JPS62119028A - Bonding device for unvulcanized rubber member - Google Patents

Abstract

PURPOSE:To improve and stabilize quality, stabilize productivity and save energy by a method wherein a material is permitted to be wound around a forming drum, abutted against each other and bonded automatically by a series of automatic control mechanisms. CONSTITUTION:The end of a material M1 is attracted by an attracting device 101 to abut it against the gauge surface 181a of a gauge block 8 to correct the end surface m2 of the material into a straight line and bond it to the predetermined position of a forming drum 1, then, a grasper 9 is moved tangentially and radially along the forming surface of a forming drum 1 and the gauge block 8 is moved radially along the same forming surface to abut the rear end surface M3 of the material M1, which is corrected into the straight line, against the beginning end surface M2 of winding of the material M1, which is corrected into the straight line and bonded to the predetermined position of the forming drum 1. Both end surfaces M2, M3 of the material M1 are abutted against each other and, thereafter, the rear end of winding of the material M1 is bonded to the forming surface 11 of the drum 1.

Description

[Detailed description of the invention] [Industrial application field] Inner light carcass ply on the outer periphery of a forming drum for tires, belts, flat belts, etc.

The present invention relates to an unvulcanized rubber member pasting device for wrapping and molding unvulcanized rubber members such as the like.

[Conventional technology]

The molding drum is rotatably supported and is used for wrapping and forming unvulcanized rubber members (hereinafter referred to as materials) such as inner liners and carcass plies. A material supply mechanism (consisting of a let-off, a conveyor, etc.) for supplying the material to the outer circumferential surface of the drum (or the outer circumferential surface if the material is already wrapped)
In a forming device consisting of a servicer (commonly known as a servicer), once the material has been wrapped around the forming surface of the forming drum almost one turn, the forming drum stops rotating, and the worker uses a hand tool to visually cut the excess material (in advance, the material is cut into one turn). (When using cut material, there is no need to cut it.) Then, the worker grasps the end of the material with his or her fingers (hereinafter referred to as the "rear end") and butts the ends together, cutting as necessary. The wrapping of the material and the forming were completed by performing the drawing and wrapping of the joints, the stitch rolls for forming, etc.

[Problem that the invention seeks to solve]

When a material is cut due to its internal stress, the length generally shrinks, and the amount of shrinkage varies depending on the position in the width direction of the material.The amount of shrinkage also varies depending on the composition and combination of materials, temperature, etc. For materials that cannot be cut into steel cords, such as steel cords, there will be an error in the length of the cut, and even if the cut portion is gripped and cut, the cut line will not be straight due to twisting or bending of the steel cords within the ply.

It is necessary to wrap the appropriate material around the drum molding surface, and attach both ends to the molding surface by a predetermined wrapping distance or butt joint depending on the type of material, and if it is unavoidable, the joining of both ends of the material must be done manually by the worker. Currently, this manual work requires skill, which limits the number of workers who can do it and causes variations in quality and productivity depending on the worker.It is hard work that requires nerves even for two workers. It becomes.

[Means for solving problems]

The present invention has been made in consideration of the above-mentioned problems and has an object of providing an automatic pasting device.

A forming drum having a cylindrical outer circumferential surface for practical use during winding and forming of an unvulcanized rubber member, a drive arm for supporting and rotating the forming drum, and a supply plate for supplying the unvulcanized rubber member to the outer circumferential surface of the forming drum. FM
, a gripper that is movable in the line direction of the outer circumferential surface of the shaped drum and in the radial direction of the forming drum, and a gauge surface that the end face of the unvulcanized rubber member comes into contact with. Mounted outside of the forming drum 1
Provided is an unvulcanized rubber member pasting device having a holder movable in the circumferential surface line direction and in the radial direction of the forming drum.

