CN106769413B

CN106769413B - Water bath single fiber strength testing device

Info

Publication number: CN106769413B
Application number: CN201611272544.9A
Authority: CN
Inventors: 马建伟; 藏小影
Original assignee: Qingdao University
Current assignee: Qingdao University
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2020-03-27
Anticipated expiration: 2036-12-30
Also published as: CN106769413A

Abstract

The invention discloses a water bath single fiber strength testing device which comprises a testing platform, a fiber bath in the middle of the testing platform, a left clamp and a movable clamp which are positioned in the fiber bath, a force measuring unit connected with the left clamp, a strength controller connected with the movable clamp and a central controller. The invention discloses a water bath single fiber strength testing device which can meet the test requirements of single fibers or bundle fibers on breaking, elongation elasticity, load elasticity, relaxation, creep deformation and the like in a water bath environment and has the characteristics of high intelligent degree, high measurement precision and the like.

Description

Water bath single fiber strength testing device

Technical Field

The invention relates to the technical field of single fiber strength testing devices, in particular to a water bath single fiber strength testing device.

Background

The electronic single-fiber strength tester is an apparatus for evaluating the technical index of fiber tensile property, and is also called as an electronic single-fiber strength tester. The existing electronic single fiber strength tester has simple functions and single test item, and can not well meet the single fiber water bath strength test, thereby causing inaccurate or missing water bath fiber test data and causing adverse effects on single fiber products.

Chinese patent document CN205003026U discloses an electronic single fiber strength tester, which comprises a casing, a lifting mechanism, a clamper, and an electrical control system, wherein the clamper comprises a pneumatic clamper and a manual clamper capable of replacing the pneumatic clamper, the pneumatic clamper comprises a fixed upper pneumatic clamper and a lower pneumatic clamper driven by the lifting mechanism, and further comprises an electromagnetic valve for controlling the upper pneumatic clamper and the lower pneumatic clamper to act, and the electromagnetic valve, the lifting mechanism, and the stress sensor are all connected with the electrical control system. The electronic single fiber strength tester has the characteristics of high measurement precision, good intelligent function and the like, and can simply test the strength when the tester cannot meet the measurement requirement of single fibers in the environment.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a water bath single fiber strength testing device which can meet the test requirements of single fibers or bundle fibers on breakage, extension elasticity, load elasticity, relaxation, creep and the like in a water bath environment and has the characteristics of compact structure, high intelligent degree, high measurement precision and the like.

The technical scheme of the invention is realized as follows:

a water bath single fiber strength testing device comprises a testing platform, a fiber bath in the middle of the testing platform, a left clamp and a movable clamp in the fiber bath, a force measuring unit connected with the left clamp, a strength controller connected with the movable clamp and a central controller; the force measuring unit and the strength controller are respectively positioned on two sides of the fiber bath, and are fixed on the test board; the force measuring unit and the strength controller are electrically connected with the central controller.

Preferably, the fiber bath is configured as a double-layer tank; the fiber bath comprises a sample bath and a heating bath, the sample bath is arranged in the heating bath, and the clamping hand of the left clamp holder and the clamping hand of the movable clamp holder are both positioned in the sample bath.

Preferably, the bottom of the sample bath tank is provided with at least one ultrasonic generator, the ultrasonic generator is electrically connected with the central controller and is used for creating a vibration water bath environment for the fiber to be detected, wherein the vibration frequency is 20-50 kh, and the water temperature is 100 ℃.

Preferably, the testing device further comprises a constant temperature water tank for circularly heating water in the heating bath tank, wherein the constant temperature water tank is located at the bottom of the testing table and is connected with the heating bath tank through a connecting pipe.

Preferably, a bath cover matched with the fiber bath is arranged above the fiber bath, and the bath cover is rotatably connected with a fixing table above the test table.

Preferably, the testing device further comprises a temperature controller for controlling the temperature of the fiber water bath, the temperature controller is located on one side of the powerful controller, the temperature controller is electrically connected with the central controller, and a liquid crystal display is arranged on the central controller.

Preferably, the testing device further comprises a lifting driver for driving the fiber bath to move up and down, and a power output end of the lifting driver is connected with the fiber bath.

Preferably, a ball screw is arranged in the power controller and used for power transmission of the fiber performance test.

Preferably, the testing device further comprises a universal adjuster for adjusting the height or the direction, and the universal adjuster is fixed on the bottom surface of the testing table.

