JPH0381013A - Drawing device - Google Patents

Abstract

PURPOSE:To always give the optimum tension to the wire rod with a reserving means, to make a drawing speed and a taking-off speed follow up and to improve operating efficiency by controlling the taking-off speed of take-off device corresponding to the reserve quantity of wire rod which is detected with a detecting means. CONSTITUTION:The reserve quantities of reserving means 17-22 for wire rod are detected with the detecting means S2, the taking-off speed of the take-off device 23 is decelerated when it is small and is accelerated when it is large corresponding to the reserve quantity of the wire rod with a speed control means 35. Therefore, the taking-off sped is increased or decreased so as to become an adequate value to the drawing speed. Thus, not only the optimum tension is always given to the wire rod with the reserving means 17-22 but one of the drawing sped or the taking-off speed is made to follow up the other. Therefore, even if working rate is raised by increasing both speeds, the differ ence between them isn't made to be excessively large, the reserving means 17-22 are properly acted, the fluctuation of the diameter of die drawing is small and the taking-off and containing form of the wire rod with the taking-off device 23 isn't disturbed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a wire drawing device that draws a wire rod by dicing it, and in particular relates to a wire drawing machine and a wire drawing material, although the intention is not limited thereto. The present invention relates to a wire drawing device including a pail pack filling machine that accommodates the wire into a pail pack.

[Conventional technology]

For example, when manufacturing steel wire (for example, diameter 0.8 to 2.0 mm) used as welding wire, the drawn wire is diced to the required diameter and then wound around a large-capacity bobbin (for example, Publication number 60-223664).

The large-capacity bobbin is drawn into a small-capacity pail pack using a pail-pack filling machine (for example, Japanese Patent Application Laid-Open No. 144363/1983), and the pail pack filled with the drawn wire is shipped.

[Problem to be solved by the invention]

If the drawn wire drawn through a wire drawing machine is directly filled into a pail pack, the winding into a large-capacity bobbin and its unwinding can be omitted, simplifying the welding wire manufacturing process and creating a large-capacity bobbin winding facility. This improves welding wire manufacturing efficiency and reduces manufacturing costs.

In this case, since the pale pack has a small capacity.

Pail packs must be replaced in a single cycle,
The wire drawing machine is decelerated every time the pail pack is replaced.

You will have to stop and restart. If the drawing speed of the pail pack filling machine and the speed of the wire drawing machine do not match, excessive tension will be applied to the wire drawing or too little tension will be applied to the wire drawing, resulting in irregularities in the die drawn wire diameter or The coil shape etc. of the pack filling may be disturbed, and the quality of the filling wire may deteriorate. Such problems can be solved by inserting a dancer roller or other wire storage means between the wire drawing machine and the filling machine, and when the drawing speed of the filling machine is high, a large amount of drawn wire is supplied from the dancer roller. If it is low, it can be improved by storing the wire on a dancer roller and keeping the wire drawing tension approximately constant.

However, since there is a natural limit to the elevating tube + gIi (wire storage amount) of the dancer roller, the allowable speed difference between the wire drawing machine and the filling machine is relatively small. Even if you try to increase the speed of the wire machine and the filling machine, the speed difference between the two (speed difference 0 hours) exceeds the allowable speed difference (the amount of wire stored in the dancer roll), so do not increase the filling speed (that is, the wire drawing speed) too much. The problem is that it cannot be made higher. As a result, the operating efficiency of the wire drawing device is low.

An object of the present invention is to increase the operating efficiency of a wire drawing device.

[Means to solve the problem]

The wire drawing apparatus of the present invention includes: a wire drawing machine (7) that processes wire drawing with a die; a taking-off device (23) that stores the processed wire of the wire drawing machine (7); a wire drawing machine (7); It is between the collection device (23) and the collection device! When the tension of the wire due to the pulling force (23) applied to the wire is small, the amount of wire stored is increased, and when it is large, the amount of stored wire is decreased and the wire is supplied to the drawing device (23) with substantially constant tension. Means (17-22
); means (52) for detecting the amount of wire stored in the wire storage means (17-22); Decrease the take-up speed of (23), increase the speed when it becomes large,
Alternatively, in accordance with the amount of stored wire detected by the detecting means (S2), when the amount is small, the wire drawing speed of the wire drawing machine (7) is increased, and when it is large, the wire drawing speed is decelerated. Speed control means (35
) : is provided.

