JP3423089B2 - Supply and sticking method of strip material - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of supplying and attaching a band-shaped material, and more specifically, a band-shaped carcass material, for example, as a tire constituent material, is sequentially formed on a forming drum. When supplying and winding a plurality of layers, the belt-shaped material is unwound from the same raw roll and cut into a fixed length sequentially, and then efficiently wound while adjusting the length of the belt-shaped material when wound on the forming drum. The present invention relates to a method of supplying and attaching a band-shaped material. 2. Description of the Related Art In general, in the case of forming a tire, when a plurality of layers of carcass material are wound or wound around a bead, a failure of the formed tire and a viewpoint of durability may be considered.
Materials having different widths are used so that a step is formed at both ends of each layer. Therefore, when a plurality of carcass materials as tire constituent materials are laminated and pasted on a tire forming drum, individual strok rolls each having a band-shaped material wound up to a predetermined width are supplied to the servicer of the forming machine and unwound. I was using. [0003] Therefore, in the step of cutting the carcass material unwound from the raw roll, it is necessary to separately prepare the material to be sent to the next step. It is necessary to provide a servicer corresponding to each material, it is necessary to increase the equipment cost and the required space, and it takes time and effort to supply and wind the belt-shaped material, and the work efficiency is extremely poor. There was a problem to say. The present invention has been devised in view of such a conventional problem, and it is not necessary to prepare a material in a preceding step even when supplying a belt-shaped material having a different width to a forming drum. It is not necessary to provide a servicer corresponding to the material of the, so equipment costs and required space are reduced,
It is an object of the present invention to provide a method of supplying and attaching a band-shaped material, which can efficiently supply and wind a band-shaped material. [0005] In order to achieve the above object, the present invention provides a system proposed by the present applicant (for example,
Achieved with the width corresponding to the circumference of the tire forming drum in advance by further improving the invention of the applicant of the present application (Japanese Patent Publication No. 2-61384, Patent Registration No. 1,638,162, registration date January 31, 1992). Is done. That is, the belt-like material is unwound from the same material roll on which the belt-like material has been wound, and a plurality of layers of the belt-like material wound around the forming drum are cut into lengths corresponding to the width of the forming drum. When each strip-shaped material cut into a fixed length is supplied to a forming drum by an attaching conveyor, and each strip-shaped material cut into a fixed length is wound around a forming drum,
The gist of the present invention is to control the relative speed between the rotation speed of the forming drum and the feed speed of the application conveyor to control the length of the belt-shaped material while winding the belt-shaped material after the first layer. [0007] Further, when winding each of the strip materials cut to the fixed length, the relative speed between the rotation speed of the forming drum and the feed speed of the laminating conveyor is determined with respect to the first and subsequent layers of the strip material. In addition to the control, the rear end of the band material is gripped by the restraining means and wound while adjusting the length of the band material. The present invention is constructed as described above, and when supplying strip materials having different widths to the forming drum, the strip material is unwound from the same material roll and is fed to the forming drum. Since a plurality of layers of the band-shaped material to be wound are cut into lengths corresponding to the width of the forming drum, and the lengths of the first and subsequent layers of the band-shaped material are sequentially adjusted and controlled when supplied to the forming drum. There is no need to prepare materials, and there is no need to provide servicers for each material, so that equipment costs and required space are reduced, and efficient supply of the band-shaped material and winding work. And the cycle time can be shortened. Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic plan view of a supply device 10 for a belt-shaped material W for carrying out a method of forming a radial tire according to the present invention. FIG. 2 is a view showing a device 1 installed in a direction orthogonal to a laminating conveyor 11 in FIG. FIG. 2 is a schematic front view of a supply and transport device 10A including a set of a take-up conveyor 12, a fixed-size conveyor 13, a cutting device 14, a transfer roll device 15, and the like. In FIG. 1, T indicates a tire forming drum, and a band-shaped material laminate Wx (Wa + Wb + Wc or Wb + W) cut to a fixed length and superposed on the forming drum 1.
