Pretreatment device for flour processing

Abstract

The pretreatment device comprises a box body, a water storage tank, a kneading mechanism and a net bag, the water storage tank is arranged at the bottom of the box body, the kneading mechanism and the flexible net bag are installed at the bottom of the box body, the upper portion of the net bag is open, the bottom of the net bag can be located in the water storage tank, the kneading mechanism is located below the net bag, and the net bag is connected with the kneading mechanism. The rubbing mechanism comprises a gear motor, a right crankshaft, a right bevel gear, a transmission shaft, a transmission bevel gear, a left crankshaft, a left bevel gear and a supporting seat. When the device is used, water is stored in the water storage tank firstly, so that the water surface is located above the net bag, then wheat grains are put into the net bag, then a gear motor is controlled to rotate, a right crankshaft can be driven to rotate, and therefore a left crankshaft and the right crankshaft rotate in opposite directions through rotation of a right bevel gear, a transmission bevel gear and a left bevel gear; therefore, wheat grains at the left part and the right part in the net bag can be pushed in opposite front and back directions, so that the wheat grains can annularly flow in the net bag.

Description

Technical Field

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

[0002] Flour is an important raw material for food production. Various pasta in daily life cannot be separated from it. Before making flour, the raw materials need to be cleaned to ensure the food safety of pasta. Taking wheat flour as an example, before making it, the wheat grains need to be cleaned, including removing the wheat husks and washing. However, the existing pretreatment device has poor cleaning effect when cleaning the wheat grains. It is difficult to achieve the two effects of removing the wheat husks and washing at the same time, which highlights the shortcomings of the existing technology. Summary of the invention

[0003] The object of the present invention is to provide a pretreatment device for flour processing, so as to solve the technical problem that the existing pretreatment device has a poor cleaning effect on flour raw materials.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A pretreatment device for flour processing, comprising a box body, a water storage tank, a kneading mechanism, and a net bag, wherein the bottom of the box body is provided with a water storage tank, and the kneading mechanism and a flexible net bag are installed at the bottom, the upper part of the net bag is open, and the bottom can be located in the water storage tank, the kneading mechanism is located below the net bag, the kneading mechanism comprises a reduction motor, a right crankshaft, a right bevel gear, a transmission shaft, a transmission bevel gear, a left crankshaft, a left bevel gear, and a support seat, the right end of the box body is fixed with a reduction motor, the right end shaft of the right crankshaft is coaxially fixed with the rotating shaft of the reduction motor, and the left end shaft is coaxially fixed with a right bevel gear Wheel, a transmission shaft is installed at the rear part of the box body along the front-to-back direction, and the front part of the transmission shaft is coaxially connected with a transmission bevel gear, a left crankshaft is installed at the left part of the box body, the left end shaft of the left crankshaft is rotationally connected to the box body, and the right end shaft is coaxially fixed with a left bevel gear, a vertical support seat is fixed at the bottom end of the inner wall of the box body, the left part of the support seat is rotationally connected to the right end shaft of the left crankshaft, and the right part is rotationally connected to the left end shaft of the right crankshaft, the left bevel gear, the transmission bevel gear and the right bevel gear are meshed, and a controller is also fixed to the box body, and the controller is electrically connected to the reduction motor.

[0005] On the basis of the above technical scheme, a plurality of vertical upper electric push rods are fixed on the upper part of the box body, each of the upper electric push rods is electrically connected to the controller, and an upper lifting frame is fixed to the bottom end of the push rod of each upper electric push rod, and the upper lifting frame is plugged with horizontal upper support frames on the left and right sides, and the upper support frame can be detached from the right part of the upper lifting frame, and the right part of the upper support frame is threadedly connected with a limiting bolt along the front and rear directions, and the limiting bolt can be plugged with the right part of the upper lifting frame, and the upper support frame is rotatably connected with a plurality of support shafts extending in the front and rear horizontal directions from left to right in sequence, and each support A mesh plate is radially fixed to the middle of the shaft, and a horizontal upper servo motor is fixed to the left part of the upper support frame. The upper servo motor is electrically connected to the controller in a freely pluggable manner. The transmission shaft of the upper servo motor and the support shaft at the leftmost part of the upper support frame and the adjacent support shafts are connected with a transmission ratio of one to one through a transmission mechanism. When the upper servo motor is energized and rotated, the support shafts can be rotated through the transmission mechanism. When the support shafts are rotated to a certain angle, the mesh plates can be pieced together into a flat support mesh plate. A through window is provided on the right part of the box.

