Flour separating screen

Abstract

The utility model relates to a flour separating screen which comprises a mounting frame and a screen box arranged on the mounting frame, a feeding hopper is arranged above the screen box, a discharging hopper is arranged below the screen box, a screen plate parallel to the screen box is arranged in the screen box, one end of the screen box is rotationally connected with the mounting frame, and the other end of the screen box is rotationally connected with the mounting frame. The screen box is driven by the driving mechanism to swing up and down with the end, rotationally connected with the mounting frame, of the screen box as a fulcrum, in the initial state, the end, away from the feeding hopper, of the screen box is obliquely arranged downwards, the two screen plates are arranged in the vertical direction at intervals, each screen plate is in sliding fit with the screen box, and the two screen plates are provided with screen meshes oppositely staggered in position respectively. According to the flour separating screen, multi-layer screening can be conducted on flour, the quality of the flour is guaranteed, blocky impurities large in size can be prevented from blocking holes of the screen in the screening process, and the situation that the screening efficiency of the flour is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flour screening, in particular to a flour sorting sieve. Background Art

[0002] Noodles are one of the main foods in people's daily life. In the production process of flour, in order to ensure the quality of flour, it is necessary to screen the flour to remove the lumps mixed in the flour. The flour screening devices available on the market mainly place the flour in a screen box with a screen inside, and drive the screen box to vibrate rapidly through a driving mechanism, thereby replacing the traditional manual screening of flour, which can effectively improve the screening efficiency of flour. However, the current flour sorting screen still has shortcomings: first, the larger lumps in the flour can easily block the holes of the screen, affecting the screening efficiency of the flour; second, in the process of screening the flour, most of them only perform single-layer screening, and single-layer screening can only screen out larger lumps, and smaller small particles of impurities will still be mixed with the flour, affecting the quality of the flour. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects, a flour sorting sieve is provided, which can not only perform multi-layer screening of flour to ensure the quality of flour, but also prevent large block impurities from blocking the holes of the sieve during the screening process, thereby avoiding affecting the screening efficiency of the flour.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a flour sorting sieve, comprising a mounting frame and a screen box arranged on the mounting frame, a feed hopper is arranged above the screen box, a discharge hopper is arranged below the screen box, a screen plate arranged parallel to the screen box is arranged in the screen box, one end of the screen box is rotatably connected to the mounting frame, and the screen box is driven by a driving mechanism to swing up and down with its end rotatably connected to the mounting frame as a fulcrum, in an initial state, the end of the screen box away from the feed hopper is inclined downward, two screen plates are arranged at intervals in the vertical direction, each screen plate is slidably matched with the screen box, and the two screen plates are respectively provided with screen meshes with relatively staggered positions.

[0005] Compared with the prior art, the beneficial effects of this solution are:

[0006] (1) In the initial state, the side of the screen box away from the feed hopper is tilted downward to facilitate the flour entering the screen box from the feed hopper to move along the tilted direction, thereby increasing the screening area. During the screening process, the screen box is driven up and down by the driving mechanism to shake the flour on the screen plate. During the shaking process, the powdered flour passes through the screen, and the lumps mixed in the flour are separated from the flour and shaken up and down to prevent them from blocking the holes on the screen and affecting the screening efficiency;

[0007] (2) Two sieve plates are provided along the vertical direction, and the sieves on the two sieve plates are staggered, which can further screen the flour. Compared with single-layer screening, double-layer screening can also screen out small particles of impurities mixed in the flour, and the impurity removal effect is better, so that the quality of the produced flour is higher.

[0008] As a preferred embodiment of the utility model, the screen box includes a material receiving part and a sealing part located above the material receiving part and detachably connected thereto, springs are provided around the sealing part, and both ends of the springs are respectively connected to the sealing part and a mounting frame located above the sealing part.

