A shrimp body conveying system

Abstract

The present invention discloses a shrimp conveying system, including a feeding device and a conveying device; the feeding device includes a material box, an ascending conveyor belt mechanism and a shrimp guiding mechanism; the conveying device includes a plane conveyor belt, a pressing mechanism and a lever mechanism; the pressing mechanism includes a spring support, a first elastic pressing plate and a needle picking spring plate are provided on the spring support, one side of the first elastic pressing plate can press a single shrimp body on the plane conveyor belt by a tightening force; the needle picking spring plate is provided with a fastener facing the other side of the first elastic pressing plate; the lever mechanism includes a lever support, a distance limiting lever and a lever rotating shaft; one end of the distance limiting lever is close to the needle picking spring plate, and the other end of the distance limiting lever is aligned with the single shrimp body on the plane conveyor belt. The shrimp conveying system provided by the embodiment of the present invention realizes uniform arrangement on the shrimp processing line by constructing a feeding device capable of uniform feeding and a conveying device capable of uniform arrangement, and the two cooperate with each other to achieve uniform arrangement on the shrimp processing line, thereby promoting the automation process of shrimp processing.

Description

Technical Field

[0001] The invention relates to the technical field of shrimp processing, in particular to a shrimp body conveying system. Background Art

[0002] As people's living standards continue to improve, consumers' preference for high-protein, high-nutrition shrimp products has also been increasing, which has greatly promoted the rapid development of the aquatic products industry. The huge population demand in my country has also put forward more urgent demands for industrial upgrading in the aquatic product processing industry.

[0003] In the current aquatic product industry, in the automated processing of shrimp bodies, it is necessary to use various processing mechanisms on the assembly line to realize the automated mechanical processing of shrimp bodies such as cleaning, shelling, deveining, delegating, sorting, and single freezing one by one. The processing equipment in each link often only performs precision processing on a single shrimp body, which requires that the shrimp bodies on the assembly line be arranged evenly and at equal intervals in order to achieve precise processing of each shrimp body. Nowadays, the main method used is pure manual work, in which the staff evenly arranges a large number of shrimp bodies to be processed on the assembly line. This method has high labor intensity and high labor costs, which is not conducive to the automated development of shrimp body processing. Summary of the invention

[0004] The present invention provides a shrimp body conveying system to solve the technical problem that a large number of shrimp bodies on an assembly line are currently evenly arranged manually, resulting in high labor intensity and high labor costs. By constructing a feeding device capable of achieving uniform feeding and a conveying device capable of achieving uniform arrangement, the two cooperate with each other to achieve uniform arrangement on the shrimp body processing assembly line, thereby promoting the automation process of shrimp body processing.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a shrimp body conveying system, comprising: a feeding device and a conveying device;

[0006] The feeding device includes a material box, a rising conveyor belt mechanism and a shrimp guiding mechanism; the conveying device includes a flat conveyor belt, a sheet pressing mechanism and a lever mechanism arranged on the top of the flat conveyor belt;

[0007] One end of the ascending conveyor belt mechanism is arranged in the material box, and the other end of the ascending conveyor belt mechanism extends away from the top of the material box, and the other end of the ascending conveyor belt mechanism is aligned with the shrimp inlet of the shrimp guide mechanism, and the shrimp outlet of the shrimp guide mechanism is aligned with the flat conveyor belt;

[0008] The pressing mechanism comprises a spring support, on which a first elastic pressing sheet and a needle-picking spring sheet are arranged, one side of the first elastic pressing sheet can press a single shrimp body on the plane conveyor belt by a fastening force; and the needle-picking spring sheet is provided with a fastener facing the other side of the first elastic pressing sheet;

[0009] The lever mechanism includes a lever support, a distance limiting lever and a lever shaft; the lever shaft passes through the middle part of the distance limiting lever and is arranged on the lever support; the two ends of the distance limiting lever can swing relative to each other under the action of the lever shaft; one end of the distance limiting lever is close to the needle picking spring, so that the fastener applies the fastening force to one side of the first elastic pressing plate under the swing of the distance limiting lever, and the other end of the distance limiting lever is aligned with the single shrimp body on the planar conveyor belt.

