JP4673114B2 - Wire rod feeder and wire rod feeding method - Google Patents

Description

  The present invention relates to a wire rod feeding device and a wire rod feeding method, and more particularly to a wire rod feeding device and a wire rod feeding method for feeding a wire rod fed while rotating around an axis from a wire rod feeding means to the next process.

  Conventionally, a wire supply device and a wire supply method for supplying a wire sent from a wire sending means to the next process are known.

  Hereinafter, this type of wire rod supply device and wire rod supply method will be described with reference to a manufacturing process of a carcass ply used for a pneumatic tire for a vehicle.

  Generally, a carcass ply is used for a pneumatic tire for a vehicle, and a plurality of constant length wires are implanted in the carcass ply (see, for example, Patent Document 1).

  The wire supply device and the wire supply method used for the carcass ply will be briefly described. For example, in the example described in Patent Document 1, a plurality of thread-like elements supplied from a reel are arranged in an extrusion molding machine. The strip-like element as a wire is formed by applying the rubber coating to the plurality of thread-like elements.

  Then, the tip of the strip-shaped element is gripped by the first gripping member that cannot rotate about the axis, and the gripping member is slid in this state so that the strip-shaped element having a predetermined length is pulled out from the extruder. ing.

Subsequently, the rear end portion of the strip-shaped element drawn out to a predetermined length is gripped by the second gripping member, and the space between the strip-shaped element extrusion molding machine and the second gripping member is cut by the wire cutting member. Thus, a strip-like length as a constant length wire which is a constituent element of the carcass ply is formed.
Japanese Patent Laid-Open No. 11-254906 (FIGS. 1 to 6)

  However, in the example described in Patent Document 1, for example, when a strip-like element is formed by twisting a plurality of thread-like elements, the strip-like element is sent out while rotating around an axis.

  However, as in the example described in Patent Document 1, in the configuration in which the tip end portion of the strip-shaped element is simply gripped by the first gripping member that cannot rotate around the axis, the strip-shaped element is allowed to rotate around the axis. There is a disadvantage that the tip of the strip-shaped element cannot be positioned in the delivery direction.

  Here, in order to allow positioning of the leading end portion of the strip-shaped element in the delivery direction while allowing rotation of the strip-shaped element around the axis, a first gripping member for gripping the leading end portion of the strip-shaped element is provided. It is conceivable to make the structure rotatable about an axis.

  However, in order to configure the first gripping member that grips the distal end portion of the strip-shaped element to be rotatable around the axis, a chuck portion (for example, a gripping portion for gripping the distal end portion of the strip-shaped element on the first gripping member) It is necessary to add a configuration (for example, a bearing or the like) that allows the chuck portion to rotate around the axis after providing a movable claw or a movable hand. Therefore, there is a problem that the structure of the first holding member is complicated.

  Further, in the example described in Patent Document 1, an extrusion molding machine is used to cut a strip-shaped element to form a strip-shaped length until the strip-shaped length is arranged on an annular support. You have to wait for the state element to be sent out.

  Therefore, there is an inconvenience that the supply efficiency is lowered by stopping the feeding of the strip-shaped element from the extruder.

  In addition, as shown in Patent Document 1, when a strip-like length as a constant length wire is formed by cutting a strip-like element sent from an extrusion molding machine, the strip-like length is accurately formed. Need to be done.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to send out a wire with a simple configuration while allowing rotation around the axis of the wire sent while rotating around the axis from the wire feeding means. An object of the present invention is to provide a wire rod supply device and a wire rod supply method capable of positioning a tip portion in a wire rod feeding direction.

  Another object of the present invention is to provide a wire supply device and a wire supply method capable of forming a constant length wire with high accuracy.

  Furthermore, still another object of the present invention is to provide a wire supply device and a wire supply method capable of improving the supply efficiency of the constant length wire to the next process.

  In order to solve the above-mentioned problem, the wire supply device according to claim 1 is a wire supply device for supplying a wire fed to a next process while being rotated around a shaft from a wire delivery means, wherein the wire is supplied. The supply device has a magnetic attracting means arranged coaxially with the feeding tip of the wire fed while rotating around the axis from the wire feeding means, and the feeding tip of the wire is arranged by the magnetic attracting means. A tip holding portion that moves in the wire feeding direction in a state of being held while allowing rotation around the axis of the wire by adsorbing is provided.

  Next, the operation of the wire supply device according to claim 1 will be described.

  The wire supply device according to claim 1 further includes a magnetic attracting means arranged coaxially with a feeding tip portion of the wire sent while rotating around the axis from the wire sending means. A tip holding portion is provided that moves in the wire feed direction in a state where the feed tip is held while allowing rotation around the axis of the wire.

  Therefore, even when the wire rod is sent while rotating around the axis from the wire rod feeding means, the wire rod is allowed to rotate around the axis by being attracted and held by the magnetic attracting means of the tip holding portion. .

  Then, the leading end portion of the wire rod is moved in the wire rod feeding direction in a state where the rotation around the axis of the wire rod is permitted by the movement of the tip holding portion in the wire rod feeding direction.

  Thus, according to the wire supply device of the first aspect, it is possible to position the wire feed tip in the wire feed direction while allowing rotation around the axis of the wire.

  In addition, according to the wire supply device of the first aspect, since the wire tip is held by the magnetic attracting means, the chuck portion (the tip holding portion is configured to be rotatable using a bearing or the like). For example, there is no need to provide a movable claw or a movable hand. Thereby, it becomes possible to make a front-end | tip holding | maintenance part a simple structure.

  The wire rod supply apparatus according to claim 2 is the wire rod supply device according to claim 1, wherein the tip holding portion moves in the wire rod feeding direction at the same speed as the wire rod feeding speed sent from the wire rod feeding means. It is characterized by that.

  Next, the operation of the wire supply device according to claim 2 will be described.

  In the wire rod supply device according to claim 2, the tip holding portion moves in the wire feed direction at the same speed as the wire feed rate sent from the wire feed means, so that the wire rod is between the tip holding portion and the wire feed means. Is prevented from occurring.

  Therefore, even when the constant length wire is formed by cutting the wire at a position between the tip holding portion and the wire feeding means, the constant length wire can be formed with high accuracy.

  The wire supply device according to claim 3 is the wire supply device according to claim 1 or 2, wherein the wire supply device is fed from the wire feed means and the delivery tip is held by the tip holding part. A wire rod cutting section that cuts the formed wire rod at a predetermined length to form a constant length wire rod, and the wire rod feeding means side than the tip holding portion is provided, and the tip end holding portion holds the feeding tip portion A rear end holding portion that holds the delivery rear end side of the fixed-length wire rod, and a state that is provided on the wire feeding means side of the rear end holding portion and is held by the tip holding portion and the rear end holding portion And an auxiliary tip holding portion for holding a sending tip portion of the next wire sent from the wire sending means, following the constant length wire fed in step (1).

  Next, the operation of the wire supply device according to claim 3 will be described.

  The wire rod feeding device according to claim 3, wherein the wire rod feeding unit that is fed from the wire rod feeding unit and is held by the tip holding unit is cut at a predetermined length to form a constant length wire rod. Is provided.

  Therefore, a constant-length wire can be formed by cutting the wire that has been delivered from the wire delivery means and whose delivery tip is held by the tip holding part, at a predetermined length by the wire cutting part.

