JPH0851294A - Component supply device - Google Patents

Abstract

PURPOSE:To prevent excessive protection film peeled of a component supplying device which supplies a tape while peeling off the protection film. CONSTITUTION:A protection film 12 which covers the top plane of a tape which holds electronic components is drawn from a slit 34a to be taken up by a film take-up reel 24. A film take-up mechanism 35 is provided to turn a ratchet wheel 42 incorporated with the film take-up reel 24 in an arrow B direction by rocking a turning link 43 provided with a ratchet 44 by bringing up and down a drive lever 47. A pressure pin 51 is provided at the middle of the drive lever 47 to press down the protection film 12 to extend the path in a V-shape and draw the protection film 12. The protection film 12 is drawn from the slit 34a by the pressure pin 51 with a slack, and is taken up by the film take-up reel 24 under the condition that tension is not applied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply apparatus for supplying electronic components held on a long tape to a component extraction section one by one.

[0002]

2. Description of the Related Art For example, in a component mounting apparatus for automatically mounting a chip-type electronic component on a board, a plurality of component feeders called tape feeders are arranged and the components of those component feeders are mounted by a mounting head. The electronic parts are picked up from the take-out part by suction or the like, conveyed, and mounted on a substrate.

FIG. 13 shows a tip portion of a conventional tape feeder 1, in which a tape feed path 4 for feeding a tape 3 is located in an upper surface of the body frame 2 and extends in the front-rear direction. Further, a holding tape collecting path 5 is provided continuously to the tape supply path 4. A cover 6 is provided to cover the tape supply path 4 and the holding tape recovery path 5 from above. At this time, the cover 6 is formed with a window portion 6a which is located at the end portion of the tape supply path 4 and exposes the tape 3 and is referred to as a component extraction portion A. A tape feed mechanism 9 including a main drive lever 7 and a sprocket wheel 8 that is rotated by a predetermined angle in the feed direction by the main drive lever 7 is attached to the body frame 2.

On the other hand, as shown in FIG. 12, the tape 3 accommodates a chip-shaped electronic component 11 in each recess 10b formed at a predetermined pitch in a holding tape 10 having a sprocket hole 10a at one side edge. Further, the upper surface of the main body frame 2 is covered with a protective film 12, and is wound around a supply reel (not shown) and set in the tape supply section at the rear of the main body frame 2. Then, the tape 3 pulled out from the reel passes through the tape supply path 4 and the sprocket hole 10
A is set to be engaged with the upper end of the sprocket wheel 8.

As a result, the tape 3 is moved by one pitch by one operation of the drive lever 8 and the electronic parts 11 are sent out one by one to the window 6a. The electronic component 11 of the component unloading section A is sucked by the suction nozzle 13 of the mounting head and conveyed. Further, as shown in FIG. 14, the protective film 12 has a window portion 6
The slit 6 formed in the cover 6 in front of a
The film take-up reel 14 is peeled upward from b.
It is designed to be wound up on.

At this time, as schematically shown in FIG.
The film take-up reel 14 is a ratchet wheel 1
5, the ratchet wheel 15 is rotated by a ratchet pawl 17 provided on a drive lever 16 connected to the main drive lever 7 via a link mechanism. ing. Further, the ratchet wheel 15 is rotatable only in the direction of arrow B,
The ratchet pawl 17 is provided on the ratchet wheel 15 by the arrow B.
The rotational force is transmitted only when rotating in the direction.

Thus, when the main drive lever 7 is driven from the normal state (a), the drive lever 16 descends and the ratchet pawl 17 rotates the ratchet wheel 15 in the direction of arrow B with a predetermined force, As a result, the film take-up reel 1 while the protective film 12 is peeled off at the slit 6b portion
It is wound up in 4 (b). Next, drive lever 1
The ratchet pawl 17 is returned to its original position by the ascent of 6 (c).

