JP5943992B2 - Suction nozzle - Google Patents

Description

  The present invention relates to a suction nozzle that sucks and holds a mounting component mounted on a circuit board.

  The suction nozzle sucks and holds the mounting component with a negative pressure, and detaches the mounting component with a positive pressure, so that the mounting operation of the mounting component on the circuit board can be performed. There are some parts with high adhesion, for example, rubber materials, etc., and when a highly adhesive member is adsorbed and held by the adsorption nozzle, the highly adhesive member is attached to the adsorption nozzle. In addition, it may be difficult to separate from the suction nozzle. Further, even in a mounting part that does not use a highly adhesive member, the mounting part may stick to the suction nozzle due to static electricity or the like, and may not be easily detached from the suction nozzle. Therefore, in the suction nozzle described in the following patent document, a flow path that connects the suction port and the outer peripheral surface of the suction nozzle is formed on a contact surface that is a surface that is in close contact with a mounted component that is suction-held. As a result, when the mounting component is detached, the mounting component is easily detached because air flows in the flow path formed on the contact surface.

JP 2009-154217 A

  In the suction nozzle described in the above-mentioned patent document, the attached component can be suitably detached to some extent when the attached component is detached. However, when sucking and holding the mounting component with negative pressure, air is sucked from the suction port, and even if the mounting component is in close contact with the contact surface, the suction port is not sealed because the flow path is formed on the contact surface. . For this reason, the holding | maintenance force of the mounting component by a suction nozzle becomes low, and there exists a possibility that a mounting component cannot be hold | maintained appropriately. This invention is made | formed in view of such a situation, and makes it a subject to provide the suction nozzle which can perform suitably detachment | leave of a mounting component, and suction holding | maintenance of a mounting component.

In order to solve the above-mentioned problem, the suction nozzle according to claim 1 of the present application is a suction surface that sucks and holds a mounting component to be mounted on a circuit board. And a suction port for sucking and holding the mounted component by sucking air, a recess formed in the contact surface, and an opening inside the recess to blow out air. And an air passage that is connected to the positive and negative pressure supply device, communicates with the suction port and the blowout port, and selectively supplies positive pressure and negative pressure . It is characterized by that.

  The suction nozzle according to claim 2 is the suction nozzle according to claim 1, further comprising a notch portion formed on the contact surface and notched from the recess to the outer peripheral surface of the suction nozzle. And

  The suction nozzle according to claim 3 is the suction nozzle according to claim 1 or 2, wherein the cross-sectional area of the opening of the concave portion to the contact surface is larger than the cross-sectional area of the air outlet. Features.

Moreover, the suction nozzle of Claim 4 is provided in the flow path to the said blower outlet of the said air passage in the suction nozzle of any one of Claim 1 thru | or 3, From the said air passage, A check valve is provided that allows air flow to the air outlet and prohibits air flow from the air outlet to the air passage.

  Further, the suction nozzle according to claim 5 is the suction nozzle according to any one of claims 1 to 4, comprising a plurality of the suction ports, and the plurality of suction ports surround the recess. It is arranged so that it may be arranged.

  The suction nozzle according to claim 6 is the suction nozzle according to any one of claims 1 to 5, wherein a cross-sectional area of the air outlet is larger than a cross-sectional area of the suction port. And

In the suction nozzle according to the first aspect, the suction port and the recess are formed on the contact surface, and the air outlet is opened inside the recess. For this reason, when air is sucked from the suction port and the mounting component comes into close contact with the contact surface, the suction port is sealed by the mounting component. Thereby, it becomes possible to suck and hold the mounted component with a large holding force. Further, when the mounting component is detached, the mounting component can be preferably detached by blowing air from the air outlet opening in the recess. Furthermore, the contact area between the suction nozzle and the mounting component is reduced by the recess formed on the contact surface. Thereby, it is possible to detach the mounted component more suitably. Therefore, according to the suction nozzle of the first aspect, it is possible to suitably perform detachment of the mounted component and suction holding of the mounted component. In the suction nozzle according to the first aspect, an air passage connected to the positive / negative pressure supply device is formed, and the suction port and the outlet are in communication with the air passage. Then, positive pressure and negative pressure are selectively supplied to the air passage. That is, it is possible to blow out air from the blowout port and suck air through the suction port with one air passage. Therefore, according to the suction nozzle of claim 1, it is possible to construct a suction nozzle having a simple structure.

