Screening device for low-temperature grinding of grains and use method

Abstract

The invention discloses a screening device for grain low-temperature grinding and a using method, and relates to the technical field of grain screening, the screening device for grain low-temperature grinding comprises a rack, a driving disc is arranged at the top of the rack, a supporting barrel is arranged on the driving disc, a heat exchange layer is arranged in the supporting barrel, a rotating rod is arranged in the supporting barrel, and a rotating shaft is arranged in the rotating rod; a spiral blade used for conveying grains is arranged outside the rotating rod, a discharging port is formed in the outer side wall of the supporting cylinder, a supporting frame is arranged between the guiding disc and the driving disc, a sliding groove is formed in the outer portion of the supporting frame, and a supporting block and a transmission block are arranged in the sliding groove in a sliding mode. The heat exchange layer in the supporting barrel can cool the passing grains, subsequent low-temperature grinding of the grains is facilitated, the movable frame conducts multi-stage screening on the grains through the screen arranged in the movable frame, the movable frame drives the screen to vibrate up and down, automatic screening of the grains can be achieved, and the screening and processing efficiency of the grains is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain screening, and specifically to a screening device and a usage method for low-temperature milling of grains. Background Art

[0002] Low-temperature milling of grains refers to controlling the milling temperature during the grain processing process to mill the grains at a relatively low temperature, so as to reduce the nutrient loss of the grains. The principle is to use the sprayed cold air to take away the heat generated by grinding, thereby inhibiting the temperature rise and achieving the effect of low-temperature milling, which can significantly retain the nutrients inside the grains, reduce the risk of thermal decomposition, and maintain the natural color and fragrance of the grains.

[0003] Low-temperature milling has higher requirements for grains, such as more strict moisture control and more refined impurity removal to prevent the additional burden on the equipment at low temperatures. Therefore, it is necessary to screen the grains. The existing grain screening is usually manually carried out by users using a sieve, which cannot achieve continuous screening of grains, has low screening efficiency and poor screening effect, and cannot meet the usage requirements of low-temperature milling of grains. Summary of the Invention

[0004] The purpose of the present invention is to provide a screening device and a usage method for low-temperature milling of grains to solve the problem of inconvenient use of the existing screening devices.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A screening device for low-temperature milling of grains, including a frame, and further including: A support cylinder, a driving disk is arranged on the top of the frame, a support cylinder is arranged on the driving disk, a heat exchange layer is arranged inside the support cylinder, a rotating rod is arranged inside the support cylinder, a spiral blade for conveying grains is arranged outside the rotating rod, a discharge port is arranged on the outer side wall of the support cylinder, a guiding disk is arranged on the top of the support cylinder, a support frame is arranged between the guiding disk and the driving disk, a sliding groove is opened on the outer side of the support frame, a support block and a transmission block are slidably arranged inside the sliding groove, a support frame is arranged on the support block, a movable frame is arranged inside the support frame, a sieve for grain screening is arranged at the bottom of the movable frame, a square groove is opened on the support frame, a slider is arranged inside the square groove, a shear fork rod is arranged between the slider and the transmission block, a limiting column is arranged at the bottom end of the shear fork rod, a guiding plate is arranged at the central position of the support frame, a limiting groove matched with the limiting column is opened on the guiding plate, a driving rod is arranged on the transmission block, a guide rail is arranged outside the support cylinder, and the driving rod slidably penetrates into the guide rail; The drive plate, a guide frame is provided on the support frame, a drive plate is provided outside the movable frame, the drive plate passes through the guide frame and is slidably engaged therewith, a lead screw is provided inside the square groove, and the slider is sleeved on the lead screw through a threaded groove opened inside. One end of the lead screw passes through the support frame and is provided with a turntable, a pressure rod is provided on the turntable, a drive groove is opened on the drive plate, a support spring is provided inside the guide frame, and one end of the support spring is connected to the drive plate; The drive mechanism is arranged inside the frame and can drive the rotating rod and the support frame to rotate.

[0006] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions: In an optional solution: the drive mechanism includes a gear disk, a motor and a transmission gear. A fixed plate is arranged inside the frame, a motor is arranged on the fixed plate, the bottom end of the rotating rod passes through the support cylinder and is connected to the rotating end of the motor, a drive gear is arranged outside the rotating rod, a gear disk is arranged outside the drive disk, a mounting rod is arranged on the fixed plate, and a transmission gear meshing with the drive gear is arranged on the mounting rod. Both of the two transmission gears are meshed with the gear disk.

