Grain screening and impurity removing device for grain processing

Abstract

The invention relates to the field of grain impurity removal, in particular to a grain screening and impurity removing device for grain processing, which comprises a support frame, a material guiding and screening table detachably mounted on the outer side surface of the top of the support frame, a dust collecting box detachably mounted on the inner side wall surface of the support frame, and a fixed block fixedly mounted on the outer side surface of the support frame, the supporting rod is detachably and fixedly installed on the edge of one side of the material guiding and screening table, and the differentiating and collecting box is movably connected to the edge of the bottom of the tail end of the material guiding and screening table in a lap joint mode. Grain bags are poured into a horn funnel at a time in cooperation with workers, meanwhile, grains are stacked and concentrated in cooperation with a uniform falling sieve plate on the inner side wall face of the horn funnel, due to the fact that the amount of the grains poured at a time is large, the grains can be concentrated on the top surface of the uniform falling sieve plate and cannot effectively fall, and at the moment, a pair of heightening wheels is rotated in cooperation with a first motor; and the heightening wheel is connected with the output end of the motor I in a staggered manner, so that the heightening wheel rotates again.

Description

Technical Field

[0001] The invention belongs to the technical field of grain impurity removal, in particular to a grain screening and impurity removal device for grain processing. Background Art

[0002] Grain processing refers to the act of converting raw grains into semi-finished grains or finished grains, or vice versa. During the harvesting process, grain grains are inevitably mixed with various impurities such as dust, broken cobs, leaves, chaff, shriveled grains, rotten seeds, and stones. Grain storage requires the removal of these impurities to leave the required qualified grain, so the grain needs to be cleaned.

[0003] A patent with the announcement number CN 214974786 U discloses a grain screening and impurity removal device for grain processing, including a box, an electric push rod, a material receiving box, an annular guide seat, a guide hopper, a screening hopper, a screen, a stirring blade, a filter, a fixed pulley, a water inlet pipe, a winding wheel, a double-axis motor, a threaded rod, a driven gear, a driving gear, a first stepper motor, a feeding bin, a pull rope, a square rotating tube, a square rotating shaft, a driven pulley, a driving pulley, a second stepper motor, a drain pipe and a square block. The utility model can better screen empty grains, thereby greatly improving the screening efficiency of grains, and also greatly improving the quality of grains after screening; in this way, the screened grains can be better unloaded, avoiding the operation of the later staff, thereby greatly reducing the work intensity of the staff, and also greatly improving the practicality.

[0004] In the current prior art, when the existing grain screening machine screens the impurity particles and dust inside the grain, the grain is directly poured into the screening machine. Since the excessive amount of grain poured in at one time will cause the grain to form a pile flow inside the screening machine, this will result in the dust and impurities inside the grain pile being unable to be effectively cleaned, and the screening of the grain will also be uneven when it is screened again. Manually pouring grain cannot evenly fill the grain import capacity, and the employees are physically unable to hold the grain bags for a long time.

[0005] To this end, the present invention provides a grain screening and impurity removal device for grain processing. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a grain screening and impurity removal device for grain processing described in the present invention comprises a support frame and a material guide screening platform detachably mounted on the outer surface of the top of the support frame, a dust collecting box detachably mounted on the inner wall of the support frame, a fixed block fixedly mounted on the outer surface of the support frame, a support rod detachably fixedly mounted on the edge position of one side of the material guide screening platform, and a differentiation collection box movably overlapped on the bottom edge position of the tail end of the material guide screening platform, one end of the support rod is fixedly connected with a guide channel arranged on the outer edge position of the top of the material guide screening platform, a trumpet funnel is fixedly connected on the top surface of the guide channel, a motor 1 is symmetrically fixedly connected on the top surface of the trumpet funnel and located at the edge positions on both sides, a pad wheel is fixedly connected on the output end of the motor 1, a pulling limit plate slidably overlapped on the inner wall of the trumpet funnel is movably sleeved on the outer surface of the pad wheel, and a uniform drop screen plate movably overlapped on the inner wall of the trumpet funnel is fixedly connected on the bottom surface of the pulling limit plate.

[0008] Preferably, a second motor is arranged on the outer surface of the fixed block, and a transmission belt is movably sleeved on the outer surface of the output end of the second motor.

[0009] Preferably, a transmission rod is movably sleeved on the outer surface of the material guiding and screening platform, and both ends of the transmission rod extend to the outer surface of the material guiding and screening platform respectively.

[0010] Preferably, the inner wall surface of the transmission crawler is movably sleeved on the transmission rod extending to the outer surface of the material guiding and screening platform, and the outer surface of the transmission rod is provided with lifting pad wheels at the edge positions on both sides.

