JP2012134218A - Component supply apparatus, electronic component mounting machine and component supply method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a component supply apparatus, an electronic component mounting machine and a component supply method that suppress an electronic component feed failure and suction failure when feeding the first electronic component.SOLUTION: A component supply apparatus 4 includes: a tape 40 having feed holes 400b and component storage sections 400a for storing electronic components P1; and a drive member 43 that has protrusions 430 inserted in the feed holes 400b with play L2 and that engages the protrusions 430 in the feed holes 400b and transmits driving force to feed the tape 40 forward until feeding the electronic components P1 to a component supply position B1. Before the first electronic component P1 is fed to the component supply position B1, the protrusions 430 are moved forward by a correction distance L3 equal to or longer than the play L2 to abut forward ends of the protrusions 430 on forward ends of the feed holes 400b.

Description

  The present invention relates to a component supply device that supplies an electronic component to be mounted on a board, an electronic component mounter including the component supply device, and a component supply method.

  As shown in Patent Document 1, a tape feeder is detachably disposed in an electronic component mounting machine. The tape feeder sends electronic components one by one to a predetermined component supply position. The electronic component sent to the component supply position is sucked by the suction nozzle and conveyed to the substrate. The conveyed electronic component is mounted on the predetermined coordinates of the substrate by the suction nozzle.

  The tape feeder includes a tape, a reel, and a sprocket. A large number of electronic components are enclosed in the tape at predetermined intervals along the longitudinal direction. In addition, a number of feed holes are formed in the tape at predetermined intervals along the longitudinal direction. The tape is wound around a reel. The tape is pulled out of the reel by a sprocket. That is, the electronic component is sent to the component supply position by the sprocket. Specifically, a large number of protrusions are arranged on the outer peripheral edge of the sprocket. With the protrusion engaged with the tape feed hole, the sprocket rotates intermittently to feed the electronic component to the component supply position.

JP 2009-295829 A

  However, in the case of feeding the first electronic component immediately after the tape feeder is mounted on the electronic component mounting machine, the electronic component may not be sent to the component supply position. FIG. 6A shows a top view of the vicinity of the component supply position in the initial stage of feeding the first electronic component. FIG. 6B shows a top view of the vicinity of the part supply position in the middle of the feeding operation. FIG. 6C shows a top view in the vicinity of the component supply position at the end of the feeding operation.

  As shown in FIGS. 6A to 6C, the tape feeder 100 is set with a component supply position B100. The tape feeder 100 includes a tape 102 and a sprocket. The tape 102 includes a large number of feed holes 103 and a large number of component accommodating portions 104. An electronic component 105 is accommodated in the component accommodating portion 104. A large number of protrusions 101 are arranged on the outer peripheral edge of the sprocket. The protrusion 101 is inserted into the feed hole 103. A play allowance L101 is secured between the projection 101 and the feed hole 103 to facilitate the insertion of the projection 101.

  When performing the feeding operation of the first electronic component, first, as shown in FIG. 6A, the position of the feeding hole 103 surrounded by a one-dot chain line is confirmed by a camera (not shown). Here, the relative positional relationship between the feed hole 103 and the component housing portion 104 is known. For this reason, the distance L100 from the component accommodating part 104 in which the 1st electronic component 105 was accommodated to component supply position B100 is known. Further, the movement distance (sprocket rotation angle) of the protrusion 101 corresponding to the distance L100 can be known.

  Next, as shown in FIG. 6B, the sprocket is rotated by an amount corresponding to the distance L100. Here, as shown in FIG. 6A, a play allowance L <b> 101 is secured between the protrusion 101 and the feed hole 103. For this reason, even if the sprocket is rotated, the tape 102 cannot be fed while the play allowance L101 is consumed. That is, the sprocket will idle for the play allowance L101. As shown in FIG. 6B, after the play allowance L101 is consumed and the forward end of the projection 101 and the forward end of the feed hole 103 come into contact with each other, as shown by the white arrow, the projection 101 Tape 102 is fed in the forward direction.

  However, of the preset distance L100, the play allowance L101 is consumed by the idle rotation of the sprocket. For this reason, the actual moving distance L102 of the tape 102 is L100-L101. Therefore, as shown in FIG. 6C, the component storage unit 104 in which the first electronic component 105 is stored stops at a position in front of the component supply position B100 by a play allowance L101. That is, the conveyance failure of the electronic component 105 occurs.

