Fresh laver floating cutting device

Abstract

The invention provides a fresh laver floating cutting device, and relates to the technical field of laver processing, the fresh laver floating cutting device comprises a machine body, a hole disc and a floating cutter, the machine body is provided with a first accommodating cavity and is provided with a feed port and a discharge port; the hole disc is arranged in the first containing cavity and divides the first containing cavity into a feeding area and a discharging area in the first direction, the feeding area communicates with the feeding port, the discharging area communicates with the discharging port, and the hole disc is provided with a material passing hole penetrating through the hole disc in the thickness direction of the hole disc; the floating cutter is arranged in the discharging area and can rotate relative to the discharging area, the pivoting direction of the floating cutter and the thickness direction of the hole disc are consistent with the first direction, and the floating cutter and the hole disc are arranged at intervals in the first direction. According to the invention, the integrity of high-toughness foreign matters such as nylon ropes can be maintained while original laver is cut, so that the physical size difference between small broken laver and large foreign matters is obvious, and the sorting rate of the foreign matters of the laver is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of laver processing technology, and in particular to a floating cutting device for fresh laver. Background Technology

[0002] There are two methods for sorting foreign objects in laver: manual and mechanical. Manual sorting can only pick out larger foreign objects, while smaller foreign objects need to be sorted mechanically. The principle is to take advantage of the difference in physical characteristics between the fine, smooth, and thin laver algae and the relatively large laver foreign objects, and to separate the foreign objects by using a "grind + cleaning knife + negative pressure" filtration method. In the laver processing production process, fresh laver algae need to be chopped into strips or blocks of about 5-8mm to meet the needs of subsequent cake making and obtaining flat and smooth laver sheets.

[0003] In related technologies, a cutting device with a "perforated disc + fitting blade" similar to a meat grinder is usually used to chop seaweed. This cutting device will chop the nylon rope and other thread-like objects in the seaweed material into materials with a length of about 3-10mm. As a result, when the seaweed is sorted by mechanical means of "groove + cleaning blade + negative pressure", the chopped fine nylon filaments and other foreign objects are easily sucked away with the chopped seaweed, resulting in a very low detection rate of such foreign objects, which seriously affects the quality of the finished seaweed sheets. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a fresh laver floating cutting device, which can cut the laver raw algae while maintaining the integrity of highly tough foreign objects such as nylon ropes, so that the physical size difference between smaller pieces of laver and larger foreign objects is obvious, thereby greatly improving the sorting rate of laver foreign objects.

[0006] According to an embodiment of the present invention, a floating cutting device for fresh laver includes a body, a perforated plate, and a floating cutting blade. The body has a first receiving cavity and is provided with an inlet and an outlet. The perforated plate is disposed in the first receiving cavity and divides the first receiving cavity into an inlet area and an outlet area along a first direction. The inlet area is connected to the inlet, and the outlet area is connected to the outlet. The perforated plate is provided with a material passage hole that penetrates the perforated plate along its thickness direction. The floating cutting blade is disposed in the outlet area and is rotatable relative to the outlet area. The pivot direction of the floating cutting blade and the thickness direction of the perforated plate are both consistent with the first direction. The floating cutting blade and the perforated plate are arranged at intervals along the first direction.

[0007] According to the fresh laver floating cutting device of the present invention, laver material can enter the feeding area through the inlet, and then flow through the material passage holes on the perforated plate and into the discharge area. When at least part of the laver material passes through the material passage holes into the discharge area, because there is a gap between the floating cutter and the perforated plate, that is, the two do not contact each other and are arranged at a set distance, the rotating floating cutter cuts the laver material by floating cutting rather than hard contact forced cutting. During the floating cutting process, the fresh and tender laver algae are easily cut by the sharp floating cutter. Meanwhile, foreign objects with good toughness, such as nylon ropes and nylon filaments, will not be cut or will be cut very little. Therefore, the floating cutting device can obtain chopped seaweed particles as well as uncut, tough impurities, creating conditions for high detection and sorting of foreign objects in seaweed using a grate-type process. Thus, compared with related technologies, this invention can chop the original seaweed algae while maintaining the integrity of high-toughness foreign objects such as nylon ropes, so that the physical size difference between smaller pieces of seaweed and larger foreign objects is obvious, thereby greatly improving the sorting rate of seaweed foreign objects.

[0008] Furthermore, the feed inlet is adapted to be connected to an external feeding device to press the seaweed material into the first receiving cavity;

[0009] The discharge port is adapted to be connected to an external suction device to create a negative pressure in the first receiving cavity so that the seaweed material can be sucked into the first receiving cavity.

[0010] In some embodiments, the floating cutting device further includes a first rotating shaft and a first power input component. The first rotating shaft is rotatably connected to the machine body. At least a portion of the first rotating shaft is located in the discharge area and connected to the floating cutting blade. The first power input component is drively connected to the end of the first rotating shaft opposite to the floating cutting blade to drive the floating cutting blade to rotate relative to the perforated plate.

