JP5980594B2 - Reel stocker and electronic parts supply cart - Google Patents

Description

  The present invention is provided with a reel stocker for holding a reel around which a supply tape storing electronic components at a predetermined pitch and a plurality of component supply units for feeding the supply tape are attached, and a plurality of reel stockers are detachably stored. It relates to an electronic parts supply cart.

  A plurality of reels around which supply tape is wound are placed on a feeder cart that is a carriage, a supply tape supplied from the reel is sent, and a plurality of electronic component units that supply electronic components are placed on a feeder cart, and parts A mechanism for supplying electronic components from a supply tape by a supply unit is described in Patent Document 1.

  Then, for example, one reel is mounted on the feeder cart for each component supply unit, and when the remaining amount of supply tape sent from the reel, that is, the remaining number of electronic components is reduced, the operator brings a new reel. Thus, the old reel storage tape with fewer remaining electronic components and the new reel storage tape are connected so that the electronic components can be supplied continuously.

JP 2011-108909 A

  However, in the feeder cart as described above, a large number of component supply units are placed, and if one reel is placed on the feeder cart for each of these component supply units, the supply tape corresponding to each component supply unit Each time the remaining amount is low, the worker needs to bring a new reel, which is cumbersome, delays the preparation of the new reel, and delays in connecting the storage tapes. May occur.

  Further, in order to avoid the occurrence of component breakage as described above, there is a mechanism for placing as many reels as the number of component supply units placed on the feeder cart to avoid component breakage as much as possible. It is difficult to place a large number of reels on the feeder cart corresponding to the space of the feeder cart or the component supply unit placed on the feeder cart, and the above-described component breakage may occur.

  In addition, the number of component supply units that must be handled in a component mounting line in which a plurality of electronic component mounting devices for mounting electronic components supplied from a component supply unit to a substrate are connected to a feeder cart. When a dual feeder, which is a component supply unit in which two component supply paths (lanes) are provided in parallel, is placed on the feeder cart, more reels are placed in the feeder cart in advance. Although it is desirable to place them, it is difficult to place a plurality of reels on the feeder cart corresponding to the feeders, and the possibility of parts being cut increases.

  Accordingly, the present invention provides a reel stocker that can efficiently store a plurality of reels and can be mounted on a component supply cart that is a feeder cart, and an electronic component supply cart that can mount the reel stocker and can avoid component breakage as much as possible. With the goal.

For this reason, the first invention is a reel stocker for storing a plurality of reels for winding a supply tape storing electronic components at a predetermined pitch.
The side placed on the parts supply cart is the rear side,
Left and right side plates provided with an interval, each having a horizontal portion that is a front portion of the reel stocker and a vertical portion that is located above the horizontal portion and is perpendicular to the horizontal portion. The left and right side plates,
A reel storage portion is provided in the horizontal portion, the vertical portion, and a central portion where the horizontal portion and the vertical portion intersect,
A reel storage / extraction space larger than the diameter of the reel is formed obliquely in front of the reel stored in the storage portion provided in the central portion .

According to a second aspect of the present invention, there is provided a reel stocker for storing a plurality of reels for winding a supply tape storing electronic components at a predetermined pitch.
The side placed on the parts supply cart is the rear side,
Left and right side plates provided with an interval, each having a horizontal portion that is a front portion of the reel stocker and a vertical portion that is located above the horizontal portion and is perpendicular to the horizontal portion. The left and right side plates,
Provided between the side plates, the horizontal portion, the vertical portion, and a plurality of storage spaces each having a reel storage portion at a central portion where the horizontal portion and the vertical portion intersect ,
A reel storage / extraction space larger than the diameter of the reel is formed obliquely in front of the reel stored in the storage portion provided in the central portion .

  According to a third aspect, in the first or second aspect, the horizontal portion, the vertical portion, and the central portion include a roller that rotatably supports the reel.

According to a fourth aspect of the present invention, in the electronic component mounting carriage in which a plurality of electronic component supply units are detachably mounted, a supply tape is supplied to the electronic component supply unit. The reel stocker described in 1 is provided.

  The present invention relates to a reel stocker that can efficiently store a plurality of reels and can be mounted on a component supply cart that is a feeder cart, and an electronic component supply cart and an electronic component mounting apparatus that can mount the reel stocker and avoid as much as possible of component breakage. Can be provided.

