JP6630572B2 - Surface mounting machine - Google Patents

Description

  The present invention relates to a technique for cooling a surface mounter.

  2. Description of the Related Art Conventionally, a surface mounter that mounts electronic components on a printed circuit board has been known. The surface mounter has a motor, a linear motor, and the like as a drive source. When these motors or linear motors generate heat, the structural members such as the X-beam and the Y-beam expand thermally, so it is preferable to cool them.

  Patent Document 1 listed below describes the following points in this type of surface mounting machine. The X-beam that supports the mounting head so as to be movable in the X direction is provided with a pair of intake and exhaust ports including an upper intake and an exhaust port and a lower intake and exhaust port that are formed to communicate with each other via a hollow portion. . Then, when the X beam moves in the Y direction perpendicular to the X direction, a relative air flow flows between the upper intake and exhaust ports and the lower intake and exhaust ports through the hollow portion, and as a result, the X beam is cooled by air. Is done. That is, in Patent Literature 1, the X-beam is cooled by flowing air into the X-beam through the intake / exhaust port.

JP 2011-258806 A

By the way, when the surface mounter body is covered with the cover, heat is trapped in the storage surrounded by the cover, and it is difficult for the temperature of the heating element such as the motor to decrease.
The present invention has been completed based on the above situation, and has as its object to reduce the temperature of a heating element such as a motor by ventilating the inside of a refrigerator using the movement of a beam.

  The present invention is a surface mounter for mounting an electronic component on a printed circuit board, comprising: a surface mounter main body; and a cover that covers the surface mounter main body, wherein the surface mounter main body includes a first beam; A second beam movably supported in a first direction with respect to the first beam; and a mounting head supported with respect to the second beam, wherein the cover has a moving range of the second beam. And at least two air suction and exhaust holes at positions corresponding to the first and second air suction and exhaust holes, the two air suction and exhaust holes are located apart from each other in the first direction, and the second beam is moved in the first direction in the cover. Ventilate the air.

  In this configuration, in the present configuration, when the second beam moves in the first direction, air is taken in from the outside at the intake / exhaust hole on one side, and the air in the warehouse is exhausted to the outside at the intake / exhaust hole on the other side. You. Therefore, it is possible to ventilate the inside of the refrigerator covered with the cover without using a fan, and it is possible to lower the temperature of the heating element in the refrigerator.

The following configuration is preferable as an embodiment of the present invention.
The second beam reciprocates in the first direction between a component removal position where the mounting head takes out an electronic component from a feeder and a mounting work area where the mounting head mounts the electronic component on a printed circuit board. One of the two intake / exhaust holes is located at a position corresponding to the component removal position, and the other is located at a position corresponding to the mounting work area.

  In this configuration, the inside of the refrigerator can be ventilated by using the operation of moving the second beam from the component extracting position to the mounting work area. In addition, the inside of the refrigerator can be ventilated by using the operation of moving the second beam from the mounting work area to the component extracting position.

  The surface mounter main body includes a linear motor that moves the second beam in the first direction with respect to the first beam, and the linear motor is provided on the first beam and includes a stator including a magnet. , A mover provided on the second beam and comprising an electromagnetic coil. In this configuration, the electromagnetic coil provided in the second beam can be cooled by ventilating the inside of the refrigerator.

  There is a fan for cooling the electromagnetic coil of the second beam corresponding to a position where the stop frequency is high in the moving range of the second beam. In this configuration, the frequency of cooling the electromagnetic coil with the fan increases, so that the electromagnetic coil can be cooled efficiently.

  The position where the stop frequency is high is a component pick-up position where the mounting head picks up an electronic component from the feeder in the moving range of the second beam, and the electromagnetic wave of the second beam corresponds to the component pick-up position. A cooling fan for cooling the coil; In this configuration, since the electronic component is taken out of the feeder, the fan can cool the electromagnetic coil every time the X beam moves to the component taking-out position.

  A fan that cools the electromagnetic coil of the second beam from the first direction that is a moving direction of the second beam. With this configuration, the electromagnetic coil can be cooled by the fan not only during the period when the second beam is stopped but also during movement.

  The present invention is a surface mounter that mounts electronic components on a printed board, a surface mounter that mounts electronic components on a printed board, a surface mounter body, and a cover that covers the surface mounter body, Wherein the surface mounter main body includes a first beam, a second beam supported movably in a first direction with respect to the first beam, and a mounting head supported with respect to the second beam. Wherein the cover has a suction / exhaust hole at a position corresponding to a component take-out position where the mounting head takes out an electronic component from the feeder, and the suction / exhaust hole is used to move the second beam in the first direction. Accordingly, the air in the cover is ventilated.

