Scissors for fish processing
By integrating shearing and sawing functions into fish processing scissors, which utilize electromagnets to drive the reciprocating motion of the moving blades and negative pressure suction, the problems of operator fatigue and cleaning when processing hard parts with traditional scissors are solved, thus achieving efficient and clean fish processing.
Patent Information
- Application Number
- CN202522698737.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Traditional fish processing shears require considerable force when handling hard parts, leading to operator fatigue and making it difficult to maintain a clean working environment.
A pair of scissors integrating shearing and sawing functions was designed. The movable blade is driven to reciprocate by an electromagnet, and combined with negative pressure suction and a sponge-like structure, it can achieve multi-mode cutting and liquid discharge.
It improves the smoothness of fish processing operations, reduces operator fatigue, maintains a clean operating environment, and adapts to the cutting needs of different tissues.
Smart Images
Figure CN224924514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a handheld cutting tool, and more particularly to a pair of scissors for processing fish. Background Technology
[0002] In fish processing, especially for fish with hard bony structures such as sturgeon, there are specific requirements for the efficiency and effectiveness of cutting tools. The processing usually involves multiple steps such as head removal, evisceration, and segmentation. These steps place comprehensive demands on the cutting ability of tools, their adaptability to different tissues (such as meat, skin, and bone), and the hygiene of the operation.
[0003] Traditional manual fish-cutting shears rely primarily on the gripping force applied by the user's hand to drive a pair of blades to perform the cutting action. These tools are typically simple in structure, but when processing hard parts such as the fish head and spine, the user needs to apply considerable force, which can easily lead to fatigue.
[0004] Therefore, it is necessary to design a fish processing tool that can integrate different cutting modes and adapt to the operating environment in order to improve the smoothness of the operation. Utility Model Content
[0005] In view of the above situation and to overcome the shortcomings of the prior art, this utility model provides a pair of scissors for fish processing. These scissors can integrate different cutting modes and are adaptable to different operating environments, thereby improving operational smoothness, hygiene, and reducing work interruptions caused by tool changes or cleaning complex structures.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides a pair of scissors for fish processing, comprising:
[0008] A scissor holder, comprising a base blade and a functional blade; the base blade and the functional blade are rotatably connected via a pivot.
[0009] A sawing assembly includes a movable blade, a blade magnet, and an electromagnet; the movable blade is slidably mounted on the functional blade; the blade magnet is fixedly mounted on the movable blade; and the electromagnet is fixedly mounted on the functional blade.
[0010] A controller, which is electrically connected to the electromagnet;
[0011] in,
[0012] The controller changes the direction of the electromagnet's poles to attract or repel the blade magnet, thereby driving the movable blade to reciprocate relative to the functional blade.
[0013] Furthermore, the movable blade is disposed on the side of the functional blade facing the base blade; the cutting edges of the base blade and the movable blade cooperate to form a shearing pair.
[0014] Furthermore, the cutting edge of the movable blade that mates with the base blade has sharp teeth.
[0015] Furthermore, the sawing assembly further includes:
[0016] An angle sensor is disposed between the base blade and the functional blade and sleeved on the rotating shaft to monitor the opening and closing angle between the base blade and the functional blade; the angle sensor is electrically connected to the controller;
[0017] The controller is further configured as follows:
[0018] The frequency of the electromagnet's energization is adjusted according to the included angle, thereby controlling the reciprocating frequency of the movable blade.
[0019] Furthermore, the sawing assembly further includes:
[0020] A shield, which is mounted on the functional blade and slides in cooperation with the movable blade in the reciprocating direction of the movable blade, is used to prevent the blade magnet from being entangled by fish meat.
[0021] Furthermore, the shield and the functional blade enclose a liquid accumulation cavity; the liquid accumulation cavity is connected to an external air extraction device through a discharge port;
[0022] The movable blade is sponge-like with multiple cavities, and its internal pores are connected to the liquid accumulation cavity to guide the liquid generated during cutting into the liquid accumulation cavity.
