KR100262894B1 - Apparatus for conveying parts and method for controlling the same - Google Patents

Abstract

PURPOSE: A component feed apparatus and a control method thereof are provided to detect moving amount of a tape and compare the detected moving amount thereof with a reference location data. CONSTITUTION: A sprocket(36) moves a tape automated bonding tape(30') to a tool of other path according to a predetermined driving signal. A servo motor(38) rotates according to a predetermined driving signal and determines rotating amount of the sprocket(36). A driver(40) controls rotating amount of the servo motor(38) according to a predetermined control signal. A drawing means(42) draws an IC component attached on the tape automated bonding tape(30') from the sprocket(36) by a predetermined timing and feeds the drawn IC component to a pressurizing section. A displacement sensor(46) senses a hole of the tape automated bonding tape(30') and detects moving amount of the tape automated bonding tape(30').

Description

Parts conveying device and control method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape automated bonding (TAB) system of a parts compactor, and more particularly to an OLB (tap) system for compressing IC components on a panel of a liquid crystal display (hereinafter referred to as 'LCD'). The present invention relates to a component transfer device and a control method thereof capable of increasing the degree of compression of a component in an outer lead bonding line.

In general, a technology for mounting a component is classified into a SMD (Surface Mount Device) technology for mounting an IC component on a printed circuit board (PCB), a tap technology for pressing an IC component on an LCD panel, and the like.

The tap technology may be further classified into inner lead bonding (ILB) technology and outer lead bonding (OLB) technology that compresses IC components to the edges of LCD panels.

When the OLB line is largely classified into a mechanical configuration and a function, the OLB line is composed of an ACF attacher, a temporary presser, a tap press part and a main presser.

First, the ACF attacher is configured to attach an anisotropic conductive film (ACF) tape to the edge of the automatically transferred LCD panel, and the press fit presses the automatically transferred IC components to the edge of the LCD panel at an appropriate temperature and pressure. The tab press unit is configured to press the IC components at regular intervals and to receive the bonded tab tape, and to blow the IC components one by one and transfer each of the punched IC components to the presser, and the main press is mounted on the presser. It is configured to receive an LCD panel pressurized from the IC component and to finally press the pressurized component to a high temperature (about 300 ° C or higher) above a predetermined temperature.

Looking at the configuration and operation of the tab press portion of the OLB line according to an embodiment of the prior art with reference to Figure 1 as follows.

The tab tape 1 is bonded to the IC components 3 at regular intervals and the holes 5 at both sides of the edges and the tab tape 1 to which the IC components are bonded. The supply reel 7 for supplying the tape 1 according to the present invention, the first recovery reel 9 for recovering only the tape 1 ″ of the tab tape 1 supplied from the supply reel 7, and the supply. A sprocket 11 for engaging and interlocking with the holes 5 of the tab tape 1 provided from the reel 7 and moving the tape 1 'to which the parts are adhered, by another path, and the conveying means 11 ) A stepping motor 13 for driving a predetermined rotation angle, a driving unit 15 for determining and driving the amount of rotation of the stepping motor 13 according to a predetermined control signal, and the transfer means 11. The press part 17 which punches the IC component 3 attached on the tab tape 1 'at predetermined timing, and transmits it to the pressing part 19, and the said A second recovery reel 21 for recovering the tape 1 '' 'from which the IC component is punched out of the tab tape 1' via the switch 17; and the stepping motor 13 and the press section 17. A sensor 23 installed on a tape movement path therebetween and detecting a hole 5 of the tab tape 1 and outputting a signal corresponding thereto, and receiving a signal output from the sensor 21 and receiving a tap tape ( And a control unit 25 for checking movement of 1 ') and controlling operation of the drive unit 15 at a predetermined timing to move the tab tape by a predetermined distance.

That is, the supply reel 7 is wound around the tab tape (1) to which the IC components 3 are bonded at regular intervals, and the IC component (3) of the tab tape (1) in accordance with the rotation of the stepping motor (13) Tape 1 'is supplied to the press unit 17 through the conveying means 11, and the protective tape 1 "which has wrapped the tape to protect the tab tape 1 is the first recovery reel. It is delivered to (9) and recovered.

As the stepping motor 13 rotates, the teeth formed in the conveying means 11 and the holes 5 drilled at both edges of the tab tape 1 are engaged and moved by a predetermined distance and are supplied to the press unit 17.

Before the tab tape 1 'is supplied to the press unit 17, the sensor 23 senses light transmitted through the hole 5 perforated at the edge of the tape 1' and controls a corresponding signal. Output to the (25), the control unit 25 receives the signal output from the sensor 23 to check the degree of movement and the presence of the tape, and the constant rotation angle (unit movement amount of the tape) of the stepping motor 13 To control.