[0007] In an optional solution: an air outlet plate is arranged on the top of the frame, a plurality of air outlets are arranged on the air outlet plate, a blower is arranged inside the frame, and a control panel is arranged outside the frame.

[0008] In an optional solution: a rotating shaft is arranged outside the movable frame, and the movable frame is rotatably arranged inside the support frame through the rotating shaft. A groove is opened on the turntable, and a telescopic spring is arranged inside the groove. One end of the telescopic spring is connected to the pressure rod.

[0009] In an optional solution: a guide groove is opened inside the movable frame, a movable block is arranged inside the guide groove, a turning rod is arranged between the two movable blocks, a baffle is arranged inside the movable frame, and a fixing pin is arranged on the baffle.

[0010] In an optional solution: a fixing frame is arranged on the top of the frame, a feed hopper is arranged on the fixing frame, and the bottom end of the feed hopper penetrates into the support cylinder.

[0011] A method for using a screening device for low-temperature milling of grains includes the following steps: 1) Move the screening device to the working area, check whether the screen is damaged or blocked, and install multiple groups of screens into the movable frame in sequence; 2) Introduce a low-temperature medium into the heat exchange layer inside the support cylinder, start the motor inside the frame, the motor drives the rotating rod and the drive disk to rotate, the drive disk drives the support frame and the support frame to move, and the support frame drives the movable frame and the screen inside to rotate up and down; 3) Slowly pour the grains into the interior of the feed hopper. The rotating rod conveys the grains upward by driving the rotation of the spiral blades. Multiple sets of sieve nets screen the grains. After the screening is completed, close the feed inlet and the motor, and then take out the grains in different movable frames in sequence to complete the screening of the grains.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The screening device for low-temperature grinding of grains can achieve multi-stage screening of grains, eliminating the need for users to hold the sieve nets for screening, making the screening of grains more convenient. The heat exchange layer inside the support cylinder can cool the passing grains, facilitating subsequent low-temperature grinding of grains. The motor drives the rotating rod and the drive disk to rotate. The two drive rods on the support frame move along the guide rails, and multiple support frames and movable frames move up and down reciprocally. The movable frame screens the grains through the sieve nets arranged inside, and the movable frame drives the sieve net to vibrate up and down, enabling automatic screening of grains, improving the screening and processing efficiency of grains, and achieving better screening effects. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the screening device for low-temperature grinding of grains.

[0014] Figure 2 It is a cross-sectional view of the frame in the screening device for low-temperature grinding of grains.

[0015] Figure 3 It is a cross-sectional view of the support frame in the screening device for low-temperature grinding of grains.

[0016] Figure 4 It is a schematic structural diagram of the turntable in the screening device for low-temperature grinding of grains.

[0017] Figure 5 It is a schematic structural diagram of the transmission plate in the screening device for low-temperature grinding of grains.

[0018] Figure 6 It is a schematic structural diagram of the support frame in the screening device for low-temperature grinding of grains.

[0019] Figure 7 It is a schematic structural diagram of the drive rod in the screening device for low-temperature grinding of grains.

[0020] Figure 8 It is a schematic structural diagram of the guide rail in the screening device for low-temperature grinding of grains.

[0021] Figure 9 It is a schematic structural diagram of the gear disk in the screening device for low-temperature grinding of grains.

[0022] Figure 10 It is a schematic structural diagram of the fixed plate in the screening device for low-temperature grinding of grains.

