Melon seed shelling and screening device

Abstract

The melon seed shelling and screening device comprises an air pipe supported by a support, one end of the air pipe communicates with an air box, the other end of the air pipe communicates with a separation box, and the top of the air pipe communicates with a shelling bin; the separation box is further communicated with the winnowing box; the bottom conveying end of the winnowing box is further connected with the screening bed. The shelling bin is connected with the motor through the first transmission device. By arranging the air pipe, the air box and the separation box, the air box and the separation box are connected to the two ends of the air pipe, melon seeds hulled by the hulling bin are accelerated in the air pipe through air blown by the fan of the air box and then collide with the separation box, melon seed kernels which are not completely separated from melon seed shells after hulling are separated from the shells through collision, and therefore the hulling rate is increased. According to the device, through cooperative use of the structures, the defect that after traditional melon seeds are shelled, part of melon seed kernels are still bonded with melon seed shells or embedded in the melon seed shells, and consequently the shelling rate of the melon seed kernels is low is overcome.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural and sideline product processing, and in particular to a melon seed shelling and screening device. Background Art

[0002] Pumpkin seeds are the seeds of the annual climbing vine pumpkin of the Cucurbitaceae family. They are harvested in summer and autumn when the fruits are ripe, the seeds are removed, dried, and ground into powder for main use. Fresh ones are preferred. The seeds contain 16.4% oil, of which the main fatty acids are linoleic acid, oleic acid, palmitic acid and stearic acid, as well as linolenic acid and myristic acid. They also contain lipid components, including triglycerides, triacylglycerols, monoacylcholine, phosphatidylethanolamine, phosphatidylserine, cerebrosides, etc.

[0003] Before processing pumpkin seeds, it is often necessary to shell the pumpkin seeds to obtain pumpkin seed kernels. The existing methods for shelling pumpkin seeds mainly include extrusion shelling and rubbing shelling. However, in this shelling method, after shelling, some pumpkin seed kernels are still adhered to or embedded in the pumpkin seed shell, resulting in a low pumpkin seed kernel shelling rate. Utility Model Content

[0004] The present application provides a melon seed shelling and screening device, which is used to solve the problem of low melon seed kernel shelling rate caused by part of the melon seed kernels still adhering to or embedded in the melon seed shell after shelling the melon seeds in the existing melon seed shelling device.

[0005] The present application provides a melon seed shelling and screening device, comprising an air duct supported by a bracket, one end of the air duct being connected to a bellows, the other end being connected to a separation box, and the top of the air duct being connected to a shelling bin;

[0006] The separation box is also connected to the air separation box;

[0007] The bottom feeding end of the air separation box is also connected to the screening bed;

[0008] The shelling bin is connected with the motor through a first transmission device.

[0009] Optionally, a feeding hopper is provided on the top of the shelling bin;

[0010] A pair of rubbing rollers rotatably connected to the shelling bin are installed in the shelling bin, the rubbing rollers include an active roller and a driven roller, and the active roller is connected to the power output end of the motor through a first transmission device;

[0011] The active roller is connected to the gearbox through a second transmission device, and the gearbox is connected to the driven roller.

[0012] Optionally, a first axial flow fan is provided in the wind box;

[0013] A first dustproof net is installed on a side of the bellows away from the air duct.

[0014] Optionally, the separation box includes a housing;

[0015] A lining plate is arranged on a side surface of the shell body facing the output end of the air duct.

[0016] Optionally, a second axial flow fan is installed at one end of the air separation box, and the other end is open;

[0017] A material discharge inclined plate is arranged at the bottom of the air separation box, and the output end of the material discharge inclined plate is connected to one end of the screening bed.

