PVC hardness testing frame

Abstract

The utility model discloses a PVC hardness testing frame, which relates to the field of hardness detection and measurement tools, and comprises a conveyor belt, a moving assembly and a clamping assembly, the clamping assembly is arranged on the outer side of the conveyor belt, a transmission assembly is arranged on one side, close to the clamping assembly, of the conveyor belt, and a support is arranged on the outer side of the conveyor belt. A belt wheel assembly is arranged on the support, a moving assembly is arranged on the belt wheel assembly, a testing assembly is arranged on the moving assembly, the moving assembly comprises a moving plate and a moving block, the moving plate is arranged at the top of the support, the moving block is arranged on the inner side of the moving plate, a second motor is fixedly connected to the top of the moving block, and a first motor is fixedly connected to the top of the second motor. By arranging the moving assembly, starting the second motor, driving the gear to rotate by the second motor, and matching the gear with the rack, the moving block can be driven to transversely move along the sliding groove, so that different positions of the test sample can be tested, and the test precision can be improved.

Description

Technical Field

[0001] The utility model relates to the field of hardness detection and measurement tools, in particular to a PVC hardness testing frame. Background Art

[0002] The role of PVC hardness test is to evaluate the mechanical properties of PVC materials, especially its hardness and elasticity. Hardness refers to the ability of a material to resist scratches or indentations, and is usually measured with a hardness tester. PVC hardness test can help determine the performance of PVC materials in terms of service life, wear resistance, impact resistance, etc. PVC hardness test can be used to inspect the quality of raw materials, processing processes and final products. Through regular testing, the hardness changes of PVC materials can be monitored, problems can be discovered in time and corrective measures can be taken to ensure stable product quality. PVC hardness test can be used to compare the hardness of PVC materials provided by different suppliers and select the most suitable material for their own product applications. The hardness value can be used as a reference standard to help select the pros and cons of PVC materials. PVC hardness test can be used to evaluate the rationality of different product designs. By testing PVC materials of different hardness, it can be determined which hardness material is most suitable for the specific application scenarios of the product. Many industries and fields have specific standard requirements for the hardness of PVC materials, such as construction, medical, automotive, etc. PVC hardness test can be used to confirm whether the product meets these industry standards and prove its suitability for specific application scenarios.

[0003] The existing patent (publication number: CN214097010U) proposes a hardness test stand for PVC sample quality inspection. 1. By arranging a resistance-increasing component under the handle, the instantaneous force of loading the handle downward is dispersed, thereby reducing the damage to the hardness tester or the test bench caused by excessive force. 2. By arranging a fixed seat, and the base of the hardness test stand is clamped in the fixed seat, the movement of the hardness test stand during use is reduced.

[0004] In actual use, the hardness tester of the above-mentioned PVC hardness test stand is fixed on the support seat, so that the hardness tester can only test the same part of the test sample, which is not conducive to improving the test accuracy of the hardness test stand. Utility Model Content

[0005] The utility model provides a PVC hardness test stand, which solves the problem that a hardness tester can only test the same part of a test sample, which is not conducive to improving the test accuracy of the hardness test stand.

[0006] In order to solve the above technical problems, the utility model provides a PVC hardness test stand, comprising a conveyor belt, a moving assembly, and a clamping assembly. The outer side of the conveyor belt is provided with a clamping assembly, and a transmission assembly is provided on the side of the conveyor belt close to the clamping assembly. The outer side of the conveyor belt is provided with a bracket, and a pulley assembly is provided on the bracket. The pulley assembly is provided on the moving assembly, and the moving assembly is provided with a testing assembly.

[0007] The moving assembly includes a moving plate and a moving block, wherein the moving plate is arranged on the top of the bracket, the moving block is arranged on the inner side of the moving plate, the top of the moving block is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a gear, a rack is arranged on one side of the moving block close to the gear, and the gear is meshed with the rack;

[0008] The testing assembly includes an electric telescopic rod and a hardness tester. The electric telescopic rod is fixedly connected to the bottom of the moving block. The hardness tester is arranged at the bottom of the electric telescopic rod and cooperates with the gear and the rack. The moving block can drive the electric telescopic rod and the hardness tester to move on the inner side of the moving plate, so that different positions of the sample to be tested can be tested.

