KR100476077B1 - Apparatus for measuring peel strength of fabric - Google Patents

Abstract

A peel strength measuring apparatus for measuring peel strength required to peel any first fabric layer from two or more fabric bonded fabric specimens is disclosed. An apparatus for measuring peel strength of fabrics includes: a specimen mount having a movable gripper firmly holding one end of the first fabric layer at one end of the fabric specimen and a fixed gripper firmly holding one end of the remaining fabric layers of the fabric specimen; A load applying unit for applying a tensile load to the movable gripper; A load measuring unit measuring a tensile load applied between the first fabric layer and the remaining fabric layer in real time; And a control unit for controlling the overall operation of the apparatus, a receiving unit receiving a measurement value from the load measuring unit, wherein the load applying unit is a motor, a belt for converting rotational force of the motor into a tensile load, and between the motor and the belt. And a roller for transmitting the rotational force of the motor to the belt. The motion of the entire component is controlled electronically and the loads on the fabric specimens are measured, displayed and stored in memory in real time.

Description

Peeling strength measuring device of fabric {APPARATUS FOR MEASURING PEEL STRENGTH OF FABRIC}

The present invention relates to a peel strength measuring apparatus for measuring peel strength required to peel any first fabric layer from a fabric specimen to which two or more fabrics are bonded. In particular, the peel strength measuring apparatus of the present invention overcomes the drawbacks of conventional uniaxial tension gauges such as Instron by electronically controlling the operation of the entire component and measuring and displaying the load on the fabric specimens in real time. have.

Conventional peel strength measuring devices employing a tensile tester or the like measure the peel strength of a fabric specimen having two or more bonded fabrics or films firmly bonded to each other by an adhesive or the like, that is, the force required to separate these fabric layers from each other. Is used for measuring the peel strength. This peel strength measuring device is fixed to the end of one fabric and the other end of the fabric in the fabric specimens with a gripper, respectively, and then pull these fabrics in opposite directions by applying a tensile load using a driving device such as a motor. This tensile load is applied until these fabrics are separated from each other, and the tensile load applied to the fabrics is measured by a sensor attached to the tension meter. Peel strength is the maximum tensile load exerted on a fabric specimen before the fabric specimens are separated from each other, expressed in force per width of the specimen.

However, such a conventional peel strength measuring device can only measure the maximum tensile load applied to the fabric specimen, the change in the tensile load applied to the fabric specimen with time cannot be measured. In addition, when the state of each part of the fabric specimen is different or the mutual adhesion state of each part is different, the conventional peel strength measuring device has a disadvantage that it is not possible to measure the change in tensile load due to this partial difference. Moreover, the conventional peel strength measuring apparatus is large in size and is not only limited in space, but also expensive and difficult to use easily.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art in the peel strength measuring device for measuring the peel strength required to peel any first fabric layer from a fabric specimen to which two or more fabrics are bonded. It is to provide a peel strength measuring apparatus that can overcome the disadvantages of the conventional uniaxial tension meter such as Instron by electronically controlling the operation of the element and measuring and displaying the load on the fabric specimen in real time.

Another object of the present invention is to overcome the space constraints of the peel strength measuring device by reducing the volume of the peel strength measuring device.

Peel strength measuring device for measuring the peel strength required to peel any first fabric layer from two or more fabrics bonded fabric specimens according to the characteristics of the present invention for achieving the above object of the present invention A specimen mounting portion having a movable gripper firmly holding one end of the first fabric layer at one end and a fixed gripper firmly holding one end of the remaining fabric layers of the fabric specimen; A load applying unit for applying a tensile load to the movable gripper in parallel with the fabric specimen so that the movable gripper is away from the fixed gripper; A load measuring unit measuring a tensile load applied between the first fabric and the remaining fabric layers in real time; And a control unit for controlling the overall operation of the apparatus, a receiving unit receiving a measurement value from the load measuring unit, wherein the load applying unit is a motor, a belt for converting rotational force of the motor into a tensile load, and between the motor and the belt. And a roller for transmitting the rotational force of the motor to the belt, wherein each of the fixed gripper and the movable gripper includes an upper and lower member pivotable to each other, and at least one of a lower surface of the upper member and an upper surface of the lower member. Is nulled.