[0011] In some embodiments, the floating cutting device further includes a first seal, which is sleeved on the first rotating shaft to seal the connection between the first rotating shaft and the machine body.

[0012] In some embodiments, the rotational speed of the floating cutter is n1, and n1 ≥ 2000 r / min.

[0013] In some embodiments, the floating cutting device further includes a cleaning component disposed in the feeding area and used to clean the side of the perforated plate facing the feeding area, so as to prevent the seaweed material from clogging the feeding hole.

[0014] In some embodiments, the cleaning component is rotatably connected to the feed area, and the pivoting direction of the cleaning component is consistent with the first direction.

[0015] In some embodiments, the floating cutting device further includes a second rotating shaft and a second power input component. The second rotating shaft is rotatably connected to the machine body. At least a portion of the second rotating shaft is located in the feeding area and connected to the cleaning assembly. The second power input component is drively connected to the end of the second rotating shaft opposite to the cleaning assembly to drive the cleaning assembly to rotate relative to the orifice plate.

[0016] In some embodiments, the floating cutting device further includes a second seal, which is sleeved on the second rotating shaft to seal the connection between the second rotating shaft and the machine body.

[0017] In some embodiments, the cleaning assembly includes a radiant tube and a nozzle, the radiant tube being pivotally mounted in the feed area, the radiant tube being spaced apart from the orifice plate along the first direction and adapted to communicate with an external high-pressure water source; the nozzle being disposed on the radiant tube and communicating with the radiant tube, the nozzle being used to spray high-pressure water onto the side of the orifice plate facing the feed area.

[0018] In some embodiments, the spray direction of the nozzle forms an angle α with the side of the orifice plate facing the feed area, and α is 20°-80°.

[0019] In some embodiments, the radiant tube is connected to the portion of the second rotating shaft located in the feed area and extends radially along the second rotating shaft;

[0020] The radiation tube is at least one and arranged circumferentially along the second axis of rotation. The nozzle is a plurality of nozzles, including at least one row of nozzles arranged at intervals along the first direction. Each row of nozzles includes at least two nozzles arranged at intervals along the extension direction of the radiation tube. At least one row of nozzles corresponds to one radiation tube.

[0021] In some embodiments, the second rotating shaft has a water injection channel, a first end of which is adapted to communicate with the external high-pressure water source, and a second end of which is connected to the radiant tube.

[0022] In some embodiments, the cleaning assembly includes a cleaning blade and an elastic member, the cleaning blade being pivotally mounted in the feed area and abutting against the side of the orifice plate facing the feed area; the elastic member being disposed between the cleaning blade and the machine body and capable of pressing the cleaning blade toward the orifice plate.

[0023] In some embodiments, the cleaning assembly further includes an anti-tangling cover rotatably connected to the body, the anti-tangling cover having a second receiving cavity open toward the orifice plate, one end of the cleaning blade away from the orifice plate being slidably connected to the anti-tangling cover along the first direction and sealing the second receiving cavity, and an elastic member located in the second receiving cavity and sandwiched between the cleaning blade and the anti-tangling cover.

[0024] In some embodiments, the cleaning blade and the portion of the second rotating shaft located in the feeding area are slidably connected along the first direction, and the anti-tangling cover is sleeved on the second rotating shaft.

[0025] In some embodiments, the rotational speed of the cleaning blade is n2, and n2 ≤ 100 r / min.

[0026] In some embodiments, the cleaning blade is a toothed blade, the number of teeth of the toothed blade is N, and 2≤N≤12.

[0027] In some embodiments, the body includes a housing and a door, the housing having an open end in the first direction, and the door being connected to the housing to cover the open end of the housing and define the first receiving cavity therebetween.

[0028] The feeding area is closer to the machine door than the discharging area.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a fresh laver floating cutting device according to an embodiment of the present invention.

[0031] Figure 2 This is another structural schematic diagram of the fresh laver floating cutting device according to an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of a cleaning component in a fresh laver floating cutting device according to an embodiment of the present invention.

[0033] Figure 4 yes Figure 3 Side view.

[0034] Figure 5 This is a schematic diagram of another cleaning component in the fresh laver floating cutting device according to an embodiment of the present invention.

[0035] Figure 6 yes Figure 5 A schematic diagram of the cleaning blade.

[0036] Figure label:

[0037] 1. Machine body; 11. First receiving cavity; 111. Feeding area; 112. Discharge area; 12. Feed inlet; 13. Discharge outlet; 14. First bearing seat; 15. Second bearing seat; 16. Machine casing; 17. Machine door;

[0038] 2. Hole plate; 21. Material passage hole;

[0039] 3. Floating cutter;

[0040] 4. First rotating shaft; 41. First sealing element;

[0041] 5. First power input component;

[0042] 6. Cleaning assembly; 61. Radial tube; 611. Hollow tube body; 612. Sealing; 62. Nozzle; 63. Connecting pipe; 64. Cleaning blade; 65. Elastic element; 66. Anti-entanglement cover; 661. Second receiving cavity;

[0043] 7. Second rotating shaft; 71. Second sealing element; 72. Water injection channel;