Compared with the prior art, the invention has the beneficial effects that:

the water bath single fiber strength testing device provided by the invention is characterized in that a testing platform is provided with a fiber bath tank, a left clamp, a movable clamp, a strength controller, a central controller and other structures, and particularly the fiber bath tank can provide a stable and constant-temperature water bath environment, so that the water bath single fiber strength testing device can meet the testing requirements of single fibers or bundle fibers in tests such as a breaking test, an extension elasticity test, an extension repeated tensile test, a load elasticity test, a load repeated tensile test, an increasing fixed load repeated test, a relaxation test, a creep test and the like in the water bath environment. The central controller of the water bath single fiber strength testing device has higher intellectualization, is also provided with the liquid crystal display and has the function of connecting a PC, thereby leading the water bath single fiber strength testing device to have higher intellectualization degree and higher detection precision.

Drawings

FIG. 1 is a schematic structural diagram of a water bath single fiber strength testing device provided by an embodiment of the present invention;

reference numerals:

1. a test bench; 2. a fiber bath; 20. a universal adjuster; 21. a sample bath; 22. a heating bath tank; 23. an ultrasonic generator; 3. a left gripper; 30. a bath cover; 4. a movable clamper; 5. a force measuring unit; 6. a power controller; 7. a central controller; 8. a constant temperature water tank; 9. a connecting pipe; 10. a temperature controller; 11. and a fixed platform.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the attached figure 1, the invention provides a water bath single fiber strength testing device which comprises a testing table 1, a fiber bath 2, a left clamp 3, a movable clamp 4, a force measuring unit 5, a strength controller 6 and a central controller 7. The fiber bath 2 is located in the middle of the test board 1 and fixed on the upper surface of the test board 1, the clamping hand of the left clamp holder 3 and the clamping hand of the movable clamp holder 4 are located inside the fiber bath 2, and the left clamp holder 3 and the movable clamp holder 4 can realize any distance to meet the test requirements of different fibers. The force measuring unit 5 and the strength controller 6 are positioned on two sides of the fiber bath 2, and the force measuring unit 5 and the strength controller 6 are fixed on the test board 1; the force measuring unit 5 is connected with the left holder 3, specifically, the force measuring unit 5 is connected with a convex bend formed by a connecting rod of the left holder 3, and a part of the left side of the fiber bath 2 is inserted into the convex bend; the strong controller 6 is connected with the movable clamper 4, specifically, the strong controller 6 is connected with a right-angle bend formed by a connecting rod of the movable clamper 4, and a part of the right side of the fiber bath 2 is inserted in the right-angle bend; the force measuring unit 5 and the powerful controller 6 are both electrically connected with the central controller 7 and controlled by the central controller 7; due to the arrangement of the structures of the fiber bath 2, the left clamp 3, the movable clamp 4, the force measuring unit 5, the strength controller 6, the central controller 7 and the like, particularly, the fiber bath 2 can provide a stable constant-temperature water bath environment, so that the water bath single fiber strength testing device can meet the testing requirements of single fibers or bundle fibers in tests such as a breaking test, an extension elasticity test, an extension repeated tensile test, a load elasticity test, a load repeated tensile test, an incremental fixed load repeated test, a relaxation test, a creep test and the like in the water bath environment.

Preferably, the basic parameters of the water bath single fiber strength testing device are as follows:

1. measurement range: 200 cN; 2. division value: 0.01 cN; 3. error of force value: plus or minus 1 percent; 4. gauge length: 5-60 mm is set arbitrarily; 5. elongation measurement range: not more than 90 mm; 6. elongation measurement error: less than or equal to 0.05 mm; 7. stretching speed: 3-200 mm/min is set arbitrarily; 8. water temperature range: room temperature + 10-99.9 ℃, set by a user; 9. time range of constant temperature water bath: 1S to 36000S.

In order that the sample is not pushed by the water in the fiber bath 2 during heating, the fiber bath 2 is configured as a double-layer bath, the fiber bath 2 includes a sample bath 21 and a heating bath 22, the sample bath 21 is located inside the heating bath 22, and the holding hand of the left gripper 3 and the holding hand of the manual gripper 4 are both located in the sample bath 21. Therefore, the fiber to be measured is placed in the sample bath 21, the sample bath 21 is positioned in the heating bath 22, when the water in the heating bath 22 is heated, the water in the heating bath 22 flows without influencing the water in the sample bath 21, so that the water bath single fiber strength testing device is ensured to have a stable water bath environment, and the data measurement precision is greatly improved.

