JP4302267B2 - Tape feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tape feeder that sequentially supplies components to a predetermined position using a tape as a carrier in order to mount components on a substrate in a mounting machine.
[0002]
[Prior art]
Conventionally, as this type of tape feeder, for example, a tape containing a tape main body and a cover tape containing a large number of parts at regular intervals is held in a state wound around a reel, and the tape is led out from the reel. While leading to a predetermined part take-out part in front of the feeder, the cover tape is peeled off from the tape body so that the part can be taken out, and the part is sucked by the nozzle member and the part is sucked. After that, it is known that the tape is intermittently fed by a feeding mechanism.
[0003]
In the above-mentioned tape feeder, a tape protection member is provided above the portion where the tape is passed in order to prevent the tape from being lifted up to a predetermined position at the component take-out portion. And the opening part is formed in the said tape protection member in a predetermined position, Components can be taken out now in this opening part. Further, in order to prevent parts from unexpectedly jumping out of the open part except when the parts are taken out, a shutter member that closes the open part and opens the open part when the parts are taken out is provided on the surface of the tape protection member. It is also made to slide up.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional tape feeder, the gap between the tape supplied to the component take-out portion and the tape protection member may change due to variations in the thickness of the tape. For this reason, when the parts to be supplied are, for example, extremely small parts called 0603 (size of 0.6 mm × 0.3 mm), when the gap is increased and the tape is lifted, the parts pop out or the tape In some cases, the component may be sucked poorly due to the component standing up in the component storage portion.
[0005]
In view of the above circumstances, the present invention has a structure in which a tape take-out member and a shutter member are provided in a component take-out part, and the tape that can more reliably prevent the part from standing up and jumping out in the part storage part of the tape. The purpose is to provide a feeder.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, a tape feeder according to the present invention includes a tape containing a large number of parts at regular intervals, a tape lead-out part for leading out the tape, and a tape led out from the tape lead-out part. A component take-out portion that holds the take-out state, a tape protection member that is located above the tape passage portion and has an open portion for taking out the component at a predetermined position in the component take-out portion, and is provided in the tape protection member A shutter member that closes at least a part of the open portion except when the component is taken out and slides to a non-closed position when the component is taken out, and is located below the tape passage portion in the component take-out portion, and is attached to the tape protection member. And an auxiliary member that elastically contacts the lower surface of the tape so as to press the tape. The auxiliary member has a tape contact portion in which the center of the plate spring is bent upward, a fixing portion provided on one end side thereof, and a flat plate-like support portion provided on the other end side. The fixing portion is fixed to a groove provided along the passage of the tape, and the entire surface of the support portion is slidably in contact with the bottom of the groove, and the tape contact portion is a lower surface of the tape. By elastically contacting the tape, the tape is always pressed against the tape protection member.
[0007]
According to this configuration, the shutter member closes the opening portion except when the part is taken out, thereby preventing the part from popping out. When the part is taken out, the shutter member is slid to the non-closed position so that the part can be taken out. Further, an auxiliary member located below the tape passage portion is in elastic contact with the lower surface of the tape so as to always press the tape against the tape protection member. For this reason, even if the thickness of the tape may change, it becomes possible to move the tape while the tape is in close contact with the tape protection member by the auxiliary member, and the tape supplied to the component take-out portion will be lifted. Is prevented. Therefore, even if the supplied component is a very small component, problems such as the standing of the component in the component storage part of the tape and the jumping out of the component do not occur, and the component can be reliably sucked. In addition, since the auxiliary member has an extremely simple structure in which only the auxiliary member is provided below the tape passage portion, manufacture and assembly are easy.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 shows the overall structure of a tape feeder 4 according to the present invention.
[0010]
The tape feeder 4 includes a front plate 22 and a rear plate 23, and multiple rows are detachably attached to the feeder holding plate 16 of the mounting machine via the front plate 22. More specifically, a positioning pin 22a protrudes from the lower surface of the front side plate 22, and the positioning pin 22a is inserted into a perforated portion 16a formed in the feeder holding plate 16, whereby the tape feeder 4 is fed to the feeder. It is positioned on the holding plate 16 and is fixed to the feeder holding plate 16 by a clamp 24 provided at the front end portion of the front side plate 22 in this state. The clamp 24 is connected to a handle 25 supported above the rear end of the front side plate 22 via links 28 and 29, and is switched between a clamp fastening state and a clamp release state by swinging the handle 25. It is supposed to be.
