Filling equipment for bio-based degradable sandbag sand barrier

Abstract

The invention relates to the technical field of machinery for packaging materials, in particular to filling equipment for a bio-based degradable sandbag sand barrier. The equipment comprises a base, the base is provided with an annular belt conveyor (the annular belt conveyor comprises a chain belt, a placing base and a first driving source), a material placing disc, a shaping ring, a pushing mechanism, a discharging mechanism (the discharging mechanism comprises a hopper, a filter screen, an impurity filtering slope plate, a vibration motor, a groove body, a screw rod, a spiral blade and a second driving source) and a special sandbag (the special sandbag comprises a woven bag, a supporting column, a thin iron wire, a bottom support and a first magnet). The intermittent pushing mechanism comprises an arc rail pushing disc, a pin shaft, a grooved wheel, a driving wheel and a steering engine; all the components cooperate to achieve conveying, opening, filling and pushing of the specially-made sandbags. The problem of how to fill the bio-based degradable sandbags in batches is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of machinery for packaging materials, and in particular to a filling device for bio-based degradable sandbags and sand barriers. Background Art

[0002] Currently, in the field of sand prevention and control, biodegradable sandbag barriers are being used as a new sand fixation measure due to their significant advantages. They use biomass raw materials such as cassava and starch, which are fermented by microorganisms to produce small-molecule lactic acid, which is then condensed and melt-spun into filaments for weaving. Under the action of microorganisms, they can completely decompose into water and carbon dioxide, eliminating chemical pollution. Their field shelf life is up to eight years, extending their effective protection time by three times that of traditional sand barriers. Relevant prior art for sandbag barriers is disclosed in the Chinese Patent Library, such as the sandbag barrier loading vehicle with publication number CN114802834B and the sandbag former guide device for a wing bag sand barrier laying machine with publication number CN111114899A. The application of biodegradable sandbags faces the technical challenge of batch filling. However, the above-mentioned existing technologies (CN114802834B and CN111114899A) have the following problems: they do not disclose how to fill batches of biodegradable sandbags. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a filling device for bio-based degradable sandbags and sand barriers, which solves the problem of how to fill batches of bio-based degradable sandbags.

[0004] The present invention discloses a filling device for bio-based degradable sandbags and sand barriers, comprising a base, an annular belt conveyor in an annular layout, and fixed on one side of the base; the annular belt conveyor is connected to a first driving source in a transmission manner to realize intermittent operation of the chain belt, and a placement seat is fixed at equal intervals on the surface of the chain belt, and the placement seat is used to place special sandbags; a swing tray is fixed on the base and is located on one side of the annular belt conveyor; a shaping ring is fixed on the upper surface of the swing tray, and is used to expand the special sandbag to form a cylindrical shape, and the axis of the shaping ring intersects with the moving trajectory of the special sandbag; a pushing mechanism is fixed on the base, with the output end facing the shaping ring, and is used to push the special sandbag in the placement seat to the adsorption area above the shaping ring; a unloading mechanism is fixed on the side of the swing tray, and the discharge port of the unloading mechanism is aligned with the center of the shaping ring, and is connected to the second driving source in a transmission manner, and is used to discharge the biomass raw materials and fill them into the special sandbags.

[0005] As an optimized solution for the material swing tray, the material swing tray is in the shape of a disc.

[0006] As a specific solution of the pushing mechanism, the pushing mechanism can adopt a cylinder or an electric push rod.

[0007] As a specific solution of the ring belt conveyor, the ring belt conveyor includes a bottom bracket, and the four sprockets are rotatably connected to the four corners of the bottom bracket through bearing seats; the chain belt is a closed ring structure, connected end to end by chain links, and surrounds the four sprockets. The chain links and the sprocket teeth are engaged for transmission, one of the sprockets is connected to the first drive source for transmission, and the placement seat is fixed on the chain link of the chain belt; the annular track is fixed to the bottom bracket at the outer edge of the chain belt to form a closed annular guide groove, and is adapted to the roller of the placement seat.

[0008] As a specific scheme of the unloading mechanism, the unloading mechanism includes a hopper, and a filter screen is installed inside the hopper to filter impurities in the biomass raw materials; a filter slope is connected to one side of the hopper to guide the discharge of impurities; a vibration motor is installed on the hopper to assist the filter screen in filtering; the bottom of the hopper is connected to the feed end of the trough body, and the trough body is fixed to the swing plate to accommodate the screw, spiral blades and transport the biomass raw materials; the screw is arranged inside the trough body, and a spiral blade is installed on the screw, and one end of the screw is connected to the second drive source.

