KR20060008520A - Carrier Tape Feeder - Google Patents

Abstract

According to the present invention, a feeder of a carrier tape is disclosed. The carrier tape feeder is installed on one side of the frame and the frame, and has a tooth inserted into the carrier transfer hole on the circumferential surface thereof, the carrier transfer part including a main sprocket for transferring the carrier intermittently, and rotatable on the frame. At least one auxiliary sprocket having teeth disposed on an outer circumferential surface thereof, the tape recovery unit provided on the other side of the frame to collect the tape separated from the carrier, and the carrier conveyance unit. It is provided with a power source. According to the disclosed carrier tape feeder, the electronic component stored in the carrier can be picked up stably at the correct position by limiting the movement in the carrier width direction.

Description

Carrier-tape Feeder

1 is a perspective view showing a carrier tape,

2 is a plan view showing a portion of a conventional carrier tape feeder,

3 is a perspective view showing one side of the carrier tape feeder according to the first embodiment of the present invention;

4 is a perspective view showing the other side of the carrier tape feeder shown in FIG.

5 is a side view of the main sprocket shown in FIG. 3;

FIG. 6 is a side view of the auxiliary sprocket shown in FIG. 3;

7 is a perspective view showing a carrier tape feeder according to a second embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

2 carrier tape 3 carrier

4: tape 100: frame

110: carrier tape supply reel 111: first transfer guide

112: second transfer guide 113: third transfer guide

120 carrier carrier 121 main sprocket

130: first tape recovery unit 140: second tape recovery unit                 

150: tape recovery unit 160: cover

161: shutter 180,181,182: auxiliary sprocket

185,186,187: Rotation axis of auxiliary sprocket

The present invention relates to a carrier tape feeder, and more particularly, to a carrier tape feeder having an improved structure so as to restrict movement in the carrier width direction so that electronic components stored in the carrier can be picked up stably at an accurate position.

The carrier tape feeder strips the tape from the carrier tape containing the integrated circuit chip and supplies the integrated circuit chip to the suction nozzle at regular intervals, thereby allowing the suction nozzle to pick up the integrated circuit chip and mount it on the circuit board. It is a parts supply device.

1 shows a carrier tape. In general, a product such as the integrated circuit chip 5 overcomes the weakness of foreign substances such as dust, and as shown in the figure to facilitate its handling, the storage space (3b) formed insulated from each other in the carrier (3) It is separated and stored in a line, and is distributed in a state wound on the reel (10). The storage space 3b is sealed by a tape 4, and a plurality of transfer holes 3a formed at predetermined intervals are formed at one side of the carrier 3 to transfer the carrier 3.

Figure 2 is a plan view showing a part of the carrier tape feeder according to the prior art. Referring to the figure, the carrier 3 is conveyed by inserting the teeth of the rotating drive sprocket 21 into the conveying hole 3a, and the tape 4 (see FIG. 1) is conveyed to the carrier 3. Is separated from the carrier 3 before reaching the pick-up position PC. In the pick-up position PC, the integrated circuit chip 5 exposed by opening the shutter 61 is picked up by a suction nozzle (not shown) and moved to the circuit board. The integrated circuit chip 5 is disposed at the correct position. If not, the problem that the adsorption rate due to the adsorption nozzle is lowered occurs. The position of the carrier 3 is limited in the width direction to some extent by the cover 60, but in order not to interfere with the conveyance of the carrier 3, the width W1 of the cover 60 is determined by the width of the carrier 3. Since it is formed wider than the width W2, the clearance between the carrier 3 and the cover 60 is spaced apart. In particular, in the case of a micro integrated circuit chip, a paper carrier having a small hardness is used. In this case, when the driving sprocket pushes the transfer hole, permanent deformation such as tearing of the transfer hole may occur. Due to the deformation of the carrier or the clearance between the carrier and the cover, the carrier is transported with a certain positional deviation in the width direction. In this case, the adsorption rate of the integrated circuit chip is lowered and the integrated circuit chip is separated from the adsorption nozzle. A problem arises in which parts supply becomes impossible.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a carrier tape feeder having an improved structure so that electronic components can be picked up stably at an accurate position by limiting movement in a carrier width direction.

In order to achieve the above object and other objects, the carrier tape feeder of the present invention,

frame;

A carrier conveying part installed on one side of the frame, the carrier conveying part including a main sprocket for intermittently conveying a carrier by having a tooth inserted into a carrier conveying hole on a circumferential surface thereof;

At least one auxiliary sprocket rotatably mounted to the frame and having teeth formed on the outer circumferential surface of the contact surface of the carrier;

A tape recovery unit installed at the other side of the frame to recover the tape separated from the carrier; And

And a power source for providing power to the carrier transfer unit.

