Semen ziziphi spino-seed shelling equipment and semen ziziphi spino-production line

Abstract

The application relates to the technical field of industrial production of spina date, and provides a spina date shelling device and a spina date production line. The spina date shelling device comprises a rack, a first shelling mechanism arranged at the top of the rack, a screening mechanism arranged on the rack and located below the first shelling mechanism, a second shelling mechanism arranged at the top of the rack, a feeding mechanism arranged on one side of the screening mechanism and used for conveying materials on the screening mechanism to the second shelling mechanism, and a driving mechanism arranged at the bottom of the rack and in driving connection with the first shelling mechanism and the screening mechanism. The spina date shelling device has the advantages of high production efficiency and complete shelling effect, and can meet the industrial production requirement of spina date. In addition, the application also relates to a spina date production line adopting the spina date shelling device.

Description

Technical Field

[0001] This application relates to the field of jujube seed industrial production technology, and in particular to a jujube seed shelling device. Background Technology

[0002] Sour jujube seed refers to the dried, mature seed of the sour jujube plant (Ziziphus jujuba), a member of the Rhamnaceae family. It is a promising medicinal and edible material, rich in saponins, flavonoids, fatty acids, and other bioactive components. It has calming and soothing effects and is widely used in the production of traditional Chinese medicine preparations, health foods, and functional foods. Because sour jujube seeds are encased in a hard outer shell tightly bound to the kernel, this shell must be efficiently and thoroughly removed to effectively utilize its medicinal or edible value.

[0003] In industrial production, the shelling process of jujube kernels mainly borrows from the general processing methods of nuts or grains, namely mechanical crushing: relying on the relative movement of rollers or rollers to generate extrusion pressure to crush the shell, combined with airflow impact, using high-speed airflow to cause the shelled material to collide with hard surfaces or between materials to achieve shell removal. However, jujube kernels themselves have significant individual size differences, with a length usually between 5 and 9 mm and a width between 4 and 7 mm, and an irregular shape such as flat oval or nearly round. Mechanical crushing is difficult to accurately adapt to kernels of different sizes and irregular shapes, which can easily lead to small kernels being under-shelled due to insufficient pressure, resulting in a large amount of semi-finished shelled kernels that still need to be manually sorted or processed with complex equipment.

[0004] As can be seen from the above, the existing mechanical crushing and shelling methods for jujube kernels not only cause a certain waste of raw materials, but also hinder the continuous and automated process of the entire jujube kernel industrial production, ultimately restricting the improvement of overall production efficiency. Utility Model Content

[0005] In view of this, this application aims to propose a jujube seed dehulling device and a jujube seed production line to improve the thoroughness of jujube seed dehulling and thus enhance the overall efficiency of jujube seed industrial production.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0007] A jujube kernel shelling device, including a frame;

[0008] The first shelling mechanism is located at the top of the frame;

[0009] A screening mechanism is mounted on the frame and located below the first dehulling mechanism;

[0010] The second shelling mechanism is located at the top of the frame;

[0011] A feeding mechanism is provided on one side of the screening mechanism and is used to transport the material on the screening mechanism to the second dehulling mechanism;

[0012] The drive mechanism is located at the bottom of the frame and is connected to the first dehulling mechanism and the screening mechanism respectively.

[0013] Furthermore, the first shelling mechanism includes a first roller, which is fixedly mounted on the top of the frame;

[0014] The first rotating shaft is rotatably disposed inside the first drum and is driven by the drive mechanism via a belt;

[0015] The second shelling mechanism includes a second roller, which is fixedly mounted on the top of the frame;

[0016] The second rotating shaft is rotatably disposed inside the second drum and is connected to the first rotating shaft by chain drive.

[0017] The diameter of the first roller is larger than the diameter of the second roller.

[0018] Furthermore, the first roller includes a first hopper and a first bar screen, with the first hopper cover fastened onto the first bar screen to form a cylindrical structure for the first rotating shaft to rotate.

[0019] Furthermore, the second roller includes a second hopper and a second bar screen, with the second hopper cover fastened onto the second bar screen to form a cylindrical structure for the second rotating shaft to rotate;

[0020] The spacing between the bars of the second bar screen is smaller than that of the first bar screen.