[0009] As a specific plan for special sandbags, the special sandbags include a woven bag, with support columns fixed on the left and right edges of the top of the woven bag, and multiple thin iron wires inlaid on the inner layer of the outer surface. The thin iron wires are used to maintain the shape of the woven bag after it is expanded; the bottom of the woven bag is integrally connected to the base, and a first magnet is built into the center of the base; arc grooves are processed on the left and right edges of the shaping ring, and the arc grooves match the support columns; a second magnet is provided on the swing tray, and the second magnet cooperates with the first magnet to drive the base through the shaping ring and be adsorbed and fixed on the surface of the swing tray.

[0010] As an optimization scheme of the present invention, the present invention also includes an intermittent pushing mechanism, which is connected to the swing material tray and is used to push the special sandbags away from the original landing point; the intermittent pushing mechanism includes an arc track pushing plate, the pin shaft is connected to the center of the swing material tray, the arc track pushing plate and the groove wheel are respectively fixed at both ends of the pin shaft and linked, the driving wheel is connected to the power source servo, and the groove wheel and the driving wheel cooperate to form an intermittent transmission mechanism to realize the intermittent rotation and pushing of the arc track pushing plate.

[0011] The beneficial effects of the present invention are: This invention solves the problem of how to load batches of biodegradable sandbags. Through the closed-loop intermittent operation of an endless belt conveyor, the specially designed sandbags are continuously transported and switched between workstations, improving batch loading efficiency and saving space. The specially designed sandbags work in conjunction with shaping rings, using magnetic attraction, support column breakage, and thin wire to maintain their shape, enabling automatic expansion and fixation, reducing manual intervention. The unloading mechanism filters impurities through a filter screen and vibrating motor, and accurately unloads the material via a spiral conveyor, ensuring raw material purity and loading accuracy. The coordinated operation of these components enables automated continuous production, improving overall loading stability and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram showing the appearance of the filling equipment for the bio-based degradable sandbag sand barrier of the present invention.

[0013] Figure 2 It is a schematic diagram of the overall structure of the endless belt conveyor of the present invention.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the blanking mechanism of the present invention.

[0015] Figure 4 This is a schematic diagram of the assembly structure of the special sandbag, placement seat, and shaping ring of the present invention.

[0016] Figure 5 This is a diagram showing the state of the special sandbag of the present invention when it is contracted.

[0017] Figure 6 This is a diagram of the special sandbag of the present invention after it is expanded.

[0018] Figure 7 This is a schematic assembly diagram of the intermittent pushing mechanism of the present invention from the first perspective.

[0019] Figure 8 This is a schematic assembly diagram of the intermittent pushing mechanism of the present invention from a second viewing angle.

[0020] Figure 9 It is a schematic diagram of the installation structure of the linkage belt of the present invention.

[0021] Figure 10 This is a schematic diagram of the installation structure of the infrared sensing device of the present invention.

[0022] Figure 11 This is a diagram showing the infrared sensing device of the present invention in use.

[0023] Figure 12 This is a schematic diagram of the assembly structure of the new second driving source of the present invention.

[0024] Figure 13 This is a schematic diagram of the partial assembly structure of the new second driving source of the present invention.

[0025] In the figure, 1. base; 2. placement seat; 3. bottom bracket; 4. sprocket; 5. chain belt; 6. ring track; 7. swing plate; 8. shaping ring; 9. side bracket; 10. hopper; 11. filter screen; 12. filter slope plate; 13. trough body; 14. side bracket; 15. screw; 16. spiral blade; 17. vibration motor; 18. woven bag; 19. support column; 20. thin wire; 21. bottom bracket; 22. first magnet; 23. second magnet; 24. arc groove ; 25. Arc track push plate; 26. Pin shaft; 27. Grooved wheel; 28. Claw; 29. ​​Concave arc surface; 30. Driving wheel; 31. Driving pin; 32. Notch; 33. Servo; 34. Material receiving port; 35. Linkage belt; 36. Infrared transmitter; 37. Infrared sensor; 38. Turntable; 39. Teeth; 40. Sprocket; 41. First bevel gear; 42. Second bevel gear; 43. Transmission shaft; 44. Support; 45. Belt; 46. Column; 47. Arc track. DETAILED DESCRIPTION

[0026] In order to clearly understand the technical solution of the present application, the filling equipment of a bio-based degradable sandbag sand barrier provided by the present application will be described in detail below with reference to specific embodiments and drawings.

[0027] The terms used in the following examples are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of this application, the singular expressions "a," "an," "above," "the," and "this" are intended to include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the following examples of this application, "at least one," "one or more" refer to one, two, or more than two.

