CN107703211A - A kind of fiber-wall-element model degree measuring instrument - Google Patents

Abstract

The invention relates to a fiber orientation measuring instrument, which includes a measuring instrument body, a wire hanging assembly, a transverse driving assembly, and a wire lifting assembly. The body of the measuring instrument includes a mechanical measuring mechanism, and the first acoustic wave sensor assembly and the second acoustic wave sensor assembly are installed on the mechanical measuring mechanism; The sensor assembly and the second acoustic wave sensor assembly; the transverse drive assembly is arranged on the mechanical measuring mechanism for driving the first acoustic wave sensor assembly and/or the second acoustic wave sensor assembly to move laterally along the mechanical measuring mechanism to adjust the first acoustic wave The distance between the sensor assembly and the second acoustic wave sensor assembly; the wire lifting and lowering assembly is arranged on the mechanical measuring mechanism, and is used for lifting the tow to be tested and moving the lifted tow to be tested downward. The invention is mainly used for improving the degree of automation, measuring efficiency and measuring precision of the fiber orientation degree measuring instrument, and reducing the labor intensity of testing personnel.

Description

A Fiber Orientation Measuring Instrument

technical field

The invention relates to the technical field of fiber orientation measurement, in particular to a fiber orientation measurement instrument.

Background technique

The degree of orientation of fibers is an important parameter to characterize the structure and mechanical properties of fibrous supramolecular materials. The measurement of fiber orientation is an important technical issue in production control and fiber structure research. The main measurement methods of related instruments for measuring fiber orientation degree by sound velocity method are as follows:

The sound wave transmits from the first acoustic wave sensor component to the second acoustic wave sensor component through the fiber filament for T _L , but the transmission of the sound wave will produce a certain delay, plus the delay time in the circuit, the measured time T _L includes Given the delay time Δt, the actual propagation time should be T _L -Δt.

In the actual measurement, the measurement of the sound velocity value is to obtain the delay time by the double-length method, and then calculate the sound velocity propagation speed through the corresponding formula, that is, the sound velocity value C.

First set the test length as 40cm, record the measured display time T ₄₀ ; then shorten it to 20cm, record the display time T ₂₀ , and calculate the delay time Δt according to the following formula:

Δt(μs)=2×T ₂₀ -T ₄₀ =2(t ₂₀ +Δt)-(t ₄₀ +Δt)

Where: Δt is the delay time in μs, T ₂₀ is the display time when the test distance is 20cm, and T ₄₀ is the display time when the test distance is 40cm.

So the sound velocity value

The operation steps of the existing instruments for measuring the degree of fiber orientation by the sound velocity method are mainly as follows: first, move the tow clamp to the first specified distance by hand, then mount the tow to be measured on the acoustic wave sensor, press Test the test button at the first specified distance. Second, after the first specified distance test is completed, manually remove the tow to be tested, manually move the fixture to the second specified distance, then hang the tow to be tested on the acoustic wave sensor, and press the second specified distance test button to test. Finally, repeat the steps more than 5 times to complete the test, and the instrument automatically processes the data and prints out the test results.

It can be seen from the above that there are at least the following problems in the existing related instruments that use the sound velocity method to measure the degree of fiber orientation: the test operation is mainly performed manually, and the manual operation is cumbersome, labor-intensive, and the measurement efficiency is low.

Contents of the invention

In view of this, the present invention provides a fiber orientation measuring instrument, the main purpose of which is to improve the degree of automation of the fiber orientation measuring instrument, improve measurement efficiency and measurement accuracy, and reduce the labor intensity of testers at the same time.

In order to achieve the above object, the present invention mainly provides the following technical solutions:

In one aspect, an embodiment of the present invention provides a fiber orientation measuring instrument, wherein the fiber orientation measuring instrument comprises:

A measuring instrument body, the measuring instrument body comprising a mechanical measuring mechanism on which a first acoustic wave sensor assembly and a second acoustic wave sensor assembly are mounted;

a wire hanging assembly, the wire hanging assembly is arranged on the measuring instrument body, and is used to hang the fiber to be tested, and hang the wire to be tested on the first acoustic wave sensor assembly and the second acoustic wave sensor assembly;

a lateral drive assembly, the lateral drive assembly is arranged on the mechanical measurement mechanism, and is used to drive the first acoustic wave sensor assembly and/or the second acoustic wave sensor assembly to move laterally along the mechanical measurement mechanism to adjust the first acoustic wave sensor assembly the distance between the acoustic wave sensor assembly and the second acoustic wave sensor assembly;

A wire lifting and lowering assembly, the wire lifting and lowering assembly is arranged on the tester body, and is used to lift the fiber to be tested and move the lifted fiber to be tested downward, so as to realize the adjustment of the first sound When adjusting the distance between the wave sensor assembly and the second acoustic wave sensor assembly, the fiber to be tested is lifted, and after the adjustment is completed, the lifted fiber to be tested is moved down.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

Preferably, the mechanical measuring mechanism includes:

a first vertical board; a second vertical board, the second vertical board is arranged opposite to the first vertical board;

A crossbar scale, one end of the crossbar scale is connected to the first vertical plate, and the other end is connected to the second vertical plate;

The first guide shaft, one end of the first guide shaft is connected to the first vertical plate, and the other end is connected to the second vertical plate; wherein, the first acoustic wave sensor assembly and the second acoustic wave sensor assembly are set on the first guide shaft, and the first acoustic wave sensor assembly and/or the second acoustic wave sensor assembly can move along the first guide shaft under the drive of the lateral drive assembly;

Preferably, there are two first guide shafts, and one of the first guide shafts is located above the other first guide shaft;

Preferably, the crossbar scale is located at the front side of the measuring instrument body, the first guide shaft is located at the rear side of the measuring instrument body, and the horizontal scale and the first guiding axis are parallel to each other.

