JP4316934B2 - Tire cording device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tire cord for affixing a tire cord mainly constituting a carcass ply or the like to a support surface for affixing a cord made of a molding drum or a rubber sheet on an outer peripheral surface thereof in the manufacture of a pneumatic tire. The present invention relates to a sticking device.
[0002]
[Prior art and problems to be solved by the invention]
In recent years, in the manufacture of pneumatic tires, for example, as a means for forming a carcass layer, a carcass ply obtained by calendering a long original fabric such as a weave weave and cutting it at a predetermined width dimension and angle is used. Instead of the conventional method of winding and laminating on a molding drum, a single tire cord such as nylon or polyester treated with an adhesive or rubberized is placed on a core having a shape approximating the shape of the inner peripheral surface of the product tire or It has been practiced that the position is sequentially shifted on the molding drum, arranged in a zigzag shape and attached and wound (for example, Patent Documents 1 to 3 below). In this case, there is an advantage that the code angle can be freely set and the code angle can be changed at a necessary portion, and the use thereof is increasing.
[0003]
Affixing the cord for supporting the cord on the molding drum to the support surface (usually made of a rubber sheet for an inner liner wound around the outer peripheral surface of the drum) has a function of feeding and sticking a long cord. While the cord application head held is reciprocated in the axial direction (device width direction) of the molding drum, it is fed to the support surface made of the rubber sheet for the inner liner on the outer peripheral surface of the drum by the rotation of the molding drum. A long tire cord fed from the pasting head is pasted on the support surface in an arbitrary pasting pattern, thereby achieving a high-speed and automatic single cord pasting operation. .
[0004]
At this time, for both end portions (ear portions), the pasted cords are manufactured in a continuous state or are attached in a sheet shape as a whole, and then the both end portions are adjusted to the width dimension according to the tire. The part was cut and trimmed.
[0005]
However, when the cords are made continuous, there are problems that the folded portions of the cords are bulky, it is difficult to balance the tires, and the amount of cords used increases. In addition, in the method of trimming both end portions, a trimming step is separately required for molding, and end scraps are generated by trimming. This will hinder labor saving and efficiency.
[0006]
Therefore, at the same time as the application of the tire cord, the end portion of the trim is eliminated by cutting the cord at the folded portion, thereby saving labor and speeding up the attaching operation. The present invention intends to provide a tire cord sticking device capable of accurately and automatically performing a cord cut at a folded portion.
[0007]
[Patent Document 1]
JP-A-6-155628
[0008]
[Patent Document 2]
JP-A-11-28907
[0009]
[Patent Document 3]
Japanese Patent Application Laid-Open No. 11-198247
[0010]
[Means for Solving the Problems]
The tire cord applicator of the present invention that solves the above problems has a cord adhering head in the device width direction perpendicular to the feed direction of the support surface with respect to the cord adhering support surface made of a rubber sheet or the like on a molding drum. An apparatus for reciprocating and sticking a long tire cord in a predetermined pasting pattern, comprising cutting means for cutting the cord at the positions of the folded portions on both sides together with the cord pasting head, The sticking head is provided with a sticking roller that can approach and separate from the support surface and presses and attaches the cord against the support surface by an approaching action. The sticking roller is temporarily separated from the support surface at the folded portions on both sides. And the cutting means enters between the application roller and the support surface when the application roller is separated from the support surface in the folded portion. And characterized in that it comprises a cutting member for cutting the cord Te.
[0011]
According to the cord applicator for tires, the cord adhering head reciprocates in the width direction of the device in response to the feeding of the cord adhering support surface made of a rubber sheet or the like on the molding drum. The tire cord can be reliably affixed to the support surface while being pressed by an affixing roller provided in the affixing head.
[0012]
Then, in the folded portions on both sides, the sticking roller is temporarily separated from the support surface to perform the folding operation, and the cutting member of the cutting means is disposed between the sticking roller and the support surface while in the separated state. And the cord is automatically cut at the folded portion. After the cord cut, the sticking roller that has performed the folding operation such as direction change again touches the support surface, thereby pressing the tip end of the cut cord against the support surface, in the opposite direction to the above. paste. In this way, the cords attached at the folded portions on both sides can be continuously attached with good balance while being cut.