[0021] Furthermore, the screening mechanism includes a crankshaft, which is rotatably mounted on the frame and is driven by the drive mechanism via a belt;

[0022] The sieve plate is slidably and tiltably mounted on the frame;

[0023] The connecting rod is fitted onto the crankshaft at one end and hinged to the bottom of the sieve plate at the other end.

[0024] Furthermore, the sieve plate has multiple sieve holes along its thickness direction, and the sieve holes are semi-circular;

[0025] The upper surface of the sieve plate is provided with a retaining edge, and the retaining edge has notches at both the lowest and highest points in the vertical direction of the sieve plate.

[0026] The feeding end of the feeding mechanism is located below the notch at the lowest point in the vertical direction of the sieve plate.

[0027] Furthermore, the feeding mechanism is a feeding fan.

[0028] Furthermore, it also includes a sorting fan, which is mounted on the frame, with its outlet positioned horizontally and located between the first shelling mechanism and the screening mechanism.

[0029] Furthermore, the sorting fan includes a housing, which is rotatably mounted on the frame;

[0030] The blade shaft is rotatably mounted inside the housing and is connected to the drive mechanism via a belt drive.

[0031] The housing has a downwardly inclined guide section.

[0032] Compared with the prior art, this application has the following advantages:

[0033] (1) The jujube kernel shelling equipment described in this application is configured as a structure consisting of a frame, a first shelling mechanism, a screening mechanism, a second shelling mechanism, a feeding mechanism, and a driving mechanism. The frame plays a role in fixing and limiting the setting and installation of other parts of the structure. The first shelling mechanism can perform a shelling operation on the jujube kernel shell. The shelled jujube kernel, jujube kernel shell residue, and a mixture of some jujube kernels that have not been effectively shelled will fall into the screening mechanism. The screening mechanism uses vibration screening to filter out the shell residue through the screen holes. Jujube kernels with a smaller specific gravity are discharged from one side of the screening mechanism, while jujube kernels with a larger specific gravity that have not been effectively shelled enter the feeding mechanism from the other side of the screening mechanism and are fed into the second shelling mechanism. The second shelling mechanism can perform a second shelling on the jujube kernels that the first shelling mechanism failed to effectively shell, thereby achieving a more thorough shelling effect and thus achieving the invention objective of improving the overall efficiency of industrial production of jujube kernels.

[0034] (2) By introducing a first dehulling mechanism and a second dehulling mechanism with different drum sizes into the jujube kernel dehulling equipment, the jujube kernel is dehulled. The first dehulling mechanism with a larger drum size can complete the dehulling process of the jujube kernel at a higher speed to meet the needs of large-scale industrial production of jujube kernel. The second dehulling mechanism with a smaller drum size has a smaller extrusion gap, which can perform secondary extrusion and crushing dehulling on the smaller jujube kernels that were not effectively dehulled in the first dehulling mechanism. This improves the thoroughness of the dehulling effect of the jujube kernel as a whole and achieves the invention objective of improving the overall efficiency of industrial production of jujube kernel.

[0035] (3) By setting the first roller as a hollow cylindrical structure consisting of a first hopper and a first grid screen, it not only provides a limit to the rotation of the first rotating shaft, but the open shape of the top of the first hopper facilitates the feeding process into the first hopper. The first grid screen can cooperate with the first rotating shaft to crush the outer shell of the jujube kernel and has a certain screening function, preventing the large-sized, uncrushed jujube kernels from directly exiting from the first roller. By setting the second roller as a hollow cylindrical structure consisting of a second hopper and a second grid screen, it not only provides a limit to the rotation of the second rotating shaft, but the open shape of the top of the second hopper facilitates the feeding process into the second hopper. The second grid screen can cooperate with the second rotating shaft to crush the outer shell of the jujube kernel and has a certain screening function, preventing the large-sized, uncrushed jujube kernels from directly exiting from the second roller.

[0036] (4) By setting the screening mechanism to a structure consisting of a crankshaft, connecting rod and screen plate, the crankshaft and connecting rod can drive the screen plate to reciprocate under the driving action of the drive mechanism, so that the screen plate can effectively screen and separate the mixture of shelled jujube kernels, jujube kernel shell residue and jujube kernels that have not been effectively shelled by taking advantage of the differences in their physical and chemical properties such as particle size and specific gravity, thereby facilitating the operation of subsequent processes.