It is a top view of an electronic component mounting apparatus. It is a figure which shows the structural example of a general supply tape. It is a figure which shows the structure of a component supply unit. It is a figure which shows one Example of the operation panel surface of the operation panel of a component supply unit. It is a perspective view which shows the supply tape and tape chute which are used for this invention. It is a figure for demonstrating one Example of the 3rd sprocket fitted to the sprocket hole of the supply tape in the feeder of this invention. It is a perspective view which shows the supply tape and tape chute which are used for this invention, and is the same figure as FIG. 5A. It is a figure for demonstrating one Example of the 1st sprocket fitted to the sprocket hole of the supply tape in the feeder of this invention. It is a schematic front view of an electronic component supply cart. It is a schematic side view of an electronic component supply cart. It is a front view of a reel stocker. It is a side view of a reel stocker. It is a front view of the reel stocker in the state in which the reels are stored. It is a figure which shows the first half step of loading operation | movement of a supply tape. It is a figure which shows the latter half step of the loading operation | movement of a supply tape. It is a figure for demonstrating one Example of the loading operation | movement in the feeder of this invention. It is a figure for demonstrating one Example of the loading operation | movement in the feeder of this invention. It is a figure for demonstrating one Example of the loading operation | movement in the feeder of this invention. It is a figure for demonstrating one Example of the loading operation | movement in the feeder of this invention. It is a figure for demonstrating one Example of the forced delivery operation | movement in the feeder of this invention.

  The first embodiment of the present invention will be described below. FIG. 1 is a plan view showing a configuration of an embodiment of an electronic component mounting apparatus according to the present invention. The electronic component mounting apparatus 1 has a total of four blocks, that is, two blocks LU and LD on the upper left and lower sides, and two blocks RU and RD on the right side, and a control device 80. In the drawing, reference numerals are basically written only for LU blocks.

  In each block, a component supply area 13 in which a component supply carriage on which many component supply units are mounted is set, a mounting head 6, a mounting head body 11 for moving the mounting head 6, and an electronic component suction in the suction head 6. A component recognition camera 19 that images the holding state is provided. The mounting head body 11 moves to the left and right on the left / right moving rail 18 constituted by the linear motor, and moves up and down the up / down moving rail 16 constituted by the linear motor in the same manner as the left / right moving rail 18. Moving.

  With such a configuration, the suction nozzle that is the component holding means of the mounting head 6 fixed to the mounting head body 11 sucks the electronic component from the component supply area 13, and the component recognition camera 19 monitors the suction holding state of the electronic component. Then, the substrate moves to a predetermined position on the substrate P, and the sucked electronic component is mounted on the substrate P.

Such an operation is performed in four blocks. Therefore, in the center, there are four chutes 5a to 5d for transporting the substrate P, the upper two chutes 5c and 5d are on the upper block substrate transport line U, and the lower two chutes 5a and 5b are on the bottom. A substrate transport line D for the side block is configured. The substrate P is distributed by the delivery unit 7 and carried into the substrate transport line U or D. Note that the mounted member on which the electronic component is mounted is not limited to the printed board, and may be a lead frame, a flexible board, or the like, for example.

FIG. 2 is a diagram illustrating a configuration example of a general supply tape used in the present embodiment.

  In the configuration, the supply tape 60 has a carrier tape 62 having a pocket 63 for accommodating the electronic component 4 and a cover tape 61 covering the carrier tape, and the carrier tape 62 has a sprocket (described later) at one end thereof. A substantially circular sprocket hole (tape feed hole) 64 that engages with the reference tape and moves the supply tape 60 at regular intervals (constant pitch). Next, the recording component supply unit 5 will be described.

FIG. 3 is a diagram showing the configuration of an embodiment of the component supply unit of the present invention. In addition, the component supply unit 2 of FIG. 3 does not show the supply tape 60. Further, in the component supply unit 2 of FIG. 3, the left side of the screen is the downstream direction (forward direction: the direction of arrow A), and the right side of the screen is the upstream direction (reverse direction: the direction of arrow B). The supply cassette control unit 37 is connected to necessary equipment of the component supply unit 2 (for example, a tape insertion detection sensor 31, a sprocket drive motor 33, a tape push detection sensor 45, a sprocket drive motor 47, etc.) by a control line (not shown). doing.

The component supply unit 2 in FIG. 3 has two lanes (conveyance paths) configured in the same way for feeding the supply tape. Hereinafter, the configuration of one lane will be described. Tape holding plate 38 for pressing the supply tape 60 inserted from the insertion port C, the outlet 44 for the suction nozzle of the mounting head 6 to pick up electronic components, and cassette fixing for fixing the component supply unit 2 to the component supply cart 50 The unit 35 is provided. The tape holding plate 38 is used to hold the supply tape 60 from above on the tape chute 2S (see FIG. 5A or 6A) so that the sprocket hole 64 does not come off from the teeth 32h during loading. It is a simple configuration. The component supply unit 2 is provided with a third sprocket 32 for inserting the tip end portion 60 a of the supply tape 60 into the component supply unit 2 below the tape pressing plate 38. When the third sprocket 32 rotates so as to move the supply tape 60 in the downstream direction, the teeth 32h of the third sprocket 32 fitted to the sprocket holes 64 of the supply tape 60 rotate in the forward direction (A direction). To do. As a result, the supply tape 60 moves in the forward direction and can reach the second sprocket 43. The rotation of the first to third sprockets so as to move the supply tape 60 in the downstream direction is hereinafter referred to as forward rotation. Further, the rotation of the supply tape 60 so as to move in the upstream direction is hereinafter referred to as reverse rotation. In the embodiment of FIG. 4, the three sprockets are installed in the order of the third sprocket 32, the second sprocket 43, and the first sprocket 41 from the insertion port C of the component supply unit 2.

