KR19990065102A - Tread semi-automatic feeder and its supply method - Google Patents

Abstract

The present invention relates to a tread semi-finished product automatic supply device, comprising: a reel cartridge (1) driven by a motor; A transfer conveyor 3 for transferring the tread released from the reel cartridge; A feed roller 52 for feeding the tread toward the transfer conveyor; A timing belt for transmitting a driving force of the motor between the output shaft of the motor 5 and the timing pulley 6 located at the front end of the transfer conveyor; An applicator (51) installed between the conveying conveyor and the forming drum to convey the tread to the forming drum (17); An encoder 7 installed on the conveying conveyor for measuring the length of the conveying tread; Anvil 13 is fixed to the support rollers 11, 12 operated by the pneumatic cylinders 8, 9, 10 and the box 23 which can be moved at a predetermined angle with respect to the semi-tread of the tread, to the rear end of the applicator 51. An ultrasonic cutter 14 installed; An applicator frame (34) for supporting said applicator (51); An LM rail (19) for guiding the frame to the front of the forming drum (17) by a ball screw (18); A centering guide roller 16 and a rotating roller 27 which are positioned in two rows on the left and right sides of the applicator 51 so as to be supplied with a tread according to the center of the forming drum and meshed with the bevel gear 28; It is characterized by consisting of a profile roller 21 and a brush roller 22 for pressing the tread by the pneumatic cylinder (20).

Description

Tread semi-automatic feeder and its supply method

The present invention relates to an automatic tread semifinished product supplying device for supplying and bonding a semi-tread to a tire forming drum and a supply method thereof.

In order to mold a tire, conventionally, a booker loaded with a semi-treaded product is transported to a place where a tire forming drum is provided by a transport mechanism such as a tow truck, and then a worker unloads it and winds up and joints the molding drum by hand. This work method has a problem in that the quality of the finished tire is fluctuated according to the skill of the worker because the working method of the worker is severe and is made by hand.

In other cases, the tread semi-finished product is wound on a reel cartridge having a predetermined diameter, mounted on the molding machine service, the tread semi-finished product is sent out at a constant speed, and cut by an automatic cutting device. Thereafter, the cut tread semi-finished product is transferred to a forming drum by a conventional conveyor device and placed on the forming drum by hand, and the belt assembled as described above is integrally assembled by rotating the forming drum in the above state. There was a method of making, but this method of work is difficult to match the semi-tread of the tread correctly to the tire forming drum, there is a problem that the width deviation, step error, unbalance occurs on the left and right sides of the forming drum, as well as the length of the tread Run-out in the circumferential direction of tires and uniformity of tires The amount has become a problem.

The present invention has been made in order to improve the above problems, to improve the quality of the finished tire by automating the supply, winding and joining of the semi-finished tread cut to a predetermined length, and prevents accidents of workers in advance It is an object of the present invention to provide a method for automatically supplying a semi-tread of semi-finished products that can reduce the tire manufacturing cost by ultimately improving the productivity of a tire manufacturing plant and an automatic supply device for performing the method.

In order to achieve the above object, the present invention first winds up a semi-tread product with a conventional reel cartridge in a tread extrusion process during a tire manufacturing process, and then attaches the reel cartridge to a molding machine service. The tread semi-finished product is sent out at a constant speed and tension force (TENSION FORCE), and the tread semi-finished product is moved to a normal conveying conveyor while the length of the semi-finished tread is measured by a length measuring device installed on the conveying conveyor to drive the motor. Cut to a predetermined length by an ultrasonic cutter, and transport the semi-finished product cut to a predetermined length toward the forming drum by a supply conveyor, and the feed speed of the supply conveyor is the same as the rotational speed of the forming drum This semi finished product of tread is automatically wound on the drum Pressure, to produce a tread assembly.

1a is a schematic plan view of an automatic feed device for semi-tread in accordance with the present invention;

1B is a side view of FIG. 1A,

FIG. 2 is a detailed view of the portion “E” of FIG. 1A;

3 is a detailed view of the portion “F” of FIG. 1B;

4 is a side view of FIG. 3;

FIG. 5 is a detailed view of the portion “G” of FIG. 1A; FIG.

<Explanation of Drawing Symbols>

1 ... reel cartridge, 2 ... trad semi finished product,

3 ... feed conveyor, 5 ... motor,

6 ... timing pulley, 7 ... encoder,

11,12 ... support roller, 14 ... ultrasonic cutting machine,

17 ... forming drum, 18 ... ball screw,

19 ... LM rail, 21 ... profile roller,

27 ... timing belt, 31 ... driven sprocket,

36 ... electric chain, 44 ... spindle,

51 ... Applicator.

Hereinafter, with reference to the accompanying drawings will be described in detail the automatic semi-tread product supplying device and its supply method according to the present invention.

1A and 1B, the reel cartridge 1 is driven by a motor 25, and the tread semifinished product 2 is conveyed toward the conveying conveyor 3 through the feed roller 52 while forming a loop 26. . At this time, each of the motors 5 and 25 is operated at the same time.

The transfer conveyor is driven by passing a timing belt between the output shaft of the motor 5 fixed to the motor bracket 4 and the timing pulley 6 located at the front end of the transfer conveyor. At this time, the motor 15 located at the lower end of the applicator 51 is operated simultaneously with the motor 5 of the transfer conveyor to transfer the semi-finished tread.

