KR20090114611A - Tape Feeder for Chip Mounter - Google Patents

Abstract

PURPOSE: A tape feeder for a chip mounter is provided to reduce the waste of semiconductor chips in initial insertion of a carrier tape and to prevent shaking of a gate cover by forming a separate discharge path for cut cover vinyl. CONSTITUTION: A tape feeder for a chip mounter comprises a tape feeder, a gate member, a drive member, a cover unit, a vinyl guide(22), and a gate cover(20). The gate member transfers a carrier tape(2) provided from a reel(50). The drive member provides the driving force for transferring the carrier tape. The cover unit includes a cutting punch which divides the cover vinyl into the right and left sections in the longitudinal direction of the carrier tape. The vinyl guide guides the cut cover vinyl to move. The gate cover exposes the carrier tape in which the cover vinyl is cut to pick up a semiconductor chip.

Description

Tape Feeder for Chip Mounter

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder for a component mounter, and more particularly, a chip, preferably a semiconductor chip, and the like, are extracted from a carrier tape sealed in a plurality of electronic components in a row and sealed by a cover vinyl, and supplied to the mounter. It relates to tape feeder for component mounter to

In general, a component mounter (chip mounter) picks up and picks up an electronic component supplied from a feeder by vacuum suction to a nozzle of a head that picks and places a pick and places it on a substrate.

With the development of the electronics industry, printed circuit board mounting technology is also developing day by day, and the conventional printed circuit board surface mounting technology is completed by inserting a component into a through hole of a printed circuit board and then soldering it.

With the recent development of electronic technology, electronic components are becoming more compact and require high-density component mounting.In addition, the component mounting technology of printed circuit boards is not limited to the conventional through-hole method. The Surface Mounted Technology (SMT) method of mounting has become mainstream.

The conventional SMT surface mounter is installed to be spaced apart from the tape winding part and the tape winding part interlocked by a SMD (Surface Mounted Device) head and is coated on the tape transfer part and the upper surface of the tape to transfer the tape on which the parts are mounted. It comprises a vinyl recovery unit for recovering the vinyl to prevent separation of the transmission unit and a transmission unit for interlocking the tape winding unit and the vinyl recovery unit.

Here, the tape winding part has a structure in which a drive latch rotated in one direction by a push rod and a ratchet pole connected thereto are mounted on a tape feeder plate, and a tape on which a component is mounted is wound. It has a winding shaft.

The vinyl recovery part includes a vinyl winding reel having a winding gear rotatably installed on the bracket and a fixing lever fixed to one side of the vinyl winding reel, a rotating lever rotatably installed on the other side of the fixing lever, and a pinion installed on one side of the rotating lever. It consists of.

The transmission part is installed in the intermediate portion is connected to the transmission plate, one side of the link lever is connected to interlock with the lower end of the push rod of the tape winding portion and one end is connected to the end of the link lever by a hinge, the other end of the rotation of the vinyl recovery portion It is composed of a link lever that is installed to be linked to the lower end of the lever.

The feeder has been disclosed in various types such as a tape feeder, a chip feeder, a tray feeder, etc., but a tape feeder capable of supplying chips at high speed and in large quantities is widely used. Carrier tape is applied to such a tape feeder.

As shown in FIG. 1, the carrier tape 2 includes the semiconductor chip 8, which is an electronic component, in a storage space 6 formed at a predetermined interval on the base tape 4, and includes a cover vinyl ( 10) is taped, and is distributed in a form in which a transfer hole 12 spaced apart by a predetermined interval in the longitudinal direction of the tape is formed on one side.

The carrier tape is mainly used in a form in which the storage space between the electronic components is 2 mm or 4 mm apart.

The carrier tape locks the transfer hole by a tape feeder mounted in the component mounter, moves by a predetermined pitch, and the base tape and the cover vinyl are separated in stages, and the electronic components in the exposed storage space are sucked out by the suction nozzle. .

 In the conventional tape feeder having this structure, when the carrier tape is mounted on the tape feeder, the operator must separate the base tape and the vinyl directly, and the carrier tape is stored in the storage space in the process of connecting the carrier tape to the tape feeder due to the operator's carelessness. There is a problem that frequently occurs when the electronic component is lost.

