JPH11214889A - Tape feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape feeder capable of simply and quickly attaching and removing a long plate and securely locking the long plate in fear of possible dropping caused by vibration during high speed operation. SOLUTION: A slide plate 27 is laminated on a first long plate 11. A first hole 22 having a first slit 23 is formed on the first long plate 11, and a second hole 29 having a second slit 31 is formed on the slide plate 27. The second slit 31 has the components (a hole 31a and a hole 31b) being orthogonal each other. A pin 34 of the projection 32 is inserted into the first slit 23 and the second slit 31, and locked double in an orthogonal direction by sliding the slide plate 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder provided in an electronic component mounting apparatus.

[0002]

2. Description of the Related Art An electronic component mounting apparatus picks up an electronic component provided in a parts feeder with a transfer head and mounts it on a substrate. Tape feeders are often used as parts feeders. The tape feeder derives an electronic component storage tape (hereinafter simply referred to as a tape) from a supply reel, picks up electronic components stored in a tape pocket by a transfer head, and mounts the electronic components on a substrate.

[0003] The supply reel is held by a reel holder. In recent years, the diameter of the supply reel has tended to increase.
Large supply reels with a diameter of 40 cm or more have also appeared.

A tape feeder supplies an electronic component to a transfer head while moving at a high speed by a moving table device. When the tape feeder moves at a high speed, the supply reel rattles violently. Therefore, the reel holder is provided with means for holding the supply reel. The holding means includes a first long plate and a second long plate which sandwich the supply reel from the left and right, and prevents the supply reel held by the reel holder 5 from being left and right to prevent the supply reel from rattling. I have to.

[0005]

When the tape wound around the supply reel runs out of stock, the empty supply reel must be removed from the reel holder, and a new supply reel must be set on the reel holder. The first long plate constituting the holding means has a detachable structure so that such a supply reel can be replaced.

This kind of holding means is required to (1) be able to easily and quickly attach / detach the long plate, and (2) not to easily drop the long plate due to vibration during the high-speed movement of the tape feeder. You. In order to satisfy the requirement (1), the conventional tape feeder holding means has a simple configuration in which a hole formed in the end of the first long plate is engaged with the protrusion on the supply reel side. The structure was adopted.

However, with such a simple structure,
The requirement of (1) to easily and quickly attach and detach the holding means can be satisfied, but the requirement of (2) cannot be sufficiently satisfied. There has been a problem that the supply reel is released from the holding state by the holding means and vibrates violently, and in the worst case, the supply reel is dropped from the reel holder and the supply of the tape becomes impossible.

Therefore, according to the present invention, it is possible to easily and quickly attach and detach the long plate of the holding means for holding the supply reel, and to firmly lock the long plate so that the long plate does not fall off due to vibration during high-speed operation. It is an object of the present invention to provide a tape feeder capable of performing the following.

[0009]

A tape feeder according to the present invention comprises a base, a reel holder for holding a supply reel around which an electronic component housing tape is wound, and a clamping unit for clamping the supply reel held by the reel holder. Means for feeding the electronic component storage tape derived from the reel holder to the front of the base at a pitch, wherein the holding means comprises a first tape mounted on the reel holder. One end of the first long plate is rotatably mounted on one side of the reel holder so as to be vertically rotatable, and the other end is connected to the other side of the reel holder. The attachment means is detachably mounted via attachment means, and the engagement means comprises a slide plate slidably superimposed on an end of the first long plate and a projection provided on the other side of the reel holder. This projection is provided at the end of the first long plate. And a second hole in which the projection is fitted is opened in the slide plate, and a first slit is continuously provided in the first hole. A second slit having a component orthogonal to the first slit is connected to the second hole, and the projection is fitted to a portion where the first slit and the second slit overlap. Locked together.

Preferably, the first slit portion is opened in a vertical direction intersecting the length direction of the first long plate, and the second slit portion is formed in the second hole portion. The vertical component has a vertical component orthogonal to the longitudinal direction of the first long plate and a horizontal component connected to the tip of the vertical component, and the protrusion is formed by combining the horizontal component with the horizontal component. The first slit portion is fitted and locked to the overlapping portion.

According to the tape feeder having the above structure, the first
The attachment and detachment of the long plate can be easily and quickly performed by sliding the slide plate. Further, since the protrusions are fitted into the first slit portion and the second slit portion which are orthogonal to each other and are double locked, even if the tape feeder violently rattles during high-speed operation, the locked state does not come off, and The supply reel can be firmly held between the first long plate and the second long plate.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a tape feeder according to an embodiment of the present invention, FIG. 2 is a perspective view of a first long plate provided in the tape feeder, and FIG. 3A is a front view of the first hole. FIG. 3B is a front view of the second hole, FIG. 4 is a plan view of a first long plate and a slide plate of the tape feeder,
FIG. 5 is a partial cross-sectional view of the first long plate and the slide plate fitted to the protrusion of the tape feeder.