  Here, in the plurality of tape feeders 100, if the position of the play allowance L101 with respect to the protrusion 101 is always consistent, the play allowance L101 can be considered in advance, and the distance L100 can be set. For example, as shown in FIG. 6A, if the allowance L101 is always arranged on the forward direction side of the protrusion 101, the distance L100 may be set in consideration of the allowance L101.

  However, actually, the position of the play allowance L101 with respect to the protrusion 101 is not constant. For example, there is a case where the play allowance L101 is arranged on the reverse direction side of the protrusion 101, or the play allowance L101 is arranged separately on the forward direction side and the reverse direction side of the protrusion 101. For this reason, the distance L100 cannot be set in consideration of the play allowance L101 in advance. Therefore, the conveyance failure of the electronic component 105 occurs.

  Thus, in the case of the first electronic component feeding operation immediately after the tape feeder is mounted on the electronic component mounting machine, the electronic component 105 may not be fed to the component supply position B100. In this case, there is a possibility that the electronic component is not successfully attracted by the suction nozzle. That is, suction failure is likely to occur.

  The component supply apparatus, electronic component mounting machine, and component supply method of the present invention have been completed in view of the above problems. It is an object of the present invention to provide a component supply device, an electronic component mounting machine, and a component supply method that are less likely to cause poor conveyance and adsorption failure of electronic components even in the case of feeding the first electronic component. To do.

  (1) In order to solve the above-described problem, the component supply device of the present invention is arranged with a plurality of feed holes arranged at predetermined intervals along the longitudinal direction and at predetermined intervals along the longitudinal direction. A tape having a plurality of component housing parts for accommodating electronic components, and a protrusion inserted into the feed hole in a state where a predetermined allowance is secured, and the protrusion is engaged with the feed hole And a drive member that forwards the tape in a forward direction by transmitting a driving force and sequentially sends a plurality of the electronic components to a predetermined component supply position, and sends the first electronic component to the component supply position. Before starting, the projection is moved in the forward direction by a correction distance equal to or more than the allowance, and the forward end of the projection and the forward end of the feed hole are brought into contact with each other. .

  That is, the component supply apparatus of the present invention reduces the feeding error of the first electronic component by consuming play allowance in advance. According to the component supply position of the present invention, before the first electronic component is sent to the component supply position, the protrusion is moved in the forward direction by a correction distance equal to or more than the allowance. Here, the radial position of the protrusion in the feed hole is not constant. However, the maximum distance between the forward end of the protrusion and the forward end of the feed hole is equal to the allowance. For this reason, the forward end of the protrusion and the forward end of the feed hole can always be brought into contact with each other by moving the protrusion in the forward direction by a correction distance equal to or more than the allowance. That is, before starting to send the first electronic component to the component supply position, the state shown in FIG. 6B, that is, the state where the play allowance is consumed can be achieved. For this reason, the first electronic component can be reliably sent to the component supply position. In other words, there is no risk that the projection will run idle in the feed hole with play allowance and the electronic component will not reach the component supply position. This makes it difficult for electronic components to be conveyed poorly. In addition, since the electronic component can be reliably set at the component supply position, it becomes difficult for electronic components to be poorly conveyed.

  (2) Preferably, in the configuration of (1), before moving the protrusion in the forward direction by the correction distance, the protrusion is moved in the opposite direction opposite to the forward direction by the correction distance, It is preferable that the reverse direction end of the protrusion and the reverse direction end of the feed hole are in contact with each other.

  According to this configuration, the protrusion is moved first in the reverse direction and then in the forward direction by the correction distance. For this reason, the position of the protrusion is not moved after the movement and before the movement. Therefore, the forward end of the protrusion and the forward end of the feed hole can be brought into contact with each other, and the position of the protrusion can be prevented from being shifted in the forward direction by the work. Therefore, it is convenient when the component supply apparatus sets the movement distance of the protrusions based on the position of the protrusions before performing the work.

  (3) Preferably, in the configuration of the above (1) or (2), the drive member may be a sprocket that has the protrusion on the outer peripheral edge and rotates. According to this configuration, the forward end of the protrusion and the forward end of the feed hole can be brought into contact with each other before starting feeding the first electronic component to the component supply position. For this reason, idling of the sprocket with respect to the tape can be suppressed.

  (4) In order to solve the above problem, the electronic component mounting machine according to the present invention is described in any one of the above (1) to (3), and is necessary for sending the first electronic component to the component supply position. In addition, a movement distance of the protrusion is set, and a component supply device that abuts the forward end of the protrusion and the forward end of the feed hole before the movement distance is set is provided. It is characterized by.

