Single-shaft double-spindle yarn guide device adopting independent tension control

Abstract

The utility model relates to the technical field of carbon fiber production, in particular to a single-shaft double-spindle yarn guide device adopting independent tension control, which comprises a rack, a yarn guide mechanism and an independent tension control mechanism, a first cross beam and a second cross beam which are arranged in parallel are fixed to one side of the rack, the yarn guide mechanism is arranged at the free end of the first cross beam, and the independent tension control mechanism is arranged at the free end of the second cross beam. The independent tension control mechanism comprises two tension control assemblies arranged on one side of the first cross beam in parallel, each tension control assembly comprises a tension wheel and a guide-out wheel, the tension wheels and the guide-out wheels are arranged at the swing ends and the swing centers of swing frames respectively, the swing frames are driven by an air cylinder to swing, and the swing frames of the two tension control assemblies are independently controlled. The two tension control assemblies are arranged, so that single-group winding is controlled by the two tension control assemblies, each yarn is independently controlled by the independent tension control assembly, and different winding diameter tension is adjusted by adjusting output of the air cylinder so as to adapt to winding of different qualities.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber production, in particular to a single-axis double-spindle yarn guiding device adopting independent tension control. Background Art

[0002] In the production process of composite materials, yarns need to be processed and reproduced. When processing and producing carbon fiber, glass fiber and other yarns, the wound raw materials need to be unwound, guided, spread, collected and then processed.

[0003] In the synchronous winding process of two carbon fiber yarns on the coaxial double spindles, the two yarns are required to be wound on two winding drums respectively. The yarn winding process along the axial direction of the drum is realized by the reciprocating linear motion of the yarn arrangement mechanism, and then the winding operation is completed with the pressure roller pressed on the outer ring of the drum. In the coaxial winding process, the two yarns have the same winding speed, but the two yarns have different tension states. If the yarn tension is out of control, it will seriously affect the winding quality.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of implication that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a single-axis double-spindle yarn guiding device which adopts independent tension control to solve the above technical problems.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] Further, a single-axis double-spindle yarn guiding device with independent tension control includes: a frame, a yarn guiding mechanism and an independent tension control mechanism;

[0008] A first crossbeam and a second crossbeam are fixed in parallel on one side of the frame, and the first crossbeam is located above the second crossbeam; the yarn guide mechanism is arranged at the free end of the first crossbeam, and the independent tension control mechanism is arranged at the free end of the second crossbeam;

[0009] The independent tension control mechanism includes two tension control components arranged in parallel on one side of the second beam. A transition yarn guide wheel is also arranged on the other side of the second beam. Each tension control component includes a tension wheel and a guide wheel. The tension wheel and the guide wheel are respectively arranged at the swing end and the swing center of the swing frame. The swing frame is driven to swing by a cylinder, and the swing frames of the two tension control components are independently controlled.

[0010] Further, the transition yarn guide wheel is located between the two tension control components.

[0011] Furthermore, the swing frame is arranged on the second cross beam, including a base and a swing arm, and a counterweight shaft perpendicular to the second cross beam is arranged on the base, the axis of the counterweight shaft is the swing center, one end of the counterweight shaft is connected to the swing arm and the export wheel, and a counterweight piece is arranged at the other end of the counterweight shaft, and the tension wheel is arranged at the swing end of the swing arm.

[0012] Furthermore, the counterweight member includes a counterweight rod sleeved on the counterweight shaft and a counterweight block arranged at the free end of the counterweight rod.

[0013] Furthermore, a drive mounting frame is provided on one side of the second cross beam close to the base, one end of the cylinder is provided on the drive mounting frame, and the other end is connected to the swing arm.

[0014] Furthermore, a dial is provided on one side of the counterweight shaft close to the swing arm, the dial is arranged between the swing arm and the base, and a limit position component is correspondingly arranged on the dial.

[0015] Furthermore, the limit assembly includes an upper stopper and a lower stopper arranged on the upper and lower sides of the scale plate, and the angles between the lead-out wheel and the upper and lower stoppers are the same.

[0016] Furthermore, an angle sensor is provided on one side of the counterweight shaft on the swing frame to detect the swing angle of the swing arm.

