Crimping machine for polyester staple fiber production

Abstract

The utility model relates to the technical field of polyester staple fiber production equipment, and discloses a crimping machine for polyester staple fiber production, which comprises a case, a feed port and a discharge port are respectively formed in the end part of the case along the length direction of the case, and support rods are arranged on the two sides of the middle part in the case along the conveying direction of polyester fiber tows; the two supporting rods are arranged in parallel in the direction perpendicular to the length direction of the machine box, the ends of the supporting rods penetrate through the side wall of the machine box and extend out of the machine box, a cooling cavity is formed in each supporting rod in the axial direction of the supporting rod, a cooling box is arranged at the top of the machine box, and a cooling assembly is arranged in the cooling box. The cooling assembly comprises a heat exchange pipe arranged in the cooling box, a refrigeration rod, a water pump and a circulating water pipe connected with the heat exchange pipe and the cooling cavities of the two supporting rods, each supporting rod is sleeved with a curling roller, the curling rollers are located in the machine box and are in running fit with the corresponding supporting rods, and a driving piece for driving the curling rollers to rotate is arranged in the machine box. The crimping machine has the effect of improving the working stability of the crimping machine.

Description

Technical Field

[0001] This application relates to the technical field of staple polyester production equipment, and in particular, to a crimper for staple polyester production. Background Art

[0002] Staple polyester is a fiber obtained by re-spinning a polyester into a tow and then cutting it. After the polyester tow is stretched, the surface of the fiber is smooth and straight, without the crimpability similar to natural fibers, and the fiber cohesion is poor, which brings difficulties to textile processing. Therefore, it is necessary to mechanically crimp the polyester fiber before cutting.

[0003] The crimper is the most critical equipment on the post-processing production line of staple polyester. It is a device that crimps and deforms the polyester fiber tow during processing according to the mechanical crimping principle.

[0004] In the prior art, in order to improve the crimping effect, the polyester fiber tow needs to be heated by steam or electric hot plates before entering the crimper, so as to increase the temperature of the fiber to be crimped. Therefore, during the crimping process of the polyester fiber tow in the crimper, some broken fiber filaments are likely to be generated. The surface of these fiber filaments still retains some heat and is extremely easy to adhere to the crimping roller, resulting in a decrease in the smoothness of the crimping roller during operation, and also affecting the service life of the crimper. Moreover, during the production of staple polyester, the continuous contact between the polyester fiber tow and the crimping roller will further heat the crimping roller due to friction, thus exacerbating the adhesion of broken fibers and the breakage of fiber filaments, greatly reducing the working stability of the crimper. Summary of the Utility Model

[0005] In order to improve the working stability of the crimper, this application provides a crimper for staple polyester production.

[0006] The crimper for staple polyester production provided by this application adopts the following technical solutions:

[0007] A crimper for producing polyester staple fibers, comprising a machine case. Feed ports and discharge ports are respectively arranged at the two ends of the machine case along its length direction. On both sides of the middle part of the machine case along the conveying direction of the polyester fiber bundle, support rods are arranged. The two support rods are arranged in parallel along the direction perpendicular to the length of the machine case. The ends of the support rods penetrate through the side wall of the machine case and extend outside the machine case. And a cooling cavity is axially arranged in each support rod along its own axis. A cooling box is arranged at the top of the machine case. A cooling component is arranged in the cooling box and communicated with the cooling cavity. The cooling component includes a heat exchange tube arranged in the cooling box, a refrigerating rod inserted on the heat exchange tube, a water pump arranged in the heat exchange tube, and a circulating water pipe connecting the heat exchange tube and the cooling cavities of the two support rods. A crimper roll is sleeved on each support rod. The crimper roll is located inside the machine case and is rotationally matched with the corresponding support rod. A driving member is arranged inside the machine case. The driving member drives the two crimper rolls to rotate relatively along the conveying direction of the polyester fiber bundle.

[0008] By adopting the above technical solution, when the crimper rolls in the crimper perform the crimping work on the polyester fiber bundle by relative rotation and pressing, the cooling water circulates between the heat exchange tube in the cooling box and the circulating water pipe communicated with the cooling cavity through the pumping of the water pump. At this time, the cold water flowing through the cooling cavity takes away the heat of the crimper roll attached to the support rod through heat conduction contact, and brings the water with temperature into the heat exchange tube in the cooling box from the circulating water pipe, and is cooled by the refrigerating rod during the flowing process, and circulates reciprocally. The cooling component can effectively reduce the temperature of the crimper roll and reduce the adhesion of broken fibers, thereby improving the working stability and service life of the crimper.