[0008]

However, in the conventional film winding mechanism constructed as described above, the film winding mechanism shown in FIG.
As shown in, the tension Fa is always applied to the protective film 12 from the slit 6b to the film take-up reel 14, and therefore, the protective film 12 is wound by the film take-up reel 14 for one pitch. At the time of completion of the winding, the protective film 12 may be pulled out from the slit 6b in excess of one pitch due to the inertial force Fb at the time of winding.

When the protective film 12 is pulled out from the slit 6b more than one pitch in this way, the holding tape 10 is fed further by that much, and the holding tape 10 is displaced to the position of the electronic component 11. Occurs, the component suction position of the suction nozzle 13 in the component take-out portion A is displaced, and eventually the mounting accuracy of the electronic component 11 is deteriorated.

The present invention has been made in view of the above circumstances, and an object thereof is to send a tape for holding an electronic component while peeling off a protective film covering the upper surface of the tape. (EN) Provided is a component supply device capable of preventing the device from being peeled off.

[0011]

According to a first aspect of the present invention, there is provided a component supply device for holding an electronic component on a holding tape at a predetermined pitch and setting a long tape having an upper surface covered with a protective film. A tape feeding path having a feeding portion, a peeling portion provided from the tape feeding portion to the component taking-out portion and having the protective film peeled from the tape in the middle thereof, and the tape having a predetermined pitch on the tape feeding path. One by one, and the electronic parts are placed in the parts pick-up section.
A tape feeding mechanism for supplying the tapes one by one, and a film winding mechanism for winding the protective film peeled off from the peeling section on a winding reel, in synchronization with the tape feeding by the tape feeding mechanism. Before the driven reel reaches the take-up reel, the protective film is pulled out from the peeling section to form a slack, and a winding operation of the protective film by the film take-up mechanism is performed by the film pull-out means. It is characterized in that it is configured to be completed after the protective film is pulled out to be in a loosened state.

In this case, the film pull-out means is constituted by providing a pressing pin on a drive lever which is moved in one direction in synchronization with the tape feeding mechanism and then is moved back, and the pressing lever is moved when the drive lever is moved in one direction. The pin can be configured to be pulled out from the peeling part by being pressed and moved so as to extend the path by catching the pin on the middle part of the protective film passed between the peeling part and the take-up reel. (Invention of Claim 2).

When the pressing pin is provided in this manner, the pressing pin is provided at a position where the pressing amount of the protective film on the take-up reel decreases as the winding diameter of the protective film increases. It is effective (the invention of claim 3). Further, the pressing pin is provided so as to be displaceable to the side opposite to the pressing direction of the protective film with respect to the drive lever, and is constantly biased in the pressing direction by a spring (the invention of claim 4). Alternatively, the pressing pin may be provided so as to be positionally adjustable with respect to the drive lever in the moving direction of the drive lever (the invention of claim 5). Further, the pressing pin may be provided at a position where it is always in contact with the middle of the protective film passed between the peeling section and the take-up reel (the invention of claim 6).

[0014]

According to the component supply device of the first aspect of the present invention, when the tape feeding mechanism feeds the tape at a predetermined pitch toward the component take-out portion, the protective film is peeled from the tape at the peeling portion and peeled off. The protective film is wound on the winding reel by the film winding mechanism. At this time, the protective film is pulled out from the peeling portion in synchronism with the feeding of the tape by the film pulling-out means to form slack,
After the slackened state, the winding operation of the protective film by the film winding mechanism is completed. Therefore, the protective film is wound around the take-up reel in a state in which no tension is applied, and the inertia force during winding does not generate tension for further pulling out the protective film from the peeling portion.

In this case, if the film pulling means is constructed by providing the drive lever with a holding pin for hooking on the intermediate portion of the protective film to extend the path (the invention of claim 2), a simple construction is provided. Can be done with.