[0009] Preferably, a sliding groove is provided on one side of the movable plate close to the movable block, a sliding block is fixedly connected to one side of the movable block close to the sliding groove, and the movable plate and the movable block are slidably connected via the sliding groove and the sliding block.

[0010] The above technical solution is adopted: the sliding groove cooperates with the sliding block so that the moving block can slide smoothly on the inner side of the moving plate.

[0011] Preferably, the clamping assembly includes a clamp and two screw rods, the two screw rods are arranged on both sides of the conveyor belt, the clamp is rotatably connected to the top of the two screw rods, the side of the conveyor belt close to the two screw rods is fixedly connected with a fixed block two, the bottom of the conveyor belt close to the two screw rods is fixedly connected with a support plate, the bottom of the support plate is rotatably connected with a driving wheel two, and the fixed block two, the support plate, the two driving wheels and the two screw rods are threadedly connected.

[0012] The above technical solution is adopted: by threading the driving wheel 2 on the screw rod 2, rotating the driving wheel 2, so that the driving wheel 2 drives the screw rod 2 and the clamp to move downward, thereby clamping the sample to be tested on the conveyor belt, avoiding the sample from sliding during the detection process, and reducing the error caused by the test.

[0013] Preferably, the transmission assembly includes a rotating rod, a driven wheel 2, and a fixed block 3, wherein the fixed block 3 is fixedly connected to a side of the conveyor belt close to the driving wheel 2, the driven wheel 2 is rotatably connected to the fixed block 3, the rotating rod is fixedly connected to an end of the driven wheel 2 close to the driving wheel 2, and the driven wheel 2 is meshed with the driving wheel 2.

[0014] The above technical solution is adopted: by rotating the rotating rod, the rotating rod drives the driven wheel 2 and the driving wheel 2 to rotate, thereby driving the clamp to descend at the same time.

[0015] Preferably, the pulley assembly includes a driving wheel 1 and a driven wheel 1, the driving wheel 1 is arranged on one side of the top of the bracket, and the driven wheel 1 is arranged on the other side of the top of the bracket, a transmission belt is connected between the driving wheel 1 and the driven wheel 1, a screw rod 1 is fixedly connected to the driving wheel 1 and the driven wheel 1, a motor 1 is fixedly connected to the screw rod 1 close to the side of the driving wheel 1, the motor 1 is fixedly connected to the bracket, a fixed block 1 is fixedly connected to the bracket, and the transmission belt is threadedly connected to the fixed block 1 and the movable plate.

[0016] The above technical solution is adopted: by starting motor 1, the motor 1 drives the driving wheel 1 and the driven wheel 1 to rotate, drives the screw rod 1 to rotate, and thus the screw rod 1 drives the movable plate to move longitudinally.

[0017] Preferably, a sliding rod is fixedly connected to one side of the hardness tester close to the electric telescopic rod, an inner groove is provided on one end of the electric telescopic rod close to the sliding rod, the electric telescopic rod and the hardness tester are slidably connected through the sliding rod and the inner groove, and a spring is fixedly connected between the electric telescopic rod and the hardness tester on the outside of the sliding rod.

[0018] By adopting the above technical solution, the slide bar cooperates with the inner groove to reduce the force applied to the hardness tester when it contacts the sample to be tested, thereby preventing the hardness tester from being damaged due to excessive force.

[0019] Compared with the related art, the utility model has the following beneficial effects:

[0020] 1. Compared with the traditional PVC hardness test stand, the utility model sets a moving component, starts motor 2, and drives the gear to rotate. The gear cooperates with the rack to drive the moving block to move horizontally along the slide slot, so that different positions of the test sample can be tested, which can improve the test accuracy.

