JP6883737B2 - Parts supply equipment - Google Patents

Description

The present invention relates to a component supply device that supplies components held on a carrier tape in a component mounting device.

In a component mounting device for mounting electronic components on a substrate, a tape feeder that supplies components held on a carrier tape is often used as a component supply device (see, for example, Patent Document 1). In the prior art shown in Patent Document 1, a tape supply unit that pulls out a carrier tape from a supply reel that stores a carrier tape in a wound state and supplies the carrier tape, and a carrier tape that is drawn out from the tape supply unit are pitch-fed to supply parts. An example of a tape feeder composed of a tape feed unit that feeds to a position is disclosed. With this configuration, the tape supply unit and the tape feed unit can be separated when the supply reel is replaced or the cover tape is collected, which has an advantage that workability is improved.

Japanese Unexamined Patent Publication No. 2-205398

By the way, in recent years, the supply form of carrier tape in the tape feeder has been diversified, and different equipment configurations are required for the tape feeder according to this supply form. For example, when switching the supply reel, a tape splicing method in which a new carrier tape (successor tape) succeeding to the end of the previously mounted carrier tape (preceding tape) is connected by a splicing tape, or a tape splicing method is performed without performing tape splicing. In reality, a plurality of tape supply forms coexist, such as a so-called autoloading method in which a carrier tape is automatically additionally supplied by setting a tape in a tape feeder.

For this reason, the production site may be obliged to have a plurality of types of tape feeders having different functions, and there has been a demand for equipment having versatility capable of supporting different tape supply forms. In the above-mentioned prior art, the tape supply unit and the tape feed unit are separable, but the configuration shown in this prior art improves workability when replacing the supply reel containing the carrier tape. However, the versatility of the tape feeder itself from the above-mentioned viewpoint cannot be improved.

Therefore, an object of the present invention is to provide a parts supply device capable of supporting different tape supply forms and having excellent versatility.

The component supply device of the present invention includes a first unit that pitch-feeds components to a component suction position, and a second unit that stores the components and supplies a carrier tape covered with a cover tape to the first unit. The first unit is a carrier by rotating the sprocket in a state where the carrier tape is guided to the component suction position and the sprocket feed claw is meshed with the sprocket hole of the carrier tape. The second unit has a first unit sprocket drive mechanism unit that sends the tape to the component suction position, and a component exposing means that exposes a part of the cover tape. The carrier tape is inserted into the second unit, and the carrier tape is inserted. The second unit has a tape traveling path for sending the sprocket to the first unit, and the second unit is detachably attached to the first unit.

According to the present invention, it is possible to realize a parts supply device which can correspond to different tape supply forms and has excellent versatility.

Top view of the component mounting device in which the component supply device according to the embodiment of the present invention is used. Partial sectional view of the component mounting device in which the component supply device according to the embodiment of the present invention is used. The configuration of the carrier tape to which the component supply apparatus of one Embodiment of this invention is supplied, and the explanatory view of the cover tape peeling Explanatory drawing of unit structure in component supply apparatus of one Embodiment of this invention Schematic diagram of the configuration of the tape feed unit (first unit) in the component supply device according to the embodiment of the present invention. Structural explanatory view of the tape supply unit (second unit) in the component supply device according to the embodiment of the present invention. Configuration explanatory view of the tape supply unit (third unit) in the component supply device of one embodiment of the present invention. Functional explanatory view of the component supply device according to the embodiment of the present invention Functional explanatory view of the component supply device according to the embodiment of the present invention

Next, an embodiment of the present invention will be described with reference to the drawings. First, with reference to FIGS. 1 and 2, the configuration and function of the component mounting device 1 in which the component supply device (tape feeder) of the present embodiment is used will be described. The component mounting device 1 has a function of mounting components such as a semiconductor chip on a substrate, and FIG. 2 partially shows a cross section taken along the line AA in FIG. In the following description, the parts supply device will be referred to as a tape feeder.