  The teeth 32h fitted to the sprocket holes 64 are hereinafter particularly referred to as teeth 32h0. Similarly, the teeth 43h fitted to the sprocket holes 64 are hereinafter referred to as teeth 43h0. In addition, since the component supply unit 2 of FIG. 3 has the tape chute 2S provided horizontally, the teeth 32h0 and 43h0 that fit into the sprocket holes 64 of the supply tape 60 are on a vertical line passing through the rotation center of each sprocket. A tooth.

  Then, by feeding the supply tape 50, the sprocket hole 64 of the reached supply tape 60 and the teeth 43h of the second sprocket 43 are fitted. The supply tape 60 moves in the forward direction by the rotation of the second sprocket 43 and can reach the first sprocket 41.

  Therefore, the first sprocket 41 of the component supply unit 2 does not push-cut, but pulls the cover tape 61 of the supply tape 60 by the Russell process by pulling from the downstream direction.

  The component supply unit 2 also includes a sprocket drive motor 33 that drives the third sprocket 32, and a sprocket drive motor 47 that drives the first sprocket 41 and the second sprocket 43. The supply cassette control unit 37 receives information from the interface 36 for transmitting / receiving signals to / from the main body 1 and signals from the main body 1 and signals from sensors which will be described later in the component supply unit 2 via a signal transmission / reception cable (not shown). Each part is controlled, and signal exchange with the main body 1 is performed. The first sprocket 41 and the second sprocket 43 have a sprocket drive motor 47 that simultaneously and synchronously drives each sprocket via a worm gear 46 that meshes with a worm wheel (teeth 41H and 43H) provided concentrically. Similarly, the sprocket 32 has a sprocket drive motor 33 that drives the sprocket 32 via a worm gear 34 that meshes with a worm wheel (teeth 32H) provided concentrically. Note that, for example, the worm gear 46 is geared on the same shaft at a position where it meshes with the teeth 41H and 43H of the respective sprockets.

  In addition, the component supply unit 2 includes an operation panel 48 in the vicinity of the insertion slot C of the supply tape 60 and the tape pressing plate 38. In FIG. 3, the operation panel 48 is provided on the surface of the feeder handle for carrying the component supply unit 2, but may be provided anywhere as long as it can be operated and visually confirmed.

  In FIG. 3, the driving sources of the third sprocket 32 and the second sprocket 43 are different and are driven independently. The second sprocket 43 and the first sprocket 41 use the same drive source (sprocket drive motor 47). That is, the supply cassette control unit 37 is a sprocket drive motor based on at least one of the control from the main body 1, the control from the operation panel 48, or the detection signal from the tape insertion detection sensor 31 or the tape push-in detection sensor 45. 33 and 47 are controlled to rotate. The sprocket drive motor 33 transmits the rotational force to the third sprocket 32 via the belt and the worm gear 34. The third sprocket 32 rotates in a predetermined direction at a predetermined rotational speed by the transmitted rotational force.

  Here, the third sprocket 32 is provided on the tape chute 2S so that the sprocket hole 64 of the tip 60a of the supply tape 60 is fitted to the teeth 43h0 of the second sprocket 43 of the component supply unit 2. The operation of pushing in the downstream direction is performed. Further, the second sprocket 43 performs an operation of pushing into the outlet 44 of the electronic component 4.

  As shown in FIG. 3, the operation panel 48 is provided on the handle 39 provided in the component supply unit 2. FIG. 4 is a diagram showing an embodiment of the operation panel surface 100 of the operation panel 48.

  The worker selects a lane to be selected on the operation panel surface 100 and presses the lane selection key 102 to select the lane. Next, when the worker presses the loading button 105 for 1 sec or longer, the supply cassette control unit 37 recognizes the operation and selects a lane.

  Further, the supply cassette controller 37 feeds the supply tape 60 in the forward direction while the worker is pushing the feed button 103, and reverses the supply tape 60 while the worker is pushing the return button 104. Send to. The supply cassette control unit 37 starts the loading operation of the component supply unit 2 when the worker presses the loading button 105.

  In addition, the digital display unit 101 displays which lane is selected and whether a loading operation or an unloading operation is being performed. As described above, the feeder usually has two left and right lanes, and can each supply one supply tape. Hereinafter, the component supply carriage 50 will be described with reference to FIGS. 7 and 8.

  Reference numerals 501 and 501 denote a substantially L-shaped frame which is provided on the left and right sides, and 51 denotes a base provided at the lower part of each frame 501 and 501. Reference numerals 52 and 52 denote casters provided on the front, rear, left and right sides of the base 51. Reference numeral 53 denotes a supply tape that is placed on the upper surface of the base 51 and is provided with the electronic components. A waste box for storing the carrier tape, and 54 is a feeder table provided on the upper part of each of the frames 501 and 501, on which a plurality of component supply units 5 are placed side by side.

