Integrated device for walnut green husk removal and cleaning

Abstract

The patent application belongs to the technical field of shelling equipment, and particularly relates to a walnut green peel removing and cleaning integrated device, which comprises a containing cavity capable of containing multiple walnuts, and further comprises: a transmission belt which is obliquely upwardly transmitted, the lower part of the transmission belt passes through the containing cavity, and the surface of the transmission belt is provided with multiple notches capable of containing single walnuts; a first peeling mechanism and a second peeling mechanism which are sequentially arranged along the transmission direction of the transmission belt, the first peeling mechanism extrudes the walnuts in the containing cavity and pushes the walnuts into corresponding notches, and the second peeling mechanism rubs the walnuts in the notches to remove the green peels; and a flushing mechanism which flushes the walnuts in the second peeling mechanism, the transmission belt and the notches simultaneously; through the above structure, the initial extrusion type peeling is realized, the accumulated walnuts are separated by the notches and then transmitted, and the second peeling mechanism is further used, so that the peeling quality is ensured, and the green peels are easy to clean and collect.

Description

Technical Field

[0001] The invention relates to the technical field of shelling equipment, and in particular to an integrated device for removing and cleaning walnut green skin. Background Art

[0002] Walnut trees are widely planted as important timber species, ecological species and economic tree species. The green walnuts need to be peeled as soon as possible after being harvested. This not only ensures the appearance quality of the original walnuts, but also prevents the green walnuts from becoming moldy and discolored due to the color juice produced by piling up.

[0003] Existing walnut peeling equipment is divided into friction type and extrusion type. The friction type generally uses a roller to drive multiple walnuts to rotate, so that the walnuts repeatedly rub and knead with the friction strips or wire brushes on the inner wall of the equipment to complete the peeling; the extrusion type generally uses a flexible pressure plate or roller to apply pressure to the walnuts, thereby breaking the green skin.

[0004] Existing peeling equipment still has the following problems: 1. When peeling by friction and extrusion, since multiple walnuts are peeled at the same time, some walnuts may not be peeled or not completely peeled, and need to be picked out and re-peeled later, affecting the overall processing efficiency; 2. The peeling mechanism is generally inside the equipment, which is not easy to clean and collect the residual green peel. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an integrated device for removing and cleaning walnut green peels, which can peel the walnuts one by one, ensure the peeling quality, and make the green peels easy to clean and collect.

[0006] The technical solutions adopted in the present invention are as follows:

[0007] A walnut green peel removal and cleaning integrated device includes a receiving chamber capable of accommodating a plurality of walnuts, and further includes:

[0008] A conveyor belt for obliquely upward transmission, wherein the lower portion of the conveyor belt passes through the accommodating cavity, and the surface of the conveyor belt is provided with a plurality of notches capable of accommodating a single walnut;

[0009] A first peeling mechanism and a second peeling mechanism are sequentially arranged along the conveying direction of the conveyor belt, wherein the first peeling mechanism squeezes the walnuts in the accommodating cavity and pushes the walnuts into the corresponding notches, and the second peeling mechanism rubs against the walnuts in the notches to peel them;

[0010] A flushing mechanism is provided, wherein the flushing mechanism flushes the second peeling mechanism, the conveyor belt and the walnuts in the slot simultaneously.

[0011] Working principle: Put the walnuts with skin into the accommodating chamber, and the walnuts are accumulated in the accommodating chamber. When the conveyor belt and the first peeling mechanism are started, the first peeling mechanism continuously squeezes the walnuts in the accommodating chamber, so that the green skin of most walnuts is broken, and some walnuts are pushed into the slot of the conveyor belt. Since the conveyor belt is transported obliquely upward, the walnuts that have not entered the slot will roll upward due to gravity, and be squeezed and pushed by the first peeling mechanism until they enter the slot; the conveyor belt transfers the walnuts through the slot to the vicinity of the second peeling mechanism, and the remaining green skin adhered to the walnuts is scraped off by friction. While scraping, the flushing mechanism flushes to further reduce the adhesion of the green skin.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The initial extrusion-type peeling is achieved through the cooperation of the obliquely upward transmission belt, the first peeling mechanism, and the second peeling mechanism. The accumulated walnuts are separated by the notch and then transmitted, and then peeled by the second peeling mechanism, thereby avoiding the situation of unpeeled walnuts as much as possible.

