JP2004001281A - Method and apparatus for winding core body code on die roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for winding a core body code on a die roll capable of easily arranging a core body code between the die rolls. <P>SOLUTION: The core body code 3 is spirally at specific pitches P arranged between die rolls 1, 2 via a guide pulley 11 slidingly moving along one axial direction of the rotatively driven die rolls 1, 2. At the same time, the arranged core body code 3 is guided by guide rollers 101, 102, 103 and 104 which are arranged between the die rolls 1, 2 and have grooves at specific pitches P. By slidingly moving those guide rollers 101, 102, 103 and 104 in the axial direction in synchronism with the guide pulley 11, the core body code 3 guided by those guide rollers 101, 102 103 and 104 are arranged at specific pitches while they are developed from one end side to the other end side of the axial direction of the die rolls 1, 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of manufacturing a power transmission belt, wherein a core cord is spirally wound at a predetermined pitch between a pair of die rolls arranged in parallel at a predetermined interval. The present invention relates to a method and an apparatus for winding a core cord around a mold roll around which the cord is wound.
[0002]
[Prior art]
Conventionally, as a method of manufacturing a power transmission belt, a pair of parallel mold rolls, at least one of which is driven and rotated, is provided so that the distance between the axes can be adjusted, and a core cord and unvulcanized rubber are provided on these pair of mold rolls. A biaxial forming method for winding a sheet to form a transmission belt body is known.
[0003]
In the manufacture of such a power transmission belt, first, it is necessary to spirally wind a core body cord at a predetermined pitch between mold rolls.
[0004]
Japanese Patent Application Laid-Open No. 2001-205714 discloses a method of winding a core cord in such a manner that the core cord is wound spirally at equal intervals between integral mold rolls. Between the rolls, a rotatable guide roller having circumferentially, equally-spaced guide grooves on the outer peripheral surface is provided so that this axis intersects the axis of the mold roll at a predetermined angle, and a core cord is provided. , And wound around a pair of mold rolls while applying predetermined tension to the core cord, and automatically rotate the pair of mold rolls to automatically rotate the entire core cord. There has been proposed one that is wound while being moved in the axial direction between the mold rolls.
[0005]
[Problems to be solved by the invention]
In this winding method of the core cord, since the entire core cord is wound while being moved in the axial direction between the mold rolls, there is a possibility that the alignment of the core cord between the mold rolls may collapse with the movement. is there.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a method and an apparatus for winding a core cord around a mold roll, which can ensure alignment of the core cord between the mold rolls.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a core cord winding method for spirally winding a core cord at a predetermined pitch between a pair of mold rolls arranged in parallel with each other at a predetermined interval,
Simultaneously arranging the core body cords between the mold rolls in a spiral at a predetermined pitch via a guide pulley that slides along one axial direction of the mold roll that is driven to rotate,
The core cords arranged are guided by guide rollers provided with the grooves at the predetermined pitch interval, which are arranged between the mold rolls, and the guide rollers are slid in the axial direction in synchronization with the guide pulleys. By doing so, the core cords guided by the guide rollers are aligned at a predetermined pitch while being developed from one end side to the other end side in the axial direction of the mold roll.
[0008]
According to a second aspect of the present invention, in the first aspect, the groove of the guide roller is a V-groove, and the guide roller is arranged close to a side of a core cord entering the die roll. Is what it is.
[0009]
According to a third aspect of the present invention, a core cord is wound around a mold roll that spirally winds a core cord at a predetermined pitch between a pair of mold rolls arranged in parallel at a predetermined interval. A device,
A guide pulley for arranging the core cords in a spiral at a predetermined pitch between the mold rolls while sliding along one axial direction of the mold roll to be rotationally driven;
A guide roller disposed between the mold rolls and having grooves at the predetermined pitch interval, for guiding the arranged core body cords, and synchronizing the guide rollers with the guide pulleys in the axial direction. A guide roller for aligning at a predetermined pitch while sliding the core cord guided by the guide roller from one axial end to the other axial end of the mold roll. Things.
