Cover tape recovery system, cover tape recovery device, and cover tape recovery method

Abstract

To provide a cover tape recovery system capable of properly recovering a cover tape discharged from a feeder, a cover tape recovery device, and a cover tape recovery method.SOLUTION: A cover tape recovery device 30 for recovering a cover tape discharged from a feeder 5 includes: a guide part 31 for guiding the cover tape discharged from a cover tape discharge port 5c of the feeder 5 to the inside via a cover tape guide port 40; and a first air blow part 39 for blowing out air from the upstream side of the guide part 31 toward the downstream side. The guide part 31 has a gap 44 with a second width W2 that is narrower than a first width W1 of the cover tape guide port 40.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a cover tape recovery system, a cover tape recovery device, and a cover tape recovery method for recovering a cover tape peeled from a carrier tape.

Background Art

[0002] A tape feeder peels a cover tape from a carrier tape that houses components, exposes the components, and supplies them to a component mounting device (see, for example, Patent Document 1). Patent Document 1 discloses a cover tape recovery system in which the tape feeder cuts the peeled cover tape with a cutting unit built therein, discharges it from the tape feeder, and vacuum-sucks the discharged cut cover tape into a duct for recovery.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the prior art including Patent Document 1, since the tape feeder incorporates a cutting unit, the structure of the tape feeder becomes complicated and miniaturization is difficult. In addition, in order to recover the cut cover tapes discharged from a plurality of tape feeders into a duct, it is necessary to arrange suction ports for each tape feeder. Therefore, it has been difficult to realize a small-sized cover tape recovery system that can reliably recover the cover tape, and there has been room for further improvement.

[0005] Therefore, an object of the present invention is to provide a cover tape recovery system, a cover tape recovery device, and a cover tape recovery method that can appropriately recover the cover tape discharged from a feeder.

Means for Solving the Problems

[0006] The cover tape recovery system of the present invention conveys a carrier tape including a base tape for accommodating components and a cover tape attached to the base tape, peels the cover tape from the base tape, and supplies the components to a component mounting device. The cover tape recovery system includes a feeder and a cover tape recovery device. The feeder supplies the components to the component mounting device. The cover tape recovery device recovers the cover tape peeled from the base tape. The cover tape recovery device has an introduction portion that guides the cover tape discharged from a first opening of the feeder into the cover tape recovery device through a second opening, and a first air discharge portion that discharges air in a direction approaching from the upstream side to the downstream side of the introduction portion. The introduction portion has a gap having a second width that is narrower than a first width of the second opening in a cross-sectional view along the direction and the height direction.

[0007] The cover tape recovery device of the present invention is a cover tape recovery device that conveys a carrier tape including a base tape for accommodating components and a cover tape attached to the base tape, peels the cover tape from the base tape, and recovers the cover tape discharged from a feeder that supplies the components to a component mounting device. The cover tape recovery device includes an introduction portion that guides the cover tape discharged from a first opening of the feeder into the cover tape recovery device through a second opening, and a first air discharge portion that discharges air in a direction approaching from the upstream side to the downstream side of the introduction portion. The introduction portion has a gap having a second width that is narrower than a first width of the second opening in a cross-sectional view along the direction and the height direction.

[0008] The method for recovering a cover tape according to the present invention is a method for recovering a cover tape in the cover tape recovery device according to claim 17, and includes a step of introducing the cover tape discharged from the feeder upstream of the gap of the introduction portion, and a step of discharging the air from the first air discharge portion to introduce the cover tape downstream of the gap.

Effect of the Invention

[0009] According to the present invention, the cover tape discharged from the feeder can be appropriately recovered.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Embodiments for Carrying out the Invention

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The configurations, shapes, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the component mounting system, component mounting device, feeder, and cover tape recovery device. In the following, corresponding elements in all drawings are denoted by the same reference numerals, and redundant explanations are omitted. In FIG. 1 and in a part described later, as two axial directions orthogonal to each other in the horizontal plane, the X-axis in the substrate conveyance direction (left-right direction in FIG. 1) and the Y-axis orthogonal to the substrate conveyance direction (up-down direction in FIG. 1) are shown. Also, the Z-axis (up-down direction in FIG. 2) is shown as the height direction orthogonal to the horizontal plane.

[0012] First, referring to FIG. 1, the configuration of the component mounting system 1 will be described. The component mounting system 1 has a function of mounting components on a substrate to produce a mounted substrate. The component mounting system 1 is configured by arranging and connecting two component mounting devices M1 to M2 in parallel. The component mounting devices M1 to M2 are connected to the management device 3 via the communication network 2. Note that the number of component mounting devices M1 to M2 provided in the component mounting system 1 is not limited to two, and may be one or three or more. Component supply units 4 are provided in front of and behind the component mounting devices M1 to M2, respectively. A cart 6 with a plurality of feeders 5 (tape feeders) mounted side by side on the upper surface is detachably coupled to the component supply unit 4.

[0013] Next, referring to FIG. 2, the configuration of the component mounting devices M1 to M2 will be described. The component mounting devices M1 to M2 have a function of mounting components on a substrate. A substrate transfer mechanism 8 provided on the upper surface of the base 7 transfers, positions, and holds the substrate 9 along the X-axis. Above the substrate transfer mechanism 8, a mounting head 11 that moves in the horizontal directions (X-axis direction, Y-axis direction) by a head movement mechanism (not shown) is installed in a space surrounded by the main body cover 10.

