Production process and device of PE / PET composite fiber

Abstract

The invention relates to the technical field of fiber production, in particular to a PE / PET composite fiber production process and device. Comprising a mixing tank, a feeding hopper, a supporting rod, a bottom ring, a polymerization assembly and a winding assembly, according to the invention, the following problems existing in the production process of the composite fiber in the prior art can be solved: traction, stretching, polymerization and winding of the composite fiber cannot be carried out at the same time; only composite fibers of a single model can be produced, and composite fibers of different models and purposes cannot be produced; a plurality of strands of filaments are polymerized into a single composite fiber through the polymerization assembly, and the composite fiber is conveyed to the winding assembly, so that automatic traction of the composite fiber is realized, the fiber does not need to be manually pulled to the winding assembly after being extruded out, and the workload is reduced; through mutual cooperation of the first discharging plate, the second discharging plate, the third discharging plate and polymerization holes in the bottom of the mixing tank, composite fibers with different thicknesses can be produced.

Description

Technical Field

[0001] The invention relates to the technical field of fiber production, and in particular to a production process and a device for PE / PET composite fiber. Background Art

[0002] PE / PET composite fiber is a composite material composed of polyethylene (PE) and polyethylene terephthalate (PET). PE has good flexibility and impact resistance, while PET provides higher strength and modulus. Therefore, PE / PET composite fiber not only has good mechanical properties, but also has good wear resistance and chemical stability, and is widely used. In the production process of PE / PET composite fiber, it is usually necessary to melt the raw material particles, extrude and stretch, gather and shape, and wind and collect.

[0003] In the prior art, a large number of composite fiber production devices and corresponding technical solutions are also disclosed. Among them, a Chinese patent with publication number CN117926434A discloses a composite fiber bundle production device and production method for wiping; it includes a base, a curing and oiling component, a stretching component and a shaping component, one end of the first rotating shaft is fixedly connected to an extrusion screw, the outside of the extrusion screw is provided with an extrusion box, the top of the extrusion box is provided with a feed hopper, and the other side of the extrusion box is fixedly connected to a feed pipe, the curing and oiling component includes a heating box, the top of the heating box is fixedly connected to a first temperature sensor, the other side of the heating box is fixedly connected to a traction frame, and the fixed component includes a heating plate fixedly connected to one end of the second rotating shaft.

[0004] In the working process of the above-mentioned prior art, the staff puts the thickened polyester and high-density polyethylene into the feed hopper together, starts the feeding unit to transport the mixture to the inside of the heating box for heating, and the heated composite fiber is transported to the heating plate through the traction frame, the composite spinning is oiled by the curing oiling component, the oiled composite fiber is blown and shaped by the shaping component, and the stretching component is started to stretch, wind and collect the shaped composite fiber.

[0005] However, in the process of producing composite fibers using the above-mentioned prior art, there are still the following shortcomings: 1. Although the above-mentioned prior art can realize automatic traction and stretching in the production process of composite fibers, it is not possible to simultaneously carry out traction, stretching, polymerization and winding of the composite fibers. It is also necessary to stretch them through a stretching assembly after traction. In addition, they need to be stretched and shaped before they can be wound and collected, which affects work efficiency.

[0006] 2. Different composite fibers have different diameters for different uses. However, the above-mentioned prior art can only produce composite fibers with one diameter during the production of composite fibers, and cannot produce composite fibers of different diameters according to demand, so its scope of application is relatively small.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in the conventional composite fiber production methods. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a production device for PE / PET composite fibers, including a mixing tank, wherein two feed hoppers are provided at the upper end of the mixing tank, and the two feed hoppers are both connected to the mixing tank. The bottom of the mixing tank is connected to a bottom ring through a plurality of support rods, and the plurality of support rods are all connected to polymerization components, and a plurality of winding components corresponding to the polymerization components are installed on the inner wall of the bottom ring.

[0009] The bottom of the bottom ring is connected to a bottom plate, a driving motor is installed on the upper end of the bottom plate through a motor seat, the output shaft of the driving motor is connected to a transmission shaft, the transmission shaft is located in the mixing tank, a spiral plate is sleeved on the outer wall of the transmission shaft, and the pitch of the spiral plate gradually decreases from top to bottom.

[0010] As a preferred technical solution of the present invention, a plurality of groups of extrusion plates are installed at the bottom of the mixing tank, and each group of extrusion plates is divided into a first discharge plate, a second discharge plate and a third discharge plate from top to bottom.

[0011] As a preferred technical solution of the present invention, the bottom of the mixing tank, the first discharge plate, the second discharge plate and the third discharge plate are all provided with a plurality of aggregate holes equidistantly distributed along the circumference of their axes, and the diameters of the aggregate holes on the bottom of the mixing tank, the first discharge plate, the second discharge plate and the third discharge plate gradually decrease from top to bottom.