  In this configuration, when the second beam moves away from the component extraction position in the first direction, air is sucked in from the outside through the air intake / exhaust hole, and conversely, the second beam moves in the first direction to move the component. When approaching the take-out position, the air in the storage can be exhausted through the intake hole.

  According to the present invention, the heating element in the refrigerator can be cooled by ventilating the refrigerator using the movement of the second beam.

FIG. 2 is a perspective view of the surface mounter according to the first embodiment. Front view of surface mounter Top view of surface mounter Perspective view of batch exchange cart and feeder Perspective view of the surface mounter body Perspective view of mounting head 70 and X beam Front view of mounting head 70 and X-beam (partly shown in cross section) Top view of surface mounter body Top view of surface mounter body FIG. 4 is a plan view of a surface mounter main body according to a second embodiment. Front view of mounting head 70 and X-beam (partly shown in cross section) FIG. 4 is a plan view of a surface mounter main body according to a third embodiment.

<First embodiment>
Embodiment 1 will be described with reference to FIGS. 1 to 9. 1 is a perspective view of the surface mounter, FIG. 2 is a front view of the surface mounter, and FIG. 3 is a plan view of the surface mounter. FIG. 4 is a perspective view of the batch exchange cart and the feeder. FIG. 5 is a perspective view of the surface mounter main body.

  The surface mounter 1 includes a surface mounter main body 10 that mounts electronic components on the printed circuit board P, and a cover 100 that covers the surface mounter main body 10. In the following description, the transport direction of the printed circuit board P is defined as the X direction (front-back direction). Further, a direction orthogonal to the transport direction of the printed circuit board P is defined as a Y direction (left-right direction), and a vertical direction is defined as a Z direction. Note that the Y direction is the “first direction” of the present invention, and the X direction is the “second direction” of the present invention. L shown in FIG. 2 indicates the center of the surface mounter 1 in the Y direction.

1. Configuration of Cover The cover 100 includes a front cover 110 that covers the front surface of the surface mounter main body 10, a rear cover 120 that covers the rear surface of the surface mounter main body 10, and an end cover 130 that covers four corners of the surface mounter main body 10. And a top cover 150 that covers the top surface of the surface mounter body 10.

  The front cover 110 is divided into two covers 110A and 110B at the center, and the covers 110A and 110B share and cover the front left half and the front right half of the surface mounter body 10, respectively. As shown in FIG. 1, a carry-in entrance 113 for the printed circuit board P is provided at the center of the front cover 110, so that the printed circuit board P can be carried into the surface mounter main body 10.

  The rear cover 120 also has the same structure as the front cover 110, and the left half of the rear surface and the right half of the rear surface of the surface mounter body 10 are shared and covered by two covers divided at the center. A carry-out port (not shown) is provided at the center of the rear cover 120 so that the printed circuit board P after the mounting process is carried out from the surface mounter main body 10.

  The top cover 150 includes side covers 150A and 150B and a center cover 150C, as shown in FIG. The center cover 150 </ b> C has a long shape in the front-rear direction, and covers an upper central portion of the surface mounter main body 10. The side covers 150A and 150B are located on the left and right sides of the center cover 150C, and cover the upper left half and the upper right half of the surface mounter body 10. Each of the side covers 150A and 150B can be opened and closed.

  Mounting spaces S for mounting a feeder F for supplying electronic components are provided on both left and right sides of the surface mounter 1. In the present embodiment, a feeder F is attached to the mounting space S via a cart G shown in FIG. 4, and a large number of feeders F can be replaced collectively.

2. Configuration of Surface Mounter Main Body 10 FIG. 5 is a perspective view of the surface mounter main body, and FIG. 6 is a perspective view of the mounting head. The surface mounter main body 10 includes a base 11, a transport conveyor 15, three Y beams (corresponding to the "first beam" of the present invention) 21 to 23, and four X beams (the "first beam" of the present invention). 41A to 41D), four mounting heads 70A to 70D, an X motor 80, and a Y motor 90. The X beams 41A to 41D are collectively referred to as 41.

  The base 11 has a rectangular shape in plan view, and has a flat upper surface. The transport conveyor 15 is arranged at a substantially central position of the base 11 in the Y direction. The transport conveyor 15 includes a pair of conveyor belts that are driven to circulate in the X direction, and transports the printed circuit board P on the base 11 in the X direction. In this embodiment, two mounting work positions are set at the center of the base, and the printed circuit board P carried in from the carry-in entrance 113 of the front cover 110 performs the mounting work at each mounting work position, and then performs the rear cover operation. It is configured to be carried out from the carry-out port 120.

  The three Y beams 21 to 23 are made of metal such as aluminum die cast, for example. The Y beam 21 is arranged at the front end of the base 11, the Y beam 22 is arranged at the center of the base 11, and the Y beam 23 is arranged at the rear end of the base 11. The Y beams 21 to 23 have a long shape in the Y direction and are arranged in parallel with the Y direction. An opening 24 for transporting the printed circuit board P is formed at the center of the Y beams 21 to 23 in the Y direction.