[0010]
According to a fourth aspect of the present invention, in the third aspect, the groove of the guide roller is a V-shaped groove, and the guide roller is disposed close to the entry side of the core cord into the die roll. Is what it is.
[0011]
According to the configuration of the first and third aspects, the guide roller having the same pitch array groove is arranged so that the alignment of the core rope wound between the mold rolls slides synchronously with the guide pulley by sliding the guide pulley. Will be guided as it is.
[0012]
According to the configuration of the second and fourth aspects, since the groove of the guide roller is a V groove, the core rope is guided at the pitch center of the groove. Since the guide roller is disposed close to at least the entry side of the mold roll, the guiding of the core rope is ensured.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a main part of the core cord winding device A. The core cord winding device A is configured as a transmission belt manufacturing device AA, and is controlled by operating the operation panel 6 in FIG.
[0014]
As shown in FIG. 1, a core cord winding device A is disposed along a pair of mold rolls 1 and 2 and one mold roll 1, and has a core cord 3 between the mold rolls 1 and 2. Is arranged between the mold rolls 1 and 2 so as to maintain the alignment of the spirally wound core code 3. And a core code guiding means aa for guiding.
[0015]
The first mold roll 1 and the second mold roll 2 are rotatable cylindrical bodies (flat rolls) having the same diameter and the same length as each other, and are driven and rotated by the first and second main electric motors M1 and M2, respectively. It is free. These two main electric motors M1 and M2 move the first mold roll 1 and the second mold roll 2 in the same direction (direction indicated by an arrow) and mutually by the function of the control device 7 shown in FIG. A drive mechanism for driving and rotating at the same rotation speed is configured.
[0016]
The core code aligning and supplying means a is for sequentially winding a core code 3 unreeled from a core code roll (not shown) between a pair of mold rolls 1 and 2 in a spiral shape (spiral shape). A movable table 10 supported by a frame 9 so as to be movable in the axial direction (X-axis direction) of the mold roll 1 and a guide pulley 11 pivotally supported by the movable table 10 at a fulcrum p in the X-axis direction. Have been.
[0017]
The movable base 10 is driven in the X-axis direction with respect to the frame 9 by a pair of guide rails 12, a screw shaft 13 disposed therebetween, and a first screw feed mechanism 15 by a first drive motor 14. It is configured to be reciprocable. The guide pulley 11 is capable of controlled sliding movement along the axial direction of the rotationally driven mold rolls 1 and 2. The guide pulley 11 is brought close to the outer periphery of the first mold roll 1 or pressed and urged, and the fed core cord 3 is rotated through the guide pulley 11 to rotate the first mold roll 1. And the second mold roll 2 are spirally arranged at a predetermined pitch P.
[0018]
The core code guiding means aa is provided between the mold rolls 1 and 2 and includes guide rollers 101, 102, 103 and 104 having grooves 111 at a predetermined pitch P interval. The guide roller 101 is disposed on the entry side of the core cord 3 with respect to the mold roll 1, and the guide roller 102 is disposed on the entry side of the core cord 3 with respect to the mold roll 2. The guide roller 103 is disposed on the exit side of the core cord 3 with respect to the mold roll 1, and the guide roller 104 is disposed on the exit side of the core cord 3 with respect to the mold roll 3.
[0019]
As shown in FIG. 2, V-shaped grooves 111 having a V-shaped cross section are arranged in parallel at a predetermined pitch P on the surfaces of the guide rollers 101, 102, 103, and 104. The angle α of the V-shaped groove 111 is preferably in an acute angle range of 40 to 60 °, and the core cord 3 can be held at the pitch center by abutting the slope of the V-shaped groove 111.