In addition, the base tape is discharged to the front part, and the cover vinyl is separately discharged to the rear part, so that the cover vinyl discharge part may be entangled, and the parts may be lost, and the pitch may be changed due to the pulling of the cover vinyl. Accurate pick-up is difficult and there is a problem that must be reset.

On the other hand, the tape feeder uses an air cylinder, an electric stepping motor, or a servomotor using air pressure as a power source for driving a carrier tape, specifically a sprocket for transferring a carrier hole of the carrier tape to a predetermined pitch. When a conventional air cylinder is used as a driving source for transporting a carrier tape, noise is generated, and parts stored on the carrier tape, particularly semiconductor chips, etc. are detached due to air pressure shock and spring force reaction. Or an error may occur due to a change in pickup position, and even when an electric motor is used as a driving source, the sprocket is driven through a gear connection, and thus a pickup position is changed by a gear backlash, thereby causing an error.

The present invention cuts and separates the cover vinyl of the carrier tape containing the components provided in the component feeder tape feeder, that is, the electronic chip such as the semiconductor chip, to the left and right ends with respect to the longitudinal direction of the cover vinyl, and then tapes the component mounter tape. There is a problem to be solved to discharge to the outside with the base tape of the carrier tape through the back of the feeder.

In addition, the present invention is to enable the precise positioning of the sprocket by controlling the rotational position of the sprocket in frequency units by using an ultrasonic motor as a drive source of the sprocket for conveying the carrier tape and detecting the position of the sprocket with three sensors. There is a problem to be solved.

In addition, the present invention has a problem to be solved to facilitate the operation irrespective of the size of the reel to be able to freely adjust the height of the tape supply member in which the reel wound the carrier tape is accommodated.

In order to solve the above problems, the gate member constituting the tape feeder for the component mounter according to the present invention is installed in a direction in which the carrier tape is introduced and the carrier tape is supplied to one side thereof, the cover vinyl along the longitudinal direction of the carrier tape. A cover means provided with a cutting punch provided to cut and separate the left / right side of the; A vinyl guide provided at an upper end of the cover means to guide the cut cover vinyl to move; And a gate cover connected to the rear end of the cover means, passing through the cover means, and the carrier tape cut out of the cover vinyl is exposed to the outside so that the semiconductor chip can be picked up.

In addition, the drive member constituting the tape feeder for a component mounter according to the present invention is an ultrasonic motor; A motor pulley connected to one side of the ultrasonic motor and rotated by an ultrasonic motor; A sprocket which is fastened to the transfer hole of the carrier tape flowing into the gate member and transfers the carrier tape at a predetermined pitch; A sprocket poly connected to one side of the sprocket to rotate the sprocket; And a belt connected to each other on the sprocket pulley and the motor pulley to rotate the sprocket pulley according to the rotation of the motor pulley.

In addition, the support means which is connected to the body side of the tape feeder for the component mounter so that the tape supply member constituting the tape feeder for the component mounter according to the present invention adjacent to the gate member; A moving guide connected to one side of the supporting means and movable up and down along the supporting means; A plate connected to one side of the moving guide and moving up and down along the moving guide and providing a place where a reel in which a carrier tape is wound is received; And at least two stoppers provided on the moving guide and the plate, respectively, to fix the moving guide and the support means and to fix the moving guide and the plate.

The present invention simplifies the device by cutting the cover vinyl to the left and right ends with respect to its longitudinal direction and then discharging the cover vinyl to the outside together with the base tape of the carrier tape through the back of the tape feeder for the component mounter. By reducing the waste of the semiconductor chip at the time of insertion and by separately configuring the discharge path of the cut cover vinyl, it is possible to minimize the error of the semiconductor chip pickup by preventing the shaking of the gate cover due to the pulling phenomenon of the cover vinyl.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the following description is only for explaining the present invention specifically, and is not limited to the scope of the present invention by the following description.

