Grain pretreatment equipment

Abstract

The invention discloses grain pretreatment equipment, and relates to the technical field of seed soaking, the grain pretreatment equipment comprises a seed soaking liquid mechanism, and also comprises an intermittent seed soaking mechanism connected with the seed soaking liquid mechanism; by arranging the in-bag seed inside and outside switching mechanism, position interchange of seeds on the inner layer and the outer layer is achieved by means of the characteristics of the seeds and the breathable bag, the contact uniformity of the seeds on each layer of the breathable bag and liquid medicine is guaranteed, and the problem that the seeds inside are subjected to oxygen-deficient fermentation due to unsmooth ventilation is also avoided; a seed and liquid medicine uniform contact mechanism is installed, so that the breathable bag and the seeds in the breathable bag shake, the shake can effectively prevent the seeds from being attached to each other in water, and generated gaps are more beneficial for water flow to pass through; meanwhile, liquid medicine is extracted to impact the seeds, the liquid medicine can penetrate through a seed pile more easily in combination with gaps generated by shaking, and the contact uniformity of the seeds and the liquid medicine and the liquidity of the liquid medicine are ensured; due to multi-directional spraying, the capability of the pesticide liquid penetrating through a seed pile is further enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seed soaking, and in particular to a grain pretreatment device. BACKGROUND

[0002] Grain seed soaking is a key agricultural measure to activate seed physiological activity through water, and the main purposes include: 1) to make dry seeds fully absorb water and swell, so that the water content reaches about 40% of their own weight, and to soften the seed coat to accelerate material exchange; 2) to activate the hydrolytic enzyme system inside the seed to efficiently decompose stored nutrients and provide sufficient energy for embryo germination; 3) to significantly enhance respiration and increase the concentration of germination hormones, effectively breaking seed dormancy. This technology can greatly improve the uniformity of germination, for example, rice seeds treated with 12-48 hours of seed soaking (time length adjusted according to water temperature), the germination rate can be increased by 30%-40%. In current seed soaking operation, when the seeds are loaded into a breathable bag and soaked in the liquid medicine, there is a problem of uneven contact of the liquid medicine between the inner and outer layers of the seeds: the outer layer of seeds is prone to embryo bud necrosis (manifested as gray husk and black embryo bud) due to excessive contact with the liquid medicine, while the inner layer of seeds is prone to seedling disease due to insufficient penetration of the liquid medicine. This double impact can cause uneven emergence in the field, and the poor ventilation of the seeds inside and outside the breathable bag can cause seed anaerobic fermentation. SUMMARY

[0003] The present application provides a grain pretreatment device to solve the above problems in the prior art.

[0004] To achieve the above purpose, the present application adopts the following technical scheme: A grain pretreatment device, comprising a seed soaking liquid mechanism, further comprising: An intermittent seed soaking mechanism connected with the seed soaking liquid mechanism, comprising a hydraulic cylinder one, the telescopic end of the hydraulic cylinder one is fixed with a support frame, the bottom of the support frame is fixed with a plurality of hooks; A bag seed inside and outside switching mechanism connected with the seed soaking liquid mechanism, comprising two mounting plates, the top of the mounting plate is fixed with a conical center pushing block, and a seed limiting assembly is installed on the mounting plate; A seed and liquid medicine uniform contact mechanism connected with the seed soaking liquid mechanism, comprising a rotary liquid spraying mechanism and a gap generating mechanism; The rotary liquid spraying mechanism comprises an arc-shaped plate, and a plurality of porous nozzles are fixed on the arc-shaped plate; The gap generating mechanism comprises a reciprocating screw, a moving plate is sleeved on the outer thread of the reciprocating screw, two shafts one are rotatably connected inside the moving plate, and a material supporting plate is fixed on the top end of the shaft one.

[0005] Further, the seed soaking liquid mechanism comprises a control box, a seed soaking cylinder is fixed to the top of the control box, a medicine liquid is arranged in the seed soaking cylinder, and a mounting frame is fixed to the top of the seed soaking cylinder.

[0006] Further, the intermittent seed soaking mechanism further comprises a motor one fixed to the top of the mounting frame, a gear one is fixed to the output end of the motor one, a gear two is engaged with one side of the gear one, the gear two is fixed to the outside of a hydraulic cylinder one, and the hydraulic cylinder one is rotationally connected to the inside of the mounting frame. The hook is provided with a breathable bag.

