JP4461785B2 - Molded bead and separator positioning device in a molded bead conveying process - Google Patents

Description

  The present invention relates to a positioning device for forming beads and separators in a forming bead conveyance process, and more specifically, a forming bead capable of producing a large variety of small amounts of forming beads, having low equipment costs, and easy to operate. The present invention relates to a separator positioning device.

  In general, a tire bead used as a component of a tire is formed by supplying a rubber-coated single wire bead wire to a bead forming device and winding it multiple times to form a ring-shaped formed bead having a predetermined diameter. Is removed and set in a thread winding device, and the bundled yarn is wound around the wire end of the forming bead and fixed.

  When this molded bead is transferred to a loading rack equipped with a cantilevered fork, an annular separator made of a resin material having a thickness slightly larger than the outer diameter of the molded bead is formed. It is suspended by interposing with beads alternately and transported to the next process while preventing mutual adhesion of the molded beads (for example, see Patent Document 1).

However, such a conventional bead transfer method, when there is a size change of the tire bead, transport, loading must perform setup to another, thus improving the productivity on the not suitable for small production In addition, it is necessary to manually interpose and collect the separator between the forming beads with respect to the loading rack, and it takes a lot of labor and time, which increases the cost. It was.

Furthermore, since the end position of the bead wire cannot be automatically set in the circumferential direction of the tire, it is difficult to achieve uniform tire rigidity and it is difficult to improve the tire uniformity. was there.
JP 2000-355056 A

  The present invention pays attention to such conventional problems, and can transfer and load molded beads regardless of the change of the bead size. Therefore, it is possible to easily produce a wide variety of products in small quantities, and to improve work efficiency and production. A molding bead and separator positioning device in the molding bead transport process that can be easily operated without any change in the setting regarding the bead diameter size of the molding bead, the equipment cost is low, and the operation is easy. It is intended to provide.

In order to achieve the above object, the present invention provides a molded bead formed in a ring shape and an annular separator by a molded bead shooter and a separator shooter provided in the molded bead conveying step, and the center of the molded bead is predetermined. A molding bead and separator positioning device for positioning so as to be positioned on an imaginary line, wherein the molding bead shooter and the separator shooter have a saddle shape having a concave cross section and are directed toward the positioning position at the lowest end. The molding bead and the separator are inclined at an angle at which they can run, and the tip is formed in a V-shape in a side view at the positioning position, and the shooter extends in a direction where the shooter extends with reference to the positioning position at the lowest end. The separator shoes are arranged side by side so as to be parallel to each other. Positioning position of the over, is to the center of the forming bead which is located in the positioning position, and subject matter that so as to be positioned virtual line and the center of the separator positioned at the positioning position is located.

  Here, the inclination angle of the bottom surface of the molded bead shooter and the separator shooter is set to 10 ° to 30 ° capable of self-propelling, and the molded bead shooter and the separator shooter formed in the shape of a bowl having a concave cross section. The side surface of this is provided with notches for forming beads and separators.

  Furthermore, a notch portion into which a gripping means for gripping the positioned molded bead and the inner diameter of the separator can be inserted at the lowest position of the shooter of the molded bead and the shooter of the separator, and the shooter bead of the molded bead Positioning means composed of a rotary drive roller capable of positioning the wire end portion of the molded bead at an arbitrary position in the circumferential direction and a rotatable driven roller are installed at the positioning position.

  By configuring in this way, it is possible to carry and load molded beads regardless of the bead size change, so it is also possible to easily produce a large variety of products in small quantities, and are positioned between the molded beads. Since a separator can be automatically interposed, it is possible to improve work efficiency and productivity.