[0028] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "one embodiment," "some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0029] Example 1: This example provides a filling device for biodegradable sandbags and sand barriers, referring to Figure 1, shows the appearance of the filling equipment for bio-based degradable sandbag sand barriers. As can be seen from the figure, the filling equipment includes a base 1, which is a rigid load-bearing structure and serves as the installation basis for all other components. The endless belt conveyor is fixedly connected to one side of the base 1 by bolts through the bottom bracket 3, and the endless belt conveyor has a circular layout; the endless belt conveyor is connected to the first driving source (in this embodiment, the first driving source is directly selected from a servo motor) to enable the chain belt 5 of the endless belt conveyor to achieve intermittent operation. After each operation of the endless belt conveyor, the adjacent placement seats 2 are aligned with the shaping ring 8; the placement seats 2 are fixed at equal intervals on the surface of the chain belt 5, and a single placement seat 2 is adapted to a single special sandbag. The material tray 7 is fixedly installed on the base 1 on one side of the endless belt conveyor, and the material tray 7 has a disc-shaped structure. A shaping ring 8 is fixed to the upper surface of the swinging tray 7. The central axis of the shaping ring 8 intersects the trajectory of the custom sandbag, ensuring that the custom sandbag is accurately adsorbed after being pushed onto the shaping ring 8. The interaction between the custom sandbag and the shaping ring 8 causes the custom sandbag to unfold into a cylindrical shape, facilitating subsequent loading of the biomass feedstock. A propulsion mechanism (e.g., a pneumatic cylinder or electric push rod) is bolted to the base 1 on the inside of the endless belt conveyor via side brackets 9, with the output end facing toward the shaping ring 8. The discharge mechanism is fixed to the side of the swinging tray 7 via side brackets 14. The discharge port is aligned with the center of the shaping ring 8, ensuring smooth delivery of the biomass feedstock into the custom sandbag. The discharge mechanism is in transmission connection with a second drive source (in this embodiment, a stepper motor is directly used as the second drive source), driving the biomass feedstock out of the discharge port of the discharge mechanism and into the custom sandbag within the shaping ring 8. After the endless belt conveyor completes an intermittent operation (at this time the shaping ring 8 is aligned with the adjacent placement seat 2), the output end of the pushing mechanism extends to push the special sandbag in the placement seat 2 to the adsorption area above the shaping ring 8. At this time, the special sandbag is collinear with the central axis of the shaping ring 8 to ensure alignment.

[0030] Specifically, refer to Figure 2, shows a schematic diagram of the overall structure of an endless belt conveyor. As can be seen from the figure, the endless belt conveyor includes a bottom bracket 3, and four sprockets 4 are rotatably connected to the four corners of the bottom bracket 3 through bearing seats, so that the sprockets 4 can rotate around their own axes. The chain belt 5 is a closed annular structure, connected end to end by chain links; the chain belt 5 is wrapped around the circumference of the four sprockets 4, and the chain links are meshed with the teeth of the sprockets 4 for transmission; one of the sprockets 4 is connected to the first drive source, and the remaining sprockets 4 are driven sprockets 4, which only rotate passively. The placement seat 2 is fixed to the chain links of the chain belt 5 by welding or other means, and moves synchronously with the chain belt 5. The annular track 6 is fixedly installed on the bottom bracket 3 at the outer edge of the chain belt 5 to form a closed annular guide groove, and the annular track 6 is adapted to the roller of the placement seat 2. The movement trajectory of the chain belt 5 and the placement seat 2 is jointly defined by the arrangement of the sprocket 4 and the annular track 6, which ensures the stability of the movement of the placement seat 2; at the same time, in conjunction with the driving force of the first driving source, it ensures that multiple placement seats 2 can achieve intermittent movement along the closed-loop trajectory; so that the special sandbags on each placement seat 2 can fall into the shaping ring 8 in turn, and the closed-loop design of the annular belt conveyor also saves space to a certain extent.

[0031] Specifically, refer to Figure 3 , which shows a schematic diagram of the three-dimensional structure of the feeding mechanism. As can be seen from the figure, the feeding mechanism includes a hopper 10, which is the component that initially receives the raw materials. A filter screen 11 is installed inside the hopper 10, and the filter screen 11 is used to filter impurities in the biomass raw materials. A filter plate 12 is connected to one side of the hopper 10 in an integral manner, and a vibration motor 17 is installed on the hopper 10. Under the combined action of the vibration motor 17 and the filter screen 11, impurities in the biomass raw materials enter the filter plate 12 due to the obstruction of the filter screen 11 and are guided out by the filter plate 12. The biomass raw materials then pass through the filter screen 11 and enter the trough body 13 below. The bottom of the hopper 10 is connected to the feed end of the trough body 13. The trough body 13 is a component that accommodates the screw 15, the spiral blade 16, and is used to transport the biomass raw materials. The trough body 13 is supported by a side bracket 14, which is fixed to the swing tray 7. The screw 15 is arranged inside the trough body 13, and a spiral blade 16 is installed on the screw 15. One end of the screw 15 is connected to the second driving source. Under the drive of the second driving source, the spiral blade 16 runs together with the screw 15 in the trough body 13; the screw 15 and the spiral blade 16 cooperate with each other to push the biomass raw material to move along the length direction of the trough body 13 to realize the transportation of the biomass raw material.