[0021] 2. In the utility model, by setting a clamping assembly and rotating the rotating rod, the rotating rod drives the driven wheel 2 and the driving wheel 2 to rotate, the driving wheel 2 drives the screw rod 2 to rotate downward, and the screw rod 2 drives the clamp to clamp the test sample, thereby preventing the test sample from sliding during the test and reducing the error generated during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a PVC hardness test stand;

[0023] Figure 2 It is a structural schematic diagram of a moving component of a PVC hardness test stand;

[0024] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0025] Figure 4 It is a structural schematic diagram of a pulley assembly of a PVC hardness test stand;

[0026] Figure 5 The figure is a schematic diagram of the structure of a test component of a PVC hardness test stand.

[0027] Numbers in the figure:

[0028] 1. Conveyor belt; 2. Bracket; 3. Pulley assembly; 31. Driving wheel 1; 32. Driven wheel 1; 33. Transmission belt; 34. Screw rod 1; 35. Motor 1; 36. Fixed block 1; 4. Moving assembly; 41. Moving plate; 42. Moving block; 43. Motor 2; 44. Gear; 45. Rack; 46. Slide; 47. Slider; 5. Test assembly; 51. Electric telescopic rod; 52. Hardness tester; 53. Slide; 54. Inner groove; 55. Spring; 6. Clamping assembly; 61. Clamp; 62. Screw rod 2; 63. Fixed block 2; 64. Support plate; 65. Driving wheel 2; 7. Transmission assembly; 71. Rotating rod; 72. Driven wheel 2; 73. Fixed block 3. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] like Figure 1-Figure 2 As shown, a PVC hardness test stand comprises a conveyor belt 1, a moving assembly 4, and a clamping assembly 6. The outer side of the conveyor belt 1 is provided with a clamping assembly 6, and a transmission assembly 7 is provided on the side of the conveyor belt 1 close to the clamping assembly 6. A bracket 2 is provided on the outer side of the conveyor belt 1, and a pulley assembly 3 is provided on the bracket 2. The moving assembly 4 is provided on the pulley assembly 3, and a testing assembly 5 is provided on the moving assembly 4.

[0032] The moving assembly 4 includes a moving plate 41 and a moving block 42. The moving plate 41 is arranged on the top of the bracket 2, and the moving block 42 is arranged on the inner side of the moving plate 41. The top of the moving block 42 is fixedly connected with a second motor 43, and the output end of the second motor 43 is fixedly connected with a gear 44. A rack 45 is arranged on one side of the moving block 42 close to the gear 44, and the gear 44 is meshed with the rack 45.

[0033] The test assembly 5 includes an electric telescopic rod 51 and a hardness tester 52. The electric telescopic rod 51 is fixedly connected to the bottom of the moving block 42, and the hardness tester 52 is arranged at the bottom of the electric telescopic rod 51. Through the cooperation of the gear 44 and the rack 45, the moving block 42 can drive the electric telescopic rod 51 and the hardness tester 52 to move on the inner side of the moving plate 41, so that different positions of the sample to be tested can be tested.

[0034] A sliding groove 46 is provided on one side of the movable plate 41 close to the movable block 42, and a slider 47 is fixedly connected to one side of the movable block 42 close to the sliding groove 46. The movable plate 41 and the movable block 42 are slidably connected via the sliding groove 46 and the slider 47. The sliding groove 46 and the slider 47 cooperate with each other so that the movable block 42 can slide smoothly inside the movable plate 41.

[0035] Embodiment 2

[0036] like Figure 3 As shown, the clamping assembly 6 includes a clamp 61 and a screw rod 62, the screw rod 62 is arranged on both sides of the conveyor belt 1, the clamp 61 is rotatably connected to the top of the screw rod 62, the conveyor belt 1 is fixedly connected with a fixed block 63 on one side close to the screw rod 62, the bottom of the conveyor belt 1 is fixedly connected with a support plate 64 on one side close to the screw rod 62, the bottom of the support plate 64 is rotatably connected with a driving wheel 65, the fixed block 63, the support plate 64, the driving wheel 65 are threadedly connected to the screw rod 62, the driving wheel 65 is threadedly connected to the screw rod 62, and the driving wheel 65 is rotated to make the driving wheel 65 drive the screw rod 62 and the clamp 61 to move downward, so as to clamp the sample to be tested on the conveyor belt 1, avoid sliding of the sample during the detection process, and reduce the error caused by the test.