[0006] On the basis of the above technical scheme, the net bag is foldable, and a plurality of vertical lower electric push rods are fixed at the bottom of the box body, and a horizontal lower lifting frame is commonly fixed to the top of the push rod of each lower electric push rod, and a horizontal lower servo motor is respectively fixed to the front and rear parts of the left end of the lower lifting frame, and each lower electric push rod and the lower servo motor are respectively electrically connected to the controller, and the rotating shafts of the two lower servo motors are respectively coaxially fixed with a screw rod, and the screw rod is arranged in the left and right directions and is rotatably connected to the right part of the lower lifting frame, and the left part of the lower lifting frame is fixedly connected to an upper support cylinder, and a horizontal light rod and a compression spring are fixed to the left part of the upper support cylinder along the left and right directions, and the light rod is intermittently inserted in the compression spring, and the lower lifting frame slides left and right from left to right in sequence. A left support plate, multiple middle support plates and a right support plate are connected, the left end of the left support plate is fixed to the right end of the compression spring, and the front and rear parts are respectively plugged with two screw rods with a gap, the front and rear parts of each middle support plate are respectively plugged with two screw rods with a gap, and the front and rear parts of the right support plate are respectively threadedly connected with two screw rods, the net bag, left support plate, middle support plate and right support plate can be plugged with the bare rod with a gap, the left and right parts of the net bag are fixed with the left support plate and the right support plate, the upper and middle part of the net bag is plugged with a gap with the lower lifting frame, each middle support plate is respectively fixed with a pulling belt, and each pulling belt is respectively fixed to the net bag, and when the lower servo motor is energized and rotated forward and reversely, it can drive the right support plate to slide left and right along the lower lifting frame through the screw rod.

[0007] On the basis of the above technical scheme, a vertical slot is fixed at each of the front and rear ends of the inner wall of the box body, and a detachable and vertical auxiliary sieve plate is jointly inserted into the two slots, and the auxiliary sieve plate passes through from left to right. A horizontal lower support cylinder is fixed to the bottom of the box body along the front and rear directions, and the transmission shaft is axially slidably connected to the lower support cylinder. An upper screw cover is sealed and threadedly connected to the rear of the lower support cylinder, and the upper screw cover is sealed and rotatably connected to the transmission shaft. When the upper screw cover rotates forward and backward, it can drive the transmission shaft to move forward and backward along the lower support cylinder. Vertical guide rails are fixed to each of the left and right parts of the inner wall of the box body. The left and right parts of the box body are connected with a detachable lifting seat by sliding up and down through guide rails. The bottom of the lifting seat is open downward, and the upper part is closed and fixed with a main sieve plate that passes through from top to bottom. The bottoms of the two lifting seats are hinged with connecting rods front and back respectively, and the bottoms of the two connecting rods are detachably connected to the left crankshaft and the right crankshaft respectively. The two main sieve plates are gathered in a shape inclined toward the middle and lower part of the box body. When the reduction motor rotates, it can drive the two lifting seats to move up and down through the left crankshaft, the right crankshaft and the connecting rod. The two lifting seats are in contact with the auxiliary sieve plate, and the front and rear parts are in contact with the front and rear ends of the inner wall of the box body.

[0008] On the basis of the above technical scheme, the connecting rod includes a connecting rod body, a screw, a clamp and a tightening nut. The crank journal part of the left crankshaft and the crank journal part of the right crankshaft are respectively installed with bearings. The inner ring of the bearing is interference fit with the left crankshaft and the right crankshaft. The bottom of the connecting rod body is semi-enclosed and inserted in the upper part of the bearing and can be completely separated from the bearing. The front and rear parts of the connecting rod are each fixed with a horizontal screw along the left and right directions. The bottom of the connecting rod body is horizontally inserted with clamps on the left and right sides. The front and rear parts of the clamp are inserted with the screw. The screw is threadedly connected with a tightening nut, and the tightening nut is tightened on the right end of the clamp.