  Further, in the wire supply device according to claim 3, the wire supply device is provided closer to the wire feed means than the tip holding portion, and holds the sending rear end side of the constant length wire rod with the sending tip held by the tip holding portion. An end holding part is provided.

  Therefore, even when the fixed length wire is formed by cutting the wire that is sent from the wire sending means and the sending tip is held by the tip holding part with a predetermined length by the wire cutting part, this rear end holding part By holding the rear end side of the constant-length wire, the rear end side of the constant-length wire can be prevented from falling.

  Further, in the wire rod supply device according to claim 3, following the fixed length wire rod that is provided closer to the wire rod feeding means than the rear end holding portion and is conveyed while being held by the front end holding portion and the rear end holding portion. An auxiliary tip holding portion for holding the sending tip portion of the next wire sent from the wire sending means is provided.

  Therefore, even when the next wire is sent from the wire feeding means following the fixed length wire conveyed while being held by the tip holding portion and the rear end holding portion, the next wire is sent out by the auxiliary tip holding portion. By holding the tip, it is possible to prevent the leading tip of the next wire rod from falling.

  The wire rod supply device according to claim 4 is the wire rod supply device according to any one of claims 1 to 3, wherein the tip holding portion and the rear end holding portion hold the constant length wire rod. The auxiliary tip holding part moves in the wire feeding direction while holding the sending tip of the next wire sent from the wire feeding means.

  Next, the operation of the wire supply device according to claim 4 will be described.

  In the wire supply device according to claim 4, since the leading end holding part and the rear end holding part move in the wire sending direction while holding the constant length wire, the next wire in the wire sending direction of the wire sending means is thereby obtained. Is formed.

  Therefore, the wire rod feeding means can continuously feed the next wire rod toward the space formed in the wire rod feeding direction of the wire rod feeding means.

  Even when the next wire is continuously sent out from the wire sending means in this way, the sending tip of the next wire is moved in the wire sending direction while being held by the auxiliary tip holding part. .

  Therefore, according to the wire rod supply apparatus of the fourth aspect, it is possible to continuously feed the next wire rod from the wire rod feeding means without waiting for the return of the leading end holding portion and the trailing end holding portion.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire.

  The wire supply device according to claim 5 is the wire supply device according to claim 4, wherein the tip holding portion and the rear end holding portion are faster than a moving speed of the auxiliary tip holding portion in the wire feeding direction. The fixed length wire is transported by moving in the wire feeding direction at a speed.

  Next, the effect | action of the wire supply apparatus of Claim 5 is demonstrated.

  In the wire rod supply device according to claim 5, the tip holding portion and the rear end holding portion move in the wire feeding direction at a speed faster than the moving speed of the auxiliary tip holding portion in the wire feeding direction, and convey the fixed length wire rod. .

  Therefore, compared to the case where the front end holding part and the rear end holding part move in the wire sending direction at the same speed as the moving speed of the auxiliary tip holding part in the wire sending direction, the fixed length wire is transported. The time required for conveyance can be shortened.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire rod.

  The wire supply device according to claim 6 is the wire supply device according to any one of claims 3 to 5, wherein the auxiliary tip holding portion is sent out while rotating around the shaft from the wire sending device. The next wire rod is moved in the wire rod feeding direction at the same speed as that of the next wire rod while holding the leading end portion of the next wire rod while allowing rotation around the axis of the next wire rod. .

  Next, the effect | action of the wire supply apparatus of Claim 6 is demonstrated.

  In the wire supply device according to claim 6, the auxiliary tip holding portion holds the sending tip of the next wire sent while rotating around the axis from the wire sending means while allowing rotation around the axis of the next wire. In this state, it moves in the wire feed direction.

  Therefore, even when the next wire is sent while rotating around the axis from the wire sending means, the leading end of the next wire can be positioned in the wire sending direction while allowing rotation of the next wire around the axis. Is possible.

  Further, in the wire rod supply device according to claim 6, since the auxiliary tip holding portion moves in the wire rod feeding direction at the same speed as the next wire rod feeding speed, the next between the auxiliary tip holding portion and the wire rod feeding means is The loosening of the wire is prevented.

  Accordingly, the feeding tip portion of the next wire held by the auxiliary tip holding portion is held by the tip holding portion, and the next wire is cut at a position between the tip holding portion and the wire sending means. Even when the fixed length wire is formed, it is possible to prevent the next wire from being loosened between the tip holding portion and the wire feeding means.

  This makes it possible to accurately form the next constant length wire.

  The wire rod supply device according to claim 7 is the wire rod supply device according to any one of claims 3 to 6, wherein the wire rod supply device is preliminarily provided by the leading end holding portion and the trailing end holding portion. A transfer unit is provided that receives the fixed length wire conveyed to a predetermined position and transfers it to the next process.

  Next, the effect | action of the wire supply apparatus of Claim 7 is demonstrated.

  The wire supply device according to claim 7 is provided with a transfer unit that receives the constant length wire conveyed to a predetermined position by the front end holding unit and the rear end holding unit and transfers it to the next process.

  Therefore, the fixed length wire conveyed to a predetermined position by the front end holding part and the rear end holding part can be supplied to the next process by the transfer part.

  Further, while the constant length wire is being transferred to the next step by the transfer unit, the front end holding portion and the rear end holding portion can be shifted to preparation for forming the next constant length wire.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire.

  The wire rod supply apparatus according to claim 8, wherein the tip holding portion is configured to move the auxiliary wire while the constant length wire rod is transferred to the next process by the transfer portion. It moves to the position which adjoins a front-end | tip holding | maintenance part to a direction opposite to a wire sending direction, It is characterized by the above-mentioned.

  Next, the effect | action of the wire supply apparatus of Claim 8 is demonstrated.

  9. The wire rod supply device according to claim 8, wherein the tip holding portion moves in a direction opposite to the wire feeding direction to a position adjacent to the auxiliary tip holding portion while the fixed length wire rod is transferred to the next process by the transfer portion. To do.

  Therefore, compared to the case where the tip holding part moves to a position adjacent to the auxiliary tip holding part after the transfer of the constant length wire to the next process is completed, the process proceeds to preparation for forming the next constant length wire. The timing to do can be advanced.

  Thereby, it is possible to improve the supply efficiency to the next process of a fixed length wire.

  The wire rod feeding device according to claim 9 is the wire rod feeding device according to claim 7 or claim 8, wherein the auxiliary tip holding portion is moved while the constant length wire rod is transferred to the next step by the transfer portion. Is also characterized in that it moves in the wire feed direction while holding the leading end of the next wire.

  Next, the effect | action of the wire supply apparatus of Claim 9 is demonstrated.

  10. The wire rod supply device according to claim 9, wherein the auxiliary tip holding portion moves in the wire feed direction while holding the feed tip portion of the next wire rod while the constant length wire rod is transferred to the next step by the transfer portion. To do.

  Therefore, while the constant length wire is transferred to the next process by the transfer unit, even if the next wire is continuously sent from the wire sending means, the sending tip of the next wire is held by the auxiliary tip holding part. In this state, it is moved in the wire feeding direction.

  Thus, according to the wire supply device of the ninth aspect, it is possible to continuously send the next wire from the wire sending means while the constant length wire is transferred to the next process by the transfer unit. Become.

  Thereby, it becomes possible to further improve the supply efficiency of the constant length wire rod to the next process.