  In the suction nozzle according to the second aspect, a cutout portion that is cut out from the concave portion to the outer peripheral surface of the suction nozzle is formed on the contact surface. Thereby, the air blown out from the air outlet flows toward the mounted component that is sucked and held, and the mounted component can be more preferably detached by the air flow. Further, the notch portion does not communicate with the suction port, and the suction port is kept sealed when the mounted component is sucked and held, so that the holding force of the mounted component by the suction nozzle does not decrease.

  In the suction nozzle according to the third aspect, the cross-sectional area of the opening to the contact surface of the recess is made larger than the cross-sectional area of the outlet. That is, it is possible to increase the area received by the mounting component that sucks and holds the air blown from the air outlet by causing the recess 100 to function as a buffer. Thereby, it becomes possible to detach | detach a mounting component suitably.

Further, the suction nozzle according to claim 4, and a check valve is provided in the flow path to outlet of d A passage by the check valve, the air flow to the air passage from the air outlet prohibition Has been. Thereby, an air outlet becomes an opening only for the blowing-out of air.

  In the suction nozzle according to claim 5, the plurality of suction ports are arranged so as to surround the outlet. Thereby, it becomes possible to hold | maintain a mounting component with sufficient balance.

  In the suction nozzle according to claim 6, the cross-sectional area of the blowout port is made larger than the cross-sectional area of the suction port. As a result, it is possible to increase the amount of air blown at the time of detaching the mounting component, and it is possible to preferably detach the mounting component.

It is a perspective view which shows the electronic component mounting apparatus with which the suction nozzle which is the Example of this invention was mounted | worn. It is a perspective view which shows the mounting head with which the electronic component mounting apparatus shown in FIG. 1 is provided in the state which removed the upper cover. It is sectional drawing which shows the suction nozzle which the mounting head shown in FIG. 2 has. It is sectional drawing in the AA line shown in FIG. It is sectional drawing which shows the suction nozzle of the modification 1. It is sectional drawing in the DD line shown in FIG. It is sectional drawing which shows the suction nozzle of the modification 2. It is sectional drawing in the FF line shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments and modifications of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

<Configuration of electronic component mounting device>
FIG. 1 shows an electronic component mounting apparatus (hereinafter sometimes abbreviated as “mounting apparatus”) 10. The figure is a perspective view in which a part of the exterior component of the mounting apparatus 10 has been removed. The mounting apparatus 10 includes one system base 12 and two electronic component mounting machines (hereinafter, may be abbreviated as “mounting machines”) 16 arranged side by side adjacent to each other on the system base 12. It is configured so as to perform an operation of mounting mounting components including electronic components on a circuit board. In the following description, the direction in which the mounting machines 16 are arranged is referred to as an X-axis direction, and a horizontal direction perpendicular to the direction is referred to as a Y-axis direction.

  Each of the mounting machines 16 included in the mounting apparatus 10 mainly includes a mounting machine main body 24 configured to include a frame unit 20 and a beam unit 22 overlaid on the frame unit 20, and a circuit board in the X-axis direction. A transport device 26 that transports and fixes a set position, a mounting head 28 that mounts a mounting component on a circuit board fixed by the transport device 26, and a mounting head 28 that is disposed on the beam portion 22 and that is mounted on the X-axis. A moving device 30 that moves in the direction and the Y-axis direction, and a supply device 32 that is disposed in front of the frame portion 20 and supplies the mounting component to the mounting head 28.

  The transport device 26 includes two conveyor devices 40 and 42, and the two conveyor devices 40 and 42 are parallel to each other and extend in the X-axis direction so that the central portion in the Y-axis direction of the frame portion 20. It is arranged. Each of the two conveyor devices 40 and 42 conveys the circuit board supported by each conveyor device 40 and 42 in the X-axis direction by an electromagnetic motor (not shown) and holds the circuit board fixedly at a predetermined position. It is supposed to be a structure.