In the tire cord sticking device, a circumferential guide groove for guiding the cord is formed on an outer periphery of the sticking roller, and a suction hole that communicates with the inside of the roller at every circumferential interval of the guide groove. The tip of the cut cord can be sucked and held in the guide groove by suction from the inside of the roller by a suction means as appropriate.
[0013]
As a result, the cord attached to the support surface on the molding drum or the like is held in the guide groove on the outer periphery of the application roller and can be accurately applied to a predetermined position, and cut at the folded portion as described above. When this is done, the tip of the cut cord can be sucked from the suction hole in the guide groove and securely held in the guide groove, and after the folding operation, the application roller is pressed against the support surface, The tip of the cord can be automatically attached to the support surface, and the cord can be attached continuously as it is.
[0014]
In addition, it is preferable that a partition member for always applying a suction force only to a certain angle range is arranged inside the roller of the sticking roller, and thereby the leading end portion of the cut cord is attached to the sticking roller. It can be reliably held within a part of the effective suction range, and there is no fear of being excessively wound around the application roller, so that the code can be applied smoothly after being folded back.
[0015]
In the case where the cord supply path is provided with pulling back means for retracting the leading end portion of the cord after being cut to the effective suction range of the sticking roller, between the sticking roller and a supporting surface on the molding drum or the like. By pulling back the front end portion of the cut cord to the effective suction range of the sticking roller, the front end portion can be held in the guide groove without being left over, and can be reliably attached from the front end portion.
In addition, when a guide member is provided in the vicinity of the outer periphery of the sticking roller to prevent the cord fitted in the guide groove from coming off, the cord slipping during the pasting by the traveling movement of the cord sticking head is prevented. It is possible to prevent, and also to prevent the tip end of the cord that has become a free end after the cord cut at the folded portion, the cord pasting by the reciprocating motion of the cord pasting head is performed continuously while cutting the cord at the folded portion. be able to.
[0016]
In addition to the above, the pasting roller in the cord pasting head includes two pasting rollers for forward movement and backward movement, and the pasting roller for forward movement and the pasting roller for backward movement correspond to reciprocating travel at the folded portions on both sides. The one of the forward and backward sticking rollers can be switched so as to be positioned at the sticking position on the side opposite to the cord sticking support surface.
[0017]
Further, in the tire cord sticking device, as the cutting means, the cutting member is supported so as to be swingable with the axial center position of the sticking roller at the time of separation or a position away from it as a fulcrum. It is a blade, and can be provided so as to pass between the sticking roller and the cord on the support surface and cut the cord by a swing operation of the cutter blade.
[0018]
Further, the cutting means is a cutter blade supported so that the cutting member can travel in the apparatus width direction between the sticking roller and the cord on the support surface when separated from the support surface, The cutter blade may be provided so as to pass between the sticking roller and the cord on the support surface to cut the cord. In this case, the distance between the sticking roller and the support surface at the time of the separation can be set small, the free end of the cut sticking cord is small, and the cord is hardly peeled off.
[0019]
What comprises the roller which presses the edge part of the code | cord cut by running following the cutter blade and following the cutter blade is preferred. In this case, the end of the cut and affixed cord is also affixed to the support surface, and can be affixed neatly and peeled off from the end of the cord, so that the affixed state is stabilized.
[0020]
The cutting member is provided with a flange member that enters between the sticking roller and the cord on the support surface and cuts the cord when the sticking roller is separated from the support surface. You can also.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described based on examples shown in the drawings.
[0022]
FIG. 1 is a perspective view showing an outline of a main part of one embodiment of a tire cord sticking device of the present invention, FIG. 2 is an enlarged perspective view of a part of a sticking roller, FIG. 3 is a sectional view of the sticking roller, and FIG. FIG. 5 is a cross-sectional view of the cord application state by the application roller, FIG. 5 is a cross-sectional view of the application roller at the folding portion separated from the support surface on the forming drum, and FIG. 6 is a cross-sectional view of the cord cut state after the folding operation. is there.
