Full-automatic river crab processing device
Through the modular design of the fully automatic river crab processing device, the use of hydraulic systems and precision tools, efficient automation of river crab carapace removal, crab roe collection and crab cheek removal is achieved, solving the problems of inefficiency and crab meat pollution in the existing technology, and improving production efficiency and food safety.
Patent Information
- Application Number
- CN202510667602.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2025-07-29
AI Technical Summary
The existing river crab processing equipment is inefficient in the removal of carapace and crab roe collection, insufficient automation, and has problems such as crab meat pollution and workers' health threats.
A fully automatic river crab processing device is designed, including a clamping mechanism, a carapace removal device, a crab roe collection device, a crab cheek removal device and a shell and meat separation device. It adopts a modular design and uses hydraulic system and precision knives to achieve the precise removal of river crab carapace and efficient collection of crab roe, ensuring the integrity of crab meat.
It improves the degree of automation and production efficiency of river crab processing, reduces manual intervention, ensures food safety and the integrity of crab meat, and is suitable for flexible configurations in large-scale aquatic processing plants.
Smart Images

Figure CN120381046A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of food processing equipment, especially automated equipment related to the processing of Chinese mitten crabs. Specifically, it is a fully automatic mechanized device for processing Chinese mitten crabs, covering key technologies such as the clamping of Chinese mitten crabs, the removal of the carapace, the collection of crab roe, the removal of crab gills, and the separation of the shell and meat. Background Art
[0002] Chinese mitten crabs (Eriocheir sinensis) are widely used in the catering and aquatic product processing industries due to their delicious meat and rich nutrition. Traditional methods of processing Chinese mitten crabs rely on manual operations. Especially during the processes of carapace removal and crab roe collection, not only is the efficiency low, but also the crab meat is easily contaminated. Moreover, workers are at risk of health problems when working in a humid environment for a long time. Although existing mechanized devices can partially solve these problems, there are still many deficiencies in terms of precision, automation level, and equipment stability. The equipment in the prior art has a complex structure, usually requires a high degree of manual intervention, and has poor coordination between different processing steps, resulting in low overall efficiency.
[0003] Therefore, developing a fully automatic Chinese mitten crab processing device that can smoothly complete the whole process from carapace removal to crab roe collection, crab gill removal, and shell and meat separation, improve efficiency, and reduce manual intervention has become an urgent problem in the industry. Summary of the Invention
[0004] The purpose of the present invention is to provide a fully automatic Chinese mitten crab processing device to solve the deficiencies in the prior art. The device of the present application can efficiently and precisely complete the work of carapace removal, crab roe collection, crab gill removal, and shell and meat separation of Chinese mitten crabs, significantly improve production efficiency, reduce damage to crab meat, and ensure food safety during the processing. Through modular design, the device can be flexibly configured according to requirements to meet the automated production needs of processing factories of different scales.
[0005] The present invention is realized through the following technical solutions:
[0006] A fully automatic Chinese mitten crab processing device includes a clamping mechanism (5), a carapace removal device (2), a crab roe collection device (8), a crab gill removal device, and a shell and meat separation device. The above parts can work independently or in cooperation, greatly improving the processing efficiency and ensuring the integrity of the crab meat. The overall frame (7) and the transmission device (6) form the overall structure. The carapace removal device (2) and the Chinese mitten crab carapace collection box (4) are arranged on the overall frame (7), and the clamping mechanism (5) is arranged on the transmission device (6). The clamping mechanism (5) is used to fix the Chinese mitten crab and perform carapace removal processing. Along with the removal of the carapace of the Chinese mitten crab, the transmission device (6) conveys the Chinese mitten crab with the carapace removed to the crab roe blowing device composed of an air pump (1), and the collected crab roe is collected by the crab roe collection device (9). Finally, the Chinese mitten crab is conveyed to the crab body steaming device (8).
[0007] As a preferred embodiment, the overall device has the conveying device (6) as the main body, with two built-in pulleys (21) fixed to the overall frame (7) on the shaft through bearings. A pulley sleeve (22) is installed on the overall frame (7) outside the two pulleys (21) and fixed by bolts. The pulley sleeves (22) are connected by a slide bar (20). A belt is laid on the conveying device (6), and a clamping mechanism (5) is installed at intervals on the belt and fixed to the belt by bolts.
