TWI694247B - Expantion ratio detection system - Google Patents

Abstract

An expansion ratio detection system for rubber, including a controller, a rubber sampling module, a rubber calender, a temperature control module, and an expansion ratio detection module. The rubber sampling module obtains a rubber to be tested meeting to a weight value. After the temperature control module determines that the rubber to be tested has reached a first temperature value, the rubber calender outputs the rubber to be tested having a thickness value. The expansion ratio detection module obtains an expansion ratio based on the double thickness value and a roller spacing.

Description

Expansion rate detection system

The invention relates to an expansion rate detection system, in particular to an expansion rate detection system for rubber processing.

In the field of rubber testing, such as the National Standards (GB) of the People's Republic of China, the International Organization for Standardization (ISO), the American Society for Testing and Materials (ASTM) and the Malaysian Rubber Research Institute ( Rubber Research Institute of Malaysia, RRIM) and other international testing organizations, the standards established by ISO are gradually popularized outside North America.

However, in the field of rubber testing, there is still a lack of a one-stop system for rapid and continuous testing of rubber. In the actual production and application of rubber in commercial production lines, due to the inability to rely on the rubber to be tested with a specific sampling weight The precise control of the roller pitch of the rubber calender and the temperature of the rubber to be measured, therefore, the accurate expansion rate cannot be obtained, causing trouble for the rubber testing industry and rubber-related manufacturers, and increasing production costs.

Therefore, how to design an expansion rate detection system to solve the aforementioned technical problems is an important subject studied by the inventor of the present case.

The purpose of the present invention is to provide an expansion rate detection system, which can accurately control the roller spacing of the rubber calender and the temperature of the rubber to be measured according to the rubber to be measured with a specific sampling weight, thereby obtaining an accurate expansion rate and reducing the rubber The purpose of the production cost of the relevant manufacturing industry.

To achieve the above-mentioned purpose, the expansion rate detection system proposed by the present invention is applied to rubber that has been calendered at least six times and has a Muni index, including a controller, a rubber sampling module, a rubber calender, a temperature control module, and Expansion rate detection module; wherein, the controller generates a weight value, thickness value D, first temperature value, and roller spacing G; a rubber sampling module is coupled to the controller, and the rubber sampling module samples the rubber according to the weight value, and obtains compliance The rubber of the weight value to be tested; the rubber calender is coupled to the controller and the rubber sampling module. The rubber calender includes two rollers arranged in parallel, and the two rollers are separated from each other by the roller gap G; the temperature control module is coupled to the controller and the rubber In the calender, the temperature control module maintains the rubber under test with the first temperature value. After the temperature control module determines that the rubber under test in the rubber calender has reached the first temperature value, the two rollers continuously calender the rubber under test twice. And output the rubber to be measured with the thickness D; the expansion rate detection module is coupled to the controller and the rubber calender. The expansion rate detection module obtains the expansion rate E = 2D/G based on the double thickness value D and the roller gap G ; Among them, the Muni index is between 61.07 and 91.06, and the Muni viscosity; the roller pitch G is changed in the smallest unit of 0.001 mm according to the number of rubber calendering times, and the roller pitch G is between 0.065 mm and 0.145 mm.

Further, the weight value is 25 grams.

Further, the first temperature value is 25 degrees Celsius.

Further, the number of rubber rollings is six, and the roller pitch G is 0.065 mm.

Further, the expansion rate detection system further includes a plasticity detection module, which folds the rubber to be measured which is continuously calendered twice, and cuts out a cylinder with a thickness D that is twice the thickness, Next, the plasticity detection module heats the cylinder to the second temperature value, then applies 10 kg of pressure and maintains it for 15 seconds, then releases the cylinder, the plasticity detection module obtains the first rebound after the cylinder is impacted The instantaneous first rebound thickness, and output the initial plasticity value; wherein, the first rebound thickness is 0.01 mm as the minimum unit.

Further, the second temperature value is 100 degrees Celsius.

Further, the expansion rate detection system further includes a plasticity detection module, which folds the rubber to be measured which is continuously calendered twice, and cuts out a cylinder with a thickness D that is twice the thickness, Then, the cylinder is heated to 140 degrees Celsius and maintained for 30 minutes before cooling; finally, the plasticity detection module heats the cooled cylinder to the second temperature value, and then applies a pressure of 10 kg and maintains for 15 seconds before releasing Cylinder, the plasticity detection module obtains the second rebound thickness after the impact of the cylinder and at the moment of the first rebound, and outputs the aging plasticity value; where the second rebound thickness is 0.01 mm as the minimum unit.

