Controllable stretching forming equipment and method for fiber material

Abstract

The invention relates to the field of fiber materials, in particular to fiber material controllable stretching forming equipment and a method thereof. The controllable stretching forming equipment for the fiber material comprises a stretching box; the two partition plates are installed in the stretching box, a cavity in the stretching box is divided into a stretching chamber and two adjusting chambers through the two partition plates, and the stretching chamber is located between the two adjusting chambers; wherein a plurality of groups of roller assemblies are arranged in the stretching chamber, and a fiber material can be stretched through the plurality of groups of roller assemblies. According to the controllable stretching forming equipment and method for the fiber material, by arranging the roller adjusting assembly, the height difference of the rollers in the roller assembly can be adjusted, and it can be ensured that the stretching force borne by the fiber material in the stretching process is more uniform by adjusting the height difference of the rollers; and the fracture risk caused by overlarge local stress in the stretching process of the fiber material can be reduced, and the ductility and strength of the fiber material are improved.

Description

Technical Field

[0001] The invention relates to the field of fiber materials, and in particular to a controllable stretching and forming device for fiber materials and a method thereof. Background Art

[0002] Fiber forming is the process of converting polymers or natural fibers into fiber materials with certain strength and elongation through a series of drawing processes. The drawing process is a key step in fiber forming and directly determines the physical properties of the fiber and the quality of the final product. During the drawing process, the fiber material is processed through controlled drawing speed, temperature and drawing multiple. This process causes the molecular chains to rearrange and form a more ordered and compact structure, thereby significantly improving the strength and fatigue resistance of the fiber.

[0003] The optimized stretching process can significantly enhance the intrinsic quality of the fiber, greatly increasing its potential for application in demanding fields such as textiles, medical and aerospace. Through precise stretching control, the fiber can not only obtain higher mechanical properties, but also maintain its stability and durability in special harsh environments.

[0004] In the prior art, for example, in the patent document with publication number CN117987938A, a preparation method of porous ultra-fine denier nylon 6FDY fiber produced by side blowing is disclosed. The method successfully produces nylon fiber with a DPF less than 0.3 by designing a reasonable melt pipe and a melt static mixer, and accurately controlling the melt temperature, pressure and draft multiple. This fiber not only performs well in physical properties, but also has a very stable production process. However, traditional stretching equipment often causes stress concentration or uneven stretching of the fiber during the stretching process due to improper design or insufficient control. These problems usually cause excessive local stress on the fiber, resulting in breakage or deformation, which seriously affects the performance and quality of the fiber material.

[0005] Therefore, it is necessary to provide a new fiber material controllable stretching molding device and method to solve the above technical problems. Summary of the invention

[0006] In order to overcome the defects of the prior art, a fiber material controllable stretching molding device and method are provided to solve the above problems.

[0007] The fiber material controllable stretching forming device and method provided by the present invention include: a stretching box; two partitions installed in the stretching box, and the cavity inside the stretching box is divided into a stretching chamber and two adjustment chambers by the two partitions, and the stretching chamber is located between the two adjustment chambers; wherein, multiple groups of roller assemblies are arranged in the stretching chamber, and the fiber material can be stretched by the multiple groups of roller assemblies; roller adjustment assemblies are arranged in both of the two adjustment chambers, and the height of the multiple groups of roller assemblies can be adjusted by the adjustment assemblies; a feed roller assembly is arranged on one side of the stretching box, and the feed roller assembly can be used to adjust the height of the fiber material before stretching. The fiber material is pulled; a discharging roller assembly is arranged on the side of the stretching box away from the feed roller assembly, and the stretched fiber material can be pulled by the discharging roller assembly; a feed port and a discharging port are respectively opened on both sides of the stretching box, and the feed port is located on the side close to the feed roller assembly, and the discharging port is located on the side close to the discharging roller assembly; a heating element and a cooling element are respectively installed at the two ends of the two partitions that are relatively far away from the side, the heating element is located on the side of the stretching box close to the feed roller assembly, and the cooling element is located on the side of the stretching box close to the discharging roller assembly, and a plurality of air holes are opened through both ends of the two partitions.

[0008] Preferably, the roller assembly includes a fixed roller installed between the two partitions, and the fixed roller is located on one side of the center of the partition, main stretching rollers are arranged on both sides of the fixed roller, and both ends of the two main stretching rollers are slidably connected to the inner wall of the partition, and auxiliary stretching rollers are arranged on the side relatively away from the two main stretching rollers, and both ends of the two auxiliary stretching rollers are slidably connected to the inner wall of the partition.

[0009] Preferably, the roller adjustment assembly includes a bidirectional screw rod installed on one side of the partition through a bracket, and the bidirectional screw rod is located in the adjustment chamber, both ends of the outer side of the bidirectional screw rod are rotatably connected with screw blocks, main sliding rods are installed on both sides of the bidirectional screw rod through the bracket, the outer side of the main sliding rod is slidably connected with a main sliding block, and auxiliary sliding rods are installed on the relatively distant sides of the two main sliding rods, and the outer sides of the two auxiliary sliding rods are slidably connected with auxiliary sliding blocks; a first driving member for driving the bidirectional screw rod to rotate is installed on the top of one side of the partition.

