JP6484820B2 - Component supply apparatus and component supply method - Google Patents

Description

  The present invention relates to a component supply apparatus and a component supply method for removing a tray for storing components from a magazine and moving the tray to a component supply position.

  2. Description of the Related Art Conventionally, there has been known a component supply device that takes out a pallet mounted with a tray containing a plurality of components from a magazine and moves the pallet to a component supply position where components are picked up by a component mounting apparatus (see Patent Document 1). The component supply device described in Patent Document 1 holds a table unit having a plurality of first standby tables for holding a pallet taken out from a magazine in upper and lower stages, and a pallet received from the first standby table at a component supply position. A second standby table is provided.

  When exchanging a pallet for supplying a component to the component mounting apparatus, first, a pallet on which a tray before use for storing the component is loaded is pulled out from the magazine and placed on the plurality of first standby tables. When the tray on the second standby table becomes empty, the pallet on which the used tray is mounted is collected on the first standby table, and the pallet waiting on the first standby table is recovered. It is pulled out to the second standby table.

Japanese Patent Laid-Open No. 11-346091

  However, since the component supply device described in Patent Document 1 includes a drawer means for pulling out the pallet from the magazine in each of the plurality of first standby tables, the table unit becomes larger and the larger table unit is moved up and down. There is a problem in that the component supply device is increased in size in order to move up and down.

  Therefore, an object of the present invention is to provide a component supply apparatus and a component supply method that can efficiently replace a tray without increasing the size of the apparatus.

  The component supply apparatus of the present invention includes a magazine for stacking and storing pallets equipped with trays for storing components, a table unit provided in front of the magazine, and a plurality of standby tables provided in upper and lower stages. A table including a first elevating unit that moves the table unit up and down, and a pallet supply unit that is provided in front of the table unit and includes a supply table that holds the pallet at a component supply position to which the components are supplied. The unit includes first loading / unloading means for loading / unloading the pallet between the magazine and the standby table, and second lifting / lowering means for moving the first loading / unloading means up and down. There is a second loading / unloading means for loading / unloading the pallet between the table and the supply table.

  The component supply method of the present invention includes a table unit provided in front of a magazine for stacking and storing pallets mounted with trays for storing components, and a plurality of standby tables provided in upper and lower stages, and the table unit. First elevating means that moves up and down, and a pallet supply unit that is provided in front of the table unit and has a supply table that holds the pallet at a component supply position to which the components are supplied. A component supply method using a component supply apparatus having a second loading / unloading means for loading and unloading the pallet between the standby table and the supply table, wherein the table unit is disposed between the magazine and the standby table. First loading / unloading means for loading / unloading the pallet and second lifting / lowering means for moving the first loading / unloading means up and down The a, the first loading and unloading means is moved up and down between the plurality of standby table, and out of said pallet between the standby table and the magazine in each standby table.

  According to the present invention, the tray can be efficiently exchanged without increasing the apparatus size.

The top view of the component mounting apparatus with which the component supply apparatus of one embodiment of this invention was mounted | worn The perspective view of the components supply apparatus of one embodiment of this invention Structure explanatory drawing of the components supply apparatus of one embodiment of this invention Explanatory drawing of a partial configuration of a component supply apparatus according to an embodiment of the present invention (A) (b) (c) Process explanatory drawing which shows the method of transferring the pallet to the components supply position in the components supply apparatus of one embodiment of this invention. The flowchart which shows the pallet replacement | exchange method in the components supply apparatus of one embodiment of this invention (A) (b) Process explanatory drawing which shows the pallet replacement | exchange method in the components supply apparatus of one embodiment of this invention (A) (b) Process explanatory drawing which shows the pallet replacement | exchange method in the components supply apparatus of one embodiment of this invention (A) (b) Process explanatory drawing which shows the pallet replacement | exchange method in the components supply apparatus of one embodiment of this invention

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The configuration, shape, and the like described below are illustrative examples, and can be appropriately changed according to the specifications of the component mounting apparatus and the component supply apparatus (tray feeder). Below, the same code | symbol is attached | subjected to the element which respond | corresponds in all the drawings, and the overlapping description is abbreviate | omitted. In FIG. 1 and a part to be described later, as a biaxial direction orthogonal to each other in a horizontal plane, an X direction (horizontal direction in FIG. 1) in the substrate transport direction and a Y direction (vertical direction in FIG. 1) orthogonal to the substrate transport direction. Is shown. In FIG. 2 and a part to be described later, the Z direction is shown as the height direction orthogonal to the horizontal plane. The Z direction is a vertical direction or an orthogonal direction when the component mounting apparatus is installed on a horizontal plane.

