Automatic production equipment and production method of regenerated polyester staple fiber from waste textiles

Abstract

This invention discloses an automated production equipment and method for recycling polyester staple fiber from waste textiles, relating to the field of waste textile recycling technology. The invention includes an opening machine, the output end of which is connected to a screw extruder via a pipe. A feeding frame is fixedly connected to the top of the opening machine, and a feeding mechanism, a crushing mechanism, and a striking mechanism are all installed on the feeding frame. The feeding mechanism includes a first motor fixedly connected to the outer wall of the feeding frame, and the output shaft of the first motor is fixedly connected to a first conveying roller via a coupling. This invention achieves anti-winding of long strip materials by setting a spiral groove inside the first conveying roller and spiral protrusions on the outer wall of the second conveying roller. Even if winding occurs, there is no need to stop the machine; instead, the first motor rotates the groove to the bottom, and then a third motor drives the saw teeth to move along the groove, automatically cutting the winding material.

Description

Technical Field

[0001] This invention belongs to the field of waste textile recycling technology, and in particular relates to an automated production equipment and method for recycling polyester staple fiber from waste textiles. Background Technology

[0002] Waste textiles contain a large amount of polyester fiber. These waste textiles mainly come from waste clothing, home textiles, and industrial waste fabrics. Polyester is a thermoplastic synthetic fiber with advantages such as high strength, wear resistance, and chemical corrosion resistance. However, its natural degradation is extremely difficult. If it is disposed of by landfill or incineration, it will not only occupy land resources but also produce harmful gases such as carbon dioxide and dioxins. Recycling and regenerating polyester fibers from waste textiles through physical or chemical methods is an important way to realize the resource utilization of waste textiles.

[0003] Patent CN120243207A discloses a crushing device for recycling waste fabric, including a feeding ring, a cutting ring, an extrusion plate, a sliding plate, and a cutting blade. The feeding ring is rotatably disposed at the bottom of the mounting cavity, and the cutting ring is rotatably disposed at the top of the mounting cavity. A gap is formed between the feeding ring and the cutting ring for the fabric to pass through. The sliding plate is elastically mounted on the side wall of the mounting cavity in the left-right direction. The sliding plate and the extrusion plate are respectively provided with cutting slits. The feeding ring, the cutting ring, the extrusion plate, the sliding plate, and the mounting cavity together form a receiving cavity. When the cutting ring rotates, the cutting blade passes through the cutting slits to cut the extruded fabric in the receiving cavity.

[0004] As shown above, the device places the fabric to be cut onto the protruding section of the feeding ring. It is fed into the cutting area by the rotation of the feeding ring and the pushing of the blades on the cutting ring. It is suitable for processing blocky waste fabrics, but it is not suitable for processing thin sheet fabrics. The reason is that its structure is specifically designed for blocky materials. The device forms a receiving cavity through the feeding ring and the cutting ring. It uses the extrusion plate to compress and clamp the thick material before cutting. This mechanism relies on the thickness and volume of the material to establish an effective clamping force. Thin sheet fabrics are very thin and cannot be fully compressed by the extrusion plate and the sliding plate after entering the receiving cavity. They are prone to displacement or slippage during cutting, resulting in incomplete cuts and incomplete cutting. Existing technology uses feeding rollers to convey thin sheets of fabric. However, waste textiles often contain long strips of material. When these long strips of material pass through the feeding rollers, one end is easily caught in the roller gap, while the other end remains attached to the outside of the roller surface. As the rollers rotate, the material gradually wraps around the roller surface. The entanglement becomes thicker and thicker, causing the feeding rollers to be unable to properly clamp the material, or even causing the rollers to jam. At this point, the operator needs to stop the machine and manually clean the material wrapped around the roller surface using a hook knife or scissors. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automated production equipment and method for recycling polyester staple fibers from waste textiles, thus solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: an automated production equipment and method for recycled polyester staple fiber from waste textiles, including an opening machine, the output end of which is connected to a screw extruder via a pipe, a feeding frame fixedly connected to the top of the opening machine, a feeding mechanism inside the feeding frame, a crushing mechanism on the feeding frame, and a knocking mechanism on the feeding frame. The feeding mechanism includes a first motor fixedly connected to the outer wall of the feed frame. The output shaft of the first motor is fixedly connected to a first conveying roller via a coupling. A first gear is fixedly connected to the outer wall of the first conveying roller via a connecting shaft. A second gear meshes with the outer wall of the first gear. A second conveying roller is fixedly connected to the outer wall of the second gear via a second connecting shaft. Grooves are provided inside both the first and second conveying rollers. A second motor is fixedly connected to the outer wall of the feed frame. A lead screw is fixedly connected to the output shaft of the second motor via a coupling. A cutting assembly is threaded onto the outer wall of the lead screw.

