A pneumatic conveying and flattening system for gravity blanket fabric

Abstract

This invention belongs to the field of pneumatic conveying technology, specifically a pneumatic conveying and flattening system for gravity blanket fabric. It includes a conveying frame with multiple fixed bottom arms at its bottom. Drive side rollers are rotatably connected to both ends of the conveying frame, and drive motors are fixed to both ends of the conveying frame. The output ends of a pair of drive motors are respectively connected to a pair of drive side rollers. A conveyor belt is rotatably connected to the outer wall of the conveying frame, and the inner side walls of the conveyor belt are in contact with the outer walls of the pair of drive side rollers. During operation, the entire device, through the cooperation of multiple components, effectively reduces the occurrence of jamming and skewing caused by fabric creases during the conveying of gravity blanket fabric. It also effectively improves the stable conveying effect of the entire device during long-term operation, and while ensuring the main conveying function, it also helps improve the flatness of the fabric surface and the uniformity of the filling distribution, thus improving the quality of the finished product.

Description

Technical Field

[0001] This invention belongs to the field of pneumatic conveying technology, specifically a pneumatic conveying and flattening system for gravity blanket fabric. Background Technology

[0002] Air cushion belt conveyors replace traditional idler roller supports with air film supports. They mainly consist of a fan, a trough-type air chamber with evenly distributed small holes, a conveyor belt, and head and tail drive devices. During operation, the fan continuously supplies air to the air chamber, and the air escapes evenly through the small holes of the trough, forming a continuous air cushion between the conveyor belt and the surface of the trough. This causes the belt to run in a slightly suspended state, thereby converting rolling friction into fluid friction, reducing resistance, and achieving stable conveying.

[0003] Currently, in existing technologies, air cushion belt conveyors mainly consist of an air source device, an air chamber distribution plate, a porous and breathable conveyor belt, and a negative pressure adsorption platform. The air source device supplies air to the air chamber distribution plate, and the airflow lifts the belt after passing through uniformly perforated holes to form an air cushion, allowing the belt-carrying fabric to move smoothly and suspend. The negative pressure adsorption platform is located in the middle of the conveyor, adsorbing the fabric through the belt's pores to make it adhere to the surface. The two work together to achieve low-friction conveying and efficient flattening of the gravity blanket fabric simultaneously.

[0004] When transporting gravity blanket fabric, existing air cushion belt conveyors are prone to local stacking and creases due to the softness and thickness of the fabric during production. Uneven thickness at the creases will disrupt the uniformity of the air cushion thickness, leading to abnormal local stress on the belt, causing fabric deviation, jamming, or even accumulation and blockage, which seriously restricts the smoothness of the conveying. Therefore, a pneumatic conveying and flattening system for gravity blanket fabric is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a pneumatic conveying and flattening system for gravity blanket fabric.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A pneumatic conveying and flattening system for gravity blanket fabric, comprising a conveying frame, with multiple sets of fixed bottom arms fixedly connected to the bottom of the conveying frame, drive side rollers rotatably connected to both ends of the conveying frame, and drive motors fixedly connected to both ends of the conveying frame. The output ends of a pair of drive motors are respectively connected to a pair of drive side rollers. A conveyor belt is rotatably connected to the outer wall of the conveying frame, and the two ends of the inner wall of the conveyor belt are in contact with the outer walls of the pair of drive side rollers. An air chamber is formed at the bottom of the inner side of the conveying frame, and an exhaust plate is connected to the top of the inner side of the air chamber. The top of the air chamber and the exhaust plate... The bottom sections are interconnected; each end of the conveying frame is equipped with a fan, and each pair of fans is connected to an air chamber. The air chamber is equipped with guide ribs for evenly distributing airflow and a pressure stabilizing chamber. The exhaust holes on the exhaust plate are arranged in a staggered array to ensure uniform air cushion pressure in the width direction of the conveyor belt. The top of the conveying frame is also equipped with a flattening component, which is used to assist in the treatment of wrinkles that affect material conveying. Adjustment components are provided on both sides of the top of the conveying frame, which are used to adjust the height of the flattening component. A beating component is provided on one side of the top of the conveying frame, which is used to break up clumps of material in the gravity blanket fabric. The outer side of the patting assembly is equipped with an impact unit, which is used for airflow-assisted patting and dispersing operations. The flattening assembly includes a pair of connecting ventilation pipes, each pair of connecting ventilation pipes being fixedly installed on both sides of the conveying frame. The two pairs of connecting ventilation pipes are connected to an air chamber at one end, and a lightweight rotating cylinder is rotatably connected to the top of each pair of connecting ventilation pipes. A connecting air pipe is fixedly connected to the top of each pair of connecting ventilation pipes. The bottom of the two connecting air pipes is rotatably connected to the top of the lightweight rotating cylinder. An elastic corrugated pipe is connected to one end of each pair of connecting air pipes. A gas collecting square pipe is fixedly connected to the bottom of each pair of gas collecting square pipes. Multiple exhaust slots are opened on one side of the bottom of each pair of gas collecting square pipes. A fixing plate is fixedly connected to the top of each pair of gas collecting square pipes. A limit post is slidably connected to the inner side of the fixing plate. The bottom of the limit post is connected to both sides of the top of the conveying frame. The adjustment assembly includes a pair of connecting rotating columns, both of which are rotatably mounted on the top sides of the conveying frame. A connecting gear plate is fixedly connected to the top of each of the connecting rotating columns. A connecting operating rod is fixedly connected to the top of each of the connecting gear plates. A connecting gear cylinder is rotatably connected to one side of the top of each of the connecting rotating columns. A threaded adjusting rod is threadedly connected to the inner side of each of the connecting gear cylinders. The bottom end of the threaded adjusting rod is connected to the top of the air collecting square tube. Support arms are fixedly mounted on both sides of the top of the conveying frame. A synchronous conical column is rotatably connected to the top of each of the support arms. A conical gear cylinder is fixedly mounted to the top of each of the connecting gear cylinders. The conical gear cylinder is fitted onto the outside of the threaded adjusting rod. The two ends of the synchronous conical column respectively mesh with the top of the pair of conical gear cylinders. The tapping assembly includes a pair of fixed arms, each pair of fixed arms having a bevel gear rotatably connected to its inner side. The ends of the bevel gears near the limiting post mesh with the tops of a pair of lightweight rotating drums. Fixed seats are fixedly connected to both sides of the top of the conveying frame. Bevel gears are rotatably connected to the inner sides of the fixed seats. The ends of the bevel gears near each other mesh with the ends of the bevel gears away from the lightweight rotating drums. A connecting main shaft is fixedly connected to the ends of the bevel gears near each other. Multiple sets of fixed square tubes are fixedly connected to the outer wall of the middle section of the connecting main shaft. Exhaust square tubes are slidably connected to the outer sides of the multiple sets of fixed square tubes. Lightweight fan blades are fixedly connected to the inner sides of the pair of lightweight rotating drums. The impact unit includes multiple sets of exhaust grooves II, each set of exhaust grooves II being located at the ends of multiple sets of exhaust square tubes. Exhaust cylinders are fixedly connected to both sides of the middle of the connecting main shaft. A pair of exhaust cylinders are rotatably connected to a transmission gear plate at their ends, and multiple sets of fixed side plates are fixedly connected to the ends of each pair of exhaust cylinders. The fixed side plates are fixedly connected to the transmission gear plate via bolt and nut assemblies. Threaded columns are fixedly connected to both ends of the multiple sets of exhaust square tubes. Conical toothed cylinders II are rotatably connected to both ends of the multiple sets of fixed square tubes. The conical toothed cylinders II are threadedly connected to the threaded columns. A connecting expansion pipe is connected to one side of the top of each pair of connecting air ducts II. A gas collecting cylinder is connected to the bottom of each pair of connecting expansion pipes. The gas collecting cylinder is sleeved on the outside of the connecting main shaft. The gas collecting cylinder is connected to the exhaust cylinder. A connecting groove is opened at the top of each pair of exhaust cylinders. Exhaust grooves III are opened on the inner sides of the multiple sets of fixed square tubes and exhaust square tubes. The exhaust grooves III are connected to the multiple sets of exhaust grooves II.

