JP6307123B2 - Feeder and feeder control method - Google Patents

Description

  The present invention relates to a feeder and a feeder control method.

In recent years, in the production of circuit boards by mounting electronic components on a printed circuit board, 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.
As a prior art, a supply tape containing electronic parts is inserted, a third sprocket that engages with a sprocket hole of the inserted supply tape is driven and inserted, and a drive sprocket that engages with the sprocket hole is inserted. When driving and moving the electronic component to the take-out position, the front end has a cut sprocket hole cut shorter than the half-moon state, and the cut sprocket hole of the supply tape inserted from the insertion port is engaged with the drive sprocket. A device that controls the position and performs cueing is described in Patent Document 1 below.

JP 2011-181816 A

The above-mentioned Patent Document 1 makes a cut sprocket hole in which the tip of the supply tape is cut shorter than the half-moon state, and when the supply tape is inserted from the insertion port, the cut sprocket hole is positioned at a position where it is engaged with the drive sprocket. When the tape is controlled and a new tape is set in the feeder, cueing is performed.
However, in the above-mentioned Patent Document 1, sprocket holes for positioning the supply tape are provided at a predetermined interval, but there is a cumulative pitch error, and even with a single supply tape, sprocket holes at distant positions are provided. In the interval, the accumulated pitch error becomes large. Usually, the distance between the sprocket provided near the supply port in the feeder and the sprocket provided near the electronic component outlet is about 400 mm. For example, in a supply tape provided with positioning sprocket holes at a pitch of 4 mm. The pitch error between the sprocket holes separated by 400 mm is larger than the pitch error between the sprocket holes separated by 100 mm.
In order to reliably move the electronic component housed in the supply tape to the outlet, it is necessary to securely engage the sprocket that drives the supply tape and the sprocket hole of the supply tape. Such a measure for the accumulated pitch error between the sprocket holes is not disclosed.
In view of the above-described problems, the present invention provides a drive sprocket and a supply tape that move electronic components to an outlet even when there is a cumulative pitch error between sprocket holes during a loading operation in which a supply tape is newly inserted into a feeder. It is an object to provide a highly reliable feeder and a feeder control method capable of performing control and the like capable of reliably engaging with a sprocket hole.

To achieve the above object, the feeder of the present invention has a tape chute that guides the movement of the supply tape, a third tooth that fits into the sprocket hole of the supply tape inserted from the insertion port, and rotates. The third sprocket that moves the supply tape on the tape chute by the second sprocket, the second sprocket drive motor that drives the third sprocket, and the supply that is provided downstream of the third sprocket and sent by the third sprocket A second sprocket having a second tooth that fits into the sprocket hole of the tape and moving the supply tape on the tape chute by rotation; provided downstream of the second sprocket and fed by the second sprocket An exposure mechanism for exposing an electronic component in a pocket covered with a cover tape of the supply tape; A first tooth provided in a downstream direction of the exposure mechanism and fitted into a sprocket hole of the supply tape, and the supply tape for storing the electronic component exposed by the exposure mechanism is rotated on the tape chute by rotation. A first sprocket to be moved, a first sprocket drive motor for driving the second sprocket, and a control unit for controlling the first sprocket drive motor and the second sprocket drive motor, the control unit comprising: The second sprocket drive motor is stopped when a tape push-in detection sensor provided downstream of the second sprocket detects the supply tape detects the supply tape . One feature.

In the first aspect of the feeder of the present invention, the control unit, that the moving speed of the supply tape by the rotation of the front Symbol third sprocket smaller than the moving speed of the supply tape by the rotation of the second sprocket The second feature of the present invention.

  In the feeder according to the first or second feature of the present invention, the third sprocket has a one-way clutch, and the movement of the third sprocket is caused by the movement of the supply tape by the rotation of the second sprocket. A third feature of the present invention is that the tape can be rotated forward by being pulled by the supply tape moving faster than the speed.

  In the feeder according to the first to third aspects of the present invention, the exposure mechanism exposes the electronic component in the pocket of the supply tape by opening the cover tape of the supply tape. Is a fourth feature of the present invention.

In the feeder according to the first to fourth features of the present invention, the distance between the first sprocket and the second sprocket is smaller than the distance between the second sprocket and the third sprocket. The fifth feature.

  In the feeder according to the first to fifth features of the present invention, the shape of the third tooth is a round tooth shape or a shape with less catching than the second tooth. It is characterized by.

In the sixth feeder aspect of the present invention, wherein, before when Kite-loop push detecting sensor detects the leading end portion of the supply tape controls the first sprocket drive motor Thus, the seventh feature of the present invention is to slow down the rotation of the second sprocket.

  In the feeder according to the seventh aspect of the present invention, the control unit reverses by a minimum pitch feed until the tape pressing detection sensor stops detecting the supply tape after the slow-down of the rotation of the second sprocket is stopped. According to an eighth aspect of the present invention, the first sprocket drive motor is controlled by a rotation operation, and the second sprocket is rotated by a reverse rotation operation by a minimum pitch feed.

  In the feeder according to the eighth aspect of the present invention, the control unit controls the first sprocket drive motor from the position where the tape pressing detection sensor does not detect the supply tape, and controls the second sprocket. According to a ninth feature of the present invention, the tip is rotated at a predetermined speed, the supply tape is moved by a predetermined amount, and the tip is moved to a position immediately before reaching the cutter blade of the exposure mechanism.

  In the feeder according to the ninth aspect of the present invention, the control unit controls the first sprocket drive motor from a position immediately before reaching the cutter blade of the exposure mechanism, and controls the second sprocket to a predetermined height. The tenth feature of the present invention is that the tape is rotated at a low speed and an ultra-low acceleration to move the supply tape by a predetermined amount.

  In the feeder according to the first feature or the second feature of the present invention, the control unit is instructed to start an unloading operation from an operation panel that transmits an operation signal in response to an operation of an operator. When a tape insertion detection sensor that detects and detects the presence of the supply tape that is provided in the downstream direction of the insertion port detects the presence of the supply tape, the predetermined amount is determined according to a preset reverse feed amount. It is an eleventh feature of the present invention that the supply tape is moved in the reverse direction.

  In the feeder according to the eleventh aspect of the present invention, a plurality of lanes to which a plurality of supply tapes are respectively sent in parallel, and the operation panel for transmitting an operation signal corresponding to an operation of an operator to the control unit are provided. The operation panel has a selection button for selecting the lane, a return button for moving the supply tape in a reverse direction by a second predetermined amount, and an unloading operation to be started by an operator's operation. The twelfth feature of the present invention is that it includes an unloading button and two display units for displaying the operation of the operation panel in 7 segments.

