CN218629371U - Fiber fluffing amount testing device - Google Patents

Abstract

The utility model discloses a fibre volume of playing a mao testing arrangement, concretely relates to combined material carbon fiber silk bundle process test technical field, including support body and the fibre unwinding mechanism that sets gradually on the support body, fibre guiding mechanism, mechanism and fibre winding mechanism are collected to the volume of broken filament, the fibre silk bundle of fibre unwinding mechanism release passes through fibre guiding mechanism and expandes, then collect the broken filament that the mechanism produced by the volume of broken filament, the finished product is twined through fibre winding mechanism to last fibre silk bundle, fibre guiding mechanism includes two at least guider, guiding device includes the seal wire round bar, a pedestal, base mounting and seal wire round bar mounting, it can make the base fixed or remove on the support body to adjust the base mounting, it can make the seal wire round bar at the base internal rotation or fixed to adjust seal wire round bar mounting. The utility model discloses a test the fluff volume of fibre silk bundle, can be more comprehensive obtain the factor that influences the fibre silk bundle fluff volume.

Description

Fiber fluffing amount testing device

Technical Field

The utility model relates to a combined material carbon fiber tow process test technical field especially relates to a fibre volume of raising hair testing arrangement.

Background

Carbon fibers have been widely used in military fields such as aerospace and civil fields such as civil construction and sports equipment as a composite material capable of reinforcing a resin matrix with high performance. The carbon fiber belongs to a brittle material, the carbon fiber tows are easy to generate some broken filaments and broken lumps due to the breakage of partial fibers in the production process, the fiber tows generating the broken filaments cannot completely soak resin in the carbon fiber gumming and winding stages, so that the wettability of the fiber tows is poor, the broken filaments are more likely to form lumps, the agglomerated broken filaments enter a winding layer and stress concentration is caused, the defects of the appearance and quality uniformity of the carbon fiber are caused, and the comprehensive performance of the formed fiber reinforced resin-based high-performance composite material is adversely affected. In addition, broken filaments generated in the process of winding the composite material can affect the health of researchers, and the broken filaments entering electrical equipment such as a winding machine can cause equipment faults such as electric leakage and the like.

The reasons for the carbon fiber to generate broken filaments mainly include two points: firstly, the defects of the protofilament cause the local fracture of the fiber in the pre-oxidation and carbonization stages to generate broken filaments; secondly, in the production process or the transportation process of the carbon fiber, when the fiber tows are dragged, the local tension is too large, so that the damage is caused; when carbon fiber tows spread between the guide wire round rods, the friction force between the carbon fiber tows and the guide wire round rods, the winding speed and other process factors can cause the fiber tows to generate fuzzing and break, especially the phenomenon of domestic carbon fibers is more serious, and the mechanical property exertion of the fibers and the appearance of a winding forming product are seriously influenced.

The method has the advantages that the fluffing amount of the carbon fiber can be measured, so that the continuity and the integrity of the fiber tows can be effectively evaluated, the applicability of the carbon fiber tows to the subsequent processing technology can be analyzed, and scientific basis and guidance are provided for development, improvement and stable production of the carbon fiber and material selection of downstream use units. At the early stage, the fluffing amount of the carbon fiber is generally qualitatively detected in the preparation process of the composite material by adopting an visual inspection method at home and abroad, but the error of the visual inspection method is larger. With the increasing development of domestic carbon fibers, some methods or devices for testing the fuzzing quantity of the carbon fibers are provided in the industry, but the testing devices and the testing methods have single functions and are not uniform in standard, and the influence of fiber winding forming process factors on the fuzzing quantity is difficult to effectively evaluate.

The existing testing device does not consider that the material, size, arrangement angle and movement form of the guide wire round rod cause broken filaments of carbon fibers in the production process or the transportation process, so that the obtained factors influencing the wear resistance of fiber tows are inaccurate. In addition, the weights are adopted to apply tension to the fiber tows, because the specifications of the weights are fixed, a large number of weights need to be prepared for applying different tensions, in the moving process of the fiber tows, the weights easily fall off, researchers can be seriously injured, and the fallen weights are collided to cause inaccurate tension provided in the testing process; the influence of the fiber infiltration state on the fiber fluff quantity in the actual winding process is not considered; the fact that the winding mechanism always winds the fibers at the same position during testing is not considered, and the fibers are highly stacked, so that the collection of the amount of the wool is influenced.

