JP6369863B2 - Tape feeder - Google Patents

Description

  The present invention relates to a tape feeder that supplies a component to a pickup position of a component mounting apparatus by pitch-feeding a tape holding the component.

  In a component mounting apparatus, a method using a tape feeder is known as a method for supplying a component to a pickup position of a nozzle of a transfer head. In this method, a tape for holding a component is pulled out from a supply reel, and pitch-fed in synchronization with a component mounting timing to be supplied to a nozzle.

  In such a tape feeder, when there is no longer any tape drawn from the supply reel, a splicing operation for inserting the tape drawn from the new supply reel and switching the tape is required.

  As a splicing mechanism for performing this splicing work, the present inventors have so far developed a splicing mechanism using a tape presser 100 as shown in FIG. In this splicing mechanism, the subsequent tape T2 is introduced into the tape transport path 101 so as to overlap the tape T1 currently in use, and the tip thereof is positioned directly above the sprocket 102. A tape presser 100 is disposed above the sprocket 102, and the tape presser 100 presses the tape with an elastic force. At this time, the teeth of the sprocket 102 are engaged only with the hole of the tape T1 currently in use, and are not engaged with the hole of the subsequent tape T2. Thereafter, when the rear end of the currently used tape T1 passes through the sprocket 102, the subsequent tape T2 is pressed by the tape presser 100, and the hole portion meshes with the teeth of the sprocket 102.

  However, in the splicing mechanism shown in FIG. 15, the succeeding tape T2 is positioned immediately above the sprocket 102 in a state of being overlaid on the tape T1 currently in use. There is a possibility that T2 may be transported together with the tape T1 currently in use, and there is a slight problem in the stability of the splicing operation.

  In contrast, Patent Document 1 discloses a tape feeder having two tape introduction paths. According to the tape feeder of Patent Document 1, a tape that is currently in use in a splicing operation and a subsequent tape are used. There is no problem of being transported together. However, in the tape feeder of Patent Document 1, the tape feeder such as a sprocket is arranged in each of the two systems of the tape introduction path, so that the configuration of the tape feeder becomes complicated and increases in size and cost.

JP 2010-147223 A

  An object of the present invention is to provide a tape feeder that can stably perform splicing work with a simple configuration.

According to the present invention, the following tape feeder is provided.
(1) A tape feeder that feeds a component to a pickup position of a component mounting apparatus by pitch-feeding a tape holding the component,
As a tape introduction path for introducing a tape into a tape transport path leading to the pickup position, a first tape introduction path and a second tape introduction path are provided, and the first tape introduction path and the second tape introduction path are respectively Join the tape transport path at the downstream end,
A first tape feeding means for pitch feeding the tape is disposed in the tape conveyance path,
In the tape introduction path, the second tape feeding means for feeding the tape only to the first tape introduction path side is arranged,
A tape feeder having tape transfer means for transferring a tape being conveyed through the first tape introduction path to the second tape introduction path.
(2) The first tape introduction path is formed by a support piece that protrudes inward from at least one of the opposing surfaces of the pair of support plates that are arranged so that the interval between the opposing surfaces can be expanded and contracted,
The tape feeder according to (1), wherein the tape transfer means transfers the tape to the second tape introduction path by pressing the tape conveyed along the support piece.
(3) A locking piece protruding inward is formed on at least one of the opposing surfaces of the pair of support plates,
The tape transfer means expands the interval between the opposed surfaces of the pair of support plates by pressing the locking pieces before pressing the tape conveyed along the support pieces. The tape feeder described.
(4) The support piece has a taper surface, and when the tape transfer means presses the tape conveyed along the support piece, the tape is pressed while hitting the taper surface of the support piece. The tape feeder according to (2), wherein the interval between the opposing surfaces of the pair of support plates is enlarged.
(5) The tape transfer means is composed of a lever member that is movable in the vertical direction, and moves the tape transported in the first tape introduction path from the initial position to the second tape by moving upward or downward. The tape feeder according to any one of (1) to (4), which is shifted to the introduction path.
(6) The tape transfer means is composed of a lever member that is movable in the vertical direction, and moves the tape transported in the first tape introduction path from the initial position to the second tape by moving upward or downward. Move to the introduction path,
The tape feeder according to any one of (2) to (4), wherein the lever member is provided with an engaging portion having a groove fitted into each end portion of the pair of support plates at the initial position.
(7) The tape feeder according to (5) or (6), further including a biasing unit that biases the lever member to the initial position.
(8) A through hole or a recess into which an engagement protrusion formed on the lever member is fitted is formed on at least one opposing surface of the pair of support plates,
The engagement protrusion has a tapered surface, and the portion including the tapered surface in the initial position fits into the through hole or the recess, and when the lever member moves upward or downward from the initial position, The tape feeder according to any one of (5) to (7), wherein the tapered surface enlarges an interval between opposed surfaces of the pair of support plates.
(9) Each of the first tape feeding means and the second tape feeding means includes a first sprocket and a second sprocket that are engaged with holes provided in the tape at a constant pitch and transport the tape. ) To (8).
(10) The tape is allowed to move from the first tape introduction path to the second tape introduction path between the first tape introduction path and the second tape introduction path, but the tape is the second tape introduction path. The tape feeder according to any one of (1) to (9), further including transition selection means for preventing transition from the tape introduction path to the first tape introduction path.

