Injection molding material hardness analyzer

Abstract

The utility model relates to the field of injection molding material hardness detection, in particular to an injection molding material hardness analyzer which comprises a base, a mounting frame, a threaded column, a movable strip and a lower hemisphere, the mounting frame is arranged above the base, the threaded column is arranged in the mounting frame, the movable strip is inserted into one side of the threaded column, a bottom plate is fixed at the lower end of the movable strip, and the lower hemisphere is fixed on the bottom plate. A positioning plate is fixed to one side of the lower end of the moving strip, a lower hemisphere is arranged at the lower end of the threaded column, a through hole is formed in the surface of the bottom plate, and a collecting groove is formed in the upper end of the bottom plate. According to the device, the portable rapid injection molding material hardness detection function can be utilized, and the problems that an existing injection molding material hardness analyzer cannot be carried about due to the fact that the size is large, effective and rapid detection cannot be achieved when the hardness of an injection molding material needs to be detected in time in some specific areas, and engineering stagnation is caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of hardness testing of injection molding materials, and in particular to a hardness analyzer for injection molding materials. Background Technology

[0002] An injection molding material hardness analyzer is an instrument used to measure the hardness of injection molded products. This equipment typically determines the material's hardness by applying pressure to the test material and then measuring the indentation depth or diameter. This is very helpful for detecting, controlling, and adjusting the hardness of materials during the production process and helps ensure that the quality of the final product meets standard requirements.

[0003] A search revealed patent publication number CN209961622U, which discloses a precision injection molded part measuring device. The device includes a support plate, a support cylinder welded to the outer wall of the bottom end of the support plate, a rectangular notch on one side of the support cylinder, a horizontally arranged partition welded to the inner wall of the support cylinder, and an adjusting bolt screwed to the middle of the outer wall of the bottom end of the partition. A hardness tester is rotatably connected to the top of the adjusting bolt. An insertion hole is located in the middle of the outer wall of the top end of the support plate, and the testing rod of the hardness tester is inserted into the inner wall of the insertion hole. A tray is located in the middle of the outer wall of the top end of the support plate, and positioning pins arranged in a ring at equal intervals are screwed to the edge of the outer wall of the bottom end of the tray. Positioning holes arranged in a ring at equal intervals are also located on the outer wall of the top end of the support plate. This invention can adapt to injection molded parts of different sizes, expanding the applicability of the device. It is simple to operate, convenient for impact resistance testing, and facilitates the measurement of impact resistance data. The tray, combined with the hardness tester, facilitates hardness measurement, enriching the device's functionality.

[0004] While existing technologies can achieve certain results in testing the hardness of injection molded materials, they have drawbacks: existing injection molded material hardness analyzers are often too bulky to be portable, making it difficult to conduct timely and effective testing in specific areas where hardness testing is required, leading to project delays. In view of this, we have proposed an injection molded material hardness analyzer that solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a hardness analyzer for injection molding materials.

[0006] The technical solution of this utility model is as follows: A hardness analyzer for injection molding materials includes a base, a mounting frame, a threaded column, a moving strip, and a lower hemisphere. The mounting frame is provided above the base, and the threaded column is provided inside the mounting frame. A moving strip is inserted into one side of the threaded column. A base plate is fixed to the lower end of the moving strip, and a positioning plate is fixed to one side of the lower end of the moving strip. A lower hemisphere is provided at the lower end of the threaded column. A through hole is opened on the surface of the base plate, and a collection groove is provided at the upper end of the base plate.

[0007] When using this device, insert the collection tank containing the injection molding material to be tested between the positioning blocks at the top of the base. Then, manually turn the handle downwards. As the threaded column rotates, it drives the lower hemisphere to gradually move downwards until the bottom of the lower hemisphere is in contact with the upper surface of the injection molding material. At this time, the base plate at the lower end of the moving strip on one side of the lower hemisphere is also in contact with the upper surface of the injection molding material. Then, continue to manually turn the handle. The lower hemisphere can still move downwards and press a circular indentation into the surface of the material to be tested. The pressure sensor will display the pressure value between the lower and upper hemispheres, which is the magnitude of the downward force. However, the base plate remains in its original position. Thus, the bottom of the lower hemisphere and the upper hemisphere... A distance difference is created between the bottom plates, which is the depth of the circular recessed area. This depth can be measured using an infrared emitter and receiver, and then displayed on the screen. After the test, the handle is turned back, and the bottom plate is positioned at a certain height in the collection tank. A pinhole camera can then capture the size of the circular recessed area, which is displayed on the top of the screen. Thus, the pressure value, recess depth, and recessed area can be detected. These data can be used to calculate the hardness value of the injection molding material by referring to the Rockwell hardness test rules. This device is small, convenient, portable, and provides accurate measurement results, making it highly practical.