[0023] Annotation of reference numerals: 1 - frame, 101 - fixing plate, 2 - support cylinder, 201 - heat exchange layer, 3 - guide plate, 4 - discharge port, 5 - drive plate, 6 - fixing frame, 7 - air outlet plate, 8 - air outlet, 9 - support frame, 901 - sliding groove, 10 - feed hopper, 11 - movable frame, 111 - sieve, 112 - guide groove, 12 - support block, 13 - support frame, 131 - square groove, 132 - guide frame, 14 - control panel, 15 - blower, 16 - motor, 17 - rotating rod, 18 - spiral blade, 19 - guide rail, 20 - baffle, 21 - movable block, 22 - turning rod, 23 - turntable, 231 - groove, 232 - telescopic spring, 24 - lead screw, 25 - fixing pin, 26 - pressing rod, 27 - rotating shaft, 28 - support spring, 29 - transmission plate, 291 - transmission groove, 30 - slider, 31 - transmission block, 311 - transmission block A, 312 - transmission block B, 32 - scissor rod, 33 - guide plate, 331 - limit groove, 34 - limit post, 35 - drive rod, 36 - gear disc, 37 - mounting rod, 38 - transmission gear, 39 - drive gear. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] As Figures 1-10 shown, a screening device for low-temperature milling of grains provided by an embodiment of the present invention includes a frame 1, and further includes: Support cylinder 2, a driving disk 5 is rotatably arranged at the top of the frame 1, the support cylinder 2 is rotatably arranged on the driving disk 5, a heat exchange layer 201 is arranged inside the support cylinder 2, and a cooling medium such as cooling water is introduced, which can cool the grains inside the support cylinder 2 and facilitate subsequent low-temperature milling. A rotating rod 17 is rotatably arranged inside the support cylinder 2, a spiral blade 18 for conveying grains is arranged outside the rotating rod 17, a discharge port 4 is arranged on the outer side wall of the support cylinder 2, the rotating rod 17 drives the spiral blade 18 to rotate, the spiral blade 18 conveys the grains, and the grains move upward along the support cylinder 2 and are discharged through the discharge port 4. A guiding disk 3 is rotatably arranged at the top of the support cylinder 2, a support frame 9 is fixedly arranged between the guiding disk 3 and the driving disk 5, a sliding groove 901 is arranged outside the support frame 9, and a plurality of support blocks 12 and transmission blocks 31 are slidably arranged inside the sliding groove 901. A support frame 13 is fixedly arranged on the support block 12, a movable frame 11 is rotatably arranged inside the support frame 13, a sieve mesh 111 for screening grains is arranged at the bottom of the movable frame 11, sieve meshes 111 are arranged inside a plurality of movable frames 11, and the pore diameters of the plurality of sieve meshes 111 decrease sequentially from top to bottom, which is convenient for multi-stage screening of grains. A square groove 131 is arranged on the support frame 13, a slider 30 is slidably arranged inside the square groove 131, a scissors rod 32 is rotatably arranged between the slider 30 and the transmission block 31, a limiting column 34 is arranged at the bottom end of the scissors rod 32, a guiding plate 33 is arranged at the central position of the support frame 9, and a limiting groove 331 matched with the limiting column 34 is arranged on the guiding plate 33, that is, the limiting column 34 can only slide horizontally along the limiting groove 331. As Figure 6 shown, driving rods 35 are arranged on both the transmission block A 311 and the transmission block B 312. The transmission block A 311 and the transmission block B 312 move away from each other, the scissors rod 32 rotates and drives the support frame 13 to move through the slider 30, so that the support frames 13 on both sides of the guiding plate 33 move away from each other, and the support frame 13 drives the movable frame 11 and the sieve mesh 111 to move. A guide rail 19 is arranged outside the support cylinder 2, and both driving rods 35 slide into the guide rail 19. The structure of the guide rail 19 is as Figure 8 shown. The driving disk 5 drives the support frame 9 to rotate, the support frame 9 drives the driving rod 35 to move, and the two groups of driving rods 35 move along the guide rail 19 and drive the transmission block A 311 and the transmission block B 312 to approach or move away from each other, thereby driving a plurality of support frames 13 and movable frames 11 to move up and down reciprocally, which is convenient for screening the grains inside; The transmission plate 29, a guiding frame 132 is arranged on the support frame 13, an arc-shaped groove is formed inside the guiding frame 132, the transmission plate 29 is fixedly arranged outside the movable frame 11, the transmission plate 29 is slidably arranged inside the arc-shaped groove, a lead screw 24 is rotatably arranged inside the square groove 131, the slider 30 is sleeved on the lead screw 24 through a threaded groove formed inside, one end of the lead screw 24 passes through the support frame 13 and is provided with a turntable 23, a pressing rod 26 is arranged on the turntable 23, a transmission groove 291 is formed on the transmission plate 29, a support spring 28 is arranged inside the guiding frame 132, one end of the support spring 28 is connected to the transmission plate 29, the slider 30 slides along the square groove 131 and drives the lead screw 24 to rotate, the lead screw 24 drives the turntable 23 arranged at one end to rotate, and the rotation direction of the turntable 23 is as Figure 4 shown. The turntable 23 presses the transmission plate 29 downward through the pressing rod 26, the transmission plate 29 drives the movable frame 11 to rotate downward, the support spring 28 is compressed and generates an upward elastic force, the grains move downward along the inclined movable frame 11, the sieve mesh 111 screens the grains, the grains with smaller sizes fall into the interior of the lower movable frame 11. When the pressing rod 26 moves to the opening position of the transmission groove 291, the pressing rod 26 is separated from the transmission plate 29, the support spring 28 drives the movable frame 11 to rotate upward, the movable frame 11 drives the sieve mesh 111 to vibrate upward, screens the grains, can simulate the action of a user holding the sieve mesh and vibrating it upward, and has a better screening effect on the grains; A driving mechanism, arranged inside the machine frame 1, can drive the rotating rod 17 and the support frame 9 to rotate.

