Positioning device for testing rebound resilience of knitted fabric

Abstract

The utility model discloses a positioning device for testing rebound resilience of knitted fabric, which comprises a working table, supporting legs are arranged on two sides of the lower end of the working table, a guide rod is arranged at the upper end of the working table, clamping mechanisms are slidably connected to two sides of the upper end of the working table, an extending mechanism is fixedly connected to the upper end of the working table, and the extending mechanism is fixedly connected to the lower end of the working table. Tooth grooves are formed in the two sides of the upper end of the workbench. Through the arranged clamping mechanism, the equipment can fix and clamp the two ends of a fabric needing to be tested, meanwhile, the distance between the movable frames can be adjusted according to the size of the fabric, the fabric is prevented from being pulled before testing, the stability of the equipment is effectively improved, the fixing effect is good, the accuracy during testing is improved, and the testing efficiency is improved. Meanwhile, the deformation degree of the fabric can be accurately obtained; by arranging the extension mechanism, the equipment can push and pull the clamped fabric, so that the anti-pull strength of the fabric is tested, the operation is simple, and the labor intensity of a user is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of knitted fabric resilience testing, in particular to a positioning device for knitted fabric resilience testing. Background Art

[0002] Fabric elastic recovery test is a common test in the fabric inspection process. The main test method is to select a fabric sample of specified size, under a certain period of tension, measure the resulting stretch length and the rebound recovery after the load is removed;

[0003] According to patent document: CN220729831 U, a tensile strength test device for cashmere-like fabrics is disclosed. The device includes a base and a support rod fixed at the center of the top thereof, and also includes a U-shaped support frame fixed to the top of the base. A hydraulic rod for providing power to other parts is fixed to the top of the support frame inner cavity. The output shaft of the hydraulic rod and the top of the support rod are both fixed to a mounting shell. A positioning shell with an arc shape is set on one side of the inner cavity of the mounting shell. The interior of the positioning shell is slidably connected to a positioning plate with the same radius as the positioning shell. One end of the positioning shell is provided with a positioning mechanism that can drive the positioning shell and the positioning plate to rotate. A squeezing mechanism for fixing the fabric is provided on one side of the mounting shell. A moving mechanism is provided on one side of the inner cavity of the support frame. The surface of the moving mechanism is provided with a display mechanism that can accurately display the position of the mounting shell. The utility model can fix the fabric by cooperating with the positioning shell, the positioning plate and the positioning mechanism so that it will not move during the test process. Then, the squeezing mechanism is used to fix it again, effectively improving the fixing effect and improving the accuracy of the test.

[0004] Currently, traditional testing positioning devices, including the clamping structure of knitted fabrics, have some structural defects. During tensile strength tests, the fabric is easily unstable and affects the measurement results. In addition, the display of test data is not intuitive enough, which reduces the convenience of use and affects the test effect of tension. The operation is complicated and has great limitations. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning device for testing the resilience of knitted fabrics, so as to solve the problems of the current traditional testing positioning device proposed in the above-mentioned background technology, in which the clamping structure of the knitted fabric is prone to unstable fabric fixation due to some structural defects during the tensile strength test, thereby affecting the measurement results, and the display of the test data is not intuitive enough, which reduces the convenience of use, affects the test effect of the tensile force, and is complicated to operate and has great limitations.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a workbench, support legs are provided on both sides of the lower end of the workbench, a guide rod is provided on the upper end of the workbench, clamping mechanisms are slidably connected to both sides of the upper end of the workbench, an extension mechanism is fixed to the upper end of the workbench, and tooth grooves are provided on both sides of the upper end of the workbench;

[0007] The camming mechanism comprises a movable frame, the lower end of the movable frame is slidably connected to the upper end of the workbench, the front and rear ends of the movable frame are provided with handles, guide holes are provided on both sides of the movable frame, the top wall of the movable frame is fixedly connected to an electric push rod, the outer wall of the electric push rod is sleeved with a spring, the lower end of the spring is fixedly connected to a pressing plate, the lower end of the pressing plate is fixedly connected to a rack, the upper end of the movable frame is fixedly connected to a mounting frame, the upper end of the mounting frame is embedded in and connected to a clamping groove, the inner walls of both sides of the mounting frame are threadedly connected with threaded rods, the upper end of the threaded rods is rotatably connected to the clamping plate, and the lower end of the clamping plate is fixedly connected to a convex plate.