Therefore, it is necessary to measure the fuzzing amount of the fiber from the aspects of the material, size, arrangement angle, motion form and the like of the round guide wire rod to obtain the factors influencing the wear resistance of the fiber, thereby improving the winding process and the winding equipment to reduce the generation of the fuzzing amount.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fibre volume testing arrangement that rises to solve the problem that above-mentioned prior art exists, can change material, size, range angle and the motion form of seal wire round bar and come to test the volume of raising of fibre silk bundle, and then more comprehensive obtains the influence to fibre silk bundle volume that rises.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a fibre plays gross testing arrangement, including the support body and fibre unwinding mechanism, fibre guiding mechanism, the collection mechanism of the gross of the silk and fibre winding mechanism that set gradually on the support body, fibre unwinding mechanism is used for releasing the fibre silk bundle, fibre guiding mechanism is used for will leaving the fibre silk bundle of fibre unwinding mechanism expandes, the gross of the silk is collected the mechanism and is used for collecting the silk that comes from the fibre silk bundle of fibre guiding mechanism, process the fibre silk bundle of the collection mechanism of the gross of the silk passes through fibre winding mechanism twines, fibre guiding mechanism includes two at least first guider, first guider includes first seal wire round bar, first base mounting and first round bar mounting, first base can connect with moving, first base mounting can fix the base is in relative position on the support body, first seal wire round bar at least one end can with first base is connected and can first base internal rotation, first seal wire round bar mounting can make first seal wire round bar with first seal wire base relative fixation.

Preferably, the frame body includes an insertion plate, a channel is formed in the insertion plate, the first base is connected with the channel and can slide along the channel, so that the height difference and the angle between two adjacent first guide devices are changed, the first base has a first bearing, at least one end of the guide wire round rod penetrates through the first bearing, the first base fixing part includes a base fastening bolt, the base fastening bolt penetrates through the first base and the insertion plate and is in threaded connection with a nut, the distance between the head of the base fastening bolt and the nut is adjusted to enable the first base to be fixed or movable on the insertion plate, the first guide wire round rod fixing part includes a guide wire round rod fastening bolt, the guide wire round rod fastening bolt is in threaded connection with the circumferential surface of the first bearing, the first guide wire round rod is relatively fixed with the first bearing when the tail of the guide wire round rod fastening bolt is in tight contact with the circumferential surface of the first bearing, and the first guide wire round rod rotates in the first bearing when the tail of the guide wire round rod fastening bolt is in clearance with the circumferential surface of the first bearing.

Preferably, still include tension control mechanism, tension control mechanism with fibre unwinding mechanism fixed connection, fibre unwinding mechanism is including unreeling a yarn section of thick bamboo and unreeling the axle, it can fix to unreel a yarn section of thick bamboo on the axle, tension control mechanism includes magnetic powder brake and control box group, magnetic powder brake with unreel axle fixed connection and can provide tension to the fibre silk bundle that unreels on the yarn section of thick bamboo, control box group can control the brake magnetic provides the tension size of fibre silk bundle.

Preferably, the fiber guiding mechanism further comprises at least two second guiding devices, each second guiding device comprises a second guiding round rod, a second base fixing part and a second guiding round rod fixing part, the second base is fixedly connected with the frame body through the second base fixing part, at least one end of the second guiding round rod can be connected with the second base and can rotate in the second base, the second guiding round rod fixing part can enable the second guiding round rod and the second base to be relatively fixed, and the fiber tows can enter the infiltration box from one end of the opening of the infiltration box and then pass through the infiltration rod bottom after passing through the infiltration rod, and then leave the infiltration box through the infiltration rod bottom.

Preferably, the area of the horizontal cross section of the infiltration tank from top to bottom is smaller and smaller, the heating mechanism adopts water bath heating, the extrusion mechanism comprises two rollers, the rollers are rotatably connected with the infiltration tank, and fiber tows pass through the two rollers.