When the pressing pin is provided as described above, the pressing pin is provided at a position where the pressing amount of the protective film of the take-up reel becomes smaller as the winding diameter of the protective film becomes larger. According to the third aspect of the invention, the pressing amount of the pressing pin changes in accordance with the tension applied to the protective film by the take-up reel, so that the protective film can be stably pulled out and wound.

Further, the pressing pin is provided so as to be displaceable on the side opposite to the pressing direction of the protective film with respect to the drive lever, and is always biased by the spring in the pressing direction (claim 4). Invention), it becomes possible to press the protective film with a constant force. Further, if the presser pin is provided so as to be positionally adjustable with respect to the drive lever in the moving direction of the drive lever (invention of claim 5), the amount of separation by the presser pin can be adjusted according to the tape feed pitch. it can. Further, if the holding pin is provided at a position which is always in contact with the middle part of the protective film passed between the peeling portion and the take-up reel (invention of claim 6), the vibration of the protective film, and thus the tape. It becomes possible to suppress the occurrence of vibration.

[0018]

EXAMPLE A first example of the present invention (claim 1,
(Corresponding to 2 and 3) will be described with reference to FIGS. 1 to 7. Since the structure of the tape 3 shown in FIG. 12 described in the conventional example is common to this embodiment, a new illustration and description will be omitted and common reference numerals will be used.

First, the overall construction of the tape feeder 21 which is the component supplying apparatus according to this embodiment will be briefly described with reference to FIGS. 5 and 6. 5 shows the front end of the tape feeder 21, and FIG. 6 shows almost the entire structure except the rear end (right side in the drawing) of the tape feeder 21, where:
This tape feeder 21 includes a body frame 2 made of a metal plate.
2, a long tape 3 (see FIG. 12) holding a large number of chip-shaped electronic components 11 is replaceably provided, and as described later, the electronic components 11 held by the tape 3 are provided. A tape feeding mechanism 23 for feeding one by one to the component take-out section A is provided.

The body frame 22 is formed in a box shape having a thin width slightly larger than the width dimension of the tape 3, and the tape is fed to the tip side portion (left side portion in FIG. 6) whose height is lowered by one step. The film winding reel 24, the tape supply reel 25, and the tape winding reel 26 (only a part of which are shown) ) Is provided. Of these, the tape 3 is set on the tape supply reel 25 in a wound state.

A tape supply path 27, on which both side edges of the tape 3 (holding tape 10) are placed and fed, is provided on the upper surface of the tip of the main body frame 22 so as to extend in the front-rear direction. The end portion (front end portion) of the tape supply path 27 serves as a component extraction portion A. The tape feeding mechanism 23 has a sprocket wheel 28 whose upper end is located on the side of the component take-out portion A, and whose front end is the main body frame 2
It is configured to be rotationally driven by a main drive lever 29 projecting forward from 2. The sprocket wheel 28 has teeth corresponding to the pitch of the sprocket holes 10a of the tape 3, and a detailed description thereof will be omitted, but one swing of the main drive lever 29 (ascending and returning downward). Depending on the feed claw 30 and ratchet wheel 31
6 and the like, it is rotated counterclockwise in FIG. 6 by a predetermined angle corresponding to the arrangement pitch of the electronic components 11.

Thus, the tape 3 pulled out from the tape supply reel 25 is slid forward by one pitch on the tape supply path 27 by the tape feed mechanism 23, and the electronic component 11 is removed from the component extraction section A. It is designed to be sent out one by one. Then, the electronic component 11 of the component unloading section A is sucked and conveyed by the suction nozzle 32 provided in the mounting head of the component mounting apparatus. Further, as shown in FIG. 6, the remaining holding tape 10 from which the electronic component 11 has been taken out is continuous with the tape supply path 27 and is bent at the front end of the main body frame 22 in a U-shape to extend backward. The tape is wound around the tape take-up reel 26 through the tape collecting path 33.

