Compression permanent deformation device for thermoplastic rubber material detection

Abstract

The utility model belongs to the field of rubber material compression set performance detection, particularly relates to a compression set device for thermoplastic rubber material detection, and aims to solve the problems that when an existing compression set device is used, a limiter needs to be manually added and screws need to be repeatedly tightened, so that certain working efficiency is reduced, and the cost is reduced. In order to solve the problems that in the prior art, due to precise meshing of a gear system, unnecessary manpower and resources are consumed, the utility model provides the following scheme that the device comprises an upper pressing plate and a lower pressing plate, a first middle pressing plate and a second middle pressing plate are arranged between the upper pressing plate and the lower pressing plate respectively, and the first middle pressing plate is located above the second middle pressing plate. According to the device, the distance between the pressing plates is slightly and accurately adjusted, so that compression tests under different pressure conditions can be simulated, the accuracy and the reliability of the tests are improved, meanwhile, the deformation amount of a thermoplastic rubber material can be directly and accurately measured by the soft measuring scale, and a scientific basis is provided for material performance evaluation.

Description

Technical Field

[0001] The utility model relates to the technical field of detecting the compression set performance of rubber materials, in particular to a compression set device for detecting thermoplastic rubber materials. Background Art

[0002] Thermoplastic rubber is a material between rubber and plastic, which combines the elasticity of rubber and the processing performance of plastic. At room temperature, it exhibits the elasticity of rubber and can be stretched, compressed and restored to its original state; while at high temperature, it can be plasticized and molded like plastic.

[0003] The compression set can reflect the elastic recovery performance of rubber materials, which is of great significance for many applications and directly affects the sealing performance and service life of rubber products. Therefore, it needs to be tested in actual production.

[0004] When the existing rubber compression set device is in use, it is necessary for people to manually add limiters and repeatedly tighten screws, resulting in a certain reduction in work efficiency and unnecessary consumption of manpower and resources.

[0005] For this reason, a compression set device for detecting thermoplastic rubber materials is now proposed. Content of the Utility Model

[0006] The purpose of the utility model is to solve the defect that in the prior art, it is necessary for people to manually add limiters and repeatedly tighten screws, resulting in a certain reduction in work efficiency and unnecessary consumption of manpower and resources, and to propose a compression set device for detecting thermoplastic rubber materials.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A compression set device for detecting thermoplastic rubber materials includes an upper pressing plate and a lower pressing plate. A first intermediate pressing plate and a second intermediate pressing plate are respectively arranged between the upper pressing plate and the lower pressing plate. The first intermediate pressing plate is located above the second intermediate pressing plate. The outer shapes of the upper pressing plate, the lower pressing plate, the first intermediate pressing plate and the second intermediate pressing plate are all circular.

[0009] A plurality of screws are installed at the bottom of the lower pressing plate. The heads of the screws are hexagonal. The plurality of screws respectively penetrate through the upper pressing plate, the first intermediate pressing plate and the second intermediate pressing plate. A gear hole and a plurality of gear grooves are respectively arranged on the upper surface of the upper pressing plate. The plurality of gear grooves are all communicated with the gear hole.

[0010] An active gear is installed inside the gear hole, and driven gears are installed inside the gear grooves. All the driven gears are meshed with the active gear and used to adjust the distances between the upper pressing plate, the lower pressing plate, the first intermediate pressing plate, and the second intermediate pressing plate. Thermoplastic rubber materials are respectively placed between adjacent plates of the upper pressing plate, the lower pressing plate, the first intermediate pressing plate, and the second intermediate pressing plate.

[0011] In a possible design, first connection rings are fixedly connected to the upper surfaces of the driven gears. The circumferences of the first connection rings are respectively rotatably connected to first fixing frames. All the first fixing frames are fixedly connected to the upper surface of the upper pressing plate. A second fixing frame is fixedly connected between all the first fixing frames. A second connection ring is rotatably connected inside the second fixing frame. The second connection ring is fixedly connected to the active gear. The first fixing frames are used to fixedly install the driven gears, and the second fixing frame is used to fixedly install the active gear.

[0012] In a possible design, a plurality of limiting blocks are respectively placed between adjacent plates of the upper pressing plate, the lower pressing plate, the first intermediate pressing plate, and the second intermediate pressing plate. The plurality of limiting blocks are respectively located on the circumferences of the screws. Through grooves are provided on one sides of the limiting blocks, and the grooves are matched with the corresponding screws.

