Polyester fiber tow continuous crimping device

Abstract

The utility model provides a polyester fiber tow continuous crimping device which comprises a machine frame, a pair of crimping wheels are arranged in the machine frame, a pair of crimping cutters are arranged on one sides of the crimping wheels, a tension adjusting mechanism is arranged on the other sides of the crimping wheels, and the tension adjusting mechanism adjusts the tensile force of a fiber tow by jacking the fiber tow. The electromagnet is matched with the spring to control the ejector core to eject the fiber tow and adjust the acting force on the fiber tow, so that the tension is controlled, and the problems of breakage, looseness, slipping and the like in the curling process of the fiber tow are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical fiber processing equipment, and in particular to a continuous crimping device for polyester fiber bundles. Background Technology

[0002] A crimping machine is a key piece of equipment used to crimp fiber bundles. The crimping wheel rotates and drives the fiber bundle into the crimping box. Inside the crimping box, the fiber bundle is subjected to a certain pressure and friction, which forces it to crimp and deform, forming a specific crimp shape and degree of crimp. Then, it passes through a shaping device to perform a short-term shaping treatment on the crimped fiber bundle to maintain the stability of the crimp shape, and then it is conveyed to the next processing step.

[0003] Chinese patent CN201821725520.9 discloses a curling machine, including a frame. Two curling rollers are symmetrically fixedly installed on the frame, with the two curling rollers distributed vertically. An upper curling knife and a lower curling knife are symmetrically arranged on one side of the two curling rollers, with the upper and lower curling knives distributed vertically and corresponding to the positions of the two curling rollers, respectively. A side U-shaped plate is vertically arranged inside the frame. A first moving mechanism for horizontally moving the side U-shaped plate is provided inside the frame. A limiting mechanism for restricting the first moving mechanism is provided on the frame. The upper and lower curling knives are both fixedly connected to the side U-shaped plate through a second moving mechanism.

[0004] However, this technical solution has the following shortcomings: adjusting the crimping knife will change the tension of the filament bundle, resulting in unstable tension. When the tension is too high, the fiber is easily broken; when the tension is too low, the fiber may loosen or slip during the crimping process. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a continuous winding device for polyester fiber bundles. This device incorporates a tension adjustment mechanism, using an electromagnet and a spring to control the top core to lift the fiber bundles and adjust the force applied to the fiber bundles, thereby controlling the tension and solving problems such as breakage, loosening, and slippage during the winding process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous crimping device for polyester fiber bundles, comprising a frame, a pair of crimping wheels arranged inside the frame, a pair of crimping blades arranged on one side of the crimping wheels, and a tension adjusting mechanism arranged on the other side of the crimping wheels, the tension adjusting mechanism adjusting the tension of the fiber bundle by lifting it.

[0007] As an improvement, the tension adjustment mechanism includes a base mounted on the frame, the base having a mounting groove, and a top core disposed in the mounting groove.

[0008] As an improvement, the bottom of the top core is provided with several stepped shafts, and springs are sleeved on the stepped shafts.

[0009] As an improvement, a number of electromagnets are provided at the bottom of the mounting groove corresponding to the stepped shaft, and the lower half of the spring is sleeved on the electromagnet.

[0010] As an improvement, the top core is configured to conform to the shape of the mounting groove.

[0011] As an improvement, the top of the core is provided with an arc-shaped contact head.

[0012] As an improvement, a sensor is provided inside the contact head.

[0013] As an improvement, the frame is also provided with an air vent, which is located on the other side of the coiling knife.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) This utility model sets up a tension adjustment mechanism, which uses an electromagnet and a spring to control the top core to lift the fiber bundle, adjusts the force on the fiber bundle, and ensures that the force on each part of the fiber bundle is uniform during the curling process, thereby making the curl uniform, improving the production quality of the fiber bundle, and also improving the production efficiency.

[0016] (2) By setting the top core and the mounting groove in a square shape, the mounting groove guides the top core, ensuring that the top core remains vertical when it moves up and down, thus improving the stability of the top core.

[0017] (3) By setting up air vents, the present invention can quickly remove heat from the curled fiber bundles by blowing air, thereby cooling the fiber bundles and helping the fibers to quickly set after curling, maintain a good curled shape and curl degree, and improve the stability and consistency of curling.

[0018] In summary, this invention has the advantages of high stability and consistency in filament curling and high production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial sectional view of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the top core structure.

[0023] The attached diagrams are labeled as follows: 1. Frame; 2. Winding wheel; 3. Winding knife; 4. Tension adjustment mechanism; 41. Base; 42. Mounting slot; 43. Top core; 44. Stepped shaft; 45. Spring; 46. Electromagnet; 47. Contact head; 5. Fiber bundle; 6. Sensor; 7. Air outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Example 1

[0027] like Figures 1 to 4 As shown, this embodiment provides a continuous crimping device for polyester fiber bundle 5, including a frame 1. A pair of crimping wheels 2 are arranged inside the frame 1. A pair of crimping blades 3 are arranged on one side of the crimping wheels 2. A tension adjusting mechanism 4 is arranged on the other side of the crimping wheels 2. The tension adjusting mechanism 4 adjusts the tension of the fiber bundle 5 by lifting it.

