CN211402003U - Novel plastic product hardness test device - Google Patents
Novel plastic product hardness test device Download PDFInfo
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- CN211402003U CN211402003U CN201922207441.XU CN201922207441U CN211402003U CN 211402003 U CN211402003 U CN 211402003U CN 201922207441 U CN201922207441 U CN 201922207441U CN 211402003 U CN211402003 U CN 211402003U
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Abstract
The utility model provides a novel plastic hardness testing device, this technical scheme have at first adopted a brand-new detection principle, have designed the hardness appearance of particular structure based on this principle. Specifically speaking, the utility model discloses a material is examined in impressing to electronic jar drive steel ball, utilizes the average resistance that the in-process steel ball received to characterize and examine material hardness. The utility model arranges the pressure sensor on the pressing mechanism, thereby reading the upper pressure of the steel ball in real time; meanwhile, the utility model discloses set up the fore-set structure in steel ball side, when the steel ball was impressed completely and examined the material, the fore-set triggered and touched the button, stopped the pressure sensor value to accurate control the value node. The utility model abandons the principle of using the cross section area and the extension of the pressure head to reflect the hardness of the material to be detected, adopts single variable to represent the hardness, and has smaller system error; meanwhile, the detection can be completed only through the pressing-in action, so that the device is relatively simple in structure.
Description
Technical Field
The utility model relates to a plastic quality control technical field, concretely relates to novel plastic hardness testing device.
Background
Plastics are a general name of a large class of materials, mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements, and the finished product is a solid and is a molten liquid in the manufacturing process, so that the plastics can be mechanically heated to be molten, pressurized to flow and cooled to be solidified to form various shapes, and the plastics have wide application in the fields of household appliances, automobiles, mobile phones, medical appliances and the like.
Because the components of the plastic product are various, the properties presented by the plastic product are wide, and in the performance evaluation of the plastic product, the hardness is an important index for representing the mechanical strength and the external force resistance of the plastic product. The hardness tester is a special device for testing the hardness of materials, and because the characterization methods of the hardness are very diverse, the testing principle and the testing method of the hardness tester are different according to different characterization principles, wherein characterization systems which are widely applied comprise Rockwell hardness, Brinell hardness, Vickers hardness, Richch hardness and the like. In the hardness test of plastic products, shore hardness is generally adopted for characterization, and a shore durometer is adopted for detection. The principle is that a conical steel pressure head is adopted and is vertically pressed into the surface of a sample under the action of test force, when the surface of a foot press is completely attached to the surface of the sample, a certain extending length is formed between the tip end surface of a pressure pin and the surface of the foot press, the Shore hardness is represented according to the length value, and the higher the length value is, the lower the Shore hardness is, and the higher the Shore hardness is. The measuring principle is greatly influenced by the shape of the pressure head, the error of the bottom area of the pressure head can cause obvious deviation of a detection result, the error of the slightly extending length of the pressure head measured by adopting the displacement sensor is relatively large, and in addition, the method needs a certain amount of data calculation, so the structure is relatively complex.
Disclosure of Invention
The utility model discloses aim at to prior art's technical defect, provide a novel plastic product hardness test device to the relative complicated technical problem of detection principle of shore durometer among the solution prior art.
The to-be-solved technical problem of the present invention is to provide a new detecting device for detecting the hardness of plastic products.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
a novel plastic product hardness testing device comprises a base, a supporting frame, a top box, a pressure sensor, a pressure rod, a steel ball, a blind hole, an annular table, a touch button, a top column, a protruding disc and a pressure bearing table, wherein the supporting frame is fixedly connected to the upper end of the base, the top box is fixedly connected to the upper end of the supporting frame, a longitudinal electric cylinder is connected in the top box, the pressure sensor is fixedly connected to the lower end of the electric cylinder, the pressure rod is fixedly connected to the lower end of the pressure sensor, the steel ball is fixedly connected to the lower end of the pressure rod, the longitudinal blind hole is formed in the lower end of the pressure rod, the annular table is arranged in the blind hole, the touch button is connected to the top end of the blind hole, the top column is inserted in the blind hole, the protruding disc is fixedly connected to the top end of the top column, the protruding disc is positioned between the top end of the blind hole and, the pressure bearing table is positioned below the steel ball.
Preferably, the steel ball detection device further comprises a detection material, wherein the detection material is placed at the upper end of the pressure bearing table, and the thickness of the detection material is not less than 3 times of the diameter of the steel ball.
Preferably, the electric cylinder further comprises a foot switch and a cable, wherein the foot switch is located on the ground, and the foot switch is electrically connected with the electric cylinder through the cable.
