Plastic hardness detection calibration device

Abstract

The utility model relates to the technical field of plastic detection equipment discloses plastic hardness detection calibration equipment, including base, the top fixedly connected with the base of apron, the top fixedly connected with the apron of work table, the top fixedly connected with rubber board of work table, the top sliding connection of rubber board has two limit boards, and the similar side of multiple connecting short pole is equipped with drive assembly. In the utility model, every connecting block b is driven to two connecting short poles to move to both sides by drive assembly, makes connecting long pole to rotate with the positioning block fixed on the both sides of work table as the center, and connecting long pole rotation drives rotating rod to push to work table's direction and forces connecting block c together with limit board to move on rubber board, thereby realizes the effect that the equipment detection calibration accuracy is improved, and the influence that the detection calibration is not accurate caused by the plastic deviation when the equipment extrusion detection to plastic is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic testing equipment technology, and in particular to plastic hardness testing and calibration equipment. Background Technology

[0002] In the context of increasingly stringent quality control, plastics, as a key material widely used in numerous fields, require precision instruments specifically designed for measuring and calibrating the hardness values ​​of plastic materials, including hardness testing and calibration equipment. Accurate hardness testing is crucial for ensuring product quality during plastic production and processing. Currently, common plastic hardness testing and calibration equipment suffers from several problems in its use.

[0003] In existing technologies, the fixing devices of some plastic hardness testing and calibration equipment are difficult to adapt to plastic parts of different sizes, causing the samples to easily shift during the testing process and affecting the accuracy of the test results. Moreover, the indenters of some hardness testing equipment will wear after long-term use, resulting in uneven pressure applied to the sample, which also causes deviations in the test data. Therefore, a plastic hardness testing and calibration device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a plastic hardness testing and calibration device, which aims to improve the problem that some existing devices cannot be adapted to the inaccurate testing and calibration of plastic parts of different sizes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic hardness testing and calibration device includes a base, a pad fixedly connected to the top of the base, a worktable fixedly connected to the top of the pad, a rubber plate fixedly connected to the top of the worktable, two limiting plates slidably connected to the top of the rubber plate, a support disc fixedly connected to the inside of the top side of the worktable, a sliding assembly provided at the bottom of the support disc, a connecting block c fixedly connected to the outer, opposite side of each limiting plate, a rotating rod rotatably connected to the inside of the connecting block c, a connecting long rod rotatably connected to the outer side of the rotating rod away from the connecting block c, two connecting rods b fixedly connected to the adjacent sides of the two connecting long rods, a connecting rod a rotatably connected to the outer, adjacent sides of the two connecting rods b, two connecting short rods fixedly connected to the bottom of the connecting long rods, and a driving assembly provided on the adjacent sides of the plurality of connecting short rods.

[0007] As a further description of the above technical solution:

[0008] A support column is fixedly connected to the top of the base, a slide rail is fixedly connected to the top of the support column, a baffle plate is fixedly connected to the top of the slide rail, and a support rod is fixedly connected to the front of the slide rail.

[0009] As a further description of the above technical solution:

[0010] A support plate is fixedly connected to the outer side of the support rod away from the slide rail. An elastic component is provided inside the support plate. A positioning pin is slidably connected inside the support plate. A fixing column is slidably connected inside the support plate.

[0011] As a further description of the above technical solution:

[0012] The sliding assembly includes a positioning post, the top of which is fixedly connected to the bottom of the support disc. A sliding ring is slidably connected to the outside of the positioning post. Two connecting blocks a are fixedly connected to the outer sides of the sliding ring. The connecting rod a is rotatably connected to the inside of the connecting block a.

[0013] As a further description of the above technical solution:

[0014] The drive assembly includes two connecting blocks b, each of which is externally rotatably connected to the inside of the two connecting short rods. The bottom of one of the connecting blocks b is fixedly connected to an electric telescopic mechanism, and the bottom of the other connecting block b is fixedly connected to the output end of the electric telescopic mechanism.

[0015] As a further description of the above technical solution:

[0016] The elastic component includes a spring, the left side of which is fixedly connected to the inside of the support plate, the right side of which is fixedly connected to a locking block, the outside of which is slidably connected to the inside of the support plate, and the outside of which is slidably connected to the inside of the support plate.

