Plastic product hardness detection device

Abstract

The utility model discloses a plastic product hardness detection device, which relates to the field of plastic product processing, and comprises a bottom plate, the top end of the bottom plate is fixedly connected with a mounting rack, the top of the mounting rack is fixedly connected with a mounting ring, the interior of the mounting ring is rotatably connected with a gear ring, the interior of the gear ring is fixedly connected with a mounting rod, and the outer side of the mounting rod is provided with a mounting block. The bottom end of the mounting block is provided with a hardness detection device, the top end of the mounting ring is fixedly connected with a connecting plate, the middle part of the connecting plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a driving gear, and the driving gear is in meshed connection with the gear ring. The rotating driving gear drives the gear ring to rotate in the mounting ring, the position of the mounting rod is changed, and then the positions of the mounting block and the hardness detection device are changed, so that the hardness detection device performs hardness testing on other positions of the plastic product, the plastic product does not need to be fixed again, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of plastic product processing, specifically to a device for testing the hardness of plastic products. Background Technology

[0002] Plastic products are a general term for household and industrial goods made primarily from plastic. This includes products manufactured using processes such as injection molding and thermoforming. After processing, plastic products typically undergo testing to ensure quality; hardness testing is one type of testing for plastic products.

[0003] Chinese Patent (Announcement No.: CN211179376U) discloses a hardness testing device for plastic products, including a mounting frame. The upper surface of the lower end of the mounting frame has evenly distributed support columns. The upper surface of each support column has a support base. The upper surface of the support base has a cylindrical groove in the middle. The upper surface of the support base has two slots communicating with the cylindrical groove. The lower end of the side of the cylindrical groove has a sliding groove communicating with the lower end of the slot. A base is movably engaged inside the cylindrical groove. The side of the base has a locking plate movably engaged with the slot. This hardness testing device for plastic products can fix plastic products of different shapes using the base with a positioning device, and the detachable base allows for quick replacement of plastic products, improving the efficiency of the hardness tester and thus increasing the testing speed. It is convenient to use. However, to ensure testing accuracy, multiple measurements need to be taken at various locations on the plastic product, and the average value is then calculated. But this device requires re-fixing the product before performing the hardness test, which is somewhat cumbersome.

[0004] To address the aforementioned issues, we have made improvements and proposed a device for testing the hardness of plastic products. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a plastic product hardness testing device, including a base plate, a lifting mechanism installed at the top center of the base plate, a platform installed at the top of the lifting mechanism, a mounting frame fixedly connected to the top of the base plate, a mounting ring fixedly connected to the top of the mounting frame and positioned above the platform, a toothed ring rotatably connected inside the mounting ring, a mounting rod fixedly connected inside the toothed ring, a mounting block installed on the outer side of the mounting rod and offset from the center of the toothed ring, a hardness testing device installed at the bottom end of the mounting block, a connecting plate fixedly connected to the top of the mounting ring, a second motor fixedly connected to the middle of the connecting plate, a drive gear fixedly connected to the output end of the second motor and meshing with the toothed ring.

[0007] As a preferred embodiment of this utility model, the top of the mounting block is threaded with a fixing bolt, and the bottom end of the fixing bolt abuts against the mounting rod.

[0008] As a preferred embodiment of this utility model, the lifting mechanism includes three threaded rods, which are arranged in a circular array at the top of the base plate. A movable block is threadedly connected to the outer side of each threaded rod, and a push rod is connected to the top of the movable block. The top of the push rod is hinged to the bottom of the platform.

[0009] As a preferred embodiment of this utility model, a first motor is fixedly connected to the middle of the bottom end of the base plate, a second bevel gear is fixedly connected to the output end of the first motor, and three first bevel gears are meshed with the outer side of the second bevel gear. The three first bevel gears are respectively fixedly connected to the ends of three threaded rods.

[0010] As a preferred embodiment of this utility model, the left and right sides of the base plate are fixedly connected with support legs, and the bottom ends of the support legs are equipped with friction pads.

