Pusher device for stick feeder and stick feeder equipped with same

Abstract

To provide a stick feeder pusher device capable of moving a component to a component supply location with high accuracy and a stick feeder.SOLUTION: A pusher device (100) for a stick feeder (4) includes a wire (26) driven to pass through a stick (ST1) of the stick feeder (4) and a pusher (24) that is attached to the wire (26) and pushes out a component (P) accommodated in the stick (ST1) toward a component supply location (21b). The pusher (24) is rotatably attached to the wire (26).SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a pusher device for a stick feeder and a stick feeder including the same. [Background technology]

[0002] In a component mounting system that mounts electronic components on a board, a component mounting operation is repeatedly performed in which electronic components are picked up from a component supply device set in a component mounting device and transferred and mounted on a board.

[0003] 2. Description of the Related Art As a component supplying device, a stick feeder using a long, hollow stick case that houses a plurality of electronic components, as described in Patent Document 1, is known.

[0004] The stick feeder of Patent Document 1 is provided with a pusher device that pushes out the components housed in the stick toward a component supply position. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-069502 Summary of the Invention [Problem to be solved by the invention]

[0006] In the stick feeder described in Patent Document 1, when components are sent to the component supply position using a pusher device, clogging or falling off may occur, and there is room for improvement in terms of moving components to the component supply position with high accuracy.

[0007] Therefore, the present disclosure provides a pusher device for a stick feeder that can move components to a component supply position with high precision, and a stick feeder that includes the same. [Means for solving the problem]

[0008] A pusher device for a stick feeder according to one aspect of the present disclosure comprises a wire that is driven to pass through the stick of the stick feeder, and a pusher attached to the wire that pushes out components contained in the stick toward a component supply position, the pusher being rotatably attached to the wire.

[0009] A stick feeder according to one aspect of the present disclosure includes a loading section for stacking multiple sticks, and a pusher device for pushing a component contained in one of the multiple sticks toward the component supply position. [Effects of the Invention]

[0010] According to the pusher device for a stick feeder and the stick feeder including the same of the present disclosure, components can be moved to a component supply position with high precision. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic plan view showing a component mounting apparatus according to an embodiment of the present disclosure; [Figure 2] A block diagram showing the system configuration of the component mounting device of FIG. 1. [Figure 3] FIG. 2 is a schematic side view illustrating the mounting head of the component mounting apparatus of FIG. 1; [Figure 4] FIG. 2 is a schematic perspective view showing a stick feeder arranged in the component mounting apparatus of FIG. 1; [Figure 5] Side view of the stick feeder in Figure 4 [Figure 6] Schematic diagram for explaining each component of the stick feeder in FIG. [Figure 7] 1 is a perspective view of a pusher device according to a first embodiment; [Figure 8] 1 is a perspective view of a pusher device according to a first embodiment; [Figure 9] 1 is an exploded perspective view of a pusher device according to a first embodiment; [Figure 10]1 is an exploded perspective view of a pusher device according to a first embodiment; [Figure 11] FIG. 1 is a perspective view showing a cross section of a pusher device according to a first embodiment; [Figure 12] FIG. 1 is a plan view showing a cross section of a pusher device according to a first embodiment; [Figure 13] FIG. 10 is a perspective view of a pusher device according to a second embodiment; [Figure 14] FIG. 10 is a perspective view of a pusher device according to a second embodiment; [Figure 15] FIG. 10 is a perspective view showing a cross section of a pusher device according to a second embodiment; [Figure 16] FIG. 10 is a plan view showing a cross section of a pusher device according to a second embodiment. [Figure 17] FIG. 10 is a perspective view of a holding member and a wire according to a second embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment will be described with reference to the drawings.

[0013] (Embodiment 1) [Overall configuration] Fig. 1 is a schematic diagram showing a component mounting apparatus 1 according to an embodiment of the present disclosure, and Fig. 2 is a block diagram showing a system configuration of the component mounting apparatus 1 of Fig. 1.

[0014] <Component placement device> 1 and 2, component mounting apparatus 1 is an apparatus that mounts components P, such as chip components or components with leads, on a substrate 3 on which the components are to be mounted. Component mounting apparatus 1 includes a component supply device 50, a mounting head 10, a mounting head moving device 12, a substrate transport unit 2, a component recognition unit 14, and an imaging control unit 16.