  The moving device 30 is an XY robot type moving device, and includes an electromagnetic motor (not shown) that slides a slider 46 that holds the mounting head 28 in the X direction and an electromagnetic motor (not shown) that slides in the Y direction. The mounting head 28 can be moved to an arbitrary position by the operation of the two electromagnetic motors.

  The supply device 32 is disposed at the front end of the frame portion 20 and is a feeder-type supply device. The feeder-type supply device 32 has a structure in which the mounted components are sequentially supplied from the taped component in which the mounted components are taped to the supply position to the mounting head 28, and a plurality of tapes around which the taped components are wound. A feeder 48 and a plurality of feeding devices (not shown) for feeding out each of the plurality of tape feeders 48 are provided.

  The mounting head 28 is for mounting a mounting component on a circuit board held by the transport device 26, and as shown in FIG. 2, a mounting unit 52 for holding a suction nozzle 50 for sucking an electronic component at the tip. There are multiple. Each suction nozzle 50 communicates with an air passage to which a positive / negative pressure supply device (not shown) is connected, holds the electronic component by suction at a negative pressure, and holds the electronic component by being supplied with a slight positive pressure. The structure is to leave. The mounting unit 52 having a generally axial shape is held on the outer periphery of the unit holder 56 that rotates intermittently at an equiangular pitch in a state in which the axial direction is vertical. It extends downward from the bottom surface.

  Further, the unit holder 56 is intermittently rotated by an angle equal to the arrangement angle pitch of the mounting unit 52 by the holding body rotating device 58, and the mounting unit 52 held by the unit holder 56 is intermittently rotated. At the lifting / lowering station (station located at the foremost position), which is one stop position of the mounting unit 52 in intermittent rotation, the mounting unit 52 positioned at that station is lifted / lowered by the unit lifting / lowering device 60. Further, a stop position different from the lifting station is set as a unit rotation station, and the mounting unit 52 positioned at the station is rotated by the unit rotation device 62. Thereby, it is possible to change the vertical position of the electronic component held by suction and the holding posture of the electronic component.

  With the above-described structure, the mounting machine 16 can perform mounting work of mounting components on the circuit board held by the transport device 26 by the mounting head 28. Specifically, first, the transport device 26 transports the circuit board to the mounting work position, and the circuit board is fixedly held at that position. Then, the mounting head 28 is moved by the moving device 30 to the supply position of the mounting component by the tape feeder 48 of the supply device 32, and the suction nozzle 50 of the mounting head 28 is mounted using negative pressure at the supply position. Holds parts by suction. Next, the mounting head 28 holding the mounting component is moved to the mounting position on the circuit board by the moving device 30, and the suction nozzle 50 uses the positive pressure to release the mounting component, so that the circuit is A mounting component is mounted on the substrate.

<Installation nozzle structure>
As described above, in the mounting machine 16, the mounting operation is performed by the suction nozzle 50 sucking and holding the mounting component with a negative pressure and detaching the mounting component with a positive pressure. There is a highly adhesive member, for example, a rubber material or the like, in the case of holding the highly adhesive member by the suction nozzle 50, the member is attached to the suction nozzle 50, It may be difficult to separate from the suction nozzle 50. In addition, even in a mounting component that does not use a highly adhesive member, the mounting component may stick to the suction nozzle 50 due to static electricity or the like, and may not be easily detached from the suction nozzle 50. In view of such a situation, the mounting machine 16 has a concave portion formed on the surface that is in close contact with the mounting component, and air is blown into the concave portion so that the mounting component can be appropriately detached. A nozzle 50 is employed. Hereinafter, a specific structure of the suction nozzle 50 will be described.