  According to the electronic component mounting machine of the present invention, the feeding error of the first electronic component can be reduced by setting the movement distance of the protrusion of the driving member after the play allowance is consumed in advance. According to the electronic component mounting machine of the present invention, the protrusion is moved in the forward direction by a correction distance equal to or more than the allowance before the movement distance of the protrusion of the driving member is set. Here, the radial position of the protrusion in the feed hole is not constant. However, the maximum distance between the forward end of the protrusion and the forward end of the feed hole is equal to the allowance. For this reason, the forward end of the protrusion and the forward end of the feed hole can always be brought into contact with each other by moving the protrusion in the forward direction by a correction distance equal to or more than the allowance. The movement distance of the protrusion is set in this state. That is, the movement distance of the protrusion is set in the state shown in FIG. 6B, that is, in the state where the play allowance is consumed. For this reason, the first electronic component can be reliably sent to the component supply position. That is, it becomes difficult for electronic components to be poorly conveyed. In addition, since the electronic component can be reliably set at the component supply position, it becomes difficult for electronic components to be poorly conveyed.

  (5) Preferably, in the configuration of the above (4), an imaging device that images the feed hole is provided, and the moving distance is set from an image of the feed hole captured by the imaging device. Is good. According to this configuration, the movement distance can be set based on the known positional relationship between the feed hole and the component housing portion and the position of the feed hole imaged by the imaging device.

  (5-1) Preferably, in the configuration of the above (5), the feed hole imaged by the imaging device should have a configuration in which the protrusion is not inserted. According to this configuration, the contrast of the image of the feed hole is increased. For this reason, the setting precision of a movement distance becomes high.

  (6) In order to solve the above-described problem, the component supply method of the present invention includes a plurality of feed holes arranged at predetermined intervals along the longitudinal direction, and arranged at predetermined intervals along the longitudinal direction. A tape having a plurality of component housing parts for accommodating electronic components, and a protrusion inserted into the feed hole in a state where a predetermined allowance is secured, and the protrusion is engaged with the feed hole And a driving member that sequentially feeds the tape by transmitting a driving force and sequentially feeds the plurality of electronic components to a predetermined component feeding position. The protrusion is moved in the forward direction by the correction distance as described above, and the protrusion forward movement step of bringing the forward end of the protrusion into contact with the forward end of the feed hole, and the protrusion is moved, Component feeding step of sending the first electronic component to the component supply position , Characterized by having a.

  The component supply method of the present invention includes a projection forward movement step and a component feeding step. In the protrusion forward movement process, the protrusion is moved in the forward direction by a correction distance equal to or greater than the allowance, and the forward end of the protrusion and the forward end of the feed hole are brought into contact with each other. In the component feeding step, the protrusion is moved from the state where the allowance is already consumed, and the first electronic component is conveyed to the component supply position.

  According to the component supply method of the present invention, the forward end of the protrusion and the forward end of the feed hole can always be brought into contact with each other in the protrusion forward movement step. For this reason, in the component feeding process, the first electronic component can be reliably sent to the component supply position. Therefore, it is difficult for electronic components to be poorly conveyed. In addition, since the electronic component can be reliably set at the component supply position, it becomes difficult for electronic components to be poorly conveyed.

  (7) Preferably, in the configuration of (6) above, before the protrusion forward movement step, the protrusion is moved in the reverse direction opposite to the forward direction by the correction distance, and the reverse direction end of the protrusion is It is better to have a structure including a protrusion reverse movement process for contacting the opposite end of the feed hole.

  According to this configuration, the position of the protrusion is not moved before the protrusion reverse movement process and after the protrusion forward movement process. Therefore, the forward end of the protrusion and the forward end of the feed hole can be brought into contact with each other, and the position of the protrusion can be prevented from being shifted in the forward direction by the protrusion forward movement process. Therefore, it is convenient when the component supply device sets the movement distance of the protrusion, etc., based on the position of the protrusion before the protrusion reverse movement process.

  (8) Preferably, in the configuration of the above (6) or (7), the forward end of the projection and the forward end of the feed hole are in contact with each other after the projection forward step Thus, it is preferable to have a moving distance setting step for setting the moving distance of the protrusion, which is necessary for sending the first electronic component among the plurality of electronic components to the component supply position.

  According to this configuration, the movement distance of the protrusion is set while the play allowance is consumed. For this reason, the first electronic component can be reliably sent to the component supply position. That is, it becomes difficult for electronic components to be poorly conveyed. In addition, since the electronic component can be reliably set at the component supply position, it becomes difficult for electronic components to be poorly conveyed.