[0007] Preferably, a pair of fixed slide rods are fixedly connected to both sides of the bottom of the conveying frame, a limiting slide plate is sleeved on the inner side of each pair of fixed slide rods, a support spring is fixedly connected to the top of each pair of limiting slide plates, the support spring is sleeved in the middle of the fixed slide rods, and a fitting roller is rotatably connected to one side of the top of each pair of limiting slide plates, and the outer wall of the pair of fitting rollers is in contact with the bottom of the conveyor belt.

[0008] Preferably, both sides of the conveying frame are fixedly connected to side slide rails, and a pair of side slide rails are slidably connected to a closed cover.

[0009] Preferably, the side wall of the enclosure is provided with an observation window.

[0010] Preferably, a pair of fixed arms are fixedly connected to both sides of the top of the conveying frame, and the top of the pair of fixed arms is respectively connected to a pair of connecting expansion tubes.

[0011] Preferably, the outer walls of the multiple sets of fixed square tubes are fixed with connecting rings.

[0012] The beneficial effects of this invention are: 1. This invention provides a pneumatic conveying and flattening system for gravity blanket fabric. The overall device, through the cooperation of multiple components, can effectively reduce the occurrence of jamming and skewing caused by creases on the fabric surface when conveying gravity blanket fabric; and effectively improve the stable conveying effect of the overall equipment during long-term operation. While ensuring the main conveying function, it also helps to improve the flatness of the fabric surface and the uniformity of the filling distribution, thereby improving the quality of the finished product.

[0013] 2. This invention provides a pneumatic conveying and flattening system for gravity blanket fabric. A fixed slide bar provides vertical guidance for the limiting slide plate, ensuring that the bonding roller moves only vertically, reducing the possibility of horizontal deviation. An automatic tensioning structure, employing a support spring in conjunction with the limiting slide plate and bonding roller, can compensate for the stretching of the conveyor belt in real time, maintaining appropriate tension without requiring regular manual adjustment, thus reducing maintenance workload. The structure is simple and reliable, occupies little space, and is positioned at the bottom of the conveyor belt's return section without occupying upper operating space. The rubber-coated bonding roller reduces wear on the inner side of the conveyor belt, extending its service life. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0015] In the attached diagram: Figure 1 This is a perspective view of the conveyor frame of the present invention; Figure 2 This is a perspective view of the air chamber in this invention; Figure 3 This is a perspective view of the connecting ring in this invention; Figure 4 This is a three-dimensional view of the synchronous conical column in this invention; Figure 5 This is a perspective view of the second exhaust groove in this invention; Figure 6 This is a perspective view of the main shaft in this invention; Figure 7 This is a perspective view of the exhaust pipe in this invention; Figure 8 This is a perspective view of the connecting duct 2 in this invention; Figure 9 This is a perspective view of the gas collecting square tube in this invention; Figure 10 This is a perspective view of the lightweight fan blade in this invention.

[0016] Legend: 1. Conveyor frame; 2. Fixed base arm; 3. Drive side roller; 4. Drive motor; 5. Conveyor belt; 6. Air chamber; 7. Exhaust plate; 8. Fan; 9. Connecting ventilation duct one; 10. Lightweight rotating drum; 11. Connecting air duct two; 12. Flexible corrugated pipe; 13. Air collecting square tube; 14. Exhaust trough one; 15. Fixed plate; 16. Limiting post; 17. Connecting rotating column; 18. Connecting gear plate; 19. Connecting operating lever; 20. Connecting gear cylinder; 21. Threaded adjusting rod; 22. Support arm one; 23. Synchronous cone column; 24. Conical gear cylinder one; 25. Fixed arm two; 26. Conical gear column; 27. 1. Fixed base; 28. Bevel gear; 29. ​​Connecting spindle; 30. Fixed square tube; 31. Exhaust square tube; 32. Exhaust groove two; 33. Transmission gear plate; 34. Fixed side plate; 35. Fixed bolt; 36. Threaded column; 37. Bevel gear cylinder two; 38. Air collection cylinder; 39. Exhaust cylinder; 40. Connecting groove; 41. Exhaust groove three; 42. Connecting expansion tube; 43. Lightweight fan blade; 44. Fixed slide rod; 45. Limiting slide plate; 46. Support spring; 47. Adhesive roller; 48. Side slide rail; 49. Enclosed cover; 50. Observation window; 51. Fixed arm three; 52. Connecting ring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Specific implementation examples are given below.