[0009] Optionally, an insertion port is arranged on the side wall of the machine case close to the bottom. A storage box for collecting broken fibers is arranged in a plug-in fit at the insertion port. The storage box is arranged in a dimensionally matching manner with the inner bottom of the machine case. A hair dryer is communicated with the inner cavity at the top of the cooling box. An air inlet mesh hole is communicated with the inside of the machine case at the bottom wall of the cooling box. An air outlet filter screen is communicated with the side wall of the storage box facing the insertion port.

[0010] By adopting the above technical solution, the setting of the storage box is convenient for effectively collecting the broken fibers generated during the processing, preventing them from adhering to the crimper roll, and improving the working stability of the crimper. At the same time, the hair dryer arranged at the top of the cooling box sends air into the inside of the machine case through the air inlet mesh hole and discharges it through the air outlet filter screen on the side wall of the storage box, which helps to take away the heat inside the machine case and reduce the problem of broken fiber adhesion caused by the friction heat of the crimper roll.

[0011] Optionally, the heat exchange tube is arranged in a conical shape.

[0012] By adopting the above technical solution, after the heat exchange tubes are arranged in a conical shape, the heat exchange tubes are distributed in the vertical space. Compared with the disc tubes and straight tubes that coil in the same plane, the area for heat exchange with the air blown by the hair dryer is larger; and compared with the heat exchange tubes arranged in a tube-in-sheet pattern, it saves more materials, helps to fully transfer the cold air in the heat exchange tubes into the chassis, effectively enhances the cooling effect on the support rod and the coiling roller, reduces the adhesion of broken fibers, and thus improves the working stability and service life of the coiling machine.

[0013] Optionally, guide slopes are provided on the inner side walls of the four circumferences of the top of the storage box and face towards its inner bottom wall.

[0014] By adopting the above technical solution, the design of providing guide slopes on the inner side walls of the four circumferences of the top of the storage box and facing towards the inner bottom wall enables the broken fibers to smoothly slide along the guide slopes towards the inner bottom wall when falling into the storage box, avoiding the accumulation and blockage of broken fibers in the storage box, thereby improving the efficiency and reliability of broken fiber collection.

[0015] Optionally, guide grooves are vertically provided on the outer side walls of the chassis along the length direction of the support rod and away from each other. A limiting block is vertically slidably arranged in each guide groove. The end of the support rod located above passes through the corresponding limiting block, and a cylinder is arranged in one of the guide grooves. The piston rod of the cylinder is connected to the top wall of the limiting block and pushes the limiting block towards the direction close to the support rod below.

[0016] By adopting the above technical solution, before the coiling machine coils the polyester fiber tow, it is necessary to first draw the polyester fiber tow through between the two coiling rollers. Lift the coiling roller located above by using the cylinder, place the polyester fiber tow on the coiling roller below, and then use the cylinder to press down the coiling roller located above until the polyester fiber tow is clamped between the two coiling rollers, and then carry out the coiling work of the coiling machine, which can effectively improve the working stability of the coiling machine, reduce the situation of fiber strand breakage, reduce the generation of broken fibers, and thus improve the service life of the coiling machine.

[0017] Optionally, a first driven wheel is sleeved on the coiling roller located below, a second driven wheel meshing with the first driven gear is sleeved on the coiling roller located above, and the driving member includes a driving wheel meshing with the first driven gear and a motor for driving the driving wheel to rotate.

[0018] By adopting the above technical solution, the first driven wheel sleeved on the coiling roller located below meshes with the second driven wheel sleeved on the coiling roller located above, and through the meshing of the driving wheel in the driving member with the first driven wheel and the motor driving the driving wheel to rotate, the relative rotation of the two coiling rollers along the conveying direction of the polyester fiber tow is realized, improving the stability and efficiency of the coiling process.

[0019] Optionally, guide rollers are rotatably provided at positions near the side walls at the feed inlet. The guide rollers are vertically arranged and one is provided on each of the opposite sides of the two side walls above the feed inlet.

[0020] By adopting the above technical solution, the arrangement of the guide rollers helps to guide the polyester fiber tow into the machine box smoothly, reducing the possibility of the tow breaking due to contact friction with the side wall of the feed inlet when entering the crimper, and improving the smoothness and stability of the feeding process.

[0021] Optionally, a mobile lifting platform is provided at the bottom of the machine box.