c) A laminating conveyor 11 that supplies (for example, a rubber sheet such as a tie rubber and a first-layer carcass material) and a strip-shaped material Wc (a second-layer carcass material) cut to a fixed size, and a laminating conveyor 11a are connected in series. is set up. During the transportation of the laminating conveyor 11,
In the direction orthogonal to the conveying direction of the laminating conveyor 11, each of the sheet-shaped fixed-size strip-shaped materials Wa, W
Supply / conveyance devices 10A, 10B, and 10C for supplying b and Wc onto the laminating conveyor 11 are provided. In this embodiment, three sets of the supply and transfer devices 10A, 10B, and 10C are provided. However, the number of the supply and transfer devices can be increased or decreased according to the number of the band-shaped materials W wound around the forming drum 1. In the following description, the supply and transfer device 10
A, 10B, and 10C are composed of the same components, so that 1
A description will be given of a set of supply / conveyance devices 10A, and the other supply / conveyance devices 10B and 10C will be assigned the same reference numerals and description of the configuration will be omitted. As shown in FIG. 2, the feed conveyor 10 </ b> A has the take-up conveyor 12 and the fixed-size conveyor 13 installed in a direction orthogonal to the conveying direction of the laminating conveyor 11, and the take-up conveyor 12 and the fixed-size conveyor 13. A cutting device 14 is installed at the connection portion with the belt material W that has been unwound from a raw roll 16 that has been wound into a roll, and is supplied onto the fixed-size conveyor 13 via a separate roll 17.
It is to be cut to a fixed size by the cutting device 14. The width of the strip is measured a plurality of times during the measurement of the strip in which a set of photoelectric sensors (not shown) is installed so as to face the width of the fixed-size conveyor 13 and the value is measured. The information is stored in the control device. The take-off conveyor 1
2. On the transfer belt 2, the band-shaped material Wa cut to a fixed size is wound on the take-up conveyor 12, transferred onto the laminating conveyor 11, and overlaid and stacked on the band-shaped material Wb + Wc which has been transported and positioned in advance. A laminating device 15 is provided. The transfer / lamination device 15 is shown in FIGS.
As shown in the drawing, the take-up conveyor 12 and the laminating conveyor 11
A slide member 19 slidable along the slide rail 18 via a moving cylinder 19a is suspended from a slide rail 18 laid above the space between the slide rail 18 and the slide rail. A guide rail 20 is mounted in a direction orthogonal to 18, and a guide member 22 having a concave cross section that is movable via a drive motor (servo motor) 21 is suspended from the guide rail 20. Elevating cylinders 23a and 23b are suspended from opposite positions of the guide member 22, and rods 24a and 24b of the elevating cylinders 23a and 23b are suspended.
Bearing members 28a and 28b for horizontally supporting a rotation support shaft 27 of a transfer roll 26 provided with a plurality of suction and blowing holes 25 on the peripheral surface are attached to the tip of b. The transfer roll 26 is provided with a drive motor (servo motor) 30 for rotationally driving the transfer roll 26 on a bracket 29 provided to protrude from the bearing member 28b. Is connected to suction and compressed air blowing means 33 for blowing suction and compressed air through a plurality of suction and blowing holes 25 of the transfer roll 26 via a pipe 31 and an electromagnetic switching valve 32 and the like. The adhering conveyor 11a is configured to be able to advance and retreat toward the forming drum T via moving means (not shown), and the leading end thereof faces the lower surface of the forming drum T via not-shown elevating means. The adhering conveyor 11a of the adhering conveyor 11a
As shown in FIGS. 5 to 7, a restraining means 34 for gripping the rear end of the conveyed band-like material Wc and adjusting the length when winding the material around the forming drum T is provided at the side terminal. Have been. The restraining means 34 includes a driving pulley 35a which is rotationally driven via a driving motor 35 (servo motor).
Conveyor frames 36a, 36b are installed along the longitudinal direction on both sides of an endless pasting conveyor 11a wound around the driven pulley 35b, and guide rails 37a, 37b are laid on the conveyor frames 36a, 36b. I have. A lower clamp member 39 having flanges 39a at both ends and having a substantially concave cross section is provided on the guide rails 37a and 37b via bearings 38.
The lower clamp member 39 is disposed movably along the reference numerals 7a and 37b. The lower clamp member 39 is disposed at a lower portion on the loading side of the attaching conveyor 11a. On the flange 39a of the lower clamp member 39, a gantry 40 is installed. On both sides of the gantry 40, clamp cylinders 41 constituting a belt clamp mechanism are erected.
The lower clamp member 3 is attached to the tip of the rod 41a.
An upper clamp member 42 for holding the attaching conveyor 11a between the upper clamp member 9 and the upper conveyor 9 is attached. As shown in FIG. 7, a bearing 4 is provided in the upper longitudinal direction of a support member 43 erected on the back of the gantry 40.