[0018] Optionally, the screening bed comprises a screen layer and a receiving layer from top to bottom;

[0019] The screen layer includes a screen and a first frame for fixing the screen, the end of the screen away from the air separation box is connected to the first material discharge chute, and the end of the screen away from the air separation box is lower than the end close to the air separation box;

[0020] A vibrator is installed on the side of the first frame;

[0021] The receiving layer includes a receiving plate with a certain inclination angle, and a second frame for fixing the receiving plate;

[0022] One end of the receiving plate close to the wind separation box is higher than the other end away from the wind separation box, and the end of the receiving plate away from the wind separation box is connected to a second material discharge chute;

[0023] The screen layer and the receiving layer are supported by a plurality of legs; the screen layer is movably connected to the legs;

[0024] A limit block is arranged on the supporting leg, and an elastic buffer structure is arranged between the limit block and the screen layer.

[0025] Optionally, the first transmission device is a pulley or a sprocket.

[0026] The present application provides a melon seed shelling and screening device, which is provided with an air duct and a bellows and a separation box connected at both ends of the air duct, and the melon seeds shelled in the shelling bin are accelerated in the air duct by the wind blown by the fan of the bellows and then hit in the separation box, and the melon seed kernels that have not been completely separated from the melon seed shells after shelling are separated from the shells by impact, so as to improve the shelling rate. The device of the present application overcomes the disadvantage that after the traditional melon seeds are shelled, part of the melon seed kernels are still adhered to or embedded in the melon seed shells, resulting in a low melon seed kernel shelling rate through the use of the above-mentioned structure. In addition, the device of the present application is also provided with a screening bed to screen the melon seed kernels after the melon seed kernels and the melon seed shells are separated by the air separation box, thereby improving the screening efficiency of the melon seed kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the front view of a melon seed shelling and screening device provided in one embodiment of the present application;

[0029] Figure 2 A schematic diagram of the three-dimensional structure of a melon seed shelling and screening device provided in one embodiment of the present application;

[0030] Figure 3 A schematic diagram of the structure of a shelling bin provided in one embodiment of the present application;

[0031] Figure 4 A schematic diagram of the three-dimensional structure of a wind box and a wind selection box provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of the three-dimensional structure of a separation box provided in one embodiment of the present application;

[0033] Figure 6 A schematic diagram of the main structure of a screening bed provided in one embodiment of the present application;

[0034] Figure 7 A schematic diagram of the three-dimensional structure of a screening bed provided in one embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Bracket; 2. Air duct; 3. Bellows; 4. Separation box; 5. Shelling bin; 6. Air separation box; 7. Screening bed; 8. Motor; 31. First axial flow fan; 32. First dust screen; 41. Shell; 42. Lining plate; 51. Feeding hopper; 52. Rubbing roller; 61. Second axial flow fan; 62. Discharging inclined plate; 71. Screen layer; 72. Receiving layer; 73. Support leg; 74. Limit block; 521. Active roller; 522. Moving roller; 523. Gearbox; 711. Screen; 712. First frame; 713. First discharging chute; 714. Vibrator; 721. Receiving plate; 722. Second frame; 723. Second discharging chute; 741. Elastic buffer structure. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0038] like Figure 1 and Figure 2 As shown, the present application provides a melon seed shelling and screening device, comprising an air duct 2 supported by a bracket 1, one end of the air duct 2 is connected to a bellows 3, the other end is connected to a separation box 4, and the top of the air duct 2 is connected to a shelling bin 5;

[0039] The separation box 4 is also connected to the air separation box 6;

[0040] The bottom feeding end of the air separation box 6 is also connected to the screening bed 7;

[0041] The shelling bin 5 is connected to the motor 8 via a first transmission device.

[0042] The shell of pumpkin seeds is softer than that of other melon seeds and is more suitable for the solution of the present application. The present application takes the shelling of pumpkin seeds as an example. When the device of the present application is in use, the starting motor 8 drives the shelling component of the shelling bin 5 through the first transmission device (such as a pulley or a sprocket) to work, and the melon seeds are rubbed and shelled.

[0043] The shelled melon seeds fall from the shelling bin 5 into the air duct 2, and the fan in the bellows 3 is turned on to blow the melon seeds and accelerate them, so that the melon seeds collide with the separation box 4 after being output from the air duct 2, and the melon seed kernels that cannot be completely separated from the melon seed shells after rubbing and shelling are separated from the shells by collision. The melon seed shells and melon seed kernels separated by collision in the separation box 4 fall into the air separation box 6 for air separation.

