JP6450455B2 - Viscous fluid supply device and component mounting device - Google Patents

Description

  The present invention relates to a viscous fluid supply device and a component mounting device.

  Conventionally, a viscous fluid supply device that supplies a viscous fluid such as flux or solder paste is known. Such a viscous fluid supply apparatus is disclosed in, for example, US Pat. No. 6,293,317.

  US Pat. No. 6,293,317 discloses a viscous fluid comprising a base plate on which the viscous fluid is stretched, a container (squeegee) that slides so as to smooth the viscous fluid on the base plate, and a slide portion that holds the container slidably. A feeding device is disclosed.

US Pat. No. 6,293,317

  However, in the conventional viscous fluid supply apparatus such as US Pat. No. 6,293,317, it is difficult to prevent the container from being forgotten to be installed because it cannot be detected that the container (squeegee) is held on the slide portion. There is a problem that there is. When the container is not installed and the viscous fluid is supplied, the viscous fluid leaks into the apparatus.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to provide a viscous fluid supply device and a component mounting device that can prevent forgetting to install a squeegee. That is.

A viscous fluid supply apparatus according to a first aspect of the present invention includes a plate on which a viscous fluid is stretched, a squeegee that slides so as to smooth the viscous fluid on the plate, a squeegee holding portion in which the squeegee is installed, A squeegee detection unit that detects the presence or absence of installation , the squeegee holding unit includes a regulation unit that regulates movement in a direction parallel to the pressing direction of the squeegee plate, the squeegee detection unit is provided with a squeegee, and it that is configured to detect the movement of the squeegee is regulated by the regulating unit.

  In the viscous fluid supply apparatus according to the first aspect of the present invention, forgetting to install the squeegee can be prevented by providing the squeegee detecting unit for detecting whether or not the squeegee is installed as described above. Thereby, it can suppress that a viscous fluid leaks in an apparatus by replenishing a viscous fluid in the state where the squeegee is not installed.

In addition, since it is possible to prevent forgetting to restrict the movement of the squeegee by the restricting portion , it is possible to prevent the squeegee from being separated from the plate due to forgetting to restrict the squeegee of the restricting portion.

  In this case, preferably, the squeegee detection unit includes a light projecting unit and a light receiving unit, the squeegee holding unit includes a switching unit that switches arrival of light from the light projecting unit to the light receiving unit, and the switching unit is a restriction unit. Depending on the regulation state where movement of the squeegee by the part is regulated and the release state where regulation of the movement of the squeegee by the regulation part is released, the arrival of light from the light projecting part to the light receiving part is switched. It is configured. If comprised in this way, it can detect easily that a squeegee is installed and it is in a regulation state by transmitting, intercepting, or reflecting light from a light projection part by a change part.

  In the configuration in which the squeegee holding unit includes the switching unit, it is preferable that the switching unit moves when the regulation state and the release state of the regulation unit are switched, so that light from the light projecting unit reaches the light receiving unit. Are configured to be switched. According to this configuration, the switching unit can be moved in conjunction with the switching between the restricted state and the released state by the restricting unit. Therefore, according to the restricted state and the released state, the light from the light projecting unit can be moved. The arrival at the light receiving unit can be easily switched by the switching unit.

  In this case, preferably, the squeegee holding part further includes a rotation support part that rotatably supports the restriction part. In the release state, the restriction part contacts the rotation support part, and in the restriction state, the restriction part is restricted. The switching portion moves when the portion moves away from the rotation support portion. If comprised in this way, the restriction | limiting of the movement of the squeegee by a restriction | limiting part can be easily turned on / off by rotating a restriction | limiting part. Moreover, since the distance with respect to the rotation support part of a control part can be changed according to a control state and a cancellation | release state, a switching part can be easily moved according to a state.

  In the configuration in which the squeegee holding part includes the restricting part, preferably, the squeegee holding part is further connected to the restricting part and further includes a pressing force generating mechanism for generating a pressing force against the plate of the squeegee, and the movement of the squeegee by the restricting part is restricted. When the squeegee detection unit detects that the pressure is generated, a pressing force is generated by the pressing force generation mechanism. If comprised in this way, since a pressing force can be added in the state which controlled the movement of the squeegee by the control part, a pressing force can be reliably provided to a squeegee. In addition, when the squeegee restriction by the restriction part is turned on / off, the restriction part can be easily moved by not generating the pressing force by the pressing force generating mechanism, so the squeegee restriction can be easily turned on / off. can do.

The viscous fluid supply device according to the first aspect preferably further includes a replenishing unit that replenishes the plate with the viscous fluid, and when the squeegee detecting unit does not detect that the squeegee is installed, the viscous fluid is supplied from the replenishing unit. It is configured not to be replenished. If comprised in this way, since a viscous fluid is replenished when the squeegee is installed, it can suppress that a viscous fluid leaks in an apparatus.
A component mounting apparatus according to a second aspect of the present invention includes a plate on which viscous fluid is stretched, a squeegee that slides so as to smooth the viscous fluid on the plate, a squeegee holding portion in which the squeegee is installed, and the installation of the squeegee. A squeegee detection unit that detects the presence or absence of a squeegee and a replenishment unit that replenishes the plate with viscous fluid, and is configured so that viscous fluid is not replenished from the replenishment unit when the squeegee detection unit does not detect that a squeegee is installed. Has been.

A component mounting apparatus according to a third aspect of the present invention includes a mounting unit that mounts a component on a board, and a viscous fluid supply unit that supplies a viscous fluid to the component, and the viscous fluid supply unit extends and spreads the viscous fluid. a plate, a squeegee sliding to even out the viscous fluid on the plate, a squeegee holder squeegee is placed, seen including a squeegee detection section for detecting the presence or absence of the installation of the squeegee, the squeegee detector, squeegee And is configured to detect that movement in a direction parallel to the pressing direction of the squeegee with respect to the plate is restricted .

In the component mounting apparatus according to the third aspect of the present invention, forgetting to install the squeegee can be prevented by providing the squeegee detecting unit for detecting whether or not the squeegee is installed as described above. Accordingly, it is possible to provide a component mounting apparatus including a viscous fluid supply unit that can suppress leakage of viscous fluid into the apparatus by replenishing the viscous fluid without a squeegee being installed. Can do.

