KR20030022435A - Automatic Transferring Device for Tire Tread - Google Patents

Abstract

PURPOSE: Provided is an automated transfer system for half-finished treads which automatically supplies half-finished treads extruded from an extruding machine for a molding machine so that it contributes to raise product quality. CONSTITUTION: The automated transfer system for the half-finished treads comprises the parts of: a take-away conveyer(20) which receives the half-finished treads; a shrinkage(30) which shrinks the half-finished treads and adjusts the width of the half-finished treads; a transfer speed adjuster(40); a cooling table(50) which cools the surface of the half-finished treads passed through the adjuster for transfer speed; a drier(60) which dries the surface of the half-finished treads; a festoon(70) which is connected to the drier with including an ultrasonic sensor(73); a cutter(80) which cuts the half-finished treads in a certain size; and a collection part(90) which loads the cut half-finished treads.

Description

Automatic Transferring Device for Tire Tread

The present invention relates to a tread semi-finished automatic feeder capable of automatically supplying a tread semi-finished product extruded from an extruder to a molding machine.

Conventionally, the tread semi-finished product extruded from the extruder was cut and loaded into a loading apparatus manually or automatically, and then fed to a molding machine using a conveying apparatus. As such, the conventional method has caused a deterioration in the quality of cutting the tread semi-finished product, and also has a problem in that work efficiency decreases by loading the tread semi-finished product into a loading apparatus and supplying it to a molding machine using a conveying apparatus.

An object of the present invention is to provide a tread semi-finished product automatic transfer device that can be expected to improve the quality by automatically supplying the tread semi-finished product extruded from the extruder directly connected to the molding machine, and improve the workability.

1 is an overall configuration diagram of a semi-tread automatic feed device according to the present invention,

Figure 2 is a partial detailed view of the feed rate adjuster according to the present invention, Figure 2a is a front view thereof, Figure 2b is a partial side view,

3 is a side view showing a cutter according to the present invention;

Figure 4 is a side view showing the mounting portion according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: extruder, 20: extractor,

30: width adjuster, 40: feed rate adjuster,

50: cooling stand, 60: dryer,

70: shock absorber, 80: cutter,

90: loading part, 100: automatic feeder.

In order to achieve the above technical problem, an automatic tread semi-finished product feeder of the present invention is provided with an extractor receiving a tread semi-finished product extruded from an extruder, and positioned in succession with the extractor to adjust the width of the semi-finished product by advancing the tread semi-finished product. A feed rate adjuster having a width adjuster, a dancer for adjusting the feed rate of the tread semifinished product, a cooling stand for cooling the surface of the tread semifinished product passing through the feed rate adjuster, and a position adjacent to the cooling stand. A dryer for drying the surface of the tread semi-finished product, a buffer connected to the dryer and equipped with an ultrasonic sensor, a cutter continuously positioned in the buffer to cut the semi-finished product to a predetermined size, and cut by the cutter. Characterized in that it comprises a loading unit for loading the semi-finished product.

Hereinafter, with reference to the accompanying drawings in accordance with the present invention will be described in detail an embodiment of the present invention.

The tread semi-finished product automatic conveying apparatus 100 of the present invention, the tread semi-finished product is largely extruded from the extruder 10, as shown in FIG. Width adjuster 30 for adjusting the width of the semi-finished product by advancing the shrinkage of the semi-finished product (S), the feed rate controller 40 for adjusting the feed rate of the tread semi-finished product, and the tread semi-finished product passed through the feed rate controller 40 Cooling stand 50 for cooling the surface of the dryer, the dryer 60 is positioned in succession to the cooling stand 50 to dry the surface of the tread semi-finished product, and connected to the dryer 60, the ultrasonic sensor 73 is It includes a buffer 70 provided, a cutter 80 that is positioned in succession to the buffer to cut the semi-finished product to a predetermined size, and a loading unit 90 for loading the semi-finished product cut by the cutter 80 do.

