JP4420327B2 - Parts supply device - Google Patents

Description

  The present invention relates to a component supply apparatus that peels a cover tape from a storage tape and intermittently feeds electronic components stored in a component storage portion of a carrier tape to a component pick-up position. More specifically, the present invention relates to a component supply device including a suppressor that can be opened and closed with a support shaft as a fulcrum and that guides intermittent feeding by pressing the storage tape from above.

This type of component supply device is disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-9490. However, when a storage tape for storing electronic components is loaded into the component supply device, the suppressor is opened.
JP 2002-9490 A

  However, the operator had to load the storage tape into the component supply device while supporting the open suppressor with his hand.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the operation of loading a storage tape into a component supply device by enabling the suppressor to be kept open.

For this reason, the first invention is a component supply device that peels the cover tape from the storage tape and intermittently feeds the electronic components stored in the component storage portion of the carrier tape to the component pick-up position. And a suppressor for holding the storage tape from above and guiding its intermittent feed, a lock device for maintaining this state when the suppressor is closed, and releasing the holding by the lock device to As a fulcrum, the suppressor is rotated by a latching member provided on the suppressor so as to maintain the opened state, and the latching member is latched when the suppressor is rotated and opened. Therefore, a lock member provided on the component supply device main body is provided so as to overlap the passage of the cover tape .

  A second invention is characterized in that, in the first invention, the lock member is formed of a spiral leaf spring provided with a locking portion for locking the locking member.

  A third invention is characterized in that, in the first or second invention, a stopper is provided for restricting an opening angle when the suppressor is opened by rotating with the support shaft as a fulcrum.

The present invention holds a suppressor, a locking device for maintaining this state when the suppressor is closed, and a state in which the holding by the locking device is released and the suppressor is rotated and opened with the supporting shaft as a fulcrum. a locking member provided on Subeku suppressor, provided in the component supplying device body superimposed with passage of the cover tape in which the locking member is a locking when opening by rotating the suppressor consists of a leaf spring Therefore, the space can be saved and the operator can operate the suppressor, and the suppressor can be opened by the lock member provided in the component supply device main body so as to overlap the passage of the cover tape. The suppressor can be returned to the closed state by operating the suppressor. As a result, the storage tape to the component supply device can be returned to the closed state. Hama it is possible to improve the work. Further, according to the third invention, when the suppressor is opened, the opening angle can be limited, so that it is possible to avoid damaging the component supply device body or the electronic component mounting device body.

  Hereinafter, an embodiment of a component supply apparatus according to the present invention will be described with reference to the drawings. FIG. 1 shows a component mounting apparatus using a component supply apparatus according to the present invention. This component mounting apparatus has an XY table 1 on which a printed circuit board 5 on which a chip-like electronic component (hereinafter, abbreviated as “chip component”) 4 is mounted is placed on the X-axis. The motor 2 and the Y-axis motor 3 are configured to move in the XY directions by rotation. The component mounting apparatus also includes a supply table 6 on which a number of component supply devices 7 for supplying chip components 4 are arranged. A nut (not shown) is fixed to the supply base 6, and a ball screw 9 is fitted to the nut. When the ball screw 9 is rotated by driving the supply table drive motor 8, the supply table 6 is guided by the linear guide 11 through the nut with which the ball screw 9 is fitted and moved in the X direction.

  Further, this component mounting apparatus has a rotary table 12, and this rotary table 12 is configured to intermittently rotate clockwise as a cam (not shown) is rotated by driving of a drive motor (not shown). Eight mounting heads 14 are arranged at equal intervals according to the intermittent pitch on the outer edge portion of the lower surface side of the rotary table 12, and each mounting head 14 has four suction nozzles 13 for sucking the chip component 4. A book is provided.

  The mounting head 14 is attached to a lower portion of a head lifting / lowering shaft (not shown) penetrating through the rotary table 12 and moved up and down by a not-shown head driving shaft (not shown). It is configured to move up and down. The suction nozzle 13 provided in the mounting head 14 is configured to suck and take out the chip component 4 from the component supply device 7.