[0007] Further, the seed limiting assembly comprises a plurality of hydraulic cylinder twos fixed to the mounting plate, and a telescopic assembly is fixed to the telescopic end of the hydraulic cylinder two. The telescopic assembly comprises a shell, a plurality of springs one are fixed to the inside of the shell, and an inner plate is fixed to the top end of the plurality of springs one. An arc-shaped clamping plate is fixed to the top of the inner plate, and the inner arc surfaces of the plurality of arc-shaped clamping plates are opposite.

[0008] Further, the rotating liquid spraying mechanism further comprises an annular plate fixedly connected with the liquid inlet pipes of the plurality of porous spray heads, an annular shell is rotationally connected to the outside of the annular plate, the liquid inlet pipes of the porous spray heads are in communication with the inside of the annular shell, a liquid supply pipe is in communication with one side of the annular shell, a liquid pumping pump is in communication with the liquid supply pipe, and the liquid pumping pump is fixed to the inner wall of the seed soaking cylinder. A plurality of sliding plates are fixed to the outer wall of the annular shell, a guide rod two is sleeved in the inside of the sliding plate, the guide rod two is fixed to the bottom inner wall of the seed soaking cylinder, a spring two is sleeved to the outside of the guide rod two, the top end of the spring two is fixedly connected with the sliding plate, and the bottom end of the spring two is fixedly connected with the bottom inner wall of the seed soaking cylinder.

[0009] Further, the gap generating mechanism further comprises a gear three fixed to the bottom end of the reciprocating screw, the reciprocating screw is rotationally connected to the bottom of the seed soaking cylinder, a plurality of guide rods one are fixed to the bottom inner wall of the seed soaking cylinder, and the guide rods one are sleeved in the inside of the moving plate. A square hole is arranged in the bottom of the rotating shaft one, a square plate is sleeved in the inside of the square hole, a rotating shaft two is fixed to the bottom of the square plate, the rotating shaft two is rotationally connected to the bottom of the seed soaking cylinder, a gear four is fixed to the bottom end of the rotating shaft two, a belt transmission assembly is arranged on the outside of the two rotating shaft twos, the belt transmission assembly, the gear three and the gear four are sleeved in the inside of the control box, a motor two is fixed to the bottom outer wall of the seed soaking cylinder, a gear five is fixed to the output end of the motor two, and the gear five is engaged with the gear three and the gear four. The arc-shaped plate is fixed to the top of the material supporting plate.

[0010] Further, one side of the mounting frame is fixedly provided with a controller electrically connected with the motor, the hydraulic cylinder, the second hydraulic cylinder and the second motor.

[0011] Compared with the prior art, the present application has the following advantages: 1. The intermittent seed soaking mechanism is used to break the internal and external water balance state of the seeds, promote the oxygen exchange efficiency, effectively prevent the seed anaerobic fermentation, avoid the drug solution precipitation, and ensure the consistency of the drug solution concentration contacted by each layer of seeds in the air-permeable bag.

[0012] 2. The internal and external switching mechanism of the seeds in the bag is used to realize the position exchange of the internal and external layers of seeds by the characteristics of the seeds and the air-permeable bag, which not only ensures the uniformity of the contact of the seeds in each layer of the air-permeable bag with the drug solution, but also avoids the problem of anaerobic fermentation of the internal seeds due to poor ventilation. 3. The seed and drug solution uniform contact mechanism is installed to make the air-permeable bag and the seeds in the air-permeable bag produce shaking, which can effectively prevent the seeds from adhering to each other in water, and the generated gap is more conducive to water flow; at the same time, the drug solution is extracted to impact the seeds, and the gap generated by the shaking makes the drug solution more easily penetrate the seed pile, ensuring the uniformity of the contact of the seeds with the drug solution and the flowability of the drug solution; in addition, the porous spray head is driven to rotate and spray, making it move in a circular motion around the air-permeable bag, and the multi-directional spraying further enhances the ability of the drug solution to penetrate the seed pile, thereby ensuring the uniform contact of the drug solution with the seeds. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A structure schematic view of a grain pretreatment equipment is provided for the present application.

[0014] Figure 2 A seed soaking cylinder cross-sectional structure schematic view of a grain pretreatment equipment is provided for the present application.

[0015] Figure 3 A seed and drug solution uniform contact mechanism structure schematic view of a grain pretreatment equipment is provided for the present application.