[0014] On the upper surface of the cart body portion 6a of the cart 6 coupled to the base 7 on the side of the substrate transfer mechanism 8, a feeder base 12 is installed. A plurality of feeders 5 are attached side by side along the X-axis to the feeder base 12. A reel 14 around which a carrier tape 13 for storing components supplied to the component mounting devices M1 to M2 is wound is rotatably placed below the feeders 5 on the rear side of the cart 6. The feeder 5 conveys the carrier tape 13 stored in the reel 14 in the tape feed direction and supplies the components to the component pickup position 5d (see FIG. 3) by the mounting head 11.

[0015] In FIGS. 1 and 2, a rotation support portion 15 for supporting the cover tape recovery device 30 is installed on the upper surface of the carriage body portion 6a of the carriage 6. The rotation support portion 15 rotatably supports the cover tape recovery device 30 around a rotation axis in the vertical direction (Z-axis direction) (arrow a in FIG. 1). The cover tape recovery device 30 rotated to the operating position recovers the cover tape 13b peeled off and discharged from the base tape 13a that stores the components of the carrier tape 13 in the feeder 5 (see FIG. 3). Further, the cover tape recovery device 30 is rotated to a retracted position that does not interfere with the work during the replacement of the feeder 5 or the replenishment of the carrier tape 13 to the feeder 5.

[0016] The component mounting devices M1 to M2 include a substrate transfer mechanism 8, a mounting head 11, and a main body control unit 16 that controls the head movement mechanism. The main body control unit 16 transmits a component supply command to the feeder 5 to supply components to the component extraction position 5d. Further, the main body control unit 16 controls the mounting head 11 and the head movement mechanism to execute a component mounting operation in which the components supplied to the component extraction position 5d are taken out by the mounting head 11 and transferred and mounted at the mounting point of the substrate 9 held by the substrate transfer mechanism 8.

[0017] Next, with reference to FIG. 3, the configurations of the feeder 5 (tape feeder) and the carriage 6 will be described. Inside the feeder 5, a first conveyance path 17 is provided that extends from an insertion port 5a that opens rearward to a base tape discharge port 5b that opens forward. The carrier tape 13 inserted into the insertion port 5a is conveyed forward along the first conveyance path 17 by a loading portion 18 disposed near the insertion port 5a and discharged from the base tape discharge port 5b by a tape conveyance portion 19 disposed near the base tape discharge port 5b. In the first conveyance path 17, a cover tape peeling portion 20 is disposed between the loading portion 18 and the tape conveyance portion 19. Above the insertion port 5a and behind the feeder 5, a cover tape discharge port 5c (first opening) is open.

[0018] Inside the feeder 5, a second conveyance path 21 is provided that leads from the cover tape peeling section 20 to the cover tape discharge port 5c. The carrier tape 13 conveyed along the first conveyance path 17 has the cover tape 13b peeled off from the base tape 13a by the cover tape peeling section 20. The peeled cover tape 13b is conveyed rearward along the second conveyance path 21 by the cover tape peeling section 20 and discharged from the cover tape discharge port 5c. The base tape 13a from which the cover tape 13b has been peeled is conveyed to the component take-out position 5d in front of the upper part of the feeder 5, and the component is taken out by the mounting head 11. The base tape 13a from which the component has been taken out is discharged from the base tape discharge port 5b.

[0019] In FIG. 3, inside the cart body portion 6a of the cart 6, a cart control section 22 and an air valve group 23 including a plurality of air valves controlled by the cart control section 22 are installed. Also, a signal connection section 6b and an air connection section 6c are installed in front of the cart body portion 6a at a position connected to the base 7. When the cart 6 is mounted on the base 7, the cart control section 22 is connected to the main body control section 16 of the component mounting devices M1 to M2 via the signal connection section 6b. Also, when the cart 6 is mounted on the base 7, it is connected to an air supply device 24 that supplies air (compressed air) via the air connection section 6c.

[0020] Inside the feeder 5, a feeder control section 5e that controls each part of the feeder 5 is installed. When the feeder 5 is mounted on the feeder base 12 of the cart 6, the feeder control section 5e is connected to the cart control section 22 via a feeder connection section 5f provided on the feeder 5. As a result, the feeder control section 5e can transmit and receive signals with the main body control section 16 of the component mounting devices M1 to M2. An operation unit 5g for performing operations by the operator and giving notifications to the operator is arranged on the upper surface at the rear of the feeder 5.

[0021] In this way, the feeder 5 conveys a carrier tape 13 including a base tape 13a for accommodating components and a cover tape 13b attached to the base tape 13a, peels the cover tape 13b from the base tape 13a, and supplies the components to the component mounting devices M1 to M2.

[0022] In FIG. 3, a detachable recovery container 25 is mounted on the lower part of the cart main body 6a. Further, inside the cart main body 6a, a chute portion 26 for guiding the base tape 13a from which components have been removed in the feeder 5 to the recovery container 25 is installed. In the chute portion 26, a base tape cutting portion 27 that operates by air supplied through an air valve provided in the air valve group 23 and cuts the base tape 13a is installed. The base tapes 13a discharged from the plurality of feeders 5 mounted on the cart 6 are cut to a predetermined length by the base tape cutting portion 27, fall to the recovery container 25, and are recovered.