  According to the present invention, it is possible to provide a component supply device, an electronic component mounting machine, and a component supply method that are unlikely to cause poor electronic component conveyance and suction failure even in the case of feeding the first electronic component. .

It is a perspective view of the electronic component mounting machine which is one Embodiment of this invention. It is a right view of the same electronic component mounting machine. (A) is a top view of a tape feeder. (B) is the permeation | transmission right view of a tape feeder. (A) is an enlarged view in the frame IV of FIG. 3 (a). FIG. 4B is an enlarged view in the frame IV of FIG. 3A in the protrusion reverse movement process of the component supply method of the present embodiment. (C) is an enlarged view in the frame IV of FIG. 3 (a) in the protrusion forward movement process of the component supply method. It is a flowchart of the same component supply method. (A) is a top view of the vicinity of the initial component supply position in the conventional first electronic component feeding operation. FIG. 6B is a top view of the vicinity of a component supply position in the middle stage of the feeding operation. (C) is a top view of the vicinity of the component supply position at the end of the feeding operation.

  Hereinafter, embodiments of a component supply device, an electronic component mounting machine, and a component supply method according to the present invention will be described.

<Configuration of electronic component mounting machine>
First, the configuration of the electronic component mounting machine of this embodiment will be described. In the following drawings, the left side corresponds to the upstream side in the substrate transport direction. The right side corresponds to the downstream side in the substrate transport direction. The direction from the reel 41 toward the component supply position B1 corresponds to the “forward direction” of the present invention. On the contrary, the direction from the component supply position B1 toward the reel 41 corresponds to the “reverse direction” of the present invention.

  FIG. 1 is a perspective view of the electronic component mounting machine according to the present embodiment. FIG. 2 shows a right side view of the electronic component mounting machine. In FIG. 1, the housing of the module 3 is shown in a transparent manner. As shown in FIGS. 1 and 2, the electronic component mounting machine 1 includes a base 2, a module 3, a number of tape feeders 4, and a device pallet 5. The tape feeder 4 is included in the concept of the “component supply device” of the present invention.

[Base 2, Module 3]
The base 2 has a rectangular parallelepiped box shape. The base 2 is disposed on the floor F of the factory. The module 3 is detachably disposed on the upper surface of the base 2. The module 3 includes a substrate transfer device 30, an XY robot 31, a mounting head 32, a mark camera 33, a parts camera 34, a substrate lifting device 35, and a control device (not shown). The mark camera 33 is included in the concept of the “imaging device” of the present invention.

  The substrate transfer device 30 includes a pair of front and rear transfer units 303f and 303r. The front conveyance unit 303f includes a pair of front and rear conveyor belts. A substrate Bf is installed on the pair of front and rear conveyor belts. Similarly, the rear conveyance unit 303r includes a pair of front and rear conveyor belts. A substrate Br is installed on the pair of front and rear conveyor belts. The substrate Bf is independently transferred from the left side to the right side by the transfer unit 303f and the substrate Br is independently transferred by the transfer unit 303r. The conveyor belt has a function as a substrate transport body for transporting the substrate.

  The substrate lifting device 35 includes a pair of front and rear lifting portions 350f and 350r. Each of the pair of front and rear elevating parts 350f and 350r is movable in the vertical direction. The front raising / lowering part 350f is arrange | positioned under the conveyance part 303f. The rear raising / lowering part 350r is arrange | positioned under the conveyance part 303r. The substrates Bf and Br can be switched between a transport altitude (the altitude of the substrate Bf in FIG. 2) and a mounting altitude higher than the transport altitude (the altitude of the substrate Br in FIG. 2) by the elevating parts 350f and 350r. is there.

  The X direction corresponds to the left-right direction, the Y direction corresponds to the front-rear direction, and the Z direction corresponds to the up-down direction. The XY robot 31 includes a Y direction slider 310, an X direction slider 311, a pair of left and right Y direction guide rails 312, and a pair of upper and lower X direction guide rails 313.

  The pair of left and right Y-direction guide rails 312 are disposed on the upper surface of the housing internal space of the module 3. The Y-direction slider 310 is attached to a pair of left and right Y-direction guide rails 312 so as to be slidable in the front-rear direction. The pair of upper and lower X-direction guide rails 313 is disposed on the front surface of the Y-direction slider 310. The X-direction slider 311 is attached to a pair of upper and lower X-direction guide rails 313 so as to be slidable in the left-right direction.

