Ultrasonic walnut shell breaking and kernel taking device

Abstract

The utility model relates to the technical field of walnut processing, and discloses a walnut ultrasonic shell breaking and kernel taking device which comprises a rack, and a walnut conveying mechanism, a walnut shell breaking mechanism and a material collecting mechanism which are arranged on the rack, the walnut conveying mechanism is used for driving the falling walnuts to move and conveying the walnuts to the walnut shell breaking mechanism; the walnut shell breaking mechanism drives walnuts to move and extrudes and breaks shells of the walnuts through ultrasonic high-frequency vibration; and the material collecting mechanism is used for screening and collecting the walnut kernels and the walnut shells after shell breaking. Through the walnut conveying mechanism, the walnut shell breaking mechanism and the material collecting mechanism, the process of walnut conveying, extrusion shell breaking and recovery is achieved, ultrasonic waves are applied to the field of walnut shell breaking, Yunnan walnuts are hard in shell and small in shell-kernel gap, the characteristics that high-frequency vibration under the mechanical effect of the ultrasonic waves is suitable for breaking of hard and brittle materials are utilized, walnut shell breaking is assisted, and the walnut shell breaking efficiency is improved. The shell breaking rate and the whole kernel rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of walnut primary processing, and more specifically, to a walnut ultrasonic shell breaking and kernel taking device. Background Art

[0002] As the first step in the initial deep processing of walnuts, shelling and kernel extraction plays an important role in the smooth development of subsequent walnut processing and the improvement of walnut economic added value. Yunnan walnut production is huge, but the processing rate is not high. Most of them are sold in the form of raw fruits, which makes the economic added value of walnuts almost zero. In addition, selling raw fruits also increases their storage and transportation costs. China's walnut production has ranked first in the world in recent years, and Yunnan's walnut production ranks first in China. Not only because walnut kernels have high edible and medicinal value, but also the industrial value of walnut shells is increasingly prominent.

[0003] The rapid development of the walnut industry has also increased the requirements for walnut processing. The current types of processing equipment are increasing, but it is difficult to take into account the processing cost, processing efficiency, broken kernel rate and finished product edible standards of walnuts at the same time. In addition, the existing machines are not suitable for Yunnan walnut varieties, and the broken kernel rate is relatively high. At present, Yunnan walnut processing mainly adopts the method of manual smashing and manual selection. Although the walnut kernel integrity rate obtained by this method is relatively good, its cost is high and efficiency is low, which is also the reason why the price of walnut kernels sold on the market is relatively high. Summary of the invention

[0004] The utility model aims to provide a walnut ultrasonic shelling and kernel extraction device to solve the technical problems existing in the prior art, which can improve the one-time shelling rate of walnuts and reduce the kernel breakage rate during the shelling process of walnuts, and has a simple and reliable structure.

[0005] In order to solve the above problems, the technical solution adopted by this novel invention is:

[0006] The utility model provides a walnut ultrasonic shelling and kernel extraction device, comprising a frame, a walnut conveying mechanism arranged on the frame, a walnut shelling mechanism, and a material collecting mechanism;

[0007] The walnut conveying mechanism is used to drive the fallen walnuts to move and transport them to the walnut shelling mechanism; the walnut shelling mechanism drives the walnuts conveyed by the walnut conveying mechanism to move, and squeezes and shells the walnuts through ultrasonic high-frequency vibration; the material collecting mechanism is used to screen and collect the walnut kernels and walnut shells after shelling.

[0008] Further, the walnut conveying mechanism includes a conveying cover body arranged on the frame, a driving sprocket group, a chain, a driven sprocket group, a transmission roller group and a conveying reduction motor arranged in the conveying cover body;

[0009] The transmission reduction motor is connected to the driving sprocket group, and the driving sprocket group and the driven sprocket group are arranged opposite to each other; a chain connection is correspondingly arranged between the driving sprocket group and the driven sprocket group, and a transmission roller group is sequentially arranged between the two adjacent groups of chains for transmitting walnuts.