[0015] The board transport unit 2 is a device that transports the board 3 to a mounting work position located in the center of the base 1a and transports the board 3 from the mounting work position. More specifically, the board transport unit 2 transports the board 3 in the X direction, which is transported from the upstream side of a component mounting system (not shown) including the component mounting device 1, and positions and holds the board 3 at the mounting work position. When the component mounting work is completed, the board transport unit 2 transports the board 3 downstream of the component mounting system.

[0016] The component supply devices 50 are arranged at both ends of the base 1a in the Y direction. The component supply device 50 includes a stick feeder 4, a tape feeder 5, and a tray feeder 7 as multiple component supply devices. Specifically, multiple stick feeders 4 are arranged along the X direction on one side of the base 1a in FIG. 1. Additionally, multiple tape feeders 5 are arranged along the X direction on the other side of the base 1a in FIG. 1. Additionally, a tray feeder 7 having a component tray 6 is arranged next to the multiple tape feeders 5.

[0017] The component supply devices, stick feeder 4, tape feeder 5, and tray feeder 7, supply components P to be mounted on board 3.

[0018] The mounting head moving device 12 includes a Y-axis table 8 and a beam 9. The Y-axis table 8 has linear drive devices on both ends in the X direction on the upper surface of the base 1a. The beam 9 has similar linear drive devices and is connected to the Y-axis table 8. A mounting head 10 is attached to the beam 9 so that it can move in the X direction. The beam 9 moves in the Y direction due to the linear drive device provided in the Y-axis table 8. The beam 9 also moves the mounting head 10 in the X direction due to the linear drive device provided in the beam 9.

[0019] The mounting head moving device 12 controls the linear drive device described above to move the mounting head 10 to the component supply position 21b (see FIG. 4) of the stick feeder 4, the component supply position of the tape feeder 5, or the component supply position of the component tray 6. The components P picked up by the mounting head 10 at the component supply position 21b are transferred to the mounting position on the board 3 held by the board transport unit 2 and mounted thereon. The component mounting device 1 repeatedly executes the series of processes from transporting the board 3 to mounting the components P described above.

[0020] FIG. 3 is a schematic diagram illustrating the mounting head 10 of the component mounting apparatus 1 of FIG. 1. As shown in FIG. 3, the mounting head 10 includes multiple mounting units 10a each having an elevation drive device. Four nozzles 11 for holding components P are arranged in the X direction at the bottom end of each mounting unit 10a. The nozzles 11 can hold components P, for example, by vacuum suction. Each mounting unit 10a drives the elevation drive device to raise and lower the nozzle 11 (arrow a). The mounting head 10 also includes a nozzle rotation device 10c that rotates the nozzle 11 (arrow b) around a nozzle axis AN in the Z direction.

[0021] 2, the component recognition unit 14 includes a camera 14a, a first light source 14b, and a second light source 14c. The camera 14a captures an image of the component held by the nozzle 11. The first light source 14b and the second light source 14c are lights that illuminate the component P that is captured by the camera 14a.

[0022] When the mounting head 10 is positioned above the component recognition unit 14, the camera 14a captures an image of the component P held by the nozzle 11 from below, i.e., in the Z+ direction in Fig. 3. Based on the image of the component P captured by the camera 14a, the polarity of the component P can be recognized and the lead wires can be aligned.

[0023] The imaging control unit 16 controls the camera 14a, first light source 14b, and second light source 14c of the component recognition unit 14. For example, it can be configured with a CPU, MPU, DSP, FPGA, ASIC, etc. The functions of the imaging control unit 16 may be configured with hardware alone, or may be realized by combining hardware and software. The imaging control unit 16 realizes predetermined functions by reading data and programs stored in a storage area (not shown) within the imaging control unit 16 and performing various arithmetic processing.

[0024] <Component placement device operation> Here, we will explain the operation of the component mounting device 1. The component mounting device 1 is a device that mounts components P supplied from a component supply device 50 (e.g., stick feeder 4) onto a board 3 that is carried in from the upstream of a component mounting system (not shown). A board transport unit 2 transports the board 3 from the upstream of the component mounting system to a component mounting position. Next, the mounting head moving device 12 moves the mounting head 10 to pick up the component P supplied from the component supply device 50, and a component recognition unit 14 identifies the polarity of the component P and the position of its lead wire.