[0037] (5) By introducing a sorting fan into the jujube kernel dehulling equipment, it can generate a transverse airflow between the first dehulling mechanism and the screening mechanism, which helps to remove the lightest part of the impurities in the output of the first dehulling mechanism, which helps to further improve the screening effect and reduce the impurity content in the finished product.

[0038] This application also proposes a jujube kernel production line, which uses the jujube kernel shelling equipment described above.

[0039] The advantages of the jujube seed production line described in this application compared to the prior art are the same as the technical effects of the jujube seed shelling equipment described above, so they will not be repeated here. Attached Figure Description

[0040] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0041] Figure 1 This is a schematic diagram of the jujube seed shelling equipment described in the embodiments of this application;

[0042] Figure 2 This is an exploded structural diagram of the first unpacking mechanism described in the embodiments of this application;

[0043] Figure 3This is a schematic diagram of the screening mechanism described in the embodiments of this application;

[0044] Figure 4 This is an exploded structural diagram of the second unpacking mechanism described in the embodiments of this application;

[0045] Figure 5 This is a schematic diagram of the structure of the sorting fan described in the embodiment of this application.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Rack;

[0048] 2. First shell-removing mechanism;

[0049] 201. First roller; 202. First shaft;

[0050] 2011, First Hopper; 2012, First Bar Screen;

[0051] 3. Screening mechanism;

[0052] 301. Crankshaft; 302. Sieve plate; 303. Connecting rod;

[0053] 4. Second shell-removing mechanism;

[0054] 401. Second roller; 402. Second shaft;

[0055] 4011, Second hopper; 4012, Second bar screen;

[0056] 5. Feeding mechanism; 6. Drive mechanism;

[0057] 7. Sorting fan;

[0058] 701. Housing; 702. Blade shaft; 7011. Guide section. Detailed Implementation

[0059] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0061] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0063] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0065] An embodiment of the first aspect of this application provides a jujube kernel dehulling device, which is applied to the dehulling process in the industrial production of jujube kernels. It is mainly used to crush and separate the jujube kernels from their hard outer shell. This jujube kernel dehulling device, through its innovative structural design, can improve the thoroughness of the dehulling effect, thereby improving the overall efficiency of industrialized jujube kernel production.

[0066] In existing technologies, the shelling process for jujube kernels mainly borrows from the general processing methods for nuts or grains, namely mechanical crushing: relying on the relative movement of rollers or rollers to generate extrusion pressure to crush the outer shell, combined with airflow impact, using high-speed airflow to cause the shelled material to collide with hard surfaces or with each other to achieve shell removal. However, jujube kernels themselves have significant individual size differences, typically ranging from 5 to 9 mm in length and 4 to 7 mm in width, with irregular shapes such as flat ovals or near-round shapes. Mechanical crushing is difficult to accurately adapt to kernels of different sizes and irregular shapes, easily leading to small kernels being under-shelled due to insufficient pressure, resulting in a large amount of semi-finished shelled kernels that still require manual sorting or processing with complex equipment. Therefore, the existing mechanical crushing and shelling method for jujube kernels not only causes a certain amount of raw material waste, but also hinders the continuous and automated process of the entire jujube kernel industrial production, ultimately restricting the improvement of overall production efficiency.

[0067] In view of this, in order to overcome the shortcomings of the existing technology, the jujube seed shelling device of this embodiment combines... Figures 1 to 5 As shown, the overall design includes a frame 1, a first dehulling mechanism 2, a screening mechanism 3, a second dehulling mechanism 4, a feeding mechanism 5, and a drive mechanism 6.

[0068] The frame 1 can be a metal support frame fixedly mounted on a horizontal surface. The first shelling mechanism 2 and the second shelling mechanism 4 are bolted together and mounted on top of the frame 1. The screening mechanism 3 is mounted below the first shelling mechanism 2. The feeding mechanism 5 is mounted on one side of the screening mechanism 3, transporting material that fails to pass through the screen holes from the screening mechanism 3 to the second shelling mechanism 4. The drive mechanism 6 is bolted together and mounted on the bottom of the frame 1, connecting to both the first shelling mechanism 2 and the screening mechanism 3 to achieve transmission. The feeding mechanism 5 can be a feeding fan, and the drive mechanism 6 can be a drive motor.

