JP2023103603A - feeder - Google Patents

Abstract

To disclose a feeder capable of suppressing a sudden change in magnetic force applied to a component received in a carrier tape that is guided by a tape guide.SOLUTION: A feeder includes a tape guide and an integrated magnet. The tape guide guides the transportation of a carrier tape receiving a component. The integrated magnet is a magnet provided under the carrier tape guided by the tape guide and equipped with both: first magnetic force applying, to the component, first suction power to stabilize a received attitude of the component in an upstream area that is provided closer on an upstream side in a transportation direction of the carrier tape than a collecting area where the component is collected from the carrier tape; and second magnetic force applying, to the component, second suction power weaker than the first suction power such that the collection of the component is not inhibited in the collecting area.SELECTED DRAWING: Figure 8

Description

This specification discloses a technology related to a feeder.

The tape feeder described in Patent Document 1 has a groove-shaped portion provided along the tape feeding direction on the upper surface of the frame member. A magnet-equipped lower receiving member is provided in the groove-shaped portion, in which two members, ie, a base portion and a plate spring member to which a magnet member is attached, are vertically opposed to each other. The lower receiving member with magnet supports the carrier tape from the lower surface side and stabilizes the posture of the electronic component accommodated in the component pocket by the magnetic force of the magnet member.

In the tape feeder described in Patent Document 2, a magnet is provided on the other side opposite to the one side on which the tape storage portion is formed. The upper part of the magnet is formed substantially parallel to the tape on the upstream side of the notch and is close to the other surface of the tape. In addition, the upper part of the magnet is tapered downstream from the notch, gradually separating from the other surface of the tape, and the distance from the other surface of the tape gradually increases as the distance from the notch increases. ing.

As a result, the magnetic force of the magnet acting on the electronic component gradually decreases from the notch toward the pickup position. In addition, Patent Document 2 states that the upper portion of the magnet does not necessarily have to be tapered, and that the composition of the magnet may be changed so that the magnetic force gradually decreases from the notch toward the pick-up position. is described.

JP 2007-027246 A Japanese Patent Application Laid-Open No. 2007-311382

In the upstream area provided on the upstream side in the conveying direction of the carrier tape from the picking area where the parts are picked from the carrier tape, there is a demand to make the magnetic force applied to the parts as strong as possible in order to stabilize the accommodating attitude of the parts. There is However, applying such magnetic forces to a part in the picking area can adversely affect the picking of the part. Therefore, it is assumed that a plurality of magnets having different magnetic forces are arranged side by side in the transport direction of the carrier tape. However, in the boundary region of the plurality of magnets, there is a possibility that the magnetic force will change suddenly and the housing posture of the components housed in the carrier tape will be disturbed.

In view of such circumstances, the present specification discloses a feeder capable of reducing sudden changes in magnetic force applied to components housed in carrier tapes guided by tape guides.

This specification discloses a feeder with tape guides and integral magnets. The tape guide guides the conveyance of the carrier tape containing the components. The integrated magnet is a magnet provided below the carrier tape guided by the tape guide, and is provided on the upstream side in the transport direction of the carrier tape from a sampling area for sampling the component from the carrier tape. a first magnetic force that imparts to the component a first attractive force that stabilizes the accommodation posture of the component in an upstream area where the first magnetic force is applied to the component, and a weaker than the first attractive force so as not to hinder picking of the component in the picking region Both have a second magnetic force that imparts a second attractive force to the component.

According to the above feeder, since it is provided with an integrated magnet, it is easier to reduce sudden changes in the magnetic force applied to the components housed in the carrier tape guided by the tape guide compared to the case where a plurality of magnets are used.

It is a top view which shows the structural example of a component mounting machine. It is a top view which shows an example of a carrier tape. 3 is a cross-sectional view of the carrier tape of FIG. 2; FIG. It is a side view which shows the structural example of a feeder. It is a perspective view which shows the structural example of a tape guide. FIG. 5 is a cross-sectional view showing the positional relationship between a tape guide and magnets of a comparative embodiment; FIG. 7 is a schematic diagram showing the relationship between the position of the carrier tape in the transport direction and the magnetic force of the magnet in FIG. 6 ; FIG. 4 is a cross-sectional view showing an example of the positional relationship between the tape guide and the integrated magnet; FIG. 9 is a schematic diagram showing an example of the relationship between the position of the carrier tape in the transport direction and the magnetic force of the integrated magnet of FIG. 8 ; FIG. 9 is a schematic diagram showing another example of the relationship between the position of the carrier tape in the transport direction and the magnetic force of the integrated magnet of FIG. 8 ; FIG. 10 is a cross-sectional view showing another example of the positional relationship between the tape guide and the integrated magnet; FIG. 12 is a schematic diagram showing an example of the relationship between the position of the carrier tape in the transport direction and the magnetic force of the integrated magnet of FIG. 11; FIG. 10 is a cross-sectional view showing another example of the positional relationship between the tape guide and the integrated magnet; FIG. 14 is a schematic diagram showing an example of the relationship between the position of the carrier tape in the transport direction and the magnetic force of the integrated magnet of FIG. 13; FIG. 10 is a cross-sectional view showing another example of the positional relationship between the tape guide and the integrated magnet; FIG. 16 is a schematic diagram showing an example of the relationship between the position of the carrier tape in the transport direction and the magnetic force of the integrated magnet of FIG. 15; FIG. 10 is a cross-sectional view showing another example of the positional relationship between the tape guide and the integrated magnet;

1. Embodiment 1-1. Configuration Example of Component Mounting Machine 10 The component mounting machine 10 mounts a plurality of components 91 on a board 90 . As shown in FIG. 1, the component mounting machine 10 includes a substrate conveying device 11, a component supply device 12, a component transfer device 13, a component camera 14, a substrate camera 15, and a control device 16.