  In the present invention, forgetting to install the squeegee can be prevented.

It is the top view which showed the outline of the component mounting apparatus by 1st Embodiment of this invention. It is a schematic diagram for demonstrating a series of mounting operation | movement of the component mounting apparatus by 1st Embodiment of this invention. It is the perspective view which showed the flux supply apparatus by 1st Embodiment of this invention. It is the perspective view which showed the squeegee of the flux supply apparatus by 1st Embodiment of this invention. It is the perspective view which showed the drive mechanism of the squeegee of the flux supply apparatus by 1st Embodiment of this invention. It is the side view which showed the state by which the squeegee of the flux supply apparatus by 1st Embodiment of this invention was controlled. It is the side view which showed the state by which the restriction | limiting of the squeegee of the flux supply apparatus by 1st Embodiment of this invention was cancelled | released. It is the side view which showed the state by which the squeegee of the flux supply apparatus by 1st Embodiment of this invention is not arrange | positioned. It is the perspective view which showed the flux supply apparatus by 2nd Embodiment of this invention. It is the perspective view which showed the squeegee of the flux supply apparatus by 2nd Embodiment of this invention. It is the side view which showed the state by which the squeegee of the flux supply apparatus by 2nd Embodiment of this invention was controlled. It is the side view which showed the state by which the restriction | limiting of the squeegee of the flux supply apparatus by 2nd Embodiment of this invention was cancelled | released.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
(Configuration of component mounting device)
With reference to FIG. 1 and FIG. 2, the structure of the component mounting apparatus 100 by 1st Embodiment of this invention is demonstrated.

  The component mounting apparatus 100 takes out a bare chip (semiconductor chip) C from the diced wafer W and mounts it on the mounting surface of the substrate S, and also transfers an electronic component (so-called package component) supplied by the tape feeder 13a to the substrate S. This is a so-called composite type component mounting apparatus that can be mounted on the mounting surface. The bare chip C is an example of the “component” in the present invention.

  As shown in FIG. 1, the component mounting apparatus 100 includes a base 10, a control unit 11, a conveyor 12, two chip component supply units 13, two mounting units 14, a wafer holding table 15, An extraction unit 16, a component recognition camera 17, a fixed camera 18, and a wafer storage unit 19 are provided. The component mounting apparatus 100 is provided with a flux supply device 1. The flux supply device 1 is an example of the “viscous fluid supply device” and the “viscous fluid supply unit” in the present invention.

  The control unit 11 is configured to comprehensively control the operation of each unit of the component mounting apparatus 100. Specifically, the control unit 11 includes a conveyor 12, a chip component supply unit 13, a mounting unit 14, a wafer holding table 15, a takeout unit 16, a component recognition camera 17, a fixed camera 18, a wafer storage unit 19, and the flux supply device 1. And so on. The control unit 11 controls the operation of each unit based on an output signal from position detection means such as an encoder built in the drive motor of each unit. Further, the control unit 11 has a function of performing imaging control and image recognition of various cameras (the component recognition camera 17 and the fixed camera 18).

  The conveyor 12 is configured to carry the substrate S into and out of a predetermined mounting work position. The conveyor 12 includes a pair of conveyor rails extending in the X direction and a positioning mechanism (not shown) for positioning the substrate S at a predetermined position. Thereby, the conveyor 12 conveys the board | substrate S to a X direction, and fixes the board | substrate S to a predetermined mounting operation position.

  The two chip component supply units 13 are provided at both ends on the front side (Y1 direction side) of the component mounting apparatus 100, respectively. In the chip component supply unit 13, tape feeders 13a are arranged side by side along the X direction. Each tape feeder 13a intermittently sends out the carrier tape and supplies the electronic components in the carrier tape to a predetermined component supply position.

  The mounting unit 14 is configured to mount the electronic component supplied from the chip component supply unit 13 and the bare chip C of the wafer W on the substrate S. Specifically, the mounting unit 14 is supported by an XY movement mechanism so as to be movable in the horizontal direction (XY direction) above the conveyor 12 (substrate S). The mounting portion 14 has a plurality (two) of suction nozzles 14a (see FIG. 2) arranged along the X direction.

  The mounting unit 14 is configured to mount the bare chip C taken out from the wafer W by the extraction unit 16 on the substrate S by suction with the suction nozzle 14a. The mounting unit 14 is configured to mount the electronic component supplied by the tape feeder 13a on the substrate S by sucking the electronic component by the suction nozzle 14a.

  The wafer holding table 15 is configured to support the wafer W pulled out from the wafer storage unit 19 by a loading / unloading mechanism (not shown) at a predetermined position.

  The take-out unit 16 is configured to take out the bare chip C from the wafer W and deliver it to the mounting unit 14. Further, the take-out unit 16 is moved in the horizontal direction (XY direction) at a position above the wafer holding table 15 by a predetermined driving means. Further, the take-out unit 16 includes four wafer heads 16a.

  The wafer head 16a is configured to be rotatable around the X axis and to be movable in the vertical direction (up and down). Further, the wafer head 16a is configured to be able to suck the bare chip C. That is, the take-out portion 16 picks up and removes the bare chip C pushed up by the protrusion (not shown) by the wafer head 16a, reverses (flips) the bare chip C, and mounts the mount portion 14 (suction) at a predetermined delivery position. It is configured to deliver the bare chip C to the nozzle 14a).

  Prior to the removal of the bare chip C from the wafer W, the component recognition camera 17 is configured to take an image of the bare chip C to be extracted. The component recognition camera 17 is provided on a common frame with the take-out unit 16. The component recognition camera 17 is moved in the horizontal direction (XY direction) at a position above the wafer holding table 15 by a predetermined driving means.

  The fixed camera 18 is installed on the base 10 in a movable region of the mounting unit 14. The fixed camera 18 is configured to take an image of electronic components (including the bare chip C) sucked by the suction nozzle 14a of the mounting unit 14 from below.