Since the tape feeding method of the conventional tap press operated as described above is an open-loop control method using a stepping motor and a sensor, a feeding error (eg, concentricity error of the feeding means, driving device) Reverse rotation caused by looseness between parts), deviation of initial position of part on tap tape, deviation of hole dimension of tap tape, and feed error due to difference in tape tension of feed and recovery reel. It was not easy to transfer to the center correctly.

As described above, when the tab tape is not accurately conveyed to the press part, since there is no detecting means for detecting the amount of movement of the tape, the conveyance position of the tape cannot be corrected. Therefore, the press part is used to punch the IC component bonded onto the tape. The punching precision was low.

SUMMARY OF THE INVENTION In order to solve the above problems of the prior art, an object of the present invention is to provide a tape feeding device of a tab press with a displacement sensor for detecting the amount of movement of the tap tape and a servo motor that can adjust the amount of movement and the position of the tap tape. In addition, the present invention provides a component transfer device and a method of controlling the same, by precisely detecting a moving amount of a tape and comparing it with reference position data and then controlling the rotational amount of the servo motor to improve the degree of punching of the IC component.

In order to achieve the above object, the apparatus of the present invention is a tab press system for supplying a tab (TAB) tape bonded to the IC components and punching out the IC components one by one, and then transmitting them to the pressing portion, the edge of the tab tape supplied from the outside Transfer means for interlocking with the holes and transferring the tape to which the IC component is bonded; A servo motor which is rotated according to a predetermined control signal to determine the amount of rotation of the conveying means to convey the tape by a predetermined distance; Punching means for punching the IC component attached to the tab tape via the transfer means at a predetermined timing and then transferring the punched IC component to the pressing portion; A displacement measuring sensor installed on the tape movement path between the servomotor and the punching means and detecting a movement amount of the tap tape from a predetermined reference position and outputting a signal corresponding thereto; And calculating and receiving the tape movement amount detection information from the displacement measuring sensor and comparing the result with the preset reference data to determine whether the result value matches the target value, and then feeding the position correction data of the tape back to the servomotor to move the tab tape. And control means for correcting the position.

In addition, in order to achieve the above object, the operation method of the present invention comprises the steps of: supplying a tab tape to which the IC component is bonded to the punching means; Detecting the unit movement amount and the tape position information moved from the predetermined reference position to the supplied tab tape; Receiving the calculated position information data, calculating the calculated position information data, and comparing the preset position information data with each other to determine whether the position information data coincides with a moving target value of the tape; If the detected tape movement amount information and the reference target value do not coincide with each other, calculating the error position to calculate correction data and feeding back a correction signal corresponding thereto; And correcting a current position of the tab tape by receiving the tape position correction signal.

1 is a schematic view showing a tap press control device according to the prior art.

2 is a schematic view showing a tap tape feeding control device according to an embodiment of the present invention.

3 is a flowchart illustrating an operation process of FIG. 2.

Explanation of symbols on the main parts of the drawings

30: TAB (Tape Automated Bonding) tape,

32: supply reel, 34: first recovery reel,

36: Sprocket, 38: Servo motor,

40: servo drive unit, 42: punching means (press),

44: second recovery reel, 46: displacement measuring sensor,

48: control unit.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 2 is a schematic view showing a tap tape feeding control device according to an embodiment of the present invention, in which a TAB tape 30, a supply reel 32, a first recovery reel 34, and a transfer means 36 are provided. ), A servo motor 38, a drive unit 40, a punching means 42, a second recovery reel 44, a displacement sensor 46 and a control unit 48.

Meanwhile, the tape automated bonding (TAB) tape 30 may include a tape 30 for tabs 30 having holes formed at regular intervals on both sides of the edges and bonded with IC components at regular intervals. And a protective tape 30 "which is bonded to the tab tape 30 'to protect the IC components.

In addition, the supply reel 32 is configured to wind the tab tape 30 to which the IC components are bonded and to supply the tape according to a predetermined control signal, and the first recovery reel 34 is the supply reel 32. It is comprised so that only the protective tape 30 "may be collect | recovered out of the tab tape 30 supplied from this.

In addition, a sprocket 36 is interlocked with the hole of the tab tape 30 provided from the supply reel 32 in accordance with a predetermined driving signal and moves the tab tape 30 'to a mechanism part of another path. The servo motor 38 is rotated according to a predetermined drive signal and is configured to determine the amount of rotation of the transfer means 36, and the drive unit 40 is configured according to the predetermined control signal. 38, and the punching means 42 punches the IC component attached on the tab tape 30 'via the transfer means 36 at a predetermined timing and then punches the punched IC. It is configured to transmit the component to the press fitting part (not shown).