[0032] Specifically, refer to Figure 4-6 ,in, Figure 4 The figure shows the assembly structure of the special sandbag, the placement seat 2 and the shaping ring 8. Figure 5 The diagram shows the state of the special sandbag when it is contracted. Figure 6The image shows the expanded state of the custom sandbag. As can be seen from the above figure, the custom sandbag consists of a woven bag 18, with acrylic support columns 19 bonded to the top and left and right edges of the bag 18. The outer surface of the bag 18 is inlaid with multiple thin wires 20 with a diameter of 0.5-1mm. These wires are embedded in the fabric of the bag 18 and secured by the woven structure to maintain the expanded shape of the bag 18. The bottom of the bag 18 is integrally connected to a base 21 made of HDPE / PP plastic. A first magnet 22 is built into the center of the base 21 (this first magnet 22 is used for subsequent magnetic attraction with a second magnet 23). Arc grooves 24 are machined into the left and right edges of the shaping ring 8. These arc grooves 24 mate with the support columns 19 of the bag 18, providing initial alignment guidance and contact structure for the support columns 19 to break under force. When the base 21 of the woven bag 18 is placed directly above the shaping ring 8, the two support columns 19 at the top of the bag 18 correspond one-to-one with the arc grooves 24 on the left and right sides of the shaping ring 8. At this point, the first magnet 22 at the center of the base 21 and the second magnet 23 on the swing tray 7, through magnetic attraction, drive the base 21 through the shaping ring 8 and secure it to the surface of the swing tray 7. As the base 21 moves downward, the support columns 19 first contact the arc grooves 24 (the edges of the arc grooves 24 constrain the support columns 19). Then, under the combined force of the base 21's weight and the tension of the woven bag 18, the acrylic support columns 19 undergo a brittle fracture. At the moment of contact, the support columns 19 utilize the constraints of the arc grooves 24 to forcibly expand the woven bag 18 (stretching it from its natural state to its working shape). The thin wire 20 on the outside of the woven bag 18 maintains the expanded shape (preventing the woven bag 18 from shrinking due to the breakage of the support columns 19, thus ensuring structural stability).

[0033] The workflow of Example 1 of the present invention is roughly as follows: In the first step, the special sandbags (including support columns 19, thin iron wires 20, and a bottom bracket 21 with a first magnet 22) are placed one by one on the placement seat 2 of the endless belt conveyor; the biomass raw materials are poured into the hopper 10 of the feeding mechanism, and the filter screen 11 and the vibration motor 17 (auxiliary filtration) in the hopper 10 are in a ready-to-work state.

[0034] In the second step, the first driving source (servo motor) drives the ring belt conveyor to operate: the chain belt 5 of the ring belt conveyor is driven by the sprocket 4 to intermittently move along the closed-loop track (guided by the circular track 6 to ensure the stable movement of the placement seat 2). After each intermittent operation, a placement seat 2 is exactly aligned with the shaping ring 8 on the swing plate 7 (that is, the positions of the placement seat 2 and the shaping ring 8 are precisely matched).

[0035] In the third step, after the placement seat 2 and the shaping ring 8 are aligned, the output end of the pushing mechanism (such as a cylinder or an electric push rod) extends to push the special sandbag in the placement seat 2 to the adsorption area above the shaping ring 8. At this time, the central axis of the special sandbag is collinear with the central axis of the shaping ring 8, ensuring accurate alignment of subsequent actions.

[0036] In the fourth step, the first magnet 22 of the special sandbag bottom bracket 21 and the second magnet 23 on the swinging plate 7 generate a magnetic attraction force, driving the bottom bracket 21 to pass through the shaping ring 8 and be adsorbed and fixed on the surface of the swinging plate 7; during the downward movement of the bottom bracket 21, the acrylic support column 19 on the top of the sandbag contacts the arc grooves 24 on both sides of the shaping ring 8, and the arc grooves 24 form a limit for the support column 19; under the combined action of the gravity of the bottom bracket 21 and the tension of the sandbag itself, the support column 19 breaks brittlely; at the same time, the restraining effect of the arc grooves 24 forces the sandbag to be pulled out of its natural contraction state (such as Figure 5 ) stretched into a cylindrical working shape (such as Figure 6 ); After the support column 19 is broken, the thin iron wire 20 (diameter 0.5-1mm) embedded in the outer layer of the sandbag continues to maintain the expanded shape of the sandbag to prevent it from shrinking and provide a stable space for subsequent filling.