  Since the tape feeder of the present invention has the first tape introduction path and the second tape introduction path as the tape introduction path for introducing the tape to the tape transport path leading to the pickup position, the tape feeding path currently in use The standby position of the subsequent tape can be completely separated. Therefore, there is no problem that the currently used tape and the subsequent tape are conveyed together in the splicing operation, and the splicing operation can be performed stably.

  Moreover, since the tape feeder of the present invention has a tape transfer means for transferring the tape being conveyed through the first tape introduction path to the second tape introduction path, the tape feeder is located on the first tape introduction path side. If only the tape feeding means is arranged, the splicing work can be performed. That is, since the tape feeding means is not arranged on the second tape introduction path side, the configuration is simplified, and the size and cost can be reduced.

It is a whole lineblock diagram showing one example of a tape feeder of the present invention. It is an expansion schematic diagram of the component detection sensor part in the tape feeder of FIG. It is an expansion schematic diagram of the tape end detection sensor part in the tape feeder of FIG. It is a detailed block diagram which shows the tape introduction path part in the tape feeder of FIG. It is a figure which shows the state which removed the near side support plate among a pair of support plates in FIG. It is a perspective view of the principal part by the AA cross section of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a perspective view which shows a tape transfer means. It is a perspective view which shows the flexible member which comprises the tape introduction part of a 1st tape introduction path. It is explanatory drawing which shows the procedure of the splicing operation | work in the Example of this invention. It is explanatory drawing which shows the other Example of this invention. It is explanatory drawing which shows other Example of this invention. It is a figure which shows other Example of this invention, (a) is a block diagram of the principal part, (b) is a schematic perspective view of the principal part. It is explanatory drawing which shows the conventional splicing mechanism for performing a splicing operation | work.

  Embodiments of the present invention will be described below based on examples shown in the drawings.

  FIG. 1 is an overall configuration diagram showing an embodiment of a tape feeder of the present invention. The tape feeder of FIG. 1 is configured by providing each element described below in an elongated box-shaped tape feeder main body 1, and pitch-feeding the tape T holding the components to the components of the component mounting apparatus. Supply to pickup position P. Although not shown, parts are held on the tape T at a predetermined pitch (constant pitch) along the longitudinal direction.

  A tape transport path 2 leading to the pickup position P is provided at the upper part of the tape feeder main body 1. The upstream side of the tape transport path 2 is branched into two systems: a first tape introduction path 3 and a second tape introduction path 4. That is, the tape feeder of FIG. 1 has a first tape introduction path 3 and a second tape introduction path 4 as tape introduction paths for introducing the tape T into the tape transport path 2. Each of the second tape introduction paths 4 joins the tape transport path 2 at the downstream end. Although details will be described later, the tape T is first introduced from the tape introduction part 3 a of the first tape introduction path 3 and guided along the first tape introduction path 3 and the tape transport path 2.

