Nut kernel grading and screening device

Abstract

The utility model relates to a nut kernel grading and screening device which comprises a machine frame, and a sorting mechanism is arranged on the machine frame. The sorting mechanism comprises a screen frame with the top in an opening shape, a screen bin with one end in an opening shape is fixed in the screen frame, screen holes are evenly distributed in the upper face and the lower face of the screen bin, the diameter of the screen holes in the lower side of the screen bin is smaller than that of the screen holes in the upper side of the screen bin, and an L-shaped baffle is fixed to the inner bottom wall of the screen frame. The top face of the L-shaped baffle is flush with the top face of the screen bin, a U-shaped limiting frame is fixed to the inner bottom wall of the screen frame, the bottom face of the screen bin is installed on the U-shaped limiting frame, and three fruit outlets are sequentially formed in the bottom face of the screen frame. The screening bin is arranged to be of a double-layer screening hole structure, the sizes of the two layers of screening holes are different, after nut kernels are separated through the screening bin, the screening frame is separated through the L-shaped baffle and the U-shaped limiting frame, and large, medium and small three-level nut kernels separated out through the screening bin fall out through different channels to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, in particular to a nut kernel grading and screening device. Background Art

[0002] As people's living standards improve, their eating habits are also changing. Nuts, because they contain high levels of protein, oil, minerals and vitamins, have excellent effects on human growth and development, physical fitness and disease prevention. Their rich nutritional value and medicinal value are deeply loved by people.

[0003] In the process of nut processing, nut sorting is not only one of the important links in the nut processing process, but also a relatively cumbersome process. At present, nut grading mostly involves pouring the nut kernels onto a single-layer screen, and separating the nut kernels that can pass through the screen from those that cannot. If the nut kernels need to be sorted into more levels, it is necessary to replace the screens with different aperture sizes and re-sort the nut kernels. The operation steps are relatively cumbersome, which affects the grading efficiency of the nut kernels.

[0004] Therefore, a nut kernel grading and screening device is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a nut kernel grading and screening device, which has the advantages of high screening efficiency and solves the problem of needing to replace sieves with different aperture sizes and re-sort the nut kernels when the kernels need to be sorted into more levels.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nut kernel grading and screening device, comprising a frame, on which a sorting mechanism and a driving mechanism are provided;

[0007] The sorting mechanism includes a sieve frame with an open top, a sieve bin with an open end fixed in the sieve frame, evenly distributed sieve holes on the upper and lower surfaces of the sieve bin, and the diameter of the sieve holes on the lower side of the sieve bin is smaller than the diameter of the sieve holes on the upper side of the sieve bin, an L-shaped baffle is fixed to the inner bottom wall of the sieve frame, the top surface of the L-shaped baffle is flush with the top surface of the sieve bin, a U-shaped limiting frame is fixed to the inner bottom wall of the sieve frame, the bottom surface of the sieve bin is installed on the U-shaped limiting frame, and three fruit outlets are sequentially opened on the bottom surface of the sieve frame.

[0008] Furthermore, a discharging channel is fixed at the bottom of the sieve frame, three channels are formed in the discharging channel, and the three channels are respectively connected to the three fruit outlets.

[0009] Furthermore, the driving mechanism includes a support frame fixed on the frame, a driving shaft is rotatably provided in the support frame through a bearing, an end of the driving shaft is connected to the output end of the driving motor through a belt transmission structure, an eccentric disk is fixed on the outer side of the driving shaft, a connecting rod is fixed on the eccentric disk, and the end of the connecting rod is hinged with a U-shaped seat fixed to the bottom surface of the screen frame.

[0010] Furthermore, four connecting rods are rotatably arranged on the frame via a rotating shaft, and the other ends of the four connecting rods are rotatably arranged on the screen frame via a rotating shaft.

