Method and device for characterizing high polymer material

Abstract

The invention relates to the technical field of high polymer material testing, in particular to a characterization method and device for a high polymer material, the characterization device comprises a rack, a conveying assembly, a cutting assembly and a pulling assembly, the cutting assembly comprises a cutting opening formed in a base plate, a lower cutting mechanism arranged at the cutting opening and an upper cutting mechanism arranged on the rack, according to the cutting device, by arranging the tightening rolling shaft and the fixed shaft component, a high polymer material is tightened before being cut, wrinkles are avoided when a high polymer test piece is cut, by arranging the pressing component and the outer pushing block, the cut high polymer test piece is fixed, the high polymer test piece is kept in a pulled state all the time, and by arranging the telescopic block and the inclined sliding surface, the high polymer test piece can be cut more stably. And the clamping mechanism can push away the telescopic block to clamp the macromolecular test piece, so that the clamped macromolecular test piece is inclined, and the test result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of polymer material testing, in particular to a polymer material characterization method and device. Background Art

[0002] The characterization of polymer materials is the analysis and study of the structure, properties and changes of polymer materials. Characterization methods can help researchers understand the molecular structure, degree of polymerization, molecular weight distribution, crystalline or amorphous state, thermal properties, mechanical properties and other characteristics of materials, thereby providing data support for the optimization and application of materials. For example, the characterization of polyimide films is now a research focus of major universities.

[0003] A polymer material characterization device provided by publication number CN210465137U includes: a body; a controller; a conveying mechanism arranged on the body and used to convey polymer film; an optical detection mechanism arranged on the body and cooperating with the controller to detect the optical properties of the conveyed polymer film; a cutting mechanism arranged on the body and capable of cutting the conveyed polymer film; and a mechanical detection mechanism arranged on the body and cooperating with the controller to detect the mechanical properties of the cut film sample.

[0004] However, when the above-mentioned polymer material characterization device is in use, when the thin film sample of the polymer material is cut and falls from the suction cup and is adsorbed on the lower clamp, because the polymer specimen has a falling process and the polymer specimen is generally of low quality, the polymer material will be skewed when falling, causing the polymer specimen to be in a skewed state when being clamped, affecting the test results. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for characterizing polymer materials to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] In one aspect, a polymer material characterization device is provided, comprising:

[0008] A frame, wherein a base plate is disposed on the frame, and a pull-down plate is disposed below the base plate;

[0009] A conveying assembly, the conveying assembly comprising a loading roller and a tensioning roller arranged on the base plate, and a power roller arranged on the pull-down plate and located below the tensioning roller;

[0010] The cutting assembly comprises a cutting opening provided on the substrate, a lower cutting mechanism arranged at the cutting opening, an upper cutting mechanism arranged on the frame, the upper cutting mechanism comprises a cutting blade component arranged on the frame and a pressing member arranged on the cutting blade component, the lower cutting mechanism comprises a lower mounting plate arranged on the substrate, a lower clamping telescopic rod and a lower cutting telescopic rod arranged on the lower mounting plate, an inner supporting rod arranged on the lower clamping telescopic rod, an outer supporting rod sleeved on the inner supporting rod, a connecting plate arranged on the outer supporting rod and connected to the lower cutting telescopic rod, a cutting seat arranged on the outer supporting rod, a cutting groove and an outer pushing groove provided on the cutting seat, an outer pushing block provided in the outer pushing groove and connected to the inner supporting rod, a telescopic groove provided on the outer pushing block, a telescopic block provided in the telescopic groove, a telescopic spring provided in a side wall of the telescopic groove and connected to the telescopic block, a slide rail provided on the wall of the telescopic groove and connected to the telescopic block, and an inclined sliding surface provided on the telescopic block;

[0011] The pulling assembly includes a transverse movement mechanism arranged on the frame and a clamping mechanism arranged on the transverse movement mechanism. The power roller is used to pass the polymer material on the loading roller through the substrate and then roll it onto the power roller after the tension roller turns. The lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, while the cutting knife component and the pressing component move downward, so that the cutting knife component is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing component and the push-out block. The lower cutting telescopic rod drives the cutting seat to move downward, and the lower clamping telescopic rod drives the push-out block to leave the push-out groove, so that the push-out block and the pressing member move upward synchronously until the cutting member is separated from the pressing member. When the push-out block leaves the push-out groove, the telescopic spring pushes the telescopic block to extend outward to support the polymer specimen, and the transverse movement mechanism drives the clamping mechanism to move to the telescopic block, so that the clamping mechanism slides along the inclined sliding surface to push the telescopic block to reset, so that the clamping mechanism clamps the polymer specimen for a pulling test.