  A first sprocket 5 is arranged on the downstream end side of the tape transport path 2 as a first tape feeding means for feeding the tape T toward the pickup position P. The teeth of the first sprocket 5 are engaged with tape feed holes provided at a constant pitch on the tape T, and the pitch of the first sprocket 5 is rotated to feed the tape. A rotation shaft of a first motor 7 is connected to the first sprocket 5 via a plurality of intermediate gears 6, and the first sprocket 5 is rotated by the rotation drive of the first motor 7. The position adjacent to the downstream side of the first sprocket 5 is a pickup position P for parts.

  In the tape introduction path, the second sprocket 8 is arranged only as the second tape feeding means for feeding the tape toward the tape transport path 2 only on the first tape introduction path 3 side. The second sprocket 8 meshes with a tape feed hole provided in the tape at a constant pitch, and the second sprocket 8 rotates so that the tape travels along the first tape introduction path 3 toward the tape transport path 2. Sent. The second sprocket 8 is rotated by the rotation drive of the second motor 9 through the plurality of intermediate gears 6. The detailed configuration of the tape introduction path portion is omitted in FIG. 1, and will be described later with reference to FIGS.

  In the tape feeder of FIG. 1, a third sprocket 10 is arranged in the tape transport path 2 as third tape feeding means for feeding the tape toward the first sprocket 5. The third sprocket 10 meshes with a tape feed hole provided on the tape at a constant pitch, and the tape is fed toward the first sprocket 5 along the tape transport path 3 by rotating the third sprocket 10. It is done. The third sprocket 10 is rotated by the rotation drive of the third motor 11 through the plurality of intermediate gears 6.

  The controller 12 controls the rotational drive of the first motor 7, the second motor 9, and the third motor 11. The types of the first motor 7, the second motor 9, and the third motor 11 are not particularly limited, but in this embodiment, a servo motor with an encoder is used.

  A component detection sensor 13 for detecting a component held on the tape T is disposed on the upstream side of the third sprocket 10 in the tape conveyance path 2, and an end portion of the tape T is disposed on the upstream side of the component detection sensor 13. A tape end detection sensor 14 for detecting the above is disposed.

  The component detection sensor 13 is a transmissive optical sensor. As shown in FIG. 2, the light emitting unit 13 a disposed on the lower surface side of the tape T passing through the tape transport path 2 and the light emitting unit 13 a on the upper surface side of the tape T. And a light receiving portion 13b disposed to face each other. Therefore, when a component (not shown) held on the tape T comes to the optical axis position of the component detection sensor 13, the amount of light received by the light receiving portion 13b is reduced by blocking the spot light from the light emitting portion 13a by the component. The received light amount information from the light receiving unit 13b is transmitted to the control unit 12. The control unit 12 detects the presence or absence of a component held on the tape based on the received light amount information from the component detection sensor 12, and detects the arrival of the component end portion of the tape.

  As shown in FIG. 3, the tape end detection sensor 14 is a mechanical sensor using a lever 14a, and includes a lever 14a and an optical sensor element 14b. One end of the lever 14a is connected to the tape transport path 2. Located in. The other end of the lever 14a is located between the light emitting part and the light receiving part of the sensor element 14b. When the tip of the tape T arrives at the position of one end of the lever 14a, one end of the lever 14a is lifted by the tip of the tape T and rotates around the support shaft 14a-1. Thereby, the light from the light emitting part of the sensor element 14b is received by the light receiving part, the sensor element 14b is turned on, and the tip of the tape T is detected. While the tape T is passing, one end of the lever 14a remains lifted, and the sensor element 14b remains ON. Thereby, the presence of the tape T is detected. When the rear end of the tape T passes, one end of the lever 14a is lowered. As a result, the sensor element 14b is turned from ON to OFF, and the rear end of the tape T is detected. The tape end detection information by these tape end detection sensors 14 is transmitted to the control unit 12.

  Next, a detailed configuration of the tape introduction path portion will be described. FIG. 4 is a detailed configuration diagram showing a tape introduction path portion in the tape feeder of FIG. FIG. 5 is a diagram illustrating a state in which the front support plate of the pair of support plates in FIG. 4 is removed. 6 is a perspective view of a main part taken along line AA in FIG. 4, FIG. 7 is a cross-sectional view taken along line BB in FIG. 4, and FIG. 8 is a cross-sectional view taken along line CC in FIG.

