Stretching forming system and processing technology for differential thermal shrinkage spandex filaments

Abstract

The invention discloses a stretching forming system and a processing technology for differential thermal shrinkage spandex filaments, and relates to the technical field of textile equipment. The stretching wheel and the impurity removing mechanism in the system synchronously rotate through the transmission unit, the servo motor drives the stretching wheel to complete filament stretching and drives the impurity removing mechanism to synchronously execute impurity suction operation, impurities are automatically conveyed to the centralized collecting device through the impurity discharging assembly after being collected, the whole process does not need to be shut down, and the production efficiency is improved. The continuous production of stretching, impurity removing and impurity discharging is realized; a power assembly of the impurity removing mechanism is mechanically matched with a spherical ejection block through an arc-shaped driving block, automatic switching of negative pressure suction and impurity removing actions is achieved, namely when a collecting cavity rotates to the position close to filaments, a piston is pushed to move to form negative pressure, and suction holes are automatically opened to suck broken filaments and broken filament impurities; when the collecting cavity rotates to the horn-shaped barrel area of the impurity discharging assembly, the piston resets to generate positive pressure, and the effect that the impurity discharging opening is automatically opened to discharge broken filaments and broken filament impurities is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile equipment, in particular to a drawing forming system and processing technology for differential heat-shrinkable spandex filaments. BACKGROUND

[0002] Differential heat-shrinkable spandex filaments are special spandex fibers that realize the differentiation of heat shrinkage performance in different regions, batches or specifications based on ordinary spandex filaments through molecular structure design, spinning process regulation or post-treatment modification. The core feature is that the heat shrinkage rate, shrinkage rate or shrinkage temperature interval of different yarns or filaments is controllably different at a specific temperature, thereby giving the textile special structure and function.

[0003] Referring to the patent application with the publication number CN119145069A, a kind of fiber material controllable drawing forming equipment and its method are disclosed, by setting roller adjusting assembly, the height difference of roller in roller assembly can be adjusted, adjusting the height difference of roller can ensure that the tensile force received by fiber material during drawing is more uniform, avoids single point stress concentration, thereby improving the overall performance of material, and can reduce the risk of rupture of fiber material due to local stress during drawing, increase the ductility and strength of fiber material. The drawing forming equipment in the above prior art has the following defects in actual use: During spinning, winding and other pre-processes of spandex filaments, surface broken filaments and fluffs are easily generated due to friction, electrostatic adsorption, etc. Broken filaments and fluffs are easy to wrap around equipment components such as drawing rollers and yarn guides, increasing equipment wear and tear, and causing yarn deviation, affecting forming precision, and frequent shutdown for cleaning is required, greatly reducing production continuity. In addition, broken filaments and fluffs are also easy to embed inside or adhere to the surface of the formed spandex filaments, affecting the appearance smoothness of the product, and also causing hairiness and broken ends in subsequent textile processing, affecting the quality of downstream products.

[0004] Therefore, the present application proposes a drawing forming system and processing technology for differential heat-shrinkable spandex filaments to solve the above problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a drawing forming system and processing technology for differential heat-shrinkable spandex filaments, which solves the problem that broken filaments and fluffs adsorbed on the surface of the current spandex filaments are easy to wrap around equipment components such as drawing rollers and yarn guides, increasing equipment wear and tear, causing yarn deviation, affecting forming precision, and frequent shutdown for cleaning is required, greatly reducing production continuity, and broken filaments and fluffs are also easy to embed inside or adhere to the surface of the formed spandex filaments, affecting the appearance smoothness of the product, and also causing hairiness and broken ends in subsequent textile processing, affecting the quality of downstream products.

