JP2010125503A - Wire rod feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To minimize failure by flaws when performing deformation from a wire rod coil to an uncoiled wire rod. <P>SOLUTION: The wire rod feeding device supplies the uncoiled wire rod 51 by delivering the wire rod coil 50 and includes: a placing roll 11 which is installed extending in the horizontal direction with respect to a base 12 from the body part 10 erected on the base 12, also on which the wire rod coil can be placed and which is constituted freely rotatably so that the axial line of rotation is directed in the horizontal direction; at least one pinch roll 18 with which the wire rod coil 50 is delivered by holding the wire rod coil 50 in cooperation with the placing roll 11, and a sorting roll 22 which is installed on this side of a place where the wire rod coil 50 is held between the placing roll 11 and the pinch roll 18 and with which the wire rod 50 before delivery is sorted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wire supply device that supplies an uncoiled wire by feeding a wire coil.

  A wire product supplied from a material manufacturer is generally formed as a wire coil, and this wire coil is formed by overlapping continuous ring shapes. For this wire coil, for example, drawing processing such as drawing, straightening and cutting, forging, etc. are added to the wire processing coil, which can be finished into various products and semi-finished products. When performing such secondary processing, the wire coil is used as an uncoiled wire for secondary processing machines such as wire drawing machines, straightening and cutting machines, skin pass header machines, combined machines, etc. It is necessary to use a wire feeding device called an uncoiler for feeding after being deformed.

  In the conventional wire rod supply device, the wire coil is placed on the turntable in a vertically placed state (that is, the circumferential portion is positioned vertically and the coil body is directed vertically) The wire rod coil was fed out while rotating the turntable (for example, see Patent Document 1 below).

JP 2006-327705 A JP 2005-297035 A

  For example, in the conventional wire rod feeding device in which the wire rod coil as disclosed in Patent Document 1 is placed vertically, the wire rod coil sinks due to the own weight of the wire rod itself. In such a case, the wire rods are wound and rubbed together, resulting in a problem that many wrinkles are generated on the surface. Therefore, there has been a demand for the development of a technology that can prevent the occurrence of such wrinkles.

  On the other hand, in consideration of the problems of the conventional wire supply device, the wire coil is installed horizontally, and the wire coil can be fed out after eliminating the influence of its own weight as much as possible. Various wire rod supply devices have also been proposed (see, for example, Patent Document 2 above).

  However, the wire supply device described in the above-mentioned Patent Document 2 intends to perform posture control afterwards by using a guide member such as a guide or a ring with respect to the uncoiled wire that has been fed out. It has not been possible to reliably prevent rubbing between the wires when the coil is deformed to the uncoiled wire. Further, the idea of performing postural control on the uncoiled wire after being fed out does not leave the range of the prior art disclosed in Patent Document 1, and is representative in Patent Documents 1 and 2 above. Even when various conventional techniques are combined, there is still a lot of room for further minimizing the occurrence of defects.

  The present invention has been made in view of the above-described problems of the prior art, and the object thereof is based on a completely new concept that has not been provided in the past for a wire rod feeding device that feeds an uncoiled wire rod by feeding a wire coil. By making improvements, the object is to minimize wrinkle defects when deforming from a wire coil to an uncoiled wire, thereby improving product quality.

  The wire supply device according to the present invention is a wire supply device that supplies an uncoiled wire by drawing out a wire coil, and is installed extending in a horizontal direction with respect to the base from a body portion standing on the base. By placing the wire coil in cooperation with the mounting roll, the wire roll can be placed, and is configured to be rotatable so that the rotation axis is oriented in the horizontal direction. At least one pinch roll that feeds the wire coil, and the placement roll and the pinch roll are installed in front of the place where the wire coil is sandwiched, and the wire coil before feeding is sorted. And a sorting roll.

  According to the present invention, since the wire rod feeding device that feeds the uncoiled wire rod by feeding out the wire rod coil is improved based on a completely new idea that has not been conventionally available, the wire coil is transformed into the uncoiled wire rod. It is possible to minimize wrinkle defects. Thereby, the product quality can be improved. Further, since the production yield is improved by improving the product quality, an effect of reducing the manufacturing cost can be obtained.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  FIG. 1 to FIG. 3 are external views showing the wire supply device according to the present embodiment. In particular, FIG. 1 shows a front view, FIG. 2 shows a left side view, and FIG. 3 shows a top view. 4 and 5 are external perspective views illustrating the operation state of the wire supply device according to the present embodiment. FIG. 4 shows an external appearance from the oblique left direction, and FIG. 5 shows an external appearance from the right side. Show.