The extractor 20 is a structure that receives a tread semi-finished product extruded from the extruder 10, and may be, for example, an take-away conveyor composed of rollers. Extractor 20 composed of such an extraction conveyor is attached to the cylinder 21 to rotate the conveyor at a certain angle to accommodate the semi-finished product extruded conveyor.

The width adjuster 30 may be a conveyor having a plurality of rollers driven by the driving motor 31. The width adjuster 30 is configured to gradually decrease as the roller width of the conveyor moves away from the extruder 10 to reduce the width of the semifinished product. Therefore, the width of the tread semifinished product passing through the extractor 20 is transferred to the next process so as to shrink. The width adjuster 30 functions to shrink so as to minimize and stabilize deformation of the semi-finished tread that has passed through the extractor 20. The contracted tread semi-finished product is programmed with an automatic control system so that the extrudate can be produced with the correct width by measuring the exact width through the width measuring camera 33 and then changing the speed of the extruder according to the measurement result data. In this way, the semi-finished product of the width measurement is transferred to the feed rate controller 40 for measuring the weight.

The feed speed controller 40 is preferably composed of a conveyor having a plurality of rollers. The conveyor is operated by a drive motor 41, the lower middle portion is provided with a weighing unit 43 for measuring the weight, and here again by varying the speed of the extruder 10 in accordance with the weighing result data of the semi-finished product An automatic control system is built to ensure that the original can be extruded. In addition, the dancer 42 is located at the rear end side of the feed speed controller 40 in the automatic feeder 100 according to the present invention, the drive motor rotation speed to maintain a constant speed with the cooling table 50 to be transported semi-finished products Automatic control.

The dancer 42 will be described in more detail to keep the speed of the moving speed controller 40 constant so as to smoothly transport the semi-finished products, the technical configuration of which is shown in FIG. 42a, dancer arms 42b supporting both ends of the dancer roll 42a, a shaft 42c connecting the dancer arms 42b to each other and supported by the frame 44, and the shaft A balance weight 42d attached to one end portion, a cam 42e fixed to one end portion of the shaft 42c, and a bracket 45 supported on the shaft 42c. It comprises a sensor (42f) fixed to the and measuring the rotation of the cam 42e, and the cylinder 43 fixed to the bracket 45 and connected to the shaft 42c.

As shown in FIG. 2B, when the speed of the cooling stand 50 is too fast, the dancer roll 42a is constructed as described above, and the dancer roll 42a is lifted up by the semi-finished product S. 42a) is struck down. That is, the dancer roll 42a is a kind of free end, which is a structural part moving up and down according to the speed of the semi-finished product. When the dancer roll 42a is raised or struck down, the cam 42e attached to the shaft together with the shaft 42c also rotates at the same angle. At this time, when the sensor 42f measures the rotation angle of the cam 42e and sends the measured data to the motor 41 of the feed speed regulator 40, the motor adjusts the rotation speed according to this data. Done. The weight 42d serves to balance the weight according to the inclination of the dancer roll 42a by being installed at positions opposite to the dancer roll 42a. The cylinder 43 does not perform a separate function when the semi-finished product is transported, but operates only when the reference position of the first dancer roll 42a is held at the start of work. The tread semi-finished product passed through the feed rate controller 40 is transferred to a subsequent cooling stand 50.

The cooling table 50 may be preferably configured as a cooling conveyor to cool the tread semifinished product with cooling water. In the case of the cooling conveyor, the cooling conveyors 50a and 50b are preferably provided in two stages in consideration of the installation space of the transfer apparatus. The tread semi-finished product S passing through the dancer 52 of the feed rate adjuster 40 is transferred onto a mesh belt 53 on the cooling conveyor 50a at the lower end of the two-stage cooling conveyor, while being sprayed with a spray nozzle. The coolant sprayed at 54) cools the tread semi-finished product. The lower cooling conveyor 50a is provided with another dancer 52 as in the feed rate regulator 40, and the semifinished product is passed through the dancer 52 to the upper cooling conveyor 50b located at the top. In addition, the lower cooling conveyor 50a also measures the change in the angle of the dancer 52 with a sensor as in the feed speed regulator 40 to measure the speed of the lower cooling conveyor 50a and the speed of the upper cooling conveyor 50b. It is to automatically control the speed of the drive motor 51 to keep it. The tread semifinished product passing through the lower cooling conveyor 50a is transferred to the upper cooling conveyor 50b.

