JP6026796B2 - Electronic component mounting apparatus and electronic component mounting method - Google Patents

Description

  The present invention relates to an electronic component mounting apparatus and an electronic component mounting method, and more particularly to an electronic component mounting apparatus that can reliably supply electronic components and has a high operating rate.

  In recent years, in the production of circuit boards by mounting electronic components on a printed circuit board or the like, it is desired to improve the operating rate of the electronic component mounting apparatus. For this purpose, it is important to supply the electronic components reliably and complete the replenishment time or the setup change of the electronic components in a short time.

  There exists patent document 1 as a prior art for this. Patent Document 1 discloses a technique in which an insertion sprocket that inserts a supply tape into a feeder and a drive sprocket that is positioned at an outlet of an electronic component are driven by the same motor, and a subsequent supply tape is loaded onto the feeder. In Patent Literature 1, when it is detected that the rear end portion of the preceding supply tape has come close to the drive sprocket position when the parts of the preceding supply tape have run out (first method), or An interval L is provided between the leading end of the subsequent supply tape, and the subsequent supply tape is fast-forwarded based on the interval L (second method). Further, it is disclosed that a gap L between the rear end portion of the preceding supply tape and the front end portion of the subsequent supply tape is provided even when the insertion sprocket and the drive sprocket are driven by different motors.

JP 2011-171664 A

  However, in the first method of Patent Document 1, in many cases, there are already many cases where there is no electronic component at the position of the pocket, and in the second method, in order to avoid an electronic component that is not mounted and take L longer. The set time of the feeder of the subsequent supply tape becomes longer. Further, in Patent Document 1, since the subsequent supply tape and the preceding supply tape are driven by the same motor, it is considered that the fast feed of the subsequent supply tape also means that the preceding supply tape is fast-forwarded. Has no idea of fast-forwarding a pre-supplied tape. Therefore, when the insertion sprocket and the drive sprocket are driven by different motors, it is considered to be disclosed that the subsequent supply tape is rapidly fed based on the interval L.

  In view of the above-described problems, the present invention mounts an electronic component that can shorten the loading time of the feeder of the subsequent supply tape in a feeder that drives the insertion sprocket and the drive sprocket with a motor, particularly, both of them driven by different motors. An apparatus and an electronic component mounting method are provided.

In order to achieve the above object, the present invention has at least the following features.
The present invention relates to a drive sprocket that moves a supply tape that houses an electronic component in a pocket to an outlet from which the electronic component is taken out from the outside, a drive sprocket drive motor that drives the drive sprocket, and the supply tape inserted inside Insertion sprocket, an insertion sprocket drive motor for driving the insertion sprocket, a feeder comprising the drive sprocket drive motor and a feeder control unit for controlling the insertion sprocket drive motor, and a plurality of lanes on which the feeder can be set and feeder carts having an apparatus body mounting the electronic components on a substrate taken out of the feeder, and a control unit of the apparatus body for controlling the feeder, the apparatus main body, the supply tape in said outlet Of the electronic component in the pocket Presence / absence judging means for judging whether there is “present” or “none”, and the feeder control unit is configured to supply the supply tape from the time of mounting on the substrate based on a result of the absence of the electronic component of the presence / absence judging means. Fast forward to the supplied tape is configured to exhaust from said feeder, prior and after the supply tape as supply tape has been discharged, the said supply tape as mated subsequent supply tape to the insertion sprocket When the subsequent supply tape is loaded by being fitted to the drive sprocket, the drive sprocket is configured to rotate at a speed faster than the rotation speed of the insertion sprocket .

Further, the present invention provides an insertion detection step of inserting a supply tape for storing an electronic component in a pocket into an insertion port of a feeder and detecting the insertion by a tape insertion detection sensor, and a tip of the inserted supply tape A cueing step of moving the pocket of the part to the outlet of the electronic component, a moving step of sequentially moving the electronic components housed in the pocket to the outlet after the cueing step, and A mounting step for taking out the electronic component and mounting the electronic component on a substrate; a passage detection step for detecting that a terminal portion of the supply tape has passed through the tape insertion detection sensor; and a step for detecting the electronic component in the pocket after the passage detection step. Detecting whether or not a part is present, and determining whether or not the part is out of parts. When it is cut off, the feeding tape is fast-forwarded and ejected from the feeder, and after the feeding tape as the preceding feeding tape is ejected, the feeding tape is fitted into an insertion sprocket to be inserted into the feeder. the supply tape as a subsequent feed tapes, the is fitted to the electronic component housed in the pocket to the drive sprocket bets to be moved to the outlet while rotating at a speed higher than the rotational speed of the insertion sprocket A loading step for loading.

  According to the present invention, an electronic component mounting apparatus and an electronic component mounting method capable of shortening the loading time of a feeder of a subsequent supply tape in a feeder that drives an insertion sprocket and a drive sprocket by a motor, particularly, both of them driven by different motors. Can provide.