[0006] To achieve the above object, the present application is realized by the following technical solutions: for the stretch forming system of the differentiated heat-shrinkable spandex filament, including two side plates and spandex filament body arranged opposite to each other, further comprising: The stretching wheel is rotatably arranged between the two side plates through a first transmission shaft, and the first transmission shaft is driven to rotate by a servo motor. An annular groove is formed on the outer wall of the stretching wheel for guiding the spandex filament body. The impurity removal mechanism is rotatably arranged above the stretching wheel through a second transmission shaft, and the stretching wheel drives the impurity removal mechanism to rotate synchronously through a transmission unit. The impurity removal mechanism is driven by a driving assembly during the rotation process close to the spandex filament body to complete the suction and collection operation of the broken filaments and loose filaments on the surface of the spandex filament body. When the impurity removal mechanism is away from the spandex filament body, the collected broken filaments and loose filaments are automatically discharged to complete the automatic cleaning action of the surface impurities of the differentiated heat-shrinkable spandex filament. The cleaning and scraping assembly is arranged between the stretching wheel and the impurity removal mechanism and is fixed on the side wall of the side plate through a support, which is used to scrape off the broken filaments and loose filaments attached to the surface of the spandex filament body, so that the broken filaments and loose filaments are separated from the cleaning and scraping assembly.

[0007] Further, the impurity removal assembly is fixedly arranged on the outer wall of one of the side plates through a mounting bracket, which is used to receive the broken filaments and loose filaments discharged by the impurity removal mechanism, and the high-speed airflow instantaneously output by the impurity removal mechanism is used to push the broken filaments and loose filaments into the centralized collection device. The impurity removal assembly includes a horn barrel which is slidably arranged on the outer wall of the impurity removal mechanism. A long barrel body is fixedly arranged at the end of the horn barrel away from the impurity removal mechanism, which is used to directionally transport the broken filaments and loose filaments.

[0008] Further, the impurity removal mechanism includes a cleaning wheel. A plurality of collection cavities are uniformly arranged in the interior of the cleaning wheel. A power assembly for suctioning the broken filaments and loose filaments on the surface of the spandex filament is arranged in each collection cavity. A plurality of suction holes corresponding to the positions of the collection cavities are uniformly arranged on the outer wall of the cleaning wheel. Each suction hole is in communication with the collection cavity at the corresponding position. A protective plate is fixedly arranged at one end of the collection cavity. A plurality of air holes are arranged on the surface of the protective plate. A first movable hole is symmetrically arranged on the inner wall of the collection cavity and located on both sides of the suction hole. A lifting rod is slidably arranged in the first movable hole. One end of the two lifting rods slidably penetrates the first movable hole and is fixedly arranged with a sealing plate for blocking the suction hole. A first spring stop plate is fixedly arranged at the end of the lifting rod away from the sealing plate. A third spring is slidably sleeved on the outer wall of the lifting rod between the first movable hole and the first spring stop plate.

[0009] Furthermore, the power assembly includes a fixed baffle that is detachably mounted at one end of the collection chamber by bolts. A broken wire guide plate is fixedly mounted on the outer wall of the fixed baffle on one side inside the collection chamber. A discharge port is also provided below the outer wall of the fixed baffle. A push rod slides through the interior of the fixed baffle and the broken wire guide plate. A piston is fixedly mounted at one end of the push rod inside the collection chamber, and a spherical top block is fixedly mounted at the other end. A first spring is slidably sleeved on the outer wall of the push rod between the fixed baffle and the spherical top block. A dynamic sealing assembly for sealing the discharge port is also provided inside the discharge port.

[0010] Furthermore, the dynamic sealing assembly includes a collection hole opened on the front of the cleaning wheel and located on both sides of the collection chamber. A guide rod is slidably arranged inside each of the two collection holes. A second spring baffle is fixedly arranged at one end of the guide rod, and a movable baffle is fixedly arranged at the other end through the collection hole. A second spring is slidably sleeved on the outer wall of the guide rod between the collection hole and the second spring baffle.

[0011] Furthermore, the drive assembly includes an arc-shaped drive block, which has a first wedge-shaped surface at one end near the tension wheel and a second wedge-shaped surface at the other end. The spherical top block can slide and climb along the first wedge-shaped surface to the planar area of ​​the outer wall of the arc-shaped drive block and slide away along the second wedge-shaped surface.

[0012] Furthermore, the cleaning and scraping assembly includes a protective box, on which channels are provided on both the left and right side walls to facilitate the passage of the spandex filament body. A horizontal plate is also fixedly installed on the inner wall of the protective box, and a cleaning and scraping ring can be detachably installed on both sides of the bottom of the horizontal plate.

