Negative pressure adsorption type fish skin separator and automatic film removing method thereof

Abstract

The present application belongs to the field of aquatic product processing, and particularly relates to a negative pressure adsorption type fish skin separator and an automatic film removing method thereof. In view of the problem that the existing separation equipment is difficult to remove the black film on the surface of fish meat during use, the following scheme is proposed. The device comprises a rack, a feeding conveyor and a discharging conveyor are arranged at the top of the rack, a separation mechanism is arranged between the two conveyors, rotating shafts are rotatably connected to the two sides of the rack, rotating frames on the rotating shafts are provided with a press roller and a brush roller, the press roller and the rotating shaft and the brush roller and the press roller are respectively driven by a belt pulley and a gear; a guide hopper is arranged below the separation mechanism, a water tank is arranged at the bottom of the rack, a filter cylinder is arranged in the water tank, the filter cylinder is linked with a feeding roller, a filter screen and a brush plate are further arranged in the water tank, and air suction pipes are arranged on the two sides of the rack. The device realizes synchronous fish skin separation and black film removal, fish skin is convenient to collect, water resources can be reused, the filtering effect is stable, and the device is suitable for batch fish processing.

Description

Technical Field

[0001] This invention relates to the field of aquatic product processing technology, and in particular to a negative pressure adsorption type fish skin separator and its automatic film removal method. Background Technology

[0002] Fish skin separation is a crucial step in fish processing. The separated skin can be used for further processing, while the fish meat can be sliced, marinated, and otherwise processed. Currently, there are various fish skin separation devices on the market, most of which use mechanical pressing or cutting to separate the skin from the meat. These devices are widely used in aquatic product processing workshops, food processing plants, and other locations to meet the needs of large-scale fish processing.

[0003] Existing fish skin separation equipment often suffers from the problem of difficulty in removing the black film on the surface of the fish meat. At the same time, the separated fish skin is not easy to collect, and the rinsing water cannot be reused, resulting in water waste. During the operation of the equipment, the surfaces of the feeding conveyor and the discharging conveyor are prone to leaving broken fish skin and impurities, which not only affects the cleanliness of the equipment but also produces odors. In order to address the above problems, this invention proposes a negative pressure adsorption type fish skin separator and its automatic film removal method. Summary of the Invention

[0004] This invention provides a negative pressure adsorption type fish skin separator and its automatic film removal method, which solves the problem that the black film on the surface of fish meat is often difficult to remove when the separation equipment is in use.

[0005] This invention provides the following technical solution: A negative pressure adsorption type fish skin separator includes a frame, with a feeding conveyor and a discharging conveyor fixedly installed on the top of the frame, and a separation mechanism is provided between the feeding conveyor and the discharging conveyor for separating fish skin; A through-shaft is rotatably connected between the two sides of the frame. Two rotating frames are rotatably connected around the circumference of the shaft. A pressure roller and a brush roller are rotatably connected between the rotating frames. The pressure roller is used to press the fish meat, and the brush roller is used to brush off the black film. The pressure roller and the brush roller are driven by gears, and the pressure roller and the shaft are driven by a belt and pulley. The separation mechanism is located below the pressure roller and the brush roller; A rinsing mechanism, located at the top of the frame, is used to rinse the fish.

[0006] Furthermore, the separation mechanism includes a guide plate, a feeding roller, and a mounting plate. The guide plate and the mounting plate are both fixed between the inner walls of the two sides of the frame. The feeding roller rotates through the two sides of the frame. The feeding roller is located between the guide plate and the mounting plate. A gap is provided between the feeding roller and the mounting plate for the fish skin to pass through. The guide plate is located on one side of the feeding conveyor to guide the fish meat into the area above the feeding roller. The mounting plate is located on one side of the discharging conveyor to guide the fish meat to the area above the discharging conveyor. A cutter is placed on the surface of the mounting plate. A pressure plate is fixed to the surface of the mounting plate by bolts to press and fix the cutter.