In addition, the displacement sensor 46 is installed on the tape movement path between the servo motor 38 and the punching means 42 and detects the hole of the tab tape 30 'to detect the movement amount of the tape, and then corresponds to the tape movement path. Is configured to output a signal, and the second recovery reel 44 is configured to recover the tape 30 '' 'from which the IC component is punched out of the tab tape 30' via the punching means 42, The controller 48 receives the tape movement amount detection information from the displacement sensor 46 and compares it with the preset reference data, and outputs predetermined correction data to the driver 40 when the result value is out of the target value. The position angle of the servo motor 38 is controlled to correct the position of the tab tape 30 '.

On the other hand, the displacement sensor 46 may be configured by a method of detecting the amount of movement of the tap tape by sensing the amount of distance that the tap tape has moved from a predetermined reference position to the position of the sensor 46, the servo motor 38 It can also be configured by a method for detecting the amount of movement of the tab tape by sensing the rotation angle of.

That is, the present invention detects the moving amount of the tape by the displacement sensor 46 and compares it with the preset reference data, and if it does not match the target value, the correction data is fed back to the servomotor 38 to adjust the moving position of the tap tape. It is a closed-loop control method that can increase the accuracy of the punching out of IC components by correcting it.

Looking at the overall operation of the present invention configured as described above with reference to the flow chart of FIG.

First, the tab tape 30 to which the IC component is bonded is supplied to the punching means 42 in accordance with the drive of the servomotor 38 (S1).

The movement amount and position information of the tape moved from the predetermined reference position by the displacement sensor 46 to the unit movement amount of the tab tape 30 'supplied to the punching means 42 is detected (S2).

The controller 48 receives and calculates the position information data detected above, and compares the calculated value with preset reference position data to determine whether the moving target value of the tape 30 'is matched (S3).

If the positional information according to the unit movement amount of the tap tape 30 'detected as described above does not match the reference target value, the controller 48 calculates the error position to calculate correction data and outputs a correction signal corresponding thereto. (S4).

The servo motor 38 is driven by receiving the tap tape position correction signal output from the driving unit 40 and corrects the movement position of the tap tape 30 ', and then supplies the tap tape to the punching means to punch the IC component. (S5).

On the other hand, when the unit movement amount of the tab tape 30 'detected in the unit movement amount detecting step of the tab tape 30' coincides with a preset reference target value, the operation of correcting the movement position of the tab tape 30 'is performed. Without performing, the step of supplying the tab tape 30 'is performed (S6).

Therefore, in the present invention as described above, by detecting the moving error amount of the tape in the process of supplying the tap tape to the punching means and feeding back the error amount to correct the moving position of the tap tape, Improvements can improve the degree of pressing and improve machine utilization and productivity due to increased reliability for the parts crimping facility.

Claims (3)

In a tab press system for supplying a tape (TAB) tape bonded to the IC components, punching the IC components one by one, and then sent to the pressing portion, Transfer means for interlocking with the edge holes of the tab tape supplied from the outside and transferring the tape to which the IC component is bonded; A servo motor which is rotated according to a predetermined control signal to determine the amount of rotation of the conveying means to convey the tape by a predetermined distance; Punching means for punching the IC component attached to the tab tape via the transfer means at a predetermined timing and then transferring the punched IC component to the pressing portion; A displacement measuring sensor installed on the tape movement path between the servomotor and the punching means and detecting a movement amount of the tap tape from a predetermined reference position and outputting a signal corresponding thereto; And calculating and receiving the tape movement amount detection information from the displacement measuring sensor and comparing the result with the preset reference data to determine whether the result value matches the target value, and then feeding the position correction data of the tape back to the servomotor to move the tab tape. And a control means for correcting the position. Supplying a tab tape to which an IC component is bonded to a punching means; Detecting the unit movement amount and the tape position information moved from the predetermined reference position to the supplied tab tape; Receiving the calculated position information data, calculating the calculated position information data, and comparing the preset position information data with each other to determine whether the position information data coincides with a moving target value of the tape; If the detected tape movement amount information and the reference target value do not coincide with each other, calculating the error position to calculate correction data and feeding back a correction signal corresponding thereto; And And receiving the tape position correction signal to correct the current position of the tab tape. 3. The method according to claim 2, wherein when the unit movement amount of the tap tape detected in the unit movement amount detecting step of the tap tape coincides with a preset reference target value, the tab tape is continuously inserted without performing an operation of correcting the movement position of the tap tape. Part feeding control method, characterized in that for performing the step of feeding.

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