JPS6366735B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a flexible annular member such as a tire tube, in which a member such as a band is wound spirally along the circumferential surface of the annular member in a small radius direction. The present invention relates to a winding device for winding an annular member, and more particularly to an improvement in a circumferential rotation drive mechanism of the annular member.

[Conventional technology]

Conventionally, as a winding device for spirally winding a band-shaped wrapping paper around a small radius circumferential surface of an annular member made of a relatively hard member such as a wire rod coil such as a tire or an electric wire, or a steel band coil, a winding device developed in the 1970s −22999, Jikko 40−
Devices disclosed in No. 10316 and Utility Model Publication No. 39-27395 are known.

In such conventional winding devices, the target annular member is made of a relatively hard member, so the mechanism for rotating the annular member in the circumferential direction is
It was composed of a plurality of rotatable rollers that were brought into contact with a plurality of circumferential locations of an annular member.

[Problem that the invention seeks to solve]

However, when it is necessary to wrap a reinforcing strip around the circumferential surface of an inflated tire tube, for example, after wrapping a reinforcing strip around the inflated tire tube, When manufacturing a tire with an integrated tube made of liquid rubber, the tire tube that contains air is flexible, so if the tire tube is rotated using rollers as in conventional equipment, the tire tube may become deformed. On the other hand, if the contact force of the roller against the tire tube is made too loose, the tire tube may slip and cannot be rotated smoothly.

Therefore, it has been desired to develop a device that can smoothly rotate a flexible annular member such as a pneumatic tire tube in the circumferential direction and that can spirally wind a wound member around the annular member.

An object of the present invention is to provide an annular member winding device that can smoothly rotate a flexible annular member in the circumferential direction and spirally wind a wound member around the annular member. .

[Means for solving problems]

Therefore, the device according to the present invention includes a flyer that rotates in a direction intersecting the rotating surface of the annular member that is rotated in the circumferential direction, and rotates the wound member supported by the flyer in the small radius direction of the annular member. In a winding device for an annular member that spirally winds along a circumferential surface,
The annular member is a flexible member such as a tire tube, and the rotational drive mechanism of the annular member in the circumferential direction is as follows:
An endless belt that contacts the circumferential surface in the large radius direction of the annular member at two points in the horizontal direction and has a central portion in the width direction recessed along the shape of the small radius circumferential surface of the annular member, and a rotating drive source for this endless belt. Then, most of the endless belt is separated from the annular member from a state in which the endless belt is brought into contact with the circumferential surface in the large radial direction of the annular member at two locations in the horizontal direction and the annular member is rotated as the endless belt rotates. and an endless belt moving mechanism that moves the endless belt to a state where the annular member can be taken out from inside the endless belt.

One endless belt may be arranged at every two locations in the horizontal direction, or one continuous belt may be provided, for example, at the bottom of the annular member.

[Effect]

After the endless belt comes into contact with the circumferential surface of the annular member in the large radial direction at two points in the horizontal direction, the endless belt rotates by the rotation drive source, thereby rotating the annular member, and during this rotation, the flyer By rotating the member in a direction perpendicular to the rotating surface of the member, the member to be wound is spirally wound around the small radius circumferential surface of the annular member.

The endless belt contacts the circumferential surface of the annular member in the large radius direction at two points in the horizontal direction, and the center part of the endless belt in the width direction is recessed along the shape of the small radius circumferential surface of the annular member. Rotating force is applied from the endless belt while it is completely wrapped by the endless belt, so that the annular member, which is a flexible member such as a tire tube, rotates stably and smoothly without deformation or slipping. do.

After the work of winding the member to be wound around the annular member is completed, when most of the endless belt is separated from the annular member by the endless belt moving mechanism, the annular member can be taken out from within the endless belt. , and the next annular member can be set into the endless belt.

