Device for classifying and screening melon seeds

Abstract

The utility model discloses a device for classifying and screening melon seeds, and relates to the technical field of melon seed screening, the device for classifying and screening melon seeds comprises a shell and a conveying device, the conveying device is located under the shell, a first discharge hopper is welded on the top surface of the shell, and a second discharge hopper is welded on the top surface of the shell. A second discharging hopper is welded to one side of the shell. According to the device for classifying and screening the melon seeds, three classifications of the melon seeds can be achieved, the third-level melon seeds are automatically discharged through the third discharging hopper, the first-level melon seeds and the second-level melon seeds still stay in the inner shell, the rotating mechanism, the first discharging hopper, the second discharging hopper and the third discharging hopper are matched, and therefore the melon seeds can be classified and screened. According to the melon seed conveying device, melon seeds of different levels can be separated and fall into the conveying device to be conveyed, workers do not need to manually clean first-level seeds and second-level seeds which are large in size, the working efficiency is high, and the workload of the workers can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of melon seed screening, in particular to a device for grading and screening melon seeds. Background Technique

[0002] There are many types of melon seeds, including watermelon seeds, pumpkin seeds, Hami melon seeds, and melon seeds, etc. Melon seeds need to be screened to obtain seeds of different grades, usually three grades, namely first-grade melon seeds (plump, large in size), second-grade melon seeds (plump, medium in size), and third-grade melon seeds (small in size, defective products).

[0003] At present, most of the screening of melon seeds uses multi-stage sieve meshes (or sieve plates, usually containing two different sizes of filter holes) for screening. The first-grade melon seeds stay on the upper sieve mesh, the second-grade melon seeds stay on the lower sieve mesh, and the third-grade melon seeds pass through the two sieve meshes and fall into the collection box (which can be automatically collected). However, the first-grade and second-grade melon seeds on the two sieve meshes need to be manually cleaned (manually poured into the collection box), resulting in low work efficiency and increased work burden on the staff. Content of the Utility Model

[0004] The utility model provides a device for grading and screening melon seeds, which has the advantages of automatic discharge and high work efficiency, so as to solve the problems put forward in the background technique.

[0005] To solve the defect that the existing device for grading and screening melon seeds needs to manually clean the first-grade and second-grade melon seeds, the utility model provides the following technical solution: A device for grading and screening melon seeds, including a housing and a conveying device, the conveying device is located directly below the housing, a first discharge hopper is welded to the top surface of the housing, a second discharge hopper is welded to one side of the housing, a third discharge hopper is welded to the bottom end of the housing, a feed hopper is welded above the front surface of the housing, a rotating mechanism is provided on the front surface of the housing, an inner housing is provided inside the housing, a pair of sliding card slots are opened on both inner side walls of the inner housing, and a sieve plate is clamped between each pair of sliding card slots. A shaking mechanism is provided between the inner housing and the housing, and discharge insertion hoppers are welded to the top surface, bottom surface, and one side of the inner housing.

[0006] As a preferred technical solution of the utility model, the shaking mechanism includes a pair of bottom plates integrally connected to both inner side walls of the housing, a plurality of pneumatic vibrators are fixedly installed on the top surface of the bottom plates, a plurality of elastic telescopic columns are connected between the top plates integrally connected to both sides of the inner housing and the bottom plates, and the top surface of the pneumatic vibrator is in contact with the bottom surface of the top plate.

[0007] As a preferred technical solution of the present utility model, the three discharge hoppers are respectively inserted into the first discharge hopper, the second discharge hopper and the third discharge hopper, and a distance is maintained between the outer wall of the discharge hopper and the inner walls of the first discharge hopper, the second discharge hopper and the third discharge hopper.

[0008] As a preferred technical solution of the present utility model, the rotating mechanism includes a support, a base is fixedly connected between the support and the transportation device, a hydraulic cylinder is fixedly installed on the top surface of the base, a toothed plate is fixedly installed on the top surface of the hydraulic cylinder, a toothed roller is meshed and connected to one side of the toothed plate, the rear end of the toothed roller is fixedly connected to the front end of the housing, and the front end of the toothed roller is rotatably connected to the back surface of the support by a bearing.

