Flying dust cleaning device for flour processing

Abstract

The invention relates to the technical field of flour processing, and discloses a raised dust cleaning device for flour processing, which comprises a contact type flour collecting mechanism and two elastic telescopic pressure applying mechanisms. According to the raised dust cleaning device for flour processing, flour is separated from the conveying belt in an autonomous mode to be collected through the gravity of the flour, other power sources are not needed, and therefore the raised dust cleaning device has the advantages of being low in production cost and use cost, and in addition, the arc-shaped abutting plate abuts against the surface of the belt body of the conveying belt with certain pressure through the elasticity of the spiral spring; deep cleaning of the surface of the conveying belt can be achieved, and then the cleaning capacity of the conveying belt is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flour processing, in particular to a dust cleaning device for flour processing. Background Art

[0002] Flour needs to be packaged before it is processed and shipped out of the factory. According to the size of the packaging, it can be divided into small packaging, ton bag packaging and tank truck bulk packaging. Each packaging requires special equipment. For example, for small packaging, the packaging technology on the market is very mature. In the actual work process, although the packaging technology is mature, there are certain defects in its packaging. Since the flour bags rely on conveyor belts for transportation, some flour and impurities and dust will fall on the surface of the conveyor belt. These flours have a large recycling value. If they are not cleaned for a long time, they are easy to breed bacteria and affect the sanitary quality.

[0003] To this end, a Chinese patent with publication number "CN114955460B" has announced "a flour dust adsorption and cleaning device for flour processing", whose main structure includes a base, a conveyor belt is arranged on the surface of the base, a support seat 2 is arranged on the surface of the base, a movable groove is opened on the surface of the support seat 2, and an adsorption plate is arranged in the movable groove, and the adsorption plate is located on the surface of the conveyor belt; a movable groove is opened on the surface of the adsorption plate, and a baffle is arranged on the surface of the movable groove; an adsorption port is opened on the surface of the adsorption plate, a filter plate is arranged in the adsorption port, a connecting block is arranged on the surface of the filter plate, and one end of the baffle is located on the surface of the connecting block; the flour dust adsorption and cleaning device for flour processing: connected with the adsorption plate through a connecting pipe, dust can be adsorbed and collected to realize secondary utilization of dust, and dust impurities remaining at the adsorption port are cleaned through the filter plate, and dust will no longer fly in the air during cleaning, and dust impurities are handled by a sticky plate.

[0004] However, the flour dust adsorption and cleaning device for flour processing has the following defects when actually used: a suction machine is required to work so that external gas is sucked into the storage area, and thus electricity is required as a power source, which will increase its production cost and use cost; at the same time, due to the action of the suction machine, the flour in the storage area is still affected by the gas, which can easily cause the flour to disperse to the surroundings and pollute the surrounding air. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dust cleaning device for flour processing, which utilizes the gravity of the flour itself to detach from the conveyor belt and be collected in an autonomous manner without the need for other power sources. Therefore, it has the characteristics of low production cost and use cost. In addition, the device utilizes the elasticity of the coil spring so that the arc-shaped resistance plate resists the surface of the conveyor belt with a certain pressure, which can achieve deep cleaning of the conveyor belt surface, thereby improving the cleaning ability of the conveyor belt, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dust cleaning device for flour processing, comprising a driving drum on a flour bag conveyor line, an endless conveyor belt sleeved on the surface of the driving drum and capable of rotating with the driving drum, and a bottom supporting base plate located below a rotating end of the endless conveyor belt, and also comprising a contact-type flour collecting mechanism, the interior of which is provided with a bottom flour storage tank placed on the upper surface of the bottom supporting base plate and capable of storing flour, a top flour guiding shell located at the bottom of a rotating end of the endless conveyor belt and capable of guiding and collecting flour, and an arc-shaped contact plate arranged at the top of one side of the top flour guiding shell and in contact with the surface of the endless conveyor belt; and two elastic telescopic pressure-applying mechanisms, the interior of which is provided with a cylindrical hollow body with a hollow interior, an inner movable plate located inside the cylindrical hollow body and capable of moving axially along the cylindrical hollow body, a spiral spring located inside the cylindrical hollow body and generating an upward elastic force on the inner movable plate, and a fixed sleeve that can move with the inner movable plate and has a high supporting effect on the top flour guiding shell.