[0012] As a preferred technical solution of the present invention, the first discharge plate, the second discharge plate and the third discharge plate are each provided with a plurality of through holes equidistantly distributed along the circumference of their axes, the diameter of the through holes is the same as the minimum diameter of the aggregate holes at the upper end of the mixing tank, and the through holes and the aggregate holes are staggered.

[0013] As a preferred technical solution of the present invention, the polymerization component includes a sliding rod sleeved on the outer wall of the support rod, the sliding rod is provided with two sliding grooves on the side close to the transmission shaft, and the upper end of the sliding rod is provided with two connecting grooves connected to the sliding grooves. A cable is slidably connected in the connecting groove and the sliding groove, and an accommodating groove is provided on the outer wall of the support rod, and a hook is slidably connected in the accommodating groove. The cable is sleeved on the hook on the side away from the transmission shaft, and a ring is formed on the side of the cable close to the transmission shaft.

[0014] As a preferred technical solution of the present invention, the polymer assembly also includes a hydraulic rod connected between the sliding rod and the bottom ring, a tension spring is connected between the upper end of the hook and the accommodating groove, and a spring sheet is installed on the outer wall of the ring.

[0015] As a preferred technical solution of the present invention, the winding assembly includes a connecting pipe installed at the bottom of the mixing tank, the connecting pipe is sleeved on the outside of the transmission shaft, a plurality of cross bars corresponding to the positions of the sleeves are installed on the outer wall of the connecting pipe, a polymer ring is installed on the side of the cross bar away from the connecting pipe, and a cross is sleeved on the outer wall of the transmission shaft and located below the connecting pipe. The four telescopic ends of the cross are commonly connected to a circular ring, and a plurality of tooth blocks equidistantly distributed along its axial direction are installed on the upper end of the circular ring.

[0016] As a preferred technical solution of the present invention, the winding assembly also includes a plurality of connecting shafts rotatably connected between the bottom ring and the connecting tube and corresponding to the positions of the polymer rings, the outer wall of the connecting shaft is sleeved with a transmission gear and a winding wheel, the transmission gear is meshed with the gear block, the outer wall of the winding wheel is connected to a bearing plate, and a plurality of needles are installed on the side of the bearing plate facing the rotation direction of the winding wheel.

[0017] As a preferred technical solution of the present invention, the polymer ring is divided into a half ring and two clamping blocks, the two clamping blocks are symmetrically distributed along the half ring, and the clamping blocks and the half ring are hinged by a torsion spring, the bottoms of the two clamping blocks are rotatably connected with hinged rods, and the two hinged rods are hinged to each other.

[0018] In addition, the present invention also provides a production process of PE / PET composite fiber, comprising the following steps: S1: Granule mixing: PE and PET granules are respectively put into two hoppers, and the PE and PET granules enter the mixing tank through the hoppers, and then the PE and PET granules are melted and stirred and mixed; S2: Composite fiber traction: The melted PE and PET are discharged from the bottom of the mixing tank and extruded into multiple strands of filaments, which are then aggregated into a single composite fiber through a polymerization assembly to achieve automatic traction; S3: Composite fiber winding: After the composite fiber is delivered to the winding assembly, the winding assembly automatically winds the composite fiber.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention can heat and melt multiple groups of raw material particles at the same time, and then simultaneously complete the stretching and pulling of multiple groups of filaments, as well as the natural cooling and shaping and automatic winding and collection during the stretching process, thereby improving production efficiency and effects.

[0020] 2. The present invention achieves uniform mixing of different materials by respectively inputting and melting PE and PET particles, and using a driving motor and a transmission shaft to drive a spiral plate for stirring and mixing; by rotating different discharge plates, the thickness of the composite fiber can be flexibly adjusted to meet the needs of different uses, thereby improving production efficiency and flexibility in material use.

[0021] 3. The present invention can realize the automatic polymerization of multiple filaments. During this process, through the cooperation of the rope and the hook, and the contraction of the ring, the multiple filaments are synchronously lowered and polymerized, thereby realizing automatic traction, stretching and cooling and shaping in the process of composite fiber polymerization, thereby reducing manual operations and improving the degree of automation and production efficiency.

[0022] Fourth, the present invention realizes automatic traction and automatic winding of composite fibers through the cooperation between the polymerization component and the winding component. This process can realize the simultaneous stretching and polymerization of the composite fibers during the traction process through the polymerization ring, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the mixing tank of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure among the extrusion plate, the first discharge plate, the second discharge plate and the third discharge plate of the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the polymer assembly of the present invention.

[0028] Figure 5 The present invention Figure 4 A partial enlarged view of point A.

[0029] Figure 6 It is a schematic structural diagram of the winding assembly of the present invention.

[0030] Figure 7 The present invention Figure 6 A partial enlarged view of point B.