[0011] As a preferred embodiment of this utility model, the mounting ring has a notch on its left side, and the drive gear is located at the notch.

[0012] The beneficial effects of this utility model are:

[0013] 1. In this utility model, the second motor drives the drive gear to rotate, and the rotating drive gear drives the gear ring to rotate inside the mounting ring, changing the position of the mounting rod, and thus changing the position of the mounting block and the hardness testing device. This allows the hardness testing device to perform hardness tests on other parts of the plastic product without the need to re-fix the plastic product, making it more convenient to use.

[0014] 2. In this utility model, the first motor drives the first bevel gear to rotate, and the rotating first bevel gear simultaneously drives three second bevel gears, which in turn causes three threaded rods to rotate. The rotating threaded rods cause the movable block to move along the threaded rods, changing the tilt angle of the push rod, which can adjust the height of the platform and facilitate the installation of plastic products onto the platform. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a bottom-view perspective view of this utility model;

[0019] In the diagram: 1. Base plate; 2. Mounting bracket; 3. Mounting ring; 4. Support leg; 5. Threaded rod; 6. Platform; 7. Mounting rod; 8. Mounting block; 9. Fixing bolt; 10. Connecting plate; 11. Movable block; 12. Push rod; 13. First bevel gear; 14. Second bevel gear; 15. First motor; 16. Second motor; 17. Drive gear; 18. Gear ring. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-3 As shown, a plastic product hardness testing device includes a base plate 1, a lifting mechanism installed at the top center of the base plate 1, a platform 6 installed at the top of the lifting mechanism, a mounting frame 2 fixedly connected to the top of the base plate 1, a mounting ring 3 fixedly connected to the top of the mounting frame 2, and the mounting ring 3 is positioned above the platform 6. A toothed ring 18 is rotatably connected inside the mounting ring 3, a mounting rod 7 is fixedly connected inside the toothed ring 18, a mounting block 8 is installed on the outside of the mounting rod 7, and the mounting block 8 is offset from the center of the toothed ring 18. A hardness testing device is installed at the bottom of the mounting block 8. The hardness testing device includes a hydraulic telescopic rod and a hard alloy test head. A connecting plate 10 is fixedly connected to the top of the mounting ring 3, a second motor 16 is fixedly connected to the middle of the connecting plate 10, and a drive gear 17 is fixedly connected to the output end of the second motor 16, and the drive gear 17 meshes with the toothed ring 18.

[0022] The plastic product is fixed on the platform 6. The hardness testing device works to test the hardness of the plastic product. After the measurement is completed at one position, the second motor 16 drives the drive gear 17 to rotate. The rotating drive gear 17 drives the gear ring 18 to rotate inside the mounting ring 3, changing the position of the mounting rod 7, and thus changing the position of the mounting block 8 and the hardness testing device. This allows the hardness testing device to test the hardness of other positions of the plastic product without having to re-fix the plastic product, making it more convenient to use.

[0023] Specifically, such as Figure 1 As shown, the top of the mounting block 8 is threaded with a fixing bolt 9, and the bottom end of the fixing bolt 9 abuts against the mounting rod 7. The mounting block 8 slides on the mounting rod 7, changing the position of the hardness testing device, which can expand the working range of the hardness testing device. The fixing bolt 9 abuts against the surface of the mounting rod 7, and the mounting block 8 is fixed by friction.

[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the lifting mechanism includes three threaded rods 5 arranged in a circular array at the top of the base plate 1. A movable block 11 is threadedly connected to the outer side of each threaded rod 5. A push rod 12 is connected to the top of the movable block 11, and the top of the push rod 12 is hinged to the bottom of the platform 6. A first motor 15 is fixedly connected to the middle of the bottom of the base plate 1. A second bevel gear 14 is fixedly connected to the output end of the first motor 15. Three first bevel gears 13 are meshed with the outer side of the second bevel gear 14. The three first bevel gears 13 are respectively fixedly connected to the ends of the three threaded rods 5. When the first motor 15 operates, it drives the first bevel gears 13 to rotate. The rotating first bevel gears 13 simultaneously drive the three second bevel gears 14, thereby causing the three threaded rods 5 to rotate. The rotating threaded rods 5 cause the movable block 11 to move along the threaded rods 5, changing the tilt angle of the push rod 12. This allows adjustment of the height of the platform 6, facilitating the installation of plastic products onto the platform 6.