[For production]

Adsorb the end of the material with a suction device, apply it to the gauge surface of the gauge block, straighten the end surface of the material, and affix it to a predetermined position on the forming drum. The block is moved in the same radial direction, and the rear winding end surface of the material, which has been straightened in the same way, is brought into contact with the winding start end surface of the material which has been straightened into a straight line and pasted at a predetermined position on the forming drum.

For polishing, after bringing both end surfaces of the materials into contact, the rear end of the wound material is attached to the molding surface of the drum.

〔Example〕

In Fig. 1, ■ is a forming drum that has a cylindrical outer circumferential surface for special purposes of forming, and 11 is a forming surface of forming drum L (the outer circumferential surface of forming drum 1 or a surface on which other materials have already been wrapped). 12 is a shaft for supporting and rotating the forming drum 1, which is assembled into a housing with a financial device via a bearing.

2 is a material conveyor. Reference numeral 3 designates a material cutting device, and the material cutting device 3 includes a gripper 31 that grips the cutting rear end portion of the material MI. Knife 33 (Honto knife 7-rotation disc knife and others are adopted depending on the type of material M1),
Knife 33ff-,! The pivoting driving device R329 is composed of a gripper 34 that grips the cutting front end of the next material M, and the like. 4 is a material carrying-in conveyor.

5 is material let-off. Reference numeral 6 denotes a manipulator, which will be described in detail later.
Direction, 5+i, tangent direction of swelling surface 11 is Y direction, molding surface 1
A plurality of gauge blocks 8 and grippers 9 are alternately assembled on a trolley device 7 that runs in the Z direction in the radial direction of the molding drum 1 and at a swing angle e) without a plane including the axis X axis of the forming drum 1. It is something that

Although only one set of each of 2 to 6 is shown in FIG. 1, multiple types of materials are often wound and molded around one molding drum 1.

In such a case, each of these 2 to 6 is equipped with a plurality of sets, and 9, although not shown, a position detector, a royal air control device, an electric manufacturing device, etc. are attached.

In FIGS. 2 and 3, the nine-carriage device 7 is assembled so that it can run in the Y direction while being guided by a rail 61 attached to a manipulator frame 62 fixed to the frame of the conveyor 2. The trolley device 7 includes a guide block 71. which is based on the rail 61. A bogie 722 fixed to the guide block 71.A shaft 73 rotatably incorporated into one end of the bogie 72 via a bearing. A swinging frame 742 to which the lower end of the shaft 73 is fixed slides on a guide surface 72a provided at the other end of the truck 72, and the swinging frame 742
Guide 75 fixed to 4. A swing drive device for the swing frame 74, a guide rod 7 mounted movably in the Z direction via a bearing built into the swing frame 74.
Holter 78 to which the lower end of the 6° guide rod 76 is fixed
, and a fluid pressure cylinder 77 whose body is fixed to a swing frame 74 and whose tip end of a piston rod 77a is fixed to a holder 78 for raising and lowering the holder (moving in the Z direction). In the case of a manipulator for laminated materials, where the winding start end surface M, which is the cut surface end surface of the material M+, and the winding rear end surface, which are the end surfaces of the material M+, are parallel to the X axis, two carts 72 and a swinging frame 7411-j may be integrated.

In Fig. 4, gauge block 8, material M+(7)
A block 81. has a gauge surface 81a for the winding start end surface M, and a gauge surface 81b for the winding trailing end surface 81b of the cut material M. Bearing 78 incorporated in holder 8
A guide rod 82.a is slidably inserted into the block 81, and has one end fixed to the block 81, and the other end fixed to the stopper 83 by a known method such as a screw. A compression spring 85 inserted between the block 81 and the holder 8. It is slidably inserted into a bearing 78b built into the holder '178, and one end is connected to the block 8.
In FIG. 5, the gripper 9 is slidably inserted into a bearing 78C built into the body 91° holder 78, and one end is attached to the body 91. A guide rod 92 is fixed and the other end is fixed with a screw or other known tool such as a screw 93. A rotation stopper pin 94 is slidably inserted into a bearing 78d incorporated in the holder 78 and has one end connected to the body 91, and a compression spring 95 is inserted between the holder 78 and the body 91.
．． A piston 96 having locks 96a each inserted into a pair of holes 91a coaxially provided in the body 91.
．． A guide @97. is slidably inserted in the Y direction into a built-in bearing 91b+ so that the hole 91a and its axis are parallel. Pilot 99a into which piston 96 is inserted and fixed
and a hole 99b into which the guide shaft 97 is inserted. A pin 98 that fixes the guide shaft 97 and the movable piece 99. and a suction device 101.10 fixed to the movable piece 99.
2.103 (Electromagnet type, permanent magnet type.