[0037] In step 5, the vibration motor 17 in the hopper 10 is started and cooperates with the filter screen 11 to filter the biomass raw materials. Impurities are blocked by the filter screen 11 and discharged through the filter slope 12; qualified raw materials pass through the filter screen 11 and enter the lower trough 13; the screw 15 and spiral blades 16 in the trough 13 are driven by the second driving source to operate, transporting the raw materials along the trough 13 to the discharge port. The discharge port is aligned with the center of the shaping ring 8, and the raw materials fall accurately into the expanded special sandbags, completing the filling. After a single sandbag is filled, the ring belt conveyor continues to the next intermittent operation, driving the next placement seat 2 containing the special sandbag to move to the shaping ring 8, repeating the above "pushing, expanding, filling" process to achieve continuous filling operations.

[0038] The present invention solves the problem of how to load batches of biodegradable sandbags. Through the closed-loop intermittent operation of an endless belt conveyor, continuous conveying and station switching of special sandbags are achieved, improving batch loading efficiency and saving space. The special sandbags cooperate with the shaping ring 8, and with the help of magnetic attraction, the breaking of support columns 19, and thin iron wire 20 to maintain their shape, they are automatically expanded and fixed, reducing manual intervention. The unloading mechanism filters impurities through the filter 11 and vibration motor 17, and accurately unloads the materials through spiral conveying, ensuring the purity of the raw materials and the loading accuracy. The coordinated operation of various components realizes automated continuous production, improving overall loading stability and work efficiency.

[0039] In Example 2, when a special sandbag falls and is attracted to the oscillating tray 7, if the special sandbag is not promptly moved from its original landing point to another part of the oscillating tray 7, it can easily accumulate at the original landing point, thereby affecting the normal landing and handling of the special sandbags. To address this issue, this embodiment also designs an intermittent pushing mechanism. The intermittent pushing mechanism is connected to the oscillating tray 7 and is used to push the special sandbag away from its original landing point. Each rotation pushes the special sandbag a certain distance until it falls from the receiving port 34 into the designated collection device. The specific structure of the intermittent pushing mechanism is as follows.

[0040] refer to Figure 7-8 ,in, Figure 7 The diagram shows the assembly of the intermittent pushing mechanism from the first perspective. Figure 8 Shown is a schematic assembly diagram of the intermittent pushing mechanism from a second perspective. As can be seen from the above two figures, the intermittent pushing mechanism includes an arc track push plate 25, a pin 26 concentrically connected to the center of the swing plate 7, and the arc track push plate 25 is concentrically fixed to one end of the pin 26 at the top of the swing plate 7. A grooved wheel 27 is concentrically fixed to the other end of the pin 26 at the bottom of the swing plate 7. The grooved wheel 27 and the arc track push plate 25 are coaxially linked, that is, when the grooved wheel 27 rotates, the arc track push plate 25 rotates synchronously and at the same angle; the grooved wheel 27 has four claws 28 evenly distributed around its circumference, each of which has a groove at the end to accommodate the drive pin 31 of the drive wheel 30; the outer circumferential surface of the grooved wheel 27 between two adjacent claws 28 is processed with a concave arc surface 29. The drive wheel 30 is rotatably connected to the swing tray 7 via a revolving pair (e.g., bearings). The drive wheel 30 is also coaxially fixedly connected to the output shaft of a servo 33. The servo 33 is fixed to the swing tray 7, providing rotational power for the drive wheel 30. A notch 32 is defined on one side of the outer rim of the drive wheel 30, to which a drive pin 31 is fixedly connected. The claw 28 of the sheave 27 slides through the notch 32 of the drive wheel 30, while the concave arc surface 29 of the sheave 27 slides over the outer rim of the drive wheel 30. The flange of the drive pin 31 slides through the groove of the claw 28. Together, the sheave 27, the drive wheel 30, and the drive pin 31 form a Geneva mechanism.

[0041] Combined with the above connection relationship, the working principle of the intermittent material pushing mechanism is roughly as follows: During each rotation of the drive wheel 30: First, the steering gear 33 drives the drive wheel 30 to rotate. When the drive pin 31 enters the groove of the claw portion 28 of the sheave 27 along the notch 32, the flange of the drive pin 31 and the groove transmit tangential force through sliding adaptation, pushing the sheave 27 to rotate about the pin shaft 26. At this time, the claw portion 28 of the sheave 27 slides within the notch 32 of the drive wheel 30. Because the sheave 27 and the curved track push plate 25 are coaxially linked, when the sheave 27 rotates, the curved track push plate 25 rotates synchronously with the same angle (at this time, each time the sheave 27 rotates 90°, the curved track push plate 25 also rotates 90°). Then, when the drive pin 31 is released from the groove of the sheave 27, the outer edge of the drive wheel 30 contacts the concave arc surface 29 of the sheave 27, limiting the rotation of the sheave 27 through sliding friction, achieving intermittent pause (ensuring that the curved track push plate 25 remains stable and awaits the next material pushing action). At the same time, when the driving wheel 30 is in the initial stationary state (i.e. before each rotation of the driving wheel 30), one of the arc tracks 47 on the arc track pushing plate 25 is concentrically aligned with the shaping ring 8, ensuring that the woven bag 18 can accurately fall into the arc track 47 when it falls, completing the material receiving positioning and providing initial posture guarantee for the subsequent pushing action.