  A stop position where the mounting head 14 stops in order for the suction nozzle 13 to suck the chip component 4 is a suction station, and the suction nozzle 13 sucks the chip component 4 in this suction station. The position at which the mounting head 14 stops next is the recognition station. In this recognition station, the component recognition camera 15 images the chip component 4 sucked by the suction nozzle 13, and the recognition process is performed based on the captured image. The apparatus recognizes the positional deviation of the chip component 4.

  The position where the mounting head 14 stops next to the recognition station is an angle correction station. Based on the recognition result recognized by the recognition processing device in the angle correction station, the nozzle rotation roller 16 moves the suction nozzle 13 to θ. By rotating in the direction, the positional deviation of the rotation angle of the chip component 4 is corrected.

  The stop position where the mounting head 14 stops after this angle correction station is the mounting station, and the chip component 4 sucked by the suction nozzle 13 stopped in this mounting station is placed on the XY table 1. It is comprised so that 5 may be mounted | worn.

  The component feeding operation of the component feeding device 7 is performed by raising and lowering a tape feed raising / lowering lever 32 (described later) provided above the component feeding device 7 stopped at a position where the chip component 4 is attracted by the movement of the feeding table 6. It is comprised so that the parts feeding operation which is.

  The component supply device 7 is detachably attached to the upper surface of the supply table 6. This attachment is configured to be performed as follows. First, the operator grasps the holding portion 25 and the swing lever 26 shown in FIG. 2 and swings the swing lever 26 clockwise with the shaft 27 as a fulcrum against the urging force of the spring 28. Then, with the engaging portion 29 at the tip of the swing lever 26 rotated in the clockwise direction, the mounting pins 24 provided at the front and rear of the lower part of the component supply device 7 are attached to the mounting holes ( (Not shown). Thus, after the mounting pin 24 is inserted into the mounting hole, the swing of the swing lever 26 is restored using the biasing force of the spring 28 and the engaging portion 29 is projected on the supply base 6. By engaging with an engaging part (not shown), the component supply device 7 can be attached to the supply base 6.

  The component supply device 7 includes a tape reel (not shown) wound with a storage tape for storing electronic components at equal intervals, a tape delivery device 30 for feeding the storage tape from the tape reel, and a carrier constituting the storage tape. The cover tape winding device 31 is configured to wind the cover tape Ca from the tape Cc. The storage tape stores the chip components 4 in the component storage recesses Cb formed at an equal interval pitch, and the carrier tape Cc in which the tape feed holes are formed at an equal interval pitch, and the upper surface opening of the component storage recesses Cb. And a cover tape Ca covering the surface.

  Reference numeral 32 denotes a tape feed raising / lowering lever that moves up and down to move the drive lever 33 of the tape feeding device 30 up and down. The tape feeding raising / lowering lever 32 is driven in synchronization with the rotary table 12 and moves up and down. The storage tape wound in the tape reel is intermittently fed, and the chip component 4 stored in the storage recess of the storage tape is supplied to the component extraction position (suction position) of the suction nozzle 13. Then, the cover tape Ca is peeled off immediately before this suction position, and the chip component 4 is sucked and taken out by the suction nozzle 13 that descends.

  The tape delivery device 30 is rotatable around a support shaft 41 to feed out the carrier tape Cc, and has a tape feed tooth 40A that fits in a tape feed hole of the carrier tape Cc formed in the peripheral portion and the support shaft. A sprocket 40 in which inner teeth (not shown) are formed on the outer peripheral side surface (step surface) of a circular recess formed around 41, and a feed claw (not shown) that can rotate about the support shaft 41 as a fulcrum. ), A swinging body 42 that rotates the sprocket 40, a stopper 43 that locks with the abutting portion 42A of the swinging body 42 to regulate the rotational angle position, and a swinging body drive mechanism that drives the swinging body 42. 45.

  The tape delivery device 30 incorporates a one-way clutch torque limiter, and the sprocket 40 can rotate only in the feeding direction of the storage tape.

  The feed pawl is rotatably attached to a pivot (not shown) on the rocking body 42, but is always urged by a spring and pressed against the inner teeth of the sprocket 40.