  As shown in FIG. 3, a unit-side air passage 70 is formed in the mounting unit 52 that holds the suction nozzle 50 at the tip portion so as to extend in the axial direction. In the unit-side air passage 70, A positive / negative pressure supply device (not shown) is connected. On the other hand, a nozzle-side air passage 72 is formed coaxially with the unit-side air passage 70 in the suction nozzle 50, and the unit-side air passage 70 and the nozzle-side air passage 72 are connected to the suction nozzle 50. In the state of being held at 52, communication is made. Further, four suction ports (only two are shown in FIG. 3) 74 are formed on the lower end surface of the suction nozzle 50, and each suction port 74 communicates with the nozzle-side air passage 72. ing. Thus, air can be sucked from each suction port 74 of the suction nozzle 50, and the suction nozzle 50 can suck and hold electronic components at the suction port 74.

  The suction nozzle 50 includes an upper nozzle housing 76 that is detachably attached to the lower end portion of the attachment unit 52, a lower nozzle housing 78 that is fixedly fitted to the lower end portion of the upper nozzle housing 76, and a lower nozzle thereof. And a nozzle tip 80 which is fixedly fitted to the lower end of the housing 78. The upper nozzle housing 76 includes a main body portion 82 having a generally rectangular cross-sectional shape and a flange portion 84 formed on the outer peripheral surface of the main body portion 82, and the flange portion 84 is a substantially central portion in the axial direction of the main body portion 82. Is formed.

  The main body portion 82 is fitted into a mounting hole 86 formed in the lower end surface of the mounting unit 52 above the flange portion 84, and the mounting hole 86 is continuous with the unit-side air passage 70. A through hole 88 is formed in the main body portion 82 so as to extend in the axial direction, and the through hole 88 is connected to the unit-side air passage 70 by fitting the main body portion 82 into the attachment hole 86. The upper nozzle housing 76 is mounted on the lower end surface of the mounting unit 52 by attaching the upper surface of the flange portion 84 to the lower end surface of the mounting unit 52 in a state where the main body portion 82 is fitted in the mounting hole 86. . The upper nozzle housing 76 is attached to the attachment unit 52 via a mechanism that can be attached and detached with a single touch. However, since this mechanism is known, illustration and description thereof are omitted.

  The lower nozzle housing 78 has a generally rectangular tube shape, and the inner dimension of the lower nozzle housing 78 is substantially the same as the outer dimension of the lower end portion of the main body 82 of the upper nozzle housing 76. The lower end portion of the main body portion 82 is fixedly fitted into the upper end portion of the lower nozzle housing 78. Further, the outer dimension of the nozzle tip 80 is substantially the same as the inner dimension of the lower nozzle housing 78, and the nozzle tip 80 is fixedly fitted to the lower end of the lower nozzle housing 78. An air chamber 90 is defined between the upper end surface of the nozzle tip 80 and the lower end surface of the main body 82 of the upper nozzle housing 76, and a through hole 88 of the upper nozzle housing 76 is formed in the air chamber 90. Communicate.

  Moreover, as shown in FIG. 4 which is a cross-sectional view taken along the line AA in FIG. 3, a recess 100 is formed in the central portion of the lower end surface of the nozzle tip portion 80. The opening to the lower end surface of the nozzle tip 80 of the recess 100 is generally rectangular. Further, the nozzle tip from the four sides of the opening of the recess 100 made rectangular is formed on the lower end surface of the nozzle tip 80. Four cutouts 102 are also formed by cutting out on the outer peripheral surface of 80. In addition, four notches 104 communicating with the four notches 102 are also formed at the lower end of the lower nozzle housing 78 into which the nozzle tip 80 is inserted. It communicates with the outer peripheral surface of the lower nozzle housing 78, that is, the outer peripheral surface of the suction nozzle 50.

  The nozzle tip 80 in which the recess 100 and the four notches 102 are formed has a shape in which four rectangular columns are suspended from four corners of a rectangular member. As shown in FIG. 3, which is a sectional view taken along line BB in FIG. 4, four through holes 106 (only two are shown in FIG. 3) 106 extending in the axial direction are formed. The upper end of each through hole 106 opens into the air chamber 90, the lower end of each through hole 106 opens into the lower end surface of the nozzle tip 80, and the opening of each through hole 106 to the lower end surface of the nozzle tip 80 is open. A suction port 74 is formed.