In FIG. 1, a substrate transfer mechanism 2 is arranged in the center of the base 1a in the X direction (board transfer direction). The board transport mechanism 2 transports the board 3 carried in from the upstream side, and positions and holds the board 3 on a mounting stage set for executing the component mounting work. Parts supply units 4 are arranged on both sides of the board transfer mechanism 2, and a plurality of tape feeders 5 are mounted in parallel on each component supply unit 4. The tape feeder 5 pitch-feeds the carrier tape containing the components in the tape feeding direction, that is, in the direction from the outside of the component supply unit 4 toward the substrate transport mechanism 2, so that the components by the mounting head of the component mounting mechanism described below are used. Supply parts to the suction position.

On the upper surface of the base 1a, a Y-axis moving beam 7 having a linear drive mechanism is arranged at one end in the X direction, and the Y-axis moving beam 7 is similarly provided with a linear drive mechanism. Two X-axis moving beams 8 are coupled so as to be movable in the Y direction. A mounting head 9 is mounted on each of the two X-axis moving beams 8 so as to be movable in the X direction. The mounting head 9 is a multi-unit type head provided with a plurality of holding heads, and as shown in FIG. 2, a suction nozzle 9a that sucks and holds parts and can be individually moved up and down at the lower end of each holding head. Is installed.

By driving the Y-axis moving beam 7 and the X-axis moving beam 8, the mounting head 9 moves in the X direction and the Y direction. As a result, the two mounting heads 9 suck and hold the parts from the parts suction positions of the tape feeder 5 of the corresponding parts supply unit 4 by the suction nozzle 9a and take them out, and mount the board 3 positioned on the board transfer mechanism 2. Transfer to a point and mount. The Y-axis moving beam 7, the X-axis moving beam 8, and the mounting head 9 constitute a component mounting mechanism 10 for transferring and mounting the components to the substrate 3 by moving the mounting head 9 holding the components.

A component recognition camera 6 is arranged between the component supply unit 4 and the substrate transfer mechanism 2. When the mounting head 9 from which the component is taken out from the component supply unit 4 moves above the component recognition camera 6, the component recognition camera 6 captures and recognizes the component held by the mounting head 9. A substrate recognition camera 11 is mounted on the mounting head 9 which is located on the lower surface side of the X-axis moving beam 8 and moves integrally with the mounting head 9. When the mounting head 9 moves, the board recognition camera 11 moves above the board 3 positioned by the board transfer mechanism 2, and images and recognizes the board 3. In the component mounting operation on the substrate 3 by the mounting head 9, the mounting position is corrected in consideration of the component recognition result by the component recognition camera 6 and the substrate recognition result by the board recognition camera 11.

As shown in FIG. 2, a carriage 12 in which a plurality of tape feeders 5 are previously mounted on the feeder base 12a is set in the component supply unit 4. By clamping and fixing the feeder base 12a to the fixed base provided on the base 1a, the position of the carriage 12 is fixed in the component supply unit 4. The carriage 12 holds a supply reel 13 that stores the carrier tape 14 holding the parts in a wound state. The carrier tape 14 drawn from the supply reel 13 is pitch-fed by the tape feeder 5 to the component suction position 5a by the suction nozzle 9a.

Next, the configuration of the carrier tape 14 and the cover tape peeling process of the carrier tape 14 in the tape feeder 5 will be described with reference to FIG. As shown in FIG. 3A, the carrier tape 14 is mainly a base tape 14a in which component pockets 14b for accommodating component P to be supplied are provided at a predetermined pitch. The base tape 14a is formed with sprocket holes 14c at a predetermined pitch to which the feed claws of the sprocket mesh with each other to feed the carrier tape 14. Further, a cover tape 14d is attached to cover the component pocket 14b in the range where the component pocket 14b is provided on the upper surface of the base tape 14a.