  The wafer storage unit 19 is configured to store a plurality of diced wafers W. The bare chip C of the wafer W is, for example, a flip chip mounting bare chip in which bumps are formed on electrodes. In this case, the bare chip C is stuck and held on a film-like wafer sheet so that the bump forming surface (mounting surface) faces upward.

  The flux supply device 1 is provided to transfer (apply) the flux to the bumps of the bare chip C. Specifically, the flux supply device 1 supplies the flux to the plate 2 by extending it thinly. Then, the bare chip C sucked by the suction nozzle 14a of the mounting portion 14 is brought into contact with the expanded and spread flux. Thereby, the flux is transferred to the bumps of the bare chip C. It should be noted that the flux is applied to the bumps of the bare chip C so that the solder for bonding becomes good.

(Description of component mounting operation)
Next, an electronic component mounting operation by the component mounting apparatus 100 will be described with reference to FIG.

  As shown in FIG. 2, when the bare chip C of the wafer W is mounted on the substrate S, first, the bare chip C to be mounted is taken out by the takeout unit 16, and the bare chip C is sucked and held on the wafer head 16 a of the takeout unit 16. The The wafer head 16a rotates to reverse (flip) the bare chip C, and the bare chip C is disposed at a predetermined delivery position. In response to this, the suction nozzle 14a of the mounting portion 14 is lowered to the transfer height position above the transfer position, and the bare chip C is sucked.

  After the bare chip C is adsorbed, the mounting portion 14 is moved above the flux supply device 1. The suction nozzle 14a of the mounting portion 14 is lowered to the transfer height position, and the flux is transferred (applied) to the bump forming surface of the bare chip C. Thereafter, the mounting unit 14 is moved so as to pass above the fixed camera 18, and the bump forming surface of the bare chip C sucked by the suction nozzle 14a is imaged. Thereby, the defect determination of the bump formation surface of the bare chip C and the recognition of the suction position deviation are performed. Note that the order of the transfer operation and the imaging operation may be reversed. In other words, when the image (image recognition) can be performed better in the state before the transfer, the image capturing operation is performed first.

  After imaging, the mounting portion 14 is moved above the substrate S held on the conveyor 12, the suction nozzle 14a is lowered to a mounting height position above a predetermined mounting position, and the bare chip C is placed on the substrate S. (Implemented)

  Further, when the supply component of the tape feeder 13a (see FIG. 1) is mounted, the mounting portion 14 is moved above a predetermined component extraction position of the tape feeder 13a. Then, the suction nozzle 14a is lowered and the electronic component is taken out. Thereafter, the mounting unit 14 is moved so as to pass over the fixed camera 18, and the lower surface of the electronic component sucked by the suction nozzle 14a is imaged. Then, the mounting unit 14 is moved above the substrate S. Thereafter, the suction nozzle 14a is lowered and the electronic component is placed (mounted) on the substrate S. When the bare chip C is individually stored in the carrier tape and supplied from the tape feeder 13a, after the bare chip C is taken out from the tape feeder 13a, transfer and imaging are performed as shown in FIG. The bare chip C is placed (mounted) on the board.

(Configuration of flux supply device)
With reference to FIGS. 3-8, the structure of the flux supply apparatus 1 by 1st Embodiment of this invention is demonstrated.

  As shown in FIG. 3, the flux supply device 1 includes a plate 2, a squeegee 3, a base part 4, a squeegee holding part 5, a flux discharge part 6, a sensor 7, and a squeegee detection part 8. ing. The flux discharge unit 6 is an example of the “replenishment unit” in the present invention.

  The plate 2 includes a recess 21. As shown in FIG. 4, the squeegee 3 includes a pair of squeegee portions 31, a pair of wall portions 32, a pair of plate-like portions 33, a pair of sliding direction regulating pins 34, and a pair of pressing portions 35. Contains. As shown in FIG. 5, the base part 4 includes a motor 41, a belt 42, and a plate positioning part 43. As shown in FIG. 4, the squeegee holding part 5 includes a traveling direction restricting part 51, a pressing direction restricting part 52, a connecting part 53, a rotation support part 54, a plunger part 55, and an air cylinder 56. Contains. As shown in FIG. 3, the squeegee detection unit 8 includes a light projecting unit 8a and a light receiving unit 8b. The pressing direction restricting portion 52 is an example of the “restricting portion” in the present invention, and the air cylinder 56 is an example of the “pressing force generating mechanism” in the present invention.

  As shown in FIG. 4, the pressing direction restricting portion 52 includes a squeegee lock portion 521, a rotation support recessed portion 522, plunger engaging holes 523 and 524, and a blocking pin 525. An air pressure generator 561 and a regulator 562 are connected to the air cylinder 56. The blocking pin 525 is an example of the “switching unit” in the present invention. On the outside of the pressing direction restricting portion 52, an operator operating portion is formed in the upper portion, and an operating lever having a substantially L-shaped cross section is provided.

  As shown in FIG. 3, the plate 2 is configured so that the flux is stretched and spread. The plate 2 is formed to extend in the A direction parallel to the sliding direction of the squeegee 3. The recess 21 of the plate 2 is recessed by a predetermined depth. As a result, the flux extends and spreads in the recess 21 at a substantially uniform height.

  As shown in FIG. 3, the squeegee 3 is configured to slide so as to smooth the flux on the plate 2. Specifically, the squeegee 3 is configured to move in the A direction (A1 direction and A2 direction) while being pressed in the B direction (B2 direction) and in contact with the plate 2. As shown in FIG. 4, a pair of squeegee portions 31 of the squeegee 3 are provided in the A1 direction and the A2 direction. The pair of squeegee portions 31 are connected by a pair of wall portions 32 provided at both ends in the horizontal direction orthogonal to the A direction. That is, the pair of squeegee portions 31 and the pair of wall portions 32 are connected in a frame shape. The squeegee unit 31 is configured to smooth the flux on the plate 2 in the traveling direction (A1 direction or A2 direction) by sliding.

  The plate-like portion 33 is provided on the outside of the pair of wall portions 32. The pair of plate-like portions 33 are provided with sliding direction regulating pins 34 and pressing portions 35, respectively. The sliding direction regulating pin 34 is provided so as to protrude outward from the plate-like portion 33. The sliding direction regulating pin 34 is configured to contact the traveling direction regulating unit 51 of the squeegee holding unit 5 and transmit a force in the sliding direction (traveling direction) to the squeegee 3.