  Reference numeral 55 denotes a mounting portion of a reel stocker, which will be described later, provided between the frames 501 and 501, and includes a front bottom plate 56 and an inclined plate 57 attached obliquely extending obliquely upward from the rear edge of the bottom plate. And a back plate 58 that extends upward from the upper edge of the inclined plate 57 and is attached vertically. In addition, on both the left and right side portions of the mounting portion 55, the restriction plates 59 and 59 are attached to the frames 501 and 501 obliquely.

  Hereinafter, the reel stocker 61 that is detachably mounted on the mounting portion 55 of the component supply carriage 50 will be described with reference to FIGS. 9, 10, and 11.

  .., 611, 611,... Are four substantially L-shaped side plates that are provided in parallel with a gap between each other, and are front portions of the reel stocker 61 (the portion located on the left in FIG. 10). A vertical portion 63 that is a rear portion orthogonal to the horizontal portion 62 (portion located on the right in FIG. 10), and a central portion 64 that is a corner portion where the horizontal portion 62 and the vertical portion 61 intersect. ing. Shafts 65 as a plurality of spacers for maintaining the distance between the side plates 611 are attached to the horizontal portion 62, the vertical portion 63, and the central portion 64 of each side plate 611.

  In addition, each side plate 611 of the horizontal portion 62 is provided with a plurality of spacers for maintaining the interval between the side plates 6 and two shafts 66 as reel support portions described later are spaced apart in the horizontal direction. Is installed. Each shaft 66 is provided with a roller 67 between the side plates 611. The vertical portion 63 has two shafts 68 and 69 which are a plurality of spacers for maintaining the distance between the side plates 6 and are the support portions of the reel described later, as in the horizontal portion 62. It is attached so that there is a gap and the rear shaft 69 is positioned higher than the front shaft. Each shaft 68, 69 is provided with a roller 67 between the side plates 611.

  Further, each side plate 611 of the central portion 64 is provided with a plurality of spacers for maintaining the interval between the side plates 6, and two shafts 70, which will be described later, are higher than the shaft 66. Are attached at intervals in the horizontal direction. Each shaft 66 is provided with a roller 67 between the side plates 611.

  Between the side plates 611, three reel storage portions 71, 72, 73 are formed at the positions of the horizontal portion 62, the vertical portion 63, and the central portion 64 so that the reels 67 are rotatably supported by the rollers 67. ing. As a result, in the reel stocker 61, three reels are stored in each of the three rows of storage portions between the side plates 611, and a maximum of nine reels can be stored.

  Each side plate 611 (three left side plates 611 in FIGS. 9 and 11) located on the left side of each reel storage unit 71, 72, 73 has a width of, for example, 8 mm stored in each reel storage unit. Protrusions 75, 76, and 77 that rotatably hold a reel 74 (see FIGS. 8 and 11) around which a supply tape is wound are provided so as to protrude from each side plate 611. When the reel 74 is stored, the corresponding protrusion of the protrusions 75, 76, 77 enters the through hole formed in the center of the reel 74, the through hole engages with the protrusion, and the reel 74 is stored. It is possible to avoid detaching from the part as much as possible.

  The diameter of each reel 74 is determined by a standard corresponding to the width of the supply tape to be supplied, for example, the diameter is 180 mm, for example, the same standard, and the width is equal between the side plates 611. As shown in FIG. 8, the reels 74 can be arranged and stored in the storage units 71, 72, 73 along the substantially L-shaped side plate 611 as shown in FIG. 3 reels of the same diameter can be stored in each of the three storage spaces 81, 82, 83 between the side plates 611 of the reel stocker 61, and a maximum of 9 reels of the same standard can be stored. It becomes possible. Further, on the diagonally forward side of the reel 74 accommodated in the central reel accommodating portion 73, as shown by a one-dot chain line in FIG. 8, the reel is accommodated and taken out with a width L1 in the diagonally upward direction and larger than the diameter of the reel 74. A space 78 is formed, so that the operator can easily avoid the reel 74 of the central portion 73 from being obstructed by the other reels 74 and without performing the work of removing the other reels 74. The reel can be stored or removed easily and as smoothly as possible.

  Further, the width L2 of the reel stocker 61 having the three vertical rows of storage spaces 81, 82, 83 is provided with two tape transport paths in parallel, and two component supply ports corresponding to the respective tape transport paths. Although it is larger than the width of the component supply unit (also referred to as dual feeder) 2 provided, there is only one side plate 611 between the three rows of storage spaces 81, 82, 83, and three rows of storage. The difference between the width L2 of the reel stocker 61 that secures the spaces 81, 82, and 83 and the width of the component supply unit 5 can be minimized. In particular, when a plurality of reel stockers having one row of storage portions are arranged between the left and right side plates, two side plates 611 exist between each component supply unit, for example, three rows of component supply Although the width of the unit is increased, the reel stocker 61 can reduce the width as much as possible.