  In the feeder according to the twelfth aspect of the present invention, when the control unit detects that at least one button of the operation panel is pressed during the operation of moving the supply tape in the reverse direction. The thirteenth feature of the present invention is that the operation of moving the supply tape in the reverse direction is interrupted.

  In the feeder according to the first feature or the second feature of the present invention, the fourteenth feature of the present invention is that the third sprocket has a one-way clutch and does not rotate in reverse.

In order to achieve the above object, the feeder control method of the present invention is configured such that the sprocket hole at the tip of the supply tape inserted from the insertion port is fitted to the teeth of the third sprocket and the supply is performed by the rotation of the third sprocket. The tape is rotated until the tape is fitted to the teeth of the second sprocket, and the tape indentation detection sensor, which is provided downstream of the second sprocket and detects the presence or absence of the supply tape, detects the supply tape . 3 to stop the rotation of the sprocket further the first fifth aspect of the present invention to carry out fitting of the supply tape to the first sprocket after the exposure of the electronic components has been performed by the exposing mechanism.

In the first 5 feeder control method aspect of the present invention, the distance of the between the first sprocket second sprocket smaller than the spacing of said third sprocket and the second sprocket, the third sprocket, round A tooth having a tooth shape or a shape with less hooking than the tooth shape of the second sprocket, and a one-way clutch that does not reversely rotate, and the moving speed of the supply tape by the rotation of the third sprocket is determined by the second sprocket If the tape indentation detection sensor detects the leading end of the supply tape, the sprocket drive motor for driving the second sprocket is controlled to control the second sprocket. Stops the sprocket from slowing down and stops the second sprocket from slowing down. After stopping, the sprocket drive motor is controlled by reverse rotation operation with minimum pitch feed until the tape indentation detection sensor no longer detects the supply tape, and the second sprocket is rotated with reverse rotation operation with minimum pitch feed. From the position where the tape push-in detection sensor no longer detects the supply tape, the sprocket drive motor is controlled, the second sprocket is rotated at a predetermined speed, the supply tape is moved by a predetermined amount, and the exposure mechanism The tip of the supply tape is moved at a high speed to a position immediately before reaching the cutter blade, and the sprocket drive motor is controlled from a position immediately before reaching the cutter blade of the exposure mechanism, so that the second sprocket is moved to a predetermined position. And rotating the supply tape by a predetermined amount by rotating at an ultra-low speed and an ultra-low acceleration. It characterized the first 6.

In order to achieve the above object, the feeder according to the present invention has a tape chute for guiding the movement of the supply tape, teeth that fit into the sprocket holes of the supply tape inserted from the insertion port, and the supply by rotation. One sprocket that moves the tape on the tape chute, one sprocket drive motor that drives the one sprocket, and a sprocket hole of the supply tape that is provided downstream of the one sprocket and sent by the one sprocket The other sprocket having teeth and moving the supply tape on the tape chute by rotation, an exposure mechanism for exposing an electronic component in a pocket covered by a cover tape of the supply tape sent by the other sprocket, The other sprocket drive that drives the other sprocket Chromatography data, and a control unit for controlling the other of the sprocket drive motor and the one of the sprocket drive motor, wherein the control unit, the tape for detecting the presence or absence of said supply tape provided downstream of said other sprocket According to a seventh feature of the present invention, when the indentation detection sensor detects the supply tape , the one sprocket drive motor is stopped.

  According to the present invention, at the time of loading, it is possible to eliminate the influence of the feed hole accumulated pitch error of the supply tape, and to realize accurate fitting between the teeth of the sprockets installed at a plurality of positions and the tape feed hole. . As a result, a highly reliable feeder and supply tape movement control method can be provided.

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 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 sectional drawing which shows one Example of the position cut in a sprocket hole in order to insert the supply tape fitted to the tooth | gear of the 3rd sprocket in the feeder of this invention. It is sectional drawing which shows one Example of the position cut in a sprocket hole in order to insert the supply tape fitted to the tooth | gear of the 2nd sprocket in the feeder of this invention. It is a figure which shows the first half step of loading operation | movement of the supply tape of this invention. It is a figure which shows the latter half step of loading operation of the supply tape of this invention. It is a figure which shows after completion | finish of loading operation | movement of the supply tape of this invention. It is a timing chart figure which shows the operation | movement of each part in the loading operation | movement of this invention. It is a figure which shows one Example of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure for demonstrating one Example of the unloading operation | movement in the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a flowchart of one Example of the automatic loading operation | movement in the electronic component mounting apparatus 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 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. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention. It is a figure which shows one Example of the digital display part of the operation panel surface of the operation panel of the feeder of this invention.

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.

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 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.
Each block includes a component supply area 13 in which a feeder cart having a large number of feeders is set, a mounting head 6, a mounting head body 11 that moves the mounting head 6, and a suction holding state of electronic components in the suction head 6. A component recognition camera 19 for imaging 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 from the component supply area 13, and the component recognition camera 19 monitors the suction holding state of the electronic component. To the predetermined position, and the adsorbed 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.

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 roughly includes a base portion 51, a feeder fixing portion 52 for fixing a feeder shown in FIG. 4 to be described later, a handle portion 53, and a component supply reel 70 (see FIGS. 8A to 8C). The component supply reel storage unit 54 is provided.
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 provided at the upper portion of the feeder cart 50, and 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, and the feeder signal connector 52d is connected to the feeder 2 of the feeder 2. The interface unit 36 is connected. 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 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).

  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 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 feeder 2 (for example, a tape insertion detection sensor 31, a sprocket drive motor 33, a tape push-in detection sensor 45, a sprocket drive motor 47, etc.) by a control line (not shown). Yes.

The feeder 2 in FIG. 4 includes a tape pressing plate 38 that presses the supply tape 60 inserted from the insertion port C, an outlet 44 for the suction nozzle of the mounting head 6 to suck electronic components, and the feeder 2 as a component supply cart 50. A cassette fixing portion 35 is provided for fixing to the cassette. 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 feeder 2 is provided with a third sprocket 32 for inserting the front end portion 60 a of the supply tape 60 into the feeder 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 order of the third sprocket 32, the second sprocket 43, and the first sprocket 41 from the insertion port C of the feeder 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. 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 teeth on a vertical line passing through the rotation center of each sprocket. (See FIGS. 5B, 7A, 6B, and 7B).
Then, 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 move in the forward direction (A direction). Rotate and move. Accordingly, the supply tape 60 moves in the forward direction and reaches the second sprocket 43, so that the sprocket hole 64 of the tip 60a of the reached supply tape 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 feeder 2 does not push and cuts the cover tape 61 of the supply tape 60 by pulling from the downstream direction.

