JPH02182435A - Apparatus for winding adhesive tape around pipe end - Google Patents

Abstract

PURPOSE:To automatically wind an adhesive tape around a pipe end by mounting an adhesive tape leading end holding and pressing device for pressing and adhering an adhesive tape to a pipe end and an adhesive tape cutting and pressing device for cutting the end part of the adhesive tape wound around the pipe end to press and adhere the same to the pipe end. CONSTITUTION:A wound adhesive tape T is supported by a rotationally driven annular flier 20 in a rotatable manner and the leading end part of the unwound adhesive tape T is held to the holding and pressing part 31 of an adhesive tape holding and pressing device 30 in an adsorbed state. The holding and pressing part 31 is raised by a cylinder 33 and the leading end of the tape T is pressed and adhered to a pipe end. Subsequently, the flier 20 is rotated at a low speed to wind the adhesive tape T around the pipe end and, at the point of time when the tape T is wound to a certain degree, the flier is rotated at a usual speed and the adhesive tape T is wound until lapped to the winding start end thereof. Then, the tape T is cut by the cutter of a cutting and pressing device 40 and the terminal of the tape T is pressed and adhered to the pipe end by a pressing part 45. At the same time, the cutting start end part of the tape is held to the holding part 31 of the holding and pressing device in an adsorbed state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a device for automatically winding adhesive tape around the end of a tube.

[Prior Art] For example, the outer peripheral surface of a steel pipe is coated with a synthetic resin for corrosion prevention. When connecting these coated steel pipes by threaded joints or welding, it is necessary to peel off the coating layer at the ends of the pipes. Therefore, when these steel pipes are coated with synthetic resin, the ends of the pipes are wrapped in tape in advance so that the coating on the ends of the pipes can be easily removed.

[Problem to be Solved] However, in the past, this work was performed manually, which was extremely inefficient. Therefore, there was a strong demand for automation of this work.

The object of the present invention is to provide a device for winding adhesive tape around the end of a tube, which can meet the above requirements.

[Means for Solving the Problems] A device for winding adhesive tape around a pipe end of the present invention is an annular flyer provided to be rotationally driven relative to the device body, and the wound adhesive tape can be rotated. What you support and
An adhesive tape tip holding and pressing tool that is equipped with a holding and pressing part that sucks and holds the tip of the adhesive tape unwound from the wound adhesive tape and also presses and adheres it to the tube end, and is attached to the device body perpendicular to the tube axis. a cutter for cutting the end of the adhesive tape wound around the end of the tube; , an adhesive tape cutting and pressing tool equipped with a pressing part that presses and adheres the winding end of the tape to the tube end, and is provided on the device main body so as to be driven forward and backward in the tube axis direction; It is configured.

[Function] The wound adhesive tape is rotatably supported by an annular flyer that is rotatably driven relative to the main body of the device. The tip of the rewound live tube tape is sucked and held by the holding and pressing part of the adhesive tape holding and pressing tool at the forward limit. The holding and pressing tool is swung relative to the main body of the apparatus until the adhesive tape holding and pressing section crosses the center of the tube. Then, the holding and pressing section is raised to press and bond the tip of the held tape to the tube end. The fryer is then rotated to begin wrapping the adhesive tape around the end of the tube. Once the tape has been wrapped to a certain extent,
The tape tip holding and pressing tool is swung, and the fryer is further rotated to wind the adhesive tape until it wraps around the unrolled end. Then, move the adhesive tape cutting and pressing tool forward,
The tape is cut by the cutter of the pressing tool, and the terminal end of the tape is pressed and bonded to the tube end by the pressing section. At the same time, the cutting start end is held by suction on the holding and pressing part of the holding and pressing tool.

In this way, the adhesive tape is automatically wound and adhered to the tube end.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1.2, the apparatus main body 10 is constructed by standing a base plate 12 on a pedestal 11. As shown in FIG. Frame 1
1 is adapted to be moved on a rail 13 by a cylinder 14. An annular flyer 20 is rotatably provided on the base plate 12 and supported by a plurality of rollers 21 provided on the same circumference. In the flyer 20,
An annular spur gear 22 is fixed to the pinion, and a pinion 23 meshes with this gear. By driving this pinion 23 via a belt 25 by a motor 24 provided on the pedestal 11, the fryer 20 is rotationally driven. A plate 26 is provided to protrude from the fryer 20, and a shaft 27 for rotatably supporting the wound adhesive tape T is protruded from the plate.

As shown in FIG. 3.4, a shaft 35 is provided protruding from the rear side of the base plate 12, and an arm 36 is swingably attached to this shaft and is swingable by a cylinder 38. A cylinder 37 is attached to the end of this arm 36,
This cylinder drives the adhesive tape tip holding and pressing tool 30 forward and backward in the tube axis direction. The tip holding and pressing tool 30 is provided with a tape tip holding and pressing section 31 that is driven up and down by a cylinder 33 .