Preferably, the broken filament volume collection mechanism includes box body and adjustment mechanism, the bottom plate of box body with insert board fixed connection and can adjust the box body is in insert the position on the board, be filled with in the box body and adsorb piece, lower adsorb piece and clamp plate, go up adsorb the piece with can pass the fibre silk bundle and collect the broken filament of fibre silk bundle between the lower adsorb piece, the clamp plate is located go up the adsorb piece top, adjustment mechanism passes the box body top surface stretches into the box body is inside and with the clamp plate contact, adjusts adjustment mechanism makes the clamp plate can with go up the adsorb piece compress tightly in on the lower adsorb piece.

Preferably, a pressure sensor is installed at the bottom of the pressure plate.

Preferably, the fibre winding mechanism includes screw rod mechanism and rolling yarn section of thick bamboo, screw rod mechanism includes motor, screw lead screw, silk mouth, the silk mouth is along being on a parallel with the axis direction sliding connection of screw lead screw in on the support body, the silk mouth with screw lead screw threaded connection just can follow screw lead screw axial displacement, the motor can control the slew velocity of screw lead screw, the rolling yarn section of thick bamboo is located screw rod mechanism rear end is used for the winding to come from the fibre silk bundle of screw rod mechanism.

Preferably, the filament nozzle is connected with a tension sensor, and the tension sensor can detect the tension of the fiber tows and transmit the tension to the control box group.

Preferably, the winding bobbin is connected with a winding machine, and the winding machine adjusts the rotating speed through a rotating speed control box, so that the winding speed of the fiber tows on the winding bobbin is controlled.

The utility model discloses for prior art gain following technological effect:

the utility model provides a fibre plays gross testing arrangement, through setting gradually the fibre unwinding mechanism on the support body, fibre guiding mechanism, mechanism and fibre winding mechanism are collected to the gross yarn volume is to the friction and wear experiment simulation of fibre silk bundle winding in-process, can expand fibre silk bundle through the seal wire round bar on the fibre guiding mechanism, the test of the fluff volume of fibre silk bundle of being convenient for, arrestment mechanism can change the position of seal wire round bar, the difference in height and the angle through changing two adjacent seal wire round bars come to test fibre silk bundle play gross, arrestment mechanism can change the motion state of seal wire round bar, can test the fluff volume of fibre silk bundle under seal wire round bar quiescent condition and rolling state, can obtain the damage mechanism of fibre silk bundle in winding process and the change law of correlation performance through above test, make the prejudgement to the fibre damage scope that different winding processes caused before actual winding, provide the foundation for winding process parameter optimization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a fiber fuzz amount testing apparatus according to example 1;

FIG. 2 is a cross-sectional view of the fiber guiding mechanism, the infiltrating mechanism, the wool amount collecting mechanism structure and the screw mechanism of FIG. 1;

FIG. 3 is a front view of a fiber fuzz testing apparatus;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a left side view of FIG. 3;

FIG. 6 is a right side view of FIG. 3;

FIG. 7 is a schematic view of a guide device in the fiber fluffing amount testing device

FIG. 8 is a schematic view of the structure of a bearing, a bearing fastening bolt, a guide wire round bar fastening bolt, and a portion of a guide wire round bar;

FIG. 9 is a schematic view of the structure of the infiltration mechanism in the fiber fuzzing amount testing apparatus;

FIG. 10 is a schematic view of a fuzz quantity collecting mechanism in the fiber fuzz quantity testing device;

FIG. 11 is a front view of the amount of fuzz collection mechanism;

fig. 12 is a schematic structural view of a threaded lead screw and a screw nozzle.

