Impurity separation equipment for peanut processing

Abstract

The invention discloses impurity separation equipment for peanut processing, and relates to the technical field of peanut processing equipment, and the impurity separation equipment comprises a frame body, a feeding cavity, a feeding port, a discharging port, a motor, a driving wheel, a driven wheel, a rotating seat, a transmission shaft, a crank, a rocker arm, a connecting arm, a frame body, a sieve plate, a conveying plate, a connecting seat, a first pressure spring and a second pressure spring. Therefore, the drop point is controllable, and the initial screening is optimized. The motor converts rotation into periodic shaking of the frame body through the transmission system, power is stable, and energy consumption is low. The sieve plates and the conveying plates are stacked and obliquely arranged, materials slide downwards under the assistance of gravity, and blocking prevention and flow increase are achieved. Discharging ports of the conveying plate and the screening plate are arranged at intervals, the impurities and the materials are separated and discharged, the stiffness of the first compressed spring is small, the stiffness of the second compressed spring is large, the first compressed spring and the second compressed spring cooperate to enable the frame body to generate asymmetric shaking, the movement uniformity of the screening plate is enhanced, the screening efficiency is improved, and impurity residues are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of peanut processing equipment, and particularly relates to an impurity separation device for peanut processing. BACKGROUND

[0002] In the field of peanut processing, impurity separation is a key link to ensure product quality. The existing impurity separation devices often have a series of technical problems, affecting the processing efficiency and effect. First, low separation efficiency is a prominent problem. Due to unreasonable design of the vibration system, the frame body shakes unstably, resulting in uneven distribution of materials on the sieve plate, so that light impurities and heavy peanut materials are difficult to fully separate, and part of the impurities may remain in the peanuts, reducing the purity of the product. Second, uneven vibration can easily cause screen hole blockage, especially when processing peanuts containing impurities such as soil and small stones, the sieve plate may not be able to effectively remove the blockage during the vibration process, and frequent shutdown for cleaning is required, which interrupts continuous production and increases maintenance costs. In addition, poor material flowability is also a common defect. The slope or structure of the sieve plate of the existing device may not be able to optimize the material flow, resulting in stagnation or too fast sliding of the peanuts on the sieve plate, reducing the effective screening time and affecting the thoroughness of separation. SUMMARY

[0003] The present application provides an impurity separation device for peanut processing, which comprises a frame body, a feeding cavity, a feeding port, a discharging port, a motor, a driving wheel, a driven wheel, a rotating seat, a transmission shaft, a crank, a rocker arm, a connecting arm, a frame body, a sieve plate, a conveying plate, a connecting seat, a first compression spring and a second compression spring. The feeding cavity is arranged on the frame body, the feeding port is arranged at the top of the feeding cavity, and the discharging port is arranged at the lower part of the feeding cavity. The material enters the feeding cavity through the feeding port and is discharged from the discharging port. The motor is fixedly arranged at the bottom of the frame body, the output end of the motor is connected with the driving wheel, the rotating seat is fixedly arranged at the bottom of the frame body, the two ends of the transmission shaft are rotatably connected to the rotating seat, one end of the transmission shaft is connected with the driven wheel, and the driving wheel and the driven wheel are connected through a belt. The transmission shaft is driven to rotate by the rotation of the driving wheel and the transmission of the belt and the driving wheel. The crank is arranged on the transmission shaft, one end of the rocker arm is rotatably connected with the crank, the other end of the rocker arm is rotatably connected with the connecting arm, and the connecting arm is fixedly arranged at the bottom of the frame body. The frame body is provided with the sieve plate and the conveying plate, the sieve plate and the conveying plate are stacked in the height direction and the sieve plate is above the conveying plate, the sieve plate and the conveying plate extend in the downward oblique direction, the periphery of the frame body is provided with the connecting seat, and the two ends of the first compression spring and the second compression spring are connected to the connecting seat and the frame body respectively, wherein the first compression spring is located on the side of the frame body close to the feeding cavity, the second compression spring is located on the side of the frame body away from the feeding cavity, the frame body is driven to shake under the action of the first compression spring and the second compression spring through the rotation of the transmission shaft to drive the rocking arm to rotate, the free length of the first compression spring is equal to the free length of the second compression spring, and the stiffness coefficient of the first compression spring is less than the stiffness coefficient of the second compression spring.