Preferably, the hanging wire assembly includes:

a clamping mechanism, the clamping mechanism is arranged on the first vertical plate, and is used to clamp one end of the tow to be tested;

A pulley mechanism, the pulley mechanism is arranged on the second vertical plate; wherein, the pulley mechanism includes a pulley; wherein, the tow to be measured is covered on the pulley, and the other end of the tow to be measured is connected to Counterweight;

Preferably, the clamping mechanism includes a clamping bracket, a clamping platen and a clamping rod; wherein,

The clamping bracket is installed on the first vertical plate, and the clamping bracket is provided with a slot; the slot has a socket, and has an upper groove wall and a lower groove wall oppositely arranged; preferably, the The above slot is a C-shaped slot;

The clamping platen is arranged in the slot of the clamping bracket;

The lower end of the clamping rod enters the slot through the upper groove wall of the slot and is threadedly connected with the clamping platen;

Wherein, the tow to be tested enters the slot through the socket and is arranged between the clamping platen and the wall of the lower groove, and the clamping lever is rotated to make the tow to be tested be compressed by the clamping platen.

Preferably, the wire lifting assembly includes:

a first driving mechanism, the first driving mechanism is installed on the measuring instrument body;

a movable plate, the first drive mechanism is drivingly connected to the movable plate, and is used to drive the movable plate to rise or fall;

A wire lifting mechanism, the wire lifting mechanism is arranged on the movable plate; wherein, when the movable plate rises, the wire lifting mechanism lifts the tow to be measured; when the movable plate descends, lifts The tow to be tested moves down to the original position;

Preferably, the wire lifting mechanism includes: a connecting rod, a fixed block, a positioning plate and a lifting rod; wherein, the lower end of the connecting rod is fixed on the movable plate; one end of the fixed block is provided with a chuck, The collet is clamped on the upper end of the connecting rod; the other end of the fixed block is provided with a slot; one end of the positioning plate is adapted to the slot and engaged in the slot , the other end of the positioning plate is provided with a fixing hole; one end of the lifting rod is fixed on the fixing hole, and the other end extends below the to-be-tested wire bundle hooked by the wire hanging assembly.

Preferably, the first drive mechanism includes:

A first driving body, the first driving body is installed on the installation board, and the installation board is fixed to the measuring instrument body; preferably, the first driving body is a motor;

The first driving screw, the first driving body is drivingly connected to the lower end of the first driving screw, and is used to drive the first driving screw to rotate; the movable plate is sleeved on the first driving screw on, and threadedly connected with the first driving screw;

Wherein, the first driving screw is driven to rotate through the first driving body to control the movable plate to rise or fall;

Preferably, when the measuring instrument body includes a second vertical plate, the installation plate is fixed to the second vertical plate;

Preferably, a second guide shaft is also provided on the placement plate, the movable plate is sleeved on the second guide shaft, and driven by the first driving mechanism, it moves up or down along the second guide shaft. descending: there are two second guide shafts, and the two second guide shafts are located on both sides of the first driving screw and parallel to the first driving screw.

Preferably, the lateral drive assembly is drivingly connected to the second acoustic wave sensor assembly, and the lateral drive assembly includes:

The second driving body; preferably, the second driving body is a motor;

A second driving screw, one end of the second driving screw is rotatably connected to the first vertical plate, and the other end is rotatably connected to the second vertical plate; the main body of the second driving mechanism is connected to the second the driving screw is driven and connected to drive the second driving screw to rotate;

The first acoustic wave sensor assembly and the second acoustic wave sensor assembly are sleeved on the second driving screw; wherein, the second acoustic wave sensor assembly is threadedly connected to the second driving screw, so that the a second acoustic wave sensor assembly movable along the meter body;

Preferably, when the measuring instrument body includes a first guide shaft, the second drive screw is parallel to the first guide shaft; and when there are two first guide shafts, the second drive screw Located between the two first guide shafts.

Preferably, the first acoustic wave sensor assembly includes:

A first sensor bracket, the first sensor bracket is used to install the acoustic wave sensor;

A fixed bracket, the fixed bracket is sleeved on the first guide shaft and the second driving screw; and the fixed bracket is connected to the lower end of the first sensor bracket, so that the first sensor bracket is positioned at the horizontal scale above;

Preferably, the first acoustic wave sensor assembly is arranged close to the first vertical plate.

Preferably, the second acoustic wave sensor assembly includes:

A second sensor bracket, the second sensor bracket is used to install the acoustic wave sensor;

A movable bracket, the movable bracket is sleeved on the first guide shaft and the second driving screw, and the movable bracket is threadedly connected with the second driving screw, so that it can be driven by the transverse drive assembly Move along the first guide shaft and the second driving screw; wherein, the movable bracket is connected to the lower end of the second sensor bracket, so that the second sensor bracket is located above the horizontal scale;

Preferably, the second acoustic wave sensor assembly is arranged close to the second vertical board; the second driving body is installed on the second vertical board; when the wire lifting and lowering assembly includes a screw rod, the The lifting screw is located between the second vertical plate and the second acoustic wave sensor assembly.

