JP4022104B2 - Strip piece assembly manufacturing method and strip piece assembly manufacturing apparatus used therefor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a strip piece assembly for forming a strip piece assembly of a predetermined length by sequentially joining a desired number of strip pieces cut from a long strip between non-cut side edges. The present invention relates to a manufacturing method and an apparatus for manufacturing a strip piece assembly used therefor.
[0002]
[Prior art]
For example, as shown in FIG. 8, a belt ply of a tire is formed using a long strip a obtained by rubberizing a plurality of cords as an original fabric. Specifically, the strip a is cut at a desired angle θ with respect to the length direction to form a strip piece a1, while each strip piece a1 is sequentially joined between its non-cut side edges ae. Thus, a long strip piece assembly b in which the cords are arranged at the angle θ with respect to the joining direction is formed.
[0003]
Then, the long strip piece assembly b is once wound on a roll body and then transported to the tire forming process which is the next process, and is supplied to the forming drum while being cut into a predetermined length L according to the tire size. is doing.
[0004]
On the other hand, in recent years, in order to eliminate the generation of intermediate members such as the roll body, a desired number of strip pieces a are joined to directly form a strip piece joined body b1 having a predetermined length L, which is formed into a forming drum. Has been proposed to supply.
[0005]
In this apparatus, as schematically shown in FIG. 9, a transport device c for transporting the strip a in the length direction, a cutting device d for cutting the transported strip a into strip pieces a1, and a strip piece a1 An upstream apparatus portion composed of a supply conveyor e that conveys in the length direction is arranged in a straight line, while a stripping conveyor f that connects the strip pieces a1 to form a strip piece assembly b1 and a strip piece assembly b1 And the downstream side device portion composed of the take-up conveyor h that is carried out to the forming drum g of the next process and the forming drum g, and the upstream device portion intersects with the cutting angle θ in a straight line. They are arranged so as to intersect at an angle α.
[0006]
[Problems to be solved by the invention]
However, in the belt ply, the angle θ is set to various values according to tire specifications, so that the upstream device portion is fixedly arranged and the entire downstream device portion is configured to be pivotable. Each time the tire specification to be manufactured is changed, the intersection angle α is changed in accordance with the cutting angle θ.
[0007]
Therefore, the installation space of the apparatus and the apparatus cost are increased, and much labor and time are required for changing the intersection angle α every time the tire specification is changed.
[0008]
Therefore, the present invention is based on the fact that only the sticking conveyor is pivotally supported at the upstream end thereof so as to be horizontally rotatable and the intersection angle α is changed. It is an object of the present invention to provide a strip piece joined body manufacturing method capable of efficiently performing an arrangement changing operation for each change, and a strip piece joined body manufacturing apparatus used therefor.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 of the present application is an invention of a method for manufacturing a strip-piece assembly, in which long strips having parallel edges on both sides are conveyed in the length direction,
The strip is cut at a cutting angle θ and a fixed length with respect to the length direction to form a strip piece having both ends cut in the transport direction,
The strip piece is conveyed in the length direction by a supply conveyor,
A desired number of strip pieces are connected at the non-cut side edges to form a strip piece assembly having a predetermined length by an adhesive conveyor that intersects the supply conveyor at an angle α and receives the strip pieces from the supply conveyor. And carrying out the strip piece assembly by a take-up conveyor,
The arrangement position of the supply conveyor and the take-up conveyor is stationary,
The affixing conveyor is pivotally supported at the upstream end so as to be horizontally rotatable, the intersection angle α can be adjusted to the cutting angle θ, and the strip piece assembly is formed, and then the orientation facing the take-up conveyor And is carried out to the take-up conveyor.
[0010]
Further, the invention of claim 2 is characterized in that the sticking conveyor is supported so as to be laterally movable in a direction crossing the conveying direction.
[0011]
A third aspect of the present invention is an apparatus for manufacturing a strip piece assembly, a transport device for transporting a long strip having parallel side edges in the length direction, and
A cutting device that forms strip pieces having both ends cut in the conveying direction by cutting the strip into a predetermined length at a cutting angle θ and a fixed length with respect to the length direction;
The supply conveyor that conveys the strip pieces in the length direction and the supply conveyor intersect at an angle α and receive the strip pieces from the supply conveyor, and connect a desired number of strip pieces at the non-cut side edges. An affixing conveyor forming a strip strip assembly of length;
A take-up conveyor for receiving and carrying out the strip piece assembly from the affixing conveyor,
The arrangement position of the supply conveyor and the take-up conveyor is stationary,
The affixing conveyor is pivotally supported at the upstream end so as to be horizontally rotatable, the intersection angle α can be adjusted to the cutting angle θ, and the strip piece assembly is formed, and then the orientation facing the take-up conveyor It is characterized by rotating in the direction.
