JPH0946088A - Supply equipment of chip electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform reel exchange without interruting an automatic electronic components mounting equipment, by automatically moving only the supply equipment having an empty reel, where all chip electronic components are used, as far as the reel change position, and enabling reel change before components are supplied from the new component supply equipment. SOLUTION: When a reel 22 becomes empty and, at the same time, chip electronic components to be supplied to a component supply stand 24 are all used, a detection means 50 detects the state and outputs a signal. By the signal from the detection means 50, an electromagnetic valve 62 is changed over, and an operation rod 61 of a cylinder 60 ascends. A component supply means 20 is pressed by the energizing force of an energizing means 30, and is moved as far as the reel change position capable of reel change. Thus the component supply means 20 moves as far as the reel change position. The reel which has been empty is replaced with a new reel by a worker or an automatic change equipment. Thereby the reel change is enabled without interrupting an automatic electronic component mounting equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying tapped chip-shaped electronic components, and in particular, when there are no chip-shaped electronic components to be supplied, a reel for winding a tape automatically moves to a replacement position. The present invention relates to a device for supplying chip-shaped electronic components.

[0002]

2. Description of the Related Art An electronic component automatic mounting apparatus is used for automatically mounting electronic components on a printed circuit board. This electronic component automatic mounting apparatus is provided for the upper and lower sides of the mounting head and XY
Electronic components are automatically mounted on the printed circuit board on the table by moving in the direction. The electronic component automatic mounting device is provided with a component supply device for supplying the electronic component to the suction nozzle at the tip of the mounting head. Especially, the electronic components to be mounted are leadless transistors, diodes and resistors. In the case of a so-called chip-shaped electronic component such as a capacitor, a supply reel for winding the chip-shaped electronic component taped on the component supply device is provided.

In such a component supply device, when there are no more chip-shaped electronic components to be supplied, the electronic component automatic mounting device is stopped and a supply device in which a large number of components have been exhausted from the supply device group. Was removed, the empty reel was replaced with a new reel, and the reel was again inserted and arranged in the supply device group.

[0004]

During the above-described reel replacement, it is very difficult to replace only an empty reel because a large number of component supply devices are arranged in close proximity to each other. Even if it can be replaced, an operator's hand or the like enters the inside of the supply device, so that the area sensor (safety device) for emergency stop provided for safety is activated. Therefore, when replacing the reel, the electronic component automatic mounting device itself is first stopped to cut the area sensor, and then the replacement work is performed.

As described above, in the conventional feeder for stopping the electronic component automatic mounting device during the reel replacement work, the electronic component automatic mounting device is stopped every time the reel is replaced, and the operating rate of the electronic component automatic mounting device is reduced. Was low. Especially,
In an electronic component automatic mounting device that has a plurality of mounting heads and a large number of supply devices are arranged side by side, it is often necessary to replace the reels in the supply device, and the electronic component automatic mounting device stops each time. However, there is a problem that the effect of providing a plurality of mounting heads is weakened.

The present invention has been made in view of the above circumstances, and automatically moves only a supply device having a reel that is empty of chip-shaped electronic parts to a reel exchange position, and then the parts are replaced. An object of the present invention is to provide a chip-shaped electronic component supply device capable of exchanging the reel without stopping the electronic component automatic mounting device by making the reel exchangeable until the component is supplied from the supply device. .

[0007]

In order to achieve the above object, a chip-shaped electronic component supply apparatus of the present invention is an apparatus for sequentially feeding tape-shaped chip-shaped electronic components from a reel and supplying the same. While constantly urging the reel replacement position, while the chip-shaped electronic component is present, the urging force is suppressed to stop the supply device at the component supply position to enable and supply the chip-shaped electronic component. When the chip-shaped electronic component to be used up is exhausted or when it is detected that the remaining amount is reduced, the suppression of the biasing force is released and the supply device is moved to the reel exchange position.