[0011] Furthermore, a driving motor is fixed on the frame, and the end of the driving shaft is connected to the output end of the driving motor through a belt transmission structure.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The nut kernel grading and screening device sets the sieve bin as a double-layer sieve hole structure with two layers of sieve holes of different sizes. After the sieve bin separates the nut kernels, the sieve frame is separated by an L-shaped baffle and a U-shaped limit frame, so that the large, medium and small nut kernels separated by the sieve bin fall out through different channels for collection, and then the eccentric disk rotates and the connecting rod drives the sieve bin to swing, thereby effectively improving the grading efficiency of the nut kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the positions of the L-shaped baffle and the U-shaped limiting frame of the utility model;

[0016] Figure 3 This is a schematic diagram of the screen bin of the utility model;

[0017] Figure 4 This is a schematic diagram of the position of the fruit outlet of the utility model;

[0018] Figure 5 This is a schematic diagram of the discharge channel of the utility model;

[0019] Figure 6 It is a schematic diagram of the collection frame of the utility model;

[0020] Figure 7 This is a schematic diagram of the driving mechanism of the utility model;

[0021] Figure 8 It is a schematic diagram of the position of the belt transmission structure of the utility model.

[0022] In the figure: 1. frame; 2. sorting mechanism; 201. screen frame; 202. screen bin; 203. L-shaped baffle; 204. U-shaped limit frame; 205. fruit outlet; 206. discharge channel; 3. driving mechanism; 301. driving motor; 302. supporting frame; 303. driving shaft; 304. belt transmission structure; 305. eccentric disk; 306. connecting rod; 307. U-shaped seat; 308. connecting rod; 4. collecting frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-8 A nut kernel grading and screening device in this embodiment includes a frame 1, on which a sorting mechanism 2 and a driving mechanism 3 are provided. The sorting mechanism 2 can separate large nuts, medium nuts and small nuts, and the driving mechanism 3 drives the sorting mechanism 2 to operate to improve the sorting efficiency.

[0025] The frame 1 is also provided with a collecting frame 4 located below the discharge port of the sorting mechanism 2. The collecting frame 4 is divided into three spaces by partitions, and large fruits, medium fruits and small fruits can be collected respectively.

[0026] The sorting mechanism 2 includes a sieve frame 201 with an open top, a sieve bin 202 with an open end fixed in the sieve frame 201, and evenly distributed sieve holes are arranged on the upper and lower surfaces of the sieve bin 202, and the diameter of the sieve holes on the lower side of the sieve bin 202 is smaller than the diameter of the sieve holes on the upper side of the sieve bin 202, so as to facilitate the separation of nuts of three sizes: large, medium and small. An L-shaped baffle 203 is fixed to the inner bottom wall of the sieve frame 201, and the top surface of the L-shaped baffle 203 is flush with the top surface of the sieve bin 202. Nuts that cannot pass through the sieve bin 202 can be guided to the side of the sieve frame 201 through the L-shaped baffle 203. A U-shaped limiting frame 204 is fixed to the inner bottom wall of the sieve frame 201, and the bottom surface of the sieve bin 202 is installed on the U-shaped limiting frame 204, and nuts that can pass through The nuts that cannot pass through the upper sieve holes of the sieve bin 202 but cannot pass through the lower sieve holes fall into the L-shaped space of the L-shaped baffle 203 and the side of the U-shaped limiting frame 204. The bottom surface of the sieve frame 201 is provided with three fruit outlets 205 in sequence. The large fruits fall from the side of the L-shaped baffle 203 and fall out from the outer fruit outlet 205, the medium fruits pass through the upper sieve holes of the sieve bin 202 into the cavity of the sieve bin 202 and fall between the L-shaped space of the L-shaped baffle 203 and the side of the U-shaped limiting frame 204, and finally fall out from the middle fruit outlet 205, and the small fruits pass through the two layers of sieve holes of the sieve bin 202 and fall out from the inner fruit outlet 205. The two layers of sieve holes of the sieve bin 202 can separate the nuts of large, medium and small sizes.

[0027] A discharge channel 206 is fixed at the bottom of the screen frame 201 . Three channels are formed in the discharge channel 206 , and the three channels are respectively connected to the three fruit outlets 205 , so as to facilitate the introduction of the three kinds of nuts into the triple collection space of the collection frame 4 .

[0028] The screen frame 201 can also drive the screen bin 202 to shake left and right, thereby accelerating the sorting efficiency. Figure 7-8 As shown, the driving mechanism 3 includes a driving motor 301 fixed on the frame 1 and a support frame 302, a driving shaft 303 is rotatably provided in the support frame 302 through a bearing, an end of the driving shaft 303 is connected to the output end of the driving motor 301 through a belt transmission structure 304, an eccentric disk 305 is fixed to the outer side of the driving shaft 303, a connecting rod 306 is fixed on the eccentric disk 305, and the end of the connecting rod 306 is hinged with a U-shaped seat 307 fixed to the bottom surface of the screen frame 201. The output shaft of the driving motor 301 rotates, and under the transmission action of the belt transmission structure 304, the driving shaft 303 can also rotate. When the driving shaft 303 rotates, the eccentric disk 305 can drive the screen frame 201 to swing left and right through the connecting rod 306, thereby improving the sorting efficiency.

