JP5360138B2 - Component mounting method - Google Patents

Abstract

The objective of the utility model is to provide belt feeder that can avoid the condition of feeding deviation of parts on part off-take location caused by the movement of belt component relative to stopped gear teeth. Tension applying mechanism (35) for applying tension to top belt (24) comprises: arm component (41), which is installed on feeder main body (31) and can swing freely; abutting roller (43), which is installed at the front end part of the arm component (41) and is abutted against the top belt (24); and spring component (44), the two ends of which are installed on the arm component (41) and the feeder main body (31) to apply force to the arm component (41) along the swinging direction and pushing the abutting roller (43) against the top belt, wherein the spring component (44) is installed on "first spring component installation location" and "second spring component installation location" corresponding to the outlet (first top belt outlet (33a) and second belt outlet (33b)) of the top belt (24) of the belt pressing component (33).

Description

The present invention relates to component mounting method according to the component mounting apparatus equipped with te Pufida.

  In a component mounting apparatus that mounts components (electronic components) on a substrate, the substrate positioning unit that positions the substrate, the component supply unit that supplies the component, and the component supplied by the component supply unit are picked up by the suction nozzle and positioned on the substrate A mounting head for mounting on the substrate positioned by the unit. Here, the tape feeder known as a kind of parts feeder constituting the parts supply unit intermittently feeds the tape member in which the parts are stored, and sends the parts stored in the tape member to a predetermined part take-out position at regular time intervals. Supply.

  In such a tape feeder, the tape member is removed from the base tape by the base tape storing the components in each of the pocket-shaped component storage portions and the components attached to the base tape and stored in the component storage portions. It is made of a top tape that prevents the tape from being fed, and is supplied while being wound around a reel. The feeder main body to be mounted on the component mounting apparatus includes a tape passage and a sprocket that are passages of the tape member fed from the reel, and the tape member that extends the teeth provided on the outer periphery of the sprocket through the tape passage. The tape member is intermittently fed by being inserted into the feed hole and intermittently rotating the sprocket, and the component storage portion of the base tape is positioned at the component take-out position set on the feeder body at regular time intervals. The tape member that is fed out from the reel is pressed from above by the tape press provided on the feeder body until the upper part of the tape member reaches the parts removal position, and the top tape peeled off from the base tape is used as the tape press. After being drawn upward from the provided top tape outlet, it is pulled and collected by the top tape collecting mechanism.

  Thus, the top tape drawn out from the top tape outlet of the tape retainer is pulled and collected by the top tape collecting mechanism, but if the top tape is loose at this time, the top tape cannot be collected smoothly. For this reason, an appropriate tension is applied to the top tape drawn from the top tape outlet by the tension applying mechanism. The tension applying mechanism includes an arm member swingably provided on the feeder main body, an abutting portion provided at a tip portion of the arm member that contacts the top tape, and both ends attached to the arm member and the feeder main body. The spring member presses the contact portion against the top tape with an urging force corresponding to a length (spring length) determined by a spring mounting position with respect to the arm member and the feeder body. To apply tension to the top tape (see, for example, Patent Document 1).

  Here, the tension applied to the top tape by the tension applying mechanism is a force that pushes the base tape through the top tape in the feeding direction of the tape member, but since the tape member is pressed by the tape press as described above, While the sprocket is stopped (between intermittent sprocket operations), the tape member moves in the tape member feed direction by the pushing force (this movement is within the gap between the tape member feed hole and the sprocket teeth). The movement is blocked by the friction force generated between the top tape and the tape press. For this reason, in the tape feeder, the position of the component storage portion of the base tape can be controlled by the position of the sprocket teeth (that is, the rotational position of the sprocket), and the component can be accurately supplied to the component removal position.

  By the way, in the tape feeder, in addition to the first top tape outlet provided adjacent to the component extraction position as the top tape extraction port in the tape press, the tape member feeding direction and Some have a second top tape outlet provided at the opposite position. In such a tape feeder, the top tape is normally pulled out from the first top tape outlet close to the component supply position, but the components from the component storage section are affected by the influence of static electricity generated when the top tape is peeled off from the base tape. In the case of using a tape member that may hinder normal take-out, it is possible to reduce the influence of static electricity by pulling out the top tape from the second top tape lead-out port away from the part take-out position. .

  In such a tape feeder, the width direction dimension of the second top tape outlet (the dimension in the thickness direction of the top tape to be pulled out) is set smaller than the width direction dimension of the first top tape outlet. Yes. This is because if the dimension in the width direction of the second top tape outlet is increased, there is a risk that the component may fall off from the component storage portion immediately after the top tape is peeled off. If the width dimension of the mouth is set to be smaller than the width dimension of the first top tape outlet, the thickness of the top tape (in addition to the thickness of the top tape itself, the tape member is spliced by the splicing tape). Depending on the thickness of the top tape itself, the thickness of the splicing tape plus the thickness of the splicing tape may pass through the second top tape outlet even though it can easily pass through the first top tape outlet. Since it may be difficult (or cannot pass), the arm portion of the spring member constituting the tension applying mechanism and Mounting position for the feeder body, it is set at a position where the top tape is the length of the biasing force which can provide the top tape only tension can easily pass the second top tape outlet is exhibited.