[0010] Preferably, one side of the wire block located above is connected to two main connecting rods, and the relatively distant sides of the two main connecting rods are respectively connected to one side of the two main sliders, and one side of the two secondary connecting rods are respectively connected to one side of the two secondary sliders, and the two main sliders and the two secondary sliders have one side close to the partition plate through a connecting shaft and are respectively connected to the main stretching roller and the secondary stretching roller, and a plurality of adjustment grooves for the sliding of the connecting shaft are provided on the partition plate.

[0011] Preferably, the feed roller assembly includes a main drive box and a secondary drive box installed on one side of the stretching box, and the main drive box and the secondary drive box are arranged opposite to each other. A main bidirectional screw is rotatably connected in the main drive box, and both ends of the outer sides of the main bidirectional screw are threadedly connected with main threaded sleeves. The circumferential sides of the two main threaded sleeves are respectively rotatably connected with a main bevel gear, a driving bevel gear and a secondary bevel gear. The driving bevel gear is located between the main bevel gear and the secondary bevel gear, and the main bevel gear is meshed with the secondary bevel gear through the driving bevel gear.

[0012] Preferably, a secondary bidirectional screw is rotatably connected in the secondary drive box, and both ends of the outer side of the secondary bidirectional screw are threadedly connected with secondary threaded sleeves, and sliding grooves are provided on the relatively close sides of the main drive box and the secondary drive box, and two feed rollers are arranged between the main drive box and the secondary drive box, and the two feed rollers are distributed up and down, and both ends of the two feed rollers are respectively connected to the secondary bevel gear and the secondary threaded sleeve through a transmission rod.

[0013] Preferably, the tops of the main drive box and the auxiliary drive box are both rotatably connected with gears, the bottom of one of the gears passes through the top of the main drive box through a connecting rod and is connected to the top of the main bidirectional screw, the bottom of the other gear passes through the top of the auxiliary drive box through a connecting rod and is connected to the top of the auxiliary bidirectional screw, and the two gears are connected by a gear belt drive; a second drive member for driving the gear to rotate is installed on the top of the main drive box.

[0014] Preferably, two guide rods are installed on the side of the main drive box away from the auxiliary drive box, and two third drive members are slidably connected to the two guide rods, and the output ends of the two third drive members are respectively connected to one side of the main bevel gear.

[0015] Preferably, the discharge roller assembly has the same structure as the feed roller assembly described above.

[0016] Preferably, during the feeding stage, the feed roller assembly is started, and the gear in the main drive box is driven to rotate by the second drive member, thereby driving the main bidirectional screw and the auxiliary bidirectional screw to rotate synchronously. Since the outer sides of the main bidirectional screw and the auxiliary bidirectional screw are respectively threadedly connected with the main thread sleeve and the auxiliary thread sleeve, and the two realize synchronous movement through the meshing relationship of the driving bevel gear, the main bevel gear and the auxiliary bevel gear, the main thread sleeve and the auxiliary thread sleeve will move along the axial direction of the screw. With the movement of the main thread sleeve and the auxiliary thread sleeve, the two feed rollers distributed up and down are driven to rotate through the transmission rod, thereby pulling the fiber material to be stretched into the stretching box. At the same time, the third drive member can slide along the guide rod to adjust the position of the main bevel gear to fine-tune the distance between the feed rollers, thereby controlling the feeding tension of the fiber material;

[0017] In the heating and stretching stage, the fiber material first passes through the heating element and is heated to a suitable temperature to soften it, increase the stretchability of the fiber material, and improve the fiber strength;

[0018] The fiber material after stretching, forming and softening enters the stretching chamber and is stretched by multiple roller assemblies. The height of the roller assembly can be adjusted by the roller adjustment assembly. The bidirectional screw rotates under the drive of the first driving member, driving the fiber block to move along the screw, and then the main slider and the auxiliary slider are driven to slide on the main slider and the auxiliary slider respectively through the main connecting rod and the auxiliary connecting rod, and finally the main stretching roller and the auxiliary stretching roller are lifted and lowered, so as to control the stretching ratio and the stretching force. In the cooling and shaping stage, the stretched fiber material passes through the cooling device and is quickly cooled to room temperature so that it maintains the stretched shape and completes the fiber shaping.

[0019] In the discharging stage, the discharging roller assembly works, and the discharging roller assembly with the same structure as the feeding roller assembly starts, and drives the discharging roller to rotate through a similar driving mechanism, pulling the stretched and cooled fiber material to be discharged from the discharging port, completing the entire stretching and forming process.

[0020] Compared with the related art, the fiber material controllable stretching forming device and method provided by the present invention have the following beneficial effects:

[0021] The present invention can adjust the height difference of the rollers in the roller assembly by setting a roller adjustment component. Adjusting the height difference of the rollers can ensure that the stretching force on the fiber material during the stretching process is more uniform, avoid single-point stress concentration, thereby improving the overall performance of the material, and can reduce the risk of breakage of the fiber material due to excessive local stress during the stretching process, thereby increasing the ductility and strength of the fiber material.

