A device and method for unwinding and flattening kelp seedlings before stringing

Abstract

The present application relates to a kind of kelp seedlings before being on rope disentangling and flattening device, including rack, and in order to be equipped with conveying assembly, disentangling component and homogenization flattening component on rack. Conveying assembly is equipped with first power device, at least two rotatable rollers and conveying belt, and roller is driven connection with first power device and drives conveying belt to move. Disentangling component is equipped with several groups along conveying direction, including second power device, eccentric rotating member, floating connection structure and mounting bracket, and eccentric rotating member is connected with floating connection structure. Homogenization flattening component is arranged below the load section of conveying belt. The present application also discloses a kind of kelp seedlings before being on rope processing method. The present application is realized through the cooperation of disentangling component and homogenization flattening component, and realizes the disentangling, loosening and thickness homogenization of kelp seedlings in continuous operation process, so that kelp seedlings are in uniform, low overlap flattened state before being on rope and output to the on-rope work station, improve the stability of supply and the consistency of on-rope density.

Description

Technical Field

[0001] This invention relates to the field of equipment technology for kelp seedling cultivation, and in particular to a device and method for untangling, flattening and homogenizing kelp seedlings before they are roped. Background Technology

[0002] Kelp cultivation typically requires securing kelp seedlings to seedling ropes before releasing them into the sea for further growth. The quality of the rope attachment directly affects the survival rate and growth consistency. Therefore, the ideal condition before rope attachment is: loose kelp seedlings with low aggregation and tangling, low overlap, relatively uniform thickness and distribution, and continuous and stable feeding. However, in actual production, kelp seedlings are wet and prone to sticking and tangling. After being removed from the nursery or temporarily transferred, they often form series tangles and localized thick piles, leading to large fluctuations in feeding, uneven density, frequent manual loosening and line tethering, and consequently reducing rope attachment efficiency and consistency.

[0003] Existing related patent technologies mostly focus on the implementation and optimization of "seedling clamping action or seedling rope link". For example, patent CN111557236A discloses a kelp seedling clamping machine and method, which designs an integrated structure for twisting, unwinding, and clamping seedlings to achieve mechanized operation of fixing kelp seedlings to seedling ropes. Patent CN117530169A discloses a kelp seedling rope passing device and swing suppression method, which uses structures such as lifting and suppression plates to suppress seedling rope shaking to improve rope clamping efficiency. None of the above solutions consider the impact of the uniformity of the kelp seedlings before entering the rope-laying station on the kelp seedling cultivation effect, and lacks targeted solutions for breaking agglomeration and entanglement, achieving uniform thickness, and continuous feeding. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for untangling and spreading kelp seedlings before they are roped, in order to solve the problems of stacking, uneven thickness and series entanglement that exist in the continuous feeding process of kelp seedlings before they are roped.

[0005] To achieve the above objectives, this invention discloses a device for unwinding and leveling kelp seedlings before they are attached to ropes. The device includes a frame and a conveying assembly, an unwinding assembly, and a leveling assembly mounted on the frame. The unwinding assembly and the leveling assembly are arranged sequentially along the conveying direction of the conveying assembly. The conveying assembly includes a first power unit, rollers, and a conveyor belt. The first power unit and the rollers are mounted on the frame. At least two rollers are provided, and each roller is rotatably mounted on the frame. The conveyor belt is sleeved around the outside of the rollers. At least one roller is connected to the first power unit via a transmission mechanism, and the roller drives the conveyor belt to move. The unwinding assembly is arranged in several groups along the conveying direction of the conveying assembly. Each unwinding assembly includes a second power unit, an eccentric rotating component, a floating connection structure, and mounting brackets. The mounting brackets are fixedly mounted on the frame and located on both sides of the conveying assembly. The floating connection structure is mounted on the mounting brackets. Both ends of the eccentric rotating component are rotatably connected to the floating connection structure. The floating connection structure allows the eccentric rotating component to move vertically. The second power unit is mounted on the floating connection structure and is drively connected to the eccentric rotating component. The line connecting the mounting brackets at both ends of the eccentric rotating component is perpendicular to the conveying direction of the conveying assembly. A gap is reserved between the eccentric rotating component and the conveyor belt. The homogenizing and leveling assembly is used to level the seaweed seedlings on the conveyor belt, reducing the thickness of the seaweed seedlings.

[0006] Preferably, the eccentricity of the eccentric rotating component is e, and the range of e is 5mm to 20mm; the rotational speed of the eccentric rotating component is n, and the range of n is 30rpm to 150rpm; the minimum dynamic clearance width between the eccentric rotating component and the conveyor belt is g. min g min The setting range is 3mm~10mm.

[0007] Preferably, the floating connection structure includes an elastic element and a rotating shaft connector. One end of the elastic element is fixedly connected to the rotating shaft connector, and the other end is connected to the mounting bracket. The rotating shaft of the eccentric rotating element is rotatably mounted on the rotating shaft connector.

[0008] Preferably, the floating connection structure further includes a transition connector, the elastic element is a spring, and both ends of the spring are fixedly connected to the transition connector. One of the transition connectors is connected to the mounting bracket, and the other transition connector is connected to the rotating shaft connector, which is a bearing.