[0008] As a preferred embodiment, a spring (25) is welded in the middle of the clamping mechanism (5) to ensure firm clamping of the crab carapace (18). Brackets (24) are installed on the slide bars (20) on both sides of the upper belt to support and fix the crab carapace removing device (2). The base of the crab carapace removing device (2) is embedded in the slide bar (20).
[0009] As a preferred embodiment, a carapace collection box (4) is fixed to the side of the frame by bolts, and a wooden baffle (19) is fixed in front of the frame to prevent the air pump (1) from blowing the crab roe out during collection. A crab roe collection box (9) is placed under the pipeline of the air pump (1). On the right side, the crab gill collection box (17) is fixed between the frame clamping plates (23) welded to the slide bar (20) for collecting crab gills. A crab body steaming device (8) is placed at the far right of the overall frame (7), and the overall frame (7) is supported by four support legs (26) welded to the lower part of the frame.
[0010] As a preferred embodiment, the crab carapace removing device (2) consists of eight parts. A rotating platform (10) has a base (11) embedded in it, which is connected by a bearing and can rotate freely. The first hydraulic rod is fixed on the rotating platform (10) and can adjust the height of the moving arm (13) up and down, and is bolted to the moving arm (13). The end of the moving arm (13) is connected to the second hydraulic rod (14), and the lower end is bolted to the end of the third hydraulic rod (15). The cutter (16) is bolted to the second hydraulic rod (14) and the third hydraulic rod (15). The insertion, rotation, and lifting of the hydraulic rods are controlled to remove the crab carapace (18).
[0011] As a preferred embodiment, the crab carapace removing device (2) consists of the first hydraulic rod (12), the second hydraulic rod (14), the third hydraulic rod (15), and the moving arm (13). The first hydraulic rod (12) and the moving arm (13) are arranged on the rotating platform (10) and the base (11) for adjusting the position during carapace removal. At the same time, the carapace removing cutter (16) is arranged at the ends of the second hydraulic rod (14) and the third hydraulic rod (15). With the cooperation of the clamping mechanism (5), the cutter is inserted into the position of the crab carapace (18), and the carapace is removed by the insertion, rotation, and lifting of the hydraulic rods.
[0012] Working principle of this device: Processing is carried out sequentially through each functional module. First, the hairy crabs enter the processing area through the conveyor belt, and the clamping mechanism firmly fixes the hairy crabs to ensure no displacement during the processing. Then, the hairy crabs enter the carapace removal device. The rotating platform drives the hairy crabs to rotate to the carapace removal position, and the hydraulic system drives the boom to drive the cutter to precisely cut the carapace, ensuring that the carapace is removed while not damaging the crab meat. After the carapace removal is completed, the crab roe collection device immediately collects the crab roe to prevent it from contaminating the crab meat. Subsequently, the crab gill removal device automatically removes the crab gills to ensure that the crab meat part is clean and free of impurities. Finally, the shell and meat separation device effectively separates the crab shell from the crab meat through mechanical operation, ensuring the integrity of the crab meat and facilitating subsequent processing.
[0013] Beneficial effects:
[0014] (1) The technical advantages of the present invention are mainly reflected in modular design, high efficiency, precision, and food safety. Each module can work independently or cooperate according to requirements, greatly improving the flexibility and production efficiency of the device. The combination of the hydraulic system and precision cutters effectively guarantees the precision during the carapace removal process, avoiding the problem of crab meat damage in traditional manual operations. All parts in contact with food are made of materials that meet national food safety standards to ensure hygiene and safety during the processing. At the same time, the device is applicable to large-scale aquatic product processing plants and can be customized according to different scales and requirements, capable of efficiently completing the automatic processing of hairy crabs, reducing manual intervention, and improving production efficiency.