[0022] The present invention provides a feed roller assembly, and the distance between two feed rollers can be adjusted through the feed roller assembly to pull the fiber material before stretching, thereby ensuring that the fiber material stably enters the stretching chamber, and can be adjusted according to the different thicknesses and widths of the fiber material to ensure that the fiber material will not deviate, wrinkle or accumulate during the feeding process, thereby ensuring the continuity and stability of the stretching process and reducing downtime and waste caused by unstable feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a preferred embodiment of the fiber material controllable stretching and forming device and method provided by the present invention;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the roller assembly shown;

[0025] Figure 3 for Figure 1 The structural schematic diagram of the roller adjustment assembly shown;

[0026] Figure 4 for Figure 1 A schematic structural diagram of one of the feed roller assemblies shown;

[0027] Figure 5 for Figure 1 A schematic structural diagram of a second feed roller assembly shown;

[0028] Figure 6 Schematic diagram of wind convection of heating element.

[0029] Numbers in the figure: 1. stretching box; 2. partition; 3. fixed roller; 31. main stretching roller; 32. auxiliary stretching roller; 4. bidirectional screw; 41. screw block; 42. main slide; 43. main slider; 44. auxiliary slide; 45. auxiliary slider; 46. main connecting rod; 47. auxiliary connecting rod; 5. main drive box; 51. auxiliary drive box; 52. main bidirectional screw; 53. main threaded sleeve; 54. main bevel gear; 55. driving bevel gear; 56. auxiliary bevel gear; 6. auxiliary bidirectional screw; 61. auxiliary threaded sleeve; 62. feed roller; 63. gear; 7. guide rod; 8. first drive member; 81. second drive member; 82. third drive member. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Embodiment 1: Fiber material: nylon fiber (nylon 6), heating element temperature: 135-140°C, cooling temperature: 19-20°C.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] The embodiment of the present invention provides a controllable stretching and forming device and method for nylon fiber (nylon 6), and the controllable stretching and forming device and method for nylon fiber (nylon 6) include: a stretching box 1; two partitions 2 installed in the stretching box 1, and the cavity inside the stretching box 1 is divided into a stretching chamber and two adjustment chambers by the two partitions 2, and the stretching chamber is located between the two adjustment chambers; wherein, multiple groups of roller assemblies are arranged in the stretching chamber, and the nylon fiber (nylon 6) can be stretched by the multiple groups of roller assemblies; roller adjustment assemblies are arranged in both adjustment chambers, and the heights of the multiple groups of roller assemblies can be adjusted by the adjustment assemblies; a feed roller assembly is arranged on one side of the stretching box 1 Parts, and the nylon fiber (nylon 6) before stretching can be pulled by the feed roller assembly; a discharge roller assembly is arranged on the side of the stretching box 1 away from the feed roller assembly, and the nylon fiber (nylon 6) after stretching is pulled by the discharge roller assembly; a feed port and a discharge port are respectively opened on both sides of the stretching box 1, and the feed port is located on the side close to the feed roller assembly, and the discharge is located on the side close to the discharge roller assembly; a heating part and a cooling part are respectively installed at the two ends of the two partitions 2 relatively far away from the side, the heating part is located on the side of the stretching box 1 close to the feed roller assembly, and the cooling part is located on the side of the stretching box 1 close to the discharge roller assembly, and a plurality of ventilation holes are opened at both ends on both sides of the two partitions 2.

[0034] It should be noted that the stretching box 1 is the main structural frame of the equipment, which is used to accommodate and support other components, provide a closed environment, and ensure that the nylon fiber (nylon 6) is stretched under ideal conditions. Two partitions 2 are installed in the stretching box 1, dividing its internal cavity into a central stretching chamber and two side adjustment chambers. The partition 2 not only plays a partitioning role, but also has a heating element and a cooling element installed at both ends. The heating element is a resistance heater, and the cooling element is a heat exchanger. The heating element and the cooling element are oppositely distributed and ventilated through the air vents, which can realize convection circulation and promote the diffusion and uniform distribution of heat. The heating element and the cooling element are both prior art and will not be further described here. A roller adjustment assembly is installed in the adjustment chamber, and multiple groups of roller assemblies are installed in the stretching chamber to adjust the height of the roller assembly and stretch the nylon fiber (nylon 6). The feed roller assembly is installed on one side of the stretching box 1, and the nylon fiber (nylon 6) before stretching is pulled by the feed roller assembly to ensure that the nylon fiber (nylon 6) enters the stretching chamber stably. The discharge roller assembly is installed on the side of the stretching box 1 away from the feed roller assembly. The stretched nylon fiber (nylon 6) is pulled by the discharge roller assembly to ensure smooth output of the stretched nylon fiber (nylon 6).

