JP2000355308A - Flyer device of packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control rotation and prevent failures in packaging by providing a flyer side frictional part along a flyer, a flyer side gear along the flyer side frictional part, a roller side friction part along a rotation driving roller and a roller side gear along the roller side friction part. SOLUTION: An annular recessed groove 13 is formed along an entire outer periphery of a flyer 10, and a gear 14 comprising a string of teeth is formed along an outer periphery of the flyer of the groove 13. A rotation driving roller 30 comprises annular protrusions 32 along an outer periphery of a roller body 31, and the protrusions 32 are brought into frictional engagement with the groove 13 provided along the outer periphery of the flyer 10 to allow rotational power to be transmitted. Gears 33 of a tooth-formed module to be engaged with the gear 14 formed at both side ends of the outer periphery of the flyer 10 are formed on the annular protrusions 32 along the outer periphery of the rotation driving motor 32. Thus timing of starting and stopping rotation of the flyer can be highly accurately controlled, thereby preventing failures in packaging works to be packaged from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flyer device for packaging a bundle of electric wires transferred from an automatic binding machine to a packaging machine.

[0002]

2. Description of the Related Art FIGS. 2A and 2B show an electric wire bundle wrapping machine 1. FIG.
FIG. 1 is a side view showing a conventional example of FIG. 1 and a cross-sectional view taken along line BB. Wire bundle entrance 2 by removing a part of the circumference of the ring shape
Is rotatably supported. As shown in FIG. 2 (b), for example, an annular concave groove 3 having a V-shaped cross section is formed over the entire outer periphery of the ring-shaped flyer 1 partially missing.

[0003] The flyer 1 is rotatably supported by an appropriate number of guide rollers 4 which engage with the annular groove 3 on the outer periphery. Further, the flyer 1 is transmitted at a required rotational speed from a rotational power source (not shown) by a suitable number of rotational drive rollers 5 radially disposed in frictional contact with the annular groove 3 on the outer periphery. It has become.

As shown in FIG. 2B, each of the rotary drive rollers 5 is provided with an annular projection 5a having a mountain-shaped or convex cross-section over the entire outer circumference thereof. The rotational power is transmitted to the flyer 1 by frictionally engaging the annular groove 3 on the outer circumference of the flyer 1.

Therefore, in FIG. 2A, the wire bundle 6 bundled in an annular shape is transferred from the automatic binding machine as a work to be packaged, is positioned at a predetermined position of the packaging machine, and starts the packaging operation by the flyer 1. .

When the apparatus is driven, a tape-shaped wrapping paper 7 indicated by a chain line in the figure is supplied to the flyer 1. When each of the rotary drive rollers 5 is activated and turned on, their rotational frictional force is transmitted to the flyer 1, and the flyer 1 rotates at a required number of revolutions, for example, counterclockwise in FIG. Packaging is started by wrapping with paper 7 or the like. That is, the flyer 1 rotates so as to cross over the inner and outer circumferences of the wire bundle 6 and wraps the wrapping paper 7 in a wrapping manner while traversing the wire bundle 6 in a predetermined direction.

[0007] When the packaging of one wire bundle 6 is completed, the flyer 1 stops rotating. The completed wire bundle 6 is taken out from the wire bundle inlet / outlet 2 at the peripherally missing portion of the flyer 1, and this is repeated for each wire bundle 6.

[0008]

However, FIG.
The conventional fryer device of the packaging machine shown in FIGS. 1A and 1B has the following problems.

One is that the rotation of the plurality of rotary drive rollers 5 is transmitted to the flyer 1 with a contact frictional force, so that the accuracy of the rotation transmission to the flyer 1 tends to be reduced.

That is, the flyer 1 has its annular groove 3
The circular projection 5a on the side of the rotary drive roller 5 comes into circular contact, and starts and stops rotating by receiving the rotational frictional force from the rotary drive roller 5. Therefore, when the abrasion progresses in the circular contact portions on both the driving side and the driven side, a change in the rotational friction force causes a shift in the timing of starting / stopping the rotation of the flyer 1. As a result, a shift occurs between the rotational position and the stop position of the flyer 1, which is likely to cause a packaging failure in the wire bundle 6.

One of the problems is that when the rotational speed of the rotary drive roller 5 is increased to increase the packaging efficiency, a slip occurs between the flyer 1 and the rotary drive roller 5, and similarly, the packaging failure occurs. It is easy to cause.

Further, as another problem, since the rotation is transmitted to the flyer 1 by the contact frictional force, the load on the rotary drive roller 5 is large, and it is likely to cause a device failure with a long use.

Accordingly, an object of the present invention is to provide a flyer device for a packaging machine which is capable of preventing defective packaging in a wrapping of a wire bundle, for example, by improving the timing accuracy of start / stop of rotation of the flyer. To provide.