[0004] Further, a plurality of sieve holes are arranged on the sieve plate, and impurities on the material fall into the conveying plate through the sieve holes under the driving of the shaking of the frame body.

[0005] Further, the sieve plate and the conveying plate extend obliquely from the side close to the feeding cavity towards the lower part of the frame body.

[0006] Further, the discharge port is above the sieve plate and close to the end of the sieve plate.

[0007] Further, the sieve plate and the conveying plate are provided with discharge ports respectively on the side away from the feeding cavity, and the discharge ports of the sieve plate and the conveying plate are arranged at intervals in the width direction of the sieve plate.

[0008] Further, the axis of the first compression spring is arranged in the vertical direction, and the angle between the axis of the second compression spring and the vertical direction ranges from 5° to 20°.

[0009] Further, the axis of the second compression spring extends towards the feeding cavity in the vertical upward direction.

[0010] Further, the angle between the extension direction of the sieve plate and the conveying plate and the horizontal direction ranges from 20° to 40°.

[0011] The embodiment of the application has the following beneficial effects: by integrating the feeding, screening and discharging mechanisms, the smooth flow of the material and the effective separation of impurities are ensured. The feeding cavity is arranged on the frame body, the material enters through the feeding port and is discharged from the discharge port and directly falls on the end of the sieve plate, which helps to accurately control the material falling point and avoid scattering or accumulation, thereby optimizing the initial screening effect.

[0012] The motor-driven transmission system includes a driving wheel, a driven wheel, a transmission shaft, a crank, a rocker arm, and a connecting arm, which converts the rotary motion into the periodic shaking of the frame. This mechanical transmission mode provides a stable power source, reduces energy loss, and ensures the consistency of the frame movement. The screen plate and the conveying plate are fixed on the frame and are stacked and extend downward at an angle to promote the natural sliding of the material by gravity, enhance the flowability, and prevent clogging.

[0013] The screen plate is provided with a plurality of screen holes. Under the shaking action of the frame, impurities in the peanut material fall into the conveying plate below through the screen holes, while the peanuts are retained on the screen plate. The discharge outlets of the screen plate and the conveying plate are arranged at intervals in the width direction, ensuring that the separated impurities and peanuts are discharged from different outlets respectively, avoiding cross contamination, and improving the separation purity. This layout simplifies the discharge process and reduces manual intervention.

[0014] The frame is connected to the frame body by the connecting seat and the first compression spring and the second compression spring to form an elastic support system. The first compression spring is located near the feeding cavity side, has a smaller stiffness coefficient, and the axis is vertically arranged; the second compression spring is located away from the feeding cavity side, has a larger stiffness coefficient, the axis has an angle of 5° to 20° with the vertical direction, and extends towards the feeding cavity. When the transmission shaft rotates to drive the rocker arm to drive the frame, this compression spring configuration produces an asymmetric shaking effect, the first compression spring provides basic buffering, and the second compression spring introduces a tilt restoring force, enhancing the reciprocating motion trajectory of the frame, making the screen plate shake more evenly and efficiently, helping to disperse the material, improving the screen hole pass rate, reducing impurity residues, while reducing equipment vibration and noise, prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 An exemplary structure schematic diagram of a foreign matter separation equipment for peanut processing provided by an embodiment of the present application is shown; Figure 2 Another angle structure schematic diagram of a foreign matter separation equipment for peanut processing provided by an embodiment of the present application is shown Figure 3 A top view structure schematic diagram of a foreign matter separation equipment for peanut processing provided by an embodiment of the present application is shown; Figure 4 A front view structure schematic diagram of a foreign matter separation equipment for peanut processing provided by an embodiment of the present application is shown. DETAILED DESCRIPTION

[0017] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0018] In order to further illustrate the technical solutions provided by the embodiments of the present application, the following will describe in detail with reference to the drawings and specific embodiments. Although the embodiments of the present application provide the following operation steps of the special voltage transformation device as shown in the embodiments or drawings, more or less operation steps can be included in the special voltage transformation device based on conventional or non-creative labor. The execution order of the steps is not limited to the execution order provided by the embodiments of the present application in the steps that there is no necessary causal relationship in logic.

