JPH09209229A - Machine for cord-dipping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive compacted cord-dipping device reduced in the number of rolls to shorten a cord-passing operation time by disposing a part of a driving roll having a cord wound thereon several times in a dipping liquid received in a dipping tank so as to use the driving roll also as a dipping roll. SOLUTION: This cord-dipping device is used as follows: pulling out a cord 10 used as a core cord of an industrial belt useful for transmitting a powder with a driving and dipping device 19a, imparting a constant tension to the cord, simultaneously dipping the cord in a dipping tank 23, repeatedly reciprocating the treated cord in an oven and simultaneously heating the cord, cooling the cord outside the oven and subsequently winding up the treated cord on a winder. Therein, the driving dipping device 19a has a pair of driving rolls 24a, 24a' disposed in parallel to each other, and a driving means 55 for rotating a pair of the driving rolls 24a, 24a'. The cord 10 is spirally wound between the driving rolls 24a, 24a' plural times, and a part of the driving roll 24a' is immersed in a treating liquid received in the dipping tank 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord dip processing machine, and more specifically, a cord used for a core wire of an industrial belt for power transmission is pulled out from a creel stand by a driving dip device to apply a constant tension. The present invention relates to a cord dip processing machine, which is subjected to a dip treatment with a treatment liquid such as an adhesive, followed by heat treatment in an oven and winding this with a winder.

[0002]

2. Description of the Related Art Industrial belts for power transmission, such as V-belts, V-ribbed belts, and toothed belts, are made of a fiber material such as polyester fiber, aramid fiber, or glass fiber as a core wire as a tensile member. And the code is used. This cord is RFL (resorcin formalin latex) treated only, or RFL treated after pre-treatment with epoxy or isocyanate compound, or rubber glue is adhered after RFL treatment in order to enhance the adhesiveness with rubber material. I was

The above cord is continuously withdrawn from the creel by the first driving roll of the cord dipping machine, impregnated with the adhesive liquid in the first dip tank, and then sent into the first oven to be dried by heating. After being cooled outside the oven and sent to the second drive roll, the first treatment step is completed while applying a constant tension between the first drive roll and the second drive roll, and then the second, third, fourth Repeatedly pass through the same treatment steps as above, and impregnating and adhering the treatment liquid with a different composition for each step, and heat stretching treatment under different oven temperature conditions and tension conditions to give the belt the optimal cord physical properties. It was wound up on a reel and the dip processing was completed.

Conventionally, such a code dip processing machine has its own drive roll and dip roll. As a general form of this roll, for example, JP-A-4-146232 and JP-A-4-14623 are available.
As disclosed in Japanese Unexamined Patent Publication (Kokai) No. 0, in order to maintain the cord tension between the two rolls in the driving roll, the cord is circulated a plurality of times, and the treatment liquid is attached even in the dip roll. In order to secure the amount, the cord was wound around the upper and lower rolls in the dip tank a plurality of times and immersed in the treatment liquid.

[0005]

SUMMARY OF THE INVENTION In the above code dip processing machine, when a code is newly passed through the processing machine during the operation preparation stage after cleaning and maintenance, the drive roll and dip In a zone where cords reciprocate between rolls, such as rolls, the cord threading work is complicated and time-consuming, hindering the efficiency of operation preparation work. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has been made to improve such problems. It is an object of the present invention to provide an inexpensive cord dip processing machine by reducing the number of rolls, shortening the cord threading work time, and downsizing it by providing the same function as a dip roll.

[0006]

That is, according to the present invention, a cord used for the core of an industrial belt for power transmission or the like is pulled out by a driving dip device, and a treatment liquid stored in a dip tank while applying a constant tension. In the cord dipping machine, which is heat treated by repeatedly reciprocating inside the oven and then cooled outside the oven after being dipped in the oven, a pair of drives in which the above driving dipping devices are arranged in parallel. It has a drive means for rotating the roll and the pair of drive rolls, the cord is spirally orbited a plurality of times between the drive rolls, and a part of the drive roll is immersed in the treatment liquid contained in the dip tank. It is in the code dip processing machine arranged as described above. Further, the present invention also includes a cord dip processing machine in which a plurality of pins are arranged in a zigzag pattern and a cord separator for individually passing cords between the pins is arranged between a pair of driving rolls arranged in parallel. .