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Peel strength measuring device for measuring the peel strength required to peel any first fabric layer from a fabric specimen to which two or more fabrics adhered according to another aspect of the present invention for achieving the above object of the present invention is the fabric specimen A specimen mounting portion having a movable gripper firmly holding one end of the first fabric layer at one end of the first fabric layer and a fixed gripper firmly holding one end of the remaining fabric layers of the fabric specimen; A load applying unit for applying a tensile load to the movable gripper in parallel with the fabric specimen so that the movable gripper is away from the fixed gripper; A load measuring unit measuring a tensile load applied between the first fabric and the remaining fabric layers in real time; And a control unit for controlling the overall operation of the apparatus, a receiving unit receiving a measurement value from the load measuring unit, wherein the load applying unit is a motor, a belt for converting rotational force of the motor into a tensile load, and between the motor and the belt. And a roller for transmitting the rotational force of the motor to the belt, wherein the belt is separably fixed to the roller by one end of the fixing pin, and the one end is sewn to form a loop in the axial slit of the roller. And the securing pin is inserted into the loop to engage the groove inside the roller.

Peel strength measuring device for measuring the peel strength required to peel any first fabric layer from a fabric specimen to which two or more fabrics are bonded according to another feature of the present invention for achieving the above object of the present invention A specimen mounting portion having a movable gripper firmly holding one end of the first fabric layer at one end of the specimen and a fixed gripper firmly holding one end of the remaining fabric layer of the fabric specimen; A load applying unit for applying a tensile load to the movable gripper in parallel with the fabric specimen so that the movable gripper is away from the fixed gripper; A load measuring unit measuring a tensile load applied between the first fabric and the remaining fabric layers in real time; And a control unit for controlling the overall operation of the apparatus, a receiving unit receiving a measurement value from the load measuring unit, wherein the load applying unit is a motor, a belt for converting rotational force of the motor into a tensile load, and between the motor and the belt. And a roller for transmitting the rotational force of the motor to the belt, the belt having one end detachably fixed to the movable gripper by a fixing pin, the one end being sewn to form a loop, and the fixing pin being the It is inserted into the loop and engages the groove formed in the movable gripper.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to the embodiments.

1 is a perspective view showing an atmospheric state of the peel strength measuring apparatus of the fabric according to the present invention, Figure 2 is a side view of the peel strength measuring apparatus of the fabric shown in Figure 1, Figure 3 is a state in which the fabric is mounted 4 is a side cross-sectional view of a peel strength measuring apparatus of a fabric cut along a line AA, and FIG. 4 is a side view of the peel strength measuring apparatus of the fabric of FIG. 1 with the fabric peeled, and FIG. 5 is a peel strength measuring apparatus of the present invention. An enlarged partial cross-sectional exploded perspective view of the roller of FIG. 6 is an enlarged view of the lower member of the movable gripper of the peel strength measuring apparatus of the present invention, and FIG. 7 is a plan view of the lower member of the movable gripper of the peel strength measuring apparatus of the present invention. . For convenience of explanation, the following description will be made with reference to FIGS. 1 to 7.

As shown in the figure, the peel strength measuring apparatus 10 of the fabric according to the present invention has a housing 12 in the form of a box, in front of the housing 12 to a motor mounted inside the housing 12. The roller 20 rotated by this is provided. A worm gear (not shown) is provided between the motor and the roller 20 to reduce the rotational speed of the motor and transmit it to the roller 20. The belt 24 is coupled to the roller 20 which is rolled and moved to the right side of the drawing by the rotation of the roller 20. The belt 24 is also coupled to the movable gripper 26, with a fixed gripper 28 opposite the movable gripper 26 and a fixed gripper via a fabric specimen 50 on the left side of the fixed gripper 28. A load cell 30 for measuring the tensile load applied to the 28 is provided. These grippers 26 and 28 and the load cell 30 are supported at a predetermined height on the front surface of the housing 12 by the support plate 32. In the upper part of the housing 12, a display 40 for displaying the measured value measured by the load cell 30 is provided.

As shown in FIG. 5, one end of the belt 24 is tightly bound by means of sewing or the like after forming a loop, and inserted into the slit S1 of the roller 20 by the fixing pin 22. It is fixed to the roller 20. The fixing pin 22 is inserted through a hole formed at the end of the roller 20 and then passes through the root of the belt 24 located in the slit S1 to a groove (not shown) inside the adjacent end of the roller 20. To interlock. At this time, the end of the fixing pin 22 and the groove can be screwed tightly formed, for example.

The other end of the belt 24 is engaged with the lower member 26A of the movable gripper 26 on the left side of the belt 24 in the figure. The movable gripper 26 is configured to move along the belt 24 when the belt 24 is rolled to the right according to the motor drive. The other end of the belt 24 is inserted into the slit S2 of the lower member 26B shown in FIGS. 6 and 7 to form a loop around the belt connecting member 27, and then firmly bound by means such as sewing. have. The connecting member 27 is described as being integral with the lower member 26B but may have a detachable configuration similar to the fixing pin 22 of the roller 20. The gripper 26 further includes an upper member 26A that can be folded hinged to the lower member 26B. The lower surface of the upper member 26A and the upper surface of the lower member 26B are knurled as shown in detail in FIG. 6 so that the fabric from the movable gripper 26 when the upper member 26A is folded to the lower member 26B. Prevent slipping. The upper and lower members 26A and 26B in the folded state are secured by the bolts 34 to enhance the fastening force to the fabric.