[0023]
In FIG. 1, reference numeral 1 denotes a cylindrical green case or a molding drum for molding a tire for manufacturing a tire, which basically has the same configuration as a conventional molding drum, and includes a driving means such as a servo motor ( (Not shown) so as to be driven to rotate. 2 is a rubber sheet for an inner liner wound around the outer peripheral surface of the molding drum 1, and the surface thereof serves as a support surface 3 for applying a cord for attaching a tire cord C to be applied. Reference numeral 10 denotes a code sticking head, and 30 denotes a cutting means for the code C.
[0024]
The tire cord C to be affixed is a single cord such as nylon or polyester mainly treated with an adhesive or rubberized. In addition, a thin tape-like cord obtained by rubberizing several cords (for example, two or three cords) in parallel may be attached.
[0025]
The cord pasting head 10 is arranged above the molding drum 1 through a linear guide means (not shown) arranged in the apparatus width direction, in the apparatus width direction (left-right direction in FIG. 4) which is the axial direction of the drum. It is provided so as to be reciprocated within a predetermined range on the molding drum 1 by appropriate drive means (not shown) such as a servo motor. Reference numeral 14 denotes a supporting base member for the traveling movement.
[0026]
The cord sticking head 10 includes a sticking roller 11 at the lower end thereof. The sticking roller 11 is rotatably attached to a support member 13 connected to an advancing / retracting means 12 such as a cylinder, and a cord sticking support made of a rubber sheet 2 on the molding drum 1 by the operation of the advancing / retreating means 12. In the illustrated example, the cord C is supported so as to be able to approach and separate from the surface 3 so as to be movable up and down, and the cord C supplied from above through the inner hole of the base member 14 and the advancing and retracting means 12 by the approaching action. It is provided so as to be pressed against and attached to the support surface 3.
[0027]
In addition, the application roller 11 is once separated (raised) from the support surface 3 at the folded portions at both ends in the apparatus width direction by controlling the operation of the advancing / retreating means 12, and an angle corresponding to the code application pattern. It is set to return to the approach (down) state to the support surface 3 after performing a predetermined folding operation such as a direction change to the direction and a cord cutting operation. In the cutting means 30 described later, when the sticking roller 11 is separated from the support surface 3 (when lifted), the cutting member 31 enters between the sticking roller 11 and the support surface 3 to support the support surface 3. It is provided so as to cut the folded portion of the code C affixed to. Therefore, the separation dimension H of the sticking roller 11 from the support surface 3 is set according to the form of the cutting means 30.
[0028]
As shown in FIG. 2 and FIG. 3 and the like, the sticking roll 11 has a circumferential guide groove 15 for guiding the cord C supplied from above at a substantially center in the width direction on the outer periphery. Is provided. The guide groove 15 is shallower than the diameter of the cord C, and a part of the cord C is fitted into the guide groove 15 so that the deviation or detachment of the cord C in the roller width direction can be regulated. Yes.
[0029]
For each required interval in the circumferential direction of the guide groove 15, a suction hole 16 communicating with the roller interior 17 is provided. The roller interior 17 is connected to suction means (not shown) such as a vacuum pump through an inner hole portion 18a of a hollow shaft member 18, for example, and is cut at the folded portion by suction from the roller interior 17 by the suction means. The leading end c1 of the supplied cord C is provided so as to be sucked and held in the guide groove 15.
[0030]
A pair of partition members 19 are provided in the roller interior 17 of the sticking roller 11 so as to always apply a suction force only to a certain angular range. For example, on the outer peripheral surface of the sticking roller 11, in order to smoothly start the sticking of the cord C after the folding from the front end portion c <b> 1, it is 30 ° to 90 ° in the region on the front side in the cord sticking direction after the folding. The angle range is set to be the suction effective range α. Reference numeral 18b denotes a communication hole between the roller interior 17 and the inner hole portion 18a of the shaft member 18, and is provided at the position of the effective suction range α.
