Feeder, component mounting machine, and component mounting method

Abstract

A feeder for supplying a component by feeding out tape which houses the component, said feeder being equipped with: a feeder main body which is provided with a holding unit for holding a disc-shaped reel around which the tape is wound in a manner such that said reel can rotate around a center axis thereof; and a plate-shaped cover for opening and closing the holding unit. The cover has an opening formed therein in a location which corresponds to a region of the disc-like surface of the reel where it is possible to impart a reel identification code.

Description

Technical Field

[0001] This specification discloses a feeder, a component mounting machine, and a component mounting method.

Background Art

[0002] Conventionally, a disk-shaped reel around which a tape containing components is wound is detachably attached, and a feeder that feeds out the tape by rotating the reel to supply components is known. For example, Patent Document 1 describes covering a reel attached to a feeder with a transparent cover such as an acrylic plate, and making it possible to read an identification code such as a barcode attached to the reel through the transparent cover.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the above-described feeder is attached to and detached from the component mounting machine, the transparent cover may rub against an adjacent feeder. If such rubbing during attachment and detachment is repeated and scratches occur on the transparent cover, the transparency of the transparent cover may decrease due to aging, making it difficult to read the identification code.

[0005] The main object of the present disclosure is to enable easy reading of the identification code of the reel without being affected by aging.

Means for Solving the Problems

[0006] The present disclosure has adopted the following means to achieve the above main object.

[0007] The feeder of the present disclosure is A feeder that supplies components by sending out a tape containing the components, A feeder body is provided with a holding part that holds a disc-shaped reel around which the tape is wound so that it can rotate around a central axis, A plate-shaped cover that opens and closes the aforementioned holding part, Equipped with, The cover has an opening formed in a portion of the reel's surface that corresponds to an area to which the reel's identification code can be assigned.

[0008] In the feeder of this disclosure, since an opening is formed in the reel cover, the identification code of the reel can be easily read without being affected by aging. [Brief explanation of the drawing]

[0009] [Figure 1] A schematic diagram showing the general configuration of the component mounting machine 10. [Figure 2] A schematic diagram showing the general configuration of the tape feeder 20. [Figure 3] Diagram illustrating the smallest diameter reel, 40S. [Figure 4] Diagram illustrating the largest diameter reel, 40L. [Figure 5] Diagram illustrating tape feeder 20 with a 40S reel installed. [Figure 6] Diagram illustrating a tape feeder 20 with a 40L reel installed. [Figure 7] An explanatory diagram showing an example of the opening area of ​​opening 31. [Figure 8] Diagram illustrating a comparative example tape feeder 120 with a 40S reel installed. [Figure 9] Diagram illustrating a comparative example tape feeder 120 with a 40L reel installed. [Modes for carrying out the invention]

[0010] Next, embodiments of the present disclosure will be described with reference to the drawings. Figure 1 is a schematic diagram showing the configuration of the component mounting machine 10. Figure 2 is a schematic diagram showing the configuration of the tape feeder 20. As shown in Figure 1, the component mounting machine 10 includes a substrate transport device 11 for transporting substrates S, a tape feeder 20 for supplying components, a head 14 on which nozzles for picking up components are arranged to be vertically movable, and a moving device 15 for moving the head 14 in the XY direction. The substrate transport device 11 has two pairs of conveyor belts, and the substrates S are transported by each conveyor belt.

[0011] The tape feeder 20 supplies parts by, for example, sending a tape containing parts at a predetermined pitch to a supply position where the parts can be picked up using the nozzle of the head 14. The tape, although not shown in the figures, consists of a bottom tape with cavities (recesses) for accommodating parts at predetermined intervals and a film-like cover tape that covers the bottom tape. The tape feeder 20 has a reel 40 (see Figures 3 and 4) on which the tape is wound, and it pulls the tape from the reel 40 and sends it to the supply position. Just before reaching the supply position, it peels the cover tape from the bottom tape, making the parts ready to be picked up. Note that Figure 2 shows the tape feeder 20 without the reel 40 set.