[0069] Therefore, by setting the jujube kernel shelling equipment into a structure consisting of a frame 1, a first shelling mechanism 2, a screening mechanism 3, a second shelling mechanism 4, a feeding mechanism 5, and a drive mechanism 6, the frame 1 serves to limit the installation of the other parts. The first shelling mechanism 2 can perform a shelling operation on the jujube kernel shells. The shelled jujube kernels, jujube kernel shell residue, and some unshelled jujube kernels will fall into the screening mechanism 3. The screening mechanism 3 uses vibration to screen, and the shell residue is filtered out through the screen holes. Jujube kernels with a smaller specific gravity are discharged from one side of the screening mechanism 3, while the jujube kernels with a larger specific gravity that have not been effectively shelled enter the feeding mechanism 5 from the other side of the screening mechanism 3. The feeding mechanism 5 then feeds them into the second shelling mechanism 4. The second shelling mechanism 4 can perform a second shelling on the jujube kernels that the first shelling mechanism 2 failed to shell effectively, thereby achieving a more thorough shelling effect and thus realizing the invention objective of improving the overall efficiency of industrial production of jujube kernels.

[0070] Based on the above overall introduction, specifically, as an exemplary structural form, referring to the first unshelling mechanism 2 and the second unshelling mechanism 4 in this embodiment, Figure 1 , Figure 2 and Figure 4 The first shelling mechanism 2 includes a first roller 201 and a first rotating shaft 202. The first roller 201 is detachably mounted on the top of the frame 1 by bolts, and the first rotating shaft 202 is rotatably disposed inside the first roller 201. The first rotating shaft 202 consists of a main shaft, a limiting plate sleeved on the main shaft, and a corrugated pressure plate inserted into the limiting plate. The corrugated pressure plate of the first rotating shaft 202 is disposed against the inner wall of the first roller 201, and can cooperate with the inner wall of the first roller 201 to squeeze and crush the shell of the jujube kernel, thereby promoting the separation of the shell from the kernel. A pulley is sleeved on one end of the main shaft of the first rotating shaft 202, and the main shaft of the first rotating shaft 202 is connected to the power output shaft of the drive mechanism 6 by belt drive.

[0071] The second shelling mechanism 4 includes a second roller 401 and a second rotating shaft 402. The second roller 401 is detachably mounted on the top of the frame 1 by bolt connection, and the second rotating shaft 402 is rotatably disposed inside the second roller 401. The second rotating shaft 402 consists of a main shaft, a limiting plate sleeved on the main shaft, and a corrugated pressure plate inserted into the limiting plate. The corrugated pressure plate of the second rotating shaft 402 is set against the inner wall of the second roller 401, and can cooperate with the inner wall of the second roller 401 to squeeze and crush the shell of the jujube kernel, thereby promoting the separation of the shell from the kernel. A sprocket is sleeved on one end of the second rotating shaft 402, and synchronous transmission is achieved by connecting it with the first rotating shaft 202 through chain drive.

[0072] It is worth noting that the first shelling mechanism 2 and the second shelling mechanism 4 are similar in mechanical structure, and the number of corrugated pressure plates that play the main crushing role is also the same. The main difference is that the diameter of the first roller 201 is larger than the diameter of the second roller 401. Therefore, there is a larger gap between the first rotating shaft 202 and the first roller 201 in the first shelling mechanism 2, which can crush the jujube kernel shells at a higher rate. In contrast, the gap between the second rotating shaft 402 and the second roller 401 in the second shelling mechanism 4 is smaller, which can thoroughly crush and shell the jujube kernels that were not effectively shelled in the first shelling mechanism 2.

[0073] The above describes a method for shelling jujube kernels by introducing a first shelling mechanism 2 and a second shelling mechanism 4 with different drum sizes into the jujube kernel shelling equipment. The first shelling mechanism 2, with its larger drum size, can complete the shelling process at a higher speed to meet the needs of large-scale industrial production. The second shelling mechanism 4, with its smaller drum size and smaller extrusion gap, can perform secondary extrusion and crushing of smaller jujube kernels that were not effectively shelled in the first shelling mechanism 2, thereby improving the overall thoroughness of the shelling process and achieving the invention objective of improving the comprehensive efficiency of industrial production of jujube kernels. The first shelling mechanism 2 and the second shelling mechanism 4 are connected by a chain drive, allowing the first shelling mechanism 2 to transmit torque from the drive mechanism 6 to the second shelling mechanism 4, thus achieving synchronous operation of the first shelling mechanism 2 and the second shelling mechanism 4 without the need for other power sources.

