KR100451968B1 - The device for automatically sticking a strip - Google Patents

Abstract

The present invention relates to a strip automatic attachment device capable of automatically supplying and attaching a strip having a length corresponding to the width of the body ply in response to the movement and stop time of the body ply conveyor.

Strip feeder; At least one attachment unit receiving the strip from the strip feeder and moving along the width direction of the conveyor at the top of the body fly conveyor and attaching the strip to the body fly joint; And an attachment unit moving device for supporting the attachment unit and simultaneously moving in the width and length directions of the body fly conveyor, and a control unit for controlling the operation of the attachment unit and the attachment unit moving device.

In addition to the supply and attachment of the strip is automatically made by the constituent device of the present invention and the control unit for precisely controlling the strip, the operation can be performed continuously in response to the stopping and moving of the body fly conveyor, so that the strip is attached by hand. Compared to the process, the work precision, work speed and work efficiency are dramatically improved.

Description

The device for automatically sticking a strip}

The present invention relates to a device for attaching a strip, which is a reinforcing member, to a joint of a body ply, a tire semifinished product, and more specifically, to a strip having a length corresponding to the body ply width in response to the movement and stop time of the body ply conveyor. It relates to a strip automatic attachment device that can be supplied and attached to.

The body ply is one of the semi-finished tires that are installed in the lower part of the tread part to maintain the strength of the tire. The steel ply has a structure in which steel cords are arranged at regular intervals and rubber toppings are disposed on the upper and lower parts thereof. In order to wind and shape the body ply on the forming drum, the body plies cut out from the cutting machine must be connected to each other by a zipper. However, in the process of winding and unwinding the body ply, these body ply joints may increase, and if the body ply is attached to the tire in the future and the air pressure is applied, the joints expand inhomogeneously compared to the other parts of the body ply and cause tire rupture accidents. This is an important factor to reduce the life of the tire. Therefore, a rubber reinforcing member, such as a strip, is attached to the joint portion of the body ply to prevent uneven expansion of the body ply.

1 is a schematic view showing a conventional strip feeding apparatus.

As shown, a conventional strip feeder recommends a stripliner roll 10 with a strip 101 laid on the liner 102 and wound together, and a liner 102 unwound from the stripliner roll 10. It consists of a liner take-up roll 20, a turning roll 40 for switching the direction of the strip 101 unwound from the motor 30 driving the liner take-up roll 20 and the strip liner roll 10. do.

Conventionally, strips fed from such strip feeders are cut to length and manually attached onto body ply joints on a body ply conveyor. However, the attachment process was performed by hand, which greatly reduced the work speed and productivity, and the strip length was often not matched to the body ply width because the strip was properly cut by the eyes of the human eye and attached to the body ply joint surface. When the length is short, there was a problem in that the tension force and the attachment position of the strip were not fixed by forcibly pulling to fit the length of the body ply width.

The present invention has been made to solve the above problems, to provide a strip automatic attachment device that can be automatically attached to the body ply joint surface to have a constant length and a constant tensile force to match the body ply width, There is a purpose.

1 is a schematic view showing a conventional strip feeder,

2 is a schematic view showing a strip automatic attachment apparatus according to the present invention,

Figure 3 is a schematic diagram showing the configuration of the strip feeding device and strip attachment unit of the automatic stripping device according to the present invention,

4A to 4F are operation state diagrams showing an operation process of the strip automatic attachment apparatus according to the present invention.

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

100 ... strip supply, 101 ... strip,

102 ... liner, 103 ... stripliner

110 ... stripliner roll, 120 ... liner roll,

150 ... looping roller, 151 ... guide shaft,

170 sensor, 200 attachment unit shifter,

210 mobile platform, 211 central axis,

212 timing belt, 220 support,

230 ... long cylinder, 240 ... servo motor,

250 ... base, 300 ... attachment unit,

320 ... strip storage plate, 321 ... silicone rubber sheet

331 ... width moving cylinder, 332 ... vertical moving cylinder,

333 vacuum pad, 342 silicon roll cylinder,

343 ... silicone roll, 350 ... knife air cylinder,

360 ... fixed member, 500 ... conveyor,

501 body fly seams.