[0017] Furthermore, the yarn guiding mechanism includes a first yarn guiding wheel group and a second yarn guiding wheel group arranged in parallel, the first yarn guiding wheel group is arranged at the free end of the first crossbeam, and the second yarn guiding wheel group is arranged on the side of the first yarn guiding wheel group facing the frame and is located obliquely above the tension control component.

[0018] Furthermore, the first yarn guide wheel group and the second yarn guide wheel group are both provided with two introduction wheels arranged parallel to the tension wheel. The first yarn guide wheel group is also provided with a double-groove yarn guide wheel perpendicular to the setting direction of the introduction wheel group, and the yarn is introduced into the introduction wheel from the double-groove yarn guide wheel.

[0019] The beneficial effect of the utility model is that the utility model sets two independent tension control components for use in a single-shaft double-spindle winder, so that a single group of winding is controlled by two sets of tension control components, and each yarn is individually controlled by an independent tension control component, which is more conducive to subsequent winding. Compared with the prior art, the utility model adjusts different winding diameter tensions through different tension controls to adapt to windings of different qualities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a single-axis double-spindle yarn guiding device using independent tension control in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of yarn tension control of a single-axis double-spindle yarn guide device in an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of an independent tension control component in an embodiment of the utility model;

[0024] Figure 4 A top view of an independent tension control assembly in an embodiment of the utility model;

[0025] Figure 5 for Figure 4 Sectional view in the AA direction;

[0026] Explanation of the reference numerals: 01, yarn; 10, frame; 11, first crossbeam; 12, second crossbeam; 20, yarn guiding mechanism; 21, first yarn guiding wheel group; 22, second yarn guiding wheel group; 23, introduction wheel; 24, double-groove yarn guiding wheel; 30, independent tension control mechanism; 31, tension control assembly; 311, tension wheel; 312, export wheel; 32, transition yarn guiding wheel; 33, swing frame; 331, base; 332, swing arm; 333, counterweight shaft; 334, counterweight rod; 335, counterweight block; 336, dial; 337, limit assembly; 338, angle sensor; 34, drive mounting frame; 35, cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] like Figures 1 to 5 A single-axis double-spindle yarn guiding device with independent tension control is shown, comprising: a frame 10, a yarn guiding mechanism 20 and an independent tension control mechanism 30;

[0031] A first beam 11 and a second beam 12 are fixed in parallel to one side of the frame 10, and the first beam 11 is located above the second beam 12; a yarn guide mechanism 20 is arranged at a free end of the first beam 11, and an independent tension control mechanism 30 is arranged at a free end of the second beam 12;

[0032] The independent tension control mechanism 30 includes two tension control components 31 arranged in parallel on one side of the second beam. A transition yarn guide wheel 32 is also arranged on the other side of the second beam 12. Each tension control component 31 includes a tension wheel 311 and a guide wheel 312. The tension wheel 311 and the guide wheel 312 are respectively arranged at the swing end and the swing center of the swing frame 33. The swing frame 33 is driven to swing by the cylinder 35. The swing frames 33 of the two tension control components 31 are independently controlled.

[0033] The utility model adopts a single-axis double-spindle yarn guiding device with independent tension control. This mechanism adopts a parallel yarn feeding mode to lay yarn. A single group of winding is controlled by two sets of tension control components 31. Each yarn 01 is controlled by an independent tension control component 31, which is more conducive to winding. The guide wheel 312 is installed behind the tension wheel 311 to keep the tension of the yarn 01 coming out of the tension wheel 311 constant. The tension control component 31 matches the tension of the yarn 01 with different winding diameters by adjusting the position of the swing arm 332. A proportional valve is installed in front of each cylinder 35. The tension control mode can be switched between motor control and cylinder 35 control to adapt to yarns 01 of different qualities; the motor control mode means that different winding diameters correspond to different motor output speeds, and the cylinder 35 control mode means that the motor speed is constant, and the tension of different winding diameters is adjusted by adjusting the output force of the cylinder 35.