At this time, the upper part of the tape supply path 27 is covered by the tape retainer 34 except for the component take-out portion A, and the tape 3 passes through the gap between them. The tape retainer 34 has a protective film 1 covering the upper surface of the holding tape 10 before reaching the component take-out portion A.
A slit 34a for peeling and discharging 2 is formed. As a result, a peeling portion is formed in the middle of the tape supply path 27. As will be described later in detail, the peeled protective film 12 is wound around the film winding reel 24 by the film winding mechanism 35.

Further, a shutter member 36 is provided on the tip side of the tape retainer 34. Although not described in detail, the shutter member 36 is slidably moved in the front-rear direction on the upper surface of the tape retainer 34 as the main drive lever 29 is driven. At this time, in the shutter member 36, as shown in FIG. 5, in the normal state, the wide action surface portion 36a in the lowered state is retracted into the notch 34b of the tape retainer 34, and the main drive lever 29 is driven. As a result, the action surface portion 36a is moved to the part unloading portion A portion integrally with the feeding of the tape 3,
The tape 3 is configured to return to the retracted position when the tape 3 is stopped (a new electronic component 11 is supplied to the component unloading section A). This prevents the electronic component 11 from jumping out when it is moved.

The tape feeder 22 configured as described above
Is a mounting base 37 of the component mounting apparatus, as shown in FIG.
It is detachably attached to and is fixed by a holding arm 38. At this time, the main drive lever 2
9 is arranged above an air cylinder 39 provided in the component mounting apparatus, and is driven by the air cylinder 39 at a predetermined timing. A front tape retainer 40 made of a metal plate is provided separately from the tape retainer 34 above the front side of the holding tape recovery path 33.

Now, the film winding mechanism 35 will be described with reference to FIGS. 1 to 4 and 7. The film take-up reel 24 is configured to have large-diameter flange portions 24b on both right and left sides of a small-diameter take-up barrel 24a, and is rotatably and detachably attached to a shaft 41 provided on the main body frame 22. ing. This film take-up reel 24
Is located apart from the slit 34a of the tape retainer 34 in the upper rear part, and the protective film 12 peeled from the slit 34a is wound around the winding drum 24a from below.

A ratchet wheel 42 is integrally provided on one flange portion 24b of the film take-up reel 24. This ratchet wheel 42
Is rotatable only in the direction of arrow B (clockwise direction in FIGS. 1 to 4) by a reverse rotation preventing claw (not shown),
Therefore, the film take-up reel 24 can be rotated only in the arrow B direction.

Further, a proximal end portion of a rotary link 43 whose front end extends in a bifurcated shape toward the upper front side is rotatably attached to the shaft 41. One of the rotation links 43 (upper side)
A ratchet pawl 44 for rotating the ratchet wheel 42 is provided at the tip of the arm, and a connecting pin 45 is provided at the other (lower side) of the arm. As will be described later, the rotation link 43 is configured to swing in the arrow B direction and the arrow C direction opposite thereto, and when the rotation link 43 rotates in the arrow B direction, the ratchet pawl 44
Thus, the ratchet wheel 42 is rotated in the same direction. Further, the ratchet pawl 44 slides on the ratchet wheel 42 when returning and rotating in the direction of the arrow C. The rotation of the rotation link 43 in the arrow C direction is restricted by the stopper 46.

The rotary link 43 is swung by a drive lever 47 having a vertically long thin plate shape. The drive lever 47 is provided on the front end side of the film take-up reel 24 so that the protective film 1 is about to be taken up.
It is provided so as to extend in the vertical direction so as to traverse 2, and the connecting pin 45 is fitted in a long hole 47a formed at the upper end portion. Further, a coil spring 49 is stretched between the connecting pin 45 and a mounting portion 48 provided at an intermediate portion of the drive lever 47. Although not shown in detail, the mounting portion 48 is provided so that the vertical position can be adjusted with respect to the drive lever 47.

