JPH06205887A - Apparatus for manufacturing hand rail for passenger conveyer - Google Patents

Abstract

PURPOSE:To enable a canvas supply member to be exchanged without stopping a manufacturing line in a line for manufacturing a hand rail for a passenger conveyer. CONSTITUTION:A canvas 2 supplied from a canvas pad 21 is trained around the upper part of an upper roller 24 rotated integrally with an upper pulley 25 and the lower part of a lower roller 24 located between the upper rollers 24... and rotated integrally with a lower pulley 25 vertically moved according to the supply condition of the canvas 2. Thus, even if the supply of the canvas 2 wound around the canvas pad 21 is stopped, the lower roller 24 is lifted to a predetermined position to continue the supply of the canvas 2 to a canvas forming section, so that the canvas pad 21 can be exchanged without stopping a manufacturing line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a passenger conveyor handrail, and more particularly to an apparatus for manufacturing a passenger conveyor handrail with high yield.

[0002]

2. Description of the Related Art Conventionally, there is a passenger conveyor such as an escalator or an electric walkway that moves passengers by placing them on steps. The passenger conveyor is provided with handrails or hand belts for endless movement and gripping of the passenger without loss of balance as well as the step of placing and moving the passenger.

Further, the passenger conveyor handrail 1 is
As shown in FIG. 3, a belt-like member having a substantially C-shaped cross section in which a rubber member 5a is coated on a core member 4 which is a laminated body of canvas 2 with tension members 3 interposed therebetween, and is endlessly rotated. Used by being attached to the mechanism. In the manufacturing apparatus for a passenger conveyor handrail having such a structure, as shown in FIG. 5, a canvas pad 53 around which the canvas 2 is wound is attached to the canvas supply unit 51 that supplies the canvas 2 to the canvas forming unit 52. The canvas 2 is directly supplied from the canvas pad 53 to the canvas forming section 52.

However, such a canvas pad 53
When all of the canvas 2 wound around was discharged, the canvas 2 could not be replaced with the canvas pad 53 fully wrapped without stopping the manufacturing line for manufacturing the passenger conveyor handrail. As a result, the manufacturing process of the passenger conveyor handrail 1 becomes a discontinuous operation, resulting in a problem that work efficiency deteriorates.

[0005]

[PROBLEMS] The present invention has been made to solve such a conventional problem, and when replacing a cloth supply member in a passenger conveyor handrail manufacturing line, the canvas feeding member can be replaced without stopping the manufacturing line. An object of the present invention is to provide a manufacturing device for a handrail for a passenger conveyor that can perform

[0006]

SUMMARY OF THE INVENTION An apparatus for manufacturing a handrail for a passenger conveyor according to the present invention, which achieves the above object, comprises:
In a manufacturing device for manufacturing a handrail for a passenger conveyor by continuously supplying a belt-shaped canvas from a canvas supply unit to a canvas forming unit, an upper pulley group and a first pulley group corresponding to the upper pulley group that are interlocked with the canvas supply unit by belt drive. A second lower pulley group that is vertically movable between the lower pulley group and the upper pulley group, an upper roller group that rotates integrally with the upper pulley group, and a lower roller group that rotates integrally with the second lower pulley group; An upper pulley group, a first lower pulley group, and a belt that is alternately wound around a second lower pulley group are provided.

[0007]

Operation: The canvas supplied from the canvas supply unit is wrapped around the upper roller group that rotates integrally with the upper pulley group, and is located between the upper roller groups, depending on the supply state of the canvas supplied from the canvas supply unit. By winding it around the lower roller group that rotates integrally with the second lower pulley group that moves up and down, the second lower roller group rises to a predetermined position even if the canvas supplied from the canvas supply unit stops. Therefore, the supply of canvas to the canvas forming section is continued.

[0008] With this, the canvas pad can be replaced without stopping the production line, so that the passenger conveyor handrail can be manufactured with high yield.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment to which a manufacturing apparatus for a passenger conveyor handrail according to the present invention is applied will be described below with reference to the drawings. Handrail production line for passenger conveyors 1
As shown in FIG. 1, reference numeral 0 denotes a tension member supply unit 11 for supplying the tension member 3, a canvas supply unit 12 for continuously supplying the belt-shaped canvas 2, and a core having a substantially C-shaped cross section for the canvas 2 and the tension member 3. Winding for winding the canvas forming part 13 for forming the body 4, the decorative rubber layer covering part 14 for covering the core body 4 with the rubber material 5a, and the core body 4 covered with the rubber material 5a, that is, the handrail 1 for the passenger conveyor. It is composed of a take part 15.