[0014]

In order to achieve the above object, a flyer device for a packaging machine according to the present invention has a C-shape in which an opening is formed by removing a part of the circumference of a ring. The flyer is rotatably supported by a plurality of guide rollers contacting several places on the outer periphery, and the flyer is rotated by a rotational friction force by a plurality of rotary drive rollers contacting several places on the outer periphery. An apparatus for winding and wrapping wrapping paper around the entire circumference of the work to be wrapped by rotating the flyer while positioning the work to be wrapped in an annular shape so as to cross the opening of the flyer, A flyer-side friction portion is provided along the outer periphery of the flyer, and a fryer-side gear portion having a continuous tooth profile is provided along the flyer-side friction portion. In which has been provided with a roller-side gear unit that meshes with the flyer side gear unit along the roller side friction part provided and the roller side frictional portion which engages the Ya-side friction portion.

With the above construction, the rotation is transmitted to the flyer by the rotary drive roller by the frictional force between the two friction portions and the meshing force between the two gear portions, so that the rotation of the flyer is started and stopped. Timing can be controlled with high precision, and packaging defects do not occur on the work to be packaged.

According to a second aspect of the present invention, there is provided a flyer device for a packaging machine, wherein the gear portions on the flyer side are provided in two parallel rows on both sides of the friction portion, and the gear portions on the roller side are provided on both sides of the friction portion. It is characterized by being provided in two parallel rows.

With the above configuration, the gear portions of both the flyer and the rotary drive roller are provided in two parallel rows, respectively.
In addition to doubling the rotation transmission function by the engagement force, it is possible to eliminate the concern that the engagement between the flyer and the rotation drive roller may be disengaged.

Further, in the flyer device of the packaging machine according to the third aspect, one of the flyer-side friction portion and the roller-side friction portion engaged with each other is formed as an annular groove and the other is formed as an annular projection. It is characterized by having.

According to the above configuration, when the friction portion on the flyer side, which is one of the friction portions of the flyer and the rotary drive roller, which is engaged with each other, is formed in, for example, an annular groove, the rotation portion on the other side of the rotation is formed. The friction portion on the drive roller side may be formed as an annular projection, or may have the reverse structure.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a preferred embodiment of a fryer apparatus for a packaging machine according to the present invention, a fryer apparatus for packaging a wire bundle will be described in detail with reference to the drawings.

FIGS. 1A and 1B are a side view and an enlarged cross-sectional view taken along line AA of the flyer device of the present embodiment. As shown in FIGS. 2A and 2B of the conventional example, the flyer 10 of the main part of the apparatus has a substantially C-shaped ring shape having a required diameter, and a part of the periphery of the flyer body 11 is omitted. The opening at the portion where it was made is the wire bundle entrance 12.

An annular concave groove 13 having a substantially inverted V-shaped cross section is formed over the entire outer periphery of the flyer 10 having a substantially C-shape. A part 14 is formed.

The flyer 10 having such a shape is rotatably supported by an appropriate number of guide rollers 20 engaging with the annular groove 13 on the outer periphery.

The flyer 10 is also driven by a rotary power source (not shown) of a motor or the like by an appropriate number of rotary drive rollers 30 radially arranged and in frictional engagement with the annular groove 13 on the outer periphery. Is transmitted at a required rotation speed. A plurality of rotary drive rollers 30
Is directly connected to a motor rotational power source via a speed reduction mechanism or the like, and the rotational power is
To the mechanism.

Therefore, the rotary drive roller 30 is provided with an annular projection 32 having a mountain-shaped or convex cross-section over the entire circumference of the roller body 31, and the annular projection 32 provided on the outer circumference of the flyer 10. The frictional engagement with the motor 13 makes it possible to transmit rotational power to the flyer 10 at a required rotational speed.

Further, on both left and right sides of the annular projection 32 on the outer periphery of the rotary drive roller 30, gear portions 33 of a tooth-shaped module are formed which mesh with the two rows of gear portions 14 formed on both ends of the outer periphery of the flyer 10. Have been.

Therefore, with the above configuration, the fryer device of the packaging machine of the present embodiment operates and operates as follows.

As shown in FIG. 1 (a), the wire bundle 40 bundled in an annular shape is transferred from the automatic bundler as a work to be packaged, and is positioned at a predetermined position of the packaging machine.
We will start the packaging work with 0

When the apparatus is driven, the tape-shaped wrapping paper 7 shown in FIG. When each of the rotation drive rollers 30 is activated and turned on, their rotational frictional force is transmitted to the flyer 10, and the flyer 1 rotates at a required number of revolutions, for example, in a counterclockwise direction in FIG.
The wire bundle 40 is wrapped around the wrapping paper 7 to start wrapping.
The flyer 1 rotates so as to cross over the inner and outer circumferences of the wire bundle 40 and winds the wrapping paper 7 while traversing in a predetermined direction relative to the wire bundle 40.

When the packaging of one wire bundle 40 is completed, the flyer 10 stops rotating. The wrapped electric wire bundle 40 is inserted into the electric wire bundle entrance / exit 12 at the peripherally missing portion of the flyer 10.
And this is repeated for each wire bundle 40.