The substrate conveying device 11 is configured by, for example, a belt conveyor, and conveys the substrate 90 in the conveying direction (arrow X direction). The substrate 90 is a circuit board on which electronic circuits, electric circuits, magnetic circuits, and the like are formed. The board transfer device 11 carries the board 90 into the component mounting machine 10 and positions the board 90 at a predetermined position inside the machine. After the component mounting machine 10 finishes mounting the plurality of components 91 , the board transfer device 11 carries the board 90 out of the component mounting machine 10 .

The component supply device 12 supplies components 91 to be mounted on the board 90 . The component supply device 12 has a plurality of slots 12a and a plurality of reel holding portions 12b. The plurality of slots 12a are provided along the transport direction (arrow X direction) of the substrate 90 . A feeder 50 is detachably provided in each of the plurality of slots 12a.

The feeder 50 is equipped with a reel 9R. A carrier tape 80 containing a plurality of components 91 is wound around the reel 9R. Each of the plurality of reel holding portions 12b replaceably holds the reel 9R around which the carrier tape 80 is wound. The feeder 50 can pull out the carrier tape 80 from the reel 9R held by the reel holding portion 12b while being installed in the slot 12a.

As shown in FIGS. 2 and 3, the carrier tape 80 has a base tape 81, a cover tape 82 and a bottom tape 83. As shown in FIG. The base tape 81 is the base of the carrier tape 80, and is provided with a plurality of accommodating portions 81a and a plurality of feed holes 81b. A component 91 is accommodated in each of the plurality of accommodating portions 81a. A plurality of accommodating portions 81 a are provided at predetermined pitch intervals in the longitudinal direction of the carrier tape 80 at the central portion in the width direction of the base tape 81 .

Each of the plurality of sprocket holes 81b is a through hole, and is used when conveying the carrier tape 80 in the conveying direction (the arrow Y direction perpendicular to the arrow X direction on the horizontal plane). The plurality of sprocket holes 81b are provided at one end in the width direction of the base tape 81 in the longitudinal direction of the carrier tape 80 at predetermined pitch intervals.

The cover tape 82 is a member that closes the accommodating portion 81 a of the base tape 81 . The cover tape 82 is attached, for example, to the upper surface of both ends in the width direction of the base tape 81 with an adhesive. The bottom tape 83 is attached to the lower surface of the base tape 81 with an adhesive, for example, and prevents the component 91 accommodated in the accommodation portion 81a from coming off.

As shown in FIG. 1, the feeder 50 feeds the carrier tape 80 by pitches, and supplies the components 91 in a picking area P2 located on the leading end side of the feeder 50 so as to be pickable. In addition, the component supply device 12 can also supply relatively large electronic components (for example, lead components) compared to chip components in a state of being arranged on a tray.

The component transfer device 13 includes a head driving device 13a and a moving table 13b. The head driving device 13a is configured such that the moving table 13b can be moved in the direction of transport of the substrate 90 (direction of arrow X) and the direction of transport of the carrier tape 80 (direction of arrow Y) by means of a linear motion mechanism. A mounting head 20 is detachably (exchangeably) provided on the moving table 13b by a clamp member.

The mounting head 20 uses at least one holding member 30 to pick up and hold the component 91 supplied by the component supply device 12 , and mounts the component 91 on the substrate 90 positioned by the substrate transfer device 11 . For example, a suction nozzle, a chuck, or the like can be used as the holding member 30 .

The component camera 14 and the substrate camera 15 can use known imaging devices. The component camera 14 is fixed to the base of the component mounter 10 so that the optical axis faces upward in the vertical direction (the Z direction orthogonal to the arrow X direction and the arrow Y direction). The parts camera 14 can image the parts 91 and the like held by the holding member 30 from below.

The substrate camera 15 is provided on the moving table 13b of the component transfer device 13 so that the optical axis faces downward in the vertical direction (Z direction). The substrate camera 15 can image the substrate 90 and the like from above. The component camera 14 and the board camera 15 perform imaging based on control signals sent from the control device 16 . Image data of images captured by the component camera 14 and the board camera 15 are transmitted to the control device 16 .

The control device 16 includes a known arithmetic device and storage device, and constitutes a control circuit. Information and image data output from various sensors provided in the component mounting machine 10 are input to the control device 16 . The control device 16 sends a control signal to each device based on the control program and predetermined wearing conditions set in advance.