[0044] 8. Second power input component. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a fresh seaweed floating cutting device, comprising a body 1, a perforated plate 2, and a floating cutting blade 3. The body 1 has a first receiving cavity 11 and is provided with an inlet 12 and an outlet 13. The perforated plate 2 is disposed in the first receiving cavity 11 and divides the first receiving cavity 11 into an inlet area 111 and an outlet area 112 along a first direction. The inlet area 111 is connected to the inlet 12, and the outlet area 112 is connected to the outlet 13. The perforated plate 2 is provided with a through-hole along its thickness direction. The material passage 21 is connected to both the feeding area 111 and the discharge area 112. Therefore, when the external suction device performs suction operation on the material in the discharge area 112 through the discharge port 13, the first receiving cavity 11 can form a negative pressure. The floating cutter 3 is located in the discharge area 112 and can rotate relative to the discharge area 112. The pivot direction of the floating cutter 3 and the thickness direction of the perforated plate 2 are both consistent with the first direction. The floating cutter 3 and the perforated plate 2 are arranged at intervals along the first direction.

[0047] According to the fresh laver floating cutting device of the present invention, laver material can enter the feeding area 111 through the feeding port 12, and then pass through the material passage hole 21 on the perforated plate 2 and flow into the discharge area 112. When at least part of the laver material passes through the material passage hole 21 into the discharge area 112, because there is a gap between the floating cutting blade 3 and the perforated plate 2, that is, the two do not contact each other and are arranged at a set distance, the rotating floating cutting blade 3 cuts the laver material by floating cutting rather than hard contact forced cutting. During the floating cutting process, the fresh and tender laver algae are easily cut. The sharp floating cutter 3 shreds the seaweed, while tougher foreign objects such as nylon ropes and nylon filaments are either not cut or are cut very little. Therefore, the floating cutter can obtain shredded seaweed particles and uncut, tough impurities, creating conditions for high detection and sorting of seaweed foreign objects in the subsequent grate-type process. Thus, compared with related technologies, this invention can shred the original seaweed while maintaining the integrity of tougher foreign objects such as nylon ropes, making the physical size difference between smaller pieces of seaweed and larger foreign objects obvious, thereby greatly improving the sorting rate of seaweed foreign objects.

[0048] Furthermore, the feed inlet is adapted to connect with an external feeding device to press the seaweed material into the first receiving cavity;

[0049] The discharge port is adapted to be connected to an external suction device to create a negative pressure in the first receiving cavity so that the seaweed material can be sucked into the first receiving cavity.

[0050] In other words, this invention can achieve the flow of seaweed material between the inlet, the inlet area, and the outlet by creating positive pressure within the first receiving cavity using an external feeding device; alternatively, it can use a negative pressure created within the first receiving cavity by an external suction device to draw the seaweed material into the first receiving cavity; or it can combine the two methods mentioned above. It should be noted that this invention does not specifically limit the specific flow method of the seaweed material between the inlet, the first receiving cavity, and the outlet, as long as the smooth flow of the seaweed material is achieved.

[0051] Specifically, the external feeding device is not limited to a feeding pump, and the external suction device is not limited to a suction pump. The perforated plate 2 can be fixed in the first receiving cavity 11. The size of the cut seaweed particles can be adjusted by changing the pressure of the external feeding device or the suction of the external suction device, the distance between the floating cutter 3 and the perforated plate 2, and by replacing the perforated plate 2 with a different size of the material passage hole 21.

[0052] It should be noted that laver grows in seawater. Laver seedlings are cultivated in nylon-based ropes and placed in the ocean for natural growth. Once the laver reaches a harvestable length (generally over 20cm), harvesting machinery is used to harvest the long strips of laver. Laver harvesting machines use rotating drum blades to knock the laver off the cultivation ropes and collect it. Therefore, the harvested laver raw material will contain foreign matter and impurities such as nylon ropes, seaweed, sand, shells, and floating debris that are knocked off along with the laver. These foreign objects need to be sorted and removed during laver processing.

[0053] The basic principle of the mechanical method for sorting foreign objects in seaweed is to use multiple sets of grates. The seaweed material to be sorted is placed on one side of the grate set, and the other side of the grate is a closed cavity with negative pressure suction. Under the action of suction force, the seaweed material along with the water liquid will pass through the gaps in the grate set and be continuously sucked away. Larger foreign objects and impurities cannot pass through the grates or have difficulty passing through the grates and remain in the raw material cavity, thus realizing the separation of seaweed material and impurities.

[0054] In related technologies, the moving blade of the cutting device contacts the perforated plate (similar to the principle of a meat grinder), which is a rigid cutting method. All materials passing through the perforated plate will be cut off. As a result, when sorting seaweed materials in the subsequent "grate + cleaning blade + negative pressure" method, the small nylon filaments and other foreign objects that were previously cut will be easily sucked away with the broken seaweed, resulting in an extremely low detection rate of such foreign objects, which seriously affects the quality of the finished seaweed sheets.