[0007] Preferably, the cutting assembly includes a movable block threaded to the outer wall of the lead screw, a third motor fixedly connected inside the movable block, and a rotating rod driven by the output shaft of the third motor through a coupling and a pulley. Two saw teeth are fixedly connected to the outer wall of the rotating rod, and the two saw teeth are adapted to the groove.

[0008] Preferably, the crushing mechanism includes a first belt connected to the outer shaft of the first conveying roller via a pulley drive, the other end of the first belt being connected to a first rotating shaft via a pulley drive, a third gear being fixedly connected to the outer wall of the first rotating shaft, a fourth gear meshing with the outer wall of the third gear, and a second rotating shaft being fixedly connected to the outer wall of the fourth gear.

[0009] Preferably, both the second and first rotating shafts are rotatably connected to the inner wall of the feed frame, and both the second and first rotating shafts are fixedly connected to the outer walls of the feed frame. The crushing rollers are located inside the feed frame. A screen plate is fixedly connected to the inner wall of the feed frame, and a moving plate is slidably connected to the inner wall of the feed frame. The moving plate is threadedly connected to an external electric screw and is located above the screen plate. An electric push rod is fixedly connected to the inner wall of the moving plate, and a push plate is fixedly connected to the bottom of the electric push rod. A second belt is connected to the outer wall of the second rotating shaft via a pulley drive.

[0010] Preferably, the end of the second belt away from the second rotating shaft is connected to the first rotating shaft via a pulley drive. The other side of the first rotating shaft is fixedly connected to the first bevel gear. The outer wall of the first bevel gear meshes with the second bevel gear. The outer wall of the second bevel gear is fixedly connected to the second rotating shaft. The bottom of the second rotating shaft is fixedly connected to the disc. The bottom of the disc is fixedly connected to the eccentric shaft. The outer wall of the eccentric shaft is slidably connected to the limit frame. The two sides of the limit frame are fixedly connected to the connecting rods.

[0011] Preferably, the outer wall of the connecting rod is slidably connected to the inner wall of the feed frame, and a push block is fixedly connected to each side of the connecting rod that is close to each other. A first conveying screw is fixedly connected to the top of the second rotating shaft. A housing is sleeved on the outer wall of the first conveying screw. The outer wall of the housing is fixedly connected to the outer wall of the feed frame. A fourth motor is fixedly connected to the outer wall of the housing. The output shaft of the fourth motor is fixedly connected to the second conveying screw through a coupling.

[0012] Preferably, the striking mechanism includes a third belt connected to the outer wall of the first rotating shaft via a pulley drive. The end of the third belt away from the first rotating shaft is connected to the third rotating shaft via a pulley drive. A third bevel gear is fixedly connected to the outer wall of the third rotating shaft. A fourth bevel gear meshes with the outer wall of the third bevel gear. A fourth rotating rod is fixedly connected to the bottom of the fourth bevel gear.

[0013] Preferably, a fixing block is fixedly connected to the bottom of the fourth rotating rod, and the bottom of the fixing block is rotatably connected to the inner wall of the feed frame via a rotating shaft. A telescopic rod is fixedly connected to one side of the fixing block, and an impact block is fixedly connected to the outer wall of the telescopic rod. A spring is fixedly connected to the side of the impact block near the telescopic rod, and the telescopic rod is located inside the spring.

[0014] This invention also discloses a production method for an automated production equipment for recycled polyester staple fiber from waste textiles, specifically including the following steps: S1. Start the first motor through the external controller to drive the first conveyor roller to rotate. While the first conveyor roller is rotating, it drives the first gear to rotate through the external rotating rod, thereby causing the second gear to rotate in the opposite direction to the first gear. S2. When the second gear rotates, it will drive the second conveyor roller to rotate. At this time, the second conveyor roller rotates synchronously with the first conveyor roller but in opposite directions, causing the material located in the area between the first and second conveyor rollers to fall. S3. The outer wall of the second conveying roller is provided with spiral protrusions, and the inside of the first conveying roller is provided with spiral grooves. The spiral protrusions push the material to both ends, and the spiral grooves provide temporary accommodation space for the material, reducing the contact area between the material and the roller surface, which aims to reduce material entanglement.

