A thermoplastic elastomer hardness testing device

Abstract

This utility model relates to the field of hardness testing technology and discloses a thermoplastic elastomer hardness testing device, including a testing platform. A mounting plate is fixedly connected to one side of the upper surface of the testing platform, and a hardness tester is fixedly mounted on one side of the mounting plate. A groove is formed on one side of the testing platform, and a clamping assembly is arranged inside the groove. The clamping assembly includes a bidirectional stud, which is rotatably connected inside the groove. One end of the bidirectional stud is fixedly connected to a shaft, and one end of the shaft is fixedly connected to a handle. Two connecting blocks are threaded to the outside of the bidirectional stud. This utility model facilitates the adjustment of the position and height of the clamping plate to accommodate thermoplastic elastomer samples of different sizes, effectively reducing sample movement or deformation during the testing process, thereby improving the accuracy of the test results. At the same time, it facilitates the immediate recording of thermoplastic elastomer hardness data, reducing the possibility of data loss due to failure to record in a timely manner.

Description

Technical Field

[0001] This utility model relates to the field of hardness testing technology, and in particular to a thermoplastic elastomer hardness testing device. Background Technology

[0002] Thermoplastic elastomers (TPEs) are a type of elastomer that exhibits the elasticity of rubber at room temperature and the ability to be plasticized and molded at high temperatures. The structure of TPEs consists of different resin and rubber segments formed by chemical bonds. The resin segments form physical cross-linking points through interchain forces, while the rubber segments are highly elastic segments that contribute to elasticity. This unique phase structure allows TPEs to possess both the elasticity of rubber and the processing characteristics of plastics. During production, hardness testing can be used for quality control. By regularly testing the produced TPE samples, it can be ensured that the product's hardness value is within the specified range, thereby guaranteeing product quality and stability.

[0003] A search revealed Chinese patent CN220982996U, which discloses an automatic colloid hardness testing device. This device addresses the common industry practice of manually placing a product with cured adhesive into a manual hardness tester platform and manually pressing the indenter against the adhesive surface. Since the testing depth cannot be set, manual pushing can leave marks on the adhesive surface, and it cannot output real-time displacement and pressure values, resulting in poor testing accuracy and efficiency, thus failing to achieve automatic testing. Therefore, this device features a simple structure and convenient operation. An electric slide stage drives the probe downwards, and a sensing plate is connected to the tip of the probe. A laser displacement sensor detects the displacement of the sensing plate, effectively detecting the true hardness of the colloid and outputting real-time displacement and pressure data, improving testing accuracy and efficiency, and achieving automatic testing.

[0004] The aforementioned hardness testing device is convenient for automatic testing. However, when testing the hardness of processed block-shaped thermoplastic elastomers, since thermoplastic elastomers are processed into blocks of different sizes and heights according to different application requirements, it is usually necessary to limit and fix the object when performing hardness testing on these blocks. However, the hardness testing device is usually not convenient to adjust the height and position of the block to be clamped according to the size and height of the manufactured block. This can easily lead to improper clamping, which can cause the thermoplastic elastomer to have insufficient stability during the testing process, resulting in skew and displacement, and reducing the test accuracy. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a thermoplastic elastomer hardness testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thermoplastic elastomer hardness testing device, including a testing platform, an mounting plate fixedly connected to one side of the upper surface of the testing platform, a hardness tester fixedly mounted on one side of the mounting plate, a groove provided on one side of the testing platform, and a clamping component provided inside the groove.

[0007] The clamping assembly includes a bidirectional stud, which is rotatably connected inside the groove. One end of the bidirectional stud is fixedly connected to a shaft, and one end of the shaft is fixedly connected to a throttle. The external threads of the bidirectional stud are connected to two connecting blocks, and the upper surface of the connecting blocks is fixedly connected to an installation rod.

[0008] As a further description of the above technical solution:

[0009] The mounting rod has a groove inside, and a slider is slidably connected inside the groove. The upper surface of the mounting rod has multiple slots. A mounting shell is fixedly connected to one side of the slider. A threaded column is rotatably connected inside the mounting shell. A knob is fixedly connected to one end of the threaded column.

