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CN-122016542-A - Woven cloth friction testing machine

CN122016542ACN 122016542 ACN122016542 ACN 122016542ACN-122016542-A

Abstract

The invention relates to the technical field of textile detection equipment, in particular to a fabric friction testing machine which comprises a testing machine body and a butterfly plate arranged on the testing machine body, wherein a rotating shaft is arranged on the butterfly plate, one end of the rotating shaft is provided with a mounting seat, the fabric friction testing machine also comprises a plurality of groups of friction columns which are arranged in the butterfly plate in a sliding manner, a plurality of groups of friction columns are uniformly arranged around the rotating shaft, one end of each group of friction columns penetrates through the butterfly plate and contacts with the rotating shaft and is used for applying variable friction resistance to the rotating shaft.

Inventors

  • LIU HONGBING
  • LIU YUSHANG
  • PAN LULU

Assignees

  • 宝鸡市大地纺织有限公司

Dates

Publication Date
20260512
Application Date
20260401

Claims (8)

  1. 1. The utility model provides a cloth friction testing machine, includes testing machine main part (1) and sets up butterfly plate (11) above that, install axis of rotation (12) on butterfly plate (11), axis of rotation (12) one end is provided with mount pad (13), its characterized in that still includes: The friction columns (2) are arranged in the butterfly plate (11) in a sliding manner, a plurality of friction columns (2) are uniformly arranged around the rotating shaft (12), and one end of each friction column passes through the butterfly plate (11) and contacts with the rotating shaft (12) to apply variable friction resistance to the rotating shaft (12); The rotating ring (3) is rotatably arranged in the butterfly plate (11) and is connected with the friction column (2); The transmission piece (4) is arranged in the butterfly plate (11), the friction column (2) is connected with the rotating ring (3) through the transmission piece (4), the transmission piece (4) is utilized to enable the friction column (2) to gradually improve extrusion force to the rotating shaft (12) in the rotating process of the rotating ring (3), and after the extrusion force is improved to a certain value, the friction column (2) is driven to rotate so as to drive the rotating shaft (12) to actively rotate with the mounting seat (13).
  2. 2. The weaving friction testing machine according to claim 1, wherein the transmission member (4) comprises a hollow column I (41) fixedly connected to the butterfly plate (11), one end of the rotating shaft (12) penetrates through the hollow column I (41) in a sliding manner, a hollow shaft I (42) is fixedly connected to the rotating ring (3), the hollow column I (41) penetrates through the hollow shaft I (42) and is in rotary connection with the hollow shaft I, an annular plate (43) is arranged in the butterfly plate (11), and the friction column (2) is in sliding connection with the annular plate (43); A rectangular groove (44) is formed in the friction column (2), a sliding block (45) is connected in the rectangular groove (44) in a sliding manner, a cylinder (46) is fixedly connected to one end of the sliding block (45), a guide groove (47) is formed in the friction column (2), one end of the cylinder (46) slides through the guide groove (47), a hole (48) is formed in one end of the sliding block (45), a spring (49) is fixedly connected in the hole (48), one end of the spring (49) is fixed to the inner wall of the rectangular groove (44), and when the cylinder (46) is pushed, the spring (49) is extruded to provide extrusion force for the friction column (2) to extrude the rotating shaft (12); And an arc groove (51) is formed in the rotating ring (3), one end of the cylinder (46) penetrates through the arc groove (51) and is in sliding connection with the inner wall of the cylinder, and when the rotating ring (3) is rotated, the cylinder (46) is jacked by the arc groove (51) to move.
  3. 3. The woven fabric friction testing machine according to claim 2, wherein the butterfly plate (11) is fixedly connected with the annular mounting plate (52), the annular mounting plate (52) is fixedly connected with the hollow post II (53), one end of the rotating shaft (12) also slides through the hollow post II (53), the hollow post II (53) is fixedly connected with the flexible friction ring (54), the friction ring (55) is arranged at the bottom end of the annular plate (43), and the friction ring (55) is tightly contacted with the flexible friction ring (54) to provide friction resistance for rotation of the annular plate (43).
  4. 4. The woven fabric friction testing machine according to claim 3, wherein the first outer gear ring (56) is fixedly connected to the rotating ring (3), the second outer gear ring (57) meshed with the first outer gear rings (56) is rotatably connected to the butterfly plate (11), the driving motor (58) is fixedly connected to the butterfly plate (11), the fluted disc (59) meshed with the second outer gear rings (57) is fixedly connected to an output shaft of the driving motor (58), and the driving motor (58) is started to drive the rotating rings (3) to rotate.
  5. 5. The woven cloth friction testing machine according to claim 4, wherein the annular plate (43) is provided with a sliding groove (61), one end of the friction column (2) is fixedly connected with a rectangular plate (62), and one end of the rectangular plate (62) penetrates through the sliding groove (61) and is in sliding connection with the inner wall of the rectangular plate, so that the sliding of the friction column (2) is guided and limited.
  6. 6. The woven fabric friction testing machine according to claim 5, wherein the friction ring (55) is fixedly connected with a connecting plate (63), a second shaft (64) is rotatably connected to the connecting plate (63), a guide groove piece (65) is formed in the rectangular plate (62), one end of the second shaft (64) is located in the guide groove piece (65), and the guide groove piece (65) is used for driving the second shaft (64) to move upwards in the process of pushing the friction column (2) to move so as to drive the friction ring (55) to separate from the flexible friction ring (54).
  7. 7. The woven cloth friction testing machine according to claim 6, wherein the guide groove piece (65) comprises a straight sliding groove (66) formed in a rectangular plate (62), one end of the second shaft (64) is located in the straight sliding groove (66) and is in sliding connection with the inner wall of the second shaft, and an inclined sliding groove (67) communicated with the straight sliding groove (66) is formed in the rectangular plate (62).
  8. 8. The woven fabric friction testing machine according to claim 7, wherein the mounting seat (13) is fixedly connected with a connecting pipe (68), one end of the rotating shaft (12) is positioned in the connecting pipe (68), a sliding protrusion (69) is fixedly connected to the inner wall of the connecting pipe (68), one end of the rotating shaft (12) is provided with a sliding groove (71), and one end of the sliding protrusion (69) is positioned in the sliding groove (71) and is in sliding connection with the inner wall of the sliding groove.