[0022] By adopting the above technical solution, the mobile lifting platform provided at the bottom of the machine box can conveniently adjust the overall height of the crimper, which is not only convenient for the movement and installation of the equipment, but also can be flexibly adapted to production lines with different height requirements, improving the adaptability and operation convenience of the equipment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the crimper rollers in the crimper perform the crimpling work on the polyester fiber tow by relative rotation and pressing, the cooling water circulates between the heat exchange tubes in the cooling box and the circulating water pipes communicating with the cooling cavity through the pumping of the water pump. At this time, the cold water flowing through the cooling cavity takes away the heat of the crimper rollers attached to the support rods through heat conduction contact, and the water with temperature is brought into the heat exchange tubes in the cooling box from the circulating water pipes and is cooled by the refrigerating rods during the flowing process, and circulates reciprocally. The cooling component can effectively reduce the temperature of the crimper rollers, reduce the adhesion of broken fibers, and thus improve the working stability and service life of the crimper;

[0025] 2. The setting of the storage box is convenient for effectively collecting the broken fibers generated during the processing, preventing them from adhering to the crimper rollers, and improving the working stability of the crimper. At the same time, the blower provided at the top of the cooling box sends air into the machine box through the air inlet mesh holes and discharges it through the air outlet filter screen on the side wall of the storage box, which helps to take away the heat in the machine box and reduce the problem of broken fiber adhesion caused by the friction heat of the crimper rollers;

[0026] 3. After the heat exchange tubes are arranged in a conical shape, the heat exchange tubes are distributed in the vertical space. Compared with the disc tubes and straight tubes spiraling in the same plane, the area of heat exchange with the air blown by the blower is larger; and compared with the heat exchange tubes arranged in a tube-in-tube arrangement, it saves more materials, helps to fully transmit the cold air in the heat exchange tubes to the machine box, effectively enhances the cooling effect on the support rods and crimper rollers, reduces the adhesion of broken fibers, and further improves the working stability and service life of the crimper. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0028] Figure 2 It is a structural sectional view showing the connection relationship among the support rod, the circulating water pipe, and the heat exchange pipe in the embodiment of the present application.

[0029] Figure 3 It is a structural sectional view showing the connection relationship among the driving wheel, the motor, the first driven wheel, and the second driven wheel in the embodiment of the present application.

[0030] Explanation of reference numerals:

[0031] 1, chassis; 11, feed inlet; 12, discharge outlet; 13, insertion interface; 14, guiding groove; 15, guiding roller; 2, cooling box; 21, hair dryer; 22, air inlet mesh hole; 3, mobile lifting table; 4, storage box; 41, air outlet filter screen; 42, handle; 5, support rod; 51, cooling cavity; 6, lifting member; 61, limiting block; 62, cylinder; 7, cooling assembly; 71, heat exchange pipe; 72, refrigerating rod; 73, water pump; 74, circulating water pipe; 8, coiling roller; 81, first driven wheel; 82, second driven wheel; 9, driving member; 91, driving wheel; 92, motor. Detailed implementation manners

[0032] The following further Figures 1-3 describes the present application in detail with reference to the attached drawings.

[0033] The embodiment of the present application discloses a coiling machine for producing polyester staple fiber.

[0034] Referring to Figures 1 to 3 , a coiling machine for producing polyester staple fiber includes a chassis 1. Feed inlets 11 and discharge outlets 12 are respectively provided at the two ends of the chassis 1 along its own length direction. An insertion interface 13 is provided on the side wall of the chassis 1 near the bottom. A cooling box 2 is fixedly arranged on the top of the chassis 1, and a mobile lifting table 3 is fixedly arranged at the bottom. A storage box 4 with a matching size is inserted at the insertion interface 13. On both sides of the middle part of the chassis 1 along the conveying direction of the polyester fiber bundle, there are support rods 5. The two support rods 5 are arranged in parallel along a direction perpendicular to the length direction of the chassis 1. The end of the lower support rod 5 fixedly penetrates the side wall of the chassis 1 and extends outside the chassis 1, while the end of the upper support rod 5 penetrates the side wall of the chassis 1 and is slidably arranged vertically on the chassis 1. A lifting member 6 for controlling the vertical sliding of the support rod 5 is arranged on the chassis 1. A cooling cavity 51 is axially opened in each support rod 5 along its own axis. A cooling assembly 7 communicating with the cooling cavity 51 is arranged in the cooling box 2. A coiling roller 8 is sleeved on each support rod 5. The coiling roller 8 is located inside the chassis 1 and is rotationally matched with the corresponding support rod 5. A driving member 9 is arranged inside the chassis 1.