JP 2005-175045 A

  However, as described above, the biasing force of the spring member of the tension applying mechanism is set to a size that allows the top tape to apply a tension enough to allow the top tape to easily pass through the second top tape outlet. When the top tape passes through the first top tape outlet, the top tape is pulled upward with an excessive force. In this case, the tension applied to the top tape by the tension applying mechanism exceeds the frictional force generated between the top tape and the tape presser, and the tension applied to the top tape causes the tape member to be stopped against the sprocket teeth. Proceeding in the feeding direction of the tape member, the feeding hole of the tape member is in a normal position (the front surface of the tooth at the highest position among the many teeth of the sprocket and the leading edge of the feeding hole of the tape member are in contact with each other. The position of the component storage unit cannot be controlled by the rotational position of the sprocket by moving from the position), and there has been a case where a component supply shift occurs in which the component is supplied at a position shifted from the component take-out position.

The present invention provides a parts products implementation that can be prevented a situation in which the tape member of the tape feeder supplying displacement of parts in the take-out parts accidentally progress for the sprocket teeth in the stop position is generated The purpose is to do.

The component mounting method according to claim 1 , comprising: a substrate positioning unit that positions the substrate; a tape feeder that supplies the component; and a mounting head that picks up the component supplied by the tape feeder using a suction nozzle. The feeder is composed of a base tape storing the components in the component storage section, and a top tape that is attached to the base tape and prevents the components stored in the component storage section from falling off the base tape, and is wound around the reel. A tape member supplied in a state, a feeder main body having a tape passage which is a passage of the tape member fed out from the reel, and a tape member attached to the feeder main body and having teeth provided on the outer periphery thereof fed out from the reel The tape member is intermittently fed in the tape passage by being inserted into the feed hole and rotating intermittently. A sprocket that positions the component storage part of the tape tape at a component take-out position set on the feeder body at regular intervals, and a tape member that is provided on the feeder body and that extends from the reel until it reaches the component take-out position. From the first top tape outlet and the first top tape outlet, the upper surface of the top tape, which is provided adjacent to the part take-out position and is peeled off from the base tape, is pressed from above. The second top has a small dimension in the thickness direction of the top tape, and is provided at a position on the opposite side of the feeding direction of the tape member from the component take-out position, and the top tape peeled off from the base tape is drawn upward. Tape press with tape outlet and first top tape pull of tape press A top tape recovery mechanism that pulls and recovers the top tape drawn from the opening or the second top tape outlet, and a top tape recovery mechanism that is drawn from the first top tape outlet or the second top tape outlet. A tension applying mechanism for applying tension to the top tape pulled by the arm, and the tension applying mechanism includes an arm member swingably provided on the feeder main body, and a first top provided on the tip of the arm member. The abutting part that abuts the top tape drawn out from the tape outlet or the second top tape outlet, and both end parts are attached to the arm member and the feeder body to urge the arm member in its swinging direction. A spring member that applies tension to the top tape by pressing the contact part against the top tape. And mounting the spring member at a first spring member mounting position for applying a first biasing force to the arm member when the top tape is pulled out from the second top tape outlet. A step of attaching the spring member to a second spring member attachment position for applying a second biasing force smaller than the first biasing force to the arm member when the top tape is pulled out from the first top tape outlet; A step of positioning the substrate by the positioning unit, a step of picking up the component by the suction nozzle from the component storage portion of the base tape positioned at the component take-out position by the tape feeder, and a component picked up by the suction nozzle by the substrate positioning unit Attaching to the substrate.

  In the present invention, the spring of the tension applying mechanism according to the width direction dimension (the dimension in the thickness direction of the top tape) of the tape presser and the top tape outlet (the first top tape outlet and the second top tape outlet). Since the tension applied to the top tape is changed by changing the attachment position of the member, the tape member does not advance against the teeth of the stopped sprocket, thereby removing the parts. Occurrence of supply deviation of components at the position can be prevented.

The block diagram of the component mounting apparatus in one embodiment of this invention The perspective view of the tape member with which the tape feeder which comprises the component mounting apparatus in one embodiment of this invention is provided The perspective view of the tape feeder in one embodiment of this invention The side view of the tape feeder in one embodiment of this invention (A) (b) The fragmentary top view of the tape member with which the tape feeder in one embodiment of this invention is provided (A) (b) The partial perspective view of the tape feeder in one embodiment of this invention (A) (b) Operation | movement explanatory drawing of the tension | tensile_strength provision mechanism with which the tape feeder in one embodiment of this invention is provided. (A) (b) The side view of the tension | tensile_strength provision mechanism with which the tape feeder in one embodiment of this invention is provided. The flowchart which shows the execution procedure of the component mounting method using the component mounting apparatus in one embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a component mounting apparatus 1 carries in and positions a substrate 2 sent from an upstream process device (not shown) (for example, a solder printer or other component mounting apparatus), and onto the positioned electrode portion 3 of the substrate 2. A series of operations including the mounting of the component (electronic component) 4 and the unloading of the substrate 2 on which the component 4 is mounted to an apparatus on the downstream process side (for example, another component mounting apparatus, an inspection machine, a reflow furnace, etc.) is repeatedly executed. Device.