During the packaging of the wire bundle 40, the flyer 10 receives rotational power by the plurality of rotary drive rollers 30 due to the frictional force of the friction portion and the meshing force of the gear portion. The frictional force is transmitted by the annular projection 32 on the outer periphery of the rotary drive roller 30 engaging with the annular groove 13 on the outer periphery of the flyer 10.
The meshing force is applied to each of the gear portions 3 on both sides of the outer periphery of the rotary drive roller 30.
3 meshes with each gear portion 14 on both sides of the outer periphery of the flyer 10 for transmission.

Therefore, the timing of starting and stopping the rotation of the flyer 10 for one wire bundle 40 is controlled.
It will follow off. The rotation on / off of the rotation drive roller 30 is electronically controlled together with the on / off control of the motor rotation power source.

As described above, the controlled rotation drive roller 3
Flyer 1 with high accuracy on / off timing of rotation 0
Synchronize to zero. Such precise timing operation control of the start and stop of the rotation of the flyer 10 can be achieved by the gear portion 33 of the rotary drive roller 30 being engaged with the gear portion 14.

As a result, the rotation start position and the rotation stop position of the flyer 10 are accurately controlled, and high-quality packaging can be realized without causing the wrapping of the wrapping paper 7 to be too large or small over the entire circumference of the wire bundle 40. There is.

Further, since the gear portion 33 of the rotary drive roller 30 is meshed with the gear portion 14 of the flyer 10, even when the rotational speed of the rotary drive roller 30 is increased to increase the packaging efficiency, the rotational speed is increased. Inconvenience such as slippage does not occur between the rotary drive roller 30 and the flyer 10 due to the meshing of the two gear portions 14 and 33.

As for the load on the rotary drive roller 30, the annular protrusion 32 of the friction portion and the gear portion 3 on both sides are used.
3 and the transmission structure of FIG. 2 (a) and FIG. 2 (b), which is significantly reduced as compared with the conventional structure of transmitting only the contact frictional force. There is.

[0037]

As described above, according to the first aspect of the present invention, the flyer device of the packaging machine according to the first aspect of the present invention transmits the rotation to the flyer by the rotary drive roller with the frictional force between the two frictional portions and the frictional force between the two frictional portions. Since the rotation is performed by the meshing force between the gear portions, the timing of the start and stop of the rotation of the flyer can be controlled with high accuracy, and packaging failure does not occur in the bundle of wires of the work to be packaged.

Further, in the flyer device of the packaging machine according to the second aspect, since the gear portions of both the flyer and the rotary drive roller are provided in two parallel rows on both sides, the rotation transmitting function by the meshing force is doubled.

Furthermore, in the flyer device of the packaging machine according to the third aspect, when the friction portion on both the flyer and the rotary drive roller is formed with a friction portion on the flyer side, for example, in an annular concave groove, the rotary drive of the counterpart is performed. The frictional portion on the roller side can be formed as an annular projection, or may have an inverted structure, which allows for a high degree of design freedom.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are a main part side view and an essential part cross-sectional view taken along line AA showing an embodiment of a fryer device of a packaging machine according to the present invention.

FIGS. 2 (a) and 2 (b) are a side view and a cross-sectional view taken along line BB of a conventional flyer device of a packaging machine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 flyer 11 flyer main body 12 wire bundle entrance / exit 13 annular concave groove (flyer side friction portion) 14 gear portion 20 guide roller 30 rotation drive roller 31 roller body 32 annular projection (roller side friction portion) 33 gear portion 40 wire bundle

Claims (3)

[Claims] 1. A C-shaped flyer having an opening formed by cutting off a part of an annular periphery is rotatably supported by a plurality of guide rollers contacting several places on the outer periphery thereof, and the flyer is provided on the outer periphery. Are rotated by the rotational frictional force by a plurality of rotary drive rollers that contact several places of the flyer, and the flyer is rotated in a state where the work to be packaged in a ring is positioned so as to cross the opening of the flyer. A fryer device of a packaging machine that winds and wraps the wrapping paper around the entire circumference of the workpiece to be wrapped, wherein a flyer-side friction portion is provided along the outer periphery of the flyer, and a tooth-shaped friction portion is formed along the flyer-side friction portion. A continuous flyer-side gear portion is provided, while a roller-side friction portion that engages with the flyer-side friction portion is provided along the outer periphery of the rotary drive roller, and along the roller-side friction portion. Flyer device of the packaging machine, characterized in that it is provided with a roller-side gear unit that meshes with the serial flyer side gear unit. 2. The gear part on the flyer side is provided in two parallel rows on both sides of the friction part, and the gear parts on the roller side are provided in two parallel rows on both sides of the friction part. Item 2. A flyer device for a packaging machine according to item 1. 3. The friction part on the flyer side and the friction part on the roller side which engage with each other, one of them being an annular concave groove and the other being an annular projection. Fryer equipment for packaging machine.