[0031]
As described above, when the effective suction range α is set in the guide groove 15 of the sticking roller 11, as shown in FIG. 7, the cut end C <b> 1 of the cord C is cut while the cord C is being supplied. It is preferable to provide pull-back means 20 for retracting the sticking roller 11 to the effective suction range α. As the pull-back means 20, for example, a guide roller 21 that detours the code C is disposed in the middle of the path of the code C, and the detour amount of the guide roller 21 is changed by the forward and backward movement of the cylinder 22. After the cord C is cut, the detour amount of the cord C is increased and the tip end portion c1 is pulled back. Of course, a cord pull-back means using another mechanism can be used.
[0032]
Further, as shown by a chain line in FIG. 6, the cord C fitted in the guide groove 14 is placed near the outer periphery of the sticking roller 11, particularly the outer peripheral surface on the front side in the cord sticking direction. A guide member 23 such as an auxiliary roller for holding the cord C against the guide groove 14 can be provided to prevent the cord C from coming off the guide groove 14. In this case, the suction holding function by the suction hole 16 of the guide groove 15 is not necessarily required, but it is more desirable to provide both.
[0033]
In addition, since the above-mentioned sticking roller 11 sticks to the support surface 3 while feeding the cord C supplied from above while turning the front side in the sticking direction, It is necessary to convert the positional relationship between the cord C contacting the outer peripheral surface of the sticking roller 11 and the sticking roller. Further, when changing the cord application direction, it is necessary to adjust the application roller 11 so that the axis of the application roller 11 faces in a direction perpendicular to the code application direction.
[0034]
Therefore, the code sticking head 10 is provided so that the support part of the sticking roller 11 or the whole sticking head can turn. In the case of the illustrated embodiment, the cord application head 10 is supported by the base member 14 so as to be capable of turning via a turning drive means 25 such as a rotary cylinder. The cord cutting by the cutting means 30 at the turn-back portion is preferably performed after the direction changing operation by the turning.
[0035]
The cutting means 30 enters between the affixing roller 11 and the support surface 3 in a state where the affixing roller 11 is isolated from the support surface 3 such as on the molding drum 1 to which the code C is affixed. A cutting member 31 capable of entering between the roller 11 and the cord C stuck on the support surface 3 and cutting the cord C is provided.
[0036]
In the case of the embodiment shown in FIG. 8 and FIG. 9 as the cutting member 31, the vertical distance from the support surface 3 is the axis of the sticking roller 11 at the time of the separation at the positions of the folded portions on both sides. A thin blade-like cutter blade 33 which is attached to a rotatable support member 32 having an axis G at a position or a position away from the position, and is provided so as to be able to swing around the axis G by the rotation of the support member 32. Consists of. The cutter blade 33 is fixed and supported by an L-shaped attachment member 34 connected to the support member 32, and when the sticking roller 11 is separated from the support surface 3, the axis G is As shown in FIG. 6, the cord C passing between the sticking roller 11 and the cord on the support surface 3 and extending downward around the sticking roller 11 by the swing operation centered on the folded portion It is provided so that it can be cut. In the case of the figure, the cutter blade 33 is bent in an arc shape having a swing radius.
[0037]
The cutting means 30 provided with the cutter blade 33 is disposed at the position of the folding portion on both sides in the apparatus width direction by retracting from the running position of the sticking roller, and the sticking roller 11 is at the position of the folding portion. When the cutter blade 22 moves away from the support surface 3 and swings by moving to the traveling position, the cutter blade 22 is provided so as to pass between the application roller 11 and the support surface 3. The code sticking head 10 includes a moving means (not shown) in the apparatus width direction that follows the travel of the head 10, and the sticking roller 11 is separated from the support surface 3 at the folded portion. When the axis G of the support member 32 moves to a position aligned in the direction perpendicular to the roller axis and the support surface 3, the swing operation may be performed. . Further, the cutter blade 33 may be provided in the cord applying head 10 so as to perform the swing operation corresponding to the separation action of the attaching roller 11 as described above at the positions of the folded portions on both sides. . In any case, it is desirable to provide a cut operation by performing a swing operation from the inside in the apparatus width direction to the outside after the folding operation by the direction change of the sticking roller 11.