Further, the second temperature value is 100 degrees Celsius.

Further, the speed ratio of the two rollers is 1:1.

Further, the temperature control module is a water-cooled ice water machine.

When using the aforementioned expansion rate detection system, the controller causes the rubber sampling module to obtain the rubber under test corresponding to the weight value; then the temperature control module maintains the rubber under test with the first temperature value, when the temperature control module determines the rubber calender After the rubber under test has reached the first temperature value, the two rollers separated by the roller gap G continuously roll the rubber under test twice, and the rubber under test with a thickness D is output; finally, the expansion rate detection module is based on double The thickness value D and the roller spacing G obtain an expansion ratio E = 2D/G. To this end, the present invention can accurately control the roller gap G of the rubber calendering machine based on the rubber with a specific number of continuous calendering times (such as continuous calendering for at least six times) and the rubber to be tested with a specific sampling weight (such as the weight value) The roller gap G can be changed according to the number of rubber calendering times and the smallest unit is 0.001 mm) and the temperature of the rubber to be measured (such as the first temperature) to obtain the accurate expansion rate E to achieve a reduction The purpose of production costs of rubber-related manufacturing.

In order to further understand the technology, means and effects of the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. I believe that the features and characteristics of the present invention can be gained an in-depth and specific understanding However, the accompanying drawings are provided for reference and explanation only, and are not intended to limit the present invention.

The following is a description of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied by other different specific examples. Various details in the description of the present invention can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

It should be noted that the structure, proportion, size, number of elements, etc. shown in the drawings in this specification are only used to match the contents disclosed in the specification for those familiar with this technology to understand and read, not to limit the invention. The conditions for implementation are not technically significant. Any modification of structure, change of proportional relationship or adjustment of size should fall within the scope of the present invention without affecting the efficacy and purpose of the invention. The technical content disclosed by the invention can be covered.

The technical content and detailed description of the present invention are explained below in conjunction with the drawings.

Please refer to FIG. 1, which is an architectural diagram of a first embodiment of an expansion rate detection system of the present invention.

The expansion rate detection system of the present invention is applied to rubber 100 which has been calendered continuously for at least six times and has a Muni index, including: a controller 10, a rubber sampling module 20, a rubber calender 30, and a temperature control module Group 40 and an expansion rate detection module 50. Among them, the Mooney index is the Mooney viscosity between 61.07 and 91.06. The Muni viscosity is a comprehensive index of natural rubber's hardness, viscosity, and flow rate. The higher the Muni viscosity, the harder the rubber, the less tacky, the poor fluidity, and the low plasticity. Conversely, the lower the Muni viscosity, the softer and more viscous the rubber is, the better the fluidity and the higher the plasticity.

The controller 10 generates a weight value 101, a first temperature value 102, and a roller gap G. The controller 10 may be any one of a CPU, MPU, ASIC, or SoC.

The rubber sampling module 20 is coupled to the controller 10, and the rubber sampling module 20 samples the rubber 100 according to the weight value 101, and obtains a rubber 200 to be tested corresponding to the weight value 101. The rubber sampling module 20 may be a device composed of a robot arm, a cutter, and a conveyor belt. In the first embodiment of the invention, the weight value 101 is 25 grams.

The rubber calender 30 is coupled to the controller 10 and the rubber sampling module 20. The rubber calender 30 includes two rollers (not shown) arranged in parallel, and the two rollers are separated from each other by a roller gap G. Further, the roller pitch G is changed according to different rolling times (at least six times) of the rubber 100 with a minimum unit of 0.001 mm, and the roller pitch G is between 0.065 mm and 0.145 mm. In the first embodiment of the present invention, the number of calendering of the rubber 100 is six, the distance G between the rollers is 0.065 mm, and the optimal speed ratio of the two rollers is 1:1.

The temperature control module 40 is coupled to the controller 10 and the rubber calender 30. The temperature control module 40 maintains the rubber 200 to be tested to have a first temperature value 102. After the temperature control module 40 determines that the rubber 200 to be tested in the rubber calender 30 has reached the first temperature value 102, the two rollers continuously roll the rubber 200 to be tested twice (including the rubber 100 that is continuously rolled at least six times, the same material The cumulative number of calenderings reaches at least eight times), and the rubber 200 to be measured whose thickness is the thickness value D is output. In the first embodiment of the present invention, the first temperature value 102 is 25 degrees Celsius. In the first embodiment of the present invention, the temperature control module 40 is a water-cooled ice water machine.

