JP3411373B2 - Width alignment device for belt-shaped members - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for supplying a belt-like member such as a tread, which is a tire constituent material, to a forming drum with its widthwise position accurately adjusted. The present invention relates to a width direction alignment device for a band-shaped member. 2. Description of the Related Art When a belt-like member such as a tread is supplied to a molded door ram, if its width direction position is not accurately adjusted,
The left-right symmetry of the molded tire is impaired. Therefore, as described in Japanese Patent Application Laid-Open No. 3-272834, a tilting means having a tilting axis and capable of tilting upward, the belt-like member capable of supporting the belt-like member movably along a horizontal direction, and the tilting means. There is a band-shaped member width direction aligning device provided with a band-shaped member supporting means attached to the belt and guide means provided so that the distance to the tilt axis can be adjusted while being held parallel to the tilt axis. [0004] In this device for positioning the band-shaped member in the width direction,
After adjusting the guide means to an appropriate distance in accordance with the width dimension of the band-shaped member, the band-shaped member is loaded on the band-shaped member supporting means in a horizontal state, and the tilting means is tilted to raise the band-shaped member supporting means upward. If the belt-shaped member supporting means is returned to a horizontal position after the tilting, the width direction of the belt-shaped member can be aligned. Further, after the tilting means is tilted to tilt the band-shaped member supporting means downward, and then the band-shaped member supporting means is returned to a horizontal position, the band-shaped member is carried in the widthwise position of the band-shaped member supporting means. Can be moved to the set position. However, in such an apparatus for aligning the width of the belt-like member in the width direction, the belt-like member support means is tilted downward and the belt-like member support means is moved to a set position for loading the belt-like member. A space for tilting is required below the means, which increases the size of the device,
Operation is wasteful and productivity is not good. Furthermore, because of the automatic fall, there is a possibility that the position of the belt-shaped member supporting means may vary.In order to improve this, the weight of the belt-shaped member supporting means is increased, the resistance at the time of conveying the belt-shaped member is increased, and the quality of the finished tire is reduced. descend. SUMMARY OF THE INVENTION In view of the above facts, the present invention can accurately position the belt-like member supporting means, can reduce the size of the apparatus, improve the productivity, and improve the quality of the product. It is an object of the present invention to obtain an apparatus for aligning a band-shaped member in the width direction. According to the present invention, there is provided a belt-shaped member for supplying the band-shaped member to the forming drum by aligning the center of the band-shaped member in the width direction with the center of the band-shaped member in the width direction. A tilting means having a tilting axis, the tilting means being capable of tilting upward with the tilting axis as a supporting axis; and a tilting direction of the tilting means capable of supporting the band-shaped member movably along a horizontal direction. A belt-like member supporting means movably attached to, a guide means capable of abutting on a side of the belt-like member on the belt-like member supporting means and a distance between the side of the belt-like member and being adjustable, Returning means for returning the belt-shaped member supporting means moved in the inclined direction to a predetermined position. According to the apparatus for positioning a belt-shaped member in the width direction according to the present invention,
The belt-like member supporting means is leveled, the belt-like member is carried on the belt-like member supporting means, and the tilting means is tilted upward. As a result, the belt-like member on the belt-like member supporting means moves downward together with the belt-like member supporting means, and the side of the belt-like member comes into contact with the guide means. The position of the guide member is adjusted in advance so that the center of the band-shaped member is the center in the width direction of the forming drum, and the band-shaped member is centered with respect to the forming drum. Next, the tilting means is tilted downward so as to be in a horizontal state, and the return means moves the belt-like member support means to a set position for carrying in the belt-like member to prepare for the next carry-in of the belt-like member. Therefore, when the belt-like member supporting means is moved to the set position for loading the belt-like member, there is no need to tilt the belt-like member supporting means downward, so that a space for tilting below the belt-like member supporting means is required. The size of the apparatus can be reduced, and the operation can be performed without waste and productivity can be improved. Further, since the belt-like member supporting means is forcibly returned to the set position for loading the belt-like member by the return means, there is no possibility that the position of the belt-like member supporting means varies, thereby making it possible to reduce the weight of the belt-like member supporting means. Therefore, the resistance at the time of transporting the belt-shaped member is reduced, and the quality of the completed tire can be improved. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus for aligning a belt-shaped member in the width direction according to the present invention will be described with reference to FIGS. As shown in FIG. 2, a pair of bearings 14 are mounted on the upper surface near both ends of the base portion 12 of the band-shaped member width direction aligning device 10. Frame 18 is pivotally attached via a tilt shaft 20 so as to be tiltable. A tilt arm 22 is integrally fitted to a front end (right side in FIG. 2) of the tilt shaft 20.