[0015] Preferably, the outer walls of the first conveying roller in S1 and the second conveying roller in S2 are provided with an axially penetrating groove so that the cutting assembly can pass through and cut the fiber material wrapped on the first and second conveying rollers.

[0016] The present invention has the following beneficial effects: 1. This automated production equipment and method for recycled polyester staple fiber from waste textiles effectively prevents long strips of material from tangling by setting spiral grooves inside the first conveyor roller and spiral protrusions on the outer wall of the second conveyor roller. When the material enters between the two rollers, the spiral protrusions push the material to both ends, preventing the material from accumulating in the middle of the rollers. At the same time, the spiral grooves provide temporary space for the material, reducing the contact area between the material and the roller surface and lowering the probability of tangling. Even if tangling occurs, there is no need for manual shutdown. Instead, the first motor rotates the grooves to the bottom, and then the third motor drives the saw teeth to move along the grooves to automatically cut and remove the tangled material. This reduces downtime, eliminates the safety hazards of operators approaching rotating parts, and achieves online automatic cleaning of the feeding rollers.

[0017] 2. This automated production equipment and method for recycled polyester staple fiber from waste textiles utilizes a purely mechanical transmission structure, including a third belt, bevel gear set, eccentric shaft, and limit frame, to achieve intermittent shaking of the screen plate and automatic return of unqualified materials. The second rotating shaft drives the first rotating shaft via the second belt, which in turn drives the fourth rotating rod to rotate via the third belt and bevel gear set. This causes the fixed block and impact block to intermittently impact the screen plate. While impacting the screen plate, the impact block compresses the spring and telescopic rod. When it leaves the contact area, the spring releases its elastic force and impacts the screen plate again, creating periodic shaking. This allows materials that meet the size requirements to pass through the screen plate smoothly, while materials that are too large are intercepted. Subsequently, the moving plate moves under the drive of the threaded rod, and the electric push rod drives the push plate to push the large-sized materials on the screen plate into the first conveying screw. Then, the second conveying screw sends them back to the crushing roller for re-crushing. This achieves automatic identification, return, and re-crushing of unqualified materials without manual intervention, ensuring the uniformity of the crushed particle size.

[0018] 3. This automated production equipment and method for recycled polyester staple fiber from waste textiles achieves mechanical linkage of multiple processes such as feeding, crushing, screening, and return conveying through a composite transmission of gear sets, pulleys, and bevel gear sets. It eliminates the need for multiple independent controllers and sensors. While the first motor drives the feeding roller, it drives the crushing roller to rotate via the first belt. Simultaneously, the crushing roller rotates, and the second belt, third belt, and bevel gear set synchronously drive the screen plate shaking mechanism and the return conveying screw. The entire transmission chain relies solely on mechanical connections. The start and stop, speed ratio, and directional relationship of each process are naturally determined by the transmission ratio. There is no time delay or logical conflict in electrical control, which reduces the complexity and failure rate of the control system, reduces the number of electrical components, and lowers the equipment cost and maintenance cost. It is particularly suitable for waste textile recycling workshops with harsh working conditions and high dust levels.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the feed frame structure of the present invention; Figure 3 This is a schematic diagram of the lead screw structure of the present invention; Figure 4 This is a schematic diagram of the sawtooth structure of the present invention; Figure 5 This is a schematic diagram of the second conveying roller structure of the present invention; Figure 6 This is a schematic diagram of the fourth gear structure of the present invention; Figure 7 This is a schematic diagram of the first conveying screw structure of the present invention; Figure 8 This is a schematic diagram of the push block structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle; Figure 10 For the present invention Figure 7 Enlarged structural diagram at point B.

[0022] The attached diagram lists the components represented by each number as follows: 1. Opening machine; 101. Screw extruder; 102. Feed frame; 2. Feeding mechanism; 201. First motor; 202. First conveyor roller; 203. First gear; 204. Second gear; 205. Second conveyor roller; 206. Second motor; 207. Lead screw; 208. Moving block; 209. Third motor; 210. Rotating rod; 211. Saw tooth; 213. Groove; 3. Crushing mechanism; 301. First belt; 302. First rotating shaft; 303. Third gear; 304. Fourth gear; 305. Second rotating shaft; 306. Screen plate; 307. Moving plate; 308. Electric push rod; 30 9. Push plate; 310. Second belt; 311. First rotating shaft; 312. First bevel gear; 313. Second bevel gear; 314. Second rotating shaft; 315. Disc; 316. Eccentric shaft; 317. Limiting frame; 318. Push block; 319. First conveying screw; 320. Housing; 321. Fourth motor; 322. Second conveying screw; 4. Striking mechanism; 401. Third belt; 402. Third rotating shaft; 403. Third bevel gear; 404. Fourth bevel gear; 405. Fourth rotating rod; 406. Fixing block; 407. Telescopic rod; 408. Impact block; 409. Spring. Detailed Implementation

[0023] 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.