[0019] Please see Figures 1-10This invention provides a pneumatic conveying and flattening system for gravity blanket fabric, comprising a conveying frame 1, with multiple sets of fixed bottom arms 2 fixedly connected to the bottom of the conveying frame 1, drive side rollers 3 rotatably connected to both ends of the conveying frame 1, and drive motors 4 fixedly connected to both ends of the conveying frame 1. The output ends of a pair of drive motors 4 are respectively connected to a pair of drive side rollers 3. A conveyor belt 5 is rotatably connected to the outer wall of the conveying frame 1, and the two ends of the inner side wall of the conveyor belt 5 are in contact with the outer side walls of the pair of drive side rollers 3. An air chamber 6 is formed at the bottom of the inner side of the conveying frame 1, and an exhaust plate 7 is connected to the top of the inner side of the air chamber 6. The top of the air chamber 6 and the bottom of the exhaust plate 7 are connected to each other. The conveying frame 1 is equipped with fans 8 at both ends, and each pair of fans 8 is connected to an air chamber 6. The air chamber 6 is equipped with guide ribs for evenly distributing airflow and a pressure stabilizing chamber. The exhaust holes on the exhaust plate 7 are arranged in a staggered array to ensure uniform air cushion pressure in the width direction of the conveyor belt 5. The top of the conveying frame 1 is also equipped with a flattening component, which is used to assist in the treatment of wrinkles that affect material conveying. Adjustment components are provided on both sides of the top of the conveying frame 1, which are used to adjust the height of the flattening component. A beating component is provided on one side of the top of the conveying frame 1, which is used to break up clumps of material in the gravity blanket fabric. An impact unit is provided on the outside of the patting assembly, which is used for airflow-assisted patting and dispersing. The flattening assembly includes a pair of connecting ventilation pipes 9, which are fixedly installed on both sides of the conveying frame 1. The two connecting ventilation pipes 9 are connected to the air chamber 6 at their respective ends. The top of the two connecting ventilation pipes 9 is rotatably connected to a lightweight rotating cylinder 10. The top of the two connecting ventilation pipes 9 is fixedly connected to a connecting air pipe 11. The bottom of the two connecting air pipes 11 is rotatably connected to the top of the lightweight rotating cylinder 10. The two connecting air pipes 11 are connected to an elastic corrugated pipe 12 at their respective ends. The bottom of the two elastic corrugated pipes 12 is fixedly connected to a gas collecting square pipe 13. Multiple sets of exhaust grooves 14 are opened on one side of the bottom of the multiple sets of gas collecting square pipes 13. The top of the two sets of gas collecting square pipes 13 is fixedly connected to a fixing plate 15. The inner side of the two sets of fixing plates 15 is slidably connected to a limit post 16. The bottom of the two sets of limit posts 16 is connected to the top two sides of the conveying frame 1. The adjustment assembly includes a pair of connecting rotating columns 17, both of which are rotatably mounted on the top sides of the conveying frame 1. A connecting gear disc 18 is fixedly connected to the top of each of the connecting rotating columns 17. A connecting operating rod 19 is fixedly connected to the top of each of the connecting gear discs 18. A connecting gear cylinder 20 is rotatably connected to one side of the top of each of the connecting rotating columns 17. A threaded adjusting rod 21 is threadedly connected to the inner side of each of the connecting gear cylinders 20. The bottom end of the threaded adjusting rod 21 is connected to the top of the air collecting square tube 13. Support arms 22 are fixedly mounted on both sides of the top of the conveying frame 1. A synchronous conical column 23 is rotatably connected to the top of each of the support arms 22. A conical tooth cylinder 24 is fixedly mounted to the top of each of the connecting gear cylinders 20. The conical tooth cylinder 24 is sleeved on the outside of the threaded adjusting rod 21. The two ends of the synchronous conical column 23 respectively mesh with the top of the pair of conical tooth cylinders 24. The tapping assembly includes a pair of fixed arms 25, each of which is rotatably connected to a bevel gear 26. The ends of the bevel gear 26 near the limiting post 16 are meshed with the tops of a pair of lightweight rotating drums 10. Fixed seats 27 are fixedly connected to both sides of the top of the conveying frame 1. Bevel gears 28 are rotatably connected to the inner sides of the pair of fixed seats 27. The ends of the bevel gears 28 near each other are meshed with the ends of the bevel gear 26 away from the lightweight rotating drums 10. A connecting main shaft 29 is fixedly connected to the ends of the bevel gears 28 near each other. Multiple sets of fixed square tubes 30 are fixedly connected to the outer wall of the middle section of the pair of connecting main shafts 29. Exhaust square tubes 31 are slidably connected to the outer sides of the multiple sets of fixed square tubes 30. Lightweight fan blades 43 are fixedly connected to the inner sides of the pair of lightweight rotating drums 10. The impact unit includes multiple sets of exhaust grooves 32, each set of exhaust grooves 32 being located at the end of multiple sets of exhaust square tubes 31. Exhaust cylinders 39 are fixedly connected to both sides of the middle of the connecting main shaft 29. A transmission gear plate 33 is rotatably connected to the opposite end of each pair of exhaust cylinders 39. Multiple sets of fixed side plates 34 are fixedly connected to the opposite end of each pair of exhaust cylinders 39. The fixed side plates 34 are fixedly connected to the transmission gear plate 33 via bolt and nut assemblies. Threaded posts 36 are fixedly connected to both ends of the multiple sets of exhaust square tubes 31. Bevel gear cylinders are rotatably connected to both ends of the multiple sets of fixed square tubes 30. 2.37, the bevel gear cylinder 2.37 is threadedly connected to the threaded column 36, a pair of connecting air ducts 2.11 are connected to one side of the top of each pair of connecting air ducts 2.11 are connected to one side of the top of each pair of connecting air ducts 42. A pair of air ducts 38 are connected to the bottom of each pair of connecting air ducts 42. The pair of air ducts 38 are sleeved on the outside of the connecting main shaft 29. The air ducts 38 and the exhaust cylinders 39 are connected to each other. A connecting groove 40 is opened at the top of each pair of exhaust cylinders 39. An exhaust groove 3.41 is opened on the inner side of each of the multiple sets of fixed square tubes 30 and exhaust square tubes 31. The exhaust groove 3.41 is connected to the multiple sets of exhaust grooves 2.32. During operation, multiple sets of fixed base arms 2 are fixed to the workshop floor or equipment base with expansion bolts. The drive motor 4 is connected to the workshop power supply system and frequency converter control cabinet. The air outlets of the two fans 8 are connected to the air inlet ports at both ends of the air chamber 6 through sealed pipelines. The drive motor 4 is started, and the linear speed of the conveyor belt 5 is adjusted to 0.3-0.8 m / s through the frequency converter. The gravity blanket fabric is laid flat at the feed end of the conveyor belt 5. The fans 8 are started simultaneously, and the outlet air pressure of the fans 8 is adjusted to 0.02-0.05 MPa so that the exhaust speed of the exhaust plate 7 can stably support the fabric without blowing it out of place. At this time, the guide ribs in the air chamber 6 evenly distribute the airflow to each exhaust hole, forming a stable air cushion under the conveyor belt 5. The flattening component, adjusting component, beating component, and impact unit are turned on in sequence. The fabric passes through the flattening station and the beating station with the conveyor belt 5 to complete the conveying and pre-treatment. The flattening and beating components are driven by the airflow diverted from the air chamber and are auxiliary functions designed to further improve the condition of the fabric. The stability of the conveying process is mainly determined by the air chamber structure and airflow distribution. The bottom of the connecting ventilation pipe 9 is sealed to the air outlet on the side wall of the air chamber 6 via a flange. The upper and lower ends of the lightweight rotating drum 10 are respectively connected to the connecting air pipe 11 and the connecting ventilation pipe 9 via sealed bearings. The two ends of the elastic corrugated pipe 12 are respectively sealed and fixed to the connecting air pipe 11 and the air collecting square pipe 13 via clamps. The bottom of the limiting post 16 is vertically fixed to the top of the conveying frame 1 via threads. Smooth guide holes are opened at corresponding positions on the fixing plate 15. The guide hole is sleeved on the outside of the limiting post 16, and the clearance fit accuracy is selected as H8 / f7; when the equipment is running, 30%-40% of the air volume in the air chamber 6 is diverted to the flattening component, and the air velocity at the outlet of the exhaust groove 14 is controlled at 3-5m / s. Multiple sets of exhaust grooves 14 are evenly arranged along the width of the fabric to cover the full width of the fabric; the bottom of the connecting rotating column 17 is installed in the bearing seat at the top of the conveying frame 1 through a deep groove ball bearing, and the connecting gear plate 18 and the connecting gear cylinder 20 are meshed with spur gears with a module of 1.5-2mm; The connecting gear cylinder 20 is rotatably engaged with the top of the conveying frame 1 via a thrust bearing to bear the axial load; The threaded adjusting rod 21 adopts a trapezoidal thread, which provides smooth transmission and self-locking, and can lock the height automatically after adjustment; The synchronous cone column 23 has bevel gear structures at both ends and a smooth shaft in the middle, and is horizontally mounted on the top of the support arm 22 via a bearing with a seat. The bevel teeth on both sides mesh with the bevel teeth of the left and right bevel gear cylinders 24 respectively, with a transmission ratio of 1:1 to ensure the synchronous lifting of both sides; This adjusting component is only used to adjust the height of the flattening auxiliary mechanism and does not affect the main conveying system. The system operates as follows: the bottom of the fixed arm 25 is bolted to the top of the conveyor frame 1; both ends of the bevel gear column 26 are machined with bevel teeth and are horizontally mounted on the fixed arm 25 via seated bearings; the top of the lightweight rotary drum 10 is machined with a bevel gear ring, which meshes with the outer bevel teeth of the bevel gear column 26, and the transmission ratio is designed according to the beat frequency, usually 2:1-3:1; the two ends of the connecting main shaft 29 are connected to the two bevel gear columns 26 on both sides via bevel gears 28; the fixed seat 27 is equipped with tapered roller bearings to bear the radial and axial loads of the connecting main shaft 29; the fixed square tube 30 is evenly distributed along the circumference of the connecting main shaft 29. Three to four sets are evenly arranged. The exhaust square tube 31 is sleeved on the outside of the fixed square tube 30 with a clearance fit, and the extension length can be adjusted radially. The lightweight fan blade 43 is made of lightweight plastic or aluminum alloy to reduce airflow resistance loss. This beater assembly also uses split airflow for drive and is an auxiliary function to improve the distribution of filling material. The air collecting cylinder 38 is a fixed annular air chamber structure, which is sleeved on the outside of the connecting main shaft 29 through a sealed bearing. The exhaust cylinder 39 rotates synchronously with the connecting main shaft 29. A dynamic sealing ring is set between the air collecting cylinder 38 and the exhaust cylinder 39 to ensure rotation. The air passage is sealed effectively under the following conditions: Both the fixed square tube 30 and the exhaust square tube 31 have through-hole exhaust grooves 41 inside, serving as airflow channels. Multiple small holes are evenly spaced around the end of the exhaust square tube 31, with the exhaust direction facing the side of the fabric being patted. A beveled cylinder 37 is rotatably mounted on the outer end of the fixed square tube 30 via bearings. Its inner side is machined with internal threads to mate with the threaded post 36, and its outer side is machined with beveled teeth, allowing it to mesh with the transmission gear disc 33 for synchronous adjustment. After adjustment, the fixing bolts 35 on the fixed side plate 34 are tightened to clamp the transmission gear disc 33 and lock it in place. Part of the high-pressure airflow in air chamber 6 is guided upward through the connecting ventilation pipes 9 on both sides, and then passes through the lightweight rotating drum 10, connecting air pipe 11, and elastic corrugated pipe 12 before entering the air collecting square pipe 13. Finally, it is blown downward through multiple exhaust grooves 14 at the bottom of the air collecting square pipe 13, directly acting on the surface of the gravity blanket fabric being conveyed below, using the downward airflow to smooth out the wrinkles on the fabric surface. The elastic corrugated pipe 12 can elastically deform as the air collecting square pipe 13 rises and falls, maintaining a sealed air passage during height adjustment. The fixed plate 15 and the limiting post 16 form a sliding guide pair, restricting the air collecting square pipe 13 to rise and fall only in the vertical direction, reducing the possibility of horizontal deviation or rotation of the air collecting square pipe 13, and ensuring the correct blowing position. Align with the fabric surface; directly utilize the air source of air chamber 6, guide the air through connecting ventilation pipe 19 and connecting air pipe 21 to the air collection square pipe 13 to achieve top-down air blowing and flattening, eliminating the need for an additional fan 8, simplifying the equipment structure and reducing energy consumption; multiple sets of exhaust grooves 14 are evenly arranged along the width of the fabric, covering the entire surface of the fabric and ensuring the smoothing effect of wrinkles; the guide structure of the limiting column 16 and the fixing plate 15, combined with the elastic bellows 12, can maintain the air path sealing stability while achieving height adjustment, improving the equipment's adjustability; rotating the connecting operating lever 19 on either side can drive the corresponding connecting gear plate 18 and connecting rotating column 17 to rotate synchronously, and drive the connecting gear cylinder 20 through the gear meshing transmission between the connecting gear plate 18 and the connecting gear cylinder 20. The connecting gear cylinder 20 rotates around its own vertical axis; the internal thread on the inner side of the connecting gear cylinder 20 engages with the external thread of the thread adjusting rod 21, converting the rotational motion into the vertical linear motion of the thread adjusting rod 21, thereby pushing or pulling the gas collecting square tube 13 up and down along the limiting post 16 to adjust the flattening height; at the same time, when the connecting gear cylinder 20 on the same side rotates, it drives the top conical gear cylinder 24 to rotate synchronously, and through the bevel gear meshing transmission of the synchronous conical column 23, the power is synchronously transmitted to the other side conical gear cylinder 24 and the connecting gear cylinder 20, realizing the synchronous lifting and lowering of the thread adjusting rods 21 on both sides, ensuring the overall horizontal lifting and lowering of the gas collecting square tube 13, and reducing the risk of unilateral tilting and jamming; a single-sided operation connecting rod 19 is adopted, which connects to the connecting gear plate 18 and the connecting gear The cooperation between cylinder 20, synchronous cone column 23, and bevel gear cylinder 24 enables synchronous adjustment on both sides, which is simple to operate and does not require repeated height adjustment on both sides. The trapezoidal thread drive has a self-locking function, and the height can be fixed without additional locking structure after adjustment, reducing the possibility of the air collecting square tube 13 falling due to vibration during equipment operation. The synchronous transmission structure of synchronous cone column 23 and bevel gear cylinders 24 on both sides can ensure that the air collecting square tube 13 remains horizontal during the lifting process, reducing uneven blowing and jamming problems caused by tilting, and improving adjustment accuracy and operational stability. When the airflow flows upward from the connecting ventilation pipe 9 through the interior of the lightweight rotating cylinder 10, it impacts the blades of the lightweight fan blade 43, causing the lightweight fan blade 43 and the lightweight rotating cylinder 10 to rotate around the vertical axis as a whole.The top of the lightweight rotating drum 10 drives the bevel gear column 26 to rotate around the horizontal axis through bevel gear meshing. The other end of the bevel gear column 26 is driven to rotate by bevel gear 28, which drives the connecting main shaft 29 to rotate around its own horizontal axis. When the connecting main shaft 29 rotates, it drives the multiple sets of fixed square tubes 30 and exhaust square tubes 31 on the outer wall to perform circular motion synchronously. The outer end of the exhaust square tube 31 periodically pats the surface of the gravity blanket fabric conveyed below, breaking up the clumps of glass beads and gravity particles filled inside the fabric, improving the uniformity of the filling material distribution. The sliding fit structure of the fixed square tubes 30 and the exhaust square tubes 31 can adapt to different patting radii and extension requirements. The airflow of the conveying air path is fully utilized to drive the lightweight fan blades 43 and the lightweight rotating drum 10. The rotating cylinder 10 serves as the power source for the beating component, eliminating the need for an additional drive motor 4, thus simplifying the structure and reducing energy consumption and maintenance costs. Through a three-stage bevel gear meshing transmission between the lightweight rotating cylinder 10, the bevel gear column 26, and the bevel gear 28, the vertical rotation of the cylinder is converted into horizontal circumferential beating connected to the main shaft 29. The transmission structure is compact and rationally laid out. Multiple sets of circumferentially arranged fixed square tubes 30 and exhaust square tubes 31 enable continuous high-frequency beating, resulting in uniform dispersion and effectively improving the problem of clumping and uneven distribution of filling materials inside the gravity blanket. Part of the high-pressure airflow within the connecting duct 2 11 is guided into the air collecting cylinder 38 through the connecting expansion pipe 42, and then enters the exhaust cylinder 39 through the connecting groove 40. The airflow then enters the exhaust groove 31 inside the fixed square tube 30 and the exhaust square tube 31, and finally sprays out from the exhaust groove 2 32 at the end of the exhaust square tube 31. When the beater component is running, at the moment the end of the exhaust square tube 31 beats the fabric, the exhaust groove 2 32 simultaneously sprays out high-pressure airflow, forming a combined effect of beating and airflow impact, enhancing the dispersing effect on the clumps of filler. At the same time, rotating the transmission gear plate 33 can drive the bevel gear cylinder 2 37 to rotate synchronously. Through the threaded engagement between the bevel gear cylinder 2 37 and the threaded column 36, the threaded column 36 is driven to move radially, thereby causing the exhaust square tube 31 to extend and retract along the fixed square tube 30, adjusting the beating radius and beating force to adapt to gravity blanket fabrics of different thicknesses and fill amounts. The fixed side plate 34 and fixed bolt 35 assembly are used to lock the position of the transmission gear plate 33 after adjustment; the mechanical beating of the fixed square tube 30 and the exhaust square tube 31 combined with the airflow impact of the exhaust groove 32 is a compound dispersing method. Compared with the simple beating structure, it has a more significant effect on dispersing the internal clumps of filling material and can reduce the damage to the surface of the fabric caused by hard beating; the beating tube can be extended and adjusted through the cooperation of the transmission gear plate 33, the bevel gear cylinder 37 and the threaded column 36, which can flexibly adjust the beating radius and force, adapt to various specifications of gravity blanket products, and improve the versatility of the equipment; the airflow impact is achieved by using the original air circuit through the connection expansion tube 42 and the air collection cylinder 38 to achieve airflow impact, without the need for an additional air source, the equipment has a high degree of integration and low energy consumption; The overall device, through the cooperation of multiple components, can effectively reduce the occurrence of jamming and skewing caused by creases on the fabric surface when conveying gravity blanket fabric; and effectively improve the stable conveying effect of the overall equipment during long-term operation. While ensuring the main conveying function, it also helps to improve the flatness of the fabric surface and the uniformity of the filling distribution, thereby improving the quality of the finished product.