[0014] 2. Since the first peeling mechanism is an extrusion-type peeling mechanism, the damaged green peel is easy to stick to the walnut. By setting the second peeling mechanism, it can be further scraped off to improve the peeling quality.

[0015] 3. During the peeling process, the second peeling mechanism, the conveyor belt and the walnuts are flushed through the flushing mechanism, so that the green peels are discharged through the second peeling mechanism, and the walnuts and the second peeling mechanism can be automatically cleaned at the same time; when the peeling work is stopped, only the first peeling mechanism itself has green peels remaining. Since the first peeling mechanism is in an open accommodating cavity, the first peeling mechanism can be directly flushed, and the remaining green peels fall onto the conveyor belt. During the next processing or when the conveyor belt is directly started, it will move with the conveyor belt to the vicinity of the second mechanism and can be cleaned using the flushing mechanism, making the overall cleaning of the device simple and convenient to collect the green peels.

[0016] As a preferred embodiment of the present invention, the notches are evenly spaced on the conveyor belt, and the first peeling mechanism includes a spiral roller driven by a motor, the lower part of the spiral roller is located between adjacent notches, and the distance between the lowest point of the spiral roller and the conveyor belt is less than the minimum height of the walnut, so that when the spiral roller rotates, it squeezes and pushes the walnut into the corresponding notch.

[0017] Beneficial effect: Due to the shape characteristics of the spiral roller and the above-mentioned height limitation, the spiral roller will push the walnuts toward the slot and continuously squeeze them to prevent the walnuts from being unable to enter the slot.

[0018] As a preferred embodiment of the present invention, the conveyor belt includes a belt body, a support plate, and two transmission rollers. The two transmission rollers drive the belt body to transmit. The support plate is located on the inner side of the upper end of the belt body and is used to support the walnuts in the slot. Both ends of the support plate are provided with arc surfaces. The transmission roller rotates along the corresponding arc surfaces. A plurality of annular grooves are evenly arranged axially on the transmission roller. Each of the annular grooves corresponds to the slot in the same column and is used to support the walnuts in the slot.

[0019] Beneficial effects:

[0020] 1. When the conveyor belt is running, the bottom of the walnut is first supported by the support plate. When the walnut passes through the transmission roller, the bottom of the walnut is supported by the annular groove and moves along the annular groove following the conveyor belt, so that the conveyor belt can always limit the walnut to a certain position.

[0021] 2. The arc surface of the support plate can limit the transmission roller, making the transmission roller run more smoothly.

[0022] As a preferred embodiment of the present invention, the spiral rollers rotate alternately back and forth.

[0023] Beneficial effect: The one-way rotation of the spiral roller will gradually concentrate the walnuts on one side of the conveyor belt. Therefore, by setting the continuous forward and reverse rotation, the walnuts are distributed more evenly, and after reciprocating extrusion, the peeling effect is better.

[0024] As a preferred embodiment of the present invention, the second peeling mechanism includes a curved plate and a scraper, the curved plate is arranged at the upper end of the conveyor belt, the scraper is fixedly connected to the curved plate and is located below the conveyor belt, and the curved plate and the scraper limit the walnuts transmitted downward;

[0025] A pressing plate is provided in the conveyor belt, and the pressing plate squeezes the walnuts being conveyed downward, so that the walnuts move closely on the scraper.

[0026] Working principle: After the walnut moves to the top with the conveyor belt, it will pass through the bend and then be transmitted downward. The walnut is no longer supported by the support plate or the transmission roller. Therefore, the arc plate and the slot are set to limit the position so that the walnut can continue to be transmitted. When the walnut passes through the pressing plate, the walnut is squeezed between the pressing plate and the scraper. The conveyor belt continues to push the walnut through the slot, which will cause friction between the surface of the walnut and the scraper. During the friction, the scraper is stuck in the green skin and is not easy to rotate. The conveyor belt pushes it to peel it. After the friction side is peeled, the extrusion force on the walnut becomes smaller, and the scraper will not be stuck in the walnut. Therefore, under the push of the conveyor belt, the walnut will rotate a certain angle and peel the other side. As the conveyor belt pushes, the entire peeling is completed. When the walnut loses the support of the scraper, it automatically falls due to gravity.