1 is a view showing a carrier tape for a component mounter according to the present invention, Figure 2 is a front view of a tape feeder for a component mounter according to the present invention, Figure 3 is a rear view of a tape feeder for a component mounter according to the present invention, Figure 4 Is a block diagram showing a gate member and a driving member of the tape feeder for a component mounter according to the present invention, Figure 5 is a plan view showing a gate member and a driving member of the tape feeder for a component mounter according to the present invention, Figure 6 is Fig. 7 is a plan view showing the back of the gate member and the drive member of the tape feeder for component mounter, Fig. 7 is a plan view showing the back of the gate member and the drive member of the tape feeder for component mounter, Fig. 8 is a gate according to the present invention. 9 is a plan view showing the member, FIG. 9 shows the movement of the cover vinyl of the carrier tape conveyed to the gate member according to the invention; 10 is a block diagram showing a sensor portion of a tape feeder for a component mounter according to the present invention, Figure 11 is a block diagram showing a vinyl transport member of the tape feeder for a component mounter according to the present invention, Figure 12 is a component mounting machine according to the present invention It demonstrates together as a block diagram which shows the tape supply member of a tape feeder.

As shown in Figs. 1 to 12, the tape feeder for a component mounter according to the present invention is composed of a tape supply member 62, a gate member 16, and a drive member 14 from a macroscopic point of view.

Thus, the present invention will be described in more detail, the tape supply member 62 is for transporting the carrier tape 2 from the reel 50 installed in the tape feeder in front of the tape feeder for the component mounter mounted on the component mounter As such, any one may be used as long as it can perform such a role, but it is recommended that the support unit 52 be connected to one side of the body of the tape feeder for the component mounter so as to be adjacent to the gate member 16; A moving guide 54 connected to one side of the supporting means 52 and movable up and down along the supporting means 52; A plate 58 connected to one side of the moving guide 54 and moving up and down along the moving guide 54 to provide a place where the reel 50 in which the carrier tape 2 is wound is received; And at least two stoppers provided on the moving guide 54 and the plate 58 to fix the moving guide 54 and the support means 52, and to fix the moving guide 54 and the plate 58. 60) is preferable.

Here, the base 58 may be further provided between the plate 58 and the moving guide 54 so that the plate 58 may be more easily coupled with the moving guide 54.

In addition, at least two or more stoppers 60 are provided with a spring or the like as an elastic body (not shown) therein to move the stopper 60 when moving the moving guide 54 and / or the plate 58 up and down. When the desired movement position is reached after being separated from the moving guide 54 and / or the plate 58, the stopper 60 is fastened to the moving guide 54 and / or the plate 58 by the restoring force of the spring. Secure the guide 54 and / or plate 58.

Meanwhile, the carrier tape 2 according to the present invention allows the semiconductor chip to be supplied to the mounter by the tape feeder for the component mounter according to the present invention, and the carrier tape 2 commonly used in the art for this purpose. ) Is not particularly limited, but preferably a plate-shaped base tape 4 extending in the longitudinal direction, a storage space 6 providing a place where a semiconductor chip or the like is placed on the base tape 4, and the storage space. The semiconductor chip 8 seated in the space 6, the cover vinyl 10 and the base tape 4 provided on the upper end of the storage space 6 including the semiconductor chip 8 to seal the carrier tape 2. It consists of a conveying hole 12 spaced a predetermined interval in the longitudinal direction of the).

The gate member 16 according to the present invention is installed to guide the mounting and transport of the carrier tape 2, and may be used as long as the gate member 16 commonly used in the art for this purpose. However, preferably, the carrier tape 2 is introduced and connected in a direction in which the carrier tape 2 is supplied to one side thereof, and the left / right side of the cover vinyl 10 is along the longitudinal direction of the carrier tape 2. Cover means (18) provided with a cutting punch (not shown) provided to cut and separate the; A vinyl guide 22 provided at an upper end of the cover means 18 to guide the cut cover vinyl 10 to move; And a carrier tape 2 through which the cover vinyl 18 is cut and connected to the rear end of the cover means 18 and the cover vinyl 10 is exposed to the outside so that the semiconductor chip 8 can be picked up. It consists of a gate cover 20.