[0038]
In addition, the said cutter blade 33 consists of what has a blade part in the front end side of the swing direction (rotation direction) at the time of a cutting action. The cutter blade 33 shown in FIG. 8 and FIG. 9 shows one cutter blade of the cutting means 30 provided separately at the positions of the folded portions on both the left and right sides, and on the tip side in one swing direction (rotation direction). Only the blade is provided. In addition, when one cutting means 30 is used for the cutting action at the folded portions on both the left and right sides, blade portions can be provided at both ends in the forward and reverse rotational directions as necessary.
[0039]
In any case, a V-shaped blade portion 33a is provided in a part of the blade portion, a corresponding portion of the attachment member 34 is notched, and the cord C is held by the V-shaped blade portion 33a. It is desirable from the viewpoint of the certainty of the cutting action that it is formed so that it can be cut reliably. Reference numeral 34a denotes a notch.
[0040]
As the cutting member 31, as shown in FIGS. 10 and 11, in the folded portion on both sides in the apparatus width direction, the sticking roller 11 and the support surface in the state where the sticking roller 11 is separated from the support surface 3. 3, in particular, a thin cutter blade 35 provided so as to be able to travel in the apparatus width direction between the cord C attached to the support surface 3. The cutter blade 35 is attached via an L-shaped attachment member 37 to a support plate 36 that can travel in the apparatus width direction by a travel means (not shown) as appropriate (FIG. 10), and travels with the support plate 36. By moving, it is provided so as to pass between the sticking roller 11 and the cord C on the support surface 3 to cut the cord C (FIG. 11).
[0041]
The cutter blade 35 can also be provided so as to travel along with the cord applying head 10. In addition, a V-shaped blade portion 35a is provided in a part of the blade portion of the cutter blade 35, and a corresponding portion of the attachment member 37 is notched, so that the cord C is reliably cut by the blade portion 35a. It is good to be able to do it.
[0042]
As described above, when the thin blade-like cutter blade 35 is run in parallel to the support surface in the apparatus width direction, the interval between the sticking roller 11 spaced from the support surface 3 and the support surface 3 is It can be set small enough to allow the cutter blade 35 to pass through.
[0043]
Further, as shown in FIG. 12, by following the cutter blade 35 and following the cutter blade 35 in the running direction, the cut end c2 of the cord C on the pasting side is formed on the molding drum 1 and the like. An auxiliary roller 38 that presses against the support surface 3 may be provided on the support plate 36. In this case, the sticking roller 11 is spaced apart from the support surface 3 so that the roller 38 can pass therethrough. In the case of this embodiment, the cut cord end c2 is pressed by the roller 38 (FIG. 13), so that the end c2 can be securely attached to the support surface 3, and the end c2 No peeling or the like occurs and the end processing of the cut cord C becomes easy.
[0044]
Further, as the cutting member 31, as shown in FIG. 14, at the positions of the folded portions on both sides, the cord on the application roller 11 and the support surface 3 when the application roller 11 is separated from the support surface 3. It is also possible to provide a flange member 39 that enters between C and cuts the cord C. In this case, the means for entering between the affixing roller 11 and the support surface 3 can use the same mechanism as that of the cutter blade 35 described above, and can be obtained by opening and closing the pair of blade members 39a and 39b. The cutting action of the member 39 can be implemented by providing at least one of the double-edged members 39a and 39b so as to be openable and closable with respect to the other.
[0045]
In the above-described embodiment, as the folding operation of the pasting row 11 at the folding portions on both sides, the supporting portion of the pasting roller 11 or the contact portion of the pasting roller 11 so that the contact side of the cord C in the pasting roller 11 faces forward in the pasting direction. Although it has been described that the entire cord application head 10 is rotated by approximately 180 °, in addition to this, as shown in FIGS. 15 and 16, two application rollers 11a and 11b for forward movement and backward movement are arranged close to each other. In addition, the two rollers can be configured to be alternately switched at the folded portions on both sides so as to correspond to the forward movement and the backward movement.
