JPS61143143A - Laminating device for beltlike rubbery material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION f This invention relates to a bonding device for bonding two or more strips of rubber-like material while shifting them from each other.

In general, tires have an inner liner, carcass ply,
Band-shaped rubber-like materials such as belts are successively pasted onto a rotating molding drum and molded. Here, taking a carcass as an example, if the carcass is made up of two pieces, first the forming drum is rotated once to paste the first and second pieces together, and then the overlapping parts are pasted. After turning the forming drum half a turn to prevent
I'm trying to rotate it and paste the second braai.

Therefore, if the carcass consists of two braais, the forming drum must make two and a half revolutions,
In addition, if it is made up of three pieces of braai, it must be rotated by 3 and 2/3 turns, and as a result, there is a problem in that the work cycle time for pasting becomes longer and the work efficiency is lowered. There is. In order to solve this problem, it is conceivable to bond a plurality of plies together in advance with a predetermined phase shift, and to supply the bonded plies to a forming drum. In this way, if the carcass consists of two plies, the forming drum completes the pasting in one and a half revolutions, and if the carcass consists of three plies, the pasting is completed in one and a half rotations. Pasting is completed by rotation and 2/3 rotation. However, when pasting multiple plies together in this way, it is important that the plies are centered with high precision, that is, the centers of the plies in the width direction match each other, regardless of vibrations during transportation. It is required that this bonding be performed automatically using simple equipment.

However, this invention satisfies the requirement of automatically bonding rubber band materials together with high centering accuracy using simple equipment.

This requirement requires a first conveyor that intermittently conveys the first rubber band material, a downstream end of which is located directly above the first conveyor, and a second conveyor that conveys the second rubber band material. When a second conveyor intermittently conveys toward the first conveyor and a second rubber band material is supplied onto the first rubber band material and overlapped, the first and second rubber material bands are connected to each other. and a bonding means for bonding the first and second rubber-like materials to each other, the first and second conveyors restraining the first and second rubber-like materials to control their relative positions. This problem can be solved by having first and second holding means for holding constant.

New Year's Day First, a first belt-shaped rubber material and a second belt-shaped rubber material that are centered with high accuracy are carried into a first conveyor and a second conveyor, respectively. Next, the first and second belt-like rubber materials travel on the first and second conveyors, but at this time, the first and second rubber bands are restrained by the first and second holding means, respectively, and their relative positions are kept constant. Since the first and second belt-like rubber materials are held, their positions in the width direction do not change even when the first and second conveyors vibrate, and are conveyed downstream. This causes the leading end of the first rubber-like material to move away from the downstream end of the first conveyor and into the second belt on the second conveyor.
A strip of rubbery material is reached. At this time, the tip of the first rubber band material and the tip of the second rubber band material are shifted by a predetermined phase, and the first rubber material band and the second rubber material band are different from each other at the time of delivery. Since the centering accuracy is maintained, the centering accuracy between the two is high. Next, when the first and second conveyors run, the overlapping first and second belt-like rubber materials are automatically pasted one after another with high centering accuracy by the pasting means. The first and second rubber bands bonded together in this manner are then sent to, for example, a forming drum, where they are automatically bonded with high efficiency.

Support 11 Hereinafter, a first embodiment of the present invention will be described based on the drawings.