In order to achieve the above object, the strip automatic attachment device of the present invention,

Strip feeder;

At least one attachment unit receiving the strip from the strip feeder and moving along the width direction of the conveyor at the top of the body fly conveyor and attaching the strip to the body fly joint;

An attachment unit moving device which supports the attachment unit and moves in the width and length directions of the body fly conveyor;

It is configured to include a control unit for controlling the operation of the attachment unit and the attachment unit moving device.

The strip feeder turns the strip liner roll with the strip and liner wound together, the liner take-up roll driven by the motor to wind the liner released from the strip liner roll, and the direction of the strip released from the strip liner roll. A turning roll, a guide roll for guiding the turned strip, and a roofing lifting and lowering along the guide shaft provided between the turning roll and the guide roll in response to the tension change of the strip, and transferring the strip to the attachment unit. Independent control unit for controlling the drive of the roller and the motor is characterized in that.

On the other hand, the attachment unit moving device, the movable worktable which is long in the width direction on the body fly conveyor with at least one central axis to which the attachment unit is slidably coupled and a timing belt to which the attachment unit is fixed, and the movement A support is installed on the upper surface of the left and right seats in the width direction left and right of the conveyor, the longitudinal cylinder and the timing belt and the longitudinal cylinder coupled to the support extending in the longitudinal direction of the conveyor width of the conveyor Another aspect of the present invention includes a driving unit that moves in the direction and the longitudinal direction, respectively.

The attachment unit may include a plurality of guide rolls for receiving and transporting strips from the strip supply device, a strip storage plate accommodating the strips from the guide rolls, and moving the strips accommodated in the strip storage plate to the attachment start position of the body ply joint. It is characterized in that it is provided with a moving means for attaching, the attachment means for attaching the moved strip and the cutting means for cutting the attached strip.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the automatic strip mounting apparatus according to the present invention.

Figure 2 is a schematic diagram showing an embodiment of the automatic strip mounting apparatus according to the present invention. For convenience of description, the body ply conveyor 500 and the pedestal 250 installed on the left and right in the width direction of the conveyor are shown in a perspective view, and the strip work apparatus 100 and the movable work platform 210 and the strip on the upper pedestal 250 are shown. Attachment unit 300 is shown in side view.

The upper surface of the seat 250 is provided with a longitudinal cylinder 230 extending in the longitudinal direction of the conveyor 500. The longitudinal cylinders 230 are provided with sensors 231 and 232 for detecting the forward and backward movement of the cylinder 220. One side of the longitudinal cylinder 230 is fixed to the support (220) for supporting the movable work platform (210). As will be described later, the support 220 and the movable working platform 210 fixed to the longitudinal cylinder 230 by the movement of the longitudinal cylinder 230 is moved along the longitudinal direction of the conveyor 500.

The movable work bench 210 is seated on the support 220, and the central axis 211 extending in the width direction of the conveyor is coupled to the front and rear surfaces of the movable work bench 210 facing in the longitudinal direction of the conveyor. Although only a central axis 211 is shown in the longitudinal direction of the conveyor in the figure, another central axis 211 is coupled to the side of the movable work platform 210 in the longitudinal rear side. Pulleys 213 are provided at both ends of the upper surface of the movable work bench 210 to fasten the timing belt 212, and a servo motor driving the timing belt 212 at one end of the movable work bench 210. 240 is attached. The timing belt 212 hanging on the pulley 213 forms an almost oval loop that is almost rectangular with a long radius between the pulleys 213 at both ends. The pulley 213 on the upper portion of the servo motor 240 and the movable work table 210 is connected by a driving belt 214, so that the servo motor 240 drives the driving belt 214 and thus pulley ( 213 is rotated so that the timing belt 212 is rotated.