[0024] This invention discloses an automated production equipment for recycled polyester staple fiber from waste textiles, and provides the following three technical solutions: Figures 1-10 The first embodiment is shown: an automated production equipment for recycled polyester staple fiber from waste textiles, including an opening machine 1, the output end of the opening machine 1 is connected to a screw extruder 101 through a pipe, a feed frame 102 is fixedly connected to the top of the opening machine 1, a feeding mechanism 2 is provided inside the feed frame 102, a crushing mechanism 3 is provided on the feed frame 102, and a knocking mechanism 4 is provided on the feed frame 102; The feeding mechanism 2 includes a first motor 201 fixedly connected to the outer wall of the feed frame 102. The first motor 201 is a servo motor, and its output shaft is horizontally arranged towards the inside of the feed frame 102. The output shaft of the first motor 201 is fixedly connected to a first conveying roller 202 via a coupling. The first conveying roller 202 is a hollow steel roller body, and its two ends are rotatably connected to the two side walls of the feed frame 102 via bearings. The outer surface of the roller body is provided with an axially penetrating groove 213. The surface of the first conveying roller 202 is provided with a spiral groove. The outer wall of the first conveying roller 202 is fixedly connected to a first gear 203 via a connecting shaft. The first gear 203 is a spur gear. A second gear 204 meshes with the outer wall of the first gear 203. The second gear 204 has the same module and the same number of teeth as the first gear 203, realizing constant speed reverse transmission. The outer wall of the second gear 204 is fixedly connected to the second conveying roller 205 via the second connecting shaft. The second conveying roller 205 is arranged parallel to the first conveying roller 202 and its axis is located in the same horizontal plane. A clamping gap of 1-3mm is left between the two rollers. The outer wall of the second conveying roller 205 is also machined with a groove 213 corresponding to the first conveying roller 202, and the outer surface is provided with a spiral convex strip. The first conveying roller 202 and the second conveying roller 205 are both provided with grooves 213. The grooves 213 penetrate the entire roller surface along the roller body axis, which facilitates the movement of the subsequent cutting component along the groove. The outer wall of the feed frame 102 is fixedly connected to the second motor 206. The second motor 206 is a stepper motor. The output shaft of the second motor 206 is fixedly connected to the lead screw 207 via a coupling. The outer wall of the lead screw 207 is threadedly connected to the cutting component.

[0025] The cutting assembly includes a movable block 208 threaded onto the outer wall of the lead screw 207. A third motor 209 is fixedly connected inside the movable block 208. The third motor 209 is a miniature DC geared motor with a power of 50-100W and a rated speed of 3000-5000 r / min. The output shaft of the third motor 209 is connected to a rotating rod 210 via a coupling and a pulley. Two saw teeth 211 are fixedly connected to the outer wall of the rotating rod 210. The saw teeth 211 are disc-shaped saw blades with a diameter of 30-50mm and a thickness of 2-3mm, made of high-speed steel. The two saw teeth 211 are adapted to a groove 213; specifically, the outer diameter of the saw teeth 211 is smaller than that of the groove 213. The width of the saw teeth 211 is 2-4mm, and the thickness of the saw teeth 211 is 1-2mm less than the depth of the groove 213. When the moving block 208 moves to the working position, the two saw teeth 211 extend into the grooves 213 on the first conveying roller 202 and the second conveying roller 205 respectively. The saw teeth 211 and the bottom and wall of the groove 213 maintain a gap of 0.5-1mm to ensure that the saw teeth 211 will not collide with the roller body when rotating. At the same time, it can effectively cut the fiber material wrapped in the groove 213. When the screw 207 drives the moving block 208 to move axially, the saw teeth 211 slide along the groove 213 throughout the entire process to perform a complete longitudinal cut on the wrapped material.