[0023] Inside the cart main body 6a, a recovery hose 28 for guiding the cut cover tape 13b discharged from the cover tape recovery device 30 to the recovery container 25 is installed. One end of the recovery hose 28 is connected to a duct 49 (see FIG. 4) of the cover tape recovery device 30 arranged on the cart 6. Further, inside the cart main body 6a, a vacuum generating portion 29 that generates a vacuum by air supplied through an air valve provided in the air valve group 23 is installed. The vacuum generating portion 29 is connected in communication to the cover tape recovery device 30, generates an air suction force (vacuum), sucks the cut cover tape 13b through the recovery hose 28, and discharges it to the recovery container 25.

[0024] Next, with reference to FIGS. 4 to 8, the configuration of the cover tape recovery device 30 installed on the carriage 6 and recovering the cover tape 13b peeled off from the base tape 13a and discharged in the feeder 5 will be described. FIG. 5 is a BB cross-section (FIG. 4(a)) of the cover tape recovery device 30 viewed from the direction of the X-axis. FIG. 7 is an enlarged view of the portion indicated by the rectangle C in FIG. 5. In FIG. 5, in the state of being installed on the carriage 6, the side facing the cover tape discharge port 5c (first opening) of the feeder 5 is referred to as the upstream side of the cover tape recovery device 30, and the opposite side is referred to as the downstream side. FIG. 6 is a plan view of the cover tape recovery device 30 viewed from above.

[0025] In FIG. 5, the cover tape recovery device 30 includes an introduction part 31 that guides the cover tape 13b discharged from the cover tape discharge port 5c (first opening) of the feeder 5 into the interior of the cover tape recovery device 30 from the upstream side to the downstream side, a cover tape cutting part 32 that cuts the cover tape 13b that has passed through the introduction part 31, and a recovery part 33 that recovers the cover tape 13b cut by the cover tape cutting part 32. A part of the introduction part 31, the cover tape cutting part 32, and the recovery part 33 is arranged inside the upstream housing 34. The recovery part 33 is configured to include a downstream housing 35.

[0026] In FIGS. 4 to 7, the bottom plate 36 of the upstream housing 34 and the downstream housing 35 has an extension part 36a that extends forward (toward the feeder 5 side) from the front panel 34a on the upstream side of the upstream housing 34. On both side ends of the extension part 36a of the bottom plate 36, a right extension plate 37 and a left extension plate 38 that extend upward from the bottom plate 36 are arranged. The left and right extension plates 37, 38 prevent the cover tape 13b discharged from the cover tape discharge port 5c (first opening) to the introduction part 31 from jumping out of the cover tape recovery device 30 from the left and right ends of the extension part 36a.

[0027] In front of the upper surface of the extension part 36a, a first air discharge part 39 that discharges air in a direction (Y-axis direction) approaching from the upstream side to the downstream side of the introduction part 31 is arranged. Air is supplied to the first air discharge part 39 via an air valve included in the air valve group 23. In this example, as shown in FIG. 6, the first air discharge part 39 has a configuration in which a plurality of air discharge ports 39a for discharging air are formed along the X-axis in a square or substantially square pipe extending along the X-axis. The air discharge ports 39a are formed to discharge air to the downstream side.

[0028] In FIGS. 5 and 7, the upper surface 39b of the first air discharge part 39 is formed to have a height position H2 lower than the height position H1 of the lower end 5h of the cover tape discharge port 5c (first opening). The space surrounded by the lower end 34b of the front panel 34a of the upstream housing 34, the downstream end 39c of the upper surface 39b of the first air discharge part 39, and the left and right extension plates 37, 38 constitutes a cover tape inlet 40 (second opening) through which the cover tape 13b discharged from the cover tape discharge port 5c enters the inside of the cover tape recovery device 30.

[0029] Thus, the height position H2 of the lower end 34b of the second opening (cover tape inlet 40) is lower than the height position H1 of the lower end 5h of the first opening (cover tape discharge port 5c). Thereby, the cover tape 13b discharged from the feeder 5 can be appropriately guided into the inside of the cover tape recovery device 30.

[0030] In FIGS. 5 and 7, on the upstream housing 34 on the downstream side of the cover tape inlet 40, a ceiling plate 41 connected to the lower end 34b (the upper end of the cover tape inlet 40) of the front panel 34a of the upstream housing 34 and extending along the X-axis is arranged. In this example, the ceiling plate 41 is integrally formed with the upstream housing 34. The ceiling plate 41 is configured to include a ceiling inclined part 41a, an intermediate part 41b, and a horizontal part 41c from the upstream side to the downstream side.

[0031] The ceiling inclined portion 41a is inclined obliquely downward from the upper end of the cover tape inlet 40 toward the downstream side. The intermediate portion 41b has a shape that rises substantially vertically from the downstream end of the ceiling inclined portion 41a, and a plurality of through holes 41d penetrating the ceiling plate 41 are formed along the X-axis. Air introduced from the outside of the upstream housing 34 is ejected from the through holes 41d along with the flow of the air ejected by the first air ejection portion 39. The horizontal portion 41c has a shape that extends substantially horizontally from the upper end of the intermediate portion 41b toward the downstream side, and the downstream end is connected to a partition plate 48 that partitions the introduction portion 31 and the cover tape cutting portion 32.