In Fig. 1.2, 1 is a main frame, and shafts 2 and 3 are rotatably supported on this main frame 1. A plurality of sprockets 4.5 are attached to each shaft 2.3, and these sprockets 4, 5
Multiple chains 6 are passed between them. Reference numeral 7 denotes a pulse motor that drives and rotates the shaft 3, and the operation of this pulse motor 7 causes the chain 6 to travel intermittently. The aforementioned shaft 2.3, sprocket 4.5, and chain 6 collectively constitute a first conveyor 8, and this first conveyor 8 intermittently conveys the first ply P1 as a first band-like rubber material in the direction of the arrow. Transport to. Note that 8 is a supply conveyor connected to the first conveyor 8, and this supply conveyor 8 supplies the bonded plies, which will be described later, to a forming drum (not shown). Reference numeral 11 denotes an inclined frame whose lower end is fixed to the main frame 1. At the lower end of this inclined frame 11 is a shaft 12 located directly above the center of the first conveyor 8, and at its upper end is a rotating shaft 13. Possibly supported. A plurality (six) sprockets 14,15 are attached to these shafts 12,13, respectively, and a chain 16 is passed between each of these sprockets 14,15. The shaft 13 is driven and rotated by a pulse motor 17, thereby causing the chain 16 to run intermittently. The aforementioned shaft 12.13, sprocket 14.15, and chain 16 collectively constitute a second conveyor 18 whose downstream end is located directly above the center of the first conveyor 8, and this second conveyor 18 has a second rubber band. The second ply P2 as a shaped material is transferred to the first conveyor 8.
Transported intermittently toward As shown in FIG. 3, a plurality of sponge rollers 18 are attached to the shaft 12, and these sponge rollers 18 are attached to the sprocket 1.
The outer diameter of the sprocket 14 is larger than the outer diameter of the sprocket 14. As a result, when the second ply P2 reaches the downstream end of the second conveyor 18,
It rides on the sponge roller 19'' and is pulled away from the chain 16. Again, in FIG. 1.2, 21 is a stay that holds the inclined frame 11 parallel by having both ends fixed to the inclined frame 11.
1 has a shaft 22 rotatably supported. This shaft 22
A pair of side plates 23 bent in the shape of a
The base end portions of the side plates 23 are swingably supported, and the bent portions of these side plates 23 are connected by a stay 24 parallel to the stay 21 . The aforementioned side plate 23 and stay 24 constitute a swing frame 25 as a whole. The stay 21
The head sides of a pair of cylinders 26 are connected via a bracket 27, and the tips of the piston rods 29 of these cylinders 26 are connected to the stay 24 via a metal fitting 30. Reference numeral 31 denotes a stroke adjustment spacer interposed between the piston rod 29 and the metal fitting 30, and by adjusting the thickness of these spacers 31, the swinging range of the swinging frame 25 can be adjusted. . The swing frame 25 is moved around the shaft 22 by the operation of the cylinder 26.
It oscillates around , oscillates to the lowering limit, and then stops at stopper 2.
8, its tip becomes parallel to the first conveyor 8, and its base end becomes parallel to the second conveyor 18. Shafts 32 and 33 are rotatably supported at the tip and base ends of the swing frame 25, respectively, and a plurality (six) of sprockets 34, 35 are attached to each of these shafts 32, 33. . The sprocket 3
Chains 36 are passed between the 4.35 and 35, respectively. A plurality of sprockets 39 and 40 are attached to the shaft 37 rotatably supported by the stay 24 and the shaft 38 rotatably supported by the bent portion of the swing frame 25, respectively.
When the chain 3G is engaged with the chain 3G, the chain 36 is bent along the side plate 23. Since the shaft 32 is inserted into a long hole 45 formed at the tip of the swing frame 25, the shaft 32 can be moved along the long hole 45 by adjusting the screwing amount of the pole 4B. This allows the tension of the chain 36 to be adjusted.

Further, a plurality of sponge rollers 47 are fixed to the shaft 32, and these sponge rollers 47 are arranged between the sprockets 34, respectively. The outer diameter of these sponge rollers 47 is larger than the outer diameter of the sprocket 34, and as a result, these sponge rollers 47 separate the second ply P2 from the chain 36 and also separate the second ply P2 from the chain 36.
It has the function of pressing and pasting onto ply PI. A timing pulley 4 is provided on the shaft 22 and the shaft 33, respectively.
8 and 49 are fixed, and these timing pulleys 4
A timing belt 50 is installed between the 8.48 and 48. A timing pulley 56 is fixed to a shaft 55 rotatably supported on the inclined frame 11 directly above the shaft 13, and a timing belt 56 is connected between the timing pulley 56 and a timing pulley 57 fixed to the shaft 22. The stake has been passed. Further, a reversing gear 58 is fixed to the shaft 55, and this reversing gear 58 and a reversing gear 60 fixed to the shaft 13 mesh with each other, whereby the chain 3
6 is driven and runs in the opposite direction to the chain 16.