[0011] Preferably, a differentiation screening plate is movably sleeved on the inner wall of the material guiding and screening platform, a limiting groove movably sleeved on the outer surface of the differentiation screening plate is provided on the inner wall of the material guiding and screening platform, and a differentiation screen is provided on the inner wall of the bottom of the differentiation screening plate.

[0012] Preferably, a dust guide cavity located at the top edge of the differentiation screen is provided on the top inner wall surface of the differentiation screening plate, and a breathable net is provided on one side edge of the dust guide cavity.

[0013] Preferably, an air suction strip is provided on the top surface of the differentiation screening plate, and an opening is provided on the bottom edge of the differentiation screening plate.

[0014] Preferably, two groups of air ducts are fixedly installed on the outer surface of the dust collecting box, one end of each group of air ducts is fixedly connected to the top surface of the air suction strip, and one end of the other group of air ducts is fixedly connected to a particle collection chamber covering the outer edge of the opening.

[0015] Preferably, a filter screen arranged on the blower input end is fixedly mounted on the inner wall surface of the dust collecting box, and a filter plate is arranged on the inner wall surface of the particle collecting chamber.

[0016] Preferably, a motor 1 is fixedly connected to the inner wall of the horn funnel, one end of the motor 1 extends to the inner wall of the guide channel, and a raising wheel is provided between the bottom surface of the motor 1 and the guide channel, and a limiting ring that movably fits on the two side surfaces of the pulling limiting plate is fixedly connected to the output end surface of the motor 1.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The grain screening and impurity removing device for grain processing of the present invention cooperates with employees to pour grain bags into the interior of the trumpet funnel at one time, and cooperates with the uniform falling sieve plate on the inner wall of the trumpet funnel to pile up and concentrate the grains. Since the amount poured in at one time is relatively large, the grains will be concentrated on the top surface of the uniform falling sieve plate and cannot fall effectively. At this time, the pair of raising wheels of the motor are rotated, and the staggered connection between the raising wheels and an output end of the motor is utilized so that when the raising wheels rotate again, the protruding position will cause the surface of the pulling limit plate to fluctuate up and down, and in the process of the uniform falling sieve plate fluctuating up and down, the grain inside the uniform falling sieve plate will generate a drop vibration, and the grains accumulated inside the uniform falling sieve plate will be scattered during the vibration, so that the uniform falling sieve plate can be used to evenly sprinkle the grains, and at the same time, the mesh holes on the surface of the uniform falling sieve plate can separate the accumulated grains, and can also preliminarily separate the dust and impurity particles on the surface of the grains;

[0019] 2. In the grain screening and impurity removal device for grain processing described in the present invention, the fallen grains will hit the surface of motor one and slide inside the guide channel, and guide the grains into the interior of the differentiation screening plate. At this time, the transmission track of motor two on the outer surface of the fixed block rotates, thereby driving the transmission rod on the outer surface of the guide screening platform to rotate. When the transmission rod rotates again, it will drive the lifting pad wheel on the outer surface of the transmission rod to lift the differentiation screening plate up and down. The vibration generated during each lifting and falling will cause the grains sliding inside the differentiation screen to vibrate for the second time, and then some smaller grains and dust on the surface of the grains will be differentiated and shaken off under the vibration of the differentiation screening plate, thereby utilizing the double-layer differentiation screen to achieve the effect of differentiating the grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a cutaway stereogram of the material guiding and screening table in the present invention;

[0023] Figure 3 It is a three-dimensional diagram of the lifting cushion wheel in the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the multi-angle swing of the lifting pad wheel in the present invention;

[0025] Figure 5 is a cutaway stereoscopic view of the horn funnel in the present invention;

[0026] Figure 6 It is a three-dimensional diagram of the evenly falling screen plate in the present invention;

[0027] Figure 7 is a cutaway stereogram of the differentiation screen of the present invention;

[0028] Figure 8 It is a cutaway perspective view of the dust collecting box in the present invention.