[0032] In FIGS. 5 and 7, on the upper surface of the bottom plate 36, in the vicinity below the intermediate portion 41b and the horizontal portion 41c of the ceiling plate 41, a fixed blade holding member 42 extending along the X-axis is disposed. The fixed blade holding member 42 holds a fixed blade 46 on the downstream side. Further, the fixed blade holding member 42 is formed with an introduction inclined portion 42a that rises steeply obliquely upward from the upper surface of the bottom plate 36 on the upstream side, and an intermediate inclined portion 42b that rises gently obliquely upward from the vicinity below the intermediate portion 41b of the ceiling plate 41. Further, the upper surface of the fixed blade 46 fixed to the fixed blade holding member 42 constitutes a downstream inclined portion 46a that rises gently obliquely upward continuous with the intermediate inclined portion 42b.

[0033] The region surrounded by the upper ceiling plate 41 (ceiling inclined portion 41a, intermediate portion 41b, horizontal portion 41c), the lower surface 48a of the partition plate 48, the first air ejection portion 39 of the bottom plate 36 below, and the fixed blade holding member 42, the introduction inclined portion 42a and the intermediate inclined portion 42b of the fixed blade holding member 42, the downstream inclined portion 46a of the fixed blade 46, and the side member 34c on the right side and the side member 34d on the left side of the upstream housing 34 (see FIG. 6) constitutes the introduction flow path 43 (flow path of the introduction portion) of the introduction portion 31.

[0034] In FIGS. 5 and 7, the space formed between the vicinity of the lower end of the middle portion 41b of the ceiling plate 41 and the vicinity of the boundary between the introduction inclined portion 42a of the fixed blade holding member 42 and the middle inclined portion 42b constitutes the narrowest gap 44 in the introduction flow path 43. That is, the introduction portion 31 has a gap 44 having a second width W2 that is narrower than the first width W1 of the cover tape inlet 40 (second opening) in a plan view (in the YZ plane) along the direction (Y-axis direction) approaching from the upstream side to the downstream side and the height direction (Z-axis direction) in the middle of the introduction flow path 43 (the flow path of the introduction portion). By making the cross-sectional area of the fluid in the gap 44 smaller than the cross-sectional area of the fluid at the cover tape inlet 40, the flow velocity of the air discharged from the first air discharge portion 39 downstream becomes faster in the gap 44 due to the Venturi effect. As a result, a force is generated to suck the cover tape 13b near the first air discharge portion 39 to the downstream side of the introduction flow path 43.

[0035] Further, the second width W2 is a width through which an operator's finger cannot enter the gap 44. Thereby, it is possible to prevent an accident in which the operator's finger is injured by the movable blade 45 and the fixed blade 46 that cut the cover tape 13b at the cover tape cutting portion 32.

[0036] Here, in the introduction flow path 43, the upstream side of the gap 44 is defined as the first region R1, and the downstream side is defined as the second region R2. That is, the introduction portion 31 has a first region R1 located upstream of the gap 44 and a second region R2 located downstream of the gap 44. The introduction inclined portion 42a (a part of the bottom surface) of the fixed blade holding member 42 in the first region R1 extends so as to be inclined toward the gap 44. Further, the second region R2 extends downstream along the direction (Y-axis direction) in which the cover tape 13b is discharged from the cover tape discharge port 5c (first opening). Thereby, the cover tape 13b discharged from the cover tape discharge port 5c can be smoothly guided into the inside of the introduction portion 31 through the cover tape inlet 40 (second opening).

[0037] In addition, air introduced from the outside of the upstream housing 34 is ejected from a plurality of through holes 41d formed in the middle portion 41b of the ceiling plate 41 facing the second region R2 along with the flow of the air ejected by the first air ejection portion 39. That is, the ceiling plate 41 is provided with through holes 41d for guiding the air introduced from the outside along with the inflow of the air ejected by the first air ejection portion 39 to the second region R2. By adding the air ejected from the through holes 41d to the air ejected from the first air ejection portion 39, the cover tape 13b that has passed through the gap 44 is efficiently guided downstream.

[0038] In FIG. 5, the cover tape cutting portion 32 has a movable blade 45 and a fixed blade 46 for cutting the cover tape 13b. In this example, the fixed blade 46 has a shape extending along the X-axis and is fixed to the fixed blade holding member 42. The movable blade 45 also has a shape extending along the X-axis and is disposed above the fixed blade 46 so as to be movable up and down (in the Z-axis direction).

[0039] Inside the upstream housing 34 and upstream of the movable blade 45, a drive portion 47 including a cylinder or the like is disposed with a partition plate 48 interposed therebetween. The movable blade 45 is connected to the drive portion 47 through a through groove (not shown) formed in the partition plate 48. The movable blade 45 is driven by the drive portion 47 to move up and down. In the cover tape cutting portion 32, when the cover tape 13b is positioned between the movable blade 45 and the fixed blade 46, the movable blade 45 descends and approaches the fixed blade 46, thereby cutting the cover tape 13b.

[0040] In FIGS. 4 to 6, on the upper surface plate 35a of the downstream housing 35 that constitutes the recovery unit 33, a recovery port 35b penetrating the upper surface plate 35a is open at the center in the X-axis direction and on the downstream side in the Y-axis direction. One end of a duct 49 to which a recovery hose 28 is connected is connected to the recovery port 35b. One end of the duct 49 has a fulcrum P0 along the X-axis above the recovery port 35b, and is a flexible joint that allows the upper part of the duct 49 to rotate in the Y-axis direction about the fulcrum P0 (arrow d in FIG. 8). In the cover tape recovery device 30, in the state of the first position P1 where the duct 49 faces the vertical direction, the cover tape 13b cut by the cover tape cutting unit 32 is recovered through the recovery port 35b.