[0023] Furthermore, the functional blade is provided with a guide groove;
[0024] The movable blade is provided with a guide block that is adapted to the guide groove;
[0025] The guide block and the guide groove are in sliding engagement to guide the movable blade to reciprocate relative to the functional blade.
[0026] Furthermore, the basic blade is provided with a first shank;
[0027] The functional blade is provided with a second shank;
[0028] A return spring is installed between the first handle and the second handle; the return spring causes the first handle and the second handle to tend to move away from each other.
[0029] Furthermore, the outer surfaces of the first handle and the second handle are covered with a silicone anti-slip sleeve with a thickness of not less than 2 mm.
[0030] Furthermore, the cutting edges of the base blade and the movable blade are coated with a Teflon-based composite coating with a thickness of not less than 0.05 mm.
[0031] This utility model has at least the following advantages or beneficial effects:
[0032] This invention employs a scissor frame structure, comprising a basic blade and a functional blade rotatably connected via a pivot, providing basic shearing functionality. It also incorporates a sawing assembly consisting of a movable blade, a blade magnet, an electromagnet, and a controller. The controller alters the direction of the electromagnet's poles to drive the movable blade's reciprocating motion, providing sawing functionality. Overall, this invention integrates both shearing and sawing modes into a single tool, adapting to the needs of processing different parts of fish.
[0033] This invention employs a structure where the cutting edge of the movable blade mates with the base blade, featuring sharp, serrated edges. This increases localized pressure on the cutting edge and produces a subtle sawing effect. Overall, this invention enables better cutting and separation of tough tissues such as fish skin and fascia during shearing or sawing.
[0034] This invention employs a structure in which a cover and a functional blade enclose a liquid accumulation cavity. This cavity can be connected to an external suction device through a discharge port, generating negative pressure suction. It also utilizes a sponge-like structure with multiple pores on the movable blade, whose internal pores communicate with the liquid accumulation cavity, allowing it to absorb liquid and act as a drainage channel. Overall, this invention can promptly guide and collect some of the blood, bodily fluids, and other liquids generated during the cutting process away from the cutting area, helping to maintain a relatively clean working surface.
[0035] This invention employs an angle sensor mounted on the rotating shaft to monitor the opening and closing angle between the base blade and the functional blade in real time. It also features an electrical connection between the angle sensor and a controller, configured to adjust the electromagnet's energizing frequency based on the angle, thus linking the opening and closing amplitude of manual cutting with the sawing intensity. Overall, this invention dynamically adjusts the reciprocating motion frequency of the sawing component according to the user's operational intentions, for example, increasing the sawing frequency to assist cutting during forceful shearing. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 This is a schematic diagram of a pair of scissors used for fish processing.
[0038] Figure 2 This is a schematic diagram of a scissor lift structure;
[0039] Figure 3 A schematic diagram of the sawing assembly mounted on the functional blade structure;
[0040] Figure 4 for Figure 3 Top view of the sawing assembly mounted on the functional blade.
[0041] Figure label:
[0042] 1-Scissors holder; 11-Basic blade; 111-First handle; 12-Functional blade; 121-Guide groove; 122-Second handle; 13-Spindle; 14-Return spring;
[0043] 2-Sawing assembly; 21-Modible blade; 211-Guide block; 22-Blade magnet; 23-Electromagnet; 24-Shield; 241-Discharge port; 25-Angle sensor. Detailed Implementation
[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0045] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0047] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limitations on this utility model.
[0048] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation on this utility model.
[0049] The embodiments of this utility model will be described in detail below.
[0050] This utility model discloses a pair of scissors for fish processing.
[0051] Figure 1 This is a schematic diagram of a pair of scissors used for fish processing. Figure 2 This is a schematic diagram of the scissor bracket 1.
[0052] The scissor frame 1 forms the main frame, and its function is to provide basic support and a fulcrum for the shearing action. In this embodiment, the scissor frame 1 mainly includes a basic blade 11, a functional blade 12, and a rotating shaft 13.
[0053] The basic blade 11 and the functional blade 12 are rotatably connected together via a pivot 13, allowing them to open and close around the pivot 13 like traditional scissors, thus cutting the fish meat. The pivot 13 serves as the center of relative rotation between the basic blade 11 and the functional blade 12 and bears the shearing torque during cutting.