[0034] Specific as Figure 2 As shown, the transition yarn guide wheel 32 is located between the two tension control components 31. It should be noted here that the transition yarn guide wheel 32 is arranged between the two tension control components 31, so that one of the two yarns 01 pulled out by the second yarn guide wheel group 22 is directly introduced into the tension wheel 311 at the end of the second crossbeam 12, and the other is introduced into the tension wheel 311 of another tension control component 31 through the transition yarn guide wheel 32, so as to avoid the entanglement of the two yarns 01 and improve the independent control ability of the two tension control components 31.

[0035] like Figure 3 As shown, the swing frame 33 is arranged on the second beam 12, including a base 331 and a swing arm 332. A counterweight shaft 333 perpendicular to the second beam 12 is arranged on the base 331. The axis of the counterweight shaft 333 is the swing center. One end of the counterweight shaft 333 is connected to the swing arm 332 and the export wheel 312. A counterweight piece is arranged at the other end of the counterweight shaft 333. The tension wheel 311 is arranged at the swing end of the swing arm 332.

[0036] like Figure 4 As shown, the counterweight comprises a counterweight rod 334 sleeved on a counterweight shaft 333 and a counterweight block 335 arranged at the free end of the counterweight rod 334. The installation position of the counterweight block 335 on the swing frame 33 is adjusted by the counterweight rod 334, and the counterweight block 335 balances the moment generated by the gravity of the tension wheel 311 at the other end of the swing frame 33, so that the cylinder 35 can control the tension value of the yarn 01 wound around the tension wheel 311 more accurately.

[0037] Please continue to refer to Figure 3 A driving mounting frame 34 is provided on one side of the second beam 12 close to the base 331 , one end of the cylinder 35 is provided on the driving mounting frame 34 , and the other end is connected to the swing arm 332 .

[0038] Preferably, a dial 336 is further provided on one side of the counterweight shaft 333 close to the swing arm 332, and the dial 336 is provided between the swing arm 332 and the base 331, and a limit assembly 337 is correspondingly provided on the dial 336. The limit assembly 337 includes an upper block and a lower block provided on the upper and lower sides of the dial 336, and the angle between the export wheel 312 and the upper block and the lower block is the same.

[0039] like Figure 2As shown, in the subsequent winding process, the cylinder 35 provides a constant pulling force for the tension wheel 311. When the yarn 01 becomes loose, the cylinder 35 drives the tension wheel 311 to move through the swing frame 33 and tightens the yarn 01 again. At the same time, the movement of the tension wheel 311 stores the loose yarn 01 between the tension wheel 311 and the lead-out wheel 312, and the loose yarn 01 is tightened by storing yarn. The movement of the tension wheel 311 will change the tension on the yarn 01. The limit assembly 337 corresponding to the swing frame 33 is used to prevent the swing frame 33 from being damaged by the cylinder 35 when the tension is abnormal, so that the yarn 01 can be continuously wound within the allowable tension range. When the angle sensor 338 detects that the swing frame 33 is continuously in contact with the limit assembly 337, it indicates that the tension of the yarn 01 is out of control, and early warning processing is carried out in time.

[0040] like Figure 5 As shown, an angle sensor 338 is provided on one side of the counterweight shaft 333 of the swing frame 33 to facilitate detecting the swing angle of the swing arm 332 .

[0041] like Figure 1 As shown, the yarn guiding mechanism 20 includes a first yarn guiding wheel group 21 and a second yarn guiding wheel group 22 arranged in parallel. The first yarn guiding wheel group 21 is arranged at the free end of the first beam 11, and the second yarn guiding wheel group 22 is arranged on the side of the first yarn guiding wheel group 21 facing the frame 10 and is located obliquely above the tension control component 31.

[0042] Specifically, the first yarn guide wheel group 21 and the second yarn guide wheel group 22 are both provided with two introduction wheels 23 arranged parallel to the tension wheel 311. The first yarn guide wheel group 21 is also provided with a double-groove yarn guide wheel 24 perpendicular to the setting direction of the introduction wheel 23 group. The yarn 01 is introduced into the introduction wheel 23 from the double-groove yarn guide wheel 24.