[0020]
The guide rollers 101, 102, 103, and 104 can slide integrally in the axial direction of the mold rolls 1 and 2 while being rotatably held by a slide mechanism 105 including a motor 25. The sliding movement of the guide pulley 16 and the sliding movement of the guide rollers 101, 102, 103, 104 are synchronous with the sliding movement of the motor 14 and the motor 25 by the control of the controller 7 in FIG. Has become.
[0021]
The slide mechanism 105 is mounted on the support frame 121 for the guide rollers 101, 102, 103 and 104, a slide rail 122 for moving the entire support frame 121 in the axial direction of the mold rolls 1 and 2, and the support frame 121. It comprises a nut portion 125, a screw shaft 126 for the nut portion 125, which is provided in parallel with the slide rail 122, and a motor 25 for driving the screw shaft 126 to rotate. When the motor 25 is rotationally driven by the control device 7 in FIG. 5, the guide rollers 101, 102, 103, and 104 slide in the axial direction of the mold rolls 1 and 2. The sliding movement of the guide rollers 101, 102, 103, and 104 is at the same speed as the sliding movement of the guide pulley 16 by the control device 7 of FIG.
[0022]
The core cord winding process performed by the core cord winding device A will be described. FIG. 3 is a diagram of the initial winding state of the core cord 3 as viewed from above, and FIG. 4 is a diagram of the winding state of the core cord 3 as viewed from the side.
[0023]
First, as a preparation step, the introduction rope 131 is wound between the mold rolls 1 and 2, and the core rope 3 is connected to the introduction rope 131.
In FIG. 3, an introduction rope 131 is wound around one end side in the axial direction between the mold rolls 1 and 2, and is fixed by a joint 132. The introduction rope 131 is a monofilament rope. The tip of the stranded core rope 3 is fixed to an appropriate position of the introduction rope 131 by a joint 133.
[0024]
The guide pulley 11 is brought close to or pressed against the surface of the mold roller 1 so as to guide the core rope 3 connected to the introduction rope 13. On the other hand, the V-groove 111 at the tip of the guide rollers 101, 102, 103, 104 is set at a position where the first portion of the core cord 3 to be wound around with the introduction rope 131 is hooked.
In the illustrated example, the leading ends of the guide rollers 101, 102, 103, and 104 are slightly shifted within a range of one pitch P. However, in order to clearly show the state in which the core cord 3 is guided at the center of the V groove 111. However, it is not necessary to actually shift. This is because the difference is a small distance within one pitch of the groove 111, for example, within a range of 1.43 mm.
[0025]
Next, at the same time as the mold rollers 1 and 2 are driven to rotate, the guide pulley 11 slides in the axial direction of the mold rollers 1 and 2 so that the core body is spaced between the mold rollers 1 and 2 at a predetermined pitch P. The ropes 3 are spirally arranged.
Simultaneously with the sliding movement of the guide pulley 11, the guide rollers 101, 102, 103, and 104 slide in the axial direction of the mold rollers 1 and 2 synchronously so as to have the same moving speed.
The core rope 3 newly wound around the mold roll 1 by the sliding movement of the guide pulley 11 is guided by the V groove 111 on the tip side of the guide rollers 101, 102, 103, 104. The core rope 3 in the previous row is guided by a V-groove 111 located one back of the guide rollers 101, 102, 103 and 104. At this time, the introduction rope 131 can get over the V-groove 111 by the joints 132 and 133 in the middle, and the core rope 3 of one round is formed. A new V groove 111 is supplied to the rope 3.
[0026]
In this way, the core rope 3 wound around the mold rolls 1 and 2 is guided by the V-grooves 111 of the guide rollers 101, 102, 103 and 104, so that the core rope 3 is wound. Will be maintained. Therefore, the aligned core body cords 3 are developed from one axial end of the mold rollers 1 and 2 to the other end. The movement of the core cord 3 that slides on the mold rollers 1 and 2 in the axial direction is eliminated.
