Medical non-woven fabric detection equipment

Abstract

The invention discloses medical non-woven fabric detection equipment, and relates to the field of non-woven fabric detection, the medical non-woven fabric detection equipment comprises a platform, a fixed clamping piece and a movable clamping piece are arranged above the platform in parallel, a sliding rail is arranged on the surface of the platform, the fixed clamping piece is fixed at one end of the platform, the movable clamping piece is arranged along the sliding rail in a sliding mode, and the fixed clamping piece and the movable clamping piece are used for binding the two ends of non-woven fabric; the traction assembly is arranged along the sliding rail in a sliding mode, the traction assembly is located on the side, away from the fixed clamping piece, of the movable clamping piece, and a tension measuring spring is connected between the traction assembly and the movable clamping piece; according to the non-woven fabric tension measuring device, the traction assembly is driven to move, so that the single end of the tension measuring spring applies tension to the non-woven fabric, the expansion distance of the tension measuring spring which moves and stretches by the traction assembly is in direct proportion to the tension applied to the non-woven fabric, and by reading the moving distance of the traction assembly when the non-woven fabric is broken, the non-woven fabric is determined to be broken. The tensile strength of the non-woven fabric can be intuitively obtained, and the equipment is simple and convenient to operate.

Description

Technical Field

[0001] The invention relates to the field of non-woven fabric detection, and in particular to a medical non-woven fabric detection device. Background Art

[0002] Medical non-woven fabrics are used in multiple medical fields. It is necessary to ensure that medical non-woven fabrics have excellent quality and performance. Tensile strength is an important property of medical non-woven fabrics. Before medical non-woven fabrics are put into the production of medical products, they need to be tested for tensile strength in time to ensure that they can meet the special needs of the medical field.

[0003] The existing medical non-woven fabric tensile testing equipment has a complex composition and requires multiple sensors to monitor the test information. Although it can obtain accurate data on the tensile test of non-woven fabrics, it is difficult to operate and the test results are not intuitive enough. Summary of the invention

[0004] In order to make up for the deficiencies of the existing technical problems, the purpose of the present invention is to provide a medical non-woven fabric testing device, which is used to solve the problem that traditional equipment for testing the tensile strength of medical non-woven fabrics has a large number of sensing devices, resulting in high difficulty in equipment operation and insufficient intuitiveness in test results.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows: A medical non-woven fabric testing device comprises a platform, a fixed clamping part and a movable clamping part are arranged in parallel above the platform, a slide rail is arranged on the surface of the platform, the fixed clamping part is fixed to one end of the platform, the movable clamping part is arranged to slide along the slide rail, and the fixed clamping part and the movable clamping part are used to restrain the two ends of the non-woven fabric; A pulling assembly is slidably arranged along the slide rail, the pulling assembly is located on a side of the movable clamping member away from the fixed clamping member, and a tension measuring spring is connected between the pulling assembly and the movable clamping member; A driving assembly, the driving assembly is used to drive the pulling assembly to move along the slide rail so that the tension measuring spring applies a pulling force to the movable clamping member; A marking needle is connected to the pulling assembly, and scale marks are arranged on a straight line along the edge of the platform, and the marking needle is used to indicate the scale marks.

[0006] Preferably, the fixed clamping member includes a shaft member, both ends of which are rotatably supported by supports, a cover plate is flatly provided on the surface of the shaft member, the surface of the shaft member has two guide columns for slidingly inserting the cover plate, and a spring is connected between the shaft member and the cover plate so that the non-woven fabric can be clamped between the shaft member and the cover plate, and the dynamic clamping member has the same structure as the fixed clamping member.

[0007] Preferably, rubber strips are staggeredly provided on corresponding surfaces of the shaft and the cover plate.

[0008] Preferably, an end plate is coaxially fixed to one end of the shaft, a plurality of positioning holes are provided around the surface of the end plate, and a positioning screw passes through one of the positioning holes and is connected to the support platform for locking the rotation of the shaft.

