JPS62827B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an adherend having a circumferential surface such as a cylindrical shape,
For example, the present invention relates to a method and apparatus for wrapping and bonding a tape around the outside of a concrete pillar, fume pipe, paper pipe, etc., in a non-rotating state.

As an apparatus for wrapping a tape around the outer peripheral surface of a non-rotating tubular or rod-shaped adherend, there is an apparatus described in Japanese Utility Model Application Publication No. 48-55127. In this known device, a tape pad is attached to an annular frame having a plurality of guide rolls in contact with the outer periphery of an adherend, and the tape pulled out from the tape pad is pressed against the outer periphery of the adherend by a presser roll and applied.
Since the guide roll is brought into contact with the outer periphery of the adherend at an appropriate angle, the tape is wound spirally around the outer periphery of the adherend.

In the above known device, the guide roll rotates along the outer circumference of the adherend, so the adherend must be cylindrical or cylindrical, and the tape must be crimped onto the adherend. Since there is only one presser roll, it is necessary to press manually to ensure initial adhesion, which is extremely troublesome. Since the weight of the entire device is added to the adherend, there are problems such as not being suitable for large-sized devices.

There is also a device described in Japanese Utility Model Publication No. 51-53302, but this device also has a plurality of guide rolls that rotate in contact with the outer periphery of the adherend, and the guide rolls are tilted with respect to the adherend. The tape is wound in a spiral by attaching it with a circular cross section, and the adherend is limited to electric wires. Since the known technology does not have a tape cutting device, it is not possible to cut a tape to a certain length and wrap it around a certain position on an adherend.

In order to solve the problems of the conventional tape winding device as described above, the present invention arranges a circular annular main rotor surrounding the outside of a non-rotating adherend with an appropriate space, and A large-diameter circular annular auxiliary rotor surrounding the outside of the rotor is arranged with an appropriate space, and each of these rotors is rotatably supported within a gate-shaped frame. Providing separately driven drive means,
The upper part of the frame is equipped with a tape feeding device and a tape cutting device that cuts the fed tape, and below this cutting device is a swinging belt with an endless tape feeding perforated belt that can be put into a vacuum suction state as needed. A frame is provided, the auxiliary rotor is provided with a movable arm having a pressure roll that presses and adheres the tip of the tape fed from the tape feed device to the outside of the adherend, and the main rotor is covered with the pressure roll. A movable arm is provided with a pasting roll that wraps and attaches the tape with the tip of the adherend crimped onto the adherend as the main rotor rotates, and the perforated tape delivery belt of the swing frame is connected to the tape when cutting the tape. A control means is provided to prevent the cut tape from hanging down when the tape is in a vacuum suction state, and to stop the vacuum suction when winding the tape. When returning to its original position, the swing frame is retracted so that it does not interfere with the return of each roll.

An embodiment of the inventive device will be described below in detail with reference to the accompanying drawings.

In Figures 1 and 2, reference numeral 1 denotes an adherend, for example, a round bar-shaped object such as a concrete utility pole, which is conveyed in the axial direction by rollers or the like installed on a stand (not shown). be.

Reference numeral 2 denotes a frame of the apparatus of the embodiment, which is gate-shaped, and has a main rotor A in the center thereof and an auxiliary rotor B arranged concentrically on the outside thereof. Main rotor A
and auxiliary rotor B are a pair of annular bodies 3 and 4 at the front and rear.
It is made up of A base plate 5 of the frame 2 has a pair of front and rear grooved support rolls 6 rotatably supported by appropriate bearings, and each annular body 4 is placed on each roll 6.

Reference numeral 7 denotes a plurality of idle rolls disposed between the inner and outer annular bodies 3 and 4, and grooves on the outer periphery thereof engage with the outer periphery of the annular body 3 and the inner periphery of the annular body 4. Further, these rolls 7 are rotatably attached to a support ring 8 concentric with the annular bodies 3 and 4 at regular intervals.

A shaft 9 is rotatably supported by the left and right annular bodies 4 of the auxiliary rotor B, and the outer ends of a pair of movable arms 10 are fixed near both ends of this shaft. As shown in FIG. 3, this arm 10 is bent into an L shape, and both ends of a shaft 12 on which a pressure roll 11 is rotatably mounted are fixed to the inside thereof.

Reference numeral 13 denotes a shaft rotatably attached to the left and right annular bodies 3 of the main rotor A, and the outer ends of a pair of movable arms 14 are fixed near both ends of this shaft 13. This arm 1
4, both ends of a shaft 16 to which a pasting roll 15 is rotatably attached are fixed.

A tape guide 17 is provided at the inner end of both arms 14.
The guide 17 is wide enough to fit between the arms 10.

As shown in FIGS. 1 and 2, levers 18 and 19 are fixed to one end of each of the shafts 9 and 13, and this lever 1
Rolls 20 and 21 are provided at the ends of 8 and 19. When each of the rolls 20, 21 is at a predetermined position, it comes into contact with cams 24, 25 fixed to cam shafts 22, 23 provided at appropriate positions on the frame 2. In addition, a second
Attach the springs 26 and 27 as shown in the figure, and
0 and 14 are always applied with a rotational force in the direction of the arrow in FIG.