(vacuum cup type, etc.) and the tip of the block 81 is in a standby state,
2. Material M1 from the suction surface of 103 (lower side in Figure 5)
The dimensions are determined so that it extends approximately 1 inch and 1 inch.

In addition, in the case of 9 examples, the gauge block 8 and the gripper 9
is used for the winding start end surface M3 and the winding rear end surface M of the material M.

The gauge block 8 and gripper 9 may be separated for each purpose, and the structure is such that the gauge block 8 and the gripper 9 slide in the Z direction, and the holder 78 moves in the Y direction as the trolley 72 travels.
A Y-direction swing function may be added to the adsorber 10.
1 and the adsorption device 102, and the adsorption device 102 and the adsorption device 5103
It is also possible to make the suction device 103 movable in the Z direction relative to the movable piece 99. Furthermore, in the case of a material whose cut surface is easily deformed, it is desirable to change the shape of the gauge block 8 and incorporate it into the conveyor 2. In this case, a mechanism is added to temporarily lock the rotating piece 99 so that it does not move after the cut line is corrected. There is a need. A state in which the cutting of the material M is completed at a point slightly shorter than the circumference of the forming surface 11 is shown. First, the conveyor 2 is driven to move the winding start end surface M of the cut material M.
, is moved below the suction device 101, and then the holder 78 is lowered (in the Z direction) to suction and grip the winding start end surface M,'i on the suction device 101, and then the holder 78 is raised and the
Air chamber 107 from the ventilation hole 106 provided in the body 91 of
The compressed air in the air chamber 105 is exhausted through the second ventilation hole 104, and the movable piece 99 is moved toward the forming drum 1 side. Then, the winding start end surface M of the material M1 held by the suction device 101 moves until it touches the gauge surface 81a, and the cutting line is corrected to become a practical straight line, resulting in the state shown in FIG. 6. Next, the cart 72 and the conveyor 2 are run synchronously at a constant speed to align the gauge surface 81a with the material winding start end position 13 of the forming surface 11, and the holder 78 is lowered to lower the material winding start end surface M. , is attached to the winding start position (B) 13 on the molding surface. (Fig. 6 (Company)) If the winding starting end surface M of the material M1 is not parallel to the drum axis (hereinafter referred to as an angle), the forming drum 12 cart 7
2. When the conveyor 2 is simultaneously driven 1 and the winding start end surface M has a total length of 5L:rN and is pasted on the expanded surface 11, the holder 7
8 is raised, and then the cart 72 is moved in the above-mentioned feeding direction, that is, in the direction of the cutter 3.

When the pasting of the winding start end surface M6 is completed, or when the winding of the predetermined length of the material M is completed, the forming drum 1 and the conveyor 2'fr- are stopped and the suction device 102 moves the material M! When the winding rear end surface M of
Lower the holder 78, wrap it around the suction device 102, 103, grip the rear end face M, and then raise the holder 78 to wrap it around the suction device 102, 103.
From the air supply 2 ventilation hole 106 to the air chamber 105, the air chamber 10
The compressed air 7 is switched to exhaust, and the movable piece 99 is moved toward the cutter 3 side. Then, the winding rear end surface M is the gauge surface 8
1b and the cutting line is corrected to become a practical straight line, resulting in the state shown in FIG. 60.