In the figure: 1-a frame body; 2-a fiber unwinding mechanism; 21-unwinding a yarn drum; 3-a fiber guide mechanism; 31-a first guide wire round rod; 32-a first bearing; 33-a first base; 34-a first base fixture; 35-a first guide wire round rod fixing piece; 4-a broken filament quantity collecting mechanism; 41-box body; 42-an adjustment mechanism; 43-box bottom plate; 44-a platen; 45-upper adsorption sheet; 46-a lower absorbent sheet; 5-a fiber winding mechanism; 51-a threaded screw; 52-a silk mouth; 53-an electric machine; 54-a rotating speed control box; 55-winding a yarn drum; 56-three-jaw chuck; 57-orientation bar; 58-a tension sensor; 6-a tension control mechanism; 61-magnetic particle brake; 62-a control box group; 7-a soaking mechanism; 71-a soaking box; 72-infiltrating rod; 73-a heating mechanism; 74-an extrusion mechanism; 8-an insert plate; 9-a channel; 10-fiber tow.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a fibre volume testing arrangement that rises to solve the problem that prior art exists, can change material, size, range angle and the motion form of seal wire round bar and come to test the volume of raising of fibre silk bundle, and then more comprehensive obtains the influence to fibre silk bundle volume that rises.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1 to 7, this embodiment provides a fiber raising amount testing device, which includes a frame body 1, and a fiber unwinding mechanism 2, a fiber guiding mechanism 3, a filament amount collecting mechanism 4, and a fiber winding mechanism 5, which are disposed on the frame body 1, where the fiber unwinding mechanism 2 is configured to release a fiber bundle, the fiber guiding mechanism 3 is configured to unwind the fiber bundle leaving the fiber unwinding mechanism 2, the filament amount collecting mechanism 4 is configured to collect filaments of the fiber bundle coming from the fiber guiding mechanism 3, the fiber bundle passing through the filament amount collecting mechanism 4 is wound by the fiber winding mechanism 5 to form a finished product, the fiber guiding mechanism 3 includes at least two first guiding devices, the first guiding devices include a first guide round rod 31, a first base 33, a first base fixing member 35, and a first guide round rod fixing member 34, at least one end of the first guide round rod 31 is connected to the first base 33, the first base 33 can be movably connected to the frame body 1, the first guide wire round rod fixing part 34 is adjusted to enable the first guide wire round rod 31 to rotate or be fixed on the first base 33, so that the movement mode of fiber tows on the first guide wire round rod 31 is controlled, the fiber tows pass through the first guide wire round rod 31 to simulate the winding process and unfold the fiber tows, the fiber tows are guaranteed not to be folded and twisted so as to enable the fiber tows and the guide wire round rod to be in full contact, the fiber tows unfold on the first guide wire round rod 31 to expose the wool inside the fiber tows, therefore, the effective wool raising quantity generated by friction between the fiber tows and the first guide wire round rod 31 can be obtained, the damage mechanism and the change rule of related performance of the fiber tows in the winding process can be obtained through multiple tests, and the fiber damage ranges caused by different winding processes are pre-judged before actual winding, and a basis is provided for the optimization of winding process parameters.

In the embodiment, the frame body comprises an insertion plate 8, a channel 9 is formed in the insertion plate 8, the guide device comprises a first guide device and a second guide device, the first guide device is fixedly connected with the insertion plate, a first base 33 of the first guide device is connected with the channel 9 and can slide along the channel 9, so that the height difference and the angle of two adjacent guide devices are changed, and the influence of the height difference of different guide devices and the angle difference between the two guide devices on the widening of the fiber tows can be tested; as shown in fig. 8, the first base 33 has a first bearing 32, at least one end of the guide wire round rod 31 passes through the first bearing 32, the first guide wire round rod fixing member 34 includes a guide wire round rod fastening bolt, the guide wire round rod fastening bolt is in threaded connection with the circumferential surface of the first bearing 32, when the tail portion of the guide wire round rod fastening bolt is screwed up and tightly contacts with the circumferential surface of the first bearing 32, the first guide wire round rod 31 is relatively fixed with the first bearing 32, and when the guide wire round rod fastening bolt is loosened, the first guide wire round rod 31 can rotate in the first bearing 32 when the tail portion of the guide wire round rod fastening bolt has a gap with the circumferential surface of the first bearing 32, so as to realize a sliding friction or rolling friction test between the fiber bundle and the guide wire round rod 31, in this embodiment, both ends of the guide wire round rod 31 respectively pass through the first bearings 32, avoid receiving great tension at the fibre silk bundle, the bending takes place for seal wire round bar 31, and when seal wire round bar 31 when first bearing 32 internal rotation, seal wire round bar 31 both ends all can reduce the fibre silk bundle rocking of removing the in-process production with first bearing 32 is fixed, the device is more steady, first base mounting 35 includes base fastening bolt, base fastening bolt passes first base 33 and inserts board 8 and with nut threaded connection, swivel nut, the head that changes base fastening bolt can make first base 33 fixed or remove on inserting board 8 with the distance of nut, dismantle bearing fastening bolt and can also change the seal wire round bar 31 of different materials and diameter, thereby can realize the sliding friction or the rolling friction test between the seal wire round bar 31 of fibre silk bundle and different materials and diameter.