[0029] In the figure: 11, support frame; 12, material guiding and screening table; 121, limiting groove; 122, differentiation screening plate; 123, differentiation screen; 124, breathable net; 125, dust guide chamber; 126, air suction strip; 127, opening; 13, dust collecting box; 131, filter screen; 132, blower; 133, air guide pipe; 134, particle collecting chamber; 135, filter plate; 14, differentiation collecting box; 15, support rod; 151, guide channel; 152, trumpet funnel; 153, motor one; 154, pad wheel; 155, limiting ring; 156, pull limiting plate; 157, evenly falling screen plate; 16, fixing block; 161, motor two; 162, drive track; 163, drive rod; 164, lifting pad wheel. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figure 1-Figure 3 , Figure 5-Figure 6 and Figure 8As shown, a grain screening and impurity removal device for grain processing according to an embodiment of the present invention comprises a support frame 11 and a material guiding and screening table 12 detachably mounted on the outer surface of the top of the support frame 11, a dust collecting box 13 detachably mounted on the inner wall of the support frame 11, a fixing block 16 fixedly mounted on the outer surface of the support frame 11, a support rod 15 detachably fixedly mounted on the edge of one side of the material guiding and screening table 12, a differentiation collecting box 14 movably overlapped on the bottom edge of the tail end of the material guiding and screening table 12, and a dust collecting box 13 disposed on the material guiding and screening table 12 is fixedly connected to one end of the support rod 15. A guide channel 151 is located at the outer edge of the top, and a trumpet funnel 152 is fixedly connected to the top surface of the guide channel 151. A motor 153 is symmetrically fixedly connected to the top surface of the trumpet funnel 152 and located at the edge positions on both sides. A raising wheel 154 is fixedly connected to the output end of the motor 153. A pulling limit plate 156 that is slidably overlapped on the inner wall of the trumpet funnel 152 is movably sleeved on the outer surface of the raising wheel 154. A uniform falling screen plate 157 that is movably overlapped on the inner wall of the trumpet funnel 152 is fixedly connected to the bottom surface of the pulling limit plate 156.

[0032] Cooperate with employees to pour the grain bags into the interior of the trumpet funnel 152 at one time, and cooperate with the uniform falling sieve plate 157 on the inner wall of the trumpet funnel 152 to pile up and concentrate the grain. Since the amount poured in at one time is relatively large, the grain will be concentrated on the top surface of the uniform falling sieve plate 157 and cannot fall effectively. At this time, cooperate with motor 153 to rotate the pad wheel 154, and utilize the staggered connection between the pad wheel 154 and the output end of motor 153 so that when the pad wheel 154 rotates again, the protruding position will cause the surface of the pulling limit plate 156 to fluctuate up and down, and in the process of the uniform falling sieve plate 157 fluctuating up and down, the grain inside the uniform falling sieve plate 157 will produce a drop vibration, and the grain accumulated inside the uniform falling sieve plate 157 will be scattered during the vibration, so that the uniform falling sieve plate 157 can be used to evenly sprinkle the grain. At the same time, the mesh on the surface of the uniform falling sieve plate 157 can separate the accumulated grain, and can also preliminarily separate the dust and impurity particles on the surface of the grain.

[0033] like Figures 1 to 6As shown, a motor 2 161 is provided on the outer surface of the fixed block 16, and a transmission track 162 is movably sleeved on the outer surface of the output end of the motor 2 161, and a transmission rod 163 is movably sleeved on the outer surface of the material guiding and screening platform 12, and both ends of the transmission rod 163 extend to the outer surface of the material guiding and screening platform 12 respectively, and the inner wall of the transmission track 162 is movably sleeved on the transmission rod 163 and extends to the outer surface of the material guiding and screening platform 12 for convenient position, and lifting cushion wheels 164 are provided on the outer surface of the transmission rod 163 and at the edge positions on both sides, and a motor 153 is fixedly connected to the inner wall surface of the trumpet funnel 152, and one end of the motor 153 extends to the inner wall surface of the guide channel 151, and a cushion wheel 154 is provided between the bottom surface of the motor 153 and the guide channel 151, and a limiting ring 155 movably fitted on the two side surfaces of the pulling limiting plate 156 is fixedly connected to the output end surface of the motor 153.

[0034] The fallen grains will hit the surface of motor 153 and slide inside the guide channel 151, and guide the grains into the inside of the differentiation screening plate 122. At this time, motor 2 161 on the outer surface of the fixed block 16 rotates the transmission track 162, thereby driving the transmission rod 163 on the outer surface of the guide screening platform 12 to rotate. When the transmission rod 163 rotates again, it will drive the lifting pad wheel 164 on the outer surface of the transmission rod 163 to lift the differentiation screening plate 122 up and down. The vibration generated during each lifting and falling will cause the grains sliding inside the differentiation screen 123 to vibrate for the second time, and then some smaller grains and dust on the surface of the grains will be differentiated and shaken off under the vibration of the differentiation screening plate 122, thereby utilizing the double-layer differentiation screen 123 to achieve the effect of differentiating the grains.