  Referring to FIGS. 4 to 6, the first tape introduction path 3 described with reference to FIG. 1 is formed by a pair of support plates 15 disposed so as to sandwich the second sprocket 8. Specifically, the first tape introduction path 3 is formed by a pair of support pieces 15 a protruding inward from the lower ends of the opposing surfaces of the pair of support plates 15. The pair of support plates 15 are opposed to each other by connecting two upper portions thereof with pins 16, and the lower ends are free. Therefore, the interval between the opposing surfaces of the pair of support plates 15 can be expanded or reduced.

  The second tape introduction path 4 is formed below the first tape introduction path 3, and the tape transfer means for transferring the tape being conveyed through the first tape introduction path 3 to the second tape introduction path 4. 17 is disposed above the first tape introduction path 3.

  The tape transfer means 17 is composed of a lever member 17a rotatable around the support shaft 18, and is biased to an initial position above the first tape introduction path 3 (a pair of support pieces 15a) by a coil spring 19.

FIG. 9 is a perspective view showing the tape transfer means 17. The lever member 17a constituting the tape transfer means 17 is formed with a pair of engaging portions 17b so as to protrude from both side surfaces in the longitudinal direction. V-shaped grooves 17c are formed on the upper surfaces of the pair of engaging portions 17b. These grooves 17c are fitted into the lower ends of the pair of support plates 15 when the lever member 17a is in the initial position as shown in FIGS. Thereby, when the lever member 17a is in the initial position, the interval between the opposing surfaces of the pair of support plates 15 is prevented from increasing, and the tape is prevented from falling off the first tape introduction path 3 and coming off. it can. A notch 15b is formed in a portion where the groove 17c (a pair of engaging portions 17b) is fitted in the lower end portions of the pair of support plates 15, and the pair of engaging portions 17b are fitted in the notches 15b. Thus, the first tape introduction path 3 is not blocked by the pair of engaging portions 17b.

  Returning to FIG. 9, a pair of first engagements are provided so that the distal end side (front side in FIG. 9) and the base end side (back side in FIG. 9) of the lever member 17 a protrude from both side surfaces in the longitudinal direction. A protrusion 17d and a pair of second engaging protrusions 17e are formed. The pair of first engagement protrusions 17d and the pair of second engagement protrusions 17e have tapered surfaces 17d-1 and 17e-1, respectively.

  When the lever member 17a is in the initial position as shown in FIGS. 4 and 8, the pair of first engaging protrusions 17d includes a pair of portions including the tapered surfaces 17d-1 formed on the pair of support plates 15. Is inserted into the through hole 15c. Similarly, when the lever member 17a is in the initial position, the pair of first engaging protrusions 17e are fitted into the pair of through holes 15d formed in the pair of support plates 15 when the portions including the tapered surfaces 17e-1 are fitted. . Note that the through holes 15c and 15d may be concave portions into which the tapered surface 17d-1 and the tapered surface 17e-1 can be fitted.

  Referring to FIGS. 4 and 5 again, the tape leading end detection sensor 20 is disposed on the downstream side of the second sprocket 8 in the first tape introduction path 3. The tape front end detection sensor 20 is a mechanical sensor using a lever 20a, similar to the tape end detection sensor 14 described in FIG. 3, and includes a lever 20a and an optical sensor element 20b. One end of 20 a is positioned in the first tape guide path 3 by the biasing force of the coil spring 21. The other end of the lever 20a is located between the light emitting part and the light receiving part of the sensor element 20b. When the leading end of the tape arrives at the position of one end of the lever 20a, one end of the lever 20a is lifted by the leading end of the tape and rotates around the support shaft 18. As a result, light from the light emitting portion of the sensor element 20b is received by the light receiving portion, the sensor element 20b is turned on, and the tip of the tape is detected. This tape tip detection information is transmitted to the control unit 12 described in FIG.