[0010] As a further description of the above technical solution:

[0011] The threaded column is externally threaded with a movable block, a clamping plate is fixedly connected to one side of the movable block, the movable block is slidably connected inside the mounting shell, a fixed shell is fixedly connected to the upper surface of the slider, and an insert rod is slidably connected to the upper surface of the fixed shell.

[0012] As a further description of the above technical solution:

[0013] A limiting plate is fixedly connected to the middle of the insertion rod, and a fastening spring is fixedly connected to the upper surface of the limiting plate. One end of the fastening spring is fixedly connected to the inner wall of the fixed shell. An installation groove is provided on the upper surface of the test platform. A writing component is provided inside the installation groove. The writing component includes a lead screw, which is rotatably connected inside the installation groove.

[0014] As a further description of the above technical solution:

[0015] A rotating rod is rotatably connected inside the mounting groove. The rotating rod is located on one side of the lead screw. A driven bevel gear is fixedly connected to one end of the lead screw, and a driving bevel gear is fixedly connected to the middle of the rotating rod. The driving bevel gear and the driven bevel gear are meshed together.

[0016] As a further description of the above technical solution:

[0017] A knob is fixedly connected to one end of the rotating rod, a support rod is hinged to one side of the inner wall of the mounting groove, a writing board is hinged to one end of the support rod, a mounting block is hinged to one side of the writing board, and the mounting block is threaded to the outside of the lead rod.

[0018] As a further description of the above technical solution:

[0019] A storage box is fixedly connected to one side of the test platform. The storage box contains a spring wire, and a writing pen is attached to one end of the spring wire.

[0020] This utility model has the following beneficial effects:

[0021] This invention, through the design of the clamping component, enhances the adjustability of the clamping component during the hardness testing device. This allows it to adapt to thermoplastic elastomer samples of different sizes, reducing sample movement or deformation during testing, thereby improving the accuracy of test results. It also facilitates flexible testing of various block shapes, enhancing the flexibility and applicability of the test, and ultimately improving the stability of clamping thermoplastic elastomer blocks.

[0022] This invention, through the inclusion of a writing component, enhances the hardness testing device by facilitating the timely recording of hardness data obtained from thermoplastic elastomer tests. This reduces the risk of data loss due to the failure to record the initial hardness data during subsequent tests, thereby improving the convenience of hardness testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the mounting rod structure proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the slider proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the mounting groove structure proposed in this utility model;

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 This is a schematic diagram of the mounting block structure proposed in this utility model.

[0029] Legend:

[0030] 1. Test stand; 2. Mounting plate; 3. Hardness tester; 4. Groove; 5. Double-ended stud; 6. Shaft; 7. Turning handle; 8. Connecting block; 9. Mounting rod; 10. Slide groove; 11. Slider; 12. Slot; 13. Mounting shell; 14. Threaded post; 15. Knob; 16. Moving block; 17. Clamping plate; 18. Fixed shell; 19. Insert rod; 20. Limiting plate; 21. Fastening spring; 22. Mounting groove; 23. Lead screw; 24. Driven bevel gear; 25. Rotating rod; 26. Driving bevel gear; 27. Knob; 28. Support rod; 29. ​​Writing board; 30. Mounting block; 31. Storage box; 32. Spring wire; 33. Writing pen. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] As attached Figure 1-6 As shown, one embodiment of this utility model is provided: a thermoplastic elastomer hardness testing device, including a test platform 1, a mounting plate 2 fixedly connected to one side of the upper surface of the test platform 1, a hardness tester 3 fixedly mounted on one side of the mounting plate 2, and a groove 4 opened on one side of the test platform 1, with a clamping component disposed inside the groove 4.

[0033] The clamping assembly includes a bidirectional stud 5, which is rotatably connected inside the groove 4. One end of the bidirectional stud 5 is fixedly connected to a shaft 6, and the other end of the shaft 6 is fixedly connected to a handle 7. The external threads of the bidirectional stud 5 are connected to two connecting blocks 8, and the upper surface of the connecting blocks 8 is fixedly connected to an mounting rod 9. The external threads of the bidirectional stud 5 are set in opposite directions. The handle 7 is used to rotate the bidirectional stud 5, and the connecting blocks 8 facilitate the movement of the mounting rod 9.