For example, the control device 16 causes the substrate camera 15 to image the substrate 90 positioned by the substrate transfer device 11 . The control device 16 processes the image captured by the board camera 15 and recognizes the positioning state of the board 90 . Further, the control device 16 causes the holding member 30 to collect and hold the component 91 supplied by the component supply device 12 , and causes the component camera 14 to image the component 91 held by the holding member 30 . The control device 16 processes the image captured by the component camera 14 and recognizes the orientation of the component 91 .

The control device 16 moves the holding member 30 upward from the intended mounting position preset by the control program or the like. Further, the control device 16 corrects the planned mounting position based on the positioning state of the board 90, the attitude of the component 91, and the like, and sets the mounting position where the component 91 is actually mounted. The planned mounting position and mounting position include the position (X coordinate and Y coordinate) as well as the rotation angle.

The control device 16 corrects the target position (X coordinate and Y coordinate) and rotation angle of the holding member 30 according to the mounting position. The controller 16 lowers the holding member 30 at the corrected rotation angle at the corrected target position to mount the component 91 on the substrate 90 . The control device 16 repeats the pick-and-place cycle described above to perform a mounting process of mounting a plurality of components 91 on the board 90 .

1-2. Configuration Example of Feeder 50 The feeder 50 conveys the carrier tape 80 in the conveying direction (arrow Y direction) and supplies the components 91 to the picking area P2. The feeder 50 may take various forms as long as it can convey the carrier tape 80 and supply the components 91 to the collection area P2. The feeder 50 of the embodiment is an auto-loading feeder that transports the carrier tape 80 with the tape end inserted into the insertion portion 51a to the picking area P2 by the feeding mechanism.

As shown in FIG. 4, the feeder 50 of the embodiment includes a feeder body portion 51, a first feeding portion 52, a second feeding portion 53, a tape holding portion 54, a control portion 55, and a tape guide 60. I have. The feeder body portion 51 is formed in a flat box shape. The feeder body portion 51 includes an insertion portion 51a and a conveying path 51b.

A tape end of the carrier tape 80 to be transported is inserted into the insertion portion 51a. The transport path 51b is formed in a groove shape, and supports from below the carrier tape 80 whose tape end is inserted into the insertion portion 51a. The carrier tape 80 whose tape end is inserted into the insertion portion 51a is pressed against the upper surface of the transport path 51b by the tape pressing portion 54. As shown in FIG.

The first sending section 52 conveys the carrier tape 80, the tape end of which is inserted into the insertion section 51a, toward the collecting area P2 along the conveying path 51b. The first feeding section 52 includes a pair of sprockets 52a and 52b and a motor 52c. Each of the pair of sprockets 52a, 52b is a rotating member having teeth engageable with the feed holes 81b of the carrier tape 80. As shown in FIG.

Each of the pair of sprockets 52a and 52b is rotatably supported by the feeder main body 51. As shown in FIG. The pair of sprockets 52a and 52b are spaced apart in the direction of transport of the carrier tape 80 (direction of arrow Y). Each of the pair of sprockets 52a and 52b is arranged below the transport path 51b so that the tooth portion slightly protrudes upward from the upper surface of the transport path 51b.

A motor 52c rotates the pair of sprockets 52a and 52b. The motor 52c may rotate the pair of sprockets 52a and 52b, and may be a known driving device such as a stepping motor or a servomotor. The motor 52c is connected to a pair of sprockets 52a and 52b via a speed reducer.

The motor 52c conveys the carrier tape 80 by rotating the pair of sprockets 52a and 52b, for example, by the pitch interval of the accommodating portion 81a of the carrier tape 80. As shown in FIG. Specifically, the motor 52c is driven and controlled by the control unit 55 in a state in which the teeth of the pair of sprockets 52a and 52b are engaged with the feed holes 81b of the carrier tape 80 whose end of the tape is inserted into the insertion portion 51a. . As a result, the carrier tape 80 is conveyed along the conveying path 51b toward the collection area P2.

The second feeding unit 53 further transports the carrier tape 80 transported to the vicinity of the picking area P2 in the transport direction (arrow Y direction) while restricting upward and widthwise movement by the tape guide 60. , pulls the carrier tape 80 toward the picking area P2. The second feeding section 53 includes a pair of sprockets 53a and 53b and a motor 53c.

Each of the pair of sprockets 53a and 53b is a rotating member having teeth engageable with the feed holes 81b of the carrier tape 80. As shown in FIG. Each of the pair of sprockets 53a and 53b is rotatably supported by the feeder body 51. As shown in FIG. The pair of sprockets 53a and 53b are spaced apart in the direction of transport of the carrier tape 80 (direction of arrow Y). Each of the pair of sprockets 53a and 53b is arranged below the transport surface of the tape guide 60 so that the teeth project slightly upward from the transport surface.

The motor 53c rotates the pair of sprockets 53a and 53b. The motor 53c can rotate the pair of sprockets 53a and 53b, and for example, a known driving device such as a stepping motor or a servomotor can be used. The motor 53c is connected to a pair of sprockets 53a and 53b via a speed reducer.