[0027]
The effects of the winding method and the winding device of the above-described embodiment will be described below.
(1) The core rope 3 does not slide on the mold rolls 1 and 2, but the guide rollers 101, 102, 103 and 104 slide and move on the mold rolls 1 and 2. The alignment of the core rope 3 is maintained. Therefore, the core rope 3 can be unfolded on the mold rolls 1 and 2 in a natural state, and no extra force is applied to the core rope 3 on the mold rolls 1 and 2 so that the mold rolls 1 The arrangement of the predetermined pitch P of the core rope 3 between the two is maintained in the same state.
[0028]
(2) Since the core rope 3 does not slide on the mold rolls 1 and 2, the mold rolls 1 and 2 can be flat rolls without teeth. Therefore, it is possible to produce various types of belts (W / D belts, rib belts, timing belts, etc.) before forming teeth by attaching uncured sheets to the inside and outside of the core rope 3 using flat rolls. can do.
[0029]
(3) Since the mold rolls 1 and 2 can be flat rolls, the same mold rolls 1 and 2 can be used until the cutting step, for example, by using urethane rolls for the surface.
[0030]
(4) The guide rollers 101, 102, 103, and 104 slide in the axial direction synchronously with the guide pulley 11, and are adjusted in comparison with the roller that crosses in the axial direction and adjusts the crossing angle. I can do it easily. Since the axial displacement of the guide rollers 101, 102, 103, 104 is at most a small distance within one pitch, the core ropes 3 aligned between the mold rolls 1, 2 are maintained with high precision. be able to.
[0031]
(4) When the arrangement pitch P is different, the guide rollers 101, 102, 103, and 104 are replaced with those having grooves at the same pitch P, and the guide pulley 11 and the guide rollers 101, 102, 103, and 104 match the pitch P. What is necessary is just to slide synchronously at a speed. Therefore, it is preferable that the guide rollers 101, 102, 103, and 104 are exchangeably attached to the support frame 121 or that the entire support frame 121 is exchangeable.
[0032]
(5) Since the guide rollers 101, 102, 103, and 104 are formed by the V-shaped grooves 111, they are guided at the center of the V-shaped grooves 111 without being affected by the variation in the diameter of the core rope 3.
[0033]
(6) Since the guide rollers 101 and 102 are arranged close to the entry sides of the mold rolls 1 and 2, the alignment of the core rope 3 with respect to the mold rolls 1 and 2 is ensured. Further, guide rollers 103 and 104 are provided not only on the entry side of the mold rolls 1 and 2 but also on the exit side, and the alignment state of the core rope 3 with respect to the mold rolls 1 and 2 is further ensured. .
[0034]
The winding method and the winding device according to the above-described embodiment can be modified and implemented as follows.
(1) The mold rolls 1 and 2 are not limited to flat rolls, but may be circumferentially toothed rolls. Even in this case, the alignment state of the core rope can be improved.
[0035]
(2) Of the guide rollers 101, 102, 103 and 104, the guide rollers 103 and 104 on the exit side of the mold rolls 1 and 2 can be omitted. Since the alignment state is easily ensured, only the guide rollers 101 and 102 on the entry side of the mold rolls 1 and 2 function sufficiently.
[0036]
(3) The groove 111 of the guide rollers 101, 102, 103, 104 is preferably a V-shaped groove, but may be a U-shaped groove or a trapezoidal groove as long as it has the function of holding the core rope 3 at the center.
[0037]
The above-described core cord winding device is incorporated as a part of a transmission belt manufacturing device. This transmission belt manufacturing apparatus AA will be described with reference to FIG.
The power transmission belt manufacturing apparatus AA includes, in addition to the core cord alignment supply means a and the core cord guide means aa, a first supply means for winding the upper core rubber sheet 4 between the pair of rolls 1 and 2. b (see FIG. 6), second supply means c (see FIG. 7) for winding the V-core rubber belt 5 between the pair of rolls 1 and 2, moving the second mold roll 2 into and out of the main roll 1, It is provided with an adjusting mechanism d capable of retaining and maintaining a lock, and cutting means g (see FIG. 8) for cutting the belt body ve formed between the pair of rolls 1 and 2 into a small width.