  In FIG. 1, a component mounting apparatus 1 is provided on a base (not shown) and transports a substrate 2 and positions a substrate at a predetermined work position (the position shown in FIG. 1). A plurality of tape feeders 13 that are mounted on a feeder base 12 provided on a table and supply components 4, an orthogonal coordinate type head moving robot 14 provided on a base, and a head moving robot 14 are moved in a horizontal plane. The mounting head 16 picks up the component 4 supplied by the tape feeder 13 by the suction nozzle 15 that can be moved up and down and rotated around the vertical axis, and the substrate that is provided in the mounting head 16 and has the imaging field of view downward. A camera 17 and a component camera 18 provided on the base and having an imaging field of view facing upward are provided by a control device 19. Operation control is performed.

  In FIG. 1, the substrate transport path 11 is composed of a pair of belt conveyors extending in the horizontal direction, operates under the control of the control device 19, and supports both ends of the substrate 2 from below. Transport.

  Each tape feeder 13 operates under the control of the control device 19, performs the feeding operation of the tape member 20 (FIG. 2) in which the component 4 is stored, and supplies the component 4 to the component take-out position 13 p (FIG. 1).

  In FIG. 2, the tape member 20 has a large number of feed holes 21 that are arranged at regular intervals in the longitudinal direction and a large number of component storage portions 22 that are also arranged at regular intervals in the longitudinal direction. A base tape 23 in which the component 4 is stored in the storage portion 22 and a top tape 24 that prevents the component 4 attached to the base tape 23 and stored in the component storage portion 22 from dropping from the base tape 23 are included. The tape member 20 is supplied while being wound around the reel 25.

  3 and 4, the tape feeder 13 includes a feeder body 31, a sprocket 32, a tape press 33, a top tape recovery mechanism 34, and a tension applying mechanism 35.

  1 and 4, the feeder main body 31 is detachably attached to the feeder base 12. Hereinafter, the side facing the substrate transport path 11 in the state of being attached to the feeder base 12 is referred to as the front side of the tape feeder 13 and the opposite side is referred to as the rear side.

  In FIG. 4, a reel 25 around which a tape member 20 is wound is held at a rear position outside the feeder main body 31, and the tape member 20 fed out from the reel 25 is a tape passage 31 a (provided inside the feeder main body 31). (See also FIG. 3). That is, the feeder main body 31 has a tape passage 31 a that is a passage of the tape member 20 fed out from the reel 25.

  3 and 4, the sprocket 32 is attached to the front end of the feeder main body 31 so as to be rotatable with respect to the feeder main body 31, and a large number of teeth 32a arranged at equal intervals are provided on the outer periphery thereof. . The sprocket 32 is a front edge of one feed hole 21 of the tape member 20 extending in the tape passage 31a of the feeder body 31 from the front surface of the tooth 32a at the highest position among the many teeth 32a provided on the outer periphery. (Fig. 5 (a). In the figure, the tooth 32a located at the center in the left-right direction shows the tooth 32a at the highest position) and rotates intermittently by a fixed amount. Perform the operation continuously. As a result, the tape member 20 is pulled forward by the sprocket 32 to the front of the feeder main body 31 and advances intermittently, and the component storage portions 22 provided on the base tape 23 are successively sent to the component removal position 13p.

  That is, in the present embodiment, the sprocket 32 is attached to the feeder main body 31, and the teeth 32a provided on the outer periphery are inserted into the feed holes 21 of the tape member 20 fed from the reel 25 to rotate intermittently. The tape member 20 is intermittently fed in the tape passage 31a, and the component storage portion 22 of the base tape 23 is positioned at a component take-out position 13p set on the feeder body 31 at regular time intervals.

  As described above, when the sprocket 32 rotates, the front surface of the teeth 32a of the sprocket 32 (specifically, the tooth 32a at the highest position among the numerous teeth 32a of the sprocket 32) is the feed hole of the tape member 20. The tape member 20 is pulled while being in contact with the front edge of the control unit 21, but the controller 19 is not only in the state of pulling the tape member 20 but also when the tape member 20 is stopped (the rotation operation of the sprocket 32). By controlling the rotation angle of the sprocket 32 on the premise that it is maintained even when the machine is stopped, the component storage unit 22 (that is, the component 4) is positioned at the component extraction position 13p of the feeder body 31. ing.

  2 and 3, the tape presser 33 is composed of a long member having a “U” cross section. The tape retainer 33 is provided in a state of extending in the front-rear direction along the feeder body 31 behind the parts take-out position 13p of the feeder body 31, and is from being fed from the reel 25 until reaching the parts take-out position 13p. The upper surface of a part of the tape member 20 (a part of the tape member 20 extending in the horizontal direction on the tape passage 31 a) is pressed from above, and the tape member 20 is slidably held between the feeder main body 31.

  In FIG. 3, in addition to the component take-out opening 33p formed so as to be located immediately above the component take-out position 13p at the front portion of the tape press 33, the top tape 24 peeled off from the base tape 23 is drawn upward. A first top tape outlet 33a and a second top tape outlet 33b are provided. The first top tape lead-out port 33a is provided behind the component pick-up opening 33p and adjacent to the component pick-up opening 33p, and the second top tape lead-out port 33b is behind the first top tape lead-out port 33a. That is, it is provided at a position opposite to the feeding direction of the tape member 20 with respect to the component picking position 13p (and therefore at a position away from the component picking position 13p).