[0041] FIG. 8 shows a state where the duct 49 has rotated to the second position P2 where it has rotated maximally downstream about the fulcrum P0. Thus, the recovery unit 33 for recovering the cover tape 13b cut by the cover tape cutting unit 32 has a duct 49 that can rotate about the fulcrum P0 between the first position P1 and the second position P2. When the duct 49 is in the first position P1 (FIG. 5), the operation unit 5g of the feeder 5 is hidden by the duct 49 and the recovery hose 28 connected to the duct 49 as seen from an operator working behind the carriage 6, so the operation of the operation unit 5g is obstructed. On the other hand, when the duct 49 is in the first position P1, the duct 49 and the recovery hose 28 connected to the duct 49 do not hide the insertion port 5a of the feeder 5 (FIG. 3), so the insertion operation of the carrier tape 13 is not obstructed.

[0042] When the duct 49 is in the second position P2, the insertion port 5a of the feeder 5 is hidden by the duct 49 and the recovery hose 28 connected to the duct 49 as seen from an operator working behind the carriage 6, so the insertion operation of the carrier tape 13 is obstructed. On the other hand, when the duct 49 is in the second position P2, the duct 49 and the recovery hose 28 connected to the duct 49 do not hide the operation unit 5g of the feeder 5, so the operation of the operation unit 5g is not obstructed.

[0043] That is, an operator working behind the carriage 6 operates the operation unit 5g of the feeder 5 with the duct 49 in the first position P1. Further, the operator inserts the carrier tape 13 into the insertion port 5a of the feeder 5 with the duct 49 in the second position P2. In this way, the first position P1 is a position where a part (insertion port 5a) of the feeder 5 is visible, and the second position P2 is a position where another part (operation unit 5g) of the feeder 5 is visible.

[0044] In FIGS. 4 to 6, exhaust members 50 are respectively arranged on the downstream surface plate 35c on the right side and the downstream surface plate 35d on the left side of the downstream housing 35. The exhaust member 50 is formed with a plurality of downstream surface through holes 50a having a size through which air can pass but through which the cut cover tape 13b cannot pass. An upper surface exhaust member 51 formed with a plurality of upper surface through holes 51a having a size through which air can pass but through which the cut cover tape 13b cannot pass is arranged on the upper surface plate 35a of the downstream housing 35. The air flowing in from the introduction passage 43 is discharged to the outside through the downstream surface through holes 50a of the exhaust member 50 and the upper surface through holes 51a of the upper surface exhaust member 51.

[0045] Next, with reference to FIGS. 9 to 11, a method for recovering the cover tape 13b in the cover tape recovery device 30 will be described. FIG. 9(a) shows a state in which the carrier tape 13 is inserted into the feeder 5, the cover tape 13b is peeled off from the base tape 13a inside the feeder 5, and is discharged from the cover tape discharge port 5c (first opening). The tip of the cover tape 13b discharged from the cover tape discharge port 5c moves onto the extension portion 36a of the cover tape recovery device 30.

[0046] In FIG. 9(a), subsequently, when the cover tape 13b is continuously fed out from the feeder 5, the tip of the cover tape 13b enters the first region R1 of the introduction part 31 from the cover tape introduction port 40 (second opening). That is, the tip of the cover tape 13b discharged from the feeder 5 is introduced into the first region R1 upstream of the gap 44 of the introduction part 31 (upstream introduction step). When the cover tape 13b is further fed out from the feeder 5, due to the curl of the cover tape 13b, the cover tape 13b bulges and solidifies in a spiral shape in the first region R1 and becomes larger than the second width W2, so it cannot enter the gap 44.

[0047] In FIG. 9(b), when the carriage control unit 22 controls the air valve group 23 and air is supplied from the air supply device 24 to the first air discharge part 39, air is discharged from the plurality of air discharge ports 39a of the first air discharge part 39 toward the downstream side of the introduction part 31. Then, due to the suction force from the gap 44 to the downstream second region R2 generated by the air flow, the air flow discharged from the plurality of air discharge ports 39a, and the air flow discharged from the plurality of through holes 41d of the ceiling plate 41, the spiral cover tape 13b is crushed or the spiral is released and becomes smaller than the second width W2 and passes through the gap 44 and is guided to the downstream second region R2. In this way, the cover tape recovery device 30 discharges air from the first air discharge part 39 to introduce the tip of the cover tape 13b into the second region R2 downstream of the gap 44 (downstream introduction step).

[0048] In FIG. 10(a), when the tip of the cover tape 13b enters the second region R2 from the gap 44, the carriage control unit 22 stops discharging air from the first air discharge part 39. When the cover tape 13b is further fed out from the feeder 5 (arrow e), the cover tape 13b is fed out into the cover tape recovery device 30 (cover tape discharge step).

[0049] In FIG. 10(b), when a cover tape 13b of a predetermined length is fed out from the feeder 5, the carriage control unit 22 causes the first air discharge unit 39 to discharge air for a predetermined time. As a result, the leading end of the cover tape 13b is guided to the recovery unit 33 beyond the cover tape cutting unit 32. Also, the cover tape 13b staying near the first region R1 is also sent downstream (cover tape feeding step).

[0050] In FIG. 11(a), when the carriage control unit 22 stops the discharge of air from the first air discharge unit 39, it controls the drive unit 47 to lower the movable blade 45, and cuts the cover tape 13b with the movable blade 45 and the fixed blade 46 (cover tape cutting step). That is, the cover tape cutting unit 32 cuts the cover tape 13b that has passed through the introduction unit 31. Also, the recovery unit 33 is closed by the lowered movable blade 45.