[0016] Figure 4 A seed and drug solution uniform contact mechanism structure schematic view of a grain pretreatment equipment is provided for the present application.

[0017] Figure 5 A seed and drug solution uniform contact mechanism structure schematic view of a grain pretreatment equipment is provided for the present application.

[0018] Figure 6A first view structure diagram of a porous nozzle of a grain pretreatment device according to the present application.

[0019] Figure 7 A second view structure diagram of a porous nozzle of a grain pretreatment device according to the present application.

[0020] Figure 8 A contact change structure diagram of a breathable bag and a conical center pushing block of a grain pretreatment device according to the present application.

[0021] In the figure: 1, seed soaking liquid mechanism; 11, control box; 12, seed soaking cylinder; 13, mounting frame; 2, intermittent seed soaking mechanism; 21, hydraulic cylinder one; 22, support frame; 23, motor one; 24, gear one; 25, gear two; 26, hook; 27, breathable bag; 3, seed inside and outside switching mechanism in the bag; 31, mounting plate; 32, hydraulic cylinder two; 33, shell; 34, spring one; 35, inner plate; 36, arc-shaped clamping plate; 37, conical center pushing block; 4, seed and chemical liquid uniform contact mechanism; 41, reciprocating screw; 42, gear three; 43, moving plate; 44, guide rod one; 45, rotating shaft two; 46, belt transmission assembly; 47, square plate; 48, rotating shaft one; 49, square hole; 410, material supporting plate; 411, arc-shaped plate; 412, porous nozzle; 413, annular shell; 414, liquid supply pipe; 415, sliding plate; 416, guide rod two; 417, spring two; 418, annular plate; 419, gear four; 420, motor two; 421, gear five; 422, liquid pump. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0024] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply relative importance or a number of the indicated technical features. Thus, features with "first", "second", "third" designations can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise expressly and specifically defined. In addition, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiment: Reference Figures 1-8 A grain pretreatment device, comprising a seed soaking liquid mechanism 1, further comprising: An intermittent seed soaking mechanism 2 connected with the seed soaking liquid mechanism 1, comprising a hydraulic cylinder one 21, the telescopic end of the hydraulic cylinder one 21 is fixed with a support frame 22, the bottom of the support frame 22 is fixed with a plurality of hooks 26; A seed inside-out switching mechanism in the bag 3 connected with the seed soaking liquid mechanism 1, comprising two mounting plates 31, the top of the mounting plate 31 is fixed with a conical center pushing block 37, the mounting plate 31 is installed with a seed limiting assembly; A seed and liquid medicine uniform contact mechanism 4 connected with the seed soaking liquid mechanism 1, comprising a rotary liquid spraying mechanism and a gap generating mechanism; The rotary liquid spraying mechanism comprises an arc-shaped plate 411, a plurality of porous nozzles 412 are fixed on the arc-shaped plate 411; The gap generating mechanism comprises a reciprocating screw 41, the outer thread of the reciprocating screw 41 is sleeved with a moving plate 43, the inside of the moving plate 43 is rotatably connected with two shafts one 48, the top end of the shaft one 48 is fixed with a material supporting plate 410.

[0026] The seed soaking liquid mechanism 1 comprises a control box 11, the top of the control box 11 is fixed with a seed soaking cylinder 12, the inside of the seed soaking cylinder 12 is provided with liquid medicine, the top of the seed soaking cylinder 12 is fixed with a mounting frame 13.

[0027] The intermittent seed soaking mechanism 2 further comprises a motor one 23 fixed on the top of the mounting frame 13, the output end of the motor one 23 is fixed with a gear one 24, one side of the gear one 24 is engaged with a gear two 25, the gear two 25 is fixed on the outside of the hydraulic cylinder one 21, the hydraulic cylinder one 21 is rotatably connected in the inside of the mounting frame 13; The hook 26 is installed with a breathable bag 27.

[0028] The seed limiting assembly comprises a plurality of hydraulic cylinders 32 fixed on the mounting plate 31, and the telescopic ends of the hydraulic cylinders 32 are fixed with telescopic assemblies; The telescopic assembly comprises a shell 33, the inside of the shell 33 is fixed with a plurality of springs 34, and the top ends of the plurality of springs 34 are fixed with an inner plate 35; The top of the inner plate 35 is fixed with a plurality of arc-shaped clamping plates 36, and the inner arc surfaces of the plurality of arc-shaped clamping plates 36 are opposite.