[0035] In an embodiment of the present invention, the roller assembly includes a fixed roller 3 installed between the two partitions 2, and the fixed roller 3 is located on one side of the center of the partition 2, main stretching rollers 31 are arranged on both sides of the fixed roller 3, and both ends of the two main stretching rollers 31 are slidably connected to the inner wall of the partition 2, and auxiliary stretching rollers 32 are arranged on the side relatively far away from the two main stretching rollers 31, and both ends of the two auxiliary stretching rollers 32 are slidably connected to the inner wall of the partition 2, and the roller adjustment assembly includes a bidirectional screw rod 4 installed on one side of the partition 2 through a bracket, and the bidirectional screw rod 4 is located in the adjustment chamber, and both ends of the outer side of the bidirectional screw rod 4 are rotatably connected to the screw block 41, and main sliding rods 42 are installed on both sides of the bidirectional screw rod 4 through the bracket, and the outer side of the main sliding rod 42 is slidably connected to the main sliding block 43, and the two A secondary slide bar 44 is installed on the relatively distant side of the main slide bar 42, and the outer sides of the two secondary slide bars 44 are slidably connected with secondary slide blocks 45; a first driving member 8 for driving the bidirectional screw rod 4 to rotate is installed on the top of one side of the partition 2, two main connecting rods 46 are connected to one side of the upper wire block 41, and the relatively distant sides of the two main connecting rods 46 are respectively connected to one side of the two main slide blocks 43, two secondary connecting rods 47 are connected to one side of the lower wire block 41, and the relatively distant sides of the two secondary connecting rods 47 are respectively connected to one side of the two secondary slide blocks 45, the two main slide blocks 43 and the two secondary slide blocks 45 are close to the partition 2 through the connecting shaft and are respectively connected to the main stretching roller 31 and the secondary stretching roller 32, and a plurality of adjustment grooves for the sliding of the connecting shaft are provided on the partition 2.

[0036] It should be noted that the secondary stretching roller 32 and the main stretching roller 31 are GR2 and GR1 hot rollers respectively. The main stretching roller is located in the initial stretching section and is used to preheat the nylon fiber (nylon 6). When stretching the nylon fiber (nylon 6), the temperature of the main stretching roller is 80°C-98°C. The secondary stretching roller is generally located in the middle and rear sections of the stretching, and its temperature is set higher than that of the main stretching roller to further soften the nylon fiber (nylon 6) and promote stretching and shaping. When stretching the nylon fiber (nylon 6), the temperature of the secondary stretching roller is 120°C to 140°C. The speed control of the main stretching roller is set according to the stretching ratio, which is about 60% to 80% of the speed of the secondary stretching roller. The speed of the secondary stretching roller is 1.5 times to 3.2 times that of the main stretching roller to ensure the uniformity of the fiber during the stretching process and the final fiber physical properties. Among them, the fixed roller 3 is installed between the two partitions 2, the position is fixed, and it mainly plays a supporting and stabilizing role. The main stretching roller 31 is located on both sides of the fixed roller 3, and is connected to the inner wall of the partition 2 through a sliding connection. It can slide and adjust the position on the inner wall of the partition 2 to adapt to different stretching requirements. The auxiliary stretching roller 32 is relatively far away from the main stretching roller 31. It is also connected to the inner wall of the partition 2 through a sliding connection. It is used in conjunction with the main stretching roller 31 to achieve multi-stage stretching processing of the material. The bidirectional screw 4 is installed on one side of the partition 2, fixed by a bracket, and located in the adjustment chamber. It is used to adjust the displacement of the main slider 43 and the auxiliary slider 45. It is installed at both ends of the bidirectional screw 4, and the screw block is driven to move along the screw by rotating the screw. The main slide 42 is installed on both sides of the bidirectional screw 4 through a bracket, and is slidably connected to the main slide 43 for support and guidance. It is installed on the relatively far side of the main slide 42 and is slidably connected to the auxiliary slide 45 to assist in achieving smooth stretching adjustment. The first driving member 8 is installed on the top of one side of the partition 2, and is used to drive the rotation of the bidirectional screw 4, so that the wire block 41 moves, thereby driving the movement of the main slider 43 and the auxiliary slider 45. The main connecting rod 46 and the auxiliary connecting rod 47 are respectively connected to the upper and lower sides of the wire block 41. The main connecting rod 46 is connected to the main slider 43, and the auxiliary connecting rod 47 is connected to the auxiliary slider 45. The adjustment of the slider and the roller is achieved through the movement of the wire block 41. It is opened on the partition 2 and is used for the sliding of the connecting shaft. Through the design of the adjustment groove, the main stretching roller 31 and the auxiliary stretching roller 32 can slide and adjust the position on the inner side of the partition 2 as needed, ensuring that the nylon fiber (nylon 6) obtains a uniform force distribution during the stretching process. When the first driving member 8 drives the bidirectional screw 4 to rotate, the wire block 41 will move along the screw, driving the main connecting rod 46 and the auxiliary connecting rod 47 to move, thereby adjusting the position of the main slider 43 and the auxiliary slider 45. By adjusting the sliding of the main slide bar 42 and the auxiliary slide bar 44, the position adjustment of the main stretching roller 31 and the auxiliary stretching roller 32 is finally achieved to ensure that the nylon fiber (nylon 6) obtains the required tension and deformation during the stretching process. The first driving member 8 is an electric motor.

