Screening device for euphausia superba raw materials

Abstract

The utility model discloses a screening device for euphausia superba raw materials, and mainly relates to the field of raw material screening. Comprising a feeding conveying belt, a support is arranged below one end of the feeding conveying belt, the support is rotationally connected with a sieve plate which is obliquely arranged, a spring is arranged between the sieve plate and the support, the support is rotationally connected with a power rotating shaft, the power rotating shaft is provided with a plurality of cams, and the cams make rolling contact with the bottom of the sieve plate. A raw material conveying belt and an impurity conveying belt are arranged on the two sides of the bottom end of the sieve plate correspondingly. The small fish and shrimp impurity screening device has the advantages that the technical problem that an existing screening structure cannot screen small fish and shrimp impurities thoroughly can be solved, the small fish and shrimp impurities are continuously vibrated in the screening process, and therefore the small fish and shrimp impurities are made to get rid of the entanglement state with antarctic krill, the impurity screening and separating efficiency is improved, and the screening effect is good. And the impurities are separated more thoroughly.

Description

Technical Field

[0001] The utility model relates to the field of raw material screening, and specifically relates to a screening device for Antarctic krill raw materials. Background Technique

[0002] When the existing Antarctic krill used for producing krill oil is caught, it will carry some small fish and shrimp impurities inside. The existence of these impurities will affect the purity and quality of the krill oil. Therefore, it is necessary to screen out the small fish and shrimp impurities before producing krill oil. The existing screening method generally uses a sieve plate to screen them. However, the tentacles and legs of small fish and shrimp are very easy to entangle with Antarctic krill, resulting in some small fish and shrimp being difficult to separate from Antarctic krill when passing through the sieve plate. After screening, manual re-selection and inspection are still required, which affects the screening efficiency, increases the screening workload, and has a certain impact on the quality of the finished krill oil. Content of the Utility Model

[0003] The purpose of the utility model is to provide a screening device for Antarctic krill raw materials, which can solve the technical problem that the existing screening structure is not thorough in screening small fish and shrimp impurities. During screening, continuous vibration is applied to the small fish and shrimp impurities, so as to prompt the small fish and shrimp impurities to get rid of the entangled state with Antarctic krill, improve the efficiency of screening and separating impurities, and make the separation of impurities more thorough.

[0004] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0005] A screening device for Antarctic krill raw materials includes a feeding conveyor belt. Below one end of the feeding conveyor belt, there is a bracket. An inclined sieve plate is rotatably connected to the bracket. A spring is arranged between the sieve plate and the bracket. A power rotating shaft is rotatably connected to the bracket. A plurality of cams are arranged on the power rotating shaft. The cams are in rolling contact with the bottom of the sieve plate. On both sides of the bottom end of the sieve plate, there are respectively a raw material conveyor belt and an impurity conveyor belt.

[0006] Further, arc-shaped guide grooves are symmetrically arranged on both sides of the bracket. Sliders are slidably connected in the arc-shaped guide grooves. Both sides of the sieve plate are respectively rotatably connected to the sliders on both sides.

[0007] Further, the spring is arranged between the slider and the end of the arc-shaped guide groove.

[0008] Further, a fixed rotating shaft is rotatably connected to the bottom of the sieve plate. A plurality of contact wheels are arranged on the fixed rotating shaft. The cams are in rolling contact with the contact wheels.

[0009] Further, a limit groove is arranged on the contact wheel. The cams are in rolling contact with the limit groove.

[0010] Further, a vertical partition is provided at the position of the bracket at the bottom end of the sieve plate, and the partition is located between the raw material conveyor belt and the impurity conveyor belt.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The structure of the present utility model conveys the Antarctic krill raw materials with small fish and shrimp impurities to the inclined sieve plate through the feeding conveyor belt. The sieve plate is rotatably connected to the bracket below the feeding conveyor belt. After the raw materials enter the sieve plate, a plurality of cams on it are driven to rotate by the power rotating shaft, so that the long axis and the short axis of the cam alternately roll and contact with the bottom of the sieve plate. With the cooperation of the spring, the reciprocating vibration of the sieve plate is driven, so that the small fish and shrimp impurities are quickly separated from the Antarctic krill raw materials and fall from the sieve holes of the sieve plate, making the screening of impurities in the Antarctic krill raw materials more efficient and thorough, reducing the workload brought by manual selection later, further improving the screening efficiency, and ensuring the purity and quality of the finished shrimp oil;

[0013] 2. A raw material conveyor belt and an impurity conveyor belt are respectively provided on both sides of the bottom end of the sieve plate. Since the horizontal span of the sieve plate is relatively large, an impurity conveyor belt is arranged below the sieve plate, so that the screened impurities can all fall on the impurity conveyor belt for unified collection and treatment, while the qualified raw materials remaining above the sieve plate enter the raw material conveyor belt and enter the subsequent processing process, making the subsequent treatment of raw materials and impurities more efficient and convenient. Description of the Drawings

[0014] Attached Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0015] Attached Figure 2 is a front view of the present utility model.