[0013] Furthermore, the transmission unit includes a second gear fixedly mounted on a first transmission shaft, a first gear fixedly mounted on the outer wall of the second transmission shaft, and a toothed belt for power transmission mounted together on the outer walls of the first gear and the second gear.

[0014] This invention also discloses a stretching and forming method for differentiated heat-shrinkable spandex filaments, and a stretching and forming system for differentiated heat-shrinkable spandex filaments, the method comprising the following steps: Step 1: First, thread one end of the spandex filament through the cleaning assembly and the stretching wheel, and then wind it onto the winding equipment; Step 2: The servo motor drives the first transmission shaft to rotate, and drives the cleaning mechanism to rotate synchronously through the transmission unit; Step 3: As the spandex filament body continuously passes through the cleaning assembly, the broken filaments and fuzz on the surface are scraped off and remain free in the cleaning assembly. During the rotation process, the cleaning mechanism is driven by the drive assembly to perform a suction action in the area within the cleaning assembly, sucking the free broken filaments and fuzz into the interior of the cleaning mechanism, and automatically discharging the collected broken filaments and fuzz through the discharge assembly.

[0015] This invention provides a stretching and forming system and processing technology for differentiated heat-shrinkable spandex filaments. Compared with the prior art, it has the following advantages: 1. For the stretching and forming system and processing technology of differentiated heat-shrinkable spandex filaments, the stretching wheel and the cleaning mechanism rotate synchronously through a transmission unit. The servo motor drives the stretching wheel to complete the filament stretching while simultaneously driving the cleaning mechanism to perform impurity suction. After collection, the impurities are automatically transported to a centralized collection device through the impurity removal component. The entire process does not require machine downtime, realizing continuous production of stretching, cleaning, and impurity removal, and significantly improving forming efficiency. Secondly, the power component of the cleaning mechanism achieves automatic switching between negative pressure suction and impurity removal through the mechanical cooperation of the arc-shaped drive block and the spherical top block. When the collection chamber rotates to the position close to the filament, the spherical top block climbs along the first wedge surface, pushing the piston to move and forming negative pressure. The suction port automatically opens and sucks up broken filaments and fuzzy impurities. When the collection chamber rotates to the trumpet-shaped area of ​​the impurity removal component, the spherical top block slides away along the second wedge surface, the piston resets to generate positive pressure, and the impurity removal port automatically opens to discharge broken filaments and fuzzy impurities. The entire process does not require additional manual control, has a high degree of automation, and reduces the intensity of manual operation.

[0016] 2. For the stretching and forming system and processing technology of differentiated heat-shrinkable spandex filaments, a dual cleaning structure of a scraping component and a cleaning mechanism is adopted. The polyurethane scraping ring of the scraping component can first physically scrape off the broken filaments and fuzz adhering to the filament surface. Then, the cleaning mechanism uses negative pressure suction to completely collect the impurities that are free in the sealed protective box after scraping, preventing impurities from adhering to the filament surface again. Compared with traditional manual cleaning or single cleaning methods, this effectively solves the problem of broken filament and fuzz residue, and improves the surface smoothness of differentiated heat-shrinkable spandex filaments. The scraping ring is made of polyurethane and the inner edge is rounded. While ensuring the scraping effect, it can avoid scratching the spandex filament body. It is adapted to the material characteristics of differentiated heat-shrinkable spandex filaments and prevents the filaments from tensile breakage or surface damage due to scraping.

