Full-automatic twist tester

Abstract

The invention is applicable to the field of textile detection, and provides a full-automatic twist tester which is characterized in that a base plate, a tripod and a testboard are fixedly arranged in a machine frame, the base plate, the tripod and the testboard are integrally formed, and a pay-off assembly and a clamping assembly are arranged at the top end of the base plate; a tension adjusting mechanism is arranged between the pay-off assembly and the clamping assembly. A yarn untwisting assembly is arranged at the top end of the testing table, and an untwisting blocking mechanism is arranged at the top end of the tripod. When the yarn twisting device is used, yarn to be processed is divided into two twisted strips from the discharging roller, the ends of the two twisted strips are fixed to the expansion block, meanwhile, the servo motor drives the driven rotary disc to rotate through the driving wheel disc and the lattice strip belt, and the rotating wheel can synchronously rotate along with the driven rotary disc; the rotation speed of the driving wheel disc and the rotation speed of the driven wheel disc are one to two, and the number of turns of the driving wheel disc is divided by two to obtain the number of untwisting twists.

Description

Technical Field

[0001] The invention belongs to the field of textile testing, and in particular relates to a full-automatic twist tester. Background Art

[0002] With the development of industrial technology, modern textile testing technology has become more and more perfect. The twist of yarn is one of the important indicators to measure its quality and performance. Traditional twist test methods are mostly manual operations, with problems such as low test efficiency, low precision, and complex operation. At the same time, although some existing automated testing instruments have improved the test efficiency to a certain extent, they still have shortcomings such as unstable test accuracy, complex equipment, and high maintenance costs. Therefore, it is of great significance to develop an efficient, accurate, and fully automated yarn twist tester; Patent CN207780022U discloses a yarn twist testing device. This patent has a roller clamping assembly and a control device on the body base, and a movable roller tension adjustment assembly is installed on the guide rail; the roller clamping assembly includes two rollers arranged up and down, and the roller tension adjustment assembly includes an active roller and a driven roller, the two rollers rotate synchronously and in opposite directions, and the roller surface is made of rubber material; the control device includes a roller clamping control device, a roller tension adjustment control device and a yarn length control device. This patent uses different roller assemblies to clamp and adjust the tension of the yarn respectively, replacing the traditional chuck-type clamping components and weight-type tension adjustment components. The roller clamping assembly ensures that the yarn can be firmly clamped, and the roller tension adjustment assembly realizes automatic control of the yarn tension, thereby improving the test accuracy and realizing the automated test of the yarn twist; The device still has defects when in use. First, the twist counting method of the device is relatively complicated, which makes it easy for counting errors to occur. Second, the tension adjustment of the device is relatively rigid. If the strength of the yarn is not well controlled, it will break, affecting the detection process. Summary of the invention

[0003] The purpose of the present invention is to provide a fully automatic twist tester to address the deficiencies in the prior art. When in use, the device separates the yarn to be processed from the discharge roller into two twist strips, and fixes the ends of the two twist strips to the expansion block. At the same time, the servo motor drives the driven turntable to rotate through the driving wheel and the grid belt, and the turntable will rotate synchronously with the driven turntable, and then the two expansion blocks on the side wall of the turntable start the untwisting operation. The rotation speed of the driving wheel and the driven turntable is one to two, and then the number of turns of the driving wheel divided by two is the number of twists for untwisting, thereby solving the problems mentioned in the background technology.

[0004] In order to solve the above problems, the present invention provides the following technical solutions: a fully automatic twist tester, comprising a machine frame, a base plate, a tripod and a test bench are fixedly arranged inside the machine frame, the base plate, the tripod and the test bench are integrally formed, a wire-releasing assembly and a clamping assembly are arranged on the top of the base plate, a tension adjustment mechanism is arranged between the wire-releasing assembly and the clamping assembly, an observation window is arranged on one side of the machine frame, tempered glass is arranged inside the observation window, and a cover plate is arranged on the top port of the machine frame; a yarn untwisting assembly is arranged on the top of the test bench, and the yarn untwisting assembly is arranged on the top of the test bench. A detwisting blocking mechanism is arranged at the top of the tripod; the yarn detwisting assembly comprises an axle seat at the top of the test bench, a rotating wheel is arranged on the axle seat facing the side of the base plate, a transverse axis inserted into the interior of the axle seat is arranged at the center of the rotating wheel, the outer end of the transverse axis is connected to the twist counting assembly, an expansion groove is arranged on the side wall of the rotating wheel, two expansion blocks are slidably installed inside the expansion groove, the yarn is pulled out from the pay-off assembly, the yarn is decomposed into two forked lines, the forked lines are respectively connected to the expansion blocks, and a thread end fixing assembly is arranged on the expansion block.