The central unit 211 is coupled so that the attachment unit 300 can slide along the width direction of the conveyor. At least one attachment unit 300 may be installed on the movable work platform 210 depending on the number of strips 101 supplied, and at least one attachment of the central axis 211 to which the attachment unit 300 is coupled is also provided. Can be. In this embodiment, as will be described later, since the strip 101 supplied from the strip supply apparatus 100 is two strands, the attachment unit 300 and the central axis 211 are moved in pairs before and after the longitudinal direction of the conveyor. It is provided on the work bench 210. In addition, the attachment unit 300 is fixed to the timing belt 212 by a fixing member 360 attached to an upper end thereof, and the timing belt 212 is driven by the servo motor 240 so that the width direction of the conveyor. As it moves to the attachment unit 300 is also moved. Accordingly, the pair of attachment units 300 are fixed to upper and lower semicircular portions of the elliptical loop of the timing belt 212, and move in opposite directions by rotation of the timing belt 212, alternately. The strip 101 is attached to the joint 501 of the body ply.

On the other hand, the strip supply apparatus 100 for supplying the strip 101 to the attachment unit 300 adjacent to the seat 250 is provided.

Figure 3 is a schematic diagram showing the configuration of the strip feeding device and strip attachment unit of the automatic strip mounting apparatus according to the present invention. For convenience of description, in FIG. 3, the strip feeding apparatus is represented in a perspective view.

Referring to FIG. 3, the strip supply apparatus 100 according to the present invention includes a cradle 180 for supporting various rolls, and a wheel 181 is installed at a lower end thereof to enable movement. The strip 101 is wound on the strip liner roll 110 in the form of a strip liner 103, which is wound on a wide liner 102 with two strands spaced apart at regular intervals. The liner roll 120 is wound around the strip liner roll 110 to wind the liner 102 released from the strip liner roll 110. The liner roll 120 is connected to the drive motor 130 by a chain. When the motor 130 is driven, the liner roll 120 is connected to the liner roll 120 by the liner roll 120 and the liner 102. 110 rotates and strips 101 and liner 102 are each released. The right side of the liner roll 120 is provided with a turning roll 140 for redirecting the strip 101 from the strip liner roll 110 and a guide roll 160 for guiding it to the attachment unit 300. have. A guide shaft 151 is installed between the direction change roll 140 and the guide roll 160, and the roofing roller 150 is coupled to the guide shaft 151 so that it can be lifted up and down along the axis. Since the strip 101 is released from the strip liner 103 in two strands, the turning roll 140, the guide roll 160, and the roofing roller 150 are correspondingly provided in pairs. The pair of strips 101 from the strip liner roll 110 forms a pair of U-shaped loops along the turning roll 140 and the roofing roller 150 and the guide roll 160 to form an attachment unit ( 300).

The attachment unit 300 includes a plurality of guide rolls 310 for receiving and transporting the strips 101 from the strip supply device 100 and a strip storage plate for receiving the strips 101 from the guide rolls 310. 320, and a moving means 330 for moving the received strip 101 to the attachment start position A of the body ply joint 501, and an attachment means 340 for attaching the moved strip 101. And cutting means 350 for cutting the attached strip 101.

The strip 101 is supplied from the strip supply device 100 to the horizontal guide roll 311 and the vertical guide roll 312 attached to the upper left of the attachment unit 300, and is provided at the left end of the attachment unit 300. The horizontal press roll 316 and the crown roll 317 at the rear end of the strip storage plate 320 attached to the bottom of the attachment unit 300 through the groove guide roll 315 between the 313 and the silicon roll 314. After being supplied therebetween, it is stored in the strip accommodating plate 320. The press roll 313 is a no-back guide roll that does not reverse rotation to prevent the reverse of the strip 101, the crown roll 317 performs the centering function of the strip 101.

The upper surface of the strip storage plate 320 is attached with a silicone rubber sheet 321 to stably receive the strip 101. The strip moving means 330 is installed on the strip housing plate 320, the width moving cylinder 331 to move in the width direction of the conveyor and is attached to one end of the width moving cylinder 331 It is preferable that the upper and lower movement cylinder 332 is provided with a vacuum pad 333 for adsorbing the front end of the strip at the bottom thereof.

The strip attaching means 340 includes a protrusion support 341 protruding from the body of the attachment unit 300, a silicon roll 343 which compresses and rolls the strip 101 in a moving direction of the attachment unit 300, and The silicon roll 343 may be configured to include a silicon roll moving cylinder 342 installed at one side of the protruding support 341 while having the lower end thereof.

