Fabric tearing testing device

Abstract

The utility model relates to the technical field of tear resistance testing, in particular to a fabric tear testing device which comprises a testing table, a center disc is arranged in the middle of the testing table, a plurality of propelling assemblies are installed on the testing table with the center disc as the center, and the propelling assemblies are provided with moving seats. The propelling assembly is used for pushing the moving seat to move close to or away from the central disc; a vertical clamp and a limiting box are installed on the movable base, a limiting groove is formed in the surface of the limiting box, and the shape of a pressing head of the vertical clamp is matched with that of the limiting groove. Compared with a traditional method, according to the technical scheme, the multiple pushing assemblies are arranged and can push the movable base to move, the vertical clamp on the movable base is matched with the limiting box to clamp the cloth, the multiple pushing assemblies push the movable base to move in the different directions, the cloth is tightly supported in the multiple different directions, and therefore the cloth can be tightly supported. The tension layout of the fabric is more similar to the tension layout of the fabric in actual use, and the obtained result can more truly reflect the tear resistance of the fabric.

Description

Technical Field

[0001] The utility model relates to the technical field of tear resistance testing, in particular to a fabric tear testing device. Background Art

[0002] After the fabric is prepared, its tear resistance needs to be tested according to its purpose of use. Generally speaking, when the density of the fabric is small, it can be tested by hand tearing, but when the density of the fabric is large or the material is special, the hand tearing method is difficult to meet the test requirements.

[0003] The patent document with the patent publication number: CN113916659A discloses a tear-resistant fabric strength testing device, including a base, a first mounting plate, and a U-shaped top plate arranged on the first mounting plate, the first mounting plate is connected to a moving component; the lower end of the moving component is symmetrically provided with two connecting rods, and the bottoms of the two connecting rods are provided with clamping components; the moving component is used to drive the connecting rod to move. Through the reduction motor, the moving block can be driven to move, so that the connecting rod drives the clamping component to move, and then the tear-resistant fabric is stretched, which can realize the semi-automation of the tearing test of textile fabrics, improve the accuracy of the experiment, reduce the work intensity of manual stretching of textile fabrics, and improve work efficiency.

[0004] Similar to the above scheme, the current fabric tearing test device generally sets opposite forces at both ends of the fabric, tightens the fabric to the maximum limit until the fabric is torn, and then tests the tear resistance of the fabric. Although this method is simple to operate and the results are intuitive, in actual use, the fabric may be subjected to forces in multiple directions. Therefore, this tensile test cannot fully simulate this situation and has defects. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a fabric tearing test device, which solves the problem that the current fabric tearing resistance test process is not perfect and the test results cannot truly reflect the degree of fabric tearing resistance.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The fabric tearing test device comprises a test bench, wherein a central disk is arranged in the middle of the test bench, and a plurality of propulsion assemblies are installed on the test bench with the central disk as the center, wherein the propulsion assemblies are installed with a moving seat, and the propulsion assemblies are used to push the moving seat to move toward or away from the central disk;

[0008] The movable seat is provided with a vertical clamp and a limit box, a limit groove is provided on the surface of the limit box, and the shape of the pressure head of the vertical clamp matches the limit groove.

[0009] Furthermore, there are four propulsion assemblies in total, and the four propulsion assemblies are arranged at 90° intervals with the central disk as the center.

[0010] Furthermore, a mounting groove is provided on the surface of the test bench corresponding to the propulsion assembly, and the propulsion assembly includes a screw rod and a propulsion motor. The screw rod is rotatably arranged inside the mounting groove, the output end of the propulsion motor is connected to the end of the screw rod, the movable seat is slidably arranged in the mounting groove, and the movable seat is threadedly connected to the screw rod.

[0011] Furthermore, a first limiting strip is arranged on the surface of the pressing head, a second limiting strip is arranged on the inner wall of the limiting groove, and after the pressing head is completely inserted into the limiting groove, the first limiting strip and the second limiting strip are offset from each other.

[0012] Furthermore, the pressure head and the limiting groove are both fan-shaped structures.

[0013] Furthermore, the first limiting strip and the second limiting strip are both made of rubber.

[0014] Furthermore, a cylinder is arranged above the center disk, the output end of the cylinder faces downward and is connected to a rotating motor, the output end of the rotating motor is connected to a reinforcing frame and a mounting disk in sequence, and a contact piece is installed on the bottom surface of the mounting disk.

[0015] Furthermore, the installation disk is circular, and there are three contact members in total, which are arranged at intervals of 120° with the center of the installation disk as the center.

[0016] Furthermore, the contact piece is in a cylindrical structure, and the bottom surface of the contact piece is an arc surface.

[0017] Furthermore, the surface of the contact piece is sprayed with anti-slip material.