[0013] In a possible design, the screws are respectively threadedly connected to the corresponding driven gears and used to drive the screws to rotate.

[0014] In a possible design, a through driving hole is provided on the upper surface of the active gear, and the driving hole is used to drive the active gear to rotate through a professional tool.

[0015] In a possible design, a plurality of limiting holes are provided at the bottom of the lower pressing plate. The hexagonal ends of the screws are respectively located inside the limiting holes and used to limit and fix the bottoms of the screws.

[0016] In a possible design, a partition plate is fixedly connected to the bottom of the upper pressing plate.

[0017] In a possible design, measuring tapes are respectively fixedly connected to the circumferences of the upper pressing plate, the first intermediate pressing plate, and the second intermediate pressing plate. The measuring tapes are all flexible tapes and used to detect the deformation amount of the thermoplastic rubber material.

[0018] In this application, during use, first, the thermoplastic rubber materials to be detected are respectively placed between adjacent pressing plates (i.e., between the upper pressing plate and the first intermediate pressing plate, between the first intermediate pressing plate and the second intermediate pressing plate, and between the second intermediate pressing plate and the lower pressing plate).

[0019] Insert a wrench into the driving hole of the driving gear and rotate the driving gear. Since all driven gears are meshed with the driving gear, rotating the driving gear will drive all driven gears to rotate synchronously, thereby compressing the thermoplastic rubber material.

[0020] A plurality of limit blocks are respectively placed between adjacent plates of the upper pressing plate, the lower pressing plate, the first intermediate pressing plate and the second intermediate pressing plate, and are located on the circumference of the screw, having a certain limiting effect.

[0021] During the compression process, by observing or reading the measuring scales on the circumferences of the pressing plates, the deformation amount of the thermoplastic rubber material can be recorded in real time.

[0022] After a certain period of compression, release the pressure by rotating the driving gear in the reverse direction, and observe and measure the permanent deformation of the thermoplastic rubber material.

[0023] After adopting the above structure, the disassembly and assembly process of the limiter can be omitted, and the rotation of the nut can be driven by the trigger gear to quickly assemble the device.

[0024] Beneficial effects:

[0025] In the present utility model, the compression permanent deformation device for detecting thermoplastic rubber materials realizes a small and precise adjustment of the distance between the pressing plates through the precise meshing of the gear system, so as to be able to simulate compression tests under different pressure conditions, improve the accuracy and reliability of the test. At the same time, the equipped soft measuring scale can directly and accurately measure the deformation amount of the thermoplastic rubber material, providing a scientific basis for material performance evaluation.

[0026] In the present utility model, the compression permanent deformation device for detecting thermoplastic rubber materials is applicable to the compression permanent deformation detection of a variety of thermoplastic rubber materials, and is not limited by the shape, size and thickness of the materials, having strong versatility and flexibility. Description of the drawings

[0027] Figure 1 It is a schematic side view structure diagram of a compression permanent deformation device for detecting thermoplastic rubber materials proposed by the present utility model;

[0028] Figure 2 It is a schematic front view structure diagram of a compression permanent deformation device for detecting thermoplastic rubber materials proposed by the present utility model;

[0029] Figure 3 It is a schematic upper pressing plate structure diagram of a compression permanent deformation device for detecting thermoplastic rubber materials proposed by the present utility model;

[0030] Figure 4Schematic diagram of the connection relationship between the upper pressure plate and the lower pressure plate of a compression set permanent deformation device for testing thermoplastic rubber materials proposed by the present utility model;

[0031] Figure 5 Schematic diagram of the bottom structure of the lower pressure plate of a compression set permanent deformation device for testing thermoplastic rubber materials proposed by the present utility model;

[0032] Figure 6 Schematic diagram of the limiting block structure of a compression set permanent deformation device for testing thermoplastic rubber materials proposed by the present utility model.

