A testing device for foam deformation and resistance

Abstract

The present invention relates to a foam testing device, in particular to a foam deformation and resistance testing device, comprising a force sensor, a resistance tester, a linear module, a touch control screen, a detection box, and a stretching device or a compression device; the touch control screen, the linear module and the resistance tester are all installed on the detection box, the force sensor, the resistance tester and the linear module are all connected to the touch control screen, the force sensor is installed on the slide of the linear module, the stretching device or the compression device is respectively connected to the force sensor and the detection box, and the detection wire of the resistance tester is respectively connected to the stretching device or the compression device. The testing device accurately detects the deformation of the foam through the force sensor and the servo motor, and accurately detects the resistance of the foam when it is deformed through the resistance meter, and has a simple structure, is easy to use, and has an accurate and reliable detection structure.

Description

Technical Field

[0001] The invention relates to a foam testing device, in particular to a foam deformation and resistance testing device. Background Art

[0002] Foam can be easily compressed or stretched. When the foam is stretched or compressed, its resistance will change. The current foam resistance detection equipment can only detect the resistance of the foam in a free state. When the foam is deformed, it can neither accurately detect the deformation of the foam nor the resistance. Therefore, how to detect the resistance and deformation of the foam is an urgent problem to be solved. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a foam deformation and resistance testing device which can detect the resistance and deformation of the foam in real time when the foam is compressed or stretched. The specific technical solution is as follows:

[0004] A testing device for foam deformation and resistance, comprising a force sensor, a resistance tester, a linear module and a touch control screen, and also comprising a detection box and a stretching device or a compression device; the touch control screen, the linear module and the resistance tester are all installed on the detection box, the force sensor, the resistance tester and the linear module are all connected to the touch control screen, the force sensor is installed on a slide of the linear module, the stretching device or the compression device is respectively connected to the force sensor and the detection box, and the detection wire of the resistance tester is respectively connected to the stretching device or the compression device.

[0005] Preferably, the stretching device includes an upper clamping device, a lower clamping device and a conductive device; the upper clamping device includes an upper chuck, an upper handle and an upper clamping plate, the upper chuck is connected to the force sensor, an upper clamping groove is provided on the upper chuck, the upper handle is mounted on the upper chuck by a thread and is rotatably connected to the upper clamping plate, the upper clamping plate is movably inserted in the upper clamping groove, and is used to press the foam in the upper clamping groove; the lower clamping device includes a lower chuck, a lower handle and a lower insulating clamping plate, the lower chuck is mounted on the detection box, a lower clamping groove is provided on the lower chuck, the lower handle is mounted on the lower chuck by a thread and is rotatably connected to the lower insulating clamping plate, the lower insulating clamping plate is movably inserted in the lower clamping groove, and is used to press the foam in the lower clamping groove; the conductive device includes a conductive column or a probe, two of the conductive column and probe are provided, and both are fixed on the lower insulating clamping plate, and the conductive column or probe is connected to the detection wire of the resistance tester.

[0006] Furthermore, the lower clamping device also includes a lower guide column, two of which are symmetrically provided and fixed on one side of the lower clamping groove, and the lower guide column is also slidably inserted on the lower insulating clamping plate.

[0007] Preferably, the compression device includes an upper insulating pressure plate, a lower insulating pressure plate, an upper conductive plate and a lower conductive plate, the upper insulating pressure plate is installed on the force sensor, the upper conductive plate is fixed on the upper insulating pressure plate, the lower insulating pressure plate is fixed on the detection box, the lower conductive plate is fixed on the lower insulating pressure plate, and the upper conductive plate and the lower conductive plate are respectively connected to the detection wire of the resistance tester.

[0008] Furthermore, upper joints are provided on both sides of the upper conductive plate, and lower joints are provided on both sides of the lower conductive plate. The upper joints and the lower joints are respectively connected to the detection wires of the resistance tester.

[0009] Wherein, the upper joint and the lower joint are both provided with detection holes.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The present invention provides a foam deformation and resistance testing device which accurately detects the foam deformation through a force sensor and a servo motor, and accurately detects the resistance of the foam during deformation through a resistance meter. The device has a simple structure, is easy to use, and has an accurate and reliable detection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a testing device for foam deformation and resistance equipped with a stretching device;

[0013] Figure 2 It is a structural diagram of the linear module;

[0014] Figure 3 It is a cross-sectional view of the linear module;

[0015] Figure 4 is a schematic diagram of the structure of the stretching device;

[0016] Figure 5 is a side view of the stretching device;

[0017] Figure 6 The present invention is a structural schematic diagram of a testing device for foam deformation and resistance equipped with a compression device;

[0018] Figure 7 is a schematic diagram of the structure of the compression device;

[0019] Figure 8 is a side view of the compression device. DETAILED DESCRIPTION

[0020] The present invention will be further described with reference to the accompanying drawings.