Preferably, pointers are connected to the lower ends of the first sensor bracket and the second sensor bracket, and the pointer points to the scale of the horizontal scale.

Preferably, the mechanical measuring mechanism is provided with a controller, and the controller is connected to the lateral drive assembly and the wire lifting assembly, and is used to control the lateral drive assembly to adjust the first acoustic wave sensor assembly and the second acoustic wave sensor assembly When adjusting the distance, control the wire lifting and lowering assembly to lift the tow to be tested, and after the adjustment, control the lifting and lowering assembly to move down the lifted tow to be tested. The measuring instrument body also includes an electronic system, and the electronic system also includes a computer program; preferably, the controller is automatically controlled by the computer program.

Compared with the prior art, the fiber orientation measuring instrument of the present invention has at least the following beneficial effects:

The fiber orientation measuring instrument provided by the embodiment of the present invention is provided with a hanging wire component, a lateral drive component and a wire lifting and lowering component on the mechanical measuring mechanism. on the acoustic sensor assembly and the second acoustic sensor assembly. In the test, only need to control the lifting assembly and the lateral driving assembly to realize the measurement and automatic switching of the travel time of the tow to be tested in the first specified distance and the second specified distance, without manual operation. Therefore, compared with the prior art, the fiber orientation measuring instrument provided by this embodiment has a high degree of automation, improves efficiency and measurement accuracy, and reduces the labor intensity of testers at the same time.

Further, the hanging wire assembly in the fiber orientation measuring instrument provided by the embodiment of the present invention includes a clamping mechanism arranged on the first vertical plate and a pulley mechanism arranged on the second vertical plate, so that the to-be-measured One end of the tow is clamped by the clamping mechanism on the first vertical plate, and the other end is hooked by the pulley mechanism on the second vertical plate, so that the tow to be measured can extend along the axial direction of the measuring instrument body, and Pass the first acoustic sensor assembly and the second acoustic sensor assembly.

Further, the fiber orientation measuring instrument provided by the embodiment of the present invention drives the first driving screw to rotate through the first driving body, and the first driving screw is screwed to the movable plate, and then drives the movable plate to rise or fall, so that the fixed The wire lifting mechanism on the movable plate rises or falls; this setting can control the lifting or lowering of the wire lifting mechanism smoothly, and finally improves the measurement accuracy of the fiber orientation measuring instrument.

Further, the fiber orientation measuring instrument provided by the embodiment of the present invention sets the transverse drive assembly so that the second drive body drives the second drive screw to rotate, so that it is sleeved on the second drive screw, and is connected with the second drive screw. The driving mode in which the second acoustic wave sensor component connected with the rod threaded moves along the measuring instrument body, this driving mode can smoothly control the movement of the sensor component along the measuring instrument body, and improve the measurement accuracy of the fiber orientation measuring instrument.

Further, the fiber orientation measuring instrument provided by the embodiment of the present invention is provided with a controller to control the lateral drive assembly and the wire lifting assembly, which further improves the automation of the fiber orientation measuring instrument and reduces the labor intensity. , which improves the test efficiency.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a fiber orientation measuring instrument provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of another three-dimensional structure of a fiber orientation measuring instrument provided by an embodiment of the present invention;

Fig. 3 is the enlarged structure diagram of the structure shown in Fig. 2 in part A;

Fig. 4 is a schematic structural view of a crossbar scale provided by an embodiment of the present invention;

Fig. 5A is a schematic diagram of a three-dimensional structure of a first vertical plate provided by an embodiment of the present invention;

Fig. 5B is a schematic diagram of another three-dimensional structure of a first vertical plate provided by an embodiment of the present invention;

Fig. 6A is a schematic diagram of a three-dimensional structure of a second vertical plate provided by an embodiment of the present invention;

Fig. 6B is a schematic diagram of another three-dimensional structure of a second vertical plate provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a wire lifting and lowering assembly provided by an embodiment of the present invention;

Fig. 8A is a three-dimensional structural schematic diagram of a lifting rod fixing block provided by an embodiment of the present invention;

Fig. 8B is a schematic diagram of another three-dimensional structure of a lifting rod fixing block provided by an embodiment of the present invention;

Fig. 9 is a schematic perspective view of a three-dimensional structure of a lifting rod positioning plate provided by an embodiment of the present invention;

Fig. 10A is a schematic perspective view of a first sensor bracket provided by an embodiment of the present invention;

Fig. 10B is another stereoscopic structural diagram of a first sensor bracket provided by an embodiment of the present invention;

Fig. 10C is a schematic structural view of a rear cover on a first sensor bracket provided by an embodiment of the present invention;

Fig. 10D is a schematic structural view of a pointer assembly on a first sensor bracket provided by an embodiment of the present invention;

Fig. 11 is a schematic structural view of a fixing bracket provided by an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of a movable bracket provided by an embodiment of the present invention.

detailed description

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the application according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. . In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