[0051] In FIG. 11(b), next, the carriage control unit 22 causes the vacuum generation unit 29 to generate a suction force for a predetermined time. As a result, the cut cover tape 13b is sucked up from the recovery port 35b into the duct 49, and further recovered into the recovery container 25 through the recovery hose 28 (cover tape recovery step). Next, the carriage control unit 22 raises the movable blade 45, and executes the cover tape discharge step, the cover tape feeding step, the cover tape cutting step, and the cover tape recovery step.

[0052] Next, with reference to FIG. 12, an example of the cover tape 13b having a warp due to the warping tendency will be described. In FIG. 12(a), due to the warping tendency, the cover tape 13b is curled in a concave shape. In FIG. 12(b), due to the warping tendency, the cover tape 13b is curled in a spiral shape. The cover tape 13b having the warping tendency becomes a curled (swollen) shape that is effectively thick when discharged from the cover tape discharge port 5c (first opening) of the feeder 5. That is, the effective thickness T of the cover tape 13b curled due to the warping tendency is larger than the thickness of the cover tape 13b that is not curled and has no warping tendency.

[0053] Next, with reference to FIG. 13, the process of recovering the tip of the curled cover tape 13b by the cover tape recovery device 30 will be described. In FIG. 13(a), the tip of the curled cover tape 13b is discharged from the cover tape discharge port 5c (the first opening) and enters the first region R1 of the introduction part 31 from the cover tape introduction port 40 (the second opening) (upstream side introduction process). However, since the effective thickness T of the cover tape 13b swollen by the curling is larger than the second width W2, it cannot enter the gap 44.

[0054] In FIG. 13(b), when air is discharged from the plurality of air discharge ports 39a of the first air discharge part 39 toward the downstream side of the introduction part 31, a suction force is generated from the gap 44 to the second region R2 on the downstream side, and the curled cover tape 13b is crushed or flattened so that the effective thickness T becomes smaller than the second width W2 and can enter the second region R2 from the gap 44 (downstream side introduction process). In this way, the posture of the tip of the cover tape 13b in the first region R1 is changed so that the tip of the cover tape 13b in a spiral shape, concave shape, or helical shape passes through the gap 44 by the air discharged by the first air discharge part 39.

[0055] As described above, after performing the upstream side introduction process and the downstream side introduction process to introduce the tip of the cover tape 13b into the second region R2 on the downstream side of the gap 44, by performing the cover tape discharge process, the cover tape feeding process, the cover tape cutting process, and the cover tape recovery process, the cover tape 13b with curling discharged from the feeder 5 can be appropriately recovered.

[0056] Note that since the round cover tape 13b has a higher hardness than the non-round cover tape 13b, even if the tip of the cover tape 13b is discharged from the cover tape discharge port 5c and there is no support below, it will not droop downward. Therefore, even if the height position H2 of the lower end 34b of the cover tape inlet 40 is slightly (0 to several millimeters) higher than the height position H1 of the lower end 5h of the cover tape discharge port 5c, the round cover tape 13b can be transferred to the cover tape recovery device 30. That is, the height position H2 of the lower end 34b of the second opening (cover tape inlet 40) only needs to be lower than the height position (H1 + T) obtained by adding the effective thickness T of the round cover tape 13b discharged from the first opening to the height position H1 of the lower end 5h of the first opening (cover tape discharge port 5c).

[0057] Next, with reference to FIG. 14, a second embodiment of the cover tape recovery device (hereinafter simply referred to as "cover tape recovery device 30A") will be described. Hereinafter, the same parts as those of the cover tape recovery device 30 are denoted by the same reference numerals, and detailed descriptions thereof are omitted. The cover tape recovery device 30A is different from the cover tape recovery device 30 in that the first air discharge portion 39A is provided at a height position H3 higher than the cover tape 13b introduced into the introduction portion 31A. The first air discharge portion 39A discharges air from a plurality of air discharge ports 39Aa toward the downstream side. A Venturi effect can be obtained in the same manner as in the cover tape recovery device 30 by the air discharged from the first air discharge portion 39A obliquely upward of the cover tape 13b toward the gap 44.

[0058] Next, with reference to FIG. 15, a third embodiment of the cover tape recovery device (hereinafter simply referred to as "cover tape recovery device 30B") will be described. The cover tape recovery device 30B is different from the cover tape recovery device 30 in that it has a second air discharge portion 52 that discharges air in the direction from the upstream side to the downstream side through the through hole 41d of the ceiling plate 41 into the second region R2.

[0059] Air is supplied from the air supply device 24 to the second air discharge unit 52 through the air valves included in the air valve group 23. The second air discharge unit 52 ejects air downstream from a plurality of second air discharge ports 52a. The air discharged from the second air discharge ports 52a is discharged into the second region R2 through the through holes 41d. The cover tape 13b that has passed through the gap 44 is guided downstream by the air ejected from the second air discharge unit 52.