  Further, the tape introduction portion 3a of the first tape introduction path 3 is formed of an inverted L-shaped flexible member 22 as shown in FIG. Specifically, the vertical plate portion 22a of the flexible member 22 is fixed to the tape feeder main body 1 (see FIG. 1), and the horizontal plate portion 22b constitutes the tape introducing portion 3a. The tape introducing portion 3a formed of the horizontal plate portion 22b can be displaced in the direction of the arrow in FIG.

  In the above configuration, the tape T is first introduced from the tape introduction part 3 a of the first tape introduction path 3 and guided along the first tape introduction path 3 and the tape transport path 2. That is, the tape T is sent to the third sprocket 10 by the second sprocket 8, and then the second sprocket 8 is stopped and sent to the first sprocket 5 by the third sprocket 10. Thereafter, the third sprocket 10 is stopped, and the tape T is pitch-fed by the pitch rotation of the first sprocket 5. The component held on the tape T is picked up at the pickup position P by the nozzle of the transfer head of the component mounting apparatus. Note that a cover tape is bonded (attached) to the tape T so as to cover the component and prevent the component from falling off. The cover tape is provided between the third sprocket 10 and the first sprocket 5. The tape is peeled from the tape T by a known peeling mechanism (not shown) at an appropriate position in the tape transport path 2.

  While the tape T is being used, a subsequent tape is prepared, and then a splicing operation for switching the tape is performed. FIG. 11 is an explanatory diagram showing a procedure of splicing work. In FIG. 11, the tape currently in use is indicated by T1, and the subsequent tape is indicated by T2.

  In FIG. 11 (a), the tape T1 currently in use is introduced from the first tape introduction path 3 and the tape introduction section 3a in the manner described above, and is guided along the first tape introduction path 3 and the tape transport path 2. Indicates the state.

  While the tape T1 is being used, the subsequent tape is prepared. First, as shown in FIG. 11B, by moving (rotating) the lever member 17a constituting the tape transfer means 17 downward, the tape T1 conveyed through the first tape introduction path 3 is moved to the second position. Transition to the tape introduction path 4. As described with reference to FIG. 6, the first tape introduction path 3 is formed by a pair of support pieces 15 a that protrude inward from the lower ends of the opposed surfaces of the pair of support plates 15 that are opposed to each other so that the interval between the opposed surfaces can be expanded and contracted. Since it is formed, the tape T1 is removed from the first tape introduction path 3 and moved to the second tape introduction path 4 by moving (rotating) the lever member 17a downward and pushing down the tape T1. That is, the tape introduction path for introducing the tape T1 into the tape transport path 2 is switched from the first tape introduction path 3 to the second tape introduction path 4. In the stage before the switching, the tape T1 is introduced into the tape feeder main body 1 from the tape introduction portion 3a (see FIG. 1). However, the tape introduction portion 3a is located on the side of the flexible member 22 as described with reference to FIG. Since it is formed by the plate portion 22b, when the tape T1 is pushed down to move to the second tape introduction path 4, the horizontal plate portion 22b is displaced in the direction of the arrow in FIG. As a result, the tape introduction part of the tape T1 also moves from the tape introduction part 3a on the first tape introduction path 3 side to the tape introduction part 4a on the second tape introduction path 4 side (see FIGS. 1, 4 and 5).

  In the present embodiment, as described with reference to FIGS. 8 and 9, when the lever member 17a is in the initial position, the portion including the tapered surface 17d-1 of the first engagement protrusion 17d and the second engagement protrusion 17e. The portions including the tapered surface 17e-1 are fitted into the through holes 15c and 15d formed in the pair of support plates 15, respectively. Accordingly, when the lever member 17a is moved (rotated) downward from this initial state, the taper surfaces 17d-1 and 17e-1 increase the distance between the opposed surfaces of the pair of support plates 15. As a result, the tape T <b> 1 transported through the first tape introduction path 3 can be smoothly transferred to the second tape introduction path 4. Further, before the lever member 17a hits and presses the tape T1 transported through the first tape introduction path 3, the distance between the opposing surfaces of the pair of support plates 15 increases, so that the tape T1 is not strongly pressed. However, the tape T1 can be transferred to the second tape introduction path 4, and damage to the tape T1 can be prevented.