[0029] The rotating liquid spraying mechanism further comprises an annular plate 418 fixedly connected with the liquid inlet pipes of the plurality of porous spray heads 412, the outer portion of the annular plate 418 is rotatably connected with an annular shell 413, the liquid inlet pipes of the porous spray heads 412 are in communication with the inside of the annular shell 413, one side of the annular shell 413 is communicated with a liquid supply pipe 414, the liquid supply pipe 414 is communicated with a liquid pumping pump 422, and the liquid pumping pump 422 is fixed on the inner wall of the seed soaking cylinder 12. The outer wall of the annular shell 413 is fixed with a plurality of sliding plates 415, the inside of the sliding plates 415 is sleeved with a guide rod 416, the guide rod 416 is fixed on the bottom inner wall of the seed soaking cylinder 12, the outside of the guide rod 416 is sleeved with a spring 417, the top end of the spring 417 is fixedly connected with the sliding plate 415, and the bottom end of the spring 417 is fixedly connected with the bottom inner wall of the seed soaking cylinder 12.

[0030] The gap generating mechanism further comprises a gear 42 fixed on the bottom end of the reciprocating screw 41, the reciprocating screw 41 penetrates through and is rotatably connected with the bottom of the seed soaking cylinder 12, the bottom inner wall of the seed soaking cylinder 12 is fixed with a plurality of guide rods 44, and the guide rods 44 are sleeved in the inside of the moving plate 43. The bottom of the rotating shaft 48 is provided with a square hole 49, the inside of the square hole 49 is sleeved with a square plate 47, the bottom of the square plate 47 is fixed with a rotating shaft 45, the rotating shaft 45 penetrates through and is rotatably connected with the bottom of the seed soaking cylinder 12, the bottom end of the rotating shaft 45 is fixed with a gear 419, the outer portions of the two rotating shafts 45 are provided with a belt driving assembly 46, the belt driving assembly 46, the gear 42 and the gear 419 are sleeved in the inside of the control box 11, the bottom outer wall of the seed soaking cylinder 12 is fixed with a motor 420, the output end of the motor 420 is fixed with a gear 421, and the gear 421 is engaged with the gear 42 and the gear 419. The arc-shaped plate 411 is fixed on the top of the material supporting plate 410.

[0031] One side of the mounting frame 13 is fixed with a controller, and the controller is electrically connected with the motor 23, the hydraulic cylinder 21, the hydraulic cylinder 32 and the motor 420 respectively.

[0032] Working principle: The controller controls motor 1 (23) to rotate gear 1 (24). Gear 1 (24) in turn drives hydraulic cylinder 1 (21) and support frame 22 via gear 2 (25). Support frame 22 rotates breathable bags 27 containing seeds within the liquid medicine. This rotation prevents sedimentation and ensures a uniform concentration of liquid medicine across each layer of seeds within bag 27. Furthermore, the rotation encourages liquid medicine to flow through the gaps between the seeds within bag 27, promoting fluid flow between the seeds and improving uniform contact between the seeds and the liquid medicine. Furthermore, rotation allows multiple breathable bags 27 to interchange, switching treatment locations.

[0033] A controller controls hydraulic cylinder 1 (21) to periodically raise and lower support frame 22 and breathable bag 27, precisely controlling the duration of the seed soaking. After the specified time, the seeds are removed from the solution and subjected to a soaking-drying cycle (typically two hours of soaking followed by two hours of drying). This breaks the moisture balance inside and outside the seeds, promotes oxygen exchange, and increases their water absorption rate while effectively preventing anaerobic fermentation.

