A fish killer
The fish-killing machine, which integrates descaling, clamping, conveying, and cutting mechanisms, solves the problems of low efficiency, high labor intensity, and high hygiene risks in traditional fish processing, and realizes an automated and low-damage fish processing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI NONGGU SHENGHUI SUPPLY CHAIN CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional fish processing relies on manual operation, which is inefficient, labor-intensive, and poses high hygiene risks. Existing fish-killing equipment has limited functionality, poor scaling effect, unstable clamping, and is inconvenient to clean.
A fish-killing machine integrating descaling, clamping and conveying, cutting and slicing mechanisms was designed. It adopts a reverse rotating descaling shaft, elastic support components and a three-axis linkage system, combined with a high-pressure rinsing component to achieve automated processing.
It achieves efficient descaling, precise clamping, automatic cutting and cleaning, improving processing efficiency, reducing fish damage and lowering the risk of cross-contamination.
Smart Images

Figure CN224306674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquatic product processing machinery, and in particular to a fish-killing machine. Background Technology
[0002] Traditional fish processing relies on manual labor, resulting in low efficiency, high labor intensity, and high hygiene risks. Existing fish-killing equipment is mostly single-function (such as standalone scalers or cutters), requiring multiple transfers of the fish, leading to processing interruptions and reduced efficiency. Furthermore, existing technologies have the following drawbacks:
[0003] 1. Poor descaling effect: Rigid descaling rollers are prone to damaging the surface of fish and are difficult to adapt to different fish sizes; 2. Unstable clamping: Traditional conveying mechanisms have insufficient clamping force for curved fish, which is prone to slipping or deviating, affecting the subsequent cutting accuracy; 3. Inconvenient cleaning: After cutting, residual internal organs and fish scales need to be manually rinsed, which increases the risk of secondary contamination. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fish-killing machine.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model provides a fish-killing machine, comprising: a feeding chute, a descaling mechanism, a clamping and conveying mechanism, a cutting mechanism, a fish-exiting chute, and a slicing mechanism integrated into the bottom of the frame, arranged sequentially along its length; the descaling mechanism includes: two rows of parallel vertical descaling shafts, each shaft surface having a spirally arranged mesh-like descaling roller; an elastic support assembly, longitudinally passing through the vertical descaling shafts, and floatingly connected to both sides of the frame via a variable stiffness spring assembly and a linear guide shaft; and a descaling drive motor that drives the two rows of vertical descaling shafts to rotate in opposite directions; the clamping and conveying mechanism includes: an elastic guide plate with anti-slip texture, connected to the frame via a second spring assembly and a linear guide rail. The frame is elastically connected; symmetrically arranged silicone-coated arc-shaped clamping blocks; a three-axis linkage drive system, including a transverse ball screw unit, a longitudinal ball screw unit, and a V-shaped pressing assembly fixed below the longitudinal ball screw unit; the cutting mechanism includes a fish head cutting device composed of a cutting blade and a cylinder; the slicing mechanism includes a horizontally arranged fish-killing plate; a circular blade and a slicing roller blade, the rotating shafts of which are connected by a belt and driven by a slicing drive motor; all mechanisms work together through a central control unit, which is configured to control the start / stop and motion parameters of each drive component based on sensor feedback signals.
[0007] As a preferred embodiment of this utility model, the side of the arc-shaped clamping block is fixed to the bottom of the transverse ball screw unit by a fixing plate, and the transverse ball screw unit is fixedly connected to the side of the longitudinal ball screw unit by a connecting plate.
[0008] As a preferred embodiment of this utility model, the V-shaped pressing assembly includes: a hinge bracket fixed in the middle of the longitudinal ball screw unit, a V-shaped pressing block mounted on the hinge bracket, and a pressing drive motor for adjusting the angle of the hinge bracket.