[0019] Reference Figures 1-4 As shown in the drawings, the

numbered naming

[0020] Feeding cavity 20 is arranged on the frame body 11, the top of feeding cavity 20 is provided with feeding port 21, the lower part of feeding cavity 20 is provided with discharge port 22, material is entered into feeding cavity 20 through feeding port 21 and is discharged from discharge port 22, discharge port 22 is located above sieve plate 42 and is close to the end of sieve plate 42, so that the material falls on sieve plate 42 through discharge port 22.

[0021] Feeding cavity 20 is fixedly installed on the upper part of frame body 11, the top of which is provided with feeding port 21 for receiving the peanut material to be processed, and the lower part is provided with discharge port 22 for guiding the downward discharge of the material. The position of the discharge port 22 is optimized to be directly above the sieve plate 42 and adjacent to the starting end of the sieve plate 42, so that the material can accurately fall on the surface of the sieve plate 42 after being discharged from the feeding cavity 20. It ensures that the material is uniformly distributed in the initial stage of the screening process, avoiding the problems of accumulation or splashing caused by the deviation of the falling point.

[0022] By setting the discharge port 22 close to the end of the screen plate 42, the material naturally slides into the working area of the screen plate 42 under the action of gravity, and the material gradually spreads along the length direction of the screen plate 42 by using the inclined arrangement and shaking movement of the screen plate 42 itself. The design purpose is to control the flow path of the material, so that the peanuts and impurities are fully exposed to the screen holes on the screen plate 42, reducing the screening blind area. During the impurity separation process, the position of the discharge port 22 of the feeding chamber 20 directly affects the screening efficiency and separation effect. After the material falls into the screen plate 42 from the discharge port 22, it is immediately driven by the shaking of the frame 41, and the impurities fall through the screen holes to the conveying plate 43 below, while the peanuts are conveyed forward along the screen plate 42.

[0023] The motor 31 is fixedly arranged at the bottom of the frame 11, the output end of the motor 31 is connected to the driving wheel 32, the rotating seat 34 is fixedly arranged at the bottom of the frame 11, the two ends of the transmission shaft 35 are rotatably connected to the rotating seat 34, one end of the transmission shaft 35 is connected to the driven wheel 33, the driving wheel 32 and the driven wheel 33 are connected by a belt, the rotation of the driving wheel 32 drives the transmission shaft 35 to rotate under the transmission of the belt and the driving wheel 32, the crank 36 is arranged on the transmission shaft 35, one end of the rocker arm 37 is rotatably connected to the crank 36, the other end of the rocker arm 37 is rotatably connected to the connecting arm 38, and the connecting arm 38 is fixedly arranged at the bottom of the frame 41.

[0024] The motor 31 is fixedly arranged at the bottom of the frame 11, the output end of the motor 31 is connected to the driving wheel 32, the rotating seat 34 is fixedly arranged at the bottom of the frame 11, the two ends of the transmission shaft 35 are rotatably connected to the rotating seat 34, one end of the transmission shaft 35 is connected to the driven wheel 33, the driving wheel 32 and the driven wheel 33 are connected by a belt, the rotation of the driving wheel 32 drives the transmission shaft 35 to rotate under the transmission of the belt and the driving wheel 32, the crank 36 is arranged on the transmission shaft 35, one end of the rocker arm 37 is rotatably connected to the crank 36, the other end of the rocker arm 37 is rotatably connected to the connecting arm 38, and the connecting arm 38 is fixedly arranged at the bottom of the frame 41.

[0025] One end of the transmission shaft 35 is connected to the driven wheel 33, and the driving wheel 32 and the driven wheel 33 are connected by a belt to realize power transmission, so that the rotary motion of the motor 31 can be efficiently transmitted to the transmission shaft 35.