[0012] Preferably, the loading roller, tensioning roller and power roller all include a roller component and a fixed axis component arranged on the roller component, the roller component includes a rotating plate arranged on the base plate or the pull-down plate, a rotating sleeve inserted on the rotating plate, a moving rod inserted in the rotating sleeve, a limiting plate arranged on the moving rod, and a clamping rod spring sleeved on the moving rod, and the fixed axis component includes a rotating abutment arranged on the rotating sleeve, a fixing ring arranged on the rotating sleeve, a fixed axis hole opened on the fixing ring, a fixed axis telescopic rod arranged on the rotating plate, a fixed axis block arranged on the fixed axis telescopic rod, a fixed axis rod arranged in the fixed axis block, and a fixed axis spring arranged in the fixed axis block and connected to the fixed axis rod, which pushes the moving rod to install the roller shaft on the moving rod, so that the clamping rod spring pushes the limiting plate to clamp the roller shaft, and the rotating abutment makes the rotating abutment abut against the limiting plate to fix the roller shaft.

[0013] Preferably, the tensioning roller also includes a push plate arranged on the rotating plate, a tensioning telescopic rod arranged on the frame, and the power roller also includes a winding motor arranged on the rotating plate and connected to the rotating sleeve, and the winding motor drives the roller to rotate and wind up the polymer material. After the winding motor stops, the fixed-axis telescopic rod fits the fixing ring, so that the fixed-axis rod is inserted into the fixed-axis hole to fix the roller, and the tensioning telescopic rod drives the corresponding roller to move to tighten the polymer material.

[0014] Preferably, the cutting knife component includes a top plate arranged on the frame, an upward pull-up telescopic rod arranged on the top plate, a cutting mounting plate arranged on the upward pull-up telescopic rod, a cutting knife telescopic rod arranged on the cutting mounting plate, a lower pressure plate arranged on the cutting knife telescopic rod, and a cutting knife arranged on the lower pressure plate.

[0015] Preferably, the pressing member includes a displacement sleeve arranged on the lower pressure plate, a pressing rod arranged in the displacement sleeve, a pressing upper plate arranged on the pressing rod, and a pressing spring sleeved on the pressing rod.

[0016] Preferably, the transverse movement mechanism includes a mounting frame arranged on the frame, a transverse movement module arranged on the mounting frame, a transverse movement plate arranged on the transverse movement module, and a pressure sensor arranged on the transverse movement plate.

[0017] Preferably, the clamping mechanism includes an upper clamping shell arranged on the pressure sensor, a lower clamping plate arranged in the upper clamping shell, a second slide rail arranged in the upper clamping shell and connected to the lower clamping plate, and a clamping telescopic rod arranged on the upper clamping shell and connected to the lower clamping plate.

[0018] Preferably, a light transmittance detector is also provided on the substrate, and the light transmittance detector is used to detect the light transmittance of the polymer material.

[0019] Preferably, when the lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, the upper pulling telescopic rod drives the cutting knife and the pressing upper plate to move downward, so that the cutting knife is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing upper plate and the push-out block; when the lower cutting telescopic rod drives the cutting seat to move downward, the lower clamping telescopic rod drives the push-out block to move upward and leave the push-out groove, the cutting knife telescopic rod drives the cutting knife and the pressing upper plate, so that the push-out block and the pressing upper plate move upward synchronously; when the When the pressing shift rod contacts the cutting mounting plate, the pressing upper plate and the pushing block stop, so that the cutting knife telescopic rod drives the cutting knife to continue to move upward until the cutting knife is separated from the pressing upper plate, and the transverse movement module drives the upper clamping shell to move to the telescopic block, so that the clamping telescopic rod drives the lower clamping plate to move upward, so that the lower clamping plate slides along the inclined sliding surface to push the telescopic block to reset, so that the clamping mechanism clamps the polymer specimen, the transverse movement module pulls the specimen, and the pressure sensor records pressure data.

[0020] On the other hand, a characterization method based on the characterization device of the polymer material described in any one of the above is also provided, comprising:

[0021] S1: Push the moving rod to install the roller shaft on the moving rod, so that the clamp rod spring pushes the limit plate to clamp the roller shaft, and rotates the rotating abutment rod to make the rotating abutment rod abut against the limit plate to fix the roller shaft;

[0022] S2: The winding motor drives the roller to rotate and wind up the polymer material, so that the polymer material passes through the transmittance detector, and the transmittance detector detects the transmittance of the polymer material;

[0023] S3: After the winding motor stops, the fixed-axis telescopic rod is attached to the fixing ring, so that the fixed-axis rod is inserted into the fixed-axis hole to fix the roller shaft, and the tensioning telescopic rod drives the corresponding roller shaft to move to tighten the polymer material;