[0009] As a preferred technical solution of this utility model, the cutting mechanism further includes a high-pressure rinsing assembly integrated on both sides of the fish-killing plate. The high-pressure rinsing assembly includes: a rotatable circular nozzle, the spray angle of which is adjustable in the range of 0°-90° by a stepper motor; and a water circuit system with a built-in solenoid valve to control the flow rate and opening and closing.
[0010] As a preferred embodiment of this utility model, the slitting roller includes a circular slitting disc and a conical slitting blade fixed to the edge of the slitting disc, wherein the blade inclination angle of the conical slitting blade is 15°-30°.
[0011] As a preferred technical solution of this utility model, the central control unit is signal-connected to the three-axis linkage drive system of the clamping and conveying mechanism, and is configured to dynamically adjust the stroke of the transverse ball screw unit and the longitudinal ball screw unit according to the fish size feedback.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. High-efficiency descaling with low damage: The counter-rotating vertical descaling shaft, combined with the mesh descaling roller, expands the descaling coverage area; the elastic support component adaptively adjusts the pressure through a variable stiffness spring assembly, reducing damage to the fish's surface.
[0014] 2. Precise clamping and conveying: The three-axis linkage drive system (lateral / longitudinal lead screw + V-shaped pressing component) realizes multi-dimensional dynamic adjustment to adapt to fish of different sizes and bending shapes; the silicone-coated arc-shaped clamping block combined with the elastic guide plate enhances anti-slip and stability.
[0015] 3. Integrated cleaning and cutting: The adjustable angle nozzles and solenoid valve water system of the high-pressure flushing component enable automatic flushing after cutting to avoid cross-contamination; the conical cutting blade works in conjunction with the circular blade to improve the consistency of cutting depth and the efficiency of internal organ removal. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is the front view of this utility model;
[0019] Figure 3 This is a top view of the present invention;
[0020] Figure 4 This is a side view of the present invention;
[0021] Figure 5 This is a schematic diagram of the cutting mechanism in this utility model;
[0022] In the diagram: 1. Frame; 2. Descaling mechanism; 3. Clamping and conveying mechanism; 4. Cutting mechanism; 5. Slicing mechanism; 6. Central control unit; 11. Feed chute; 12. Fish discharge chute; 21. Vertical descaling shaft; 22. Descaling roller; 23. Elastic support assembly; 24. Variable stiffness spring assembly; 25. Linear guide shaft; 26. Descaling drive motor; 31. Elastic guide plate; 32. Second spring assembly; 33. Linear slide rail; 34. Arc-shaped clamping block; 35. Horizontal ball screw unit; 36. Longitudinal ball screw unit; 37. V-shaped pressing assembly; 41. Cutting knife; 42. Cylinder; 51. Fish-killing plate; 52. Circular knife; 53. Splitting roller; 54. Splitting drive motor; 55. High-pressure flushing assembly; 371. V-shaped pressing block; 372. Pressing drive motor; 373. Hinge bracket; 531. Splitting disc; 532. Conical slitting knife; 551. Circular nozzle; 552. Water system. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0024] In the attached diagram, all identical reference numerals refer to the same components.
[0025] like Figure 1-5 As shown, this utility model provides a fish-killing machine, including a frame 1, and the following components are arranged sequentially along the length of the frame 1: feeding slide 11: inclinedly installed at the front end of the frame 1, with anti-slip protrusions on the surface, used to guide the fish to slide into the descaling mechanism 2;
[0026] Descaling mechanism 2: Located downstream of the feed chute 11, it is used to remove scales from the surface of the fish.
[0027] Clamping and conveying mechanism 3: Connected to descaling mechanism 2, used to clamp the fish body and convey it to the subsequent work station;
[0028] Cutting mechanism 4: Located at the end of the clamping and conveying mechanism 3, used for cutting fish heads;
[0029] Fish ejection slide 12: Receives the cut fish body and guides it to the cutting mechanism 5;
[0030] Cutting mechanism 5: Integrated at the bottom of frame 1, used to cut open the fish belly and clean the internal organs;
[0031] Central control unit 6: Fixed to the side of frame 1, it coordinates the operation of each mechanism through sensor signals.