[0007]

In the code dipping processor according to claim 1 of the present application,
In the drive dip device, a part of the two drive rolls is arranged so as to be immersed in the treatment liquid contained in the dip tank, and the cord is spirally wound between the rolls to maintain the cord tension, and By making a plurality of turns enough to secure the amount of treatment liquid deposited, the drive roll and the dip roll can be used in common, and the number of rolls can be reduced, so that the cord threading work time can be shortened. Further, in the invention of claim 2, the cord separator in which the plurality of pins are arranged in a staggered manner is arranged between the pair of drive rolls arranged in parallel, so that the knot between cords whose cross-sectional area increases rapidly is formed. It has the function of allowing the cord to pass smoothly and preventing the cord from being cut.

[0008]

1 is an overall view of a cord dipping machine according to the present invention, FIG. 2 is a front view of a drive roll portion, and FIG. 3 is a partially cutaway side view of FIG. The code dip processor 1 shown here includes a first processing unit 2, a second processing unit 3, and a third processing unit 3.
The processing unit 4 and four zones up to the fourth processing unit 5 are mounted on the common frame 6. Each processing unit has basically the same structure, and the mounting members are also the same.

The oven 7 (7a, 7b, 7) of each processing section
c, 7d) are arranged horizontally and are of an indirect heating type in which hot air is forcibly circulated. The heated air generated from the indirect heating heater 8 arranged outside the oven 7 a is forced to flow in the oven 7 by the fan 9 that circulates hot air, and then circulates through the duct 14.
The oven 7 is provided with a door 11 on a side facing a cord passing work surface 35 (which is a side where an operator passes a cord or inspects a cord or a processing liquid), and a return roll 12 is provided at an entrance of the oven 7. , 13 are provided. The operation panel 36 is installed in the inclined space on the inlet side of the ovens 7a and 7b.
Is installed. A temperature control device, a gas concentration detector, and an intake / exhaust duct (none of which is shown) may be provided.

The cord 10 to be treated is wrapped around a paper tube 16 supported by a creel stand 15 in an untreated white background to form cheese 17a. The spare cheese 17b arranged adjacent to the end of the cord 10 is connected by a knot 18 and a long-time continuous operation is performed.

The cord 10 has a first speed control means.
It is pulled out at a constant speed by the driving dip device 19a,
A slight amount of preliminary tension is applied by the friction tensioner 21 via the guide ring 20, guided by the grooved guide roll 22, and enters the first drive dipping device 19a.

The first drive dipping device 19a is shown in FIG.
And, as shown in detail in FIG. 3, two cylindrical driving rolls 24a, 24a 'are arranged in parallel vertically and
The roller shaft 25 is rotatably supported by a bearing box 27 with a bearing 26, and two roll shafts 25 are attached to a toothed belt 28.
Drive means 55 composed of a geared motor 29 having one end of the roll shaft 25 and a speed control means.
Connected to Furthermore, the drive roll 24 arranged on the lower side
The dip tank 23 is mounted on the elevating device 30 just below a ', and the dip tank 23 contains the treatment liquid 32 contained in the tank.
Is set so as to immerse a part of the drive roll 24a '.

The processing liquid 32 is automatically supplied from the processing liquid tank 34 so that the surface of the processing liquid in the dip tank 23 is kept substantially constant. The processing liquid tank 34 is of a detachable and portable type, in which a U-shaped hook metal fitting 38 is attached to one end of a cylindrical main body portion 37 for containing the processing liquid 32, and the other end has an inner diameter dimension. An upper flange 40 having an opening equal to the inner diameter is mounted, and a socket 43 protruding with a packing 41 made of a Teflon sheet or the like sandwiched therebetween.
It has a flange portion 39 obtained by fastening a lower flange 42 having the above with screws 44 or the like. Therefore, when the flange portion 39 is disassembled and the lid of the treatment liquid tank 34 is opened, the inside can be inspected and the treatment liquid remaining slag and solid matter can be inspected and cleaned. The processing liquid tank 34 includes the frame 6
It is suspended via a spacer 46 that is inserted into a bracket 45 that is fixed in a state of protruding.