[0074] To further illustrate the specific structures of the first unshelling mechanism 2 and the second unshelling mechanism 4, please refer to... Figure 1 , Figure 2 and Figure 4 The first roller 201 includes a first hopper 2011 and a first bar screen 2012. The first hopper 2011 is welded onto the first bar screen 2012, together forming a hollow cylindrical structure that allows the first rotating shaft 202 to rotate. The top of the first hopper 2011 is open, and the first bar screen 2012 has multiple cylindrical metal bars arranged along a direction parallel to the axis of the first roller 201. In specific implementation, unshelled jujube kernels are fed into the first roller 201, which is formed by the first hopper 2011 and the first bar screen 2012, through the open top of the first hopper 2011. Multiple cylindrical metal bars of the first bar screen 2012 can form a narrow slit with periodically changing gap width with the wave-shaped pressure plate on the first rotating shaft 202 during the rotation of the first rotating shaft 202. The jujube kernels falling into the slit are squeezed and crushed, and their particle size becomes smaller. Under the action of gravity, they fall from the gap between the bars into the screening mechanism 3.

[0075] The second roller 401 includes a second hopper 4011 and a second bar screen 4012. The second hopper 4011 is welded onto the second bar screen 4012, together forming a hollow cylindrical structure that allows the second rotating shaft 402 to rotate. The top of the second hopper 4011 is open, and the second bar screen 4012 has multiple cylindrical metal bars arranged along a direction parallel to the axis of the second roller 401. In specific implementation, small-sized jujube kernels that have not been dehulled by the first dehulling mechanism 2 are conveyed by the feeding mechanism 5 to the open top of the second hopper 4011 and enter the interior of the second roller 401 formed by the second hopper 4011 and the second bar screen 4012. The multiple cylindrical metal bars of the second bar screen 4012 can form a narrow slit with periodically changing gap width with the wave-shaped pressure plate on the second rotating shaft 402 during the rotation of the second rotating shaft 402. The jujube kernels that fall into the slit are squeezed and broken, and their particle size becomes smaller, so they come out from the gap between the bars.

[0076] In the above, by setting the first roller 201 as a hollow cylindrical structure surrounded by the first hopper 2011 and the first bar screen 2012, it can not only limit the rotation of the first rotating shaft 202, but also facilitate the feeding process of the first hopper 2011 by the open shape design of the top of the first hopper 2011. The first bar screen 2012 can cooperate with the first rotating shaft 202 to crush the shell of the jujube kernel and has a certain screening function, preventing the large-sized jujube kernels that have not been crushed from directly coming out of the first roller 201. By setting the second roller 401 as a hollow cylindrical structure surrounded by the second hopper 4011 and the second bar screen 4012, it can not only limit the rotation of the second rotating shaft 402, but also facilitate the feeding process of the second hopper 4011 by the open shape design of the top of the second hopper 4011. The second bar screen 4012 can cooperate with the second rotating shaft 402 to squeeze and crush the shell of the jujube kernel, and also has a certain screening function to prevent the large-sized jujube kernels that have not been crushed from coming out directly from the second roller 401.

[0077] It is worth noting that, in order to avoid the jujube kernels produced by the second shelling mechanism 4 from mixing with those produced by the first shelling mechanism 2, which would affect the efficiency of the jujube kernel shelling process, an inclined slide plate is provided at the bottom of the second shelling mechanism 4 in this embodiment. The slide plate is installed at the bottom of the second shelling mechanism 4 and extends to the outside of the frame 1, serving as a guide for the jujube kernels that have been removed from the second shelling mechanism 4. In addition, to avoid the slide plate interfering with the installation position of the feeding mechanism 5, through holes are provided on the slide plate to allow the feeding mechanism 5 to pass through. Since the average particle size of the jujube kernels entering the second shelling mechanism 4 is small, the spacing between the bars of the second bar screen 4012 is smaller than that of the first bar screen 2012 in order to achieve effective screening.