[0010] As one of the preferred solutions, a plurality of upper shrimp troughs are evenly spaced on the conveyor belt of the ascending conveyor belt mechanism.

[0011] As one preferred solution, a first water outlet is provided at the bottom of each upper shrimp tank.

[0012] As one of the preferred solutions, a plurality of second water outlet holes are provided on the conveyor belt.

[0013] As one preferred solution, the shrimp guiding mechanism comprises a first shrimp guiding chute, a shrimp guiding swing piece, a swing piece rotating shaft and a second shrimp guiding chute;

[0014] The shrimp inlet of the first shrimp guiding chute is aligned with the other end of the ascending conveyor belt mechanism;

[0015] The swing plate rotating shaft is arranged in the middle of the shrimp guide swing plate, and the two ends of the shrimp guide swing plate can rotate relatively under the action of the swing plate rotating shaft; one end of the shrimp guide swing plate is aligned with the planar conveyor belt; the other end of the shrimp guide swing plate is aligned with the shrimp outlet of the first shrimp guide chute, and the other end of the shrimp guide swing plate can be rotated to a shrimp inlet close to the second shrimp guide chute by the action of the swing plate rotating shaft;

[0016] The shrimp outlet of the second shrimp guiding chute is aligned with the material box.

[0017] As one of the preferred solutions, the conveying device also includes a vibrating bucket, a shrimp inlet of the vibrating bucket is aligned with one end of the shrimp guide swinging piece; a shrimp outlet of the vibrating bucket is aligned with the planar conveyor belt; and a vibrator is also provided on the peripheral side of the vibrating bucket.

[0018] As one of the preferred solutions, a second elastic pressing plate is further provided on the spring support, and one side of the second elastic pressing plate faces the single shrimp body on the planar conveyor belt.

[0019] As one of the preferred solutions, the first elastic pressing sheet and the needle picking spring are respectively fixed to two sides of the spring support by screws.

[0020] As a preferred solution, the fastener is a pressure needle.

[0021] As one of the preferred solutions, a shrimp guide trough is further provided on the planar conveyor belt, and a shrimp inlet of the shrimp guide trough is close to the other end of the distance limiting lever.

[0022] Compared with the prior art, the beneficial effect of the embodiment of the present invention is that, by constructing a shrimp conveying system in which a feeding device and a conveying device cooperate with each other, the feeding device realizes an orderly and quantitative shrimp feeding effect through an ascending conveyor belt mechanism, and the conveying device cooperates with each other through a pressing mechanism of a specific structure and a lever mechanism of a specific structure. When a shrimp passes through the plane conveyor belt, the shrimp located at the front side touches the other end of the distance-limiting lever in the lever mechanism, generating a corresponding thrust, causing one end of the distance-limiting lever to move, pressing the needle picking spring sheet downward, and then causing the fastener on the needle picking spring sheet to apply a corresponding fastening force to the first elastic pressing sheet, and the first elastic pressing sheet presses the shrimp located at the rear side of the conveyor belt; when the shrimp located at the front side passes through the lever mechanism driven by the conveyor belt, the other end of the distance-limiting lever is retracted, and one end of the distance-limiting lever moves away from the needle picking spring sheet accordingly, thereby canceling the fastening force pressing the rear shrimp body, and the rear shrimp body continues to move forward under the drive of the conveyor belt. In this cycle, the shrimp bodies on the assembly line are evenly and spacedly arranged on the plane conveyor belt. The whole shrimp conveying system has a high degree of automation. Through the dual guarantees of the feeding device and the conveying device, the effect of uniformly spaced feeding is achieved, thereby optimizing the subsequent automated processing process of shrimps and ensuring the subsequent processing effect of shrimp bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a shrimp body conveying system in one embodiment of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of a rising conveyor belt mechanism in one embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of a shrimp guiding mechanism in one embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a tablet pressing mechanism and a lever mechanism in one embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the movement of shrimp bodies on a flat conveyor belt in one embodiment of the present invention;