[0005] Furthermore, the torsion counting assembly includes a driven turntable at the inner end of the transverse axis, a servo motor is fixedly installed on the top of the test bench, a driving wheel is installed at the output end of the servo motor, the driving wheel and the driven turntable are connected by a grid belt, and the ratio of the diameter of the driving wheel to the diameter of the driven turntable is one to two.

[0006] Furthermore, the thread end fixing assembly includes two sliding channels inside the expansion block, a pressing frame is slidably installed inside the sliding channel, the forked line ends of the yarn are inserted into the gap between the right end of the pressing frame and the right side wall of the expansion block, a nut block is provided at the left end of the pressing frame, a hexagon socket bolt is rotatably provided inside the nut block, the end of the hexagon socket bolt abuts against the left side wall of the expansion block, and a tensioning groove matching the pressing frame is provided on the side wall of the rotating wheel.

[0007] Furthermore, the pay-off assembly includes a pay-off frame at the top of the base plate, a pay-off roller is rotatably arranged in the middle of the pay-off frame, the yarn is pulled out from the outside of the pay-off roller, and a locking valve is arranged on the side wall of the pay-off frame.

[0008] Furthermore, the clamping assembly comprises a roller clamping frame, and two pressing rollers are rotatably arranged in the middle of the roller clamping frame, and the two pressing rollers are respectively connected to the output shafts of two tensioning motors.

[0009] Furthermore, the tension adjustment mechanism includes a tension channel in the middle of the base plate, the tension channel is slidably installed with a sliding column, the top of the sliding column is provided with a hanging ring, the yarn passes through the inside of the hanging ring, and the bottom of the sliding column is provided with a counterweight box. A lifting cylinder is provided on the side wall of the tripod, and a tray is provided at the end of the telescopic rod of the lifting cylinder. The counterweight box sits on the top surface of the tray, and a plurality of rectangular array counterweight holes are provided on the counterweight box, and lead bars are installed inside the counterweight holes.

[0010] Furthermore, the untwisting blocking mechanism includes a guide rail at the top of a tripod, a slider is provided on the guide rail, a blocking cylinder is provided at the top of the slider, a blocking rod is provided at the top of the blocking cylinder, an electric push rod is provided on the side wall of the tripod, a pressure sensor is provided at the end of the retraction rod of the electric push rod, and the pressure sensor is fixedly connected to the side wall of the slider through a connecting frame.

[0011] Furthermore, the servo motor and the pressure sensor are connected to a computer processing module via a data link.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects: Firstly, when the device is in use, the yarn to be processed is separated from the discharge rod into two twisted strips, and the ends of the two twisted strips are fixed to the expansion block. At the same time, the servo motor drives the driven turntable to rotate through the driving wheel and the grid belt, and the turntable will rotate synchronously with the driven turntable, and then the two expansion blocks on the side wall of the turntable start the untwisting operation. The rotation speed of the driving wheel and the driven turntable is one to two, and then the number of turns of the driving wheel divided by two is the number of untwisting twists. The electric push rod drives the slider and the blocking cylinder and blocking rod at its top to move forward. The blocking rod is pushed to the bottom between the two twisted strips, and the resistance value of the pressure sensor is the same as the full twist resistance value. The length of the untwisted front divided by the number of untwisted twists can obtain the number of twists per unit length, so as to calculate the twist of the yarn. The staff can check the untwisting situation through the observation window and directly observe the occurrence of abnormal conditions.

[0013] Secondly, after the tensioning motor releases the load of the pressing rod, the lifting cylinder drives the tray to fall down, and then the counterweight box and the hanging ring on its top fall down, and then the tension of the yarn can be applied by the gravity of the counterweight box, the tension of the yarn will not be rigid, and there will be no risk of the yarn breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the machine frame of the present invention.

[0015] Figure 2 It is a schematic diagram of a cross-section of the present invention.

[0016] Figure 3It is a schematic diagram of the second viewing angle of the present invention.

[0017] Figure 4 It is a schematic diagram of a weight box of the present invention.

[0018] Figure 5 Schematic diagram of the rotating wheel of the present invention.

[0019] Figure 6 It is a schematic diagram of the tensioning wire duct of the present invention.