[0015] (2) The fully automatic hairy crab processing device of the present invention can significantly improve the efficiency of the production line, reduce labor costs, and effectively reduce crab meat damage to ensure food safety. The modular design enables the device to switch smoothly between different processing steps, ensuring the efficient execution of each step. Through this device, full-automatic operation can be achieved, reducing manual intervention, improving production stability, and meeting the requirements of modern large-scale hairy crab processing.
[0016] (3) The fully automatic hairy crab processing device of the present invention aims to solve the problems existing in the prior art through modular design and achieve the automation and high efficiency of hairy crab processing. Description of the drawings
[0017] Figure 1 It is a schematic diagram of the overall structure of the hairy crab automatic processing equipment platform.
[0018] Figure 2 It is a side view of the hairy crab automatic processing equipment platform. Specific implementation manners
[0019] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings: These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given. However, the protection scope of the present invention is not limited to the following embodiments.
[0020] As Figure 1 , 2 shown, the automated processing equipment for Chinese mitten crabs of the present invention mainly consists of an overall frame 7 and a transmission device 6 to form an overall framework. A carapace removal device 2 and a Chinese mitten crab carapace collection box 4 are arranged on the overall frame 7, and a clamping mechanism 5 is arranged on the transmission device 6. These two parts are used to fix the Chinese mitten crabs and perform the processing of removing the carapace. Along with the removal of the Chinese mitten crab carapace, the transmission device 6 conveys the Chinese mitten crabs with the carapace removed to the crab roe blowing device composed of an air pump 1, and collects the collected crab roe with a crab roe collection box 8. Finally, the Chinese mitten crabs are conveyed to the crab body steaming device 8.
[0021] The overall device takes the conveyor device (6) as the main body, with two built-in belt pulleys (21) fixed to the overall frame (7) with the shaft through bearings. A belt pulley sleeve (22) is installed outside the two belt pulleys (21) on the overall frame (7) and fixed by bolts. The belt pulley sleeves (22) are connected by a slide bar (20). A belt is laid on the conveyor device (6), and the clamping mechanism (5) is installed at intervals on the belt and fixed to the belt by bolts. A spring (25) is welded in the middle of the clamping mechanism (5) to ensure firm clamping of the Chinese mitten crab carapace (18). Brackets (24) are installed on the slide bars (20) on both sides of the upper belt to support and fix the Chinese mitten crab carapace removal device (2). The base of the Chinese mitten crab carapace removal device (2) is embedded in the slide bar (20). The carapace collection box (4) is fixed to the side of the frame by bolts, and a wooden baffle (19) is fixed in the front of the frame to prevent the air pump (1) from blowing the crab roe into splashes during crab roe collection. The crab roe collection box (9) is placed under the pipeline of the air pump (1). On the right side, the crab gill collection box (17) is fixed between the frame clamping plates (23) welded to the slide bar (20) for collecting crab gills. The crab body steaming device (8) is placed at the far right of the overall frame (7), and the overall frame (7) is supported by four support legs (26) welded under the frame.
[0022] The Chinese mitten crab carapace removal device 2 mainly consists of a first hydraulic rod 12, a second hydraulic rod 14, a third hydraulic rod 15, and a moving arm 13. The first hydraulic rod 12 and the moving arm 13 are arranged on a rotating platform 10 and a base 11 for adjusting the position during carapace removal. At the same time, the carapace removal tool is arranged at the ends of the second hydraulic rod 14 and the third hydraulic rod 15. With the cooperation of the clamping mechanism 5, the tool 16 is inserted into the Chinese mitten crab carapace position 18, and the carapace is removed through the insertion, rotation, and lifting of the hydraulic rods.
[0023] The hairy crab carapace removal device (2) consists of eight parts. A base (11) is embedded in a rotating platform (10) and can rotate freely through a bearing. The first hydraulic rod is fixed on the rotating platform (10) and can adjust the height of the moving arm (13) up and down. It is bolted to the moving arm (13). The end of the moving arm (13) is connected to the second hydraulic rod (14), and the lower end is bolted to the end of the third hydraulic rod (15). The cutter (16) is bolted to the second hydraulic rod (14) and the third hydraulic rod (15). The insertion, rotation, and lifting of the hydraulic rods are controlled to remove the hairy crab carapace (18).