[0024] S4: the lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, and the upper pulling telescopic rod drives the cutting knife and the pressing upper plate to move downward, so that the cutting knife is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing upper plate and the push-out block;

[0025] S5: the lower cutting telescopic rod drives the cutting seat to move downward, the lower clamping telescopic rod drives the push-out block to move upward and leave the push-out groove, the telescopic spring pushes the telescopic block to extend outward to support the polymer specimen, the cutting knife telescopic rod drives the cutting knife and the pressing upper plate, so that the push-out block and the pressing upper plate move upward synchronously, and when the pressing moving rod contacts the cutting mounting plate, the pressing upper plate and the push-out block stop, so that the cutting knife telescopic rod drives the cutting knife to continue to move upward until the cutting knife is separated from the pressing upper plate;

[0026] S6: The lateral movement module drives the upper clamping shell to move to the telescopic block, so that the clamping telescopic rod drives the lower clamping plate to move up, so that the lower clamping plate slides along the inclined sliding surface to push the telescopic block to reset, so that the upper clamping shell and the lower clamping plate clamp the polymer specimen, so that the lateral movement module pulls the specimen, and the pressure sensor records pressure data;

[0027] S7: Repeat steps 2-7, conduct several experiments, and obtain the average value of the data.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention straightens the polymer material before cutting by arranging a tensioning roller and a fixed axis component, thereby avoiding wrinkles when cutting the polymer specimen; fixes the cut polymer specimen by arranging a pressing component and an extrapolation block, so that the cut polymer specimen is always kept in a state of being pulled; and the clamping mechanism can push open the telescopic block to clamp the polymer specimen by arranging an inclined sliding surface, so that the clamped polymer specimen will be skewed, thereby making the test result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the hidden polymer material of the present invention;

[0032] Figure 3 It is a structural schematic diagram of another perspective of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the lower cutting mechanism of the present invention;

[0034] Figure 5 It is a schematic cross-sectional structure diagram of the extrapolation block of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the extrapolation block of the present invention;

[0036] Figure 7 It is a schematic structural diagram of a roller component and a fixed axis component of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the fixed axis block of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structure of the cutting knife of the present invention;

[0039] Fig.10 It is a schematic cross-sectional view of the cutting knife of the present invention;

[0040] Fig.11 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0041] In the figure: 1, frame; 2, base plate; 3, pull-down plate; 4, cutting opening; 5, lower mounting plate; 6, lower clamp telescopic rod; 7, lower cutting telescopic rod; 8, inner support rod; 9, outer support rod; 10, connecting plate; 11, cutting seat; 12, cutting groove; 13, push-out groove; 14, push-out block; 15, telescopic groove; 16, telescopic block; 17, telescopic spring; 18, slide rail 1; 19, inclined sliding surface; 20, rotating plate; 21, rotating sleeve; 22, moving rod; 23, limit plate; 24, clamp rod spring; 25, rotating stop rod; 26, fixing ring; 27, fixed axis hole; 28, fixed axis telescopic rod; 2 9. Fixed axis block; 30. Fixed axis rod; 31. Fixed axis spring; 32. Roller; 33. Push plate; 34. Tension telescopic rod; 35. Winding motor; 36. Top plate; 37. Pull-up telescopic rod; 38. Cutting installation plate; 39. Cutting knife telescopic rod; 40. Lower pressure plate; 41. Cutting knife; 42. Displacement sleeve; 43. Pressing shift rod; 44. Pressing upper plate; 45. Pressing spring; 46. Mounting frame; 47. Transverse movement module; 48. Transverse movement plate; 49. Pressure sensor; 50. Upper clamping shell; 51. Lower clamping plate; 52. Slide rail 2; 53. Clamping telescopic rod; 54. Transmittance detector. DETAILED DESCRIPTION

[0042] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 11 , the present invention provides a technical solution:

[0044] A polymer material characterization device, comprising:

[0045] The frame 1 is provided with a base plate 2, which is fixedly connected to the frame 1 by means of bolts or the like, and a pull-down plate 3 is provided below the base plate 2, which is fixedly connected to the frame 1 by means of bolts or the like.