〔Example〕

Embodiments of the present invention will be described below based on the drawings. Here, the same or equivalent components in each embodiment are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

1 to 4 show a first embodiment of the present invention, and in the side view of FIG. 1 with some parts omitted,
A fryer holder 2 is provided on the base 1, and a fryer 3 having a C-shaped side surface is rotatably supported by a plurality of rubber rollers 4 on the flyer holder 2. A V-groove 5 is formed on the entire circumference of the flyer 3, and the V-shaped protrusion on the periphery of the rubber roller 4 is engaged with the V-groove 5, and the flyer 3 is moved by frictional force as the rubber roller 4 is driven. It is designed to be rotated. Further, a core shaft 6 is provided upright on the side surface of the flyer 3, and an elongated strip-shaped member 7 to be wound is wound around the core shaft 6.

A friction roller 8 is brought into contact with at least one of the rubber rollers 4, in this embodiment the rubber roller 4 at the lowest position in FIG. is connected to a large motor 12, and is rotated by this motor 12. Further, this roller 12 is fixed on the base 1.

A power distribution board 13 and an operation panel 14 are provided on the front surface of the fryer pedestal 2, so that each part can be operated. Further, a pair of drive mechanism holders 15 and 16 are provided on both sides of the rear part of the fryer holder 2 (see Fig. 2), and one of the pair of holders 15 and 16, that is, the one on the near side in Fig. 1, is provided. A gearbox 17 is provided behind the stand 15. A small motor 18 is provided on the upper part of the gearbox 17, and the output shaft of the motor 18 is connected to an input shaft 20 of the gearbox 17 via a chain transmission mechanism 19, and a worm is attached to the inner end of the input shaft 20. (not shown) is engaged with a worm wheel 22 attached to the inner end of the output shaft 21 (see FIG. 3), so that the output shaft 21 is rotated. The outer end of the output shaft 21 is rotatably supported by a bearing box 23 provided on the one drive mechanism pedestal 15 via a rotary bush 24 and a bearing 25 (see FIG. 3). Further, a sprocket 26 is fixed in the middle of the output shaft 21, and a chain 27 wound around this sprocket 26 is
It is also wound around a sprocket 29 fixed to a shaft 28 (see FIG. 4), and this shaft 28 is connected to a rotary bush 31 and a bearing (not shown) in a bearing box 30 provided on the other drive mechanism pedestal 16. ) is rotatably supported. As a result, the output shaft 21
rotation is transmitted to the shaft 28.

2 and 3 show details of the portion of the rotary drive mechanism supported by the pedestal 15, which has been briefly explained based on FIG. Details of supported parts are shown. In these figures, each rotating bush 2
Drive mechanism frames 32 and 33 made of substantially Y-shaped plates are respectively fixed at one end of the Y-shape to the end faces of 4 and 31, so that they can rotate with respect to the bearing boxes 23 and 30 together with the rotary bushes 24 and 31. It's getting old. These frames 32 and 33 include
a cylinder 34 as a drive mechanism frame drive source attached to the base 1 in the form of a trunnion;
35 piston rods 36 and 37 are connected, and as the cylinders 34 and 35 are driven, the frames 32 and 3
3 can be opened and closed, and an annular member 38 made of a pneumatic tire tube or the like can be inserted and taken out.

As shown in FIGS. 2 and 3, one of the drive mechanism frames 32 and 33 rotatably supports an intermediate shaft 39, and the intermediate shaft 39 protrudes from the frame 32. Timing pulleys 40 and 41 are fixed to both ends of the output shaft 21, and one pulley 40 is connected to a timing pulley 43 fixed to the outer end of the output shaft 21 via a timing belt 42, and the other pulley 41 is connected to a timing pulley 43 fixed to the outer end of the output shaft 21. It is connected to a timing pulley 45 via 44. This pulley 45 is fixed to one end of a drive shaft 47 that is rotatably supported at the upper end of the frame 32 via a bearing 46, and the other end of the drive shaft 47 that protrudes on the opposite side of the frame 32 has a cylindrical shape. A driving pulley 48 is fixed. A drum-shaped guide pulley 50 with a concave center is rotatably supported by the frame 32 via a support shaft 49 below the drive pulley 48 .