First, the overall structure of the tape feeder will be described with reference to FIG. Reference numeral 1 denotes a long plate-shaped base serving as a main body of the tape feeder. A reel holder 2 is mounted on a rear part of the base 1, and a front mechanism 3 is provided on a front part of the base 1. The front mechanism 3 includes a tape pitch feeding means (not shown), a peeling claw 4, and the like. A take-up reel 5 is provided on an upper portion of the base 1. The tape led out from the supply reel 6 held by the reel holder 2 is pitch-fed on the upper surface of the base 1 by pitch feeding means. Then, the cover tape is peeled back from the tape by the peeling claw 4 and wound up on the take-up reel 5.

When the cover tape is peeled off, the electronic components housed in the pocket of the tape are exposed. Therefore, the transfer head of the electronic component mounting apparatus picks up the exposed electronic component by vacuum suction with a nozzle and mounts the electronic component on a substrate. Reference numeral 7 denotes an operation lever for attaching and detaching the tape feeder to and from the movable table, and reference numeral 8 denotes a pressing arm for pressing the supply reel 6 held by the reel holder 2 from above.

The reel holder 2 is provided with holding means 10 for the supply reel 6. The holding means 10 comprises a first long plate 11 and a second long plate 12 which are parallel to each other. W is the width of the holding means 10. A large number of tape feeders are used side by side, and it is desirable that the width W be as small as possible.

Both ends of the first long plate 11 and the second long plate 12 are attached to the upper portion of the reel holder 2 in an upwardly inclined posture toward the front with respect to the horizontal base 1. The side shape of the reel holder 2 is substantially semicircular, and therefore, approximately the upper half of the supply reel 6 held by the reel holder 2 projects upward from the reel holder 2. Therefore, the supply reel 6 is sandwiched between the first long plate 11 and the second long plate 12 from left and right,
Further, the supply reel 6 is pressed by the presser arm 8 so that the supply reel 6 does not rattle during the high-speed movement of the tape feeder.

Both ends of the second long plate 12 are fixedly attached to the reel holder 2. On the other hand, the rear end of the first long plate 11 is rotatably mounted on the reel holder 2 with pins 13 so as to be rotatable in the vertical direction. Reference numeral 14 shown in FIG. 2 is the pin hole. The front end is detachably attached by the attachment means 20.

Next, referring to FIGS.
The structure of will be described. In FIG. 2, near the right end of the first long plate 11, an elongated oval long hole 21 for finger insertion is formed in the longitudinal direction thereof, and the first hole is provided at the right end. Portion 22 is apertured. The first slit 22 is formed in the first hole 22 in a direction orthogonal to the longitudinal direction of the first long plate 11.
3 (see also FIG. 3A). A small rib 24 and a first stopper 25a are formed on the side of the long hole 21 opposite to the first hole 22. A second stopper 25b is formed at the right end. The first stopper 25a and the second stopper 25b are formed by partially cutting and raising the first long plate 11. The small ribs 24 are formed by press working. On the upper side and the lower side of the elongated hole 21, guide portions 26 are formed by cutting and raising, respectively.

In FIG. 2, reference numeral 27 denotes a slide plate,
A circular finger hole 28 is opened at the center, a second hole 29 is opened at one end, and a small rib 24 is fitted at the other end. A hole 30 is opened. When the slide plate 27 is placed on the first long plate 11, the finger hole 28 matches the long hole 21. In FIG. 3B, a second slit portion 31 is continuously provided in the second hole portion 29. The second slit portion 31 has a key shape, and has a component (a hole portion) 31a in a direction perpendicular to the longitudinal direction of the slide plate 27 (the same direction as the first slit portion 23).
And a component (hole) 3 that is bent at a right angle from this component 31a.
1b, and the component 31b is in the same direction as the longitudinal direction of the first long plate 11.

A projection 32 is mounted on the front upper end of the reel holder 2. As shown in FIG.
Numeral 2 is formed by projecting a thin pin 34 on the top surface of the cylindrical portion 33 and fixing a top plate 35 to the upper end of the pin 34. The slide plate 27 is superimposed on the end of the first long plate 11, and is slid on the end surface in the longitudinal direction of the first long plate 11. The first long plate 11 and the slide plate 27 are superposed on each other, and the top plate 35 is passed through the first hole portion 22 and the second hole portion 29, thereby being detachably mounted on the projection portion 32.

Next, a method of operating the engaging means 20 will be described with reference to FIG. FIG. 4A shows that the slide plate 27 is
5 shows a state in which the right end face is pressed against the right second stopper 25b by superimposing it on the end of the long plate 11 and sliding it to the right. This sliding operation is performed by inserting a fingertip into the finger insertion hole 28. The slide plate 27 is laid on the first long plate 11 with its upper and lower edges slidably engaged with the guide portions 26.

Now, in the state shown in FIG.
The first slit 23 conforms to the component 31 a of the second slit 31 of the second hole 29. In this state, the pin 34 of the neck of the protruding portion 32 is fitted into the matching portion.