  The mounting head 32 is attached to the X direction slider 311. For this reason, the mounting head 32 can be moved in the front-rear and left-right directions by the XY robot 31. Below the mounting head 32, the suction nozzle 320 is attached in a replaceable manner. The suction nozzle 320 is movable downward with respect to the mounting head 32. Therefore, the suction nozzle 320 can be moved in the front-rear, left-right, up-down directions by the XY robot 31 and the mounting head 32.

  The mark camera 33 is attached to the X-direction slider 311 together with the mounting head 32. The mark camera 33 can be moved in the front-rear and left-right directions by the XY robot 31. The mark camera 33 has a function as an imaging device that images the positioning marks for the substrates Bf, Br and electronic components. Further, the mark camera 33 has a function as an imaging device that images an electronic component sent out from a tape feeder 4 described later.

  The parts camera 34 is disposed in front of the conveyance unit 303f. The suction nozzle 320 (that is, the mounting head 32) that sucks the electronic component passes above the parts camera 34. The parts camera 34 has a function as an imaging device that images the suction state of the electronic component with respect to the suction nozzle 320. The control device can control the above-described substrate transport device 30, XY robot 31, mounting head 32, mark camera 33, parts camera 34, substrate lifting device, and tape feeder 4 described later in an integrated manner.

[Device pallet 5, tape feeder 4]
The device pallet 5 is attached to the front opening of the module 3. The device pallet 5 includes a large number of slots 51. A large number of tape feeders 4 are detachably attached to the slots 51, respectively. That is, the slot 51 has a function as a tape feeder attachment portion. When the tape feeder 4 is attached to the slot 51, the tape feeder 4 is simultaneously connected to the control device via a connector (not shown).

  FIG. 3A shows a top view of the tape feeder. FIG. 3B shows a transparent right side view of the tape feeder. As shown in FIGS. 3A and 3B, the tape feeder 4 includes a tape 40, a reel 41, a reel holder 42, a sprocket 43, and a main body frame 44.

  The main body frame 44 has a hollow thin plate shape. A component supply position B <b> 1 is disposed at the rear end of the upper surface of the main body frame 44. The sprocket 43 is accommodated in the main body frame 44. The sprocket 43 can be intermittently rotated by a motor (not shown) driven by a control device. A large number of protrusions 430 are arranged on the outer peripheral edge of the sprocket 43. As the sprocket 43 rotates, the protrusions 430 can protrude and appear above the main body frame 44 in order. The reel holder 42 is disposed behind the main body frame 44. The reel 41 is accommodated in the reel holder 42 so as to be removable.

  The tape 40 is wound around the shaft portion 410 of the reel 41. The tape 40 is drawn backward from the top of the reel 41. The drawn tape 40 extends in the front-rear direction along the upper surface of the main body frame 44. The tape 40 includes a carrier tape 400 and a cover tape 401.

  FIG. 4A shows an enlarged view in the frame IV of FIG. As shown in FIG. 4A, the carrier tape 400 includes a large number of component accommodating portions 400a and a large number of feed holes 400b. The large number of component accommodating portions 400 a are each recessed in the upper surface of the carrier tape 400. The large number of component housing portions 400 a are arranged along the longitudinal direction of the carrier tape 400 at a predetermined interval. A large number of component accommodating portions 400a each accommodate an electronic component P1. Each of the many feed holes 400b penetrates the carrier tape 400 in the vertical direction. The large number of feed holes 400b are spaced along the longitudinal direction of the carrier tape 400 at a predetermined interval. The multiple feed holes 400b are arranged at one end in the short direction of the carrier tape 400 with respect to the multiple component housing portions 400a. One feed hole 400b is arranged every other component housing portion 400a. The control device stores a relative positional relationship between the feed hole 400b and the component housing portion 400a. Above the sprocket 43, a protrusion 430 is inserted into the feed hole 400b. The feed hole 400b, that is, the tape 40 is fed by the protrusion 430, that is, the sprocket 43, in the direction from the reel 41 toward the component supply position B1 or from the component supply position B1 toward the reel 41.

  As shown in FIGS. 3A and 3B, the cover tape 401 is laminated above the carrier tape 400 (outside in the radial direction when wound on the reel 41). The cover tape 401 seals a number of component housing portions 400a from above.