[0009] Based on the above technical solution, a vertical drain pipe is fixed at the bottom of the box body, the drain pipe is sealed with a lower screw cover and is connected to the water storage tank. A soft net discharge cylinder is provided on the right side of the net bag, and the discharge cylinder can be opened and closed by a tie or a zipper.

[0010] Compared with the prior art, the present invention has the following advantages: when the present invention is used, water is first stored in the water tank so that the water surface is above the net bag, and then the wheat grains are put into the net bag, and then the reduction motor is controlled to rotate, which can drive the right crankshaft to rotate, thereby rotating through the right bevel gear, the transmission bevel gear and the left bevel gear, and then the left crankshaft and the right crankshaft rotate in opposite directions, so that the wheat grains on the left and right parts of the net bag can be pushed in opposite directions front and back, so that the wheat grains can flow in a circular shape in the net bag, thereby increasing the rubbing between the wheat grains and facilitating the shedding of wheat husks, dust and sand, and the left crankshaft and the right crankshaft can stir the water during the rotation process, thereby flushing the wheat grains, thereby improving the cleaning effect, and the fallen wheat husks can float on the water surface, which is convenient for the staff to salvage and remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cooperation between the lower support tube and the upper screw cover of the present invention.

[0012] Figure 2 It is a front sectional structural schematic diagram of the present invention.

[0013] Figure 3 It is a schematic diagram of the cooperation between the upper lifting frame and the upper supporting frame of the present invention.

[0014] Figure 4 It is a schematic diagram of the cooperation between the lower lifting frame and the net bag of the present invention.

[0015] Figure 5 It is a schematic diagram of the cooperation between the connecting rod and the lifting seat, the left crankshaft and the right crankshaft of the present invention.

[0016] Figure 6 It is a schematic diagram of the cooperation between the connecting rod body and the clamp of the present invention.

[0017] In the figure: 1, box body, 2, water storage tank, 4, net bag, 5, reduction motor, 6, right crankshaft, 7, right bevel gear, 8, transmission shaft, 9, transmission bevel gear, 10, left crankshaft, 11, left bevel gear, 12, support seat, 121, controller, 13, upper electric push rod, 14, upper lifting frame, 15, upper support frame, 16, limit bolt, 17, support shaft, 18, mesh plate, 19, upper servo motor, 21, window, 22, lower electric push rod, 23, lower lifting frame, 24, lower servo Servo motor, 25, screw rod, 26, upper support cylinder, 27, bare rod, 28, compression spring, 29, left support plate, 30, middle support plate, 31, right support plate, 32, pulling belt, 33, slot, 34, auxiliary sieve plate, 35, lower support cylinder, 36, upper screw cover, 37, guide rail, 38, lifting seat, 39, main sieve plate, 41, connecting rod body, 42, clamp, 43, screw rod, 44, tightening nut, 45, bearing, 46, drain pipe, 47, lower screw cover, 48, discharge cylinder. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-Figure 6 As shown, a pretreatment device for flour processing includes a box body 1, a water storage tank 2, a kneading mechanism, and a net bag 4. The box body 1 is provided with a water storage tank 2 at the bottom, and the kneading mechanism and the flexible net bag 4 are installed at the bottom. The upper part of the net bag 4 is open, and the bottom can be located in the water storage tank 2. The kneading mechanism is located below the net bag 4. The kneading mechanism includes a reduction motor 5, a right crankshaft 6, a right bevel gear 7, a transmission shaft 8, a transmission bevel gear 9, a left crankshaft 10, a left bevel gear 11, and a support seat 12. The reduction motor 5 is fixed at the right end of the box body 1, and the right end shaft of the right crankshaft 6 is coaxially fixed with the rotating shaft of the reduction motor 5, and the left end shaft is coaxially fixed with the right bevel gear 7. A transmission shaft 8 is installed at the rear part of the casing 1 along the front-to-back direction, and a transmission bevel gear 9 is coaxially rotatably connected at the front part of the transmission shaft 8. A left crankshaft 10 is installed at the left part of the casing 1, and the left end shaft of the left crankshaft 10 is rotatably connected to the casing 1, and a left bevel gear 11 is coaxially fixed to the right end shaft. A vertical support seat 12 is fixed to the bottom end of the inner wall of the casing 1, and the left part of the support seat 12 is rotatably connected to the right end shaft of the left crankshaft 10, and the right part is rotatably connected to the left end shaft of the right crankshaft 6. The left bevel gear 11, the transmission bevel gear 9 and the right bevel gear 7 are meshed. A controller 121 is also fixed to the casing 1, and the controller 121 is electrically connected to the reduction motor 5.