[Effect]

The means (S2) detects the amount of wire stored in the wire storage means (17-22), and the speed control means (35) detects the amount of wire stored when the amount becomes small corresponding to the amount of wire stored. (23) is decelerated, and when it increases, the speed is increased; or, when the amount of wire rod storage is small, the wire drawing speed of the wire drawing machine (7) is increased, and when it is large, it is decelerated. The take-up speed is relative to the wire drawing speed, or
The wire drawing speed is higher than the drawing speed.

Increase the storage amount of the storage means (17-22) to an appropriate value.

Slowed down. As a result, not only does the storage means (17 to 22) always give the optimum tension to the wire rod, but one of the wire drawing speed and take-up speed follows the other, so that they can be increased to increase operating efficiency. Even when the difference between the two speeds does not become excessive, the storage means (17 to 22) operate properly, fluctuations in the die drawing diameter are small, and the bow ripping device
(23) The wire rod collection and accommodation form is not disturbed.

Other objects and features of the invention will become apparent from the following description of an embodiment with reference to one drawing.

〔Example〕

FIG. 1 shows a side view of a mechanical section of an embodiment of the present invention, and this FIG. 1 shows a welding wire drawing/pack filling system.

The plated wire coiled around the plated wire carrier 1 is pulled out from the carrier 1, passes around the rollers 5 and 6 of the dancer 4, and reaches the wire drawing machine 7, where it is drawn into dice and sent out to the dancer rollers 17 to 22. , and is drawn into the pail pack filling machine 23 and filled into the pail pack 29 in a coiled form.

When replacing carrier l (replenishing a new line), the tip of the plating wire of the newly replenished carrier is welded to the end of the plucking wire of the carrier currently being wired, and the carrier is replaced with the newly replenished one. . At this time, since the plating wire is fixed (held), the amount of stored wire in the dancer 3 decreases, and the dancer roller 6 and the weight 4 rise. Roller 6 and weight 4
When the carriage supporting the wire rises to the upper limit position, the switch S4 is opened by the carriage, thereby stopping the electric motor M3 of the wire drawing machine 7 and the electric motor M1 of the filling machine 23. Further, even when the movement of the plating wire to the dancer 3 is stopped due to trouble such as wire entanglement between the carrier 1 and the dancer 3, the carriage supporting the roller 6 and the weight 4 rises.

Immediately after replacing the carrier 1 described above and releasing the stop (hold) of the plating line 2, or after straightening the tangles of the plating line and returning the movement to the plating line 2 properly, the rollers 6 and The carriage supporting the weight 4 is lowered to the position approximately shown in FIG.

It is driven by the die drawing capstan motor M3 of the wire drawing machine 7.

The dancer rollers 18, 20, and 22 rise when the wire drawing tension between the wire drawing machine 7 and the take-off capstan 24 of the pail pack filling machine 23 increases, and the wire is sent out in an amount larger than the amount of wire to be drawn. , and when the wire drawing tension decreases, it descends and sends out a smaller amount of wire drawing than the wire receiving amount, thereby suppressing the wire drawing tension within a predetermined range.

The rotational axes of the dancer rollers 18, 20 and 22 are connected to a lifting guide 26 which is raised and lowered along a vertical guide rail by the upper force or gravity applied to the rollers. A friction roller to which a potentiometer S2 is connected is in contact with the vertical guide rail, and the potentiometer S2 is connected to the vertical guide 26 (roller 18,
20°22) in the vertical direction [electric signal representing Pc (
(analog voltage).

The pail pack filling machine 23 of this embodiment is
It has a similar configuration to the pale pack filling machine disclosed in Japanese Patent No. 223664. When the filling amount of the pail pack 29 being filled reaches a predetermined value, the filling machine 23 is stopped, the drawn wire is cut, the pail pack is replaced, the cut end of the drawn wire is locked to it, and the filling machine 23 is restarted. will be activated.

FIG. 2 shows an outline of the configuration of an electric circuit connected to the mechanism shown in FIG. 1.

The limit switch S4 of the dancer 3 is amplified and waveform-shaped by the signal processing interface 31, and then provided to the microprocessor 35.