<Electronic component mounting machine movement>
Next, the movement of the electronic component mounting machine of this embodiment during board production will be briefly described. As shown in FIGS. 3A, 3B, and 4A, the tape 40 containing the electronic component P1 is rearward from the front at a predetermined pitch by the sprocket 43 that is intermittently driven by the control device. Sent to. The cover tape 401 of the tape 40 is peeled from the carrier tape 400 before reaching the sprocket 43. For this reason, only the carrier tape 400 reaches the component supply position B1. At the component supply position B1, the electronic component P1 in the component housing portion 400a can be taken out from above.

  As shown in FIG. 2, the suction nozzle 320 can be moved in the front-rear, left-right, up-down directions by the XY robot 31 and the mounting head 32. As shown by a dotted line in FIG. 2, the electronic component P <b> 1 at the component supply position B <b> 1 is sucked by the suction nozzle 320. The sucked electronic component P1 is conveyed to the substrate Br (or the substrate Bf) via the part camera 34 above. The conveyed electronic component P1 is mounted at a predetermined coordinate B2 of the substrate Br by the suction nozzle 320.

  Thus, the electronic component P1 is conveyed from the reel 41 of the tape feeder 4 to the component supply position B1 by the sprocket 43. Further, the suction nozzle 320 conveys the component from the component supply position B1 to a predetermined coordinate B2 of the substrate Br.

<Parts supply method>
Next, the component supply method of this embodiment is demonstrated. The component supply method of this embodiment includes a protrusion reverse movement process, a protrusion forward movement process, a movement distance setting process, and a component feeding process. FIG. 4B shows an enlarged view in the frame IV of FIG. 3A in the protrusion reverse movement process of the component supply method of the present embodiment. FIG. 4 (c) shows an enlarged view in the frame IV of FIG. 3 (a) in the projection forward movement process of the component supply method. FIG. 4D shows an enlarged view in the frame IV of FIG. 3A in the component feeding process of the component supply method. FIG. 5 shows a flowchart of the component supply method.

  As shown in FIG. 5, the component supply method of the present embodiment is executed immediately after the tape feeder 4 is mounted on the electronic component mounting machine 1. First, the electronic component mounting machine 1 is turned on (S1). Next, as shown in FIG. 2, the tape feeder 4 is mounted in the slot 51 of the device pallet 5 of the electronic component mounting machine 1 (S2). Then, power is turned on to the tape feeder 4 (S3). Subsequently, in order to recognize the mounted tape feeder 4, the control device of the electronic component mounting machine 1 starts communication with the tape feeder 4 (S4).

  Then, a protrusion reverse movement process is performed (S5). As shown in FIG. 4A, a play allowance L2 is secured between the protrusion 430 and the feed hole 400b in order to facilitate the insertion of the protrusion 430. FIG. 4A shows a state where the allowance L2 is biased toward the component supply position B1 side of the protrusion 430 (a state where the feeding error of the first electronic component P1 is maximized). The allowance L2 may be biased toward the reel 41 side of the protrusion 430. Alternatively, the allowance L2 may be divided into the protrusion 430 on the component supply position B1 side and the reel 41 side. In this step, the sprocket 43 is reversed in the counterclockwise direction in FIG. Then, as shown in FIG. 4B, the protrusion 430 is moved from the component supply position B1 side to the reel 41 side by the correction distance L3. Here, the total length of the correction distance L3 in the direction of the component supply position B1 to the reel 41 is equal to or greater than the total length of the allowance L2 in the direction of the component supply position B1 to the reel 41. For this reason, even if the allowance L2 is present at any position of the protrusion 430 in the component supply position B1 to the reel 41 direction, the reel 41 direction end (reverse direction end) of the protrusion 430 and the feed hole 400b. It always comes into contact with the reel 41 direction end.

  Then, a protrusion forward movement process is performed (S6). In this step, the sprocket 43 is rotated forward in the clockwise direction in FIG. Then, as shown in FIG. 4C, the protrusion 430 is moved from the reel 41 side to the component supply position B1 side by the correction distance L3. Here, the movement direction of the protrusion 430 in the protrusion reverse movement process and the movement direction of the protrusion 430 in this process are opposite to each other. On the other hand, the movement distance of the protrusion 430 in the protrusion reverse movement process and the movement distance of the protrusion 430 in this process are the same. For this reason, as can be seen by comparing FIG. 4A and FIG. 4C, the position of the protrusion 430 after this process coincides with the position of the protrusion 430 before the protrusion reverse movement process.

