KR20190041665A - Apex Extrusion Water cooling system for automotive tires - Google Patents

Abstract

The present invention relates to an apparatus for cooling an apex extrudate of a vehicle tire, capable of minimizing a dimension change of an apex extrudate. The apparatus comprises: an extruder extruding an apex; a transport roller conveyor; a cooling tank storing a coolant; a roller conveyor driving motor installed to rotate and drive a plurality of moving guide rollers; a fixed shaft; a dancer rotation angle sensor; and a dancer operation bar installed to be horizontally rotated.

Description

[0001] Apex Extrusion Water Cooling System for automotive tires [0002]

The present invention relates to an apparatus for cooling an AEPEX extrudate of an automobile tire, and more particularly, to a cooling apparatus capable of minimizing a dimensional change of an AEPEX extrudate by enabling rapid quenching of AEPEX extrudate in a short time .

Generally, Apex extrudate, which is a semi-finished product of automobile tires, is extruded at a high temperature of 80 ° C or higher in an extruder, and the extruded extruded extrudate is manufactured by cooling the extruded extrudate to minimize the change in dimension do.

Conventionally, the Apex extrudate is configured to be cooled by a method of conveying the Apex extrudate extruded by the extruder by using a cooling roller conveyor in which a plurality of cooling rollers circulating the cooling water are rotatably arranged.

However, in order to sufficiently cool the Apex extrudate extruded from the extruder by using the cooling roller conveyor as described above, a large number of cooling rollers are required because the conveyance length of a plurality of cooling rollers installed on the cooling roller conveyor must be sufficiently long, Not only the installation cost of the conveyor is expensive but also a piping facility for circulating the cooling water to each of a large number of cooling rollers installed on the cooling roller conveyer is necessarily required, which increases the volume of the cooling roller conveyor, It is pointed out that the installation cost of the cooling roller conveyor becomes more expensive due to the increase of the size, and the like.

Moreover, since the Apex extrudate extruded from the extruder is cooled only in contact with the rotating cooling rollers, the cooling performance of the Apex extrudate is very low compared to the expensive installation cost, so that the dimensional change of the Apex extrudate extruded from the extruder It can not be minimized.

SUMMARY OF THE INVENTION The present invention has been made in order to solve all the problems of the prior art as described above. When the extruded product of a semi-finished product of a tire is extruded from an extruder, it is conveyed along a conveying roller conveyor provided close to an extrusion nozzle portion of the extruder The extruded extrudate is extruded by the extruder so that the extruded extrudate can be extruded by the extruder. The extruded extrudate extruded from the extruder is cooled by cooling It is an object of the present invention to provide a cooling device for Apex extrudate that minimizes dimensional change.

The present invention, as a means for pursuing the above object,

An extruder for extruding a semi-finished product of a tire;

A conveying roller conveyor having a plurality of moving guide rollers arranged at predetermined intervals in the horizontal direction in front of the extrusion nozzle unit so as to move and guide the extruded extrudate from the extrusion nozzle unit of the extruder in a horizontal direction;

A cooling tank for storing cooling water to cool the AEPEX extrudate discharged through a guide roller rotatably installed at an end of the conveying roller conveyor and a cooling tank installed below the guide roller at a lower height than the guide roller, ;

And a roller conveyor drive unit that is installed on an upper end of one side of the cooling tank so as to be positioned below the guide roller of the conveying roller conveyor and drives the plurality of movement guide rollers installed on the conveying roller conveyor, A motor;

A fixed shaft installed in the upper end of the cooling tank so as to penetrate in a horizontal direction a fixed shaft water portion fixedly installed so as to protrude upward;

A dancer rotation angle detection sensor rotatably installed on the fixed shaft and having a rotation angle sensing part rotatably moving upward and downward along a guide hole of a guide part connected to the fixed shaft;

The dancer rotation angle detecting sensor is provided with a rotation sensor for detecting the rotation angle of the dancer, and a sensor for detecting rotation angle of the dancer, A dancer operation bar installed to rotate left and right like the dancer rotation angle detection sensor;

Is formed.

A roller drive motor fixedly installed at the other upper end of the cooling tank; and a pulling rotation roller provided to rotate in a direction of pulling the AEPEX extrudate toward the extruding direction of the extruder, And a second electrode.