  An L-shaped cover 84 is attached to the lower surface and the front surface of the horizontal portion 21. By this cover 84, it is possible to prevent dust or the like that has been contained in the waste box together with the tape when the waste box 53 is taken in and out from being attached to the reel 74 or the supply tape.

  Further, for example, by forming, for example, an L-shaped locking portion 85 that locks at an appropriate position of the component supply carriage 50 at the upper end of the side plate 611, when the reel 74 is taken out from the upper vertical portion 22, the reel stocker 74 is removed. Can be prevented from moving upward, and the removal operation of the reel 74 can be prevented from adversely affecting the feeding of the supply tape from the other reels 74.

  Furthermore, the reel stocker 61 described above has three rows of storage spaces 81, 82, and 83, but it has a single row of storage portions with three reel storage portions between the two side plates 611. A reel stocker or a reel stocker having two rows of storage portions between the three side plates 611 may be used. By using such a reel stocker or the above-described reel stocker 61 as a mechanism that can be attached to and detached from the component supply carriage 50. It becomes possible to place the tape on a parts supply cart in combination with a reel stocker that stores a wide reel for supplying a wide tape.

Hereinafter, before starting the operation of the electronic component mounting apparatus 1, the loading operation of the supply tape 60 pulled out from the reel 74 in the component supply unit 5 or the reel 74 placed on the reel stocker 61 during the operation is performed. Parts are cut off in the supplied supply tape, the reel 74 is removed from the reel stocker 61 by the operator, and the supply tape 60 pulled out from the new reel 74 of the reel stocker 61 already stored in the reel stocker 61. The loading operation in the component supply unit 5 will be described.

As shown in FIG. 12, the worker sets the supply tape 60 in the introduction part (component supply reel storage part 54 (see FIG. 2)). When the loading button 105 of the operation panel 48 is pressed, the supply cassette control unit 37 of the component supply unit 2 detects that the feed button of the operation panel 48 has been pressed and rotates the third sprocket 32 in the forward direction. Let By this rotation, as shown in FIG. 13, the supply tape 60 is sent out in the A direction, and the sprocket hole 64 at the tip end portion 60 a of the supply tape 60 reaches a position where it is engaged with the teeth of the second sprocket 43. Since the tape pressing plate 38 is provided, the supply tape 60 can be reliably pushed to the second sprocket 43 by the third sprocket 32 as described above.

  The second sprocket 43 starts rotating when a predetermined time elapses after the third sprocket 32 starts rotating and the tape insertion detection sensor 31 detects the supply tape 60. This predetermined time is shorter than the time from when the third sprocket 32 rotates until the leading end 60a of the supply tape 60 reaches the fitting position of the second sprocket 43 from the position of the tape insertion detection sensor 31.

  The tape insertion detection sensor 31 is installed in the vicinity of the tape chute 2S between the teeth 32h of the third sprocket 32 and the teeth 43h of the second sprocket 43, as shown in FIG.

  The rotation speed of the third sprocket 32 in the component supply unit 2 is lower than the rotation speed of the second sprocket 43. For this reason, the drive sources of the third sprocket 32 and the second sprocket 43 are different and are driven independently. Further, after the supply tape insertion operation is completed, the third sprocket 32 stops rotating, and the second sprocket 43 and the first sprocket 41 rotate during the normal component mounting operation.

  When the sprocket hole 64 of the supply tape 60 and the teeth 43h of the second sprocket 43 are fitted, the rotation of the second sprocket 43 is faster than the rotation of the third sprocket 32, so the supply tape 60 is synchronized with the rotation of the second sprocket 43. To do. This is because, as shown in FIGS. 5B and 7A, the third sprocket 32 has a shape in which the teeth 32 h are less likely to be caught in a round tooth shape such as a circular hill. For this reason, the sprocket hole 64 has a greater resistance to catching the teeth 43h of the second sprocket 43 than the teeth 32h of the third sprocket 32 (see FIGS. 6B and 7B). The second sprocket 43 moves according to the rotation. In FIG. 5B and FIG. 6B, the tape chute 2S is not shown.

  As described above, the rotation of the third sprocket 32 is slower than the rotation of the second sprocket 43 during the supply tape insertion operation. For this reason, the third sprocket 32 incorporates a one-way clutch 32C and rotates in the direction in which the supply tape 60 is inserted (forward direction, the direction indicated by arrow A), but in the reverse direction (the direction indicated by arrow B). Does not rotate.

  Furthermore, the teeth 32h of the third sprocket 32 have a height that is smaller than the thickness of the carrier tape 62, and have a gentle curved surface with no corners, such as a conical shape. Further, the teeth 43h of the second sprocket 43 have a height larger than the thickness of the carrier tape 62, and have an acute angle shape such as a pin shape as compared with the teeth 32h.