[0011]
A reel 26 is rotatably supported on the rear side plate 23, and a tape 27 containing a large number of chip parts is wound around the reel 26. A component take-out portion 40 is provided at a front end portion (right end portion in the figure) of the front side plate 22, and a tape 27 is drawn out from the reel 26 and guided to the component take-out portion 40, and a tape feed mechanism. Are sent out sequentially.
[0012]
The tape 27 led out from the reel 26 includes a tape body 27a and a cover tape 27b as shown in FIG. In the tape body 27a, a large number of component storage portions 27c that open to the top are formed at regular intervals in the longitudinal direction, and components (not shown) are stored in each component storage portion 27c. A large number of engagement holes 27d are formed at regular intervals on the side portion of the. The cover tape 27b has an adhesive surface on one side, and is adhered to the upper surface of the tape body 27a so as to close each component storage portion 27c of the tape body 27a from above. Then, the cover tape 27b is peeled off from the tape main body 27a in the component take-out portion 40 so that the component can be taken out. The component 28 is sucked and taken out by the head 13, and the component take-out operation is performed. The tape 27 is fed out by a fixed amount by the tape feeding mechanism 30.
[0013]
As shown in FIG. 1, the tape feeding mechanism 30 has a sprocket 31 disposed below the component take-out portion 40, a ratchet (not shown) connected to the sprocket 31, and the air cylinder 32 as a driving source. A ratchet drive mechanism, and the sprocket 31 is arranged to engage with the engagement hole 27d of the tape 27 guided to the component take-out portion 40. At the time of supplying the parts, the ratchet is intermittently rotated only in a certain direction by driving the air cylinder 32, whereby the tape 27 is intermittently fed out by a certain amount.
[0014]
The cover tape 27b separated from the tape main body 27a in the component take-out portion 40 is picked up by the cover tape take-off mechanism 33 disposed in the lower rear portion (left lower portion in the figure) of the front side plate 22. It is configured. The take-up mechanism 33 includes a driving roller 34 and a driven roller 35 that is in pressure contact with the driving roller 34, and the cover tape 27 b is guided between the rollers 34 and 35. By pulling the cover tape 27b by driving the drive roller 34, the cover tape 27b is peeled off from the tape body 27a by the pulling force. The cover tape 27b that has passed through the take-out mechanism 33 and the used tape main body 27a that has passed through the component take-out portion 40 are both guided to the lower rear portion of the front plate 22 and sent to a processing case or the like not shown. ing.
[0015]
As shown in FIG. 2, a passage 41 for the tape 27 is formed in the component take-out portion 40 of the tape feeder 4. The tape 27 led out from the reel 26 moves along the passage 41, and the Are provided with a tape protection member 42 and a shutter member 43.
[0016]
The tape protection member 42 has an opening portion 42a for taking out parts on the front side (right side in FIG. 2), and a notch portion 42b for shutter member guide connected to the opening portion 42a on the rear side. Further, an engagement member 44 for peeling the cover tape is provided on the rear side (left side in FIG. 2). After the cover tape 27b is peeled off at the position of the engaging member 44, when the component storage portion 27c of the tape main body 27a reaches the position of the opening portion 42a, the component storage portion 27c is opened upward and the component 28 is released. It is configured so that it can be taken out.
[0017]
The shutter member 43 is slidably disposed on the upper surface of the tape protection member 42 so as to be slidable in the front-rear direction (left-right direction in the figure). The portion corresponding to the position where the head 28 is taken out by the head 13 is closed (indicated by the solid line in the figure), and when the part is taken out, it slides in conjunction with the tape feed mechanism 30 (slides backward from the position shown in the figure). And the opening portion 42a is fully opened so that parts can be taken out. Thereby, except when the component is taken out by the head 13, a part of the open portion 42 a can be blocked by the shutter member 43 to prevent the component 28 from popping out.
[0018]
Further, as shown in FIG. 3, an auxiliary member 45 that elastically contacts the lower surface of the tape 27 is provided below the tape passage portion in the component take-out portion 40 so that the tape 27 is pressed against the tape protection member 42. It is configured.