[0031] In the figure, 1, mixing tank; 11, spiral plate; 12, extrusion plate; 13, first discharge plate; 14, second discharge plate; 15, third discharge plate; 16, aggregation hole; 17, through hole; 2, feed hopper; 3, support rod; 4, bottom ring; 41, bottom plate; 42, drive motor; 43, transmission shaft; 5, aggregation assembly; 50, spring sheet; 51, sliding rod; 52, sliding groove; 53, connecting groove; 54 , cable; 55, receiving groove; 56, hook; 57, ring; 58, hydraulic rod; 59, tension spring; 6, winding assembly; 61, connecting pipe; 62, cross bar; 63, polymer ring; 64, cross; 65, ring; 66, tooth block; 67, connecting shaft; 68, transmission gear; 69, winding wheel; 70, bearing plate; 71, needle; 72, half ring; 73, clamping block; 74, hinged rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 7 Embodiments of the present invention are described in detail.

[0033] The embodiment of the present application discloses a production device for PE / PET composite fibers. It should be noted that the production device for PE / PET composite fibers of the present application is mainly used in the production process of PE / PET composite fibers. In terms of technical effect, the diameter of the discharged composite fibers can be flexibly adjusted by rotating different discharge plates. In particular, during the production process, the composite fibers can be automatically aggregated and wound onto a winding wheel 69 through a hydraulic rod 58 and a cable 54 system without manual traction, thereby significantly reducing manual workload. Furthermore, the production device for PE / PET composite fibers can also realize automatic traction of the composite fibers, without the need to manually pull the fibers to the winding assembly 6 after they are extruded, thereby reducing workload.

[0034] Reference Figure 1 and Figure 2 As shown, in order to realize automatic traction of composite fibers, specifically, a production device of PE / PET composite fibers is provided in this embodiment, including a mixing tank 1, wherein two feeding hoppers 2 are provided at the upper end of the mixing tank 1, and the two feeding hoppers 2 are both connected to the mixing tank 1, and the bottom of the mixing tank 1 is connected to a bottom ring 4 through a plurality of support rods 3, and the plurality of support rods 3 are all connected to polymerization components 5, and a plurality of winding components 6 corresponding to the polymerization components 5 are installed on the inner wall of the bottom ring 4, and a bottom plate 41 is connected to the bottom of the bottom ring 4, and a driving motor 42 is installed on the upper end of the bottom plate 41 through a motor seat, and the output shaft of the driving motor 42 is connected to a transmission shaft 43, and the transmission shaft 43 is rotatably arranged on the inner top wall of the mixing tank 1, and a spiral plate 11 is sleeved on the outer wall of the transmission shaft 43, and a heating wire (not shown in the figure) is arranged inside the spiral plate 11, and the pitch of the spiral plate 11 gradually decreases from top to bottom.

[0035] In the specific implementation process, PE and PET particles are respectively put into two hoppers 2, and then the PE and PET particles enter the mixing tank 1 from the hopper 2, and the heating wire heats the spiral plate 11 to melt the PE and PET particles, and then the melted masterbatch is added to the mixing tank 1, and the drive motor 42 is started at the same time, and the output shaft of the drive motor 42 drives the transmission shaft 43 to rotate, and the transmission shaft 43 drives the spiral plate 11 to rotate. During the rotation of the spiral plate 11, the melted PE, PET and masterbatch are stirred and mixed, and the melted PE, PET and masterbatch are conveyed downward and Extrusion causes the melted PE, PET and masterbatch to be discharged from the bottom of the mixing tank 1 and extruded into multiple strands of filaments; subsequently, the multiple strands of filaments are polymerized into a single composite fiber through the polymerization component 5, and the composite fiber is transmitted to the winding component 6, which winds the composite fiber, thereby realizing automatic traction of the composite fiber. There is no need to manually traction the fiber to the winding component 6 after it is extruded, thereby reducing the workload. In addition, through the cooperation between the polymerization component and the winding component, the composite fiber can be stretched and polymerized simultaneously during the traction process of the composite fiber, thereby greatly improving the work efficiency.

[0036] In this way, multiple groups of raw material particles can be heated and melted at the same time, and then multiple groups of filaments can be stretched and pulled at the same time, and naturally cooled and formed and automatically wound and collected during the stretching process, thereby improving production efficiency and effects.

[0037] Reference Figure 2 and Figure 3 As shown, the composite fiber has different thicknesses required for different uses, so in order to adjust the diameter of the composite fiber, based on this, in this embodiment, a plurality of groups of circumferentially distributed extrusion plates 12 are installed at the bottom of the mixing tank 1, and each group of extrusion plates 12 is divided into a first discharge plate 13, a second discharge plate 14 and a third discharge plate 15 from bottom to top; a plurality of discharge plates along the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 are provided on the bottom of the mixing tank 1. There are a plurality of aggregate holes 16 equidistantly distributed along the axis 13, and the diameters of the aggregate holes 16 on the bottom of the mixing tank 1, the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 gradually decrease from top to bottom; the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 are all provided with a plurality of through holes 17 equidistantly distributed along the axis of the first discharge plate 13, and the diameter of the through holes 17 is the same as the bottom diameter of the aggregate holes 16 on the mixing tank 1, and the through holes 17 and the aggregate holes 16 are staggered.