[0020] Figure 7 Schematic diagram of the rotating wheel of the present invention from a second viewing angle.

[0021] Figure 8 Schematic diagram of the expansion slot of the present invention.

[0022] Fig. 9 Schematic diagram of the expansion block of the present invention.

[0023] Fig.10 Schematic diagram of the electric push rod of the present invention.

[0024] Fig.11 Schematic diagram of the blocking cylinder of the present invention Description of reference numerals: Machine frame 1, observation window 101, base plate 2, tripod 201, test bench 202, counterweight box 3, lifting cylinder 301, tray 302, shaft seat 4, rotating wheel 401, lattice belt 402, servo motor 403, driving wheel disc 404, driven rotating disc 405, expansion slot 406, tensioning wire slot 407, return spring 408, unloading roller 5, locking valve 501, yarn 6, pressing roller 7, tensioning motor 701, hanging ring 8, sliding column 801, expansion block 9, pressing frame 901, hexagon socket bolt 902, electric push rod 10, pressure sensor 1001, guide rail 1002, blocking cylinder 1003, blocking rod 1004. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] The present invention provides a fully automatic twist tester, such as Figure 1-11 As shown, it includes a machine frame 1, wherein a base plate 2, a tripod 201 and a test bench 202 are fixedly arranged inside the machine frame 1, the base plate 2, the tripod 201 and the test bench 202 are integrally formed, a pay-off assembly and a clamping assembly are arranged at the top of the base plate 2, a tension adjustment mechanism is arranged between the pay-off assembly and the clamping assembly, an observation window 101 is arranged on one side of the machine frame 1, tempered glass is arranged inside the observation window 101, and a cover plate is arranged at the top port of the machine frame 1; a yarn untwisting assembly is arranged at the top of the test bench 202, and an untwisting mechanism is arranged at the top of the tripod 201 Blocking mechanism; the yarn untwisting component includes an axle seat 4 at the top of the test bench 202, and a rotating wheel 401 is rotatably provided on the axle seat 4 facing the side of the base plate 2, and a transverse axis inserted into the inside of the axle seat 4 is provided at the center of the rotating wheel 401, and the outer end of the transverse axis is connected to the twist counting component, and an expansion groove 406 is provided on the side wall of the rotating wheel 401, and two expansion blocks 9 are slidably installed inside the expansion groove 406, and the yarn 6 is pulled out from the pay-off component, and the yarn 6 is decomposed into two forked lines, and the forked lines are respectively connected to the expansion blocks 9, and the expansion block 9 is provided with a thread end fixing component.

[0028] In this embodiment, after the yarn 6 is pulled out from the pay-off assembly, two twisted strips are decomposed. After the two twisted strips are fixed to the expansion block 9, the rotating wheel 401 and the expansion block 9 on its side wall drive the yarn untwisting operation. After the yarn 6 is completely untwisted, the twist counting assembly will obtain the number of untwisted turns of the yarn 6, thereby achieving the effect of automatically calculating the number of twists of the yarn 6.

[0029] In a further embodiment of the present invention, Figure 2-3 As shown, the torsion counting assembly includes a driven turntable 405 at the inner end of the horizontal axis, a servo motor 403 is fixedly installed on the top of the test bench 202, a driving wheel 404 is installed at the output end of the servo motor 403, the driving wheel 404 and the driven turntable 405 are connected by a grid belt 402, and the diameter of the driving wheel 404 and the diameter of the driven turntable 405 are in a ratio of one to two.

[0030] In this embodiment, the servo motor 403 drives the driven turntable 405 to rotate through the driving wheel 404 and the grid belt 402, and the rotating wheel 401 will rotate synchronously with the driven turntable 405, and then the two expansion blocks 9 on the side wall of the rotating wheel 401 start the untwisting operation. The rotation speed of the driving wheel 404 and the driven turntable 405 is one to two, and then the number of turns of the driving wheel 404 divided by two is the number of untwisting twists.

[0031] In a further embodiment of the present invention, Figure 6-9 As shown, the thread end fixing assembly includes two sliding channels inside the expansion block 9, and a pressing frame 901 is slidably installed inside the sliding channel. The forked line end of the yarn 6 is inserted into the gap between the right end of the pressing frame 901 and the right side wall of the expansion block 9. A nut block is provided at the left end of the pressing frame 901, and a hexagon socket bolt 902 is rotatably provided inside the nut block. The end of the hexagon socket bolt 902 abuts against the left side wall of the expansion block 9, and a tensioning groove 407 matching the pressing frame 901 is provided on the side wall of the rotating wheel 401.