[0028] like Figure 2 As shown, the tension adjustment mechanism 4 includes a base 41 mounted on the frame 1, a mounting groove 42 is provided on the base 41, and a top core 43 is provided in the mounting groove 42.

[0029] Understandably, the length of the mounting groove 42 is greater than the width of the production filament bundles to ensure that the top core can play a role in tension adjustment for the entire row of filament bundles on the production line.

[0030] like Figure 4 As shown, the bottom of the top core 43 is provided with a plurality of stepped shafts 44, and springs 45 are sleeved on the stepped shafts 44.

[0031] Specifically, the top of the spring 45 contacts the shoulder above the stepped shaft 44 and provides support. The elastic force generated by these sets of springs 45 is greater than the overall weight of the top core 41, and can lift the top core 41 upwards without external force.

[0032] like Figure 3 As shown, a plurality of electromagnets 46 are provided at the bottom of the mounting groove 42 corresponding to the stepped shaft 44, and the lower half of the spring 45 is sleeved on the electromagnets 46.

[0033] It is worth mentioning that the stepped shaft 44 is made of magnetic material. When the electromagnet 46 is energized, it magnetically attracts the stepped shaft 44, counteracting the spring force and moving downwards, thus reducing the tension on the wire bundle. The electromagnet 46 can change the magnetic field strength according to the control signal in a short time, quickly adjust the force on the top core, and thus respond quickly to changes in tension. It can effectively suppress instantaneous fluctuations in tension and improve the dynamic performance of tension control.

[0034] like Figure 2 As shown, the top core 43 is configured to conform to the shape of the mounting groove 42.

[0035] To ensure that the top core 43 remains vertical during the reciprocating motion of adjusting tension, it is set in a contour with the mounting groove 42, so that the mounting groove can limit and guide the top core 43, thus ensuring the stability of the top core movement.

[0036] like Figure 3 As shown, the top of the core 43 is provided with an arc-shaped contact head 47.

[0037] Here, the curved surface can contact the fiber bundle 5 to the greatest extent without interfering with its transmission or damaging the fiber bundle 5; the contact head 47 is made of anti-static material to ensure that no static electricity is generated during the friction with the fiber bundle 5, thereby improving production safety.

[0038] like Figure 3 As shown, a sensor 6 is provided inside the contact head 47.

[0039] Specifically, sensor 6 is typically a tension sensor used to measure the tension of the fiber bundle 5 in real time and convert it into an electrical signal that is fed back to the control system. The control system adjusts the magnetic force of electromagnet 46 based on the feedback of the electrical signal, thereby achieving the purpose of adjusting the tension of the top core.

[0040] like Figure 2 As shown, the frame 1 is also provided with an air vent 7, which is located on the other side of the coiling blade 3.

[0041] It is worth mentioning that blowing air on the curled fiber bundle 5 can quickly remove heat and cool the fiber bundle 5, which helps the fiber to quickly set after curling, maintain a good curl shape and curl degree, and improve the stability and consistency of the curl.

[0042] Work steps

[0043] The fiber bundle 5 is driven into the winding box by the rotation of the winding wheel 2. Inside the box, it is axially compressed, bent, and folded by the winding blade 3. During this process, the sensor 6 monitors the tension value of the fiber bundle 5 and feeds it back to the control system. The control system controls the magnetic force of the electromagnet 46 based on the feedback, changes the supporting force of the top core 43 on the fiber bundle 5, and adjusts it to a suitable tension in real time. After the fiber bundle 5 is wound, it is quickly cooled and shaped by the air blowing from the air outlet 7.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyester fiber tow continuous crimping device, comprising a frame, a pair of crimping wheels arranged in the frame, and a pair of crimping knives arranged on one side of the crimping wheels, characterized in that: a tension adjusting mechanism is arranged on the other side of the crimping wheels, the tension adjusting mechanism adjusts the tension of the fiber tow by jacking the fiber tow; the tension adjusting mechanism comprises a base mounted on the frame, a mounting groove is formed in the base, and a jack is arranged in the mounting groove; a plurality of stepped shafts are arranged at the bottom of the jack, springs are sleeved on the stepped shafts; a plurality of electromagnets are arranged at the bottom of the mounting groove corresponding to the stepped shafts, an arc-shaped contact head is arranged at the top of the jack, and a sensor is arranged in the contact head; the electromagnets are sleeved with the lower half of the springs; the jack and the mounting groove are arranged in a profiled manner; and an air port is further arranged on the frame, and the air port is located on the other side of the crimping knives. ​ ​ ​ ​ 2. The polyester fiber tow continuous crimping device according to claim 1, wherein ​ 3. The polyester fiber tow continuous crimping device according to claim 1, wherein ​ 4. The polyester fiber tow continuous crimping device according to claim 1, wherein ​

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