[0009] Preferably, the homogenizing and leveling component is disposed below the load-bearing portion of the conveyor belt. The homogenizing and leveling component includes a base plate, a support member, a shock-absorbing device, and a vibrator. The base plate is horizontally mounted on the frame and disposed below the load-bearing portion of the conveyor belt. The base plate is connected to the frame via the shock-absorbing device. The support member is offsetly disposed on the base plate and abuts against the load-bearing portion of the conveyor belt. The vibrator is mounted on the base plate.

[0010] Preferably, the support members are provided in multiple sets. Several support members arranged collinearly along the width direction of the conveyor belt constitute a set. The multiple sets of support members are arranged at intervals along the conveying direction of the conveyor belt, and adjacent sets of support members are staggered.

[0011] Preferably, the distance between the center lines of two adjacent sets of support members arranged along the conveyor belt conveying direction is the inter-set pitch P, and the value of P ranges from 50mm to 150mm; the misalignment distance between the center lines of two adjacent sets of support members in the width direction of the conveyor belt is the lateral offset ΔP, and the setting range of ΔP is from 20mm to 80mm.

[0012] Preferably, the support member is a roller mounted on the base plate.

[0013] Preferably, the shock-absorbing device is a rubber spring.

[0014] Preferably, the vibrator is an eccentric vibrator, which is installed at an angle on the base plate, and the angle between the mounting surface of the vibrator and the vertical direction is 10~30°.

[0015] Preferably, the vibration frequency of the vibrator is f, and the setting range of f is 10Hz~50Hz; the vibration amplitude of the vibrator is A, and the setting range of A is 1mm~8mm.

[0016] Preferably, two vibrators are provided, which are symmetrically arranged at the bottom of the base plate, and the line connecting the vibrators is perpendicular to the conveying direction of the conveyor belt.

[0017] Preferably, the eccentric rotating component is an eccentric roller or an eccentric drum.

[0018] Preferably, the surface of the conveyor belt is provided with oblique opening patterns, and the opening direction of the oblique opening patterns is towards the conveying direction of the conveying component.

[0019] Preferably, the inclined edge of the oblique opening pattern forms an angle with the conveying direction of the conveying component, and the angle is 10°~35°.

[0020] Preferably, the oblique opening pattern is V-shaped, and the cross-sectional shape of the oblique opening pattern is trapezoidal.

[0021] Preferably, the conveying speed of the conveyor belt is v, and the range of v is 0.5m / min to 5m / min.

[0022] This invention also discloses a pretreatment method for kelp seedlings before rope mounting, employing a kelp seedling untangling and spreading equalization device, comprising the following steps: S1, Feeding: Wet kelp seedlings taken from the seedling tank are continuously fed into the feed end of the untangling and spreading equalization device, spreading the kelp seedlings on the surface of the conveyor belt of the conveyor assembly. S2, Untangling: The second power device of the untangling assembly drives the eccentric rotating component to rotate, and the periodic asymmetric disturbance of the eccentric rotating component applies a lateral pushing and loosening action to the tangled and connected kelp seedlings. At the same time, the floating connection structure drives the eccentric rotating component to move adaptively in the vertical direction, avoiding rigid compression of the kelp seedlings and realizing the untangling and separation of the kelp seedlings. S3, Equalization and Spreading: The kelp seedlings are conveyed to the position of the equalization and spreading component by the conveyor belt. The component promotes the kelp seedlings to spread and rearrange along the width direction of the conveyor belt, completing the equalization process. S4, Discharge: The spread kelp seedlings are conveyed to the rope mounting station.

[0023] Preferably, in step S1, the surface of the conveyor belt is provided with oblique opening patterns, the openings of which face the conveying direction of the conveyor belt, and the oblique opening patterns guide the kelp seedlings to spread along the width direction of the conveyor belt through directional friction.

[0024] Preferably, in step S3, the homogenizing and leveling component is positioned below the load-bearing portion of the conveyor belt. The homogenizing and leveling component includes a base plate, support members, a shock-absorbing device, and a vibrator. The base plate is horizontally mounted on the frame and positioned below the load-bearing portion of the conveyor belt. The base plate is connected to the frame via the shock-absorbing device. The support members are offset from the base plate and abut against the load-bearing portion of the conveyor belt. The vibrator is mounted on the base plate. The offset support members cause the conveyor belt to alternately form free-sinking zones at different positions under the weight of the material and vibration, breaking the stable stacking structure formed by the material along the conveying direction or the width of the conveyor belt during transport. This promotes multi-directional relative displacement and redistribution of the kelp seedlings under the vibration disturbance of the vibrator.

[0025] The present invention has the following beneficial effects:

[0026] 1. This invention, through the cooperation of the untangling component and the homogenizing and leveling component, achieves the untangling, loosening and thickness homogenization of kelp seedlings during continuous operation, so that the kelp seedlings are output to the rope-laying station in a uniform and low-overlapping flat state before being roped, thereby improving the stability of material supply and the consistency of rope-laying density.