The other side of the cooling tank is provided with a pair of a pair of opposed extruded products drawn out from the cooling water by the pulling rotating rollers and being discharged out of the cooling tank so as to face downward Upper and lower loop sensors.

Further, the roller driving motor is configured to control the rotational speed of the pulling rotary roller.

In addition, the rotating body is formed in a jar shape in cross section so that the AEPEX extrudate can be extruded straightly at the lower end of the dancer operation bar, and both side guide vanes for guiding both widthwise ends of the AEPEX extrudate are formed at both ends of the rotary body And the dancer roller is rotatably installed.

According to the present invention, the Apex extrudate is extruded from the extrusion nozzle portion of the extruder at a high temperature (about 80 ° C) in an extruder for extruding Apex, which is a semi-finished product of a tire, It is possible to precipitate the cooling water stored in the cooling tank immediately after being discharged and quench the cooling water, thereby minimizing a change in the dimension of the AEPEX extrudate.

Also, as the AEPEX extrudate deposited in the cooling water stored in the cooling tank moves the dancer operation bar in the direction of movement of the AEPEX extrudate, the dancer rotation angle detection sensor senses the rotational movement angle of the dancer operation bar, The speed at which the extruded extrudate is extruded from the extruder can be controlled to be constantly set by the cooling water stored in the cooling tank, so that the quality of the extruded extrudate can be kept constant .

Further, the present invention is characterized in that, in the state before the Apex extrudate that is extruded from the extruder and discharged from the cooling water stored in the cooling tank is conveyed by the conveying belt conveyor, The upper and lower loop sensors (not shown) for detecting the extinction state of the extruder and detecting the excess state of the extrudate to the bottom or the extrusion operation of the extruder by sensing that the extrusion is excessively moved toward the pulling rotary roller and the conveying belt conveyor, The apte extruded material drawn out from the cooling tank by the rotation driving of the pulling rotary roller is delivered down safely through the conveying belt conveyor while being downwardly pulled down to a predetermined position only by its own weight .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall schematic diagram of an Apex extrudate cooling apparatus for explaining the present invention. Fig.
Fig. 2 is a cross-sectional view of the dancer roller provided at the lower end of the dancer operation bar of the present invention
Figures 3 and 4 are cross-sectional views of the operating state of the Apex extrudate cooling device of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a cooling apparatus for an apte extrudate of an automobile tire according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a cooling device for the Apex extrudate. The Apex extruder cooling device 1 includes a cooling device 1 for cooling the AEPEX extrudate 100, As shown in Fig.

The AEPEX extrudate cooling device 1 is a device for cooling the AEPEX extrudate 100 so that the AEPEX extrudate 100 discharged through the guide roller 32 of the conveying roller conveyor 3 is precipitated in the cooling water, A roller conveyor (3) for rotating the plurality of moving guide rollers (31) formed on the conveying roller conveyor (3) to move the apted extrudate, A dancer rotation angle detecting sensor 6 for controlling the moving speed of the Apex extrudate, a dancer operation bar 7, a roller driving motor 8, an upper and lower loop sensors 9a- 1, 9a-2, 9b-1, 9b-2).

The cooling tank 4 is provided in front of the extrusion nozzle unit 21 of the extruder 2 with a plurality of moving guide rollers 31 rotatably mounted on the conveying roller conveyor 3 The guide roller 32 is rotatably installed at the lower end of the guide roller 32. [

Also, the cooling tank 4 is provided with a cooling water circulation supply system for storing cooling water cooled to 5 to 8 캜 (not shown).

The roller conveyor drive motor 5 is fixed to the upper end of one side of the cooling tank 4 (see the left part in the figure) and is provided on the conveying roller conveyor 3 with a plurality of moving guide rollers 31 As shown in FIG.

The dancer rotation angle detecting sensor 6 is rotatable in a state of enclosing a fixed shaft 62 which is installed to penetrate the upper end of a fixed shaft receiving portion 61 fixedly installed at one upper end of the cooling tank 4 Respectively.