  Further, the nozzle tip 80 is formed with a communication hole 108 that communicates the inside of the recess 100 and the air chamber 90, and a check valve 110 is provided in the communication hole 108. The check valve 110 is configured to allow air flow from the air chamber 90 to the recess 100 but prohibit air flow from the recess 100 to the air chamber 90. That is, air is allowed to blow out from the opening of the communication hole 108 into the recess 100, but air suction from the opening is prohibited, and the opening is connected to the air outlet 112 dedicated to air blowing. It has become.

  In the suction nozzle 50 having the above structure, the nozzle side air passage 72 is configured by the through hole 88, the air chamber 90, the through hole 106, and the communication hole 108, and negative pressure is supplied to the unit side air passage 70. In this case, that is, when air is sucked from the unit-side air passage 70, the air is sucked from the four suction ports 74 that open to the lower end surface of the nozzle tip 80 via the nozzle-side air passage 72. . As a result, the mounted component comes into close contact with the contact surface 114 which is the lower end surface of the suction nozzle 50, and the mounted component is sucked and held by the suction nozzle 50. At this time, when the mounting component comes into close contact with the contact surface 114, the suction port 74 is sealed by the mounting component. Thereby, it is possible to suck and hold the mounted component with a large holding force, and it is possible to preferably hold the mounted component by suction.

  Next, when the mounted component held by suction is detached from the suction nozzle 50, positive pressure is supplied to the unit-side air passage 70. That is, air is blown into the unit-side air passage 70. As a result, air is blown out from the suction port 74 and the blowout port 112 via the nozzle-side air passage 72, and the mounted component that is sucked and held is detached from the suction nozzle 50. In particular, even when the mounting component is in close contact with the contact surface 114 and it is difficult for air to be blown out from the suction port 74, the air outlet 112 is open to the inside of the recess 100 without being blocked by the mounting component. Air is blown out from the air outlet 112 into the recess 100. Since the recess 100 communicates with the outside of the suction nozzle 50 via the notches 102 and 104, the air blown into the recess 100 flows toward the mounting component, and then the suction nozzle. 50 flows outside. Such a flow of air makes it possible to suitably remove the mounted component that is in close contact with the contact surface 114.

  Further, since the concave portion 100 and the notches 102 and 104 are formed on the lower end surface of the suction nozzle 50, the contact area between the suction nozzle 50 and the mounting component is considerably reduced. Thereby, it is possible to detach the mounted component more suitably. Furthermore, the opening of the recessed part 100 is made larger than the blower outlet 112, and the recessed part 100 functions as a buffer. Thereby, the area which receives the air which blows off from the blower outlet 112 becomes large, and it becomes possible to remove | eliminate a mounting component more suitably.

<Modification 1>
In the suction nozzle 50 of the above embodiment, only one outlet 112 is formed, but it is possible to employ an adsorption nozzle having a plurality of outlets. The suction nozzle in which such a plurality of outlets are formed is shown in FIG. 5 and FIG. 5 is a cross-sectional view taken along line CC in FIG. 6, and FIG. 6 is a cross-sectional view taken along line DD in FIG.

  As shown in FIG. 5, the suction nozzle 120 includes an upper nozzle housing 122 that is detachably attached to the lower end portion of the attachment unit 52, and a lower nozzle housing that is fixedly fitted to the lower end portion of the upper nozzle housing 122. 124 and a nozzle tip 126 that is fixedly fitted to the lower end of the lower nozzle housing 124. The upper nozzle housing 122 includes a cylindrical portion 128 and a flange portion 130 formed on the outer peripheral surface of the cylindrical portion 128, and the flange portion 130 is formed at a substantially central portion in the axial direction of the cylindrical portion 128. . The cylindrical portion 128 is inserted into the mounting hole 86 of the mounting unit 52 above the flange portion 130, and the cylindrical portion 128 is inserted into the mounting hole 86 so that the inside of the cylindrical portion 128 is in the unit-side air passage. 70.