The expansion rate detection module 50 is coupled to the controller 10 and the rubber calender 30. The expansion rate detection module 50 obtains the expansion rate E = 2D/G according to the double thickness value D and the roller gap G. That is to say, the expansion ratio detection module 50 can be based on the measured thickness value D and the roller pitch G corresponding to the number of calendering times of the rubber 100 used at the beginning 0.065 mm), learn about the difference in expansion rate between different test processes, and by comparing the different rubber article numbers or different rubber types used in each test, it allows rubber testing companies and rubber-related manufacturers to easily control materials , Expansion rate loss and cost due to processing such as calendering or heat treatment.

Please refer to FIGS. 2 to 4, wherein FIG. 2 is an architectural diagram of a second embodiment of the expansion rate detection system of the present invention; FIGS. 3A and 3B are cylinders cut out by the plasticity detection module of the present invention. Schematic diagram; FIG. 4 is a flow chart of the output initial plasticity value of the expansion rate detection system of the present invention.

The first embodiment of the present invention is substantially the same as the second embodiment, but the second embodiment further includes a plasticity detection module 60 that folds in half for the rubber 200 to be tested which is continuously rolled twice (as shown in FIG. 4 Step S1), and cut out a cylinder 300 (as shown in step S2 of FIG. 4) with a thickness D (that is, 2D, as shown in FIGS. 3A and 3B) twice the thickness. Next, the plasticity detection module 60 heats the cylinder 300 to the second temperature value (as shown in step S3 of FIG. 4), and then applies a pressure of 10 kg and maintains for 15 seconds to release the cylinder 300 (as shown in step S4 of FIG. 4) ). The second temperature value is 100 degrees Celsius. Plasticity after obtaining the detection module 60 and the first by the impact of the thickness of the first resilient rebound instantaneous cylinder 300 (FIG. 4 step S5), and outputs an initial value plasticizer P ₀ (step 4 in FIG. S6). The thickness of the first rebound is 0.01 mm as the smallest unit.

Please refer to FIG. 5, which is a flowchart of the output aging plasticity value of the expansion rate detection system of the present invention. It is based on the second embodiment of the present invention, and is basically the same as the process of outputting the initial plasticity value P ₀ described above, but a step S7 is further included between the step S2 and the step S3, the step S7 is for the cylinder 300 is heated to 140 degrees Celsius and maintained for 30 minutes, and then cooled to heat aging the cylinder 300 to obtain the aging plasticity value P30.

Further, through the initial plasticity value P ₀ and the aging plasticity value P ₃₀ obtained above, a plasticity retention index (PRI) can be obtained:

When using the aforementioned expansion rate detection system, the controller causes the rubber sampling module to obtain the rubber to be tested that meets the weight value; then the temperature control module maintains the rubber to be tested to have the first temperature value, when the temperature control module determines the rubber calender After the rubber under test has reached the first temperature value, the two rollers separated by the roller gap G continuously roll the rubber under test twice and output the rubber under test with a thickness D; finally, the expansion rate detection module is based on double The thickness value D and the distance G between the rollers obtain an expansion ratio E = 2D/G. To this end, the present invention can accurately control the roller gap G of the rubber calendering machine according to the rubber with a specific number of continuous calendering times (such as at least six continuous calenderings) and the rubber to be tested with a specific sampling weight (such as 25 grams) The distance G between the rollers can be changed according to the number of rubber calendering times and the smallest unit is 0.001 mm) and the temperature of the rubber to be measured (such as 25 degrees Celsius) to obtain the accurate expansion rate E. Moreover, the expansion rate E can be compared with the initial plasticity value P ₀ , the aging plasticity value P ₃₀ , and the plasticity residual rate PRI together.

Among them, when the number of calenderings of the rubber 100 is six, the roller pitch G is 0.065 mm. When the number of calendering of the rubber 100 is ten times, the roller pitch G is 0.075 mm. When the number of calenderings of the rubber 100 is sixteen, the roller pitch G is 0.085 mm. When the number of rolling times of the rubber 100 is twenty-two times, the roller pitch G is 0.095 mm. When the number of calenderings of the rubber 100 is 28, the roller pitch G is 0.125 mm. When the number of calenderings of the rubber 100 is thirty-four times, the roller pitch G is 0.145 mm. However, the invention is not so limited.