[0017] 3. For the stretching and forming system and processing technology of differentiated heat-shrinkable spandex filaments, the design of the protective box of the scraping component is sealed and slidingly connected to the stretching wheel and the cleaning wheel, forming a relatively closed cleaning space. The scraped impurities are confined within the protective box, preventing them from drifting into the production workshop, improving the workshop working environment and reducing dust pollution. The impurity discharge component adopts a directional conveying structure with a trumpet-shaped extended cylinder. The trumpet-shaped cylinder slides closely against the outer wall of the cleaning wheel, which can accurately receive the impurities discharged by the cleaning mechanism. The impurities are pushed to the centralized collection device by high-speed airflow. The impurity discharge process is leak-free, realizing centralized treatment of impurities and reducing workshop cleaning costs.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the first state structure of the present invention with the side plate removed; Figure 4 This is a schematic diagram of the second state structure of the present invention with the side plates removed; Figure 5 For the present invention Figure 4 A magnified structural diagram of part A in the diagram; Figure 6 For the present invention Figure 4 A magnified structural diagram of part B in the diagram; Figure 7 This is a schematic diagram of the first cross-sectional structure of the present invention; Figure 8 For the present invention Figure 7 A magnified structural diagram of part C in the diagram; Figure 9 This is a schematic diagram of the second cross-sectional structure of the present invention; Figure 10 For the present invention Figure 9 A magnified structural diagram of part D in the diagram; Figure 11 This is a cross-sectional view of the cleaning mechanism of the present invention; Figure 12 For the present invention Figure 11 A magnified structural diagram of part E in the diagram; Figure 13 For the present invention Figure 11A magnified structural diagram of part F in the diagram; Figure 14 This is a schematic cross-sectional view of the cleaning wheel of the present invention; Figure 15 This is a schematic diagram of the power component structure of the present invention; Figure 16 This is a schematic diagram of the assembly state of the drive component and push rod of the present invention.

[0020] In the diagram: 1. Side plate; 2. Tensioning wheel; 3. Cleaning mechanism; 31. Cleaning wheel; 32. Collection chamber; 33. Power assembly; 331. Fixed baffle; 332. Broken wire guide plate; 333. Discharge port; 334. Push rod; 335. Piston; 336. Spherical top block; 337. First spring; 338. Movable baffle; 339. Guide rod; 3310. Second spring; 3311. Storage hole; 34. Suction hole; 35. Lifting rod; 36. Sealing plate; 37. Third spring; 38. Protective plate; 4. Scraping assembly; 41. Protective box; 42. Horizontal plate; 43. Scraping ring; 5. Spandex filament body; 6. First gear; 7. Second gear; 8. Toothed belt; 9. Drive assembly; 91. Arc-shaped drive block; 92. First wedge surface; 93. Second wedge surface; 10. Impurity removal assembly; 101. Long cylinder; 102. Horn tube. Detailed Implementation

[0021] 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.

[0022] This invention provides two technical solutions: a stretching and forming system for differentiated heat-shrinkable spandex filaments, specifically including the following embodiments: like Figures 1-10 A first embodiment is shown: a stretching and forming system for differentiated heat-shrinkable spandex filaments, including two side plates 1 arranged opposite each other and a spandex filament body 5, and further including: The stretching wheel 2 is rotatably mounted between the two side plates 1 via a first drive shaft. The first drive shaft is driven to rotate by a servo motor. The outer wall of the stretching wheel 2 is also provided with an annular groove for guiding the spandex filament body 5. The cleaning mechanism 3 is rotatably mounted above the stretching wheel 2 via the second drive shaft. The stretching wheel 2 drives the cleaning mechanism 3 to rotate synchronously via the transmission unit. As the cleaning mechanism 3 rotates closer to the spandex filament body 5, it is assisted by the drive component 9 to complete the collection and extraction of broken filaments and fuzz on the surface of the spandex filament body 5. When it moves away from the spandex filament body 5, it automatically discharges the collected broken filaments and fuzz, thus completing the automatic cleaning action of impurities on the surface of the differentiated heat-shrinkable spandex filament. The scraping assembly 4 is disposed between the stretching wheel 2 and the cleaning mechanism 3 and is fixed to the side wall of the side plate 1 by a bracket. It is used to scrape off the broken filaments and fuzz attached to the surface of the spandex filament body 5, so that the broken filaments and fuzz are freed in the scraping assembly 4.