Preferably, the distance between the top end of the blind hole and the annular table is equal to the diameter of the steel ball.
Preferably, there are 2 top columns, and the 2 top columns are respectively positioned at two sides of the steel ball.
In the technical scheme, the base is used for bearing the support frame and the pressure bearing platform; the supporting frame is used for bearing the top box; the top box is used for bearing the electric cylinder, necessary circuits can be arranged in the top box, and a display can be arranged on the surface of the top box to display the reading of the pressure sensor; the electric cylinder moving longitudinally is used for pressing the pressure sensor; the pressure sensor drives the pressure rod and the steel ball to press downwards when pressing downwards, and the pressure sensor is pressed to generate reading after the steel ball is contacted with a detected material; the pressure lever is used for bearing the steel ball and is also used for arranging a blind hole, and meanwhile, the pressure lever is also used for transmitting the pressure upwards to the pressure sensor so as to generate a reading; the steel ball is pressed into the material to be detected, and the generated pressure is used for reflecting the hardness of the material to be detected in the process; the blind hole is used for arranging a touch button at the innermost end of the blind hole and inserting the top column into the blind hole; the annular table is used for supporting the protruding disc on the ejection column, so that the lowest position of the ejection column is limited, and the ejection column is prevented from falling off from the blind hole.
The length of the ejection column and the distance between the top end of the blind hole and the annular table are used for ensuring that when the ejection column is pressed to the top end of the blind hole and triggers the touch button, the lower end face of the ejection column and the top end of the steel ball are positioned on the same horizontal plane so as to ensure that when the steel ball is completely pressed into the material to be detected, the ejection column triggers the touch button; the touch button is a control button for stopping the value taking of the pressure sensor, when the steel ball is pressed downwards into the material to be detected, the ejection column jacks upwards the material to be detected, and when the steel ball is completely pressed into the material to be detected, the ejection column triggers the touch button, and the pressure sensor stops the value taking; the pressure bearing table is used for bearing the material to be detected; the material to be detected is a plastic product, the material to be detected is preferably plate-shaped, and the thickness of the material to be detected is not less than 3 times of the diameter of the steel ball, so that the condition that the thickness is too thin and the pressure cannot be fed back really is avoided; in addition, can set up foot switch and cable for convenient electronic jar of control opens and stops.
The utility model discloses a detection principle as follows: the electric cylinder is utilized to drive the steel ball to press down, and the pressure sensor is arranged between the electric cylinder and the steel ball, so that the material detection resistance (upper pressure) of the steel ball can be read by the pressure sensor in the pressing down process. When the steel ball is in contact with a material to be detected (when the pressure sensor is provided with a reading), a value is set, and when the steel ball is completely pressed into the material to be detected, the ejection column triggers a touch button, and the pressure sensor stops taking the value; the pressure sensor readings during this process are then averaged and the average pressure is taken as the detected stiffness. It should be noted that the hardness characterization result can only be compared with the hardness of other plates detected by the method in the transverse direction, but cannot be compared with the detection structure of a shore durometer, and therefore, the description is given.
The utility model provides a novel plastic hardness testing device, this technical scheme have at first adopted a brand-new detection principle, have designed the hardness appearance of particular structure based on this principle. Specifically speaking, the utility model discloses a material is examined in impressing to electronic jar drive steel ball, utilizes the average resistance that the in-process steel ball received to characterize and examine material hardness. The utility model arranges the pressure sensor on the pressing mechanism, thereby reading the upper pressure of the steel ball in real time; meanwhile, the utility model discloses set up the fore-set structure in steel ball side, when the steel ball was impressed completely and examined the material, the fore-set triggered and touched the button, stopped the pressure sensor value to accurate control the value node. The utility model abandons the principle of using the cross section area and the extension of the pressure head to reflect the hardness of the material to be detected, adopts single variable to represent the hardness, and has smaller system error; meanwhile, the detection can be completed only through the pressing-in action, so that the device is relatively simple in structure.