It is a top view which shows the structure of one Example of the electronic component mounting apparatus of this invention. It is a perspective view of one Example of the feeder cart in the electronic component mounting apparatus of this invention. It is a figure which shows the structural example of the general supply tape used for this embodiment. It is a figure which shows the structure of one Example of the feeder of this invention. It is a perspective view which shows the supply tape and tape chute | shoot used for a present Example. It is a figure for demonstrating one Example of the 3rd sprocket fitted to the sprocket hole of the supply tape in the feeder which is one Example. It is a perspective view which shows the supply tape and tape chute which are used for a present Example, 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 figure which shows one Example of the operation surface of the operation panel provided in the handle of the feeder which is a present Example. It is a figure which shows the state which set the supply tape to the insertion port of a feeder. It is a figure which shows the state which the loading operation of the supply tape was complete | finished. It is a figure which shows the timing chart of loading operation | movement. It is a figure which shows the state at the time of the part cutting process start of a feeder. The supply tape 60 is fast-forwarded and discharged. It is a figure which shows the 1st Example of a component cut processing flow. It is a figure which shows the state which set the subsequent supply tape in the feeder in the component cut processing flow of a 2nd Example. It is a figure which shows the state which the termination | terminus part of the preceding supply tape passed the tape insertion detection sensor in the component cut processing flow of 2nd Example. It is a figure which shows that the succeeding supply tape has started to move by the drive of the DC motor when the preceding supply tape comes to a position separated from the tape insertion detection sensor by a distance L in the part cut processing flow of the second embodiment. The state where the preceding supply tape is determined to be out of parts in the part out processing flow of the second embodiment is shown. In the part cut processing flow of the second embodiment, the preceding supply tape is fast-forwarded and discharged. It is a figure which shows the structure of a display part, and the state of the display part at the time of supply tape fast-forward.

Hereinafter, an embodiment of an electronic component mounting apparatus will be described based on the drawings.
In addition, the following description is for describing one embodiment of the present invention, and does not limit the scope of the present invention. Accordingly, those skilled in the art can employ embodiments in which these elements or all of the elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.
In the description of each drawing, the same reference numerals are assigned to components having the same function, and description thereof is omitted as much as possible to avoid duplication.

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 upper and lower 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 feeder cart on which a number of feeders are mounted is set, a mounting head 6, a mounting head body 11 for moving the mounting head 6, and an electronic unit 4 in the suction head 6 (see FIG. 3). The component recognition camera 19 for imaging the suction 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 the up / down moving rail 16 constituted by the linear motor up and down like the left / right moving rail 18.

  With such a configuration, the suction nozzle of the mounting head 6 fixed to the mounting head body 11 sucks the electronic component 4 from the component supply area 13, and the component recognition camera 19 monitors the suction holding state of the electronic component 4. The printed electronic circuit board P is moved to a predetermined position, and the adsorbed electronic component is mounted on the printed circuit board P.

  Such an operation is performed in four blocks. Therefore, in the center, there are four chutes 5a to 5d that convey the printed circuit board P, the upper two chutes 5c and 5d are the upper block substrate conveyance line U, and the lower two chutes 5a and 5b are A substrate transport line D for the lower block is configured. The printed circuit boards P are distributed by the delivery unit 7 and are carried into the board transport line U or D.

FIG. 2 is a perspective view of an embodiment of the feeder cart 50 set in the component supply area 13 of the electronic component mounting apparatus 1 of FIG.
The feeder cart 50 shown in FIG. 2 is roughly divided into a base part 51, a feeder fixing part 52 for fixing the feeder shown in FIG. 3, a handle part 53, and a part supply reel storing a part supply reel 70 (see FIG. 8A). The unit 54 is configured.
The base portion 51 has four wheel fixing portions 51a for fixing moving wheels (not shown) at four corners, and the feeder cart 50 is fixed when the feeder cart 50 is fixed to the main body of the electronic component mounting apparatus 1. It has a lock pin 51b that is fixed to the floor surface. The feeder fixing portion 52 is located above the feeder cart 50, and as shown in FIG. 3, the feeder fixing portion guide 52c guides the cassette fixing portion 35 of the feeder 2 to place the feeder 2 on the feeder base 52a. The interface unit 36 of the feeder 2 is connected to the connector 52d. The feeder fixing portion connector 52c is regularly arranged on the feeder base 52a so that a large number of feeders can be mounted. A supply tape 60 on which the electronic component 4 is mounted is supplied to each feeder from the supply reel storage section 54 to each feeder.

  At both ends of the feeder base 52a, there are feeder guides 52e that play a role of sliding a cart guide plate (not shown) provided on the main body 1 when inserting the feeder cart into the main body 1. Further, the feeder guide 52 e has a positioning hole 52 b for fixing the feeder cart 50 to the main body 1. Finally, there is a handle portion 53 so that the feeder cart 50 can be moved, and the operator moves the feeder cart 50 in the Y direction which is the direction of the main body 1 by the handle 53a of the handle portion 53 and inserts the feeder cart 50 into the main body. At this time, the front end 53c of the side plate 53b of the handle portion 53 serves as a stopper that prevents the feeder cart 50 from being inserted any further.

FIG. 3 is a diagram illustrating a configuration example of a general supply tape used in the present embodiment.
In the configuration, the supply tape 60 includes a carrier tape 62 having a pocket 63 that accommodates the electronic component 4 and a cover tape 61 that covers the carrier tape. The carrier tape 62 is engaged with a sprocket, which will be described later, at one end thereof. Sprocket holes (tape feed holes) 64 for moving the supply tape are provided at regular intervals (constant pitch).

  The first embodiment of the present invention will be described below. In the first embodiment, the electronic component mounting apparatus 1 described in FIG. 1, the feeder cart 50 described in FIG. 2, and the supply tape 60 described in FIG. 3 are used.

  FIG. 4 is a diagram showing the configuration of an embodiment of the feeder of the present invention. The feeder cart 50 (see FIG. 2) is equipped with a plurality of feeders 2. Note that the feeder 2 in FIG. 4 does not show the supply tape 60. Further, in the feeder 2 of FIG. 4, the left side of the drawing is the feeding direction (direction of arrow A), and the right side of the drawing is the returning direction (direction of arrow B). The feeder control unit 37 is connected to necessary equipment in the feeder 2 by a control line (not shown).

  The feeder 2 of FIG. 4 includes three sprockets 32, 45 and 41. The third sprocket 32 is for inserting the supply tape 60 into the feeder 2. The second sprocket 45 presses the inserted cover tape 61 of the supply tape against a cutter (not shown) provided in the separation mechanism 42 to raschel the cover tape 61 left and right. As the separation mechanism 42, other methods such as peeling the cover tape 61 may be used.