The feeder 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 via a signal transmission / reception cable (not shown) and a signal from a sensor (described later) in the feeder 2. Control and perform signal exchange with the main body 1. 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.
Further, the feeder 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. 4, the operation panel 48 is provided on the surface of the feeder handle for carrying the feeder 2, but may be provided anywhere as long as the operation and visual recognition are possible.

In FIG. 4, 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 moves the supply tape 60 downstream on the tape chute 2S in order to fit the sprocket hole 64 of the tip 60a of the supply tape 60 to the teeth 43h0 of the second sprocket 43 of the feeder 2. Push in the direction. Further, the second sprocket 43 performs an operation of pushing into the outlet 44 of the electronic component 4.

Now, during the loading operation, the sprocket hole 64 of the front end portion 60a of the supply tape 60 that has been fitted with the teeth 32h of the third sprocket 32 and moved in the downstream direction reaches the second sprocket 43. The sprocket hole 64 of the tip 60a of the supply tape 60 that has reached the second sprocket 43 is engaged with the teeth 43h of the second sprocket 43, and then the supply tape 60 has a rotational force of the second sprocket 43 having a high rotational speed. To move on the tape chute 2S (transfer by speed difference). In other words, the sprocket hole 64 at the head of the tape 60 moving at a low speed can be caught up and fitted even if the tooth 32h moving at a high speed is initially out of position.
At the time of the above-mentioned connection, the sprocket hole 64 of the tip end portion 60a of the supply tape 60 does not immediately engage with the teeth 43h of the second sprocket 43, and is fitted after sliding slightly (play loss). The tape push-in detection sensor 45 is provided on the downstream side of the second sprocket 43 in order to reliably grasp the tip end portion 60a in consideration of this play loss.
During the loading operation, the supply cassette controller 37 controls the sprocket drive motor 47 to slow down the rotation of the second sprocket 43 when the tape pressing detection sensor 45 detects the leading end 60a of the supply tape 60. Let

The first sprocket 41 mainly drives the supply tape 60. The feeder 2 further includes a pressing mechanism (not shown) for pressing the supply tape 60 against the first sprocket 41 and the mounting head 6 so that the first sprocket 41 is securely fitted to the sprocket hole 64 (see FIG. 3). The suction nozzle has an outlet 44 for sucking the electronic component 4.
The take-out port 44 is provided between the first sprocket 41 and the pushing sprocket 43 of the tape chute 2S.
Further, the pressing mechanism has a separation mechanism 42 that cuts or peels off the cover tape 61 shown in FIG. 3 and separates it from the carrier tape 62 in order to take out the electronic component 4 from the supply tape 60. For example, the separation mechanism 42 includes a cutter that cuts the cover tape 61 and a cover tape guide that guides the cut cover tape so as not to obstruct the removal of the electronic component 4 at the outlet 44 (not shown). . The shape of the cover tape guide portion viewed from above is a triangle with the cutter attachment portion as a vertex.
Therefore, the cut cover tape 61 moves along the cover tape guide while opening on both the left and right sides (direction perpendicular to the paper surface of FIG. 4). On the other hand, the carrier tape 62 from which the cut cover tape has been separated moves along the bottom surface of the cover tape guide to the take-out port 44, which is a component take-out position.
Further, the main body 1 has a cutting mechanism (not shown) for cutting the carrier tape 62 from which the cover tape 61 has been peeled to a predetermined length in the downstream direction of the first sprocket 41 of the feeder 2. The predetermined length is longer than the length between the positions where the push sprocket 43 and the third sprocket 32 are fitted in the sprocket holes 64.
For this reason, since the first sprocket 41 of the feeder 2 is not pressed and pulled from the downstream direction to cover the cover tape 61 of the supply tape 60, the cover tape is not peeled off. As a result, the generation of debris and paper scraps is small, and the generation of dust can be reduced.
Further, as described above, since the cover tape 61 is sent and cut together with the supply tape 60 in the upstream direction, the removal operation and the recovery mechanism of the peeled cover tape, which is necessary in the conventional feeder, are unnecessary.
Further, the first sprocket 41 pulls the leading end portion 60 a of the supply tape 60 to the separation mechanism 42 when loading the supply tape 60 into the feeder 2. Further, the feeder 2 includes a tape insertion detection sensor 31 that detects the presence or absence of the supply tape between the take-out port 44 and the push sprocket 43 in the upstream direction of the first sprocket 41.

Next, referring to FIG. 4, a loading function for mounting the supply tape 60 on the feeder 2 when the supply tape 60 is not mounted will be described. 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 electronic component supply apparatus (main body) 1 is in operation.
When a worker sets a new supply tape 60 on the feeder 2, for example, a barcode attached to the reel of the supply tape 60 with a barcode reader connected to the component mounting device is used in order to prevent crossover. 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) on the operation panel 48 is pressed, the sprocket drive motor 33 does not rotate and the third sprocket 32 does not rotate, so that no feeding operation is 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, at the time of the loading operation, as shown in FIG. 8A, the worker sets the supply tape 60 in the introduction part (component supply reel storage part 54 (see FIG. 2)).
Then, the operator inserts the front end portion 60a of the supply tape 60 from the tape insertion opening C under the tape pressing plate 38 to the position where the sprocket hole 64 and the sprocket teeth are fitted on the third sprocket 32.
The worker may remove the tape retainer plate 38 and insert the tape retainer plate 38 into a position where the teeth 32h0 of the third sprocket 32 and the sprocket hole 64 are fitted, and then attach the tape retainer plate 38.