[0010] Furthermore, the transmission roller group includes a plurality of rollers arranged in sequence along the movement direction of the chain, each group of rollers can rotate, and the axis of each group of rollers is perpendicular to the movement direction of the chain.

[0011] Furthermore, an introduction block is obliquely arranged at the end of the conveying cover body, a conveying groove is arranged on the introduction block, and the conveying groove corresponds to the surface of the driving roller group.

[0012] Furthermore, the walnut shelling mechanism comprises a shelling frame arranged on a frame, a shelling pressing plate arranged on the shelling frame, an upper roller group, a shelling reduction motor, an ultrasonic component and a lower roller group;

[0013] At least two groups of shell breaking plates are arranged opposite to each other on the shell breaking frame, and a shell breaking space is formed between adjacent shell breaking plates; an upper roller group and a lower roller group are arranged opposite to each other on both sides of the shell breaking plate, and the upper roller group and the lower roller group are respectively connected to the shell breaking reduction motor and correspond to the position of the shell breaking space; the ultrasonic component is connected to the shell breaking plate, and is used to drive the shell breaking plate to perform ultrasonic vibration to squeeze the walnuts.

[0014] Furthermore, the upper roller group and the lower roller group respectively include a plurality of soft rollers that simulate swallowing, and the movement directions of the two groups of soft rollers in the upper roller group and the lower roller group are opposite.

[0015] Furthermore, the sizes of the two groups of soft rollers in the upper roller group and the lower roller group gradually increase along the movement direction of the walnut.

[0016] Furthermore, the walnut shelling mechanism also includes a plurality of rubber synchronous belts, and adjacent rubber synchronous belts are staggered and connected to corresponding soft rollers.

[0017] Furthermore, the spacing between adjacent shell breaking plates gradually decreases along the movement direction of the walnuts.

[0018] Furthermore, the ultrasonic component includes an ultrasonic power supply and an ultrasonic transducer connected to each other, and the ultrasonic transducer is connected to the shell breaking pressure plate.

[0019] Compared with the prior art, the beneficial effects of this novel technology are:

[0020] (1) The novel device realizes the process of walnut conveying, extruding and shelling, and recycling through a walnut conveying mechanism, a walnut shelling mechanism, and a material collecting mechanism, and applies ultrasound to the field of walnut shelling. The shell of Yunnan walnut is hard and the gap between the shell and the kernel is small. The high-frequency vibration under the mechanical effect of ultrasound is suitable for the characteristics of hard and brittle material cracking, and assists in walnut shelling, thereby improving the shell breaking rate and kernel wholeness rate. Although the amplitude of ultrasound is very small, the particle acceleration caused by ultrasound is very large. In this way, crack propagation is assisted, thereby achieving the purpose of using a smaller extrusion force to achieve a better shelling effect. The overall structure is simple, the function is reliable, and it is easy to implement.

[0021] (2) The present invention can greatly improve the integrity of the kernel of Yunnan walnuts after shelling, that is, the walnut shelling mechanism uses ultrasound to break the shell, and the ultrasonic vibration amplitude is only a few microns. Ultrasonic vibration is applied while squeezing, so that the walnut shell is fatigue-broken and the walnut kernel is less damaged; the walnut shelling mechanism can also realize walnut transportation, that is, it uses silicone soft rollers, by setting appropriate gaps and staggered arrangements, and then transports the shelled walnuts and the cracked walnuts forward without damaging the unshelled walnuts and walnut kernels.

[0022] (3) The novel walnut shelling mechanism realizes ultrasonic shelling and squeezing of walnuts by arranging relatively fixed shelling pressure plates opposite to each other and by continuously reducing the gap between adjacent shelling pressure plates, thereby reducing the movement of the walnut shelling mechanism and the influence of ultrasonic vibration on the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the scheme of the utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0024] Figure 1 This is a structural diagram of the new walnut ultrasonic shell breaking and kernel extraction device.