[0028] Among them, 1. material box; 2. flat conveyor belt; 3. spring support; 4. first elastic pressure plate; 5. needle picking spring; 6. fastener; 7. lever support; 8. distance limiting lever; 9. lever shaft; 10. first water outlet; 11. second water outlet; 12. first shrimp guide chute; 13. shrimp guide swing plate; 14. swing plate shaft; 15. second shrimp guide chute; 16. vibrating bucket; 17. vibrator; 18. second elastic pressure plate; 19. shrimp guide chute; A. transmission roller; A1. transmission roller; B. conveyor belt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0033] An embodiment of the present invention provides a shrimp body conveying system. For details, see Figures 1 to 5 ,in Figure 1 FIG. 1 is a schematic diagram showing the structure of a shrimp body conveying system in one embodiment of the present invention. Figure 2 FIG. 1 is a partial structural schematic diagram of a rising conveyor belt mechanism in one embodiment of the present invention. Figure 3 FIG. 1 is a schematic diagram of a shrimp guiding mechanism in one embodiment of the present invention. Figure 4 FIG. 1 is a schematic diagram showing the structure of a tablet pressing mechanism and a lever mechanism in one embodiment of the present invention. Figure 5 The figure shows a schematic diagram of the movement of shrimp bodies on a flat conveyor belt in one embodiment of the present invention, wherein the shrimp body conveying system comprises: a feeding device and a conveying device;

[0034] The feeding device includes a material box 1, a rising conveyor belt mechanism and a shrimp guiding mechanism; the conveying device includes a plane conveyor belt 2 (the plane conveyor belt is composed of two driving rollers A1 and a plane conveyor belt), a sheet pressing mechanism and a lever mechanism arranged on the top of the plane conveyor belt 2;

[0035] One end of the ascending conveyor belt mechanism is arranged in the material box, and the other end of the ascending conveyor belt mechanism extends away from the top of the material box, and the other end of the ascending conveyor belt mechanism is aligned with the shrimp inlet of the shrimp guide mechanism, and the shrimp outlet of the shrimp guide mechanism is aligned with the flat conveyor belt;

[0036] The pressing mechanism comprises a spring support 3, on which a first elastic pressing sheet 4 and a needle-picking spring sheet 5 are arranged, one side of the first elastic pressing sheet 4 can press a single shrimp body on the planar conveyor belt 2 by a fastening force; the needle-picking spring sheet 5 is provided with a fastener 6 facing the other side of the first elastic pressing sheet 4;

[0037] The lever mechanism includes a lever support 7, a distance limiting lever 8 and a lever shaft 9; the lever shaft 9 passes through the middle of the distance limiting lever 8 and is arranged on the lever support 7; the two ends of the distance limiting lever 8 can swing relative to each other under the action of the lever shaft 9; one end of the distance limiting lever 8 is close to the needle picking spring 5, so that the fastener 6 applies the fastening force to one side of the first elastic pressing plate 4 under the swing of the distance limiting lever 8, and the other end of the distance limiting lever 8 is aligned with the single shrimp body on the planar conveyor belt 2.