[0009] As a preferred technical solution of the present utility model, a circular cover plate is fixedly installed on the back surface of the housing by bolts, a plurality of first springs are welded on the front inner wall of the housing and the front side of the circular cover plate, a sealing circular plate is fixedly connected between the plurality of first springs, a plurality of slots are opened on one side of the sealing circular plate close to the first springs, and a plurality of insertion posts are welded on the front surface of the circular cover plate and the front inner wall of the housing, and each insertion post is correspondingly inserted into the slot.

[0010] As a preferred technical solution of the present utility model, two annular chutes are opened on the outer wall of the housing, a support sliding plate is slidably connected to the annular chute, and the support sliding plate is fixedly installed on the top surface of the transportation device.

[0011] Compared with the prior art, the present utility model provides a device for grading and screening melon seeds, and has the following beneficial effects:

[0012] 1. For the device for grading and screening melon seeds, the two sieve plates provided can divide the inner shell into three areas, so that three grades of melon seeds can be realized. The third-grade melon seeds automatically discharge through the third discharge hopper, while the first-grade and second-grade melon seeds still stay in the inner shell. At this time, the rotating mechanism drives the housing to rotate. At this time, the second discharge hopper faces downward, and the automatic discharge of the second-grade melon seeds can be realized. The first discharge hopper faces downward, and the automatic discharge of the first-grade melon seeds can be realized. Since the first discharge hopper, the second discharge hopper and the third discharge hopper adopt a staggered structure, the discharged first-grade, second-grade and third-grade melon seeds will not contact each other and separately fall into the transportation device for transportation. There is no need for staff to manually clean the large-sized first-grade and second-grade seeds, the work efficiency is high, and the work burden of the staff can be effectively reduced.

[0013] 2. The device for grading and screening melon seeds uses a clamping connection method for the sieve plate. In combination with a circular cover plate, a first spring, a sealing circular plate, a slot, and a plug post, it can achieve the sealing and fixation of the sieve plate and also facilitate the replacement of the sieve plate, thereby enabling the screening of other types of melon seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a side view of the present utility model;

[0016] Figure 3 is a schematic structural view of the inner shell of the present utility model;

[0017] Figure 4 is a partial side view cross-sectional view of the circular cover plate of the present utility model.

[0018] In the figure:

[0019] 10. Outer shell; 20. Transport device; 30. First discharge hopper; 40. Second discharge hopper; 50. Third discharge hopper; 60. Feed hopper; 70. Rotating mechanism; 71. Support; 72. Base; 73. Hydraulic cylinder; 74. Rack; 75. Gear roller; 80. Inner shell; 90. Sliding card slot; 100. Sieve plate; 200. Jitter mechanism; 210. Bottom plate; 220. Pneumatic vibrator; 230. Top plate; 300. Discharge insertion hopper; 400. Circular cover plate; 410. First spring; 420. Sealing circular plate; 430. Slot; 440. Plug post; 500. Annular chute; 510. Support sliding plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, the utility model discloses a device for grading and screening melon seeds, which includes a housing 10 and a conveying device 20. The conveying device 20 is located directly below the housing 10. A first discharge hopper 30 is welded to the top surface of the housing 10, a second discharge hopper 40 is welded to one side of the housing 10, and a third discharge hopper 50 is welded to the bottom end of the housing 10. The opening of the first discharge hopper 30 is at the rear, the opening of the second discharge hopper 40 is in the middle, and the opening of the third discharge hopper 50 is at the front. When discharging melon seeds, they can be discharged onto the conveying device 20 in a staggered manner. Above the front of the housing 10, a feed hopper 60 is welded. A rotating mechanism 70 is provided on the front of the housing 10. An inner housing 80 is provided inside the housing 10. A pair of sliding clamping grooves 90 are opened on the inner side walls of both sides of the inner housing 80. A sieve plate 100 is clamped between each pair of sliding clamping grooves 90. A shaking mechanism 200 is provided between the inner housing 80 and the housing 10. Discharge insertion hoppers 300 are welded to the top surface, bottom surface, and one side of the inner housing 80.