The tension member supply section 11 is used for the canvas 2
Is provided with a plurality of tension member bobbins for supplying a plurality of tension members 3 in parallel to each other.
In order to apply tension to the tension member 3 supplied to the tension member 3, there is provided a roller with a tension generating brake including a brake unit such as a powder brake or a facing brake.

The canvas supply section 12 is shown in FIGS. 2 (a), 2 (b),
As shown in (c), a plurality of canvas pads 21 as a canvas supply member are provided to supply a plurality of belt-shaped canvases 2 to a canvas forming section 13 described later, and from this canvas pad 21 to the canvas forming section 13. Roller 22 with a brake for tension generation, which is composed of a brake unit such as a powder brake or a facing brake in order to apply tension to the supplied canvas 2.
Is provided. Further, between the canvas pad 21 and the tension generating brake roller 22 as described above, the canvas 2 having the same outer diameter and having a predetermined length, for example, a maximum length of 15 m is wound around. An accumulator device 23 including rollers 24 and the like is provided in the canvas supply unit 12.

The accumulator device 23 is shown in FIG.
As shown in (b), upper rollers 24A, 24B and 24C which are upper roller groups for winding the canvas 2 and lower rollers 24D and 24E which are lower roller groups are provided respectively. The upper rollers 24A, 24B, 24C are
Fixed base plate 26 provided in the canvas supply unit 12
Members 27A, 27 fixed to the upper part of the table at regular intervals
B and 27C are rotatably supported via shafts. The lower roller 24D is pivotally attached to one end of the moving base plate 29, and the lower roller 24E is pivotally attached to one end of the moving base plate 30.

Therefore, since the lower rollers 24D and 24E are not fixed to the fixed base plate 26, the lower rollers 24D and 24E can be moved up and down along the surface of the fixed base plate 26. And the lower roller 2
4D is located between the upper rollers 24A and 24B, and the lower roller 24E is located between the upper rollers 24B and 24C. This causes the canvas 2 to move the upper rollers 24A, 24B,
24C and the lower rollers 24D and 24E are staggered and supplied to the canvas forming section 13.

On the other hand, such upper rollers 24A, 24
Each pulley 25 is provided in the accumulator device 23 in order to rotationally drive the B, 24C and the lower rollers 24D, 24E. As shown in FIG. 2C, the upper pulleys 25A, 25B, and 25C, which are the upper pulley group, are rotatably supported by support members 27A, 27B, and 27C via shafts. Upper pulley 25A, 25B, 25
A lower pulley 25 which is a first lower pulley group with respect to C
H, 25I, and 25J are provided on the same straight line in the vertical direction. The lower pulleys 25H, 25I, 25J are rotatably supported by supporting members 27H, 27I, 27'J fixed to the lower portion of the fixed base plate 26 at regular intervals via shafts. The shaft provided on the support member 27'J is driven by a drive motor or the like.

The lower pulley 25, which is the second lower pulley group.
D and 25F are axially attached to the moving base plate 29 to which the lower roller 24D is axially attached. The lower pulley 25D is attached to the same position as the lower roller 24D, and the lower pulley 25F is attached to the other end of the moving base plate 29. The lower pulley 25E and the pulley 25G, which are the second lower pulley group, are pivotally mounted on the moving base plate 30 to which the lower roller 24E is pivotally mounted. The lower pulley 25E is attached to the same position as the lower roller 24E, and the lower pulley 25G is attached to the other end of the moving base plate 30.

The mounting position of each pulley 25 is located closer to the fixed base plate 26 than the mounting position of each roller 24. In order to wind the driving belt 28 around each pulley 25 having such a structure in a drivable manner, the upper pulleys 25A,
5B, 25C, lower pulleys 25F, 25G are wound around the upper portion, and lower pulleys 25D, 25E, 25H, 25I, 25
J is wrapped around the bottom. Further, in order to wind the canvas 2 around each roller 24 in a state in which it can be supplied to the canvas forming unit 13, the upper rollers 24A, 24B and 24C are wound around the upper part, and the lower rollers 24D and 24E are wound around the lower part.

Therefore, the upper rollers 24A, 24B,
24C and the upper pulleys 25A, 25B and 25C, and the lower rollers 24D and 24E and the lower pulleys 25D and 25E,
Since the rollers 24 are integrally formed, the belts 28 can rotate the rollers 24 at the same peripheral speed. As a result, the accumulator device 23 can take out the canvas 2 from the canvas pad 21 and send the canvas 2 to the canvas forming unit 13 without causing tension fluctuation due to slip of the canvas 2. Further, a lower pulley 25E and a pulley 25G that are axially attached to the moving base plate 30, and a lower pulley 25D and a pulley 2 that are axially attached to the moving base plate 29.
Since 5F is held in a state of being hung on the belt 28, it can be freely moved up and down.