[0038] It should be noted that, in the initial state, the aggregation holes 16 on the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 coincide with the aggregation holes 16 at the bottom of the mixing tank 1. When composite fibers of different diameters are required, the diameter of the composite fibers can be adjusted by rotating the first discharge plate 13, the second discharge plate 14 or the third discharge plate 15.

[0039] In the specific implementation process, when the first discharge plate 13, the second discharge plate 14, the third discharge plate 15 and the polymerization hole 16 at the bottom of the mixing tank 1 coincide with each other, the diameter of the composite fiber discharged from the mixing tank 1 is the same as the minimum diameter of the polymerization hole 16 of the first discharge plate 13, and the diameter of the filament is the smallest at this time, that is, the diameter of the composite fiber formed by the polymerization of the filaments is also the smallest; when the diameter of the composite fiber needs to be increased, the first discharge plate 13 is rotated so that the through hole 17 at the upper end of the first discharge plate 13 coincides with the polymerization hole 16 on the second discharge plate 14, so that the melted PE and PET in the mixing tank 1 are discharged from the polymerization hole 16 at the bottom of the mixing tank 1 after extrusion, and then discharged from the polymerization holes 16 on the third discharge plate 15 and the second discharge plate 14 in turn, and the diameter of the discharged filaments is the same as the bottom diameter of the polymerization hole 16 on the second discharge plate 14.

[0040] When the diameter of the composite fiber needs to be increased again, the first discharge plate 13 and the second discharge plate 14 are rotated at the same time, so that the through holes 17 on the first discharge plate 13 and the second discharge plate 14 coincide with the polymerization holes 16 on the third discharge plate 15, and the diameter of the filaments discharged from the mixing tank 1 is the same as the bottom diameter of the polymerization holes 16 on the third discharge plate 15; when the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 are rotated at the same time, so that the through holes 17 on the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 coincide with the polymerization holes 16 at the bottom of the mixing tank 1, the diameter of the filaments discharged from the mixing tank 1 is the same as the bottom diameter of the polymerization holes 16 of the mixing tank 1, and the diameter of the composite fiber is maximum at this time.

[0041] Through the above steps, the diameter of the composite fiber can be gradually increased, and vice versa, the diameter of the composite fiber can be gradually reduced. In addition, the required diameter of the composite fiber can be flexibly adjusted according to production requirements, thereby improving the adaptability of the present invention.

[0042] Reference Figure 2 , Figure 4 and Figure 5As shown, in order to improve the production efficiency of the composite fiber, in this embodiment, multiple composite fibers can be automatically polymerized at the same time. Based on this, in this embodiment, the polymerization component 5 includes a sliding rod 51 sleeved on the outer wall of the support rod 3, and the sliding rod 51 is provided with two symmetrically distributed sliding grooves 52 on the side close to the transmission shaft 43. The upper end of the sliding rod 51 is provided with two connecting grooves 53 connected to the sliding grooves 52. The connecting grooves 53 and the sliding grooves 52 are slidably connected with a cable 54. The cable 54 is connected end to end, and the cable 54 is away from the transmission shaft 43. One side of the moving shaft 43 slides in the sliding groove 52 and the connecting groove 53. A receiving groove 55 is opened on the outer wall of the support rod 3. A hook 56 is slidably connected in the receiving groove 55. The cable 54 is sleeved on the hook 56 on the side away from the transmission shaft 43. The cable 54 is formed on the side close to the transmission shaft 43 to form a ring 57 for gathering multiple strands of filaments. The polymerization component 5 also includes a hydraulic rod 58 connected between the sliding rod 51 and the bottom ring 4. A tension spring 59 is connected between the upper end of the hook 56 and the receiving groove 55, and a spring sheet 50 is installed on the outer wall of the ring 57.

[0043] It should be noted that the tension spring 59 always applies a corresponding tension to the hook 56, thereby ensuring that the hook 56 can be reset after sliding downward, and the spring sheet 50 always applies an elastic force to the ring 57, so that the ring 57 maintains an open ring structure when not affected by other external forces, so that after the spring sheet 50 loses the tension of the cable 54, the ring 57 slides out of the sliding groove 52 and opens; in addition, the tension of the tension spring 59 is less than the tension of the cable 54.