[0022] Specifically, the shaking mechanism 200 includes a pair of bottom plates 210 integrally connected to the inner side walls of both sides of the housing 10. A plurality of pneumatic vibrators 220 are fixedly installed on the top surface of the bottom plates 210. On both sides of the inner housing 80, top plates 230 are integrally connected. A plurality of elastic telescopic columns are connected between the top plates 230 and the bottom plates 210. The top surface of the pneumatic vibrator 220 is in contact with the bottom surface of the top plate 230. The three discharge insertion hoppers 300 are respectively inserted into the first discharge hopper 30, the second discharge hopper 40, and the third discharge hopper 50, and there is a spacing between the outer wall of the discharge insertion hopper 300 and the inner walls of the first discharge hopper 30, the second discharge hopper 40, and the third discharge hopper 50.

[0023] In this embodiment, when the pneumatic vibrator 220 is started, it can continuously drive the inner housing 80 to shake up and down, thereby realizing the function of screening melon seeds;

[0024] The elastic telescopic columns can realize the elastic connection function of the inner housing 80. It is an existing structure, composed of a sleeve, a second spring, and a connecting sliding column;

[0025] There is a spacing between the outer wall of the discharge insertion hopper 300 and the inner walls of the first discharge hopper 30, the second discharge hopper 40, and the third discharge hopper 50, which avoids affecting the normal shaking of the inner housing 80 and does not affect the normal discharge of melon seeds.

[0026] Specifically, the rotating mechanism 70 includes a support 71. A base 72 is fixedly connected between the support 71 and the conveying device 20. A hydraulic cylinder 73 is fixedly installed on the top surface of the base 72. A toothed plate 74 is fixedly installed on the top surface of the hydraulic cylinder 73. A toothed roller 75 is meshed and connected to one side of the toothed plate 74. The rear end of the toothed roller 75 is fixedly connected to the front end of the housing 10. The front end of the toothed roller 75 is rotatably connected to the back surface of the support 71 through a bearing.

[0027] In this embodiment, the housing 10 can be driven to rotate, so that the positions of the first discharge hopper 30 and the second discharge hopper 40 can be adjusted, thereby realizing the automatic discharge of primary melon seeds and secondary melon seeds.

[0028] Specifically, a circular cover plate 400 is fixedly installed on the back side of the shell 10 by bolts, and a plurality of first springs 410 are welded to the front inner wall of the shell 10 and the front side of the circular cover plate 400, a sealing circular plate 420 is fixedly connected between the plurality of first springs 410, and a plurality of slots 430 are provided on the side of the sealing circular plate 420 close to the first springs 410, and a plurality of plug posts 440 are welded to the front side of the circular cover plate 400 and the front inner wall of the shell 10, and each plug post 440 is inserted into a corresponding slot 430.

[0029] In this embodiment, the sieve plate 100 and the inner shell 80 are elastically squeezed, so that the sieve plate 100 can be fixed by clamping, and when the inner shell 80 shakes up and down, the sealing circular plate 420 is always attached to the inner shell 80 and the sieve plate 100, and the sealing performance is good. After the rear circular cover plate 400 is removed, the sieve plate 100 loses its limit and can be drawn out from the sliding card slot 90, and a suitable sieve plate 100 can be replaced, so that different types of melon seeds can be screened;

[0030] The front side of the front sealing circular plate 420 is provided with a long feed opening, which cooperates with the feed hopper 60 to facilitate the melon seeds on the feed hopper 60 to enter the inner shell 80 for subsequent screening.

[0031] Specifically, two annular slide grooves 500 are provided on the outer wall of the housing 10 , and a supporting slide plate 510 is slidably connected to the annular slide groove 500 . The supporting slide plate 510 is fixedly installed on the top surface of the transportation device 20 .

[0032] In this embodiment, the housing 10 is rotatably connected and has a good supporting effect, which can effectively improve the stability of the housing 10 when rotating.

