JP2004098640A - Method for manufacturing retainer band-shaped bead wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a retainer band-shaped bead wire characterized by twinning a steel wire around a core bar in slant from a horizontal direction of the vertical and the lateral of the core bar, and wrapping the steel wire in retainer band shape. <P>SOLUTION: A connecting rod 12 connecting a cylinder with a reel travelling stand 6 which is an obstruction factor when an annular core bar 1 is lifted upward is cut off, a protruded portion 15 is provided to a cut end portion, a connecting plate provided with a recessed portion 11 so as to be switchable is mounted to the reel travelling stand with a spring hinge or the like, when the annular core bar is lifted, the connecting plate is opened, immediately after the core bar passed through the connecting rod, the connecting plate returns to the origin by the action of the spring hinge, a recessed and protruded portion is meshed and integrated, and the reel travelling stand can be dragged in. Further, the helical integration of the annular core bar and steel wire is carried out not by wrapping but by entwining. <P>COPYRIGHT: (C)2004,JPO

Description

TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for manufacturing a bead wire used by being embedded in an end portion of a tire of an automobile.
[Prior art]
Increasing the performance and size of automobiles will increase the weight of the vehicle body and increase the speed, so the tires will be subjected to greater pressure, and it will be necessary to further strengthen the integration with the tire wheels and respond to the increased load What we do is bead wire.
The bead wire structure is the same as that used by French Michelin companies for tubs, sake casks, etc.All bead wire manufacturers arrange steel wires in multiple stages and harden them with rubber, except for bead wires. That is the current situation.
Regarding the strength of the bead wire, even if the steel dose is the same, it is thought that the strength of the wire wound structure, which is a tag-shaped structure, improves due to the function of the friction between the steel wires as compared to the bead wire of the aligned winding. Therefore, domestic bead wire manufacturers are studying the manufacturing method of bead wire with tag-like structure, that is, winding structure, but it has not been realized yet, and it is only slightly produced by hand winding.
[Problems to be solved by the invention]
[0001]
Tag used in tubs, sake barrels, etc. was manufactured by winding a long wrapping material around the basic ring once and wrapping it around. Was inefficient.
[0002]
If the bead wire is mechanically wound with a bead wire, if the cylinder shaft is driven by only one of the cylinder shafts, unless the steel wire-wound reel itself swims in the air and passes through the core metal, It is physically impossible to wrap the steel wire around the core bar because the shaft is stuck or the core bar gets in the way.
[0003]
The problem with manufacturing a tag-shaped bead wire by sliding the reel base back and forth with a cylinder or the like is that the connecting rod connected to the cylinder prevents the upward movement of the core bar. The point was why.
[0004]
Therefore, in the present manufacturing method, the connecting rod is cut near the rail recess, the core bar can be moved upward, and only when the reel moving base is pulled in, the connecting rod and the reel moving base are connected and integrated by the connecting plate. It is what we decided.
[Means to solve the problem]
[0001]
Shafts such as cylinders, cams, and cranks have no effect when cutting, except when pulling an object, that is, when pushing or stopping. Therefore, in this case, only when pulling the reel carriage, it is possible to connect the reel carriage to the connecting rod connected to the cylinder.
[0002]
In this manufacturing method, the tip of the steel wire is entangled or temporarily fixed without fixing it to the core metal, and it is made to be able to rotate freely, and the flat surface of the steel wire reel wound with a smaller diameter than the core metal is wound Combining the movement, the vertical movement of the cored bar, and the rotation of the cored bar, the steel wire is entangled with the cored bar by the bending stress of the steel wire, and winding is performed so that twisting stress is not generated.
DETAILED DESCRIPTION OF THE INVENTION
[0001]
The outline of the manufacturing method of this tag-shaped bead wire,
[0002]
As shown in FIG. 1, the tip of one core is lowered into the recess of the rail 11, the reel 3 is mounted on the reel moving base 6, and the tip of the steel wire 2 is temporarily fixed to the core. Then, the reel moving base is set on the side A on the rail. Then, the upper part of the core is moved to the side B by the connecting rod.
[0003]