[0025] Based on the identified polarity of component P and the position of the lead wire, mounting head moving device 12 further moves mounting head 10 to mount component P on board 3. Once mounting of component P on board 3 is complete, board transport unit 2 removes board 3 and then loads into component mounting device 1 the next board 3 onto which component P is to be mounted.

[0026] <Stick feeder> Fig. 4 is a schematic perspective view showing the configuration of stick feeder 4 arranged in component mounting apparatus 1 of Fig. 1. Fig. 5 is a side view of stick feeder 4 of Fig. 4. Fig. 6 is a schematic view for explaining each component of stick feeder 4 of Fig. 4.

[0027] As shown in Figures 4 and 5, the stick feeder 4 includes a loading unit 23, a feeder 21, a component sensor 22 (see Figure 6), a pusher 24, a pusher drive unit 25 (see Figure 2), and a control unit 32 (see Figure 2).

[0028] Each component of the stick feeder 4 will be described with reference to FIG. 6. The loading section 23 stacks a plurality of sticks ST. The plurality of sticks ST has one end and the other end, and contains a plurality of components P inside. In this embodiment, the plurality of sticks ST are formed in a cylindrical shape, and contain a plurality of components P arranged in a line inside. Here, stacking a plurality of sticks ST means stacking the sticks ST in the +Z direction.

[0029] The feeder 21 is a member that is connected to one end E1 of one stick ST1 (hereinafter referred to as stick ST1) among the multiple sticks ST and forms a "component passage" through which multiple components P supplied from the stick ST1 pass. That is, the feeder 21 has an inlet 21a connected to one end E1 of the stick ST1. The feeder 21 has a component supply position 21b at the end opposite the inlet 21a. The component passage of the feeder 21 refers to the path along which the components P pass from one end E1 of the stick ST1 to the component supply position 21b. In this embodiment, as shown in FIG. 6, the feeder 21 has a support that supports the multiple components P in the +Z direction, but a gap may be formed between the stick ST1 and the support to prevent the components P from falling.

[0030] In the feeder 21, a plurality of components P that have passed through the entrance 21a are arranged in a component passage, and one of these components P that is positioned at the component supply position 21b is picked up by the mounting head 10.

[0031] The component sensor 22 is disposed at the component supply position 21b of the feeder 21. The component sensor 22 is a sensor that detects the presence or absence of the component P or the pusher 24 at the component supply position 21b. That is, the component sensor 22 outputs an ON signal when the component P or the pusher 24 is located at the component supply position 21b, and outputs an OFF signal when neither the component P nor the pusher 24 is located at the component supply position 21b. The ON / OFF signal of the component sensor 22 is transmitted to the control unit 32, which will be described later. The component sensor 22 may be, for example, a photo sensor or other sensor that can detect the presence or absence of the component P or the pusher 24.

[0032] The pusher 24 passes through the stick ST1 from a starting point S1 located outside the other end E2 of the stick ST1 and pushes the multiple components P contained inside the stick ST1 into the feeder 21 so as to be positioned at the component supply position 21b.

[0033] Pusher 24 can be moved back and forth in the Y direction by pusher driver 25 (see FIG. 2). Pusher 24 is connected to wire 26, and pusher 24 moves as pusher driver 25 moves wire 26 back and forth. When pusher 24 moves in the -Y direction from start point S1, it pushes out multiple components P contained in stick ST1 into feeder 21. After pushing out components P into feeder 21, pusher driver 25 moves pusher 24 in the +Y direction to return to start point S1.

[0034] In this embodiment, an origin sensor 29 is disposed at the start point S1 of the pusher. The origin sensor 29 detects the presence or absence of an origin mark 24a provided on the pusher 24 at the start point S1. When the pusher 24 is located at the start point S1, the origin sensor 29 detects the presence of the origin mark 24a at the start point S1. As the origin sensor 29, for example, a sensor capable of detecting the presence or absence of the origin mark 24a, such as a photosensor, can be used.

[0035] In this embodiment, a pusher sensor 31 is disposed above the component passage outside one end E1 of the stick ST1. The pusher sensor 31 detects whether the pusher 24 is positioned at a predetermined position in the feeder 21. The predetermined position can be set to any position between the entrance 21a and the component supply position 21b of the feeder 21. In this embodiment, the predetermined position is set to a position in the feeder 21 that is closer to the entrance than the component supply position 21b. As shown in FIG. 6, the pusher sensor 31 is disposed above the component passage in the feeder 21 and detects that the pusher 24 has emerged from one end E1 of the stick ST1.