  In particular, when the constant-length wire is transferred to the next step by the transfer unit as described in claim 9, the tip of the next wire is moved in the wire-feeding direction. When the holding portion moves to a position adjacent to the auxiliary tip holding portion, the moving distance of the tip holding portion to a position adjacent to the auxiliary tip holding portion can be reduced.

  Thereby, since the time required to start the movement of the next wire in the wire feeding direction can be shortened, the supply efficiency of the constant length wire to the next process can be further improved.

  In order to solve the above problem, a wire rod supply method according to claim 10 is a wire rod supply method for supplying a wire rod fed while rotating around a shaft from a wire rod feeding means to the next step. The wire supply method includes the step of adsorbing the delivery tip of the wire with magnetic attracting means arranged coaxially with the delivery tip of the wire sent while rotating around the axis from the wire delivery means. It includes a tip end moving step of moving in the wire feeding direction in a state where the wire rod is held while being allowed to rotate around the axis.

  Next, the operation of the wire rod supply method according to claim 10 will be described.

  The wire supply method according to claim 10, wherein the wire leading end is attracted by a magnetic attracting means arranged coaxially with the wire leading end fed while rotating around the axis from the wire sending means. Thus, a tip end moving step is included in which the wire is moved in the wire feeding direction while being held while allowing rotation around the axis of the wire.

  Therefore, even when the wire rod is sent while rotating around the axis from the wire rod feeding means, the wire rod feeding tip is attracted and held by the magnetic attracting means arranged coaxially with the wire feeding tip portion, so that the wire rod is rotated around the axis. Can be allowed to rotate.

  Then, in the tip end moving process, the tip end portion of the wire rod is moved in the wire rod feeding direction in a state where the rotation around the axis of the wire rod is allowed.

  Thus, according to the wire rod supply method of the tenth aspect, it is possible to position the wire feed tip in the wire feed direction while allowing rotation around the axis of the wire rod.

  Further, according to the wire rod supply method of the tenth aspect, since the wire feeding tip is held by the magnetic attracting means, the wire rod feeding tip is held so as to be rotatable using a bearing or the like. There is no need to use a chuck portion (for example, a movable claw or a movable hand). Thereby, it becomes possible to make the member holding the sending tip of the wire rod simple.

  The wire rod supply method according to claim 11 is the wire rod supply method according to claim 10, wherein the wire rod is fed at the same speed as the wire rod feed rate sent from the wire rod feed means in the tip end moving process. It is characterized by moving the delivery tip of the wire in the wire delivery direction.

  Next, the operation of the wire rod supply method according to claim 11 will be described.

  In the wire supply method according to claim 11, the wire feed tip is moved in the wire feed direction at the same speed as the wire feed rate sent from the wire feed means in the tip part moving process. It is possible to prevent the slack from occurring in the wire delivered from the means.

  Therefore, even when a constant length wire is formed by cutting the wire sent from the wire sending means, the constant length wire can be formed with high accuracy.

  The wire rod supply method according to claim 12 is the wire rod supply method according to claim 10 or claim 11, wherein the wire rod supply method is configured such that the feed tip is moved in the wire feed direction in the tip portion moving stroke. A constant-length wire forming step of forming a fixed-length wire by cutting the moved wire at a predetermined length, and a sending front end portion and a sending rear end side of the constant-length wire formed in the constant-length wire forming step The constant length wire is transported in the wire feeding direction while holding the wire, and moved in the wire feeding direction while holding the leading end of the next wire sent from the wire feeding means following the constant length wire. And a wire rod conveyance process to be performed.

  Next, the operation of the wire supply method according to claim 12 will be described.

  In a wire rod supply method according to a twelfth aspect of the present invention, a constant length wire rod is formed by cutting a wire rod having a feed tip portion moved in the wire rod feed direction in the tip portion moving stroke to a predetermined length. A long wire forming process is included.

  Therefore, it is possible to form a constant length wire by cutting the wire rod having the feed tip portion moved in the wire feed direction in the tip portion moving stroke by a predetermined length.

  Further, in the wire rod supply method according to claim 12, the constant length wire rod is conveyed in the wire rod feeding direction while holding the leading end portion and the trailing end portion of the constant length wire rod formed in the constant length wire forming step. The wire conveyance process to be performed is included.

  Therefore, even when the constant length wire is formed by cutting the wire at a predetermined length in the constant length wire forming step, the constant length wire can be conveyed in the wire feeding direction.

  At this time, in the wire rod conveyance process, the rear end side of the constant length wire rod, in which only the transmission front end portion was held in the front end portion movement stroke, is held, so that the rear end portion side of the constant length wire rod can be prevented from falling. .

  Further, in the wire rod conveyance step, the wire rod is moved in the wire rod feeding direction while holding the feeding tip portion of the next wire rod fed from the wire rod feeding means following the fixed length wire rod.

  Therefore, even when the next wire is sent from the wire sending means following the fixed length wire, it can be moved in the wire sending direction while holding the sending tip of the next wire.

  Further, at this time, in the wire conveyance process, the next wire rod is moved in the wire feeding direction while holding the next wire feeding tip portion, so that the next wire rod feeding tip portion can be prevented from falling.

  Furthermore, in the wire conveyance process, since the fixed length wire is held and conveyed in the wire feeding direction, a space capable of feeding the next wire in the wire feeding direction of the wire feeding means is formed.

  Therefore, the wire rod feeding means can continuously feed the next wire rod toward the space formed in the wire rod feeding direction of the wire rod feeding means.

  Further, even when the next wire is continuously sent out from the wire sending means in this way, in the wire feeding process, the wire is moved in the wire sending direction while holding the sending tip of the next wire.

  Therefore, according to the wire supply method of the twelfth aspect, the next wire can be continuously sent out from the wire sending means without waiting for the completion of the conveyance of the constant length wire.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire.

  The wire supply method according to claim 13 is the wire supply device according to claim 12, wherein, in the wire conveyance process, a speed higher than a moving speed of the next wire rod in the feeding tip portion in the wire rod feeding direction. The fixed length wire is conveyed in the wire feeding direction.

  Next, the operation of the wire supply method according to claim 13 will be described.

  In a wire rod supply method according to a thirteenth aspect of the present invention, in the wire rod conveyance process, the constant length wire rod is conveyed in the wire rod feeding direction at a speed faster than the moving speed of the next wire rod feeding tip in the wire rod feeding direction.

  Therefore, it is possible to reduce the time required for transporting the constant length wire as compared with the case where the constant length wire is transported at the same speed as the moving speed of the next wire rod in the wire feed direction.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire rod.

  The wire rod supply method according to claim 14 is the wire rod supply method according to claim 12 or claim 13, wherein the next wire rod feed tip is moved to the axis of the next wire rod in the wire rod conveyance step. The holding tip of the next wire is moved in the wire feeding direction at the same speed as the feeding speed of the next wire while being held while allowing rotation around.

  Next, the operation of the wire supply method according to claim 14 will be described.

  In the wire rod supply method according to claim 14, in a wire rod conveyance process, the next wire rod feed tip is held in a state in which the next wire rod feed tip is held while allowing rotation around the axis of the next wire rod. Is moved in the wire feeding direction at the same speed as that of the next wire.

  Therefore, even when the next wire is sent while rotating around the axis from the wire sending means, the leading end of the next wire can be positioned in the wire sending direction while allowing rotation of the next wire around the axis. Is possible.