The present invention, therefore have configured as described above, in which excellent effects as follows.
(a) Since the molded beads can be transported and loaded regardless of the bead size change, a large variety of small-quantity production can be easily performed.
(b) Since the positioned separator can be automatically interposed between the molding beads, the working efficiency and the productivity can be improved.
(c) There is no setting change regarding the bead diameter size of the forming bead, the equipment cost is low, and the operation can be easily performed.
(d) Regardless of the bead diameter size of the forming bead, it can be transported without changing the position of the apparatus or the control numerical value.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic plan view of a bead conveying device that implements a positioning device for forming beads and separators in the forming bead conveying process of the present invention, and FIG. 2 is an operation explanatory diagram at the time of conveying the forming beads and separator. The conveying device includes a bead forming device 1 for forming a ring-shaped formed bead W having a predetermined diameter by winding a rubber-coated bead wire a plurality of times, and an unillustrated yarn unwinding at a wire terminal portion of the formed bead W A bobbin winding device 2 for winding and fixing a bundled yarn unwound from the device, a bead delivery device 3 for conveying a forming bead W to which a wire end portion is fixed to a bead self-running position Z, and bead positioning for the forming bead W A shooter 4a having a predetermined inclination angle α1 that is self-propelled to a position G and a symmetrical position on the opposite side to the bead self-propelled position Z of the molded bead W. With installing the stocker device 5 shaped for the separator S, and Shooter 4b of the separator S having a predetermined inclination angle α2 is are installed.

  As shown in FIGS. 3 to 7, the shooters 4a and 4b are formed in the shape of a bowl having a concave section with the tip sides bent at the same inclination angles α1 and α2, respectively. The shooters 4a and 4b It is installed at the opposite position. Formed beads W and separator S cut-out openings 4w, 4s are formed on one side surface of the shooters 4a, 4b, and the formed beads W and separator S are inserted into the ring shape from the cut-out openings 4w, 4s. The formed molded bead W and the annular separator S molded with a resin material having a thickness of several millimeters are supported by the side surfaces of the shooters 4a and 4b along the bottom surfaces of the predetermined inclination angles α1 and α2. The bead positioning position G is self-propelled, and the molded bead W and the annular separator S are positioned on the concentric circular side surface.

  In the vicinity of the bead positioning position G, a fork (two bars) 6a, 6b is inserted and lifted from the notch insertion portion 11 formed in the shooters 4a, 4b to the inner diameter portion of the molded bead W and the separator S. A device 6 is installed, and a pair of molded beads W and separators S lifted by the picking device 6 are sequentially loaded on the loading rack 8 via the loading device 7.

  As described above, the shooter 4a of the molded bead W and the shooter 4b of the separator S are formed in the shape of a bowl having a concave cross section with the tip side bent at a predetermined inclination angle α1, α2, and the inclination angle α1 of each bottom surface. , Α2 is set to 10 ° to 30 ° so that the molded bead W and the separator S can self-run.

  In addition, when the inclination angles α1 and α2 are less than 10 °, the self-running of the formed beads W and the annular separator S formed in a ring shape becomes difficult. There is a problem that the forming bead W and the separator S are easily deformed, and it is preferable to set in the range of the inclination angles α1 and α2.

  Further, at the bead positioning position G of the shooter 4a of the molded bead W, positioning means 9 constituted by a drive roller 9a and a driven roller 9b capable of positioning the wire terminal portion of the molded bead W at an arbitrary position in the circumferential direction, etc. Is installed.

  By providing this positioning means 9, the end position of the wire end portion can be arbitrarily set in the circumferential direction of the tire. As a result, the uniformity of the tire rigidity can be achieved and the tire uniformity can be improved. Is.

  Next, a method for conveying and positioning the molded beads W and the separators S using the above shooters 4a and 4b will be described.

  First, as shown in FIG. 1, a rubber-coated bead wire is wound a plurality of times by a bead forming device 1 to form a ring-shaped formed bead W having a predetermined diameter, and a yarn original fabric is formed on a wire end portion of the formed bead W. The binding yarn unwound from the unwinding device is wound and fixed by the bobbin winding device 2.

  In this way, when the forming bead W around which the binding yarn is wound and fixed is conveyed to the self-running position of the bead and the forming bead W is inserted through the notch insertion port 4w of the shooter 4a, the predetermined bead angle α1 is obtained. The shooter 4a formed in a bowl shape having a concave cross section is self-propelled to the bead positioning position G at the lowermost end.

On the other hand, Lift a plurality of separators S stacked horizontally as shown in FIG. 2, the separator S of the upper side, by adsorbing the outer diameter end reference side by the suction holding means 10 of the vacuum pads and the like It is turned through 90 °, and is fed from the notch inlet 4s of the supply part of the shooter 4b having a predetermined inclination angle α2 opposite to the bead self-running position in a substantially vertical state.