Example 1

This embodiment provides a fiber orientation degree measuring instrument, which measures the fiber orientation degree by using the sound velocity method. Specifically, as shown in FIG. 1 and FIG. 2 , the fiber orientation measuring instrument in this embodiment includes a measuring instrument body, a wire hanging assembly, a transverse driving assembly, and a wire lifting and lowering assembly 3 . Wherein, the measuring instrument body includes a mechanical measuring mechanism; a first acoustic wave sensor assembly 51 and a second acoustic wave sensor assembly 52 are installed on the mechanical measuring mechanism. The hanging wire assembly is arranged on the measuring instrument body, and is used for hanging the wire bundle to be tested, and makes the wire bundle to be tested pass through the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 . The lateral drive assembly is arranged on the tester body, and is used to drive the second acoustic wave sensor assembly to move laterally along the mechanical measuring mechanism to adjust the distance between the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 (adjust accordingly The specified propagation distance of the sound wave on the tow to be measured) the lifting assembly 3 for lifting the wire to be measured is arranged on the mechanical measuring mechanism, and is used to lift the tow to be measured and move the lifted tow to be measured downward, so as to adjust the first When adjusting the distance between the acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52, the tow to be tested is lifted to separate the tow to be tested from the moving sensor assembly, and after the adjustment is completed, the lifted tow to be tested The measuring wire bundle moves down to be hung on the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 .

The fiber orientation measuring instrument provided in this embodiment is provided with a hanging wire assembly, a lateral drive assembly and a wire lifting assembly 3 on the mechanical measuring mechanism, and only needs to hang the tow to be measured by the wire hanging assembly at the beginning of the test, And make it pass through the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 . In the test, only need to control the lifting assembly 3 and the lateral driving assembly, the measurement of the travel time of the tow to be tested at the first specified distance and the measurement and automatic switching of the travel time of the second specified distance can be realized without manual operation. Therefore, compared with the prior art, the fiber orientation measuring instrument provided by this embodiment has a high degree of automation and low labor intensity of testers.

The measuring instrument body also includes an electronic system, and the electronic system includes a computer program, through which the program controls the fiber orientation measuring instrument to automatically measure the orientation of the to-be-tested tow; and the measurement result can be automatically calculated through the program.

Example 2

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the previous embodiment, as shown in Fig. 1 and Fig. 2, Fig. 4 to Fig. 6B, the mechanical measuring mechanism of this embodiment includes: the first Vertical plate 11, second vertical plate 12, cross bar scale 14, first guide shaft 13. Wherein, the second vertical plate 12 is arranged opposite to the first vertical plate 11 . One end of the cross bar scale 14 is connected with the first vertical board 11 , and the other end is connected with the second vertical board 12 . One end of the first guide shaft 13 is connected to the first vertical plate 11, and the other end is connected to the second vertical plate 12; wherein, the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 are sleeved on the guide shaft 13, and the second The two acoustic wave sensor components 52 can move along the first guide shaft 13 driven by the transverse drive component.

Preferably, there are two first guide shafts 13, and one of the first guide shafts is located above the other first guide shaft.

Preferably, the crossbar scale 14 is located at the front side of the mechanical measuring mechanism, the first guide shaft 13 is located at the rear side of the mechanical measuring mechanism, and the horizontal scale 14 and the first guide shaft 13 are parallel to each other.

Preferably, the measuring instrument body further includes a first bottom plate 111 and a second bottom plate 112 ; wherein, the first vertical plate 11 is installed on the first bottom plate 111 . The second vertical board 12 is installed on the second bottom board 112 . Preferably, an adjusting nut 1130 is connected to the first bottom plate 111 , and an adjusting nut 1120 is connected to the second bottom plate for adjusting the balance of the measuring instrument body.

Example 3

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the above-mentioned embodiments, this embodiment specifically designs the hanging wire assembly as follows:

As shown in FIG. 1 and FIG. 2 , the hanging wire assembly in this embodiment includes a clamping mechanism 21 and a pulley mechanism. Wherein, the clamping mechanism 21 is arranged on the first vertical plate 11, and is used for clamping one end of the tow to be tested. The pulley mechanism is arranged on the second vertical board 12; wherein, the pulley mechanism includes a pulley 22; wherein, the tow to be tested is hung on the pulley 22, and the other end of the tow to be tested is connected with a counterweight. Here, in this embodiment, through the above-mentioned setting, one end of the tow to be tested is clamped by the clamping mechanism 21 on the first vertical plate 11, and the other end is articulated by the pulley mechanism on the second vertical plate 12, so that it can The wire bundle to be tested extends along the axial direction of the measuring instrument body and passes through the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 .

Preferably, as shown in Fig. 1 and Fig. 2, this embodiment further designs the clamping mechanism 21 as follows: the clamping mechanism 21 in this embodiment includes a clamping bracket 211, a clamping platen 212 and a clamping rod 213 . Wherein, the clamping bracket 211 is installed on the first connecting plate 23, and the clamping bracket 211 is provided with a slot; the slot has a socket, and has an upper slot wall and a lower slot wall oppositely arranged; preferably, the slot It is a C-shaped groove. The clamping plate 212 is arranged in the slot of the distance adjustment bracket 211 . The lower end of the clamping bolt 213 passes through the upper groove wall of the slot and enters the slot to be threadedly connected with the clamping pressure plate. Wherein, the tow to be tested enters the slot through the socket and is placed between the clamping platen 212 and the lower groove wall, and the clamping platen 212 compresses the tow to be tested by rotating the upper end of the clamping bolt 213 . Preferably, the clamping rod 213 is selected from bolts, screws or other threaded fasteners.