At this time, the cutting punch is separated from the base tape 4 and the cover vinyl 10 of the carrier tape 2 which is connected and supplied to the upper side of the cover means 18, preferably of the cover vinyl 10 The semiconductor chip 8 etc. seated on the carrier tape 2 by cutting the inner side surface adjacent to the transfer hole 12 formed in the left / right end, preferably left / right side along the longitudinal direction centering on the longitudinal direction. By separating the base tape 4 and the cover vinyl 10 so as to be exposed to the outside of the cover vinyl 10, any of the cutting punches commonly used in the art for this purpose may be used. Preferably, a blade for separating the base tape 4 and the cover vinyl 10 from one side in a direction in which the carrier tape 2 is supplied is formed.

In addition, the vinyl guide 22 according to the invention is intended to provide a discharge path of the cover vinyl 10 which is separated from the base tape 4 of the carrier tape 2, ie the cut cover vinyl 10. Any vinyl guide 22 commonly used in the present invention may be used. However, the rear surface facing the front of the tape feeder for the component mounter is preferably based on the carrier tape 2 flowing into the gate member 16. It is preferable to move the cut cover vinyl 10, and more preferably, to move the cut cover vinyl 10 described above diagonally with respect to the longitudinal direction of the carrier tape 2, in particular, It is preferable that the cylindrical shape is located diagonally with an acute angle.

On the other hand, the cut cover vinyl 10 of the tape feeder for the component mounter according to the present invention so that the cut cover vinyl 10 at the bottom of the position where the vinyl guide 22 is formed can be easily moved to the lower end and discharged. The vinyl guide means 42 and the vinyl transfer member 44 may be further provided on one side of the rear surface of the tape feeder for the component mounter.

Here, the vinyl guide means 42 may be formed with a groove 62 extending in the longitudinal direction so that the cover vinyl 10 cut therein may pass therethrough.

The vinyl transfer member 44 is provided at the bottom of the vinyl guide means 42 to forcibly discharge the cut cover vinyl 10 that has passed through the vinyl guide means 42, and for this purpose, In the case of the vinyl transport member 44 commonly used in the present invention is not particularly limited, but preferably, the first roller 46 and the second roller 48 are mutually disposed so that the cut cover vinyl 10 may be inserted and discharged. Is configured to rotate in engagement.

In this case, a plurality of protrusions may be formed on the outer circumferential surfaces of the first roller 46 and / or the second roller 48 to easily transport and discharge the cover vinyl 10, and optionally on the second roller 48. When a plurality of protrusions are formed, protrusion grooves corresponding to the protrusions of the second roller 48 are formed in the first roller 46 opposite to each other, so that the cut cover vinyl 10 discharged is drilled with the protrusions. Can be discharged.

The drive member 14 according to the present invention is for conveying the carrier tape 2, preferably by a predetermined pitch, and if any drive member 14 commonly used in the art for this purpose, Although it is also possible, it is recommended that the motor 30, preferably an ultrasonic motor 30 that can be driven in frequency units; A motor pulley 32 connected to one side of the ultrasonic motor 30 and rotating by the ultrasonic motor 30; A sprocket 24 fastened to the conveying hole 12 of the carrier tape 2 introduced into the gate member 16 to convey the carrier tape 2 at a predetermined pitch; A sprocket poly 26 connected to one side of the sprocket 24 to rotate the sprocket 24; And a belt 28 connected to the sprocket poly 26 and the motor poly 32 so as to rotate the sprocket poly 26 according to the rotation of the motor poly 32.

Here, the sprocket 24 has a disk shape, a plurality of protrusions that can be fastened to the transfer hole 12 of the carrier tape 2 on the outer peripheral surface is provided at regular intervals, the plurality of protrusions the present invention May be referred to separately as "tooth".

As a specific aspect, the driving member 14 according to the present invention may be further provided with a sensor unit 34 for measuring the rotational difference, that is, the rotational distance of the sprocket 24 on one side adjacent to the sprocket 24.

Here, when the sprocket 24 is rotated by the driving of the ultrasonic motor 30, the sensor unit 34 is for adjusting the rotation distance of the sprocket 24 finely by detecting the rotation distance, for this purpose For the sensor portion 34 commonly used in the art for this purpose is not particularly limited, but preferably composed of three sensors 36, 38, 40 for measuring the position of the outer peripheral surface of the sprocket 24.