[0078] To further illustrate how the screening mechanism 3 sorts and classifies the shelled jujube kernels, jujube kernel shell residue, and the mixture of jujube kernels that failed to be effectively shelled, produced by the first shelling mechanism 2, refer to... Figure 1 and Figure 3 The screening mechanism 3 includes a crankshaft 301, a screen plate 302, and a connecting rod 303. The crankshaft 301 is rotatably mounted at the bottom of the frame 1, and a pulley is fitted at one end of the crankshaft 301. The crankshaft 301 is connected to the power output shaft of the drive mechanism 6 via a belt drive to transmit power. The screen plate 302 can be an inclined metal plate with multiple screen holes along its thickness direction. One end of the connecting rod 303 is fitted onto the crankshaft 301, and the other end is hinged to the bottom of the screen plate 302. One end of the bottom of the screen plate 302 is hinged to the connecting rod 303, and the other end is slidably mounted on the frame 1.

[0079] In practice, the crankshaft 301 rotates under the drive of the drive mechanism 6, thereby causing one end of the connecting rod 303 to rotate eccentrically. The sieve plate 302, which is hinged to the other end of the connecting rod 303, reciprocates along its own inclined direction under the drive of the connecting rod 303. Under the reciprocating motion of the sieve plate 302, the mixture consisting of shelled jujube kernels, jujube kernel shell residue, and jujube kernels that have not been effectively shelled falls directly below the sieve plate 302 through the sieve holes of the sieve plate 302 due to the reciprocating motion of the sieve plate 302. The shelled jujube kernels have a lower specific gravity and leave the sieve plate 302 from the higher end in the vertical direction of the inclined sieve plate 302. The jujube kernels that have not been shelled have a lower specific gravity and leave the sieve plate 302 from the lower end in the vertical direction of the inclined sieve plate 302 and enter the feeding mechanism 5, and finally fall into the second shelling mechanism 4 for shelling.

[0080] It is worth noting that, in order to avoid interference between the limiting structure of the frame 1 and the screen plate 302 and the reciprocating motion of the screen plate 302, symmetrical pads are provided on the frame 1, and the edge of the screen plate 302 overlaps on the pads of the frame 1. The pads provide support for the screen plate 302, enabling the screen plate 302 to maintain an upwardly inclined posture.

[0081] In the above, by setting the screening mechanism 3 as a structure composed of a crankshaft 301, a connecting rod 303 and a sieve plate 302, the crankshaft 301 and the connecting rod 303 can drive the sieve plate 302 to reciprocate under the driving action of the driving mechanism 6. This allows the sieve plate 302 to effectively screen and separate the mixture of shelled jujube kernels, jujube kernel shell residue and jujube kernels that have not been effectively shelled by utilizing the differences in their physical and chemical properties such as particle size and specific gravity, thereby facilitating subsequent process operations.

[0082] To reduce material waste, in this embodiment, in conjunction with Figure 1 and Figure 3 The sieve plate 302 has semi-circular sieve holes, and its upper surface edge is provided with a retaining edge. The retaining edge is arranged circumferentially along the upper surface edge of the sieve plate 302, and notches are provided at the lowest and highest points in the vertical direction of the sieve plate 302. In practice, because the sieve holes are semi-circular, their shape can prevent nearly spherical unshelled jujube kernels and shelled jujube kernels from passing through the sieve holes with almost no impact on the efficiency of passing jujube kernel shell residue. The retaining edge on the edge of the sieve plate 302 also serves to prevent material spillage. The notches at the lowest and highest points in the vertical direction of the retaining edge are respectively used for unshelled jujube kernels to enter the feeding mechanism 5, and for shelled jujube kernels to detach from the sieve plate 302.

[0083] To further improve the separation effect of jujube kernels and outer shell residue, combined with Figure 1 and Figure 5 The jujube kernel shelling equipment in this embodiment also includes a sorting fan 7, which is rotatably mounted on the frame 1, so that the air outlet direction of the sorting fan 7 can be adjusted by relative rotation with respect to the frame 1. The sorting fan 7 is installed between the first shelling mechanism 2 and the screening mechanism 3. By adjusting the air outlet direction of the sorting fan 7 to a horizontal direction perpendicular to the material discharge direction, the transverse airflow it generates can help separate components with different specific gravities in advance, or directly remove impurities such as the least dense kernel skin or powdery residue.

