JP2754332B2 - Method and apparatus for smoothing wrinkles of cloth liner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for wrinkling a cloth liner.

[0002]

2. Description of the Related Art A cloth liner is wound on a reel so as to overlap with a steel breaker or the like, which is a constituent material of a tire, and is used to prevent the rubber surfaces of the breaker from adhering to each other. It is not preferable in use when it is contained.

[0003]

However, there has not been an inexpensive and effective method of extending the wrinkles. For a liner that has a severe wrinkle, the portion is cut and discarded, and another liner without a wrinkle is cut off. It was used as a fixed-size liner by splicing. Therefore, replenishment of a new liner was frequently required to secure the required number of liners.

Accordingly, an object of the present invention is to provide a method and an apparatus which can easily and surely wrinkle a cloth liner.

[0005]

In order to achieve the above object, a method for flattening a cloth liner according to the present invention comprises the steps of: continuously connecting a cloth liner between a first hot plate and a second hot plate heated to a predetermined temperature; The first hot plate and the second hot plate are pressed against the liner while pressing the liner, and the wrinkles are extended.

Further, the leading edge of the stretch plate is formed in an arc convex shape, and the liner is slid against the leading edge with a predetermined tension so as to be spread laterally. Run the liner between the plates. In addition,
The liner that has passed through the second hot plate is heated with a predetermined tension by a heating drive roll and a heating driven roll.

[0007] In addition, the cloth liner wrinkle removing device of the present invention comprises a first hot plate and a second hot plate disposed opposite to each other, and a cloth liner pressed between the first hot plate and the second hot plate. And a heating means for heating the first hot plate and the second hot plate to a predetermined temperature, respectively.

Further, a stretch plate having a circular arc-shaped tip end for expanding the liner sideways is provided so that the tip end edge is located upstream of the first and second hot plates. A heating drive roll and a heating driven roll for applying heat at a predetermined temperature and a predetermined tension to the liner passing through the first and second hot plates were provided.

[0009]

According to the present invention, wrinkles of the liner can be continuously extended by the theory of heat stretching (ironing). In other words, the wrinkled liner is spread sideways with the wrinkles by the arc-shaped convex edge of the stretch plate,
It enters between the first hot plate and the second hot plate, and wrinkles are extended by the heat and pressure of the first and second hot plates.

[0010] The liner which has been subjected to the first-stage wrinkling by the first and second hot plates is further subjected to the second-stage wrinkling by the heat and tension received from the heating driving roll and the heating driven roll. As a result, the wrinkles are prevented from returning, and the wrinkles can be surely stretched.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1 shows an embodiment of a cloth liner wrinkling and stretching apparatus according to the present invention, which comprises a first heating plate 1 and a second heating plate 2 disposed in opposition to each other. Pressing means for pressing the first and second hot plates 1 and 2 against the cloth liner 3 running continuously between the second hot plates 1 and 2; A heating means for heating the second hot plate 2 to a predetermined temperature, a heating drive roll 4 for applying heat at a predetermined temperature and a predetermined tension to the liner 3 passing through the first and second hot plates 1 and 2, and a heating driven roll 5 is provided.

Reference numeral 6 denotes a rotatable liner holding portion, which is capable of holding the long wrinkled liner 3 in a wound shape and sending out the liner 3 in its longitudinal direction. .

In order to apply an appropriate tension to the running liner 3, the rotation of the liner holding unit 6 is braked by, for example, an air brake to impart rotation resistance to the liner holding unit 6.

As the air brake, one that can increase or decrease the braking force by adjusting the air pressure is preferable. It is to be noted that the rotation resistance can be freely given to the liner holding portion 6 by using something other than the air brake.

Next, as shown in FIGS. 1, 2 and 3,
For example, the first and second hot plates 1 and 2 are formed to have a width T sufficiently larger than the width H of the liner 3 so that the liner 3 does not protrude from the first and second hot plates 1 and 2 to the side. To consider.

Further, as a heating means for heating the first hot plate 1 and the second hot plate 2 to a predetermined temperature, respectively, a means utilizing steam heat such as a steam box or the like, or an electric means such as a heating wire or the like. One that utilizes the heat generated is given.

The heating temperature of the first hot plate 1 and the second hot plate 2 is, for example, 90 to 120 ° C., preferably 100 to 120 ° C.
110 ° C. In the case of using steam heat, the steam may be jetted from at least one pressing surface of the first hot plate 1 and the second hot plate 2 to both surfaces of the liner 3.