  The first (drive) sprocket 41 positions the supply tape 60, which is pressed against the tape chute 2 </ b> S by a pressing mechanism (not shown), at the outlet 44 in order to securely fit the sprocket hole 64 (see FIG. 3). The first sprocket 41 is driven by a drive sprocket drive motor. In this embodiment, the first sprocket 41 is driven by a servo motor 47 having a servo function in order to have the positioning function. The first sprocket 41 and the second sprocket 45 serve to move the supply tape 60 together during the mounting operation of the electronic component 4. The load in the movement is mainly handled by the second sprocket 45, that is, the supply tape 60 is pulled up from the component supply reel storage portion 54 and supplied to the first sprocket 41. The load is reduced by a later-described reverse rotation prevention function of the third sprocket 32 described below.

  On the other hand, the third (insertion) sprocket 32 is driven by an insertion sprocket drive motor. In this embodiment, the third (insertion) sprocket 32 is driven independently by a DC motor 33 that does not have a servo function different from the servomotor 47. The third sprocket 32 operates at the time of loading in which the supply tape 60 is inserted into the feeder 2 and put into the mounted state, and is stopped after the supply tape 60 is fitted to the second sprocket 43. Therefore, as shown in FIG. 5B, the teeth 32h of the third sprocket 32 can be fitted into the sprocket holes 64 during loading, and the supply tape 60 can slide so as not to become a load on the third sprocket 32 during mounting operation. It is necessary to be.

Therefore, the teeth 32h of the third sprocket 32 have a height that is lower than the thickness of the carrier tape 62, and have a gentle curved surface with no corners, such as a conical shape. However, since the tooth 32h has a gently curved shape, the third sprocket 32 supports the supply tape 60 from the component supply reel storage portion 54 (see FIG. 2) when the supply tape 60 is driven and mounted. Therefore, it is necessary to prevent reverse rotation. Therefore, the third sprocket 32 includes a one-way clutch 32C that is a reverse rotation preventing means.
The 33 DC motors may be provided with a servo function.

On the other hand, the teeth 41h and 45h of the first and second sprockets 41 and 45 must always be firmly fitted into the sprocket holes 64. Therefore, as shown in FIG. 6B, the teeth 41h and 45h are higher 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.
4, 5 </ b> A, and 6 </ b> A is a tape chute that the supply tape 60 moves while sliding in the feeder 2 according to the present embodiment. 5A and 6A are perspective views showing a supply tape and a tape chute used in this embodiment.

Hereinafter, the configuration and operation of the feeder 2 according to the present embodiment will be described in detail mainly with reference to FIG.
The feeder 2 includes a tape pressing plate 38, an outlet 44 for the suction nozzle of the mounting head 6 to suck the electronic component 4, and a cassette fixing portion 35 for fixing the feeder 2 to the feeder cart 50. The tape pressing plate 38 is configured to detachably attach the supply tape 60 from above so that the sprocket hole 64 does not come off the teeth 32h on the tape chute 2S during loading.

  The feeder 2 is provided with a third sprocket 32 for inserting the leading end portion 60a (see FIG. 8A) of the supply tape 60 into the feeder 2 below the tape pressing plate 38. As the third sprocket 32 rotates, the teeth 32h of the third sprocket 32 fitted to the sprocket holes 64 of the supply tape 60 rotate in the A direction. As a result, the supply tape 60 can move in the feed direction and reach the second sprocket 43.

  And the sprocket hole 64 of the front-end | tip part 60a of the reached supply tape 60 and the teeth 43h of the second sprocket 43 are fitted. Thereafter, the supply tape 60 is further moved in the feeding direction by the rotation of the second sprocket 43, and the cover tape 61 is cut and rascheled by a cutter (not shown) of the separation mechanism 42. Thereafter, the supply tape 60 reaches the first sprocket 41 and enters a mounting state in which the electronic component 4 can be mounted. In the mounted state, the cover tape 61 of the supply tape 60 is not slashed by the second sprocket 45 but is pulled by pulling from the rear by the first sprocket 41.

  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. Further, since the feeder 2 of FIG. 4 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 perpendicular to the line passing through the rotation center of each sprocket. It is a tooth on the line G ′ and FF ′ (see FIGS. 5B and 6B).

  The feeder 2 includes a DC motor 33 that drives the third sprocket 32, and a servo motor 47 that drives the first sprocket 41 and the second sprocket 43. Furthermore, the feeder 2 includes a tape insertion detection sensor 31 and a tape pressing detection sensor 45. The tape insertion detection sensor 31 is provided on the second sprocket side of the third sprocket 32 and detects that the supply tape 60 has been inserted from the insertion port C. The tape push-in detection sensor 45 is provided between the first and second sprockets 41 and 4 and detects that the leading end 60 a of the supply tape 60 has reached the separation mechanism 42.

Furthermore, the feeder 2 includes an operation surface 100 of the operation panel 48 shown in FIG. 7 in the vicinity of the insertion slot C of the supply tape 60 and the tape pressing plate 38. In FIG. 4, the operation panel 48 is provided on the surface of the feeder handle for carrying the feeder 2. However, the operation panel 48 may be provided anywhere as long as it can be operated and visually confirmed. The operation surface 100 of the operation panel 48 includes a display unit 101 indicating the state of the feeder 2, a lane selection key 102 for selecting a lane of the feeder cart 50 on which the feeder 2 is placed, and a supply tape 60 shown in FIG. ) Direction or return (B) direction, a feed button 103 forcibly moved while being pressed, a return button 104, and a loading button 105 for selecting a loading mode are provided.
FIG. 13 shows the configuration of the display unit 101. The feeder 2 has two sets of the configuration shown in FIG. 4, and each has a lane number provided on the feeder base of the feeder cart 50. When the worker selects a set to work with the lane selection key 102, the lamp on the selected side of the display unit 101 213, 214 is turned on. In addition, the display unit 101 has two 7 segments 111 and 112 for displaying work contents and the like.