Preferably, as shown in Figure 1 and Figure 2, this embodiment further designs the connection mode between the clamping mechanism 21 and the first vertical plate 11 as follows: the first clamping mechanism 21 is connected to the first vertical plate 11 through the first connecting plate 23 On the riser 11. Specifically, the clamping bracket 211 on the clamping mechanism 21 is fixed on the first connecting plate 23 by fasteners (eg, bolts, screws). Preferably, at least two fastener holes are longitudinally provided on the first connecting plate 23 to adjust the height of the clamping mechanism 21 . The lower end of the first connecting plate 23 is connected with the first vertical plate 11. Preferably, the lower end of the first connecting plate 23 is rotationally connected with the first vertical plate 11, so that the first connecting plate 23 can be rotated relative to the first vertical plate 11. Angle, to adjust the lateral position of the clamping mechanism 21.

Preferably, as shown in Fig. 1 and Fig. 2, the present embodiment further designs the connection mode of the pulley mechanism and the second vertical plate 12 as follows: the pulley mechanism also includes a second connecting plate 24, and the lower end of the second connecting plate 24 is connected to The second vertical plate 12 is connected, and the upper end of the second connecting plate 24 is connected with the pulley 22 . Preferably, the second connecting plate 24 is rotatably connected with the second vertical plate 12 to adjust the position of the pulley 22 .

Example 4

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the above-mentioned embodiments, as shown in Fig. 1 and Fig. 2, and Fig. 7 to Fig. 9, the design of the wire lifting and lowering assembly 3 in this embodiment is as follows :

The wire lifting and lowering assembly 3 in this embodiment includes a first driving mechanism, a movable plate 33 and a wire lifting mechanism. Wherein, the first driving mechanism is installed on the measuring instrument body. The first driving mechanism is drivingly connected with the movable plate 33 and is used to drive the movable plate 33 to rise or fall. The wire lifting mechanism is arranged on the movable plate 33; wherein, when the movable plate 33 rises, the wire lifting mechanism lifts the tow to be tested; when the movable plate 33 descends, the lifted tow to be tested moves down to the original position.

Preferably, the specific structural design of the wire lifting mechanism in this embodiment is as follows: the wire lifting mechanism mainly includes a connecting rod 35 , a fixing block 36 , a positioning plate 38 and a screw lifting rod 37 . Wherein, the lower end of the connecting rod 35 is fixed on the movable plate 33 . One end of the fixed block 36 is provided with a clamp 361 , and the clamp 361 is clamped on the upper end of the connecting rod 35 ; the other end of the fixed block 36 is provided as a connecting piece 362 , and the connecting piece 362 is provided with a slot 3621 . One end of the positioning plate 38 fits into the slot 3621 and engages in the slot 3621 , and the other end of the positioning plate 38 is provided with a fixing hole. One end of lifting screw rod 37 is fixed on the fixed hole, and the other end stretches out below the tow to be measured that is articulated by hanging wire assembly.

Preferably, the first driving mechanism in this embodiment includes: a first driving body 31 (preferably a motor) and a first driving screw 39 . Wherein, the first driving body 31 is installed on the setting plate 32, and the setting plate 32 is fixed with the measuring instrument body; preferably, the setting plate 32 is fixed with the second vertical plate 12 (here, regarding the setting plate 32 and the second vertical plate The fixing method of the plate 12 is as follows: referring to Fig. 6A and Fig. 7, the mounting plate 32 is connected with a fixed block 321; the second vertical plate 12 is provided with a fixed groove 121, and the fixed groove 121 is matched with the fixed block 321, so as to The fixing block 321 is accommodated in the fixing groove 121, and the groove bottom of the fixing groove 121 is provided with connecting screw holes, and the mounting plate 32 is connected and fixed with the second vertical plate 12 by bolts 322). The first drive main body 31 is drivingly connected with the lower end of the first drive screw 39 for driving the first drive screw 39 to rotate; the movable plate 33 is sleeved on the first drive screw 39 and threaded with the first drive screw 39 connect. The first driving screw 39 is driven to rotate by the first driving body 31 to control the movable plate 33 to rise or fall.

Preferably, a second guide shaft 34 is also provided on the placement plate 33, and the movable plate 33 is sleeved on the second guide shaft 34, and rises or falls along the second guide shaft 34 driven by the first driving mechanism; There are two guide shafts 34 , and the two second guide shafts 34 are located on both sides of the first driving screw 39 and parallel to the first driving screw 39 .

The fiber orientation measuring instrument provided in this embodiment drives the first driving screw 39 to rotate through the first driving body 31, and the first driving screw 39 is screwed with the movable plate 33, and then drives the movable plate 33 to rise or fall, so that The wire-lifting mechanism fixed on the movable plate 33 rises or falls; such setting can control the rise or fall of the wire-lifting mechanism smoothly, and finally improves the measurement accuracy of the fiber orientation degree measuring instrument.

Example 5

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the above-mentioned embodiments, the lateral driving assembly of this embodiment is mainly used to drive the second acoustic wave sensor assembly to move laterally along the mechanical measuring mechanism. Specifically, as shown in FIGS. 1 and 2 , the transverse driving assembly includes: a second driving body 41 and a second driving screw 42 . Wherein, the second driving body 41 is preferably a motor; the second driving body 41 is preferably installed on the second vertical plate 12 . One end of the second driving screw 42 is rotatably connected to the first vertical plate 11 , and the other end is rotatably connected to the second vertical plate 12 ; the second driving body 41 drives the second driving screw 42 to rotate. The first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 are sleeved on the second driving screw rod 42; wherein, the second acoustic wave sensor assembly 52 is threadedly connected with the second driving screw rod 42, so that the second acoustic wave sensor assembly Can move along the mechanical measuring mechanism.