[0032] In this embodiment, after the two twisted strips are inserted into the pressing frame 901, the hexagonal screw 902 is rotated by a hexagonal wrench. When the end of the hexagonal screw 902 is against the left wall of the expansion block 9, the end of the twisted strip will be locked by the right wall of the expansion block 9 and the right end of the pressing frame 901.

[0033] In a further embodiment of the present invention, Figure 1-5 As shown, the pay-off assembly includes a pay-off frame at the top of a base plate 2, a pay-off roller 5 is rotatably arranged in the middle of the pay-off frame, the yarn 6 is pulled out from the outside of the pay-off roller 5, and a locking valve 501 is arranged on the side wall of the pay-off frame.

[0034] In this embodiment, after the yarn 6 is pulled out from the unwinding roller 5, the unwinding roller 5 is locked by the locking valve 501 so that it does not rotate any more.

[0035] In a further embodiment of the present invention, Figure 1-5 As shown, the clamping assembly includes a roller clamping frame, and two pressing rollers 7 are rotatably arranged in the middle of the roller clamping frame. The two pressing rollers 7 are respectively connected to the output shafts of two tensioning motors 701.

[0036] In this embodiment, the end of the yarn 6 is inserted into the gap of the pressing roller 7, and the two tensioning motors 701 drive the two pressing rollers 7 to rotate in opposite directions to allow the yarn 6 to pass through. During the untwisting process of the yarn 6, the tensioning motor 701 drives the pressing roller 7 to reverse to apply tension to keep the yarn 6 taut. This tension adjustment method is the first tension application method.

[0037] In a further embodiment of the present invention, Figure 1-4As shown, the tension adjustment mechanism includes a tension channel in the middle of the base plate 2, and the tension channel is slidably installed with a sliding column 801. The top of the sliding column 801 is provided with a hanging ring 8, and the yarn 6 passes through the inside of the hanging ring 8. A counterweight box 3 is provided at the bottom of the sliding column 801, and a lifting cylinder 301 is provided on the side wall of the tripod 201. A tray 302 is provided at the end of the telescopic rod of the lifting cylinder 301. The counterweight box 3 sits on the top surface of the tray 302, and a plurality of rectangular array counterweight holes are provided on the counterweight box 3, and lead bars are installed inside the counterweight holes.

[0038] In this embodiment, after the tensioning motor 701 releases the load of the pressing roller 7, the lifting cylinder 301 drives the tray 302 to fall down, and then the counterweight box 3 and the hanging ring 8 at its top fall down, and then the tension of the yarn 6 can be applied by the gravity of the counterweight box 3. The tension of the yarn 6 will not be rigid, and the yarn 6 will not have the risk of breaking. The tension adjustment mechanism is the second tension application method, and the staff chooses which tension application method to use according to the detection needs.

[0039] In a further embodiment of the present invention, Figure 10-11 As shown, the untwisting blocking mechanism includes a guide rail 1002 at the top of a tripod 201, a slider is arranged on the guide rail 1002, a blocking cylinder 1003 is arranged at the top of the slider, a blocking rod 1004 is arranged at the top of the blocking cylinder 1003, an electric push rod 10 is arranged on the side wall of the tripod 201, a pressure sensor 1001 is arranged at the end of the retraction rod of the electric push rod 10, and the pressure sensor 1001 is fixedly connected to the side wall of the slider through a connecting frame.

[0040] In this embodiment, the electric push rod 10 drives the slider and the blocking cylinder 1003 and the blocking rod 1004 at its top to move forward, and the blocking rod 1004 is pushed to the bottom between the two twisted strips, and the resistance value of the pressure sensor 1001 is the same as the full twist resistance value. The length of the untwisted yarn in front is divided by the number of untwisted twists to obtain the number of twists per unit length, so as to calculate the twist of the yarn 6.

[0041] In a further embodiment of the present invention, Figure 1-11 As shown, the servo motor 403 and the pressure sensor 1001 are connected to the computer processing module via a data link.

[0042] In this embodiment, the number of revolutions of the servo motor 403 and the force value of the pressure sensor 1001 are transmitted to the computer processing module and formed into a database for record. After multiple cycles of detection, it is determined whether the twist number per unit length is too different, thereby determining whether the twist of the yarn 6 is uniform.

