Automatic eel belly cutting device
The automatic eel gutting device, which uses a transmission belt and pressure roller clamping mechanism, solves the problems of difficulty in manually placing eels and inaccurate clamping, and realizes automated gutting processing, improving efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGLE JUQUAN FOOD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing eel gutting devices require precise manual placement of the eel, which is difficult to operate and prone to misalignment during cutting due to improper clamping, affecting processing efficiency and product quality.
Design an automatic eel gutting device that uses a transmission belt and feeding trough in combination with a "V"-shaped storage space and pressure roller clamping mechanism to achieve automatic feeding and precise clamping of eels, and use a rotating blade for gutting.
This technology enables automated gutting of eels, reducing the difficulty of manual operation, improving production efficiency and product qualification rate, ensuring the accuracy of the cutting position, and reducing the defect rate.
Smart Images

Figure CN224179052U_ABST
Abstract
Description
An automatic eel gutting device Technical Field
[0001] This utility model relates to the field of eel processing technology, and in particular to an automatic eel gutting device. Background Technology
[0002] As one of the main freshwater farmed fish species in my country, eel is rich in various nutrients and has the effects of nourishing blood and removing dampness. It is a good nutritional supplement for patients with chronic illness, weakness, anemia, and tuberculosis. Eel contains abundant high-quality protein and various essential amino acids. In particular, eel contains a rare protein called West River Locke protein, which has a good effect on strengthening the kidneys and improving sexual function. It is a health food for young couples and middle-aged and elderly people.
[0003] Eels typically require processing, such as gutting, before cooking. Currently, most eel gutting is done manually. To improve processing efficiency, devices for eel gutting have emerged. For example, Chinese patent CN222366967U discloses an automatic eel gutting device, comprising a main body with a clamping assembly and a gutting assembly mounted on top. The clamping assembly includes a first motor, the upper surface of which is fixedly connected to the lower surface of the main body. The output shaft of the first motor passes through the lower surface of the main body and is fixedly connected to a connecting plate. An electric push rod is fixedly connected to the upper surface of the connecting plate. A fixed plate is fixedly connected to one end of the connecting plate, and a fixed rod is fixedly connected inside the fixed plate. A movable rod is movably connected to the outer surface of the fixed rod, and a connecting block is movably connected to the other end of the movable rod. A pressure plate is fixedly connected to the lower surface of the connecting block, and a support plate is fixedly connected to the surface of the fixed plate.
[0004] In the above technical solution, the eels need to be manually grasped and placed onto the support plate one by one before gutting. However, because the surface of the eel is smooth, it is easy to slip out of the hand when grasped manually. In actual application, it is difficult to place it accurately on the support plate, which can easily lead to improper clamping and subsequent misalignment during cutting, resulting in defective products. Summary of the Invention
[0005] This invention provides an automatic eel gutting device, which helps to solve the problem that some current eel gutting machines require precise manual placement of the eel, which is difficult to operate and prone to misalignment due to improper clamping.
[0006] This utility model is implemented as follows:
[0007] An automatic eel gutting device includes a frame with a horizontal worktable at the top. A feeding trough is located at the center of the worktable, with its length parallel to the front-back direction and extending longitudinally through the worktable. A transmission belt is located at the bottom of the feeding trough, and the transmission belt is an annular structure connected to a rotating drive component. The top of the transmission belt is horizontal and partially extends to the flange structure above the feeding trough. A left and right stop are located on the left and right sides of the worktable, forming a "V"-shaped storage space with the left and right stops and the adjacent sides of the transmission belt. When the length of the eel is parallel to the front-back direction, it can be placed into the storage space. Several pressure rollers are arranged at intervals above the storage space, and the pressure rollers are connected to the worktable via a bracket. The pressure rollers and the storage space form a clamping gap for restraining the eel. At least one pressure roller near the rear end of the clamping gap is equipped with a blade, which is an annular structure fixed at the center of the outer periphery of the pressure roller. The blade can rotate with the pressure roller to gut the restrained eel.
[0008] Based on the above technical solution, the frame includes several support rod structures fixed to the bottom of the workbench, and adjacent support rod structures are connected by crossbeams.
[0009] Based on the above technical solution, a limiting groove is provided at the center of the outer peripheral surface of the pressure roller, and the limiting groove makes the outer peripheral surface of the pressure roller form a
[0010] "U" shaped structure.
[0011] Based on the above technical solution, the support is a gantry structure with a vertically downward connecting rod on the support. A mounting frame is provided at the bottom of the connecting rod, and the pressure roller is hinged to the bottom of the mounting frame. The rotation axis of the pressure roller is horizontally set and parallel to the left and right directions.