[0032] The descaling mechanism 2 includes two parallel vertical descaling shafts 21 with spirally arranged mesh descaling rollers 22 on their surfaces, which descale the fish by rotating in opposite directions to rub the fish's surface; an elastic support assembly 23 that runs longitudinally through the descaling shafts 21 and is floatingly connected to the frame 1 at both ends via variable stiffness spring sets 24 and linear guide shafts 25, adaptively adjusting the pressure on the fish; and a descaling drive motor 26 that drives the two rows of descaling shafts 21 to rotate in opposite directions via a gear set, ensuring the descaling coverage area. The descaling shafts 21 are fixed to the frame 1 by bearing seats, and the output shaft of the descaling drive motor 26 is connected to the end of the descaling shafts 21 via a coupling. The linear guide shaft 25 of the elastic support assembly 23 slides against the side wall of the frame 1.
[0033] The clamping and conveying mechanism 3 includes an elastic guide plate 31 with anti-slip texture on its surface, elastically connected to the frame 1 via a second spring assembly 32 and a linear slide rail 33 to buffer the impact of the fish; silicone-coated arc-shaped clamping blocks 34 symmetrically arranged, with their spacing adjustable via a transverse ball screw unit 35 to accommodate different fish widths; a longitudinal ball screw unit 36 driving the clamping blocks 34 to move along the conveying direction; and a V-shaped pressing assembly 37 fixed below the longitudinal ball screw unit 36, including a hinge bracket 373, a V-shaped pressing block 371, and a pressing drive motor 372, used to press down the fish to prevent deviation. The transverse ball screw unit 35 is fixed to the side of the longitudinal ball screw unit 36 via a connecting plate 351, and the hinge bracket 373 of the V-shaped pressing assembly 37 is connected to the middle of the longitudinal ball screw unit 36 via a rotating shaft.
[0034] The cutting mechanism 4 includes a cutting blade 41 with an arc-shaped cutting edge that matches the contour of the fish head; and a cylinder 42 that drives the cutting blade 41 to move vertically up and down to complete the cutting of the fish head. The cylinder body of the cylinder 42 is fixed to the top of the frame 1, and the end of the piston rod is connected to the cutting blade 41.
[0035] The cutting mechanism 5 includes a fish-killing plate 51: horizontally fixed to the bottom of the frame 1, with guide grooves on its surface; a circular blade 52: rotating to cut the fish belly, with its shaft connected to the cutting drive motor 54 via a belt; a cutting roller 53: including a circular cutting disc 531 and a conical cutting blade 532, with an inclined conical blade edge for separating internal organs; and a high-pressure rinsing assembly 55: integrated on both sides of the fish-killing plate 51, including a circular nozzle 551 and a solenoid valve water system 552, with the nozzle 551 having an adjustable spray angle via a stepper motor. The circular blade 52 and the cutting roller 53 are installed parallel to each other, and the pulley assembly is linked to the output shaft of the cutting drive motor 54; the water system 552 of the high-pressure rinsing assembly 55 is connected to an external water source via a hose.
[0036] The central control unit 6 receives signals from the fish size sensor and position sensor, and dynamically controls the speed of the scaling drive motor 26, the stroke of the transverse ball screw unit 35, the cutting timing of the cylinder 42, and the opening and closing of the high-pressure flushing component 55; it is connected to each drive motor, sensor and solenoid valve signal through cables to realize full-process automation.
[0037] The method of using this utility model is as follows:
[0038] 1. The fish enters the descaling mechanism 2 through the feeding chute 11. The elastic support component 23 adaptively adjusts the pressure, and the descaling roller 22 rotates spirally to remove the scales.
[0039] 2. Clamping and conveying: The three-axis linkage system (lateral 35, longitudinal 36 lead screw + V-shaped pressing 37) clamps the fish body to the cutting station, and the cylinder 42 drives the cutting blade 41 to cut off the fish head;
[0040] 3. Dissection and cleaning: The fish body enters the dissection mechanism 5 through the fish exit slide 12. The circular knife 52 and the dissection roller knife 53 work together to dissect the belly, and the high-pressure rinsing component 55 cleans the remaining internal organs.