[0060] Next, with reference to FIG. 16, a fourth embodiment of the cover tape recovery device (hereinafter simply referred to as "cover tape recovery device 30C") will be described. In the cover tape recovery device 30C, the shape of the ceiling plate 41C and the shape of the fixed blade holding member 42C are different from those of the cover tape recovery device 30. Specifically, the intermediate portion 41Cb of the ceiling plate 41C extends upwardly inclined from the downstream end of the ceiling inclined portion 41Ca toward the downstream side and is connected to the horizontal portion 41Cc at the uppermost part. A plurality of through holes 41Cd are formed in the intermediate portion 41Cb along the X-axis. The inclination of the introduction inclined portion 42Ca of the fixed blade holding member 42C is substantially the same as that of the intermediate portion 41Cb of the ceiling plate 41C and is connected to the intermediate inclined portion 42Cb at the uppermost part.

[0061] The space formed between the intermediate portion 41Cb of the ceiling plate 41C and the introduction inclined portion 42Ca of the fixed blade holding member 42C, which are arranged substantially in parallel, constitutes a narrow flow path R3 in which narrow gaps 44C are continuous. The narrow flow path R3 has a function of connecting the upstream first region R1 and the downstream second region R2. The first region R1, the narrow flow path R3, and the second region R2 constitute an introduction flow path 43C for guiding the cover tape 13b to the cover tape cutting portion 32C. The width W3 of the narrow flow path R3 in a plan view (in the YZ plane) along the direction (Y-axis direction) approaching from the upstream side to the downstream side and the height direction (Z-axis direction) is narrower than the first width W1 of the cover tape inlet 40 (second opening). Thus, the introduction portion 31C has a narrow flow path R3 in which narrow gaps 44C with a width W3 narrower than the first width W1 continuously extend obliquely upward toward the downstream side.

[0062] In FIG. 16, when air is discharged from the first air discharge portion 39 to the downstream side, a force is generated that sucks the cover tape 13b in the first region R1 into the narrow flow path R3. Further, the narrow and obliquely extending narrow flow path R3 prevents the operator's finger from being inserted into the cover tape cutting portion 32C.

[0063] Next, referring to FIG. 17, a fifth embodiment of the cover tape recovery device (hereinafter simply referred to as "cover tape recovery device 30D") will be described. The cover tape recovery device 30D is different from the cover tape recovery device 30 in that it has a protrusion 53 as a fall prevention portion that prevents the tip of the cover tape 13b from falling into the space G between the feeder 5 and the introduction portion 31D when the cover tape 13b is transferred from the feeder 5 to the cover tape recovery device 30D.

[0064] The protrusion 53 (fall prevention portion) is formed of a flexible material such as sponge or rubber. The protrusion 53 is provided at a position lower than the cover tape inlet 40D (second opening) and extends toward the feeder 5 side. When the cover tape recovery device 30D is rotated to the operating position, the space G is filled by the protrusion 53. The upper surface 53a of the protrusion 53 is flat and supports the tip of the cover tape 13b discharged from the cover tape discharge port 5c (first opening) of the feeder 5.

[0065] Next, referring to FIG. 17, the method of recovering the cover tape 13b in the cover tape recovery device 30D will be described. When the cover tape 13b discharged from the cover tape discharge port 5c (first opening) of the feeder 5 enters the introduction portion 31D, the cover tape 13b with a warp or the like has the tip of the cover tape 13b abut against the protrusion 53 (fall prevention portion). Further, when the cover tape 13b is discharged from the cover tape discharge port 5c, the cover tape 13b upstream of the tip of the cover tape 13b enters the introduction portion 31D and is guided into the cover tape recovery device 30D (arrow f).

[0066] Next, by executing the upstream introduction process, the downstream introduction process, the cover tape discharge process, the cover tape feeding process, the cover tape cutting process, and the cover tape recovery process, it is possible to prevent the warped cover tape 13b discharged from the feeder 5 from falling downward from the empty space G, and it can be appropriately recovered by the cover tape recovery device 30D.

[0067] Next, referring to FIG. 18, a sixth embodiment of the cover tape recovery device (hereinafter, simply referred to as "cover tape recovery device 30E") will be described. The cover tape recovery device 30E is different from the cover tape recovery device 30D in that it has a protrusion 54 provided with a recess 54a for supporting the tip of the cover tape 13b discharged from the cover tape discharge port 5c as a fall prevention portion.

[0068] Next, referring to FIG. 19, a seventh embodiment of the cover tape recovery device (hereinafter, simply referred to as "cover tape recovery device 30F") will be described. The cover tape recovery device 30F has a protrusion 55 formed with an inclined surface portion 55a that slopes downward in an oblique direction toward the feeder 5 on the upper surface. On the upper surface of the first air discharge portion 39F disposed in the introduction portion 31F, an inclined surface portion 39Fa that is continuous with the inclined surface portion 55a of the protrusion 55 is formed.

[0069] The inclined surface portion 39Fa of the first air discharge portion 39F and the inclined surface portion 55a of the protrusion 55 form an inclined surface that extends obliquely upward inside the introduction portion 31F. The tip of the cover tape 13b discharged from the cover tape discharge port 5c contacts the inclined surface (inclined surface portion 39Fa, inclined surface portion 55a). In this way, the first air discharge portion 39F and the protrusion 55 constitute a fall prevention portion having an inclined surface (inclined surface portion 39Fa, inclined surface portion 55a) that extends obliquely upward inside the introduction portion 31F.

[0070] As described above, the component mounting system 1 of the present embodiment is a cover tape recovery system including a feeder 5 that supplies components to the component mounting devices M1 to M2, and a cover tape recovery device 30 that recovers the cover tape 13b peeled from the base tape 13a.