In the process of sending the carrier tape 14 to the component suction position 5a, the cover tape 14d is peeled from the base tape 14a to expose the component P in order to enable the component P to be taken out from the component pocket 14b. Will be executed. As a method for peeling the cover tape, the tape feeder 5 shown in the present embodiment uses the method shown in FIG. 3 (b).

That is, the method of peeling the cover tape 14d by the peeling blade 27 provided by the component exposing means 26 (see FIG. 5B) provided in the vicinity of the component suction position 5a is shown. That is, in the path for feeding the carrier tape 14 to the component suction position 5a, the peeling blade 27 is arranged on the upper surface of the carrier tape 14 in a posture in which the cutting edge is directed in the tape feeding direction (arrow a). The cutting edge of the peeling blade 27 is located on the upper surface of the carrier tape 14 at a position where the bonding interface between the cover tape 14d and the base tape 14a can be peeled off, and the carrier tape 14 is tape-fed downstream (in the direction of arrow a). The area of the cover tape 14d that covers the component pocket 14b is partially peeled off, and the cover tape 14a is folded on the base tape 14a. As a result, the component P in the component pocket 14b is exposed, and the component can be taken out at the component suction position 5a.

Next, the unit configuration of the tape feeder 5 in the present embodiment will be described with reference to FIG. The tape feeder 5 shown in the present embodiment is different from a normal tape feeder configured as a single facility, and the tape feeder 5 is configured by two units described below. That is, as shown in FIG. 4A, the tape feeder 5 mounted on the feeder base 12a is supplied with a tape feed unit 51 having a function of pitch-feeding the carrier tape 14 holding the component P to the component suction position 5a. The carrier tape 14 drawn from the reel 13 (see FIG. 2) is detachably attached to the tape supply unit 52 that supplies the carrier tape 14 to the tape feed unit 51.

In the present embodiment, as shown in FIG. 4B, the tape feed unit 51 is a first unit 51A having a common configuration, and is a second unit 52 as a tape supply unit 52, depending on the supply form of the carrier tape 14. One of the two types, the unit 52A and the third unit 52B, is selected and attached to the first unit 51A to form the tape feeder 5, and the tape feeder 5 is attached to the feeder base 12a. That is, the second unit 52A can be replaced with the third unit 52B that supplies the carrier tape 14 to the first unit 51A.

Next, the configuration of each unit constituting the tape feeder 5 will be described with reference to FIGS. 5, 6, and 7. First, the first unit 51A as the tape feed unit 51 will be described with reference to FIG. A mounting locked portion 20a is provided at the downstream end of the main body frame 20 constituting the main body of the first unit 51A. The mounting locked portion 20a includes a second unit mounting locking portion 30a (second unit 52A shown in FIG. 6) and a third unit mounting locking portion 40a (FIG. 7) provided in the tape supply unit 52 to be attached and detached. It has an engaging shape corresponding to the third unit 52B) shown.

The mounting locked portion 20a is engaged with the second unit mounting locking portion 30a and the third unit mounting locking portion 40a, and the attachment / detachment operation levers 32 and 42 provided in each of these mounting locking portions are clamped. By the fixed operation, the first unit 51A is mechanically integrated with the second unit 52A and the third unit 52B to form the tape feeder 5. At the same time, connectors for wiring connection (not shown) are fitted to each other, and these units are electrically connected to each other.

The main body frame 20 is provided with a first unit tape traveling path 21 that communicates from the tape introduction port 21a opened in the mounting locked portion 20a to the end on the downstream side. The first unit tape travel path 21 (pitch feed tape travel path) guides the carrier tape 14 supplied from the tape supply unit 52 and introduced from the tape introduction port 21a to the component suction position 5a. The tape detection sensor 23 detects the carrier tape 14 in the first unit tape travel path 21.