[0036] The pusher driving unit 25 moves the pusher 24 forward and backward in the Y direction. In this embodiment, the pusher driving unit 25 is configured with a servo motor (not shown) and a pair of rollers 27. The wire 26 moves forward and backward in the Y direction according to the direction and amount of rotation of the rollers 27. As the wire 26 moves, the pusher 24 moves in the +Y direction or the -Y direction.

[0037] That is, when roller 27 is rotationally driven in the -Y direction by pusher drive unit 25, wire 26 is sent in the -Y direction according to the amount of rotational drive of roller 27, and pusher 24 moves forward in the -Y direction. As a result, pusher 24 can push out multiple components P contained in stick ST1 toward feeder 21, and then pusher 24 can move back to start point S1.

[0038] On the other hand, when roller 27 is rotationally driven in the +Y direction by pusher drive unit 25, wire 26 is sent in the +Y direction according to the amount of rotational drive of roller 27, and pusher 24 retreats in the +Y direction. In this case, pusher drive unit 25 retreats pusher 24 until origin sensor 29 detects origin mark 24a at start point S1.

[0039] The portion of the wire 26 that extends outward beyond the roller 27 is housed in a tubular wire housing portion 28 and protected.

[0040] Control unit 32 controls pusher drive unit 25. In this embodiment, control unit 32 controls each component of stick feeder 4 based on the detection results of component sensor 22, pusher sensor 31, and origin sensor 29. Specifically, control unit 32 drives pusher drive unit 25 to move pusher 24 forward and backward. Control unit 32 controls the forward movement distance of the pusher based on the drive amount of the servo motor and the radius of roller 27.

[0041] The control unit 32 can be configured with, for example, a CPU, an MPU, a DSP, an FPGA, an ASIC, etc. The functions of the control unit 32 may be configured with hardware alone, or may be realized by combining hardware and software. The control unit 32 realizes predetermined functions by reading data and programs stored in a storage area (not shown) within the control unit 32 and performing various arithmetic processing.

[0042] A stick exchange lever 30 is disposed in the loading section 23. One end 30a of the stick exchange lever 30 supports the stick ST1, and the other end 30b supports the stick ST stacked on the stick ST1. A rotation center 30c is provided between the one end 30a and the other end 30b of the stick exchange lever 30. The stick exchange lever 30 rotates between a position in which the one end 30a supports the stick ST1 and a position in which the support for the stick ST1 is released and the other end 30b supports the stick ST above it. The rotation of the stick exchange lever 30 is controlled, for example, by the control section 32. When all the components P contained in the stick ST1 are pushed into the feeder 21 and the stick ST1 becomes empty, the pusher drive section 25 moves the pusher 24 back to the starting point S1. At this time, the stick ST1 can be replaced with the next stick ST.

[0043] Next, the pusher device of the first embodiment will be described with reference to FIG. 7 and subsequent drawings.

[0044] 7 and 8 are perspective views of the pusher device 100 of the embodiment 1. As shown in Fig. 7 and Fig. 8, the pusher device 100 includes a pusher 24, a wire 26, and an origin mark 24a.

[0045] In the pusher device 100 of the first embodiment, the pusher 24 is rotatably attached to the wire 26. The wire 26 has an axial direction A, and the pusher 24 is rotatable in a rotational direction R relative to the wire 26 around a rotation axis Ax that overlaps the axial direction A. As a result, when the pusher 24 travels inside the stick feeder 4, the inclination of the pusher 24 is automatically adjusted according to the travel path, which makes it possible to prevent clogging and falling off, and to accurately feed the component P to the component supply position 21b. The detailed configuration of the pusher device 100 will be described below.

[0046] The pusher 24 shown in FIGS. 7 and 8 includes a first member 102, a second member 104, and two fixing members 106A and 106B (FIG. 8).

[0047] The first member 102 and the second member 104 are block-shaped members that are attached to each other. The first member 102 is located on the distal end side A1 in the axial direction A, and the second member 104 is located on the proximal end side A2 in the axial direction A.

[0048] The first member 102 has an end face 107 and a tapered surface 108 (FIG. 7). The end face 107 is an end face on the tip side A1, and is a pressing surface for pressing the component P. The tapered surface 108 is a surface provided around the periphery of the end face 107, and has an inclined shape that tapers toward the tip side A1.