Such a tension member supply section 11
In the canvas forming unit 13, the material sent from the canvas and the canvas supplying unit 12 is a blower device for blowing hot air of 30 to 40 ° C., and the canvas laminate is cross-sectional approximately C while the bonding between the canvases 2 is attempted.
It is formed by forming a letter shape into a shape and a forming roll forming at a speed of about 0.9 m / min. The decorative rubber layer coating portion 14 includes a main body (not shown) equipped with a screw or the like for feeding the rubber material 5a forming the pre-kneaded decorative rubber layer 5, and the rubber material 5a delivered from the main body on the core body 4. An extrusion device 14A having a pushing head (not shown) is provided. In order to uniformly coat the rubber material 5a on the core body 4 using such an extrusion device 14A, a take-off device installed on the downstream side of the extrusion device 14A in order to keep the coating operation speed of the rubber material 5a constant. Using a take-up device 16 having a mechanism and a tension-applying device 17 having a brake mechanism installed on the upstream side of the extrusion device 14A in order to apply a constant tension to the canvas 2 corresponding to the speed of the take-up device 16. To do.

On the downstream side of the take-up device 16, the surface of the rubber material 5a coated on the core body 4 is protected, or the adhesive force between the rubber material 5a and the core body 4 is increased and the handrail for the passenger conveyor is provided. A coating device 18 for taping with a plastic tape is provided in order to prevent the shape change of item 1. Further, a winding device 15 for winding the formed passenger conveyor handrail 1 is provided at the most downstream part of the passenger conveyor handrail manufacturing line 10. The winding device 15 temporarily winds up the passenger conveyor handrail 1 coated with the unvulcanized rubber material 5a, and appropriately winds the rubber material 5a by a heating device. When,
A winding machine 1 for rotating the winding drum 15A in a fixed direction.
5B and.

An apparatus for manufacturing a passenger conveyor handrail using the passenger conveyor handrail manufacturing line 10 configured as described above will be described. The canvas 2 is separated from the drive mechanism of the belt 28 provided in the accumulator device 23,
It is pulled at a constant line speed by a drive mechanism (not shown) provided in the production line 10.

When sending such a canvas 2 to the canvas forming section 13, a plurality of canvas pads 2 provided in the canvas supply section 12 are provided.
The upper part of the upper rollers 24A, 24B, 24C and the lower parts of the lower rollers 24D, 24E of the accumulator device 23 provided in the canvas supply part 12 in a state of being able to supply the canvas 2 wound around 1 to the canvas forming part 13. Wrap around alternately. The positions of the lower rollers 24D and 24E at this time are set to a predetermined lowermost part of the fixed base plate 26.

In this state, the driving mechanism provided in the manufacturing line 10 pulls the canvas 2 out of the delivery section of the accumulator device 23 and delivers the canvas 2 to the canvas forming section 13 while at the same time providing a drive motor and the like. The lower pulley 25J attached to the supporting member 27'J is rotated in a fixed direction. At this time, the rotation speed of the belt 28 and the line speed of the canvas 2 are set to be the same, and the lower pulley 25E, the pulley 25G axially attached to the moving base plate 30 and the lower pulley 25D, the pulley 25F axially attached to the moving base plate 29.
Is maintained at a predetermined bottom position.

When all of the canvas 2 wound around the canvas pad 21 is delivered, the supply of the canvas 2 from the canvas pad 21 is stopped. However, the lower pulley 25E, the pulley 25G pivotally attached to the moving base plate 30, and the lower pulley 25D and the pulley 25F pivotally attached to the moving base plate 29 are freely moved up and down, so that the lower roller 24D is sent along with the sending of the canvas 2. 24E can be sequentially raised from a predetermined lowermost position to a predetermined uppermost position. As a result, even when the supply of the canvas 2 from the canvas pad 21 is stopped, the canvas 2 is moved by the upward movement of the lower rollers 24D and 24E.
Will continue to be supplied.