[0007] Furthermore, the flushing mechanism includes a flushing pipe and a water tank. The flushing pipe is fixed between the two sides of the frame, the water tank is located at the bottom of the frame, a water pump is installed on one side of the water tank, a water pump is fixedly installed on the pump's pumping end, the water pump is fixedly connected to the water tank, the water pump's outlet end is connected to the flushing pipe through a pipe, and the flushing pipe is located above the feeding conveyor.

[0008] Furthermore, two suction pipes are fixedly installed between the two sides of the frame. The suction pipes are located below the feed conveyor and the discharge conveyor, respectively, and both suction pipes are connected to an external negative pressure filter.

[0009] Furthermore, a first motor and a second motor are fixedly connected to one side of the frame. One end of the output shaft of the first motor is fixed to the rotating shaft, and one end of the output shaft of the second motor is fixed to the feeding roller.

[0010] Furthermore, a guide hopper is fixedly connected between the inner walls of both sides of the frame to guide the fish skin, and the bottom of the guide hopper is inclined.

[0011] Furthermore, two fixed seats are fixedly connected to the bottom inner wall of the water tank, and a filter cylinder is rotatably connected between the two fixed seats. The filter cylinder is inclined, and one end of the guide hopper is located inside the filter cylinder. A through discharge hopper is fixedly connected to one side of the water tank. The discharge hopper is inclined and located below the lower end of the filter cylinder to guide the discharge of fish skin.

[0012] Furthermore, a fixing rod is fixedly connected to the lower end of the filter cylinder, the fixing rod rotatably passes through the water tank, and a driving ball is fixedly connected to one end of the fixing rod. The driving ball has multiple protruding retaining strips integrally formed around its circumference. A fixing frame is fixedly connected to one side of the outer wall of the water tank, and a through mounting shaft is rotatably connected to one side of the fixing frame. A driving sleeve is fixedly connected to one end of the mounting shaft, and the driving ball is embedded in the driving sleeve. A crossbar is fixedly connected to one side of the mounting shaft, and a driving disc is fixedly connected to one end of the feeding roller. An eccentrically set driving shaft is fixedly connected to one side of the driving disc, and a connecting rod is rotatably connected between the driving shaft and the crossbar.

[0013] Furthermore, a fixed cylinder is fixedly connected to one side of the inner wall of the water tank, a filter screen is fixedly connected to one end of the fixed cylinder, a brush plate is fixedly connected to the outer wall of the filter cylinder, the brush plate is in contact with the filter screen, and the connection between the water pump pipe and the water tank is located inside the fixed cylinder.

[0014] This invention also proposes an automatic film removal method for a negative pressure adsorption type fish skin separator, comprising the following steps: S1: Start the feeding conveyor, discharging conveyor, water pump, first motor and second motor. Place the fish that needs to be skinned and demembraned after being cut into pieces on the feeding conveyor. The feeding conveyor will send the fish to the top of the feeding roller. The fish meat is pressed by the pressure roller. At the same time, the feeding roller and the pressure roller rotate synchronously to transport the fish meat. The fish skin is cut by the cutter. After the fish skin enters the gap, the fish skin is separated by the rotation of the feeding roller, the pressing of the pressure roller and the cooperation of the cutter. Then the fish meat enters the discharging conveyor and is sent out. S2: When the rotating shaft rotates, it drives the pressure roller to rotate through the belt pulley. The pressure roller drives the brush roller to rotate through the gear. The brush roller brushes off the black membrane on the fish meat. S3: After the water pump starts, it draws water from the water tank and then flushes it through the flushing pipe to the fish meat and the feeding conveyor, making the feeding smoother. The flushing water, fish skin and black film enter the guide hopper through the gaps, and then enter the filter cylinder along the guide hopper, and finally enter the water tank for reuse. S4: When the feeding roller rotates, it also drives the drive disc and drive shaft to rotate. The drive shaft pulls the mounting shaft to rotate back and forth through the connecting rod and crossbar. The mounting shaft drives the fixed rod to rotate back and forth through the drive sleeve and drive ball. The fixed rod drives the filter cylinder to rotate back and forth, filtering out the water. Meanwhile, fish skin and other objects enter the discharge hopper along the filter cylinder and are discharged for easy collection. S5: Water in the tank is filtered through a filter screen before use. When the filter cylinder rotates, it drives the brush plate to rotate, thereby scraping off impurities on the filter screen and maintaining the filtering effect of the filter screen.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0016] In this invention, the pressure roller, brush roller, first motor, gears, belts and pulleys are used in combination. The first motor drives the rotating shaft to rotate, which drives the pressure roller through the belt and pulley. Then, the gear drives the brush roller to rotate in the opposite direction synchronously. The pressure roller presses the fish meat to avoid damage, and the brush roller efficiently brushes away the black film on the surface of the fish meat. This achieves simultaneous separation of fish skin and removal of black film, improving the cleanliness of fish meat processing.

