JPH0627220Y2 - Storage line drum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a wire-storing drum for temporarily storing a wire rod, and particularly, although not intended to be limited to this, a wire-drawing material drawn by a wire-drawing machine is used. The present invention relates to a wire-drawing storage wire drum which is continuously wound up and is arbitrarily paid out to a drawing device.

[Conventional technology]

Steel wire used as welding wire (eg diameter
0.8 to 2.0 mm), the wire drawn by a wire drawing machine to the required diameter is wound around a draw-and-store drum, where it is temporarily stored and then unwound from the drum roller. It is then pulled by a capstan and sent to a spool winder (for example, JP-A-51-144363). When the winding of one spool is completed, the spool winder automatically stops the winding and automatically replaces the spool, and the capstan is stopped during this period. Even when the capstan is stopped, the wire drawing operation of the wire drawing machine is continued, and the wire drawing drawn from the wire drawing machine while the capstan is stopped is stored in the wire drawing / storage wire drum. When the spool winder restarts winding and the capstan is driven, the storage wire drawing of the winding wire storage drum is sequentially drawn out,
The storage dose of the pick-up / storage line drum gradually decreases. The speeds of the spool winder and capstan are gradually increased until the stored dose of the take-up / storage wire drum reaches a predetermined small amount, and at a predetermined amount, the speeds of the spool winder and capstan are substantially constant (wire drawing). Speed). When the winding on one spool is completed, the spool winder automatically stops the winding and replaces the spool automatically. During this time, the capstan is stopped, and even if the capstan is stopped, the wire drawing machine The wire drawing operation continues, and the wire drawing / storing drum stores the wire drawing. in this way,
The wire drawing machine continuously draws wire, and the spool winder automatically holds and cuts the wire drawing after winding one spool, and automatically replaces the spool to cut the end of the wire drawing. It is connected to it and the winding on the next spool is automatically started. The wire drawn by the wire drawing machine during spool replacement is stored in the take-up / storage wire drum.

The wire drawing accumulated in the take-up / storage wire drum during the previous spool exchange must be completed before the next spool exchange.Therefore, looking at the time series average, the spool winding speed and capstan speed Is higher than the wire drawing speed of the wire drawing machine.

By the way, the storage wire is driven to rotate in the direction of releasing the storage wire by drawing the storage wire (drawing the wire at the payout portion). The capstan must be driven at the same speed as the spool winding speed, but the spool winding machine starts, speeds up, decelerates, and stops each time the spool is replaced. As the winding radius increases, the winding peripheral speed increases accordingly, so that the storage wire drum also starts, accelerates, decelerates, and so on.
The stop will be repeated. Since the wire drawing speed is normally maintained constant, the winding speed of the wire drawing into the wire storage drum is constant.

The storage drum (for example, the above-mentioned JP-A-51-144363),
A frusto-conical shape with a large diameter on the lower side and a small diameter on the upper side, the wire drawing is wound on the lower side, and is drawn by the spool winder from the upper side. Since the wire is always wound so as to bite into the bottom,
The previously wound wire is pushed upward by the newly wound wire, and since the diameter of the drum is smaller toward the upper side, the gap with the drum is larger, so that the wire easily moves to the upper side (that is, the payout side).

[Problems to be solved by the device]

When the speed of the spool winder, that is, the drawing speed of the wire drawing from the wire storage drum (that is, the rotation speed of the wire storage drum) is relatively low, the wire drawing winding shape (outer shape) of the wire storage drum becomes a coma shape. , The wire drawing from the wire storage drum is smoothly performed, but if the wire drawing speed of the wire drawing machine is increased and the speed of the spool winder is increased accordingly, the start and speed of the spool winder are increased. , The fluctuation of wire drawing speed of the wire storage drum due to deceleration and stop (acceleration, deceleration) becomes large, and the winding wire drawing shape of the wire storage drum is disturbed. It becomes a flat large diameter brim shape like
At the time of stoppage, it falls and becomes entangled in the wire drawing that is being wound up, which may cause entanglement, which easily causes wire feeding abnormalities.