[0038]
The first supply means b includes an unvulcanized upper core rubber sheet (first sheet body) between the core cord 3 wound between the pair of mold rolls 1 and 2 and the first mold roll 1. 6), and guides the upper core rubber sheet roll 18 and the upper core rubber sheet 4 fed out to the lower end of the first mold roll 1 as shown in FIG. For this purpose, a rotatable inclined supply roller 19 is disposed between the pair of mold rolls 1 and 2 at an angle of 45 degrees.
[0039]
That is, the upper core rubber sheet 4 unwound from the upper core rubber sheet roll 18 is turned 90 degrees by the inclined supply roller 19, and the lower side of the belt-shaped core cord 3 having an already formed oblong diameter in side view is formed. When the sheet distal end portion 4a is placed on the portion 3a, the upper core rubber sheet 4 is moved in the direction of the first mold roll 1 by being dragged by the core cord 3 which is driven to rotate. Then, as shown in FIGS. 6 (b) and 6 (c), the sheet is pulled in with the sheet leading end 4a sandwiched between the bottom of the first mold roll 1 and the core cord lower part 3a. Thus, it is wound between the first mold roll 1 and the second mold roll 2 inside the core cord 3.
[0040]
Incidentally, the upper core rubber sheet 4 is cut in advance into a length just wound once between the first mold roll 1 and the second mold roll 2 inside the core cord 3, and is rotated once. In this case, the sheet ends 4a are set so as to abut each other. Note that the inclined supply roller 19 may be configured to be a driving rotary type using a driving unit such as an electric motor.
[0041]
The second supply means c supplies an unvulcanized V-core rubber sheet (an example of a second sheet) 5 to the outer peripheral side of the core cord 3 in which the upper core rubber sheet 4 is wound inside. As shown in FIG. 7, a V-core rubber sheet roll 20 and a pressing roller 17 pressed against the first die roll 1 from outside in the radial direction of the first die roll 1 are constituted. Have been.
[0042]
The press roller 17 is rotatably supported by the distal end of a telescopic rod 21 a of a downward electric cylinder 21 supported on an upper portion 9 a of the frame 9. The telescopic operation of the electric cylinder 21 allows the press roller 17 to move vertically. And the pressing force can be set freely. As a function, as shown in FIG. 7, the tip 5a of the V-core rubber sheet 5 unwound from the V-core rubber sheet roll 20 is used as the core cord of the portion wound around the first mold roll 1. 3 between the first mold roll 1 and the second mold roll 2 outside the core body cord 3 by being supplied between the press roller 3 and the pressing roller 17. It is turned.
[0043]
The V-core rubber sheet 5 shown in FIG. 7 is cut in advance into a length just wound once between the first mold roll 1 and the second mold roll 2 outside the core cord 3. It is set so that the tip portions 5a, 5a contact each other after one rotation. As means for moving the pressing roller 17 in and out of the first mold roll 1, various types such as a hydraulic cylinder using hydraulic pressure or air, or a mechanism that can be moved in and out by swinging are possible in addition to the electric cylinder 21. It is.
[0044]
The adjusting mechanism d rotatably supports the second mold roll 2 and moves the moving tower that supports the second electric motor M2 that belt-drives the second mold roll 2 in a direction perpendicular to the axis (Y-axis direction). It is configured to be slidable. That is, the center distance wb (see FIG. 1) between the first mold roll 1 and the second mold roll 2 can be adjusted. Therefore, by operating the adjustment mechanism d, the second mold roll 2 can be moved and adjusted in the Y-axis direction so as to match the circumference of the transmission belt B to be created.