[0084] Specifically, refer to Figure 5The sorting fan 7 includes a housing 701 and a blade shaft 702. The blade shaft 702 is rotatably mounted inside the interface, with one end extending to the outside of the housing 701 and fitted with a pulley. The blade shaft 702 is connected to the drive mechanism 6 via this pulley for belt drive. In practice, when the blade shaft 702 rotates under the action of the drive mechanism 6, it can generate airflow at the outlet of the housing 701. The specific shape of the blade shaft 702 can be set with reference to the shape of a conventional fan. The top of the housing 701 is provided with a downwardly inclined guide portion 7011, which is located below the first desquamation mechanism 2. The guide portion 7011 guides the material from the first desquamation mechanism 2, allowing it to slide along the inclined surface of the guide portion 7011 towards the outlet of the sorting fan 7, and also towards the end of the screen plate 302 with a lower vertical height. This prolongs the movement path and movement time of the material on the screen plate 302, aiming to achieve a better screening effect.

[0085] In summary, by introducing a sorting fan 7 into the jujube kernel shelling equipment, a transverse airflow is generated between the first shelling mechanism 2 and the screening mechanism 3, which helps to remove the lightest part of the impurities in the output of the first shelling mechanism 2, thereby further improving the screening effect and reducing the impurity content in the finished product.

[0086] It is worth noting that, regarding the jujube seed shelling device of this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 5 As shown:

[0087] A jujube seed shelling device includes a frame 1;

[0088] The first shelling mechanism 2 is located on the top of the frame 1;

[0089] The screening mechanism 3 is mounted on the frame 1 and located below the first dehulling mechanism 2;

[0090] The second shelling mechanism 4 is located at the top of the frame 1;

[0091] The feeding mechanism 5 is located on one side of the screening mechanism 3 and is used to transport the material on the screening mechanism 3 to the second dehulling mechanism 4.

[0092] The drive mechanism 6 is located at the bottom of the frame 1 and is connected to the first shelling mechanism 2 and the screening mechanism 3 respectively.

[0093] The first shelling mechanism 2 includes a first roller 201, which is fixedly mounted on the top of the frame 1;

[0094] The first rotating shaft 202 is rotatably disposed inside the first drum 201 and is driven by the drive mechanism 6 via a belt.

[0095] The second shelling mechanism 4 includes a second roller 401, which is fixedly mounted on the top of the frame 1;

[0096] The second rotating shaft 402 is rotatably disposed inside the second drum 401 and is connected to the first rotating shaft 202 by chain drive.

[0097] The diameter of the first roller 201 is larger than the diameter of the second roller 401.

[0098] The first roller 201 includes a first hopper 2011 and a first bar screen 2012. The first hopper 2011 covers the first bar screen 2012, forming a cylindrical structure for the first rotating shaft 202 to rotate.

[0099] The second roller 401 includes a second hopper 4011 and a second bar screen 4012. The second hopper 4011 covers the second bar screen 4012, forming a cylindrical structure for the second rotating shaft 402 to rotate.

[0100] The spacing between the bars of the second bar screen 4012 is smaller than that of the first bar screen 2012.

[0101] The screening mechanism 3 includes a crankshaft 301, which is rotatably mounted on the frame 1 and is driven by the drive mechanism 6 via a belt.

[0102] The sieve plate 302 is slidably tilted and mounted on the frame 1;

[0103] Connecting rod 303 is sleeved on crankshaft 301 at one end and hinged to the bottom of sieve plate 302 at the other end.

[0104] The sieve plate 302 has multiple sieve holes along its own thickness direction, and the sieve holes are semi-circular.

[0105] The upper surface of the sieve plate 302 is provided with a retaining edge, and the retaining edge has notches at the lowest and highest points in the vertical direction of the sieve plate 302.

[0106] The feed end of the feeding mechanism 5 is located below the lowest notch in the vertical direction of the screen plate 302.

[0107] Among them, the feeding mechanism 5 is a feeding fan.

[0108] It also includes a sorting fan 7, which is mounted on the frame 1, with its air outlet positioned horizontally and located between the first shelling mechanism 2 and the screening mechanism 3.

[0109] The sorting fan 7 includes a housing 701, which is rotatably mounted on the frame 1;

[0110] The blade shaft 702 is rotatably mounted inside the housing 701 and is connected to the drive mechanism 6 via belt drive.