[0033] Working principle and usage process of the present utility model: The elevator transports the melon seeds to be screened to the feed hopper 60. The melon seeds pass through the feed long opening and fall into the inner shell 80 (located on the upper sieve plate 100, and the sieve holes of the upper sieve plate 100 are larger than those of the lower sieve plate 100). Under the continuous vibration of the pneumatic vibrator 220, the entire inner shell 80 and the two sieve plates 100 vibrate up and down together. At this time, the first-class melon seeds stay on the upper sieve plate 100, the second-class melon seeds stay on the lower sieve plate 100, and the third-class melon seeds fall into the transportation device 20 (at the front position) through the third discharge hopper 50. Then, the hydraulic cylinder 73 is started, and the toothed plate 74 moves upward, driving the toothed roller 75 to rotate. At this time, the outer shell 10 rotates in reverse, and the second discharge hopper 40 is positioned downward. The second-class melon seeds are discharged onto the transportation device 20 (at the middle position) through the second discharge hopper 40. Then, the first discharge hopper 30 is positioned downward, and at this time, the first-class melon seeds are discharged onto the transportation device 20 (at the rear position) through the first discharge hopper 30. The hydraulic cylinder 73 retracts and resets, and at this time, the outer shell 10 rotates forward and resets.

[0034] It should be noted that in this text, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for grading and screening melon seeds, characterized in that: It includes a housing (10) and a conveying device (20). The conveying device (20) is located directly below the housing (10). A first discharge hopper (30) is welded to the top surface of the housing (10). A second discharge hopper (40) is welded to one side of the housing (10). A third discharge hopper (50) is welded to the bottom end of the housing (10). A feed hopper (60) is welded above the front surface of the housing (10). A rotating mechanism (70) is provided on the front surface of the housing (10). An inner housing (80) is provided inside the housing (10). A pair of sliding card slots (90) are formed on the inner side walls of both sides of the inner housing (80). A sieve plate (100) is clamped between each pair of sliding card slots (90). A shaking mechanism (200) is provided between the inner housing (80) and the housing (10). Discharge insertion hoppers (300) are welded to the top surface, bottom surface and one side of the inner housing (80).

2. The device for grading and screening melon seeds according to claim 1, characterized in that: The shaking mechanism (200) includes a pair of bottom plates (210) integrally connected to the inner side walls of both sides of the housing (10). A plurality of pneumatic vibrators (220) are fixedly installed on the top surface of the bottom plates (210). Top plates (230) are integrally connected to both sides of the inner housing (80). A plurality of elastic telescopic columns are connected between the top plates (230) and the bottom plates (210). The top surface of the pneumatic vibrator (220) is in contact with the bottom surface of the top plate (230).

3. The device for grading and screening melon seeds according to claim 1, characterized in that: The three discharge insertion hoppers (300) are respectively inserted into the first discharge hopper (30), the second discharge hopper (40) and the third discharge hopper (50), and there is a gap between the outer wall of the discharge insertion hopper (300) and the inner walls of the first discharge hopper (30), the second discharge hopper (40) and the third discharge hopper (50).

4. The device for grading and screening melon seeds according to claim 1, characterized in that: The rotating mechanism (70) includes a support (71). A base (72) is fixedly connected between the support (71) and the conveying device (20). A hydraulic cylinder (73) is fixedly installed on the top surface of the base (72). A toothed plate (74) is fixedly installed on the top surface of the hydraulic cylinder (73). A toothed roller (75) is meshed and connected to one side of the toothed plate (74). The rear end of the toothed roller (75) is fixedly connected to the front end of the housing (10). The front end of the toothed roller (75) is rotatably connected to the back surface of the support (71) through a bearing.

5. The device for grading and screening melon seeds according to claim 1, wherein: A circular cover plate (400) is fixedly installed on the back surface of the housing (10) by bolts. A plurality of first springs (410) are welded to the front side inner wall of the housing (10) and the front side of the circular cover plate (400). A sealing circular plate (420) is fixedly connected between the plurality of first springs (410). A plurality of slots (430) are formed on the side of the sealing circular plate (420) close to the first springs (410). A plurality of insertion posts (440) are welded to the front surface of the circular cover plate (400) and the front inner wall of the housing (10). Each insertion post (440) is correspondingly inserted into the slot (430).

6. The device for grading and screening melon seeds according to claim 1, characterized in that: Two annular sliding grooves (500) are formed in the outer wall of the housing (10), and a support sliding plate (510) is slidably connected to the annular sliding grooves (500). The support sliding plate (510) is fixedly installed on the top surface of the conveying device (20).

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