A first unit sprocket drive mechanism unit 22 (pitch feed sprocket drive mechanism unit) having sprocket 23A and 23B arranged in series is arranged on the downstream side of the first unit tape travel path 21. Feed claws (not shown) are formed on the outer circumferences of the sprockets 23A and 23B at a constant pitch, and the drive of the sprockets 23A and 23B is controlled by the feeder control board 24. The control operation by the feeder control board 24 is performed according to the operation input from the operation panel 25 arranged on the upper surface of the main body frame 20. The first unit sprocket drive mechanism unit 22 intermittently rotates the sprocket 23A and 23B in a state where the sprocket holes 14c of the carrier tape 14 are engaged with the feed claws formed on the outer circumferences of the sprocket 23A and 23B at a constant pitch. , The carrier tape 14 is pitch-fed to the component suction position 5a.

The component exposing means 26 is detachably mounted on the upper surface of the first unit tape traveling path 21 in the vicinity of the component suction position 5a. As shown in FIG. 5 (b), the component exposing means 26 includes a peeling blade 27 (see FIG. 3 (b)) and is a carrier tape fed along the first unit tape traveling path 21 (arrow c). When the 14 passes through the peeling blade 27 in a predetermined posture, a part of the cover tape 14d is peeled off by the cutting edge of the peeling blade 27, whereby the component P is exposed in the component exposing means 26 located at the component suction position 5a. Will be done.

Next, with reference to FIG. 6, the second unit 52A as the tape supply unit 52 detachably attached to the above-mentioned first unit 51A to form the tape feeder 5A (FIG. 8) will be described. In FIG. 6, the downstream end of the main body frame 30 constituting the main body of the second unit 52A has a shape corresponding to the mounting locked portion 20a provided in the first unit 51A (FIG. 5) to be attached and detached. In this case, it is the second unit mounting locking portion 30a. A mounting locking portion 30b is provided on the lower surface of the upstream end of the main body frame 30 so as to project downward. When the tape feeder 5 to which the second unit 52A is attached to the first unit 51A is attached to the feeder base 12a, the attachment locking portion 30b is engaged with the attachment end portion of the feeder base 12a.

The main body frame 30 is provided with a second unit tape traveling path 31 that communicates from the introduction port 31a opened at the upstream end to the discharge port 31b opened at the downstream second unit mounting locking portion 30a. .. In the second unit tape travel path 31 (supply tape travel path), the carrier tape 14 unwound from the supply reel 13 is inserted through the introduction port 31a, and the carrier tape 14 is inserted into the first unit via the discharge port 31b. It has a function to send to 51A. Unlike the other tape supply units 52, the second unit 52A has a function of simply passing the carrier tape 14 that is fed from the supply reel 13 and supplied to the first unit 51A.

Next, with reference to FIG. 7, a third unit 52B as a tape supply unit 52 that is detachably attached to the first unit 51A described above will be described. The third unit 52B is attached to the first unit 51A provided with the component exposing means 26 to form the tape feeder 5B (FIG. 9). The downstream end of the main body frame 40 constituting the main body of the third unit 52B is a third shape-engaged portion corresponding to the mounting locked portion 20a provided in the first unit 51A (FIG. 5) to be attached and detached. It is a unit mounting locking portion 40a. A mounting locking portion 40b is provided on the lower surface of the upstream end of the main body frame 40 so as to project downward. When the tape feeder 5 to which the third unit 52B is attached to the first unit 51A is attached to the feeder base 12a, the attachment locking portion 40b is engaged with the attachment end portion of the feeder base 12a.

The main body frame 40 is provided with a third unit tape traveling path 41 that communicates from the introduction port 41a opened at the upstream end to the discharge port 41b opened at the downstream third unit mounting locking portion 40a. .. In the third unit tape travel path 41 (supply tape travel path), the carrier tape 14 unwound from the supply reel 13 is inserted through the introduction port 41a, and the carrier tape 14 is inserted into the first unit via the discharge port 41b. It has a function to send to 51A.