[0008] Specifically, in a device for sequentially feeding and feeding the tape-shaped chip-shaped electronic components from a reel, the device includes a base and the reel, and a component supply position and a reel exchange position are provided on the base. Between the parts supply means, a biasing means for urging the parts supply means toward the reel exchange position side, a locking means for stopping the parts supply means at the parts supply position, and the chip shape. It is configured to include a detection unit that detects when the electronic components are exhausted or that the remaining amount is low, and a release unit that releases the locking of the locking unit by the operation of the detection unit.

According to the chip-shaped electronic component supplying apparatus having such a structure, when the chip-shaped electronic components to be supplied are exhausted, the reel automatically moves to the replacement position. Next, the reels can be replaced before the component is supplied from the component supply device without stopping the process.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an overall view showing an embodiment of a chip-shaped electronic component supply device. As shown in FIG. 1, the chip-shaped electronic component supply device according to this embodiment includes a base 10 fixed to the device body 1, a component supply means 20 that moves on the base 10, and the component. A biasing means 30 for biasing the supply means 20 in one direction (reel exchange side), a locking means 40 for stopping the movement of the component supply means 20, and a means 50 for detecting the presence or absence or the remaining amount of the chip-shaped electronic component. And a releasing means 60 which operates in response to a signal from the detecting means 50 to release the locking means 40.

As shown in FIG. 2, the base 10 has a sliding portion 11 having a T-shaped groove 11a formed in the upper portion thereof along the longitudinal direction, and is mounted on the main body 1 of the apparatus which is installed side by side with the automatic mounting machine. It is fixed by the guide pin 12 and the fixing screw 13.
As shown in FIG. 1, the fixing screw 13 is a hexagon socket head cap screw and is tightened by a hexagon wrench 14. The hexagon wrench 14 is normally biased upward by a spring 15 so as not to separate from the fixing screw 13 and interfere with the base 10, and is engaged with the fixing screw 13 only when pushed down against the spring 15. To meet.

As shown in FIG. 2, the component supply means 20 has a sliding portion 21 in which a T-shaped protrusion 21a is formed in the lower portion, and the T-shaped protrusion 21a slides on the base 10. It is movable in the longitudinal direction by engaging with the T groove 12a formed in the moving portion 11. The component supply means 20 conveys the chip-shaped electronic component, which is taped and wound around the reel 22, to the component supply table 24 with the cover tape peeled off from the reel 22.

Here, referring to FIG. 1, the component supply means 20
Will be described briefly. In FIG. 1, 23 is a sprocket wheel, and the tape 100 pulled out from a reel 23 provided at the back of the apparatus is pitch-wise adjusted.
Transfer in the direction of the arrow. The sprocket wheel 23
The peripheral surface has engaging projections (not shown) at regular intervals, and the engaging holes (not shown) of the tape 100 are engaged with the engaging projections to intermittently rotate clockwise.

Reference numeral 24 denotes a parts supply table, which is the tape 100 that has been transferred to just before reaching the sprocket wheel 23.
It is installed to support the lower part of the. The suction nozzle 3 provided at the tip of the mounting head 2 is in the form of a chip stored in the recess of the carrier tape 100a (the cover tape 100b is peeled off by a peeling claw described later) of the tape 100 on the component supply table 24. The electronic component 100d descends toward the electronic component 100d, and the chip-shaped electronic component 100d is placed on the component supply table 24.
Rises after adsorbing.

Reference numeral 25 denotes a peeling claw formed with a sharp tip, which is integrated with the guide member 26, and peels off the cover tape 100b and the carrier tape 100a inside after the cover tape 100b is peeled off. The chip-shaped electronic component 100d is prevented from popping out. Cover tape 10
0b is the carrier tape 10 due to the tip of the peeling claw 25.
It is peeled off from 0a and folded back to the winding roller 27 side. The folded cover tape 100b is wound around the winding roller 27.