[0055] The purpose of the floating cutter 3 and the perforated plate 2 in this invention, which are arranged at a set distance, is to achieve flexible cutting of the seaweed material by the rigid cutter, also known as "floating cutting". "Floating cutting" means that the moving cutter does not contact the perforated plate 2. The rotating moving cutter cuts the seaweed material flowing out of the feed hole 21 of the perforated plate 2. In this way, by controlling the distance and cutting force (rotation speed), the more brittle and tender seaweed algae can be cut, while foreign objects such as tougher nylon fibers will not be cut. This not only fulfills the need to chop the seaweed, but also creates conditions for improving the seaweed foreign object sorting rate in the next step.

[0056] Therefore, the present invention can be arranged in the foreign matter sorting loop of the seaweed production line, so that the raw material supply from the previous production process can be received through the feed port 12 of the present invention. The raw material is a mixture of "seaweed material + water", thereby significantly improving the seaweed foreign matter sorting rate.

[0057] like Figure 1 and Figure 2As shown, in some embodiments, the floating cutting device further includes a first rotating shaft 4 and a first power input 5. The first rotating shaft 4 is rotatably connected to the machine body 1. At least a portion of the first rotating shaft 4 is located in the discharge zone 112 and connected to the floating cutter 3. The first power input 5 is drivenly connected to the end of the first rotating shaft 4 away from the floating cutter 3 to drive the floating cutter 3 to rotate relative to the orifice plate 2.

[0058] It is understandable that by adopting a structure in which the first power input component 5, the first rotating shaft 4, and the floating cutter 3 work together, the rotation speed of the floating cutter 3 can be automatically adjusted, thereby improving the automation level of the floating cutting device and thus increasing production efficiency.

[0059] Specifically, a first bearing housing 14 can be installed on the outside of the machine body 1. A first bearing is provided inside the first bearing housing 14. The first rotating shaft 4 passes through the first bearing housing 14 and is rotatably connected to the first bearing, so that the first rotating shaft 4 is reliably supported on the machine body 1 by the first bearing housing 14 and the first bearing, ensuring the rotation performance of the first rotating shaft 4. The first rotating shaft 4 has a first end and a second end arranged opposite to each other along its extension direction. The floating cutter 3 can be fixedly installed on the cutter holder, and the cutter holder is fixedly installed on the first end of the first rotating shaft 4 (that is, the first rotating shaft 4 is located at one end of the discharge zone 112). The second end of the first rotating shaft 4 passes through the first bearing housing 14 and is connected to the first power input component 5 for transmission, so that the floating cutter 3 is driven by the first power input component 5.

[0060] like Figure 1 and Figure 2 As shown, in some embodiments, the floating cutting device further includes a first sealing element 41, which is sleeved on the first rotating shaft 4 to seal the connection between the first rotating shaft 4 and the machine body 1. Specifically, the first sealing element 41 is provided between the inner cavity of the first bearing seat 14 and the outer peripheral surface of the first rotating shaft 4 to prevent the water in the discharge zone 112 from seeping into the interior of the first bearing seat 14.

[0061] The first sealing element 41 can be a mechanical sealing structure, such as a mechanical sealing structure widely used in high-speed mechanical structures for liquid media such as water pumps. It consists of two parts, and the end faces of the two parts are brought together by a compression spring to seal the seal. One of the parts has rubber in its inner hole that seals with the first rotating shaft 4, and the other part has rubber that seals with the inner cavity of the first bearing seat 14.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the floating cutter 3 has at least two teeth that are arranged at circumferential intervals along the first axis of rotation 4.

[0063] It should be noted that too few serrations will result in unevenly sized seaweed particles, while too many serrations will easily block the flow path of the seaweed, resulting in insufficient flow. Therefore, the specific number of serrations of the floating cutter 3 needs to be designed according to the actual situation, which will not be elaborated here.

[0064] In some embodiments, the rotational speed of the floating cutter 3 is n1, and n1 ≥ 2000 r / min. The high-speed rotation of the floating cutter 3 enables the floating cut of the seaweed material, effectively avoiding the problem of slow rotation speed failing to cut the seaweed. For example, taking the distance between the end face of the floating cutter 3 facing the perforated plate 2 (or the large end face of the floating cutter 3) and the side of the perforated plate 2 adjacent to the floating cutter 3 (or the side of the perforated plate 2 facing the discharge area 112) as less than 2 mm, the floating cutter 3 can cut the seaweed when the rotational speed of the first rotating shaft 4 is above 2000 rpm.

[0065] like Figure 1 and Figure 2 As shown, in some embodiments, the floating cutting device further includes a cleaning component 6, which is located in the feeding area 111 and is used to clean the side of the perforated plate 2 facing the feeding area 111 to prevent the seaweed material from clogging the feed hole 21, maintain the continuous and smooth conveying of the seaweed material, and thus further improve the working performance of the floating cutting device.