The wire drawing machine 7 is equipped with a motor driver for rotating/stopping the electric motor M3 and setting the speed thereof, and an operation panel for issuing these instructions. The operation panel is equipped with a microprocessor that is the main controller of the wire drawing machine 7, and this is the one that reads the input from the operation board.

The rotating shaft of the electric motor M3 (or a mechanical member interlocked therewith) has a speed feedback system that reads instructions from the central operation panel 30, gives start/stop and speed instructions to the motor driver, and controls the notification display. Tachometer FRI! 3 are combined. The motor driver refers to the speed instruction value and the detected speed of the tachometer FRE3, and controls the electric motor M so that the latter matches the former.
3 is controlled by feedback speed.

The potentiometer S2 is connected to a signal processing interface 31 of the central operation panel 30, and the position signal generated by the potentiometer S2 is amplified and level-adjusted by the interface 31 and applied to the A/D conversion input port of the microprocessor 35.

The pail pack filling machine 23 is equipped with a motor driver that rotates/stops the electric motor M1 and sets the speed, and an operation panel that gives instructions to the motor driver.

The operation panel is equipped with a microprocessor that is the main controller of the filling machine 23, which reads input from the operation board, reads instructions from the central operation panel 30, and controls the motor driver to start/stop and speed the electric motor M1. instructions,
An electric motor M that notifies the central operation panel 30 whether or not it is stopped (pail pack being replaced) and controls the notification display.
A speed feedback tachometer FREI is coupled to the rotating shaft (or a mechanical member interlocked therewith).

The motor driver refers to the speed instruction value and the detected speed of the tachometer FREI, and adjusts the speed so that the latter matches the former.
Feedback speed control is applied to electric motor M1.

The central operation panel 30 starts/stops the wire drawing machine 7, sets and controls the wire drawing speed, and starts/stops the filling machine 23, and sets and controls the drawing speed. Its main body is a microprocessor 35, to which are connected circuit elements equivalent to the electric circuits included in a normal personal computer. Note that the interface 32 is a communication interface with the host computer, and when there is an instruction from the host computer, the instruction from the host computer is executed with priority over the instruction inputted from the keyboard 39. Interface 31 also includes a communication interface for communicating with the microprocessors of wire drawing machine 7 and filling machine 23.

FIG. 3 shows the control operation of the microprocessor 35.
When the microprocessor (hereinafter referred to as CPU) 35 is powered on (step 1: hereinafter, the word step is omitted in parentheses and only the number is written), the microprocessor (hereinafter referred to as CPU) 35
Set the output port to the standby signal level, clear internal registers, timers, counters, etc. (2), and keyboard 39. It waits for input from the host computer, spool winder 24, etc.

In this embodiment, a wire drawing machine 7 and a pail pack filling machine 2 are used.
3 can be operated individually (operation for various adjustments of each machine) by operating those operation panels, and can also be operated individually by operating the keyboard 39 of the central operation panel 30. The wire drawing machine 7 and the filling machine 23 can be driven/stopped at the same time only by the central operation panel 39.

Operator's individual operation of each machine (mainly for adjustment, operation)
is performed in response to the input from the operation board 39 in the loop of step 3-4-5. When a series of processes from wire drawing to pack filling is performed continuously and automatically, the operator The wire 1 is pulled out, placed on a dancer 3, passed through a wire drawing machine 7, stretched over dancer rollers 17 to 22, and drawn into a filling machine 23, where it is drawn into a take-up capstan 24. Straightening roller 25 and take-up capstan 2
7 and insert the tip of the wire into the pail pack 29. Then, the operator drives only the wire drawing machine 7,
The dancer roller 22 is at approximately the center position P of its vertical movement range.
When the wire drawing machine 7 reaches c, the wire drawing machine 7 is stopped, and automatic operation of all machines is input on the keyboard 39 to instruct start.

When the CPU 35 reads this all-machine start in "input reading" (3) or reads the end of pale pack exchange in the filling machine 23, it first checks whether the limit switch S4 is open or closed (3-4-6-7). ), it is open (dancer roller 6 is up to the upper limit position: at this time switch S4
8), the wire drawing machine 7 and the filling machine 23 directly stop the electric motors M3 and Ml), a stop instruction is sent to the wire drawing machine 7 and the filling machine 23. Display it on the display 40 (9) and read the input again (3).
).