[0009] Beneficial effects of this program:

[0010] (1) When the driving mechanism drives the screen box to swing up and down with one end of the screen box connected to the mounting frame as a fulcrum, the other end of the screen box is connected to the mounting frame through a spring to prevent one end of the screen box from being suspended in the air, and the spring arranged between the screen box and the mounting frame can ensure that the swing of the screen box is elastic;

[0011] (2) The material receiving part and the sealing part are detachably connected, so that the sealing part can be opened to clean the inside of the screen box after use.

[0012] As a preferred embodiment of the utility model, a through groove matching the sieve plate is provided on the side of the material receiving part away from the feed hopper, a slide groove connected to the through groove is provided on the inner side wall of the material receiving part along its length direction, sliding blocks for slidingly cooperating with the slide groove are provided on both sides of the sieve plate, and a limiting plate for limiting the position of the sieve plate is provided on the material receiving part.

[0013] The beneficial effects of this solution are as follows: the sieve plate and the material receiving part are slidably matched through the slider and the slide groove. After the flour is sifted for a period of time, the holes on the sieve may be blocked by lumps mixed in the flour, so the sieve needs to be replaced. When replacing the sieve plate, the sieve plate can be taken out of the through groove by sliding it outward along the length direction of the material receiving part, and then the new sieve plate can be placed in the sieve box by sliding it inward along the length direction of the material receiving part, and it is limited by a limiting plate arranged on one side of the through groove so that it is fixed in the material receiving part. The structure is reasonable and the sieve plate is easy to replace; and the sieve plate matches the size of the through groove, and the flour will not fly out from the gap between the sieve plate and the through groove.

[0014] As a preferred embodiment of the utility model, three slide grooves and three through grooves are evenly spaced, and the two sieve plates pass through two of the through grooves respectively and slide in cooperation with the corresponding slide grooves.

[0015] The beneficial effects of this solution are as follows: in the process of screening flour, the two sieve plates are respectively located in the two slide grooves and fixed by the limit plates. When replacing the sieve plate, first put the new sieve plate into the sieve box along the slide groove where no sieve plate is placed, then take out one of the previous two sieve plates, and then put the new sieve plate into the sieve box along the slide groove where no sieve plate is placed, and then take out the previous sieve plate, to ensure that the screening of flour is not affected when the sieve plate is replaced, thereby improving efficiency.

[0016] As a preferred embodiment of the utility model, a first rotating shaft is rotatably connected to the feed hopper, a blade is fixedly connected to the first rotating shaft, and the first rotating shaft is driven to rotate by a driving mechanism.

[0017] The beneficial effect of this solution is that a rotatable blade is arranged in the feed hopper, which can break up the flour when it enters the screen box from the feed hopper, thereby better screening the flour.

[0018] As a preferred embodiment of the utility model, the driving mechanism includes a motor assembly, a first transmission assembly connected to the motor assembly, and a second transmission assembly connected to the first transmission assembly, the first transmission assembly includes a first driving wheel and a first driven wheel respectively fixedly connected to the output shaft of the motor in the motor assembly and the first rotating shaft, a first belt is connected between the first driving wheel and the first driven wheel, a second driving wheel is fixedly connected to the first rotating shaft, a second rotating shaft is fixedly connected to the screen box, a second driven wheel is fixedly connected to the second rotating shaft, a second belt is connected between the second driving wheel and the second driven wheel, and the rotation of the blades and the swing of the screen box are driven by the forward and reverse rotation of the motor.

[0019] The beneficial effects of this scheme are as follows: the rotation of the motor drives the first driving wheel to rotate, and the first driving wheel in turn drives the first belt and the first driven wheel to rotate. Since the first driven wheel is fixedly connected to the first rotating shaft, the first rotating shaft can rotate with the rotation of the first driven wheel, thereby driving the blades arranged on the first rotating shaft to rotate. The first rotating shaft and the second rotating shaft are respectively fixedly connected with the second driving wheel and the second driven wheel. The rotation of the first rotating shaft can drive the second driving wheel to rotate. The second driving wheel and the second driven wheel are connected by the second belt. The rotation of the second driving wheel drives the second driven wheel to rotate. The rotation of the second driven wheel in turn drives the second rotating shaft to rotate. Since the second rotating shaft is fixedly connected to the screen box, the screen box rotates with the rotation of the second driven wheel, that is, the rotation of the motor can simultaneously drive the rotation of the blades and the swing of the screen box, and they are driven by the same power, with a reasonable structure and power saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an embodiment of a flour sorting sieve of the present utility model.