The strip cutting means 350 is attached to the lower portion of the knife 351 is preferably a vertical movement cylinder with a knife 350 installed on the upper side of the strip storage plate 320.

The part marked ▲ is connected to the control unit as a sensor for detecting the operation and stop of each device.

Hereinafter, the operation according to the embodiment will be described with reference to FIGS. 4A to 4F, which illustrate an operation process of the strip automatic attachment device according to the present invention.

Referring to FIG. 4A, while the body fly conveyor 500 located between the seats 250 is moving in the longitudinal direction, the attachment unit 300 moves in the width direction of the conveyor to the strip attachment start position A. FIG. Done. The path along which the attachment unit 300 moves is set to match the position of the joint 501 of the body ply when the body ply conveyor 500 is stopped.

The attachment process of the strip 101 will now be described.

When the strip 101 is supplied from the strip supply device 100 and stored in the strip storage plate 320 through a plurality of guide rolls 310 of the attachment unit 300, the timing belt is driven by driving the servo motor 240. 212 is moved to the right side in the width direction of the conveyor, so that the attachment unit 300 fixed to the timing belt 212 moves to the attachment start position A of the body fly joint 501 on the right side of the conveyor. do. At this time, another attachment unit 300 (attached unit indicated by dashed lines) fixed to the timing belt 212 at the rear side of the movable workbench moves in the opposite direction according to the movement of the timing belt 212. That is, the two attachment units 300 are always moved in the opposite direction by the rotation of the timing belt 212 forming an oval loop.

When the attachment start position A is reached, the attachment unit 300 stops, and the vertical movement cylinder 332 installed at one side of the widthwise movement cylinder 331 of the attachment unit 300 is accommodated in the strip storage plate 320. The lowering of the strip 101 and the vacuum pad 333 provided at the lower end of the strip 101 generates a suction force by the vacuum to absorb the front end of the strip 101. After the adsorption is completed, the vertical movement cylinder 332 is moved to a position just above the strip attachment start position A by the upward movement of the vertical movement cylinder 332 and the movement of the horizontal movement cylinder 331.

Referring to FIG. 4B, at this time, the body fly conveyor 500 is stopped, and the vertical movement cylinder 332 is lowered at the A position so that the front end of the strip 101 is connected to the joint 501 of the body fly. Attach to. After attaching the strip 101 and removing the suction force of the vacuum pad 333, the vertical movement cylinder 332 is raised to return to the original position by the widthwise movement cylinder 331. Subsequently, the silicon roll moving cylinder 342 provided at one side of the protruding support 341 of the attachment unit 300 is lowered until the silicon roll 343 provided at the lower end thereof contacts the upper surface of the conveyor 500. When the attachment unit 300 is moved to the right along the width direction of the conveyor.

In FIG. 4C, as the attachment unit 300 moves, the silicon roll 343 rolls from the front end of the strip 101 in the moving direction of the attachment unit 300 and continues to be supplied from the attachment unit 300. The body ply 501 is pressed. At this time, when the silicon roll 343 is connected to the silicon roll 314 of the same size at the bottom of the no back guide roll 313 by the connecting belt 344, the rotation speeds of the two silicon rolls coincide, and thus the strip It is possible to match the supply speed of 101 with the attachment speed.

In FIG. 4D, the attachment unit 300 stops at a predetermined position B of the conveyor 500 previously inputted to the control unit, and at this time, a vertical movement cylinder with a knife provided on an upper side of the strip storage plate 320 ( As the 350 is lowered, the strip 101 is cut.

Referring to FIG. 4E, afterwards, the attachment unit 300 moves, attaches the remaining portion of the cut strip 101, and finally the attachment unit 300 stops at the attachment completion position C. At the end of the attachment of the strip 101.

When the attachment of the strip 101 is completed, the body fly conveyor 500 again moves in its longitudinal direction to supply the next body fly joint 501. Since the strip attachment position A on the body fly conveyor 500 is fixed to coincide with the body fly joint 501 to be supplied, the other attachment unit 300 behind the waiting work platform 210 waits for the strip 101. In order to attach), it must move in the longitudinal direction of the conveyor by the width of the mobile work platform 210.