Thus, as will be described in detail later in the description of the operation, in the state where the drive lever 47 is lowered and the coil spring 49 is extended to some extent, the connecting pin 45 and thus the rotary link 43 are pulled by the pulling force. It is adapted to rotate in the direction of arrow B. On the other hand, when the drive lever 47 moves up, the connecting pin 45 comes into contact with the lower end of the elongated hole 47a, so that the connecting pin 45, and thus the rotation link 43, returns and rotates in the direction of arrow C.

On the other hand, the lower end of the drive lever 47 is connected to a link mechanism 50 operated by the main drive lever 29, as shown in FIG. The link mechanism 50 is configured to lower the drive lever 47 when the main drive lever 29 is driven by the air cylinder 39, and then return and raise the drive lever 47 by a spring force or the like. The holding tape 10 is wound up by the tape take-up reel 26 via the link mechanism 50.

A pressing pin 51, which constitutes a film drawing means together with the drive lever 47, is provided in the middle of the drive lever 47. This press pin 51
Is provided so as to be positioned on the upper surface of the intermediate portion of the protective film 12 that is pulled out from the slit 34a and wound on the film take-up reel 24, and the intermediate portion of the protective film 12 as the drive lever 47 descends. By pressing down and extending that path in a reverse "F" shape,
The protective film 12 is configured to be pulled out from the slit 34a.

In this embodiment, the pressing pin 51 is fixedly attached to the drive lever 47 and moves integrally when the drive lever 47 descends and rises, in other words, it always moves up and down at a fixed position. It is supposed to be moved.
In FIG. 7, the uppermost position of the presser pin 51 is shown by a solid line and the lowermost position is shown by a chain double-dashed line. In this case, when the winding diameter of the film winding reel 24 is small, as shown in (a),
When the amount of pressing movement of the presser pin 51 with respect to the protective film 12 increases and the winding diameter of the film take-up reel 24 increases, as shown in (b), the pressing pin 5 is pressed.
The position of the pressing pin 51 is set such that the amount of pressing movement of the protective film 12 by 1 becomes small (or becomes zero).

Next, the operation of the above configuration will be described. At normal times, that is, when the main drive lever 29 is not operated, the drive lever 47 is stopped at the raised position in the film take-up reel 24 portion as shown in FIG.
Also in the rotation link 43, the connection pin 45 is positioned at the lower end of the elongated hole 47a of the drive lever 47 and is stopped. Of course, the film take-up reel 24 is stopped. Further, at this time, the pressing pin 51 is at the uppermost position, and is spaced slightly upward from the protective film 12. When the winding diameter of the film winding reel 24 is small, the pressing pin 51 may be in contact with the upper surface of the protective film 12.

When the main drive lever 29 is driven, the tape feeding mechanism 23 operates and the tape 3 is fed forward by one pitch on the tape supply path 27 as described above. As a result, the electronic parts 11 are supplied to the parts unloading section A one by one. At this time, the protective film 12 is peeled off by one pitch from the slit 34a provided in the middle of the tape retainer 34 and wound on the film winding reel 24. The operation of the film winding mechanism 35 is as follows. The details are as follows.

That is, when the main drive lever 29 is driven,
As shown in FIG. 2, the drive lever 47 starts descending via the link mechanism 50, and the presser pin 51 moves downward to press the protective film 12 downward, and thus the slit 34a.
The protective film 12 is gradually pulled out from the. However, at the beginning of this descent, since the spring force of the coil spring 49 is weak, the connecting pin 45 only relatively rises in the elongated hole 47a, the rotating link 43 does not rotate, and the film take-up reel. The winding operation of 24 (rotation in the direction of arrow B) is not performed.

When the drive lever 47 descends to the lowermost position, as shown in FIG. 3, the pressing pin 51 also moves to the lowermost position, and the protective film 12 is peeled off from the slit 34a by about one pitch. Will be done. Then, at the time when the drive lever 47 descends to the lowest position or immediately before that, the coil spring 49 extends and the connecting pin 4
The pulling force against the film 5 exceeds a predetermined value, and finally the rotation link 43 rotates in the direction of the arrow B to rotate the film take-up reel 24.
Will start to rotate in the same direction.