  First, the configuration of the component mounting apparatus 1 will be described with reference to FIG. In FIG. 1, a substrate transport mechanism 2 is arranged in the X direction on the upper surface of a base 1a. The board transport mechanism 2 transports the board 3 as a component mounting target, and positions and holds it at a work position by the component mounting mechanism described below. Component supply units 4A and 4B for supplying components to be mounted on the substrate 3 are disposed on both sides of the substrate transport mechanism 2.

  A component supply device 5 (tray feeder) is disposed in the component supply unit 4A. The component supply device 5 moves the pallet 7 on which trays 6 (two in this case) for storing the components P in a lattice arrangement are mounted to a component supply position for supplying the components P to the component mounting mechanism described below. A plurality of tape feeders 8 are arranged in parallel in the component supply unit 4B. The tape feeder 8 supplies the component P to the component mounting mechanism by pitch-feeding the carrier tape holding the component P.

  A Y-axis beam 9 having a linear drive mechanism is disposed at one end in the X direction on the upper surface of the base 1a. Similarly, two X-axis beams 10 each having a linear drive mechanism are coupled to the Y-axis beam 9 so as to be movable in the Y direction. A mounting head 11 is mounted on each of the two X-axis beams 10 so as to be movable in the X direction. The mounting head 11 is a multiple head having a plurality of holding heads, and a suction nozzle that sucks the component P is attached to the lower end of each holding head.

  By driving the Y-axis beam 9 and the X-axis beam 10, the mounting head 11 moves horizontally (X direction, Y direction) between the component supply units 4A and 4B and the substrate 3 held by the substrate transport mechanism 2. The components P supplied by the component supply units 4A and 4B are taken out by the suction nozzle and mounted on the substrate 3. Therefore, the Y-axis beam 9, the X-axis beam 10, and the mounting head 11 constitute a component mounting mechanism that mounts the component P on the substrate 3 by the suction nozzle.

  A component recognition camera 12 is disposed between the component supply units 4A and 4B and the substrate transport mechanism 2. When the mounting head 11 that has taken out the component P from the component supply units 4 </ b> A and 4 </ b> B moves above the component recognition camera 12, the component recognition camera 12 images the component P held by the mounting head 11. Thereby, the identification and position recognition of the component P held by the mounting head 11 are performed. The mounting head 11 is mounted with a substrate recognition camera 13 that is positioned on the lower surface side of the X-axis beam 10 and moves integrally with the mounting head 11. As the mounting head 11 moves, the substrate recognition camera 13 moves above the substrate 3 positioned and held by the substrate transport mechanism 2 and images the substrate 3. Thereby, the position recognition of the board | substrate 3 is performed.

  Next, the configuration of the component supply device 5 will be described with reference to FIGS. The component supply device 5 includes a carriage unit 20 that is movable on a work floor by wheels 21. On the upper surface of the carriage unit 20, a rack unit 22, a pallet standby unit 23, and a pallet supply unit 24 are provided. In the rack portion 22, a plurality (two in this case) of magazine holding portions 25 for storing magazines 40 for stacking and storing pallets 7 for mounting the trays 6 for storing the components P are arranged in the vertical direction. Yes.

  On the operation side of the rack section 22 by the operator, a door 25b that can be opened in the vertical direction (arrow a in FIG. 3) is provided corresponding to the magazine entrance 25a of each magazine holding section 25. With the door 25b opened and the magazine entrance / exit 25a opened (upper side in FIG. 3), the magazine 40 is inserted / removed in the horizontal direction from the magazine entrance / exit 25a corresponding to the door 25b. When the door 25b is closed, the magazine doorway 25a corresponding to the door 25b is closed (the state on the lower side in FIG. 3). As described above, the rack portion 22 has a plurality of magazine holding portions 25 arranged in the vertical direction, and the magazine 40 inserted in the horizontal direction from the magazine inlet / outlet 25 a provided corresponding to each magazine holding portion 25. Is held in the magazine holding unit 25.