Here, the main sprocket and the auxiliary sprocket are preferably installed on the frame surface opposite each other.

In one embodiment of the invention, the primary and secondary sprockets are coupled on the same axis of rotation through the frame.

In another embodiment of the present invention, the main sprocket and the auxiliary sprocket are coupled on different rotating shafts respectively provided on opposite frame surfaces, and the auxiliary sprocket rotates according to the transport of the carrier.

Next, with reference to the accompanying drawings for the preferred embodiments of the present invention will be described in detail.

3 and 4, the first embodiment of the present invention will be described in detail. Figure 3 is a perspective view showing one side of the carrier tape feeder, Figure 4 is a perspective view showing the other side of the carrier tape feeder.

The carrier tape feeder is largely a frame 100, a carrier conveying unit 120 mounted on the frame 100 to convey the carrier 3, and a tape for recovering the tape 4 separated from the carrier 3. The recovery part 150 is provided.

The carrier tape 2 is conveyed by the carrier conveying part 120 (see FIG. 4), and the tape 4 has the tape recovering part 150 before the carrier 3 reaches the pick-up position of the integrated circuit chip. Separated by). Due to the separation of the tape 4, the integrated circuit chip 5 (see FIG. 1) is transported to a pickup position in a state in which the integrated circuit chip 5 (see FIG. 1) is accommodated in the receiving space 3b (see FIG. 1) of the carrier 3, where the integrated circuit chip is Picked up by a suction nozzle (not shown) and moved to another position. The separated tape 4 is wound around the tape recovery reel 131 or transferred to the outside by the tape recovery gears 141 and 142.

The frame 100 functions to support components other than the frame 100 of the carrier tape feeder, and components other than the frame 100 are mounted directly or indirectly on the frame 100.

The frame 100 is provided with a first conveyance guide 111 and a second conveyance guide 112, and these guides 111 and 112 are formed on the carrier tape 2 wound on the carrier tape supply reel 110. It serves to guide upward. Third conveying guides 113 are formed on the upper side of the frame 100, and the carrier tape 2 is guided to the lower side of the cover 160.

The cover 160 coupled to the upper side of the frame 100 serves to guide the carrier 3 moving downward, and to guide the shutter 161 slidably coupled to the upper side. The shutter 161 is slidably coupled to the cover 160 to prevent exposure of the integrated circuit chip in order to prevent the integrated circuit chip accommodated in the carrier 3 from being detached to the outside while the tape 4 is peeled off. And expose the integrated circuit chip only when picked up by the suction nozzle.

On the cover 160, a turning slit 160 ′ is formed, and the tape 4 separated from the carrier 3 passes through the turning slit 160 ′, and the conveying direction is changed so that the tape recovery part on the other side of the cover 160 is moved. Is moved to 150.

Referring to FIG. 4, the carrier transfer unit 120 receives power from a main sprocket 121 and a power source (not shown) to transfer a transfer force to the carrier 3, and provides a power to the main sprocket 121. The transmission member 122 is provided. The main sprocket 121 is mounted on the frame 100 to intermittently transport the carrier 3. Referring to FIG. 5, the circumferential surface of the main sprocket 121 is disposed at a transfer hole 3a of one side of the carrier 3. A tooth 121a to be inserted is formed. The main sprocket 121 receives power from a power source (not shown) through the power transmission member 122 and transfers the carrier 3 to a constant pitch. Here, the power transmission member 122 may be configured as a link mechanism, the power source, for example, may be composed of a pneumatic cylinder (not shown).                     

Referring to FIG. 3, an auxiliary sprocket 180 that rotates in accordance with the transfer of the carrier 3 is mounted on the opposite surface of the frame 100 on which the main sprocket is installed. The auxiliary sprocket 180 is rotatably coupled to the rotation shaft 185 and rotates according to the transfer of the carrier 3. Referring to FIG. 6, a tooth 180a formed on the circumferential surface of the carrier 3 is rotated. The other side (in Fig. 1 refers to the other side opposite the one side formed with the transfer hole 3a with the integrated circuit chip 5 therebetween), the carrier 3 moves or shakes in the width direction To prevent them. It is preferable that the teeth 180a of the auxiliary sprockets 180 have sharp wedge-shaped ends so that the contact surfaces of the carriers 3 moving at high speed are easy to dig.