[0009] Preferably, the pulling assembly includes a base plate, which slides linearly along the slide rail. A pulling plate is arranged parallel to a side of the base plate close to the movable clamping member. The pulling plate is slidably connected to the base plate through a plurality of sliding columns so that the distance between the pulling plate and the base plate is variable. The pulling spring is fixedly connected to the pulling plate. A pressing switch is arranged between the pulling plate and the base plate, and the pressing switch is connected to the driving assembly through a controller.

[0010] Preferably, the base plate is fixed with a hook plate, the hook plate is bent to a side of the pull plate close to the movable clamping member, a pressure sensor is installed on the surface of the hook plate, and the pressure sensor contacts the surface of the hook plate close to the movable clamping member.

[0011] Preferably, the movable clamping member is connected to a load plate, and two ends of the tensile measuring spring are respectively connected to the load plate and the tensile plate, and a plurality of tensile measuring springs are symmetrically arranged.

[0012] Preferably, the driving assembly includes a motor, which is mounted at one end of the platform. A lead screw is fixed to the output shaft of the motor, the lead screw is parallel to the slide rail, and the lead screw thread passes through the base plate.

[0013] Compared with the prior art, the advantages of the present invention are as follows: 1. The present invention drives the pulling component to move, so that one end of the tensile spring applies pressure and tension to the non-woven fabric. The pulling component moves and stretches the tensile spring, and the expansion distance is proportional to the tension applied to the non-woven fabric. By reading the moving distance of the pulling component when the non-woven fabric breaks, the tensile strength of the non-woven fabric can be intuitively obtained. The equipment is simple to operate and convenient to operate.

[0014] 2. In the present invention, when the mobile pulling component stretches the tensile spring to apply tension to the non-woven fabric, the base plate and the pulling plate reach the maximum separation state, and the push switch is kept from being touched. When the non-woven fabric breaks and the pulling plate touches the push switch due to the rebound force, the displacement drive of the pulling component can be stopped in time, maintaining high-precision detection position positioning and ensuring the accuracy of the detection value.

[0015] 3. The present invention clamps the end of the non-woven fabric by the fitted shaft and cover plate, and then rotates to wrap the non-woven fabric around the outside of the shaft and cover plate, thereby conveniently fixing the non-woven fabric and simplifying the test operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the overall structural schematic diagrams of the present invention.

[0017] Figure 2 This is the second schematic diagram of the overall structure of the present invention.

[0018] Figure 3 This is one of the structural schematic diagrams of the fixed clamping member of the present invention.

[0019] Figure 4 This is the second structural schematic diagram of the fixed clamping member of the present invention.

[0020] Figure 5 It is a schematic diagram of the rubber strip alignment structure of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the pulling assembly of the present invention.

[0022] Figure numerals: 1. Platform; 2. Fixed clamping member; 21. Shaft member; 22. Cover plate; 23. Support platform; 24. End plate; 25. Positioning hole; 26. Positioning screw; 27. Rubber strip; 28. Guide column; 3. Dynamic clamping member; 31. Load plate; 4. Pulling assembly; 41. Base plate; 42. Pull plate; 43. Sliding column; 44. Push switch; 45. Hook plate; 46. Pressure sensor; 5. Motor; 51. Screw; 6. Marking needle; 61. Scale mark; 7. Tension measuring spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] The medical non-woven fabric testing equipment is mainly composed of a platform 1, a fixed clamping member 2, a movable clamping member 3, a pulling component 4, a driving component and a display component; like Figure 1 , Figure 2 As shown, two parallel slide rails are symmetrically fixed on both sides of the upper surface of the platform 1, the fixed clamping member 2 is fixedly arranged at one end of the platform 1, and the movable clamping member 3 is slidably arranged along the slide rails through a slider, and the fixed clamping member 2 and the movable clamping member 3 have the same structure; like Figure 3 , Figure 4 As shown, the fixed clamping member 2 is composed of a shaft member 21 and a cover plate 22. Two radially extending guide posts 28 are symmetrically fixed on the surface of the shaft member 21. The guide posts 28 are plugged into the cover plate 22 so that the cover plate 22 can fit with the shaft member 21. A spring is connected between the shaft member 21 and the cover plate 22. The cross section of the shaft member 21 and the cover plate 22 after fitting is circular. like Figure 3 As shown, both ends of the shaft 21 are rotatably supported by the support 23, an end plate 24 is coaxially fixed at one end of the shaft 21, a plurality of positioning holes 25 are provided around the surface of the end plate 24, and a positioning screw 26 passes through a positioning hole 25 and is connected to the support 23; Elastically separate the shaft 21 and the cover plate 22, insert the end of the sample non-woven fabric between the shaft 21 and the cover plate 22, and use the elastic force to clamp the end of the non-woven fabric on the shaft 21 and the cover plate 22. Then rotate the shaft 21 to make the non-woven fabric wrap around the outside of the shaft 21 and the cover plate 22 for more than two circles. Then use the positioning screw 26 to pass through the positioning hole 25 and fix it to the support 23, rotate and lock the shaft 21, and complete the fixation of the end of the non-woven fabric. In this way, the fixed clamp 2 and the movable clamp 3 respectively fix the two ends of the non-woven fabric.