[0017] In this invention, the fish skin and rinsing water are guided into the filter cylinder by the combined use of the filter cylinder, brush plate, filter screen and guide hopper and discharge hopper. The guide hopper guides the fish skin and rinsing water into the filter cylinder, the filter cylinder rotates back and forth to filter out water, the brush plate scrapes off impurities from the filter screen to maintain the filtration effect, and the filtered fish skin is discharged through the discharge hopper, realizing the collection of fish skin and the reuse of water resources, and reducing processing costs. In this invention, by setting up a guide hopper, a filter cylinder, and a discharge hopper, the separated fish skin enters the filter cylinder through the guide hopper and automatically slides down its inclined inner wall to the discharge hopper for discharge, thus realizing the rapid separation of fish skin from rinsing water and the centralized collection of fish skin, which is convenient to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a negative pressure adsorption type fish skin separator provided in an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of a negative pressure adsorption type fish skin separator provided in an embodiment of the present invention; Figure 3 A negative pressure adsorption type fish skin separator provided in this embodiment of the invention. Figure 2 Enlarged structural diagram of section A; Figure 4 This is a partial bottom view of a negative pressure adsorption type fish skin separator provided in an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the water tank structure of a negative pressure adsorption type fish skin separator provided in an embodiment of the present invention; Figure 6 A negative pressure adsorption type fish skin separator provided in this embodiment of the invention. Figure 5 A magnified schematic diagram of point B.

[0019] Figure label: 1. Frame; 2. Feed conveyor; 3. Discharge conveyor; 4. Water tank; 5. Water pump; 6. Pumping pipe; 7. Flushing pipe; 8. Guide plate; 9. Feeding roller; 10. Mounting plate; 11. Gap; 12. Cutter; 13. Pressure plate; 14. Rotating shaft; 15. Rotating frame; 16. Pressure roller; 17. Brush roller; 18. First motor; 19. Second motor; 20. Guide hopper; 21. Fixed seat; 22. Filter cylinder; 23. Drive disc; 24. Drive shaft; 25. Connecting rod; 26. Discharge hopper; 27. Fixed cylinder; 28. Filter screen; 29. ​​Brush plate; 30. Fixed rod; 31. Drive ball; 32. Clamping strip; 33. Fixed frame; 34. Mounting shaft; 35. Drive sleeve; 36. Crossbar; 37. Air extraction pipe. Detailed Implementation

[0020] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0022] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized. Example 1:

[0023] Reference Figures 1-6 A negative pressure adsorption type fish skin separator includes a frame 1. A feeding conveyor 2 and a discharging conveyor 3 are fixedly installed on the top of the frame 1. The conveying directions of the two are consistent. The feeding conveyor 2 is used to transport the fish to be processed to the separation mechanism, and the discharging conveyor 3 is used to transport the fish meat after the fish skin is separated to the next collection process. A separation mechanism is set between the feeding conveyor 2 and the discharging conveyor 3. This separation mechanism is the core component for realizing the separation of fish skin and fish meat.

