The outer curved surface of the cam contacts the follower block and works with the swing frame to control the left and right swing of the sieve box. The end curved surface of the end face cam contacts the round rod to control the up and down swing of the lever.

[0009] In a preferred embodiment of the straw dust recovery device for straw processing described in this utility model, the sieve box is inclined, and the multiple sets of levers are all located in the middle region of the sieve box axis.

[0010] In a preferred embodiment of the straw dust recovery device for straw processing described in this utility model, a spring is elastically connected between the lever and the top of the support frame.

[0011] As a preferred embodiment of the straw dust recovery device for straw processing described in this utility model, the bottom of the recovery box has a double-sloped structure, and a dust recovery port is provided in the center of the box. The top of the recovery box has two doors.

[0012] As a preferred embodiment of the straw dust recycling device for straw processing described in this utility model, the recycling box contains two symmetrically distributed load-bearing rods. When the bottom of the support frame contacts the load-bearing rods, the round rod is located at the highest position of the curved surface at the end of the end cam.

[0013] As a preferred embodiment of the straw dust recycling device for straw processing described in this utility model, each set of swing frames consists of two uprights, two sliding rods, a moving block, and multiple springs. The uprights are fixed to the inner wall of the recycling box, the two sliding rods are fixed between the two uprights, the moving block is slidably sleeved on the two sliding rods, and the multiple springs are respectively installed on both sides of the moving block and between the corresponding uprights.

[0014] The beneficial effects of this utility model are as follows: By setting a sieve box that can swing left and right and a lever that swings up and down, the straw in the sieve box can be shaken in multiple directions, so that the dust adsorbed on the straw can be subjected to multi-directional forces. Whether it is dust in hidden parts such as between the leaf sheath and the stem, or dust in other parts of the straw, it can be more easily removed from the straw under the impact of multi-directional forces, reducing the amount of dust remaining on the surface of the straw and reducing the risk of dust generation during subsequent processing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the support frame in this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the sieve box in this utility model.

[0020] Figure 5 This is a schematic diagram of the swing frame in this utility model.

[0021] Attached diagram descriptions: 1. Recycling bin; 11. Dust collection port; 12. Box door; 2. Sieve box; 21. Follower block; 3. Swing frame; 31. Stand; 32. Slide rod; 33. Moving block; 34. Spring 2; 4. Support frame; 41. Lever; 42. Spring 1; 43. Round rod; 5. Motor; 51. Cam; 52. End face cam; 6. Load-bearing rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Reference Figures 1-4 This invention provides a straw dust recovery device for straw processing, comprising a recovery box 1 with a double-sloped bottom for easy collection and discharge of dust and debris. A dust recovery port 11 is located in the center of the recovery box 1, which is connected to a negative pressure device for drawing air into the recovery box 1 to achieve dust recovery. The top of the recovery box 1 has two doors 12 for placing straw into a sieve box 2. The straw is placed horizontally on the sieve box 2 during placement to facilitate subsequent contact with the bidirectional hooks on the pull rod 41.

[0027] like Figure 2 and Figure 5 As shown, a sieve box 2 is installed inside the recycling bin 1 via multiple sets of swing frames 3. The bottom of the sieve box 2 has closely arranged sieve holes. Each set of swing frames 3 consists of two uprights 31, two sliding rods 32, a moving block 33, and multiple springs 34. The uprights 31 are fixed to the inner wall of the recycling bin 1, and the two sliding rods 32 are fixed between the two uprights 31. The moving block 33 is slidably sleeved on the two sliding rods 32. Multiple springs 34 are respectively installed on both sides of the moving block 33 and between the corresponding uprights 31, providing axial elastic force to the sieve box 2, so that it can swing left and right inside the recycling bin 1, which is convenient for sieving dust from the straw.

[0028] Inside the recycling bin 1, a support frame 4 is hinged above the sieve box 2. Multiple sets of levers 41 slide along the long arm of the support frame 4. A spring 42 is elastically connected between the levers 41 and the top of the support frame 4. The spring 42 prevents the levers 41 from making hard contact with the sieve box 2 during the up-and-down swinging process, reducing wear and tear. The axial direction of the levers 41 faces the bottom wall of the sieve box 2, and the bottom end of each set of levers 41 is a bidirectional hook. The upper surface of the bidirectional hook is perpendicular to the lever body of the lever 41, and the bottom surface is a slope, which facilitates squeezing the straw to both sides. The bidirectional hook and the lever body of the lever form a retention area that can accommodate the straw. The sieve box 2 is tilted, and the multiple sets of levers 41 are all located in the middle area of ​​the axial direction of the sieve box 2. The bidirectional hooks on the levers 41 can grab the straw during the up-and-down swinging process, so that the straw is subjected to a vertical force, increasing the force direction of the dust, thereby improving the dust removal effect on the straw.