  The wire supply device according to the present embodiment is a device that supplies an uncoiled wire 51 by paying out a wire coil 50 and includes a main body 10 and a mounting roll 11 as main components. .

  The main body 10 is a member that is installed on a base 12 such as a floor of a factory building, and a leg that is securely fixed to the base 12 by using a fixing means such as an anchor bolt at the lowermost part. 13 is formed. The legs 13 maintain a stable installation state of the entire wire rod supply device. An inverter motor 14 is installed inside the main body 10. The inverter motor 14 is connected via a drive belt to a mounting roll 11 that is installed to extend in a front and horizontal direction from a position slightly above the central portion on the front side of the main body portion 10. It plays a role of realizing rotational driving of the mounting roll 11 according to the feeding speed of 50.

  An arm member 16 extending in parallel with the extending direction of the mounting roll 11 is fixedly installed below the position where the mounting roll 11 on the front side of the main body 10 is installed. A bearing 17 is installed at the tip of the arm member 16 on the side opposite to the main body, and has a function of pivotally supporting the shaft end of the mounting roll 11 on the side opposite to the main body.

  On the other hand, the mounting roll 11 is a member in which a cylindrical roll member is disposed in the horizontal direction, and is configured such that the roll axis of the roll member is directed in the horizontal direction, and the rotational roll is driven. The rotation axis and the roll axis are configured to completely overlap. In addition, since the wire coil 50 is placed horizontally on the mounting roll 11, the surface property is formed of a smooth cylindrical surface with a small coefficient of friction, and surface defects are caused with respect to the wire coil 50. The rotational driving force can be transmitted without generating it.

  The mounting roll 11 is securely supported at both shaft ends by a bearing 17 installed on the side opposite to the main body of the arm member 16 and a bearing (not shown) installed inside the main body 10. Thus, stable rotation driving is enabled by such a configuration.

  Moreover, about the mounting roll 11, not only the mounting of the wire coil 50, for example, the function as a pinch roll for paying out the wire coil 50, but also a horizontal positioning function is provided. That is, the upstream pressure contact pinch roll 18 is installed above the placement roll 11 installation position in the main body 10, and the upstream pressure contact pinch roll 18 and the placement roll 11 cooperate to make the wire coil. 50, and the wire coil 50 can be fed out.

  The upstream pressure contact pinch roll 18 can be freely changed in position in the vertical direction by the hydraulic cylinder 15 installed on the upper side thereof, and the wire of the wire coil 50 (that is, the uncoiled wire 51 that has been fed out). A pressure contact force corresponding to the diameter can be applied. On the other hand, with respect to the mounting roll 11, the rotational driving force can be transmitted to the wire coil 50 by the driving force transmitted from the inverter motor 14, and the wire coil is obtained by the combination of the pressure contact force and the rotational driving force. 50 proper payouts are realized.

  Note that, in the wire rod supply device according to this embodiment, in order to ensure an appropriate feeding force, the downstream side of the first-stage pinch roll configured by the upstream pressure contact pinch roll 18 and the mounting roll 11 is used. In addition, a pair of pinch rolls are arranged. The operation principle of the second stage pinch roll installed on the downstream side is the same as that of the first stage pinch roll, and is installed below the downstream pressure contact pinch roll 19 installed on the upper side. The downstream fixed pinch roll 20 can exert a function as a pinch roll by applying a pressure contact force and a rotational driving force to the wire coil 50, respectively.

  Furthermore, the wire rod supply apparatus according to the present embodiment has the correction roll 21 on the downstream side of the two pairs of pinch rolls described above. This straightening roll 21 is configured by arranging a total of four rolls, two at the top and two at the bottom. Further, the straightening roll 21 is configured in a staggered arrangement in which the upper and lower positions are staggered, and the straightening roll load in the vertical direction is repeatedly applied to the wire coil 50 to be threaded. While being minimized, it is possible to supply the uncoiled wire 51 having straight advancement to the next process.