  Here, the second top tape outlet 33b may prevent normal removal of the component 4 from the component storage unit 22 due to the influence of static electricity generated when the top tape 24 is peeled off from the base tape 23. Although used when a certain tape member 20 is used, in order to prevent the component 4 from falling off from the component storage portion 22 immediately after the top tape 24 is peeled off, the second top tape outlet 33b The width-direction dimension (the dimension in the thickness direction of the top tape 24 to be pulled out) is smaller than the width-direction dimension of the first top tape outlet 33a.

  The top tape 24 peeled off from the base tape 23 may interfere with normal removal of the component 4 from the component storage unit 22 due to the influence of static electricity generated when the top tape 24 is peeled off from the base tape 23. When the tape member 20 having no tape is used, the tape member 33 is pulled upward from the first top tape outlet 33a of the tape press 33 (FIG. 6A), and the top tape 24 is peeled off from the base tape 23. When the tape member 20 is used which may hinder the normal removal of the component 4 from the component storage unit 22 due to the influence of the generated static electricity, the tape member 33 is moved upward from the second top tape outlet 33b. (FIG. 6B). Then, the top tape 24 drawn out from the first top tape outlet 33a or the second top tape outlet 33b is applied to the top tape recovery mechanism 34 in a state where an appropriate tension is applied by a tension applying mechanism 35 described later. Sent.

  That is, in the present embodiment, the tape presser 33 is provided in the feeder main body 31 and presses a part of the upper surface of the tape member 20 from the time it is fed from the reel 25 until it reaches the component removal position 13p, from above, The top tape 24 provided adjacent to the component take-out position 13p and peeled off from the base tape 23 is drawn out upward. The first top tape outlet 33a and the top tape 24 more than the first top tape outlet 33a. A second top having a small dimension in the thickness direction and provided at a position opposite to the feeding direction of the tape member 20 relative to the component take-out position 13p and from which the top tape 24 peeled off from the base tape 23 is drawn upward. It has a tape outlet 33b.

  In FIG. 3, a viewing window 33n is provided in a front portion of the tape press 33 (a portion in front of the first top tape outlet 33a), and an operator (not shown) of the component mounting apparatus 1 The positional relationship between the feed hole 21 provided in the tape member 20 and the teeth 32a of the sprocket 32 can be visually confirmed through the viewing window 33n.

  In FIG. 2, the tape presser 33 has a rear end portion pivotally connected to the feeder main body 31 by a pivoting member 33q, and a set position (indicated by a solid line in FIG. 3) extending in the front-rear direction (horizontal direction) along the feeder main body 31. And a non-set position (refer to the tape press 33 shown by a one-dot chain line in FIG. 3) that is flipped upward from the set position around the pivot member 33q. Yes. The operation of pulling the top tape 24 peeled off from the base tape 23 from the first top tape outlet 33a or the second top tape outlet 33b of the tape holder 33 to the upper surface side of the tape holder 33 is to move the tape holder 33 upward. It is performed in a state where it is in a non-set position that is flipped up.

  In FIG. 4, the top tape collecting mechanism 34 drives a pair of collecting rollers 34 a that are rotatably attached to the feeder main body 31 and are in contact with each other, and one of the pair of collecting rollers 34 a that is provided on the feeder main body 31. It consists of a collection roller drive motor 34b as a collection roller drive means and a waste box 34c provided at the rear part of the feeder main body 31. The recovery roller drive motor 34b holds the top tape 24 pulled out from the first top tape outlet 33a or the second top tape outlet 33b of the tape holder 33 to the upper surface side of the tape holder 33 and puts it in the controller 19. When controlled and driven, the pair of collection rollers 34a rotate in directions opposite to each other, and the top tape 24 is pulled and sent into the disposal box 34c.

  That is, in the present embodiment, the top tape collecting mechanism 34 collects by pulling the top tape 24 drawn from the first top tape drawing port 33a or the second top tape drawing port 33b of the tape presser 33. ing.

  4 and 7 (a) and 7 (b), the tension applying mechanism 35 is provided on the feeder main body 31 so as to be swingable in the vertical direction, and is provided coaxially with the swing shaft 41a of the arm member 41. The guide roller 42 provided, the contact roller 43 provided at the front end (rear end) of the arm member 41, and provided between the feeder main body 31 and the arm member 41 so as to sway the arm member 41. A spring member 44 that urges downward in the moving direction (up and down direction) (provides a downward urging force), a protruding piece 45 that extends downward at the rear part of the arm member 41, and a feeder main body 31 are provided A projection piece detection sensor 46 is provided for optically detecting the projection piece 45 when it enters the recess 46a opened from above.

  As shown in FIGS. 7A and 7B and FIGS. 8A and 8B, the feeder main body side spring member attachment portion 51 to which one end side (lower end side) of the spring member 44 is attached to the feeder main body 31. The first arm member side spring member mounting portion 52a and the second arm member side spring member mounting portion 52b to which the other end side (upper end side) of the spring member 44 is attached are provided at the lower part of the arm member 41. Is provided.