[0027] 2. Through the synergistic effect of the staggered discontinuous support structure and composite vibration, the stability of the local thick stack and winding structure is continuously weakened, which is conducive to the formation of a more uniform thickness distribution and lower agglomeration residue under continuous operation conditions.

[0028] 3. The method mainly relies on structural guidance and vibration disturbance, without depending on rigid compression or forced leveling, which reduces the risk of squeezing and pulling on flexible, high-water-content kelp seedlings and helps maintain the integrity of the seedlings.

[0029] 4. Unwinding and averaging processes can be completed stably without reducing the operating speed, reducing the need for manual unwinding, line stopping and tidying, and improving the efficiency and consistency of pre-winding treatment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure provided in a specific embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of the concealed conveyor belt provided in a specific embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the untangling component provided in a specific embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional schematic diagram of the untangling component provided in a specific embodiment of the present invention;

[0034] Figure 5 This is a partially enlarged schematic diagram of point E provided in a specific embodiment of the present invention;

[0035] Figure 6 This is a top view schematic diagram provided in a specific embodiment of the present invention;

[0036] Figure 7 This is a cross-sectional view of A~A provided in a specific embodiment of the present invention;

[0037] Figure 8 This is a partially enlarged schematic diagram of point F provided in a specific embodiment of the present invention;

[0038] Figure 9 This is a cross-sectional view of B~B provided in a specific embodiment of the present invention;

[0039] Figure 10 This is a partially enlarged schematic diagram of point G provided in a specific embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the homogenization and leveling component provided in a specific embodiment of the present invention;

[0041] Figure 12This is a top view of the homogenization and leveling component provided in a specific embodiment of the present invention;

[0042] Figure 13 This is a bottom view of the homogenization and leveling component provided in a specific embodiment of the present invention;

[0043] Figure 14 This is a side view of the homogenization and leveling component provided in a specific embodiment of the present invention;

[0044] Figure 15 This is a side view schematic diagram of the homogenization and leveling component provided in a specific embodiment of the present invention from another perspective;

[0045] Figure 16 This is a side view of a conveyor belt provided in a specific embodiment of the present invention;

[0046] Figure 17 This is a partially enlarged schematic diagram of point H provided in a specific embodiment of the present invention;

[0047] Figure 18 This is a flowchart of the pretreatment method for rope-tying kelp seedlings provided in a specific embodiment of the present invention.

[0048] Explanation of symbols for main components:

[0049] 1. Frame; 21. Conveyor belt; 211. Groove; 22. Roller; 23. First power unit; 3. Unwinding assembly; 31. Eccentric rotating component; 32. Mounting bracket; 33. Floating connection structure; 331. Elastic component; 332. Transition connector; 333. Rotary shaft connector; 34. Second power unit; 41. Base plate; 42. Support component; 43. Shock absorption device; 44. Vibrator. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0051] like Figures 1-17 This invention provides a device for unwinding and leveling kelp seedlings before they are roped, used for pretreatment of kelp seedlings in the rope-tying process. The device includes a frame 1 and a conveying assembly, an unwinding assembly 3, and a leveling assembly mounted on the frame 1. The unwinding assembly 3 and the leveling assembly are arranged sequentially along the conveying direction of the conveying assembly.

[0052] The conveying assembly includes a first power unit 23, rollers 22, and a conveyor belt 21. The first power unit 23 and rollers 22 are mounted on a frame 1. At least two rollers 22 are provided, and the rollers 22 are rotatably mounted on the frame 1. The conveyor belt 21 is sleeved on the outside of the rollers 22. The first power unit 23 can be a motor. At least one roller 22 is connected to the first power unit 23 for transmission, and the roller 22 drives the conveyor belt 21 to move. At least two rollers 22 are provided, and the two rollers 22 are respectively located at both ends of the frame 1. The two rollers 22 are connected to the frame 1 through bearings, so that they can rotate on the frame 1. One is the driving roller 22, and the other is the driven roller 22. The conveyor belt 21 is sleeved on the outside of the driving roller 22 and the driven roller 22. The driving roller 22 is connected to the motor through a belt, synchronous belt, or gear transmission. The driving roller 22 drives the conveyor belt 21 to move, and the conveyor belt 21 drives the driven roller 22 to rotate.

[0053] The surface of the conveyor belt 21 is provided with obliquely opening patterns, the openings of which face the conveying direction of the conveying assembly. These oblique opening patterns allow the seaweed seedlings to spread laterally during conveying. The oblique opening patterns are V-shaped and symmetrically arranged about the axis of symmetry of the conveyor belt 21. The cross-sectional shape of the oblique opening patterns is trapezoidal. The oblique opening patterns can be achieved by creating grooves 211 on the surface of the conveyor belt 21, such as... Figures 16-17 The cross-sectional shape of the groove 211 can be set as trapezoidal.

[0054] Simultaneously, the conveyor belt speed is adapted to avoid material deviation caused by excessively strong or weak guiding force of the texture. The conveyor belt speed v is adjusted to 2m / min, and the setting range of conveyor speed v is 0.5m / min~5m / min. This speed range can take into account the processing capacity of the device and the time for untangling and homogenizing kelp seedlings. The low speed is suitable for the working conditions of thick kelp seedlings that are easy to entangle, while the high speed is suitable for the working conditions of thin kelp seedlings with good looseness, so as to achieve efficient processing of different material states.