[0025] Figure 2 This is a structural diagram of the new walnut conveying mechanism.

[0026] Figure 3 This is a structural diagram of the new walnut shelling mechanism.

[0027] Figure 4 The figure is a schematic diagram of the principle of the novel walnut conveying mechanism and walnut shelling mechanism.

[0028] Figure 5 It is a schematic diagram of walnut swallowing in the novel walnut shelling mechanism.

[0029] Figure 6This is the principle diagram of ultrasonic vibration of the new shell breaking plate.

[0030] Figure 7 This is the schematic diagram of the ultrasonic component in this new model.

[0031] Explanation of the accompanying drawings: 1-walnut conveying mechanism, 2-walnut shelling mechanism, 3-material collecting mechanism, 4-frame, 11-driving sprocket, 12-chain, 13-driven sprocket, 14-roller, 15-transmission shaft, 16-conveying reduction motor, 17-conveying cover, 18-introduction block, 181-conveying trough, 21-shell breaking pressure plate, 22-upper roller group, 23-first rubber synchronous belt, 24-second rubber synchronous belt, 25-shell breaking reduction motor, 26-ultrasonic transducer, 27-ultrasonic power supply, 28-shell breaking frame, 29-lower roller group. DETAILED DESCRIPTION

[0032] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0033] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In the specification and claims of the present invention and the above-mentioned drawings, when an element is referred to as "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as "connected to" another element, it may be directly or indirectly connected to the other element.

[0034] In addition, the reference to "embodiment" herein means that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0035] It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] See also Figure 1 As shown, the present invention provides a walnut ultrasonic shelling and kernel extraction device, comprising a frame 4, a walnut conveying mechanism 1 arranged on the frame 4, a walnut shelling mechanism 2, and a material collecting mechanism 3.

[0037] The walnut conveying mechanism 1 is used to drive the fallen walnuts to move and transport the walnuts to the walnut shelling mechanism 2; the walnut shelling mechanism 2 drives the walnuts conveyed by the walnut conveying mechanism 1 to move, and squeezes and shells the walnuts through ultrasonic high-frequency vibration; the material collecting mechanism 3 is used to screen and collect the walnut kernels and walnut shells after shelling.

[0038] Specifically, the length of the entire device is 1600 mm, the width is 620 mm, and the height is 1080 mm. The various mechanisms (i.e., the walnut conveying mechanism 1, the walnut shelling mechanism 2, and the material collecting mechanism 3) are connected through an aluminum profile frame 4 to form the entire device. The overall structure is compact and the layout is reasonable.

[0039] As attached Figure 2 As shown, the walnut conveying mechanism 1 includes a conveying cover 17, a driving sprocket group 11, a chain 12, a driven sprocket group 13, a transmission roller group, a transmission shaft 15 and a conveying reduction motor 16 arranged in the conveying cover 17, and the conveying cover 17 is arranged on the frame 4;

[0040] The transmission reduction motor 16 is connected to the driving sprocket group 11 through the transmission shaft 15, and the driving sprocket group 11 and the driven sprocket group 13 are arranged oppositely and in parallel; a chain 12 is correspondingly arranged between the driving sprocket group 11 and the driven sprocket group 13 for transmission cooperation, and a transmission roller group is sequentially arranged between the two adjacent groups of chains 12 to realize the transmission of the fallen walnuts.

[0041] Furthermore, the transmission roller group includes a plurality of rollers 14 arranged in sequence along the movement direction of the chain 12. Each group of rollers 14 can rotate on its own, and the axis of each group of rollers 14 is perpendicular to the movement direction of the chain 12. This makes it convenient for two adjacent groups of rollers 14 to clamp the walnuts and drive the walnuts to move in the direction of the walnut shelling mechanism 2.