The holding and pressing section 31 is configured to attract and hold the tape T by the vacuum pressure generated by a tube 32 connected to a vacuum source (not shown).

As shown in FIG. 5, a metal fitting 41 is provided on the rear side of the base plate 12, and a tape end cutting press tool 40 is attached to this metal fitting.
A cylinder 42 for advancing and retracting is attached. The cutting and pressing tool 40 includes a holder 43 having a cutter 44 at its tip, and a pressing portion 45 that is moved up and down by a cylinder 46 on this holder. Then, the cutting press tool 4
0 is mounted so as to be driven back and forth in the tube axis direction at the position shown in FIG.

On the other hand, as shown in FIG. 3, a lever 51 having a tension roll 50 of the tape T at its tip is rotatably provided on the flyer 20 via a bin 52. This lever 5
1 is pulled by a tension spring 53 to apply tension to the tape T. And cylinder 54
By rotating the lever 51 to the right against the force of the spring 53, the tape T is loosened.

Next, the operation of the apparatus having the above structure will be explained with reference to FIG. 6, which schematically shows the operation.

The motor 2 is connected to the base plate 12 of the device main body 10.
The wound adhesive tape T is rotatably supported by an annular flyer 20 provided to be rotationally driven by a shaft 27 via a shaft 27. The tip of the rewound sticky tape T is sucked and held by the holding part 31 of the adhesive tape holding and pressing tool 30 (indicated by the two-dot chain line in Fig. 4) advanced by the cylinder 37 (position C in Fig. 6). ). The holding and pressing tool is swung relative to the main body of the apparatus by the cylinder 38 until the adhesive tape holding part 31 crosses the center of the tube (position D in FIG. 6). Then, the holding and pressing part 31 incorporated in the holding and pressing part 30 is raised by the cylinder 33, and the tip of the tape T is pressed and bonded to the tube end. Next, the flyer 20 is rotated at a low speed by the motor 24 to begin wrapping the adhesive tape T around the tube end. When the tape T has been wound to a certain extent, the tape tip holding and pressing tool 30 is swung relative to the main body of the apparatus (position C in Figure 6), the flyer is further rotated at normal speed, and the adhesive tape T is wound. Roll until the exposed end is wrapped. and,
The adhesive tape cutting and pressing tool 40 is advanced, the tape T is cut by the cutter 44 of the cutting and pressing tool, and the terminal end of the tape is pressed and bonded to the tube end by the pressing part 45. At the same time, the cutting start end of the tape is sucked and held by the holding part 31 of the holding and pressing tool.

In this way, the adhesive tape is automatically wound and adhered to the tube end.

When wrapping the tape around the next tube end, the cutting and pressing tool 40 is moved backward, the tension roller 50 is moved from the B position in FIG. 6 to the A position by the cylinder 53, the tape T is loosened, and the tube end is sucked. The holding part 31 is moved from the C position to the D position. Next, the same operation as above is repeated to wrap the tape around the tube end. The time required for these series of operations is approximately 4 seconds.

[Effects of the Invention] The device for winding adhesive tape around the end of a pipe according to the present invention is as described above, and can completely automatically wind the tape around the end of a pipe without requiring any human intervention, resulting in labor savings. can be achieved.

[Brief explanation of the drawing]

1 and 2 are a front view and a side view showing one embodiment of the device of the present invention, FIGS. 3 and 4 are a front view and a side view with a part cut away, and FIG. FIG. 6 is an explanatory diagram of the surroundings of the pressing part, and FIG. 6 is an explanatory diagram of the operation. 10... Device main body, 12... Base plate, 20
- Annular flyer, 30... Holding and pressing tool, 31...
- Holding and pressing part, 40... Cutting and pressing part, 44... Cutter, 45... Pressing part, T... Adhesive tape, P...
Tutorial Applicant Agent Patent Attorney Takehiko Suzue Figure 1 Figure Figure 1

Claims (1)

[Scope of Claims] An annular flyer that is rotatably driven relative to the device body and rotatably supports a rolled adhesive tape; and An adhesive tape tip holding and pressing tool having a holding and pressing part that suctions and holds the tip and press-bonds it to the tube end, and is installed on the device main body so as to be driven to swing in a direction perpendicular to the tube axis. , a cutter for cutting the end of the adhesive tape wound around the end of the tube, and a cutter for pressing the end of the tape onto the end of the tube. An apparatus for winding an adhesive tape around a tube end, comprising: an adhesive tape cutting and pressing tool having a pressing part, which is provided on the apparatus main body so as to be driven forward and backward in the tube axis direction;