[0037] In an embodiment of the present invention, a feed roller assembly includes a main drive box 5 and a sub-drive box 51 installed on one side of a stretching box 1, and the main drive box 5 and the sub-drive box 51 are arranged opposite to each other, a main bidirectional screw 52 is rotatably connected in the main drive box 5, and both ends of the outer sides of the main bidirectional screw 52 are threadedly connected with main thread sleeves 53, and the circumferential sides of the two main thread sleeves 53 are respectively rotatably connected with a main bevel gear 54, a driving bevel gear 55 and a sub-bevel gear 56, and the driving bevel gear 55 is located between the main bevel gear 54 and the sub-bevel gear 56, and the main bevel gear 54 is meshed with the sub-bevel gear 56 through the driving bevel gear 55, a sub-bidirectional screw 6 is rotatably connected in the sub-drive box 51, and both ends of the outer sides of the sub-bidirectional screw 6 are threadedly connected with sub-thread sleeves 61, a sliding groove is provided on the side relatively close to the main drive box 5 and the sub-drive box 51, and two feed rollers 62 are arranged between the main drive box 5 and the sub-drive box 51, and the two feed rollers 62 is distributed up and down, and both ends of the two feed rollers 62 are connected to the secondary bevel gear 56 and the secondary threaded sleeve 61 respectively through a transmission rod, and the tops of the main drive box 5 and the secondary drive box 51 are rotatably connected with gears 63, the bottom of one gear 63 passes through the top of the main drive box 5 through a connecting rod and is connected to the top of the main bidirectional screw 52, ​​and the bottom of the other gear 63 passes through the top of the secondary drive box 51 through a connecting rod and is connected to the top of the secondary bidirectional screw 6, and the two gears 63 are connected by a gear belt transmission; a second driving member 81 for driving the gear 63 to rotate is installed at the top of the main drive box 5, and two guide rods 7 are installed on the side of the main drive box 5 away from the secondary drive box 51, and two third driving members 82 are slidably connected to the two guide rods 7, and the output ends of the two third driving members 82 are respectively connected to one side of the main bevel gear 54, and the structure of the discharge roller assembly is the same as that of the above-mentioned feed roller assembly.

[0038] It should be noted that: the main drive box 5 is installed on one side of the stretching box 1, and is internally rotatably connected with a main bidirectional screw 52. The auxiliary drive box 51 is arranged opposite to the main drive box, and is internally rotatably connected with a secondary bidirectional screw 6. The two ends of the bidirectional screw 52 are threadedly connected with a main thread sleeve 53. The circumferential side of the main thread sleeve 63 is respectively rotatably connected with a main bevel gear 54, a driving bevel gear 55 and a secondary bevel gear 56. The main thread sleeve 63 can drive the gears thereon to move up and down. The main bevel gear 54 is meshed and connected with the secondary bevel gear 56 through the driving bevel gear 55 to form a stable gear transmission system. Two gears 63 are respectively mounted on the top of the main drive box 5 and the auxiliary drive box 51, and are respectively connected to the top of the main bidirectional screw 52 and the auxiliary bidirectional screw 56 through connecting rods. The two gears 63 are connected by gear belt transmission to ensure synchronous operation. They are located between the main drive box 5 and the auxiliary drive box 51 and are distributed up and down. The two ends of the feed roller 62 are respectively connected to the auxiliary bevel gear and the auxiliary thread sleeve through the transmission rod to ensure the stability and continuity of the feed. The second drive member 81 is mounted on the top of the main drive box 5, which is used to drive the gear 63 to rotate, thereby driving the rotation of the main bidirectional screw 52 and the auxiliary bidirectional screw 56, and realizing the position adjustment and feeding control of the feed roller 62. The second drive member 81 is an electric motor. The guide rod 7 is mounted on the side of the main drive box 5 away from the auxiliary drive box 51. There are two guide rods 7 for providing guidance and support. The guide rod 7 not only provides structural support, but also ensures that the third drive member can slide smoothly to avoid deviation during operation. The third drive member 82 is an electric motor.