As the pressing means for pressing the liner 3 between the first hot plate 1 and the second hot plate 2 in a pressing manner, a weight, a spring, a cylinder or the like can be used. The first hot plate 1 is fixed, and a weighted second hot plate 2 is provided on the first hot plate 1 so as to be vertically movable, so that an appropriate pressing force can be obtained.

When a spring or the like is used, one of the first hot plate 1 and the second hot plate 2 is used as a fixed side and the other is used as a movable side, or the first hot plate 1 and the second hot plate 2 are used as a movable side. Both of them are movable sides, and a suitable pressing force is obtained by a spring or the like.

Reference numeral 7 denotes a stretch plate, and its leading edge 7
a is located upstream of the first and second hot plates 1 and 2,
(In the illustrated example, on the first hot plate 1 side).

The front edge 7a of the stretch plate 7 is formed in a circular arc convex shape having a large radius R, and the liner 3 is bent at the front edge 7a so that one surface of the liner 3 is connected to the front edge 7a.
, So that the liner 3 spreads laterally.

The radius R is, for example, 800 to 1200 mm, preferably 900 to 1100 mm. The leading edge 7a
The edge is preferably rounded so as to smoothly contact the liner 3.

In the illustrated example, the stretch plate 7 is formed by bending a round bar 8a having a predetermined outer diameter (for example, about 10 mm) to a radius R, and fixing it to the leading edge of the flat plate portion 8b. However, other structures may be used. In FIG. 3, the stretch plate 7 is attached to the pressing surface of the first hot plate 1. However, the stretch plate 7 has a shape cut from a portion indicated by a dashed line A in FIG. As shown in FIG. 1, the first heating plate 1 may be provided so as to protrude from the front end surface thereof.

As shown in FIG. 1, a plurality of heating drive rolls 4 (three in the illustrated example) are arranged in parallel on the downstream side of the first and second heating plates 1 and 2. The liner 3 is rotated by a drive motor 9 via a belt or the like.

A variable speed motor is used for the drive motor 9.
Depending on the degree of wrinkling of the liner 3, the feed rate can be adjusted to an appropriate value. For example, when wrinkles are severe, the feeding speed is reduced so that the first and second hot plates 1 and 2 can sufficiently apply heat and pressure to the liner 3. The feed speed of the liner 3 is, for example, 1 to 4 m / min, preferably 2 to 3 m / min.

A grip roller 10 can press the liner 3 against the heating drive roll 4 by driving the air cylinder 11. Thereby, the torque of the heating drive roll 4 is reliably transmitted to the liner 3, and the feeding is stabilized.

The heating driven rolls 5 are rotatably disposed so as to be opposed to the two upstream heating driving rolls 4 and 4 respectively, and the heating driven rolls 5 and 5 and the heating driving rolls 4.
Then, the liner 3 is stretched so that the running direction is changed by about 180 ° in order to apply tension.

As the heat source of the heating driven roll 5 and the heating drive roll 4, steam heat or electric heat is used. Further, steam can be spouted from the outer peripheral surfaces of the rolls 4 and 5 to the liner 3.

Next, reference numeral 12 denotes an encoder attached to the detection roller 13 for counting the feed amount of the liner 3, and reference numeral 14 prevents the liner 3 from being broken in the liner winding section 15. EPC device (cross guider).

The liner take-up section 15 can be rotated by an air motor or the like to take up the wrinkled liner 3. The take-up speed of the liner 3 at the liner take-up section 15 is appropriately higher than the feed speed of the liner 3 by the drive motor 9 so that the liner 3 is not excessively tightened.

Now, a method for smoothing wrinkles by the wrinkle stretching apparatus configured as described above will be described. First, the wrinkled liner 3 is set on the liner holding portion 6 as shown in FIG. 1, and the first and second hot plates 1 and 2, the rolls 4 and 5, the detection roller 13, the EPC device 14, etc. Crossover, liner winding section 15
Wrap around.

Next, the first and second hot plates 1 and 2 and the rolls 4 and 5 are heated to predetermined temperatures, respectively, and the heating drive roll 4 and the liner winding section 15 are driven to rotate. The liner 3 is continuously moved from the liner holding unit 6 to the liner winding unit 15 while applying an appropriate tension to the liner 3 by cooperating with the liner holding unit 6.