[0012] Furthermore, multiple tape feeders 20 are mounted in a row on a feeder stand 16 provided on the component mounting machine 10. The feeder stand 16 is an L-shaped stand in side view and is equipped with multiple slots 17, two positioning holes 18 corresponding to each slot 17, and connectors 19 corresponding to each slot 17. The tape feeders 20 are mounted on the feeder stand 16 by inserting the tape feeders 20 into the slots 17 and sliding them. In the component mounting machine 10, multiple types of components are supplied from the multiple tape feeders 20 mounted on the feeder stand 16, and each supplied component can be picked up by the nozzle of the head 14 and mounted on the circuit board S.

[0013] As shown in FIG. 2, the tape feeder 20 includes a feeder body 21 provided with a reel holder 26 for holding a reel 40, and a plate-shaped reel cover 30 for opening and closing the reel holder 26. The feeder body 21 is provided with two positioning pins 22 and a connector 23 at the front end in the mounting direction of the tape feeder 20 to the feeder base 16 (see FIG. 2) so as to project forward in the mounting direction. The two positioning pins 22 are respectively inserted into two positioning holes 18 of the feeder base 16. The connector 23 is provided between the two positioning pins 22 and is connected to the connector 19 of the feeder base 16.

[0014] The reel holder 26 is configured to rotatably hold a plurality of types of reels 40 having different sizes around a central axis, and a holding shaft 26a for holding the reel 40 is provided at the central portion.

[0015] Here, among a plurality of types of reels 40 having different sizes, the reel 40S with the minimum diameter is shown in FIG. 3, and the reel 40L with the maximum diameter is shown in FIG. 4. The reels 40S and 40L have the same configuration, and include a core portion 42 around which a tape T is wound to form a central axis, and a pair of disk portions 44 attached to the core portion 42 so as to sandwich the tape T from both sides. A central hole 42a into which the holding shaft 26a of the reel holder 26 is inserted is formed in the core portion 42. Cutout windows 44a are formed at a plurality of locations in the disk portion 44. An operator can visually recognize the tape T (the black region in FIGS. 3 and 4) through the cutout windows 44a. In addition, an identification code 46 such as a barcode or a two-dimensional code for reading identification information such as the type of component housed in the reel 40 (tape T) is provided on the disk portion 44. The identification code 46 can be provided at a position deviated from the core portion 42 and in a region where the cutout window 44a of the disk portion 44 is not formed (the gray region in FIGS. 3 and 4). In the present embodiment, an example is shown in which the identification code 46 for reading identification information is provided, but a label or the like on which the identification information is shown so that the operator can confirm it may be provided.

[0016] The reel cover 30 is a plate-like member that opens and closes the reel holder 26 by rotating via a support shaft 32 provided at the lower part, and enables the attachment and detachment of the reel 40 to the reel holder 26 in the open state. This reel cover 30 is formed of a single metal plate, and is sized to cover from the lower end of the reel holder 26 to above the holding shaft 26a in the closed state, and expose the upper part of the reel holder 26. That is, the reel cover 30 is sized to cover more than half of the disk surface area of the reel 40 held by the reel holder 26. Further, an opening 31 is formed in the reel cover 30. Details of this opening 31 will be described later.

[0017] The tape feeder 20 includes a front lock mechanism 27 and a rear lock mechanism 28 in the mounting direction of the tape feeder 20 as lock mechanisms for locking the reel cover 30. Although details of the lock mechanisms 27 and 28 are omitted, the reel cover 30 is locked by an operator pushing the front upper edge and the rear upper edge of the reel cover 30 toward the lock mechanisms 27 and 28, respectively, and the lock is released by the operator pushing the release lever upward.