[0066] It should be noted that, since the size of the feed hole 21 on the perforated plate 2 is often small, the seaweed material will gradually accumulate on the end face of the perforated plate on one side of the feeding area 111 when it passes through the feed hole 21. In particular, the accumulation of seaweed foreign matter that cannot pass through the feed hole 21 will gradually block the feed hole 21. Therefore, it is necessary to set up a cleaning component 6 to continuously clean the end face of the perforated plate on one side of the feeding area 111.

[0067] Furthermore, there is a non-hard contact between the cleaning component 6 and the perforated plate 2.

[0068] like Figure 1 and Figure 2 As shown, in some embodiments, the cleaning component 6 is rotatably connected to the feeding area 111, and the pivoting direction of the cleaning component 6 is consistent with the first direction.

[0069] It should be noted that the cleaning component 6 can clean the seaweed material on the side of the perforated plate 2 facing the feeding area 111 by means of rotation cleaning or other methods such as moving cleaning, as long as it can achieve good cleaning of the end face of the perforated plate.

[0070] like Figure 1 and Figure 2As shown, in some embodiments, the floating cutting device further includes a second rotating shaft 7 and a second power input 8. The second rotating shaft 7 is rotatably connected to the machine body 1. Therefore, it can be known that the axial direction of the second rotating shaft 7 is the pivot direction of the cleaning assembly 6. Thus, the axial direction of the second rotating shaft 7 is consistent with the first direction. At least a portion of the second rotating shaft 7 is located in the feeding area 111 and is connected to the cleaning assembly 6. The second power input 8 is drivenly connected to the end of the second rotating shaft 7 away from the cleaning assembly 6 to drive the cleaning assembly 6 to rotate relative to the orifice plate 2.

[0071] Understandably, the structure of the second power input component 8, the second rotating shaft 7 and the cleaning component 6 working together can realize the automatic adjustment of the rotation speed of the cleaning component 6, further optimizing the automation level of the floating cutting device, so as to automatically complete the cleaning operation of the end face of the hole plate and reduce the intensity of manual labor.

[0072] Specifically, a second bearing housing 15 can be installed on the outside of the machine body 1. A second bearing is disposed inside the second bearing housing 15. The second rotating shaft 7 passes through the second bearing housing 15 and is rotatably connected to the second bearing, so that the second rotating shaft 7 is reliably supported on the machine body 1 by the second bearing housing 15 and the second bearing, ensuring the rotational performance of the second rotating shaft 7. The second rotating shaft 7 has a first end and a second end arranged opposite to each other along its extension direction. The cleaning assembly 6 can be installed at the first end of the second rotating shaft 7 (that is, at one end of the second rotating shaft 7 located in the feeding area 111), and the second end of the second rotating shaft 7 extends out of the second bearing housing 15 and is connected to the second power input member 8 for transmission, so that the cleaning assembly 6 is driven by the second power input member 8.

[0073] like Figure 1 and Figure 2 As shown, in some embodiments, the floating cutting device further includes a second sealing element 71, which is sleeved on the second rotating shaft 7 to seal the connection between the second rotating shaft 7 and the machine body 1. Specifically, the second sealing element 71 is provided between the inner cavity of the second bearing seat 15 and the outer peripheral surface of the second rotating shaft 7 to prevent the water in the feeding area 111 from seeping into the interior of the second bearing seat 15.

[0074] Similar to the first seal 41, the second seal 71 can be a mechanical sealing structure. The specific selection of the second seal 71 can be determined according to actual needs, and will not be elaborated here.

[0075] like Figure 3 and Figure 4As shown, in some embodiments, the cleaning assembly 6 includes a radiant tube 61 and a nozzle 62. The radiant tube 61 is pivotally mounted in the feed area 111, so the pivoting direction of the radiant tube 61 is the pivoting direction of the cleaning assembly 6. The radiant tube 61 is spaced apart from the orifice plate 2 along a first direction and is adapted to communicate with an external high-pressure water source; the nozzle 62 is disposed on the radiant tube 61 and communicates with the radiant tube 61, and the nozzle 62 is used to spray high-pressure water flow onto the side of the orifice plate 2 facing the feed area 111.

[0076] It is understandable that the cleaning component 6 can form a non-hard contact with the orifice plate 2 by using a structure of radiant tube 61 and nozzle 62. At this time, water is supplied to the radiant tube 61 by an external high-pressure water source, so that the high-pressure water flows through the nozzle 62 and sprays out onto the end face of the orifice plate. The continuously rotating high-pressure water flow impacts and cleans the seaweed material and impurities blocking the end face of the orifice plate and removes them from the end face of the orifice plate, thereby keeping the material passage hole 21 always unobstructed and enabling the floating cutting device to work continuously for a long time.

[0077] Because there is a distance between the radiant tube 61 and the perforated plate 2, the high-pressure water cleaning will not damage the seaweed and foreign objects, and will only serve a cleaning purpose.

