JPH0137210B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding device for winding a continuously rolled wire rod.

As a conventional wire winding device, a polling type winding machine 71 shown in FIG. 1 is often used. This type of winding machine has a drum 72 for regulating the outer diameter of the coil,
A plurality of pins 73 for regulating the inner diameter of the coil arranged on a circumference concentric with the drum and a coil receiving plate 74 through which the pins pass are rotatable around a vertical axis,
The rotation speed is synchronized with the wire speed, and the wire is passed from the upper part of the drum 72 through the wire guide tube 75.
The coils are supplied into the coil housing space between the drum 72 and the pin 73, and are stacked on the coil receiving plate 74 and wound up while being bent into a coil shape. However, the following problems have recently occurred with this device. That is, the wire rod speed is increased to improve the efficiency of the rolling process, and as a result, the wire rod fed into the drum 72 at high speed sticks to the inner wall surface of the drum 72 due to centrifugal force and naturally falls downward. It is difficult to do this, and the filling rate of the coil becomes extremely poor.Additionally, in order to improve the rolling yield, the unit weight of the coil is increased and the number of turns of the coil is increased.
The only coils that can be obtained are those that are bulky and have poor winding appearance.
In addition, recently, the finish rolling temperature has been kept low to suppress the scale of rolled wire rods and make grains finer (strengthening the material), and there is also a tendency to cool the wire rods early after rolling. Due to the low temperature of the wire, springback is strong, which causes an increase in coil height and worsens the winding appearance.

This invention solves the above-mentioned conventional drawbacks,
By separating the winding of the wire into a coil forming process in which the wire is bent and a convergence process in which the formed coil is focused, heavy coils can be wound compactly at high speed, and the coil winding shape can be improved. It is an object of the present invention to provide a wire winding device that can improve the filling rate and can also wind the wire at low temperatures.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In the figure, 1 is a wire winding device, which is composed of a coil forming machine 2 and a coil converging machine 3. The coil forming machine 2 is equipped with wheels 5 that roll on rails 4 laid on a foundation, and can be moved away from above the coil converging machine 3 to the side. A short cylindrical drum 7 is rotatably supported around a vertical axis 8 by a bearing in a cylindrical portion 6a of a frame 6 that pivotally supports the wheel 5. A plurality of rollers 9 arranged on the circumference concentric with the drum 7 are rotatably attached to the frame 6 by bearings with the large diameter portion facing downward. This roller 9
A gear 10 is fixed to the upper part of the frame 6, and this gear meshes with a gear 12 fixed to the middle part of a drive shaft 11 which is rotatably attached to the frame 6 by means of a bearing. Bevel gear 15 fixed to the upper end of drive shaft 11
meshes with a bevel gear 17 fixed to the end of a driving shaft 16 rotatably attached to the frame 6 by a bearing, and this driving shaft 16 is connected to the shaft of a motor 18 attached to the frame 6. Further, a ring-shaped large gear 20 is carved on the outer periphery of the upper end of the drum 7, and a gear 20 fixed to the lower end of a shaft 21 rotatably attached to the frame 6 by a bearing is attached to this large gear.
A roller chain 25 is wound around a sprocket 23 fixed to the upper end of the shaft 21 and a sprocket 24 fixed to the drive shaft 11.
The number of teeth of each gear 10, 12, 20, 22 and sprocket 23, 24 is set so that the circumferential speed of the large diameter portion of the roller 9 substantially matches the circumferential speed of the inner surface of the drum 7. On the other hand, a spiral guide plate 26 made of cast iron or the like and centered on the axis 8 is connected to the drum 7.
A guide plate 26 is fixedly supported at the tip of a support arm 28 which is disposed like a partition wall to separate the upper and lower parts between the frame 6 and the roller 9, and which protrudes like a branch from a support 27 which is vertically fixed to the intermediate wall 6b of the frame 6. There is. This makes the fourth
As shown in the figure, the inner circumferential wall surface 7a of the drum 7, the circumscribed cylindrical surface 29 that circumscribes each roller 9, and the guide plate 26 that partitions these surfaces form a spiral shape centered on the axis 8. A passageway 30 will be formed. In addition, the helical pitch P of the guide plate 26
is larger toward the lower outlet 31 side of the molding passage 30. Further, a cooling air supply pipe 34 having a cooling air blowing port 33 extending from the inner diameter side of the guide plate 26 toward the molding passage 30 of each stage is vertically fixed to the intermediate wall 6b of the frame 6. It passes through the frame 6 and is connected to an external cooling air supply source such as a blower. Further, a wire guide pipe 35 for guiding the wire from the finishing mill passes through the outer wall of the frame 6, and the drum 7 opens from above toward the upper entrance 36 of the forming passage 30.