[0027] Beneficial effect: Through the mutual cooperation of the scraper, the conveyor belt and the pressure plate, the second peeling mechanism does not require additional power, and uses the driving force of the conveyor belt itself to perform peeling, which makes the peeling effect better.

[0028] As a preferred embodiment of the present invention, the scraper includes multiple groups of vertically arranged blades, the blades are alternately provided with left inclined sections and right inclined sections, and the bottom of the pressure plate is laterally spaced with multiple protrusions, which enable the walnuts to move closely on the blades.

[0029] Beneficial effects:

[0030] 1. By setting multiple groups of blades with left-inclined sections and right-inclined sections, when the conveyor belt pushes the walnuts, the walnuts will be subjected to oblique resistance, and the rolling direction of the walnuts will constantly change, making the walnuts peeled more comprehensively.

[0031] 2. Multiple sets of blades form a flow channel. When flushing by the flushing mechanism, the remaining green peel can be flushed out along the flow channel, and the cleaning effect is better.

[0032] 3. By setting the raised parts at intervals, when the walnut is on the raised part, it is subjected to greater extrusion force and is not easy to roll. When the walnut is not on the raised part, it is easy to roll. The walnut is peeled and rolled alternately, and the peeling effect is better.

[0033] As a preferred embodiment of the present invention, the scraper and the pressing plate are gradually approached from top to bottom.

[0034] Beneficial effect: Through the above arrangement, the distance between the scraper and the pressing plate is gradually reduced, thereby adapting to walnuts of different sizes and different degrees of peeling.

[0035] As a preferred embodiment of the present invention, a plurality of groups of transversely arranged tooth plates are provided in the arc-shaped plate, and the tooth plates are used to separate the green skin adhered to the walnuts.

[0036] Beneficial effect: By setting up multiple groups of transversely arranged tooth plates, the broken green peels are scraped off after the initial extrusion peeling and before the friction peeling, thereby reducing the amount of green peels entering the second peeling mechanism, reducing the workload of the second peeling mechanism, and making the second peeling mechanism less likely to be blocked.

[0037] As a preferred embodiment of the present invention, a water inlet is provided on the curved plate, and the flushing mechanism sprays water toward the bend of the conveyor belt through the water inlet. The water flow hits the bend and separates into upper and lower parts to flush the curved plate and scraper.

[0038] Beneficial effects:

[0039] 1. Through the above flushing method, the curved plate, conveyor belt and scraper can be flushed at the same time by utilizing the curved part of the conveyor belt, so that the second peeling mechanism is not easily blocked.

[0040] 2. During the flushing process, as long as there is enough water pressure, the water flow can make the walnuts in the second peeling mechanism be under the raised part, and the green skin adhering to the side of the walnuts will be washed off. When the walnuts are not under the raised part, the walnuts can be rotated to a certain extent, so that the next flushing position / friction position will be changed. Alternating multiple flushing and friction peeling ensures the peeling quality.

[0041] As a preferred embodiment of the present invention, a discharge outlet for discharging green peels is vertically opened at one end of the arc-shaped plate close to the scraper.

[0042] Beneficial effect: by setting the discharge outlet, part of the green peel on the conveyor belt can be discharged through the discharge outlet, so that the second peeling mechanism is not easily blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 2. It is a schematic structural diagram of an integrated device for removing and cleaning walnut green peels according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic structural diagram of the first peeling mechanism in the integrated walnut green peel removal and cleaning device according to an embodiment of the present invention;

[0045] Figure 3 This is a cross-sectional perspective view of an integrated device for removing and cleaning walnut green skin according to an embodiment of the present invention;

[0046] Figure 4 2. It is a structural schematic diagram of the second peeling mechanism in the integrated walnut green peel removal and cleaning device according to an embodiment of the present invention;

[0047] Figure 5 It is a cross-sectional view of an integrated device for removing and cleaning walnut green peels according to an embodiment of the present invention.