  The pressing portion 35 is provided so as to protrude outward from the plate-like portion 33. The pressing part 35 is configured to engage with the pressing direction restricting part 52 of the squeegee holding part 5 and transmit force (pressing force) in the pressing direction (B2 direction) to the squeegee 3.

  As shown in FIG. 3, the base unit 4 is configured to move the squeegee 3 via the squeegee holding unit 5 while the plate 2 is installed. Specifically, as shown in FIG. 5, the belt 42 is driven by the motor 41 of the base unit 4. The belt 42 contacts the squeegee holding part 5 and moves the squeegee holding part 5 in the A direction. Further, the plate 2 is positioned by the plate positioning portion 43 of the base portion 4, and the plate 2 is installed on the base portion 4.

  The squeegee holding unit 5 is configured such that the squeegee 3 is installed. Specifically, the squeegee holding unit 5 is configured to hold the squeegee 3. The squeegee holding part 5 is configured to restrict movement in the B direction parallel to the pressing direction of the squeegee 3 and restrict movement in the A direction parallel to the traveling direction (sliding direction) of the squeegee 3.

  The travel direction restricting portion 51 of the squeegee holding portion 5 is configured to restrict movement in the A direction parallel to the sliding direction of the squeegee 3. A pair of traveling direction restricting portions 51 are provided so as to face each other in the horizontal direction orthogonal to the A direction. That is, a pair of traveling direction restricting portions 51 are provided so as to sandwich the squeegee 3. Further, the traveling direction restricting portion 51 is fixed to the base portion 5a. Moreover, the advancing direction control part 51 has the slit shape by which the upper direction (B1 direction) was open | released. The sliding direction regulating pin 34 of the squeegee 3 is sandwiched in the slit shape of the traveling direction regulating portion 51. Then, the sliding direction regulating pin 34 abuts on the traveling direction regulating portion 51 in the A direction, whereby movement of the squeegee 3 (sliding direction regulating pin 34) in the sliding direction is regulated. Accordingly, when the squeegee holding unit 5 is moved in the A direction, the squeegee 3 is also moved (slided) in the A direction.

  The pressing direction restricting portion 52 is configured to restrict movement in the B direction (B1 direction) parallel to the pressing direction of the squeegee 3 with respect to the plate 2. A pair of pressing direction restricting portions 52 are provided so as to face each other in the horizontal direction orthogonal to the A direction. That is, a pair of pressing direction restricting portions 52 are provided so as to sandwich the squeegee 3.

  Further, the pressing direction restricting portion 52 is provided separately from the traveling direction restricting portion 51. In addition, the squeegee 3 is configured to be moved and removed in the B direction (B1 direction) in a state where the restriction of the pressing direction restriction portion 52 is released. Further, the pressing direction restricting portion 52 is configured to move along the A direction (horizontal direction) with respect to the squeegee 3 and restrict the movement of the squeegee 3 in the B direction (vertical direction). Specifically, the pair of pressing direction restricting parts 52 are connected to each other by a connecting part 53. Further, the pressing direction restricting portion 52 is rotatably supported by the rotation supporting portion 54. Then, the pressing direction restricting portion 52 rotates around the rotation supporting portion 54, whereby the squeegee lock portion 521 moves along the A direction and locks the squeegee 3 (restricts movement in the B1 direction). ) Is configured as follows. In addition, since a pair of press direction control part 52 is connected by the connection part 53, if one press direction control part 52 is moved along A direction, the other press direction control part 52 will also be A similarly. Move along the direction.

  The squeegee lock portion 521 of the pressing direction restricting portion 52 is configured to engage with the pressing portion 35 of the squeegee 3 to restrict the movement of the squeegee 3 in the B direction and to transmit the pressing force to the squeegee 3. . An inclined portion 521a (see FIG. 6) is formed at the tip portion of the squeegee lock portion 521 that engages with the pressing portion 35 and is inclined with the size in the B direction changing along the A direction. Further, the squeegee lock portion 521 of the pressing direction restricting portion 52 is configured to ride on the pressing portion 35 to lock the squeegee 3 (to restrict movement in the B direction).

  The rotation support recess 522 of the pressing direction restricting portion 52 is formed in a notch shape so as to be supported by the rotation support portion 54. The pressing direction restricting portion 52 is configured such that the rotation support recess 522 contacts the rotation support portion 54 when the lock of the squeegee 3 is released (the restriction in the B direction is released). That is, when the lock of the squeegee 3 by the pressing direction restricting portion 52 is released, the pressing direction restricting portion 52 rotates around the rotation support portion 54. On the other hand, when the squeegee 3 is locked (the B direction is restricted), the rotation support recess 522 is configured to be separated from the rotation support portion 54 in the B direction (B1 direction).

  Plunger-engagement holes 523 and 524 of the pressing direction restricting portion 52 are configured to engage with the plunger portion 55 and suppress movement (turning) along the A direction of the pressing direction restricting portion 52. Yes. That is, when the pressing direction restricting portion 52 restricts the movement of the squeegee 3 in the B direction, the plunger portion 55 engages with the plunger engaging hole 523 and the pressing direction restricting portion 52 moves in the A direction. To regulate. Further, when the pressing direction restricting portion 52 releases the restriction of the movement of the squeegee 3 in the B direction, the plunger portion 55 engages with the plunger engaging hole 524 and the A direction of the pressing direction restricting portion 52 is determined. Regulate the movement of

  Here, in the first embodiment, two blocking pins 525 are provided on one side of the pair of pressing direction regulating portions 52. The blocking pins 525 are arranged on the upper side (B1 direction side) of the connecting portion 53 at a predetermined interval. The blocking pin 525 is configured to switch the arrival of light (visible light or infrared light) from the light projecting unit 8a to the light receiving unit 8b. Specifically, the blocking pin 525 is configured to pass or block light (visible light or infrared light) from the light projecting unit 8a to the light receiving unit 8b. That is, the blocking pin 525 corresponds to a restricted state where the movement of the squeegee 3 by the pressing direction restricting portion 52 is restricted and a released state where the restriction of the movement of the squeegee 3 by the pressing direction restricting portion 52 is released. It is configured to switch the arrival of light from the light projecting unit 8a to the light receiving unit 8b.