Thereafter, as shown in FIG. 4, the drive lever 47 (pressing pin 51) rises, so that the drawn-out protective film 12 is loosened between the slit 34a and the film take-up reel 24. It becomes a state. At this time, since the rotating link 43 is rotating in the direction of the arrow B, the protective film 12 in a loosened state is taken up by the film take-up reel 24. The rotation of the rotation link 43 (film winding reel 24) in the direction of the arrow B is performed by the drive lever 4
7, the connecting pin 45 comes into contact with the lower end of the long hole 47a and stops, and thereafter, the drive lever 47 further moves and the rotating link 43 rotates in the direction of arrow C and finally rotates. It will return to the state of 1.

In the operation of the film winding mechanism 35 as described above, the protective film 12 is pulled out from the slit 34a by the pressing pin 51 in synchronism with the feeding of the tape 3, and a slack is formed. After that, the operation of winding the protective film 12 onto the film winding reel 24 is completed. Therefore, the protective film 12 is wound around the film take-up reel 24 in a state in which no tension is applied, and the inertial force at the time of winding causes a tension to further pull out the protective film 12 from the slit 34a. Nothing will happen.

In the operation of the film winding mechanism 35, the film winding reel 24 is operated by the ratchet pawl 4
4 causes the film to be rotated by the same rotational force every time, but at this time, as shown in FIG. 7, the winding diameter of the film winding reel 24 becomes large, that is, the tension acting on the protective film 12 becomes small. As
Since the pressing amount of the pressing pin 51 with respect to the protective film 12 is reduced, the protective film 12 can be stably pulled out and wound up regardless of the winding diameter.

As described above, according to this embodiment, the protective film 12 is wound around the film take-up reel 24 in a state where no tension is applied, so that the protective film 12 is caused by the inertia force Fb at the time of winding. However, unlike the conventional one in which there is a possibility of being pulled out from the slit 6b in excess of one pitch, it is possible to prevent the protective film 12 from being peeled off excessively. As a result, it is possible to reliably prevent the occurrence of positional displacement of the electronic component 11 in the component extraction portion A due to excessive peeling of the protective film 12, and to improve the precision of the component suction position by the suction nozzle 32 and thus the mounting position. Is something that can be done.

Further, in this embodiment, since the film pull-out means is constituted by providing the pressing pin 51 on the drive lever 47 which is originally necessary for rotationally driving the film take-up reel 24, the protective film 12 is peeled off. The timing can be surely synchronized with the tape feeding mechanism 23, and the structure is extremely simple and can be inexpensive.

8 and 9 show a second embodiment (corresponding to claim 4) of the present invention. The difference of this embodiment from the first embodiment is that a vertically long slot 61a is formed in the drive lever 61, a holding pin 62 is provided movably in the slot 61a, and a coil spring 63 The pressing pin 62 is always urged downward.

Specifically, as shown in FIG. 8, the pressing pin 62 has its tip end side protruding from the elongated hole 61a to the front side, and its base end part is fixed to the middle part of a vertically extending round shaft 64. The round shaft 64 is supported by a ball bush 66 provided on the back side of the drive lever 61 with a sleeve 65 movably up and down. Further, the coil spring 63 is provided in a compressed state between the upper sleeve 65 and a ring 67 provided in the middle of the round shaft 64.

With this structure, the protective film 12 can always be pressed by the pressing pin 62 with a constant force, and when the protective film 12 is pressed downward (peeled) by the pressing pin 62. , Even if a sudden tension occurs in the protective film 12 for some reason,
The advantage is that the pressing pin 62 can escape upward.