In this case, when the three sensors 36, 38, and 40 are arbitrarily referred to as the first sensor 36, the second sensor 38, and the third sensor 40, the sprockets may be formed by the second sensor 38. 24) Detect the center of the teeth, the front end of the sprocket 24 teeth in the first sensor 36, the rear end of the sprocket 24 teeth in the third sensor 40 and then ultrasonically using the detected information By controlling the motor 30, it is possible to control the minute rotation of the sprocket 24.

Looking at the use of the tape feeder for mounting parts according to the present invention having the above-described configuration is as follows.

First, the reel 50 in which the carrier tape 2 in which the semiconductor chip 8 is accommodated is wound is installed on the plate 58 of the tape supply member 62. Then, one end of the carrier tape 2 is used for the component mounter. It is attached to the gate member 16 of a tape feeder, Preferably the tape feeder for component mounters.

Next, the cover means 18 and the gator cover 20 of the gate member 16 are opened to insert the carrier tape 2 wound on the reel 50 into the gate member 16 to insert the carrier tape 2. Sprockets 24 of the drive member 14 to be fastened to the feed hole 12 of the.

Here, the carrier tape 2 is preferably introduced into the gate member 16 at a position parallel to the gate member 16 in order to be easily supplied to the component feeder tape feeder, if the carrier tape 2 is wound When the size of the reel 50 is small and the heights of the gate member 16 and the reel 50 are different from each other, the stopper provided in the plate 58 of the tape supply member 62 with the reel 50 installed thereon. The height of the reel 50 and the height of the gate member 16 may be adjusted to be horizontal to each other by using the stopper 60 provided in the 60 or the moving guide 54.

Then, the motor 30, preferably the ultrasonic motor 30, is operated to rotate the belt 28, preferably the time belt 28, connected to the motor pulley 32 of the ultrasonic motor 30. The carrier tape 2 is transferred to the gate member 16 by rotating the sprocket poly 26 connected to the time belt 28 and the sprocket 26 connected to the sprocket poly 26 together.

At this time, the ultrasonic motor 30 allows the sprocket 24 to rotate by a distance set by the user according to the rotation distance of the sprocket 24 detected by the sensor unit 34.

Then, the carrier tape 2 introduced into the cover means 18 as the sprocket 24 rotates, the cover vinyl 10 is cut by a cutting punch provided on one side of the cover means 18 and the base tape ( 4) and the cover vinyl 10 are separated,

Here, the cut cover vinyl 10 is transferred to the rear surface of the tape feeder for the component mounter by the vinyl guide 22 provided on one side of the cover means 18, and then the groove 64 of the vinyl guide means 42 is removed. After passing through to the vinyl transfer member 44, the base tape 4 from which the vinyl cover 10 is separated is transferred to the gate cover 20 of the gate member 16, and then the mounter head is moved to the semiconductor chip at the pickup position. Pick up (8) and move it to the mounting machine.

At this time, the cover vinyl 10 passing through the groove 64 of the vinyl guide means 42 is folded in half when the size is conveyed to the vinyl transfer member 44, so that the first roller ( The cover vinyl 10 passing through the second roller 48 and the second roller 48 and the first roller 46 and the second roller 48 is discharged after the semiconductor chip 8 is picked up. ) Is discharged to the outside of the tape feeder for the component mounter.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive. The scope of the invention is indicated by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the invention. do.

1 shows a carrier tape for a component mounter according to the present invention;

2 is a front view of a tape feeder for a component mounter according to the present invention;

3 is a rear view of the tape feeder for a component mounter according to the present invention;

4 is a block diagram showing a gate member and a driving member of the tape feeder for a component mounter according to the present invention;

5 is a plan view showing a gate member and a driving member of the tape feeder for a component mounter according to the present invention;

6 is a block diagram showing the back surface of the gate member and the driving member of the tape feeder for a component mounter according to the present invention;

7 is a plan view showing the back of the gate member and the driving member of the tape feeder for a component mounter according to the present invention;

8 is a plan view showing a gate member according to the present invention;

9 is a view showing the movement of the cover vinyl of the carrier tape transferred to the gate member according to the present invention;

10 is a configuration diagram showing a sensor unit of a tape feeder for a component mounter according to the present invention;

11 is a block diagram showing a vinyl transfer member of the tape feeder for a component mounter according to the present invention;

12 is a block diagram showing a tape supply member of the tape feeder for a component mounter according to the present invention.