[0008] Preferably, a positioning block is fixed on the upper surface of the base plate, the positioning block is in contact with the outer surface of the collection tank, and the base plate and the mounting frame are fixedly connected by a bracket.

[0009] Preferably, a bearing is fixedly installed inside the mounting bracket, the threaded post is threadedly connected to the bearing, a handle is fixed to the upper end of the threaded post, and a protrusion is provided on one side of the upper end of the moving bar.

[0010] Preferably, a mounting ring is fixed to the lower end of the threaded post, an upper hemisphere is fixed to the lower end of the mounting ring, a pressure sensor is fixed to the lower end of the upper hemisphere, and a lower hemisphere is fixed to the lower end of the pressure sensor.

[0011] Preferably, the upper surface of the positioning plate is provided with infrared emitters arranged in a ring array, and the lower end of the mounting ring is provided with infrared receivers arranged in a ring array.

[0012] Preferably, a battery is fixed to the upper surface of the base plate, and a pinhole camera is embedded in the lower surface of the base plate.

[0013] Preferably, a mounting base is fixedly mounted on the upper end of the mounting bracket, and a display screen is fixedly mounted on the upper end of the mounting base.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model can utilize the Rockwell hardness test principle to specifically detect various indicators of the indentation area left when the lower hemisphere presses down on the injection molding material, and then use the existing Rockwell hardness test mathematical calculation formula to calculate the hardness of the injection molding material.

[0016] II. Based on the first beneficial effect, this device can use an infrared transmitter and an infrared receiver to detect the depth of the recessed area, and use a miniature camera to photograph the recessed area and measure the circular area of ​​the surface. The pressure sensor can accurately detect the pressure value of the lower hemisphere, and after sending these data to the control system, they are displayed intuitively on the display screen.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a rear view schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the base plate of this utility model;

[0021] Figure 4 This is a front view schematic diagram of the present invention;

[0022] Figure 5 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle.

[0023] Figure label:

[0024] 1. Base; 2. Bracket; 3. Mounting bracket; 4. Display screen; 5. Mounting base; 6. Moving bar; 7. Handle; 8. Threaded post; 9. Bearing; 10. Collection groove; 11. Positioning block; 12. Infrared transmitter; 13. Protrusion; 14. Base plate; 15. Pinhole camera; 16. Through hole; 17. Lower hemisphere; 18. Mounting ring; 19. Infrared receiver; 20. Positioning plate; 21. Pressure sensor; 22. Upper hemisphere; 23. Battery. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual proportions. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1-5 As shown, this embodiment is a hardness analyzer for injection molding materials, including a base 1, a mounting frame 3, a threaded column 8, a moving bar 6, and a lower hemisphere 17. The mounting frame 3 is provided above the base 1, and the threaded column 8 is provided inside the mounting frame 3. The moving bar 6 is inserted into one side of the threaded column 8. A base plate 14 is fixed to the lower end of the moving bar 6, and a positioning plate 20 is fixed to one side of the lower end of the moving bar 6. The lower hemisphere 17 is provided at the lower end of the threaded column 8. A through hole 16 is opened on the surface of the base plate 14, and a collection groove 10 is provided at the upper end of the base plate 14.

[0031] When using this device, the collection tank 10 containing the injection molding material to be tested is inserted between the positioning blocks 11 at the upper end of the base 1. Then, the handle 7 is manually turned downwards. As the threaded column 8 rotates, it drives the lower hemisphere 17 to gradually move downwards until the bottom of the lower hemisphere 17 is in contact with the upper surface of the injection molding material. At this time, the bottom plate 14 at the lower end of the moving strip 6 on one side of the lower hemisphere 17 is also in contact with the upper surface of the injection molding material. Then, the handle 7 is manually turned again. The lower hemisphere 17 can still move downwards and press a circular indentation into the surface of the material to be tested. The pressure sensor 21 will display the pressure value between the lower hemisphere 17 and the upper hemisphere 22, which is the magnitude of the downward force. However, the bottom plate 14 remains in its original position. A distance difference is created between the bottom of hemisphere 17 and the bottom of base plate 14. This distance difference is the depth of the circular recessed area. This depth can be measured using infrared emitter 12 and infrared receiver 19, and then displayed on display screen 4. After the test is completed, turn handle 7 so that base plate 14 is at a certain height in collection groove 10. Using pinhole camera 15, the size of the circular recessed area can be captured and displayed on the top of display screen 4. Thus, the pressure value, recess depth, and recessed area can be detected. These data can be used to calculate the hardness value of the injection molding material to be tested by referring to the rules of Rockwell hardness testing. This device is small and convenient, easy to carry, and provides accurate measurement results, making it highly practical.