  In the wire supply method according to claim 14, the next wire rod sent from the wire rod feeding means is moved in the wire rod feeding direction at the same speed as the next wire rod feeding speed in the wire rod feeding direction. It is prevented that the slack is generated.

  Therefore, even when the next constant length wire is formed by cutting the next wire sent from the wire sending means, the next constant length wire can be formed with high accuracy.

  The wire rod supply method according to claim 15 is the wire rod feed method according to any one of claims 12 to 14, wherein the wire rod is transported to a predetermined position in the wire rod transport step. It includes a transfer step of receiving the wire and transferring it to the next process.

  Next, the operation of the wire rod supply method according to claim 15 will be described.

  According to a fifteenth aspect of the present invention, the wire rod supply method includes a transfer step of receiving the constant-length wire rod transported to a predetermined position in the wire rod transport stroke and transferring it to the next process.

  Therefore, the fixed length wire conveyed to a predetermined position can be supplied to the next step by the transfer step.

  Moreover, while the fixed length wire is being transferred to the next process by the transfer process, it is possible to shift to preparation for forming the next constant length wire.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire.

  The wire rod supply method according to claim 16 is the wire rod supply method according to claim 15, wherein the constant-length wire rod is transferred to the next step in the transfer step while the next tip portion is being transferred. It shifts to a movement process, It is characterized by the above-mentioned.

  Next, operation of the wire rod supply method according to claim 16 will be described.

  In the wire supply method according to the sixteenth aspect of the present invention, the process proceeds to the next tip portion moving process while the constant length wire is being transferred to the next process in the transfer process.

  Therefore, the timing of shifting to the preparation for forming the next constant length wire can be advanced compared with the case where the transfer to the next tip portion moving step is completed after the transfer of the constant length wire to the next step is completed. it can.

  Thereby, it is possible to improve the supply efficiency to the next process of a fixed length wire.

  A wire rod supply method according to claim 17 is the wire rod supply method according to claim 15 or 16, wherein the constant length wire rod is transferred to the next step in the transfer step. The feeding tip of the next wire is moved in the wire feeding direction.

  Next, operation of the wire rod supply method according to claim 17 will be described.

  In the wire rod supply method according to the seventeenth aspect, the feeding tip portion of the next wire rod is moved in the wire rod feeding direction even while the constant length wire rod is being transferred to the next step in the transfer stroke.

  Therefore, while the constant length wire is transferred to the next process by the transfer unit, even when the next wire is continuously sent from the wire sending means, the leading end of the next wire is moved in the wire sending direction. .

  Thus, according to the wire rod supply method of the seventeenth aspect, the next wire rod is continuously fed from the wire rod feeding means while the constant length wire rod is being transferred to the next step in the transfer stroke. It becomes possible to do.

  Thereby, it becomes possible to further improve the supply efficiency of the constant length wire rod to the next process.

  In particular, when the leading end of the next wire is moved in the wire feeding direction while the constant length wire is being transferred to the next process in the transfer process as described in claim 17, As described, the time required to start the movement of the next wire in the wire feed direction can be shortened when moving to the next tip movement process.

  Thereby, it becomes possible to improve the supply efficiency to the next process of a fixed length wire rod.

  As described above in detail, according to the present invention, it is possible to position the leading end portion of the wire in the wire feeding direction while allowing rotation of the wire sent around the axis from the wire feeding means while rotating around the axis. In addition, the constant length wire can be formed with high accuracy, and the supply efficiency of the constant length wire to the next process can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the members, configurations, arrangements, and the like described below do not limit the present invention, and it is needless to say that various modifications can be made in accordance with the spirit of the present invention.

  First, the configuration of the cord production line 10 as wire rod sending means according to the present embodiment will be described with reference to FIGS.

  The cord production line 10 according to the present embodiment is suitably used to form a cord 20A that constitutes a belt ply of a pneumatic tire, for example.

  The cord manufacturing line 10 includes a plurality of bobbins 14A to C wound with strands 18A to C (for example, steel cords coated with raw rubber), and strands 18A to C unwound from the bobbins 14A to C. There are provided tension control units 16A to 16C for controlling the tension, and a twisting machine 22 for twisting the strands 18A to 18C passing through the tension control units 16A to C into a cord 20A as a wire. The twisting machine 22 is a feed / rotation integrated device that twists the strands 18A to 18C to produce one cord 20A.

  The twisting machine 22 includes a wrinkling portion (molding portion) 24 that attaches wrinkles (types) to the strands 18 </ b> A to 18 </ b> C, a twist point forming portion 28 that forms a twist point 26, and a downstream of the twist point forming portion 28. A rotating body 30 provided on the side, and a motor 34 that applies a rotational force to the rotating body 30 and a feeding force that feeds the cord 20A from the rotating body 30. The rotating body 30 is rotatably held by bearing portions 36 </ b> A and B provided in the twisting machine 22.

  As shown in FIGS. 1 and 2, on the downstream side of the rotating body 30, a rotation driving pulley 42 is fixed to a rotation driving shaft portion 40 extending from the housing 31 of the rotating body 30 in a short cylindrical shape. An endless belt 46 is hung on the rotation driving pulley 42 and the first rotating plate 44 attached to the motor 34.

  An elongated cylindrical feed drive shaft member 50 that transmits the feed force of the cord 20A is supported on the rotary body 30 by the insertion bearing portion 51 so that the rotation shafts coincide with each other. .

  A feed driving pulley 52 fixed to the feed driving shaft member 50 is provided downstream of the rotation driving pulley 42, and the second rotation attached to the feed driving pulley 52 and the motor 34. An endless belt 56 is hung on the plate 54.

  In the housing 31, a feed mechanism 58 for feeding the cord 20A is provided. The feed mechanism 58 includes a first gear 60 that is fixed to the distal end side on the same axis as the feed drive shaft member 50, and a second gear 62 that meshes with the first gear 60.

  A small gear portion 64 having a small diameter is provided at the rotation center of the second gear 62. The feed mechanism 58 has a winding portion 66 around which the cord 20A is wound several times and a multistage winding capstan 68 having a large gear portion 67 that meshes with the small gear portion 64, and a multistage winding capstan 68 in contact with the cord. And a pinch roller 70 that presses 20A against the winding portion 66. Further, the feed mechanism 58 has a multi-stage winding dummy pulley 72 around which the cord 20A wound around the multi-stage winding capstan 68 is further wound several times.

  The diameters of the multi-stage winding capstan 68 and the multi-stage winding dummy pulley 72 are the same as the diameters and materials of the strands 18A to 18C so that there is no problem in terms of straightness when using the cord 20A fed from the rotating body 30. It is decided in consideration.

  Further, the twisting machine 22 is provided with a cord discharge pipe guide 74 for guiding the cord 20A unwound from the multistage winding dummy pulley 72 to the downstream side of the rotating body 30 through the feed driving shaft member 50. Yes. The diameter of the first rotating plate 44 is slightly larger than that of the second rotating plate 54, and the ratio between the rotating speed of the rotating body 30 (twisting speed of the stranded wire) and the feeding speed of the cord 20A is adjusted. .

  As described above, in this embodiment, the rotational driving shaft portion 40 and the feed driving shaft member 50 are coaxially arranged, and the twisting machine is compared with the case where the rotating body 30 is further provided with a feed driving motor. The configuration of 22 is simplified.