Meanwhile, one side of the carrier 3 is in contact with the circumferential surface of the main sprocket 121, and the other side of the carrier 3 is in contact with the circumferential surface of the auxiliary sprocket 180, so that the carrier 3 is maintained in a horizontal state. In order to be conveyed, it is preferable that the circumferential surface of the main sprocket 121 and the circumferential surface of the auxiliary sprocket 180 in contact with the carrier 3 maintain the same level.

The auxiliary sprocket 180 may be coupled to the rotating shaft 125 (see FIG. 4) for transmitting rotational force to the main sprocket 121 and may rotate together with the main sprocket 121. That is, the rotation shaft 125 to which the main sprocket 121 is coupled protrudes to the opposite side through the frame 100, and the auxiliary sprocket 180 is coupled to the protruding rotation shaft 185. In this case, the rotating shaft 125 of the main sprocket 121 and the rotating shaft 185 of the auxiliary sprocket 180 become opposite sides of the same member. Since the auxiliary sprocket 180 is rotated at the same rotational speed as the main sprocket 121, the carrier 3 receives the feed force from both sides can be more stably transferred.

By inserting one side portion and the other side portion of the carrier 3 into the main sprocket 121 and the auxiliary sprocket 180, the widthwise movement of the carrier 3 is restricted and the positional error is reduced. This allows the adsorption nozzle to accurately adsorb the integrated circuit chip and improves the adsorption rate.

Meanwhile, the tape 4 that has passed through the redirection slits 160 ′ is recovered through the first tape recovery unit 130 or the second tape recovery unit 140 as necessary.

The first tape recovery unit 130 winds the tape 4 separated from the carrier 3 on the tape recovery reel 131. The first tape recovery unit 130 includes a power recovery member (not shown) for receiving power from the tape recovery reel 131 and a power source (not shown) to rotate the tape recovery reel 131. The power transmission member may be formed, for example, of a link mechanism.

The second tape recovery part 140 discharges the tape 4 separated from the carrier 3 to the outside. The second tape recovery unit 140 rotates in a reverse direction to each other, and includes a first recovery gear 141 and a second recovery gear 142 for discharging the tape 4 therebetween, and from a power source (not shown). It includes a power transmission member (not shown) for receiving the power of the rotating the first recovery gear 141. As the first recovery gear 141 rotates, the second recovery gear 142 rotates in the reverse direction, and the tape 4 passes between the recovery gears 141 and 142 and is discharged to the outside of the carrier tape feeder.

Meanwhile, the carrier transfer unit 120 and the tape transfer unit 150 may receive power from one power source, and the supplied power may be transferred to the carrier transfer unit 120 and the tape transfer unit 150 through respective power transfer members. Can be.

7 shows a carrier tape feeder according to a second embodiment of the present invention. As can be seen in the figure, two auxiliary sprockets 181 and 182 are installed at different positions along the transport path of the carrier 3. Reference numerals 186 and 187 denote rotation axes to which the respective auxiliary sprockets 181 and 182 are coupled. In this embodiment, two auxiliary sprockets 181 and 182 are installed along the conveying path, thereby reducing errors in the width direction that may occur during the conveying process of the carrier 3 and enabling a smooth supply of parts.

In the present invention, of course, the auxiliary sprocket need not be particularly limited to the number thereof as long as it is provided on the transport path of the carrier. Although not shown, two or more such sprockets may be installed on one rotation shaft.

According to the carrier tape feeder of the present invention, by limiting the movement of the carrier in the width direction, the electronic components accommodated in the carrier can be picked up stably at the correct position. Therefore, the lowering of the component adsorption rate of the pickup means is prevented, and a smooth supply of components can be provided.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (4)

frame; A carrier conveying part installed on one side of the frame, the carrier conveying part including a main sprocket for intermittently conveying a carrier by having a tooth inserted into a carrier conveying hole on a circumferential surface thereof; At least one auxiliary sprocket rotatably mounted to the frame and having teeth formed on the outer circumferential surface of the contact surface of the carrier; A tape recovery unit installed at the other side of the frame to recover the tape separated from the carrier; And And a power source for providing power to the carrier transfer unit. The method of claim 1, And the main sprocket and the sub sprocket are respectively installed on opposite frame surfaces. The method of claim 1, And the main sprocket and the auxiliary sprocket are coupled on the same axis of rotation through the frame. The method of claim 1, The main sprocket and the auxiliary sprocket are coupled on different rotating shafts respectively provided on opposite frame surfaces, and the auxiliary sprocket rotates according to the transport of the carrier.

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