  Then, the inserted separator S is self-propelled to the bead positioning position G by the shooter 4b having a predetermined inclination angle α2, and is positioned on the concentric circular side surface with the forming bead W and stopped. Therefore, the lowermost end of the shooter 3b that transports the separator S formed in advance larger than the outer diameter of the molded bead W is at least the separator than the lowermost end of the bead positioning position G of the shooter 4a having the inclination angle α1 of the molded bead W. The fork 6a, 6b of the take-up device 6 is positioned so that it can be easily inserted into the hollow inner diameter portion of the forming bead W and the separator S.

  In this way, the fork 6a, 6b of the picking device 6 is inserted into the hollow inner diameter portion of the forming bead W and the separator S, which are positioned concentrically and lifted, and then is loaded on the loading rack 8 via the loading device 7. They are arranged in order and loaded.

In this way, the molded beads can be conveyed and loaded regardless of the bead size change, and as a result, high-mix low-volume production can be easily performed. In addition, since the forming bead can be transferred automatically, the number of work steps can be reduced and the productivity can be improved.
Furthermore, it can be transported without changing the position of the apparatus, the control numerical value, etc., regardless of the bead diameter size of the molded beads.

It is a schematic plan view of the bead conveyance apparatus for enforcing the bead conveyance method of this invention. It is operation | movement explanatory drawing at the time of conveyance of a shaping bead and a separator. It is an expansion front view of a shooter of a forming bead and a separator. It is a BB arrow top view of FIG. FIG. 4 is a side view taken along the line CC in FIG. 3. It is a DD arrow side view of FIG. It is EE arrow sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bead forming apparatus 2 Thread winding apparatus 3 Bead delivery apparatus 4a, 4b Shooter 5 Stocker apparatus 6a, 6b Fork 6 Picking apparatus 7 Loading apparatus 8 Loading rack 9 Positioning means 9a Drive roller 9b Follower roller 10 Adsorption holding means 11 Notch insertion part W Molding Bead Wa Wire end part Q Binding thread Z Bead self-running position G Bead positioning position S Separator 4w, 4s Notch inlet H Separator width α1, α2 Inclination angle

Claims (6)

The ring-shaped molded bead and the annular separator are positioned by the molded bead shooter and the separator shooter provided in the molded bead conveying process so that their centers are located on a predetermined imaginary line. A positioning device for molded beads and separators,
The molded bead shooter and the separator shooter are bowl-shaped with a concave cross section, and are inclined at an angle at which the molded bead and the separator can self-run toward the lowermost positioning position. The shooters are formed so that their tips rise in a V shape, and the shooters are arranged in parallel so that they are parallel to each other along the direction in which the shooters extend with reference to the positioning position of the lowermost end. An apparatus for positioning a forming bead and a separator in a forming bead conveying step , wherein the center of the forming bead positioned at the positioning position and the center of the separator positioned at the positioning position are positioned on an imaginary line. . The positioning device of the molding bead and the separator in the molding bead conveying step according to claim 1, wherein an inclination angle of a bottom surface of the molding bead shooter and the separator shooter is set to 10 ° to 30 ° capable of self-propelling. The molding bead and separator in the molding bead conveying step according to claim 1 or 2, wherein a cut-in opening for the molding bead and the separator is provided on a side surface of the shooter of the molding bead and the separator shooter formed into a bowl shape having a concave cross section. Positioning device. The positioning position of the lowermost end of a shooter shooter and the separator of the forming bead claim provided with a cutout insertion portion that inserts allow forks pick device to lift is inserted into the inner diameter of the forming bead and a separator positioned 4. A molding bead / separator positioning device in the molding bead conveying step according to 1, 2 or 3. 5. The forming bead conveying step according to claim 1, 2, 3 or 4, wherein positioning means capable of positioning a wire end of the forming bead at an arbitrary position in the circumferential direction is installed at a bead positioning position of the shooter of the forming bead. Positioning device for molded beads and separators in 6. The positioning device for forming beads and separators in a forming bead conveying step according to claim 5, wherein the positioning means is composed of a rotation driving roller that supports the lower surface side of the forming beads and a rotatable driven roller.

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