[0020] When in use, first fill water into the water storage tank 2 so that the water surface is above the net bag 4, then put the wheat grains into the net bag 4, and then control the reduction motor 5 to rotate, which can drive the right crankshaft 6 to rotate, thereby rotating through the right bevel gear 7, the transmission bevel gear 9 and the left bevel gear 11, and then the left crankshaft 10 and the right crankshaft 6 rotate in opposite directions, so that the wheat grains on the left and right parts of the net bag 4 can be pushed in opposite directions front and back, so that the wheat grains can flow in a circular shape in the net bag 4, thereby increasing the rubbing between the wheat grains and facilitating the shedding of wheat husks, dust and sand, etc., and the left crankshaft 10 and the right crankshaft 6 can stir the water during the rotation process, thereby flushing the wheat grains, thereby improving the cleaning effect, and the fallen wheat husks can float on the water surface, which is convenient for the staff to salvage and remove.

[0021] A plurality of vertical upper electric push rods 13 are fixed to the upper part of the box body 1, and each of the upper electric push rods 13 is electrically connected to the controller 121. An upper lifting frame 14 is fixed to the bottom end of the push rod of each upper electric push rod 13. The upper lifting frame 14 is plugged with horizontal upper support frames 15 on the left and right sides, and the upper support frame 15 can be detached from the right part of the upper lifting frame 14. The right part of the upper support frame 15 is threadedly connected with a limiting bolt 16 along the front-to-back direction, and the limiting bolt 16 can be plugged with the right part of the upper lifting frame 14. The upper support frame 15 is rotatably connected with a plurality of support shafts 17 extending in the front-to-back horizontal direction in sequence from left to right, and a mesh plate 18 is radially fixed to the middle part of each support shaft 17. A horizontal The upper servo motor 19 is electrically connected to the controller 121 so as to be freely pluggable. The plug-in and unplugging method can be implemented using male and female plugs in the prior art. The transmission shaft 8 of the upper servo motor 19 and the support shaft 17 at the leftmost part of the upper support frame 15 and the adjacent support shafts 17 are connected with each other through a transmission mechanism with a transmission ratio of one to one. The transmission mechanism is a known prior art, such as the meshing of a synchronous pulley and a synchronous belt. When the upper servo motor 19 is powered on and rotated, the transmission mechanism can rotate the support shafts 17. When the support shafts 17 are rotated to a certain angle, the mesh panels 18 can be assembled into a flat support mesh panel. A through window 21 is provided on the right side of the box body 1.

[0022] Furthermore, after the wheat grains are put into the net bag 4, the upper servo motor 19 is controlled to rotate until the support shafts 17 are rotated to separate the net plates 18, and then the upper electric push rod 13 is controlled to extend so that the upper support frame 15 is close to the net bag 4, and then the upper servo motor 19 is controlled to rotate until the net plates 18 are reassembled into a complete support net plate, and then the reduction motor 5 is controlled to rotate. At this time, the wheat grains in the net bag 4 are blocked by the support net plates, and can collide with the support net plates, thereby improving the rubbing effect and then improving the cleaning effect. Subsequently, the upper electric push rod 13 is controlled to retract the push rod, so that the support net plates can be lifted upward, so that a part of the wheat husks floating on the water surface can be salvaged, and then the upper support frame 15 can be conveniently pulled out from the window 21 by rotating the limit bolt 16 to conveniently dump the wheat husks.