[0044] During the air separation, the fan in the air separation box 6 is started to air separate the falling melon seed shells and melon seed kernels. The lighter melon seed shells are blown away and discharged from one end of the air separation box 6, while the heavier melon seed kernels fall and fall from the bottom of the air separation box 6 into the screening bed 7 for screening.

[0045] The shelled melon seed kernels are sorted according to their sizes in the screening bed 7, and the sorted melon seed kernels are collected respectively according to their sizes, thus completing the screening process of the melon seed kernels.

[0046] The present application provides a melon seed shelling and screening device, which is provided with an air duct 2 and a bellows 3 and a separation box 4 connected at both ends of the air duct 2, and the melon seeds after shelling in the shelling bin 5 are accelerated in the air duct 2 by the wind blown by the fan of the bellows 3 and then hit in the separation box 4, so that the melon seed kernels that cannot be completely separated from the melon seed shell after shelling are separated from the shell by impact, so as to improve the shelling rate. The device of the present application overcomes the disadvantage that after the traditional melon seeds are shelled, part of the melon seed kernels are still adhered to the melon seed shell or embedded in the melon seed shell, resulting in a low melon seed kernel shelling rate through the use of the above structure. In addition, the device of the present application is also provided with a screening bed 7 to screen the melon seed kernels after the melon seed kernels and the melon seed shells are separated by the air separation box 6, thereby improving the screening efficiency of the melon seed kernels.

[0047] like Figure 2 and Figure 3 As shown, optionally, a hopper 51 is provided on the top of the shelling bin 5;

[0048] A pair of rubbing rollers 52 rotatably connected to the shelling bin 5 are installed in the shelling bin 5, and the rubbing rollers 52 include an active roller 521 and a driven roller 522, and the active roller 521 is connected to the power output end of the motor 8 through a first transmission device;

[0049] The active roller 521 is connected to the gearbox 523 via a second transmission device, and the gearbox 523 is connected to the driven roller 522 .

[0050] In the present application, when in use, the starting motor 8 drives the active roller 521 to rotate through the first transmission device (such as a pulley or a sprocket), and the active roller 521 transmits power to the gearbox 523 through the second transmission device (such as a gear), and the gearbox 523 then transmits the power after the speed change to the driven roller 522, so that a speed difference is generated between the driven roller 522 and the active roller 521. At this time, the melon seeds to be shelled are added from the feeding hopper 51 at the top of the shelling bin 5. Due to the speed difference between the active roller 521 and the driven roller 522 (the material of the active roller 521 and the driven roller 522 in the present application is rubber or other soft materials), the melon seeds will be rubbed and torn, thereby removing the melon seed shells.

[0051] The gearbox 523 plays a role of speed change, so that a speed difference is generated between the active roller 521 and the driven roller 522, so that the melon seeds are rubbed and shelled; the second transmission device is a gear.

[0052] like Figure 4 As shown, optionally, a first axial flow fan 31 is provided in the wind box 3;

[0053] A first dustproof net 32 ​​is installed on a side of the wind box 3 away from the wind duct 2 .

[0054] In the present application, a first dustproof net 32 ​​is installed on a side of the wind box 3 away from the air duct 2 to prevent foreign impurities from being sucked into the first axial flow fan 31 when the first axial flow fan 31 is working, thereby affecting the normal operation of the first axial flow fan 31.

[0055] like Figure 5 As shown, optionally, the separation box 4 includes a housing 41;

[0056] A lining plate 42 is disposed on a side of the housing 41 facing the output end of the air duct 2 .

[0057] In the present application, the lining plate 42 is provided to protect the inner wall of the shell 41. In one practicable manner, a protrusion for strengthening the impact is provided on the surface of the lining plate, and the shape of the protrusion can be spherical, pyramidal or long.