  The lower end side of the spring member 44 is attached to the feeder main body side spring member attaching portion 51, and the upper end side is either the first arm member side spring member attaching portion 52a or the second arm member side spring member attaching portion 52b. Selectively attached to either. Here, as shown in FIGS. 8A and 8B, the length L1 of the spring member 44 when the upper end side of the spring member 44 is attached to the first arm member side spring member attachment portion 52a is the spring. The upper end side of the member 44 is larger than the length L2 of the spring member 44 when the upper end side is attached to the second arm member side spring member attaching portion 52b, and the upper end side of the spring member 44 is the first arm member side spring member attaching portion. The downward biasing force (referred to as the first biasing force) applied to the arm member 41 by the spring member 44 when the spring member 44 is attached to the arm member 41 causes the upper end side of the spring member 44 to be applied to the second arm member side spring member attachment portion 52b. The spring member 44 is configured to be larger than a downward biasing force (referred to as a second biasing force) applied to the arm member 41 by the spring member 44.

  7A and 7B, the guide roller 42 is a top that is pulled out from the first top tape outlet 33a or the second top tape outlet 33b of the tape press 33 and pulled by the top tape recovery mechanism 34. The contact roller 43 contacts the tape 24 from below, and the contact roller 43 contacts the top tape 24 extending behind the guide roller 42 from above. In such a state, the arm member 41 is urged downward by the spring member 44 (arrow A shown in the drawing), and accordingly, the top tape 24 responds to the downward urging force of the arm member 41 by the spring member. Tension acts.

  That is, in the present embodiment, the tension applying mechanism 35 is pulled out from the first top tape outlet 33 a or the second top tape outlet 33 b of the tape press 33 and is pulled by the top tape recovery mechanism 34. It is intended to give tension.

  Further, in the present embodiment, the tension applying mechanism 35 is provided on the feeder main body 31 so as to be swingable. The tension applying mechanism 35 is provided at the tip of the arm member 41 and is provided with the first top tape outlet 33a or the second top tape outlet 33a. The contact roller 43 as the contact portion that contacts the top tape 24 pulled out from the top tape outlet 33b and both ends thereof are attached to the arm member 41 and the feeder main body 31, and the arm member 41 is moved in the swinging direction. The spring member 44 is urged and applies tension to the top tape 24 by pressing the contact roller 43 against the top tape 24. The spring member 44 has a lower end attached to the feeder body side spring member attaching portion 51 and an upper end side attached to the top tape 24. Attached to the first arm member side spring member attaching portion 52a and attached to the arm member 41 The “first spring member mounting position” (see FIG. 8A) for applying the urging force is attached to the feeder main body side spring member mounting portion 51 and the upper end side is the second arm member side spring member mounting portion 52b. So that the arm member 41 is selectively attached to any one of the “second spring member attachment positions” (see FIG. 8B) that applies a second urging force smaller than the first urging force to the arm member 41. It has become.

  In the tension applying mechanism 35 having such a configuration, the top pulled from the first top tape outlet 33a or the second top tape outlet 33b to the upper surface side of the tape presser 33 and pulled by the top tape recovery mechanism 34. When the tape 24 is slackened and the arm member 41 biased downward by the spring member 44 swings downward by a predetermined amount (arrow B shown in FIG. 7B), the protrusion attached to the arm member 41 The piece 45 enters the concave portion 46 a of the protrusion piece detection sensor 46 from above (arrow C shown in FIG. 7B), and the protrusion piece 45 is detected by the protrusion piece detection sensor 46.

  The detection information of the protrusion 45 detected by the protrusion detection sensor 46 is sent to the control device 19, and the control device 19 collects the top tape only while receiving the detection information of the protrusion 45 from the protrusion detection sensor 46. The collection roller drive motor 34b of the mechanism 34 is rotated.

  In the tape feeder 13 having such a configuration, when the control device 19 intermittently drives the sprocket drive motor 32b, the sprocket 32 rotates intermittently, and the tape member 20 is pulled by the sprocket 32, and from the rear end side of the feeder body 31. It proceeds intermittently in the direction toward the front end side (the direction from the left side to the right side in FIG. 4). That is, the operation of causing the tape member 20 to advance by intermittently rotating the sprocket 32 is a feeding operation of the tape member 20.

  As described above, when the tape member 20 is moved intermittently by the intermittent rotation operation of the sprocket 32 and the tape member 20 advances intermittently, the component storage portion 22 of the tape member 20 takes out the component of the tape presser 33 at regular time intervals. The component 4 is supplied at a constant time interval to the component removal position 13p, which is located below the opening 33p. Since the top tape 24 is pulled off from the base tape 23 and pulled out to the upper surface side of the tape press 33 before each component storage section 22 reaches the component extraction position 13p, the component storage section 22 is moved to the component extraction position. When reaching 13p, the component 4 is ready to be removed from the component storage unit 22.