[0035] Referring to Figures 1 to 3, before the crimper crimps the polyester fiber tow, it is necessary to draw the polyester fiber tow through between the two crimping rollers 8 first. Therefore, the lifting member 6 is used to lift the upper crimping roller 8 first, and then the polyester fiber tow is placed on the lower crimping roller 8. After that, the lifting member 6 presses down the upper crimping roller 8 until the polyester fiber tow is clamped between the two crimping rollers 8. Then, the driving member 9 is used to drive the crimping roller 8 to perform the crimping work; and when the crimping roller 8 in the crimper performs the crimping work on the polyester fiber tow by relative rotation and pressing, the cooling assembly 7 is used to reduce the temperature of the crimping roller 8 during the crimping work, reduce the adhesion of broken fibers, and collect the broken fibers through the storage box 4.

[0036] Refer to Figure 1 and Figure 2 , guide grooves 14 are vertically opened on the outer side walls of the chassis 1 along the length direction of the support rods 5 away from each other. In this embodiment, the lifting member 6 includes a limit block 61 and a cylinder 62. One limit block 61 is slidably arranged vertically corresponding to each guide groove 14. The end of the upper support rod 5 passes through the corresponding limit block 61, and the cylinder 62 is arranged in one of the guide grooves 14. The cylinder body of the cylinder 62 is fixedly arranged on the inner top wall of the guide groove 14, and its piston rod is fixedly connected to the top wall of the limit block 61 and pushes the limit block 61 towards the direction close to the lower support rod 5.

[0037] Refer to Figure 3 , the crimping roller 8 is located inside the chassis 1. Gears are sleeved on the same-side ends of the two crimping rollers 8 close to the inner side wall of the chassis 1. Among them, a first driven wheel 81 is fixedly sleeved on the lower crimping roller 8, and a second driven wheel 82 meshing with the first driven gear is fixedly sleeved on the upper crimping roller 8. In this embodiment, the driving member 9 includes a driving wheel 91 and a motor 92. The motor 92 is fixedly arranged on the inner side wall of the chassis 1. The driving wheel 91 is meshed with the first driven wheel 81 and is fixedly sleeved on the output shaft of the motor 92.

[0038] Refer to Figure 1 and Figure 2 , the cooling assembly 7 includes a heat exchange tube 71, a refrigerating rod 72, a water pump 73 and a circulating water pipe 74. The heat exchange tube 71 is a rigid water pipe, which is conically arranged and coiled in the cooling box 2. Its pipe end is fixedly penetrated through the side wall of the cooling box 2. The circulating water pipe 74 is a flexible water pipe, which connects the water inlet pipe of the heat exchange tube 71 in parallel with the rod ends of the two support rods 5 on the same side and fixedly communicates with the cooling cavities 51 of the two support rods 5. The refrigerating rod 72 is fixedly inserted on the heat exchange tube 71, and the water pump 73 is fixedly arranged in series in the heat exchange tube 71.

[0039] Refer to Figure 1 and Figure 2The top of the cooling box 2 is connected to the inner cavity and a hair dryer 21 is fixedly installed. The bottom wall of the cooling box 2 is connected to the inside of the chassis 1 and an air inlet mesh 22 is installed. The side wall of the storage box 4 facing the plug interface 13 is connected to a fixed air outlet filter 41.

[0040] Reference Figure 1 and Figure 2 The inner side walls around the top of the storage box 4 are all provided with guiding inclined surfaces toward the inner bottom wall thereof, and a handle 42 is fixedly provided on the outer side wall thereof facing away from the chassis 1 .

[0041] Reference Figure 1 In order to reduce the possibility of filament bundle breakage during the feeding process, a guide roller 15 is provided near the side wall of the feed port 11. The guide roller 15 is located on the opposite sides of the two side walls of the feed port 11 and is vertically rotatable on the side wall of the chassis 1.

