JPH10163684A - Parts supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parts supply device, which prevents the posture disturbance and the extraction of a part without using a board material covering a recessed opening, and which can satisfactorily take out the part. SOLUTION: Since the part P in a recessed part Et1, which is sent into a parts take-out position, is drawn to a place lower than the magnetic force of a magnet at a place lower than the part P and it can be adhered to the bottom in the recessed part Et1, the posture of the part P in the recessed part Et1 is securely prevented from being disturbed or extracted owing to static electricity or vibration, even if static electricity occurs or vibration is added. The part P sent to the parts take-out position can be kept into the recessed part Et1 in the stable posture and, therefore, the part can considerably satisfactorily be taken out by an adsorption nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device for supplying chip components using a carrier tape.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a carrier tape used in this kind of component supply apparatus. The carrier tape T includes an embossed tape Et and a cover tape C
The embossed tape Et has a recess Et1 for accommodating the chip-shaped component P in a predetermined posture and holes Et2 for positioning at the time of feeding the tape at regular intervals in the longitudinal direction. The cover tape Ct is smaller in width than the embossed tape Et, and is fixed to the upper surface of the embossed tape Et except for the concave portion Et1 and the hole Et2 so as to be peelable by a method such as crimping or welding.

In the recess Et1 of the embossed tape Et, chip-shaped components P having various shapes such as a flat prismatic shape, a prismatic shape, a cylindrical shape, and the like, for example, are represented by chip capacitors, chip inductors, chip resistors, and the like. One of the components P is accommodated and one is covered by the cover tape Ct.

[0004] As shown in FIG. 7, the supply of parts using the carrier tape T is performed by feeding the carrier tape T a predetermined distance and using a tape stripper Mp to cover the cover tape C.
By peeling off the opening t, the opened concave portion Et1 and the exposed component P are sent to the component removing position, and the component P in the concave portion Et1 is removed by the suction nozzle Ma. In the above-described component supply method in which the Ct is stripped to expose the component P, the posture of the component P in the concave portion Et1 sent to the component removal position is disturbed due to static electricity or vibration.
There is a problem that the component P comes out of the recess Et1.

In order to solve this problem, conventionally, as shown in FIG. 7 (a), a shutter plate Ms is provided to cover the opening of the concave portion Et1 sent to the component take-out position, and the component P is moved by the shutter plate Ms. When the component P is removed by the suction nozzle Ma, the shutter plate Ms is retracted forward from the component removal position to prevent interference with the suction nozzle Ma, as shown in FIG. 7B. There has been proposed a component supply device that avoids the above problem.

[0006]

However, in the conventional component supply device having the shutter plate Ms, since the opening of the recess Et1 is covered with the shutter plate Ms, the shutter plate Ms must be retracted from the component removal position. Recess Et1
Cannot be taken out by the suction nozzle Ms. In other words, since the suction nozzle Ms cannot perform component suction from the time when the concave portion Et1 is sent to the component extraction position to the time when the shutter plate Ms completely retracts from the component extraction position, it is necessary to retract the shutter plate Ms. Time becomes the loss time of component removal.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a component from being disturbed or coming out without using a plate material covering a concave opening, and to take out a component satisfactorily. It is an object of the present invention to provide a component supply device that can perform the above.

[0008]

According to the present invention, there is provided a carrier tape comprising an embossed tape in which a chip-like component is accommodated in a concave portion and a cover tape covering the concave portion of the embossed tape. In a component feeder in which the opened concave portion and the exposed component are fed to the component extracting position by peeling off the cover tape while feeding the carrier tape for a predetermined distance, and the component in the concave portion is extracted by a suction nozzle or the like, The main feature is that a magnet is arranged facing the lower surface or side surface of the concave portion at the position, and the exposed component is brought into close contact with the inner surface of the concave portion by the magnetic force of the magnet.

According to the present invention, the magnet is arranged opposite to the lower surface or the side surface of the concave portion at the component removal position, and the exposed component is brought into close contact with the inner surface of the concave portion by the magnetic force of the magnet. Even if is added, it is possible to prevent the components in the concave portion from being disturbed or slipping out as a cause thereof, and to hold the component sent to the component extracting position in the concave portion in a stable posture.

[0010]

1 to 5 show an embodiment of the present invention. First, an overall configuration of a component supply apparatus will be described with reference to FIGS. 1 and 2. FIG.

Incidentally, 1 in the figure is a frame, 2 is a tape guide, 3 is a feed pulley, 4 is a tape feed mechanism, 5
Is a peeling roller, 6 is a take-up reel, 7 is a magnet unit, T
Is a carrier tape. Since the configuration of the carrier tape T is the same as that shown in FIG. 6, the same reference numerals are used and the description is omitted.

The frame 1 is for supporting each component device to be described later, and has a plurality of positioning pins 1a on its lower surface which are inserted into and engaged with positioning holes provided in a mounting partner (not shown).