An end of a piston rod 26 fitted to the tilt cylinder 24 so as to be extendable and contractible is rotatably pivotally attached to a tip of the tilt arm 22. When the piston rod 26 is shortened, as shown by a solid line in FIG. 4, the tilting arm 22 is held substantially horizontally, and as shown by an imaginary line in FIG. When the is extended, the tilting arm 22 tilts upward. As shown in FIG. 3, the frame 1 of the tilting means 16 is provided.
8, the support shaft 32 of the belt-like member support means 30 is provided at predetermined intervals along the longitudinal direction (the left-right direction in FIG. 3).
A hollow roller 34 of the belt-shaped member supporting means 30 is attached to these support shafts 32. As shown in FIG. 5, the hollow roller 34 is made of aluminum, and its surface is matted (short-processed) to prevent the belt-shaped member from sticking. Further, ball bearings 36 are fitted to both ends of the inner peripheral surface. Ball bearing 36
A slide bush 38 is fitted on the inner peripheral surface of the support shaft 32, and the slide bush 38 is slidably fitted on the support shaft 32. A stopper 40 is provided at the tip of the support shaft 32,
The hollow roller 34 can rotate around the support shaft 32 and can slide along the axis of the support shaft 32. As shown in FIG. 2, a spline process is applied to the third support shaft 32 from the far end (left side in FIG. 2) of the frame 18, and a sprocket 42 is integrally fitted to the support shaft 32. Have been. A sprocket 48 is integrally fitted to a rotating shaft at an output end of an attenuator 46 connected to a rotating shaft of the driving motor 44, and an endless belt 50 is bridged between the two sprockets 42 and 48, and the driving motor 44 is started. Then, the drive roller 52 is decelerated, and can rotate in a state of being slidable in the axial direction. As shown in FIG. 3, the frame 1 of the tilting means 16
8, a pair of adjustment shafts 62 of the guide means 60 are pivotally supported movably in the axial direction without rotating, in a direction parallel to the support shaft 32, and are coaxial with the frame 18. A pulley 64 is attached rotatably without moving in the axial direction, and a male thread portion of the adjustment shaft 62 is screwed to the pulley 64. An adjusting motor 66 is mounted on the frame 18 at the center of the two adjusting shafts 62, and a driving pulley 70 is mounted on an output shaft of an attenuator 68 connected to a rotating shaft of the adjusting motor 66.
Are fitted coaxially. An endless belt 72 is bridged between the pulley 64 and the driving pulley 70, and when the adjustment motor 66 rotates in the normal or reverse direction, the adjustment shaft 62 moves back and forth. As shown in FIG. 4, a support plate 74 extending along the longitudinal direction of the frame 18 is integrally attached to the tip of the adjustment shaft 62. The support plate 74 is provided in parallel with the adjustment shaft 62. , A plurality of guide rollers 76 arranged at predetermined intervals along the longitudinal direction of the frame 18. These guide rollers 76 can come into contact with the side surface 78B of the belt-shaped member 78 placed on the hollow roller 34. As shown in FIG. 1, the frame 18 is provided with an air cylinder 82 of the return means 81 in parallel with the support shaft 32. The piston rod 84 of the air cylinder 82
A pusher plate 86 is integrally mounted on the end of the roller, and the pusher plate 86 moves integrally with the rod 84 and can press the side surface 34A of the hollow roller 34. As shown in FIG. 3, the back side of the frame 18 (FIG. 3)
A roller conveyor 80 is disposed at the left) end. Next, the operation of the present embodiment will be described. In the width direction alignment device 10 for the band-shaped member of the present embodiment, the width direction center line 78A of the band-shaped member 78 such as a tread positioned on the guide roller 76 by appropriately operating the adjustment motor 66 is moved to a not-shown forming drum. The position of the guide roller 76 is adjusted to a position that matches the center line X. Next, as shown by a solid line in FIG. 4, the belt-shaped member 78 is loaded onto the hollow roller 34, and then, as shown by an imaginary line in FIG. As shown in FIG. 6, the hollow roller 34 is rotated until the side surface 78B of the band-shaped member 78 on the hollow roller 34 contacts the guide roller 76 of the guide means 60, as shown in FIG.
Slides toward the frame 18 along the support shaft 32. In this way, the belt-like members 78 are aligned along the guide rollers 76, the inclination of the belt-like members 78 with respect to the forming drum center line is corrected, and the belt-like members 7
8, the center line 78A in the width direction coincides. Next, when the piston rod 26 is shortened and the support shaft 32 is tilted downward, as shown in FIG. 7, the widthwise center line 78A of the band-shaped member 78 is aligned with the center line X of the forming drum.