  The oscillating body driving mechanism 45 will be described. The driving mechanism 45 drives the oscillating body 42 using a tape feed lifting lever 32 and a spring 57 described later as a driving source, and one end of the oscillating body 42 is connected to the oscillating body 42 via a pin 50. The link lever 51 is pivotally connected to the other end of the link lever 51 via a pin 52, and the central portion is pivotally supported by the support shaft 53. A transmission lever 55 having a shutter opening / closing pin 56 at the other end and a drive lever 33 connected at one end to the transmission lever 55 via the pin 54 are configured. The transmission lever 55 is urged clockwise by the spring 57 in FIG.

  Reference numeral 60 denotes a suppressor having a generally U-shaped cross section, and the carrier tape Cc after peeling of the storage tape and the cover tape Ca is always pressed against the tape delivery device main body 7A so that they are not detached from the tape delivery device main body 7A. It acts so that the tape feed hole of the carrier tape Cc is not removed from the tape feed tooth 40A of the sprocket 40.

The suppressor 60 is rotatably provided on the tape delivery device main body 7A via a rear pin 61, and a locking pin 62 provided on the front end portion of the side surface is a lock claw of the lock device 63 of the tape delivery device main body 7A. The above-mentioned operation is ensured by locking to 64. The locking device 63 is biased in a direction in which one end is fixed to the lower part of the front end of the tape delivery device main body 7A and is made of a leaf spring and a coil spring is inserted into the pin 66 and opened. The lock claw 64 is connected to the support piece 65 through the pin 66 so as to be regulated.

  Further, a locking member 68 is integrally provided at the rear end portion of the suppressor 60, for example, and the locking pin 62 and the locking claw 64 are unlocked, and the suppressor 60 is rotated around the pin 61 as a fulcrum. In this case, the locking member 68 can be locked to the locking portion 69A of the lock member 69. The lock member 69 is made of a leaf spring and is formed in a counterclockwise spiral shape in FIG. 2, and its central portion is fixed to a mounting plate 67 provided on the upper part of the tape delivery device main body 7A, and has an outer end portion. On the contrary, the locking portion 69A is formed by rewinding clockwise. Although the locking member 68 is provided integrally with the suppressor 60, it may be formed as a separate member from the suppressor 60.

  Further, an opening is formed in the upper surface intermediate portion of the suppressor 60, and a shutter 70 is provided so as to be movable in the longitudinal direction of the suppressor 60 so as to cover the opening. That is, two guide pins 60A are erected on the suppressor 60, and the guide pins 60A are fitted on the heads of the guide pins 60A in a state where the guide pins 60A are fitted in elongated guide grooves 70C opened on the upper surface of the shutter 70. The guide plate 70D is fixed, and the shutter 70 can move in the longitudinal direction of the suppressor 60 while the guide groove 70C is guided to the guide pin 60A on the suppressor 60.

  Accordingly, when the drive lever 33 is lowered, the transmission lever 55 swings counterclockwise in FIG. 2 with the support shaft 53 as a fulcrum, so that the shutter opening / closing pin 56 is fitted in the engagement groove 70B of the side piece 70A of the shutter 70. As a result, the shutter 70 moves backward. By this movement, a component outlet 71 is formed, and the suction chip 13 can suck and take out the first chip component 4 in the component storage recess Cb of the carrier tape Cc.

  Further, the shutter 70 is formed with a slit 72 which becomes a fulcrum when the cover tape Ca is peeled off, and the peeled cover tape Ca passes from the lower side of the shutter 70 upward through the slit 72 and is folded back. Then, it is wound up by the cover tape winding device 31 via the guide rollers 75, 76, 77. The cover tape take-up device 31 is detachably attached to the attachment plate 67 and can be turned around a take-up reel 78 for taking up the cover tape Ca, and a support shaft 81 with one end via a pin 79. A swing lever 80 that is pivotably connected to the drive lever 33 and whose abutment portion 85 at the other end abuts against a stopper 86 to restrict the rotation, and a latching portion 82 of the swing lever 80. A ratchet lever 84 in which a tension spring 83 is stretched between a stop pin 87 and a ratchet gear (not shown) integrally formed with the take-up reel 78 and is pivotally supported by the ratchet lever 84. It consists of nails (not shown).