[0007] Preferably, the resistance type flour collecting mechanism comprises a bottom flour storage tank and a top flour guiding shell, the top of the bottom flour storage tank is provided with a bottom docking shell with an integral structure therewith, the bottom flour storage tank is provided with a bottom flour storage cavity for storing flour inside, the bottom docking shell is provided with a bottom docking cavity with a bottom end connected to the bottom flour storage cavity and a top end being in an open state, the top flour guiding shell is provided with a flour dropping cavity with a top end being in an open state, the two outer sides of the top flour guiding shell are respectively provided with a fixed shaft structure, the bottom of the top flour guiding shell is provided with a top docking shell capable of being inserted into the bottom docking cavity, the top docking shell is provided with a flour dropping opening with a top end connected to the bottom end of the flour dropping cavity and a bottom end being in an open state, one side of the top flour guiding shell is in resistance to below a rotating end of the ring conveyor belt, and the top flour guiding shell is provided with an arc-shaped resistance plate with an integral structure therewith and in resistance to the surface of the ring conveyor belt.

[0008] Preferably, the center of gravity of the top flour guiding shell is located directly below the axis of the fixed shaft structure.

[0009] Preferably, the structural radius of the inner concave surface of the arc-shaped contact plate is the same as the structural radius of the endless conveyor belt at the driving drum.

[0010] Preferably, the elastic telescopic pressure-applying mechanism comprises a cylindrical hollow body, a bottom fixing plate which is an integral structure with the cylindrical hollow body is provided at the bottom, a longitudinal component movable cavity is provided inside the cylindrical hollow body, a rod through hole which connects the external space and the top end of the longitudinal component movable cavity is provided at the top end of the cylindrical hollow body, an inner movable plate which can move axially along the longitudinal component movable cavity is arranged in the cylindrical hollow body inside the longitudinal component movable cavity, a coil spring in a compressed state is arranged at the bottom of the inner movable plate, a longitudinal telescopic rod which passes through the inner movable plate is fixedly installed on the upper surface of the inner movable plate, and a fixing sleeve which is an integral structure with the longitudinal telescopic rod and fixedly installed on the shaft body of the fixed shaft structure is provided at the top end of the longitudinal telescopic rod.

[0011] Preferably, the structural shape of the rod body perforated cross section is consistent with the structural shape of the longitudinal telescopic rod cross section, both are polygonal structures, and the structural dimensions of the rod body perforated cross section match the structural dimensions of the longitudinal telescopic rod cross section.

[0012] Preferably, it also includes a threaded support height adjustment mechanism, which is internally provided with a No. 1 externally threaded rod and a No. 2 externally threaded rod connected to the bottom support base plate and the bottom fixed plate, a horizontal threaded sleeve threadedly connected to the No. 1 externally threaded rod and the No. 2 externally threaded rod and capable of changing the distance between the No. 1 externally threaded rod and the No. 2 externally threaded rod when rotating, and a polygonal limiting rod inserted at the axis of the No. 1 externally threaded rod and the No. 2 externally threaded rod and capable of preventing the No. 1 externally threaded rod and the No. 2 externally threaded rod from rotating relative to each other.

[0013] Preferably, the threaded support height adjustment mechanism includes a horizontal threaded sleeve with a polygonal rotating structure for easy screwing on the outer circumference, a No. 1 externally threaded rod and a No. 2 externally threaded rod, one end of the horizontal threaded sleeve is provided with a No. 1 internally threaded cavity with a concave structure, and the other end of the horizontal threaded sleeve is provided with a No. 2 internally threaded cavity with a concave structure, the rod body of the No. 1 externally threaded rod is installed inside the No. 1 internally threaded cavity through the No. 1 threaded structure, and the rod body of the No. 2 externally threaded rod is installed inside the No. 2 internally threaded cavity through the No. 2 threaded structure, the No. 1 externally threaded rod and the No. 2 externally threaded rod are provided with polygonal limiting cavities with concave structures at opposite ends, and a polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed in the center of the horizontal threaded sleeve, one end of the No. 1 externally threaded rod is provided with a No. 1 connecting plate which is an integral structure with it and fixedly connected to the upper surface of the bottom support base plate, and one end of the No. 2 externally threaded rod is provided with a No. 2 connecting plate which is an integral structure with it and fixedly connected to the lower surface of the bottom fixing plate.