  Then, a movement distance setting process is performed. In this step, first, as shown in FIG. 5, in response to communication (S4) from the control device to the tape feeder 4, the tape feeder 4 transmits recognition information to the control device (S7). Subsequently, the control device drives the mark camera 33 shown in FIG. 2, and confirms the position of the feed hole 400b surrounded by the one-dot chain line shown in FIG. In order to increase the contrast of the image, the mark camera 33 images the feed hole 400b in which the protrusion 430 is not inserted among the plurality of feed holes 400b. Here, the relative positional relationship between the feed hole 400b and the component housing portion 400a is stored in the control device. Based on the position of the feed hole 400b confirmed by the mark camera 33 and the relative positional relationship between the feed hole 400b stored in the mark camera 33 and the component housing portion 400a, the control device is shown in FIG. In this way, the distance L1 from the component housing part 400a in which the first electronic component P1 is housed to the component supply position B1 is calculated. Further, as shown in FIG. 5, the control device calculates the movement distance of the protrusion 430 necessary for feeding the tape 40 by the distance L1 (S8).

  Finally, a component feeding process is performed. In this step, first, as shown in FIG. 5, the control device issues an instruction to feed the electronic component P1 to the tape feeder 4 (S9). Subsequently, according to the feed instruction, the sprocket 43 shown in FIG. 3 is rotated forward to move the protrusion 430 by the calculated movement distance. Then, as shown in FIG. 4D, the component housing portion 400a in which the first electronic component P1 is housed is sent to the component supply position B1. The tape feeder 4 sequentially supplies the electronic component P1 to the component supply position B1. As shown in FIG. 2, the electronic component P1 at the component supply position B1 is sequentially mounted on the predetermined coordinates B2 of the substrates Bf and Br by the suction nozzle 320.

<Effect>
Next, functions and effects of the tape feeder 4, the electronic component mounter 1, and the component supply method of this embodiment will be described. According to the tape feeder 4, the electronic component mounting machine 1, and the component supply method of the present embodiment, as shown in FIGS. 4A to 4D, the movement of the protrusion 430 of the sprocket 43 after consuming the play allowance L 2 in advance. By setting the distance, the feeding error of the first electronic component P1 can be reduced. That is, a protrusion reverse movement process and a protrusion forward movement process are performed before the movement distance setting process. The radial position of the protrusion 430 in the feed hole 400b is not constant. For example, as shown in FIG. 4A, when the allowance L2 is biased toward the component supply position B1 side of the protrusion 430, when the allowance L2 is biased toward the reel 41 side of the protrusion 430, In some cases, L2 is divided into the component supply position B1 side of the protrusion 430 and the reel 41 side. However, the maximum distance between the end of the projection 430 in the component supply position B1 direction (forward direction end) and the end of the feed hole 400b in the component supply position B1 direction is equal to the allowance L2. For this reason, as shown in FIG. 4C, by moving the protrusion 430 toward the component supply position B1 by a correction distance L3 equal to or greater than the allowance L2, the end of the protrusion 430 in the component supply position B1 direction and the feed hole 400b The component supply position B1 direction end can always be brought into contact with each other. The movement distance of the protrusion 430 is set in this state. That is, the movement distance of the protrusion 430 is set in a state where the play allowance L2 is consumed. For this reason, the first electronic component P1 can be reliably sent to the component supply position B1. That is, it becomes difficult for the conveyance failure of the electronic component P1 to occur. Moreover, since the electronic component P1 can be reliably set at the component supply position B1, it is difficult for the electronic component P1 to be poorly conveyed.

  Moreover, according to the tape feeder 4, the electronic component mounting machine 1, and the component supply method of this embodiment, a protrusion reverse movement process is performed before a protrusion forward movement process. Therefore, the projection 430 is moved first to the reel 41 side and then to the component supply position B1 side by the same correction distance L3. Therefore, the position of the protrusion 430 is substantially unmoved between the state before the protrusion reverse movement process shown in FIG. 4A and the state after the protrusion forward movement process shown in FIG. Therefore, it is convenient when the control device has a program for setting the movement distance of the protrusion 430 based on the position of the protrusion 430 before the protrusion reverse movement step.

  Moreover, according to the tape feeder 4, the electronic component mounting machine 1, and the component supply method of this embodiment, it is possible to change the operation of the existing tape feeder 4 and the electronic component mounting machine 1 without changing the operation of a special device. The feeding error of the electronic component P1 can be reduced. That is, the existing tape feeder 4 and electronic component mounting machine 1 can be used. For this reason, versatility is high.

<Others>
The embodiments of the component supply device, the electronic component mounter, and the component supply method of the present invention have been described above. However, the embodiment is not particularly limited to the above embodiment. Various modifications and improvements that can be made by those skilled in the art are also possible.