In this embodiment, the fiber fluffing amount testing device further comprises a tension control mechanism 6, the tension control mechanism 6 is fixedly connected with the fiber unwinding mechanism 2, the fiber unwinding mechanism 2 comprises an unwinding bobbin 21 and an unwinding shaft, the unwinding bobbin 21 is fixed on the unwinding shaft to prevent the bobbin from slipping during tension testing, the tension control mechanism 6 comprises a magnetic powder brake 61 and a control box group 62, the magnetic powder brake 61 is fixedly connected with the unwinding shaft and can provide torque to control the tension of the fiber tows on the unwinding bobbin 21, the control box group 62 can control the tension provided for the fiber tows by the magnetic powder brake 61, the magnetic powder brake 61 and the control box group 62 can provide different tension, and conveniently adjust the tension, the provided tension is accurate in value, the accuracy of the test result is improved, and the tension sensor installed at the yarn nozzle 52 can monitor in real time and convey the tension back to the control box group 62.

As shown in fig. 9, in this embodiment, the fiber fluffing amount testing device further includes an infiltration mechanism 7, the infiltration mechanism 7 includes an infiltration tank 71, an extrusion mechanism 74 and a heating mechanism 73, the infiltration tank 71 is fixed on the insertion plate 8, the heating mechanism 73 is disposed in the infiltration tank 71, the heating mechanism 73 can heat the infiltration liquid contained in the infiltration tank 71, an infiltration rod 72 is disposed at the bottom of the infiltration tank 71, the extrusion mechanism 74 is fixed at an end of the opening of the infiltration tank 71 away from the fiber unwinding mechanism 2 for extruding the excess infiltration liquid infiltrated by the fiber tows, the fiber guiding mechanism further includes at least two second guiding devices, a second wire guiding round rod of the second guiding devices, a second base fixing member and a second wire guiding round rod fixing member, the second base is fixedly connected with the frame body through the second base fixing member, at least one end of the second wire guiding round rod can be connected with the second base and can rotate in the second base, the second guide wire round rod fixing part can relatively fix the second guide wire round rod and the second base, fiber tows are unfolded through a second guiding device, enter the soaking box 71 from one end of an opening of the soaking box 71, pass through the bottom of the soaking rod 72 and then leave the soaking box 71 through the extruding mechanism 74, the amount of the wool generated by the fiber tows in a carbon fiber tow impregnation state can be measured by adding the impregnating liquid into the soaking box 71, the soaking box 71 is V-shaped from top to bottom, the soaking rod 72 is arranged at the bottom of the soaking box 71, the impregnating liquid selects resin, the fiber tows can be fully impregnated with the resin in a state of not wasting redundant resin, the heating mechanism 73 adopts water bath heating to keep the resin under a proper temperature, the impregnation effect of the fiber tows can be ensured, the extruding mechanism 74 is two rollers, and the fiber tows pass through the two rollers, the two rollers can squeeze out redundant resin on the fiber tows, and waste of the resin is avoided.

As shown in fig. 10-11, in this embodiment, the filament amount collecting mechanism 4 includes a box 41 and an adjusting mechanism 42, a bottom plate of the box 41 can be movably connected to the insertion plate 8, the height of the box on the frame can be adjusted according to the height of the last round filament guiding rod 31, it is ensured that the filament bundle can horizontally enter the box and horizontally leave the box, thereby avoiding filament generation, the box 41 is filled with an upper adsorption sheet 45, a lower adsorption sheet 46 and a pressing plate 44, the upper adsorption sheet 45 and the lower adsorption sheet 46 are sponges in this embodiment, there is no baffle on the side where the filament bundle enters the box, there is a baffle on the side away from the box, it is convenient to replace the upper adsorption sheet 45, the lower adsorption sheet 46 and the pressing plate 44, and the baffle can prevent the sponges from moving due to fiber movement, holes can be further formed at the rear end of the baffle, it is prevented that the filament bundle shakes and rubs with the baffle due to movement of the filament nozzle 52, collection of the filament bundle is influenced, collection of the filament amount of the filament bundle is prevented, the filament bundle can pass through the fiber bundle between the upper adsorption sheet 45 and the lower adsorption sheet 46, the pressure of the box is ensured that the filament bundle contacts the pressure adjusting mechanism 41 and the pressure of the pressure adjusting mechanism 41, the pressure sensor is adjusted on the box, the bottom of the box, the pressure sensor is ensured that the filament bundle is adjusted and the pressure sensor 41, the pressure sensor is adjusted on the box, and the pressure sensor, and the pressure sensor is adjusted on the box.

