CN217807902U - Mechanical damping device for spindle shaft of yarn withdrawing creel - Google Patents

Abstract

The utility model relates to a mechanical damping device of yarn withdrawing creel spindle, it has solved current carbon fiber precursor spool and has neglected tightly neglected pine, appears tangling, the technical problem of phenomenon of rupture between the silk bundle, and it is equipped with damping device casing, frame and the graphite tile piece more than two, graphite tile piece surface hoop is equipped with the spring, utilizes restoring force after the spring is tensile will graphite tile piece is fixed on the spindle, graphite tile piece and damping device casing in close contact with, graphite tile piece and damping device casing pass through threaded fastener and fix to the frame. The utility model discloses but wide application in carbon fiber production field.

Description

Mechanical damping device for spindle shaft of yarn withdrawing creel

Technical Field

The utility model relates to a carbon fiber production field especially relates to a move back silk creel spindle mechanical type damping device.

Background

In current carbon fiber precursor production, carbon fiber precursor spool direct mount is on withdrawing the creel spindle, no matter how big carbon fiber precursor external diameter size hardly guarantees precursor spindle focus and its central coincidence, when making the precursor spindle when the silk bundle operation order about the rotation under the driven, because spindle focus has deviated central point, thereby easily appear neglecting the slow phenomenon suddenly, the precursor that leads to withdrawing from neglects the pine bad phenomenon suddenly tightly, very easily lead to appearing tangling between operation silk bundle and the silk bundle like this, the rupture phenomenon, can lead to the fact the influence to the precursor quality. Therefore, how to ensure that the carbon fiber precursor reel can rotate at a constant speed in the process of unwinding, reduce the damage of the filament bundle during running and ensure the stable running of the yarn unwinding creel is a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

The utility model discloses a solve present carbon fiber precursor spool neglect tightly neglect the pine, appear tangling between the silk bundle, the technical problem of phenomenon of rupture, provide one kind and can guarantee the even silk creel spindle mechanical type damping device that moves back of precursor spindle rotation rate.

The utility model provides a mechanical damping device of silk creel spindle, it sets up on the spindle, is equipped with damping device casing, frame and the graphite tile piece more than two, graphite tile piece surface hoop is equipped with the spring, utilizes restoring force after the spring is tensile will graphite tile piece compresses tightly on the spindle, graphite tile piece and damping device casing in close contact with, graphite tile piece and damping device casing pass through threaded fastener and fix to the frame.

Preferably, the graphite tile is provided with a graphite tile wing, the damping device shell is provided with a notch, and the notch is in contact with the graphite tile wing and limits the graphite tile to rotate.

Preferably, the graphite tile is provided with U-shaped grooves for placing springs, the number of the U-shaped grooves is 2 or more than 2, and each U-shaped groove is internally provided with one or more than one spring.

Preferably, hooks are arranged at two ends of the spring and connected with each other, and the spring can detachably press the graphite tiles on the spindle shaft through the hooks.

The utility model has the advantages that:

the utility model discloses the setting is in the intermediate position of withdrawing the yarn creel spindle, utilize two or more graphite tiles (internal diameter size selects according to the spindle journal) to lean on spring elasticity hoop to hold tightly and withdraw the yarn creel spindle, ensure graphite tile internal surface and the inseparable laminating of the spindle journal of withdrawing the yarn creel, on the one hand play damped effect to the spindle, guarantee the rotatory in-process of precursor spindle, precursor spindle operates steadily, circumference is at the uniform velocity rotation, on the other hand prevents that the spindle overweight from leading to the spindle focus to move down in-process spindle speed and causes the influence on the quality to the silk bundle suddenly too fast, the phenomenon of neglecting can not appear suddenly. Meanwhile, the graphite pads can compensate the abrasion loss along the radial direction of the spindle, the two ends of the spring are provided with the mutually connected hooks, the spring is convenient to replace, and the damping size of the mechanical damping device of the spindle of the yarn withdrawing creel can be adjusted according to the size of the spring and the restoring force of the stretched spring.

Drawings

FIG. 1 is a front view of a mechanical damping device for a spindle of a yarn take-off creel according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged schematic view at A of FIG. 1;

fig. 4 is an enlarged schematic view of fig. 2 at B.

Description of the symbols of the drawings:

1. a spindle; 2. a spindle shaft; 3. a damping device; 4. a damping device positioning bolt; 5. graphite tile blocks; 501 graphite tile wings; 6. a spring; 7. a rolling bearing; 8. a frame.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, so that those skilled in the art can easily implement the present invention.