An object of the present invention is to reduce wire feeding abnormality of a storage drum at a relatively high wire feeding speed.

[Means for Solving the Problems]

Between the lower flange (121f) and the upper flange (125), for storage winding of the wire rod, having a substantially cylindrical side peripheral surface, in the storage wire drum (12) rotatable about a vertical axis, The side surface is a vertical cylindrical surface or a lower flange (1
21f) an incoming wire take-up portion (122s) continuous to the upper side, a rising guide portion (122a) continuous to the upper side of the incoming wire take-up portion (122s), which is a taper surface inclined to a direction closer to the vertical axis toward the upper part, The upper part is a tapered surface that is slightly inclined in the direction closer to the vertical axis, and the storage part (12
3), and the vertical cylindrical surface or the upper part is a reverse taper surface inclined in the direction away from the vertical axis, and the storage part (12
3) and the output line portion (124) connected to the upper flange (125),
Constitute. The symbols in parentheses indicate corresponding elements in the embodiments shown in the drawings and described later.

[Action]

For example, by inserting this wire-storing drum (12) between the wire-drawing machine (8) and the spool winder (24), the wire-drawing machine (8) draws the wire-drawn wire. In the aspect in which the wire drawing machine (8) is wound up from the incoming wire winding section (122s), drawn out from the output wire section (124) of the storage wire drum (12) and supplied to the spool winding machine (24). )
The wire drawn from the upper side of the lower flange (121f) (121f
It is wound around the incoming wire winding section (122s) along the line (f). Input wire winding section
(122s) is a vertical cylindrical surface or a taper surface that is slightly inclined in the direction closer to the vertical axis toward the top, so that the wire drawing already wound there and the peripheral surface of the wire entry winding portion (122s) Although the sliding resistance between them is relatively large and the wire drawing is difficult to move to the upper side, the wire drawing machine pushes the wire drawing up to reach the rising guide portion (122a). That is, the incoming wire winding section
At (122s), since the wire drawing is relatively tightly wound, the wire drawing is wound in an orderly manner and sequentially moves upward.

Since the rising guide part (122a) is a tapered surface that is inclined largely toward the vertical axis as it goes upward, there is a larger gap with the winding surface as the wire drawing moves upward, so there is a vertical movement. It becomes easier to move to the upper side easily by the upward pulling force applied through the wire drawing on the wire drawing side, and the storage part (123)
Leading to. That is, the rising guide section (122a) is connected to the incoming wire winding section (122a).
The wire drawing pushed up from (s) is promptly moved to the storage part (123).

Since the storage part (123) is a tapered surface that is slightly inclined in a direction closer to the vertical axis toward the upper part, the wire drawing is performed by the rising guide part (122).
Although it is harder to move up than a), it moves up due to the pulling force applied to the wire drawing of the wire outgoing portion (124). Since the downward movement is more difficult than the upward movement and the taper is small, the distance that the wire drawing to the winding surface can be separated outward is small (that is, it is difficult for the wire drawing coil diameter to be large). The line is unlikely to have an extremely large diameter (Saturn's ring). as a result,
Even if the wire storage drum rotates at a relatively high speed (even if the circular force is large), the wire drawing will not spread like Saturn's ring, and the wire drawing will be loosened excessively. Disappear. The wire drawing of the storage part (123) is pulled up by the drawing force applied to the wire drawing of the wire output part (124), and moves upward to reach the wire output part (124).

Since the output wire portion (124) is a vertical cylindrical surface or an inverse taper surface inclined toward the upper part from the vertical axis of rotation, excessive upward movement and loosening of wire drawing there are prevented, and the spool winding machine is prevented. (24) is drawn by the drawing force from (24) and moves up in an orderly manner, and the drawing force acts as a rotational moment on the peripheral surface of the storage line drum (12) to rotate the storage line drum (12). Along with this, it separates from the storage line drum (12) and heads for the spool winder (24).