[0055] In other embodiments, the oblique opening texture can also be an isosceles trapezoid, figure-eight, herringbone, oblique groove, etc., as long as there are two symmetrically arranged oblique sides. Alternatively, it can be a texture with directional friction characteristics, such as a dot array; the texture angle and cross-sectional shape can be matched according to the material and speed.

[0056] The inclined edge of the oblique opening pattern forms an angle with the conveying direction of the conveying component, with the angle being 10°~35°, preferably 15°~25°. Through the above-mentioned pattern structure, under the action of vibration disturbance, a directional frictional guiding effect is generated on the material, which transforms the relative slippage of the material in the conveying direction into an expansion trend along the width direction of the conveyor belt 21. It works in conjunction with the homogenization and flattening component to promote the gradual lateral unfolding of the kelp seedlings, suppress stacking and deviation, and facilitate the formation of a flattened state with relatively uniform thickness, suitable for the subsequent seedling rope process.

[0057] like Figures 3-5 The untangling assembly 3 is positioned above the bearing surface of the conveyor belt 21 and at the front of the homogenization conveying area. It is used to pre-treat and untangle the kelp seedlings entering the conveyor belt 21. Three sets of untangling assemblies 3 are arranged along the conveying direction of the conveyor assembly. Each untangling assembly 3 includes a second power unit 34, an eccentric rotating component 31, a floating connection structure 33, and a mounting bracket 32. The mounting bracket 32 ​​is fixedly mounted on the frame 1 and located on both sides of the conveyor assembly. The floating connection structure 33 is mounted on the mounting bracket 32. Both ends of the eccentric rotating component 31 are rotatably connected to the floating connection structure 33, which allows the eccentric rotating component 31 to move vertically. The second power unit 34 is mounted on the floating connection structure 33 and is drive-connected to the eccentric rotating component 31. The second power unit 34 can be a motor or a motor with a gearbox. The motor shaft or gearbox output shaft can be connected to the eccentric rotating component 31 shaft using a coupling to achieve a drive-connection between the two. The line connecting the mounting brackets 32 at both ends of the eccentric rotating component 31 is perpendicular to the conveying direction of the conveying assembly. A predetermined gap is maintained between the eccentric rotating component 31 and the conveyor belt 21.

[0058] The eccentric rotating component 31 uses an eccentric roller with an eccentricity e set to 10mm, and the range of e is 5mm~20mm. This range ensures that the periodic asymmetric disturbance generated during the rotation of the eccentric rotating component has a suitable displacement amplitude, effectively applying lateral pushing and loosening action to the entangled kelp seedlings while avoiding excessive disturbance amplitude that could cause the material to be thrown away or the conveying to be unstable. The rotational speed n of the eccentric rotating component 31 is adjusted to 80rpm, and the range of n is 30rpm~150rpm. This range determines the disturbance frequency and the number of disturbances per unit time. Low speed is suitable for kelp seedlings that are flexible and easily damaged, while high speed is suitable for kelp seedlings that are tightly wrapped and require strong disturbance, achieving a balance between untangling effect and material integrity. The dynamic minimum clearance g between the lowest point of the eccentric rotating component 31 and the upper surface of the conveyor belt during operation is defined. min Maintain 5mm, dynamic minimum clearance g minThe setting range is 3mm~10mm. This gap can avoid direct contact between the eccentric rotating parts and the conveyor belt, which would cause wear. At the same time, it can ensure effective disturbance of the kelp seedlings on the surface of the conveyor belt and is suitable for kelp seedling materials with different initial thicknesses.

[0059] During operation, the eccentric rotating component 31 rotates, and its outer edge applies periodic asymmetric disturbance to the kelp seedlings on the conveyor belt 21, causing the material that is in a series or entangled state along the conveying direction to be laterally moved and loosened, thereby causing the entangled structure to unwind and gradually separate. At the same time, the floating connection structure 33 enables the eccentric rotating component 31 to elastically yield when subjected to a large reaction force, avoiding rigid compression of the flexible high-moisture material, thereby effectively weakening the structural entanglement state before the material enters the vibration homogenization area, creating favorable conditions for subsequent leveling and thickness homogenization.

[0060] In this embodiment, the eccentric rotating component 31 is an eccentric roller or an eccentric drum 22. The main structure of both the eccentric roller and the eccentric drum 22 is cylindrical, but the rotating shafts at both ends used to connect with the floating connection structure 33 are eccentrically set, that is, the axis of the rotating shaft is not collinear with the axis of the cylindrical main structure.

[0061] The floating connection structure 33 includes an elastic element 331 and a rotating shaft connector 333. One end of the elastic element 331 is fixedly connected to the rotating shaft connector 333, and the other end is fixedly connected to the mounting bracket 32. The rotating shaft of the eccentric rotating element 31 is rotatably mounted on the rotating shaft connector 333. The rotating shaft connector 333 can be a bearing, a bearing housing with a bearing installed, or a ring, such as an iron ring, so that the eccentric rotating element 31 can rotate under the drive of the second power device 34.