[0008] Preferably, the outer side wall of the movable frame is fixedly connected to one side of the handle, and the inner walls on both sides of the movable frame are connected through the outer wall of the guide hole.

[0009] Preferably, the shape of the guide hole matches the shape of the guide rod.

[0010] Preferably, the upper ends of the supporting legs are fixedly connected to both sides of the lower end of the workbench, and the lower ends of the guide rods are fixedly connected to the upper end of the workbench.

[0011] Preferably, the extension mechanism includes a fixed frame, the lower end of the fixed frame is fixedly connected to the upper end of the workbench, the bottom wall of the fixed frame is provided with a telescopic rod, one side of the fixed frame is provided with a scale line, the outer wall of the fixed frame is slidably connected to a lifting plate, the upper end of the lifting plate is fixedly connected to a lifting plate, and the upper end of the lifting plate is fixedly connected to a lifting cylinder.

[0012] Preferably, the bottom wall of the fixing frame is fixedly connected to the lower end of the telescopic rod, and one side of the fixing frame is fixedly connected to one side of the scale line.

[0013] Preferably, holes matching the lifting plates are provided on both sides of the upper end of the fixing frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The clamping mechanism can enable the equipment to fix and clamp both ends of the fabric to be tested. At the same time, the distance between the movable frames can be adjusted according to the size of the fabric to avoid pulling the fabric before testing, effectively improving the stability of the device, and the fixing effect is good, which improves the accuracy of the test. At the same time, the deformation degree of the fabric can be accurately obtained, and the applicability is better when used. It solves the problem that the current device has poor fixing effect on the fabric during use and cannot know the deformation degree of the fabric.

[0016] 2. The extension mechanism can enable the equipment to push and pull the fabric after clamping, so as to test the tensile strength of the fabric. The operation is simple and reduces the labor intensity of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the present utility model;

[0019] Figure 3 This is a schematic diagram of the extension mechanism structure of the utility model;

[0020] Figure 4 It is a schematic diagram of a three-dimensional side view of the local structure of the utility model.

[0021] In the figure: 1. Workbench; 2. Support leg; 3. Guide rod; 4. Clamping mechanism; 5. Extension mechanism; 6. Tooth groove; 41. Movable frame; 42. Handle; 43. Guide hole; 44. Electric push rod; 45. Spring; 46. Press plate; 47. Rack; 48. Mounting frame; 49. Clamping groove; 410. Threaded rod; 411. Clamping plate; 412. Protruding plate; 51. Fixed frame; 52. Telescopic rod; 53. Scale line; 54. Lifting plate; 55. Lifting plate; 56. Lifting cylinder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 Figure 2 and Figure 4The utility model provides a technical solution: a positioning device for testing the resilience of knitted fabrics, comprising a workbench 1, support legs 2 are provided on both sides of the lower end of the workbench 1, a guide rod 3 is provided on the upper end of the workbench 1, a clamping mechanism 4 is slidably connected to both sides of the upper end of the workbench 1, an extension mechanism 5 is fixedly connected to the upper end of the workbench 1, tooth grooves 6 are provided on both sides of the upper end of the workbench 1, the clamping mechanism 4 comprises a movable frame 41, the lower end of the movable frame 41 is slidably connected to the upper end of the workbench 1, handles 42 are provided at the front and rear ends of the movable frame 41, guide holes 43 are provided on both sides of the movable frame 41, an electric push rod 44 is fixedly connected to the top wall of the movable frame 41, a spring 45 is provided on the outer wall of the electric push rod 44, and the spring 45 The lower end of the movable frame 41 is fixedly connected to a pressing plate 46, the lower end of the pressing plate 46 is fixedly connected to a rack 47, the upper end of the movable frame 41 is fixedly connected to a mounting frame 48, the upper end of the mounting frame 48 is embedded in a clamping groove 49, the inner walls on both sides of the mounting frame 48 are threadedly connected to threaded rods 410, the upper end of the threaded rods 410 is rotatably connected to a clamping plate 411, the lower end of the clamping plate 411 is fixedly connected to a convex plate 412, the outer side wall of the movable frame 41 is fixedly connected to one side of the handle 42, the inner walls on both sides of the movable frame 41 are connected through the outer wall of the guide hole 43, the shape of the guide hole 43 matches the shape of the guide rod 3, the upper end of the supporting leg 2 is fixedly connected to both sides of the lower end of the workbench 1, and the lower end of the guide rod 3 is fixedly connected to the upper end of the workbench 1;