[0012]
According to a fourth aspect of the present invention, the sticking conveyor is supported so as to be laterally movable in a direction crossing the transport direction.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an apparatus for producing a strip piece assembly of the present invention, and FIGS. 2 and 3 are side views showing a part thereof.
[0014]
Here, the strip piece assembly manufacturing apparatus 1 (hereinafter referred to as manufacturing apparatus 1), as shown in FIG. 6, cuts a long strip S with parallel edges Se at a cutting angle θ with respect to the length direction. And after forming a strip piece S1 by cutting to a fixed length K, a desired number of strip pieces S1 are sequentially joined between the non-cut side edges Se, thereby a predetermined length L. The strip piece assembly SS is formed. In this example, the strip piece assembly SS is a member for forming a belt of a tire. In the strip S, a plurality of steel cords are embedded in rubber in the length direction. Further, the cutting angle θ is changed every time the tire specification to be manufactured is changed.
[0015]
Next, as shown in FIGS. 1 to 3, the manufacturing apparatus 1 includes a conveying device 2 that conveys a long strip S in the length direction, and a cutting device 3 that cuts the strip S into strip pieces S1. And a supply conveyor 4 for conveying the strip piece S1 in the length direction, and a strip for receiving a strip piece S1 from the supply conveyor 4 and sequentially joining the desired number of strips to form a strip piece assembly SS having a predetermined length L. A conveyor 5 and a take-up conveyor 6 that takes out and transports the strip piece assembly SS from the sticking conveyor 5 are configured.
[0016]
In this example, a case where a strip forming device 8 is arranged on the upstream side of the conveying device 2 via a festoon 7 is illustrated, and the strip forming device 8 supplies a plurality of steel cords in an aligned manner. A cord stand 8A, and an extruder 8B that rubberizes the supplied steel cord to form a long strip S having parallel edges on both sides.
[0017]
Instead of the strip forming device 8, a strip supply device for rewinding the strip S from a roll roll of the strip S formed in advance can also be used.
[0018]
Moreover, the said conveying apparatus 2 is a belt conveyor, Comprising: While providing the upstream conveyor 2A and the downstream conveyor 2B in series, the said cutting device 3 is arrange | positioned between this conveyor 2A, 2B.
[0019]
The cutting device 3 includes a cutter 11 that cuts the strip S at a cutting angle θ with respect to the length direction between the conveyors 2A and 2B. In this example, the cutting device 3 has a support shaft 13 pivoted vertically on an upper frame member 12U of the portal frame 12 straddling the transport device 2, as conceptually shown in FIG. The support shaft 13 is connected to a motor M1 fixed to the upper frame member 12U via a transmission means 14 using, for example, a gear, and the lower end thereof travels the cutter 11 via a guide means 15. It is attached freely. The guide means 15 includes a guide rail 16 having a guide groove 16A and a traveling piece 17 that can travel horizontally along the guide groove 16A. A lower end of the cutter holder 18 extending from the traveling piece 17 is, for example, a disc. A cylindrical cutter 11 is pivotally mounted along the running direction. The traveling piece 17 can travel by a motor M2 fixed to the guide rail 16.
[0020]
Therefore, the cutting device 3 can freely adjust the direction of the guide rail 16, that is, the cutting angle θ of the cutter 11 around the support shaft 13 by the operation of the motor M <b> 1. The cutter 11 may be a guillotine-shaped pressing blade that descends and pushes the strip S. In such a case, a cylinder or the like can be suitably used as a lifting tool for moving the cutter 11 up and down. The transport device 2 is provided with adjusting means (not shown) for adjusting the cutting length K to the strip S by controlling the feed amount from the conveyor 2A to the conveyor 2B.
[0021]
Next, the supply conveyor 4 further conveys the strip piece S1 from the conveyor 2B in the length direction and delivers the strip piece S1 to the designated position PL of the sticking conveyor 5.
[0022]
As conceptually shown in FIG. 5, the supply conveyor 4 is disposed on a table-like frame 19 that straddles the sticking conveyor 5 via an elevating means 20. In this example, the supply conveyor 4 is a belt conveyor having a conveyance surface facing downward, and is arranged in a straight line with the conveyance device 2 and has a magnet (not shown) attached to the belt inner circumferential surface side. ), The strip piece S1 can be adsorbed and conveyed on the lower surface of the belt.