[0042] In Example 3, the intermittent pusher mechanism and chain belt 5 rely on two independent drive sources (the chain belt 5 relies on the first drive source, and the intermittent pusher mechanism relies on the servo 33). This multiple drive source arrangement not only increases equipment cost and energy consumption, but also makes it more likely that the intermittent pusher mechanism and the placement seat 2 of the chain belt 5 cannot achieve precise linkage due to asynchronous operation between the drive sources. To address this issue, this example provides a new first drive source that simultaneously establishes a transmission connection between the intermittent pusher mechanism and the chain belt 5 via a linkage belt 35. This first drive source replaces the original first drive source (i.e., the servo motor in Example 1), achieving linkage between the intermittent pusher mechanism and the placement seat 2 of the chain belt 5 with a single drive. The specific connection relationship of the new first drive source is as follows.

[0043] refer to Figure 9 , which shows a schematic diagram of the installation structure of the linkage belt 35. As can be seen from the figure, the first driving source includes the linkage belt 35, one end of which is transmission-connected to the pin shaft 26, and the other end of the linkage belt 35 is transmission-connected to one of the sprockets 4. At the same time, it is defined that: when the flange of the driving pin 31 enters the groove of the claw portion 28 of the groove wheel 27, the linkage belt 35 links the chain belt 5 and the placement seat 2 to rotate; and when the flange of the driving pin 31 is disengaged from the groove of the claw portion 28 of the groove wheel 27, the linkage belt 35 no longer links the chain belt 5 and the placement seat 2 to rotate. At this time, the shaping ring 8 is arranged opposite to the adjacent placement seat 2, and the shaping ring 8 is arranged concentrically with the adjacent arc track 47 of the lower arc track push plate 25.

[0044] In conjunction with the aforementioned connection, the benefits of providing the linkage belt 35 include: reducing the number of drive sources, lowering equipment costs and energy consumption; achieving precise linkage between the intermittent pusher mechanism and the chain belt 5 placement seat 2, and improving equipment operational stability and efficiency. Furthermore, the linkage belt 35 must be combined with the intermittent pusher mechanism and the endless belt conveyor, and can only achieve the aforementioned effects through transmission connection with the intermittent pusher mechanism's pin 26 and the endless belt conveyor's sprocket 4, respectively. It cannot be used separately.

[0045] In Example 4, it's difficult to precisely coordinate the activation of the push mechanism with the movement of the intermittent push mechanism, which can easily lead to misalignment between their movements, affecting the coordination and efficiency of the equipment. To address this issue, this example incorporates an infrared sensor to achieve coordinated control of the push mechanism and the intermittent push mechanism. The specific structure of the infrared sensor is as follows.

[0046] refer to Figure 10-11 ,in, Figure 10 The figure shows the installation structure of infrared sensing equipment. Figure 11 The diagram shows the infrared sensing device in use. As can be seen from the diagram, the infrared sensing device includes an infrared emitter 36. The vertical line y and the horizontal line x divide the drive wheel 30 into four regions: A, B, C, and D. The notch 32 is located in region A of the drive wheel 30, while the infrared emitter 36 is located in region B of the drive wheel 30. A turntable 38 is concentrically fixed to the output shaft of the servo 33 below the drive wheel 30, and the infrared sensing device is fixedly mounted on the lower surface of the turntable 38. An infrared sensor 37 is mounted on the base 1. When the servo 33's linked drive pin 31 disengages from the groove (rotating the drive wheel 30 in direction a), the infrared emitter 36 in region B of the drive wheel 30 rotates and aligns with the infrared sensor 37. The infrared rays emitted by the infrared emitter 36 are received by the infrared sensor 37 and transmitted back to the controller, which instructs the propulsion mechanism to activate.

[0047] In Example 5, the unloading mechanism relies on the original independent second drive source (i.e., the stepper motor in Example 1) for drive, lacking linkage with the intermittent pushing mechanism. This can lead to asynchrony between the two, resulting in an inability to accurately unload the sandbags after they land on the swing tray 7 and reach the expanded state. This also increases the number of drive sources required for the device. To address this issue, this example replaces the original second drive source with a new one. This second drive source directly utilizes the driving force of the intermittent pushing mechanism, achieving accurate unloading after the sandbags reach the expanded state, thereby achieving linkage between the unloading mechanism and the intermittent pushing mechanism. The specific structure of this second drive source is as follows.