[0062] In this embodiment, the floating connection structure 33 further includes a transition connector 332. The elastic element 331 is a spring, and both ends of the spring are fixedly connected to the transition connectors 332. The transition connectors 332 are mainly used to connect the spring, facilitating the connection between the spring and the mounting bracket 32 ​​and the rotating shaft connector 333. One transition connector 332 is connected to the mounting bracket 32, and the other transition connector 332 is connected to the rotating shaft connector 333. When a portion of the material on the conveyor belt 21 is at a higher height, it will exert an upward force on the eccentric rotating component 31 when it passes under it, causing the eccentric rotating component 31 to move upward and compress the spring. After this portion of material passes, the eccentric rotating component 31 returns to its initial position under the thrust of the spring. In other embodiments, the floating connection structure 33 can be replaced by a spring suspension, rubber buffer, gas spring, or other elastic clearance structure.

[0063] The floating stroke h of the floating connection structure 33 is set to 20mm, and the range of the floating stroke h is 10mm~30mm. This stroke can adapt to fluctuations in the feed thickness. When encountering a local thick pile of kelp seedlings, it can achieve elastic yielding and avoid rigid compression of the kelp seedlings. The elastic return stiffness k of the spring is set to 2N / mm, and the range of the elastic return stiffness k is 0.5N / mm~5N / mm. This stiffness range can limit the upper limit of the contact force between the eccentric rotating part and the kelp seedlings, ensuring yielding sensitivity. At the same time, it can quickly drive the eccentric rotating part to reset after the thick pile of material passes through, ensuring the continuity of the untangling effect.

[0064] In other embodiments, the eccentric rotating component 31 can be replaced by components that generate lateral disturbances, such as an eccentric roller, a swing lever, a flexible brush roller, or an eccentric cam finger. The floating connection structure 33 can be replaced by an elastic relief structure such as a spring suspension, a rubber buffer, or a gas spring. Eccentricity e, rotational speed n, and dynamic minimum clearance g are also relevant. min The floating stroke h and elastic recovery stiffness k can be adjusted within the corresponding setting range according to the degree of entanglement and flexibility of the kelp seedlings. For tightly entangled kelp seedlings, a larger eccentricity and a higher rotation speed are selected, while for kelp seedlings that are flexible and easily damaged, a larger floating stroke and a smaller elastic recovery stiffness are selected.

[0065] like Figures 11-17 The homogenizing and leveling component is used to level the kelp seedlings on the conveyor belt 21, outputting a seedling layer with more uniform thickness and lower overlap, so as to achieve more stable material supply and consistent rope density in the subsequent seedling rope-laying process. The homogenizing and leveling component is located below the load-bearing part of the conveyor belt 21. The load-bearing part of the conveyor belt 21 is the upper belt section of the conveyor belt 21 in a horizontally tensioned state after the conveyor belt 21 is fitted outside the roller 22. This belt section is the core material-bearing area of ​​the conveyor component, and its top surface is used to directly spread, support, and convey the wet kelp seedlings. The homogenizing and leveling component includes a base plate 41, a support member 42, a shock-absorbing device 43, and a vibrator 44. The base plate 41 is horizontally mounted on the frame 1 and located below the load-bearing part of the conveyor belt 21. The support member 42 is offset on the base plate 41 and abuts against the load-bearing part of the conveyor belt 21. The vibrator 44 is mounted on the base plate 41. The base plate 41 and the frame 1 are connected by the shock-absorbing device 43, which is a rubber spring. This ensures that the vibration acts only on the conveyor belt 21 and does not affect other structures.

[0066] In this embodiment, multiple sets of support members are provided. Several support members arranged collinearly along the width direction of the conveyor belt 21 constitute one set. The multiple sets of support members are spaced apart along the conveying direction of the conveyor belt 21, and adjacent sets of support members are staggered. The support member 42 is a roller mounted on the base plate 41. Through this distribution method, the conveyor belt 21 alternately forms free sinking zones at different positions under the weight of the material and vibration, breaking the stable stacking structure formed by the material along the conveying direction or the width direction of the conveyor belt 21 during the conveying process. This causes the kelp seedlings to undergo multi-directional relative displacement and redistribution under the vibration disturbance, which helps to weaken local thick piles and promotes the unfolding of the material along the width direction of the conveyor belt 21, thereby achieving effective homogenization and flattening of the thickness distribution of the kelp seedlings.

[0067] Specifically, the distance between the centerlines of two adjacent sets of support members along the conveying direction is the inter-set pitch P, which is set to 100mm and ranges from 50mm to 150mm. The misalignment distance between the centerlines of two adjacent sets of support members in the width direction of the conveyor belt is the lateral offset ΔP, which is set to 50mm and ranges from 20mm to 80mm. The coordinated setting of the inter-set pitch P and the lateral offset ΔP allows the conveyor belt to alternately form uniform free sinking zones at different positions under the weight and vibration of the material, effectively breaking the stable stacking structure of the material and promoting multi-directional rearrangement of the kelp seedlings.