[0024] The upper ends of the mounting frame 48 are both threadedly inserted with threaded rods 410 on both sides, and the bottom ends of the threaded rods 410 are fixedly connected with knobs. The top ends of the two threaded rods 410 are rotated together to connect with a clamping plate 411. The clamping plate 411 is arranged parallel to the mounting frame 48. The bottom end of the clamping plate 411 is bonded with a convex plate 412. The convex plate 412 is made of rubber material. A clamping groove 49 is provided on the top of the mounting frame 48 at the corresponding position of the convex plate 412. The mounting frame 48 is slidably connected to the workbench 1 through the movable frame 41, and then the threaded rod is rotated. 410, so that the threaded rod 410 moves up on the mounting frame 48, thereby changing the distance between the mounting frame 48 and the clamping plate 411, the clamping groove 49 and the convex plate 412 are set, so that the fabric can be clamped tightly, effectively improving the stability of the test, and a movable frame 41 is installed between the two guide rods 3 for sliding. The top of the movable frame 41 is fixedly connected to the two ends of the bottom of the mounting frame 48. A pressing plate 46 is provided between the movable frame 41 and the workbench 1, and the bottom of the pressing plate 46 is equidistantly connected to the rack 47. The movable frame 41 is connected to the workbench 1. The electric push rods 44 between the pressing plates 46 are sleeved with springs 45, and the top of the workbench 1 corresponding to the position of the rack 47 is provided with a plurality of tooth grooves 6, and the racks 47 are meshed with the adjacent tooth grooves 6. The front and rear ends of the movable frame 41 are fixedly connected with handles 42. By changing the position of the movable frame 41 on the workbench 1, the distance between the two clamping plates 411 can be adjusted, which is convenient for fixing and clamping fabrics of different sizes. By setting the spring 45, the rack 47 at the lower end of the pressing plate 46 can be pushed to engage with the adjacent tooth grooves 6. The groove 6 is engaged to position the movable frame 41, which effectively improves the stability of fabric clamping. A knob is added to the threaded rod 410 on the mounting frame 48, and the knob is connected to the other end of the threaded rod 410. The distance between the clamping plate 411 and the clamping groove 49 is manually fine-tuned to adapt to knitted fabrics of different thicknesses or materials to ensure the accuracy and stability of the test. Anti-slip textures are added to the front and rear handles 42 of the movable frame 41 to improve the grip stability. At the same time, the overall performance, ease of operation and safety of the device are further improved.

[0025] See also Figure 1 、 Figure 3 ,and Figure 4 The extension mechanism 5 includes a fixed frame 51, the lower end of the fixed frame 51 is fixedly connected to the upper end of the workbench 1, a telescopic rod 52 is provided on the bottom wall of the fixed frame 51, a scale line 53 is provided on one side of the fixed frame 51, a lifting plate 54 is slidably connected to the outer wall of the fixed frame 51, a lifting plate 55 is fixedly connected to the upper end of the lifting plate 54, a lifting cylinder 56 is fixedly connected to the upper end of the lifting plate 55, the bottom wall of the fixed frame 51 is fixedly connected to the lower end of the telescopic rod 52, one side of the fixed frame 51 is fixedly connected to one side of the scale line 53, and holes matching the lifting plate 55 are opened on both sides of the upper end of the fixed frame 51;