[0038] It should be noted that in the aquatic product processing industry, a large number of shrimp bodies to be processed are often placed in an open container (i.e., a material box), and in order to ensure the freshness of the food, a large amount of water is stored in the container to preserve the freshness (the shrimp bodies are in a floating state in the water). In this embodiment, the material box is preferably a rectangular parallelepiped with an opening on the top, and the rising conveyor belt mechanism includes two transmission rollers A (only one transmission roller is shown in the figure, and the other transmission roller is blocked by the material box), and a transmission belt B (the structure is the same as the prior art) is wound around the transmission roller A. In order to achieve orderly and quantitative shrimp delivery, one end of the rising conveyor belt mechanism is raised instead of adopting a horizontal transmission method, so that the shrimp bodies cannot be completely transported on the transmission belt B under the action of gravity (the transmission belt is transmitted upward), and only a small amount of shrimp bodies can be transported obliquely upward under the friction of the transmission belt B; because the position of one end of the rising conveyor belt mechanism is relatively high, in order to match the position of the plane conveyor belt 2 in the subsequent conveying device, a shrimp guide mechanism is also provided in this embodiment for transition, and the function of the shrimp guide mechanism is to transmit the shrimp bodies at a high position to the plane conveyor belt, so that the shrimp bodies can perform subsequent actions on the plane conveyor belt.

[0039] Furthermore, in the above embodiment, a plurality of upper shrimp troughs B9 are evenly spaced on the conveyor belt B of the ascending conveyor mechanism. The upper shrimp troughs can optimize the conveying effect of the shrimp bodies during the ascending process. Of course, the size and shape of the upper shrimp troughs are determined by different types of shrimp and actual product processing requirements.

[0040] Furthermore, in the above embodiment, each upper shrimp tank B9 is provided with a first water outlet 10 at the bottom. During the shrimp loading process, when shrimps have entered the upper shrimp tank, the shrimps will block the first water outlet at the bottom, making it impossible for water to flow through. This makes it difficult for shrimps to enter the upper shrimp tank, thereby ensuring that each upper shrimp tank only receives one shrimp for upward transportation.

[0041] Furthermore, in the above embodiment, a plurality of second water outlets 11 are provided on the conveyor belt B. The second water outlets can discharge water flowing through the conveyor belt, thereby increasing the friction of the shrimp body on the conveyor belt and optimizing the conveying process of the shrimp body.

[0042] Further, in the above embodiment, the shrimp guiding mechanism includes a first shrimp guiding chute 12, a shrimp guiding swing piece 13, a swing piece rotating shaft 14 and a second shrimp guiding chute 15;

[0043] The shrimp inlet of the first shrimp guiding chute 12 is aligned with the other end of the ascending conveyor belt mechanism;

[0044] The swing plate rotating shaft 14 is arranged in the middle of the shrimp guide swing plate 13, and the two ends of the shrimp guide swing plate 13 can rotate relatively under the action of the swing plate rotating shaft 14; one end of the shrimp guide swing plate 13 is aligned with the planar conveyor belt 2; the other end of the shrimp guide swing plate 13 is aligned with the shrimp outlet of the first shrimp guide chute 12, and the other end of the shrimp guide swing plate 13 can be rotated to a shrimp inlet close to the second shrimp guide chute 15 by the action of the swing plate rotating shaft 14;

[0045] The shrimp outlet of the second shrimp guiding chute 15 is aligned with the material box 1 .

[0046] It should be noted that, in this embodiment, considering that the other end of the ascending conveyor belt mechanism is at a higher height, the shrimp guide mechanism is designed as a buffer structure with two gradients. First, the first shrimp guide chute receives the shrimp bodies conveyed by the ascending conveyor belt mechanism, and then the shrimp guide swinging piece receives the shrimp bodies conveyed by the first shrimp guide chute. Preferably, the structure formed by the shrimp guide swinging piece and the swinging piece rotating shaft is to further optimize the process of delivering a single shrimp. The swinging piece rotating shaft is arranged in the middle part of the shrimp guide swinging piece, and the two ends of the shrimp guide swinging piece can rotate relative to each other under the action of the swinging piece rotating shaft. When a single shrimp body falls from the first shrimp guide chute into the other end part of the shrimp guide swinging piece, due to the small inertia of the single shrimp body, the shrimp guide swinging piece only swings slightly, and then the shrimp body slides to one end part of the shrimp guide swinging piece and is discharged from the shrimp guide mechanism; when multiple shrimp bodies fall from the first shrimp guide chute into the other end part of the shrimp guide swinging piece, due to the large inertia of the multiple shrimp bodies, the impact force on the other end part of the shrimp guide swinging piece is large, causing it to rotate downward, close to the shrimp inlet of the second shrimp guide chute, and then the multiple shrimp bodies are re-transmitted back to the material box through the second shrimp guide chute.