[0045]
The cutting means g for cutting the belt body ve formed between the pair of rolls 1 and 2 into small widths is provided by utilizing the core cord alignment supply means a. That is, as shown in FIG. 1, the cutting means g includes a rotary blade 29, a third drive motor 30 for driving and rotating the rotary blade 29 by belt transmission, and an intermediate portion for mounting and supporting the rotary blade 29 and the third drive motor 30. A table 31 and a second screw feed mechanism 32 for driving and sliding the intermediate table 31 with respect to the movable table 10 in the Y-axis direction are provided.
[0046]
The second screw feed mechanism 32 includes a pair of guide rails 33, 33, a screw shaft 34 extending therebetween in the Y-axis direction, and a fourth drive motor 35 for driving and rotating the screw shaft 34. By the forward / reverse drive of the fourth drive motor 35, the intermediate table 31, ie, the cutting means g, can be moved in the Y-axis direction with respect to the movable table 10. As a result, the cutting means g is moved to a retracted position sufficiently far from the first mold roll 1 when not in use, and is moved in a direction approaching the first mold roll 1 when necessary, as shown in FIG. Then, it is moved to an operation position where only the belt body ve can be cut.
[0047]
Next, a process of manufacturing a wrapped V-belt by the transmission belt manufacturing apparatus AA will be described.
{Circle around (1)} The adjusting mechanism d is operated to move the position of the second mold roll 2 to perform an inter-axis distance setting step of setting the inter-axis distance wb with the first mold roll 1 to a desired value.
[0048]
{Circle around (2)} A core cord winding step of spirally winding the core cord 3 between the first mold roll 1 and the second mold roll 2 using the core cord alignment supply means a. (See FIGS. 3 and 4).
[0049]
(3) The upper core rubber sheet 4 is drawn between the belt-shaped core cord 3 and the first mold roll 1 using the first supply means b, and the first mold roll 1 and the second mold A first sheet supply step of winding the upper core rubber sheet 4 between the roll 2 and the roll 2 is performed (see FIG. 6). The upper core rubber sheet 4 is made to make one round, bevel cut, butt overlapped and joined. The manner of such a joint is well known, and the illustration is omitted.
[0050]
{Circle around (4)} Using the second supply means c, the V-core rubber sheet 5 is overlapped on the outer peripheral side of the band-shaped core cord 3 so that the first mold roll 1 and the second mold roll 2 A second sheet supply step of winding is performed (see FIG. 7). As in the case of the upper core rubber sheet 4, the V-core rubber sheet 5 is caused to make one round, bevel-cut, butt overlapped and joined. Upon completion of the second sheet supply step, an unvulcanized belt body ve having a predetermined width of three layers of the upper core rubber sheet 4, the core cord 3, and the V core rubber sheet 5 is created.
[0051]
{Circle around (5)} The wide belt body ve is sequentially cut from the end in the X-axis direction by using the cutting means g, and a belt dividing step of forming a plurality of small split belts vc with a predetermined width is performed (see FIG. 8). The plurality of divided split belts vc are detached from the pair of rolls 1 and 2, suspended on a work-in-progress cart, and carried out to a workplace where a next skive process is performed.
[0052]
{Circle around (6)} As shown in FIG. 9, in the skive process, the V core rubber sheet 5 in the split belt vc whose inside and outside are reversed is cut into a V-shaped cross section. Then, the rubber body cover G is covered in the covering step. After these steps, the process proceeds to the vulcanization step, and the wrapped V-belt is completed. The covering step is a step of covering the unvulcanized split belt vc having a V-shaped cross section with a rubber outer skin. The vulcanization step includes pot vulcanization and press vulcanization.
[0053]
[Another embodiment]
<< 1 >> After a core cord winding step of spirally winding the core cord 3 between the first mold roll 1 and the second mold roll 2, first, the core cord 3 is wound around the outer periphery of the core cord 3. A second sheet supply step of winding the V core rubber sheet 5 is performed, and then a first sheet supply step of drawing and winding the upper core rubber sheet 4 between the core cord 3 and each of the rolls 1 and 2 is performed. You may do it.