  In FIG. 5A or 6A, the tape chute 2S is a guide that is generally provided horizontally above the component supply unit 2 and moves the supply tape 60 along the tape chute 2S. The supply tape 60 moves while sliding on the tape chute 2S of the component supply unit 2.

  As a result, at the time of loading, when the sprocket hole 64 of the supply tape 60 is engaged with the teeth 43h of the second sprocket 43, the supply tape 60 moves according to the rotation of the second sprocket 43.

  Accordingly, the component supply unit 2 has a large distance between the third sprocket 32 and the second sprocket 43, and the fitting of the teeth of the second sprocket 43 and the sprocket holes 64, and the Even when it is impossible to simultaneously fit the teeth of the three sprockets 32 and the sprocket holes 64, the supply tape 60 can be automatically loaded.

  Thereafter, the supply cassette control unit 37 of the component supply unit 2 stops the rotation of the third sprocket 32.

  In the component supply unit 2 shown in FIG. 3, the sprocket drive motor 47 that drives the second sprocket 43 when the first sprocket 41 is driven is a servo motor, and is servo-controlled by the supply cassette control unit 37. The sprocket drive motor 33 that drives the third sprocket 32 is a DC motor and is open-controlled by the supply cassette control unit 37.

  The first sprocket 41 is a feed mechanism that mainly functions as a feed dog that determines feed positioning accuracy. For example, the first sprocket 41 can improve the posture of the supply tape 60, the stability of travelability (straightness), and the robustness by the double sprocket method combined with the second sprocket 43.

  In addition, the second sprocket 43 is a delicate insert that inserts the leading end 60a of the supply tape 60 into a tape processing section (tape indentation detection sensor 45, separation mechanism 42, outlet 44, etc.) downstream of the second sprocket 43. This is a feed mechanism for feed control. For example, the second sprocket 43 finely controls the loading operation of the leading end portion 60a of the supply tape 60 to the separation mechanism 42 by a servo motor drive capable of ensuring an ultra-low speed feed torque when the supply tape is loaded. The second sprocket 43 performs a subsidiary assisting operation of the first sprocket 41 after the leading end 60a of the supply tape 60 reaches the first sprocket 41.

  The third sprocket 32 is a feed mechanism that moves the supply tape 60 in the downstream direction until the tape pressing detection sensor 45 detects the supply tape 60. The rotation speed of the third sprocket 32 is about half of the rotation speed of the second sprocket 43 when the supply tape is loaded. As a result, even if the accumulated tape hole pitch error at the time of loading tape loading is large, the influence can be absorbed, and the teeth 43h of the second sprocket 43 are securely engaged with the sprocket holes 64 of the feeding tape 60. can do.

  In addition, the first sprocket 41 and the second sprocket 43 are arranged closest to each other, and the span is not affected by the accumulated pitch error of the sprocket holes 64 of the supply tape 60.

  As described above, the sprocket drive motor 47 that drives the first sprocket 41 and the second sprocket 43 is a servo motor to enable acceleration / deceleration control, speed control, and torque control necessary in the tape processing sequence. At the same time, the same drive source was used. The tape processing sequence will be described later with reference to the timing chart of FIG.

  In FIG. 3, the supply tape 60 is driven to be pulled by the first sprocket 41 when the normal electronic component 4 is taken out, and accordingly, the cover tape is also cut reliably. However, when the supply tape 60 is loaded (inserted into the component supply unit), the supply tape 60 is pushed into the cutter of the separation mechanism 42 by the second sprocket 43 from the tip end portion 60a. For this reason, when the supply tape 60 is moved and pressed at the speed at the time of the electronic component take-out operation, the acceleration serving as the pressing force is large. As a result, since the speed at which the supply tape 60 moves is fast, the cover tape 61 may not be cut well. Therefore, before the front end portion 60a of the supply tape 60 reaches the cutter position, the sprocket drive motor 47 is controlled to insert the supply tape 60 into the cutter of the separation mechanism 42 at a low speed and a low acceleration.

  That is, when the tape pressing detection sensor 45 detects the supply tape 60, the supply cassette control unit 37 stops the rotation of the sprocket drive motor 33 and controls the sprocket drive motor 47 to control the separation mechanism 42 at a low speed and a low acceleration. Insert into the cutter.

  As a result, in the separation mechanism 42, the cover tape 61 can be reliably cut without buckling the supply tape 60, the supply tape 60 can be moved, and the leading pocket 63 of the loaded supply tape 60 is stopped. Thereafter, the electronic component is taken out (sucked) from the pocket 63.

  During the loading operation described above or after the loading operation is completed, the operator removes the reel 74 whose parts have been cut from the reel stocker 61 and stores the new reel 74 in an empty storage section of the reel stocker 61.