[0023] In this embodiment, the stretching and forming system for differentiated heat-shrinkable spandex filaments also includes a waste removal component 10. The waste removal component 10 is fixedly mounted on the outer wall of one of the side plates 1 by a mounting bracket. It is used to receive broken filaments and fuzz discharged by the cleaning mechanism 3, and to push the broken filaments and fuzz into the centralized collection device by the high-speed airflow output by the cleaning mechanism 3. The impurity removal assembly 10 includes a horn-shaped tube 102 that is slidably and sealed on the outer wall of the impurity removal mechanism 3. A long cylindrical body 101 is fixedly installed at the end of the horn-shaped tube 102 away from the impurity removal mechanism 3 for directional conveying of broken filaments and fuzz. The end of the horn-shaped tube 102 with a larger opening is in close contact with the outer wall of the impurity removal wheel 31 and can slide relative to the impurity removal wheel 31. The horn-shaped tube 102 has an elongated arc shape. When the spherical top block 336 slides in the plane area of ​​the arc-shaped drive block 91 and approaches the second wedge-shaped surface 93, the impurity removal port 333 area at the corresponding position is already inside the horn-shaped tube 102. When the spherical top block 336 is in the area inside the horn-shaped tube 102, the spherical top block 336 slides away from the second wedge-shaped surface 93, and the movable baffle 338 can extend out from the impurity removal port 333, thus exposing the impurity removal port 333. For a period of time after the piston 335 is fully reset, the movable baffle 338 remains inside the horn tube 102. After the piston 335 is reset, the second spring 3310 drives the movable baffle 338 to re-enter the discharge port 333. The movable baffle 338, the cleaning wheel 31, and the fixed baffle 331 form a complete plane again. The movable baffle 338 and the horn tube 102 do not interfere with each other during the entire process.

[0024] In this embodiment, the cleaning assembly 4 includes a protective box 41. The protective box 41 has channels on its left and right side walls for the easy passage of the spandex filament body 5. A horizontal plate 42 is fixedly installed on the inner wall of the protective box 41. A cleaning ring 43 is detachably installed on each side of the bottom of the horizontal plate 42. The cleaning ring 43 can be flexibly replaced according to the outer diameter of the spandex filament body 5. The cleaning ring 43 is made of polyurethane, with an inner diameter 5%-8% smaller than the diameter of the spandex filament body 5, and its inner edge is rounded to prevent scratching the spandex filament body 5. Before performing the stretching operation, the spandex filament body 5 needs to be threaded through the two cleaning rings 43 using a threading device, such as a threading needle. The protective box 41 is made of transparent material to facilitate the threading operation. The top and bottom of the protective box 41 are open, and the top of the protective box 41 and the outer wall of the cleaning wheel 31 are in a sealed sliding connection, as are the bottom of the protective box 41 and the outer wall of the stretching wheel 2.

[0025] In this embodiment, the drive assembly 9 includes an arc-shaped drive block 91. One end of the arc-shaped drive block 91 near the tension wheel 2 has a first wedge-shaped surface 92, and the other end has a second wedge-shaped surface 93. The spherical top block 336 can slide and climb along the first wedge-shaped surface 92 to the planar area of ​​the outer wall of the arc-shaped drive block 91 and slide away along the second wedge-shaped surface 93. The arc-shaped drive block 91 is fixedly connected to the side wall of one of the side plates 1 via a mounting bracket.

[0026] In this embodiment, the transmission unit includes a second gear 7 fixedly sleeved on a first transmission shaft, a first gear 6 fixedly sleeved on the outer wall of the second transmission shaft, and a toothed belt 8 for power transmission is sleeved together on the outer walls of the first gear 6 and the second gear 7.

[0027] like Figures 11-16The second embodiment is shown, which differs from the first embodiment in that: the cleaning mechanism 3 includes a cleaning wheel 31, the interior of which is evenly provided with a plurality of collection chambers 32. Each collection chamber 32 is provided with a power component 33 for sucking up broken filaments and fuzz from the surface of the spandex filaments. The outer wall of the cleaning wheel 31 is also evenly provided with suction holes 34 corresponding one-to-one with the positions of the plurality of collection chambers 32. Each suction hole 34 is connected to the corresponding collection chamber 32. A protective plate 38 is fixedly provided at one end of the collection chamber 32. The protective plate 38 has multiple ventilation holes on its surface. Symmetrically arranged first movable holes are formed on the inner wall of the collection chamber 32 on both sides of the suction hole 34. Lifting rods 35 are slidably installed within these first movable holes. One end of each lifting rod 35 slides through the first movable hole and is fixedly fitted with a sealing plate 36 to block the suction hole 34. A first spring baffle is also fixedly installed at the end of the lifting rod 35 away from the sealing plate 36. A third spring 37 is slidably fitted on the outer wall of the lifting rod 35 between the first movable hole and the first spring baffle. The end of the suction hole 34 away from the collection chamber 32 is funnel-shaped to increase the channel for broken fibers and lint to enter.

