Automatic fabric stiffness testing instrument

Abstract

The utility model discloses an automatic fabric stiffness testing instrument which comprises a base, a cover body, a clamp, an image shooting device, a heating device and a temperature control device, the cover body covers the top of the base, and a test space is formed between the cover body and the base; the clamp is vertically arranged in the test space, and the top of the clamp is used for clamping and fixing the fabric; the image shooting device is also arranged in the test space and is used for shooting and recording the stiffness state of the fabric clamped on the clamp; the heating device is arranged in the base and is used for heating the environment temperature in the test space; and the temperature control device is arranged in the test space, is electrically connected to the heating device and is used for monitoring and controlling the environment temperature in the test space. Therefore, by arranging the independent testing space, the environment temperature can be adjusted, and the fabric stiffness can be automatically tested and recorded in different temperature environments through the image shooting device, so that the manpower is saved, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric stiffness testing, in particular to an automatic fabric stiffness testing instrument. Background Art

[0002] The filter cartridges in a bag filter are usually made of filter materials. The soft filter materials have a certain stiffness after being treated with a stiffening agent, and then are made into the filter cartridges through processes such as folding and cutting. For the stiff filter materials used for filter cartridges, their stiffness is a hard index related to whether the filter materials can maintain the folded shape and the use in actual working conditions.

[0003] In the prior art, a fabric stiffness tester is an instrument for testing fabric stiffness. At present, when a fabric stiffness testing device using the bending length as the stiffness index tests the fabric stiffness, it mainly relies on manual measurement or infrared measurement to obtain it, with low accuracy, and does not have the function of testing at high temperature or other temperatures, and the instrument cannot analyze the obtained data. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic fabric stiffness testing instrument, which can realize the automatic testing of fabric stiffness in different temperature environments, and has the advantages of convenient use, improved testing efficiency and labor saving.

[0005] To achieve the above purpose, the solution of the utility model is:

[0006] An automatic fabric stiffness testing instrument, comprising a base, a cover body, a fixture, an image shooting device, a heating device and a temperature control device;

[0007] The cover body covers the top of the base, and a testing space is formed between the two;

[0008] The fixture is erected in the testing space, and the top of the fixture is used for clamping and fixing the fabric;

[0009] The image shooting device is also arranged in the testing space, and is used for shooting and recording the stiffness state of the fabric clamped on the fixture;

[0010] The heating device is installed in the base and is used for heating the environmental temperature in the testing space;

[0011] The temperature control device is arranged in the testing space and is electrically connected to the heating device, and is used for monitoring and controlling the environmental temperature in the testing space.

[0012] Further, the fixture includes a fixture body and a clamping block. The clamping block is detachably mounted on the top of the fixture body. One end of the fabric is clamped between the clamping block and the fixture body, and the other end of the fabric extends outward. The side wall of the fixture body adjacent to the fabric is a vertical plane. The image capturing device is spaced apart from one side of the fixture, and the vertical plane of the fixture body captured by the image capturing device is a straight line.

[0013] Further, two spaced convex columns protrude from the top of the fixture body. External threads are provided on the convex columns. The clamping block is provided with through holes corresponding to the two convex columns, and the through holes of the clamping block are for the convex columns to pass through. After the convex columns pass upward through the through holes of the clamping block, fixing nuts are installed to detachably lock and fix the clamping block to the top of the fixture body.

[0014] Further, the image capturing device is a surveillance camera.

[0015] Further, a base space is provided inside the base, and the heating device is arranged in the base space. The heating device includes a blower, a heating wire and a heating power supply. The heating power supply is used to control the heating wire to generate heat. A ventilation port is provided on the base to communicate with the base space, and the air outlet of the blower is arranged at the top of the base space and communicates with the test space. The air inlet of the blower is opposite to the heating wire for sending the air heated by the heating wire into the test space. The fixture, the fabric and the air outlet are spaced apart.

[0016] Further, the temperature control device includes a temperature sensor and a controller. The controller is electrically connected to the temperature sensor, the blower and the heating power supply. The controller is used to set the ambient temperature, and monitor the ambient temperature in real time and control the opening and closing of the blower and the heating power supply.