[0024] A through-shaft 14 is rotatably connected between the two sides of the frame 1. Two rotating frames 15 are rotatably connected to the circumference of the shaft 14. The two rotating frames 15 are symmetrically arranged on both sides of the shaft 14 and do not rotate with the shaft 14. A through-shaft pressure roller 16 and a brush roller 17 are rotatably connected between the rotating frames 15. Both the pressure roller 16 and the brush roller 17 are parallel to the shaft 14. The surface of the pressure roller 16 is covered with rubber material to press the fish meat and prevent damage during the pressing process. The surface of the brush roller 17 is fixed with fine brushes to remove the black film on the surface of the fish meat. The pressure roller 16 and the brush roller 17 are driven by gears. When the pressure roller 16 rotates, it drives the brush roller 17 to rotate synchronously through the gears, and the two rotate in opposite directions to brush the black film to one side. The pressure roller 16 and the shaft 14 are driven by a belt pulley. When the shaft 14 rotates, it drives the pressure roller 16 to rotate through the belt pulley. The separation mechanism is located below the pressure roller 16 and the brush roller 17, so that the fish meat pressed by the pressure roller 16 can enter the separation mechanism for fish skin separation.

[0025] The separation mechanism includes a guide plate 8, a feeding roller 9, and a mounting plate 10. Both the guide plate 8 and the mounting plate 10 are bolted between the inner walls of both sides of the frame 1. The guide plate 8 guides the fish meat conveyed by the feeding conveyor 2 to accurately enter above the feeding roller 9. The feeding roller 9 rotates through both sides of the frame 1, and its surface is provided with anti-slip texture to enhance friction with the fish meat, facilitating its movement. The feeding roller 9 is located between the guide plate 8 and the mounting plate 10, with a gap 11 between them for the fish skin to pass through, achieving separation of the fish skin and fish meat. The mounting plate 10 guides the separated fish meat above the discharge conveyor 3, facilitating its transport. A cutter 12 is placed on the surface of the mounting plate 10, with the blade of the cutter 12 facing the feeding roller 9. It is used to cut the fish meat and fish skin. A pressure plate 13 is fixed to the surface of the mounting plate 10 by bolts. The pressure plate 13 presses on the surface of the cutter 12 to press and fix the cutter 12, prevent the cutter 12 from shifting during operation, and ensure the cutting effect of the cutter 12.

[0026] The equipment also includes a rinsing mechanism, which is located at the top of the frame 1 and is used to rinse the fish meat to make the feeding process smoother. The rinsing mechanism includes a rinsing pipe 7 and a water tank 4. The rinsing pipe 7 is fixed between the two sides of the frame 1 by a bracket and is located above the feeding conveyor 2. The bottom of the rinsing pipe 7 has multiple evenly spaced spray holes to facilitate the even spraying of water onto the surface of the fish meat on the feeding conveyor 2. The water tank 4 is located at the bottom of the frame 1 to achieve water reuse. A water pump 5 is installed on one side of the water tank 4, and a water suction pipe 6 is fixedly installed at the water suction end of the water pump 5. One end of the water suction pipe 6 is fixedly connected to the water tank 4, and the inlet of the water suction pipe 6 extends into the interior of the water tank 4 to facilitate the extraction of water from the bottom of the water tank 4. The outlet of the water pump 5 is connected to the flushing pipe 7 through a pipeline. After the water pump 5 is started, the water in the water tank 4 can be drawn out and transported to the flushing pipe 7 through the pipeline. Then, the water is sprayed onto the fish meat and the feeding conveyor 2 through the spray hole of the flushing pipe 7. Example 2:

[0027] Reference Figures 1-6 Based on Example 1, an improved negative pressure adsorption type fish skin separator is proposed: Two suction pipes 37 are fixedly installed between the two sides of the frame 1. The two suction pipes 37 are located below the feeding conveyor 2 and the discharging conveyor 3, respectively. Suction holes are evenly distributed on the surface of the suction pipes 37, and both suction pipes 37 are connected to an external negative pressure filter. After the external negative pressure filter is activated, the suction pipes 37 will generate negative pressure, which can suck away the fish skin scraps and impurities on the surface of the feeding conveyor 2 and the discharging conveyor 3, keeping the surface of the feeding conveyor 2 and the discharging conveyor 3 clean.