Referring to FIG. 4F, since the movable work bench 210 is connected to the longitudinal cylinder 230 provided on the upper surface of the seat 250 by the support 220, the longitudinal cylinder 230 is connected to the longitudinal direction of the conveyor. The moving work bench 210 is moved by moving forward. The rear attachment unit 300 (indicated by the dotted line in the drawing) moves in the opposite direction to the first attachment unit 300 as described above so that the first attachment unit 300 completes the attachment of the strip 101 and at the same time The strip attachment start position has been reached. Therefore, the movement of the conveyor 210 of the mobile workbench 210 in the longitudinal direction is completed at the same time as the attachment unit 300 of the opposite side attaches the strip strand to the joint 501 of the body ply in the same process. Longitudinal movement speed of the conveyor 500 and movement of the movable workbench 210 so that the two attachment units 300 can continuously attach the strip 101 in response to the movement and stop of the body fly conveyor 500. The speed is set to be the same.

All of the above process is sent to the control unit by a sensor for detecting the operation and stop signal of each of the components, the control unit receives the signal in accordance with the program input in advance the operation of the components in the attachment unit 300, The movement of the attachment unit 300, the movement of the longitudinal cylinder 230 and the movement of the work platform 210 is controlled to automatically attach the strip 101 to the body fly joint 501. For this purpose, information on the position of each device (for example, strip attachment start position (A), strip cutting position (B), attachment completion position (C), etc.) on the body fly conveyor 500 is pre-programmed in the program of the controller. Of course it is entered. The servo motor 240 driving the timing belt 212 is also included in the controller.

On the other hand, since the strip 101 is a rubber product, it is necessary to control the tension applied to the strip 101 in a certain range for smooth supply and attachment of the strip 101. The tension applied to the strip 101 is controlled by the sensor 170 installed in front of the holder 180 and an independent controller connected thereto. The feeding process of the strip and the tension adjusting process applied to the strip are described as follows.

Referring to FIG. 3 again, after storing the strip 101 in the strip storage plate 320 attached to the lower portion of the attachment unit 300 to be described later, and driving the motor 130, the liner roll 120 is liner 102. ), And thus the two strips 101 wound on the strip liner 103 are released from the strip liner roll 110. The strip 101 is turned down from the turning roll 140 and is supplied to the attachment unit 300 via the roofing roller 150 and the guide roll 160. When the attachment unit 300 moves in the width direction of the conveyor for attaching the strip 101 to the body fly joint 501, the tension applied to the strip 101 is increased by the movement of the attachment unit 300 and the motor 130. Will change depending on the rotation speed. The roofing roller 150 moves up and down along the guide shaft 151 according to the tension change.

When the attachment unit 300 attaches the strip 101 and moves to the attachment completion position (C), or when the strip 101 is loosened because the rotation speed of the motor 130 is too fast, the tension applied to the strip 101 is applied. This weakens the roofing roller 150 is lowered and the U-shaped strip loop is lengthened. On the contrary, when the attachment unit 300 moves to the attachment start position A or when the rotation speed of the motor 130 is slow, the roofing roller 150 guides the guide shaft 151 due to the increase in tension applied to the strip 101. Will rise. When the roofing roller 150 ascends or descends by more than a predetermined range due to the tension change as described above, the sensor 170 attached to the front end of the roll holder 180 of the strip feeder 100 detects this and signals it to an independent controller. Will be sent. When the independent control unit receives such a signal, the rotation speed of the motor 130 is changed or stopped to adjust the winding speed of the liner 102 so that the adjustment of the strip loop length and the tension applied to the strip 101 are maintained in a certain range. do. In this embodiment, since the strip 101 forms a loop of two strands, the condition for adjusting the rotational speed of the motor 130 is changed depending on the case of the rising and falling of the roofing roller 150. That is, the roofing roller (150) In the case of ascending, when the two roofing rollers 150 both rise above a predetermined range, the rotation speed of the motor 130 is increased, and in the case of the roofing roller 150 falling, any one of the roofing rollers ( If only 150 is lowered below a certain range to stop the motor 130 or to reduce the rotation speed to adjust the length of the strip loop.