  On the upper surfaces of the Y beams 21 to 23, Y rails 25 are arranged along the Y direction. One Y rail 25 is provided for each of the front and rear Y beams 21 and 23, and two Y rails are provided for the central Y beam 22. A holding plate 31 is provided on the upper surfaces of the Y beams 21 and 23.

  The holding plate 31 is made of, for example, metal such as aluminum die cast. The holding plate 31 has a long shape in the Y direction, similarly to the Y beams 21 and 23. On the inner surface side of the holding plate 31, magnets 91 and 92 are held as described later. Further, through holes 32 are formed in the holding plate 31 at regular intervals in the Y direction.

  The X beams 41A and 41B are made of metal such as aluminum die cast, for example. The X beams 41A and 41B have a long shape in the X direction, and the beam blocks 43 are fixed to both ends in the X direction.

  As shown in FIGS. 5 and 6, the X beam 41A and the X beam 41B are arranged so as to straddle the Y beam 21 and the Y beam 22 in the X direction. Sliders 45 are fixed to the lower surfaces of the beam blocks 43 at both ends, respectively. Each slider 45 is slidably fitted on a Y rail 25 disposed on the upper surface of the Y beams 21 and 22. From the above, the X beams 41A and 41B can slide in the Y direction by the guide action of the slider 45 and the Y rail 25.

  The X beams 41C and 41D have the same structure, and each slider 45 is slidably fitted to the Y rail 25 disposed on the upper surface of the Y beams 22 and 23. From the above, the X beams 41C and 41D can slide in the Y direction by the guide action of the slider 45 and the Y rail 25.

  As described above, the X beams 41A and 41B are slidably supported in the Y direction by the Y beams 21 and 22, and the X beams 41C and 41D are slidable in the Y direction by the Y beams 22 and 23. Supported.

  The mounting heads 70A to 70D are attached to the respective X beams 41A to 41D via a base plate 75 so as to be slidable in the X direction. Reference numeral 42 shown in FIG. 6 is an X rail installed on the X beam 41C, and reference numeral 72 is a slider installed on the base plate 72. The slider 72 is slidably fitted to the X rail 42, and the mounting head 70C slides in the X direction with respect to the X beam by the guiding action of the X rail 42 and the slider 72.

  The mounting heads 70 </ b> A to 70 </ b> D are rotary type heads that can rotate as a whole about an axis in the Z direction, and support a plurality of mounting shafts 73 at equal intervals in the circumferential direction.

  At the lower end of each mounting shaft 73, a suction nozzle (not shown) is detachably attached. The suction nozzle sucks the electronic component by the supplied negative pressure, and opens the sucked electronic component by supplying the positive pressure.

  Next, an X motor 80 which is an example of a driving device for moving the mounting heads 70A to 70D in the X direction will be described. As shown in FIG. 6, a plurality of magnets 81 are arranged in the X beam 41C in the X direction so that the polarities are alternately arranged. On the other hand, an electromagnetic coil 85 is fixed to the mounting head 70C. The electromagnetic coil 85 is wound around a core and faces the magnet 81 with a gap. The magnet 81 and the electromagnetic coil 85 are a stator and a mover, and constitute a linear motor. Therefore, when the electromagnetic coil 85 is energized, a propulsive force in the X direction is generated, and the mounting head 70C can reciprocate in the X direction. The X beams 41A, 41B, and 41D also have an X motor 80 as in the case of the X beam 41C, and the four mounting heads 70A to 70D have a structure that can reciprocate independently in the X direction. I have.

  Next, a Y motor 90 which is an example of a driving device that moves the X beams 41A to 41D and the mounting heads 70A to 70D in the Y direction will be described. As shown in FIG. 7, among the beam blocks 43 located on both sides in the X direction of the X beam 41A, the electromagnetic coil 95A is fixed to the outer (left side in FIG. 7) beam block 43. The electromagnetic coil 95A is wound around a core. On the other hand, magnets 91 and 92 are arranged on the holding plate 31 fixed on the Y rail 21 on the upper and lower sides of the electromagnetic coil 95A with a gap from the electromagnetic coil 95A. The magnets 91 and 92 are arranged in the Y direction so that the polarities are alternately arranged.

  The magnets 91 and 92 and the electromagnetic coil 95A are a stator and a mover, and constitute a linear motor. Therefore, when the electromagnetic coil 95A is energized, a propulsive force in the Y direction is generated, and the X beam 41A and the mounting head 70A can reciprocate in the Y direction.

  The X beams 41B to 41D also have electromagnetic coils 95B to 95D similarly to the X beam 41A, and the four X beams 41A to 41D and the four mounting heads 70A to 70D are independently Y It is structured to reciprocate in the direction.