[0046] The transmission component includes a loading roller and a tensioning roller arranged on the base plate 2, and a power roller arranged on the pull-down plate 3 and located below the tensioning roller. The loading roller, the tensioning roller and the power roller all include a roller component and a fixed axis component arranged on the roller component. The roller component includes a rotating plate 20, a rotating sleeve 21, a moving rod 22, a limiting plate 23 and a clamping rod spring 24. The rotating plate 20 is arranged on the base plate 2 or the pull-down plate 3. The rotating plates 20 in the loading roller and the power roller are fixedly connected to the base plate 2 or the pull-down plate 3 by setting bolts or the like. The rotating plate 20 in the tensioning roller is movably connected to the base plate 2 by setting a slide groove or the like. The movable sleeve 21 is inserted on the rotating plate 20, and the rotating sleeve 21 is rotatably connected to the rotating plate 20 by means of a bearing or the like. The moving rod 22 is inserted in the rotating sleeve 21, and the moving rod 22 is movably connected to the rotating sleeve 21. A protrusion is provided on the moving rod 22, which can cooperate with the groove in the rotating sleeve 21. The limit plate 23 is provided on the moving rod 22, and the limit plate 23 is fixedly connected to the moving rod 22 by welding or one-piece molding or the like. The clamping rod spring 24 is sleeved on the moving rod 22, and one end of the clamping rod spring 24 is fixedly connected to the limit plate 23 by welding or the like, and the other end of the clamping rod spring 24 is fixedly connected to the rotating sleeve 21 by welding or the like.

[0047] The fixed axis component includes a rotating push rod 25, a fixing ring 26, a fixed axis hole 27, a fixed axis telescopic rod 28, a fixed axis block 29, a fixed axis rod 30, and a fixed axis spring 31. The rotating push rod 25 is arranged on the rotating sleeve 21, and the rotating push rod 25 is rotatably connected with the rotating sleeve 21 by setting a rotating shaft, etc. The fixing ring 26 is arranged on the rotating sleeve 21, and the fixing ring 26 is fixedly connected with the rotating sleeve 21 by welding, etc. The fixed axis hole 27 is opened on the fixing ring 26, the fixed axis telescopic rod 28 is arranged on the rotating plate 20, and the fixed axis telescopic rod 28 is fixedly connected with the rotating plate 20 by setting a metal plate and bolts, etc. The fixed axis block 29 is arranged on the fixed axis telescopic rod 28 The fixed axis block 29 is fixedly connected to the fixed axis telescopic rod 28 by setting bolts or the like, the fixed axis rod 30 is set in the fixed axis block 29, the fixed axis rod 30 is movably connected to the fixed axis block 29, the fixed axis spring 31 is set in the fixed axis block 29 and connected to the fixed axis rod 30, one end of the fixed axis spring 31 is fixedly connected to the fixed axis block 29 by welding or the like, and the other end of the fixed axis spring 31 is fixedly connected to the fixed axis rod 30 by welding or the like, the moving rod 22 is pushed to install the roller shaft 32 on the moving rod 22, so that the clamping rod spring 24 pushes the limit plate 23 to clamp the roller shaft 32, and the rotating resist rod 25 is moved to make the rotating resist rod 25 resist the limit plate 23 to fix the roller shaft 32.

[0048] The tension roller also includes a push plate 33 and a tension telescopic rod 34, and the power roller also includes a winding motor 35. The push plate 33 is arranged on the rotating plate 20, and the push plate 33 is fixedly connected to the rotating plate 20 by means of bolts, etc. The tension telescopic rod 34 is arranged on the frame 1, and the tension telescopic rod 34 is fixedly connected to the frame 1 by means of metal plates and bolts, etc. The push plate 33 is fixedly connected to the tension telescopic rod 34 by means of bolts, etc. The winding motor 35 is arranged on the rotating plate 20 and connected to the rotating sleeve 21, and the winding motor 35 The winding motor 35 is fixedly connected to the rotating sleeve 21 by means of a coupling, etc., and the winding motor 35 drives the roller 32 to rotate and wind the polymer material, and the polymer material on the loading roller is wound on the power roller through the tensioning roller. After the winding motor 35 stops, the fixed axis telescopic rod 28 fits the fixing ring 26, and the fixed axis rod 30 is inserted into the fixed axis hole 27 to fix the roller 32, and the tensioning telescopic rod 34 drives the corresponding roller 32 to move to tighten the polymer material.