If the limit switch S4 is closed, the CPU 35 proceeds from step 7 to step 10, converts the position signal of the potentiometer S2 from analog to digital, reads it, and determines whether or not the second position 11Pd is within the appropriate value range at the start. Check (10),
When the value is outside the optimum range, there is a lack of stored radiation (dancer
The error (incorrect position of roller 22) is displayed on the display 40 and the process returns to input reading (3).

When the position [Pd of the dancer roller 22 is within the appropriate value range, the CPU 35 gives the wire drawing machine 7 a rotational speed Vsg corresponding to the specified wire drawing speed and a start instruction signal (12
), gives the pail pack filling machine 23 a rotational speed Vss that brings about a drawing speed equal to the specified wire drawing speed and a start instruction signal (13).

Upon receiving these instructions, the wire drawing machine 7 and the filling machine 23 perform startup control of the electric motors M3 and Ml and constant speed control to the instructed speed.

The CPU 35 then connects the host computer, keyboard 3
9 and the pale pack filling machine 23, and while the limit switch S4 is closed, "Speed control J (15) of the filling machine 23 is repeatedly executed at a predetermined period (1)".
(Repeat steps 5 to 18).

FIG. 4 shows the contents of "Speed control J of the filling machine 23 (15)".
The data is converted to D and read to obtain data indicating the position [Pd] of the dancer-roller 22 (151). next.

Referring to the speed register data, Vro = V58-K・(Pd-Pc)...
・Calculate (1) (152), send data indicating this speed Vro to filling v & 23, and give a start instruction (153). In the above equation (1), Vss is the same drawing speed as the wire drawing speed. Pc is the rotational speed of the electric motor M1 that provides the speed, Pc is the center position of the dancer roller 22 within the set lifting range, and Pd is the current position. In addition,
For both Pd and Pc, the lower limit position of the set lifting range is the base point (
origin), and when it is above it, it has a value of 10.

If -(Pd-Pc) is positive, the dancer roller 22 is located below the center position, and if -(Pd-Pc) is negative, the dancer roller 22 is located above the center position. has a positive coefficient.

The speed Vro calculated by the above formula (1) is instructed to the filling @ 23, and the electric motor M1 of the filling machine 23 rotates at this speed Vro, so that the wire drawing drawing speed of the filling machine 23 is approximately For example, when the dancer roller 22 is at the central position 1iPc.

-K・(Pd −Pc)=O, so the filling machine 23
The wire drawing speed of is equal to the wire drawing speed of the wire drawing machine 7.

More specifically, according to the above equation (1), the dancer roller 2
A speed correction corresponding to the vertical position 11Pd of 2 is added. That is, when the dancer roller 22 falls below the center position Pc, -K. Rise.

When the dancer roller 22 rises above the center position Pc, -K
- (pd-Pc) becomes negative, the commanded speed Vro decreases, and the dancer roller 22 descends toward the center position Pc.

By repeating the above-mentioned speed control J (15) of the filling machine 23 at regular intervals, the dancer roller 22 is moved to the center position P.
The wire drawing speed of the filling machine 23 is increased when descending from the center position Pc, and is lowered when rising from the center position Pc, so that the wire drawing speed of the filling machine 23 (Vro vs. J5) The speed is adjusted to be substantially the same as the wire speed, and the dancer rollers I7 to I22 suppress tension fluctuations during wire drawing due to errors in the wire drawing speed and drawing speed of the wire drawing Ia7 and the filling machine 23. , large tension fluctuations do not appear.

Therefore, the wire drawing speed can be set high. Even if there is an error in the wire drawing speed specification and speed control of the filling machine 23 and the wire drawing speed specification and speed control of the wire drawing machine 7, this error is automatically corrected and the dancer roller 22 is placed at the most advantageous position for storing and dispensing wire for tension adjustment. This also makes it possible to set the wire drawing speed of the wire drawing machine 7 even higher.