[0023] The net bag 4 is foldable, and a plurality of vertical lower electric push rods 22 are fixed to the bottom of the box body 1, and a horizontal lower lifting frame 23 is fixed to the top of the push rod of each lower electric push rod 22. A horizontal lower servo motor 24 is fixed to the front and rear parts of the left end of the lower lifting frame 23, and each lower electric push rod 22 and the lower servo motor 24 are electrically connected to the controller 121 respectively. The rotating shafts of the two lower servo motors 24 are coaxially fixed with screw rods 25 respectively, and the screw rods 25 are arranged in the left and right directions and are rotatably connected to the right part of the lower lifting frame 23. The left part of the lower lifting frame 23 is fixedly connected to an upper support tube 26, and a horizontal light rod 27 and a compression spring 28 are fixed to the left part of the upper support tube 26 along the left and right directions. The light rod 27 is intermittently inserted in the compression spring 28, and the lower lifting frame 23 is connected to a left support plate 2 that slides left and right in sequence from left to right. 9. Multiple middle support plates 30 and one right support plate 31, the left end of the left support plate 29 is fixed to the right end of the compression spring 28, and the front and rear parts are respectively plugged with the two screw rods 25 with a gap, the front and rear parts of each middle support plate 30 are respectively plugged with the two screw rods 25 with a gap, and the front and rear parts of the right support plate 31 are respectively threadedly connected with the two screw rods 25, the net bag 4, the left support plate 29, the middle support plate 30 and the right support plate 31 can be plugged with the light rod 27 with a gap, the left and right parts of the net bag 4 are fixed to the left support plate 29 and the right support plate 31, the upper and middle part of the net bag 4 is plugged with the lower lifting frame 23 with a gap, each of the middle support plates 30 is respectively fixed with a pulling belt 32, and each of the pulling belts 32 is respectively fixed to the net bag 4, and when the lower servo motor 24 is energized and rotated forward and reversely, it can drive the right support plate 31 to slide left and right along the lower lifting frame 23 through the screw rod 25.

[0024] Furthermore, by controlling the lower servo motor 24 to rotate forward and reverse, the right support plate 31 can be driven to slide left and right along the lower lifting frame 23, so that the net bag 4 can be folded to different degrees. At this time, the volume of wheat grains that the net bag 4 can hold will also change. When the volume decreases, the gap between the wheat grains decreases, and then the left crankshaft 10 and the right crankshaft 6 can have more complete friction contact, thereby improving the cleaning effect of the wheat grains.

[0025] A vertical slot 33 is fixed at each of the front and rear ends of the inner wall of the box body 1, and a detachable and vertical auxiliary sieve plate 34 is inserted in the two slots 33. The auxiliary sieve plate 34 passes through from left to right. A horizontal lower support cylinder 35 is fixed to the bottom of the box body 1 along the front and rear directions. The transmission shaft 8 is axially slidably connected to the lower support cylinder 35. An upper screw cover 36 is sealed and threadedly connected to the rear of the lower support cylinder 35. The upper screw cover 36 is sealed and rotatably connected to the transmission shaft 8. When the upper screw cover 36 rotates forward and backward, it can drive the transmission shaft 8 to move forward and backward along the lower support cylinder 35. A vertical guide rail 37 is fixed to each of the left and right parts of the inner wall of the box body 1. The left and right parts of the box body 1 The two parts are connected to a detachable lifting seat 38 by sliding up and down through a guide rail 37. The bottom of the lifting seat 38 is open downward, and the upper part is closed and fixed with a main sieve plate 39 that passes through from top to bottom. The bottoms of the two lifting seats 38 are respectively hinged with connecting rods front and back, and the bottoms of the two connecting rods are respectively detachably connected to the left crankshaft 10 and the right crankshaft 6. The two main sieve plates 39 are gathered in a shape inclined toward the middle and lower part of the box body 1. When the reduction motor 5 rotates, it can drive the two lifting seats 38 to move up and down through the left crankshaft 10, the right crankshaft 6 and the connecting rod. The two lifting seats 38 are in contact with the auxiliary sieve plate 34, and the front and rear parts are in contact with the front and rear ends of the inner wall of the box body 1.