The upper cooling conveyor 50b, like the lower cooling conveyor 50a, transfers the tread semi-finished product to the mesh belt 56 and cools the tread semi-finished product with the cooling water sprayed through the injection nozzle 55. The tread semi-finished product passing through the upper cooling conveyor 50b is transferred to the dryer 60.

On the other hand, as can be seen in Figure 1, between the feed rate controller 40 and the lower cooling conveyor (50a) and the lower cooling conveyor (50a) and the upper cooling conveyor (50b), respectively, the semi-finished product is bent upwards, In this part, the operator can lead to the cooling roll guide rolls through the dancers in the early stages and continue to produce them.

The dryer 60 is installed at the rear end of the upper cooling stand 50, and removes moisture from the tread semi-finished product through the blower nozzle 64 installed above and below the roller. Dryer 60 and cooling stand 50 are driven by dryer / cooling stand drive motor 61. The tread semi-finished product passing through the dryer 60 is transferred to the buffer 70 again.

The shock absorber 70 is composed of a plurality of rollers 72a and 72b. Each roller 72a, 72b is driven by a drive motor 71a, 71b, respectively. The speed of the roller changes the roller speed by detecting the loop amount of the semi-finished tread by the ultrasonic sensor 73 installed between the rollers. In other words, when the loop amount of the tread semi-finished product detected by the ultrasonic sensor 73 is increased, it is automatically controlled and produced so that the speed to the cooling stand is reduced in the extruder 10 and all the line equipment, while the ultrasonic sensor 73 is detected. If the tread semifinished product has a low loop volume, it will be automatically controlled to speed up the extruder and all the line equipment. The tread semifinished product passed through the buffer is transferred to the next process.

The speeds of all lines, including the buffer 70, are driven in correlation with each other. The program is configured so that the speed of the semi-finished product extruded from the extruder 10 can be changed flexibly according to the production speed of the molding machine.

That is, the faster the speed of using the tread semi-finished product in the molding machine, the faster the tread extrusion line speed. In contrast, the slower the speed of using the tread semi-finished product in the molding machine, the lower the tread extrusion line speed. When the speed of the extrusion line is changed, the extruder speed (screw rotation speed) and the speed of each conveyor are changed so that the quality of the semi-finished product is not affected. The speed change of the upper and lower cooling conveyors 50a and 50b is a dancer (52). ) Changes the speed of the cooling stand by measuring the distance detected by the sensor according to the change of the rotation angle of the cam attached to the roller shaft. The tread semi-finished product passed through the cooling table 50 to the shock absorber 70 at the changed speed changes the speed according to the loop amount detected by the ultrasonic sensor 73 installed between the rollers of the shock absorber.

At the rear end of the shock absorber 70, a cutter 80 for cutting the tread semi-finished product to a predetermined length and a loading unit 90 for loading the tread semi-finished product cut by the cutter 80 are successively formed.

As shown in FIG. 3, the cutter 80 has a guide conveyor 82 installed in one direction on the frame and driven by the driving motor 81, and a frame at the end of the guide conveyor 82. The ultrasonic cutter 84 supported by the feeder and moved left and right by the feed motor 83, a pedestal 85 installed up and down at the lower end of the guide conveyor 82, and the guide conveyor 82. It consists of a press roll 86 installed at an upper end of the end portion, that is, opposed to the pedestal 85, and a sensor 87 installed at the guide conveyor 82 and sensing the transfer of the tread semi-finished product. The cutter 80 configured as described above receives the tread semi-finished product passing through the shock absorber 70, and the guide conveyor 82 receives and transports the tread semi-finished product. Here, after detecting the front end of the tread semi-finished product conveyed by the sensor 87 installed in the guide conveyor 82, by rotating the guide conveyor 82 by the drive motor 81 transfers the tread semi-finished product by the length to be cut. . To prevent shaking of the conveyed tread semifinished product, a pedestal 85 installed below the guide conveyor 82 is moved upward by a cylinder, and a press roll 86 installed above the guide conveyor 82 is moved downward by a cylinder. Moved to press the tread semifinished product. The tread semifinished product is then cut when the ultrasonic cutter 84 is moved from left to right by the feed motor 83.