[0046]
As a means for this, a circular switching support body 27 that is rotatable around an axis d orthogonal to the pivot axis is provided at the lower part of the cord application head 10 and a support means (such as a cylinder) that can advance and retreat. (Not shown in the figure) so that it can move up and down, and on the front surface of the switching support 27, there are two forward and backward movements having respective axes on a circle centered on the axis d (on the same circle). Two sticking rollers 11a and 11b are arranged close to each other. By rotating the support 27 for switching in the forward and reverse directions by a driving means (not shown) such as a servo motor, one of the pasting rollers 11a and 11b is alternately brought into contact with the support surface 3 on the molding drum 1. It is provided so as to be switchable so that it can be positioned at the lowermost sticking action position protruding downward from the support 27 on the opposite side.
[0047]
In response to the reciprocating travel of the cord applying head 10, it is supplied from above between the application rollers 11 a and 11 b by switching control by the driving means in a state of being separated from the support surface 3 at the folded portions on both sides. The tire cord C comes into contact with the front side of the forward movement sticking roller 11a or the backward movement sticking roller 11b corresponding to the reciprocating travel, so that either the forward movement or the backward movement is performed. Also in this case, it can be applied while pressing against the support surface 3 on the molding drum 1 below (FIG. 15). Further, as shown in FIG. 16, when separating from the support surface 3 for the folding operation, the cutting means 30 similar to the above embodiment is used to cut the cord C at the folding portion. Can be implemented.
[0048]
The distance between the two affixing rollers 11a and 11b for the forward movement and the backward movement can be arbitrarily set. However, in practice, it always comes into contact with the cord C supplied between the affixing rollers 11a and 11b from above. In addition, it is preferable to set them so that they can be sandwiched between the two rollers so as to prevent the cord from being disconnected, including when switching between the two affixing rollers 11a and 11b.
[0049]
Even in such a structure, the application rollers 11a and 11b on both sides are formed with circumferential guide grooves on the outer peripheral surface thereof, and suction holes are formed in the grooves, as in the above-described embodiment. It is desirable that the cut end portion c1 of the cord C is provided so as to be sucked and held, and a pull-back means for retracting the cut cord end portion to a predetermined position is provided in the middle of the cord supply. Good.
[0050]
In addition, when using these two sticking rollers, in order to adjust the angle of the rollers in accordance with the sticking direction, they are provided so as to be able to be swiveled by means such as a rotary cylinder.
[0051]
【The invention's effect】
As described above, according to the tire cord sticking device of the present invention, the cord sticking head is reciprocated on the cord sticking support surface such as a rubber sheet on the molding drum so that the cord is stuck in order. In the folding portion, the folding operation is performed by separating from the support surface of the sticking roller, and at the time of the separation, the cutting member of the cutting means enters between the sticking roller and the support surface to cut the cord folding portion. By doing so, the cords can be pasted with the folded portions on both sides cut.
[0052]
In particular, when a guide groove is provided on the outer periphery of the sticking roller so as to hold the tip of the cut cord on the sticking start side, the tip can be automatically stuck at a predetermined position. Can be pasted efficiently and quickly.
[0053]
Therefore, the cord processing of the side end portion of the molded green case or the green tire is facilitated, and the carcass ply in a state where the cord side end portion is cut can be easily configured to facilitate the implementation thereof.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a tire cord applicator according to the present invention.
FIG. 2 is an enlarged perspective view of the sticking roller portion of the above.
FIG. 3 is an enlarged cross-sectional view of a portion of the sticking roller of the same.
FIG. 4 is a cross-sectional view showing a state where a cord is applied by the application roller.
FIG. 5 is a cross-sectional view before a cord cut in a state in which a sticking roller is separated from a support surface on a molding drum in a folded portion.
FIG. 6 is a cross-sectional view showing a cord cut state after the above folding operation.
FIG. 7 is a schematic explanatory diagram illustrating pullback means in the middle of code supply.
FIG. 8 is a perspective view showing one embodiment of a cutting means.
FIG. 9 is a front view of the same cutting means.
FIG. 10 is a partial perspective view showing another embodiment of the cutting means.
FIG. 11 is a partial cross-sectional view showing a cord cut state by the same cutting means.
FIG. 12 is a partial front view showing still another embodiment of the cutting means.
FIG. 13 is a cross-sectional view of a cord cut state by the same cutting means.