[0078] like Figure 3 and Figure 4 As shown, in some embodiments, the water spraying direction of the nozzle 62 forms an angle α with the side of the orifice plate 2 facing the feed area 111 (i.e., the end face of the orifice plate mentioned above), and α is 20°-80°. For example, α can be 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc., but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0079] It should be noted that a cleaning force and a good cleaning effect will only be achieved when the direction of the high-pressure water jet forms an angle with the side of the orifice plate 2 facing the feed area 111. If the direction of the water jet from the nozzle 62 is perpendicular to the side of the orifice plate 2 facing the feed area 111, the cleaning effect will drop rapidly. Of course, too large an angle is also not good, as it means that the distance the water flow has to reach the orifice plate 2 is longer, which reduces the cleaning water pressure and the cleaning effect.

[0080] like Figure 3 and Figure 4 As shown, in some embodiments, the radiation tube 61 is connected to the portion of the second rotating shaft 7 located in the feeding area 111 and extends radially along the second rotating shaft 7. Since the axial direction of the second rotating shaft 7 is orthogonal to the radial direction and the axial direction of the second rotating shaft 7 is consistent with the first direction, it can be known that the extension direction of the radiation tube 61 is orthogonal to the first direction.

[0081] There is at least one radiation tube 61 and they are arranged circumferentially along the second axis of rotation 7. There are multiple nozzles 62, including at least one row of nozzles 62 arranged at intervals along the first direction. Each row of nozzles 62 includes at least two nozzles 62 arranged at intervals along the extension direction of the radiation tube 61. At least one row of nozzles 62 corresponds to one radiation tube 61.

[0082] It is understandable that integrating the radiant tube 61 onto the second rotating shaft 7 enables automatic adjustment of the rotation speed of the radiant tube 61, thereby improving the automation level of the floating cutting device. At the same time, the structure of multiple radiant tubes 61 and multiple nozzles 62 working together can form multiple high-pressure water jets, further enhancing the uniformity of water spraying, which is beneficial to improving the cleaning effect on the orifice plate 2 and reducing the impact damage to the orifice plate 2.

[0083] Specifically, the radiant tube 61 may include a hollow tube body 611 and a plug 612. The plug 612 is used to cover the end of the hollow tube body 611 that is away from the second rotating shaft 7. At this time, the radiant tube 61 forms a hollow structure with one open end. The open ends of multiple radiant tubes 61 can be connected to a connector 63. That is, the connector 63 has multiple interfaces along its circumference. The multiple interfaces are connected one-to-one with the open ends of multiple radiant tubes 61. The end of the connector 63 that is away from the radiant tube 61 can be connected to the first end of the second rotating shaft 7. The nozzle 62 has a small through hole inside and is connected to the internal channel of the radiant tube 61. When high-pressure water is introduced into the connector 63, the high-pressure water will be sprayed outward through the internal channel of the connector 63 → the internal channel of the radiant tube 61 → the small internal channel of the nozzle 62.

[0084] like Figure 1 As shown, in some embodiments, the second rotating shaft 7 has a water injection channel 72, which can extend along the axial direction (i.e., the first direction) of the second rotating shaft 7. The first end of the water injection channel 72 is adapted to be connected to an external high-pressure water source, and the second end of the water injection channel 72 is connected to the radiant tube 61. Based on the above structure, it can be seen that the second end of the water injection channel 72 is connected to the radiant tube 61 through the connecting pipe 63, so as to integrate the water supply structure of the radiant tube 61 onto the second rotating shaft 7, reducing the number of parts and the difficulty of supplying water to the radiant tube 61, making the floating cutting device compact and highly integrated.

[0085] like Figure 5 and Figure 6 As shown, in some embodiments, the cleaning assembly 6 includes a cleaning blade 64 and an elastic member 65. The cleaning blade 64 is pivotally mounted in the feed area 111 and abuts against the side of the orifice plate 2 facing the feed area 111. The elastic member 65 is disposed between the cleaning blade 64 and the machine body 1 and can press the cleaning blade 64 toward the orifice plate 2.

[0086] It is understandable that the cleaning component 6 can also be designed as a mating structure formed by the cleaning blade 64 and the elastic element 65. In this case, the cleaning blade 64 is pressed against the end face of the perforated plate by the elastic element 65. By utilizing the hard contact between the cleaning blade 64 and the end face of the perforated plate, the laver material and impurities attached to the end face of the perforated plate are cleaned by a combination of stirring, pushing and cutting. The material passage hole 21 will be cleared wherever the cleaning blade 64 passes, so as to keep the material passage hole 21 continuously unobstructed.

[0087] Compared with the cleaning component 6 formed by the structure of radiation tube 61 and nozzle 62, this cleaning component 6 will cut off a portion of tough impurities, but the proportion of tough impurities cut off is very small and will not affect the subsequent high detection foreign matter separation process requirements.

[0088] The elastic element 65 serves two purposes: firstly, it uses its pressure to reliably press the cleaning blade 64 against the end face of the orifice plate; secondly, if a large amount of material accumulates on the end face of the orifice plate during the cleaning operation, the cleaning blade 64 can overcome the pressure of the elastic element 65 and temporarily leave the end face of the orifice plate, preventing the cleaning blade 64 from jamming and burning out the motor (i.e., the impact on the motor in the second power input component 8 when the cleaning blade 64 is connected to the second rotating shaft 7) or causing damage to the machine parts.