Next, the coil concentrator 3 is mounted on a generally disc-shaped support base 42 that pivotally supports a wheel 41 rolling on a rail 40 laid in an annular shape on a foundation, using a known polling type external drum internal pin type. It has a configuration in which a winding machine 43 is attached. A large gear 44 is engraved on the outer periphery of the support base 42, and a small gear 46 fixed to the output shaft of a motor 45 mounted on the foundation meshes with this large gear 44. The support base 42 and The entire polling type winding machine 43 supported by this is adapted to rotate around a vertical axis 47 passing through the center of the rail 40. On the other hand, in the polling type winding machine 43, a drum 50 and a plurality of pins 51 arranged on the circumference concentric with the drum are fixed to a substantially disc-shaped bottom plate 52, and holes 5 through which each pin 51 passes
A substantially disk-shaped coil receiving plate 53 having a coil receiving plate 3a is placed on the bottom plate 52 to form a coil focusing table 54. The bottom plate 52 is fixed to the upper end of a hollow shaft 56 rotatably attached to a bearing box 55 fixed to the support base 42, and the bevel gear 57 fixed to the lower end of the hollow shaft 56 is rotatably attached to the bearing box 55. The drive shaft 58 is engaged with a bevel gear 59 fixed to the end of a drive shaft 58 attached to the support base 42, and the drive shaft 58 is driven by a motor 60 attached to the support base 42. Also, the coil receiving plate 53
The upper end of an elevating shaft 62 passing through the hollow shaft 56 is fixedly connected to the elevating shaft 62, and the elevating shaft 62 is driven up and down by a known elevating drive device whose prime mover is a hydraulic cylinder (not shown) or the like. There is. 6
3 is a coil accommodating space formed between the inner wall surface of the drum 50 and a circumscribed cylindrical surface circumscribing each pin 51. Note that the vertical axis 6 which is the axis of the hollow shaft 56 and the elevating shaft 62 (that is, the axis of the focusing table 54)
4, a bearing box 55 is attached to the support base 42 so as to be displaced by an eccentric amount δ with respect to the vertical axis 47 of the support base 42.

In order to wind the wire with the device having the above configuration, the coil forming machine 2 is positioned directly above the coil converging machine 3 as shown in the second figure, and in detail, the axis 8 of the forming passage 30 is aligned with the support of the coil concentrating machine. The motors 18, 45, 6 are aligned approximately with the vertical axis 47 of the stand 42.
Perform 0 operation. The rotational speed of the motor 18 is set so that the circumferential speed of the inner circumferential wall surface 7a of the drum 7 (approximately equal to the circumferential speed of each roller 9) is approximately equal to the speed V of the wire from the wire guide tube 35. Also motor 6
0, the rotation speed is set so that the circumferential speed of the drum 50 at the average diameter position of the inner diameter of the drum 50 and the diameter of the circumscribed cylinder circumscribing each pin 51 is approximately equal to the wire speed V. Further, the rotational speed of the motor 45 is set so that the support base 42 rotates, for example, once per rotation of the drum 50.

Under the above operating conditions, the wire rod from the finishing mill is passed through the wire rod guide pipe 35 from the upper inlet 36 to the forming passage 30.
When introduced into the wire, the wire is bent by the inner peripheral wall surface of the drum 7 and each roller 9, guided downward by the guide plate 26, and formed into a coil shape. At this time, the wire is cooled by the cooling air blown out from the cooling air inlet 33 of the cooling air supply pipe 34, and its temperature drops.
The wire rod formed into a coil shape by passing through the forming passage 30 is fed into the coil accommodation space 63 of the coil focusing table 54 from the lower outlet 31, and is fed into the drum 50 which is rotationally driven in synchronization with the speed of the wire rod. The coils are focused and stacked on the coil receiving plate 53. At this time, since the wire rod is formed into a coil shape by the coil forming machine 2, there is no possibility that the wire rod will stick to the inner wall surface of the drum 50 or that the wire rod will overflow from the drum 50 in a short period of time due to the sticking phenomenon. The coil can be focused smoothly, the filling rate of the coil is high, and the winding appearance is also good.
Also, since the coiling and focusing of the wire are separated,
It is also possible to smoothly wind wire rods at low temperatures of around 700℃. After forming and converging a predetermined length of wire, the coil forming machine 2 is moved aside, the coil receiving plate 53 is raised, and the coil is taken out. Note that it is also possible to use one coil forming machine 2 for a plurality of coil concentrators 3 and to sequentially move and condense the coils in the order in which the coil concentrators are used.

In the above embodiment, the vertical axis 64 of the coil focusing table 54 rotates (revolutions) around the vertical axis 47 of the support table 42 with a radius of δ, so that the coil focusing table 54 is rotated with respect to the lower outlet 31. The rotational speed increases and decreases periodically, and the coil is distributed almost evenly within the width B of the coil housing space 63, resulting in a so-called wobbling effect, but the wire is formed into a coil shape by the coil forming machine 2. Therefore, since the frictional force with the inner wall surface of the drum 50 is small, this wobbling effect becomes particularly noticeable and the coil filling rate is further improved. If you do not need the wobbling effect,
The support stand 42 may be fixedly installed on the foundation.