A shaft 45 rotatably supported via 4 is attached,
A holding plate 46 having a substantially L-shaped cross section, which is formed of a leaf spring or the like, which presses and fixes the rear end of the band-shaped material Wc conveyed by the attaching conveyor 11a onto the attaching conveyor 11a, is attached to the shaft 45. I have. A shaft 45 to which the holding plate 46 is attached
The base end of the arm 47 is fixedly connected to one end of
The distal end of the arm 47 is connected via a pin 50 to the distal end of a rod 49a of a holding cylinder 49 installed on the support member 43 in parallel with the longitudinal direction of the attaching conveyor 11a. Accordingly, when the rod 49a of the holding cylinder 49 extends, the shaft 45 rotates via the arm 47, and the holding plate 46 pivots from the broken line state to the solid line position in FIG. 6 to attach the rear end of the band-shaped material Wc. When the rod 49a of the holding cylinder 49 is contracted by being pressed onto the conveyor 11a and fixed,
The holding plate 46 pivots from the solid line position to the broken line position to release the rear end of the band-shaped material Wc. An edge sensor 51 such as a photoelectric tube for detecting the rear end of the band-shaped material Wc is provided above the holding plate 46.
0 is supported by a protruding piece 52 attached to a support member 43 erected at the center in the longitudinal direction. The edge sensor 51 stops the adhering conveyor 11a when the rear end of the band-shaped material Wc passes, sends a signal to the holding cylinder 49, and sends the signal to the rod 4 of the holding cylinder 49.
9A is extended, and the rear end of the band-shaped material Wc is pressed by the holding plate 46 onto the attaching conveyor 11a to be fixed to the lower clamp member 39. Next, the supply and affixing method when the first-layer carcass material Wc (strip-shaped material), the rubber sheet Wb (strip-shaped material) and the second-layer carcass material Wc (strip-shaped material) are used will be described. This will be described with reference to FIGS. 8A, 8A to 8E, and 8E. First, a plurality of sheet-like band-shaped materials W formed to have a width corresponding to the peripheral length of the forming drum 1 are respectively unwound from the raw roll 16 and fed to the fixed-size conveyor 13 via the separate rolls 17. The width (length in the circumferential direction of the drum) of W is measured at a plurality of locations, and then supplied onto the take-up conveyor 12, and then cut by the cutting device 14 into a length corresponding to the width of the forming drum 1. The transfer roll 26 of the transfer / lamination device 15 is lowered via the lifting / lowering cylinders 23a and 23b to the belt-like material Wb cut to the fixed length and placed on the take-up conveyor 12. Pressure bonding is performed on the material Wb. From this state, when the suction and compressed air blowing means 33 is operated to suck one end of the strip-shaped material Wb from the suction and blowing holes 25 and bring it into close contact with the transfer roll 26, the transfer roll 26 drives the drive motor 30. Rotating through the servo motor 21
(In the direction of the arrow X in FIG. 1),
The belt-shaped material Wb cut to a fixed length is formed on the outer peripheral surface of the
Wind in the circumferential direction. When the winding of the band-shaped material Wb is completed, the transfer roll 26 rises via the lifting cylinders 23a and 23b, and then the transfer roll 26 moves along the guide rail 18 as indicated by the arrow (Y in FIG. Direction) to the end of the guide rail 18 via the cylinder 19a. At this time, the next fixed-size cutting of the band-shaped material Wb is started on the take-up conveyor 12. On the bonding conveyor 11, as shown in FIGS.
And the positioned belt-like material Wc (first carcass) conveyed from the apparatus is on standby, and the transfer roll 26 around which the belt-like material Wb is wound on one end of the belt-like material Wc operates in the same manner as described above. , So that the terminal portion of the band-shaped material Wc and the terminal portion of the band-shaped material Wb are slightly displaced and pressed together (see FIGS. 8B and 8B). From this state, the drive motor 21 for feeding the transfer roll 26 and the drive motor 30 for rotating the drive are synchronized, and the switching operation is performed by the electromagnetic switching valve 32 to supply compressed air from the suction and blow holes 25. The strip material Wb is peeled from the outer periphery of the transfer roll 26 by ejecting the strip material, and as shown in FIGS. 8C, 8C to 8D, and 8D, the strip material Wb is applied from one end of the strip material Wc. Wb is sequentially superimposed and laminated, and at the time of this operation, air bleeding between the belt-shaped materials (rubber sheet and first-layer carcass material) Wb and Wc is simultaneously performed. After the step of superposing and laminating the band-shaped materials Wb and Wc is completed, the transfer roll 26 is raised to the original position via the lifting cylinders 23a and 23b (FIGS. 8E and 8E). ), And move to the original position on the take-up conveyor 12 via the transfer cylinder 19a to prepare for the next operation. Further, when another band-shaped material Wa (rubber sheet) is to be overlaid thereon, the band-shaped material Wa is laminated by the supply / transport device 10A in the same process as Wb. The band-shaped material laminate Wx thus laminated is transferred from the laminating conveyor 11 to the laminating conveyor 11a.