An upper end of a support plate 51 is fixed to the end face of the bearing box 23, and a driven pulley 5 is mounted on the support plate 51 at a position approximately symmetrical to the drive pulley 48 and guide pulley 50 across the horizontal center line of the annular member 38.
2 and the guide pulley 53 are respectively connected to the support shaft 54,
55 so as to be rotatable. The driven pulley 52 and the guide pulley 53 are respectively cylindrical and drum-shaped with a concave center.

An endless belt 56 having a width larger than the thickness of the annular member 38, that is, the diameter in the small radius direction, is wrapped around each of the pulleys 48, 50, 53, and 52 endlessly. This endless belt 5
A drum-shaped tension pulley 57 with a convex center is abutted in the middle of 6, that is, on the opposite side from the side facing the annular member 38, and this pulley 57
is rotatably supported by a U-shaped fixture 58. This fixture 58 is fixed to the tip of a piston rod 60 of a cylinder 59 attached to the frame 32, and is guided by two parallel guide bars 61 attached to the frame 32 via guide bushes 61A. At this time, when the piston rod 36 of the cylinder 34 for driving the frame 32 advances and the pair of frames 32 and 33 are in the closed state, that is, in the solid line state in FIG. 2, the piston rod 60 of the cylinder 59 advances. Endless belt 56 is loosened, thereby allowing endless belt 56 to conform to the major radial circumferential surface of annular member 38, while piston rod 36 of cylinder 34 is retracted so that the pair of frames 32, 33 is in the open state (see the chain line position in FIG. 2), the piston rod 60 retreats and the endless belt 56 is stretched around each pulley 48, 50, 53, 52, 57, and each pulley 48, 50, 53, 52, and 57 so as not to come off.

Further, on the side of the frame 32 facing the annular member 38 , guide plates 62 are attached to both sides of the endless belt 56 via a plurality of spacers 63 along the large radial curvature of the annular member 38 . is prevented from falling off.

The other frame 33 has a frame 32
Almost the same structure is installed. That is, as shown in FIGS. 2 and 4, a cylindrical driven pulley 64 is rotatably supported on the upper part of the frame 33 by a support shaft 65, and a drum with a recessed center is mounted slightly below the driven pulley 64. shaped guide pulley 6
6 is rotatably supported by a support shaft 67.
Further, the upper end of a support plate 68 is fixed to the end face of the bearing box 30, and a drum-shaped guide pulley 70 is rotatably supported on this support plate 68 by a support shaft 69, and a drive shaft 71 is rotatably supported on the support plate 68. Supported. A cylindrical drive pulley 72 is fixed to the tip of the drive shaft 71, and a timing pulley 73 is fixed to the middle of the drive shaft 71.
A timing pulley 75 fixed to the other end of the 8 is connected, whereby the rotational force transmitted from the small motor 18 to the shaft 28 is applied to each pulley 64, 66, 70,
The signal is transmitted to an endless belt 76 that is passed around the belt 72. A drum-shaped tension pulley 77 is in contact with this endless belt 76. This pulley 77 is attached to a piston rod 80 of a cylinder 79 via a fitting 78, and is guided via a guide bush 81 to two parallel guide bars 82.

Further, on the side of the frame 33 facing the annular member 38, guide plates 83 are attached to both sides of the endless belt 76 via a plurality of spacers 84 along the large radial curvature of the annular member 38. is prevented from falling off.

In addition, an interlocking mechanism from the small motor 18 to the output shaft 21 and the shaft 28, an interlocking mechanism including timing belts 42, 44, 74 disposed on the front and rear surfaces of the drive mechanism frame 32 and the front surface of the drive mechanism frame 33, and a pair of Drive mechanism frame 3
2, 33 and each pulley 48, 50, 53, 52, 57, 6 attached to the support plate 51, 68
4, 66, 70, 72, 77 constitute a rotating drive source 85 for the endless belts 56, 76, a pair of drive mechanism frames 32, 33, and a cylinder 34 as a drive source for these drive mechanism frames 32, 33. 35 constitutes an endless belt moving mechanism 86. Further, the rotating drive source 85, the endless belt moving mechanism 86, and the endless belts 56, 76 constitute a rotating drive mechanism 87 for the annular member 38 in the large radius circumferential direction.