[0032] Example 2

[0033] Please see Figures 1-5 As shown, this embodiment, based on embodiment 1, further includes: a positioning block 11 fixed on the upper surface of the base plate 14, the positioning block 11 fitting against the outer surface of the collection groove 10, the base plate 14 and the mounting frame 3 being fixedly connected by a bracket 2, the positioning block 11 being positioned so that it can be inserted into the collection groove 10, and the collection groove 10 can be filled with the injection molding material whose hardness needs to be tested.

[0034] The mounting bracket 3 has a bearing 9 fixedly installed inside. The threaded column 8 is threadedly connected to the bearing 9. The upper end of the threaded column 8 is fixed with a handle 7. The upper side of the moving bar 6 has a protrusion 13. The bearing 9 can ensure the stable rotation of the threaded column 8, so that it will not move horizontally, and ensure the stable generation of the lower recessed area. The protrusion 13 can be easily pulled manually to move the moving bar 6. The handle 7 can be manually rotated to drive the rotation of the threaded column 8.

[0035] A mounting ring 18 is fixed to the lower end of the threaded column 8. An upper hemisphere 22 is fixed to the lower end of the mounting ring 18. A pressure sensor 21 is fixed to the lower end of the upper hemisphere 22. A lower hemisphere 17 is fixed to the lower end of the pressure sensor 21. The lower hemisphere 17 moves downward when the handle 7 is turned, and then presses out a recessed area of ​​the injection molding material, and displays the pressure value on the upper end of the display screen 4.

[0036] The upper surface of the positioning plate 20 is provided with infrared emitters 12 arranged in a ring array, and the lower end of the mounting ring 18 is provided with infrared receivers 19 arranged in a ring array. The distance between the infrared emitters 12 and the infrared receivers 19 can be measured to reflect the depth of the recessed area.

[0037] A battery 23 is fixed on the upper surface of the base plate 14, and a pinhole camera 15 is embedded in the lower surface of the base plate 14. The pinhole camera 15 can capture images of the recessed area and display the diameter of the circular area on the surface. The battery 23 can provide power for the device, enabling the device to be used for portable purposes over a certain distance.

[0038] Mounting bracket 3 has a mounting base 5 fixedly mounted on its upper end, and a display screen 4 is fixedly mounted on the upper end of mounting base 5. The display screen 4 has a control assembly inside, which can display various detection values ​​inside the device and obtain the hardness of the injection molding material to be tested by using the Rockwell hardness conversion formula.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] 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 hardness analyzer for injection molded materials, comprising a base (1), a mounting bracket (3), a threaded column (8), a moving bar (6), and a lower hemisphere (17), characterized in that: The base (1) is provided with a mounting bracket (3) above it. The mounting bracket (3) is provided with a threaded post (8) inside. A movable strip (6) is inserted into one side of the threaded post (8). A base plate (14) is fixed to the lower end of the movable strip (6). A positioning plate (20) is fixed to one side of the lower end of the movable strip (6). A lower hemisphere (17) is provided at the lower end of the threaded post (8). A through hole (16) is opened on the surface of the base plate (14). A collection groove (10) is provided at the upper end of the base plate (14).

2. The injection molding material hardness analyzer according to claim 1, characterized in that: A positioning block (11) is fixed on the upper surface of the base plate (14). The positioning block (11) is in contact with the outer surface of the collection trough (10). The base plate (14) and the mounting frame (3) are fixedly connected by a bracket (2).

3. The injection molding material hardness analyzer according to claim 1, characterized in that: The mounting bracket (3) has a bearing (9) fixedly installed inside. The threaded column (8) is threadedly connected to the bearing (9). The upper end of the threaded column (8) has a handle (7) fixedly installed. The upper side of the moving bar (6) has a protrusion (13).

4. The injection molding material hardness analyzer according to claim 1, characterized in that: The lower end of the threaded post (8) is fixed with an installation ring (18), the lower end of the installation ring (18) is fixed with an upper hemisphere (22), the lower end of the upper hemisphere (22) is fixed with a pressure sensor (21), and the lower end of the pressure sensor (21) is fixed with a lower hemisphere (17).

5. The injection molding material hardness analyzer according to claim 4, characterized in that: The upper surface of the positioning plate (20) is provided with infrared emitters (12) arranged in a ring array, and the lower end of the mounting ring (18) is provided with infrared receivers (19) arranged in a ring array.

6. The injection molding material hardness analyzer according to claim 1, characterized in that: A battery (23) is fixed on the upper surface of the base plate (14), and a pinhole camera (15) is embedded in the lower surface of the base plate (14).

7. The injection molding material hardness analyzer according to claim 1, characterized in that: The mounting bracket (3) is fixedly mounted on the upper end of the mounting base (5), and the mounting base (5) is fixedly mounted on the upper end of the display screen (4).

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