The fixed gripper 28 on the left side of the movable gripper 26 has upper and lower members 28A and 28B having a configuration similar to the upper and lower members 26A and 26B of the movable gripper 26. The upper member 28A can be folded hinged to the lower member 28B, and the lower surface of the upper member 28A and the upper surface of the lower member 28B are knurled to prevent slippage of the fabric sandwiched therebetween. . The upper and lower members 28A, 28B in the folded state are fixed by bolts 34 to enhance the fastening force on the fabric.

When the roller 20 is rotated by the drive of the motor and thus the belt 24 pulls the fabric layer 50A sandwiched by the movable gripper 26 by the movable gripper 26, the fabric layer 50A is fixed. The tensile load exerted from the fabric layer 50B sandwiched by the gripper 28 and then applied to the entire fabric specimen 50 is measured by a load cell 30 connected to the fixed gripper 28. The load cell 30 is an electronic scale and is a device that detects a load applied to an object by using a strain gauge as a basic element and converts it into a mass and displays it numerically. If necessary, a piezoelectric cell may be used instead of the load cell 30. Since the load cell or the piezoelectric cell can measure the load applied in real time, when employed in the device of the present invention, the state of each part of the specimen and the fabric of each part of the specimen by grasping the change of the load applied when the specimen is peeled off I can grasp the condition. The construction and the principle of operation of these load cells or piezoelectric cells are well known in the art and their detailed description is omitted hereafter.

The load measured by the load cell 30 is displayed in real time on the display 40. Therefore, the worker can grasp in real time the load required to peel the fabric layer 50A from the fabric layer 50B. In addition, the display 40 is provided with a setting key for setting the load cell of the load cell 30 to an initial state, and is connected to a controller (not shown) inside the housing 12 to provide overall peel strength measuring apparatus 10. Keys for controlling the operation of are installed. Alternatively, a computer can be connected to the device 10 to control operations throughout the device 10.

8 is a block diagram showing the configuration of a peel strength measurement apparatus of a fabric according to the present invention.

Referring to FIG. 8, the control unit 100 controls the power supply unit 102 that supplies power to the components of the peel strength measuring device 10 to drive the motor 104 to fabric the fabric specimen 50 mounted on the device. In more detail, a load is applied to the second fabric layer 50B. The measuring unit 106 measures the load applied to the fabric specimen 50 and the second fabric layer 50B in real time, and transmits the measured value to the control unit 100. The control unit 100 stores the received measurement value in a storage unit (not shown) and transmits it to the display unit 108 so that the operator can check the measured load value through the display unit 108. In addition, when the operator sets the initial value, the control unit 100 instructs the measurement unit 106 to perform the initialization. Although not shown in FIG. 8, the receiver that receives the measurement value from the measurement unit 106 may be configured separately from the control unit 100.

When the controller 100 is installed in the housing 12 in the form of a controller, the operator may set an initial value through the keys installed in the display 40 described above. On the contrary, when the controller 100 is provided in the form of an external computer, the operator may perform an input operation through the keyboard and the monitor of the computer and check the measured value output. Of course, even when the controller is installed in the housing 12, it may be configured to connect an external computer to transmit the measurement to the computer.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

For example, although the peel strength measuring apparatus of the present invention has been described for measuring peel strength between fabric layers in a fabric specimen composed of several fabric layers, the peel strength of a resin layer such as a film or to measure the strength required to peel the wick from the fabric It can be configured to measure the.

The peel strength measuring apparatus according to the present invention can not only measure the maximum tensile load applied to the fabric specimen by attaching a digital gauge, but also can measure the change in the tensile load applied to the fabric specimen over time. Compared with the meter, the measured value can be measured accurately. In addition, even when the state of each part of the fabric specimen is different or the mutual adhesion state of each part is different, it is possible to measure the change in tensile load due to this partial difference. Moreover, the peel strength measuring apparatus of the present invention is small in volume, limited in space, and inexpensive, so that the measurement can be performed anywhere on the job site. In addition, the fabric specimen can be easily mounted, thereby increasing the convenience of operation. In addition, by connecting the device of the present invention to a computer, there is an advantage in that data input, measurement and measurement value output can be performed remotely.

1 is a perspective view showing the atmospheric state of the peel strength measuring apparatus of the fabric according to the present invention.