  The surface mounter body 10 is of a two-stage front and rear type as shown in FIG. 8, and uses a mounting head 70A and a mounting head 70B in a front mounting work position shown in a lower position in FIG. Thus, the operation of mounting the electronic components on the printed board P1 is performed. In the rear mounting operation position shown in the upper position in FIG. 8, the mounting operation of the electronic component on the printed circuit board P2 is performed using the mounting head 70C and the mounting head 70D.

  Note that the mounting head 70A and the mounting head 70B alternately perform the operation of mounting the electronic component and the operation of removing the electronic component from the feeder F. Similarly, the mounting head 70C and the mounting head 70D alternately perform the operation of mounting the electronic component and the operation of removing the electronic component from the feeder. By performing the work alternately with the two mounting heads 70 in this manner, there is no need to interrupt the mounting work during the time of taking out the electronic component from the feeder F, and it is possible to improve the mounting efficiency.

3. X Beam Movement Range The mounting heads 70A to 70D perform an operation of picking up an electronic component from the feeder F and an operation of mounting the electronic component on the printed circuit board P. To perform these two operations, it is necessary to reciprocate the mounting heads 70A to 70D in the Y direction, and the moving range of the X beams 41A to 41D in the Y direction is determined in relation to these two operations.

  In the following description, the “component removal position Pu” refers to a stop position (a stop position in the Y direction) of the X beams 41A to 41D when the mounting heads 70A to 70D perform an operation of picking up an electronic component from the feeder F. Shall mean. In the example of FIG. 9, two X beams, the X beam 41B and the X beam 41C, are stopped at the component extraction position Pu.

  The “mounting work area J” is a moving range (moving range in the Y direction) of the X beams 41A to 41D when the mounting heads 70A to 70D perform a mounting operation of mounting an electronic component on the printed circuit board P. Shall mean. In the example of FIG. 9, two X beams, X beam 41A and X beam 41D, are located in mounting work area J.

  Since the X beams 41A to 41D reciprocate between the above-described component extraction position "Pu" and the mounting work area "J", the moving range in the X beams 41A to 41DY direction is "Ua" as shown in FIG. ~ Ud ". Note that “K1” is a stroke end outside the X beam 41A to 41D in the Y direction (outside the base), and “K2” is a stroke end inside the X beam 41A to 41D in the Y direction (the base center side).

4. Ventilation Structure in Storage By the way, the entire surface mounter main body 10 is covered with a cover 100 except for a mounting space S of the feeder F. When the feeder F is mounted, the entire surface of the main body 10 is covered with the cover 100. Therefore, when the electromagnetic coil 85 of the X motor 80 or the electromagnetic coil 95 of the Y motor 90 generates heat, heat is trapped in the interior (in the cover), and the temperature of the heating elements such as the electromagnetic coils 85 and 95 is difficult to decrease. .

  Therefore, in the present embodiment, two intake / exhaust holes 115A and 115B (collectively 115) and two intake / exhaust holes 116A and 116B (collectively) are provided on the front cover 110 that covers the front side in the X direction of the surface mounter body 10. 116). As shown in FIG. 2, two intake / exhaust holes 115A and 116A are provided on the left surface of front cover 110, and two intake / exhaust holes 115B and 116B are provided on the right surface of front cover 110. Each of these intake / exhaust holes 115A, 116A, 115B, 116B is composed of a large number of minute holes.

  Further, as shown in FIG. 7, the intake / exhaust holes 115A and 116A are located at a height corresponding to the X beam 41A. Specifically, the X-beam 41A and the whole hole overlap each other in the height direction, and are located in front of the electromagnetic coil 95A. Further, as shown in FIG. 9, the position in the Y direction is determined corresponding to the moving range Ua of the X beam 41A. Specifically, the air intake / exhaust hole 115A is provided at a position overlapping with the mounting work area (area located at the time of mounting work) J of the X beam 41A in the Y direction (a position overlapping when viewed from the X direction). The air intake / exhaust hole 116A is provided at a position overlapping the component extraction position Pu of the X beam 41A (a position where the X beam 41A stops at the time of component extraction) Pu in the Y direction (a position overlapping when viewed from the X direction). In FIG. 9, the external shape of each of the X beams 41A to 41D is indicated by a broken line frame.

  The same applies to the intake / exhaust holes 115B and 116B, which are at a height position corresponding to the X beam 41B. Specifically, the X-beam 41B and the whole hole overlap each other in the vertical direction (Z direction), and are located in front of the electromagnetic coil 95A. Further, as shown in FIG. 9, the position in the Y direction is determined corresponding to the moving range Ub of the X beam 41B. Specifically, the air intake / exhaust hole 115B is provided at a position overlapping with the mounting work area (area located at the time of mounting work) J of the X beam 41B in the Y direction (a position overlapping when viewed from the X direction). The air intake / exhaust hole 116A is provided at a position overlapping the component extraction position Pu of the X beam 41B (the position where the X beam 41B stops at the component extraction) Pu in the Y direction (position overlapping when viewed from the X direction).