[0017] Further, the image capturing device is communicatively connected to a computer.

[0018] Further, the image capturing device is arranged on the side wall of the cover body, and a signal interface is provided on the outer wall of the cover body and electrically connected to the image capturing device. The signal interface is used to be electrically connected to the computer through a data line.

[0019] After adopting the above technical solution, by setting up an independent test space, the ambient temperature can be adjusted. And through the image capturing device, the automatic recording of the stiffness of the fabric clamped by the fixture can be realized under different temperatures (such as a high temperature environment of 250 degrees Celsius), so as to save manpower and improve the test efficiency. Then, through the subsequent data processing, accurate test results of the stiffness of the fabric (filter material) at different temperatures can be obtained. Through the stiffness, it can be judged whether the stiff filter material can maintain the wrinkled state, which is convenient for predicting the actual working conditions of the filter cartridge and improving the performance of the filter cartridge, etc. Description of the Drawings

[0020] Figure 1 A schematic diagram of an embodiment of the present utility model;

[0021] Figure 2 A schematic diagram of a heating wire and a power supply according to an embodiment of the present invention;

[0022] Figure 3 A three-dimensional schematic diagram of a clamp and filter material according to an embodiment of the present utility model;

[0023] Figure 4 for Figure 3 Exploded view of

[0024] Figure 5 This is a schematic diagram of the shooting surface of the clamp and filter material in an embodiment of the present utility model.

[0025] Explanation of reference numerals: base 1, cover 2, fixture 3, fixture body 31, vertical plane 311, boss 312, clamp 32, through hole 321, fixing nut 33, image capture device 4, heating device 5, fan 51, air outlet 511, heating wire 52, heating power supply 53, temperature control device 6, temperature sensor 61, controller 62, test space 7, fabric 8, signal interface 9, line B, feature point A. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] like Figure 1 As shown, the utility model is an automatic fabric stiffness testing instrument, which includes a base 1, a cover 2, a clamp 3, an image capture device 4, a heating device 5 and a temperature control device 6.

[0028] The cover body 2 is covered on the top of the base 1, and a test space 7 is formed between the two; the clamp 3 is upright in the test space 7, and the top of the clamp 3 is used to clamp and fix the fabric 8. The fabric 8 in this embodiment is a filter cartridge filter material; the image recording device 4 is also provided in the test space 7, for recording the stiffness state of the fabric 8 clamped on the clamp 3; the heating device 5 is installed in the base 1, for heating the ambient temperature in the test space 7; the temperature control device 6 is provided in the test space 7 and is electrically connected to the heating device 5, for monitoring and controlling the ambient temperature in the test space 7.

[0029] Thus, by setting up an independent test space 7, the ambient temperature can be adjusted, and with the image capturing device 4, the stiffness of the fabric 8 clamped by the fixture 3 can be automatically recorded under different temperatures (such as a high-temperature environment of 250 degrees Celsius). Through subsequent data processing, accurate test results of the stiffness of the fabric 8 (filter media) at different temperatures can be obtained, facilitating the prediction of the actual working conditions of the filter cartridge and the improvement of its performance, etc.

[0030] Specifically, as Figure 1 , in this embodiment, the base 1 can be in the shape of a rectangular body, and the cover 2 can also be in the shape of a rectangular body. Moreover, the bottom of the cover 2 has a cavity to form the test space 7; the fixture 3 can be erected on the base 1. The image capturing device 4 can be a surveillance camera.

[0031] The fixture 3 includes a fixture main body 31 and a clamping block 32. The clamping block 32 is detachably mounted on the top of the fixture main body 31. Between the clamping block 32 and the fixture main body 31 is used to clamp one end of the fabric 8, and the other end of the fabric 8 extends outwards. The fabric 8 can be in a long strip shape. Thus, according to the bend generated at the outer end of the other end of the fabric 8, the stiffness of the fabric 8 can be tested.