[0025] like Figure 5 As shown, rubber strips 27 are staggeredly arranged on the corresponding surfaces of the shaft 21 and the cover plate 22. The friction coefficient of the rubber strips 27 is relatively large. The rubber strips 27 flexibly squeeze the non-woven fabric, thereby improving the stable fixing effect of the non-woven fabric.

[0026] like Figure 6 As shown, the pulling assembly 4 is arranged on the side of the moving clamping member 3 away from the fixed clamping member 2, and the pulling assembly 4 includes a base plate 41. The two ends of the base plate 41 slide linearly with the slide rail through a slider, and a pulling plate 42 is arranged in parallel on the side of the base plate 41 close to the moving clamping member 3. A plurality of sliding columns 43 are fixed on the surface of the pulling plate 42. The pulling plate 42 is slidably plugged with the base plate 41 through the sliding columns 43, so that the distance between the pulling plate 42 and the base plate 41 is variable. A pressing switch 44 is arranged between the pulling plate 42 and the base plate 41, and a load plate 31 is installed on the side of the moving clamping member 3 close to the pulling assembly 4. A plurality of tension measuring springs 7 are symmetrically connected between the load plate 31 and the pulling plate 42. like Figure 1 , Figure 2 As shown, the driving assembly includes a motor 5, which is mounted at one end of the platform 1, and a lead screw 51 is fixedly mounted on the output shaft of the motor 5, the lead screw 51 is parallel to the slide rail, and the lead screw 51 threads through the base plate 41, and the push switch 44 is electrically connected to the motor 5 through the controller; like Figure 1 , Figure 2 As shown, the display assembly includes a needle 6, which is connected to the pulling assembly 4, and a scale mark 61 is arranged in a straight line distribution on the edge of the platform 1, and the needle 6 points to the scale mark 61; When implementing the tensile test, the motor 5 is turned on to drive the screw 51 to rotate, and the substrate 41 is moved along the slide rail through the threaded push. The distance between the pull plate 42 and the load plate 31 gradually increases and the tensile measuring spring 7 is stretched. At this time, the guide limit of the slide column 43 makes the maximum gap between the pull plate 42 and the substrate 41 reach the maximum gap, and the press switch 44 is not touched. As the tensile measuring spring 7 is gradually stretched, the tensile force on the non-woven fabric gradually increases. When the tensile force exceeds the tensile load of the non-woven fabric, the non-woven fabric is broken, and the elastic force causes the movable clamp 3 to quickly approach the pulling component 4. The rebound force causes the pull plate 42 to collide with the direction of the substrate 41, and the press switch 44 is touched. The controller promptly shuts down the motor 5 and reads the value of the scale mark 61 corresponding to the needle 6. The tensile force value applied by the tensile measuring spring 7 to the non-woven fabric is fed back through the overall displacement distance of the pulling component 4, thereby judging the maximum tensile strength of the non-woven fabric.