Drawings
FIG. 1 is a right side view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a partial cross-sectional view of the steel ball pressed into the material to be inspected in the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
in the figure:
| 1. |
2. Supporting |
3. |
4. |
| 5. |
6. |
7. |
8. Annular table |
| 9. Touch |
10. |
11. Protruding |
12. Pressure bearing table |
| 13. Material for |
14. Pedal |
15. A cable. |
Detailed Description
The following will describe in detail specific embodiments of the present invention. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A novel plastic product hardness testing device is shown in figures 1-4 and comprises a base 1, a support frame 2, a top box 3, a pressure sensor 4, a pressure rod 5, a steel ball 6, a blind hole 7, an annular table 8, a touch button 9, a top column 10, a protruding disc 11 and a pressure bearing table 12, wherein the upper end of the base 1 is fixedly connected with the support frame 2, the upper end of the support frame 2 is fixedly connected with the top box 3, the top box 3 is connected with a longitudinal electric cylinder, the lower end of the electric cylinder is fixedly connected with the pressure sensor 4, the lower end of the pressure sensor 4 is fixedly connected with the pressure rod 5, the lower end of the pressure rod 5 is fixedly connected with the steel ball 6, the lower end of the pressure rod 5 is provided with the longitudinal blind hole 7, the annular table 8 is arranged in the blind hole 7, the top end of the blind hole 7 is connected with the touch button 9, the top column 10 is inserted in the blind hole 7, the top end of the top column, the protruding disc 11 is located between the top end of the blind hole 7 and the annular table 8, a pressure bearing table 12 is fixedly connected to the base 1, and the pressure bearing table 12 is located below the steel ball 6.
The device has the following structural characteristics: the base 1 is used for bearing the support frame 2 and the bearing table 12; the supporting frame 2 is used for bearing the top box 3; the top box 3 is used for bearing the electric cylinder, in addition, necessary circuits can be arranged in the top box 3, and a display can be arranged on the surface of the top box 3 to display the reading of the pressure sensor; the longitudinally moving electric cylinder is used for pressing down the pressure sensor 4; when the pressure sensor 4 is pressed down, the pressure rod 5 and the steel ball 6 are driven to be pressed down, and after the steel ball 6 is contacted with the detection material 13, the pressure sensor 4 is pressed to generate a reading; the pressure rod 5 is used for bearing the steel ball 6 and arranging a blind hole 7, and meanwhile, the pressure rod 5 is also used for transmitting pressure upwards to the pressure sensor 4 so as to generate a reading; the steel ball 6 is used for being pressed into the material 13 to be detected, and in the process, the generated pressure is used for reflecting the hardness of the material 13 to be detected; the blind hole 7 is used for arranging a touch button 9 at the innermost end of the blind hole and inserting a top column 10 into the blind hole; the annular table 8 is used for supporting the protruding disc 11 on the top pillar 10, so that the lowest position of the top pillar 10 is limited, and the top pillar 10 is prevented from falling off the blind hole 7.
The length of the ejection column 10 and the distance between the top end of the blind hole 7 and the annular table 8 are required to ensure that when the ejection column 10 is pressed to the top end of the blind hole 9 to trigger the touch button 9, the lower end surface of the ejection column 10 and the top end of the steel ball 6 are positioned on the same horizontal plane, so as to ensure that when the steel ball 6 is completely pressed into the material to be detected 13, the ejection column 10 triggers the touch button 9; the touch button 9 is a control button for stopping value taking of the pressure sensor 4, when the steel ball 6 is pressed downwards into the material to be detected 13, the ejection column 10 is ejected upwards to the material to be detected 13, when the steel ball 6 is completely pressed into the material to be detected 13, the ejection column 10 triggers the touch button 9, and the pressure sensor 4 stops value taking; the pressure bearing table 12 is used for bearing the material to be detected 13; the material 13 is plastic product, the material 13 should be plate-shaped, and its thickness should not be less than 3 times of the diameter of the steel ball 6, so as to avoid the situation that the thickness is too thin and the pressure cannot be fed back truly; in addition, a foot switch 14 and a cable 15 can be arranged for conveniently controlling the starting and stopping of the electric cylinder.
The utility model discloses a detection principle as follows: the electric cylinder is utilized to drive the steel ball 6 to press down, and the pressure sensor 4 is arranged between the electric cylinder and the steel ball 6, so that the resistance (upper pressure) of the material 13 to be detected, which is received by the steel ball 6 in the pressing down process, can be read by the pressure sensor 4. When the steel ball 6 is in contact with the material to be detected 13 (when the pressure sensor 4 is provided with a reading), a value is set, when the steel ball 6 is completely pressed into the material to be detected 13, the ejection column 10 triggers the touch button 9, and the pressure sensor 4 stops taking the value; the readings of the pressure sensor 4 during this process are then averaged, and the average pressure is taken as the detected stiffness. It should be noted that the hardness characterization result can only be compared with the hardness of other plates detected by the method in the transverse direction, but cannot be compared with the detection structure of a shore durometer, and therefore, the description is given.