[0048] The figure marks include: support frame 1, conveyor belt 2, slot 21, belt body 22, support plate 23, transmission roller 24, annular groove 25, arc limit block 26, pressure plate 27, protrusion 28, accommodating chamber 3, first peeling mechanism 4, second peeling mechanism 5, arc plate 51, water inlet 511, outlet 512, tooth plate 52, scraper 53, left inclined section 531, right inclined section 532, flushing mechanism 6. DETAILED DESCRIPTION

[0049] Typical embodiments that embody the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations are intended to be illustrative rather than limiting.

[0050] In the description of this application, the terms "first", "second", etc. are only used to facilitate the description of this application and simplify the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on this application.

[0051] See also Figure 1 As shown, the integrated device for removing and cleaning walnut green skin disclosed in this embodiment includes a support frame 1 and a conveyor belt 2. The conveyor belt 2 is obliquely installed on the support frame 1. A plurality of plates are also installed on the support frame 1 to form a receiving cavity 3 around the bottom of the conveyor belt 2. Walnuts can be poured into the receiving cavity 3 for stacking. Notches 21 are evenly spaced on the conveyor belt 2. Walnuts entering the notches 21 can move upward with the conveyor belt 2. Walnuts that do not enter the notches 21 will fall back into the receiving cavity 3 after being lifted to a certain height.

[0052] Among them, see Figure 2 As shown, the conveyor belt 2 includes a belt body 22, a support plate 23, and two transmission rollers 24. The two transmission rollers 24 drive the belt body 22 to transmit. The support plate 23 is located on the inner side of the upper end of the belt body 22 and is used to support the walnuts in the slot 21. Both ends of the support plate 23 are provided with arc surfaces. The transmission rollers 24 rotate along the corresponding arc surfaces. A plurality of annular grooves 25 are evenly arranged axially on the transmission rollers 24. Each of the annular grooves 25 corresponds to the slot 21 in the same column and is used to support the walnuts in the slot 21. When the conveyor belt 2 is running, the bottom of the walnut is first supported by the support plate 23. When the walnut passes through the transmission roller 24, the bottom of the walnut is supported by the annular groove 25 and moves along the annular groove 25 following the conveyor belt 2, so that the conveyor belt 2 can always limit the walnut to a certain extent.

[0053] Among them, see Figure 3 As shown, arc-shaped limit blocks 26 are provided at both ends of the support plate 23 in the corresponding annular grooves 25. The arc-shaped limit blocks 26 cooperate with the annular grooves 25 to make the transmission roller 24 run more smoothly and can scrape off the green peel remaining in the annular grooves 25.

[0054] See also Figure 1 and Figure 2 As shown, the integrated walnut peel removal and cleaning device also includes a first peeling mechanism 4, which includes a spiral roller driven by a motor. Both ends of the spiral roller are rotatably installed in the accommodating chamber 3, and the lower parts of the spiral rollers are located between adjacent notches 21. The distance between the lowest point of the spiral roller and the conveyor belt 2 is less than the minimum height of the walnut, so that when the spiral roller rotates, it squeezes and pushes the walnut into the corresponding notch 21; due to the shape characteristics of the spiral roller and the above-mentioned height limit, the spiral roller will push the walnut into the notch 21 and continuously squeeze it to prevent the walnut from being unable to enter the notch 21.

[0055] Among them, the motor that drives the spiral roller adopts a servo motor (frequent forward and reverse rotation will cause the stepper motor to lose steps). The servo motor periodically drives the spiral roller to rotate forward and reverse; the unidirectional rotation of the spiral roller will cause the walnuts to gradually concentrate on one side of the conveyor belt 2. Therefore, by setting continuous forward and reverse rotation, the walnuts are distributed more evenly, and after reciprocating extrusion, the peeling effect is better.

[0056] See also Figure 3 and Figure 4 As shown, the walnut green peel removal and cleaning integrated device also includes a second peeling mechanism 5, which includes an arc-shaped plate 51. The arc-shaped plate 51 is arranged at the upper end of the conveyor belt 2. The arc-shaped plate 51 limits the walnuts transmitted downward. A plurality of groups of transversely arranged tooth plates 52 are provided in the arc-shaped plate 51. The tooth plates 52 are used to separate the green peels adhered to the walnuts. By providing a plurality of groups of transversely arranged tooth plates 52, the broken green peels are scraped off before friction peeling after the initial extrusion peeling, thereby reducing the amount of green peels entering the second peeling mechanism 5.