  In addition, about the downstream pressure contact pinch roll 19 and the two correction | amendment rolls 21a installed upwards, the position in an up-down direction is changed with the hydraulic cylinder 15 installed above them similarly to the upstream pressure contact pinch roll 18. On the other hand, as for the downstream fixed pinch roll 20 and the two correction rolls 21b installed below, the position movement in the vertical direction is restricted and fixedly arranged like the mounting roll 11. Yes. Moreover, about the rotational drive force, the mounting roll 11 and the downstream fixed pinch roll 20 can be provided.

  Further, in the wire rod supply apparatus according to the present embodiment, all the hydraulic cylinders 15 can be digitally managed, which is much more accurate than the vernier method generally used in this type of hydraulic cylinder. Good control management is possible.

  As described above, the basic configuration of the wire rod supply device according to the present embodiment has been described. However, the wire rod supply device according to the present embodiment does not cause surface flaws in the wire rod coil 50 and performs very smooth feeding. It has the characteristics. That is, in the wire rod supply device according to the present embodiment, the sorting roll 22 is installed in front of the place where the mounting roll 11 and the upstream pressure contact pinch roll 18 sandwich the wire coil 50. As a result, the wire coils 50 before being fed can be sorted in advance.

  The sorting roll 22 is a member erected so as to extend upward from the arm member 16, and a shaft body connected to the arm member 16 and a resin-made material installed so as to surround the shaft body. And a wear-resistant member. About the abrasion-resistant member which comprises the sorting roll 22, it is comprised so that it can rotate freely around a shaft body. Therefore, the wear-resistant member according to the present embodiment rotates in accordance with the movement of the wire coil 50 by contact with the wire coil 50 that rotates. The action of the wear resistant member prevents the sorting roll 22 from wrinkling the wire coil 50. The wear-resistant member constituting the sorting roll 22 can be configured to be rotatable as in the present embodiment, but depending on conditions such as the shape of the wire coil 50 and the rotational speed, the shaft body It is also possible to adopt a fixed installation form.

  Moreover, it is preferable that the installation position of the sorting roll 22 is installed at a position that is at least closer to the main body 10 than the central position of the entire length of the mounting roll 11. In the case of the sorting roll 22 according to the present embodiment, Is installed at a position where a coil ring of about 4 to 5 turns can be sorted before the place where the mounting roll 11 and the upstream pressure contact pinch roll 18 sandwich the wire coil 50.

  Then, the wire coil 50 is pinched by the pinch rolls (11, 18) and sorted at a position of about 4 to 5 turns before being fed out, so that the coil ring of the wire coil 50 bundled in a ring shape is appropriately As a result, the adjacent coil rings are separated. The state in which the coil ring of the wire coil 50 is separated is shown in detail in FIG. 5, and referring to FIG. 5, the placing roll located on the left side of the paper surface (that is, the side opposite to the main body) from the sorting roll 22. The wire rod coil 50 on 11 is folded in a bundled state, whereas the wire rod coil 50 on the mounting roll 11 located on the right side of the drawing roll 22 (that is, on the main body side) is separated from each other by the coil ring. It can be well understood that the coil rings are separated at an appropriate distance and the adjacent coil rings are fed out toward the pinch rolls (11, 18) without contacting each other.

  If such coil ring separation is not performed, the feeding force applied by the pinch rolls (11, 18) is directly transmitted to the overlapping coil rings, and the two forces of the coil ring sorting force and the unwinding force are As a result, the wire coil 50 is caused to generate surface flaws such as rubbing flaws and pressure marks. However, as in the present embodiment, the adjacent coil rings are sorted and separated in advance by the action of the sorting roll 22, and then pinched rolls (11, 18) are sandwiched and fed out to obtain the pinch rolls (11, 11). The unwinding force according to 18) is used only for unwinding as it is, and an unnecessary load force on the wire coil 50 is not applied. Therefore, by using the sorting roll 22 according to this embodiment, it is possible to minimize wrinkle defects when the deformation from the wire coil 50 to the uncoil wire 51 is performed. In addition, by minimizing defects such as this, it is possible to improve the product quality of the uncoiled wire 51 fed to the next process, so that the manufacturing yield can be improved and the manufacturing cost can be reduced. Become.

