JPS59102765A - Wire rod winder - Google Patents

Abstract

PURPOSE:To keep tension of a wire rod and speed of the wire constant by controlling each rotating speed of variable speed motors of a draw-out device and a winder by each position of dancer rollers of the devices and the winder, in a wire rod winder suitable for a continuous annealing device for a metal fine wire. CONSTITUTION:A wire rod winder includes a draw-out device 3 for drawing out a wire rod 2 from a spool where the wire rod 2 is rolled, a capstan 4 for pulling out the wire rod 2 from the draw-out device 3 and a winder 5 for rolling the wire rod 2 round a take-up spool. Dancer rollers 10, 17 are interposed among the capstan 4, the draw-out device 3 and the winder 5, and the position of the dancer rollers 10, 17 during oscillation can be detected by potentiometers 11, 19. Electric signals from the potentiometers 11, 19 are input to control back 9, 16, so that the rotating speed of variable-speed motors 7, 15 are controlled to keep constant the tension of the wire rod that is known from the vertical position of the dancer rollers 10, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire winding device suitable for being incorporated into a continuous annealing device for fine metal wire.

Tungsten with a wire diameter of 10 microns to several tens of microns,
In continuous annealing, electrolytic polishing, etc. of thin metal wires such as molybdenum, it is necessary to always maintain the E length of the wire and the wire speed in order to prevent wire breakage during processing and to equalize processing conditions. The winding device that has been widely used in processing equipment such as the above-mentioned continuous annealing has been equipped with a winding machine driven by a torque motor and a wire feeding machine having a braking means such as a friction brake. In order to avoid wire breakage, the speed had to change very slowly during starting and stopping, which was uneconomical because there were many defective parts at the ends due to changes in the processing conditions of the wire. In addition, since the winding speed changes depending on the magnitude of the torque, the moving speed of the wire rod is unstable, making it impossible to perform uniform processing. There was also the problem that the tension of the wire increased due to the resistance force based on inertia, making it more likely to break. Particularly when used in an annealing device, controlling the tension of the wire has become an important issue because the tensile strength of the wire heated to high temperature in the furnace is significantly reduced.

This invention was made for the purpose of providing a winding device that can always keep the tension and wire speed of the wire rod in a favorable state during work. A capstor for driving the wire is provided at an intermediate portion between a feeding machine that feeds out a wire as a raw material while being rotated by a variable speed motor, and a winding machine that winds up the wire while being rotated by a variable speed motor. and the capstan, and between the winder and the capstan, dancer rollers are provided that swing by the tension of the wire, and the variable speed motor on the feeder side and the variable speed motor on the winder side are rotated. It is characterized in that the speed is controlled by the position of the dancer rollers provided on each side.

This will be explained below based on the embodiment shown in the drawings. FIG. 1 is a block diagram showing an example in which the wire winding device according to the present invention is used as a winding device of a continuous annealing device. This wire winding device 1 includes a feeding machine 3 that holds a spool wound with a wire and feeds out the wire 2 from the spool, a capstan 4 that draws out the wire 2 from the feeding machine 3, and a wire rod 2. It is equipped with a winding machine 5 that winds up a winding spool.

The feeding machine 3 is rotationally driven by a variable speed motor 7, and the rotational speed of the variable speed motor 7 is controlled by a control back 9. A dancer roller 10 on which the wire rod 2 is hung is provided between the feeding machine 3 and the capstan 4. The dancer roller 10 is biased in a fixed direction by biasing means such as a spring or a weight, and is provided to swing in response to changes in the tension of the wire rod 2. The position of the dancer roller 10 during its swinging is converted into an electrical signal by a potentiometer 11 connected thereto, and the electrical signal is supplied to the control back 9.

The speed of the variable speed motor 7 is controlled by a signal from the dancer roller 10 so that a large tension is not applied to the wire 2 and the wire 2 does not become slack. That is, in FIG. 1, a large tension is applied to the wire rod 2,
When the dancer roller lO, which is biased downward, is pulled up above a predetermined position, the rotational speed of the variable speed motor 7 that drives the feeding machine is increased, and the amount of wire rod 2 fed out is increased. When the tension of the wire rod 2 decreases and the dancer roller 10 moves below the predetermined position, the rotational speed of the variable speed motor 7 is conversely configured to decrease.

A processing device (
In this example, an annealing electric furnace 12 is provided.

The capstan 4 is forced to rotate at a predetermined speed by a dedicated motor, and the capstan 4 is forcibly rotated at a predetermined speed by a dedicated motor.
is wound around the outer periphery of the capstan 4, and is driven in the drawing direction by frictional force. It would be convenient if the rotation speed of the capstan 40 could be changed.

The winder 5 is equipped with a variable speed motor 15 as in the case of the feeder 3.
The rotational speed of the variable speed motor 15 is controlled by the control pack 16. Winder 5
and the capstan 4 is a dancer roller 17 which is biased in a certain direction (downward in the illustrated example) by a spring, weight, etc.
is provided, and this dancer roller 17 is connected to a potentiometer 19. The dancer roller 17 swings up and down due to changes in the tension of the wire rod 2, and its vertical position is detected by a potentiometer 19 and converted into an electrical signal, which is supplied to the control back 16. When the tension of the wire rod 2 increases and the dancer roller 17 moves above the predetermined position, the rotational speed of the variable speed motor 15 that drives the winder 5 decreases, and conversely, the dancer roller 17 moves below the predetermined position. When the variable speed motor 15 moves to , the rotational speed of the variable speed motor 15 increases. In the figure, 20 is a fixed position guide roller.