[0018] A state where the reel 40 (reel 40S, 40L) is set in the thus configured tape feeder 20 will be described. FIG. 5 is an explanatory view of the tape feeder 20 in which the reel 40S is set. FIG. 6 is an explanatory view of the tape feeder 20 in which the reel 40L is set. Note that illustration of the tape T is omitted for the reel 40 after FIG. 5. As described above, the opening 31 is provided in the reel cover 30 of the present embodiment. Therefore, as shown in FIGS. 5 and 6, the identification code 46 of the reels 40S and 40L can be exposed through the opening 31. Thus, an operator can check the identification code 46 (identification information) or read the identification code 46 with a code reader or the like.

[0019] Here, Figure 7 is an explanatory diagram showing an example of the opening area of ​​the opening 31. Figure 8 is an explanatory diagram of a comparative example tape feeder 120 with a reel 40S set. Figure 9 is an explanatory diagram of a comparative example tape feeder 120 with a reel 40L set. The comparative example tape feeder 120 differs from the tape feeder 20 of this embodiment in that it has a reel cover 130 that does not have an opening 31.

[0020] As shown in Figure 7, the opening 31 has a first region A1 and a second region A2 as opening areas. In Figure 7, the annular region Ar is shown by a dashed line, with an inner diameter Ri from the center of the reel 40 (40S) to the edge of the winding core 42 and an outer diameter Ro from the center of the reel 40 (40S) to the upper edge of the reel cover 30. The first region A1 is a part of the lower side of the annular region Ar. The second region A2 has a shape that is like the first region A1 extended radially outward overall, and is a region continuous with the first region A1. If the identification code 46 is attached to the reel 40 so that it is located in the annular region Ar, when the reel 40 is rotated, the identification code 46 may not be exposed from the upper edge of the reel cover 30 (see Figure 8), or only a part of the identification code 46 may be exposed (see Figure 9). Therefore, in the comparative example tape feeder 120, which does not have an opening 31, the operator needs to open the reel cover 130 in order to check and read the identification code 46.

[0021] In contrast, in this embodiment, an opening 31 is formed in the reel cover 30, and this opening 31 has a first region A1. Therefore, even if the identification code 46 is assigned to the annular region Ar, the operator can rotate the reel 40 to position the identification code 46 within the opening 31, thereby allowing the operator to check and read the identification code 46 without opening the reel cover 30 (see Figures 5 and 6). Furthermore, since the opening 31 also has a second region A2, even if the identification code 46 is only partially exposed from the upper edge of the reel cover 30, the operator can check and read the identification code 46 without opening the reel cover 30 (see Figure 6).

[0022] Furthermore, the opening 31 is formed to be in an area inside the outer edge of the smallest diameter reel 40S (see Figure 5). Therefore, the outer edge of the reel 40 is not located inside the opening 31, thus preventing the outer edge of the reel 40 from protruding out of the opening 31. Consequently, even if the reel cover 30 is provided with an opening 31, problems such as the outer edge of the reel 40 protruding from the opening 31 colliding with the adjacent tape feeder 20 when attaching or detaching the reel 40 can be prevented.

[0023] Here, the correspondence between the components of this embodiment and the components of the present disclosure will be clarified. In this embodiment, the tape feeder 20 corresponds to the feeder, the reel holder 26 corresponds to the holding part, the reel cover 30 corresponds to the cover, and the opening 31 corresponds to the opening. The head 14 corresponds to the mounting head, and the component mounting machine 10 corresponds to the component mounting machine. In addition, this embodiment also clarifies an example of the component mounting method of the present disclosure.

[0024] In the tape feeder 20 of this embodiment described above, the reel cover 30 has an opening 31 formed in a location corresponding to the area on the reel 40 to which the identification code 46 can be applied, so that the identification code 46 (identification information) can be easily read. Furthermore, if the reel cover 30 is made of a transparent resin material, the transparency may decrease over time, making it difficult to read the identification code, but in this embodiment, it is not affected by such aging. In addition, since the reel cover 30 is made of a single metal plate with the opening 31 formed therein, it is possible to easily read the identification code 46 while having a simpler structure with fewer parts compared to a structure in which the reel cover 30 is divided into multiple metal plates.