Preferably, the second driving screw 42 is parallel to the first guiding shafts 13 ; and the second driving screw 42 is located between the two first guiding shafts 13 .

The fiber orientation measuring instrument provided in this embodiment sets the transverse driving assembly so that the second driving body 41 drives the second driving screw 42 to rotate, so that it is sleeved on the second driving screw 42 and is connected with the second driving screw 42 The second acoustic wave sensor assembly 52 threaded to move along the driving mode of the mechanical measuring mechanism, this driving mode can smoothly control the moving distance of the second acoustic wave sensor assembly along the mechanical measuring mechanism, and improve the performance of the fiber orientation degree measuring instrument Measurement accuracy.

Example 6

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the above-mentioned embodiments, as shown in FIGS. On the basis of being used to drive the second acoustic wave sensor assembly 52 to move), the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 are further designed as follows:

The first acoustic wave sensor assembly 51 includes: a first sensor bracket 511 and a fixing bracket 512 . Wherein, the first sensor bracket 511 is used for installing the acoustic wave sensor. The fixing bracket 512 is sleeved on the first guiding shaft 13 and the second driving screw 42 , and will not move along the first guiding shaft 13 when the second driving screw 42 rotates. The fixing bracket 512 is connected to the lower end of the first sensor bracket 511 so that the first sensor bracket 511 is located above the horizontal scale 14 .

The second acoustic wave sensor assembly 52 includes: a second sensor bracket 521 and a movable bracket 522; wherein, the second sensor bracket 521 is used for installing the acoustic wave sensor. The movable bracket 522 is sleeved on the first guide shaft 13 and the second driving screw 42, and the movable bracket 522 is threadedly connected with the second driving screw 42, so that it can be driven along the first guide shaft 13, The second driving screw 42 moves; wherein, the movable bracket 522 is connected to the lower end of the second sensor bracket 521 so that the second sensor bracket 522 is located above the horizontal scale 14 .

Preferably, the first acoustic wave sensor assembly 51 is disposed close to the first vertical plate 11 , and the second acoustic wave sensor 52 is disposed close to the second vertical plate 12 . The screw lifting rod in the wire lifting lifting assembly 3 is located between the second vertical plate 12 and the second acoustic wave sensor assembly 52, and the screw lifting rod is arranged close to the second acoustic wave sensor.

Preferably, the lower ends of the first sensor bracket 511 and the second sensor bracket 521 are connected with pointers 53, and the pointers 53 point to the scales of the horizontal scale (see FIG. 3 for details).

Preferably, the structures of the first sensor bracket 511 and the second sensor bracket 521 in this embodiment are the same. Here, this embodiment takes the first sensor bracket 511 as an example for the first sensor bracket 511 and the second sensor bracket 521. The structure of the sensor is described in detail as follows: the first sensor bracket 511 includes a first bracket body and a second bracket body connected to each other, and the first bracket body and the second bracket body form a set angle at the joint. Wherein, the free end of the first support body is set towards the horizontal bar scale, and the free end of the first support body is connected with the pointer 53 (the free end of the first support body is provided with a connecting portion 5114, and the connecting portion 5114 is used to connect pointer structure; the pointer structure includes a pointer connection part 531 and a pointer 53, and the pointer connection part 531 is adapted and connected with the connection part 5114). The free end of the second support body faces the rear side of the mechanical measuring mechanism, and the second support body is a shell structure with an inner cavity; the free end of the second support body is provided with an opening 5112, and the rear cover 5110 closes the opening 5112 Opening 5112. An accommodating groove 5113 is provided at the junction of the first bracket body and the second bracket body, and the accommodating groove 5113 communicates with the inner cavity of the second bracket body. The accommodating groove 5113 is used for accommodating the acoustic wave sensor.

Example 7

Preferably, this embodiment provides a fiber orientation measuring instrument. Compared with the above embodiments, as shown in Figure 1 and Figure 2, the mechanical measuring mechanism in this embodiment is provided with a controller, wherein the controller It is connected with the horizontal drive assembly and the wire lifting assembly 3 (preferably, the controller is connected with the second driving body in the horizontal driving assembly; the controller is connected with the first driving body in the wire lifting assembly 3), for controlling The transverse driving assembly adjusts the distance between the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52, and controls the lifting wire lifting assembly 3 to lift the tow to be measured when the distance is adjusted, and controls the lifting and lowering assembly 3 after the adjustment is completed. The wire lifting assembly 3 moves down the lifted wire bundle to be tested to the original position.

Preferably, the controller in this embodiment is automatically controlled by a computer program.

The fiber orientation measuring instrument provided in this embodiment is equipped with a controller to control the lateral drive assembly and the wire lifting assembly, which further improves the automation of the fiber orientation measuring instrument, reduces labor intensity, and improves testing efficiency.

To sum up, as shown in Figure 1 and Figure 2, the operation steps of the fiber orientation measuring instrument provided in the above-mentioned embodiment during testing are as follows:

(1) Start the measurement control program, reset the measuring instrument body, and automatically start the transverse drive assembly to move the second acoustic wave sensor assembly 52 to the first clamp distance position.

At this time, the lateral distance L ₁ between the first acoustic wave sensor assembly and the second acoustic wave sensor assembly.

(2) After one end of the tow to be tested is clamped by the clamping mechanism 21, the tow to be tested passes through the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 successively, and passes through the lifting screw rod and the connecting pulley 22, and waits for The other end of the wire beam is loaded with preload.