[0039] In the embodiment of the present invention, in the feeding stage, the feed roller assembly is started, and the gear 63 in the main drive box 5 is driven to rotate by the second drive member, thereby driving the main bidirectional screw 52 and the auxiliary bidirectional screw 6 to rotate synchronously. Since the outer sides of the main bidirectional screw 52 and the auxiliary bidirectional screw 6 are respectively threadedly connected with the main thread sleeve 53 and the auxiliary thread sleeve 61, and the two realize synchronous movement through the meshing relationship of the driving bevel gear 55, the main bevel gear 54 and the auxiliary bevel gear 56, the main thread sleeve 53 and the auxiliary thread sleeve 61 will move along the axial direction of the screw. With the movement of the main thread sleeve 53 and the auxiliary thread sleeve 61, the two feed rollers 62 distributed up and down are driven to rotate through the transmission rod, thereby pulling the nylon fiber (nylon 6) to be stretched into the stretching box 1. At the same time, the third drive member 82 can slide along the guide rod 7 to adjust the position of the main bevel gear 54 to fine-tune the distance between the feed rollers 62, thereby controlling the feeding tension of the nylon fiber (nylon 6); in the heating and stretching stage, heating and softening, the nylon fiber (nylon 6) first passes through the heating element and is heated. to a suitable temperature to soften it and increase the stretchability of the material; the nylon fiber (nylon 6) after stretching and softening enters the stretching chamber and is stretched by multiple groups of roller assemblies. The height of the roller assembly can be adjusted by the roller adjustment assembly. The bidirectional screw 4 rotates under the drive of the first driving member, driving the silk block 41 to move along the screw, and then driving the main slider 43 and the auxiliary slider 45 to slide on the main slider 42 and the auxiliary slider 44 through the main connecting rod 46 and the auxiliary connecting rod 47 respectively, and finally realizing the lifting and lowering of the main stretching roller 31 and the auxiliary stretching roller 32, so as to control the stretching ratio and the stretching force. In the cooling and shaping stage, the stretched nylon fiber (nylon 6) passes through the cooling member and is quickly cooled to room temperature, so that it maintains the stretched shape and completes the shaping; in the discharging stage, the discharging roller assembly works, and the discharging roller assembly with the same structure as the feeding roller assembly is started, and the discharging roller is driven to rotate through a similar driving mechanism, and the nylon fiber (nylon 6) that has been stretched and cooled and shaped is pulled out from the discharging port to complete the entire stretching and shaping process.

[0040] It should be noted that: before the nylon fiber (nylon 6) enters the feed roller, a pretreatment device, such as a dust removal device or a pre-wetting device, can be set to remove impurities on the surface of the material or increase its surface humidity, thereby improving the effect of subsequent heating and softening. The gear 63 in the main drive box 5 is driven to rotate by the second drive member 81, and the main bidirectional screw 52 and the auxiliary bidirectional screw 6 rotate synchronously under the action of the main drive box. The main thread sleeve 53 and the auxiliary thread sleeve 61 are respectively threadedly connected to the outside of the main bidirectional screw 52 and the auxiliary bidirectional screw 6. As the screw rotates, the thread sleeve moves axially. The movement of the thread sleeve drives the two feed rollers 62 distributed up and down to rotate through the transmission rod, pulling the nylon fiber (nylon 6) into the stretching box 1. The third drive member 82 can slide along the guide rod 7 and adjust according to the position of the thread sleeve to fine-tune the distance between the feed rollers 62, thereby controlling the feeding tension of the nylon fiber (nylon 6). The nylon fiber (nylon 6) is heated to a suitable temperature through the heating element to soften it and increase the stretchability of the material. The softened nylon fiber (nylon 6) is stretched by multiple roller assemblies in the stretching chamber, and the height of the roller assembly can be adjusted by the roller adjustment assembly. The bidirectional screw 4 rotates under the drive of the first driving member 8, driving the wire block 41 to move along the screw, and the main slider 43 and the auxiliary slider 45 are driven to slide on the main slider 42 and the auxiliary slider 44 through the main connecting rod 46 and the auxiliary connecting rod 47, and finally the main stretching roller 31 and the auxiliary stretching roller 32 are lifted and lowered, thereby controlling the stretching ratio and the stretching force. The stretched nylon fiber (nylon 6) is quickly cooled to room temperature through the cooling element to keep the stretched shape and complete the shaping. The material roller assembly with the same structure as the feed roller assembly is started, and the stretched and cooled nylon fiber (nylon 6) is pulled out of the material outlet to complete the entire stretching molding process.

[0041] Steps:

[0042] Feeding stage: Nylon fiber (nylon 6) is pulled into the stretching box through the feed roller assembly.

[0043] Heating and stretching stage: Nylon fiber (nylon 6) is heated to 135-140°C by a heating element to soften it and increase the stretchability of the material. The softened fiber material is then stretched by a roller assembly. The height of the roller assembly is adjusted by a roller adjustment assembly to control the stretching ratio and stretching force.

[0044] Cooling and shaping stage: The stretched fiber material passes through the cooling piece and is quickly cooled to below 25°C, so that it maintains the stretched shape and completes the shaping.

[0045] Discharging stage: The stretched and cooled nylon fiber (nylon 6) is discharged from the discharging port through the discharging roller assembly.

[0046] Embodiment 2

[0047] Fiber material: polyester fiber, specific temperature settings: heating component temperature: 120-160℃, cooling component temperature: 20-22℃.

[0048] Steps:

[0049] Feeding stage: The polyester fiber is pulled into the stretching box through the feed roller assembly.

[0050] Heating and stretching stage: The polyester fiber passes through the heating element and is heated to 120-160°C to soften it and increase the stretchability of the material. Then, the softened polyester fiber is stretched by the roller assembly. The height of the roller assembly is adjusted by the roller adjustment assembly to control the stretching ratio and stretching force.

[0051] Cooling and shaping stage: The stretched polyester fiber passes through the cooling piece and is quickly cooled to below 25°C, so that it maintains its stretched shape and completes the shaping.