[0044] In the specific implementation process, after the filaments are discharged from the bottom of the mixing tank 1, they gradually descend under the action of their own gravity. When the composite fiber passes through the ring 57, the hydraulic rod 58 is started, and the telescopic end of the hydraulic rod 58 descends and drives the sliding rod 51 to slide downward along the support rod 3. The sliding rod 51 drives the cable 54 to descend synchronously. At the same time, during the descent of the cable 54, due to the limitation of the hook 56, the cable 54 cannot descend on the side close to the hook 56. During the descent of the sliding rod 51, the cable 54 slides along the sliding groove 52 and the connecting groove 53, and the diameter of the ring 57 gradually decreases, and the multiple filaments are gathered; when the ring 57 shrinks to the minimum, the hook 56 follows the cable 54 to descend synchronously, and the tension spring 59 adaptively retracts and contracts, and drives the multiple filaments to descend synchronously. During the descent of the composite fiber, it contacts the air, thereby cooling it with annular air, thereby realizing the automatic aggregation of multiple filaments and transmitting them; thereby, multiple groups of filaments can be automatically gathered at the same time without manual assistance.

[0045] After the composite fiber production is completed, the filaments at the bottom of the mixing tank 1 are cut off, and the hydraulic rod 58 drives the sliding rod 51 to move up and reset. The sliding rod 51 drives the cable 54 to move synchronously, so that the tension spring 59 gradually overcomes the tension of the cable 54 and drives the hook 56 to reset. The cable 54 and the ring 57 are reset under the action of the spring sheet 50 for reuse.

[0046] Reference Figure 2 , Figure 6 and Figure 7 As shown, in order to achieve continuous production of composite fibers, based on this, in this embodiment, the winding assembly 6 includes a connecting tube 61 installed at the bottom of the mixing tank 1, the connecting tube 61 is sleeved on the outside of the transmission shaft 43, and the outer wall of the connecting tube 61 is installed with a plurality of cross bars 62 corresponding to the position of the sleeve ring 57, and a polymer ring 63 is installed on the side of the cross bar 62 away from the connecting tube 61. The outer wall of the transmission shaft 43 is sleeved with a cross 64 located below the connecting tube 61, and the four telescopic ends of the cross 64 are commonly connected to a circular ring 65, and the upper end of the circular ring 65 is installed with a plurality of tooth blocks 66 equidistantly distributed along its axial direction; the winding assembly 6 also includes a plurality of connecting shafts 67 rotatably connected between the bottom ring 4 and the connecting tube 61 and corresponding to the position of the polymer ring 63, the outer wall of the connecting shaft 67 is sleeved with a transmission gear 68 and a winding wheel 69, the transmission gear 68 is meshed with the tooth block 66, and the outer wall of the winding wheel 69 is connected to a bearing plate 70, and a plurality of needles 71 are installed on the side of the bearing plate 70 facing the rotation direction of the winding wheel 69.

[0047] Furthermore, in the present embodiment, the polymer ring 63 is divided into a half ring 72 and two clamping blocks 73. The two clamping blocks 73 are symmetrically distributed along the half ring 72, and the clamping blocks 73 and the half ring 72 are hingedly connected by a torsion spring. The bottoms of the two clamping blocks 73 are rotatably connected to hinge rods 74, and the two hinge rods 74 are hingedly connected to each other.

[0048] It should be noted that the two torsion springs always apply opposite elastic forces to the two clamping blocks 73, so that a ring is formed between the two clamping blocks 73 and the semi-ring 72, thereby aggregating multiple composite fibers. In the initial state, the two hinged rods 74 are arranged at the same level, and the hinges of the two hinged rods 74 are mutually clamped. Through the clamping action, the two hinged rods 74 can maintain the same horizontal plane and form a complete straight rod. The two hinged rods 74 support the clamping blocks 73 to overcome the elastic force applied by the torsion springs to the clamping blocks 73, so that the two clamping blocks 73 always remain in an open state in the initial state (in Figure 7 ).

[0049] In the specific implementation process, when the sliding rod 51, the ring 57 and the composite fiber move downward, the ring 57 collides with the hinge rod 74, and the two 74 lose the clamping effect under the downward pressure of 57, and the two 73 are bent under the action of the torsion spring, so that the hinges of the two 74 rotate downward, and at the same time, after losing the support of the hinge rod 74, the two clamping blocks 73 rotate towards each other and fit each other under the elastic force of the torsion spring, so that a ring structure is formed between the two clamping blocks 73 and the semi-ring 72 and multiple filaments are clamped therein; then the sliding rod 51 drives the ring 57 and the composite fiber to continue to move downward, and the multiple filaments form a composite fiber under the aggregation of the two clamping blocks 73 and the semi-ring 72, so that the automatic aggregation of multiple composite fibers can be achieved through the mutual cooperation between the sliding rod 51, the ring 57 and the aggregation ring 63.

[0050] It should be noted that during the downward movement of the collar 57, its diameter gradually decreases. Therefore, after the collar 57 applies downward pressure to the hinge rod 74, the collar 57 shrinks to a minimum and is offset from the hinge rod 74, thereby preventing the hinge rod 74 from interfering with the continued downward movement of the collar 57.