Since this wire rod winding device 1 draws out the wire rod 2 from the payout machine 3 by means of a capstan 4 that rotates at a predetermined speed, the moving speed of the wire rod 2 during processing is always kept constant. Also, the dancer roller 10 swings due to the change in tension of the wire rod 2 before and after the capstan 4 that feeds out the wire rod 2.
17, the tension of the wire 2 is detected by the position of the dancer roller 10. Because of this structure, the tension of the wire rod 2 can be kept constant regardless of changes in the thickness of the two layers of wire rod wound around the spool, such as so-called thickening or thinning of the wire rod. Furthermore, since the feeding machine 3 also rotates by itself in synchronization with the winding side, there is no risk of wire breakage etc. even if the start is performed rapidly. By appropriately adjusting the force (weight of the weight, strength of the spring, etc.) that urges the dancer rollers 10.17 in a certain direction, the tension of the wire rod 2 can be kept within a preferable range.

Next, FIG. 2 shows an example in which the wire rod winding device 1 according to the present invention is used in an electrolysis device 30 for thin metal wire.
The wire rod 2 fed out from a is passed through a buffer roller 21 and a fixed-position guide roller 20, then hung on the dancer roller 10, passed through the guide roller 20 again, and then passed on to the guide roller 33.
From there, it is supplied to an electrolytic cell 31, which is a processing device. The wire rod 2 leaving the electrolytic cell 31 passes through the guide roller 20, the capstan 4, the dancer roller 17, and the guide roller 34, and is wound onto the spool 5a of the winder 5 driven by the variable speed motor 15.

In the figure, 32 is a control box, and a control pack 9.16 is housed in this box.

Further, 35 is a motor for driving the cab stan, and the rotational power of this motor is transmitted to the goo IJs 86, 86' via a belt to rotate the capstan 4. Reference numeral 37 denotes a stroke device that reciprocates the guide roller 34 in a direction perpendicular to the plane of the paper with the winding width of the spool 5a to equalize the winding thickness, and is driven by the rotational power transmitted from the pulley 36. Note that an electrolytic solution is circulated and supplied to the electrolytic cell 31 by a pump 39. In this example, dancer roller 10.
Potentiometers 11.17 each swing in the directions of arrows X and Y, and their positions are connected by connecting rods 40 and 40'.
19 and sent to control pack 9.16. Note that the dancer rollers 1° and 17 are urged in a direction against the tension of the wire rod 2 by a spring (not shown).

FIG. 8 is a circuit diagram illustrating the control circuit of the wire winding device 1, and shows the control pack CPI (SS31SSSD), CF2 (SS81MA) manufactured by Oriental Motor Co., Ltd.
-J) and CPB (SS81MA J) are used together with the company's speed control motor (variable speed motor). CPl is the cab stan drive motor M1 (
CF2 is the motor M2 for driving the winding machine (corresponding to 15 in Fig. 1) for control, and CPB is the motor M8 for driving the feeding machine (corresponding to 7 in Fig. 1). ) is a control pack for control,
CF2 and CPa correspond to 16 and 9 in FIG. 1, respectively. PB1 and PB2 are push button switches for starting and stopping, respectively, and PMI and PM2 are potentiometers (corresponding to 19.11 in FIG. 1, respectively).

As explained above, the wire winding device according to the invention is extremely superior in that it can always keep the moving speed and tension of the wire constant during the winding operation.

[Brief explanation of drawings]

FIG. 1 is a structural explanatory diagram showing one example of a wire winding device according to the invention, FIG. 2 is an external view of another embodiment, and FIG. 3 is a circuit diagram illustrating a control circuit. DESCRIPTION OF SYMBOLS 1... Wire winding device, 2... Wire rod, 3... Feeding machine, 4... Capstan, 5... Winding m, 7.15.
...Variable speed motor, 9.16...Control pack, 1o. 17... Dancer roller, 11.19... Potentiometer, 12... Processing device, 3o... Electrolytic polishing device. Patent applicant: Toho Metals Co., Ltd. Agent: Hiroshi Sugawara, patent attorney

Claims (2)

[Claims] (1) A capstan for driving the wire is provided in the intermediate part between a feeding machine that is rotated by a variable speed motor and feeds out the wire material, and a winder that is rotated by the variable speed motor and winds up the wire. A dancer roller is provided between the feeding machine and the capstan and between the winding machine and the capstan, each of which swings due to the tension of the wire, and a variable speed motor on the feeding machine side and a variable speed motor on the winding machine side are provided. A wire winding device characterized in that the rotational speed of a motor is controlled by the position of dancer rollers provided on each side. (2) The wire winding device according to claim 1, wherein the rotation speed of the capstan is variable.