[0025] Furthermore, when the reel cover 30 is closed, it exposes a portion of the surface of the reel 40 (the surface of the disc portion 44) above its upper edge. The opening 31 is formed to include a portion of the annular region Ar, specifically the first region A1. Therefore, even if the identification code 46 is assigned to a region that is not exposed from the reel cover 30 when the reel 40 is rotated, it can be easily read through the opening 31.

[0026] Furthermore, since the opening 31 is formed to include a second region A2 which is an extension of the first region A1 radially outward, the identification code 46 can be read even more easily.

[0027] Furthermore, since the opening 31 is formed to be in an area inside the outer edge of the smallest diameter reel 40S, it is possible to prevent the outer edge of the reel 40 from protruding from the opening 31 and colliding with an adjacent tape feeder 20 or the like.

[0028] It goes without saying that this disclosure is not limited in any way to the embodiments described above, and can be implemented in various forms as long as they fall within the technical scope of this disclosure.

[0029] For example, in the embodiment described above, the opening 31 was formed to be in a region inside the outer edge of the smallest diameter reel 40S, but it is not limited to this, and may be formed to include a region outside the outer edge of the smallest diameter reel 40S.

[0030] In the embodiment described above, the opening 31 was formed to include a second region A2 which is an extension of the first region A1 radially outward, but it is not limited to this, and it is sufficient if it is formed to include at least the first region A1. Alternatively, the opening 31 is not limited to including the first region A1 which is part of the annular region Ar, but is formed in a location corresponding to a region on which an identification code 46 can be assigned to the reel 40. [Industrial applicability]

[0031] This disclosure can be used in fields such as component mounting. [Explanation of Symbols]

[0032] 10 Component mounting machine, 11 Board transport device, 14 Head, 15 Moving device, 16 Feeder stand, 17 Slot, 18 Positioning hole, 19 Connector, 20, 120 Tape feeder, 21 Feeder body, 22 Positioning pin, 23 Connector, 26 Reel holder, 26a Holding shaft, 27, 28 Locking mechanism, 30, 130 Reel cover, 31 Opening, 32 Support shaft, 40, 40L, 40S Reel, 42 Winding core, 42a Center hole, 44 Disc part, 44a Cutout window, 46 Identification code, A1 First area, A2 Second area, Ar Annular area, Ri Inner diameter, Ro Outer diameter, S Substrate, T Tape.

Claims

1. A feeder that supplies components by sending out a tape containing the components, A feeder body is provided with a holding part that holds a disc-shaped reel around which the tape is wound so that it can rotate around a central axis, A plate-shaped cover that opens and closes the aforementioned holding part, Equipped with, The cover has an opening formed in a portion of the reel's surface corresponding to the area to which the reel's identification code can be assigned, and in the closed state, a portion of the reel's surface above the upper edge is exposed. The opening is formed to include a portion of an annular region whose inner diameter is the edge of the component of the central axis of the reel and whose outer diameter is from the central axis to the upper edge of the cover. feeder.

2. A feeder according to claim 1, The opening is formed to include the aforementioned portion of the region and a region that extends radially outward from the aforementioned portion. feeder.

3. A feeder according to claim 1 or 2, The opening is formed to be in a region inside the outer edge of the smallest diameter reel among the reels held by the holding portion. feeder.

4. A feeder according to any one of claims 1 to 3, A mounting head that collects components supplied from the feeder and mounts them onto an object, A component mounting machine equipped with the following features.

5. (a) the step of supplying components from a feeder according to any one of claims 1 to 3, (b) A step of taking the parts supplied in step (a) and mounting them onto the object, A component mounting method that includes this.

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