[0033] In the figure: 1. Upper pressure plate; 2. First intermediate pressure plate; 3. Second intermediate pressure plate; 4. Lower pressure plate; 5. Measuring scale; 6. First fixing frame; 7. Second fixing frame; 8. Groove; 9. Limiting block; 10. Partition board; 11. First connecting ring; 12. Second connecting ring; 13. Gear groove; 14. Gear hole; 15. Driving gear; 16. Driven gear; 17. Driving hole; 18. Screw; 19. Limiting hole. Specific implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0035] Embodiment 1

[0036] Refer to Figures 1-6 , a compression set permanent deformation device, comprising: an upper pressure plate 1, a lower pressure plate 4, a first intermediate pressure plate 2 and a second intermediate pressure plate 3;

[0037] The upper pressure plate 1 is of a circular structure, and a partition board 10 is fixedly connected to the bottom thereof for separating the part in contact with the first intermediate pressure plate 2 to prevent components such as the driving gear 15 from contacting the thermoplastic rubber material. A gear hole 14 and a plurality of uniformly distributed gear grooves 13 are provided on the upper surface of the upper pressure plate 1, and all the gear grooves 13 are communicated with the gear hole 14;

[0038] The lower pressure plate 4 is also of a circular structure, and a plurality of screws 18 with hexagonal heads are installed at the bottom thereof. These screws 18 penetrate through the upper pressure plate 1, the first intermediate pressure plate 2 and the second intermediate pressure plate 3. A plurality of limiting holes 19 are also provided at the bottom of the lower pressure plate 4 for limiting and fixing the hexagonal ends of the screws 18;

[0039] A plurality of limiting blocks 9 are respectively placed between adjacent plates of the upper pressure plate 1, the lower pressure plate 4, the first intermediate pressure plate 2 and the second intermediate pressure plate 3. The plurality of limiting blocks 9 are respectively located on the circumference of the screws 18. A through groove 8 is provided on one side of each limiting block 9, and the groove 8 cooperates with the corresponding screw 18 to have a certain limiting effect;

[0040] A driving gear 15 is installed in the gear hole 14, and driven gears 16 are installed in each gear groove 13. All the driven gears 16 are meshed with the driving gear 15. The rotation of the driving gear 15 drives all the driven gears 16 to rotate synchronously, thereby adjusting the distance between the pressing plates.

[0041] This application can be used in the field of detecting thermoplastic rubber materials, and can also be used in other fields applicable to this application.

[0042] Embodiment 2

[0043] Reference Figures 1-6 A compression set device for detecting thermoplastic rubber materials, comprising: an upper pressing plate 1, a lower pressing plate 4, a first intermediate pressing plate 2 and a second intermediate pressing plate 3;

[0044] The upper pressing plate 1 is of a circular structure, and a partition 10 is fixedly connected to the bottom thereof for separating the part in contact with the first intermediate pressing plate 2 to prevent components such as the driving gear 15 from contacting the thermoplastic rubber material. A gear hole 14 and a plurality of uniformly distributed gear grooves 13 are provided on the upper surface of the upper pressing plate 1, and all the gear grooves 13 are communicated with the gear hole 14;

[0045] The lower pressing plate 4 is also of a circular structure, and a plurality of screws 18 with hexagonal heads are installed at the bottom thereof. These screws 18 penetrate through the upper pressing plate 1, the first intermediate pressing plate 2 and the second intermediate pressing plate 3. A plurality of limiting holes 19 are further provided at the bottom of the lower pressing plate 4 for limiting and fixing the hexagonal ends of the screws 18;

[0046] A plurality of limiting blocks 9 are respectively placed between adjacent plates of the upper pressing plate 1, the lower pressing plate 4, the first intermediate pressing plate 2 and the second intermediate pressing plate 3. The plurality of limiting blocks 9 are respectively located on the circumference of the screws 18. A through groove 8 is provided on one side of each limiting block 9, and the groove 8 is matched with the corresponding screw 18, having a certain limiting effect;

[0047] A driving gear 15 is installed in the gear hole 14, and driven gears 16 are installed in each gear groove 13. All the driven gears 16 are meshed with the driving gear 15. The rotation of the driving gear 15 drives all the driven gears 16 to rotate synchronously, thereby adjusting the distance between the pressing plates;

[0048] A first connecting ring 11 is fixedly connected to the upper surface of each driven gear 16. These first connecting rings 11 are rotatably connected to the upper pressing plate 1 through a first fixing frame 6. A second fixing frame 7 is fixedly connected between the plurality of first fixing frames 6, and a second connecting ring 12 fixedly connected to the driving gear 15 is rotatably connected inside the second fixing frame 7;