[0027] As Figures 7-10 shown, as a preferred embodiment of the present invention, the driving mechanism includes a gear disc 36, a motor 16 and a transmission gear 38. A fixed plate 101 is fixedly arranged inside the machine frame 1, the motor 16 is arranged on the fixed plate 101, the bottom end of the rotating rod 17 passes through the support cylinder 2 and is connected to the rotating end of the motor 16, a driving gear 39 is arranged outside the rotating rod 17, a gear disc 36 is arranged outside the driving disc 5, an installation rod 37 is arranged on the fixed plate 101, a transmission gear 38 meshing with the driving gear 39 is arranged on the installation rod 37, both of the two transmission gears 38 are meshed with the gear disc 36, the motor 16 drives the gear disc 36 to rotate through the meshing of the gear set, the gear disc 36 drives the driving disc 5 to rotate, and the driving disc 5 drives the support frame 9 to rotate.

[0028] As Figures 1-2As shown, as a preferred embodiment of the present invention, an air outlet plate 7 is provided at the top of the frame 1. A plurality of air outlets 8 are provided on the air outlet plate 7. A blower 15 is provided inside the frame 1. A control panel 14 is provided outside the frame 1. The air outlets 8 blow air outwards. Mildew occurs inside the grains, making them lighter in weight. The mildewed grains are blown out by the blowing method.

[0029] As Figures 1-5 As shown, as a preferred embodiment of the present invention, a rotating shaft 27 is provided outside the movable frame 11. The movable frame 11 is rotatably arranged inside the support frame 13 through the rotating shaft 27. A groove 231 is formed on the turntable 23. A telescopic spring 232 is provided inside the groove 231. One end of the telescopic spring 232 is connected to the pressure rod 26.

[0030] As Figures 1-5 As shown, as a preferred embodiment of the present invention, a guide groove 112 is formed inside the movable frame 11. A movable block 21 is provided inside the guide groove 112. A turning rod 22 is rotatably arranged between the two movable blocks 21. The movable frame 11 vibrates up and down. The movable block 21 drives the turning rod 22 to slide back and forth along the guide groove 112, which can turn the grains, making the sieving speed of the grains faster. A baffle 20 is provided inside the movable frame 11. A fixing pin 25 is provided on the baffle 20. By pulling out the fixing pin 25, the baffle 20 can be separated from the movable frame 11, so that the sieved grains slide out from the position of the baffle 20, facilitating the collection of the grains.

[0031] As Figure 1 As shown, as a preferred embodiment of the present invention, a fixing frame 6 is provided at the top of the frame 1. The support cylinder 2 is connected to the fixing frame 6, that is, the support cylinder 2 is fixedly connected to the frame 1 through the fixing frame 6. A feed hopper 10 is provided on the fixing frame 6. The bottom end of the feed hopper 10 penetrates into the support cylinder 2.

[0032] A method for using a screening device for low-temperature milling of grains, characterized by comprising the following steps: 1) Move the screening device to the working area, check whether the sieve mesh 111 is damaged or blocked, and install multiple groups of sieve meshes 111 into the movable frame 11 in sequence; 2) Introduce the low-temperature medium into the heat exchange layer 201 inside the support cylinder 2, which can cool the grains inside the support cylinder 2. Start the motor 16 inside the frame 1. The motor 16 drives the rotating rod 17 and the driving disk 5 to rotate. The driving disk 5 drives the support frame 9 and the support frame 13 to move. The two groups of driving rods 35 on the support frame 9 move along the guide rail 19. The transmission block A311 and the transmission block B312 approach or move away from each other, which can drive multiple support frames 13 and the movable frame 11 to move up and down reciprocally. The movable frame 11 performs multi-stage screening on the grains through the sieve mesh 111 arranged inside; 3) After the screening is completed, close the feed inlet and the motor 16, and take out the grains inside different movable frames 11 in sequence, then the screening of the grains can be completed.