[0019]
Specifically, as shown in FIG. 4, for example, the auxiliary member 45 has a tape contact portion 45a formed by bending the center of the plate spring upward, and a fixed portion 45b at one end and a support portion at the other end. It is assumed that 45c is provided. As shown in FIG. 3 (b), the auxiliary member 45 uses bolts 46 so that the entirety of the auxiliary member 45 is substantially buried in the groove 22 b provided along the passage 41 of the tape 27 on the upper surface of the front plate 22. It is fixed by the fixing portion 45b of the auxiliary member 45. The fixed auxiliary member 45 is supported by the fixing portion 45b and the support portion 45c, and the tape contact portion 45a elastically contacts the lower surface of the tape 27 and acts to constantly press the tape 27 against the tape protection member 42. .
[0020]
For this reason, even if the thickness of the tape 27 may change, the tape 27 can be moved in a state where the tape 27 is in close contact with the tape protection member 42 by the auxiliary member 45, and is supplied to the component extraction unit 40. It is possible to prevent the tape 27 from being lifted. Therefore, even if the supplied component is an extremely small component, problems such as the standing of the component in the component storage portion 27c of the tape 27 and the jumping out of the component do not occur, and the component can be reliably sucked. In addition, since the auxiliary member 45 has an extremely simple configuration in which only the auxiliary member 45 is provided below the tape passage portion, it is easy to manufacture and assemble.
[0021]
As mentioned above, it cannot be overemphasized that the tape feeder of this invention is not limited to the specific structure of above-described embodiment, It is good also as a structure which changed suitably, added or deleted the structure as needed.
[0022]
For example, in the above, an example in which the auxiliary member 45 is configured by a plate spring having the shape shown in FIG. 4 has been described. However, the present invention is not limited to this, and the tape is protected by elastic contact with the lower surface of the tape. Any form may be used as long as it acts to press the tape against the member. For example, the tape contact member may be held by a coil spring.
[0023]
【The invention's effect】
As described above, according to the tape feeder of the present invention, the shutter member can prevent the part from popping out by closing the opening except when the part is taken out, and the shutter member slides to the non-closed position when the part is taken out. The part can be taken out. Further, an auxiliary member located below the tape passage portion is in elastic contact with the lower surface of the tape so as to always press the tape against the tape protection member. For this reason, even if the thickness of the tape may change, the tape can be moved in a state where the tape is in close contact with the tape protection member by the auxiliary member, and the tape supplied to the component take-out portion can be lifted. Can be prevented. Therefore, even if the supplied component is a very small component, problems such as the standing of the component in the component storage portion of the tape and the protruding of the component do not occur, and the component can be reliably sucked. In addition, since the auxiliary member has an extremely simple structure in which only the auxiliary member is provided below the tape passage portion, manufacture and assembly are easy.
[Brief description of the drawings]
FIG. 1 is a side view showing an overall configuration of a tape feeder according to the present invention.
FIGS. 2A and 2B are views showing details of a component extraction portion of the tape feeder according to the present invention, wherein FIG. 2A is a top view and FIG.
FIGS. 3A and 3B are diagrams showing details of a part extraction portion of the tape feeder according to the present invention, wherein FIG. 3A is a cross-sectional view taken along the line Q-Q of FIG. 2B, and FIG. A PP sectional view is shown.
FIGS. 4A and 4B are diagrams illustrating a configuration example of an auxiliary member used in a component take-out portion of a tape feeder according to the present invention, where FIG. 4A is a top view and FIG. 4B is a side view.
[Explanation of symbols]
4 Tape Feeder 27 Tape 40 Parts Extraction Part 42 Tape Protection Member 42a Opening Part 43 Shutter Member 45 Auxiliary Member

Claims (1)

A tape containing a large number of parts at regular intervals;
A tape lead-out portion for leading out this tape;
A component take-out unit that holds the tape led out from the tape lead-out unit in a state where the component can be taken out;
In this component take-out part, a tape protection member having an open part for taking out the component at a predetermined position located above the tape passage part,
A shutter member provided on the tape protection member, which closes at least a part of the open portion except when the parts are taken out, and slides to a non-closed position when the parts are taken out;
An auxiliary member that is positioned below the tape passage portion in the component take-out portion and elastically contacts the lower surface of the tape so as to press the tape against the tape protection member ;
The auxiliary member has a tape contact portion in which the center of the plate spring is bent upward, a fixing portion provided on one end side thereof, and a flat plate-like support portion provided on the other end side. The fixing portion is fixed to a groove provided along the path of the tape, the entire surface of the support portion is slidably in contact with the bottom of the groove, and the tape contact portion is a lower surface of the tape. A tape feeder wherein the tape is always pressed against the tape protection member by elastically contacting the tape protection member .

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