Please refer to the table below: P ₀ P ₃₀ PRI G Muni proportion power Expansion rate Rubber A to be tested after calendering 6 times 45.0 29.2 64.89 0.0650 91.06 0.919 0.3259 52.31 Rubber A to be tested after rolling 10 times 40.0 27.0 67.50 0.0750 84.72 N/A 0.4355 45.33 Rubber A to be tested after rolling 16 times 38.6 26.9 69.69 0.0850 80.43 N/A 0.6762 40.00 Rubber A to be tested rolled 22 times 37.4 28.3 75.67 0.0950 76.00 0.920 0.8985 35.79 Rubber A to be tested after calendering 28 times 32.6 25.7 78.83 0.1250 66.62 0.920 1.1392 27.20 Rubber A to be tested 34 times calendered 31.4 24.0 76.43 0.1450 62.25 0.920 1.3652 23.45 Rubber B to be tested after calendering 6 times 37.6 26.6 70.74 0.0500 78.18 N/A 0.3110 68.00 Rubber B to be tested after rolling 10 times 36.6 26.1 71.31 0.0625 73.14 0.9149 0.4150 54.40 Rubber B to be tested rolled 16 times 34.3 24.7 72.01 0.0800 67.66 N/A 0.6340 42.50 Rubber B to be tested rolled 22 times 31.9 23.1 72.54 0.1150 61.07 N/A 0.8520 29.57

Take another table as an example: P ₀ P ₃₀ PRI G Muni proportion power Expansion rate Company C Rubber C1 32.5 19.7 60.62 0.100 65.72 0.9143 0.2340 34.00 Company C Rubber C2 32.7 19.9 60.86 0.100 65.81 0.9150 0.2345 34.00 Company D Rubber D1 32.5 18.1 55.69 0.130 63.38 0.9127 0.2520 26.15 Company D Rubber D2 30.2 17.7 58.61 0.130 61.41 0.9128 0.2441 26.15 Company D Rubber D3 32.4 18.7 57.72 0.130 64.74 0.9122 0.2542 26.15 Company D Rubber D4 30.2 16.7 55.30 0.130 60.51 0.9126 0.2462 26.15

It can be seen from the above table that although the average specific gravity of company D's rubber is better than that of company C, the average expansion rate of company D's rubber is less than the average expansion rate of company C's rubber. There may be cases of false doping.

Further, since the rubber trading market conducts transactions and processing on a very large order of magnitude, the expansion rate E is an accurate assessment of the production cost of rubber-related industries (such as tire industry, medical rubber industry or household goods industry, etc.) Quite important. The invention enables the rubber testing industry and rubber related manufacturers to learn about the difference in the expansion rate between different test processes, and by comparing the different rubber article numbers or different types of rubber used in each test, the rubber testing industry and the rubber Relevant manufacturers can easily control the loss of expansion rate and cost of materials due to processing such as calendering or heat treatment, so as to reduce the production cost of rubber-related manufacturing.

The present invention can further control access rights of the expansion rate E in combination with RFID, fingerprint, voiceprint, face recognition, etc. However, the present invention is not limited to this.

The rubber industry has learned that the closer to the equator, the higher the average production capacity of natural rubber, the better the average quality and the thicker the secreted gum. After years of experience accumulation and R&D design, the aforementioned technology can be a calculation model and testing equipment specifically for natural rubber, which can test and calculate: specific gravity loss, rubber expansion rate loss, power consumption loss, manpower and machine consumption. The misunderstanding of price and value of natural rubber of various grades and numbers can be calculated, and the analysis and comparison data of the price and value of natural rubber can be converted. From this point on, it is possible to avoid to the greatest extent possible the invisible loss caused by the company because of the incorrect labeling of natural rubber, or the lack of correct data, the purchasing personnel only purchasing according to their rules of thumb or market conditions, or human misjudgment. Especially for companies with a large amount of natural rubber, the use of the aforementioned technology will definitely reduce raw material procurement costs, or increase production costs due to non-optimal specifications. It can also avoid mistakes caused by procurement personnel or disadvantages caused by opaque areas. The human and tire and natural rubber industries can save a lot of money and avoid the waste of global resources.

The above are only the detailed descriptions and drawings of the preferred embodiments of the present invention, but the features of the present invention are not limited to this, and are not intended to limit the present invention. All the scope of the present invention should be based on the following patent applications Subject to the spirit of the patent application scope of the present invention and the embodiments of similar changes should be included in the scope of the present invention, any person familiar with the art in the field of the present invention can easily think of changes or Modifications can be covered in the patent scope of the following case.