Next, as shown in FIG. 2, when the mandrel is lifted by the mandrel vertical moving roller 5, the connecting plate 7 attached by the spring hinge is opened to allow the mandrel to move upward, The operation returns to the original state, and the concave portion and the convex portion provided on the connecting rod and the connecting plate are engaged and integrated.
[0004]
Next, as shown in FIG. 3, the reel moving base is pulled back to the A side under the cored bar by the integrated connecting rod.
[0005]
Next, as shown in FIG. 4, the mandrel is lowered into the rail recess by the mandrel vertical movement roller. Returning to FIG. 1, the process is repeated, and the steel wire is entangled with the core by tilting by the bending action in the up, down, left, and right horizontal directions and the rotation of the core, and is wound in a tag shape.
[0006]
Haga-shaped bead wire is manufactured through the above process, and the steel wire is connected at the end with a pipe at the end. The structure of the winding machine will be explained specifically.
[0007]
As shown in FIG. 5, the tip of the steel wire of the reel mounted on the reel moving base is temporarily fixed to an arbitrary position of one core bar, and the ring tip D of the core bar is connected to the rail 10 as shown in FIG. Then, the core metal is driven at a constant speed by the core metal driving roller 4 while moving the rail between the rail concave portion and the upper part of the reel up and down by the core metal vertical movement roller 5.
[0008]
Although the twelve connecting rods and the six reel moving base are originally integrally formed, in the present manufacturing method, they are cut in the vicinity of the rail recesses, and as shown in FIG. The connecting plate 7 is attached to the reel moving base with the spring hinge 8 and the concave connecting hole 9 is provided at the tip thereof so as to engage with the convex portion of the connecting rod so that it can be opened and closed only when the core metal is moved upward. The connecting rod is used to alternately slide the reel carriage between the A and B sides.
【Example】
The sliding of the reel moving base by the cylinder and the driving of the core metal vertical moving roller can also be performed by a crank or a cam, and the connecting plate can be freely opened and closed, and the integration with the connecting rod is smoothly performed. It is necessary to provide a convex part on the connecting rod side and a concave connecting hole on the connecting plate side that engages, so that when the core metal moves upward, it will not be hindered.
The spring hinge that attaches the connecting plate to the reel carriage can be implemented with a leaf spring with a connecting hole or a U-shaped wire spring.
In addition, the steel wire may be cut to the required length, bent, wound and bundled, put in a container smaller than the cored bar diameter, and mounted on a reel moving table, without being wound on the reel.
【The invention's effect】
Tag-shaped bead wire is one that has a bead-like shape and remains strong even if its adhesion to the rubber that constitutes the tire is broken. .
[Brief description of the drawings]
FIGS. 1 to 4 are schematic side views showing a manufacturing process of a tag-shaped bead wire. FIG. 5 is a schematic top view of a machine for manufacturing a tag-shaped bead wire, and FIG. 6 is a schematic side view showing a cross section taken along line CC of FIG. Fig. 7 is a schematic cross-sectional view near the connecting plate.
[Explanation of symbols]
1. 1. Core metal Steel wire3. Reel 4. Core drive roller 5. Core metal up / down moving roller 6. Reel carriage 7. Connection plate 8. Spring butterfly board 9. Recess connection hole 10. Rail11. Recess 12. Connecting rod 13. Core drive motor 14. Cylinder 15. Convex part

Claims (1)

A connecting rod connected to a cylinder, a cam, a crank, or the like is cut from the reel moving base near the concave portion of the rail, and a convex portion is provided at a tip portion of the connecting rod, and a concave connecting portion is connected to the separated reel moving base. Attach the connecting plate with holes with spring hinges or the like. When the mandrel is lowered into the rail recess, the reel moving table is moved from part A to part B over the mandrel by a connecting rod integrated by a connecting plate, and then the mandrel is moved up and down. The connecting plate is pushed up and opened by the core bar supported by the roller, and when the core bar reaches the upper part of the reel, the convex portion of the connecting bar and the concave connecting hole of the connecting plate engage with each other to form the connecting bar B. After pulling the reel on the side under the mandrel and pulling it back to the A side, the mandrel is lowered to the rail recess.
A reed-shaped bead wire characterized in that the repetition of the above and rotation of the cored bar by the cored bar drive roller inclines and entangles the steel wire on the cored bar from the upper, lower, left and right horizontal directions of the cored bar, and winds the steel wire in a resilient shape Manufacturing method.

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