[0026] Furthermore, the pretreatment device can also screen the wheat grains to facilitate the removal of debris smaller than its volume, such as sand and silt. When in use, different functions can be achieved by disassembling or installing the connecting rod and the lifting seat 38. When screening is required, first control the net bag 4 to fold and compress, that is, control the lower servo motor 24 to rotate forward, so that the right support plate 31 moves to the left, thereby squeezing and pushing the middle support plate 30 and the left support plate 29 to move to the left, so that the compression spring 28 is compressed, and then the net bag 4 is compressed to the optimal state, and then the upper electric push rod 13 is controlled to retract the push rod until the upper support frame 15 moves upward to the highest point, and then the upper screw cover 36 is rotated to make the transmission bevel gear 9 disengage from the left bevel gear 11 and the right bevel gear 7 first, and then adjust the angle between the left crankshaft 10 and the right crankshaft 6 so that the angle between the two is one hundred and eighty degrees, and then reversely rotate the upper screw cover 36 to restore the left bevel gear 11, the transmission bevel gear 9 and the right bevel gear 7. The two lifting seats 38 are meshed together, and then the lifting seat 38 and the connecting rod are installed. Then the wheat grains are put into the top of the main mesh plate 18, and then the reduction motor 5 is controlled to rotate, which can drive the two lifting seats 38 to move up and down in opposite directions along the box body 1. When one of the lifting seats 38 moves to the highest point, the wheat grains on its main mesh plate 18 will pass over the auxiliary mesh plate 18 and slide to the middle part of the box body 1 onto the other auxiliary mesh plate 18. Screening is achieved in this reciprocating manner. When cleaning is required, the connecting rod and the lifting seat 38 are disassembled, and then the lower servo motor 24 is controlled to reverse, so that the right support plate 31 moves to the right and gradually pulls the middle support plate 30 and the left support plate 29 to the right through the net bag 4 until the net bag 4 is stretched, and the wheat grains can be cleaned.

[0027] The connecting rod includes a connecting rod body 41, a screw 43, a clamp 42 and a tightening nut 44. The crank journal part of the left crankshaft 10 and the crank journal part of the right crankshaft 6 are respectively installed with bearings 45. The inner ring of the bearing 45 is interference fit with the left crankshaft 10 and the right crankshaft 6. The bottom of the connecting rod body 41 is semi-enclosed and inserted in the upper part of the bearing 45 and can be completely separated from the bearing 45. The front and rear parts of the connecting rod are each fixed with a horizontal screw 43 in the left and right directions. The bottom of the connecting rod body 41 is horizontally inserted with a clamp 42. The front and rear parts of the clamp 42 are inserted with the screw 43. The screw 43 is threadedly connected with a tightening nut 44, and the tightening nut 44 is tightened on the right end of the clamp 42.

[0028] Furthermore, when disassembling or installing the connecting rod and the lifting seat 38, the clamp 42 can be disassembled by rotating the tightening nut 44 to tighten it against the clamp 42, and then pushing and pulling the clamp 42, thereby facilitating the connection rod and the bearing 45 to be matched or disengaged. When the match is disengaged, the lifting seat 38 is moved upward to disengage it from the guide rail 37, and the lifting seat 38 can be disassembled. Conversely, the lifting seat 38 can be installed. When the left crankshaft 10 and the right crankshaft 6 squeeze the net bag 4 to rub the wheat grains, the transmission bevel gear 9 can be disengaged from the left bevel gear 11 and the right bevel gear 7 first, and then re-engaged. During this period, the angle between the left crankshaft 10 and the right crankshaft 6 is adjusted to zero degrees, so that the left crankshaft 10 and the right crankshaft 6 can rub the net bag 4 at the same time, thereby enhancing the rubbing intensity and improving the cleaning effect.

[0029] A vertical drain pipe 46 is fixed to the bottom end of the box body 1, and the drain pipe 46 is sealed with a lower screw cover 47 and is connected to the water storage tank 2. A soft net discharge cylinder 48 is provided on the right side of the net bag 4, and the discharge cylinder 48 can be opened and closed by a tie or a zipper.