[0014] Preferably, the structural shape of the polygonal limit cavity cross section is consistent with the structural shape of the polygonal limit rod cross section, both are polygonal structures, and the structural dimensions of the polygonal limit cavity cross section match the structural dimensions of the polygonal limit rod cross section.

[0015] Preferably, the No. 1 thread structure includes an internal thread structure arranged inside the No. 1 internal thread cavity and an external thread structure arranged on the No. 1 external thread rod body, and the No. 2 thread structure includes an internal thread structure arranged inside the No. 2 internal thread cavity and an external thread structure arranged on the No. 2 external thread rod body, and the spiral direction of the No. 1 thread structure is opposite to the spiral direction of the No. 2 thread structure.

[0016] Compared with the prior art, the present invention provides a dust cleaning device for flour processing, which has the following beneficial effects:

[0017] The flour utilizes its own gravity to be collected independently from the conveyor belt without the need for other power sources, so it has the characteristics of low production and use costs. In addition, the device utilizes the elasticity of the coil spring to make the arc-shaped resistance plate resist the surface of the conveyor belt with a certain pressure, which can achieve deep cleaning of the conveyor belt surface and thus improve the cleaning ability of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the present invention at a first viewing angle;

[0020] Figure 3 is a three-dimensional cross-sectional view of the present invention at a second viewing angle;

[0021] Figure 4 It is a three-dimensional cross-sectional view of the interference type flour collecting mechanism of the present invention;

[0022] Figure 5 is a three-dimensional cross-sectional view of the elastic telescopic pressure-applying mechanism of the present invention;

[0023] Figure 6 It is a three-dimensional cross-sectional view of the threaded support height adjustment mechanism of the present invention.

[0024] Among them: 1. Annular conveyor belt; 2. Driving drum; 3. Bottom supporting base plate; 4. Flour collecting mechanism with resistance; 41. Bottom flour storage tank; 42. Bottom docking shell; 43. Bottom flour storage chamber; 44. Bottom docking chamber; 45. Top flour guiding shell; 46. Top docking shell; 47. Flour drop opening; 48. Flour drop chamber; 49. Arc-shaped resistance plate; 410. Fixed shaft structure; 5. Elastic telescopic pressure mechanism; 51. Columnar hollow body; 52. Bottom fixed plate; 53. Longitudinal component movement cavity; 54, rod body perforation; 55, inner movable plate; 56, spiral spring; 57, longitudinal telescopic rod; 58, fixed sleeve; 6, threaded support height adjustment mechanism; 61, horizontal threaded sleeve; 62, No. 1 internal thread cavity; 63, No. 2 internal thread cavity; 64, No. 1 thread structure; 65, No. 2 thread structure; 66, No. 1 external thread rod; 67, No. 2 external thread rod; 68, No. 1 connecting plate; 69, No. 2 connecting plate; 610, polygonal limit cavity; 611, polygonal limit rod; 612, polygonal rotation structure. DETAILED DESCRIPTION

[0025] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 , Figure 2 and Figure 3 A dust cleaning device for flour processing includes a driving drum 2 on a flour bag conveyor line, an endless conveyor belt 1 which is sleeved on the surface of the driving drum 2 and can rotate with the driving drum 2, and a bottom supporting base plate 3 located below a rotating end of the endless conveyor belt 1. It should be noted that when the equipment is in operation, the rotation direction of the endless conveyor belt 1 needs to make the flour on the upper surface of the endless conveyor belt 1 fall into the direction of the flour falling cavity 48 to work. In other words, the flour bags on the upper surface of the endless conveyor belt 1 need to move from the end away from the top flour guide shell 45 to the end close to the top flour guide shell 45. In the process of conveying flour bags, some flour powder will remain on the upper surface of the endless conveyor belt 1, and the powder will enter the top of the flour falling cavity 48 from far to near as the end of the endless conveyor belt 1 rotates.