  Specifically, when the restriction state and the release state of the pressing direction restriction unit 52 are switched, the blocking pin 525 moves so that the arrival of light from the light projecting unit 8a to the light receiving unit 8b is switched. It is configured. In other words, in the released state, the pressing direction restricting portion 52 contacts the rotation support portion 54, and in the restricted state, the pressing direction restricting portion 52 moves away from the rotation support portion 54, thereby 525 is configured to move.

  As shown in FIG. 6, when the squeegee 3 is locked by the pressing direction restricting portion 52 (movement in the B direction is restricted), the light from the light projecting portion 8 a is transmitted to the blocking pin 525 and the connecting portion 53. It passes through the gap and reaches the light receiving portion 8b. As shown in FIG. 7, when the lock by the pressing direction restricting portion 52 of the squeegee 3 is released (the restriction on movement in the B direction is released), the light from the light projecting portion 8 a is blocked by the blocking pin 525. It is blocked and does not reach the light receiving part 8b. In other words, when the pressing direction restricting portion 52 is rotated, the light from the light projecting portion 8 a cannot pass through the gap between the blocking pin 525 and the connecting portion 53. As shown in FIG. 8, when the squeegee 3 is not installed, the light from the light projecting unit 8a is blocked by the blocking pin 525 and does not reach the light receiving unit 8b. That is, the rotation support recess 522 of the pressing direction restricting portion 52 is disposed so as to contact the rotation support portion 54, so that the light of the light projecting portion 8 a may pass through the gap between the blocking pin 525 and the connecting portion 53. become unable.

  The air cylinder 56 is connected to the pressing direction restricting portion 52 and configured to generate a pressing force against the plate 2 of the squeegee 3. Specifically, the air cylinder 56 is configured to urge the connecting portion 53 that connects the pressing direction regulating portion 52 in the pressing direction (B2 direction). The air cylinder 56 is configured to generate a pressing force of the squeegee 3 by being driven by the air pressure generated by the air pressure generator 561. The air pressure generated by the air pressure generator 561 is adjusted to a desired pressure via the regulator 562. That is, by operating the regulator 562, the pressing force of the squeegee 3 against the plate 2 is adjusted. For example, the pressing force is adjusted based on the viscosity information of the flux to be applied.

  The flux discharge unit 6 is configured to supply the flux onto the plate 2. Specifically, the flux discharge section 6 is configured to supply flux into a frame formed by the squeegee section 31 and the wall section 32 of the squeegee 3.

  The sensor 7 is configured to measure the amount of flux in the frame of the squeegee 3. The sensor 7 includes, for example, an ultrasonic sensor.

  In the first embodiment, the squeegee detection unit 8 is configured to detect whether or not the squeegee 3 is installed. Specifically, the squeegee detection unit 8 is configured to detect that the squeegee 3 is installed and the movement of the squeegee 3 is restricted (locked) by the pressing direction restriction unit 52. . That is, as shown in FIG. 6, when the squeegee 3 is locked by the pressing direction restricting portion 52 (movement in the B direction is restricted), the light of the light projecting portion 8a is detected by the light receiving portion 8b. Thereby, a state in which the squeegee 3 is locked by the squeegee holding unit 5 is detected. When the squeegee 3 is locked (restricted in the B direction), a pressing force by the air cylinder 56 is generated. That is, based on the detection result of the light receiving unit 8b, in the locked state, the air cylinder 56 is driven to generate a pressing force. Further, when the restriction in the B direction of the squeegee 3 is released (the lock is released), the pressing force by the air cylinder 56 is not generated. When the squeegee detection unit 8 does not detect that the squeegee 3 is installed, the flux is not replenished (supplied) from the flux discharge unit 6.

  Further, based on the detection result of the light receiving unit 8b, when the light of the light projecting unit 8a is not detected by the light receiving unit 8b, that is, when the squeegee 3 is not installed or is installed but not locked, Even if the timing of moving the squeegee 3 in the direction A by driving the motor 41 during automatic operation of the component mounting apparatus 100, the motor 41 may not be driven and may remain stopped. Alternatively, when the light of the light projecting unit 8a is not detected by the light receiving unit 8b when the automatic operation of the component mounting apparatus 100 is stopped, the switch for starting the automatic operation of the component mounting apparatus 100 is pressed. Automatic operation may not be started even if an operation is performed. Further, when the light of the light projecting unit 8a is not detected by the light receiving unit 8b, a warning indicating that the state is abnormal may be displayed on a monitor (not shown).

(Effect of 1st Embodiment)
In the first embodiment, the following effects can be obtained.

  In the first embodiment, as described above, forgetting to install the squeegee 3 can be prevented by providing the squeegee detecting unit 8 that detects whether or not the squeegee 3 is installed. Thereby, it can suppress that a flux leaks in an apparatus by replenishing a flux in the state where the squeegee 3 is not installed.

  In the first embodiment, the squeegee detection unit 8 is configured to detect that the squeegee 3 is installed and the movement of the squeegee 3 is regulated by the pressing direction regulating unit 52. Accordingly, forgetting to restrict the movement of the squeegee 3 by the pressing direction restricting portion 52 can be prevented, so that the squeegee 3 is separated from the plate 2 due to forgetting to restrict the squeegee 3 of the pressing direction restricting portion 52. Can be suppressed.

  Further, in the first embodiment, the blocking pin 525 is released when the restriction state in which the movement of the squeegee 3 is restricted by the pressing direction restricting portion 52 and the restriction of the movement of the squeegee 3 by the pressing direction restricting portion 52 are released. According to the state, it is configured to switch the arrival of light from the light projecting unit 8a to the light receiving unit 8b. Thereby, it is possible to easily detect that the squeegee 3 is installed and in a restricted state by transmitting or blocking the light from the light projecting unit 8a by the blocking pin 525.