[0030] Furthermore, by removing the screw cover 47 , the water and mud in the water storage tank 2 can be conveniently discharged through the drain pipe 46 , and the cleaned wheat grains can be conveniently discharged through the discharge barrel 48 . The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A pretreatment device for flour processing, comprising a housing (1), a water storage tank (2), a kneading mechanism, and a net bag (4), wherein the housing (1) is provided with a water storage tank (2) at the bottom, and the kneading mechanism and a flexible net bag (4) are installed at the bottom, the upper part of the net bag (4) is open, and the bottom can be located in the water storage tank (2), and the kneading mechanism is located below the net bag (4), characterized in that: The kneading mechanism comprises a reduction motor (5), a right crankshaft (6), a right bevel gear (7), a transmission shaft (8), a transmission bevel gear (9), a left crankshaft (10), a left bevel gear (11), and a support seat (12); the reduction motor (5) is fixed to the right end of the housing (1); the right end shaft of the right crankshaft (6) is coaxially fixed with the rotating shaft of the reduction motor (5); and the right bevel gear (7) is coaxially fixed to the left end shaft; the transmission shaft (8) is installed at the rear of the housing (1) in the front-to-back direction; the front of the transmission shaft (8) is coaxially connected to the transmission bevel gear (9); and the left part of the housing (1) is installed A left crankshaft (10), the left end shaft of the left crankshaft (10) is rotationally connected to the housing (1), and the right end shaft is coaxially fixed with a left bevel gear (11), a vertical support seat (12) is fixed to the bottom end of the inner wall of the housing (1), the left portion of the support seat (12) is rotationally connected to the right end shaft of the left crankshaft (10), and the right portion is rotationally connected to the left end shaft of the right crankshaft (6), the left bevel gear (11), the transmission bevel gear (9) and the right bevel gear (7) are meshed, and a controller (121) is also fixed to the housing (1), and the controller (121) is electrically connected to the reduction motor (5).

2. A flour processing pretreatment device according to claim 1, characterized in that: A plurality of vertical upper electric push rods (13) are fixed to the upper part of the box body (1), each of the upper electric push rods (13) is electrically connected to the controller (121), and an upper lifting frame (14) is fixed to the bottom end of each push rod of the upper electric push rod (13), and a horizontal upper support frame (15) is plugged in the left and right of the upper lifting frame (14), and the upper support frame (15) can be detached from the right part of the upper lifting frame (14), and the right part of the upper support frame (15) is threadedly connected to a limiting bolt (16) in the front-to-back direction, and the limiting bolt (16) can be plugged in with the right part of the upper lifting frame (14), and the upper support frame (15) is rotatably connected to a plurality of support shafts (17) extending in the front-to-back horizontal direction in sequence from left to right, and the middle part of each support shaft (17) A mesh plate (18) is fixed radially, and a horizontal upper servo motor (19) is fixed on the left side of the upper support frame (15). The upper servo motor (19) is electrically connected to the controller (121) so as to be freely pluggable. A transmission shaft (8) of the upper servo motor (19) and the support shaft (17) at the leftmost part of the upper support frame (15) and two adjacent support shafts (17) are connected via a transmission mechanism with a transmission ratio of one to one. When the upper servo motor (19) is powered on and rotated, the transmission mechanism can cause each support shaft (17) to rotate. When each support shaft (17) rotates to a certain angle, the mesh plates (18) can be assembled into a flat support mesh plate. A through window (21) is provided on the right side of the box body (1).

