JPH0679695B2 - Dip roll device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dip roll device used in a dip treatment device that performs a dip treatment for attaching an adhesive to a cord used for a core of a belt.

(Prior Art) Conventionally, there is known a dip processing machine for preliminarily attaching an adhesive to the core cord in order to enhance the adhesiveness of the core cord used for the belt.

In such a dip processing machine, a dip roll is rotatably supported on a shaft member in a dip tank containing an adhesive, and a cord is wound around the dip roll to pass through the dip tank (adhesive). As a result, the adhesive is attached to the surface of the cord.

(Problems to be Solved by the Invention) However, such a dip roll needs to always rotate in the adhesive in the dip tank for smooth running of the cord. A coagulated product of the adhesive (for example, a latex of RFL liquid) staying in the space is generated, and the coagulated product may adhere to the shaft member to hinder the smooth rotation of the dip roll.

Further, even if the rotation of the dip roll is not hindered, the solidified matter may flow out and be dispersed in the adhesive in the tank, and the solidified matter may adhere to the cords, which may cause poor adhesion.

The present invention has been made in view of the above points, and an object of the present invention is to provide a dip roll device that prevents the generation of a solidified substance in an adhesive and prevents rotation failure of the dip roll.

(Means for Solving the Problems) In order to achieve the above object, the present invention is premised on a dip roll device used in a dip treatment device that performs a dip treatment for attaching an adhesive to a cord used for a core of a belt. And a dip tank containing the adhesive, at least one dip roll rotatably disposed in the dip tank containing the adhesive, around which a cord to be dip-processed is wound, and a central hole of the dip roll. It is configured to have a shaft member that has a shaft portion that is inserted and rotatably supports the dip roll, and a coil spring that is rotatably interposed between the center hole of the dip roll and the shaft portion of the shaft member. It is a thing.

(Operation) The coil spring is also rotated by the rotation of the dip roll, and the adhesive between the center hole of the dip roll and the shaft portion of the shaft member is moved to the outside of the dip roll by the rotation of the coil spring. No coagulation of the adhesive occurs as it flows in and there is always a flow of adhesive.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

1 and 2 showing the overall configuration of a vertical dip processing device
In the figure, in the dip processing device 1, a creel stand 3 is arranged below the inspection stand 2, and a cord 5 that has not been dip fed from a cheese 4 rotatably supported by the creel stand 3 is 1st to 4th zones Z _{1 to} Z ₄
In, the dip treatment is performed using three kinds of adhesives (dip treatment liquid). Then, the cord 5 that has undergone the dip processing is configured to be wound by the bobbin 7 of the automatic winding machine 6.

In each of the zones Z _{1 to} Z ₄ , first to fourth dip tank means 11 to 14 for accommodating the adhesive are arranged below, and above each dip tank means 11 to 14, each dip tank means is provided. Corresponding to 11-14, each dip tank means 11-14
First to fourth drying and heating means 15 to 18 for drying and heating the cord 5 after the treatment in 1 are provided. By this, the first
Thus, the fourth to fourth drying / heating means 15 to 18 and the first to fourth dip tank means 11 to 14 are arranged vertically at substantially the same position.

The first dip tank means 11 is a first dip tank.
A pair of dip rolls in which the cord 5 is wound a plurality of times in the inside 19, that is, upper and lower dip rolls 20, 21
(A flat roll on the upper side and a grooved roll on the lower side) are arranged vertically so that the dip rolls 20 and 21 are immersed in the adhesive 22. The first dip tank 19 has a cover member around its periphery.
Surrounded by 23 and isolated from the surroundings. Two dip rolls 20 and 21 are provided so that the cord 5 is wound a plurality of times between the dip rolls 20 and 21 so that the immersion time in the adhesive 22 can be extended.

The second and third dip tank means 12, 13 are a pair of dip rolls 26, 27, 28, 29 in which the cord 5 is wound a plurality of times in the second and third dip tanks 24, 25, respectively.
Are arranged above and below, and the dip rolls 26, 27, 28, 29 are immersed in the adhesive 30, 30 by the first dip tank means 11.
However, the surroundings are not covered by the cover member.