[0026] Figures 1-10 The second embodiment is shown, and its main difference from the first embodiment is that the crushing mechanism 3 includes a first belt 301 connected to the outer shaft of the first conveying roller 202 via a pulley drive. The first belt 301 is a synchronous toothed belt with trapezoidal teeth distributed on its inner circumference, which meshes with the synchronous pulley installed at the shaft end of the first conveying roller 202 to prevent slippage. The other end of the first belt 301 is connected to a first rotating shaft 302 via a pulley drive. A third gear 303 is fixedly connected to the outer wall of the first rotating shaft 302. The outer wall of the third gear 303 is meshed with a fourth gear 304. The fourth gear 304 has the same module and the same number of teeth as the third gear 303. The outer wall of the fourth gear 304 is fixedly connected to a second rotating shaft 305. The second rotating shaft 305 is parallel to the first rotating shaft 302 and located at the same horizontal height. Both rotating shafts are fixedly installed with crushing rollers by flat keys. The surface of the crushing rollers is distributed with staggered sharp teeth or blades, with a tooth height of 10-15mm and a tooth pitch of 20-30mm. The teeth on adjacent crushing rollers are staggered but do not contact each other, forming a shearing gap.

[0027] Both the second rotating shaft 305 and the first rotating shaft 302 are rotatably connected to the inner wall of the feed frame 102. Bearing seats are pre-embedded on both side walls of the feed frame 102, and double-row self-aligning roller bearings are installed inside the bearing seats. The two ends of the first rotating shaft 302 and the second rotating shaft 305 are respectively inserted into the inner rings of the corresponding bearings. The shaft ends are sealed with end caps and sealing rings to prevent dust from entering. Crushing rollers are fixedly connected to the outer walls of both the second rotating shaft 305 and the first rotating shaft 302. The crushing rollers are located inside the feed frame 102, and their length matches the internal width of the feed frame 102. The crushing rollers are directly above the discharge gap between the first conveying roller 202 and the second conveying roller 205, ensuring that the material conveyed by the feeding roller falls directly into the two crushing rollers. In the shearing zone between the feed frame 102, a screen plate 306 is fixedly connected to the inner wall of the feed frame 102, and a movable plate 307 is slidably connected to the inner wall of the feed frame 102. The movable plate 307 is threadedly connected to an external electric screw. The electric screw includes a screw body and a drive motor. The screw body is arranged horizontally along the left and right direction of the feed frame 102 and passes through the threaded hole of the movable plate 307. The movable plate 307 is located above the screen plate 306. An electric push rod 308 is fixedly connected to the inner wall of the movable plate 307. A push plate 309 is fixedly connected to the bottom of the electric push rod 308. The push plate 309 is a wear-resistant rubber plate or a stainless steel plate with the same width as the movable plate 307. A second belt 310 is connected to the outer wall of the second rotating shaft 305 through a pulley drive.

[0028] The end of the second belt 310 away from the second rotating shaft 305 is connected to the first rotating shaft 311 via a pulley. The other side of the first rotating shaft 311 is fixedly connected to the first bevel gear 312. The outer wall of the first bevel gear 312 meshes with the second bevel gear 313. The second bevel gear 313 has the same module and the same number of teeth as the first bevel gear 312. Its axis is perpendicular to the axis of the first rotating shaft 311, that is, it is arranged in a vertical direction to realize the change from horizontal transmission to vertical transmission. The outer wall of the second bevel gear 313 is fixedly connected to the second rotating shaft 314. The bottom of the second rotating shaft 314 is fixedly connected to the disc 315. The disc 315 is a circular steel plate. Its center is connected to the lower end of the second rotating shaft 314 by a key. The bottom of the disc 315 is fixedly connected to the eccentric shaft 316. The eccentric shaft 316 is a short cylinder. The outer wall of the eccentric shaft 316 is slidably connected to the limit frame 317. The two sides of the limit frame 317 are fixedly connected to the connecting rods.

[0029] The outer wall of the connecting rod is slidably connected to the inner wall of the feed frame 102. The side wall of the feed frame 102 is provided with a through hole that matches the cross-sectional shape of the connecting rod. A copper-based self-lubricating bushing is embedded in the through hole. Pushing blocks 318 are fixedly connected to the sides of the connecting rods that are close to each other. The side of the pushing block facing the first conveying screw 319 is machined with an arc surface. The top of the second rotating shaft 314 is fixedly connected to the first conveying screw 319. The first conveying screw 319 is the screw part of the screw conveyor. Its lower end is coaxially connected to the upper end of the second rotating shaft 314 through a coupling. The surface of the blade is overlaid with a wear-resistant alloy layer. The outer wall of the first conveying screw 319 is fitted with a housing 320. The outer wall of the housing 320 is fixedly connected to the outer wall of the feed frame 102. The outer wall of the housing 320 is fixedly connected to the fourth motor 321. The fourth motor 321 is a common three-phase asynchronous motor. The output shaft of the fourth motor 321 is fixedly connected to the second conveying screw 322 through a coupling.