Next, the worker presses the loading button 105 on the operation panel 48.
The supply cassette control unit 37 of the feeder 2 detects that the loading button 105 of the operation panel 48 has been pressed, and rotates the third sprocket 32 in the forward direction. By this rotation, as shown in FIG. 8B, the supply tape 60 is sent out in the A direction, and the sprocket hole 64 of the front end portion 60 a of the supply tape 60 reaches a position where it is fitted 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 feeder 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.
Further, the teeth 32h of the third sprocket 32 have a height T ₃ smaller than the thickness t ₂ of the carrier tape 62 and have no corners such as a conical shape, as shown in FIGS. 5A, 5B, and 7A. It has a gentle curved surface. Further, the teeth 43h of the second sprocket 43, FIG. 6A, as shown FIG. 6B, FIG. 7B, the height T ₂ greater than the thickness t ₂ of the carrier tape 62, and, as compared with the teeth 32h, the pin-shaped It has an acute angle shape such as.
In FIG. 5A or 6A, the tape chute 2S is a guide that is provided generally horizontally above the feeder 2 and moves the supply tape 60 to the tape chute 2S. The supply tape 60 moves while sliding on the tape chute 2S of the feeder 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 feeder 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 third sprocket due to the feed hole accumulated pitch error of the supply tape 60. Even when the 32 teeth and the sprocket holes 64 cannot be fitted at the same time, the supply tape 60 can be automatically loaded.
Thereafter, the supply cassette control unit 37 of the feeder 2 stops the rotation of the third sprocket 32.

In the feeder 2 shown in FIG. 4, a 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. Further, since the tape 60 is fitted to the round sprocket teeth of the third sprocket 32, the tape 60 runs while sliding on the sprocket teeth to some extent, but the third sprocket 32 rotates while being pulled by the tape 60 by the one-way clutch 32C. The tape 60 can run with almost no resistance.
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. 4, the supply tape 60 is driven so as to be pulled by the drive sprocket 41 when the normal electronic component 4 is taken out, so that the cover tape is also cut reliably. However, when the supply tape 60 is loaded (inserted into the feeder), the supply tape 60 is pushed into the cutter of the separation mechanism 42 by the push 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 can be positioned at the outlet 44 of the electronic component 4. it can.

Next, the loading operation of the supply tape 60 to the feeder 2 will be described in more detail with reference to FIGS. 4, 8A, 8B, and 9. FIG. FIG. 9 is a diagram showing an operation timing chart of each part in this operation.
(A) is operation | movement of the sprocket drive motor 47, and a vertical axis | shaft shows speed. In the speed (a), a positive speed indicates movement of the supply tape 60 in the direction of arrow A (forward direction) shown in FIG. 4, and a negative speed indicates movement in the direction of arrow B (reverse 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) indicates ON / OFF of the operation of the sprocket drive motor 33, “ON” indicates a high level, and “OFF” indicates 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.

Hereinafter, each step will be described with reference to FIG. Here, the tape insertion detection sensor 31 and the tape push-in detection sensor 45 constantly monitor the presence or absence of a tape, and output a detection signal to the supply cassette control unit 37 when the tape insertion detection sensor 31 and the tape insertion detection sensor 45 change from non-existence to presence / absence. .
First, the preloading operation will be described.
The operator removes the tape presser plate 38, inserts the tip 60a of the supply tape 60 onto the tape chute 2S, and engages the teeth 32h0 of the third sprocket 32 and the sprocket hole 64 so that the tape presser from above. The plate 38 is attached.
Next, the worker presses the loading SW 105 of the operation panel 48.

<State (i)>
When the loading SW 105 is turned on, the supply cassette 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 a predetermined interval time T1 has elapsed, the sprocket drive motor 33 is turned on. The timer is started simultaneously with the ON operation of the sprocket drive motor 33.
<State (ii)>
The supply cassette control unit 37 turns off the sprocket drive motor 33 after the timer has elapsed a predetermined time T0.
<State (iii)>
The supply cassette control unit 37 checks whether the tape insertion detection sensor 31 is “present” or “not present” after a predetermined interval time T2 has elapsed after turning off the sprocket drive motor 33.
When the detection result of the tape insertion detection sensor 31 is “none”, the supply cassette control unit 37 keeps the sprocket drive motor 33 OFF and ends the preloading operation.
<State (iv)>
When the detection result of the tape insertion detection sensor 31 is “present”, the supply cassette control unit 37 turns on the sprocket drive motor 33 and starts the rotation operation of the sprocket drive motor 47 (in step S1). Migration).

<Step S1>
At this time, the supply cassette control unit 37 rotates the sprocket drive motor 47 in accordance with a preset tape feed amount. Further, the supply cassette control unit 37 monitors the detection result of the tape pressing detection sensor 45 while the supply tape 60 is moving (tape feeding).
<State (v)>
When the detection result of the tape push-in detection sensor 45 is “Yes”, the supply cassette control unit 37 slows down the sprocket drive motor 47 (OFF) without waiting for completion of the predetermined stroke movement, and the sprocket The sprocket drive motor 33 that has been rotating in conjunction with the drive motor 47 is turned off.
In addition, the supply cassette control unit 37 turns off the feeder 2 when the detection result of the tape pressing detection sensor 45 remains “none” even after the rotation operation according to the preset tape feed amount is completed. Stop abnormally and turn off the sprocket drive motor 33.
That is, in step S1, the sprocket drive motors 47 and 33 rotate together, and the supply tape is inserted into the feeder 2. Then, when the tape pressing detection sensor 45 detects the leading end portion 60a of the supply tape 60, the rotation of the sprocket drive motor 33 is stopped, and the sprocket drive motor 47 is forcibly stopped. Further, even if a predetermined amount of feeding (a predetermined amount of rotation) is performed, if the tape pressing detection sensor 45 does not detect the leading end portion 60a of the supply tape 60, it abnormally stops.

<Step S2>
The supply cassette control unit 37 waits for a predetermined interval time T3 after the rotation of the sprocket drive motor 47 is stopped.
<State (vi)>
The supply cassette control unit 37 performs the reverse feed operation of the sprocket drive motor 47 at the minimum pitch (taping standard: 1 mmP) after a predetermined interval time T3 has elapsed until the detection result of the tape push-in detection sensor 45 becomes “None”. repeat.
<State (vii)>
The supply cassette control unit 37 stops the reverse feed operation of the sprocket drive motor 47 when the detection result of the tape pressing detection sensor 45 becomes “none”.
The supply cassette control unit 37 proceeds to step S3 after a predetermined interval time T4 has elapsed from the state (vii).
That is, in step S2, in consideration of the overrun amount in step S1, the position of the leading end 60a of the supply tape 60 is determined, and the tape pressing detection sensor 45 no longer detects the supply tape (out of the detection range). The supply tape 60 is returned by the reverse rotation operation with the minimum pitch feed. At this time, the sprocket drive motor 47 rotates in reverse at the minimum pitch, but the sprocket drive motor 33 stops rotating (OFF). The third sprocket 32 is not reversed by the one-way clutch 32C, but the return amount is very small (minimum pitch) and the height of the teeth 32h of the third sprocket 32 is low. The supplied supply tape 60 slides and moves in the downstream direction on the tape chute 2S by the thrust of the sprocket drive motor 47.