In order to facilitate the water bath single fiber strength testing device to complete mechanical experiments such as fracture and the like in a vibration environment, at least one ultrasonic generator 23 is arranged at the bottom of the sample bath 21, the ultrasonic generator 23 is electrically connected with the central controller 7 and is used for creating a vibration water bath environment for the fiber to be tested, wherein the vibration frequency is 20-50 kh, and the water temperature is 100 ℃; preferably, five ultrasonic generators 23 are arranged at the bottom of the sample bath 21 according to the width of the fiber bath 2, so that a vibration water bath environment can be created for the fiber to be measured in a balanced manner.

In order to enable the heating bath 22 to have circulating water with constant temperature, the water bath single fiber strength testing device further comprises a constant temperature water tank 8, the constant temperature water tank 8 is used for circularly heating the water in the heating bath 22, the constant temperature water tank 8 is located at the bottom of the testing table 1, the constant temperature water tank 8 is connected with the heating bath 22 through a connecting pipe 9, and the constant temperature water tank 8 provides continuous and stable circulating constant temperature water for the heating bath 22.

In order to meet the requirement that a part of experimental water bath single fiber strength testing device needs to be in a closed state, a bath cover 30 matched with the fiber bath 2 is arranged above the fiber bath 2, and the bath cover 30 is rotatably connected with the fixing table 11 above the test table 1. The rotatable connection of the bath cover 30 and the fixed platform 11 can enable the bath cover 30 to perform turnover movement relative to the fixed platform 11, so that the fiber to be tested can be conveniently put in or taken out.

In order to make the temperature of the sample water bath environment constant, the water bath fiber strength testing device further comprises a temperature controller 10, the temperature controller 10 is used for controlling the single fiber water bath temperature, the temperature controller 10 is located on one side of the strength controller 6, the temperature controller 10 is electrically connected with a central controller 7, a liquid crystal display is arranged on the central controller 7, and the temperature of the single fiber water bath of the liquid crystal display can be conveniently known by a tester in real time.

In order to ensure that the fiber bath 2, the left clamp 3, the movable clamp 4 and the bath cover 30 of the water bath single fiber strength testing device have reasonable distances, the water bath single fiber strength testing device also comprises a lifting driver which is used for driving the fiber bath 2 to move up and down, and the power output end of the lifting driver is connected with the fiber bath 2 so as to drive the fiber bath 2 to move in a translation way.

In order to enable the water bath single fiber strength testing device to have accurate measuring accuracy, a ball screw is arranged in the strength controller 6 and used for carrying out power transmission on fiber performance testing, and the ball screw adopts a linear guide rail, so that the water bath single fiber strength testing device has the characteristics of being fine in matching, free of gaps, good in noise silencing effect and the like.

In order to properly adjust the height of the test bench 1 and ensure that the test bench 1 is in a horizontal state, the water bath single fiber strength test device further comprises a universal adjuster 20, the universal adjuster 20 is used for adjusting the height or direction of the test bench 1, and the universal adjuster 20 is fixed on the bottom surface of the test bench 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A water bath single fiber strength testing device is characterized in that: the testing device comprises a testing platform, a fiber bath in the middle of the testing platform, a left clamp and a movable clamp in the fiber bath, a force measuring unit connected with the left clamp, a powerful controller connected with the movable clamp and a central controller; the force measuring unit and the strength controller are respectively positioned on two sides of the fiber bath, and are fixed on the test board; the force measuring unit and the strength controller are both electrically connected with the central controller, and the fiber bath tank is configured into a double-layer tank; the fiber bath includes sample bath and heating bath the inside of heating bath is provided with the sample bath, the centre gripping hand of left side holder the centre gripping hand that moves the holder all is located the sample bath is internal, testing arrangement is still including being used for the drive the lift driver that the fiber bath reciprocated, the power take off of lift driver with the fiber bath links to each other, testing arrangement is still including being used for right the constant temperature water tank that the internal hydrologic cycle of heating bath was heated, constant temperature water tank is located the bottom of testboard, and through the connecting pipe with the heating bath links to each other, fiber bath top be equipped with the bath lid of fiber bath looks adaptation, bath lid with the fixed station rotatable coupling of testboard top, the inside ball screw that is provided with of powerful controller, ball screw is used for carrying out power transmission to fiber performance test, the testing device further comprises a universal adjuster used for adjusting the height or the direction, and the universal adjuster is fixed on the bottom surface of the testing table.

2. The water bath single fiber strength testing device according to claim 1, wherein: the test sample bath tank is characterized in that at least one ultrasonic generator is arranged at the bottom of the test sample bath tank, and the ultrasonic generator is electrically connected with the central controller and used for creating a vibration water bath environment for fibers to be tested, wherein the vibration frequency is 20-50 kh, and the water temperature is 100 ℃.