[0049] The second member 104 has an end face 109 and a tapered surface 110 (FIG. 8). The end face 109 is the end face of the base end side A2, and fixing members 106A and 106B, which will be described later, are inserted through the end face 109. The tapered surface 110 is a surface provided around the end face 109, and has an inclined shape that tapers toward the base end side A2.

[0050] The fixing members 106A and 106B are members for fixing the first member 102 and the second member 104 to each other. Both the fixing members 106A and 106B are inserted through the first member 102 and the second member 104, and connect the first member 102 and the second member 104 in the axial direction A. The fixing members 106A and 106B may be, for example, screws, which may be screwed into the respective through holes of the first member 102 and the second member 104.

[0051] 9 and 10 show exploded perspective views of the pusher device 100. Furthermore, a perspective view and a plan view showing a cross section of the pusher device 100 are shown in FIGS. 11 and 12, respectively.

[0052] 9, the first member 102 has two insertion holes 112A and 112B. The insertion holes 112A and 112B are holes for inserting the fixing members 106A and 106B, respectively, and open on the base end side A2 toward the second member 104.

[0053] 10 and 9, the second member 104 has insertion holes 114A and 114B. Similar to the insertion holes 112A and 112B, the insertion holes 114A and 114B are holes for inserting the fixing members 106A and 106B. The insertion holes 114A and 114B pass through the second member 104 in the axial direction A and are arranged to face the insertion holes 112A and 112B of the first member 102, respectively.

[0054] Each of the insertion holes 114A and 114B has a stepped outer shape with a smaller diameter at the tip side A1 (FIG. 10) and a larger diameter at the base side A2 (FIG. 9). The larger diameter portion at the base side A2 of the insertion holes 114A and 114B (FIG. 9) accommodates the heads of the fixing members 106A and 106B.

[0055] The first member 102 further forms an insertion hole 116 that is separate from the insertion holes 112A and 112B. Similarly, the second member 104 further forms an insertion hole 118 that is separate from the insertion holes 114A and 114B. The insertion holes 116 and 118 are both holes for inserting a holding member 120 (described later) therethrough, and are both through-holes.

[0056] The holding member 120 is a member for rotatably holding the pusher 24, which includes the first member 102 and the second member 104. The holding member 120 is connected to the wire 26, and by the holding member 120 holding the pusher 24, the pusher 24 is rotatably connected to the wire 26. The holding member 120 is attached to the tip end 26A of the wire 26 and is housed inside the pusher 24. The holding member 120 of the first embodiment is a rod-shaped member extending in the axial direction A and has a circular outer cross section.

[0057] 9, the holding member 120 has an attachment hole 122 formed on the base end side A2. The tip portion 26A of the wire 26 is inserted and press-fit into the attachment hole 122. This causes the wire 26 and the holding member 120 to rotate integrally.

[0058] As shown in Fig. 10, holding member 120 forms end surface 124 on tip side A1. End surface 124 is a generally flat surface with no holes formed therein. As shown in Figs. 7, 11, and 12, end surface 124 of embodiment 1 is exposed at opening 126 formed in end surface 107 of first member 102. An operator can visually check end surface 124 of holding member 120 through opening 126, and can confirm the attachment state of holding member 120.

[0059] In the first embodiment, in the assembled state of the pusher device 100 as shown in Figures 7, 11, and 12, the end surface 107 of the first member 102 and the end surface 124 of the holding member 120 are flush with each other. This allows the part P (not shown) to be pushed out stably and in a well-balanced manner when pressed by the end surfaces 107 and 124.

[0060] 9 to 12, the holding member 120 has an expanded diameter portion 128. The expanded diameter portion 128 is a portion of the holding member 120 that is expanded radially over a portion of the entire length in the axial direction A. The expanded diameter portion 128 is disposed in an insertion hole 116 formed in the first member 102.

[0061] As shown in FIGS. 11 and 12 , the insertion hole 116 of the first member 102 has a larger diameter than the insertion hole 118 of the second member 104. The diameter of the expanded diameter portion 128 is set to be smaller than the diameter of the insertion hole 116 but larger than the diameter of the insertion hole 118. The expanded diameter portion 128 arranged in the insertion hole 116 does not enter the insertion hole 118, but engages with the second member 104 that forms the insertion hole 118 in the axial direction A. The insertion hole 116 also narrows in diameter toward the tip side A1, and the expanded diameter portion 128 arranged in the insertion hole 116 also engages with the first member 102 in the axial direction A. As a result, the expanded diameter portion 128 is sandwiched between the first member 102 and the second member 104 in the axial direction A, and the positional relationship in the axial direction A is maintained.