The motor 53c conveys the carrier tape 80 by rotating the pair of sprockets 53a and 53b, for example, by the pitch interval of the accommodating portion 81a of the carrier tape 80. As shown in FIG. Specifically, in a state in which the teeth of the pair of sprockets 53a and 53b are engaged with the sprocket holes 81b of the carrier tape 80 where the tape end has reached the vicinity of the collection area P2, the motor 53c is driven and controlled by the control unit 55. be. As a result, the carrier tape 80 is further transported in the transport direction (arrow Y direction) and drawn toward the collection area P2.

The tape guide 60 guides the conveyance of the carrier tape 80 containing the component 91 . Specifically, the tape guide 60 guides the carrier tape 80 so that the carrier tape 80 is transported toward the collecting area P2 while restricting the movement of the carrier tape 80 upward and in the width direction. The tape guide 60 is detachably attached to the feeder body 51 .

The tape guide 60 is arranged on the downstream side of the transport path 51b in the transport direction (arrow Y direction) of the carrier tape 80 . The tape guide 60 can expose the component 91 from the accommodation portion 81a of the base tape 81 of the carrier tape 80 while pressing the upper surface of the carrier tape 80 against the conveying surface.

Specifically, the tape guide 60 is biased downward with respect to the feeder main body 51 and can press the upper surface of the carrier tape 80 even if the thickness of the carrier tape 80 changes. Therefore, the floating of the carrier tape 80 is suppressed, and the engagement between the feed hole 81b and the pair of sprockets 53a, 53b is maintained.

As shown in FIG. 5 , the tape guide 60 has a guide portion 61 that guides the carrier tape 80 . The guide portion 61 is formed to extend along the transport direction (arrow Y direction) of the carrier tape 80 and has a U-shaped cross section. The guide portion 61 has an upper wall portion 62 and a pair of side wall portions 63 , 63 . The upper wall portion 62 restricts upward movement of the carrier tape 80 and suppresses floating of the carrier tape 80 . Also, the pair of side wall portions 63, 63 regulates the movement of the carrier tape 80 in the width direction.

The tape guide 60 has a stripping portion 64 . The peeling portion 64 exposes the component 91 housed in the housing portion 81 a of the base tape 81 . The peeling unit 64 peels off the cover tape 82 from the base tape 81 of the carrier tape 80 immediately before the collection area P2 in the transport direction (arrow Y direction) of the carrier tape 80 to expose the component 91 .

Specifically, the peeling portion 64 includes a tongue portion 64a and a blade portion 64b. The tongue portion 64a is inserted between the base tape 81 and the cover tape 82 while the carrier tape 80 is being conveyed. The blade portion 64b is inserted into the bonding portion between the base tape 81 and the cover tape 82 to partially peel the cover tape 82 from the base tape 81 .

An upper wall portion 62 of the guide portion 61 is provided with an opening portion 62a. The opening 62a is formed by cutting out a portion of the upper wall portion 62 . The tongue 64a is arranged to be exposed to the outside through the opening 62a. The tongue portion 64a is formed to extend along the conveying direction (arrow Y direction) of the carrier tape 80, and is arranged so that the plate surface is horizontal. The tongue portion 64a is fixed to the guide portion 61 by welding or the like. The tongue portion 64a is arranged in a state in which the tip thereof is directed upstream in the direction of transport of the carrier tape 80 (direction of arrow Y).

The tongue portion 64 a has a predetermined width in the width direction of the carrier tape 80 . The predetermined width is set to be smaller than the tape width of the carrier tape 80 . In the width direction of the carrier tape 80, the tongue portion 64a is located on one end side of the both ends where the cover tape 82 is adhered to the base tape 81 (specifically, on the end portion side where the sprocket holes 81b are provided). and opposite side). Note that the tip of the tongue portion 64a is formed in a mountain shape.

The blade portion 64b is provided on the tip side of the tongue portion 64a, and in the width direction of the carrier tape 80, one end portion side (specifically, , opposite to the end where the feed hole 81b is provided). Further, the blade portion 64b is arranged in a state in which the blade edge faces the upstream side in the direction of transport of the carrier tape 80 (direction of arrow Y). The blade portion 64b is inserted between the base tape 81 and the cover tape 82 of the carrier tape 80, partially peels off the cover tape 82 from the base tape 81, and removes the base tape 81 from the collection area P2. The component 91 housed in 81a is exposed.

The tape guide 60 has a folded portion 65 . After the cover tape 82 is partially peeled off from the base tape 81 , the folded portion 65 raises one widthwise end of the peeled cover tape 82 and folds it back. The folded portion 65 is arranged downstream of the tongue portion 64a and upstream of the collecting region P2 in the transport direction (arrow Y direction) of the carrier tape 80. As shown in FIG. The folded portion 65 is formed in a plate shape. The folded portion 65 is formed such that its width dimension increases from the upstream side toward the downstream side in the transport direction (arrow Y direction) of the carrier tape 80 .

The control unit 55 drives and controls the feeder 50 . Specifically, the control unit 55 includes a known arithmetic device and storage device, and constitutes a control circuit. For example, the control unit 55 drives and controls the motor 52c and the motor 53c based on the detection result (for example, the detection result of the presence or absence of the carrier tape 80, etc.) of the sensor arranged in the feeder main body 51 of the feeder 50. .