[0026] The crank 36 is arranged on the transmission shaft 35, one end of the rocker arm 37 is rotatably connected to the crank 36, the other end is rotatably connected to the connecting arm 38, and the connecting arm 38 is fixedly arranged at the bottom of the frame 41. The crank 36 and the rocker arm 37 mechanism jointly act on the continuous rotary motion of the transmission shaft 35 to convert it into the reciprocating swing motion of the rocker arm 37, and then drive the frame 41 to produce regular shaking through the connecting arm 38, so that the frame 41 can vibrate in a controllable manner, providing the necessary dynamic conditions for the screening of the material on the screen plate 42.

[0027] The frame 41 is driven by the motor 31 to continuously shake, which promotes the uniform distribution and forward movement of the peanut materials on the screen plate 42, and the impurities are effectively separated through the screen holes. This design optimizes the power transmission path, reduces the vibration noise during equipment operation, and ensures the continuity and efficiency of the screening process.

[0028] The screen plate 42 and the conveying plate 43 are fixedly arranged on the frame 41 and are stacked in the height direction, with the screen plate 42 above the conveying plate 43. The screen plate 42 and the conveying plate 43 extend in the downward and oblique direction, specifically, the angle between the extension direction of the screen plate 42 and the horizontal direction is in the range of 20°-40°.

[0029] The screen plate 42 and the conveying plate 43 are fixedly arranged on the frame 41 and are stacked in the height direction, with the screen plate 42 above the conveying plate 43. The screen plate 42 and the conveying plate 43 extend in the downward and oblique direction, specifically, the angle between the extension direction of the screen plate 42 and the horizontal direction is in the range of 20°-40°.

[0030] The screen plate 42 is used for preliminary screening of the peanut materials, and the conveying plate 43 is located below the screen plate 42 and is used for receiving and collecting the small impurities falling through the screen holes. The oblique extension arrangement utilizes the weight of the materials to promote the natural sliding of the peanut materials on the screen plate 42, while the impurities fall into the conveying plate 43 through the screen holes, achieving preliminary separation and collection of the impurities.

[0031] The oblique angle of the screen plate 42 and the conveying plate 43 is in the range of 20°-40°, which ensures the smoothness of the material flow and avoids the problems of too fast sliding caused by too large angle or accumulation caused by too small angle.

[0032] The angle setting allows the materials to have sufficient residence time on the screen plate 42, ensuring that the impurities are fully separated through the screen holes. The oblique arrangement of the conveying plate 43 facilitates the movement of the collected impurities along the plate surface to the discharge port 45, achieving continuous discharge. The stacked structure optimizes the space utilization, reduces the overall height of the equipment, and improves the compactness of the structure.

[0033] Through the cooperation of the screen plate 42 and the conveying plate 43, the materials on the screen plate 42 undergo uniform shaking and screening, and the impurities effectively fall onto the conveying plate 43, while the peanuts continue to be conveyed forward along the screen plate 42. This setting improves the efficiency and thoroughness of impurity separation and reduces the risk of screening blind area and blockage.

[0034] The shaking motion of the oblique angle matching frame body 41 enhances the continuity and stability of the material processing, ultimately achieving efficient and reliable peanut processing, and improving the production capacity and separation quality of the overall equipment.

[0035] The screen plate 42 is provided with a plurality of screen holes. Under the shaking drive of the frame body 41, the impurities on the material fall onto the conveying plate 43 through the screen holes.

[0036] The screen plate 42 is uniformly distributed with a plurality of screen holes. The screen holes are used to allow fine impurities in the material to pass through during the screening process, while the peanut material is retained on the surface of the screen plate 42. The screen plate 42 is regularly vibrated under the shaking drive of the frame body 41, which promotes the continuous turning and spreading of the material on the screen plate 42, thereby enhancing the separation effect of impurities and peanuts.

[0037] The shaking motion is transmitted through the crank 36 and rocker arm 37 mechanism, so that the screen plate 42 vibrates in a controllable manner, avoiding material accumulation or clogging of the screen holes, and ensuring the continuity and stability of the screening process.