[0054] In terms of ergonomics, the basic blade 11 has a first handle 111 at its end, and the functional blade 12 has a corresponding second handle 122 at its end. The first handle 111 and the second handle 122 constitute the user's grip. To reduce operator fatigue and improve ease of use, a return spring 14 is installed between the first handle 111 and the second handle 122. The function of the return spring 14 is to provide elastic restoring force, causing the first handle 111 and the second handle 122 to tend to move away from each other in a natural, unforced state. In this way, after the user completes a cut and releases their hand, the scissors can automatically open to the initial position under the elastic force of the return spring 14, preparing for the next cutting action and reducing the force required for the hand to continuously open.
[0055] To further enhance grip comfort and anti-slip performance, especially in wet environments, the outer surfaces of the first handle portion 111 and the second handle portion 122 are covered with a silicone anti-slip sleeve with a thickness of not less than 2mm. The function of this silicone anti-slip sleeve is to increase the static friction between the handle and the palm, and to provide soft cushioning to distribute pressure.
[0056] Figure 3 A schematic diagram of the sawing assembly 2 mounted on the functional blade structure; Figure 4 for Figure 3 Top view of the sawing assembly mounted on the functional blade.
[0057] The sawing assembly 2 provides reciprocating sawing motion to assist in processing hard tissues such as fish bones. The sawing assembly 2 mainly includes a movable blade 21, a blade magnet 22, an electromagnet 23, and a controller (not shown in the figure).
[0058] The movable blade 21 is slidably mounted on the functional blade 12, so that the movable blade 21 can reciprocate linearly along the surface of the functional blade 12.
[0059] To ensure the stability of the reciprocating motion of the movable blade 21, a guide groove 121 is provided on the functional blade 12, and a guide block 211 adapted to the guide groove 121 is provided on the movable blade 21. The guide block 211 is embedded in the guide groove 121, and the two form a sliding fit. The function of the guide groove 121 and the guide block 211 is to guide and limit the movement path of the movable blade 21, preventing it from swaying, warping or jamming during reciprocating motion, and ensuring the effective transmission of sawing force.
[0060] In this embodiment, the guide groove 121 is a straight groove directly formed on the body of the functional blade 12, and its cross-sectional shape is rectangular. In other embodiments, an independent guide rail component can also be used, which has the guide groove 121 and is fixed to the functional blade 12 by screws or inlay. The guide block 211 can be made of wear-resistant engineering plastic to reduce frictional resistance and wear. The fit clearance between the guide block 211 and the guide groove 121 can be controlled between 0.05mm and 0.2mm to balance the flexibility and stability of the moving blade 21.
[0061] The blade magnet 22 is fixedly mounted on the movable blade 21, while the electromagnet 23 is fixedly mounted on the functional blade 12. The blade magnet 22 and the electromagnet 23 are spatially opposite each other, and the electromagnet 23 is electrically connected to the controller via a wire. The controller can be a microcontroller board, whose function is to output pulse current with variable frequency and direction.
[0062] When the controller changes the direction of the current supplied to the electromagnet 23, the polarity of the magnetic field generated by the electromagnet 23 changes accordingly, thereby generating alternating attraction and repulsion forces on the blade magnet 22 fixed on the movable blade 21. This magnetic force directly drives the movable blade 21 to make continuous reciprocating linear motion relative to the functional blade 12, realizing the sawing function. This direct electromagnetic drive method eliminates intermediate transmission mechanisms such as motors and crank connecting rods, making the structure relatively simple.
[0063] In this embodiment, there is one electromagnet 23; in other embodiments, in order to obtain a greater driving force or achieve a smoother bidirectional drive, there may be two or four electromagnets 23, which are arranged on the movement path of the movable blade 21.