  In this manner, the intake / exhaust hole 115A and the intake / exhaust hole 116A are provided corresponding to the Y direction movement range Ua of the X beam 41A, and the intake / exhaust hole 115B and the intake / exhaust hole 116B are provided corresponding to the Y direction movement range Ub of the X beam 41B. By providing them, the inside of the refrigerator (inside the cover 100) can be ventilated as the X beams 41A and 41B move in the Y direction.

  That is, when the X beam 41A moves rightward in the Y direction from the component extraction position Pu toward the mounting operation area J, air is taken in from the outside into the refrigerator at the suction / exhaust hole 116A on the component extraction position Pu side, and the mounting operation area J side The air in the refrigerator is exhausted to the outside through the intake / exhaust hole 115A (see the white arrow A shown in FIG. 9). Moreover, when the X beam 41A moves to the mounting work area J, the electromagnetic coil 95A, which is a heating element, is located in front of the air intake / exhaust hole 115A. Therefore, with the movement of the X beam 41A, it is possible to intensively ventilate around the electromagnetic coil 95A, which is a heating element.

  Further, when the X beam 41B moves rightward in the Y direction from the mounting work area J toward the component removal position Pu, air is taken in from the outside into the refrigerator at the suction / exhaust hole 115B on the mounting work area J side, and the component removal position Pu side , The air in the refrigerator is exhausted to the outside (see white arrow B shown in FIG. 9). Moreover, when the X beam 41B moves to the component extraction position Pu, the electromagnetic coil 95B, which is a heating element, is located in front of the air intake / exhaust hole 116B. Therefore, with the movement of the X beam 41B, it is possible to intensively ventilate the periphery of the electromagnetic coil 95B, which is a heating element.

  As shown in FIG. 9, the rear cover 120 that covers the rear side in the X direction of the surface mounter main body 10 also has the same arrangement as the front cover 110, and has two intake and exhaust holes 125A and 125B and two intake and exhaust holes 116A and 116B. Is provided, and the inside of the refrigerator (inside the cover 100) can be ventilated as the X beams 41C and 41D move in the Y direction.

  As described above, in the present embodiment, since the inside of the refrigerator can be ventilated by moving the X beams 41A to 41D in the Y direction, the temperature in the refrigerator can be reduced. In addition, with the movement of each of the X beams 41A to 41D, it is possible to intensively ventilate around the electromagnetic coils 95A to 95D, which are heating elements. For this reason, the electromagnetic coils 95A to 95D, which are heating elements, can be efficiently cooled, so that thermal expansion of structural members such as the X beams 41A to 41D and the Y beams 21 to 23 can be suppressed. It is possible to maintain component mounting accuracy.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The second embodiment has a configuration in which intake fans 200A to 200D are added to the first embodiment in order to cool the electromagnetic coils 95A to 95D of the X beams 41A to 41D.

  More specifically, as shown in FIG. 10, each of the intake fans 200A to 200D is provided at a position corresponding to the component extraction position Pu of each of the X beams 41A to 41D in the Y direction. Each of the intake fans 200A to 200D is oriented in the X direction, which is the length direction of the X beam 41, and is drawn in from the outside (in the center of the base) in the X direction as indicated by a white arrow C in FIG. To send the air.

  As shown in FIG. 11, each of the intake fans 200A to 200D is mounted on the outer surface of the holding plate 31 at the same height as the electromagnetic coils 95A to 95D. The holding plate 31 is provided with through holes 32 corresponding to the mounting positions of the respective intake fans 200A and 200D. Although FIG. 11 illustrates the mounting structure of the intake fan 200A, the other intake fans 200B to 200D have the same mounting structure.

  Therefore, when each of the X beams 41A to 41D moves to the component extraction position Pu, as shown in FIG. 11, the electromagnetic coils 95A to 95D are located in front of the intake fans 200A to 200D. The electromagnetic coils 95A to 95D can be cooled. That is, by driving the intake fans 200A to 200D, the outside air sucked from the intake / exhaust holes 116A, 116B, 126A, 126B through the through holes 32 of the holding plate 31, as shown by white arrows C in FIGS. Then, it is sprayed on the electromagnetic coils 95A to 95D. Therefore, the electromagnetic coils 95A to 95D can be cooled.

  In the example of FIG. 10, since the two X beams of the X beam 41B and the X beam 41C are located at the component extraction position Pu, the electromagnetic coil 95B of the X beam 41B can be cooled by the intake fan 200B. The electromagnetic coil 95C of the X beam 41C can be cooled by the intake fan 200C.