[0042] Furthermore, an introduction block 18 is provided at the end of the transmission cover 17, and a transmission groove 181 is provided on the introduction block 18, and the transmission groove 181 corresponds to the surface of the transmission roller group, so as to facilitate the introduction of walnuts and drive the walnuts to move. Specifically, the introduction block 18 is tilted, that is, the angle between the transmission groove 181 and the movement direction of the chain 12 is 0° to 90°, which can improve the transmission efficiency of the introduction block 18, that is, the walnuts can be easily introduced to the surface of the transmission roller group.

[0043] In this embodiment, the walnut conveying mechanism 1 is composed of a basic structure of two groups of sprocket chains with a rotatable roller sandwiched in the middle. The power is provided by a transmission reduction motor 16, and the driving sprocket group 11 is driven to rotate at the same speed through the transmission shaft 15, so that the chain 12 moves forward and also drives the driven sprocket group 13 to rotate. While the roller is transmitted with the chain 12, it also rolls due to the friction between the walnut and the roller 14 of the transmission roller group drives the walnut forward and also realizes the turning of the walnut, so that the end line of the walnut is perpendicular to the movement direction of the chain 14.

[0044] As attached Figure 3 As shown, the walnut shelling mechanism 2 includes a shelling frame 28 ( Figure 1 As shown in ), a shell breaking plate 21, an upper roller group 22, a shell breaking reduction motor 25, an ultrasonic component, and a lower roller group 29 are arranged on the shell breaking frame 28, and the shell breaking frame 28 is arranged on the frame 4;

[0045] At least two groups of shell breaking plates 21 are relatively arranged on the shell breaking frame 28, and a shell breaking space is formed between adjacent shell breaking plates 21. The spacing between adjacent shell breaking plates 21 matches the walnut, and the walnut falls into the shell breaking space to be clamped; an upper roller group 22 and a lower roller group 29 are relatively arranged on both sides of the shell breaking plate 21, and the upper roller group 22 and the lower roller group 29 are respectively connected to the shell breaking reduction motor 25, and correspond to the position of the shell breaking space, driving the walnut to move forward; the ultrasonic component is connected to the shell breaking plate 21, driving the shell breaking plate 21 to perform ultrasonic vibration, so as to compress the walnut and crack the shell.

[0046] Furthermore, the upper roller group 22 and the lower roller group 29 respectively include a plurality of soft rollers that simulate swallowing, and the movement directions of the two groups of soft rollers in the upper roller group 22 and the lower roller group 29 are opposite. The sizes of the two groups of soft rollers in the upper roller group 22 and the lower roller group 29 gradually increase along the movement direction of the walnut, so that the gap between the upper roller group 22 and the lower roller group 29 gradually decreases along the movement direction of the walnut.

[0047] Furthermore, the walnut shelling mechanism 2 also includes a plurality of rubber synchronous belts, and adjacent rubber synchronous belts are staggered and connected to corresponding soft rollers to facilitate the forward movement of the walnuts.

[0048] Specifically, taking the rubber synchronous belt connected to one side of the upper roller group 22 as an example, multiple first rubber synchronous belts 23 and second rubber synchronous belts 24 are staggered and partially connected in sequence along the movement direction of the walnut, the first rubber synchronous belt 23 connects the soft roller b and the soft roller c, the second rubber synchronous belt 24 connects the soft roller c and the soft roller d, and so on; similarly, the rubber synchronous belt connected to one side of the lower roller group 29 is also staggered and partially connected, which can simulate the muscle movement during swallowing and can also reliably drive the walnut to move forward.

[0049] Furthermore, the spacing between adjacent shell breaking plates 21 gradually decreases along the movement direction of the walnuts, and the range of the spacing is 34mm to 40mm, which can adapt to walnuts of different sizes, thereby improving the shell breaking efficiency of the walnuts; specifically, the spacing between adjacent shell breaking plates 21 can be 34mm, 36mm, 38mm, or 40mm.