When the pail pack filling machine 23 replaces the pail pack, it gives a signal indicating this to the CPU 35 and stops drawing the wire. Upon receiving this signal, the CPU 35 proceeds to ``input reading'' (3) to read the pale pack exchange, proceeds to ``processing for r persons'' (5), and stops the wire drawing machine 7 there. Then, in "Read Input" (3), wait until the pale pack exchange is finished (the pale pack filling machine 23 sends a ready message), and when it is finished, proceed to step 7 and onwards, and close the limit switch S4. If so, start up the wire drawing machine 7. 12) Instruct the filling machine 23 to start up (13).

FIG. 5 shows a modified part of another embodiment of the present invention.

This alternative embodiment includes dancer rollers 22 in position 11.
The speed of the wire drawing machine 7 is adjusted according to Pd,
The speed control J (15V) of the wire drawing machine 7 shown in FIG. 5 is the speed control J (15V) of the filling machine 23 shown in FIGS.
This is executed in place of (15). Referring to FIG. 5, in this other embodiment, when proceeding to ``speed control of the wire drawing machine 7'' (15V), the CPU 35 converts the position signal of the potentiometer S2 from analog to digital and reads it.

Obtain data indicating 11Pd of dancer roller 22 (
151V), then refer to the speed register data and calculate Vso=Vts+K・(Pd−Pc)”・
(2) is calculated (152V), data indicating this speed Vso is sent to the wire drawing machine 7, and a start instruction is given (
153v), the filling machine 23 is sent speed data and a start that bring about a drawing speed equal to the designated wire drawing speed (153v).
54V).

In the above equation (2), Via is the rotational speed of the electric motor M3 that brings about the specified wire drawing speed.

Pc is the center position of the dancer roller 22 within the set lifting/lowering range, and Pd is the current position. It should be noted that both Pd and Pc have a value of 10 when they are above the lower limit position of the set lifting range. (Pd-P
If c) is positive, the dancer roller 22 is above the center position, and if c) is negative, the dancer roller 22 is below the center position. has a positive coefficient.

The speed Vso calculated by the above formula (2) is instructed to the wire drawing machine 7, and the electric motor M3 rotates at this speed Vso, so that the wire drawing speed of the wire drawing machine 7 is approximately the drawing speed of the filling machine 23. For example, when the dancer roller 22 is at the center position Pc, K(Pd-Pc)=O, so the wire drawing speed of the wire drawing machine 7 is adjusted to a speed equal to the specified wire drawing speed. It is equal to the retraction speed of machine 23.

More specifically, according to the above equation (2), the dancer roller 2
A velocity correction corresponding to 2 vertical positions 1 iPd is added. That is, when the dancer roller 22 falls below the center position Pc, K・(Pd-Pc) becomes negative, the commanded speed Vso to the wire drawing machine 7 becomes lower, and the dancer roller 22 moves toward the center position 1iPc. Rise. When the dancer roller 22 rises above the center position [Pc], K.(Pd-Pc) becomes positive, the commanded speed Vso increases, and the dancer roller 22 descends toward the center position wPc.

By repeating the speed control J (15V) of the wire drawing machine 7 at regular intervals as described above, the dancer roller 22 is brought to the central position cP.
The wire drawing speed of the wire drawing machine 7 is lowered when descending from the center point 11Pc, and increased when the wire descends from the center position 11Pc. The upper speed is adjusted to the same speed, and the dancer rollers 17 to 2
2 suppresses tension fluctuations during wire drawing due to errors in the wire drawing speed and drawing speed of the wire drawing machine 7 and the filling machine 23, so large tension fluctuations do not appear during the wire drawing.

Therefore, in this embodiment as well, the wire drawing speed can be set high. Even if there is an error in the wire drawing speed specification and speed control of the filling machine 23 and the wire drawing speed specification and speed control of the wire drawing machine 7, this error is automatically corrected and the dancer roller 22 is placed at the most advantageous position for storing and dispensing wire for tension adjustment. This also makes it possible to set the wire drawing speed of the wire drawing machine 7 even higher.

Since there is a limit to the wire storage capacity of the dancer roller 22, when the wire storage amount reaches the limit, wire drawing must be stopped. 7 speed control J(15V)L: When the amount of wire storage is large, the drawing speed of the filling machine 23 is set high or the wire drawing speed of the wire drawing machine 7 is set low.