[0111] The housing 701 has a downwardly inclined guide portion 7011.

[0112] An embodiment of the second aspect of this application provides a jujube seed production line, which includes the jujube seed shelling equipment described above.

[0113] In the jujube seed production line of this embodiment, the aforementioned jujube seed shelling equipment serves as the front-end equipment in the jujube seed production line. It can complete the removal of the hard outer shell of jujube seeds with high efficiency and a relatively thorough shelling effect. This jujube seed shelling equipment typically still uses a food industry conveyor belt, which can be installed at the front end of the jujube seed production line.

[0114] The jujube seed production line of this embodiment, by setting up the jujube seed dehulling equipment as described above, can have higher production efficiency and a more thorough dehulling effect compared to existing jujube seed production lines.

[0115] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A jujube kernel shelling device, characterized in that: Includes rack (1); The first shelling mechanism (2) is located on the top of the frame (1); The screening mechanism (3) is mounted on the frame (1) and located below the first shelling mechanism (2); The second shelling mechanism (4) is located on the top of the frame (1); A feeding mechanism (5) is provided on one side of the screening mechanism (3) for conveying the material on the screening mechanism (3) to the second deshelling mechanism (4); The drive mechanism (6) is located at the bottom of the frame (1) and is connected to the first shelling mechanism (2) and the screening mechanism (3) respectively.

2. The jujube kernel shelling device according to claim 1, characterized in that: The first shelling mechanism (2) includes a first roller (201), which is fixedly disposed on the top of the frame (1); The first rotating shaft (202) is rotatably disposed inside the first roller (201) and is driven by the drive mechanism (6) via a belt; The second shelling mechanism (4) includes a second roller (401), which is fixedly disposed on the top of the frame (1); The second rotating shaft (402) is rotatably disposed inside the second drum (401) and is connected to the first rotating shaft (202) by chain drive. The diameter of the first roller (201) is larger than the diameter of the second roller (401).

3. The jujube kernel shelling device according to claim 2, characterized in that: The first roller (201) includes a first hopper (2011) and a first bar screen (2012). The first hopper (2011) covers the first bar screen (2012) to form a cylindrical structure for the first rotating shaft (202) to rotate.

4. The jujube kernel shelling device according to claim 3, characterized in that: The second roller (401) includes a second hopper (4011) and a second bar screen (4012). The second hopper (4011) covers the second bar screen (4012) to form a cylindrical structure for the second rotating shaft (402) to rotate. The spacing between the bars of the second bar screen (4012) is smaller than the spacing between the bars of the first bar screen (2012).

5. The jujube kernel shelling device according to claim 1, characterized in that: The screening mechanism (3) includes a crankshaft (301), which is rotatably mounted on the frame (1) and is driven by the drive mechanism (6) via a belt. The sieve plate (302) is slidably inclined on the frame (1); The connecting rod (303) is sleeved on the crankshaft (301) at one end and hinged to the bottom of the sieve plate (302) at the other end.

6. The jujube kernel shelling device according to claim 5, characterized in that: The sieve plate (302) has a plurality of sieve holes along its own thickness direction, and the sieve holes are semi-circular; The upper surface of the sieve plate (302) is provided with a retaining edge, and the retaining edge has notches at both the lowest and highest points in the vertical direction of the sieve plate (302); The feeding end of the feeding mechanism (5) is located below the notch at the lowest point in the vertical direction of the sieve plate (302).

7. The jujube kernel shelling device according to claim 4, characterized in that: The feeding mechanism (5) is a feeding fan.

8. The jujube kernel shelling device according to claim 1, characterized in that: It also includes a sorting fan (7), which is mounted on the frame (1), with its air outlet arranged in a horizontal direction and located between the first shelling mechanism (2) and the screening mechanism (3).

9. A jujube kernel dehulling device according to claim 8, characterized in that: The sorting fan (7) includes a housing (701) which is rotatably mounted on the frame (1); The blade shaft (702) is rotatably disposed inside the housing (701) and is connected to the drive mechanism (6) via belt drive; The housing (701) has a downwardly inclined guide portion (7011).

10. A jujube seed production line, characterized in that: The invention includes a jujube kernel dehulling device as described in any one of claims 1 to 9.

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