  In the wire rod supply device according to the present embodiment, a locking roll 23 having the same configuration as the sorting roll 22 described above is further installed near the tip of the arm member 16 on the side opposite to the main body. The locking roll 23 is erected so as to extend upward from the vicinity of the tip of the arm member 16 on the side opposite to the main body, so that the wire coil 50 placed horizontally on the mounting roll 11 moves to the side opposite to the main body. That is, the wire coil 50 is a member that prevents the wire coil 50 from falling from the placement roll 11. Since the surface of the locking roll 23 is also made of a wear-resistant member such as a rotatable resin, even if it comes into contact with the wire coil 50, surface flaws are generated on the wire coil 50. There is nothing.

  Further, as a means for preventing the occurrence of surface flaws on the wire rod coil 50, it is preferable to install a wear-resistant member such as a resin at least at a location in contact with the wire rod coil 50 in the wire rod supply apparatus according to the present embodiment. . Incidentally, in the case of the wire rod supply apparatus according to this embodiment illustrated in FIGS. 1 to 5, the plate is placed against the wall surface on the front side of the main body 10 and the entry side of the pinch rolls (11, 18). The wear-resistant member is installed in the form of a shape or a roll.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment.

  For example, the number of installed pinch rolls and straightening rolls can be arbitrarily changed according to the dimensions and weight conditions of the wire coil.

  In addition, the control operation conditions of the wire supply device according to the present embodiment described above, that is, the speed at which the wire coil is transformed from the coil coil to the uncoiled wire, the conditions for the wire coil to be fed and the equipment conditions for the next process are as follows. It is possible to set appropriately according to the above.

  Furthermore, the installation position of the sorting rolls 22 and the number of coil ring turns to be sorted are not limited to the forms illustrated in FIGS. 1 to 5, and the conditions of the wire coil to be fed out are also applicable to such conditions. It is possible to set appropriately according to the situation.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

It is an external view which shows the wire supply apparatus which concerns on this embodiment, and has shown the front view especially. It is an external view which shows the wire supply apparatus which concerns on this embodiment, and has shown the left view especially. It is an external view which shows the wire supply apparatus which concerns on this embodiment, and has shown the top view especially. It is an external appearance perspective view which illustrates the operation state of the wire supply apparatus which concerns on this embodiment, and has shown the external appearance from diagonally left direction especially. It is an external appearance perspective view which illustrates the operation state of the wire supply apparatus which concerns on this embodiment, and has shown the external appearance from the right side especially.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Main-body part, 11 Mounting roll, 12 Base, 13 Leg part, 14 Inverter motor, 15 Hydraulic cylinder, 16 Arm member, 17 Bearing, 18 Upstream side pressure contact pinch roll (19 Pinch roll), 19 Downstream side pressure contact pinch roll, 20 Downstream fixed pinch roll, 21 (21a) (upper) straightening roll, 21 (21b) (lower) straightening roll, 22 sorting roll, 23 locking roll, 50 wire coil, 51 uncoiled wire.

Claims (4)

A wire supply device for supplying an uncoiled wire by paying out a wire coil,
It is installed extending from the main body portion standing on the base in the horizontal direction with respect to the base and is capable of mounting the wire coil, and is configured to be rotatable so that the rotation axis is directed in the horizontal direction. A set roll,
By pinching the wire coil in cooperation with the mounting roll, at least one pinch roll that feeds the wire coil;
A sorting roll for sorting the wire coil before the placement roll and the pinch roll are installed in front of the place where the wire coil is clamped, and before the feeding is performed,
A wire rod supply device comprising: The wire supply device according to claim 1,
The said sorting roll is installed in the position brought close to the said main-body part side from the center position of the full length of the said mounting roll at least above, The wire supply apparatus characterized by the above-mentioned. In the wire rod supply device according to claim 1 or 2,
In the vicinity of the mounting roll, an arm member installed in a horizontal direction extending from the main body is fixedly installed, and a bearing installed at the tip of the arm member on the side opposite to the main body is used for the mounting roll. The anti-body part side is pivotally supported, and
The wire supply device, wherein the sorting roll is erected so as to extend in a direction opposite to the base side when viewed from the arm member. In the wire supply device according to claim 3,
In the vicinity of the tip of the arm member on the side opposite to the main body, the wire coil placed on the placement roll is placed in an upright direction so as to extend in a direction opposite to the base side when viewed from the arm member. A wire supply device, wherein a locking roll for restricting movement toward the main body is installed.

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