[0027] To implement the drop collection function for flour powder, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up a resistance-type flour collecting mechanism 4, which is internally provided with a bottom flour storage tank 41 placed on the upper surface of the bottom supporting base plate 3 and capable of storing flour, a top flour guiding shell 45 located at the bottom of a rotating end of the ring conveyor belt 1 and capable of guiding and collecting flour, and an arc-shaped resistance plate 49 arranged on the top of one side of the top flour guiding shell 45 and resisting against the surface of the ring conveyor belt 1. When the flour powder moves to the rotating direction of the ring conveyor belt 1, it will fall into the inside of the flour falling cavity 48 under its own gravity, and finally enter the bottom flour storage cavity 43 for storage under the action of gravity. At the same time, since the bottom flour storage tank 41 and the top flour guiding shell 45 are separated, the elastic telescopic pressure-applying mechanism 5 only needs to bear the weight of the top flour guiding shell 45, thereby reducing the elastic burden of the top flour guiding shell 45.

[0028] For the specific structure of the friction type flour collecting mechanism 4, please refer to Figure 4 , including a bottom flour storage tank 41 and a top flour guide shell 45, wherein the top of the bottom flour storage tank 41 is provided with a bottom docking shell 42 of an integral structure therewith, the bottom flour storage tank 41 is provided with a bottom flour storage cavity 43 for storing flour, the bottom docking shell 42 is provided with a bottom docking cavity 44 whose bottom end is connected to the bottom flour storage cavity 43 and whose top end is open, the top flour guide shell 45 is provided with a flour falling cavity 48 whose top end is open, the two outer sides of the top flour guide shell 45 are respectively provided with a fixed shaft structure 410, and the bottom of the top flour guide shell 45 is provided with There is a top docking shell 46 that can be inserted into the bottom docking cavity 44, and the interior of the top docking shell 46 is provided with a flour dropping port 47 whose top end is connected to the bottom end of the flour dropping cavity 48 and whose bottom end is in an open state. One side of the top flour guiding shell 45 abuts against the bottom of a rotating end of the ring conveyor belt 1, and the top flour guiding shell 45 is provided with an arc-shaped abutting plate 49 which is an integral structure with it and abuts against the surface of the ring conveyor belt 1. The center of gravity of the top flour guiding shell 45 is located directly below the axis line of the fixed shaft structure 410, and the structural radius of the inner concave surface of the arc-shaped abutting plate 49 is the same as the structural radius of the ring conveyor belt 1 at the driving drum 2.

[0029] In order to make the arc-shaped contact plate contact the surface of the conveyor belt with a certain pressure, it can achieve deep cleaning of the conveyor belt surface. Figure 1 , Figure 2 , Figure 3 and Figure 5, it is necessary to set up two elastic telescopic pressure-applying mechanisms 5, which are provided with a cylindrical hollow body 51 with a hollow interior, an inner movable plate 55 located inside the cylindrical hollow body 51 and capable of axially moving along the cylindrical hollow body 51, a coil spring 56 located inside the cylindrical hollow body 51 and generating an upward elastic force on the inner movable plate 55, and a fixed sleeve 58 capable of moving with the inner movable plate 55 and having a high supporting effect on the top flour guiding shell 45. Due to the elastic supporting effect of the coil spring 56, the arc-shaped resistance plate 49 will resist the surface of the turning point of the endless conveyor belt 1 with a certain elastic pressure, thereby increasing the cleaning force of the arc-shaped resistance plate 49 on the powder attached to the surface of the endless conveyor belt 1, thereby further improving the cleaning ability of the conveyor belt.