[0028] A first motor 18 and a second motor 19 are fixedly connected to one side of the frame 1. Both the first motor 18 and the second motor 19 are fixed to the side wall of the frame 1 by bolts. One end of the output shaft of the first motor 18 is fixedly connected to the rotating shaft 14. After the first motor 18 is started, it can drive the rotating shaft 14 to rotate, and then drive the pressure roller 16 to rotate through the belt pulley. The pressure roller 16 then drives the brush roller 17 to rotate through the gear. One end of the output shaft of the second motor 19 is fixedly connected to the feeding roller 9. After starting the second motor 19, it can directly drive the feeding roller 9 to rotate. After starting the feeding conveyor 2, the discharging conveyor 3, the water pump 5, the first motor 18 and the second motor 19, the fish that needs to be skinned and demembraned after being cut is placed on the feeding conveyor 2 and sent to the top of the feeding roller 9. At this time, the pressure roller 16 presses the fish meat tightly on the feeding roller 9. The feeding roller 9 and the pressure roller 16 rotate synchronously to transport the fish meat smoothly. The cutter 12 on the mounting plate 10 cuts the fish meat and fish skin at the same time. Under the action of the rotation of the feeding roller 9, the pressing of the pressure roller 16 and the cooperation of the cutter 12, the fish skin passes through the gap 11 between the feeding roller 9 and the mounting plate 10, completing the separation of the fish skin and fish meat. The separated fish meat continues to move to the mounting plate 10 under the drive of the feeding roller 9, and then is guided to the discharging conveyor 3 by the mounting plate 10, and is transported to the next processing step by the discharging conveyor 3.

[0029] A guide hopper 20 is fixedly connected between the inner walls of both sides of the frame 1. The guide hopper 20 is located below the separation mechanism and is used to guide the separated fish skin into the subsequent collection mechanism. The bottom of the guide hopper 20 is inclined to facilitate the smooth sliding of the fish skin under the action of gravity and water flow. The bottom of the guide hopper 20 extends to the top of the water tank 4, and one end is located above the filter cylinder 22 inside the water tank 4 to ensure that the fish skin can accurately enter the filter cylinder 22.

[0030] Two fixed seats 21 are fixedly connected to the bottom inner wall of the water tank 4. The two fixed seats 21 are symmetrically arranged at the bottom of the water tank 4, and a filter cylinder 22 is rotatably connected between the two fixed seats 21. The filter cylinder 22 has multiple filter holes evenly opened on its surface to filter water from the fish skin. The filter cylinder 22 is inclined, with its higher end located below the feed hopper 20 and its lower end facing one side of the water tank 4, which facilitates the movement of the filtered fish skin to the lower end. One end of the feed hopper 20 is located inside the filter cylinder 22, ensuring that all the fish skin, rinsing water, and black film falling from the feed hopper 20 can enter the filter cylinder 22. A through discharge hopper 26 is fixedly connected to one side of the water tank 4. The discharge hopper 26 is inclined and located below the lower end of the filter cylinder 22, which guides the discharged fish skin to facilitate collection by the staff.

[0031] A fixing rod 30 is fixedly connected to the lower end of the water filter cylinder 22. The fixing rod 30 is coaxially arranged with the water filter cylinder 22 and rotatably passes through the side wall of the water tank 4. A drive ball 31 is fixedly connected to one end of the fixing rod 30. The drive ball 31 has multiple protruding retaining strips 32 integrally formed around its circumference, and the retaining strips 32 are evenly distributed on the circumference of the drive ball 31. A fixing frame 33 is fixedly connected to one side of the outer wall of the water tank 4. The fixing frame 33 is U-shaped and fixed to the side wall of the water tank 4 by bolts. A through mounting shaft 34 is rotatably connected to one side of the fixing frame 33. A drive sleeve 35 is fixedly connected to one end of the mounting shaft 34. The drive sleeve 35 has a groove inside that matches the drive ball 31, and the inner wall of the groove has a slot that matches the retaining strips 32. The drive ball 31 is embedded in the drive sleeve 35, and the retaining strips 32 are engaged in the slots to ensure that the drive ball 31 can rotate synchronously when the drive sleeve 35 rotates. A crossbar 36 is fixedly connected to one side of the mounting shaft 34, and a drive disc 23 is fixedly connected to one end of the feeding roller 9. The drive disc 23 is coaxial with the feeding roller 9. An eccentrically positioned drive shaft 24 is fixedly connected to one side of the drive disc 23. A connecting rod 25 is rotatably connected between the drive shaft 24 and the crossbar 36. When the feeding roller 9 rotates, it drives the drive disc 23 and the drive shaft 24 to rotate. The drive shaft 24 performs eccentric circular motion, which in turn pulls the crossbar 36 to swing back and forth through the connecting rod 25. The crossbar 36 drives the mounting shaft 34 to rotate. The mounting shaft 34 reciprocates, and the mounting shaft 34 drives the fixed rod 30 to reciprocate through the drive sleeve 35 and the drive ball 31. The fixed rod 30 drives the filter cylinder 22 to reciprocate. During the reciprocating rotation, the filter holes on the surface of the filter cylinder 22 can filter out the water from the fish skin, preventing foreign objects from adhering to the filter cylinder 22. At the same time, the filtered water falls into the water tank 4 for reuse, while fish skin and other objects slide along the inclined filter cylinder 22 to the lower end and finally fall into the discharge hopper 26 and are discharged.