  Therefore, when the swing lever 80 is rotated clockwise in FIG. 2, the ratchet lever 84 is swung clockwise via the tension spring 83, the ratchet pawl is engaged with the ratchet gear, and the take-up reel 78 is The cover tape Ca, which is rotated clockwise by an angle and attached to the upper surface of the carrier tape Cc, is peeled off from the carrier tape Cc through the slit 72 of the suppressor 60 that holds the storage tape, and is wound around the take-up reel 78. Will be taken.

  The guide roller 75 is rotatable around a support shaft 75A, and an upper limit stopper 75B is fixed to the base end portion of the support shaft 75A (see FIG. 8). When the locking with the 64 is released and the suppressor 60 is rotated about the pin 61 as a fulcrum, the locking member 68 is locked to the locking portion 69A. The stopper 75B limits.

  With the above configuration, the operation will be described below. First, the tape delivery device 30 in the standby state is shown in FIGS. 2 and 3, and when it is driven in synchronization with the rotary table 12 in this state and the tape feed lift lever 32 is lowered, as shown in FIG. The drive lever 33 is also lowered, the transmission lever 55 rotates counterclockwise with the support shaft 53 as a fulcrum against the urging force of the spring 57, and the link lever 51 is moved to the right (front) to move the rocking body. 42 is rotated counterclockwise opposite to the tape feeding direction with the support shaft 41 as a fulcrum. Then, by the rotation of the rocking body 42, the feeding claw gets over by one mountain of the internal teeth of the sprocket 40.

  At this time, due to the counterclockwise rotation of the transmission lever 55, the shutter opening / closing pin 56 is fitted in the engagement groove 70B of the side piece 70A of the shutter 70, so the shutter 70 moves rearward. By this movement, the component take-out opening 71 is opened, and the suction nozzle 13 can pick up and take out the first chip component 4 in the component storage recess Cb of the carrier tape Cc (see FIG. 6).

  Further, when the tape feed raising / lowering lever 32 is lowered as described above, the swing lever 80 is rotated clockwise in FIG. 5 to swing the ratchet lever 84 clockwise via the tension spring 83, and the ratchet pawl is moved to the ratchet. Since it is meshed with the gear, the take-up reel 78 is rotated clockwise by a predetermined angle, and the cover tape Ca affixed to the upper surface of the carrier tape Cc is passed through the slit 72 of the suppressor 60 holding the storage tape. The tape is wound around the take-up reel 78 while being peeled off from the carrier tape Cc.

  When the tape feed lift lever 32 is lifted, the drive lever 33 is also lifted by the urging force of the spring 57, the transmission lever 55 is rotated clockwise around the support shaft 53, and the link lever 51 is moved to the left (rear). The rocking body 42 is rotated clockwise around the support shaft 41 as a fulcrum. Then, by the clockwise rotation of the oscillating body 42, the feed claw meshing with the internal teeth of the sprocket 40 (more precisely, the grooves forming the teeth) causes the sprocket 40 to move in the carrier tape feeding direction (clockwise). Rotate.

  Accordingly, since the tape feed teeth 40A are fitted in the tape feed holes of the carrier tape Cc, the carrier tape Cc is fed by one pitch. At this time, since the shutter opening / closing pin 56 is fitted in the engagement groove 70B of the side piece 70A of the shutter 70 by the clockwise rotation of the transmission lever 55, the shutter 70 moves forward, and the component outlet 71 Is closed (see FIG. 4).

  As described above, the peeling operation of the cover tape Ca and the feeding operation of the carrier tape Cc are performed, and the chip components 4 are sequentially taken out from the carrier tape Cc by the suction nozzle 13 and mounted on the printed circuit board 5. .

  Then, an operation of loading a new storage tape into the component supply device 7 when a so-called component shortage occurs due to removal of the chip component 4 from the storage tape will be described. First, the component supply device 7 that is out of components is removed from the supply table 6 and moved onto the work table. Then, the tape reel is removed from the component supply device 7, a new tape reel wound with the storage tape is attached to the component supply device 7, and the storage tape is stretched to a certain length from the tape reel storing the new storage tape. Then, the new storage tape C is loaded and set in the component supply device 7 in a state of being laid on the work table.