[0020] Furthermore, such as Figure 4 , Figure 6 and Figure 7 As shown, a pair of fixed slide rods 44 are fixedly connected to both sides of the bottom of the conveyor frame 1. A limiting slide plate 45 is sleeved inside each pair of fixed slide rods 44. A support spring 46 is fixedly connected to the top of each pair of limiting slide plates 45. The support spring 46 is sleeved in the middle of the fixed slide rods 44. A contact roller 47 is rotatably connected to one side of the top of each pair of limiting slide plates 45. The outer walls of the contact rollers 47 are in contact with the bottom of the conveyor belt 5. During operation, when the bottom of the conveyor belt 5 drops downwards during the return stroke, the pair of support springs 46 can push the limiting slide plate 45 and the contact roller 47 upwards. During operation, the top of the fixed slide rod 44 is fixed to the bottom crossbeam of the conveyor frame 1 by thread or welding. The corresponding position of the limiting slide plate 45 has a smooth sliding hole that fits with the fixed slide rod 44 with a clearance fit. The support spring 46 is a cylindrical helical compression spring, sleeved on the outside of the fixed slide rod 44, with its upper and lower ends abutting against the bottom of the conveyor frame 1 and the top surface of the limiting slide plate 45, respectively. The two ends of the contact roller 47 are installed between the two limiting slide plates 45 via bearings. The roller surface is rubber-coated to increase friction with the conveyor belt 5 and reduce wear. During installation, the support spring 46 is pre-compressed to provide initial tension. The initial compression is 30%-40% of the total spring stroke. The support spring 46 is always in a compressed state, applying a continuous upward elastic thrust to the limiting slide plate 45. The limiting slide plate 45 slides vertically along the fixed slide rod 44, driving the bonding roller 47 to press upward against the lower surface of the return section of the conveyor belt 5. When the conveyor belt 5 stretches due to long-term use or sags during operation, the support spring 46 automatically extends, pushing the bonding roller 47 upward to compensate for the displacement. This continuously maintains the conveyor belt 5 in a suitable tension state, reducing problems such as slippage, deviation, and abnormal noise caused by slackness of the conveyor belt 5. The probability is low; the fixed slide bar 44 provides vertical guidance for the limiting slide plate 45, ensuring that the bonding roller 47 moves only in the vertical direction, reducing the possibility of horizontal deviation; the automatic tensioning structure of the support spring 46 in conjunction with the limiting slide plate 45 and the bonding roller 47 can compensate for the stretching of the conveyor belt 5 in real time, maintain appropriate tension, and eliminate the need for manual periodic tension adjustment, reducing maintenance workload; the structure is simple and reliable, occupies little space, and is arranged at the bottom of the return section of the conveyor belt 5 without occupying the upper operating space; the rubber-coated bonding roller 47 can reduce wear on the inner side of the conveyor belt 5 and extend the service life of the conveyor belt.