Supplied above. Next, a step of supplying the band-shaped material laminate Wx to the forming drum 1 from the attaching conveyor 11a;
The steps of supplying and attaching the carcass material Wc of the layer will be described with reference to FIGS. First, as shown in FIG. 9 (a), the rubber sheet Wb supplied from the laminating conveyor 11 and the carcass material Wc of the first layer are provided on the upper end of the laminating conveyor 11a. The band-shaped material laminate Wx is placed, and a second layer of carcass material Wc is supplied to the upper portion on the rear end side of the pasting conveyor 11a, and the rear end side is pressed on the pasting conveyor 11a by the holding plate 46. It is in the attached state. That is, when the second-layer carcass material Wc is supplied and transferred from the laminating conveyor 11 onto the laminating conveyor 11a together with the strip-shaped material laminate Wx, the edge sensor 51 is moved to the second-layer carcass material. When the rear end of the material Wc has passed, a signal is sent to the holding cylinder 49, the rod 49a of the holding cylinder 49 is extended, and the rear end of the second layer of the carcass material Wc is attached by the holding plate 46. It is pressed onto the conveyor 11a and fixed. From this state, as shown in FIG. 9 (b), the tip side of the sticking conveyor 11a is moved forward below the forming drum T, and the tip side of the sticking conveyor 11a is further raised to the lower surface of the forming drum T. Further, the relative speed between the peripheral speed of the forming drum T and the feed speed of the attaching conveyor 11a is controlled in accordance with the length of the band material in the drum circumferential direction measured earlier, so that the band material is formed on the outer peripheral surface of the forming drum T. Laminate Wx
(See FIG. 9C). When the winding of the band material laminate Wx is completed, the tip side of the pasting conveyor 11a is lowered, and the forming drum T is rotated to check the state of the band material Wx wound. Next, when the checking of the attached state of the band-shaped material laminate Wx is completed, the second-layer carcass material Wc is pasted on the band-shaped material laminated body Wx wound around the forming drum T. In this case, the carcass material Wc of the second layer and the carcass material Wc of the first layer are cut in advance in accordance with the same length, that is, the circumferential length of the forming drum T. Band-shaped material laminate Wx on forming drum T
When the second layer of the carcass material Wc is pasted up,
The length is shortened by the thickness of the first layer of carcass material Wc, so that the terminal portion is not connected and is attached in a so-called open state. Therefore, according to the present invention, the second-layer carcass material Wc is adhered while securely pulling the second-layer carcass material Wc in accordance with the value measured earlier, including the reduced length of the second-layer carcass material Wc. In order to perform this, the relative speed between the peripheral speed of the forming drum T and the feed speed of the pasting conveyor 11a is controlled, and the rear end of the second-layer carcass material Wc is pressed by the pressing plate 46 onto the pasting conveyor 11a. Supplied in a fixed state. Specifically, the second-layer carcass material Wc
The feed speed of the adhering conveyor 11a with respect to the peripheral speed of the forming drum T is reduced by the length of
The rear end portion of the carcass material Wc of the layer is a holding plate 46.