In this embodiment, the fiber winding mechanism 5 includes a screw rod mechanism and a winding bobbin 55, the screw rod mechanism includes a motor 53, a threaded screw rod 51, a filament nozzle 52 and two orientation rods 57, as shown in fig. 12, axes of the two orientation rods 57 and an axis of the threaded screw rod 51 are on the same plane, and the two orientation rods 57 are fixed on two sides of the threaded screw rod 51, the filament nozzle 52 is in threaded connection with the threaded screw rod 51, is in sliding connection with the two orientation rods 57, and can move axially along the threaded screw rod 51, the motor 53 can control a rotation speed of the threaded screw rod 51, the winding bobbin 55 is located at a rear end of the screw rod mechanism and is used for winding fiber tows from the screw rod mechanism, the motor 53 is controlled by the rotation speed control box 54 to rotate the threaded screw rod 51 to drive the filament nozzle 52 to move left and right, the fiber tows can be wound on the winding bobbin 55 layer by layer from left to right in an order from left, so as to right, the fiber tows are prevented from being wound at the same position of the winding bobbin 55, the fiber tows are prone to be adhered to continuously stacked together, and a too high stacking height may cause a height difference with the tow collecting mechanism 4, which causes a horizontal in and further causes a tow in and a tow test result of a sponge.

In this embodiment, the filament nozzle 52 is connected to the tension sensor 58, which can monitor the system tension in real time and feed back the system tension to the tension controller, and the tension sensor 58 can detect the tension of the fiber tow and send the tension to the control box 62.

The winding bobbin 55 is fixedly connected with the shaft clamped by the three-jaw chuck 56, the winding bobbin 55 is connected with the winding machine, the rotating speed of the winding machine is controlled by a winding machine computer (not drawn in the embodiment), the winding speed of the fiber tows on the winding bobbin 55 is further controlled, and the test experiment of different winding speeds on the fuzzing amount can be realized.

Example 2

This example is a method for testing factors affecting the fuzzing amount of a fiber tow by using the fiber fuzzing amount testing apparatus of example 1, including:

comparative example test

The method comprises the following steps:

the method comprises the following steps: fixing a yarn drum with carbon fiber tows on an unwinding shaft, and horizontally passing the carbon fiber tows through a fiber unwinding mechanism, an infiltration mechanism, a fiber guide mechanism, a broken yarn amount collecting mechanism and a fiber winding mechanism in sequence according to a yarn running direction;

step two: determining a tension provided by the magnetic powder brake to the fiber tows by adjusting a control box group of the tension control mechanism;

step three: determining the position of each guide device on the insertion plate, determining the material and the diameter of the guide wire round rod, and determining that the guide wire round rod is fixed or rolls on the base;

step four: determining a pressure applied on the sponge by adjusting an adjusting mechanism in the broken filament quantity collecting mechanism, and further collecting the broken filaments of the carbon fiber tows passing between the upper sponge and the lower sponge;

step five: determining a winding rate, calculating the rotating speed and the number of winding turns of a winding yarn drum according to the diameter of the winding yarn drum and the total length of the tested carbon fiber tows, and starting testing after the rotating speed and the number of winding turns are set on a rotating speed control box according to the calculation result;

step six: after the test is finished, the sponge is taken out, the broken filaments adsorbed by the sponge are taken out by using tweezers and placed in an electronic balance tray with the precision of 0.01mg for weighing, and the fluffing amount of the fiber tows is obtained; and (3) taking out the broken filaments adsorbed by the sponge by using tweezers, placing the broken filaments into a high-temperature-resistant tray, then placing the tray into a muffle furnace filled with inert gas, heating the tray for 4 hours at a temperature of over 400 ℃, thermally decomposing the resin, placing the remaining carbon fiber broken filaments into an electronic balance, and weighing to obtain the initial fuzzing amount of the fiber tows in the gum dipping state.