The aforementioned sprockets 34, 35, 38, 40 and the chain 36 as a whole constitute a third conveyor 81 bent in a U-shape. Further, the third conveyor 61, the sponge roller 47, the swing frame 25, and the cylinder 2B constitute a bonding means B2 as a whole, and the bonding means 62 has a second ply P2 supplied onto the first ply P1. When superimposed, these first brushes P1. The second ply P2 is pressed against the first conveyor 8 and bonded together continuously with high precision. As shown in FIG. A large number of L-shaped supports 63 are fixed, and a first
Ply P1. A needle 64 that pierces the second ply P2 is fixed. Then, the first conveyor 8, the second conveyor +8. The needles 64 of the third conveyor 61 and the supply conveyor 8 restrain these first and second plies P1 and P2, and connect these first and second plies P1 and P2 to the first conveyor 8 and the second conveyor 18. The third conveyor 61 constitutes first, second, and third supply holding means that maintain constant relative positions with the supply conveyor 9, respectively. Again, in Figure 1.2,
65 is a guide plate arranged between the downstream end of the second conveyor 18 and the center of the first conveyor 8, and this guide plate 65 is located on the extension line of the conveyance side of the second conveyor 1. There is. The second guide plate 65
A plurality of grooves parallel to the chain 16 are formed on the upper surface that contacts the ply P2, and these grooves guide the second
The ply P2 is sent to the first conveyor 8 while its displacement in the width direction is restricted. Further, 86 is the second conveyor 1
This is a slide plate that supports the conveyance side of 8 from below. 67 is a photoelectronic switch installed directly above the supply conveyor 8, and this photoelectronic switch 67 is connected to the first ply P1.
Detects the tip of the pulse motor 7 and controls the operation of the pulse motor 7. Further, 88 is a photoelectronic switch installed directly above the guide plate 85, and this photoelectronic switch 6
8 detects the tip of the second ply P2 and controls the operation of the pulse motor 17.

Next, the operation of the first embodiment of the present invention will be explained.

First, in the first step, as shown in FIG.
Conveyor 8, guide play [5, separated from second conveyor 18. Next, the centered first ply P1 and second ply P2 are carried into the upstream ends of the first conveyor 8 and the second conveyor 18, respectively. At this time, the needles 64 of the first conveyor 8 and the needles 64 of the second conveyor 18 pierce the first ply P1 and the second ply P2, respectively, and the first ply PI and the second ply P2 are transferred to the first conveyor 8 and the second conveyor 18. 18 respectively.

Next, in the second stage, as shown in FIG. 5(b),
Pulse motor 7. 17 is operated respectively and the first and second
Run conveyor 8.18. As a result, the first and second plies P1 and P2 are conveyed downstream of the first and second conveyors 8.18, respectively.

During this conveyance, the first and second plies P1 and P2 are
Since the needles 64 of the second conveyor 8.18 are stuck into each of the needles 64, the needles 64 of the second conveyor 8.
There is no possibility that the plies P1 and P2 are displaced in the width direction and the centering accuracy is deteriorated. Here, the second ply P2
When the tip of the second ply P2 is conveyed to just above the sponge roller 19, the second ply P2 is lifted by the sponge roller 18 and separated from the chain 16.
The needles 64 of the conveyor 8 are removed from the second ply P2.

Next, when the tips of the first and second plies P1 and P2 reach directly below the optoelectronic switch 67.6, the optoelectronic switch 87.68 sends a signal to the pulse motor 7.17, respectively. 17, that is, the first and second conveyors 8.18 are stopped.

Next, in the third stage, as shown in Figure 5 (C),
The piston rod 29 of the cylinder 2B is made to protrude and the swing frame 25 is caused to swing downward until it comes into contact with the stopper 28. As a result, the tip of the third conveyor 81 is
It is parallel to the conveyor 8, and on the other hand, its base end is parallel to the second conveyor 18 and the guide plate 65. At this time, the second ply P2 is held between the second conveyor 18, the guide plate 65, and the third conveyor 61, and is pierced from above by the needles 64 of the third conveyor 61.

Next, in the fourth step, as shown in FIG. 5(d),
The pulse motor 7.17 is operated to run the first, second conveyor 8.18 and third conveyor 61. As a result, the second ply P2 between the second conveyor 18 and the third conveyor 61 is
While being restrained from both sides by the first needle 64, the third needle
The second ply P2 between the conveyor 61 and the guide plate 65 is guided by the groove of the guide plate 65, and the third ply P2 is
It is conveyed while being restrained by the needles 64 of the conveyor 61. As a result, the second ply P2 will not be strangely deformed or the centering accuracy will not deteriorate while moving from the second conveyor 1 to the first conveyor 8. Next, the second ply P2
The tip of the ply comes into contact with the first ply P1, but at this time, the tip of the second ply
The tip of the ply P2 is shifted from the tip of the first bly PI by half the length of the first ply P1, in other words, the phase is delayed by 180 degrees on the forming drum. and,
When the first and second plies P1 and P2 are further conveyed, these first and second plies PI and P2 overlap on the first conveyor 8. At this time, as described above, the first and second plies P1 and P2 overlap while maintaining high centering accuracy, so the centering accuracy between them is high. Next, these overlapping first and second plies P1. When P2 reaches directly below the sponge roller 47 of the third conveyor 61, these first and second plies P1 and P2 are pulled away from the chain 36, the needles 64 of the third conveyor 61 are pulled out, and the first ply P1 and P2 are removed from the first conveyor 61. 8
are pressed together and pasted together. The first plies Pi and P2 bonded together in this manner are sent to a forming drum by a supply conveyor 9. Next, the operation of the pulse motor 7.17 is stopped and the process returns to the first stage.