As a result, according to the storage wire drum (12) of the present invention, even if the storage drum (12) rotates at a relatively high speed, the wire wound around (storing wire) maintains an orderly winding shape and loosens. Since there is no drop or drop, entanglement will not occur.

Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

〔Example〕

FIG. 1 shows a wire drawing / spool winding system for a welding wire incorporating an embodiment of the present invention.

The plated wire wound around the plated wire carrier 1 is pulled out from the carrier 1 and is rolled by the roller 5 of the dancer 4.
And 6 to reach the wire drawing machine 8, where the wire is wound in a die and wound around the take-up / store wire drum 9, and then drawn out by the capstan 16 around the draw-out dancer rollers 14 and 15 of the take-up capstan 13 and the dancer roller 1
7 to 22, and is drawn into the spool winder 24 and spooled.

When the carrier 1 is replaced (new line replenishment), the tip of the plated line of the carrier to be newly replenished is welded to the end of the plated line of the carrier being fed, and the carrier is exchanged for the newly replenished line. . At this time, since the plated wire is fixed (held), the stored dose of the dancer 3 decreases and the dancer roller 6 and the weight 4 rise. When the carriage that supports the roller 6 and the weight 4 moves up to the upper limit position, the switch S4 is opened by the carriage, which stops the electric motor M3 of the wire drawing machine 8. When the above-mentioned carrier 1 is exchanged without any particular trouble, the feed stop (hold) time of the plated wire 2 is short, and the carriage that supports the roller 6 and the weight 4 within the time period is the position of the switch S4. Operation of the wire drawing machine 8 (motor M3
Rotation continues) is not interrupted. Also, when the movement of the plated wire to the dancer 3 is stopped due to a trouble such as wire entanglement between the carrier 1 and the dancer 3, the carriage that supports the roller 6 and the weight 4 rises.

Immediately after the replacement of the carrier 1 is completed and the stop (hold) of the plated wire 2 is released, or after the entanglement of the plated wire is corrected and the movement to the plated wire 2 is properly returned, the rollers 6 and The carriage that supports the weight 4 is pulled down to the position shown in FIG.

The die drawing capstan of the wire drawing machine 8 and the drawing drum 10 of the drawing / storing wire drum 9 are both driven by the electric motor M3 at the same linear velocity.

The take-up / storage line drum 9 of this embodiment is the same as the above-mentioned Japanese Patent Laid-Open No. 51-1.
The winding / drawing drum has the same structure as the winding / drawing drum disclosed in Japanese Patent No. 44363, and the winding drum 10 is driven by an electric motor M3 that drives a die drawing capstan of the wire drawing machine 8 to rotate in the forward direction and rotate. Wind up the wire drawn in 8 When wire drawing is being drawn out by the take-up capstan 13, the pulling force causes the wire storage drum 9 to rotate in a direction opposite to the winding rotation direction (forward rotation) of the drawing drum 10 (reverse rotation direction).
To do.

Winding speed of the take-up drum 10 (feeding speed of the wire drawing machine 8)
Is higher than the rewinding speed of the storage drum 12 (spool winding speed), the turn roller 11 moves in the rotation direction (normal rotation) of the take-up drum 10 [the peripheral speed of the take-up drum 10-the peripheral speed of the storage line drum 12]. ] Rotate at a peripheral speed (normal rotation). While the turn roller 11 is rotating normally like this,
The storage amount of the take-up / storage line drum 9 increases, and the amount of rotation of the roller 11 (accurately, peripheral length × number of rotations) increases.