[0057] It also includes a scraper 53, which is fixedly connected to the arc plate 51 and is located below the conveyor belt 2. A pressure plate 27 is provided in the conveyor belt 2. The pressure plate 27 squeezes the walnuts being transported downward so that the walnuts move close to the scraper 53. Through the mutual cooperation of the scraper 53, the conveyor belt 2 and the pressure plate 27, the second peeling mechanism 5 does not require additional power, and uses the driving force of the conveyor belt 2 itself for peeling, which makes the peeling effect better.

[0058] Among them, see Figure 3 As shown, the scraper 53 and the pressing plate 27 gradually approach each other from top to bottom; the scraper 53 includes multiple groups of vertically arranged blades, and the blades are alternately provided with left inclined sections 531 and right inclined sections 532. The bottom of the pressing plate 27 is provided with multiple protrusions 28 at intervals, and the protrusions 28 enable the walnuts to move closely on the blades; through the above arrangement, the distance between the scraper 53 and the pressing plate 27 is gradually reduced, so as to adapt to walnuts of different sizes and different degrees of peeling; by providing the protrusions 28 arranged at intervals, when the walnut is on the protrusion 28, it is subjected to greater extrusion force and is not easy to roll, and when it is not on the protrusion 28, it is easy to roll. The walnuts are alternately peeled and rolled, and the peeling effect is better.

[0059] Among them, see Figure 3As shown, the lowest point of the pressing plate 27 is lower than the lowest point of the scraper 53, so that the walnuts lose the support of the scraper 53 first. At this time, the walnuts are still squeezed downward by the pressing plate 27, making it easy for the walnuts to fall off, avoiding the walnuts from being retained in the slots 21 through the green skin residue; in other embodiments, a plurality of elastic squeezing blocks can be set at the bottom of the pressing plate 27, each elastic squeezing block corresponding to the same horizontal row of slots 21, pushing out the green skin and walnuts in the slots 21 to achieve cleaning of the slots, and a belt conveyor can be set under the elastic squeezing block to transfer the peeled walnuts to the next process.

[0060] See also Figure 5 As shown (the unnumbered arrow in the figure indicates the flow direction of the water flow), the walnut green skin removal and cleaning integrated device also includes a flushing mechanism 6, the curved plate 51 is provided with a water inlet 511, the flushing mechanism 6 adopts a water distributor, and the water distributor is laterally arranged with a plurality of nozzles arranged in the water inlet 511, and water is sprayed to the bend of the conveyor belt 2 through the water inlet 511. After the water flow hits the bend, it separates up and down to flush the curved plate 51 and the scraper 53; the curved plate 51 is close to the scraper One end of 53 is vertically provided with a discharge outlet 512 for discharging the green peel (the width of the discharge outlet 512 should be smaller than the minimum diameter of the walnut after peeling to prevent the walnut from falling); the end of the curved plate 51 close to the scraper 53 is vertically provided with a discharge outlet 512 for discharging the green peel; through the above-mentioned flushing method, the curved plate 51, the conveyor belt 2, and the scraper 53 can be flushed at the same time by utilizing the bending part of the conveyor belt 2, and part of the green peel on the conveyor belt 2 is discharged through the discharge outlet 512, so that the second peeling mechanism 5 is not easily blocked.

[0061] The working principle and usage of this embodiment are as follows:

[0062] The walnuts to be peeled are sent to the accommodating chamber 3, and the conveyor belt 2, the first peeling mechanism 4 and the flushing mechanism 6 are started. The spiral roller in the first peeling mechanism 4 continuously squeezes the walnuts in the accommodating chamber 3, so that the green skins of most walnuts are broken, and some walnuts are pushed into the notch 21 of the conveyor belt 2 and supported by the bottom support plate 23. Since the conveyor belt 2 is transported obliquely upward, the walnuts that have not entered the notch 21 will roll upward due to gravity and be squeezed and pushed by the first peeling mechanism 4 until they enter the notch 21;

[0063] The conveyor belt 2 transfers the walnuts to the vicinity of the curved plate 51 through the notch 21, and then transfers them downward after passing through the bend. The walnuts are no longer supported by the support plate 23 or the transmission roller 24. Therefore, the curved plate 51 and the notch 21 are used to limit the position of the walnuts, so that the walnuts can continue to be transferred. During the transfer process, the tooth plate 52 scrapes off the broken green peels, reducing the amount of green peels entering the second peeling mechanism 5.