  In order to use the twisting machine 22, when the motor 34 is rotated at a predetermined number of revolutions, the feed driving pulley 52 rotates, and the first gear 60, the second gear 62, the multistage winding capstan 68, and the multistage winding dummy pulley 72 are rotated. Rotational force is transmitted sequentially. As a result, the strands 18 </ b> A to 18 </ b> C that have passed through the twist point forming unit 28 are sent out from the rotating body 30 at a predetermined sending speed.

  Further, the rotational driving dummy pulley 72 rotates, and the rotating body 30 rotates at a predetermined rotational speed. Accordingly, the strands 18 </ b> A to 18 </ b> C are twisted while being drawn out from the twist point forming part 28, and are sent out from the rotating body 30 as a cord 20 </ b> A. At this time, the code 20A is continuously sent out from the rotating body 30 while rotating.

  The cord that can be manufactured by the twisting machine 22 is not limited to a steel cord covered with raw rubber, and a cord made of an organic fiber material can also be manufactured, and similar effects can be obtained. Further, a composite in which the cord and the organic fiber are twisted, a composite in which the cord and the cord-like rubber are twisted, and a composite in which the cord, the organic fiber and the cord-like rubber are twisted are manufactured. It is possible to provide a reinforcing material suitable for the required tire quality.

  Next, the configuration of a cord supply device 80 as a wire rod supply device according to the present embodiment will be described with reference to FIGS. 3 to 5.

  The cord supply device 80 is for supplying the cord 20A sent from the cord production line 10 while rotating around the axis to the dummy drum 128 of the next process. The cord supply device 80 includes a tip holding portion 82, a rear end holding portion 84, an auxiliary tip holding portion 86, a moving mechanism portion 88, a cord cutting portion 90, and a transfer portion 92.

  The tip holding portion 82 holds the sending tip portion of the cord 20A sent while rotating around the axis from the cord manufacturing line 10 or the sending tip portion of the fixed length cord 20B (see FIG. 7) to be described later. It is comprised so that it can move to (X direction).

  That is, as shown in FIG. 4, the tip holding portion 82 is configured to have a slider 96 that can be moved in the code sending direction (X direction) by a pair of guide rails 94 provided in the moving mechanism portion 88. Yes. The slider 96 includes a nut portion (not shown), and this nut portion is screwed to a first feed screw 98 provided in the moving mechanism portion 88.

  The slider 96 is configured to move in the code sending direction (X direction) with the rotation of the first feed screw 98 of the moving mechanism 88.

  The slider 96 holds suction by holding a sending tip of a cord 20A sent while rotating around the axis from the cord production line 10 or a sending tip of a fixed length cord 20B (see FIG. 7) described later. Part 100 is provided. The suction holding unit 100 is disposed coaxially with the delivery tip of the cord 20A, and includes a main body 102, a tip 104, a rotating unit 106, a permanent magnet 110, a bearing 112, and a spring 114, as shown in FIG. Has been.

  The main body 102 is formed of a cylindrical body extending in the code sending direction (X direction), and is fixed to or integrally formed with the slider 96 shown in FIG. The main body 102 is provided with a recess 116 that opens in a direction opposite to the code sending direction (X direction), and a distal end 104 is provided on the opening side of the recess 116.

  The distal end portion 104 is formed with a tapered hole portion 118 whose diameter is reduced from the direction opposite to the code sending direction (X direction) toward the code sending direction (X direction). The taper shape of the taper hole 118 is for smoothly guiding the cord 20A into the taper hole 118 when the feeding tip of the cord 20A is sucked and held.

  The diameter of the taper hole 118 opposite to the cord sending direction (X direction) is larger than that of the cord 20A, and the diameter of the taper hole 118 on the code sending direction (X direction) side is The cord 20A can be inserted. Further, the code hole delivery direction (X direction) side of the taper hole 118 is opened in the recess 116.

  And the rotation part 106 is accommodated in the recessed part 116 rotatably. The rotating portion 106 is provided with a suction tip portion 120 that decreases in diameter from the code sending direction (X direction) side toward the direction opposite to the code sending direction (X direction). The most distal end portion of the suction tip portion 120 slightly protrudes from the tapered hole portion 118 in the direction opposite to the code delivery direction (X direction).

  In addition, a shaft portion 122 is formed integrally with the suction tip portion 120 in the rotating portion 106. The shaft portion 122 is supported by a bearing 112 provided in the main body portion 102. Thereby, the rotation unit 106 is rotatable with respect to the main body unit 102.

  A permanent magnet 110 is provided around the shaft portion 122 of the rotating portion 106. The permanent magnet 110 is disposed coaxially with the delivery tip of the cord 20A and is biased toward the suction tip 120 by a spring 114 provided in the main body 102.

  In this embodiment, the rotating unit 106 is made of a magnetic metal material, and the permanent magnet 110 is in close contact with the code sending direction (X direction) side of the attraction tip 120 formed in the rotating unit 106, thereby attracting the rotating unit 106. Magnetism is emitted from the direction opposite to the code sending direction (X direction) of the tip portion 120.

  The delivery tip portion of the cord 20 </ b> A introduced into the tapered hole portion 118 at the tip portion is sucked by the suction tip portion 120 of the rotating portion 106.

  Thus, in this embodiment, the magnetic attraction means M is comprised by the rotation part 106 and the permanent magnet 110. FIG. When the delivery tip of the cord 20A is attracted and held by the magnetic attracting means M of the tip holding portion 82, the cord 20A rotates together with the magnetic attracting means M, thereby allowing the rotation of the cord 20A around the axis. It is like that.

  In the present embodiment, the delivery tip of the cord 20A guided into the tapered hole 118 of the tip 104 is attracted to the suction tip 120 of the rotating unit 106, and rotation around the axis of the cord 20A is allowed. In addition to this, a configuration in which the delivery tip of the cord 20A is directly attracted to the permanent magnet 110 may be employed.

  At this time, the permanent magnet 110 may be made non-rotatable, and rotation about the axis of the cord 20A may be allowed on the attracting surface between the permanent magnet 110 and the cord 20A.

  Further, an electromagnet is used in place of the permanent magnet 110, and the leading end of the cord 20A is attracted by the magnetism generated from the electromagnet, and rotation around the axis of the cord 20A is allowed on the attracting surface between the electromagnet and the cord 20A. You may do it.

  The rear end holding portion 84 shown in FIG. 3 is provided closer to the cord production line 10 than the front end holding portion 82.

  The rear end holding portion 84 is provided with a U-shaped groove (not shown) that supports the cord 20A from below. The rear end holding portion 84 enables rotation of the cord 20A sent in the code sending direction (X direction) and movement of the cord 20A in the code sending direction (X direction) by this U-shaped groove.

  Further, the rear end holding portion 84 is provided with a movable claw (not shown) that is opened and closed by an actuator (not shown). Then, the rear end holding portion 84 holds the fixed-length cord 20B formed by cutting the cord 20A by this movable claw so as to grip the sending rear end side.

  Further, the rear end holding portion 84 is provided with a nut portion (not shown), and this nut portion is screwed to a second feed screw (not shown) provided on the moving mechanism portion 88.

  The rear end holding portion 84 is configured to move in the cord sending direction (X direction) with the rotation of the second feed screw of the moving mechanism portion 88.