  In the first embodiment, the blocking pin 525 moves when the restricted state and the released state of the pressing direction restricting portion 52 are switched, so that the light from the light projecting portion 8a reaches the light receiving portion 8b. Configure to be switched. Thereby, since the blocking pin 525 can be moved in conjunction with switching between the restricted state and the released state by the pressing direction restricting unit 52, the light from the light projecting unit 8a can be moved according to the restricted state and the released state. Can be easily switched by the blocking pin 525.

  In the first embodiment, the pressing direction restricting portion 52 is in contact with the rotation support portion 54 in the release state, and the pressing direction restricting portion 52 moves away from the rotation support portion 54 in the restriction state. By doing so, the blocking pin 525 is configured to move. Thereby, by rotating the pressing direction restricting part 52, the restriction of the movement of the squeegee 3 by the pressing direction restricting part 52 can be easily turned on / off. Moreover, since the distance with respect to the rotation support part 54 of the pressing direction control part 52 can be changed according to a control state and a cancellation | release state, the interruption | blocking pin 525 can be easily moved according to a state.

  In the first embodiment, when the squeegee detection unit 8 detects that the movement of the squeegee 3 is regulated by the pressing direction regulating unit 52, the pressing force by the air cylinder 56 is generated. Thereby, since the pressing force can be applied in a state where the movement of the squeegee 3 is restricted by the pressing direction restricting portion 52, the pressing force can be reliably applied to the squeegee 3. Further, when the restriction of the squeegee 3 by the pressing direction restricting portion 52 is turned on / off, the pressing direction restricting portion 52 can be easily moved by not generating the pressing force by the air cylinder 56. Regulations can be easily turned on / off.

  Moreover, in 1st Embodiment, when not detecting that the squeegee 3 is installed by the squeegee detection part 8, it is comprised so that a flux may not be replenished from the flux discharge part 6. FIG. Thereby, since flux is replenished when the squeegee 3 is installed, it can suppress that a flux leaks in an apparatus.

[Second Embodiment]
With reference to FIGS. 9-12, the flux supply apparatus 200 by 2nd Embodiment of this invention is demonstrated. In the second embodiment, a configuration in which two squeegee detectors 241 and 242 are provided will be described, unlike the first embodiment in which a single squeegee detector 8 is provided.

(Configuration of flux supply device)
As shown in FIG. 9, the flux supply device 200 includes a plate 210, a squeegee 220, a squeegee holding unit 230, and squeegee detection units 241 and 242. The flux supply device 200 is an example of the “viscous fluid supply device” and the “viscous fluid supply unit” in the present invention.

  The plate 210 includes a recess 211. As shown in FIG. 10, the squeegee 220 includes a pair of squeegee parts 221, a pair of connecting parts 222, a pair of plate-like parts 223, a pair of sliding direction regulating pins 224, and a pair of pressing parts 225. Contains. The squeegee holding part 230 includes a travel direction restricting part 231, a pressing direction restricting part 232, a spring 233, and a contact part 234. As shown in FIG. 9, the squeegee detecting unit 241 includes a light projecting unit 241a and a light receiving unit 241b. The squeegee detection unit 242 includes a light projecting unit 242a and a light receiving unit 242b. The contact portion 234 is an example of the “switching portion” in the present invention.

  The plate 210 is configured so that the flux is stretched and spread. The plate 210 is formed to extend in the A direction parallel to the sliding direction of the squeegee 220. The concave portion 211 of the plate 210 is recessed by a predetermined depth. As a result, the flux is expanded and spread in the recess 211 at a substantially uniform height. The plate 210 is configured to move in the A direction (A1 direction and A2 direction).

  The squeegee 220 is configured to slide so as to smooth the flux on the plate 210. Specifically, the plate 210 is configured to move in the A direction (A1 direction and A2 direction) while the squeegee 220 is pressed in the B direction (B2 direction). That is, the squeegee 220 moves relative to the plate 210 in the A direction. As shown in FIG. 10, a pair of squeegee portions 221 of the squeegee 220 are provided in the A1 direction and the A2 direction. The pair of squeegee portions 221 are connected by a pair of connecting portions 222 provided at both ends in a direction orthogonal to the A direction. In addition, weir portions 221a (see FIG. 11) are provided at both ends of the squeegee portion 221. Thereby, it is possible to prevent the flux from leaking from the end of the squeegee portion 221 when the squeegee 220 is slid. The squeegee unit 221 is configured to smooth the flux on the plate 210 in the relative traveling direction (A1 direction or A2 direction) by moving and sliding relative to the plate 210.

  The plate-like portions 223 are respectively provided outside the pair of connecting portions 222. The pair of plate-like portions 223 are provided with a sliding direction regulating pin 224 and a pressing portion 225, respectively. The sliding direction regulating pin 224 is provided so as to protrude outward from the plate-like portion 223. The sliding direction regulating pin 224 is configured to abut against the traveling direction regulating unit 231 of the squeegee holding unit 230 and regulate movement of the squeegee 220 in the sliding direction (traveling direction).

  The pressing part 225 is provided so as to protrude outward from the plate-like part 223. The pressing unit 225 is configured to engage with the pressing direction restricting unit 232 of the squeegee holding unit 230 and transmit a force (pressing force) in the pressing direction (B2 direction) to the squeegee 220.

  The squeegee holding unit 230 is configured such that the squeegee 220 is installed. Specifically, the squeegee holding unit 230 is configured to hold the squeegee 220. The squeegee holding unit 230 is configured to restrict movement in the B direction parallel to the pressing direction of the squeegee 220 and restrict movement in the A direction parallel to the sliding direction (relative traveling direction) of the squeegee 220. ing. The squeegee holding part 230 is fixed at a predetermined position in the A direction. Specifically, the squeegee holding unit 230 is configured such that the holding unit 230b does not move in the A direction (horizontal direction) with respect to the base 230a. On the other hand, the holding part 230b is configured to move in the B1 direction (upward) with respect to the base 230a.