[0021] Furthermore, such as Figure 2 As shown, both sides of the conveying frame 1 are fixedly connected to side slide rails 48, and a pair of side slide rails 48 are slidably connected to a closed cover 49. During operation, the side slide rails 48 are formed by bending industrial aluminum profiles or cold-rolled steel plates and are horizontally fixed to the top of both sides of the conveying frame 1 with bolts, arranged along the conveying direction. The bottom sides of the closed cover 49 are equipped with pulleys or sliders, which are embedded in the grooves of the side slide rails 48 for sliding cooperation. The closed cover 49 is formed by bending and splicing sheet metal, with a length covering all flattening and patting stations, and a height that provides sufficient space for component operation. The inlet and outlet ends of the closed cover 49 have clearance openings for the fabric to enter and exit, and soft curtains can be installed at the openings to further reduce airflow leakage. The side slide rails 48 provide sliding installation guides for the closed cover 49, and the closed cover 49 can be pushed and pulled horizontally along the side slide rails 48 to realize the opening and closing of the station. When the cover 49 is placed above the conveying station, it can enclose and flatten the airflow at the station, reducing the outward escape of high-pressure airflow, improving airflow utilization, and reducing the spillage of dust and filling particles during the flattening process, thus improving the workshop working environment. When maintenance, debugging, or fabric insertion is required, the cover 49 can be pulled open along the side slide rail 48 to expose the internal station, making operation convenient. The cover 49 mainly serves as a protective and airflow guiding function, without affecting the core function of pneumatic conveying. The side slide rail 48, in conjunction with the sliding cover 49, allows for convenient opening and closing, balancing protection during operation with operating space during maintenance. It can effectively reduce airflow spillage at the station, improve air source utilization, reduce the energy consumption of the fan 8, and block most of the dust and filling particles from flying, optimizing the workshop working environment. The structure is simple, and installation and maintenance are convenient, requiring no complex fixing structure.