[0038] Through the setting of the screen holes, the impurities naturally fall under the action of gravity to the conveying plate 43 below, realizing effective collection and separation of impurities. The shaking drive of the screen plate 42 optimizes the flow path of the material, allowing the peanuts to gradually move forward on the screen plate 42, while the impurities are promptly discharged through the screen holes.

[0039] The screen plate 42 and the conveying plate 43 are provided with discharge ports 45 on the side away from the feeding cavity 20. The discharge ports 45 of the screen plate 42 and the conveying plate 43 are arranged at intervals along the width direction of the screen plate 42. The impurities separated by screening and filtering fall onto the conveying plate 43 and are discharged from the discharge ports 45 on the conveying plate 43. The filtered peanut material is conveyed outward from the discharge ports 45 of the screen plate 42, thereby realizing the separation and processing of impurities.

[0040] The screen plate 42 and the conveying plate 43 are provided with discharge ports 45 on the side away from the feeding cavity 20. The discharge ports 45 of the screen plate 42 and the conveying plate 43 are arranged at intervals along the width direction of the screen plate 42. This allows the peanut material and impurities processed by screening to be discharged from different outlets, thereby realizing effective separation of impurities and peanuts.

[0041] The screen plate 42 is located above the conveying plate 43 and extends obliquely, with the screen holes on the screen plate 42 allowing impurities to pass through and fall onto the conveying plate 43 under the shaking action of the frame body 41, while the peanut material is retained on the surface of the screen plate 42 and moves forward. The interval arrangement of the discharge ports 45 optimizes the discharge path of the material, avoiding mixing or cross-contamination of peanuts and impurities at the outlet, and ensuring the purity and continuity of the separation process.

[0042] The purpose of setting the discharge port 45 is to solve the technical problems of incomplete impurity separation and chaotic discharge in the peanut processing process. By spacing the discharge ports 45 of the sieve plate 42 and the conveying plate 43 in the width direction, after the material on the sieve plate 42 undergoes shaking and screening, the impurities are concentrated and discharged through the discharge port 45 of the conveying plate 43, and the peanut material is smoothly output from the discharge port 45 of the sieve plate 42.

[0043] The discharge mechanism reduces the risk of material accumulation in the outlet area, improving the stability and efficiency of the device processing. The spaced arrangement also makes full use of the spatial layout of the frame 41, making the discharge process work in coordination with the screening movement, further enhancing the completeness of impurity separation.

[0044] The periphery of the frame 41 is provided with a connecting seat 44, and the two ends of the first compression spring 51 and the second compression spring 52 are connected to the connecting seat 44 and the frame 11 respectively. The first compression spring 51 is located on the side of the frame 41 close to the feeding cavity 20, and the second compression spring 52 is located on the side of the frame 41 away from the feeding cavity 20. The rotation of the transmission shaft 35 drives the rocker arm 37 to rotate and drives the frame 41 to shake under the action of the first compression spring 51 and the second compression spring 52. The free length of the first compression spring 51 is equal to the free length of the second compression spring 52, and the stiffness coefficient of the first compression spring 51 is less than the stiffness coefficient of the second compression spring 52.

[0045] The periphery of the frame 41 is provided with a connecting seat 44, and the two ends of the first compression spring 51 and the second compression spring 52 are connected to the connecting seat 44 and the frame 11 respectively. The first compression spring 51 is located on the side of the frame 41 close to the feeding cavity 20, and the second compression spring 52 is located on the side of the frame 41 away from the feeding cavity 20. The transmission shaft 35 drives the frame 41 through the crank 36 and the rocker arm 37 mechanism, so that the frame 41 produces regular shaking movement under the elastic support of the first compression spring 51 and the second compression spring 52.

[0046] The free length of the first compression spring 51 and the second compression spring 52 is equal, which ensures the consistency of the horizontal position of the frame 41 in static state; however, the stiffness coefficient of the first compression spring 51 is less than the stiffness coefficient of the second compression spring 52, thereby introducing an asymmetric elastic response in the dynamic shaking process.