[0012] Based on the above technical solution, the connecting rod is a multi-segment structure capable of longitudinal extension and retraction, and is fitted with a compression spring.
[0013] Based on the above technical solution, a pressure roller with a cutting tool is connected to a lifting drive component.
[0014] Based on the above technical solution, the surface of the conveyor belt is provided with anti-slip texture.
[0015] Based on the above technical solution, a position adjustment structure is provided at the connection between the left stop, the right stop, the bracket and the worktable.
[0016] Based on the above technical solution, the cutting tool includes a tool holder for connecting the pressure roller. The outer end of the tool holder is provided with a ring-shaped blade. The tool holder is provided with extensions on the left and right sides where it connects with the blade. The ends of the extensions are pointed structures, and the left and right outer sides of the extensions are guide slopes. When the blade cuts the belly of the eel, the extensions are inserted into the cutting slit, and the guide slopes form an outward expansion control structure of the eel's belly on the left and right sides of the cutting slit.
[0017] Compared with the prior art, the present invention has at least the following advantages:
[0018] 1. By setting up a transmission belt and feeding chute, along with left and right stops to form a "V"-shaped storage space, the feeding of eels is easier and more efficient compared to traditional opening and closing clamping plates. Combined with pressure rollers to form a clamping mechanism, it achieves automatic feeding of eels. There is no need for manual handling to individually grab eels and place them in specific positions, greatly reducing the difficulty of manual operation, minimizing the phenomenon of eels falling off after feeding, and improving production efficiency.
[0019] 2. The "V"-shaped storage space and the clamping gap formed by the pressure rollers can accurately clamp the eel, preventing it from moving during the gutting process. This ensures the accuracy of the cutting position, reduces the occurrence of cutting misalignment, and improves the product qualification rate.
[0020] 3. The blades follow the rotation of the pressure rollers to gut the eels, enabling continuous and efficient gutting operations. Compared to manual gutting and some existing mechanical gutting devices, this significantly shortens gutting time and improves production efficiency.
[0021] 4. The device structure of this utility model is relatively simple, and the connections and transmission relationships between the components are clear and easy to understand, facilitating installation, debugging, and maintenance. This reduces the equipment failure rate and maintenance costs, and extends the equipment's service life. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 is a schematic diagram of the structure of an automatic eel gutting device in one embodiment;
[0024] Figure 2 is a partial structural schematic diagram of the limiting component and pressure roller in Figure 1;
[0025] Figure 3 is a schematic diagram of the clamping gap structure;
[0026] Figure 4 is a partial structural diagram of the anti-slip texture on the transmission belt;
[0027] Figure 5 is a schematic diagram of the installation position of the tension spring in one embodiment;
[0028] Figure 6 is a cross-sectional view of the cutting tool in one embodiment.
[0029] The diagram is labeled as follows: 100, frame; 110, worktable; 120, feed chute; 130, first adjustment hole; 140, second adjustment hole; 200, limiting component; 210, left stop; 220, right stop; 230, transmission belt; 231, anti-slip texture; 240, tension spring; 300, bracket; 310, connecting rod; 320, mounting bracket; 330, pressure spring; 400, pressure roller; 410, limiting groove; 500, cutting tool; 510, tool holder; 511, extension; 512, guide slope; 520, cutting edge; 600, lifting cylinder. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0031] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0034] Example 1: Referring to Figures 1 to 4, this example discloses an automatic eel gutting device to solve the problem that some current eel gutting machines require precise manual placement of the eels, which is difficult to operate and prone to misalignment during cutting due to improper clamping. This device achieves automatic feeding, precise clamping, and efficient gutting of the eels, improving the quality and efficiency of eel gutting processing and reducing labor costs and defect rates.
[0035] As shown in Figure 1, the automatic eel gutting device specifically includes a frame 100, with a horizontal worktable 110 mounted on top of the frame 100. The frame 100 includes several support rod structures fixed to the bottom of the worktable 110, and adjacent support rod structures are connected by crossbeams. The frame 100 provides support and fixation for the entire device, while the worktable 110 is the main operating platform for eel gutting.
[0036] A feeding trough 120 is provided at the center of the workbench 110. The length of the feeding trough 120 is parallel to the front-back direction of the workbench 110, and the feeding trough 120 is a strip-shaped through-hole structure that runs longitudinally through the workbench 110. The feeding trough 120 provides working space for the feeding drive structure.