[0049] The cutting assembly includes a cutting opening 4 opened on the base plate 2, a lower cutting mechanism arranged at the cutting opening 4, and an upper cutting mechanism arranged on the frame 1. The upper cutting mechanism includes a cutting knife component arranged on the frame 1 and a pressing component arranged on the cutting knife component. The lower cutting mechanism includes a lower mounting plate 5, a lower clamping telescopic rod 6, a lower cutting telescopic rod 7, an inner support rod 8, an outer support rod 9, a connecting plate 10, a cutting seat 11, a cutting groove 12, an outer push groove 13, an outer push block 14, a telescopic block 16, a telescopic spring 17, a slide rail 18, and an inclined sliding surface 19. The lower mounting plate 5 is arranged on the base plate 2 and is located at At the cutting opening 4, the lower mounting plate 5 is fixedly connected to the base plate 2 by setting bolts or the like, the lower clamp telescopic rod 6 is arranged on the lower mounting plate 5, the lower clamp telescopic rod 6 is fixedly connected to the lower mounting plate 5 by setting bolts or the like, the lower cutting telescopic rod 7 is arranged on the lower mounting plate 5, the lower cutting telescopic rod 7 is fixedly connected to the lower mounting plate 5 by setting bolts or the like, the inner support rod 8 is arranged on the lower clamp telescopic rod 6, the inner support rod 8 is fixedly connected to the lower clamp telescopic rod 6 by setting bolts or the like, the outer support rod 9 is sleeved on the inner support rod 8, the outer support rod 9 is movably connected to the inner support rod 8, and the connecting plate 10 is arranged on the outer support Rod 9 and connected with the lower cutting telescopic rod 7, the connecting plate 10 is fixedly connected with the outer support rod 9 by welding or the like, the connecting plate 10 is fixedly connected with the lower cutting telescopic rod 7 by setting bolts or the like, the cutting seat 11 is arranged on the outer support rod 9, the cutting seat 11 is fixedly connected with the outer support rod 9 by setting bolts or welding or the like, the cutting groove 12 and the outer push groove 13 are arranged on the cutting seat 11, the outer push block 14 is arranged in the outer push groove 13 and connected with the inner support rod 8, the outer push block 14 is fixedly connected with the inner support rod 8 by setting bolts or welding or the like, the telescopic groove 15 is arranged on the outer push block 14, the telescopic block 16 is arranged in the telescopic slot 15, the telescopic block 16 is movably connected to the side wall of the telescopic slot 15, the telescopic spring 17 is arranged in the side wall of the telescopic slot 15 and is connected to the telescopic block 16, one end of the telescopic spring 17 is fixedly connected to the side wall of the telescopic slot 15 by welding or the like, the other end of the telescopic spring 17 is fixedly connected to the telescopic block 16 by welding or the like, a slide rail 18 is arranged on the wall of the telescopic slot 15 and is connected to the telescopic block 16, the slide rail 18 is fixedly connected to the wall of the telescopic slot 15 by integral molding or the like, the slide rail 18 is movably connected to the telescopic block 16, and an inclined sliding surface 19 is provided on the telescopic block 16.

[0050] The cutting knife component includes a top plate 36, an upper pull-up telescopic rod 37, a cutting mounting plate 38, a cutting knife telescopic rod 39, a lower pressure plate 40 and a cutting knife 41. The top plate 36 is arranged on the frame 1, and the top plate 36 is fixedly connected to the frame 1 by means of bolts or the like. The upper pull-up telescopic rod 37 is arranged on the top plate 36, and the upper pull-up telescopic rod 37 is fixedly connected to the top plate 36 by means of bolts or the like. The cutting mounting plate 38 is arranged on the upper pull-up telescopic rod 37, and the cutting mounting plate 38 is fixedly connected to the upper pull-up telescopic rod 37 by means of bolts or the like. The cutting knife telescopic rod 39 is arranged on the cutting mounting plate 38, and the cutting knife telescopic rod 39 is fixedly connected to the cutting mounting plate 38 by means of bolts or the like. The lower pressure plate 40 is arranged on the cutting knife telescopic rod 39, and the lower pressure plate 40 is fixedly connected to the cutting knife telescopic rod 39 by means of bolts or the like. The cutting knife 41 is arranged on the lower pressure plate 40, and the cutting knife 41 is fixedly connected to the lower pressure plate 40 by means of welding or the like.

[0051] The pressing component includes a displacement sleeve 42, a pressing rod 43, a pressing upper plate 44 and a pressing spring 45. The displacement sleeve 42 is arranged on the lower pressing plate 40, and the displacement sleeve 42 is fixedly connected to the lower pressing plate 40 by welding or the like. The pressing rod 43 is arranged in the displacement sleeve 42, and the pressing rod 43 is movably connected to the displacement sleeve 42. The pressing upper plate 44 is arranged on the pressing rod 43, and the pressing upper plate 44 is fixedly connected to the pressing rod 43 by welding or the like. The pressing spring 45 is sleeved on the pressing rod 43, one end of the pressing spring 45 is fixedly connected to the pressing upper plate 44 by welding or the like, and the other end of the pressing spring 45 is fixedly connected to the lower pressing plate 40 by welding or the like.