<Step S3>
The supply cassette control unit 37 rotates the sprocket drive motor 47 at a predetermined speed with a preset step S3 feed drive waveform, and performs a predetermined amount of high-speed tape feed operation (single feed). The predetermined amount is a feed amount from the position where the tip end portion 60a is stopped in step S2 to the position immediately before reaching the cutter blade of the separation mechanism 42.
That is, in step S3, the leading end portion 60a of the supply tape 60 is fed to the position immediately before the cutter blade of the separation mechanism 42 by a single feed operation of a predetermined amount. This is because the position of the tip end portion 60a is determined because the tip end portion 60a stops at a predetermined position in step S2. Since the distance between the cutter blade and the predetermined position is determined by the design dimensions, the supply tape 60 can be moved to the position immediately before the cutter blade if the supply tape is fed in the downstream direction by the length.

<Step S4>
The supply cassette controller 37 rotates the sprocket drive motor 47 with a preset step S4 feed drive waveform to perform a tape feed operation (one feed).
In this step S4 feed driving waveform, the supply cassette control unit 37 rotates the sprocket drive motor 47 at an ultra-low speed and an ultra-low acceleration.
That is, in step S4, “insert → cover tape cutting” (Russell process) is performed in the supply tape insertion sequence of the separation mechanism 42 to the cover tape cutting zone. For example, the supply cassette control unit 37 rotates the sprocket drive motor 47 at an ultra-low speed and an ultra-low acceleration, and sends it once at a predetermined amount. As a result, since a predetermined feeding operation is performed at an ultra-low speed and an ultra-low acceleration, the cover tape 61 can be opened in a russell shape without peeling off from the supply tape 60.

<Step S5>
The sprocket drive motor 47 is rotated by a predetermined feed amount and a predetermined number of feeds in accordance with the part library setting (feed pitch) of the parts stored in the supply tape 60.
That is, in step S5, a total of a predetermined number of pitch feeding operations are performed to cue the position of the pocket 63 of the tip end portion 60a of the supply tape 60 to the suction position (the outlet 44). 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 supply cassette control unit 37 captures and uses these necessary information via the feeder signal connector 52d.

Next, the operation panel of the feeder of the present invention will be described with reference to FIGS. 10A, 10B, 10C, and 10D. FIG. 10A is a diagram illustrating an example of the operation panel surface 100 of the operation panel 48 of the feeder 2 according to the present invention.
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. Further, the supply cassette control unit 37 starts the loading operation of the feeder 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.

10B to 10D are diagrams showing details of the digital display unit 101 of FIG. 10A.
The display on the digital display unit 101 is 7-segment display during the loading operation. The display continues for the predetermined time (for example, for 0.5 sec), and is repeated in the order of FIG. 10B → FIG. 10C → FIG. 10D → FIG. 10B →.
If the dots 113, 123, and 133 are displayed, the first lane is selected. If the dots 114, 124, and 134 are displayed, the second lane is selected.

When the above-described loading operation is performed in a state where the component supply cart 50 is set in the main body 1, the main body 1 can start the mounting operation upon receiving completion of the loading operation from each feeder.
On the other hand, when the above-described loading operation is performed in a state where the component supply cart 50 is not set in the main body 1, after the loading operation is completed, the component supply cart 50 is set in the main body and the mounting process by the main body is performed. it can.
Moreover, if the component supply cart 50 is set in the main body 1, the main body can immediately shift to the mounting operation.

As described above, according to the embodiment of FIGS. 1 to 10D, when a supply tape is newly inserted into the feeder, even if there is an accumulated pitch error between the sprocket holes, the drive for moving the electronic component to the outlet is performed. It is possible to realize a highly reliable feeder, a feeder control method, and an electronic component mounting apparatus capable of performing control and the like capable of reliably engaging the sprocket and the sprocket hole of the supply tape. Furthermore, it is possible to greatly reduce the parts replacement time at the time of setup change and the parts replenishment time at the time of shortage.
Furthermore, the tape feed by the first and second sprockets is stable, the tape does not peel off, there is no disturbance, and the feed position (for example, the position of the electronic component 4 at the outlet 44) is robust. improves.
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.

Finally, when the above-described loading operation is performed in a state where the parts supply cart 50 is set in the main body 1, the main body 1 can receive the loading operation completion from each feeder and start the mounting operation. .
On the other hand, when the above-described loading operation is performed in a state where the component supply cart 50 is not set in the main body 1, after the loading operation is completed, the component supply cart 50 is set in the main body and the mounting process by the main body is performed. it can.
Moreover, if the component supply cart 50 is set in the main body 1, the main body can immediately shift to the mounting operation.
In this embodiment, the distance between the detection position of the tape pressing detection sensor 45 and the extraction position of the outlet 44 by the suction nozzle of the mounting head 6 is known. Accordingly, when the electronic component 4 is housed in the leading pocket 63, the tape pressing detection sensor 45 detects the leading end 60a of the supply tape 60, thereby mounting the pocket 63 at the leading (tip 60a) tape. The distance to the take-out position by the suction nozzle of the head 6 is determined. This is because, if the sprocket teeth 43h of the second sprocket 43 are fitted in the sprocket holes 64 of the supply tape 60, the positions of the pockets 63 can be known from the positions of the sprocket holes 64, that is, the pockets 63 at the head of the tape. Thus, the pocket 63 can be moved to the take-out position of the outlet 44 (tape feed) and stopped to perform a cueing operation in preparation for taking out the parts.
Not limited to this, after the pocket 63 at the beginning of the tape is stopped at the take-out position as described above, the pocket 63 at the take-out position of the take-out port 44 is imaged each time it is sent by one pitch with the camera provided in the mounting head 6. Alternatively, it may be recognized and recognized from the captured image whether the electronic component 4 is stored in the pocket 63. In other words, when the pocket 63 changes from the absence of a part to the presence of a part by the image recognition process, the tape feeding is stopped and the cueing is performed. By doing in this way, even when the electronic component 4 is not stored in the leading pocket 63, the electronic component 4 can be taken out by taking out with the suction nozzle of the first mounting head 6 loaded with the new tape 60. .
Further, the position of the pocket 63 itself or the electronic component 4 in this pocket 63 in the component supply area 13 is grasped by a recognition process from the captured image, and this grasped position is determined by the mounting head 6. The suction nozzle may be positioned when taking out the parts. Also, without cueing by recognizing the presence or absence of a component in the pocket 63, when the leading pocket 63 is stopped at the component extraction position, the component extraction position is imaged with a camera to recognize the position of the component or the pocket 63 itself. It may be processed and grasped, and the position for taking out the components of the suction nozzle of the mounting head 6 may be determined at this position.
Further, in the present embodiment, the separation mechanism has been described in which the cover tape 61 on the upper part of the pocket 63 in the component take-out portion is removed by the Russell process (that is, the electronic component 4 is exposed). However, the present invention is not limited to this, and the present invention can be applied to a separation mechanism that removes the cover tape 61 from the supply tape 60 and exposes the electronic component 4.