[0029] In order to enhance the stability of the screen frame 201 when it swings, four connecting rods 308 are provided on the frame 1 through the rotation of the rotating shaft, and the other ends of the four connecting rods 308 are arranged on the screen frame 201 through the rotation of the rotating shaft. When the screen frame 201 swings, the four connecting rods 308 swing simultaneously with the screen frame 201, and the connecting rods 308 can provide auxiliary support for the screen frame 201, so that the stability is stronger during movement.

[0030] By adopting the above-mentioned nut kernel grading and screening device, nut kernels of different sizes can be sorted. The specific sorting method is as follows:

[0031] Pour the nut kernels into the top surface of the sieve bin 202 of the sieve frame 201, drive the output shaft of the motor 301 to rotate, and under the transmission action of the belt drive structure 304, the drive shaft 303 rotates, and the eccentric disk 305 can drive the sieve frame 201 to swing left and right through the connecting rod 306. During the screening process, the large fruits will slide along the top surface of the sieve bin 202 to the side of the L-shaped baffle 203, and pass through the outer fruit outlet 205 and the outer channel of the discharge channel 206 to fall into the collection space outside the collection frame 4, while the medium fruits will pass through the top sieve hole of the sieve bin 202 and enter the cavity of the sieve bin 202 , and falls from the L-shaped space of the L-shaped baffle 203 and the side of the U-shaped limiting frame 204, and then falls out from the middle fruit outlet 205, and finally falls into the collecting space in the middle of the collecting frame 4 through the middle channel of the discharging channel 206 from the middle fruit outlet 205. The small fruits pass through the two layers of sieve holes in the sieve bin 202 and fall out from the inner fruit outlet 205, and finally fall into the collecting space inside the collecting frame 4 through the inner fruit outlet 205 through the inner channel of the discharging channel 206. The nut kernels of three sizes, large, medium and small, can be collected separately in the cavity of the collecting frame 4.

[0032] The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nut kernel grading and screening device, characterized in that: It comprises a frame (1), on which a sorting mechanism (2) and a driving mechanism (3) are provided; The sorting mechanism (2) comprises a sieve frame (201) with an open top, a sieve bin (202) with an open end fixed inside the sieve frame (201), the sieve bin (202) having evenly distributed sieve holes on both upper and lower surfaces, and the diameter of the sieve holes on the lower side of the sieve bin (202) is smaller than the diameter of the sieve holes on the upper side of the sieve bin (202), an L-shaped baffle (203) is fixed to the inner bottom wall of the sieve frame (201), the top surface of the L-shaped baffle (203) is flush with the top surface of the sieve bin (202), a U-shaped limiting frame (204) is fixed to the inner bottom wall of the sieve frame (201), the bottom surface of the sieve bin (202) is mounted on the U-shaped limiting frame (204), and three fruit outlets (205) are sequentially opened on the bottom surface of the sieve frame (201).

2. A nut kernel grading and screening device according to claim 1, characterized in that: A material discharging channel (206) is fixed at the bottom of the sieve frame (201), and three channels are formed in the material discharging channel (206), and the three channels are respectively connected to the three fruit outlets (205).

3. A nut kernel grading and screening device according to claim 1, characterized in that: The driving mechanism (3) comprises a support frame (302) fixed on the frame (1), a driving shaft (303) rotatably provided in the support frame (302) via a bearing, a driving motor (301) fixed on the frame (1), an end of the driving shaft (303) being connected to an output end of the driving motor (301) via a belt transmission structure (304), an eccentric disk (305) being fixed on the outer side of the driving shaft (303), a connecting rod (306) being fixed on the eccentric disk (305), and an end of the connecting rod (306) being hingedly connected to a U-shaped seat (307) fixed to the bottom surface of the screen frame (201).

4. A nut kernel grading and screening device according to claim 1, characterized in that: Four connecting rods (308) are rotatably arranged on the frame (1) via a rotating shaft, and the other ends of the four connecting rods (308) are rotatably arranged on the screen frame (201) via a rotating shaft.

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