The above is one cycle of the operation of the first embodiment of the present invention, and this cycle is repeated thereafter.

FIG. 6 is a diagram showing a second embodiment of the invention. In this embodiment, as the bonding means, a bonding roller 70 is used, which is installed in front of the guide plate 65 and has a large number of needles 71 fixed to its outer periphery. This bonding roller 70 is rotatably and movably supported by the support frame 72 by inserting its shaft 74 into a long hole 73 of a support frame 72 attached to the main frame 1.

When such a laminating roller 70 is used,
The second ply P2 is transferred from the second conveyor 18 to the first conveyor 8.
The width direction regulation while moving to the needle 6 of the second conveyor 18
4 into most of it, and the guide plate 6
5, and the bonding of the first and second plies P1 and P2 is performed by the weight of the bonding roller 70. This embodiment has a simpler structure than the first embodiment and can be manufactured at low cost.

FIG. 7 is a diagram showing a part of a third embodiment of the present invention. In this embodiment, the second and third conveyors 18.8
In place of the sponge roller 19.47 of 1, a peeling plate 78 is installed at the downstream ends of these second and third conveyors 18.61. A plurality of grooves 77 are formed in this peeling plate 76 on an extension line of the chains 1B, 36, and a part of the sprocket 14.34 of the second and third conveyors 18.61 is inserted into each groove 77. and,
Second and third conveyors! The needle 64 of 8.61 is removed from the second ply P2 as the second ply P2 is separated from the chain 18.38 by the peeling plate 76.

FIG. 8 is a diagram showing a part of a fourth embodiment of the present invention. This embodiment uses magnets 81 installed in the first and second conveyors 8.18 instead of the needles 64 as the first and second holding means. Magnet 8 like this
1 is effective when the first and second plies P1 and P2 are plies reinforced by steel cords, and when the magnet 81 attracts the steel cords, the first plies P1 and P2 are reinforced by steel cords.
The second plies P1, P2 are restrained to the first and second conveyors 8.18, respectively. In addition, a vacuum box is installed at the position of this magnet 81 as the first and second holding means, and the first
, the second plies P1 and P2 may be restrained by suction.

As explained above, according to the present invention, belt-shaped rubber-like materials can be automatically bonded together with high centering accuracy using simple equipment.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing a first embodiment of the present invention, and FIG.
The figure is a perspective view of the main part, Figure 3 is a view taken along the line I-I in Figure 1,
Fig. 4 is a front view of the vicinity of the holding means (needle), Fig. 5(a) -
(d) is an explanatory view explaining the operation of the first embodiment, FIG. 6 is a schematic side view showing the second embodiment of the present invention, and FIG. 7 is a perspective view of essential parts showing the third embodiment of the present invention. , and FIG. 8 are side views of main parts showing a fourth embodiment of the present invention. 8...First conveyor 18...Second conveyor 62
... Bonding means 64 ... First and second holding means (needle) Pl ... First band-shaped rubber-like material (first ply) P2 ...
・Second band-shaped rubber-like material (Second Bly) Patent applicant Brideston Co., Ltd. Agent Patent attorney Ta 1) Toshio "5" W (a) - Figure 5 (b) Figure 5 (C) 5. , figure (d)

Claims (1)

[Claims] a first conveyor that intermittently conveys a first belt-shaped rubber-like material; and a second conveyor, the downstream end of which is located directly above the first conveyor, that intermittently conveys a second belt-shaped rubber-like material toward the first conveyor. a conveyor, and when a second band-like rubber-like material is fed and superimposed on the first band-like rubber-like material, the first,
A bonding device for bonding second band-shaped rubber-like materials to each other, wherein the first and second conveyors are configured to bond the first and second band-shaped rubber-like materials to each other. A bonding device for band-shaped rubber-like materials, characterized in that the device has first and second holding means for restraining and holding the relative positions thereof constant.