[0062] 11 and 12 has a diameter slightly smaller than the diameters of the insertion holes 116 and 118. This allows the pusher 24 that houses the holding member 120 to rotate freely relative to the inner holding member 120, and rotates according to its own weight.

[0063] 9 and 10, the origin mark 24a is formed in a cylindrical shape, and the wire 26 is inserted therein. As shown in Figures 11 and 12, the origin mark 24a, with the wire 26 inserted therein, is press-fitted and fixed into the opening on the base end side A2 of the insertion hole 118 of the second member 104.

[0064] According to the above configuration, by attaching the pusher 24 rotatably to the wire 26, the inclination of the pusher 24 can be automatically adjusted according to its own weight when the pusher 24 travels along the path inside the stick feeder 4. This makes it possible to prevent the pusher 24 and the component P from clogging or falling off when pushing out and feeding the component P toward the component supply position 21b, and allows the component P to be fed to the component supply position 21b with high accuracy.

[0065] As shown in FIG. 6 and other figures, the pusher 24 enters the stick ST1 from the other end E2 of the stick ST1, travels along the stick ST1, transfers to the feeder 21 from one end E1 of the stick ST1, and travels along the component passage of the feeder 21 to the component supply position 21b. Because the wire 26 has a tendency to bend, the optimal posture of the pusher 24 changes depending on the slope of the path and the shape of the transfer point. Therefore, if the pusher 24 cannot rotate relative to the wire 26, it would be difficult to maintain the optimal posture of the pusher 24. In contrast, the pusher device 100 of the first embodiment is configured so that the pusher 24 can rotate, allowing the posture of the pusher 24 to naturally change depending on the shape of the path and the transfer point. This prevents the pusher 24 and components P from clogging or falling off, and allows the components P to be sent to the component supply position 21b with high accuracy.

[0066] 7 and 8, for example, the holding member 120 is housed between the first member 102 and the second member 104 so as to sandwich the holding member 120 in the axial direction A, and in this state, the first member 102 and the second member 104 are fixed using the fixing members 106A and 106B. Furthermore, the end 26A of the wire 26, which has been inserted through the origin mark 24a, is inserted into the mounting hole 122 of the holding member 120 and press-fitted, thereby assembling the pusher device 100.

[0067] Furthermore, when disassembling the pusher device 100 after assembly, the wire 26 is pulled out from the mounting hole 122 of the holding member 120, and the fixing members 106A and 106B are removed from the pusher 24. By configuring the pusher 24 to be detachable from the wire 26, the pusher 24 can be easily replaced with a new one (including one of a different size), improving workability.

[0068] The pusher device 100 of the stick feeder 4 of the above-mentioned embodiment 1 includes a wire 26 that is driven to pass through the stick ST1 of the stick feeder 4, and a pusher 24 that is attached to the wire 26 and pushes out the component P contained in the stick ST1 toward the component supply position 21b, and the pusher 24 is attached rotatably relative to the wire 26.

[0069] According to this configuration, the pusher 24 is rotatable relative to the wire 26, so that the inclination of the pusher 24 can be automatically adjusted according to the travel path as the pusher 24 travels within the stick feeder 4. This makes it possible to prevent clogging and falling off when the pusher 24 pushes out the component P and sends it to the component supply position 21b, and to send the component P to the component supply position 21b with high accuracy.

[0070] Furthermore, according to the pusher device 100 of the first embodiment, the pusher 24 rotates in response to its own weight. With this configuration, the inclination of the pusher 24 can be adjusted naturally.

[0071] Furthermore, according to the pusher device 100 of the first embodiment, the pusher 24 is detachable from the wire 26. With such a configuration, the pusher 24 can be easily replaced, improving workability.

[0072] Moreover, pusher device 100 of embodiment 1 further includes holding member 120, which is attached to end 26A of wire 26 and is housed inside pusher 24 to rotatably hold pusher 24. With this configuration, wire 26 and pusher 24 can be easily connected by holding member 120.

[0073] Furthermore, according to pusher device 100 of embodiment 1, holding member 120 includes expanded diameter portion 128, which is an expanded diameter portion of the entire length of wire 26 along axial direction A, and pusher 24 further includes first member 102 and second member 104 attached to each other so as to sandwich expanded diameter portion 128 in axial direction A. With this configuration, pusher 24 can be rotatably held while maintaining the positional relationship between pusher 24 and holding member 120 in axial direction A.