  Further, the front cover 110 and the rear cover 120 are provided with air intake / exhaust holes 115, 116, 125, 126 at exactly the same positions as in the first embodiment. Therefore, when the X beams 41A to 41D move in the Y direction between the component extraction position Pu and the mounting work area J, the inside of the refrigerator is naturally ventilated by the operation of the air intake and exhaust holes 115, 116, 125, and 126. Therefore, the electromagnetic coils 95A to 95D can be cooled even during the movement of the X beams 41A to X41D.

  That is, in the configuration of the second embodiment, while the X beams 41A to 41D are stopped at the component extraction position Pu, the electromagnetic coils 95A to 95D are cooled by the intake fans 200A to 200D, and the X beams 41A to 41D are moved. Cools the electromagnetic coils 95A to 95D by ventilation in the refrigerator. Therefore, the cooling performance is high, and the temperatures of the electromagnetic coils 95A to 95D can be effectively reduced.

  Further, in this example, the intake fans 200A to 200D are provided corresponding to the component extraction positions Pu of the X beams 41A to 41D. The reason for this is that the component extraction positions Pu frequently stop the X beams 41A to 41D. Because. That is, if the fans 200A to 200D are provided corresponding to the positions where the stop frequency is high, the frequency of cooling the electromagnetic coils 95A to 95D increases, so that the cooling effect of the electromagnetic coils 95A to 95D is high, The temperature of 95A to 95D can be efficiently reduced.

  In addition, the air suction directions of the intake fans 200A to 200D do not change unless the rotation directions are reversed. Therefore, depending on the direction of the airflow during the ventilation in the compartment, the suction direction of the intake fans 200A to 200D may be opposite to the airflow during the ventilation in the compartment.

  For example, when the X-beams 41A to 41D are moved from the mounting work area J toward the component removal position Pu, if the respective intake fans 200A to 200D are kept driven, the intake air flows in the direction of the airflow due to ventilation. The intake directions of the fans 200A to 200D are reversed, and the intake fans 200A to 200D obstruct the ventilation in the refrigerator. Therefore, when the intake directions of the intake fans 200A to 200D are opposite to the direction of the air flow during ventilation in the refrigerator, it is preferable to stop the intake fans 200A to 200D.

<Embodiment 3>
Next, a third embodiment of the present invention will be described with reference to FIG.
The third embodiment differs from the second embodiment in the mounting positions of the intake fans 200A to 200D and the direction in which air is sent.
More specifically, as shown in FIG. 12, the intake fans 200A and 200B are located on both sides of the Y beam 21 in the Y direction. Each of the intake fans 200A and 200B is oriented in the Y direction, which is the length direction of the Y beam 21, and is drawn in from the outside (in the center of the base) in the Y direction as indicated by a white arrow D in FIG. To send the air.

  The position of the intake fan 200A in the X direction corresponds to the position of the electromagnetic coil 95A fixed to the X beam 41A, and the position of the intake fan 200B in the X direction is the position of the electromagnetic coil 95B fixed to the X beam 41B. It corresponds to.

  Next, the intake fans 200C and 200D are located on both sides of the Y beam 23 in the Y direction. Each of the intake fans 200C and 200D is oriented in the Y direction, which is the length direction of the Y beam 23, and is drawn in from the outside (the center side of the base) in the Y direction as shown by a white arrow D in FIG. To send the air.

  The position of the intake fan 200C in the X direction corresponds to the position of the electromagnetic coil 95C fixed to the X beam 41C, and the position of the intake fan 200D in the X direction is the position of the electromagnetic coil 95D fixed to the X beam 41D. It corresponds to.

  Then, when each of the X beams 41A to 41D moves to the component extraction position Pu, the electromagnetic coils 95A to 95D are brought close to the intake fans 200A to 200D. Therefore, the electromagnetic coils 95A to 95D can be cooled by driving the intake fans 200A to 200D to send air in the Y direction.

  In the example of FIG. 12, since two X beams, the X beam 41B and the X beam 41C, are located at the component extraction position Pu, the electromagnetic coil 95B of the X beam 41B can be cooled by the intake fan 200B. The electromagnetic coil 95C of the X beam 41C can be cooled by the intake fan 200C.

  In the third embodiment, the moving direction (Y direction) of the X beams 41A to 41D and the direction (Y direction) in which the intake fans 200A to 200D send air coincide with each other. Therefore, even if the X beams 41A to 41D move in the Y direction from the component take-out position Pu, the electromagnetic coils 95A to 95D are connected while the X beams 41A to 41D are within a range where air from the intake fans 200A to 200D can reach. Can be cooled. Therefore, compared to the configuration of the second embodiment, the electromagnetic coils 95A to 95D can be further cooled.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the first embodiment, a linear motor is illustrated as an example of the X motor 80 and the Y motor 90. The X motor 80 and the Y motor 90 are not necessarily linear motors as long as they can drive the mounting head and the X beam, and may be ordinary motors that rotate the rotating shaft in the circumferential direction.