FIG. 14 is a cross-sectional view of a cord cutting state of still another embodiment of the cutting means.
FIG. 15 is a front view of a part of a cord application state showing an embodiment of an application head including two application rollers for forward movement and backward movement.
FIG. 16 is a partial front view showing a switching operation state and a cord cut state of the two pasting rollers.
[Explanation of symbols]
1 Molding drum
2 Rubber sheet for inner liner
3 Support surface
10 Cord application head
11 Sticking roller
11a, 11b Pasting roller for forward movement and backward movement
12 Advancement and retreat means
13 Support member
14 Base member
15 Guide groove
16 Suction hole
17 Inside the roller
18 Shaft member
18a Inner hole
18b communication hole
19 Partition member
20 Pull-back means
21 Guide roller
22 cylinders
23 Guide member
25 Turning drive means
27 Support for switching
30 Cutting means
31 Cutting member
32 Support member
33 Cutter blade
33a V-shaped blade
35 Cutter blade
35a V-shaped blade
36 Support plate
38 Auxiliary rollers
39 Hook
C Tire cord
c1 Cut cord tip
c2 End of pasted side cord that has been cut
d axis
H Separation dimension
α Suction effective range

Claims (10)

The cord application head is reciprocated in the device width direction perpendicular to the feed direction of the support surface with respect to the code application support surface of the rubber sheet or the like on the molding drum, so that the long tire cord has a predetermined application pattern. A device for pasting,
A cutting means for cutting the cord at the position of the folded portion on both sides together with the cord application head,
The cord sticking head is provided with a sticking roller that can be moved toward and away from the support surface and presses and sticks the cord against the support surface by an approaching action, and the sticking roller is separated from the support surface at folded portions on both sides. Provided to be separated once,
The cutting means includes a cutting member that enters between the application roller and the support surface and cuts the cord when the application roller is separated from the support surface at the folded portion. A tire cord attaching device. A circumferential guide groove for guiding the cord is formed on the outer periphery of the sticking roller, and a suction hole that communicates with the inside of the roller is provided at each circumferential interval of the guide groove. The tire cord sticking device according to claim 1, wherein a tip portion of the cut cord is provided in the guide groove so as to be sucked and held by suction from the inside. The tire cord sticking device according to claim 2, wherein a partition member for causing a suction force to be always applied only within a certain angular range is disposed inside the sticking roller. 4. The tire cord sticking device according to claim 3, further comprising a pulling back means for retracting the leading end portion of the cut cord to the effective suction range of the sticking roller during feeding of the cord. The tire cord sticking device according to any one of claims 2 to 4, wherein a guide member is provided in the vicinity of the outer periphery of the sticking roller to prevent the cord fitted into the guide groove from coming off. The sticking roller includes two sticking rollers for forward movement and backward movement, and the sticking roller for forward movement and the sticking roller for backward movement have the forward or backward movement corresponding to the reciprocating travel at the folded portions on both sides. The tire cord sticking according to any one of claims 1 to 4, wherein one of the moving sticking rollers is provided so as to be switchable so as to be positioned at a sticking action position opposite to the cord sticking support surface. apparatus. The cutting member is a cutter blade supported so as to be capable of swinging with the axial center position of the sticking roller at the time of the separation or a position away from the axis as a fulcrum. The tire cord attaching device according to any one of claims 1 to 6, wherein the tire cord attaching device is provided so as to pass between the cords on a surface and cut the cord. The cutting member is a cutter blade supported so as to be able to travel in the apparatus width direction between the sticking roller and the cord on the support surface when separated from the support surface, and the cutter blade is the sticking roller The tire cord attaching device according to any one of claims 1 to 6, wherein the tire cord attaching device is provided so as to cut between the cord and the cord on the support surface. The tire cord sticking device according to claim 8, further comprising a roller that presses an end portion of the cord that is cut by running following the cutter blade, following the cutter blade. The cutting member is provided with a flange member that enters between the affixing roller and the cord on the support surface and cuts the cord when separated from the support surface of the affixing roller. The tire cord sticking device according to any one of claims 6 to 6.

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