[0058] like Figure 4 As shown, optionally, a second axial flow fan 61 is installed at one end of the air separation box 6, and the other end is open;

[0059] A material discharge inclined plate 62 is provided at the bottom of the air separation box 6 , and an output end of the material discharge inclined plate 62 is connected to one end of the screening bed 7 .

[0060] When in use, the second axial flow fan 61 is started to air-select the falling melon seed shells and melon seed kernels, and the light melon seed shells are blown away and discharged from the open end of the air-selection box 6, while the heavy melon seed kernels fall and fall from the discharge inclined plate 62 at the bottom of the air-selection box 6 into the screening bed 7 for screening. A second dust-proof net is also provided on one end face of the air-selection box 6 away from the open end.

[0061] like Figure 6 and Figure 7 As shown, optionally, the screening bed 7 includes a screen layer 71 and a receiving layer 72 from top to bottom;

[0062] The screen layer 71 includes a screen 711 and a first frame 712 for fixing the screen 711. The end of the screen 711 away from the air separation box 6 is connected to the first material discharge chute 713. The end of the screen 711 away from the air separation box 6 is lower than the end close to the air separation box 6.

[0063] A vibrator 714 is installed on the side of the first frame 712;

[0064] The receiving layer 72 includes a receiving plate 721 with a certain inclination angle, and a second frame 722 for fixing the receiving plate 721;

[0065] One end of the receiving plate 721 close to the air separation box 6 is higher than the other end away from the air separation box 6, and the other end of the receiving plate 721 away from the air separation box 6 is connected to the second material discharge chute 723;

[0066] The screen layer 71 and the receiving layer 72 are supported by a plurality of legs 73; the screen layer 71 is movably connected to the legs 73;

[0067] A limiting block 74 is provided on the supporting leg 73 , and an elastic buffer structure 741 is provided between the limiting block 74 and the screen layer 71 .

[0068] In the present application, the screen layer 71 is provided with multiple layers to play the role of multi-specification screening, and the elastic buffer structure 741 is used to buffer the vibration generated when the vibrator 714 is working. The elastic buffer structure 741 can be a spring or an elastic rubber block. In an achievable manner, a gauze is provided on the periphery of the space between adjacent screen layers 71 to prevent the melon seeds from spilling out during vibration. The limit block 74 is used to support and limit the elastic buffer structure 741.

[0069] When in use, the vibrator 714 installed on the first frame 712 is started to make the screen layer 71 vibrate up and down, and the melon seeds smaller than the screen 711 will fall into the next screen or the receiving layer 72. Since the screen 711 is set at an angle, the melon seeds during the vibration process will move to the end away from the air separation box 6. When the melon seeds move to the output end, the screened melon seeds in the screen layer 71 will fall into the first discharge chute 713 and be output; and the melon seeds that fall into the receiving layer 72 will fall into the second discharge chute 723 and be output.

[0070] Optionally, the first transmission device is a pulley or a sprocket.

[0071] In the present application, a pulley or a sprocket is used as the first transmission device to effectively transmit the power output by the motor 8.

[0072] A melon seed shelling and screening device, the working process of which is as follows:

[0073] When in use, the starting motor 8 drives the active roller 521 to rotate through the first transmission device (such as a pulley or a sprocket), and the active roller 521 transmits power to the gearbox 523 through the second transmission device (such as a gear), and the gearbox 523 then transmits the power after the speed change to the driven roller 522, so that a speed difference is generated between the driven roller 522 and the active roller 521. At this time, the melon seeds to be shelled are added from the feeding hopper 51 on the top of the shelling bin 5. Due to the speed difference between the active roller 521 and the driven roller 522 (the material of the active roller 521 and the driven roller 522 in this application is rubber or other soft materials), the melon seeds will be rubbed and torn, thereby removing the melon seed shells.

[0074] After being rubbed and peeled by the rubbing roller 52, the melon seeds fall into the air duct 2. At this time, the first axial flow fan 31 is turned on to use wind to blow and accelerate the melon seeds, so that the melon seeds collide with the lining plate 42 in the separation box 4 after being output from the air duct 2, and the melon seed kernels that have not been completely separated from the melon seed shells after being rubbed and peeled by the rubbing roller 52 are separated from the shells by collision. The melon seed shells and melon seed kernels separated by collision in the separation box 4 fall into the air separation box 6 for air separation.