[0068] In other embodiments, the roller array can be replaced by staggered arc-shaped support strips, intermittent support plates, point support blocks, etc., as long as they can form alternating free sinking zones in the width direction of the conveyor belt 21 and break the stacking stability. The inter-group pitch P and the lateral offset ΔP can be adjusted within the corresponding setting range according to the stacking state of the kelp seedlings. For kelp seedlings with severe stacking, a larger lateral offset and a moderate inter-group pitch are selected.

[0069] Vibrator 44 is an eccentric vibrator, installed at an angle on the base plate 41. Two vibrators 44 are symmetrically arranged at the bottom of the base plate 41, and the line connecting the vibrators 44 is perpendicular to the conveying direction of the conveyor belt 21. The installation angle α between the mounting surface of the vibrator 44 and the vertical direction is set to 20°, with a range of 10°~30°, preferably 15°~25°. This angle range allows the vibration to simultaneously generate appropriate vertical vibration components and lateral disturbance components along the width of the conveyor belt, maximizing the loosening and lateral spreading of the kelp seedlings while ensuring the overall stable operation of the conveyor belt. The vibration frequency f of the vibrator 44 is set to 30Hz, with a range of 10Hz~50Hz. The vibration amplitude A of the vibrator 44 is set to 4mm, with a range of 1mm~8mm. The combination of frequency and amplitude can adjust the homogenization and rearrangement intensity. Low frequency and low amplitude are suitable for easily damaged kelp seedlings, while high frequency and high amplitude are suitable for kelp seedlings with severe stacking, achieving thickness homogenization while protecting the integrity of the material. When the vibrator is working, it generates a composite vibration of vertical and horizontal, which works in conjunction with the misaligned support rollers to promote multi-directional rearrangement and lateral expansion of the kelp seedlings, thereby achieving thickness homogenization.

[0070] The installation angle α, vibration frequency f, and vibration amplitude A can be adjusted within the corresponding setting range according to the stacking state and flexibility of the kelp seedlings. For kelp seedlings with severe stacking, a larger installation angle, higher vibration frequency, and larger vibration amplitude should be selected. For kelp seedlings that are flexible and easily damaged, a smaller installation angle, lower vibration frequency, and smaller vibration amplitude should be selected.

[0071] like Figure 18 The present invention also discloses a method for pretreatment of kelp seedlings before they are roped, which uses a device for untangling and spreading kelp seedlings, and includes the following steps:

[0072] Step S1 is the feeding process, the core of which is to lay a uniform material distribution foundation for subsequent processing. The wet kelp seedlings taken from the seedling tank need to be continuously fed into the feeding end of the unwinding and spreading equalization device to avoid batch accumulation that would cause the subsequent unwinding and equalization processes to fail. At the same time, the kelp seedlings are naturally spread on the surface of the conveyor belt 21 by the transmission component. This design corresponds to the transmission structure of the roller 22 of the transmission component in the device. By utilizing the continuous movement characteristics of the conveyor belt 21, the kelp seedlings are initially dispersed, reducing the initial stacking degree and providing favorable conditions for subsequent unwinding processing.

[0073] Meanwhile, the surface of the conveyor belt 21 is provided with obliquely opening patterns, with the openings facing the conveying direction of the conveyor belt 21. The obliquely opening patterns guide the kelp seedlings to spread along the width direction of the conveyor belt 21 through directional friction. The obliquely opening patterns on the surface of the conveyor belt 21 are set in such a way that the openings face the conveying direction. The core function of these patterns is to utilize the "directional friction" between the patterns and the kelp seedlings. When the kelp seedlings move with the conveyor belt 21, the oblique edges of the patterns will generate lateral frictional force on the kelp seedlings along the width direction of the conveyor belt 21. This converts the kinetic energy of the kelp seedlings along the conveying direction into spreading force in the width direction, causing the kelp seedlings to initially spread along the width direction during the feeding stage.

[0074] In this embodiment, the conveyor belt 21 operates at a speed of 2 m / min. The obliquely open textured patterns with a 20° texture angle on the surface guide the kelp seedlings to initially spread along the width of the conveyor belt 21 through directional friction. The conveying speed can be adjusted within the range of 0.5 m / min to 5 m / min, and the texture angle can be adjusted within the range of 10° to 35°, depending on the thickness and looseness of the kelp seedlings.

[0075] Step S2 is the untangling process, a crucial step in resolving the problem of kelp seedlings becoming entangled in series. This step is entirely achieved using the untangling component 3 of the device. The second power unit 34 drives the eccentric rotating component 31 to rotate, utilizing the unique "periodic asymmetric disturbance" characteristic of the eccentric structure to apply a lateral pushing and loosening effect to the entangled and series-connected kelp seedlings. Compared to traditional rigid untangling structures, this disturbance method can more precisely disrupt the entanglement nodes of the kelp seedlings, promoting their unwinding and separation. Simultaneously, the elastic design of the floating connection structure 33 in the device (such as springs and rubber buffers) allows the eccentric rotating component 31 to adaptively move vertically when subjected to the reaction force of the material, creating elastic clearance and effectively avoiding rigid compression or pulling damage to the highly water-content, flexible kelp seedlings, ensuring the gentleness of the untangling process and the integrity of the material.