[0064] To better integrate the sawing function with the traditional shearing function, the movable blade 21 is positioned on the side of the functional blade 12 facing the base blade 11. This allows the cutting edges of the base blade 11 and the movable blade 21 to be spatially close to each other and form a shearing pair. When the user grips the scissors, the cutting edges of the base blade 11 and the functional blade 12 perform the primary shearing action; simultaneously, the activated sawing assembly 2 drives the movable blade 21 to reciprocate, causing the cutting edge of the movable blade 21 to produce a microscopic sawing effect relative to the cutting edge of the base blade 11. The two work together to cut hard objects such as fish bones and fish heads with less effort.
[0065] To further enhance the cutting effect, the cutting edge of the movable blade 21, which mates with the base blade 11, can be machined into a sharp tooth shape. This toothed structure increases the local pressure on the cutting edge and generates a slight sawing effect during relative movement. The principle is to break down tough tissue fibers through alternating stress concentration from multiple tooth tips. In this embodiment, the teeth are continuous triangular fine teeth; in other embodiments, they can be discontinuous wolf-tooth-like or wavy teeth. This helps to produce better cutting and separation when dealing with tough tissues such as fish skin and fascia.
[0066] To enhance the intelligence of the operation, the sawing assembly 2 may further include an angle sensor 25. The angle sensor 25 is positioned between the base blade 11 and the functional blade 12, and is mounted on the rotating shaft 13. Its function is to monitor the opening and closing angle between the base blade 11 and the functional blade 12 in real time. The angle sensor 25 is electrically connected to the controller, feeding back the detected angle signal to the controller. The controller is further configured to dynamically adjust the frequency of the pulse current output to the electromagnet 23 based on the magnitude of this angle.
[0067] Specifically, when the user grips the scissors tightly, reducing the opening angle, the controller can correspondingly increase the energizing frequency of the electromagnet 23, thereby accelerating the reciprocating motion frequency of the moving blade 21 and providing stronger sawing assistance. When the scissors open, increasing the angle, the frequency can be reduced or the drive can be stopped. This design correlates the manual cutting force with the intensity of the electric sawing, allowing the tool to better respond to the user's cutting intentions. Its mechanism lies in using the angle signal as feedback, forming a simple closed-loop control. In this embodiment, the angle sensor 25 uses a rotary potentiometer or a photoelectric encoder; in other embodiments, a non-contact Hall sensor combination or a magnetic encoder can also be used to monitor angle changes to improve durability.
[0068] Considering the watery and mucous environment of fish processing, in order to protect the blade magnet 22 of the sawing assembly 2 and improve hygiene, the sawing assembly 2 may further include a shield 24. The shield 24 is mounted on the functional blade 12 and maintains a sliding engagement with the side of the movable blade 21 in the reciprocating motion direction of the movable blade 21.
[0069] The function of the shield 24 is to form a physical barrier around the movable blade 21 (excluding the cutting edge) together with the functional blade 12. Its main function is to prevent foreign objects such as fish meat and fish skin generated during cutting from entering and getting entangled around the blade magnet 22, affecting movement or causing bacteria to grow.
[0070] In this embodiment, the shield 24 further encloses the side of the functional blade 12 to form a relatively closed liquid accumulation cavity. This liquid accumulation cavity is connected to an external vacuum device (such as a small diaphragm vacuum pump) via a drain port 241. The drain port 241 connects the liquid accumulation cavity to a negative pressure source, and its aperture can be in the range of 3mm to 6mm. Meanwhile, the movable blade 21 in this embodiment is made of a material with porous water-permeable properties. The movable blade 21 is constructed in a sponge-like shape, with interconnected pores inside. These internal pores maintain communication with the liquid accumulation cavity formed by the shield 24.
[0071] When the external suction device is activated, a negative pressure is generated in the liquid accumulation cavity. Blood, tissue fluid, and other liquids generated at the cutting site are drawn into the pores of the movable blade 21 through capillary action and guided into the liquid accumulation cavity. Finally, they are discharged into the collection container through the outlet 241. The function of this structure is to promptly guide the liquid generated during cutting away from the work area, helping to keep the blade and working surface relatively clean and dry. Its principle is based on active drainage using negative pressure and capillary action.