[0051] At the same time, the transmission shaft 43 drives the cross 64, the ring 65 and the multiple gear blocks 66 to rotate synchronously during the rotation process, and the multiple gear blocks 66 drive the transmission gear 68 to rotate, and the transmission gear 68 drives the connecting shaft 67 and the winding wheel 69 to rotate synchronously. During the rotation of the winding wheel 69, the bearing plate 70 and the needle 71 are driven to rotate synchronously. When the hydraulic rod 58 drives the ring 57 and the polymerized composite fiber to descend to the outer wall of the winding wheel 69 through the sliding rod 51, the hydraulic rod 58 controls the sliding rod 51 to stop moving downward. During the rotation process, the needle 71 penetrates into the composite fiber at the bottom of the ring 57 and pulls the composite fiber downward, so that the composite fiber rotates with the needle 71 and is wound on the upper end of the winding wheel 69, and the composite fiber can be automatically pulled to the upper end of the winding wheel 69 without manual traction, which further improves automation and reduces manual workload.

[0052] Then, when a roll of composite fiber is wound, the filaments at the bottom of the mixing tank 1 are cut off, and then the wound composite fiber is taken out and packed; then a new winding wheel 69 is replaced, and the hydraulic rod 58 is started. The telescopic end of the hydraulic rod 58 moves upward, and drives the sliding rod 51, the hook 56 and the ring 57 to reset. The tension spring 59 shrinks adaptively during the rising process. At the same time, as the tension spring 59 shrinks, its tension gradually decreases. Under the elastic force of the spring sheet 50, the ring 57 slides out of the sliding groove 52 and opens. The telescopic end of the hydraulic rod 58 rises to the specified position and then stops rising, so that the sliding rod 51 is reset, and then the clamping block 73 is opened, so that the two hinged rods 74 are located on the same horizontal line. The two hinged rods 74 support the two clamping blocks 73 respectively, so as to facilitate the production of composite fiber again and carry out continuous production work, which greatly improves work efficiency.

[0053] In addition, the present invention also provides a production process of PE / PET composite fibers, comprising the following steps: S1, particle pretreatment: firstly, PET polyester is sliced, then the sliced ​​PET particles are air-dried, and then the master batch is melted and metered.

[0054] S2, particle mixing: PE and PET particles are respectively put into two hoppers 2, and then the PE and PET particles enter the mixing tank 1 from the hopper 2, the heating wire heats the spiral plate 11 to melt the PE and PET particles, and then the melted masterbatch is added to the mixing tank 1, and the drive motor 42 is started at the same time, the output shaft of the drive motor 42 drives the transmission shaft 43 to rotate, and the transmission shaft 43 drives the spiral plate 11 to rotate, and the melted PE, PET and masterbatch are stirred and mixed during the rotation of the spiral plate 11, and the melted PE, PET and masterbatch are conveyed and extruded downward.

[0055] S3. Composite fiber traction: The composite fiber has different required composite fiber thicknesses for different uses. Therefore, in this embodiment, the first discharge plate 13 is rotated so that the through hole 17 on the upper end of the first discharge plate 13 coincides with the polymerization hole 16 on the upper end of the second discharge plate 14, so that the melted PE and PET in the mixing tank 1 are discharged from the polymerization hole 16 at the bottom of the mixing tank 1 after extrusion, and then discharged from the polymerization holes 16 on the third discharge plate 15 and the second discharge plate 14 in sequence, and the discharged composite fiber has the same diameter as the minimum diameter of the polymerization hole 16 on the upper end of the second discharge plate 14; when the first discharge plate 13 and the second discharge plate 14 are rotated at the same time, the through holes 17 on the first discharge plate 13 and the second discharge plate 14 coincide with the polymerization holes 16 on the third discharge plate 15. When they overlap, the diameter of the composite fiber discharged from the mixing tank 1 is the same as the minimum diameter of the polymerization hole 16 on the third discharge plate 15; when the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 are rotated at the same time, the through holes 17 on the first discharge plate 13, the second discharge plate 14 and the third discharge plate 15 overlap with the polymerization hole 16 at the bottom of the mixing tank 1, so that the diameter of the composite fiber discharged from the mixing tank 1 is the same as the minimum diameter of the polymerization hole 16 of the mixing tank 1, and the diameter of the composite fiber is the largest at this time; when the first discharge plate 13, the second discharge plate 14, the third discharge plate 15 and the polymerization hole 16 at the bottom of the mixing tank 1 overlap, the diameter of the composite fiber discharged from the mixing tank 1 is the same as the minimum diameter of the polymerization hole 16 of the first discharge plate 13, and the diameter of the composite fiber is the smallest at this time.