[0047] Furthermore, in the above embodiment, the conveying device further comprises a vibrating bucket 16, the shrimp inlet of the vibrating bucket 16 is aligned with one end of the shrimp guide swinging piece 13; the shrimp outlet of the vibrating bucket 16 is aligned with the planar conveyor belt 2; and a vibrator 17 is further provided on the peripheral side of the vibrating bucket 16. The vibrator provides a vibrating force to the vibrating bucket, so that the position of the shrimp body falling into the vibrating bucket is calibrated, thereby optimizing the transmission process of the shrimp body.

[0048] Furthermore, in the above embodiment, a second elastic pressing sheet 18 is further provided on the spring support 3, and one side of the second elastic pressing sheet 18 faces the single shrimp body on the planar conveyor belt 2. The second elastic pressing sheet cooperates with the first elastic pressing sheet so that the two shrimp bodies on the planar conveyor belt are constrained by the pressing sheet, laying a foundation for subsequent separation and arrangement.

[0049] In addition, it should be noted that the shape of the planar conveyor belt can be changed according to different processing requirements. For example, in an embodiment of the present invention, a pressing mechanism and a lever mechanism are provided above a certain section of the planar conveyor belt. Preferably, this section of the conveyor belt is arranged in a groove shape (connected to the subsequent shrimp guide groove 19) to form a accommodating space for the pressing mechanism and the lever mechanism to act on the shrimp body.

[0050] Furthermore, in the above embodiment, the first elastic pressing piece 4 and the needle picking spring piece 5 are respectively fixed to the two sides of the spring support 3 by screws. Of course, the connection method of the relevant components needs to comprehensively consider the cost and actual structure of the system.

[0051] Furthermore, in the above embodiment, the fastener 6 is a pressure needle, through which a fastening force is applied to one side of the first elastic pressing sheet.

[0052] Furthermore, in the above embodiment, the planar conveyor belt 2 is further provided with a shrimp guide groove 19, and the shrimp inlet of the shrimp guide groove 19 is close to the other end of the distance limiting lever 8. After the shrimp body passes through the action of the sheet pressing mechanism and the lever mechanism, preferably, the shape of the shrimp guide groove on the planar conveyor belt (such as a U-shaped groove and a V-shaped groove) is configured to adjust the orientation and position of each shrimp body, so that the subsequent related processing devices can perform precision processing on the shrimp body.