When the winding speed of the take-up drum 10 is lower than the rewinding speed of the storage drum 12, the turn roller 11 causes the storage drum 1 to rotate.
In the rotation direction of 2 (reverse rotation), the peripheral speed of [the peripheral speed of the storage wire drum 12-the peripheral speed of the take-up drum 10] is rotated (reverse rotation).
To do. While the turn roller 11 is reversely rotating in this manner, the stored dose of the take-up / storage line drum 9 decreases,
The amount of rotation of (accurately, circumference x number of rotations) is the decrement.

The rotary encoder S3 generates one pulse A and B for each small rotation of the turn roller 11. Two
The pair of pulses A and B have a phase difference of about 90 °, and when the above-described normal rotation (stored line), the pulse A rises and the pulse B rises when it is H, and the reverse rotation (drawing). When the pulse B rises and is H, the pulse A rises. For example, flip-flops are
When the pulse B is H, the output is set (output Q = H), and when the pulse B is H, the pulse A is reset (output Q = L). Q = L indicates that reverse rotation (drawing) is being performed.
Then, the counter that counts the pulse A, Q = H
When the count up is performed and the count down is performed with Q = L, the count data indicates the stored dose (the stored dose of the collection / storage line drum 9).

The dancer roller 15 between the take-up / storage wire drum 9 and the take-up capstan 16 rises when the tension of the wire drawing increases, allowing the delivery of a larger amount of wire drawing than the wire receiving capacity, and when the tension of the wire drawing decreases. It descends and sends out a smaller amount of wire drawing than the wire drawing receiving amount, and suppresses the tension of the wire drawing within a predetermined range.

The dancer rollers 18, 20 and 22 rise as the tension of the wire drawing between the take-up capstan 16 and the spool winder 24 increases and allow a larger amount of wire drawing to be delivered than the wire drawing capacity. Is lowered, the wire drawing amount smaller than the wire drawing receiving amount is sent out, and the tension of the wire drawing is suppressed within a predetermined range.

The wire drawing from the dancer roller 21 toward the spool winder 24 is wound around the speed detection roller 23 and then toward the spool winder 24. A rotary encoder S1 for linear velocity detection is coupled to the roller 23, and generates a pulse A having a frequency proportional to the moving speed of the wire drawing drawn by the spool winder 24. A wire drawing moving speed signal (analog voltage) is obtained by frequency / voltage converting this pulse A, and wire drawing moving speed data is obtained by counting the number of occurrences of pulse A within a predetermined time. The wire drawing moving speed data can be obtained by measuring the period T _{A of the} pulse A and calculating the reciprocal thereof.

The rotary shafts of the dancer rollers 18, 20 and 22 are connected to an elevating guide 26, and the elevating guide 26 moves up and down along a vertical guide rail by an upper driving force or gravity applied to the rollers. A friction roller to which a potentiometer S2 is coupled is in contact with the vertical guide rail, and the potentiometer S2 causes the vertical guide 26 (roller 18,
An electric signal (analog voltage) that represents the vertical position P _c of (20, 22) is generated. The spool winder 24 of this system has the same configuration as that of the spool winder 24 disclosed in the above-mentioned Japanese Patent Laid-Open No. 51-144363, and is automatically set when the winding amount of one spool reaches a set value. Stop the rotation of the spool, hold (fix) the wire drawing and automatically cut it, automatically discharge the spool that has finished winding from the winding section and automatically attach an empty spool to the winding section, The tip of the drawn wire is held and the spool is driven to rotate, and a signal indicating that the spool is being replaced is generated from the time when the rotation of the spool is stopped until the time when the spool starts to rotate.