[0030] Figures 1-10 The third embodiment is shown. The main difference between this embodiment and the first two embodiments is that the striking mechanism 4 includes a third belt 401 connected to the outer wall of the first rotating shaft 311 via a pulley drive. The end of the third belt 401 away from the first rotating shaft 311 is connected to a third rotating shaft 402 via a pulley drive. The third rotating shaft 402 is a solid steel shaft. A third bevel gear 403 is fixedly connected to the outer wall of the third rotating shaft 402. A fourth bevel gear 404 meshes with the outer wall of the third bevel gear 403. The fourth bevel gear 404 has the same module and the same number of teeth as the third bevel gear 403. Its axis is perpendicular to the axis of the third rotating shaft 402, that is, it is arranged vertically downward. A fourth rotating rod 405 is fixedly connected to the bottom of the fourth bevel gear 404.

[0031] A fixing block 406 is fixedly connected to the bottom of the fourth rotating rod 405. The fixing block 406 is a square steel block with a thickness of 15-25mm and a shaft hole machined in its center. It is fixedly connected to the lower end of the fourth rotating rod 405 by interference fit. The bottom of the fixing block 406 is rotatably connected to the inner wall of the feed frame 102 through a rotating shaft. A telescopic rod 407 is fixedly connected to one side of the fixing block 406. An impact block 408 is fixedly connected to the outer wall of the telescopic rod 407. The impact block 408 is a hammer head made of high manganese steel or other materials. It is semi-circular and has an arc surface machined on the side facing the screen plate 306 to increase the contact area. A spring 409 is fixedly connected to the side of the impact block 408 near the telescopic rod 407. The telescopic rod 407 is located inside the spring 409. Both the outer tube and the inner rod of the telescopic rod 407 pass through the central hole of the spring 409. The spring 409 is sleeved on the outside of the telescopic rod 407, which serves to guide and prevent the spring 409 from becoming unstable. When the fixed block 406 is driven to swing by the fourth rotating rod 405, the telescopic rod 407 and the impact block 408 move together with the fixed block 406. The impact block 408 periodically impacts the lower surface of the screen plate 306, causing the screen plate 306 to vibrate. The spring 409 is compressed after being impacted by the impact block 408. When the fixed block 406 swings in the opposite direction, the spring 409 releases energy to push the impact block 408 to impact again, forming a continuous knocking effect.