During this period, the empty canvas pad 21 is replaced with a fully-wound canvas pad 21, and the canvas 2 on the upper roller 24A side and the canvas 2 of the fully-wound canvas pad 21 are overlapped and sewn with a sewing machine. Without stopping line 10
The canvas 2 is constantly supplied while maintaining a constant tension. Immediately after replacing the canvas pad 21, the lower roller 24D,
Since 24E has risen to the predetermined uppermost position, the rotation speed of the belt 28 is driven to be slightly higher than the line speed of the manufacturing line 10, and the lower rollers 24E and 24D are sequentially moved to the predetermined lowermost position. Lower it. Belt 2 after descending
The rotation speed of 8 and the line speed of the canvas 2 are set to be the same so that the canvas 2 is stably supplied.

The tension member 3 is supplied from the tension member supply unit 11 to the canvas forming unit 13 at the same supply speed as the canvas 2. In this way canvas pad 2
At the time of exchanging No. 1, the canvas 2 and the tension member 3 are sent to the canvas forming unit 13 in a state where the supply of the canvas 2 is continued, and here the hot air of 30 to 40 ° C. is blown by the forming roll and the cross section is heated. The core body 4 which is a laminated body is formed by being deformed into a substantially C shape. The core body 4 is delivered to the extruding device 14A by the take-up device 16 and the winder 13B while the tension is applied by the tension applying device 17, and the rubber material 5a is coated on the surface of the core body 4 by the extruding device 14A. Let Then, the core body 4 coated with the rubber material 5 a, that is, the passenger conveyor handrail 1 is wound up on the winding drum 15 A of the winding device 15.

In this embodiment, three rollers 24 are provided above the fixed base plate 26 and two rollers 24 are provided below the fixed base plate 26, and the canvas 2 is supplied to the canvas forming section 13. However, as shown in FIG. 4, the number of rollers 24 may be increased according to the length of the canvas 2 to be wound.

[0027]

According to the apparatus for manufacturing a handrail for a passenger conveyor of the present invention, the belt-shaped canvas which is continuously supplied from the canvas supply section is wound around the upper roller group which rotates integrally with the upper pulley group, and the upper roller group is rotated. Supplied from the cloth supply unit by being wound around a lower roller group that rotates integrally with a second lower pulley group that is located between the groups and moves up and down according to the supply state of the canvas supplied from the cloth supply unit. Even when the canvas is stopped, the lower roller group moves up and down according to the supply state of the canvas supplied from the canvas supply unit, so that the canvas pad can be replaced without stopping the production line. This makes it possible to manufacture a handrail for a passenger conveyor with high yield.

[Brief description of drawings]

FIG. 1 is an explanatory view of a manufacturing line for a passenger conveyor handrail.

FIG. 2 is an embodiment of an apparatus for manufacturing a handrail for a passenger conveyor according to the present invention, (a) is a side view of an accumulator device using the same embodiment, and (b) is a front view of (a). FIG. 3C is a layout view of the rollers, and FIG. 6C is a layout view of the pulleys as viewed from the front of FIG.

FIG. 3 is a cross-sectional view of a passenger conveyor handrail.

FIG. 4 is another embodiment of the manufacturing apparatus for a handrail for a passenger conveyor according to the present invention.

FIG. 5 is a perspective view of a supply unit using a conventional manufacturing apparatus for a passenger conveyor handrail.

[Explanation of symbols]

23 ... Accumulator device 24 ... Roller 24A, 24B, 24C ... Upper roller (upper roller group) 24D, 24E ... Lower roller (lower roller group) 25 ... Pulley 25A, 25B, 25C ... Upper pulley (upper pulley group) 25D, 25E , 25F, 25G ... Lower pulley (second lower pulley group) 25H, 25I, 25J ... Lower pulley (first lower pulley group) 26 ... Fixed base plate 27A, 27B, 27C, 27H, 27I ... Support member 27'J ... Supporting member (with drive motor) 28 ... Belt 29, 30 ... Moving base plate

Front page continuation (72) Inventor Hiromi Takeda 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki-shi, Kanagawa Within Showa Electric Wire & Cable Co., Ltd. (72) Masanori Yoshida 2-1-1 Oda, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 Showa Electric Cable Co., Ltd.

Claims (1)

[Claims] 1. A manufacturing apparatus for manufacturing a handrail for a passenger conveyor by continuously supplying a belt-shaped canvas from a canvas supply section to a canvas forming section, wherein an upper pulley group and the upper pulley which are interlocked with the canvas supply section by belt drive. A first lower pulley group corresponding to the group, a second lower pulley group that is vertically movable between the upper pulley groups, an upper roller group that integrally rotates with the upper pulley group, and the second lower pulley A lower roller group that rotates integrally with the group, and a belt that is alternately wound around the upper pulley group, the first lower pulley group, and the second lower pulley group, for a passenger conveyor Handrail manufacturing equipment.