1-3. Transport of Carrier Tape 80 in Tape Guide 60 For example, the feeder 50 of the embodiment is an autoloading feeder. The auto-loading feeder transports the carrier tape 80, the tape end of which is inserted into the insertion portion 51a, to the collection area P2 by the feed mechanism. In the upstream region P1 provided upstream in the conveying direction (arrow Y direction) of the carrier tape 80 from the picking region P2 where the components 91 are picked from the carrier tape 80, it is necessary to stabilize the accommodation posture of the components 91.

Specifically, as described above, the carrier tape 80 includes a base tape 81 provided with a housing portion 81a for housing a component 91, and a cover tape 82 for closing the housing portion 81a. Further, the tape guide 60 has a peeling portion 64 for peeling the cover tape 82 from the base tape 81 of the carrier tape 80 to be guided, in the upstream region P1.

Vibration or the like during transport of the carrier tape 80 may disturb the accommodation posture of the component 91 in the accommodation portion 81 a of the base tape 81 . Further, when the carrier tape 80 is transported, the components 91 accommodated in the accommodation portion 81a of the base tape 81 may stick to the cover tape 82 due to static electricity or the like. Furthermore, when the cover tape 82 is peeled from the base tape 81 by the peeling portion 64, the components 91 housed in the housing portion 81a of the base tape 81 may stick to the cover tape 82 due to static electricity or the like. If the component 91 sticks to the cover tape 82 , the component 91 may be damaged by the blade portion 64 b of the peeling portion 64 .

In order to suppress these, as shown in FIG. 6, in the comparative embodiment, a plurality of (two in the figure) magnets 66 and 67 are provided below the carrier tape 80 guided by the tape guide 60. there is FIG. 6 shows the positional relationship between the tape guide 60 and the magnets 66 and 67 of the comparative form. Magnets 66 and 67 are fixed to support plate 56 provided between carrier tape 80 . The support plate 56 is made of a non-magnetic material and fixed to the feeder main body 51 . FIG. 6 shows a portion where the tape guide 60, the carrier tape 80 guided by the tape guide 60, the support plate 56, and the magnets 66 and 67 shown in FIG. Y direction) is a cross-sectional view.

In order to stabilize the accommodation posture of the component 91 in the upstream region P1, there is a demand to make the magnetic force applied to the component 91 as strong as possible. However, if the magnetic force is applied to the part 91 in the picking area P2, picking of the part 91 may be adversely affected, such as making picking of the part 91 difficult.

Therefore, as shown in FIG. 6, it is assumed that a plurality (two) of magnets 66 and 67 having different magnetic forces are arranged side by side in the transport direction (arrow Y direction) of the carrier tape 80 . Specifically, the magnets 67 provided adjacent to the magnets 66 in the conveying direction (arrow Y direction) of the carrier tape 80 use magnets having a weaker magnetic force than the magnets 66 .

FIG. 7 shows the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the magnets 66 and 67 in FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the magnets 66,67. A polygonal line L1 indicates changes in the magnetic force of the magnets 66 and 67. FIG. As shown in FIGS. 6 and 7, in a predetermined region A1 that extends along the transport direction (arrow Y direction) of the carrier tape 80 and includes the upstream region P1, the magnetic force is the first magnetic force by the magnet 66. It is constant at M1.

In a predetermined area A2 that extends along the transport direction (arrow Y direction) of the carrier tape 80 and includes the collection area P2, the magnetic force is a second magnetic force M2 by the magnet 67 and is constant. The second magnetic force M2 is weaker than the first magnetic force M1. In addition, in the boundary region P3 between the magnets 66 and 67, the magnetic force rapidly decreases from the first magnetic force M1 to the second magnetic force M2. As described above, in the boundary region P3 between the magnets 66 and 67, the magnetic force may change suddenly, and the accommodation posture of the component 91 accommodated in the carrier tape 80 may be disturbed.

1-4. Configuration Example of Integrated Magnet 70 The feeder 50 of the embodiment includes a tape guide 60 and an integrated magnet 70 . The tape guide 60 guides the conveyance of the carrier tape 80 containing the component 91 . The tape guide 60 may take various forms as long as it can guide the transport of the carrier tape 80 .

As described above, the carrier tape 80 includes a base tape 81 provided with a housing portion 81a for housing a component 91, and a cover tape 82 that closes the housing portion 81a. Further, as shown in FIG. 5, the tape guide 60 of the embodiment includes a peeling portion 64 for peeling the cover tape 82 from the base tape 81 of the carrier tape 80 to be guided, in the upstream region P1.

As shown in FIGS. 8 and 9, the integrated magnet 70 is a magnet provided below the carrier tape 80 guided by the tape guide 60 and has both a first magnetic force M1 and a second magnetic force M2. FIG. 8 shows an example of the positional relationship between the tape guide 60 and the integrated magnet 70. As shown in FIG. Integrated magnet 70 is fixed to support plate 56 provided between carrier tape 80 . The support plate 56 is made of a non-magnetic material and fixed to the feeder main body 51 .