[0021] Figure 2 for Figure 1Schematic diagram of the structure inside the middle screen box.

[0022] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0023] Figure 4 It is a schematic diagram of the structure of the feed hopper and blades. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to explain the present invention and will not limit the protection scope of the present invention.

[0025] The terms "first", "second" and the like in the specification, claims and embodiments of the present application are used to distinguish similar objects rather than to describe a specific order or sequential sequence.

[0026] The present invention is further described in detail below through preferred specific embodiments:

[0027] The figure marks in the drawings of the specification include: mounting frame 1, screen box 2, feed hopper 201, discharge hopper 202, sealing part 3, material receiving part 4, through groove 401, sieve plate 5, limit plate 6, inner plate 601, outer plate 602, driving mechanism 7, motor assembly 701, first rotating shaft 702, second rotating shaft 703, first driving wheel 704, first driven wheel 705, second driving wheel 706, second driven wheel 707, spring 8, mounting seat 9, blade 10.

[0028] As attached Figure 1 and attached Figure 4 As shown: the flour sorting screen of this embodiment includes a mounting frame 1 and a screen box 2 arranged on the mounting frame 1, the mounting frame 1 is a frame structure, the mounting frame 1 is rotatably connected to the second rotating shaft 703, one end of the screen box 2 is rotatably connected to the mounting frame 1 through the second rotating shaft 703, a feed hopper 201 is provided above the screen box 2, the feed hopper 201 is rotatably connected to the first rotating shaft 702, the first rotating shaft 702 is fixedly connected to the blade 10, a discharge hopper 202 is provided below the screen box 2, and the end of the screen box 2 away from the feed hopper 201 is inclined downward.

[0029] As attached Figure 1 and attached Figure 3As shown: the screen box 2 includes a material receiving portion 4 and a sealing portion 3 located above the material receiving portion 4 and detachably connected thereto, springs 8 are arranged around the sealing portion 3, and the two ends of the spring 8 are respectively connected to the sealing portion 3 and the mounting frame 1 located above the sealing portion 3, the discharge hopper 202 is arranged on one side of the material receiving portion 4, and three through grooves 401 are evenly spaced in the vertical direction on the side of the material receiving portion 4 away from the feed hopper 201, and the inner side wall of the material receiving portion 4 is evenly spaced along its length direction. There are three slide grooves respectively connected to the through groove 401, and a limit plate 6 is provided on one side of the through groove 401. The limit plate 6 includes a vertically arranged outer plate 602 and an inner plate 601 slidably matched with the outer plate 602. A compression spring is provided between the outer plate 602 and the inner plate 601. When the compression spring is in an extended state, the inner plate 601 exceeds the uppermost one of the three through grooves 401. When the compression spring is fully compressed, the inner plate 601 is lower than the lowermost one of the three through grooves 401.

[0030] As attached Figure 2 As shown: the material receiving portion 4 is provided with a sieve plate 5 arranged parallel to its upper surface, and two sieve plates 5 are arranged at intervals in the vertical direction, and only one is marked in the figure, each sieve plate 5 is slidably matched with the screen box 2, and the two sieve plates 5 are respectively provided with relatively staggered sieves, and sliders for sliding with the slide grooves are provided on both sides of the sieve plates 5, and the sizes of the sieve plates 5 and the through grooves 401 are matched, and the two sieve plates 5 respectively pass through two of the through grooves 401 and slide with the corresponding slide grooves.