  Although the tape T1 thus transferred to the second tape introduction path 4 is detached from the second sprocket 8, the tape T1 meshes with the first sprocket 5 described in FIG. Thus, the pitch is continuously fed.

  The timing for moving the tape T1 to the second tape introduction path 4 by operating the lever member 17a may be any time as long as the tape T1 is engaged with the third sprocket 10 described in FIG. After the engagement with the third sprocket 10, even if the tape T <b> 1 is detached from the second sprocket 8, it is transported through the tape transport path 2 by the rotation of the third sprocket 10, and then pitch-fed by the first sprocket 5. The

  The operation of the lever member 17a can be automatically performed. For example, it is detected from the encoder values of the second motor 8 and the third motor 11 that the tape T1 is engaged with the third sprocket 10, and then the lever member 17a is moved (rotated) downward by an actuator or the like. Can be.

  When the tape T1 is transferred to the second tape introduction path 4, the subsequent tape T2 is introduced to the first tape introduction path 3 as shown in FIG. Specifically, the tape T2 is manually introduced from the tape introduction part 3a while rotating the second sprocket 8 arranged in the first tape introduction path 3, and the tape T2 is engaged with the second sprocket 8. When meshed with the second sprocket 8, the tape T2 is automatically fed by the second sprocket 8. When the leading end of the tape T2 is detected by the above-described tape leading end detection sensor 20, the control unit 12 shown in FIG. 1 stops the second motor 9. As a result, the tip of the tape T2 stops at the position of the tape tip detection sensor 20 as shown in FIG. 11C, and waits until the splicing operation is performed.

  In the splicing operation, the rear end of the currently used tape T1 is detected by the tape end detection sensor 14 described in FIG. 2, or the component end portion of the tape T1 is detected by the component detection sensor 13 described in FIG. Or when both the rear end of the tape T1 and the end of the component are detected. That is, when the rear end or component end portion of the tape T1 currently in use is detected, the control unit 12 shown in FIG. 1 rotates the second motor 9. As a result, as shown in FIG. 11 (d), the subsequent tape T2 is transported through the first tape introduction path 3, and subsequently reaches the tape transport path 2, and the splicing operation for switching the tape from the tape T1 to the tape T2 is automatically performed. To be implemented. Thereafter, the procedure of FIGS. 11A to 11D is repeated, and the next splicing operation is performed.

  As described above, the tape feeder of the present embodiment has the first tape introduction path 3 and the second tape introduction path 4 as the tape introduction path, so that the tape feeding path currently used and the standby position of the subsequent tape are completely set. Can be separated. Therefore, there is no problem that the currently used tape and the subsequent tape are conveyed together in the splicing operation, and the splicing operation can be performed stably. Further, the tape feeder of the present embodiment has the tape transfer means 17 for transferring the tape being transported through the first tape introduction path 3 to the second tape introduction path 4. If the tape feeding means is arranged only on the tape introduction path 3 side, the splicing operation can be performed. That is, since the tape feeding means is not disposed on the second tape introduction path 4 side, the configuration is simplified, and the size and cost can be reduced.

  Next, another embodiment of the present invention will be described. In the previous embodiment, as described with reference to FIGS. 8 and 9, the first engagement protrusion 17d and the second engagement protrusion 17e formed on the lever member 17a are tapered surfaces 17d-1, 17e-1 and a pair of supports. The distance between the opposing surfaces of the pair of support plates 15 is increased when the lever member 17a is moved (rotated) downward in relation to the through holes 15c and 15d in the plate 15. The same effect can be obtained depending on the example.

  That is, in this embodiment, as shown in FIG. 12, a pair of locking pieces 15e projecting inward is formed on the opposing surfaces of the pair of support plates 15, and the tape transfer means 17 (lever member 17a) is used as the support piece 15a. By pressing the locking piece 15e before pressing the tape T conveyed along the gap, the interval between the opposed surfaces of the pair of support plates 15 is increased. Also, as shown in FIG. 12, if the contact surface between the locking piece 15e and the tape transfer means 17 (lever member 17a) is a tapered surface, the distance between the opposing surfaces of the pair of support plates 15 can be expanded smoothly. be able to.