  The auxiliary front end holding portion 86 is provided closer to the cord production line 10 than the rear end holding portion 84.

  The auxiliary tip holding portion 86 is provided with a U-shaped groove (not shown) that supports the cord 20A and the next cord 20C from below. The rear end holding portion 84 enables rotation of the cord 20A sent in the code sending direction (X direction) and movement of the cord 20A in the code sending direction (X direction) by this U-shaped groove.

  Further, the auxiliary tip holding portion 86 can hold the next cord 20C with the U-shaped groove supported from below by allowing the next cord 20C to rotate around the axis of the next cord 20C. ing.

  Further, the auxiliary tip holding portion 86 is provided with a nut portion (not shown), and this nut portion is screwed to a third feed screw (not shown) provided on the moving mechanism portion 88.

  The auxiliary tip holding portion 86 is configured to move in the code sending direction (X direction) with the rotation of the third feed screw of the moving mechanism portion 88.

  The moving mechanism unit 88 includes a first feed screw 98 and a second unillustrated second screw for moving each of the front end holding unit 82, the rear end holding unit 84, and the auxiliary front end holding unit 86 individually in the cord sending direction (X direction). And a third feed screw.

  The first feed screw 98 and the second and third feed screws (not shown) extend along the code sending direction (X direction), respectively, and are rotated by respective motors (not shown) provided in the moving mechanism unit 88. It is configured. In addition, each motor is configured to rotate in the forward and reverse directions based on a command from a control device or an external control device (both not shown) provided in the moving mechanism unit 88.

  The cord cutting unit 90 includes a cutter (not shown) and the like, and is configured to cut a cord 20A that is sent from the cord manufacturing line 10 while rotating around an axis with a predetermined length. .

  The transfer unit 92 includes a turning hand 124 and an implantation hand 126. The turning hand 124 is provided with a movable claw (not shown) that is opened and closed by an actuator.

  Then, the turning hand 124 receives and turns by holding the fixed length cord 20B (see FIG. 7) conveyed to a predetermined position by the front end holding portion 82 and the rear end holding portion 84 with a movable claw. The fixed length code 20B is configured to be transferred to the implantation hand 126.

  The implantation hand 126 is configured to receive the fixed length cord 20B from the turning hand 124 and to implant the fixed length cord 20B into the dummy drum 128 of the next process.

  Next, a method for supplying the constant length cord 20B to the dummy drum 128 using the cord supply device 80 according to the present embodiment will be described with reference to FIGS.

  First, in the initial state, the front end holding portion 82, the rear end holding portion 84, and the auxiliary front end holding portion 86 are positioned on the cord production line 10 side (the front end holding portion 82) as shown in FIG. Is indicated by a two-dot chain line).

  When the cord 20A is sent from the cord production line 10 from this initial state, the tip holding portion 82 sucks and holds the sending tip portion of the cord 20A by the magnetic attracting means M, and then moves the sending tip portion of the cord 20A. It moves in the code sending direction (X direction) while being sucked and held (tip portion moving process).

  At this time, the tip holding portion 82 allows the rotation of the cord 20 </ b> A by attracting the sending tip portion of the cord 20 </ b> A with the magnetic attracting means M. Further, the tip holding portion 82 moves in the code sending direction (X direction) at the same speed as the sending speed of the code 20A sent from the code manufacturing line 10.

  The rear end holding portion 84 and the auxiliary front end holding portion 86 allow the cord 20A sent from the cord manufacturing line 10 to pass through the respective U-shaped grooves, and rotate around the axis of the cord 20A and the cord sending direction (X direction). Do not hinder the movement.

  Then, as shown in FIG. 6B, when the cord 20A sent from the cord manufacturing line 10 has a predetermined length as the tip holding portion 82 moves in the cord sending direction (X direction), The rear end holding portion 84 operates an actuator (not shown) to close the movable claw, and holds the position of the length L from the leading end portion of the cord 20A by the movable claw.

  Subsequently, as shown in FIG. 6C, the cord cutting unit 90 cuts a portion held by the rear end holding unit 84 of the cord 20A (constant length wire forming step). Thereby, the fixed length code 20B having a predetermined length is formed.

  At this time, the fixed-length cord 20B is in a state where the delivery tip end portion is held by the tip end holding portion 82 and the delivery rear end side is held by the rear end holding portion 84.

  Further, as shown in FIG. 6 (C), the auxiliary tip holding portion 86 has a U-shaped groove as a sending tip portion of the next cord 20C that is continuously sent from the cord manufacturing line 10 following the fixed length cord 20B. To support from below.

  Then, as shown in FIG. 7A, the leading end holding portion 82 and the trailing end holding portion 84 move in the cord sending direction (X direction) while holding the constant length cord 20B, whereby the fixed length cord 20B. Transport. Further, the auxiliary tip holding portion 86 moves in the cord sending direction (X direction) while holding the sending tip portion of the next cord 20C sent from the cord manufacturing line 10 so as to be supported from below by the U-shaped groove. (Wire material transport process).

  At this time, the leading end holding portion 82 and the trailing end holding portion 84 move in the cord sending direction (X direction) at a speed faster than the moving speed of the auxiliary tip holding portion 86 in the cord sending direction (X direction), and have a constant length. The code 20B is conveyed.

  Further, the auxiliary tip holding portion 86 is supported around the axis of the next cord 20C by supporting the sending tip portion of the next cord 20C sent from the cord production line 10 while rotating around the axis by a U-shaped groove from below. In a state where the rotation is held while allowing the rotation of the next code 20C, it moves in the code sending direction (X direction) at the same speed as the sending speed of the next code 20C.

  Eventually, as shown in FIG. 7B, when the fixed length cord 20B is conveyed to a predetermined position by the front end holding portion 82 and the rear end holding portion 84, the front end holding portion 82 and the rear end holding portion 84. The turning hand 124 receives the fixed length cord 20B held by the leading end holding portion 82 and the trailing end holding portion 84 so as to be gripped by the movable claw.

  The rear end holding unit 84 opens the movable claw after the turning hand 124 receives the fixed length cord 20B, and releases the fixed length cord 20B.

  Since the fixed length cord 20B is simply sucked and held by the magnetic attracting force of the magnetic attracting means M at the tip holding portion 82, the constant length code 20B is removed from the magnetic attracting means M by the turning of the swivel hand 124. Leave.

  Then, as shown in FIG. 8A, the turning hand 124 turns while holding the fixed length cord 20B, and transfers the fixed length cord 20B to the implantation hand 126.

  The implantation hand 126 receives the fixed length cord 20B from the turning hand 124, moves downward (Y direction) as shown in FIG. 8B, and implants the fixed length cord 20B into the dummy drum 128 of the next process. (Transport process). Thereby, the fixed length cord 20B is implanted in the dummy drum 128 of the next process.

  On the other hand, as shown in FIG. 8A, the front end holding portion 82 and the rear end holding portion 84 deliver the wire to a position adjacent to the auxiliary front end holding portion 86 after delivering the fixed length cord 20B to the turning hand 124. Translate in the direction opposite to the direction (X direction).

  As shown in FIG. 8A, the auxiliary front end holding portion 86 is moved while the fixed length cord 20B is transferred to the dummy drum 128 by the transfer portion 92, that is, as described above, the front end holding portion 82 and the rear end. Even while the holding portion 84 moves parallel to the position adjacent to the auxiliary tip holding portion 86 after delivering the fixed length cord 20B to the turning hand 124, the sending tip portion of the next cord 20C is supported from below by the U-shaped groove. In this state, it moves in the code sending direction (X direction).