FIG. 8 shows a portion where the tape guide 60, the carrier tape 80 guided by the tape guide 60, the support plate 56, and the integrated magnet 70 shown in FIG. Y direction) is a cross-sectional view. What has been described above with respect to FIG. 8 is similarly applicable to other forms described later.

The first magnetic force M1 stabilizes the accommodation posture of the components 91 in the upstream region P1 provided upstream in the transport direction (arrow Y direction) of the carrier tape 80 from the collection region P2 where the components 91 are collected from the carrier tape 80. A first attraction force is applied to the component 91 to cause the component 91 to move. The second magnetic force M2 applies a second attractive force weaker than the first attractive force to the component 91 in the picking region P2 so as not to hinder the picking of the component 91 .

Even if the magnetic force is constant, the first attractive force and the second attractive force are applied to the contact area between the integrated magnet 70 and the carrier tape 80, and the distance between the integrated magnet 70 and the component 91 accommodated in the carrier tape 80. , and the installation conditions, including the thickness 71 of the integrated magnet 70 . For example, when the integrated magnet 70 has a plate-like rectangular parallelepiped shape, the contact area corresponds to the area of the portion (rectangle) of the integrated magnet 70 facing the carrier tape 80 . Therefore, according to the above installation conditions, the designer verifies the first magnetic force M1 that generates the necessary first attractive force and the second magnetic force M2 that generates the necessary second attractive force through simulation and actual equipment. It is better to acquire it by, for example.

For example, the designer peels off the cover tape 82 from the base tape 81 of the carrier tape 80 by the peeling portion 64 while changing (increasing or decreasing) the first magnetic force M1 using an actual machine with predetermined installation conditions. When the cover tape 82 is peeled off, the designer acquires the amount of change in the accommodation posture of the component 91 accommodated in the accommodation portion 81a of the base tape 81, and acquires the first magnetic force M1 in which the amount of change falls within a predetermined range. can do.

What has been described above can be similarly applied to the upstream region P1 other than the region where the peeled portion 64 is provided. Specifically, when the carrier tape 80 is conveyed, the designer acquires the amount of change in the accommodation posture of the component 91 accommodated in the accommodation portion 81a of the base tape 81 in the upstream region P1, and the amount of change is It is possible to obtain the first magnetic force M1 that falls within a predetermined range.

Further, for example, the designer uses an actual machine with predetermined installation conditions to pick up the component 91 accommodated in the carrier tape 80 by the holding member 30 while changing (increasing or decreasing) the second magnetic force M2. The designer can obtain the second magnetic force M2 from which the part 91 can be picked. Further, when the component 91 is picked up, the designer can obtain the amount of change in the containing posture of the component 91 contained in the containing portion 81a of the base tape 81, can collect the component 91, and can It is also possible to acquire the second magnetic force M2 whose amount falls within a predetermined range.

As shown in FIG. 9, the integrated magnet 70 is formed so that the magnetic force is weakened at a constant rate from the upstream region P1 toward the collection region P2 in the transport direction (arrow Y direction) of the carrier tape 80. can be done. FIG. 9 shows an example of the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the integrated magnet 70 of FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the integrated magnet 70 . A straight line L2 indicates a change in the magnetic force of the integrated magnet 70. As shown in FIG.

As shown in FIG. 9, the integrated magnet 70 has a first magnetic force M1 in the upstream region P1 and a second magnetic force M2 in the extraction region P2. The second magnetic force M2 is weaker than the first magnetic force M1. In addition, the magnetic force of the integrated magnet 70 is weakened at a constant rate from the upstream area P1 toward the collection area P2 in the transport direction (arrow Y direction) of the carrier tape 80 . In this way, the integrated magnet 70 of the embodiment suppresses a sudden change in magnetic force compared to the case where a plurality of magnets are used. Therefore, compared to the case where a plurality of magnets are used, disturbance of the accommodation posture of the component 91 accommodated in the carrier tape 80 due to a sudden change in magnetic force is suppressed.

As shown in FIG. 10, the integrated magnet 70 has a magnetic force of a first magnetic force M1 in a first region B1 that extends along the transport direction (arrow Y direction) of the carrier tape 80 and includes an upstream region P1. It can also be formed to be constant. In addition, the integrated magnet 70 is formed so that the magnetic force is constant at the second magnetic force M2 in the second region B2, which is a region extending along the conveying direction (arrow Y direction) of the carrier tape 80 and includes the collection region P2. You can also At this time, the integrated magnet 70 can be formed so that the magnetic force between the first region B1 and the second region B2 weakens at a constant rate from the first region B1 toward the second region B2.

FIG. 10 shows another example of the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the integrated magnet 70 of FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the integrated magnet 70 . A polygonal line L3 indicates a change in the magnetic force of the integrated magnet 70. FIG.

As shown in FIG. 10, the integrated magnet 70 has a constant first magnetic force M1 in a first region B1 including the upstream region P1, and a first magnetic force M1 in a second region B2 including the sampling region P2. It is constant at two magnetic forces M2. The second magnetic force M2 is weaker than the first magnetic force M1. In addition, the magnetic force of the integrated magnet 70 is weakened at a constant rate from the first region B1 to the second region B2 between the first region B1 and the second region B2. In this way, even in the above embodiment, a sudden change in magnetic force is suppressed, and disturbance of the accommodated posture of components 91 accommodated in carrier tape 80 due to a sudden change in magnetic force is suppressed.