[0030] For the specific structure of the elastic telescopic pressure applying mechanism 5, please refer to Figure 5 , comprising a cylindrical hollow body 51, a bottom fixing plate 52 of an integral structure is arranged at the bottom of the cylindrical hollow body 51, a longitudinal component movable cavity 53 is arranged inside the cylindrical hollow body 51, a rod body through hole 54 is arranged at the top end of the cylindrical hollow body 51 for connecting the external space and the top end of the longitudinal component movable cavity 53, an inner movable plate 55 capable of axial movement along the longitudinal component movable cavity 53 is arranged inside the cylindrical hollow body 51 located in the longitudinal component movable cavity 53, and a The coil spring 56 is in a compressed state, and a longitudinal telescopic rod 57 penetrating the inner movable plate 55 is fixedly installed on the upper surface of the inner movable plate 55. The top of the longitudinal telescopic rod 57 is provided with a fixing sleeve 58 which is an integral structure with it and fixedly installed on the shaft body of the fixed shaft structure 410. The structural shape of the cross section of the rod body through-hole 54 is consistent with the structural shape of the cross section of the longitudinal telescopic rod 57, both of which are polygonal structures, and the structural dimensions of the cross section of the rod body through-hole 54 match the structural dimensions of the cross section of the longitudinal telescopic rod 57.

[0031] In order to adjust the support height and thus the elastic strength of the coil spring 56, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6, it is necessary to set up a threaded support height adjustment mechanism 6, which is internally provided with a No. 1 external threaded rod 66 and a No. 2 external threaded rod 67 connected to the bottom support base plate 3 and the bottom fixing plate 52, a horizontal threaded sleeve 61 threadedly connected to the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 and capable of changing the distance between the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 when rotating, and a polygonal limiting rod 611 inserted into the axis of the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 and capable of preventing the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 from rotating relative to each other, and synchronously rotating the two polygonal rotating structures 612. At this time, the horizontal threaded sleeve 61 will rotate in a directional manner. Since the structural shape of the cross section of the polygonal limiting cavity 610 is consistent with the structural shape of the cross section of the polygonal limiting rod 611, both are polygonal structures, and the polygonal limiting cavity 6 10 The structural dimensions of the cross section match the structural dimensions of the cross section of the polygonal limiting rod 611, and the No. 1 threaded structure 64 includes an internal threaded structure arranged inside the No. 1 internal threaded cavity 62 and an external threaded structure arranged on the rod body of the No. 1 external threaded rod 66, and the No. 2 threaded structure 65 includes an internal threaded structure arranged inside the No. 2 internal threaded cavity 63 and an external threaded structure arranged on the rod body of the No. 2 external threaded rod 67, and the spiral direction of the No. 1 threaded structure 64 is opposite to the spiral direction of the No. 2 threaded structure 65. At this time, the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 will approach or move away from each other, thereby adjusting the support height, and the support height will act on the coil spring 56 through the cylindrical hollow body 51, so that the coil spring 56 is compressed or stretched, thereby realizing the adjustment function of the elastic strength of the coil spring 56.

[0032] For the specific structure of the threaded support height adjustment mechanism 6, please refer to Figure 6, including a horizontal threaded sleeve 61 with a polygonal rotating structure 612 for easy screwing on the outer circumference, a No. 1 external threaded rod 66 and a No. 2 external threaded rod 67, one end of the horizontal threaded sleeve 61 is provided with a No. 1 internal threaded cavity 62 with an inner concave structure, and the other end of the horizontal threaded sleeve 61 is provided with a No. 2 internal threaded cavity 63 with an inner concave structure, the rod body of the No. 1 external threaded rod 66 is installed in the No. 1 internal threaded cavity 62 through the No. 1 threaded structure 64, and the rod body of the No. 2 external threaded rod 67 is installed in the No. 2 internal threaded cavity through the No. 2 threaded structure 65 63, the No. 1 external threaded rod 66 and the No. 2 external threaded rod 67 are provided with a polygonal limit cavity 610 with an inner concave structure at the opposite ends, and a polygonal limit rod 611 inserted into the polygonal limit cavity 610 is fixedly installed at the center of the horizontal threaded sleeve 61, one end of the No. 1 external threaded rod 66 is provided with a No. 1 connecting plate 68 which is an integral structure with it and fixedly connected to the upper surface of the bottom supporting base plate 1, and one end of the No. 2 external threaded rod 67 is provided with a No. 2 connecting plate 69 which is an integral structure with it and fixedly connected to the lower surface of the bottom fixing plate 52.