10 and 11 show a third embodiment of the present invention (corresponding to claim 5). In this embodiment, the drive lever 71 is formed with a vertically elongated slot 71a having a narrow width, while the pressing pin 72 is provided at the base end thereof with the slot 71a.
The small-diameter threaded portion 73 that is inserted into the a is formed, and the washer 7
4 and nut 75, presser pin 72 is driven to drive lever 7
It is attached so that the vertical position can be adjusted with respect to 1.

According to this structure, the pressing pin 72 is arranged in accordance with the feeding pitch of the tape 3 (arrangement pitch of the electronic parts 11).
The peeling amount of the protective film 12 can be adjusted, and it can be applied to a plurality of types of tapes 3.

Although not shown, the pressing pin may be provided so as to be in constant contact with the protective film 12.
According to this, for example, the vibration of the protective film 12 at the time of feeding the tape 3 and the vibration of the tape 3 can be suppressed, and the pop-out of the electronic component 11 due to the vibration can be prevented in advance. You can get the benefits.

Besides, the present invention is not limited to the above-mentioned respective embodiments, and for example, the film drawing means is not limited to the combination of the drive lever and the pressing pin, and for example, a pair of arms arranged at intervals. A jig having a portion is provided so as to be rotated by the vertical movement of the drive lever, and a protective film is passed between a pair of arm portions of the jig.
When the drive lever descends, the pair of arms rotate to press the protective film in a meandering manner, causing slack in the protective film, and when the drive lever rises, the pair of arms rotates in the opposite direction to return to the original state. The present invention can be implemented by appropriately changing it within a range not departing from the gist, such as being configured to return to the position.

[0050]

As is apparent from the above description, the present invention has the following excellent practical effects. That is, according to the component supply device of claim 1, the tape for holding the electronic component is fed while peeling off the protective film covering the upper surface thereof, and is synchronized with the tape feeding by the tape feeding mechanism. Before the driven reel reaches the take-up reel, the protective film is pulled out from the peeling portion to form a slack, and the protective film is wound by the film take-up mechanism. Since it is configured to be completed after being pulled out and in a loosened state, it is possible to prevent the protective film from being excessively peeled off.

In this case, the film pull-out means may be constituted by a drive lever provided with a holding pin for hooking an intermediate portion of the protective film to extend the path (the invention of claim 2). Can be done with.

When the pressing pin is provided in this way, the pressing pin is provided at a position where the pressing amount of the protective film on the take-up reel becomes smaller as the winding diameter of the protective film becomes larger. According to the third aspect of the invention, the pressing amount of the pressing pin changes according to the tension acting on the protective film by the take-up reel, and stable winding can be performed.

If the pressing pin is provided so as to be displaceable on the side opposite to the pressing direction of the protective film with respect to the drive lever, and is always biased by the spring in the pressing direction (claim 4). Invention), it becomes possible to press the protective film with a constant force. Further, if the presser pin is provided so as to be positionally adjustable with respect to the drive lever in the moving direction of the drive lever (invention of claim 5), the amount of separation by the presser pin can be adjusted according to the tape feed pitch. it can. Further, if the holding pin is provided at a position which is always in contact with the middle part of the protective film passed between the peeling portion and the take-up reel (invention of claim 6), the vibration of the protective film, and thus the tape. It becomes possible to suppress the occurrence of vibration.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention and is an enlarged left side view of a film winding mechanism portion.

FIG. 2 is a view corresponding to FIG. 1 showing a state immediately after the start of lowering of the drive lever.

FIG. 3 is a view showing a state in which the drive lever is at the lowest position.
Corresponding figure

FIG. 4 is a view corresponding to FIG. 1 showing a state where the drive lever is being returned and raised.

FIG. 5 is a perspective view showing a front end portion of the component supply device.

FIG. 6 is a right side view of the tip side portion of the component supply device.

FIG. 7 is a schematic left side view of a main part showing a state (a) where the winding diameter of the protective film is small and a state (b) where the winding diameter is large.

FIG. 8 shows a second embodiment of the present invention and is a vertical sectional front view showing a mounting state of the presser pin.