[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.
Claims
1. A full-automatic river crab processing device, characterized in that It includes a clamping mechanism (5), a carapace removal device (2), a crab roe collection device (8), a crab gill removal device, and a shell and meat separation device. The above parts can work independently or collaboratively, greatly improving the processing efficiency and ensuring the integrity of the crab meat. The overall frame (7) and the transmission device (6) constitute the overall structure. The carapace removal device (2) and the river crab carapace collection box (4) are arranged on the overall frame (7), and the clamping mechanism (5) is arranged on the transmission device (6). The clamping mechanism (5) is used to fix the river crab and process the removal of the carapace. Along with the removal of the river crab carapace, the transmission device (6) conveys the river crab with the carapace removed to the crab roe blowing device composed of the air pump (1), and the collected crab roe is collected by the crab roe collection device (9). Finally, the river crab is conveyed to the crab body steaming device (8).
2. The full-automatic river crab processing device according to claim 1, wherein The main body of the overall device is the transmission device (6). There are two built-in pulleys (21), which are fixed to the overall frame (7) with the shaft through bearings. The pulley sleeve (22) is installed outside the two pulleys (21) on the overall frame (7) and fixed by bolts. The pulley sleeves (22) are connected by a slide bar (20). A belt is laid on the transmission device (6), and the clamping mechanism (5) is installed at intervals on the belt and fixed to the belt by bolts.
3. The fully automatic river crab processing device according to claim 1, characterized in that, A spring (25) is welded in the middle of the clamping mechanism (5) to ensure the firmness when clamping the river crab carapace (18). Brackets (24) are installed on the slide bars (20) on both sides of the upper belt to support and fix the river crab carapace removal device (2). The base of the river crab carapace removal device (2) is embedded in the slide bar (20).
4. The fully automatic river crab processing device according to claim 1, wherein, The carapace collection box (4) is fixed to the side of the frame by bolts. A wooden baffle (19) is fixed in the front of the frame to prevent the air pump (1) from blowing the crab roe and splashing it out during the collection of the crab roe. The crab roe collection box (9) is placed under the pipeline of the air pump (1). On the right side, the crab gill collection box (17) is fixed between the frame clamping plates (23) welded on the slide bar (20) for collecting the crab gills. The crab body steaming device (8) is placed at the far right of the overall frame (7). The overall frame (7) is supported by four support legs (26) welded under the frame.
5. The fully automatic river crab processing device according to claim 1, wherein, The river crab carapace removal device (2) consists of eight parts. A rotating platform (10) is embedded with a base (11), which is connected by a bearing and can rotate freely. The first hydraulic rod is fixed on the rotating platform (10) and can adjust the height of the moving arm (13) up and down. It is bolted to the moving arm (13). The end of the moving arm (13) is connected to the second hydraulic rod (14), and the lower end is bolted to the end of the third hydraulic rod (15). The cutter (16) is bolted to the second hydraulic rod (14) and the third hydraulic rod (15). By controlling the insertion, rotation, and lifting of the hydraulic rods, the removal of the river crab carapace (18) is achieved.
6. The full-automatic river crab processing device according to claim 1, characterized in that, The crab carapace removal device (2) is composed of a first hydraulic rod (12), a second hydraulic rod (14), a third hydraulic rod (15) and a boom (13). The first hydraulic rod (12) and the boom (13) are arranged on the rotating platform (10) and the base (11) for adjusting the position during carapace removal. At the same time, the carapace removal tool (16) is arranged at the ends of the second hydraulic rod (14) and the third hydraulic rod (15). With the cooperation of the clamping mechanism (5), the tool is inserted into the crab carapace position (18), and the carapace is removed by the insertion, rotation and lifting of the hydraulic rod.
Citation Information
Patent Citations
Full-automatic crab processing equipment
CN113273601A
Device for separating crab meat
CN113854344A
Device for automatically separating shell and meat of crab
CN118765961A
Integrated circuit chip picks up manipulator
CN207432201U
Crab butchering machine
US5401207A
Cited By
Semi-automatic crab stripping treatment device for processing swimming crabs
CN121312678A