[0056] After the composite fiber is discharged from the bottom of the mixing tank 1, it gradually descends under the action of its own gravity. When the composite fiber passes through the ring 57, the hydraulic rod 58 is started, and the telescopic end of the hydraulic rod 58 descends and drives the sliding rod 51 to slide downward along the support rod 3. The sliding rod 51 drives the cable 54 to descend synchronously. At the same time, during the descent of the cable 54, due to the limitation of the hook 56, the cable 54 cannot descend on the side close to the hook 56. During the descent of the sliding rod 51, the cable 54 slides along the sliding groove 52 and the connecting groove 53, and the diameter of the ring 57 gradually decreases, and multiple composite fibers are contracted. When the ring 57 shrinks to the minimum, the hook 56 follows the cable 54 to descend synchronously, and the tension spring 59 adaptively retracts and contracts, and drives multiple filaments to descend synchronously. During the descent of the composite fiber, it comes into contact with the air, thereby performing annular air cooling on it, realizing automatic aggregation of multiple filaments, and transmitting them.

[0057] S4. Composite fiber winding: When the sliding rod 51, the ring 57 and the composite fiber move downward, the ring 57 collides with the hinge rod 74, and the two 74 lose the clamping effect under the downward pressure of 57, and the two 73 are bent under the action of the torsion spring, so that the hinges of the two 74 rotate downward. At the same time, after losing the support of the hinge rod 74, the two clamping blocks 73 rotate towards each other and fit each other under the elastic force of the torsion spring, so that a ring structure is formed between the two clamping blocks 73 and the semi-ring 72 and multiple filaments are clamped therein, and then the sliding rod 51 drives the ring 57 and the composite fiber to continue to move downward, and the multiple filaments are aggregated into a composite fiber under the aggregation of the two clamping blocks 73 and the semi-ring 72, so that the automatic aggregation of multiple composite fibers can be achieved through the mutual cooperation between the sliding rod 51, the ring 57 and the aggregation ring 63.

[0058] At the same time, the transmission shaft 43 drives the cross 64, the ring 65 and the multiple gear blocks 66 to rotate synchronously during the rotation process, and the multiple gear blocks 66 drive the transmission gear 68 to rotate, and the transmission gear 68 drives the connecting shaft 67 and the winding wheel 69 to rotate synchronously. During the rotation of the winding wheel 69, the bearing plate 70 and the needle 71 are driven to rotate synchronously. When the hydraulic rod 58 drives the ring 57 and the polymerized composite fiber to descend to the outer wall of the winding wheel 69 through the sliding rod 51, the hydraulic rod 58 controls the sliding rod 51 to stop moving downward. During the rotation process, the needle 71 penetrates into the composite fiber at the bottom of the ring 57 and pulls the composite fiber downward, so that the composite fiber rotates with the needle 71 and is wound on the upper end of the winding wheel 69, and the composite fiber can be automatically pulled to the upper end of the winding wheel 69 without manual traction, which further improves automation and reduces manual workload.

[0059] Subsequently, when a roll of composite fiber is wound, the filaments at the bottom of the mixing tank 1 are cut off, and the wound composite fiber is taken out and packaged; finally, a new winding wheel 69 is replaced, and the hydraulic rod 58 drives the sliding rod 51, the hook 56 and the ring 57 to reset. At the same time, as the tension spring 59 contracts, its tension gradually decreases. Under the elastic force of the spring sheet 50, the ring 57 slides out of the sliding groove 52 and opens. The telescopic end of the hydraulic rod 58 rises to the specified position and then stops rising, so that the sliding rod 51 is reset, and then the clamping block 73 is opened, so that the two hinged rods 74 are located on the same horizontal line. The two hinged rods 74 support the two clamping blocks 73 respectively, so as to facilitate the production of composite fiber again and carry out continuous production work, which greatly improves work efficiency.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A production process for PE / PET composite fiber, characterized in that: The following steps are involved: S1. Particle pretreatment: Particle pretreatment: First, the PET polyester is sliced, then the sliced ​​PET particles are air-dried, and then the masterbatch is melted and metered; S2: Granule mixing: PE and PET granules are respectively fed into two feed hoppers (2), and the PE and PET granules flow into the mixing tank (1) along the feed hoppers (2), and then the PE and PET granules are melted and stirred and mixed; The bottom of the mixing tank (1) is connected to a bottom ring (4) via a plurality of support rods (3), and each of the plurality of support rods (3) is connected to a polymer assembly (5); S3: Composite fiber pulling: The melted PE and PET are discharged from the bottom of the mixing tank (1) and extruded into multiple strands of filaments, which are then polymerized into a single composite fiber by a polymerization assembly (5) to achieve automatic pulling; A plurality of winding assemblies (6) corresponding to the polymerizing assemblies (5) are mounted on the inner wall of the bottom ring (4); S4: Composite fiber winding: After the composite fiber is transferred to the winding assembly (6), the winding assembly (6) automatically winds the composite fiber, and then when a roll of composite fiber is wound, the filaments at the bottom of the mixing tank 1 are cut, and the wound composite fiber is taken out and packaged.