Next, the operation of this embodiment will be explained.

A pair of frames 32, 33 are driven by cylinders 34, 35 for driving the frames, and each rotary pushbutton 24,
31 with respect to the bearing boxes 23 and 30 to open it. Next, both frames 32,
An annular member 38 is inserted between endless belts 56 and 76 of 33, and the cylinders 34 and 35 are operated in opposite directions to close the pair of frames 32 and 33. At this time, the notch of the flyer 3 is positioned upward as shown in FIG.
9 and 79 are operated in conjunction with the cylinders 34 and 35 as described above, and when the frames 32 and 33 are closed, the endless belts 56 and 76 are brought into contact in a shape that follows the circumferential surface of the annular member 38 in the large radial direction. It's becoming like that. Also, at this time, the portions of the endless belts 56, 76 that the annular member 38 contacts are connected to the respective guide pulleys 50, 53 and 66, 70.
As a result, the center in the width direction is recessed, that is, the shape approximately follows the curvature of the circumferential surface of the annular member 38 in the small radius direction, and the annular member 38 and each endless belt 5
6 and 76 to ensure good contact.

Next, the outer end of the member 7 to be wound, which has been previously wound around the core shaft 6 of the fryer 3, is fixed to a predetermined location on the annular member 38, and the large motor 12 and the small motor 18 are driven. As a result, the flyer 3 and the endless belts 56, 76 are driven, and as the endless belts 56, 76 rotate, the annular member 38 is smoothly rotated in the circumferential direction of the large radius. Therefore, the member 7 to be wound is spirally wound around the small radius circumferential surface of the annular member 38 by the flyer 3 rotating in a plane intersecting the rotational plane of the annular member 38. .

After the member 7 to be wound is wound around the entire circumference of the annular member 38 in this way, each motor 12, 1
8, and each cylinder 34, 3
5, 59, 79 and frame 32, 33
is opened, the annular member 38 is taken out, and the member 7 to be wound is wound around the next annular member in the same manner.

At this time, by appropriately adjusting the rotational speed of each motor 12, 18, the degree to which the spirals of the wound member 7 overlap can be adjusted as desired.

According to the above embodiment, when the annular member 38 is rotated by the endless belts 56 and 76,
The endless belts 56, 76 contact the circumferential surface of the annular member 38 in the large radius direction at two points in the horizontal direction, and the center portions of the endless belts 56, 76 in the width direction follow the shape of the small radius circumferential surface of the annular member 38. Due to the concave shape, the annular member 38 is entirely wrapped by the endless belts 56, 76, and therefore the endless belts 56, 7
6 and the annular member 38 is large, and even if the annular member 38 is a flexible member such as a tire tube that easily deforms, the annular member 38 will not deform and will not slip between the endless belts 56 and 76. The annular member 38 can be stably and smoothly rotated without causing any problems.

FIG. 5 shows a second embodiment of the present invention, in which both edges of the endless belts 56, 76 are held between a plurality of rollers 100, and the endless belts 56, 76 on the annular member 38 side are forcibly recessed. This is an example.

According to this embodiment, the endless belts 56, 7
The abutment of the annular member 38 by the annular member 6 is ensured, and rotation can be transmitted more smoothly.

A third embodiment of the present invention is shown in FIG. 6, in which the endless belt is not divided into two, but one continuous endless belt 88 is used at the bottom of the annular member 38, and the flyer 3 A pulley 89 is provided at the lower center in consideration of interference with the first
The structure and operation are the same as in the first embodiment, except that the two support plates 51 and 68 in the embodiment are replaced with one support plate 90, and the pulley 89 is supported on this support plate 90. It is. However, in this embodiment, since there is only one endless belt 88, the sprocket 26 provided on the output shaft 21,
An interlocking mechanism such as Chiyun 28 becomes unnecessary.