It should be noted that the method of forming the integrated magnet 70 can take various forms. For example, the magnetizer can change the distance between the integrated magnet 70 and the magnetized portion when magnetizing the integrated magnet 70 . Specifically, the magnetizer increases the distance between the integrated magnet 70 and the magnetized portion at a constant rate from the upstream side to the downstream side in the direction of transport of the carrier tape 80 (direction of arrow Y). do. As a result, the integrated magnet 70 has the characteristics shown in FIG.

Similarly, the magnetizer keeps the distance between the integrated magnet 70 and the magnetized portion constant in the first region B1. In addition, the magnetizer lengthens the distance between the integrated magnet 70 and the magnetized portion at a constant rate between the first region B1 and the second region B2. Furthermore, the magnetizer keeps the distance between the integrated magnet 70 and the magnetized portion constant in the second region B2. As a result, the integrated magnet 70 has the characteristics shown in FIG.

In addition, the integrated magnet 70 can also change the composition of the magnet in the transport direction (arrow Y direction) of the carrier tape 80 . For example, the more upstream the carrier tape 80 is conveyed (in the direction of arrow Y), the more rare earth-based raw magnet powder is used. The more downstream the carrier tape 80 is conveyed (direction of arrow Y), the more ferrite-based raw magnet powder is used. Thereby, the integrated magnet 70 can obtain the characteristics shown in FIG. 9 or 10 . A permanent magnet such as a sintered magnet can be used for the integrated magnet 70 .

As shown in FIG. 11, the integrated magnet 70 is formed so that the thickness 71 decreases at a constant rate from the upstream region P1 toward the collection region P2 in the transport direction (arrow Y direction) of the carrier tape 80. can also FIG. 12 shows an example of the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the integrated magnet 70 shown in FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the integrated magnet 70 . A straight line L4 indicates a change in the magnetic force of the integrated magnet 70. As shown in FIG.

The change in the magnetic force of the integrated magnet 70 indicated by the straight line L4 in FIG. 12 is the same as the change in the magnetic force of the integrated magnet 70 indicated by the straight line L2 in FIG. Therefore, even in the above-described embodiment, a sudden change in magnetic force is suppressed, and disturbance of the accommodating posture of the component 91 accommodated in the carrier tape 80 due to a sudden change in magnetic force is suppressed.

As shown in FIG. 13, the integral magnet 70 has a thickness 71 in a first region B1 that extends along the conveying direction (arrow Y direction) of the carrier tape 80 and includes the upstream region P1. It can also be formed so as to be constant at 71a. In addition, the integral magnet 70 is arranged such that the thickness 71 is constant at the second thickness 71b in the second region B2, which is a region extending along the conveying direction (arrow Y direction) of the carrier tape 80 and includes the collection region P2. can also be formed into At this time, the integrated magnet 70 can also be formed so that the thickness 71 between the first region B1 and the second region B2 decreases at a constant rate from the first region B1 toward the second region B2. .

FIG. 14 shows an example of the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the integrated magnet 70 of FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the integrated magnet 70 . A polygonal line L5 indicates changes in the magnetic force of the integrated magnet 70. FIG.

The change in the magnetic force of the integrated magnet 70 indicated by the polygonal line L5 in FIG. 14 is similar to the change in the magnetic force of the integrated magnet 70 indicated by the polygonal line L3 in FIG. Therefore, even in the above-described embodiment, a sudden change in magnetic force is suppressed, and disturbance of the accommodating posture of the component 91 accommodated in the carrier tape 80 due to a sudden change in magnetic force is suppressed.

As shown in FIG. 15, in the integrated magnet 70, the distance 72a from the upstream region P1 to the component 91 facing toward the picking region P2 in the conveying direction (arrow Y direction) of the carrier tape 80 is constant. The tapered portion 72 can also be formed to be longer. The taper angle is an angle at which the first attraction force can be applied to the component 91 in the upstream region P1 and the second attraction force can be applied to the component 91 in the collecting region P2. The taper angle can be obtained through simulation, verification using an actual machine, or the like.

FIG. 16 shows an example of the relationship between the position of the carrier tape 80 in the conveying direction (arrow Y direction) and the magnetic force of the integrated magnet 70 of FIG. The horizontal axis indicates the position of the carrier tape 80 in the transport direction (arrow Y direction). The vertical axis indicates the magnitude of the magnetic force of the integrated magnet 70 . A straight line L6 indicates a change in the magnetic force of the integrated magnet 70. As shown in FIG.

The change in the magnetic force of the integrated magnet 70 indicated by the straight line L6 in FIG. 16 is the same as the change in the magnetic force of the integrated magnet 70 indicated by the straight line L2 in FIG. Therefore, even in the above-described embodiment, a sudden change in magnetic force is suppressed, and disturbance of the accommodating posture of the component 91 accommodated in the carrier tape 80 due to a sudden change in magnetic force is suppressed.