[0022] Furthermore, such as Figure 1 As shown, the side wall of the enclosure 49 is provided with an observation window 50. During operation, rectangular openings are made at corresponding positions on the front and side walls of the enclosure 49, and transparent acrylic sheets or tempered glass are embedded as observation windows 50. The four sides are fixed and sealed with sealing strips and pressure strips. The size of the observation window 50 is set according to the observation range, with a width of not less than 300mm and a height covering the fabric conveying height to the top of the beater assembly to ensure sufficient field of vision. The surface of the transparent material is treated with anti-static agents to reduce dust adsorption and maintain clear observation. The observation window 50 is made of transparent material, so the operator does not need to open the enclosure during equipment operation. With the enclosure 49 closed, the conveying status, flattening effect, and patting operation of the internal fabric can be directly observed through the observation window 50. This allows for timely detection of problems such as fabric deviation, unflattened wrinkles, and abnormal patting, facilitating real-time monitoring of equipment operation and improving operational safety and troubleshooting efficiency. The internal operating status can be monitored in real-time through the observation window 50 without opening the enclosure 49, making operation convenient and reducing airflow leakage and dust diffusion caused by opening the enclosure 49. The multi-faceted arrangement of the observation windows 50 allows for multi-angle observation, reducing blind spots and facilitating timely detection of equipment malfunctions, thus improving production safety and maintenance efficiency.