  In FIG. 3, the pallet standby unit 23 is provided in front of the rack unit 22 (on the side opposite to the operation side by the operator), and includes a table unit 50 and a first lifting mechanism 26. The first elevating mechanism 26 includes a ball screw 26a extending in the vertical direction and a motor 26b that rotationally drives the ball screw 26a. The 1st raising / lowering mechanism 26 drives the motor 26b, and raises / lowers the table unit 50 (arrow b). That is, the first elevating mechanism 26 serves as first elevating means for moving the table unit 50 up and down.

  In FIG. 4, the table unit 50 includes a standby table 51, a first engagement mechanism 52, and a second lifting mechanism 54. The standby table 51 holds the pallet 7 to be transferred on its upper surface. In the table unit 50, a plurality of (here, two) standby tables 51 are arranged in the vertical direction. Hereinafter, of the two standby tables 51, the upper part is referred to as a second floor standby table 51A, and the lower part is referred to as a first floor standby table 51B.

  The first engagement mechanism 52 includes a first engagement tool 52 a and a first movement mechanism 53. The first moving mechanism 53 has a motor 53a, and drives the motor 53a to move the first engagement tool 52a in the front-rear direction (arrow c). The second elevating mechanism 54 includes a ball screw 54a extending in the vertical direction and a motor 54b that rotationally drives the ball screw 54a. The second elevating mechanism 54 drives the motor 54b to elevate the first engagement mechanism 52 (arrow d). That is, the second elevating mechanism 54 serves as second elevating means for moving the first engagement mechanism 52 (first taking in / out means) up and down.

  The second elevating mechanism 54 moves the first engaging mechanism 52 up and down to move the first engaging tool 52a to the second floor position H2 of the upper surface of the second floor standby table 51A and the upper surface of the first floor standby table 51B. The first floor position H1 and the retreat position H0 below the first floor standby table 51B are positioned.

  The loading / unloading of the pallet 7 between the magazine 40 and the second-floor standby table 51A is performed as follows. First, the table unit 50 positions the first engagement tool 52a at the second floor position H2. Next, the first elevating mechanism 26 is located in front of the magazine 40 in which the pallet 7 to be taken out is stored (specifically, the pallet take-out port provided corresponding to the magazine holding portion 25 holding the magazine 40). The second-floor standby table 51A is positioned at the transfer height (in front of 25c).

  Then, the table unit 50 moves the first engagement tool 52 a to the pallet take-out port 25 c (in the direction of the magazine 40) and engages it with the engagement portion 7 a provided in front of the pallet 7. In this state, the table unit 50 pulls the pallet 7 to the second-floor standby table 51A by moving the first engagement tool 52a forward (see also FIG. 5A). Further, the table unit 50 moves the first engagement tool 52a to the pallet take-out port 25c (in the direction of the magazine 40) while the first engagement tool 52a is engaged with the engagement portion 7a. Is stored in the magazine 40.

  Further, the pallet 7 is put in and out between the magazine 40 and the first-floor standby table 51B in the same manner with the first engagement tool 52a positioned at the first-floor position H1. As described above, the table unit 50 is provided in front of the magazine 40, and is provided with a plurality of standby tables 51 (second floor standby table 51A, first floor standby table 51B). The table unit 50 includes a first engagement mechanism 52 (first loading / unloading means) for loading and unloading the pallet 7 between the magazine 40 and the standby table 51, and a second engagement mechanism 52 for moving the first engagement mechanism 52 up and down. It has an elevating mechanism 54 (second elevating means). Thereby, the pallet 7 (tray 6) can be efficiently replaced without increasing the size of the component supply device 5.

  In FIG. 4, the pallet supply unit 24 is provided in front of the pallet standby unit 23 (on the side opposite to the operation side by the operator), and includes a supply table 61 and a second engagement mechanism 62. The supply table 61 holds the pallet 7 received from the second-floor standby table 51A or the first-floor standby table 51B of the table unit 50 at the component supply position for supplying the component P. The second engagement mechanism 62 includes a second engagement tool 62 a and a second movement mechanism 63. The second moving mechanism 63 has a motor 63a, and drives the motor 63a to move the second engagement tool 62a in the front-rear direction (arrow e).