[0037] A transmission belt 230 is installed at the bottom of the feeding trough 120. The transmission belt 230 is an annular belt structure connected to a rotary drive component. The top of the transmission belt is horizontal and partially extends to the flange structure above the feeding trough 120. The rotary drive component can be a power device such as a motor, which drives the transmission belt 230 to move, forming a support and movement mechanism for the eels at the bottom, thus realizing automatic feeding of the eels. The eels are placed on the transmission belt 230 and enter the evisceration area as the transmission belt 230 moves.
[0038] To improve feeding stability and prevent slippage and idle rotation, the surface of the conveyor belt is provided with anti-slip texture 231, as shown in Figure 4. The anti-slip texture 231 is specifically an irregular dot-shaped groove.
[0039] As shown in Figures 1, 2, and 3, the workbench 110 is equipped with a left stop 210 and a right stop 220 on the left and right sides of the feeding trough 120. The left stop 210, the right stop 220, and the transmission belt 230 constitute a limiting member 200. The three adjacent sides form a "V"-shaped storage space, which can be placed into the storage space when the length direction of the eel is parallel to the front-back direction. This "V"-shaped storage space design can initially position and constrain the eel, so that the eel can maintain a relatively stable position when entering the gutting processing area, which is convenient for subsequent clamping and gutting operations.
[0040] Furthermore, five pressure rollers 400 spaced apart are installed above the storage space. The pressure rollers 400 are connected to the worktable 110 via a bracket 300, and the pressure rollers 400 and the storage space form a clamping gap to restrain the eel. When the eel enters the storage space, the pressure rollers 400 exert a downward pressure force, clamping the eel between the pressure rollers 400 and the storage space, forming a stable clamping state. This clamping method prevents the eel from moving during the gutting process, ensuring the accuracy of the gutting.
[0041] Furthermore, a limiting groove 410 is provided at the center of the outer peripheral surface of the pressure roller 400, which makes the outer peripheral surface of the pressure roller 400 form a "U" shape. This structure makes the contour of the clamping gap more adaptable to the body shape of the eel, thereby improving the clamping stability.
[0042] Furthermore, the support 300 is a gantry structure, with a vertically downward-facing connecting rod 310 on it. A mounting bracket 320 is located at the bottom of the connecting rod 310, and the pressure roller 400 is hinged to the bottom of the mounting bracket 320. The rotation axis of the pressure roller 400 is horizontally positioned and parallel to the left-right direction. The connecting rod 310 is a multi-segment structure capable of longitudinal extension and retraction, and is fitted with a pressure spring 330. This gives the pressure roller 400 a certain degree of automatic tension adjustment capability during clamping, further improving clamping stability.
[0043] At least one pressure roller 400 near the rear end of the clamping gap is equipped with a cutter 500. The cutter 500 is a ring structure fixed at the center of the outer periphery of the pressure roller 400. The cutter 500 can rotate with the pressure roller 400 to perform evisceration on the constrained eel. In this embodiment, the cutter 500 is provided on the pressure roller 400 at the fourth position (i.e., the second to last position), and this area serves as the evisceration processing area. When the pressure roller 400 rotates, the cutter 500 rotates accordingly, cutting the belly of the eel to achieve automatic evisceration.
[0044] It should be noted that the pressure roller 400 with the blade 500 is connected to a lifting drive component. In this embodiment, the lifting drive component is a lifting cylinder 600, which is used to control the height of the blade 500 in a timely manner. In specific implementation, a corresponding position sensor is set on the front support 300 to detect the feeding position of the eel, which helps to control the rise of the blade 500 so that the head of the eel passes through first, and then the blade 500 descends to accurately cut the belly of the eel.
[0045] As shown in Figure 1, in this embodiment, the left stop 210, right stop 220, and bracket 300 are provided with position adjustment structures at their connections to the worktable 110. Specifically, the left stop 210 and right stop 220 are provided with first adjustment holes 130 at their connections to the worktable 110, and the bracket 300 is provided with second adjustment holes 140 at its connection to the worktable 110. Both the first adjustment holes 130 and the second adjustment holes are strip-shaped through-hole structures, which, through cooperation with bolt assemblies, enable fine-tuning of the position. This facilitates flexible adjustment according to the actual specifications of the eels being processed, improving the applicability of the device.
[0046] In the specific implementation process, the staff put the eel belly-up and head-forward into the storage space. Then the conveyor belt moves the eel, and the pressure roller 400 clamps and restrains the eel. After reaching the evisceration processing area, the pressure roller 400 with the blade 500 is driven down by the lifting drive to eviscerate the eel. During the evisceration process, the pressure rollers 400 on the front and rear sides provide auxiliary pressure to improve the accuracy and stability of the cutting.