As described above, the strip supply apparatus 100 according to the present invention controls the rotational speed of the motor 130 by the sensor 170 and the independent controller, thereby maintaining the tension of the strip 101 within a predetermined range and maintaining the strip 101. Accumulation in the form of a loop allows the attachment unit 300 to smoothly attach the strip 101 to the body ply 501.

As described above, the strip automatic attachment device of the present invention, the supply and attachment of the strip is automatically made by the component of the present invention and the control unit for precise control thereof, the operation is stopped and moved of the body fly conveyor It can be made in succession to correspond to the effect of dramatically improving the work precision, work speed and work efficiency compared to the strip attachment process that was carried out by the manual hand.

In addition, in order to reinforce the bonding force of the body ply joints, the strips can be uniformly supplied in an appropriately selected tension range, and the length of the strips can be exactly matched to the width of the body ply joints to attach the strips. It is effective to ensure product homogeneity.

Claims (8)

Strip feeder 100; At least one attachment unit 300 receiving the strip 101 from the strip feeder and moving along the width direction of the conveyor at the top of the body fly conveyor 500 and attaching the strip to the body fly joint 501; An attachment unit moving device 200 supporting the attachment unit and simultaneously moving in the width direction and the longitudinal direction of the body fly conveyor; Automatic strip attachment device comprising a control unit for controlling the operation of the attachment unit and the attachment unit moving device. The method of claim 1, The strip feeding apparatus 100 is a strip liner roll 110 in which a strip 101 and a liner 102 are wound together, and a liner winding driven by a motor 130 to wind a liner released from the strip liner roll. The roll 120, the turning roll 140 for changing the direction of the strip released from the strip liner roll, the guide roll 160 for guiding the turned strip, and the tension change of the strip Lifting along the guide shaft 151 installed between the direction change roll and the guide roll and comprises a looping roller 150 for transferring the strip to the attachment unit 300 and an independent control unit for controlling the driving of the motor. Strip automatic attachment device. The method of claim 1, The attachment unit moving device 200 includes one or more central axes 211 to which the attachment unit 300 is slidably coupled and a timing belt 212 to which the attachment unit is fixed. The movable work bench 210 long in the width direction on the), and the support 220 is installed on the upper surface of the seat 250 located on the left and right in the width direction of the conveyor to support the moving work table, and is combined with the support Strip auto-attachment comprising a longitudinal cylinder 230 extending in the longitudinal direction of the conveyor and a drive unit 240 for moving the timing belt and the longitudinal cylinder 230 in the width direction and the longitudinal direction of the conveyor, respectively. Device. The method according to claim 1 or 2, The attachment unit 300 includes a plurality of guide rolls 310 for receiving and transporting the strips 101 from the strip supply device 100, a strip storage plate 320 for receiving the strips from the guide rolls, and a strip storage plate. A moving means 330 for moving the strip housed therein to the attachment start position A of the body ply joint 501, an attachment means 340 for attaching the moved strip, and cutting means for cutting the attached strip ( Automatic strip attachment device characterized in that the 350 is provided. The method of claim 4, wherein Automatic strip attachment device, characterized in that the silicone rubber sheet 321 is attached to the upper surface of the strip housing plate (320). The method of claim 4, wherein The strip moving means 330 is installed on the strip housing plate 320, the width moving cylinder 331 to move in the width direction of the conveyor 500, and one end of the width moving cylinder 331 Automatic strip attachment device characterized in that consisting of the vertical movement cylinder 332 is attached to the lower portion is provided with a vacuum pad 333 to suck the front end of the strip 101. The method of claim 4, wherein The strip attaching means 340 includes a protrusion support 341 protruding from the body of the attachment unit 300, a silicon roll 343 which compresses and rolls the strip 101 in a moving direction of the attachment unit, and the silicon roll. Strip auto-attaching device, characterized in that consisting of a silicon roll moving cylinder 342 is installed on one side of the protruding support with a lower end. The method of claim 4, wherein The strip cutting means 350, the strip automatic attachment device characterized in that the upper and lower movable cylinder 350 with a knife installed on the upper side of the strip storage plate (320).