  For example, in the above-described embodiment, the protrusion reverse movement process is executed before the protrusion forward movement process, but the protrusion reverse movement process may be unnecessary. For example, when the control device has a program for setting the movement distance of the protrusion 430 based on the position of the protrusion 430 after the protrusion forward movement process, the protrusion reverse movement process is not necessary. Moreover, in the said embodiment, although the sprocket 43 was used as a drive member, you may use a gear etc.

  Further, in the component supply method shown in FIGS. 4A to 4D, it is preferable to perform the portion for sending the first electronic component P1 to the component supply position B1 for each tape feeder 4. If it carries out like this, it can suppress that an excessive load is added to a control apparatus. That is, the control device can be protected.

1: electronic component mounting machine, 2: base, 3: module, 4: tape feeder (component supply device), 5: device pallet.
30: Substrate transport device, 31: XY robot, 32: Mounting head, 33: Mark camera (imaging device), 34: Parts camera, 35: Substrate lifting device, 40: Tape, 41: Reel, 42: Reel holder, 43 : Sprocket, 44: Main body frame, 51: Slot.
303f: Conveying unit, 303r: Conveying unit, 310: Y direction slider, 311: X direction slider, 312: Y direction guide rail, 313: X direction guide rail, 320: Suction nozzle, 350f: Elevating unit, 350r: Elevating unit , 400: carrier tape, 400a: component housing part, 400b: feed hole, 401: cover tape, 410: shaft part, 430: protrusion.
B1: component supply position, B2: coordinates, Bf: substrate, Br: substrate, F: floor, L1: distance, L2: allowance, L3: correction distance, P1: electronic component.

Claims (8)

A tape having a plurality of feed holes arranged at predetermined intervals along the longitudinal direction, and a plurality of component accommodating portions arranged at predetermined intervals along the longitudinal direction and each accommodating electronic components. ,
A protrusion inserted into the feed hole in a state where a predetermined allowance is secured, and the tape is forwardly fed by engaging the protrusion with the feed hole and transmitting a driving force; A drive member for sequentially sending electronic components to a predetermined component supply position;
With
Before starting feeding the first electronic component to the component supply position, the projection is moved in the forward direction by a correction distance equal to or more than the allowance, and the forward end of the projection and the forward direction of the feed hole are moved. A component supply device that abuts a direction end.   Before moving the protrusion in the forward direction by the correction distance, the protrusion is moved in the reverse direction opposite to the forward direction by the correction distance, and the reverse end of the protrusion and the reverse of the feed hole. The component supply device according to claim 1, wherein the direction end is brought into contact.   The component supply device according to claim 1, wherein the driving member is a sprocket that has the protrusion on an outer peripheral edge and rotates.   The movement distance of the protrusion required to send the first electronic component to the component supply position is set according to any one of claims 1 to 3, and before the movement distance is set. An electronic component mounting machine comprising a component supply device that abuts the forward direction end of the protrusion and the forward direction end of the feed hole. Comprising an imaging device for imaging the feed hole;
The electronic component mounting machine according to claim 4, wherein the moving distance is set from an image of the feed hole imaged by the imaging device. A tape having a plurality of feed holes arranged at predetermined intervals along the longitudinal direction, and a plurality of component accommodating portions arranged at predetermined intervals along the longitudinal direction and each accommodating electronic components. ,
A protrusion inserted into the feed hole in a state where a predetermined allowance is secured, and the tape is forwardly fed by engaging the protrusion with the feed hole and transmitting a driving force; A drive member for sequentially sending electronic components to a predetermined component supply position;
A component supply method for a component supply apparatus comprising:
A protrusion forward step of moving the protrusion in the forward direction by a correction distance equal to or greater than the allowance, and abutting the forward direction end of the protrusion and the forward end of the feed hole;
A component feeding step of moving the protrusion and sending the first electronic component to the component supply position;
A component supply method comprising:   Before the protrusion forward movement step, the protrusion is moved in the reverse direction opposite to the forward direction by the correction distance, and the reverse direction end of the protrusion and the reverse direction end of the feed hole are brought into contact with each other. The component supply method according to claim 6, further comprising a protrusion reverse movement step.   After the protrusion forward movement step, the first electronic component among the plurality of electronic components is in the state in which the forward end of the protrusion is in contact with the forward end of the feed hole. The component supply method according to claim 6, further comprising a movement distance setting step of setting a movement distance of the protrusion necessary for sending to the component supply position.

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