  Next, the operations of the pallet standby unit 23 and the pallet supply unit 24 until the pallet 7 stored in the magazine 40 is taken out and moved to the component supply position of the supply table 61 will be described with reference to FIG. Here, the pallet standby unit 23 will be described as an example in which the pallet 7 is pulled out to the second floor standby table 51A. First, as shown in FIG. 5 (a), the pallet standby unit 23 moves the first engaging tool 52a to the second floor position H2 and moves to the transfer height of the pallet 7 to take out the second floor standby table 51A. Then, the first engagement tool 52a is engaged with the engagement portion 7a of the pallet 7 and pulled out (arrow f).

  Next, as shown in FIG. 5B, when the pallet standby unit 23 moves the pallet 7 to the second floor standby position of the second floor standby table 51A, the pallet standby table 51A is moved to the supply transfer height of the supply table 61. Move. In this state, the pallet supply unit 24 engages the second engagement tool 62a with the engagement unit 7a. Thereafter, the pallet standby unit 23 lowers the first engagement tool 52a to the first floor position H1 or the retracted position H0 that does not interfere with the pallet 7 moving in the front-rear direction. Next, as shown in FIG. 5C, the pallet supply unit 24 moves the second engagement tool 62a (arrow g) to move the pallet 7 to the component supply position.

  In this example, two engaging portions 7a, first engaging tools 52a, and second engaging tools 62a are provided. Each engagement portion 7a is provided with a first engagement position 7b with which the first engagement tool 52a engages and a second engagement position 7c with which the second engagement tool 62a engages. ing. Thereby, even if the first engaging tool 52a and the second engaging tool 62a are simultaneously engaged with the engaging portion 7a, the first engaging tool 52a and the second engaging tool 62a interfere with each other. There is no. Furthermore, each engaging part 7a is provided with a relief part 7d cut out from the engaging part 7a to the outer periphery. As a result, the pallet 7 and the first engagement tool 52a or the second engagement tool 62a are relative to each other in a state where the first engagement tool 52a or the second engagement tool 62a is positioned in the engagement portion 7a. Even if they move up and down, they do not interfere with each other.

  As described above, the pallet supply unit 24 includes the supply table 61 that holds the pallet 7 at the component supply position where the component P is supplied, and is provided in front of the table unit 50. The pallet supply unit 24 includes a supply engagement mechanism 62 (second insertion / removal means) for taking in and out the pallet 7 between the standby table 51 (second floor standby table 51A, first floor standby table 51B) and the supply table 61. ing.

  Next, the configuration of the control system of the component supply device 5 will be described. The component supply device 5 includes a control unit 30 and a storage unit 31. The control unit 30 controls the motor 26b, the motor 53a, the motor 54b, and the motor 63a based on the work parameters stored in the storage unit 31, and causes the pallet 7 to be replaced at the component supply position.

  In a state where the component supply device 5 is mounted on the component mounting device 1, the control unit 30 is connected to a mounting control unit (not shown) included in the component mounting device 1. The control unit 30 supplies the component P requested by the component mounting apparatus 1 to the component supply position by exchanging signals with the mounting control unit.

  Next, in accordance with the flow of FIG. 6, a pallet replacement method (component supply method) for supplying the component P while replacing the pallet 7 supplied to the component supply position in the component supply device 5 with reference to FIGS. Will be described. In FIG. 8A, the magazine 40 held by the magazine holding unit 25 is provided with six stages of shelves 41 (1) to 41 (6) in the vertical direction. Further, the pallet 7 (1) taken out from the uppermost shelf 41 (1) is held at the component supply position of the supply table 61. From the tray 6 (1) mounted on the pallet 7 (1). The component P is continuously taken out by the mounting head 11.

  From this state, the pallet 7 (1) (hereinafter referred to as “empty pallet 7 (1) *”) in which the tray 6 (1) from which all the parts P have been taken out and mounted is emptied is mounted. The component P is stored in the tray 6 (2) and the component supply pallet 7 (2) stored in the second shelf 41 (2) from the top (hereinafter referred to as "supply pallet 7 (2)"). .) And how to replace the pallet.