[0047] The purpose of setting the connecting seat 44 and the compression spring is to provide controllable suspension support for the frame 41, so that the frame 41 can realize stable shaking under the drive of the motor 31. The difference in stiffness coefficient of the compression spring makes the frame 41 have lower stiffness on the side close to the feeding cavity 20, which is easy to produce larger displacement when shaking, which is beneficial to the buffering and uniform spreading of the material falling into the sieve plate 42 from the discharge port 22.

[0048] The second compression spring 52 distal to the frame 41 has a larger stiffness, providing stronger restoring force, making the discharging process at the end of the sieve plate 42 more stable, preventing material from splashing or piling up, and optimizing the vibration characteristics of the frame 41, so that the material on the sieve plate 42 is fully turned under the shaking action, and the impurities are effectively separated through the sieve holes.

[0049] The frame 41 is elastically connected to the rack body 11 through the connecting seat 44, and the first compression spring 51 and the second compression spring 52 are respectively located on the proximal side of the feeding cavity 20 and the distal side of the frame 41. The stiffness coefficient of the first compression spring 51 is smaller than that of the second compression spring 52. The difference in stiffness coefficient is designed to optimize the shaking characteristics of the frame 41 under the driving of the motor 31, thereby affecting the vibration separation process of the sieve plate 42 and the conveying plate 43.

[0050] The lower stiffness of the first compression spring 51 makes the proximal side of the frame 41 prone to generate a larger amplitude when shaking, providing a buffer effect for the material falling into the sieve plate 42 from the discharge port 22, reducing the impact force, and promoting the uniform spreading of the peanut material at the starting end of the sieve plate 42. The higher stiffness of the second compression spring 52 gives the distal side of the frame 41 stronger rigidity, limiting the vibration amplitude, ensuring that the area of the discharge port 45 at the end of the sieve plate 42 remains stable, preventing the material from splashing or piling up during the discharging process.

[0051] The difference in stiffness coefficient causes the frame 41 to form a gradient response when vibrating, and the combination of soft elasticity on the proximal side and hard elasticity on the distal side makes the sieve plate 42 produce an asymmetric shaking mode, which helps the material move along the inclined path on the sieve plate 42 to experience gradually increasing vibration intensity, and the impurities are more easily separated by inertial action at the sieve holes and fall to the conveying plate 43.

[0052] At the same time, the conveying plate 43 vibrates synchronously under the driving of the frame 41, but it is located below the sieve plate 42. The difference in stiffness indirectly optimizes the impurity collection efficiency and avoids the impurities from staying on the conveying plate 43. The introduction of the vibration gradient solves the problems of uneven material distribution and incomplete separation in traditional equipment, improving the continuity and consistency of the screening process.

[0053] By adjusting the stiffness of the compression spring, the vibration of the frame 41 matches the material processing requirements, the peanut material on the sieve plate 42 is fully turned, the impurity separation is more complete, and the discharging process is smooth. The vibration noise of the equipment during operation is reduced, and the stability is enhanced, ultimately realizing efficient and reliable peanut processing operation, meeting the production requirements of high-purity peanut products.

[0054] The axis of the first compression spring 51 is arranged in the vertical direction, and the angle between the axis of the second compression spring 52 and the vertical direction is in the range of 5°-20° (please refer to Figure 4 in ∠A), and the axis of the second compression spring 52 extends in the vertical upward direction towards the feeding cavity 20.

[0055] The periphery of the frame body 41 is connected with the rack body 11 through the connecting seat 44, the axis of the first compression spring 51 is arranged in the vertical direction, the angle between the axis of the second compression spring 52 and the vertical direction is controlled in the range of 5° to 20°, and the axis of the second compression spring 52 extends in the vertical upward direction and towards the feeding cavity 20.

[0056] The movement track of the frame body 41 in the shaking process is optimized, a specific elastic response is introduced through the spatial orientation difference of the compression springs, and the screening efficiency is improved. The vertical arrangement of the first compression spring 51 provides vertical buffering for the side of the frame body 41 close to the feeding cavity 20, so that the material falling from the discharge port 22 to the sieve plate 42 obtains a smooth transition and the impact force on the screening process is reduced. The inclined angle design of the second compression spring 52 makes the far side of the frame body 41 not only have a vertical displacement when shaking, but also generate an elastic component in the horizontal direction, guiding the frame body 41 to form a composite vibration mode.