[0032] A fixed cylinder 27 is fixedly connected to the inner wall of one side of the water tank 4. The fixed cylinder 27 is cylindrical, with one end fixedly connected to the inner wall of the water tank 4 and the other end fixedly connected to a filter screen 28. The filter screen 28 is used to filter the water in the water tank 4, removing impurities and small fish skin debris to ensure the cleanliness of the rinsing water. A brush plate 29 is fixedly connected to the outer wall of the filter cylinder 22. The brush plate 29 contacts the filter screen 28. When the filter cylinder 22 rotates back and forth, it will drive the brush plate 29 to rotate synchronously. The brush on the brush plate 29 will scrape off the impurities on the surface of the filter screen 28, preventing impurities from clogging the filter screen 28 and maintaining the filtration effect of the filter screen 28. The connection between the water pump 6 and the water tank 4 is located inside the fixed cylinder 27, ensuring that the water pumped by the water pump 5 is clean water filtered by the filter screen 28, preventing impurities from entering the water pump 5 and the rinsing pipe 7, and extending the service life of the equipment.

[0033] It also includes a controller (not shown in the attached diagram), which is electrically connected to the feed conveyor 2, the discharge conveyor 3, the first motor 18, the second motor 19 and the water pump 5 respectively.

[0034] This invention also proposes an automatic film removal method for a negative pressure adsorption type fish skin separator, comprising the following steps: S1: Start the feeding conveyor 2, the discharging conveyor 3, the water pump 5, the first motor 18 and the second motor 19. Place the fish that needs to be skinned and demembraned after being cut on the feeding conveyor 2. The feeding conveyor 2 will send the fish to the top of the feeding roller 9. The fish meat will be pressed by the pressure roller 16. At the same time, the feeding roller 9 and the pressure roller 16 will rotate synchronously to transport the fish meat. The fish skin will be cut by the cutter 12. After the fish skin enters the gap 11, the fish skin will be separated by the rotation of the feeding roller 9, the pressing of the pressure roller 16 and the cooperation of the cutter 12. Then the fish meat will enter the discharging conveyor 3 and be sent out. S2: When the rotating shaft 14 rotates, it drives the pressure roller 16 to rotate through the belt pulley. The pressure roller 16 drives the brush roller 17 to rotate through the gear. The brush roller 17 brushes away the black membrane on the fish meat. S3: After the water pump 5 starts, it draws water from the water tank 4 and then flushes it through the flushing pipe 7 to the fish meat and the feeding conveyor 2, making the feeding smoother. The rinsing water, fish skin and black film enter the guide hopper 20 through the gap 11, and then enter the filter cylinder 22 along the guide hopper 20, and finally enter the water tank 4 for reuse. S4: When the feeding roller 9 rotates, it also drives the drive disc 23 and drive shaft 24 to rotate. The drive shaft 24 pulls the mounting shaft 34 to rotate back and forth through the connecting rod 25 and the crossbar 36. The mounting shaft 34 drives the fixed rod 30 to rotate back and forth through the drive sleeve 35 and the drive ball 31. The fixed rod 30 drives the filter cylinder 22 to rotate back and forth, filtering out water. Meanwhile, fish skin and other objects enter the discharge hopper 26 along the filter cylinder 22 and are discharged for easy collection. S5: The water in the water tank 4 is used after being filtered through the filter screen 28. When the water filter cylinder 22 rotates, it drives the brush plate 29 to rotate, thereby scraping off the impurities on the filter screen 28 and maintaining the filtration effect of the filter screen 28.