  In FIG. 6, the first engagement tool 52a is moved to the second floor position H2, and the second floor standby table 51A is moved to a transfer height for drawing the supply pallet 7 (2) from the shelf 41 (2) (ST1). Next, the first engaging tool 52a is engaged with the engaging portion 7a of the supply pallet 7 (2), and the supply pallet 7 (2) is carried into the second-floor standby table 51A (arrow h in FIG. 7A). (ST2). Next, the first-floor standby table 51B is raised to the supply transfer height at which the pallet 7 is exchanged with the supply table 61 (arrow j in FIG. 7B) (ST3). Next, the first engagement tool 52a is lowered to the retracted position H0 (arrow k in FIG. 7B) (ST4). In this state, the apparatus waits until the component P of the tray 6 (1) of the pallet 7 (1) is taken out and the tray 6 (1) becomes empty.

  Note that the lowering (ST4) of the first engaging tool 52a may be executed in parallel with the raising (ST3) of the first-floor standby table 51B. That is, the vertical movement of the table unit 50 of the table unit lift mechanism 26 (first lifting means) and the vertical movement of the first engagement mechanism 52 (first loading / unloading means) of the second lifting mechanism 54 (second lifting means). It may be operated independently of. Thereby, the pallet 7 can be exchanged efficiently.

  In FIG. 6, when the part P of the tray 6 (1) of the pallet 7 (1) becomes empty, the empty pallet 7 (1) * is carried out to the first-floor standby table 51B (arrow m in FIG. 8 (a)). ST5). At this time, the first engagement tool 52a is in the retracted position H0 where it does not interfere with the empty pallet 7 (1) * carried out to the first floor standby table 51B. Next, the second-floor standby table 51A is lowered to the supply height (arrow n in FIG. 8B) (ST6), and the supply pallet 7 (2) is carried into the supply table 61 (arrow p in FIG. 9A) ( ST7).

  At this time, the first engaging tool 52a is in the retracted position H0 or the first floor position H1 that does not interfere with the supply pallet 7 (2) carried out to the supply table 61. That is, in the second elevating mechanism 54 (second elevating means), the second engaging mechanism 62 (second taking in / out means) supplies the pallet 7 (empty pallet 7 (1) *, supply pallet 7 (2)). When moving in and out of the table 61 (before) (ST5, ST7), the first engagement mechanism 52 (first loading / unloading means) is moved to a retracted position (retracted position H0, first floor position H1) that does not interfere with the pallet 7. Move. The retreat position H0 is at a position below the first floor position H1 when the first engagement mechanism 52 puts the pallet 7 in and out of the first floor standby table 51B.

  That is, the retreat position H0 includes a position below the first floor position H1 where the first engagement mechanism 52 (first loading / unloading means) loads and unloads the pallet 7 in the first floor waiting table 51B (the lowermost waiting table 51). It is out. In the case where the first engaging tool 52a of the first engaging mechanism 52 is engaged with the engaging portion 7a of the pallet from above, the retracted position H0 is the second floor standby table 51A (the uppermost standby table). 51), the first engagement mechanism 52 (first take-in / out means) is positioned above the second floor position H2 where the pallet 7 is taken in / out. Accordingly, it is possible to prevent the first engagement mechanism 52 from interfering with the pallet 7 that is taken in and out by the second engagement mechanism 62.

  In (ST5), the empty pallet 7 (1) * held by the supply table 61 is carried out to the first floor standby table 51B while the supply pallet 7 (2) is held on the second floor standby table 51A. In (ST7), the replenishment pallet 7 (2) held by the second-floor standby table 51A is carried into the supply table 61 with the empty pallet 7 (1) * held by the first-floor standby table 51B. That is, in a state where the pallet 7 is held in one of the plurality of standby tables 51, the pallet 7 is put in and out between the standby table 51 different from the one standby table 51 and the supply table 61. . Thereby, the replacement time of the pallet 7 can be reduced, and the pallet 7 can be replaced efficiently.

  In FIG. 6, the first engagement tool 52a is then moved to the first floor position H1 (arrow q in FIG. 9A) (ST8). Note that the vertical movement (ST8) of the first engagement tool 52a may be executed in parallel with the lowering (ST6) of the second-floor standby table 51A and the unloading (ST7) of the supply pallet 7 (2). That is, the second engagement mechanism 62 (second loading / unloading means) moves the pallet 7 (empty pallet 7 (1) *, supply pallet 7 (2)) into and out of the supply table 61 and the second lifting mechanism 54 ( The first engaging mechanism 52 (first taking-in / out means) of the second elevating means may be operated independently of the vertical movement. Thereby, the pallet 7 can be exchanged efficiently.