The dancer operation bar 7 is formed so as to be deposited at a predetermined depth into the cooling water stored in the cooling tank 4 in a state where the upper end 71 is connected to the sensor 6 for detecting the rotation angle of the dancer, The cooling water stored in the cooling tank 4 can be rotated at a predetermined angle in the left and right direction in the drawing according to the discharge conveying speed of the AEPEX extrudate 100 discharged from the AEP.

The lower end 72 of the dancer operation bar 7 is provided with a rotary body 73 having a cross section formed in a jar shape so as to guide the discharge conveying operation of the Apex extrudate 100 straightly, And a dancer roller 7a having both guide vanes 74 for guiding the discharge conveying operation of the apte extrudate while supporting both ends in the width direction of the apte extrudate 100 is rotatably mounted .

The roller driving motor 8 includes a pulling rotary roller 82 rotatably mounted on a support 81 projecting upward while being fixed on the upper end of the other side of the cooling tank 4 And is configured to rotate.

The upper and lower loop sensors 9a-1, 9a-2, 9b-1, 9b-2 are each constituted by a pair and are provided on the outside of the cooling tank 4 (S) at a predetermined height, and are disposed to face each other at different elevation angles.

The upper and lower loop sensors 9a-1, 9a-2, 9b-1, 9b-2 are rotated by the rotation of the pulling rotary roller 82 into the cooling water stored in the cooling tank 4 As the precipitated AEPEX extrudate 100 is withdrawn from the cooling tank 4 in the upward direction of the cooling tank 4, the AEPEX extrudate 100 is released from the pulling rotary roller 82 toward the rotating direction of the pulling rotary roller 82, It is possible to prevent the phenomenon that the Apex extrudate is excessively lowered to a height lower than the height set to the lower side (the installation position of the lower loop sensor), or conversely, when the Apex extrudate is set to the lower side To control the extrusion operation of the extruder 2 in order to prevent the phenomenon of stretching without reaching the installation position of the loop sensor.

Each of the upper and lower loop sensors 9a-1, 9a-2, 9b-1, 9b-2 is installed in a state of facing each other and is constituted by a sensor for detecting light emitted therebetween, .

On the other hand, on the other side of the cooling tank 4 (see the right side in the figure), the cooling water is cooled by the cooling water stored in the cooling tank 4, There is provided a conveying belt conveyor 200 for conveying the AEPEX extrudate 100 conveyed in a state of being pulled upward and downward to a height set by its own weight to a storage place not shown in the figure.

A guide protrusion 63 is protruded to one side of the fixed shaft receiving portion 61 and a guide hole 64 is formed in the guide protrusion 63 in an arc shape.

The dancer rotation angle detecting sensor 6 includes a rotation angle detecting unit 65 protruding from one side of the dancer rotation angle detecting sensor 6 and a guide protrusion 63 formed on the guide protrusion 63 when the dancer operation unit 7 is rotated left and right. The rotation speed of the roller driving motor 8 can be controlled quickly or slowly by sensing the rotation angle of the rotation of the roller driving motor 8 along the rotation axis 64.

The operation of quenching the AEPEX extrudate 100 in the Apex extrudate cooling apparatus 1 of the present invention having the above-described structure will now be described.

The Apex extrudate cooling device 1 is provided with a plurality of Apex extruded products 100 which are extruded from an extrusion nozzle part 21 of an extruder 2, And is moved toward the guide roller 32 by the rotational operation of the rollers 31 to be discharged.

The apte extrudate 100 discharged from the extruder 2 and discharged toward the guide roller 32 is discharged into the cooling water stored in the cooling water tank 4 due to its own weight (See the right side of the drawing) of the cooling tank 4 via the rotating body 73 of the dancer roller 7a which is settled and rotatably installed at the lower end 72 of the dancer operation bar 7 And moves toward the pulling rotary roller 82 for pulling the AEPEX extrudate 100 in an operation of rotating operation by a supporting stand 81 protruding upward.

The apte extrudate 100 moved by the rotation of the pulling rotary roller 82 is formed in the shape of a jar of the dancer roller 7a provided at the lower end 72 of the dancer operation bar 7 The rotating body 73 rotates while being guided in a state in which the both side guide vanes 74 support both ends in the width direction of the AEPEX extrudate 100 while the AEPEX inlet / outlet 100 is bent in the width direction, The water 100 can be moved straight along the dancer roller 7a (see the imaginary line portion in Fig. 2).