[0027] like Figure 6 As shown, a hook plate 45 is fixed on the top of the base plate 41, the hook plate 45 is bent to the side of the pull plate 42 close to the movable clamping member 3, and a pressure sensor 46 is installed on the surface of the hook plate 45, and the pressure sensor 46 contacts the surface of the hook plate 45 close to the movable clamping member 3; When the moving substrate 41 causes the pulling plate 42 to pull the tensile spring 7, the reaction force exerted on the tensile spring 7 is applied to the pressure sensor 46. The pressure sensor 46 monitors the tensile strength borne by the non-woven fabric, and records the maximum tensile strength before the non-woven fabric breaks. The numerical value recorded by the pressure sensor 46 is combined with the displacement detection method of the marking needle 6 to more comprehensively demonstrate the tensile strength of the non-woven fabric.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical nonwoven fabric detection device, characterized in that: include: A platform (1), a fixed clamping member (2) and a movable clamping member (3) are arranged parallel to each other above the platform (1), a slide rail is arranged on the surface of the platform (1), the fixed clamping member (2) is fixed to one end of the platform (1), and the movable clamping member (3) is arranged to slide along the slide rail, and the fixed clamping member (2) and the movable clamping member (3) are used to restrain the two ends of the non-woven fabric; A pulling assembly (4), the pulling assembly (4) being slidably arranged along the slide rail, the pulling assembly (4) being located on a side of the movable clamping member (3) away from the fixed clamping member (2), and a tension measuring spring (7) being connected between the pulling assembly (4) and the movable clamping member (3); A driving assembly, the driving assembly being used to drive the pulling assembly (4) to move along the slide rail so that the tension measuring spring (7) applies a pulling force to the movable clamping member (3); A marking needle (6) is connected to the pulling assembly (4), and scale marks (61) are arranged in a straight line distribution on the edge of the platform (1). The marking needle (6) is used to indicate the scale marks (61).

2. The medical nonwoven fabric detection device according to claim 1, characterized in that: The fixed clamping member (2) comprises a shaft member (21), both ends of which are rotatably supported by supports (23), a cover plate (22) being arranged flatly on the surface of the shaft member (21), two guide columns (28) being provided on the surface of the shaft member (21) for slidably plugging the cover plate (22), and a spring being connected between the shaft member (21) and the cover plate (22) so that the non-woven fabric can be clamped between the shaft member (21) and the cover plate (22), and the movable clamping member (3) has the same structure as the fixed clamping member (2).

3. The medical nonwoven fabric detection device according to claim 2, characterized in that: The corresponding surfaces of the shaft member (21) and the cover plate (22) are staggeredly provided with rubber strips (27).

4. The medical nonwoven fabric detection device according to claim 2, characterized in that: An end plate (24) is coaxially fixed to one end of the shaft member (21), a plurality of positioning holes (25) are provided around the surface of the end plate (24), and a positioning screw (26) passes through a positioning hole (25) and is connected to the support platform (23) for locking the shaft member (21) from rotating.

5. The medical nonwoven fabric detection device according to claim 1, characterized in that: The pulling assembly (4) comprises a base plate (41), the base plate (41) slides linearly along the slide rail, a pulling plate (42) is arranged parallel to a side of the base plate (41) close to the movable clamping member (3), the pulling plate (42) is slidably plugged with the base plate (41) via a plurality of sliding columns (43), so that the distance between the pulling plate (42) and the base plate (41) is variable, the tension measuring spring (7) is fixedly connected to the pulling plate (42), a pressing switch (44) is arranged between the pulling plate (42) and the base plate (41), and the pressing switch (44) is connected to the driving assembly via a controller.

6. The medical nonwoven fabric detection device according to claim 5, characterized in that: The base plate (41) is fixed with a hook plate (45), the hook plate (45) is bent to a side of the pull plate (42) close to the movable clamping member (3), a pressure sensor (46) is mounted on the surface of the hook plate (45), and the pressure sensor (46) contacts the surface of the hook plate (45) close to the movable clamping member (3).

7. The medical nonwoven fabric detection device according to claim 6, characterized in that: The movable clamping member (3) is connected to a load plate (31), and two ends of the tension measuring spring (7) are respectively connected to the load plate (31) and the tension plate (42), and a plurality of tension measuring springs (7) are symmetrically arranged.

8. The medical nonwoven fabric detection device according to claim 5, characterized in that: The driving assembly comprises a motor (5), the motor (5) being mounted on one end of the platform (1), a lead screw (51) being fixed to the output shaft of the motor (5), the lead screw (51) being parallel to the slide rail, and the lead screw (51) having a thread passing through the base plate (41).

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