  In parallel with the rotation of the sprocket 32, the recovery roller drive motor 34b is intermittently driven. As a result, the top tape 24 drawn to the upper surface side of the tape press 33 has a pair of recovery rollers. While being pulled by 34a, it is sent into the waste box 34c and collected. The recovery operation of the top tape 24 at this time is as follows: (1) The top tape 24 is pulled by the rotation of the recovery roller 34a → (2) The arm member 41 moves upward and the protrusion 45 is a recess 46a of the protrusion detection sensor 46. The detection information of the protruding piece 45 from the protruding piece detection sensor 46 is in a non-output state. → (3) The control device 19 stops the driving of the collection roller drive motor 34b → (4) of the sprocket 32 The top tape 24 is fed out by the intermittent rotation operation of the sprocket 32 by the intermittent rotation operation. → (5) The top tape 24 is slackened. → (6) The arm member 41 is moved downward and the projection piece 45 is the projection piece. Entry into the recess 46a of the detection sensor 46 from above (7) The detection information of the protrusion 45 is output from the protrusion detection sensor 46 → (8) The control device 19 turns Top tape 24 is pulled by the rotation of the driving roller drive motor 34b → (1) collection roller 34a → (2) → proceeds in the order of ....

  As described above, after the sprocket 32 stops rotating, the top tape 24 is pulled by the top tape collecting mechanism 34, and at that time, the tension is applied to the top tape 24 by the tension applying mechanism 35. At this time, the tension applied to the top tape 24 acts on the tape member 20 as a force that pushes the base tape 23 in the feeding direction of the tape member 20, but the top tape acts as a force that pushes the base tape 23 in the feeding direction of the tape member 20. As long as the tension acting on 24 does not exceed the maximum static frictional force between the top tape 24 and the tape presser 33, the tape member 20 does not advance relative to the teeth 32a of the stopped sprocket 32, and the aforementioned The position of the component storage portion 22 of the base tape 23 can be controlled by controlling the rotational position of the sprocket 32 (FIG. 5A). On the other hand, when the tension applied to the top tape 24 exceeds the maximum static frictional force between the top tape 24 and the tape presser 33, the tape member 20 advances against the teeth 32a of the stopped sprocket 32. Therefore, the position of the component storage portion 22 of the base tape 23 cannot be controlled by controlling the rotational position of the sprocket 32 (FIG. 5B).

  In the present embodiment, the “second spring member mounting position” means that the tension applied by the tension applying mechanism 35 to the top tape 24 drawn from the first top tape outlet 33a is the top tape 24 and the tape. The mounting position of the spring member 44 is set so as not to exceed the maximum static frictional force with the presser 33. The “first spring member mounting position” is the second top where the tension applying mechanism 35 has a smaller dimension in the width direction than the first top tape outlet 33a (thus, a larger tension is required for the top tape 24). Set as the attachment position of the spring member 44 so that the tension applied to the top tape 24 drawn out from the tape outlet 33b does not exceed the maximum static frictional force between the top tape 24 and the tape presser 33. Has been.

  Therefore, in the present embodiment, normally, the spring member 44 is attached to the “second spring member attachment position”, and then the top tape 24 is drawn out from the first top tape outlet 33a, and the base tape 23 is removed. When the tape member 20 is used which may interfere with normal removal of the component 4 from the component storage unit 22 due to the influence of static electricity generated when the top tape 24 is peeled off, the tape member 20 is separated from the component removal position 13p. The first tape is pulled out from the second top tape outlet 33b, and the urging force applied to the arm member 41 (that is, the tension applied to the top tape 24 by the tension applying mechanism 35) increases. Attach (change) at the “member attachment position”.

  In FIG. 1, the mounting head 16 is moved when the control device 19 controls the operation of the head moving robot 14 described above. The suction nozzle 15 provided in the mounting head 16 moves up and down and rotates around the vertical axis with respect to the mounting head 16 when the control device 19 controls the operation of a nozzle drive mechanism 15a including an actuator (not shown). In the suction (pickup) and release (mounting to the substrate 2) operation of the component 4 by the nozzle 15, the control device 19 controls the operation of the suction mechanism 15b including an actuator (not shown) to apply a vacuum pressure to the suction nozzle 15. This is done by supplying and releasing the supply of vacuum pressure.

  In FIG. 1, the substrate camera 17 is moved when the control device 19 controls the operation of the head moving robot 14, and the imaging operation of the substrate camera 17 is controlled by the control device 19. Image data obtained by the imaging operation of the substrate camera 17 is input to the control device 19 and image recognition is performed by an image recognition unit 19 a included in the control device 19.

  In FIG. 1, the imaging operation of the component camera 18 is controlled by the control device 19, and image data obtained by the imaging operation of the component camera 18 is input to the control device 19 and image recognition is performed by the image recognition unit 19 a.

  Next, a component mounting method using the component mounting apparatus 1 in the present embodiment will be described. In order to perform a component mounting operation for mounting the component 4 on the electrode portion 3 on the substrate 2 by the component mounting apparatus 1, first, the operator adjusts the mounting position of the spring member 44 of each tape feeder 13 (shown in FIG. 9). Step ST1). In the adjustment of the mounting position of the spring member 44, when the top tape 24 is pulled out from the first top tape outlet 33a, the spring member 44 is mounted at the “second spring member mounting position” (FIG. 8B). When the top tape 24 is pulled out from the second top tape outlet 33b, the spring member 44 is attached to the “first spring member attachment position” (FIG. 8A).