[0072] To reduce the adhesion of fish meat, fat, and other substances to the blade surface, making cutting smoother and facilitating subsequent cleaning, the cutting edges of the base blade 11 and the movable blade 21 are coated with a Teflon-based composite coating. This coating utilizes its extremely low surface energy to achieve an anti-stick and easy-to-clean effect, with a coefficient of friction below 0.2. In this embodiment, the coating thickness is not less than 0.05 mm, typically between 0.05 mm and 0.15 mm, for example, 0.08 mm, to ensure the continuity and durability of the coating.
[0073] In summary, the sawing component 2 provided by this utility model for fish processing includes a movable blade 21 driven by an electromagnet 23 and a blade magnet 22, which can adapt to the needs of processing different parts of fish, such as soft meat and hard bones. Furthermore, the feedback control structure of the angle sensor 25 has a positive effect on improving the continuity of the work process.
[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. Scissors for processing fish, characterized in that, include: The scissor holder (1) includes a base blade (11) and a functional blade (12); the base blade (11) and the functional blade (12) are rotatably connected by a pivot (13); The sawing assembly (2) includes a movable blade (21), a blade magnet (22), and an electromagnet (23); the movable blade (21) is slidably mounted on the functional blade (12); the blade magnet (22) is fixedly mounted on the movable blade (21); and the electromagnet (23) is fixedly mounted on the functional blade (12). The controller is electrically connected to the electromagnet (23); in, The controller changes the direction of the magnetic poles of the electromagnet (23) to attract or repel the blade magnet (22), thereby driving the movable blade (21) to reciprocate relative to the functional blade (12).
2. The scissors for fish processing according to claim 1, characterized in that, The movable blade (21) is disposed on the side of the functional blade (12) facing the base blade (11); the cutting edge of the base blade (11) and the movable blade (21) cooperate to form a shearing pair.
3. The scissors for fish processing according to claim 2, characterized in that, The cutting edge of the movable blade (21) that mates with the base blade (11) has sharp teeth.
4. The scissors for fish processing according to claim 1, characterized in that, The sawing assembly (2) further includes: An angle sensor (25) is disposed between the base blade (11) and the functional blade (12) and sleeved on the rotating shaft (13) for monitoring the opening and closing angle between the base blade (11) and the functional blade (12); the angle sensor (25) is electrically connected to the controller; The controller is further configured as follows: The frequency of the electromagnet (23) is adjusted according to the included angle, thereby controlling the reciprocating frequency of the movable blade (21).
5. The scissors for fish processing according to claim 1, characterized in that, The sawing assembly (2) further includes: A shield (24) is mounted on the functional blade (12) and slides in cooperation with the movable blade (21) in the reciprocating motion direction of the movable blade (21) to prevent the blade magnet (22) from being entangled by the fish meat.
6. The scissors for fish processing according to claim 5, characterized in that: The shield (24) and the functional blade (12) enclose a liquid accumulation cavity; the liquid accumulation cavity is connected to an external air extraction device through a discharge port (241); The movable blade (21) is sponge-like and has multiple cavities. Its internal pores are connected to the liquid accumulation cavity, which is used to guide the liquid generated during cutting to the liquid accumulation cavity.
7. The scissors for fish processing according to claim 1, characterized in that: The functional blade (12) is provided with a guide groove (121); The movable blade (21) is provided with a guide block (211) that is adapted to the guide groove (121). The guide block (211) and the guide groove (121) form a sliding fit to guide the movable blade (21) to reciprocate relative to the functional blade (12).
8. The scissors for fish processing according to claim 1, characterized in that: The base blade (11) is provided with a first shank (111). The functional blade (12) is provided with a second handle (122); A return spring (14) is installed between the first handle (111) and the second handle (122); the return spring (14) causes the first handle (111) and the second handle (122) to tend to move away from each other.
9. The scissors for fish processing according to claim 8, characterized in that, The outer surfaces of the first handle (111) and the second handle (122) are covered with a silicone anti-slip sleeve with a thickness of not less than 2 mm.
10. The scissors for fish processing according to claim 1, characterized in that, The cutting edges of the base blade (11) and the movable blade (21) are coated with a Teflon-based composite coating with a thickness of not less than 0.05 mm.