[0018] Beneficial effects of the utility model:

[0019] Compared with the traditional method, the technical solution is provided with multiple propulsion components, which can push the moving seat to move, and the vertical clamp and the limit box on the moving seat cooperate to clamp the fabric. The moving seat is pushed to move in different directions by multiple propulsion components, so as to achieve the goal of tightening the fabric from multiple different directions, which is more similar to the tension layout that the fabric is borne in actual use, and the obtained results can more truly reflect the degree of tear resistance of the fabric. Not only that, a rotating motor can be set above the fabric to apply rotational force to the fabric through the rotating motor, so as to quickly produce a tearing effect. The test standard is more stringent, and it is suitable for testing fabrics with special needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional view of the first embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of the first embodiment of the present invention;

[0023] Figure 3 It is a three-dimensional view of the moving seat, vertical fixture and limit box in this scheme;

[0024] Figure 4 It is a three-dimensional view of the limit box in this scheme;

[0025] Figure 5 is a three-dimensional view of the vertical clamp in this scheme;

[0026] Figure 6 This is the front view of the second embodiment of the present invention;

[0027] Figure 7 It is a three-dimensional view of the cylinder, rotating motor, reinforcement frame, mounting plate and contact member in this scheme.

[0028] In the figure: 1. test bench; 11. mounting slot; 12. center plate; 2. propulsion assembly; 21. screw rod; 22. propulsion motor; 3. moving seat; 4. vertical clamp; 41. pressure head; 42. limit strip 1; 5. limit box; 51. limit slot; 52. limit strip 2; 6. cylinder; 61. rotating motor; 62. reinforcement frame; 63. mounting plate; 64. contact piece. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the fabric tearing test device comprises a test bench 1, a center plate 12 is arranged in the middle of the test bench 1, a plurality of propulsion components 2 are installed on the test bench 1 with the center plate 12 as the center, the propulsion components 2 are installed with a moving seat 3, and the propulsion components 2 are used to push the moving seat 3 to move toward or away from the center plate 12; a vertical clamp 4 and a limit box 5 are installed on the moving seat 3, a limit groove 51 is provided on the surface of the limit box 5, and the shape of the pressure head 41 of the vertical clamp 4 matches the limit groove 51;

[0032] When conducting a test, the cloth can be placed on the test bench 1 first, and then one side of the cloth can be placed on the limit box 5. The vertical clamp 4 can be manipulated to insert the pressure head 41 into the limit groove 51. At this time, the cloth position is limited. Subsequently, the multiple moving seats 3 can be controlled to move away from the center disk 12 through the propulsion assembly 2 respectively, and the multiple moving seats 3 move away from the center disk 12 in different directions to achieve a tearing test on the cloth.

[0033] like Figure 1 As shown, there are four propulsion assemblies 2, and the four propulsion assemblies 2 are arranged at 90° intervals with the center disk 12 as the center, so that during the test, tension can be applied to the fabric from four directions at the same time, and the test process is closer to reality.

[0034] like Figure 1 , Figure 2 As shown, a mounting groove 11 is provided on the surface of the test bench 1 corresponding to the propulsion assembly 2, and the propulsion assembly 2 includes a screw rod 21 and a propulsion motor 22. The screw rod 21 is rotatably arranged inside the mounting groove 11, and the output end of the propulsion motor 22 is connected to the end of the screw rod 21. The moving seat 3 is slidably arranged in the mounting groove 11, and the moving seat 3 is threadedly connected to the screw rod 21. After the propulsion motor 22 is started, the screw rod 21 rotates, and at the same time, the moving seat 3 moves in the mounting groove 11 along the axial direction of the screw rod 21. Before the test, the moving seat 3 can be moved to one end of the mounting groove 11 close to the center disk 12. After the vertical clamp 4 clamps the cloth, the moving seat 3 can be controlled to move toward the end away from the center disk 12 to achieve a tearing test on the cloth.

[0035] like Figure 3 , Figure 4 , Figure 5 As shown, a limit strip 1 42 is provided on the surface of the pressing head 41, and a limit strip 2 52 is provided on the inner wall of the limit groove 51, and after the pressing head 41 is fully inserted into the limit groove 51, the limit strip 1 42 and the limit strip 2 52 are misaligned with each other. In this embodiment, a plurality of limit strips 1 42 and a plurality of limit strips 2 52 are provided, and the plurality of limit strips 1 42 and the limit strip 2 52 are respectively arranged at equal intervals on the surface of the pressing head 41 and the inner wall of the limit groove 51. When the cloth is placed on the limit box 5, the pressing head 41 is pressed down, and the pressing head 41 carries a part of the cloth and is embedded in the limit groove 51, so that the cloth is limited and fixed to avoid sliding of the cloth when the cloth is subjected to a tearing test.

[0036] In this embodiment, the pressure head 41 and the limiting groove 51 are both fan-shaped structures, which can provide a larger contact area when limiting the cloth, so that the cloth is more stable and not easy to slide.

[0037] In this embodiment, the limiting strip 1 42 and the limiting strip 2 52 are both made of rubber material. When the pressure head 41 is inserted into the limiting groove 51, the limiting strip 1 42 and the limiting strip 2 52 made of rubber material have elasticity. After being locked with each other, the cloth pressed into the limiting groove 51 is difficult to separate and the cloth is not easy to slide.