  In FIG. 6, next, the first-floor standby table 51B is moved to the transfer height at which the empty pallet 7 (1) * is stored on the shelf 41 (1) (arrow r in FIG. 9B) (ST9), and the empty pallet 7 ( 1) Unload * into the shelf 41 (1) of the magazine 40 (arrow s in FIG. 9B) (ST10). Thereafter, similarly, the empty pallet 7 at the component supply position is sequentially replaced with the component supply pallet 7 stored in the magazine 40.

  As described above, in the pallet replacement method (part supply method) of the present embodiment, the first engagement mechanism 52 (first loading / unloading means) includes a plurality of standby tables 51 (second floor standby table 51A, first floor). The pallet 7 is moved in and out between the magazine 40 and the standby table 51 in each standby table 51. Thereby, the pallet 7 (tray 6) can be efficiently replaced without increasing the size of the component supply device 5.

  The component supply device and the component supply method of the present invention have an effect that the tray can be efficiently exchanged without increasing the size of the device, and are useful in the component mounting field where components are mounted on a substrate.

DESCRIPTION OF SYMBOLS 5 Component supply apparatus 6 Tray 7 Pallet 24 Pallet supply part 26 1st raising / lowering mechanism (1st raising / lowering means)
40 magazine 50 table unit 51A 2nd floor standby table (standby table)
51B 1st floor standby table (standby table)
52 1st engagement mechanism (1st taking-in / out means)
54 Second lifting mechanism (second lifting means)
61 Supply table 62 Second engagement mechanism (second loading / unloading means)
P parts

Claims (8)

A magazine for stacking and storing pallets with trays for storing parts;
A table unit provided in front of the magazine and provided with a plurality of standby tables in upper and lower stages;
First elevating means for moving the table unit up and down;
A pallet supply unit provided in front of the table unit and having a supply table for holding the pallet at a component supply position to which the components are supplied;
The table unit is
First loading / unloading means for loading / unloading the pallet between the magazine and the standby table;
Second elevating means for moving the first taking in / out means up and down,
The pallet supply unit is a component supply device having a second loading / unloading means for loading / unloading the pallet between the standby table and the supply table.   2. The component supply apparatus according to claim 1, wherein the second lifting / lowering unit moves the first loading / unloading unit to a retracted position that does not interfere with the pallet when the second loading / unloading unit loads / unloads the pallet.   The retracted position is a position above the position where the first loading / unloading means loads / removes the pallet to / from the uppermost standby table, or from the position where the first loading / unloading means moves to / from the lowermost standby table. The component supply apparatus according to claim 2, comprising a lower position.   4. The component supply device according to claim 1, wherein the vertical movement of the table unit of the first lifting means and the vertical movement of the first loading / unloading means of the second lifting means operate independently. 5.   5. The component supply apparatus according to claim 1, wherein the second loading / unloading unit operates independently of the movement of loading / unloading the pallet and the vertical movement of the first loading / unloading unit of the second lifting / lowering unit. A table unit provided in front of a magazine for stacking and storing pallets mounted with trays for storing components, and a plurality of standby tables provided in multiple upper and lower stages; and a first lifting means for moving the table unit up and down A pallet supply unit provided in front of the table unit and having a supply table for holding the pallet at a component supply position to which the components are supplied, the pallet supply unit including the standby table and the supply table A component supply method using a component supply device having a second loading / unloading means for loading / unloading the pallet between
The table unit includes first loading / unloading means for loading / unloading the pallet between the magazine and the standby table, and second lifting / lowering means for moving the first loading / unloading means up and down.
The first loading / unloading means moves up and down between the plurality of standby tables, and the parts supply method for loading and unloading the pallet between the magazine and the standby table in each standby table.   The pallet is taken in and out between a standby table different from the one standby table and the supply table in a state where the pallet is held in one standby table of the plurality of standby tables. Parts supply method.   8. The component supply method according to claim 6, wherein the first loading / unloading unit moves to a retracted position that does not interfere with the pallet before the second loading / unloading unit loads / unloads the pallet.

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