[0043] The carbon fiber yarn 01 is wound sequentially through the double-grooved yarn guide wheel 24, the introduction wheel 23, the tension wheel 311 and the output wheel 312. The direction of the yarn 01 is reversed during the transfer from the double-grooved yarn guide wheel 24 to the introduction wheel 23 to adapt to the winding. While the yarn 01 is swung and tensioned by the tension wheel 311, the positions of the introduction wheel 23 and the output wheel 312 on both sides of the tension wheel 311 remain fixed, which can avoid the influence of the reciprocating winding process on the dimensional instability of the tension wheel 311, and can also achieve the situation that the yarn 01 becomes loose during the continuous winding process by storing yarn through the tension wheel 311.

[0044] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A single-axis double-spindle yarn guide device with independent tension control, characterized in that: include: Frame, yarn guide mechanism and independent tension control mechanism; A first crossbeam and a second crossbeam are fixed in parallel on one side of the frame, and the first crossbeam is located above the second crossbeam; the yarn guide mechanism is arranged at the free end of the first crossbeam, and the independent tension control mechanism is arranged at the free end of the second crossbeam; The independent tension control mechanism includes two tension control components arranged in parallel on one side of the second beam, and a transition yarn guide wheel is also arranged on the other side of the second beam. Each of the tension control components includes a tension wheel and a guide wheel. The tension wheel and the guide wheel are respectively arranged at the swing end and the swing center of the swing frame. The swing frame is driven to swing by a cylinder, and the swing frames of the two tension control components are independently controlled.

2. A single-axis double-spindle yarn guiding device with independent tension control according to claim 1, characterized in that: The transition yarn guide wheel is located between the two tension control components.

3. A single-axis double-spindle yarn guiding device with independent tension control according to claim 2, characterized in that: The swing frame is arranged on the second cross beam, and includes a base and a swing arm. A counterweight shaft perpendicular to the second cross beam is arranged on the base, and the axis of the counterweight shaft is the swing center. One end of the counterweight shaft is connected to the swing arm and the export wheel, and a counterweight piece is arranged at the other end of the counterweight shaft. The tension wheel is arranged at the swing end of the swing arm.

4. A single-axis double-spindle yarn guiding device with independent tension control according to claim 3, characterized in that: The counterweight component comprises a counterweight rod sleeved on the counterweight shaft and a counterweight block arranged at the free end of the counterweight rod.

5. A single-axis double-spindle yarn guiding device with independent tension control according to claim 3, characterized in that: A driving mounting frame is arranged on one side of the second cross beam close to the base, one end of the cylinder is arranged on the driving mounting frame, and the other end is connected to the swing arm.

6. A single-axis double-spindle yarn guiding device with independent tension control according to claim 5, characterized in that: A dial is also provided on one side of the counterweight shaft close to the swing arm. The dial is arranged between the swing arm and the base. A limit position component is correspondingly arranged on the dial.

7. A single-axis double-spindle yarn guiding device with independent tension control according to claim 6, characterized in that: The limit assembly comprises an upper stopper and a lower stopper arranged on the upper and lower sides of the scale plate, and the angles between the guide wheel and the upper stopper and the lower stopper are the same.

8. A single-axis double-spindle yarn guiding device with independent tension control according to claim 6, characterized in that: An angle sensor is provided on the swing frame at one side of the counterweight shaft to detect the swing angle of the swing arm.

9. A single-axis double-spindle yarn guiding device with independent tension control according to claim 1, characterized in that: The yarn guiding mechanism includes a first yarn guiding wheel group and a second yarn guiding wheel group arranged in parallel, the first yarn guiding wheel group is arranged at the free end of the first crossbeam, and the second yarn guiding wheel group is arranged on the side of the first yarn guiding wheel group facing the frame and is located obliquely above the tension control component.

10. A single-axis double-spindle yarn guiding device with independent tension control according to claim 9, characterized in that: The first yarn guide wheel group and the second yarn guide wheel group are both provided with two introduction wheels arranged parallel to the tension wheel. The first yarn guide wheel group is also provided with a double-groove yarn guide wheel perpendicular to the setting direction of the introduction wheel, and the yarn is introduced into the introduction wheel from the double-groove yarn guide wheel.

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