  The lower nozzle housing 124 has a cylindrical shape, and its inner diameter is substantially the same as the outer diameter of the cylindrical portion 128 of the upper nozzle housing 122. The lower end portion of the cylindrical portion 128 is fixedly fitted into the upper end portion of the lower nozzle housing 124. The nozzle tip 126 has a short cylindrical shape, and its outer diameter is substantially the same as the inner diameter of the lower nozzle housing 124, and the nozzle tip 126 is fixedly attached to the lower end of the lower nozzle housing 124. It is inserted. Note that an air chamber 132 is defined between the upper end surface of the nozzle tip portion 126 and the lower end surface of the cylindrical portion 128 of the upper nozzle housing 122, and the air chamber 132 has an inside of the cylindrical portion 128 of the upper nozzle housing 122. Are communicating.

  Further, as shown in FIG. 6, a recess 134 is formed at the center of the lower end surface of the nozzle tip 126, and the opening of the recess 134 to the lower end surface of the nozzle tip 126 is generally rectangular. Yes. Further, two cutout portions 136 are formed on the lower end surface of the nozzle tip portion 126, which are cut out from each of the four sides of the opening of the concave portion 134 that is rectangular to the outer peripheral surface of the nozzle tip portion 126. That is, eight notches 136 are formed on the lower end surface of the nozzle tip 126 from the opening of the recess 134 to the outer peripheral surface of the nozzle tip 126. Note that eight notches 138 communicating with the eight notches 136 are also formed at the lower end portion of the lower nozzle housing 124 into which the nozzle tip 126 is inserted, and the recesses 134 are formed by the notches 136 and 138. Is communicated with the outer peripheral surface of the lower nozzle housing 124, that is, the outer peripheral surface of the suction nozzle 120.

  Further, eight through holes 142 extending in the axial direction are formed so as to open to the contact surface 140 which is the lower end surface of the nozzle tip portion 126 where the concave portion 134 and the notch portion 136 are not formed. The opening of each through hole 142 to the lower end surface of the nozzle tip portion 126 is a suction port 144, and the eight suction ports 144 are opened at eight equal positions on the lower end surface of the nozzle tip portion 126. Yes. The upper end of each through hole 142 is open to the air chamber 132.

  The nozzle tip 126 is formed with two communication holes 146 that allow the inside of the recess 134 and the air chamber 132 to communicate with each other. Each communication hole 146 has a check valve for the suction nozzle 50 of the above embodiment. A check valve 148 having the same structure as 110 is provided. As a result, air is allowed to blow out from the opening of the communication hole 146 into the recess 134, but air suction from the opening is prohibited, and the opening is an air outlet 150 dedicated to blowing air. It has become.

  With such a structure, even in the suction nozzle 120 of Modification 1, the nozzle-side air passage 152 is formed by the inside of the cylindrical portion 128 of the upper nozzle housing 122, the air chamber 132, the through hole 142, and the communication hole 146. Similarly to the suction nozzle 50, the suction port 144 is sealed by the mounted component when the mounted component is held by suction. Thereby, it is possible to suck and hold the mounted component with a large holding force, and it is possible to preferably hold the mounted component by suction. In addition, the mounted component can be preferably detached by the flow of air blown from the blowout port 150, the function of the recess 134 as a buffer, the space-saving of the contact area, and the like. Further, in the suction nozzle 120, two outlets 150 having the same diameter as the outlet 112 of the suction nozzle 50 are formed, and a large volume of air can be blown out, so that the mounted parts can be more preferably detached. Is possible.

<Modification 2>
In the suction nozzles 50 and 120, the notch portions 102, 104, 136, and 138 that are notched from the concave portions 100 and 134 to the outer peripheral surfaces of the suction nozzles 50 and 120 are formed, but the suction nozzles that are not formed with the notch portions. It is also possible to adopt. Such a suction nozzle in which a notch is not formed is shown as a suction nozzle 160 of Modification 2 in FIGS. Since the suction nozzle 160 of the second modification has the same configuration as the suction nozzle 50 except that a notch is not formed, components having the same functions as those of the suction nozzle 50 will be described with reference to FIGS. Reference numeral 8 denotes the same reference numeral, and the description of the structure of the suction nozzle 160 is omitted. 7 is a cross-sectional view taken along line EE in FIG. 8, and FIG. 8 is a cross-sectional view taken along line FF in FIG.