In addition, in the above embodiment, since the cooling air inlet 33 for cooling the wire is built into the coil forming machine 2, the device can be made compact, and the wire can be cooled immediately after rolling, thereby reducing scale. This can achieve finer grain structure and tougher material, and also contributes to preventing sticking to the drum 50 by lowering the wire temperature, but depending on the wire material, finish rolling temperature, etc. Wind supply pipe 34
may be omitted.

Furthermore, in the above embodiment, since the helical pitch P of the guide plate 26 on the lower outlet 31 side is made larger than that on the upper side, the formed coil discharged from the forming passage 30 is given a large downward velocity into the coil focusing table 54. Although it has the advantage that it can be fed reliably, if the formed coil has low rigidity relative to its own weight, the helical pitch P may be the same in each part.

The present invention is not limited to the above-mentioned embodiments. For example, as the forming passage 30 forming member of the coil forming machine 2, a roller is used as an inner diameter guide that regulates the coil inner diameter, and an outer diameter guide that regulates the coil outer diameter. In addition to the above-mentioned outer drum and inner roller type in which a drum is used as the guide, an outer roller and inner drum type or a structure in which rollers are used for both the inner and outer guides may be used.
Similarly, the coil focusing table 54 may also have a configuration such as an outer drum inner drum type, an outer pin inner drum type, or a pin type both inside and outside, in addition to the above-mentioned outer drum inner drum type using a pin as the inner diameter reel and a drum as the outer diameter reel. Further, for taking out the coil from the coil focusing table 54, in addition to the above-mentioned lifting plate type, it is possible to adopt a structure widely used in boring type winding machines, such as a lowering drum type or a lowering pin type. Depending on the coil take-out structure, coil forming machine 2
may be fixedly installed directly above the coil concentrator 3. In addition to the cooling air described above, various fluids such as water and mist can be used as the wire cooling medium in the coil forming machine 2.

As explained above, according to the present invention, the wire rod supplied from the rolling mill is passed through a spiral forming path to be formed into a coil shape, and then converged by a coil convergence table that rotates in synchronization with the speed of the wire rod. This allows for smooth focusing on the coil focusing table, making it possible to wind heavy coils at high speed and compactly, improving the coil winding shape and filling rate, and also enabling low-temperature winding of the wire. A useful wire winding device can be provided.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of an example of a conventional wire winding device, FIG. 2 is a vertical cross-sectional view of a wire rod winding device showing an embodiment of the present invention, and FIG. A sectional view taken along line A, and FIG. 4 is a perspective view of the guide plate shown in FIG. 2. 1... Wire winding device, 2... Coil forming machine, 3
... Coil concentrator, 7 ... Drum, 8 ... Axis line,
9...Roller, 18...Motor, 26...Guide plate, 30...Forming passage, 33...Cooling air inlet,
34...Cooling air supply pipe, 35...Wire guide pipe, 4
0...Rail, 41...Wheel, 42...Support stand,
43... Polling type winding machine, 45... Motor,
47... Vertical axis, 50... Drum, 51... Pin, 53... Coil receiving plate, 54... Coil focusing table, 56... Hollow shaft, 60... Motor, 63...
Coil accommodation space, 64... Vertical axis.

Claims (1)

[Scope of Claims] 1. An inner diameter guide that regulates the inner diameter of the coil, an outer diameter guide that is arranged concentrically with the inner diameter guide and regulates the outer diameter of the coil, and a partition wall-like arrangement between the two guides. A wire guide tube that forms a spiral forming passage having a vertical axis with the spiral guide plate, and is provided on the upper side of the forming passage and guides the wire into the forming passage; A coil forming machine comprising a drive device that rotationally drives an outer guide in synchronization with the wire speed, an inner reel that regulates the inner diameter of the coil, and a reel that is arranged concentrically with the inner reel and regulates the outer diameter of the coil. A coil focusing table equipped with an outer diameter side reel and a coil receiving plate is attached to a support stand so as to be rotatable around a vertical axis.
a coil concentrator equipped with a drive device that rotationally drives the coil convergence table in synchronization with the speed of the wire material, and the forming passageway is located above the coil housing space formed between the inner reel and the outer reel. A wire winding device configured to face a lower outlet of the coil and feed the wire discharged from the lower outlet into the coil housing space. 2. The wire winding device according to claim 1, wherein the support stand is fixedly installed on the foundation. 3. The wire winding device according to claim 1, wherein the support base is rotatably mounted on the foundation around a vertical axis different from the vertical axis of the coil focusing base, and is rotationally driven by a drive device. 4. The wire winding device according to claim 1, wherein the coil forming machine is a coil forming machine equipped with a cooling fluid inlet for blowing a wire cooling fluid into the forming passage. 5. The wire winding device according to claim 1, wherein the helical pitch of the guide plate is larger on the lower exit side of the forming passage than on the upper side.