According to this embodiment, in addition to the same effects as the first embodiment, there is an advantage that the configuration is simplified.

FIG. 7 shows a fourth embodiment of the present invention, in which the frame supporting the endless belts 56, 76 is not driven, and the endless belts 56,
Pulleys 48, 50, 53, 5 on which 76 is hung
Among the pulleys 48, 50 and 64, 66, which were immovable in the first embodiment, are connected by connecting plates 91, 92, respectively, and the elongated holes 93 , 94, and these pulleys 4
It is equipped with cylinders 95, 96 for moving the cylinders 9, 50 and 64, 66, and these long holes 93,
94 and cylinders 95 and 96 constitute an endless belt moving mechanism 86. In addition, the tension pulleys 57, 77 are connected to springs 97, 9.
8.

This embodiment configured in this manner can also achieve the same effects as the first embodiment.

In addition, for implementation, endless belt 56,
76 and the annular member 38 are the outer periphery of the annular member 38.
It was found that contacting at ~80% of the time was good in terms of rotational drive. Furthermore, in the first embodiment, the frames 32 and 33 are not limited to being divided into two parts, but may be divided into three or more parts, and the opening/closing operation of the frames 32, 33 is not limited to being driven in a rotational manner; However, the first embodiment has the advantage that the annular member 38 can be easily supported. Further, the configuration of the second embodiment can be applied to the third and fourth embodiments, and the configuration of the third embodiment can also be combined with the fourth embodiment.

〔Effect of the invention〕

According to the present invention, since the annular member is rotated while being wrapped in an endless belt, it is possible to stably and easily rotate a flexible annular member such as a tire tube, and it is possible to stably and easily rotate a flexible annular member such as a tire tube. The member can be reliably wound spirally.

[Brief explanation of drawings]

FIG. 1 is a partially omitted side view showing a first embodiment of the present invention, FIG. 2 is a partially omitted front view, and FIG. 3 is a view of the rotary drive mechanism located on the left side of FIG. 4 is a sectional view of the rotary drive mechanism located on the right side of FIG. 2, FIG. 5 is a perspective view of the main part showing the second embodiment of the present invention, and FIG. 6 is the third embodiment of the present invention. FIG. 7 is a front view showing the schematic structure of the fourth embodiment of the present invention. 3... Flyer, 7... Wound member, 18...
Small motor as a rotational drive source, 32, 33...
Drive mechanism frame, 34, 35... Cylinder as drive mechanism frame drive source, 38... Annular member, 56, 76, 88... Endless belt, 8
5... Rotating drive source, 86... Endless belt moving mechanism, 87... Rotating drive mechanism.

Claims (1)

[Claims] 1. A flyer that rotates in a direction perpendicular to the rotating surface of an annular member rotated in the circumferential direction, and a wound member supported by the flyer is rotated on the circumferential surface of the annular member in a small radius direction. In a winding device for an annular member that spirally winds the annular member, the annular member is a flexible member such as a tire tube. an endless belt that abuts the circumferential surface in the large radius direction and whose center portion in the width direction is recessed along the shape of the small radius circumferential surface of the annular member; The endless belt is brought into contact with the circumferential surface of the annular member in the large radial direction, and the annular member is rotated as the endless belt rotates, then most of the endless belt is separated from the annular member, and the annular member is removed from inside the endless belt. and an endless belt moving mechanism for moving the endless belt to a state where it can be taken out. 2. In claim 1, the endless belt moving mechanism is configured such that at least a portion of the endless belt is wound around the endless belt, and is opposed to the annular member with a predetermined gap in the rotating plane, and is capable of opening and closing. 1. A winding device for an annular member, comprising at least a pair of drive mechanism frames and a drive mechanism frame drive source for opening and closing these drive mechanism frames.