The capstan 16 is rotationally driven by the electric motor M2 so that the feed speed (peripheral speed) is equal to the wire moving speed detected by the rotary encoder S1, and the position of the dancer roller 22 detected by the potentiometer S2 is at the center. If the position shifts to the upper side, the speed is increased, and if the position shifts to the lower side, the speed is reduced. When the spool winder 24 stops drawing wire drawing for spool replacement or the like, it is stopped at the same time. Even when the spool winder 24 has stopped drawing wire, the wire drawing machine 7 is continuously driven to send out wire drawing,
The wire-storing drum 9 stores the wire-drawing, but the stored dose is detected based on the pulses A and B generated by the rotary encoder S3, and the wire-drawing machine 7 is decelerated when the stored amount increases. When the spool winder 24 starts drawing wire (restarts winding) and the winding speed increases, the winding / storage drum 9
Of the wire drawing machine 7 decreases, and the wire drawing machine 7 is accelerated accordingly.

FIG. 2 shows an enlarged view of the storage line drum 12 of the take-up / storage line drum 9. The main body of the storage line drum 12 is a body 120, and a lower flange 121f is formed at the lower end thereof. An upper flange plate 125 is fixed to the upper end of the body 120, and a lower end plate 126 is fixed to the lower end. A bearing 127 is arranged at the center of the body 120, and an upper flange plate is attached to the bearing 127.
125 and the lower end plate 126 are fixed. First
In the state shown in the drawing, the vertical rotation shaft to which the take-up drum 10 is fixed penetrates the bearing 127, and the bearing line 127 allows the storage wire drum 12 to freely rotate with respect to the vertical rotation shaft. .

On the outer peripheral surface of the body 120, an incoming wire winding portion 122 is formed of a tapered surface that is slightly inclined toward the vertical rotation axis toward the upper part.
s, a rising guide portion 122a having a taper surface that is largely inclined toward the vertical rotation axis toward the upper portion, a storage portion 123 having a taper surface that is slightly inclined toward the vertical rotation axis toward the upper portion, and a vertical cylindrical surface An outgoing line portion 124 is formed.

In this embodiment, the incoming wire winding portion 122s has a vertical width of 10 mm.
Is a conical surface having a taper angle of 1 degree 30 minutes with respect to the vertical line, the rising guide portion 122a is a conical surface having a vertical width of 20 mm and a taper angle of 7 degrees with respect to the vertical line, and the storage portion 123 is The width is 140mm and the taper angle to the vertical is 1 degree 4
It is a conical surface of 5 minutes, and the outgoing line portion 124 has a vertical width of 50 mm.
Is a cylindrical surface having a taper angle of 0 degree with respect to the vertical line.

The incoming wire winding portion 122s may be a cylindrical surface having a taper angle of 0 degrees, and the outgoing wire portion 124 may be an inversely tapered (upside down) conical surface that opens to the outside. That is, the incoming wire winding section 122s
May have a taper angle in the range of approximately 1 degree 30 minutes to 0 degrees, and the outgoing line portion 124 may be a cylindrical surface or an inversely tapered conical surface.

When the storage wire drum 12 is used in the mode shown in FIG. 1, the wire drawn from the wire drawing machine 8 is drawn by the turn roller 11 (FIG. 1) along the upper side surface 121t of the lower flange 121f. As the wire is wound, the wire winding part 122s is wound around the wire drawing part 122s so that the wire drawing part is wound up from below.
Move to 122s.

Since the incoming wire winding portion 122s is a vertical cylindrical surface or a tapered surface that is slightly inclined in a direction closer to the vertical axis as it goes upward,
The sliding resistance between the wire already wound there and the circumferential surface of the wire entry winding portion 122s is relatively large, and the wire is difficult to move to the upper side. It is pushed upward by the bite and reaches the rising guide portion 122a. That is, since the wire drawing is relatively tightly wound in the wire input winding section 122s, the wire drawing is wound in an orderly manner and sequentially moves upward.

Since the rising guide portion 122a is a tapered surface that is inclined largely toward the vertical axis as it goes upward, there is a larger gap between the winding surface and the winding surface as the wire drawing moves upward, which facilitates vertical movement. Then, it is easily moved upward by the upward pulling force applied through the wire drawing on the wire drawing side to reach the storage part 123. That is, the rising guide part 122a promptly moves the wire drawn up from the incoming wire winding part 122s to the storage part 123.