2. A PE / PET composite fiber production device, which is used to produce the PE / PET composite fiber as claimed in claim 1, the PE / PET composite fiber production device comprising a mixing tank (1), the upper end of the mixing tank (1) is provided with two feed hoppers (2), the two feed hoppers (2) are both connected to the mixing tank (1), characterized in that: The bottom of the bottom ring (4) is connected to a bottom plate (41), the upper end of the bottom plate (41) is provided with a driving motor (42) via a motor seat, the output shaft of the driving motor (42) is connected to a transmission shaft (43), the transmission shaft (43) is located in the mixing tank (1), and the outer wall of the transmission shaft (43) is sleeved with a spiral plate (11), the pitch of the spiral plate (11) gradually decreases from top to bottom; The polymerization assembly (5) comprises a sliding rod (51) sleeved on the outer wall of the support rod (3), and the winding assembly (6) comprises a connecting pipe (61) installed at the bottom of the mixing tank (1), and the connecting pipe (61) is sleeved on the outside of the transmission shaft (43).

3. The production device of a PE / PET composite fiber according to claim 2, characterized in that: A plurality of groups of extrusion plates (12) are installed at the bottom of the mixing tank (1), and each group of extrusion plates (12) is divided from top to bottom into a first discharge plate (13), a second discharge plate (14), and a third discharge plate (15).

4. The production device of a PE / PET composite fiber according to claim 3, characterized in that: The bottom of the mixing tank (1), the first discharge plate (13), the second discharge plate (14) and the third discharge plate (15) are all provided with a plurality of aggregate holes (16) equidistantly distributed along the circumference of the axis thereof, and the diameters of the aggregate holes (16) on the bottom of the mixing tank (1), the first discharge plate (13), the second discharge plate (14) and the third discharge plate (15) gradually decrease from top to bottom.

5. The production device of a PE / PET composite fiber according to claim 4, characterized in that: The first discharge plate (13), the second discharge plate (14) and the third discharge plate (15) are each provided with a plurality of through holes (17) equidistantly distributed along the circumference of their axes, the diameter of the through holes (17) being the same as the minimum diameter of the aggregation holes (16) at the upper end of the mixing tank (1), and the through holes (17) and the aggregation holes (16) are arranged in an alternating manner.

6. The production device of a PE / PET composite fiber according to claim 2, characterized in that: The polymer assembly (5) further comprises a sliding groove (52), two sliding grooves (52) are provided on the side of the sliding rod (51) close to the transmission shaft (43), two connecting grooves (53) connected to the sliding grooves (52) are provided on the upper end of the sliding rod (51), a cable (54) is slidably connected in the connecting groove (53) and the sliding groove (52), a receiving groove (55) is provided on the outer wall of the support rod (3), a hook (56) is slidably connected in the receiving groove (55), the side of the cable (54) away from the transmission shaft (43) is sleeved on the hook (56), and the side of the cable (54) close to the transmission shaft (43) forms a ring (57).

7. The production device of a PE / PET composite fiber according to claim 6, characterized in that: The polymer assembly (5) further comprises a hydraulic rod (58) connected between the sliding rod (51) and the bottom ring (4), a tension spring (59) is connected between the upper end of the hook (56) and the receiving groove (55), and a spring sheet (50) is installed on the outer wall of the collar (57).

8. The production device of a PE / PET composite fiber according to claim 2, characterized in that: The winding assembly (6) further comprises a cross bar (62), a plurality of cross bars (62) corresponding to the positions of the sleeve rings (57) are mounted on the outer wall of the connecting tube (61), a polymer ring (63) is mounted on the side of the cross bar (62) away from the connecting tube (61), a cross (64) located below the connecting tube (61) is sleeved on the outer wall of the transmission shaft (43), four telescopic ends of the cross (64) are commonly connected to a circular ring (65), and a plurality of tooth blocks (66) equidistantly distributed along the axial direction of the circular ring (65) are mounted on the upper end of the circular ring (65).

9. The production device of a PE / PET composite fiber according to claim 8, characterized in that: The winding assembly (6) further comprises a plurality of connecting shafts (67) rotatably connected between the bottom ring (4) and the connecting tube (61) and corresponding to the positions of the polymerizing rings (63); a transmission gear (68) and a winding wheel (69) are sleeved on the outer wall of the connecting shaft (67); the transmission gear (68) is meshed with the tooth block (66); a bearing plate (70) is connected to the outer wall of the winding wheel (69); and a plurality of needles (71) are installed on the side of the bearing plate (70) facing the rotation direction of the winding wheel (69).

10. The production device of PE / PET composite fiber according to claim 8, characterized in that: The polymer ring (63) is divided into a half ring (72) and two clamping blocks (73). The two clamping blocks (73) are symmetrically distributed along the half ring (72), and the clamping blocks (73) and the half ring (72) are hingedly connected via a torsion spring. The bottoms of the two clamping blocks (73) are rotatably connected to hinge rods (74), and the two hinge rods (74) are hingedly connected to each other.

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