[0034] The controller controls the hydraulic cylinder 1 21 to drive the support frame 22 and the breathable bag 27 to move downward, so that the multiple breathable bags 27 containing seeds are respectively in contact with the seed inside and outside switching mechanism 3 and the seed and liquid uniform contact mechanism 4; The bottom of the air bag 27 contacts the top of the conical center pusher 37. When the bag continues to move downward, the conical center pusher 37 limits the bottom of the air bag 27. Since the bottom area of ​​the air bag 27 is larger than the top of the conical center pusher 37 and the air bag 27 is made of flexible material, when the bag continues to move downward, the seeds on the outer layer of the bag 27 will sag downward under the action of gravity (such as Figure 8 ), causing the outer layer seeds to move below the inner layer seeds. Subsequently, hydraulic cylinder two 32 is activated to drive multiple arc-shaped splints 36 to move closer to the breathable bag 27, clamping the collapsed middle part of the bag body, so that the seeds are layered in upper and lower layers. At this time, the seeds originally located in the center of the breathable bag 27 are above the arc-shaped splint 36, and the seeds originally located in the outer layer are below. When hydraulic cylinder one 21 is activated to move the multiple breathable bags 27 upward, the friction between the bag body and the arc-shaped splint 36 drives the arc-shaped splint 36 and the inner plate 35 to move upward, stretching spring two 417, thereby maintaining the clamping state of the arc-shaped splint 36, stabilizing the upper and lower layered structure, and preventing the center seeds from being wrapped by the outer layer seeds again. Then hydraulic cylinder two 32 is activated to reset the multiple arc-shaped splints 36 and release the clamping. At this time, the seeds originally in the center are located in the upper layer, and the outer layer seeds are located in the lower layer. This reciprocating method realizes the position exchange of the seeds in the inner and outer layers of the breathable bag 27, which not only ensures the uniformity of the contact between the seeds in different layers of the breathable bag 27 and the liquid medicine, but also avoids the anoxic fermentation of the seeds caused by internal lack of ventilation.

[0035] When the air-permeable bag 27 is lowered into the ring-shaped plate 418, the inner wall of the arc-shaped plate 411 contacts the air-permeable bag 27. At this time, the second motor 420 is started to drive the fifth gear 421 to rotate. The fifth gear 421 simultaneously drives the third gear 42 and the fourth gear 419 to rotate. The rotation of the third gear 42 drives the reciprocating screw 41 to rotate, and promotes the up-and-down reciprocating movement of the moving plate 43.

[0036] The up-and-down reciprocating movement of the moving plate 43 drives the rotating shaft 48, the material supporting plate 410, the arc-shaped plate 411, the multi-hole nozzle 412, the ring-shaped plate 418 and the ring-shaped shell 413 to move synchronously. The material supporting plate 410 lifts the air-permeable bag 27 to move up and down, so that the air-permeable bag 27 and the seeds inside the air-permeable bag 27 are shaken. The shaking in water can effectively prevent the seeds from adhering to each other, and the gaps generated are more conducive to the flow of water. At the same time, the liquid pump 422 extracts the liquid medicine and sprays it onto the seeds in the air-permeable bag 27 through the multi-hole nozzle 412. The liquid medicine impact combined with the gaps generated by the shaking of the seeds can more easily penetrate the seed pile, ensuring the uniformity of the contact between the seeds and the liquid medicine.

[0037] On the other hand, the rotation of the fourth gear 419 drives the rotating shaft 45 and the square plate 47 to rotate. The rotation of the square plate 47 drives the rotating shaft 48 outside the square plate 47 to rotate, and in turn drives the material supporting plate 410, the arc-shaped plate 411, the multi-hole nozzle 412 and the ring-shaped plate 418 to rotate. The arc-shaped plate 411 drives the multi-hole nozzle 412 to rotate, so that it performs a circular motion around the air-permeable bag 27. This multi-directional spraying further enhances the ability of the liquid medicine to penetrate the seed pile, ensuring the uniformity of the contact between the liquid medicine and the seeds.

[0038] The above describes only the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution and the inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A grain pretreatment device, comprising a seed soaking liquid mechanism (1), characterized in that: Also includes: An intermittent seed soaking mechanism (2) connected to the seed soaking liquid mechanism (1) comprises a hydraulic cylinder (21), a support frame (22) being fixed to the telescopic end of the hydraulic cylinder (21), and a plurality of hooks (26) being fixed to the bottom of the support frame (22); The seed bag internal and external switching mechanism (3) is connected to the seed soaking liquid mechanism (1), and comprises two mounting plates (31), a conical central pushing block (37) is fixed on the top of the mounting plates (31), and a seed limiting assembly is installed on the mounting plates (31); A mechanism (4) for uniformly contacting seeds with liquid medicine, which is connected to the seed soaking liquid mechanism (1), comprises a rotating liquid spraying mechanism and a gap generating mechanism; The rotary liquid spraying mechanism comprises an arc-shaped plate (411), on which a plurality of multi-hole spray heads (412) are fixed; The gap generating mechanism comprises a reciprocating screw (41), wherein the outer thread sleeve of the reciprocating screw (41) is provided with a movable plate (43), the inner rotation of the movable plate (43) is connected to two rotating shafts (48), and the top end of the rotating shaft (48) is fixed with a supporting plate (410).