[0026] The lifting plate 54 is connected to the lifting plate 55 at both ends of the top, and the lifting plates 55 pass through the fixed frame 51 and are horizontally connected to the lifting tube 56 at the ends. The inner wall of the lifting plate 54 is overlapped with the outer wall of the fixed frame 51, so that the lifting plate 54, the lifting plate 55 and the lifting tube 56 can be stably installed. At the same time, the top of the fixed frame 51 can play a good limiting effect. Then, the telescopic rod 52 is connected to the external power supply, so that the lifting plate 54 can be driven to move the lifting tube 56 upward to lift and pull the fabric, so as to test the tensile strength of the fabric. By setting the scale line 53, the length of the fabric pulled can be understood by observing the scale line 53. The combination of the lifting plate 54 and the lifting plate 55 and the fixed connection between them ensure the stability and load-bearing capacity of the structure. The sliding connection of the lifting plate 54 on the outer wall of the fixed frame 51 enables it to be smoothly raised and lowered along the fixed frame 51, providing the necessary moving space for the lifting plate 55 and the lifting tube 56 at the upper end.

[0027] Working principle: First, threaded rods 410 are threadedly inserted on both sides of the upper end of the mounting frame 48, and the bottom ends of the threaded rods 410 are fixedly connected with knobs. The top ends of the two threaded rods 410 are rotated together to connect with the clamping plate 411. The clamping plate 411 is arranged parallel to the mounting frame 48. The bottom end of the clamping plate 411 is bonded with a convex plate 412, which is made of rubber material. A clamping groove 49 is provided on the top of the mounting frame 48 at the corresponding position of the convex plate 412, and the mounting frame 48 is slidably connected to the workbench 1 through the movable frame 41. Then, By rotating the threaded rod 410, the threaded rod 410 moves up the mounting frame 48, thereby changing the distance between the mounting frame 48 and the clamping plate 411. The clamping groove 49 and the convex plate 412 are provided, so that the fabric can be clamped tightly, effectively improving the stability of the test. A movable frame 41 is slidably installed between the two guide rods 3. The top of the movable frame 41 is fixedly connected to the two ends of the bottom of the mounting frame 48. A pressing plate 46 is provided between the movable frame 41 and the workbench 1. The bottom of the pressing plate 46 is equidistantly connected to the rack 47. The electric push rod 44 between the frame 41 and the pressing plate 46 is provided with a spring 45. The top of the workbench 1 at the corresponding position of the rack 47 is provided with a plurality of tooth grooves 6. The rack 47 is engaged with the adjacent tooth grooves 6. The front and rear ends of the movable frame 41 are fixedly connected with handles 42. By changing the position of the movable frame 41 on the workbench 1, the distance between the two clamping plates 411 can be adjusted to facilitate the fixed clamping of fabrics of different sizes. The spring 45 is provided to push the rack 47 at the lower end of the pressing plate 46 to the adjacent The tooth groove 6 is engaged with the tooth groove 6 to position the movable frame 41, which effectively improves the stability of fabric clamping. A knob is added to the threaded rod 410 on the mounting frame 48, and the knob is connected to the other end of the threaded rod 410. The distance between the clamping plate 411 and the clamping groove 49 is manually fine-tuned to adapt to knitted fabrics of different thicknesses or materials, ensuring the accuracy and stability of the test. Anti-slip textures are added to the front and rear handles 42 of the movable frame 41 to improve the grip stability. At the same time, the overall performance, ease of operation and safety of the device are further improved.