A third unit sprocket drive mechanism unit 43 having a sprocket 44 is arranged above the third unit tape traveling path 41 in the main body frame 40. Feed claws (not shown) are formed on the outer circumference of the sprocket 44 at a constant pitch, and the drive of the sprocket 44 is controlled by the feeder control board 24 of the first unit 51A connected to the third unit 52B. The third unit sprocket drive mechanism unit 43 rotates the sprocket 44 in a state where the feed claw of the sprocket 44 is meshed with the sprocket hole 14c of the carrier tape 14, so that the carrier tape 14 is moved along the third unit tape traveling path 41. And convey it to the first unit 51A. A tape detection sensor 45 is arranged on the downstream side of the third unit tape travel path 41, and the tape detection sensor 45 detects the carrier tape 14 in the third unit tape travel path 41.

Below the third unit sprocket drive mechanism unit 43, a stopper unit 47 having a function of switching between prohibition and permissible tape feeding of the carrier tape 14 by a stopper 47a is arranged. The stopper unit 47 stops the carrier tape 14 inserted from the introduction port 41a by the stopper 47a. Then, by releasing the stopper 47a at a predetermined tape feed allowable timing, the tape is supplied to the first unit 51A of the carrier tape 14. Further, the third unit 52B includes a shutter mechanism unit 48 having a function of allowing the carrier tape 14 to be inserted from the introduction port 41a only under predetermined conditions. Further, a tape removal prevention mechanism 49 having a function of preventing the carrier tape 14 once inserted from being dropped is provided.

Next, the usage state and function of the tape feeder 5 having the above configuration will be described with reference to FIGS. 8 and 9. First, with reference to FIG. 9, a tape feeder 5A configured by mounting the second unit 52A on the first unit 51A will be described. The carrier tape 14 in the tape feeder 5A is attached by manually feeding the carrier tape 14 inserted from the introduction port 31a to the component exposing means 26 on the downstream side.

Then, a part of the cover tape 14d is peeled off by the peeling blade 27 arranged in the component exposing means 26 and folded back (FIG. 3B), so that the component P housed in the component pocket 14b in the take-out opening 26a. Is exposed, and the component P is taken out by the suction nozzle 9a of the mounting head 9. If the already mounted carrier tape 14 (1) runs out in the process of continuously taking out the component P, the end of the carrier tape 14 (1) and the new carrier tape 14 (2) A splicing operation is performed in which the head portion is spliced and connected with a tape (see the splicing portion S). The tape for joining the already attached carrier tape 14 (1) and the new carrier tape (2) is attached to a portion that does not affect the peeling of the cover tape 14d by the component exposing means 26.

Next, with reference to FIG. 9, the tape feeder 5B configured by mounting the third unit 52B on the first unit 51A will be described. The carrier tape 14 in the tape feeder 5B is attached by feeding the carrier tape 14 inserted from the introduction port 41a to the component exposing means 26 on the downstream side by the third unit sprocket drive mechanism unit 43. Then, a part of the cover tape 14d is peeled off by the peeling blade 27 arranged in the component exposing means 26 and folded back (FIG. 3B), so that the component P housed in the component pocket 14b in the take-out opening 26a. Is exposed, and the component P is taken out by the suction nozzle 9a of the mounting head 9.

In the process of continuously taking out the component P, if the component of the already mounted carrier tape 14 (1) is about to run out, a new carrier is stacked on the upper surface of the carrier tape 14 (1) from the introduction port 41a. Insert the tape 14 (2). When it is detected that the component P of the carrier tape 14 (1) has been consumed and the component replenishment timing has come, the carrier tape 14 (2) in the standby state by the stopper 47a is transferred to the component exposing means 26 on the downstream side. It is taped.