[0028] In this embodiment, the power assembly 33 includes a fixed baffle 331 detachably mounted on one end of the collection chamber 32 by bolts. A broken wire guide plate 332 is fixedly mounted on the outer wall of the fixed baffle 331 on one side inside the collection chamber 32. A discharge port 333 is also provided below the outer wall of the fixed baffle 331. A push rod 334 slides through the interior of the fixed baffle 331 and the broken wire guide plate 332. A piston 335 is fixedly mounted on one end of the push rod 334 inside the collection chamber 32, and a spherical top block 336 is fixedly mounted on the other end. A first spring 337 is slidably sleeved on the outer wall of the push rod 334 between the fixed baffle 331 and the spherical top block 336. A dynamic sealing assembly for sealing the discharge port 333 is also provided inside the discharge port 333. The piston 335 is initially positioned close to the protective plate 38 and away from the suction hole 34, and will not encounter it during subsequent displacement.

[0029] In this embodiment, the dynamic sealing assembly includes receiving holes 3311 formed on the front of the cleaning wheel 31 and located on both sides of the collection chamber 32. Guide rods 339 are slidably disposed inside both receiving holes 3311. A second spring baffle is fixedly disposed at one end of each guide rod 339, and a movable baffle 338 is fixedly disposed at the other end, which slides through the receiving hole 3311. A second spring 3310 is slidably sleeved on the outer wall of the guide rod 339, located between the receiving hole 3311 and the second spring baffle. Rubber sealing gaskets are fixedly disposed at the contact points between the movable baffle 338 and the inner wall of the discharge port 333 to enhance the sealing performance during connection.

[0030] The present invention also provides a stretching and forming method for differentiated heat-shrinkable spandex filaments, and a stretching and forming system for differentiated heat-shrinkable spandex filaments, the method comprising the following steps: Step 1: First, thread one end of the spandex filament body 5 through the cleaning assembly 4 and the stretching wheel 2, and then wind it onto the winding device; Step 2: The servo motor drives the first transmission shaft to rotate, and drives the cleaning mechanism 3 to rotate synchronously through the transmission unit; Step 3: When the spandex filament body 5 continuously passes through the cleaning component 4, the broken filaments and fuzz on the surface are scraped off and freed in the cleaning component 4. During the rotation, the cleaning mechanism 3 is driven by the drive component 9 and performs a suction action in the area within the cleaning component 4, sucking the free broken filaments and fuzz into the interior of the cleaning mechanism 3, and automatically discharging the collected broken filaments and fuzz through the discharge component 10. The specific process is as follows: First, fix one end of the spandex filament body 5 to one end of the threading needle, enter the interior of the protective box 41 through the channel at one end, and then pass through the two cleaning rings 43 in sequence. The threading needle passes out through the channel on the other side of the protective box 41. Then, the spandex filament body 5 is wound around the winding roller of the winding equipment.

[0031] The winding equipment pulls the spandex filament body 5 to move at a preset speed, and the servo motor that drives the tension wheel 2 to rotate at the same speed. While rotating, the tension wheel 2 can stretch and assist in the traction of the spandex filament body 5 that is passing through.

[0032] After the broken filaments and fuzz on the surface of the spandex filament body 5 are scraped off by the cleaning ring 43, they are freed in the protective box 41. Since the protective box 41, the stretching wheel 2, and the cleaning mechanism 3 are in a relatively closed state, the broken filaments and fuzz will not escape from the protective box 41.