Test of Experimental group

Experiment group one: when the influence of the height difference and the angle difference of the guide wire round rod on the fiber tow fuzzing amount is tested, the positions of the two adjacent guide devices on the insertion plate in the third step of the comparison example are changed according to the experimental plan, the test is carried out for multiple times, other steps are the same as the comparison example, and the influence of the different height differences and the angle differences of the two adjacent guide devices on the fiber tow fuzzing amount is obtained by comparing all data of the experimental group I with the comparison example.

Experiment group two: when the influence of different guide wire round rod materials and diameters on the fiber tow fuzzing amount is tested, the guide wire round rod materials and the diameters in the third step of the comparison example are changed according to the experimental plan, the test is carried out for multiple times, other steps are the same as the comparison example, and the influence of different guide wire round rod materials and diameters on the fiber tow fuzzing amount is obtained by comparing all data of the second experiment group with the comparison example.

Experiment group three: when the influence of different guide wire circular motion forms on the fiber tow fuzzing amount is tested, the motion state of the guide wire circular rod in the third step of the comparison example is changed according to the experimental plan and a plurality of tests are carried out, other steps are the same as the comparison example, and all data of the third step of the experiment group are compared with the comparison example, so that the influence of the different motion forms of the guide wire circular rod on the fiber tow fuzzing amount is obtained.

Experiment group four: and when the influence of different winding tensions on the fiber tow fuzzing amount is tested, changing the set value of the control box group in the step two of the comparison example according to the experimental plan and carrying out a plurality of tests, wherein other steps are the same as the comparison example, and the influence of different winding tensions on the fiber tow fuzzing amount is obtained by comparing all data of the experiment group four with the comparison example.

Experiment group five: and when the influence of the winding speed of different fiber tows on the fiber tow fuzzing amount is tested, changing the winding speed in the step five of the comparison example according to the experimental plan and carrying out a plurality of tests, wherein other steps are the same as the comparison example, and comparing all data of the experimental group five with the comparison example to obtain the influence of different winding speeds on the fiber tow fuzzing amount.

Experiment group six: for the gum dipping state test needing to use the resin box, the first step is modified to be that an infiltration mechanism is installed at the front section of a fiber guide mechanism, the prepared resin glue solution is poured into the resin box, a water bath heating switch of the infiltration mechanism is opened to adjust the temperature to a proper resin working environment, a yarn drum with carbon fiber tows is fixed on an unwinding shaft, the carbon fiber tows are pulled to horizontally pass through the fiber unwinding mechanism, the infiltration mechanism, the fiber guide mechanism, a wool amount collecting mechanism and a fiber winding mechanism in sequence, and the influence of the resin infiltration state on the wool amount can be obtained after other steps are the same as the comparison example.

The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. A fiber fluffing amount testing device is characterized in that: including the support body and fibre unwinding mechanism, fibre guiding mechanism, broken filament volume collection mechanism and the fibre winding mechanism that sets gradually on the support body, fibre unwinding mechanism is used for releasing fibre silk bundle, fibre guiding mechanism is used for will leaving fibre unwinding mechanism's fibre silk bundle expandes, broken filament volume collection mechanism is used for collecting the broken filament that comes from fibre guiding mechanism's fibre silk bundle, process the fibre silk bundle that mechanism was collected to the broken filament volume passes through fibre winding mechanism twines, fibre guiding mechanism includes two at least first guider, first guider includes first seal wire round bar, first base mounting and first seal wire round bar mounting, first base can connect with moving on the support body, first base mounting can be fixed the base is in relative position on the support body, first seal wire round bar at least one end can with first base is connected and can be in first base internal rotation, first seal wire round bar can make first seal wire round bar with first base is fixed relatively.