[0047] Example 2: Based on Example 1, and as shown in Figure 5, in this example, a tension spring 240 is provided between the left stop 210, the right stop 220 and the worktable 110. The two ends of the tension spring 240 in the extension and retraction direction respectively abut against the stop and the worktable 110, so that the left stop 210 and the right stop 220 have an elastic clamping effect and improve clamping stability.
[0048] Example 3: Based on Example 1, and referring to Figure 6, the cutter 500 includes a cutter holder 510 for connecting the pressure roller 400. The outer end of the cutter holder 510 is provided with a ring-shaped cutting edge 520. Extensions 511 are provided on the left and right sides of the connection point between the cutter holder 510 and the cutting edge 520. The ends of the extensions 511 are pointed, and the left and right outer sides of the extensions 511 are guide slopes 512. When the cutting edge 520 cuts through the eel's belly, the extensions 511 insert into the cutting slit, and the guide slopes 512 form an outward expansion control structure of the eel's belly on both sides of the cutting slit. This structure ensures that the belly does not deform messily during cutting, thus preventing the cutting quality from being affected.
[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An automatic eel gutting device, characterized in that, The system includes a frame (100), a horizontal worktable (110) on top of the frame (100), a feeding trough (120) at the center of the worktable (110), the length of the feeding trough (120) being parallel to the front-back direction of the worktable (110), and the feeding trough (120) extending longitudinally through the worktable (110); a transmission belt (230) at the bottom of the feeding trough (120), the transmission belt (230) being an annular belt structure connected to a rotating drive component, the top of the transmission belt being a horizontal section, and partially extending to the flange structure above the feeding trough (120); a left stop (210) and a right stop (220) are provided on the left and right sides of the worktable (110) on the feeding trough (120), the left stop (210)... The right stop (220) and the transmission belt (230) form a "V"-shaped storage space on their adjacent sides. When the length direction of the eel is parallel to the front-to-back direction, it can be placed into the storage space. Several pressure rollers (400) are arranged at intervals on the front and back of the storage space. The pressure rollers (400) are connected to the worktable (110) through the bracket (300). The pressure rollers (400) and the storage space form a clamping gap for restraining the eel. At least one pressure roller (400) near the rear end of the clamping gap is provided with a knife (500). The knife (500) is a ring structure fixed at the center of the outer periphery of the pressure roller (400). The knife (500) can rotate with the pressure roller (400) to perform evisceration on the eel in the restrained state.
2. The automatic eel gutting device according to claim 1, characterized in that, The frame (100) includes several support rod structures fixed to the bottom of the workbench (110), and adjacent support rod structures are connected by crossbeams.
3. The automatic eel gutting device according to claim 1, characterized in that, The pressure roller (400) has a limiting groove (410) at the center of its outer peripheral surface, which makes the outer peripheral surface of the pressure roller (400) form a "U" shaped structure.
4. The automatic eel gutting device according to claim 3, characterized in that, The bracket (300) is a gantry structure. The bracket (300) is provided with a vertically downward connecting rod (310). The bottom of the connecting rod (310) is provided with a mounting bracket (320). The bottom of the mounting bracket (320) is hinged to the pressure roller (400). The rotation axis of the pressure roller (400) is horizontally set and parallel to the left and right directions.
5. An automatic eel gutting device according to claim 4, characterized in that, The connecting rod (310) is a multi-segment structure capable of longitudinal extension and retraction, and is fitted with a compression spring (330).
6. The automatic eel gutting device according to claim 1, characterized in that, The pressure roller (400) equipped with a cutting tool (500) is connected to a lifting drive component.
7. The automatic eel gutting device according to claim 1, characterized in that, The surface of the conveyor belt is provided with anti-slip texture (231).
8. An automatic eel gutting device according to claim 1, characterized in that, The left stop (210), right stop (220), support (300) and worktable (110) are provided with position adjustment structures.
9. An automatic eel gutting device according to claim 1, characterized in that, The cutting tool (500) includes a tool holder (510) for connecting the pressure roller (400). The outer end of the tool holder (510) is provided with a ring-shaped cutting edge (520). The tool holder (510) is provided with extensions (511) on the left and right sides of the connection between itself and the cutting edge (520). The end of the extension (511) is a pointed structure. The left and right sides of the extension (511) are guide slopes (512). When the cutting edge (520) cuts the belly of the eel, the extension (511) is inserted into the cutting slit. The guide slopes (512) form an outward expansion control structure of the eel's belly on the left and right sides of the cutting slit.
Citation Information
Patent Citations
Automatic eel belly cutting device
CN222366967U