  The travel direction restricting portion 231 of the squeegee holding portion 230 is configured to restrict movement in the A direction parallel to the sliding direction of the squeegee 220. A pair of travel direction restricting portions 231 are provided so as to face each other in the horizontal direction orthogonal to the A direction. That is, a pair of traveling direction restricting portions 231 is provided so as to sandwich the squeegee 220. The traveling direction restricting portion 231 is fixed to the base 230a. Moreover, the advancing direction control part 231 has the slit shape by which the upper direction (B1 direction) was open | released. The sliding direction regulating pin 224 of the squeegee 220 is sandwiched in the slit shape of the traveling direction regulating portion 231. Then, when the sliding direction restriction pin 224 contacts the traveling direction restriction portion 231 in the A direction, movement of the squeegee 220 (sliding direction restriction pin 224) in the sliding direction is restricted.

  The pressing direction restricting portion 232 is configured to restrict movement of the squeegee 220 in the B direction (B1 direction) parallel to the pressing direction with respect to the plate 210. A pair of pressing direction restricting portions 232 are provided so as to face each other in the horizontal direction orthogonal to the A direction. That is, a pair of pressing direction restricting portions 232 is provided so as to sandwich the squeegee 220.

  Further, the pressing direction restricting portion 232 is provided separately from the traveling direction restricting portion 231. In addition, the squeegee 220 is configured to be moved and removed in the B direction (B1 direction) in a state where the restriction of the pressing direction restriction portion 232 is released. Further, the pressing direction restricting portion 232 is configured to move in parallel with the squeegee 220 along the A direction (horizontal direction) and restrict the movement of the squeegee 220 in the B1 direction (upward direction).

  An inclined portion 232a is formed at the tip portion of the pressing direction restricting portion 232 that engages with the pressing portion 225, and is inclined with the size in the B direction changing along the A direction. Further, the pressing direction restricting portion 232 is configured to ride on the pressing portion 225 and lock the squeegee 220 (to restrict movement in the B direction). That is, as shown in FIG. 11, when the squeegee 220 is locked by the pressing direction restricting portion 232 (movement in the B direction is restricted), the holding portion 230b (contact portion 234) is lifted from the base 230a.

  The spring 233 is connected to the pressing direction restricting portion 232 and is configured to generate a pressing force against the plate 210 of the squeegee 220. Specifically, the spring 233 is configured to urge the holding portion 230b in contact with the pressing direction regulating portion 232 in the pressing direction (B2 direction).

  Here, in 2nd Embodiment, the contact part 234 is comprised so that it may contact | abut to the base 230a. Further, the abutting portion 234 is provided at the lower portion (B2 direction side) of the holding portion 230b. The contact portion 234 is configured to switch the arrival of light (visible light or infrared light) from the light projecting portion 241a to the light receiving portion 241b. Specifically, the contact part 234 is configured to pass or block light (visible light or infrared light) from the light projecting part 241a to the light receiving part 241b. In other words, the contact portion 234 depends on a restricted state where the movement of the squeegee 220 is restricted by the pressing direction restricting portion 232 and a released state where the restriction on the movement of the squeegee 220 by the pressing direction restricting portion 232 is released. The light from the light projecting unit 241a is switched to reach the light receiving unit 241b.

  Specifically, when the restricted state and the released state of the pressing direction restricting portion 232 are switched, the arrival of the light from the light projecting portion 241a to the light receiving portion 241b is switched by the contact portion 234 moving. It is configured as follows.

  As shown in FIG. 11, when the squeegee 220 is locked by the pressing direction restricting portion 232 (movement in the B direction is restricted), the light from the light projecting portion 241a is detected by the light receiving portion 241b. That is, when the holding portion 230b (the contact portion 234) is lifted from the base 230a, the light from the light projecting portion 241a passes through the gap between the contact portion 234 and the base 230a and reaches the light receiving portion 241b. Thereby, a state in which the squeegee 220 is locked by the squeegee holding unit 230 is detected. On the other hand, as shown in FIG. 12, when the squeegee 220 is not locked by the pressing direction restricting portion 232 (the restriction on movement in the B direction is released), the light from the light projecting portion 241a is not detected by the light receiving portion 241b. . That is, when the holding part 230b (contact part 234) contacts the base 230a, the light from the light projecting part 241a is blocked by the contact part 234 and does not reach the light receiving part 241b.

  In the second embodiment, the squeegee detection unit 241 is configured to detect whether the squeegee 220 is installed. Specifically, the squeegee detection unit 241 is configured to detect that the squeegee 220 is installed and the movement of the squeegee 220 is regulated (locked) by the pressing direction regulating unit 232. .

  The squeegee detection unit 242 is configured to detect whether or not the squeegee 220 is installed. Specifically, as shown in FIG. 9, when the squeegee 220 is installed, the light of the light projecting unit 242a is not detected by the light receiving unit 242b. That is, the light from the light projecting unit 242a is blocked by the squeegee 220 and does not reach the light receiving unit 242b. On the other hand, when the squeegee 220 is not installed, the light from the light projecting unit 242a is detected by the light receiving unit 242b. That is, the light from the light projecting unit 242a reaches the light receiving unit 242b without being blocked.

  Further, when the squeegee detection unit 242 does not detect the installation of the squeegee 220, or when the light receiving unit 242b does not detect the light of the light projecting unit 242a based on the detection result of the light receiving unit 242b, the component mounting apparatus 100 During the automatic operation, the squeegee 3 may be stopped without being moved even when the squeegee 3 is relatively moved in the direction A by the movement of the plate 210. Alternatively, if the above detection state occurs when the automatic operation of the component mounting apparatus 100 is stopped, an operation such as pressing a switch for starting the automatic operation of the component mounting apparatus 100 is performed. However, automatic operation may not be started. Furthermore, in the case of the detection state, a warning display indicating that the state is abnormal may be displayed on a monitor (not shown).

  In addition, the other structure of 2nd Embodiment is the same as that of the said 1st Embodiment.

(Effect of 2nd Embodiment)
In the second embodiment, the following effects can be obtained.

  In the second embodiment, as in the first embodiment, forgetting to install the squeegee 220 can be prevented by providing the squeegee detection units 241 and 242 that detect whether or not the squeegee 220 is installed. Thereby, it can suppress that a flux leaks in an apparatus by replenishing a flux in the state where the squeegee 220 is not installed.

  The remaining effects of the second embodiment are similar to those of the aforementioned first embodiment.