[0023]
Accordingly, the supply conveyor 4 can receive the strip piece S1 from the conveyor 2B at the transferable rising position Y1 where the conveying surface is substantially the same height as the upper surface of the strip piece S1 on the conveyor 2B, while adsorbing it. It can be conveyed to a position PU above the designated position PL. The supply conveyor 4 is provided with a position detection sensor (not shown) that detects the strip piece S1 at the position PU and stops its conveyance.
[0024]
Thereafter, the supply conveyor 4 descends to the lowered position Y2 where the adsorbed strip piece S1 contacts the pasting conveyor 5, and transfers the strip piece S1 to the designated position PL on the pasting conveyor 5. In this example, the transfer is performed by moving the magnet away from the inner surface of the belt by a cylinder or the like and releasing the adsorption to the strip piece S1, but the magnet is formed of an electromagnet and energized. You may cut it.
[0025]
In this example, the elevating means 20 is fixed to the upper plate 19A of the frame 19 and has an elevating tool 20A such as a cylinder having the supply conveyor 4 attached to the lower end of the rod, and the upper end of the elevating means 20 from the upper surface of the supply conveyor 4 The case where it comprises from the guide shaft 20B inserted in the guide hole 19B provided in the board 19A is illustrated.
[0026]
Next, the affixing conveyor 5 intersects the supply conveyor 4 at an angle α, receives the strip pieces S1 from the supply conveyor 4, and sequentially connects the strip pieces S1 at the uncut side edges Se. A strip piece assembly SS having a predetermined length L is formed. The affixing conveyor 5 is a belt conveyor whose conveying surface is lower than the conveying surface of the conveying device 2, and the strip pieces S1 are sequentially received from the conveying device 2 via the supply conveyor 4 at the designated position PL. It is.
[0027]
Here, the crossing angle α of the sticking conveyor 5 is the same angle as the cutting angle θ, and the sticking conveyor 5 connects the strip piece S1 received at the designated position PL in the joining direction (the transfer direction of the sticking conveyor). Are transported intermittently at a predetermined pitch. As a result, the strip piece S1 received at the designated position PL is sequentially joined to the preceding strip piece S1 received at the side edge Se. When the predetermined pitch matches the length L1 in the joining direction of the strip piece S1, the strip piece S1 is joined by abutting the side edges S, and when the predetermined pitch is smaller than the length L1, the side edges S are overlapped and joined. Is done. The predetermined pitch is freely controlled by motor control of the sticking conveyor 5.
[0028]
And in this invention, in order to form various strip piece assembly SS which changed cutting angle (theta) according to the tire specification, the arrangement position of the supply conveyor 4 and the take-up conveyor 6 is made stationary, that is, fixed arrangement. At the same time, the affixing conveyor 5 is pivotally supported at least at its upstream end A1 so as to be horizontally rotatable.
[0029]
In this example, the case where the said sticking conveyor 5 is supported so that horizontal movement is possible in the direction which crosses the conveyance direction so that the said horizontal rotation is possible is illustrated. That is, in this example, as shown in FIG. 3, the sticking conveyor 5 is pivotable so as to be horizontally rotatable around an axis J by a laterally movable base 23 that can be laterally moved and a pivoting portion 24 provided on the laterally movable base 23. It is comprised with the conveyor main body 5A supported.
[0030]
The laterally movable table 23 is slidably held by a pair of rail-shaped linear bearings 25 laid in a direction crossing the conveying direction of the sticking conveyor 5, in this example, in a direction substantially perpendicular to the conveying direction. . Further, on the upper surface of the lateral movement table 23, an arc-shaped bearing portion 26 which is curved and extends in an arc shape centering on the axis J is laid, and in this example, the lower end of the leg portion of the conveyor body 5A is slidable. Hold on.
[0031]
The conveyor body 5A is pivotally supported by the pivoting portion 24 at the upstream end A1. The lateral movement of the lateral movement table 23 and the horizontal rotation of the conveyor body 5A are performed by appropriate driving means having a known structure including motors M3 and M4 provided on the lateral movement table 23, for example.
[0032]
Next, the operation of the sticking conveyor 5 will be described. As shown in FIGS. 7A and 7B, when the cutting angle is changed from θ to θ ′ by changing the specifications of the tire to be manufactured, that is, changing the stage, first, the conveyor body 5A is horizontal around the axis J. Rotate and change the intersection angle from α (= θ) to α ′ (= θ ′). Thereafter, the lateral movement table 23 is moved laterally, and alignment is performed so that the conveying surface of the conveyor body 5 </ b> A comes below the position PU of the supply conveyor 4.