[0033] As mentioned above, it is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A screening device for low-temperature grinding of grains, comprising a frame, characterized in that, Further included are: A support cylinder, on the top of the frame is provided with a driving disk, on the driving disk is provided with the support cylinder, inside the support cylinder is provided with a heat exchange layer, inside the support cylinder is provided with a rotating rod, outside the rotating rod is provided with a spiral blade for conveying grains, on the outer side wall of the support cylinder is provided with a discharge port, on the top of the support cylinder is provided with a guiding disk, between the guiding disk and the driving disk is provided with a support frame, on the outside of the support frame is provided with a sliding groove, inside the sliding groove are slidably arranged a support block and a transmission block, on the support block is provided with a support frame, inside the support frame is provided with a movable frame, at the bottom of the movable frame is provided with a screen for screening grains, on the support frame is provided with a square groove, inside the square groove is provided with a slider, between the slider and the transmission block is provided with a scissors rod, at the bottom end of the scissors rod is provided with a limiting column, at the central position of the support frame is provided with a guiding plate, on the guiding plate is provided with a limiting groove matching with the limiting column, on the transmission block is provided with a driving rod, outside the support cylinder is provided with a guide rail, and the driving rod slidably penetrates into the guide rail; A transmission plate, on the support frame is provided with a guiding frame, outside the movable frame is provided with the transmission plate, the transmission plate passes through the guiding frame and is slidably matched with it, inside the square groove is provided with a lead screw, the slider is sleeved on the lead screw through a threaded groove opened inside, one end of the lead screw penetrates out of the support frame and is provided with a turntable, on the turntable is provided with a pressing rod, on the transmission plate is provided with a transmission groove, inside the guiding frame is provided with a support spring, and one end of the support spring is connected with the transmission plate; A driving mechanism, arranged inside the frame, capable of driving the rotating rod and the support frame to rotate.

2. The screening device for low-temperature grinding of grains according to claim 1, characterized in that, The driving mechanism includes a gear disk, a motor and a transmission gear, inside the frame is provided with a fixing plate, on the fixing plate is provided with the motor, the bottom end of the rotating rod penetrates out of the support cylinder and is connected with the rotating end of the motor, outside the rotating rod is provided with a driving gear, outside the driving disk is provided with the gear disk, on the fixing plate is provided with a mounting rod, on the mounting rod is provided with a transmission gear meshing with the driving gear, and both of the two transmission gears mesh with the gear disk.

3. The screening device for low-temperature grinding of grains according to claim 1, characterized in that, On the top of the frame is provided with an air outlet plate, on the air outlet plate are provided with a plurality of air outlet openings, inside the frame is provided with a blower, and outside the frame is provided with a control panel.

4. The screening device for low-temperature grinding of grains according to claim 1, characterized in that, Outside the movable frame is provided with a rotating shaft, the movable frame is rotatably arranged inside the support frame through the rotating shaft, on the turntable is provided with a groove, inside the groove is provided with a telescopic spring, and one end of the telescopic spring is connected with the pressing rod.

5. The screening device for low-temperature grinding of grains according to claim 4, characterized in that, Inside the movable frame is provided with a guiding groove, inside the guiding groove is provided with a movable block, between the two movable blocks is provided with a turning rod, inside the movable frame is provided with a baffle plate, and on the baffle plate is provided with a fixing pin.

6. The screening device for low-temperature grinding of grains according to claim 5, characterized in that, On the top of the frame is provided with a fixing frame, on the fixing frame is provided with a feed hopper, and the bottom end of the feed hopper penetrates into the support cylinder.

7. A method of using the screening device for low-temperature grinding of grains according to any one of claims 1-6, characterized in that, Including the following steps: 1) Move the screening device to the working area, check whether the screen is damaged or blocked, and install multiple groups of screens into the movable frame in sequence; 2) Introduce the low-temperature medium into the heat exchange layer inside the support cylinder, start the motor inside the frame, the motor drives the rotating rod and the driving disc to rotate, the driving disc drives the support frame and the support frame to move, and the support frame drives the movable frame and the sieve inside to rotate up and down; 3) Slowly pour the grains into the inside of the feed hopper. The rotating rod conveys the grains upward by driving the spiral blades to rotate. Multiple sets of sieves screen the grains. After the screening is completed, close the feed port and the motor, and take out the grains inside different movable frames in sequence to complete the screening of the grains.

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