[0071] The cover tape recovery device 30 has an introduction part 31 that guides the cover tape 13b discharged from the first opening (cover tape discharge port 5c) of the feeder 5 into the interior of the cover tape recovery device 30 through the second opening (cover tape introduction port 40), and a first air discharge part 39 that discharges air in a direction approaching from the upstream side to the downstream side of the introduction part 31. And the introduction part 31 has a gap 44 having a second width W2 that is narrower than the first width W1 of the second opening. Thereby, the cover tape 13b discharged from the feeder 5 can be appropriately recovered.

Industrial Applicability

[0072] The cover tape recovery system, cover tape recovery device, and cover tape recovery method of the present invention have the effect of being able to appropriately recover the cover tape discharged from the feeder, and are useful in the field of mounting components on a substrate.

Explanation of Signs

[0073] 1 Component mounting system (cover tape recovery system) 5 Feeder 5c Cover tape discharge port (first opening) 13 Carrier tape 13a Base tape 13b Cover tape 30, 30A to 30F Cover tape recovery device 31, 31A, 31C to 31F Introduction part 32, 32C Cover tape cutting part 33 Recovery part 39, 39A, 39D to 39F First air discharge part 40, 40D Cover tape introduction port (second opening) 41d, 41Cd Through-hole 44, 44C Gap 49 Duct 52 Second air discharge part M1 to M2 Component mounting device P0 Fulcrum R1 First region R2 Second region R3 Narrow flow path T Effective thickness W1 First width W2 Second width

Claims

1. A feeder that conveys a carrier tape including a base tape for accommodating components and a cover tape attached to the base tape, and peels the cover tape from the base tape to supply the components to a component mounting device, and a cover tape recovery device that recovers the cover tape peeled from the base tape, wherein the cover tape recovery device has an introduction part that guides the cover tape discharged from a first opening of the feeder into the cover tape recovery device through a second opening, and a first air discharge part that discharges air in a direction approaching from the upstream side to the downstream side of the introduction part, and the introduction part has a gap having a second width narrower than a first width of the second opening in a cross-sectional view along the direction and the height direction, a cover tape recovery system.

2. The cover tape recovery system according to claim 1, wherein a height position of a lower end of the second opening is lower than a height position of a lower end of the first opening, or lower than a height position obtained by adding an effective thickness of the rounded cover tape discharged from the first opening to the height position of the lower end of the first opening.

3. The cover tape recovery system according to claim 1, wherein the first air discharge part is provided at a height position lower than a height position of a lower end of the first opening, or at a height position higher than the cover tape guided to the introduction part.

4. The cover tape recovery system according to claim 1, wherein a shape of a pipe of the first air discharge part is a square shape or a substantially square shape.

5. The introduction part has the gap in a middle of a flow path of the introduction part, and the cover tape is guided to the downstream side through the gap, the cover tape recovery system according to claim 1.

6. The introduction part has a first region located on an upstream side of the gap, and in the first region, an attitude of a tip part of the cover tape is changed by air discharged by the first air discharge part so that the tip part of the cover tape passes through the gap, the cover tape recovery system according to claim 5.

7. The cover tape recovery system according to claim 6, wherein a part of a bottom surface in the first region extends so as to incline toward the gap.

8. The cover tape recovery system according to claim 6, wherein the introduction part has a narrow flow path in which gaps having a width narrower than the first width in a cross-sectional view along the direction and the height direction are continuous.

9. The narrow flow path extends so as to incline toward the downstream side, the cover tape recovery system according to claim 8.

10. The introduction part has a second region located on the downstream side of the gap, The second region extends toward the downstream side along the direction in which the cover tape is discharged from the first opening, the cover tape recovery system according to claim 6.

11. A through hole is provided for guiding air introduced from the outside along with the inflow of the air discharged by the first air discharge part to the second region, the cover tape recovery system according to claim 10.

12. The cover tape recovery device has a second air discharge part that discharges air in a direction approaching from the upstream side to the downstream side to the second region, the cover tape recovery system according to claim 10.

13. The second width is a width through which an operator's finger cannot enter the gap, the cover tape recovery system according to any one of claims 1 to 12.

14. The cover tape recovery device has a cover tape cutting part that cuts the cover tape that has passed through the introduction part, the cover tape recovery system according to any one of claims 1 to 12.

15. The cover tape recovery device has a recovery part that recovers the cover tape cut by the cutting part, The recovery part has a duct that is rotatable about a fulcrum between a first position and a second position, the cover tape recovery system according to claim 14.

16. The first position is a position where a part of the feeder is visible, The second position is a position where another part of the feeder is visible, the cover tape recovery system according to claim 15.

17. A cover tape recovery device that conveys a carrier tape including a base tape for accommodating parts and a cover tape attached to the base tape, peels the cover tape from the base tape, and recovers the cover tape discharged from a feeder that supplies the parts to a component mounting device, An introduction part that guides the cover tape discharged from the first opening of the feeder into the cover tape recovery device through a second opening, A first air discharge part that discharges air in a direction approaching from the upstream side to the downstream side of the introduction part, The introduction part has a gap having a second width that is narrower than a first width of the second opening in a cross-sectional view along the direction and the height direction, a cover tape recovery device.

18. A method for recovering a cover tape in the cover tape recovery device according to claim 17, comprising: introducing the cover tape discharged from the feeder upstream of the gap in the introduction part; discharging the air from the first air discharge part to introduce the cover tape downstream of the gap.

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