JPS62236729A - Apparatus for winding tape - Google Patents

Abstract

PURPOSE:To make it possible to follow-up easily various changes of the cross section of a member being wound with a tape, and to wind the tape as pressing against elastically, by supporting and interposing the starting end of the tape with the being wound member carried in on the axial line of a revolving member and the tip end of a winding member, and by revolving the revolving member around the axial line. CONSTITUTION:As a tape 22 is uncoiled, a holding supply mechanism 23 is forwarded, and the tip end of uncoiling is supplied to the tip end of a winding member 17, and a bead 31 is carried in onto the axial line of a revolving member 6 through a slit 8, and it is positioned and retained with retaining means 36, 37. Here the winding member 17 is forced into outsidely in the radial direction by the bead to displace under flexing elastically and supports under interposing the tip end of the tape with the inner periphery of the bead. Then the holding supply mechanism 23 releases the tape and recesses, and as it holds again, a cutter 24 reaches up to the position of the tape, and cuts the tape into preset lengths. Then as pinions 10, 11 are revolved by a motor, the revolving member and wrapping member are revolved integrally, and firmly wind the tape around the surroundings of the bead to adhere. Furthermore as the winding member 17 is constituted of plural segments 18 of thin width it is possible to follow-up to various forms.

Description

DETAILED DESCRIPTION OF THE INVENTION -1 This invention relates to a tape winding device for winding a tape around an object.

For example, in the tire industry, a continuous wire is wound around a forming machine many times to form a hexagonal bead. The ends must be treated to prevent the wire from unwinding or from protruding from the shape of the hexagonal bead.For this reason, conventionally, the hexagonal bead is coated with rubber to restrain the beginning and end of the wire. It was wrapped with cloth tape.

However, in the past, the tape was wound by the worker cutting the tape into a predetermined length for each bead, which resulted in poor work efficiency and a great burden on the worker. The problem is that they are forced to do so.

, These problems are solved by a ring-shaped rotating body, a rotation means for rotating the rotating body around its axis, and a rotation means attached to the rotating body and extending toward the rotational axis of the rotating body. The winding can be elastically displaced in the longitudinal direction with the body,
This can be solved by a device equipped with

First, the object to be wrapped is brought onto the axis of the rotating body, and the starting end of the tape is held between the object to be wound and the tip of the object to be wound.
Next, when the rotating means is activated to rotate the rotating body around the axis, the tape is wrapped around the object while being elastically pressed by the wrapping body. In this way, the tape can be wrapped reliably around the object with high efficiency. At this time, since the wrapping body can be elastically displaced, the wrapping can easily follow the object even if the cross section of the object is not circular or even if its diameter changes variously.

1 case of “Ura” Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the drawing, 1 is a flat base, and a pair of posts 2.3 are erected on this base 1. These bosses) 2 and 3 have arc-shaped holders 4 located on the same circumference.
, 5 are respectively attached, and these arcuate holders 4.5
is slightly shorter than half the circumference and has the same radius of curvature. Reference numeral 8 denotes a ring-shaped rotating body, and a circumferential groove 7 is formed on the outer periphery of the rotating body 6, into which the arc-shaped holders 4 and 5 are slidably fitted. Slits 8 through which beads (to be described later) pass are formed at l locations on the circumference of the rotating body 8. External teeth 8 are formed on the outer periphery of the rotating body 6, and the external teeth 9 have a pair of pinions 10.1 driven and rotated by a motor (not shown).
1 is engaged. The distance between these binions 10 and 11 is larger than the width of the slit 8, so that even if one of the binions faces the slit 8, the remaining other binion will mesh with the external teeth 9 and rotate the rotating body 6. Rotation is guaranteed. The aforementioned motor, the external teeth 8, and the pinion 1O111 collectively constitute a rotating means 12 that rotates the rotating body 6 along the arrow A around its axis. A block 18 is attached to the side surface of the rotating body 8 about half a circle away from the slit 8, and the rotating body 8 is attached to this block 1B.
The winding extending toward the rotational axis (central axis) of the body 17
is installed. In this winding, the body 17 is constructed by arranging a plurality (four in this embodiment) of horseshoe-shaped narrow segments along the axis of rotation, and each segment 18 is formed by bending a leaf spring. ing. As a result, when an external force in the longitudinal direction (radial direction) is applied to the tip of the body 17 of the first coil, the body 17 is bent and displaced in the longitudinal direction. 2
Reference numeral 1 denotes a tape roll on which a continuous adhesive tape 22 is wound, and the tape 22 is made of rubberized cloth and has a certain degree of rigidity. The unwinding tip of the tape 22 is held between the front and back sides by a gripping and supplying mechanism 23. The holding and supplying mechanism 23 approaches the wrapping body 17 while holding the tape 22, and can supply the unwinding tip of the tape 22 to the tip of the wrapping body 17.