The tread semi-finished product cut in this way may be immediately transferred to the molding machine, but when it is unable to operate due to a malfunction of the molding machine, it is necessary to load the semi-tread product at a predetermined position, as shown in FIG. The unit 90 is provided.

As shown in FIG. 4, the structure of the stacking unit 90 is supported by a frame and receives an inlet conveyor 92a for introducing a semi-finished product, and an outlet conveyor 92b installed under the inlet conveyor and transferring the semi-finished product to a molding machine. A driving motor 91 for driving the drawing conveyors, a loading table 93 positioned above the drawing conveyor, supported by a frame, and arranged in a plurality of loading plates; and an opposite position of the loading table 93. A vertical support 94 having a pulley 95 installed at an upper end thereof and having a vertical guide rod 96 at one side thereof, connected to the pulley 95 of the vertical support, and connected to a servo motor 91a. A chain 97 that is lifted and lowered by a pair, a pair of horizontal guide rods 98a and 98b slidably coupled to the vertical guide rod 96 and fixed to an end of the chain, and the pair of horizontal guide (98a) is configured to be coupled to (98b) includes a pair of lift forks (99a) (99b) for horizontal movement by a cylinder. The loading portion 90 is used to move the pair of lift forks 99a and 99b vertically and horizontally to place or lower the tread semi-finished product on the mounting table 93. When the pair of lift forks 99a and 99b are moved up and down, the servo motor 91a is driven to move. When the servo motor 91a is driven, the chain 97 rotates and the pair of lift forks 99a and 99b connected to the chain move up and down as the chain rotates. When the pair of lift forks 99a and 99b are moved in the horizontal direction, they are moved in the horizontal direction by a cylinder attached to each of the pair of lift forks. When the brackets supporting the pair of lift forks 99a and 99b are integrally formed and slidably coupled to the vertical guide rod 96 to move up and down, the pair of lift forks 99a and 99b move simultaneously. Only when moving horizontally, each cylinder moves individually.

An example of loading or unloading a semi-finished product cut by the loading unit 90 into a loading table will be described below.

The cut tread semi-finished product is introduced into the inlet conveyor 92a, and then the air cylinder of the lift fork 99b is advanced so that the lifter fork enters between the inlet conveyor rollers. After the ascension, the tread semi-finished product is cut out from the inlet conveyor 92a while the air cylinder moves backward.

Thus, the tread semi-finished product moved from the incoming conveyor 92a to the lift fork 99b at the bottom of the pair of lift forks 99 to load the tread semi-finished product cut by the drive of the lift fork vertically transported servo motor 91a. After moving to the loading table 93 position, the lift fork 99a installed at the top of the pair of lift forks 99 enters between the loading tables 93 in which the semi-finished products are already loaded by the cylinder, and again the servo motor ( The semi-finished product is lifted from the mounting table 93 while the lift fork 99a is lifted by 91a), and then, when the lift fork 99a which has been advanced is reversed, the tread semi-finished product is removed from the mounting table 93. In this way, the lift fork 99a advances the lift fork 99b to the empty mounting table 93 from which the tread semi-finished product is removed, and then the semi-finished product is loaded on the mounting table 93 while lowering again by the drive of the servo motor 91a and the cylinder. The lift fork 99b is retracted while reversing. The tread semi-finished product placed on the lift fork 99a moves to the takeout conveyor 92b position for supplying the tread semi-finished product to the molding machine by driving the servo motor 91a, and then the cylinder is advanced to the lift fork 99a. After the lift fork 99a enters between the rollers of the takeout conveyor 92b, the tread semi-finished product is placed on the takeout conveyor 92b while descending by the servo motor 91a, and then the lift fork 99a while the cylinder moves backward. ) Is moved out of the takeout conveyor 92b to move the tread semi-finished product cut by the servo motor drive to the loading stand 93 again. While repeating the above operation, the tread semi-finished product is automatically supplied to the molding machine.