Next, as shown in FIG.
7 is slid to the left, the left end face thereof is pressed against the first stopper 25a, and the small rib 24 is elastically fitted in the small hole 30. The small ribs 24 and the small holes 30 are positioning means for semi-fixing the slide plate 27 to the position shown in FIG.
In this state, the pin 34 is fitted and locked in the component 31b of the first slit portion 23 and the second slit portion 31.

When the end of the first long plate 11 is locked as described above, the electronic component is mounted by the electronic component mounting apparatus. The mounting of the electronic components is performed while repeatedly moving and stopping the tape feeder on the moving table device at a high speed. At the time of this high-speed movement / movement stop, an impact is applied to the tape feeder, and the tape feeder vibrates violently.

In FIG. 4B, the horizontal vibration A is blocked by the first slit portion 23, and the vertical vibration B is blocked by the component 31b of the second slit portion 31. Therefore, the first long plate 11 is doubly locked in the orthogonal direction, so that the vibration is reliably prevented, and the first long plate 11 does not rattle and drop off from the protrusion 32 due to the vibration. When the tape on the supply reel 6 is out of stock and the supply reel 6 is to be replaced, the slide plate 27 is slid in the opposite direction to the above-described case, and the first long plate 11 is moved.
Is released, and can be easily removed from the projection 32.

The advantages of this fastening means are as follows.
First, the lock / unlock operation is performed on the slide plate 27.
The slide operation can be easily performed. Second
In addition, since the horizontal vibration component A and the vertical vibration component B can be countered, it is possible to oppose the horizontal vibration A and the vertical vibration B and maintain a firm locked state. Third, the slide plate 27, which is the main body of the engaging means 20, is formed of a thin plate such as a metal plate, and is superimposed on the first long plate 11, which is also a thin plate. W (FIG. 1) can be reduced. A large number of tape feeders are used side by side on the table. Therefore, it is desirable that the width of the tape feeders be as small as possible and that the tape feeders be arranged side by side at a narrow pitch.
When the fastening means 20 is formed, the width W of the holding means 10 does not substantially increase, and the width W of the holding means 10 decreases. Can be.

[0027]

According to the present invention, the attachment and detachment of the first long plate can be performed easily and quickly by sliding the slide plate. In addition, since the protrusions are fitted into the first and second slit portions orthogonal to each other and are double locked in the orthogonal direction, the locked state may not be released even if the tape feeder violently rattles during high-speed operation. Not,
The supply reel can be firmly held between the first long plate and the second long plate. In addition, since the engaging means is constituted by a slide plate, the increase in the width of the holding means can be substantially eliminated, and the width can be reduced and the holding means can be arranged side by side on the movable table at a narrow pitch.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tape feeder according to an embodiment of the present invention.

FIG. 2 is a perspective view of a first long plate provided in the tape feeder according to the embodiment of the present invention;

FIG. 3A is a front view of a first hole according to one embodiment of the present invention. FIG. 3B is a front view of a second hole according to one embodiment of the present invention.

FIG. 4 shows a first example of the tape feeder according to the embodiment of the present invention.
Plan view of long plate and slide plate

FIG. 5 is a partial cross-sectional view of a first long plate and a slide plate fitted to the protrusion of the tape feeder according to one embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base 2 reel holder 3 front mechanism unit 5 take-up reel 6 supply reel 10 holding means 11 first long plate 12 second long plate 20 engaging means 22 first hole 23 first slit 25a First stopper 25b Second stopper 27 Slide plate 29 Second hole 31 Second slit 31a, 31b Component of second slit 32 Projection 34 Pin

Claims (2)

[Claims] A reel that holds a supply reel around which an electronic component storage tape is wound; and a clamping unit that clamps the supply reel held by the reel holder. A tape feeder for feeding an electronic component storage tape at a pitch toward a front portion of a base, wherein the holding means includes a first long plate and a second long plate mounted on a reel holder, One end of the first long plate is rotatably mounted on one side of the reel holder so as to be freely rotatable in the vertical direction, and the other end is detachably mounted on the other side of the reel holder via an engaging means, A slide plate which is slidably superimposed on an end of the first long plate,
A first hole is formed at the other end of the reel holder so as to fit the protrusion into the end of the first long plate, and the protrusion is fitted into the slide plate. A second hole having a component orthogonal to the first slit is provided in the second hole while a second slit is continuously provided in the first hole. A series of slits,
A tape feeder characterized in that the projection is fitted and locked to a portion where the first slit and the second slit overlap. 2. The apparatus according to claim 1, wherein said first slit portion is opened in a vertical direction intersecting a length direction of said first long plate, and said second slit portion is opened in a vertical direction.
Has a vertical component perpendicular to the longitudinal direction of the first long plate connected to the second hole, and a horizontal component connected to the tip of the vertical component. 2. The tape feeder according to claim 1, wherein the projection is fitted and locked to a portion where the horizontal component and the first slit overlap.