The component supply means 20 having such a structure
A biasing means 30 is provided between the base 10 and the base 10 (or the apparatus main body 1). That is, a spring accommodating base 31 is installed at the end of the base 10 on the mounting head side (right side in the drawing), and a compression spring 32 is disposed in the spring accommodating base 31. One end of this compression spring 32 is in contact with the side end of the spring storage base 31, and the other end is in contact with the side wall of the sliding portion 21 of the component supply means 20. Therefore, the component supply means 20 is always urged to the reel 22 side (left side in FIG. 1) by the compression spring 32. Reference numeral 33 is a guide rod for preventing the compression spring 32 from coming off from the spring accommodating base 31, and is provided so as to project from the side end of the spring accommodating base 31 toward the component supply means 20.

A locking means 40 is provided on the side of the base 10 opposite to the side on which the biasing means 30 is provided. As shown in FIG. 1 and FIG.
A shaft 41 rotatably supported at 0, a lever 42 to which the shaft 41 is fixed substantially in the center, a stopper 43 rotatably attached to one end of the lever 42, and a space between the shaft 41 and the base 10. And a tension spring 44 that constantly extends one end of the lever 42 upward. And
The stopper 43 is adapted to be projected and retracted from the bottom of the T groove 11a by a guide hole 45 penetrating the sliding portion 11 of the base 10.

On the other hand, on the side wall of the sliding portion 21 of the component supply means 20 on the reel side, the locking piece 4 is provided so as to correspond to the locking means 40.
6 are provided. This locking piece 46 has a T-shaped groove 11a at the tip.
When the stopper 43 of the locking means 40 projects into the T-shaped groove 11a, the locking piece 46 is locked by the stopper 43.
As a result, the movement of the entire component supply unit to the reel side is suppressed. When the stopper 43 is retracted into the guide hole 45, the T-shaped protrusion 21 of the component supply means 20.
a can move in the T groove 11a without any trouble.

The other end of the lever 42 (stopper 43
On the opposite side), an actuator 60 is arranged as a releasing means including a cylinder or the like that pushes up the other end of the lever 42 against the urging force of the tension spring 44. The vertical movement of the operating rod 61 in the cylinder or the like 60 is
This is performed by switching the electromagnetic switching valve 62.

An optical sensor 50 as a detecting means is arranged near the upper part of the component supply table 24 so as not to interfere with the mounting head 2 and the like. This optical sensor 50 is used in the component supply stand 24.
It is detected that the chip-shaped electronic component 100d sent to the device is exhausted or the remaining amount is small, and a signal is output based on the detection result to switch the electromagnetic switching valve 62 to raise the cylinder or the like 60.

In this embodiment, the detecting means 50 and the releasing means are provided at positions separated from each other, so that the releasing means is activated by the detection signal.
When they are arranged close to each other, the releasing means may be directly connected to the mechanical detecting means.

Reference numeral 70 denotes an area sensor, which is arranged on the upper part of the component supply device and operates as a safety device which operates when carelessly inserting a hand or the like and immediately stops the entire electronic component mounting device. ing.

The chip-shaped electronic component supply apparatus having the above structure operates as follows. Parts supply means 20
When the tape 100 on which the chip-shaped electronic component is taped is wound around the reel 22, the component supply means 20 is pushed into the component supply position against the urging force of the urging means 30, and the operating rod 61 of the actuator 60 is also pushed. Is lowered (state in FIG. 1). In this state, the stopper 43 of the locking means 40 makes the tension spring 4
Since it is projected into the T-shaped groove 11a by the action of 4, the locking piece 46 of the component supply means 20 is reliably locked. Therefore, the component supply unit 20 does not move even when being biased by the biasing unit 30, and is stopped at the component supply position. As a result, the mounting head 2 of the electronic component automatic mounting apparatus moves up and down, and the chip-shaped electronic components sequentially supplied from the reel 22 are taken out from the component supply base 24 and sequentially mounted on a printed circuit board or the like.