  Further, the feeder control unit 37 exchanges signals with the main body 1 via the interface 36, receives information from the main body 1, signals from the tape insertion detection sensor 31, the tape push-in detection sensor 45, and the operation panel 48. Control. The sprockets 41 and 43 are simultaneously driven by a servo motor 47 via a worm gear 46 that meshes with worm wheels 41H and 43H provided concentrically. Similarly, the sprocket 32 is driven by a DC motor 33 different from the servo motor 47 through a worm gear 34 that meshes with a worm wheel 32H provided concentrically.

Next, a loading function for mounting (setting) the supply tape 60 to the feeder 2 when the supply tape 60 is not mounted will be described with reference to FIGS. Here, the loading operation refers to a series of operations in which the supply tape 60 is inserted into the feeder 2 and the supply tape 60 is automatically carried to the take-out port 44, which is a part extraction position of the supply tape 60. This operation is possible even when the feeder 2 is in operation. 8A shows a state in which the supply tape 60 is set in the insertion slot C of the feeder 2, and FIG. 8B shows a state in which the loading operation of the supply tape 60 has been completed. FIG. 9 is a time chart of the loading operation.
When the worker newly sets the supply tape 60 in the feeder 2, the worker attaches it to the component supply reel 70 of the supply tape 60, for example, with a barcode reader connected to the component mounting device. The bar code 70a is read. This bar code includes information on the electronic component 4 in which the supply tape 60 is accommodated. The read barcode information is transmitted to the main body 1.
The control device 80 (see FIG. 1) of the main body 1 determines whether or not the received bar code information matches the feeder information to be set. If the barcode information and the feeder information match, the control device 80 operates to continue the operation as it is. If the barcode information does not match, the control device 80 outputs an alarm and stops the automatic insertion operation. For example, even if a feed button (described later) of the operation panel 48 is pressed, the DC motor 33 does not rotate and the third sprocket 32 does not rotate, so that the feeding (loading) operation is not performed. As a result, cross-over is prevented.

The control device 80 transmits a command to the feeder 2 when the barcode information and the feeder information match. Receiving this command, the feeder 2 continues the loading operation when the operation panel 48 is operated. That is, during the loading operation, as shown in FIG. 7A, the worker sets the supply tape 60 in the component supply reel storage portion 54 (see FIG. 2). Then, the following procedures (1) to (3) are executed to prepare for the loading operation, and the state shown in FIG. 8A is obtained.
Procedure (1) Remove the tape presser plate 38.
Procedure (2) Insert the leading end 60a of the supply tape 60 from the tape insertion slot C, and mount it on the third sprocket 32 so that the sprocket holes 64 and the sprocket teeth fit.
Procedure (3) An operator attaches the tape pressing plate 38 on the tip 60a of the mounted supply tape 60, and presses the tip 60a of the supply tape 60 with the tape chute 2S and the tape pressing plate 38 interposed therebetween.
Next, the loading operation will be described with reference to FIG. 9 showing a time chart of the loading operation. The worker presses the feed button 103 on the operation panel 48 and starts the loading operation by the feeder control unit 37 of the feeder 2. The loading operation is divided into a preloading operation and a so-called loading operation.

In FIG. 9, (a) shows the operation of the servo motor 47, and the vertical axis shows the speed. In the speed (a), a positive speed indicates movement of the supply tape 60 in the direction of arrow A (feed direction) shown in FIG. 4, and a negative speed indicates movement in the direction of arrow B (return direction) shown in FIG. .
(B) shows the presence or absence of detection by the tape insertion detection sensor 31 with “Yes” at the High level and “No” at the Low level.
(C) indicates the presence or absence of detection by the tape pressing detection sensor 45 with “Yes” indicating High level and “No” indicating Low level.
(D) shows ON / OFF of the operation of the DC motor 33, “ON” being a high level and “OFF” being a low level.
(E) shows ON and OFF of the loading SW 105 (see FIG. 10A) of the operation panel 48, “ON” indicates a high level, and “OFF” indicates a low level.

  First, the preloading operation will be described.

<State (i)>
When the operator selects the loading SW 105, the feeder control unit 37 turns on the loading SW 105 if the detection results of the tape insertion detection sensor 31 and the tape push-in detection sensor 45 are both “no”. After the interval time elapses, the DC motor 33 is turned on, the third sprocket 32 is rotated in the direction A (counterclockwise) in FIG. 4, and the supply tape 60 is moved to be fitted with the third sprocket 32. Also, the timer is started simultaneously with the ON operation of the DC motor 33.
<State (ii)>
The feeder control unit 37 turns off the DC motor 33 after the timer has elapsed for a predetermined time, and stops the rotation of the third sprocket 32.
<State (iii)>
After the DC motor 33 is turned off, the feeder controller 37 confirms that the tape insertion detection sensor 31 is “present” or “not present” in the supplied tape. In the case of “None”, the inserted supply tape 60 cannot be mated with the third sprocket 32, and it is assumed that there is some abnormality again, and the preloading operation is stopped.
<State (iv)>
When the detection result of the tape insertion detection sensor 31 is “present”, the feeder control unit 37 turns on the DC motor 33 and starts the rotation operation of the servo motor 47, and proceeds to the loading operation in step S1. . In the state (iv), the supply tape 60 starts to move to the second sprocket 43 again, and the second sprocket 43 prepares to be engaged with the supply tape 60.