[0034] As attached Figure 2 As shown, the mounting rod 9 has a groove 10 inside, and a slider 11 is slidably connected inside the groove 10. The upper surface of the mounting rod 9 has multiple slots 12. A mounting shell 13 is fixedly connected to one side of the slider 11. A threaded post 14 is rotatably connected inside the mounting shell 13. A knob 15 is fixedly connected to one end of the threaded post 14. The groove 10 is used for the sliding of the slider 11, the slots 12 facilitate the flexible insertion of the rod 19, and the threaded post 14 facilitates the movement of the height of the moving block 16.

[0035] As attached Figure 3As shown, a movable block 16 is threadedly connected to the external thread of the threaded column 14. A clamping plate 17 is fixedly connected to one side of the movable block 16. The movable block 16 is slidably connected inside the mounting shell 13. A fixed shell 18 is fixedly connected to the upper surface of the slider 11. An insert rod 19 is slidably connected to the upper surface of the fixed shell 18. A limiting plate 20 is fixedly connected to the middle of the insert rod 19. A fastening spring 21 is fixedly connected to the upper surface of the limiting plate 20. One end of the fastening spring 21 is fixedly connected to the inner wall of the fixed shell 18. The clamping plate 17 facilitates the limiting clamping of one side of the block. The insert rod 19 facilitates the limiting of the slider 11 after it has moved. The fastening spring 21 facilitates the elastic pushing action of the limiting plate 20.

[0036] As attached Figure 5 As shown, the upper surface of the test platform 1 is provided with a mounting groove 22. A writing component is set inside the mounting groove 22. The writing component includes a lead screw 23, which is rotatably connected inside the mounting groove 22. A rotating rod 25 is rotatably connected inside the mounting groove 22. The rotating rod 25 is located on one side of the lead screw 23. One end of the lead screw 23 is fixedly connected to a driven bevel gear 24. The middle part of the rotating rod 25 is fixedly connected to a driving bevel gear 26. The driving bevel gear 26 and the driven bevel gear 24 are meshed. One end of the rotating rod 25 is fixedly connected to a knob 27. The lead screw 23 is used to drive the mounting block 30 to move. The connection between the driving bevel gear 26 and the driven bevel gear 24 facilitates the rotation of the knob 27.

[0037] As attached Figure 6 As shown, a support rod 28 is hinged to one side of the inner wall of the mounting groove 22, a writing board 29 is hinged to one end of the support rod 28, and a mounting block 30 is hinged to one side of the writing board 29. The mounting block 30 is threaded to the outside of the lead rod 23. The support rod 28 can support the writing board 29, and the mounting block 30 can help to lift or lower the writing board 29.

[0038] As attached Figure 5 As shown, a storage box 31 is fixedly connected to one side of the test platform 1. A spring wire 32 is installed inside the storage box 31, and a writing pen 33 is installed at one end of the spring wire 32. The spring wire 32 helps to prevent the writing pen 33 from being lost.

[0039] Working principle: In use, the thermoplastic elastomer block is first placed on the upper surface of the test platform 1, between the two mounting rods 9. Then, according to the size and height of the block, the position and height of the clamping plate 17 in the clamping assembly are adjusted. First, the insertion rod 19 is pulled. When the insertion rod 19 slides out of the corresponding slot 12, the clamping plate 17 is released from its limit. Then, the slider 11 is moved so that the slider 11 slides inside the slide groove 10, thereby causing the position of the clamping plate 17 to move. When the clamping plate 17 moves to the appropriate position, the pulled insertion rod 19 is released. Under the action of the fastening spring 21 pushing the limiting plate 20 and pushing the insertion rod 19, the insertion rod 19 will be pushed into the corresponding slot 12, limiting the clamping plate 17 and completing the position adjustment.