The conduit 31 communicates with the socket 43 protruding from the lower flange 42, so that the liquid in the processing liquid tank 34 can be surely put in the dip tank 23. The conduit 31 has an opening / closing valve 51 with a lever 48 for stopping the flow of the processing liquid 32. The on-off valve 51 is most preferably a well-known ball cock with a Teflon seal. The dip tank 23 containing the treatment liquid 32 has a lower drive roll 24a 'in contact with the treatment liquid 32, and also contains a conduit opening 33 therein.

The processing liquid tank 34 is a processing liquid filling place (not shown).
1 is directed upward, the lever 48 is turned to open the on-off valve 32, and then a predetermined amount of the treatment liquid 32 is injected from the conduit opening 33. When the on-off valve 51 is closed, the conduit 31 is tumbled downward,
After confirming that there is no liquid leakage to the outside of the treatment liquid tank 34, the treatment liquid tank 34 is conveyed to the cord dip treatment machine 1 and is suspended from the bracket 45 attached to the frame 6 via the spacer 46. By opening the on-off valve 51, the processing liquid 32 in the processing liquid tank 34 flows through the conduit 31 into the dip tank 32, and the rise of the liquid level is stopped at the position in contact with the conduit opening 33. After that, the processing liquid 32 is automatically supplied from the processing liquid tank 34 by the operation of the cord dip processing machine 1 by the consumed amount, and adheres to the cord 10 while always maintaining a substantially constant level.

The treatment liquid tank 34b shown in FIG. 2 is used when a continuous operation for a long time exceeding the capacity of one treatment liquid tank 34a is performed, and the treatment liquid 32 can be continuously supplied. Two sets of processing liquid tanks 34a, 34b of the same shape are suspended by a hook metal fitting 38 from a bracket 45 attached to the frame 6 via a spacer 46. At the time of mounting, it is necessary that the heights of the respective conduit openings 33 are set to be equal. Further, when the spare processing liquid tank 34b is installed, the amount of the processing liquid in the processing liquid tank 34a already installed becomes small, and the processing liquid 32 in the installed processing liquid tank 34a is consumed. By temporarily using it together until it is prepared, the processing solution can be continuously supplied.

Thus, the cord 10 is connected to the first drive roll 2
4a, 24a 'are spirally divided by a number of times sufficient to secure a frictional force that does not slip due to the cord tension, and a part of the first drive roll 24a' disposed below is immersed in the treatment liquid 32. Then, the cord 10 is fed in while performing the dip processing. In this case, the amount of the treatment liquid 32 attached to the cord 10 increases or decreases depending on the residence time in the liquid.
By appropriately changing the thickness of 6, the mounting height of the treatment liquid tank 34, that is, the level of the treatment liquid 32 in the dip tank 23 is adjusted to secure an optimum amount of adhesion.

In the middle portion of the first drive rolls 24a, 24a ', separators 49, in which a plurality of pins 50 are alternately arranged in a zigzag pattern on both sides in the traveling direction of the cord 10, are arranged. Pass the code 10 individually between
It is arranged at a constant pitch and smoothly passes through the projecting cord knots 18.

The cord 10 exiting the first drive dipping device 19a enters the oven 7a after circling the grooved guide roll 57 for a quarter turn, and the grooved return rolls 12 and 13 installed at the entrance and exit of the oven 7a. Is reciprocated a plurality of times to be heated and dried to exit the oven 7a, and the grooved guide roll 51 disposed on the rear side of the oven exit side makes a 1/4 revolution to reach the second drive dipping device 19b. During this time, the cord 10 is left to cool in the air, and the first processing unit 2 is finished.
The grooved return rolls 12 and 13 are independently rotatably supported on a common shaft in a number equal to the number of turns of the cord 10. The second drive rolls 24b and 24b 'have a speed control mechanism based on the number of rotations of the first drive rolls 24a and 24a', and apply a predetermined tension to the cord 10 of the first processing unit 2. .