  Next, the loading operation from step S1 will be described.

<Step S1>
The feeder control unit 37 rotates the DC motor 33 in accordance with a preset tape feed time (amount). Further, the feeder control unit 37 monitors the detection result of the tape pressing detection sensor 45 while the supply tape 60 is moving (tape feeding). During the operation of step S <b> 1, the rotational speed of the second sprocket 43 is made faster than the rotational speed of the third sprocket 32.

  This is because the fitting transition from the third sprocket 32 to the second sprocket is performed by this speed difference. The supply tape 60 does not immediately fit due to the asobiros, absorbs the accumulated error of the sprocket holes 64 described above, and eventually fits with the acute-angled teeth 43h of the second sprocket while sliding. In order to detect that the second sprocket 43 is fitted by this asobiros, the tape indentation detection sensor 45 is provided behind the second sprocket 43. After the fitting, the supply tape 60 is reliably moved by the acute-angled teeth 43h of the second sprocket 32, and slides on the gently curved teeth 32h having no corners of the speed differential third sprocket 32.

Therefore, the feeder 2 has a large gap between the second and third sprockets 43 and 32, and the second and third sprockets 43 and 32 have a speed difference even if there is a cumulative pitch error of the feed tape 60. By independently driving, the supply tape 60 can be stably and automatically loaded.
<State (v)>
When the detection result of the tape pressing detection sensor 45 is “present”, the feeder controller 37 slows down (OFF) the servo motor 47 without waiting for completion of the predetermined stroke movement, and the servo motor 47 The DC motor 33 that has been rotating in conjunction with is turned off. Thereafter, the DC motor 33 maintains the OFF state.
On the other hand, if the detection result of the tape pressing detection sensor 45 remains “None” even if the rotation operation according to the preset tape feed amount is completed, the feeder control unit 37 has some abnormality. The DC motor 33 is turned off.
That is, in step S1, the supply tape 60 moves so as to be engaged with the second sprocket, but if the tape pressing detection sensor 45 detects the supply tape 60 within a predetermined time (feed amount), it is determined that the supply tape 60 is engaged. If it cannot be fitted, the supply tape 60 cannot be moved after step S2 by the second sprocket 43. Therefore, the drive of the servo motor 47 and the DC motor 33 is forcibly stopped, and the loading operation is stopped.

<Step S2>
The feeder control unit 37 waits for a predetermined interval time after the rotation of the servo motor 47 is stopped.
<State (vi)>
The feeder control unit 37 repeats the reverse feed operation of the servo motor 47 at the minimum pitch (taping standard: 1 mmP) after a predetermined interval time has elapsed until the detection result of the tape pressing detection sensor 45 becomes “None”.
<State (vii)>
The feeder control unit 37 stops the reverse feed operation of the servo motor 47 when the detection result of the tape pressing detection sensor 45 becomes “none”. By this reversal, a predetermined distance for rascheling the cover tape 61 can be obtained stably. That is, the distance between the detection position of the tape pressing detection sensor 45 and the cutter of the separation mechanism 42 is the predetermined distance.
The third sprocket 32 is not reversed by the one-way clutch 32C, but can be absorbed by the worst tape chute 2S between the second and third sprockets 43 and 32 because the return amount is about 5 mm at the maximum. Therefore, the supply tape 60 fitted to the second sprocket 43 can return and move in the direction (B) by the thrust of the servo motor 47.

<Step S3>
The feeder control unit 37 rotates the servo motor 47 with a preset step S3 feed driving waveform, and performs a tape feed operation at a high speed to the position immediately before the cutter blade of the separation mechanism 42 (one feed).
That is, in step S2, since the leading end portion 60a of the supply tape 60 is stopped at a predetermined position, the position of the leading end portion 60a is determined. As a result, in step S3, the leading end 60a of the supply tape 60 can be sent to the position immediately before the cutter blade by a single feed operation of a predetermined amount.
<Step S4>
The feeder control unit 37 rotates the servo motor 47 with the preset step S4 feed driving waveform to tear the cover tape 61 so that the electronic component 4 can be taken out, and the leading end 60a of the supply tape 60 is the first sprocket 41. The feeding tape 6 is fed until it is fitted (one feeding).
In this step S4 feed driving waveform, the feeder control unit 37 rotates the servo motor 47 at an ultra-low speed and an ultra-low acceleration, and tears the cover tape 61 reliably.
That is, in step S4, “insertion → cover tape cutting” (Russell process) is performed in the supply tape insertion sequence of the separation mechanism 42 to the cover tape cutting zone. Since the cover tape 61 is opened in a raschel shape without being peeled off, the cover tape 61 is fed once by a predetermined amount at an ultra-low speed and an ultra-low acceleration.
<Step S5>
According to the part library setting (feed pitch) of the parts stored in the supply tape 60, a predetermined feed amount / predetermined number of feeds is performed, and the cueing for aligning the pocket 63 at the tip 60a of the supply tape 60 with the outlet 44 is performed. I do. FIG. 8B shows this cueing state.
The feed amount and the number of feeds at this time use a data table determined in advance for each feed tape feed pitch. Note that the data table is built in the control device 80 of the main body 1, and the feeder control unit 37 captures and uses these necessary information via the feeder signal connector 52d.

  In step S <b> 5, the supply tape 60 is fitted with the first sprocket 41. The distance between the second sprocket 43 and the first sprocket is a distance that is not affected by the feed hole accumulated pitch error of the supply tape 60. Therefore, if the second sprocket 43 is fitted to the supply tape 60, the first sprocket 41 can be fitted stably.

  Therefore, in a series of mounting operations performed thereafter, the posture of the supply tape 60, the stability of the traveling property (straightness), and the robustness can be improved by the double sprocket system of the first and second sprockets.