  The front end holding portion 82 translates to a position adjacent to the auxiliary front end holding portion 86, and then receives the delivery front end portion of the next cord 20 </ b> C held by the auxiliary front end holding portion 86 via the rear end holding portion 84. (Attracted and held by the magnetic attracting means M), as shown in FIG. 8C, the feeding tip of the next cord 20C is attracted and held again and moved again in the code sending direction (X direction) (next) Tip travel process).

  On the other hand, the rear end holding portion 84 and the auxiliary front end holding portion 86 can rotate the next cord 20C sent in the code sending direction (X direction) and move the next cord 20C in the code sending direction (X direction). However, the original position on the cord production line 10 side is returned.

  Then, by repeating the above operation, the fixed length code 20B is formed one after another from the code 20A continuously sent from the code manufacturing line 10, and this fixed length code 20B is planted on the dummy drum 128 in the next process one after another. Is included.

  Next, the operation and effect of the cord supply device 80 according to the present embodiment will be described.

  In the cord supply device 80 according to the present embodiment, as described above, even when the cord 20A is sent from the cord production line 10 while rotating around the axis, the sending tip of the cord 20A is magnetically attracted by the tip holding portion 82. By being sucked and held by the means M, the rotation of the cord 20A around the axis is allowed.

  Then, the leading end of the cord 20A is moved in the cord sending direction (X direction) in a state where the rotation of the cord 20A around the axis is permitted by the movement of the tip holding portion 82 in the cord sending direction (X direction) ( (See FIG. 6B).

  As described above, according to the cord supply device 80 according to the present embodiment, it is possible to position the delivery tip of the cord 20A in the cord delivery direction (X direction) while allowing rotation of the cord 20A around the axis. .

  Further, according to the cord supply device 80 according to the present embodiment, since the feeding tip portion of the cord 20A is sucked and held by the magnetic attracting means M, the tip holding portion 82 is configured to be rotatable using a bearing or the like. There is no need to provide a chuck portion (for example, a movable claw or a movable hand). Thereby, it becomes possible to make the front-end | tip holding | maintenance part 82 a simple structure.

  Furthermore, in the cord supply device 80 according to the present embodiment, the tip holding portion 82 moves in the cord sending direction (X direction) at the same speed as the sending speed of the cord 20A sent from the cord manufacturing line 10, so that the tip holding portion The slack of the cord 20A is prevented from occurring between the cord 82 and the cord production line 10.

  Accordingly, even when the cord 20A is cut at the position between the tip holding portion 82 and the cord production line 10 to form the constant length cord 20B as in the present embodiment, the constant length cord 20B is formed with high accuracy. (See FIG. 6C).

  Further, even when the constant length code 20B is formed by cutting the cord 20A by a predetermined length by the cord cutting section 90 in this way, the rear end holding section 84 is used to send the fixed length code 20B. Since the end side is held so as to be gripped by the movable claw, it is possible to prevent the rear end side of the constant length cord 20B from falling.

  Further, by holding the delivery tip of the next cord 20C by supporting it from below with the auxiliary tip holding portion 86, it is possible to prevent the delivery tip of the next cord 20C from falling.

  Further, in the cord supply device 80 according to the present embodiment, the leading end holding portion 82 and the trailing end holding portion 84 move in the cord sending direction (X direction) while holding the fixed length cord 20B.

  As a result, a space S (see FIG. 7) in which the next code 20C can be sent in the code sending direction (X direction) of the code manufacturing line 10 is formed.

  Accordingly, the code production line 10 can continuously send the next code 20C toward the code sendable space S formed in the code sending direction (X direction) of the code manufacturing line 10.

  Even when the next cord 20C is continuously sent out from the cord production line 10 in this way, the sending tip portion of the next cord 20C is held by the auxiliary tip holding portion 86, and the cord sending direction. It is moved in the (X direction).

  Therefore, according to the cord supply device 80 according to the present embodiment, the next cord 20C can be continuously sent from the cord production line 10 without waiting for the return of the leading end holding portion 82 and the trailing end holding portion 84. It becomes.

  Thereby, it becomes possible to improve the supply efficiency to the next process of the fixed length code 20B.

  Furthermore, in the cord supply device 80 according to the present embodiment, the leading end holding portion 82 and the trailing end holding portion 84 are faster than the moving speed of the auxiliary leading end holding portion 86 in the cord sending direction (X direction). In the X direction, the fixed length code 20B is transported.

  Therefore, the front end holding portion 82 and the rear end holding portion 84 move in the code sending direction (X direction) at the same speed as the auxiliary tip holding portion 86 moves in the code sending direction (X direction), and the fixed length cord 20B is moved. Compared with the case of carrying, the time required for carrying the fixed length code 20B can be shortened. Thereby, the supply efficiency to the next process of the fixed length code 20B can be further improved.

  In the cord supply device 80 according to the present embodiment, as shown in FIG. 7A, even when the next cord 20C is sent out from the cord production line 10 while rotating around the axis, the auxiliary tip holding portion With 86, it is possible to position the delivery tip of the next cord 20C in the cord delivery direction (X direction) while allowing rotation of the next cord 20C around the axis.

  In the cord supply device 80 according to the present embodiment, the auxiliary tip holding portion 86 moves in the cord sending direction (X direction) at the same speed as the sending speed of the next cord 20C. The slack of the next cord 20C between the line 10 and the line 10 is prevented.

  Therefore, even when the next constant length cord is formed by cutting the next cord 20C at a position between the tip holding portion 82 and the cord manufacturing line 10 as in the present embodiment, the tip holding portion 82 and the cord Since the next cord 20C is prevented from slackening with the production line 10, the next constant length cord can be formed with high accuracy.

  Further, in the cord supply device 80 according to the present embodiment, the fixed length cord 20B conveyed to a predetermined position by the front end holding portion 82 and the rear end holding portion 84 can be supplied to the next process by the transfer portion 92. .

  In the cord supply device 80 according to the present embodiment, the tip holding portion 82 moves to a position adjacent to the auxiliary tip holding portion 86 while the fixed length cord 20B is being transferred to the next process by the transfer portion 92. (See FIG. 8A).

  Therefore, compared with the case where the tip holding portion 82 moves to a position adjacent to the auxiliary tip holding portion 86 after the transfer of the constant length cord 20B to the next process is completed, the next constant length cord is formed. The timing to shift to preparation can be advanced.

  Thereby, it becomes possible to improve the supply efficiency to the next process of the fixed length code 20B.

  Furthermore, in the cord supply device 80 according to the present embodiment, even when the next cord 20C is continuously sent from the cord production line 10 while the constant length cord 20B is transferred to the next process by the transfer unit 92, The delivery tip portion of the next cord 20C is moved in the cord delivery direction (X direction) while being held by the auxiliary tip holding portion 86 (see FIG. 8A).

  Therefore, according to the cord supply device 80 according to the present embodiment, the next cord 20C can be continuously sent from the cord manufacturing line 10 while the constant length cord 20B is transferred to the next process by the transfer unit 92. It becomes possible.

  Thereby, it is possible to further improve the supply efficiency of the fixed length code 20B to the next process.