2. A grain pretreatment device according to claim 1, characterized in that, The seed soaking liquid mechanism (1) comprises a control box (11), a seed soaking barrel (12) is fixed on the top of the control box (11), a medicinal liquid is provided inside the seed soaking barrel (12), and a mounting frame (13) is fixed on the top of the seed soaking barrel (12).

3. A grain pretreatment device according to claim 2, characterized in that: The intermittent seed soaking mechanism (2) further comprises a motor 1 (23) fixed on the top of the mounting frame (13), a gear 1 (24) being fixed to the output end of the motor 1 (23), a gear 2 (25) being meshed with one side of the gear 1 (24), the gear 2 (25) being fixed to the outside of the hydraulic cylinder 1 (21), and the hydraulic cylinder 1 (21) being rotatably connected to the inside of the mounting frame (13); A breathable bag (27) is mounted on the hook (26).

4. A grain pretreatment device according to claim 3, characterized in that: The seed limiting assembly includes a plurality of hydraulic cylinders (32) fixed on a mounting plate (31), and a telescopic assembly is fixed to the telescopic end of the hydraulic cylinder (32); The telescopic assembly includes a housing (33), a plurality of springs (34) are fixed inside the housing (33), and an inner plate (35) is fixed to the top of the plurality of springs (34); An arc-shaped clamping plate (36) is fixed to the top of the inner plate (35), and the inner arc surfaces of the plurality of arc-shaped clamping plates (36) are opposite to each other.

5. The grain pretreatment equipment according to claim 4, characterized in that: The rotary liquid spraying mechanism further comprises an annular plate (418) fixedly connected to the liquid inlet pipes of the plurality of porous nozzles (412); the outer portion of the annular plate (418) is rotatably connected to an annular shell (413); the liquid inlet pipes of the porous nozzles (412) are in communication with the interior of the annular shell (413); one side of the annular shell (413) is in communication with a liquid supply pipe (414); the liquid supply pipe (414) is in communication with a liquid pump (422); and the liquid pump (422) is fixed to the inner wall of the seed soaking cylinder (12); A plurality of slides (415) are fixed to the outer wall of the annular shell (413), and a second guide rod (416) is sleeved inside the slides (415), and the second guide rod (416) is fixed to the bottom inner wall of the seed soaking cylinder (12). A second spring (417) is sleeved outside the second guide rod (416), and the top end of the second spring (417) is fixedly connected to the slides (415), and the bottom end of the second spring (417) is fixedly connected to the bottom inner wall of the seed soaking cylinder (12).

6. The grain pretreatment equipment according to claim 5, characterized in that: The gap generating mechanism further includes a gear three (42) fixed to the bottom end of the reciprocating screw (41), the reciprocating screw (41) is rotatably connected to the bottom of the seed soaking cylinder (12), a plurality of guide rods (44) are fixed to the inner wall of the bottom of the seed soaking cylinder (12), and the guide rods (44) are sleeved inside the movable plate (43); A square hole (49) is provided at the bottom of the rotating shaft (48), a square plate (47) is sleeved inside the square hole (49), a rotating shaft (45) is fixed to the bottom of the square plate (47), the rotating shaft (45) passes through and is rotatably connected to the bottom of the seed soaking cylinder (12), a gear (419) is fixed to the bottom end of the rotating shaft (45), a belt transmission assembly (46) is installed on the outside of the two rotating shafts (45), the belt transmission assembly (46), the gear (42) and the gear (419) are sleeved inside the control box (11), a motor (420) is fixed to the outer wall of the bottom of the seed soaking cylinder (12), a gear (421) is fixed to the output end of the motor (420), and the gear (421) is meshed with the gear (42) and the gear (419); The arc-shaped plate (411) is fixed on the top of the supporting plate (410).

7. The grain pretreatment equipment according to claim 6, characterized in that: A controller is fixed on one side of the mounting frame (13), and the controller is electrically connected to motor 1 (23), hydraulic cylinder 1 (21), hydraulic cylinder 2 (32) and motor 2 (420) respectively.

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