[0035] like Figure 1-Figure 2 , Figure 7-Figure 8As shown, a differentiation screening plate 122 is movably sleeved on the inner wall of the material guiding and screening platform 12, a limiting groove 121 movably sleeved on the outer surface of the differentiation screening plate 122 is provided on the inner wall of the material guiding and screening platform 12, a differentiation screen 123 is provided on the bottom inner wall of the differentiation screening plate 122, a dust guide cavity 125 located at the top edge of the differentiation screen 123 is provided on the top inner wall of the differentiation screening plate 122, a breathable net 124 is provided on one side edge of the dust guide cavity 125, and a suction filter 126 is provided on the top surface of the differentiation screening plate 122. The wind strip 126 and the differentiation screening plate 122 are provided with an opening 127 at the bottom edge position, and two groups of air guide pipes 133 are fixedly installed on the outer surface of the dust box 13, one end of one group of air guide pipes 133 is fixedly connected to the top surface of the air suction strip 126, and one end of the other group of air guide pipes 133 is fixedly connected to a particle collecting chamber 134 covering the outer edge position of the opening 127, a filter screen 131 arranged on the input end of the blower 132 is fixedly installed on the inner wall surface of the dust box 13, and a filter plate 135 is arranged on the inner wall surface of the particle collecting chamber 134.

[0036] As the differentiation screen 123 continuously slides and drops the grain, it will enter into different differentiation collection boxes 14. At this time, the blower 132 inside the dust box 13 cooperates to absorb the gas to the air duct 133, and the suction strip 126 on one end of the air duct 133 will absorb the internal gas of the dust guide cavity 125. As the air inside the differentiation screen 123 is continuously absorbed, some lighter dust impurities floating in the internal space of the differentiation screen 123 will enter into the dust guide cavity 125 driven by the airflow, and at this time, the air permeable net 124 will isolate the grain inside the differentiation screen 123.

[0037] Working principle: cooperate with employees to pour the grain bag into the interior of the trumpet funnel 152 at one time, and cooperate with the uniform falling sieve plate 157 on the inner wall of the trumpet funnel 152 to pile up and concentrate the grain. Since the amount poured in at one time is relatively large, the grain will be concentrated on the top surface of the uniform falling sieve plate 157 and cannot fall effectively. At this time, cooperate with the motor 153 to rotate the pad wheel 154, and utilize the staggered connection between the pad wheel 154 and the output end of the motor 153 so that when the pad wheel 154 rotates again, the protruding position will cause the surface of the pulling limit plate 156 to fluctuate up and down, and the uniform falling sieve plate 157 will fluctuate up and down again. The grain inside the uniform falling sieve plate 157 will produce a drop vibration, and the grain accumulated inside the uniform falling sieve plate 157 will be scattered during the vibration, so that the uniform falling sieve plate 157 can be used to evenly sprinkle the grain. At the same time, the mesh holes on the surface of the uniform falling sieve plate 157 can separate the accumulated grain, and can also preliminarily separate the dust and impurity particles on the surface of the grain.

[0038] The fallen grains will hit the surface of the motor 153 and slide inside the guide channel 151, and guide the grains into the differentiation screening plate 122. At this time, the motor 2 161 on the outer surface of the fixed block 16 rotates the transmission track 162, thereby driving the transmission rod 163 on the outer surface of the guide screening platform 12 to rotate. When the transmission rod 163 rotates again, it will drive the lifting pad wheel 164 on the outer surface of the transmission rod 163 to lift the differentiation screening plate 122 up and down. The vibration generated during each lifting and falling will cause the grains sliding inside the differentiation screen 123 to vibrate twice, and then some smaller grains and dust on the surface of the grains will be differentiated and shaken off under the vibration of the differentiation screening plate 122, and the double-layer differentiation screen 123 will be used to differentiate the grains.

[0039] As the differentiation screen 123 continuously slides and drops the grain, it will enter the interior of different differentiation collection boxes 14. At this time, the blower 132 in the dust collection box 13 cooperates to absorb the gas from the air guide pipe 133, and the air suction strip 126 at one end of the air guide pipe 133 absorbs the internal gas of the dust guide cavity 125. As the air inside the differentiation screen 123 is continuously absorbed, some lighter dust impurities floating in the internal space of the differentiation screen 123 will enter the dust guide cavity 125 driven by the air flow, and the air permeable net 124 at this time will isolate the grain inside the differentiation screen 123, so as to prevent the grain from floating to the air outlet during the vibration process, causing the grain to be absorbed into the air guide pipe and cause blockage.