[0033] While the stretching wheel 2 rotates, the second gear 7 drives the first gear 6 to rotate synchronously through the toothed belt 8. While the cleaning mechanism 3 rotates, one of the spherical top blocks 336 moves with the cleaning wheel 31 to a position close to the first wedge surface 92. That is, the collection cavity 32, which is corresponding to the spherical top block 336, rotates to a position close to the spandex filament body 5. The spherical top block 336 gradually "climbs" along the inclined surface of the first wedge surface 92 to the planar area of ​​the arc-shaped drive block 91. During this process, the arc-shaped drive block 91 pushes the push rod 334 to move into the collection cavity 32, and the first spring 337 is compressed and undergoes elastic deformation. Piston 335 is pushed away from fixed baffle 331 by push rod 334. Air between piston 335 and protective plate 38 is squeezed out through vent holes in protective plate 38. At the same time, the pressure in the space between piston 335 and fixed baffle 331 gradually decreases. Suction hole 34 is located in this negative pressure space. Atmospheric pressure outside suction hole 34 overcomes the elastic force of third spring 37 and pushes sealing plate 36 into the negative pressure area inside collection chamber 32 until suction hole 34 and collection chamber 32 are connected. External pressure pushes... The movable baffle 338 is tightly attached to the outer wall of the cleaning wheel 31, so that the discharge port 333 is tightly sealed. At the same time, one of the suction holes 34 enters the protective box 41. The scraped broken wires and fuzz enter the collection chamber 32 through the gap between the sealing plate 36 and the suction hole 34 under the action of negative pressure. When the push rod 334 is pushed to the limit position, the piston 335 stops moving. At this time, the sealing plate 36 loses the negative pressure and is pushed back by the elastic force of the third spring 37. The broken wires and fuzz are sealed between the piston 335 and the fixed baffle 331 in the collection chamber 32. Next, the spherical top block 336 continues to slide along the flat surface of the side wall of the arc-shaped drive block 91 until it reaches its uppermost position. That is, the spherical top block 336 slides from the flat area of ​​the side wall of the arc-shaped drive block 91 towards the area of ​​the second wedge-shaped surface 93, and the collecting cavity 32 has entered the internal area of ​​the horn tube 102. At the same time, the spherical top block 336 gradually loses the lifting effect of the outer wall of the arc-shaped drive block 91, and under the elastic force of the first spring 337, the piston 335 begins to slide along the inner wall of the collecting cavity 32. The piston slides in the opposite direction until it returns to its original position. During this period, the piston 335 squeezes the air inside the collection chamber 32 in the opposite direction. When the pressure inside the collection chamber 32 increases, the movable baffle 338 is pushed away from the collection chamber 32, so that a gap appears between the movable baffle 338 and the discharge port 333. The air flows out quickly through the gap, and the broken filaments and hairs collected inside the collection chamber 32 enter the horn tube 102 along with the high-speed air flow through the gap, and enter the collection device through the long cylinder 101.

[0034] Next, the cleaning wheel 31 continues to rotate, the piston 335 is fully reset, no gas is discharged from the collection chamber 32, the movable baffle 338 is reset under the elastic force of the second spring 3310, and slides out from the inside of the horn tube 102 during subsequent rotation.

[0035] 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.

[0036] 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. A stretching and forming system for differentiated heat-shrinkable spandex filaments, comprising two side plates arranged opposite each other and a spandex filament body, characterized in that, Also includes: The stretching wheel is rotatably mounted between two side plates via a first drive shaft, which is driven to rotate by a servo motor. The outer wall of the stretching wheel is also provided with an annular groove for guiding the spandex filament body. The cleaning mechanism is rotatably mounted above the stretching wheel via the second drive shaft. The stretching wheel drives the cleaning mechanism to rotate synchronously via the transmission unit. As the cleaning mechanism rotates closer to the spandex filament body, it is assisted by the drive assembly to complete the collection and extraction of broken and fuzzy filaments on the surface of the spandex filament body. When it moves away from the spandex filament body, it automatically discharges the collected broken and fuzzy filaments, thus completing the automatic cleaning action of impurities on the surface of the differentiated heat-shrinkable spandex filament. The scraping assembly, which is located between the stretching wheel and the cleaning mechanism and fixed to the side wall of the side plate by a bracket, is used to scrape off the broken and fuzzy fibers attached to the surface of the spandex filament body, so that the broken and fuzzy fibers are freed in the scraping assembly.

2. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 1, characterized in that: It also includes a waste removal component, which is fixedly mounted on the outer wall of one of the side plates by a mounting bracket. This component is used to receive broken filaments and fuzz discharged by the waste removal mechanism and to push the broken filaments and fuzz into the centralized collection device by the high-speed airflow output by the waste removal mechanism. The impurity removal assembly includes a horn tube that is sealed and slidably disposed on the outer wall of the impurity removal mechanism. A long cylindrical body is fixedly disposed at one end of the horn tube away from the impurity removal mechanism for directional conveying of broken filaments and fuzz.

3. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 1, characterized in that: The cleaning mechanism includes a cleaning wheel with multiple collection chambers evenly distributed inside. Each collection chamber is equipped with a power component for sucking up broken and fuzzy fibers from the surface of the spandex filament. The outer wall of the cleaning wheel is also evenly provided with suction holes that correspond one-to-one with the positions of the multiple collection chambers. Each suction hole is connected to the collection chamber at the corresponding position. A protective plate is fixedly provided at one end of each collection chamber, and multiple ventilation holes are provided on the surface of the protective plate. The inner wall of the collection chamber is symmetrically provided with first movable holes on both sides of the suction hole. A lifting rod is slidably arranged in the first movable hole. One end of the two lifting rods slides through the first movable hole and is fixedly provided with a sealing plate for blocking the suction hole. A first spring baffle is also fixedly provided at the end of the lifting rod away from the sealing plate. A third spring is slidably sleeved on the outer wall of the lifting rod between the first movable hole and the first spring baffle.

4. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 3, characterized in that: The power assembly includes a fixed baffle that is detachably mounted at one end of the collection chamber by bolts. A broken wire guide plate is fixedly mounted on the outer wall of the fixed baffle on one side inside the collection chamber. A discharge port is also provided below the outer wall of the fixed baffle. A push rod slides through the interior of the fixed baffle and the broken wire guide plate. A piston is fixedly mounted at one end of the push rod inside the collection chamber, and a spherical top block is fixedly mounted at the other end. A first spring is slidably sleeved on the outer wall of the push rod between the fixed baffle and the spherical top block. A dynamic sealing assembly for sealing the discharge port is also provided inside the discharge port.

5. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 4, characterized in that: The dynamic sealing assembly includes a collection hole on the front of the cleaning wheel and located on both sides of the collection chamber. A guide rod is slidably arranged inside each of the two collection holes. A second spring baffle is fixedly arranged at one end of the guide rod, and a movable baffle is fixedly arranged at the other end through the collection hole. A second spring is slidably sleeved on the outer wall of the guide rod between the collection hole and the second spring baffle.

6. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 4, characterized in that: The drive assembly includes an arc-shaped drive block. One end of the arc-shaped drive block near the tension wheel is provided with a first wedge-shaped surface, and the other end is provided with a second wedge-shaped surface. The spherical top block can slide and climb along the first wedge-shaped surface to the planar area of ​​the outer wall of the arc-shaped drive block and slide away along the second wedge-shaped surface.

7. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 1, characterized in that: The cleaning and scraping assembly includes a protective box, on which channels are provided on both the left and right side walls to facilitate the passage of the spandex filament body. A horizontal plate is also fixedly installed on the inner wall of the protective box, and a cleaning and scraping ring can be detachably installed on both sides of the bottom of the horizontal plate.

8. The stretching and forming system for differentiated heat-shrinkable spandex filaments according to claim 1, characterized in that: The transmission unit includes a second gear fixedly mounted on a first transmission shaft, a first gear fixedly mounted on the outer wall of the second transmission shaft, and a toothed belt for power transmission mounted together on the outer walls of the first gear and the second gear.

9. A method for stretching and forming differentiated heat-shrinkable spandex filaments, used in the stretching and forming system for differentiated heat-shrinkable spandex filaments as described in any one of claims 1-8, characterized in that: The method includes the following steps: Step 1: First, thread one end of the spandex filament through the cleaning assembly and the stretching wheel, and then wind it onto the winding equipment; Step 2: The servo motor drives the first transmission shaft to rotate, and drives the cleaning mechanism to rotate synchronously through the transmission unit; Step 3: As the spandex filament body continuously passes through the cleaning assembly, the broken filaments and fuzz on the surface are scraped off and remain free in the cleaning assembly. During the rotation process, the cleaning mechanism is driven by the drive assembly to perform a suction action in the area within the cleaning assembly, sucking the free broken filaments and fuzz into the interior of the cleaning mechanism, and automatically discharging the collected broken filaments and fuzz through the discharge assembly.

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