The tread semifinished product conveyed to the conveying conveyor is measured at an angle with respect to the support rollers 11 and 12 and the tread semifinished product operated by the pneumatic cylinders 8, 9 and 10 after the length is measured by the encoder 7. The ultrasonic cutter 14 fixed to the movable box 23 by the anvil 13 is cut to a predetermined length and placed on the applicator 51. The applicator frame 34 supporting the applicator 51 is advanced on the LM rail 19 to the front of the forming drum 17 by the ball screw 18 connected to the bracket 48, the ball The screw 18 is connected to the motor by the timing belt and the timing pulley 50 to rotate. The applicator 51 is installed downward toward the forming drum 17 by a predetermined angle, so that a semi-tread product can be directly adhered to the forming drum 17 without a separate cylinder mechanism.

The applicator 51 is a cylinder-type centering guide roller 16 which meshes with a bevel gear 28 to the left and right sides of the centerline of the applicator 51 so that the semi-tread is supplied to the center of the forming drum 17. And the rotary rollers 27 are positioned in two rows to drive the chain 29. When advanced by the ball screw 18, the motor 15 shown in Fig. 3 is also driven so that the end of the tread semifinished product is located at "A". This position may vary within a certain range depending on the size of the forming drum 17.

The applicator 51, which is stopped in front of the forming drum 17 by a certain distance, is driven by the induction roller 16 and the timing belt 27, which are driven by the motor 15, and the semi-treaded product is along the centerline CL without twisting. It is adhered to the forming drum 17. At this time, the profile roller 21 and the brush roller 22 pushed up by the pneumatic cylinder 20 presses the semi-tread product on the forming drum 17 to improve adhesion. The applicator 51 and the transfer conveyor 3 are supported by the same frame 24.

FIG. 2 is a detailed view of the portion “E” of FIG. 1A.

In order to accurately guide the tread semifinished product cut to a predetermined length toward the center line, a plurality of centering guide rollers 16 are arranged at an angle to the left and right sides of the center line CL, and these rollers are paired in pairs of two to form one bearing unit. It is supported by 30 and is continuously connected to the chain 32 by a driven sprocket 31 provided at the end of each roller and driven by the motor 15 shown in FIG. At this time, the bevel gear 33 is geared to each other in the center line side is driven in the same direction.

3 and 4 are detailed views of the portion “F” of FIG. 1B and a side view thereof, illustrating the connection and driving portions of the guide roller and the rotary roller.

By connecting the coupling between the motor 15 and the reduction gear 38 with the coupling 39, the electric chain sprocket 40 is built up on the transmission shaft of the reduction gear 38, and the power transmitted to the transmission shaft of the reduction gear. By being transmitted to the sprocket 53 through the transmission chain 36, the power can be transmitted to the driven sprocket 31 shown in FIG. 2 by the bevel gear 28 fixed on the same shaft, wherein the transmission On one side of the chain 36, a chain tension control mechanism 54 composed of an idle sprocket was installed to prevent the transmission chain 36 from loosening down.

FIG. 5 is a detailed view of the portion “G” of FIG. 1A, and is a partial cross-sectional view of the brush roller for pressing the tread. FIG.

The brush roller is composed of a bushing 42 in which the brush 41 is tightly embedded and a hollow cylindrical body 43 which fits snugly on the inner circumferential surface of the bushing, and a bearing 45 between the brush roller 22 and the rotating shaft 44. The outer side of the bearing 45 in contact with the outer surface of the bearing (45) by mounting the fixing ring 46 to allow the brush roller 22 to rotate freely.

As described above, when the tread semifinished product supply device manufactured according to the present invention is used by being disposed on a tire manufacturing line, it is possible to automate the supply, winding and joining of the tread semifinished product, thus maintaining the tire quality uniformly. The safety accident of the worker can be prevented in advance, and ultimately, the tire manufacturing cost can be reduced by improving the productivity of the tire manufacturing plant.

Claims (3)

In the supply device for supplying the semi-finished tread, A conveying conveyor 3 for conveying the semi-finished tread released from the reel cartridge 1 driven by the motor 25; A feed roller 52 for feeding the tread semifinished product 2 toward the conveying conveyor 3; An applicator (51) installed between the conveying conveyor (3) and the forming drum to convey the tread semifinished product to the forming drum (17); An encoder (7) mounted on the conveying conveyor for measuring the length of the tread semifinished product being conveyed; An ultrasonic cutter (14) fixed to the box (23) which can be moved at a predetermined angle with respect to the semi-tread of the tread and installed at the rear end of the applicator (51); An applicator frame (34) for supporting said applicator (51); An LM rail 19 for guiding the frame 34 to the front of the forming drum 17; The centering guide roller 16 and the rotating roller of the cylinder type are positioned in two rows on the left and right sides of the center line of the applicator 51 to be fed to the center of the forming drum 17 to be engaged with the bevel gear 28. 27); A profile roller 21 and a brush roller 22 which pressurize the semi-finished tread to the pressure given by the pneumatic cylinder 20; Tread semi-automatic feeder, characterized in that consisting of. The method of claim 1, The applicator 51 has a plurality of centering guide rollers 16 are arranged obliquely to the left and right sides of the center line CL in order to accurately guide the tread semi-finished product cut to a predetermined length toward the center line. It is supported by one bearing unit 30, the driven sprocket 31 is installed at the end of each roller is continuously connected to the chain 32 is driven by a motor 15, the center line side bevel gear ( Tread semi-finished automatic feeder, characterized in that 33) is geared to each other and driven in the same direction. The method of claim 1, The brush roller 22 is composed of a bushing 42 in which the brush 41 is densely embedded and a hollow cylindrical body 43 fitted to the inner circumferential surface of the bushing, and the rotating shaft 44 interpolated in the brush roller 22. Tread semi-finished automatic feeder, characterized in that the interposition between the bearing 45, the outer side of the bearing 45 in the state in contact with the outer ring of the fixing ring 46 is mounted freely rotatable .