[0023] Furthermore, such as Figure 1 As shown, fixed arms 51 are fixed to both sides of the top of the conveying frame 1. A pair of fixed arms 51 are positioned between the limiting post 16 and the fixing seat 27. The tops of the pair of fixed arms 51 are respectively connected to a pair of connecting expansion tubes 42. During operation, the bottom of the fixed arms 51 is vertically fixed to the top of the conveying frame 1 with bolts. The top is machined with a pipe clamp or clamp structure to tightly hold and fix the middle section of the connecting expansion tube 42. The height of the fixed arms 51 is customized according to the arrangement height of the connecting expansion tube 42 to ensure that the pipeline is horizontal and without bends. A rubber shock-absorbing pad is set between the pipe clamp and the connecting expansion tube 42 to buffer the running vibration and reduce pipeline wear and noise. The fixed arms 51 provide a middle support fixing point for the connecting expansion tube 42, sharing the load of the connecting expansion tube 42. The weight and vibration generated by airflow impact reduce the risk of pipe swaying and loosening of the interface in the connecting expansion pipe 42 due to long-term suspended operation; the fixed arm 3 51 is arranged between the limiting post 16 and the fixed seat 27, which can make reasonable use of the top space of the conveying frame 1, without interfering with the surrounding components, and at the same time ensures that the pipe routing of the connecting expansion pipe 42 is straight, reducing airflow pressure loss; the fixed arm 3 51 forms a stable central support for the connecting expansion pipe 42, improves the overall rigidity of the pipe, reduces pipe vibration caused by airflow pulsation, reduces the possibility of loosening of the interface and leakage, and extends the service life of the pipe; the support position is reasonably laid out, making full use of the top space of the equipment, without interfering with the surrounding moving parts, and at the same time ensuring smooth pipe routing and reducing airflow pressure loss.

[0024] Furthermore, such as Figure 6As shown, multiple sets of fixed square tubes 30 are fixedly connected to the outer walls of their outer walls with connecting rings 52. During operation, the connecting rings 52 are annular structures formed by bending round steel or steel plates. Mounting holes are opened at the positions corresponding to each set of fixed square tubes 30, and they are fixedly connected to the outer walls of the fixed square tubes 30 by welding or bolts. The connecting rings 52 are positioned in the middle section of the fixed square tubes 30, providing structural reinforcement for both the front and rear sections. The surface of the connecting rings 52 is treated with rust prevention, and the edges are polished smooth to avoid stress concentration. The connecting rings 52 are fixed around the middle section of the outer walls of the multiple sets of fixed square tubes 30, connecting the circumferentially arranged sets of fixed square tubes 30 into a single integrated structure, enhancing the overall structural rigidity of the striking assembly and reducing stress. The radial deformation and vibration of the fixed square tube 30 during high-speed rotation and beating improve the beating accuracy and structural service life. At the same time, the connecting ring 52 can serve as an auxiliary installation reference for the circumferential positioning and installation of the fixed square tube 30, ensuring the uniformity of the circumferential spacing of multiple sets of fixed square tubes 30. The annular connection structure of the connecting ring 52 enhances the overall rigidity of multiple sets of fixed square tubes 30, reduces structural deformation and vibration during high-speed beating, improves the consistency of beating force, and extends the service life of the beating assembly. It can also serve as an installation positioning reference, improving the circumferential installation accuracy of multiple sets of fixed square tubes 30, ensuring the uniformity of circumferential weight distribution, and reducing the rotational eccentric vibration of the connecting spindle 29.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A pneumatic conveying and flattening system for gravity blanket fabric, comprising a conveying frame (1), characterized in that: The bottom of the conveying frame (1) is fixed with multiple sets of fixed bottom arms (2). Both ends of the conveying frame (1) are rotatably connected with drive side rollers (3). Both ends of the conveying frame (1) are fixed with drive motors (4). The output ends of a pair of drive motors (4) are respectively connected to a pair of drive side rollers (3). A conveyor belt (5) is rotatably connected to the outer wall of the conveying frame (1). The two ends of the inner side wall of the conveyor belt (5) are in contact with the outer side walls of a pair of drive side rollers (3). An air chamber (6) is opened at the bottom of the inner side of the conveying frame (1). An exhaust plate (7) is connected to the top of the inner side of the air chamber (6). The top of the air chamber (6) is connected to the bottom of the exhaust plate (7). The conveying frame (1) Both ends are provided with fans (8), and both of the fans (8) are connected to the air chamber (6). The air chamber (6) is provided with guide ribs and pressure stabilizing chamber for uniformly distributing airflow. The exhaust holes on the exhaust plate (7) are distributed in an alternating array to ensure uniform air cushion pressure in the width direction of the conveyor belt (5). The top of the conveyor frame (1) is also provided with a flattening component, which is used to assist in the treatment of wrinkles that affect the material conveying. Both sides of the top of the conveyor frame (1) are provided with adjustment components, which are used to adjust the height of the flattening component. One side of the top of the conveyor frame (1) is provided with a beating component, which is used to beat apart the clumps of material in the gravity blanket fabric.

2. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 1, characterized in that: An impact unit is provided on the outside of the slapping assembly, which is used for airflow-assisted slapping work; the flattening assembly includes a pair of connecting ventilation pipes (9), both of which are fixedly installed on both sides of the conveying frame (1), and one end of each pair of connecting ventilation pipes (9) is connected to the air chamber (6), the top of each pair of connecting ventilation pipes (9) is rotatably connected to a lightweight rotating cylinder (10), the top of each pair of connecting ventilation pipes (9) is fixedly connected to a connecting air pipe (11), and the bottom of each pair of connecting air pipes (11) is connected to the lightweight rotating cylinder. (10) The top is a rotating connection. A pair of connecting air ducts (11) are connected to each other at one end with an elastic corrugated pipe (12). A pair of elastic corrugated pipes (12) are fixed to the bottom of a gas collecting square pipe (13). Multiple sets of exhaust grooves (14) are opened on one side of the bottom of the multiple sets of gas collecting square pipes (13). A fixed plate (15) is fixed to the top of a pair of gas collecting square pipes (13). A limit post (16) is slidably connected to the inner side of a pair of fixed plates (15). The bottom of a pair of limit posts (16) is connected to the top two sides of the conveying frame (1).

3. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 2, characterized in that: The adjustment assembly includes a pair of connecting rotating columns (17), both of which are rotatably mounted on the top sides of the conveying frame (1). A connecting gear disc (18) is fixedly connected to the top of each of the connecting rotating columns (17), and a connecting operating rod (19) is fixedly connected to the top of each of the connecting gear discs (18). A connecting gear cylinder (20) is rotatably connected to one side of the top of each of the connecting rotating columns (17), and a threaded adjusting rod (21) is threadedly connected to the inner side of each of the connecting gear cylinders (20). The bottom end of the threaded adjusting rod (21) is connected to the top of the gas collecting square tube (13). Both sides of the top of the conveying frame (1) are fixedly connected to the support arm (22). The top of each pair of support arms (22) is rotatably connected to the synchronous cone column (23). The top of each pair of connecting tooth cylinders (20) is fixedly connected to the conical tooth cylinder (24). The conical tooth cylinder (24) is sleeved on the outside of the threaded adjusting rod (21). The two ends of the synchronous cone column (23) are respectively meshed with the top of the pair of conical tooth cylinders (24).

4. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 2, characterized in that: The tapping assembly includes a pair of fixed arms (25), each of which is rotatably connected to a bevel gear column (26). The ends of the bevel gear columns (26) near the limiting column (16) are meshed with the top of a pair of lightweight rotating drums (10). The top two sides of the conveying frame (1) are fixedly connected to fixed seats (27). The inner sides of the fixed seats (27) are rotatably connected to bevel gears (28). The ends of the bevel gears (28) near each other are meshed with the ends of the bevel gear columns (26) away from the lightweight rotating drums (10). The ends of the bevel gears (28) near each other are fixedly connected to a connecting main shaft (29). The outer side of the middle section of the connecting main shaft (29) is fixedly connected to multiple sets of fixed square tubes (30). The outer sides of the multiple sets of fixed square tubes (30) are slidably connected to exhaust square tubes (31). The inner sides of the lightweight rotating drums (10) are fixedly connected to lightweight fan blades (43).

5. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 4, characterized in that: The impact unit includes multiple sets of exhaust grooves (32), each set of exhaust grooves (32) being located at the ends of multiple sets of exhaust square tubes (31). Exhaust cylinders (39) are fixedly connected to both sides of the middle of the connecting main shaft (29). A transmission gear plate (33) is rotatably connected to the ends of each pair of exhaust cylinders (39) that are far apart from each other. Multiple sets of fixed side plates (34) are fixedly connected to the ends of each pair of exhaust cylinders (39) that are far apart from each other. The fixed side plates (34) are fixedly connected to the transmission gear plate (33) via bolt and nut assemblies. Threaded columns (36) are fixedly connected to both ends of the multiple sets of exhaust square tubes (31). Conical gear cylinders (37) are rotatably connected to both ends of the multiple sets of fixed square tubes (30). The bevel cylinder (37) and the threaded column (36) are threadedly connected. A connecting expansion pipe (42) is connected to the top side of a pair of connecting air ducts (11). A gas collecting cylinder (38) is connected to the bottom end of a pair of connecting expansion pipes (42). A pair of gas collecting cylinders (38) are sleeved on the outside of the connecting main shaft (29). The gas collecting cylinder (38) and the exhaust cylinder (39) are connected to each other. A connecting groove (40) is opened at the top of a pair of exhaust cylinders (39). An exhaust groove (41) is opened on the inner side of multiple sets of fixed square tubes (30) and exhaust square tubes (31). The exhaust groove (41) is connected to multiple sets of exhaust grooves (32).

6. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 1, characterized in that: The conveying frame (1) has a pair of fixed slide rods (44) fixed on both sides of the bottom. The inner side of each pair of fixed slide rods (44) is fitted with a limiting slide plate (45). The top of each pair of limiting slide plates (45) is fixed with a support spring (46). The support spring (46) is fitted in the middle of the fixed slide rod (44). The top side of each pair of limiting slide plates (45) is rotatably connected with a bonding roller (47). The outer side wall of the pair of bonding rollers (47) is in contact with the bottom of the conveyor belt (5).

7. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 1, characterized in that: The conveying frame (1) is fixedly connected to side slide rails (48) on both sides, and a pair of side slide rails (48) are slidably connected to a closed cover (49).

8. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 7, characterized in that: The side wall of the enclosure (49) is provided with an observation window (50).

9. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 5, characterized in that: The top two sides of the conveying frame (1) are fixed with three fixed arms (51). A pair of fixed arms (51) are set between the limiting post (16) and the fixed seat (27). The top of the pair of fixed arms (51) is connected to a pair of connecting expansion tubes (42).

10. The pneumatic conveying and flattening system for gravity blanket fabric as described in claim 4, characterized in that: The outer wall of the multiple sets of fixed square tubes (30) is fixed with connecting rings (52).

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