[0035] However, as is well known to those skilled in the art, the working principles and wiring methods of the feed conveyor 2, discharge conveyor 3, water pump 5, first motor 18 and second motor 19 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A negative pressure adsorption type fish skin separator, characterized in that, include: A frame (1) is fixedly installed on the top of the frame (1) with a feeding conveyor (2) and a discharging conveyor (3). A separation mechanism is provided between the feeding conveyor (2) and the discharging conveyor (3) for separating fish skin. A through-shaft (14) is rotatably connected between the two sides of the frame (1). Two rotating frames (15) are rotatably connected around the circumference of the rotating shaft (14). A through-shaft pressure roller (16) and a brush roller (17) are rotatably connected between the rotating frames (15). The pressure roller (16) is used to press the fish meat, and the brush roller (17) is used to brush off the black film. The pressure roller (16) and the brush roller (17) are driven by gears, and the pressure roller (16) and the rotating shaft (14) are driven by belt pulleys. The separation mechanism is located below the pressure roller (16) and the brush roller (17); A flushing mechanism is installed on top of the frame (1) for rinsing the fish meat.

2. The negative pressure adsorption type fish skin separator according to claim 1, characterized in that, The separation mechanism includes a guide plate (8), a feeding roller (9), and a mounting plate (10). The guide plate (8) and the mounting plate (10) are fixed between the inner walls of both sides of the frame (1). The feeding roller (9) rotates through the two sides of the frame (1). The feeding roller (9) is located between the guide plate (8) and the mounting plate (10). A gap (11) is provided between the feeding roller (9) and the mounting plate (10) for the fish skin to pass through. The guide plate (8) is located on one side of the feeding conveyor (2) to guide the fish meat into the area above the feeding roller (9). The mounting plate (10) is located on one side of the discharging conveyor (3) to guide the fish meat to the area above the discharging conveyor (3). A cutter (12) is placed on the surface of the mounting plate (10). A pressure plate (13) is fixed to the surface of the mounting plate (10) by bolts to press and fix the cutter (12).

3. The negative pressure adsorption type fish skin separator according to claim 1, characterized in that, The flushing mechanism includes a flushing pipe (7) and a water tank (4). The flushing pipe (7) is fixed between the two sides of the frame (1). The water tank (4) is located at the bottom of the frame (1). A water pump (5) is provided on one side of the water tank (4). A water pump (6) is fixedly installed at the water pump (5). The water pump (6) is fixedly connected to the water tank (4). The water pump (5) is connected to the flushing pipe (7) through a pipe. The flushing pipe (7) is located above the feed conveyor (2).

4. The negative pressure adsorption type fish skin separator according to claim 1, characterized in that, Two suction pipes (37) are fixedly installed between the two sides of the frame (1). The suction pipes (37) are located below the feed conveyor (2) and the discharge conveyor (3), respectively. The suction pipes (37) are connected to the external negative pressure filter.

5. The negative pressure adsorption type fish skin separator according to claim 3, characterized in that, A first motor (18) and a second motor (19) are fixedly connected to one side of the frame (1). One end of the output shaft of the first motor (18) is fixed to the rotating shaft (14), and one end of the output shaft of the second motor (19) is fixed to the feeding roller (9).

6. The negative pressure adsorption type fish skin separator according to claim 5, characterized in that, A guide hopper (20) is fixedly connected between the inner walls of both sides of the frame (1) to guide the fish skin. The bottom of the guide hopper (20) is inclined.