[0049] The circumferences of the upper pressing plate 1, the first intermediate pressing plate 2 and the second intermediate pressing plate 3 are respectively fixedly connected with soft measuring rulers 5 for measuring the deformation amount of the thermoplastic rubber material.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A compression permanent deformation device for thermoplastic rubber material detection, characterized in that: include: An upper pressing plate (1) and a lower pressing plate (4), wherein a first intermediate pressing plate (2) and a second intermediate pressing plate (3) are respectively arranged between the upper pressing plate (1) and the lower pressing plate (4), wherein the first intermediate pressing plate (2) is located above the second intermediate pressing plate (3), and the upper pressing plate (1), the lower pressing plate (4), the first intermediate pressing plate (2) and the second intermediate pressing plate (3) are all circular in shape; A plurality of screws (18) are installed at the bottom of the lower pressing plate (4), and the heads of the screws (18) are hexagonal in shape. The plurality of screws (18) respectively penetrate the upper pressing plate (1), the first intermediate pressing plate (2) and the second intermediate pressing plate (3). The upper surface of the upper pressing plate (1) is respectively provided with a gear hole (14) and a plurality of gear grooves (13), and the plurality of gear grooves (13) are all connected to the gear hole (14); A driving gear (15) is installed in the gear hole (14), and a driven gear (16) is installed in each of the gear slots (13). A plurality of the driven gears (16) are meshed with the driving gear (15) and are used to adjust the spacing between the upper pressure plate (1), the lower pressure plate (4), the first intermediate pressure plate (2), and the second intermediate pressure plate (3). Thermoplastic rubber materials are placed between adjacent plates of the upper pressure plate (1), the lower pressure plate (4), the first intermediate pressure plate (2), and the second intermediate pressure plate (3).

2. A compression permanent deformation device for thermoplastic rubber material detection according to claim 1, characterized in that: The upper surface of each driven gear (16) is fixedly connected to a first connecting ring (11), and the circumference of each first connecting ring (11) is rotatably connected to a first fixing frame (6). A plurality of first fixing frames (6) are fixedly connected to the upper surface of the upper pressure plate (1), and a second fixing frame (7) is fixedly connected between the plurality of first fixing frames (6). The interior of the second fixing frame (7) is rotatably connected to a second connecting ring (12), and the second connecting ring (12) is fixedly connected to the driving gear (15). The first fixing frame (6) is used for fixing and installing the driven gear (16), and the second fixing frame (7) is used for fixing and installing the driving gear (15).

3. A compression permanent deformation device for thermoplastic rubber material detection according to claim 1, characterized in that: A plurality of limit blocks (9) are placed between adjacent plates of the upper pressure plate (1), the lower pressure plate (4), the first intermediate pressure plate (2), and the second intermediate pressure plate (3), and the plurality of limit blocks (9) are respectively located on the circumference of the screw (18). A through groove (8) is provided on one side of the limit block (9), and the groove (8) cooperates with the corresponding screw (18).

4. A compression permanent deformation device for thermoplastic rubber material detection according to claim 1, characterized in that: The screws (18) are respectively threadedly connected to the corresponding driven gears (16) to drive the screws (18) to rotate.

5. The compression permanent deformation device for thermoplastic rubber material detection according to claim 2, characterized in that: The upper surface of the driving gear (15) is provided with a penetrating driving hole (17).

6. The compression permanent deformation device for thermoplastic rubber material detection according to claim 1, characterized in that: The bottom of the lower pressing plate (4) is provided with a plurality of limiting holes (19), and the hexagonal ends of the screws (18) are respectively located in the limiting holes (19) for limiting and fixing the bottom of the screws (18).

7. The compression permanent deformation device for thermoplastic rubber material detection according to claim 1, characterized in that: A partition plate (10) is fixedly connected to the bottom of the upper pressing plate (1).

8. A compression permanent deformation device for detecting thermoplastic rubber materials according to claim 7, characterized in that: The circumferences of the upper pressing plate (1), the first intermediate pressing plate (2) and the second intermediate pressing plate (3) are respectively fixedly connected with measuring rulers (5), and the measuring rulers (5) are all soft rulers used to detect the deformation of thermoplastic rubber materials.

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