As such, integrated magnet 70 may take a variety of forms. Also, the integrated magnet 70 may have a form in which the above-described forms are combined. For example, as shown in FIG. 17, the integral magnet 70 has a thickness 71 that decreases at a constant rate from the upstream region P1 toward the collection region P2 in the direction of transport of the carrier tape 80 (direction of arrow Y). can be formed. In addition, the integrated magnet 70 is tapered so that the distance 72a from the upstream area P1 to the part 91 facing toward the picking area P2 increases at a constant rate in the conveying direction (arrow Y direction) of the carrier tape 80. A portion 72 can be formed.

In any of the forms described above, the integrated magnet 70 can be fixed to the support plate 56 provided between the carrier tape 80 . Therefore, compared with the case where the integral magnet 70 is directly fixed to the feeder main body 51, the fixing of the integral magnet 70 is easier.

Further, in any of the above-described forms, the feeder 50 can be provided with an adjusting device 57 that adjusts the position where the integrated magnet 70 is provided in the conveying direction (arrow Y direction) of the carrier tape 80 . The adjustment device 57 may take various forms as long as it can adjust the position where the integrated magnet 70 is provided in the transport direction (arrow Y direction) of the carrier tape 80 .

For example, the adjustment device 57 can use a linear motion mechanism capable of moving the integrated magnet 70 along the transport direction (arrow Y direction) of the carrier tape 80 . In the mode in which the integrated magnet 70 is fixed to the support plate 56, the adjustment device 57 moves the support plate 56 to which the integrated magnet 70 is fixed along the transport direction (arrow Y direction) of the carrier tape 80. can be made

Further, the carrier tape 80 includes a base tape 81 provided with a housing portion 81a for housing a component 91, and a cover tape 82 for closing the housing portion 81a. The tape guide 60 has a peeling portion 64 for peeling the cover tape 82 from the base tape 81 of the carrier tape 80 to be guided, in the upstream region P1. Therefore, the feeder 50 can achieve both suppression of damage to the components 91 when the cover tape 82 is peeled off from the base tape 81 in the upstream region P1 and collection of the components 91 in the collection region P2.

Note that the feeder 50 of the embodiment is an autoloading feeder. The auto-loading feeder transports the carrier tape 80, the tape end of which is inserted into the insertion portion 51a, to the collection area P2 by the feed mechanism. The feeder 50 may be a feeder that does not have a feeding mechanism that automatically feeds the carrier tape 80 when the end of the tape is inserted into the insertion portion 51a.

2. One Example of Effect of the Embodiment According to the feeder 50, since the integrated magnet 70 is provided, the component 91 accommodated in the carrier tape 80 guided by the tape guide 60 is provided with more force than when a plurality of magnets are used. It is easy to reduce the sudden change of the magnetic force.

50: feeder, 56: support plate, 57: adjustment device,
60: tape guide, 64: peeling portion,
70: integrated magnet, 71: thickness, 72: tapered portion, 72a: distance,
80: carrier tape, 81: base tape, 81a: housing portion, 82: cover tape,
91: parts, B1: first area, B2: second area, M1: first magnetic force, M2: second magnetic force,
P1: upstream region, P2: collection region.

Claims (8)

a tape guide that guides the conveyance of a carrier tape containing components;
A magnet provided below the carrier tape guided by the tape guide, in an upstream region provided upstream in the conveying direction of the carrier tape from a picking region for picking the component from the carrier tape. A first magnetic force that applies a first attraction force to the component to stabilize the accommodation posture of the component, and a second attraction force that is weaker than the first attraction force so as not to hinder the picking of the component in the picking area. a monolithic magnet with both a second magnetic force imparting to the part;
feeder with 2. The feeder according to claim 1, wherein said integrated magnet is formed such that the magnetic force of said integral magnet is weakened at a constant rate from said upstream region toward said collection region in the transport direction of said carrier tape. The integrated magnet has a constant magnetic force at the first magnetic force in a first region including the upstream region, which is a region extending along the transport direction of the carrier tape, and along the transport direction of the carrier tape In a second region which is an extended region and includes the extraction region, the magnetic force becomes constant at the second magnetic force, and between the first region and the second region, from the first region toward the second region 2. The feeder according to claim 1, wherein the magnetic force is weakened at a constant rate. 4. The integrated magnet is formed so that its thickness decreases at a constant rate from the upstream area toward the sampling area in the transport direction of the carrier tape. feeder as described above. 3. The integrated magnet is formed with a tapered portion so that a distance from the upstream side area to the parts facing toward the picking area increases at a constant rate in the conveying direction of the carrier tape. Feeder according to any one of claims 1 to 4. The feeder according to any one of claims 1 to 5, wherein the integrated magnet is fixed to a support plate provided between the carrier tape. The feeder according to any one of claims 1 to 6, further comprising an adjusting device for adjusting a position where the integrated magnet is provided in the transport direction of the carrier tape. The carrier tape includes a base tape provided with an accommodation portion for accommodating the component, and a cover tape that closes the accommodation portion is attached to the base tape,
The feeder according to any one of claims 1 to 7, wherein the tape guide includes, in the upstream region, a peeling portion for peeling the cover tape from the base tape of the carrier tape to guide.

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