[0052] The pulling assembly includes a transverse movement mechanism arranged on the frame 1 and a clamping mechanism arranged on the transverse movement mechanism. The transverse movement mechanism includes a mounting frame 46, a transverse movement module 47, a transverse movement plate 48 and a pressure sensor 49. The mounting frame 46 is arranged on the frame 1, and the mounting frame 46 is fixedly connected to the frame 1 by setting bolts or the like. The transverse movement module 47 is arranged on the mounting frame 46, and the transverse movement module 47 is fixedly connected to the mounting frame 46 by setting bolts or the like. The transverse movement module 47 can select the LES series embedded linear screw module of Guangdong Kate Precision. The transverse movement plate 48 is arranged on the transverse movement module 47, and the transverse movement plate 48 is fixedly connected to the transverse movement module 47 by setting bolts or the like. The pressure sensor 49 is arranged on the transverse movement plate 48, and the pressure sensor 49 is fixedly connected to the transverse movement plate 48 by setting bolts or the like. The pressure sensor 49 can select the S9M force sensor of Huodingge Bike Electronic Measurement Technology Co., Ltd.

[0053] The clamping mechanism includes an upper clamping shell 50, a lower clamping plate 51, a second slide rail 52, and a clamping telescopic rod 53. The upper clamping shell 50 is arranged on the pressure sensor 49, and the upper clamping shell 50 is fixedly connected to the pressure sensor 49 by setting bolts or the like. The lower clamping plate 51 is arranged in the upper clamping shell 50, and the lower clamping plate 51 is movably connected to the upper clamping shell 50. The second slide rail 52 is arranged in the upper clamping shell 50 and is connected to the lower clamping plate 51. The second slide rail 52 is fixedly connected to the upper clamping shell 50 by means of one-piece molding or the like, and the lower clamping plate 51 is movably connected to the second slide rail 52. The clamping telescopic rod 53 is arranged on the upper clamping shell 50 and is connected to the lower clamping plate 51. The clamping telescopic rod 53 is fixedly connected to the upper clamping shell 50 by means of bolts or the like, and the clamping telescopic rod 53 is fixedly connected to the lower clamping plate 51 by means of bolts or the like.

[0054] A transmittance detector 54 is also provided on the substrate 2. The transmittance detector 54 is fixedly connected to the substrate 2 by means of bolts or the like. The transmittance detector 54 is used to detect the transmittance of polymer materials. The transmittance detector 54 can use the LS183 optical transmittance measuring instrument of Linshang Technology. A control device such as a single-chip microcomputer can also be provided on the substrate 2. The single-chip microcomputer can use Intel's 80C51, so that the pressure sensor 49, the linear module, the transmittance detector 54 and each telescopic rod are connected to the single-chip microcomputer through data electrical signals.

[0055] Working principle: When in use, the moving rod 22 is pushed to install the roller shaft 32 on the moving rod 22, so that the clamp rod spring 24 pushes the limit plate 23 to clamp the roller shaft 32, and the rotating abutting rod 25 is moved to make the rotating abutting rod 25 abut against the limit plate 23 to fix the roller shaft 32; the winding motor 35 drives the roller shaft 32 to rotate and wind up the polymer material, so that the polymer material passes through the transmittance detector 54, and the transmittance detector 54 detects the transmittance of the polymer material. After the stop, the fixed axis telescopic rod 28 fits the fixing ring 26, so that the fixed axis rod 30 is inserted into the fixed axis hole 27, the roller shaft 32 is fixed, and the tightening telescopic rod 34 drives the corresponding roller shaft 32 to move to tighten the polymer material; the lower clamping telescopic rod 6 and the lower cutting telescopic rod 7 respectively drive the push-out block 14 and the cutting seat 11 to move upward, and the upper pulling telescopic rod 37 drives the cutting knife 41 and the pressing upper plate 44 to move downward, so that the cutting knife 41 is inserted into the cutting groove 12 to cut the polymer specimen and is pressed on The plate 44 and the push-out block 14 are clamped; the lower cutting telescopic rod 7 drives the cutting seat 11 to move downward, the lower clamping telescopic rod 6 drives the push-out block 14 to move upward and leave the push-out groove 13, the telescopic spring 17 pushes the telescopic block 16 to extend outward to support the polymer specimen, the cutting knife telescopic rod 39 drives the cutting knife 41 and presses the upper plate 44, so that the push-out block 14 and the push-out block 14 move upward synchronously, and when the pressing shift rod 43 contacts the cutting mounting plate 38, the pressing upper plate 44 and the push-out block 14 stop, so that the cutting knife The telescopic rod 39 drives the cutting knife 41 to continue to move upward until the cutting knife 41 is separated from the pressing upper plate 44; the transverse movement module 47 drives the upper clamping shell 50 to move to the telescopic block 16, so that the clamping telescopic rod 53 drives the lower clamping plate 51 to move upward, so that the lower clamping plate 51 slides along the inclined sliding surface 19 and pushes the telescopic block 16 to reset, so that the upper clamping shell 50 and the lower clamping plate 51 clamp the polymer specimen, so that the transverse movement module 47 pulls the specimen, and the pressure sensor 49 records the pressure data.