As described above, the present invention has an effect of increasing productivity while automatically expecting a quality improvement by automatically supplying a tread semi-finished product extruded from an extruder to a molding machine.

In addition, the present invention has the effect that it is possible to adjust the feed rate of the tread semi-finished product by providing a dancer to the feed rate controller.

In addition, the present invention has the effect of cutting the tread semi-finished product to a certain length by adding a cutter to the rear end of the shock absorber.

In addition, the present invention can temporarily load the cut tread semi-finished product by adding a loading portion to the rear end of the cutter has the effect that can be continuously operated even in the case of a failure of the molding machine and the like.

Claims (5)

Extractor 20 receiving the tread semi-finished product, the width adjuster 30 for adjusting the width of the semi-finished product by advancing the tread semi-finished product (S) is placed in succession to the extractor 20, and the feed rate of the tread semi-finished product A feed rate adjuster 40 having an adjustable dancer 42, a cooling stand 50 for cooling the surface of the tread semi-finished product passing through the feed rate adjuster 40, and the cooling stand 50 and A dryer 60 positioned in succession to dry the surface of the tread semi-finished product, a buffer 70 connected to the dryer 60 and equipped with an ultrasonic sensor 73, and continuously positioned in the buffer so that the semi-finished product has a predetermined size Tread semi-finished automatic transfer device is configured to include a cutting machine for cutting (80), and a loading unit (90) for loading the semi-finished product cut by the cutter. The method of claim 1, The dancer 40 is connected to the dancer roll 42a, dancer arms 42b supporting both ends of the dancer roll 42a, and the dancer arms 42b, and supported by the frame 44. The shaft 42c, the weight 42d attached to one end of the shaft 42c, the cam 42e fixed to one end of the shaft 42c, and the shaft 42c are supported. A sensor 42f fixed to the bracket 45 and measuring the rotation of the cam 42e, and a cylinder 43 fixed to the bracket 45 and connected to the shaft 42c. Tread semi finished automatic feeder. The method of claim 1, The cooling table 50 is a tread semi-automatic conveying device, characterized in that it comprises a lower cooling conveyor (50a) and the upper cooling conveyor (50b) formed on the upper portion. The method according to any one of claims 1 to 3, The cutter 80 is installed on the frame in one direction and driven by a driving motor 81, and is supported by the frame at the end of the guide conveyor 82 and is supported by the transfer motor 83. Ultrasonic cutter 84 moving left and right by the movement, a pedestal 85 which is installed at a lower portion of the end of the guide conveyor 82 and is operated up and down, and a press roll 86 which is installed at a position opposite to the pedestal 85. And a sensor (87) installed on the guide conveyor (82) to detect the transfer of the tread semi-finished product. The method according to any one of claims 1 to 3, The loading unit 90 includes an inlet conveyor 92a supported by a frame, an outlet conveyor 92b installed below the inlet conveyor, a drive motor 91 for driving the inlet and outlet conveyors, and the inlet conveyor. Located on the conveyor and supported by the frame and arranged in a plurality of mounting plates, and installed in the opposite position of the mounting table 93, the upper end is provided with a pulley (95) and at one side A vertical support 94 having a vertical guide rod 96, a chain 97 connected to the pulley 95 of the vertical support and being lifted and lowered by a servo motor 91a, and the vertical guide rod ( A pair of horizontal guide rods 98a and 98b slidably coupled to 96 and fixed to the end of the chain, and coupled to the pair of horizontal guide rods 98a and 98b and horizontally moved by a cylinder. Pair of lift forks (99a) Tread semi-finished automatic transfer device characterized in that it comprises a 99b).