[0050] In this embodiment, the transport part in the walnut conveying mechanism 2 simulates the muscle movement during swallowing, and the walnuts are driven to move by the soft rollers arranged alternately in the upper roller group 22 and the lower roller group 29. When the walnut mechanism 2 is running, the shell breaking reduction motor 25 works, driving the rollers in the upper roller group 22 to rotate counterclockwise, and the rollers in the lower roller group 29 to rotate clockwise, thereby simulating the muscle movement of swallowing to drive the walnuts forward; the spacing between the upper roller group 22 and the lower roller group 29 is 32mm, and the diameter of the soft roller can be gradually increased from 30mm to 32mm.

[0051] As attached Figure 6 As shown, the ultrasonic component includes an ultrasonic power supply 27 and an ultrasonic transducer 26 connected to each other. The ultrasonic transducer 26 is connected to the shell-breaking pressing plate 21. The shell-breaking pressing plate 21 is stimulated by the ultrasonic transducer 26 to vibrate at a high frequency, so that the symmetrically arranged shell-breaking pressing plates 21 produce high-frequency extrusion on the walnuts in the shell-breaking space to achieve shell-breaking. Figure 7 shown.

[0052] Specifically, the ultrasonic vibration frequency is about 20kHz, and the amplitude is about 2 to 4um, which can reliably excite the ultrasonic shell-breaking platen to vibrate at high frequency, thereby causing the symmetrically arranged shell-breaking platen to produce high-frequency extrusion on the walnuts, causing the walnuts to crack, thereby ensuring the reliability of the device.

[0053] The walnut ultrasonic shell breaking and kernel extraction device provided by the present invention has the following specific working process:

[0054] As attached Figure 4As shown, the walnuts enter the walnut conveying mechanism 1 from the feeding mechanism, that is, enter the conveying groove 181 of the introduction block 18 to realize the conveying and turning of the walnuts. During the walnut conveying process, the roller 14 in the transmission roller group moves with the driving sprocket group 11, the driven sprocket group 13 and the chain 12 to realize the forward transportation of the walnuts. At the same time, the tip and the navel of the walnut are respectively directed to the two sides of the device through the self-rotation of the roller 14.

[0055] After the walnut is transmitted and enters the walnut shell breaking mechanism 2, the walnut enters the shell breaking space between the two shell breaking pressing plates 21 and is clamped, and the shell breaking reduction motor 25 drives the upper roller group 22 and the lower roller group 29 to move, simulating the muscle movement during swallowing, applying certain pressure to the walnut by the rotation of the soft roller but not destroying the walnut, relying on the friction of this process, continuing to drive the walnut to move forward. Because the shell breaking pressing plates 21 arranged symmetrically on both sides of the walnut are connected to the ultrasonic assembly, the gap between the shell breaking pressing plates 21 is gradually reduced as the walnut advances, and the walnuts of different sizes are clamped. In addition, the shell breaking pressing plates 21 are connected to the ultrasonic assembly, and the shell breaking pressing plates 21 are driven by the ultrasonic transducer 26 to carry out ultrasonic vibration, along with the entry of the walnut in the shell breaking space, respectively realize that the walnuts of different sizes are carried out to ultrasonic vibration extrusion shell breaking, and the shell breaking action of the walnut is completed.

[0056] The separated walnut shells and kernels continue to be transported and enter the material collecting mechanism 3 to collect the preliminarily shelled walnuts and enter the screening mechanism for shell-kernel separation.

[0057] The novel embodiment utilizes the characteristics of ultrasonic high-frequency vibration, and the amplitude of ultrasonic vibration is only a few microns. The walnuts are squeezed and ultrasonically vibrated at the same time, so that the walnut shells are fatigued and broken with less damage to the walnut kernels. The high-frequency vibration under the mechanical effect of ultrasound is used to assist in the cracking of walnut shells, so as to achieve the purpose of minimizing the damage to the walnut kernels while squeezing the walnut shells, thereby improving the one-time shelling rate of walnuts.