[0057] The axis of the second compression spring 52 extends towards the feeding cavity 20, and the inclined angle is between 5° and 20°, which ensures that the movement direction of the far side of the frame body 41 is coordinated with the material flow path when the frame body 41 shakes under the drive of the transmission shaft 35. The stability of the end of the sieve plate 42 is enhanced, preventing the material from accumulating or splashing at the discharge port 45, while promoting the impurities to fall through the sieve holes to the conveying plate 43. The elastic properties of the compression springs cooperate with the shaking of the frame body 41, making the granular material uniformly distributed on the sieve plate 42 and move forward, and the impurity separation is more thorough. The second compression spring 52 arranged at an inclination also provides additional restoring force to offset the inertial force in the shaking process, reduce the vibration noise of the equipment, and improve the running stability.

[0058] Through the cooperation of the first compression spring 51 and the second compression spring 52, the frame body 41 realizes controllable shaking movement, solving the technical problems of uneven material distribution and incomplete separation in traditional impurity separation equipment.

[0059] The axis of the first compression spring 51 is arranged in the vertical direction to provide vertical elastic support for the side of the frame body 41 close to the feeding cavity 20, so that the material falling from the discharge port 22 to the sieve plate 42 obtains buffering and reduces the impact on the starting end of the sieve plate 42. The axis of the second compression spring 52 forms an angle of 5° to 20° with the vertical direction, and the axis extends in the vertical upward direction and towards the feeding cavity 20. The inclined arrangement introduces an elastic component in the horizontal direction, so that the far side of the frame body 41 not only generates a vertical displacement when vibrating, but also forms a guided movement towards the feeding cavity 20. This feature optimizes the overall vibration track of the frame body 41, so that the sieve plate 42 and the conveying plate 43 present a composite vibration mode during the shaking process, enhancing the uniformity of the material distribution on the sieve plate 42.

[0060] The inclination angle of the second compression spring 52 causes the frame body 41 to slightly rotate or swing when vibrating, and the movement combined with the oblique extension of the sieve plate 42 makes the peanut material move more smoothly along the length direction on the sieve plate 42, avoiding local accumulation or blockage. The inclined vibration increases the dynamic action of the surface of the sieve plate 42, and the impurities are more likely to fall into the conveying plate 43 through the sieve hole under the action of inertia, thereby improving the separation efficiency.

[0061] At the same time, the extension direction of the second compression spring 52 towards the feeding cavity 20 provides a restoring force guide, ensuring that the discharge port 45 area at the end of the sieve plate 42 remains stable, preventing material from splashing or being discharged poorly, and the conveying plate 43 vibrates synchronously to effectively collect impurities and guide them to the discharge port 45.

[0062] The material enters the feeding cavity 20 from the feeding port 21, is discharged from the discharge port 22, and falls onto the upper surface of the sieve plate 42. After the motor 31 is started, its output end drives the driving wheel 32 to rotate, which drives the driven wheel 33 and the transmission shaft 35 to rotate through the belt drive. The crank 36 on the transmission shaft 35 converts the rotary motion into reciprocating swing through the rocker arm 37 mechanism, and then drives the frame body 41 to produce regular rocking motion through the connecting arm 38. During the rocking process of the frame body 41, the sieve plate 42 vibrates, causing the peanut material to spread uniformly in the oblique downward direction, and the impurities fall through the sieve hole to the conveying plate 43 under the action of vibration.

[0063] The rocking of the frame body 41 is cooperatively controlled by the elastic support of the first compression spring 51 and the second compression spring 52. The first compression spring 51 is located near the feeding cavity 20 and has a vertical axis, providing vertical buffering to reduce the impact when the material falls; the second compression spring 52 is located at the far side and has an axis at an angle of 5° to 20° with the vertical direction, and extends towards the feeding cavity 20, introducing a horizontal guide component, so that the frame body 41 forms a composite vibration mode. The vibration optimizes the flow path of the material on the sieve plate 42, avoids accumulation, and enhances the impurity separation efficiency. The peanut material on the sieve plate 42 gradually moves towards the discharge port 45 under the action of rocking, while the impurities fall through the sieve hole to the conveying plate 43 and slide along the conveying plate 43 to the impurity discharge port 45.