[0042] The implementation principle of a crimping machine for producing polyester staple fibers in the embodiment of the present application is as follows: before the crimping machine crimps the polyester fiber bundle, the polyester fiber bundle needs to be pulled through between the two crimping rollers 8 first, so the upper crimping roller 8 is first lifted by the cylinder 62, and then the polyester fiber bundle is placed on the lower crimping roller 8, and then the upper crimping roller 8 is pressed down by the cylinder 62 until the polyester fiber bundle is clamped between the two crimping rollers 8, and then the driving motor 92 is operated to rotate the meshing gears, thereby driving the crimping roller 8 to crimp;

[0043] When the crimping roller 8 in the crimping machine crimps the polyester fiber bundle by relative rotation and pressing, cooling water is pumped and circulated between the heat exchange tube 71 in the cooling box 2 and the circulating water tube 74 connected to the cooling chamber 51 by the water pump 73. At this time, the cold water flowing through the cooling chamber 51 takes away the heat of the crimping roller 8 on the support rod 5 through heat conduction contact, and brings the warm water from the circulating water tube 74 into the heat exchange tube 71 in the cooling box 2. During the flow, it is cooled by the cooling rod 72 and circulates back and forth. Finally, the broken fibers generated by the crimping work are collected using the storage box 4 for centralized treatment.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crimper for producing polyester staple fiber, characterized in that , including a chassis (1), end portions of the chassis (1) along its own length direction are respectively provided with a feed inlet (11) and a discharge outlet (12), two sides of the middle part of the chassis (1) along the conveying direction of the polyester fiber filament bundle are provided with support rods (5), the two support rods (5) are arranged in parallel along a direction perpendicular to the length direction of the chassis (1), ends of the support rods (5) penetrate through the side wall of the chassis (1) and extend to the outside of the chassis (1), and a cooling cavity (51) is axially formed in each support rod (5) along its own axis, a cooling box (2) is arranged at the top of the chassis (1), a cooling assembly (7) is arranged in the cooling box (2) and communicated with the cooling cavity (51), the cooling assembly (7) includes a heat exchange tube (71) arranged in the cooling box (2), a refrigerating rod (72) inserted on the heat exchange tube (71), a water pump (73) arranged in the heat exchange tube (71), and a circulating water pipe (74) connecting the heat exchange tube (71) and the cooling cavities (51) of the two support rods (5), a coiling roller (8) is sleeved on each support rod (5), the coiling roller (8) is located inside the chassis (1) and is rotationally matched with the corresponding support rod (5), and a driving member (9) is arranged inside the chassis (1), and the driving member (9) drives the two coiling rollers (8) to rotate relatively along the conveying direction of the polyester fiber filament bundle.

2. The crimper for producing polyester staple fiber according to claim 1, wherein , an insertion port (13) is formed in the side wall of the chassis (1) near the bottom, a storage box (4) for collecting broken fibers is inserted and matched at the insertion port (13), the storage box (4) is dimensionally matched with the inner bottom of the chassis (1), a hair dryer (21) is communicated with the inner cavity at the top of the cooling box (2), an air inlet mesh hole (22) is communicated with the inside of the chassis (1) at the bottom wall of the cooling box (2), and an air outlet filter screen (41) is communicated with the side wall of the storage box (4) facing the insertion port (13).

3. The crimper for producing polyester staple fiber according to claim 2, wherein , the heat exchange tube (71) is arranged in a conical shape.

4. A crimper for producing polyester staple fiber according to claim 2, wherein , guide inclined surfaces are formed on the inner side walls around the top of the storage box (4) and face the inner bottom wall of the storage box (4).

5. The crimper for producing polyester staple fiber according to claim 1, characterized in that , guide grooves (14) are vertically formed on the outer side walls of the chassis (1) along the length direction of the support rods (5) and away from each other, a limiting block (61) is vertically slidably arranged in each guide groove (14), the end of the upper support rod (5) penetrates through the corresponding limiting block (61), and a cylinder (62) is arranged in one of the guide grooves (14), a piston rod of the cylinder (62) is connected to the top wall of the limiting block (61) and pushes the limiting block (61) towards the direction close to the lower support rod (5).

6. A crimper for producing polyester staple fiber according to claim 3, characterized in that , a first driven wheel (81) is sleeved on the lower coiling roller (8), a second driven wheel (82) meshing with the first driven gear is sleeved on the upper coiling roller (8), the driving member (9) includes a driving wheel (91) meshing with the first driven gear and a motor (92) driving the driving wheel (91) to rotate.

7. The crimper for producing polyester staple fiber according to claim 1, characterized in that , A guiding roller (15) is rotatably arranged at a position near the side wall at the feeding port (11), and the guiding roller (15) is vertically arranged and one is arranged on each of the opposite sides of the two side walls of the feeding port (11).

8. A crimper for producing polyester staple fiber according to claim 1, characterized in that , A mobile lifting platform (3) is arranged at the bottom of the chassis (1).

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