Similarly, the cord 10 has the second processing section 3 between the third drive rolls 24c and 24c 'having a speed control mechanism based on the rotational speed of the second drive rolls 24b and 24b'. , A third processing section 4 between the third drive rolls 24c, 24c 'and a fourth drive roll 24d, 24d' having a speed control mechanism based on the rotation speed thereof, and finally a fourth drive roll.
Fifth driving rolls 24e, 24e 'having driving rolls 24d, 24d' and a speed control mechanism based on the rotation speed thereof.
In the fourth treatment section 5 between, treatment liquids having different formulations (for example, pre-dip liquid, RFL liquid, soaking liquid) and heating and drying conditions (oven temperature, number of code passes),
Processing is performed under cord tension.

In this case, the last fifth drive roll 24e,
Only 24e 'has no dip means. The cord 10 that has passed through all the processing sections is finally sent to the winder 47 through the pull-out roll 52, guided by the winding guide roll 53, and alternately wound around the reels 74a and 74b to be subjected to the dip treatment. The operation is continuously performed. Code 10 on one axis of each drive roll 24 and return rolls 12 and 13
In the zone where the cord reciprocates repeatedly, in order to facilitate the cord threading work, the path is set so that the cord 10 enters from the far side farthest from the cord threading work surface 35 and exits from the front side.

In this embodiment, each drive roll 24a, 24
Although a'to 24d and 24d 'are arranged vertically, they can also be arranged horizontally like 24e and 24e', and a secondary of the same form as the drive roll can be arranged in the same dip zone. A dip roll is separately rotatably installed, and the cord 10 after dipping is once drawn back and forth in the oven 7 for one or two reciprocations, and additionally rediped by a secondary dip and heat-dried in the oven. You can also

[0023]

According to the present invention, a part of the driving roll is also used as a dip roll, so that the number of roll devices in which the cord reciprocates between the two shafts a plurality of times is reduced, and the number of the roll devices is reduced. The code threading work time can be shortened and the operation preparation work time can be streamlined, the device can be downsized, simplified, and the equipment cost can be reduced, and the code separator with multiple pins arranged in a zigzag pattern can be used in parallel. By arranging the rolls between the pair of rolls, the knots between the cords whose cross-sectional area increases rapidly can be smoothly passed, and the cords can be prevented from being cut.

[Brief description of drawings]

FIG. 1 is an overall view of a code dip processing machine according to the present invention.

FIG. 2 is a front view of a drive roll portion.

FIG. 3 is a partially cutaway side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 code dip processing machine 2 1st processing part 3 2nd processing part 4 3rd processing part 5 4th processing part 6 frame 7a oven 10 code 19a 1st drive dipping device 23 dip tank 24a drive roll 55 drive means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Masuda 4-1-21, Hamazoe-dori, Nagata-ku, Kobe Mitsuboshi Belt Co., Ltd.

Claims (2)

[Claims] 1. A cord used for the core of an industrial belt for power transmission is pulled out by a driving dip device, dipped in a treatment liquid contained in a dip tank while applying a constant tension, and then repeatedly reciprocated in an oven. In a cord dip processor in which a heat treatment is carried out while moving and then cooling is performed outside an oven, a pair of drive rolls in which the drive dip device is arranged in parallel and a pair of drive rolls are rotated in a cord dip treatment machine which is wound by a winder. A drive means is provided, and the cord is spirally orbited a plurality of times between the drive rolls, and a part of the drive roll is arranged so as to be immersed in the treatment liquid contained in the dip tank. Code dip processing machine. 2. A plurality of pins are arranged in a staggered manner, and a cord separator for individually passing cords between the pins is arranged between a pair of driving rolls arranged in parallel.
Code dip processing machine described.