[0017] As a further description of the above technical solution:

[0018] Two positioning blocks are fixedly connected to the outer side of the workbench, and the inner side of each positioning block is rotatably connected to the outside of the connecting rod.

[0019] As a further description of the above technical solution:

[0020] A fixing block is fixedly connected to the bottom front side of the positioning pin, and a detection device is fixedly connected inside the fixing block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the driving component drives each connecting block b to move two short connecting rods to both sides, causing the long connecting rod to rotate around the positioning blocks fixed on both sides of the worktable. Through the sliding connection, connecting rod a and connecting rod b are connected together to ensure that the long connecting rods on both sides of the worktable remain symmetrical with the worktable during rotation. The rotation of the long connecting rod drives the rotating rod to push towards the worktable, forcing the connecting block c and the limiting plate to move towards each other on the rubber plate. This enables the device to adapt to plastic parts of different sizes, reduces the impact of plastic offset during plastic extrusion testing on inaccurate testing calibration, and improves the accuracy of equipment testing calibration.

[0023] 2. In this invention, with the cooperation of the elastic component, the upward pulling of the fixed column compresses the locking block and moves it forward. At this time, the positioning pin slides downward from the inside of the support plate due to the disengagement of the locking block, and disengages from the equipment along with the detection device on the positioning pin. The positioning pin, after the detection device has been replaced, can be reset by pressing the locking block upward from its original position and moving it forward. This solves the problem of the detection device not being able to be quickly replaced due to wear during continuous operation, thus improving the accuracy and efficiency of equipment testing and calibration. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the plastic hardness testing and calibration device proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the workbench of the plastic hardness testing and calibration equipment proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the support plate of the plastic hardness testing and calibration device proposed in this utility model.

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Base; 2. Support column; 3. Slide rail; 4. Blocking plate; 5. Support rod; 6. Pad; 7. Workbench; 8. Rubber plate; 9. Limiting plate; 10. Support disc; 11. Sliding ring; 12. Positioning column; 13. Connecting block a; 14. Connecting rod a; 15. Connecting rod b; 16. Connecting long rod; 17. Positioning block; 18. Electric telescopic mechanism; 19. Connecting short rod; 20. Connecting block b; 21. Connecting block c; 22. Rotating rod; 23. Support plate; 24. Spring; 25. Locking block; 26. Fixed column; 27. Positioning pin; 28. Fixed block; 29. ​​Detection device. 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] Reference Figures 1 to 3 This utility model provides an embodiment of a plastic hardness testing and calibration device, including a base 1, which serves as the basic load-bearing component of the device. A pad 6 is fixedly connected to the top of the base 1 to protect the base 1. A worktable 7 is fixedly connected to the top of the pad 6 to provide a stable support platform for the sample. A rubber plate 8 is fixedly connected to the top of the worktable 7 to reduce impact and increase friction. Two limiting plates 9 are slidably connected to the top of the rubber plate 8 to position and limit the sample. A support disc 10 is fixedly connected inside the top side of the worktable 7 to serve as an intermediate load-bearing structure. A sliding component is provided at the bottom of the support disc 10.

[0033] The sliding assembly includes a positioning post 12, which positions the components by cooperating with a sliding ring 11. The top of the positioning post 12 is fixedly connected to the bottom of the support disc 10. The sliding ring 11 is slidably connected to the outside of the positioning post 12. The sliding function of the sliding ring 11 enables the position adjustment of the device. Two connecting blocks a13 are fixedly connected to the outer sides of the sliding ring 11. The connecting blocks a13 serve as connecting components. The outer side of the connecting rod a14 is rotatably connected to the inside of the connecting blocks a13. The connecting rod a14 serves to connect different structural units. A connecting block c21 is fixedly connected to the outer, opposite side of each limiting plate 9. The connecting block c21 is used to connect the rotation. The rod 22 is rotatably connected inside the connecting block c21. The rotating rod 22 can rotate around a specific axis. The outer side of the rotating rod 22 away from the connecting block c21 is rotatably connected to the connecting long rod 16. The connecting long rod 16 serves as the main force transmission and structural connection component. Two connecting rods b15 are fixedly connected to the adjacent sides of the two connecting long rods 16. The connecting rods b15 are used to connect the connecting long rods 16. The outer adjacent sides of the two connecting rods b15 are rotatably connected to the connecting rod a14. Two connecting short rods 19 are fixedly connected to the bottom of the connecting long rod 16. The connecting short rods 19 play a role in force transmission. A drive assembly is provided on the adjacent sides of the multiple connecting short rods 19.