  When the attachment position of the spring member 44 is adjusted in step ST1 as described above, the operator performs a mounting start operation by operating the start switch 19b (FIG. 1) connected to the control device 19 (step ST2 shown in FIG. 9). ). When the operator performs a mounting start operation, the operation signal is output to the control device 19, and the control device 19 executes the following component mounting operation based on a previously stored mounting program.

  In the component mounting operation, first, the control device 19 operates the substrate transport path 11 to receive the substrate 2 sent from the upstream process device and carry it into the component mounting device 1, and put it in a predetermined work position. Positioning is performed (step ST3 shown in FIG. 9).

  After positioning the substrate 2 at the working position by the substrate transport path 11, the control device 19 moves the substrate camera 17 (the mounting head 16) above the substrate 2 and causes the substrate camera 17 to move the substrate mark 2 m (on the substrate 2). Image recognition is performed by performing the imaging of FIG. 1), and the positional deviation from the normal position of the substrate 2 on the substrate transport path 11 is calculated (step ST4 shown in FIG. 9).

  After calculating the positional deviation of the substrate 2 in step ST4, the control device 19 operates the head moving robot 14 to move the mounting head 16 above the tape feeder 13. Then, operation control of the tape feeder 13 (operation control of the sprocket drive motor 32b and the recovery roller drive motor 34b) is performed to supply the component 4 to the component extraction position 13p of the tape feeder 13, while the component extraction position of the tape feeder 13 is reached. The suction nozzle 15 is brought into contact with the component 4 supplied to 13p to suck (pick up) the component 4 (step ST5 shown in FIG. 9).

  When the control device 19 sucks the component 4 to the suction nozzle 15, the control device 19 moves the mounting head 16 so that the component 4 passes above the component camera 18, and causes the component camera 18 to capture the component 4. Image recognition based on the received image data is executed (step ST6 shown in FIG. 9). Then, based on the result of the image recognition, the part 4 is inspected for abnormalities (deformation, defect, etc.) and the position of the part 4 with respect to the suction nozzle 15 is grasped. (Deviation) is calculated (step ST7 shown in FIG. 9).

  After calculating the suction deviation of the component 4, the control device 19 moves the mounting head 16 so that the component 4 sucked by the suction nozzle 15 is positioned above the substrate 2. Then, the component 4 sucked by the suction nozzle 15 is printed on the electrode unit 3 on the substrate 2 (on this electrode unit 3 solder is printed by a solder printer disposed on the upstream process side of the component mounting apparatus 1). ), The supply of the vacuum pressure to the suction nozzle 15 is released, and the component 4 is mounted on the substrate 2 (step ST8 shown in FIG. 9).

  Here, when mounting the component 4 on the substrate 2, the control device 19 adsorbs the substrate 2 so that the positional deviation of the substrate 2 obtained in step ST4 and the adsorption deviation of the component 4 obtained in step ST7 are corrected. The position of the nozzle 15 is corrected (including rotation correction).

  When the component 4 is mounted on the substrate 2 in step ST8, the control device 19 determines whether all the components 4 to be mounted on the substrate 2 have been mounted on the substrate 2 (step ST9 shown in FIG. 9). As a result, when it is determined that all the components 4 to be mounted on the substrate 2 have not been mounted on the substrate 2, the process returns to step ST5, and steps ST5 to ST9 are executed. On the other hand, if it is determined in step ST9 that all the components 4 to be mounted on the substrate 2 have been mounted on the substrate 2, the control device 19 carries the substrate 2 to the downstream process side device via the substrate transport path 11. After that (step ST10 shown in FIG. 9), it is determined whether or not there is a board 2 on which the component 4 is to be mounted (step ST11 shown in FIG. 9). Here, if the control device 19 determines that there is a board 2 on which the component 4 is to be mounted, then the tape for supplying the component 4 to the next board 2 based on a predetermined mounting program. It is determined whether or not the type of the tape member 20 needs to be changed for the feeder 13 (step ST12 shown in FIG. 9).

  If it is determined in step ST12 that the type of the tape member 20 need not be changed, the control device 19 proceeds to step ST3 to carry in the next substrate 2 and change the type of the tape member 20. If it is determined that it is necessary, the component mounting operation by the component mounting apparatus 1 is temporarily stopped (step ST13 shown in FIG. 9). During this time, the operator performs various operations associated with changing the type of the tape member 20 (step ST14 shown in FIG. 9).

  Here, the operations associated with the change in the type of the tape member 20 performed in step ST14 are specifically, the reel 25 of the tape member 20 currently mounted on the component mounting apparatus 1 is removed and a new tape member 20 is removed. In addition to the operation of attaching the reel 25, the tape member 20 is prevented from being normally removed from the component storage portion 22 by the influence of static electricity generated when the top tape 24 is peeled off from the base tape 23. This refers to an operation of changing the outlet of the top tape 24 from the tape press 33 depending on whether or not there is a possibility that the top tape 24 will be lost. Here, the outlet of the top tape 24 from the tape holder 33 prevents normal removal of the component 4 from the component storage unit 22 due to the influence of static electricity generated when the top tape 24 is peeled off from the base tape 23. When the tape member 20 is of a type that is not likely to be removed, the top tape 24 is pulled out from the first top tape outlet 33a, and the influence of static electricity generated when the top tape 24 is peeled off from the base tape 23 is used. Thus, when the tape member 20 of the type that may hinder the normal removal of the component 4 from the component storage unit 22 is used, the top tape 24 is pulled out from the second top tape outlet 33b.