[0075] During the air separation, the second axial flow fan 61 is started to air separate the falling melon seed shells and melon seed kernels. The lighter melon seed shells are blown away and discharged from the open end of the air separation box 6, while the heavier melon seed kernels fall and fall from the discharge inclined plate 62 at the bottom of the air separation box 6 into the screening bed 7 for screening.

[0076] When screening is carried out in the screening bed 7, the vibrator 714 installed on the first frame 712 is started to make the screen layer 71 vibrate up and down, and the melon seeds smaller than the screen 711 will fall into the next screen layer or the receiving layer 72. Since the screen 711 is set at an angle, the melon seeds during the vibration process will move to the end away from the air separation box 6. When the melon seeds move to the output end, the screened melon seeds in the screen layer 71 will fall into the first discharge chute 713 and be output; and the melon seeds that fall into the receiving layer 72 will fall into the second discharge chute 723 and be output.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A melon seed shelling and screening device, characterized in that: It comprises an air duct (2) supported by a bracket (1), one end of the air duct (2) is connected to a wind box (3), the other end is connected to a separation box (4), and the top of the air duct (2) is connected to a shelling bin (5); The separation box (4) is also connected to the air separation box (6); The bottom feeding end of the air separation box (6) is also connected to the screening bed (7); The shelling bin (5) is connected to a motor (8) via a first transmission device.

2. The melon seed shelling and screening device according to claim 1, characterized in that: A feeding hopper (51) is provided on the top of the shelling bin (5); A pair of rubbing rollers (52) rotatably connected to the shelling bin (5) are installed in the shelling bin (5), the rubbing rollers (52) comprising a driving roller (521) and a driven roller (522), the driving roller (521) being connected to the power output end of the motor (8) via a first transmission device; The active roller (521) is connected to a gearbox (523) via a second transmission device, and the gearbox (523) is connected to a driven roller (522).

3. The melon seed shelling and screening device according to claim 1, characterized in that: A first axial flow fan (31) is arranged in the wind box (3); A first dustproof net (32) is installed on a side of the wind box (3) away from the air duct (2).

4. The melon seed shelling and screening device according to claim 1, characterized in that: The separation box (4) comprises a shell (41); A lining plate (42) is provided on a side surface of the housing (41) facing the output end of the air duct (2).

5. The melon seed shelling and screening device according to claim 1, characterized in that: A second axial flow fan (61) is installed at one end of the air separation box (6), and the other end is open; A material discharge inclined plate (62) is provided at the bottom of the air separation box (6), and an output end of the material discharge inclined plate (62) is connected to one end of the screening bed (7).

6. The melon seed shelling and screening device according to claim 1, characterized in that: The screening bed (7) comprises a screen layer (71) and a receiving layer (72) from top to bottom; The screen layer (71) comprises a screen (711) and a first frame (712) for fixing the screen (711); one end of the screen (711) away from the air separation box (6) is connected to a first material discharge chute (713); the end of the screen (711) away from the air separation box (6) is lower than the end close to the air separation box (6); A vibrator (714) is installed on the side of the first frame (712); The receiving layer (72) comprises a receiving plate (721) having a certain inclination angle, and a second frame (722) for fixing the receiving plate (721); One end of the receiving plate (721) close to the air separation box (6) is higher than the other end away from the air separation box (6), and the other end of the receiving plate (721) away from the air separation box (6) is connected to a second material discharge chute (723); The screen layer (71) and the receiving layer (72) are supported by a plurality of legs (73); the screen layer (71) is movably connected to the legs (73); A limit block (74) is provided on the supporting leg (73), and an elastic buffer structure (741) is provided between the limit block (74) and the screen layer (71).

7. The melon seed shelling and screening device according to any one of claims 1 to 6, characterized in that: The first transmission device is a pulley or a sprocket.

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