24 is a cutter that cuts the tape 22 in the width direction;
This cutter 24 consists of an upper blade 25 and a lower blade 26 that move up and down, and when the gripping and supplying mechanism 23 moves, it retreats to the side to avoid interference with the gripping and supplying mechanism 23. 31 is a hexagonal bead as a product, and this hexagonal bead 31 is formed by winding a continuous wire 32 in a forming machine (not shown) so that the cross section becomes hexagonal.
It is carried into the rotating body 6 by a loader (not shown) without changing its attitude. As a result, the starting end (not shown) and the terminal end 33 of the wire 32 constituting the hexagonal bead 31 are located within the width of the body 17 at the time of delivery.

Reference numerals 3B and 37 denote a pair of holding means for sandwiching and positioning and holding the hexagonal bead 31, and each holding means 3B and 37 has a pair of rollers 38 and 39 that can move toward and away from each other.

Next, the operation of one embodiment of the present invention will be explained.

First, while unwinding the tape 22 from the tape roll 21, the gripping and supplying mechanism 23 is advanced toward the winding body 17,
The unwinding tip of the tape 22 is wound up to the tip of the body 17.Next, the hexagonal bead 31, which has been previously formed in a forming machine, is transported by a loader without changing its posture.
It passes through the slit 8 and is carried onto the rotation axis of the rotating body 6. At this time, the starting end and the terminal end 33 of the hexagonal bead 31 are wound to the zeroth order located within the width of the body 17, and the hexagonal bead 31 is positioned and held by the holding means 3B and 37.

At this time, the winding body 17 is slightly pushed outward in the radial direction by the hexagonal bead 31 and is elastically bent, and the unwinding tip of the tape 22 is connected to the inner circumference of the hexagonal bead 31. Then, after the gripping and supplying mechanism 23 releases its grip on the tape 22, it retreats to the initial position and grips the tape 22 at that position again.Next, the cutter 24 releases the tape 22. After moving to the position, the upper blade 25 approaches the lower blade 2B and the tape 22 is cut to a predetermined length.Next, the pinion 1O is moved by the motor.
111 is rotated to rotate the rotating body B and the winding body 17 integrally around the axis. At this time, the wrapping body 17 elastically presses the tape 22 onto the outer periphery of the hexagonal bead 31 while sliding on the surface of the tape 22, so that the tape 22 is securely and firmly wrapped around the hexagonal bead 31 near the starting and ending ends 33. Wrapped and glued. Further, since the body 17 is composed of a plurality of narrow segments 18, the winding can reliably follow the hexagonal shape. In this way, the tape 22 is wrapped multiple times around the hexagonal bead 31, and the starting and ending ends 33 of the wire 32 are restrained. Next, the hexagonal bead 31 is released from the holding means 36, 37 and then transported to the next process. Furthermore, since the winding body 17 can be elastically displaced, it is possible to easily accommodate changes in the shape, diameter, etc. of the bead.

In the above-mentioned embodiment, the rotating body 6 was supported by a pair of arc-shaped holders 4 and 5, but in the present invention, it may be supported from the outside by a plurality of rollers. The winding body may be composed of a rubber block whose tip is covered with metal, for example, and may also be of a double shaft structure with a spring interposed in the middle. It can also be applied to the work of wrapping tape around various other objects.

1] As described above, according to the present invention, the tape can be reliably wrapped around an object with high efficiency.

[Brief explanation of drawings]

The drawing is an overall perspective view showing an embodiment of the present invention.

Claims (1)

[Claims] a ring-shaped rotating body; a rotating means for rotating the rotating body around its axis; and a rotating means that is attached to the rotating body and extends toward the rotational axis of the rotating body and can be elastically displaced in the longitudinal direction. a wrapping body, the rotating body is rotated by a rotating means after the object to be wrapped is carried onto the axis of the rotating body and the starting end of the tape is sandwiched between the object to be wrapped and the tip of the wrapping body. A tape winding device characterized in that the tape is wound around an object to be wound while being elastically pressed by a winding body.