[0076] In this embodiment, the second power unit 34 drives an eccentric roller with an eccentricity of 10mm and a rotation speed of 80rpm to rotate, applying a lateral pushing and loosening action to the entangled kelp seedlings. The floating connection structure 33 achieves vertical adaptive movement with a floating stroke of 20mm and an elastic recovery stiffness of 2N / mm. The dynamic minimum gap between the eccentric roller and the conveyor belt 21 is maintained at 5mm to avoid rigid compression and achieve the unwinding and separation of the kelp seedlings. The eccentricity, rotation speed, floating stroke, elastic recovery stiffness, and dynamic minimum gap can be adjusted within a corresponding range according to the degree of entanglement and flexibility of the kelp seedlings.

[0077] Step S3 is the homogenization and leveling process. The kelp seedlings are conveyed to the homogenization and leveling component by the conveyor belt 21. The component is used to make the kelp seedlings spread out and rearrange along the width of the conveyor belt 21 to complete the homogenization process and form a low overlap state. The homogenization and leveling component is located below the load-bearing part of the conveyor belt 21. Its structural layout is completely consistent with the device design: the base plate 41 is horizontally installed on the frame 1 and connected to the frame 1 through the shock absorption device 43 (such as a rubber spring). This ensures the installation stability of the component and isolates vibration, preventing vibration from being transmitted to the frame 1 and other components and affecting the overall operation. The support component 42 is staggered on the base plate 41 and abuts against the conveyor belt 21. When the support component 42 is a roller, it is arranged in groups of three, with the axis of the same group collinear and adjacent groups staggered. This staggered design allows the conveyor belt 21 to form alternating free sinking zones between the support components 42 under the weight of the material and the action of vibration. The unsupported parts of the conveyor belt 21 sink naturally, breaking the stable stacking structure of the kelp seedlings along the conveying direction or width direction, and causing the locally thick pile of kelp seedlings to loosen as the conveyor belt 21 sinks.

[0078] Simultaneously, the vibrators 44 (preferably two symmetrically arranged eccentric vibrators 44, installed at an angle with their connection line perpendicular to the conveying direction) installed on the base plate 41 generate vibration disturbances. Their inclined installation method can simultaneously generate vertical and lateral vibration components, forming a composite vibration effect. Under the synergistic effect of structural guidance and composite vibration disturbances in the free sinking zone, the kelp seedlings undergo multi-directional relative displacement and redistribution, continuously loosening the stacked material and promoting its spread along the width direction of the conveyor belt 21, ultimately achieving a uniform thickness and low overlap of the kelp seedlings, effectively solving the problems of unstable flattening effect and localized thick stacking obstruction in the existing technology.

[0079] Step S4 is the material discharge process, in which the unwrapped and evenly spread kelp seedlings are output to the seedling rope feeding process.

[0080] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for untangling and spreading kelp seedlings before they are attached to ropes, characterized in that, include: The frame and the conveying assembly, unwinding assembly and homogenizing and leveling assembly mounted on the frame, wherein the unwinding assembly and homogenizing and leveling assembly are arranged sequentially along the conveying direction of the conveying assembly; The conveying assembly includes a first power unit, a roller, and a conveyor belt. The first power unit and the roller are mounted on the frame. At least two rollers are provided. The rollers are rotatably mounted on the frame. The conveyor belt is sleeved on the outside of the rollers. At least one of the rollers is connected to the first power unit in a transmission manner. The roller drives the conveyor belt to move. The unwinding assembly is arranged in several groups along the conveying direction of the conveying assembly. The unwinding assembly includes a second power device, an eccentric rotating component, a floating connection structure, and a mounting bracket. The mounting bracket is fixedly installed on the frame and located on both sides of the conveying assembly. The floating connection structure is installed on the mounting bracket. The two ends of the eccentric rotating component are rotatably connected to the floating connection structure. The floating connection structure is used to move the eccentric rotating component in the vertical direction. The second power device is installed on the floating connection structure and is connected to the eccentric rotating component in a transmission manner. The line connecting the mounting brackets at both ends of the eccentric rotating component is perpendicular to the conveying direction of the conveying assembly. A gap is reserved between the eccentric rotating component and the conveyor belt. The floating connection structure includes an elastic element and a rotating shaft connector. One end of the elastic element is fixedly connected to the rotating shaft connector, and the other end is connected to the mounting bracket. The rotating shaft of the eccentric rotating element is rotatably mounted on the rotating shaft connector. The floating connection structure further includes a transition connector, the elastic element is a spring, and both ends of the spring are fixedly connected to the transition connector. One of the transition connectors is connected to the mounting bracket, and the other transition connector is connected to the rotating shaft connector, which is a bearing. The homogenizing and leveling component is used to level the kelp seedlings on the conveyor belt; The homogenizing and leveling assembly is located below the load-bearing portion of the conveyor belt. The homogenizing and leveling assembly includes a base plate, a support member, a shock-absorbing device, and a vibrator. The base plate is horizontally mounted on the frame and located below the load-bearing portion of the conveyor belt. The base plate is connected to the frame via the shock-absorbing device. The support member is offsetly mounted on the base plate and abuts against the load-bearing portion of the conveyor belt. The vibrator is mounted on the base plate.

2. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The conveyor belt has a conveying speed of v, which is set within the range of 0.5 m / min to 5 m / min; the eccentricity of the eccentric rotating component is e, which is set within the range of 5 mm to 20 mm; the rotational speed of the eccentric rotating component is n, which is set within the range of 30 rpm to 150 rpm; and the minimum dynamic clearance width between the eccentric rotating component and the conveyor belt is g. min g min The setting range is 3mm~10mm.

3. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The vertical stroke of the floating connection structure is h, and the value of h ranges from 10mm to 30mm; the elastic recovery stiffness of the elastic element is k, and the value of k ranges from 0.5N / mm to 5N / mm.

4. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The support members are provided in multiple sets. Several support members arranged collinearly along the width direction of the conveyor belt constitute a set. The multiple sets of support members are arranged at intervals along the conveying direction of the conveyor belt, and adjacent sets of support members are staggered. The distance between the center lines of two adjacent sets of support members arranged along the conveying direction of the conveyor belt is the inter-set pitch P, and the value of P ranges from 50mm to 150mm. The misalignment distance of the center lines of two adjacent sets of support members in the width direction of the conveyor belt is the lateral offset ΔP, and the setting range of ΔP is from 20mm to 80mm.

5. The device for untangling and spreading kelp seedlings before rope mounting according to claim 4, characterized in that: The support component is a roller mounted on the base plate.

6. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The shock absorption device is a rubber spring.

7. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The vibrator is an eccentric vibrator, which is installed at an angle on the base plate. The angle between the installation surface of the vibrator and the vertical direction is 10° to 30°. The vibration frequency of the vibrator is f, which is set within the range of 10Hz to 50Hz. The vibration amplitude of the vibrator is A, which is set within the range of 1mm to 8mm.

8. The device for untangling and spreading kelp seedlings before rope mounting according to claim 7, characterized in that: Two vibrators are provided, symmetrically arranged at the bottom of the base plate, and the line connecting the vibrators is perpendicular to the conveying direction of the conveyor belt.

9. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The eccentric rotating component is an eccentric roller or an eccentric drum.

10. The device for untangling and spreading kelp seedlings before rope mounting according to claim 1, characterized in that: The surface of the conveyor belt is provided with oblique opening patterns, the opening direction of which faces the conveying direction of the conveying component; the oblique side of the oblique opening patterns forms an angle with the conveying direction of the conveying component, the angle being 10°~35°.

11. The device for untangling and spreading kelp seedlings before rope mounting according to claim 10, characterized in that: The oblique opening pattern is V-shaped, and the cross-sectional shape of the oblique opening pattern is trapezoidal.

12. A method for pre-treatment of kelp seedlings before rope mounting, comprising the kelp seedling untangling and spreading equalization device described in any one of claims 1 to 11, characterized in that, Includes the following steps: S1. Feeding: The wet kelp seedlings taken from the seedling pond are continuously fed into the feeding end of the device, so that the kelp seedlings are spread on the surface of the conveyor belt of the conveying component. S2. Untangling process: The second power device of the untangling component drives the eccentric rotating part to rotate. The periodic asymmetric disturbance of the eccentric rotating part applies a lateral pushing and loosening effect to the tangled and connected kelp seedlings. At the same time, the floating connection structure drives the eccentric rotating part to move adaptively in the vertical direction, avoiding rigid pressure on the kelp seedlings and realizing the untangling and separation of the kelp seedlings. S3. Homogenization and leveling treatment: Kelp seedlings are conveyed to the homogenization and leveling component by the conveyor belt. The component is used to make the kelp seedlings spread out and rearranged along the width of the conveyor belt to complete the homogenization treatment. S4. Discharge: The flattened kelp seedlings are discharged to the rope feeding station.

13. The method for pretreatment of kelp seedlings before rope mounting according to claim 12, characterized in that: In step S1, the surface of the conveyor belt is provided with oblique opening patterns, the openings of which face the conveying direction of the conveyor belt, and the oblique opening patterns guide the kelp seedlings to spread along the width direction of the conveyor belt through directional friction.

14. The method for pretreatment of kelp seedlings before rope-laying according to claim 12, characterized in that, In step S3, the homogenizing and leveling component is disposed below the load-bearing portion of the conveyor belt. The homogenizing and leveling component includes a base plate, a support member, a shock-absorbing device, and a vibrator. The base plate is horizontally mounted on the frame and disposed below the load-bearing portion of the conveyor belt. The base plate is connected to the frame through the shock-absorbing device. The support member is offsetly disposed on the base plate and abuts against the load-bearing portion of the conveyor belt. The vibrator is mounted on the base plate. By using staggered support components, the conveyor belt alternately forms free sinking zones at different positions under the weight of the material and vibration, breaking the stable stacking structure formed by the material along the conveying direction or the width of the conveyor belt during the conveying process, and causing the kelp seedlings to undergo multi-directional relative displacement and redistribution under the vibration disturbance of the vibrator.

Images