Since the storage portion 123 is a tapered surface that is slightly inclined toward the vertical axis toward the top, the wire drawing is difficult to move upward than the rising guide portion 122a, but the wire drawing force applied to the wire drawing of the wire output portion 124 is difficult. It is pulled and moves up. Since the downward movement is more difficult than the upward movement and the taper is small, the distance that the wire drawing to the winding surface can be separated outward is small (that is, it is difficult for the wire drawing coil diameter to be large). The line is unlikely to have an extremely large diameter (Saturn's ring). As a result, even if the storage drum rotates at a relatively high speed (even if the circular force is large), the wire drawing will not spread like Saturn's ring, and the wire winding will be loosened excessively. It will not be.
The wire drawing of the storage portion 123 is pulled up by the drawing force applied to the wire drawing of the wire outlet portion 124, and moves upward to reach the wire outlet portion 124.

Since the outgoing wire portion 124 is a vertical cylindrical surface or an inverse taper surface that is inclined toward the upper part in a direction away from the vertical rotation axis, excessive upward movement and loosening of the wire drawing there are prevented, and the spool winding machine 24 The pull-out force causes the storage line drum 12 to rotate upward, and the pull-out force acts on the peripheral surface of the storage line drum 12 as a rotational moment, causing the storage line drum 12 to rotate. Then, it goes to the spool winder 24.

[Effect of device]

As a result, according to the storage wire drum (12) of the present invention, even if the storage drum (12) rotates at a relatively high speed, the wire wound around (storing wire) maintains an orderly winding shape and loosens. Since there is no drop or drop, entanglement will not occur.

[Brief description of drawings]

FIG. 1 is a side view showing the system construction of a wire drawing / spool winding system incorporating a storage wire drum 12 of an embodiment of the present invention. FIG. 2 is an enlarged view of the storage wire drum 12 shown in FIG. 1, which is an embodiment of the present invention. The right half of the storage wire drum 12 is a side surface and the left half is a vertical cross section. 1: Plated wire carrier, 2: Plated wire, 3: Dancer 4: Weight, 5, 6: Dancer roller 7: Wire drawing machine, 8: Wire drawing mechanism 9: Collection / storage wire drum, 10: Collection drum 11: Turn Rollers, 12: Storage wire drum (storage wire drum) 120: Body, 121f: Lower flange (lower flange) 121t: Upper side surface, 122s: Inlet winding portion (inlet winding portion) 122a: Ascending induction portion (ascending induction portion) ), 123: Reservoir (reservoir) 124: Outgoing part (outgoing part), 125: Upper flange plate (upper flange) 126: Lower end plate, 127: Bearing 13: Take-up capstan, 14, 15: Dancer Roller 16: Capstan, 17-22: Dancer roller S1: Rotary encoder, 23: Speed detection roller 24: Spool winder, 26: Lift guide M1 to M3: Electric motor, S2: Potentiometer S3: Rotary encoder, S4: Limit switch

Claims (1)

[Scope of utility model registration request] 1. A storage wire drum having a substantially cylindrical side peripheral surface for storing and winding a wire between a lower flange and an upper flange, the storage drum being rotatable around a vertical axis. A vertical cylindrical surface or a taper surface that is slightly inclined in a direction closer to the vertical axis toward the vertical axis, a winding wire winding portion that is connected to the upper side of the lower flange, and a taper surface that is greatly inclined toward the vertical axis toward the upper portion. A rising guide part continuous to the upper side of the incoming wire winding part, a taper surface that is slightly inclined toward a direction closer to the vertical axis toward the upper part, a storage part continuous to the upper part of the rising guide part, and a vertical cylindrical surface or A storage line drum, characterized in that the storage line drum is composed of an inverted taper surface that is inclined toward a direction further away from the vertical axis toward the upper part, and the output line part is connected to the storage part and the upper flange.