  First, when starting production of a substrate P of a new substrate type, the reel 74 storing the supply tape 60 is stored in each storage section of the reel stocker 61 in order to automatically load the supply tape 60 into each lane. Four reels 74 are mounted on the reel stocker 61. As described above, each supply tape 60 is automatically loaded in each lane of each supply unit 2, and the mounting operation of the component 4 is started.

  Next, the reel 74 in which the replenishment tape 60 is accommodated is accommodated in the reel stocker 61. For replenishment of the above four lanes, the four reels 74 are placed and each of the previously accommodated reels 74 is accommodated. It is preferable that the reel 74 is stored inside the storage unit (preferably the adjacent inside). This is to prevent the preceding supply tape and the supply tape to be replenished from contacting each other.

In order to do this, the reel 74 of the preceding supply tape may move outward from what was inside. Since the reel stocker composed of three rows each consisting of three storage units is located below the four lanes of the two supply units, the supply tape is passed over almost the position directly above it. Can do. Since there are nine storage sections in these three rows, as described above, a total of eight reels for the preceding and replenishment can be stored.
Then, as shown in FIGS. 7 and 8, the supply tape 60 is supplied from the four reels 74 to the two component supply units 5 mounted side by side and each having two lanes. At this time, the reel stocker 61 can store a maximum of nine reels as described above. In addition to the four reels 74 that supply components, for example, for each lane of each component supply unit 5 At least one reel 74 can be stored in advance. In the loading operation described above, the supply tape 60 can be set in the component supply unit 2 in a short time by the loading operation from the new reel 74 stored in advance, and the components can be supplied.

  Hereinafter, a loading operation according to another embodiment will be described.

  Also in this embodiment, the electronic component mounting apparatus 1, the feeder cart 50, the supply tape 60, the component supply unit 2, the third sprocket, and the second sprocket are used.

  In this loading operation, the next supply tape 60 ′ is set in addition to the supply tape 60 of the component supply unit 2 in which the electronic component 4 is already loaded and used for component mounting, and the supply tape 60 currently in use is set. When there is no more, the next supply tape 60 'is automatically loaded.

  14 to 17 are diagrams for explaining an embodiment of the loading operation in the component supply unit of the present invention. 14 to 17, the supply tape 60 is already set in the feeder, and the electronic component mounting apparatus 1 (see FIG. 1) is continuing the component mounting operation.

  As shown in FIG. 14, the worker first removes the tape retainer plate 38, lifts the supply tape 60 currently in use, and passes over the tape retainer plate 38. Next, the leading end 60a ′ of the supply tape 60 ′ to be used next is inserted on the tape chute 2S, and the teeth 32h0 of the third sprocket 32 and the sprocket holes 64 are fitted to each other so that the tape presser plate 38 from above. Install.

  Note that the control device 80 of the electronic component mounting apparatus 1 determines whether or not it matches the feeder information to be set based on the received barcode information. If the barcode information and the feeder information match, the control device 80 operates to continue the operation as it is. If they do not match, the control device 80 outputs an alarm, alerts the worker, and reserves the supply tape 60 ′. Is not recognized as being set in the component supply unit 2.

  When the terminal end 60 ″ of the supply tape 60 in use enters the component supply unit 2 and passes through the tape insertion detection sensor 31, the tape insertion detection sensor 31 detects the supply tape 60 “none”, and each time it is detected. The control device 80 determines that the end portion 60 "of the supply tape 60 has passed when the state of" nothing "of the supply tape 60 continues for a predetermined feed amount.

  Next, when the unloaded part of the electronic tape 4 of the supply tape 60 in use reaches the outlet 44, the control device 80 recognizes the occurrence of a continuous suction abnormality due to no parts. For example, the control device 80 recognizes that there is no electronic component when the suction abnormality continues three times (detected by recognition of a sensor mounted on the mounting head 6 (not shown) or the component recognition camera 19).

  The control device 80 performs standard abnormality processing when the tape insertion detection sensor 31 does not detect the passage of the end portion 60 ″ and recognizes the occurrence of continuous suction abnormality due to the absence of components.

  However, when the tape insertion detection sensor 31 detects the passage of the end portion 60 ″ and recognizes the occurrence of a continuous suction abnormality due to no parts, the control device 80 detects the electronic parts of the supply tape 60 in use. It is determined that it has been used up and the subsequent operations are performed.

(1) Forced feeding operation of supply tape 60 in use (2) Automatic loading operation of next supply tape 60 'First, (1) Forced feeding operation of supply tape 60 in use will be described with reference to FIG. FIG. 18 is a diagram for explaining an embodiment of the forced delivery operation in the feeder of the present invention.

  As described above, when it is determined that the electronic parts of the supply tape 60 in use are used up, the control device 80 forcibly sends out the supply tape 60 in use in the forward direction.

  For example, the control device 80 controls the supply cassette control unit 37 of the component supply unit 2 to continuously rotate the noble sprocket drive motor 47 in the forward direction (arrow A direction) at a high speed, and discharge the supply tape 60 at a stretch. The supply tape 60 cannot be driven if the teeth 41h of the first sprocket 41 are disengaged. However, the supply tape 60 is discharged in the direction of arrow A due to the inertia due to the high-speed continuous rotation and the pressing force of the next supply tape 60 ′ that is fed later. .