  When the operator performs various operations accompanying the change of the type of the tape member 20 in step ST14, the operator returns to step ST1 and adjusts the attachment position of the spring member 44 as necessary. That is, in step ST14, when it is necessary to change the attachment position of the spring member 44 as a result of performing various operations associated with changing the type of the tape member 20, the attachment position of the spring member 44 is changed. Specifically, when the operator performs the operation of changing the outlet of the top tape 24 from the tape press 33 from the first top tape outlet 33a to the second top tape outlet 33b in step ST14, An operation of changing the mounting position of the spring member 44 from the “second spring member mounting position” to the “first spring member mounting position” is performed. In step ST14, the outlet of the top tape 24 from the tape pressing member 33 is changed to the first position. When the operation of changing from the second top tape outlet 33b to the first top tape outlet 33a is performed, the attachment position of the spring member 44 is changed from “first spring member attachment position” to “second spring member attachment position”. To change to "". As a result, the tape member can be used regardless of whether the top tape 24 is pulled out from either of the two top tape outlets (the first top tape outlet 33a and the second top tape outlet 33b) having different widthwise dimensions. 20 does not advance with respect to the teeth 32a of the stopped sprocket 32.

  As described above, in the component mounting apparatus 1 according to the present embodiment, the width direction dimensions of the tape presser 33 and the outlet of the top tape 24 (the first top tape outlet 33a and the second top tape outlet 33b). Since the magnitude of the tension applied to the top tape 24 is changed by changing the mounting position of the spring member 44 of the tension applying mechanism 35 in accordance with (the thickness direction dimension of the top tape), the tape member 20 does not advance with respect to the teeth 32a of the stopped sprocket 32, thereby preventing the occurrence of supply deviation of the component 4 at the component removal position 13p.

Tape member of the tape feeders to provide part article mounting method is Ru possible to prevent a situation in which supply shifted component is generated in and take out parts got position progress for the teeth of the sprocket in the stop.

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 2 Board | substrate 4 Components 11 Board | substrate conveyance path (board | substrate positioning part)
DESCRIPTION OF SYMBOLS 13 Tape feeder 13p Parts extraction position 15 Adsorption nozzle 16 Mounting head 20 Tape member 21 Feed hole 22 Parts accommodating part 23 Base tape 24 Top tape 25 Reel 31 Feeder main body 31a Tape path 32 Sprocket 32a Teeth 33 Tape pressing 33a First top tape Drawer port 33b Second top tape drawer port 34 Top tape recovery mechanism 35 Tension applying mechanism 41 Arm member 43 Contact roller (contact portion)
44 Spring member

Claims (1)

A board positioning unit for positioning the board, a tape feeder for supplying parts, and a mounting head for picking up the parts supplied by the tape feeder by a suction nozzle. The tape feeder stores the parts in the part storage part. And a tape member that is supplied to the reel in a state of being wound around the reel. A feeder main body having a tape passage which is a passage of the tape member fed out, and the teeth provided on the outer periphery of the feeder main body are inserted into the feed holes of the tape member fed out from the reel and rotated intermittently. As a result, the tape member is intermittently sent in the tape path, and the base tape component storage part is A sprocket that is positioned at the parts take-out position set on the feeder main body at intervals, and provided on the feeder main body, presses the upper surface of a part of the tape member from the top until it reaches the parts take-out position after being fed from the reel. In addition, the top tape that is provided adjacent to the component take-out position and peeled off from the base tape is drawn out upward, and the top tape in the thickness direction of the top tape from the first top tape outlet. Tape retainer having a second top tape outlet that is small in size and is provided at a position opposite to the feeding direction of the tape member from the component take-out position and from which the top tape peeled off from the base tape is drawn upward And a first top tape outlet or a second top tape puller of the tape presser A top tape recovery mechanism that pulls and recovers the top tape pulled out from the opening, and tensions the top tape that is pulled out from the first top tape outlet or the second top tape outlet and pulled by the top tape recovery mechanism. A tension applying mechanism, and the tension applying mechanism includes an arm member swingably provided on the feeder main body, and a first top tape outlet or a second top provided at the tip of the arm member. A contact part that contacts the top tape pulled out from the tape outlet, and both ends are attached to the arm member and the feeder body, urging the arm member in the swinging direction, and pressing the contact part against the top tape Component mounting by a component mounting device consisting of a spring member that tensions the top tape A method,
When pulling out the top tape from the second top tape outlet, the spring member is attached to the first spring member mounting position for applying the first biasing force to the arm member, and the top tape is pulled out from the first top tape outlet. A step of attaching the spring member to a second spring member attachment position that gives the arm member a second biasing force smaller than the first biasing force;
A step of positioning the substrate by the substrate positioning unit;
A step of picking up a component by a suction nozzle from a component storage portion of a base tape located at a component take-out position by a tape feeder;
Mounting the component picked up by the suction nozzle on the substrate positioned by the substrate positioning unit.

Images