When the amount of wire stored is small, the drawing speed of the filling machine 23 is set low or the wire drawing speed of the wire drawing machine 7 is set high. As a result, the amount of wire stored in the dancer rotella 22 is always maintained at an appropriate value, so the wire drawing speed of the wire drawing machine 7 is set as high as possible, and wire drawing and spool winding can be performed with high time efficiency. sell.

When the plated wire of the plated wire carrier 1 is running low, the operator holds the terminal end of the plated wire in a fixture, welds the tip of the plated wire of a new plated wire carrier to the terminal end, and replaces the carrier.

At this time, the hook line will not move to dancer 3, so
Although the dancer roll 6 and the weight 4 of the dancer 3 rise, if there is no problem with the above-mentioned carrier exchange, the carrier exchange is completed and the hold of the fixture is released by the time the limit switch S4 is opened. Therefore, the wire drawing machine 7 will not stop when replacing the carrier, and even if the wire drawing machine 7 gets tangled or there is a problem when replacing the carrier,
When the roll 6 and the weight 4 rise to the limit position.

The switch S4 opens, thereby directly cutting off the power to the electric motor M3 of the wire drawing machine 7, and in response to the opening of the switch S4 (18), the CPU 35 sends " 21) and display 4.
0 indicates a blind wire supply abnormality (22).

When a stop instruction is input from the keyboard 39 or the host computer, the CPU 35 returns to "input reading" (3) and performs processing corresponding to the input (in this case, stopping automatic operation) (5).

〔Effect of the invention〕

As described above, according to the present invention, the wire storage means (17 to 22
) is detected by the means (S2) and the speed control means (3
5) corresponds to the amount of wire rod storage, and when it becomes small, the drawing speed of the drawing device (23) is reduced, and when it increases, the speed is increased, or when the amount of wire rod storage is small, the drawing speed of the drawing device (23) is reduced. The wire drawing speed of the machine (7) is increased, and when it is too high, it is decelerated, so that the wire drawing speed is higher than the wire drawing speed, or the wire drawing speed is higher than the wire drawing speed of the storage means (17 to 22). The storage amount is increased and decelerated to an appropriate value.

As a result, not only does the storage means (17 to 22) always give the optimum tension to the wire rod, but one of the wire drawing speed and take-up speed follows the other, so that they can be increased to increase operating efficiency. Even when the difference between the two speeds does not become excessive, the storage means (17 to 22) operate properly, the variation in the die drawing diameter is small, and the wire rod receiving and storing form of the receiving bag [(23) is disturbed. Not done.

[Brief explanation of drawings]

FIG. 1 is a side view showing the configuration of a mechanical section of an embodiment of the present invention. FIG. 2 is a block diagram showing the system configuration of an electrical system connected to the mechanical section shown in FIG. 1. FIG. 3 is a flowchart showing the control operation of the microprocessor 35 shown in FIG. FIG. 4 shows the "speed control J (1) of the filling machine 23" shown in FIG.
5) is a flowchart showing the contents of step 5). FIG. 5 is a flowchart showing only the modified part of another embodiment of the present invention.

Claims (2)

[Claims] (1) A wire drawing machine that processes the wire by drawing it with a die; A pulling device that stores the processed wire of the wire drawing machine; A pulling force that the pulling device applies to the wire between the wire drawing machine and the pulling device; a wire storage means that increases the amount of wire stored when the tension of the wire rod is small, and decreases the amount of stored wire when it increases, and supplies the wire to the take-off device with substantially constant tension; detecting the amount of wire stored in the wire storage means; means; and a wire drawing comprising a speed control means for reducing the drawing speed of the drawing device when the amount of stored wire detected by the detecting means is small, and increasing the drawing speed when the amount is large. Device. (2) A wire drawing machine that processes the wire drawing process with a die; a pulling device that stores the processed wire of the wire drawing machine; a pulling force that the pulling device applies to the wire between the wire drawing machine and the pulling device; a wire storage means that increases the amount of wire stored when the tension of the wire rod is small, and decreases the amount of stored wire when it increases, and supplies the wire to the take-off device with substantially constant tension; detecting the amount of wire stored in the wire storage means; means; and speed control means for increasing the wire drawing speed of the wire drawing machine when the amount of stored wire rod is detected by the detecting means when the amount is small, and decelerating when the amount is large. Equipped with wire drawing equipment.