[0032] Meanwhile, in this embodiment, the side wall of the fixture main body 31 adjacent to the fabric 8 can be a vertical plane 311; the image capturing device 4 is arranged at one side of the fixture 3 at intervals, and makes the vertical plane 311 of the fixture main body 31 captured by the image capturing device 4 be a straight line.

[0033] Specifically, in this embodiment, the fixture 3 and the image capturing device 4 can be placed at intervals front and back. The image capturing device 4 can be placed directly opposite the rear side of the fixture 3. The vertical plane 311 of the fixture 3 body can be located on the right side of the fixture 3, and the outer end of the fabric 8 can extend to the right.

[0034] Thus, referring to Figure 5 , for the picture captured by the image capturing device 4, the vertical plane 311 of the fixture 3 will be compressed into a line B in two dimensions. Using image recognition technology (before the device leaves the factory, through a built-in program, the image capturing device 4 is made to have the image recognition function), with the outer end point of the fabric 8 as the feature point A, the set of n points on the line B is taken as the set S1. Select one point on the set S1 and the point A as a pair (point pair), denoted as P1 = (X1, A), P2 = (X2, A) … P n =(X n , A), and then recursively find the point pair with the minimum distance in the point pairs. Take the distance between these two point pairs as the minimum distance from the feature point A to the line B, and take this minimum distance as the bending resistance distance, which is used as the stiffness of the fabric 8; the range of the bending resistance distance that can be tested is 5 - 30 cm, and the range of the width of the fabric (filter media) sample that can be tested is 1 - 5 cm.

[0035] Specifically, the image capturing device 4 can be communicatively connected to a computer (not shown in the figure) to improve the degree of automation. This communicative connection can be a wired or wireless connection. By using the computer to automatically analyze and process the data recorded by the image capturing device 4, after a certain number of same-condition experiments, different mathematical models can be established for different types of fabrics 8 (filter materials) with data such as bending length and fabric size as parameters. In subsequent tests, for testing a certain fabric 8 (filter material), the obtained mathematical model can be used to determine whether the result of this test is abnormal and automatically eliminate the abnormal data.

[0036] In this embodiment, the image capturing device 4 is disposed on the inner sidewall of the cover 2, and a signal interface 9 is provided on the outer wall of the cover 2 and electrically connected to the image capturing device 4; the signal interface 9 is used to be electrically connected to the computer through a data line B. In this way, a wired connection is achieved.

[0037] For another example Figure 3 and Figure 4 , on one side of the top of the fixture main body 31, two spaced convex columns 312 protrude, and external threads are provided on the convex columns 312; through holes 321 corresponding to the two convex columns 312 are provided on one side of the clamping block 32, and the through holes 321 of the clamping block 32 are for the convex columns 312 to pass through; after the convex columns 312 pass upward through the through holes 321 of the clamping block 32, fixing nuts 33 are installed to detachably lock and fix the clamping block 32 to the top of the fixture main body 31; between the other side of the top of the fixture main body 31 and the other side of the clamping block 32 is used to clamp one end of the fabric 8.

[0038] For example Figure 1 and Figure 2 , a base space (not shown in the figure) is provided inside the base 1, and the heating device 5 is disposed in the base 1 space; the heating device 5 includes a blower 51, a heating wire 52, and a heating power supply 53; the heating power supply 53 is used to control the heating wire 52 to generate heat; a ventilation port is provided on the base 1 to communicate with the base space (not shown in the figure), and the air outlet 511 of the blower 51 is disposed at the top of the base space and communicates with the test space 7, and the air inlet (not shown in the figure) of the blower 51 faces the heating wire 52 to send the air heated by the heating wire 52 into the test space 7; the fixture 3, the fabric 8, and the air outlet 511 are spaced apart to prevent the wind from the air outlet 511 from affecting the fabric 8.

[0039] Furthermore, the temperature control device 6 may include a temperature sensor 61 and a controller 62. The controller 62 is electrically connected to the temperature sensor 61, the blower 51, and the heating power supply 53; the controller 62 is used to set the ambient temperature, and monitor the ambient temperature in real time and control the opening and closing of the blower 51 and the heating power supply 53. This part can refer to the prior art.