On the outside of the annular body 3 on one side of the main rotor A, as shown in FIG. Drive roll 2 driven by
9 is crimped to rotate the rotor A in a predetermined direction by a required angle as necessary, and the auxiliary rotor B drives the support roll 6 that supports the annular body 3 by an appropriate driving means to rotate the rotor A as required. The rotor B is configured to rotate the rotor B in a predetermined direction by a required angle in response to the rotation.

C is a tape feeding device, and frame 2
A tape 31 wound around a reel 30 attached to the top of the
is fed out downward by a presser roll 32 and a feed roll 33 attached to the upper part of the frame 2.
The delivery roll 33 has a plurality of circumferential protrusions and grooves formed on its outer periphery at regular intervals, and the second delivery roll 34 below it has a similar plurality of protrusions and grooves formed in the circumferential direction. The protrusions and grooves of both rolls 33 and 34 are fitted together,
By rotating both rolls 33 in the tape feeding direction and making the peripheral speed of the roll 34 slightly faster than the peripheral speed of the roll 33, even if the adhesive surface of the tape 31 is on the rolls 33, 34 side, the rolls 33, 3
It is designed so that it can be sent downward without adhering to the surface of 4.

38 is an endless tape feeding belt;
As shown in the figure, it is wound around pulleys 36 and 37 that are rotatably attached to the top and bottom of a swing frame 35, and has a large number of through holes. Shaft 3 to which upper pulley 36 is fixed
9 is rotatably fitted into cylinders on both sides of the swing frame 35, and this cylinder is rotatably supported by bearings on the upper part of the frame 2.
As shown in FIGS. 2 and 2, a lever 40 is fixed and a roll 41 is provided at its end.

42 is a camshaft provided on the upper part of the frame 2, and the roll 4 is connected to a cam 43 fixed to this camshaft 42.
1 are brought into contact with each other by appropriate spring pressure, and the delivery belt 38 is displaced from the position shown by the solid line to the position shown by the chain line in FIG. 3 by the rotation of the cam 43.

The other end of the shaft 39 of the pulley 36 passes through the other cylinder of the swing frame 35 and protrudes to the outside as shown in FIG. 2, and is driven by a drive means (not shown) when feeding the tape. The belt 38 is driven in the direction of the arrow in FIG.

Reference numeral 44 in FIG. 3 is a vacuum suction box, with its front opening facing inside the tape delivery side of the belt 38, and a vacuum suction port provided on one side of the box, into which a flexible suction tube 45 is connected. The suction pipe 45 is connected to a vacuum suction device (not shown), and the inside of the box 44 is vacuum-suctioned to adsorb the tape outside the belt 38 to the belt 38, if necessary.

D in FIG. 1 is a tape cutting device, and in the illustrated example, when the pair of left and right cutting rolls 46 is rotated once in the direction of the arrow, the cutting edge 47 of the rolls 46 cuts the roll 46.
Although the tape in between is intended to be cut, any cutting device other than this type can be used.

Further, a rotatable tape receiving roll 48 is provided at the upper front side of the tape feeding belt 38.

The drive means for the inner and outer rotors A and B, the swing means for the arms 10 and 14, the swing means for the swing frame 35, and the drive means for the tape delivery belt 38 are merely examples, and any other drive means may be used. can.

Next, a tape winding method using the tape winding device as described above will be explained based on FIGS. 4 to 7.

Initially, as shown in FIG.
Each part hangs between the cutting rolls 46 of the tape feed belt 38, hangs down from the lower end of the belt 38, and stops when the lower end reaches between the adherend 1 and the pressure roll 11. .

When the device is started in this state, each of the camshafts 22 and 23 shown in FIG.
0 and 21 are released, each arm 10 and 14 rotates toward the adherend 1 by the action of the springs 26 and 27, and the pressure roll 11 and the adhesive roll 15 touch the end of the tape 31 as shown in FIG. Press and attach it to the outside of the adherend 1.

Next, since only the main rotor A rotates in the direction of the arrow as shown in FIG. go.

Further, when the main rotor A is rotating as described above, the vacuum suction action of the feed belt 38 is stopped, and the tape presser roll 3 of the tape feed device C is stopped.
2 is separated from the feed roll 33 to allow the tape 31 to freely feed out, or the feed rolls 33 and 34 are driven to actively feed the tape.

While the tape 31 is being wound around the outside of the adherend 1 in this way, when the tape 31 reaches a predetermined length, the roll 46 of the tape cutting device D
rotates once to cut the tape 31. At this time,
The inside of the vacuum suction box 44 is vacuum-suctioned, and the rear part of the cut tape 31 is attracted to the surface of the belt 38 to prevent it from hanging down.