  In a series of mounting operations performed thereafter, the supply tape 60 is not pushed by the second sprocket 43 but pulled by the first sprocket 41, so that the cover tape 61 can be cut reliably.

  According to the loading operation described above, the supply tape 60 can be set safely and reliably in the feeder 2 of the above embodiment in a short time.

According to the loading operation described above, the drive sprocket that moves the electronic component 4 to the outlet even when there is a cumulative pitch error between the sprocket holes when a new supply tape is set in the feeder at the time of setup change or the like. It is possible to realize a highly reliable electronic component mounting apparatus or electronic component mounting method capable of reliably engaging the sprocket hole of the supply tape.
In the above embodiment, the operator operates the operation panel to start the loading operation, but the electronic component mounting apparatus 1 may automatically start the loading operation.

  Next, the part cut processing when the supply tape 60 has run out after a series of mounting operations will be described. FIG. 10A is a diagram illustrating a state when the feeder 2 starts a part cut process. FIG. 10B shows a state where the supply tape has been fast-forwarded and the discharged part cut-out process has been completed. FIG. 11 is a diagram illustrating a first embodiment of a component cut processing flow.

  As shown in FIG. 10A, when the electronic component 4 is being mounted, the end-of-part processing has passed the end portion 60e of the supply tape 60 through the tape insertion detection sensor 31, that is, the tape insertion detection sensor 31 is turned off from the ON state. It starts when the state changes. At this time, the feeder control unit 37 of the feeder 2 determines that the parts will soon run out, and transmits “OFF information” to the main body 1 via the interface unit 36 (step S12). On the other hand, when the tape insertion detection sensor 31 is in the ON state, the electronic component 4 is continuously mounted (step S11).

  Even if the end portion 60e of the supply tape 60 passes the tape insertion detection sensor 31, the electronic component 4 to be mounted still exists on the supply tape 60. In particular, when the distance between the first sprocket 31 and the tape insertion detection sensor 31 is long, many electronic components 4 still exist. In general, there is no room for the electronic components 4 to be mounted, and it is desirable to mount all the electronic components 4 present on the supply tape 60. Therefore, immediately after the tape insertion detection sensor 31 is detected, the supply tape 60 is fast-forwarded and is not discharged from the feeder 2.

  Therefore, the control device 80 of the main body 1 determines whether or not the suction nozzle 8 can suck the electronic component 4 even after receiving the “OFF information”, that is, the presence or absence of the electronic component 4 to be mounted. (Continuation) information "is transmitted to the feeder 2 (step 13).

  Confirmation of the presence or absence of suction of the electronic component 4 by the control device 80 after the component suction operation by the suction nozzle 8 is made possible by, for example, an optical sensor (not shown) provided in the mounting head 6. The electronic component 4 sucked by the suction nozzle 8 is irradiated with light from the projector from the lateral direction, and if there is no electronic component 4, the presence or absence of the electronic component 4 can be detected by the presence or absence of light reception by the light receiving device. If no part detection of this sensor occurs in the same feeder 2 for a set number of times, it can be determined that there is no part. Further, the presence / absence of the component 4 may be detected from the captured image of the component recognition camera 19 for recognizing the positional deviation of the extracted electronic component 4 with respect to the suction nozzle 8. The detection by the sensor of the mounting head 6 can be confirmed immediately after the electronic component 4 is sucked, so that it is possible to determine whether the component has run out at an early timing.

  The feeder control unit 37 of the feeder 2 receives “presence / absence information” from the main body 1. When the received information is “present”, the feeder control unit 37 moves the supply tape 60 and continues the mounting operation together with the main body 1 (step S11).

  On the other hand, when the received information is “none”, the feeder control unit 37 stops the movement of the supply tape 60. The controller 80 of the main body 1 performs the suction operation of the suction nozzle 8 a plurality of times (m) in order to ensure certainty (step 14). In Example 1, this is performed three times. Of course, it may be once. m is a number index indicating the number of times of suction. When the electronic component 4 can be picked up, m = 0 is maintained (step S16). If the electronic component 4 cannot be picked up, the number of consecutive times that the electronic component 4 cannot be picked up is counted (step S14).

  In the present embodiment, if the controller 80 of the main body 1 cannot pick up three times in succession, it is determined that the component is out (step 15), and information indicating that the component is out is transmitted to the feeder control unit 37 of the feeder 2. . Receiving this information, the feeder control unit 37 of the feeder 2 flushes the display unit 101 of the operation surface 100 shown in FIG. 7 at intervals of 0.5 seconds, for example, as shown in FIG. 13 (step 17). “Tr” shown in FIG. 13 indicates that unnecessary “trash” having no electronic component 4 is discharged from the feeder 2.

Further, the feeder control unit 37 of the feeder 2 performs flushing, and fast feeds the supply tape 60 at a speed about three times faster than that at the time of attachment by the servo motor 47 (step 18). After the supply tape 60 is fast-forwarded, it is discharged and the state shown in FIG. 10B is obtained.
Thereafter, the feeder 2 of the new supply tape 60 is set by the loading operation shown in FIG. Note that the high-speed feed operation can be stopped for some reason by pressing any button on the operation panel 48.

According to the first embodiment described above, it is possible to surely confirm that the component has run out by the suction nozzle 8 and to perform a high-speed fast-forward operation without waste from that position.
In addition, by performing a high-speed fast-forward operation, the insertion start time of the next new supply tape can be shortened, and an electronic component mounting apparatus and an electronic component mounting method with a high operating rate can be provided.

  As a method for confirming that the electronic component has run out, for example, the pocket 63 of the supply tape 60 may be imaged by an imaging means provided in the mounting head 6 or the feeder cart 50.