The second embodiment of the present invention will be described below. Also in the second embodiment, the electronic component mounting apparatus 1 described in FIG. 1, the feeder cart 50 described in FIG. 2, the supply tape 60 described in FIG. 3, the feeder 2 shown in FIG. 4, and FIGS. 5B to 5C. The third sprocket shown and the second sprocket shown in FIGS. 6B to 6C are used.
This unloading operation is an operation in which the in-process supply tape 60 that has already been loaded in the feeder 2 runs backward, can be removed from the feeder 2 and collected. By the cover tape processing method (Russell process) of the separation mechanism 42 described in the first embodiment, it is possible to move back without feeding the cover tape even when the supply tape is reversely fed, and to greatly reduce the part replacement time at the time of setup change. Can do.

FIG. 11 is a diagram for explaining an embodiment of the unloading operation in the feeder according to the present invention.
First, the worker removes the tape press plate 38 and operates the lane selection key 101 on the operation panel 48 to select a desired lane.
Thereafter, the worker presses the return button 104 on the operation panel 48. For example, in the operation panel 48 of FIG. 10A, the worker presses the loading button 105, and simultaneously presses the return button 104 within 1 sec while pressing. By continuing this simultaneous pressing state for 1 sec or longer, the supply cassette control unit 37 of the feeder 2 starts an unloading operation.
As a constraint condition for the supply cassette control unit 37 to start the unloading operation, the tape push-in detection sensor 45 must be in a state where the supply tape is “present”.

The supply cassette controller 37 detects that the return button 104 has been pressed, and moves the supply tape 60 in the reverse direction (in the direction of arrow B) by a predetermined amount according to a preset reverse feed amount. The preset reverse feed amount is determined in consideration of the amount by which the front end 60a of the supply tape 60 (the tape length up to the front of the cutting mechanism of the main body 1 can be taken out) can be taken out.
Since the front end portion 60a of the supply tape 60 moves in the reverse direction to the position where it is disengaged from the second sprocket 43 (upstream direction of the second sprocket 43), the worker at this point moves the supply tape 60 forward (upstream direction). To remove the supply tape 60 from the feeder 2.

  When the supply cassette control unit 37 detects that at least one button of the operation panel 48 is pressed during the operation of moving the supply tape 60 in the reverse direction, the supply cassette 60 moves the supply tape 60 in the reverse direction. The unloading operation to move to is forcibly interrupted.

12A to 12C are diagrams showing details of the digital display unit 101 in FIG. 10A.
The display on the digital display unit 101 is 7-segment display during the unloading operation. The display continues for the predetermined time (for example, for 0.5 sec), and is repeated in the order of FIG. 12A → FIG. 12B → FIG. 12C → FIG. 12A →.
If the dots 213, 223, and 233 are displayed, the first lane is selected, and if the dots 214, 224, and 234 are displayed, the second lane is selected.

In Example 2 of the above-described unloading operation, the cover tape was processed by the cover tape processing method (Russell process). However, in this embodiment, any separation mechanism that cuts the cover tape can be unloaded.
Further, in the above-described second embodiment, the two-drive system is used in which three sprockets are driven by two drive motors. However, this embodiment may be a three-drive system in which three sprockets are driven by three drive motors.

  As described above, according to the embodiment of FIGS. 1 to 7A, FIG. 11, FIG. 12A, FIG. 12B, and FIG. 12C, when the supply tape is newly inserted into the feeder, the feeder 2 has already been loaded. The in-process supply tape 60 can be quickly and easily removed in the upstream direction. As a result, it is possible to greatly reduce the parts replacement time at the time of setup change and the parts replenishment time at the time of shortage.

  In the first and second embodiments, the operator operates the operation panel to start the loading operation. However, the electronic component mounting apparatus 1 may automatically start the loading operation.

The third embodiment of the present invention will be described below. Also in the third embodiment, the electronic component mounting apparatus 1 described in FIG. 1, the feeder cart 50 described in FIG. 2, the supply tape 60 described in FIG. 3, the feeder 2 illustrated in FIG. 4, FIGS. The third sprocket shown in FIG. 7A and the second sprocket shown in FIGS. 6B to 6C and 7B are used.
In this loading operation, the next supply tape 60 ′ is set in addition to the supply tape 60 of the feeder 2 that has already been loaded with the electronic component 4 and is used for component mounting, and the supply tape 60 currently in use disappears. Then, the next supply tape 60 ′ is automatically loaded.

14A to 14D are diagrams for explaining an embodiment of the loading operation in the feeder of the present invention. 14A to 14D, 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. 14A, the worker first removes the tape presser plate 38, lifts the supply tape 60 currently in use, and passes over the tape presser 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 feeder 2.

When the end portion 60 "of the supply tape 60 in use enters the feeder 2 and passes through the tape insertion detection sensor 31, the tape insertion detection sensor 31 detects the supply tape 60" none "and controls each time the detection is made. The control device 80 determines that the end portion 60 "of the supply tape 60 has passed when the supply tape 60" no "state 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 the supply tape 60 in use (2) Automatic loading operation of the next supply tape 60 ′

First, (1) the operation of forcibly feeding the supply tape 60 in use will be described with reference to FIG. FIG. 15 is a view 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 feeder 2 to continuously rotate the 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 automatic loading operation of the next 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.
As for the automatic loading operation, the operations (see FIG. 9) of the state <i> to the state <iv> described in the first embodiment of the present specification are executed, and the process proceeds to step S1. The subsequent operation is as described with reference to FIG.
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 as shown in FIG.
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.