As described above, the AEPEX extrudate 100 settled in the cooling water stored in the cooling tank 4 is quenched while being cooled by the cooling water cooled to 5 to 8 DEG C and moving toward the pulling rotary roller 82 So that even when the AEPEX extrudate 100 is taken out from the cooling tank 4, the state in which the dimensional change is minimized can be maintained.

The aptive extrudate 100 drawn out from the cooling tank 4 by the rotation operation of the pulling rotary roller 82 is pulled downward by its own weight when it is pulled out of the pulling rotary roller 82, (Not shown) through the belt conveyor 200. [0033]

When the apte extrudate 100 drawn out upward of the cooling tank 4 by the rotation operation of the pulling rotary roller 82 is lifted off the pulling rotary roller 82 and is pulled down by its own weight, Since the extrudate 100 is configured to be in a state of being stretched only between the upper and lower loop sensors 9a-1, 9a-2, 9b-1, 9b-2 like the solid line portion in FIG. 4, The AEPEX extruded product 100 which is pulled out from the cooling tank 4 by the rotation of the rotary roller 82 and dropped down by its own weight is fed to the upper and lower loop sensors 9a-1, 9a-2, 9b-1 And 9b-2, and then is transported upward to be transported to the storage place by the conveying belt conveyor 200. In this case,

Each of the upper and lower loop sensors 9a-1, 9a-2 and 9b-1 and 9b-2 is rotatably driven by a rotating operation of a pulling rotary roller 82, The extruding operation of the extruder 2 can be controlled by sensing the AEPEX extrudate 100 which is drawn down by its own weight so that the extruding operation of the extruder 2 can be controlled by the rotating operation of the pulling rotary roller 82, The Apex extrudate 100 is conveyed by the conveyor belt conveyor 200 after it has been laid down to a predetermined height when the Apex extrudate 100 is pulled down by its own weight, The extrusion operation of the extruder 2 is stopped when the AEPEX extrudate 100 is not fed as specified.

For example, each of the upper and lower loop sensors 9a-1, 9a-2, 9b-1, 9b-2 is composed of an infrared sensor or the like, When it is positioned between the lower loop sensors 9a-1 and 9a-2 (9b-1 and 9b-2), the upper and lower loop sensors are each in a state in which infrared light is blocked, When the extrudate 100 is conveyed to the conveying belt conveyor 200 at a position higher than the upper loop sensors 9a-1 and 9a-2, the upper and lower loop sensors facing each other emit infrared rays of each other The extrusion operation of the extruder 2 is immediately stopped when the upper and lower loop sensors are blocked by the Apex extrudate 100 for 3 to 5 seconds as described above.

Also, contrary to the above, even when the state in which the upper and lower loop sensors (a-1, 9a-2) 9b-1, 9b-2 face each other for 3 to 5 seconds, the extruding operation of the extruder 2 And is immediately stopped.

Further, the upper loop sensors 9a-1 and 9a-2 are in a state where the apte extruded product 100 is located therebetween to block infrared light (see the solid line portion in Fig. 3) 1, 9b-2), the extruder 2 is configured to normally perform the extrusion operation when the extruded extrudate 100 is in an off-state (a state capable of detecting light from each other).

However, unlike the above, when the AEPEX extrudate 100 is separated from the upper loop sensors 9a-1 and 9a-2 for 3 to 5 seconds and the upper loop sensors 9a-1 and 9a- (See the imaginary line portion in Fig. 3), or the state in which the AEPEX extrudate 100 is lower than the lower loop sensors 9ab-1, 9b-2, , The lower loop sensors 9a-1, 9a-2 (9b-1, 9b-2) are shut off, the extruding operation of the extruder 2 is immediately stopped. In this case, So that the device 1 can be repaired after it has been repaired.