[0025] Specifically, such as Figure 1 As shown, support legs 4 are fixedly connected to both the left and right sides of the base plate 1, and friction pads are installed at the bottom of the support legs 4. The support legs 4 suspend the base plate 1, giving the first motor 15 a certain installation space and facilitating the handling of the device.

[0026] Specifically, such as Figure 3 As shown, a notch is provided on the left side of the mounting ring 3, and the drive gear 17 is located at the notch. The notch is provided so that part of the toothed ring 18 is exposed, and the drive gear 17 meshes with the exposed part of the toothed ring 18.

[0027] Working principle: The plastic product is fixed on the platform 6. The first motor 15 drives the first bevel gear 13 to rotate. The rotating first bevel gear 13 simultaneously drives three second bevel gears 14, which in turn causes the three threaded rods 5 to rotate. The rotating threaded rods 5 cause the movable block 11 to move towards the center along the threaded rods 5, increasing the tilt angle of the push rod 12, thereby making the height of the platform 6 suitable. The hardness testing device then performs hardness testing on the plastic product. After measuring at one position, the second motor 16 drives the drive gear 17 to rotate. The rotating drive gear 17 drives the gear ring 18 to rotate inside the mounting ring 3, changing the position of the mounting rod 7, and thus changing the position of the mounting block 8 and the hardness testing device, allowing the hardness testing device to perform hardness testing on other positions of the plastic product.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A device for testing the hardness of plastic products, comprising a base plate (1), characterized in that, A lifting mechanism is installed at the top center of the base plate (1), and a platform (6) is installed at the top of the lifting mechanism. A mounting frame (2) is fixedly connected to the top of the base plate (1). A mounting ring (3) is fixedly connected to the top of the mounting frame (2), and the mounting ring (3) is positioned above the platform (6). A toothed ring (18) is rotatably connected inside the mounting ring (3). A mounting rod (7) is fixedly connected inside the toothed ring (18). A mounting block (8) is installed on the outside of the mounting rod (7), and the mounting block (8) is offset from the center of the toothed ring (18). A hardness testing device is installed at the bottom end of the mounting block (8). A connecting plate (10) is fixedly connected to the top of the mounting ring (3). A second motor (16) is fixedly connected to the middle of the connecting plate (10). A drive gear (17) is fixedly connected to the output end of the second motor (16), and the drive gear (17) meshes with the toothed ring (18).

2. The plastic product hardness testing device according to claim 1, characterized in that, The top of the mounting block (8) is threaded with a fixing bolt (9), and the bottom end of the fixing bolt (9) abuts against the mounting rod (7).

3. The plastic product hardness testing device according to claim 1, characterized in that, The lifting mechanism includes three threaded rods (5), which are arranged in a circular array at the top of the base plate (1). The outer side of each threaded rod (5) is threaded with a movable block (11), and the top of the movable block (11) is connected to a push rod (12). The top of the push rod (12) is hinged to the bottom of the platform (6).

4. The plastic product hardness testing device according to claim 1, characterized in that, A first motor (15) is fixedly connected to the middle of the bottom end of the base plate (1). A second bevel gear (14) is fixedly connected to the output end of the first motor (15). Three first bevel gears (13) are meshed on the outer side of the second bevel gear (14). The three first bevel gears (13) are respectively fixedly connected to the ends of three threaded rods (5).

5. The plastic product hardness testing device according to claim 1, characterized in that, The base plate (1) is fixedly connected to the left and right sides with support legs (4), and friction pads are installed at the bottom of the support legs (4).

6. The plastic product hardness testing device according to claim 1, characterized in that, The mounting ring (3) has a notch on its left side, and the drive gear (17) is located at the notch.

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