[0064] After screening, the peanut material is output from the discharge port 45 of the sieve plate 42, and the impurities are separately discharged from the discharge port 45 of the conveying plate 43, realizing continuous separation. The entire working process utilizes the cooperation of mechanical transmission and elastic elements to ensure the uniformity and stability of material processing, improve the thoroughness of impurity separation and the reliability of equipment operation, and finally complete the efficient peanut processing operation.

[0065] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. An impurity separation device for peanut processing, characterized in that, It includes: Frame, feeding chamber, feeding port, discharging port, motor, drive wheel, driven wheel, rotating seat, transmission shaft, crank, rocker arm, connecting arm, frame, screen plate, conveying plate, connecting seat, first compression spring, second compression spring; The feeding chamber is disposed on the frame, the feeding port is disposed at the top of the feeding chamber, and the discharge port is disposed at the bottom of the feeding chamber. The material enters the feeding chamber through the feeding port and is discharged from the discharge port. The motor is fixedly mounted at the bottom of the frame, and the output end of the motor is connected to the drive wheel. The rotating seat is fixedly mounted at the bottom of the frame. Both ends of the transmission shaft are rotatably connected to the rotating seat. One end of the transmission shaft is connected to the driven wheel. The drive wheel and the driven wheel are connected by a belt. The rotation of the drive wheel, along with the transmission of the belt and the drive wheel, drives the transmission shaft to rotate. The transmission shaft is equipped with a crank. One end of the rocker arm is rotatably connected to the crank, and the other end of the rocker arm is rotatably connected to the connecting arm. The connecting arm is fixedly mounted at the bottom of the frame. The sieve plate and the conveyor plate are fixedly mounted on the frame. The sieve plate and the conveyor plate are stacked along the height direction, with the sieve plate located above the conveyor plate. The sieve plate and the conveyor plate extend obliquely downward. The connecting seats are respectively provided on the periphery of the frame. The two ends of the first compression spring and the second compression spring are respectively connected to the connecting seats and the frame. The first compression spring is located on the side of the frame closer to the feeding cavity, and the second compression spring is located on the side of the frame away from the feeding cavity. The rotation of the drive shaft drives the rocker arm to rotate and drives the frame to sway under the action of the first compression spring and the second compression spring. The free length of the first compression spring is equal to the free length of the second compression spring, and the stiffness coefficient of the first compression spring is less than that of the second compression spring.

2. The impurity separation equipment for peanut processing as described in claim 1, characterized in that, The screen plate is provided with multiple screen holes. Driven by the shaking of the frame, impurities on the material fall into the conveyor plate through the screen holes.

3. The impurity separation equipment for peanut processing as described in claim 2, characterized in that, Both the sieve plate and the conveyor plate extend obliquely downward toward the frame from the side closest to the feeding chamber.

4. The impurity separation equipment for peanut processing as described in claim 1, characterized in that, The discharge port is located above the sieve plate and near the end of the sieve plate.

5. The impurity separation equipment for peanut processing as described in claim 4, characterized in that, The sieve plate and the conveyor plate are respectively provided with discharge ports on the side away from the feeding chamber, and the discharge ports of the sieve plate and the conveyor plate are spaced apart along the width direction of the sieve plate.

6. The impurity separation device for peanut processing as described in claim 1, characterized in that, The axis of the first compression spring is set in the vertical direction, and the angle between the axis of the second compression spring and the vertical direction is in the range of 5°-20°.

7. The impurity separation equipment for peanut processing as described in claim 6, characterized in that, The axis of the second compression spring extends vertically upward toward the feeding chamber.

8. The impurity separation device for peanut processing as described in claim 3, characterized in that, The angle between the extending direction of the sieve plate and the conveying plate and the horizontal direction ranges from 20° to 40°.

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