[0089] like Figure 5 and Figure 6 As shown, in some embodiments, the cleaning assembly 6 further includes an anti-tangling cover 66, which is rotatably connected to the body 1. The anti-tangling cover 66 has a second receiving cavity 661 that opens toward the perforated plate 2. One end of the cleaning blade 64 away from the perforated plate 2 is slidably connected to the anti-tangling cover 66 along a first direction and covers the second receiving cavity 661. An elastic member 65 is located in the second receiving cavity 661 and sandwiched between the cleaning blade 64 and the anti-tangling cover 66, so that the anti-tangling cover 66 can protect the elastic member 65 and effectively prevent the seaweed material in the feeding area 111 from getting tangled on the elastic member 65, thus affecting the cleaning operation of the cleaning assembly 6.

[0090] The elastic element 65 can be a compression spring, which can be fitted onto the second rotating shaft 7 and located between the cleaning knife 64 and the bottom of the second receiving cavity 661.

[0091] like Figure 5 and Figure 6 As shown, in some embodiments, the cleaning blade 64 and the portion of the second rotating shaft 7 located in the feeding area 111 are slidably connected along the first direction. The anti-tangling cover 66 is sleeved on the second rotating shaft 7 to integrate the cleaning blade 64 onto the second rotating shaft 7, thereby enabling automatic adjustment of the rotation speed of the cleaning blade 64 and improving the automation level of the floating cutting device.

[0092] Specifically, the anti-tangling cover 66 can be a disc-shaped structure, which is fixedly installed at the first end of the second rotating shaft 7 and can rotate together with the second rotating shaft 7. The cleaning knife 64 can be fitted into the first end of the second rotating shaft 7 through its central circular hole and can slide along the axial direction of the second rotating shaft 7. The compression spring can be fitted onto the outer periphery of the second rotating shaft 7 and is located between the cleaning knife 64 and the anti-tangling cover 66.

[0093] In some embodiments, the rotational speed of the cleaning blade 64 is n2, and n2 ≤ 100 r / min.

[0094] It should be noted that the cleaning component 6 needs to rotate slowly. The purpose of rotating slowly is to reduce the damage of the cleaning blade 64 to foreign objects. Since the cleaning blade 64 is in rigid contact with the perforated plate 2, anything that can be cut will be cut, and anything that cannot be cut will be pushed away to clear the material passage 21. During the cutting process, the integrity of foreign objects such as nylon filaments will be damaged, which will weaken the purpose of floating cutting. Therefore, it is only necessary to make its rotation speed sufficient to clean the perforated plate 2 (that is, control the rotation speed as much as possible so that the cleaning blade 64 does not generate cutting force on foreign objects such as nylon filaments, but can only scrape the seaweed material on the end face of the perforated plate).

[0095] like Figure 5 and Figure 6 As shown, in some embodiments, the cleaning blade 64 is a toothed blade with the number of teeth N, where 2≤N≤12. N can be, for example, 2, 3, 5, 7, 9, 11, 12, etc., but is not limited to the listed values. Other unlisted values ​​within this range are also applicable. Note that the number of teeth must be an integer.

[0096] It should be noted that too few teeth on the cleaning blade 64 will affect the cleaning effect, while too many teeth will easily block the flow path of the seaweed, resulting in insufficient flow. Therefore, the number of teeth on the cleaning blade 64 needs to be designed according to the actual situation.

[0097] like Figure 1 and Figure 2 As shown, in some embodiments, the body 1 includes a housing 16 and a door 17, the housing 16 having an open end in a first direction, and the door 17 being connected to the housing 16 to cover the open end of the housing 16 and define a first receiving cavity 11 between them.

[0098] The feeding area 111 is closer to the machine door 17 than the discharging area 112.

[0099] Understandably, the combination of the casing and the door allows for manual opening of the door to clean the feeding area after the floating cutting device has been working for a period of time, or when the concentration of impurities in the feeding area is relatively high.

[0100] The working process of the fresh seaweed floating cutter will now be explained in detail, taking into account its specific structure:

[0101] 1) Connect the feed inlet to the raw material supply from the previous production process. The raw material is a mixture of "seaweed raw material + water". The supply method can be natural flow or connected to the feed pump. Connect the discharge outlet directly to the next working mechanism or to the suction pump.

[0102] 2) Start the first power input unit to drive the floating cutter to rotate at high speed to float and cut the seaweed material; at the same time, start the second power input unit to drive the cleaning component to rotate at a slow speed;

[0103] 3) Start the feeding pump and / or suction pump to begin operation. Under the pressure of the feeding pump or the suction of the suction pump, the material enters the feeding area through the feed inlet, then enters the discharge area through the material passage hole, and finally enters the next operation process through the discharge outlet.

[0104] As the laver material enters the discharge area from the feeding area, it passes through the feed hole and a high-speed rotating floating cutter. The floating cutter cuts the laver material exiting the feed hole. During the floating cutting process, the tender laver algae are shredded by the sharp cutter, while tougher foreign objects such as nylon ropes and nylon filaments are not cut or are cut very little. This results in shredded laver particles and uncut, tough impurities, creating conditions for high detection and sorting of foreign objects in the subsequent grate-type laver.