[0048] refer to Figure 12-13 ,in, Figure 12 The figure shows the assembly structure of the new second driving source. Figure 13The diagram shows a partial assembly structure of the new second drive source. As can be seen from the above two figures, the second drive source includes teeth 39: a plurality of teeth 39 are distributed in a fan-shaped array on the circumferential edge of the turntable 38, and the distribution area of ​​the fan-shaped teeth 39 corresponds to the C and D fan-shaped areas of the drive wheel 30 ( Figure 11 (shown in the figure), the sector-shaped teeth 39 on the turntable 38 can mesh with the toothed disc 40. The toothed disc 40 and the first bevel gear 41 are concentrically sleeved on the top of the column 46 in sequence, and the bottom end of the column 46 is rigidly fixed to the base 1. The second bevel gear 42 is concentrically fixed to the transmission shaft 43, which is rotatably connected to the support 44, and the support 44 is fixedly connected to the base 1; the two ends of the belt 45 are respectively connected to the pulley of the transmission shaft 43 and the pulley of the screw 15 of the unloading mechanism, forming a belt drive, realizing power transmission between the transmission shaft 43 and the screw 15. As the drive wheel 30 and the turntable 38 continue to rotate (in the direction a), when the infrared emitter 36 and the infrared sensor 37 gradually become misaligned, the sector-shaped teeth 39 will mesh with the toothed disc 40.

[0049] The driving wheel 30 goes through three stages during one rotation: in the first stage, the indirect linkage arc track push plate 25 completes a single push of the corresponding special sandbag, and at the same time, the indirect linkage placement seat 2 reaches the position relative to the shaping ring 8; in the second stage, the indirect linkage infrared emitter 36 rotates and aligns with the infrared sensor 37, at which time the pushing mechanism pushes the corresponding special sandbag above the shaping ring 8; in the third stage, when the special sandbag below the shaping ring 8 has completed the expansion state, the second driving source there is combined to continue to link the unloading mechanism to complete the loading of the corresponding special sandbag. The present invention realizes linkage between the intermittent pushing mechanism, the endless belt conveyor, the pushing mechanism, and the unloading mechanism by combining the first driving source, the infrared sensing device, and the second driving source, thereby allowing each mechanism to operate in coordination.

[0050] The overall workflow of the present invention is roughly as follows: Initial preparation: Place the special sandbags containing support columns 19, thin iron wires 20 and bases 21 with first magnets 22 one by one on the placement seat 2 of the endless belt conveyor; pour the biomass raw materials into the hopper 10 of the feeding mechanism, and ensure that the filter 11, vibration motor 17 and various linkage components (intermittent pushing mechanism, infrared sensing equipment, etc.) are in a ready-to-work state.

[0051] Linked conveying and workstation switching: The new first driving source simultaneously drives the sprocket 4 of the endless belt conveyor and the pin shaft 26 of the intermittent pushing mechanism through the linkage belt 35, so that the chain belt 5 of the endless belt conveyor moves intermittently along the closed-loop trajectory (guided by the annular track 6). After each intermittent motion, a placement seat 2 is precisely aligned with the shaping ring 8 of the swing plate 7; at the same time, the Geneva mechanism composed of the groove wheel 27 and the driving wheel 30 of the intermittent pushing mechanism is linked, and the arc track pushing plate 25 rotates synchronously and intermittently to prepare for receiving and pushing materials.

[0052] Pushing and aligning the sandbag: When the placement seat 2 is aligned with the shaping ring 8, the infrared sensing device triggers the pushing mechanism to start, and its output end pushes the special sandbag in the placement seat 2 to the adsorption area above the shaping ring 8 to ensure that the central axis of the sandbag is collinear with the shaping ring 8.

[0053] Expanding and fixing the sandbag: The first magnet 22 of the special sandbag base 21 is magnetically attracted to the second magnet 23 of the swing plate 7, driving the base 21 to pass through the shaping ring 8 and be adsorbed and fixed; when the base 21 moves downward, the top support column 19 contacts the arc groove 24 of the shaping ring 8, and breaks brittlely under the action of gravity and tension. The arc groove 24 constrains and forces the sandbag to expand from the contracted state to a cylindrical shape, and the outer thin iron wire 20 maintains the expanded shape.