[0021] Embodiment 1

[0022] like Figures 1 to 5 As shown, a testing device for foam deformation and resistance includes a force sensor 4, a resistance tester 3, a linear module 7, a touch control screen 3, a detection box 1 and a stretching device 5; the touch control screen 3, the linear module 7 and the resistance tester 3 are all installed on the detection box 1, the force sensor 4, the resistance tester 3 and the linear module 7 are all connected to the touch control screen 3, the force sensor 4 is installed on the slide 71 of the linear module 7, the stretching device 5 or the compression device 6 are respectively connected to the force sensor 4 and the detection box 1, and the detection wire 31 of the resistance tester 3 is respectively connected to the stretching device 5.

[0023] Specifically, the linear module 7 includes a base plate 76, a module frame 72, a slide 71, a round guide rod 73, a screw pair, a motor, a driving pulley, a driven pulley and a synchronous belt. The module frame 72 is fixed on the base plate 76, the base plate 76 is fixed on the detection box 1, the round guide rod 73 is symmetrically installed on both sides of the ball screw 74, and both ends of the ball screw 74 are installed on the module frame 72 through a bearing seat. The slide 71 is slidably installed on the round guide rod 73 and connected to the screw nut 75. The driven pulley is fixed to one end of the ball screw 74 and connected to the driving pulley through a synchronous belt. The driving pulley is fixed to the motor, the motor is fixed to the base plate 76, and the motor is connected to the touch control screen 3. The motor is a servo motor, which can accurately control the lifting distance or pressure of the slide 71. A connecting seat 11 is installed at one end of the base plate 76.

[0024] The stretching device 5 includes an upper clamping device, a lower clamping device and a conductive device; the upper clamping device includes an upper chuck 51, an upper handle 53 and an upper clamping plate 52, the upper chuck 51 is connected to the force sensor 4 through a screw, an upper clamping groove 511 is provided on the upper chuck 51, the upper handle 53 is installed on the upper chuck 51 through a thread, and is rotatably connected to the upper clamping plate 52, and the upper clamping plate 52 is movably inserted in the upper clamping groove 511 to press the foam 9 in the upper clamping groove 511; the lower clamping device includes a lower chuck 54, a lower handle 56, a lower insulating clamping plate 55 and a lower guide column 57, the lower insulating plate is made of a plastic plate or a bakelite plate, the lower chuck 54 is installed on the connecting seat 11, and the lower chuck 54 is provided with There is a lower clamping groove 541, and the lower handle 56 is installed on the lower clamping head 54 through a thread, and is rotatably connected to the lower insulating clamping plate 55. The lower insulating clamping plate 55 is movably inserted in the lower clamping groove 541. Two lower guide columns 57 are symmetrically provided and fixed on one side of the lower clamping groove 541. The lower guide column 57 is also slidably inserted on the lower insulating clamping plate 55. The lower guide column 57 prevents the lower insulating clamping plate 55 from rotating. The lower insulating clamping plate 55 is used to press the foam 9 in the lower clamping groove 541; the conductive device includes a conductive column 58 or a probe, and the conductive column 58 and the probe are both provided with two, and are insulated and fixed on the lower insulating clamping plate 55. The conductive column 58 or the probe is connected to the detection wire 31 of the resistance tester 3.

[0025] During the test, the two ends of the foam 9 are respectively pressed into the upper clamping groove 511 and the lower clamping groove 541, and then the stretching distance or tension of the linear module 7 is set through the touch control screen 3, and the positive and negative detection wires 31 of the resistance tester 3 are respectively connected to the two conductive columns 58 or probes through clips, and then the test is started. The touch control screen 3 records the stretching deformation and tension of the foam 9, and the resistance tester 3 records the resistance of the foam 9 in real time, and sends the test results to the touch control screen 3, so as to obtain the stretching deformation and resistance value curve required for the test, and display them on the touch control screen 3.

[0026] Embodiment 2

[0027] like Figures 6 to 8 As shown, the difference between this embodiment and the first embodiment lies in the compression device 6. The stretching device 5 of the first embodiment is used for testing the stretching of the foam 9, while the compression device 6 of this embodiment is used for squeezing the foam 9. Specifically, the compression device 6 includes an upper insulating plate 61, a lower insulating plate 64, an upper conductive plate 63 and a lower conductive plate 65. A threaded rod 62 is mounted on the top of the upper insulating plate 61. The threaded rod 62 is connected to the upper insulating plate 61 through a flange, and the threaded rod 62 is connected to the force sensor 4. The upper conductive plate 63 is fixed on the upper insulating plate 61, the lower insulating plate 64 is fixed on the connecting seat 11, and the lower conductive plate 65 is fixed on the lower insulating plate 64. The upper conductive plate 63 and the lower conductive plate 65 are respectively connected to the detection wire 31 of the resistance tester 3.