Next, the two carts 72 are moved so that the circumferential length of the forming surface 11 and the length of the material M match, and then the forming drum 1 and the cart 72 are moved.
and the transport conveyor 2 are driven synchronously at a constant speed, or the forming drum 1, the cart 72, and the transport conveyor 2 are driven synchronously at a predetermined speed ratio, so that the unwound portion of the material M1 is turned onto the forming surface. 11
However, the portions suctioned and gripped by the suction devices 102 and 103 are wound away from the molding surface 11, and when the winding starting point 13 of the molding surface 11 rotates exactly one rotation from the start of Todoroki, the molding drum 1 is wrapped. When the gauge surface 81b has slightly passed the winding start point 13, the cart 72 also stops, and then the holder 7
8. The fluid pressure in the lifting cylinder 77 is released, and the holder 78 descends under its own weight, and the tip of the block 81 comes into contact with the winding start end surface M of the already wound material and stops. At this time, due to the action of the compression spring 850, the winding rear end surface M held by the suction device 102 and its vicinity do not reach the molding surface 11.

(Fig. 6 (D)) Next, if the cutting line has an angle, move the swinging frame 74 in the e direction so that the other end joining line opens slightly around the obtuse angle end of the rear end surface M of the first winding. Shake it.

Next, move the cart 72 or the forming drum 1 slightly to reach the winding start end surface 2M! and the rear end surface M, and then (sixth
Figure (g))) The cylinder 77 is activated to lower the holder 78 and wrap the rear end surface M.

is attached to the molding surface, resulting in the state shown in FIG. 6 [F].

Thereafter, the cart 72 is driven synchronously by the forming drum 1 at a rather slow speed, and the unjoined parts are joined, and the rear end of the two wraps is moved to the suction device 102. When the material M1 is peeled off from 103 and all bonding lines have been joined, the holder 78 rises, and the manipulator 6 returns to the waiting position. After the material is formed, the wrapping and forming of the material is completed.

On the other hand, the cutter device 3 performs length-measuring cutting of the material M for the next cycle, but its operation is well known and will not be described here.

〔Effect of the invention〕

According to the pasting device of the present invention, the material can be automatically wrapped around the forming drum and butt-joined, resulting in stable quality improvement and stable productivity.

This results in labor savings.

[Brief explanation of drawings]

FIG. 1 is an overall schematic side view of a tire material pasting device showing an embodiment of the present invention, FIG. 2 is a view taken along arrow A in FIG. 1, FIG. 3 is a view taken along arrow B in FIG. The figure is (1 (N sectional view,
FIG. 5 is a sectional view taken along the line DD in FIG. 2, and FIG. 6 is an explanatory view of the operation of the device shown in FIG. 1... Molding drum, 11... Molding surface. M,, M, ... Tire member 1M2 ... Winding start end surface. M, ---Wrapping rear end surface, 101.102.103
-Adsorber. 9...Gripper, 8...Gauge block, 78...
Holder 74... swinging frame.

Claims (1)

[Claims] A forming drum having a cylindrical outer circumferential surface for practical use during winding and forming of an unvulcanized rubber member, a drive arm for supporting and rotating the forming drum, and a supply for supplying the unvulcanized rubber member to the outer circumferential surface of the forming drum. an unvulcanized rubber member pasting device having a handle, the gripper having a suction device for adsorbing an end portion of the unvulcanized rubber member and movable in the direction of the outer circumferential surface of the forming drum and in the radial direction of the forming drum; , a gauge block movable in the radial direction of the forming drum and having a gauge surface with which the end surface of the unvulcanized rubber member comes into contact; and a gauge block to which at least the gripper is attached, in the direction of the outer peripheral surface of the forming drum and in the radial direction of the forming drum. 1. A pasting device for an unvulcanized rubber member, comprising: a movable holder; and a movable holder.