  Next, (2) the next automatic loading operation of the supply tape 60 'is started.

  However, the supply cassette control unit 37 executes the preloading operation according to a command from the control device 80, not when the loading SW 105 is turned on. That is, the supply cassette control unit 37 receives the activation of the automatic loading operation from the control device 80, rotates the sprocket activation motor 33, checks the tape insertion detection sensor 31 after a predetermined time, and detects the supply tape 60. If it is, the loading operation is continued continuously as it is, and the loading operation is executed. The supply cassette control unit 37 checks the tape insertion detection sensor 31 after a predetermined time has elapsed, and if the supply tape 60 is not detected, does not start the loading operation, outputs an alarm, and performs the loading operation. Discontinue.

  Since the automatic loading operation is as described above, the description is omitted.

  During the forced delivery operation, “tr” indicating that the forced delivery operation is being performed is displayed on the digital display unit 101 of the operation panel 48.

  Further, when the worker presses any button on the operation panel 48 during the forced delivery operation or the automatic loading operation, the operation is interrupted in the middle.

  During the loading operation described above or after the loading operation is completed, the operator removes the reel 74 whose parts have been cut from the reel stocker 61 and stores the new reel 74 in an empty storage section of the reel stocker 61. Then, as shown in FIGS. 7 and 8, the supply tape 60 is supplied from the four reels 74 to the two component supply units 5 mounted side by side and each having two lanes. At this time, the reel stocker 61 can remove the reels that have run out of parts, store new reels, and store up to nine reels as described above, and the four reels 74 that supply the parts. In addition, for example, at least one reel 74 can be stored in advance for each lane of each component supply unit 5, and as a result, each supply tape 60 of the reel 74 stored in advance has the two components described above. It can be set in advance in each lane of the supply unit 2, and the electronic component is supplied by the supply tape sent from the new reel 7 from the reel 74 where the component has been cut off. The stop of the apparatus 1 can be avoided as much as possible, and the work of the operator can be reduced.

  In addition, the mounting part of the reel stocker 61 may be provided in the electronic component mounting unit 1 so that the reel stocker 61 can be directly attached to and detached from the electronic component mounting apparatus 1. 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.

1: Electronic component mounting device (main body) 2: Component supply unit 4: Electronic component 6: Mounting head 11: Mounting head body 13: Component supply area 21: Horizontal portion 22: Vertical portion 23: Central part, 50: parts supply cart (feeder cart), 51: base, 54: feeder table, 60, 60 ′: supply tape, 61: reel stocker, 65, 66: shaft, 67: rollers, 71, 72, 73 : Reel storage part, 74, 74 ': component supply reel, 75, 76, 77: convex part, 81, 82, 83: storage space, 611: side plate.

Claims (6)

In a reel stocker for storing a plurality of reels for winding a supply tape storing electronic components at a predetermined pitch,
The side placed on the parts supply cart is the rear side,
Left and right side plates provided with an interval, each having a horizontal portion that is a front portion of the reel stocker and a vertical portion that is located above the horizontal portion and is perpendicular to the horizontal portion. The left and right side plates,
A reel storage portion is provided in the horizontal portion, the vertical portion, and a central portion where the horizontal portion and the vertical portion intersect,
A reel stocker in which a space for reel storage and removal larger than the diameter of the reel is formed obliquely forward of the reel stored in the storage portion provided in the central portion . In a reel stocker for storing a plurality of reels for winding a supply tape storing electronic components at a predetermined pitch,
The side placed on the parts supply cart is the rear side,
Left and right side plates provided with an interval, each having a horizontal portion that is a front portion of the reel stocker and a vertical portion that is located above the horizontal portion and is perpendicular to the horizontal portion. The left and right side plates,
Provided between the side plates, the horizontal portion, the vertical portion, and a plurality of storage spaces each having a reel storage portion at a central portion where the horizontal portion and the vertical portion intersect ,
A reel stocker in which a space for reel storage and removal larger than the diameter of the reel is formed obliquely forward of the reel stored in the storage portion provided in the central portion . The horizontal portion, Li Rusutokka according to claim 1 or 2, wherein the vertical portion and the central portion is characterized by comprising a roller for rotatably supporting the reel. The reel stocker according to any one of claims 1 to 3, wherein the reels are stored one by one in the three storage units between the side plates. The said side plate has a convex part which engages with a part of said reel accommodated in the said accommodating part, and controls that the said reel remove | deviates from the said accommodating part. Reel stocker described in 1. In an electronic component mounting carriage in which a plurality of electronic component supply units are detachably mounted,
An electronic component mounting cart comprising the reel stocker according to any one of claims 1 to 5, which supplies a supply tape to the electronic component supply unit .

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