3. A flour processing pretreatment device according to claim 2, characterized in that: The net bag (4) is foldable. A plurality of vertical lower electric push rods (22) are fixed to the bottom of the box body (1). A horizontal lower lifting frame (23) is commonly fixed to the top of each lower electric push rod (22). A horizontal lower servo motor (24) is fixed to the front and rear parts of the left end of the lower lifting frame (23). Each lower electric push rod (22) and the lower servo motor (24) are respectively electrically connected to the controller (121). The rotating shafts of the two lower servo motors (24) are respectively coaxially fixed. A screw rod (25) is fixedly provided, the screw rod (25) is arranged in the left-right direction and is rotatably connected to the right part of the lower lifting frame (23); the left part of the lower lifting frame (23) is fixedly connected to an upper support tube (26); the left part of the upper support tube (26) is fixed with a horizontal light rod (27) and a compression spring (28) along the left-right direction; the light rod (27) is intermittently inserted in the compression spring (28); the lower lifting frame (23) is slidably connected to a left support plate (29), a plurality of The net bag (4), the left support plate (29), the middle support plate (30) and the right support plate (31), the left end of the left support plate (29) being fixed to the right end of the compression spring (28), and the front and rear parts being respectively plugged with the two screw rods (25) at intervals, the front and rear parts of each of the middle support plates (30) being respectively plugged with the two screw rods (25) at intervals, and the front and rear parts of the right support plate (31) being respectively threadedly connected with the two screw rods (25), and the net bag (4), the left support plate (29), the middle support plate (30) and the right support plate (31) being able to be connected with the optical The rods (27) are interlocked with each other at intervals, the left and right parts of the net bag (4) are fixed to the left support plate (29) and the right support plate (31), the middle and upper part of the net bag (4) are interlocked with the lower lifting frame (23), each of the middle support plates (30) is fixed with a pulling belt (32), and each of the pulling belts (32) is fixed to the net bag (4), and when the lower servo motor (24) is powered on and rotated forward and backward, it can drive the right support plate (31) to slide left and right along the lower lifting frame (23) through the screw rod (25).

4. A flour processing pretreatment device according to claim 3, characterized in that: The inner wall of the box body (1) is respectively fixed with a vertical slot (33) at both ends, and the two slots (33) are commonly connected with a detachable and vertical auxiliary sieve plate (34), and the auxiliary sieve plate (34) is passed through from left to right. A horizontal lower support tube (35) is fixed to the bottom of the box body (1) along the front-to-back direction, and the transmission shaft (8) is axially slidably connected to the lower support tube (35). The rear part of the lower support tube (35) is sealed and threadedly connected with an upper screw cover (36), and the upper screw cover (36) is sealed and rotatably connected to the transmission shaft (8). When the upper screw cover (36) rotates forward and backward, it can drive the transmission shaft (8) to move forward and backward along the lower support tube (35). The left and right parts of the inner wall of the box body (1) are respectively fixed with a vertical guide rail (37). The box body (1) ) The left and right parts are connected to a detachable lifting seat (38) by means of a guide rail (37) so as to slide up and down. The bottom of the lifting seat (38) is open downwards, and the upper part is closed and fixed with a main sieve plate (39) that penetrates from top to bottom. The bottoms of the two lifting seats (38) are respectively hinged with connecting rods front and back. The bottoms of the two connecting rods are respectively connected to the left crankshaft (10) and the right crankshaft (6) in a detachable rotational manner. The two main sieve plates (39) are in a clustered shape inclined toward the middle and lower part of the box body (1). When the reduction motor (5) rotates, the two lifting seats (38) can be driven to move up and down through the left crankshaft (10), the right crankshaft (6) and the connecting rod. The two lifting seats (38) are in contact with the auxiliary sieve plate (34), and the front and rear parts are in contact with the front and rear ends of the inner wall of the box body (1).

5. A flour processing pretreatment device according to claim 4, characterized in that: The connecting rod comprises a connecting rod body (41), a screw (43), a clamp (42) and a tightening nut (44); the crank journal part of the left crankshaft (10) and the crank journal part of the right crankshaft (6) are respectively installed with bearings (45); the inner ring of the bearing (45) is plugged with the left crankshaft (10) and the right crankshaft (6) in an interference fit; the bottom of the connecting rod body (41) is plugged into the upper part of the bearing (45) in a semi-enclosed shape and can be completely separated from the bearing (45); the front and rear parts of the connecting rod are respectively fixed with a horizontal screw (43) in the left and right directions; the bottom of the connecting rod body (41) is horizontally plugged with a clamp (42) on the left and right sides; the front and rear parts of the clamp (42) are plugged with the screw (43); the screw (43) is threadedly connected with a tightening nut (44); the tightening nut (44) is tightened on the right end of the clamp (42).

6. A flour processing pretreatment device according to any one of claims 1 to 5, characterized in that: A vertical drain pipe (46) is fixed at the bottom end of the box body (1), the drain pipe (46) is sealed with a lower screw cover (47) and is in communication with the water storage tank (2), and a net-made and flexible discharge cylinder (48) is provided on the right side of the net bag (4), and the discharge cylinder (48) can be opened and closed by means of a tie or a zipper.

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