[0040] When adjusting the height of the clamping plate 17, turning the knob 15 causes the threaded column 14 to rotate. Under the action of the thread, the moving block 16 rises. When the moving block 16 slides inside the mounting shell 13, it causes the clamping plate 17 to rise, thus adjusting the height of the clamping plate 17. Then, turning the handle 7 causes the double-direction stud 5 to rotate. Under the action of the opposite direction thread on the outside of the double-direction stud 5, the two external connecting blocks 8 move closer to each other. Then, the clamping plate 17 is used to limit and fix the block.

[0041] When recording test data, the writing board 29 is first supported, and then the knob 27 is turned. When the knob 27 drives the rotating rod 25 to rotate, the rotating rod 25 drives the active bevel gear 26 to rotate. Through the meshing of the active bevel gear 26 and the driven bevel gear 24, the driven bevel gear 24 is driven to rotate, which in turn drives the lead screw 23 to rotate. This causes the lead screw 23 to move the mounting block 30. With the support of the support rod 28, the writing board 29 is supported. Then, the writing pen 33 is taken out from the storage box 31 for writing and data recording.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermoplastic elastomer hardness testing device, comprising a testing platform (1), characterized in that: A mounting plate (2) is fixedly connected to one side of the upper surface of the test bench (1), and a hardness tester (3) is fixedly installed on one side of the mounting plate (2). A groove (4) is opened on one side of the test bench (1), and a clamping assembly is provided inside the groove (4). The clamping assembly includes a bidirectional stud (5), which is rotatably connected inside the groove (4). A shaft (6) is fixedly connected to one end of the bidirectional stud (5), and a throttle (7) is fixedly connected to one end of the shaft (6). Two connecting blocks (8) are threaded to the outside of the bidirectional stud (5), and an installation rod (9) is fixedly connected to the upper surface of the connecting block (8).

2. The thermoplastic elastomer hardness testing device according to claim 1, characterized in that: The mounting rod (9) has a groove (10) inside, and a slider (11) is slidably connected inside the groove (10). The upper surface of the mounting rod (9) has multiple slots (12). A mounting shell (13) is fixedly connected to one side of the slider (11). A threaded column (14) is rotatably connected inside the mounting shell (13). A knob (15) is fixedly connected to one end of the threaded column (14).

3. The thermoplastic elastomer hardness testing device according to claim 2, characterized in that: The threaded column (14) is externally threaded with a movable block (16), and a clamping plate (17) is fixedly connected to one side of the movable block (16). The movable block (16) is slidably connected inside the mounting shell (13). A fixed shell (18) is fixedly connected to the upper surface of the slider (11), and a plug rod (19) is slidably connected to the upper surface of the fixed shell (18).

4. The thermoplastic elastomer hardness testing device according to claim 3, characterized in that: A limiting plate (20) is fixedly connected to the middle of the insertion rod (19). A fastening spring (21) is fixedly connected to the upper surface of the limiting plate (20). One end of the fastening spring (21) is fixedly connected to the inner wall of the fixed shell (18). An installation groove (22) is provided on the upper surface of the test platform (1). A writing component is provided inside the installation groove (22). The writing component includes a lead screw (23). The lead screw (23) is rotatably connected inside the installation groove (22).

5. The thermoplastic elastomer hardness testing device according to claim 4, characterized in that: The mounting groove (22) is rotatably connected to a rotating rod (25). The rotating rod (25) is located on one side of the lead screw (23). One end of the lead screw (23) is fixedly connected to a driven bevel gear (24). The middle part of the rotating rod (25) is fixedly connected to a driving bevel gear (26). The driving bevel gear (26) and the driven bevel gear (24) are meshed.

6. The thermoplastic elastomer hardness testing device according to claim 5, characterized in that: A knob (27) is fixedly connected to one end of the rotating rod (25). A support rod (28) is hinged to one side of the inner wall of the mounting groove (22). A writing board (29) is hinged to one end of the support rod (28). A mounting block (30) is hinged to one side of the writing board (29). The mounting block (30) is threaded to the outside of the lead screw (23).

7. The thermoplastic elastomer hardness testing device according to claim 1, characterized in that: A storage box (31) is fixedly connected to one side of the test platform (1). A spring wire (32) is provided inside the storage box (31), and a writing pen (33) is provided at one end of the spring wire (32).

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