The tape guide 2 has a guide groove 2a having a width and a depth corresponding to the outer shape of the concave portion Et1 of the embossed tape Et.
On the upper surface, and is provided above the frame 1. The tape guide 2 receives the concave portion Et1 in the guide groove 2a and guides the carrier tape T linearly while supporting the lower surface of the embossed tape Et except the concave portion Et1. A guide hole 2b for guiding the magnet unit 7 back and forth and up and down is provided on the front side surface of the tape guide 2.
Is provided.

The feed pulley 3 has, at the center, a groove (not shown) having a width and a depth corresponding to the outer shape of the concave portion Et1 of the embossed tape Et, and a hole Et of the embossed tape Et.
A plurality of pins (not shown) to be inserted into and engaged with 2 are provided at equal intervals in the circumferential direction. The carrier tape T is wound around the feed pulley 3, and the hole Et of the embossed tape Et is formed.
2 is engaged with a peripheral pin of the feed pulley 3.

The tape feed mechanism 4 includes a ratchet 4a coaxially fixed to one side of the feed pulley 3 and a feed pulley 3
A feed lever 4b rotatably mounted coaxially on one side surface, a pawl plate 4c rotatably mounted on the feed lever 4b and engaging with a valley of a ratchet wheel 4a, and a feed lever 4b
Relay lever 4d with one end pivotally attached to
An operating lever 4e rotatably mounted on the side surface of the frame 1 and the other end of the relay lever 4d rotatably mounted thereon; and a spring member 4f for urging the claw plate 4c counterclockwise in the drawing. And a spring member 4g for urging the operation lever 4e counterclockwise in the figure, and a stopper pin 4h for defining a return position of the operation lever 4e.

In the tape feed mechanism 4, the operation lever 4
e, by pressing the operating portion downward against the spring biasing force (see the white arrow in FIG. 1), and rotating the feed lever 4b counterclockwise in the figure by a predetermined angle via the relay lever 4d. As a result, the ratchet wheel 4a and the feed pulley 3 which moves integrally with the ratchet wheel 4a are rotated counterclockwise in the same angle view by the pawl plate 4c, and the carrier tape T is moved by a distance corresponding to the rotation angle, that is, the component removal. It can be advanced to the position by the distance that the subsequent recess Et1 moves.

The peeling roller 5 is used to peel off the cover tape Ct from the carrier tape T, and is provided continuously with the frame 1 via a bracket (not shown), and is a tape which is located behind the concave portion Et1 moved to the component extracting position. The carrier 2 is disposed on the guide 2 in a direction perpendicular to the tape feeding direction and with its peripheral surface facing the upper surface of the carrier tape T with a slight gap therebetween.

The take-up reel 6 winds up the cover tape Ct peeled off from the carrier tape T, is connected to the frame 1 via the leg member 6a, and
It is arranged above. The take-up reel 6 is intermittently rotated clockwise in the figure in synchronization with the feed of the carrier tape T by a drive mechanism (not shown).
The cover tape Ct having a length corresponding to the feed amount is wound up.

The magnet unit 7 has a unit main body 7a formed of a ferromagnetic material such as iron and has a bottomed rectangular tube shape, and one of N and S poles faces the carrier tape T in an internal cavity of the unit main body 7a. And a rare-earth permanent magnet 7b in the shape of a rectangular parallelepiped arranged in the rectangular shape. On one side of the unit body 7a, an operation piece 7c inserted into the guide hole 2b of the tape guide 2 and protruding outside is integrally formed.

The magnet unit 7 includes a carrier tape T
, And can be moved between a component extracting position and a tape pre-peeling position along the guide hole 2b of the tape guide 2. The driving mechanism (not shown) feeds the carrier tape T. In accordance with, the robot moves forward by the same distance as the feed amount and then moves downward, and after sucking the components, returns from the same position to the position before tape peeling.

Next, the operation of the above-described component supply device will be described with reference to FIGS. FIG. 2A shows the recessed portion Et of the embossed tape Et sent to the component removal position.
1 corresponds to the state after the part P is taken out, and the part P
Is located at a predetermined pre-peeling position. The magnet 7b of the magnet unit 7 is opposed to the lower surface of the concave portion Et1 at a position before the tape stripping through a small gap, and the component P in the concave portion Et1 is drawn downward by the magnetic force of the magnet 7b. It is in close contact with the bottom surface in the recess Et1.

At the time of component supply, as shown in FIG.
From the standby state of FIG. 2A, the cover tape Ct is peeled off while feeding the carrier tape T forward by a predetermined distance.
The opened concave portion Et1 and the exposed component P are sent to the component removal position. In addition, in accordance with the feeding of the carrier tape T, the magnet unit 7 is moved forward from the standby position shown in FIG. In this process, since the positional relationship between the magnet unit 7 and the concave portion Et1 does not change, the components P in the concave portion Et1 are moved by the magnetic force of the magnet 7b until the component P moves from the position before tape stripping to the component removal position. The state of being in close contact with the bottom surface in Et1 is maintained.

Next, after the opened concave portion Et1 and the exposed part P are sent to the component extracting position together with the magnet unit 7, the magnet unit 7 is moved downward from the forward position as shown in FIG. The part P is separated from the lower surface of Et1, and the adhesion force due to the magnetic force of the magnet 7b of the component P in the concave part Et1 is reduced or released.