And is supplied in a fixed state until immediately before the end of the winding by pressing on the attaching conveyor 11a. As described above, the peripheral speed of the forming drum T and the bonding conveyor 11a
In the state where the relative speed to the feed speed is set, the tip side of the attaching conveyor 11a is raised from the state shown in FIG. 9D to the lower surface of the forming drum T in the same manner as in FIG. A second layer of carcass material W
Winding while adjusting the length of c (see FIG. 9E). When the application of the carcass material Wc of the second layer is completed in this way, as shown in FIG. 9 (f), the tip side of the application conveyor 11a is lowered, and the connection with the application conveyor 11 is further performed. Section to prepare for the next sticking operation. According to the present invention, even when the band-shaped materials Wc having different widths are respectively supplied to the forming drum T as described above, the band-shaped materials Wc are unwound from the same original roll 16 and are wound around the forming drum T. Band material Wc
Is cut to a length corresponding to the width of the forming drum, and the length of the strip-shaped material Wc is sequentially adjusted and controlled when the material is supplied to the forming drum T. Therefore, there is no need to prepare the material in the previous process, and furthermore, It is not necessary to provide a servicer corresponding to the material, and therefore, the equipment cost and the required space can be reduced, and the supply of the band material and the winding operation can be performed efficiently, and the cycle time can be shortened. Can do that. Here, the rubber sheet Wb is the carcass W
It may be supplied individually to the forming drum T without pasting it with c in advance, in which case a pasting conveyor is unnecessary. When the lamination is not performed, the belt-shaped material Wc may be transferred from the take-up conveyor to the bonding conveyor by a conventionally known flat plate transfer device. According to the present invention, since the present invention is constructed as described above, it is not necessary to prepare materials in a preceding step even when supplying a belt-shaped material having a different width to the forming drum. Therefore, it is not necessary to provide a servicer according to the requirements, so that the equipment cost and the required space can be reduced, the supply of the band-shaped material and the winding operation can be performed efficiently, and the effect of shortening the cycle time can be achieved. is there. Further, on a strip material cut in advance to a fixed size,
Since other belt-shaped materials are supplied and overlapped while being pressed by the transfer rolls and laminated, there is little air accumulation between the belt-shaped materials. The stitching work for removing the air can be omitted, and the winding work can be made more efficient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view of a strip-shaped material supply device embodying the present invention. FIG. 2 is a schematic side view of a supply / conveyance device including a set of a take-up conveyor, a fixed-length conveyor, a cutting device, a transfer / lamination device, and the like installed in a direction orthogonal to the lamination conveyor in FIG. FIG. 3 is an enlarged front view of the transfer / lamination device. FIG. 4 is a side view of FIG. 3; FIG. 5 is a plan view of the attaching conveyor. FIG. 6 is a front view of FIG. 5; FIG. 7 is an enlarged sectional view taken along the line AA of FIG. 6; 8 (A), (a) to (E), and (e) are operation explanatory views showing a step of superposing and laminating a belt-shaped material of a transfer roll on another belt-shaped material on a laminating conveyor. , (A) ~
(E) is the front view, (a)-(e) is (A)-
It is a side view corresponding to (E). 9 (a) to 9 (e) show supply and sticking steps of a band-shaped material laminate of a rubber sheet on a conveyor and a first layer of carcass material and a second layer of carcass material on a forming drum. FIG. DESCRIPTION OF SYMBOLS T Forming drum 10 Supply device 10A, 10B, 10C for strip material Supply / conveyance device 11 Laminating conveyor 12 Take-off conveyor 13 Standard-size conveyor 14 Cutting device 15 Transfer laminating device 16 Raw roll 26 Transfer roll 27 rotation support shaft 30 drive motor (servo motor) 31 piping 32 electromagnetic switching valve 33 suction and compressed air blowing means 34 restraining means 35 drive motor (servo motor) 39 lower clamp member 40 frame 41 clamp cylinder 42 upper clamp member 43 support member 45 Shaft 46 Holding plate 47 Arm 49 Holding cylinder 51 Edge sensor Wa, Wb, Wc Belt material (rubber sheet, rubber sheet carcass material)

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Claims (1)

(57) out [Claims 1 or sheet of a bulk roll strip material molded in a substantially corresponding width to the circumferential length of the forming drum RaMaki,
Cutting the strip material into a length corresponding to the width of the forming drum,
After transferring a plurality of strip-shaped materials cut in a fixed size in this way to a sticking conveyor arranged in a direction orthogonal to the unwinding direction, feeding and sticking the strip-shaped materials to be sequentially fed to a forming drum and wound. In the method, the band-shaped material is unwound from the same material roll on which the band-shaped material has been wound, and a plurality of layers of the band-shaped material wound around the forming drum are cut into lengths corresponding to the width of the forming drum. Pastes a strip of strip-shaped material in series behind the conveyor
Rubber laminated on the laminating conveyor
And a first layer of a carcass material.
A band-shaped material composed of a layered body, a band-shaped material of a second layer,
Is transferred onto the pasting conveyor at a predetermined interval, and the first layer of band-shaped material is wound by controlling the relative speed between the rotation speed of the forming drum and the feed speed of the pasting conveyor, and then the second layer is wound. It feeds to the sticking position and controls the relative speed between the rotation speed of the forming drum and the feed speed of the sticking conveyor.
A method of supplying and attaching a band-shaped material to be wound while holding the rear end of the layer-shaped band-shaped material by a restraining means and adjusting the length of the band-shaped material.