[0037] The transmission assembly 7 includes a rotating rod 71, a driven wheel 2 72, and a fixed block 3 73. The fixed block 3 73 is fixedly connected to the side of the conveyor belt 1 close to the driving wheel 2 65. The driven wheel 2 72 is rotatably connected to the fixed block 3 73. The rotating rod 71 is fixedly connected to one end of the driven wheel 2 72 close to the driving wheel 2 65. The driven wheel 2 72 is meshed with the driving wheel 2 65. By rotating the rotating rod 71, the rotating rod 71 drives the driven wheel 2 72 and the driving wheel 2 65 to rotate, thereby driving the clamp 61 to descend at the same time.

[0038] The pulley assembly 3 includes a driving wheel 31 and a driven wheel 32, wherein the driving wheel 31 is arranged on one side of the top of the bracket 2, and the driven wheel 32 is arranged on the other side of the top of the bracket 2, and a transmission belt 33 is connected between the driving wheel 31 and the driven wheel 32, and a screw rod 34 is fixedly connected to each of the driving wheel 31 and the driven wheel 32, and a motor 35 is fixedly connected to the screw rod 34 close to the side of the driving wheel 31, and the motor 35 is fixedly connected to the bracket 2, and a fixed block 36 is fixedly connected to the bracket 2, and the transmission belt 33 is threadedly connected to the fixed block 36 and the moving plate 41, and by starting the motor 35, the motor 35 drives the driving wheel 31 and the driven wheel 32 to rotate, and drives the screw rod 34 to rotate, so that the screw rod 34 drives the moving plate 41 to move longitudinally.

[0039] A sliding rod 53 is fixedly connected to one side of the hardness tester 52 near the electric telescopic rod 51, and an inner groove 54 is provided on one end of the electric telescopic rod 51 near the sliding rod 53. The electric telescopic rod 51 and the hardness tester 52 are slidably connected through the sliding rod 53 and the inner groove 54. A spring 55 is fixedly connected between the electric telescopic rod 51 and the hardness tester 52 and located on the outer side of the sliding rod 53. The cooperation between the sliding rod 53 and the inner groove 54 can reduce the force applied to the hardness tester 52 when it contacts the sample to be tested, thereby preventing the hardness tester 52 from being damaged due to excessive force.

[0040] Working principle: Figure 1-Figure 5 As shown, first start the conveyor belt 1, so that the conveyor belt 1 conveys the sample to be tested to the bottom of the hardness tester 52, rotate the rotating rod 71, the rotating rod 71 drives the driven wheel 2 72 and the driving wheel 2 65 to rotate, the driving wheel 2 65 drives the screw rod 2 62 to rotate and move downward, the screw rod 2 62 drives the clamp 61 to clamp the sample, start the electric telescopic rod 51, the electric telescopic rod 51 drives the hardness tester 52 to move downward, so that the hardness tester 52 tests the sample, when the hardness tester 52 contacts the sample, the hardness tester 52 slides along the inner groove 54 through the sliding rod 53 and compresses the spring 55, thereby reducing the hardness tester 52 from being subjected to The instantaneous force, after the test is completed, lift the hardness tester 52, start the motor 2 43, the motor 2 43 drives the gear 44 to rotate, the gear 44 and the rack 45 cooperate to drive the moving block 42 to move horizontally along the slide groove 46, and test different positions, then start the motor 1 35, the motor 1 35 drives the driving wheel 1 31 and the screw rod 1 34 on one side to rotate, the driving wheel 1 31 drives the driven wheel 1 32 and the screw rod 1 34 on the other side to rotate through the transmission belt 33, so that the screw rod 1 34 drives the moving plate 41 to move longitudinally, and different positions in the longitudinal direction can be moved, further improving the accuracy of the test.