Furthermore, rotate the main rotor A and rotate it for about 3/4 of the time.
When the rotor B rotates, the auxiliary rotor B also begins to rotate in the same direction at approximately the same speed as the rotor A. As a result, the tape 3 after the pressure roll 11 has moved as shown in FIG.
The rear end of the tape 31 is pasted onto the leading end of the tape 31 by the pasting roll 15. At this time, the vacuum suction box 44 in the delivery belt 38 has stopped vacuum suction, and the camshaft 42 shown in FIG. The rotation of the arm 10 is prevented from being prevented by the belt 38 by letting the belt 38 escape to the rear.

After pasting the tape 31 on the outer periphery of the adherend 1 in this way, the inner and outer rotors A and B are returned to their original positions by rotating the rotor A in the opposite direction and rotating the rotor B in the same direction. , 43 back to its original state,
Each feeding roll 33 of the tape feeding device C,
34 and the tape delivery belt 38 to feed out the tape 31 a predetermined length to achieve the state shown in FIG. After entering the inside, start winding the next tape.

In addition, in the above action, the inner and outer rotors A,
A protrusion is provided at an appropriate location on B, and this protrusion activates a detector such as a limit switch attached to the frame 2, etc., to stop the rotation of the rotors A and B, or the rotation of each camshaft 22, 23, and 42. .

In this invention, as described above, a circular annular main rotor surrounding the outside of a non-rotating adherend is arranged with an appropriate space, and a large diameter circular annular auxiliary rotor surrounding the main rotor is further provided. The rotors are arranged with an appropriate space, each of these rotors is rotatably supported in a gate-shaped frame, and drive means for driving each of these rotors separately is provided,
The main rotor is rotated by the driving means while the end of the tape is pressed and fixed against the adherend by the pressure roll of the movable arm of the auxiliary rotor, and the pressure roll of the movable arm of the main rotor is pressed and fixed. Since the tape is attached by wrapping it around the outer circumference of the garment, the end of the tape can be attached accurately without requiring any manual labor.

In addition, this invention is provided with a tape feeding device and a tape cutting device for cutting the fed tape at the upper part of the frame, and below this cutting device is an endless tape feeding porous belt that can be put into a vacuum suction state as needed. The tape feeding porous belt of this swinging frame enters a vacuum suction state when cutting the belt to prevent the cut tape from sagging, and stops vacuum suction when winding the tape. Since a control means is provided to control the tape to be cut, the tape can be cut reliably, and the tape winding can be started without the risk of the cut tape hanging down and the tape winding being incomplete. Since the vacuum suction is stopped, the tape can be wound smoothly without any problems.

Furthermore, since the auxiliary rotor can also be rotated, after the end of the tape is crimped and fixed to the adherend, the auxiliary rotor and the main rotor are also rotated in the same direction to attach it to the adherend with an adhesive roll. The tape is further crimped with a pressure roll to ensure adhesion.
When the main rotor rotates once and the adhesive roll returns to its original position, the auxiliary rotor also rotates once and the crimping roll returns to its original position, making it the standby position for the next adhesive operation, so the next operation can be started immediately. Since the swing frame retracts at the same time as the pasting roll and the pressure roll begin to move as described above, each roll moves extremely smoothly. In addition, in this invention, since both the main rotor and the auxiliary rotor are rotatably supported by a gate-shaped frame separate from the adherend, the tape can be easily applied even when the adherend is not cylindrical. Can be wrapped. There are effects such as

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of a tape winding device for carrying out the method of the present invention, FIG. 2 is a partially vertical side view of the same as above, FIG. 3 is a vertical front view of the same, and FIGS. 4 to 7 are FIG. 4 is a step-by-step side view showing a method of winding a tape using the device. 1...Adherend, 10, 14...Movable arm, 1
1... Pressing roll, 15... Adhesive roll, 31...
...tape, A...rotor, C...tape feeding device, D...tape cutting device.

Claims (1)

[Claims] 1 A circular annular main rotor surrounding the outside of a non-rotating adherend is arranged with an appropriate space, and a large-diameter circular annular auxiliary rotor surrounding the outside of this main rotor is arranged with an appropriate space. Each of these rotors is rotatably supported within a gate-shaped frame, and driving means for driving each of these rotors separately is provided, and a tape feeding device and a tape feeding device are provided at the top of the frame. A tape cutting device is provided below the cutting device to cut the tape, and a swing frame is provided below the cutting device with an endless tape feeding perforated belt that can be put into a vacuum suction state as needed.
The auxiliary rotor is provided with a movable arm having a pressure roll that presses and adheres the leading end of the tape fed from the tape feeding device to the outside of the adherend, and the main rotor is provided with a movable arm having a pressure roll that presses and adheres the leading end of the tape fed from the tape feeding device to the outside of the adherend. A movable arm is provided with an adhesive roll that wraps and adheres the crimped tape to the adherend as the main rotor rotates, and the perforated tape delivery belt of the swing frame is placed in a vacuum suction state when cutting the tape. A control means is provided to prevent the cut tape from hanging down, to stop vacuum suction when winding the tape, and to return the main rotor's adhesive roll and the auxiliary rotor's pressure roll to their original positions. A tape winding device characterized in that the swing frame is retracted at the time of return of each roll so that it does not interfere with the return of each roll.