[0041] 4. The central control unit 6 adjusts parameters based on real-time feedback to ensure processing continuity and consistency.
[0042] This utility model is a fish-killing machine that integrates an elastic support descaling mechanism, a three-axis linkage clamping and conveying system, and an intelligent control unit to achieve integrated processing of automatic descaling, precise cutting, efficient gutting and cleaning of fish, significantly improving efficiency and reducing fish damage.
[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A fish-killing machine, characterized in that, include: The feeding chute (11), descaling mechanism (2), clamping and conveying mechanism (3), cutting mechanism (4), fish discharge chute (12), and slitting mechanism (5) integrated at the bottom of the frame (1) are arranged sequentially along its length. The descaling mechanism (2) includes: two parallel vertical descaling shafts (21) and descaling rollers (22) with a mesh pattern spirally arranged on the surface of each shaft. An elastic support assembly (23) is set longitudinally through the vertical descaling shafts (21) and is floatingly connected to both sides of the frame (1) through a variable stiffness spring assembly (24) and a linear guide shaft (25). A descaling drive motor (26) drives the two vertical descaling shafts (21) to rotate in opposite directions. The clamping and conveying mechanism (3) includes: an elastic guide plate (31) with anti-slip texture, which is connected to the frame through a second spring assembly (32) and a linear slide rail (33). (1) Elastic connection; symmetrically arranged silicone-coated arc-shaped clamping blocks (34); a three-axis linkage drive system, including a transverse ball screw unit (35), a longitudinal ball screw unit (36), and a V-shaped pressing assembly (37) fixed below the longitudinal ball screw unit (36); the cutting mechanism (4) includes: a fish head cutting device composed of a cutting blade (41) and a cylinder (42); the slitting mechanism (5) includes: a horizontally arranged fish-killing plate (51); a round blade (52) and a slitting roller blade (53), the rotating shafts of the round blade (52) and the slitting roller blade (53) are connected by a belt and driven by a slitting drive motor (54); the mechanisms work together through a central control unit (6), which is configured to control the start and stop and motion parameters of each drive component based on sensor feedback signals.
2. The fish-killing machine according to claim 1, characterized in that, The side of the arc-shaped clamping block (34) is fixed to the bottom of the transverse ball screw unit (35) by a fixing plate (341), and the transverse ball screw unit (35) is fixedly connected to the side of the longitudinal ball screw unit (36) by a connecting plate (351).
3. The fish-killing machine according to claim 1, characterized in that, The V-shaped pressing assembly (37) includes: a hinge bracket (373) fixed in the middle of the longitudinal ball screw unit (36), a V-shaped pressing block (371) mounted on the hinge bracket (373), and a pressing drive motor (372) for driving the angle adjustment of the hinge bracket (373).
4. The fish-killing machine according to claim 1, characterized in that, The cutting mechanism (5) further includes: a high-pressure rinsing assembly (55) integrated on both sides of the fish-killing plate (51), the high-pressure rinsing assembly (55) including: a rotatable circular nozzle (551), the spray angle of the circular nozzle (551) being adjustable in the range of 0°-90° by a stepper motor; and a water circuit system (552) with built-in solenoid valves controlling the flow rate and opening and closing.
5. A fish-killing machine according to claim 1, characterized in that, The slitting roller (53) includes: a circular slitting disc (531) and a conical slitting blade (532) fixed to the edge of the slitting disc (531), wherein the cutting edge inclination angle of the conical slitting blade (532) is 15°-30°.
6. A fish-killing machine according to claim 1, characterized in that, The central control unit (6) is connected to the three-axis linkage drive system of the clamping and conveying mechanism (3) and is configured to dynamically adjust the stroke of the transverse ball screw unit (35) and the longitudinal ball screw unit (36) according to the fish size feedback.