[0038] Embodiment 2:

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the fabric tearing test device includes a test bench 1, a central disk 12 is provided in the middle of the test bench 1, a plurality of propulsion assemblies 2 are installed on the test bench 1 with the central disk 12 as the center, and the propulsion assemblies 2 are installed with a moving seat 3, and the propulsion assemblies 2 are used to push the moving seat 3 to move toward or away from the central disk 12. Compared with the first embodiment:

[0040] like Figure 6 , Figure 7 As shown, a cylinder 6 is arranged above the center disk 12, and the output end of the cylinder 6 faces downward and is connected to a rotating motor 61. The output end of the rotating motor 61 is connected to a reinforcing frame 62 and a mounting disk 63 in sequence, and a contact piece 64 is installed on the bottom surface of the mounting disk 63; the mounting disk 63 is circular, and there are three contact pieces 64 in total, and the three contact pieces 64 are arranged at 120° intervals with the center of the mounting disk 63 as the center.

[0041] After the vertical clamps 4 in four directions have tightened the cloth, the cylinder 6 can be started, and the output end of the cylinder 6 is pressed down until the contact piece 64 is pressed against the surface of the center disk 12, and the cloth between the two is also clamped. At this time, the rotating motor 61 can be started, and the rotating motor 61 outputs torque, which is applied to the cloth through the reinforcement frame 62, the mounting disk 63 and the contact piece 64. The advantage of this method is that it can quickly produce a tearing effect and can test the degree to which the cloth can withstand multi-directional tearing forces.

[0042] In this embodiment, the contact member 64 is a cylindrical structure, the bottom surface of the contact member 64 is an arc surface, and the surface of the contact member 64 is sprayed with anti-slip material; such a design makes the torque transmission efficiency of the contact member 64 higher after clamping the cloth.

[0043] Embodiment three:

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the fabric tearing test device includes a test bench 1, a central disk 12 is provided in the middle of the test bench 1, a plurality of propulsion assemblies 2 are installed on the test bench 1 with the central disk 12 as the center, and the propulsion assemblies 2 are installed with a moving seat 3, and the propulsion assemblies 2 are used to push the moving seat 3 to move toward or away from the central disk 12. Compared with the second embodiment:

[0045] The output ends of the propulsion motor 22 and the rotation motor 61 are both provided with torque sensors. By observing the value of the torque sensor, the tension on the fabric at that time can be deduced, which is convenient for statistical data and production of iterative fabric products.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. Fabric tearing test device, including a test bench, characterized in that: A central disk is provided in the middle of the test bench, and a plurality of propulsion assemblies are installed on the test bench with the central disk as the center. The propulsion assemblies are installed with moving seats, and the propulsion assemblies are used to push the moving seats to move toward or away from the central disk; The movable seat is provided with a vertical clamp and a limit box, a limit groove is provided on the surface of the limit box, and the shape of the pressure head of the vertical clamp matches the limit groove.

2. The fabric tearing test device according to claim 1, characterized in that: There are four propulsion assemblies in total, and the four propulsion assemblies are arranged at 90° intervals with the central disk as the center.

3. The fabric tearing test device according to claim 1, characterized in that: An installation groove is provided on the surface of the test bench corresponding to the propulsion assembly. The propulsion assembly includes a screw and a propulsion motor. The screw is rotatably arranged inside the installation groove. The output end of the propulsion motor is connected to the end of the screw. The movable seat is slidably arranged in the installation groove, and the movable seat is threadedly connected to the screw.

4. The fabric tearing test device according to claim 1, characterized in that: A first limiting strip is arranged on the surface of the pressing head, a second limiting strip is arranged on the inner wall of the limiting groove, and after the pressing head is completely inserted into the limiting groove, the first limiting strip and the second limiting strip are mutually offset.

5. The fabric tearing test device according to claim 4, characterized in that: The pressure head and the limiting groove are both fan-shaped structures.

6. The fabric tearing test device according to claim 4, characterized in that: The first limiting strip and the second limiting strip are both made of rubber.

7. The fabric tearing test device according to claim 1, characterized in that: A cylinder is arranged above the center disk, the output end of the cylinder faces downward and is connected to a rotating motor, the output end of the rotating motor is sequentially connected to a reinforcing frame and a mounting disk, and a contact piece is installed on the bottom surface of the mounting disk.

8. The fabric tearing test device according to claim 7, characterized in that: The mounting plate is circular, and there are three contact members in total. The three contact members are arranged at intervals of 120° with the center of the mounting plate as the center.

9. The fabric tearing test device according to claim 8, characterized in that: The contact piece is in a cylindrical structure, and the bottom surface of the contact piece is an arc surface.

10. The fabric tearing test device according to claim 9, characterized in that: The surface of the contact piece is sprayed with anti-slip material.

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