  Similarly to the suction nozzle 50, the suction nozzle 160 of the modified example 2 can also be suitably held by suction when the suction port 74 is hermetically sealed by the mounting component when the mounting component is suction-held. . Further, when the mounting component is detached, the mounting component can be preferably detached by increasing the pressure in the recess 100 by blowing air from the air outlet 112. Further, even in the suction nozzle 160, the mounting part can be more preferably detached by reducing the contact area between the suction nozzle 160 and the mounting part by the recess 100. Further, like the suction nozzles 50 and 120, the concave portion 100 functions as a buffer, so that an area for receiving the air blown from the blowout port 112 is increased, and it is possible to more suitably detach the mounted component. ing.

  Incidentally, the suction nozzles 50, 120, and 160 are examples of suction nozzles in the above-described embodiments and modifications. The nozzle-side air passage 72, the suction port 74, the concave portion 100, the cutout portions 102 and 104, the check valve 110, the blowout port 112, and the contact surface 114 constituting the suction nozzle 50 are the air passage, the suction port, the concave portion, the cutout portion, It is an example of a check valve, an air outlet, and a contact surface. The concave portion 134, the notches 136, 138, the contact surface 140, the suction port 144, the check valve 148, the blowout port 150, and the nozzle-side air passage 152 that constitute the suction nozzle 120 include a recess, a notch, a contact surface, a suction port, It is an example of a check valve, an air outlet, and an air passage. The nozzle-side air passage 72, the suction port 74, the concave portion 100, the check valve 110, the blowout port 112, and the close contact surface 114 constituting the suction nozzle 160 are the air passage, the suction port, the concave portion, the check valve, the blowout port, and the close contact surface. It is an example.

  In addition, this invention is not limited to the said Example and modification, It is possible to implement in the various aspect which gave various change and improvement based on the knowledge of those skilled in the art. Specifically, for example, in the above-described embodiments and modifications, the suction ports 74 and 144 and the air outlets 112 and 150 communicate with the nozzle-side air passages 72 and 152 to which positive pressure and negative pressure are selectively supplied. The check valves 110 and 148 are provided at the air outlets 112 and 150, but a dedicated air passage may be communicated with each of the suction port and the air outlet. That is, the suction port may be communicated with an air passage to which positive pressure and negative pressure are selectively supplied, and the air outlet may be communicated with an air passage to which only positive pressure is supplied.

  50: Adsorption nozzle 72: Nozzle side air passage (air passage) 74: Suction port 100: Recess 102: Notch 104: Notch 110: Check valve 114: Contact surface 120: Adsorption nozzle 134: Recess 136: Notch 138 : Notch 140: Contact surface 144: Suction port 150: Air outlet 152: Nozzle side air passage (air passage) 160: Adsorption nozzle

Claims (6)

In the suction nozzle that sucks and holds the components to be mounted on the circuit board,
A contact surface that is a surface that is in close contact with the mounted component to be held by suction;
A suction port for opening the close contact surface and sucking and holding the mounted component by sucking air; and
A recess formed in the contact surface;
An air outlet that opens inside the recess and blows off the mounting parts by blowing out air ;
An adsorption nozzle, comprising: an air passage connected to a positive / negative pressure supply device, communicating with the suction port and the blowout port, and selectively supplying positive pressure and negative pressure . The suction nozzle
2. The suction nozzle according to claim 1, further comprising a notch formed on the contact surface and notched from the recess to an outer peripheral surface of the suction nozzle.   The suction nozzle according to claim 1 or 2, wherein a cross-sectional area of an opening of the concave portion to the contact surface is larger than a cross-sectional area of the blower outlet. The suction nozzle,
Wherein provided on the flow path to the outlet of the air passage, wherein while permitting air flow to the air outlet from the air passage, a check valve for inhibiting the air flow to the air passage from the air outlet suction nozzle according to any one of claims 1 to 3, characterized in that with a. The suction nozzle includes a plurality of the suction ports,
The suction nozzle according to claim 1, wherein the plurality of suction ports are disposed so as to surround the concave portion.   The suction nozzle according to any one of claims 1 to 5, wherein a cross-sectional area of the air outlet is larger than a cross-sectional area of the suction port.

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