Figure 2 is a front view of the peel strength measuring apparatus of the fabric shown in Figure 1;

3 is a partial cross-sectional view of the peel strength measuring apparatus of the fabric cut along the line A-A of FIG. 1 with the fabric mounted;

Figure 4 is a side view of the fabric peel strength measuring apparatus of Figure 1 with the fabric peeled.

5 is an enlarged partial cross-sectional exploded perspective view of the roller of the peel strength measuring apparatus of the present invention.

6 is an enlarged view of the lower member of the movable gripper of the peel strength measuring apparatus of the present invention.

The top view of the lower member of the movable gripper of the peeling strength measuring apparatus of this invention.

Figure 7 is a block diagram showing the configuration of a peel strength measuring apparatus of a fabric according to the present invention.

<Explanation of symbols of main parts in drawings>

10: peel strength measuring device 12: housing

20: roller 22: fixing pin

24: Belt 26: Operation Gripper

28: fixed gripper 30: load cell

40: display

Claims (4)

A peel strength measuring apparatus 10 for measuring peel strength required to peel any first fabric layer 50A from a fabric specimen 50 to which two or more fabrics are bonded, A movable gripper 26 for firmly holding one end of the first fabric layer 50A at one end of the fabric specimen 50 and a fixed gripper 28 for firmly holding one end of the remaining fabric layer 50B of the fabric specimen. Specimen mounting portion having; A load applying unit for applying a tensile load to the movable gripper (26) in parallel with the fabric specimen (50) such that the movable gripper (26) moves away from the fixed gripper (28); A load measuring unit (30) for measuring in real time a tensile load applied between the first fabric layer (50A) and the remaining fabric layer (50B); Control unit 100 for controlling the overall operation of the device 10 and receiving the measurement value from the load measuring unit 30 Equipped with The load applying unit includes a motor 104, a belt 24 for converting the rotational force of the motor 104 into a tensile load, and a roller for transmitting the rotational force of the motor between the motor and the belt 24 to the belt ( 20), Each of the movable grippers 26 and the fixed grippers 28 includes upper and lower members 26A, 28A; 26B, 28B pivotable to each other, and the lower and lower members of the upper members 26A, 28A. At least one of the upper surfaces of 26B and 28B is knurled, The peeling strength measuring apparatus 10 characterized by the above-mentioned. delete A peel strength measuring apparatus 10 for measuring peel strength required to peel any first fabric layer 50A from a fabric specimen 50 to which two or more fabrics are bonded, A movable gripper 26 for firmly holding one end of the first fabric layer 50A at one end of the fabric specimen 50 and a fixed gripper 28 for firmly holding one end of the remaining fabric layer 50B of the fabric specimen. Specimen mounting portion having; A load applying unit for applying a tensile load to the movable gripper (26) in parallel with the fabric specimen (50) such that the movable gripper (26) moves away from the fixed gripper (28); A load measuring unit (30) for measuring in real time a tensile load applied between the first fabric layer (50A) and the remaining fabric layer (50B); Control unit 100 for controlling the overall operation of the device 10 and receiving the measurement value from the load measuring unit 30 Equipped with The load applying unit includes a motor 104, a belt 24 for converting the rotational force of the motor 104 into a tensile load, and a roller for transmitting the rotational force of the motor between the motor and the belt 24 to the belt ( 20), One end of the belt 24 is separably fixed to the roller 20 by the fixing pin 22, and the one end is sewn to form a loop and inserted into the axial slit S1 of the roller 20. And the fixing pin (22) is inserted into the loop to engage the groove inside the roller (20). A peel strength measuring apparatus 10 for measuring peel strength required to peel any first fabric layer 50A from a fabric specimen 50 to which two or more fabrics are bonded, A movable gripper 26 for firmly holding one end of the first fabric layer 50A at one end of the fabric specimen 50 and a fixed gripper 28 for firmly holding one end of the remaining fabric layer 50B of the fabric specimen. Specimen mounting portion having; A load applying unit for applying a tensile load to the movable gripper (26) in parallel with the fabric specimen (50) such that the movable gripper (26) moves away from the fixed gripper (28); A load measuring unit (30) for measuring in real time a tensile load applied between the first fabric layer (50A) and the remaining fabric layer (50B); Control unit 100 for controlling the overall operation of the device 10 and receiving the measurement value from the load measuring unit 30 Equipped with The load applying unit includes a motor 104, a belt 24 for converting the rotational force of the motor 104 into a tensile load, and a roller for transmitting the rotational force of the motor between the motor and the belt 24 to the belt ( 20), The belt 24 has one end detachably fixed to the movable gripper 26 by a fixing pin, the one end is sewn to form a loop, and the fixing pin is inserted into the loop and is formed in the movable gripper. Peel strength measuring device 10, characterized in that the meshing with.