[0058] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention shall be equivalent replacement methods and shall be included in the protection scope of the present invention.

Claims

1. A walnut ultrasonic shell breaking and kernel extraction device, characterized in that: It includes a frame, a walnut conveying mechanism, a walnut shelling mechanism, and a material collecting mechanism arranged on the frame. The walnut conveying mechanism is used to drive the fallen walnuts to move and transport them to the walnut shelling mechanism; the walnut shelling mechanism drives the walnuts conveyed by the walnut conveying mechanism to move, and squeezes and shells the walnuts through ultrasonic high-frequency vibration; the material collecting mechanism is used to screen and collect the walnut kernels and walnut shells after shelling.

2. The walnut ultrasonic shell breaking and kernel extraction device according to claim 1 is characterized in that: The walnut conveying mechanism comprises a conveying cover body arranged on the frame, a driving sprocket group, a chain, a driven sprocket group, a transmission roller group and a conveying reduction motor arranged in the conveying cover body; The transmission reduction motor is connected to the driving sprocket group, and the driving sprocket group and the driven sprocket group are arranged opposite to each other; a chain connection is correspondingly arranged between the driving sprocket group and the driven sprocket group, and a transmission roller group is sequentially arranged between the two adjacent groups of chains for transmitting walnuts.

3. The walnut ultrasonic shell breaking and kernel extraction device according to claim 2 is characterized in that: The transmission roller group includes a plurality of rollers arranged in sequence along the moving direction of the chain, each group of rollers can rotate, and the axis of each group of rollers is perpendicular to the moving direction of the chain.

4. The ultrasonic walnut shelling and kernel extraction device according to claim 2 is characterized in that: An introduction block is obliquely arranged at the end of the conveying cover body, and a conveying groove is arranged on the introduction block, and the conveying groove corresponds to the surface of the driving roller group.

5. The walnut ultrasonic shell breaking and kernel extraction device according to any one of claims 1 to 4, characterized in that: The walnut shelling mechanism comprises a shelling frame arranged on a frame, a shelling pressing plate arranged on the shelling frame, an upper roller group, a shelling reduction motor, an ultrasonic component and a lower roller group; At least two groups of shell breaking plates are arranged opposite to each other on the shell breaking frame, and a shell breaking space is formed between adjacent shell breaking plates; an upper roller group and a lower roller group are arranged opposite to each other on both sides of the shell breaking plate, and the upper roller group and the lower roller group are respectively connected to the shell breaking reduction motor and correspond to the position of the shell breaking space; the ultrasonic component is connected to the shell breaking plate, and is used to drive the shell breaking plate to perform ultrasonic vibration to squeeze the walnuts.

6. The ultrasonic walnut shelling and kernel extraction device according to claim 5, characterized in that: The upper roller group and the lower roller group respectively include a plurality of soft rollers that simulate swallowing, and the movement directions of the two groups of soft rollers in the upper roller group and the lower roller group are opposite.

7. The ultrasonic walnut shelling and kernel extraction device according to claim 6, characterized in that: The sizes of the two groups of soft rollers in the upper roller group and the lower roller group gradually increase along the moving direction of the walnut.

8. The ultrasonic walnut shelling and kernel extraction device according to claim 5, characterized in that: The walnut shelling mechanism also includes a plurality of rubber synchronous belts, and adjacent rubber synchronous belts are staggered and connected to corresponding soft rollers.

9. The ultrasonic walnut shelling and kernel extraction device according to claim 5, characterized in that: The spacing between adjacent shell breaking pressing plates gradually decreases along the moving direction of the walnuts.

10. The ultrasonic walnut shelling and kernel extraction device according to any one of claims 5 to 9, characterized in that: The ultrasonic component comprises an ultrasonic power supply and an ultrasonic transducer connected to each other, and the ultrasonic transducer is connected to the shell breaking pressing plate.

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