  (2) In the first embodiment, the intake / exhaust hole 115A is provided in the front cover 110A at a position overlapping the mounting work area J of the X beam 41A in the Y direction, and the intake / exhaust hole 116A is provided in the front cover 110A. In the example shown in FIG. The two intake / exhaust holes 115A and 116A only need to be within the moving range of the X beam 41A (that is, the position overlapping the moving range Ua in the Y direction), and it is not always necessary to mount the mounting area J of the X beam 41A and the parts of the X beam 41A. It does not have to overlap with the extraction position Pu.

  In addition, even when there is no positional relationship overlapping the movement range Ua in the Y direction, such as when the X-beam 41 is out of the movement range Ua, the two intake / exhaust holes 115A and 116A are located near the end positions K1 and K2 of the movement range Ua. Ventilation of the interior by movement of the X beam 41A in a positional relationship corresponding to the movement range Ua, such as when the distance from the end positions K1 and K2 is within a predetermined value (for example, within 5 cm). It is also possible to arrange the air intake and exhaust holes 115A and 116A at such positions. The same applies to the other air intake and exhaust holes such as the air intake and exhaust holes 115B and 116B.

  Further, in the first embodiment, in the vertical direction (Z direction), the entirety of the air intake and exhaust holes 115A and 116A overlaps with the X beam 41A, but an arrangement in which at least a part thereof overlaps may be adopted. The same applies to the other air intake and exhaust holes such as the air intake and exhaust holes 115B and 116B.

  (3) In the first embodiment, an example is shown in which two air intake / exhaust holes 115A and 116A are provided in the front cover 110A corresponding to the X beam 41A. It is sufficient that at least two intake / exhaust holes are provided in the Y direction corresponding to one X beam 41, and the number may be two or more such as four or six.

  (4) In the first embodiment, the suction and exhaust holes 115 and 116 are provided on the front cover 110 that covers the front side in the X direction of the surface mounter main body 10, and the suction and exhaust holes 125 and 126 are provided on the rear cover 120 that covers the rear side in the X direction. Examples were shown. The intake / exhaust holes 115 and 116 and the intake / exhaust holes 125 and 126 may be provided on, for example, the top covers 150A to 150C as long as they are located at positions corresponding to the movement ranges Ua to Ud of the X beams 41A to 41D.

  (5) In the second embodiment, an example is shown in which the intake fans 200A to 200D are provided at positions corresponding to the component extraction positions Pu of the X beams 41A to 41D. The positions of the intake fans 200A to 200D may be other positions as long as the stop frequency is expected to be high among the moving ranges Ua to Ud of the X beams 41A to 41D. For example, if the stopping frequency of the X beams 41A to 41D is expected to be high in the mounting work area J, the intake fans 200A to 200D are provided at positions corresponding to the mounting work area J of the X beam. May be. The “stop” here includes not only the state where the X beams 41A to 41D are completely stopped but also the state where the X-beams 41A to 41D vibrate minutely to be regarded as stopped.

  (6) The electromagnetic coils 95A to 95D may be cooled by using the standby time of the mounting heads 70A to 70D (time to wait for start and restart of the mounting operation). That is, for example, after the printed circuit board is discharged from the mounting operation position upon completion of the mounting operation, the waiting time until the next printed circuit board is conveyed to the mounting operation position is determined by the X-beam 41A to the control unit (not shown). The Y motor 90 is controlled so as to stop the 41D at a position corresponding to the intake fans 200A to 200D, and the electromagnetic coils 95A to 95D are opposed to the intake fans 200A to 200D to cool the electromagnetic coils 95A to 95D. Is also good. In addition, the electromagnetic coils 95A to 95D may be cooled by utilizing a waiting time generated when the mounting operation is temporarily suspended due to a sudden error or the like.

  (7) In the first embodiment, an example is shown in which two intake / exhaust holes 115A and 116A are provided in the front cover 110A corresponding to the X beam 41A. That is, an example in which the intake / exhaust hole 115A is provided at a position overlapping the mounting work area J of the X beam 41A as viewed in the X direction, and the intake / exhaust hole 116A is provided at a position overlapping the component extraction position Pu of the X beam 41A as viewed from the X direction. Indicated. Of the two intake / exhaust holes 115A, 116A, the intake / exhaust hole 115A on the mounting work area J side is eliminated, and only the intake / exhaust hole 116A provided at a position overlapping the component extraction position Pu of the X beam 41A when viewed in the X direction is used. Is also good.