[0056] 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 polymer material characterization device, characterized in that: include: A frame, wherein a base plate is disposed on the frame, and a pull-down plate is disposed below the base plate; A conveying assembly, the conveying assembly comprising a loading roller and a tensioning roller arranged on the base plate, and a power roller arranged on the pull-down plate and located below the tensioning roller; A cutting assembly, the cutting assembly comprising a cutting opening opened on the substrate, a lower cutting mechanism arranged at the cutting opening, and an upper cutting mechanism arranged on the frame; The upper cutting mechanism comprises a cutting member arranged on the frame and a pressing member arranged on the cutting member; The lower cutting mechanism includes a lower mounting plate arranged on the base plate, a lower clamping telescopic rod and a lower cutting telescopic rod arranged on the lower mounting plate, an inner support rod arranged on the lower clamping telescopic rod, an outer support rod sleeved on the inner support rod, a connecting plate arranged on the outer support rod and connected to the lower cutting telescopic rod, a cutting seat arranged on the outer support rod, a cutting groove and an outer pushing groove provided on the cutting seat, an outer pushing block arranged in the outer pushing groove and connected to the inner support rod, a telescopic groove provided on the outer pushing block, a telescopic block arranged in the telescopic groove, a telescopic spring arranged in the side wall of the telescopic groove and connected to the telescopic block, a slide rail arranged on the wall of the telescopic groove and connected to the telescopic block, and an inclined sliding surface provided on the telescopic block; A pulling assembly, the pulling assembly comprising a transverse movement mechanism arranged on the frame and a clamping mechanism arranged on the transverse movement mechanism; The power roller is used to roll the polymer material on the loading roller through the substrate after the tightening roller is turned and then rolled onto the power roller. The lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, and at the same time, the cutting knife component and the pressing component move downward, so that the cutting knife component is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing component and the push-out block. The lower cutting telescopic rod drives the cutting seat to move downward, and the lower clamping telescopic rod drives the push-out block to leave the push-out groove, so that the push-out block and the pressing component move upward synchronously until the cutting knife component is separated from the pressing component. When the push-out block leaves the push-out groove, the telescopic spring pushes the telescopic block to extend outward to support the polymer specimen, and the transverse movement mechanism drives the clamping mechanism to move to the telescopic block, so that the clamping mechanism slides along the inclined sliding surface to push the telescopic block to reset, so that the clamping mechanism clamps the polymer specimen for a pulling test.

2. A polymer material characterization device according to claim 1, characterized in that: The loading roller, the tensioning roller and the power roller all include a roller component and a fixed axis component arranged on the roller component. The roller component includes a rotating plate arranged on the base plate or the pull-down plate, a rotating sleeve inserted on the rotating plate, a moving rod inserted in the rotating sleeve, a limiting plate arranged on the moving rod, and a clamping rod spring sleeved on the moving rod. The fixed axis component includes a rotating abutment arranged on the rotating sleeve, a fixing ring arranged on the rotating sleeve, a fixed axis hole opened on the fixing ring, a fixed axis telescopic rod arranged on the rotating plate, a fixed axis block arranged on the fixed axis telescopic rod, a fixed axis rod arranged in the fixed axis block, and a fixed axis spring arranged in the fixed axis block and connected to the fixed axis rod, pushing the moving rod to install the roller shaft on the moving rod, so that the clamping rod spring pushes the limiting plate to clamp the roller shaft, and rotating the rotating abutment makes the rotating abutment abut against the limiting plate to fix the roller shaft.

3. A polymer material characterization device according to claim 2, characterized in that: The tensioning roller also includes a push plate arranged on the rotating plate and a tensioning telescopic rod arranged on the frame. The power roller also includes a winding motor arranged on the rotating plate and connected to the rotating sleeve. The winding motor drives the roller to rotate and wind up the polymer material. After the winding motor stops, the fixed-axis telescopic rod fits the fixing ring, so that the fixed-axis rod is inserted into the fixed-axis hole to fix the roller. The tensioning telescopic rod drives the corresponding roller to move to tighten the polymer material.