  In particular, when the constant length code 20B is transferred to the dummy drum 128 of the next process by the transfer unit 92 as in the present embodiment, the sending tip of the next cord 20C is moved in the code sending direction (X direction). As described above, when the tip holding portion 82 moves to the position adjacent to the auxiliary tip holding portion 86, the moving distance of the tip holding portion 82 to the position adjacent to the auxiliary tip holding portion 86 can be reduced.

  As a result, the time required to start the movement of the next code 20C in the code sending direction (X direction) can be shortened, so that the supply efficiency of the constant length code 20B to the next process can be further improved. .

  As described above in detail, according to the cord supply device 80 and the cord supply method according to the present embodiment, the cord 20A that is sent out while rotating around the axis from the cord production line 10 is allowed to rotate around the axis. The sending tip of 20A can be positioned in the code sending direction (X direction), the fixed length code 20B can be accurately formed, and the supply efficiency of the fixed length code 20B to the next process can be improved. It is possible to improve.

  In the present embodiment, the belt ply cord 20A delivered from the cord production line 10 has been described as being supplied to the dummy drum 128 in the next process. However, the present invention is not limited to this, and the wire rod is not limited thereto. The present invention is applied to all cases where a code sent while being rotated around an axis from a sending means is supplied to the next process.

FIG. 1 is a front view showing an overall configuration of a cord production line according to the present embodiment. FIG. 2 is a view including a partial cross section showing the configuration of the rotating body according to the present embodiment. FIG. 3 is a plan view showing the configuration of the cord supply apparatus according to the present embodiment. FIG. 4 is a diagram showing the configuration of the tip holding portion according to the present embodiment. FIG. 5 is a diagram showing the configuration of the magnetic attraction means according to this embodiment. FIG. 6 is an explanatory view showing the tip end moving process and the constant length wire forming process according to the present embodiment. FIG. 7 is an explanatory view showing a wire conveyance process and a transfer process according to the present embodiment. FIG. 8 is an explanatory diagram showing a transfer process and a next tip part movement process according to the present embodiment.

Explanation of symbols

10 Cord production line (wire feeding means)
20A cord (wire)
20B constant length cord (constant length wire)
20C Next cord (next wire)
80 cord feeder (wire feeder)
82 Tip holding portion 84 Rear end holding portion 86 Auxiliary tip holding portion 90 Cord cutting portion (wire cutting portion)
92 Transfer section 110 Permanent magnet 128 Dummy drum (next process)
M Magnetic adsorption means

Claims (17)

A wire rod feeding device for feeding a wire rod fed while rotating around an axis from a wire rod feeding means to the next process,
The wire supply device has a magnetic attracting means arranged coaxially with a feed tip of a wire sent while rotating around an axis from the wire feed means, and the wire feed tip of the wire stick is fed by the magnetic attracting means. A wire rod supply device, comprising: a tip holding portion that moves in a wire rod feeding direction while being held while allowing rotation of the wire rod around an axis by adsorbing the portion.   The wire supply device according to claim 1, wherein the tip holding portion moves in the wire feeding direction at the same speed as a wire feeding speed sent from the wire feeding means. In the wire rod supply device, a wire rod cutting unit that forms a constant length wire rod by cutting the wire rod that is fed from the wire rod feeding means and held by the tip holding portion at a predetermined length; and
A rear end holding portion that is provided closer to the wire feeding means than the tip holding portion, and holds the sending rear end side of the constant-length wire held by the tip holding portion;
Next to the wire rod sending means, which is provided on the wire rod sending means side with respect to the rear end holding portion, and is sent from the wire rod sending means following the fixed length wire rod conveyed in the state held by the tip holding portion and the rear end holding portion. The wire supply device according to claim 1, further comprising: an auxiliary tip holding portion that holds a feeding tip portion of the wire. The front end holding part and the rear end holding part move in the wire feeding direction in a state where the constant length wire is held,
4. The auxiliary tip holding portion moves in a wire feeding direction in a state where a feeding tip portion of a next wire fed from the wire feeding means is held. Wire rod supply device according to.   The tip holding part and the rear end holding part move in the wire feeding direction at a speed faster than the moving speed of the auxiliary tip holding part in the wire feeding direction, and convey the constant length wire. Item 5. A wire supply device according to Item 4.   The auxiliary tip holding portion holds the next tip of the next wire fed while rotating around the axis from the wire feeding means while holding the next tip of the next wire while allowing rotation around the axis of the next wire. The wire feeding device according to any one of claims 3 to 5, wherein the wire feeding device moves in the wire feeding direction at the same speed as the wire feeding speed.   The wire rod supply device is provided with a transfer portion that receives the constant length wire rod transported to a predetermined position by the tip end holding portion and the rear end holding portion and transfers it to the next process. The wire rod supply apparatus according to any one of claims 3 to 6.   The tip holding portion moves in a direction opposite to the wire feeding direction to a position adjacent to the auxiliary tip holding portion while the constant length wire is being transferred to the next step by the transfer portion. The wire supply device according to claim 7.   The auxiliary tip holding portion moves in the wire feed direction while holding the feed tip portion of the next wire while the constant length wire is transferred to the next step by the transfer portion. The wire supply device according to claim 7 or 8. A wire rod supplying method for supplying a wire rod fed while rotating around an axis from a wire rod feeding means to the next process,
The method of supplying the wire includes the step of adsorbing the wire leading end by means of magnetic attraction arranged coaxially with the wire leading end fed while rotating around the axis from the wire feeding unit. A method of supplying a wire, comprising a tip end moving step of moving the wire in the wire feed direction in a state of being held while allowing rotation around an axis.   The wire rod feeding tip is moved in the wire feeding direction at the same speed as the wire feeding speed sent from the wire feeding means in the tip moving stroke. Supply method. The wire rod supply method includes a constant-length wire forming step of forming a constant-length wire by cutting the wire that has been moved in the wire-feeding direction in the tip-part moving step into a wire having a predetermined length, and
The fixed-length wire is transported in the wire-feeding direction while holding the sending leading end portion and the sending rear end side of the constant-length wire formed in the constant-length wire forming step, and the wire feeding following the constant-length wire. The wire rod feeding method according to claim 10 or 11, further comprising: a wire rod transporting step of moving in a wire rod feeding direction in a state where the leading end portion of the next wire rod fed from the means is held.   13. The constant-length wire is transported in the wire feeding direction at a speed faster than the moving speed of the next wire feeding tip in the wire feeding direction in the wire feeding process. Wire supply method.   In the wire conveyance process, in the state where the leading end of the next wire is held while allowing the rotation of the next wire around the axis of the next wire, the feeding tip of the next wire is set to the feeding speed of the next wire. 14. The method of supplying a wire according to claim 12, wherein the wire is moved in the wire feeding direction at the same speed as in the above.   15. The wire rod feeding method includes a transfer step of receiving a constant length wire rod transported to a predetermined position in the wire rod transport stroke and transferring it to the next step. The method for supplying a wire according to any one of the above.   The wire rod feeding method according to claim 15, wherein the wire rod feeding method shifts to a next tip portion moving stroke while the constant length wire rod is being transferred to the next step in the transfer stroke. Supply method.   The wire rod supply method is characterized in that the feeding tip of the next wire rod is moved in the wire rod feeding direction even while the constant length wire rod is being transferred to the next step in the transfer step. The wire rod supply method according to claim 15 or 16.

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