[0043] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0044] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0045] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A fully automatic twist tester, characterized in that: The machine frame (1) comprises a base plate (2), a tripod (201) and a test bench (202) fixedly arranged inside the machine frame (1); the base plate (2), the tripod (201) and the test bench (202) are integrally formed; a wire-releasing assembly and a clamping assembly are arranged at the top of the base plate (2); a tension adjustment mechanism is arranged between the wire-releasing assembly and the clamping assembly; an observation window (101) is arranged at one side of the machine frame (1); tempered glass is arranged inside the observation window (101); and a cover plate is arranged at the top port of the machine frame (1); A yarn untwisting assembly is provided at the top of the test bench (202), and an untwisting blocking mechanism is provided at the top of the tripod (201); The yarn untwisting component comprises an axle seat (4) at the top of the test bench (202); a rotating wheel (401) is rotatably arranged on the axle seat (4) facing one side of the base plate (2); a transverse axis inserted into the interior of the axle seat (4) is arranged at the center of the rotating wheel (401); the outer end of the transverse axis is connected to the twist counting component; an expansion groove (406) is arranged on the side wall of the rotating wheel (401); two expansion blocks (9) are slidably installed inside the expansion groove (406); a yarn (6) is pulled out from the pay-off component; the yarn (6) is decomposed into two forked lines; the forked lines are respectively connected to the expansion blocks (9); and a thread end fixing component is arranged on the expansion block (9).

2. A fully automatic twist tester according to claim 1, characterized in that: The twist counting assembly comprises a driven rotating disc (405) at the inner end of the transverse axis, a servo motor (403) is fixedly mounted on the top of the test bench (202), a driving wheel disc (404) is mounted on the output end of the servo motor (403), the driving wheel disc (404) and the driven rotating disc (405) are connected via a lattice belt (402), and the ratio of the diameter of the driving wheel disc (404) to the diameter of the driven rotating disc (405) is one to two.

3. A fully automatic twist tester according to claim 1, characterized in that: The thread end fixing assembly comprises two sliding channels inside the expansion block (9), a pressing frame (901) is slidably installed inside the sliding channel, the forked wire end of the yarn (6) is inserted into the gap between the right end of the pressing frame (901) and the right side wall of the expansion block (9), a nut block is arranged at the left end of the pressing frame (901), a hexagon socket bolt (902) is rotatably arranged inside the nut block, and the end of the hexagon socket bolt (902) abuts against the left side wall of the expansion block (9), and a tensioning wire groove (407) matching the pressing frame (901) is arranged on the side wall of the rotating wheel (401).

4. A fully automatic twist tester according to claim 1, characterized in that: The pay-off assembly comprises a pay-off frame at the top of a base plate (2), a pay-off roller (5) is rotatably arranged in the middle of the pay-off frame, the yarn (6) is pulled out from the outside of the pay-off roller (5), and a locking valve (501) is arranged on the side wall of the pay-off frame.

5. A fully automatic twist tester according to claim 1, characterized in that: The clamping assembly comprises a roller clamping frame, wherein two pressing rollers (7) are rotatably arranged in the middle of the roller clamping frame, and the two pressing rollers (7) are respectively connected to the output shafts of two tensioning motors (701).

6. A fully automatic twist tester according to claim 1, characterized in that: The tension adjustment mechanism comprises a tension channel in the middle of the base plate (2), the tension channel is slidably mounted with a sliding column (801), the top of the sliding column (801) is provided with a hanging ring (8), the yarn (6) passes through the inside of the hanging ring (8), the bottom of the sliding column (801) is provided with a counterweight box (3), the side wall of the tripod (201) is provided with a lifting cylinder (301), the end of the telescopic rod of the lifting cylinder (301) is provided with a tray (302), the counterweight box (3) sits on the top surface of the tray (302), the counterweight box (3) is provided with a plurality of rectangular array counterweight holes, and lead bars are installed inside the counterweight holes.

7. A fully automatic twist tester according to claim 2, characterized in that: The untwisting blocking mechanism comprises a guide rail (1002) at the top of a tripod (201), a slider being arranged on the guide rail (1002), a blocking cylinder (1003) being arranged at the top of the slider, a blocking rod (1004) being arranged at the top of the blocking cylinder (1003), an electric push rod (10) being arranged on the side wall of the tripod (201), a pressure sensor (1001) being arranged at the end of the retracting rod of the electric push rod (10), and the pressure sensor (1001) being fixedly connected to the side wall of the slider via a connecting frame.

8. A fully automatic twist tester according to claim 7, characterized in that: The servo motor (403) and the pressure sensor (1001) are connected to a computer processing module via a data link.

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