[0033] When in use, when the equipment is running, the rotation direction of the ring conveyor belt 1 needs to make the flour on the upper surface of the ring conveyor belt 1 fall into the flour dropping chamber 48. In the process of conveying flour bags, some flour powder will remain on the upper surface of the ring conveyor belt 1, and the powder will enter the flour dropping chamber 48 from far to near as the end of the ring conveyor belt 1 rotates. When the flour powder moves to the rotation direction of the ring conveyor belt 1, it will fall into the flour dropping chamber 48 under its own gravity, and finally enter the bottom flour storage chamber 43 for storage under the action of gravity. At the same time, the arc-shaped resistance plate 49 can scrape off the attached flour.

[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 dust cleaning device for flour processing, comprising a driving drum (2) on a flour bag conveyor line, an endless conveyor belt (1) sleeved on the surface of the driving drum (2) and capable of rotating with the driving drum (2), and a bottom support base plate (3) located below a rotating end of the endless conveyor belt (1), characterized in that: Also includes, A contact-type flour collecting mechanism (4) is provided with a bottom flour storage tank (41) placed on the upper surface of a bottom supporting base plate (3) and capable of storing flour, a top flour guide shell (45) located at the bottom of a rotating end of the ring-shaped conveyor belt (1) and capable of guiding and collecting flour, and an arc-shaped contact plate (49) provided at the top of one side of the top flour guide shell (45) and contacting the surface of the ring-shaped conveyor belt (1); and two elastic telescopic pressure-applying mechanisms (5), wherein a hollow cylindrical body (51) is provided inside the hollow cylindrical body (51), an inner movable plate (55) located inside the hollow cylindrical body (51) and capable of moving axially along the hollow cylindrical body (51), a spiral spring (56) located inside the hollow cylindrical body (51) and generating an upward elastic force on the inner movable plate (55), and a fixed sleeve (58) capable of moving with the inner movable plate (55) and providing a high degree of support for the top flour guide shell (45).

2. A dust cleaning device for flour processing according to claim 1, characterized in that: The contact-type flour collecting mechanism (4) comprises a bottom flour storage tank (41) and a top flour guiding shell (45); the top of the bottom flour storage tank (41) is provided with a bottom docking shell (42) which is an integral structure with the bottom flour storage tank (41); the bottom flour storage tank (41) is provided with a bottom flour storage cavity (43) for storing flour; the bottom docking shell (42) is provided with a bottom docking cavity (44) which is connected to the bottom flour storage cavity (43) at the bottom end and is in an open state at the top end; the top flour guiding shell (45) is provided with a flour dropping cavity (48) which is in an open state at the top end; A fixed shaft structure (410) is respectively arranged on the two outer sides of the shell (45); a top docking shell (46) capable of being inserted into the bottom docking cavity (44) is arranged at the bottom of the top flour guide shell (45); a flour drop opening (47) is arranged inside the top docking shell (46), the top end of which is connected to the bottom end of the flour drop cavity (48) and the bottom end of which is open; one side of the top flour guide shell (45) contacts below a rotating end of the ring-shaped conveyor belt (1); and an arc-shaped contact plate (49) is arranged in the top flour guide shell (45), which is integrally structured with the top flour guide shell (45) and contacts the surface of the ring-shaped conveyor belt (1).

3. A dust cleaning device for flour processing according to claim 2, characterized in that: The center of gravity of the top flour guiding shell (45) is located directly below the axis of the fixed shaft structure (410).

4. A dust cleaning device for flour processing according to claim 3, characterized in that: The structural radius of the inner concave surface of the arc-shaped abutment plate (49) is the same as the structural radius of the endless conveyor belt (1) at the driving drum (2).