[0034] The drive assembly includes two connecting blocks b20, which transmit the telescopic force of the electric telescopic mechanism 18 to the connecting short rod 19. The outside of each connecting block b20 is rotatably connected to the inside of the two connecting short rods 19. The bottom of one connecting block b20 is fixedly connected to the electric telescopic mechanism 18, which serves as the power source. The bottom of the other connecting block b20 is fixedly connected to the output end of the electric telescopic mechanism 18. Two positioning blocks 17 are fixedly connected to the outside of the worktable 7. The positioning blocks 17 are installed at specific positions on the equipment to fix the connecting long rod 16. The inside of each positioning block 17 is rotatably connected to the outside of the connecting long rod 16.

[0035] Reference Figure 4 and Figure 5 A support column 2 is fixedly connected to the top of the base 1. The support column 2 serves to connect and support the upper structure. A slide rail 3 is fixedly connected to the top of the support column 2. The slide rail 3 provides a guide track for the sliding parts. A baffle plate 4 is fixedly connected to the top of the slide rail 3. The baffle plate 4 prevents the slider from derailing. A support rod 5 is fixedly connected to the front of the slide rail 3. The support rod 5 connects to some equipment. A support plate 23 is fixedly connected to the outer side of the support rod 5 away from the slide rail 3. The support plate 23 provides an installation support surface for some parts. An elastic component is provided inside the support plate 23.

[0036] The elastic component includes a spring 24, which helps the component reset. The left side of the spring 24 is fixedly connected to the inside of the support plate 23, and the right side of the spring 24 is fixedly connected to a locking block 25. The outside of the spring 24 is slidably connected to the inside of the support plate 23, and the outside of the locking block 25 is slidably connected to the inside of the support plate 23. The locking block 25 ensures the positional stability of each component in the working state. The inside of the support plate 23 is slidably connected to a positioning pin 27, which is inserted into the positioning holes of other components. The inside of the support plate 23 is slidably connected to a fixing post 26, which, through cooperation with the locking block 25, enables the component to be detachably fixed. The bottom front side of the positioning pin 27 is fixedly connected to a fixing block 28, which fixes a detection device 29. The inside of the fixing block 28 is fixedly connected to the detection device 29, which is a device for detecting and calibrating the hardness of the plastic.

[0037] Working principle: First, the plastic to be tested is placed on the rubber plate 8 on the workbench 7. At this time, the electric telescopic mechanism 18 is started to push the connecting blocks b20 at both ends to move to both sides. Each connecting block b20 drives two connecting short rods 19 to move to both sides, so that the connecting long rod 16 rotates around the positioning blocks 17 fixed on both sides of the workbench 7. It slides up and down on the positioning column 12 under the support disk 10 through the sliding ring 11, which drives the connecting blocks a13 on both sides of the sliding ring 11 to slide up and down. The connecting blocks a13 and the connecting long rod 16 are rotatably connected through the connecting rods a14 and b15, so that the connecting long rods 16 on both sides of the workbench 7 always remain symmetrical with the workbench 7 when rotating. The rotation of the connecting long rod 16 drives the rotating rod 22 to push towards the workbench 7, forcing the connecting block c21 and the limiting plate 9 to move towards each other on the rubber plate 8. This reduces the impact of plastic displacement during plastic extrusion testing on the inaccurate testing calibration and improves the accuracy of equipment testing calibration.