[0054] Raw material filtration and precise loading: A new secondary drive source utilizes the intermittent pushing mechanism to link the unloading mechanism: When the drive wheel 30 rotates to a specific stage, the teeth 39 of the turntable 38 mesh with the toothed disc 40, driving the screw 15 and spiral blade 16 via bevel gears and a belt drive. A vibration motor 17 in the hopper 10 cooperates with the filter 11 to filter impurities (which are discharged via the filter ramp 12). Qualified raw material is transported through the trough 13 to the discharge port, where it is precisely dropped into the expanded sandbags for loading. After a single sandbag is filled, the intermittent pushing mechanism's curved track pusher 25 pushes it away from its original landing point to prevent accumulation. The endless belt conveyor continues its intermittent operation, driving the next placement seat 2 into position, and the process repeats.

[0055] In the present invention, the new first driving source acts as a single driving force, and simultaneously transmits the intermittent pushing mechanism and the endless belt conveyor through the linkage belt 35, thereby reducing the number of driving sources to reduce cost and energy consumption, and realizing precise linkage between pushing and conveying; the intermittent pushing mechanism avoids sandbag accumulation and ensures a smooth process; the infrared sensing equipment ensures precise coordination between the pushing mechanism and the intermittent pushing mechanism, and improves coordination; the new second driving source uses the power of the intermittent pushing mechanism to reduce the driving source and realize the linkage between unloading and pushing, thereby ensuring precise unloading.

Claims

1. A filling device for biodegradable sandbags and sand barriers, characterized by: It includes a base, an annular belt conveyor with a ring layout, and is fixed on one side of the base; the annular belt conveyor is connected to the first driving source to realize intermittent operation of the chain belt, and the placement seats are fixed at equal intervals on the surface of the chain belt, and the placement seats are used to place special sandbags; the swing tray is fixed on the base and is located on one side of the annular belt conveyor; the shaping ring is fixed on the upper surface of the swing tray, and is used to expand the special sandbag to form a cylindrical shape, and the axis of the shaping ring intersects with the moving trajectory of the special sandbag; the pushing mechanism is fixed on the base, with the output end facing the shaping ring, and is used to push the special sandbag in the placement seat to the adsorption area above the shaping ring; the unloading mechanism is fixed on the side of the swing tray, and the discharge port of the unloading mechanism is aligned with the center of the shaping ring, and is connected to the second driving source for discharging the biomass raw materials and filling them into the special sandbags.

2. The biodegradable sandbag filling device according to claim 1 is characterized by: The material tray is disc-shaped.

3. The biodegradable sandbag filling device according to claim 1 is characterized by: The pushing mechanism can adopt a cylinder or an electric push rod.

4. The biodegradable sandbag filling device according to claim 1 is characterized by: The endless belt conveyor includes a bottom bracket, and the four sprockets are rotatably connected to the four corners of the bottom bracket through bearing seats; the chain belt is a closed ring structure, connected end to end by chain links, and surrounds the four sprockets. The chain links and the sprocket teeth are engaged for transmission, and one of the sprockets is connected to the first driving source for transmission, and the placement seat is fixed on the chain link of the chain belt; the annular track is fixed to the bottom bracket at the outer edge of the chain belt to form a closed annular guide groove, and is adapted to the roller of the placement seat.

5. The biodegradable sandbag filling device according to claim 1 is characterized by: The unloading mechanism includes a hopper with a filter installed inside the hopper for filtering impurities in the biomass raw materials; a filter slope is connected to one side of the hopper for guiding the discharge of impurities; a vibration motor is installed on the hopper to assist the filter in filtering; the bottom of the hopper is connected to the feed end of the trough body, and the trough body is fixed to the swing plate for accommodating the screw, spiral blades and conveying the biomass raw materials; the screw is arranged inside the trough body, and a spiral blade is installed on the screw, and one end of the screw is connected to the second drive source.

6. The biodegradable sandbag filling device according to claim 1, characterized in that: The special sandbag includes a woven bag with support columns fixed on the left and right edges of the top of the woven bag. The inner layer of the outer surface is inlaid with multiple thin iron wires, and the thin iron wires are used to maintain the shape of the woven bag after it is expanded; the bottom of the woven bag is integrally connected to the base, and a first magnet is built into the center of the base; arc grooves are processed on the left and right edges of the shaping ring, and the arc grooves match the support columns; a second magnet is provided on the swing tray, and the second magnet cooperates with the first magnet to drive the base through the shaping ring and be adsorbed and fixed on the surface of the swing tray.

7. The biodegradable sandbag filling device according to claim 1, characterized in that: It also includes an intermittent pushing mechanism, which is connected to the swing material tray and is used to push the special sandbags away from the original landing point; the intermittent pushing mechanism includes an arc track pushing plate, a pin shaft is connected to the center of the swing material tray, the arc track pushing plate and the groove wheel are respectively fixed at both ends of the pin shaft and linked, the driving wheel is connected to the power source servo, and the groove wheel and the driving wheel cooperate to form an intermittent transmission mechanism to realize the intermittent rotation of the arc track pushing plate to push the material.

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