(3) Start the measurement program, and measure the propagation time T ₁ of the first specified distance of the sound wave on the tow to be measured.

(4) After the measurement is completed, the control program automatically starts the wire lifting assembly 3, lifts the wire bundle to be measured upwards through the lifting screw rod, and then automatically starts the horizontal drive assembly to move the second acoustic wave sensor assembly 52 to the second clamping distance After the position (at this time, the lateral distance L ₂ between the first acoustic wave sensor assembly and the second acoustic wave sensor assembly.), then automatically start the lifting wire lifting assembly 3, so that the lifting screw rod is lowered, so that the tow to be tested hangs Carried on the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 .

(5) Start the measurement program to measure the second specified distance of the sound wave on the tow to be tested (that is, when the second acoustic wave sensor is at the second clamping distance position, the tow to be tested is at the first acoustic wave sensor assembly and the second acoustic wave The distance between the sensor assemblies is the propagation time T ₂ of the second specified distance). At this point, the first measurement is complete.

(6) After the first measurement is completed, the control program automatically activates the wire lifting and lowering assembly 3 to lift the tow to be measured, then automatically activates the horizontal drive assembly to move the second acoustic wave sensor assembly to the position of the first clamping distance, and then automatically Start the wire lifting and lowering assembly, and the lifting rod is lowered, so that the tow to be tested is mounted on the first acoustic wave sensor assembly 51 and the second acoustic wave sensor assembly 52 .

Steps (3)-(6) are automatically performed, and a total of 5 cycles are repeated.

(7) After 5 cycles, the measurement and control program automatically processes the test results.

Specifically, the following formula is used to calculate:

First, calculate the delay time according to the following formula:

Δt(μs)=2×T ₂ -T ₁ =2(t ₂ +Δt)-(t _l +Δt)

In the formula: Δt is the delay time, the unit is μs, T ₂ is the display time when the test distance is L2, and T ₁ is the display time when the test distance is L1.

Calculate the sound velocity value by the following formula:

For repeated measurements, the average value can be taken.

It can be seen from the above steps that the fiber orientation measuring instrument provided by the embodiment of the present invention requires the tester to carry out the thread hanging once in step (2), and the rest of the testing work is automatically completed by the computer program controlling the fiber orientation measuring instrument. Therefore, the fiber orientation degree measuring instrument provided by the embodiment of the present invention greatly improves the degree of automation of the fiber orientation degree measuring instrument and reduces the labor intensity of testers.

To sum up, those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous ways can be freely combined and superimposed.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the present invention. within the scope of the technical solution of the invention.

Claims (10)