  Next, this embodiment will be described with reference to the flowchart of one embodiment of the automatic loading operation in the electronic component mounting apparatus of the present invention shown in FIG. 13 is executed by the control device 80 by controlling each device of the main body 1, the supply cassette control unit 37 of the feeder 2, and other devices.

In step S801, it is determined whether a continuous suction abnormality (no component) has occurred. If not, the process proceeds to step S888, and normal processing is executed. If it occurs, the process proceeds to step S802.
In step S802, it is determined whether or not the tape insertion detection sensor 31 has detected the end portion 60 ". If not, the process proceeds to step S888 to execute normal processing. The end portion 60" is detected. If so, the process proceeds to step S803.
In step S802, the control device 80 outputs a forced feed command ((1) forced feed command of the used supply tape 60) to the supply cassette control unit 37 of the corresponding feeder 2, and starts a forced feed operation.
In step S804, it is monitored whether the forced sending command is cleared. If cleared, the process proceeds to step S805. If not, the process proceeds to step S888, and normal processing is executed. Occurs when any button on the operation panel 48 is pressed by the operator. Also, for example, clearing of the forced delivery command occurs when there is an abnormality in the feeder 2 during the forced delivery operation.

In step S805, it is checked whether the feeder 2 has an abnormality.
In step S806, if there is an abnormality, the process proceeds to step S888, and the abnormality process is executed. If not, the process proceeds to step S807.
In step S807, the detection information of the tape insertion detection sensor 31 is confirmed.
In step S808, if the tape insertion detection sensor 31 detects that the supply tape is present, the process proceeds to step S809. If there is no supply tape (no detection), the process proceeds to step S888. Execute the process.

In step S809, the control device 80 outputs a loading command (command) ((2) automatic loading operation of the next supply tape 60 ′) to the supply cassette control unit 37 of the corresponding feeder 2, and starts the automatic loading operation. .
In step S810, it is monitored whether or not the automatic loading command is cleared. If cleared, the process proceeds to step S811, and if not, the process proceeds to step S888, and normal processing is executed. Occurs when any button on the operation panel 48 is pressed by the operator. For example, clearing of the automatic loading command occurs when there is an abnormality in the feeder 2 during the loading operation.

In step S811, it is checked whether the feeder 2 has an abnormality.
In step S812, if there is an abnormality, the process proceeds to step S888, and the abnormality process is executed. If not, the process proceeds to step S813.
In step S813, the state transits to a suckable state, and suction of the electronic component 4 is started.

  According to the third embodiment described above, the worker does not need to wait for the next supply tape to be set after the current tape is exhausted, and at any time before the supply tape 60 is exhausted, the next time it is convenient. Since the supply tape 60 'can be set efficiently, the work can be efficiently performed and the loading is automatically executed, so that the part replacement time during the setup change can be greatly shortened.

According to Example 1 thru | or Example 3, the supply tape for subsequent replenishment is not physically connected. That is, no splicing tape for connection is required.
Further, the next supply tape can be set in the supply unit at any time while there is a supply tape in use.
In addition, it is not necessary to monitor the replenishment timing severely, and it is possible to reduce the worker's restraint time.
In addition, since the splicing tape as a consumable is not necessary, the running cost can be reduced. That is, material costs can be reduced.
In addition, parts can be replenished to the lane where the parts have run out (set of supply tape) without loading the feeder.
In addition, the reliability of the automatic loading operation has been improved while eliminating the influence of the splicing passage rate (the occurrence of a choke stop (fluctuation of the device operation rate) due to clogging), which has been affected by the skill of the worker.
In addition, by carrying out the cutting position of the tape tip at a predetermined position, even with a supply tape with a different feed pitch, it is possible to automatically cue the pocket position to a predetermined suction position. There is no need to check the feed position after loading the tape.
Furthermore, since the electronic component mounting apparatus is compatible with ACV, an automatic loading operation can be prohibited for a component that has not been verified. The subsequent supply parts can be collated and the automatic loading operation can be prohibited, as in the conventional splicing subsequent tape.

  1: Electronic component mounting device (main body), 2: Feeder, 2S: Tape chute, 4: Electronic components, 5a to 5d: Chute, 6: Mounting head, 11: Mounting head body, 13: Component supply area, 16: Up and down Rail for movement, 18: Rail for left and right movement, 19: Component recognition camera, 31: Tape insertion detection sensor, 32: Third sprocket, 32C: One-way clutch, 33: Sprocket drive motor, 34, 46: Worm gear, 35: Cassette Fixing part 36: Interface part 37: Supply cassette control part 38: Tape pressing plate 41: First sprocket 42: Separation mechanism 45: Tape pressing detection sensor 43: Second sprocket 44: Extracting port 47: Sprocket drive motor, 48: Operation panel, 50: Fi Dakarto, 51: Base part, 51a: Wheel fixing part, 51b: Lock pin, 52: Feeder fixing part, 52a: Feeder base, 52b: Positioning hole, 52c: Feeder fixing part guide, 52d: Feeder signal connector, 52e: Feeder Guide, 53: Handle part, 53a: Handle, 53a: Side plate, 53c: Tip, 54: Parts supply reel storage part, 60, 60 ': Supply tape, 60a, 60a': Tip, 61: Cover tape, 62: Carrier tape, 63: Pocket, 64: Sprocket hole (tape feed hole), 70, 70 ': Parts supply reel, 80: Main body control device, A: Forward direction, B: Reverse direction, C: Tape insertion slot, LU, LD, RU, RD: Block, P: Substrate, D, U: Line.