[0038] The testing equipment is supported by a support column 2 on the base 1. The height of the testing equipment can be adjusted up and down by a slide rail 3. A baffle plate 4 prevents the slider on the slide rail 3 from derailing. The testing equipment is connected to the slide rail 3 by a support rod 5. When the testing device 29 needs to be replaced, the fixing column 26 can be pulled upward to force the locking block 25 to be squeezed and moved forward. At this time, the positioning pin 27 slides downward from the inside of the support plate 23 due to the removal of the locking block 25, and the testing device 29 on the positioning pin 27 is removed from the equipment. After the testing device 29 is replaced, the positioning pin 27 is pushed upward from its original position to move the locking block 25 forward, so that the positioning pin 27 is reset. The locking block 25 is then reset under the action of the spring 24. This solves the problem that the testing device 29 cannot be quickly replaced due to wear during continuous operation, and improves the accuracy and efficiency of equipment testing and calibration.

[0039] 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 plastic hardness testing and calibration device, comprising a base (1), characterized in that: A pad (6) is fixedly connected to the top of the base (1), a workbench (7) is fixedly connected to the top of the pad (6), a rubber plate (8) is fixedly connected to the top of the workbench (7), two limiting plates (9) are slidably connected to the top of the rubber plate (8), a support disc (10) is fixedly connected to the inside of the top side of the workbench (7), a sliding assembly is provided at the bottom of the support disc (10), and a connecting block c (21) is fixedly connected to the outer, opposite side of each limiting plate (9). 1) is internally rotatably connected to a rotating rod (22), and a connecting long rod (16) is rotatably connected to the outer side of the rotating rod (22) away from the connecting block c (21). Two connecting rods b (15) are fixedly connected to the adjacent side of the two connecting long rods (16). A connecting rod a (14) is rotatably connected to the outer adjacent side of the two connecting rods b (15). Two connecting short rods (19) are fixedly connected to the bottom of the connecting long rod (16). A driving assembly is provided on the adjacent side of the multiple connecting short rods (19).

2. The plastic hardness testing and calibration equipment according to claim 1, characterized in that: A support column (2) is fixedly connected to the top of the base (1), a slide rail (3) is fixedly connected to the top of the support column (2), a baffle plate (4) is fixedly connected to the top of the slide rail (3), and a support rod (5) is fixedly connected to the front of the slide rail (3).

3. The plastic hardness testing and calibration equipment according to claim 2, characterized in that: A support plate (23) is fixedly connected to the side of the support rod (5) away from the slide rail (3). The support plate (23) is provided with an elastic component inside. A positioning pin (27) is slidably connected inside the support plate (23). A fixing column (26) is slidably connected inside the support plate (23).

4. The plastic hardness testing and calibration equipment according to claim 1, characterized in that: The sliding assembly includes a positioning post (12), the top of which is fixedly connected to the bottom of the support disc (10). A sliding ring (11) is slidably connected to the outside of the positioning post (12). Two connecting blocks a (13) are fixedly connected to the outer sides of the sliding ring (11). The connecting rod a (14) is rotatably connected to the inside of the connecting block a (13).

5. The plastic hardness testing and calibration equipment according to claim 1, characterized in that: The drive assembly includes two connecting blocks b (20), each of which is externally rotatably connected to the inside of the two connecting short rods (19). The bottom of one of the connecting blocks b (20) is fixedly connected to an electric telescopic mechanism (18), and the bottom of the other connecting block b (20) is fixedly connected to the output end of the electric telescopic mechanism (18).

6. The plastic hardness testing and calibration equipment according to claim 3, characterized in that: The elastic component includes a spring (24), the left side of which is fixedly connected to the inside of the support plate (23), and the right side of which is fixedly connected to a locking block (25). The outside of the spring (24) is slidably connected to the inside of the support plate (23), and the outside of the locking block (25) is slidably connected to the inside of the support plate (23).

7. The plastic hardness testing and calibration equipment according to claim 1, characterized in that: Two positioning blocks (17) are fixedly connected to the outer side of the workbench (7), and the inner side of each positioning block (17) is rotatably connected to the outside of the connecting rod (16).

8. The plastic hardness testing and calibration equipment according to claim 3, characterized in that: A fixing block (28) is fixedly connected to the bottom front side of the positioning pin (27), and a detection device (29) is fixedly connected inside the fixing block (28).

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