[0031] As attached Figure 2 As shown: the rotation of the first rotating shaft 702 and the second rotating shaft 703 is driven by the driving mechanism 7, and the driving mechanism 7 includes a motor assembly 701, a first transmission assembly connected to the motor assembly 701, and a second transmission assembly connected to the first transmission assembly, the first transmission assembly includes a first driving wheel 704 and a first driven wheel 705 respectively fixedly connected to the output shaft of the motor in the motor assembly 701 and the first rotating shaft 702, a belt is connected between the first driving wheel 704 and the first driven wheel 705, a second driving wheel 706 is fixedly connected to the first rotating shaft 702, a second driven wheel 707 is fixedly connected to the second rotating shaft 703, and a belt is connected between the second driving wheel 706 and the second driven wheel 707, and the rotation of the blade 10 and the swing of the screen box 2 are driven by the forward and reverse rotation of the motor.

[0032] The preferred implementation mode of the present application is described in detail above in conjunction with the accompanying drawings. The typical known structures and common knowledge technologies in the preferred implementation mode are not described in detail here. Ordinary technicians in the relevant field can improve and implement the technical solution of the utility model based on their own abilities under the inspiration given by the present implementation mode. Some typical known structures, known methods or common knowledge technologies should not become obstacles for ordinary technicians in the relevant field to implement the present application.

[0033] The scope of protection required by this application shall be based on the contents of its claims, and the contents of the utility model, specific implementation methods and the contents recorded in the drawings of the specification shall be used to interpret the claims.

[0034] Within the technical concept of the present application, several modifications may be made to the specific implementation methods of the present application, and these modified specific implementation methods should also be regarded as within the protection scope of the present application.

Claims

1. A flour sorting sieve, comprising a mounting frame and a sieve box arranged on the mounting frame, wherein a feed hopper is arranged above the sieve box and a discharge hopper is arranged below the sieve box, characterized in that: A sieve plate arranged parallel to the screen box is provided in the screen box, and one end of the screen box is rotatably connected to the mounting frame. The screen box is driven by a driving mechanism to swing up and down with the end rotatably connected to the mounting frame as a fulcrum. In an initial state, the end of the screen box away from the feed hopper is tilted downward, and two sieve plates are spaced apart in the vertical direction, each sieve plate is slidably matched with the screen box, and relatively staggered sieves are respectively provided on the two sieve plates.

2. The flour sorting sieve according to claim 1, characterized in that: The screen box comprises a material receiving part and a sealing part located above the material receiving part and detachably connected thereto, springs are arranged around the sealing part, and two ends of the springs are respectively connected to the sealing part and a mounting frame located above the sealing part.

3. The flour sorting sieve according to claim 2, characterized in that: A through groove matching the sieve plate is provided on the side of the material receiving part away from the feed hopper, a slide groove connected to the through groove is provided on the inner side wall of the material receiving part along its length direction, sliding blocks for slidingly cooperating with the slide groove are provided on both sides of the sieve plate, and a limiting plate for limiting the sieve plate is provided on the material receiving part.

4. The flour sorting sieve according to claim 3, characterized in that: The slide grooves and through grooves are evenly spaced and three of them are arranged respectively, and the two sieve plates respectively pass through two of the through grooves and slide in cooperation with the corresponding slide grooves.

5. The flour sorting sieve according to claim 1, characterized in that: The feed hopper is rotatably connected to a first rotating shaft, and the first rotating shaft is fixedly connected to blades, and the first rotating shaft is driven to rotate by a driving mechanism.

6. The flour sorting sieve according to claim 5, characterized in that: The driving mechanism includes a motor assembly, a first transmission assembly connected to the motor assembly, and a second transmission assembly connected to the first transmission assembly, the first transmission assembly includes a first driving wheel and a first driven wheel respectively fixedly connected to the output shaft of the motor in the motor assembly and the first rotating shaft, a belt is connected between the first driving wheel and the first driven wheel, the first rotating shaft is fixedly connected to the second driving wheel, the screen box is fixedly connected to the second rotating shaft, the second driven wheel is fixedly connected to the second rotating shaft, a belt is connected between the second driving wheel and the second driven wheel, and the rotation of the blades and the swing of the screen box are driven by the forward and reverse rotation of the motor.

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