Claims (17)

Tape chute to guide the movement of the supply tape,
A third sprocket having a third tooth for fitting into a sprocket hole of the supply tape inserted from an insertion port, and moving the supply tape on the tape chute by rotation;
A second sprocket drive motor for driving the third sprocket;
A second tooth that is provided downstream of the third sprocket and that fits into a sprocket hole of the supply tape sent by the third sprocket and that moves the supply tape on the tape chute by rotation; 2 sprockets,
An exposure mechanism that exposes an electronic component in a pocket that is provided in a downstream direction of the second sprocket and is covered by a cover tape of the supply tape that is sent by the second sprocket;
A first tooth provided in a downstream direction of the exposure mechanism and fitted in a sprocket hole of the supply tape; and the supply tape for storing the electronic component exposed by the exposure mechanism is rotated on the tape chute The first sprocket to move,
A first sprocket drive motor for driving the second sprocket; and
A controller for controlling the first sprocket drive motor and the second sprocket drive motor;
The control unit stops the second sprocket drive motor when a tape pressing detection sensor provided in a downstream direction of the second sprocket detects the supply tape detects the supply tape. Featuring a feeder. The feeder according to claim 1, wherein
The feeder is characterized in that the controller makes the moving speed of the supply tape due to the rotation of the third sprocket smaller than the moving speed of the supply tape due to the rotation of the second sprocket. The feeder according to claim 1 or 2,
The third sprocket has a one-way clutch, and is rotated in the forward direction by being pulled by the supply tape that moves faster than the moving speed by the rotation of the third sprocket due to the movement of the supply tape by the rotation of the second sprocket. A feeder characterized by being able to. The feeder according to any one of claims 1 to 3,
The feeder is characterized in that the cover tape of the supply tape is cut open to expose the electronic component in the pocket of the supply tape. The feeder according to any one of claims 1 to 4,
The feeder is characterized in that an interval between the first sprocket and the second sprocket is smaller than an interval between the second sprocket and the third sprocket. The feeder according to any one of claims 1 to 5,
The feeder is characterized in that the shape of the third tooth is a round tooth shape or a shape with less catching than the second tooth. The feeder according to claim 6.
Wherein, when said tape pushing detection sensor detects the tip end of the supply tape, the first by controlling the sprocket drive motor, the stopping slow down the rotation of the second sprocket Characteristic feeder. The feeder according to claim 7,
The control unit controls the first sprocket drive motor by a reverse rotation operation with a minimum pitch feed until the tape indentation detection sensor stops detecting the supply tape after the slow-down of the rotation of the second sprocket is stopped. The feeder is characterized in that the second sprocket is rotated by a reverse rotation operation with a minimum pitch feed. The feeder according to claim 8,
The control unit controls the first sprocket drive motor from the position where the tape indentation detection sensor no longer detects the supply tape, rotates the second sprocket at a predetermined speed, and places the supply tape. A feeder characterized by moving the tip part at a high speed to a position immediately before reaching the cutter blade of the exposure mechanism. The feeder according to claim 9.
The control unit controls the first sprocket drive motor from a position immediately before reaching the cutter blade of the exposure mechanism, rotates the second sprocket at a predetermined ultra-low speed and ultra-low acceleration, and supplies the supply tape. A feeder characterized by moving a predetermined amount. The feeder according to claim 1 or 2,
The control unit detects that an instruction to start an unloading operation has been made from an operation panel that transmits an operation signal in response to an operation of an operator, and is provided in the downstream direction of the insertion port and the supply tape When the tape insertion detection sensor for detecting the presence or absence of the tape detects the presence of the supply tape, the feeder tape is moved in the reverse direction by the predetermined amount according to a preset reverse feed amount. The feeder according to claim 11.
A plurality of lanes in which a plurality of supply tapes are respectively sent in parallel, and the operation panel that transmits an operation signal corresponding to the operation of the operator to the control unit are provided, and the operation panel is operated by the operator, A selection button for selecting the lane, a return button for moving the supply tape in a reverse direction by a second predetermined amount, an unloading button for starting the unloading operation, and an operation of the operation panel. A feeder having two display units for 7-segment display. The feeder according to claim 12, wherein
The control unit moves the supply tape in the reverse direction when detecting that at least one button of the operation panel is pressed during the operation of moving the supply tape in the reverse direction. A feeder characterized by interrupting. The feeder according to claim 1 or 2,
The third sprocket has a one-way clutch and does not rotate in reverse.   The sprocket hole at the tip of the supply tape inserted from the insertion port is fitted to the teeth of the third sprocket, and the supply tape is rotated by the rotation of the third sprocket until it is fitted to the teeth of the second sprocket. When the tape push detection sensor provided downstream of the two sprockets detects the supply tape detects the supply tape, the rotation of the third sprocket is stopped, and the exposure mechanism exposes the electronic components. A feeder control method comprising: fitting the supply tape to the first sprocket after being performed. The feeder control method according to claim 15, wherein
An interval between the first sprocket and the second sprocket is made smaller than an interval between the second sprocket and the third sprocket, and the third sprocket is caught in a round tooth shape or a tooth shape of the second sprocket. With a tooth with less shape and a one-way clutch that does not reversely rotate,
The moving speed of the supply tape due to the rotation of the third sprocket is smaller than the moving speed of the supply tape due to the rotation of the second sprocket;
When the tape pressing detection sensor detects the tip of the supply tape, it controls a sprocket drive motor that drives the second sprocket to slow down the rotation of the second sprocket,
After stopping the slow-down of the rotation of the second sprocket, the sprocket drive motor is controlled by the reverse rotation operation by the minimum pitch feed until the tape push-in detection sensor stops detecting the supply tape, and the second sprocket is minimized. Rotate by reverse rotation by pitch feed,
From the position where the tape indentation detection sensor no longer detects the supply tape, the sprocket drive motor is controlled, the second sprocket is rotated at a predetermined speed, the supply tape is moved by a predetermined amount, and the exposure mechanism Moving the tip of the supply tape to a position just before reaching the cutter blade,
The sprocket drive motor is controlled from a position immediately before reaching the cutter blade of the exposure mechanism, the second sprocket is rotated at a predetermined ultra-low speed and an ultra-low acceleration, and the supply tape is moved by a predetermined amount. And a feeder control method. Tape chute to guide the movement of the supply tape,
A sprocket having teeth that fit into sprocket holes of the supply tape inserted from an insertion port, and moving the supply tape on the tape chute by rotation;
One sprocket drive motor for driving the one sprocket,
The other sprocket which is provided in the downstream direction of the one sprocket and has teeth which fit into the sprocket holes of the supply tape sent by the one sprocket, and which moves the supply tape on the tape chute by rotation;
An exposure mechanism for exposing an electronic component in a pocket covered with a cover tape of the supply tape sent by the other sprocket;
The other sprocket drive motor for driving the other sprocket, and
A controller for controlling the other sprocket drive motor and the one sprocket drive motor;
The control unit is provided in a downstream direction of the other sprocket and stops the one sprocket drive motor when a tape pressing detection sensor that detects the presence or absence of the supply tape detects the supply tape. And the feeder.

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