[0028] The upper insulating pressing plate 61 and the lower insulating pressing plate 64 can be made of bakelite or engineering plastics. The upper conductive plate 63 and the lower conductive plate 65 are made of copper plates.

[0029] In some embodiments, upper joints 631 are provided on both sides of the upper conductive plate 63, and lower joints 651 are provided on both sides of the lower conductive plate 65. The upper joints 631 and the lower joints 651 are respectively connected to the detection wires 31 of the resistance tester 3. The upper joints 631 and the lower joints 651 may also be provided with detection holes.

[0030] During the test, the foam 9 is placed on the lower conductive plate 65, and then the positive and negative detection wires 31 of the resistance tester 3 are connected to the upper joint 631 and the lower joint 651 respectively through clips. The detection wire 31 can also be directly connected to the detection holes of the upper joint 631 and the lower joint 651. Then, the extrusion distance or extrusion pressure of the linear module 7 is set through the touch control screen 3, and the test is started. The touch control screen 3 records the extrusion deformation and extrusion pressure of the foam 9. The resistance tester 3 records the resistance of the foam 9 in real time and sends the test results to the touch control screen 3, so as to obtain the extrusion deformation and resistance value curve required for the test, and display them on the touch control screen 3.

[0031] A foam deformation and resistance testing device has a simple structure and is convenient for testing. The deformation of the foam is accurately detected by a force sensor and a servo motor, and the resistance of the foam during deformation is accurately detected by a resistor meter. The detection structure is accurate and reliable.

[0032] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A device for testing foam deformation and resistance, comprising a force sensor (4), a resistance tester (3), a linear module (7) and a touch control screen (3), characterized in that: It also includes a detection box (1) and a stretching device (5) or a compression device (6); the touch control screen (3), the linear module (7) and the resistance tester (3) are all installed on the detection box (1); the force sensor (4), the resistance tester (3) and the linear module (7) are all connected to the touch control screen (3); the force sensor (4) is installed on the slide (71) of the linear module (7); the stretching device (5) or the compression device (6) are respectively connected to the force sensor (4) and the detection box (1); and the detection wire (31) of the resistance tester (3) is respectively connected to the stretching device (5) or the compression device (6); The stretching device (5) comprises an upper clamping device, a lower clamping device and a conductive device; The upper clamping device comprises an upper clamp (51), an upper handle (53) and an upper clamping plate (52); the upper clamp (51) is connected to the force sensor (4); an upper clamping groove (511) is provided on the upper clamp (51); the upper handle (53) is mounted on the upper clamp (51) by means of a thread and is rotatably connected to the upper clamping plate (52); the upper clamping plate (52) is movably inserted into the upper clamping groove (511) and is used to press the foam (9) into the upper clamping groove (511); The lower clamping device comprises a lower clamp (54), a lower handle (56) and a lower insulating clamping plate (55); the lower clamp (54) is mounted on the detection box (1); a lower clamping groove (541) is provided on the lower clamp (54); the lower handle (56) is mounted on the lower clamp (54) by means of a thread and is rotatably connected to the lower insulating clamping plate (55); the lower insulating clamping plate (55) is movably inserted into the lower clamping groove (541) and is used to press the foam (9) into the lower clamping groove (541); The conductive device comprises a conductive column (58) or a probe, two conductive columns (58) and two probes are provided and both are fixed on the lower insulating clamping plate (55), and the conductive columns (58) or probes are connected to the detection wire (31) of the resistance tester (3); The compression device (6) comprises an upper insulating plate (61), a lower insulating plate (64), an upper conductive plate (63) and a lower conductive plate (65); the upper insulating plate (61) is mounted on the force sensor (4); the upper conductive plate (63) is fixed on the upper insulating plate (61); the lower insulating plate (64) is fixed on the detection box (1); the lower conductive plate (65) is fixed on the lower insulating plate (64); and the upper conductive plate (63) and the lower conductive plate (65) are respectively connected to the detection wire (31) of the resistance tester (3).

2. A foam deformation and resistance testing device according to claim 1, characterized in that: The lower clamping device further comprises a lower guide column (57), two of which are symmetrically provided and fixed on one side of the lower clamping groove (541), and the lower guide column (57) is also slidably inserted on the lower insulating clamping plate (55).

3. A foam deformation and resistance testing device according to claim 1, characterized in that: Upper joints (631) are provided on both sides of the upper conductive plate (63), and lower joints (651) are provided on both sides of the lower conductive plate (65); the upper joints (631) and the lower joints (651) are respectively connected to detection wires (31) of the resistance tester (3).

4. A foam deformation and resistance testing device according to claim 3, characterized in that: The upper joint (631) and the lower joint (651) are both provided with detection holes.

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