Description

Woven cloth friction testing machine Technical Field The invention relates to the technical field of textile detection equipment, in particular to a weaving friction testing machine. Background In the current design of Martindale abrasion-resistant testing machine, a core movement mechanism drives a mounting seat and a woven cloth to reciprocate along Li Sharu tracks (Lissajous Figure) through butterfly plates so as to simulate the multidirectional friction effect in actual working conditions. However, due to the solidification characteristic of the butterfly plate movement track, the contact area between the woven cloth and the abrasive is easy to be in immobilized distribution, and the factors such as the difference of the surface flatness of the abrasive, the fluctuation of the tension of the fabric or the anisotropy of the material can cause the change of local friction coefficient, so that the specific area is easy to be continuously subjected to high-strength friction, and the test of other parts is insufficient. Such non-uniformity of the friction distribution will lead to localized wear distortion, making it difficult to objectively evaluate the overall wear resistance of the fabric. In order to solve the problem, the prior art generally adopts a design that a rotating shaft is connected with a mounting seat and a butterfly plate. Specifically, the mounting seat is connected with the butterfly plate through the rotating shaft, so that the fabric can realize rotation at a certain angle by utilizing dynamic change of friction force in the process of following the movement of the butterfly plate. When the fabric is contacted with the abrasive, the friction force on the two sides is uneven due to the difference of friction coefficient and pressure distribution of each area of the contact surface, so that torque is generated to drive the fabric to rotate around the rotating shaft. The autorotation design enables each region of the woven cloth to periodically enter a high friction region, so that local abrasion failure caused by track solidification is effectively avoided, and the spatial uniformity of abrasion resistance test is improved. But this design also introduces a new problem in that the rotation of the fabric depends on an imbalance in the friction of the two sides, which imbalance itself has randomness and uncontrollability. For example, if the surface flatness of the abrasive is inconsistent, or the tension distribution difference exists in the fabric itself, some areas frequently contact the abrasive during the rotation process, and other areas contact at a lower frequency, and finally uneven friction of the fabric test surface is also caused to some extent. In addition, the rotation angle and the rotation speed are affected by friction force changes, so that the accurate control is difficult, the discreteness of the test result is further increased, the repeatability and the accuracy of the test are reduced, and therefore, the woven fabric friction tester is provided. Disclosure of Invention In order to solve the technical problems, the embodiment of the application provides a woven cloth friction testing machine, which comprises a testing machine main body and a butterfly plate arranged on the testing machine main body, wherein a rotating shaft is arranged on the butterfly plate, one end of the rotating shaft is provided with a mounting seat, the machine further comprises a plurality of groups of friction columns which are arranged in the butterfly plate in a sliding manner, a plurality of groups of friction columns are uniformly arranged around the rotating shaft, one end of each group of friction columns penetrates through the butterfly plate and contacts with the rotating shaft and is used for applying variable friction resistance to the rotating shaft, a rotating ring is rotationally connected to the butterfly plate, a transmission part is arranged in the butterfly plate, the friction columns are connected with the rotating ring through the transmission part, and in the process of rotating the rotating ring, the transmission part is utilized to gradually improve extrusion force to the rotating shaft, and after the extrusion force is improved to a certain value, the friction columns are driven to rotate so as to drive the rotating shaft and the mounting seat to actively rotate. In some embodiments, the transmission member comprises a hollow column I fixedly connected to the butterfly plate, one end of the rotating shaft penetrates through the hollow column I in a sliding manner, the rotating ring is fixedly connected with a hollow shaft I, the hollow column I penetrates through the hollow shaft and is rotationally connected with the hollow shaft I, an annular plate is arranged in the butterfly plate, and the friction column is in sliding connection with the annular plate; A rectangular groove is formed in the friction column, a sliding block is connected in the rectangular groove in a sl