5. A dust cleaning device for flour processing according to claim 4, characterized in that: The elastic telescopic pressure-applying mechanism (5) comprises a cylindrical hollow body (51), the bottom of the cylindrical hollow body (51) is provided with a bottom fixing plate (52) which is an integral structure with the cylindrical hollow body (51), the interior of the cylindrical hollow body (51) is provided with a longitudinal component movable cavity (53), the top of the cylindrical hollow body (51) is provided with a rod body through hole (54) which connects the external space and the top end of the longitudinal component movable cavity (53), the cylindrical hollow body (51) is provided with an inner movable plate (55) which can move axially along the longitudinal component movable cavity (53) inside the longitudinal component movable cavity (53), the bottom of the inner movable plate (55) is provided with a helical spring (56) in a compressed state, the upper surface of the inner movable plate (55) is fixedly installed with a longitudinal telescopic rod (57) which passes through the inner movable plate (55), and the top of the longitudinal telescopic rod (57) is provided with a fixing sleeve (58) which is an integral structure with the cylindrical hollow body (51) and fixedly installed on the shaft body of the fixed shaft structure (410).

6. A dust cleaning device for flour processing according to claim 5, characterized in that: The structural shape of the cross section of the rod body through hole (54) is consistent with the structural shape of the cross section of the longitudinal telescopic rod (57), both of which are polygonal structures, and the structural dimensions of the cross section of the rod body through hole (54) match the structural dimensions of the cross section of the longitudinal telescopic rod (57).

7. A dust cleaning device for flour processing according to claim 6, characterized in that: The invention also comprises a threaded support height adjustment mechanism (6), which is provided with a first external thread rod (66) and a second external thread rod (67) connected to the bottom support base plate (3) and the bottom fixing plate (52), a horizontal threaded sleeve (61) threadedly connected to the first external thread rod (66) and the second external thread rod (67) and capable of changing the distance between the first external thread rod (66) and the second external thread rod (67) when rotating, and a polygonal limit rod (611) inserted into the axis of the first external thread rod (66) and the second external thread rod (67) and capable of preventing the first external thread rod (66) and the second external thread rod (67) from rotating relative to each other.

8. A dust cleaning device for flour processing according to claim 7, characterized in that: The threaded support height adjustment mechanism (6) comprises a horizontal threaded sleeve (61) whose outer circumferential surface is provided with a polygonal rotating structure (612) that is easy to screw, a No. 1 external threaded rod (66) and a No. 2 external threaded rod (67); one end of the horizontal threaded sleeve (61) is provided with a No. 1 internal threaded cavity (62) with an inner concave structure, and the other end of the horizontal threaded sleeve (61) is provided with a No. 2 internal threaded cavity (63) with an inner concave structure; the rod body of the No. 1 external threaded rod (66) is installed inside the No. 1 internal threaded cavity (62) through the No. 1 threaded structure (64); the rod body of the No. 2 external threaded rod (67) is installed inside the No. 1 internal threaded cavity (62) through the No. 2 threaded structure (65). Inside the No. 2 internal thread cavity (63), the No. 1 external thread rod (66) and the No. 2 external thread rod (67) are provided with a polygonal limit cavity (610) with an inner concave structure at the opposite ends, and a polygonal limit rod (611) inserted into the polygonal limit cavity (610) is fixedly installed at the center of the horizontal thread sleeve (61), and one end of the No. 1 external thread rod (66) is provided with a No. 1 connecting plate (68) which is an integral structure with it and fixedly connected to the upper surface of the bottom support base plate (1), and one end of the No. 2 external thread rod (67) is provided with a No. 2 connecting plate (69) which is an integral structure with it and fixedly connected to the lower surface of the bottom fixing plate (52).

9. A dust cleaning device for flour processing according to claim 8, characterized in that: The structural shape of the cross section of the polygonal limiting cavity (610) is consistent with the structural shape of the cross section of the polygonal limiting rod (611), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal limiting cavity (610) match the structural dimensions of the cross section of the polygonal limiting rod (611).

10. A dust cleaning device for flour processing according to claim 9, characterized in that: The No. 1 thread structure (64) includes an internal thread structure arranged inside the No. 1 internal thread cavity (62) and an external thread structure arranged on the rod body of the No. 1 external thread rod (66); the No. 2 thread structure (65) includes an internal thread structure arranged inside the No. 2 internal thread cavity (63) and an external thread structure arranged on the rod body of the No. 2 external thread rod (67); and the spiral direction of the No. 1 thread structure (64) is opposite to the spiral direction of the No. 2 thread structure (65).

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