[0040] The airflow carrying dust impurities enters the dust box 13 through the air duct 133, and cooperates with the filter 131 inside the dust box 13 to filter the dust impurities in the air, and some fine particle impurities in the grain will pass through the differentiation screen 123 due to gravity and enter the inside of the material guiding and screening platform 12. The air duct 133 absorbs the gas inside the particle collecting chamber 134, and guides the fine particle impurities inside the material guiding and screening platform 12 through the opening 127 into the particle collecting chamber 134, and cooperates with the filter plate 135 to differentiate and filter out the fine particle impurities and airflow.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grain screening and impurity removal device for grain processing, comprising a support frame (11) and a material guiding and screening table (12) detachably mounted on the outer surface of the top of the support frame (11), a dust collecting box (13) detachably mounted on the inner wall of the support frame (11), a fixing block (16) fixedly mounted on the outer surface of the support frame (11), a support rod (15) detachably fixedly mounted on the edge of one side of the material guiding and screening table (12), and a differentiation collecting box (14) movably overlapped on the bottom edge of the tail end of the material guiding and screening table (12), characterized in that: A guide channel (151) arranged on the outer edge of the top of the material guiding and screening platform (12) is fixedly connected to one end of the support rod (15), a trumpet funnel (152) is fixedly connected to the top surface of the guide channel (151), a motor 1 (153) is symmetrically fixedly connected to the top surface of the trumpet funnel (152) and located at the edge positions on both sides, a raising wheel (154) is fixedly connected to the output end of the motor 1 (153), a pulling limit plate (156) slidably overlapped on the inner wall of the trumpet funnel (152) is movably sleeved on the outer surface of the raising wheel (154), and a uniformly falling screen plate (157) movably overlapped on the inner wall of the trumpet funnel (152) is fixedly connected to the bottom surface of the pulling limit plate (156).

2. A grain screening and impurity removal device for grain processing according to claim 1, characterized in that: A second motor (161) is arranged on the outer surface of the fixed block (16), and a transmission crawler belt (162) is movably sleeved on the outer surface of the output end of the second motor (161).

3. A grain screening and impurity removal device for grain processing according to claim 2, characterized in that: A transmission rod (163) is movably sleeved on the outer surface of the material guiding and screening platform (12), and both ends of the transmission rod (163) extend to the outer surface of the material guiding and screening platform (12) respectively.

4. The grain screening and impurity removal device for grain processing according to claim 3, characterized in that: The inner wall surface of the transmission crawler (162) is movably sleeved on the transmission rod (163) extending to the outer surface of the material guiding and screening platform (12) at a convenient position, and the outer surface of the transmission rod (163) is provided with lifting pad wheels (164) at the edge positions on both sides.

5. The grain screening and impurity removal device for grain processing according to claim 4, characterized in that: A differentiation screening plate (122) is movably sleeved on the inner wall surface of the material guiding and screening platform (12), a limiting groove (121) movably sleeved on the outer surface of the differentiation screening plate (122) is provided on the inner wall surface of the material guiding and screening platform (12), and a differentiation screen (123) is provided on the inner wall surface of the bottom of the differentiation screening plate (122).

6. A grain screening and impurity removal device for grain processing according to claim 5, characterized in that: A dust guide cavity (125) is provided on the top inner wall surface of the differentiation screening plate (122) and is located at the top edge of the differentiation screen (123); and a breathable net (124) is provided on one side edge of the dust guide cavity (125).

7. A grain screening and impurity removal device for grain processing according to claim 6, characterized in that: An air suction strip (126) is provided on the top surface of the differentiation screening plate (122), and an opening (127) is provided on the bottom edge of the differentiation screening plate (122).

8. The grain screening and impurity removal device for grain processing according to claim 1, characterized in that: Two groups of air guide tubes (133) are fixedly mounted on the outer surface of the dust collecting box (13), one end of one group of air guide tubes (133) is fixedly connected to the top surface of the air suction strip (126), and one end of the other group of air guide tubes (133) is fixedly connected to a particle collection chamber (134) covering the outer edge of the opening (127).

9. The grain screening and impurity removal device for grain processing according to claim 8, characterized in that: A filter screen (131) arranged on the input end of the blower (132) is fixedly mounted on the inner wall surface of the dust collecting box (13), and a filter plate (135) is arranged on the inner wall surface of the particle collecting chamber (134).

10. The grain screening and impurity removal device for grain processing according to claim 1, characterized in that: A motor 1 (153) is fixedly connected to the inner wall surface of the horn funnel (152), one end of the motor 1 (153) extends to the inner wall surface of the guide channel (151), and a raising wheel (154) is provided between the bottom surface of the motor 1 (153) and the guide channel (151), and a limiting ring (155) that is movably fitted on the two side surfaces of the pull limiting plate (156) is fixedly connected to the output end surface of the motor 1 (153).

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