Example 2
A novel plastic product hardness testing device is shown in figures 1-4 and comprises a base 1, a support frame 2, a top box 3, a pressure sensor 4, a pressure rod 5, a steel ball 6, a blind hole 7, an annular table 8, a touch button 9, a top column 10, a protruding disc 11 and a pressure bearing table 12, wherein the upper end of the base 1 is fixedly connected with the support frame 2, the upper end of the support frame 2 is fixedly connected with the top box 3, the top box 3 is connected with a longitudinal electric cylinder, the lower end of the electric cylinder is fixedly connected with the pressure sensor 4, the lower end of the pressure sensor 4 is fixedly connected with the pressure rod 5, the lower end of the pressure rod 5 is fixedly connected with the steel ball 6, the lower end of the pressure rod 5 is provided with the longitudinal blind hole 7, the annular table 8 is arranged in the blind hole 7, the top end of the blind hole 7 is connected with the touch button 9, the top column 10 is inserted in the blind hole 7, the top end of the top column, the protruding disc 11 is located between the top end of the blind hole 7 and the annular table 8, a pressure bearing table 12 is fixedly connected to the base 1, and the pressure bearing table 12 is located below the steel ball 6. The steel ball detection device further comprises a detection material 13, wherein the detection material 13 is placed at the upper end of the pressure bearing table 12, and the thickness of the detection material 13 is not less than 3 times of the diameter of the steel ball 6. The electric cylinder is characterized by further comprising a foot switch 14 and a cable 15, wherein the foot switch 14 is located on the ground, and the foot switch 14 is electrically connected with the electric cylinder through the cable 15. The distance between the top end of the blind hole 7 and the annular table 8 is equal to the diameter of the steel ball 6. 2 top columns 10 are arranged, and the 2 top columns 10 are respectively positioned at two sides of the steel ball 6.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A novel plastic product hardness testing device is characterized by comprising a base (1), a support frame (2), a top box (3), a pressure sensor (4), a pressure rod (5), a steel ball (6), a blind hole (7), an annular table (8), a touch button (9), a top column (10), a convex disc (11) and a pressure bearing table (12), wherein the support frame (2) is fixedly connected to the upper end of the base (1), the top box (3) is fixedly connected to the upper end of the support frame (2), a longitudinal electric cylinder is connected in the top box (3), the pressure sensor (4) is fixedly connected to the lower end of the electric cylinder, the pressure rod (5) is fixedly connected to the lower end of the pressure sensor (4), the steel ball (6) is fixedly connected to the lower end of the pressure rod (5), the longitudinal blind hole (7) is formed in the lower end of the pressure rod (5), the annular table (8) is arranged in the blind hole (7), the steel ball pressing device is characterized in that a touch press button (9) is connected to the top end of the blind hole (7), the ejection column (10) is inserted into the blind hole (7), a protruding disc (11) is fixedly connected to the top end of the ejection column (10), the protruding disc (11) is located between the top end of the blind hole (7) and the annular table (8), a pressure bearing table (12) is fixedly connected to the base (1), and the pressure bearing table (12) is located below the steel ball (6).
2. The novel plastic product hardness testing device is characterized by further comprising a testing material (13), wherein the testing material (13) is placed at the upper end of the pressure bearing table (12), and the thickness of the testing material (13) is not less than 3 times of the diameter of the steel ball (6).
3. The novel plastic product hardness testing device of claim 1, characterized by further comprising a foot switch (14) and a cable (15), wherein the foot switch (14) is located on the ground, and the foot switch (14) is electrically connected to the electric cylinder through the cable (15).
4. The novel plastic hardness testing device as claimed in claim 1, wherein the distance from the top end of the blind hole (7) to the annular table (8) is equal to the diameter of the steel ball (6).
5. The novel plastic hardness testing device of claim 1, wherein 2 of the top columns (10) are provided, and 2 of the top columns (10) are respectively arranged on two sides of the steel ball (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207441.XU CN211402003U (en) | 2019-12-11 | 2019-12-11 | Novel plastic product hardness test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207441.XU CN211402003U (en) | 2019-12-11 | 2019-12-11 | Novel plastic product hardness test device |
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| CN211402003U true CN211402003U (en) | 2020-09-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504142A (en) * | 2021-08-13 | 2021-10-15 | 无锡恩捷新材料科技有限公司 | Shore hardness testing device and testing method |
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2019
- 2019-12-11 CN CN201922207441.XU patent/CN211402003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504142A (en) * | 2021-08-13 | 2021-10-15 | 无锡恩捷新材料科技有限公司 | Shore hardness testing device and testing method |
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