[0016] Attached Figure 3 is the attached Figure 2 cross-sectional view in the A-A direction of the present utility model.

[0017] Attached Figure 4 is the attached Figure 3 cross-sectional view in the B-B direction of the present utility model.

[0018] Reference numerals shown in the drawings:

[0019] 1. Feeding conveyor belt; 2. Bracket; 3. Sieve plate; 4. Spring; 5. Power rotating shaft; 6. Cam; 7. Raw material conveyor belt; 8. Impurity conveyor belt; 9. Arc-shaped guide groove; 10. Slide block; 11. Fixed rotating shaft; 12. Contact wheel; 13. Limit groove; 14. Partition. Specific Embodiments

[0020] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0021] Referring to Figure 1 and Figure 2 , the present utility model relates to a screening device for Antarctic krill raw materials. The main structure includes a feeding conveyor belt 1. The Antarctic krill raw materials with small fish and shrimp impurities are conveyed to the screening position through the feeding conveyor belt 1. Below one end of the feeding conveyor belt 1, there is a bracket 2. The bracket 2 is generally made of metal and plays a supporting role. The two brackets 2 are symmetrically arranged. A slanted sieve plate 3 is rotatably connected to the bracket 2. Specifically, both sides of the top of the sieve plate 3 are rotatably connected to the two brackets 2 on both sides through bearings. A spring 4 is provided between the sieve plate 3 and the bracket 2. Specifically, the spring 4 is arranged between the relatively free bottom end of the sieve plate 3 and the bracket 2. A power rotating shaft 5 is rotatably connected to the bracket 2 through a bearing. The power rotating shaft 5 is driven to rotate by a motor and is located below the sieve plate 3. A plurality of cams 6 are fixed to the power rotating shaft 5 by welding or bolts. The distances between the various positions on the edge of the cam 6 and the center line of the power rotating shaft 5 are different. Specifically, an elliptical cross-section shape can be adopted. The cam 6 is in rolling contact with the bottom of the sieve plate 3. In such a structure, when the power rotating shaft 5 drives the plurality of cams 6 to rotate, during the contact process of the long axis of the cam 6 with the sieve plate 3, the sieve plate 3 will be driven to rotate relative to the bracket 2, compressing or stretching the spring 4. During the contact process of the short axis of the cam 6 with the sieve plate 3, under the action of the spring 4, the sieve plate 3 rotates reversely to reset. In this way, the reciprocating rotation of the sieve plate 3 is driven, and then the Antarctic krill on the sieve plate 3 vibrates continuously, making it easier for the small fish and shrimp impurities therein to be separated from the Antarctic krill raw materials. The separated small fish and shrimp impurities pass through the sieve holes on the sieve plate 3 and are screened out. On both sides of the bottom end of the sieve plate 3, there are respectively a raw material conveyor belt 7 and an impurity conveyor belt 8. The impurity conveyor belt 8 is located below the sieve plate 3. Due to the large transverse span of the sieve plate 3, the small fish and shrimp impurities falling from the sieve plate 3 can fall to various positions on the impurity conveyor belt 8, so that they can be collected and processed uniformly after the impurity conveyor belt 8 rotates, reducing the difficulty of collecting and processing impurities. The qualified Antarctic krill falls from the sieve plate 3 onto the raw material conveyor belt 7 and is quickly conveyed into the subsequent processing process, making the processing of the screened raw materials and impurities more convenient and efficient.

[0022] Preferably, referring to Figure 4, arc-shaped guide grooves 9 are symmetrically arranged on both sides of the bracket 2. The arc-shaped guide grooves 9 provide guidance for the rotation of the sieve plate 3. A slider 10 is slidably connected in the arc-shaped guide groove 9. Both sides of the sieve plate 3 are rotatably connected to the sliders 10 on both sides through bearings. Such a structure uses the cooperation of the arc-shaped guide groove 9 and the slider 10 to provide guidance and limit for the rotation of the sieve plate 3, making the rotation path of the sieve plate 3 more accurate, avoiding the shaking off of the Antarctic krill raw materials on it due to excessive rotation amplitude of the sieve plate 3, and avoiding the waste of raw materials while ensuring the screening effect.

[0023] Preferably, the spring 4 is arranged between the end of the slider 10 and the arc-shaped guide groove 9. Such a structure enables the sieve plate 3 to accurately compress the spring 4 when driving the slider 10 to move, thereby enabling the sieve plate 3 to generate an accurate reset elastic force, making the reciprocating vibration of the sieve plate 3 smoother and more accurate.