4. A polymer material characterization device according to claim 3, characterized in that: The cutting knife component includes a top plate arranged on the frame, an upward pull-up telescopic rod arranged on the top plate, a cutting mounting plate arranged on the upward pull-up telescopic rod, a cutting knife telescopic rod arranged on the cutting mounting plate, a lower pressing plate arranged on the cutting knife telescopic rod, and a cutting knife arranged on the lower pressing plate.

5. A polymer material characterization device according to claim 4, characterized in that: The pressing component includes a displacement sleeve arranged on the lower pressing plate, a pressing rod arranged in the displacement sleeve, a pressing upper plate arranged on the pressing rod, and a pressing spring sleeved on the pressing rod.

6. A polymer material characterization device according to claim 5, characterized in that: The transverse movement mechanism includes a mounting frame arranged on the frame, a transverse movement module arranged on the mounting frame, a transverse movement plate arranged on the transverse movement module, and a pressure sensor arranged on the transverse movement plate.

7. A polymer material characterization device according to claim 6, characterized in that: The clamping mechanism includes an upper clamping shell arranged on the pressure sensor, a lower clamping plate arranged in the upper clamping shell, a second slide rail arranged in the upper clamping shell and connected to the lower clamping plate, and a clamping telescopic rod arranged on the upper clamping shell and connected to the lower clamping plate.

8. A polymer material characterization device according to claim 7, characterized in that: A light transmittance detector is also arranged on the substrate, and the light transmittance detector is used to detect the light transmittance of the polymer material.

9. A polymer material characterization device according to claim 8, characterized in that: When the lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, the upper pulling telescopic rod drives the cutting knife and the pressing upper plate to move downward, so that the cutting knife is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing upper plate and the push-out block. When the lower cutting telescopic rod drives the cutting seat to move downward, the lower clamping telescopic rod drives the push-out block to move upward and leaves the push-out groove, the cutting knife telescopic rod drives the cutting knife and the pressing upper plate, so that the push-out block and the pressing upper plate move upward synchronously. When the shift rod contacts the cutting mounting plate, the pressing upper plate and the pushing block stop, so that the cutting knife telescopic rod drives the cutting knife to continue to move upward until the cutting knife is separated from the pressing upper plate, and the transverse movement module drives the upper clamping shell to move to the telescopic block, so that the clamping telescopic rod drives the lower clamping plate to move upward, so that the lower clamping plate slides along the inclined sliding surface to push the telescopic block to reset, so that the clamping mechanism clamps the polymer specimen, the transverse movement module pulls the specimen, and the pressure sensor records pressure data.

10. A method for characterizing a polymer material, based on the polymer material characterization device according to any one of claims 1 to 9, characterized in that: include: S1: Push the moving rod to install the roller shaft on the moving rod, so that the clamp rod spring pushes the limit plate to clamp the roller shaft, and rotates the rotating abutment rod to make the rotating abutment rod abut against the limit plate to fix the roller shaft; S2: The winding motor drives the roller to rotate and wind up the polymer material, so that the polymer material passes through the transmittance detector, and the transmittance detector detects the transmittance of the polymer material; S3: After the winding motor stops, the fixed-axis telescopic rod is attached to the fixing ring, so that the fixed-axis rod is inserted into the fixed-axis hole to fix the roller shaft, and the tensioning telescopic rod drives the corresponding roller shaft to move to tighten the polymer material; S4: the lower clamping telescopic rod and the lower cutting telescopic rod respectively drive the push-out block and the cutting seat to move upward, and the upper pulling telescopic rod drives the cutting knife and the pressing upper plate to move downward, so that the cutting knife is inserted into the cutting groove to cut the polymer specimen and is clamped by the pressing upper plate and the push-out block; S5: the lower cutting telescopic rod drives the cutting seat to move downward, the lower clamping telescopic rod drives the push-out block to move upward and leave the push-out groove, the telescopic spring pushes the telescopic block to extend outward to support the polymer specimen, the cutting knife telescopic rod drives the cutting knife and the pressing upper plate, so that the push-out block and the pressing upper plate move upward synchronously, and when the pressing moving rod contacts the cutting mounting plate, the pressing upper plate and the push-out block stop, so that the cutting knife telescopic rod drives the cutting knife to continue to move upward until the cutting knife is separated from the pressing upper plate; S6: The lateral movement module drives the upper clamping shell to move to the telescopic block, so that the clamping telescopic rod drives the lower clamping plate to move up, so that the lower clamping plate slides along the inclined sliding surface to push the telescopic block to reset, so that the upper clamping shell and the lower clamping plate clamp the polymer specimen, so that the lateral movement module pulls the specimen, and the pressure sensor records pressure data; S7: Repeat steps 2-7, conduct several experiments, and obtain the average value of the data.

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