[0040] Of course, the controller 62 can also be directly integrated with a computer to form a runnable computer program for implementing temperature control, data processing and calculation, recording of test results, etc. in the computer program.

[0041] In summary, the working process of the embodiment of the present utility model can be as follows:

[0042] After the operator sets the environmental temperature and fabric sample parameters in the computer program interface, places the pre-treated fabric sample on the fixture 3 body, covers the clamping block 32, and screws on the fixing nut 33, the image capturing device 4 captures the fabric sample situation and transmits it to the computer. Through software calculation, the stiffness of the fabric sample at room temperature is obtained. Subsequently, the heating device 5 starts to heat up, conveys hot air into the test space 7 through the blower 51, and is regulated by the temperature control device 6. When the specified temperature is reached, a second test is carried out to obtain the stiffness of the fabric 8 at the current temperature. After the test is completed, the program checks the measured data and eliminates abnormal data.

[0043] The above is only the preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, equivalent changes and modifications made without departing from the principle of the present utility model should still fall within the protection scope of the present utility model.

[0044] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0045] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

Claims

1. An automatic fabric stiffness testing instrument, characterized in that: It includes a base, a cover, a fixture, an image capturing device, a heating device and a temperature control device; The cover is disposed on the top of the base, and a testing space is formed between the two; The fixture is erected in the testing space, and the top of the fixture is used for clamping and fixing the fabric; The image capturing device is also disposed in the testing space, and is used for capturing and recording the stiffness state of the fabric clamped on the fixture; The heating device is installed in the base and is used for heating the environmental temperature in the testing space; The temperature control device is disposed in the testing space and is electrically connected to the heating device, and is used for monitoring and controlling the environmental temperature in the testing space.

2. The automatic fabric stiffness testing instrument according to claim 1, characterized in that: The fixture includes a fixture main body and a clamping block. The clamping block is detachably installed on the top of the fixture main body. One end of the fabric is clamped between the clamping block and the fixture main body, and the other end of the fabric extends outwards; the side wall of the fixture main body adjacent to the fabric is a vertical plane; the image capturing device is spaced apart from one side of the fixture, and the vertical plane of the fixture main body captured by the image capturing device is a straight line.

3. An automatic fabric stiffness testing instrument according to claim 2, characterized in that: Two spaced convex columns protrude from the top of the fixture main body, and external threads are provided on the convex columns; through holes corresponding to the two convex columns are provided on the clamping block, and the through holes of the clamping block are for the convex columns to pass through; after the convex columns pass through the through holes of the clamping block upwards, fixing nuts are installed to detachably lock and fix the clamping block to the top of the fixture main body.

4. An automatic fabric stiffness testing instrument according to claim 1 or 2, characterized in that: The image capturing device is a surveillance camera.

5. The automatic fabric stiffness testing instrument according to claim 1, characterized in that: There is a base space in the base, and the heating device is disposed in the base space; the heating device includes a blower, a heating wire and a heating power supply; the heating power supply is used for controlling the heating wire to generate heat; a ventilation port is provided on the base to communicate with the base space, and the air outlet of the blower is disposed at the top of the base space and communicates with the testing space, and the air inlet of the blower is opposite to the heating wire, and is used for sending the air heated by the heating wire into the testing space; the fixture and the fabric are spaced apart from the air outlet.

6. An automatic fabric stiffness testing instrument according to claim 5, characterized in that: The temperature control device includes a temperature sensor and a controller. The controller is electrically connected to the temperature sensor, the blower and the heating power supply; the controller is used for setting the environmental temperature, and for monitoring the environmental temperature in real time and controlling the opening and closing of the blower and the heating power supply.

7. An automatic fabric stiffness testing instrument according to claim 1, characterized in that: The image capturing device is communicatively connected to a computer.

8. An automatic fabric stiffness testing instrument according to claim 7, characterized in that: The image capturing device is disposed on the side wall of the cover, and a signal interface is provided on the outer wall of the cover and is electrically connected to the image capturing device; the signal interface is used for electrically connecting to the computer through a data cable.

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