7. A negative pressure adsorption type fish skin separator according to claim 6, characterized in that, The bottom inner wall of the water tank (4) is fixedly connected to two fixed seats (21), and a filter cylinder (22) is rotatably connected between the two fixed seats (21). The filter cylinder (22) is inclined. One end of the guide hopper (20) is located inside the filter cylinder (22). A through discharge hopper (26) is fixedly connected to one side of the water tank (4). The discharge hopper (26) is inclined and located below the lower end of the filter cylinder (22) to guide the discharge of fish skin.

8. The negative pressure adsorption type fish skin separator according to claim 7, characterized in that, The lower end of the filter cylinder (22) is fixedly connected to a fixing rod (30), which rotates through the water tank (4). One end of the fixing rod (30) is fixedly connected to a drive ball (31), which has multiple protruding clips (32) integrally formed around its circumference. One side of the outer wall of the water tank (4) is fixedly connected to a fixing frame (33), which is rotatably connected to a through mounting shaft (34). One end of the mounting shaft (34) is fixedly connected to a drive sleeve (35), which is embedded in the drive sleeve (35). One side of the mounting shaft (34) is fixedly connected to a crossbar (36), which is fixedly connected to one end of the feeding roller (9). One side of the drive disk (23) is fixedly connected to an eccentrically set drive shaft (24), which is rotatably connected to the drive shaft (24) and the crossbar (36). A connecting rod (25) is rotatably connected between the drive shaft (24) and the crossbar (36).

9. A negative pressure adsorption type fish skin separator according to claim 8, characterized in that, A fixed cylinder (27) is fixedly connected to one side of the inner wall of the water tank (4), and a filter screen (28) is fixedly connected to one end of the fixed cylinder (27). A brush plate (29) is fixedly connected to the outer wall of the filter cylinder (22), and the brush plate (29) contacts the filter screen (28). The connection between the water pumping pipe (6) and the water tank (4) is located inside the fixed cylinder (27).

10. An automatic film removal method for a negative pressure adsorption type fish skin separator according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Start the feeding conveyor (2), the discharging conveyor (3), the water pump (5), the first motor (18) and the second motor (19). Place the fish that needs to be skinned and demembraned after being cut on the feeding conveyor (2). The feeding conveyor (2) sends the fish to the top of the feeding roller (9). The fish meat is pressed by the pressure roller (16). At the same time, the feeding roller (9) and the pressure roller (16) rotate synchronously to transport the fish meat. The fish skin is cut by the cutter (12). After the fish skin enters the gap (11), the fish skin is separated by the rotation of the feeding roller (9), the pressing of the pressure roller (16) and the cooperation of the cutter (12). Then the fish meat enters the discharging conveyor (3) and is sent out. S2: When the rotating shaft (14) rotates, it drives the pressure roller (16) to rotate through the belt pulley. The pressure roller (16) drives the brush roller (17) to rotate through the gear. The brush roller (17) brushes away the black film on the fish meat. S3: After the water pump (5) starts, it draws water from the water tank (4) and then flushes it through the flushing pipe (7) to the fish meat and the feeding conveyor (2) to make the feeding smoother. The flushing water, fish skin and black film enter the guide hopper (20) through the gap (11), and then enter the filter cylinder (22) along the guide hopper (20), and finally enter the water tank (4) for reuse. S4: When the feeding roller (9) rotates, it also drives the drive disc (23) and drive shaft (24) to rotate. The drive shaft (24) pulls the mounting shaft (34) to rotate back and forth through the connecting rod (25) and cross bar (36). The mounting shaft (34) drives the fixed rod (30) to rotate back and forth through the drive sleeve (35) and drive ball (31). The fixed rod (30) drives the filter cylinder (22) to rotate back and forth, filtering out water. Meanwhile, fish skin and other objects enter the discharge hopper (26) along the filter cylinder (22) and are discharged, making it easy to collect. S5: Water in the water tank (4) is used after being filtered through the filter screen (28). When the filter cylinder (22) rotates, it drives the brush plate (29) to rotate, thereby scraping off the impurities on the filter screen (28) and maintaining the filtration effect of the filter screen (28).

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