In this way, the supply of chip-shaped electronic components continues, the reel 22 becomes empty, and the component supply table 24
When there is no chip-shaped electronic component to be supplied to the detector, the detection means 50 detects this and outputs a signal. The electromagnetic switching valve 62 is switched by the signal from the detection means 50, and the operating rod 61 of the cylinder or the like 60 is raised. As a result, the lever 42 rotates clockwise about the shaft 41 against the urging force of the tension spring 44, pulls the stopper 43 into the guide hole 45, and retracts the stopper 43. To cancel.

As a result, the component supply means 20 is pushed by the urging force of the urging means 30 and moves to the reel exchange position (left side in FIG. 1) where the reel 22 can be exchanged.
In this way, when the component supply means 20 moves to the reel replacement position, the empty reel 22 is replaced with a new reel by a worker or an automatic exchanger.

After confirming the replacement of the reel, the component supply means 20 is pushed again to the component supply position (right side in FIG. 1) against the urging force of the urging means 30. At this time, the signal from the detection means 50 is reset and the stopper 43 is biased in the projecting direction from the guide hole 45, so that the stopper 43 is automatically guided when the component supply means 20 reaches the component supply position. It projects from the hole 45 and locks the locking piece 46 to prevent the component supply means 20 from moving to the reel exchange position side.

According to the chip-shaped electronic component supply apparatus of the present embodiment in which the reels are replaced in this manner,
Since the area sensor 70 does not operate when the reel is replaced, the reel can be replaced without stopping the electronic component automatic mounting device.

The present invention is not limited to the above embodiment, but includes various modifications within the scope of the invention. For example, the biasing means 30 is replaced by the compression spring, An actuator such as an air cylinder may be used, or a tension spring may be arranged on the reel side. In the case of using an air cylinder or the like, the air cylinder or the like itself functions as a locking (suppressing) means, and a switching valve or the like that supplies air or the like to the cylinder functions as a releasing means.

Further, as the detecting means for detecting the presence or absence of the chip-shaped electronic component, not only the above-mentioned optical sensor but also a mechanical sensor such as a micro switch may be used. Further, by combining the sensor and the counter, Alternatively, the number of supplied chip-shaped electronic components may be measured and the component supply means may be retracted when a predetermined number of components are supplied.

Further, as a locking means, a stopper 43
May be directly operated by an actuator such as an air cylinder, or mechanically linked with the detection means 50.

[0031]

As described above, according to the chip-shaped electronic component supply apparatus of the present invention, an empty reel can be replaced with a new reel without stopping the electronic component automatic mounting apparatus. The operation rate of the automatic component mounting device is significantly improved. In particular, the effect is great in the case of an electronic component automatic mounting device having a plurality of mounting heads and a large number of chip-shaped electronic component supply devices in proportion thereto.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of a chip-shaped electronic component supply device of the present invention.

FIG. 2 is an enlarged sectional view of a part (II) of FIG.

FIG. 3 is an enlarged view of an engagement means of an embodiment of a chip-shaped electronic component supply device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base 11 Sliding part 11a T groove 20 Component supply means 21 Sliding part 21a Projection 24 Component supply stand 30 Energizing means 40 Locking means 50 Detecting means 60 Release means

Claims (2)

[Claims] 1. A device for sequentially feeding and feeding taped electronic components from a reel, wherein the feeding device is constantly biased toward a reel exchange position side, and the biasing force is applied while the chip electronic components are present. When the supply of chip-shaped electronic components is enabled by stopping the supply device at the component supply position and the supply of chip-shaped electronic components to be supplied is exhausted or when it is detected that the remaining amount is small, A supply device for a chip-shaped electronic component, wherein the supply device is moved to a reel exchange position after the suppression of the biasing force is released. 2. An apparatus for sequentially feeding taped chip-shaped electronic components from a reel and feeding the reels, comprising a base and the reel, and being movable on the base between a component supply position and a reel exchange position. Component supplying means, urging means for urging the component supplying means toward the reel exchange position, locking means for stopping the component supplying means at the component supplying position, and the chip-shaped electronic component disappeared. A supply device for a chip-shaped electronic component, comprising: a detection unit that detects when or when the remaining amount is low, and a release unit that releases the locking of the locking unit by the operation of the detection unit.