[0054]
<< 2 >> As the power transmission belt manufacturing method according to the present invention and the power transmission belt B manufactured by the manufacturing apparatus A, various types such as a timing belt, a low edge belt, and a ribbed belt can be used.
[0055]
【The invention's effect】
As described above, according to the core cord winding method and apparatus according to the present invention, the sliding state of the guide pulley causes the alignment state of the core rope wound between the mold rolls to be synchronized with the guide pulley. Since the guide roller is guided by a grooved guide roller that slides, it is maintained as it is. As a result, the alignment state of the core rope between the mold rolls is improved. Further, since only sliding movement is performed in synchronization with the guide pulley, fine adjustment is not required, and the alignment state of the core rope can be reliably maintained.
[0056]
According to the configuration of the second and fourth aspects, since the groove of the guide roller is a V groove, the core rope is guided at the pitch center of the groove. As a result, the alignment of the core rope by the guide rollers is reliably maintained. In addition, since the guide roller is arranged close to at least the entry side of the mold roll, the guiding of the core rope is ensured.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a core cord winding device.
FIG. 2 is a diagram showing a cross section of a groove of a guide roller.
FIG. 3 is a top view showing a winding state of a core cord. FIG. 4 is a side view showing a winding state of a core cord.
FIG. 5 is a device layout diagram of the core cord winding device.
6A is a plan view showing a first sheet supply step, and FIGS. 6B and 6C are action diagrams in which an upper core rubber sheet is drawn between a main roll and a core cord. 7 shows a second sheet feeding step, (a) is a plan view, and (b) is a side view. [FIG. 8] is a plan view showing a belt cutting step. [FIG. 9] shows a finishing step of a small split belt. It is an operation diagram [Explanation of reference numerals]
1, 2 Mold roll 3 Core code 11 Guide pulley 101, 102, 103, 104 Guide roller 105 Slide mechanism 111 V groove (groove)
a core code alignment supply means aa core code guide means b first supply means c second supply means ve belt body vc small split belt

Claims (4)

A core cord winding method of spirally winding a core cord at a predetermined pitch between a pair of mold rolls arranged in parallel with each other at a predetermined interval,
Simultaneously arranging the core body cords between the mold rolls in a spiral at a predetermined pitch via a guide pulley that slides along one axial direction of the mold roll that is driven to rotate,
The core cords arranged are guided by guide rollers provided with the grooves at the predetermined pitch interval, which are arranged between the mold rolls, and the guide rollers are slid in the axial direction in synchronization with the guide pulleys. By doing so, the core cord to the mold roll is aligned at a predetermined pitch while the core cord guided by the guide roller is developed from one end side to the other end side in the axial direction of the mold roll. Winding method. 2. The core for a mold roll according to claim 1, wherein the groove of the guide roller is a V-groove, and the guide roller is disposed close to the entry side of the core cord into the mold roll. 3. Cord winding method. A core cord winding device for a die roll for spirally winding a core cord at a predetermined pitch between a pair of die rolls arranged in parallel with each other at a predetermined interval,
A guide pulley for arranging the core cords in a spiral at a predetermined pitch between the mold rolls while sliding along one axial direction of the mold roll to be rotationally driven;
A guide roller disposed between the mold rolls and having grooves at the predetermined pitch interval, for guiding the arranged core body cords, and synchronizing the guide rollers with the guide pulleys in the axial direction. A guide roller for aligning at a predetermined pitch while sliding the core cord guided by the guide roller from one axial end to the other axial end of the mold roll. Device for winding core cord around die roll. The core according to claim 3, wherein the groove of the guide roller is a V-groove, and the guide roller is disposed close to the entry side of the core cord into the mold roll. Cord winding device.

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