  That is, the operator presses the leaf spring support piece 65 upward with a finger to release the locking pin 62 and the locking claw 64 of the locking device 63 from being locked, and the suppressor 60 is counterclockwise with the pin 61 as a fulcrum. Rotate in the direction. When this operator lifts the suppressor 60 upward, the locking member 68 behind the pin 61, which is the rotation fulcrum, pivots counterclockwise and descends, contacting the locking portion 69A of the locking member 69, The lock member 69 made of a leaf spring is bent. And if it bends to some extent, the said locking member 68 will fit and lock to the locking part 69A.

  Therefore, when the operator operates the suppressor 60, the open state of the suppressor 60 can be reliably held, and the storage tape is loaded into the component supply device 7. However, this loading workability or work efficiency can be improved. it can. Further, since the upper limit stopper 75B is fixed to the base end portion of the support shaft 75A, the locking member 68 is locked to the locking portion 69A when the suppressor 60 is rotated about the pin 61 as a fulcrum. Further rotation of the suppressor 60 is restricted by the upper limit stopper 75B, so that damage to the cover tape winding device 31, other parts of the component supply device 7, or the electronic component mounting device main body is prevented.

  Then, after releasing the hold of the suppressor 60 after the storage tape is loaded into the component supply device 7, the operator may apply a load downward to the front end portion of the suppressor 60. When the suppressor 60 is rotated in the clockwise direction, the locking member 68 is also rotated and raised in the clockwise direction. Therefore, the locking member 69 made of a leaf spring is bent, and when it is bent to some extent, the locking member 68 is locked. The locking with the portion 69A is released. That is, when the operator operates the suppressor 60, the suppressor 60 can be held in an open state, and the held state can also be released.

  When releasing the hold of the suppressor 60, the load applied to the front end portion of the suppressor 60 is set to 100 to 200 gf in order to give an appropriate click feeling to the operator, and the leaf spring leaf spring lock at that time is used. The amount of deflection of the member 69 is set to 0.5 mm or more. Since the lock member 69 is made of a leaf spring and is formed in a spiral shape, the lock member 69 can be made as small as possible, and can be provided so as to overlap the passage of the cover tape Ca as shown in FIG. A large working load can be obtained in a space-saving manner, stress concentration occurs in all of the spiral corner portions, the stress is dispersed, and plasticity is difficult.

  Then, holding the suppressor 60 in an open state is released, and the suppressor 60 is further lowered to engage the locking pin 62 and the locking claw 64 of the locking device 63. Thereafter, the component supply device 7 loaded with the new storage tape is attached to the supply base 6 so that the next chip component 4 can be mounted.

  The electronic component mounting apparatus has been described by taking a so-called high-speed chip mounter as an example. However, the electronic component mounting apparatus is not limited to this and may be applied to a multifunction chip mounter.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

It is a top view of an electronic component mounting apparatus. It is a side view of the component supply apparatus of a standby state. It is a principal part enlarged view of FIG. It is a top view of a shutter of a suppressor and a closed state. It is a principal part enlarged view of the components supply apparatus of the state which the tape feed raising / lowering lever lowered. It is a top view of a suppressor and an open shutter. It is a principal part enlarged view of the components supply apparatus of the state which rotated the suppressor upward. It is AA sectional drawing of FIG.

Explanation of symbols

7 parts supply device 60 suppressor 62 locking pin 63 locking device 64 locking claw 68 locking member 69 locking member 69A locking portion

Claims (3)

In a component supply device that peels a cover tape from a storage tape and intermittently feeds electronic components stored in a component storage part of a carrier tape to a component pick-up position, the component tape can be opened and closed with a support shaft as a fulcrum and the storage tape A suppressor that presses and guides the intermittent feed, a lock device that maintains this state when the suppressor is closed, and releases the holding by the lock device and rotates the suppressor with the support shaft as a fulcrum. a locking member state provided in the suppressor to hold the open Te, passage of the cover tape in which the locking member when opening by rotating the suppressor is a plate spring is engaged And a lock member provided on the component supply device main body.   The component supply device according to claim 1, wherein the lock member is formed of a spiral leaf spring provided with a locking portion that is locked by the locking member. 3. The component supply device according to claim 1, further comprising a stopper that limits an opening angle when the suppressor is opened by rotating the support shaft as a fulcrum. 4.

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