Example (b):

as shown in fig. 1-4, the utility model discloses be equipped with damping device 3, damping device positioning bolt 4 and frame 8, damping device 3 passes through damping device positioning bolt 4 and frame 8 fixed connection. The utility model discloses install on the spindle 2 of the bank of filaments of moving back, move back 2 free ends of spindle of the bank of filaments of spindle and load and unload spindle 1, the other end is equipped with two sets of antifriction bearing 7, and damping device 3 sets up epaxial between spindle 1 and antifriction bearing 7, and antifriction bearing 7 is in concentric state with damping device 3, ensures that the spindle free rotation is nimble not have the jam phenomenon.

Damping device 3 is equipped with two graphite tile 5 and damping device casings, and the damping device casing is equipped with base and upper cover, and graphite tile 5 is close to the position each other and is equipped with graphite tile wing 501, and graphite tile wing 501 and damping device casing contact, base are equipped with a breach and adjust well with one of them graphite tile well, and the base can restrict graphite tile wing 501 and rotate, ensures that graphite tile 5 is not rotatory along with spindle 2. Both the graphite tiles 5 and the damping device housing are fixed to the frame 8 by means of fastening bolts 4. Two graphite tiles 5 constitute a ring and surround spindle 2 radially, graphite tiles 5 surface ring has two springs 6 that have certain elasticity to install, graphite tiles 5 are equipped with U type recess fixed mounting spring 6, spring 6 both ends are equipped with the couple, two couples link each other after spring 6 stretches, make spring 6 under the effect of pretension with graphite tiles 5 taut, with spindle 2 surface contact, spring 6 makes graphite tiles 5 encircle and play damped effect in spindle 2 radially, and compensate graphite tiles 5 wearing and tearing volume, prevent that 1 off weight of spindle from leading to spindle 1 focus to move down in-process spindle 2 speed suddenly too fast and cause the influence on the quality to the silk bundle.

The damping device 3 can adopt springs 6 with different elastic forces to control the resistance of the spindle shaft 2 according to the different diameters of the precursor spindles. The graphite tile 5 can be divided into two or more pieces according to the requirement, and the number of the springs 6 can be freely selected according to the length of the graphite tile 5.

The utility model discloses an installation method:

step 1: checking whether the outer surface of the middle position of the spindle of the protofilament spindle has defects, such as groove marks, salient points and the like, and whether the surface smoothness meets the requirements that Ra3.2 is less than or equal to Ra6.4, and performing preparation work before installation after checking that the surface smoothness is not defective;

and 2, step: assembling a mechanical damping device of the spindle of the yarn withdrawing creel at the middle position after spindle inspection, firstly, tightly attaching two graphite tile blocks to the outer surface of the middle position of the spindle, preferably ensuring the uniformity of a gap between two sides of the two graphite tile blocks, then sleeving two springs in U-shaped grooves of the two graphite tile blocks, and inspecting the end surface gap between the graphite tile blocks again;

and 3, step 3: placing a shell base of a mechanical damping device of a spindle of a silk-withdrawing creel on a support right below graphite tiles, aligning and embedding the base with one of the graphite tiles, wherein the base is provided with a gap for embedding, so that the graphite tile wings and the base are tightly combined, and an upper graphite tile and a lower graphite tile are not rotated with the spindle of the spindle in the rotating process of the spindle, namely are in a static state relative to the shell;

and 4, step 4: the mechanical damping device shell upper cover of the yarn withdrawing creel spindle is placed above the graphite tile block and aligned with the base positioning bolt hole, the mechanical damping device shell (the upper cover and the base) is fixed to the lower support through the positioning screws, the spindle is rotated by a manual jigger, whether phenomena such as blockage and blocking exist or not is checked, if the phenomena do not exist, the raw yarn spindle is installed on the correct position of the spindle to be put into operation after the spindle is stressed uniformly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, since various modifications and changes will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the scope defined by the claims of the present invention shall be within the protection scope of the present invention.

Claims (4)

1. A mechanical damping device for a spindle of a yarn withdrawing creel is arranged on the spindle and is characterized by comprising a damping device shell, a frame and more than two graphite tiles, wherein springs are annularly arranged on the outer surfaces of the graphite tiles, the graphite tiles are tightly pressed on the spindle by utilizing restoring force after the springs are stretched, the graphite tiles are in close contact with the damping device shell, and the graphite tiles and the damping device shell are fixed on the frame through threaded fasteners.

2. The mechanical filament pay-off creel spindle damping device of claim 1, wherein the graphite pads are provided with graphite pad wings, and the damping device housing is provided with notches that contact the graphite pad wings and limit rotation of the graphite pads.

3. The mechanical filament-withdrawing creel spindle damping device as claimed in claim 1, wherein the graphite shoe is provided with U-shaped grooves for accommodating springs, the number of the U-shaped grooves is 2 or more than 2, and each U-shaped groove is provided with one or more than one spring.

4. A mechanical filament-withdrawal creel spindle damping device according to claim 3, wherein hooks are provided at both ends of the spring to connect with each other, and the spring detachably presses the graphite pads against the spindle by means of the hooks.

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