Further, as shown in detail in FIG. 3, the cord 5 coming out from the second and third dip tanks 24, 25 is the air wiper 32,
It's going to go through 32, so code 5
The amount of adhesion of the adhesive 30, 30 to the is controlled. As shown in FIG. 4, the air wiper 32 is supplied with compressed air from the air supply port 32b with respect to the through hole portion 32a through which the cord 5 passes, and by controlling the amount of compressed air supplied, It is configured to obtain the attached amount of. The first
Further, in the fourth zones Z ₁ and Z ₂ , a touch roll 181 and a sponge 182 are used instead of the air wiper 32.

Further, the grooved lower dip rolls 27 and 29 are, for example, as shown in FIG. 5 for the dip roll 27, the shaft portion 33a of the shaft member 33 that rotatably supports the dip roll 27.
, And a coil spring 34 is interposed between the center hole 27a of the dip roll 27. As a result, the coil spring 34 is also rotated by the rotation of the dip roll 27, and the rotation of the coil spring 34 causes a flow of the adhesive in the central hole 27a of the dip roll 27, which suppresses the generation of a solidified product of the adhesive. To be done. Although not shown, the dip roll 27 is attached and fixed to the shaft member 33 by a snap ring. A coil spring (not shown) is similarly interposed between the upper flat dip rolls 26 and 28.

The fourth dip tank means 14 is a grooved dip roll formed by winding the cord 5 twice instead of two dip rolls in the dip tank 35 containing the adhesive 37.
The first dip tank means 11 differs from the first dip tank means 11 in that only one 36 is provided, but the dip tank 35 is common in that the circumference is surrounded by the cover member 38 and is cut off from the circumference.

Further, in the first and fourth dip tanks 19 and 35, the reason that the tank periphery is covered with the cover members 23 and 38 is that toluene is used as a solvent for the adhesive,
In addition, the inside of the blower 113, 114 is used as exhaust means 85, 88 described later.
This is because it is necessary to eliminate them locally. Since the adhesive in the second and third dip tanks 24, 25 is not solvent (toluene) type but water type adhesive, local discharge is unnecessary.

That is, the adhesive stored in each of the dip tanks 19, 24, 25 and 35 is isocyanate + toluene in the first dip tank 19 and R in the second and third dip tanks 24, 25.
FL (resorcin / formalin / latex) / water, 4th
In the dip tank 35, it is glue rubber + toluene. Each adhesive does not function until it has been dried. Second
In the third zone Z ₂ and Z ₃ , the same thing is dip-processed twice, but since the amount of adhesion is insufficient with one dip process, two dip processes are performed. Of. RF is used for the dip processing with glue rubber.
The final treatment is carried out for the purpose of preventing L from ultraviolet rays and for giving adhesiveness to the rubber sheet during molding.

Further, the first drying and heating means 15 is long in the vertical direction,
Inside, an oven 42 in which a hollow slit member (not shown) is arranged so that heating can be performed uniformly in the vertical direction is provided. Upper and lower grooved turn rolls 43, 44 are arranged above and below the oven 42, and the cord 5 coming in from the lower side with respect to the upper and lower grooved turn rolls 43, 44. It is wound several times between both turn rolls 43 and 44, and then comes out from the lower side.

The second and third drying / heating means 16 and 17 are also provided with slit members (not shown), ovens 49 and 50, and upper and lower turn rolls 5.
It is the same as the first dry heating means 15 in that it has 1,52,53,54, but it is first outside the upper part of the ovens 49,50 and above the upper turn rolls 51,52, first in the upper turn rolls 51,52. It is different in that top rolls 55, 56 around which the cord 5 wound around are wound are arranged. Here, the cord 5 that is first lifted from the lower side is wound around the top rolls 55 and 56 located above the upper turn rolls 51 and 52 and is put out of the ovens 49 and 50. This is to prevent the RFL liquid from adhering to the turn rolls 51, 52, 53, 54 by drying the RFL liquid and promoting the reaction.

The fourth drying and heating means 18 includes the oven 57 and the grooved upper and lower turn rolls 58 and 59 in that the first drying and heating means 1 is used.
5 is the same as 5 but is different in that the slit member is not provided inside the oven 57.