[0032] This invention also discloses a production method for an automated production equipment for recycled polyester staple fiber from waste textiles, specifically including the following steps: Material is fed between the first conveyor roller 202 and the second conveyor roller 205. Then, the first motor 201 is started via an external controller, driving the first conveyor roller 202 to rotate. As the first conveyor roller 202 rotates, it drives the first gear 203 to rotate, which in turn drives the second gear 204 to rotate. When the second gear 204 rotates, it drives the second conveyor roller 205 to rotate in the opposite direction to the first conveyor roller 202, thus conveying the material into the device. The outer wall of the second conveyor roller 205 is provided with spiral protrusions, and the interior of the first conveyor roller 202 is provided with spiral grooves to reduce material entanglement. When material entangles between the second conveyor roller 205 and the first conveyor roller 202, the first motor 201 simply... The grooves 213 on the second conveyor roller 205 and the first conveyor roller 202 rotate to face downwards. Then, the third motor 209 is started by the external controller, driving the rotating rod 210 to rotate. As the rotating rod 210 rotates, it drives the saw teeth 211 to rotate. At this time, the second motor 206 is started, driving the lead screw 207 to rotate, thereby causing the moving block 208 to move as a whole. This causes the saw teeth 211 to move along the grooves 213, cutting the fabric wrapped around the second conveyor roller 205 and the first conveyor roller 202. When the conveyed fabric falls into the two crushing rollers, as the first conveyor roller 202 rotates, the rotating rod outside the first conveyor roller 202 drives the first belt 301 to move, thereby driving the first rotating shaft 3. The first rotating shaft 302 rotates, which in turn drives the third gear 303 to rotate, thereby causing the fourth gear 304 to rotate in the opposite direction to the third gear 303. This, in turn, drives the two crushing rollers to rotate, crushing the fabric. The crushed fabric falls onto the screen plate 306. At this time, the second rotating shaft 305 drives the first rotating shaft 311 to rotate via the second belt 310. The first rotating shaft 311 then drives the third rotating shaft 402 to rotate via the third belt 401. When the third rotating shaft 402 rotates, it drives the third bevel gear 403 to rotate, which in turn drives the fourth bevel gear 404 to rotate. When the fourth bevel gear 404 rotates, it drives the fourth rotating rod 405 to rotate. This rotation causes the fixed block 406 to rotate. As the fixed block 406 rotates, it causes the impact block 408 to intermittently impact the screen plate 306. During this impact, the impact block 408 compresses the spring 409 and the telescopic rod 407. When the contact is released, the spring 409 compresses the impact block 408, causing it to move and impact the screen plate 306, thus shaking the screen plate 306. This allows suitable materials to pass through the screen plate 306, while oversized materials remain above it. At this point, the external threaded rod drives the moving plate 307 to move, and the electric push rod 308 is activated, causing the push plate 309 to contact the surface of the screen plate 306, thereby pushing the material into the first conveying screw 319.While the first rotating shaft 311 rotates, it drives the first bevel gear 312 to rotate, which in turn drives the second bevel gear 313 to rotate. When the second bevel gear 313 rotates, it drives the second rotating shaft 314 to rotate, which in turn drives the disc 315 to rotate. When the disc 315 rotates, it drives the eccentric shaft 316 to rotate around the center of the disc 315, causing the limiting frame 317 to perform a cyclical linear motion. This, in turn, drives the two pushing blocks 318 to cyclically push material into the first conveying screw 319. Simultaneously, the second rotating shaft 314 rotates, driving the first conveying screw 319 to rotate, conveying the material upwards. Upon reaching the upper level, the material is then conveyed back above the two crushing rollers by the second conveying screw 322 driven by the fourth motor 321 for re-crushing.

[0033] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated production equipment for recycled polyester staple fiber from waste textiles, comprising an opening machine (1), wherein the output end of the opening machine (1) is connected to a screw extruder (101) via a pipe, characterized in that, The top of the loosening machine (1) is fixedly connected to a feeding frame (102), a feeding mechanism (2) is provided inside the feeding frame (102), a crushing mechanism (3) is provided on the feeding frame (102), and a knocking mechanism (4) is provided on the feeding frame (102). The feeding mechanism (2) includes a first motor (201) fixedly connected to the outer wall of the feed frame (102). The output shaft of the first motor (201) is fixedly connected to a first conveying roller (202) via a coupling. The outer wall of the first conveying roller (202) is fixedly connected to a first gear (203) via a connecting shaft. The outer wall of the first gear (203) meshes with a second gear (204). The outer wall of the second gear (204) is fixedly connected to a second conveying roller (205) via a second connecting shaft. The first conveying roller (202) and the second conveying roller (205) are both provided with grooves (213). The outer wall of the feed frame (102) is fixedly connected to a second motor (206). The output shaft of the second motor (206) is fixedly connected to a lead screw (207) via a coupling. The outer wall of the lead screw (207) is threaded with a cutting component.

2. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 1, characterized in that, The cutting assembly includes a movable block (208) threaded to the outer wall of the lead screw (207). A third motor (209) is fixedly connected inside the movable block (208). The output shaft of the third motor (209) is connected to a rotating rod (210) via a coupling and a pulley. Two saw teeth (211) are fixedly connected to the outer wall of the rotating rod (210). The two saw teeth (211) are adapted to the groove (213).

3. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 1, characterized in that, The crushing mechanism (3) includes a first belt (301) connected to the outer shaft of the first conveying roller (202) via a pulley drive. The other end of the first belt (301) is connected to a first rotating shaft (302) via a pulley drive. A third gear (303) is fixedly connected to the outer wall of the first rotating shaft (302). A fourth gear (304) meshes with the outer wall of the third gear (303). A second rotating shaft (305) is fixedly connected to the outer wall of the fourth gear (304).

4. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 3, characterized in that, The second rotating shaft (305) and the first rotating shaft (302) are rotatably connected to the inner wall of the feed frame (102). The outer walls of the second rotating shaft (305) and the first rotating shaft (302) are fixedly connected to crushing rollers. The crushing rollers are located inside the feed frame (102). The inner wall of the feed frame (102) is fixedly connected to a screen plate (306). The inner wall of the feed frame (102) is slidably connected to a moving plate (307). The moving plate (307) is threadedly connected to an external electric screw. The moving plate (307) is located above the screen plate (306). The inner wall of the moving plate (307) is fixedly connected to an electric push rod (308). The bottom of the electric push rod (308) is fixedly connected to a push plate (309). The outer wall of the second rotating shaft (305) is connected to a second belt (310) via a pulley drive.

5. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 4, characterized in that, The end of the second belt (310) away from the second rotating shaft (305) is connected to the first rotating shaft (311) via a pulley drive. The other side of the first rotating shaft (311) is fixedly connected to the first bevel gear (312). The outer wall of the first bevel gear (312) meshes with the second bevel gear (313). The outer wall of the second bevel gear (313) is fixedly connected to the second rotating shaft (314). The bottom of the second rotating shaft (314) is fixedly connected to the disc (315). The bottom of the disc (315) is fixedly connected to the eccentric shaft (316). The outer wall of the eccentric shaft (316) is slidably connected to the limit frame (317). The two sides of the limit frame (317) are fixedly connected to the connecting rods.

6. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 5, characterized in that, The outer wall of the connecting rod is slidably connected to the inner wall of the feed frame (102). Push blocks (318) are fixedly connected to the sides of the connecting rods that are close to each other. The top of the second rotating shaft (314) is fixedly connected to the first conveying screw (319). The outer wall of the first conveying screw (319) is fitted with a shell (320). The outer wall of the shell (320) is fixedly connected to the outer wall of the feed frame (102). The outer wall of the shell (320) is fixedly connected to the fourth motor (321). The output shaft of the fourth motor (321) is fixedly connected to the second conveying screw (322) through a coupling.

7. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 1, characterized in that, The striking mechanism (4) includes a third belt (401) connected to the outer wall of the first rotating shaft (311) via a pulley drive. The end of the third belt (401) away from the first rotating shaft (311) is connected to the third rotating shaft (402) via a pulley drive. A third bevel gear (403) is fixedly connected to the outer wall of the third rotating shaft (402). A fourth bevel gear (404) meshes with the outer wall of the third bevel gear (403). A fourth rotating rod (405) is fixedly connected to the bottom of the fourth bevel gear (404).

8. The automated production equipment for recycled polyester staple fiber from waste textiles according to claim 7, characterized in that, The bottom of the fourth rotating rod (405) is fixedly connected to a fixing block (406). The bottom of the fixing block (406) is rotatably connected to the inner wall of the feed frame (102) via a rotating shaft. A telescopic rod (407) is fixedly connected to one side of the fixing block (406). An impact block (408) is fixedly connected to the outer wall of the telescopic rod (407). A spring (409) is fixedly connected to the side of the impact block (408) near the telescopic rod (407). The telescopic rod (407) is located inside the spring (409).

9. A production method for an automated production equipment for recycled polyester staple fiber from waste textiles, comprising the automated production equipment for recycled polyester staple fiber from waste textiles as described in any one of claims 1-8, characterized in that, Specifically, the following steps are included: S1. Start the first motor (201) through the external controller to drive the first conveyor roller (202) to rotate. While the first conveyor roller (202) is rotating, it drives the first gear (203) to rotate through the external rotating rod, thereby causing the second gear (204) to rotate in the opposite direction to the first gear (203). S2. When the second gear (204) rotates, it will drive the second conveying roller (205) to rotate. At this time, the second conveying roller (205) rotates synchronously with the first conveying roller (202) and rotates in opposite directions, causing the material located in the middle area between the first conveying roller (202) and the second conveying roller (205) to fall. S3. The outer wall of the second conveying roller (205) is provided with spiral protrusions, and the inside of the first conveying roller (202) is provided with spiral grooves. The spiral protrusions push the material to both ends, and the spiral grooves provide temporary accommodation space for the material, reducing the contact area between the material and the roller surface, which aims to reduce the entanglement of the material.

10. A production method for an automated production equipment for recycled polyester staple fiber from waste textiles according to claim 9, characterized in that, The outer walls of the first conveying roller (202) in S1 and the second conveying roller (205) in S2 are provided with an axially penetrating groove (213) so that the cutting assembly can pass through and cut the fiber material wrapped on the first conveying roller (202) and the second conveying roller (205).

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