2. The fiber fuzz testing apparatus of claim 1, wherein: the frame body comprises an insertion plate, a channel is formed in the insertion plate, the first base is connected with the channel and can slide along the channel, the height difference and the angle of two adjacent first guide devices are changed, the first base is provided with a first bearing, at least one end of the guide wire round rod penetrates through the first bearing, the first base fixing piece comprises a base fastening bolt, the base fastening bolt penetrates through the first base and the insertion plate and is in threaded connection with a nut, the distance between the head of the base fastening bolt and the nut is adjusted to enable the first base to be fixed or moved on the insertion plate, the first guide wire round rod fixing piece comprises a guide wire round rod fastening bolt, the guide wire round rod fastening bolt is in threaded connection with the peripheral surface of the first bearing, the first guide wire round rod is fixed relative to the first bearing when the tail of the guide wire round rod fastening bolt is in fastening contact with the peripheral surface of the first bearing, and the first guide wire round rod rotates in the first bearing when the tail of the guide wire round rod fastening bolt and the peripheral surface of the first bearing have a gap.

3. The fiber fuzz testing apparatus of claim 1, wherein: still include tension control mechanism, tension control mechanism with fibre unwinding mechanism fixed connection, fibre unwinding mechanism is including unreeling a yarn section of thick bamboo and unreeling the axle, it can fix to unreel a yarn section of thick bamboo unreel epaxially, tension control mechanism includes magnetic powder brake and control box group, magnetic powder brake with unreel axle fixed connection and can provide tension to the fibre silk bundle that unreels on the yarn section of thick bamboo, control box group can control the magnetic powder brake provides the tension size of fibre silk bundle.

4. The fiber fuzz testing apparatus of claim 2, wherein: the fiber guiding mechanism further comprises at least two second guiding devices, each second guiding device comprises a second guide wire round rod, a second base fixing part and a second guide wire round rod fixing part, the second base is fixedly connected with the frame body through the second base fixing part, at least one end of the second guide wire round rod can be connected with the second base and can rotate in the second base, the second guide wire round rod fixing part can enable the second guide wire round rod to be relatively fixed with the second base, and fiber tows are unfolded through the second guiding devices, enter the infiltration box from one end of the opening of the infiltration box and pass through the infiltration rod bottom and then leave the extrusion box after passing through the infiltration rod bottom.

5. The fiber fuzz testing apparatus of claim 4, wherein: the area of the horizontal cross section of the infiltration box from top to bottom is smaller and smaller, the heating mechanism adopts water bath heating, the extrusion mechanism comprises two rollers, the rollers are rotatably connected with the infiltration box, and fiber tows penetrate through the two rollers.

6. The fiber fuzz testing apparatus of claim 2, wherein: the broken filament quantity collecting mechanism comprises a box body and an adjusting mechanism, the bottom plate of the box body is fixedly connected with the inserting plate and can be adjusted, the box body is arranged at the position on the inserting plate, an upper absorbing sheet, a lower absorbing sheet and a pressing plate are filled in the box body, the upper absorbing sheet and the lower absorbing sheet can penetrate through fiber tows and collect broken filaments of the fiber tows, the pressing plate is arranged above the upper absorbing sheet, the adjusting mechanism penetrates through the top surface of the box body and stretches into the inside of the box body and contacts with the pressing plate, and the adjusting mechanism is adjusted to enable the pressing plate to compress the upper absorbing sheet on the lower absorbing sheet.

7. The fiber fuzz testing apparatus of claim 6, wherein: and a pressure sensor is arranged at the bottom of the pressure plate.

8. The fiber fuzz testing apparatus of claim 3, wherein: the fiber winding mechanism comprises a screw rod mechanism and a winding yarn barrel, the screw rod mechanism comprises a motor, a threaded screw rod and a yarn nozzle, the yarn nozzle is parallel to the axis direction sliding connection of the threaded screw rod on the frame body, the yarn nozzle is in threaded connection with the threaded screw rod and can be axially moved by the threaded screw rod, the motor can control the rotating speed of the threaded screw rod, and the winding yarn barrel is located at the rear end of the screw rod mechanism and used for winding fiber tows from the screw rod mechanism.

9. The fiber fuzz testing apparatus of claim 8, wherein: the fiber nozzle is connected with a tension sensor, and the tension sensor can detect the tension of the fiber tows and convey the tension to the control box group.

10. The fiber fuzz testing apparatus of claim 8, wherein: the winding yarn drum is connected with the winding machine, and the winding machine adjusts the rotating speed through the rotating speed control box, so that the winding speed of the fiber tows on the winding yarn drum is controlled.

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