FIG. 9 is a side view of a presser pin portion.

FIG. 10 is a view corresponding to FIG. 8 showing a third embodiment of the present invention.

FIG. 11 is a view corresponding to FIG. 9.

FIG. 12 is a perspective view of the tape.

FIG. 13 is a view corresponding to FIG. 5 showing a conventional example.

FIG. 14 is a schematic left side view of the main part, showing in sequence the state of winding the protective film.

[Explanation of symbols]

In the drawings, 3 is a tape, 10 is a holding tape, 11 is an electronic component, 12 is a protective film, 21 is a tape feeder (component feeder), 22 is a main frame, 23 is a tape feed mechanism, 24 is a film take-up reel, 27 Is the tape supply path,
29 is a main drive lever, 32 is a suction nozzle, 34 is a tape retainer, 34a is a slit (peeling portion), 35 is a film winding mechanism, 41 is a shaft, 42 is a ratchet wheel, 43 is a rotation link, and 44 is a ratchet claw. , 45 are connecting pins, 4
6 is a stopper, 47, 61 and 71 are drive levers, 48 is a mounting portion, 49 is a coil spring, 50 is a link mechanism, 51,
62 and 72 are holding pins, 61a and 71a are long holes, 63 is a coil spring, and A is a part extraction part.

Front page continued (72) Inventor Naoji Ariga, 48 Okubo, Yabuki-cho, Nishishirakawa-gun, Fukushima Prefecture Asahi Koki Co., Ltd. (72) Inventor Yukio Suzuki, 48, Okubo, Yabuki-cho, Nishishirakawa-gun, Fukushima Asahi Koki Co., Ltd. 72) Inventor Hisao Suzuki 2-2046, Horifune, Kita-ku, Tokyo, Japan Machinery Technology Development Center, Japan Tobacco Inc. (72) Inventor, Etsuro Minamihama 2121 Sayo, Asahi-cho, Mie-gun, Mie Prefecture Stock Company Toshiba Mie factory

Claims (6)

[Claims] 1. A tape supply unit for holding an electronic component at a predetermined pitch on a holding tape, and a long tape whose upper surface is covered with a protective film is set, and a tape supply unit extending from the tape supply unit to a component extraction unit. A tape supply path having a peeling section provided in the middle of the protective film for peeling the tape from the tape, and the tape is fed on the tape feed path at a predetermined pitch to supply the electronic components one by one to the component ejection section. A tape feeding mechanism for winding the protective film peeled off from the peeling section onto a take-up reel, the tape winding mechanism being driven in synchronization with the tape feeding by the tape feeding mechanism. Before the reel is reached, the protective film is pulled out from the peeling section to form a slack, and a film withdrawing means is provided. Component supply device winding operation of the protective film by preparative mechanism, characterized by being configured to complete after a slack in the protective film is pulled out by the film pull-out means. 2. The film pull-out means is provided with a holding pin on a drive lever which is moved in one direction in synchronism with a tape feeding mechanism and is then returned, and the holding pin is peeled off when the driving lever is moved in one direction. Characterized in that the protective film is pulled out from the peeling portion by being pressed and moved so as to extend the path by being caught at an intermediate portion of the protective film passed between the portion and the take-up reel. The component supply device according to claim 1. 3. The component according to claim 2, wherein the pressing pin is provided at a position such that the pressing amount of the protective film of the take-up reel becomes smaller as the winding diameter of the protective film becomes larger. Supply device. 4. The pressing pin is provided so as to be displaceable on the side opposite to the pressing direction of the protective film with respect to the drive lever, and is constantly biased in the pressing direction by a spring. The component supply device according to claim 2 or 3. 5. The component supply device according to claim 2, wherein the presser pin is provided so as to be positionally adjustable with respect to the drive lever in the movement direction of the drive lever. 6. The presser pin is provided at a position which is always in contact with an intermediate part of a protective film which is passed between the peeling part and the take-up reel. The component supply device described.