Are matched, the hollow roller 34 becomes substantially horizontal. After such adjustment is made, the upper and lower surfaces of the band-shaped member 78 are pressed by a pressing roller and a driving roller (not shown), and then the band-shaped member 78 is moved to the roller conveyor 80.
The belt-shaped member 78 is moved in the direction of the arrow Y in FIG. 3 by the roller conveyor 80, and supplied to a forming drum (not shown) with its center in the width direction accurately adjusted. When the supply of the band-shaped member 78 to the forming drum is completed, as shown in FIG. 8, the piston rod 84 of the air cylinder 82 is extended, and the pusher plate 86 presses the side surface 34A of the hollow roller 34. As a result, the hollow roller 34 slides along the support shaft 32 in the direction of arrow K in FIG. This is the set position (the position in FIG. 8) where the belt-shaped member on the distal end side is carried in. Thereafter, as shown in FIG. 9, the rod 84 of the air cylinder 82 is shortened, and the pusher plate 86
It returns to the position on the frame 18 side (the position in FIG. 9), and waits for the next belt-like member to be carried in on the hollow roller 34. As described above, in this embodiment, it is not necessary to tilt the belt-like member support means downward when the belt-like member support means is moved to the set position for loading the belt-like member as in the prior art. A space for tilting is not required below the support means, so that the apparatus can be miniaturized, and operation is not wasted and productivity is improved. Furthermore, since the hollow roller 34 is forcibly returned to the set position where the belt-shaped member 78 is carried in by the return means 81, there is no possibility that the position of the hollow roller 34 varies, thereby making the hollow roller 34 lighter. . Therefore, the resistance at the time of transporting the belt-shaped member is reduced, and the quality of the completed tire can be improved. In this embodiment, the inclination and the width of the belt 78 are adjusted by gravity and inclination without exerting an excessive force or frictional force. The product quality can be maintained at a high level without being damaged. In the above, the present invention has been described in detail with reference to specific embodiments. However, the present invention is not limited to such embodiments, and various other embodiments are within the scope of the present invention. It is clear to a person skilled in the art that is possible.
For example, in the present embodiment, the hollow roller 22 is fitted to the support shaft 21 so as to be slidable in the axial direction. As described above, since the belt-like member supply device of the present invention has the above-described structure, the positioning of the belt-like member support means can be performed accurately, the apparatus can be reduced in size, the productivity can be improved, and the product quality can be improved. It has an excellent effect that it can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a main part of a width direction alignment device for a band-shaped member according to an embodiment of the present invention. FIG. 2 is a side view showing an apparatus for aligning a belt-shaped member in a width direction according to an embodiment of the present invention. FIG. 3 is a plan view showing an apparatus for aligning a belt-shaped member in the width direction according to an embodiment of the present invention. FIG. 4 is a front view showing an apparatus for aligning a belt-shaped member in a width direction according to an embodiment of the present invention. FIG. 5 is a cross-sectional view showing a main part of a hollow roller of the apparatus for aligning a belt-shaped member in the width direction according to an embodiment of the present invention. FIG. 6 is an explanatory view of the operation of the apparatus for aligning the band-shaped member in the width direction according to one embodiment of the present invention. FIG. 7 is an explanatory view of the operation of the apparatus for positioning the band-shaped member in the width direction according to one embodiment of the present invention. FIG. 8 is an explanatory view of the operation of the device for aligning the width of the belt-shaped member in the embodiment of the present invention. FIG. 9 is a diagram illustrating the operation of the apparatus for aligning the band-shaped member in the width direction according to one embodiment of the present invention. [Description of Reference Numerals] 10 Width-direction alignment device 16 for belt-shaped member 16 Tilt means 30 Band-shaped member support means 32 Support shaft 34 Hollow roller 60 Guide means 76 Guide roller 81 Return means 86 Pusher plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B29D 30/00-30/72 B65H 23/032-23/035

Claims (1)

(1) A band-width member alignment apparatus for supplying the band-shaped member to the forming drum by aligning the center of the band-shaped member in the width direction with the center of the band-shaped member in the width direction. A tilting means having a tilting axis, the tilting means being capable of tilting upward with the tilting axis as a support axis, and being capable of movably supporting the band-shaped member in a horizontal direction and being moved by the tilting means in the tilting direction of the tilting means. A belt-like member supporting means mounted so as to be capable of being mounted; a guide means provided to be able to abut on a side of the belt-like member on the belt-like member supporting means and to be adjustable in distance from the side of the belt-like member; Returning means for returning the belt-shaped member supporting means moved in the direction to a predetermined position.