[0053] The shrimp conveying system provided by the embodiment of the present invention has the beneficial effect that, by constructing a shrimp conveying system composed of a feeding device and a conveying device that cooperate with each other, the feeding device realizes the orderly and quantitative shrimp feeding effect through the rising conveyor belt mechanism, and the conveying device cooperates with each other through a pressing mechanism of a specific structure and a lever mechanism of a specific structure, when a shrimp passes by on the plane conveyor belt, the shrimp located at the front side touches the other end of the distance-limiting lever in the lever mechanism, generating a corresponding thrust, causing one end of the distance-limiting lever to move, pressing the needle picking spring sheet downward, and then causing the fastener on the needle picking spring sheet to apply a corresponding fastening force to the first elastic pressing sheet, and the first elastic pressing sheet presses the shrimp located at the rear side of the conveyor belt; when the shrimp located at the front side passes through the lever mechanism driven by the conveyor belt, the other end of the distance-limiting lever is retracted, and one end of the distance-limiting lever moves away from the needle picking spring sheet accordingly, thereby canceling the fastening force pressing the rear shrimp body, and the rear shrimp body continues to move forward under the drive of the conveyor belt. In this cycle, the shrimp bodies on the assembly line are evenly and spacedly arranged on the plane conveyor belt. The whole shrimp conveying system has a high degree of automation. Through the dual guarantees of the feeding device and the conveying device, the effect of uniformly spaced feeding is achieved, thereby optimizing the subsequent automated processing process of shrimps and ensuring the subsequent processing effect of shrimp bodies.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A shrimp conveying system, characterized in that: include: Loading device and conveying device; The feeding device includes a material box, a rising conveyor belt mechanism and a shrimp guiding mechanism; the conveying device includes a flat conveyor belt, a sheet pressing mechanism and a lever mechanism arranged on the top of the flat conveyor belt; One end of the ascending conveyor belt mechanism is arranged in the material box, and the other end of the ascending conveyor belt mechanism extends away from the top of the material box, and the other end of the ascending conveyor belt mechanism is aligned with the shrimp inlet of the shrimp guide mechanism, and the shrimp outlet of the shrimp guide mechanism is aligned with the flat conveyor belt; The pressing mechanism comprises a spring support, on which a first elastic pressing sheet and a needle-picking spring sheet are arranged, one side of the first elastic pressing sheet can press a single shrimp body on the plane conveyor belt by a fastening force; and the needle-picking spring sheet is provided with a fastener facing the other side of the first elastic pressing sheet; The lever mechanism comprises a lever support, a distance-limiting lever and a lever shaft; the lever shaft passes through the middle of the distance-limiting lever and is arranged on the lever support; the two ends of the distance-limiting lever can swing relative to each other under the action of the lever shaft; one end of the distance-limiting lever is close to the needle-picking spring sheet, so that the fastener applies the fastening force to one side of the first elastic pressing sheet under the swing of the distance-limiting lever, and the other end of the distance-limiting lever is aligned with a single shrimp body on the plane conveyor belt; The shrimp guiding mechanism comprises a first shrimp guiding inclined groove, a shrimp guiding swinging piece, a swinging piece rotating shaft and a second shrimp guiding inclined groove; The shrimp inlet of the first shrimp guiding chute is aligned with the other end of the ascending conveyor belt mechanism; The swing plate rotating shaft is arranged in the middle of the shrimp guide swing plate, and the two ends of the shrimp guide swing plate can rotate relatively under the action of the swing plate rotating shaft; one end of the shrimp guide swing plate is aligned with the planar conveyor belt; the other end of the shrimp guide swing plate is aligned with the shrimp outlet of the first shrimp guide chute, and the other end of the shrimp guide swing plate can be rotated to a shrimp inlet close to the second shrimp guide chute by the action of the swing plate rotating shaft; The shrimp outlet of the second shrimp guiding chute is aligned with the material box; The conveying device also includes a vibrating bucket, the shrimp inlet of the vibrating bucket is aligned with one end of the shrimp guide swinging piece; the shrimp outlet of the vibrating bucket is aligned with the planar conveyor belt; and a vibrator is also provided on the peripheral side of the vibrating bucket; A plurality of upper shrimp troughs are arranged at equal intervals on the conveyor belt of the ascending conveyor belt mechanism.

2. The shrimp conveying system according to claim 1, characterized in that: A first water outlet is provided at the bottom of each upper shrimp tank.

3. The shrimp body conveying system according to claim 1, characterized in that: A plurality of second water outlet holes are provided on the conveyor belt.

4. The shrimp conveying system according to claim 1, characterized in that: A second elastic pressing sheet is also provided on the spring support, and one side of the second elastic pressing sheet faces the single shrimp body on the planar conveyor belt.

5. The shrimp conveying system according to claim 1, characterized in that: The first elastic pressing sheet and the needle picking spring are respectively fixed to two sides of the spring support by screws.

6. The shrimp conveying system according to claim 1, characterized in that: The fastener is a pressure needle.

7. The shrimp body conveying system according to claim 1, characterized in that: The planar conveyor belt is also provided with a shrimp guiding groove, and the shrimp inlet of the shrimp guiding groove is close to the other end of the distance limiting lever.

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