1. A fiber orientation measuring instrument is characterized in that, said fiber orientation measuring instrument comprises: A measuring instrument body, the measuring instrument body comprising a mechanical measuring mechanism on which a first acoustic wave sensor assembly and a second acoustic wave sensor assembly are mounted; a hanging wire assembly, the hanging wire assembly is arranged on the mechanical measuring mechanism, and is used to hang the tow to be tested, and make the tow to be tested to pass through the first acoustic wave sensor assembly and the second acoustic wave sensor assembly; a lateral drive assembly, the lateral drive assembly is arranged on the mechanical measurement mechanism, and is used to drive the first acoustic wave sensor assembly and/or the second acoustic wave sensor assembly to move laterally along the mechanical measurement mechanism to adjust the first acoustic wave sensor assembly the distance between the acoustic wave sensor assembly and the second acoustic wave sensor assembly; A wire lifting and lowering assembly, the wire lifting and lowering assembly is arranged on the mechanical measuring mechanism, and is used to lift the tow to be tested and move the lifted tow to be tested downward, so as to adjust the first sound wave When adjusting the distance between the sensor assembly and the second acoustic wave sensor assembly, the tow to be tested is lifted, and after the adjustment is completed, the lifted tow to be tested is moved down. 2. fiber orientation measuring instrument according to claim 1, is characterized in that, described mechanical measuring mechanism comprises: first riser; a second vertical board, the second vertical board is arranged opposite to the first vertical board; A crossbar scale, one end of the crossbar scale is connected to the first vertical plate, and the other end is connected to the second vertical plate; The first guide shaft, one end of the first guide shaft is connected to the first vertical plate, and the other end is connected to the second vertical plate; wherein, the first acoustic wave sensor assembly and the second acoustic wave sensor assembly are set on the first guide shaft, and the first acoustic wave sensor assembly and/or the second acoustic wave sensor assembly can move along the first guide shaft under the drive of the lateral drive assembly; Preferably, there are two first guide shafts, and one of the first guide shafts is located above the other first guide shaft; Preferably, the horizontal bar scale is located at the front side of the mechanical measurement mechanism, the first guide shaft is located at the rear side of the mechanical measurement mechanism, and the horizontal scale and the first guide shaft are parallel to each other. 3. fiber orientation measuring instrument according to claim 2, is characterized in that, described hanging wire assembly comprises: a clamping mechanism, the clamping mechanism is arranged on the first vertical plate, and is used to clamp one end of the tow to be tested; A pulley mechanism, the pulley mechanism is arranged on the second vertical plate; wherein, the pulley mechanism includes a pulley; wherein, the tow to be measured is covered on the pulley, and the other end of the tow to be measured is connected to Counterweight; Preferably, the clamping mechanism includes a clamping bracket, a clamping pressure plate and a clamping rod; wherein, the clamping bracket is installed on the first vertical plate, and the clamping bracket is provided with a slot; the The slot has a socket, and has an upper slot wall and a lower slot wall opposite to each other; the clamping plate is arranged in the slot of the clamping bracket; the lower end of the clamping rod passes through the slot of the slot The upper groove wall enters the slot and is threadedly connected with the clamping platen; wherein, the wire bundle to be tested enters the slot through the socket and is placed between the clamping platen and the lower groove wall, and is rotated The clamping rod enables the clamping platen to compress the to-be-tested wire bundle; preferably, the slot is a C-shaped slot. 4. The fiber orientation measuring instrument according to any one of claims 1-3, wherein the wire lifting assembly comprises: a first drive mechanism, the first drive mechanism is installed on the mechanical measurement mechanism; a movable plate, the first drive mechanism is drivingly connected to the movable plate, and is used to drive the movable plate to rise or fall; A wire lifting mechanism, the wire lifting mechanism is arranged on the movable plate; wherein, when the movable plate rises, the wire lifting mechanism lifts the tow to be measured; when the movable plate descends, lifts The tow to be tested moves down to the original position; Preferably, the wire lifting mechanism includes: a connecting rod, a fixed block, a positioning plate and a lifting rod; wherein, the lower end of the connecting rod is fixed on the movable plate; one end of the fixed block is provided with a chuck, The collet is clamped on the upper end of the connecting rod; the other end of the fixed block is provided with a slot; one end of the positioning plate is adapted to the slot and engaged in the slot , the other end of the positioning plate is provided with a fixing hole; one end of the lifting rod is fixed on the fixing hole, and the other end extends below the to-be-tested wire bundle hooked by the wire hanging assembly. 5. fiber orientation measuring instrument according to claim 4, is characterized in that, described first driving mechanism comprises: A first driving body, the first driving body is installed on the installation board, and the installation board is fixed to the measuring instrument body; preferably, the first driving body is a motor; The first driving screw, the first driving body is drivingly connected to the lower end of the first driving screw, and is used to drive the first driving screw to rotate; the movable plate is sleeved on the first driving screw on, and threadedly connected with the first driving screw; Wherein, the first driving screw is driven to rotate through the first driving body to control the movable plate to rise or fall; Preferably, when the measuring instrument body includes a second vertical plate, the installation plate is fixed to the second vertical plate; Preferably, a second guide shaft is also provided on the placement plate, the movable plate is sleeved on the second guide shaft, and driven by the first driving mechanism, it moves up or down along the second guide shaft. descending: there are two second guide shafts, and the two second guide shafts are located on both sides of the first driving screw and parallel to the first driving screw. 6. The fiber orientation measuring instrument according to claim 2 or 3, wherein the transverse drive assembly is connected to the second acoustic wave sensor assembly, and the transverse drive assembly comprises: The second driving body; preferably, the second driving body is a motor; A second driving screw, one end of the second driving screw is rotatably connected to the first vertical plate, and the other end is rotatably connected to the second vertical plate; the main body of the second driving mechanism is connected to the second driving screw rod driving connection to drive the second driving screw rod to rotate; Both the first acoustic wave sensor assembly and the second acoustic wave sensor assembly are sleeved on the second driving screw; wherein, the second acoustic wave sensor assembly is threadedly connected to the second driving screw, so that the said second acoustic wave sensor assembly is movable along said mechanical measurement mechanism; Preferably, the second driving screw is parallel to the first guiding shaft; and when there are two first guiding shafts, the second driving screw is located between the two first guiding shafts. 7. The fiber orientation measuring instrument according to claim 6, wherein the first acoustic wave sensor assembly comprises: A first sensor bracket, the first sensor bracket is used to install the acoustic wave sensor; A fixed bracket, the fixed bracket is sleeved on the first guide shaft and the second driving screw; and the fixed bracket is connected to the lower end of the first sensor bracket, so that the first sensor bracket is positioned at the horizontal scale above; Preferably, the first acoustic wave sensor assembly is arranged close to the first vertical plate. 8. The fiber orientation measuring instrument according to claim 7, wherein the second acoustic wave sensor assembly comprises: A second sensor bracket, the second sensor bracket is used to install the acoustic wave sensor; A movable bracket, the movable bracket is sleeved on the first guide shaft and the second driving screw, and the movable bracket is threadedly connected with the second driving screw, so that it can be driven by the transverse drive assembly Move along the first guide shaft and the second driving screw; wherein, the movable bracket is connected to the lower end of the second sensor bracket, so that the second sensor bracket is located above the horizontal scale; Preferably, the second acoustic wave sensor assembly is arranged close to the second vertical board; the second driving body is installed on the second vertical board; and the wire lifting and lowering assembly is connected to the second vertical board. 9. The fiber orientation measuring instrument according to claim 8, characterized in that, the lower ends of the first sensor bracket and the second sensor bracket are connected with pointers, and the pointers point to the scale of the horizontal scale. 10. The fiber orientation measuring instrument according to any one of claims 1-9, characterized in that, the mechanical measuring mechanism is provided with a controller, wherein, The controller is connected with the lateral drive assembly and the lifting wire assembly, and is used to control the lateral drive assembly to adjust the distance between the first acoustic wave sensor assembly and the second acoustic wave sensor assembly, and to control the lift when the distance is adjusted. The wire lifting component lifts the tow to be tested, and after the adjustment is completed, controls the lifting and lowering component to move the lifted tow to the original position; The measuring instrument body also includes an electronic system, and the electronic system also includes a computer program; preferably, the controller is automatically controlled by the computer program.