The component P in the concave portion Et1 sent to the component extracting position is extracted by the vertically movable suction nozzle Ma when the magnet unit 7 moves downward from the forward position or after moving downward.

After the component P in the concave portion Et1 sent to the component extracting position is extracted, the magnet unit 7 is moved backward from the lowered position in FIG. 4 in parallel with the carrier tape T as shown in FIG. Then, the magnet unit 7 is moved upward to return the magnet unit 7 to the standby position shown in FIG.

As described above, according to the above-described component supply device, the component P in the recess Et1 sent to the component removal position is
Can be attracted downward by the magnetic force of the magnet 7b underneath, and can be brought into close contact with the bottom surface in the concave portion Et1, so that even if static electricity is generated or vibration is applied, the cause of the component P in the concave portion Et1 is It is possible to reliably prevent the posture from being disturbed or slipping out, and to hold the component P sent to the component removal position in the concave portion Et1 in a stable posture, so that component removal by the suction nozzle Ma is extremely excellent. Can be done.

Further, since the magnet unit 7 is moved forward in parallel with the carrier tape T in accordance with the feeding of the carrier tape T, the concave portion Et1 at the position before the tape is removed.
There is an advantage that the same component adhesion action as described above can be exerted until the component P moves to the component extraction position, and the posture of the component P in the concave portion Et1 can be prevented from being disturbed or coming off.

Further, after the opened concave portion Et1 and the exposed component P are sent to the component extracting position together with the magnet unit 7, the magnet unit 7 is moved downward to be separated from the lower surface of the concave portion Et1, and the components in the concave portion Et1 are removed. Since the adhesion force due to the magnetic force of the P magnet 7b is reduced or released, the influence of the magnetic force on the component P taken out by the suction nozzle Ma can be avoided, and the component can be taken out smoothly without any load.

In the above-described embodiment, the magnet is positioned directly below the concave portion when the magnet unit moves forward, but the magnet position with respect to the concave portion is shifted in any of the front, rear, right, and left directions. With this arrangement, it is possible to simultaneously position components using the side surfaces in the concave portions.

In the above-described embodiment, the magnet unit is moved downward from the forward position and separated from the lower surface of the concave portion to reduce or cancel the component adhesion force to the inner surface of the concave portion due to the magnetic force of the magnet. Even if a magnetic shield made of a ferromagnetic material is inserted between the magnet unit in the advanced position and the lower surface of the concave portion without moving the magnet unit downward, the component adhesion force to the inner surface of the concave portion due to the magnetic force of the magnet is similarly maintained. In this case, the same operation as described above can be performed simply by moving the magnet unit back and forth.
The effect is obtained.

Further, in the above-described embodiment, an example in which the magnet is disposed below the concave portion of the carrier tape has been described.
Even when the magnet is arranged so as to face the side surface of the concave portion, the same operation and effect can be obtained by bringing the components inside the concave portion into close contact with the side surface inside the concave portion by the magnetic force of the magnet.

[0032]

As described in detail above, according to the present invention,
The components in the recess that are sent to the component removal position can be brought into close contact with the inner surface of the recess by the magnetic force of the magnet. It is possible to reliably prevent the component from coming off, hold the component sent to the component removal position in a stable posture in the concave portion, and thereby perform the component removal by the suction nozzle or the like extremely well.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a component supply device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the component supply device shown in FIG. 1 and a perspective view of a magnet unit.

FIG. 3 is an operation explanatory diagram of the component supply device shown in FIG. 1;

FIG. 4 is an operation explanatory view of the component supply device shown in FIG. 1;

FIG. 5 is an operation explanatory diagram of the component supply device shown in FIG. 1;

FIG. 6 is a perspective view of a carrier tape.

FIG. 7 is an operation explanatory view of a conventional component supply device.

[Explanation of symbols]

T: Carrier tape, Et: Embossed tape, Et1 ...
Recess, Ct: cover tape, P: component, 1: frame,
Reference numeral 2: tape guide, 3: feed pulley, 4: tape feed mechanism, 5, peeling roller, 6, take-up reel, 7, magnet unit, 7b: magnet.

Claims (2)

[Claims] 1. A carrier tape comprising an embossed tape in which a chip-shaped component is accommodated in a recess and a cover tape covering the recess of the embossed tape, and the cover tape is peeled off while feeding the carrier tape a predetermined distance. In a component supply device in which the opened concave portion and the exposed component are sent to a component extracting position, and the component in the concave portion is extracted by a suction nozzle or the like, a magnet is arranged facing the lower surface or side surface of the concave portion at the component extracting position, A component supply device, wherein the exposed component is brought into close contact with the inner surface of the concave portion by the magnetic force of the magnet. 2. The apparatus according to claim 1, wherein the magnet is configured to be movable along a carrier tape between a component take-out position and a tape pre-stripping position, and the magnet is moved from the tape pre-stripping position to the feeding of the carrier tape. The component supply device according to claim 1, wherein the component supply device is moved to a takeout position.