In the above-described embodiment, the second unit is used as a fixing means for fixing the tape feeders 5A and 5B configured by mounting the second unit 52A and the third unit 52B on the first unit 51A to the feeder base 12a. An example is shown in which the mounting locking portions 30b and 40b provided on the 52A and the third unit 52B are fitted and mounted on the feeder base 12a, respectively, but the configuration of the fixing means of the tape feeders 5A and 5B is arbitrary, and the first The 1st unit 51A, the 2nd unit 52A, and the 3rd unit 52B may be provided with a positioning mechanism, a clamp mechanism, an electrical connection mechanism, and the like.

As described above, in the tape feeder 5 shown in the present embodiment, the first unit 51A as the tape feeding unit 51 that pitch-feeds the carrier tape 14 holding the component P to the component suction position 5a, and the carrier tape 14 The tape feed unit 51 includes a second unit 52A and a third unit 52B as a tape supply unit 52 for supplying the tape feed unit 51, and the tape feed unit 51 guides the carrier tape 14 to the component suction position 5a. And a sprocket drive mechanism for pitch feeding that feeds the carrier tape 14 to the component suction position 5a by rotating the sprocket with the sprocket feed claws meshed with the sprocket holes 14c of the carrier tape 14 to supply the tape. The unit 52 has a supply tape traveling path into which the carrier tape 14 is inserted and sends the carrier tape 14 to the tape feed unit 51, and the tape supply unit 52 is detachably attached to the tape feed unit 51. doing.

As a result, the second unit 52A and the third unit 52B can be selectively used according to the supply form of the carrier tape 14 used, and a parts supply device capable of supporting different tape supply forms and having excellent versatility can be provided. It can be realized.

The component supply device of the present invention has the effect of being able to support different tape supply modes and realize a versatile component supply device, and supplies components held by carrier tape in the component mounting device. Useful in the field.

1 Parts mounting device 4 Parts supply section 5,5A, 5B Tape feeder 10 Parts mounting mechanism 14 Carrier tape 14c Sprocket hole 14d Cover tape 21 1st unit tape runway 22 1st unit sprocket drive mechanism 26 Parts exposure means 27 Peeling blade 31 2nd unit tape runway 41 3rd unit tape runway 43 3rd unit sprocket drive mechanism P parts

Claims (4)

It is provided with a first unit for pitch-feeding parts to a component suction position and a second unit for storing parts and supplying a carrier tape covered with a cover tape to the first unit.
The first unit is
A first unit tape traveling path that guides the carrier tape to the component suction position, and
A first unit sprocket drive mechanism unit that feeds the carrier tape to the component suction position by rotating the sprocket with the sprocket feed claws meshed with the sprocket holes of the carrier tape.
It has a component exposing means for exposing a part of the cover tape, and has a component exposing means.
The second unit is
It has a second unit tape runway into which the carrier tape is inserted and sends the carrier tape to the first unit.
The second unit is detachably attached to the first unit and is attached to the first unit .
The second unit can be replaced with a third unit that supplies the carrier tape to the first unit.
The third unit is
A third unit tape traveling path into which the carrier tape is inserted and the carrier tape is sent to the first unit, and
It has a third unit sprocket drive mechanism unit that feeds the carrier tape to the first unit by rotating the sprocket in a state where the feed claw of the sprocket is meshed with the sprocket hole of the carrier tape.
The third unit is electrically connected to the first unit via a connector, and is detachably attached to the first unit .
The third unit sprocket drive mechanism unit is a component supply device that drives the sprocket based on control from the control unit of the first unit. The parts supply device according to claim 1.
The third unit further includes a stopper for stopping the tape feeding of the carrier tape.
A component supply device having a stopper unit that releases the stopper and allows the tape feed. The parts supply device according to claim 1.
The third unit is a component supply device having a shutter mechanism that allows insertion of the carrier tape under predetermined conditions. The parts supply device according to claim 1.
The third unit is a component supply device having a dropout prevention mechanism for preventing the carrier tape inserted into the third unit from falling off.

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