[0028] Then, lifting plates 55 are vertically connected to both ends of the top of the lifting plate 54. The lifting plates 55 pass through the fixing frame 51 and are horizontally connected to the lifting tube 56 at their ends. The inner wall of the lifting plate 54 is overlapped with the outer wall of the fixing frame 51, so that the lifting plate 54, the lifting plate 55 and the lifting tube 56 can be stably installed. At the same time, the top of the fixing frame 51 can play a good limiting effect. Then, the telescopic rod 52 is connected to the external power supply, so that the lifting plate 54 can be driven to move the lifting tube 56 upward to lift and pull the fabric, so as to test the tensile strength of the fabric. By setting the scale line 53, the length of the fabric pulling can be understood by observing the scale line 53. The lifting plate 54 and the lifting plate 55 are The fixed connection between them ensures the stability and load-bearing capacity of the structure. The sliding connection of the lifting plate 54 on the outer wall of the fixed frame 51 enables it to be smoothly lifted and lowered along the fixed frame 51, providing the necessary moving space for the lifting plate 55 and the lifting cylinder 56 at the upper end. The extension mechanism 5 realizes the function of accurately adjusting the height and position of the fabric during the processing through the precise coordination of the fixed frame 51, telescopic rod 52, scale line 53, lifting plate 54, lifting plate 55 and lifting cylinder 56. It has the characteristics of compact structure, easy operation and stable performance. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for testing the resilience of knitted fabrics, comprising a workbench (1), characterized in that: Support legs (2) are provided on both sides of the lower end of the workbench (1), a guide rod (3) is provided on the upper end of the workbench (1), a clamping mechanism (4) is slidably connected to both sides of the upper end of the workbench (1), an extension mechanism (5) is fixed to the upper end of the workbench (1), and tooth grooves (6) are provided on both sides of the upper end of the workbench (1); The clamping mechanism (4) comprises a movable frame (41), the lower end of the movable frame (41) is slidably connected to the upper end of the workbench (1), the front and rear ends of the movable frame (41) are both provided with handles (42), both sides of the movable frame (41) are provided with guide holes (43), the top wall of the movable frame (41) is fixedly connected to an electric push rod (44), the outer wall of the electric push rod (44) is provided with a spring (45), the lower end of the spring (45) is fixedly connected to a push rod A pressing plate (46), the lower end of the pressing plate (46) is fixedly connected to a rack (47), the upper end of the movable frame (41) is fixedly connected to a mounting frame (48), the upper end of the mounting frame (48) is embedded in a clamping groove (49), the inner walls on both sides of the mounting frame (48) are threadedly connected to threaded rods (410), the upper end of the threaded rod (410) is rotatably connected to a clamping plate (411), and the lower end of the clamping plate (411) is fixedly connected to a convex plate (412).

2. A positioning device for testing the resilience of knitted fabrics according to claim 1, characterized in that: The outer side wall of the movable frame (41) is fixedly connected to one side of the handle (42), and the inner walls on both sides of the movable frame (41) are connected through the outer wall of the guide hole (43).

3. The positioning device for testing the resilience of knitted fabrics according to claim 2, characterized in that: The shape of the guide hole (43) matches the shape of the guide rod (3).

4. The positioning device for testing the resilience of knitted fabrics according to claim 1, characterized in that: The upper ends of the support legs (2) are fixedly connected to both sides of the lower end of the workbench (1), and the lower ends of the guide rods (3) are fixedly connected to the upper end of the workbench (1).

5. The positioning device for testing the resilience of knitted fabrics according to claim 1, characterized in that: The extending mechanism (5) comprises a fixing frame (51), the lower end of the fixing frame (51) is fixedly connected to the upper end of the workbench (1), a telescopic rod (52) is provided on the bottom wall of the fixing frame (51), a scale line (53) is provided on one side of the fixing frame (51), a lifting plate (54) is slidably connected to the outer wall of the fixing frame (51), the upper end of the lifting plate (54) is fixedly connected to a lifting plate (55), and the upper end of the lifting plate (55) is fixedly connected to a lifting cylinder (56).

6. A positioning device for testing the resilience of knitted fabrics according to claim 5, characterized in that: The bottom wall of the fixing frame (51) is fixedly connected to the lower end of the telescopic rod (52), and one side of the fixing frame (51) is fixedly connected to one side of the scale line (53).

7. The positioning device for testing the resilience of knitted fabrics according to claim 5, characterized in that: Both sides of the upper end of the fixing frame (51) are provided with holes matching the lifting plate (55).

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