  FIG. 13 shows still another embodiment. In this embodiment, the taper surfaces 15a-1 are formed on the upper surfaces of the pair of support pieces 15a, and both ends of the tape T are pressed while being in contact with the taper surfaces 15a-1, so that between the opposing surfaces of the pair of support plates 15 are formed. The interval is increased.

  FIG. 14 shows still another embodiment. In this embodiment, a transition selection means 30 is provided between the first tape introduction path 3 and the second tape introduction path 4. This transition selection means 30 allows the tape to transition from the first tape introduction path 3 to the second tape introduction path 4 but allows the tape to transition from the second tape introduction path 4 to the first tape introduction path 3. Is a hindrance.

  For example, as shown in FIG. 11C, when the tape T1 currently in use is in the second tape introduction path 4 and the subsequent tape T2 is in the first tape introduction path 3, tension or the like is applied to the tape T1. If it acts, the tape T1 may rise and move to the second tape introduction path 4. When the tape T1 moves to the second tape introduction path 4, troubles such as jamming may occur due to overlapping with the tape T2. The transition selection means 30 is provided to prevent such troubles from occurring.

  In FIG. 14, the transition selection means 30 includes a transition prevention plate 31 and a torsion spring 32. The transition prevention plate 31 is disposed along the lower ends of the pair of support plates 15 and is provided to be rotatable around a rotation shaft 31 a fixed to the tape feeder main body 1. On the other hand, one end of the torsion spring 32 is fixed to the tape feeder main body 1 and the other end is fixed to the transition prevention plate 31, and a force is applied to rotate the transition prevention plate 31 upward. Therefore, as shown in FIG. 14, the transition prevention plate 31 normally hits the lower ends of the pair of support plates 15 and is positioned directly below the first tape introduction path 3 so as to straddle the lower ends of the pair of support plates 15. To do. Further, the transition prevention plate 31 cannot rotate upward from this position. As a result, the transition blocking plate 31 prevents the tape from shifting from the second tape introduction path 4 to the first tape introduction path 3.

  On the other hand, since the transition prevention plate 31 can rotate downward from the position of FIG. 14, the tape is allowed to transition from the first tape introduction path 3 to the second tape introduction path 4. Specifically, the tape moves from the first tape introduction path 3 to the second tape introduction path 4 by moving (rotating) the tape transition means 17 (lever member 17a) downward as described above. Since the transition preventing plate 31 rotates downward in conjunction with this operation, the transition is allowed. Thereafter, when the tape transfer means 17 (lever member 17a) is returned to the upper initial position, the transfer prevention plate 31 also returns to the initial position of FIG.

  The inverted L-shaped flexible member 22 (see FIG. 10) described above as the tape introducing portion 3a is also a “transition selection means” in the present invention. That is, the flexible member 22 is disposed between the first tape introduction path 3 and the second tape introduction path 4, and the tape is pushed down to move from the first tape introduction path 3 to the second tape introduction path 4. When shifting, the horizontal plate 22b is displaced in the direction of the arrow in FIG. On the other hand, after the tape moves from the first tape introduction path 3 to the second tape introduction path 4, the horizontal plate portion 22b is restored, so that the tape moves from the second tape introduction path 4 to the first tape introduction path 3. That hinders.

  In each embodiment described above, the first tape introduction path 3 is formed by the pair of support pieces 15a, but the first tape introduction path is not limited to this. Further, the first tape introduction path can be formed by only one support piece 15a. In addition, only one of the engaging portion 17b, the first engaging protrusion 17d, the second engaging protrusion 17e, the through holes 15c and 15d, the locking piece 15, the tapered surface, and the like, which are paired in the embodiment, is used. You can also

  In the embodiment, the second tape introduction path 4 is formed below the first tape introduction path 3. However, the second tape introduction path can be formed above the first tape introduction path. In this case, the tape can be transferred from the first tape introduction path to the second tape introduction path by moving (rotating) the lever member constituting the tape transfer means upward. It will be apparent to those skilled in the art that other various modifications are possible.