(Modification)
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the first and second embodiments, the example in which the viscous fluid coating apparatus of the present invention is applied to a flux coating apparatus has been described, but the present invention is not limited to this. You may apply the viscous fluid application apparatus of this invention to the apparatus which apply | coats viscous fluids other than a flux. For example, the viscous fluid application apparatus of the present invention may be applied to an apparatus for applying a viscous fluid such as solder or silver paste.

  In the first and second embodiments, an example in which a bare chip having a bump is flip-chip mounted has been described. However, the present invention is not limited to this. For example, the present invention may be applied to a case where a package part having a BGA (ball grid array) is mounted by PoP (package on package). Moreover, the component mounting apparatus of the present invention may be applied to a flip chip bonder, or may be applied to a component mounting apparatus that mounts components supplied from a tape feeder or a tray.

  Moreover, although the example which uses an air cylinder as a pressing force generation mechanism of this invention was shown in the said 1st Embodiment, this invention is not limited to this. In the present invention, for example, a hydraulic cylinder, a solenoid, a linear motor, or the like may be used as the pressing force generation mechanism.

  Moreover, although the example which uses a regulator as a pressing force adjustment mechanism was shown in the said 1st Embodiment, this invention is not limited to this. In the present invention, for example, a manual valve, a solenoid valve, a pressure variable mechanism, a current control unit, a servo controller, or the like may be used as the pressing force adjustment mechanism.

  Further, in the first and second embodiments, the example of the configuration in which the flux (viscous fluid) is supplied from above the squeegee is shown, but the present invention is not limited to this. In this invention, you may provide a discharge part in the plate located under a squeegee, and may supply a viscous fluid.

  In the first and second embodiments, the squeegee detection unit detects the light from the light projecting unit by the light receiving unit and detects the presence / absence of the squeegee and the restricted state. Is not limited to this. In the present invention, the squeegee detection unit may detect the presence / absence of the squeegee and the regulation state using light other than light. For example, the squeegee detection unit may detect the presence / absence of the squeegee and the regulation state using sound (ultrasound) or radio waves. Further, the squeegee detection unit may detect the presence / absence of the squeegee and the regulation state using a mechanical switch. Further, the squeegee detection unit may use a transmission type sensor or a reflection type sensor.

  Moreover, although the example which provides the two interruption | blocking pins as a switching part was shown in the said 1st Embodiment, this invention is not limited to this. In the present invention, one blocking pin may be provided, or three or more blocking pins may be provided. Further, light from the light projecting unit may be blocked by a member other than the blocking pin.

1,200 Flux supply device (viscous fluid supply device, viscous fluid supply unit)
2,210 Plate 3,220 Squeegee 5,230 Squeegee holding part 6 Flux discharge part (replenishment part)
8, 241, 242 Squeegee detection unit 8a, 241a, 242a Emitting unit 8b, 241b, 242b Light receiving unit 14 Mounting unit 52, 232 Press direction regulating unit (regulating unit)
54 Rotating Support 56 Air Cylinder (Pressure Generation Mechanism)
100 Component mounting device 234 Contact part (switching part)
525 Blocking pin (switching part)
C Bare chip (parts)
S substrate

Claims (8)

A plate on which a viscous fluid is stretched and spread;
A squeegee that slides to smooth the viscous fluid on the plate;
A squeegee holding part in which the squeegee is installed;
A squeegee detection unit for detecting whether or not the squeegee is installed ,
The squeegee holding part includes a restricting part that restricts movement of the squeegee in a direction parallel to the pressing direction with respect to the plate,
The squeegee detection unit, the squeegee is placed, and the movement of the squeegee by the regulating unit has been configured to detect that it is regulated, the viscous fluid supply device. The squeegee detection unit includes a light projecting unit and a light receiving unit,
The squeegee holding unit includes a switching unit that switches the arrival of light from the light projecting unit to the light receiving unit,
The switching unit is configured to switch from the light projecting unit according to a regulation state in which movement of the squeegee by the regulation unit is regulated and a release state in which regulation of movement of the squeegee by the regulation unit is released. The viscous fluid supply device according to claim 1 , wherein the viscous fluid supply device is configured to switch the arrival of light to the light receiving unit. The switching unit is configured to switch the arrival of light from the light projecting unit to the light receiving unit when the regulation state and the release state of the regulation unit are switched. Item 3. The viscous fluid supply device according to Item 2 . The squeegee holding part further includes a rotation support part that rotatably supports the restriction part,
In the released state, the restricting portion is in contact with the turning support portion, and in the restricted state, the restricting portion moves away from the turning support portion so that the switching portion moves. The viscous fluid supply device according to claim 3 , which is configured. A pressing force generating mechanism that is connected to the restricting portion and generates a pressing force of the squeegee against the plate;
If the movement of the squeegee by the regulating portion is detected by the squeegee detecting unit that is regulated, the pressing force by the pressing force generating mechanism is configured to be generated, of claims 1 to 4 The viscous fluid supply device according to any one of the above. A replenisher for replenishing the plate with viscous fluid;
The viscous fluid supply according to any one of claims 1 to 5 , wherein when the squeegee detecting unit does not detect that the squeegee is installed, the viscous fluid is not replenished from the replenishing unit. apparatus. A plate on which a viscous fluid is stretched and spread;
A squeegee that slides to smooth the viscous fluid on the plate;
A squeegee holding part in which the squeegee is installed;
A squeegee detector that detects the presence or absence of the squeegee;
A replenisher for replenishing the plate with viscous fluid;
The viscous fluid supply device configured to prevent the viscous fluid from being replenished from the replenishing unit when the squeegee detecting unit does not detect that the squeegee is installed. A mounting part for mounting components on the board;
A viscous fluid supply unit for supplying viscous fluid to the component,
The viscous fluid supply unit is
A plate on which a viscous fluid is stretched and spread;
A squeegee that slides to smooth the viscous fluid on the plate;
A squeegee holding part in which the squeegee is installed;
Look including a squeegee detection section for detecting the presence or absence of installation of said squeegee,
The squeegee detection unit is a component mounting apparatus configured to detect that the squeegee is installed and movement of the squeegee in a direction parallel to the pressing direction of the plate is restricted .

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