[0074] Furthermore, according to pusher device 100 of the first embodiment, pusher 24 has opening 126 formed in end surface 107 that presses component P, through which end surface 124 of holding member 120 is exposed. With this configuration, the attachment state of holding member 120 can be confirmed through opening 126.

[0075] Furthermore, according to pusher device 100 of the first embodiment, end surface 107 of pusher 24 is flush with end surface 124 of holding member 120. With this configuration, component P can be pushed out stably and in a well-balanced manner.

[0076] Furthermore, stick feeder 4 of embodiment 1 includes stacking unit 23 for stacking multiple sticks ST, and pusher device 100 for pushing out component P contained in one stick ST1 of the multiple sticks ST toward component supply position 21b. This configuration can achieve the same effects as pusher device 100 of embodiment 1.

[0077] (Embodiment 2) Embodiment 2 will be described with reference to Figures 13 to 17. In Embodiment 2, the same or similar configurations as in Embodiment 1 will be denoted by the same reference numerals. In Embodiment 2, descriptions that overlap with Embodiment 1 will be omitted.

[0078] Figures 13 and 14 are perspective views of the pusher device 200 of the second embodiment. Figures 15 and 16 are perspective and plan views showing a cross section of the pusher device 200 of the second embodiment.

[0079] The second embodiment differs from the first embodiment in that the pusher 201 includes a third member 205 in addition to the first member 202 and the second member 204 .

[0080] 13 to 16, the pusher device 200 includes a pusher 201, a wire 26, and an origin mark 24a. Like the pusher 24 of the first embodiment, the pusher 201 of the second embodiment is attached to be rotatable in a rotation direction R relative to the wire 26 about the rotation axis Ax. This allows the same effects as those of the pusher device 100 of the first embodiment to be achieved.

[0081] 13 to 16 includes a first member 202, a second member 204, and a third member 205. The first member 202 is disposed on the distal end side A1, the second member 204 is disposed on the proximal end side A2, and the third member 205 is disposed between the first member 202 and the second member 204.

[0082] 13 and other figures, the first member 202 has an end face 207 on the tip side A1, and forms an opening 226. An end face 224 of a holding member 220 (described later) is exposed in the opening 226, and the end face 207 and the end face 224 are flush with each other.

[0083] 14 and other figures, the second member 204 has an end surface 209 on the base end side A2. The fixing members 206A and 206B and the wire 26 are inserted into the end surface 209, and the origin mark 24a is press-fitted and fixed therein.

[0084] 15 and 16, a holding member 220 is housed inside pusher 201. Holding member 220 of embodiment 2 has a different shape from holding member 120 of embodiment 1. Here, a perspective view of holding member 220 of embodiment 2 is shown in FIG.

[0085] 17, the holding member 220 has a shape in which the diameter is reduced in a portion (central portion) of the entire length in the axial direction A. The holding member 220 includes a first portion 230, a second portion 232, and a reduced diameter portion 234.

[0086] The first portion 230 is provided on the distal end side A1, and the second portion 232 is provided on the proximal end side A2. The reduced diameter portion 234 is provided between the first portion 230 and the second portion 232.

[0087] The diameter of reduced diameter portion 234 is smaller than the diameter of first portion 230 and second portion 232. In the example shown in Fig. 17, reduced diameter portion 234 has a cylindrical shape, and together with second portion 232, wire 26 is press-fitted and accommodated inside.

[0088] 15 and 16, the first member 202, the second member 204, and the third member 205 constituting the pusher 201 each form an insertion hole for accommodating the holding member 220. Specifically, the first member 202 forms an insertion hole 216, the second member 204 forms an insertion hole 218, and the third member 205 forms an insertion hole 219.

[0089] The insertion hole 216 accommodates the first portion 230 shown in FIG. 17, the insertion hole 218 accommodates the second portion 232 shown in FIG. 17, and the insertion hole 219 accommodates the reduced diameter portion 234 shown in FIG.

[0090] The diameters of insertion holes 216, 218, and 219 are set according to the diameters of the respective portions of holding member 220 to be accommodated. The diameters of insertion holes 216 and 218 are set to be approximately the same, and the diameter of insertion hole 219 is set to be smaller than the diameters of insertion holes 216 and 218. Pusher 201, which accommodates holding member 220, is held in a state where it can rotate relatively to holding member 220 inside.