DESCRIPTION OF SYMBOLS 1 Tape feeder main body 2 Tape conveyance path 3 1st tape introduction path 3a Tape introduction part 4 2nd tape introduction path 4a Tape introduction part 5 1st sprocket 6 Intermediate gear 7 1st motor 8 2nd sprocket 9 2nd motor 10 3rd Sprocket 11 Third motor 12 Control unit 13 Component detection sensor 13a Light emitting unit 13b Light receiving unit 14 Tape end detection sensor 14a Lever 14b Sensor element 15 Support plate 15a Support piece 15b Notch 15c, 15d Through hole 15e Locking piece 16 Pin 17 Tape Transition means 17a Lever member 17b Engagement portion 17c Groove 17d First engagement protrusion 17d-1 Tapered surface 17e First engagement protrusion 17e-1 Tapered surface 18 Support shaft 19 Coil spring 20 Tape tip detection sensor 20a Lever 20b Sensor element 21 Coil spring 22 Flexible Material 22a vertical plate portion 22b transverse plate portions (tape introducing portion)
30 transition selection means 31 transition blocking plate 31
32 Torsion spring

Claims (10)

A tape feeder that feeds a component to a pickup position of a component mounting apparatus by pitch-feeding a tape holding the component,
As a tape introduction path for introducing a tape into a tape transport path leading to the pickup position, a first tape introduction path and a second tape introduction path are provided, and the first tape introduction path and the second tape introduction path are respectively Join the tape transport path at the downstream end,
A first tape feeding means for pitch feeding the tape is disposed in the tape conveyance path,
In the tape introduction path, the second tape feeding means for feeding the tape only to the first tape introduction path side is arranged,
A tape feeder having tape transfer means for transferring a tape being conveyed through the first tape introduction path to the second tape introduction path. The first tape introduction path is formed by a support piece that protrudes inwardly from at least one of the opposing surfaces of a pair of support plates that are arranged so that the interval between the opposing surfaces can be expanded or reduced,
The tape feeder according to claim 1, wherein the tape transfer means transfers the tape to the second tape introduction path by pressing the tape conveyed along the support piece. A locking piece projecting inward is formed on at least one opposing surface of the pair of support plates,
The said tape transfer means enlarges the space | interval between the opposing surfaces of a pair of said support plate by pressing the said locking piece, before pressing the tape conveyed along the said support piece. The tape feeder described.   The support piece has a taper surface, and when the tape transfer means presses the tape conveyed along the support piece, the tape is pressed while hitting the taper surface of the support piece. The tape feeder according to claim 2, wherein the distance between the opposing surfaces of the support plate is enlarged.   The tape transfer means is composed of a lever member that is movable in the vertical direction, and moves the tape transported in the first tape introduction path to the second tape introduction path by moving upward or downward from the initial position. The tape feeder according to any one of claims 1 to 4, which is transferred. The tape transfer means is composed of a lever member that is movable in the vertical direction, and moves the tape transported in the first tape introduction path to the second tape introduction path by moving upward or downward from the initial position. Migrate,
5. The tape feeder according to claim 2, wherein the lever member is provided with an engaging portion having a groove fitted into each end portion of the pair of support plates at the initial position.   The tape feeder according to claim 5 or 6, comprising biasing means for biasing the lever member to the initial position. A through hole or a recess into which an engagement protrusion formed on the lever member is fitted is formed on at least one opposing surface of the pair of support plates,
The engagement protrusion has a tapered surface, and the portion including the tapered surface in the initial position fits into the through hole or the recess, and when the lever member moves upward or downward from the initial position, The tape feeder according to any one of claims 5 to 7, wherein the tapered surface enlarges a distance between opposing surfaces of the pair of support plates.   The said 1st tape feeding means and the said 2nd tape feeding means are respectively comprised from the 1st sprocket and 2nd sprocket which mesh | engage in the hole provided in the said tape at fixed pitch, and convey the said tape. A tape feeder according to any one of the above.   The tape is allowed to move from the first tape introduction path to the second tape introduction path between the first tape introduction path and the second tape introduction path, but the tape is in the second tape introduction path. The tape feeder according to any one of claims 1 to 9, further comprising transition selection means for preventing transition from the first tape introduction path to the first tape introduction path.