  The fast-forwarding operation of the supply tape 60 shown in the first embodiment can also be applied to the prior art in which the third sprocket is driven by the servo motor that drives the first sprocket, that is, the same motor.

In the present embodiment, the processing of the cover tape 61 of the separation mechanism 42 is to cut the vicinity of the center of the cover tape along the running direction of the tape 62 with a cutter blade, and then open it by raschel.
That is, the cover tape 61 at the top of the component 4 is opened and removed at the component extraction position by the suction nozzle 8 shown in FIG. 10A, and the electronic component 4 is exposed so that the component 4 can be extracted. Not only the separation mechanism 42 of this embodiment, but also a separation mechanism (component exposure mechanism) that exposes components by peeling the cover tape 2 from the carrier tape 2 as in this embodiment. The feeder 2 can be fed at high speed after the parts are cut.

(Example 2)
Next, a second embodiment 2 of the fast-forwarding operation due to the electronic component being cut will be described. 12A to 12E are diagrams illustrating a part cut processing flow in the second embodiment.
As shown in FIG. 8A, the feeder 2 has a tape pressing plate 38 that enables the supply tape 60 to be set on the feeder 2. The operator uses the preceding supply tape 60 set before in the loading operation shown in FIG. 9 immediately after loading the feeder 2 or while the electronic component 4 of the preceding supply tape 60 is being mounted. The subsequent supply tape 60 'is also set in the feeder 2 (FIG. 12A). For this purpose, the worker picks up the tape pressing plate 38 having a triangular shape and places the preceding supply tape 60 on a slope inclined in the feeding direction. Thereafter, the worker mounts the subsequent supply tape 60 ′ so that the sprocket 64 is engaged with the teeth 32 h 0 of the third sprocket 32, and places the tape pressing plate 38 on the subsequent supply tape 60. The preceding supply tape 60 and the subsequent supply tape 60 ′ are respectively stored in the component supply reels 70 and 70 ′ provided in the component supply reel storage unit 54 shown in FIG.

  Thereafter, the feeder 2 performs the mounting operation of the electronic component 4 of the preceding supply tape 60 by the first and second sprockets 41 and 43 driven by the servo motor 47. And the feeder 2 will be in the state which the terminal part 60e of the preceding supply tape 60 passed the tape insertion detection sensor 31 as shown to FIG. 10A of Example 1 of the component piece processing flow (FIG. 12B). At this time, the DC motor 33 is stopped and the subsequent supply tape 60 'is not moved.

After the state shown in FIG. 12B, the preceding supply tape 60 is processed based on the part-out flow shown in the first embodiment, and finally is fast-fed away from the feeder 2 and discharged.
On the other hand, the succeeding supply tape 60 ′ starts to move by the driving of the DC motor 33 when the preceding supply tape 60 comes to a position away from the tape insertion detection sensor 31 by the distance L (FIG. 12C). Thereafter, the subsequent supply tape 60 ′ is loaded in a state in which the electronic component 4 can be supplied to the feeder 2 based on the loading operation shown in FIG.

  As described with reference to FIG. 9, the moving speed of the subsequent supply tape 60 ′ by the DC motor 33 is slower than the moving speed of the preceding supply tape 60, so that the subsequent supply tape 60 ′ does not overtake the preceding supply tape 60. Therefore, the process of running out of parts of the preceding supply tape 60 and the loading operation process of the subsequent supply tape 60 'can be performed independently. Therefore, L = 0 may be used, but a significant distance may be set for safety.

  Then, the preceding supply tape 60 is determined to be out of parts (FIG. 12D), similarly to step 15 of FIG. 11 shown in the first embodiment (FIG. 12D). Thereafter, the preceding supply tape 60 is subjected to high-speed fast-forward processing. Are discharged (FIG. 12E). On the other hand, the subsequent supply tape 60 'is subjected to the loading operation process shown in FIG.

According to the second embodiment described above, it is possible to surely check that the component has run out by the suction nozzle 8, and to perform high-speed fast-forwarding operation without waste from that position.
In addition, by performing high-speed fast-forwarding operation, it is possible to shorten the set start time of the subsequent supply tape, and it is possible to provide an electronic component mounting apparatus and an electronic component mounting method with a high operating rate.

  Furthermore, it is possible to reliably replenish the subsequent supply tape when the part is out, and the part replenishment time can be greatly shortened.

  In the second embodiment described above, the subsequent supply tape 60 ′ is set on the feeder by using the tape pressing plate 38 having a triangular shape. For example, another insertion port is provided, the subsequent supply tape 60 ′ is inserted from the other insertion port, the third sprocket is disposed in each insertion port, and the respective tape chutes 2S are joined at the output side of the third sprocket. May be.

(Example 3)
Next, a description will be given of a third embodiment of the fast-forwarding operation due to the electronic component being cut. In the third embodiment, unlike the first and second embodiments, the supply tape 60 is forcibly fast-forwarded and discharged when the supply tape 60 is in a state at the time of starting the component cutting process of the feeder 2 shown in FIG. 10A. The reason why the electronic component 4 is compulsorily performed is that, for example, the subsequent supply tape needs to be set also in another feeder, and the work efficiency can be improved as a whole.

  In Example 3, as shown in FIG. 10A, after the end portion 60e of the supply tape 60 passes through the tape insertion detection sensor 31, the lane to be performed is selected from the lane selection 102 shown in FIG. The feeder 2 has two sets of the configuration shown in FIG. 4, and each has a lane number provided on the feeder base of the feeder cart 50. Select the lane number. This selection information is sent to the control device 80 of the main body 1 and used for subsequent processing of the main body 1. Thereafter, when the lane selection key 102 is pressed and the feed button 104 is continuously pressed for 1 second within 2 seconds, the feeder control unit 37 performs a forced fast-forward operation of the supply tape 60 and discharges the forced tape 60. . Thereafter, the worker sets the subsequent supply tape 60 ′ and processes the feeders in other lanes. During forced fast-forward, the feeder control unit 37 flushes the display unit 101 of the operation surface 100 at intervals of 0.5 seconds, for example, as shown in FIG. The times of 2 seconds, 1 second, and 0.5 seconds are examples, and other times may be used.