[0091] In this configuration, the third member 205 surrounds the periphery of the reduced diameter portion 234 of the holding member 220. The third member 205 engages with the first portion 230 and the second portion 232 of the holding member 220 in the axial direction A, and the positional relationship in the axial direction A is maintained.

[0092] When providing third member 205, the portion through which fixing member 206A is inserted and the portion through which fixing member 206B is inserted may be formed as separate bodies and then combined with each other.

[0093] According to the above configuration, the pusher device 200 of the second embodiment can be configured using the holding member 220 shaped as shown in Fig. 17, and the same effects as those of the pusher device 100 of the first embodiment can be achieved. Therefore, by using the holding members 120 and 220 differently or by changing the shapes of the holding members 120 and 220, pushers of various shapes can be combined and used.

[0094] The present invention has been described above with reference to the above-mentioned Embodiments 1 and 2, but the present invention is not limited to the above-mentioned Embodiments 1 and 2. For example, in the first and second embodiments, the holding members 120 and 220 are formed separately from the wire 26. However, the present invention is not limited to this case, and the holding members 120 and 220 may be formed integrally with the wire 26.

[0095] Although the present disclosure has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such variations and modifications should be understood to be included within the scope of the present disclosure as defined by the appended claims, unless they depart therefrom. Furthermore, changes in the combination and order of elements in each embodiment may be made without departing from the scope and spirit of the present disclosure.

[0096] It should be noted that, by appropriately combining any of the above-described embodiments and various modifications, it is possible to achieve the effects of each of them. [Industrial Applicability]

[0097] The present invention is applicable to any pusher device for a stick feeder and any stick feeder equipped with the same. [Explanation of symbols]

[0098] 1. Component placement device 4, 40, 41, 42, 43 Stick feeder 11 nozzles 14 Parts Recognition Unit 14a Camera 14b 1st light source 14c 2nd light source 16 Imaging control unit 21 Feeder 21a Entrance 21b Parts supply position 22 Parts Sensor 23 Loading section 24 Pusher 25 Pusher drive unit 26 wires 31 Pusher sensor 32 Control section 34 Stick Sensor 100 Pusher device 102 First member 104 Second member 106A, 106B fixing members 107 End face 108 Tapered surface 109 End face 110 Tapered surface 112A, 112B insertion holes 114A, 114B insertion holes 116 Insertion hole 118 Insertion hole 120 Retaining member 122 Mounting hole 124 End face 126 Aperture 128 Expanded diameter part 200 Pusher device 201 Pusher 202 First member 204 Second member 205 Third Component 206A, 206B fixing members 207 End face 209 End face 216 Insertion hole 218 Insertion hole 219 Insertion hole 220 Retaining member 224 End face 226 Aperture 230 Part 1 232 Part 2 234 Reduced diameter section P parts ST Stick ST1 First Stick

Claims

1. a wire driven through the sticks of the stick feeder; a pusher attached to the wire for pushing out the components housed in the stick toward a component supply position, A pusher device for a stick feeder, wherein the pusher is rotatably attached to the wire.

2. 2. The pusher device for a stick feeder according to claim 1, wherein the pusher rotates under its own weight in accordance with the inclination of the track.

3. 3. The pusher device for a stick feeder according to claim 1, wherein the pusher is detachable from the wire.

4. 4. The pusher device for a stick feeder according to claim 1, further comprising a holding member attached to an end of the wire and housed inside the pusher to hold the pusher in a rotatable state.

5. the holding member has an expanded diameter portion whose diameter is expanded in a part of the entire length along the axial direction of the wire, 5. The pusher device for a stick feeder according to claim 4, wherein the pusher further comprises a first member and a second member attached to each other so as to sandwich the expanded diameter portion in the axial direction.

6. 6. The pusher device for a stick feeder according to claim 4, wherein the pusher has an opening formed in an end face that presses the component, the opening exposing the end face of the holding member.

7. 7. The pusher device for a stick feeder according to claim 6, wherein the end face of the pusher and the end face of the holding member are flush with each other.

8. a loading section for stacking a plurality of sticks; A stick feeder comprising: a pusher device according to any one of claims 1 to 7 for pushing out a component housed in one of the plurality of sticks toward the component supply position.

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