[0033]
As a result, the conveyor body 5A can receive the strip piece S1 having the cutting angle θ ′ at the predetermined position PL on the conveying surface, and the strip piece S1 is intermittently fed at a predetermined pitch to strip on the sticking conveyor 5. The single joined body SS can be formed.
[0034]
Further, after the strip piece assembly SS is formed, horizontal rotation and lateral movement in a direction opposite to the take-up conveyor 6 are performed, and the pasting conveyor 5 is aligned with the take-up conveyor 6 in a straight line. Thereby, the strip piece assembly SS can be carried out to the take-up conveyor 6.
[0035]
In this way, the manufacturing apparatus 1 includes various strip piece assemblies in which the conveying device 2, the cutting device 3, the supply conveyor 4, the take-up conveyor 6, and the forming drum on the downstream side are fixedly arranged, but the cutting angle θ is different. SS can be manufactured, and the installation space of the apparatus and the apparatus cost can be reduced. Moreover, since the change of the arrangement is only the affixing conveyor 5, it is possible to improve the efficiency of the arrangement changing operation, and it is possible to maintain the high positional accuracy of the installation.
[0036]
As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.
[0037]
【The invention's effect】
As described above, in the present invention, only the sticking conveyor is pivotally supported at its upstream end so as to be horizontally rotatable, so that the installation space and cost of the device can be reduced, and the layout change work for each tire specification change. Can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of an apparatus for producing a strip piece assembly of the present invention.
FIG. 2 is a side view showing a part thereof.
FIG. 3 is a side view showing a sticking conveyor and a take-up conveyor.
FIG. 4 is a perspective view conceptually showing a cutting device.
FIG. 5 is a perspective view conceptually showing a supply conveyor.
FIG. 6 is a diagram illustrating the formation of a strip piece assembly.
7A and 7B are diagrams illustrating the operation of the sticking conveyor.
FIG. 8 is a diagram showing a method for manufacturing a belt ply.
FIG. 9 is a diagram illustrating the problem.
[Explanation of symbols]
2 Conveying device 3 Cutting device 4 Supply conveyor 5 Pasting conveyor 6 Take-up conveyor S Strip S1 Strip piece Se Side edge SS Strip piece assembly

Claims (4)

Convey long strips with parallel edges on both sides,
The strip is cut at a cutting angle θ and a fixed length with respect to the length direction to form a strip piece having both ends cut in the conveying direction, and the strip piece is lengthened by a supply conveyor. Transport,
A desired number of strip pieces are connected at the non-cut side edges to form a strip piece assembly having a predetermined length by an adhesive conveyor that intersects the supply conveyor at an angle α and receives the strip pieces from the supply conveyor. And carrying out the strip piece assembly by a take-up conveyor,
The arrangement position of the supply conveyor and the take-up conveyor is stationary,
The affixing conveyor is pivotally supported at the upstream end so as to be horizontally rotatable, the intersection angle α can be adjusted to the cutting angle θ, and the strip piece assembly is formed, and then the orientation facing the take-up conveyor And a strip piece assembly manufacturing method, wherein the strip piece assembly is rotated to the take-out conveyor. The manufacturing method of the strip piece assembly according to claim 1, wherein the sticking conveyor is supported so as to be laterally movable in a direction crossing the conveying direction. A transport device for transporting long strips having parallel edges on both sides in the length direction;
A cutting device that forms strip pieces having both ends cut in the conveying direction by cutting the strip into a predetermined length at a cutting angle θ and a fixed length with respect to the length direction;
The supply conveyor that conveys the strip pieces in the length direction and the supply conveyor intersect at an angle α and receive the strip pieces from the supply conveyor, and connect a desired number of strip pieces at the non-cut side edges. An affixing conveyor forming a strip strip assembly of length;
A take-up conveyor for receiving and carrying out the strip piece assembly from the affixing conveyor,
The arrangement position of the supply conveyor and the take-up conveyor is stationary,
The affixing conveyor is pivotally supported at the upstream end so as to be horizontally rotatable, the intersection angle α can be adjusted to the cutting angle θ, and the strip piece assembly is formed, and then the orientation facing the take-up conveyor The apparatus for manufacturing a strip piece assembly is characterized in that it is rotated in a straight line. 4. The apparatus for manufacturing a strip piece assembly according to claim 3, wherein the sticking conveyor is supported so as to be laterally movable in a direction crossing the conveying direction.

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