[0052] Embodiment 3

[0053] Fiber material: polypropylene fiber, specific temperature settings: heating element temperature: 110-140℃, cooling element temperature: 18-20℃.

[0054] Steps:

[0055] Feeding stage: The polypropylene fiber is pulled into the stretching box through the feed roller assembly.

[0056] Heating and stretching stage: The polypropylene fiber passes through the heating element and is heated to 110-140°C to soften it and increase the stretchability of the material. Then, the softened polypropylene fiber is stretched by the roller assembly. The height of the roller assembly is adjusted by the roller adjustment assembly to control the stretching ratio and stretching force.

[0057] Cooling and shaping stage: The stretched polypropylene fiber passes through the cooling piece and is quickly cooled to below 20°C, so that it maintains its stretched shape and completes the shaping.

[0058] Discharging stage: The stretched and cooled polypropylene fiber material is discharged from the discharging port through the discharging roller assembly.

[0059] The fiber material controllable stretching forming device and method provided by the present invention can stretch the fiber material evenly and stably by setting a roller adjustment component and a feed roller component, thereby improving the overall uniformity of the elongation of the material. In Example 1, nylon fiber (nylon 6) is used as the fiber material, the temperature of the heating element is 135-140°C, and the temperature of the cooling element is set to below 25°C. The controllable stretching forming of nylon fiber (nylon 6) is successfully achieved through the device and method. In Example 2 and Example 3, polyester fiber and polypropylene fiber are used as fiber materials, respectively, and the temperatures of the heating element and the cooling element are adjusted accordingly. The controllable stretching forming of the fiber material can also be achieved through the device and method. It shows that the device and method have wide applicability and can be used for the stretching forming of a variety of fiber materials.

[0060] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0061] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fiber material controllable stretching and forming device, characterized in that: include: Stretch box (1); Two partitions (2) are installed in the stretching box (1), and the cavity inside the stretching box (1) is divided into a stretching chamber and two adjustment chambers by the two partitions (2), and the stretching chamber is located between the two adjustment chambers; Wherein, a plurality of roller assemblies are arranged in the stretching chamber, and the fiber material can be stretched by the plurality of roller assemblies; Roller adjustment components are disposed in the two adjustment chambers, and the heights of the multiple roller components can be adjusted through the adjustment components; A feed roller assembly is provided on one side of the stretching box (1), and the fiber material before stretching can be pulled by the feed roller assembly; A discharge roller assembly is provided on a side of the stretching box (1) away from the feed roller assembly, and the stretched fiber material can be pulled by the discharge roller assembly; A feed inlet and a discharge inlet are respectively provided on both sides of the stretching box (1), and the feed inlet is located on a side close to the feed roller assembly, and the discharge inlet is located on a side close to the discharge roller assembly; A heating element and a cooling element are respectively installed at the two ends of the two partitions (2) that are relatively far away from each other. The heating element is located on the side of the stretching box (1) close to the feed roller assembly, and the cooling element is located on the side of the stretching box (1) close to the discharge roller assembly. Multiple ventilation holes are opened at both ends of the two partitions (2).

2. The fiber material controllable stretching and forming equipment according to claim 1, characterized in that: The roller assembly comprises a fixed roller (3) installed between two partitions (2), and the fixed roller (3) is located on one side of the center of the partition (2), main stretching rollers (31) are arranged on both sides of the fixed roller (3), and both ends of the two main stretching rollers (31) are slidably connected to the inner wall of the partition (2), and auxiliary stretching rollers (32) are arranged on the side relatively far away from the two main stretching rollers (31), and both ends of the two auxiliary stretching rollers (32) are slidably connected to the inner wall of the partition (2).

3. The fiber material controllable stretching and forming equipment according to claim 2, characterized in that: The roller adjustment assembly comprises a bidirectional screw rod (4) installed on one side of the partition (2) through a bracket, and the bidirectional screw rod (4) is located in the adjustment chamber, both ends of the outer side of the bidirectional screw rod (4) are rotatably connected with screw blocks (41), main sliding rods (42) are installed on both sides of the bidirectional screw rod (4) through brackets, the outer side of the main sliding rod (42) is slidably connected with a main sliding block (43), and the two sides of the two main sliding rods (42) are respectively installed with auxiliary sliding rods (44), and the outer sides of the two auxiliary sliding rods (44) are slidably connected with auxiliary sliding blocks (45); A first driving member (8) for driving the bidirectional screw rod (4) to rotate is installed on the top of one side of the partition plate (2).

4. The fiber material controllable stretching and forming equipment according to claim 3, characterized in that: One side of the wire block (41) located at the top is connected to two main connecting rods (46), and the relatively distant sides of the two main connecting rods (46) are respectively connected to one side of the two main sliders (43); one side of the wire block (41) located at the bottom is connected to two secondary connecting rods (47), and the relatively distant sides of the two secondary connecting rods (47) are respectively connected to one side of the two secondary sliders (45); the two main sliders (43) and the two secondary sliders (45) are connected to the partition (2) through a connecting shaft and are respectively connected to the main stretching roller (31) and the secondary stretching roller (32); the partition (2) is provided with a plurality of adjustment grooves for the sliding of the connecting shaft.