On the other hand, the dancer operation bar 7, which has been settled at a predetermined depth in the cooling water stored in the cooling tank 4, has a dancer roller 7a rotatably installed at the lower end 72 thereof, The extensible extrudate 100 can be transported in a taut and taut state while being rotated to the left and right in the drawing centering on the fixed shaft 62 in accordance with the feeding speed of the extrudate 100. For example, when the conveying speed of the apte extrudate 100 discharged from the guide roller 22 and conveyed to the pulling rotary roller 82 side is fast, the dancer operation bar 7 is moved in the direction of arrow The dancer operation bar 7 is rotated in the direction of the arrow in FIG. 3 (left direction in the figure) when the feeding speed of the Apex extrudate 100 is slow, It is in a moving state.

Accordingly, the Apex extrudate cooling device 1 of the present invention is to be quenched by the operation of causing the Apex extrudate 100 to be extruded from the extruder 2 to settle in the cooling water stored in the cooling tank 4, The upper and lower loop sensors 9a-1, 2a-2 (which are set in advance when the apte extrudate 100 which is quenched by the effect of precipitation cooling on the cooling water falls downward due to its own weight after leaving the pulling rotary roller 82) (9b-1, 9b-2), and then moves upward toward the conveying belt conveyor 200 immediately after being laid down to the position of the installation space S, (Not shown). Thus, the apte extrudate 100 conveyed by the conveyor belt conveyor 200 can be conveyed in a state in which the dimensional change is minimized.

1: Apex extrudate cooling device 2: Extruder
21: extrusion nozzle part 3: conveying roller conveyor
31: moving guide roller 32: guide roller
4: Cooling tank 5: Roller conveyor drive motor
6: Dancer rotation angle detection sensor 61: Fixed axis part
62: fixed shaft 63: guide protrusion
64: guide guide ball 65: rotation angle sensing unit
7: Dancer operation bar 7a: Dancer roller
71: upper 72: bottom
73: rotating body 74: guide wing
75: Bearing 8: Roller drive motor
81: Support member 82: Pulling rotary roller
9a-1, 9a-2: upper loop sensors 9b-1, 9b-2:
S: Installation interval

Claims (5)

An extruder for extruding a semi-finished product of a tire;
A conveying roller conveyor having a plurality of moving guide rollers arranged at predetermined intervals in the horizontal direction in front of the extrusion nozzle unit so as to move and guide the extruded extrudate from the extrusion nozzle unit of the extruder in a horizontal direction;
A cooling tank for storing cooling water to cool the AEPEX extrudate discharged through a guide roller rotatably installed at an end of the conveying roller conveyor and a cooling tank installed below the guide roller at a lower height than the guide roller, ;
And a roller conveyor drive unit that is installed on an upper end of one side of the cooling tank so as to be positioned below the guide roller of the conveying roller conveyor and drives the plurality of movement guide rollers installed on the conveying roller conveyor, A motor;
A fixed shaft installed in the upper end of the cooling tank so as to penetrate in a horizontal direction a fixed shaft water portion fixedly installed so as to protrude upward;
A dancer rotation angle detection sensor rotatably installed on the fixed shaft and having a rotation angle sensing part rotatably moving upward and downward along a guide hole of a guide part connected to the fixed shaft;
The dancer rotation angle detecting sensor is provided with a rotation sensor for detecting the rotation angle of the dancer, and a sensor for detecting rotation angle of the dancer, A dancer operation bar installed to rotate left and right like the dancer rotation angle detection sensor;
And a cooling device for cooling the extruded product of the automobile tire. The method according to claim 1,
A roller driving motor fixedly installed at the other upper end of the cooling tank and a pulling rotating roller provided to rotate in a direction of pulling the AEPEX extrudate toward the extruding direction of the extruder by receiving rotational power from the roller driving motor And a cooling device for cooling the extruded product of the automobile tire. 3. The method according to claim 1 or 2,
The other side of the cooling tank is provided with a pair of aphase extruded products drawn out from the cooling water by the pulling rotating rollers and being discharged out of the cooling tank, And a lower loop sensor. ≪ Desc / Clms Page number 20 > 3. The method of claim 2,
Wherein the roller driving motor is configured to control the rotational speed of the pulling rotating roller. The method according to claim 1,
The dancer operation bar has a rotary body formed in a jar shape so that the AEXEX extrudate can be straightly extruded at the lower end of the dancer operation bar and a dancer having both side guide blades guiding both ends in the width direction of the AEXEX extrudate, Wherein the roller is rotatably mounted on the tire.

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