[0029] The side of the sieve box 2 is provided with a follower block 21 with an arc-shaped end. A round rod 43 is fixed on the short arm of the support frame 4. The recycling box 1 is equipped with a cam 51 and an end face cam 52 driven by a motor 5. The cam 51 and the end face cam 52 are mounted on the drive shaft of the motor 5 through a rotating shaft. The outer curved surface of the cam 51 contacts the follower block 21 and cooperates with the swing frame 3 to control the left and right swing of the sieve box 2. The end curved surface of the end face cam 52 contacts the round rod 43 to control the up and down swing of the lever 41. During the swing, the horizontal straw will jump to both sides after being subjected to the left and right swing force. When the lever 41 descends, the jumping straw can move to the bidirectional hook on the lever 41 and be thrown back into the sieve box 2 after moving upward. This achieves a multi-directional swing effect on the straw, so that the surface dust is subjected to multi-directional force, which facilitates the separation of the dust from the straw and improves the overall recycling effect.

[0030] Inside the recycling bin 1, there are two symmetrically distributed load-bearing rods 6. When the bottom of the support frame 4 contacts the load-bearing rod 6, the round rod 43 is located at the highest position of the end curved surface of the end face cam 52, which is used to limit the support frame 4 and prevent it from over-end face cam 52, thereby improving the service life of end face cam 52.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A straw dust recovery device for straw processing, characterized by, The application relates to a recycling box (1) which is internally provided with sieve boxes (2) through a plurality of sets of swing frames (3), and the side of the recycling box (1) is provided with follow-up blocks (21) with arc-shaped structures at the ends. A support frame (4) is hingedly arranged above the sieve boxes (2) in the recycling box (1), a plurality of sets of push rods (41) are slidably arranged on the long arms of the support frame (4), the push rods (41) are axially directed towards the bottom walls of the sieve boxes (2), the bottom ends of each set of push rods (41) are provided with bidirectional hooks, the bidirectional hooks and the rod bodies of the push rods (41) form retention areas for accommodating straws, and a round rod (43) is fixed on the short arms of the support frame (4). A cam (51) and an end face cam (52) driven by a motor (5) are arranged on the recycling box (1), the outer curved surface of the cam (51) is in contact with the follow-up blocks (21) and cooperates with the swing frames (3) to control the left-right swinging of the sieve boxes (2), and the end curved surface of the end face cam (52) is in contact with the round rod (43) to control the up-down swinging of the push rods (41).

2. The straw dust recovery device for straw processing according to claim 1, characterized in that: The sieve boxes (2) are arranged in an inclined mode, and the plurality of sets of push rods (41) are arranged in the middle regions of the sieve boxes (2) in the axial direction.

3. The straw dust recovery device for straw processing according to claim 2, characterized in that: Springs (42) are elastically connected between the push rods (41) and the top portions of the support frame (4).

4. The straw dust recovery device for straw processing according to claim 1, characterized in that: The bottom of the recycling box (1) is provided with a double-inclined surface structure, a dust recycling opening (11) is arranged at the central position of the recycling box (1), and the top of the recycling box (1) is provided with two box doors (12).

5. The straw dust recovery device for straw processing according to claim 1, characterized in that: Two symmetrically-distributed bearing rods (6) are fixed in the recycling box (1), when the bottom of the support frame (4) is in contact with the bearing rods (6), the round rod (43) is located at the highest position of the end curved surface of the end face cam (52).

6. The straw dust recovery device for straw processing according to claim 1, characterized in that: Each set of swing frames (3) is composed of two stands (31), two slide rods (32), a moving block (33) and a plurality of springs (34), the stands (31) are fixed on the inner walls of the recycling box (1), the slide rods (32) are fixed between the stands (31), the moving block (33) is slidably arranged on the slide rods (32), and the springs (34) are arranged between the moving block (33) and the corresponding stands (31) on the two sides of the moving block (33).

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