[0064] When the walnuts pass through the pressing plate 27, they are squeezed between the pressing plate 27 and the scraper 53. The conveyor belt 2 continues to push the walnuts through the notch 21, causing friction between the surface of the walnut and the scraper 53. During the friction, the scraper 53 is stuck in the green skin and is not easy to rotate. The conveyor belt 2 pushes the walnuts to peel them. After the skin on the rubbed side is peeled, the squeezing force on the walnuts becomes smaller, and the scraper 53 will not be stuck in the walnuts. Therefore, under the push of the conveyor belt 2, the walnuts will rotate a certain angle and peel the other side. As the conveyor belt 2 pushes, the whole peeling is completed.

[0065] While peeling, water is sprayed toward the bend of the conveyor belt 2 through the water inlet 511. The water hits the bend and separates into two parts, washing the curved plate 51 and the scraper 53, thereby reducing the residual green peel inside the device and the green peel attached to the surface of the walnut.

[0066] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A walnut green peel removal and cleaning integrated device, comprising a receiving chamber capable of accommodating a plurality of walnuts, characterized in that: Also includes: A conveyor belt for obliquely upward transmission, wherein the lower portion of the conveyor belt passes through the accommodating cavity, and the surface of the conveyor belt is provided with a plurality of notches capable of accommodating a single walnut; A first peeling mechanism and a second peeling mechanism are sequentially arranged along the conveying direction of the conveyor belt, wherein the first peeling mechanism squeezes the walnuts in the accommodating cavity and pushes the walnuts into the corresponding notches, and the second peeling mechanism rubs against the walnuts in the notches to peel them; a flushing mechanism, which simultaneously flushes the second peeling mechanism, the conveyor belt, and the walnuts in the slot; The second peeling mechanism includes a curved plate and a scraper, the curved plate is arranged at the upper end of the conveyor belt, the scraper is fixedly connected to the curved plate and is located below the conveyor belt, and the curved plate and the scraper limit the walnuts transmitted downward; A pressing plate is provided in the conveyor belt, and the pressing plate presses the walnuts being conveyed downward, so that the walnuts move closely on the scraper; The scraper includes multiple groups of vertically arranged blades, each of which is alternately provided with left and right inclined sections. The bottom of the pressing plate is provided with multiple raised portions at intervals in the horizontal direction, and the raised portions enable the walnut to move closely against the blades. The scraper and the pressing plate gradually approach each other from top to bottom; The curved plate is provided with a water inlet, and the flushing mechanism sprays water toward the bend of the conveyor belt through the water inlet. The water flow hits the bend and separates up and down to flush the curved plate and the scraper. The notches are evenly spaced on the conveyor belt, and the first peeling mechanism includes a spiral roller driven by a motor, the lower portion of each spiral roller is located between adjacent notches, and the distance between the lowest point of the spiral roller and the conveyor belt is less than the minimum height of the walnut, so that when the spiral roller rotates, it squeezes and pushes the walnut into the corresponding notch; The spiral rollers rotate back and forth alternately; The arc-shaped plate is provided with a plurality of groups of transversely arranged tooth plates, and the tooth plates are used to separate the green skin adhered to the walnuts; An outlet for discharging green peels is vertically opened at one end of the arc-shaped plate close to the scraper.

2. The integrated walnut peel removal and cleaning device according to claim 1, characterized in that: The conveyor belt includes a belt body, a support plate, and two transmission rollers. The two transmission rollers drive the belt body for transmission. The support plate is located on the inner side of the upper end of the belt body and is used to support the walnuts in the slot. Both ends of the support plate are provided with arc surfaces. The transmission roller rotates along the corresponding arc surfaces. A plurality of annular grooves are evenly arranged axially on the transmission roller. Each annular groove corresponds to a slot in the same row and is used to support the walnuts in the slot.

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