[0024] Preferably, a fixed rotating shaft 11 is rotatably connected to the bottom of the sieve plate 3 through a bearing. A plurality of contact wheels 12 are fixed to the fixed rotating shaft 11 by welding or bolts. The cam 6 is in rolling contact with the contact wheels 12. Such a structure enables the cam 6 to be in direct rolling contact with the contact wheels 12 rolling at the bottom of the sieve plate 3 when in rolling contact with the sieve plate 3, thereby making the relative frictional force between the two smaller, avoiding the wear of the cam 6 or the bottom of the sieve plate 3 after long-term use, and ensuring the overall service life of the device.

[0025] Preferably, referring to Figure 3 , a limiting groove 13 is provided on the contact wheel 12. The limiting groove 13 is recessed inward from the surface of the contact wheel 12. The cam 6 is in rolling contact with the limiting groove 13. The setting of the limiting groove 13 enables the cam 6 to only rotate relative to the contact wheel 12 within the limiting groove 13, thereby restricting the relative position of the cam 6 and the sieve plate 3, ensuring the accuracy of the rolling contact between the cam 6 and the contact wheel 12, and ensuring the smooth operation of the vibration driving structure.

[0026] Preferably, a vertical partition 14 is fixed to the position of the bracket 2 at the bottom end of the sieve plate 3 by welding or bolts. The partition 14 is located between the raw material conveyor belt 7 and the impurity conveyor belt 8. The setting of the partition 14 can prevent the qualified Antarctic krill raw materials from falling into the impurity conveyor belt 8 when dropping, thereby ensuring the accuracy of the screening structure and avoiding the waste of raw materials.

[0027] Working principle: The structure of the utility model conveys the Antarctic krill raw materials with small fish and shrimp impurities to the inclined sieve plate 3 through the feeding conveyor belt 1. The sieve plate 3 is rotatably connected to the bracket 2 below the feeding conveyor belt 1. After the raw materials enter the sieve plate 3, the power rotating shaft 5 is used to drive a plurality of cams 6 thereon to rotate, so that the long axis and the short axis of the cam 6 alternately roll and contact the bottom of the sieve plate 3. With the cooperation of the spring 4, the reciprocating vibration of the sieve plate 3 is driven, and then the small fish and shrimp impurities are quickly separated from the Antarctic krill raw materials and fall from the sieve holes of the sieve plate 3, making the screening of impurities in the Antarctic krill raw materials more efficient and thorough, reducing the workload brought by manual selection again in the later stage, further improving the screening efficiency, and ensuring the purity and quality of the finished shrimp oil; On both sides of the bottom end of the sieve plate 3, a raw material conveyor belt 7 and an impurity conveyor belt 8 are respectively arranged. Since the transverse span of the sieve plate 3 is relatively large, the impurity conveyor belt 8 is arranged below the sieve plate 3, so that the screened impurities can all fall on the impurity conveyor belt 8 for unified collection and treatment, while the qualified raw materials remaining above the sieve plate 3 enter the raw material conveyor belt 7 and enter the subsequent processing procedures, making the subsequent treatment of raw materials and impurities more efficient and convenient.

Claims

1. A screening device for Antarctic krill raw materials, comprising a feeding conveyor belt (1), characterized in that: Below one end of the feeding conveyor belt (1), there is a bracket (2). A slantingly arranged sieve plate (3) is rotatably connected to the bracket (2). A spring (4) is arranged between the sieve plate (3) and the bracket (2). A power rotating shaft (5) is rotatably connected to the bracket (2). A plurality of cams (6) are arranged on the power rotating shaft (5). The cams (6) are in rolling contact with the bottom of the sieve plate (3). On both sides of the bottom end of the sieve plate (3), there are respectively a raw material conveyor belt (7) and an impurity conveyor belt (8).

2. The screening device for Antarctic krill raw materials according to claim 1, wherein: Arc-shaped guiding grooves (9) are symmetrically arranged on both sides of the bracket (2). Sliders (10) are slidably connected in the arc-shaped guiding grooves (9). Both sides of the sieve plate (3) are respectively rotatably connected to the sliders (10) on both sides.

3. The screening device for Antarctic krill raw materials according to claim 2, characterized in that: The spring (4) is arranged between the slider (10) and the end of the arc-shaped guiding groove (9).

4. The screening device for Antarctic krill raw materials according to claim 1, characterized in that: A fixed rotating shaft (11) is rotatably connected to the bottom of the sieve plate (3). A plurality of contact wheels (12) are arranged on the fixed rotating shaft (11). The cams (6) are in rolling contact with the contact wheels (12).

5. The screening device for Antarctic krill raw materials according to claim 4, characterized in that: A limiting groove (13) is arranged on the contact wheel (12). The cams (6) are in rolling contact with the limiting groove (13).

6. The screening device for Antarctic krill raw materials according to claim 1, characterized in that: At the position of the bottom end of the sieve plate (3) on the bracket (2), there is a vertical partition plate (14). The partition plate (14) is located between the raw material conveyor belt (7) and the impurity conveyor belt (8).

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