CN203237853U - Testing device for yarn tension control - Google Patents

Abstract

The utility model relates to an experimental device for yarn tension control. It includes pay-off shaft, bobbin, guide wheel, tension detector, grooved drum and take-up shaft. The difference is that the yarn unwinding shaft is driven by a frequency conversion motor, and the yarn unwinding shaft straddles the inner and outer support plates. The end is equipped with a brake disc and a brake, and the other end is equipped with a bobbin. The bobbin is slipped on the yarn-releasing shaft, and nuts at both ends respectively push the top blocks to fix the bobbin on the yarn-releasing shaft. The outer support plate can move along the axial direction, which is convenient for changing the bobbins. The floating yarn guide wheel realizes the sudden simulation of yarn tension through human dialing. The beneficial effect of the utility model is that the developed control algorithm can be verified and debugged in various working conditions, and the yarn tension change in the experiment process can be recorded for the developer and displayed intuitively.

Description

An Experimental Device for Yarn Tension Control

technical field

The utility model relates to an experimental device for yarn tension control, which is used for test verification in the research process of yarn tension control algorithm.

Background technique

At present, the research on the tension control algorithm of yarn and other similar materials mainly adopts the method of computer simulation or real machine field experiment. Computer simulation mostly uses MATLAB simulation. First, the control algorithm is packaged into a control module to establish a simulation framework, and then the validity of the algorithm is checked by inputting a mutation signal. This method has good practicability for the early research of the algorithm, but it is far from the actual situation, which leads to the need for a lot of debugging and correction in the actual implementation of the algorithm, which affects the development speed of the control algorithm. The cost of real machine experiments is relatively high, and many algorithm researchers cannot obtain real machines for experiments. Moreover, the real machine experiment lacks flexibility and cannot effectively simulate various emergencies in actual production in a short period of time.

Contents of the invention

In order to overcome the shortage of existing experimental conditions, the utility model provides an experimental device for yarn tension control, which can not only realize real-time detection of tension, real-time control of tension, and real-time feedback of control effects, but also provide The realization platform of different control algorithms can simulate various working conditions of yarn. Using this experimental setup, it is possible to maximize the optimization of the control algorithm.

The technical solution adopted by the utility model to solve the technical problem is: a yarn tension control experimental device, which includes:

Yarn unwinding shaft; the first bobbin arranged on the yarn unwinding shaft, said bobbin is used to pay out yarn; at least one yarn guiding wheel and at least one floating yarn guiding wheel for guiding yarn; tension detector, It is used to detect the tension of the yarn; the groove drum is used to collect the yarn and wind the yarn on the second bobbin; both the yarn releasing shaft and the groove drum are driven by frequency conversion motors, and the end of the yarn releasing shaft is equipped with a disc brakes.

Preferably, two threads are processed on the yarn-releasing shaft, and the threads processed at the two places respectively cooperate with the nuts to push the top block to fix the first bobbin on the yarn-releasing shaft.

The beneficial effect of the utility model is that the developed control algorithm can be verified and debugged in various working conditions, and the change of the yarn tension in the experiment process can be recorded for the developer, and can be displayed intuitively.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural diagram of the utility model.

Figure 2 is a diagram of the direction of the yarn.

Figure 3 is the installation diagram of the outer support plate

In the figure: 1, 26-frequency conversion motor; 2-brake; 3, 25-gearbox; 4-yarn releasing shaft; 5, 22- bobbin; Plate; 8-conical top block; 9-fastening nut; 10-yarn guide ring; 11, 12, 14, 15, 16, 18, 19-yarn guide wheel; 13-floating yarn guide wheel; 17-tension detection Device; 20-receiving end outer support plate; 21-receiving shaft; 23-receiving end inner support plate; 24-groove tube; 27-spring; 28-slide; 29-roller; 31-screw and nut assembly; 32-slotted hole; 33-fixed plate

Detailed ways

In Fig. 1, the frequency conversion motor (1) is fixedly installed with the input shaft of the gearbox (3), and the output shaft is fixedly installed with the yarn-releasing shaft (4), thereby driving the yarn-releasing shaft (4) to rotate according to the set speed. Brake disc and brake (2) are equipped with the end of yarn unwinding shaft (4), fast braking when being used for stopping. The yarn unwinding shaft (4) straddles the outer support plate (7) and the inner support plate (6).

According to the direction of the yarn, the yarn guide ring (10), yarn guide wheel (11), floating yarn guide wheel (13), yarn guide wheel (14), yarn guide wheel (15), yarn guide wheel (16) , Tension detector (17), thread guide wheel (18) and thread guide wheel (19) are installed on the wallboard perpendicular to base plate. Yarn running according to this route can sequentially realize tension mutation and real-time detection of tension.

Frequency conversion motor (26) output shaft and gear box (25) input shaft are adorned, and gear box (25) output shaft is adorned with groove tube (24). The variable frequency motor (26) finally drives the grooved cylinder (24) to rotate, and the grooved cylinder (24) is straddled on the outer support plate (20) and the inner support plate (23). The receiving shaft (21) is also straddled on the outer support plate (20) and the inner support plate (23) equally, is installed above the groove drum, and is driven by the groove drum to rotate by friction. The yarn is wound on the bobbin (22) by the groove drum (24) to realize yarn collection.

In Fig. 2, the floating guide wheel (13) is slid in the slideway (28) by its roller (29), and the roller (29) top is connected with spring (27), and spring (27) is fixed on the wallboard. When the experimental device is working normally, the force of the spring is balanced, and the floating guide wheel (13) keeps the yarn constant at this time. When the yarn tension fluctuates, the automatic tension of the floating guide wheel (13) is realized by sliding up and down compensate. Artificially toggling the toggling handle (30) installed on the shaft end of the floating yarn guide wheel (13) up and down can realize the sudden change simulation of the yarn tension.

In Fig. 3, four fixed plates (33) are welded on the outer support plate (7), and there are holes on the fixed plate (33), and the screw rod passes through the grooved hole (32) and the hole on the fixed plate (33) successively from the bottom. After the hole, cooperate with the nut (31) to fix the outer support plate (7) on the base plate. The remaining three fixed plates are fixed in the same way. When the outer support plate (7) needs to be moved, the outer support plate can be moved along the slotted hole (32) only by loosening the four nuts.

Claims (2)

1. A yarn tension control experimental device, comprising: unwinding shaft; a first bobbin arranged on the yarn unwinding shaft, and the bobbin is used to let out the yarn; at least one guide wheel and at least one floating guide wheel for guiding the yarn; A tension detector for detecting the tension of the yarn; a drum for receiving the yarn and winding the yarn on the second bobbin; It is characterized in that both the yarn-releasing shaft and the trough are driven by frequency conversion motors, and a disc brake is installed at the end of the yarn-releasing shaft. 2. The device according to claim 1, characterized in that the yarn releasing shaft is processed with threads at two places, and the threads processed at the two places respectively cooperate with the nuts to push the top block to fix the first bobbin on the yarn releasing shaft. on axis.

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