  As described above, even when the intake / exhaust hole 116A is provided only at a position overlapping the component extraction position Pu of the X beam 41A with respect to the front cover 110A when viewed in the X direction, as described below, the X beam 41A The inside of the refrigerator can be ventilated using the movement in the Y direction. That is, when the X beam 41A moves away from the component extraction position Pu in the Y direction, air is sucked in from the outside through the air intake / exhaust hole 116A, and conversely, the X beam 41A moves in the Y direction and the component extraction position. When approaching Pu, the air in the storage can be exhausted through the intake hole 41A. When the X beam 41A is stopped at the component extraction position Pu, the X beam 41A can be cooled by outside air.

  The suction / exhaust hole 116A only needs to be located at a position corresponding to the component extraction position Pu. In addition to the position overlapping the component extraction position Pu when viewed in the X direction, the distance from the component extraction position Pu is a predetermined value (for example, as an example). 5 cm) or less, and may be arranged in the vicinity of the component extraction position Pu. In addition, as long as the position corresponds to the component removal position Pu, it may be provided on the top cover 150A. The same applies to the other air intake and exhaust holes such as the air intake and exhaust holes 115B and 116B.

10 ... Surface mounter body 11 ... Base 21,22,23 ... Y beam (first beam)
41A-41D ... X beam (second beam)
70A to 70D ... Mounting head 80 ... X motor 81 ... Magnet (stator)
85 ... Electromagnetic coil (movable element)
90 ... Y motor 91, 92 ... Magnet (stator)
95 ... Electromagnetic coil (movable element)
100 cover 110 front cover 120 rear cover Ua-Ud moving range

Claims (5)

A surface mounter for mounting electronic components on a printed circuit board,
The surface mounter body,
A cover that covers the surface mounter body,
The surface mounter body,
A first beam;
A second beam movably supported in a first direction with respect to the first beam;
A mounting head supported with respect to the second beam,
The cover,
At least two intake / exhaust holes are provided at positions corresponding to the movement range of the second beam,
At least a part of the two intake / exhaust holes overlaps the second beam in a vertical direction,
The two air intake and exhaust holes are located apart in the first direction,
The second beam reciprocates in the first direction between a component removal position where the mounting head takes out an electronic component from a feeder and a mounting work area where the mounting head mounts the electronic component on a printed circuit board.
One of the two intake / exhaust holes is located at a position corresponding to the component take-out position, and the other intake / exhaust hole is located at a position corresponding to the mounting work area,
When the second beam moves in the first direction from the component extraction position toward the mounting operation area, air is taken into the refrigerator from the suction / exhaust hole on the component extraction position side, and the air in the refrigerator is removed by the mounting operation. Air is exhausted to the outside from the intake / exhaust holes on the area side, and an air flow is formed from the intake / exhaust holes on the component take-out position side to the intake / exhaust holes on the mounting work area side in the compartment, and ventilates the air in the cover,
When the second beam moves in the first direction from the mounting work area toward the component take-out position, air is taken into the compartment from the suction / exhaust hole on the mounting work area side, and the air in the compartment is moved to the component take-out position. The air is exhausted from the intake / exhaust hole on the side, and the flow of air from the intake / exhaust hole on the mounting work area side to the intake / exhaust hole on the component extraction position side is formed in the compartment, and the air in the cover is ventilated. Surface mounting machine. The surface mounter according to claim 1 ,
The surface mounter body includes a linear motor that moves the second beam in the first direction with respect to the first beam,
The linear motor,
A stator provided on the first beam and comprising a magnet;
And a mover comprising an electromagnetic coil, provided on the second beam. The surface mounter according to claim 2 ,
The first beam is provided with a holding plate for holding the stator made of the magnet on an inner surface,
Corresponding to the position higher stop frequency of the moving range of the second beam, to have a fan for cooling the electromagnetic coil of the second beam,
The fan is mounted on the outer surface side of the holding plate at the same height position as the electromagnetic coil,
By driving the fan, the outside air sucked from the air suction and exhaust holes passes through the through hole of the holding plate, and is blown to the electromagnetic coil located on the inner surface side of the holding plate, thereby cooling the electromagnetic coil. Surface mounting machine. The surface mounting machine according to claim 3 , wherein
The position where the stop frequency is high is a component take-out position in which the mounting head takes out an electronic component from the feeder in the moving range of the second beam,
A surface mounter having the fan for cooling the electromagnetic coil of the second beam corresponding to the component extraction position. The surface mounter according to claim 2 ,
Have a fan for cooling the electromagnetic coil of said second beam from said first direction is the moving direction of the second beam,
The surface mounter , wherein a position of the fan in a second direction orthogonal to the first direction corresponds to a position of the electromagnetic coil .

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