5. The fiber material controllable stretching and forming equipment according to claim 4, characterized in that: The feed roller assembly comprises a main drive box (5) and an auxiliary drive box (51) installed on one side of the stretching box (1), and the main drive box (5) and the auxiliary drive box (51) are arranged opposite to each other. A main bidirectional screw (52) is rotatably connected inside the main drive box (5), and both ends of the outer side of the main bidirectional screw (52) are threadedly connected to main thread sleeves (53). The circumferential sides of the two main thread sleeves (53) are respectively rotatably connected to a main bevel gear (54), a driving bevel gear (55) and an auxiliary bevel gear (56). The driving bevel gear (55) is located between the main bevel gear (54) and the auxiliary bevel gear (56), and the main bevel gear (54) is meshedly connected to the auxiliary bevel gear (56) through the driving bevel gear (55).

6. The fiber material controllable stretching and forming equipment according to claim 5, characterized in that: A secondary bidirectional screw (6) is rotatably connected inside the secondary drive box (51), and both ends of the outer side of the secondary bidirectional screw (6) are threadedly connected to secondary thread sleeves (61). A sliding groove is provided on the side where the main drive box (5) and the secondary drive box (51) are relatively close to each other. Two feed rollers (62) are arranged between the main drive box (5) and the secondary drive box (51), and the two feed rollers (62) are distributed up and down. Both ends of the two feed rollers (62) are respectively connected to the secondary bevel gear (56) and the secondary thread sleeve (61) through a transmission rod.

7. The fiber material controllable stretching and forming equipment according to claim 6, characterized in that: The tops of the main drive box (5) and the auxiliary drive box (51) are both rotatably connected with gears (63), wherein the bottom of one of the gears (63) passes through the top of the main drive box (5) through a connecting rod and is connected to the top of the main bidirectional screw (52), and the bottom of the other gear (63) passes through the top of the auxiliary drive box (51) through a connecting rod and is connected to the top of the auxiliary bidirectional screw (6), and the two gears (63) are connected by a gear belt transmission; A second driving member (81) for driving the gear (63) to rotate is installed on the top of the main driving box (5).

8. The fiber material controllable stretching and forming equipment according to claim 7, characterized in that: Two guide rods (7) are installed on a side of the main drive box (5) away from the auxiliary drive box (51), and two third drive members (82) are slidably connected to the two guide rods (7), and the output ends of the two third drive members (82) are respectively connected to one side of the main bevel gear (54).

9. The fiber material controllable stretching and forming equipment according to claim 8, characterized in that: The discharge roller assembly has the same structure as the feed roller assembly.

10. The method for controllable stretching of fiber materials according to claim 9, comprising the following steps: In the feeding stage, the feeding roller assembly is started, and the gear (63) in the main driving box (5) is driven to rotate through the second driving member (81), thereby driving the main bidirectional screw (52) and the auxiliary bidirectional screw (6) to rotate synchronously. Since the outer sides of the main bidirectional screw (52) and the auxiliary bidirectional screw (6) are respectively threadedly connected with the main thread sleeve (53) and the auxiliary thread sleeve (61), and the two realize synchronous movement through the meshing relationship between the driving bevel gear (55), the main bevel gear (54) and the auxiliary bevel gear (56), Therefore, the main thread sleeve (53) and the auxiliary thread sleeve (61) will move along the axial direction of the screw rod. As the main thread sleeve (53) and the auxiliary thread sleeve (61) move, the two feed rollers (62) distributed up and down are driven to rotate through the transmission rod, thereby pulling the fiber material to be stretched into the stretching box (1). At the same time, the third driving member (82) can slide along the guide rod (7) to adjust the position of the main bevel gear (54) to fine-tune the distance between the feed rollers (62), thereby controlling the feeding tension of the fiber material; In the heating and stretching stage, the fiber material first passes through a heating element and is heated to a suitable temperature to soften it and increase the stretchability of the fiber material; The fiber material after stretching, forming and softening enters the stretching chamber and is stretched by multiple roller assemblies. The height of the roller assemblies can be adjusted by the roller adjustment assembly. The bidirectional screw (4) rotates under the drive of the first driving member (8), driving the fiber block (41) to move along the screw, and then the main slider (43) and the auxiliary slider (45) are driven to slide on the main slider (42) and the auxiliary slider (44) respectively through the main connecting rod (46) and the auxiliary connecting rod (47), and finally the main stretching roller (31) and the auxiliary stretching roller (32) are lifted and lowered, thereby controlling the stretching ratio and the stretching force. In the cooling and shaping stage and cooling and curing, the stretched fiber material passes through the cooling device and is quickly cooled to room temperature so that it maintains the stretched shape and completes the fiber shaping; In the discharging stage, the discharging roller assembly works, and the discharging roller assembly with the same structure as the feeding roller assembly starts, and drives the discharging roller to rotate through a similar driving mechanism, pulling the stretched and cooled fiber material to be discharged from the discharging port, completing the entire stretching and forming process.

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