CN-224216420-U - Roving strength measuring instrument

CN224216420UCN 224216420 UCN224216420 UCN 224216420UCN-224216420-U

Abstract

The roving frame strong dynamometer mainly comprises a base, a lower dynamometer rod, an upper dynamometer rod and a dynamometer scale rod, wherein a lower dynamometer rod support and a support are fixedly arranged on the base, the dynamometer scale rod is connected with the top of the support through a fulcrum shaft, scales are arranged on the dynamometer scale rod, the dynamometer scale rod is movably connected with a hanging frame, a dynamometer weight is hung on the hanging frame, the lower dynamometer rod and the upper dynamometer rod respectively penetrate through the upper part of the lower dynamometer rod support and the rear end of the dynamometer scale rod, and an upper control frame is connected between the lower dynamometer rod and the upper dynamometer rod. The utility model adopts the steelyard weighing structure, accurately measures the strength value of the roving by using a very simple method, guides a process technician to reasonably control the twist of the roving, and has the advantages of reasonable design, convenient operation and accurate measurement.

Inventors

WANG FUHUA
LI XIANGDONG
LI YUBIN
ZHAO ZHENLIN
LI LIYUN
ZHANG RONGKAI
WANG JINQUAN

Assignees

德州华源生态科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250515

Claims (3)

1. The roving frame strong dynamometer is characterized by mainly comprising a base, a lower dynamometer rod, an upper dynamometer rod and a dynamometer scale rod, wherein a lower dynamometer rod support and a support are fixedly arranged on the base, the dynamometer scale rod is connected with the top of the support through a fulcrum shaft, scales are arranged on the dynamometer scale rod, the dynamometer scale rod is movably connected with a hanging frame, a dynamometer weight is hung on the hanging frame, the lower dynamometer rod and the upper dynamometer rod respectively penetrate through the upper part of the lower dynamometer rod support and the rear end of the dynamometer scale rod, and an upper control frame is connected between the lower dynamometer rod and the upper dynamometer rod.
2. The roving frame strength dynamometer of claim 1, wherein a lower control frame is arranged on a base at the front side of the support, and a U-shaped groove is arranged at the top of the lower control frame.
3. The roving frame strength dynamometer of claim 1, wherein the length from the fulcrum point of the dynamometer scale stem to the front end thereof is 5 times the length from the fulcrum point to the rear end of the dynamometer scale stem.

Description

Roving strength measuring instrument Technical Field The utility model relates to the technical field of textile detection instruments, in particular to a roving strength dynamometer. Background Among the indicators of the cotton textile semifinished product, the yarn strength value of the roving is a very important indicator in the spinning process. The strength value of the yarn is also called as yarn strength, the yarn is small twisted in a ring shape, the yarn is also called as yarn tension breaking strength when the ends are firmly tied, 100 turns of the hank yarn are used as units of kilogram force (kgf) in metric system, 80 turns of the hank yarn are used as units of pound force (1 bf) in English system. The strength value of the yarns of the roving is the soul of the spinning, and if the strength of the roving is too high, the drafting is not opened until the spinning process of the spinning, so that a spinning leather roller is damaged. If the strength of the roving is too small, the roving is broken when spinning in the spinning process. When the roving strength is controlled to be larger or smaller, the life of the spun yarn is influenced, so that the production efficiency of the spun yarn is reduced, the quality is deteriorated, and the like. There is no instrument for testing the strength of shaped roving in the current means for testing the strength of roving. The strength control of the roving in the cotton spinning factory is to detect the strength of the roving through hand feeling and then control the strength of the roving through adjusting the twist coefficient of the roving. The tester detects the strength error of the roving by hand feeling. The hand feeling of different people is different. The method brings great difficulty to the effective and accurate control of the strength of the roving. Fluctuations in spun yarn life and quality due to poor strength control of the roving often occur in production. Disclosure of utility model The utility model provides a roving yarn strength dynamometer, which aims to solve the problem that spinning enterprises in the prior art lack instruments special for detecting roving yarn strength values. The technical scheme adopted for solving the technical problems is as follows: The roving frame strong dynamometer mainly comprises a base, a lower dynamometer rod, an upper dynamometer rod and a dynamometer scale rod, wherein a lower dynamometer rod support and a support are fixedly arranged on the base, the dynamometer scale rod is connected with the top of the support through a fulcrum shaft, scales are arranged on the dynamometer scale rod, the dynamometer scale rod is movably connected with a hanging frame, a dynamometer weight is hung on the hanging frame, the lower dynamometer rod and the upper dynamometer rod respectively penetrate through the upper part of the lower dynamometer rod support and the rear end of the dynamometer scale rod, and an upper control frame is connected between the lower dynamometer rod and the upper dynamometer rod. The base on the front side of the support is provided with a lower control frame, the top of the lower control frame is provided with a U-shaped groove, and the force measuring scale rod floats up and down in the U-shaped groove. The length from the pivot point of the force measuring scale rod to the front end of the force measuring scale rod is 5 times the length from the pivot point to the rear end of the force measuring scale rod. The roving yarn strength dynamometer adopts a steelyard structure, the dynamometer weight is a standard measuring weight (metal), the mass range is 50 g-500 g, and the total weight is 8 grades. The length (750 mm) from the fulcrum point of the load lever to the right end of the load lever is 5 times the length (150 mm) from the fulcrum point to the load lever. The force measuring scale rod is provided with a scale value, the scale value at the position 150mm from the fulcrum point to the right is 1.0, and each time the scale value is increased by 25mm to the right is the force arm length number (mm)/150, and the weighing scale range is 1.0 times/5.0 times. When the roving strength is measured, the roving test sample is wound for 2 circles along the axis inclined direction at the identification point of the upper force measuring rod of the roving strength meter, so that the outer ring sliver presses the inner ring sliver to generate self-locking, and then the roving test sample is vertically downwards wound on the lower force measuring rod, and uniformly arranged and wound for 5 circles. And winding the roving test sample to the upper force measuring rod, winding the upper force measuring rod for 2 weeks to finish, twisting off the tail of the 10 cm long yarn of the roving test sample, and penetrating the inner side of the lock yarn of the roving test sample in a tail extension arrangement to generate self-locking. And moving the force measuring weight to 0 position, dragging the forc