[0105] Meanwhile, when the floating cutting device uses a cleaning assembly formed by radiant tubes and nozzles, the continuously rotating high-pressure water flow can impact and clean the laver material and impurities clogging the end face of the orifice plate 1, keeping the material passage unobstructed and ensuring the long-term continuous automated operation of the floating cutting device. Of course, after the floating cutting device has been working for a period of time, if the impurity concentration in the feeding area is relatively high, the machine door needs to be manually opened for manual cleaning of the feeding area.

[0106] When the floating cutting device uses a cleaning assembly consisting of a cleaning blade and an elastic element, the cleaning blade rotates slowly under the drive of the second power input element. The cleaning blade is pressed against the end face of the perforated plate by a compression spring. By utilizing the hard contact between the cleaning blade and the end face of the perforated plate, the laver material and impurities attached to the end face of the perforated plate are cleaned by a combination of stirring, pushing and cutting. The material passage holes where the cleaning blade passes will be cleared to keep the material passage holes continuously unobstructed.

[0107] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, 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 this invention.

[0108] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0109] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0110] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0111] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0112] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A floating cutting device for fresh laver, characterized in that, include: The machine body has a first receiving cavity and is provided with a feed inlet and a discharge outlet; A perforated plate is disposed in the first receiving cavity and divides the first receiving cavity into a feeding area and a discharging area along a first direction. The feeding area is connected to the feeding port, and the discharging area is connected to the discharging port. The perforated plate is provided with a material passage hole that penetrates the perforated plate along its thickness direction. A floating cutter is disposed in the discharge area and is rotatable relative to the discharge area. The pivot direction of the floating cutter and the thickness direction of the perforated plate are both consistent with the first direction. The floating cutter and the perforated plate are arranged at intervals along the first direction.

2. The fresh laver floating cutting device according to claim 1, characterized in that, Also includes: A first rotating shaft and a first power input component, wherein the first rotating shaft is rotatably connected to the machine body, at least a portion of the first rotating shaft is located in the discharge area and connected to the floating cutter, and the first power input component is drively connected to the end of the first rotating shaft opposite to the floating cutter to drive the floating cutter to rotate relative to the orifice plate; and / or A first sealing element is fitted onto the first rotating shaft to seal the connection between the first rotating shaft and the machine body.

3. The fresh laver floating cutting device according to claim 1, characterized in that, It also includes a cleaning component, which is located in the feeding area and is used to clean the side of the perforated plate facing the feeding area to prevent the seaweed material from clogging the feeding hole.

4. The fresh laver floating cutting device according to claim 3, characterized in that, The cleaning component is rotatably connected to the feeding area, and the pivoting direction of the cleaning component is consistent with the first direction.

5. The fresh laver floating cutting device according to claim 4, characterized in that, Also includes: A second rotating shaft and a second power input unit, the second rotating shaft being rotatably connected to the machine body, at least a portion of the second rotating shaft being located in the feeding area and connected to the cleaning assembly, the second power input unit being drively connected to the end of the second rotating shaft opposite to the cleaning assembly to drive the cleaning assembly to rotate relative to the orifice plate; and / or The second sealing element is sleeved on the second rotating shaft to seal the connection between the second rotating shaft and the machine body.

6. The fresh laver floating cutting device according to claim 5, characterized in that, The cleaning component includes: A radiant tube, which is pivotally mounted in the feed area, is spaced apart from the orifice plate along the first direction and is adapted to communicate with an external high-pressure water source; A nozzle is disposed on the radiant tube and communicates with the radiant tube. The nozzle is used to spray high-pressure water flow onto the side of the orifice plate facing the feed zone.

7. The fresh laver floating cutting device according to claim 6, characterized in that, The spray direction of the nozzle forms an angle α with the side of the orifice plate facing the feed area, and α is 20°-80°.

8. The fresh laver floating cutting device according to claim 5, characterized in that, The cleaning component includes: A cleaning blade, pivotally mounted in the feed area, abutting against the side of the orifice plate facing the feed area; An elastic element is disposed between the cleaning blade and the machine body, and the elastic element is capable of pressing the cleaning blade toward the orifice plate.

9. The fresh laver floating cutting device according to claim 8, characterized in that, The cleaning assembly further includes an anti-tangling cover, which is rotatably connected to the body. The anti-tangling cover has a second receiving cavity that opens toward the orifice plate. One end of the cleaning blade away from the orifice plate is slidably connected to the anti-tangling cover along the first direction and covers the second receiving cavity. The elastic element is located in the second receiving cavity and is sandwiched between the cleaning blade and the anti-tangling cover.

10. The fresh laver floating cutting device according to any one of claims 1-9, characterized in that, The body includes a housing and a door. The housing is open at one end in the first direction. The door is connected to the housing to cover the opening of the housing and define the first receiving cavity between them. The feeding area is closer to the machine door than the discharging area.

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