Malvern capillary rheometer pressing device

Abstract

The invention relates to a Malvern capillary rheometer pressing device including a connection table and a pressing table; one side of the connection table is arc-shaped, and forms in one with a fastening ring to be fixed to the upper end of a pressure column of a rheometer; the other side of the connection table is provided with grooves clamped with projection blocks of the side face of the pressing table and fastened by a bolt; the pressing table is provided with pressing cavities penetrating up and down, pressing rods are movably inserted in the pressing cavities, one end face of each pressing rod penetrates into a charging barrel of the rheometer to make contact with a rubber material, and the side face of each pressing rod is provided with a rack; pressing gear cavities communicating with the pressing cavities and laterally penetrating the pressing table are arranged, the pressing gear cavities are internally provided with fan-shaped pressing gears, the middle of each pressing gearis provided with a positioning hole, and one end of each of force applying handles passes through the wall of the corresponding pressing gear cavity and is fixed with the corresponding pressing gear;the pressing gears are meshed with the racks in a manner of left-and-right rotation, and the pressing rods are driven to move up and down to make the rubber material in the charging barrel of the rheometer compacted or be away from the rubber material. The operation process is simple, the influence of human factors is reduced, and test results are more accurate.

Description

Technical field: [0001] This equipment relates to the technical field of evaluating the fluidity of raw rubber and unvulcanized rubber using a Malvern capillary rheometer. technical background: [0002] Capillary rheometer is an important technical means to evaluate the fluidity of raw rubber and unvulcanized rubber. This test technology is of great significance to the quality control and improvement of on-site products. The repeatability and reliability of the test results are very important. [0003] However, there are some technical difficulties in the capillary rheometer: 1) When placing the sample, it is necessary to control the pressure during the compaction process. The pressure has a required range, and it is difficult for staff with insufficient strength to carry out the test. 2) In the process of compacting the sample, it is difficult to ensure that the applied force is within the required range, and it is difficult to control the consistency of the parallel test o...

AI Technical Summary

Problems solved by technology

[0003] However, there are some technical difficulties in the capillary rheometer: 1) When placing the sample, it is necessary to control the pressure during the compaction process. The pressure has a required range, and it is difficult for staff with insufficient strength to carry out the test.

2) In the process of compacting the sample, it is difficult to ensure that the applied force is within the required range, and it is difficult to control the consistency of the parallel test or comparative test process

3) In the process of cleaning the machine at the end of the test, due to the long cavity, the residual rubber is difficult to clean up, and it needs to be pressed out with the equipment pressure device, which is easy to damage the cleaning tools and cause additional losses

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