Each has two lane numbers provided on the feeder base of the feeder cart 50. In FIG. 13, reference numerals 213 and 214 denote display units that indicate selection of the left and right lanes.
According to the third embodiment described above, the processing efficiency of the entire apparatus can be improved.

  In addition, according to the third embodiment described above, the parts replenishment time when the parts are out can be greatly reduced.

  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: Feeder 2S: Tape chute 4: Electronic component 6: Mounting head 8: Adsorption nozzle 13: Component supply area 31: Tape insertion detection sensor 32: Third sprocket 33: Insertion sprocket drive motor (DC motor)
34, 46: Worm gear 36: Interface unit 37: Feeder control unit 38: Tape pressing plate 41: First sprocket 42: Separating mechanism 43: Second sprocket 44: Extraction port 45: Tape pressing detection sensor 47: Drive sprocket drive motor ( Servomotor)
48: Operation panel 50: Feeder cart 52: Feeder fixing part 52a: Feeder base 52d: Feeder signal connector 54: Parts supply reel storage part 60: (Predecessor) supply tape 60: Subsequent supply tape 60a: Tip part on supply tape 60e: Terminal portion of supply tape 61: Cover tape 62: Carrier tape 63: Pocket 64: Sprocket hole (tape feed hole)
70, 70 ': Parts supply reel 80: Control device of main body 100: Operation surface of operation panel 101: Display portion of operation panel 103: Feed button 105: Loading button A: Forward direction B: Reverse direction C: Tape insertion slot P : PCB (printed circuit board)

Claims (8)

A drive sprocket that moves a supply tape for storing the electronic component in a pocket to an outlet from which the electronic component is removed from the outside; a drive sprocket drive motor that drives the drive sprocket; and an insertion sprocket that inserts the supply tape into the interior A feeder comprising: an insertion sprocket drive motor for driving the insertion sprocket; and a feeder controller for controlling the drive sprocket drive motor and the insertion sprocket drive motor;
A feeder cart having a plurality of lanes in which the feeder can be set;
An apparatus main body for taking out the electronic component from the feeder and mounting it on a substrate;
A control device of the device main body for controlling the feeder,
The apparatus body includes presence / absence judging means for judging presence / absence of the electronic component in the pocket of the supply tape at the outlet,
The feeder control unit is configured to rapidly feed the supply tape from the time of mounting on the substrate based on the result of the absence of the electronic component of the presence / absence determination unit, and to discharge the supply tape from the feeder.
When the supply tape as the preceding supply tape is discharged and then the subsequent supply tape is loaded by fitting the supply tape as the subsequent supply tape fitted to the insertion sprocket into the drive sprocket. In addition,
The electronic component mounting apparatus, wherein the drive sprocket is configured to rotate at a speed higher than a rotational speed of the insertion sprocket. The presence / absence determining means includes a suction nozzle that sucks the electronic component from the outlet, and the control device that determines whether the electronic component of the suction nozzle is sucked “present” or “none”. , in one or more successive adsorption, the when the "no" occurs once or sequentially, electronic component mounting according to claim 1, characterized in that said electronic component is determined to exist "No" apparatus. Said state determining means includes imaging means for imaging the outlet, and having the control device for determining "YES", "NO" in the presence of the electronic component on the basis of the results the imaging means The electronic component mounting apparatus according to claim 1. The drive sprocket drive motor to the insertion sprocket drive motor is an electronic component mounting apparatus according to claim 2 or 3, wherein the a further drive motor.   The feeder is provided with a plurality of tape insertion means capable of inserting the succeeding supply tape for supplying the electronic component when the preceding supply tape is out of stock in addition to the preceding supply tape as the supply tape into the feeder. The electronic component mounting apparatus according to claim 4.   The plurality of tape inserting means is a tape pressing plate that is detachable from the insertion sprocket and has a slope in the supply direction of the preceding supply tape, and the tape pressing plate slides the preceding supply tape on the slope. 6. The electronic component mounting apparatus according to claim 5, wherein the subsequent supply tape is fitted to the insertion sprocket on the lower surface. An insertion detection step for inserting a supply tape for storing electronic components into the insertion slot of the feeder and detecting the insertion by a tape insertion detection sensor;
A cueing step of moving the pocket at the tip of the inserted supply tape to an outlet of the electronic component;
After the cueing step, a moving step of sequentially moving the electronic components stored in the pocket to the outlet;
A mounting step of removing the electronic component at the outlet and mounting the electronic component on a substrate;
A passage detection step for detecting that the end portion of the supply tape has passed through the tape insertion detection sensor;
After the passage detection step, it is detected whether the electronic component is present in the pocket, and a component outage determination step for determining out of component,
When it is determined that the component is out in the component out determination step, the discharging step of fast-feeding the supply tape and discharging from the feeder;
After the supply tape as the preceding supply tape is discharged, the supply tape as the subsequent supply tape fitted to the insertion sprocket for inserting the supply tape into the feeder is faster than the rotational speed of the insertion sprocket. electronic component mounting method characterized by having a loading step of loading by fitting the electronic component housed in the pocket drive sprocket bets to be moved to the outlet while in rotation. The unit sold out determination step, when the suction nozzle for sucking the electronic component from said outlet port is unable to adsorb once or continuously to the electronic component, electronic according to claim 7, characterized in that it is determined that the component shortage Component mounting method.

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