10: Controller

20: Rubber sampling module

30: Rubber calender

40: Temperature control module

50: Expansion rate detection module

60: Plasticity detection module

100: rubber

101: weight value

102: first temperature value

200: rubber to be tested

300: cylinder

D: thickness value

E: Expansion rate

G: Roller pitch

S1~S7: Step

FIG. 1 is an architecture diagram of a first embodiment of an expansion rate detection system of the present invention;

FIG. 2 is an architecture diagram of a second embodiment of the expansion rate detection system of the present invention;

3A and 3B are schematic diagrams of a cylinder cut out by the plasticity detection module of the present invention;

4 is a flow chart of the output initial plasticity value of the expansion rate detection system of the present invention; and

5 is a flow chart of the output aging plasticity value of the expansion rate detection system of the present invention.

10: Controller

20: Rubber sampling module

30: Rubber calender

40: Temperature control module

50: Expansion rate detection module

100: rubber

101: weight value

102: first temperature value

200: rubber to be tested

D: thickness value

E: Expansion rate

G: Roller pitch

Claims (10)

An expansion rate detection system, applied to a rubber that has been calendered at least six times and has a Muni index, including: A controller generates a weight value, a first temperature value and a roller gap G; A rubber sampling module, coupled to the controller, the rubber sampling module samples the rubber according to the weight value, and obtains a rubber to be tested that matches the weight value; A rubber calender, coupled to the controller and the rubber sampling module, the rubber calender includes two rollers arranged in parallel, and the two rollers are separated from each other by the roller gap G; A temperature control module, coupled to the controller and the rubber calender, the temperature control module maintains that the rubber under test has the first temperature value, when the temperature control module judges the rubber under test in the rubber calender After the rubber has reached the first temperature value, the two rollers continuously calender the rubber under test twice and output the rubber under test with a thickness D of the thickness; and An expansion rate detection module, coupled to the controller and the rubber calender, the expansion rate detection module obtains an expansion rate E = 2D/G based on twice the thickness value D and the drum spacing G; Wherein, the Muni index is between 61.07 and 91.06 Muni viscosity; the roller pitch G is changed in the smallest unit of 0.001 mm according to the different calendering times of the rubber, and the roller pitch G is between 0.065 mm and 0.145 mm between. The expansion rate detection system as described in item 1 of the patent application range, wherein the weight value is 25 grams. The expansion rate detection system as described in item 1 of the patent application range, wherein the first temperature value is 25 degrees Celsius. The expansion rate detection system as described in item 1 of the patent application range, wherein the number of calenderings of the rubber is six, and the roller pitch G is 0.065 mm. The expansion rate detection system as described in item 1 of the patent application scope further includes a plasticity detection module that folds the rubber to be measured twice in continuous rolling and cuts out a thickness of twice A cylinder with the thickness D, then, the plasticity detection module heats the cylinder to a second temperature value, then applies a pressure of 10 kg and maintains the cylinder for 15 seconds, then releases the cylinder, the plasticity detection The module obtains a first rebound thickness after the impact of the cylinder and at the moment of the first rebound, and outputs an initial plasticity value; wherein the first rebound thickness is 0.01 mm as the minimum unit. The expansion rate detection system as described in item 5 of the patent application range, wherein the second temperature value is 100 degrees Celsius. The expansion rate detection system as described in item 1 of the patent application scope further includes a plasticity detection module that folds the rubber to be measured twice in continuous rolling and cuts out a thickness of twice A cylinder with the thickness D, then, the cylinder is heated to 140 degrees Celsius and maintained for 30 minutes and then cooled; finally, the plasticity detection module heats the cooled cylinder to a second temperature value, Then, after applying a pressure of 10 kg and maintaining for 15 seconds, the cylinder is released, and the plasticity detection module obtains a second rebound thickness after the impact of the cylinder and the first rebound instant, and outputs an aged plasticity Degree value; wherein, the second rebound thickness is 0.01 mm as the smallest unit. The expansion rate detection system as described in item 7 of the patent application range, wherein the second temperature value is 100 degrees Celsius. The expansion ratio detection system as described in item 1 of the patent application scope, wherein the speed ratio of the two rollers is 1:1. The expansion rate detection system as described in item 1 of the patent application scope, wherein the temperature control module is a water-cooled ice water machine.

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