The upper and lower turn rolls 43, 51, 52, 58 and 44, 53, 54, 59 of the first to fourth drying and heating means 15 to 18 are an oven top cover 45 and an oven under cover, respectively.
Covered at 46.

Further, with respect to the first to fourth drying and heating means 15 to 18,
First to fourth cooling means 61 to 64 for cooling the cord 5 heated by the drying and heating means 15 to 18 are arranged adjacent to the advancing direction of the cord 5, that is, laterally.

The first to fourth cooling means 61 to 64 are provided between the ovens 42 and 49 of the first and second drying and heating means 15 and 16, and the second and third cooling means, respectively.
Between the ovens 49 and 50 of the dry heating means 16 and 17, between the ovens 50 and 57 of the third and fourth dry heating means 17 and 18, and below the third dry heating means 17 of the fourth dry heating means 18. It is installed in. Each of the cooling means 61 to 64 includes a pair of rollers 65, 66, 67, 6
8,69,70,71,72 are not arranged vertically, the rollers 65,
The cord 5 after drying and heating is wound a plurality of times during 72, and is cooled to a predetermined temperature or lower. Here, the cord 5 is cooled, for example, when the cord 5 to be treated is a polyester cord, the first glass transition temperature is 70.
This is because it is said that the temperature is about 0 ° C., and if the tension is applied at a temperature higher than this, the physical properties of the cord 5 change. That is,
The temperature of the cord 5 itself, which comes out of the orbs 42, 49, 50, 57, changes depending on the ambient temperature, but it is usually 70 ° C or higher, and the first
Since the tension generated in the fourth pull roll devices 121 to 124 causes variations in the physical properties of the cord 5, the ovens 42, 4
By cooling Code 5, which came out of 9,50,57, to below 70 ℃,
The physical properties of Code 5 are made stable.

Further, first to fourth hot air supply means 81 to 84 for supplying hot air to the dry heating means 15 to 18 are provided above the first dry heating means 15 to 18 and the first to fourth dry heating means. 15-18
First to fourth exhaust means 85 to 88 for exhausting exhaust air from the first to fourth dry heating means 15 to 18 are arranged adjacent to each other in the lower part of the.

The first hot air supply means 81 is configured to heat the air from the two direct drive type blowers 91, 92 by the heaters 93, 94 and supply it as hot air into the oven 42.

The second to fourth hot air supply means 83, 84, 85 are respectively
One direct drive type blower 101,102,103,
It has one heater 104, 105, 106.

The first and fourth exhaust means 85, 88 are drive motors 111, 112.
It has blowers 113 and 114 that are driven to rotate by the oven 42,
Exhaust gas is sucked and discharged from the lower opening of 57, and the cover members 23, 38 of the first and fourth dip tank means 11, 14 are also discharged.
It is also designed to exhaust air from inside.

The second and third exhaust means 86, 87 are constituted by a common blower 115, and the exhaust (hot air) discharged from the lower openings of the ovens 49, 50 is supplied to the blowers 101, 102 of the hot air supply means 82, 83.
It is designed to be used for recycling. Blower
115 is provided in the second zone Z ₂ , and the drive motor (only the drive pulley 116 is shown) is provided in the third zone Z ₃ .

Further, on the front side of the first to third dip tank means 11, 12, 13 and on the rear side of the fourth zone Z ₄ , first to fourth pull roll devices 121 to 124 are arranged, and the pull roll devices 121 to 124. It is designed to cut the tension before and after. 1st and 4th
The pull roll device 121,124 is composed of grooved pull rolls 125,126 and flat pull rolls 127,128 which are arranged above and below,
The second and third pull roll devices 122 and 123 include grooved pull rolls 129 and 130 and flat pull rolls 131 and 132, which are arranged in the front-rear direction.
Consists of.

Further, the tension of the cord 5 is omitted between the first and second zones Z ₁ and Z ₂ , the second and third zones Z ₂ and Z ₃ , and the third and fourth zones Z ₃ and Z ₄ , respectively. First to third tension control devices 151, 152, 153 for keeping constant are provided.