Then, the liner 3 pulled out from the liner holding portion 6 is brought into sliding contact with the arc-shaped convex leading edge 7a of the stretch plate 7 with a predetermined tension, and is expanded to the side. While continuously running the liner 3 between the hot plate 1 and the second hot plate 2, the liner 3 is pressed by the first hot plate 1 and the second hot plate 2 in a sandwiching manner.

The heat and pressure of the first and second heating plates 1 and 2 are applied to the liner 3 to increase wrinkles. Moreover, the liner 3 is stretched to the side by the arc-shaped convex leading edge 7a immediately before the first and second heat plates 1 and 2, so that even when the liner 3 is severely wrinkled, The wrinkles on the plates 1 and 2 can be smoothed and reliably performed.

Further, the liner 3 that has passed through the first and second hot plates 1 and 2 and has been stretched is heated with a predetermined tension by a heating drive roll 4 and a heating driven roll 5. By this heat and tension, wrinkles of the liner 3 are prevented from returning, and wrinkles are further stretched to perfect the wrinkles of the liner 3.

Then, the liner 3 having passed through the heating drive roll 4 and the heating driven roll 5 is wound around the liner winding section 15 after running the EPC device 14 and the like.

[0038]

Since the present invention is configured as described above, the following significant effects can be obtained.

According to the method and the apparatus for removing wrinkles of a cloth liner according to the first and fourth aspects, the wrinkles of the liner 3 can be reduced simply and inexpensively by the first and second hot plates 1 and 2. Therefore, it is not necessary to cut and discard the wrinkled portion of the liner 3 or splice it with another liner, and it is not necessary to frequently replenish a new liner in order to secure the required number of liners. Can be omitted. In addition, since the liner 3 can be continuously wrinkled, the wrinkle can be expedited.

According to the method and the apparatus for elongating wrinkles of a cloth liner according to claims 2 and 5, after the wrinkles of the liner 3 are widened by the arc-shaped convex leading edge 7a of the stretch plate 7, -Since the wrinkles can be stretched by the second hot plates 1 and 2, even when the wrinkles of the liner 3 are severe, the wrinkles can be smoothly and reliably stretched.

According to the method and the apparatus for elongating wrinkles of a cloth liner according to the third and sixth aspects, the first and second hot plates 1 and 2 are provided.
And the heating drive roll 4 and the heating driven roll 5,
Since wrinkling is performed in two stages, the wrinkles of the liner 3 do not return, and the wrinkling can be more reliably performed.

[Brief description of the drawings]

FIG. 1 is a simplified overall view showing one embodiment of the present invention.

FIG. 2 is a plan view of a main part of a stretch plate.

FIG. 3 is a perspective view of a main part of a first hot plate and a second hot plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First hot plate 2 Second hot plate 3 Liner 4 Heating drive roll 5 Heating driven roll 7 Stretch plate 7a Tip edge

Claims (6)

(57) [Claims] 1. While continuously running a cloth liner 3 between a first hot plate 1 and a second hot plate 2 heated to a predetermined temperature, the first hot plate 1 and the second A method for smoothing wrinkles of a cloth liner, characterized in that the hot plate (2) is pressed in a pinching manner to smooth wrinkles. 2. A front end edge 7a of the stretch plate 7 is formed in an arc-like convex shape, and the liner 3 is slid in contact with the front end edge 7a with a predetermined tension so as to expand to the side. 2. The method of claim 1, wherein the liner is run between the first hot plate and the second hot plate. 3. The liner 3 having passed through the first and second hot plates 1 and 2 is heated by a heating drive roll 4 and a heating driven roll 5,
3. The method according to claim 1, wherein the cloth liner is heated with a predetermined tension. 4. A first hot plate 1 and a second hot plate 2 disposed in opposition to each other, and a cloth liner 3 is pressed between the first hot plate 1 and the second hot plate 2 in a pressing manner. A device for removing wrinkles from a cloth liner, comprising: pressing means; and heating means for heating each of the first hot plate 1 and the second hot plate 2 to a predetermined temperature. 5. A stretch plate 7 having an arc-shaped convex edge 7a for expanding the liner 3 to the side so that the edge 7a is located on the upstream side of the first and second hot plates 1 and 2. The apparatus for removing wrinkles of a cloth liner according to claim 4, wherein the apparatus is provided. 6. The heating drive roll 4 and the heating driven roll 5 for applying heat of a predetermined temperature and a predetermined tension to the liner 3 passing through the first and second hot plates 1 and 2 are provided. Wrinkling device for cloth liners.