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

2: carrier tape 4: base tape

6: storage space 8: semiconductor chip

10: cover vinyl 12: transfer hole

14 drive member 16 gate member

18: cover means 20: gate cover

22: vinyl guide 24: sprocket

26: Sprocket Poly 28: Belt

30: motor 32: motor pulley

34 sensor unit 36 first sensor

38: second sensor 40: third sensor

42: vinyl guide means 44: vinyl transfer member

46: first roller 48: second roller

50: reel 52: support means

54: moving guide 56: base

58: plate 60: stopper

62: tape supply member 62: groove

Claims (11)

A tape supply member in which a semiconductor component is accommodated, and a reel in which a carrier tape is formed in which a plurality of transfer holes are formed at left and right ends thereof in a longitudinal direction; A gate member connected to the reel so as to be mounted and transported with a carrier tape provided from the reel; In the tape feeder for component mounter made of a drive member connected to the lower end of the gate member to provide a driving force for transferring the carrier tape, A cover means provided with a cutting punch in which the gate member is connected in a direction in which the carrier tape is introduced and the carrier tape is supplied to one side thereof, and the left and right sides of the cover vinyl are cut and separated along the longitudinal direction of the carrier tape; A vinyl guide provided at an upper end of the cover means to guide the cut cover vinyl to move; And a gate cover connected to the rear end of the cover means and passing through the cover means to expose the carrier tape from which the cover vinyl is cut out to allow the semiconductor chip to be picked up. The method of claim 1, A tape feeder for a component mounter, wherein a blade is formed in a direction in which a carrier tape is inserted into a cutting punch. The method of claim 1, And the vinyl guide has a cylindrical shape positioned diagonally with respect to the longitudinal direction of the carrier tape. The method according to any one of claims 1 to 3, The tape feeder for the component mounter, characterized in that the vinyl guide means and the vinyl transfer member is further provided so that the cover vinyl cut at the bottom of the position where the vinyl guide is formed can be easily moved to the bottom discharged. The method of claim 4, wherein Tape feeder for the component mounter, characterized in that the groove is extended in the longitudinal direction so that the cover vinyl (10) is cut in the vinyl guide means (42) therein. The method of claim 4, wherein The first roller having a plurality of protrusions formed on the outer circumferential surface and the second roller having a plurality of protrusion grooves corresponding to the protrusions of the first roller are formed to be engaged with each other so that the cover vinyl from which the vinyl transfer member is cut is inserted and discharged. Tape feeder for component mounter, characterized in that provided. The method of claim 1, The driving member is an ultrasonic motor; A motor pulley connected to one side of the ultrasonic motor and rotated by an ultrasonic motor; A sprocket which is fastened to the transfer hole of the carrier tape flowing into the gate member and transfers the carrier tape at a predetermined pitch; A sprocket poly connected to one side of the sprocket to rotate the sprocket; And a belt connected to each other to the sprocket pulley and the motor pulley to rotate the sprocket pulley 26 according to the rotation of the motor pulley. The method of claim 7, wherein Tape feeder for component mounter further comprises a sensor unit for measuring the rotation distance of the sprocket on one side adjacent to the sprocket. The method of claim 8,  And three sensors for measuring the position of the outer circumferential surface of the sprocket of the sensor unit. The method of claim 1, Supporting means connected to one side of the body of the tape feeder for the component mounter such that the tape supply member is adjacent to the gate member; A moving guide connected to one side of the supporting means and movable up and down along the supporting means; A plate which is installed at one side of the moving guide and moves up and down along the moving guide and provides a place where a reel in which a carrier tape is wound is received; And at least two stoppers provided on the moving guide and the plate, respectively, to fix the moving guide and the support means and to fix the moving guide and the plate. The method of claim 10,  Tape stopper for a component mounting machine, characterized in that the stopper is provided with an elastic body therein.

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