Further, guide rollers 161, 162 for guiding the cord 5 are provided inside the cover members 23, 38 of the first and fourth dip tank means 11, 14 and before and after the fourth dip tank means 14, respectively.
163 and 164 are provided respectively. Further, the guide rollers 165, 16 are also provided in front of the tension control devices 151, 152, 153.
6,167,168,169,170 are arranged.

With the above configuration, in the first zone Z ₁ ,
Code 5 from dipping cheese 4 before dipping
Is wound a plurality of times between the pull rolls 128 and 127 of the first pull roll device 121 to adjust the tension, and is then located adjacent to the upper pull roll 125 of the first pull roll device 121 and within the cover member 23 of the first dip tank means 11. Guide roller 16
It is wound a plurality of times around the upper and lower dip rolls 20 and 21 in the dip tank 19 via 1, and the dip processing of the first stairs is performed.

After that, the adhesion amount of the adhesive is adjusted via the touch roll 181, passes through the rear side of the lower turn roll 44, and is dried,
It is guided into the first oven 42 for heating. In the first oven 42, the cord 5 has upper and lower turn rolls 43, 4
The adhesive is dried, stretched and heat-fixed by being wound multiple times between the four.

Then, the cord 5 coming out of the oven 42 through the guide rolls 165 and 166 is the first tension control device 15
The tension (tension) is adjusted by 1 and then sent to the first cooling means 61 (rollers 65, 66) and the physical properties of the cord 5 which has been heated by the drying and heating in the oven 42 are not changed. It is cooled down to a predetermined temperature or lower.

After the cord is cooled, the second pull roll device 122 located between the first zone Z ₁ and the second zone Z ₂ reaches the second zone Z ₂ .

Hereinafter, in the second to fourth zones Z _{2 to} Z ₄ , the same operation is performed by changing the kind of the adhesive and finally the winding machine 6
It is adapted to be wound around the bobbin 7.

Further, in the second and third dip tank means 12 and 13 for adhering the RFL liquid to the cord surface, as the dip rolls 26, 27, 28 and 29 are rotated by the traveling of the cord 5, the dip roll 26 is rotated. Since the coil spring (only the coil spring 34 for the dip roll 27 is shown) also rotates due to the inside of the center holes of ~ 29, the rotation of the coil spring causes a flow of the adhesive in the center holes of the dip rolls 26 ~ 29. Since the adhesive in the central holes of the dip rolls 26 to 29 is constantly moving, the generation of a coagulated product of the adhesive is suppressed.

Therefore, the coagulate of the adhesive will be absorbed by the dip rolls 26-29.
Attached to the rotatably supported shaft agent, and dip roll
It does not hinder the smooth rotation of 26 to 29, and the solidified material of the adhesive flows out and is dispersed in the adhesive contained in the tank and adheres to the surface of the cord 5 to cause the adhesion failure. It never becomes.

(Effect of the invention) As described above, the present invention has a coil spring interposed between the dip roll and the shaft member, and the coil spring is used as an adhesive between the central hole of the dip roll and the shaft portion of the shaft member. Since the rotation is caused to generate a flow, the adhesive is always moving, and the adhesive does not solidify.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIGS. 1 and 2 are a front view and a side view of a vertical dip processing apparatus, respectively.
FIG. 4 is an explanatory view of the second and third dip tank means, FIG. 4 is a sectional view of the air wiper, and FIG. 5 is a sectional view of the dip roll. 1 …… Dip processing device 5 …… Code 19,24,25,35 …… Dip tank 26 to 29 …… Dip roll 26a …… Center hole 33 …… Shaft member 33a …… Shaft 34 …… Coil spring

Claims (1)

[Claims] 1. A dip treatment device for performing a dip treatment for adhering an adhesive to a cord used as a core of a belt, the dip tank containing the adhesive, and rotatable in the dip tank. At least one dip roll around which a cord to be dipped is wound, a shaft member that has a shaft portion that is inserted into a central hole of the dip roll, and rotatably supports the dip roll; A dip roll device having a coil spring rotatably interposed between a center hole and a shaft portion of a shaft member.