[0041] 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 PVC hardness test stand, characterized in that: The invention comprises a conveyor belt (1), a moving assembly (4), and a clamping assembly (6); the clamping assembly (6) is arranged on the outer side of the conveyor belt (1); a transmission assembly (7) is arranged on the side of the conveyor belt (1) close to the clamping assembly (6); a bracket (2) is arranged on the outer side of the conveyor belt (1); a pulley assembly (3) is arranged on the bracket (2); a moving assembly (4) is arranged on the pulley assembly (3); and a testing assembly (5) is arranged on the moving assembly (4); The moving assembly (4) comprises a moving plate (41) and a moving block (42), wherein the moving plate (41) is arranged on the top of the bracket (2), and the moving block (42) is arranged on the inner side of the moving plate (41); the top of the moving block (42) is fixedly connected to a second motor (43); the output end of the second motor (43) is fixedly connected to a gear (44); a rack (45) is arranged on one side of the moving block (42) close to the gear (44), and the gear (44) is meshed with the rack (45); The testing assembly (5) comprises an electric telescopic rod (51) and a hardness tester (52); the electric telescopic rod (51) is fixedly connected to the bottom of the moving block (42); and the hardness tester (52) is arranged at the bottom of the electric telescopic rod (51).

2. A PVC hardness test stand according to claim 1, characterized in that: A sliding groove (46) is provided on one side of the movable plate (41) close to the movable block (42); a sliding block (47) is fixedly connected to one side of the movable block (42) close to the sliding groove (46); and the movable plate (41) and the movable block (42) are slidably connected via the sliding groove (46) and the sliding block (47).

3. A PVC hardness test stand according to claim 1, characterized in that: The clamping assembly (6) comprises a clamp (61) and a second screw rod (62), wherein the second screw rod (62) is arranged on both sides of the conveyor belt (1), and the clamp (61) is rotatably connected to the top of the second screw rod (62). A second fixing block (63) is fixedly connected to the side of the conveyor belt (1) close to the second screw rod (62), and a support plate (64) is fixedly connected to the bottom of the conveyor belt (1) close to the second screw rod (62). A second driving wheel (65) is rotatably connected to the bottom of the support plate (64), and the second fixing block (63), the support plate (64), the second driving wheel (65) and the second screw rod (62) are threadedly connected.

4. A PVC hardness test stand according to claim 1, characterized in that: The transmission assembly (7) comprises a rotating rod (71), a driven wheel 2 (72), and a fixed block 3 (73); the fixed block 3 (73) is fixedly connected to a side of the conveyor belt (1) close to the driving wheel 2 (65); the driven wheel 2 (72) is rotatably connected to the fixed block 3 (73); the rotating rod (71) is fixedly connected to an end of the driven wheel 2 (72) close to the driving wheel 2 (65); the driven wheel 2 (72) is meshed with the driving wheel 2 (65).

5. A PVC hardness test stand according to claim 1, characterized in that: The pulley assembly (3) comprises a driving wheel (31) and a driven wheel (32), wherein the driving wheel (31) is arranged on one side of the top of the bracket (2), and the driven wheel (32) is arranged on the other side of the top of the bracket (2), a transmission belt (33) is connected between the driving wheel (31) and the driven wheel (32), a screw rod (34) is fixedly connected to each of the driving wheel (31) and the driven wheel (32), a motor (35) is fixedly connected to the screw rod (34) close to the side of the driving wheel (31), the motor (35) is fixedly connected to the bracket (2), a fixed block (36) is fixedly connected to the bracket (2), and the transmission belt (33) is threadedly connected to the fixed block (36) and the movable plate (41).

6. A PVC hardness test stand according to claim 5, characterized in that: A sliding rod (53) is fixedly connected to one side of the hardness tester (52) close to the electric telescopic rod (51); an inner groove (54) is provided on one end of the electric telescopic rod (51) close to the sliding rod (53); the electric telescopic rod (51) and the hardness tester (52) are slidably connected via the sliding rod (53) and the inner groove (54); and a spring (55) is fixedly connected between the electric telescopic rod (51) and the hardness tester (52) and located on the outer side of the sliding rod (53).

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